Fixture for furniture assembly

Abstract

The utility model discloses a fixture for furniture assembly, and relates to the field of fixtures. The device comprises a hollow pipe, a slide way is arranged on the outer wall of the hollow pipe in the length direction and communicated with the hollow pipe, mounting plugs are detachably mounted at the two ends of the hollow pipe, and a two-way lead screw is coaxially arranged in the hollow pipe; the two ends of the two-way screw rod are in threaded connection with nuts, penetrate through the mounting plug and are rotationally mounted with the mounting plug; pistons are installed at the two ends in the hollow pipe in a sliding mode, the pistons and the nuts are coaxially assembled, sliding blocks are detachably installed on the outer walls of the pistons, and the sliding blocks are installed on the sliding ways in a sliding mode and protrude out of the outer wall of the hollow pipe; and clamping jaws are detachably mounted on the outer walls of the sliding blocks. The utility model has the beneficial effects that the two-way screw rod is meshed with the nut to drive the clamping jaws on the two sides to synchronously and relatively move on the hollow pipe, so that gathering or separation is realized, the synchronous adjustment of the clamping jaws improves the use efficiency, and the use universality is improved.

Description

Technical Field

[0001] The utility model belongs to the field of clamps, and in particular relates to a clamp for assembling furniture. Background Art

[0002] When furniture is produced, the various parts of the furniture are usually stored first, and then the parts are assembled. When assembling furniture, clamps are needed to clamp the parts to ensure the accuracy and stability of the parts during the assembly process.

[0003] The clamp currently used is to assemble a chuck at each end of the straight rod with bolts, and adjust the position of the chuck with bolts to clamp the component. The straight rod of the clamp is usually customized according to the specifications of the clamped component, so as to reduce the adjustment amount of the bolt on the chuck and achieve rapid clamping and fixing. Its advantage is that the position adjustment amount of the chuck is small and the clamping rate is fast. But its disadvantages are also obvious. Since most straight rods are customized parts, their versatility is poor. When the factory uses a large number of clamps, it will cause a large number of spare clamps, resulting in storage problems. Or the chuck is assembled separately at both ends of the straight rod, and the parts are clamped by adjusting the position of the chuck separately. Although it overcomes the problem of the versatility of the clamp, the separate adjustment of the chuck position causes the technical problem of low efficiency. If the efficiency is improved, it is also necessary to customize the straight rod to reduce the adjustment amount of the chuck and improve the efficiency, but it will also cause the technical problem of poor versatility. Utility Model Content

[0004] The utility model provides a furniture assembly fixture to solve the technical problem of poor versatility of existing furniture assembly fixtures. The two-way screw rod and the screw nut are engaged to drive the claws on both sides to move synchronously and relatively on the empty tube to achieve gathering or separation. The synchronous adjustment of the claws improves the use efficiency and improves its versatility.

[0005] The technical solution adopted by the utility model is: to provide a fixture for assembling furniture, including an empty tube, a slideway is arranged on the outer wall of the empty tube along the length direction, the slideway is connected to the empty tube, and installation plugs are detachably installed at both ends of the empty tube, and a bidirectional screw rod is coaxially arranged in the empty tube; both ends of the bidirectional screw rod are threadedly connected with nuts, and both ends of the bidirectional screw rod pass through the installation plugs and are rotatably installed with the installation plugs; pistons are slidably installed at both ends of the empty tube, the pistons are coaxially assembled with the nuts, and sliders are detachably installed on the outer walls of the pistons, the sliders are slidably installed with the slideway and protrude from the outer wall of the empty tube; claws are detachably installed on the outer walls of the sliders.

[0006] When the rotating bidirectional lead screw is engaged with the nut, the piston on the nut is slidably installed with the empty tube, and the slider on the piston is slidably connected with the slideway on the empty tube, so that the lead screw drives the piston to move smoothly along the empty tube, and the piston protrudes from the outer tube wall of the empty tube, so that the claws assembled on the piston avoid contact with the tube wall to cause interference and wear, and when clamping furniture, the piston first drives the claws to separate from each other so that there is enough space to place the claws on both sides of the furniture, and then the piston drives the claws closer to clamp and fix the furniture. The operation is simple, and the meshing of the lead screw and the nut is self-locking to avoid the claws from loosening. At the same time, there is no need to use additional locking devices, and the use is flexible.

