Anti-explosion seat air spring

Abstract

The utility model relates to an anti-explosion seat air spring, which belongs to the technical field of air springs and comprises a seat air spring upper margin plate, a seat air spring lower margin plate and a rubber air bag, the seat air spring upper margin plate and the seat air spring lower margin plate are connected with the rubber air bag, and the joint is sealed. The seat air spring upper edge plate and the seat air spring lower edge plate are both provided with threaded grooves, the seat air spring upper edge plate is provided with an air nozzle, the seat air spring upper edge plate is evenly and fixedly connected with supporting rods, and the seat air spring lower edge plate is fixedly connected with a damping oil cylinder. According to the air spring, the secondary buffering assembly is arranged in the air spring, when the air spring bears large pressure, the air spring deforms, the damping oil cylinder and the spring buffering assembly in the air spring can buffer the pressure and support the air spring when the air spring deforms to a certain degree, and therefore explosion caused by deformation due to excessive pressure bearing is prevented, and the service life of the air spring is prolonged. Therefore, the buffering capacity and the anti-explosion capacity of the air spring can be further improved.

Description

Technical Field

[0001] This utility model relates to the field of air spring technology, and in particular to an explosion-proof seat air spring. Background Technology

[0002] Air springs utilize the high pressure, compressibility, and release properties of sealed air to achieve static load-bearing and dynamic rebound. They have the functions of mitigating impacts, reducing vibrations, maintaining the consistency of the vehicle's natural frequency, and improving ride comfort.

[0003] A search revealed that Chinese patent CN202123221234.3 discloses an air spring for car seats with excellent explosion-proof performance. Through the cooperation of the working mechanism and the explosion-proof mechanism, an air spring for car seats with excellent explosion-proof performance is achieved, which greatly improves the explosion-proof effect of the air spring body. Even after long-term use, the air spring body will not break when encountering other pressure effects, which greatly extends the service life of the air spring and avoids unnecessary economic losses. The auxiliary telescopic rod and auxiliary spring are set to further improve the shock absorption effect of the air spring.

[0004] The above-mentioned technical solution has the following defects. Although such an air spring structure is equipped with a limiting component, which can buffer under high pressure and prevent rupture, thus achieving an explosion-proof effect, in actual use, the limiting component is external and is easily affected by environmental factors and aging, affecting the explosion-proof and buffering effect. In order to ensure the explosion-proof and buffering performance of the seat air spring, an explosion-proof seat air spring is proposed. A secondary buffer component is set inside the air spring. When subjected to high pressure, the air spring deforms. The internal damping cylinder and spring buffer component can buffer the pressure and provide support when the air spring deforms to a certain extent, thereby preventing excessive pressure deformation from causing an explosion. This can further improve the buffering capacity and explosion-proof capacity of the air spring.

[0005] In view of this, this work improves and solves the above problems. Through dedicated research and application of theoretical principles, a technical solution with a reasonable design that can effectively improve the above defects has finally been proposed.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the general background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] This invention provides an explosion-proof seat air spring, which solves the problems mentioned in the background above, ensuring the cushioning effect and explosion-proof performance of the seat air spring. The secondary cushioning explosion-proof components are all inside the seat air spring, thus having better aesthetics and service life.

[0008] The solution to the above-mentioned technical problems of this utility model is as follows: An explosion-proof seat air spring includes an upper edge plate, a lower edge plate, and a rubber airbag. The upper and lower edge plates are connected to the rubber airbag, and the connection is sealed. Both the upper and lower edge plates are provided with threaded grooves. The upper edge plate is provided with an air nozzle. Support rods are uniformly fixedly connected to the upper edge plate. A damping cylinder is fixedly connected to the lower edge plate. A load-bearing rod is slidably connected to the damping cylinder. A piston is fixedly connected to the load-bearing rod. A one-way check valve is uniformly fixedly connected to the piston. A partition plate is fixedly installed on the damping cylinder. The damping cylinder is divided into a working chamber and an oil storage chamber by the partition plate. Overflow holes are uniformly opened on the partition plate. A buffer spring is provided on the outer wall of the load-bearing rod. A receiving plate is fixedly connected to the top of the load-bearing rod. A ring is provided on the outer wall of the rubber airbag.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the upper edge plate of the seat air spring is provided with a groove, the air nozzle is disposed in the groove, and a sealing plug is engaged with the groove, which can cover the groove to protect the air nozzle.

[0011] Furthermore, the support rod is fixedly connected to a hemispherical rubber pad to prevent the support rod from impacting the receiving plate and causing damage.

