Head rotating method of shearing tool

Abstract

The invention relates to the technical field of manual hardware tools, in particular to a head rotating method of a shearing tool. Comprising an upper blade, an upper plier body, a lower blade and a lower plier body, the upper blade is connected with the upper plier body in a tooth-shaped meshing mode, the lower blade is connected with the lower plier body in a tooth-shaped meshing mode, an upper connecting plate, the upper blade, the lower blade and a lower connecting plate are connected through a pin A, and the upper connecting plate, the upper plier body, the lower plier body and the lower connecting plate are connected through a pin B. Before a workpiece is sheared, the upper plier body and the lower plier body are sheared. The upper blade and the lower blade are rotated to required angles, then the upper plier body and the lower plier body are opened, and the upper blade and the lower blade are driven to act through meshing of the tooth profiles, so that a workpiece is cut off, interference to the hand is avoided when the tool is used in the space-limited environment, the tool can be used in some space-limited environments, interference to the hand is avoided, and the working efficiency is improved. Operation is simple, time and labor are saved, and the application range is wider.

Description

Technical field:

[0001] The invention relates to the technical field of manual hardware tools, and in particular to a head rotation method of a shearing tool. Background technology:

[0002] At present, there are shearing tools on the market, such as aviation shears, which are used to shear workpieces such as metal sheets or metal meshes. The structure of the patent application with publication number CN213379571U discloses a self-locking nut double-sided fixing and firming device for aviation shears. In the aviation shears with this structure, the blade and the pliers body are an integrated structure. When used, the direction of the blade and the pliers body is consistent, and the direction of the blade cannot be adjusted separately. This will result in interference between the hands and the ground when the worker performs the shearing operation on a metal sheet placed flat on the ground. The worker can only lift the metal sheet to a certain height before inserting the metal sheet between the blades for shearing. The operation is cumbersome, time-consuming and labor-intensive, and very inconvenient to use. There is currently no good way to solve the above problems.

[0003] In summary, how to avoid interference when using shearing tools in a space-constrained environment has become a technical problem that needs to be solved urgently in the industry. Summary of the invention:

[0004] In order to make up for the deficiencies of the prior art, the present invention provides a head rotation method for a shearing tool, which solves the problem that the previous shearing tools cause interference and inconvenience in operation when used in a space-constrained environment.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A method for rotating the head of a shearing tool comprises an upper blade, an upper pliers body, a lower blade and a lower pliers body, wherein the upper blade is connected to the upper pliers body through tooth meshing, and the lower blade is connected to the lower pliers body through tooth meshing, an upper connecting plate, an upper blade, a lower blade and a lower connecting plate are connected through a pin A, and an upper connecting plate, an upper pliers body, a lower pliers body and a lower connecting plate are connected through a pin B. Before shearing a workpiece, the upper blade and the lower blade are rotated to a desired angle, and then the upper pliers body and the lower pliers body are opened, and the upper blade and the lower blade are driven to move through the meshing between the teeth, thereby shearing the workpiece, and avoiding interference with hands when used in a space-constrained environment.

[0007] A limiting groove is arranged at the tail end of the lower connecting plate, and a pin C matching with the limiting groove is installed on the lower clamp body.

[0008] The pin C is movably inserted in the lower clamp body and the limiting groove, one end of the pin C is a pin head, and the other end of the pin C is limited by a retaining ring, and a thin rod is provided in the middle of the pin C.

[0009] A spring is sleeved on the outer side of the pin C between the pin head and the lower caliper body.

[0010] The limiting groove is arranged in an arc shape as a whole, the outer diameter of the thin rod is smaller than the width of the limiting groove, and a plurality of circular grooves matching the outer diameter of the pin C are arranged in the limiting groove.

[0011] When in use, first press the pin head, the spring is compressed, the thin rod will move into the limit groove, rotate the upper blade and the lower blade to the required angle, then release the pin head, and the spring will reset the pin C under its own elastic force, and the pin C will move into the limit groove and fit into the corresponding circular groove. At this time, the angles of the upper blade and the lower blade are fixed, and then open the upper and lower pliers bodies, and drive the upper and lower blades to move through the meshing of the teeth to achieve the function of shearing the workpiece.

[0012] The tails of the upper blade and the lower blade, and the heads of the upper pliers body and the lower pliers body are respectively provided with teeth.

[0013] The tooth profile outer diameter of the upper pliers head is smaller than the tooth profile outer diameter of the upper blade tail, and the tooth profile outer diameter of the lower pliers head is smaller than the tooth profile outer diameter of the lower blade tail.

[0014] The upper blade is connected to the lower blade by a pin A, the upper caliper body is connected to the lower caliper body by a pin B, one end of the pin A and the pin B is connected to an upper connecting plate, and the other end of the pin A and the pin B is connected to a lower connecting plate.

