Working principle: The key technology is to push the push ring forward or backward by using the magnetic characteristic principle of "like charges repel, opposite charges attract", and at the same time, use the cooperation of magnetic force and spring recoil force to drive the switch.
Moreover, the more switching times, the better sealing performance and the longer service life of pipeline gas self-closing valve. The invention has the technical functions of no external leakage, over-temperature protection, over-current protection, over-voltage protection, convenient installation, energy saving and emission reduction.
Extended data:
The air valve is leaking. Traditional valves generally consist of air inlet, air outlet and valve stem seal. After the valve stem switch was used for a period of time, the valve stem seal was worn, resulting in gas leakage, which caused us to smell an unpleasant smell when we passed the kitchen.
If there is an air valve with only one inlet and one outlet instead of the traditional air valve, then this problem can be solved. The pipeline gas self-closing valve is realized according to this concept. The whole valve body is made of copper rod, which can pass in and out at one time, thus solving the problem of air leakage caused by wear of valve stem switch.
This is the key of pipeline gas self-closing valve. When the above-mentioned gas leakage occurs, its built-in switch can automatically cut off and close the gas source. After the hose is connected, the valve switch must be manually reopened to be used normally. Therefore, gas explosion caused by external leakage is effectively prevented.
Baidu encyclopedia-pipeline gas self-closing valve