Silicon plastic steel foot anti-vibration buffer assembly

By introducing a combination design of adjustment rod, disassembly mechanism and extension mechanism into the silicon-plastic steel foot, the problem that the existing silicon-plastic steel foot cannot absorb energy in multiple directions is solved, realizing multi-directional energy absorption and enhanced stability, and reducing the risk of fatigue damage and fracture deformation of the component.

CN224381052UActive Publication Date: 2026-06-19JIANGSU JINSANLI POWER EQUIP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU JINSANLI POWER EQUIP
Filing Date
2025-07-31
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

When subjected to impact and vibration, existing silicon-plastic steel feet cannot absorb energy from other directions by relying solely on the spring to release force in one direction. This results in residual energy causing reverse vibration and secondary impact, which in turn exacerbates fatigue damage to the components and may lead to breakage or deformation.

Method used

The design employs a combination of adjusting rod, disassembly mechanism, and extension mechanism. The sliding block drives the double-section rotating plate to rotate, and the piston rod slides inside the piston cylinder to discharge compressed air for damping and buffering. At the same time, the worm gear meshes with the worm wheel to drive the bidirectional lead screw to rotate, and the extension plate expands or retracts to adjust the contact area, thereby achieving multi-directional energy absorption and enhanced stability.

🎯Benefits of technology

It effectively reduces fatigue damage and local stress overload caused by uneven stress and residual energy in components, lowers the risk of fracture and deformation, and improves the seismic performance of silicon-plastic steel feet.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of mechanical vibration damping technology and discloses a silicon-plastic steel foot vibration damping component, including an adjusting rod. Multiple disintegration mechanisms are equidistantly installed on the lower part of the outer wall of the adjusting rod. These disintegration mechanisms are used to dissipate elastic force. An extension mechanism is installed at the bottom end of the adjusting rod to increase the contact area between the adjusting rod and the ground. A sliding block is installed on the outer wall of the adjusting rod. Each disintegration mechanism includes a spring, which is equidistantly installed on the lower part of the outer wall of the adjusting rod. A slider is fixedly connected to each adjacent end of the outer wall of the spring, and a piston rod is fixedly connected to the front side of the outer wall of each slider. In this utility model, the piston rod compresses air within a piston cylinder and discharges it through an exhaust groove to achieve damping and buffering. After the external force disappears, the spring returns to its original position, driving the slider to move in the opposite direction, continuously buffering and damping, reducing the risk of component fatigue, stress overload, and fracture deformation.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical shock absorption technology, and in particular to a silicon-plastic steel foot shock-absorbing buffer assembly. Background Technology

[0002] "Silicone-plastic" refers to a polymer material with silicone rubber as the base material and modified with plastics (such as PVC and ABS). It has the characteristics of good elasticity, strong weather resistance, and good insulation. This type of material can absorb vibration energy and reduce impact, while also having a certain degree of wear resistance and anti-aging ability. Silicone-plastic material is wrapped or embedded in the steel foot structure to form a "rigid-flexible" composite component. The steel is responsible for bearing the weight and main load, while the silicone-plastic material is responsible for buffering vibration and absorbing energy. The silicone-plastic steel foot anti-vibration buffer component is a device used to enhance the anti-vibration performance of silicone-plastic steel feet. It consists of springs, rubber pads, and other components.

