Rotary switching valve

Abstract

The invention provides a rotary switching valve. The valve comprises a valve body, wherein the valve body is provided with a valve body water inlet and n valve body water outlets; a positioning joint, a switching swing arm and a gland are arranged in turn in the valve body; the positioning joint is provided with a water flow hole; the switching swing arm is rotatably arranged in the valve body and provided with n switching swing arm water inlets matched with the water flow hole; each switching swing arm water inlet is communicated with a switching swing arm water outlet through an independentpassage formed in the switching swing arm respectively; n+1 sealing rings arranged in turn on the outer wall of the switching swing arm at intervals are connected with the inner wall of the valve body; an annular groove is formed between every two adjacent sealing rings respectively; each annular groove is provided with the switching swing arm water outlet respectively; and n annular grooves correspond to a valve body outlet position respectively. The rotary switching valve has the advantages of simple structure, a small number of parts, capability of realizing water current switching of different numbers of channels on the switching valve through simple structural change, and great adaptability.

Description

technical field [0001] The invention relates to a switching valve, in particular to a rotary switching valve without a valve core. Background technique [0002] The rotary switching valve adopts the rotary switching method, which has the characteristics of convenient switching feel. However, most of the rotary switching valves currently on the market need to install a spool on one side of the switching valve, resulting in a complex structure of the switching valve with many parts and volume. Larger and commonly used rotary switching valve products mostly complete the waterway switching between the moving piece and the static piece of the switching spool, that is, the water passing area of ​​the switching spool only exists between the moving piece and the static piece, and there is an excessive The water area is small, the structure is single, the noise is large, the flow rate is small and other defects. Contents of the invention [0003] The present invention provides a r...

AI Technical Summary

Problems solved by technology

[0002] The rotary switching valve adopts the rotary switching method, which has the characteristics of convenient switching feel. However, most of the rotary switching valves currently on the market need to install a spool on one side of the switching valve, which makes the switching valve complex in structure, with many parts and volume. Larger, and the commonly used rotary switching valve products mostly complete the waterway switching between the moving piece and the static piece of the switching spool, that is, the water passing area of ​​the switching spool only exists between the moving piece and the static piece, and there is an excessive Defects such as small water area, single structure, high noise, and low flow

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