Shock absorption suspension with adjustable shock absorption hardness for motor home
By designing an adjustable shock absorption suspension for RVs, the problem of traditional suspensions being unable to adjust shock absorption stiffness has been solved, improving ride comfort, extending vehicle lifespan, and reducing maintenance costs.
Patent Information
- Application Number
- CN202520560609.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Traditional fixed-stiffness motorhome suspension systems cannot adjust shock absorber stiffness, causing passengers to feel excessive minor road vibrations, affecting comfort, and potentially leading to fatigue damage to the vehicle body structure and shortening the vehicle's lifespan.
An adjustable damping suspension for motorhomes, including an adjustment component and a replacement component, was designed. The adjustment component adjusts the spring compression level, and the replacement component replaces the spring, enabling flexible adjustment of damping stiffness and replacement of springs.
It improves driving comfort, extends vehicle lifespan, reduces maintenance costs, and ensures stable and reliable shock absorption performance.
Smart Images
Figure CN223821391U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive shock absorption suspension technology, and in particular to a shock absorption suspension with adjustable shock absorption stiffness for motorhomes. Background Technology
[0002] As people's living standards improve, RV travel is becoming increasingly popular due to its combination of freedom and comfort. As a special type of vehicle that integrates living and transportation functions, RVs face more complex and diverse operating conditions than ordinary cars. RVs often need to travel on various road conditions, including highways, rural roads, and mountain dirt roads.
[0003] Traditional fixed-stiffness shock absorber suspensions typically have springs welded to the device, preventing adjustment of damping stiffness during use. This not only causes passengers to experience excessive minor road vibrations, affecting comfort, but also results in significant impact forces on the vehicle body under bumpy road conditions due to the inability to adjust damping stiffness according to actual conditions. Over time, this can lead to fatigue damage to the vehicle body structure and shorten its lifespan. Therefore, we propose a shock absorber suspension with adjustable damping stiffness for motorhomes to solve the above problems. Utility Model Content
[0004] The main purpose of this invention is to provide a shock-absorbing suspension with adjustable shock absorption stiffness for RVs, which can effectively solve the above problems.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] An adjustable shock-absorbing suspension for motorhomes includes a mounting base, a load-bearing beam located below the mounting base, a mounting bracket fixedly connected to the bottom of the load-bearing beam, an adjustment component located below the mounting base, and a replacement component located above the load-bearing beam.
[0007] Preferably, the adjustment assembly includes two connecting plates, each with a round rod fixedly connected to its bottom, and a spring contacting the bottom of the mounting base.
[0008] Preferably, the ends of the two connecting plates that are close to each other are fixedly connected to the outer surface of the mounting base, the bottom outer surfaces of the two round rods are threaded, and the top of the load-bearing beam has two circular recessed holes.
[0009] Preferably, the inner walls of the two circular recesses are slidably connected to the outer surface of the bottom of the circular rod on the same side, and the outer surfaces of the bottom of the two circular rods are threaded with rotating blocks, and the tops of the two rotating blocks are in close contact with the bottom of the mounting bracket.
[0010] Preferably, the bottom of the spring is in close contact with the top of the mounting bracket, and two limiting plates are fixedly connected to the top of the mounting bracket.
[0011] Preferably, the replacement component includes a cylinder, the outer surface of the top of the cylinder is fixedly connected to the inner wall of the bottom of the mounting base, hydraulic oil is provided inside the cylinder, and a circular plate is slidably connected to the inner wall of the cylinder.
[0012] Preferably, a sliding rod is fixedly connected to the bottom of the cylinder, the outer surface of the sliding rod is slidably connected to the inner wall of the bottom of the cylinder, and two circular holes are opened at the top of the circular plate.
[0013] Preferably, a circular recess is provided at the center of the top of the mounting bracket, the inner wall of the circular recess is threaded, and a connecting block is threaded to the inner wall of the circular recess. The inner wall of the connecting block is inserted into the outer surface of the bottom of the sliding rod.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. This utility model, by setting an adjustment component, specifically by rotating two rotating blocks clockwise to drive them to rotate on the outer surface of the corresponding round rod, can adjust the shock absorption stiffness of the device by changing the degree of compression of the spring under normal conditions. This reduces the slight shaking of the vehicle body when the RV is in motion, making the ride more stable and comfortable for the passengers. Moreover, the adjustable shock absorption stiffness suspension can adjust according to actual road conditions and driving conditions, thereby extending the overall service life of the vehicle.
[0016] 2. This utility model, by setting up a replacement component, specifically by removing the two rotating blocks and then removing the mounting bracket by rotating the connecting block counterclockwise, allows the spring to be directly disassembled and replaced. This not only ensures that the vehicle always has stable and reliable shock absorption performance, providing continuous comfort and safety for drivers and passengers, but also avoids excessive wear and tear on other components due to poor spring performance, thereby extending the service life of these components and reducing overall maintenance costs. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a front sectional view of the mounting base of this utility model;
[0019] Figure 3 This is a schematic diagram of the overall structure of the round rod of this utility model;
[0020] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle;
[0021] Figure 5 This is a front sectional view of the mounting bracket of this utility model.
