A self-tapping and self-locking bolt

Abstract

The utility model belongs to the technical field of self-tapping bolts, and is particularly concerned with a self-tapping and self-locking bolt, comprising a mounting plate, a bolt body, a gasket and a threaded hole, wherein the bolt body is threadedly connected to the inner wall of the threaded hole, the gasket is sleeved on the periphery of the threaded section of the bolt body, and a self-locking mechanism is connected between the mounting plate body and the bolt body; the self-locking mechanism comprises an arc-shaped limiting slot provided on the end surface of the mounting plate body and a rectangular groove provided on the periphery of a cap body of the bolt body, an inner side wall of the rectangular groove is provided with a placement strip groove, and a sliding sleeve block is slidably connected to the inner wall of the placement strip groove, and the utility model sets a self-locking mechanism, so that after the bolt body is screwed into the specified position, the arc-shaped limiting insertion rod will be reset and inserted into the arc-shaped limiting slot, so that it will no longer be rotated, thereby avoiding the loosening of the bolt body caused by mechanical vibration in the later stage, and making it more stable during use.

Description

Technical Field

[0001] The utility model relates to the technical field of self-tapping bolts, in particular to a self-tapping and self-locking bolt. Background Art

[0002] With the continuous development of industrial technology, bolts, as important connectors, are widely used in various fields such as construction, machinery, and electronics. Traditional bolt connections require the use of nuts or other fasteners. The installation process is cumbersome, and problems such as loosening and falling off are prone to occur during use, affecting the stability and safety of the connector. Therefore, the development of a new type of bolt that can simplify the installation process and improve the stability of the connection is of great significance to improving industrial production efficiency and ensuring equipment safety.

[0003] At present, there are some self-tapping bolts on the market. These bolts can automatically cut into the base material during installation to achieve quick connection. However, these self-tapping bolts often lack self-locking function and cannot effectively prevent loosening caused by vibration, impact and other factors during use. In addition, although some self-locking bolts can achieve self-locking function, they have complex structures, high manufacturing costs, and are prone to self-locking failure during use. For this reason, we provide a self-tapping self-locking bolt. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a self-tapping and self-locking bolt to more accurately solve the problems raised in the above background technology.

[0005] The utility model is realized by the following technical solutions:

[0006] The utility model provides a self-tapping and self-locking bolt, comprising a mounting plate, a bolt body, a gasket and a threaded hole, wherein the bolt body is threadedly connected to the inner wall of the threaded hole, the gasket is sleeved on the outer periphery of the threaded section of the bolt body, and a self-locking mechanism is connected between the mounting plate and the bolt body;

[0007] The self-locking mechanism includes an arc-shaped limiting slot opened on the end surface of the mounting plate body and a rectangular groove opened on the periphery of the bolt body cap body, the inner side wall of the rectangular groove is provided with a placement strip groove, the inner wall of the placement strip groove is slidably connected with a sliding sleeve block, a lap block is fixedly connected between the two sliding sleeve blocks, and the lap block is slidably connected to the inner wall of the rectangular groove, and an arc-shaped limiting plug rod is fixedly connected to the surface of the lap block.

[0008] Furthermore, the self-locking mechanism also includes a fixed rod and a spring, wherein the fixed rod is fixedly connected between the two end walls of the placement strip groove, the spring is sleeved on the periphery of the fixed rod, and the sliding sleeve block is slidably sleeved on the periphery of the fixed rod.

[0009] Furthermore, an inserting hole is provided on the upper end surface of the gasket, and an inserting column is fixedly connected to the lower end surface of the cap body of the bolt body.

[0010] Furthermore, an arc-shaped through groove is opened on the surface of the gasket, and the arc-shaped limiting insertion rod is designed to pass through the arc-shaped through groove, and the design size is matched with the opening size of the arc-shaped through groove.

[0011] Furthermore, one end of the spring is fixedly connected to the end wall of the placement strip groove, and the other end of the spring is fixedly connected to the upper end surface of the sliding sleeve block.

