Multi-stage elastic piece buffering and damping nut

Abstract

The utility model relates to the technical field of damping nuts, and discloses a multistage elastic piece buffering and damping nut which comprises a nut body, a plurality of fixing plates are fixedly connected to the top of the nut body, a plurality of screws are in threaded connection with the tops of the fixing plates, a plurality of threaded holes are formed in the top of the nut body, and a plurality of elastic pieces are arranged in the threaded holes. The bottom ends of the multiple screws penetrate through the tops of the fixing plates and are in threaded connection with the threaded holes, the tops of the multiple fixing plates are fixedly connected with damping pipes, the top of the nut is fixedly connected with multiple fixing sleeves, and the bottoms of the inner sides of the multiple fixing sleeves are fixedly connected with springs. The fixing plate is screwed and fixed with the threaded holes in the tops of the nuts through the screws, the damping pipe is convenient to assemble and disassemble, the top plate is stressed to downwards extrude the sliding columns, the sliding columns extrude the springs, preliminary buffering is achieved, the top plate descends to extrude the damping pipe, and energy is absorbed and dispersed, so that the damping pipe is rapidly disassembled, and working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of shock-absorbing nut technology, and in particular to a multi-stage spring-loaded shock-absorbing nut. Background Technology

[0002] Multi-stage spring-loaded damping nuts are nuts with special structures and functions, used in connection parts that require vibration reduction, buffering, and anti-loosening. When the nut is subjected to vibration, impact, or dynamic load, the elastic structure undergoes elastic deformation, converting mechanical energy into elastic potential energy, thereby reducing the impact of vibration and impact on the connection parts. Through the sequential action of the multi-stage elastic structure, it can play a good buffering and damping role under different vibration frequencies and amplitudes, protecting the connected components from damage.

[0003] Under prolonged vibration, elastic structures undergo continuous elastic deformation, making them prone to fatigue. This is especially true for elastic structures in different locations, where varying stress levels and deformation degrees increase the likelihood of fatigue failure. Once fatigue cracks or even fractures occur, the cushioning and shock absorption effect diminishes, impacting the overall stability and reliability of the structure. Current technologies address this by installing auxiliary supports at appropriate locations within the elastic structure, using protrusions or ribs inside the nut. These supports can distribute some of the force when the elastic structure deforms, reducing its burden and fatigue damage. They can also limit the deformation range, preventing excessive deformation and fatigue failure. However, even with prolonged use, the elastic structure's elasticity will eventually decrease, requiring the removal of numerous parts for replacement, thus reducing its efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multi-stage spring buffer shock-absorbing nut, which aims to improve the problem that the elastic structure in the prior art still suffers from a decline in elasticity due to long-term use, and requires the removal of too many parts for replacement, resulting in reduced working efficiency.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a multi-stage spring-loaded buffer shock-absorbing nut, including a nut, the top of which is fixedly connected to multiple fixing plates, the top of which is threaded with multiple screws, the top of which has multiple threaded holes, the bottom ends of which penetrate the top of which are threaded through the fixing plates and threadedly connected to the threaded holes, the top of which is fixedly connected to a shock-absorbing tube, the top of which is fixedly connected to multiple fixing sleeves, the bottom of which is fixedly connected to the inner side of which are springs, the top of which is fixedly connected to a sliding column, the top of which is fixedly connected to the same top plate, and the interior of which is provided with a sliding mechanism to reduce the friction of the sliding column.

[0006] As a further description of the above technical solution:

[0007] The sliding mechanism includes multiple rotating balls, the outer walls of which are slidably connected to the outer walls of the sliding columns. Multiple sliding grooves are formed around the inner perimeter of the multiple fixed sleeves. Semicircular grooves are formed around the outer perimeter of the multiple sliding columns. The outer walls of the multiple rotating balls are slidably connected to the interior of the semicircular grooves. Baffles are fixedly connected to the top of the multiple sliding grooves and the bottom of the semicircular grooves.

