Double-air-chamber air spring

Abstract

The utility model discloses a double-air-chamber air spring which comprises two rubber air bags, the upper portion of each rubber air bag is connected with an upper connecting plate, the lower portion of each rubber air bag is connected with a lower connecting plate, threaded holes are formed in the ends of the upper connecting plates and the ends of the lower connecting plates, and the threaded holes are connected with the rubber air bags. The rubber air bag is in threaded connection with the upper connecting plate and the lower connecting plate through screws, air inlets are formed in the middle of the rubber air bag and the middle of the upper connecting plate, flanges are arranged in the middle of the rubber air bag and the middle of the upper connecting plate and the middle of the rubber air bag and the lower connecting plate, and a waist ring is fixed to the waist of the rubber air bag. And a rubber telescopic protective sleeve is connected between the upper connecting plate and the lower connecting plate. The device solves the problem that an existing air spring is insufficient in elasticity.

Description

Technical Field

[0001] The utility model belongs to the technical field of pneumatic machinery, and specifically relates to a double-chamber air spring. Background Art

[0002] With the continuous advancement of the automotive field, more and more comfortable cars are being launched. In terms of comfort, air springs play a big role. Air springs are an automotive accessory that can support, cushion, brake, adjust height and adjust angle. Its working principle is to add compressed air to a flexible sealed container and use the compressibility of air to achieve elastic effect. However, air springs also have shortcomings that need to be solved. For example, when the car carries a large mass and carries many people or goods, the elasticity and rigidity of the air spring will be greatly reduced, resulting in reduced shock absorption function, which brings a bad experience to the driver and passengers.

[0003] A double-chamber air spring is now proposed to increase the elasticity of the air spring and improve the driving comfort of drivers and passengers. Utility Model Content

[0004] The utility model aims to provide a double-chamber air spring for existing devices to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a dual-chamber air spring, including a rubber airbag, wherein two rubber airbags are provided, the upper portion of the rubber airbag is connected to an upper connecting plate, the lower portion of the rubber airbag is connected to a lower connecting plate, threaded holes are provided at the ends of the upper connecting plate and the lower connecting plate, and the rubber airbag is threadedly connected to the upper connecting plate and the lower connecting plate with screws.

[0006] The utility model further describes that an air inlet is opened in the middle of the rubber airbag and the upper connecting plate.

[0007] The utility model further illustrates that a flange is arranged between the rubber airbag and the upper connecting plate and the lower connecting plate.

[0008] The utility model further illustrates that a certain distance is set between the rubber airbags.

[0009] The utility model further illustrates that a waist ring is fixed to the waist of the rubber airbag.

[0010] The utility model further illustrates that a rubber telescopic protective sleeve is connected between the upper connecting plate and the lower connecting plate.

[0011] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: the utility model solves the problem of insufficient elasticity of the air spring by arranging a double air chamber for the air spring, improves the overall shock absorption capacity, and brings comfort to the driver and passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a cutaway schematic diagram of the utility model;

[0015] Figure 3 It is the external schematic diagram of the utility model;

[0016] In the figure: 1. Air inlet; 2. Rubber airbag; 3. Waist ring; 4. Flange; 5. Screws; 6. Upper connecting plate; 7. Lower connecting plate; 8. Threaded hole; 9. Rubber telescopic protective cover. DETAILED DESCRIPTION

[0017] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 The utility model provides a technical solution: a double-chamber air spring, including a rubber airbag 2, wherein two rubber airbags 2 are provided, wherein the upper part of the rubber airbag 2 is connected with an upper connecting plate 6, and the lower part of the rubber airbag 2 is connected with a lower connecting plate 7, wherein threaded holes 8 are provided at the ends of the upper connecting plate 6 and the lower connecting plate 7, wherein the rubber airbag 2 is threadedly connected with the upper connecting plate 6 and the lower connecting plate 7 by screws 5, wherein the upper connecting plate 6, the lower connecting plate 7 and the two rubber airbags 2 are connected by screws 5, thereby forming a double-chamber air spring, thereby increasing the elasticity of the air spring, improving the comfort of the driving personnel, and having a compact structure and being easy to install;

[0019] An air inlet 1 is provided in the middle of the rubber airbag 2 and the upper connecting plate 6, and the air inlet 1 provides compressed air to the two rubber airbags 2 to ensure the continuity of the air spring operation;

[0020] A flange 4 is provided between the rubber airbag 2 and the upper connecting plate 6 and the lower connecting plate 7. The flange 4 is connected to prevent air leakage in the air chamber of the rubber airbag 2, thereby improving the sealing performance of the air chamber of the rubber airbag 2.

[0021] A waist ring 3 is fixed to the waist of the rubber airbag 2 to prevent the middle part from radial expansion and prevent the upper and lower sections of the rubber airbag 2 from rubbing against each other;

[0022] A certain distance is set between the two rubber airbags 2 to prevent sliding friction between the two rubber airbags 2 during operation, thereby reducing the service life;

[0023] A rubber telescopic protective cover 9 is connected between the upper connecting plate 6 and the lower connecting plate 7 to prevent small and broken objects from hitting the rubber airbag 2 during driving, thereby causing cracks on the surface of the rubber airbag 2 and reducing its service life.

[0024] Working principle:

[0025] The double-chamber air spring has an air inlet 1 that provides compressed air to the rubber airbag 2. After the inner cavity of the rubber airbag 2 is filled with compressed air, a compressed air column is formed. As the vibration load increases, the height of the air spring decreases, the inner cavity volume decreases, the stiffness of the rubber spring increases, and the effective bearing area of ​​the inner cavity air column increases. At this time, the bearing capacity of the rubber spring increases. When the vibration load decreases, the height of the air spring increases, the inner cavity volume increases, the stiffness of the rubber spring decreases, and the effective bearing area of ​​the inner cavity air column decreases. At this time, the bearing capacity of the rubber spring decreases. The design of two rubber airbags 2 can improve the upper and lower limits of the bearing capacity and the shock absorption capacity, making the driving process smoother, thereby improving the comfort of the driver and passengers.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A dual-chamber air spring, comprising a rubber airbag (2), characterized in that: Two rubber airbags (2) are provided in total. The upper portion of the rubber airbag (2) is connected to an upper connecting plate (6), and the lower portion of the rubber airbag (2) is connected to a lower connecting plate (7). The ends of the upper connecting plate (6) and the lower connecting plate (7) are provided with threaded holes (8). The rubber airbag (2) is threadedly connected to the upper connecting plate (6) and the lower connecting plate (7) by screws (5).

2. A dual-chamber air spring according to claim 1, characterized in that: An air inlet (1) is provided in the middle of the rubber airbag (2) and the upper connecting plate (6).

3. A dual-chamber air spring according to claim 2, characterized in that: A flange (4) is provided between the rubber airbag (2), the upper connecting plate (6) and the lower connecting plate (7).

4. A dual-chamber air spring according to claim 3, characterized in that: A certain distance is provided between the rubber airbags (2).

5. A dual-chamber air spring according to claim 4, characterized in that: A waist ring (3) is fixed to the waist of the rubber airbag (2).

6. A dual-chamber air spring according to claim 5, characterized in that: A rubber telescopic protective sleeve (9) is connected between the upper connecting plate (6) and the lower connecting plate (7).

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