A flow channel on-off control switch

Abstract

A flow channel on-off control switch, including a main housing, the main housing is a liquid flow channel, the liquid flow channel includes an outer section and an inner section, a sealing rod is slid on the wall of the main housing, and a sealing rod is provided on the sealing rod. The limiting end is used to control the on-off of the liquid flow channel. The other end of the sealing rod is located outside the main casing and is fixedly connected with a handle. An elastic part is arranged between the end surface of the handle and the outer wall of the main casing; The outer sliding sleeve of the annular boss is provided with a nut, and an elastic member is arranged between the nut and the outer wall of the main housing. Through holes I are distributed on the annular boss, and locking pieces are slidably nested in the through holes I. Compared with the prior art, the invention is beneficial in that: the sealing points are concentrated, the sealing rubber ring is mainly relied on when shutting off, and the isolation rubber ring is relied on when opening, and a stable and reliable O-ring radial seal is used to avoid the valve The risk of leakage of multi-point seals of similar products is eliminated, and the structure is simple, which can greatly reduce the size of the valve.

Description

technical field [0001] The invention belongs to the technical field of valves, and in particular relates to a flow channel on-off control switch. Background technique [0002] The existing valve solutions in the market are basically ball valve or gate valve solutions, and the two solutions are similar. Take the ball valve as an example, the ball valve has the function of connecting or disconnecting the pipeline. like figure 2 As shown, when the ball valve is in the disconnected state, the ball valve forms a seal through the compressed seal between the inner ball core 17 and the two-end interface housing 16, so that the pipeline is in the disconnected state. Rotate the upper handle 13 of the ball valve by 90°, drive the intermediate transmission key 14 to rotate, the transmission key 14 drives the ball core 17 to rotate, the inner flow channel of the ball core 17 is consistent with the interface flow channel, and the ball valve is in the open state, such as figure 1 shown....

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems of large volume and easy leakage of the existing valves, the present invention provides a new flow channel on-off control switch

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