[0012] Furthermore, the damping cylinder has a sliding hole corresponding to the load-bearing rod, and the inner wall of the sliding hole is sealed with a sealing gasket, so that the load-bearing rod can slide smoothly at the damping cylinder.

[0013] Furthermore, four support rods are provided, and four damping cylinders are provided corresponding to the support rods.

[0014] Furthermore, the two ends of the buffer spring are fixedly connected to the receiving plate and the damping cylinder, respectively.

[0015] Furthermore, a cushioning pad is fixedly installed on the inner wall of the receiving plate to prevent the receiving plate from being damaged by impact.

[0016] Furthermore, the diameter of the piston is adapted to the inner wall of the working chamber, so that the piston can slide stably on the inner wall of the working chamber of the damping cylinder.

[0017] This utility model provides an explosion-proof seat air spring, which has the following advantages:

[0018] 1. When compressed, the rubber air bladder between the upper and lower edge plates of the seat air spring can deform to provide pressure cushioning. When the pressure is large, the support rod presses against the receiving plate. When the load-bearing rod retracts into the damping cylinder, the buffer spring can be compressed to buffer the pressure. The piston at the bottom of the load-bearing rod can slide and squeeze the damping oil in the working chamber of the damping cylinder. Under pressure, the damping oil can be forced from the working chamber into the oil storage chamber through the overflow hole, thereby distributing the buffering pressure of the external air spring. This triple buffer component allows the seat air spring to buffer pressure in combination, thus having a better buffering effect.

[0019] 2. When the piston moves to the bottom of the inner wall of the damping cylinder, the air spring will no longer deform, thus preventing the air spring from exploding due to excessive pressure and deformation.

[0020] 3. This type of explosion-proof seat air spring structure has a secondary buffer component inside the air spring. When subjected to greater pressure, the air spring deforms, and the internal damping cylinder and spring buffer component can buffer the pressure and provide support when the air spring deforms to a certain extent, thereby preventing excessive pressure deformation from causing an explosion. This further improves the buffering capacity and explosion resistance of the air spring.

[0021] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of an explosion-proof seat air spring provided in one embodiment of the present invention;

[0024] Figure 2 A three-dimensional rendering of an explosion-proof seat air spring provided for an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of the damping cylinder in an explosion-proof seat air spring according to an embodiment of the present invention;

[0026] Figure 4 This is a bottom view of the upper edge plate of an explosion-proof seat air spring according to an embodiment of the present invention.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Upper edge plate of seat air spring; 2. Lower edge plate of seat air spring; 3. Rubber airbag; 4. Threaded groove; 5. Air nozzle; 6. Sealing plug; 7. Support rod; 8. Hemispherical rubber pad; 9. Damping cylinder; 10. Load-bearing rod; 11. Piston; 12. One-way check valve; 13. Divider plate; 14. Oil overflow hole; 15. Buffer spring; 16. Receiving plate; 17. Buffer rubber pad; 18. Ring clamp. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0030] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] like Figure 1-4As shown, an explosion-proof seat air spring includes an upper edge plate 1, a lower edge plate 2, and a rubber airbag 3. The upper edge plate 1 and the lower edge plate 2 are connected to the rubber airbag 3, and the connection is sealed. Both the upper edge plate 1 and the lower edge plate 2 are provided with threaded grooves 4. The upper edge plate 1 is provided with an air nozzle 5. Support rods 7 are evenly fixedly connected to the upper edge plate 1. The lower edge plate 2 is fixed... A damping cylinder 9 is connected, and a load-bearing rod 10 is slidably connected to the damping cylinder 9. A piston 11 is fixedly connected to the load-bearing rod 10. A one-way check valve 12 is uniformly fixedly connected to the piston 11. A partition plate 13 is fixedly installed on the damping cylinder 9. The damping cylinder 9 is divided into a working chamber and an oil storage chamber by the partition plate 13. An overflow hole 14 is uniformly opened on the partition plate 13. A buffer spring 15 is provided on the outer wall of the load-bearing rod 10. A receiving plate 16 is fixedly connected to the top of the load-bearing rod 10. A ring hoop 18 is provided on the outer wall of the rubber airbag 3.

[0033] Preferably, the upper edge plate 1 of the seat air spring is provided with a groove, the air nozzle 5 is disposed in the groove, and a sealing plug 6 is engaged with the groove. The sealing plug 6 can cover the groove to protect the air nozzle 5.

[0034] Preferably, the support rod 7 is fixedly connected to a hemispherical rubber pad 8 to prevent the support rod 7 from impacting the receiving plate 16 and causing damage.

[0035] Preferably, the damping cylinder 9 has a sliding hole corresponding to the load-bearing rod 10, and the inner wall of the sliding hole is sealed by a sealing gasket, so that the load-bearing rod 10 can slide smoothly at the damping cylinder 9.

