A removable self-locking circlip nut assembly

By adopting a spindle, U-shaped block and ratchet structure in the self-locking spring nut assembly, combined with reset and early warning components, the problem of inconvenience in the prior art is solved, and a more efficient and safe self-locking and disassembly process is achieved.

CN119288968BActive Publication Date: 2025-03-18WENZHOU HTM MOLD DEV
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Patent Information

Application Number
CN202411838938.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-03-18
Estimated Expiration
2044-12-13

AI Technical Summary

Technical Problem

The existing self-locking spring nut assembly requires continuous external force to overcome the elastic resetting force of the spring during installation and disassembly, resulting in inconvenience in operation, especially during maintenance and bolt replacement, requiring repeated twisting and operation.

Method used

Through the coordination of the spindle, U-shaped block and ratchet groove structure, the pressure plate is displaced side by side after compression, so as to define the position of the mounting block, and the self-locking of the pressure plate is achieved through the ratchet groove, keeping the assembly in a state of overcoming the spring elastic force. At the same time, the design of reset components and early warning components allows for rapid reset and improved use safety.

Benefits of technology

It realizes that the components are kept self-locked without continuously applying large force, simplifies the installation and disassembly process, and improves operational convenience and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a detachable self-locking retaining ring nut assembly, which relates to the technical field of self-locking nuts, including a nut assembly body, the nut assembly body including a tightening part body, a movable part body and two retaining rings, the surface of the retaining ring close to the movable part body is fixedly connected with two mounting blocks, the surface of the movable part body is symmetrically provided with mounting grooves, the surface of the movable part body is fixedly connected with a shell, the movable part body is provided with a cavity matched with the shell, pressure plates are arranged on both sides of the shell, a locking component is also included to make the two pressure plates move back to back, a reset component and two groups of early warning components are also included to limit the positions of the two pressure plates, and the two pressure plates can be quickly reset when reset, and the two groups of early warning components are used to improve the safety of the two pressure plates. The present invention has the effect of improving the convenience of maintenance and facilitating the use of personnel through the mutual cooperation between the above structures.
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Description

Technical Field

[0001] The invention relates to the technical field of self-locking nuts, in particular to a detachable self-locking retaining ring nut assembly. Background Art

[0002] Nuts are commonly used components that match bolts. Their working principle is to use the friction between nuts and bolts for self-locking. They are commonly used in the installation and connection of multiple mechanical structures. Under dynamic loads, nuts and bolts are easily affected by vibrations for a long time, which may lead to fastening failure. At this time, a nut with self-locking function is needed to ensure the reliability of equipment use.

[0003] For example, the patent has been published, patent number: CN202311691142.2, patent name: a detachable self-locking retaining ring nut assembly. In this patent, the detachable and self-locking functions are realized by a tightening part, a movable part and two retaining rings with different functions. However, in this patent, when installing the assembly or replacing the installed assembly bolts, it is necessary to press the tightening part and the movable part to maintain the continuity of the internal thread according to the method mentioned in this published patent. After the distance between the tightening part and the movable part is reduced, the tightening part is rotated to complete the connection or disassembly of the nut and the bolt. It can be seen that in actual use, whether it is the initial installation of the equipment, maintenance of components, replacement of bolts, etc., it is necessary to first First, the tightening part and the movable part are always kept in a tightened state, that is, the retaining spring is kept in a stretched state, that is, the personnel always need to apply a certain external force to always overcome the elastic reset force of the retaining spring to maintain the continuity of the threads in the tightening part 1 and the movable part 2. According to daily use experience, except for the initial installation, the replacement and maintenance of the bolt assembly is not completed instantaneously, that is, not only a period of tightening is required, but also other maintenance operations such as applying grease and adjusting the position of the gasket are required when the component equipment is in a special occasion. This reflects that in this process, it is necessary to repeatedly or continuously overcome the stress of the retaining spring. Therefore, although the above method has the functions of self-locking and detachable, it is still inconvenient in actual use, and the convenience of installation and disassembly needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide a detachable self-locking retaining ring nut assembly, which has the effect of improving the convenience of component maintenance and facilitating personnel use, and solves the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a detachable self-locking circlip nut assembly, comprising a nut assembly body, the nut assembly body comprising a tightening part body, a movable part body and two circlips, the surface of the circlip close to the movable part body is fixedly connected with two mounting blocks, and the surface of the movable part body is symmetrically provided with mounting grooves;

