Self-locking cutting nippers

Abstract

The utility model relates to the technical field of cutting nippers, in particular to self-locking type cutting nippers. The self-locking type cutting pliers specifically comprise a pair of knife pliers and a pair of knife pliers, wherein the knife pliers comprise a knife pliers head into which a steel ribbon is inserted; the tightening clamp comprises a tightening clamp head and an occlusion mechanism for compressing the steel cable tie, and the occlusion mechanism is located at the tightening clamp head; the tightening clamp is rotationally connected with the knife clamp through the connecting piece; and the rotary clamp knife is rotationally connected with the knife clamp head so as to cut off the steel cable tie. During use, the steel ribbon is inserted into the forceps head of the knife forceps, the function of tightening the steel ribbon is achieved through the meshing mechanism of the tightening forceps, the tightening speed is high, and the tightening effect is firmer; and after the cable is tensioned, the steel cable tie in the clamp head of the clamp can be easily cut off by using the rotary clamp knife, so that the binding and fastening efficiency of the cable is effectively improved. The steel cable tie shearing and tensioning device has the advantages of shearing and tensioning a steel cable tie.

Description

Technical Field

[0001] This utility model relates to the field of cutting pliers technology, and in particular to a self-locking cutting pliers. Background Technology

[0002] To ensure the normal operation of the subway, numerous devices need to be installed along the trackside to realize the various functions of the subway. The power and communication cables of this equipment require sufficiently strong steel cable ties for binding and securing, thus preventing loose cables from encroaching on the tracks and affecting subway safety. Currently, there are no suitable tools for using steel cable ties; only diagonal pliers or pliers can be used to tighten and cut off the excess ties. Pliers have limited tightening power, and diagonal pliers have a small lever arm ratio, are not labor-saving enough, and their diagonal blades are not sharp enough, requiring only people with strong arms to successfully cut the steel cable ties. During the use of steel cable ties, due to their high strength, the tightness is insufficient, failing to properly secure the trackside cables, leading to cable loosening and affecting train safety. The inconvenience of cutting the steel cable ties also affects the work efficiency of maintenance personnel; some uncut excess steel cable ties remain on the cables, posing a certain safety hazard.

[0003] Therefore, a self-locking shearing pliers is provided to address the shortcomings of existing technologies. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a self-locking cutting pliers, which aims to solve the problem of the lack of tools that can be used with steel cable ties.

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

[0006] A self-locking pair of cutting pliers, comprising:

[0007] Knife pliers, including plier heads for inserting steel cable ties;

[0008] A tightening pliers, including a tightening pliers head and a clamping mechanism for clamping steel cable ties, wherein the clamping mechanism is located at the tightening pliers head;

[0009] A connector is provided, through which the tightening pliers are rotatably connected to the knife pliers;

[0010] A rotating pliers blade, which is rotatably connected to the pliers head to cut steel cable ties.

[0011] As a further improvement to the technical solution of this utility model, the pliers head includes an inlet groove, a shearing cavity, and an outlet groove, wherein the shearing cavity connects the inlet groove and the outlet groove.

[0012] As a further improvement to the technical solution of this utility model, the rotary pliers includes a blade and a handle. The blade is fixedly connected to the handle and rotates within the shearing chamber. The blade is used to cut steel cable ties.

[0013] As a further improvement to the technical solution of this utility model, the lever arm ratio between the handle and the cutter head is 5-50.

[0014] As a further improvement to the technical solution of this utility model, it also includes a spring-loaded component, which connects the jaws of the pliers and the jaws of the tightening pliers.

[0015] As a further improvement to the technical solution of this utility model, the biting mechanism includes a tightening tooth block, an abutment block, and a reset component. The tightening tooth block is rotatably connected to the tightening pliers head, the abutment block is fixedly connected to the tightening pliers head, and the tightening tooth block is connected to the reset component.

[0016] As a further improvement to the technical solution of this utility model, the tightening tooth block includes a first abutting surface and a second abutting surface, and the abutting block includes a third abutting surface. The first abutting surface and the third abutting surface are used to clamp the steel cable tie, and the second abutting surface abuts or separates from the pliers head.

[0017] As a further improvement to the technical solution of this utility model, the first contact surface is serrated.

[0018] As a further improvement to the technical solution of this utility model, it also includes a protective sleeve. The body of the pliers includes a first handle, and the body of the tightening pliers includes a second handle. The protective sleeve is fitted over the first handle and the second handle.

