A full-insulation plier

Abstract

The application relates to a full-insulation pliers, comprising a first pliers body and a second pliers body, the first pliers body comprising a first pliers head, a first connecting part and a first pliers handle, the second pliers body comprising a second pliers head, a second connecting part and a second pliers handle, the first pliers head and the second pliers head being matched to form a pliers head area, the first connecting part and the second connecting part being hingedly matched, the first pliers handle and the second pliers handle being coated with an insulation layer, and the first pliers head and the second pliers head being clamped with an insulation shell. The application can reduce the possibility of damaging high-integration electronic components when the pliers are inevitably knocked against the electronic components, and can improve the safety when the pliers touch the electronic components in an electrified state.

Description

Technical Field

[0001] This application relates to the field of pliers, and more particularly to a fully insulated pliers. Background Technology

[0002] Whether it's the manufacturing and repair of various types of electric and new energy vehicles, or electronic products and precision equipment, for various reasons, it's impossible to completely disconnect the power supply. Therefore, when using tools to repair these live production equipment, it's necessary to ensure the electrical insulation performance of the tools to improve safety.

[0003] For example, Chinese utility model patent CN219203955U discloses a pair of needle-nose pliers with wire stripping and crimping functions, comprising: an upper plier head; a lower plier head located at the bottom of the upper plier head; rotating blocks fixedly connected to the right sides of both the upper and lower plier heads; the upper and lower plier heads being rotatably connected via the rotating blocks; upper teeth fixedly connected to the bottom of the upper plier head; lower teeth fixedly connected to the upper end of the lower plier head, with the upper and lower teeth interlaced; an upper pressing groove formed at the bottom of the upper plier head; and a lower pressing groove formed at the upper end of the lower plier head, with the lower pressing groove matching the upper pressing groove. Furthermore, an upper leather sleeve is fitted onto the outer side of the upper plier bar, with an upper anti-slip groove formed at the upper end of the upper leather sleeve; and a lower leather sleeve is fitted onto the outer side of the lower plier bar.

[0004] The aforementioned needle-nose pliers, by incorporating a sheath on the pliers bar, provide a certain level of insulation. Of course, further adjustments, such as using a more durable insulating material for the sheath, can further enhance the overall insulation performance of the pliers. In fact, insulating the pliers bar is a common insulation method. However, the increasingly complex electrical maintenance scenarios place higher demands on pliers. For example, the highly integrated electronic components in new energy vehicles mean that when using pliers for maintenance, it's difficult to avoid touching or even bumping into surrounding wires, cables, and electrical and electronic components. If these components are energized, it can easily lead to unpredictable safety accidents.

[0005] Therefore, there is an urgent need for a type of clamp tool that is suitable for more complex application scenarios and has better insulation performance. Utility Model Content

[0006] In order to obtain a type of clamp tool that is suitable for more complex application scenarios and has better insulation performance, this application provides a fully insulated clamp.

[0007] The fully enclosed insulating clamp provided in this application adopts the following technical solution: A fully insulated clamp includes a first clamp body and a second clamp body. The first clamp body includes a first jaw, a first connecting part, and a first handle. The second clamp body includes a second jaw, a second connecting part, and a second handle. The first jaw and the second jaw cooperate to form a jaw area. The first connecting part and the second connecting part are hinged together. Both the first handle and the second handle are covered with an insulating layer. An insulating shell is snapped onto both the first jaw and the second jaw.

[0008] Optionally, both the first jaw and the second jaw are provided with at least one slot, and the inner wall of the insulating shell is provided with at least one locking post that engages with the slot.

[0009] Optionally, the end of the locking post facing away from the insulating shell has a chamfer, and the length of the locking post is 0.5-2mm.

[0010] Optionally, the inner cavity thickness of the insulating shell is greater than the thickness of the first jaw and the second jaw, and the difference in thickness is 0.2-0.5 mm, wherein the difference in thickness is not greater than 0.5 times the length of the clamping post.

[0011] Optionally, one end of the insulating shell is connected to an insulating cover plate, which covers the first connecting portion or the second connecting portion.

[0012] Optionally, the inner wall of the insulating cover is provided with at least one stabilizing post, and at least one stabilizing groove is provided on the first connecting part and the second connecting part, and the stabilizing groove is engaged with the stabilizing post.

[0013] Optionally, an insulating cover is connected to one end of the insulating cover away from the insulating shell, and the insulating cover covers the connection between the first connecting part and the first clamp handle or the connection between the second connecting part and the second clamp handle.

[0014] Optionally, a gap of 0.1-0.5 mm is provided between the end of the insulating cover away from the insulating cover plate and the insulating layer.

[0015] Optionally, an anti-slip layer is provided on the opposite side of the insulating layer covering the first and second clamp handles.

