Fastener capable of preventing falling off

Abstract

The utility model relates to the field of fasteners, in particular to an anti-falling fastener which comprises a fastener body, the fastener body comprises a fastening bolt and a fastening nut, the outer wall of the fastening bolt is sleeved with a first anti-falling ring and a second anti-falling ring at equal intervals, a clamping convex ring is installed at the top of a second anti-falling assembly, and the clamping convex ring is connected with the fastening nut. A limiting clamping groove is formed in the position, located at the clamping protruding block, of the bottom of the first anti-sliding ring in a matched mode, and clamping assemblies are arranged in the position, located outside the limiting clamping groove, in the first anti-sliding ring at equal intervals in a sliding mode. According to the anti-loosening nut, the wedge-shaped clamping protruding block of the first anti-slipping ring and the clamping groove of the second anti-slipping ring increase the friction force of the connecting position of the nut and an object in the process that the nut and the bolt are fixed on the object, and therefore the anti-loosening capacity and the fastening efficiency of the nut are improved; and meanwhile, the clamping block of the clamping assembly is inserted into the clamping groove located in the clamping through hole, and the connection stability between the wedge-shaped clamping protruding blocks of the first anti-slip ring is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a fastener capable of preventing falling off. Background Art

[0002] Fasteners are a kind of mechanical parts used for fastening and connection, which are widely used. They have various varieties and specifications, different performances and uses, and are highly standardized, serialized and universal. Fasteners include bolts and adapter nuts.

[0003] When the existing bolts and nuts are used to connect and fix objects, when the objects shake, the existing bolts and nuts mostly cling to a single washer to enhance friction, but they are still prone to loosening and falling off. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a fastener that can prevent falling off.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fastener to prevent falling off, comprising a fastener body, the fastener body comprising a fastening bolt and a fastening nut, the outer wall of the fastening bolt is sleeved with a first anti-slip ring and a second anti-slip ring at equal distances, the top of the second anti-slip ring is provided with a clamping convex ring, and the bottom of the first anti-slip ring is located at the clamping convex ring and adapted to be provided with a limited clamping groove, a clamping assembly is slidably provided outside the limited clamping groove in the first anti-slip ring at equal distances, and a wedge-shaped convex block group is installed on the top of the first anti-slip ring and the bottom of the second anti-slip ring;

[0007] A limiting convex ring is installed on the outside of the first anti-slip ring and located on the outside of the clamping assembly, and a fixing cover is screwed on one side of the limiting convex ring.

[0008] In addition, a preferred structure is that a plurality of wedge-shaped clamping protrusions are installed at equal distances on the bottom of the first anti-slip ring outside the clamping groove, and a clamping groove is adapted to be opened at the top of the second anti-slip ring at the wedge-shaped clamping protrusions.

[0009] In addition, a preferred structure is that the clamping assembly includes a limiting ring, a clamping block is installed on one side of the limiting ring, an extension rod is installed on the other side of the limiting ring, and one side of the extension rod passes through the first anti-slip ring and is connected to a fixing ball.

[0010] In addition, a preferred structure is that a sliding cavity is provided in the first anti-slip ring at the limiting ring, a through hole is provided in the first anti-slip ring at the extension rod, and a sliding groove is provided in the first anti-slip ring at the clamping block.

[0011] In addition, a preferred structure is that a clamping groove is formed on the outer wall of the clamping convex ring at the clamping block, and the diameter of the clamping groove is larger than the diameter of the clamping block.

[0012] In addition, a preferred structure is that an external threaded portion is provided on the outside of the limiting convex ring, and an internal threaded portion is adapted to be provided inside the fixing cover at the external threaded portion, and the internal threaded portion is threadedly connected to the external threaded portion.

[0013] The beneficial effects of the utility model are:

[0014] In the utility model, the wedge-shaped clamping protrusion of the first anti-slip ring and the clamping groove of the second anti-slip ring increase the friction between the nut and the object during the process of fixing the nut and the bolt on the object, thereby improving the anti-loosening ability and fastening efficiency of the nut. At the same time, the clamping block of the clamping assembly is inserted into the clamping groove located in the clamping through hole, thereby ensuring the connection stability between the wedge-shaped clamping protrusions of the first anti-slip ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a fastener for preventing falling off proposed by the utility model;

[0016] Figure 2 A schematic diagram of the structure of the first anti-slip ring and the second anti-slip ring being separated;

[0017] Figure 3 It is a schematic structural diagram of the cross section of the first anti-slip ring.

[0018] In the figure: 1. fastener body; 2. first anti-falling ring; 21. wedge-shaped clamping protrusion; 22. limiting protrusion ring; 23. limiting clamping groove; 3. second anti-falling ring; 31. clamping protrusion ring; 32. clamping groove; 4. wedge-shaped protrusion group; 5. fixing cover; 6. clamping assembly. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-3A fastener to prevent falling off includes a fastener body 1, the fastener body 1 includes a fastening bolt and a fastening nut, the outer wall of the fastening bolt is equidistantly sleeved with a first anti-slip ring 2 and a second anti-slip ring 3, the top of the second anti-slip ring 3 is installed with a clamping convex ring 31, and the bottom of the first anti-slip ring 2 is located at the clamping convex ring 31 and is adapted to provide a limiting clamping groove 23. It is worth noting that the specific structure, connection method and working method of the fastener body 1 and the fastening bolt and fastening nut are all prior arts, and do not belong to the main technical problems to be solved in this technical solution, so they will not be elaborated in this technical solution.

