A sealing device for connecting an air spring air bag to a cover plate

Abstract

The invention discloses a sealing device for air spring airbag and cover plate connection, and belongs to the field of sealing devices. The sealing device comprises an upper cover plate, outer buckle rings, an inner buckle ring, a center ring, an annular clamp and an airbag; the center ring mainly achieves a support effect, the outer surface thereof is a wedged surface, and a wedged gradient is alpha; the annular clamp achieves a clamping effect, an inner surface thereof is a wedged surface, a wedged gradient is beta, and beta=alpha+k; and the outer buckle rings peripherally arranged achieve a connecting effect, are opened before installation, are deformed for tightening under restraint of the annular clamp after installation, and are tightly bonded with the airbag and the inner surface of the clamp. The structure is adopted to connect the airbag with the cover plate, so that three bonded surfaces are formed between the cover plate and the airbag, and such problems as air leakage and fall of the air spring caused by infirm sealing of the airbag and the cover plate are preferably improved.

Description

technical field [0001] The invention relates to a sealing device, in particular to a sealing device for connecting an air spring airbag to a cover plate. Background technique [0002] The air spring is an elastic vibration-absorbing element. Its elasticity is mainly provided by the reaction force of the high-pressure gas inside the rubber airbag. It is mainly composed of upper cover plate, air bag, lower cover plate and other components. Air springs are widely used in large passenger cars, high-end cars and heavy-duty trucks due to their good shock absorption effect, easy adjustment of stiffness, nonlinear characteristics, long service life, and effective reduction of body weight. [0003] From a structural point of view, the connection modes between the air spring airbag and the cover plate mainly include HL-type structure, JB-type structure, G-type structure and Z-type structure. The existing air spring production process is relatively complicated, generally rubber mixing...

AI Technical Summary

Problems solved by technology

[0005] In view of the above existing problems, the present invention proposes a sealing device for the connection between the air spring airbag and the cover plate. The airbag is connected with the cover plate, the inner and outer retaining rings, and the center ring to form three joints between the cover plate and the airbag. On the surface, the existing air spring air bag and the cover plate are not tightly sealed, which improves the problems of air leakage and falling off.

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