Air spring for low-frequency truck
The air spring design for heavy trucks uses a gas bag ring and wave rubber sleeve with a pressure-activated gas generator to prevent damage from rubber leaks, ensuring continued functionality and durability.
Patent Information
- Application Number
- CN202422541244.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-21
AI Technical Summary
In existing truck air springs, when the rubber parts leak, the upper cover plate and the lower cover plate are prone to collision and damage, and when the rubber parts break, the air pressure is quickly discharged, the spring structure is easily damaged, affecting use.
The airbag ring and corrugated rubber sleeve structure are designed. The airbag ring is buffered and protected when the rubber parts are leaked. The corrugated rubber sleeve expands and supports when the air pressure is discharged. Combined with the pressure sensor and the gas generator, a non-toxic gas support spring, a pinch rod and a pad ring assist support, clamp limit, battery power, and a check valve to control the airflow.
Effectively prevent collision damage when rubber parts leak, the airbag ring and corrugated rubber sleeve jointly support, extend the service life, reduce the impact of rubber parts when they burst, and ensure the short-term use and maintenance of the air spring.
Smart Images
Figure CN223105121U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air springs, in particular to a low-frequency air spring for trucks. Background Art
[0002] The air spring is filled with compressed air in a sealed container, and uses the compressibility of gas to achieve its elastic effect. The air spring has an ideal nonlinear elastic characteristic. After the height adjustment device is installed, the vehicle height does not change with the increase or decrease of the load, the spring stiffness can be designed to be lower, and the ride comfort is good; Patent No. CN201921899761.X discloses a heavy-duty truck curved air spring, which has a simple overall structure, convenient suspension device installation, and can realize automatic adjustment of the vehicle height, so that the vehicle height remains unchanged, achieving the lightweight of heavy trucks, reducing fuel consumption, and can be used at a lower frequency, improving the smoothness and comfort of truck driving, reducing the impact on the road, and has a strong sealing effect, easy assembly and installation, and a long service life; However, since the upper cover plate and the lower cover plate are supported and damped by rubber parts and air pressure, if the rubber parts leak, the upper cover plate and the lower cover plate are prone to collision with each other, and it is easy to cause direct damage between the two. For this reason, we propose a low-frequency air spring for trucks. Utility Model Content
[0003] In view of the problems in the prior art, the utility model provides a low-frequency air spring for trucks.
[0004] The technical solution adopted by the utility model to solve the technical problem is a low-frequency truck air spring, comprising a top seat and a base, a rubber piece is installed between the top seat and the base, and an air bag ring located on the inner periphery of the rubber piece is installed on the opposite side of the top seat and the base;
[0005] A conical seat is mounted on the top surface of the base, and a push rod is slidably mounted in the conical seat, a ring seat for limiting the push rod is threadedly mounted on the top surface of the conical seat, and a push block is mounted on one end of the push rod located at the conical seat, a pressure sensor corresponding to the push block is mounted in the conical seat, and a gas generator abutting the pressure sensor is mounted in the conical seat, air holes connected to the air outlet end of the gas generator are opened on the outer periphery of the conical seat, and there are multiple groups of air holes, and a corrugated rubber sleeve located on the outer periphery of the conical seat is mounted between the top seat and the base.
[0006] By adopting the above technical solution, when using the air spring for a truck, the two sets of airbag rings between the top seat and the bottom seat can provide protection and assist in buffering, facilitating the protection of the top seat and the bottom seat. When the rubber part between the top seat and the bottom seat leaks, the airbag rings can block and buffer the top seat and the bottom seat, and play a certain protective role, reducing the impact caused by the collision between the two, enabling personnel to continue to use the air spring briefly, and facilitating subsequent maintenance.