[0012] Furthermore, the plug-in post is inserted into the inner wall of the plug-in hole and has an interference fit with the plug-in hole.

[0013] Beneficial effects of the utility model:

[0014] The utility model provides a self-locking mechanism, so that after the bolt body is screwed into the specified position, the arc-shaped limit rod will be reset and inserted into the arc-shaped limit slot, so that it can no longer be rotated, thereby avoiding the loosening of the bolt body caused by mechanical vibration in the later stage, making it more stable during use.

[0015] The utility model provides a plug-in hole and a plug-in column, and the two are interference-fitted, so that the gasket can play a certain role in limiting after installation, and avoid the situation in which the arc-shaped limiting plug rod cannot be aligned with the arc-shaped through groove due to the fall thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0017] Figure 2 This is a structural schematic diagram of an installation plate body in one embodiment of the utility model;

[0018] Figure 3 This is a structural schematic diagram of a bolt body in one embodiment of the utility model;

[0019] Figure 4 This is a schematic structural diagram of a gasket in one embodiment of the utility model;

[0020] Figure 5 This is an embodiment of the utility model Figure 3 A magnified view of the structure at center.

[0021] In the figure: 1. mounting plate; 2. bolt body; 3. gasket; 4. threaded hole; 5. arc-shaped limit slot; 6. rectangular groove; 7. placement strip groove; 8. fixing rod; 9. spring; 10. sliding sleeve block; 11. overlap block; 12. arc-shaped limit rod; 13. arc-shaped through groove; 14. plug-in hole; 15. plug-in column. DETAILED DESCRIPTION

[0022] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0023] Example

[0024] like Figure 1-Figure 5 As shown, a self-tapping and self-locking bolt proposed in one embodiment of the utility model comprises a mounting plate body 1, a bolt body 2, a gasket 3 and a threaded hole 4, wherein the bolt body 2 is threadedly connected to the inner wall of the threaded hole 4, the gasket 3 is sleeved on the periphery of the threaded section of the bolt body 2, and a self-locking mechanism is connected between the mounting plate body 1 and the bolt body 2; the self-locking mechanism comprises an arc-shaped limiting slot 5 provided on the end surface of the mounting plate body 1 and a rectangular groove 6 provided on the periphery of the cap body of the bolt body 2, the rectangular groove 6 The inner wall is provided with a placement strip groove 7, and the inner wall of the placement strip groove 7 is slidably connected with a sliding sleeve block 10, a lap block 11 is fixedly connected between the two sliding sleeve blocks 10, and the lap block 11 is slidably connected to the inner wall of the rectangular groove 6, and an arc-shaped limiting rod 12 is fixedly connected to the surface of the lap block 11. The surface of the gasket 3 is provided with an arc-shaped through groove 13, and the arc-shaped limiting rod 12 is designed to pass through the arc-shaped through groove 13, and the design size is compatible with the opening size of the arc-shaped through groove 13.

[0025] Furthermore, the locking mechanism also includes a fixed rod 8 and a spring 9, wherein the fixed rod 8 is fixedly connected between the two end walls of the strip groove 7, the spring 9 is sleeved on the periphery of the fixed rod 8, and the sliding sleeve block 10 is slidably sleeved on the periphery of the fixed rod 8, one end of the spring 9 is fixedly connected to the end wall of the strip groove 7, and the other end of the spring 9 is fixedly connected to the upper end surface of the sliding sleeve block 10.

[0026] Among them, by setting the fixing rod 8 and the spring 9, the arc-shaped limit rod 12 can better cooperate with the fixing rod 8, the sliding sleeve block 10 and the overlap block 11 when not subject to force and reset under the rebound force of the spring 9, so that the arc-shaped limit rod 12 can be smoothly inserted into the inner wall of the arc-shaped limit slot 5.

[0027] Furthermore, a plug hole 14 is formed on the upper end surface of the gasket 3 , and a plug column 15 is fixedly connected to the lower end surface of the cap body of the bolt body 2 . The plug column 15 is inserted into the inner wall of the plug hole 14 and has an interference fit with the plug hole 14 .