[0007] To further optimize the technical solution, the mounting plugs are all threadedly connected to the empty pipe, and through holes are coaxially arranged on the mounting plugs, both ends of the bidirectional screw rods are rotatably mounted with the through holes and penetrate the through holes, and the bidirectional screw rods are coaxially rotatably mounted with the empty pipe with the aid of positioning pieces.

[0008] The mounting plug is threadedly connected to the empty pipe, which makes installation and disassembly convenient. After the bidirectional screw is coaxially supported in the empty pipe with the help of the positioning piece, the through hole on the mounting plug facilitates the bidirectional screw to pass through so as to operate it, and the through hole supports the bidirectional screw to improve the reliability of use.

[0009] To further optimize the technical solution, the positioning member includes connecting rings rotatably mounted on both ends of the bidirectional screw rod, the connecting rings are plugged into the inner wall of the empty tube, and one end face of the connecting ring abuts against the outer wall of the mounting plug.

[0010] After the connecting ring is plugged into the inner wall of the empty pipe, the bidirectional screw rod is supported, and after the connecting ring is abutted against the mounting plug, the position of the bidirectional screw rod is constrained to prevent the bidirectional screw rod from moving, thereby improving the stability and reliability of the operation of the bidirectional screw rod.

[0011] To further optimize the technical solution, the inner ring wall of the connecting ring is provided with a bearing, and the bearing is provided with a bidirectional screw rod; the inner ring wall of the connecting ring is provided with an elastic retaining ring, and the elastic retaining rings are provided on both sides of the bearing and both abut against the end face of the bearing.

[0012] The bidirectional screw is assembled with a bearing and a connecting ring. The bearing makes the rotation of the bidirectional screw along the connecting ring effortless and stable, while the elastic retaining ring in the connecting ring abuts against the end faces on both sides of the bearing, positioning the bearing while avoiding bearing movement, thereby ensuring the stability of the bidirectional screw operation.

[0013] To further optimize the technical solution, the outer wall of the piston is provided with a slot, the slider is plugged into the slot, and is fixed to the piston by means of bolts, and the bolts are flush with the upper end surface of the slider.

[0014] After the slider is inserted into the slot on the piston, the slide groove positions the slider so that the slider and the threaded holes on the piston overlap and are connected, which is convenient for assembling bolts to fix them. The operation is simple and labor-saving, and the bolts are flush with the upper end surface of the slider and do not interfere with the installation of the claws.

[0015] To further optimize the technical solution, crank handles are detachably mounted at both ends of the bidirectional screw rod, a docking groove is provided at one end of the crank handle, and the docking groove is plugged into the bidirectional screw rod with the aid of a docking piece.

[0016] The docking groove on the crank handle is connected with the bidirectional lead screw by means of a docking piece, and the assembly and disassembly are easy. The bidirectional lead screw is rotated by the crank handle, which saves effort and is easy to operate.

[0017] To further optimize the technical solution, the docking piece includes splines arranged at both ends of the bidirectional screw rod, and a keyway is arranged in the docking groove, and the spline is plugged into the keyway.

[0018] When the crank is connected to the bidirectional lead screw through the docking groove, the spline on the bidirectional lead screw is plugged into the keyway in the docking groove, so as to prevent the crank from spinning in vain and ensure smooth and stable use.

[0019] To further optimize the technical solution, the clamping claw is fixedly mounted to the slider by means of bolts.

[0020] The clamping claw is installed with the slider by bolts, and the assembly is firm, the effect is stable, the operation is simple, and the disassembly is convenient.

[0021] To further optimize the technical solution, a rubber sleeve is provided on the outer surface of the claw.

[0022] After the claw clamps the furniture, the claw contacts the furniture through the rubber sleeve. The rubber sleeve increases the friction between the claw and the furniture, avoids damage to the furniture, and improves safety in use.

