Damping trundle
By designing a shock absorbing caster including main bracket, support bracket, roller, support plate and shock absorbing components, the problems of complex structure, poor shock absorption effect, and inconvenient disassembly and assembly in the prior art are solved, and the simple structure, good shock absorption effect and convenient disassembly and assembly are achieved.
Patent Information
- Application Number
- CN202422159581.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-03
AI Technical Summary
The shock absorbing casters in the prior art have complex structures, poor shock absorption effects, and inconvenient disassembly and assembly.
A shock absorbing caster including a main bracket, a support bracket, a roller, a support plate and a shock absorbing assembly is designed. The shock absorbing of the roller vibration is achieved through a combination of connecting rods, elastic members and a damping assembly, and the shock absorbing effect is further optimized through a cushion and an adjustable damper.
The shock absorbing casters are realized with a simple structure and good shock absorption effect, which is easy to disassemble and assemble. At the same time, the design of damping components and cushion pads enhances the shock absorption effect and durability of the support plate.
Smart Images
Figure CN223030696U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of casters, and more specifically, to a shock-absorbing caster. Background Art
[0002] Casters are mainly used in carts or cage carts for transporting parts in workshops. At present, due to the material of the rotating wheel and the rigid structure of conventional casters, during the pressure-bearing transportation process, when passing through an uneven road surface, rapid impact loads are directly transmitted and relatively high noise is generated. This causes certain damage to the transported parts, and after multiple carts gather, the sound generates noise exceeding 85 dB instantaneously in the workshop.
[0003] The prior art discloses an eccentric shock-absorbing caster, which realizes the shock-absorbing effect through the lever principle and spring compression. Both ends of the support shell are fixedly connected to two support vertical plates respectively, and reset springs are fixedly arranged on both sides inside the support shell. The structure of this technology is complex, the shock-absorbing effect is poor, and disassembly and assembly are inconvenient. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the deficiencies in the prior art, such as complex structure, poor shock-absorbing effect, and inconvenient disassembly and assembly, and to provide a shock-absorbing caster with a simple structure, good shock-absorbing effect, and convenient disassembly and assembly.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] A shock-absorbing caster includes a main bracket, a support bracket, a roller, a support plate, and a shock-absorbing component. The middle of the support bracket is rotatably connected to the main bracket. The roller is rotatably installed at one end of the support bracket. The support plate is installed on the main bracket. The shock-absorbing component includes a connecting rod, an elastic member, and a damping component. The connecting rod and the elastic member are both vertically arranged. The lower end of the connecting rod is connected to the other end of the support bracket. The upper end of the elastic member is connected to the upper end of the connecting rod. The lower end of the elastic member is connected to the support plate. Both ends of the elastic member are respectively connected to both ends of the damping component.
[0007] According to the above technical means, a shock-absorbing caster provided by the utility model is installed on a trolley or a cage cart that needs to be used through a main bracket. The roller contacts the ground to bear the pressure of the trolley or the cage cart for transportation. When the trolley or the cage cart passes through an uneven road surface, the roller vibrates up and down, driving the support bracket to rotate, driving the other end of the support bracket to vibrate in the opposite direction to the roller. The other end of the support bracket drives the connecting rod to move up and down, and the connecting rod drives the upper end of the elastic member to move. Since the lower end of the elastic member is stably connected to the support plate and does not move, the elastic member is compressed or stretched, damping the vibration of the roller. At the same time of damping, the vibration generated by the impact on the elastic member is accelerated and attenuated through the provided damping component, suppressing the bouncing of the elastic member, so that the damping effect is better. At the same time, this shock-absorbing caster only includes a main bracket, a support bracket, a roller, a support plate and a shock-absorbing component, with a simple structure and convenient disassembly and assembly.
[0008] Further, the shock-absorbing component further includes a buffer pad, the buffer pad is arranged on the support plate, and the lower end of the elastic member is arranged on the buffer pad. The buffer pad can reduce the impact load of the elastic member on the support plate and increase the bearing strength and durability of the support plate.
