Novel air suspension structure

Abstract

The utility model relates to the technical field of air suspension, and particularly discloses a novel air suspension structure which comprises an installation frame, a connecting frame and an air bag, the installation frame is fixed at the lower end of a vehicle body through a supporting frame, the connecting frame is fixed on an axle through a U-shaped bolt, and the left end and the right end of the connecting frame are both connected with rotating rods in a rotating mode. The two installation frames are located on the left side and the right side of the axle respectively, one end of each air bag is fixedly installed on the inner wall of the end, away from the axle, of the corresponding installation frame, and after the air bags are inflated, the push plates and the driving rods are pushed to move, so that the rotating rods are driven to rotate, the rotating rods move towards one side of the axle, the axle is driven to ascend, and the axle is separated from the ground and moves upwards. Due to the fact that the installation frame and the axle are basically located on the same horizontal line, and the air bag is installed on the inner side of the upper end of the installation frame, the occupied height of the structure below the supporting frame is reduced, the ground clearance of a vehicle is increased, a trailer with a bottom chassis can also use the device, and the universality of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of air suspension technology, specifically a novel air suspension structure. Background Technology

[0002] Almost all multi-axle trailers are equipped with air suspension. When they are unloaded or lightly loaded, one or more axles can be lifted, reducing the number of wheels in contact with the ground. This also reduces tire wear and steering resistance. Therefore, most multi-axle trailers are equipped with air suspension structures with axle lifting mechanisms.

[0003] However, in traditional air suspension systems, both the mounting bracket and the lift airbag are located below the support frame. Furthermore, the mounting bracket must be left with sufficient length downwards to ensure that the lift airbag has enough installation space. Therefore, the mounting bracket occupies a large amount of space, which greatly reduces the vehicle's ground clearance. For trailers with low chassis height, the air suspension structure with the axle lift mechanism cannot be used. Utility Model Content

[0004] The purpose of this invention is to provide a novel air suspension structure to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel air suspension structure, comprising: a mounting frame, a connecting frame, and an airbag. The mounting frame is fixed to the lower end of the vehicle body by a support frame, and the connecting frame is fixed to the axle by U-bolts. Rotating rods are rotatably connected to both the left and right ends of the connecting frame.

[0006] There are two mounting frames, located on the left and right sides of the axle respectively. One end of the airbag is fixedly mounted on the inner wall of the mounting frame away from the axle, and the other end of the airbag is fixedly mounted with a push plate. The push plate is slidably connected to the mounting frame through a sliding component. A drive rod is fixedly mounted on the outer end of the push plate, and the outer end of the drive rod is rotatably connected to the end of the rotating rod away from the connecting frame.

[0007] Preferably, ear plates are fixedly installed at both ends of the connecting frame, and a rotating block is fixedly installed at the outer end of the drive rod. One end of the rotating rod is rotatably connected to the ear plate through a pin, and the other end is rotatably connected to the rotating block through a pin.

[0008] Preferably, the outer end of the drive rod is slidably sleeved with a guide sleeve, and the front and rear ends of the guide sleeve are fixedly connected to the inner wall of the mounting frame through a connecting block.

[0009] Preferably, the left and right ends of each mounting frame are fixedly connected to the lower end of the support frame by bolts, and the upper end of the support frame and the lower end of the vehicle body are fixedly connected by bolts.

[0010] Preferably, the sliding component includes a groove and a slider. The groove is formed on the side walls at both ends of the mounting frame, and the slider is fixedly installed on the side walls at both ends of the push plate, with the slider located inside the groove.

[0011] Preferably, the slider has a box at both the upper and lower ends, and a fixing plate is fixedly welded to the outer end of the box. The fixing plate is fixed to the outer wall of the upper and lower ends of the slider by bolts.

