Air suspension

Abstract

The utility model provides an air suspension, belongs to the technical field of air suspensions, and aims to solve the problems that as an air spring in the air suspension is made of rubber, when oil stains are attached to the outer side of the air spring for a long time, the aging of the air spring is accelerated, and the service life of the air suspension is influenced. A fixing piece is fixedly installed on the outer side of a shell. The sliding rod is connected to the inner side of the shell in a sliding mode. The piston is slidably connected to the inner side of the shell, and the piston is fixedly connected to the lower end face of the sliding rod; the top shell is fixedly connected to the upper end of the sliding rod. The valve body is fixedly installed on the outer side of the lower end of the shell. The lower end of the connecting hose is fixedly connected to the outer side of the valve body, and the upper end of the connecting hose is fixedly connected to the outer side of the lower end of the fixing piece. The upper ends of the air springs are fixedly connected to the lower end face of the top shell, and the lower ends of the air springs are fixedly connected to the inner sides of the upper ends of the fixing pieces. Through the arrangement of the air spring cleaning device, oil stains on the surface of the air spring are cleaned, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of air suspension, and more specifically, particularly relates to an air suspension. Background Art

[0002] Air suspensions are widely used in the automotive field. An air suspension can adjust the height of the suspension by injecting air into an air spring, enabling the vehicle to better adapt to different road conditions, providing a greater ground clearance and better passing performance. Existing air suspensions generally consist of an air compressor, a control unit, an accumulator, sensors, an air spring extension acceleration sensor, an acceleration sensor, etc. Compressed air is formed by the air compressor, and by adjusting the softness and hardness of the air spring and the damping of the shock absorber, the vehicle can reach a very ideal elastic state.

[0003] According to the air suspension device disclosed in the patent number: CN202321351554.7, which includes a first snap ring. The outer side of the upper surface of the first snap ring is fixedly connected with a connecting column, and the upper end of the connecting column is fixedly connected with a second snap ring. Moreover, a moving groove is opened inside the connecting column. The inner side of the upper surface of the first snap ring is fixedly connected with a first protective plate, and a storage groove is opened inside the first snap ring and the first protective plate. The utility model protects the outer surface of the airbag through the first protective plate and the second protective plate, and the second protective plate is inserted into the storage groove opened inside the first snap ring and the first protective plate. When the airbag is stretched, the second protective plate moves synchronously inside the storage groove, thereby to a certain extent, preventing the airbag from being splashed by sharp stones carried by the wheels, and further to a certain extent, avoiding the situation of damage to the airbag or even direct scratching, resulting in economic losses.

[0004] Based on the above, since the air spring in the air suspension is made of rubber and is affected by many external factors, when oil stains adhere to the outer side of the air spring for a long time, it will accelerate the aging of the air spring, affect the service life of the air suspension, shorten the maintenance interval of the air suspension, and the use cost is relatively high. Moreover, since the air spring in the air suspension is made of rubber, the air spring is easily scratched by foreign objects during use, resulting in damage and economic losses. In addition, the damage of the air spring will also cause the vehicle to be too bumpy, affecting the driving experience of the car. Summary of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides an air suspension to solve the problems that in the existing air suspension, since the air spring is made of rubber and is affected by many external factors, when oil stains adhere to the outer side of the air spring for a long time, it will accelerate the aging of the air spring, affect the service life of the air suspension, and since the air spring in the air suspension is made of rubber, the air spring is easily scratched by foreign objects during use, resulting in damage and economic losses.

[0006] The purpose and efficacy of an air suspension of the present utility model are achieved by the following specific technical means:

[0007] An air suspension includes a housing, a fixing member, a sliding rod, a piston, a top shell, a valve body, a connecting hose, an air spring, an inner shell, a protection mechanism and a maintenance mechanism; the fixing member is fixedly installed on the outside of the housing; the sliding rod is slidably connected to the inside of the housing; the piston is slidably connected to the inside of the housing, and the piston is fixedly connected to the lower end face of the sliding rod; the top shell is fixedly connected to the upper end of the sliding rod; the valve body is fixedly installed on the outside of the lower end of the housing; the lower end of the connecting hose is fixedly connected to the outside of the valve body, and the upper end of the connecting hose is fixedly connected to the outside of the lower end of the fixing member; the upper end of the air spring is fixedly connected to the lower end face of the top shell, and the lower end of the air spring is fixedly connected to the inside of the upper end of the fixing member; the inner shell is threadedly connected to the inside of the lower end of the top shell; the protection mechanism is arranged at the lower end on the top shell; the maintenance mechanism is arranged inside the inner shell.