[0006] A shell is fixedly connected to the surface of the movable body, a cavity matching the shell is formed on the movable body, and pressure plates are provided on both sides of the shell;

[0007] A locking component is also included, and the locking component is arranged in the housing to make the two pressing plates move away from each other;

[0008] It also includes a reset component, which is in transmission connection with the locking component to limit the positions of the two pressing plates, and the two pressing plates can be quickly reset when reset;

[0009] It also includes two groups of early warning components, and both groups of early warning components are transmission-connected with the locking component to improve the use safety of the two pressure plates.

[0010] Optionally, the locking component includes: a main shaft, the shaft wall of the main shaft is rotatably connected to the inner wall of the shell, the shaft wall of the main shaft is fixedly connected to a main board, the surface of the main board is provided with two arc grooves, the groove walls of the two arc grooves are slidably connected to a fixed shaft, the shaft walls of the two fixed shafts are fixedly connected to a U-shaped block, the surfaces of the two U-shaped blocks are fixedly connected to a connecting plate, the opposite sides of the two connecting plates are fixedly connected to a locking rod, the surface of the shell is provided with two openings, the two locking rods pass through the two openings respectively, the two pressure plates are fixedly connected to the ends of the two locking rods respectively, the end of the main shaft is fixedly connected to a connecting disk, the surface of the connecting disk is fixedly connected to a circular disk, and the inner wall of the circular disk is provided with a ratchet groove.

[0011] Optionally, the reset component includes: a reset plate and a reset spring, a sleeve is provided on the inner wall of the main shaft, the main shaft is provided with a rotating shaft through the through hole, the lower end of the rotating shaft is fixedly connected to the top surface of the reset plate, the top surface of the reset plate is fixedly connected to a reset disk, a notch is provided on the side wall of the reset disk, the inner wall of the notch is rotatably connected to a clamping plate, the surface of the clamping plate is fixedly connected to a matching spring, the end of the matching spring is fixedly connected to the inner wall of the notch, the reset spring is fixedly connected to the inner wall of the shell, and the end of the reset spring is fixedly connected to the surface of the reset plate.

[0012] Optionally, the warning component includes: shaft body 1, the inner wall of the locking rod is rotatably connected to the shaft wall of shaft body 1, the shaft wall of shaft body 1 is fixedly connected to two rod members, the inner walls of the two rod members are commonly fixedly connected to shaft body 2, the end of shaft body 2 is rotatably connected to the inner wall of the shell, the shaft wall of shaft body 2 is fixedly connected to a fan-shaped plate, the surface of the fan-shaped plate is rotatably connected to shaft body 3, the shaft wall of shaft body 3 is rotatably connected to a warning rod, the end of the warning rod is hinged with a warning plate, the inner wall of the shell is provided with a warning cavity, the inner wall of the shell is fixedly connected to a warning frame, the warning plate is slidably connected to the inner wall of the warning frame, the surface of the warning plate is fixedly connected to a warning spring, and the end of the warning spring is fixedly connected to the inner wall of the warning cavity.

[0013] Optionally, a thumbwheel is fixedly connected to the shaft wall of the main shaft, and a side wall of the thumbwheel is provided with anti-slip patterns.

[0014] Optionally, the surfaces of the two pressure plates are both provided with anti-skid pads, and the materials of the two anti-skid pads are both rubber.

[0015] Optionally, the position of the second shaft body is adapted to the size of the locking rod, and the size of the second shaft body is adapted to the size of the fan-shaped plate.

