Flush valve for public washroom

Abstract

The invention relates to the technical field of water valves, and discloses a flush valve for a public washroom. A pull rod is fixedly connected to the outer side of a gear shaft, a rack in engaged transmission with the gear shaft is movably connected with a sleeve hole in a sleeved manner, a notch is formed in the middle of the rack, an end of a driving shaft is of a ratchet wheel structure and movably connected with a one-way gear in a sleeved manner, power gears are fixedly connected to two ends of a valve element, axial sliding grooves are uniformly formed in the outer ring of the valve element, radial sliding grooves are formed in the positions, located at two ends of the axial sliding grooves, of the valve element, sliding plates are symmetrically and movably connected to two ends of the axial sliding grooves in a sleeved mode, a baffle is movably connected to the top of a hydraulic cavity in a sleeved mode, a rotating wheel in engaged transmission with the power gears is movably arranged in a transmission cavity, and top blocks are uniformly arranged at the outer ring of the front surface of the rotating wheel at intervals. Through the arrangement of the valve element structure, the cooperation with the transmission part, the baffle and other structures, and the arrangement of the rack with the notch, the overall service lifetime of a valve body is prolonged, and water is saved.

Description

technical field [0001] The invention relates to the technical field of water valves, in particular to a flushing valve for public toilets. Background technique [0002] There will be a urinal in the public toilet, and the structure that controls the flushing of the urinal is a flush valve. The flush valve is equivalent to a switch. When in use, press down the switch of the valve to release the water pressure for flushing. The existing flushing valves have various structures, but the basic structure and principle are the same, that is, the spring is used to hold the valve core and block the water. When the switch is opened, the valve core is opened to release the water pressure inside the water pipe. Its structure and principle are simple and widely used, but there are still some shortcomings: [0003] 1. The flush valve is installed between the water pipe and the urinal. The valve core inside the flush valve is used to control the water stop and water outlet, so that the in...

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Problems solved by technology

[0003] 1. The flush valve is installed between the water pipe and the urinal. The valve core inside the flush valve is used to control the water stop and water outlet, so that the inside of the flush valve is divided into upper and lower parts: the upper part connected to the water pipe and the upper part. The lower half connected with the urinal, and there are a large number of bacteria and pollutants in the urinal itself, which will enter the interior of the valve body through volatilization, etc., thereby causing corrosion damage to the valve core, etc., and also has certain Pollution, and when the valve core is corroded, it may cause the valve body to spray water, which not only has safety problems but also wastes water;

[0004] 2. When using the flush valve, the internal valve core is opened by pressing and other means to connect the upper and lower chambers of the valve body. This structure is simple, but the upper half and the lower half of the valve core are in different water Under pressure, that is, the top of the valve core will be easily deformed under high water pressure for a long time, which will affect the sealing performance of the valve core, greatly reducing the service life of the valve core, and when the pressure rod of the valve body When there is a problem, the valve core may be normally open, so that the water will be flushed all the time, causing a waste of water source, and at the same time, it cannot be controlled, and some people will always press the pressure lever during daily flushing. Too much water is not in line with the purpose of energy saving and environmental protection

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