[0003] According to the search, the Chinese patent announcement number is CN212303237U, which discloses a high mechanical load polymeric silicon plastic steel foot, including a support rod (1). The top end of the support rod (1) is used to connect and support the polymeric silicon insulator, and the bottom end of the support rod (1) is used to install on the iron tower. A first pad (2) is provided on the support rod (1). The first pad (2) is integrally formed with the support rod (1). A polymeric silicon protective layer (3) is covered on the support rod (1) from the top end of the first pad (2) upwards. The beneficial effects of this utility model are as follows: When installed on a steel tower, the polymeric crystalline silicon protective layer does not contact the tower and will not be worn by the tower. The first gasket in this utility model fits the tower without wear and is not prone to loosening. However, in existing devices, the silicon-plastic steel feet can only rely on their own springs to release force in one direction when subjected to impact and vibration. However, unidirectional force release can only consume energy in a part of the direction. Energy in other directions cannot be absorbed and will be stored in the steel feet or connected structures in the form of elastic potential energy. When the external force disappears, the residual energy will cause the structure to vibrate in the opposite direction and form a secondary impact, thereby aggravating the fatigue damage of the components, causing local stress overload, and even fracture or deformation. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a silicon-plastic steel foot shock-absorbing component, which aims to improve the existing silicon-plastic steel foot in the prior art, which only relies on springs to release force in one direction and cannot absorb energy in other directions. The residual energy causes reverse vibration and secondary impact, which aggravates component fatigue damage, thereby causing local stress overload, and leading to breakage or deformation.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a silicon-plastic steel foot shock-absorbing and buffering assembly, including an adjusting rod, with multiple disintegration mechanisms equidistantly installed on the lower part of the outer wall of the adjusting rod. The disintegration mechanisms are used to disintegrate the elastic force. An extension mechanism is installed at the bottom end of the adjusting rod to increase the contact area between the adjusting rod and the ground. A sliding block is installed on the outer wall of the adjusting rod. The disintegration mechanism includes a spring, which is equidistantly installed on the lower part of the outer wall of the adjusting rod. A slider is fixedly connected to an adjacent end of the outer wall of the spring. A piston rod is fixedly connected to the front side of the outer wall of the slider. A piston cylinder is slidably connected to the outer wall of the piston rod. A connecting rod is fixedly connected to the middle of the outer wall of the slider. A compression assembly is installed at the bottom of the adjusting rod. An exhaust groove is opened at the top of the piston cylinder.

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

[0007] The extrusion assembly includes a base plate, which is installed at the bottom of the adjusting rod. Multiple double-section rotating plates are rotatably connected at equal intervals to the top of the base plate. The other end of the outer wall of the double-section rotating plate is fixedly connected to the outer wall of the sliding block. The middle part of the outer wall of the multiple double-section rotating plates is rotatably connected to the left and right ends of the outer wall of the connecting rod. Multiple L-shaped support plates are fixedly connected at equal intervals around the outer wall of the base plate. A hollow block is fixedly connected to the top of the L-shaped support plate.

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

[0009] The expansion mechanism includes a hollow long plate, which is installed at the bottom of an adjusting rod. A worm gear is rotatably connected to the right side of the inner wall of the hollow long plate. Multiple long short plates are fixedly connected at equal intervals to the top of the inner wall of the hollow long plate. A double-acting screw is rotatably connected to the middle of the inner wall of the long short plates. A worm wheel is fixedly connected to the middle of the outer wall of the double-acting screw. Guide rods are fixedly connected to the outer walls of the long short plates on opposite sides. Multiple movable plates are threaded at equal intervals to the outer wall of the double-acting screw. An expansion plate is fixedly connected to the bottom of each movable plate.

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

[0011] The worm gear meshes with the worm wheel, and the outer wall of the guide rod is slidably connected to the interior of the moving plate.

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

[0013] The outer walls of the plurality of piston cylinders are fixedly connected at one end to the side adjacent to the outer wall of the hollow long block, and the outer wall of the slider is slidably connected to the interior of the hollow long block.

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

[0015] An adjusting nut is threaded to the bottom of the outer wall of the adjusting rod, and multiple piston rods are fixedly connected at equal intervals to the top of the sliding block.

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

[0017] A fixed disc is threaded to the upper part of the outer wall of the adjusting rod, and multiple piston cylinders are fixedly connected to the bottom end of the fixed disc at equal intervals.

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

[0019] A main spring is installed on the outer wall of the adjusting rod, and the top end of the main spring is fixedly connected to the inner wall of the sliding block.