[0016] Optionally, the size of the shell is adapted to the positions of the two mounting grooves, and the size of the two pressure plates is adapted to the size of the two mounting blocks respectively.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention cooperates with the main shaft, the U-shaped block and the equal ratchet groove structure, so that after the personnel press the tightening part body and the movable part body, the two pressure plates are synchronously displaced away from each other, thereby limiting the positions of the two mounting blocks on both sides in the form of pressure, and the self-locking property of the pressure plates is achieved through the ratchet groove, so that the component is always kept in a state of overcoming the elastic force of the retaining spring, and there is no need for the personnel to apply more force to maintain the fitting state between the movable part body and the tightening part body. The personnel can have a free auxiliary hand to perform other corresponding operations, thereby facilitating the use of the personnel.

[0019] Second, the present invention cooperates with the structures such as the rotating shaft, the retaining spring and the reset spring, so that when the maintenance and installation are completed, the personnel can press the rotating shaft, and with the cooperation of the retaining spring, the fitting state between the movable part body and the tightening part body is released, and the two pressure plates are quickly reset. Compared with some traditional methods, there is no need to repeatedly rotate the driving source in the reverse direction to drive the displacement of the two pressure plates. No matter where the two pressure plates are on the displacement path, they can be reset with one key, which is convenient to use;

[0020] At the same time, during actual use, maintenance personnel can pinch the movable body with two fingers, and whether it is driving or unlocking the pressure plate, it can be operated with the remaining finger, which is easy to operate and more convenient.

[0021] 3. The present invention cooperates with structures such as the fan-shaped plate, the warning plate and the warning spring, so that if the component needs to release the expansion state of the retaining spring, it is necessary to actively overcome the elastic force of the warning spring again. In this way, the structure can be made more stable, the two pressure plates are safer, and there will be no structural damage to the snap-on plate and the ratchet groove, which will lead to the possibility of instantaneous restoration of self-locking, and it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is an axonometric view of the present invention;

[0023] Figure 2 For the present invention Figure 1 An enlarged view of the middle shell portion;

[0024] Figure 3 A cross-sectional view of the housing and internal structure of the present invention;

[0025] Figure 4 It is a transmission schematic diagram between the rod and the early warning board of the present invention;

[0026] Figure 5 It is a transmission schematic diagram between the rotating shaft and the disc of the present invention;

[0027] Figure 6 For the present invention Figure 5 A magnified view of the structure in the middle.

[0028] In the figure: 1, nut assembly body; 101, tightening part body; 102, movable part body; 103, retaining spring;

[0029] 2. Mounting block; 3. Mounting groove; 4. Shell; 5. Cavity; 6. Pressure plate; 7. Main shaft; 8. Main board; 9. Arc groove; 10. Fixed shaft; 11. U-shaped block; 12. Connecting plate; 13. Locking rod; 14. Connecting plate; 15. Disc; 16. Ratchet groove; 17. Reset plate; 18. Rotating shaft; 19. Reset plate; 20. Notch; 21. Snap-on plate; 22. Matching spring; 23. Reset spring; 24. Shaft body one; 25. Rod; 26. Shaft body two; 27. Fan-shaped plate; 28. Shaft body three; 29. ​​Warning rod; 30. Warning plate; 31. Warning cavity; 32. Warning frame; 33. Warning spring; 34. Dial wheel. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] For example, see Figures 1 to 6 The present invention provides a detachable self-locking retaining ring nut assembly, including a nut assembly body 1, the nut assembly body 1 includes a tightening part body 101, a movable part body 102 and two retaining rings 103, the surface of the retaining ring 103 close to the movable part body 102 is fixedly connected with two mounting blocks 2, and the surface of the movable part body 102 is symmetrically provided with mounting grooves 3.

[0032] The surface of the movable body 102 is fixedly connected with the shell 4 . The movable body 102 is provided with a cavity 5 matched with the shell 4 . Both sides of the shell 4 are provided with pressure plates 6 .