[0021] In addition, a clamping assembly 6 is slidably arranged at equal distances outside the limiting clamping groove 23 in the first anti-slip ring 2, and a wedge-shaped protrusion group 4 is installed on the top of the first anti-slip ring 2 and the bottom of the second anti-slip ring 3, wherein the wedge-shaped protrusion group 4 is a staggered wedge-shaped extension protrusion.

[0022] A limiting convex ring 22 is installed outside the first anti-slip ring 2 and outside the clamping assembly 6 , and a fixing cover 5 is screwed on one side of the limiting convex ring 22 .

[0023] In addition, a plurality of wedge-shaped locking protrusions 21 are installed at equal distances outside the locking groove 32 at the bottom of the first anti-slip ring 2 , and a locking groove 32 is adapted to be opened at the top of the second anti-slip ring 3 at the wedge-shaped locking protrusions 21 .

[0024] Meanwhile, the clamping assembly 6 comprises a limiting ring, a clamping block is installed on one side of the limiting ring, an extension rod is installed on the other side of the limiting ring, and one side of the extension rod passes through the first anti-slip ring 2 and is connected to a fixing ball.

[0025] In addition, a sliding cavity is provided in the first anti-slip ring 2 at the limiting ring, a through hole is provided in the first anti-slip ring 2 at the extension rod, and a sliding groove is provided in the first anti-slip ring 2 at the clamping block.

[0026] At the same time, a clamping groove is formed on the outer wall of the clamping convex ring 31 at the clamping block, and the diameter of the clamping groove is greater than the diameter of the clamping block.

[0027] Furthermore, an external threaded portion is disposed on the exterior of the limiting protruding ring 22 , and an internal threaded portion is adapted to be disposed inside the fixing cover 5 at the location of the external threaded portion, and the internal threaded portion is threadedly connected to the external threaded portion.

[0028] In the present embodiment, the wedge-shaped clamping protrusion 21 of the first anti-slip ring 2 and the clamping groove 32 of the second anti-slip ring 3 are clamped together, and at the same time, the friction between the nut and the object is increased by the wedge-shaped protrusion group 4 during the process of fixing the nut and the bolt on the object, thereby improving the anti-loosening ability and fastening efficiency of the nut. At the same time, the clamping block of the clamping assembly 6 is inserted into the clamping groove located in the clamping through hole 31 to ensure the connection stability between the wedge-shaped clamping protrusions 21 of the first anti-slip ring 2.

[0029] In the utility model, the wedge-shaped clamping protrusion 21 of the first anti-slip ring 2 and the clamping groove 32 of the second anti-slip ring 3 increase the friction force at the connection between the nut and the object during the process of fixing the nut and the bolt on the object, thereby improving the anti-loosening ability and fastening efficiency of the nut. At the same time, when the clamping block of the clamping assembly 6 is inserted into the clamping groove located in the clamping through hole 31, the connection stability between the wedge-shaped clamping protrusion 21 of the first anti-slip ring 2 is ensured.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fastener for preventing falling off, comprising a fastener body (1), characterized in that: The fastener body (1) comprises a fastening bolt and a fastening nut, the outer wall of the fastening bolt is sleeved with a first anti-slip ring (2) and a second anti-slip ring (3) at equal distances, the top of the second anti-slip ring (3) is provided with a clamping convex ring (31), and the bottom of the first anti-slip ring (2) is located at the clamping convex ring (31) and is adapted to be provided with a limit clamping groove (23), a clamping assembly (6) is slidably provided outside the limit clamping groove (23) in the first anti-slip ring (2) at equal distances, and a wedge-shaped convex block group (4) is installed on the top of the first anti-slip ring (2) and the bottom of the second anti-slip ring (3); A limiting convex ring (22) is installed on the outside of the first anti-slip ring (2) and located on the outside of the clamping assembly (6), and a fixing cover (5) is screwed on one side of the limiting convex ring (22).

2. The anti-falling fastener according to claim 1, characterized in that: A plurality of wedge-shaped locking protrusions (21) are installed at equal distances outside the locking groove (32) at the bottom of the first anti-slip ring (2), and a locking groove (32) is adapted to be opened at the top of the second anti-slip ring (3) at the wedge-shaped locking protrusion (21).

3. The anti-falling fastener according to claim 1, characterized in that: The clamping assembly (6) comprises a limiting ring, a clamping block is installed on one side of the limiting ring, an extension rod is installed on the other side of the limiting ring, and one side of the extension rod passes through the first anti-slip ring (2) and is connected to a fixing ball.

4. The anti-falling fastener according to claim 1, characterized in that: A sliding cavity is provided in the first anti-slip ring (2) at the limiting ring, a through hole is provided in the first anti-slip ring (2) at the extension rod, and a sliding groove is provided in the first anti-slip ring (2) at the clamping block.

5. The anti-falling fastener according to claim 1, characterized in that: The outer wall of the clamping convex ring (31) is provided with a clamping groove at the clamping block, and the diameter of the clamping groove is greater than the diameter of the clamping block.

6. The anti-falling fastener according to claim 1, characterized in that: The limiting convex ring (22) is provided with an external threaded portion on the outside, and the fixing cover (5) is provided with an internal threaded portion at the external threaded portion, and the internal threaded portion is threadedly connected with the external threaded portion.

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