CN220349629U

CN220349629U - Bonding protection device

Info

Publication number: CN220349629U
Application number: CN202321259166.6U
Authority: CN
Inventors: 马艳红; 崔宇健; 姜咏卉; 李秀娟; 王晶淼; 郭爽; 马权; 潘宏光; 宋大鹏; 李自乾
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2023-05-23
Filing date: 2023-05-23
Publication date: 2024-01-16
Anticipated expiration: 2033-05-23

Abstract

The utility model belongs to the technical field of vehicles, and discloses an grounding protection device, which comprises a barrel and a sealing cover, wherein the barrel is provided with a containing cavity, a first opening and a second opening are respectively formed in two ends of the barrel, a welding bolt can penetrate through a sheet metal part and the first opening and is connected with the barrel, the sealing cover is arranged on the barrel and can slide along the axis direction of the barrel, so that the sealing cover opens and closes the second opening, the sealing cover is pulled upwards, the second opening is in an open state, then the welding bolt penetrates through the sheet metal part and the first opening and stretches into the containing cavity, the welding bolt is in fastening fit with the barrel, meanwhile, the bottom of the barrel is completely attached to the sheet metal part, the sealing cover is pressed downwards, the sealing cover closes the second opening, and the containing cavity forms a closed cavity, thereby achieving the purpose of protecting the welding bolt, effectively protecting isolation paint of the welding bolt during electrophoresis, and ensuring excellent electric conduction performance between the welding bolt and a nut after assembly.

Description

Bonding protection device

Technical Field

The utility model relates to the technical field of vehicles, in particular to an grounding protection device.

Background

The vehicle body is subjected to electrophoresis, so that a layer of paint can be applied to the threaded surfaces of the welding nut and the welding bolt on the vehicle body. At present, the connection of the automobile bonding part widely adopts a bolt (or nut) structure with a scraping end, and the electrophoresis paint on the surface of the nut (or bolt) of the automobile body is hung off through the bolt (or nut), so that the electric conductivity is improved and the assembly is improved. However, under the condition of unclean scraping, an electrophoresis paint coating or a plating layer still remains on the thread, so that the conductive effect of the connecting end surface of the iron-carrying piece is poor, and the conductive performance is poor.

Accordingly, there is a need for an access protection device that addresses the above-described issues.

Disclosure of Invention

The utility model aims to provide the grounding protection device, which can achieve the purpose of protecting a welding bolt, effectively protect isolation paint of the welding bolt during electrophoresis, ensure excellent conductivity between the welding bolt and a nut after assembly, and further improve the grounding reliability of a wire harness.

In order to solve the problems existing in the prior art, the utility model adopts the following technical scheme:

an ground strap guard comprising:

the welding bolt can penetrate through the sheet metal part and the first opening and is connected with the cylinder;

the sealing cover is arranged on the cylinder body and can slide along the axial direction of the cylinder body, so that the second opening is opened and closed by the sealing cover.

Preferably, the inner side wall of the cylinder is provided with an internal thread, and the welding bolt is in threaded connection with the cylinder through the internal thread.

Preferably, the side wall of the sealing cover is provided with a ventilation channel, the ventilation channel is provided with a first end and a second end, the first end is communicated with the accommodating cavity, when the sealing cover is opened with the second opening, the second end is communicated with air outside the cylinder, and when the sealing cover is closed with the second opening, the second end is disconnected with the air outside the cylinder.

Preferably, the sealing cover comprises a sliding part, a blocking part and a limiting part, the sliding part is arranged in the second opening in a sliding mode, the blocking part and the limiting part are respectively connected to two ends of the sliding part, the limiting part is located in the accommodating cavity, the blocking part is located outside the cylinder, when the second opening is opened, the limiting part is attached to the cylinder, the blocking part is separated from the cylinder, when the second opening is closed, the limiting part is separated from the cylinder, and the blocking part is attached to the cylinder.

Preferably, the cylinder is provided with a step surface, the step surface is located at the second opening, and the plugging part can be attached to the step surface.

Preferably, the bonding protection device further comprises a sealing ring, the sealing ring is located in the first opening, a first end portion of the sealing ring is connected to the cylinder body, and a second end portion of the sealing ring can be attached to the sheet metal part.

Preferably, the sealing ring and the cylinder are integrally formed.

Preferably, the cylinder body is of a cylinder structure with a hexagonal cross section.

Preferably, the cylinder is made of a plastic material.

Preferably, the sealing cover is made of a rubber material.

