Scald-proof electric welding pliers

Abstract

The utility model provides a pair of anti-scalding electric welding pliers. The anti-scalding electric welding pliers comprise a copper conductor, a grip, a heat insulation cushion block and an upper pliers body, the heat insulation cushion block is fixed to the bottom of the front end of the grip, the copper conductor is fixed to the top of the heat insulation cushion block, and the upper clamp body is rotationally connected with the copper conductor. The copper conductor, the heat insulation cushion block and the grip are fastened into a whole through at least one screw, and a heat insulation structure is arranged between the screw and the grip; by the adoption of the structure, the heat insulation structure is arranged between the screw and the grip and can effectively prevent heat of a welding electrode from being conducted to the grip sequentially through the copper electric conductor and the screw, so that the situation that the grip located at the position of the screw is melted due to overheating can be effectively avoided, and damage to the welding clamp can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electric welding clamps, in particular to a pair of scalding-proof electric welding clamps. Background Art

[0002] The function of the welding clamp is to clamp the welding rod and conduct the welding current during welding; the welding clamps currently on the market mainly include a copper conductor, a handle, an insulating pad and an upper clamp body; the insulating pad is fixed to the bottom of the front end of the handle, the copper conductor is fixed to the top of the insulating pad, and the upper clamp body is rotatably connected to the copper conductor; the copper conductor, the insulating pad and the handle are fastened together by at least one screw; however, in the existing welding clamp structure, since the copper conductor and the screw are both metal parts, and the handle is usually a plastic part, and since there is no insulating structure between the screw and the handle, when the welding clamp is used, the heat from the welding rod will be sequentially conducted to the handle through the copper conductor and the screw, and over time, the handle at the screw will be overheated and melted, that is, the screw will not be able to reliably fix the handle, which will cause damage to the welding clamp. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a scalding-proof electric welding clamp, which can effectively prevent the handle located at the screw from being overheated and melted, thereby preventing the electric welding clamp from being damaged.

[0004] The utility model provides a scalding-proof electric welding pliers, comprising a copper conductor, a handle, a heat-insulating pad and an upper pliers body; the heat-insulating pad is fixed to the bottom of the front end of the handle, the copper conductor is fixed to the top of the heat-insulating pad, and the upper pliers body is rotatably connected to the copper conductor; the copper conductor, the heat-insulating pad and the handle are fastened together by at least one screw, and a heat-insulating structure is provided between the screw and the handle.

[0005] After adopting the above structure, the utility model provides a heat insulation structure between the screw and the handle. The heat insulation structure can effectively prevent the heat of the welding rod from being transferred to the handle through the copper conductor and the screw in sequence, thereby effectively avoiding the handle at the screw from being overheated and melted, and further avoiding damage to the welding clamp.

[0006] In one possible embodiment, the copper conductor, the thermal insulation pad and the handle are fastened together by two screws spaced apart from front to back, and a thermal insulation structure is provided between each screw and the handle; by adopting this structure, the copper conductor, the thermal insulation pad and the handle can be further reliably fixed together under the fastening action of the two screws, and since a thermal insulation structure is provided between each screw and the handle, the heat from the copper conductor can be effectively prevented from being transferred to the handle, thereby preventing the handle from being damaged by overheating.

[0007] In one possible embodiment, each thermal insulation structure includes a thermal insulation insert; the thermal insulation insert is embedded in the bottom of the handle, and a countersunk hole is provided on the inner side of the thermal insulation insert, and each screw can be rotatably inserted into the countersunk hole on the corresponding thermal insulation insert; a through hole corresponding to the screw is provided on the thermal insulation pad, and a threaded hole corresponding to the screw is provided on the copper conductor, and the screw portion of each screw is inserted into the through hole at the corresponding position and threadedly fastened with the threaded hole at the corresponding position; after adopting this thermal insulation structure, under the action of the thermal insulation insert, the thermal insulation insert can effectively isolate the heat transfer between the screw and the handle, that is, it can effectively prevent the heat from the copper conductor from being transferred to the handle through the screw, and thus can prevent the handle from being damaged by overheating; in addition, after the screw portion of the screw passes through the countersunk hole on the thermal insulation insert and the through hole on the thermal insulation pad in turn and is threadedly connected to the threaded hole on the copper conductor, reliable fastening of the copper conductor, the thermal insulation pad and the handle can be achieved.

[0008] In a possible embodiment, an embedding hole corresponding to each thermal insulation insert is provided on the handle, and each thermal insulation insert is embedded in the embedding hole at the corresponding position; by adopting this structure, the thermal insulation insert can be reliably embedded with the handle.

