Novel one-way valve

Abstract

The invention relates to a new type of one-way valve, which includes a valve body and a flange. The valve body is composed of a flow orifice, an inner part, a sealing part and an outer part connected in sequence. The outer side of the flow orifice and the outer part A flange is respectively connected, and a threaded connection is provided between the two flanges, and the two flanges clamp the flow orifice, the inner part, the sealing part and the outer part through the threaded connection, The inner part is provided with an inner guide channel, and the inner guide channel communicates with the flow hole in the flow orifice plate, and the outer part is provided with a frustum-shaped through hole. One end protrudes into the frustum-shaped through hole of the outer part, and an outer guide channel is formed between the inner wall of the frustum-shaped through hole of the outer part and the side wall of the sealing part, and the side of the inner guide channel in the inner part A diversion hole is opened on the wall, and the diversion hole communicates with the outer diversion channel through the sealing member. The design has the advantages of structure, easy manufacture, practicality and high efficiency.

Description

technical field [0001] The invention belongs to the field of pipe fitting valves, in particular to a novel one-way valve. Background technique [0002] The one-way valve is that the fluid can only flow along the water inlet, but the outlet medium cannot flow back, commonly known as a one-way valve. One-way valve is also called check valve or check valve. Used in hydraulic systems to prevent reverse flow of oil flow, or used in pneumatic systems to prevent reverse flow of compressed air. There are two types of check valves, straight-through and right-angle. The straight-through check valve is installed on the pipeline with a threaded connection. There are three types of right-angle check valves: threaded connection, plate connection and flange connection. Among them, during the use of the right-angle check valve, when the water flow and pressure in the valve body are too large, the check valve will be stuck, causing unnecessary damage to the check valve, so a new type of ...

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Problems solved by technology

[0003] For the defects in the above-mentioned background technology, the problem to be solved in the present invention is to make the design have the function of self-protection by setting the overflow channel and the overflow valve, so as to prevent the one-way valve from occurring under the condition of excessive water flow and water pressure. damage, reducing safety hazards; providing a new type of check valve

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