Title:
CONSTRUCTION BEAM CONNECTION DEVICE
Kind Code:
A1


Abstract:
A construction beam connection device includes an abutment member, a connection member positioned under the abutment member and a threaded assembly fixedly connected with the abutment member and extending through the connection member. The connection device can be directly mounted at the junction between beams. The threaded assembly serves to fasten the abutment member to the connection member so as to securely connect the construction beams with each other. Accordingly, the safety in working can be ensured and the working is facilitated.



Inventors:
Shih, Lung Ching (Taichung City, TW)
Application Number:
14/549415
Publication Date:
11/12/2015
Filing Date:
11/20/2014
Assignee:
SUCOOT INDUSTRIAL CO., LTD.
Primary Class:
International Classes:
E04B1/41
View Patent Images:
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Primary Examiner:
MINTER, KEITH
Attorney, Agent or Firm:
Guice Patents PLLC (Manassas, VA, US)
Claims:
What is claimed is:

1. A construction beam connection device comprising: an abutment member having two abutment sections positioned side by side at a certain interval, and a top section transversely connected between top edges of the two abutment sections; a connection member having a main body and a connection section disposed on one side of the main body; a perforation being formed through the main body; the connection member being positioned under the abutment member; and a threaded assembly including a threaded rod and a nut, one end of the threaded rod being fixedly connected with the top section of the abutment member, a free end of the threaded rod extending through the perforation of the connection member; the nut being screwed on the free end of the threaded rod and positioned under the main body of the connection member; when rotating the threaded rod, the abutment member being driven to rotate along with the threaded rod.

2. The connection device as claimed in claim 1, wherein the height of the connection section of the connection member is lower than the height of the main body.

3. The connection device as claimed in claim 1, wherein the main body of the connection member is plate-shaped and the connection section is a hook section disposed on one side of the main body.

4. The connection device as claimed in claim 2, wherein the main body of the connection member is plate-shaped and the connection section is a hook section disposed on one side of the main body.

5. The connection device as claimed in claim 1, wherein the main body and the connection section of the connection member are both plate-shaped and one side of the main body is connected with one side of the connection section; the connection member having at least one reinforcement section, the thickness of the connection member at the reinforcement section being larger than the thickness of the connection member at any other part.

6. The connection device as claimed in claim 2, wherein the main body and the connection section of the connection member are both plate-shaped and one side of the main body is connected with one side of the connection section; the connection member having at least one reinforcement section, the thickness of the connection member at the reinforcement section being larger than the thickness of the connection member at any other part.

7. The connection device as claimed in claim 5, wherein the connection member has a first reinforcement section and a second reinforcement section, the first reinforcement section being disposed under a bottom face of the main body around the perforation; the second reinforcement section being positioned at a junction between the bottom faces of the main body and the connection section.

8. The connection device as claimed in claim 1, wherein the top section of the abutment member is formed with a through hole; the connection device further comprising a bolt having a head section and a threaded rod connected with the head section, the bolt being extended through the through hole and fixedly connected with the abutment member, the threaded rod of the bolt being said threaded rod.

9. A construction beam connection device comprising: at least one abutment member having two abutment sections arranged side by side, and a top section transversely connected between top edges of the two abutment sections; a connection member having a main body and a connection section, the main body being substantially U-shaped and having a plane plate section and two vertical walls disposed on two sides of the plane plate section; a holding space being defined between the plane plate section and the two vertical walls; at least one perforation being formed through the plane plate section; at least two threaded holes being respectively disposed on the two vertical walls; the connection section being composed of at least two rod-shaped fastening members, the two fastening members being respectively screwed in the threaded holes, one end of each fastening member extending into the holding space; the connection member being positioned under the abutment member; and at least one threaded assembly including a threaded rod and a nut, one end of the threaded rod being fixedly connected with the top section of the abutment member, a free end of the threaded rod extending through the perforation of the connection member; the nut being screwed on the free end of the threaded rod and positioned under the main body of the connection member, when rotating the threaded rod, the abutment member being driven to rotate along with the threaded rod.

10. The connection device as claimed in claim 9, comprising two or more abutment members, two or more perforations and two or more threaded assemblies, each abutment member being aligned with a perforation and a threaded assembly, the abutment members, the perforations and the threaded assemblies being arranged from one side to the other side of the main body.