[0033] The retaining ring nut assembly also includes a locking component, a reset component and two groups of warning components. The locking component is arranged in the shell 4, the reset component is transmission connected to the locking component, and the two groups of warning components are transmission connected to the locking component to improve the safety of the two pressure plates 6.

[0034] In this embodiment, the tightening part body 101 and the movable part body 102 are pressed together, the distance between the tightening part body 101 and the movable part body 102 is reduced, and the thread of the nut assembly body 1 is smoothly connected. Then, the tightening part body 101 can be rotated to complete the connection between the nut assembly body 1 and the bolt. When the installation is completed, the tightening part body 101 and the movable part body 102 are loosened, and the two retaining springs 103 rebound, and the thread lines inside the nut assembly body 1 are disconnected, which respectively generate different axial forces on both sides of the thread of the bolt, increase the friction force, and achieve a self-locking effect.

[0035] This solution is a further improvement on the reference case, and the specific principle and structure of the self-locking function are consistent with the reference case, wherein the tightening part body 101 corresponds to the tightening part in the case, the movable part body 102 corresponds to the movable part, the two retaining springs 103 respectively correspond to the first retaining spring and the second retaining spring in the case, the mounting groove 3 corresponds to the slide groove in the case, and the mounting block 2 corresponds to the connecting block structure in the case. This solution improves the reference case, and the consistent parts such as the tightening part body 101, the two retaining springs 103, including but not limited to the connection relationship between the above-mentioned structures, are consistent with and cover the reference case, and will not be repeated here.

[0036] When personnel maintain the components or replace multiple components at a unified level, after tightening the tightening part body 101 and the movable part body 102, the two pressure plates 6 can be displaced away from each other through the locking component, thereby pressing the mounting block 2, so that the mounting block 2 cannot be reset along the original path, so that the mounting block 2 and the mounting groove 3 can maintain a fixed relative position relationship. At this time, the personnel do not need to apply more external force to tighten the tightening part body 101 and the movable part body 102, so that the personnel can free their hands and conveniently perform maintenance and disassembly operations. At the same time, the resetting component makes the position of the two pressure plates 6 after displacement self-locking. Even if the personnel's hands are detached, the restriction on the mounting block 2 will not be automatically released. When unlocking, the two pressure plates 6 can also be quickly reset, which is convenient to use.

[0037] In the above process, by providing two sets of warning components, the safety of the two pressure plates 6 can be improved, and possible factors of structural damage can be prevented from causing self-locking failure.

[0038] See also Figure 1 and Figure 2 The locking component includes a main shaft 7, the shaft wall of the main shaft 7 is fixedly connected with a dial wheel 34, and the side wall of the dial wheel 34 is provided with anti-slip patterns. By turning the dial wheel 34 with a finger, the main shaft 7 can be easily rotated.

[0039] See also Figures 2 to 6 The shaft wall of the main shaft 7 is rotatably connected to the inner wall of the shell 4, the shaft wall of the main shaft 7 is fixedly connected to the main board 8, the surface of the main board 8 is provided with two arc grooves 9, the groove walls of the two arc grooves 9 are slidably connected with fixed shafts 10, the shaft walls of the two fixed shafts 10 are fixedly connected with U-shaped blocks 11, the surfaces of the two U-shaped blocks 11 are fixedly connected with connecting plates 12, the opposite sides of the two connecting plates 12 are fixedly connected with locking rods 13, the surface of the shell 4 is provided with two openings, the two locking rods 13 pass through the two openings respectively, and the two pressure plates 6 are fixedly connected to the ends of the two locking rods 13 respectively.

[0040] A connecting disk 14 is fixedly connected to the end of the main shaft 7 , a circular disk 15 is fixedly connected to the surface of the connecting disk 14 , and a ratchet groove 16 is formed on the inner wall of the circular disk 15 .

