CN203348285U - Protection assembly for automobile wheel nut - Google Patents

Abstract

The utility model provides a protection assembly for an automobile wheel nut, which belongs to the technical field of automobile tires. The invention solves the problem that the existing protective cover is difficult to pull out from the outer nut because the boss is stuck on the chamfer, which causes inconvenient disassembly. The protective assembly of the automobile wheel nut includes a cylindrical cover body, the cover body has an inner cavity and the opening peripheral wall of the inner cavity is closely matched with the side of the wheel nut, and the bottom of the inner cavity also has an escape groove that can accommodate the end of the bolt. The cover body The outer side has connecting grooves for easy disassembly. When disassembling, a special disassembly tool is required to snap into the connection groove, which is convenient for disassembly, and secondly, it also has a certain anti-theft effect.

Description

A kind of protective component of automobile wheel nut

technical field

The utility model belongs to the technical field of automobile tires, and relates to a protection assembly, in particular to a protection assembly for automobile wheel nuts.

Background technique

Due to the extremely bad working environment of the wheel, the wheel nut and the screw rod connected to it have been eroded for a long time, and are prone to rust or even rust. When the vehicle breaks down and the wheels need to be disassembled, it will make the disassembly process very difficult; at the same time, the damage of the connecting thread will also reduce the connection strength and shorten the service life of the parts. In this case, various wheel nut assemblies that add protective covers outside the wheel nuts come into being. As a high-speed running part, the wheel not only requires a good fit between the wheel nut and the protective cover, so that the protective cover will not fall off and be lost during the driving of the vehicle; secondly, it is also required that the wheel nut and the protective cover are easy to disassemble when the vehicle breaks down and the wheel needs to be disassembled.

Because the nut hole on the wheel (aluminum alloy rim) is concave, the existing various wheel nut assemblies and the nut protection cover cannot meet the requirements for easy disassembly. The nut protective cover is deformed, which will cause the nut protective cover to fall off and be lost over time. For example, the patent [Application No.: 91212544.6] for a car tire nut protective cover published by the Chinese Patent Office is composed of a cover body and a cover cover. The cover body can be provided with a boss and an open elastic groove to be stuck on the chamfer of the outer nut. to prevent falling. A connection hole can be provided on the cover, and the inner nut can be connected together by a fastener. The utility model can effectively protect the existing exposed automobile tire nuts, so that the screw threads and their joint parts can be prevented from being corroded by sand, gravel and muddy water. However, the protective cover of this structure is difficult to pull it off from the outer nut because the boss is stuck on the chamfer, resulting in inconvenient disassembly, and the protective cover can only be destroyed by force by external force.

Contents of the invention

The purpose of the utility model is to solve the problems mentioned above in the prior art, and to propose a protection assembly for a car wheel nut that is easy to disassemble.

The purpose of this utility model can be achieved through the following technical solutions: a protection assembly for automobile wheel nuts, characterized in that the protection assembly includes a cylindrical cover, the cover has an inner cavity and the opening peripheral wall of the inner cavity is connected The sides of the nuts are closely matched, the bottom of the inner cavity also has an avoidance groove that can accommodate the ends of the bolts, and the outer side of the cover has a connecting groove for easy disassembly.

The interference fit between the inner wall of the cover body and the side of the wheel nut can ensure the pull-out force requirement of about 50N·m; the bottom of the inner cavity of the cover body is an avoidance groove with a certain space. When the bolt passes through the wheel nut, one end protrudes , the avoidance groove can accommodate this end, which can protect the end of the wheel bolt from corrosion and ensure that the cover body does not interfere with the bolt. A connection groove is arranged on the outer surface of the cover near the end, which is convenient for disassembly by using a special disassembly tool, and secondly, it also has a certain anti-theft effect.

In the above-mentioned protective assembly for automobile wheel nuts, several strip-shaped reinforcing ribs are provided on the inner wall of the cover body. The inner side of the cover is provided with reinforcing ribs, which improve the interference fit between the cover body and the side of the wheel nut, and prevent the protection components from falling off.

In the above-mentioned protection assembly for automobile wheel nuts, the connection groove may be externally connected with a removal tool. When disassembling, use a special disassembly tool to snap into the connecting groove on the side of the cover body, and gently pull out the cover body along the axis of the wheel nut to separate the cover body from the wheel nut to achieve the purpose of disassembly.

In the above-mentioned protection assembly for automobile wheel nuts, the removal tool is U-shaped and has two ends protruding inwardly and capable of inserting into the connection groove. The U-shaped dismantling tool has symmetrical snapping angles, and the snapping corners are snapped into the connecting groove, so that the dismantling tool and the cover body are mutually locked in the axial direction of the wheel nut.

In the above-mentioned protection assembly for automobile wheel nuts, the connecting groove is provided in an annular shape on the outside of the cover body. The disassembly tool can be inserted into the connection groove no matter what angle it is inserted in, which is convenient for disassembly and does not need to be aligned in advance.

As another solution, in the above-mentioned protective assembly for automobile wheel nuts, there are several connecting grooves distributed on the outer side of the cover in the circumferential direction, and the number corresponds to the number of clamping angles of the removal tool one by one. The snap angle corresponds to the connecting groove one by one, so that the removal tool and the cover body are locked in the circumferential direction, which can drive the cover body to rotate. For the case where the cover body and the wheel nut are bonded together for a long time, the cover body can be rotated first to loosen the two. Then pull it out to improve the removal efficiency.

