CN220527217U - Connection structure of grounding welding bolt and wire terminal - Google Patents

Abstract

The utility model provides a connection structure of ground connection welding bolt and wire terminal, includes ground connection bolt, binding post, rotatory gasket and nut, the ground connection bolt includes shaft part, nut, binding post is equipped with polygon center trepanning, nut and shaft part screw-thread fit, this nut is equipped with annular spout towards on the binding post terminal surface, rotatory gasket is equipped with and inserts in the annular spout and do turnover sliding fit's link, inserts the polygon lug of block in the polygon center trepanning and supplies the through-hole that the shaft part passed, the polygon lug is equipped with first friction protruding muscle towards on the one side terminal surface of nut. Through the mode that binding post pre-installs on the nut, compare after waiting that the grounding bolt welds, cover binding post earlier, the two step processes of back cover nut can be preassembled when welding, then screw in welding bolt together, have shown simplified assembly process, have improved assembly efficiency. Meanwhile, the situation that the wiring terminal rotates along is avoided in the assembly process and after the assembly process is finished.

Description

Connection structure of grounding welding bolt and wire terminal

Technical Field

The utility model relates to the technical field of grounding bolts, in particular to a connecting structure of a grounding welding bolt and a wire terminal.

Background

Automobiles and some machinery often use ground terminals due to electrical design requirements, the most common ground terminals being ground weld bolts and their mating component nuts.

When the conventional grounding bolt assembly is installed and used, firstly, the bolts are welded on a plate, the nuts are opened, the wire terminals are placed in the nuts, and then the nuts are screwed down. However, the phenomena of rotation following, incapacity of orientation and the like of the terminal occur in the process of assembling the screw nut.

To solve this problem, it is common practice to add a plastic piece for anti-rotation and orientation, but this increases the complexity and cost of the assembly process.

Disclosure of Invention

In order to solve the defects of the technology, the utility model provides a connecting structure of a grounding welding bolt and a lead terminal, wherein the whole frame is embedded with a color steel plate for sealing, parts for maintenance and replacement need to enter from an auxiliary machine, and only conventional operation control is reserved in an operation room.

The technical scheme of the utility model is as follows: the utility model provides a connection structure of ground connection welding bolt and wire terminal, includes ground connection bolt, binding post, rotatory gasket and nut, the ground connection bolt includes shaft part, nut, binding post is equipped with polygon center trepanning, nut and shaft part screw-thread fit, this nut is equipped with annular spout towards on the binding post terminal surface, rotatory gasket is equipped with and inserts in the annular spout and do turnover sliding fit's link, inserts the polygon lug of block in the polygon center trepanning and supplies the through-hole that the shaft part passed, the polygon lug is equipped with first friction protruding muscle towards on the one side terminal surface of nut.

By adopting the technical scheme, in the welding process of the grounding bolt and the plate, the nut and the grounding bolt are in a state of being separated in advance, the polygonal center sleeve hole of the conductive terminal is sleeved on the polygonal convex block of the rotating gasket of the nut, so that the conductive terminal can be assembled together with the nut, the diameter of the through hole of the rotating gasket is larger than that of the shaft part, the through hole is not influenced by the rotation of the threaded fit, and the rotating gasket can slide relative to the nut in the circumferential direction when the nut is rotated and fed, so that the wiring terminal can not rotate with the nut in the assembling process, and the stability of the wiring terminal is kept.

When the nut rotates to the bottom, the polygonal protruding blocks of the rotary gaskets are contacted with the nut, and under the axial pressure of the nut and the circumferential friction clamping of the friction protruding ribs and the nut, the lead terminals are pressed and fixed after the nut is assembled in place, and the turnover displacement is not generated.

The utility model is further provided with: the cross section of the annular chute is T-shaped, and the contour of the connecting end of the rotary gasket is matched with the annular chute.

By adopting the technical scheme, through the clamping of the T-shaped groove, the turnover sliding is kept, and the axial movement is limited.

