Lock nut based on gasket structure

Abstract

The utility model relates to the technical field of fasteners, and provides a locknut based on a gasket structure, which comprises a screw rod, the outer surface of the screw rod is provided with a thread part and a first clamping groove, the first clamping groove is positioned on the outer wall of the screw rod and is parallel to the axial direction of the screw rod, a nut thread is arranged on the screw rod, the screw rod penetrates through a first gasket, and the first gasket is provided with a first clamping part. And the first clamping part is clamped in the first clamping groove. By means of the technical scheme, the problem that in the prior art, the nut fastening effect is poor in the vibration environment is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, and in particular to a locking nut based on a gasket structure. Background Art

[0002] In railways and other fields that require extremely high fastening stability, loosening of nuts may cause serious safety accidents. Existing anti-loosening nuts may still loosen under long-term vibration or complex working conditions, which cannot fully meet actual needs and cannot completely and effectively prevent nuts from loosening, which may cause serious safety accidents. Utility Model Content

[0003] The utility model provides an anti-loosening nut based on a gasket structure, which solves the problem of poor nut fastening effect under a vibration environment in the related technology.

[0004] The technical solution of the utility model is as follows:

[0005] A locking nut based on a gasket structure, comprising

[0006] A screw, wherein the outer surface of the screw has a threaded portion and a first groove, wherein the first groove is located on the outer wall of the screw and is parallel to the axial direction of the screw,

[0007] A nut, wherein the nut thread is arranged on the screw rod,

[0008] A first gasket, the screw rod passes through the first gasket, the first gasket has a first clamping portion, and the first clamping portion is clamped in the first clamping groove.

[0009] As a further technical solution, the first card portion and the first card slot form one group or several groups.

[0010] As a further technical solution, the first slot has an entrance, and the entrance is located at the end of the screw.

[0011] As a further technical solution, the first gasket has a second clamping portion on a side close to the nut, the nut has a second clamping groove on a side close to the first gasket, and the second clamping portion is clamped in the second clamping groove.

[0012] As a further technical solution, the second clamping portion is of an inclined surface type and is arranged in a plurality of circles, and the second clamping groove is an oblique groove and is arranged in a plurality of circles.

[0013] As a further technical solution, the first gasket is a spring, and further includes

[0014] The second gasket is located on one side of the first gasket and has a plurality of third card slots arranged circumferentially. The first gasket has a third card portion on one side close to the second gasket, and the third card portion is carded in the third card slot.

[0015] As a further technical solution, it also includes

[0016] An elastic bar, the first gasket is pressed on the elastic bar, and the screw rod passes through the elastic bar.

[0017] As a further technical solution, the elastic bar has a first supporting portion, a second supporting portion, a third supporting portion, a fourth supporting portion and a fifth supporting portion, and also has a first connecting portion, a second connecting portion, a third connecting portion and a fourth connecting portion, the first connecting portion is used for connecting the first supporting portion and the second supporting portion, the second connecting portion is used for connecting the second supporting portion and the third supporting portion, the third connecting portion is used for connecting the third supporting portion and the fourth supporting portion, and the fourth connecting portion is used for connecting the fourth supporting portion and the fifth supporting portion.

[0018] As a further technical solution, the first gasket has a first limiting groove and a second limiting groove, the first limiting groove and the second limiting groove are used to accommodate the second connecting portion and the third connecting portion, the first limiting groove and the second limiting groove

[0019] Used to limit the movement and rotation of the elastic bar.

[0020] As a further technical solution, the first gasket has a notch, and has a first stopper and a second stopper at both ends respectively, the first stopper abuts against the side wall of the second connecting portion, and the second stopper abuts against the third connecting portion.

[0021] The working principle and beneficial effects of the utility model are:

