Multifunctional crimping pliers

Abstract

The utility model relates to a multifunctional crimping plier, and relates to the technical field of crimping plier, the multifunctional crimping plier comprises a supporting handle, a pressing handle, a plier head arranged on the pressing handle, and a connecting piece used for connecting the supporting handle and the pressing handle, the plier head comprises a gear ring hinged to the end portion of the pressing handle and pressing teeth hinged to the inner wall of the gear ring, the supporting handle is fixedly provided with an extension plate, and the extension plate is fixedly provided with a clamping groove. The extension plate can rotate relative to the gear ring around the axis of the gear ring when pressing the pressing handle; a wire stripping seat is fixedly arranged on the supporting handle, a wire stripping knife is hinged to the wire stripping seat, a wire stripping groove is formed in the side face of the wire stripping seat, and a wire stripping through groove communicated with the wire stripping groove is formed in the supporting handle; the crimping pliers can be used for wire stripping, during wire stripping, a cable penetrates through the wire stripping through groove and then is inserted into the wire stripping groove in advance, then the wire stripping knife is pressed and the cable is rotated, and the insulating skin outside the cable is annularly cut through the wire stripping knife, so that wire stripping of the cable is realized, and the time for preparing a wire stripping tool is shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crimping pliers, in particular to a multifunctional crimping plier. BACKGROUND

[0002] As a cornerstone tool in the field of electrical maintenance and wiring construction, the importance of manual mechanical crimping pliers is self-evident. With its sophisticated mechanical structure and simple manual operation mechanism, it precisely crimps wires and cables, providing a solid guarantee for the stability and safety of electrical connections. With the rapid development of electrical technology, the design and manufacturing process of manual crimping pliers are continuously improving, striving to exhibit more outstanding performance in diverse application scenarios.

[0003] In the related art, a self-adaptive crimping plier with publication number CN207677234U combines the stability of a long handle, the flexibility of a movable handle, and a carefully designed transmission mechanism to ensure the precision and efficiency of the crimping action. The plier head part is ingeniously designed, with precise cooperation between the gear ring and the pressure teeth, forming a strong crimping force. Meanwhile, the rectangular array distribution between the pressure teeth and the clever design of the crimping space further improve the crimping quality and efficiency.

[0004] However, despite the excellent performance of this self-adaptive crimping plier in crimping function, its single function has gradually become a bottleneck restricting its widespread application. In the actual process of electrical work, the crimping operation is usually only the first step, followed by the stripping of the cable end insulation. This step often requires the replacement of special tools such as wire strippers, not only increasing the operation steps but also prolonging the overall operation time, affecting the work efficiency. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present application is to provide a multifunctional crimping plier to solve the problem of frequent tool replacement in the process of cable processing in the related art, affecting the processing efficiency.

[0006] The multifunctional crimping plier provided by the present application adopts the following technical solution:

[0007] A multifunctional crimping plier includes a support handle, a pressing handle, a plier head arranged on the pressing handle, and a connecting piece for connecting the support handle and the pressing handle. The plier head includes a gear ring hinged to the end of the pressing handle and a plurality of pressure teeth hinged to the inner wall of the gear ring. An extension plate is fixed on the support handle. The extension plate can rotate relative to the gear ring around the axis of the gear ring when pressing the pressing handle. A wire stripping seat is fixed on the side surface of the support handle. A wire stripping knife is hinged to the wire stripping seat through a rotating shaft. A plurality of wire stripping grooves for placing cables are formed on the side surface of the wire stripping seat facing the wire stripping knife. A wire stripping through slot is formed in the support handle and communicates with the wire stripping grooves.