[0023] The beneficial effects of the utility model are:

[0024] 1. By rotating the bidirectional screw rod and meshing with the nut, the claws on the piston are driven to move relatively along the empty tube. When clamping the furniture, the piston first drives the claws to move relatively and separate to pull down the interval, so as to facilitate the placement of the claws on both sides of the furniture. Then the bidirectional screw rod rotates in the opposite direction to make the claws approach each other and gradually contact with the surface of the furniture to clamp the furniture. The meshing of the bidirectional screw rod and the nut is self-locking to prevent the claws from loosening and improve the stability and reliability of clamping.

[0025] 2. The connecting rings on both sides of the bidirectional screw are plugged into the empty tube to coaxially support it in the empty tube. The connecting rings are in contact with the mounting plugs on both sides of the empty tube to clamp and fix the bidirectional screw to prevent the bidirectional screw from moving, making the use of the bidirectional screw stable and reliable. The bidirectional screw is assembled with the bearing and the connecting ring, making the rotation operation of the bidirectional screw labor-saving and smooth.

[0026] 3. The bidirectional screw is rotated by the cranks on both sides, which saves effort in operation. The crank is plugged into the bidirectional screw through the docking groove, which is easy to disassemble and assemble. The keyway in the docking groove is plugged into the spline on the bidirectional screw, which makes the rotating bidirectional screw stable, avoids the crank from spinning in vain, and ensures stable operation.

[0027] 4. When the slider and the piston are assembled, they are inserted and positioned with the slot on the piston, which facilitates the connection between the slider and the screw hole on the piston, making the installation of the bolts easy, and the bolts are flush with the upper end surface of the slider, without interfering with the installation of the claws and the slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of the fixture for assembling furniture according to this embodiment;

[0029] Figure 2 Schematic diagram of the structure inside the air tube of this embodiment;

[0030] Figure 3 This is a schematic diagram of the structure of the empty pipe and the installation plug in the present embodiment in a separated state;

[0031] Figure 4 This is a schematic diagram of the structure of the bidirectional screw rod and the piston assembly of this embodiment;

[0032] Figure 5 This is a schematic diagram of the split structure of the piston of this embodiment installed through the slider and the claw;

[0033] Figure 6 This is a schematic diagram of the structure of the installation of the bidirectional screw rod and the connecting ring of this embodiment;

[0034] Figure 7 Schematic diagram of the structure of the crank of this embodiment.

[0035] In the figure, 1, empty pipe; 101, slideway; 102, mounting plug; 1021, through hole; 103, piston; 1031, slot; 1032, bolt; 104, slider; 2, bidirectional screw rod; 201, nut; 202, connecting ring; 2021, bearing; 2022, elastic retaining ring; 203, spline; 3, claw; 301, rubber sleeve; 4, crank; 401, docking groove; 402, keyway. DETAILED DESCRIPTION

[0036] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] Please refer to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 6, a fixture for assembling furniture, comprising an empty tube 1, with installation plugs 102 detachably installed at both ends of the empty tube 1, the installation plug 102 is threadedly connected to the empty tube 1, and its installation and disassembly are simple, and the connection thread of the installation plug 102 and the empty tube 1 is a T-type thread, which ensures the installation strength, a bidirectional screw rod 2 is coaxially arranged in the empty tube 1, and the bidirectional screw rod 2 is coaxially supported in the empty tube 1 by arranging positioning pieces at both ends, and the positioning pieces include a connecting ring 202 rotatably sleeved on both ends of the bidirectional screw rod 2, the connecting ring 202 is plugged into the inner wall of the empty tube 1, and the connecting ring 202 is connected to the bidirectional screw rod 2 by arranging a bearing 221 in the connecting ring 202, so as to reduce the friction of the rotation of the bidirectional screw rod 2 The friction resistance makes the rotation effortless and smooth. The bearing 2021 is sleeved on the inner ring wall of the connecting ring 202, and the inner ring wall of the connecting ring 202 is provided with an elastic retaining ring 2022. The elastic retaining ring 2022 is arranged on both sides of the bearing 2021 and abuts against the end face of the bearing 2021, so as to constrain the position of the bearing 2021 to prevent the bearing 2021 from moving and ensure the normal rotation of the bidirectional screw rod 2. At the same time, one end face of the connecting ring 202 abuts against the outer wall of the mounting plug 102 to limit the position of the connecting ring 202, thereby limiting the bidirectional screw rod 2 from moving freely along the empty tube 1, and ensuring the stability and reliability of the use of the bidirectional screw rod 2.