[0022] The utility model designs a screw rod, which includes a threaded portion, which is a basic component of the screw rod and is used to cooperate with the internal thread of the nut to achieve a tightening function. The first clamping groove is located on the outer surface of the screw rod and is parallel to the axial direction of the screw rod. The first clamping groove provides a physical interface for the subsequent anti-loosening mechanism. The nut has a thread matching the screw thread inside, and the nut and the screw rod are meshed with each other by rotating the nut to achieve a tightening or loosening action. A first gasket is added between the nut and the object to be tightened, and a first clamping portion is designed on the first gasket, and its shape matches the first clamping groove. Before installing the nut, the first clamping portion will be embedded in the first clamping groove to form an anti-loosening locking mechanism. During installation, the first gasket is installed to the first clamping groove position on the screw rod, and then the nut is installed on the screw rod. When the first clamping portion is clamped into the first clamping groove, due to the mutual engagement of the clamping groove and the clamping portion, a mechanical obstacle is formed to prevent the nut from rotating in the reverse direction when it is in a tightened state with the bolt. Even if the external environment generates vibration or load changes, the force that attempts to loosen the nut will be resisted by the locking mechanism of the first clamping part and the first clamping groove, thereby effectively preventing the nut from accidentally loosening. Through a simple and effective mechanical interlocking method, the reliability of the bolt connection is improved, which is particularly suitable for occasions that need to withstand vibration or dynamic loads for a long time, such as railways and heavy equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0024] Figure 1 This is a schematic diagram of the structure of Example 1 of the present utility model;

[0025] Figure 2 It is a structural schematic diagram of the nut in the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of Example 2 of the present utility model;

[0027] Figure 4 This is a schematic diagram of the structure of Example 3 of the present utility model;

[0028] Figure 5 This is a schematic structural diagram of the first gasket of Example 3 of the utility model;

[0029] Figure 6 It is a schematic diagram of the spring bar of Example 3 in the structure of the utility model;

[0030] Figure 7 This is a schematic diagram of the structure of Example 4 of the present utility model.

[0031] In the figure: screw-1, first clamping groove-101, entrance-103, nut-2, second clamping groove-201, first gasket-3, first clamping part-301, second clamping part-302, third clamping part-303, first limiting groove-304, second limiting groove-305, notch-306, first stop part-307, second stop part-308, second gasket-4, third clamping groove-401, elastic bar-5, first support part-501, second support part-502, third support part-503, fourth support part-504, fifth support part-505, first connection part-506, second connection part-507, third connection part-508, fourth connection part-509. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0033] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0034] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0035] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0036] Example 1

[0037] Reference Figure 1~Figure 2, which is the first embodiment of the utility model, proposes a locking nut based on a gasket structure, including a screw 1, the outer surface of the screw 1 has a threaded portion and a first clamping groove 101, the first clamping groove 101 is located on the outer wall of the screw 1 and is parallel to the axial direction of the screw 1, the nut 2 is threadedly arranged on the screw 1, the screw 1 passes through the first gasket 3, the first gasket 3 has a first clamping portion 301, and the first clamping portion 301 is clamped in the first clamping groove 101.

[0038] In this embodiment, a screw 1 is designed, and the screw 1 includes a threaded portion, which is a basic component of the screw 1 and is used to cooperate with the internal thread of the nut 2 to achieve a tightening function. The first clamping groove 101 is located on the outer surface of the screw 1 and is axially parallel to the screw 1. The first clamping groove 101 provides a physical interface for the subsequent anti-loosening mechanism. The nut 2 has a thread matching the thread of the screw 1 inside, and the nut 2 is rotated to engage with the screw 1 to achieve the action of tightening or loosening. A first gasket 3 is added between the nut 2 and the object to be tightened, and a first clamping portion 301 is designed on the first gasket 3, and its shape matches the first clamping groove 101. Before installing the nut 2, the first clamping portion 301 will be embedded in the first clamping groove 101 to form an anti-loosening locking mechanism. During installation, the first gasket 3 is installed to the first slot 101 on the screw 1 and then the nut 2 is installed on the screw 1. When the first clamping part 301 is inserted into the first slot 101, the mutual engagement of the clamping part and the clamping part forms a mechanical barrier to prevent the nut 2 from rotating in the reverse direction when it is in a tightened state with the bolt. Even if the external environment generates vibration or load changes, the force that attempts to loosen the nut 2 will be resisted by the locking mechanism of the first clamping part 301 and the first slot 101, thereby effectively preventing the nut 2 from accidentally loosening. The reliability of the bolt connection is improved through a simple and effective mechanical interlocking method, which is particularly suitable for occasions that need to withstand vibration or dynamic loads for a long time, such as railways and heavy equipment.

[0039] Furthermore, the first clamping portion 301 and the first clamping slot 101 form one group or several groups.

