JPS602463Y2 - Gas appliance operating device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a gas appliance operating device.

In general, there are various types of single-shaft flashing pilot burners and main burners, such as those that operate by pushing and turning, and those that operate by turning, but the present invention is particularly designed to improve the safety of use. This has been improved by taking into consideration the following.

In other words, in the push-and-turn operation, first push the operating shaft and rotate it by a certain angle in the lowered state, the pilot burner will ignite, the rotation will be blocked, and the operating shaft will rise at that position, this position will become the pilot ignition position, and then When rotated by a certain angle, the main burner ignites and burns, and when extinguishing the fire, it follows the reverse path of ignition.

This push-and-turn route is guided by a guide mechanism, so other routes cannot be taken.

The push-and-turn operation has the advantage that the pilot ignition stroke and the main ignition stroke are clearly differentiated, and since the push operation is involved, each operation is clearly stopped at the end, so there is no risk of malfunction. When returning, for example, when trying to extinguish a fire in a hurry, such as during a natural disaster, you may forget to press the operating shaft from the pilot position and return it to the extinguishing position.
Alternatively, there is a possibility that it may not be possible to quickly return to the extinguishing position due to the pushing motion involved.

The present invention improves safety by making it possible to return the fire extinguisher to the extinguishing position simply by turning the fire when extinguishing the fire.

To specifically explain this with respect to the illustrated embodiment, 1
Mainly consists of the operating mechanism, including the electromagnetic safety valve 2, pilot gas valve 3
, a main gas valve 4 is provided in each gas passage, the electromagnetic safety valve 2 is opened by pushing the operating shaft 5, and the pilot gas valve 3 and the main gas valve 4 are provided with a cam 6.7 fixed to the operating shaft 5.
Opens and closes by rotating.

8 is the restoring spring of the operating shaft 5, 9 is the knob, and 10 is the operating shaft 5.
A guide pin implanted in the guide mechanism 11 engages with the operating shaft 5.
Guide the operation.

The guide mechanism 11 consists of a pilot ignition stroke guide part A, a main ignition stroke guide part B, a pilot ignition stroke guide part A, and a restraint part C provided above, which are formed on the main body 1, and the bottom surface of the restraint part C is operated. A slope 12 is formed in the direction in which the guide pin 10 descends during extinguishing rotation of the shaft 5, and the operating shaft 5 can be rotated to return the operating shaft 5 from the pilot ignition position to the original extinguishing position. This is so that you can do it.

The upper end of the slope 12 is set so that the guide pin 10 can ride on the slope 12 when the operating shaft 5 is in the raised position, and when the main ignition stroke is reversely rotated and the pilot position is reached, the guide pin 10
comes into contact with the upper end of the slope 12, a rotation preventing force acts, and a click occurs, and when the guide pin rotates even more strongly, the guide pin rides on the slope 12.

The lower end of the slope 12 is set in such a range that even if the guide pin 10 descends to that position, the lower end of the operating shaft 5 will not push the electromagnetic safety valve 2, and even in the lowered state when the operating shaft 5 returns and rotates, the electromagnetic safety valve will not press. 2 can be closed at any time.

The present invention has the above-mentioned configuration, and its operation will be explained next. In the initial extinguishing position, the operating shaft 5 is at the 0° position and the guide pin 10 is located at the upper part of the starting end of the pilot ignition stroke guide part A, as shown in FIG. Located in

Rotation from this position is prevented by one end face of the restraining portion C.

When operating the ignition, when the operating shaft 5 is pressed, the electromagnetic safety valve 2 is opened at the lower end of the operating shaft 5.

When the guide pin 10 is in the open position of the electromagnetic safety valve 2, it is removed from the lower surface of the restraining part C, so the operating shaft 5 can be rotated, and when rotated by a certain angle (900 degrees in this example), the cam 6 opens the pilot gas valve. 3 is opened and the pilot burner is ignited by an automatic ignition device related to the rotation of the operating shaft 5.

