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Safety controller of gas stove

Safety controller of gas stove description/claims

1. Field of the Invention

The present invention relates generally to a gas stove, and more particularly to a safety controller of a gas stove.

2. Description of the Related Art

Conventional stoves using gas as the fuel are classified into gas stove, baking stove, and heating stove, and so on. To increase the safety of these stoves, there are two types of designs for safety. One of which provides a control unit to shut off the stove when the stove is overheating or exceeding a setting time. The second of which provides a structure to prevent the stove from being lit directly by the gas switch. These two designs have many inventions.

Both of the conventional safety designs for stove have to change the current structure of the gas stove that increases the cost and lower the profit. In addition, the conventional gas stoves usually control gas supplying to the burner by a gas switch. However, conventional gas switches cannot control gas of big flow rate (such as 100,000 btu or more natural gas) that limit the application of the conventional gas stoves.

The primary objective of the present invention is to provide a safety controller of a gas stove, which increases the safety of the gas stove without having to change the structure.

The secondary objective of the present invention is to provide a safety controller of a gas stove, which can control the gas of greater flow rate.

According to the objectives of the present invention, a safety controller of a gas stove, which the gas stove is conned to a gas source through a hose, and a gas adjusting device is mounted on an end of the hose connected to the gas source, and the safety controller is provided on the hose between the gas adjusting device and the gas stove to control the gas stove, includes a housing including a base and a cover. The base has a main member with a chamber therein, an input channel connected to the hose and communicated with the chamber, an output channel connected to the gas stove, a gas channel communicating the output channel and the chamber, a check port between the gas channel and the chamber, a lid member with an open end communicated with the chamber, on which the cover is covered to close the open end. A support member is provided in the chamber and associated with the lid member having a hole. A film resides between the lid member and the cover to separate a space between the lid member and the cover into an inner pressure room, which is communicated with the chamber, and an outer pressure room. A control device is provided in the chamber with an end connected to the film through the hole of the support member and the other end associated with the check port to control a flow rate of gas flowing to the gas channel from the chamber. A pressure up electromagnetic valve and an exhaust electromagnetic valve are provided beside the cover to be activated to change pressures in the inner pressure room and in the outer pressure room respectively to make the film deforming for moving the control device.

FIG. 1 is a sketch diagram of a preferred embodiment of the present invention, showing the stove and the gas controller;

FIG. 2 is a sketch diagram of inside of the preferred embodiment of the present invention;

FIG. 3 is a front view of the preferred embodiment of the present invention;

FIG. 4 is a lateral view of the preferred embodiment of the present invention; and

FIG. 5 is a sketch diagram of the preferred embodiment of the present invention, showing the movement of the film and control device toward the outer pressure room.

• Provisional Patent
• Utility Patent

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