Anti-vibration lock nut

Abstract

The utility model relates to nut technical field, concretely is a kind of anti-vibration lock nut, including nut body, the end surface of nut body is provided with mounting ring two, the outer wall of mounting ring two, and the side close to nut body is provided with thread groove two, the outer wall of mounting ring two is equipped with the clamping block, and the thread groove two is threadedly connected with limiting component;The utility model is provided with mounting ring two, clamping block, limiting component and pressure component in the anti-vibration lock nut, and the mutual cooperation between above-mentioned structure in the process of device use, the static friction between elastic resistance piece and threaded rod is increased, effectively offsets the slackening tendency caused by vibration, realizes long-acting anti-loose, high reliability technical effect.

Description

Technical Field

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

[0002] A nut is a common mechanical fastener, usually used in conjunction with a bolt (or thread) to securely connect two or more parts together. Traditional nuts are prone to loosening due to the attenuation of friction between the threaded pairs under vibration, impact or variable load conditions, leading to connection failure. Existing anti-loosening methods (such as spring washers and double nuts) have some effect, but they have problems such as elastic degradation after long-term service and cumbersome operation, which make it difficult to meet the requirements of high reliability scenarios. Therefore, a vibration-resistant anti-loosening nut is needed to improve the above problems. Utility Model Content

[0003] To address the problem that traditional nuts are prone to loosening under vibration, impact, or variable load conditions due to the attenuation of friction between the threaded parts, leading to connection failure and failing to meet the requirements of high reliability scenarios, this utility model provides a vibration-resistant anti-loosening nut to solve the above-mentioned problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A vibration-resistant anti-loosening nut includes a nut body, an installation ring II is provided on the end face of the nut body, a threaded groove II is provided on the outer wall of the installation ring II and on the side close to the nut body, a snap-fit ​​block is installed on the upper part of the outer wall of the installation ring II, and a limit component is threadedly connected to the threaded groove II. The limiting component includes a connecting ring.

[0005] As a preferred embodiment of this utility model, the inner cavity of the connecting ring is provided with a threaded groove, and a plurality of elastic abutment pieces are evenly arranged on the top surface of the connecting ring. The top surface of the connecting ring is provided with a snap-fit ​​groove, and the snap-fit ​​block snaps into the snap-fit ​​groove.

[0006] As a preferred embodiment of this utility model, the first threaded groove and the second threaded groove are threadedly connected, and the elastic contact piece is in contact with the outer wall of the second mounting ring.

[0007] As a preferred embodiment of this utility model, an installation ring is installed on the bottom surface of the outer wall of the connecting ring.

[0008] As a preferred embodiment of this utility model, the end face of the nut body is symmetrically provided with an installation groove, and a pressing component is installed in the inner cavity of the installation groove.

[0009] As a preferred embodiment of this utility model, the pressing component includes a mechanical telescopic rod, the mechanical telescopic rod is installed on the bottom surface of the inner cavity of the mounting groove, and a connecting plate is installed on the end face of the mechanical telescopic rod.

[0010] As a preferred embodiment of this utility model, a spring is sleeved on the outer wall of the mechanical telescopic rod, the bottom surface of the spring is connected to the bottom surface of the inner cavity of the mounting groove, and the end face of the spring is connected to the bottom surface of the connecting plate.

[0011] In a preferred embodiment of this utility model, the top surface of the connecting disc is in contact with the bottom surface of the threaded groove.

[0012] Compared with the prior art, this utility model, by setting an installation ring, a snap-fit ​​block, a limiting component, and a pressing component in the vibration-resistant anti-loosening nut, increases the static friction between the elastic contact plate and the threaded rod through the cooperation of the above structures during the use of the device, effectively counteracting the loosening tendency caused by vibration, and achieving the technical effect of long-term anti-loosening and high reliability. Attached Figure Description

[0013] Figure 1 This is one of the overall structural schematic diagrams of this utility model; Figure 2 This is the second schematic diagram of the overall structure of this utility model; Figure 3 This is one of the cross-sectional structural schematic diagrams of this utility model; Figure 4 This is the second cross-sectional structural schematic diagram of the present invention; Figure 5 This is a schematic diagram of the limiting component structure in this utility model.

[0014] In the diagram: 1. Threaded rod; 2. Nut body; 3. Limiting assembly; 301. Connecting ring; 302. Mounting ring one; 303. Threaded groove one; 304. Elastic contact piece; 305. Snap-fit ​​groove; 4. Pressing assembly; 401. Mechanical telescopic rod; 402. Spring; 403. Connecting disc; 5. Mounting groove; 6. Mounting ring two; 7. Threaded groove two; 8. Snap-fit ​​block. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] Example: Please refer to Figure 1 - Figure 5 The vibration-resistant anti-loosening nut shown includes a nut body 2, an mounting ring 6 on the end face of the nut body 2, a threaded groove 7 on the outer wall of the mounting ring 6 and on the side close to the nut body 2, a snap-fit ​​block 8 installed on the upper part of the outer wall of the mounting ring 6, and a limit component 3 threadedly connected to the threaded groove 7. The limiting component 3 includes a connecting ring 301. The inner cavity of the connecting ring 301 is provided with a threaded groove 303. A plurality of elastic abutment pieces 304 are evenly arranged on the top surface of the connecting ring 301. The threaded groove 303 and the threaded groove 7 are threadedly connected. The elastic abutment pieces 304 are in contact with the outer wall of the mounting ring 6. The top surface of the connecting ring 301 is provided with a snap-fit ​​groove 305. The snap-fit ​​block 8 is snapped into the snap-fit ​​groove 305. When the device is not in use, the connecting ring 301 is threadedly connected to the threaded groove 7 through the threaded groove 1 303. When the device is in use, the threaded groove 1 303 and the threaded groove 7 are separated, and the connecting ring 301 and the elastic contact piece 304 are moved upward so that the elastic contact piece 304 contacts the threaded rod 1. At the same time, it prevents the connecting ring 301 from rotating between the snap-fit ​​groove 305 and the snap-fit ​​block 8, and makes the connecting ring 301 and the mounting ring 6 integral.

