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CN-224232954-U - Grounding bolt assembly for automobile ultrathin steel plate

CN224232954UCN 224232954 UCN224232954 UCN 224232954UCN-224232954-U

Abstract

The utility model belongs to the technical field of grounding bolts, and particularly relates to a grounding bolt assembly for an automobile ultrathin steel plate, which comprises the following components: the nut pair is arranged at the middle of the screw, a bolt head is fixedly arranged at the lower end of the screw, a nut is arranged at the upper end of the screw in a threaded manner, a connector lug is arranged between the nut and the nut pair, a first reaming block is fixedly arranged on one side of the nut pair, the screw is in threaded connection with the first reaming block, and a plurality of first ribs which are uniformly distributed are fixedly arranged on the outer wall of the first reaming block. According to the utility model, the second reaming block is inserted into the hole on the connector lug by tightening the nut, the oxide layer at the hole of the connector lug is scraped off under the extrusion rotation of the second rib and the second reaming block, and the connector lug and the second reaming block can be tightly attached to each other, so that good conductivity is maintained.

Inventors

  • ZOU ZHIBIN

Assignees

  • 江西景隆机械有限公司

Dates

Publication Date
20260512
Application Date
20250610

Claims (7)

  1. 1. A grounding bolt assembly for an automotive ultrathin steel sheet, comprising: The screw rod (7), nut pair (6) is installed to screw thread in the middle part of screw rod (7), bolt head (4) are installed to screw rod (7) lower extreme, nut (1) is installed to screw thread in screw rod (7) upper end, be provided with connector lug (5) between nut (1) and nut pair (6); The first reaming block (10), the first reaming block (10) is fixedly arranged on one side of the nut pair (6), the screw (7) is in threaded connection with the first reaming block (10), and a plurality of first ribs (11) which are uniformly distributed are fixedly arranged on the outer wall of the first reaming block (10); The two wax injection grooves (13) are respectively arranged on opposite sides of the nut pair (6) and the bolt head (4), and the inner walls of the two wax injection grooves (13) are respectively sleeved with a second rubber ring (9); The protection component is arranged at the other end of the nut pair (6) and is used for protecting the whole nut pair (6); and the reaming assembly is arranged at the bottom of the nut (1) and used for enlarging the opening hole on the joint (5).
  2. 2. The grounding bolt assembly for an automotive ultrathin steel plate according to claim 1, wherein the protection assembly comprises a protection cover (2), the protection cover (2) is arranged between a nut (1) and a nut pair (6), and a first rubber ring (8) is fixedly arranged at the bottom of the protection cover (2).
  3. 3. The grounding bolt assembly for an automotive ultrathin steel plate according to claim 1, wherein the reaming assembly comprises a second reaming block (16), the second reaming block (16) is fixedly arranged at the bottom of the nut (1), the second reaming block (16) is in threaded connection with the screw (7), and a plurality of second ribs (17) which are uniformly distributed are fixedly arranged on the outer wall of the second reaming block (16).
  4. 4. The grounding bolt assembly for the automobile ultrathin steel plate according to claim 1, wherein sealing wax is arranged in gaps between the two second rubber rings (9) and the two wax injection grooves (13), a plurality of uniformly distributed strip-shaped grooves are arranged on the outer side walls of the two second rubber rings (9), and the cross sections of the wax injection grooves (13) and the second rubber rings (9) are trapezoidal.
  5. 5. The grounding bolt assembly for an automotive ultrathin steel sheet according to claim 1, wherein an automotive shell steel sheet (3) is arranged between the nut pair (6) and the bolt head (4).
  6. 6. The grounding bolt assembly for the automobile ultrathin steel plate according to claim 1, wherein an adapting groove (12) is formed in one side, close to the nut pair (6), of the bolt head (4), and the adapting groove (12) is sleeved with the first reaming block (10).
  7. 7. The grounding bolt assembly for the automobile ultrathin steel plate according to claim 1, wherein the top of the nut pair (6) is provided with a mounting groove (14), the open end of the connector lug (5) penetrates through the protective cover (2) and is mounted in the mounting groove (14), the upper end of a threaded hole of the nut pair (6) is provided with a chamfer (15), and the chamfer (15) is sleeved with the second reaming block (16).

