Firming device for air suspension

Abstract

The utility model relates to the technical field of air suspension accessories, in particular to a fastening device for an air suspension, which comprises an air suspension body, a connecting plate, a frame, a bolt, a nut, a limit rod, a rotating gear ring, a fixed gear ring and an auxiliary anti-loose component. The connecting plate is fixedly installed on the top of the air suspension body, and a frame is connected with a nut by sleeving a bolt in the installation hole. A limiting hole in the lower surface of the nut is slidably connected with a limiting rod in an inserted mode, the other end of the limiting rod is fixed to a rotating gear ring, the rotating gear ring is meshed with a fixed gear ring, and the fixed gear ring is fixed to a connecting plate through a limiting sleeve. An auxiliary anti-loose assembly is arranged at the top of the bolt and comprises anti-skid lines of a gasket and reverse elastic force of a spring piece. Through the cooperation of the limiting sleeve, the fixed gear ring, the rotating gear ring, the limiting rod and the limiting hole and the combination of the auxiliary anti-loosening assembly, the nut and the bolt are effectively prevented from loosening, the stability and reliability of connection between the air suspension and the vehicle frame are improved, and the vehicle driving safety and performance are improved.

Description

Technical Field

[0001] This utility model relates to the field of air suspension accessories technology, specifically a sturdy device for air suspension. Background Technology

[0002] Air suspension is a suspension system that uses air springs instead of traditional mechanical springs. It utilizes the elastic properties of compressed air to achieve the cushioning and shock absorption functions of vehicle suspension. The core components of air suspension include air springs, height valves, compressors, and control units. It can adjust the stiffness and damping of the suspension system in real time according to the vehicle's driving conditions and load changes, thereby significantly improving the vehicle's comfort, handling, and load adaptability. Compared to traditional suspension, air suspension has a higher level of intelligence and better performance, and therefore is widely used in high-end passenger cars, commercial vehicles, and special-purpose vehicles.

[0003] In existing technologies, air suspension systems are typically installed by fixing them to a frame at the bottom of the vehicle body to ensure stability and reliability. During actual installation, the air suspension is generally connected to the frame using multiple sets of bolts, washers, and nuts. While this installation method can meet basic fixing requirements in the short term, the small contact area between the washers and bolts makes them prone to loosening due to vibration or fatigue over prolonged use. Furthermore, the limited friction time further affects the reliability of the connection between the air suspension and the frame, potentially leading to safety hazards. Utility Model Content

[0004] The purpose of this invention is to provide a robust device for air suspension to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sturdy device for air suspension, comprising: an air suspension body and a connecting plate fixedly installed on the top of the air suspension body, a frame being provided on the upper side of the connecting plate, and a mounting hole being provided through the upper surface of the frame, and the mounting hole penetrating the top of the connecting plate;

[0006] A bolt is fitted inside the mounting hole, and the bottom of the bolt is threaded to the nut. A limit hole is opened on the lower surface of the nut. The limit hole is slidably inserted into one end of the limit rod. The other end of the limit rod is fixedly connected to one side of the rotating gear ring. The other side of the rotating gear ring is engaged with the fixed gear ring. The fixed gear ring is fixedly connected to the connecting plate through the limit sleeve. An auxiliary anti-loosening component is provided on the top of the bolt.

[0007] Preferably, the auxiliary anti-loosening component includes a gasket, the upper surface of which has anti-slip texture, and the lower surface of which abuts against the spring sheet.

[0008] Preferably, the inner ring surface of the spring sheet is fixedly connected to the small fixed ring, and the outer ring surface of the spring sheet is fixedly connected to the large fixed ring.

[0009] Preferably, the spring sheets are arranged in a circumferential array between the small fixed ring and the large fixed ring, and a set of spring sheets are provided and arranged symmetrically about the center plane of the small fixed ring and the large fixed ring.

[0010] Preferably, the end of the limiting sleeve near the connecting plate is fixedly connected to one end of the return spring, and the other end of the return spring abuts against one side of the rotating toothed ring. The rotating toothed ring and the fixed toothed ring are engaged by triangular teeth, and the rotating toothed ring is slidably sleeved inside the limiting sleeve.

[0011] Preferably, a pressure rod is provided at the end of the limiting sleeve away from the connecting plate. The pressure rod is slidably sleeved between the limiting sleeve and the fixed toothed ring. One end of the pressure rod is fixedly connected to the rotating toothed ring, and the other end of the pressure rod is fixedly connected to a pressure block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The limiting and fixing fit between the limiting sleeve, the fixed toothed ring, the rotating toothed ring, the limiting rod and the limiting hole can effectively prevent the nut from loosening. At the same time, combined with the auxiliary anti-loosening component on the top of the bolt, the stability of the connection between the air suspension body and the vehicle frame is further improved, reducing the occurrence of safety hazards.

[0014] The auxiliary anti-loosening component uses the friction between the washer and the bolt, as well as the reverse elastic force generated by the spring plate after being compressed, to make the connection between the nut and the bolt tighter, thereby further preventing the bolt from loosening and improving the stability and safety of the air suspension installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a bottom view of the overall structure of this utility model;

[0017] Figure 3 This is a top view of the internal structure of this utility model;

[0018] Figure 4 This is a bottom view of the internal structure of this utility model.