[0008] Further, the protection mechanism includes: a protection shell; the protection shell is threadedly connected to the outside of the lower end of the top shell.

[0009] Further, the maintenance mechanism includes: a sliding ring and a sliding block; the sliding ring is slidably connected to the inside of the inner shell, and the sliding ring is wrapped around the outside of the lower end of the air spring; there are a plurality of sliding blocks, and the plurality of sliding blocks are all fixedly connected to the outside of the sliding ring, the plurality of sliding blocks are circumferentially arranged on the outside of the sliding ring, and the plurality of sliding blocks are all slidably connected to the inside of the inner shell.

[0010] Further, the maintenance mechanism further includes: a tension spring; there are a plurality of tension springs, the lower ends of the plurality of tension springs are respectively fixedly connected to the upper end faces of the plurality of sliding blocks, and the upper ends of the plurality of tension springs are all fixedly connected to the inside of the upper end of the inner shell.

[0011] Further, the maintenance mechanism further includes: a cleaning cotton and a water-absorbing cotton; the cleaning cotton is pasted on the inside of the upper end of the sliding ring; there are multiple groups of water-absorbing cotton, and the multiple groups of water-absorbing cotton are respectively fixedly connected to the lower end face of the cleaning cotton.

[0012] Further, the maintenance mechanism further includes: a liquid injection core and a sealing rubber member; the liquid injection core is fixedly connected to the inside of the lower end of the sliding ring; the sealing rubber member is fixedly connected to the inside of the liquid injection core.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] The utility model realizes the protection of the air spring through the setting of the protection mechanism. The protection of the air spring is realized by screwing the protection shell on the outside of the lower end of the top shell, which can prevent the air spring from being damaged by external force strikes, reduce economic losses, extend the service life of the air spring, ensure the driving experience of the vehicle, and is simple to disassemble and replace, facilitating the replacement of the air spring and improving the maintenance efficiency. Through the setting of the maintenance mechanism, the cleaning of the oil stain on the surface of the air spring is realized. The rubber cleaner is injected into the sliding ring through the liquid injection core by using a syringe, and the sealing rubber part will seal the cleaner in the sliding ring to prevent the cleaner from leaking. The cleaner in the sliding ring will be absorbed by the water-absorbing cotton to wet the cleaning cotton. When the air spring expands or contracts, it will drive the inner shell to slide by the top shell. The sliding of the inner shell will cause the sliding block to slide under the action of the tension spring. The sliding of the sliding block will drive the sliding ring to slide, making the sliding ring fit on the outside of the air spring. The sliding of the sliding ring will cause the cleaning cotton to slide relative to the air spring, wiping the outside of the air spring to remove the oil stain on the outside of the air spring, preventing the oil stain from adhering to the surface of the air spring for a long time and accelerating the aging of the air spring, extending the service life, extending the replacement interval, and reducing the use cost. Through the setting of the above mechanism, the protection of the air spring is realized, the economic loss is reduced, the service life of the air spring is extended, the driving experience of the vehicle is ensured, the disassembly and replacement are simple, the replacement of the air spring is facilitated, the maintenance efficiency is improved, and the cleaning of the oil stain on the surface of the air spring is also realized, the service life is extended, the replacement interval is extended, and the use cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the air suspension main body of the utility model.

[0016] Figure 2 is a schematic structural diagram of the air spring of the utility model.

[0017] Figure 3 is a schematic cross-sectional structural diagram of the air spring of the utility model.

[0018] Figure 4 is a schematic cross-sectional structural diagram of the protection shell of the utility model.

