Lock nut fastener

Abstract

The utility model discloses a locknut fastener which comprises a nut body, a fixing hole is formed in the middle of the nut body, threads are arranged at the position of the fixing hole, a fixing groove is formed in the direction from one end face to the other end face of the nut body, one end of the fixing groove is communicated with the fixing hole, and the other end of the fixing groove is located in the end face of the nut body. A through groove is formed in the groove wall, away from the fixing hole, of the fixing groove in the direction away from the fixing hole and communicates with the outside of the nut body, anti-loose abutting structures are arranged in the fixing groove and the through groove, one end of each anti-loose abutting structure is used for abutting against a bolt connected with the nut body, and the other end of each anti-loose abutting structure is limited to the nut body. The anti-loose abutting piece is arranged to abut against the bolt, further limiting of the nut and the bolt is achieved, and therefore the connection stability is guaranteed, and the anti-loose performance is improved; and meanwhile, by arranging the limiting plate and the elastic piece, the stability of the limiting plate is achieved when the fastening device abuts against the fastened object, and therefore the stability of the overall structure is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of nut fastener technology, specifically to an anti-loosening nut fastener. Background Technology

[0002] Nuts are common fasteners, usually used in conjunction with bolts. However, during the connection process, the connection can loosen due to vibration. To address this issue, Chinese utility model patent application number 202322540576.4 discloses a high wear-resistant bolt fastener. This fastener uses a T-shaped block on the nut to engage with a slot on the bolt, achieving a stable connection and preventing loosening. However, the connection position of the nut and bolt in this structure requires precise matching with the slot's position and has specific requirements regarding the thickness of the connected components, resulting in limited applicability. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the aforementioned background technology by providing a commonly used nut fastener with good anti-loosening effect.

[0004] To achieve the above objectives, this utility model provides an anti-loosening nut fastener, which adopts the following technical solution:

[0005] A locking nut fastener includes a nut body with a fixing hole in the middle and a thread at the fixing hole. The nut body has a fixing groove at one end facing the other, with one end connected to the fixing hole and the other end located within the end face of the nut body. A through groove is provided on the groove wall away from the fixing hole, connecting to the outside of the nut body. Locking and tightening structures are provided within the fixing groove and through groove. One end of the locking and tightening structure is used to abut against the bolt connected to the nut body, and the other end is confined within the nut body.

[0006] A further improvement of this utility model of an anti-loosening nut fastener is that the anti-loosening tightening structure includes a tightening section and a limiting section, wherein the tightening section is placed in a fixing groove and the limiting section is inserted into a through groove.

[0007] A further improvement of this utility model of an anti-loosening nut fastener is that a limiting groove is provided at the edge of the end face where the fixing groove is provided on the nut body, the through groove is connected to the limiting groove, and a limiting plate is provided in the limiting groove, the limiting plate abutting against the limiting section.

[0008] A further improvement of this utility model of an anti-loosening nut fastener is that an elastic pad is provided at the end of the limiting section near the limiting plate.

[0009] A further improvement of this utility model of an anti-loosening nut fastener is that the limiting groove has protrusions at both ends, and the limiting plate has fixing parts at both ends that engage with the protrusions.

[0010] A further improvement of this utility model of an anti-loosening nut fastener is that the length of the limiting plate is less than the length of the limiting groove, and an elastic element is provided at the end of the limiting plate away from the nut body.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model sets up an anti-loosening clamping component to clamp the bolt, thereby further limiting the position of the nut and bolt, thus ensuring connection stability and improving anti-loosening performance; at the same time, by setting up a limiting plate and an elastic component, the limiting plate is stabilized when it is pressed against the fastened object, thus also ensuring the stability of the overall structure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the side view structure;