The utility model is further provided with: the nut is provided with a second friction convex rib staggered with the first friction convex rib or a convex rib groove matched with the first friction convex rib.

By adopting the technical scheme, the second friction convex rib or the convex rib groove is arranged to be in contact with the side face of the first friction convex rib, or is in direct concave-convex clamping, so that the following rotation preventing capacity of the wiring terminal is further enhanced.

The utility model is further provided with: the end face of the nut, which is far away from the shaft part, is provided with a welding end part, the axial length of the nut is matched with the length of the shaft part of the grounding bolt, and the end cover which is detachably clamped is arranged at the hole opening of the screw, which is far away from one side of the nut.

The utility model is further provided with: the grounding bolt, the wiring terminal, the rotary gasket, the end cover and the nut are all made of aluminum alloy materials.

The utility model has the beneficial effects that: through the mode that binding post pre-installs on the nut, compare after waiting that the grounding bolt welds, cover binding post earlier, the two step processes of back cover nut can be preassembled when welding, then screw in welding bolt together, have shown simplified assembly process, have improved assembly efficiency. Meanwhile, the situation that the wiring terminal rotates along is avoided in the assembly process and after the assembly process is finished.

Drawings

FIG. 1 is a block diagram of FIG. 1 of an embodiment of the present utility model;

FIG. 2 is a block diagram of FIG. 2 in accordance with an embodiment of the present utility model;

FIG. 3 is a block diagram of FIG. 3 in accordance with an embodiment of the present utility model;

fig. 4 is a cross-sectional view of an embodiment of the present utility model.

The novel electric welding device comprises a 1-grounding bolt, an 11-shaft part, a 12-nut, a 13-welding end part, a 2-wiring terminal, a 21-polygonal central sleeve hole, a 3-rotating gasket, a 31-connecting end, a 32-polygonal protruding block, a 33-through hole, a 34-first friction convex rib, a 4-nut, a 41-annular chute and a 42-end cover.

For the purpose of better illustrating the present embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions, and furthermore, the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Detailed Description

In order to make the technical solution of the present application and the advantages thereof more apparent, the technical solution of the present application will be more fully described in detail below with reference to the accompanying drawings, it being understood that the specific embodiments described herein are only some of the embodiments of the present application, which are for explanation of the present application, not for limitation of the present application. It should be noted that, for convenience of description, only the portion relevant to the present application is shown in the drawings, and other relevant portions may refer to a general design, and without conflict, the embodiments and technical features in the embodiments may be combined with each other to obtain new embodiments.

The utility model will now be described in detail with reference to the accompanying drawings, as shown in figures 1-4,

the utility model provides a connection structure of ground connection welding bolt and wire terminal, includes ground connection bolt 1, binding post 2, rotatory gasket 3 and nut 4, ground connection bolt 1 includes shaft portion 11, nut 12, binding post 2 is equipped with polygon center trepanning 21, nut 4 and shaft portion 11 screw-thread fit, and this nut 4 is equipped with annular spout 41 towards on the binding post 2 terminal surface, rotatory gasket 3 is equipped with and inserts annular spout 41 in doing turnover sliding fit's link 31, inserts polygon lug 32 of block in the polygon center trepanning 21, and supplies the through-hole 33 that shaft portion 11 passed, polygon lug 32 is equipped with first friction bead 34 towards on the terminal surface of one side of nut 4.

In the welding process of the grounding bolt 1 and the plate, the nut 4 and the grounding bolt 1 are in a pre-separated state, the polygonal central sleeve hole 21 of the conductive terminal is sleeved on the polygonal convex block 32 of the rotary gasket 3 of the nut 4 to be in pre-assembled friction clamping, so that the conductive terminal can be assembled together with the nut 4, the diameter of the through hole 33 of the rotary gasket 3 is larger than that of the shaft part 11, the conductive terminal is not influenced by screw thread matching rotation, and the rotary gasket 3 can slide circumferentially relative to the nut 4 during turnover rotary feeding of the nut 4, so that the wiring terminal 2 cannot be in contact with the rotary nut 4 in the assembling process, and the conductive terminal is kept stable.

