A cable anti-drop connection structure for an electric welding pliers

Abstract

The present invention relates to a cable anti-detachment connection structure for an electric welding pliers, which comprises a handle, a cable connector and a conductor; a conductor installation groove is provided at the head of the handle, and a cable hole communicating with the conductor installation groove is provided at the body of the handle; a bolt hole four is provided at the tail of the conductor, and the conductor is fixedly installed in the conductor installation groove at the head of the handle; a bolt hole two is provided at the head of the cable connector, and two oppositely arranged clamping pieces and two oppositely arranged auxiliary clamping pieces for connecting a cable are provided at the body of the cable connector; after the cable connector is connected to the cable, it passes through the cable hole on the handle and reaches the conductor installation groove at the head of the handle, and the head of the cable connector is fixed to the tail of the conductor through a bolt two and a gasket. The present invention has the characteristics of simple operation when the electric welding pliers are connected to the cable, and the cable will not fall off from the conductor of the electric welding pliers during use.

Description

Technical Field

[0001] The present invention relates to the technical field of electric welding pliers, in particular to an anti-detachment connection structure for the cable of an electric welding plier. Background Art

[0002] When an electric welding plier is in use, it needs to be connected to a cable. Specifically, the cable is connected to the conductor on the electric welding plier. The existing connection method between the cable and the conductor on the electric welding plier is to use a compression bolt to tightly press one end of the cable core of the cable against the conductor on the electric welding plier, so that the cable core is attached and connected to the conductor on the electric welding plier. This existing connection method between the cable and the conductor on the electric welding plier has the following disadvantages: First, when connecting the electric welding plier to the cable, that is, when connecting one end of the cable core of the cable to the conductor on the electric welding plier, it is necessary to disassemble the conductor on the electric welding plier from the handle of the electric welding plier before the connection between one end of the cable core of the cable and the conductor on the electric welding plier can be carried out. Therefore, the connection operation between the cable and the electric welding plier is cumbersome and inconvenient; Second, since the connection between the cable and the conductor of the electric welding plier is a connection method in which a compression bolt tightly presses one end of the cable core of the cable against the conductor on the electric welding plier, the compression bolt is prone to looseness under the action of thermal stress during the use of the electric welding plier. Once the compression bolt loosens during the use of the electric welding plier, the cable will fall off from the conductor on the electric welding plier, which will cause a safety accident. Summary of the Invention

[0003] The object of the present invention is to provide an anti-detachment connection structure for the cable of an electric welding plier, which is aimed at the deficiencies of the existing compression bolt connection method between the cable and the conductor on the electric welding plier, such as cumbersome and inconvenient operation and easy loosening of the compression bolt. When connecting the electric welding plier to the cable, the operation is simple and it is not necessary to disassemble the conductor on the electric welding plier from the handle of the electric welding plier to connect one end of the cable core of the cable to the conductor on the electric welding plier; during the use of the electric welding plier, the cable will not fall off from the conductor on the electric welding plier.

[0004] The technical solution adopted for the object of the present invention is completed in the following way: An anti-detachment connection structure for the cable of an electric welding plier, the connection structure includes a handle, a cable connector and a conductor. A conductor installation groove is provided at the head of the handle. The body of the handle is tubular, and its tube hole is a cable hole, and the cable hole communicates with the conductor installation groove at the head of the handle. The conductor is installed in the conductor installation groove at the head of the handle. The cable connector is in a sheet-like structure, and the cable connector includes a head and a body. The cable connector is arranged in the cable hole adjacent to the installation groove at the head of the handle. The head of the cable connector is connected to the tail of the conductor, and the body of the cable connector is connected to the cable.

[0005] In the cable anti - detachment connection structure of the described electric welding pliers, the head of the cable connector and the tail of the conductor are fixedly connected together through a connector.

[0006] Preferably, the connector is bolt two.

[0007] Preferably, the head of the cable connector is provided with lugs, on which there are bolt holes two, and the tail of the conductor is provided with bolt holes four. The bolt two is inserted into the bolt holes two and four to tightly connect the cable connector and the conductor together.

[0008] Preferably, the lug of the cable connector with bolt holes two is at the bottom, and the tail of the conductor with bolt holes four is at the top.

[0009] Preferably, the bolt hole four of the conductor is a threaded hole that mates with the bolt two.

[0010] Preferably, a gasket is sleeved on the bolt two. Preferably, the gasket is an elastic gasket.

[0011] In the cable anti - detachment connection structure of the described electric welding pliers, the body part of the cable connector is a U - shaped cable clamping structure. Preferably, the cable clamping structure is composed of two clamping pieces.

[0012] Preferably, a number of small holes are provided on the clamping piece. Preferably, burrs are provided at the orifices of the small holes on the inner surface of the clamping piece.

[0013] Preferably, two sub - clamping pieces are provided at the tail of the clamping piece. Preferably, the width of the sub - clamping piece is smaller than the width of the clamping piece.

[0014] When the cable is connected to the cable connector, through the force applied by the clamping tool, the clamping piece on the body part of the cable connector tightly clamps the cable core of the cable, and the sub - clamping piece on the body part of the cable connector tightly clamps the cable sheath of the cable.