11. The connection device as claimed in claim 9, wherein each fastening member is a bolt.

12. The connection device as claimed in claim 9, wherein at least one second nut is disposed on each vertical wall of the main body of the connection member, the threaded hole of the second nut serving as the threaded hole of the vertical wall.

13. The connection device as claimed in claim 10, wherein at least one second nut is disposed on each vertical wall of the main body of the connection member, the threaded hole of the second nut serving as the threaded hole of the vertical wall.

14. The connection device as claimed in claim 11, wherein at least one second nut is disposed on each vertical wall of the main body of the connection member, the threaded hole of the second nut serving as the threaded hole of the vertical wall.

15. The connection device as claimed in claim 9, wherein the top section of the abutment member is formed with a through hole; the connection device further comprising a bolt having a head section and a threaded rod connected with the head section, the bolt being extended through the through hole and fixedly connected with the abutment member, the threaded rod of the bolt being said threaded rod.

16. A construction beam connection device comprising: at least two abutment members each having two abutment sections arranged side by side, and a top section transversely connected between top edges of the two abutment sections; a connection member having a main body, the main body having a plane plate section; at least two perforations being formed through the plane plate section; the connection member being positioned under the abutment member; and at least two threaded assemblies, each the threaded assembly including a threaded rod and a nut, one end of the threaded rod being fixedly connected with the abutment member, a free end of the threaded rod extending through a perforation of the connection member; the nut being screwed on the free end of the threaded rod and positioned under the plane plate section, when rotating the threaded rod, the abutment member being driven to rotate along with the threaded rod.

17. The connection device as claimed in claim 16, wherein the top section of the abutment member is formed with a through hole; the connection device further comprising a bolt having a head section and a threaded rod connected with the head section, the bolt being extended through the through hole and fixedly connected with the abutment member, the threaded rod of the bolt being said threaded rod.

Description:

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to a construction implement, and more particularly to a construction beam connection device.

2. Description of the Related Art

FIGS. 21 and 22 show a conventional connection device 70 for connecting a wooden beam 78 with a support beam 79. The wooden beam 78 is positioned on the support beam 79. The connection device 70 has a left half body 72 and a right half body 74. The bottoms of the left and right half bodies 72, 74 are hooked with each other. A bolt 77 is screwed through the bottom wall of the left half body 72. Two hook sections 76 of top ends of the left and right half bodies 72, 74 hook the bottom 781 of the wooden beam 78. The top board 791 of the support beam 79 extends into a recess 75 of the left and right half bodies 72, 74. The bolt 77 abuts against the top board 791.

The above connection device 70 is used to connect the two beams 78, 79. However, the two beams 78, 79 can be hardly securely connected by such connection device 70. This is because the top sections of the left and right half bodies 72, 74 are open. When the bolt 77 is tightened to make the connection device 70 fasten the two beams 78, 79 with each other, the top sections of the left and right half bodies 72, 74 will be outward biased. This will affect the holding effect of the connection device for the two beams 78, 79. Moreover, in use of the connection device, the connection device is likely to be bent. Therefore, the two beams 78, 79 can be hardly securely connected with each other.

SUMMARY OF THE INVENTION

It is therefore a primary object of the present invention to provide a construction beam connection device. The connection device serves to securely connect two or more beams with each other to ensure safety in working and facilitate the construction work.

It is a further object of the present invention to provide the above construction beam connection device. The connection device is able to securely connect two different forms of beams in an intersecting state.

It is still a further object of the present invention to provide the above construction beam connection device. The connection device is able to securely connect two or more beams, which are side by side arranged.

It is still a further object of the present invention to provide the above construction beam connection device. The connection device includes an abutment member. The abutment member can directly extend into the junction between the beams to facilitate connection between the beams.

The construction beam connection device of the present invention includes:

    • an abutment member having two abutment sections and a top section transversely connected between the two abutment sections;
    • a connection member having amain body and a connection section connected with the main body, a perforation being formed through the main body, the connection member being positioned under the abutment member; and
    • a threaded assembly including a threaded rod and a nut, one end of the threaded rod being connected with the abutment member, a free end of the threaded rod extending through the perforation of the connection member, the nut being screwed on the free end of the threaded rod and positioned under the connection member, when rotating the threaded rod, the abutment member being driven to rotate along with the threaded rod.

Preferably, the connection section of the connection member is a hook section.