[0028] Among them, by setting the insertion hole 14 and the insertion column 15, the gasket 3 can be ensured to be fixed to the bolt body 2 after being sleeved on the periphery of the threaded section of the bolt body 2, avoiding separation during use and causing the arc-shaped limiting rod 12 to be unable to smoothly pass through the arc-shaped through groove 13.

[0029] The working principle of the utility model is as follows: when using this self-tapping and self-locking bolt, first, the gasket 3 is sleeved on the outer periphery of the threaded section of the bolt body 2, and then the plug-in column 15 is inserted into the inner wall of the plug-in hole 14, and in this process, the arc-shaped limit rod 12 is allowed to pass through the arc-shaped through groove 13; then the bolt body 2 is screwed into the threaded hole 4. In this process, as the bolt body 2 gradually goes deeper, the arc-shaped limit rod 12 will contact the end face of the mounting plate body 1. At this time, the rotation is continued. When the arc-shaped limit rod 12 is directly above the arc-shaped through groove 13, it will be reset and inserted into the arc-shaped limit slot 5, thereby achieving the purpose of self-locking; if the screw-in depth is not enough, the arc-shaped limit rod 12 can be manually lifted and the bolt body 2 can be continued to be rotated, and the arc-shaped limit rod 12 can be inserted into the arc-shaped limit slot 5 after the next circle or multiple circles.

[0030] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation of this specification. Although it is not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification. At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment", "one embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that "one embodiment" or "one embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of this specification can be appropriately combined. In addition, unless explicitly stated in the claims, the order of processing elements and sequences described in this specification, the use of alphanumeric characters, or the use of other names are not used to limit the order of the processes and methods of this specification.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A self-tapping and self-locking bolt, comprising a mounting plate (1), a bolt body (2), a gasket (3) and a threaded hole (4), wherein the bolt body (2) is threadedly connected to the inner wall of the threaded hole (4), and the gasket (3) is sleeved on the outer periphery of the threaded section of the bolt body (2), characterized in that: A self-locking mechanism is connected between the mounting plate body (1) and the bolt body (2); The self-locking mechanism comprises an arc-shaped limiting slot (5) provided on the end surface of the mounting plate body (1) and a rectangular groove (6) provided on the periphery of the cap body of the bolt body (2); the inner side wall of the rectangular groove (6) is provided with a placement strip groove (7); the inner wall of the placement strip groove (7) is slidably connected to a sliding sleeve block (10); a lap block (11) is fixedly connected between two sliding sleeve blocks (10); the lap block (11) is slidably connected to the inner wall of the rectangular groove (6); and the surface of the lap block (11) is fixedly connected to an arc-shaped limiting plug rod (12).

2. A self-tapping and self-locking bolt according to claim 1, characterized in that: The self-locking mechanism also includes a fixed rod (8) and a spring (9), wherein the fixed rod (8) is fixedly connected between the two end walls of the placement strip groove (7), the spring (9) is sleeved on the periphery of the fixed rod (8), and the sliding sleeve block (10) is slidably sleeved on the periphery of the fixed rod (8).

3. A self-tapping and self-locking bolt according to claim 1, characterized in that: The upper end surface of the gasket (3) is provided with an inserting hole (14), and the lower end surface of the cap body of the bolt body (2) is fixedly connected with an inserting column (15).

4. A self-tapping and self-locking bolt according to claim 1, characterized in that: The surface of the gasket (3) is provided with an arc-shaped through groove (13), and the arc-shaped limiting insertion rod (12) is designed to pass through the arc-shaped through groove (13), and the design size is mutually compatible with the opening size of the arc-shaped through groove (13).

5. A self-tapping and self-locking bolt according to claim 2, characterized in that: One end of the spring (9) is fixedly connected to the end wall of the strip groove (7), and the other end of the spring (9) is fixedly connected to the upper end surface of the sliding sleeve block (10).

6. A self-tapping and self-locking bolt according to claim 3, characterized in that: The plug-in column (15) is inserted into the inner wall of the plug-in hole (14) and is interference-fitted with the plug-in hole (14).

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