JPH0220616Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a lever-operated gas control valve.
This invention relates to a device in which a series of operations from opening/closing and igniting the pilot main gas, adjusting and controlling the amount of gas output, to fully closing the valve is performed by a single lever.

(Prior art) A gas control valve that performs a series of operations from gas ignition to opening/closing and flow rate adjustment by pressing a push button first presses the ignition push button to ignite the main burner, and then By operating a gas adjustment push button or lever, the amount of gas in the main burner is adjusted to adjust the thermal power. However, in this conventional method, two operation buttons, etc. must be operated separately, making it difficult to synchronize the timing, resulting in problems such as misignition and erroneous operation.

(Technical Issue) Therefore, the present invention has developed a technology that allows one-touch operations such as ignition, gas opening/closing, and adjustment of the main burner thermal power by simply operating a single operating lever. This will be a major issue.

(Technical Means) In order to solve the above technical issues, the present invention provides a main gas/pilot gas opening/closing and thermoelectric safety valve in a valve body having a gas inlet, a main gas outlet, and a pilot gas outlet. A gas opening/closing push rod that is pushed in against the bias of a spring to open, and a gas control rod that is rotatably and axially slidably supported to adjust the amount of gas flowing out by moving the nozzle valve in and out. an operating lever pivotally mounted to the exterior part of the valve body, and a pivoting lever so as to push in the push rod in conjunction with the operating lever while the lever is being operated. and a stationary cam that rotates and moves the gas control rod in the axial direction in conjunction with a gear movement of the operation lever.

(Function) When the operating lever 1 is operated in the direction of arrow A, the pin 2 pushes the push cam 3, thereby pushing the push rod 11 for opening and closing the gas.

When the push rod 11 is pushed in, the main valve 12 and pilot valve 13 open first, and at the same time, the safety valve 1 is opened at the end of the push rod.
Push 4 open. When the operating lever 1 is further operated to the final position, the ignition switch 15 is turned on and the igniter is activated.

On the other hand, when the operating lever 1 is inserted, the gears 16 and 17 are interlocked to rotate the gas control shaft 21 together with the rotating body 18 in the direction of arrow B. When the rotating body 18 rotates, a guide pin 19 provided inwardly projecting thereon engages the fixed cam 20, and the slanted cam surface 20a moves the shaft rod 21 so as to pull it out in the direction of arrow C. When the shaft rod 21 moves, the nozzle valve 22 retreats, so the valve port 23 opens and gas flows out from the main gas outlet 24. The amount of gas outflow is adjusted by the amount of movement of the shaft rod 21.

(Example) The operating lever 1 has its base end pivotally connected to the valve body 10 by a shaft 25, and is operated to swing around this shaft as a fulcrum.

The pushing cam 3 is a pin 2 provided on the operating lever 1.
The valve body 10 is swingably attached to the valve body 10 about a support shaft 26 so that the cam surface is pressed down by the support shaft 26.

A spring 27 is applied to the push rod 11 so that the main valve 1 is normally
2 is closed, and the shaft head 11a is closed by the valve body 10.
It penetrates through and comes into contact with the inner surface of the push cam 3 under spring pressure.

The main valve 12 is integrally attached to the push rod 11, but the pilot valve 13 is a separate object consisting of a ring packing fixed to the main body side, so that it slides against the push rod 11 so that gas can flow when it reaches the shaft detail 11b. do.

The thermoelectric safety valve 14 opens when pushed by the push rod 11, and when a thermoelectromotive force is generated by igniting the gas, the valve remains open even after the pushing force from the push rod 11 is released. It's getting old.

In order to keep the gears 16 and 17 always in mesh, one gear 17 is formed wide so that it will not come out of mesh even if the shaft rod 21 moves in the axial direction.

A spring 28 is applied to the shaft rod 21 to bias the nozzle valve 22 in the closing direction, and the pin 19 is brought into elastic contact with the fixed cam 20.

The protruding length of the pin 19 can be adjusted by screwing the pin 19 into place.

(Effects) As mentioned above, this invention allows a series of operations from opening and closing the gas to opening and closing the safety valve and igniting the gas to be performed in one touch by simply operating one operating lever from the stop position to the start position and then to the fully open position. In addition, after igniting the gas, by reciprocating the operating lever within the control range, the nozzle valve can be moved near and far to adjust the gas outflow amount. There is no need to separately operate the operating buttons, levers, handles, etc., and the operation can be performed safely and reliably without worrying about misignition, etc., and the structure is simple and can be implemented at low cost.

[Brief explanation of the drawing]

Figure 1 is a side view of a gas control valve equipped with the present invention;
Figure 2 is a side view of the opposite side, Figure 3 is a rear view of the same,
FIG. 4 is a side view of the fixed cam, and FIG. 5 is a sectional view of the internal structure. 1... Operating lever, 2... Pin, 3... Push cam, 10... Valve body, 11... Push rod, 12... Main valve, 13... Pilot valve, 14... Safety valve, 1
5...Ignition switch, 16,17...Gear, 1
8... Rotating body, 19... Guide pin, 20... Fixed cam, 21... Shaft rod, 22... Nozzle valve, 23
... Valve port, 24 ... Main gas outlet, 25 ... Shaft, 2
6...Spindle.

Claims (1)

[Scope of utility model registration request] A gas opening/closing pushbutton is inserted into the valve body, which has a gas inlet, a main gas outlet, and a pilot gas outlet, against the bias of a spring to open/close the main gas/pilot gas and to push open the thermoelectric safety valve. A rod and a gas control shaft rod supported rotatably and slidably in the axial direction so as to adjust the outflow amount of gas by protruding and retracting the nozzle valve are provided, and the rod is swingably mounted on the exterior part of the valve body. an operating lever pivotally connected to the operating lever, a pushing cam pivotally supported to push the pushing rod during operation of the operating lever in conjunction with the operating lever, and a gear interlocking with movement of the operating lever to push the gas A gas control valve operating device comprising a fixed cam that moves a control shaft in the axial direction as it rotates.