Lock nut

Abstract

The locknut comprises a nut body, a base, a protruding portion, a threaded hole, a hole and a locking assembly, the lower portion of the nut body is connected with the base of a circular structure, the upper portion of the nut body is connected with the protruding portion of a circular structure, the nut body, the base and the protruding portion are of an integrated structure, and the threaded hole is formed in the nut body. A threaded hole is formed in the nut body, the threaded hole is communicated with the base and the protruding part, a plurality of holes are formed in the side wall of the protruding part, an anti-loosening assembly matched with the holes is arranged in the nut body, a connecting part is arranged below the nut body and located between the nut body and the base, and the connecting part is connected with the nut body. According to the anti-loosening nut, the anti-loosening effect of the nut can be improved through cooperation of the anti-loosening assembly and the damping spring, and the service life of the nut is prolonged by additionally arranging the waterproof layer and the corrosion-resistant layer.

Description

[Technical field]

[0001] The utility model relates to the technical field of fasteners, in particular to the technical field of a locking nut. [Background technology]

[0002] A nut is a basic mechanical fastener. Its main function is to be used in conjunction with a screw or other fasteners to connect and fix two or more parts. The nut has threads inside that match the threads on the screw. Rotating the nut can tighten it on the screw, thereby tightly connecting different parts together. Nuts are widely used in various fields, such as automobile manufacturing, construction, electromechanics, aerospace, etc. In these fields, nuts are often used to fix mechanical equipment components, connect pipes and structural elements, and tighten screws.

[0003] Since the end faces of conventional nuts are mostly smooth planes, when this nut is fastened with a bolt or a screw on two parts with through holes, the friction between it and the connected parts will be very small. Especially when subjected to vibration, this nut can easily loosen along the threads on the bolt or screw.

[0004] To solve the problems raised in the background technology, publication number CN202732619U discloses a locking nut, including a nut body, an axial threaded through hole is formed on the nut body, wherein two radial threaded through holes are formed on the side wall of the nut body for tightening screws to be screwed in, the two radial threaded through holes are symmetrical and coaxial, and two radial threaded through holes are formed on the side wall of the nut body for tightening screws to be screwed in. Therefore, after the locking nut of the utility model is tightened onto the bolt or screw, people can use two tightening screws to be screwed into the two radial threaded through holes respectively, and finally make the head of the tightening screw press against the bolt or screw. In this way, the locking nut of the utility model will be difficult to loosen itself along the thread on the bolt or screw when subjected to vibration. However, the structure still has the following shortcomings:

[0005] 1. Although this structure uses a clamping screw to be screwed into the threaded through hole and uses the head of the clamping screw to abut against the screw rod, the clamping screws are located on both sides of the screw rod, resulting in the force points being on the side walls of the screw rod, which results in insufficient force points. Therefore, when subjected to severe vibration, it is still easy to loosen.

[0006] 2. The lack of waterproof and anti-corrosion structure makes it easy to rust, thereby reducing the service life of the nut. [Contents of the utility model]

[0007] The purpose of the utility model is to solve the problems in the prior art and to provide an anti-loosening nut, which can utilize an anti-loosening component in conjunction with a shock-absorbing spring to improve the anti-loosening effect of the nut, and add a waterproof layer and a corrosion-resistant layer to extend the service life of the nut.

[0008] To achieve the above-mentioned purpose, the utility model proposes an anti-loosening nut, including a nut body, a base, a raised portion, a threaded hole, a hole, and an anti-loosening component. The bottom of the nut body is connected to a base with a circular structure, and the top of the nut body is connected to a raised portion with a circular structure. The nut body, the base, and the raised portion are an integrated structure. A threaded hole is provided inside the nut body, and the threaded hole is communicated with the base and the raised portion. A plurality of holes are opened on the side wall of the raised portion, and an anti-loosening component matching the holes is provided in the nut body.

[0009] Preferably, a connecting portion is provided below the nut body, the connecting portion is located between the nut body and the base, and a shock-absorbing spring is sleeved on the outside of the connecting portion.

[0010] Preferably, there are four holes, two of which are symmetrical and coaxially arranged, and another two of which are also symmetrical and coaxially arranged.

