JPH0541895B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a gas flow rate control device for a gas appliance that controls the amount of gas supplied to a gas burner.

BACKGROUND TECHNOLOGY As shown in FIG. 3, this type of conventional gas flow rate control device rotates a closure 2 fitted with a lock main body 1 having an inlet 1a and an outlet 1b with a knob 3.
The gas flow rate is controlled by connecting or closing the flow path 2a to the inlet 1a. And axis 3 of knob 3
When the spring 5a is pressed between the panel 5a and the closure 2, the engagement between the panel 5 and the closure 2 is removed.
A center shaft 4 is interposed therebetween, which is engaged with and pushed by a spring 4a.

According to the above configuration, when the knob 3 is pushed, the center shaft 4 is detached from the panel 5 and engaged with the closing member 2, and when the knob 3 is turned, the closing member 2 rotates and the flow path 2a is connected to the inlet 1a, and the gas flows to outlet 1b. Further, when the knob 3 is turned in the opposite direction to the above, the closing member 2 is closed, and the center shaft 4 is pushed by the spring 4a and engages with the panel 5.
is locked.

Problems to be Solved by the Invention The above-mentioned conventional gas appliance taps are operated by push-and-turn operation, but recently, the convenience of gas appliances has increased.
In pursuit of operability, device valves that use a valve type to control gas flow through push-button operation are being evaluated rather than the cock type.

The present invention incorporates a locking mechanism to enhance safety into a push-operated valve type flow rate control device, and also enables each of the locking and flow adjustment operations to be performed reliably.

Means for Solving the Problems The present invention provides a valve body having a valve for opening and closing a flow path, an opening/closing mechanism for opening and closing the valve of the valve body, and a push-pull type ignition and extinguishing button for operating the opening/closing mechanism. It is composed of three blocks, the main body of the operating section, which integrally has a lock lever that slides in and out of the ignition button position when the gas is extinguished, and these blocks are provided separately.

Function The present invention opens and closes the valve of the valve body by pushing the ignition and extinguishing button, and also locks and releases the ignition button by sliding the lock lever, and also locks and releases the ignition button by pressing the ignition and extinguishing button. This makes assembly and after-sales service easier.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.
6 is an inlet 6a, a main outlet 6b, and a pilot outlet 6c.
The valve body has a flow passage 6d connecting these parts, and includes the parts described below. 7 is a main shaft, and 8 is a flow path switching shaft, which are slidably provided on the valve body 6, and have a main valve 7a for opening and closing the flow path 6d at one end, a valve 8a for switching the flow path, and a valve 8a for switching the flow path at the other end. protrudes outside the valve body 6. 9 is a seal provided on the pilot valve 10 of the main shaft 7, and 11 and 11a are valves 7a and 8a.
a spring that biases the flow path 6d to close the flow path 6d;
Reference numeral 12 denotes a flow rate control needle provided in a branch channel 6e that branches from the flow channel 6d and communicates with the main outlet 6b.

Next, the opening/closing mechanism section that opens and closes the valve body 6 will be explained. Reference numerals 13 and 14 denote an ignition lever and a fire extinguishing lever that open and close the valves 7a and 8a by sliding the main shaft 7 and the flow path switching shaft 8 back and forth, and 15 denotes a guide attached to the bracket 16, which connects the ignition lever 13 and guide the slide of the fire extinguishing lever 14. Reference numeral 17 denotes a fire power adjustment lever supported by the bracket 16, which is linked to rotate the flow rate control needle 12. 18 is guide 1
A stopper 19 is provided at the stopper 1, which locks the ignition lever 13 in the pressed position and releases the locking by pressing and sliding the fire extinguishing lever 14.
This is a spring that returns the ignition lever 13 that has been removed from the ignition lever 8 to its original position.