[0007] When the air spring for a truck has a rapid discharge of internal air pressure due to the direct rupture of the rubber part, the weight of the truck will press on the top seat, causing the top seat to quickly approach the bottom seat. And the top seat will press the ejector rod on the conical seat on the surface of the bottom seat, causing the ejector rod to retract into the conical seat and press the pressure sensor through the top block, making the pressure sensor operate and control the operation of the gas generator. The substances stored inside the gas generator will quickly decompose and generate a large amount of non-toxic and odorless gas, enabling the gas to be discharged from the air holes outside the conical seat, and the gas will enter the corrugated rubber sleeve between the top seat and the bottom seat. At the same time, the corrugated rubber sleeve is convenient for telescopic extension and will not affect the operation of the rubber part. The expanded corrugated rubber sleeve can replace the rubber part to support the top seat and the bottom seat, facilitating the protection of the two, and the expanded corrugated rubber sleeve can cooperate with the airbag rings to improve the protective effect of protecting the bottom seat and the top seat, and reduce the impact caused by the rupture or leakage of the air spring.
[0008] Specifically, a cushion ring is assembled inside the conical seat around the outer circumference of the ejector rod, and a spring for pushing the ejector rod to slide is assembled between the cushion ring and the ring seat.
[0009] By adopting the above technical solution, the cushion ring inside the conical seat is convenient for auxiliary support, and the spring on the top of the cushion ring is convenient for pushing the ejector rod, causing the ejector rod to drive the top block to separate from the pressure sensor. At the same time, when the ejector rod is subjected to pressure, the ejector rod can squeeze the spring and drive the top block to abut against the pressure sensor.
[0010] Specifically, annular grooves are formed between the ejector rod and the conical seat, and a clamp is clamped in the annular groove.
[0011] By adopting the above technical solution, the clamp is located in the annular groove and plays an insurance role, limiting the ejector rod in the conical seat and controlling the pressure received by the ejector rod. When the top seat directly impacts the airbag ring and hits the ejector rod under the weight of the truck, the clamp in the annular groove between the ejector rod and the conical seat will be deformed and broken under force, and then the ejector rod can easily squeeze the spring and drive the top block to press the pressure sensor, enabling the pressure sensor to operate.
[0012] Specifically, a ring sleeve is screwed and installed on the outer circumference of the conical seat, and a battery body electrically connected to the pressure sensor is assembled inside the ring sleeve.
[0013] By adopting the above technical solution, the collar is convenient to disassemble and assemble, and the battery body in the collar can supply power for the operation of the pressure sensor, enabling it to operate stably.
[0014] Specifically, a hose for guiding flow is assembled between the corrugated rubber sleeve and the airbag ring, and a check valve is assembled at one end of the hose communicating with the airbag ring.
[0015] By adopting the above technical solution, when the corrugated rubber sleeve expands, it will conduct gas into the airbag ring through the hose, which is convenient for increasing the pressure inside the airbag ring, enabling the airbag ring to cooperate with the corrugated rubber sleeve, so that the two can synchronously provide temporary support and protection between the top seat and the bottom seat, and the check valve is convenient for reducing the situation where the air pressure in the airbag ring flows back into the corrugated rubber sleeve, so that the airbag ring can operate independently without affecting the operation of the corrugated rubber sleeve.
[0016] Specifically, a support seat corresponding to the ejector rod is assembled on one side of the top seat close to the bottom seat.
[0017] By adopting the above technical solution, the support seat is convenient for improving the strength of the top seat and reducing the impact on the top seat when the support seat and the ejector rod collide with each other.
[0018] Compared with the prior art, the utility model has the following beneficial effects:
[0019] 1. Through the design of the rubber parts and the airbag rings in the technical solution of the present application, when the air springs for trucks are used, the two airbag rings between the top seat and the bottom seat can provide protection and auxiliary buffering, which is convenient for protecting the top seat and the bottom seat. When the rubber parts between the top seat and the bottom seat leak, the airbag rings can block and buffer the top seat and the bottom seat, and play a certain protective role, reducing the impact generated by the collision between the two, enabling personnel to continue to use the air springs briefly, which is convenient for subsequent maintenance.
