Anti-loosening non-metal fastener

Abstract

The utility model discloses an anti-loosening non-metal fastener which comprises a bolt body, the bottom of the bolt body is fixedly connected with an extrusion block, the bottom of the extrusion block is fixedly connected with a threaded end, the outer wall of the threaded end is sleeved with a threaded block, the top of the threaded block is fixedly connected with a supporting block, and the supporting block is fixedly connected with a nut. The inner wall of the supporting block is fixedly connected with a supporting rod, the outer wall of the supporting rod is sleeved with a reset spring, one end of the reset spring is fixedly connected with a limiting block, and the outer wall of the limiting block is fixedly connected with a pull rod. According to the device, by arranging the bolt body, the extrusion block, the threaded end, the threaded block, the supporting block, the supporting rod, the reset spring, the limiting block and the pull rod, reinforcement after installation is facilitated, so that the loosening condition is effectively prevented, the firmness after installation is improved, the working requirements of people are met, and the device is worthy of popularization and application.

Description

Technical Field

[0001] The utility model belongs to the technical direction of non-metallic fasteners, and specifically relates to an anti-loosening non-metallic fastener. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening connections and are extremely widely used. With the continuous development of science and technology, fasteners are used more and more widely. They can be divided into many types according to different materials, including non-metallic fasteners.

[0003] The existing non-metallic fasteners do not have the function of strengthening and preventing loosening after installation, so they are prone to shaking and falling off, thereby reducing the firmness after installation. This phenomenon has become a problem that needs to be solved urgently by people in this field. Utility Model Content

[0004] The utility model aims to provide a non-metallic fastener for preventing loosening of existing devices, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a non-metallic fastener to prevent loosening, comprising a bolt body, the bottom of the bolt body is fixedly connected with an extrusion block, the bottom of the extrusion block is fixedly connected with a threaded end, the outer wall of the threaded end is sleeved with a threaded block, the top of the threaded block is fixedly connected with a support block, the inner wall of the support block is fixedly connected with a support rod, the outer wall of the support rod is sleeved with a return spring, one end of the return spring is fixedly connected with a limiting block, and the outer wall of the limiting block is fixedly connected with a pull rod. By providing the bolt body, extrusion block, threaded end, threaded block, support block, support rod, return spring, limiting block and pull rod, reinforcement after installation is convenient, thereby effectively preventing loosening, thereby improving the firmness after installation, meeting people's work needs, and worthy of popularization and use.

[0006] Furthermore, one end of the outer wall of the extrusion block is in an arc shape, and the other end of the outer wall of the extrusion block is straight, which facilitates the extrusion block to squeeze the limit block when it rotates, so that the limit block slides.

[0007] Furthermore, the support block is a hollow structure, and the support block and the thread block are integrated, which facilitates the support block to drive the thread block to rotate and then engage with the thread end.

[0008] Furthermore, the limit block forms a telescopic structure with the support rod through the reset spring, and the support rod has a smooth surface, which facilitates the reset spring to drive the limit block to reset and slide.

[0009] Furthermore, one end of the limit block is in an arc shape when viewed from above, and the other end of the limit block abuts against a straight end of the extrusion block, which facilitates the limit work after the limit block contacts the extrusion block.

[0010] Furthermore, the pull rod has an "L"-shaped structure when viewed from above, and the pull rod passes through the outer wall of the support block, which facilitates the sliding of the limit block after the pull rod is pulled.

[0011] Compared with the prior art, the beneficial effects achieved by the utility model are: the utility model,

[0012] (1) By providing a bolt body, an extrusion block, a threaded end, a threaded block, a support block, a support rod, a return spring, a limit block and a pull rod, it is convenient to reinforce after installation, thereby effectively preventing loosening, thereby improving the firmness after installation, meeting people's work needs, and is worthy of promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a top cross-sectional schematic diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the front view connection between the extrusion block and the limit block of the utility model;

[0017] Figure 4 The utility model Figure 1 Enlarged schematic diagram at point A in the middle.

[0018] In the figure: 1. bolt body; 2. extrusion block; 3. threaded end; 4. threaded block; 5. support block; 6. support rod; 7. return spring; 8. limit block; 9. pull rod. DETAILED DESCRIPTION

[0019] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4The utility model provides a technical solution: a non-metallic fastener to prevent loosening, comprising a bolt body 1, an extrusion block 2 is fixedly connected to the bottom of the bolt body 1, a threaded end 3 is fixedly connected to the bottom of the extrusion block 2, a threaded block 4 is sleeved on the outer wall of the threaded end 3, a support block 5 is fixedly connected to the top of the threaded block 4, the inner wall of the support block 5 is fixedly connected to a support rod 6, the outer wall of the support rod 6 is sleeved with a return spring 7, one end of the return spring 7 is fixedly connected to a limiting block 8, and the outer wall of the limiting block 8 is fixedly connected to a pull rod 9. By arranging the bolt body 1, the extrusion block 2, the threaded end 3, the threaded block 4, the support block 5, the support rod 6, the return spring 7, the limiting block 8 and the pull rod 9, it is convenient to reinforce after installation, thereby effectively preventing loosening, thereby improving the firmness after installation, meeting people's work needs, and worthy of popularization and use.