[0011] Preferably, the anti-loosening assembly includes a threaded rod, a pin hole, and a latch rod. The side wall of the threaded rod is symmetrically provided with pin holes, the pin holes pass through the interior of the threaded rod, and the pin hole is equipped with a latch rod. The latch rod passes through the hole and the pin hole in sequence and extends to the outside of the threaded rod, and the pin hole has a circular structure.

[0012] Preferably, the diameter of the pin hole is the same as the diameter of the hole, and the pin hole corresponds to the hole.

[0013] Preferably, a waterproof layer is provided on the surface of the nut body, a corrosion-resistant layer is provided on the surface of the waterproof layer, the waterproof layer adopts polyurethane waterproof coating, and the corrosion-resistant layer adopts polyurethane anti-corrosion coating.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model can improve the anti-loosening effect of the nut by using an anti-loosening component in conjunction with a shock-absorbing spring. First, the nut body and the threaded rod are installed, and then the hole on the raised portion is symmetrically aligned with the pin hole on the threaded rod, and a latch rod is used to insert the hole and the pin hole in sequence, and extend to the other end of the threaded rod, so that the force point of the latch rod is maintained at the inner center position of the nut body, and the shock-absorbing spring is used to further absorb and disperse the vibration force, thereby reducing the force of the vibration, avoiding loosening caused by excessive vibration force, thereby improving the anti-loosening effect, and solving the problem that the nut is prone to loosening when subjected to severe vibration.

[0016] 2. The utility model can extend the service life of the nut body by using a waterproof layer in conjunction with a corrosion-resistant layer. The waterproof layer can prevent the nut body from rusting due to the impact of external rainwater, and the corrosion-resistant layer can prevent the nut body from being corroded by external harmful substances, thereby increasing the service life of the nut body and solving the problem of low service life of the nut.

[0017] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0018] Figure 1 This is a front view of a locking nut of the utility model;

[0019] Figure 2 It is an exploded view of a locking nut of the utility model;

[0020] Figure 3 It is a schematic diagram of an anti-loosening component of an anti-loosening nut of the utility model;

[0021] Figure 4 It is a cross-sectional schematic diagram of a locking nut of the utility model;

[0022] In the figure: 1-nut body, 2-base, 3-protrusion, 4-threaded hole, 5-hole, 6-anti-loosening component, 61-threaded rod, 62-pin hole, 63-pin rod, 7-connecting part, 8-shock-absorbing spring, 9-waterproof layer, 10-corrosion-resistant layer. [Specific implementation method]

[0023] See also Figures 1 to 4 The utility model provides an anti-loosening nut, comprising a nut body 1, a base 2, a raised portion 3, a threaded hole 4, a hole 5, and an anti-loosening component 6. The base 2 with a circular structure is connected to the bottom of the nut body 1, and the raised portion 3 with a circular structure is connected to the top of the nut body 1. The nut body 1, the base 2, and the raised portion 3 are an integrated structure. A threaded hole 4 is provided inside the nut body 1, and the threaded hole 4 is communicated with the base 2 and the raised portion 3. A plurality of holes 5 are opened on the side wall of the raised portion 3, and an anti-loosening component 6 matching the hole 5 is provided in the nut body 1.

[0024] See also Figure 2The utility model provides an anti-loosening nut, a connecting portion 7 is provided below the nut body 1, the connecting portion 7 is located between the nut body 1 and the base 2, a shock-absorbing spring 8 is sleeved on the outside of the connecting portion 7, there are four holes 5, two of which are symmetrical and coaxially arranged, and the other two holes 5 are also symmetrical and coaxially arranged. The shock-absorbing spring 8 further absorbs and disperses the vibration force, thereby reducing the force of the vibration, avoiding loosening caused by excessive vibration force, and thus improving the anti-loosening effect.

[0025] See also Figure 3 The utility model provides an anti-loosening nut, the anti-loosening component 6 includes a threaded rod 61, a pin hole 62, and a latch rod 63. The side wall of the threaded rod 61 is symmetrically provided with a pin hole 62, the pin hole 62 passes through the interior of the threaded rod 61, and the pin hole 62 is equipped with a latch rod 63. The latch rod 63 passes through the hole 5 and the pin hole 62 in sequence and extends to the outside of the threaded rod 61, and the pin hole 62 is a circular structure. The aperture of the pin hole 62 is the same as the aperture of the hole 5, and the pin hole 62 corresponds to the hole 5. The anti-loosening component 6 is used in conjunction with the shock-absorbing spring 8 to improve the anti-loosening effect of the nut body 1.