In the above-mentioned protection assembly for automobile wheel nuts, the wall thickness of the cover body is 1cm-2cm. Because the nut hole on the aluminum alloy rim has a small concave, the cover body with a wall thickness of 1cm to 2cm does not take up space.

In the above-mentioned protective assembly for automobile wheel nuts, the cover body is made of nylon material. The structure is firm and not easily corroded by the external environment.

Compared with the prior art, the protective assembly of the automobile wheel nut has simple structure, high anti-corrosion performance, low cost, interference fit between the cover body and the wheel nut, is not easy to fall off, and has a certain anti-theft effect; The disassembly tool can be snapped into the connection groove, which is convenient for disassembly.

Description of drawings

Fig. 1 is a structural schematic view of the assembly of the protective assembly of the automobile wheel nut.

Fig. 2 is a structural schematic diagram when the protective assembly of the automobile wheel nut is disassembled.

Fig. 3 is a schematic cross-sectional view of the cover.

Fig. 4 is a schematic top view of the cover.

In the figure, 1. cover body; 2. wheel nut; 3. removal tool; 4. escape groove; 5. connecting groove; 6. reinforcing rib;

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

As shown in Fig. 1, Fig. 2 and Fig. 3, the protective assembly of the automobile wheel nut 2 includes a cylindrical cover body 1, the cover body 1 has an inner chamber 8 and the opening peripheral wall of the inner chamber 8 is closely connected to the side surface of the wheel nut 2 Matching, the bottom of the inner cavity 8 also has an avoidance groove 4 that can accommodate the end of the bolt, and the outer side of the cover body 1 has a connecting groove 5 for easy disassembly. Since most of the wheel nuts 2 are common hexagonal flat-end nuts, the side of the cover body 1 is also hexagonal in this embodiment, which is interference fit with the side of the hexagonal wheel nut 2 .

Specifically, as shown in FIG. 4 , several strip-shaped reinforcing ribs 6 are provided on the surrounding wall of the inner cavity 8 of the cover body 1 to ensure that the side wall of the cover body 1 can achieve an interference fit with the side wall of the wheel nut 2 . The wall thickness of the cover body 1 is 1cm-2cm, and the cover body 1 is made of nylon material, and the ratio of raw materials can be adjusted according to different modeling requirements to make it into different colors.

The connection groove 5 can be externally connected with a removal tool 3. The removal tool 3 of this embodiment is U-shaped and both ends are provided with inwardly protruding corners 7 that can be embedded in the connection groove 5. The U-shaped removal tool 3 itself Has good elasticity. The connecting groove 5 is arranged in a ring on the outer side of the cover body 1. Of course, it is also possible to set a plurality of connecting grooves 5 distributed on the outer side of the cover body 1 in the circumferential direction, and the number corresponds to the number of the clamping angles 7 of the removal tool 3 one by one. .

When installing, fasten the wheel nut 2 first, and then assemble the cover body 1 on the outside of the wheel nut 2 to achieve interference fit; when disassembling, use a special disassembly tool 3 to snap into the connection groove 5 on the side of the cover body 1, and The cover body 1 is gently pulled out along the axial direction of the wheel nut 2, so that the cover body 1 and the wheel nut 2 are separated to achieve the purpose of disassembly.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (8)

1. the protection assembly of a Car Wheel Nut; it is characterized in that; the protection assembly of described Car Wheel Nut comprises tubular cover body (1); described cover body (1) has the opening perisporium and wheel nut (2) side phase close-fitting of inner chamber (8) and described inner chamber (8); described inner chamber (8) bottom also have can hold the bolt end dodge groove (4), described cover body (1) lateral part has easy-to-dismount connecting groove (5).

2. the protection assembly of Car Wheel Nut according to claim 1, is characterized in that, inner chamber (8) perisporium of described cover body (1) is provided with some bar shaped stiffening ribs (6).

3. the protection assembly of Car Wheel Nut according to claim 2, is characterized in that, described connecting groove (5) can be circumscribed with extracting tool (3).

4. the protection assembly of Car Wheel Nut according to claim 3, is characterized in that, described extracting tool (3) takes the shape of the letter U and two ends are provided with the Ka Jiao (7) that can embed in connecting groove (5) to projecting inward.

5. according to the protection assembly of claim 1 or 2 or 3 or 4 described Car Wheel Nuts, it is characterized in that, described connecting groove (5) is opened in cover body (1) outside ringwise.

6. the protection assembly of Car Wheel Nut according to claim 4; it is characterized in that; described connecting groove (5) has several and circumferentially is distributed in cover body (1) outside, and the quantity of described connecting groove (5) is corresponding one by one with Ka Jiao (7) quantity of described extracting tool (3).

7. the protection assembly of Car Wheel Nut according to claim 5, is characterized in that, the wall thickness of described cover body (1) is 1cm～2cm.

8. the protection assembly of Car Wheel Nut according to claim 6, is characterized in that, described cover body (1) adopts nylon material to make.

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