A support for an air suspension

Abstract

The utility model discloses a kind of supports for air suspension, applied in air suspension support technical field, including main shaft;The utility model is hinged with first connecting seat and second connecting seat on main shaft and auxiliary shaft, and first air spring mounting sleeve and second air spring mounting sleeve of the first air spring mounting sleeve and the second air spring mounting sleeve of air spring installation are assembled between first connecting seat and second connecting seat, when air spring is installed between first air spring mounting sleeve and second air spring mounting sleeve, air spring stretches and drives second air spring mounting sleeve from first air spring mounting sleeve internal position change, make the angle of first connecting seat and second connecting seat and main shaft and auxiliary shaft change, air spring is always in linear motion state inside first air spring mounting sleeve and second air spring mounting sleeve, avoid spring unilateral forced stretching, the state of other side limited, keep the consistency of spring capsule circumferential direction telescopic amount.

Description

Technical Field

[0001] This utility model belongs to the field of air suspension support technology, and specifically relates to an air suspension support. Background Technology

[0002] In the field of air spring support equipment, such as automotive suspension, mechanical shock absorber supports, and medical lifting platforms, the expansion and contraction of air springs needs to be transmitted to the load end through a matching bracket to achieve the function of adjusting the support height or adapting the angle. In the current mainstream design, the bracket and air spring are mostly connected in a single-sided or asymmetrical way. That is, when the air spring is inflated and extended, the side closer to the fixed end of the bracket is constrained and cannot deform synchronously. Only the free end side unfolds, thus causing the bracket to undergo a "single-sided driven" angle change. This structure has obvious defects in practical applications: First, the load is unbalanced and the stability is poor. Under unilateral deployment, the force on the support is concentrated on the connection between the air spring and the support on one side. The load weight cannot be evenly distributed, which can easily lead to local stress overload of the support, resulting in deformation, jamming or even breakage. Especially in scenarios with heavy loads or dynamic loads, the safety risk is significantly increased.

[0003] Secondly, the wear and tear on air springs is accelerated, and their lifespan is shortened. The state of forced extension on one side of the spring and restriction on the other side will cause an excessive difference in the circumferential expansion and contraction of the spring bladder. Local areas will be under excessive stretching or compression for a long time, and the bladder material is prone to fatigue wrinkles, aging and cracking, which will significantly shorten the replacement cycle and service life of the air spring. Utility Model Content

[0004] The purpose of this utility model is to provide a support for air suspension, which has the advantage of improving the uniformity of force distribution.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an air suspension support, comprising a main shaft, a first connecting beam symmetrically fixedly connected to the surface of the main shaft, a support beam hinged to one end of the first connecting beam, a first connecting seat symmetrically sleeved on the surface of the main shaft, a second connecting seat provided on the top of the first connecting seat, a secondary shaft rotatably connected between the two second connecting seats, a second connecting beam fixedly sleeved at both ends of the secondary shaft, a first air spring mounting sleeve fixedly connected to the top of the first connecting seat, and a second air spring mounting sleeve slidably connected to the bottom of the second connecting seat.

[0006] The above technical solution is as follows: This utility model has a first connecting seat and a second connecting seat hinged to the main shaft and the secondary shaft respectively. A first air spring mounting sleeve and a second air spring mounting sleeve are assembled between the first connecting seat and the second connecting seat to install an air spring. When the air spring is installed between the first air spring mounting sleeve and the second air spring mounting sleeve, when the air spring extends, it causes the second air spring mounting sleeve to change position from inside the first air spring mounting sleeve. This causes the angle between the first connecting seat and the second connecting seat and the main shaft and the secondary shaft to change. The air spring is always in a linear motion state inside the first air spring mounting sleeve and the second air spring mounting sleeve, avoiding the state of forced extension on one side of the spring and restriction on the other side. This maintains the consistency of the circumferential extension and contraction of the spring body and improves the service life of the air spring.

[0007] The present invention is further configured such that a limiting guide block is symmetrically mounted on the surface of the second air spring mounting sleeve, and a limiting guide groove is provided inside the first air spring mounting sleeve that is slidably connected to the limiting guide block.

[0008] The above technical solution involves a sliding engagement between the limiting guide block and the limiting guide groove. On the one hand, this guides the sliding of the first and second air spring mounting sleeves, ensuring smooth sliding along a specific direction and making the position change of the air spring more precise and controllable during operation. On the other hand, it limits the sliding range of the second air spring mounting sleeve, preventing excessive deviation or detachment from the first air spring mounting sleeve during sliding, thus ensuring the stability of the air spring mounting structure and guaranteeing the normal operation of the air suspension system.

[0009] The present invention is further configured such that the surface of the main shaft is symmetrically fitted with locking blocks, and the interior of the first connecting seat is provided with locking grooves that are slidably connected to the locking blocks.