[0017] In this embodiment, specific references Figure 1 - Figure 5 A mounting ring 302 is installed on the bottom surface of the outer wall of the connecting ring 301. A mounting groove 5 is symmetrically opened on the end face of the nut body 2. A pressing component 4 is installed in the inner cavity of the mounting groove 5. The pressing component 4 includes a mechanical telescopic rod 401. The mechanical telescopic rod 401 is installed on the bottom surface of the inner cavity of the mounting groove 5. A connecting plate 403 is installed on the end face of the mechanical telescopic rod 401. A spring 402 is sleeved on the outer wall of the mechanical telescopic rod 401. The bottom surface of the spring 402 is connected to the bottom surface of the inner cavity of the mounting groove 5. The end face of the spring 402 is connected to the bottom surface of the connecting plate 403. The top surface of the connecting plate 403 is in contact with the bottom surface of the threaded groove 303. When the connecting ring 301 moves upward, the mechanical telescopic rod 401 extends under the action of the spring 402, and the connecting plate 403 at the top of the mechanical telescopic rod 401 will abut against the mounting ring 302. As the snap-fit ​​groove 305 and the snap-fit ​​block 8 snap together, the position of the connecting ring 301, the elastic contact piece 304 and the mounting ring 6 is adjusted, thereby improving the contact stability between the elastic contact piece 304 and the threaded rod 1.

[0018] When using the anti-vibration locking nut of this solution, the nut body 2 is threadedly connected to the threaded rod 1. Then, the connecting ring 301 is rotated, causing the threaded groove 1 303 and the threaded groove 2 7 in the connecting ring 301 to disengage from each other. When the threaded groove 1 303 and the threaded groove 2 7 disengage from each other, the mechanical telescopic rod 401 extends under the action of the spring 402. The connecting plate 403 at the top of the mechanical telescopic rod 401 will abut against the mounting ring 1 302, thereby moving the mounting ring 1 302 and the connecting ring 301 upward, and causing the top surface of the connecting ring 301 to contact the bottom surface of the snap-fit ​​block 8. Then, the connecting ring 301 is rotated, causing the snap-fit ​​groove 305 to snap into the snap-fit ​​block 8, thereby limiting the position of the connecting ring 301. At this time, the elastic contact piece 304 will disengage from the mounting ring 2 6. At this time, the elastic contact piece 304 will abut against the side wall of the threaded rod 1, increasing the friction between the elastic contact piece 304 and the threaded rod 1, thereby further limiting the position between the nut body 2, the limiting component 3 and the threaded rod 1, thus reducing the possibility of the nut body 2 loosening.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Anti-vibration lock nut comprising a nut body (2), characterized in that: The end face of the nut body (2) is provided with a second mounting ring (6). The outer wall of the second mounting ring (6) and the side close to the nut body (2) are provided with a second threaded groove (7). A snap-fit ​​block (8) is installed on the upper part of the outer wall of the second mounting ring (6). A limit component (3) is threadedly connected to the second threaded groove (7). The limiting component (3) includes a connecting ring (301).

2. An anti-vibration locking nut according to claim 1, wherein: The inner cavity of the connecting ring (301) is provided with a threaded groove (303), and a plurality of elastic abutment pieces (304) are evenly provided on the top surface of the connecting ring (301). The top surface of the connecting ring (301) is provided with a snap-fit ​​groove (305), and the snap-fit ​​block (8) is snapped into the snap-fit ​​groove (305).

3. The anti-vibration locking nut according to claim 2, characterized in that: The first threaded groove (303) and the second threaded groove (7) are threaded together, and the elastic abutment piece (304) is in contact with the outer wall of the second mounting ring (6).

4. An anti-vibration locking nut as defined in claim 1, wherein: An installation ring (302) is installed on the bottom surface of the outer wall of the connecting ring (301).

5. The anti-vibration locking nut according to claim 1, characterized in that: The nut body (2) has a mounting groove (5) symmetrically opened on its end face, and a pressing component (4) is installed in the inner cavity of the mounting groove (5).

6. An anti-vibration locking nut as defined in claim 5, wherein: The pressure-reducing component (4) includes a mechanical telescopic rod (401), the mechanical telescopic rod (401) is installed on the bottom surface of the inner cavity of the mounting groove (5), and a connecting plate (403) is installed on the end face of the mechanical telescopic rod (401).

7. The anti-vibration locking nut according to claim 6, characterized in that: A spring (402) is sleeved on the outer wall of the mechanical telescopic rod (401). The bottom surface of the spring (402) is connected to the bottom surface of the inner cavity of the mounting groove (5), and the end face of the spring (402) is connected to the bottom surface of the connecting plate (403).

8. An anti-vibration locking nut as claimed in claim 7, wherein: The top surface of the connecting plate (403) is in contact with the bottom surface of the threaded groove (303).

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