[0040] In this embodiment, the first clamping part 301 and the first clamping groove 101 are arranged in several groups, and multiple groups of first clamping grooves 101 are arranged at different positions of the screw rod 1, and each group of clamping grooves corresponds to the corresponding number of first clamping parts 301 on the first gasket 3. By arranging multiple groups of clamping grooves and clamping parts, even in an extreme vibration environment, even if the clamping grooves and clamping parts at a certain place fail due to wear or other reasons, the locking mechanisms at other positions can continue to play a role, keep the fastening state of the nut 2, and enhance the anti-loosening performance. The multi-group design enables this anti-loosening nut to adapt to more types of application scenarios, especially for heavy machinery, vehicles, building structures, etc. that require highly reliable fixation, and can provide a higher level of safety and stability. According to different use conditions and bolt specifications, more flexible and efficient tightening can be achieved by adjusting the number, position and size of the clamping grooves and clamping parts. By adopting one or more groups of the first clamping part 301 and the first clamping groove 101 design in the anti-loosening nut, not only the stability and reliability of the anti-loosening effect are improved, but also the safety and durability of the anti-loosening nut are improved.

[0041] Furthermore, the first slot 101 has an entry opening 103 , and the entry opening 103 is located at the end of the screw rod 1 .

[0042] In this embodiment, it is pointed out that the entrance 103 of the first slot 101 is located at the end of the screw 1, which means that during assembly, the clamping portion of the first gasket 3 can be gradually slid into the slot from the end of the screw 1 until it reaches a predetermined locking position. This design improves the convenience of the assembly process. The technician can easily slide the first gasket 3 along the axial direction of the screw 1 until the clamping portion is accurately embedded in the slot, without the need for complex alignment operations, simplifying the installation steps and saving time. Setting the entrance 103 at the end also means that once the clamping portion of the first gasket 3 is fully embedded in the slot, its exit path is blocked, so that the nut 2 will not loosen easily. This design enhances the anti-loosening effect and ensures the long-term stability of the connection. The design of the entrance 103 at the end is also convenient for later inspection and maintenance. The technician can intuitively observe whether the clamping portion is correctly in place, or disassemble the nut 2 for inspection or replacement of the gasket when necessary, which improves the maintainability of the system. By adding the entry port 103 at the end of the screw rod 1 to the design of the first slot 101, the assembly process of the anti-loosening nut is optimized, the assembly efficiency is improved, the anti-loosening performance is enhanced, and the long-term safety and reliability of the connection is ensured.

[0043] Furthermore, a side of the first gasket 3 close to the nut 2 has a second clamping portion 302 , and a side of the nut 2 close to the first gasket 3 has a second clamping groove 201 , and the second clamping portion 302 is clamped in the second clamping groove 201 .

[0044] In this embodiment, in addition to the original anti-loosening mechanism of the first slot 101 and the first clamping part 301, a second clamping part 302 is newly added on the side of the first gasket 3 close to the nut 2, and a second slot 201 corresponding thereto is designed on the side of the nut 2 close to the first gasket 3. This double-slot design further enhances the fixing effect of the nut 2. The combination of the first slot 101 and the second slot 201, and their respective cooperation with the second clamping part 302 between the first gasket 3 and the nut 2, form a double locking mechanism. This not only improves the anti-loosening performance, but also resists vibration and external forces in different directions, ensuring that the nut 2 can remain in a tightened state under dynamic loads or after long-term use. The arrangement of the second slot 201 and the second clamping part 302 enables the nut 2 to be tightened. In addition to relying on the friction of the thread, the rotation of the nut 2 is also limited by physical blocking, effectively avoiding the loosening of the nut 2 caused by vibration, temperature change or external force impact, and is particularly suitable for applications requiring high stability and safety, such as precision equipment, bridges, rail vehicles, etc. This design also facilitates maintenance and inspection. By checking whether the second clamping portion 302 is correctly embedded in the second clamping slot 201, it is possible to quickly determine whether the nut 2 is in a correctly tightened state, which is convenient for daily maintenance and regular inspection. By adding the second clamping portion 302 and the second clamping slot 201, not only the anti-loosening effect is enhanced, but also the stability and safety of the overall structure are improved.

[0045] Furthermore, the second clamping portion 302 is a sloped surface and is arranged in a plurality of circles, and the second clamping groove 201 is an oblique groove and is arranged in a plurality of circles.

