Anti-loosening nut structure

Abstract

The utility model discloses an anti-loosening nut structure, which belongs to the technical field of nuts and comprises a nut main body, a deformation hole is arranged on the nut main body, and a connecting hole and a counter bore are arranged on the nut main body. The deformation hole, the connecting hole and the counter bore are formed in the nut body, the micro countersunk bolt with the tail end matched with the connecting hole is arranged in the counter bore, and after the nut body is installed on a screw rod, acting force can be applied through the micro countersunk bolt, so that the nut body is tightly clamped on the screw rod, and the locking effect is improved; sawtooth protrusions in the gasket assembly have the anti-loosening effect, the locking ring exerts elastic acting force on the nut body through the miniature elastic piece and the abutting piece, so that the nut body has good stability when being vibrated, the stability of the nut body in the using process is improved, the limiting piece can be bent and inserted into the limiting groove in the locking ring, and therefore the nut body is prevented from being loosened. And the locking ring is limited by the gasket assembly, so that the use stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of nut technology, and in particular to an anti-loosening nut structure. Background Technology

[0002] A nut, also known as a bolt or screw, is a common mechanical part with a central hole and threads on the inside. It is typically used in conjunction with a bolt or screw to fasten two or more parts together. A lock-lock nut structure consists of a nut as the main component and a lock-lock washer. This structure prevents loosening, ensures a secure connection, avoids instability caused by a loose nut, and reduces safety hazards.

[0003] In existing anti-loosening nut structures, serrated protrusions are provided on the washer, and the friction between the serrated protrusions and the nut body is used to prevent loosening. However, this type of anti-loosening nut structure relies solely on the nut body and the serrated protrusions on the washer for anti-loosening, resulting in a relatively small force applied. If there is significant vibration during mechanical operation, the nut body can still loosen, thereby affecting the connection stability of related structures, and the anti-loosening effect is generally limited. Utility Model Content

[0004] The main purpose of this utility model is to provide an anti-loosening nut structure, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An anti-loosening nut structure includes a nut body, on which a deformation hole is formed, and a connecting hole and a countersunk hole are provided. A miniature countersunk bolt is provided in the countersunk hole on the nut body. A washer assembly is provided below the nut body, and a locking assembly is provided above the nut body.

[0007] Preferably, the nut body has a first threaded hole, and the end of the miniature countersunk bolt is connected to the connecting hole.

[0008] Preferably, the lower surface of the nut body contacts the washer assembly, and the upper surface of the nut body contacts the locking assembly.

[0009] Preferably, the gasket assembly includes a gasket body, serrated protrusions, a circular hole, and a limiting piece. The serrated protrusions are disposed on the gasket body and are distributed in a circular array on the gasket body. The circular hole is opened on the gasket body, and the limiting piece is distributed in a circular array on the gasket body.

[0010] Preferably, the locking assembly includes a locking ring, a second screw hole, and a limiting groove. The second screw hole is formed on the locking ring, and the limiting groove is formed on the locking ring, with the limiting grooves arranged in a ring array on the locking ring.

[0011] Preferably, the locking assembly further includes a retaining plate, a through hole, and a micro spring. The through hole is formed on the retaining plate, and the micro spring is disposed between the locking ring and the retaining plate. Both ends of the micro spring are fixedly connected to the locking ring and the retaining plate, respectively. The micro springs are arranged in a ring array between the locking ring and the retaining plate.

[0012] Compared with the prior art, this utility model has the following beneficial effects: This anti-loosening nut structure, by opening deformation holes, connecting holes and countersunk holes on the nut body, and setting miniature countersunk bolts with ends adapted to the connecting holes in the countersunk holes, allows the miniature countersunk bolts to apply force after the nut body is installed on the screw, so that the nut body is firmly clamped on the screw, improving the locking effect. The use of a washer assembly and a locking assembly, the serrated protrusions in the washer assembly have an anti-loosening effect, and the locking ring applies an elastic force to the nut body through miniature spring pieces and abutment pieces, so that the nut body has good stability when subjected to vibration, further increasing the stability of the nut body during use. The limiting piece can be bent and inserted into the limiting groove on the locking ring, and the locking ring is limited by the washer assembly, increasing the stability of use. Attached Figure Description

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

[0014] Figure 2 This is a schematic diagram of the structure of the nut body of this utility model;

[0015] Figure 3 This is a schematic diagram of the gasket assembly of this utility model;

[0016] Figure 4 This is a schematic diagram of the locking assembly of this utility model.

