Self-operated constant flow valve

Abstract

The invention discloses a self-operated constant flow valve. The self-operated constant flow valve is detachably connected between a stop valve and a flushing valve, and comprises a valve body assembly, a pressure-bearing moving block and a water amount control spring, wherein a water inlet port is formed in one side of the valve body assembly, a water outlet port is formed in the other side of the valve body assembly, the water inlet port and the water outlet port are detachably connected with the stop valve and the flushing valve separately, a water flowing channel communicating with the water inlet port and the water outlet port is formed in the valve body assembly, and a spring limiting pore plate is arranged at the position, close to the water outlet port, in the water flowing channel; the pressure-bearing moving block is arranged in the water flowing channel; and the water volume control spring is arranged in the water flowing channel, one end of the water amount control spring abuts against one side of the spring limiting hole plate, and the other end of the water volume control spring is fixedly connected with one side of the pressure-bearing moving block. According to theinvention, the water amount control spring stretches and retracts through a water flow impact force, so that the overflowing sectional area of water flow is changed, and the purpose that the water flow of all branches is more balanced is achieved. The problems that in the prior art, near-end pressure difference is large, water flow is sufficient and prone to splashing, far-end pressure differenceis small, and water flow is little and thorough flushing cannot be realized are solved.

Description

technical field [0001] The invention relates to the technical field of flow valves, in particular to a self-operated constant flow valve. Background technique [0002] Various brands of stool flush valves, urinal flush valves, faucets, bath showers and other sanitary ware in the market all use stop valves to control the flow of water, especially when there are multiple branches connected to the water supply equipment on a main pipe. Such as expressway service areas, stations, airports, stadiums, dormitories, hospitals, schools, kindergartens and other centralized public toilets and other places with obvious water consumption peaks, the water flow may be large and sometimes small, sometimes strong and sometimes weak due to fluctuations in water pressure. It is easy to cause a large pressure difference on the proximal branch, and the water flow is sufficient and easily splashes out of the sanitary ware. The use feeling is poor and water resources are wasted, while the pressure...

AI Technical Summary

Problems solved by technology

[0002] Various brands of stool flush valves, urinal flush valves, faucets, bath showers and other sanitary ware in the market all use stop valves to control the flow of water, especially when there are multiple branches connected to the water supply equipment on a main pipe. Such as expressway service areas, stations, airports, stadiums, dormitories, hospitals, schools, kindergartens and other centralized public toilets and other places with obvious water consumption peaks, the water flow may be large and sometimes small, sometimes strong and sometimes weak due to fluctuations in water pressure. It is easy to cause a large pressure difference on the proximal branch, and the water flow is sufficient and easily splashes out of the sanitary ware. The use feeling is poor and water resources are wasted, while the pressure difference at the far end is small, the water output is small, the rinse is not clean after many times, and the source of residual fecal odor continues Scatter, affect the air and look and feel, and easily cause waste of water resources

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