[0041] In this embodiment, after the personnel presses the tightening part body 101 and the movable part body 102, the main shaft 7 can be rotated. Through the self-rotation of the main shaft 7, the main board 8 can be rotated in a circular manner. Through the circumferential rotation of the main board 8, the two arc grooves 9 can be displaced in a circular manner, so that the two fixed shafts 10 can slide along the groove walls of the two arc grooves 9 respectively. This displacement process constrains the locking rod 13 through the housing 4. Since the two ends of the arc groove 9 are respectively located on the sides of the main board 8, that is, the distance between the two ends of the arc groove 9 and the main shaft 7 is Different, therefore, with the sliding of the two fixed shafts 10, the two U-shaped blocks 11 can be displaced away from each other, and through the displacement of the two U-shaped blocks 11 away from each other, the two connecting plates 12 can be displaced away from each other, and through the displacement of the two connecting plates 12 away from each other, the two locking rods 13 can be displaced away from each other, that is, through the two locking rods 13, the two pressing plates 6 are pushed to displace away from each other, until the two pressing plates 6 are pressed against the surfaces of the two mounting blocks 2, respectively, so that the position of the mounting block 2 can be limited.

[0042] During the rotation of the main shaft 7, the connecting disk 14 will be synchronously driven to rotate. The transmission of the connecting disk 14 can cause the circular disk 15 to rotate, that is, the ratchet groove 16 in the circular disk 15 will perform a circumferential displacement.

[0043] See also Figures 2 to 6 The reset component includes a reset plate 17 and a reset spring 23. A sleeve is provided on the inner wall of the main shaft 7. A rotating shaft 18 is sleeved on the main shaft 7 through the through hole. The lower end of the rotating shaft 18 is fixedly connected to the top surface of the reset plate 17. A reset disk 19 is fixedly connected to the top surface of the reset plate 17. A notch 20 is provided on the side wall of the reset disk 19. A clamping plate 21 is rotatably connected to the inner wall of the notch 20. A matching spring 22 is fixedly connected to the surface of the clamping plate 21. The end of the matching spring 22 is fixedly connected to the inner wall of the notch 20.

[0044] The return spring 23 is fixedly connected to the inner wall of the housing 4 , and the end of the return spring 23 is fixedly connected to the surface of the return plate 17 .

[0045] In this embodiment, during the circumferential displacement of the ratchet groove 16 in the above-mentioned disc 15, the inclined surface of the ratchet groove 16 will continuously press against the clamping plate 21, so that the ratchet groove 16 will push the clamping plate 21 to deflect during the contact with the clamping plate 21, that is, the matching spring 22 is compressed, until the ratchet groove 16 is disengaged from the clamping plate 21, and under the action of the matching spring 22, the clamping plate 21 is again matched with the next adjacent inclined surface on the ratchet groove 16, so that the main shaft 7 can be Figure 3When the locking plate 21 is rotated counterclockwise in the direction shown, the clamping plate 21 will not block the ratchet groove 16, and the two pressing plates 6 are pressed against the surfaces of the two mounting blocks 2 respectively, and the position of the mounting block 2 is limited. At this time, under the elastic action of the clamping spring 103, the mounting block 2 is driven to press against the pressing plate 6, and the ratchet groove 16 is driven Figure 3 Rotate clockwise in the direction shown, and the end of the clamping plate 21 cooperates with the straight edge of the ratchet groove 16, which will prevent the ratchet groove 16 from rotating clockwise. In this way, the positions of the two pressure plates 6 can be locked to keep their positions unchanged, that is, the clamping spring 103 is kept in the stretched state, that is, the continuity of the internal thread of the nut assembly body 1 is maintained. At this time, personnel can perform other operations, such as replacing bolts, etc., which is convenient to use.

[0046] It is worth noting that, in the above process, the return spring 23 prevents the clamping plate 21 from rotating.