[0019] In the diagram: 1. Air suspension body; 2. Connecting plate; 3. Vehicle frame; 4. Mounting hole; 5. Bolt; 6. Nut; 7. Limiting hole; 8. Limiting rod; 9. Rotating gear ring; 10. Fixed gear ring; 11. Limiting sleeve;

[0020] 12. Gasket; 13. Anti-slip texture; 14. Spring plate; 15. Small retaining ring; 16. Large retaining ring; 17. Return spring; 18. Pressure rod; 19. Pressure block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Example 1: Please refer to Figures 1-4 This utility model provides a technical solution: a secure device for air suspension, comprising: an air suspension body 1 and a connecting plate 2 fixedly installed on the top of the air suspension body 1. The air suspension body 1 is prior art, employing known technical solutions, including components such as airbags and pistons to achieve vehicle height adjustment, which will not be elaborated here. The installation method between the bottom of the air suspension body 1 and the wheel frame adopts existing technical solutions, such as connecting through specific fasteners such as bolts and brackets. The specific installation structure and method are well known to those skilled in the art and will not be elaborated further here. The connecting plate 2 is used for connection with the vehicle body. A frame 3 is provided on the upper side of the connecting plate 2. A mounting hole 4 is formed through the upper surface of the frame 3, and the mounting hole 4 penetrates the top of the connecting plate 2. The mounting hole 4 facilitates the connection between the frame 3 and the connecting plate. For installation between 2, a bolt 5 is fitted inside the mounting hole 4. The bottom of the bolt 5 is threadedly connected to the nut 6. A limit hole 7 is opened on the lower surface of the nut 6. The limit hole 7 is slidably inserted into one end of the limit rod 8. The length of the limit rod 8 is less than the depth of the limit hole 7, so that the limit rod 8 can slide inside it. By sliding the limit rod 8 into the limit hole 7, the bolt 5 is limited. The other end of the limit rod 8 is fixedly connected to one side of the rotating gear ring 9. The other side of the rotating gear ring 9 is engaged with the fixed gear ring 10. The fixed gear ring 10 is fixedly connected to the connecting plate 2 through the limit sleeve 11. One end of the limit sleeve 11 is fixedly connected to the fixed gear ring 10, and the other end of the limit sleeve 11 is fixedly connected to the connecting plate 2. An auxiliary anti-loosening component is provided on the top of the bolt 5. By setting the auxiliary anti-loosening component, the loosening between the bolt 5 and the nut 6 is further prevented.

[0023] When it is necessary to connect and install the air suspension body 1 and the vehicle frame 3, the vehicle frame 3 is placed on the upper surface of the connecting plate 2 set on the top of the air suspension body 1, so that the connecting plate 2 and the mounting hole 4 opened on the vehicle frame 3 are coaxial. Then, the threaded end of the bolt 5 is inserted into the connecting plate 2. Due to the engagement between the fixed toothed ring 10 and the rotating toothed ring 9, the rotating toothed ring 9 is limited. The rotating toothed ring 9 then limits and fixes the nut 6 through the insertion between the limiting rod 8 and the limiting hole 7. Then, the bolt 5 can be screwed into the connecting plate 2 to fix the connecting plate 2 and the vehicle frame 3, thereby fixing the air suspension body 1 and the vehicle frame 3. Due to the limiting and fixing between the limiting sleeve 11, the fixed toothed ring 10, the rotating toothed ring 9, the limiting rod 8, and the limiting hole 7, the nut 6 is prevented from loosening. At the same time, with the auxiliary anti-loosening component set on the top of the bolt 5, the bolt 5 is prevented from loosening, thereby improving the stability of the connection between the air suspension body 1 and the vehicle frame 3 and reducing the occurrence of safety hazards.

[0024] Example 2: Based on Example 1, the auxiliary anti-loosening component includes a washer 12, which is slidably fitted onto the bolt 5. The upper surface of the washer 12 has anti-slip texture 13, which increases the friction between the washer and the bolt 5, thereby improving the anti-slip performance between them. The lower surface of the washer 12 abuts against the spring sheet 14, and the washer 12 can compress the spring sheet 14 to deform. The inner ring surface of the spring sheet 14 is fixedly connected to the small fixing ring 15, and the outer ring surface of the spring sheet 14 is fixedly connected to the large fixing ring 16. The spring sheets 14 are arranged in a circumferential array between the small fixing ring 15 and the large fixing ring 16. A set of spring sheets 14 is provided and is symmetrically arranged about the center plane of the small fixing ring 15 and the large fixing ring 16. The set of symmetrically arranged spring sheets 14 is drum-shaped.

[0025] Through the threaded engagement of bolt 5 and nut 6, as bolt 5 is tightened, it moves toward the interior of connecting plate 2, which in turn causes washer 12 to compress spring plate 14. Spring plate 14 is subjected to pressure and deformed under the limitation of small fixed ring 15 and large fixed ring 16, and then generates a reverse elastic force, which tends to push bolt 5 in the opposite direction, thereby making the connection between nut 6 and bolt 5 tighter. At the same time, the anti-slip texture 13 on washer 12 further prevents bolt 5 from loosening.