[0015] The present invention adopts the above scheme and has the following beneficial effects:

[0016] The present invention connects the upper blade with the upper pliers body through tooth meshing, connects the lower blade with the lower pliers body through tooth meshing, connects the upper connecting plate, the upper blade, the lower blade and the lower connecting plate through a pin A, connects the upper connecting plate, the upper pliers body, the lower pliers body and the lower connecting plate through a pin B, and the upper connecting plate and the lower connecting plate restrict the upper blade, the lower blade, the upper pliers body and the lower pliers body inside, and coupled with the cooperation of the pin C and the limiting groove, before shearing the workpiece, the upper blade and the lower blade can be rotated to a desired angle, and then the upper pliers body and the lower pliers body can be opened, and the upper blade and the lower blade can be driven to move through the meshing between the teeth, so as to shear the workpiece. The present invention can be used in some environments with limited space, and interference with hands can be avoided. The operation is simple, time-saving and labor-saving, and the application range is wider. Description of the drawings:

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0018] Figure 2 It is a side structural schematic diagram of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the upper blade and the upper pliers body of the present invention.

[0020] Figure 4 It is a schematic structural diagram of the lower blade and the lower pliers body of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the upper connecting plate of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the lower connecting plate of the present invention.

[0023] Figure 7 It is a schematic diagram of the enlarged structure of the pin C of the present invention.

[0024] In the figure, 1, upper blade, 2, lower blade, 3, upper pliers body, 4, lower pliers body, 5, pin A, 6, pin B, 7, tooth shape, 8, upper connecting plate, 9, lower connecting plate, 10, limit groove, 11, pin C, 12, pin head, 13, retaining ring, 14, thin rod, 15, spring, 16, circular groove. Specific implementation method:

[0025] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0026] like Figure 1-7 As shown, a method for rotating the head of a shearing tool includes an upper blade 1, an upper pliers body 3, a lower blade 2 and a lower pliers body 4, the upper blade 1 and the upper pliers body 3 are meshed and connected by a tooth shape 7, the lower blade 2 and the lower pliers body 4 are meshed and connected by a tooth shape 7, an upper connecting plate 8, an upper blade 1, a lower blade 2 and a lower connecting plate 9 are connected by a pin A5, and an upper connecting plate 8, an upper pliers body 3, a lower pliers body 4 and a lower connecting plate 9 are connected by a pin B6, the upper connecting plate 8 and the lower connecting plate 9 restrict the upper blade 1, the lower blade 2, the upper pliers body 3 and the lower pliers body 4 inside, before shearing the workpiece, the upper blade 1 and the lower blade 2 are rotated to the desired angle, and then the upper pliers body 3 and the lower pliers body 4 are opened, and the upper blade 1 and the lower blade 2 are driven to move by the meshing between the teeth 7, thereby shearing the workpiece, and avoiding interference with the hands when used in a space-constrained environment.

[0027] A limiting groove 10 is provided at the rear end of the lower connecting plate 9 , and a pin C11 matching with the limiting groove 10 is installed on the lower clamp body 4 .

[0028] The pin C11 is movably inserted in the lower clamp body 4 and the limiting groove 10, one end of the pin C11 is a pin head 12, the other end of the pin C11 is limited by a retaining ring 13, and a thin rod 14 is provided in the middle of the pin C11.

[0029] A spring 15 is sleeved outside the pin C11 between the pin head 12 and the lower caliper body 4. When the pin head 12 is pressed, the spring 15 is compressed. When the pin head 12 is released, the spring 15 can reset the pin C11 under the action of its own elastic force.

[0030] The limiting groove 10 is arranged in an arc shape as a whole, and the outer diameter of the thin rod 14 is smaller than the width of the limiting groove 10. A plurality of circular grooves 16 matching the outer diameter of the pin C11 are arranged in the limiting groove 10. When the pin head 12 is pressed, the thin rod 14 will move into the limiting groove 10. Since the outer diameter of the thin rod 14 is smaller than the width of the limiting groove 10, no restriction will be formed. At this time, the upper blade 1 and the lower blade 2 can be rotated to the required angle. After the pin head 12 is released, the spring 15 can reset the pin C11 under its own elastic force. The pin C11 moves into the limiting groove 10 and is clamped with the corresponding circular groove 16. At this time, the angles of the upper blade 1 and the lower blade 2 are fixed. Then the upper pliers body 3 and the lower pliers body 4 are opened, and the upper blade 1 and the lower blade 2 are driven to move through the meshing between the teeth 7 to achieve the function of shearing the workpiece.

[0031] The tails of the upper blade 1 and the lower blade 2 and the heads of the upper pliers body 3 and the lower pliers body 4 are respectively provided with teeth 7 .

