TH2646C3 - Cooking gas valve - Google Patents

Abstract

LPG valve according to this invention There is a valve body where the top of the valve body is the key. Hand crank used to turn on-off the gas that flows into the gas cylinder. In which the lower center axis of the dial Will be the axis that sends the power to move up and down Inside the upper body of the valve body in the direction of rotation within In the handwheel and at the bottom of the power axis is a disc that will move up-down according to the The movement of the transmission axis to open-close at the gas inlet-outlet of the gas cylinder. And at the side in Opposite the channel is a hole for the installation of the non-return valve mechanism, which consists of a hollow body support socket where the outer surface is threaded for fixing the internal surface. The thread of the cavity of the valve body And on the inside of the socket the support is fitted with a piston with one end It is a hollow cylinder and the other end will look like a larger circular key. A hollow cylindrical section with protruding wings to support the spring.

Claims (2)

1. The cooking gas valve consists of a valve body (1) which is hollowed out. On the top of the valve body (1) is a rotary knob (2) that is used to turn on and off the gas flowing into the gas cylinder. The lower center of the rotary knob (2) is a power transmission shaft (5) that moves up and down inside the upper body (6) of the valve body (1) in the direction of internal rotation of the rotary knob (2). At the bottom of the power transmission shaft (5) are a number of grooves (7) to support the O-ring (8). On one side of the valve body (1) is a slot (12) for installing a safety valve assembly to release the pressure in the gas cylinder when the pressure in the gas cylinder exceeds the specified value. The outlet check valve mechanism (14) is installed inside the slot (13) of the valve body (1) with a piston (25) installed inside the support socket (15). The piston (25) is molded as a single piece with One end is a hollow cylinder (26) with a diameter corresponding to the size of the core of the socket (15) so that they can be properly assembled. The hollow cylinder (26) has a number of holes (27) all around to provide a channel for gas to flow in and out of the cooking gas valve. The other end (28) is a larger circular plate than the hollow cylinder (26) with a number of wings (29) extending from the end (28) of the piston (25) to support the spring (30). At the junction between the hollow cylinder (26) and the end (28) of the piston (25) is a groove (31) to support the gasket (24) to prevent gas from leaking out between the socket (15) and the piston (25). The unique feature is the plate (9) that moves up and down according to the movement of the power transmission shaft (5) to open and close at Gas inlet and outlet port (10) of the gas cylinder, where the disc (9) has a cylindrical body with the lower end slightly tapering inward so that it can be properly fitted with the gas inlet and outlet port (10) of the gas cylinder and can move up and down within the upper body (6) of the valve body (1) more flexibly, as well as helping during the filling process to be able to fill gas faster according to the principle of aerodynamic gas movement (AERODYNAMICS). On top of the disc (9) is a button (11) that is inserted into the lower slot of the power shaft (5) and the support socket (15) of the check valve mechanism (14), where the support socket (15) has a hollow body that It has a threaded outer surface (16) for fastening the threaded inner surface (17) of the slot (13), where the outermost end of the support socket (15) has a shoulder (18) that slightly inclines inward, and at the back of the support socket (15) there is a groove (21) to accommodate the O-ring (22) to prevent gas leakage between the inner surface of the slot (13) and the support socket (15), where the inner end of the support socket (15) has a shoulder (23) to accommodate the gasket (24) to prevent gas leakage between the support socket (15) and the piston (25). 2. A cooking gas valve according to claim 1, wherein at the front end of the support (15) is a lock ring (19) fitted to the inside surface of the gas inlet/outlet port (20) to secure the outlet check valve mechanism member (14) from detaching from the gas inlet/outlet port (20).