[0009] Further, the support bracket includes a first lever plate, a second lever plate and a support rod. The first lever plate and the second lever plate are respectively arranged on opposite sides of the main bracket. The middle parts of the first lever plate and the second lever plate are rotatably connected to the main bracket. The two ends of the roller are respectively rotatably installed on the same end of the first lever plate and the second lever plate. The two ends of the support rod are respectively connected to the other ends of the first lever plate and the second lever plate. By arranging the first lever plate and the second lever plate, the rolling of the roller is more stable and the damping effect of the shock-absorbing component is better.
[0010] Further, the shock-absorbing component further includes a connecting collar, the connecting collar is sleeved on the support rod, the connecting collar is connected to the lower end of the connecting rod, the connecting rod penetrates through the support plate, and the connecting rod is slidably connected to the support plate. When damping, the support rod moves up and down, driving the connecting collar to rotate on the support rod, and then driving the connecting rod to move up and down. The connecting rod is guided by the support plate to make the telescopic of the elastic member more stable.
[0011] Further, the elastic member is set as a spring, and the spring is sleeved on the connecting rod. The spring has a high elastic limit, fatigue limit and impact toughness, and the connecting rod can guide the telescopic of the spring.
[0012] Furthermore, the shock absorption assembly further includes a limiting plate and a nut. The limiting plate is slidably disposed on the connecting rod. The upper end of the elastic member is connected to the limiting plate. The upper end of the connecting rod is provided with an external thread, and the nut is threadedly connected to the external thread at the upper end of the connecting rod. The lower end of the nut abuts against the limiting plate. By rotating the nut, the limiting plate is driven to rise or fall, and thus the elastic member can be driven to elongate or contract, facilitating the control of the elastic force provided by the elastic member according to requirements.
[0013] Furthermore, the damping assembly is arranged as a damping block. The two ends of the damping block are respectively connected to the limiting plate and the support plate, and the two ends of the elastic member are respectively connected to the two ends of the damping block. The damping block can inhibit the bouncing of the spring, apply a damping force to the spring to reduce vibration, and reduce the wear of the support plate.
[0014] Furthermore, the damping assembly is arranged as an adjustable damper. The two ends of the adjustable damper are respectively connected to the limiting plate and the support plate, and the two ends of the elastic member are respectively connected to the two ends of the adjustable damper. The adjustable damper can flexibly adjust the damping effect according to actual requirements, can apply different damping forces to the spring, and thus achieve different shock absorption effects.
[0015] Furthermore, at least two groups of the shock absorption assemblies are provided. It is convenient to balance the elastic forces on both sides of the main bracket and the support bracket during installation, and at the same time, the shock absorption effect can also be improved.
[0016] Furthermore, the main bracket includes a mounting plate, a first connecting plate and a second connecting plate. The mounting plate is horizontally arranged, and mounting holes are provided on the mounting plate; the first connecting plate and the second connecting plate are respectively connected to opposite sides of the mounting plate. The middle part of the first lever plate is rotatably connected to the first connecting plate, and the middle part of the second lever plate is rotatably connected to the second connecting plate; the support plate is horizontally arranged, and the two ends of the support plate are respectively connected to the first connecting plate and the second connecting plate. The provision of the mounting holes facilitates the installation of the trolley or the cage cart on the mounting plate.
[0017] Furthermore, the support plate is integrally formed with the first connecting plate and the second connecting plate. Integral forming can further reduce the wear of the support plate during shock absorption and extend the service life of the shock-absorbing caster.
[0018] Compared with the prior art, the beneficial effects are as follows:
[0019] 1. For a shock-absorbing caster provided by the present utility model, the damping assembly is provided to accelerate the attenuation of the vibration generated by the impact on the elastic member, inhibit the bouncing of the elastic member, so as to achieve a better shock absorption effect. At the same time, this shock-absorbing caster only includes a main bracket, a support bracket, a roller, a support plate and a shock absorption assembly, with a simple structure and convenient disassembly and assembly.
