Anti-loosening automobile fastener

Abstract

The utility model relates to the technical field of fasteners, in particular to an anti-loosening automobile fastener which comprises a main bolt and a limiting pad, the main bolt is sleeved with the limiting pad, an auxiliary bolt is installed on the top of the main bolt in a threaded mode, and a plurality of threaded columns in a circumferential array are installed on the outer surface of the head of the auxiliary bolt. A plurality of assembling grooves in a circumferential array are formed in the top face of the limiting pad, and a limiting rod is rotationally installed in any assembling groove. The utility model has the advantages that the limiting pad is sleeved on the main bolt and is provided with the plurality of assembly grooves in the circumferential array, after the main bolt is installed in place, the limiting pad is riveted, the auxiliary bolt is installed on the main bolt, the limiting rod is installed in the assembly groove at a proper position, and the tightening cap is rotatably installed at the outer end of the limiting rod; the main bolt and the threaded column outside the auxiliary bolt are installed together in a threaded mode, the position of the auxiliary bolt can be fixed, when the main bolt is loosened, the auxiliary bolt blocks the main bolt, and the main bolt cannot fall off.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to an anti-loosening automobile fastener. Background Art

[0002] A large number of fasteners are used inside the car to fix mechanical and electrical equipment. They are characterized by a wide variety of types, various styles and specifications. Their selection and use involve structural analysis, connection design, failure and fatigue analysis, corrosion requirements and assembly methods, as well as related product quality control and testing. These factors largely determine the final quality and reliability of automotive products.

[0003] The most common fasteners for automobile parts are bolts, which are connected by nuts and screws to fix the parts.

[0004] However, most of the existing automobile fasteners will vibrate or shake during the driving of the vehicle after being fixed, which will cause the screws that are not tightly fastened to slowly vibrate and rotate, and gradually loosen or detach, making it impossible to firmly connect the automobile parts together, thereby affecting the use of the automobile parts. Based on this, the present application proposes an anti-loosening automobile fastener to solve the above problem. Utility Model Content

[0005] The utility model aims to overcome the disadvantages of the prior art and provide an anti-loosening automobile fastener.

[0006] The purpose of the utility model is achieved through the following technical solutions: an anti-loosening automobile fastener, comprising a main bolt and a limit pad, the limit pad is sleeved on the main bolt, the top thread of the main bolt is installed with a secondary bolt, the outer surface of the secondary bolt head is installed with a plurality of circumferential array of threaded columns, the top surface of the limit pad is provided with a plurality of circumferential array of assembly grooves, the interior of any of the assembly grooves is rotatably installed with a limit rod, the outer ends of the plurality of limit rods are rotatably installed with tightening caps, and the plurality of tightening caps are respectively threadedly matched with the plurality of threaded columns.

[0007] Optionally, a threaded hole is formed on the head of the main bolt, and the auxiliary bolt is threadably matched with the threaded hole.

[0008] Optionally, the head of the auxiliary bolt is hexagonal, and a wrench groove is provided on the outer surface of the head of the auxiliary bolt.

[0009] Optionally, both sides of the inner walls of the plurality of assembly grooves are protruded outward to form limiting columns, and both sides of one end of the outer side of the plurality of limiting rods are respectively rotatably matched with a group of the limiting columns.

[0010] Optionally, a plurality of riveting holes in a circumferential array are formed on the outer surface of the limiting pad.

[0011] The utility model has the following advantages:

[0012] The anti-loosening automobile fastener consists of a main bolt and a secondary bolt. The main bolt is connected to the parts, and the secondary bolt is threadedly installed on the top of the main bolt. The two form a whole. During installation, a limit pad is sleeved on the main bolt, and a plurality of assembly grooves in a circumferential array are opened on the limit pad. After the main bolt is installed in place, the limit pad is riveted, and the secondary bolt is installed on the main bolt. A limit rod is installed in the assembly groove at a suitable position. A tightening cap is rotatably installed on the outer end of the limit rod, which is threadedly installed together with the threaded column outside the secondary bolt to fix the position of the secondary bolt. When the main bolt is loose, the secondary bolt is blocked by the secondary bolt, and the main bolt will not fall off. Moreover, the limit rod can be removed by only unscrewing the tightening cap, and the disassembly of the main bolt and the secondary bolt can be completed. The fastener has a simple structure, is easy to use, and has a good anti-loosening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For the utility model Figure 1 A schematic cross-sectional structure diagram of;

[0015] Figure 3 It is a schematic diagram of the internal structure of the main bolt in the utility model;

[0016] Figure 4 It is a schematic diagram of the internal structure of the auxiliary bolt in the utility model;

[0017] Figure 5 This is a schematic diagram of the overall structure of the limiting pad in the utility model;

[0018] Figure 6 It is a schematic diagram of the internal structure of the utility model in the combined state of the limit rod and the tightening cap.