[0016] In summary, this application includes at least one of the following beneficial technical effects: Compared to the commonly used method of only covering the handles with an insulating layer, the fully insulated pliers in this application have an additional insulating shell attached to the first and second jaws. On the one hand, the insulating shell, which is less hard than metal, can reduce the possibility of damage to highly integrated electronic components caused by the inevitable bumps during use. On the other hand, it can improve safety when the pliers touch energized electronic components. Compared to the currently common, cumbersome, and more polluting impregnation process, the insulating shell in this application can be injection molded first and then snapped onto the first and second jaws, which greatly reduces the difficulty of production and assembly and reduces production costs. By using the slot and the post to work together, and controlling the length of the post to not exceed 2mm, the ease of installation of the insulating shell is improved, making it easier for the post to be inserted into the slot. The length of the post is controlled to be not less than 0.5mm to ensure the installation stability of the insulating shell and reduce the possibility of the post coming out. By further controlling the inner cavity thickness of the insulating shell and the thickness of the first and second jaws, the insulation shell is made slightly thicker (greater than 0.2mm) to facilitate its installation, while the difference between the two thicknesses is no more than 0.5mm to prevent the insulation shell from becoming too loose after installation. Furthermore, the difference between the two thicknesses is no more than 0.5 times the length of the clamping post to ensure that at least part of the clamping post is engaged in the clamping slot after the insulation shell is installed, thus preventing the insulation shell with a certain gap from easily falling off after installation. By further adding an insulating cover, the first and second connecting parts can be insulated and covered, and the further added insulating cover can insulate and cover the connection between the connecting part and the handle, thus further insulating and covering the entire pair of pliers. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0018] Figure 2 This is a cross-sectional view of the overall structure of Embodiment 1 of this application.

[0019] Figure 3 This is a schematic diagram of the anti-slip layer in Embodiment 1 of this application.

[0020] Figure 4 This is a schematic diagram of the overall structure of Embodiment 1 of this application, and the insulating clamp in the figure does not have an insulating shell, insulating cover plate and insulating shield.

[0021] Figure 5 This is a schematic diagram of the structure of the insulating shell, insulating cover and insulating shield of Embodiment 1 of this application.

[0022] Figure 6 This is a partial structural schematic diagram of Embodiment 1 of this application, and the first clamp body in the figure is not covered with insulation.

[0023] Figure 7 This is a schematic diagram of another feasible embodiment of this application, the difference being that the jaw area functions differently. In this figure, the jaws of needle-nose pliers and the jaws of curved-nose pliers of different sizes are shown.

[0024] Figure 8This is a schematic diagram of another feasible embodiment of this application, the difference being that the jaw area functions differently. The diagram shows the jaws of wire cutters of different sizes.

[0025] Figure 9 This is a schematic diagram of another feasible embodiment of this application, the difference being that the jaws have different functions. In this figure, they are respectively the jaws of flat-nose pliers, wire strippers, and wire cutters.

[0026] Figure 10 This is a schematic diagram of another feasible embodiment of this application, the difference being that the shapes of the card slot and the card post are different.

[0027] Explanation of reference numerals in the attached drawings: 1. First clamp body; 11. First jaw; 12. First connecting part; 13. First handle; 2. Second clamp body; 21. Second jaw; 22. Second connecting part; 23. Second handle; 3. Insulating layer; 31. Anti-slip layer; 4. Insulating outer shell; 41. Slot; 42. Slot; 5. Insulating cover; 51. Stabilizing post; 52. Stabilizing groove; 6. Insulating protective cover. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-9 This application will be described in further detail. Example

[0029] This application discloses a fully insulated clamp, including a first clamp body 1 and a second clamp body 2. The first clamp body 1 includes a first jaw 11, a first connecting part 12, and a first handle 13. The second clamp body 2 includes a second jaw 21, a second connecting part 22, and a second handle 23. Both the first clamp body 1 and the second clamp body 2 are made of metal, such as steel, and are integrally cast.

[0030] The first jaw 1 and the second jaw 2 are hinged together by the first connecting part 12 and the second connecting part 22, thereby forming a jaw area at the positions of the first jaw 11 and the second jaw 21. In this embodiment, the first jaw 11 and the second jaw 21 form the jaws of needle-nose pliers. Of course, depending on actual needs, the first jaw 11 and the second jaw 21 can form the jaws of pliers with different functions, such as... Figure 7 The images show larger-sized needle-nose pliers jaws and different-sized curved-nose pliers jaws. Figure 8 The different sizes of wire cutter jaws shown are as follows: Figure 9 The jaws shown are those of flat-nose pliers, wire strippers, and wire cutters.

[0031] To ensure the insulation performance of the insulated pliers, in this embodiment, both the first pliers handle 13 and the second pliers handle 23 are covered with an insulating layer 3. On the side opposite to the insulating layer 3 covering the first pliers handle 13 and the second pliers handle 23, there is an anti-slip layer 31. The hardness of the anti-slip layer 31 is lower than that of the insulating layer 3, so as to better prevent slipping during use.

