Pressure-bearing adjustable water tank closed overflow device

Abstract

The invention discloses a pressure-bearing adjustable water tank closed overflow device which comprises a shell piece, a water inlet port, a pressure gauge, a filter, an adjusting rotary knob assembly, a pressure-bearing spring, a connecting shaft rod, a diaphragm plate, an overflow raft, a gasket and a water outlet port. The shell piece comprises a hollow transverse shell body and a hollow longitudinal shell body. A stepped groove is formed in the transverse shell body. The overflow raft and the gasket are installed in the stepped groove. The overflow raft, the connecting shaft rod, the pressure-bearing spring and the adjusting rotary knob assembly are sequentially connected. The diaphragm plate is installed in the longitudinal shell body. A through hole is formed in the middle of the diaphragm plate. The connecting shaft rod penetrates through the through hole in the middle of the diaphragm plate. The water inlet port and the water outlet port are formed in the left side end and theright side end of the transverse shell body correspondingly. The filter is arranged in the position, close to the water inlet port, of the transverse shell body. The pressure gauge is arranged betweenthe water inlet port and the filter. It can be ensured that a water tank overflow pipe in a normal state is in a closed state, the overflow pipe does not communicate with external air and the water quality in a water tank cannot be contaminated by the overflow pipe.

Description

technical field [0001] The invention relates to the field of a pressure-bearing sealed overflow device for a water tank, in particular to a pressure-bearing adjustable water tank sealed overflow device. Background technique [0002] As an important supporting component of the box-type secondary water supply equipment, the water tank is an important water storage facility to ensure the safety of the box-type secondary water supply equipment for residential buildings. Whether the overall operation of the water tank is safe or not has a serious impact on the quality of water used by residential residents. As we all know, most of the water tanks of ordinary box-type secondary water supply equipment are equipped with overflow pipes. The overflow pipes are mainly used for: when there is too much water in the water tank, when the overflow pipe and the connection port of the water tank are exceeded, the overflow pipe is discharged outward. However, when the water body in the water ...

AI Technical Summary

Problems solved by technology

As we all know, most of the water tanks of ordinary box-type secondary water supply equipment are equipped with overflow pipes. The overflow pipes are mainly used for: when there is too much water in the water tank, when the overflow pipe and the connection port of the water tank are exceeded, the overflow pipe is discharged outward. However, when the water body in the water tank does not exceed the connection port between the overflow pipe and the water tank, there is no water body in the overflow pipe, and the overflow pipe is connected with the external atmosphere. Pollutants and tiny biological bacteria in the atmosphere can easily pass through the overflow pipe. The flow pipe enters the water tank, and then pollutes the water body in the water tank, seriously affecting the safety of domestic water for residential residents

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