[0019] As a further improvement to the technical solution of this utility model, it also includes a protective sleeve. The body of the pliers includes a first handle, and the body of the tightening pliers includes a second handle. The protective sleeve is fitted over the first handle and the second handle.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] The self-locking cable cutter provided by this utility model allows for the insertion of steel cable ties into the pliers' jaws during use. The tightening mechanism of the pliers then tightens the steel cable ties quickly and effectively. After tightening, rotating the pliers allows for easy cutting of the steel cable ties within the jaws, effectively improving the efficiency of cable binding. This self-locking cable cutter also features the ability to cut and tighten steel cable ties. Attached Figure Description

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0023] Figure 1 This is a schematic diagram of the structure of the self-locking shears in normal condition.

[0024] Figure 2 This is a schematic diagram of the self-locking shears in the clamping state of this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the self-locking shearing pliers of this utility model in the shearing state;

[0026] Figure 4 This is a schematic diagram of the structure of the self-locking cutting pliers of this utility model;

[0027] Figure 5 This is a schematic diagram of the tightening pliers in the self-locking cutting pliers of this utility model;

[0028] Figure 6 yes Figure 5 Enlarged structural diagram at point A;

[0029] Figure 7 This is a front view of the rotating pliers blade in the self-locking pliers of this utility model;

[0030] Figure 8 This is a top view of the rotating pliers blade in the self-locking pliers of this utility model.

[0031] In the picture:

[0032] 1. Pliers; 11. Pliers head; 111. Inlet groove; 112. Shearing chamber; 113. Outlet groove;

[0033] 2. Tightening clamps; 21. Tightening clamp head; 22. Engaging mechanism; 221. Tightening tooth block; 2211. First abutment surface; 2212. Second abutment surface; 222. Abutment block; 2221. Third abutment surface; 223. Reset component;

[0034] 3. Connectors;

[0035] 4. Rotary pliers blade; 41. Blade head; 42. Handle;

[0036] 5. Springback component; 6. Sheath; 7. Steel cable tie. Detailed Implementation

[0037] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0038] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0039] Reference Figures 1 to 8 A self-locking pair of pliers includes a blade pliers 1, a tightening pliers 2, a connector 3, and a rotating blade 4.

[0040] In one embodiment, the pliers 1 includes a pliers head 11 for inserting the steel cable tie 7; the tightening pliers 2 includes a tightening pliers head 21 and a clamping mechanism 22 for clamping the steel cable tie 7, the clamping mechanism 22 being located at the tightening pliers head 21; the tightening pliers 2 is rotatably connected to the pliers 1 via a connector 3; the rotating pliers blade 4 is rotatably connected to the pliers head 11 to cut the steel cable tie 7.

[0041] In this invention, the steel cable tie 7 is inserted into the pliers head 11, and the clamping mechanism 22 of the tightening pliers 2 tightens the steel cable tie 7 quickly and effectively. After tightening, the rotating pliers blade 4 easily cuts the steel cable tie 7 inside the pliers head 11, effectively improving the efficiency of cable binding. This self-locking pliers not only cuts but also tightens the steel cable tie 7, facilitating the laying of trackside equipment cables and greatly improving the efficiency of trackside cable laying. The improved tightening effect of the steel cable tie 7 and the removal of excess cable ties significantly enhance the stability of trackside cables, thereby improving subway operation safety.

[0042] In one embodiment, refer to Figure 4 As shown, the pliers head 11 includes an inlet groove 111, a shearing chamber 112, and an outlet groove 113. The shearing chamber 112 connects the inlet groove 111 and the outlet groove 113. Grooves of corresponding specifications can be designed for steel cable ties 7 of different thicknesses, allowing for use with the appropriate steel cable ties 7.

[0043] In one embodiment, refer to Figures 7-8As shown, the rotary pliers 4 includes a cutter head 41 and a handle 42. The cutter head 41 is fixedly connected to the handle 42. The rear end of the cutter head 41 connected to the handle 42 is cylindrical, and the front end of the cutter head 41 is semi-cylindrical. The semi-cylindrical cutter head 41 is flush with the groove and is located above the shearing chamber 112. The cutter head 41 rotates within the shearing chamber 112 and is used to cut the steel cable tie 7. When the handle 42 is rotated, the semi-cylindrical cutter head 41 cuts the steel cable tie 7 in the shearing chamber 112 counterclockwise. The rotation angle between the pliers head 11 and the rotary pliers 4 is 0°-90°. The steel cable tie 7 enters from the inlet groove 111, passes through the shearing chamber 112, and exits from the outlet groove 113. When it is necessary to cut the steel cable tie 7, the handle is rotated counterclockwise by 45°, and the cutter head 41 cuts the steel cable tie 7 within the shearing chamber 112. Preferably, the lever arm ratio of the handle 42 to the cutter head 41 is 25, which significantly saves effort and can easily cut the steel cable ties 7.

