Anti-loosening nut with locking structure

Abstract

The utility model discloses an anti-loosening nut with a locking structure, which comprises a hexagonal nut, an internal thread groove is arranged in the hexagonal nut, an anti-loosening ring is connected with the inner wall of the hexagonal nut in an embedded manner, a groove cavity is fixedly connected with the bottom of the hexagonal nut, a nylon piece is movably connected with the inside of the groove cavity, and the nylon piece is fixedly connected with the inner wall of the hexagonal nut. A mounting groove is formed in the outer wall of the hexagonal nut, an open hole is formed in the outer wall of the hexagonal nut, and a locking assembly is mounted at the notch position of the mounting groove. According to the anti-loosening nut with the locking structure, multiple anti-loosening structures such as the anti-loosening ring, the nylon piece and the locking assembly are arranged, the design of the locking assembly is in accordance with the conciseness and easiness in use, the core structure of the locking assembly comprises the sliding rod, the reset spring and the self-locking block, when the nut needs to be locked, the sliding rod is pushed, and the self-locking block is pushed to lock the nut. And under the action of elastic potential energy of the reset spring, the self-locking block quickly pops up and is clamped into a specific position.

Description

Technical Field

[0001] This utility model relates to the field of anti-loosening nuts, specifically an anti-loosening nut with a locking structure. Background Technology

[0002] In the utility model patent application CN218266740U, published on January 10, 2023, entitled "A Stable Nut," this utility model discloses a stable nut, including a nut housing, a spring ring, and a locking pin. The nut housing is a hexagonal prism with a through hole in the middle. The through hole has a cylindrical structure and an internal thread. The inner wall of the internal thread is tightly fitted with an anti-slip rubber layer. The side wall of the nut housing also has several locking holes. The bottom of the locking holes extends towards the centerline of the nut housing, and the locking holes penetrate the nut housing in a direction perpendicular to the centerline. This utility model's stable nut further improves the structure of a common nut, strengthening the connection between the bolt and the nut. The connection between the nut and the bolt has a certain resistance, increasing the stability of the nut and preventing it from loosening.

[0003] In the prior art, including the aforementioned patents, nuts are commonly used fasteners in fields such as mechanical assembly and equipment installation. Their fastening effect directly affects the safety and stability of the equipment. However, in actual use, due to factors such as vibration, impact, and temperature changes, nuts are prone to loosening, leading to a decrease in the fitting accuracy between connected parts, and even causing equipment failure and safety accidents.

[0004] While existing anti-loosening nuts offer some protection, they still have several shortcomings. For example, some anti-loosening nuts have complex structures, making installation and disassembly inconvenient and increasing construction costs and time. Furthermore, the anti-loosening performance of some anti-loosening nuts gradually declines over long-term use, failing to meet the requirements of prolonged, high-load working environments. Therefore, it is necessary to design an anti-loosening nut with a locking structure. Utility Model Content

[0005] The purpose of this invention is to provide an anti-loosening nut with a locking structure to solve the problems of complex structure and unstable anti-loosening performance of the anti-loosening nuts mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-loosening nut with a locking structure, comprising a hexagonal nut, wherein the interior of the hexagonal nut is provided with an internal thread groove, an anti-disengagement ring is fitted and connected to the inner wall of the hexagonal nut, a cavity is fixedly connected to the bottom of the hexagonal nut, a nylon sheet is movably connected inside the cavity, an installation groove is provided on the outer wall of the hexagonal nut, an opening is provided on the outer wall of the hexagonal nut, and a locking component is installed at the opening of the installation groove.

[0007] Furthermore, the anti-slip ring is made of elastic metal, and its inner wall is provided with a spiral anti-slip texture. The outer diameter of the anti-slip ring is larger than the minor diameter of the internal thread groove and smaller than the middle diameter of the internal thread groove. Each end of the anti-slip ring is provided with a connecting block that is fixedly connected to the inner wall of the hexagonal nut.

[0008] Furthermore, the depth of the groove is greater than the width of the nylon sheet, and three sets of nylon sheets are arranged inside the groove.

[0009] Furthermore, the opening penetrates the symmetrical plane of the hexagonal nut, and the opening communicates with the mounting groove.

[0010] Furthermore, the locking assembly includes a sliding rod, a return spring, and a self-locking block. The sliding rod is installed through the interior of the mounting groove, the self-locking block is fixedly connected to the outer wall of the sliding rod, and the return spring is installed on the outer wall of the sliding rod.

[0011] Furthermore, the self-locking block is a wedge-shaped block, and a groove that mates with the wedge-shaped block is provided in the middle of the mounting groove.

