Anti-loosening nut
The screw nut with integrated limiting, auxiliary, and clamping devices addresses the weakness of single-prevention methods by enhancing frictional forces, ensuring reliable fastening without frequent maintenance and enhancing equipment durability.
Patent Information
- Application Number
- CN202422555059.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The existing nuts have weak anti-loosening ability, which leads to poor results when strong anti-loosening is required. It requires frequent replacement and maintenance, which affects work efficiency and may cause mechanical damage.
The combination design of limiting devices, auxiliary devices and snapping devices is adopted to increase the friction between the nut and bolt in various ways, including clamping devices, grinding patterns, friction plates, friction rings and snapping structures, and improve the anti-loosening ability.
It enhances the anti-loosening ability of the nut, reduces the frequency of replacement and maintenance of staff, improves work efficiency, and increases the operating stability and service life of the machinery.
Smart Images
Figure CN223105020U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fastening devices, and particularly relates to a nut that prevents loosening. Background Art
[0002] A nut is a common fastening device, usually used in conjunction with a bolt. For fastening devices, an important issue is how to achieve long-term fastening, that is, to prevent the nut from rotating relative to the bolt and prevent loosening.
[0003] At present, the principles of nut anti-loosening mainly include the following: one is an eccentric double-nut structure, in which the bolt passes through the two nuts at the same time and the two nuts are partially nested and rotatably connected, and at the same time, the through holes of the two nuts are eccentrically arranged. After the two nuts rotate relative to each other, the through holes of the two nuts are no longer aligned, so as to reduce the through diameters of the two nuts and firmly clamp the bolt; one is to set the contact surface between the nut and the gasket as an inclined surface. After the nut and the gasket rotate relative to each other, the inclined surfaces of the two still remain in contact to prevent the nut from continuing to rotate.
[0004] Traditional anti-loosening nuts only use one anti-loosening method, with weak anti-loosening ability and low reliability. They are not effective in occasions that require strong anti-loosening, and require workers to frequently replace and repair them, which increases the working time of workers and thus reduces work efficiency. If the repair time is too long, the nut will become loose again and cause damage to the machinery. Content of the Utility Model
[0005] In view of the deficiencies of the prior art, the utility model provides a nut that prevents loosening, which solves the problem that in the face of diverse fastening requirements, workers need to take various anti-loosening nuts, and using various anti-loosening nuts will result in incorrect use, thus increasing the use risk of the equipment. In the case of misusing the nut, workers need to replace the already installed nut, which further increases the working time of workers and reduces work efficiency.
[0006] To achieve the above object, the utility model is realized through the following technical solutions: A nut that prevents loosening, including a bolt, a limiting device is arranged on the outer wall of the bolt, and the limiting device includes: a nut, threadedly connected to the outer wall of the bolt; an adjusting device, arranged on the outer wall of the bolt; a clamping device, arranged on the outer wall of the bolt; wherein, the adjusting device pushes the clamping device to move inside the nut.
[0007] Preferably, the adjusting device includes: a sleeve, arranged on the outer wall of the nut; abrasive patterns, processed on the outer wall of the sleeve; wherein, the sleeve moves up and down along the thread on the clamping device by rotation, and the abrasive patterns can increase the friction between the fastening tool and the sleeve.
[0008] Preferably, the clamping device includes: two clamping plates, both of which are movably connected to the inside of the nut and are threadedly connected to one side of the sleeve; two friction plates, respectively installed on one side of the two clamping plates close to each other; wherein, when the adjusting device rotates, it will push the clamping plates and the friction plates to clamp towards the bolt, thereby increasing the friction between the clamping device and the bolt.
[0009] Preferably, an auxiliary device is provided on the top of the nut. The auxiliary device includes: a pressure ring installed on the top of the nut; two friction rings, both of which are installed on the top of the pressure ring; wherein, when the top end of the bolt passes through the friction ring, it deforms, thereby increasing the friction between the bolt and the friction ring.
[0010] Preferably, a snap device is provided below the nut. The snap device includes: a snap ring slidably clamped to the bottom of the nut; a friction pad installed on the bottom of the snap ring; wherein, the friction pad can increase the friction of the snap ring on the bolt.