[0047] If it is necessary to restore the self-locking property of the nut assembly body 1, the rotating shaft 18 can be pressed down to cause relative sliding between the rotating shaft 18 and the main shaft 7, so that the reset spring 23 can be compressed, that is, the axial displacement of the reset plate 17 causes misalignment between the ratchet groove 16 and the clamping plate 21. At this time, the ratchet groove 16 loses the limit of the clamping plate 21. At this time, under the reset force of the clamping spring 103, the two pressure plates 6 can be reset.

[0048] By adopting the above-mentioned method, firstly, the positions of the two mounting blocks 2 on both sides can be limited in the form of pressing, and the self-locking property of the pressing plate 6 can be realized through the ratchet groove 16, so that the elastic force of the retaining spring 103 can be always overcome. There is no need for personnel to exert more force to maintain the fitting state between the movable part body 102 and the tightening part body 101. Personnel can have a free auxiliary hand to perform other corresponding operations, thereby making it convenient for personnel to use.

[0049] When the inspection and installation are completed, the personnel can press the rotating shaft 18. At this time, under the elastic reset force of the retaining spring 103, the fitting state between the movable part body 102 and the tightening part body 101 can be released, and the two pressure plates 6 can be quickly reset. This makes it more convenient to use. Compared with some traditional methods, there is no need to repeatedly rotate the driving source in the opposite direction to drive the two pressure plates 6 to move. No matter where the two pressure plates 6 are on the displacement path, they can be reset with one button, which is easy to use.

[0050] At the same time by Figure 1 It can be seen that in actual use, the maintenance personnel pinch the movable body 102 with two fingers, and both the rotation of the main shaft 7 and the pressing of the shaft 18 can be operated with the remaining one finger, which is highly convenient to operate.

[0051] Embodiment 2, based on the above embodiment:

[0052] See also Figures 2 to 4 The warning component includes a shaft body 24, the inner wall of the locking rod 13 is rotatably connected to the shaft wall of the shaft body 1 24, the shaft wall of the shaft body 1 24 is fixedly connected to two rods 25, the inner walls of the two rods 25 are commonly fixedly connected to a shaft body 26, the end of the shaft body 26 is rotatably connected to the inner wall of the shell 4, the shaft wall of the shaft body 26 is fixedly connected to a fan-shaped plate 27, the surface of the fan-shaped plate 27 is rotatably connected to a shaft body 3 28, the shaft wall of the shaft body 3 28 is rotatably connected to a warning rod 29, the end of the warning rod 29 is hinged with a warning plate 30, a warning cavity 31 is opened on the inner wall of the shell 4, a warning frame 32 is fixedly connected to the inner wall of the shell 4, the warning plate 30 is slidably connected to the inner wall of the warning frame 32, a warning spring 33 is fixedly connected to the surface of the warning plate 30, and the end of the warning spring 33 is fixedly connected to the inner wall of the warning cavity 31.

[0053] In the present embodiment, during the displacement of the locking rod 13, the shaft body 1 24 will be pushed to displace synchronously. At this time, the two rods 25 will be used to transmit the shaft body 26 so that the fan-shaped plate 27 will be deflected, thereby the shaft body 3 28 will be displaced in a circular arc trajectory, and then the warning rod 29 will be used to transmit the warning plate 30 so that the warning plate 30 will be reciprocated in the warning frame 32. In this way, the warning spring 33 can be actively compressed once. It can be seen that if the expansion state of the retaining spring 103 needs to be released, the structure needs to actively overcome the elastic force of the warning spring 33 again. In this way, the structure can be made more stable, the two pressure plates 6 can be made safer, and there will be no partial structural damage to the snap-in plate 21 and the ratchet groove 16, which may lead to the possibility of instantaneous restoration of self-locking, thereby making it more convenient to use.

[0054] Embodiment 3, based on the above embodiment:

[0055] See also Figure 2 The surfaces of the two pressure plates 6 are both provided with anti-skid pads, and the materials of the two anti-skid pads are both rubber. By setting the anti-skid pads, the friction between the pressure plates 6 and the mounting block 2 can be increased to prevent slipping.