[0009] In one possible embodiment, an annular convex edge is provided on the outer wall of the lower end of each thermal insulation insert, and an annular step extending outward in the radial direction of the embedding hole is provided at the lower end of each embedding hole, and the annular convex edge is supported on the annular step; by adopting this structure, after the thermal insulation insert and the handle are embedded, the annular convex edge can be supported on the annular step, so that when the screws are used to tighten the copper conductor, the thermal insulation pad and the handle, the thermal insulation insert can be effectively prevented from being separated from the handle, that is, the reliability and firmness of the thermal insulation insert and the handle after embedding can be improved, that is, the reliability of the screws tightening the copper conductor, the thermal insulation pad and the handle can be improved.

[0010] In a possible implementation, the thermal insulation insert is made of mica material. The thermal insulation insert made of mica material has the advantages of good thermal insulation effect and low cost.

[0011] In one possible embodiment, the aperture of the through hole is larger than the outer diameter of the screw shaft portion of the screw, and the through hole and the screw shaft portion of the screw are clearance-matched; by adopting this structure, the heat on the screw can be further blocked from being transferred to the thermal insulation pad, thereby further preventing the heat from being transferred to the handle through the thermal insulation pad, that is, further preventing the handle from being damaged by overheating.

[0012] In one possible embodiment, a limiting groove is provided at the bottom of the thermal insulation pad, and the bottom of the front end of the handle is embedded in the limiting groove and abuts against the side wall of the limiting groove; by adopting this structure, when the handle and the thermal insulation pad are assembled, the bottom of the front end of the handle can be embedded in the limiting groove and abut against the side wall of the limiting groove, thereby realizing the limiting effect on the handle and the thermal insulation pad, that is, it can facilitate the assembly of the handle and the thermal insulation pad, and can improve the connection reliability of the handle and the thermal insulation pad after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic cross-sectional view of the utility model;

[0015] Figure 3 for Figure 2 Schematic diagram of the structure after enlarging point A in the middle. DETAILED DESCRIPTION

[0016] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of the present application and are not intended to limit the scope of protection of the embodiments of the present application. Those skilled in the art may adjust them as needed to suit specific application scenarios.

[0017] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0018] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0019] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] See also Figure 1-3As shown, an embodiment of the present application discloses an anti-scalding electric welding pliers, comprising a copper conductor 1, a handle 2, a thermal insulation pad 3 and an upper clamp body 4; the thermal insulation pad 3 is fixed to the bottom of the front end of the handle 2, the copper conductor 1 is fixed to the top of the thermal insulation pad 3, and the upper clamp body 4 is rotatably connected to the copper conductor 1; the copper conductor 1, the thermal insulation pad 3 and the handle 2 are fastened together by at least one screw 5, and an insulation structure is provided between the screw 5 and the handle 2.

[0021] The copper conductor 1, the thermal insulation pad 3 and the handle 2 are fastened together by two screws 5 spaced apart from front to back, and a thermal insulation structure is provided between each screw 5 and the handle 2. By adopting this structure, the copper conductor, the thermal insulation pad and the handle can be further reliably fixed together under the fastening action of the two screws, and since a thermal insulation structure is provided between each screw and the handle, the heat from the copper conductor can be effectively prevented from being transferred to the handle, thereby preventing the handle from being damaged by overheating.

[0022] Each thermal insulation structure includes a thermal insulation insert 6; the thermal insulation insert 6 is embedded in the bottom of the handle 2, and a countersunk hole 61 is provided on the inner side of the thermal insulation insert 6. Each screw 5 can be rotatably inserted into the countersunk hole 61 on the corresponding thermal insulation insert 6; a through hole 31 corresponding to the screw 5 is provided on the thermal insulation pad 3, and a threaded hole 11 corresponding to the screw 5 is provided on the copper conductor 1. The screw portion 51 of each screw 5 is inserted into the through hole 31 at the corresponding position and is threadedly fastened to the threaded hole 11 at the corresponding position. ; By adopting this thermal insulation structure, under the action of the thermal insulation insert, the thermal insulation insert can effectively isolate the heat transfer between the screw and the handle, that is, it can effectively prevent the heat from the copper conductor from being transferred to the handle through the screw, thereby preventing the handle from being overheated and damaged; in addition, after the screw portion of the screw passes through the countersunk hole on the thermal insulation insert and the through hole on the thermal insulation pad in sequence and is threadedly connected to the threaded hole on the copper conductor, the copper conductor, the thermal insulation pad and the handle can be reliably fastened.

[0023] The handle 2 is provided with an embedding hole 21 corresponding to each thermal insulation insert 6, and each thermal insulation insert 6 is embedded in the embedding hole 21 at the corresponding position; by adopting this structure, the thermal insulation insert can be reliably embedded with the handle.

