Sealing structure of air chamber of air spring

Abstract

The utility model discloses a sealing structure of an air chamber of an air spring, which comprises the air spring, the air chamber and an air spring connecting plate, the air spring comprises an upper air spring and a lower air spring, the air spring is made of rubber materials, the air spring is provided with outer side rubber and inner side rubber, and the outer side rubber and the inner side rubber are made of rubber materials. The air spring connecting plates are located at the two ends of the air spring, the sealing cover plates are fixed to the upper portions of the air spring connecting plates through the nuts, vent holes are formed in the sealing cover plates, the flange rings are fixed to the lower portions of the air spring connecting plates, and the nuts penetrate through the air spring connecting plates, the sealing cover plates and the flange rings. A locking washer is fixed below the flange ring, the locking washer is in threaded connection with the nut, an adhesive tape is fixed between the upper air spring and the lower air spring, a waist ring is fixed on the outer side of the adhesive tape, and the waist ring is fixed on the outer side of the air spring through the adhesive tape.

Description

Technical Field

[0001] The utility model belongs to the technical direction of air springs, and specifically relates to a sealing structure of an air spring air chamber. Background Art

[0002] Air springs are springs used in the fields of automobiles, aviation, etc. Compressed air is filled in a retractable closed container, and the spring uses the elasticity of air, commonly known as airbags, airbag cylinders, leather bag cylinders, etc.

[0003] An air spring is a device that fills a sealed container with compressed air and uses the compressibility of the gas to achieve its elastic effect. The air chamber of the air spring, as one of the core components of the air spring, plays the role of sealing and storing gas and providing a charging and discharging channel for the gas. In order to prevent air leakage during the use of the air spring, a sealing structure of the air spring air chamber is proposed, which ensures the sealing of the air chamber by reinforcing the inside and outside of the air spring through the structure. Utility Model Content

[0004] The utility model aims to provide a sealing structure of an air spring air chamber for an existing device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a sealing structure of an air spring air chamber, comprising an air spring, an air chamber and an air spring connecting plate, characterized in that: the air spring comprises an upper air spring and a lower air spring, an adhesive tape is fixed between the upper air spring and the lower air spring, a waist ring is fixed to the outside of the adhesive tape, the adhesive tape fixes the waist ring to the outside of the air spring, an air spring drag pad is fixed to the waist ring, and a soft rubber layer is fixed to the inner wall of the air spring connecting plate.

[0006] The utility model further illustrates that the air spring is made of rubber material, the air spring is provided with an outer rubber and an inner rubber, and the air spring connecting plates are located at both ends of the air spring.

[0007] The utility model further describes that a sealing cover plate is fixed above the air spring connecting plate by a nut, and a vent hole is opened on the sealing cover plate.

[0008] The utility model further illustrates that a flange ring is fixed below the air spring connecting plate, and the nut 8 passes through the air spring connecting plate, the sealing cover plate and the flange ring.

[0009] The utility model further illustrates that a locking washer is fixed below the flange ring, and the locking washer is threadedly connected to the nut.

[0010] The utility model further illustrates that the air chamber is arranged inside the air spring, and a fiber net is reinforced inside the inner rubber of the air spring.

[0011] Compared with the prior art, the beneficial effects achieved by the utility model are: the utility model,

[0012] The adhesive tape is provided to prevent the waist ring from being unstable due to the long-term operation of the air spring;

[0013] By providing the soft rubber layer, the impact force of the compressed gas on the air spring can be reduced when the air spring is squeezed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is an overall cross-sectional schematic diagram of the utility model;

[0017] Figure 3 It is an enlarged schematic diagram of the A area of ​​the utility model;

[0018] In the figure: 1. Sealing cover plate; 2. Flange ring; 3. Air spring; 4. Air chamber; 5. Vent hole; 6. Adhesive tape; 7. Waist ring; 8. Nut; 9. Locking washer; 10. Air spring drag pad; 11. Soft rubber layer; 12. Air spring connecting plate; 13. Upper air spring; 14. Lower air spring. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-3The utility model provides a technical solution: a sealing structure of an air spring air chamber, comprising an air spring 3, an air chamber 4 and an air spring connecting plate 12, the air spring 3 comprising an upper air spring 13 and a lower air spring 14, the air spring 3 is made of rubber material, the air spring 3 is provided with an outer rubber and an inner rubber, the air spring connecting plate 12 is located at both ends of the air spring 3, a sealing cover plate 1 is fixed above the air spring connecting plate 12 by a nut 8, a vent hole 5 is opened on the sealing cover plate 1, and a flange ring 2 is fixed below the air spring connecting plate 12;

[0021] The nut 8 passes through the air spring connecting plate 12, the sealing cover plate 1 and the flange ring 2. A locking washer 9 is fixed below the flange ring 2. The locking washer 9 is threadedly connected to the nut 8.

