Shock absorber with high-pressure air bag

Abstract

The shock absorber with the high-pressure air bag comprises the shock absorption air bag, first connecting plates are fixedly installed on the outer surfaces of the upper end and the lower end of the shock absorption air bag, an air receiving valve is installed on one side of each first connecting plate, and a connecting assembly is fixedly installed on the side, away from the shock absorption air bag, of each first connecting plate. The connecting assembly comprises a supporting plate, a second connecting plate and a pre-tightening structure, the pre-tightening structure comprises a protective cover, a guide column, a sliding groove, a pressure sensor, a compression spring, a sliding rod and a cylindrical ring, threaded grooves are formed in the left end and the right end of the outer surface of one side of the second connecting plate, and a circular groove is formed in the middle of the outer surface of one side of the second connecting plate. According to the shock absorber with the high-pressure air bag, the connecting assembly is provided with the compression spring, after the shock absorption air bag is installed, the compression spring is extruded, pre-tightening force is continuously provided through the counter-acting force of the compression spring, looseness after bolt connection is eliminated, and the installation stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure air bag shock absorber technical field, concretely is a kind of with high pressure air bag shock absorber. BACKGROUND

[0002] High pressure air bag shock absorber (also known as air spring shock absorber or air pressure shock absorber) is a kind of shock-absorbing device using compressed gas (usually high-pressure air or nitrogen) as elastic medium, adjusts air pressure to adapt to different load and road conditions, provides adjustable suspension performance.

[0003] In prior art, the upper part of high pressure air bag shock absorber is connected with vehicle frame or vehicle body tower top by bolt, and the lower end of high pressure air bag shock absorber is connected with suspension lower swing arm or steering knuckle by bolt, and the installation stability is maintained by fastening force of bolt.

[0004] However, high pressure air bag shock absorber in prior art has the following shortcomings:

[0005] 1, bolt connection is easy to loosen: in the process of vehicle driving, bolt is easy to gradually loosen due to bumping and vibration, which leads to the decrease of connection stability between shock absorber and vehicle frame or suspension component, and further affects shock-absorbing effect and driving safety;

[0006] 2, lack of pre-tightening force maintaining mechanism: traditional connection mode only relies on initial fastening force, and cannot continuously provide pre-tightening force in long-term use, so it is difficult to effectively resist loosening caused by vibration;

[0007] 3, without loosening monitoring function: existing shock absorber usually does not have loosening monitoring function, cannot real-time feedback connection state, so users are difficult to find and handle loosening problem in time, which may cause safety hazard.

[0008] Therefore, we propose a kind to be with high pressure air bag shock absorber. CONTENT OF UTILITY MODEL

[0009] (I) technical problem solved

[0010] In view of the deficiencies of prior art, the utility model provides a kind to be with high pressure air bag shock absorber, which is convenient for continuously providing pre-tightening force, eliminating loosening after bolt connection, and has the advantages such as loosening monitoring function, can effectively solve the problems in background art.

[0011] (II) technical scheme

[0012] In order to achieve the above object, the technical scheme adopted by the utility model is: a high-pressure air bag shock absorber, comprising a shock absorbing air bag, first connecting plates are fixedly installed on the outer surfaces of the upper and lower ends of the shock absorbing air bag, a gas valve is installed on one side of the first connecting plate, a connecting assembly is fixedly installed on the side of the first connecting plate away from the shock absorbing air bag, the connecting assembly comprises a supporting plate, a second connecting plate and a pre-tightening structure, the pre-tightening structure comprises a protective cover, a guide column, a sliding groove, a pressure sensor, a compression spring, a sliding rod and a cylindrical ring, and thread grooves are formed in the left and right ends of the outer surface of one side of the second connecting plate, and a circular groove is formed in the middle of the outer surface of one side of the second connecting plate.

[0013] Preferably, the protective cover is fixedly installed on the middle of the outer surface of one side of the second connecting plate close to the shock absorbing air bag, and the number of the supporting plates is two groups, and the two groups of supporting plates are fixedly installed on the left and right ends of the outer surface of one side of the second connecting plate close to the shock absorbing air bag.

[0014] Preferably, the guide column is fixedly installed in the middle of the inner cavity of the protective cover, the sliding groove is formed in the outer surface of one side of the guide column, and the pressure sensor is fixedly installed in the middle of one end of the sliding groove close to the shock absorbing air bag.