The beneficial effects of the utility model are as follows:

the utility model provides an grounding protection device, wherein a cylinder body is provided with a containing cavity for containing a welding bolt, a first opening and a second opening are respectively formed in two ends of the cylinder body, the welding bolt can penetrate through a sheet metal part and the first opening and is connected with the cylinder body, and a sealing cover is arranged on the cylinder body and can slide along the axial direction of the cylinder body so that the sealing cover can open and close the second opening. And the sealing cover is pulled upwards, and the second opening is in an open state, so that the welding bolt keeps the internal and external air pressure of the cylinder in an equilibrium state in the installation process. Then pass sheet metal component and first opening with welding bolt and stretch into and hold the intracavity, welding bolt and barrel fastening cooperation, simultaneously, the bottom and the sheet metal component of barrel laminate completely, press sealed lid downwards, sealed lid closes the second opening, makes and holds the chamber and form closed cavity to reach the purpose of welding bolt protection, can effectively protect welding bolt's isolation paint when electrophoresis, guarantee that the conduction performance between welding bolt and the nut is good after the assembly, thereby improve the ground connection reliability of pencil.

Drawings

FIG. 1 is an exploded view of an embodiment of the present utility model;

FIG. 2 is a schematic view of an embodiment of an grounding protection apparatus according to the present utility model;

fig. 3 is a schematic structural diagram of a ground engaging protection device according to an embodiment of the present utility model.

Reference numerals:

100. welding a bolt; 200. a sheet metal part;

1. a cylinder; 11. a receiving chamber; 12. a first opening; 13. a second opening; 14. a step surface;

2. sealing cover; 21. a sliding part; 22. a blocking part; 23. a limit part; 24. a vent passage;

3. and (3) sealing rings.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The connection of the automobile bonding part widely adopts a bolt (or nut) structure with a scraping end, and the electrophoresis paint on the surface of the nut (or bolt) of the automobile body is hung off through the bolt (or nut), so that the electric conduction performance is improved and the assembly is improved. However, under the condition of unclean scraping, an electrophoresis paint coating or a plating layer still remains on the thread, so that the conductive effect of the connecting end surface of the iron-carrying piece is poor, and the conductive performance is poor. In this regard, this embodiment provides bonding protector, can reach the purpose of welding bolt protection, can effectively protect welding bolt's isolation paint when electrophoresis, guarantees that the electric conductivity between welding bolt and the nut is good after the assembly to improve the ground connection reliability of pencil.

As shown in fig. 1 to 3, in the present embodiment, the ground guard includes a cylinder 1 and a seal cover 2. Wherein, barrel 1 has holds chamber 11, holds chamber 11 and is used for holding welding bolt 100, and first opening 12 and second opening 13 have been seted up respectively at the both ends of barrel 1, and welding bolt 100 can pass sheet metal component 200 and first opening 12 and connect in barrel 1, and sealed lid 2 sets up in barrel 1 and can follow the axis direction of barrel 1 and slide to make sealed lid 2 open and close second opening 13. Specifically, the sealing cap 2 is pulled up, and the second opening 13 is in an open state, so that the welding bolt 100 maintains the internal and external air pressures of the cylinder 1 in a balanced state during installation. Then pass welding bolt 100 sheet metal component 200 and first opening 12 and stretch into and hold in the chamber 11, welding bolt 100 and barrel 1 fastening fit, simultaneously, the bottom of barrel 1 is laminated completely with sheet metal component 200, press sealed lid 2 downwards, sealed lid 2 closes second opening 13, make and hold chamber 11 and form closed cavity, thereby reach the purpose of welding bolt 100 protection, can effectively protect welding bolt 100's isolation paint when electrophoresis, guarantee that the conduction performance between welding bolt 100 and the nut is good after the assembly, thereby improve the ground connection reliability of pencil.

Further, with continued reference to fig. 1-3, the inner sidewall of the cylinder 1 is provided with internal threads by which the weld bolt 100 is threadedly coupled to the cylinder 1. Specifically, the external thread of the welding bolt 100 is in threaded engagement with the internal thread of the cylinder 1, so that the welding bolt 100 is in tight engagement with the cylinder 1, and the connection is stable and is not easy to loosen.

Further, with continued reference to fig. 1-3, the sidewall of the sealing cap 2 is provided with a vent channel 24, the vent channel 24 having a first end and a second end, the first end being in communication with the receiving chamber 11, the second end being in communication with air outside the cartridge 1 when the sealing cap 2 opens the second opening 13, and the second end being disconnected from air outside the cartridge 1 when the sealing cap 2 closes the second opening 13. Specifically, the sealing cover 2 is pulled up, the second opening 13 is in an open state, and at this time, the accommodating chamber 11 is communicated with the outside air of the cylinder 1 through the ventilation channel 24, so that the balance of the internal and external air pressures of the cylinder 1 during the installation of the welding bolt 100 is ensured. After the welding bolt 100 is tightly matched with the cylinder body 1, the sealing cover 2 is pressed downwards, and the second opening 13 is in a closed state, so that the accommodating cavity 11 forms a closed cavity, and the purpose of protecting the welding bolt 100 is achieved.

