JP2015214881A - Beam connection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a beam connection device capable of stably connecting two or more beams and improving safety and convenience of a construction.SOLUTION: A beam connection device includes: a pressing tool including two pressing sections arranged in parallel at a proper interval and an upper section for joining upper edges of the two pressing sections; a connection member which includes a body having a through hole and a connection section provided on one side of the body and is located below the pressing tool; and a screwing unit which includes a screw shaft having one end fixed to the upper section of the pressing tool and the free end boring the through hole of the connection member and a nut screwed to the free end of the screw shaft, is located below the body of the connection member and is rotated by driving the pressing tool when rotating the screw shaft.

Description

The present invention relates to a building article, and more particularly to a connecting device for connecting beams for building.

  In general, a building is completed by assembling a formwork and filling cement. Depending on the length, height and range of the building, the cement filling area may differ, and all the formwork may not be covered unless a plurality of beams are used. Since each beam is connected by a connecting device, the connecting device is extremely important.

  As shown in FIGS. 21 and 22, the conventional connecting device 70 is for connecting a wooden beam 78 and a supporting beam 79. The wooden beam 78 is located on the support beam 79. The bottoms of the left half 72 and the right half 74 of the connecting device 70 are hooked together. A bolt 77 is screwed to the bottom wall of the left half 72. The two hook portions 76 placed on the upper ends of the left half body 72 and the right half body 74 are hooked on the bottom portion 781 of the wooden beam 78. The upper plate 791 of the support beam 79 is inserted into a recess 75 between the left half 72 and the right half 74. The bolt 77 presses the upper plate 791.

  The connection device 70 can connect the wooden beam 78 and the support beam 79, but has a drawback that the connection is not secure. When the upper part of the left half 72 and the right half 74 is in an open state and the connecting device 70 tightens the wooden beam 78 and the support beam 79 by tightening the bolt 77, the upper part of the left half 72 and the right half 74. And the wooden beam 78 and the support beam 79 cannot be sandwiched well by the connecting device 70. The connecting device 70 is easily distorted and is not stable.

A main object of the present invention is to provide a beam connecting device capable of stably connecting two or more beams and improving the safety and convenience of construction.

Another object of the present invention is to provide a beam connecting device capable of connecting two beams of different types that intersect each other.

Another object of the present invention is to provide a beam connecting device capable of connecting two parallel beams.

Still another object of the present invention is to provide a beam connecting device in which a pressing tool can be directly inserted into a connecting portion between beams and the convenience of connecting the beams can be improved. is there.

According to the beam connecting device of the present invention, a pressing tool comprising two pressing parts arranged in parallel at an appropriate interval, and an upper part connecting the upper edges of the two pressing parts,
A main body and a coupling portion provided on one side of the main body, wherein the main body is provided with a through hole, and a coupling member located below the pressing tool;
The screw shaft includes a nut, and one end of the screw shaft is fixed to the upper portion of the pressing tool, the free end of which has a through hole in the coupling member, and the nut is screwed to the free end of the screw shaft. A screwing unit that is attached and is located below the main body of the coupling member and rotates when the pressing shaft is driven to rotate the screw shaft;
It is characterized by including.

According to the beam connecting device of the present invention, the height of the coupling portion of the coupling member is lower than the height of the main body.

According to the beam connecting device of the present invention, the main body of the coupling member has a piece shape, and the coupling portion has a hook shape and is provided on one side of the main body.

According to the connecting device for a beam of the present invention, the main body and the coupling portion of the coupling member are in the form of a piece, one side of the main body is connected to one side of the coupling portion, the coupling member has at least one reinforcing portion, The thickness of the reinforcing part of the coupling member is greater than the thickness of other parts of the coupling member.

According to the beam connecting device of the present invention, the coupling member has the first reinforcing portion and the second reinforcing portion, and the first reinforcing portion is provided on the bottom surface of the main body and surrounds the through hole. The second strengthening part is located at a connection location between the bottom face of the main body and the coupling part.

