Exhausting structure for upper cover of filter

Abstract

The invention discloses an exhausting structure for the upper cover of a filter. The exhausting structure comprises a shell and an upper cover, wherein the upper cover is movably mounted on the upperend of the shell; a sealing groove is formed at the contact position of the outer side surface of the upper cover and the shell; an O-ring is sleeved in the sealing groove; the inner side of the uppercover is provided with eight sets of venting groove at an equal distance at positions corresponding to the sealing groove; the middle position of the outer side of each venting groove is provided with a contact portion acting on the O-ring; and an exhaust port is formed in one end of each venting groove. The exhausting structure for the upper cover of the filter in the invention is provided withthe venting grooves and blocking pieces, and air is discharged from the sealing groove via the venting grooves, so an exhausting speed is accelerated, air can be completely discharged during water inspection, and the qualified rate of products can be improved; in virtue of the characteristics of softness and plasticity of repairing plastic sheets, the entry of dirt is prevented, requirements on water inspection conditions are met, and air is released; and the exhausting structure is applicable to different working conditions and has good application prospects.

Description

technical field [0001] The invention relates to the technical field of filter assembly, in particular to an exhaust structure of a filter upper cover. Background technique [0002] A filter is an accessory that filters impurities or gases through filter paper. The quality of the filter has a lot to do with the tightness of the filter cover. With the advancement of technology, in overcoming There has been more in-depth research on air leakage and the convenience of sealing, and water testing tests for sealing have appeared; the exhaust structure of the existing filter upper cover has certain disadvantages in use. During the test, due to the air inside the sealing groove, it will slowly overflow in the form of air bubbles in the water, which will seriously affect the production efficiency, and even the air will not be discharged cleanly. After adding the air release groove, It is easy for dirt to infiltrate from the air release groove, contaminate the inside of the shell, and...

AI Technical Summary

Problems solved by technology

[0002] A filter is an accessory that filters impurities or gases through filter paper. The quality of the filter has a lot to do with the tightness of the filter cover. With the advancement of technology, in overcoming There has been more in-depth research on air leakage and the convenience of sealing, and water testing tests for sealing have appeared; the exhaust structure of the existing filter upper cover has certain disadvantages in use. During the test, due to the air inside the sealing groove, it will slowly overflow in the form of air bubbles in the water, which will seriously affect the production efficiency, and even the air will not be discharged cleanly. After adding the air release groove, It is easy for dirt to infiltrate from the air release groove, pollute the inside of the shell, and bring certain adverse effects during use. For this reason, we propose an exhaust structure for the upper cover of the filter

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