Labor-saving scissors with adjustable torque and anti-slip teeth

Abstract

The utility model discloses a labor -saving scissors with adjustable torque and antiskid teeth, and relates to the field of scissors, including first shear body and second shear body, the inside installation of adjusting groove has torque adjusting mechanism, the inner wall one side of shear handle is provided with a plurality of groups of lugs, the shear blade of first shear body and second shear body all is provided with antiskid tooth. The utility model discloses the shear body through setting torque adjusting mechanism, so that the user can according to the thickness and soft and hard degree of the article that is cut, personnel can adjust the installation position of articulated axle, adjusting block and adjusting nut according to the cutting demand, and then adjust the length of force arm of shear body, realize the flexible regulation of torque, and the two groups of shear handle holding parts on the shear body all are provided with the lug of rubber material, increase the friction between finger and shear handle, prevent skidding when holding, and arc antiskid tooth is arranged on the cutting surface of the shear blade of the front end of first shear body and second shear body, can play good antiskid fixed role to the article that is cut.

Description

Technical Field

[0001] This utility model relates to the field of scissors, specifically a torque-adjustable, anti-slip toothed, labor-saving scissors. Background Technology

[0002] Scissors are a common cutting tool widely used in production and daily life. They can cut various materials such as paper, cloth, rope, branches, plastic and thin metal sheets, playing an indispensable role in many scenarios such as household life, gardening, handicrafts and light industrial production.

[0003] The core structure of existing scissors is relatively uniform, usually consisting of two hinged scissor bodies. Each scissor body includes a handle for gripping and applying force and a blade for cutting. By driving the handle to rotate relative to the hinge point with the fingers, the blade closes, thus completing the cutting action on the object.

[0004] However, traditional scissors typically have a fixed hinge design, which prevents the lever arm length from being flexibly adjusted according to cutting needs. When cutting thicker or harder items, insufficient torque requires the user to apply greater force to complete the operation, which is not only strenuous but also prone to finger soreness and fatigue after prolonged use. When cutting thinner or softer items, the fixed torque makes it difficult to accurately control the cutting force, easily leading to over-cutting or positional deviation. In addition, the grip surface of traditional scissors is mostly smooth, which can easily cause slippage during hand cutting, thus affecting the stability and accuracy of operation. Summary of the Invention

[0005] Therefore, the purpose of this utility model is to provide a torque-adjustable, anti-slip toothed scissor to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a torque-adjustable, anti-slip toothed, labor-saving scissors, comprising a first scissor body and a second scissor body, wherein the second scissor body is movably connected to one side of the first scissor body, and an adjustment groove is provided at one end of both the first and second scissor bodies. A torque adjustment mechanism is installed inside the adjustment groove, and the torque adjustment mechanism includes a hinge shaft. An adjustment block is movably sleeved on the outer wall of the hinge shaft, and an adjustment nut is installed at one end of the hinge shaft. A scissor handle is fixedly installed at one end of both the first and second scissor bodies, and multiple sets of protrusions are provided on one side of the inner wall of the scissor handle. Anti-slip teeth are provided on the cutting edges of both the first and second scissor bodies.

[0007] By adopting the above technical solution, the problems of the hinge point of the traditional scissors' fixed design being unable to be flexibly adjusted according to the cutting needs and the handle and blade being prone to slippage during use are solved. The scissors body is equipped with a torque adjustment mechanism, which allows users to adjust the installation position of the hinge shaft, adjusting block and adjusting nut according to the thickness and hardness of the item being cut, thereby adjusting the lever arm length of the scissors body and achieving flexible torque adjustment. In addition, both sets of handle grips on the scissors body are equipped with rubber protrusions to increase the friction between the fingers and the handles and prevent slippage during gripping. At the same time, arc-shaped anti-slip teeth are set on the cutting surfaces of the front blades of the first and second scissors body, which can play a good anti-slip and fixing role for the item being cut.

[0008] The present invention is further configured such that four sets of first slots and second slots are respectively provided on one side of the adjustment groove on the first shear body and the second shear body.

[0009] Preferably, the first slot and the second slot respectively limit the adjustment block and the adjustment nut to prevent the adjustment block and the adjustment nut from sliding during the shearing operation of the first shear body and the second shear body.