Description

Grounding bolt assembly for automobile ultrathin steel plate Technical Field The utility model belongs to the technical field of grounding bolts, and particularly relates to a grounding bolt assembly for an automobile ultrathin steel plate. Background The grounding bolt is a bolt for fastening a negative wire harness (i.e., a connector lug) in an automotive electrical system to a vehicle body, and plays an important role in an automotive circuit. But the current ground bolt is poor with the junction leakproofness of car casing steel sheet, and the moisture in the air causes the junction easily to erode for conductivity is variation, and secondly, the connector lug can expose in the air in the production and the in-process of preserving for the surface can form the oxide layer, thereby influences conductivity. In view of this, we propose a grounding bolt assembly for automotive ultrathin steel sheets. Disclosure of utility model The utility model aims to provide a grounding bolt assembly for an automobile ultrathin steel plate, which is used for solving the problems in the background art. In view of the above, the utility model provides a grounding bolt assembly for an automobile ultrathin steel plate, which comprises a screw, wherein a nut pair is arranged in the middle of the screw in a threaded manner, a bolt head is fixedly arranged at the lower end of the screw, a nut is arranged in the upper end of the screw in a threaded manner, and a connector lug is arranged between the nut and the nut pair; The first reaming block is fixedly arranged on one side of the nut pair, the screw rod is in threaded connection with the first reaming block, and a plurality of first ribs which are uniformly distributed are fixedly arranged on the outer wall of the first reaming block; The two wax injection grooves are respectively arranged on opposite sides of the nut pair and the bolt head, and the inner walls of the two wax injection grooves are respectively sleeved with a second rubber ring; The protection component is arranged at the other end of the nut pair and is used for protecting the whole nut pair; And the reaming assembly is arranged at the bottom of the nut and used for enlarging the hole on the wiring head. In the above technical scheme, further, the protection component includes the safety cover, the safety cover is installed between nut and nut pair, safety cover bottom fixed mounting has first rubber circle. In the above technical scheme, further, the reaming subassembly includes the second reaming piece, second reaming piece fixed mounting is in the bottom of nut, and second reaming piece and screw rod threaded connection, second reaming piece outer wall fixed mounting has a plurality of evenly distributed's second arris. In the above technical scheme, further, two clearance between second rubber circle and the two wax injection grooves all is provided with sealing wax, two the lateral wall of second rubber circle all is equipped with a plurality of evenly distributed's bar groove, the cross section of wax injection groove and second rubber circle is trapezoidal. In the above technical scheme, further, an automobile shell steel plate is arranged between the nut pair and the bolt head. In the above technical scheme, further, an adaptation groove is formed in one side, close to the nut pair, of the bolt head, and the adaptation groove is sleeved with the first reaming block. In the above technical scheme, further, the mounting groove has been seted up at the vice top of nut, the trompil end of connector lug runs through the safety cover and installs in the mounting groove, the upper end of the vice screw hole of nut is equipped with the chamfer, the chamfer cup joints with the second reaming piece. The beneficial effects of the utility model are as follows: 1. This a grounding bolt subassembly for automobile ultrathin steel plate is vice through screwing up the nut for two second rubber rings are extruded completely into annotating the wax groove, and extrude the sealed wax of annotating the wax inslot, thereby seal the both sides of second rubber ring, make junction and external diameter that bolt head, automobile shell steel sheet and nut are vice keep apart, avoid the erosion of moisture in the air to junction. 2. This a grounding bolt subassembly for car ultrathin steel plate is through screwing up the nut for in the trompil on the second reaming piece inserts the connector lug, under the extrusion rotation of second rib and second reaming piece, make the oxide layer of connector lug trompil department scraped, and connector lug and second reaming piece can closely laminate, keep good conductivity. Drawings FIG. 1 is a schematic diagram of the overall structure of the present utility model; FIG. 2 is an exploded view of the present utility model; FIG. 3 is a schematic view of a protective shield of the present utility model; FIG. 4 is a schematic view of a nut in accordance with the present utility model;