Self-locking shockproof fastener

Abstract

The utility model relates to fastener technical field especially relates to a self -locking shock -proof fastener. Its technical scheme includes nut and bolt still includes device ring plate, is fixedly connected in the top of nut, the top of device ring plate is opened and has the accommodation groove, self -locking mechanism includes: locking assembly is connected in the inside of accommodation groove, is used for limiting the rise of nut, unlocking assembly sets up in the inside of accommodation groove, is used for relieving locking assembly's restriction to nut, locking assembly includes clamping plate, connecting frame and spring, connecting frame with the inside bottom of accommodation groove is fixedly connected. The utility model through the synergies of locking assembly and unlocking assembly, realize the anti -loose function, the adaptive locking assembly is dynamically embedded with bolt thread line when screwing, effectively inhibits the vibration displacement, triggers the unlocking mechanism when the reverse operation, can complete the disassembly quickly, this design breaks through traditional fastener easy to come off and self -locking fastener difficult to disassemble defects, has the anti -vibration performance and convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to a self-locking anti-vibration fastener. Background Technology

[0002] In the field of mechanical engineering and equipment connection, fasteners (such as bolts, screws, nuts, etc.) are the core components for achieving reliable structural connections. In order to prevent external vibrations from causing fasteners to loosen, mechanical locking (such as spring washers, double nut structures) or additional friction (such as thread-locking adhesive, nylon lock nuts) are often used to achieve the anti-loosening effect.

[0003] However, while existing self-locking anti-vibration fasteners are easy to install, they are difficult to disassemble. For example, the additional friction may cause the threads to become sticky. Although this can provide self-locking and anti-vibration, the stickiness of the adhesive makes disassembly inconvenient and hinders the replacement or maintenance of the fastener. Therefore, this application proposes a self-locking anti-vibration fastener. Utility Model Content

[0004] The purpose of this invention is to address the problem of difficult disassembly of self-locking anti-vibration fasteners in the prior art, and to propose a self-locking anti-vibration fastener.

[0005] The technical solution of this utility model is as follows: A self-locking anti-vibration fastener, including a nut and a bolt, and further comprising:

[0006] The device ring plate is fixed to the top of the nut, and the top of the device ring plate is provided with a receiving groove;

[0007] Self-locking mechanisms include:

[0008] A locking component, connected inside the receiving groove, is used to limit the rise of the nut;

[0009] The unlocking component, located inside the receiving groove, is used to release the locking component from restricting the nut;

[0010] The locking assembly includes a locking plate, a connecting frame, and a spring. The connecting frame is fixedly connected to the bottom of the inner end of the receiving groove. The locking plate is rotatably connected to the inside of the connecting frame. The spring is fixedly connected between the receiving groove and the locking plate.

[0011] The unlocking assembly includes a rotating bar, a push rod, a limiting groove, an L-shaped rod, and a wedge block. The rotating bar is rotatably connected to the inner wall of the device ring plate. The push rod is fixed to the outer side of the rotating bar. The limiting groove is opened on the outer side of the device ring plate, and the push rod slides inside the limiting groove. The L-shaped rod is fixed to the inner side of the rotating bar. The wedge block is fixed to the outer side of the locking plate.

[0012] Optionally, a rotating groove is provided at one end of the L-bar near the inclined block, and a roller is rotatably connected inside the rotating groove.

[0013] Optionally, a push bar is fixedly connected to the end of the push rod away from the rotating bar, and a rubber pad is glued to the outside of the push bar.

[0014] Optionally, a rotating bar 2 is rotatably connected to the outer side of the ring plate of the device, and a fixing rod is fixedly connected to the outer side of the rotating bar 2. The end of the fixing rod away from the rotating bar 2 is fixedly connected to the push bar.

[0015] Optionally, the locking assembly is provided in two sets, and the two sets of locking assemblies are symmetrically distributed inside the receiving groove.

[0016] Optionally, the card plate has straight grooves inside.