[0020] 2. The shock-absorbing caster provided by the utility model can drive the limiting plate to rise or fall by rotating the nut through the arrangement of the limiting plate and the nut, and further drive the elastic member to elongate or contract, so as to facilitate the control of the elastic force provided by the elastic member according to requirements.
[0021] 3. For the shock-absorbing caster provided by the utility model, the lower end of the elastic member is arranged on the buffer pad. The buffer pad can reduce the impact load of the elastic member on the support plate, reduce the wear at the connection between the support plate and the main bracket, and increase the bearing strength and durability of the support plate. Description of the Drawings
[0022] Figure 1 is a schematic structural diagram of the shock-absorbing caster of the utility model;
[0023] Figure 2 is Figure 1 the left view of
[0024] Among them, the illustration marks are explained as follows: 1. Main bracket; 101. Mounting plate; 102. First connecting plate; 103. Second connecting plate; 2. Support bracket; 201. First lever plate; 202. Second lever plate; 203. Support rod; 3. Roller; 4. Support plate; 5. Shock-absorbing assembly; 501. Connecting rod; 502. Elastic member; 503. Damping assembly; 504. Buffer pad; 505. Connecting collar; 506. Limiting plate; 507. Nut. Detailed Embodiments
[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The present invention will be described in one of the embodiments in conjunction with the specific embodiments. Among them, the accompanying drawings are only for illustrative purposes and show only schematic diagrams, rather than physical diagrams, and should not be construed as a limitation to the present invention; for better illustration of the embodiments of the present invention, some components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the actual dimensions of the product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.
[0026] In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation to the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances. Additionally, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. Additionally, the meaning of "and / or" appearing throughout the text is that it includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously.
[0027] Embodiment 1
[0028] As Figure 1 and Figure 2 shown, in this embodiment, a shock-absorbing caster is proposed, including a main bracket 1, a support bracket 2, a roller 3, a support plate 4, and a shock-absorbing assembly 5. The middle of the support bracket 2 is rotatably connected to the main bracket 1. The roller 3 is rotatably installed at one end of the support bracket 2. The support plate 4 is installed on the main bracket 1. The shock-absorbing assembly 5 includes a connecting rod 501, an elastic member 502, and a damping assembly 503. Both the connecting rod 501 and the elastic member 502 are vertically arranged. The lower end of the connecting rod 501 is connected to the other end of the support bracket 2. The upper end of the elastic member 502 is connected to the upper end of the connecting rod 501. The lower end of the elastic member 502 is connected to the support plate 4. Both ends of the elastic member 502 are respectively connected to both ends of the damping assembly 503.
[0029] According to the above technical means, a shock-absorbing caster provided by the utility model installs the shock-absorbing caster on a trolley or a cage cart that needs to be used through the main bracket 1. The roller 3 contacts the ground to bear the pressure of the trolley or the cage cart for transportation. Here, the roller 3 is made of polyurethane material. Commonly used rollers 3 are made of resin material. Polyurethane is more flexible than resin, has strong impact resistance and shock-absorbing performance, has good anti-aging performance and waterproof performance, makes the roller 3 not easy to deform, has good durability, and reduces the increase of impact load caused by the deformation of the roller 3. When the trolley or the cage cart passes through an uneven road surface, the roller 3 vibrates up and down, drives the support bracket 2 to rotate, drives the other end of the support bracket 2 to vibrate in the opposite direction to the roller 3, and the other end of the support bracket 2 drives the connecting rod 501 to move up and down. That is, when the road surface is concave, the roller 3 moves downward, driving the end of the support bracket 2 connected to the roller 3 to move downward. Since the middle of the support bracket 2 is rotatably connected to the main bracket 1, the other end of the support bracket 2 moves upward, driving the connecting rod 501 to move upward; the same is true when the road surface is convex. The connecting rod 501 drives the upper end of the elastic member 502 to move. Since the lower end of the elastic member 502 is stably connected to the support plate 4 and does not move, the elastic member 502 can be compressed or elongated, damping the movement of the connecting rod 501, and further damping the vibration of the roller 3. While damping, the damping component 503 provided accelerates the attenuation of the vibration generated by the impact on the elastic member 502, suppresses the jumping of the elastic member 502, and uses the damping force to dissipate the vibration energy, so as to stabilize the object or reduce the amplitude of the vibration, making the damping effect better. At the same time, this shock-absorbing caster only includes the main bracket 1, the support bracket 2, the roller 3, the support plate 4 and the shock-absorbing component 5, with a simple structure and convenient disassembly and assembly.