Preferably, the connection section of the connection member is plate-shaped and a height drop is defined between the connection section and the main body.

Preferably, at least one reinforcement section is disposed under the bottom face of the connection member.

According to the above design, the connection device can be used to securely connect two different forms of construction beams.

Preferably, the main body of the connection member is substantially U-shaped and has a plane plate section and two vertical walls disposed on two sides of the plane plate section. The connection section is composed of at least two rod-shaped fastening members. The two fastening members are respectively screwed through the vertical walls of the main body. One end of each fastening member extends into the main body. According to the above design, the connection device can be used to securely connect multiple construction beams, which are side by side arranged.

Accordingly, the form of the connect ion member of the connection device of the present invention is variable in accordance with different configurations of construction beams. The connection device can be used to securely and conveniently connect two or more construction beams. After connected, the beams are unlikely to loosen or slip. Therefore, the construction work is facilitated and the safety in working is ensured. The threaded rod of the threaded assembly can be rotated to move the abutment member between different angular positions, whereby the abutment member is easy to extend into the beams to connect the beams with each other.

The present invention can be best understood through the following description and accompanying drawings, wherein:

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a first embodiment of the connection device of the present invention;

FIG. 2 is a perspective exploded view according to FIG. 1;

FIG. 2A is a perspective view showing another aspect of the abutment member;

FIG. 3 is a perspective view showing that the connection device of the present invention is used to connect two beams;

FIG. 4 is a side view according to FIG. 3;

FIG. 5 is a side view according to FIG. 4, showing that the abutment member is rotated;

FIG. 6 is a perspective view showing that the two beams are connected by the connection device of the present invention;

FIG. 7 is a sectional view taken along line 7-7 of FIG. 6;

FIG. 8 is a sectional view taken along line 8-8 of FIG. 6;

FIG. 9 is a perspective view according to FIG. 6, showing that the connection device of the present invention is used to connect two beams containing a non-90-degree angle;

FIG. 10 is a perspective view of a second embodiment of the connection device of the present invention;

FIG. 11 is a perspective exploded view according to FIG. 10;

FIG. 12 is a perspective view showing the use of the second embodiment of the present invention;

FIG. 13 is a sectional view taken along line 13-13 of FIG. 12;

FIG. 14 is a perspective view of a third embodiment of the connection device of the present invention;

FIG. 15 is a perspective exploded view according to FIG. 14;

FIG. 16 is a perspective view showing the use of the third embodiment of the present invention;

FIG. 17 is a sectional view taken along line 17-17 of FIG. 16;

FIG. 18 is a sectional view of a fourth embodiment of the connection device of the present invention;

FIG. 19 is a perspective view of a fifth embodiment of the present invention;

FIG. 20 is a sectional view of a sixth embodiment of the present invention, showing that the connection device of the present invention is used to securely connect two beams;

FIG. 21 is front view of a conventional connection device; and

FIG. 22 is a side view according to FIG. 21, showing the use of the conventional connection device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Please refer to FIGS. 1 and 2. According to a first embodiment, the construction beam connection device 10 of the present invention includes an abutment member 20, which is a metal plate body with a reverse U-shaped cross section. The abutment member 20 includes two abutment sections 22 positioned side by side at a certain interval, and a top section 24 transversely connected between top edges of the two abutment sections 22. A through hole (not shown) is formed through a center of the top section 24 between a top face and a bottom face of the top section.

The construction beam connection device 10 of the present invention further includes a connection member 30, which is a metal plate material. The connection member 30 includes a plate-shaped main body 32 and a connection section 34. In this embodiment, the connection section 34 is a hook section connected with one side of the main body 32 via a connection wall 341. The position of the connection section 34 and the position of the main body 32 have a height drop. That is, in this embodiment, the height of the connection section (hook section) 34 is lower than the height of the main body 32. A perforation 36 is formed through the main body 32 between a top face and a bottom face of the main body.

