Anti-falling sealing type fastener assembly

Abstract

The utility model discloses an anti-falling sealing type fastener assembly which comprises a bolt, a first nut and a second nut are connected to the bolt in a threaded mode, and a fixing ring and a gasket are arranged between the first nut and the second nut. A through hole is formed in the first nut, a pull rod and a spring are arranged in the through hole, a bearing and a check ring are arranged on the pull rod, a buckle is fixedly connected to the top of the pull rod, a clamping groove and a sealing gasket are arranged on the fixing ring, and a clamping block is arranged in the clamping groove. Through the above devices, through cooperation of the first nut, the second nut, the pull rod, the spring, the buckle and the clamping block, the pull rod can flexibly rotate, through interaction of the buckle and the clamping groove in the fixing ring, the pull rod is firmly locked on the clamping block, the vibration resistance and the looseness prevention performance of the whole assembly are ensured, and the service life of the assembly is prolonged. Therefore, the anti-falling effect of the fastener is remarkably improved, and the service life of the fastener is remarkably prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, and particularly relates to an anti-loosening and sealing fastener assembly. Background Art

[0002] Fasteners are indispensable components in mechanical engineering and structural assembly, and are used to connect and fix various components. The main function of traditional fasteners is to achieve stable fixation of components through threaded connections.

[0003] In the existing fastener technology, double nuts are often used for fixation. However, this method can alleviate the problem to a certain extent, but the effect is often limited and cannot completely solve the problem of fastener loosening. For example, a Chinese patent discloses an "anti-loosening and sealing fastener assembly" with an application number of "CN201821391311.5". It has a bolt head at one end of the bolt, a nut sleeved outside the bolt and threadedly engaged with the bolt, a sealing ring located between the bolt head and the nut and sleeved outside the bolt, with both ends of the sealing ring respectively abutting against the bolt head and the nut, and a limit sleeve sleeved outside the sealing ring with the outer wall of the sealing ring abutting against the inner wall of the limit sleeve. However, it lacks a sufficient mechanical locking mechanism and may not effectively prevent the nut from falling off during long-term use. Summary of the Utility Model

[0004] The purpose of the present utility model is to at least solve one of the technical problems existing in the prior art, and provide an anti-loosening and sealing fastener assembly. By using a first nut and a second nut, and adding a fixing ring and a washer between them, the fixing property of the nut is effectively improved, and loosening is prevented. The through hole inside the first nut cooperates with components such as a pull rod, a spring, a bearing and a retaining ring, enabling the pull rod to rotate flexibly, and through the interaction between a buckle and a clamping groove on the fixing ring, the pull rod is firmly locked on the clamping block, preventing loosening or falling off, thereby significantly improving the anti-loosening effect and service life of the fastener. The clamping groove on the fixing ring and the clamping block are cooperated through a buckle to ensure that the fastener will not loosen in a vibrating environment, and at the same time, the sealing gasket further enhances the sealing performance of the assembly, preventing external substances from entering. These designs greatly improve the reliability and safety of the fastener.

[0005] The present utility model also provides an anti-loosening and sealing fastener assembly having the above-described one, including: a bolt, a first nut and a second nut are threadedly connected to the bolt, and a fixing ring and a washer are disposed between the first nut and the second nut; a through hole is provided inside the first nut, a pull rod and a spring are provided inside the through hole, a bearing and a retaining ring are provided on the pull rod, a buckle is fixedly connected to the top of the pull rod, a clamping groove and a sealing gasket are provided on the fixing ring, and a clamping block is provided inside the clamping groove. Through the above device, through the cooperation of the first nut, the second nut, the pull rod, the spring, the buckle and the clamping block, the pull rod can rotate flexibly, and through the interaction between the buckle and the clamping groove on the fixing ring, the pull rod is firmly locked on the clamping block, ensuring the anti-vibration and anti-loosening performance of the entire assembly, thereby significantly improving the anti-loosening effect and service life of the fastener.

[0006] According to an anti-loosening and sealing fastener assembly described in the present utility model, the first nut is located at the bottom of the bolt, and the second nut is located on the outermost side of the bolt. Through the above device, through the positional relationship, the firmness of the fastener can be ensured, and the nut can be prevented from loosening due to external force.

[0007] According to an anti-loosening and sealing fastener assembly described in the present utility model, the fixing ring is in contact with the first nut, and the washer is located between the fixing ring and the second nut. Through the above device, through the fixing ring and the washer, the sealing effect is ensured, and at the same time, the fastening stability is enhanced.