[0010] The present invention is further configured such that the size of the first slot and the second slot matches the size of the adjusting block and the adjusting nut, and the first slot, the second slot, the adjusting block and the adjusting nut are all configured as regular hexagons.

[0011] Preferably, when the adjusting nut is engaged in the second slot, the adjusting nut will not rotate when the operator rotates the head of the hinge shaft, thus facilitating the disassembly and installation of the torque adjustment mechanism.

[0012] The present invention is further configured such that the cross-section of the hinge shaft is T-shaped, and both the hinge shaft and the adjusting nut have anti-slip textures on their walls.

[0013] Preferably, the anti-slip texture on the wall surface of the hinge shaft and adjusting nut can increase the friction between the hinge shaft and adjusting nut and the user's hand.

[0014] The present invention is further configured such that a groove is provided on one side of the first shear body, and the depth of the groove is less than the depth of the first slot, and a scale line is provided on one side of the groove.

[0015] Preferably, when the hinge shaft is hinged and fixed, part of the head of the hinge shaft can be displaced into the groove, thereby reducing the length of the head of the hinge shaft protruding from the first shear body wall.

[0016] The present invention is further configured such that the front cutting edges of the first and second shear bodies are provided with anti-slip teeth, and the tooth surfaces of the anti-slip teeth are smoothly arc-shaped, the tooth height of the anti-slip teeth is set to 1-2mm, and the tooth pitch of the anti-slip teeth is set to 2-3mm.

[0017] Preferably, the arc-shaped anti-slip teeth provided on the cutting surfaces of the front cutting blades of the first and second shear bodies can provide a good anti-slip and fixing effect on the cut items.

[0018] The present invention is further configured such that the height of the protrusion is set to 0.5-1mm, and the spacing between adjacent protrusions is 1-2mm, and the protrusion is made of rubber material.

[0019] Preferably, the rubber protrusions on the grip part of the scissors handle increase the friction between the fingers and the scissors handle, effectively preventing slippage when gripping even if the hands are sweaty or dirty, and improving the stability of operation.

[0020] The present invention is further provided that the end of the scissor handle is provided with a hanging hole, and an anti-pinch post is fixed to the outer wall of one side of the scissor handle.

[0021] Preferably, when the two sets of scissor handles are close to each other to a certain distance, the protruding anti-pinch post on the inner wall of the scissor handle can prevent the two sets of scissor handles from squeezing the person's hand due to the small distance between them, and the scissor body can be hung on the hook through the hanging hole on the scissor handle.

[0022] In summary, the present invention has the following main advantages: This invention solves the problem that the hinge point of traditional fixed scissors cannot be flexibly adjusted according to cutting needs by setting a first scissor body, a second scissor body, a hinge shaft, an adjusting block, and an adjusting nut. The scissor body is equipped with a torque adjustment mechanism, which allows users to adjust the installation position of the hinge shaft, adjusting block, and adjusting nut according to the thickness and hardness of the object being cut, thereby adjusting the lever arm length of the scissors body and achieving flexible torque adjustment.

[0023] This invention solves the problem of slippage between objects and people's hands and scissors during use by setting up a first scissor body, a second scissor body, anti-slip teeth, scissor handles, and protrusions. The two sets of scissor handle grips on the scissor body are equipped with rubber protrusions, which increases the friction between the fingers and the scissor handles. Even if the hands are sweaty or dirty, it can effectively prevent slippage when gripping and improve the stability of operation. In addition, the cutting surfaces of the scissor blades at the front end of the first and second scissor bodies are provided with arc-shaped anti-slip teeth, which can play a good role in preventing slippage and fixing the cut items. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall device of this utility model; Figure 2 This is a schematic diagram of the second shear body of the present invention; Figure 3 This is a schematic diagram of the first shear body of the present invention; Figure 4 This is a schematic diagram of the hinge shaft of this utility model.

[0025] Explanation of reference numerals in the attached figures: 1. First shear body; 101. Adjustment groove; 102. Anti-slip teeth; 103. Groove; 104. First slot; 105. Scale line; 2. Second shear body; 201. Second slot; 3. Shear handle; 301. Protrusion; 302. Hanging hole; 303. Anti-pinch post; 4. Hinge shaft; 401. Adjustment block; 402. Adjustment nut. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The embodiments of this utility model will be described below based on its overall structure.