[0056] See also Figure 3 The position of the second shaft body 26 is adapted to the size of the locking rod 13, and the size of the second shaft body 26 is adapted to the size of the fan-shaped plate 27. By limiting the size of the second shaft body 26, when the locking rod 13 is displaced once, the fan-shaped plate 27 can be deflected at a predetermined angle, so that the early warning spring 33 completes a process of active compression and then active release.

[0057] Also, see Figure 1 and Figure 2The size of the shell 4 is adapted to the positions of the two mounting grooves 3 , and the sizes of the two pressing plates 6 are adapted to the sizes of the two mounting blocks 2 .

[0058] In this embodiment, by limiting the sizes of the pressing plate 6 and the mounting block 2, when the pressing plate 6 contacts the surface of the mounting block 2, the stress on the contact surface of the pressing plate 6 is uniform, and the practical effect is better.

[0059] Working principle: When the detachable self-locking retaining ring nut assembly is used, the tightening part body 101 and the movable part body 102 are pressed tightly, the distance between the tightening part body 101 and the movable part body 102 is reduced, and the thread of the nut assembly body 1 is smoothly connected. Then the tightening part body 101 can be rotated to complete the connection between the nut assembly body 1 and the bolt. When the installation is completed, the tightening part body 101 and the movable part body 102 are loosened, the two retaining rings 103 rebound, and the thread lines inside the nut assembly body 1 are disconnected, which respectively generate different axial forces on both sides of the bolt thread, increase the friction force, and achieve a self-locking effect.

[0060] When personnel maintain the components or replace multiple components at a unified level, they can rotate the main shaft 7 to make the two pressure plates 6 move away from each other, thereby pressing the mounting block 2, making it impossible for the mounting block 2 to be reset along the original path. At the same time, the mounting block 2 and the mounting groove 3 maintain a fixed relative position relationship through the cooperation of the clamping plate 21 and the ratchet groove 16. At this time, personnel do not need to apply more external force to tighten the tightening part body 101 and the movable part body 102, so that personnel can have their hands free to conveniently perform maintenance and disassembly operations. In this process, the warning spring 33 will also be actively squeezed once, so that the warning spring 33 will actively produce a deformation once. In this way, through the setting of the warning spring 33, if the expansion state of the clamping spring 103 needs to be released, the structure needs to actively overcome the elastic force of the warning spring 33 again, thereby making the structure more stable, the two pressure plates 6 safer, and there will be no partial structural damage of the clamping plate 21 and the ratchet groove 16, which will lead to the possibility of instantaneous restoration of self-locking, which is further convenient to use.