Furthermore, the operating section of the above-mentioned opening/closing mechanism section will be explained. 20 is the main body of the operation unit, which includes an ignition button 21;
The fire extinguishing button 22 is supported by a shaft 23 having a stopper 24. Reference numeral 25 denotes a lock lever for locking the ignition button 21. The lock lever 25 is attached to the operation section main body 20 so as to be slidable at a position below the ignition button 21 by means of a slide shaft 26 having a stopper 27, and extends and retracts from the position of the ignition button 21. Reference numeral 29 denotes a ball installed in the concave portion 20a of the operation section main body 20 via a spring 28, which makes elastic contact with the mountain-shaped uneven portion 25a formed on the lock lever 25 and provides moderation to the locking and unlocking slides of the lock lever 25. . 25b is a protrusion provided on the lock lever 25 to reduce friction when the lock lever 25 is guided into the guide groove 20b of the operating section main body 20; 20c is located on the opposite side of the lock lever 25 with the ignition button 21 in between; This is a guide groove that guides the slide of the upper firepower adjustment lever 17.

In the embodiment described above, even if the ignition button 21 is pressed, the opposite lock lever 25 is hit before the ignition button 21 is pressed, so that the ignition operation cannot be performed. and,
From this, the lock lever 25 is slid to the left in FIG. 2 and removed from in front of the ignition button 21 to release the lock. From now on, the ignition button 21
When you press , the ignition lever 13 slides and pushes the main shaft 7 and flow path switching shaft 8, and each valve 7
Open a and 8a. Therefore, the gas is inlet 6
a, a valve 7a, a flow path 6d, and a flow path switching valve 8a in which the amount necessary for ignition is ensured, and flows from the main outlet 6b to the burner. On the other hand, a part of the gas flowing in from the inlet 6a passes through the pilot valve 10 and flows to the pilot burner from the pilot outlet 6c, and the flame ignites the burner. When this ignition is completed, the pressure is removed from the ignition button 21, and the ignition lever 13 is moved back slightly and locked to the stopper 18.
Further, the flow path switching shaft 8 retreats and the valve 8a
is closed, and on the other hand, gas flows only from the branch channel 6e to the main outlet 6b via the firepower adjustment needle 12 set by the firepower adjustment lever 17, and the firepower of the burner is set. To extinguish the fire under such usage conditions, press the fire extinguishing button 22 and slide the fire extinguishing lever 14, the stopper 18 will come off and the ignition lever 13 will be released.
However, the main valve 7a is closed by moving backward from the time of ignition. Furthermore, if the lock lever 25 is slid to the right in FIG. 2, it will face in front of the ignition button 21, and the ignition button 21 can be locked. When the lock lever 25 slides from side to side, the ball 29 and the uneven portion 25
A sense of moderation occurs between the steps a, and the feel of the operation and the half-hearted operation that stops midway are avoided.

Effects of the Invention According to the present invention according to the above embodiments, the following effects can be obtained.

(1) The ignition lever, the ignition button that operates the extinguishing lever, and the locking lever that locks the extinguishing button and the ignition button when not in use are built into the main body of the control unit, so before attaching the main body of the control unit to the appliance, remove the lock lever, ignition button, etc. The relationship between the two can be checked reliably and assembly is easy.

(2) The push-type valve body that controls gas flow is equipped with a lock lever as a locking device, making it an easy-to-operate valve system.
Safety can be ensured to prevent children from playing pranks.

(3) Since the device is composed of three blocks: a valve body, a mechanism section for opening and closing the valve body, and an operating section body for operating this mechanism section, assembly and after-sales service can be improved.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a gas flow rate control device according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same, and FIG.
The figure is a longitudinal sectional view of a conventional example. 6... Valve body, 7a, 8a... Valve, 1
3...Ignition lever, 14...Fire extinguishing lever, 20...
...Control unit body, 21...Ignition button, 25...Lock lever.

Claims (1)

[Claims] 1. A valve body having valves that open and close gas flow passages, an opening/closing mechanism having an ignition lever that opens the valves, and a fire extinguishing lever that closes the valves, and an opening/closing mechanism that operates the ignition levers and the fire extinguishing levers. an ignition button, a fire extinguishing button, and a locking device part that makes it possible to disable or enable the pressing operation of the ignition button by optionally sliding a lock lever into and out of the gas extinguishing button at the position of the ignition button; and 3. A gas flow control device consisting of blocks.