Nylon locking nut

Abstract

The utility model discloses a nylon locking nut which comprises a nut body, a nut inner seat, a mounting groove, a nylon ring, a nut base and a limiting assembly, the nut inner seat is arranged on the lower portion of the interior of the nut body, and the mounting groove used for clamping the nylon ring is formed in the upper portion of the interior of the nut body. The outer side wall of the nylon ring is tightly attached to the inner side wall of the nut body, a nut base is connected to the lower portion of the outer portion of the nut body, limiting assemblies are symmetrically arranged on the nylon ring, internal threads are arranged in the nut inner base and the nut base, and the nut body, the nut inner base and the nut base are of an integrated structure. Threaded holes used for screwing in the limiting assembly are formed in the upper portion of the nut inner base, the threaded holes are symmetrically arranged, the anti-loosening performance of the nut body can be improved, the nylon ring is prevented from being disengaged, the drainage groove is formed in the outer side wall of the nylon ring, and part of water can be prevented from remaining in the nut body.

Description

[Technical field]

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

[0002] Nylon locking nut is a part that a circle of elastic nylon is put on the outside of the hexagonal nut. The nylon is squeezed when tightened to generate friction to prevent loosening. Its working principle is based on the friction of the nylon ring. When external force acts on the thread, the nylon ring is squeezed and fits with the thread to form an anti-rotation torque, thereby achieving the effect of preventing loosening. Nylon locking nuts are generally used in fastening occasions that require safety and are not easy to loosen, such as bolt fastening in mechanical equipment such as automobiles, motorcycles, and bicycles. It can prevent the bolts from loosening due to vibration and impact, and can also prevent leakage. It is a simple and practical part. In short, nylon locking nuts are simple, easy to use, safe and reliable, and are widely used in the fastening field of various mechanical equipment.

[0003] When the existing nut is installed and turned, the bolt will hit the nylon washer. Since the nylon washer has insufficient pressing force on the upper end surface of the outer hexagon, it is easy to rotate, resulting in assembly difficulties. The connection between the ordinary nut and the bolt is also prone to loosening and coming off when subjected to a certain impact, and has poor self-locking ability.

[0004] In order to solve the problems raised in the background technology, publication number CN204664107U discloses a nylon locking nut, including a hexagonal nut body and an annular structure, the annular structure is arranged at the upper end of the hexagonal nut body, the hexagonal nut body and the annular structure are an integrally formed structure, a threaded hole is provided inside the hexagonal nut body, when the nut is screwed into the bolt, after the locking force is increased, the nylon is embedded in the parts of the bolt, and the locked nylon washer fills the gaps of the bolts at both ends, thereby playing a locking role, the locked nut cannot be screwed out again, is resistant to vibration, and has a strong anti-loosening ability, the nylon washer and the annular groove are locked by a groove, which further increases the self-locking ability of the nut, but the structure still has the following shortcomings:

[0005] 1. Although this structure uses locking force to embed nylon into the bolt components, nuts are widely used in large-scale mechanical equipment. Therefore, the dynamic load they are subjected to is also large, which can easily cause the nylon washer to fall off, resulting in low anti-loosening performance and low safety of the structure.

[0006] 2. Because the nylon washers in this structure fill the gaps between the bolts at both ends, when encountering extreme weather, moisture cannot be discharged quickly, which makes it easy for rust to occur. [Contents of the utility model]

[0007] The purpose of the utility model is to solve the problems in the prior art and to propose a nylon locking nut which can improve the anti-loosening performance of the nut body and prevent the nylon ring from falling out. A drainage groove is provided on the outer wall of the nylon ring to prevent some moisture from remaining inside the nut body.

[0008] To achieve the above-mentioned purpose, the utility model proposes a nylon locking nut, comprising a nut body, a nut inner seat, a mounting groove, a nylon ring, a nut base, and a limit assembly. A nut inner seat is provided at the lower interior of the nut body, a mounting groove for the nylon ring to be inserted is provided at the upper interior of the nut body, the outer side wall of the nylon ring is tightly attached to the inner side wall of the nut body, a nut base is connected to the lower exterior of the nut body, and a limit assembly is symmetrically provided on the nylon ring.

[0009] Preferably, the interiors of the nut inner seat and the nut base are both provided with internal threads, and the nut body, the nut inner seat and the nut base are an integrated structure.