[0061] When the inspection and installation are completed, the personnel can press the rotating shaft 18. At this time, under the elastic restoring force of the retaining spring 103, the fitting state between the movable part body 102 and the tightening part body 101 can be released, and the two pressure plates 6 can be quickly reset.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable self-locking circlip nut assembly, comprising a nut assembly body (1), wherein the nut assembly body (1) comprises a tightening part body (101), a movable part body (102) and two circlips (103), characterized in that: Two mounting blocks (2) are fixedly connected to the surface of the clamping spring (103) close to the movable part body (102), and mounting grooves (3) are symmetrically provided on the surface of the movable part body (102); The surface of the movable part body (102) is fixedly connected to a shell (4); a cavity (5) adapted to the shell (4) is provided on the movable part body (102); and pressure plates (6) are provided on both sides of the shell (4); The circlip nut assembly also includes: A locking component, the locking component being arranged in the housing (4) so ​​as to cause the two pressing plates (6) to move away from each other; A reset component, the reset component being in driving connection with the locking component so as to limit the positions of the two pressing plates (6), and the two pressing plates (6) are quickly reset when being reset; Two groups of early warning components, both groups of early warning components are drivingly connected to the locking component; The reset component comprises: A reset plate (17) and a reset spring (23), the inner wall of the main shaft (7) is provided with a sleeve, the main shaft (7) is provided with a rotating shaft (18) through the sleeve, the lower end of the rotating shaft (18) is fixedly connected to the top surface of the reset plate (17), the top surface of the reset plate (17) is fixedly connected to a reset disk (19), a side wall of the reset disk (19) is provided with a notch (20), the inner wall of the notch (20) is rotatably connected to a clamping plate (21), the surface of the clamping plate (21) is fixedly connected to a matching spring (22), and the end of the matching spring (22) is fixedly connected to the inner wall of the notch (20); The return spring (23) is fixedly connected to the inner wall of the housing (4), and the end of the return spring (23) is fixedly connected to the surface of the return plate (17); The locking component comprises: A main shaft (7), wherein the shaft wall of the main shaft (7) is rotatably connected to the inner wall of the shell (4), the shaft wall of the main shaft (7) is fixedly connected to a main board (8), the surface of the main board (8) is provided with two arc grooves (9), the groove walls of the two arc grooves (9) are slidably connected to a fixed shaft (10), the shaft walls of the two fixed shafts (10) are fixedly connected to a U-shaped block (11), the surfaces of the two U-shaped blocks (11) are fixedly connected to a connecting plate (12), the opposite sides of the two connecting plates (12) are fixedly connected to locking rods (13), the surface of the shell (4) is provided with two openings, the two locking rods (13) respectively pass through the two openings, and the two pressing plates (6) are fixedly connected to the ends of the two locking rods (13) respectively; A connecting disk (14) is fixedly connected to the end of the main shaft (7), a circular disk (15) is fixedly connected to the surface of the connecting disk (14), and a ratchet groove (16) is provided on the inner wall of the circular disk (15).

2. The detachable self-locking circlip nut assembly according to claim 1, characterized in that: The early warning component includes: Axle body 1 (24), the inner wall of the locking rod (13) is rotatably connected to the axial wall of the axle body 1 (24), the axial wall of the axle body 1 (24) is fixedly connected to two rods (25), the inner walls of the two rods (25) are commonly fixedly connected to axle body 2 (26), the end of the axle body 2 (26) is rotatably connected to the inner wall of the housing (4), the axial wall of the axle body 2 (26) is fixedly connected to a fan-shaped plate (27), the surface of the fan-shaped plate (27) is rotatably connected to axle body 3 (28), the axle body The shaft wall of the body three (28) is rotatably connected to a warning rod (29), the end of the warning rod (29) is hingedly connected to a warning plate (30), the inner wall of the shell (4) is provided with a warning cavity (31), the inner wall of the shell (4) is fixedly connected to a warning frame (32), the warning plate (30) is slidably connected to the inner wall of the warning frame (32), the surface of the warning plate (30) is fixedly connected to a warning spring (33), and the end of the warning spring (33) is fixedly connected to the inner wall of the warning cavity (31).

3. The detachable self-locking circlip nut assembly according to claim 1 or 2, characterized in that: A thumbwheel (34) is fixedly connected to the shaft wall of the main shaft (7), and a side wall of the thumbwheel (34) is provided with anti-slip patterns.

4. The detachable self-locking circlip nut assembly according to claim 3, characterized in that: The surfaces of the two pressure plates (6) are both provided with anti-skid pads, and the material of the two anti-skid pads is rubber.

5. The detachable self-locking circlip nut assembly according to claim 2, characterized in that: The position of the second shaft body (26) is adapted to the size of the locking rod (13), and the size of the second shaft body (26) is adapted to the size of the sector plate (27).

6. The detachable self-locking circlip nut assembly according to claim 5, characterized in that: The size of the housing (4) is adapted to the positions of the two mounting grooves (3), and the size of the two pressure plates (6) is adapted to the sizes of the two mounting blocks (2).

Citation Information

Patent Citations

  • Detachable self-locking clamp spring nut assembly

    CN117536970A

  • Automobile fastener easy to install

    CN220204272U