Anti-falling bolt

Abstract

The utility model discloses an anti-falling bolt, and belongs to the technical field of bolts. The device mainly comprises a screw rod which is provided with a nut; the nut is in threaded connection with the screw rod; the anti-falling assembly is connected to the screw rod in a sleeving mode and comprises a second gasket, a first gasket and a second gasket, and the second gasket is connected to the screw rod in a sleeving mode; the clamping plates are mounted on the second gaskets; the four groups of first springs are mounted on the second gaskets; the collecting box is arranged at the lower end of the screw rod; the cotter pin is inserted into the nut; and the reinforcing assembly is connected to one end of the first spring, and the reinforcing assembly is provided with a third gasket attached to the lower surface of the workpiece to be fastened. According to the anti-falling bolt, the second gasket and the clamping plate are arranged; and through arrangement of a cotter pin, a first spring, a supporting column, a buckling block, a third gasket, a friction surface and a buckling hole, the situation that when a to-be-fastened workpiece is vibrated, a screw rod is prone to shaking, and consequently the nut is slipped is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of bolts, and in particular to an anti-dropping bolt. Background Art

[0002] A bolt is a mechanical part, a cylindrical threaded fastener that is matched with a nut. A type of fastener consisting of a head and a screw (a cylinder with external threads), which must be matched with a nut to fasten two parts with through holes. This type of connection is called a bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection;

[0003] For example, the patent with publication number CN210830109U specifically discloses a wear-resistant bolt, including a bolt body, wherein the bolt body includes a screw rod and a nut, and also includes a gasket sleeved on the screw rod, wherein a graphite layer is provided on a surface of the nut close to the screw rod, and a plurality of first guide grooves are provided on a surface of the gasket close to the nut, wherein the first guide grooves penetrate the surface of the gasket close to the axis of the screw rod. Through the above arrangement, the occurrence of thread necrosis of the bolt can be reduced.

[0004] When the nut of the above patent is used, when the bolt is used independently or in conjunction with the nut to fasten the structural part, the bolt and the nut are prone to reverse rotation due to external force, especially in a continuous vibration environment. When the nut falls off, the bolt will eventually fall off from the structural part, posing a great safety hazard. To this end, we provide a kind of anti-falling bolt to solve the above problems.

[0005] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0006] Based on the above problems existing in the prior art, the problem to be solved by the present application is: to provide an anti-slip bolt to solve the problem that when the workpiece to be fastened is subjected to vibration, the screw rod is prone to shake, thereby causing the nut to slip.

[0007] The technical solution adopted by the present application to solve its technical problem is: an anti-slip bolt. Mainly including: a screw, the screw having a nut; a nut, the nut being threadedly connected to the screw; an anti-slip assembly, the anti-slip assembly being sleeved on the screw, the anti-slip assembly including: a second gasket, the second gasket being sleeved on the screw; four groups of clamps, the clamps being mounted on the second gasket; four groups of first springs, the first springs being mounted on the second gasket; a collection box, the collection box being arranged at the lower end of the screw; a cotter pin, the cotter pin being inserted into the nut; a reinforcement assembly, the reinforcement assembly being connected to one end of the first spring, the reinforcement assembly having a third gasket that fits on the lower surface of the workpiece to be fastened.

[0008] Furthermore, a first gasket is sleeved on the screw rod.

[0009] Furthermore, the third gasket has a friction surface.

[0010] Furthermore, a pillar is installed on the second gasket and in the first spring, the pillar has a hollow groove, a second spring is installed in the hollow groove, and a buckle block is installed at one end of the second spring.

[0011] Furthermore, the third gasket is provided with a buckle hole that matches the size of the buckle block.

[0012] The beneficial effect of the present application is that the present application provides an anti-slip bolt, which prevents the screw from shaking easily when the workpiece to be fastened is vibrated, thereby causing the nut to slip through the arrangement of a second gasket, a clamping plate, a cotter pin, a first spring, a support, a buckle block, a third gasket, a friction surface and a buckle hole.

[0013] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 This is an overall schematic diagram of an anti-drop bolt in this application;

[0016] Figure 2 for Figure 1 Explosion diagram of

[0017] Figure 3 for Figure 2 Schematic diagram of the local structure at A in FIG.