[0008] As a further description of the above technical solution:

[0009] Multiple anti-slip tubes are fixedly connected to the top of the top plate, and the multiple anti-slip tubes are arranged at equal intervals.

[0010] As a further description of the above technical solution:

[0011] Each of the screws has a washer fixedly connected to the middle of its outer wall, and each of the washer has a smooth design.

[0012] As a further description of the above technical solution:

[0013] Each of the multiple fixing sleeves has a fixing ring fixedly connected to its outer wall, and each of the multiple fixing rings has a reflective sticker fixedly connected to its outer wall.

[0014] As a further description of the above technical solution:

[0015] The bottoms of the multiple fixing plates are equidistantly fixed to the top of the nuts, and the bottoms of the multiple shock-absorbing tubes are equidistantly fixed to the top of the fixing plates.

[0016] As a further description of the above technical solution:

[0017] The outer walls of the plurality of screws match the interior of the threaded holes, and the outer diameters of the plurality of sliding pins are all smaller than the inner diameter of the fixed sleeve.

[0018] As a further description of the above technical solution:

[0019] The size of each of the sliding grooves is matched with the size of the semicircular groove, and the diameter of each of the rotating beads is matched with the diameter of the hole formed between the sliding groove and the semicircular groove.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the fixing plate is tightened and fixed by screws and nuts with threaded holes on the top, which facilitates the installation and removal of the shock absorber tube. When external pressure comes, the top plate is forced downward to press the sliding column, the sliding column presses the spring, and the spring deformation converts the pressure energy into elastic potential energy, achieving initial buffering. The descent of the top plate will also press the shock absorber tube, absorbing and dispersing energy, greatly reducing the impact of vibration, thereby realizing the quick disassembly of the shock absorber tube and improving work efficiency.

[0022] 2. In this utility model, when external pressure is applied to push the sliding column to move up and down, the rotating ball will rotate in the space formed by the sliding groove and the semi-circular groove. The original sliding friction between the sliding column and the fixed sleeve is changed to rolling friction due to the intervention of the rotating ball. The sliding column moves more smoothly and energy loss is reduced. The top of the sliding groove and the bottom of the semi-circular groove are equipped with baffles to prevent the rotating ball from shaking and falling, thereby reducing friction. Attached Figure Description

[0023] Figure 1 This is a perspective view of the multi-stage spring-loaded buffer and shock-absorbing nut proposed in this utility model;

[0024] Figure 2 This is a front view of the multi-stage spring-loaded buffer and shock-absorbing nut proposed in this utility model;

[0025] Figure 3 This is an exploded view of the screw of the multi-stage spring-loaded shock-absorbing nut proposed in this utility model;

[0026] Figure 4 This is an exploded view of the spring in the multi-stage spring-loaded buffer and shock-absorbing nut proposed in this utility model;

[0027] Figure 5 This is a split view of the ball bearing of the multi-stage spring buffer shock-absorbing nut proposed in this utility model.

[0028] Legend:

[0029] 1. Nut; 2. Sliding mechanism; 201. Sliding groove; 202. Semicircular groove; 203. Rotating ball; 204. Baffle; 3. Fixing plate; 4. Screw; 5. Threaded hole; 6. Shock-absorbing tube; 7. Fixing sleeve; 8. Spring; 9. Sliding column; 10. Top plate; 11. Anti-slip tube; 12. Washer; 13. Fixing ring; 14. Reflective sticker. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a multi-stage spring-loaded buffer shock-absorbing nut, including a nut 1. Multiple fixing plates 3 are fixedly connected to the top of the nut 1. Multiple screws 4 are threadedly connected to the top of each fixing plate 3. Multiple threaded holes 5 are provided on the top of the nut 1. The fixing plates 3 are fixed to the nut 1 by the screws 4 entering the threaded holes 5. The bottom ends of the screws 4 penetrate the top of the fixing plates 3 and are threadedly connected to the threaded holes 5, facilitating the installation and removal of the shock-absorbing tube 6. The shock-absorbing tube 6 is fixedly connected to the top of each fixing plate 3 for buffering vibration. Multiple fixing sleeves 7 are fixedly connected to the top of the nut 1. Springs 8 are fixedly connected to the bottom inner side of each fixing sleeve 7. Sliding columns 9 are fixedly connected to the top of each spring 8. The same top plate 10 is fixedly connected to the top of each sliding column 9. When subjected to pressure, the top plate 10 presses against the sliding column 9, causing it to press against the spring 8. When the top plate 10 descends, it also presses against the shock-absorbing tube 6. A sliding mechanism 2 is provided inside each fixing sleeve 7 to reduce the friction of the sliding column 9.

