An adjustable air suspension

Abstract

The utility model discloses an adjustable air suspension belongs to air suspension technical field, include: air suspension main part and installation pole, the installation sleeve is sleeved in the one end of installation pole, the installation sleeve bottom is equipped with the mounting bracket, the screw rod is rotatably connected in the installation sleeve, the threaded hole is set up in the installation pole bottom, the utility model discloses, through setting up the threaded hole of screw rod and installation pole end portion in the installation sleeve, the stepless telescopic adjustment of rotatable screw rod realizes that the suspension assembly is in the vertical direction, makes air suspension to be able to according to the chassis space of different vehicle models, the distance between the axle and the installation interface position carries out dynamic matching, need not to replace core component to complete size adjustment, both retain the dynamic pressure regulating characteristic of air suspension, break through the limitation of original installation size, make the same set of suspension system to be compatible with multiple chassis architecture, significantly expand the application range of adjustable air suspension technology.

Description

Technical Field

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

[0002] Adjustable air suspension is an advanced suspension system that dynamically adjusts a vehicle's chassis height and suspension characteristics using compressed air. Its core principle involves using an air compressor to inject compressed air into independent air springs. By changing the air pressure within the springs, the vehicle's height and stiffness are adjusted, while adjustable damping shock absorbers provide shock absorption. The main function of adjustable air suspension is to improve vehicle adaptability: lowering the vehicle on bumpy roads enhances comfort, raising the chassis at high speeds improves handling stability, and automatically balancing the vehicle's posture when the load changes.

[0003] Current adjustable air suspension systems can effectively connect the vehicle body and axles, ensuring vehicle comfort and stability. However, the mechanical dimensions of existing adjustable air suspensions are generally standardized and fixed. This structural characteristic leads to significant limitations in the installation and adaptation process. Its fixed geometric parameters are difficult to be compatible with the chassis architecture, wheelbase specifications, and ground clearance requirements of different vehicle models, thus restricting the adaptability of this technology in cross-vehicle application scenarios. Utility Model Content

[0004] This invention proposes an adjustable air suspension to address the problem that existing air suspensions cannot meet different installation requirements.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable air suspension, comprising:

[0006] Air suspension body and mounting rod;

[0007] An installation sleeve is fitted onto one end of an installation rod. The bottom end of the installation sleeve is provided with an installation bracket, and a threaded rod is rotatably connected inside the installation sleeve.

[0008] A threaded hole is provided at the bottom of the mounting rod. The threaded hole is adapted to the threaded rod. The upper end of the threaded rod is located inside the threaded hole and is threadedly connected to the side wall of the threaded hole.

[0009] Two limiting plates are respectively set on both sides of the mounting rod. The inner wall of the mounting sleeve is provided with limiting grooves that are adapted to the limiting plates. The two limiting plates are respectively located in the two limiting grooves and are slidably connected to the side wall of the limiting groove.

[0010] In a preferred embodiment, the mounting bracket is U-shaped and has mounting holes running through it.

[0011] In a preferred embodiment, the bottom end of the mounting sleeve is provided with a drive groove, the bottom end of the threaded rod extends into the drive groove and is rotatably connected to the bottom end of the drive groove, a drive shaft is rotatably connected to one side of the drive groove, one end of the drive shaft passes through the drive groove and extends to the outside, the other end of the drive shaft is provided with a first bevel gear, and a second bevel gear that meshes with the first bevel gear is provided on the outside of the threaded rod.

[0012] In a preferred embodiment, the bottom end of the mounting rod is provided with a limiting spring, and the bottom end of the limiting spring is located on one side of the inner wall of the mounting sleeve.

[0013] To ensure the stability of the air suspension structure, each of the two limiting plates is rotatably connected to a fixing bolt on one side. One end of each fixing bolt extends outward through the two limiting grooves and is fitted with a matching fixing nut. The two fixing nuts abut against both sides of the mounting rod.