Further, with continued reference to fig. 1-3, the sealing cover 2 includes a sliding portion 21, a blocking portion 22 and a limiting portion 23, the sliding portion 21 is slidably disposed through the second opening 13, the blocking portion 22 and the limiting portion 23 are respectively connected to two ends of the sliding portion 21, the limiting portion 23 is located in the accommodating cavity 11, the blocking portion 22 is located outside the cylinder 1, when the second opening 13 is opened, the limiting portion 23 is attached to the cylinder 1, the blocking portion 22 is separated from the cylinder 1, when the second opening 13 is closed, the limiting portion 23 is separated from the cylinder 1, and the blocking portion 22 is attached to the cylinder 1. Specifically, the limiting portion 23 can play a role in limiting the sliding portion 21, so that the sliding portion 21 is prevented from being separated from the cylinder 1 in the sliding process, the blocking portion 22 can completely block the second opening 13, and the accommodating cavity 11 is ensured to be in a relatively sealed space, so that the purpose of protecting the welding bolt 100 is achieved.

Further, with continued reference to fig. 1-3, the barrel 1 is provided with a stepped surface 14, the stepped surface 14 is located at the second opening 13, and the blocking portion 22 can be attached to the stepped surface 14. Specifically, the plugging portion 22 is in interference fit with the cylinder body 1, namely, the bottom and the peripheral wall of the plugging portion 22 can be attached to the step surface 14, and the sealing performance is good.

Further, with continued reference to fig. 1-3, the ground strap protection device further includes a sealing ring 3, the sealing ring 3 is located in the first opening 12, a first end of the sealing ring 3 is connected to the cylinder 1, and a second end of the sealing ring 3 can be attached to the sheet metal part 200. Specifically, the welding bolt 100 is in fastening fit with the cylinder 1, the bottom of the cylinder 1 is completely attached to the sheet metal part 200 through the sealing ring 3, the sealing cover 2 is pressed downwards, the second opening 13 is closed by the sealing cover 2, and the accommodating cavity 11 forms a closed cavity, so that the sealing performance is good.

Further, with continued reference to fig. 1-3, the sealing ring 3 is integrally formed with the cylinder 1. Specifically, sealing washer 3 is made by rubber material, and is rich in elasticity to make sealing washer 3 can laminate completely with the panel beating, the laminating nature is good, and the replacement cost is low.

Further, with continued reference to fig. 1-3, the cylinder 1 is a cylindrical structure having a hexagonal cross section. Specifically, the cylinder 1 is made of plastic material, has low cost, can be matched and fastened with the welding bolt 100, and is convenient for screwing and assembling.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The bonding protector, its characterized in that includes:

the welding device comprises a cylinder body (1), wherein the cylinder body (1) is provided with a containing cavity (11), the containing cavity (11) is used for containing a welding bolt (100), a first opening (12) and a second opening (13) are respectively formed in two ends of the cylinder body (1), and the welding bolt (100) can penetrate through a sheet metal part (200) and the first opening (12) and is connected to the cylinder body (1);

and the sealing cover (2) is arranged on the cylinder body (1) and can slide along the axial direction of the cylinder body (1), so that the sealing cover (2) opens and closes the second opening (13).

2. The ground strap protection device according to claim 1, characterized in that the inner side wall of the cylinder (1) is provided with an internal thread, by means of which the welding bolt (100) is screwed with the cylinder (1).

3. The ground shield apparatus as recited in claim 1, wherein the sidewall of the sealing cover (2) is provided with a ventilation channel (24), the ventilation channel (24) having a first end and a second end, the first end being in communication with the receiving chamber (11), the second end being in communication with air outside the cylinder (1) when the sealing cover (2) opens the second opening (13), the second end being disconnected from air outside the cylinder (1) when the sealing cover (2) closes the second opening (13).

4. The bonding protection device according to claim 1, wherein the sealing cover (2) comprises a sliding part (21), a blocking part (22) and a limiting part (23), the sliding part (21) is arranged in the second opening (13) in a sliding way, the blocking part (22) and the limiting part (23) are respectively connected to two ends of the sliding part (21), the limiting part (23) is located in the accommodating cavity (11), the blocking part (22) is located outside the cylinder (1), when the second opening (13) is opened, the limiting part (23) is attached to the cylinder (1), the blocking part (22) is detached from the cylinder (1), and when the second opening (13) is closed, the limiting part (23) is detached from the cylinder (1), and the blocking part (22) is attached to the cylinder (1).

5. The ground engaging protection device according to claim 4, characterized in that the cylinder (1) is provided with a step surface (14), the step surface (14) being located at the second opening (13), the blocking portion (22) being able to fit against the step surface (14).

6. The ground strap protection device according to claim 1, characterized in that it further comprises a sealing ring (3), said sealing ring (3) being located in said first opening (12), a first end of said sealing ring (3) being connected to said cylinder (1), a second end of said sealing ring (3) being able to be conformed to said sheet metal part (200).

7. The ground engaging protection device according to claim 6, characterized in that the sealing ring (3) is integrally formed with the cylinder (1).

8. The bonding protection device according to claim 1, characterized in that the cylinder (1) has a cylindrical structure with hexagonal cross section.

9. The ground-engaging protection device according to claim 1, characterized in that the cylinder (1) is made of plastic material.

10. The ground strap protection device according to claim 1, characterized in that the sealing cover (2) is made of rubber material.