[0008] By adopting the above technical solution, when crimping the wire, the cable is inserted into the extension plate and the gear ring in advance, and then force is applied to press the pressing handle, and the connecting piece is linked with the support handle, so that the extension plate can rotate relative to the gear ring around the axis of the gear ring, and finally the pressing teeth are moved. When the pressing teeth move, the cable in the gear ring can be inserted for crimping; due to the installation arrangement of the wire stripping seat and the wire stripping knife on the support handle, the wire crimping pliers can be used for wire stripping. When stripping the wire, the cable is pre-inserted into the wire stripping slot after passing through the wire stripping slot, and then the wire stripping knife is pressed and the cable is rotated. The wire stripping knife cuts the insulation skin on the outside of the cable, thereby realizing wire stripping of the cable, reducing the time for preparing additional stripping tools and improving the cable processing efficiency.

[0009] Optionally, a positioning plug is fixed on the wire stripping seat, and a positioning hole for the positioning plug to be embedded and fixed is opened on the support handle.

[0010] By adopting the above technical solution, after the stripping seat and the support handle are assembled, the positioning plug on the stripping seat is embedded into the positioning socket on the support handle, thereby realizing the installation and fixation of the stripping seat.

[0011] Optionally, a protrusion inserted into the wire stripping slot is fixedly provided on the side surface of the wire stripping seat, and one side of the protrusion is in contact with the inner wall of the wire stripping slot.

[0012] By adopting the above technical solution, after the wire stripping seat is installed, one side of the protrusion on the wire stripping seat is inserted into the wire stripping groove and fits with the inner wall of the wire stripping groove, thereby further improving the installation stability of the wire stripping seat.

[0013] Optionally, a reset spring is provided on the side of the support handle, and a fixing groove for the reset spring to be embedded and fixed is opened on the side of the wire stripping seat facing the wire stripping knife, and the end of the reset spring away from the wire stripping seat is pressed against the side of the wire stripping knife facing the wire stripping seat.

[0014] By adopting the above technical solution, when stripping the cable, the installation of the reset spring facilitates the automatic reset of the wire stripping knife after being pressed, thereby improving the performance of the wire crimping pliers during application.

[0015] Optionally, a tangent notch for inserting the cable is opened on the extension plate, a tangent knife hinged to the pressing handle is fixed on the side of the gear ring, and a tangent blade is fixed on the tangent knife, which can cut the cable in the tangent notch.

[0016] By adopting the above technical solution, when cutting the wire, due to the coordinated arrangement of the wire cutter and the wire cutting notch, the cable is placed in the wire cutting notch in advance, and the pressing handle is pressed to cause the wire cutter to rotate relative to the extension plate along with the gear ring, thereby causing the wire cutting edge on the wire cutter to cut the cable in the wire cutting notch. When cutting the cable, the time for preparing additional wire cutting tools is reduced, thereby improving the efficiency of cable processing.

[0017] Optionally, a limiting rod is fixedly provided on the side surface of the thread cutter, and an arc-shaped through groove for the limiting rod to be inserted is formed on the extension plate, and the limiting rod can slide back and forth along the arc-shaped through groove.

[0018] By adopting the above technical solution, when the thread cutter rotates with the gear ring relative to the extension plate, the limiting rod slides synchronously in the arc-shaped through groove, thereby limiting and adjusting the rotation angle of the thread cutter.

[0019] Optionally, a first protective shell is provided on the outside of the support handle, and a second protective shell is provided on the outside of the pressing handle.

[0020] By adopting the above technical solution, the possibility of the user's palm slipping when using the crimping pliers is reduced, and the safety performance of the crimping pliers during use is improved.

[0021] Optionally, a plurality of anti-slip grooves are provided on the outer sides of the first protective shell and the second protective shell.

[0022] By adopting the above technical solution, the user can better hold the first protective shell and the second protective shell, making the support handle and the pressing handle more firmly held.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Due to the installation of the wire stripping seat and wire stripping knife on the support handle, the crimping pliers can be used for wire stripping. When stripping the wire, the cable is first passed through the wire stripping slot and inserted into the wire stripping slot. Then, the wire stripping knife is pressed and the cable is rotated. The wire stripping knife cuts the insulation on the outside of the cable to achieve wire stripping. This reduces the time for preparing additional stripping tools and improves the efficiency of cable processing.