[0044] In one embodiment, the self-locking pliers further includes a spring-loaded member 5, which connects the jaws of the pliers 1 and the jaws of the tightening pliers 2. The connector 3 works in conjunction with the spring-loaded member to achieve the pressing and resetting of the pliers 1 and the tightening pliers 2.

[0045] In one embodiment, refer to Figures 5-6 As shown, the clamping mechanism 22 includes a tightening tooth block 221, an abutment block 222, and a resetting member 223. The tightening tooth block 221 is rotatably connected to the clamping jaws 21, the abutment block 222 is fixedly connected to the clamping jaws 21, and the tightening tooth block 221 is connected to the resetting member 223. The tightening tooth block 221 includes a first abutment surface 2211 and a second abutment surface 2212, and the abutment block 222 includes a third abutment surface 2221. The first abutment surface 2211 and the third abutment surface 2221 are used to clamp the steel cable tie 7, and the second abutment surface 2212 abuts against or separates from the pliers jaws 11. Preferably, the first abutment surface 2211 is serrated, the abutment block 222 is rectangular, and the resetting member 223 is a spring. When the tightening pliers 2 and the knife pliers 1 are in normal condition, the second abutting surface 2212 of the tightening tooth block 221 abuts against the knife pliers head 11, and the first abutting surface 2211 and the third abutting surface 2221 separate, and the steel cable tie 7 passes between the first abutting surface 2211 and the third abutting surface 2221. When the tightening pliers 2 and the knife pliers 1 are pressed together, the second abutting surface 2212 of the tightening tooth block 221 separates from the knife pliers head 11, and the tightening tooth block 221 rotates counterclockwise under the action of the reset member 223, so that the first abutting surface 2211 and the third abutting surface 2221 engage and fix the steel cable tie 7 inserted therein.

[0046] In one embodiment, refer to Figure 3 As shown, the self-locking pliers also include a sheath 6. The pliers 1 has a first handle, and the tightening pliers 2 has a second handle. The sheath 6 is fitted onto the first and second handles. The sheath 6 is made of a wear-resistant material and can be a non-slip plastic sheath 6 or a rubber sheath 6.

[0047] Other aspects of the self-locking shears described in this utility model are found in the prior art and will not be repeated here.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A self-locking pair of cutting pliers, characterized in that, include: Knife pliers, including plier heads for inserting steel cable ties; A tightening pliers, including a tightening pliers head and a clamping mechanism for clamping steel cable ties, wherein the clamping mechanism is located at the tightening pliers head; A connector is provided, through which the tightening pliers are rotatably connected to the knife pliers; A rotating pliers blade, which is rotatably connected to the pliers head to cut steel cable ties.

2. The self-locking pliers according to claim 1, characterized in that, The pliers head includes an inlet groove, a shearing chamber, and an outlet groove, with the shearing chamber connecting the inlet groove and the outlet groove.

3. A self-locking pair of pliers according to claim 2, characterized in that, The rotary pliers includes a cutting head and a handle. The cutting head is fixedly connected to the handle and rotates within the shearing chamber. The cutting head is used to cut steel cable ties.

4. A self-locking pair of cutting pliers according to claim 3, characterized in that, The lever arm ratio between the handle and the cutter head is 5-50.

5. A self-locking pair of cutting pliers according to claim 1, characterized in that, It also includes a spring-loaded component that connects the jaws of the pliers and the jaws of the tightening pliers.

6. A self-locking pair of cutting pliers according to claim 1, characterized in that, The engagement mechanism includes a tightening tooth block, an abutment block, and a resetting component. The tightening tooth block is rotatably connected to the tightening pliers head, the abutment block is fixedly connected to the tightening pliers head, and the tightening tooth block is connected to the resetting component.

7. A self-locking pair of cutting pliers according to claim 6, characterized in that, The tightening tooth block includes a first abutting surface and a second abutting surface, and the abutting block includes a third abutting surface. The first abutting surface and the third abutting surface are used to clamp the steel cable tie, and the second abutting surface abuts against or separates from the pliers head.

8. A self-locking pair of pliers according to claim 7, characterized in that, The first contact surface is serrated.

9. A self-locking pair of cutting pliers according to claim 1, characterized in that, It also includes a sheath, the jaws of the pliers include a first handle, the jaws of the tightening pliers include a second handle, and the sheath is fitted over the first handle and the second handle.

10. A self-locking pair of cutting pliers according to claim 1, characterized in that, The rotation angle between the pliers head and the rotating pliers blade is 0°-90°.

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