[0010] Preferably, threaded holes for screwing the limiting assembly into are provided above the inner seat of the nut, and the threaded holes are symmetrically arranged.

[0011] Preferably, the nylon ring is provided with a through hole for the limiting assembly to pass through, the aperture of the through hole is the same as the aperture of the threaded hole, and the through hole is circular in structure and symmetrically arranged.

[0012] Preferably, the limit assembly includes a limit rod, a rotating head, and an external thread. One end of the limit rod passes through the through hole, the threaded hole and the inner seat of the nut in sequence, and is threadedly connected. The top end of the limit rod is connected to the rotating head, and the rotating head has a cross-shaped structure. The outer wall of the limit rod is provided with an external thread, and the external thread is adapted to the threaded hole.

[0013] Preferably, the outer side wall of the nylon ring is provided with a plurality of drainage grooves, the drainage grooves are in a square structure, and the drainage grooves are distributed in a circular shape.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model can improve the anti-loosening performance of the nut body through the coordinated use of the through hole, the threaded hole and the limit assembly. First, the nylon ring is inserted into the interior of the nut body through the installation groove, and then the limit rod is inserted into the through hole on the nylon ring, and then inserted into the threaded hole on the nut inner seat through the through hole, and then the rotating head is rotated, and the rotating head drives the limit rod to rotate until the limit rod is completely screwed into the threaded hole, and the external thread on the limit rod is threadedly connected with the threaded hole, thereby improving the firm effect between the nylon ring and the nut body, preventing the nylon ring from falling off, increasing the anti-loosening performance, and solving the problem of the nylon ring falling off when the nut body is subjected to a large dynamic load.

[0016] 2. The utility model can prevent some moisture from remaining inside the nut body by providing a drainage groove. When the nut body encounters extreme weather during use, the moisture can flow out from the drainage groove on the outer wall of the nylon ring, preventing some moisture from remaining and causing the nut body to rust, thereby extending the service life of the nut body and solving the problem that the nut cannot quickly drain moisture during use.

[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 nylon locking nut of the utility model;

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

[0020] Figure 3 It is a schematic diagram of a limiting component of a nylon locking nut of the utility model;

[0021] Figure 4 It is a schematic diagram of a nylon ring of a nylon locking nut of the utility model;

[0022] In the figure: 1-nut body, 2-nut inner seat, 3-mounting groove, 4-nylon ring, 5-nut base, 6-limiting assembly, 61-limiting rod, 62-rotating head, 63-external thread, 7-internal thread, 8-threaded hole, 9-through hole, 10-drainage groove. [Specific implementation method]

[0023] See also Figures 1 to 4The utility model discloses a nylon locking nut, comprising a nut body 1, a nut inner seat 2, a mounting groove 3, a nylon ring 4, a nut base 5, and a limiting component 6. A nut inner seat 2 is arranged at the lower part of the nut body 1, a mounting groove 3 for the nylon ring 4 to be inserted is arranged at the upper part of the nut body 1, the outer wall of the nylon ring 4 is tightly attached to the inner wall of the nut body 1, a nut base 5 is connected to the lower part of the outside of the nut body 1, a limiting component 6 is symmetrically arranged on the nylon ring 4, and internal threads 7 are arranged inside the nut inner seat 2 and the nut base 5. The nut body 1, the nut inner seat 2, and the nut base 5 are an integrated structure, and a threaded hole 8 for screwing the limiting component 6 into is opened above the nut inner seat 2, and the threaded holes 8 are symmetrically arranged.

[0024] See also Figure 2 and Figure 3 The utility model provides a nylon locking nut, the limiting assembly 6 includes a limiting rod 61, a rotating head 62, and an external thread 63. One end of the limiting rod 61 passes through the through hole 9 and the threaded hole 8 in sequence and is threadedly connected to the nut inner seat 2. The top of the limiting rod 61 is connected with a rotating head 62, and the rotating head 62 is a cross-shaped structure. The outer wall of the limiting rod 61 is provided with an external thread 63, and the external thread 63 is adapted to the threaded hole 8. The limiting rod 61 is inserted into the through hole 9 on the nylon ring 4, and is inserted into the threaded hole 8 on the nut inner seat 2 through the through hole 9, and then the rotating head 62 is rotated. The rotating head 62 drives the limiting rod 61 to rotate until the limiting rod 61 is completely screwed into the threaded hole 8, and the external thread 63 on the limiting rod 61 is threadedly connected to the threaded hole 8, thereby improving the firm effect between the nylon ring 4 and the nut body 1 and preventing the nylon ring 4 from falling out.