[0008] According to an anti-loosening and sealing fastener assembly described in the present utility model, the through hole penetrates through the first nut, and the through hole is located on both sides of the bolt. Through the above device, through the through hole, the pull rod can smoothly penetrate through the nut and provide a channel for subsequent operations.

[0009] According to an anti-loosening and sealing fastener assembly described in the present utility model, a retaining ring is fixedly connected to the top inside the through hole, and the retaining ring is in contact with the retaining ring. Through the above device, through the contact between the retaining ring and the retaining ring, the stability of the pull rod inside the through hole can be ensured, and its up and down shaking can be prevented.

[0010] According to an anti-loosening and sealing fastener assembly described in the present utility model, a pull ring is provided outside the pull rod, and the pull ring is located outside the through hole. Through the above device, through the pull ring, it is convenient for the operator to perform the rotation and locking operations of the pull rod.

[0011] According to an anti-loosening and sealing fastener assembly described in the present utility model, the spring is fixedly connected to the retaining ring, the bearing is fixedly connected to the pull rod, and the retaining ring is fixedly connected to the outside of the bearing. Through the above device, through the spring, the necessary return force is provided to ensure the close contact between the buckle and the clamping block and prevent loosening.

[0012] A kind of anti-loosening and sealing fastener assembly according to the present utility model, the sealing gasket is attached to the first nut, and the buckle is attached to the bottom of the clamping block. Through the above device, the sealing performance of the assembly is improved by the sealing gasket, and the tight fit between the buckle and the clamping block prevents the nut from loosening.

[0013] Beneficial effects

[0014] Compared with the prior art, for the anti-loosening and sealing fastener assembly, through the first nut and the second nut, and a fixing ring and a washer are added between the two, the fixing property of the nut is effectively improved, preventing loosening. The through hole inside the first nut cooperates with components such as a pull rod, a spring, a bearing and a retaining ring, enabling the pull rod to rotate flexibly, and through the interaction between the buckle and the card slot on the fixing ring, the pull rod is firmly locked on the clamping block, preventing loosening or falling off, thereby significantly improving the anti-loosening effect and service life of the fastener. The card slot on the fixing ring and the clamping block are cooperated through the buckle to ensure that the fastener will not become loose in a vibrating environment, and at the same time the sealing gasket further enhances the sealing performance of the assembly, preventing external substances from entering. These designs greatly improve the reliability and safety of the fastener. Description of the drawings

[0015] The following further illustrates the present utility model in conjunction with the drawings and embodiments;

[0016] Figure 1 It is the front view of the anti-loosening and sealing fastener assembly of the present utility model;

[0017] Figure 2 It is the Figure 1 internal structure diagram of the anti-loosening and sealing fastener assembly of the present utility model;

[0018] Figure 3 It is in the anti-loosening and sealing fastener assembly of the present utility model Figure 2 the enlarged view of part A.

[0019] Legend description:

[0020] 1. Bolt; 2. First nut; 3. Fixing ring; 4. Washer; 5. Second nut; 6. Through hole; 7. Pull rod; 8. Pull ring; 9. Retaining ring; 10. Bearing; 11. Retaining washer; 12. Spring; 13. Buckle; 14. Card slot; 15. Clamping block; 16. Sealing gasket. Detailed implementation manners

[0021] This part will describe the specific embodiments of the present utility model in detail. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be construed as a limitation on the protection scope of the present utility model.

[0022] Reference Figures 1-3 Figures 1-3 , in an embodiment of the utility model, an anti - detachment and sealed fastener assembly includes: a bolt 1, a first nut 2 and a second nut 5 are thread - connected to the bolt 1. The second nut 5 further locks the assembly to ensure the overall stability. The first nut 2 is located at the bottom of the bolt 1, and the second nut 5 is located at the outermost side of the bolt 1. A fixing ring 3 and a washer 4 are arranged between the first nut 2 and the second nut 5. The fixing ring 3 ensures the stable locking of the buckle 13, and the washer 4 provides additional support and buffering to prevent the fastener from loosening and enhance the sealing performance at the same time. The fixing ring 3 is in contact with the first nut 2, and the washer 4 is located between the fixing ring 3 and the second nut 5.