When the operating shaft 5 rotates 90 degrees, the guide pin 10 comes into contact with the end surface of the pilot ignition stroke guide part A, and rotation is prevented.
When the pressing force is released, the operating shaft 5 returns to the raised position due to the restoring force of the spring 8.

This 90° rotation position becomes the pilot ignition position, and the stroke up to this position becomes the pilot ignition stroke.

Next, when the operating shaft 5 is rotated by a certain angle (90 degrees in this embodiment), the cam 7 opens the main gas valve 4 and the main burner starts ignition combustion.

This rotation range becomes the main ignition stroke, and the main ignition stroke guide portion B regulates the rotation range.

In this way, when igniting, a gentle push and turn operation is performed,
When extinguishing a fire by rotating the operating shaft 5 in the opposite direction, rotate the guide pin 1 at the 90° position.
0 is designed so that a portion (approximately the radius) of the guide pin 10 comes into contact with and rests on the slope 12 at the lower end of the other side of the restraining portion C, so that a rotation preventing force acts and a clear click occurs.

When the operating shaft 5 is further strongly rotated, the guide pin 10 rides on the slope 12 and gradually descends as the guide pin 10 rotates, and when it comes out of the restraining portion C, it rises and returns to the original extinguishing position.

In this way, when a fire is extinguished, it can be returned to its original position by rotating it.

In addition, the operating shaft 5 descends during this return, but even in the lowered position where the guide pin 10 is located at the lowest end of the slope 12, the lower end of the operating shaft 5 is set within a range that does not push the electromagnetic safety valve 2, so the electromagnetic safety valve 2 is kept closed even during safe operation.

As described above, the present invention provides a push-turn operation mechanism in which a slope is formed on the lower surface of the constraint of the guide mechanism, and when the operating shaft is rotated to extinguish the fire, the guide pin descends along the slope, allowing the operation to be performed by turning. Since the shaft can be returned to its original position, the gas passage can be quickly closed in an emergency, improving the safety of the device.

Moreover, when the operating shaft rotates for extinguishing during the main ignition stroke, a portion of the guide pin comes into contact with the upper end of the slope, so there is a clear click, the main extinguishing position can be clearly indicated, and the operation can be performed reliably.

In addition, the lower end of the slope, that is, the position at which the operating shaft descends when turning the operating shaft to extinguish fire, is set in a range that does not push the electromagnetic safety valve, so the electromagnetic safety valve is always closed, and the gas passage is completely closed in the event of an emergency. It can be closed and kept safe.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the present invention, FIG. 2 is a sectional view taken along the line E-II in FIG. 1, and FIG. 3 is a developed explanatory view showing the relationship between the guide mechanism and the guide pin. 1...Operating mechanism main body, 2...Solenoid safety valve, 3...Pilot gas valve, 4...
Main gas valve, 5... Operating shaft, 10...
・Guide pin, 11... Guide mechanism, 12...
...Slope, A...Pilot ignition stroke guide section,
B... Main ignition stroke guide section, C...
Restraint part.

Claims (1)

[Scope of utility model registration request] A pilot ignition stroke guide section, which is equipped with an electromagnetic safety valve, a pilot gas valve, and a main gas valve, guides the pilot ignition stroke and the main ignition stroke by engaging a guide pin implanted in the operating shaft to guide each stroke. A guide mechanism consisting of a guide part and a restraint part presses the operating shaft and rotates it through a certain angle to ignite the pilot burner, and when the pressure is released at that position, the operating shaft rises due to the restoring spring.
Furthermore, in a single-shaft operating mechanism that rotates a certain degree to ignite and burn the main burner, a slope is formed on the lower surface of the restraining portion in a direction in which a guide pin descends when the operating shaft is rotated for extinguishing;
At the raised position of the upper end of the slope, a part of the guide pin touches the slope so that the operating shaft can be returned by riding around, and the lower end of the slope is set within a range where the operating shaft does not push the solenoid valve, and the pilot ignition is set. An operating shaft gas appliance operating device characterized in that no restriction is applied to the shutoff action of an electromagnetic safety valve except when the operating shaft is pressed during a stroke.