[0014] In a preferred embodiment, positioning grooves are provided on both sides of the inner wall of the mounting sleeve, and matching abutment pins are provided in both positioning grooves. The ends of the two abutment pins are both arc-shaped. Abutment grooves matching the abutment pins are provided on both sides of the mounting rod, and the ends of the two abutment pins are respectively located in the two abutment grooves.

[0015] In a preferred embodiment, each of the two abutment pins is provided with a compression spring at one end, and the other ends of the two compression springs are respectively provided at one end of the two positioning grooves.

[0016] To ensure the accuracy of air suspension size adjustment, a fixing ring is provided on the outer side of the mounting rod, and multiple guide rods are provided at the bottom end of the fixing ring. Multiple guide grooves that are adapted to the guide rods are opened at one end of the mounting sleeve. The multiple guide rods are respectively located in the multiple guide grooves and are slidably connected to the side wall of the guide groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model, through the threaded rod set in the mounting sleeve and the threaded hole at the end of the mounting rod, allows the rotatable threaded rod to achieve stepless telescopic adjustment of the suspension assembly in the vertical direction. This enables the air suspension to dynamically match the chassis space, axle spacing and mounting interface position of different vehicle models. Size adjustment can be completed without replacing core components. It retains the dynamic pressure adjustment characteristics of air suspension and breaks through the original installation size limitations. This allows the same suspension system to be compatible with multiple chassis architectures, significantly expanding the application range of adjustable air suspension technology.

[0019] 2. This utility model, through the fixing ring and multiple guide rods set on the outside of the mounting rod, and the guide groove correspondingly opened at the end of the mounting sleeve, when the position of the mounting sleeve is adjusted, the fixing ring forms a radial constraint on the mounting sleeve through the guide rods, so that it can only move along the preset axis direction, effectively eliminating the risk of lateral offset or torsion during the adjustment process, ensuring that the relative position accuracy of each component always meets the design requirements after each adjustment, and providing a reliable mechanical foundation for the stable operation of the air suspension system under complex working conditions. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main appearance of the structure of this utility model;

[0021] Figure 2 This is a schematic front cross-sectional view of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram showing the connection of the mounting sleeve, mounting bracket, and fixing ring in the structure of this utility model.

[0023] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0024] In the diagram: 1. Air suspension body; 2. Mounting rod; 3. Mounting sleeve; 4. Mounting bracket; 5. Threaded rod; 6. Limiting plate; 7. Mounting hole; 8. Drive shaft; 9. First bevel gear; 10. Second bevel gear; 11. Limiting spring; 12. Fixing bolt; 13. Fixing nut; 14. Abutment pin; 15. Compression spring; 16. Retaining ring; 17. Guide rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1:

[0027] Please see Figure 1-4 This utility model provides an adjustable air suspension, comprising:

[0028] Air suspension body 1 and mounting rod 2;

[0029] Mounting sleeve 3 is fitted onto one end of mounting rod 2. Mounting bracket 4 is provided at the bottom end of mounting sleeve 3. Threaded rod 5 is rotatably connected inside mounting sleeve 3.

[0030] A threaded hole is provided at the bottom of the mounting rod 2. The threaded hole is adapted to the threaded rod 5. The upper end of the threaded rod 5 is located inside the threaded hole and is threadedly connected to the side wall of the threaded hole.

[0031] Two limiting plates 6 are respectively set on both sides of the mounting rod 2. The inner wall of the mounting sleeve 3 is provided with limiting grooves that are adapted to the limiting plates 6. The two limiting plates 6 are respectively located in the two limiting grooves and are slidably connected to the side wall of the limiting groove.

[0032] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, the mounting bracket 4 is U-shaped and has a through mounting hole 7, which can be used to connect with the axle.