[0046] In this embodiment, the second clamping part 302 adopts a bevel structure. This design can form greater friction and mechanical bite force as the clamping part contacts the slot during the tightening process of the nut 2. The bevel design allows the clamping part to be more tightly embedded in the slot when subjected to external force, thereby improving the anti-loosening effect. The second clamping part 302 and the second slot 201 are both designed as multiple and arranged along the circumferential direction of the nut 2 and the gasket. This annular layout ensures that under the action of external force at any angle, at least a part of the clamping part is tightly combined with the slot to form a full range of anti-loosening protection, which significantly enhances the stability and vibration resistance of the overall structure. The second slot 201 is designed as an oblique slot, which matches the oblique second clamping part 302. This matching method can better lock when subjected to force, and can effectively prevent the nut 2 from loosening even under dynamic load. The design of the oblique slot also takes into account the convenience of assembly, so that the clamping part can slide into the slot more smoothly, and it is not easy to fall out by itself after tightening. The design of the inclined and circumferentially arranged second clamping portion 302 and the oblique groove not only improves the anti-loosening effect from a mechanical point of view, but also takes into account the convenience of assembly and the reliability of use. It is a targeted design for high-vibration and high-load application environments.

[0047] Example 2

[0048] Reference Figure 3 , is the second embodiment of the utility model, which is different from the first embodiment in that: compared with the second embodiment, further, the first gasket 3 is a spring sheet, and also includes a second gasket 4, the second gasket 4 is located on one side of the first gasket 3, and has a plurality of circumferentially arranged third card grooves 401, and the first gasket 3 has a third card portion 303 on one side close to the second gasket 4, and the third card portion 303 is stuck in the third card groove 401.

[0049] In this embodiment, a second gasket 4 is added to one side of the first gasket 3. A plurality of circumferentially arranged third card slots 401 are provided on the second gasket 4, and a third card portion 303 corresponding thereto is designed on the side of the first gasket 3 close to the second gasket 4. At this time, the second card portion 302 and the third card portion 303 are both one, and the mutual engagement of the card portion and the card slot forms another layer of anti-loosening protection, which enhances the stability of the nut 2 when subjected to various external forces, especially the force of resisting rotation, thereby ensuring the durable and stable connection. The anti-loosening nut design includes at least three layers of anti-loosening structures, the first card slot 101 and the first card portion 301, the second card slot 201 and the second card portion 302, and the third card slot 401 and the third card portion 303 mentioned now. Such a multiple insurance strategy greatly improves the reliability of the system, and is particularly suitable for those application scenarios that require extremely high fastening safety. The first gasket 3 is designed as a spring, which means that it can provide a certain elastic pressure. After the bolt is tightened, this pressure can further compress the components and increase the bite strength between the clamping part and the clamping slot. At the same time, when dealing with vibration or thermal expansion and contraction, the elasticity of the spring can also absorb certain stress changes and reduce the loosening of the bolt connection. By adding the anti-loosening design of the second gasket 4 and the third clamping slot 401 and the third clamping part 303, the anti-loosening nut can more effectively cope with various harsh application environments and ensure the long-term stability and safety of the connection.

[0050] Example 3

[0051] Reference Figure 4~Figure 6 , which is the third embodiment of the utility model. This embodiment is different from the second embodiment in that, compared with the second embodiment, it further includes an elastic bar 5, the first gasket 3 is pressed on the elastic bar 5, and the elastic bar 5 is penetrated by the screw 1.

[0052] In this embodiment, the second gasket 4 is replaced by an elastic bar 5, which is designed as an elastic element between the first gasket 3 and the screw 1. The purpose of this design is to use the elastic properties of the elastic bar 5 to enhance the tightness and adaptability of the entire connection system. The presence of the elastic bar 5 can provide continuous pressure to ensure that the clamping portion on the first gasket 3 is in close contact with the clamping groove on the screw 1, and a good locking state can be maintained even when subjected to vibration or external force. The first gasket 3 is pressed on the elastic bar 5, which means that the elastic bar 5 not only carries the first gasket 3, but also can compensate for the slight displacement during the assembly process or long-term use through its own elastic deformation, thereby further preventing the nut 2 from loosening. This design can effectively absorb mechanical vibration and reduce the risk of loosening caused by vibration. The design of the screw 1 running through the elastic bar 5 allows the entire assembly to be tightened as a whole during installation, and the elastic deformation of the elastic bar 5 can occur as the nut 2 is tightened, thereby generating additional preload between the nut 2 and the connected part. This mechanism helps to improve the stability of the connection, especially in an environment with dynamic load changes. By adding the spring bar 5 component, the anti-loosening nut design not only strengthens the anti-loosening mechanism, but also improves the adaptability and durability of the system by introducing stronger elastic elements. It is particularly suitable for applications requiring frequent vibrations, shocks or large temperature changes, ensuring the safety and reliability of the connection.