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

[0021] 1. In this utility model, when the silicon-plastic steel foot shock-absorbing and buffering component is impacted, the sliding block slides along the adjusting rod, driving the double-section rotating plate to rotate. The connecting rod pushes the slider to squeeze the spring, dispersing the force on the main spring. At the same time, the piston rod compresses air in the piston cylinder and discharges it through the exhaust groove to achieve damping and buffering. After the external force disappears, the spring returns to its original position, driving the slider to move in the opposite direction to continuously buffer and reduce shock, reducing the risk of component fatigue, stress overload and fracture deformation.

[0022] 2. In this utility model, rotating the worm gear, through meshing with the worm wheel, drives the bidirectional lead screw to rotate within the long short plate. The moving plate moves along the axial direction of the lead screw and remains stable under the guidance of the guide rod, thereby driving the expansion plate to unfold or retract. Adjusting the direction of the worm gear can control the direction of the bidirectional lead screw, realizing the extension and retraction of the expansion plate. Adjusting the contact area between the adjusting rod and the ground enhances the stability of the component. Attached Figure Description

[0023] Figure 1 This is a front view of the silicon-plastic-steel foot shock-absorbing and buffering assembly proposed in this utility model;

[0024] Figure 2 This is a perspective view of the silicon-plastic-steel foot shock-absorbing and buffering assembly proposed in this utility model;

[0025] Figure 3 This is a partial structural diagram of the silicon-plastic-steel foot shock-absorbing and buffering assembly proposed in this utility model;

[0026] Figure 4 This is a partial structural exploded view of the silicon-plastic-steel foot shock-absorbing and buffering assembly proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the expansion mechanism of the silicon-plastic-steel foot shock-absorbing and buffering assembly proposed in this utility model;

[0028] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Adjusting rod; 2. Disassembly mechanism; 201. Spring 1; 202. Piston cylinder 1; 203. Piston rod 1; 204. Slider; 205. Exhaust groove; 206. Connecting rod; 207. Extrusion assembly; 2071. Base plate; 2072. L-shaped support plate; 2073. Hollow long block; 2074. Double-section rotating plate; 3. Expansion mechanism; 301. Hollow long plate; 302. Expansion plate; 303. Moving plate; 304. Long short plate; 305. Worm gear; 306. Worm wheel; 307. Two-way lead screw; 308. Guide long rod; 4. Main spring; 5. Sliding long block; 6. Adjusting nut; 7. Piston rod 2; 8. Piston cylinder 2; 9. Fixed circular plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0032] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a silicon-plastic steel foot shock-absorbing and buffering component, including an adjusting rod 1. Multiple disintegration mechanisms 2 are equidistantly installed on the lower part of the outer wall of the adjusting rod 1. The disintegration mechanisms 2 are used to disintegrate the elastic force. An extension mechanism 3 is installed at the bottom end of the adjusting rod 1 to increase the contact area between the adjusting rod 1 and the ground. A sliding block 5 is installed on the outer wall of the adjusting rod 1. The disintegration mechanism 2 includes a spring 201, which is equidistantly installed on the lower part of the outer wall of the adjusting rod 1. A slider 204 is fixedly connected to each adjacent end of the outer wall of the spring 201. A piston rod 203 is fixedly connected to the front side of the outer wall of the slider 204. A piston cylinder 202 is slidably connected to the outer wall of the piston rod 203. A connecting rod 206 is fixedly connected to the middle of the outer wall of the slider 204. A compression component 20 is installed at the bottom of the adjusting rod 1. 7. The piston cylinder 202 has an exhaust groove 205 at the top. The extrusion assembly 207 includes a base plate 2071, which is installed at the bottom of the adjusting rod 1. Multiple double-section rotating plates 2074 are rotatably connected at equal intervals at the top of the base plate 2071. The other end of the outer wall of the double-section rotating plate 2074 is fixedly connected to the outer wall of the sliding block 5. The middle part of the outer wall of the multiple double-section rotating plates 2074 is rotatably connected to the left and right ends of the outer wall of the connecting rod 206. Multiple L-shaped support plates 2072 are fixedly connected at equal intervals around the outer wall of the base plate 2071. A hollow block 2073 is fixedly connected to the top of the L-shaped support plate 2072. The worm 305 is meshed with the worm wheel 306. The outer wall of the guide rod 308 is slidably connected to the inside of the moving plate 303. The guide rod 308 can limit the moving direction and trajectory of the moving plate 303.

