Diaphragm type air tank without negative pressure water supply system

Abstract

The invention discloses a diaphragm type air pressure tank of a negative-pressure-free water supply system. The diaphragm type air pressure tank structurally comprises a tank body and a bottom support. The tank body is provided with an air pressure meter, a hand hole and an air-leakage-prevention inflation opening. A water inlet and outlet, a sewage discharging opening and a supporting plate are arranged on the bottom support. The air pressure tank has the beneficial effects that through an air inflation device, an inserting pipe is pushed to move downwards, a piston is driven to open an air inlet in a through pipe, the air inlet can be inflated, after inflation is finished, an air inflation device is pulled out to drive the inserting pipe, after the inserting pipe is pulled out, through the elastic return action of a pull rope, the piston is driven to spring back, and moves upwards in the through pipe, the air inlet is blocked again, air pressure in the air pressure tank cannot be leaked, when the air inflation device is pulled out, the inflation opening does not need to be rapidly sealed, direct pulling out is achieved, accordingly, it can be ensured that when the air inflation device is pulled out, air leakage is avoided, it can be ensured that under the condition that the air inflation opening is not used for a long time, air leakage is avoided, and the air inflation of theair pressure tank is more convenient and rapid.

Description

technical field [0001] The invention relates to the field of air pressure equipment, in particular to a diaphragm type air pressure tank without a negative pressure water supply system. Background technique [0002] The pressure tank is a very important link in the water supply system. The pressure of the water supply is controlled by the air pressure inside the pressure tank, so that the water can be sent to a high place smoothly, so the sealing of the pressure tank has become an important issue. [0003] Aiming at the current diaphragm type pressure tank, a relative solution has been formulated for the following problems: [0004] Existing diaphragm-type air pressure tanks need to be inflated through the inflation port, and the inflation device needs to be pulled out after the inflation is completed. When pulling out, because the air pressure inside the pressure tank is too large, the inflation port is squeezed by air, causing the pressure tank The internal air pressure l...

AI Technical Summary

Problems solved by technology

[0004] Existing diaphragm-type air pressure tanks need to be inflated through the inflation port, and the inflation device needs to be pulled out after the inflation is completed. When pulling out, because the air pressure inside the pressure tank is too high, the inflation port is squeezed by air, causing the pressure tank The internal air pressure leaks, so it needs to be blocked quickly by hand to prevent the air pressure inside the air pressure tank from leaking too much, but in this way, the inflation port is not only easy to release the pressure, but at the same time, if the hand speed is not fast enough, it will cause a large amount of air pressure leakage

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