[0012] Furthermore, protrusions are fixedly connected to both ends of the sliding rod, and one end of the sliding rod and the return spring abut against the inner wall of the mounting groove, while the other end abuts against the self-locking block.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the anti-loosening nut with a locking structure is reasonable and has the following advantages:

[0014] (1) By setting multiple anti-loosening structures such as anti-loosening rings, nylon sheets and locking components, the design of the locking component adheres to the concept of simplicity and ease of use. Its core structure includes a sliding rod, a return spring and a self-locking block. When it is necessary to lock the nut, push the sliding rod. Under the action of the elastic potential energy of the return spring, the self-locking block will quickly pop out and lock into a specific position to achieve rapid locking of the nut. This effectively prevents the nut from loosening due to vibration, external force and other factors. When disassembling or reinstalling the nut, simply reverse the operation of the sliding rod to overcome the elastic force of the return spring and make the self-locking block retract, and the nut can be easily unlocked. This ingenious combination ensures that the nut has excellent anti-loosening effect while greatly facilitating the installation and disassembly process of the nut. It significantly reduces the technical difficulty in the construction process and reduces the investment of manpower and time costs. It increases the friction and locking force between the nut and bolt and between the nut and the connected parts from multiple angles, significantly improving the anti-loosening effect of the nut. It can effectively prevent the nut from loosening under harsh working conditions such as vibration and impact, and ensure the safe and stable operation of the equipment.

[0015] (2) This practical anti-slip ring is made of high-quality elastic metal material, which has excellent toughness and resilience. Its inner wall is carefully designed with fine and regular spiral anti-slip texture. When the nut and bolt are screwed together normally, the anti-slip ring will not cause any obstruction. However, when the nut is in the working state, the anti-slip ring can effectively enhance the tightness of the connection between the nut and bolt by virtue of its own characteristics, and greatly increase the friction between the two, thereby significantly improving the anti-slip performance of the nut under complex working conditions. The nylon sheet set in the groove can fit tightly with the surface of the connected parts, which not only increases the friction, but also plays a role in buffering and shock absorption, reducing the impact of vibration on the nut and connecting parts, and extending the service life of the nut and equipment. Attached Figure Description

[0016] Figure 1 This is a front view of the present utility model;

[0017] Figure 2 This is a side view of the present invention;

[0018] Figure 3 This is a top view of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the nylon ring and anti-slip ring of this utility model;

[0020] Figure 5 This is a schematic diagram of the locking structure of this utility model.

[0021] In the diagram: 1. Hexagonal nut; 2. Internal thread groove; 3. Anti-disengagement ring; 4. Groove cavity; 5. Nylon sheet; 6. Mounting groove; 7. Opening; 8. Locking assembly; 801. Sliding rod; 802. Return spring; 803. Self-locking block. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 The present invention provides a technical solution as follows:

[0024] Example 1:

[0025] An anti-loosening nut with a locking structure includes a hexagonal nut 1, an internal threaded groove 2 inside the hexagonal nut 1, an anti-disengagement ring 3 fitted into the inner wall of the hexagonal nut 1, a cavity 4 fixedly connected to the bottom of the hexagonal nut 1, a nylon sheet 5 movably connected inside the cavity 4, an installation groove 6 on the outer wall of the hexagonal nut 1, an opening 7 on the outer wall of the hexagonal nut 1, and a locking component 8 installed at the opening of the installation groove 6.

[0026] The aforementioned structure uses an anti-loosening nut to engage with the corresponding bolt via the internal thread groove 2. During the engagement process, the anti-disengagement ring 3, with its excellent elastic properties, can adapt to the surface profile of the bolt. Its unique spiral anti-slip texture tightly engages with the bolt surface, generating strong friction at each contact point. This greatly enhances the friction of the threaded connection, thereby significantly improving the stability of the entire connection structure.

[0027] Furthermore, the anti-slip ring 3 is made of elastic metal, and its inner wall is provided with a spiral anti-slip texture. The outer diameter of the anti-slip ring 3 is larger than the minor diameter of the internal thread groove 2 and smaller than the middle diameter of the internal thread groove 2. The two ends of the anti-slip ring 3 are respectively provided with connecting blocks that are fixedly connected to the inner wall of the hexagonal nut 1. The internal groove depth of the groove 4 is larger than the width of the nylon sheet 5, and three sets of nylon sheets 5 are provided inside the groove 4. The opening 7 penetrates the symmetrical plane of the hexagonal nut 1, and the opening 7 is interconnected with the mounting groove 6.