[0017] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0018] This invention achieves anti-loosening function through the synergistic action of locking and unlocking components. The adaptive locking component dynamically engages with the bolt thread when tightened, effectively suppressing vibration displacement. When operated in the reverse direction, the unlocking mechanism is triggered, allowing for quick disassembly. This design overcomes the shortcomings of traditional fasteners that are easy to loosen and self-locking fasteners that are difficult to disassemble, combining anti-vibration performance with convenient operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a self-locking shockproof fastener;

[0020] Figure 2 This is a cross-sectional schematic diagram of the ring plate of the device;

[0021] Figure 3 for Figure 2 A magnified structural diagram at point A;

[0022] Figure 4 This is a schematic diagram of the push rod and straight groove.

[0023] Figure 5 This is a schematic diagram of the structure of the second strip;

[0024] Figure 6 for Figure 5 A magnified structural diagram at point B.

[0025] Reference numerals in the attached diagram: 1. Nut; 2. Device ring plate; 3. Clamping plate; 4. Connecting frame; 5. Spring; 6. Rotating bar one; 7. Push rod; 8. Limiting groove; 9. L-bar; 10. Inclined block; 11. Rotating groove; 12. Roller; 13. Push bar; 14. Rubber pad; 15. Rotating bar two; 16. Fixing rod; 17. Straight groove. Detailed Implementation

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] Example

[0028] like Figures 1-4 As shown, the present invention proposes a self-locking shockproof fastener, including a nut 1. First, the nut 1 is connected to an external bolt by a thread. The bolt is not specified in the text and is a common bolt available on the market, which will not be described in detail. It also includes a device ring plate 2 fixed to the top of the nut 1. When the nut 1 is connected, it will drive the device ring plate 2 to be simultaneously sleeved on the outside of the bolt. The device ring plate 2 will not contact the bolt. The top of the device ring plate 2 has a receiving groove, which can provide space for the swing of the structure.

[0029] Among them, such as Figures 2-4 As shown, the self-locking mechanism in this embodiment includes a locking component and an unlocking component. The self-locking mechanism is described in detail below:

[0030] The locking component is connected inside the receiving groove to restrict the upward movement of nut 1. When nut 1 moves the device ring plate 2 downward (the downward movement direction is along the direction of bolt tightening), it will simultaneously drive the locking component to contact the bolt. As the locking component moves, it engages with the threads on the outside of the bolt one by one as the downward position changes, so that it does not affect the downward movement. When it rises, the locking component will block the reset path of the device ring plate 2, thereby achieving the self-locking function. The unlocking component is set inside the receiving groove to release the restriction of the locking component on nut 1. When the unlocking component is triggered, the unlocking component can drive the locking component to disengage from the bolt. At this time, nut 1 can be rotated in the opposite direction, causing nut 1 and device ring plate 2 to rise. Through the above structure, when nut 1 moves downward, the locking component can automatically lock the reset path, and when disassembling, nut 1 can be quickly disassembled through the unlocking component.

[0031] In addition, such as Figure 1 , Figure 2 and Figure 3 As shown, the locking assembly includes a locking plate 3, a connecting bracket 4, and a spring 5. The locking assembly is described in detail below:

[0032] The connecting frame 4 is fixedly connected to the bottom of the receiving groove. The clamping plate 3 is rotatably connected to the inside of the connecting frame 4. The connecting frame 4 supports the clamping plate 3, allowing the clamping plate 3 to rotate along the inside of the connecting frame 4. The spring 5 is fixed between the receiving groove and the clamping plate 3. In the initial state, the spring 5 pulls the clamping plate 3 to a position close to the center of the nut 1. When the nut 1 is tightened along the bolt, the clamping plate 3 will contact the bolt. The bolt will then exert a pushing force on the clamping plate 3, causing the clamping plate 3 to swing, providing space for the connection between the nut 1 and the bolt. The clamping plate 3 will then pull the spring 5, causing the spring 5 to deform and generate elastic potential energy. The reaction force of the spring 5 deformation can drive the clamping plate 3 to always be in contact with the thread on the outside of the bolt. When the nut 1 rotates in the opposite direction and disengages from the outside of the bolt, the bolt can no longer exert a pushing force on the clamping plate 3, and the clamping plate 3 will then be unable to swing. The clamping plate 3 will then be in close contact with the thread on the outside of the bolt, causing the device ring plate 2 to be unable to rotate in the opposite direction, thus achieving the self-locking function.