[0019] Figure 5 is a schematic structural diagram of the cleaning cotton of the utility model.

[0020] Figure 6 is a schematic cross-sectional structural diagram of the sliding ring of the utility model.

[0021] In the figure, the corresponding relationship between the component names and the drawing reference numerals is as follows:

[0022] 1. Housing; 2. Fixing member; 3. Slide bar; 4. Piston; 5. Top shell; 6. Valve body; 7. Connecting hose; 8. Air spring; 9. Inner shell; 10. Protective shell; 11. Sliding ring; 12. Sliding block; 13. Tensile spring; 14. Cleaning cotton; 1401. Water-absorbing cotton; 15. Liquid injection core; 1501. Sealing rubber part. Detailed implementation manners

[0023] The implementation manners of the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] Embodiment 1:

[0025] As shown in the Figures 1-4 accompanying drawings:

[0026] The present utility model provides an air suspension, including a housing 1, a fixing member 2, a slide bar 3, a piston 4, a top shell 5, a valve body 6, a connecting hose 7, an air spring 8, an inner shell 9, a protection mechanism and a maintenance mechanism; the fixing member 2 is fixedly installed on the outer side of the housing 1; the slide bar 3 is slidably connected to the inner side of the housing 1; the piston 4 is slidably connected to the inner side of the housing 1, and the piston 4 is fixedly connected to the lower end surface of the slide bar 3; the top shell 5 is fixedly connected to the upper end of the slide bar 3; the valve body 6 is fixedly installed on the outer side of the lower end of the housing 1; the lower end of the connecting hose 7 is fixedly connected to the outer side of the valve body 6, and the upper end of the connecting hose 7 is fixedly connected to the outer side of the lower end of the fixing member 2; the upper end of the air spring 8 is fixedly connected to the lower end surface of the top shell 5, and the lower end of the air spring 8 is fixedly connected to the inner side of the upper end of the fixing member 2; the inner shell 9 is threadedly connected to the inner side of the lower end of the top shell 5; the protection mechanism is arranged at the lower end of the top shell 5.

[0027] Among them, the protection mechanism includes: a protective shell 10; the protective shell 10 is threadedly connected to the outer side of the lower end of the top shell 5.

[0028] The specific usage method and function of this embodiment: Through the setting of the protective shell 10, the air spring 8 can be protected, preventing the air spring 8 from being damaged due to external force strikes, prolonging the service life and reducing economic losses.

[0029] Embodiment 2:

[0030] On the basis of Embodiment 1, as Figures 4-6As shown in the figure, the maintenance mechanism includes: a sliding ring 11, a sliding block 12, a tension spring 13, a cleaning cotton 14, a water-absorbing cotton 1401, a liquid injection core 15 and a sealing rubber part 1501; the maintenance mechanism is arranged inside the inner shell 9; the sliding ring 11 is slidably connected to the inside of the inner shell 9, and the sliding ring 11 is wrapped around the outside of the lower end of the air spring 8; there are multiple sliding blocks 12, and the multiple sliding blocks 12 are all fixedly connected to the outside of the sliding ring 11. The multiple sliding blocks 12 are circumferentially arrayed on the outside of the sliding ring 11, and the multiple sliding blocks 12 are all slidably connected to the inside of the inner shell 9; there are multiple tension springs 13, and the lower ends of the multiple tension springs 13 are respectively fixedly connected to the upper end faces of the multiple sliding blocks 12, and the upper ends of the multiple tension springs 13 are all fixedly connected to the inside of the upper end of the inner shell 9; the cleaning cotton 14 is pasted on the inside of the upper end of the sliding ring 11; there are multiple groups of water-absorbing cotton 1401, and the multiple groups of water-absorbing cotton 1401 are respectively fixedly connected to the lower end face of the cleaning cotton 14; the liquid injection core 15 is fixedly connected to the inside of the lower end of the sliding ring 11; the sealing rubber part 1501 is fixedly connected to the inside of the liquid injection core 15.

