CN2809312Y - Combined bolt for automobile - Google Patents

Abstract

The utility model discloses a combined bolt for automobiles, which comprises a bolt (11), a plain washer (2) and a spacer (3), wherein the end of the bolt is a conic end (4), and the bolt can be smoothly screwed into a nut of a fixed component by the guiding action of the conic end (4). When the utility model is used, the manufacture precision of a vehicle body and various components does not to be increased, the fitting allowance is ensured, and the regulated quantity of assembly is reduced.

Description

Combination bolt for automobile

Technical field

The utility model belongs to the bolt technology, in particular to a combination bolt for automobiles.

Background technique

At present, the bolts for installing various components on the car body are generally of flat end structure. This kind of bolt has no guiding function, and requires high precision for the car body and parts. When the bolt and the nut of the component are misaligned by 1/3 in the axial direction, the bolt cannot be screwed into the nut, and the axial position of the bolt and the nut must be manually adjusted to achieve basic alignment before it can be screwed in smoothly. Often because the thickness of the nut of the component to be installed is relatively large, the precision is not high enough, and it cannot be aligned quickly, which not only affects the efficiency of assembly, but also may damage the thread of the nut to varying degrees.

Contents of the invention

The purpose of the utility model is to overcome the defects of the prior art and provide a combination bolt for automobiles that does not need to improve the manufacturing accuracy of the car body and various parts, but also can ensure assembly tolerances and reduce assembly adjustments.

The technical scheme of the utility model is as follows:

The composite bolt for the automobile is composed of a bolt, a flat washer and a spacer, and the bolt is screwed into the flat washer and the spacer in turn, and the bolt has a garden cone end.

Compared with the prior art, the combination bolt of the present utility model has the following beneficial effects:

1. The guide of the end of the cone passes through the garden. During the installation process, even if the bolt and the screw are misaligned by 1/3 in the axial direction, the bolt can be smoothly screwed into the nut of the installed part to avoid damage to the nut thread.

2. Reduce the amount of assembly adjustment;

3. Guarantee the assembly tolerance.

Description of drawings

Fig. 1 is a structural diagram of the utility model.

In the figure: bolt 1 flat washer 2 spacer 3, garden cone end 4

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

In FIG. 1 , the combination bolt is composed of a bolt 1 , a flat washer 2 and a spacer 3 . The bolt head of the bolt 1 is hexagonal, so as to facilitate tightening (of course, it can also be other existing shapes). Internal thread is arranged on described flat washer 2 and spacer ring 3 inner holes, so that be screwed into bolt, their profile is garden shape or polygon. The end of the bolt is designed as a garden cone end 4, through the guiding effect of the cone end 4, the bolt can be screwed into the nut of the installed part smoothly.

Claims (1)

1. A combination bolt for automobiles, comprising a bolt (1), a flat washer (2) and a spacer (3), and the bolt (1) is screwed into the flat washer (2) and the spacer (3) successively; its feature Yes, the bolt has a conical end (4).