[0012] Preferably, the outer end of the box body is provided with a number of arc-shaped holes, and each arc-shaped hole is connected to a rolling ball. Two-thirds of the ball is located inside the box body, and one end of the ball is in rolling contact with the outer end of the slider.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] After the airbag inflates, it pushes the push plate and drive rod to move, which in turn drives the rotating rod to rotate. The rotating rod moves towards one side of the axle, driving the axle to rise and lift it off the ground. Since the mounting frame and the axle are basically on the same horizontal line, and the airbag is installed on the upper inner side of the mounting frame, the height occupied by the structure below the support frame is reduced, increasing the vehicle's ground clearance. This allows trailers with low chassis to also use this device, increasing its versatility. Attached Figure Description

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

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

[0017] Figure 3 This is a three-dimensional view of part of the structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the upper and lower ends of the slider of this utility model.

[0019] In the diagram: 1. Mounting frame; 2. Support frame; 3. Axle; 4. Connecting frame; 5. Slide groove; 6. Airbag; 7. Push plate; 8. Drive rod; 9. Guide sleeve; 10. Rotating block; 11. Rotating rod; 12. Ear plate; 13. Slider; 14. Box body; 15. Fixing plate; 16. Arc hole; 17. Ball bearing. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-4 This utility model provides a technical solution: a novel air suspension structure, including: a mounting frame 1, a connecting frame 4, and an airbag 6. The mounting frame 1 is fixed to the lower end of the vehicle body by a support frame 2. The connecting frame 4 is fixed to the axle 3 by U-bolts. The mounting frame 1 is convex and has two parts, which are located on the left and right sides of the axle 3 respectively. The left and right ends of each mounting frame 1 are fixedly connected to the lower end of the support frame 2 by bolts. The upper end of the support frame 2 is fixedly connected to the lower end of the vehicle body by bolts, thereby firmly fixing the mounting frame 1. Two ear plates 12 are fixedly installed on the left and right ends of the connecting frame 4, and a rotating rod 11 is rotatably connected to the ear plates 12. One end of the rotating rod 11 is inserted between the two ear plates 12 and rotatably connected to the ear plates 12 by a pin. One end of the rotating rod 11 can rotate on one side of the connecting frame 4.

[0022] One end of the airbag 6 is fixedly installed on the inner wall of the mounting frame 1 away from the axle 3. The other end of the airbag 6 is fixedly installed with a push plate 7. The lower end and the front and rear ends of the push plate 7 are in sliding contact with the inner wall of the mounting frame 1. The push plate 7 is slidably connected to the mounting frame 1 through a sliding component. When the airbag 6 is inflated or deflated, it can drive the push plate 7 to slide synchronously within the mounting frame 1. The sliding component includes a slide groove 5 and a slider 13. The slide groove 5 is opened on the side walls of the front and rear ends of the mounting frame 1. The slider 13 is fixedly installed on the side walls of the front and rear ends of the push plate 7, and the slider 13 is located inside the slide groove 5. Each slider 13 has a box 14 at both the upper and lower ends. A fixing plate 15 is fixedly welded to the outer end of the box 14. The fixing plate 15 is fixed to the outer wall of the upper and lower ends of the slider 13 by bolts, thereby fixing one open end of the box 14 to the outer wall of the slider 13.

[0023] The outer end of the box body 14 is evenly provided with several arc-shaped holes 16. Each arc-shaped hole 16 is connected to a rolling ball 17. Two-thirds of the ball 17 is located inside the box body 14, and one end of the ball 17 is in rolling contact with the outer end of the slider 13. The ball 17 is located at the outer end of the box body 14 and is connected to the inner wall of the slide groove 5. When the airbag 6 drives the push plate 7 to move, the push plate 7 carries the slider 13 and slides in the slide groove 5 through the ball 17, which plays the role of limiting and guiding the push plate 7.