[0033] Specifically, when the silicon-plastic steel foot shock-absorbing component is subjected to impact, the sliding block 5 on the outer wall of the adjusting rod 1 will slide along the adjusting rod 1 due to the force. The movement of the sliding block 5 drives multiple double-section rotating plates 2074 to rotate. During the rotation of the double-section rotating plates 2074, the connecting rod 206 pushes the slider 204 to move radially along the adjusting rod 1. The slider 204 moves and compresses the spring 201, transferring part of the force borne by the main spring 4 to the spring 201, thus achieving force decomposition. At the same time, the piston rod 203 fixed at the front end of the slider 204 slides inside the piston cylinder 202, compressing the air inside the piston cylinder 202. The air is slowly discharged through the exhaust groove 205 at the top of the piston cylinder 202. During this process, the damping effect of air is used to further consume energy and act as a buffer. When the external force decreases or disappears, the compressed spring 201 recovers its elasticity, pushing the slider 204 to move in the opposite direction and bounce up, causing the piston rod 203 to slide back into the piston cylinder 202. This continuously and effectively resists impact and vibration, reduces fatigue damage and local stress overload caused by uneven force and residual energy in the components, and reduces the occurrence of breakage or deformation. The worm 305 is meshed with the worm wheel 306, and the outer wall of the guide rod 308 is slidably connected to the inside of the moving plate 303. The guide rod 308 can limit the movement direction and trajectory of the moving plate 303.

[0034] Reference Figure 2 , Figure 5 and Figure 6 The expansion mechanism 3 includes a hollow long plate 301, which is installed at the bottom end of the adjusting rod 1. A worm gear 305 is rotatably connected to the right side of the inner wall of the hollow long plate 301. Multiple long short plates 304 are fixedly connected at equal intervals to the top of the inner wall of the hollow long plate 301. A double-acting screw 307 is rotatably connected to the middle of the inner wall of the long short plates 304. A worm wheel 306 is fixedly connected to the middle of the outer wall of the double-acting screw 307. Guide rods 308 are fixedly connected to the outer walls of the long short plates 304 on opposite sides. Multiple movable plates 303 are threaded at equal intervals to the outer wall of the double-acting screw 307. The bottom of the movable plates 303 is fixedly connected to the bottom of the screw 303. An expansion plate 302 is fixedly connected. The outer walls of multiple piston cylinders 202 are fixedly connected to the side adjacent to the outer wall of the hollow long block 2073 at one end away from each other. The outer wall of the slider 204 is slidably connected to the inside of the hollow long block 2073. The hollow long block 2073 can limit the sliding trajectory of the slider 204. An adjusting nut 6 is threadedly connected to the bottom of the outer wall of the adjusting rod 1. By rotating the adjusting nut 6, the sliding long block 5 can be adjusted to the sliding distance on the outer wall of the adjusting rod 1. Multiple piston rods 7 are fixedly connected at equal intervals to the top of the sliding long block 5. The piston rods 7 can play a secondary buffering and force relief role.

[0035] Specifically, by rotating the worm gear 305 to mesh with the worm wheel 306, the worm wheel 306 is driven to rotate. The worm wheel 306 is fixed in the middle of the double-acting lead screw 307, thereby causing the double-acting lead screw 307 to rotate within the elongated short plate 304. When the double-acting lead screw 307 rotates, the movable plate 303 on its outer wall moves along the axial direction of the lead screw due to the threaded connection. At the same time, the movable plate 303 is slidably connected to the guide rod 308 to ensure stable movement. The movable plate 303 drives the bottom extension plate 302 to expand outward or retract inward towards the hollow long plate 301. The rotation direction of the worm gear 305 can be adjusted to control the rotation direction of the bidirectional lead screw 307, thereby enabling the expansion plate 302 to unfold and retract. This adjusts the contact area between the adjusting rod 1 and the ground, enhancing the stability of the component under different working conditions. The bottom of the outer wall of the adjusting rod 1 is threaded with an adjusting nut 6. By rotating the adjusting nut 6, the sliding block 5 can be adjusted to slide on the outer wall of the adjusting rod 1. Multiple piston rods 7 are fixedly connected at equal intervals to the top of the sliding block 5. The piston rods 7 can play a secondary buffering and force-relieving role.