[0021] Furthermore, one end of the outer wall of the extrusion block 2 is arc-shaped, and the other end of the outer wall of the extrusion block 2 is straight, which facilitates the extrusion block 2 to squeeze the limit block 8 when rotating, so that the limit block 8 slides.

[0022] Furthermore, the support block 5 is a hollow structure, and the support block 5 and the threaded block 4 are integrated, which facilitates the support block 5 to drive the threaded block 4 to rotate and then engage with the threaded end 3.

[0023] Furthermore, the limit block 8 forms a telescopic structure with the support rod 6 through the reset spring 7, and the support rod 6 has a smooth surface, which facilitates the reset spring 7 to drive the limit block 8 to reset and slide.

[0024] Furthermore, one end of the limit block 8 is in an arc shape when viewed from above, and the other end of the limit block 8 abuts against the straight end of the extrusion block 2, which facilitates the limit work after the limit block 8 contacts the extrusion block 2.

[0025] Furthermore, the pull rod 9 is an "L"-shaped structure when viewed from above, and the pull rod 9 passes through the outer wall of the support block 5, which facilitates the sliding of the limit block 8 after the pull rod 9 is pulled.

[0026] When using, first Figure 2 As shown, the support block 5 is rotated counterclockwise, so that the support block 5 drives the threaded block 4 to rotate and then engage with the threaded end 3. During this process, the two limit blocks 8 slide backwards under the extrusion of the arc-shaped outer wall of the extrusion block 2, so that the two limit blocks 8 drive the two return springs 7 to compress and deform on the outer wall of the support rod 6. During the rotation process, the elasticity of the return spring 7 keeps the two limit blocks 8 always in contact with the arc-shaped outer wall of the extrusion block 2. When the threaded block 4 is installed, the straight end of the limit block 8 will contact the straight end of the extrusion block 2 (as shown in FIG. Figure 2 As shown), at this time, due to the limit block 8 on the extrusion block 2, the extrusion block 2 cannot be moved to rotate in the opposite direction (i.e. Figure 2 The threaded block 4 is then unable to rotate in the reverse direction, thereby avoiding accidental rotation due to shaking, which causes the threaded block 4 and the threaded end 3 to become loose, thereby improving the firmness after installation. The limiting work of the limiting block 8 can be released by subsequently pulling out the pull rod 9, so that the extrusion block 2 can be driven to rotate in the reverse direction, thereby effectively performing disassembly.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A non-metallic fastener for preventing loosening, comprising a bolt body (1), characterized in that: The bottom of the bolt body (1) is fixedly connected to an extrusion block (2), the bottom of the extrusion block (2) is fixedly connected to a threaded end (3), the outer wall of the threaded end (3) is sleeved with a threaded block (4), the top of the threaded block (4) is fixedly connected to a support block (5), the inner wall of the support block (5) is fixedly connected to a support rod (6), the outer wall of the support rod (6) is sleeved with a return spring (7), one end of the return spring (7) is fixedly connected to a limit block (8), and the outer wall of the limit block (8) is fixedly connected to a pull rod (9).

2. The non-metallic fastener for preventing loosening according to claim 1, characterized in that: One end of the outer wall of the extrusion block (2) is in an arc shape, and the other end of the outer wall of the extrusion block (2) is straight.

3. The non-metallic fastener for preventing loosening according to claim 1, characterized in that: The support block (5) is a hollow structure, and the support block (5) and the threaded block (4) are integrated.

4. The non-metallic fastener for preventing loosening according to claim 1, characterized in that: The limit block (8) forms a telescopic structure with the support rod (6) through the return spring (7), and the support rod (6) has a smooth surface.

5. The non-metallic fastener for preventing loosening according to claim 1, characterized in that: One end of the limit block (8) is in an arc shape when viewed from above, and the other end of the limit block (8) abuts against a straight end of the extrusion block (2).

6. The non-metallic fastener for preventing loosening according to claim 1, characterized in that: The pull rod (9) has an "L"-shaped structure when viewed from above, and the pull rod (9) passes through the outer wall of the support block (5).

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