Anti-disassembly and anti-theft fastener for automobile

Abstract

The anti-disassembly and anti-theft fastener for the automobile comprises a bolt head and a bolt rod, the bolt head is provided with a hole, the inner wall of the hole is provided with a protruding structure, and an inner cavity of the hole is provided with an inner pentagonal structure or an inner hexagonal structure through the protruding structure; and a convex column is arranged at the center of the hole. The fastener is a bolt, the bolt head of the bolt is provided with an inner pentagon or an inner hexagon, and the bolt head is matched with the convex column, so that the bolt head has a special pattern, cannot be operated by a conventional tool, and has anti-theft and anti-disassembly functions.

Description

Technical Field

[0001] The utility model belongs to the technical field of bolt fasteners, and in particular relates to a fastener used for preventing automobiles from being disassembled or theft-proof. Background Art

[0002] Bolt fasteners are a very important industrial part in the industrial field and are used to connect two structural parts.

[0003] In some automobile structures, such as automobile engines and gearboxes, the intellectual property protection of the core components is involved. The packaging bolts thereon will be designed as special-shaped bolt structures, making it impossible to disassemble them with common disassembly wrenches on the market. They have anti-disassembly and anti-theft functions, and require special wrenches for installation and disassembly to protect intellectual property rights.

[0004] The present application further designs and improves this type of anti-disassembly and anti-theft automobile fasteners. Utility Model Content

[0005] In view of the above deficiencies in the prior art, the utility model provides a fastener for automobile anti-disassembly and anti-theft. By uniquely designing the bolt head of the bolt fastener, conventional wrenches cannot be used to disassemble the bolt, and the utility model has good anti-theft and anti-disassembly functions.

[0006] The utility model solves the problem through the following technical solutions.

[0007] A fastener for preventing automobile disassembly and theft comprises a bolt head and a bolt rod, wherein the bolt head is provided with a hole, the inner wall of the hole is provided with a protruding structure, the protruding structure makes the inner cavity of the hole have an inner pentagonal structure or an inner hexagonal structure; a protruding column is provided at the center of the hole.

[0008] The fastener in the present application is a bolt, on the bolt head of which a pentagonal or hexagonal hole is provided, and a boss is provided so that the bolt head has a special pattern, which cannot be operated by conventional tools, and has anti-theft and anti-disassembly functions.

[0009] In a preferred embodiment, the bolt head is a cylindrical structure with a protruding surface, so that it cannot be disassembled by a conventional wrench, and the hole is provided on the protruding surface.

[0010] In a preferred embodiment, the hole is a circular hole, which is arranged at the center of the bolt head.

[0011] In a preferred embodiment, the boss is disposed at the center of the hole, and the boss is a cylinder, a triangular prism, or a square column, and is used to form a bolt head with a special flower pattern to provide anti-theft and anti-disassembly functions.

[0012] In a preferred embodiment, a flange is provided between the bolt rod and the bolt head, which can perform the functions of sealing and increasing the effective support diameter, thereby providing better fastening force for the connector; the tail portion has a guide for better screwing into the bolt rod and is provided with a threaded section.

[0013] In a preferred embodiment, the tail end of the threaded section has a guide portion to facilitate better screwing in.

[0014] In a preferred embodiment, the upper surface of the protruding structure is an inclined surface to facilitate the insertion of a matching special tool.

[0015] Compared with the prior art, the utility model has the following beneficial effects: it provides a fastener for preventing automobile disassembly and theft, and through the unique design of the bolt head of the bolt fastener, it has a special pattern, so that conventional wrenches cannot perform the disassembly operation of the bolt, and it has good anti-theft and anti-disassembly functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the bolt in the first embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the bolt head of the bolt in the first embodiment of the present invention.

[0018] Figure 3 It is a schematic diagram of the bolt in the second embodiment of the present invention.