According to the beam connecting device of the present invention, at least one pressing tool comprising two pressing portions arranged in parallel, and an upper portion connecting the upper edges of the two pressing portions,
A main body having a substantially U-shape, including a flat plate portion and two standing walls respectively provided on both sides of the flat plate portion. A sandwiching space is formed between the walls, at least one through hole is provided in the flat plate portion, at least two screw holes are provided in the two standing walls, and the connecting portion is rod-shaped. Each of the two fasteners is screwed into two screw holes, one end of which is inserted into the sandwiching space, and
The screw shaft includes a nut, and one end of the screw shaft is fixed to the upper portion of the pressing tool, the free end of which has a through hole in the coupling member, and the nut is screwed to the free end of the screw shaft. A screwing unit that is attached and is located below the main body of the coupling member and rotates when the pressing shaft is driven to rotate the screw shaft;
Including
The coupling member is located below the pressing tool.

According to the beam connecting device of the present invention, each pressing tool includes two or two or more pressing tools, two or two or more through holes, and two or two or more screwing units. Corresponds to one through hole and one screwing unit, and the pressing tool, the through hole and the screwing unit are provided in order from one side of the main body to the other side.

According to the beam connecting device of the present invention, each fastener is a bolt.

According to the beam connecting device of the present invention, at least two pressing tools including two pressing portions arranged in parallel and an upper portion connecting the upper edges of the two pressing portions;
A main body, the main body has a flat plate portion, the flat plate portion is provided with at least two through holes, and a coupling member located below these pressing tools;
Each screw shaft includes a screw shaft and a nut. One end of each screw shaft is fixed to the pressing tool, and the free end has one through-hole in the coupling member. The nut is a free end of the screw shaft. At least two screwing units that are positioned below the flat plate portion and rotated by driving each pressing tool when rotating each screw shaft;
It is characterized by including.

According to the beam connecting apparatus of the present invention, the bolt further includes a bolt, the bolt having a head portion and a screw shaft connected to the head portion, and further having a perforation in the upper portion of the pressing tool. The bolt is perforated and fixed to the pressing tool, and the screw shaft of the bolt forms a screw shaft.

The beam connecting device of the present invention has the following effects.
(1) By changing the connecting member of the connecting device, it is possible to securely connect two different types of beams, making the connection of the beams convenient and making the connected beams difficult to loosen and slide. However, it is possible to carry out the construction smoothly, and it is possible to improve the safety and convenience of the construction.

(2) By rotating the pressing tool at a different angle by the screw shaft of the screwing unit, the pressing tool can be easily inserted into the beam and can be easily connected to the beam.

It is a three-dimensional view showing Example 1 of the present invention. It is a three-dimensional exploded view showing Example 1 of the present invention. It is a figure which shows another aspect of the pressing tool of Example 1 of this invention. It is a schematic diagram which shows the state which connects two beams by Example 1 of this invention. It is the figure seen from the edge part of the beam of the state which connects two beams by Example 1 of this invention. It is a schematic diagram which shows the state which is rotating the pressing tool of Example 1 of this invention. It is a three-dimensional view which shows the state which connects two beams by Example 1 of this invention. It is sectional drawing of the 7-7 line | wire of FIG. It is sectional drawing of the 8-8 line | wire of FIG. FIG. 7 is a three-dimensional view showing a state that is substantially the same as FIG. 6 but connected so that the opening angle of two beams is not 90 degrees. It is a three-dimensional view showing Example 2 of the present invention. It is a decomposition | disassembly solid view which shows Example 2 of this invention. It is a figure which shows the use condition of Example 2 of this invention. It is sectional drawing of the 13-13 line | wire of FIG. It is a three-dimensional view showing Example 3 of the present invention. It is a three-dimensional exploded view showing Example 3 of the present invention. It is a figure which shows the use condition of Example 3 of this invention. It is sectional drawing of the 17-17 line | wire of FIG. It is sectional drawing which shows Example 4 of this invention. It is a three-dimensional view showing Example 5 of the present invention. It is sectional drawing which shows Example 6 of this invention, Comprising: The state which fixes two beams is shown. It is a front view which shows the conventional connection apparatus. It is a side view which shows the conventional connection apparatus, Comprising: The use condition is shown.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Example 1
Please refer to FIG. 1 and FIG. The beam connecting device according to the present embodiment includes a pressing tool 20, a coupling member 30, and a screwing unit 40.