[0028] In the above structure, when the nut is screwed close to the connected part, the nylon sheet 5 inside the groove 4, due to its inherent elasticity, gradually and tightly adheres to the surface of the connected part under the influence of the screwing force. This adhesion is not a simple contact; the elastic deformation of the nylon sheet 5 allows it to adapt to the subtle undulations of the surface of the connected part, thereby increasing the friction between the nut and the connected part in all directions and greatly improving the stability of the connection.

[0029] Furthermore, the locking assembly 8 includes a sliding rod 801, a return spring 802, and a self-locking block 803. The sliding rod 801 is installed through the interior of the mounting groove 6. The self-locking block 803 is fixedly connected to the outer wall of the sliding rod 801. The return spring 802 is installed on the outer wall of the sliding rod 801. The self-locking block 803 is a wedge-shaped block. A groove that mates with the wedge-shaped block is provided in the middle of the mounting groove 6. Protrusions are fixedly connected to both ends of the sliding rod 801. One end of the sliding rod 801 and the return spring 802 abut against the inner wall of the mounting groove 6, and the other end abuts against the self-locking block 803.

[0030] The above structure utilizes the principle that after the nut is tightened to the correct position, pushing the sliding rod 801 causes the self-locking block 803 to extend along the opening 7 and embed into the corresponding groove pre-set in the connected component. At this time, the return spring 802 is compressed, and the self-locking block 803, under the elastic force of the return spring 802, is tightly locked in the groove, thus locking the nut and preventing it from rotating.

[0031] Working principle: When using this device, to remove the nut, first hold the sliding rod 801 and pull it smoothly in a specific direction. As the pulling action continues, the self-locking block 803 will gradually overcome the elastic force generated by the return spring 802 and slowly retract into the mounting groove 6. When the self-locking block 803 is fully inserted into the mounting groove 6, the locking state of the nut is released. At this time, the nut can be rotated normally, and the user can remove it smoothly from the mating bolt using the conventional disassembly method. Throughout the disassembly process, the nylon sheet 5 has good elasticity. During the rotation of the nut, the nylon sheet 5 will deform adaptively without generating friction that hinders the rotation of the nut. At the same time, the anti-disengagement ring 3 adopts a unique structural design, which will not interfere with the rotation path of the nut, ensuring that the nut disassembly process can be carried out smoothly and without obstruction, greatly improving the efficiency and convenience of the disassembly operation.

[0032] 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 locking nut against loosening with a locking structure, comprising a hexagonal nut (1), characterized in that: The interior of the hexagonal nut (1) is provided with an internal thread groove (2), the inner wall of the hexagonal nut (1) is embeddedly connected with an anti-loose ring (3), the bottom of the hexagonal nut (1) is fixedly connected with a groove cavity (4), the interior of the groove cavity (4) is movably connected with a nylon sheet (5), the outer wall of the hexagonal nut (1) is provided with a mounting groove (6), the outer wall of the hexagonal nut (1) is provided with a hole (7), and the slot opening of the mounting groove (6) is provided with a locking assembly (8).

2. The anti-loosening nut with a locking structure according to claim 1, characterized in that: The anti-loose ring (3) is made of elastic metal material, the inner wall of the anti-loose ring (3) is provided with a spiral anti-slip pattern, the outer diameter of the anti-loose ring (3) is greater than the small diameter of the internal thread groove (2) and less than the medium diameter of the internal thread groove (2), and the two ends of the anti-loose ring (3) are respectively provided with a connecting block fixedly connected with the inner wall of the hexagonal nut (1).

3. The anti-loose nut with locking structure according to claim 1, characterized in that: The internal groove depth of the groove cavity (4) is greater than the width of the nylon sheet (5), and the interior of the groove cavity (4) is provided with three groups of nylon sheets (5).

4. The anti-loose nut with locking structure according to claim 1, characterized in that: The hole (7) penetrates the symmetry plane of the hexagonal nut (1), and the hole (7) and the mounting groove (6) are mutually penetrated.

5. The anti-loose nut with locking structure according to claim 1, characterized in that: The locking assembly (8) includes a sliding rod (801), a reset spring (802) and a self-locking block (803) in the interior, the sliding rod (801) is installed through the interior of the mounting groove (6), the outer wall of the sliding rod (801) is fixedly connected with the self-locking block (803), and the outer wall of the sliding rod (801) is provided with the reset spring (802).

6. The anti-loose nut with locking structure according to claim 5, characterized in that: The self-locking block (803) is a wedge-shaped block, and the middle position of the mounting groove (6) is provided with a slot opening matched with the wedge-shaped block.

7. The anti-loose nut with locking structure according to claim 5, characterized in that: The two ends of the sliding rod (801) are fixedly connected with protrusions, the sliding rod (801), the reset spring (802) abuts against the inner wall of the mounting groove (6) at one end, and abuts against the self-locking block (803) at the other end.

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