[0020] 2. The technical solution of this application is designed with a conical seat, a push rod, a ring seat, a top block, a pressure sensor, a gas generator, air holes and a corrugated rubber sleeve. When the air spring used in a truck has a rapid air pressure discharge inside due to the direct rupture of the rubber part, the weight of the truck will press on the top seat, causing the top seat to quickly approach the bottom seat. And the top seat will press the push rod on the conical seat on the surface of the bottom seat, causing the push rod to retract into the conical seat and press the pressure sensor through the top block, making the pressure sensor operate and control the operation of the gas generator, so that the substances stored inside the gas generator are quickly decomposed and a large amount of non-toxic and odorless gas is generated, enabling the gas to be discharged from the air holes outside the conical seat, and the gas will enter the corrugated rubber sleeve between the top seat and the bottom seat. At the same time, the corrugated rubber sleeve is convenient for telescopic extension and will not affect the operation of the rubber part. The expanded corrugated rubber sleeve can replace the rubber part to support the top seat and the bottom seat, facilitating the protection of both, and the expanded corrugated rubber sleeve can be used in cooperation with the airbag ring, thereby improving the protection effect of protecting the bottom seat and the top seat and reducing the impact caused by the rupture or leakage of the air spring. Brief Description of the Drawings
[0021] The following further describes the present utility model in conjunction with the drawings and embodiments.
[0022] Figure 1 Is an axonometric view of the present utility model;
[0023] Figure 2 Is a schematic plan view of the connection structure between the bottom seat and the top seat of the present utility model;
[0024] Figure 3 Is a schematic view of the structure at part A of the connection structure between the bottom seat and the top seat of the present utility model;
[0025] In the figure: 1. Top seat; 2. Bottom seat; 3. Rubber part; 4. Airbag ring; 5. Conical seat; 6. Push rod; 7. Ring seat; 8. Top block; 9. Pressure sensor; 10. Gas generator; 11. Air holes; 12. Corrugated rubber sleeve; 13. Support seat; 14. Pad ring; 15. Spring; 16. Ring groove; 17. Clamp; 18. Ring sleeve; 19. Battery body; 20. Hose; 21. Check valve. Detailed Description of the Preferred Embodiments
[0026] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific embodiments.
[0027] Please refer to Figures 1-3, an embodiment of the present utility model provides a technical solution: a low-frequency air spring for a truck, which includes a top seat 1 and a bottom seat 2. A rubber part 3 is assembled between the top seat 1 and the bottom seat 2, and airbag rings 4 located on the inner circumference of the rubber part 3 are assembled on the opposite surfaces of the top seat 1 and the bottom seat 2; a conical seat 5 is assembled on the top surface of the bottom seat 2, and a top rod 6 is slidably installed in the conical seat 5. A retaining seat 7 for limiting the top rod 6 is screwed on the top surface of the conical seat 5, and a top block 8 is assembled at one end of the top rod 6 located in the conical seat 5. A pressure sensor 9 corresponding to the top block 8 is assembled in the conical seat 5, and a gas generator 10 abutted against the pressure sensor 9 is assembled in the conical seat 5. Air holes 11 communicating with the air outlet end of the gas generator 10 are formed on the outer circumference of the conical seat 5, and there are multiple groups of the air holes 11. A corrugated rubber sleeve 12 located on the outer circumference of the conical seat 5 is assembled between the top seat 1 and the bottom seat 2.
[0028] During use, when the air spring for the truck is in use, the two airbag rings 4 between the top seat 1 and the bottom seat 2 can provide protection and assist in buffering, which is convenient for protecting the top seat 1 and the bottom seat 2. When the rubber part 3 between the top seat 1 and the bottom seat 2 leaks, the airbag rings 4 can block and buffer the top seat 1 and the bottom seat 2, and play a certain protective role, reducing the impact caused by the collision between the two, enabling personnel to continue to use the air spring briefly for a short time, which is convenient for subsequent maintenance;
[0029] When the air spring for the truck has a rapid discharge of internal air pressure due to the direct rupture of the rubber part 3, the weight of the truck will press on the top seat 1, causing the top seat 1 to quickly approach the bottom seat 2, and the top seat 1 will press the top rod 6 on the conical seat 5 on the surface of the bottom seat 2, causing the top rod 6 to retract into the conical seat 5 and press the pressure sensor 9 through the top block 8, enabling the pressure sensor 9 to operate and control the operation of the gas generator 10, causing the substances stored inside the gas generator 10 to decompose rapidly and generate a large amount of non-toxic and odorless gas, enabling the gas to be discharged from the air holes 11 on the outer side of the conical seat 5, and the gas will enter the corrugated rubber sleeve 12 between the top seat 1 and the bottom seat 2. At the same time, the corrugated rubber sleeve 12 is convenient for stretching and extending, and will not affect the operation of the rubber part 3. The expanded corrugated rubber sleeve 12 can replace the rubber part 3 to support the top seat 1 and the bottom seat 2, which is convenient for protecting the two, and the expanded corrugated rubber sleeve 12 can cooperate with the airbag rings 4 to improve the protective effect of protecting the bottom seat 2 and the top seat 1, and reduce the impact caused by the rupture or leakage of the air spring.
