Air spring structure with adjustable mounting position
By introducing mounting rails and limiting structures into the air spring structure, combined with buffer pads and reinforcing layers, the problem of air spring misalignment when the vehicle wheelbase changes is solved, achieving stable fixation and efficient shock absorption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO BORUI ZHIYUAN ANTI-VIBRATION TECH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-26
AI Technical Summary
Existing air spring structures are prone to shifting when the vehicle wheelbase changes, affecting shock absorption performance.
Design an air spring structure with adjustable installation position. By combining mounting rails, threaded sliders, support rods, telescopic plates, and positioning seats, the air spring can be stably fixed to the mounting seat. The limit rod and limit groove are used to prevent displacement. At the same time, the air spring's pressure resistance and shock absorption effect are improved by using buffer pads and reinforcing layers.
The air spring's position adjustment stability is achieved, preventing displacement. The design of the buffer pad and reinforcement layer reduces excessive air spring compression, protects the piston rod, and improves shock absorption.
Smart Images
Figure CN224283320U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of air spring technology, and in particular relates to an air spring structure with an adjustable installation position. Background Technology
[0002] An air spring is made by filling a sealed container with compressed air, utilizing the compressibility of gas to achieve its elastic effect. Air springs have ideal non-linear elastic characteristics. With the addition of a height adjustment device, the vehicle height does not change with the increase or decrease of load. The spring stiffness can be designed to be lower, resulting in good ride comfort.
[0003] For example, patent CN220869947U discloses an air spring structure and a vehicle. This air spring structure includes a main cavity assembly, a secondary cavity assembly, and a connecting assembly. The first connecting end of the main cavity assembly is used to connect to the vehicle body, and the second connecting end is used to connect to the lower control arm of the suspension. The main cavity assembly has a main chamber. The secondary cavity assembly includes a secondary cavity housing and at least two control components. The secondary cavity housing contains at least two secondary chambers, and the control components are correspondingly arranged within each secondary chamber. The connecting assembly includes a connecting pipe and a connecting member. The connecting member has an air passage that communicates with the main chamber through the connecting pipe. Both ends of the air passage are connected to the two secondary chambers respectively. The control components control the flow of air between the secondary chambers and the air passage. Because the main cavity assembly and secondary cavity assembly are separate and connected by the connecting assembly, the secondary cavity assembly does not occupy axial installation space, thus reducing the axial installation space.
[0004] Existing air spring structures suffer from spring misalignment due to changes in vehicle wheelbase during use, affecting their damping performance. Therefore, we propose an air spring structure with adjustable mounting position. Utility Model Content
[0005] The purpose of this invention is to address the aforementioned technical problems by providing an air spring structure with an adjustable installation position, enabling linear adjustment of the air spring.
[0006] In view of this, the present invention provides an air spring structure with adjustable installation position, including a mounting slide rail, a mounting base slidably connected to the top of the mounting slide rail, a screw provided on the inner wall of the mounting base, a threaded slider threadedly connected to the outer wall of the screw, support rods screwed to both ends of the threaded slider, a telescopic plate screwed to one end of the support rod, a limit rod fixedly connected to the inner wall of the telescopic plate, a positioning seat fixedly connected to the bottom end of the telescopic plate, a limit groove provided at the connection between the mounting base and the positioning seat, a positioning block fixedly connected to the outer wall of the positioning seat, and a positioning hole provided at the connection between the mounting slide rail and the positioning block;
[0007] An air spring assembly, located at the top of a mounting base, is used for shock absorption in a vehicle.
[0008] Based on the above structure, the staff pushes the mounting base to move it to the predetermined position on the mounting slide rail. Then, the threaded slider drives the telescopic plate to slide along the outer wall of the limiting rod through the support rod. The sliding of the telescopic plate drives the positioning base to slide along the groove of the limiting groove, which helps to improve the stability of the positioning base. The sliding of the positioning base drives the positioning block to engage with the positioning hole, realizing the fixing operation of the mounting base and preventing the mounting base from shifting after adjustment.
[0009] Preferably, the limiting rod and the limiting groove are parallel. In this embodiment, the threaded slider drives the telescopic plate to slide along the outer wall of the limiting rod through the support rod. The sliding of the telescopic plate drives the positioning seat to slide along the groove of the limiting groove, which helps to improve the stability of the positioning seat.