[0033] It should be noted that, as Figure 2 , Figure 3 and Figure 4 As shown, the unlocking assembly includes a rotating bar 6, a push rod 7, a limiting groove 8, an L-shaped rod 9, and a wedge block 10. The unlocking assembly is described in detail below:

[0034] The rotating bar 6 is rotatably connected to the inner wall of the device ring plate 2, and the push rod 7 is fixed to the outer side of the rotating bar 6. Pushing the push rod 7 will... Figure 4 As the viewing angle rotates counterclockwise, the rotation of push rod 7 will drive the rotation of rotating bar 6. The limiting groove 8 is opened on the outside of the device ring plate 2, and push rod 7 slides inside the limiting groove 8. The opening of the limiting groove 8 can limit the movement distance of push rod 7, ensuring that the opening range of the limiting groove 8 is the maximum movement range of push rod 7. L rod 9 is fixed to the inside of rotating bar 6. The rotation of rotating bar 6 will drive L rod 9 to move. The inclined block 10 is fixed to the outside of clamping plate 3. The movement path of L rod 9 will contact and squeeze the inclined surface of inclined block 10. When the inclined block 10 is under force, it will move. The movement of inclined block 10 will drive clamping plate 3 to swing away from bolt, so that clamping plate 3 is disengaged from the outer thread of bolt. At this time, nut 1 can be rotated in the opposite direction to disengage it from the outside of bolt.

[0035] Among them, such as Figure 3 As shown, a rotating groove 11 is provided at one end of the L-rod 9 near the inclined block 10. A roller 12 is rotatably connected inside the rotating groove 11. The roller 12 can reduce the friction between the L-rod 9 and the inclined block 10, thereby extending the service life of the device.

[0036] Furthermore, such as Figure 5 and Figure 6As shown, a push bar 13 is fixedly connected to the end of the push rod 7 away from the rotating bar 6. The push bar 13 makes it easier for the user to push the push rod 7. The push bar 13 has a larger area and more force points, making it easier to push the push rod 7. A rubber pad 14 is glued to the outside of the push bar 13. The rubber pad 14 increases the friction, and the rubber material of the rubber pad 14 also improves the comfort when pushing the push bar 13.

[0037] In addition, such as Figure 5 and Figure 6 As shown, a rotating bar 15 is rotatably connected to the outer side of the device ring plate 2. A fixing rod 16 is fixedly connected to the outer side of the rotating bar 15. The end of the fixing rod 16 away from the rotating bar 15 is fixedly connected to the push bar 13. The rotating bar 15 and the fixing rod 16 can support the push bar 13. If the push bar 13 is supported by the push rod 7 alone, it is easy to cause excessive local pressure. The rotating bar 15 and the fixing rod 16 can work with the push rod 7 to support both ends of the push bar 13, making the push bar 13 more stable when it moves. Furthermore, the design of the rotating bar 15 being rotatably connected to the device ring plate 2 will not hinder the normal operation of the push bar 13.

[0038] Furthermore, such as Figure 4 and Figure 5 As shown, the locking assembly is provided in two sets, which are symmetrically distributed inside the receiving groove. The two sets of locking assemblies can replace the other set if one set is damaged. Furthermore, the symmetrical arrangement of the two sets of locking assemblies can make the self-locking operation more stable.

[0039] In addition, such as Figure 5 As shown, the card plate 3 has a straight groove 17 inside. The opening of the straight groove 17 can save working costs and reduce the area of ​​the card plate 3.