The pressing tool 20 includes two pressing portions 22 arranged in parallel at an appropriate interval, and an upper portion 24 that connects the upper edges of the two pressing portions 22, has a U-shaped cross section, and is made of a metal strip. It is. A through hole (not shown) is provided in the center of the upper portion 24. The through hole penetrates the upper surface and the bottom surface of the upper portion 24.

The coupling member 30 is a metal strip and includes a main body 32 having a strip shape and a coupling portion 34. In the present embodiment, the coupling portion 34 is a hook. The connecting wall 341 of the coupling portion 34 is connected to one side of the main body 32. The positions at which the coupling portion 34 and the main body 32 are located are different from each other. That is, in the present embodiment, the height of the coupling portion (hook) 34 is lower than the height of the main body 32. The through hole 36 is provided in the main body 32 and penetrates the upper surface and the bottom surface of the main body 32.

The screwing unit 40 includes a bolt 42 and a nut 44. The bolt 42 includes a screw shaft 43 and a head portion 422 connected to the screw shaft 43. The screw shaft 43 of the bolt 42 is inserted into the through hole of the upper part 24 of the pressing tool 20 and the through hole 36 of the main body 32 of the coupling member 30. The head portion 422 of the bolt 42 is fixed to the upper portion 24 of the pressing tool 20 by a method such as welding. When the screw shaft 43 is drilled in the pressing tool 20 and the screw shaft 43 is rotated, the pressing tool 20 is driven to rotate. Thereby, it is possible to change the direction in which the pressing tool 20 is facing. The nut 44 is screwed to the free end of the screw shaft 43 and corresponds to the main body 32 of the coupling member 30. In addition to being a part of the bolt 42, one end of the screw shaft 43 may be fixed to the upper portion 24 of the pressing tool 20 as shown in FIG. 2A.

Please refer to FIG. 3 to FIG. 3 to 8 show the usage state of the connection device 10 of this embodiment. The connecting device 10 connects two beams. Specifically, the connecting device 10 connects a beam 50 and a main beam 60 (pointing to a main beam of a building structure), which are sub-beams (pointing to beams that are not the main beam of the building structure). . The beam 50 has two standing walls 51 and an upper wall 52. The two bottom walls 53 are respectively connected to the bottoms of the two standing walls 51. The two protruding walls 54 extend upward from the two bottom walls 53, respectively. A kerf 56 is formed between the two protruding walls 54. The main beam 60 has an E-shaped cross section and includes an upper plate 62 and a bottom plate 63. A convex edge 64 is provided on each side of the upper plate 62 and the bottom plate 63.

