Sleeve type air spring

Abstract

The utility model belongs to the technical field of improvement of the damping effect of air springs, and particularly relates to a sleeve type air spring which comprises a base, a buffer spring is fixedly connected to the top of the base, a stress plate is fixedly connected to the top of the buffer spring, and a second air bag is fixedly connected to the bottom of the stress plate. A buffer block is fixedly connected to the bottom of the second air bag, a first air bag is fixedly connected to the top of the base, an air cylinder is fixedly installed at the top of the first air bag, and the driving end of the air cylinder is fixedly connected with the bottom of the buffer block. Downward force is generated when the vehicle vibrates, and when the top of the stress plate is stressed, the first air bag deforms, shrinks, rebounds and restores due to stress, the first air bag conducts first-wave buffering pressure reduction, the driving end of the air cylinder shrinks, relieves for the second time and transfers force to the second air bag for third-time pressure reduction when shrinking to the limit, and the buffering spring reduces the pressure for the fourth time. And the rubber bag relieves pressure for the fifth time, so that the damping capacity is improved, and damage to the vehicle is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of increasing the shock-absorbing effect of air springs, in particular to a sleeve-type air spring. Background Art

[0002] An air spring is an elastic element used in a suspension system or support device. It consists of a rubber sleeve with built-in compressed air and is usually installed in a vehicle's suspension system or an industrial equipment support device. The sleeve-type air spring is designed to provide adjustable support force to adapt to different loads and road conditions.

[0003] The performance of air springs, as the heart of automobile shock absorption, directly affects the smoothness and comfort of the car when driving. When driving on harsh road conditions, existing air springs will cause uneven force on the shock absorbing components. Multiple external forces can easily cause the rubber sleeve to break, resulting in temporary failure of shock absorption, thus shortening the service life of the car and other parts.

[0004] To solve the above problems, we proposed a sleeve-type air spring. Utility Model Content

[0005] The utility model aims to solve the problems in the background technology and proposes a sleeve-type air spring.

[0006] In order to achieve the above-mentioned objectives, the utility model adopts the following technical solutions: a sleeve-type air spring, comprising a base, a buffer spring fixedly connected to the top of the base, a force-bearing plate fixedly connected to the top of the buffer spring, an airbag 2 fixedly connected to the bottom of the force-bearing plate, a buffer block fixedly connected to the bottom of the airbag 2, an airbag 1 fixedly connected to the top of the base, a cylinder fixedly installed on the top of the airbag 1, a driving end of the cylinder fixedly connected to the bottom of the buffer block, a rubber bladder is provided on the outside of the base and the force-bearing plate, and the top and bottom of the rubber bladder are respectively fixedly connected to the force-bearing plate and the base.

[0007] In the above-mentioned sleeve-type air spring, the bottom of the base is fixedly connected to two limit rods 2, the top of the base is fixedly connected to two limit rods 1, the outer wall of the base is fixedly connected to two fixing plates, the two fixing plates are provided with threaded holes, and the outer wall of the force-bearing plate is fixedly connected to a hinge.

[0008] In the above-mentioned sleeve-type air spring, the airbag 1 and the airbag 2 are located in the buffer spring, and the diameter of the base is equal to the diameter of the force-bearing plate.

[0009] In the above-mentioned sleeve-type air spring, the two limit rods 1 and 2 are evenly arranged on the top of the base and the bottom of the force plate, and the two limit rods 1 and 2 are in contact with the steel ring of the buffer spring.

[0010] In the above-mentioned sleeve-type air spring, the buffer block is made of rubber material.

[0011] In the above-mentioned sleeve-type air spring, the airbag 1 and the airbag 2 are equal in size and are vertically arranged on the same horizontal plane.

[0012] Compared with the existing technology, the advantages of this sleeve-type air spring are:

[0013] When the vehicle of the utility model vibrates, a downward force is generated. When the top of the force-bearing plate is stressed, airbag one is deformed and contracted by the force and rebounds to recover. Airbag one performs the first wave of buffering and decompression. The driving end of the cylinder contracts and relieves the pressure for the second time and transmits force to airbag two for the third decompression when it contracts to the limit. The buffer spring reduces the pressure for the fourth time and the rubber bladder reduces the pressure for the fifth time, thereby improving the shock absorption capacity and reducing damage to the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A top view of a sleeve-type air spring proposed by the utility model;

[0015] Figure 2 It is a partial front view of a sleeve-type air spring proposed by the utility model;

[0016] Figure 3 This is a bottom view of a sleeve-type air spring proposed by the utility model;