[0011] Beneficial effects
[0012] The utility model provides a nut for preventing loosening, which has the following beneficial effects: through the cooperation of the limiting device, the auxiliary device and the snap device, the nut uses a variety of anti-loosening methods, has strong anti-loosening ability, does not require workers to frequently replace and repair, thereby reducing the working time of workers, improving work efficiency, and avoiding the situation that the nut becomes loose again due to not being replaced for a long time, which may damage the machine, thereby increasing the stability of the machine operation and improving the service life of the equipment. Description of the drawings
[0013] Figure 1 is a schematic structural diagram of the utility model;
[0014] Figure 2 is Figure 1 a cross-sectional view of
[0015] Figure 3 is Figure 2 a top view of the friction ring, the pressure ring and the sleeve in
[0016] Figure 4 is Figure 2 a schematic structural diagram of the grinding pattern, the sleeve and the clamping plate in
[0017] In the figure: 1, bolt; 2, limiting device; 21, clamping device; 211, clamping plate; 212, friction plate; 22, adjusting device; 221, grinding pattern; 222, sleeve; 23, nut; 3, snap device; 31, snap ring; 32, friction pad; 4, auxiliary device; 41, friction ring; 42, pressure ring. Detailed implementation manners
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] Through those skilled in the art, the components in this case are connected in sequence. For the specific connection and operation sequence, reference should be made to the following working principle. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process.
[0020] Traditional anti-loosening nuts only use one anti-loosening method, with weak anti-loosening ability and low reliability. They are not effective in occasions that require strong anti-loosening, and require staff to frequently replace and repair, which increases the working time of the staff, thus reducing work efficiency. If the repair time is too long, it will also cause the nut to loosen back, thereby damaging the machine.
[0021] In view of this, the present utility model provides an anti-loosening nut. Through the cooperation of a limiting device, an auxiliary device and a buckle device, it uses multiple anti-loosening methods, has strong anti-loosening ability, does not require staff to frequently replace and repair, thereby reducing the working time of the staff, thus improving work efficiency, and avoiding the situation of nut back-loosening and damage to the machine caused by not replacing the nut for a long time, thereby increasing the stability of the machine operation and improving the service life of the equipment.
[0022] Embodiment 1: As can be seen from Figure 1 , 2 , 3 and 4, an anti-loosening nut includes a bolt 1. A limiting device 2 is arranged on the outer wall of the bolt 1. The limiting device 2 includes: a nut 23 threadedly connected to the outer wall of the bolt 1; an adjusting device 22 arranged on the outer wall of the bolt 1; a clamping device 21 arranged on the outer wall of the bolt 1. Among them, the adjusting device 22 pushes the clamping device 21 to move inside the nut 23.
[0023] In the specific implementation process, it is particularly pointed out that when the staff rotates the adjusting device 22, the adjusting device 22 will push the clamping device 21 to move towards the bolt 1 and clamp, thereby increasing the friction between the clamping device and the bolt 1.
[0024] Specifically, when using this anti-loosening nut, when the staff needs to clamp a workpiece, first pass the bolt 1 through the workpiece, and then install the remaining device on the bolt 1. When the adjustment device 22 is rotated to push the clamping device 21 to move inside the nut 23, when the clamping device 21 moves to fit with the thread of the bolt 1 and can no longer move, the friction between the thread and the clamping device 21 can be increased, thereby achieving the purpose of anti-loosening.