[0038] Please see attached Figure 2 , Attachment Figure 3 , Attachment Figure 7 , both ends of the bidirectional screw rod 2 pass through the mounting plug 102 and are rotatably installed with the mounting plug 102. A through hole 1021 is coaxially arranged on the mounting plug 102. The through hole 1021 is convenient for both ends of the bidirectional screw rod 2 to pass through the empty tube 1, and provides space for the rotational installation of the bidirectional screw rod 2 and the mounting plug 102. Both ends of the bidirectional screw rod 2 passing through the empty tube 1 are detachably installed with a crank 4. A docking groove 401 is arranged at one end of the crank 4. The docking groove 401 is plugged with the bidirectional screw rod 2 by means of a docking piece. The docking piece includes a spline 203 arranged at both ends of the bidirectional screw rod 2 and a keyway 402 arranged in the docking groove 401. When the crank 4 is plugged with the bidirectional screw rod 2, the spline 203 is plugged with the keyway 402, so that after the crank 4 is rotated, the bidirectional screw rod 2 is driven to rotate, avoiding the crank 4 from spinning in vain, and the use is smooth and stable. The crank 4 is assembled by plugging and unplugging, which is easy to operate, convenient to remove, and flexible to use.

[0039] Please see attached Figure 1 , Attachment Figure 4 , Attachment Figure 5, a slideway 101 is arranged on the side wall of the empty tube 1 along the length direction, and the slideway 101 is connected to the empty tube 1, and both ends of the bidirectional screw rod 2 in the empty tube 1 are threadedly connected with a screw nut 201, and pistons 103 are arranged at both ends in the empty tube 1, and the piston 103 is coaxially assembled with the screw nut 201, and a slider 104 is arranged on the outer wall of the piston 103, and the slider 104 is slidably installed with the slideway 101, and the movement state of the piston 103 is restricted to prevent it from rotating synchronously with the screw rod, and ensure its smooth movement along the empty tube 1, and the slider 104 is inserted into the empty tube 1 through the slideway 101, and is positioned and plugged with the slot 1031 opened on the wall of the piston 103, so that the slider 104 is convenient for the threaded hole on the piston 103 to be docked and overlapped, so that it can be tightened and fixed by the bolt 1032, and the slider 104 also needs to be installed with a claw 3, so the installation of the bolt 1032 needs to be flush with the upper end surface of the slider 104, so as not to interfere with the installation of the claw 3, and the operation is simple;

[0040] Please refer to the attached Figure 2 The clamping claw 3 is fixedly installed with the slider 104 by means of a bolt 1032. The top of the slider 104 protrudes from the outer wall of the empty tube 1, so that the clamping claw 3 is located on the side of the empty tube 1, but does not contact with the wall of the empty tube 1, avoiding friction contact, so that the piston 103 drives the clamping claw 3 to move smoothly. By adjusting the interval of the clamping claw 3, the furniture is clamped and fixed, and the operation is simple. When the clamping claw 3 is used to clamp the furniture, the outer surface of the clamping claw 3 is covered with a rubber sleeve 301. The rubber sleeve 301 increases the friction force of contact with the clamp to prevent it from loosening and falling off, and avoids damage to the surface of the furniture, which is safe to use.

[0041] The working principle of the furniture assembly fixture is: after the crank 4 is plugged into the bidirectional screw rod 2, the bidirectional screw rod 2 is rotated by the crank 4, and the key groove 402 in the docking groove 401 of the crank 4 is plugged into the spline 203 on the bidirectional screw rod 2, so that the bidirectional screw rod 2 rotates smoothly and avoids idling. The rotating bidirectional screw rod 2 is meshed with the nut 201 to drive the pistons 103 on both sides to move relatively along the empty tube 1. When clamping furniture, the bidirectional screw rod 2 is first rotated to make the piston 103 drive the claws 3 to move relatively, so as to increase the interval between the claws 3 and facilitate the placement of the claws 3 on both sides of the furniture to be clamped. Then, the bidirectional screw rod 2 is rotated in the opposite direction to make the piston 103 drive the claws 3 to move relatively and close together. As the claws 3 abut against the surface of the furniture, the furniture is clamped. As the bidirectional screw rod 2 continues to rotate, the clamping force of the claws 3 is increased. The rubber sleeve 301 on the surface of the claws 3 avoids damage to the furniture. After the operation is completed, the meshing of the bidirectional screw rod 2 and the nut 201 is self-locking to prevent the claws 3 from loosening. The clamping is firm and reliable, and the operation is labor-saving and simple.

