Waterway control valve unit

Abstract

The invention discloses a waterway control valve unit, comprising a valve element suite, a diaphragm gland, and a shaft sleeve. The diaphragm gland is arranged on the valve element suite. The valve element suite is formed by a rubber diaphragm, a valve element main body, and a watertight rubber pad from top to bottom. The valve element main body is internally provided with a water inlet duct. The lower end of the valve element main body is provided with the watertight rubber pad in a clamping manner. The upper end of the valve element main body is provided with the rubber diaphragm in a clamping manner. A hydraulic pressure balance chamber is formed between the rubber diaphragm and the diaphragm gland. The diaphragm gland is internally provided with a diversion hole communicated with the hydraulic pressure balance chamber. The diaphragm gland is internally provided with a discharge hole which is isolated from the diversion hole. The diaphragm gland is internally provided with a decompression flow channel along the radial direction of the diaphragm gland. The shaft sleeve is sleeved on the rubber diaphragm. A flowing hole is arranged in the shaft sleeve. The waterway control valve unit also comprises a valve body used to install the valve element suite. After the waterway control valve unit is installed with a corresponding waterway control mechanism in a cooperative manner, water hammer vibration can be prevented, and pressure resistance is good, and service life of a product is long.

Description

technical field [0001] The invention relates to a waterway control valve structure, in particular to a waterway control valve assembly. Background technique [0002] Most of the existing domestic water products are controlled by non-contact automatic control valves, which are prone to water hammer vibration when the product is closed. When some users use water in the dead of night, the noise of water hammer vibration has reached the level of disturbing residents. Chinese invention patent application for a solenoid valve seat and waterway structure without water hammer vibration sound (patent application number is 201210438334.8), which is composed of solenoid valve, solenoid valve seat, valve seat cylinder, valve module, and water inlet booster ring connection , change the structure of the solenoid valve valve module to close the water outlet to the structure of the solenoid valve valve module to close the water inlet hole, due to the promotion of the water inlet pressure o...

AI Technical Summary

Problems solved by technology

[0003] But in this invention application, there is following defect in the setting of valve mold: (1) although its water outlet is provided with some ribs and protects valve diaphragm, can not provide enough protection, and valve diaphragm has been extruded water inlet and outlet risk, and it will collide with the water outlet, which is easy to be damaged; (2) the invention application cannot completely eliminate the occurrence of water hammer, although there will be no water hammer between the valve diaphragm and the water inlet, but the valve diaphragm and the water outlet (3) The applicability of this invention application is poor. When the gap between the ribs is too large, the valve diaphragm is easily damaged. When the gap between the ribs is too small, the water flow will be very small, so it is only applicable Suitable for solenoid valves with low water pressure and small flow, not suitable for solenoid valves with high water pressure or large flow requirements

Images