[0028] Please see Figure 1 — Figure 4The device includes a first shear body 1 and a second shear body 2. The second shear body 2 is movably connected to one side of the first shear body 1. Each of the first and second shear bodies 1 and 2 has an adjustment groove 101 at one end. A torque adjustment mechanism is installed inside the adjustment groove 101. The torque adjustment mechanism includes a hinge shaft 4. An adjustment block 401 is movably fitted onto the outer wall of the hinge shaft 4. An adjustment nut 402 is installed at one end of the hinge shaft 4. A shear handle 3 is fixedly installed at one end of each of the first and second shear bodies 1 and 2. Multiple sets of protrusions 301 are provided on one side of the inner wall of the shear handle 3. Anti-slip teeth 102 are provided on the cutting blades of both the first and second shear bodies 1 and 2. This design solves the problem that the hinge point of traditional fixed shears cannot be flexibly adjusted according to cutting requirements. The handles and blades of the scissors are prone to slippage during use. The scissors body is equipped with a torque adjustment mechanism, which allows users to adjust the installation positions of the hinge shaft 4, adjusting block 401, and adjusting nut 402 according to the thickness and hardness of the item being cut. This allows for flexible adjustment of the lever arm length of the scissors body. In addition, both sets of scissor handles 3 on the scissors body are equipped with rubber protrusions 301 at the gripping parts, which increases the friction between the fingers and the scissor handles 3 and prevents slippage during gripping. At the same time, arc-shaped anti-slip teeth 102 are provided on the cutting surfaces of the front blades of the first scissor body 1 and the second scissor body 2, which can play a good role in preventing slippage and fixing the item being cut.

[0029] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 and Figure 3 Four sets of first slots 104 and second slots 201 are respectively provided on one side of the adjustment groove 101 on the first shear body 1 and the second shear body 2. The first slots 104 and the second slots 201 respectively limit the adjustment block 401 and the adjustment nut 402 to prevent the adjustment block 401 and the adjustment nut 402 from sliding during the shearing operation of the first shear body 1 and the second shear body 2.

[0030] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 and Figure 4 The dimensions of the first slot 104 and the second slot 201 are matched with the adjusting block 401 and the adjusting nut 402. The first slot 104, the second slot 201, the adjusting block 401 and the adjusting nut 402 are all set as regular hexagons. When the adjusting nut 402 is inserted into the second slot 201, the adjusting nut 402 will not rotate when the head of the hinge shaft 4 is rotated by the personnel, which makes it convenient for the personnel to disassemble and install the torque adjustment mechanism.

[0031] For details regarding the above embodiments, please refer to [link / reference]. Figure 4The cross-section of the hinge shaft 4 is T-shaped. Both the hinge shaft 4 and the adjusting nut 402 have anti-slip textures on their walls. These anti-slip textures on the walls of the hinge shaft 4 and the adjusting nut 402 can increase the friction between the hinge shaft 4 and the adjusting nut 402 and the user's hand.

[0032] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 A groove 103 is provided on one side of the first shear body 1, and the depth of the groove 103 is less than the depth of the first slot 104. A scale line 105 is provided on one side of the groove 103. When the hinge shaft 4 is hinged and fixed, part of the head of the hinge shaft 4 can be moved into the groove 103, thereby reducing the length of the head of the hinge shaft 4 protruding on the wall of the first shear body 1.

[0033] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The front cutting edges of the first shear body 1 and the second shear body 2 are both provided with anti-slip teeth 102. The tooth surfaces of the anti-slip teeth 102 are smooth and arc-shaped. The tooth height of the anti-slip teeth 102 is set to 1-2mm, and the tooth pitch of the anti-slip teeth 102 is set to 2-3mm. The arc-shaped anti-slip teeth 102 provided on the cutting surfaces of the front cutting edges of the first shear body 1 and the second shear body 2 can play a good anti-slip and fixing role for the cut items.

[0034] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 The height of the protrusion 301 is set to 0.5-1mm, and the distance between adjacent protrusions 301 is 1-2mm. The protrusion 301 is made of rubber. The rubber protrusion 301 on the grip part of the scissor handle 3 increases the friction between the fingers and the scissor handle. Even if the hands are sweaty or dirty, it can effectively prevent slipping when gripping and improve the stability of operation.