[0030] Embodiment 2
[0031] A shock-absorbing caster proposed in this embodiment, on the basis of Embodiment 1, in this embodiment, as Figure 2 shown, the support bracket 2 includes a first lever plate 201, a second lever plate 202 and a support rod 203. The first lever plate 201 and the second lever plate 202 are respectively arranged on opposite sides of the main bracket 1. The middle parts of the first lever plate 201 and the second lever plate 202 are rotatably connected to the main bracket 1. The support rod 203 is horizontally arranged. Both ends of the roller 3 are rotatably installed on the same end of the first lever plate 201 and the second lever plate 202. Bearings are arranged at the connection parts of the roller 3 with the first lever plate 201 and the second lever plate 202, which can make the roller 3 rotate more stably. Both ends of the support rod 203 are connected to the other ends of the first lever plate 201 and the second lever plate 202 respectively. By arranging the first lever plate 201 and the second lever plate 202, the rolling of the roller 3 is more stable, and the shock-absorbing effect of the shock-absorbing component 5 is better.
[0032] The shock absorbing assembly 5 also includes a connecting collar 505, which is sleeved on the support rod 203 and connected to the lower end of the connecting rod 501. The connecting rod 501 passes through the support plate 4. The connecting rod 501 is slidably connected to the support plate 4, which can support the middle section of the connecting rod 501 and extend the service life of the connecting rod 501. When shock absorbing, the support rod 203 moves up and down, driving the connecting collar 505 to rotate on the support rod 203, and then driving the connecting rod 501 to move up and down. The connecting rod 501 is guided by the support plate 4, so that the expansion and contraction of the elastic member 502 is more stable.
[0033] Example 3
[0034] This embodiment proposes a shock-absorbing caster, based on the second embodiment, in this embodiment, as Figure 2 As shown, the elastic member 502 is set as a spring, and the elastic member 502 is sleeved on the connecting rod 501. The spring has a high elastic limit, fatigue limit and impact toughness, and the connecting rod 501 can guide the expansion and contraction of the spring.
[0035] The shock absorbing assembly 5 further includes a limiting plate 506 and a nut 507. The limiting plate 506 is slidably arranged on the connecting rod 501. The upper end of the elastic member 502 is connected to the limiting plate 506. The upper end of the connecting rod 501 is provided with an external thread. The nut 507 is threadedly connected to the external thread on the upper end of the connecting rod 501. The lower end of the nut 507 abuts against the limiting plate 506. By rotating the nut 507, the limiting plate 506 is driven to rise or fall, and then the elastic member 502 can be driven to extend or contract, so that the elastic force provided by the elastic member 502 can be controlled according to needs.
[0036] The damping assembly 503 is configured as a damping block, and the two ends of the damping block are respectively connected to the limiting plate 506 and the support plate 4, and the two ends of the elastic member 502 are respectively connected to the two ends of the damping block. When a vibrating object is subjected to an external force, vibration will occur, and the energy of the vibration will be converted into mechanical energy, which will increase the amplitude of the object and form a forced vibration. The damping block can suppress the jumping of the spring by dissipating the vibration energy, reducing the amplitude of the object, and gradually stabilizing the object, and applying a damping force to the spring to reduce vibration, so that the shock absorption effect is better and the service life of the spring is extended. At the same time, it can reduce the wear at the connection between the support plate 4 and the main bracket 1, and extend the service life of the support plate 4.