[0036] Reference Figure 1 and Figure 2 The upper part of the outer wall of the adjusting rod 1 is threaded with a fixed disc 9. The bottom end of the fixed disc 9 is fixedly connected with multiple piston cylinders 8 at equal intervals. The piston rod 7 slides in the piston cylinders 8, which can play a secondary buffering and force relief role. The outer wall of the adjusting rod 1 is equipped with a main spring 4. The top end of the main spring 4 is fixedly connected to the inner wall of the sliding block 5. The sliding block 5 can squeeze the main spring 4 to buffer and relieve force by sliding.

[0037] Specifically, a fixed disc 9 is threadedly connected to the upper part of the outer wall of the adjusting rod 1. Multiple piston cylinders 8 are fixedly connected at equal intervals to the bottom end of the fixed disc 9. The piston rod 7 slides inside the piston cylinders 8, which can play a secondary buffering and force relief role. A main spring 4 is installed on the outer wall of the adjusting rod 1. The top end of the main spring 4 is fixedly connected to the inner wall of the sliding block 5. The sliding block 5 can squeeze the main spring 4 to buffer and relieve force by sliding.

[0038] Working principle: When the silicon-plastic steel foot shock-absorbing component is subjected to impact force, the sliding block 5 on the outer wall of the adjusting rod 1 will slide along the adjusting rod 1 due to the force. The movement of the sliding block 5 drives multiple double-section rotating plates 2074 to rotate. During the rotation of the double-section rotating plates 2074, the connecting rod 206 pushes the slider 204 to move radially along the adjusting rod 1. The slider 204 moves and compresses the spring 201, transferring part of the force borne by the main spring 4 to the spring 201, thus achieving force decomposition. At the same time, the piston rod 203 fixed at the front end of the slider 204 slides inside the piston cylinder 202, compressing... The air inside the piston cylinder 202 is slowly discharged through the exhaust groove 205 at the top of the piston cylinder 202. During this process, the damping effect of the air further consumes energy and acts as a buffer. When the external force decreases or disappears, the compressed spring 201 recovers its elasticity, pushes the slider 204 to move in the opposite direction and bounces up, and drives the piston rod 203 to slide back into the piston cylinder 202. This continuously and effectively resists impact and vibration, reduces fatigue damage and local stress overload caused by uneven force and residual energy in the components, and reduces the occurrence of breakage or deformation.

[0039] By rotating the worm gear 305 to mesh with the worm wheel 306, the worm wheel 306 will be driven to rotate. The worm wheel 306 is fixed in the middle of the double-acting lead screw 307, which in turn causes the double-acting lead screw 307 to rotate within the elongated short plate 304. When the double-acting lead screw 307 rotates, the movable plate 303 on its outer wall moves along the axial direction of the lead screw due to the threaded connection. At the same time, the movable plate 303 is slidably connected to the guide rod 308 to ensure stable movement. The movable plate 303 drives the bottom extension plate 302 to unfold to the outside or retract to the inside of the hollow long plate 301. By adjusting the rotation direction of the worm gear 305, the rotation direction of the double-acting lead screw 307 can be controlled to realize the unfolding and retraction of the extension plate 302, thereby adjusting the contact area between the adjusting rod 1 and the ground and enhancing the stability of the component under different working conditions.