[0032] To further ensure the insulation performance of the jaw area formed by the first jaw 11 and the second jaw 21, an insulating shell 4 is snapped onto both the first jaw 11 and the second jaw 21. To facilitate the installation of the insulating shell 4, in this embodiment, the inner thickness of the insulating shell 4 is greater than the thickness of the first jaw 11 and the second jaw 21, and the difference in thickness is not less than 0.2 mm. To prevent the insulating shell 4 from becoming too loose or easily falling off after installation, the difference in thickness is not greater than 0.5 mm. To improve the installation stability of the insulating shell 4, slots 41 are provided on both side walls of the first jaw 11 and the second jaw 21. The inner wall of the insulating shell 4 is provided with at least one locking post 42 that engages with the slot 41. The end of the locking post 42 facing away from the insulating shell 4 has a chamfered circumferential angle, and the length of the locking post 42 is 0.5-2 mm. It should be noted that, to prevent the thicker insulating shell 4 from detaching after installation, the difference between the inner cavity thickness of the insulating shell 4 and the thickness of the first jaw 11 and the second jaw 21 should not exceed 0.5 times the length of the locking post 42. In this embodiment, the locking post 42 is approximately cylindrical, and the shape of the locking groove 41 is adapted to the locking post 42 for engagement. Of course, it is understood that the shapes of the locking groove 41 and the locking post 42 do not necessarily have to be cylindrical. In some feasible embodiments, the cross-sectional shape of the locking post 42 can be triangular, square, rectangular, trapezoidal, elliptical, etc. Figure 10 The document demonstrates several other feasible approaches, but is not limited to these.

[0033] Furthermore, an insulating cover plate 5 is connected to one end of the insulating outer shell 4, covering either the first connecting part 12 or the second connecting part 22. The inner wall of the insulating cover plate 5 is provided with at least one stabilizing post 51, and at least one stabilizing groove 52 is formed on the first connecting part 12 and the second connecting part 22, engaging with the stabilizing post 51. An insulating shield 6 is connected to the end of the insulating cover plate 5 facing away from the insulating outer shell 4, covering the connection between the first connecting part 12 and the first clamp handle 13 or the connection between the second connecting part 22 and the second clamp handle 23. A gap of 0.1-0.5 mm is provided between the end of the insulating shield 6 facing away from the insulating cover plate 5 and the insulating layer 3.

[0034] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A fully enclosed insulating clamp, characterized in that: The clamp includes a first clamp body (1) and a second clamp body (2). The first clamp body (1) includes a first jaw (11), a first connecting part (12) and a first handle (13). The second clamp body (2) includes a second jaw (21), a second connecting part (22) and a second handle (23). The first jaw (11) and the second jaw (21) cooperate to form a jaw area. The first connecting part (12) and the second connecting part (22) are hinged together. The first handle (13) and the second handle (23) are both covered with an insulating layer (3). The first jaw (11) and the second jaw (21) are both snapped with an insulating shell (4).

2. The fully enclosed insulating clamp according to claim 1, characterized in that: The first jaw (11) and the second jaw (21) are each provided with at least one slot (41), and the inner wall of the insulating shell (4) is provided with at least one locking post (42) that engages with the slot (41).

3. The fully enclosed insulating pliers according to claim 2, characterized in that: The end of the locking post (42) facing away from the insulating shell (4) has a chamfer in the circumference, and the length of the locking post (42) is 0.5-2mm.

4. The fully enclosed insulating pliers according to claim 3, characterized in that: The inner cavity thickness of the insulating shell (4) is greater than the thickness of the first jaw (11) and the second jaw (21) and the difference in thickness is 0.2-0.5 mm. The difference in thickness is not greater than 0.5 times the length of the clamping post (42).

5. A fully enclosed insulating clamp according to any one of claims 2-4, characterized in that: An insulating cover plate (5) is connected to one end of the insulating shell (4), and the insulating cover plate (5) covers the first connecting part (12) or the second connecting part (22).

6. The fully enclosed insulating pliers according to claim 5, characterized in that: The inner wall of the insulating cover plate (5) is provided with at least one stabilizing post (51), and at least one stabilizing groove (52) is provided on the first connecting part (12) and the second connecting part (22), and the stabilizing groove (52) is engaged with the stabilizing post (51).

7. A fully enclosed insulating clamp according to claim 5, characterized in that: The insulating cover (5) is connected to an insulating shield (6) at one end away from the insulating shell (4). The insulating shield (6) covers the connection between the first connecting part (12) and the first clamp handle (13) or the connection between the second connecting part (22) and the second clamp handle (23).

8. A fully enclosed insulating clamp according to claim 7, characterized in that: The insulating cover (6) has a gap of 0.1-0.5 mm between the end facing away from the insulating cover plate (5) and the insulating layer (3).

9. A fully enclosed insulating clamp according to claim 1, characterized in that: The insulating layer (3) covering the first clamp handle (13) and the second clamp handle (23) is provided with an anti-slip layer (31) on the opposite side.

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