[0015] Preferably, the sliding rod penetrates through the sliding groove, and the sliding rod is fixedly installed in the inner cavity of one end of the cylindrical ring close to the shock absorbing air bag.

[0016] Preferably, the outer wall of the sliding rod is in sliding connection with the sliding groove, the outer wall of the cylindrical ring is in sliding connection with the circular groove, and the inner wall of the cylindrical ring is in sliding connection with the outer wall of the guide column.

[0017] Preferably, the compression spring is movably sleeved on the outer wall of one end of the guide column, the compression spring is fixedly installed between the outer surface of one end of the cylindrical ring close to the shock absorbing air bag and one end of the inner cavity of the protective cover, and the outer surface of one end of the cylindrical ring is elastically connected with one end of the inner cavity of the protective cover through the compression spring.

[0018] (Three) beneficial effects

[0019] Compared with the prior art, the utility model provides a high-pressure air bag shock absorber, which has the following beneficial effects:

[0020] 1、the high-pressure air bag shock absorber, through the compression spring structure in the connecting assembly, after the shock absorber is installed, the compression spring is extruded and generates a reaction force, can continuously exert pre-tightening force on the bolt connection part, effectively offsets the loosening tendency caused by the vehicle bumping and vibration, significantly improves the stability and reliability of installation.

[0021] 2. This type of shock absorber with high-pressure airbag has a pressure sensor in the pre-tightening structure. During initial installation, the slide bar squeezes the pressure sensor and records the initial value. If the connection becomes loose, the value monitored by the pressure sensor will decrease accordingly. When the preset threshold is reached, an alarm or feedback will be issued, which makes it easy for users to quickly find and deal with the problem and avoid safety hazards. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a shock absorber with a high-pressure airbag according to the present invention.

[0023] Figure 2 This is a schematic diagram of the connecting component in a high-pressure airbag shock absorber according to the present invention.

[0024] Figure 3 This utility model relates to a shock absorber with a high-pressure airbag. Figure 2 A schematic diagram of the structure after the pre-tightening structure has been removed.

[0025] Figure 4 This is a side cross-sectional view of the pre-tightening structure and the second connecting plate in a shock absorber with a high-pressure airbag according to the present invention.

[0026] In the diagram: 1. Shock-absorbing airbag; 2. First connecting plate; 3. Air valve; 4. Connecting assembly; 5. Support plate; 6. Second connecting plate; 7. Threaded groove; 8. Circular groove; 9. Pre-tightening structure; 10. Protective cover; 11. Guide post; 12. Slide groove; 13. Pressure sensor; 14. Compression spring; 15. Slide rod; 16. Cylindrical ring. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] This embodiment is a shock absorber with a high-pressure airbag.

[0029] like Figures 1-4 As shown, the device includes a shock-absorbing airbag 1. A first connecting plate 2 is fixedly installed on the outer surfaces of both the upper and lower ends of the shock-absorbing airbag 1. An air inlet valve 3 is installed on one side of the first connecting plate 2. A connecting assembly 4 is fixedly installed on the side of the first connecting plate 2 away from the shock-absorbing airbag 1. The connecting assembly 4 includes a support plate 5, a second connecting plate 6, and a pre-tightening structure 9. The pre-tightening structure 9 includes a protective cover 10, a guide post 11, a slide groove 12, a pressure sensor 13, a compression spring 14, a slide rod 15, and a cylindrical ring 16. Threaded grooves 7 are provided at both ends of the outer surface of one side of the second connecting plate 6, and a circular groove 8 is provided in the middle of the outer surface of one side of the second connecting plate 6.

[0030] The protective cover 10 is fixedly installed on the middle of the outer surface of the second connecting plate 6 near the shock-absorbing airbag 1. Two sets of support plates 5 are fixedly installed on the left and right ends of the outer surface of the second connecting plate 6 near the shock-absorbing airbag 1. The guide post 11 is fixedly installed in the middle of the inner cavity of the protective cover 10. A slide groove 12 is formed on one side of the outer surface of the guide post 11. The pressure sensor 13 is fixedly installed in the middle of the slide groove 12 near the end of the shock-absorbing airbag 1. The slide rod 15 passes through the slide groove 12 and is fixedly installed in the inner cavity of the cylindrical ring 16 near the shock-absorbing airbag 1. One end of the shock-absorbing airbag 1; the outer wall of the slide rod 15 is slidably connected to the slide groove 12, the outer wall of the cylindrical ring 16 is slidably connected to the circular groove 8, and the inner wall of the cylindrical ring 16 is slidably connected to the outer wall of the guide post 11; the compression spring 14 is movably sleeved on the outer wall of one end of the guide post 11, and the compression spring 14 is fixedly installed between the outer surface of the cylindrical ring 16 near the shock-absorbing airbag 1 and one end of the inner cavity of the protective cover 10, and the outer surface of one end of the cylindrical ring 16 is elastically connected to one end of the inner cavity of the protective cover 10 through the compression spring 14.