[0037] There are at least two groups of shock absorbing components 5, which is convenient for balancing the elastic forces on both sides of the main bracket 1 and the supporting bracket 2 during installation, and can also improve the shock absorbing effect.
[0038] Example 4
[0039] A shock-absorbing caster proposed in this embodiment is different from that in Embodiment 3 in that the damping assembly 503 is set as an adjustable damper, and the rest are the same. In this embodiment, the two ends of the adjustable damper are respectively connected to the limiting plate 506 and the support plate 4, and the two ends of the elastic member 502 are respectively connected to the two ends of the adjustable damper. The adjustable damper includes a damper body, a piston and a piston rod. The piston rod is arranged inside the damper body, a piston is fixed in the middle of the piston rod, damping liquid is arranged in the damper body, a left side oil pipe and a right side oil pipe are respectively arranged on the left and right sides of the damper body, the left side oil pipe and the right side oil pipe are connected to both sides of a flow control valve, and by adjusting the flow control valve, the flow rate of the damping liquid can be controlled, that is, the flow rate of the damping liquid flowing from the left side to the right side can be controlled, so as to affect the overall damping effect of the damper. One end of the elastic member 502 is connected to the piston rod, and the other end of the elastic member 502 is connected to the damper body. If the damping assembly 503 is too soft, the main body will bounce up and down; if the damping assembly 503 is too hard, excessive resistance will be generated, hindering the normal operation of the spring. The adjustable damper can flexibly adjust the damping effect according to actual needs, can apply different damping forces to the spring, so as to achieve different shock-absorbing effects.
[0040] Embodiment 5
[0041] A shock-absorbing caster proposed in this embodiment is based on Embodiment 1 or Embodiment 2 or Embodiment 3 or Embodiment 4. In this embodiment, as Figure 1 and Figure 2 shown, the main bracket 1 includes a mounting plate 101, a first connecting plate 102 and a second connecting plate 103. The mounting plate 101 is horizontally arranged, and mounting holes are arranged on the mounting plate 101; the first connecting plate 102 and the second connecting plate 103 are respectively connected to the opposite sides of the mounting plate 101, the middle of the first lever plate 201 is rotatably connected to the first connecting plate 102, and the middle of the second lever plate 202 is rotatably connected to the second connecting plate 103; the support plate 4 is horizontally arranged, and the two ends of the support plate 4 are respectively connected to the first connecting plate 102 and the second connecting plate 103. When installing this shock-absorbing caster on a trolley or a cage car, the mounting plate 101 is abutted against the bottom of the trolley or the cage car, and this shock-absorbing caster is fixedly connected to the trolley or the cage car by passing bolts or other fixing parts through the mounting holes on the mounting plate 101.
[0042] The support plate 4 is integrally formed with the first connecting plate 102 and the second connecting plate 103. Integral forming can further reduce the wear of the support plate 4 during shock absorption and extend the service life of the shock-absorbing caster.
[0043] The shock absorption assembly 5 further includes a buffer pad 504. The buffer pad 504 is disposed on the support plate 4, and the lower end of the elastic member 502 is disposed on the buffer pad 504. The buffer pad 504 can reduce the impact load of the elastic member 502 on the support plate 4, increase the bearing strength and durability of the support plate 4, and thus extend the service life of the shock-absorbing caster.
[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.