Please refer to FIG. 3 to FIG. The beam 50 straddles the main beam 60, has an opening angle of 90 degrees with the main beam 60, and is connected to the main beam 60 by a connecting device. When assembling, the vertical direction of the pressing tool 20 is parallel to the vertical direction of the beam 50, and the pressing tool 20 is passed from the bottom end of the beam 50 via the kerf 56 as shown in FIGS. 3 and 4. Plug in. At this time, the two pressing portions 22 do not interfere with the insertion of the pressing tool 20 into the kerf 56. When the pressing tool 20 is higher than the two protruding walls 54 of the beam 50, the two pressing portions 22 of the pressing tool 20 are moved to the two bottom walls of the beam 50 by rotating the screw shaft 43 as shown in FIG. 6 and 7, the two bottom walls of the beam 50 are arranged so that the bottom ends of the two pressing portions 22 of the pressing tool 20 straddle the two bottom walls 53 of the beam 50. 53 is contacted. The coupling member 30 is located below the pressing tool 20 and located outside the beam 50. The coupling portion (hook) 34 faces the main beam 60 as shown in FIGS. A convex edge 64 on one side of the upper plate 62 of 60 is hooked. The screwing unit 40 is provided with a kerf 56 in the beam 50. When the screw shaft 43 and the nut 44 of the screwing unit 40 are tightened, the pressing tool 20 and the coupling member 30 are tightened so that the two pressing portions 22 of the pressing tool 20 and the main body 32 of the coupling member 30 become the bottom wall 53 of the beam 50. The coupling portion 34 of the coupling member 30 hooks the convex edge 64 on the one side of the main beam 60 with the nip firmly held therebetween. In this way, the connection between the beam 50 and the main beam 60 is completed.

Thus, the direction of the pressing tool 20 can be adjusted by the screw shaft 43 of the screwing unit 40. Since the pressing tool 20 can be directly inserted into the beam 50 from the kerf 56 at the bottom end of the beam 50, the connecting device 10 can conveniently connect the beam 50 and the main beam 60.

Please refer to FIG. Since the main body 32 of the coupling member 30 is formed in the screw shaft 43 and can freely rotate, the pressing tool 20 and the coupling member 30 can be relatively rotated. When the opening angle of the beam 50 and the main beam 60 is not 90 degrees, the pressing tool 20 and the coupling member 30 of the connection device 10 may connect the beam 50 and the main beam 60 in accordance with the opening angle. Is possible. That is, even if the opening angle of the two beams is not 90 degrees, it is possible to connect the two beams by the connecting device of this embodiment.

(Example 2)
Please refer to FIG. 10 and FIG. In the connection device 10 ′ of the present embodiment, the same components as in the first embodiment use the same reference numerals.

As in the first embodiment, the connection device 10 ′ includes a pressing tool 20, a coupling member 30, and a screwing unit 40. Since the pressing tool 20 and the screwing unit 40 are the same as those in the first embodiment, description thereof is omitted.

The coupling member 30 includes a main body 32 having a strip shape and a coupling portion 35 having a strip shape, and is made of metal. Since one side of the coupling part 35 overlaps with one side of the main body 32 and is lower than the main body 32, a step is formed from the main body 32. The first reinforcing portion 351 is provided at the center of the bottom surface of the main body 32 and surrounds the through hole 36. The second reinforcing portion 352 is provided on the bottom surface of the coupling portion 35, and the thickness at the connecting portion between the main body 32 and the coupling portion 35 is thicker. One side of the first strengthening part 351 is connected to one side of the second strengthening part 352. The thickness of the 1st reinforcement | strengthening part 351 and the 2nd reinforcement | strengthening part 352 is thicker than the thickness of the other site | part of the coupling member 30. FIG. Thereby, the strength of the coupling member 30 can be improved, and the bending of the coupling member 30 can be prevented. The screw shaft 43 of the screwing unit 40 is drilled in the through hole 36 of the coupling member 30, and the nut 44 is screwed into the free end of the screw shaft 43, whereby the combination of the connecting devices 10 'is completed.

Please refer to FIG. 12 and FIG. The connection device 10 ′ of this embodiment connects the beam 50 and the main beam 65. The main beam 65 has an E-shaped cross section and includes an upper plate 66 and a bottom plate 68.

