The "Gas Cooker Safety Valve Constant Setting Device" developed by Zhongshan Changqing Air-to-Gas Valve Co., Ltd. successfully passed the appraisal by experts of the appraisal committee. Experts believe that the products formed by this achievement are at the leading level of similar products in China. "Gas cooker safety valve constant force device" buffers the force acting on the solenoid valve by adopting the cam push and the front rod to add the compensation spring, which can ensure the stroke and force of the top open solenoid valve are uniform, and reduce the electromagnetic force. Damage to the valve. The cam is processed by powder metallurgy to improve the accuracy and wear resistance of the cam, which is beneficial to the improvement of the life of the safety valve.

After the valve is added to the gas cooker, there is a great improvement in the service life and safety. The experts of the appraisal committee heard the technical work summary report of Changqing Company on the results, reviewed other relevant technical documents, and watched the samples. After questioning, replying and discussing, the appraisal committee unanimously agreed that the results passed the scientific and technological achievements appraisal and suggested further Improve the product range to meet the diverse needs of the market.

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