The construction beam connection device 10 of the present invention further includes a threaded assembly 40 including a bolt 42 and a nut 44. The bolt 42 has a threaded rod 43 and a head section 422 connected with the threaded rod. The threaded rod 43 of the bolt 42 extends through the through hole of the top section 24 of the abutment member 20 and the perforation 36 of the main body 32 of the connection member 30. The head section 422 of the bolt 42 is fixedly connected with the top section 24 of the abutment member 20 by means of welding or fusion so as to fixedly connect the threaded rod 43 with the abutment member 20. When rotating the threaded rod 43, the abutment member 20 is also rotated to change the direction of the abutment member 20. The nut 44 is screwed on a free end of the threaded rod 43 corresponding to the main body 32 of the connection member 30. In the above embodiment, the threaded rod 43 is provided by the bolt 42. Alternatively, as shown in FIG. 2A, one end of the threaded rod 43 is directly fixedly connected with the top section 24 of the abutment member 20.

Please now refer to FIGS. 3 to 8, which show the use of a first embodiment of the connection device 10 of the present invention. In this embodiment, the connection device 10 is used to connect two construction beams. A construction beam 50 pertaining to subsidiary beams, (that is, the beams not the main structure beams of the system frame built in the construction site) and a main beam 60, (that is, the main structure beam of the system frame built in the construction site) are connected by the connection device 10. The construction beam 50 has two vertical walls 51 and a top wall 52. Two bottom walls 53 are respectively connected with bottom edges of the two vertical walls 51. Two upright walls 54 respectively upward extend from the two bottom walls 53. A split 56 is defined between the two upright walls 54. The main beam 60 has an I-shaped cross section. The main beam 60 has a top board 62 and a bottom board 63. Each lateral edge of each of the top board 62 and the bottom board 63 is formed with an upright wall 64.

As shown in FIGS. 3 to 8, the construction beam 50 is bridged over the main beam 60 to intersect the main body 60 by 90 degrees. The connection device is used to connect the beam 50 with the main beam 60. When connected, the abutment member 20 is first positioned with its longitudinal direction in parallel to the longitudinal direction of the beam 50. The abutment member 20 is extended into/placed into the beam 50 from the bottom of the beam 50 through the split 56 as shown in FIGS. 3 and 4. At this time, the two abutment sections 22 will not hinder the abutment member 20 from extending into the split 56. When the abutment member 20 become higher than the upright walls 54 of the beam 50, the threaded rod 43 is rotated to position the two abutment sections 22 of the abutment member 20 above the two bottom walls 53 of the beam 50 as shown in FIG. 5. Then, the bottom ends of the two abutment sections 22 of the abutment member 20 are bridged between the bottom walls 53 of the beam 50 into contact with the bottom walls 53 of the beam 50 as shown in FIGS. 6 and 7. The connection member 30 is positioned under the abutment member 20 outside the beam 50. The connection section (hook section) 34 of the connection member 30 is directed to the main beam 60 to hook the upright wall 64 of a lateral edge of the top board 62 of the main beam as shown in FIGS. 6 to 8. The threaded assembly 40 extends through the split 56 of the beam 50. When the nut 44 is tightened with the threaded rod 43 of the threaded assembly 40, the abutment member 20 is tightened with the connection member 30, whereby the two abutment sections 22 of the abutment member 20 and the main body 32 of the connection member 30 tightly hold the bottom walls 53 of the beam 50. At the same time, the connection section 34 of the connection member tightly hooks the upright wall 64 of the lateral edge of the top board 62 of the main beam 60. Under such circumstance, the beam 50 is securely connected with the main beam 60.

According to the above arrangement, by means of rotating the threaded rod 43 of the threaded assembly 40, the direction of the abutment member 20 is adjustable. Accordingly, the abutment member 20 can be directly extended into the construction beam 50 from the split 56 of the bottom end of the beam 50. In this case, the two beams 50, 60 can be conveniently connected with each other by the connection device 10.

Please now refer to FIG. 9. The threaded rod 43 is passed through the main body 32 of the connection member 30 and is freely rotatable. Therefore, the abutment member 20 is rotatable relative to the connection member 30. When the construction beam 50 is bridged over the main beam 60 by a non-90-degree angle, the abutment member 20 and the connect ion member 30 of the connection device 10 can be still adjusted in accordance with the angle contained between the beam 50 and the main beam 60 to connect the beam 50 with the main beam 60. Accordingly, in the case that the two beams are bridged over each other non-perpendicularly, the connection device of the present invention can be still used to connect the two beams.

Please now refer to FIGS. 10 and 11, which show a second embodiment of the connection device 10′ of the present invention. The same components as the first embodiment are denoted with the same reference numerals.

