A carpentry auxiliary function large force tongs

Abstract

The utility model relates to manual hardware tool technical field, especially to a kind of wood auxiliary function can be realized big force pliers. 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, adjusting screw is contacted with the rear end of support plate, support plate front end is connected with movable handle by rivet C, 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 inside of fixed jaw and movable jaw is equipped with tooth respectively, the head of tooth is equipped with concave slot, the front end of concave slot forms sharp end portion, and multiple teeth tooth shape is equipped on sharp end portion along width direction. Multiple teeth tooth shape can be embedded in wood surface interior to improve clamping force, and can prevent skidding, to meet the fastening fixed demand of wood splicing work.

Description

Technical Field

[0001] This utility model relates to the field of manual hardware tools, and in particular to a heavy-duty pliers that can realize woodworking auxiliary functions. 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. This type of traditional bolt clamp has toothed flat surfaces at the front of both the movable and fixed jaws. It is only suitable for clamping workpieces with a large contact area with the movable and fixed jaws. However, in the woodworking field, when joining two pieces of wood at a 90-degree angle, the front surface of the existing bolt clamp is difficult to apply force to clamp the two pieces of wood. This often results in insufficient clamping force and slippage, requiring workers to use their hands to hold and support the wood. Currently, there is no good solution to this problem.

[0003] In conclusion, how to achieve the clamping force of bolt cutters when assembling corner joints in the woodworking field has become a technical problem that urgently needs to be solved in the industry. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a heavy-duty pliers that can realize woodworking auxiliary functions, solving the problems of insufficient clamping force and easy slippage when the previous heavy-duty pliers were used to join two pieces of wood at corners in the woodworking field.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A pair of heavy-duty pliers capable of providing woodworking auxiliary functions 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, and 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 the opening handle via rivet D. The inner sides of the fixed jaw and the movable jaw are respectively provided with teeth. The head of the teeth is provided with a concave groove, and the front end of the concave groove forms a pointed part. The pointed part has multiple teeth along the width direction.

[0006] The tip of the fixed jaw has the same size as the tip of the movable jaw.

[0007] The multi-tooth pattern at the tip of the fixed jaws is symmetrically arranged above and below the multi-tooth pattern at the tip of the movable jaws.

[0008] The multi-tooth profile includes a three-tooth profile, a four-tooth profile, or a five-tooth profile.

[0009] The present invention adopts the above solution and has the following beneficial effects: By creating concave grooves in the teeth of the fixed and movable jaws, the front ends of the fixed and movable jaws form pointed sections. Multiple teeth are set along the width of these pointed sections. When joining two pieces of wood at an angle, the two pieces are first joined at a 90-degree angle. When the multi-toothed sections at the tips of the fixed and movable jaws apply force to the flat surfaces of the wood at the 90-degree angle, the teeth embed into the wood surface to increase clamping force and prevent slippage. This meets the fastening and fixing needs of woodworking splicing work and expands the application range of the bolt clamps. Attached Figure Description

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

[0011] Figure 2 This is an exploded structural diagram of the movable jaw and the fixed jaw 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. Teeth, 14. Concave groove, 15. Tip, 16. Multi-tooth profile. 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 1-2 As shown, a pair of heavy-duty pliers capable of providing woodworking auxiliary functions 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 inner sides of the fixed jaw 1 and the movable jaw 2 are respectively provided with teeth 13. The head of the teeth 13 is provided with a concave groove 14, and the front end of the concave groove 14 forms a tip 15. The tip 15 is provided with multi-toothed teeth 16 along the width direction.

[0015] The tip 15 of the fixed jaw 1 is the same size as the tip 15 of the movable jaw 2.

[0016] The multi-tooth profile 16 of the tip 15 of the fixed jaw 1 and the multi-tooth profile 16 of the tip 15 of the movable jaw 2 are arranged symmetrically, which facilitates their cooperation to clamp the workpiece.

[0017] The multi-tooth profile 16 includes a three-tooth profile, a four-tooth profile, or a five-tooth profile, which can be arbitrarily selected according to the width of the fixed jaw 1 and the movable jaw 2.

[0018] Working principle: When in use, it can be used as a regular bolt clamp to clamp workpieces. In woodworking, when joining two pieces of wood at an angle, first, join the two pieces of wood at a 90-degree angle. Then, press the tips 15 of the fixed jaw 1 and the movable jaw 2 onto the flat surfaces of the two pieces of wood at the 90-degree angle. Grip the fixed handle 1 and the movable handle 2 to apply pressure. The multi-toothed shape 16 of the tips 15 of the fixed jaw 1 and the movable jaw 2 can embed into the wood surface to increase the clamping force and prevent slippage. When the tail of the support plate 8, rivet C9, and rivet B6 are in a straight line, the bolt clamp can be locked to continuously apply pressure, freeing the worker's hands to perform other tasks related to joining the wood, thus meeting the fastening and fixing needs of woodworking splicing. After joining the wood, open the handle 12 to lift the support plate 8, so that the tail of the support plate 8, rivet C9, and rivet B6 are no longer in a straight line. Under the reset action of the tension spring 10, the bolt clamp is unlocked, releasing the wood.

[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 pair of heavy-duty pliers capable of providing woodworking auxiliary functions, comprising 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, contacting 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 the opening handle via rivet D. The pliers are characterized by: The inner sides of the fixed jaw and the movable jaw are respectively provided with teeth, the head of the teeth is provided with a concave groove, the front end of the concave groove forms a tip, and the tip is provided with multiple teeth along the width direction.

2. The heavy-duty pliers capable of providing woodworking auxiliary functions according to claim 1, characterized in that: The tip of the fixed jaw has the same size as the tip of the movable jaw.

3. The heavy-duty pliers capable of providing woodworking auxiliary functions according to claim 1, characterized in that: The multi-tooth pattern at the tip of the fixed jaws is symmetrically arranged above and below the multi-tooth pattern at the tip of the movable jaws.

4. The heavy-duty pliers capable of providing woodworking auxiliary functions according to claim 1, characterized in that: The multi-tooth profile includes a three-tooth profile, a four-tooth profile, or a five-tooth profile.

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