[0022] In the diagram: 1. Mounting base; 11. Load-bearing beam; 12. Mounting frame; 2. Adjustment assembly; 21. Connecting plate; 22. Round rod; 221. Rotating block; 23. Spring; 24. Limiting plate; 3. Replacement assembly; 31. Cylinder; 311. Round plate; 312. Sliding rod; 32. Connecting block. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] Example 1, such as Figure 1-5 As shown, a shock-absorbing suspension with adjustable shock absorption stiffness for RVs includes a mounting base 1, a load-bearing beam 11 is provided below the mounting base 1, a mounting bracket 12 is fixedly connected to the bottom of the load-bearing beam 11, an adjustment component 2 is provided below the mounting base 1, and a replacement component 3 is provided above the load-bearing beam 11.
[0025] Specifically, in order to achieve the goal of adjusting the vibration damping stiffness of the device, please refer to... Figure 3 and Figure 4 In this embodiment, the adjustment component 2 includes two connecting plates 21, and a round rod 22 is fixedly connected to the bottom of each of the two connecting plates 21. A spring 23 is in contact with the bottom of the mounting base 1.
[0026] Further reading Figure 3 In this embodiment, the ends of the two connecting plates 21 that are close to each other are fixedly connected to the outer surface of the mounting base 1, the bottom outer surfaces of the two round rods 22 are threaded, and the top of the load-bearing beam 11 has two circular recessed holes.
[0027] Further reading Figure 4 In this embodiment, the inner walls of the two circular concave holes are slidably connected to the outer surface of the bottom of the circular rod 22 on the same side, and the outer surfaces of the bottom of the two circular rods 22 are threaded with rotating blocks 221, and the tops of the two rotating blocks 221 are in close contact with the bottom of the mounting bracket 12.
[0028] Further reading Figure 3 In this embodiment, the bottom of the spring 23 is in close contact with the top of the mounting bracket 12, and two limiting plates 24 are fixedly connected to the top of the mounting bracket 12.
[0029] During implementation, when the device is in use, the shock absorption stiffness of the device is adjusted according to the road conditions. First, the two rotating blocks 221 are rotated clockwise simultaneously, causing them to rotate on the outer surface of the corresponding round rods 22. As the rotating blocks 221 rotate clockwise, they move upward. When the rotating blocks 221 move upward, they cause the load-bearing beam 11 to slide upward on the outer surface of the two round rods 22. As the load-bearing beam 11 moves upward, it compresses the spring 23, causing it to deform. By changing the degree of compression of the spring 23 under normal conditions, the shock absorption stiffness of the device can be adjusted to adapt to different types of roads. When the RV is driving, it can reduce the slight shaking of the vehicle body, making the ride more stable and comfortable for the passengers. Moreover, the adjustable shock absorption stiffness suspension can reasonably disperse and buffer the impact force according to the actual road conditions and driving conditions, avoiding excessive stress on the vehicle body, thereby extending the overall service life of the vehicle.
[0030] Example 2: This example is based on Example 1, but with the addition of a replacement component.
[0031] Specifically, to enable the replacement of the spring, please refer to... Figure 2 and Figure 5 In this embodiment, the replacement component 3 includes a cylinder 31, the top outer surface of the cylinder 31 is fixedly connected to the bottom inner wall of the mounting base 1, hydraulic oil is provided inside the cylinder 31, and a circular plate 311 is slidably connected to the inner wall of the cylinder 31.
[0032] Further reading Figure 2 In this embodiment, a sliding rod 312 is fixedly connected to the bottom of the cylinder 31, and the outer surface of the sliding rod 312 is slidably connected to the inner wall of the bottom of the cylinder 31. Two circular holes are opened at the top of the circular plate 311.
[0033] Further reading Figure 5 In this embodiment, a circular recessed hole is provided at the center of the top of the mounting bracket 12. The inner wall of the circular recessed hole is threaded and a connecting block 32 is threadedly connected to the inner wall of the circular recessed hole. The inner wall of the connecting block 32 is inserted into the bottom outer surface of the sliding rod 312.
[0034] During implementation, after prolonged operation, the spring 23 will gradually experience elastic fatigue due to continuous compression and tension, affecting the vehicle's driving comfort and handling stability. By rotating the two rotating blocks 221 counterclockwise, the spring 23 can be moved downwards on the outer surface of the corresponding round rod 22. Once the rotating blocks 221 have moved to a certain position, they can be removed. By rotating the connecting block 32 counterclockwise, the connecting block 32 can be separated from the inner wall of the mounting bracket 12, allowing the mounting bracket 12 to be removed directly. By removing the mounting bracket 12, the spring 23 can be directly disassembled and replaced. This not only ensures that the vehicle always has stable and reliable shock absorption performance, providing continuous comfort and safety for passengers, but also avoids excessive wear and tear on other components due to poor spring performance, thereby extending the service life of these components and reducing overall maintenance costs.