[0017] In the diagram: 1. Nut body; 2. Deformation hole; 3. Connecting hole; 4. Countersunk hole; 5. Miniature countersunk bolt; 6. First screw hole; 7. Washer assembly; 701. Washer body; 702. Serrated protrusion; 703. Round hole; 704. Limiting piece; 8. Locking assembly; 801. Locking ring; 802. Second screw hole; 803. Limiting groove; 804. Abutment piece; 805. Through hole; 806. Miniature spring. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figures 1-4 As shown, an anti-loosening nut structure includes a nut body 1, a deformation hole 2 on the nut body 1, a connecting hole 3 and a countersunk hole 4 on the nut body 1, a miniature countersunk bolt 5 installed in the countersunk hole 4 on the nut body 1, a washer assembly 7 at the bottom of the nut body 1, and a locking assembly 8 at the top of the nut body 1. A first threaded hole 6 is provided on the nut body 1, and the end of the miniature countersunk bolt 5 is connected to the connecting hole 3. The lower surface of the nut body 1 contacts the washer assembly 7, and the upper surface of the nut body 1 contacts the locking assembly 8.

[0020] During the installation of the anti-loosening nut structure, the screw rod passes through the corresponding connecting parts, and a washer assembly 7 is fitted onto the screw rod. The nut body 1 is then installed onto the screw rod through the first screw hole 6, so that the nut body 1 contacts the washer assembly 7. Subsequently, a miniature countersunk bolt 5 is installed in the countersunk hole 4, and the end of the miniature countersunk bolt 5 is screwed into the connecting hole 3. Under the action of the miniature countersunk bolt 5, the nut body 1 undergoes slight deformation through the deformation hole 2, thereby being securely clamped onto the screw rod. After the nut body 1 is installed, a locking assembly 8 is installed on the screw rod. The locking assembly 8 applies an elastic force to the nut body 1. Then, the structure in the washer assembly 7 is adjusted, and the washer assembly 7 is used to limit the locking assembly 8, completing the installation and connection of the entire nut structure.

[0021] During the use of the machine, due to the combined action of the miniature countersunk bolt 5 and the deformation hole 2, the nut body 1 has good stability on the screw. The serrations on the washer assembly 7 apply a large reaction force to the nut body 1, which can prevent the nut body 1 from loosening. The elastic force applied by the locking assembly 8 can further ensure the stability of the nut body 1, making the entire nut structure highly stable and ensuring the stability of the mechanical connection.

[0022] By opening a deformation hole 2, a connecting hole 3, and a countersunk hole 4 on the nut body 1, and setting a miniature countersunk bolt 5 with its end adapted to the connecting hole 3 in the countersunk hole 4, after the nut body 1 is installed on the screw, the miniature countersunk bolt 5 can apply force to make the nut body 1 tightly clamped on the screw, thereby improving the locking effect.

[0023] According to the above implementation scheme, the gasket assembly 7 includes a gasket body 701, a serrated protrusion 702, a circular hole 703, and a limiting piece 704. The serrated protrusion 702 is disposed on the gasket body 701 and is distributed in a ring array on the gasket body 701. The circular hole 703 is opened on the gasket body 701, and the limiting piece 704 is distributed in a ring array on the gasket body 701.

[0024] When installing the washer assembly 7, the washer body 701 is fitted onto the screw through the round hole 703. After installing the nut body 1 and the locking assembly 8, the nut body 1 contacts the serrated protrusion 702 on the washer body 701. Under the action of the serrated protrusion 702, the nut body 1 has a good anti-loosening effect. After the nut body 1 and the locking assembly 8 are installed, the bent limiting piece 704 is connected to the locking assembly 8. The limiting piece 704 limits the locking assembly 8, which can prevent the locking assembly 8 from rotating and loosening, ensuring the limiting effect of the locking assembly 8 on the nut body 1 and guaranteeing the use effect.