[0025] See also Figure 4 The utility model discloses a nylon locking nut, wherein a through hole 9 for a limiting component 6 to pass through is formed on the nylon ring 4, and the aperture of the through hole 9 is the same as the aperture of the threaded hole 8, and the through hole 9 is in a circular structure and is symmetrically arranged, and a plurality of drainage grooves 10 are formed on the outer wall of the nylon ring 4, and the drainage grooves 10 are in a square structure and are distributed in a circular shape. By providing the drainage grooves 10, part of the moisture can be prevented from remaining inside the nut body 1. When the nut body 1 encounters extreme weather during use, the moisture can flow out from the drainage grooves 10 on the outer wall of the nylon ring 4, so as to prevent part of the moisture from remaining and causing the nut body 1 to rust, thereby extending the service life of the nut body 1.

[0026] Working process of this utility model:

[0027] During the working process of the nylon locking nut of the utility model, the nylon ring 4 is first inserted into the interior of the nut body 1 through the installation groove 3, and then the limiting rod 61 is inserted into the through hole 9 on the nylon ring 4, and then inserted into the threaded hole 8 on the nut inner seat 2 through the through hole 9, and then the rotating head 62 is rotated, and the rotating head 62 drives the limiting rod 61 to rotate until the limiting rod 61 is completely screwed into the threaded hole 8, and the external thread 63 on the limiting rod 61 is threadedly connected with the threaded hole 8, thereby improving the firm effect between the nylon ring 4 and the nut body 1, preventing the nylon ring 4 from falling out, and increasing the anti-loosening performance. By providing the drainage groove 10, part of the moisture can be avoided from remaining in the interior of the nut body 1. When the nut body 1 encounters extreme weather during use, the moisture can flow out from the drainage groove 10 on the outer wall of the nylon ring 4, avoiding part of the moisture remaining and causing the nut body 1 to rust, thereby extending the service life of the nut body 1.

[0028] 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 nylon locking nut, characterized in that: The invention comprises a nut body (1), a nut inner seat (2), a mounting groove (3), a nylon ring (4), a nut base (5), and a limit assembly (6); the nut inner seat (2) is arranged at the lower part of the inside of the nut body (1); the mounting groove (3) for the nylon ring (4) to be inserted is arranged at the upper part of the inside of the nut body (1); the outer wall of the nylon ring (4) is tightly attached to the inner wall of the nut body (1); the nut base (5) is connected to the lower part of the outside of the nut body (1); and the limit assembly (6) is symmetrically arranged on the nylon ring (4).

2. A nylon locking nut according to claim 1, characterized in that: The interiors of the nut inner seat (2) and the nut base (5) are both provided with internal threads (7), and the nut body (1), the nut inner seat (2) and the nut base (5) are an integrated structure.

3. A nylon locking nut according to claim 1, characterized in that: A threaded hole (8) for screwing a limiting component (6) is provided above the nut inner seat (2), and the threaded holes (8) are symmetrically arranged.

4. A nylon locking nut as claimed in claim 3, characterized in that: The nylon ring (4) is provided with a through hole (9) for the limiting component (6) to pass through, the aperture of the through hole (9) is the same as the aperture of the threaded hole (8), and the through hole (9) is circular in structure and symmetrically arranged.

5. A nylon locking nut as claimed in claim 4, characterized in that: The limiting assembly (6) comprises a limiting rod (61), a rotating head (62), and an external thread (63); one end of the limiting rod (61) passes through the through hole (9), the threaded hole (8) in sequence, and is threadedly connected to the nut inner seat (2); the top end of the limiting rod (61) is connected to the rotating head (62); the rotating head (62) is in a cross-shaped structure; the outer wall of the limiting rod (61) is provided with an external thread (63), and the external thread (63) is adapted to the threaded hole (8).

6. A nylon locking nut according to claim 1, characterized in that: The outer side wall of the nylon ring (4) is provided with a plurality of drainage grooves (10), the drainage grooves (10) are in a square structure, and the drainage grooves (10) are distributed in a circular shape.

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