[0035] The working principle of this utility model is as follows: When the device is in use, the shock absorption stiffness of the device is adjusted according to the road conditions. First, the two rotating blocks 221 are rotated clockwise simultaneously, causing them to rotate on the outer surface of the corresponding round rods 22. As the rotating blocks 221 rotate clockwise, they move upward. When the rotating blocks 221 move upward, they cause the load-bearing beam 11 to slide upward on the outer surface of the two round rods 22. As the load-bearing beam 11 moves upward, it compresses the spring 23, causing it to deform. By changing the degree of compression of the spring 23 under normal conditions, the shock absorption stiffness of the device can be adjusted, making it adaptable to different types of roads. When the RV is driving, it can reduce the slight shaking of the vehicle body, making the driver and passengers feel more stable and comfortable. Moreover, the adjustable shock absorption stiffness suspension can reasonably disperse and buffer the impact force according to the actual road conditions and driving conditions, avoiding excessive stress on the vehicle body, thereby extending the overall service life of the vehicle.
[0036] When the device is in use, the sliding rod 312 will drive the circular plate 311 to slide up and down in the inner wall of the cylinder 31. Since there is hydraulic oil inside the cylinder 31, when the circular plate 311 slides, the hydraulic oil at the top will flow into the bottom of the circular plate 311 through the circular hole opened at the top. When the spring 23 rebounds, the hydraulic oil will flow back to the top of the circular plate 311 through the circular hole. Since the diameter of the circular hole is small, it can prevent the circular plate 311 from sliding back quickly, thus achieving a shock absorption effect.
[0037] After prolonged operation, the spring 23 will gradually experience elastic fatigue due to continuous compression and tension during long-term use, affecting the vehicle's driving comfort and handling stability. By rotating the two rotating blocks 221 counterclockwise, the spring 23 can be moved downwards on the outer surface of the corresponding round rod 22. Once the rotating blocks 221 have moved to a certain position, they can be removed. By rotating the connecting block 32 counterclockwise, the connecting block 32 can be separated from the inner wall of the mounting bracket 12, allowing the mounting bracket 12 to be removed directly. By removing the mounting bracket 12, the spring 23 can be directly disassembled and replaced. This not only ensures that the vehicle always has stable and reliable shock absorption performance, providing continuous comfort and safety for passengers, but also avoids excessive wear and tear on other components due to poor spring performance, thereby extending the service life of these components and reducing overall maintenance costs.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A shock-absorbing suspension with adjustable shock absorption stiffness for motorhomes, comprising a mounting base (1), a load-bearing beam (11) disposed below the mounting base (1), and a mounting bracket (12) fixedly connected to the bottom of the load-bearing beam (11), characterized in that: An adjustment component (2) is provided below the mounting base (1), and a replacement component (3) is provided above the load-bearing beam (11); The adjustment assembly (2) includes two connecting plates (21), and a round rod (22) is fixedly connected to the bottom of each of the two connecting plates (21). A spring (23) is in contact with the bottom of the mounting base (1).
2. The adjustable shock-absorbing suspension for RVs according to claim 1, characterized in that: The two connecting plates (21) are fixedly connected to the outer surface of the mounting base (1) at their close ends. The bottom outer surfaces of the two round rods (22) are threaded. The top of the load-bearing beam (11) has two circular recesses.
3. The adjustable shock-absorbing suspension for RVs according to claim 2, characterized in that: The inner walls of the two circular recesses are slidably connected to the outer bottom surface of the circular rod (22) on the same side. The outer bottom surface of the two circular rods (22) is threaded with rotating blocks (221). The tops of the two rotating blocks (221) are in close contact with the bottom of the mounting bracket (12).
4. The adjustable shock-absorbing suspension for RVs according to claim 3, characterized in that: The bottom of the spring (23) is in close contact with the top of the mounting bracket (12), and two limiting plates (24) are fixedly connected to the top of the mounting bracket (12).
5. The adjustable shock-absorbing suspension for RVs according to claim 1, characterized in that: The replacement component (3) includes a cylinder (31), the top outer surface of the cylinder (31) is fixedly connected to the bottom inner wall of the mounting base (1), the cylinder (31) is filled with hydraulic oil, and a circular plate (311) is slidably connected to the inner wall of the cylinder (31).
6. The adjustable shock-absorbing suspension for RVs according to claim 5, characterized in that: The bottom of the cylinder (31) is fixedly connected to a sliding rod (312), the outer surface of the sliding rod (312) is slidably connected to the inner wall of the bottom of the cylinder (31), and two round holes are opened on the top of the circular plate (311).
7. A shock-absorbing suspension with adjustable shock absorption stiffness for RVs according to claim 6, characterized in that: The mounting bracket (12) has a circular recessed hole at the top center. The inner wall of the circular recessed hole is threaded and a connecting block (32) is threaded to the inner wall of the circular recessed hole. The inner wall of the connecting block (32) is inserted into the bottom outer surface of the sliding rod (312).