Overflow protection valve with built-in reset function.

Abstract

ocr An overflow protection valve includes a valve body that comprises the inlet, outlet, and pressure relief section. The inlet, including the outlet, and the pressure relief valve are positioned in the pressure relief section of the equipment. A new valve is installed inside the pressure relief valve, and a push rod for an overflow protection device is also installed. The inlet includes a flow-stopping component that blocks the outlet when under pressure. Flow exceeds the set limit when the push rod is moved by force; one end of the push rod moves. At the position where the flow-stopping component blocks the outlet channel after abnormal blockage, simply... The push rod operation moves the flow-stopping component to release the obstruction; the user can then release the obstruction. The overflow protection device for fluids can be easily prevented by operating the device again.

Claims

ocr1. An overflow control valve is assembled with a valve body (1) that includes the inlet (11), outlet (12), and pressure relief section (13); the inlet (11) that includes the outlet (111); a pressure relief valve (2) that is positioned in the pressure relief section (13); and a resetter (4) that is installed inside the pressure relief valve (2); the resetter (4) that includes the push rod (41); an overflow control device (3) that is installed inside the inlet (11); and an overflow control device (3) that is assembled with a flow-stopping component (31) that blocks the outlet (111) when the fluid pressure exceeds a set limit. When the push rod (41) is moved by force, one end of the push rod (41) moves to a position where the flow-stopping component (31) blocks the outlet (111).2.An overflow protection valve as requested in claim 1, where the neck (14) is located between the inlet (11) and the pressure relief section (13), the neck (14) contains a channel (141), the pressure relief valve (2) includes a blocking piece (21), a flexible element (22), and a valve assembly (23), the blocking piece (21) is secured inside the inlet (11) and includes the first through hole (211), the flexible element (22) is located between the blocking piece (21) and the valve assembly (23), the valve assembly (23) contacts the dowel (14) and includes the second through hole (231), the pushbutt (41) extends through the first through hole (21), the second through hole (231), and the channel (141)3.An overflow protection valve as requested in claim 2, in which the push rod (41) is incorporated with a connected stem body (411) and an operating button (412), the stem body (411) partially passes through the second through hole (231) and the passage (141), the stem body (411) is enclosed by a flange (411) located on one side of the valve assembly (23) facing the inlet (11), the flange (411l) cannot pass through the second through hole (231), the button The operating button (412) extends through the first through hole (211), the resetting device (4) includes a spring (42) which is biased between the operating button (412) and the valve assembly (23).

4. The overflow protection valve as requested in claim 3, where the operating button (412) appears as a bell-shaped button.

5. The overflow protection valve as requested in claim 2, where the valve assembly (23) contacts the neck (14) by a flexible washer (232). 6.An overflow protection valve as requested in claim 2, in which the operating button (412) is assembled with a button head (4121) and a button body (4122), one of the two ends of the button body (4122) is inserted into the button head (4121), and the other of the two ends of the button body (4122) is extended through the first through hole (211);