[0030] As Figure 2 and Figure 3 shown, a cushion ring 14 located on the outer circumference of the top rod 6 is assembled in the conical seat 5, and a spring 15 for pushing the top rod 6 to slide and displace is assembled between the cushion ring 14 and the retaining seat 7.
[0031] During use, the packing ring 14 inside the conical seat 5 facilitates auxiliary support, and the spring 15 on the top of the packing ring 14 conveniently pushes the ejector rod 6, causing the ejector rod 6 to drive the ejector block 8 to separate from the pressure sensor 9. At the same time, when the ejector rod 6 is under pressure, the ejector rod 6 can squeeze the spring 15 and drive the ejector block 8 to abut against the pressure sensor 9.
[0032] As Figure 2 and Figure 3 shown, annular grooves 16 are provided between the ejector rod 6 and the conical seat 5, and a retaining ring 17 is clamped in the annular groove 16.
[0033] During use, the retaining ring 17 is located in the annular groove 16 and functions as a safeguard, limiting the ejector rod 6 in the conical seat 5 and controlling the pressure received by the ejector rod 6. When the top seat 1 is directly impacted by the weight of the truck on the airbag ring 4 and hits the ejector rod 6, the retaining ring 17 in the annular groove 16 between the ejector rod 6 and the conical seat 5 will be deformed and fractured under force. Then, the ejector rod 6 can easily squeeze the spring 15 and drive the ejector block 8 to press the pressure sensor 9, enabling the pressure sensor 9 to operate.
[0034] As Figure 2 and Figure 3 shown, a collar 18 is screwed and installed on the outer periphery of the conical seat 5, and a battery body 19 electrically connected to the pressure sensor 9 is assembled inside the collar 18.
[0035] During use, the collar 18 is convenient for disassembly and assembly, and the battery body 19 in the collar 18 can supply power for the operation of the pressure sensor 9, enabling it to operate stably.
[0036] As Figure 2 shown, a hose 20 for guiding flow is assembled between the corrugated rubber sleeve 12 and the airbag ring 4, and a check valve 21 is assembled at one end of the hose 20 communicating with the airbag ring 4.
[0037] During use, when the corrugated rubber sleeve 12 expands, it will conduct gas through the hose 20 into the airbag ring 4, facilitating an increase in the pressure inside the airbag ring 4, enabling the airbag ring 4 to cooperate with the corrugated rubber sleeve 12, and enabling the two to synchronously provide temporary support and protection between the top seat 1 and the base 2. Moreover, the check valve 21 is convenient for reducing the situation where the air pressure in the airbag ring 4 flows back into the corrugated rubber sleeve 12, so that the airbag ring 4 will not affect the operation of the corrugated rubber sleeve 12 during independent operation.
[0038] As Figure 2 shown, a support base 13 corresponding to the ejector rod 6 is assembled on one side of the top seat 1 close to the base 2.
[0039] During use, the support base 13 is convenient for enhancing the strength of the top seat 1 and reducing the impact on the top seat 1 when the support base 13 and the ejector rod 6 collide with each other.