[0010] Preferably, the mounting base forms a fixed structure with the mounting slide rail through the positioning block and positioning hole. In this embodiment, the positioning base slides to drive the positioning block to engage with the positioning hole, thereby fixing the mounting base and preventing it from shifting after adjustment.
[0011] Preferably, the positioning holes are evenly distributed along the outer wall of the mounting slide rail. In this embodiment, it is convenient for the staff to push the mounting base to move it to the predetermined position on the mounting slide rail.
[0012] Preferably, the air spring assembly includes:
[0013] The mounting base has a fixed base at its top, and a limiting cylinder is fixedly connected to the top of the base. A piston rod passes through the inner wall of the limiting cylinder. A buffer pad is fixedly connected to the inner wall of the limiting cylinder below the piston rod. A top cover plate is fixedly connected to the outer wall of the piston rod. An airbag inner layer is provided at the connection between the base and the top cover plate. A reinforcing layer is sleeved on the outside of the airbag inner layer. An airbag outer layer is sleeved on the outside of the reinforcing layer. A protective sleeve is sleeved on the outside of the airbag outer layer. In this embodiment, when the vehicle engine seat vibrates, the vehicle engine seat drives the piston rod to slide along the inner wall of the limiting cylinder. By setting the buffer pad, the airbag of the air spring is prevented from being over-compressed, which could damage the piston rod. At the same time, the movement of the piston rod drives the top cover plate to move relative to the base, compressing the gas in the airbag inner layer, thereby converting the kinetic energy generated by the vibration of the vehicle engine seat into the heat energy of the gas, thus realizing the shock absorption operation of the vehicle engine seat.
[0014] Preferably, the central axis of the piston rod coincides with the central axis of the buffer pad. In this embodiment, by setting the buffer pad, the air spring's air bladder is prevented from being over-compressed, which could damage the piston rod.
[0015] Preferably, the reinforcing layer has a mesh-like shape, and the protective sleeve has a wavy cross-section. In this embodiment, by setting a mesh-like reinforcing layer, the airbag's pressure resistance is improved, and by setting a wavy protective sleeve, the airbag is prevented from being scratched.
[0016] The beneficial effects of this utility model are:
[0017] 1. The adjustable air spring structure, with its positioning block and positioning hole, allows the operator to push the mounting seat to a predetermined position on the mounting slide rail. Then, the threaded slider drives the telescopic plate to slide along the outer wall of the limiting rod via the support rod. The sliding of the telescopic plate causes the positioning seat to slide along the groove of the limiting groove, which helps to improve the stability of the positioning seat. The sliding of the positioning seat causes the positioning block to engage with the positioning hole, realizing the fixing operation of the mounting seat and preventing the mounting seat from shifting after adjustment.
[0018] 2. The adjustable air spring structure allows the vehicle engine block to slide along the inner wall of the limiting cylinder when the vehicle engine block vibrates. By setting a buffer pad, the air spring's airbag is prevented from being over-compressed, which could damage the piston rod. At the same time, the movement of the piston rod causes the upper cover plate to move relative to the base, compressing the gas in the inner layer of the airbag. This converts the kinetic energy generated by the vibration of the vehicle engine block into the heat energy of the gas, thus achieving shock absorption of the vehicle engine block. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the internal structure of the mounting base of this utility model;
[0021] Figure 3 This is a schematic diagram of the positioning block and positioning hole structure of this utility model;
[0022] Figure 4 This is a cross-sectional view of the connection between the base and the top cover of this utility model.
[0023] The markings in the diagram are as follows:
[0024] 1. Mounting rail; 2. Mounting base; 3. Screw; 4. Threaded slider; 5. Support rod; 6. Telescopic plate; 7. Limiting rod; 8. Positioning seat; 9. Limiting groove; 10. Positioning block; 11. Positioning hole; 12. Base; 13. Limiting cylinder; 14. Piston rod; 15. Buffer pad; 16. Top cover plate; 17. Inner layer of airbag; 18. Reinforcing layer; 19. Outer layer of airbag; 20. Protective sleeve. Detailed Implementation
[0025] The following is in conjunction with the appendix Figure 1 - Figure 4This application will be described in further detail.