The connection device 10′ also includes an abutment member 20, a connection member 30 and a threaded assembly 40. The abutment member 20 and the threaded assembly 40 are identical to those of the first embodiment and thus will not be repeatedly described.

The connection member 30 is also a metal plate material, including a plate-shaped main body 32 and a plate-shaped connection section 35. One side of the connection section 35 is overlapped and connected with one side of the main body 32. The connection section 35 is lower than the main body 32, whereby a height drop is defined between the connection section 35 and the main body 32. A first reinforcement section 351 protrudes from the center of a bottom face of the main body 32 around the perforation 36. A second reinforcement section 352 is disposed under the bottom face of the connection section 35. The second reinforcement section 352 has a thicker thickness at the junction between the main body 32 and the connection section 35. One side of the first reinforcement section 351 is connected with one side of the second reinforcement section 352. The thickness of the first and second reinforcement sections 351, 352 is larger than the thickness of other parts of the connection member to increase the structural strength of the connection member 30 and prevent the connection member 30 from being flexed. The threaded rod 43 of the threaded assembly 40 extends through the perforation 36 of the connection member 30 and the nut 44 is screwed on the free end of the threaded rod 43 to complete the assembly of the connection device 10′.

Please refer to FIGS. 12 and 13. In this embodiment, the connection device 10′ is used to connect a beam 50 with another main beam 65. The main beam 65 is an I-beam having a top board 66 and a bottom board 68.

When connected, the abutment member 20 of the connection device 10′ is first positioned with its longitudinal direction in parallel to the longitudinal direction of the construction beam 50 as shown in FIGS. 3 and 4. The abutment member 20 is extended into the split 56 of the beam 50. Then the threaded rod 43 is rotated to move the two abutment sections 22 of the abutment member 20 to a position above the bottom walls 53 of the beam 50 into contact with the bottom walls 53. The connection member 30 is positioned under the beam 50 and the connection section 35 is directed to the main beam 65 to hold one side of the top board 66 of the main beam. When the nut 44 of the threaded assembly 40 is tightened with the threaded rod 43, the abutment sections 22 of the abutment member 20 and the connection section 35 of the connection member 30 tightly hold the bottom walls 53 of the beam 50 and the top board 66 of the main beam 65. Under such circumstance, the abutment member 20 and the connection member 30 securely hold the beam 50 and the main beam 65 to connect the beam with the main beam. By means of the two reinforcement sections 351, 352, when the abutment member 20 and the connection member 30 securely hold the beam 50 and the main beam 65, the connection section 35 of the connection member 30 is not subject to bending. Also, the junction between the main body 32 and the connection section 35 has stronger connection strength without easy breakage. Therefore, the connection member 30 can bear greater weight. The top face of the connection section 35 is a clamping face 353 as shown in FIG. 11. The clamping face 353 can be formed with teeth, raised/recessed stripes or roughened surface to enhance the holding effect of the connection section 35 for the main beam.

Please now refer to FIGS. 14 and 15, which show a third embodiment of the connection device 10″ of the present invention. The connection device 10″ also includes an abutment member 20, a connection member 30 and a threaded assembly 40. The abutment member 20 and the threaded assembly 40 are identical to those of the first embodiment and thus will not be repeatedly described.

The connection member 30 includes a main body 32 and a connection section 33. The main body 32 is a substantially U-shaped metal plate material, having a plane plate section 321 and two vertical walls 322. At least two threaded holes 323 are respectively formed on the two vertical walls 322. A holding space 38 is defined between the plane plate section 321 and the two vertical walls 322. In this embodiment, each vertical wall 322 is formed with at least one through hole 324. At least two second nuts 325 are respectively fixedly disposed on outer faces of the two vertical walls 322 in alignment with the two through holes 324. The threaded holes of the two second nuts 325 serve as the aforesaid threaded holes 323. The connection section 33 is composed of at least two rod-shaped fastening members 331. Each fastening member 331 is a bolt. The two fastening members 331 are respectively screwed into the threaded holes 323. One end of the rod body 332 of the fastening member 331 extends into a lateral side of the holding space 38. A perforation 36 is formed through a center of the plane plate section 321 between a top face and a bottom face of the plane plate section 321. The perforation 36 is spaced from the two vertical walls 322 by equal distance. Preferably, at least one reinforcement section 326 is formed at the junction between each vertical wall 322 and the plane plate section 321 by punching to increase the strength between the vertical walls 322 and the plane plate section 321 and the force bearing ability. The threaded rod 43 of the threaded assembly 40 is fixedly disposed on the abutment member 20 and extends through the perforation 36 of the main body 32. The nut 44 is screwed on the free end of the bolt 42. The threaded assembly 40 is positioned at the center of the main body 32.

