Beijing Aeonmed Co., Ltd.

Dianhui Zheng

A flowmeter comprises a lower valve body (), a throttle assembly, a flow tube assembly, an upper valve body (), and a pressure fluctuation suppression assembly. An air inlet, an air outlet and an air flow channel connecting the air inlet and the air outlet are arranged in the lower valve body (); a throttle assembly for adjusting the degree of opening of the air flow channel in the lower valve body () is further disposed on the lower valve body (). The flow tube assembly comprises a flow tube (), an upper base (), a lower base (), and a float (); a vent hole is provided on each of axial centers of the upper base () and the lower base (); the lower base () is arranged at the air outlet of the lower valve body (); a vertical air flow passage and a horizontal air flow passage are arranged in the upper valve body (); the upper base () is arranged at an air inlet of the vertical air flow passage in the upper valve body (); the flow tube () is disposed between the upper base () and the lower base () through two ends thereof that are respectively sleeved on protruding portions of the upper base () and the lower base (); the float () is disposed in the flow tube (). The pressure fluctuation suppression assembly comprises a sealing gasket (), and the sealing gasket () is disposed at an air outlet of the vertical air flow passage.

Flowmeter

Disclosed is a bypass valve comprising a valve body. The valve body has a gas inlet and a gas outlet, wherein a check valve is provided at the air outlet. The check valve comprises a check valve body, a ventilation plate and a first sealing gasket. A first gas passage for gas delivering is provided within the check valve body; ventilation holes are provided on the ventilation plate; the ventilation holes are in communication with the gas outlet; the first sealing gasket is provided between the ventilation plate and the check valve body; and the first gas passage and the ventilation holes are in selective communication with each other via the first sealing gasket. The uni-directional check valve is provided in the gas air outlet in the bypass valve, causing the direction of the gas flow to be unique, overcoming the problem of imprecise concentration of the anaesthetic gas caused by the a gas backflow, and having the advantage of structural technology and better gas tightness.

Growing community of inventors

Beijing, China

Dianhui Zheng