[0033] Specifically, such as Figure 2 As shown, the bottom of the mounting sleeve 3 has a drive groove, the bottom of the threaded rod 5 extends into the drive groove and is rotatably connected to the bottom of the drive groove. A drive shaft 8 is rotatably connected to one side of the drive groove. One end of the drive shaft 8 passes through the drive groove and extends to the outside. The other end of the drive shaft 8 is provided with a first bevel gear 9. A second bevel gear 10 that meshes with the first bevel gear 9 is provided on the outside of the threaded rod 5. By rotating the drive shaft 8, the threaded rod 5 can be rotated through the first bevel gear 9 and the second bevel gear 10, thereby adjusting the size of the air suspension.

[0034] Specifically, such as Figure 2 As shown, a limiting spring 11 is provided at the bottom of the mounting rod 2. The bottom of the limiting spring 11 is located on one side of the inner wall of the mounting sleeve 3. The limiting spring 11 can provide preload, eliminate thread clearance, buffer adjustment impact, and enhance the system's vibration resistance, making size adjustment more stable and precise.

[0035] Specifically, such as Figure 2 and Figure 3 As shown, each of the two limiting plates 6 is rotatably connected to a fixing bolt 12 on one side. One end of each fixing bolt 12 extends outward through the two limiting grooves and is fitted with a matching fixing nut 13. The two fixing nuts 13 abut against both sides of the mounting rod 2.

[0036] Through its design, by rotating the fixing bolt 12, the fixing nut 13 is moved so that the fixing nut 13 abuts against the outside of the mounting sleeve 3, which can limit the position of the limiting plate 6, ensuring the tightness of the connection between the mounting rod 2 and the mounting sleeve 3, thereby ensuring the robustness of the air suspension structure.

[0037] Specifically, such as Figure 2 and Figure 4 As shown, positioning grooves are provided on both sides of the inner wall of the mounting sleeve 3, and matching abutment pins 14 are provided in both positioning grooves. The ends of the two abutment pins 14 are rounded. The mounting rod 2 has abutment grooves on both sides that match the abutment pins 14. The ends of the two abutment pins 14 are located in the two abutment grooves respectively. By abutting against the abutment pins 14 in the abutment grooves on both sides of the mounting rod 2, the firmness of the connection between the mounting rod 2 and the mounting sleeve 3 can be further improved.

[0038] Specifically, such as Figure 2 and Figure 4 As shown, each of the two abutment pins 14 is provided with a compression spring 15 at one end, and the other end of the two compression springs 15 is respectively provided at one end of the two positioning grooves. The compression springs 15 can ensure that the abutment pin 14 is always pressed against the abutment grooves on both sides of the mounting rod 2.

[0039] Example 2:

[0040] Please see Figure 1-4 This utility model provides an adjustable air suspension, comprising:

[0041] Air suspension body 1 and mounting rod 2;

[0042] Mounting sleeve 3 is fitted onto one end of mounting rod 2. Mounting bracket 4 is provided at the bottom end of mounting sleeve 3. Threaded rod 5 is rotatably connected inside mounting sleeve 3.

[0043] A threaded hole is provided at the bottom of the mounting rod 2. The threaded hole is adapted to the threaded rod 5. The upper end of the threaded rod 5 is located inside the threaded hole and is threadedly connected to the side wall of the threaded hole.

[0044] Two limiting plates 6 are respectively set on both sides of the mounting rod 2. The inner wall of the mounting sleeve 3 is provided with limiting grooves that are adapted to the limiting plates 6. The two limiting plates 6 are respectively located in the two limiting grooves and are slidably connected to the side wall of the limiting groove.

[0045] Specifically, such as Figure 3 As shown, a fixing ring 16 is provided on the outer side of the mounting rod 2, and multiple guide rods 17 are provided at the bottom end of the fixing ring 16. Multiple guide grooves that are adapted to the guide rods 17 are opened at one end of the mounting sleeve 3. The multiple guide rods 17 are located in the multiple guide grooves respectively and are slidably connected to the side wall of the guide groove.

[0046] Through its design, the fixing ring 16 on the outside of the mounting rod 2 and multiple guide rods 17 can limit the precision of the movement of the mounting sleeve 3, preventing it from shifting its position during movement, thus providing a reliable mechanical basis for the stable operation of the air suspension system under complex working conditions.