[0010] The above technical solution is adopted: by the sliding engagement of the locking block in the locking groove, the movement direction of the first connecting seat relative to the main shaft is restricted. The first connecting seat can be rotated on the main shaft for rotation limit, so as to avoid movement.

[0011] The present invention is further configured such that one end of the support beam and one end of the second connecting beam are both fixedly connected to a mounting base.

[0012] The above technical solution involves fixing mounting seats to one end of the support beam and one end of the second connecting beam. The main function of this structural design is to provide a connection interface between the air suspension support and other vehicle components, such as the frame structure. Through the mounting seats, the support beam, the second connecting beam and the vehicle frame can be easily and securely connected using bolts and other fasteners. This enables the support to transmit force and support components in the air suspension system, ensuring the structural stability and operational reliability of the entire suspension system.

[0013] The present invention is further configured such that an axle fixing seat is fitted on the top of the first connecting beam.

[0014] The above technical solution provides a reliable mounting position for the axle, and securely installs the axle on the axle mounting bracket by bolts or other connection methods, ensuring a stable connection between the axle and the air suspension bracket, preventing loosening or detachment during vehicle operation, and maintaining the structural integrity of the entire suspension system.

[0015] The present invention is further configured such that a telescopic limiting rod fixing seat is fixedly connected to the top of the first connecting beam.

[0016] The above technical solution is used to install a telescopic limiting structure between the first connecting beam and the frame to improve the stability of the first connecting beam during movement.

[0017] In summary, this utility model has the following beneficial effects: This invention features a first connecting seat and a second connecting seat hinged to the main shaft and the secondary shaft, respectively. A first air spring mounting sleeve and a second air spring mounting sleeve are fitted between the first and second connecting seats to mount an air spring. When the air spring is installed between the first and second air spring mounting sleeves, its extension causes the second air spring mounting sleeve to change position from inside the first air spring mounting sleeve. This changes the angle between the first and second connecting seats and the main and secondary shafts. The air spring, within the first and second air spring mounting sleeves, remains in a linear motion state, preventing forced extension on one side and restriction on the other, maintaining consistency in the circumferential expansion and contraction of the spring body, and improving the service life of the air spring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial exploded view of the structure of this utility model; Figure 3 This is a schematic diagram of the main shaft structure of this utility model.

[0019] Reference numerals in the attached drawings: 1. Main shaft; 2. First connecting beam; 3. First connecting seat; 4. Second connecting seat; 5. Sub-shaft; 6. Second connecting beam; 7. First air spring mounting sleeve; 8. Second air spring mounting sleeve; 9. Limiting guide block; 10. Limiting guide groove; 11. Locking block; 12. Locking groove; 13. Mounting seat; 14. Axle fixing seat; 15. Telescopic limiting rod fixing seat; 16. Support beam. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Example 1: refer to Figure 1 , Figure 2 and Figure 3 An air suspension support includes a main shaft 1. A first connecting beam 2 is symmetrically fixedly connected to the surface of the main shaft 1. A support beam 16 is hinged to one end of the first connecting beam 2. A first connecting seat 3 is symmetrically sleeved on the surface of the main shaft 1. A second connecting seat 4 is disposed on the top of the first connecting seat 3. A secondary shaft 5 is rotatably connected between the two second connecting seats 4. A second connecting beam 6 is fixedly sleeved at both ends of the secondary shaft 5. A first air spring mounting sleeve 7 is fixedly connected to the top of the first connecting seat 3. A second air spring mounting sleeve 8, which is slidably connected to the first air spring mounting sleeve 7, is fixedly connected to the bottom of the second connecting seat 4. By hinged the first connecting seat 3 and the second connecting seat 4 to the main shaft 1 and the secondary shaft 5 respectively, a first connecting beam 16 is formed. A first air spring mounting sleeve 7 and a second air spring mounting sleeve 8 are assembled between the seat 3 and the second connecting seat 4. When the air spring is installed between the first air spring mounting sleeve 7 and the second air spring mounting sleeve 8, when the air spring extends, it causes the second air spring mounting sleeve 8 to change position from inside the first air spring mounting sleeve 7, causing the angle between the first connecting seat 3 and the second connecting seat 4 and the main shaft 1 and the secondary shaft 5 to change. The air spring is always in a linear motion state inside the first air spring mounting sleeve 7 and the second air spring mounting sleeve 8, avoiding the state of forced extension on one side of the spring and restriction on the other side, maintaining the consistency of the circumferential extension and contraction of the spring body, and improving the service life of the air spring.