[0023]

[0023] Inside the first nut 2, there is a through - hole 6 which penetrates the first nut 2. The through - hole 6 is located on both sides of the bolt 1. At the inner top of the through - hole 6, a retaining ring 9 is fixedly connected. The retaining ring 9 limits the movement range of the pull rod 7 to ensure its stability. The retaining ring 9 is in contact with the retaining washer 11. Inside the through - hole 6, there are a pull rod 7 and a spring 12. The pull rod 7 realizes the functions of rotation and locking of the buckle 13. The spring 12 provides the necessary resilience for the pull rod 7 to ensure that the buckle 13 can be tightly locked on the locking block 15. A pull ring 8 is arranged outside the pull rod 7, and the pull ring 8 is located outside the through - hole 6. On the pull rod 7, there are a bearing 10 and a retaining washer 11. The bearing 10 ensures that the friction is reduced when the pull rod 7 rotates, improving the smoothness of the operation. The retaining washer 11 plays a role in restricting the pull rod 7 to prevent it from moving up and down. The spring 12 is fixedly connected to the retaining washer 11, the bearing 10 is fixedly connected to the pull rod 7, and the retaining washer 11 is fixedly connected to the outside of the bearing 10. The top of the pull rod 7 is fixedly connected with a buckle 13. The buckle 13 ensures the anti - detachment effect of the fastener. On the fixing ring 3, there are a card slot 14 and a sealing gasket 16. The sealing gasket 16 provides an additional sealing effect to prevent the external environment from affecting the performance of the fastener. Inside the card slot 14, there is a locking block 15. The locking block 15 ensures the firm locking of the buckle 13 to prevent loosening. The sealing gasket 16 is in contact with the first nut 2, and the buckle 13 is in contact with the bottom of the locking block 15.

[0024] Working principle: When in use, first, place the fixing ring 3 on the first nut 2 to make it fit tightly with the nut. Then, insert the buckle 13 on the pull rod 7 into the card slot 14. By rotating the pull rod 7, the pull rod 7 rotates smoothly under the action of the bearing 10, drives the buckle 13 to move in the card slot 14, and finally engages tightly with the locking block 15. Due to the resilience provided by the spring 12, the buckle 13 is tightly pressed on the locking block 15 to ensure that it will not loosen. Subsequently, by tightening the second nut 5, the whole assembly is further fixed to ensure the firm connection between the first nut 2 and the fixing ring 3 without loosening. This design utilizes the mechanical locking principle and the elastic force of the spring 12, not only enhancing the anti - detachment effect of the fastener, but also ensuring its stability and sealing performance in a high - vibration environment.

[0025] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art to which it pertains.

Claims

1. An anti-loosening and sealed fastener assembly, characterized in that, Comprising: A bolt (1), on which a first nut (2) and a second nut (5) are threadedly connected, and a fixing ring (3) and a washer (4) are arranged between the first nut (2) and the second nut (5); A through hole (6) is arranged inside the first nut (2), and a pull rod (7) and a spring (12) are arranged inside the through hole (6). A bearing (10) and a retaining ring (11) are arranged on the pull rod (7). A buckle (13) is fixedly connected to the top of the pull rod (7). A clamping groove (14) and a sealing gasket (16) are arranged on the fixing ring (3), and a clamping block (15) is arranged inside the clamping groove (14).

2. The anti-loosening and sealing fastener assembly according to claim 1, wherein, The first nut (2) is located at the bottom of the bolt (1), and the second nut (5) is located on the outermost side of the bolt (1).

3. The anti-loosening and sealing fastener assembly according to claim 1, wherein, The fixing ring (3) is in contact with the first nut (2), and the washer (4) is located between the fixing ring (3) and the second nut (5).

4. A kind of anti-loosening and sealing fastener assembly according to claim 1, characterized in that, The through hole (6) penetrates the first nut (2), and the through hole (6) is located on both sides of the bolt (1).

5. A kind of anti-loosening and sealed fastener assembly according to claim 1, characterized in that, A retaining ring (9) is fixedly connected to the inner top of the through hole (6), and the retaining ring (9) is in contact with the retaining ring (11).

6. The anti-loosening and sealing fastener assembly according to claim 1, wherein A pull ring (8) is arranged outside the pull rod (7), and the pull ring (8) is located outside the through hole (6).

7. A kind of anti-loosening and sealing fastener assembly according to claim 1, characterized in that, The spring (12) is fixedly connected to the retaining ring (11), the bearing (10) is fixedly connected to the pull rod (7), and the retaining ring (11) is fixedly connected to the outside of the bearing (10).

8. The anti-loosening and sealing fastener assembly according to claim 1, wherein, The sealing gasket (16) is in contact with the first nut (2), and the buckle (13) is in contact with the bottom of the clamping block (15).

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