[0022] An adhesive tape 6 is fixed between the upper air spring 13 and the lower air spring 14, and a waist ring 7 is fixed outside the adhesive tape 6. The waist ring 7 is fixed to the outside of the air spring 3 by providing the adhesive tape 6 to prevent the waist ring 7 from being unstable due to the long-term operation of the air spring 3. The waist ring 7 is fixed with an air spring drag pad 10, which acts as a shock absorber and prevents the upper air spring 13 and the lower air spring 14 from colliding when the air spring 3 is squeezed;

[0023] The air chamber 4 is arranged inside the air spring 3, and the air chamber 4 provides support and shock absorption functions for the air spring 3. A soft rubber layer 11 is fixed to the inner wall of the air spring connecting plate 12. When the air spring is squeezed, the soft rubber layer 11 can reduce the impact force of the compressed gas on the air spring 3.

[0024] The inner rubber of the air spring 3 is reinforced with a fiber mesh, which can reduce the deformation of the air spring 3 when the gas is compressed, thereby reducing the air spring leakage.

[0025] Working principle: The inner layer of the airbag is made of airtight rubber, and the outer layer is made of oil-resistant rubber. The fiber mesh inside the air spring 3 can reduce the deformation of the air spring 3 when the gas is compressed, which leads to air leakage of the air spring. The inner air spring can reduce the impact of the compressed gas on the air spring 3 by setting a soft rubber layer 11, thereby protecting the air chamber 4 from air leakage. The airbag is made into two sections, and a steel waist ring 7 is surrounded between the sections to prevent the middle part from radial expansion. The waist ring 7 is better fixed between the upper air spring 13 and the lower air spring 14 by the adhesive tape 6. The air spring drag pad 10 is set to prevent the two sections from rubbing against each other. Flange rings 2 and sealing cover plates 1 are fixed above and below the air spring connecting plate 12 to seal the airbag. The air source enters from the vent 5 on the sealing cover plate 1. When the bag-type air spring is subjected to external force, the air pressure inside it will change, thereby affecting the stiffness and elasticity of the spring. The sealing of the air chamber 4 is ensured by reinforcing the inner and outer sides of the air spring 3 through the above structure.

[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 sealing structure for an air spring air chamber, comprising an air spring (3), an air chamber (4) and an air spring connecting plate (12), characterized in that: The air spring (3) comprises an upper air spring (13) and a lower air spring (14); an adhesive tape (6) is fixed between the upper air spring (13) and the lower air spring (14); a waist ring (7) is fixed to the outside of the adhesive tape (6); the adhesive tape (6) fixes the waist ring (7) to the outside of the air spring (3); an air spring drag pad (10) is fixed to the waist ring (7); and a soft rubber layer (11) is fixed to the inner wall of the air spring connecting plate (12).

2. The sealing structure of an air spring chamber according to claim 1, characterized in that: The air spring (3) is made of rubber material, the air spring (3) is provided with an outer rubber and an inner rubber, and the air spring connecting plates (12) are located at both ends of the air spring (3).

3. The sealing structure of an air spring chamber according to claim 2, characterized in that: A sealing cover plate (1) is fixed above the air spring connecting plate (12) via a nut (8), and a vent hole (5) is provided on the sealing cover plate (1).

4. The sealing structure of an air spring chamber according to claim 3, characterized in that: A flange ring (2) is fixed below the air spring connecting plate (12), and the nut (8) passes through the air spring connecting plate (12), the sealing cover plate (1) and the flange ring (2).

5. The sealing structure of an air spring chamber according to claim 4, characterized in that: A locking washer (9) is fixed below the flange ring (2), and the locking washer (9) is threadedly connected to the nut (8).

6. The sealing structure of an air spring chamber according to claim 5, characterized in that: The air chamber (4) is arranged inside the air spring (3), and a fiber mesh is reinforced inside the inner rubber of the air spring (3).

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