[0024] An annular convex edge 62 is provided on the outer wall of the lower end of each thermal insulation insert 6, and an annular step 211 extending outward in the radial direction of the embedding hole 21 is provided at the lower end of each embedding hole 21, and the annular convex edge 62 is supported on the annular step 211; by adopting this structure, after the thermal insulation insert and the handle are embedded, the annular convex edge can be supported on the annular step, so that when the screws are tightened to the copper conductor, the thermal insulation pad and the handle, the thermal insulation insert can be effectively prevented from being separated from the handle, that is, the reliability and firmness of the thermal insulation insert and the handle after embedding can be improved, that is, the reliability of the screws tightening the copper conductor, the thermal insulation pad and the handle can be improved.

[0025] The heat-insulating insert 6 is made of mica material. The heat-insulating insert made of mica material has the advantages of good heat-insulating effect and low cost.

[0026] The aperture of the through hole 31 is larger than the outer diameter of the screw portion 51 of the screw 5, and the through hole 31 is loosely matched with the screw portion 51 of the screw 5; by adopting this structure, the heat on the screw can be further blocked from being transferred to the thermal insulation pad, thereby further preventing the heat from being transferred to the handle through the thermal insulation pad, that is, the handle can be further prevented from being damaged by overheating.

[0027] A limiting groove 32 is provided at the bottom of the thermal insulation pad 3, and the bottom of the front end of the handle 2 is embedded in the limiting groove 32 and abuts against the side wall of the limiting groove 32; by adopting this structure, when the handle and the thermal insulation pad are assembled, the bottom of the front end of the handle can be embedded in the limiting groove and abut against the side wall of the limiting groove, thereby realizing the limiting effect on the handle and the thermal insulation pad, that is, it can facilitate the assembly of the handle and the thermal insulation pad, and can improve the connection reliability of the handle and the thermal insulation pad after assembly.

[0028] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A scalding-proof electric welding pliers, comprising a copper conductor (1), a handle (2), a heat-insulating pad (3) and an upper clamp body (4); the heat-insulating pad (3) is fixed to the bottom of the front end of the handle (2), the copper conductor (1) is fixed to the top of the heat-insulating pad (3), and the upper clamp body (4) is rotatably connected to the copper conductor (1); the copper conductor (1), the heat-insulating pad (3) and the handle (2) are fastened together by at least one screw (5), characterized in that: A heat insulation structure is provided between the screw (5) and the handle (2).

2. The anti-scalding welding clamp according to claim 1, characterized in that: The copper conductor (1), the heat-insulating pad (3) and the handle (2) are fastened together by two screws (5) spaced apart from front to back, and a heat-insulating structure is provided between each screw (5) and the handle (2).

3. The anti-scalding welding tongs according to claim 1 or 2, characterized in that: Each of the thermal insulation structures includes a thermal insulation insert (6); the thermal insulation insert (6) is embedded in the bottom of the handle (2), and a countersunk hole (61) is provided on the inner side of the thermal insulation insert (6), and each of the screws (5) can be rotatably inserted into the countersunk hole (61) on the corresponding thermal insulation insert (6); a through hole (31) corresponding to the screw (5) is provided on the thermal insulation pad (3), and a threaded hole (11) corresponding to the screw (5) is provided on the copper conductor (1), and the screw portion (51) of each screw (5) is inserted into the through hole (31) at the corresponding position and is threadedly fastened with the threaded hole (11) at the corresponding position.

4. The anti-scalding welding clamp according to claim 3, characterized in that: The handle (2) is provided with an embedding hole (21) corresponding to each of the heat-insulating inserts (6), and each of the heat-insulating inserts (6) is embedded in the embedding hole (21) at the corresponding position.

5. The anti-scalding welding clamp according to claim 4, characterized in that: An annular convex edge (62) is provided on the outer wall of the lower end of each thermal insulation insert (6), and an annular step (211) extending outward in the radial direction of the embedding hole (21) is provided at the lower end of each embedding hole (21), and the annular convex edge (62) is supported on the annular step (211).

6. The anti-scalding welding clamp according to claim 3, characterized in that: The heat-insulating insert (6) is made of mica material.

7. The anti-scalding welding clamp according to claim 3, characterized in that: The diameter of the through hole (31) is larger than the outer diameter of the screw portion (51) of the screw (5), and the through hole (31) and the screw portion (51) of the screw (5) are clearance-matched.

8. The scald-proof welding tongs according to claim 1, characterized in that: A limiting groove (32) is provided at the bottom of the heat-insulating pad (3), and the bottom of the front end of the handle (2) is embedded in the limiting groove (32) and abuts against the side wall of the limiting groove (32).

Images