Multi-level fixed-amount draining valve

Abstract

The invention discloses a multi-gear quantitative drain valve, which comprises a valve body, a valve body seat and a valve. The valve body is provided with a water quantity switching mechanism. The multi-gear quantitative drain valve is characterized in that the valve body is partitioned into an upper valve body and a lower valve body by a partition board, the middle of the partition board is provided with a through hole, a one-way valve matched with the through hole is arranged in the through hole, a water injection chamber and a piston glidingly contacted with a cavity of the water injection chamber are arranged in the upper valve body, and the piston is provided with a valve rod which is linked with the water quantity switching mechanism and the valve. The multi-gear quantitative drainvalve has a simple and reasonable structural design, is convenient to mount and adjust, has light handfeel when pressing a key, has multi-gear quantitative drain function, and is environment-friendly.

Description

technical field [0001] The invention relates to the technical field of sanitary ware, in particular to a multi-stage quantitative drainage valve for controlling drainage of a water tank. Background technique [0002] According to statistics, in the daily life of residents, the flushing water of the toilet accounts for 40%-50% of the total daily water consumption of the residents. Wasted water resources have already constituted the most important part of wasted water resources in cities. In addition to the continuous shortage of water resources and the increasing severity of water waste, water saving has become particularly important. Therefore, in recent years, many countries have required that all newly installed toilet cisterns must have a double flush function, wherein when solid waste needs to be removed, the full flush function is used to discharge a large amount of flushing fluid; When removing liquid waste, use the partial flush function to discharge a small amount o...

AI Technical Summary

Problems solved by technology

However, in the full or half row process of the valve body, the force overcome by pressing the button is mainly the button spring and the valve stem spring, and the downforce after the pressure acting on the water on the valve is offset. Here, the role of the spring cannot be ignored. Neglect, because of this, it is used frequently, and it is easy to fail after long-term use, affecting the normal operation of drainage

Moreover, the water output of the dual-stage drain valve in the prior art is generally determined by the structure of the valve body itself, and it is difficult to adjust and control it to realize the function of multi-stage quantitative drainage.

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