In this embodiment, the connection device 10″ is used to fixedly connect multiple construction beams, which are side by side arranged. Please refer to FIGS. 16 and 17. When connected, three beams 50 are placed into the holding space 38 of the main body 32, and the abutment member 20 is extended into/placed into the middle beam 50a from the split 56 thereof, then the threaded rod 43 is rotated to move the two abutment sections 22 of the abutment member 20 into contact with the bottom walls 53 of the beam 50a. The main body 32 of the connection member 30 holds the bottom sections of the three beams 50. To speak more specifically, the plane plate section 321 of the main body 32 is snugly attached to the bottom walls 53 of the three beams 50 and the two vertical walls 322 are respectively positioned on outer sides of two lateral beams 50b. The threaded assembly 40 extends through the split 56 of the middle beam 50a. When the nut 44 of the threaded assembly 40 is tightened with the threaded rod 43, the abutment sections 22 of the abutment member 20 and the plane plate section 321 of the main body 32 hold the bottom walls 53 of the beams. Then, the two fastening members 331 are tightened to make the rod bodies 332 abut against the vertical walls 51 of the lateral beams 50b, whereby the beams are tightly leant against each other to form a solid structure without slippage. Accordingly, the connection device can be used to connect multiple beams 50, which are side by side arranged to provide strength as the main beam.

FIG. 18 shows a fourth embodiment of the connection device 10′″ of the present invention. The same components are denoted with the same reference numerals as the third embodiment. The fourth embodiment is different from the third embodiment in that the fourth embodiment includes multiple abutment members 20, for example, three abutment members 20. The three abutment members 20 are connected with the main body 32 of the connection member 30 by means of multiple threaded assemblies 40. To speak more specifically, the main body 32 is formed with three perforations 36 arranged between two sides of the main body 32 at equal intervals, for example, arranged at the center and two sides of the main body 32. Three threaded assemblies 40 are respectively correspondingly fixedly disposed on the three abutment members 20 to extend through the three perforations 36 and connect the abutment members 20 with the connection member 30. Accordingly, the connection device 10′″ has three abutment members 20.

When the connection device 10′″ is used to securely connect the three beams, the abutment members 20 and the main body 32 of the connection member 30 together securely hold all the three beams including the middle beam 50a and the lateral beams 50b. Therefore, this embodiment provides a more secure connection effect. Moreover, the three beams 50 are all securely held by the main body 32 and the three abutment members 20 so that the three beams can be reliably secured to each other even without the two fastening members 331.

FIG. 19 is a perspective exploded view showing a fifth embodiment of the connection device 10″″ of the present invention. The fifth embodiment is substantially identical to the third embodiment in structure. The fifth embodiment is different from the third embodiment in that the two threaded holes 323 of the connection member 30 are directly formed on the two vertical walls 322 of the main body 32 for two fastening members 331 to screw in. In this embodiment, the way to securely connect the three side by side arranged beams is identical to that of the third embodiment.

FIG. 20 shows a sixth embodiment of the connection device 10″″′ of the present invention. The sixth embodiment only has one abutment member 20 and only one threaded assembly 40. The abutment member 20 is disposed on the main body 32 of the connection member 30 near a vertical wall 322 rather than at the center of the main body 32 for holding a beam not positioned at the center. It should be noted that in this embodiment, two abutment members and two threaded assemblies can be disposed on the connection member 30 to securely hold two beams.

In conclusion, the connection device of the present invention is designed for connection of construction beams. The connection device of the present invention can be used to connect two beams bridged over each other by 90 degrees or by a non-90-degree angle. Also, the connection device of the present invention can be used to securely connect multiple side by side arranged beams. The connection device can be directly and conveniently extended into the beams to connect the same in accordance with various construction requirements. Therefore, the working is facilitated.

The above embodiments are only used to illustrate the present invention, not intended to limit the scope thereof. Many modifications of the above embodiments can be made without departing from the spirit of the present invention.