[0032] The outer diameter of the tooth profile at the head of the upper pliers body 3 is smaller than the outer diameter of the tooth profile at the tail of the upper blade 1, and the outer diameter of the tooth profile at the head of the lower pliers body 4 is smaller than the outer diameter of the tooth profile at the tail of the lower blade 2, which can achieve a labor-saving effect.

[0033] The upper blade 1 and the lower blade 2 are connected by a pin A5, and the upper blade 1 and the lower blade 2 can rotate around the pin A5. The upper pliers body 3 and the lower pliers body 4 are connected by a pin B6, and the upper pliers body 3 and the lower pliers body 4 can rotate around the pin B6. One end of the pin A5 and the pin B6 is connected with an upper connecting plate 8, and the other end of the pin A5 and the pin B6 is connected with a lower connecting plate 9.

[0034] Working principle:

[0035] When in use, the staff first presses the pin head 12, the spring 15 is compressed, and the thin rod 14 moves into the limiting groove 10. Since the outer diameter of the thin rod 14 is smaller than the width of the limiting groove 10, no restriction is formed. At this time, the upper blade 1 and the lower blade 2 can be rotated to the required angle, and then the pin head 12 is released. The spring 15 can reset the pin C11 under the action of its own elastic force. The pin C11 moves into the limiting groove 10 and is clamped with the corresponding circular groove 16. At this time, the angles of the upper blade 1 and the lower blade 2 are fixed, and then the upper pliers body 3 and the lower pliers body 4 are opened. The upper blade 1 and the lower blade 2 are driven to move through the meshing between the teeth 7 to realize the function of cutting the workpiece. It can be used in some space-constrained environments to avoid interference with the hands. It is easy to operate, saves time and effort, and has a wider range of applications.

[0036] The above specific implementation manner cannot be used as a limitation on the protection scope of the present invention. For those skilled in the art, any substitution, improvement or change made to the implementation manner of the present invention falls within the protection scope of the present invention.

[0037] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A method for rotating the head of a shearing tool, characterized in that: It includes an upper blade, an upper pliers body, a lower blade and a lower pliers body. The upper blade is connected to the upper pliers body through tooth meshing, and the lower blade is connected to the lower pliers body through tooth meshing. The upper connecting plate, the upper blade, the lower blade and the lower connecting plate are connected through pin A. The upper connecting plate, the upper pliers body, the lower pliers body and the lower connecting plate are connected through pin B. Before shearing the workpiece, the upper blade and the lower blade are rotated to the required angle, and then the upper pliers body and the lower pliers body are opened. The engagement between the teeth drives the upper blade and the lower blade to move, thereby cutting the workpiece, avoiding interference with the hands when used in a space-constrained environment.

2. A method for rotating the head of a shearing tool according to claim 1, characterized in that: A limiting groove is arranged at the tail end of the lower connecting plate, and a pin C matching with the limiting groove is installed on the lower clamp body.

3. A method for rotating the head of a shearing tool according to claim 2, characterized in that: The pin C is movably inserted in the lower clamp body and the limiting groove, one end of the pin C is a pin head, and the other end of the pin C is limited by a retaining ring, and a thin rod is provided in the middle of the pin C.

4. A method for rotating the head of a shearing tool according to claim 3, characterized in that: A spring is sleeved on the outer side of the pin C between the pin head and the lower caliper body.

5. A method for rotating the head of a shearing tool according to claim 4, characterized in that: The limiting groove is arranged in an arc shape as a whole, the outer diameter of the thin rod is smaller than the width of the limiting groove, and a plurality of circular grooves matching the outer diameter of the pin C are arranged in the limiting groove.

6. A method for rotating the head of a shearing tool according to claim 5, characterized in that: When in use, first press the pin head, the spring is compressed, the thin rod will move into the limit groove, rotate the upper blade and the lower blade to the required angle, then release the pin head, and the spring will reset the pin C under its own elastic force, and the pin C will move into the limit groove and fit into the corresponding circular groove. At this time, the angles of the upper blade and the lower blade are fixed, and then open the upper and lower pliers bodies, and drive the upper and lower blades to move through the meshing of the teeth to achieve the function of shearing the workpiece.

7. A method for rotating the head of a shearing tool according to claim 1, characterized in that: The tails of the upper blade and the lower blade, and the heads of the upper pliers body and the lower pliers body are respectively provided with teeth.

8. A method for rotating the head of a shearing tool according to claim 7, characterized in that: The tooth profile outer diameter of the upper pliers head is smaller than the tooth profile outer diameter of the upper blade tail, and the tooth profile outer diameter of the lower pliers head is smaller than the tooth profile outer diameter of the lower blade tail.

9. A method for rotating the head of a shearing tool according to claim 1, characterized in that: The upper blade is connected to the lower blade by a pin A, the upper caliper body is connected to the lower caliper body by a pin B, one end of the pin A and the pin B is connected to an upper connecting plate, and the other end of the pin A and the pin B is connected to a lower connecting plate.

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