Valve core of delay self-closing water faucet

Abstract

The invention discloses a valve core of a delay self-closing water faucet. The valve core comprises a valve body, a pressing handwheel and an external adjustment nut, wherein the pressing handwheel and the external adjustment nut are arranged on the valve body; a pressing connecting rod matched with the pressing handwheel is arranged in the valve body; a spring supporting seat sleeved on the pressing connecting rod is arranged in the valve body; a pressing offset spring is arranged between the spring supporting seat and the pressing handwheel; and a delay time adjustment device for guaranteeing the stability of delay time is arranged in the valve body and consists of a water storage cavity, a delay time adjustment seat, a water storage cavity piston arranged in the delay time adjustment seat, a delay time internal adjustment screw matched with the water storage cavity piston and a balance spring sleeved on the water storage cavity piston. The valve core has a delay self-closing function; at high water pressure or low water pressure, the consistency of the delay time can be kept, so that the influence of the water pressure on the valve core is reduced, and the stability of the delay time is improved; and the delay time of closing can be adjusted according to the requirement of a user.

Description

technical field [0001] The invention relates to the field of sanitary products, in particular to a time-delayed self-closing faucet valve core. Background technique [0002] Most of the time-delayed self-closing faucets currently used use fixed grooves or small holes as the water inlet channel technology of the time-delay water storage chamber. Press the hand wheel to drive the piston in the water storage chamber downward. Under the action of water pressure, the piston and the connecting rod are sealed and separated. The water in the cavity is quickly discharged, and after you let go, the piston and the connecting rod are sealed and closed under the simultaneous action of the pressing return spring and the piston return spring, and the piston moves upward. As a result, the piston can only move upwards slowly. After a certain period of time, the piston closes the valve when it rises to the water stop surface of the valve body. Although this kind of faucet can realize the sel...

AI Technical Summary

Problems solved by technology

Although this kind of faucet can realize the self-closing delay function, but because the fixed groove or small hole is used as the water inlet channel technology of the delay water storage chamber, the delay time is too long when the water pressure is low, and the delay time is too long when the water pressure of the delay balance spring is high. Short, the delay time is not adjustable, it is difficult to control the batch consistency of the delay time and the overall delay time is too short

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