[0032] Specifically, multiple fixing plates 3 are fixedly connected to the top of the nut 1. Each fixing plate 3 has multiple threaded holes 5 on its top. Multiple screws 4 are threaded into the pre-drilled threaded holes 5 on the top of the nut 1. Simply screwing the screws 4 in sequence until their bottom ends pass through the top of the fixing plate 3 and tightly engage with the threaded holes 5 on the nut 1 allows for convenient and quick secure installation of the fixing plate 3 on the nut 1. This facilitates the subsequent installation and removal of the shock absorber tube 6. Each of the multiple fixing plates 3 has a shock absorber tube 6 fixedly connected to its top. The shock absorber tube 6 is used to buffer vibration. Multiple fixing sleeves 7 are also fixedly connected to the top of the nut 1. Each fixed sleeve 7 has a spring 8 fixed to its inner bottom. The top of the spring 8 is connected to a sliding column 9. The tops of multiple sliding columns 9 are fixedly connected to the same top plate 10. When the structure is subjected to external pressure, the top plate 10 will first be subjected to force and press down on the sliding column 9. The sliding column 9 will then press the spring 8 below, causing it to undergo elastic deformation to absorb some of the pressure energy. In addition, during the process of the top plate 10 descending, it will also press down on the shock-absorbing tube 6. The shock-absorbing tube 6 and the spring 8 work together to further improve the buffering and shock absorption effect of the entire structure, effectively reducing the impact of external pressure and vibration on the connecting parts of the nut 1.

[0033] Reference Figure 5 The sliding mechanism 2 includes multiple rotating balls 203. The outer walls of the multiple rotating balls 203 are slidably connected to the outer wall of the sliding column 9. Multiple sliding grooves 201 are opened around the inside of the multiple fixed sleeves 7. Semicircular grooves 202 are opened around the outer walls of the multiple sliding columns 9. The outer walls of the multiple rotating balls 203 are slidably connected to the inside of the semicircular grooves 202. When the sliding column 9 moves up and down, the rotating balls 203 will rotate inside the sliding grooves 201 and semicircular grooves 202, changing sliding friction into rolling friction and reducing friction. Baffles 204 are fixedly connected to the top of the multiple sliding grooves 201 and the bottom of the semicircular grooves 202 to prevent the rotating balls 203 from falling off.

[0034] Specifically, multiple sliding grooves 201 are evenly distributed around the inside of the fixed sleeve 7, while semicircular grooves 202 are correspondingly provided around the outer wall of the sliding column 9. The outer wall of the rotating ball 203 is slidably connected to the outer wall of the sliding column 9, and is located inside the semicircular groove 202. When the sliding column 9 moves up and down due to external pressure, the rotating ball 203 will rotate in the sliding groove 201 and the semicircular groove 202, successfully transforming the original sliding friction into rolling friction, greatly reducing friction, making the movement of the sliding column 9 smoother, and reducing energy loss. To prevent the rotating ball 203 from falling off during operation, baffles 204 are fixedly connected to the top of the sliding groove 201 and the bottom of the semicircular groove 202, providing a reliable guarantee for the stable operation of the entire structure.