[0015] In the cable anti - detachment connection structure of the described electric welding pliers, the conductor is fixedly installed in the conductor installation groove at the head of the handle through a connector.

[0016] Preferably, the connector is bolt one.

[0017] Preferably, the head of the conductor is provided with bolt hole three, and at the front - side bottom of the conductor installation groove at the head of the handle, there is bolt hole one. The connecting bolt one is sequentially inserted into bolt hole one and bolt hole three to fixedly connect the conductor in the conductor installation groove at the head of the handle.

[0018] Preferably, the bolt hole three of the conductor is a threaded hole that mates with the bolt one.

[0019] In the cable anti - detachment connection structure of the electric welding pliers, a process hole facilitating the passage of the bolt two is provided at the bottom of the front side in the conductor mounting groove of the handle head.

[0020] Compared with the existing cable connection structure of the electric welding pliers, the cable anti - detachment connection structure of the electric welding pliers of the present invention has the characteristics that when connecting the electric welding pliers and the cable, the operation is simple, and it is not necessary to disassemble the conductor on the electric welding pliers from the handle of the electric welding pliers to connect the cable core at one end of the cable with the conductor of the electric welding pliers; the cable will not fall off from the conductor of the electric welding pliers during the use of the electric welding pliers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. is a schematic structural diagram of a cable anti - detachment connection structure of an electric welding pliers of the present invention.

[0022] Figure 2 FIG. is an exploded structural view of a cable anti - detachment connection structure of an electric welding pliers of the present invention.

[0023] Figure 3 FIG. is an exploded structural view between the cable and the cable connector of a cable anti - detachment connection structure of an electric welding pliers of the present invention.

[0024] Figure 4 FIG. is a schematic structural diagram of a cable connector of a cable anti - detachment connection structure of an electric welding pliers of the present invention.

[0025] Figure 5 FIG. is a schematic structural diagram of a conductor of a cable anti - detachment connection structure of an electric welding pliers of the present invention.

[0026] Figure 6 FIG. is a schematic structural diagram of a handle of a cable anti - detachment connection structure of an electric welding pliers of the present invention.

[0027] In FIGS. Figure 1 to FIGS. Figure 6 , 1 represents the handle; 1a represents the conductor mounting groove; 1a1 represents the bolt hole one; 1b represents the reset spring fixing hole; 1c represents the process hole; 1d represents the cable hole; 2 represents the cable connector; 2a represents the lug; 2a1 represents the bolt hole two; 2b represents the clamping piece; 2b1 represents the small hole; 2c represents the secondary clamping piece; 3 represents the conductor; 3a represents the bolt hole three; 3b represents the electrode holder slot; 3c represents the bolt hole four; 4 represents the cable; 4a represents the cable core; 4b represents the cable sheath; 5 represents the bolt one; 6 represents the bolt two; 7 represents the gasket. DETAILED DESCRIPTION OF THE INVENTION

[0028] The following further describes the present invention in detail with reference to the embodiments given in the accompanying drawings:

[0029] Referring to the attached Figure 1 to the attached Figure 6 , a cable anti - detachment connection structure of an electric welding pliers includes a handle 1, a cable connector 2, and a conductor 3. A conductor installation groove 1a is provided at the head of the handle 1, a return spring fixing hole 1b is provided at the body of the handle 1, the body of the handle 1 is tubular, and its tube hole is a cable hole 1d. The cable hole 1d communicates with the conductor installation groove 1a at the head of the handle 1. A welding rod clamping groove 3b is provided on the conductor 3, and the conductor 3 is installed in the conductor installation groove 1a at the head of the handle 1. The cable connector 2 is in a sheet - like structure, including a head and a body. The cable connector 2 is arranged in the cable hole 1d adjacent to the installation groove 1a at the head of the handle 1. The head of the cable connector 2 is connected to the tail of the conductor 3, and the body of the cable connector 2 is connected to the cable. Among them:

[0030] The head of the cable connector 2 and the tail of the conductor 3 are fixedly connected together by a second bolt 6 and an elastic gasket 7. Among them, the head of the cable connector 2 is provided with a lug 2a, and a second bolt hole 2a1 is provided on the lug 2a. A fourth bolt hole 3c is provided at the tail of the conductor 3. The second bolt hole 2a1 is a clearance hole, and the fourth bolt hole 3c is a threaded hole that mates with the second bolt 6. After the second bolt 6 is inserted into the second bolt hole 2a1, it mates with the fourth bolt hole 3c. By tightening the second bolt 6, the cable connector 2 and the conductor 3 are firmly connected together;

[0031] In order to facilitate the assembly of the second bolt 6, a process hole 1c for the second bolt 6 to pass through is provided at the front - side bottom in the conductor installation groove 1a at the head of the handle 1;

