Wear resistant, stable, long life scissors

Abstract

This utility model provides a wear-resistant, stable, and long-life scissors, belonging to the field of scissors technology. It includes two scissor blades rotatably connected by a pivot, with their front ends forming a shearing engagement. A handle is connected to the rear end of each scissor blade. Each scissor blade includes a blade body and a replaceable blade. The pivot is located on the blade body, and the replaceable blade is disposed on the side of the pivot away from the handle and detachably connected to the front end of the blade body. The replaceable blade can be removed and replaced after wear, allowing the handle and blade body to remain usable; only the replaceable blade needs to be replaced. This extends the overall lifespan of the scissors, reduces user costs, and the compression-venting anti-adhesion structure blows air outward from the replaceable blade when the handle is closed, preventing foreign objects from adhering to the scissors.

Description

Technical Field

[0001] This utility model belongs to the field of scissors technology and relates to a wear-resistant, stable, and long-life scissors. Background Technology

[0002] In the existing technology, the blades of scissors are made of metal, which is prone to wear during use. Since the blades of scissors are a single piece, wear can render the entire pair of scissors unusable.

[0003] For example, a Chinese patent discloses a highly wear-resistant crescent-shaped scissor blade [application number: 202120836034.X], which includes a blade edge, a crescent-shaped blade, a crescent-shaped blade back, a perforated module, a first wear-resistant layer, a second wear-resistant layer, and a handle. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing a wear-resistant, stable, and long-life pair of scissors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wear-resistant, stable, and long-life pair of scissors includes two scissor blades rotatably connected by a pivot and capable of forming a shearing engagement at their front ends. A handle is connected to the rear end of each scissor blade. Each scissor blade includes a blade body and a replaceable blade. The pivot is connected to the blade body at a location on the blade body. The replaceable blade is located on the side of the pivot away from the handle and is detachably connected to the connection part at the front end of the blade body. A compression venting and anti-sticking structure is also provided between the handle and the blade.

[0007] In the aforementioned wear-resistant, stable, and long-life scissors, the replaceable blade is provided with a connecting groove that matches the connecting part, and a countersunk bolt mounting groove is provided on the outer side of the replaceable blade. The countersunk bolt mounting groove is provided with an external threaded hole that communicates with the connecting groove. The connecting part is provided with an internal threaded hole that corresponds to the external threaded hole. The countersunk bolt mounting groove is also provided with a countersunk bolt that is screwed into the external threaded hole and the internal threaded hole.

[0008] In the aforementioned wear-resistant, stable, and long-life scissors, the replaceable blade is made of wear-resistant material.

[0009] In the aforementioned wear-resistant, stable, and long-life scissors, the wear-resistant material is zirconia ceramic.

[0010] In the aforementioned wear-resistant, stable, and long-life scissors, the compression venting and anti-adhesion structure includes a hidden channel and an open channel on the scissor blade body, and a connecting channel on the handle. The open channel is located on both sides of the connecting part, and the hidden channel is located on the part of the scissor blade body between the connecting part and the handle, with both ends connected to the open channel and the connecting channel respectively. An elastic airbag is also embedded in the inner side of the handle, and the air outlet of the elastic airbag is connected to the connecting channel. The replaceable blade has several vent holes that are evenly spaced along the direction of the open channel and connected to the open channel, and are provided through the inner and outer sides.

[0011] In the aforementioned wear-resistant, stable, and long-life scissors, the open channel can form a closed channel with the inner wall of the replaceable blade.

[0012] In the aforementioned wear-resistant, stable, and long-life scissors, the outer end of the elastic air bladder protrudes from the inner end of the handle, and the elastic air bladders on the two handles can form a compression fit.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] 1. The replaceable blades that make up the scissor blades can be disassembled and replaced after wear, so that the scissor handle and the main body of the scissor blades can be retained and used. Only the replaceable blades need to be replaced, which can extend the overall service life of the scissors and reduce user costs. The squeeze venting and anti-sticking structure can blow air outward from the replaceable blades when the scissor handle is closed to prevent foreign objects from adhering to the scissors.

[0015] 2. Replaceable blades made of zirconia ceramic can improve the wear resistance of scissors and extend their service life. Since zirconia ceramic is expensive, using scissor blades composed of replaceable blades and a scissor body can reduce costs.

[0016] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial sectional view of the countersunk bolt.

[0019] In the diagram, 1 is the pivot, 2 is the shear blade, 3 is the handle, 4 is the shear blade body, 5 is the replaceable blade, 6 is the connecting part, 7 is the extrusion venting and anti-adhesion structure, 8 is the connecting groove, 9 is the countersunk bolt mounting groove, 10 is the external threaded hole, 11 is the internal threaded hole, 12 is the countersunk bolt, 13 is the open channel, 14 is the elastic airbag, and 15 is the vent hole. Detailed Implementation

[0020] like Figure 1 and Figure 2 As shown, a wear-resistant, stable, and long-life pair of scissors includes two scissor blades 2 that are rotatably connected by a pivot 1 and whose front ends can form a shearing engagement. The rear end of each scissor blade 2 is connected to a handle 3. Each scissor blade 2 includes a scissor blade body 4 and a replaceable blade 5. The pivot 1 is connected to the scissor blade 2 at the scissor blade body 4. The replaceable blade 5 is located on the side of the pivot 1 away from the handle 3 and is detachably connected to the connecting part 6 at the front end of the scissor blade body 4. A compression venting and anti-sticking structure 7 is also provided between the handle 3 and the scissor blade 2.

