Traction tongs

Abstract

The utility model relates to manual hardware tool technical field especially relates to a kind of traction forceps. Including fixed jaw, movable jaw, fixed handle, movable handle, fixed jaw is connected with fixed handle by welding, movable jaw is connected with fixed handle by rivet A, movable jaw is connected with movable handle by rivet B, the rear end of fixed handle is equipped with adjusting screw, the middle part between fixed handle and movable jaw is equipped with tension spring, the middle part of movable handle is connected with opening handle by rivet D, the rear end of adjusting screw is connected with hexagon nut by thread, hexagon nut rear side adjusting screw is equipped with the lifting ring of free rotation on, hexagon nut rear side adjusting screw is connected with locknut by thread on.The lifting ring can be 360° free rotation, so that forceps base body can be 360° rotation itself, even if being pulled object occurs wobble rotation, traction rope also cannot occur entanglement, avoid to exert rotating torsion to rope and forceps, guarantee the stability and effectiveness of traction.

Description

Technical Field

[0001] This utility model relates to the field of manual hardware tools, and in particular to a traction pliers. Background Technology

[0002] Traditional bolt clamps, such as the patent application CN209599144U entitled "A Bolt Clamp with Ratchet Wrench Function", have a structure consisting of a fixed jaw, a fixed handle, a movable jaw, a movable handle, a support plate, an opening handle, an adjusting bolt, a tension spring, and rivets. The fixed jaw and the fixed handle are welded together. The movable jaw is connected to the fixed handle and the movable handle by rivets. The adjusting bolt is located at the tail of the fixed handle. One end of the support plate is connected to the movable handle by a rivet, and the other end contacts the head of the adjusting bolt. The opening handle is connected to the movable handle by a rivet. The two ends of the tension spring are respectively hooked to the movable jaw and the fixed handle. When the movable handle is pressed, the movable handle uses one end of the support plate as a fulcrum to drive the movable jaw to move. The movable jaw begins to rotate and cooperate with the fixed jaw to clamp the workpiece. When using this type of traditional bolt clamp as a traction bolt, the adjusting bolt is usually replaced with a regular eye bolt. In use, the jaws of the bolt clamp hold the object being pulled, and the eye bolt is connected to the traction rope. Because the angle of the regular eye bolt is fixed, if the object being pulled shakes or rotates, the traction rope will become entangled. The rope and the bolt clamp will be subjected to greater rotational torque, which can easily cause the object to fall off or the traction to fail. Currently, there is no good way to solve the above problems.

[0003] In conclusion, solving the problem of rope entanglement in traction clamps has become a pressing technical challenge for the industry. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a traction clamp that solves the problem of entanglement of the traction rope caused by the rotation and shaking of the traction object during the traction process.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A traction clamp includes a fixed jaw, a movable jaw, a fixed handle, and a movable handle. The fixed jaw and the fixed handle are welded together. The movable jaw is connected to the fixed handle via rivet A, and the movable jaw is connected to the movable handle via rivet B. An adjusting screw is provided at the rear end of the fixed handle. The front end of the adjusting screw contacts the rear end of a support plate. The front end of the support plate is connected to the movable handle via rivet C. A tension spring is provided between the middle of the fixed handle and the movable jaw. The middle of the movable handle is connected to an opening handle via rivet D. A hexagonal nut is threaded to the rear end of the adjusting screw. A freely rotatable lifting ring is fitted on the adjusting screw behind the hexagonal nut. An anti-loosening nut is threaded to the adjusting screw behind the lifting ring.

[0006] The head of the lifting ring is provided with a through hole, and the through hole is fitted with the adjusting screw with a clearance.

[0007] The lifting eye is clearance-fitted with the hexagonal nut and the lock nut.

[0008] The anti-loosening nut is located inside the ring hole of the lifting eye and is threadedly connected to the tail end of the adjusting screw.

[0009] The present invention adopts the above solution and has the following beneficial effects: A hexagonal nut and a lock nut are threaded onto the rear end of the adjusting screw. A freely rotatable lifting ring is fitted between the hexagonal nut and the lock nut. In use, the jaws of the bolt clamps hold the object being pulled, while the lifting ring is connected to the traction rope. This allows the bolt clamps to quickly clamp the object being pulled and drag it. Because the lifting ring can rotate 360°, the bolt clamp base can also rotate 360°. Even if the object being pulled shakes or rotates, the traction rope will not become tangled, avoiding applying rotational torque to the rope and the bolt clamps, thus ensuring the stability and effectiveness of the traction. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the left side of the lifting ring structure of this utility model.