[0040] 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 silicon-plastic steel foot shock-absorbing and buffering assembly, including an adjusting rod (1), characterized in that: Multiple decomposition mechanisms (2) are equidistantly installed on the lower part of the outer wall of the adjusting rod (1). The decomposition mechanism (2) is used to decompose the elastic force. An extension mechanism (3) is installed at the bottom of the adjusting rod (1). The extension mechanism (3) is used to increase the contact area between the adjusting rod (1) and the ground. A sliding block (5) is installed on the outer wall of the adjusting rod (1). The disassembly mechanism (2) includes a spring (201), which is equidistantly installed on the lower part of the outer wall of the adjusting rod (1). A slider (204) is fixedly connected to one adjacent end of the outer wall of the spring (201). A piston rod (203) is fixedly connected to the front side of the outer wall of the slider (204). A piston cylinder (202) is slidably connected to the outer wall of the piston rod (203). A connecting rod (206) is fixedly connected to the middle part of the outer wall of the slider (204). A compression assembly (207) is installed at the bottom of the adjusting rod (1). An exhaust groove (205) is opened at the top of the piston cylinder (202).

2. The silicon-plastic steel foot shock-absorbing and buffering assembly according to claim 1, characterized in that: The extrusion assembly (207) includes a base plate (2071), which is installed at the bottom of the adjusting rod (1). Multiple double-section rotating plates (2074) are rotatably connected at equal intervals to the top of the base plate (2071). The other end of the outer wall of the double-section rotating plate (2074) is fixedly connected to the outer wall of the sliding block (5). The middle part of the outer wall of the multiple double-section rotating plates (2074) is rotatably connected to the left and right ends of the outer wall of the connecting rod (206). Multiple L-shaped support plates (2072) are fixedly connected at equal intervals around the outer wall of the base plate (2071). A hollow block (2073) is fixedly connected to the top of the L-shaped support plate (2072).

3. The silicon-plastic steel foot shock-absorbing and buffering assembly according to claim 1, characterized in that: The expansion mechanism (3) includes a hollow long plate (301), which is installed at the bottom of the adjusting rod (1). A worm gear (305) is rotatably connected to the right side of the inner wall of the hollow long plate (301). Multiple long short plates (304) are fixedly connected at equal intervals to the top of the inner wall of the hollow long plate (301). A two-way screw (307) is rotatably connected to the middle of the inner wall of the long short plate (304). A worm wheel (306) is fixedly connected to the middle of the outer wall of the two-way screw (307). Guide rods (308) are fixedly connected to the outer wall of the long short plate (304) on the side away from each other. Multiple moving plates (303) are threaded at equal intervals to the outer wall of the two-way screw (307). An expansion plate (302) is fixedly connected to the bottom of the moving plate (303).

4. The silicon-plastic steel foot shock-absorbing and buffering assembly according to claim 3, characterized in that: The worm (305) is meshed with the worm wheel (306), and the outer wall of the guide rod (308) is slidably connected to the interior of the moving plate (303).

5. The silicon-plastic steel foot shock-absorbing and buffering assembly according to claim 2, characterized in that: The outer walls of the plurality of piston cylinders (202) are fixedly connected at one end away from each other to the side adjacent to the outer wall of the hollow block (2073), and the outer wall of the slider (204) is slidably connected to the interior of the hollow block (2073).

6. The silicon-plastic steel foot shock-absorbing and buffering assembly according to claim 1, characterized in that: The bottom of the outer wall of the adjusting rod (1) is threaded with an adjusting nut (6), and the top of the sliding block (5) is fixedly connected with multiple piston rods (7) at equal intervals.

7. The silicon-plastic steel foot shock-absorbing and buffering assembly according to claim 6, characterized in that: The upper part of the outer wall of the adjusting rod (1) is threaded with a fixed disc (9), and multiple piston cylinders (8) are fixedly connected at equal intervals at the bottom end of the fixed disc (9).

8. The silicon-plastic steel foot shock-absorbing and buffering assembly according to claim 6, characterized in that: The outer wall of the adjusting rod (1) is fitted with a main spring (4), and the top end of the main spring (4) is fixedly connected to the inner wall of the sliding block (5).

Citation Information

Patent Citations

  • High-mechanical-load polymerization crystalline silicon plastic steel foot

    CN212303237U