Cover assembly and liquid storing device comprising cover assembly

Abstract

The invention provides a cover assembly. The cover assembly comprises an outer cover and an inner structure supporting the inner space, an air passage communicated with outside air is defined betweenthe inner structure and the outer cover, and the inner structure comprises a two-way ventilating hole extending to the surrounding portion of the base portion of the outer cover and a one-way ventilating hole formed away from the base portion of the outer cover; according to the two-way ventilating hole, when a pipe piece is installed on the cover assembly in a gas tightness mode, air in the pipepiece is exhausted to the outside air through the two-way ventilating hole and an air passage route, thereby defining an air exhausting route, and the outside air is allowed to flow into the pipe piece through the air passage route and the both-way ventilating hole, thereby defining a first air inlet route; according to the one-way ventilating hole, the outside air is allowed to flow into the pipepiece through the air passage route and the one-way ventilating hole, thereby defining a second air inlet route, and air in the pipe piece is not allowed to be exhausted to the outside air through the one-way ventilating hole. The invention further provides a liquid storing device comprising the cover assembly.

Description

technical field [0001] The present application relates to a cover assembly, in particular a cover assembly for use on a brake fluid reservoir of a vehicle braking system. Background technique [0002] Vehicle braking systems typically include a brake fluid reservoir mounted in the engine compartment. The brake fluid reservoir has a brake fluid inlet pipe portion into which brake fluid is supplied, and a cap assembly is attached to the inlet pipe portion. [0003] On the one hand, a seal needs to be provided between the brake fluid inlet pipe and the cover assembly to prevent the brake fluid from leaking out of the inlet pipe when the vehicle is suddenly started or accelerated or decelerated. On the other hand, gas exchange must be allowed between the brake fluid inlet pipe and the cap assembly, for example, in cases such as those described above or in the event of expansion of the brake fluid in the reservoir, the internal pressure of the reservoir would increase , when th...

AI Technical Summary

Problems solved by technology

Because the exhaust gas may be mixed with liquid brake fluid, it is difficult to separate the liquid brake fluid from the exhaust gas with the structure of this common gas passage path, and the brake fluid sealing performance is greatly affected

In addition, this structure is less able to return the separated liquid to the reservoir

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