[0040] The working principle and usage process of the present utility model: During use, first install the corresponding structural components in appropriate positions. When using the air spring for a truck, the two sets of airbag rings 4 between the top seat 1 and the bottom seat 2 can provide protection and assist in buffering, facilitating the protection of the top seat 1 and the bottom seat 2. When the rubber part 3 between the top seat 1 and the bottom seat 2 leaks, the airbag rings 4 can block and buffer the top seat 1 and the bottom seat 2, and play a certain protective effect, reducing the impact caused by the collision between the two, enabling personnel to continue to use the air spring briefly for subsequent maintenance. At the same time, when the air spring for the truck has a rapid discharge of internal air pressure due to the direct rupture of the rubber part 3, the weight of the truck will press on the top seat 1, causing the top seat 1 to quickly approach the bottom seat 2, and the top seat 1 will press the ejector rod 6 on the conical seat 5 on the surface of the bottom seat 2. At this time, the clamp 17 in the annular groove 16 between the ejector rod 6 and the conical seat 5 will be deformed and broken under force, and then the ejector rod 6 can easily squeeze the spring 15 and drive the top block 8 to press the pressure sensor 9, causing the pressure sensor 9 to operate and control the operation of the gas generator 10, enabling the substances stored inside the gas generator 10 to be quickly decomposed and generate a large amount of non-toxic and odorless gas, so that the gas can be discharged from the air holes 11 on the outside of the conical seat 5, and the gas will enter the corrugated rubber sleeve 12 between the top seat 1 and the bottom seat 2. At the same time, the corrugated rubber sleeve 12 is convenient for telescopic extension and will not affect the operation of the rubber part 3. The expanded corrugated rubber sleeve 12 can replace the rubber part 3 to support the top seat 1 and the bottom seat 2, facilitating the protection of the two. At the same time, when the corrugated rubber sleeve 12 expands, it will conduct the gas through the hose 20 into the airbag ring 4, facilitating an increase in the pressure inside the airbag ring 4, enabling the airbag ring 4 and the corrugated rubber sleeve 12 to cooperate with each other, so that the two can synchronously provide temporary support and protection between the top seat 1 and the bottom seat 2, thereby improving the protective effect of protecting the bottom seat 2 and the top seat 1 and reducing the impact caused by the rupture or leakage of the air spring.
[0041] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present utility model. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.
Claims
1. An air spring for a low-frequency truck, characterized in that, It includes a top seat (1) and a bottom seat (2). A rubber part (3) is assembled between the top seat (1) and the bottom seat (2), and airbag rings (4) located on the inner circumference of the rubber part (3) are assembled on the opposite surfaces of the top seat (1) and the bottom seat (2). A conical seat (5) is assembled on the top surface of the bottom seat (2), and a push rod (6) is slidably installed in the conical seat (5). A ring seat (7) for limiting the push rod (6) is screwed and installed on the top surface of the conical seat (5). A top block (8) is assembled at one end of the push rod (6) located in the conical seat (5). A pressure sensor (9) corresponding to the top block (8) is assembled in the conical seat (5), and a gas generator (10) abutted against the pressure sensor (9) is assembled in the conical seat (5). Air holes (11) communicating with the air outlet end of the gas generator (10) are formed on the outer circumference of the conical seat (5), and there are multiple groups of the air holes (11). A corrugated rubber sleeve (12) located on the outer circumference of the conical seat (5) is assembled between the top seat (1) and the bottom seat (2).
2. The air spring for low-frequency trucks according to claim 1, characterized in that, A cushion ring (14) located on the outer circumference of the push rod (6) is assembled in the conical seat (5), and a spring (15) for pushing the sliding displacement of the push rod (6) is assembled between the cushion ring (14) and the ring seat (7).
3. The air spring for low-frequency trucks according to claim 1, characterized in that, Ring grooves (16) are formed between the push rod (6) and the conical seat (5), and snap rings (17) are clamped in the ring grooves (16).
4. A low-frequency air spring for trucks according to claim 1, characterized in that A ring sleeve (18) is screwed and installed on the outer circumference of the conical seat (5), and a battery body (19) electrically connected to the pressure sensor (9) is assembled in the ring sleeve (18).
5. The air spring for low-frequency trucks according to claim 1, characterized in that, A hose (20) for guiding flow is assembled between the corrugated rubber sleeve (12) and the airbag ring (4), and a one-way valve (21) is assembled at one end of the hose (20) communicating with the airbag ring (4).
6. The air spring for a low-frequency truck according to claim 1, wherein, A support seat (13) corresponding to the push rod (6) is assembled on the surface of the top seat (1) close to the bottom seat (2).