[0025] 2. Due to the coordinated design of the tangent knife and the tangent notch, when tangent is performed, the cable is placed in the tangent notch in advance, and the pressing handle is pressed to rotate the tangent knife relative to the extension plate along with the gear ring, thereby causing the tangent blade on the tangent knife to cut the cable in the tangent notch. When tangent processing is performed on the cable, the time for preparing additional tangent tools is reduced, and the cable processing efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0028] Figure 2 This is a schematic diagram of the pliers head installation and matching structure embodied in Example 1 of the present application;

[0029] Figure 3 This is a schematic diagram of the installation and matching structure of the wire stripping seat and the wire stripping knife embodied in Example 1 of the present application;

[0030] Figure 4 This is a partial cross-sectional structural diagram of the installation and coordination of the return spring in Example 1 of the present application;

[0031] Figure 5 This is a partial cross-sectional structural diagram of the installation and cooperation of the wire stripping seat in Example 1 of the present application;

[0032] Figure 6 This is a partial structural diagram of the installation and coordination of the thread cutter in Example 1 of the present application;

[0033] Figure 7 This is a schematic diagram of the exploded structure of the installation distribution of the wire cutting knife in Example 1 of the present application;

[0034] Figure 8 This is a schematic diagram of the structure of the first protective shell and the second protective shell installed in embodiment 1 of the present application;

[0035] Figure 9 It is a schematic diagram of the overall structure of Example 2 of the present application.

[0036] In the figure, 1. support handle; 11. extension plate; 111. tangent notch; 112. arc-shaped through groove; 12. wire stripping through groove; 13. positioning socket; 2. pressing handle; 3. pliers head; 31. gear ring; 32. pressing tooth; 33. wire cutter; 331. wire cutter blade; 332. limiting rod; 4. connecting piece; 5. wire stripping assembly; 51. wire stripping seat; 511. wire stripping groove; 512. fixing groove; 513. limiting block; 514. positioning plug; 515. protrusion; 52. wire stripper; 521. limiting notch; 53. reset spring; 6. first protective shell; 61. anti-slip groove; 7. second protective shell. DETAILED DESCRIPTION

[0037] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0038] Example 1:

[0039] Reference Figure 1 and Figure 2 A multifunctional crimping pliers comprises a support handle 1, a pressing handle 2, a pliers head 3 provided on the pressing handle 2, and a connector 4 for connecting the support handle 1 and the pressing handle 2. The pliers head 3 comprises a gear ring 31 hinged to the end of the pressing handle 2 and four pressing teeth 32 hinged to the inner wall of the gear ring 31. An extension plate 11 is fixed to the support handle 1.

[0040] When crimping the cable, the cable is first inserted through the extension plate 11 and into the gear ring 31, and then force is applied to press the pressing handle 2, and linked with the support handle 1 through the connecting member 4, so that the extension plate 11 can rotate relative to the gear ring 31 around the axis of the gear ring 31, and finally the pressing teeth 32 are moved. When the pressing teeth 32 are moved, the cable in the gear ring 31 can be inserted for crimping. This is a conventional wire crimping pliers structure and will not be repeated here.

[0041] Reference Figure 2 and Figure 3 A wire stripping assembly 5 is provided on the side of the support handle 1, wherein the wire stripping assembly 5 includes a wire stripping seat 51 and a wire stripping knife 52, wherein the wire stripping seat 51 is fixed on the side of the support handle 1, and the wire stripping seat 51 is hinged to one side edge of the wire stripping knife 52 through a rotating shaft, and a plurality of wire stripping grooves 511 for inserting cables are provided on the side of the wire stripping seat 51 facing the wire stripping knife 52, and the inner diameters of the plurality of wire stripping grooves 511 decrease in a direction away from the extension plate 11, and a wire stripping through groove 12 communicating with the wire stripping groove 511 is provided on the support handle 1;

[0042] When stripping the wire, the cable is first passed through the stripping slot 12 and then inserted into the stripping slot 511. Then the stripping knife 52 is pressed and the cable is rotated. The stripping knife 52 cuts the insulation skin on the outside of the cable to achieve stripping of the cable.