[0026] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0027] This application discloses an air spring structure with an adjustable installation position, including an installation slide rail 1, an installation seat 2 slidably connected to the top of the installation slide rail 1, a screw 3 provided on the inner wall of the installation seat 2, a threaded slider 4 threadedly connected to the outer wall of the screw 3, support rods 5 screwed to both ends of the threaded slider 4, a telescopic plate 6 screwed to one end of the support rod 5, a limit rod 7 fixedly connected to the inner wall of the telescopic plate 6, a positioning seat 8 fixedly connected to the bottom end of the telescopic plate 6, a limit groove 9 provided at the connection between the installation seat 2 and the positioning seat 8, a positioning block 10 fixedly connected to the outer wall of the positioning seat 8, and a positioning hole 11 provided at the connection between the installation slide rail 1 and the positioning block 10.
[0028] An air spring assembly is located at the top of mounting base 2 and is used for shock absorption in the vehicle.
[0029] Based on the above structure, the staff pushes the mounting base 2 to move it to the predetermined position on the mounting slide rail 1. Then, the threaded slider 4 drives the telescopic plate 6 to slide along the outer wall of the limiting rod 7 through the support rod 5. The sliding of the telescopic plate 6 drives the positioning base 8 to slide along the groove of the limiting groove 9, which helps to improve the stability of the positioning base 8. The sliding of the positioning base 8 drives the positioning block 10 to engage with the positioning hole 11, realizing the fixing operation of the mounting base 2 and preventing the mounting base 2 from shifting after adjustment.
[0030] In one embodiment, the limiting rod 7 and the limiting groove 9 are parallel.
[0031] In this embodiment, the threaded slider 4 drives the telescopic plate 6 to slide along the outer wall of the limiting rod 7 via the support rod 5. The sliding of the telescopic plate 6 drives the positioning seat 8 to slide along the groove of the limiting groove 9, which helps to improve the stability of the positioning seat 8.
[0032] In one embodiment, the mounting base 2 forms a fixed structure with the mounting slide rail 1 through the positioning block 10 and the positioning hole 11.
[0033] In this embodiment, the positioning seat 8 slides to drive the positioning block 10 to engage with the positioning hole 11, thereby fixing the mounting seat 2 and preventing the mounting seat 2 from shifting after adjustment.
[0034] In one embodiment, the positioning holes 11 are equidistantly distributed along the outer wall of the mounting slide rail 1.
[0035] In this embodiment, it is convenient for staff to push the mounting base 2 to move it to a predetermined position on the mounting slide rail 1.
[0036] In one embodiment, the air spring assembly includes:
[0037] The base 12 is fixedly connected to the top of the mounting base 2. The top of the base 12 is fixedly connected to the limit cylinder 13. The inner wall of the limit cylinder 13 is penetrated by a piston rod 14. The bottom of the piston rod 14 is provided with a buffer pad 15 fixedly connected to the inner wall of the limit cylinder 13. The outer wall of the piston rod 14 is fixedly connected to the top cover plate 16. The connection between the base 12 and the top cover plate 16 is provided with an airbag inner layer 17. The outer side of the airbag inner layer 17 is sleeved with a reinforcing layer 18. The outer side of the reinforcing layer 18 is sleeved with an airbag outer layer 19. The outer side of the airbag outer layer 19 is sleeved with a protective sleeve 20.
[0038] In this embodiment, when the vehicle base vibrates, the vehicle base drives the piston rod 14 to slide along the inner wall of the limiting cylinder 13. By setting the buffer pad 15, the air spring's airbag is prevented from being over-compressed, which could damage the piston rod 14. At the same time, the movement of the piston rod 14 drives the upper cover plate 16 to move relative to the base 12, compressing the gas in the inner layer 17 of the airbag, thereby converting the kinetic energy generated by the vibration of the vehicle base into the heat energy of the gas, thus realizing the shock absorption operation of the vehicle base.
[0039] In one embodiment, the central axis of the piston rod 14 coincides with the central axis of the buffer pad 15.
[0040] In this embodiment, by setting a buffer pad 15, the air spring's air bladder is prevented from being over-compressed, which could damage the piston rod 14.
[0041] In one embodiment, the reinforcing layer 18 has a mesh-like shape, and the protective sleeve 20 has a wavy cross-section.