[0017] In the figure: 1 base, 2 fixing plate, 3 cylinder, 4 limiting rod 1, 5 airbag 1, 6 limiting rod 2, 7 buffer spring, 8 hinge, 9 force plate, 10 airbag 2, 11 fixing block, 12 buffer block, 13 rubber bladder. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-Figure 3A sleeve-type air spring comprises a base 1, a buffer spring 7 is fixedly connected to the top of the base 1, a force-bearing plate 9 is fixedly connected to the top of the buffer spring 7, an airbag 10 is fixedly connected to the bottom of the force-bearing plate 9, a buffer block 12 is fixedly connected to the bottom of the airbag 10, an airbag 1 5 is fixedly connected to the top of the base 1, a cylinder 3 is fixedly installed on the top of the airbag 1 5, a driving end of the cylinder 3 is fixedly connected to the bottom of the buffer block 12, a rubber bag 13 is arranged on the outside of the base 1 and the force-bearing plate 9, the top and bottom of the rubber bag 13 are fixedly connected to the force-bearing plate 9 and the base 1 respectively, the airbag 1 5 and the airbag 2 10 are located in the buffer spring 7, the diameter of the base 1 is equal to the diameter of the force-bearing plate 9, the buffer block 12 is made of rubber material, the airbag 1 5 and the airbag 2 10 are equal in size and are vertically arranged on the same horizontal plane, when the air is assembled in the car, if the car passes through harsh conditions Road conditions, when the car vibrates, a downward force is generated. When the top of the force-bearing plate 9 is stressed, the airbag 1 5 is deformed and contracted by the force and rebounds to recover, and the first wave of buffering and decompression is carried out. At this time, the buffer spring 7 also begins to be deformed by the force and is in a pre-stressed state. When the pressure is too large, the airbag 1 5 is squeezed to the limit and the pressure is transmitted to the cylinder 3 through the buffer block 12. The driving end of the cylinder 3 will shrink and relieve part of the pressure for the second time and transmit force to the airbag 2 10 when it shrinks to the limit. The airbag 2 10 is deformed by the force and rebounds to restore, thereby reducing the pressure for the third time. At this time, most of the pressure has been basically decomposed, the buffer spring 7 reduces the pressure for the fourth time, and the rubber bag 13 reduces the pressure for the fifth time. At this time, various components begin to stretch, and the airbag 1 5, the airbag 2 10, the cylinder 3, the buffer spring 7, and the rubber bag 13 are stretched and reset to restore the overall air spring to its initial state, thereby improving the shock absorption ability and causing less damage to the vehicle.

[0020] The bottom of the base 1 is fixedly connected with two limit rods 2 6, the top of the base 1 is fixedly connected with two limit rods 1 4, the outer wall of the base 1 is fixedly connected with two fixing plates 2, the two fixing plates 2 are provided with threaded holes, and the outer wall of the force-bearing plate 9 is fixedly connected with a hinge 8. If the assembly position of the vehicle air spring is special, the hinge 8 can be used to increase the selectivity of the air spring assembly. The two limit rods 1 4 and the limit rod 2 6 are evenly arranged on the top of the base 1 and the bottom of the force-bearing plate 9. The two limit rods 1 4 and the limit rod 2 6 are in contact with the steel ring of the buffer spring 7. When the air spring is deformed by force and starts to work in shock absorption, the limit rod 1 4 and the limit rod 2 6 can ensure that the buffer spring 7 does not tilt toward the outer wall when it is deformed by force, thereby reducing the life of the air spring. The fixed block 11 can be fixed by bolt threads to enhance the stability of the air spring.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sleeve-type air spring, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a buffer spring (7), the top of the buffer spring (7) is fixedly connected to a force-bearing plate (9), the bottom of the force-bearing plate (9) is fixedly connected to an airbag 2 (10), the bottom of the airbag 2 (10) is fixedly connected to a buffer block (12), the top of the base (1) is fixedly connected to an airbag 1 (5), the top of the airbag 1 (5) is fixedly mounted with a cylinder (3), the driving end of the cylinder (3) is fixedly connected to the bottom of the buffer block (12), the base (1) and the force-bearing plate (9) are provided with a rubber bladder (13) on the outside, the top and bottom of the rubber bladder (13) are fixedly connected to the force-bearing plate (9) and the base (1) respectively.

2. A sleeve-type air spring according to claim 1, characterized in that: The bottom of the base (1) is fixedly connected to two limit rods (6), the top of the base (1) is fixedly connected to two limit rods (4), the outer side wall of the base (1) is fixedly connected to two fixing plates (2), the two fixing plates (2) are provided with threaded holes, and the outer side wall of the force-bearing plate (9) is fixedly connected to a hinge (8).

3. The sleeve-type air spring according to claim 1, characterized in that: The airbag 1 (5) and the airbag 2 (10) are located inside the buffer spring (7), and the diameter of the base (1) is equal to the diameter of the force-bearing plate (9).

4. A sleeve-type air spring according to claim 2, characterized in that: The two limiting rods 1 (4) and the two limiting rods 2 (6) are evenly arranged on the top of the base (1) and the bottom of the force-bearing plate (9), and the two limiting rods 1 (4) and the two limiting rods 2 (6) are in contact with the steel ring of the buffer spring (7).

5. The sleeve-type air spring according to claim 1, characterized in that: The buffer block (12) is made of rubber material.

6. The sleeve-type air spring according to claim 1, characterized in that: The airbag 1 (5) and the airbag 2 (10) are equal in size and are vertically arranged on the same horizontal plane.

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