[0040] In this embodiment, the nut 1 is first connected to the external bolt via threads. When the nut 1 is connected, it causes the device ring plate 2 to be simultaneously fitted onto the outside of the bolt. The device ring plate 2 does not contact the bolt. When the nut 1 moves the device ring plate 2 downwards, the clamping plate 3 contacts the bolt. The bolt then applies a pushing force to the clamping plate 3, causing it to swing. The clamping plate 3 then pulls the spring 5, causing the spring 5 to deform and generate elastic potential energy. The reaction force of the spring 5's deformation keeps the clamping plate 3 always in contact with the threaded line on the outside of the bolt. When the nut 1 rotates in the opposite direction and disengages from the outside of the bolt, the bolt can no longer apply a pushing force to the clamping plate 3, and the clamping plate 3 cannot swing. The clamping plate 3 then tightly contacts the threaded line on the outside of the bolt, preventing the device ring plate 2 from rotating in the opposite direction, thus achieving a self-locking function. The push rod 7 is then pushed... Figure 4As the viewing angle rotates counterclockwise, the rotation of push rod 7 will drive the rotation of rotating bar 6, which in turn will drive L rod 9 to move. The path of L rod 9 will contact and press the inclined surface of inclined block 10. When the inclined block 10 is under force, it will move. The movement of inclined block 10 will then drive the clamping plate 3 to swing away from the bolt, causing the clamping plate 3 to disengage from the outer thread of the bolt. At this time, the nut 1 can be rotated in the opposite direction to disengage it from the outer side of the bolt.

[0041] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A self-locking anti-vibration fastener, comprising a nut (1) and a bolt, characterized in that, Also includes: The device ring plate (2) is fixed to the top of the nut (1), and the top of the device ring plate (2) is provided with a receiving groove; Self-locking mechanisms include: A locking assembly, connected inside the receiving groove, is used to limit the rise of the nut (1); The unlocking component, located inside the receiving groove, is used to release the locking component from restricting the nut (1); The locking assembly includes a locking plate (3), a connecting frame (4), and a spring (5). The connecting frame (4) is fixedly connected to the bottom of the inner end of the receiving groove. The locking plate (3) is rotatably connected to the inside of the connecting frame (4). The spring (5) is fixedly connected between the receiving groove and the locking plate (3). The unlocking assembly includes a rotating bar (6), a push rod (7), a limiting groove (8), an L-shaped rod (9), and a wedge (10). The rotating bar (6) is rotatably connected to the inner wall of the device ring plate (2). The push rod (7) is fixed to the outer side of the rotating bar (6). The limiting groove (8) is opened on the outer side of the device ring plate (2), and the push rod (7) slides inside the limiting groove (8). The L-shaped rod (9) is fixed to the inner side of the rotating bar (6), and the wedge (10) is fixed to the outer side of the locking plate (3).

2. The self-locking shockproof fastener according to claim 1, characterized in that, The L-bar (9) has a rotating groove (11) at one end near the inclined block (10), and a roller (12) is rotatably connected inside the rotating groove (11).

3. The self-locking shockproof fastener according to claim 1, characterized in that, The push rod (7) is fixed to a push bar (13) at the end away from the rotating bar (6), and a rubber pad (14) is glued to the outside of the push bar (13).

4. A self-locking anti-vibration fastener according to claim 3, characterized in that, The outer side of the device ring plate (2) is rotatably connected to a rotating bar two (15), and a fixing rod (16) is fixedly connected to the outer side of the rotating bar two (15). The end of the fixing rod (16) away from the rotating bar two (15) is fixedly connected to the push bar (13).

5. A self-locking anti-vibration fastener according to claim 1, characterized in that, The locking components are provided in two sets, and the two sets of locking components are symmetrically distributed inside the receiving groove.

6. A self-locking shockproof fastener according to claim 1, characterized in that, The card plate (3) has a straight groove (17) inside.

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