[0035] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The end of the scissor handle 3 is provided with a hanging hole 302, and an anti-pinch post 303 is fixed on the outer wall of one side of the scissor handle 3. When the two sets of scissor handles 3 approach each other to a certain distance, the protruding anti-pinch post 303 provided on the inner wall of the scissor handle 3 can prevent the two sets of scissor handles 3 from squeezing the person's hand due to the small distance between them. The scissor body can be hung on the hook through the hanging hole 302 on the scissor handle 3.

[0036] In practical operation, when the torque of the shears needs to be adjusted according to the shearing requirements, firstly, the adjusting nut 402 on one side of the second shear body 2 is rotated off. Then, the installation positions of the hinge shaft 4 and the adjusting block 401 movably sleeved on the hinge shaft 4 are adjusted, and the hinge shaft 4 releases the hinge fixation between the first shear body 1 and the second shear body 2. After the hinge shaft 4 moves to the appropriate position, the adjusting block 401 is inserted into the corresponding slot 104 on the first shear body 1. Then, the adjusting nut 402 is rotated and sleeved onto the threaded end of the hinge shaft 4. When the adjusting nut 402 contacts the wall surface of the second shear body 2, the operator manually presses the adjusting nut 402 into the second slot 201 corresponding to the first slot 104 where the adjusting block 401 is located. Finally, the head of the hinge shaft 4 is manually rotated so that the hinge shaft 4 hinges and fixes the first shear body 1 and the second shear body 2 through the adjusting block 401 and the adjusting nut 402, thereby completing the adjustment of the shear torque.

[0037] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A torque-adjustable, anti-slip toothed, force-saving scissors, comprising a first scissor body (1) and a second scissor body (2), characterized in that: The first shear body (1) is movably connected to the second shear body (2) on one side. One end of the first shear body (1) and the second shear body (2) is provided with an adjustment groove (101). The adjustment groove (101) is equipped with a torque adjustment mechanism. The torque adjustment mechanism includes a hinge shaft (4). An adjustment block (401) is movably sleeved on the outer wall of the hinge shaft (4). An adjustment nut (402) is installed on one end of the hinge shaft (4). A shear handle (3) is fixedly installed on one end of the first shear body (1) and the second shear body (2). A plurality of protrusions (301) are provided on one side of the inner wall of the shear handle (3). Anti-slip teeth (102) are provided on the shear blades of the first shear body (1) and the second shear body (2).

2. The torque-adjustable, anti-slip toothed scissors according to claim 1, characterized in that: Four sets of first slots (104) and second slots (201) are respectively provided on one side of the adjustment groove (101) on the first shear body (1) and the second shear body (2).

3. The torque-adjustable, anti-slip toothed scissors according to claim 2, characterized in that: The size of the first slot (104) and the second slot (201) matches that of the adjusting block (401) and the adjusting nut (402). The first slot (104), the second slot (201), the adjusting block (401) and the adjusting nut (402) are all set to regular hexagons.

4. The torque-adjustable, anti-slip toothed scissors according to claim 1, characterized in that: The cross-section of the hinge shaft (4) is T-shaped, and the walls of both the hinge shaft (4) and the adjusting nut (402) are provided with anti-slip textures.

5. The torque-adjustable, anti-slip toothed scissors according to claim 2, characterized in that: The first shear body (1) has a groove (103) on one side, and the depth of the groove (103) is less than the depth of the first slot (104). A scale line (105) is provided on one side of the groove (103).

6. The torque-adjustable, anti-slip toothed scissors according to claim 1, characterized in that: The front end shear blades of the first shear body (1) and the second shear body (2) are provided with anti-slip teeth (102), and the tooth surface of the anti-slip teeth (102) is provided with an anti-slip arc shape. The tooth height of the anti-slip teeth (102) is set to 1-2mm, and the tooth pitch of the anti-slip teeth (102) is set to 2-3mm.

7. The torque-adjustable, anti-slip toothed, force-saving scissors according to claim 1, characterized in that: The height of the bump (301) is set to 0.5-1mm, and the spacing between adjacent bumps (301) is 1-2mm. The bump (301) is made of rubber.

8. The torque-adjustable, anti-slip toothed scissors according to claim 1, characterized in that: The end of the shear handle (3) is provided with a hanging hole (302), and an anti-pinch post (303) is fixed on the outer wall of one side of the shear handle (3).

Images