[0019] Figure 4 It is a schematic diagram of a bolt head of a bolt in the second embodiment of the present invention. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] In the following embodiments, the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of the present utility model, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and therefore cannot be understood as limiting the present utility model. In addition, the terms: first, second, etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present utility model, unless otherwise clearly specified and limited, the terms: install, connect, connect, etc. should be understood in a broad sense, and ordinary technicians in this field can understand the specific meanings of the above terms in this application according to the specific circumstances.

[0023] See also Figures 1 to 4 A fastener for automobile anti-disassembly and anti-theft includes a bolt head 1 and a bolt rod 3. The bolt head 1 is provided with a hole 11. The inner wall of the hole 11 is provided with a protruding structure 12. The protruding structure 12 makes the inner cavity of the hole 11 have an inner pentagonal structure or an inner hexagonal structure; a protruding column 13 is provided at the center of the hole 11.

[0024] Specifically, in the present application, the bolt head 1 is a cylindrical structure with a protruding surface, so that a conventional wrench cannot be used to disassemble it, and the hole 11 is provided on the protruding surface. The hole 11 is a circular hole, which is provided at the center of the bolt head 1. The boss 13 is provided at the center of the hole 11, and the boss 13 is a cylinder, a triangular prism or a square column, which is used to form a bolt head with a special flower pattern, and plays an anti-theft and anti-disassembly function.

[0025] The fastener in the present application is a bolt, and a pentagonal or hexagonal hole 11 is provided on the bolt head 1 of the bolt, and cooperates with a boss 13, so that the bolt head 1 has a special pattern, which cannot be operated by conventional tools and has anti-theft and anti-disassembly functions.

[0026] In addition, in the present application, a flange 2 is provided between the bolt shank 3 and the bolt head 1, which can play the role of sealing and increasing the effective support diameter, providing better fastening force for the connector; the tail portion has a guide for better screwing into the bolt shank 3, and a threaded section 4 is provided. The tail end of the threaded section 4 has a guide portion 5 for better screwing in. The upper surface of the protruding structure 12 is an inclined surface, which is convenient for the insertion of matching special tools.

[0027] Specifically, Figure 1 and Figure 2 The figure shows a bolt in the first embodiment of the present invention. It can be seen from the figure that the hole 11 on the bolt head 1 has a protruding structure 12 and forms an inner pentagonal structure. The hole 11 also has a protruding column 13, which is a triangular prism.

[0028] Specifically, Figure 3 and Figure 4 The figure shows a bolt in the second embodiment of the present invention. It can be seen from the figure that the hole 11 on the bolt head 1 has a protruding structure 12 and forms a hexagonal structure. The hole 11 also has a protruding column 13 which is a cylinder.

[0029] The bolt heads in the above two embodiments both have special flower patterns.

[0030] It can be seen from the above description that the utility model provides a fastener for preventing automobile disassembly and theft. The bolt head of the bolt fastener is uniquely designed to have a special pattern, so that conventional wrenches cannot be used to disassemble the bolt, and the utility model has good anti-theft and anti-disassembly functions.

[0031] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims

1. A fastener for preventing automobile disassembly and theft, comprising a bolt head (1) and a bolt rod (3), characterized in that: The bolt head (1) is provided with a hole (11), and the inner wall of the hole (11) is provided with a protruding structure (12), and the protruding structure (12) enables the inner cavity of the hole (11) to have an inner pentagonal structure or an inner hexagonal structure; a protruding column (13) is provided at the center of the hole (11); The bolt head (1) is a cylindrical structure with a protruding surface, and the hole (11) is provided on the protruding surface; The hole (11) is a circular hole, which is arranged at the center of the bolt head (1); The convex column (13) is arranged at the center position of the hole (11), and the convex column (13) is a triangular prism or a square column; A flange (2) is provided between the bolt rod (3) and the bolt head (1), and a threaded section (4) is provided on the bolt rod (3); The upper surface of the protruding structure (12) is an inclined surface.

2. A fastener for preventing automobile disassembly and theft according to claim 1, characterized in that: The tail end of the threaded section (4) has a guide portion (5).

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