[0022] refer to Figure 2The surface of the second air spring mounting sleeve 8 is symmetrically fitted with limit guide blocks 9, and the interior of the first air spring mounting sleeve 7 is provided with a limit guide groove 10 that slides with the limit guide block 9. By setting the limit guide block 9 and the limit guide groove 10, the limit guide block 9 and the limit guide groove 10 slide in cooperation. On the one hand, the limit guide block 9 can guide the sliding of the first air spring mounting sleeve 7 and the second air spring mounting sleeve 8, ensuring that they slide smoothly in a specific direction, so that the position change of the air spring during operation is more precise and controllable. On the other hand, the limit guide block 9 can limit the sliding range of the second air spring mounting sleeve 8, preventing it from excessively deviating or detaching from the first air spring mounting sleeve 7 during sliding, ensuring the stability of the air spring mounting structure, and thus ensuring the normal operation of the air suspension system.

[0023] refer to Figure 2 and Figure 3 The surface of the main spindle 1 is symmetrically equipped with locking blocks 11. The interior of the first connecting seat 3 is provided with a locking groove 12 that is slidably connected to the locking blocks 11. By setting the locking blocks 11 and the locking groove 12, the sliding engagement of the locking blocks 11 in the locking groove 12 restricts the movement direction of the first connecting seat 3 relative to the main spindle 1. The first connecting seat 3 can be rotated on the main spindle 1 for rotational limitation to avoid movement.

[0024] refer to Figure 1 One end of the support beam 16 and one end of the second connecting beam 6 are both fixedly connected to the mounting base 13. By setting the mounting base 13, one end of the support beam 16 and one end of the second connecting beam 6 are both fixedly connected to the mounting base 13. The main function of this structural design is to provide a connection interface between the air suspension support and other vehicle components such as the frame structure. Through the mounting base 13, the support beam 16 and the second connecting beam 6 can be easily and securely connected to the vehicle frame using bolts and other fasteners, thereby realizing the functions of force transmission and component support in the air suspension system, ensuring the structural stability and operational reliability of the entire suspension system.

[0025] refer to Figure 1 The top of the first connecting beam 2 is equipped with an axle mounting seat 14. By setting the axle mounting seat 14, a reliable installation position is provided for the axle. The axle is firmly installed on the axle mounting seat 14 by bolts or other connection methods, ensuring that the connection between the axle and the air suspension support is stable and will not loosen or fall off during vehicle operation, thus maintaining the structural integrity of the entire suspension system.

[0026] refer to Figure 1 The top of the first connecting beam 2 is fixedly connected to a telescopic limit rod fixing seat 15. By setting a hydraulic cylinder fixing block, a telescopic limit structure is installed between the first connecting beam 2 and the frame to improve the stability of the first connecting beam 2 during movement.

[0027] Brief description of usage: After the air spring is installed between the first air spring mounting sleeve 7 and the second air spring mounting sleeve 8, the support is installed on the vehicle frame. When the air spring extends, it causes the second air spring mounting sleeve 8 to change position inside the first air spring mounting sleeve 7. This causes the first connecting beam 2 to change angle around the connection point of the support beam 16, resulting in changes in the angle between the first connecting seat 3 and the second connecting seat 4 and the main shaft 1 and the secondary shaft 5. The overall angle of the air spring inside the first air spring mounting sleeve 7 and the second air spring mounting sleeve 8 changes accordingly. The air spring is always in a linear motion state inside the first air spring mounting sleeve 7 and the second air spring mounting sleeve 8, avoiding the state of forced extension on one side of the spring and restriction on the other side. This maintains the consistency of the circumferential expansion and contraction of the spring body and improves the service life of the air spring.

[0028] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0029] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A support for an air suspension, comprising a main shaft (1), characterized in that: The main shaft (1) is symmetrically fixedly connected to a first connecting beam (2), and a support beam (16) is hinged to one end of the first connecting beam (2). The main shaft (1) is symmetrically fitted with a first connecting seat (3). A second connecting seat (4) is provided on the top of the first connecting seat (3). A secondary shaft (5) is rotatably connected between the two second connecting seats (4). A second connecting beam (6) is fixedly fitted to both ends of the secondary shaft (5). A first air spring mounting sleeve (7) is fixedly connected to the top of the first connecting seat (3). A second air spring mounting sleeve (8) that is slidably connected to the bottom of the second connecting seat (4) is fixedly connected to the bottom of the second connecting seat (4).

2. The air suspension support according to claim 1, characterized in that: The second air spring mounting sleeve (8) is symmetrically fitted with a limiting guide block (9), and the first air spring mounting sleeve (7) has a limiting guide groove (10) that is slidably connected to the limiting guide block (9).

3. The air suspension support according to claim 1, characterized in that: The main shaft (1) is symmetrically fitted with a locking block (11), and the first connecting seat (3) has a locking groove (12) that is slidably connected to the locking block (11).

4. The air suspension support according to claim 1, characterized in that: One end of the support beam (16) and one end of the second connecting beam (6) are both fixedly connected to a mounting base (13).

5. The air suspension support according to claim 1, characterized in that: The top of the first connecting beam (2) is fitted with an axle fixing seat (14).

6. The air suspension support according to claim 1, characterized in that: The top of the first connecting beam (2) is fixedly connected to a telescopic limit rod fixing seat (15).

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