[0053] Furthermore, the elastic bar 5 has a first supporting portion 501, a second supporting portion 502, a third supporting portion 503, a fourth supporting portion 504 and a fifth supporting portion 505, and also has a first connecting portion 506, a second connecting portion 507, a third connecting portion 508 and a fourth connecting portion 509. The first connecting portion 506 is used for connecting the first supporting portion 501 and the second supporting portion 502, the second connecting portion 507 is used for connecting the second supporting portion 502 and the third supporting portion 503, the third connecting portion 508 is used for connecting the third supporting portion 503 and the fourth supporting portion 504, and the fourth connecting portion 509 is used for connecting the fourth supporting portion 504 and the fifth supporting portion 505.

[0054] In this embodiment, the spring bar 5 is subdivided into five supporting parts from the first to the fifth. This segmented design may be to distribute and optimize the use of elasticity in different parts to ensure that the spring bar 5 can provide the necessary supporting force and restoring force in a balanced manner under different directions and forces. Each supporting part can be designed with different cross-sectional shapes, thicknesses or materials according to its location and functional requirements to meet specific mechanical requirements. The four connecting parts from the first to the fourth are responsible for connecting the five supporting parts in sequence to form a continuous and elastic overall structure. These connecting parts are parts with better flexibility. The design must ensure a firm connection between the supporting parts and allow necessary elastic deformation to adapt to various stress changes that may occur in the bolt connection. This segmented connection design helps to disperse stress concentration and improve the service life and anti-loosening performance of the spring bar 5. Compared with a single-structure spring bar 5, this design of a spring bar 5 combining multiple supporting parts and connecting parts can provide more precise and flexible elastic support, especially when dealing with complex dynamic loads or long-term fatigue tests. The multi-connecting part design can provide the anti-loosening nut with stronger strain capacity. By subdividing the spring bar 5 into multiple supporting parts and connecting parts, the structural strength and elastic adaptability of the spring bar 5 itself are enhanced, and the stability and reliability of the entire anti-loosening nut system are also improved.

[0055] Furthermore, the first gasket 3 has a first limiting groove 304 and a second limiting groove 305, which are used to accommodate the second connecting portion 507 and the third connecting portion 508, and are used to limit the movement and rotation of the elastic bar 5.

[0056] In this embodiment, the first gasket 3 is designed to include two limiting grooves, namely the first limiting groove 304 and the second limiting groove 305, which are used to accommodate the second connection part 507 and the third connection part 508 on the spring bar 5 respectively. This design limits the movement of the spring bar 5 in the direction perpendicular to the axis of the screw 1 through the physical structure, ensuring that the spring bar 5 maintains a predetermined position after assembly and does not cause unnecessary displacement due to external force or vibration. In addition to limiting the movement of the spring bar 5, the limiting groove also plays a role in limiting its rotation. This means that even under the influence of external torque, the spring bar 5 will not rotate, thereby ensuring that the supporting parts and connecting parts of the spring bar 5 are always aligned with their designed positions, maintaining the overall stability and anti-loosening effect of the anti-loosening nut system. In this way, the mutual constraint between the first gasket 3 and the spring bar 5 not only improves the fastening reliability of the entire anti-loosening system, but also effectively avoids the reduction of anti-loosening performance caused by the change of the position of the spring bar 5. The design details of the limiting groove reflect the careful consideration of various complex working conditions that may occur in dynamic applications, ensuring that the nut 2 can maintain a good fastening state in various environments and working conditions. By designing a limiting groove on the first gasket 3 to accurately adapt and constrain the key connection position of the elastic bar 5, the anti-loosening nut further enhances the stability of the structure and the reliability of the anti-loosening mechanism.

[0057] Example 4

[0058] Reference Figure 7 , which is the fourth embodiment of the utility model. This embodiment is different from the third embodiment in that: compared with the third embodiment, further, the first gasket 3 has a notch 306, and has a first stopper 307 and a second stopper 308 at both ends, the first stopper 307 abuts against the side wall of the second connecting portion 507, and the second stopper 308 abuts against the third connecting portion 508.