[0019] In the figure: 1-main bolt, 2-auxiliary bolt, 3-limiting pad, 4-limiting rod, 5-tightening cap, 6-threaded hole, 7-wrench slot, 8-threaded column, 9-rivet hole, 10-assembly slot, 11-limiting column. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0021] like Figures 1 to 6As shown, an anti-loosening automobile fastener comprises a main bolt 1 and a limiting pad 3, the limiting pad 3 is sleeved on the main bolt 1, the top thread of the main bolt 1 is threadedly mounted with a secondary bolt 2, the outer surface of the head of the secondary bolt 2 is mounted with a plurality of circumferential array threaded columns 8, the top surface of the limiting pad 3 is provided with a plurality of circumferential array assembly grooves 10, the interior of any assembly groove 10 is rotatably mounted with a limiting rod 4, the outer ends of the plurality of limiting rods 4 are rotatably mounted with tightening caps 5, and the plurality of tightening caps 5 are respectively threadedly matched with the plurality of threaded columns 8.

[0022] As an optional technical solution of the present invention, a threaded hole 6 is provided on the head of the main bolt 1, and the secondary bolt 2 is threadedly matched with the threaded hole 6 to form the two into a whole without affecting the structural strength of the main bolt 1 and facilitating the installation and disassembly of the secondary bolt 2.

[0023] As an optional technical solution of the present invention, the head of the auxiliary bolt 2 is hexagonal, and a wrench groove 7 is provided on the outer surface of the head of the auxiliary bolt 2, so that the staff can use a variety of wrench tools to tighten the auxiliary bolt 2.

[0024] As an optional technical solution of the present invention, both sides of the inner walls of multiple assembly grooves 10 are convex to form limiting columns 11, and both sides of the outer ends of multiple limiting rods 4 are rotatably matched with a group of limiting columns 11, so that it is convenient to install and disassemble the limiting rods 4, and the size of the limiting rods 4 is adapted to the size inside the assembly groove 10, so the limiting rods 4 can be limited to avoid shaking.

[0025] As an optional technical solution of the utility model, a plurality of rivet holes 9 in a circular array are provided on the outer surface of the limit pad 3, so that the limit pad 3 can be easily installed on the component by means of fasteners such as rivets, so that the position of the component is firmly fixed, and the limit pad 3 can prevent the main bolt 1 from directly contacting the component and causing wear between the two.

[0026] When the main bolt 1 is loosened, the secondary bolt 2 is blocked, and the main bolt 1 will not fall off. Moreover, the limiting pad 3 can be removed by unscrewing the tightening cap 5, thereby completing the disassembly of the main bolt 1 and the secondary bolt 2.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-loosening automotive fastener, characterized in that: The invention comprises a main bolt (1) and a limiting pad (3), wherein the limiting pad (3) is sleeved on the main bolt (1), a secondary bolt (2) is threadedly mounted on the top of the main bolt (1), a plurality of threaded columns (8) in a circumferential array are mounted on the outer surface of the head of the secondary bolt (2), a plurality of assembly grooves (10) in a circumferential array are opened on the top surface of the limiting pad (3), a limiting rod (4) is rotatably mounted inside any of the assembly grooves (10), a tightening cap (5) is rotatably mounted on the outer ends of the plurality of limiting rods (4), and the plurality of tightening caps (5) are respectively threadedly matched with the plurality of threaded columns (8).

2. The anti-loosening automotive fastener according to claim 1, characterized in that: The head of the main bolt (1) is provided with a threaded hole (6), and the auxiliary bolt (2) is threadably matched with the threaded hole (6).

3. The anti-loosening automotive fastener according to claim 1, characterized in that: The head of the auxiliary bolt (2) is hexagonal, and a wrench groove (7) is provided on the outer surface of the head of the auxiliary bolt (2).

4. The anti-loosening automotive fastener according to claim 1, characterized in that: Both sides of the inner walls of the plurality of assembly grooves (10) are outwardly protruding to form limiting columns (11), and both sides of one end of the outer side of the plurality of limiting rods (4) are respectively rotatably matched with a group of the limiting columns (11).

5. The anti-loosening automotive fastener according to claim 1, characterized in that: The outer surface of the limiting pad (3) is provided with a plurality of riveting holes (9) in a circumferential array.

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