JP3032411U - Safety device for cassette stove - Google Patents

Abstract

(57) Abstract: The present invention relates to a safety device that operates when the gas pressure of a gas cylinder loaded in a cassette stove rises abnormally. SOLUTION: A stop valve F supported by a spring 2 is provided in a gas passage in a cover, and when a gas pressure rises, a leaf spring C in contact with a valve tail is reversed and an O-ring 3 blocks the gas passage. Then, the gas from the cylinder is stopped.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a safety device in a governor of a cassette stove that is used by loading a small gas cylinder.

[0002]

[Prior art]

 For cassette hobs that are subject to strict inspection because they can be used easily at the table at home, be careful when loading the gas cylinder, prevent gas from leaking from the gas cylinder inside the stove, or be careful when using it. Various safety measures are considered, such as prevention of accidents due to abnormal gas pressure.

However, although the precautions for loading and using the cylinder can be understood by reading the attached cautionary note, it is not possible to deal with processing against abnormal gas pressure from the cylinder and it explodes. It is the cause of the accident.

[0004]

[Means for Solving the Problems]

 The inventor arrived at the present invention as a result of earnest research to prevent accidents on the cassette stove, and achieved the present invention. An O-ring for sealing is attached to this, and if an abnormal gas pressure is generated, the leaf spring operates to move the stop valve and the O-ring automatically shuts off the gas passage to cause an accident. It is to provide a safety device to prevent the above.

[0005]

[Embodiment of device]

 An embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a plan view in which a part of a cassette stove is cut, and shows a positional relationship between a governor (2) and a cylinder (3) which is an essential part of the present invention. Shows. FIG. 2 is a detailed view showing the structure of the safety device of the present invention in the governor (2).

[0006]

【Example】

The gas pressure in the gas cylinder is usually set to ² kg / cm ² . When the gas cylinder (5) is loaded, the gas enters from A in the governor (4) and flows to B without operating the stop valve F supported by the support spring (2) toward the flame port (1). It is ignited and normally burned.

However, when the stove is erroneously operated and the stove is overheated and the gas pressure in the cylinder rises abnormally (for example, 4 kg / cm ^{2 to} 6 kg / cm ² ), the stop valve F is provided with a supporting spring ( It is pushed in the direction of the arrow against 2) to reverse the leaf spring C.

In such a state, the O-ring (3) provided on the shutoff valve F comes into contact with the step D position of the inner wall of the passage to cut off the passage, whereby the gas flow is stopped and the gas is discharged from the flame port (1). The safety device operates without reaching.

When the safety device is released, however, the cylinder with an abnormal gas pressure is removed and replaced with a cylinder with a normal gas pressure (5), and the reset piece G is pushed in the direction of the arrow so that the leaf spring C is removed. The safety device that was activated by pushing it back to the position will be released and it will return to normal use. Reference numeral (6) in the drawing indicates an ignition knob.

[0010]

[Effect of device]

 According to the present invention, when the gas pressure in the cylinder rises abnormally as described above, the stop valve F operates to automatically shut off the gas flow to stop the fire and prevent the cylinder from exploding. As a safety device for a cassette stove, it has an extremely simple structure and operates reliably. Further, it is easy to release the operating safety device, and has an epoch-making operational effect as compared with the conventional safety device of this type.

[Brief description of drawings]

1 is a plan view of a cassette stove

[Fig. 2] Structural drawing of the main part

[Explanation of symbols]

 (1) ... Flame mouth (2) ... Support spring (3) ... O-ring (4) ... Governor (5) ... Gas cylinder (6) ... Ignition knob

Claims (1)

[Scope of utility model registration request] Claims: 1. From a receptacle into which a gas cylinder is inserted to a flame outlet (1)
A shutoff valve F provided with an O-ring (3) supported by a spring (2) is provided in a gas passage A-B in a governor (4) that sends gas in a predetermined direction, and the position where the O-ring (3) faces each other. Of the gas stove, wherein a step portion D is provided on the inner wall of the gas passage, a leaf spring C curved in an arc shape is provided at the valve bottom of the shutoff valve F, and a reset piece G is provided on the back surface of the leaf spring. Safety device.