When the nut 4 rotates to the bottom, the polygonal protruding block 32 of the rotary gasket 3 is contacted with the nut 12, and under the axial pressure of the nut 12 and the circumferential friction clamping of the friction protruding rib and the nut 12, the lead terminal is pressed and fixed after the nut 4 is assembled in place, and the turnover displacement is not generated.

The cross section of the annular chute 41 is T-shaped, and the contour of the connecting end 31 of the rotary gasket 3 is matched with the annular chute 41.

The T-shaped groove is clamped, so that the turnover sliding is kept, and the axial movement is limited.

The nut 12 is provided with second friction ribs which are staggered with the first friction ribs 34 or ribs grooves which are matched with the first friction ribs 34.

The second friction rib or rib groove is arranged to abut against the side surface of the first friction rib 34 or is directly clamped in a concave-convex manner, so that the following rotation preventing capability of the wiring terminal 2 is further enhanced.

The end face of the nut 4 far away from the shaft part 11 is provided with a welding end part 13, the axial length of the nut 4 is matched with the length of the shaft part 11 of the grounding bolt 1, and the end cover 42 which is detachably clamped is arranged at a screw hole opening of one side of the nut 12 far away from the nut 12.

The grounding bolt 1, the wiring terminal 2, the rotary gasket 3, the end cover 42 and the nut 4 are all made of aluminum alloy materials.

Through the mode that binding post 2 preassembles on nut 4, compare and overlap binding post 2 earlier after equal grounding bolt 1 welds, the two step processes of back cover nut 4 can preassemble when welding, then screw in welding bolt altogether, have shown simplified assembly process, have improved assembly efficiency. Meanwhile, the situation that the wiring terminal 2 rotates along is avoided in the assembly process and after the assembly process is finished.

Having thus described the technical aspects of the present application with reference to the preferred embodiments illustrated in the accompanying drawings, it should be understood by those skilled in the art that the scope of the present application is not limited to the specific embodiments, and those skilled in the art may make equivalent changes or substitutions to the relevant technical features without departing from the principles of the present application, and those changes or substitutions will now fall within the scope of the present application.

Claims (5)

1. The utility model provides a connection structure of ground connection welding bolt and wire terminal which characterized in that: the connecting device comprises a grounding bolt, a connecting terminal, a rotary gasket and a nut, wherein the grounding bolt comprises a shaft part and a nut, the connecting terminal is provided with a polygonal central sleeve hole, the nut is in threaded fit with the shaft part, an annular chute is formed in the end face of the nut, which faces the connecting terminal, the rotary gasket is provided with a connecting end which is inserted into the annular chute and is in turnover sliding fit, a polygonal protruding block which is inserted into the polygonal central sleeve hole and a through hole which is used for the shaft part to pass through, and a first friction protruding rib is arranged on the end face of one side of the polygonal protruding block, which faces the nut.

2. The connection structure of a grounding welding bolt and a wire terminal according to claim 1, wherein: the cross section of the annular chute is T-shaped, and the contour of the connecting end of the rotary gasket is matched with the annular chute.

3. The connection structure of a ground welding bolt and a wire terminal according to claim 1 or 2, characterized in that: the nut is provided with a second friction convex rib staggered with the first friction convex rib or a convex rib groove matched with the first friction convex rib.

4. A connection structure of a ground weld bolt and a wire terminal according to claim 3, wherein: the end face of the nut, which is far away from the shaft part, is provided with a welding end part, the axial length of the nut is matched with the length of the shaft part of the grounding bolt, and the end cover which is detachably clamped is arranged at the hole opening of the screw, which is far away from one side of the nut.

5. The connection structure of a grounding welding bolt and a wire terminal according to claim 4, wherein: the grounding bolt, the wiring terminal, the rotary gasket, the end cover and the nut are all made of aluminum alloy materials.