[0035] Reference Figure 1 and Figure 2Multiple anti-slip tubes 11 are fixedly connected to the top of the top plate 10. The multiple anti-slip tubes 11 are all arranged at equal intervals to increase friction. Washers 12 are fixedly connected to the middle of the outer wall of multiple screws 4. The multiple washers 12 are all designed with a smooth shape to prevent the screws 4 from being tightened. Fixing rings 13 are fixedly connected to the outer wall of multiple fixing sleeves 7. Reflective stickers 14 are fixedly connected to the outer wall of multiple fixing rings 13 so that their positions can be seen when reflected light.

[0036] Specifically, multiple anti-slip tubes 11 are neatly and equidistantly fixed on the top of the top plate 10. The presence of these anti-slip tubes 11 greatly increases the friction of the surface of the top plate 10. Whether placing items or bearing pressure, it can effectively prevent objects from sliding and improve the stability of the structure. Smoothly designed washers 12 are fixed in the middle of the outer wall of the screw 4 to prevent the screw 4 from being tightened too much and to facilitate subsequent disassembly and maintenance. The outer walls of multiple fixing sleeves 7 are respectively connected to fixing rings 13, and the outer wall of each fixing ring 13 is covered with reflective stickers 14. Under light, the reflective stickers 14 can clearly show the position of the fixing sleeve 7 and serve as a guide.

[0037] Reference Figure 3 , Figure 4 and Figure 5 The bottoms of multiple fixing plates 3 are equidistantly fixed to the top of nuts 1, the bottoms of multiple shock-absorbing tubes 6 are equidistantly fixed to the top of fixing plates 3, the outer walls of multiple screws 4 match the interior of threaded holes 5, the screws 4 can be turned into the interior of threaded holes 5, the outer diameters of multiple sliding pillars 9 are smaller than the inner diameters of fixing sleeves 7, the sliding pillars 9 can move up and down inside fixing sleeves 7, the size of multiple sliding grooves 201 matches the size of semicircular grooves 202, and the diameter of multiple rotating balls 203 matches the diameter of the hole formed between sliding grooves 201 and semicircular grooves 202;

[0038] Specifically, multiple fixing plates 3 are fixed to the top of the nut 1 at equal intervals, and multiple shock-absorbing tubes 6 are also fixed to the top of the fixing plates 3 at equal intervals to ensure the uniform distribution and effective performance of the shock absorption function. The outer wall size of the screw 4 is precisely adapted to the inside of the threaded hole 5, so that the screw 4 can be smoothly screwed into the threaded hole 5 to achieve a tight connection between the fixing plate 3 and the nut 1. The outer diameter of the sliding column 9 is specially designed to be smaller than the inner diameter of the fixing sleeve 7, which allows the sliding column 9 to move up and down flexibly inside the fixing sleeve 7. The sliding groove 201 and the semi-circular groove 202 are the same size, and the diameter of the ball 203 matches the diameter of the hole formed by the two, ensuring the normal rolling of the ball 203 and helping the sliding column 9 to run smoothly.

[0039] Working principle: The top of the nut 1 is connected to multiple fixing plates 3. The fixing plates 3 are fixed by screws 4 and threaded holes 5 on the top of the nut 1, which facilitates the subsequent installation and disassembly of the shock absorber tube 6. The shock absorber tube 6 is installed on the top of the fixing plates 3. When external pressure is applied to this structure, the top plate 10 is forced to press down on the sliding column 9. The sliding column 9 then presses the spring 8. The spring 8 undergoes elastic deformation, converting some of the pressure energy into elastic potential energy, which plays a preliminary buffering role. During the descent of the top plate 10, it will also press the shock absorber tube 6. The shock absorber tube 6 and the spring 8 work together to further absorb and disperse pressure and vibration energy, greatly reducing the impact of external pressure and vibration on the components connected to the nut 1, thereby achieving efficient buffering and shock absorption function and ensuring the stable operation of the connected components.