[0042] In this embodiment, the mesh reinforcement layer 18 is provided to improve the pressure resistance of the airbag, and the protective sleeve 20 with a wavy cross-section is provided to prevent the airbag from being scratched.
[0043] In this embodiment, the adjustable air spring structure is used as follows: First, the operator installs the mounting rail 1 onto the vehicle base using bolts. Then, the operator pushes the mounting seat 2 to move it to the predetermined position on the mounting rail 1. Next, the operator rotates the screw 3. The rotation of the screw 3 drives the two sets of support rods 5 to move synchronously through the threaded slider 4. The threaded slider 4 then drives the telescopic plate 6 to slide along the outer wall of the limiting rod 7 through the support rods 5. The sliding of the telescopic plate 6 drives the positioning seat 8 to slide along the groove of the limiting groove 9, which helps to improve the stability of the positioning seat 8. The sliding of the positioning seat 8 drives the positioning block 10 to engage with the positioning hole 11, realizing the fixing operation of the mounting seat 2 and preventing the mounting seat 2 from shifting after adjustment.
[0044] Next, when the vehicle engine seat vibrates, the vehicle engine seat drives the piston rod 14 to slide along the inner wall of the limiting cylinder 13. By setting the buffer pad 15, the air spring's airbag is prevented from being over-compressed, which could damage the piston rod 14. At the same time, the movement of the piston rod 14 drives the upper cover plate 16 to move relative to the base 12, compressing the gas in the inner layer 17 of the airbag, thereby converting the kinetic energy generated by the vibration of the vehicle engine seat into the heat energy of the gas, thus realizing the shock absorption operation of the vehicle engine seat.
[0045] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An air spring structure with an adjustable installation position, characterized in that, include: The mounting slide rail (1) is slidably connected to the top of the mounting slide rail (1) and the mounting base (2) is provided with a screw (3) on the inner wall of the mounting base (2). The screw (3) is threadedly connected to the outer wall of the screw (3) and the threaded slider (4) is threadedly connected to both ends of the threaded slider (4). The support rod (5) is screwed to one end of the support rod (5) and the telescopic plate (6) is threadedly connected to one end of the telescopic plate (6). The inner wall of the telescopic plate (6) is fixedly connected to a limit rod (7). The bottom end of the telescopic plate (6) is fixedly connected to a positioning seat (8). The connection between the mounting base (2) and the positioning seat (8) is provided with a limit groove (9). The outer wall of the positioning seat (8) is fixedly connected to a positioning block (10). The connection between the mounting slide rail (1) and the positioning block (10) is provided with a positioning hole (11). An air spring assembly is located at the top of the mounting base (2) and is used for shock absorption of the vehicle.
2. The air spring structure with adjustable installation position according to claim 1, characterized in that: The limiting rod (7) and the limiting groove (9) are parallel.
3. The air spring structure with adjustable installation position according to claim 1, characterized in that: The mounting base (2) forms a fixed structure with the mounting slide rail (1) through the positioning block (10) and the positioning hole (11).
4. The air spring structure with adjustable installation position according to claim 1, characterized in that: The positioning holes (11) are equidistantly distributed along the outer wall of the mounting slide rail (1).
5. The air spring structure with adjustable installation position according to claim 1, characterized in that: The air spring assembly includes: The base (12) is fixedly connected to the top of the mounting base (2). The top of the base (12) is fixedly connected to the limiting cylinder (13). The inner wall of the limiting cylinder (13) is penetrated by a piston rod (14). A buffer pad (15) is fixedly connected to the inner wall of the limiting cylinder (13) below the piston rod (14). The outer wall of the piston rod (14) is fixedly connected to an upper cover plate (16). An airbag inner layer (17) is provided at the connection between the base (12) and the upper cover plate (16). An reinforcing layer (18) is sleeved on the outside of the airbag inner layer (17). An airbag outer layer (19) is sleeved on the outside of the reinforcing layer (18). A protective sleeve (20) is sleeved on the outside of the airbag outer layer (19).
6. The air spring structure with adjustable installation position according to claim 5, characterized in that: The central axis of the piston rod (14) coincides with the central axis of the buffer pad (15).
7. The air spring structure with adjustable installation position according to claim 5, characterized in that: The reinforcing layer (18) has a mesh-like shape, and the protective sleeve (20) has a wavy cross-section.