Delay automatic closing piece and gas self-closing valve with timing closing function

Abstract

The invention discloses a delay automatic closing piece. The delay automatic closing piece comprises a shell opened at the upper part, a blocked movable piece, an upper moving driving piece arranged in the shell and driving the blocked movable piece to move up, and a compression spring for pushing the blocked movable piece to move up along central axis of the shell; the blocked movable piece, theupper moving driving piece and the compression spring are coaxially arranged with the shell; and the closing piece realize automatic delay closing actions through pushing of the movable piece to moveup through the compression spring under the internal and external pressure difference effect of a blockage piece in the shell, and is low in investment cost and safe and reliable in use process. Meanwhile, the invention further discloses a gas self-closing valve with a timing closing function; the gas self-closing valve comprises a self-closing valve body with an intake port and an exhaust port; alower opening is formed in the bottom of the self-closing valve body; the delay automatic closing piece is mounted on the outer side of the lower opening; and the delay automatic closing piece is mounted at the bottom of the self-closing valve body, so that the self-closing valve achieves the automatic timing closing function under the condition of normal working.

Description

technical field [0001] The invention belongs to the technical field of pipeline gas valves, in particular to a time-delayed automatic closing member and a gas self-closing valve with timing closing function. Background technique [0002] In daily life, there are some potential safety hazards when using household gas pipelines. People often need to close the main gas valve because they often go out, or they forget to close the valve due to negligence when the gas supply of the domestic gas pipeline is suddenly interrupted. It is also easy to cause gas poisoning or cause fires, explosions and other accidents. In the actual use process, it is very important to automatically close the gas self-closing valve in time when the domestic pipeline gas has overpressure, underpressure, hose leakage, hose detachment and gas leakage. One of the indispensable important parts of the machine. [0003] The function of the self-closing valve used today is relatively single. It can only be c...

AI Technical Summary

Problems solved by technology

Therefore, in order to realize the timing closing of the self-closing valve, only electronic devices with timing function or delay function can be used. Usually, an electronic shut-off valve with timing function or delay function is installed separately on the gas pipeline, which increases the input cost and actual installation cost, and inevitably adds at least two leaks to the gas pipeline. point, which increases the safety hazard of the gas pipeline; at the same time, since the electronic cut-off valve with timing function or delay function needs to be equipped with a power supply, the power supply needs to be replaced frequently in actual use, otherwise it cannot be used and the operation is inconvenient; and the electronic cut-off valve The sensitivity and effectiveness of the valve are directly affected by the performance of multiple components, so there are problems such as unreliable action and inability to automatically close on time, and the use effect is poor; When the valve is used, it needs to be connected to the power supply, so it is prone to leakage and electric shock problems

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