When assembling, the vertical direction of the pressing tool 20 of the connecting device 10 ′ is parallel to the vertical direction of the beam 50 and the pressing tool 20 is inserted into the kerf 56 of the beam 50 by the method shown in FIGS. 3 and 4. By rotating the screw shaft 43, the two pressing portions 22 of the pressing tool 20 rotate to reach above the two bottom walls 53 of the beam 50 and come into contact with the two bottom walls 53. The coupling member 30 is located below the beam 50, and the coupling portion 35 faces the main beam 65, and sandwiches one side of the upper plate 66 of the main beam 65. When the nut 44 of the screwing unit 40 is tightened, the pressing portion 22 of the pressing tool 20 and the connecting portion 35 of the connecting member 30 can firmly sandwich the bottom wall 53 of the beam 50 and the upper plate 66 of the main beam 65. is there. Thereby, since the pressing tool 20 and the coupling member 30 firmly sandwich the beam 50 and the main beam 65, the beam 50 and the main beam 65 are connected. When the connecting member 30 connects the main beam 65 due to the reinforcement of the first reinforcing portion 351 and the second reinforcing portion 352, the connecting portion 35 is hardly refracted, and the connecting portion of the main body 32 and the connecting portion 35 is not easily torn. . As a result, the weight that can be received by the coupling member 30 can be improved. As shown in FIG. 11, the upper surface of the coupling portion 35 is a sandwiching surface 353. The sandwiching surface 353 may be provided with tooth-like or uneven ridges. Thereby, it is possible to improve the effect of sandwiching the main beam 65 of the coupling portion 35.

(Example 3)
Please refer to FIG. 14 and FIG. As in the above embodiment, the connection device 10 ″ of the present embodiment includes a pressing tool 20, a coupling member 30, and a screwing unit 40. The structures of the pressing tool 20 and the screwing unit 40 are as follows. This is the same as Example 1.

The coupling member 30 includes a main body 32 and a coupling portion 33. The main body 32 has a substantially U shape, is made of metal, and includes a flat plate portion 321 and two standing walls 322. At least two screw holes 323 are provided in the two standing walls 322, respectively. The sandwiching space 38 is formed between the flat plate portion 321 and the two standing walls 322. In this embodiment, at least one perforation 324 is provided in each of the two standing walls 322, and at least two second nuts 325 are fixed to the outer surfaces of the two standing walls 322, respectively. Corresponding to two perforations 324. The screw holes of the two second nuts 325 form a screw hole 323. The coupling portion 33 is composed of two fasteners 331 having a rod shape. Each fastening tool 331 is a bolt. The two fasteners 331 are respectively screwed into the two screw holes 323, and one end of the rod 332 is inserted into the sandwiching space 38. The through hole 36 penetrates the upper surface and the bottom surface of the flat plate portion 321, is located at the center of the flat plate portion 321, and has the same distance from the two standing walls 322. It is preferable that at least one reinforcing portion 326 is formed by press working at a connection portion between each standing wall 322 and the flat plate portion 321. The reinforcing portion 326 can improve the strength between the two standing walls 322 and the flat plate portion 321 and can receive a larger force. A screw shaft 43 of the screwing unit 40 is fixed to the pressing tool 20, a through hole 36 of the main body 32 is formed, and a nut 44 is screwed to the free end of the bolt 42. The screwing unit 40 is located at the center of the main body 32.

The connecting device 10 ″ of this embodiment can fix a plurality of beams arranged in parallel. See FIGS. 16 and 17. When assembled, the three beams 50 are placed in the sandwiching space 38 of the main body 32. Then, the pressing tool 20 is inserted into the groove 56 of the beam 50a located at the center, and the screw shaft 43 is rotated so that the two pressing portions 22 of the pressing tool 20 come into contact with the two bottom walls 53 of the beam 50a. The main body 32 of the coupling member 30 covers the bottom portions of the three beams 50. Specifically, the flat plate portion 321 of the main body 32 contacts the bottom walls 53 of the three beams 50, and two standing walls 322 are formed. Are located on the outer sides of the beams 50b on both sides, and the screwing unit 40 is formed with a kerf 56 of the beam 50a in the center, and when the nut 44 of the screwing unit 40 is tightened, the pressing part of the pressing tool 20 is formed. 22 and the flat plate portion 321 of the main body 32 form the bottom wall 53 of the beam. Next, when the two fasteners 331 are tightened, the rods 332 are pressed against the standing walls 51 of the beams 50b on both sides so that the beams can be in close contact with each other and easily slide. Thus, the connecting device 10 ″ can connect a plurality of parallel beams 50, and these connected beams 50 can have the same strength as the main beam.