[0032] The body of the cable connector 2 is a U - shaped cable - clamping structure, which includes two oppositely arranged clamping pieces 2b and two oppositely arranged secondary clamping pieces 2c. Among them, a number of small holes 2b1 are provided on the clamping piece 2b, and burrs that can be embedded in the surface of the cable core 4a are provided at the orifice of the small holes 2b1 on the inner surface of the clamping piece 2b to improve the bonding force between the cable connector 2 and the cable core 4a. The width of the secondary clamping piece 2c is smaller than the width of the clamping piece 2b. When the cable 4 is connected to the cable connector 2, through the force applied by a clamping tool, the clamping piece 2b on the body of the cable connector 2 tightly clamps the cable core 4a of the cable 4, and the secondary clamping piece 2c on the body of the cable connector 2 tightly clamps the cable sheath 4b of the cable 4;

[0033] The conductor 3 is fixed in the conductor mounting groove 1a at the head of the handle 1 by a first bolt 5. Among them, a first bolt hole 1a1 is provided at the front bottom in the conductor mounting groove 1a at the head of the handle 1, a third bolt hole 3a is provided at the head of the conductor 3, the first bolt hole 1a1 is a clearance hole, the third bolt hole 3a is a threaded hole that mates with the first bolt 5, and after the first bolt 5 is inserted into the first bolt hole 1a1, it mates with the third bolt hole 3a. After tightening the first bolt 5, the conductor 3 is fastened in the conductor mounting groove 1a at the head of the handle 1.

[0034] The operation method of connecting a cable to the conductor of the electric welding pliers is as follows: First, strip a small section of the cable sheath 4b from the head of the cable 4; Then, apply a clamping force to the clamping piece 2b on the body of the cable connector 2 and the auxiliary clamping piece 2c through a clamping tool to fix the exposed cable core 4a at the head of the cable 4 on the front section of the body of the cable connector 2 and fix the cable sheath 4b at the head of the cable 4 on the end of the body of the cable connector 2; Next, insert the cable connector 2 connected to the cable 4 into the cable hole 1d of the handle 1 through the opening of the cable hole 1d at the rear end of the handle 1, pass through the cable hole 1d of the handle 1 and reach the rear side of the mounting groove 1a at the head of the handle 1; Finally, fix the head of the cable connector 2 on the tail of the conductor 3 by a second bolt 6 and a gasket 7.

[0035] The above are only the preferred embodiments of the present invention, but the scope of implementation of the present invention cannot be limited thereby. That is, all simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the invention description still fall within the scope covered by the patent of the present invention.

Claims

1. A cable anti - detachment connection structure for an electric welding pliers, characterized in that The connection structure includes a handle, a cable connector, and a conductor. A conductor mounting groove is provided at the head of the handle. The body of the handle is tubular, and its tube hole is a cable hole, which communicates with the conductor mounting groove at the head of the handle. The conductor is mounted in the conductor mounting groove at the head of the handle. The cable connector is in a sheet-like structure and includes a head and a body. The cable connector is disposed in the cable hole adjacent to the mounting groove at the head of the handle. The head of the cable connector is connected to the tail of the conductor, and the body of the cable connector is connected to the cable.

2. The cable anti - detachment connection structure of an electric welding pliers according to claim 1, characterized in that The head of the cable connector and the tail of the conductor are fixedly connected together through a connector.

3. The cable anti-detachment connection structure of an electric welding pliers according to claim 2, characterized in that The head of the cable connector is provided with a lug, and a second bolt hole is provided on the lug. The tail of the conductor is provided with a fourth bolt hole. The connector is a second bolt. The second bolt is inserted into the second bolt hole and the fourth bolt hole to tightly connect the cable connector and the conductor. The lug of the cable connector with the second bolt hole is at the bottom, and the tail of the conductor with the fourth bolt hole is at the top.

4. The cable anti-detachment connection structure of an electric welding pliers according to claim 3, characterized in that A gasket is sleeved on the second bolt, and the gasket is an elastic gasket.

5. The cable anti - detachment connection structure of an electric welding pliers according to claim 3, characterized in that A process hole for facilitating the passage of the second bolt is provided at the bottom of the front side in the conductor mounting groove at the head of the handle.

6. The cable anti-detachment connection structure of an electric welding pliers according to claim 1 or 2, characterized in that The body of the cable connector is a cable clamping structure in a U shape.

7. The cable anti-detachment connection structure of an electric welding pliers according to claim 6, characterized in that The cable clamping structure is composed of two clamping pieces. A number of small holes are provided on the clamping pieces, and burrs are provided at the orifices of the small holes on the inner surface of the clamping pieces.

8. The cable anti-detachment connection structure of an electric welding pliers according to claim 7, characterized in that Two sub-clamping pieces are provided at the tail of the clamping pieces, and the width of the sub-clamping pieces is smaller than the width of the clamping pieces.

9. The cable anti-detachment connection structure of an electric welding pliers according to claim 1 or 2, characterized in that The conductor is fixed in the conductor mounting groove at the head of the handle through a connector.

10. The cable anti-detachment connection structure of an electric welding pliers according to claim 9, characterized in that The head of the conductor is provided with a third bolt hole, and the bottom of the front side in the conductor mounting groove at the head of the handle is provided with a first bolt hole. The connector is a first bolt. The first bolt is inserted into the first bolt hole and the third bolt hole in sequence to fixedly connect the conductor in the conductor mounting groove at the head of the handle.

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