[0025] According to the above implementation scheme, the locking assembly 8 includes a locking ring 801, a second screw hole 802, and a limiting groove 803. The second screw hole 802 is formed on the locking ring 801, and the limiting groove 803 is formed on the locking ring 801, and the limiting groove 803 is distributed in a ring array on the locking ring 801. The locking assembly 8 also includes a retaining piece 804, a through hole 805, and a miniature spring piece 806. The through hole 805 is formed on the retaining piece 804, and the miniature spring piece 806 is disposed between the locking ring 801 and the retaining piece 804. The two ends of the miniature spring piece 806 are fixedly connected to the locking ring 801 and the retaining piece 804 respectively, and the miniature spring piece 806 is distributed in a ring array between the locking ring 801 and the retaining piece 804.

[0026] When installing the locking assembly 8, the locking ring 801 is screwed onto the screw rod using the second screw hole 802. The clamping plate 804 is sleeved outside the screw rod through the through hole 805. When the clamping plate 804 contacts the nut body 1, it is limited and no longer moves. Continuing to rotate the locking ring 801, it continues to move towards the nut body 1, compressing the micro spring 806 and finely adjusting the position of the locking ring 801 so that the limiting groove 803 corresponds to the limiting plate 704. Then, the limiting plate 704 is bent and inserted into the limiting groove 803. During the use of the nut structure, the limiting plate 704 plays a role in limiting the rotation of the locking ring 801, ensuring that the locking ring 801 will not loosen due to vibration. At the same time, under the action of the micro spring 806, the clamping plate 804 applies an elastic force to the nut body 1, further improving the anti-loosening effect of the nut body 1. The structure is simple and the performance is excellent.

[0027] It should be noted that the use of the washer assembly 7 and the locking assembly 8, the serrated protrusion 702 in the washer assembly 7 serves to prevent loosening, and the locking ring 801 applies an elastic force to the nut body 1 through the micro spring 806 and the abutment 804, so that the nut body 1 has good stability when subjected to vibration, further increasing the stability of the nut body 1 during use. The limiting piece 704 can be bent and inserted into the limiting groove 803 on the locking ring 801, and the locking ring 801 is limited by the washer assembly 7, which increases the stability of use.

[0028] The foregoing describes the working principle, features, and beneficial effects of this utility model. Those skilled in the art will understand from the foregoing that it does not limit the utility model. The embodiments and description above illustrate the basic principles and features of this utility model. Various changes and improvements can be made to this utility model while remaining consistent with its concept, and all such improvements should fall within the scope of protection claimed by this utility model.

Claims

1. A lock nut structure characterized by: The application relates to a nut body (1) provided with a deformation hole (2), a connecting hole (3) and a counterbore (4), wherein the counterbore (4) is provided with a micro countersunk bolt (5), the lower portion of the nut body (1) is provided with a gasket assembly (7), and the upper portion of the nut body (1) is provided with a locking assembly (8).

2. A lock nut structure according to claim 1, wherein: The nut body (1) is provided with a first screw hole (6), and the tail end of the micro countersunk bolt (5) is connected to the connecting hole (3).

3. A lock nut assembly according to claim 2 wherein: The lower surface of the nut body (1) is in contact with the gasket assembly (7), and the upper surface of the nut body (1) is in contact with the locking assembly (8).

4. A lock nut assembly according to claim 3 wherein: The gasket assembly (7) comprises a gasket body (701), sawtooth protrusions (702), a circular hole (703) and limiting sheets (704), the sawtooth protrusions (702) are arranged on the gasket body (701) and are arranged in a ring array on the gasket body (701), the circular hole (703) is arranged on the gasket body (701), and the limiting sheets (704) are arranged in a ring array on the gasket body (701).

5. A lock nut assembly according to claim 4 wherein: The locking assembly (8) comprises a locking ring (801), a second screw hole (802) and limiting grooves (803), the second screw hole (802) is arranged on the locking ring (801), and the limiting grooves (803) are arranged on the locking ring (801) and are arranged in a ring array on the locking ring (801).

6. A lock nut assembly according to claim 5 wherein: The locking assembly (8) further comprises abutting sheets (804), through holes (805) and micro elastic sheets (806), the through holes (805) are arranged on the abutting sheets (804), the micro elastic sheets (806) are arranged between the locking ring (801) and the abutting sheets (804), the two ends of the micro elastic sheets (806) are fixedly connected with the locking ring (801) and the abutting sheets (804), and the micro elastic sheets (806) are arranged in a ring array between the locking ring (801) and the abutting sheets (804).

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