[0042] The bidirectional screw rod 2 is coaxially supported in the empty tube 1 by the support rings on both sides, and the support ring abuts against the mounting plug 102, clamping the bidirectional screw rod 2 in the empty tube 1 to prevent the bidirectional screw rod 2 from moving, so that the clamping claw 3 fixes the furniture firmly and stably. At the same time, the bearing 2021 in the support ring makes the rotation of the bidirectional screw rod 2 effortless and smooth, ensuring the smoothness and reliability of the operation.

Claims

1. A fixture for furniture assembly, characterized in that: The invention comprises an empty tube (1), wherein a slideway (101) is arranged on the outer wall of the empty tube (1) along the length direction, the slideway (101) is connected to the empty tube (1), and mounting plugs (102) are detachably mounted on both ends of the empty tube (1), and a bidirectional screw rod (2) is coaxially arranged in the empty tube (1); both ends of the bidirectional screw rod (2) are threadedly connected with a screw nut (201), and both ends of the bidirectional screw rod (2) penetrate the mounting plug (102) and are rotatably mounted with the mounting plug (102); pistons (103) are slidably mounted on both ends of the empty tube (1), the pistons (103) are coaxially assembled with the screw nut (201), and a slider (104) is detachably mounted on the outer wall of the piston (103), the sliders (104) are slidably mounted with the slideway (101) and protrude from the outer wall of the empty tube (1); and claws (3) are detachably mounted on the outer wall of the slider (104).

2. The fixture for furniture assembly according to claim 1, characterized in that: The mounting plugs (102) are all threadedly connected to the empty pipe (1), and a through hole (1021) is coaxially arranged on the mounting plugs (102). Both ends of the bidirectional screw rod (2) are rotatably mounted on the through hole (1021) and penetrate the through hole (1021). The bidirectional screw rod (2) is coaxially rotatably mounted on the empty pipe (1) with the aid of a positioning piece.

3. The fixture for furniture assembly according to claim 2, characterized in that: The positioning member comprises a connecting ring (202) rotatably mounted on both ends of the bidirectional screw rod (2); the connecting ring (202) is plugged into the inner wall of the empty tube (1), and one end surface of the connecting ring (202) abuts against the outer wall of the mounting plug (102).

4. The fixture for furniture assembly according to claim 3, characterized in that: The inner ring wall of the connecting ring (202) is sleeved with a bearing (2021), and the bearing (2021) is sleeved with the bidirectional screw rod (2); the inner ring wall of the connecting ring (202) is provided with an elastic retaining ring (2022), and the elastic retaining rings (2022) are arranged on both sides of the bearing (2021) and are both in contact with the end surface of the bearing (2021).

5. The fixture for furniture assembly according to claim 1, characterized in that: The outer wall of the piston (103) is provided with a slot (1031), the slider (104) is plugged into the slot (1031), and is fixed to the piston (103) by means of a bolt (1032), and the bolt (1032) is flush with the upper end surface of the slider (104).

6. The fixture for furniture assembly according to claim 1, characterized in that: The two ends of the bidirectional screw rod (2) are detachably mounted with a crank handle (4), one end of the crank handle (4) is provided with a docking groove (401), and the docking groove (401) is plugged with the bidirectional screw rod (2) by means of a docking piece.

7. The fixture for furniture assembly according to claim 6, characterized in that: The docking member comprises splines (203) arranged at both ends of the bidirectional screw rod (2), and a keyway (402) is arranged in the docking groove (401), and the splines (203) are plugged into the keyway (402).

8. The fixture for furniture assembly according to claim 1, characterized in that: The clamping claw (3) is fixedly mounted on the sliding block (104) by means of bolts (1032).

9. The fixture for furniture assembly according to claim 8, characterized in that: The outer surface of the clamping claw (3) is covered with a rubber sleeve (301).

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