Example 4
Please refer to FIG. In the connection device 10 ″ ′ of this embodiment, the same parts as those in Embodiment 3 are used with the same reference numerals. The difference from Embodiment 3 in this embodiment is that there are a plurality of pressing tools 20 (for example, there are three). The plurality of screwing units 40 are connected to the main body 32 of the coupling member 30. Specifically, the three through holes 36 are provided in order from one side of the main body 32 to the other side at equal intervals. For example, it is provided at the center and both sides of the main body 32. The three screwing units 40 are fixed to the three pressing tools 20, respectively, and three through-holes 36 are drilled to provide three pressings. The tool 20 is coupled to the coupling member 30. The connecting device 10 "'has three pressing tools 20.

When the connecting device 10 ″ ′ connects the three beams, each beam (the beam 50a at the center or the beams 50b on both sides) is sandwiched and fixed between one pressing tool 20 and the main body 32 of the coupling member 30. On the other hand, since the three beams 50 are sandwiched and fixed between the main body 32 and the three pressing tools 20, the three beams 50 can be fixed without having the two clamping tools 331. It is possible to fix the beam 50 of the book well.

(Example 5)
Refer to FIG. The structure of the connecting device 10 ″ ″ of the present embodiment is almost the same as that of the third embodiment, but is different from the third embodiment in that the two screw holes 323 of the coupling member 30 are each provided with two standing bodies of the main body 32. It is provided directly on the wall 322, and the fastening tool 331 is screwed into the screw hole 323. In the present embodiment, the connection device 10 ″ ″ fixes the three beams in the same manner as in the third embodiment.

(Example 6)
Refer to FIG. The connection device 10 ″ ″ ′ of the present embodiment includes one pressing tool 20 and one screwing unit 40. The pressing tool 20 is not positioned at the center of the main body 32 of the coupling member 30, is adjacent to one standing wall 322, and is fixed by sandwiching a beam not positioned at the center. Of course, the coupling member 30 may have two pressing tools and two screwing units. Thereby, it is also possible to connect two beams.

The connecting device according to the present invention is designed for connecting a beam for construction, and can connect two beams having an opening angle of 90 degrees or an angle other than 90 degrees. Can be connected. And since the connection apparatus which concerns on this invention can be directly and conveniently inserted in the inside of each beam, it is possible to improve the convenience which connects a beam.

In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.

  The present invention can be applied to beams.

10, 10 ′, 10 ″, 10 ″ ″, 10 ″ ″, 10 ″ ″ ′ Connecting device 20 Pressing tool 22 Pressing portion 24 Upper portion 30 Connecting member 32 Body 33, 34, 35 Connecting portion 36 Through hole 38 Pinch space 40 Screw Landing unit 42 Bolt 43 Screw shaft 44 Nut 50 Beam 51 Standing wall 52 Top wall 53 Bottom wall 54 Projection wall 56 Grooves 60, 65 Main beams 62, 66 Upper plate 63, 68 Bottom plate 64 Convex edge 70 Connection device 72 Left half Body 74 Right half body 76 Hook part 77 Screw unit 78 Wood beam 79 Support beam 321 Flat plate part 322 Standing wall 323 Screw hole 324 Drilling 325 Second nut 326 Reinforcement part 331 Fastening tool 332 Rod 341 Connection wall 351 First reinforcement Part 352 second reinforcing part 353 sandwiching surface 422 head part 781 bottom part 791 upper plate

Claims (10)