[0021] In this invention, the replaceable blades that make up the scissor blades can be disassembled and replaced after wear, so that the scissor handle and the main body of the scissor blades can be retained and used. Only the replaceable blades need to be replaced, which can extend the overall service life of the scissors and reduce user costs. The extrusion and anti-adhesion structure can blow air outward from the replaceable blades when the scissor handle is closed to prevent foreign objects from adhering to the scissors.

[0022] Specifically, the replaceable blade 5 has a connecting groove 8 that matches the connecting part 6. A countersunk bolt mounting groove 9 is provided on the outer side of the replaceable blade 5. The countersunk bolt mounting groove 9 has an external threaded hole 10 communicating with the connecting groove 8. The connecting part 6 has an internal threaded hole 11 corresponding to the external threaded hole 10. The countersunk bolt mounting groove 9 also has a countersunk bolt 12 that is screwed into the external threaded hole 10 and the internal threaded hole 11. This structure allows for the assembly and disassembly of the replaceable blade.

[0023] Preferably, the replaceable blade 5 is made of a wear-resistant material, specifically zirconia ceramic. Using a replaceable blade made of zirconia ceramic improves the wear resistance of the scissors and extends their lifespan. Since zirconia ceramic is relatively expensive, using a scissor blade composed of a replaceable blade and a scissor body reduces costs.

[0024] Specifically, the compression-venting anti-adhesion structure 7 includes a hidden channel and an open channel 13 on the scissor blade body 4, and a connecting channel on the handle 3. The open channel 13 is located on both sides of the connecting part 6, and the hidden channel is located on the part of the scissor blade body 4 between the connecting part 6 and the handle 3, with both ends connected to the open channel 13 and the connecting channel, respectively. An elastic airbag 14 is also embedded in the inner side of the handle 3, and the air outlet of the elastic airbag 14 is connected to the connecting channel. Several vent holes 15 are evenly spaced along the direction of the open channel 13 and connected to the open channel 13, and are provided through the inner and outer sides of the replaceable blade 5. When the handle is closed, the two elastic airbags can be compressed. After being compressed, the elastic airbags can force gas from the connecting channel, the hidden channel, and the open channel towards the vent holes 15, thereby forming an airflow at the vent holes and blowing away foreign objects that may adhere to the replaceable blade.

[0025] Specifically, the open channel 13 can form a closed channel with the inner wall of the replaceable blade 5.

[0026] Specifically, the outer end of the elastic airbag 14 protrudes from the inner end of the handle 3, and the elastic airbags 14 on the two handles 3 can form a compression fit.

[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0028] Although this article frequently uses terms such as pivot 1, scissor blade 2, handle 3, scissor blade body 4, replaceable blade 5, connecting part 6, extrusion venting and anti-adhesion structure 7, connecting groove 8, countersunk bolt mounting groove 9, external threaded hole 10, internal threaded hole 11, countersunk bolt 12, open channel 13, elastic airbag 14, vent hole 15, etc., these terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would be contrary to the spirit of this utility model.

Claims

1. A wear-resistant, stable, and long-life pair of scissors, comprising two scissor blades (2) rotatably connected by a pivot (1) and whose front ends can form a shearing engagement, wherein a handle (3) is connected to the rear end of the scissor blades (2), characterized in that, The scissor blade (2) includes a scissor blade body (4) and a replaceable blade (5). The connection between the rotating shaft (1) and the scissor blade (2) is located on the scissor blade body (4). The replaceable blade (5) is located on the side of the rotating shaft (1) away from the handle (3) and is detachably connected to the connection part (6) at the front end of the scissor blade body (4). A compression venting and anti-sticking structure (7) is also provided between the handle (3) and the scissor blade (2).

2. The wear resistant, stable, long life scissors of claim 1, wherein, The replaceable blade (5) is provided with a connecting groove (8) that is compatible with the connecting part (6). The replaceable blade (5) is provided with a countersunk bolt mounting groove (9) on its outer side. The countersunk bolt mounting groove (9) is provided with an external threaded hole (10) that communicates with the connecting groove (8). The connecting part (6) is provided with an internal threaded hole (11) that corresponds to the external threaded hole (10). The countersunk bolt mounting groove (9) is also provided with a countersunk bolt (12) that is screwed into the external threaded hole (10) and the internal threaded hole (11).

3. The wear-resistant, stable, and long-life scissors according to claim 2, characterized in that, The replaceable blade (5) is made of wear-resistant material.

4. The wear-resistant, stable, and long-life scissors according to claim 3, characterized in that, The wear-resistant material is zirconia ceramic.

5. The wear-resistant, stable, and long-life scissors according to claim 2, characterized in that, The extrusion exhaust and anti-adhesion structure (7) includes a hidden channel and an open channel (13) on the scissor blade body (4) and a connecting channel on the handle (3). The open channel (13) is located on both sides of the connecting part (6). The hidden channel is located on the part of the scissor blade body (4) between the connecting part (6) and the handle (3) and its two ends are connected to the open channel (13) and the connecting channel, respectively. An elastic airbag (14) is also embedded in the inner side of the handle (3). The air outlet of the elastic airbag (14) is connected to the connecting channel. The inner and outer sides of the replaceable blade (5) are provided with a number of exhaust holes (15) that are evenly spaced along the setting direction of the open channel (13) and connected to the open channel (13).

6. The wear-resistant, stable, and long-life scissors according to claim 5, characterized in that, The open channel (13) can form a closed channel with the inner wall of the replaceable blade (5).

7. The wear-resistant, stable, and long-life scissors according to claim 5, characterized in that, The outer end of the elastic airbag (14) protrudes from the inner end of the handle (3), and the elastic airbags (14) on the two handles (3) can form a compression fit.

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