[0045] Obviously, the above embodiments of the present invention are merely examples given for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. A shock-absorbing caster, characterized in that: The invention comprises a main support (1), a supporting support (2), a roller (3), a supporting plate (4) and a shock absorbing assembly (5); the middle part of the supporting support (2) is rotatably connected to the main support (1); the roller (3) is rotatably mounted on one end of the supporting support (2); the supporting plate (4) is mounted on the main support (1); the shock absorbing assembly (5) comprises a connecting rod (501), an elastic member (502) and a damping assembly (503); the connecting rod (501) and the elastic member (502) are both vertically arranged; the lower end of the connecting rod (501) is connected to the other end of the supporting support (2); the upper end of the elastic member (502) is connected to the upper end of the connecting rod (501); the lower end of the elastic member (502) is connected to the supporting plate (4); and the two ends of the elastic member (502) are respectively connected to the two ends of the damping assembly (503).
2. The shock-absorbing caster according to claim 1, characterized in that: The shock absorbing assembly (5) further comprises a buffer pad (504), wherein the buffer pad (504) is arranged on the support plate (4), and the lower end of the elastic member (502) is arranged on the buffer pad (504).
3. The shock-absorbing caster according to claim 2, characterized in that: The supporting bracket (2) comprises a first lever plate (201), a second lever plate (202) and a supporting rod (203); the first lever plate (201) and the second lever plate (202) are respectively arranged on opposite sides of the main bracket (1); the middle parts of the first lever plate (201) and the second lever plate (202) are both rotatably connected to the main bracket (1); and the two ends of the roller (3) are respectively rotatably mounted on the same end of the first lever plate (201) and the second lever plate (202). The two ends of the support rod (203) are respectively connected to the other ends of the first lever plate (201) and the second lever plate (202); the shock absorbing assembly (5) further comprises a connecting ring (505); the connecting ring (505) is sleeved on the support rod (203); the connecting ring (505) is connected to the lower end of the connecting rod (501); the connecting rod (501) passes through the support plate (4); and the connecting rod (501) is slidably connected to the support plate (4).
4. The shock-absorbing caster according to claim 3, characterized in that: The elastic member (502) is configured as a spring, and the elastic member (502) is sleeved on the connecting rod (501).
5. The shock-absorbing caster according to claim 4, characterized in that: The shock absorbing assembly (5) further comprises a limiting plate (506) and a nut (507); the limiting plate (506) is slidably arranged on the connecting rod (501); the upper end of the elastic member (502) is connected to the limiting plate (506); the upper end of the connecting rod (501) is provided with an external thread; the nut (507) is threadedly connected to the external thread at the upper end of the connecting rod (501); and the lower end of the nut (507) abuts against the limiting plate (506).
6. The shock-absorbing caster according to claim 5, characterized in that: The damping assembly (503) is configured as a damping block, the two ends of which are respectively connected to the limiting plate (506) and the supporting plate (4), and the two ends of the elastic member (502) are respectively connected to the two ends of the damping block.
7. The shock-absorbing caster according to claim 5, characterized in that: The damping assembly (503) is configured as an adjustable damper, the two ends of the adjustable damper are respectively connected to the limiting plate (506) and the supporting plate (4), and the two ends of the elastic member (502) are respectively connected to the two ends of the adjustable damper.
8. The shock absorbing caster according to any one of claims 1 to 7, characterized in that: The shock absorbing components (5) are provided with at least two groups.
9. The shock absorbing caster according to any one of claims 3 to 7, characterized in that: The main bracket (1) comprises a mounting plate (101), a first connecting plate (102) and a second connecting plate (103); the mounting plate (101) is arranged horizontally and is provided with a mounting hole; the first connecting plate (102) and the second connecting plate (103) are respectively connected to opposite sides of the mounting plate (101); the middle part of the first lever plate (201) is rotatably connected to the first connecting plate (102); the middle part of the second lever plate (202) is rotatably connected to the second connecting plate (103); the support plate (4) is arranged horizontally, and the two ends of the support plate (4) are respectively connected to the first connecting plate (102) and the second connecting plate (103).
10. The shock-absorbing caster according to claim 9, characterized in that: The support plate (4) is integrally formed with the first connecting plate (102) and the second connecting plate (103).