[0036] Preferably, four support rods 7 are provided, and four damping cylinders 9 are provided corresponding to the support rods 7.

[0037] Preferably, the two ends of the buffer spring 15 are fixedly connected to the receiving plate 16 and the damping cylinder 9, respectively.

[0038] Preferably, a cushioning pad 17 is fixedly installed on the inner wall of the receiving plate 16 to prevent the receiving plate 16 from being damaged by impact.

[0039] Preferably, the diameter of the piston 11 is adapted to the inner wall of the working chamber, so that the piston 11 can slide stably on the inner wall of the working chamber of the damping cylinder 9.

[0040] The specific working principle and usage method of this utility model are as follows: Compressed gas can be delivered into the rubber airbag 3 through the air nozzle 5. When compressed, the rubber airbag 3 between the upper edge plate 1 and the lower edge plate 2 of the seat air spring can deform to provide pressure buffering. When the pressure is large, the support rod 7 presses against the receiving plate 16, which can drive the receiving plate 16 to press down. The pressing down of the receiving plate 16 can drive the load-bearing rod 10 into the damping cylinder 9. When the load-bearing rod 10 is retracted into the damping cylinder 9, the buffer spring 15 can be compressed to buffer the pressure. The piston 11 at the bottom of the load-bearing rod 10 can slide and compress the damping within the working chamber of the damping cylinder 9. The damping oil in the cylinder 9 can be forced from the working chamber into the storage chamber through the overflow hole 14 under pressure, thereby distributing the buffer pressure of the external air spring until the piston 11 moves to the bottom of the inner wall of the damping cylinder 9. At this point, the air spring will no longer deform, thus preventing the air spring from exploding due to excessive pressure and deformation. After the air spring resets, the support rod 7 can be disengaged from the receiving plate 16, and the buffer spring 15 can reset, driving the load-bearing rod 10 to be pulled out of the damping cylinder 9. The piston 11 can reset under the elastic action of the buffer spring 15, and the hydraulic oil can be transmitted to the bottom of the piston 11 through the one-way check valve 12 for buffer protection again next time.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. An explosion-proof seat air spring, comprising an upper edge plate (1), a lower edge plate (2), and a rubber airbag (3), characterized in that: The upper edge plate (1) and lower edge plate (2) of the seat air spring are connected to the rubber airbag (3), and the connection is sealed. Both the upper edge plate (1) and lower edge plate (2) of the seat air spring are provided with threaded grooves (4). The upper edge plate (1) of the seat air spring is provided with an air nozzle (5). The upper edge plate (1) of the seat air spring is uniformly fixedly connected with support rods (7). The lower edge plate (2) of the seat air spring is fixedly connected with a damping cylinder (9). The damping cylinder (9) is slidably connected with a load-bearing rod (10). A piston (11) is fixedly connected to the load-bearing rod (10). The piston (11) is uniformly and fixedly connected to a one-way check valve (12). A partition plate (13) is fixedly installed on the damping cylinder (9). The damping cylinder (9) is divided into a working chamber and an oil storage chamber by the partition plate (13). An overflow hole (14) is uniformly opened on the partition plate (13). A buffer spring (15) is provided on the outer wall of the load-bearing rod (10). A receiving plate (16) is fixedly connected to the top of the load-bearing rod (10). A ring hoop (18) is provided on the outer wall of the rubber airbag (3).

2. The explosion-proof seat air spring according to claim 1, characterized in that, The upper edge plate (1) of the seat air spring is provided with a groove, the air nozzle (5) is provided in the groove, and the groove is fitted with a sealing plug (6).

3. The explosion-proof seat air spring according to claim 1, characterized in that, The support rod (7) is fixedly connected to a hemispherical rubber pad (8).

4. The explosion-proof seat air spring according to claim 1, characterized in that, The damping cylinder (9) has a sliding hole corresponding to the load-bearing rod (10), and the inner wall of the sliding hole is sealed by a sealing gasket.

5. The explosion-proof seat air spring according to claim 1, characterized in that, There are four support rods (7), and there are four damping cylinders (9) corresponding to the support rods (7).

6. The explosion-proof seat air spring according to claim 1, characterized in that, The two ends of the buffer spring (15) are fixedly connected to the receiving plate (16) and the damping cylinder (9), respectively.

7. The explosion-proof seat air spring according to claim 1, characterized in that, The inner wall of the receiving plate (16) is fixedly installed with a buffer pad (17).

8. The explosion-proof seat air spring according to claim 1, characterized in that, The diameter of the piston (11) is adapted to the inner wall of the working chamber.

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