[0043] Reference Figure 3 and Figure 4 A return spring 53 is provided on the side of the support handle 1, wherein a fixing groove 512 for the return spring 53 to be inserted and fixed is opened on the side of the wire stripping seat 51 facing the wire stripping knife 52. The end of the return spring 53 away from the wire stripping seat 51 is pressed tightly against the side of the wire stripping knife 52 facing the wire stripping seat 51; thereby, the wire stripping knife 52 can be automatically reset after stripping is completed;

[0044] A limiting block 513 is fixedly provided on the side of the wire stripping seat 51 close to the rotating shaft, and a limiting notch 521 is provided on the wire stripping knife 52 for the limiting block 513 to be rotatably inserted, thereby limiting the wire stripping knife 52 during its rotation.

[0045] Reference Figure 4 and Figure 5 Two positioning plug blocks 514 are integrally formed on opposite sides of the wire stripping seat 51, and positioning insertion holes 13 are formed on the support handles 1 on both sides of the wire stripping seat 51 for the positioning plug blocks 514 to be embedded and fixed; after the two support handles 1 are assembled, the wire stripping seat 51 is installed and fixed;

[0046] The wire stripping seat 51 has a protruding part 515 integrally formed on opposite sides thereof and inserted into the wire stripping groove 12, and after the wire stripping seat 51 is installed, one side of the protruding part 515 is inserted into the wire stripping groove 12 and abuts against the inner wall of the wire stripping groove 12, so as to further improve the installation stability of the wire stripping seat 51.

[0047] Referring to Figure 6 and Figure 7 The extension plate 11 is provided with a wire cutting notch 111 for placing a cable therein, and the side surface of the gear ring 31 is fixedly provided with a wire cutting knife 33 hinged to the pressing handle 2, the wire cutting knife 33 and the gear ring 31 have the same hinge shaft of the pressing handle 2, and the wire cutting knife 33 is integrally formed with a wire cutting blade 331; when the wire cutting knife 33 rotates relative to the extension plate 11 along with the gear ring 31, the wire cutting blade 331 on the wire cutting knife 33 can cut the cable in the wire cutting notch 111.

[0048] The side surface of the wire cutting knife 33 is fixedly provided with a limiting rod 332, and the extension plate 11 is provided with an arc-shaped through groove 112 for inserting the limiting rod 332; when the wire cutting knife 33 rotates relative to the extension plate 11 along with the gear ring 31, the limiting rod 332 synchronously slides in the arc-shaped through groove 112, and at the limit position of rotation, the limiting rod 332 abuts against the inner walls on both sides of the arc-shaped through groove 112, so as to limit and adjust the rotation angle of the wire cutting knife 33.

[0049] Referring to Figure 8 The outer part of the support handle 1 is fixedly provided with a first protective shell 6 made of plastic, and the outer part of the pressing handle 2 is fixedly provided with a second protective shell 7 made of plastic; and the mutually distal side surfaces of the first protective shell 6 and the second protective shell 7 are provided with a plurality of anti-skid grooves 61.

[0050] The implementation principle of the embodiment of the present application is as follows:

[0051] When the wire is pressed, the cable is inserted into the extension plate 11 and the gear ring 31 in advance, then the pressing handle 2 is pressed by force, and the extension plate 11 is driven to rotate relative to the gear ring 31 around the axis of the gear ring 31 through the linkage of the adapter 4 and the support handle 1, so that the pressing teeth 32 act on the cable inserted into the gear ring 31 for crimping;

[0052] When cutting the wire, the cable is placed in the cutting notch 111 in advance, and the pressing handle 2 is pressed to make the wire cutter 33 rotate relative to the extension plate 11 along with the gear ring 31, so that the wire cutting blade 331 on the wire cutter 33 cuts the cable in the cutting notch 111; when stripping the wire, the cable is passed through the wire stripping groove 12 in advance and then inserted into the wire stripping groove 511, and then the wire stripping knife 52 is pressed and the cable is rotated, and the wire stripping knife 52 is used to cut the insulation skin on the outside of the cable, thereby stripping the cable.