A pressing tool comprising two pressing parts arranged in parallel at an appropriate interval; and an upper part connecting the upper edges of the two pressing parts in the lateral direction;
A main body and a coupling portion provided on one side of the main body, wherein the main body is provided with a through-hole, and a coupling member located below the pressing tool;
A screw shaft; and a nut, wherein one end of the screw shaft is fixed to an upper portion of the pressing tool, and a free end thereof is formed in the through hole of the coupling member, and the nut is the screw shaft. A screwing unit that is screwed to the free end of the coupling member and is located below the main body of the coupling member and rotates when the pressing tool is driven to rotate the screw shaft;
A connecting device for a beam, comprising:   The beam connection device according to claim 1, wherein a height of the coupling portion of the coupling member is lower than a height of the main body.   3. The beam connecting device according to claim 1, wherein the main body of the coupling member has a piece shape, and the coupling portion is a hook edge provided on one side of the main body. The main body and the coupling portion of the coupling member are in a piece shape, and one side of the main body is connected to one side of the coupling portion,
The said coupling member has at least 1 reinforcement | strengthening part, The thickness of the said reinforcement part of the said coupling member is larger than the thickness of the other site | part of the said coupling member, The Claim 1 or 2 characterized by the above-mentioned. Connecting device for beams. The coupling member has a first reinforcing part and a second reinforcing part,
The first reinforcing part is provided on a bottom surface of the main body and surrounds the through hole, and the second reinforcing part is located at a connecting portion between the main body and the bottom surface of the coupling part. Item 5. The beam connecting device according to Item 4. At least one pressing tool comprising: two pressing portions arranged in parallel; and an upper portion connecting the upper edges of the two pressing portions in the lateral direction;
A main body, the main body has a substantially U-shape, and includes a flat plate portion and two standing walls provided on both sides of the flat plate portion, A sandwiching space is formed between the two standing walls, the flat plate portion is provided with at least one through hole, and the two standing walls are provided with at least two screw holes, The coupling portion is composed of at least two rod-shaped fasteners, the two fasteners are respectively screwed into the two screw holes, and one end of which is inserted into the sandwiching space;
A screw shaft; and a nut, wherein the screw shaft has one end fixed to the upper portion of the pressing tool, and a free end drilled in the through hole of the coupling member. The nut includes the screw shaft. A screwing unit that is screwed to the free end of the coupling member, is positioned below the main body of the coupling member, and rotates when the pressing tool is driven to rotate the screw shaft;
Including
The connecting device for a beam, wherein the coupling member is located below the pressing tool.   Two or two or more pressing tools, two or two or more through holes, and two or two or more screwing units, each pressing tool having one through hole and one The said pressing tool, the said through-hole, and the said screwing unit corresponding to the said screwing unit are provided from the one side of the said main body to the other side, The Claim 6 characterized by the above-mentioned. Connecting device for beams.   The beam connecting device according to claim 6, wherein each of the fasteners is a bolt. At least two pressing tools comprising: two pressing portions arranged in parallel; and an upper portion connecting the upper edges of the two pressing portions in the lateral direction;
A main body, the main body has a flat plate portion, the flat plate portion is provided with at least two through-holes, and a coupling member positioned below these pressing tools;
Each screw shaft includes a screw shaft and a nut. Each screw shaft has one end fixed to the pressing tool, and a free end formed in one through hole of the coupling member. The nut is screwed to the free end of the screw shaft, and is positioned below the flat plate portion. When the screw shaft is rotated, at least two of the pressing tools are driven to rotate. A screwing unit;
A connecting device for a beam, comprising: In addition, including bolts,
The bolt has a head portion and the screw shaft connected to the head portion,
The upper part of the pressing tool is further provided with a perforation,
The bolt is drilled in the perforation and secured to the pressing tool;
10. The beam connecting device according to claim 1, wherein the screw shaft of the bolt forms the screw shaft.