[0026] See also Figure 4 The utility model discloses an anti-loosening nut, wherein a waterproof layer 9 is arranged on the surface of the nut body 1, and a corrosion-resistant layer 10 is arranged on the surface of the waterproof layer 9. The waterproof layer 9 adopts a polyurethane waterproof coating, and the corrosion-resistant layer 10 adopts a polyurethane anti-corrosion coating. By using the waterproof layer 9 and the corrosion-resistant layer 10 in coordination, the service life of the nut body 1 can be extended. The waterproof layer 9 can prevent the nut body 1 from rusting due to the impact of external rainwater, and the corrosion-resistant layer 10 can prevent the nut body 1 from being corroded by external harmful substances, thereby improving the service life of the nut body 1.

[0027] Working process of this utility model:

[0028] During the working process of the anti-loosening nut of the utility model, the nut body 1 and the threaded rod 61 are first installed, and then the hole 5 on the protrusion 3 is symmetrical with the pin hole 62 on the threaded rod 61, and the latch rod 63 is inserted into the hole 5 and the pin hole 62 in sequence, and extends to the other end of the threaded rod 61, so that the force point of the latch rod 63 is maintained at the inner center position of the nut body 1, and cooperates with the shock-absorbing spring 8 to further absorb and disperse the vibration force, thereby reducing the force of vibration, avoiding loosening caused by excessive vibration force, and thus improving the anti-loosening effect. Through the coordinated use of the waterproof layer 9 and the corrosion-resistant layer 10, the service life of the nut body 1 can be extended, the waterproof layer 9 can prevent the nut body 1 from being rusted due to the impact of external rainwater, and the corrosion-resistant layer 10 can prevent the nut body 1 from being corroded by external harmful substances, thereby improving the service life of the nut body 1.

[0029] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A locking nut, characterized in that: The invention comprises a nut body (1), a base (2), a raised portion (3), a threaded hole (4), a hole (5), and an anti-loosening component (6), wherein the base (2) having a circular structure is connected to the bottom of the nut body (1), and the raised portion (3) having a circular structure is connected to the top of the nut body (1), wherein the nut body (1), the base (2), and the raised portion (3) are an integrated structure, wherein a threaded hole (4) is provided inside the nut body (1), wherein the threaded hole (4) is communicated with the base (2) and the raised portion (3), and a plurality of side walls of the raised portion (3) are provided. A hole (5) is formed in the nut body (1), and an anti-loosening component (6) matched with the hole (5) is arranged in the nut body (1), and the anti-loosening component (6) comprises a threaded rod (61), a pin hole (62), and a latch rod (63). The side wall of the threaded rod (61) is symmetrically provided with a pin hole (62), and the pin hole (62) passes through the interior of the threaded rod (61). The pin hole (62) is provided with a latch rod (63), and the latch rod (63) passes through the hole (5) and the pin hole (62) in sequence and extends to the outside of the threaded rod (61), and the pin hole (62) is in a circular structure.

2. A locking nut according to claim 1, characterized in that: A connecting portion (7) is provided below the nut body (1), the connecting portion (7) is located between the nut body (1) and the base (2), and a shock absorbing spring (8) is sleeved outside the connecting portion (7).

3. A locking nut according to claim 1, characterized in that: There are four holes (5), two of which are symmetrical and coaxially arranged, and another two of which are symmetrical and coaxially arranged.

4. A locking nut according to claim 1, characterized in that: The diameter of the pin hole (62) is the same as the diameter of the hole (5), and the pin hole (62) corresponds to the hole (5).

5. The anti-loosening nut according to claim 1, characterized in that: The surface of the nut body (1) is provided with a waterproof layer (9), and the surface of the waterproof layer (9) is provided with a corrosion-resistant layer (10). The waterproof layer (9) adopts a polyurethane waterproof coating, and the corrosion-resistant layer (10) adopts a polyurethane anti-corrosion coating.

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