[0018] Among them, the reference numerals in the figure are:

[0019] 1. Screw; 101. Nut; 102. Nut; 103. First gasket; 2. Anti-slip assembly; 201. Second gasket; 202. Clamp; 203. Split pin; 204. First spring; 205. Pillar; 206. Buckle block; 3. Reinforcement assembly; 301. Third gasket; 302. Friction surface; 303. Buckle hole. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0022] like Figure 1-Figure 3 As shown, the present application provides an anti-dropping bolt, comprising a screw rod 1, one end of which has a nut 101, a first gasket 103 is sleeved on the screw rod 1, and the first gasket 103 is suitable for fitting on the upper surface of a workpiece to be fastened;

[0023] A nut 102 is threadedly connected to the screw rod 1, and the nut 102 is used to increase the connection firmness of the screw rod 1 to the workpiece to be fastened. An anti-slip component 2 is sleeved on the screw rod 1, and the anti-slip component 2 is used to prevent the screw rod 1 from falling off from the workpiece to be fastened;

[0024] The anti-slip assembly 2 includes a second gasket 201 sleeved on the screw 1 and attached to the nut 102, four groups of clamping plates 202 are fixedly installed on the second gasket 201, and the clamping plates 202 are suitable for clamping on the nut 102, and four groups of first springs 204 are fixedly installed on the second gasket 201;

[0025] A reinforcement component 3 is connected to one end of the four groups of first springs 204, and the reinforcement component 3 includes a third gasket 301 connected to one end of the four groups of first springs 204. The third gasket 301 has a friction surface 302, and the friction surface 302 is suitable for contacting the lower surface of the workpiece to be fastened. The third gasket 301 is suitable for approaching or moving away from the lower surface of the workpiece to be fastened under the action of the four groups of first springs 204, so as to increase the friction between the nut 102 and the workpiece to be fastened;

[0026] A cotter pin 203 is inserted into the nut 102, and the cotter pin 203 passes through the screw rod 1 and is connected to the nut 102. The cotter pin 203 is suitable for preventing the nut 102 from rotating on the nut 102;

[0027] A support 205 is fixedly installed on the second gasket 201 and in the first spring 204. The support 205 has a hollow groove, in which the second spring is fixedly installed. A buckle block 206 is fixedly installed at one end of the second spring. A buckle hole 303 having a size matching that of the buckle block 206 is opened on the third gasket 301.

[0028] The buckle block 206 is adapted to be buckled into the buckle hole 303 under the action of the second spring, thereby making the friction surface 302 in close contact with the workpiece to be fastened;

[0029] Working principle:

[0030] When the bolt is in use, first, the screw rod 1 is turned to the specified position of the workpiece to be fastened, and the nut 101 and the first gasket 103 are fitted on the workpiece to be fastened, and then the nut 102 is rotated, the nut 102 pushes the second gasket 201, and the second gasket 201 pushes the third gasket 301 to fit the lower surface of the workpiece to be fastened, and the first spring 204 and the buckle block 206 are acted upon by the second spring so that the friction surface 302 is tightly attached to the lower surface of the workpiece to be fastened, so as to prevent the screw rod 1 from shaking easily when the workpiece to be fastened is subjected to vibration, thereby causing the nut 102 to slip, and at the same time, the cotter pin 203 is inserted into the nut 102 and the screw rod 1 to prevent the nut 102 from sliding off the screw 1.

[0031] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An anti-drop bolt, characterized in that: include: A screw rod (1), the screw rod (1) having a nut (101); a nut (102), the nut (102) being threadedly connected to the screw rod (1); An anti-slip assembly (2), the anti-slip assembly (2) being sleeved on the screw rod (1), the anti-slip assembly (2) comprising: a second gasket (201), the second gasket (201) being sleeved on the screw rod (1); four sets of clamping plates (202), the clamping plates (202) being mounted on the second gasket (201); Four groups of first springs (204), the first springs (204) being mounted on the second gasket (201); A collecting box (401), the collecting box (401) being arranged at the lower end of the screw rod (1); A cotter pin (203), the cotter pin (203) being inserted into the nut (102); A reinforcement component (3) connected to one end of the first spring (204), the reinforcement component (3) comprising a third gasket (301) affixed to the lower surface of a workpiece to be fastened.

2. The anti-drop bolt according to claim 1, characterized in that: A first gasket (103) is sleeved on the screw rod (1).

3. The anti-drop bolt according to claim 2, characterized in that: The third gasket (301) has a friction surface (302).

4. The anti-drop bolt according to claim 3, characterized in that: A support (205) is installed on the second gasket (201) and is located inside the first spring (204). The support (205) has a hollow groove. A second spring is installed in the hollow groove. A buckle block (206) is installed at one end of the second spring.

5. The anti-drop bolt according to claim 4, characterized in that: The third gasket (301) is provided with a buckle hole (303) whose size matches that of the buckle block (206).

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