JPS6242279Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a safety device for gas heaters and other gas appliances.

Conventionally, there is a type of gas appliance that connects a gas appliance with an internal appliance stopper that is operated by a front-mounted operator to a gas supply pipe that has a main stopper outside the gas appliance with a rubber hose or other flexible pipe; Generally, the main valve is opened and closed separately, and with such equipment, it is necessary to close the main valve separately when the gas appliance is not in use, and if you forget to close it, gas may leak into the flexible pipe. Therefore, if the pipe deteriorates, gas leakage may easily occur from the pipe, which is dangerous.

The purpose of the present invention is to obtain a device free of such inconveniences, and it is possible to connect a gas heater or other gas appliance 3, which has an operator 1 and an appliance valve 2 etc. operated by the operator, to a device outside the gas appliance. In the case where a gas supply pipe 5 having a main stopcock 4 is connected with a rubber hose or other flexible pipe 6, the gas appliance 3 is provided with a drive source 8 for opening and closing the main stopcock 4, and the drive source 8 is operated as described above. It is configured such that it can be switched between active and non-active states by the child 1.

FIG. 1 shows one example, in which the gas appliance 3 is of a type that includes a gas burner 3b inside the gas appliance main body 3a on the outer periphery. The instrument stopper 2 and the main stopper 4 are operated by the operator 1.
Although it is also possible to use a type in which the parts are mechanically connected to each other by cables or the like and mechanically interlocked with each other, the illustrated one is configured as follows so that they are electrically interlocked.

That is, an operating solenoid or other drive source 7 that opens the appliance stopper 2 against the spring and a drive source 8 such as an operating solenoid or motor that opens the main stopper 4 against the spring are connected to the power source 9. When the switch 1 is pressed, the closing switch 10 is intervened, and when the switch 10 is closed, the driving sources 7 and 8 are actuated to open the stoppers 2 and 4, and then the pressing is released. Accordingly, when the switch 10 is opened, each stopper 2, 4 is brought into a closed position by each spring.

If the main stopper 4 is already installed, it is necessary to remove and replace it in order to convert it into the above-mentioned interlocking type, which is inevitably troublesome. The embodiment shown in the second figure eliminates such inconvenience, and the first main stopper 4a is used as an existing main stopper, and the interlocking type second main stopper 4b, which is prepared separately in advance, is attached to and detached from the first main stopcock 4a by screws or other means. connect,
The second main valve 4b is connected to the gas appliance 3 side using a rubber hose or the like. If this interlocking type is not needed, it can be removed and replaced with a separately prepared connecting member 11, as shown in the third figure.

To explain its operation, in order to use the gas appliance 3, operate the operator 1 to open the internal appliance stopper 2.
In conjunction with this, the main valve 4 is opened, and gas is introduced into the appliance 3 for use.Next, when the appliance 3 is not in use, the operator 1 closes the appliance valve 2.
In conjunction with this, the main valve 4 is also closed. Thus, the gas is blocked on the upstream side of the rubber hose or other flexible pipe 6, and there is no danger.

In the above embodiment, the main valve 4 is opened and closed by the operator 1 that opens and closes the instrument valve 2.
The present invention is not limited to this, and for example, the main valve 4 may be opened and closed using the operator 1 for operating the combustion fan in an FF heater.

In this way, the gas appliance 3 is provided with a drive source 8 that opens and closes the main valve 4 provided outside the gas appliance, and the drive source 8 is operated by the operator 1 that opens and closes the appliance valve 2 and the like provided on the gas appliance 3. Since it is configured to switch between operating and non-operating states, the main valve 4 provided outside the gas appliance 3 can be opened and closed together with the appliance valve 2, thereby connecting the gas appliance 3 and the gas supply pipe 5 outside the appliance. This has the effect of safely eliminating the risk of gas leakage from the flexible pipe section due to deterioration of the flexible pipe such as the rubber hose to be connected.

[Brief explanation of the drawing]

FIG. 1 is a plan view of one example of the present device, and FIGS. 2 and 3 are partially cut-away side views of modified examples thereof. 1... Operator, 2... Appliance stopper, 3... Gas appliance, 4... Main stopcock, 5... Gas supply pipe, 6... Flexible pipe.

Claims (1)

[Scope of utility model registration request] Operator 1 and appliance plug 2 that is opened and closed by it
When connecting a gas heater or other gas appliance 3 with a rubber hose or other flexible pipe 6 to a gas supply pipe 5 having a main stopcock 4 outside the appliance, connect the main stopcock 4 to the gas appliance 3. Drive source 8 for opening/closing operation
A safety device for a gas appliance, which is provided with a drive source 8 and is configured to switch the drive source 8 between activated and deactivated states using the operator 1.