[0012] In the diagram, 1. Fixed jaws, 2. Movable jaws, 3. Fixed handle, 4. Movable handle, 5. Rivet A, 6. Rivet B, 7. Adjusting screw, 8. Support plate, 9. Rivet C, 10. Tension spring, 11. Rivet D, 12. Opening handle, 13. Hex nut, 14. Lifting eye, 15. Locking nut, 16. Through hole. Detailed Implementation

[0013] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0014] like Figure 1-2As shown, a traction clamp includes a fixed jaw 1, a movable jaw 2, a fixed handle 3, and a movable handle 4. The fixed jaw 1 and the fixed handle 3 are welded together. The movable jaw 2 is connected to the fixed handle 3 by rivet A5 and to the movable handle 4 by rivet B6. The rear end of the fixed handle 3 is provided with an adjusting screw 7, which contacts the rear end of a support plate 8. The front end of the support plate 8 is connected to the movable handle 4 by rivet C9. A tension spring 10 is provided between the middle of the fixed handle 3 and the movable jaw 2. The middle of the movable handle 3 is connected to an opening handle 12 by rivet D11. The rear end of the adjusting screw 7 is threaded with a hexagonal nut 13. A freely rotatable lifting ring 14 is fitted on the adjusting screw 7 behind the hexagonal nut 13. An anti-loosening nut 15 is threaded on the adjusting screw 7 behind the lifting ring 14.

[0015] The head of the lifting ring 14 is provided with a through hole 16, and the through hole 16 and the adjusting screw 7 are fitted with a clearance to avoid interference between the lifting ring 14 and the adjusting screw 7 when the lifting ring 14 rotates.

[0016] The lifting ring 14 is fitted with a clearance fit between the hexagonal nut 13 and the anti-loosening nut 15 to prevent interference between the lifting ring 14 and the hexagonal nut 13 and the anti-loosening nut 15 when the lifting ring 14 rotates. The hexagonal nut 13 and the anti-loosening nut 15 are used to limit the movement of the lifting ring 14.

[0017] The anti-loosening nut 15 is located in the ring hole of the lifting eye 14 and is threadedly connected to the tail end of the adjusting screw 7, which facilitates the installation of the anti-loosening nut 15.

[0018] Working principle: During installation, first screw the hexagonal nut 13 into the tail of the adjusting screw 7. Then, machine a through hole 16 into the head of the lifting ring 14, insert the lifting ring 14 into the adjusting screw 7, and then tighten the anti-loosening nut 15 from the tail of the adjusting screw 7 through the ring hole of the lifting ring 14 to prevent the lifting ring 14 from loosening and falling off. Finally, screw the adjusting screw 7 into the fixed handle 3 of the bolt clamp. When in use, grip the fixed handle 3 and the movable handle 4 to apply pressure. The fixed jaw 1 and the movable jaw 2 will engage to clamp the object being pulled. When the tail of the support plate 8, rivet C9, and rivet B6 are in a straight line, the bolt clamp can lock and continuously apply pressure to fix the object being pulled. Then, connect the lifting ring 14 to the traction rope, so that the bolt clamp acts as a clamping and traction mechanism to quickly clamp the object being pulled to drag it. Since the lifting ring 14 can rotate freely 360°, the bolt clamp base can also rotate 360°. Even if the object being pulled shakes and rotates, the traction rope will not become tangled, avoiding applying rotational torque to the rope and the bolt clamp, and ensuring the stability and effectiveness of the traction. After traction is completed, the support plate 8 is lifted by opening the handle 12, so that the tail of the support plate 8, rivet C9, and rivet B6 are no longer in the same straight line. Under the reset action of the tension spring 10, the clamps are unlocked and the towed object is released.

[0019] The above-described specific embodiments should not be construed as limiting the scope of protection of this utility model. Any alternative improvements or modifications made to the embodiments of this utility model by those skilled in the art shall fall within the scope of protection of this utility model.

[0020] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A traction clamp, comprising a fixed jaw, a movable jaw, a fixed handle, and a movable handle, wherein the fixed jaw and the fixed handle are welded together, the movable jaw is connected to the fixed handle via rivet A, the movable jaw is connected to the movable handle via rivet B, an adjusting screw is provided at the rear end of the fixed handle, the front end of the adjusting screw contacts the rear end of a support plate, the front end of the support plate is connected to the movable handle via rivet C, a tension spring is provided between the middle of the fixed handle and the movable jaw, and the middle of the movable handle is connected to an opening handle via rivet D, characterized in that: The rear end of the adjusting screw is threaded with a hexagonal nut, and a freely rotatable lifting ring is fitted on the adjusting screw behind the hexagonal nut. An anti-loosening nut is threaded on the adjusting screw behind the lifting ring.

2. The traction clamp according to claim 1, characterized in that: The head of the lifting ring is provided with a through hole, and the through hole is fitted with the adjusting screw with a clearance.

3. The traction clamp according to claim 1, characterized in that: The lifting eye is clearance-fitted with the hexagonal nut and the lock nut.

4. The traction clamp according to claim 1, characterized in that: The anti-loosening nut is located inside the ring hole of the lifting eye and is threadedly connected to the tail end of the adjusting screw.

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