[0031] The specific usage method and function of this embodiment: Use a syringe to inject rubber cleaner into the sliding ring 11 through the liquid injection core 15. The sealing rubber part 1501 will seal the cleaner in the sliding ring 11 to prevent the cleaner from leaking. The cleaner in the sliding ring 11 will be absorbed by the water-absorbing cotton 1401 and then wet the cleaning cotton 14. When the air spring 8 expands or contracts, it will cause the top shell 5 to drive the inner shell 9 to slide. The sliding of the inner shell 9 will cause the sliding block 12 to slide under the action of the tension spring 13. The sliding of the sliding block 12 will drive the sliding ring 11 to slide, so that the sliding ring 11 fits on the outside of the air spring 8. The sliding of the sliding ring 11 will cause the cleaning cotton 14 to slide relative to the air spring 8, wipe the outside of the air spring 8, and remove the oil stain on the outside of the air spring 8.

Claims

1. An air suspension, comprising a housing (1), a fixing member (2), a slide rod (3), a piston (4), a top housing (5), a valve body (6), a connecting hose (7), an air spring (8), an inner housing (9), a protection mechanism and a maintenance mechanism; the fixing member (2) is fixedly mounted on the outer side of the housing (1); the slide rod (3) is slidably connected to the inner side of the housing (1); the piston (4) is slidably connected to the inner side of the housing (1), and the piston (4) is fixedly connected to the lower end surface of the slide rod (3); the top housing (5) is fixedly connected to the upper end of the slide rod (3); the characteristics are: The valve body (6) is fixedly mounted on the outer side of the lower end of the shell (1); the lower end of the connecting hose (7) is fixedly connected to the outer side of the valve body (6), and the upper end of the connecting hose (7) is fixedly connected to the outer side of the lower end of the fixing member (2); the upper end of the air spring (8) is fixedly connected to the lower end surface of the top shell (5), and the lower end of the air spring (8) is fixedly connected to the inner side of the upper end of the fixing member (2); the inner shell (9) is threadedly connected to the inner side of the lower end of the top shell (5); the protective mechanism is arranged at the lower end of the top shell (5); and the maintenance mechanism is arranged on the inner side of the inner shell (9).

2. An air suspension as claimed in claim 1, characterized in that: The protection mechanism comprises: a protection shell (10); the protection shell (10) is threadedly connected to the outer side of the lower end of the top shell (5).

3. An air suspension as claimed in claim 1, characterized in that: The maintenance mechanism comprises: a sliding ring (11) and a sliding block (12); the sliding ring (11) is slidably connected to the inner side of the inner shell (9), and the sliding ring (11) is covered on the outer side of the lower end of the air spring (8); a plurality of sliding blocks (12) are provided, and the plurality of sliding blocks (12) are all fixedly connected to the outer side of the sliding ring (11), and the plurality of sliding blocks (12) are arranged in a circular array on the outer side of the sliding ring (11), and the plurality of sliding blocks (12) are all slidably connected to the inner side of the inner shell (9).

4. An air suspension as claimed in claim 3, characterized in that: The maintenance mechanism further comprises: a tension spring (13); a plurality of the tension springs (13) are provided, the lower ends of the plurality of tension springs (13) are respectively fixedly connected to the upper end surfaces of the plurality of sliding blocks (12), and the upper ends of the plurality of tension springs (13) are all fixedly connected to the inner side of the upper end of the inner shell (9).

5. An air suspension as claimed in claim 4, characterized in that: The maintenance mechanism further comprises: cleaning cotton (14) and absorbent cotton (1401); the cleaning cotton (14) is adhered to the inner side of the upper end of the sliding ring (11); the absorbent cotton (1401) is provided in multiple groups, and the multiple groups of absorbent cotton (1401) are respectively fixedly connected to the lower end surface of the cleaning cotton (14).

6. An air suspension as claimed in claim 5, characterized in that: The maintenance mechanism further comprises: a liquid injection core (15) and a sealing rubber component (1501); the liquid injection core (15) is fixedly connected to the inner side of the lower end of the sliding ring (11); and the sealing rubber component (1501) is fixedly connected to the inner side of the liquid injection core (15).

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