[0031] It should be noted that this utility model is a shock absorber with a high-pressure airbag. The shock absorber airbag 1, the first connecting plate 2, and the air valve 3 described in this article are all prior art and can be effectively known to those skilled in the art. Specific details will not be elaborated further. The connecting component 4 and the support plate 5 are fixed between the first connecting plate 2 and the second connecting plate 6. When the connecting components 4 at both ends of the shock absorber airbag 1 are connected to the vehicle frame or body tower, suspension lower control arm, or steering knuckle by bolts, the cylindrical ring 16 is compressed and slides along the circular groove 8. The ring 16 compresses the compression spring 14 within the protective cover 10. The cylindrical ring 16 drives the slide rod 15 to slide along the slide groove 12. The slide rod 15 compresses the pressure sensor 13 and measures the initial value. When it loosens, the value monitored by the pressure sensor 13 decreases. When it reaches the threshold, it can provide timely feedback. After installation, the compression spring 14 is compressed. After the shock-absorbing airbag 1 is installed, the compression spring 14 is compressed. The reaction force of the compression spring 14 continuously provides preload, eliminating loosening after bolt connection and improving installation stability.

[0032] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-pressure air bag shock absorber, comprising a shock absorbing air bag (1), the upper and lower ends of the shock absorbing air bag (1) are fixedly provided with a first connecting plate (2), and one side of the first connecting plate (2) is provided with an air valve (3), characterized in that: The first connecting plate (2) is fixedly installed with a connecting assembly (4) on the side away from the shock absorbing air bag (1), the connecting assembly (4) comprises a supporting plate (5), a second connecting plate (6) and a pre-tightening structure (9), the pre-tightening structure (9) comprises a protective cover (10), a guide column (11), a sliding groove (12), a pressure sensor (13), a compression spring (14), a sliding rod (15) and a cylindrical ring (16), and the left and right ends of the outer surface of the side of the second connecting plate (6) are provided with threaded grooves (7), and the middle of the outer surface of the side of the second connecting plate (6) is provided with a circular groove (8).

2. A shock absorber with a high-pressure gas chamber according to claim 1, characterized in that: The protective cover (10) is fixedly installed on the middle of the outer surface of the side of the second connecting plate (6) close to the shock absorbing air bag (1), and the number of the supporting plates (5) is two groups, and the two groups of supporting plates (5) are fixedly installed on the left and right ends of the outer surface of the side of the second connecting plate (6) close to the shock absorbing air bag (1).

3. A high-pressure gas-chamber shock absorber according to claim 2, characterized in that: The guide column (11) is fixedly installed in the middle of the inner cavity of the protective cover (10), the sliding groove (12) is provided on the outer surface of the side of the guide column (11), and the pressure sensor (13) is fixedly installed in the middle of the end of the sliding groove (12) close to the shock absorbing air bag (1).

4. A high-pressure gas-chamber shock absorber according to claim 3, characterized in that: The sliding rod (15) penetrates through the sliding groove (12), and the sliding rod (15) is fixedly installed on the end of the inner cavity of the cylindrical ring (16) close to the shock absorbing air bag (1).

5. A high-pressure gas-chamber shock absorber according to claim 4, characterized in that: The outer wall of the sliding rod (15) and the sliding groove (12) are in sliding connection, the outer wall of the cylindrical ring (16) and the circular groove (8) are in sliding connection, and the inner wall of the cylindrical ring (16) and the outer wall of the guide column (11) are in sliding connection.

6. A high-pressure gas-chamber shock absorber according to claim 5, characterized in that: The compression spring (14) is movably sleeved on the outer wall of one end of the guide column (11), and the compression spring (14) is fixedly installed between the outer surface of one end of the cylindrical ring (16) close to the shock absorbing air bag (1) and one end of the inner cavity of the protective cover (10), and the outer surface of one end of the cylindrical ring (16) is elastically connected with one end of the inner cavity of the protective cover (10) through the compression spring (14).

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