[0047] See Figure 1-4When using the adjustable air suspension, the drive shaft 8 needs to be rotated first. The drive shaft 8 will drive the first bevel gear 9 at the end to rotate, and the first bevel gear 9 will drive the second bevel gear 10 to rotate, which will drive the threaded rod 5 to rotate. The threaded rod 5 will drive the mounting rod 2 to move, thereby adjusting the size of the air suspension to meet different installation requirements. After the size of the air suspension is adjusted, it needs to be fixed. To fix it, two fixing bolts 12 need to be rotated. The two fixing bolts 12 will drive the two fixing nuts 13 to move, so that the two fixing nuts 13 are respectively against the two sides of the mounting sleeve 3, thereby limiting the position of the two limiting plates 6, ensuring the stability of the air suspension during use, and providing a reliable mechanical foundation for the stable operation of the air suspension system under complex working conditions.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable air suspension, characterized by, include: Air suspension body (1) and mounting rod (2); An installation sleeve (3) is fitted onto one end of an installation rod (2). The bottom end of the installation sleeve (3) is provided with an installation bracket (4). A threaded rod (5) is rotatably connected inside the installation sleeve (3). A threaded hole is provided at the bottom of the mounting rod (2). The threaded hole is adapted to the threaded rod (5). The upper end of the threaded rod (5) is located inside the threaded hole and is threadedly connected to the side wall of the threaded hole. Two limiting plates (6) are respectively set on both sides of the mounting rod (2). The inner wall of the mounting sleeve (3) is provided with limiting grooves that are compatible with the limiting plates (6). The two limiting plates (6) are respectively located in the two limiting grooves and are slidably connected to the side wall of the limiting groove.

2. An adjustable air suspension as claimed in claim 1, characterised in that: The mounting bracket (4) is U-shaped and has mounting holes (7) through it.

3. An adjustable air suspension as claimed in claim 1, wherein: The mounting sleeve (3) has a drive groove at its bottom end. The bottom end of the threaded rod (5) extends into the drive groove and is rotatably connected to the bottom end of the drive groove. A drive shaft (8) is rotatably connected to one side of the drive groove. One end of the drive shaft (8) passes through the drive groove and extends to the outside. The other end of the drive shaft (8) is provided with a first bevel gear (9). A second bevel gear (10) that meshes with the first bevel gear (9) is provided on the outside of the threaded rod (5).

4. An adjustable air suspension as in claim 1, wherein: The bottom end of the mounting rod (2) is provided with a limiting spring (11), and the bottom end of the limiting spring (11) is located on one side of the inner wall of the mounting sleeve (3).

5. An adjustable air suspension as in claim 1, wherein: Each of the two limiting plates (6) is rotatably connected to a fixing bolt (12) on one side. One end of each of the two fixing bolts (12) extends outward through the two limiting grooves and is fitted with a matching fixing nut (13). The two fixing nuts (13) abut against both sides of the mounting rod (2).

6. An adjustable air suspension as in claim 1, wherein: The mounting sleeve (3) has positioning grooves on both sides of its inner wall. Each of the two positioning grooves has a matching abutment pin (14). The ends of the two abutment pins (14) are arc-shaped. The mounting rod (2) has abutment grooves on both sides that match the abutment pins (14). The ends of the two abutment pins (14) are located in the two abutment grooves respectively.

7. An adjustable air suspension as claimed in claim 6, characterised in that: Each of the two abutting pins (14) is provided with a compression spring (15) at one end, and the other end of the two compression springs (15) is respectively provided at one end of the two positioning grooves.

8. An adjustable air suspension as in claim 1, wherein: The mounting rod (2) is provided with a fixing ring (16) on the outside. The bottom end of the fixing ring (16) is provided with multiple guide rods (17). One end of the mounting sleeve (3) is provided with multiple guide grooves that are adapted to the guide rods (17). The multiple guide rods (17) are respectively located in the multiple guide grooves and are slidably connected to the side wall of the guide groove.

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