[0024] A drive rod 8 is fixedly installed on the outer end of the push plate 7. When the push plate 7 moves, it can move the drive rod 8 synchronously. A guide sleeve 9 is slidably sleeved on the outer end of the drive rod 8. The front and rear ends of the guide sleeve 9 are fixedly connected to the inner wall of the mounting frame 1 through a connecting block. When the drive rod 8 moves, it moves inside the guide sleeve 9 to guide and limit the drive rod 8. The outer end of the drive rod 8 is rotatably connected to the end of the rotating rod 11 away from the connecting frame 4. A rotating block 10 is fixedly installed on the outer end of the drive rod 8. One end of the rotating rod 11 is rotatably connected to the ear plate 12 through a shaft pin, and the other end is rotatably connected to the rotating block 10 through a shaft pin. When the drive rod 8 moves, it can drive the rotating rod 11 to move. When the rotating rod 11 moves, it can drive the connecting frame 4 and the axle 3 upward or downward.

[0025] In actual use, after the airbag 6 inflates, it pushes the push plate 7 and the drive rod 8 to move, thereby causing the rotating rod 11 to rotate. The rotating rod 11 moves towards one side of the axle 3, driving the axle 3 to rise and lift it off the ground. Since the mounting frame 1 and the axle 3 are basically on the same horizontal line, and the airbag 6 is installed on the upper inner side of the mounting frame 1, the height occupied by the structure below the support frame 2 is reduced, increasing the ground clearance of the vehicle. This allows trailers with low chassis to also use this device, increasing its versatility.

[0026] 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 novel air suspension structure comprising: The utility model relates to a kind of air bag installation frame, including installation frame (1), connecting frame (4) and air bag (6), installation frame (1) is fixed in the lower end of vehicle body by support frame (2), it is characterized in that: the connecting frame (4) is fixed on axle (3) by U type bolt, and the left and right ends of connecting frame (4) are rotatably connected with rotating rod (11); Two installation frames (1) are arranged on the left and right sides of axle (3), one end of air bag (6) is fixedly installed on the inner wall of the end of installation frame (1) away from axle (3), the other end of air bag (6) is fixedly installed with push plate (7), push plate (7) is slidably connected with installation frame (1) by sliding component, the outer end of push plate (7) is fixedly installed with driving rod (8), and the outer end of driving rod (8) is rotatably connected with the end of rotating rod (11) away from connecting frame (4).

2. A new air suspension structure according to claim 1, characterized by: The left and right ends of connecting frame (4) are fixedly installed with ear plate (12), the outer end of driving rod (8) is fixedly installed with rotating block (10), one end of rotating rod (11) is rotatably connected with ear plate (12) by shaft pin, and the other end is rotatably connected with rotating block (10) by shaft pin.

3. A new air suspension structure according to claim 1, characterized in that: The outer end of driving rod (8) is slidably sleeved with guide sleeve (9), and the front and rear ends of guide sleeve (9) are fixedly connected with the inner wall of installation frame (1) by connecting block.

4. The novel air suspension structure according to claim 1, characterized by: The left and right ends of each installation frame (1) are fixedly connected with the lower end of support frame (2) by bolt, and the upper end of support frame (2) is fixedly connected with the lower end of vehicle body by bolt.

5. A new air suspension structure according to claim 1, characterized by: The sliding component includes sliding groove (5) and sliding block (13), the sliding groove (5) is arranged on the side wall of the front and rear ends of installation frame (1), the sliding block (13) is fixedly installed on the side wall of the front and rear ends of push plate (7), and the sliding block (13) is located in the inner side of sliding groove (5).

6. A new air suspension structure according to claim 5, characterized by: The upper and lower ends of sliding block (13) are provided with box body (14), the outer end of box body (14) is fixedly welded with fixed plate (15), and the fixed plate (15) is fixed on the outer wall of the upper and lower ends of sliding block (13) by bolt.

7. A new air suspension structure according to claim 6, characterized by: A plurality of arc-shaped holes (16) are evenly arranged on the outer end of box body (14), a plurality of rolling balls (17) are rotatably connected in each arc-shaped hole (16), two-thirds of the rolling balls (17) are located in box body (14), and one end of the rolling balls (17) is rotatably connected with the outer end of sliding block (13).

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