tilt control valve

Abstract

Provided is a tilt control valve. A valve cavity is arranged in a valve body, a steel ball and a valve seat are arranged in the valve cavity, the valve seat is provided with a through hole, the upper portion of the through hole is an inverted cone-shaped hole, the lower portion of the through hole is provided with a columnar hole, the ratio of the pore diameter of the position of an opening at the upper end of the inverted cone-shaped hole to the diameter of the steel ball is (0.09-0.98):1, a center hole is formed in a valve cover and communicated with the through hole, a valve core for controlling the through hole to be opened and closed is arranged in the center hole, a control rod is arranged at one end of the valve core close to the through hole, and the vertical distance between the other end of the control rod and the position of the opening at the upper end of the inverted cone-shaped hole is smaller than the height of a spherical cap part in the inverted cone-shaped hole. Compared with the prior art, the tilt control valve has the advantages that a gas source can be cut off once gas appliances are inclined through a certain angle or fall, gas appliance use safety is guaranteed, and personal safety accidents can be effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of control valves, in particular to a tilt control valve used for safety control of gas stoves. Background technique [0002] With the continuous innovation and development of gas appliances at home and abroad, the requirements for the use of stoves are also constantly improving and innovating. Safety and environmental protection have become the first choice of many users. [0003] At present, the gas source valve (or called the meter rear valve, the stove front valve) of household gas stoves usually uses the gas pressure regulating valve that comes with the gas tank to control the opening or closing of the gas source. There is no other gas source control device installed between the gas pressure regulating valve. When people use gas appliances, they often leave because they are busy with other housework. At this time, once the gas appliances are tilted or toppled for some reason, especially the gas ovens u...

AI Technical Summary

Problems solved by technology

When people use gas appliances, they often leave because they are busy with other housework. At this time, once the gas appliances are tilted or toppled for some reason, especially the gas ovens used in the field are more likely to be tilted or toppled. It is easy to cause gas leakage, which may cause safety accidents such as poisoning, fire or explosion

[0004] There are similar tilt control valves in other fields of the prior art, such as: the publication number is CN201372866Y, and the name is a Chinese patent for a motorcycle fuel tank vent pipe control valve, which includes a housing and first and second valves connected to the valve cavity in the housing. A vent pipe joint, a valve plug, a steel ball and a valve seat are provided in the valve chamber, a valve port is provided at the connection between the valve chamber and the first vent pipe joint, a plug is provided on one side of the valve plug to cooperate with the valve port, and the steel ball Located between the other side of the valve plug and the inverted tapered valve seat, when the plug and the valve port cooperate, there is continuous surface contact in the circumferential direction; although the function of cutting off the pipeline after tilting is also realized, But only for the motorcycle fuel tank, usually there is almost no pressure in the motorcycle fuel tank, and the gas source used by the gas appliance has a relatively high pressure. The motorcycle fuel tank breather control valve needs to be turned 180 degrees to turn the gas pipeline Cut off, and it is very dangerous for gas appliances to tilt more than 30 degrees, and it is very easy to cause safety accidents caused by gas leakage, so it is not suitable for use in gas appliances

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