[0015] In the diagram: 1 Nut body, 2 Fixing hole, 3 Fixing groove, 4 Through groove, 5 Clamping section, 6 Limiting section, 7 Limiting groove, 8 Protrusion. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1 and Figure 2As shown, an anti-loosening nut fastener includes a nut body 1, a fixing hole 2 in the middle of the nut body, a threaded hole, a fixing groove 3 on one end of the nut body facing the other end, one end of the fixing groove communicating with the fixing hole, and the other end located inside the end face of the nut body. A through groove 4 is provided on the groove wall away from the fixing hole, communicating with the outside of the nut body. Anti-loosening clamping structures are provided in the fixing groove and the through groove. One end of the anti-loosening clamping structure is used to abut against the bolt connected to the nut body, and the other end is limited within the nut body. Specifically, the anti-loosening clamping structure includes a clamping section 5 and a limiting section 6. The clamping section is placed in the fixing groove, and the limiting section is inserted into the through groove. The end of the clamping section near the connected bolt has anti-slip grooves, which contact the bolt to achieve limiting and stabilizing.

[0018] Furthermore, a limiting groove 7 is formed at the edge of the end face where the fixing groove is formed on the nut body. The through groove connects to the limiting groove, and a limiting plate is provided in the limiting groove, which abuts against the limiting section. An elastic pad is provided at the end of the limiting section near the limiting plate. The positioning of the anti-loosening and tightening structure is achieved through the limiting groove and the limiting plate, ensuring stable contact with the bolt and thus guaranteeing the anti-loosening performance.

[0019] Furthermore, the limiting groove has protrusions 8 at both ends, and the limiting plate has fixing parts that engage with the protrusions at both ends. This ensures the stability of the limiting plate's arrangement.

[0020] Furthermore, the length of the limiting plate is less than the length of the limiting groove, and an elastic element is provided at the end of the limiting plate away from the nut body. The elastic element can be an elastic pad. The elastic element is provided to provide support when the nut connecting bolt abuts against the object being fastened, thus ensuring that the limiting plate is in a stable position.

[0021] The working principle of this utility model is as follows: the nut is screwed into the bolt, and the end face where the fixing groove is located faces the object to be fastened. At this time, the limiting section protrudes from the through groove, and the limiting plate is arranged in the limiting groove. After the nut is connected in place, it presses against the limiting section, so that the pressing section presses against the bolt. At this time, the sliding limiting plate makes the limiting plate lock the limiting section. At the same time, the presence of the elastic element also presses against the object to be fastened, so as to realize the stable arrangement of the limiting plate.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lock-lock nut fastener, comprising a nut body, a fixing hole in the middle of the nut body, and a thread at the fixing hole, characterized in that, A fixing groove is provided at one end of the nut body facing the other end. One end of the fixing groove is connected to the fixing hole, and the other end is located inside the end face of the nut body. A through groove is provided on the groove wall away from the fixing hole in the direction away from the fixing hole. The through groove is connected to the outside of the nut body. An anti-loosening and tightening structure is provided in the fixing groove and the through groove. One end of the anti-loosening and tightening structure is used to abut against the bolt connected to the nut body, and the other end is limited to the nut body.

2. The anti-loosening nut fastener according to claim 1, characterized in that, The anti-loosening and tightening structure includes a tightening section and a limiting section. The tightening section is placed in a fixed groove, and the limiting section is inserted into a through groove.

3. The anti-loosening nut fastener according to claim 2, characterized in that, A limiting groove is formed at the edge of the end face of the nut body where the fixing groove is formed. The through groove is connected to the limiting groove. A limiting plate is provided in the limiting groove, and the limiting plate abuts against the limiting section.

4. The anti-loosening nut fastener according to claim 3, characterized in that, An elastic pad is provided at the end of the limiting section near the limiting plate.

5. The anti-loosening nut fastener according to claim 4, characterized in that, The limiting groove has protrusions at both ends, and the limiting plate has fixing parts at both ends that engage with the protrusions.

6. The anti-loosening nut fastener according to claim 5, characterized in that, The length of the limiting plate is less than the length of the limiting groove, and an elastic element is provided at the end of the limiting plate away from the nut body.

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