Locking nut

Abstract

The utility model provides a locking nut which comprises a nut body, one end of the nut body is provided with a locking ring, the locking ring is provided with a cutting groove, the end face of the locking ring is provided with a threaded hole, the threaded hole corresponds to the cutting groove, the threaded hole is communicated with the cutting groove, and the cutting groove is communicated with the threaded hole. And a locking screw is in threaded connection in the threaded hole. After the nut and the bolt are connected in a screwed mode, the locking screw can be operated, along with screwing of the locking screw, the locking screw abuts against the wall of the cutting groove, the cutting groove is gradually expanded and deformed, the cutting groove and a thread structure on the bolt are staggered, and therefore the locking state is formed. The opening angle of the cutting groove can be controllably adjusted through the locking screw.

Description

Technical Field

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

[0002] Nut is a common fastener with simple structure and easy use. It is widely used in fasteners. Currently, nuts are available in various forms. After being tightened, nuts are prone to loosening due to vibration.

[0003] In response to the above problems, the patent with patent authorization announcement number CN 213451277 U discloses a double-grooved nut with anti-loosening face teeth; the patent with patent authorization announcement number CN 209856195 U discloses a double-grooved nut with flange surface thread anti-loosening.

[0004] In the above-mentioned prior art, an annular anti-slip sleeve is added to the nut, and a groove is set on the anti-slip sleeve. After the nut is locked, the anti-slip sleeve will deform in the radial direction, so that the anti-slip sleeve and the threaded structure on the bolt are misaligned, forming an anti-slip locking structure to achieve the purpose of preventing loosening.

[0005] The existing nut with a slot structure has a limited and uncontrollable degree of deformation and cannot be actively deformed. Utility Model Content

[0006] In view of the problems pointed out in the background technology, the utility model proposes a locking nut to solve the above technical problems.

[0007] The technical solution of the utility model is achieved in this way:

[0008] A locking nut comprises a nut body, a locking ring is provided at one end of the nut body, a groove is provided on the locking ring, a threaded hole is provided on the end face of the locking ring, the threaded hole is arranged corresponding to the groove, the threaded hole is connected to the groove, and a locking screw is connected to the inner thread of the threaded hole.

[0009] The utility model is further configured that two cutting grooves are provided, the two cutting grooves are arranged at intervals in the axial direction of the locking ring, and the two cutting grooves are arranged at intervals in the circumferential direction of the locking ring.

[0010] The utility model is further configured such that one cutting groove has at least one locking screw corresponding thereto.

[0011] The utility model is further configured that the locking ring is in a circular shape, and the locking ring is coaxially arranged with the nut body.

[0012] The utility model is further configured that the end of the locking screw is provided with a hexagonal operating hole.

[0013] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0014] The locking nut provided by the utility model can operate the locking screw after the nut and the bolt are screwed together. As the locking screw is screwed, the locking screw abuts against the wall of the cutting groove, causing the cutting groove to gradually open and deform, causing the cutting groove and the thread structure on the bolt to be misaligned, thus forming a locking state. The opening angle of the cutting groove can be controllably adjusted by the locking screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0017] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .

[0018] Figure 3 It is an exploded schematic diagram of the utility model.

[0019] Figure 4 It is a top view of the utility model.

[0020] Figure 5 For this utility model Figure 4 AA section view.

[0021] Description of the reference numerals in the accompanying drawings: nut body 1, locking ring 2, cutting groove 3, threaded hole 4, locking screw 5, operating hole 6. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] For reference Figure 1-5 The utility model is described as follows:

[0024] Embodiment 1: A locking nut comprises a hexagonal nut body 1, a circular locking ring 2 is provided at one end of the nut body 1, the locking ring 2 is coaxially arranged with the nut body 1, the inner sides of the nut body 1 and the locking ring 2 are provided with internal threads, a groove 3 is provided on the locking ring 2, and there are two grooves 3, the two grooves 3 are arranged at intervals in the axial direction of the locking ring 2, and the two grooves 3 are arranged at intervals in the circumferential direction of the locking ring 2.

[0025] The above is the prior art, and the following is the improved technical solution of this application:

[0026] The end surface of the locking ring 2 is provided with a threaded hole 4 corresponding to the cutting groove 3, and at least one threaded hole 4 is provided corresponding to one cutting groove 3. The threaded hole 4 is connected to the cutting groove 3, and a locking screw 5 is connected to the inner thread of the threaded hole 4. The end of the locking screw 5 is provided with a hexagonal operating hole 6. After the nut body 1 is screwed and connected with the bolt, the locking screw 5 can be operated by a tool, and the locking screw 5 is gradually tightened and abutted against the wall of the cutting groove 3, so that the cutting groove 3 gradually opens and deforms.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A locking nut, comprising a nut body (1), one end of the nut body (1) is provided with a locking ring (2), the locking ring (2) is provided with a groove (3), characterized in that: A threaded hole (4) is provided on the end surface of the locking ring (2), the threaded hole (4) is arranged corresponding to the cutting groove (3), the threaded hole (4) is connected to the cutting groove (3), and a locking screw (5) is connected to the inner thread of the threaded hole (4).

2. A locking nut according to claim 1, characterized in that: There are two cutting grooves (3), the two cutting grooves (3) are arranged at intervals in the axial direction of the locking ring (2), and the two cutting grooves (3) are arranged at intervals in the circumferential direction of the locking ring (2).

3. A locking nut according to claim 2, characterized in that: One cutting groove (3) has at least one locking screw (5) corresponding thereto.

4. A locking nut according to claim 1, characterized in that: The locking ring (2) is in the shape of a circular ring and is coaxially arranged with the nut body (1).

5. The locking nut according to claim 1, characterized in that: The end of the locking screw (5) is provided with a hexagonal operating hole (6).

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