[0053] Example 2:

[0054] Reference Figure 9 The difference between the embodiment of the present application and embodiment 1 is that the number of the pressing teeth 32 is six.

[0055] Unless otherwise defined, the terms or scientific terms used in this application should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "A" or "one" and other similar words do not indicate a quantity limit, but rather indicate the existence of at least one. "Include" or "comprising" and other similar words mean that the elements or objects appearing before "include" or "comprising" cover the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0056] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A multifunctional wire crimping pliers, comprising a support handle (1), a pressing handle (2), a pliers head (3) arranged on the pressing handle (2), and a connecting piece (4) for connecting the support handle (1) and the pressing handle (2), wherein the pliers head (3) comprises a gear ring (31) hinged to the end of the pressing handle (2) and a plurality of pressing teeth (32) hinged to the inner wall of the gear ring (31), an extension plate (11) is fixedly provided on the support handle (1), and the extension plate (11) can rotate relative to the gear ring (31) around the axis of the gear ring (31) when the pressing handle (2) is pressed; It is characterized in that A wire stripping seat (51) is fixedly provided on the side of the support handle (1), a wire stripping knife (52) is hingedly connected to the wire stripping seat (51) via a rotating shaft, a plurality of wire stripping grooves (511) for inserting cables are provided on the side of the wire stripping seat (51) facing the wire stripping knife (52), and a wire stripping through groove (12) communicating with the wire stripping grooves (511) is provided on the support handle (1).

2. A multifunctional crimping pliers according to claim 1, characterized in that: A positioning plug block (514) is fixedly provided on the wire stripping seat (51), and a positioning plug hole (13) for the positioning plug block (514) to be embedded and fixed is provided on the support handle (1).

3. The multifunctional crimping pliers according to claim 1, characterized in that: A protrusion (515) inserted into the wire stripping slot (12) is fixedly provided on the side of the wire stripping seat (51), and one side of the protrusion (515) is in contact with the inner wall of the wire stripping slot (12).

4. The multifunctional crimping pliers according to claim 1, characterized in that: A reset spring (53) is provided on the side of the support handle (1); a fixing groove (512) for the reset spring (53) to be embedded and fixed is provided on the side of the wire stripping seat (51) facing the wire stripping knife (52); the end of the reset spring (53) away from the wire stripping seat (51) is pressed against the side of the wire stripping knife (52) facing the wire stripping seat (51).

5. The multifunctional crimping pliers according to claim 1, characterized in that: The extension plate (11) is provided with a tangent notch (111) for inserting a cable, and a tangent knife (33) hinged to the pressing handle (2) is fixedly provided on the side surface of the gear ring (31), and a tangent blade (331) is fixedly provided on the tangent knife (33), and the tangent blade (331) can cut the cable in the tangent notch (111).

6. The multifunctional crimping pliers according to claim 5, characterized in that: A limiting rod (332) is fixedly provided on the side of the thread cutting knife (33), and an arc-shaped through groove (112) for the limiting rod (332) to be inserted is provided on the extension plate (11), and the limiting rod (332) can slide back and forth along the arc-shaped through groove (112).

7. The multifunctional crimping pliers according to claim 1, characterized in that: A first protective shell (6) is provided on the outside of the support handle (1), and a second protective shell (7) is provided on the outside of the pressing handle (2).

8. The multifunctional crimping pliers according to claim 7, characterized in that: A plurality of anti-slip grooves (61) are provided on the outer sides of the first protective shell (6) and the second protective shell (7).

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