[0026] Example 3: Based on Example 2, the end of the limiting sleeve 11 near the connecting plate 2 is fixedly connected to one end of the return spring 17. The other end of the return spring 17 abuts against one side of the rotating gear ring 9. The return spring 17 can push the rotating gear ring 9, thereby making it mesh with the fixed gear ring 10. The rotating gear ring 9 and the fixed gear ring 10 are meshed by triangular teeth. The rotating gear ring 9 is slidably sleeved in the limiting sleeve 11, and the limiting sleeve 11 limits the rotation of the gear ring 9. A pressure rod 18 is provided at the end of the limiting sleeve 11 away from the connecting plate 2. The pressure rod 18 is slidably sleeved between the limiting sleeve 11 and the fixed gear ring 10. One end of the pressure rod 18 is fixedly connected to the rotating gear ring 9, and the other end of the pressure rod 18 is fixedly connected to a pressure block 19.

[0027] Before bolt 5 and nut 6 are installed, the limiting rod 8 is initially partially inserted into the limiting hole 7. Specifically, one end of the limiting rod 8 is inserted into the limiting hole 7 and held stable, while the other end remains outside the limiting hole 7, thus achieving initial positioning and connection of the components. By pushing the pressure block 19 upward, the pressure block 19 causes one end of the pressure rod 18 to slide into the limiting sleeve 11. The other end of the pressure rod 18 drives the rotating gear ring 9 to compress the return spring 17 and move closer to bolt 5. The limiting rod 8 then continues to slide into the limiting hole 7, through bolt 5 and nut 6. The threaded connection fixes the two together. At this time, the rotating gear ring 9 no longer meshes with the fixed gear ring 10. After tightening, the pressure block 19 is released, and the return spring 17 generates a reverse elastic force to push the rotating gear ring 9 in the opposite direction, so that it meshes with the fixed gear ring 10 again. Then, through the cooperation of the limiting rod 8 and the limiting hole 7, the nut 6 is limited, thereby preventing the nut 6 from loosening. This improves the stability of the connection between the bolt 5 and the nut 6, further prevents the nut 6 from loosening, improves the stability of the connection between the air suspension body 1 and the frame 3, and reduces the occurrence of safety hazards.

[0028] 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. A securement device for an air suspension, comprising an air suspension body (1) and a connection plate (2) fixedly mounted on top of the air suspension body (1), characterized in that: The connecting plate (2) is provided with a frame (3) on the upper side, the upper surface of the frame (3) is provided with a mounting hole (4) penetrating through the top of the connecting plate (2); The mounting hole (4) is sleeved with a bolt (5), the bottom of the bolt (5) is threadedly connected with a nut (6), the lower surface of the nut (6) is provided with a limiting hole (7), the limiting hole (7) is slidably connected with one end of a limiting rod (8), the other end of the limiting rod (8) is fixedly connected with one side of a rotating tooth ring (9), the other side of the rotating tooth ring (9) is engaged with a fixed tooth ring (10), the fixed tooth ring (10) is fixedly connected with the connecting plate (2) through a limiting sleeve (11), and the top of the bolt (5) is provided with an auxiliary anti-loosening assembly.

2. A securement device for an air suspension as defined in claim 1, wherein: The auxiliary anti-loosening assembly comprises a gasket (12), the upper surface of the gasket (12) is provided with anti-skid lines (13), and the lower surface of the gasket (12) is abutted with a spring sheet (14).

3. A securement device for an air suspension as defined in claim 2, wherein: The inner ring surface of the spring sheet (14) is fixedly connected with a small fixed ring (15), and the outer ring surface of the spring sheet (14) is fixedly connected with a large fixed ring (16).

4. A securement device for an air suspension as defined in claim 3, wherein: The spring sheet (14) is arranged in an array around the small fixed ring (15) and the large fixed ring (16), and the spring sheet (14) is arranged in one group and is symmetrically arranged about the center plane of the small fixed ring (15) and the large fixed ring (16).

5. A securement device for an air suspension as defined in claim 1, wherein: One end of the limiting sleeve (11) is fixedly connected with one end of a reset spring (17) inside the end close to the connecting plate (2), the other end of the reset spring (17) is abutted with one side of the rotating tooth ring (9), the rotating tooth ring (9) and the fixed tooth ring (10) are engaged through triangular teeth, and the rotating tooth ring (9) is slidably sleeved in the limiting sleeve (11).

6. A securement device for an air suspension as defined in claim 5, wherein: The end away from the connecting plate (2) of the limiting sleeve (11) is provided with a pressing rod (18), the pressing rod (18) is slidably sleeved between the limiting sleeve (11) and the fixed tooth ring (10), one end of the pressing rod (18) is fixedly connected with the rotating tooth ring (9), and the other end of the pressing rod (18) is fixedly connected with a pressing block (19).

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