[0059] In this embodiment, a notch 306 is designed on the first gasket 3. This design is to adapt to the specific structure of the spring bar 5. The first stopper 307 and the second stopper 308 are respectively provided at both ends of the notch 306 of the first gasket 3, which are respectively in contact with the side wall of the second connecting portion 507 and the third connecting portion 508 of the spring bar 5. This design not only limits the position of the first gasket 3 on the spring bar 5 through direct physical contact, but also further enhances the stability between the two to prevent relative sliding under vibration or external force. Through such a design, the first gasket 3 not only serves as an intermediary between the spring bar 5 and the nut 2, but also enhances the rigidity and anti-rotation ability of the overall structure through the close fit between the stopper and the spring bar 5, thereby effectively preventing the nut 2 from loosening under dynamic load. The setting of the stopper increases additional friction resistance to ensure that the threaded connection can remain tight even under long-term use or extreme working conditions. The ingenious design of the notch 306 and the stopper may also take into account the ease of assembly. Through the guiding and positioning functions, the installer can complete the assembly more quickly and accurately, and it is also convenient for inspection and maintenance to ensure the structural stability of the lock nut. By adding the notch 306 and the stopper to the first gasket 3, the assembly accuracy and fastening reliability of the lock nut are improved, and the convenience of the assembly process and the ease of maintenance are optimized.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A locking nut based on a gasket structure, characterized in that: include A screw rod (1), wherein the outer surface of the screw rod (1) comprises a threaded portion and a first clamping groove (101), wherein the first clamping groove (101) is located on the outer wall of the screw rod (1) and is parallel to the axial direction of the screw rod (1). a nut (2), wherein the nut (2) is threadably disposed on the screw rod (1), A first gasket (3), the screw rod (1) passes through the first gasket (3), the first gasket (3) has a first clamping portion (301), and the first clamping portion (301) is clamped in the first clamping groove (101).

2. The anti-loosening nut based on the gasket structure according to claim 1 is characterized in that: The first clamping portion (301) and the first clamping slot (101) form one group or several groups.

3. The anti-loosening nut based on the gasket structure according to claim 1, characterized in that: The first clamping groove (101) has an entrance opening (103), and the entrance opening (103) is located at the end of the screw rod (1).

4. The anti-loosening nut based on the gasket structure according to claim 1, characterized in that: The first gasket (3) has a second clamping portion (302) on one side close to the nut (2), the nut (2) has a second clamping groove (201) on one side close to the first gasket (3), and the second clamping portion (302) is clamped in the second clamping groove (201).

5. The anti-loosening nut based on the gasket structure according to claim 4 is characterized in that: The second clamping portion (302) is of an inclined surface type and is arranged in a plurality of circles, and the second clamping groove (201) is of an inclined groove and is arranged in a plurality of circles.

6. The anti-loosening nut based on the washer structure according to claim 1, characterized in that: The first gasket (3) is a spring, and also includes A second gasket (4), the second gasket (4) being located on one side of the first gasket (3) and having a plurality of third clamping grooves (401) arranged in a circumference, and a third clamping portion (303) being clamped in the third clamping groove (401) on one side of the first gasket (3) close to the second gasket (4).

7. The anti-loosening nut based on the washer structure according to claim 1, characterized in that: Also includes An elastic bar (5), wherein the first gasket (3) is pressed onto the elastic bar (5), and the screw rod (1) passes through the elastic bar (5).

8. The anti-loosening nut based on the washer structure according to claim 7, characterized in that: The elastic bar (5) comprises a first supporting portion (501), a second supporting portion (502), a third supporting portion (503), a fourth supporting portion (504) and a fifth supporting portion (505), and further comprises a first connecting portion (506), a second connecting portion (507), a third connecting portion (508) and a fourth connecting portion (509), wherein the first connecting portion (506) is used for connecting the first supporting portion (501) and the second supporting portion (502), the second connecting portion (507) is used for connecting the second supporting portion (502) and the third supporting portion (503), the third connecting portion (508) is used for connecting the third supporting portion (503) and the fourth supporting portion (504), and the fourth connecting portion (509) is used for connecting the fourth supporting portion (504) and the fifth supporting portion (505).

9. The anti-loosening nut based on the washer structure according to claim 8, characterized in that: The first gasket (3) has a first limiting groove (304) and a second limiting groove (305), the first limiting groove (304) and the second limiting groove (305) are used to accommodate the second connecting portion (507) and the third connecting portion (508), and the first limiting groove (304) and the second limiting groove (305) are used to limit the movement and rotation of the elastic bar (5).

10. The anti-loosening nut based on the washer structure according to claim 9, characterized in that: The first gasket (3) has a notch (306), and has a first stopper (307) and a second stopper (308) at both ends respectively, the first stopper (307) abuts against a side wall of the second connecting portion (507), and the second stopper (308) abuts against the third connecting portion (508).

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