[0040] Furthermore, when external pressure causes the sliding column 9 to move up and down, the rotating ball 203, due to its special position, will rotate within the space formed by the sliding groove 201 and the semi-circular groove 202. The original sliding friction between the sliding column 9 and the fixed sleeve 7 is transformed into rolling friction through the intervention of the rotating ball 203. According to the principle of tribology, the coefficient of rolling friction is much smaller than the coefficient of sliding friction, so the friction force is greatly reduced. The resistance encountered by the sliding column 9 when it moves is reduced, the operation is smoother, and the energy loss is also reduced. To ensure that the rotating ball 203 always works stably, baffles 204 are fixedly connected to the top of the sliding groove 201 and the bottom of the semi-circular groove 202, which effectively prevents the rotating ball 203 from falling due to shaking, displacement, or other factors during operation, ensuring the stable operation of the entire structure and allowing the function of the rotating ball 203 in reducing friction to be continuously and reliably performed.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage spring washer shock absorbing nut comprising a nut (1) characterized in that: The top of the nut (1) is fixedly connected with a plurality of fixed plates (3), the top of the plurality of fixed plates (3) is threadedly connected with a plurality of screws (4), the top of the nut (1) is provided with a plurality of threaded holes (5), the bottom end of the plurality of screws (4) penetrates the top of the fixed plate (3) and is threadedly connected with the threaded hole (5), the top of the plurality of fixed plates (3) is fixedly connected with a plurality of shock-absorbing pipes (6), the top of the nut (1) is fixedly connected with a plurality of fixed sleeves (7), the inner bottom of the plurality of fixed sleeves (7) is fixedly connected with a plurality of springs (8), the top of the plurality of springs (8) is fixedly connected with a plurality of sliding columns (9), the top of the plurality of sliding columns (9) is fixedly connected with the same top plate (10), the inside of the plurality of fixed sleeves (7) is provided with a sliding mechanism (2), and the sliding mechanism (2) is used to reduce the friction of the sliding column (9).

2. The multi-stage spring washer shock absorbing nut of claim 1, wherein: The sliding mechanism (2) comprises a plurality of rotating balls (203), the outer wall of the plurality of rotating balls (203) is slidably connected with the outer wall of the sliding column (9), a plurality of sliding grooves (201) are formed in the periphery of the inside of the plurality of fixed sleeves (7), a plurality of semicircular grooves (202) are formed in the periphery of the outer wall of the plurality of sliding columns (9), the outer wall of the plurality of rotating balls (203) is slidably connected with the inside of the semicircular groove (202), and the top of the plurality of sliding grooves (201) and the bottom of the semicircular groove (202) are fixedly connected with a baffle (204).

3. The multi-stage spring washer shock absorbing nut of claim 1, wherein: The top of the top plate (10) is fixedly connected with a plurality of anti-skid pipes (11), and the plurality of anti-skid pipes (11) are arranged at equal distances.

4. The multi-stage wafer cushioning shock absorbing nut of claim 1, wherein: The outer wall of the plurality of screws (4) is fixedly connected with a plurality of gaskets (12), and the plurality of gaskets (12) are designed to be round and smooth.

5. The multi-stage spring washer shock absorbing nut of claim 1, wherein: The outer wall of the plurality of fixed sleeves (7) is fixedly connected with a plurality of fixed rings (13), and the outer wall of the plurality of fixed rings (13) is fixedly connected with a plurality of reflective stickers (14).

6. The multi-stage wafer cushioning shock absorbing nut of claim 1, wherein: The bottom of the plurality of fixed plates (3) is fixedly connected with the top of the nut (1) at equal distances, and the bottom of the plurality of shock-absorbing pipes (6) is fixedly connected with the top of the fixed plate (3) at equal distances.

7. The multi-stage wafer cushioning shock absorbing nut of claim 1, wherein: The outer wall of the plurality of screws (4) is matched with the inside of the threaded hole (5), and the outer diameter of the plurality of sliding columns (9) is smaller than the inner diameter of the fixed sleeve (7).

8. The multi-stage wafer cushioning shock absorbing nut of claim 2, wherein: The size of the plurality of sliding grooves (201) is matched with the size of the semicircular groove (202), and the diameter of the plurality of rotating balls (203) is matched with the diameter of the hole formed between the sliding groove (201) and the semicircular groove (202).

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