[0025] Embodiment 2: From Figure 1 、 2 、3 and 4, it can be seen that the adjustment device 22 includes: a sleeve 222 provided on the outer wall of the nut 23; a grinding pattern 221 machined on the outer wall of the sleeve 222; wherein, the sleeve 222 moves up and down along the thread on the clamping device 21 by rotation, and the grinding pattern 221 can increase the friction between the fastening tool and the sleeve 222;
[0026] Furthermore, the clamping device 21 includes: two clamping plates 211, both of which are movably connected inside the nut 23 and are threadedly connected to one side of the sleeve 222; two friction plates 212, which are respectively installed on the sides of the two clamping plates 211 close to each other; wherein, when the adjustment device 22 rotates, it will push the clamping plates 211 and the friction plates 212 to clamp towards the bolt 1, thereby increasing the friction between the clamping device 21 and the bolt 1;
[0027] Furthermore, an auxiliary device 4 is provided on the top of the nut 23. The auxiliary device 4 includes: a pressure ring 42 installed on the top of the nut 23; two friction rings 41, both of which are installed on the top of the pressure ring 42; wherein, when the top end of the bolt 1 passes through the friction ring 41, it deforms, thereby increasing the friction between the bolt 1 and the friction ring 41;
[0028] Furthermore, a buckle device 3 is provided below the nut 23. The buckle device 3 includes: a snap ring 31 slidably clamped to the bottom of the nut 23; a friction pad 32 installed on the bottom of the snap ring 31; wherein, the friction pad 32 can increase the friction of the snap ring 31 on the bolt 1
[0029] In the specific implementation process, it is particularly worth noting that one side of the sleeve 222 is processed with threads, which can increase the friction between the sleeve 222 and the fastening tool. When the sleeve 222 rotates, the sleeve 222 will move up and down along the threads on the clamping plate 211, thereby pushing the clamping plate 211 and the friction plate 212 towards the bolt 1 to increase the friction between the bolt 1 and the friction plate 212. The material of the friction plate is not limited as long as it meets the usage requirements. The pressure ring 42 fixes the friction ring 41 on the top of the main body 23. When the top end of the bolt 1 passes through the friction ring 41, the friction ring 41 will deform, thereby increasing the friction with the bolt 1. The snap ring 31 is snap-connected to the bottom of the main body 23, and the friction pad 32 can increase the friction of the snap ring 31 on the bolt 1. The material of the friction pad 32 is not limited as long as it meets the usage requirements;
[0030] Specifically, on the basis of the above-mentioned Embodiment 1, when the staff uses the anti-loosening nut, they need to first place the bolt 1 in the desired hole position. After placing the snap-fastening device 3 on the nut 1, install the nut, and then rotate the main body 23. When the main body 23 reaches the top of the snap ring 31, the snap ring 31 is snap-connected to the bottom of the main body 23, and the friction pad 32 can increase the friction of the snap ring 31 on the bolt 1, so that the main body 23 cannot loosen. During the rotation, the anti-loosening device 4 will move downward along the threads of the bolt 1. When the top end of the bolt 1 passes through the friction ring 41, the friction ring 41 will deform, so that the friction ring 41 will increase the friction with the bolt 1. Then rotate the sleeve 222, and the sleeve 222 will push the clamping device 21 downward along the threads, so that the clamping device 21 fits with the threads of the bolt 1, and the friction between the threads and the clamping device 21 can be increased.
[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "including a..." does not exclude the presence of additional identical elements in the process, method, article or device including the element.
[0032] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0033] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A nut for preventing loosening, comprising a bolt (1), characterized in that: A limiting device (2) is provided on the outer wall of the bolt (1), and the limiting device (2) includes: A nut (23) threadedly connected to the outer wall of the bolt (1); An adjusting device (22) provided on the outer wall of the bolt (1); A clamping device (21) provided on the outer wall of the bolt (1); Wherein, the adjusting device (22) pushes the clamping device (21) to move inside the nut (23).
2. The anti-loosening nut according to claim 1, characterized in that: The adjusting device (22) includes: A sleeve (222) provided on the outer wall of the nut (23); Thread patterns (221) machined on the outer wall of the sleeve (222); Wherein, the sleeve (222) moves up and down along the threads on the clamping device (21) by rotation, and the thread patterns (221) can increase the friction between the fastening tool and the sleeve (222).
3. The anti-loosening nut according to claim 2, characterized in that: The clamping device (21) includes: Two clamping plates (211) both movably connected inside the nut (23) and threadedly connected to one side of the sleeve (222); Two friction plates (212) respectively installed on the sides of the two clamping plates (211) close to each other; Wherein, when the adjusting device (22) rotates, it will push the clamping plates (211) and the friction plates (212) to clamp towards the bolt (1), thereby increasing the friction between the clamping device (21) and the bolt (1).
4. A loosening-proof nut according to claim 1, characterized in that: An auxiliary device (4) is provided on the top of the nut (23), and the auxiliary device (4) includes: A pressure ring (42) installed on the top of the nut (23); Two friction rings (41) both installed on the top of the pressure ring (42); Wherein, when the top end of the bolt (1) passes through the friction ring (41), it deforms, thereby increasing the friction between the bolt (1) and the friction ring (41).
5. A loosening-proof nut according to claim 1, characterized in that: A buckle device (3) is provided below the nut (23), and the buckle device (3) includes: A snap ring (31) slidably clamped to the bottom of the nut (23); A friction pad (32) installed on the bottom of the snap ring (31); Wherein, the friction pad (32) can increase the friction of the snap ring (31) on the bolt (1).