JPH0743135B2 - Gas flow controller - Google Patents

Description

BACKGROUND OF THE INVENTION 1. 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.

2. Description of the Related Art As shown in FIG.
A closure 2 fitted to a cock body 1 having an inlet 1a and an outlet 1b
Is rotated by the knob 3 to connect or close the flow passage 2a to the inlet 1a to control the gas flow rate. Then, when it is pushed between the shaft 3a of the knob 3 and the closing member 2 against the spring 5a, it is pushed out of engagement with the panel 5 and engages with the closing member 2 and is pushed by the spring 4a. The intermediate shaft 4 is interposed.

According to the above structure, when the knob 3 is pushed, the center shaft 4 is disengaged from the panel 5 and engages with the closure 2, and when the knob 3 is turned, the closure 2 rotates and the flow passage 2a is connected to the inlet 1a. Flows to the exit 1b. On the contrary, when the knob 3 is turned, the closing member 2 is closed, and the center shaft 4 is pushed by the spring 4a to engage with the panel 5, so that the closing member 2 with respect to the cock body 1 is locked.

Problems to be Solved by the Invention The conventional cock-type gas appliance plug described above is used in a push-and-push operation, but recently, due to the pursuit of convenience and operability of gas appliances, the valve-type push is used rather than the cock-type. Instrument plugs that control gas flow by operation have been evaluated.

The present invention is to incorporate a lock mechanism that enhances safety into a valve type flow rate control device that performs a push operation, and to ensure each operation of locking and flow rate control.

Means for Solving the Problems The present invention has a valve body that opens and closes by a push system, and of the ignition and fire extinguishing buttons that open and close the valve body, a slide type lock lever is provided for the ignition button, and the lock is provided. The lever slide is provided with an uneven portion and a ball elastically contacting the uneven portion so as to give a feeling of moderation.

Action The present invention opens and closes the valve body by pushing the ignition and fire extinguishing buttons, and locks and releases the ignition button by sliding the lock lever. Further, the operation is interrupted due to a moderation feeling generated between the uneven portion and the ball. It should be easy to understand so as not to end.

Embodiment One embodiment of the present invention will be described below with reference to the drawings. 6 is the entrance
A valve body having 6a, a main outlet 6b, a pilot outlet 6c, and a flow passage 6d connecting these, and is provided with the components described below. Reference numeral 7 is a main shaft, 8 is a flow path switching shaft, which are slidably mounted on the valve body 6 and have a main passage 7a for opening and closing the flow passage 6d at one end, and a flow passage switching valve.
8a is provided, and the other end projects outside the valve body 6. 9 is a seal provided on the pilot valve 10 of the main shaft 7, 11, 11a
Is a spring for urging the valves 7a, 8a to close the flow passage 6d, and 12 is a flow control needle provided in the branch flow passage 6e branched from the flow passage 6d and communicating with the main outlet 6b.

Next, the opening / closing mechanism for opening / closing the valve body 6 will be described. 13 and 14 are ignition levers and fire extinguishing levers that open and close each valve 7a, 8a by pushing the main shaft 7 and the flow path switching shaft 8 back and forth by sliding, and 15 is a guide attached to the bracket 16, and the ignition lever 13 And guide the slide of the fire extinguishing lever 14. Reference numeral 17 denotes a thermal power adjustment lever supported by the bracket 16 and linked so as to rotate the flow rate control needle 12. 18 is provided on the guide 15, and the ignition lever 13 is locked at the pushed position, and further, the stopper for releasing the locking by the pushing slide of the fire extinguishing lever 14, 19 is the original of the ignition lever 13 removed from the stopper 18. It is a spring that returns to the position.

Further, the operation section of the above-mentioned opening / closing mechanism section will be described.
Reference numeral 20 denotes a main body of the operation portion, which pivotally supports an ignition button 21 and a fire extinguishing button 22 by a shaft 23 having a stopper 24. 25 is the ignition button
A lock lever that locks 21 is slidably attached to the operation portion main body 20 below the ignition button 21 by a slide shaft 26 having a stopper 27, and then appears at the position of the ignition button 21. Reference numeral 29 is a ball that is installed in the concave portion 20a of the operation portion main body 20 via a spring 28, and is a lock lever.
It is elastically contacted with the mountain-shaped uneven portion 25a formed in 25 to give a sliding motion to the locking and unlocking slide 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 to the guide groove 20b of the operation section body 20, and 20c is opposite to the lock lever 25 with the ignition button 21 in between. It is a guide groove for guiding the slide of the upper heat power adjusting lever 17 positioned to the side.

In the above embodiment, even if the ignition button 21 is pressed, the lock lever 25 facing the front is hit and the ignition operation cannot be performed. Then, the lock lever 25 is slid to the left in FIG. 2 to remove it from the front of the ignition button 21 to release the lock. Ignition button 21
When is pressed, the ignition lever 13 slides to push the main shaft 7 and the passage switching shaft 8 to open the valves 7a and 8a. Therefore, the gas is introduced into the inlet 6a, the valve 7a, the flow passage 6d,
Then, it flows to the burner from the main outlet 6b through the flow path switching valve 8a which secures the amount required for ignition. On the other hand, part of the gas flowing from the inlet 6a passes through the pilot valve 10 and the pilot outlet.
It flows from 6c to the pilot burner, and the flame ignites the burner.

When this ignition ends, the pressure is released from the ignition button 21, and the ignition lever 13 is slightly retracted and locked by the stopper 18, and the flow path switching shaft 8 is retracted to close the valve 8a, while the ignition control lever 17 is used. Set thermal power adjustment needle
Gas flows to the main outlet 6b only from the branch flow path 6e via 12 and the burner heat power is set. When extinguishing the fire from such a usage state, if the fire extinguishing button 22 is pressed and the fire extinguishing lever 14 is slid, the stopper 18 is disengaged and the ignition lever 13 retracts from the time of ignition to close the main valve 7a. Further, if the lock lever 25 is slid to the right in FIG. 2, it will face the front of the ignition button 21, and the ignition button 21 can be locked. And this lock lever 25
When sliding to the left or right, a feeling of moderation occurs between the ball 29 and the concave-convex portion 25a, and the feeling of operation and a halfway operation that stops in the middle do not occur.

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

(1) In the valve body that controls the gas flow by push type,
Since the lock lever is provided as the lock device, the valve system is easy to operate, but it is possible to ensure the safety that it is not easily operated by an infant or the like.

(2) Since the lock lever includes the concavo-convex portion and the ball which is elastically contacted with the concavo-convex portion, the lock lever can be locked and unlocked securely without a halfway operation.

[Brief description of drawings]

FIG. 1 is a vertical cross-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 main part, and FIG. 3 (a) (b).
Is a top view and a front view of the lock lever, and FIG. 4 is a longitudinal sectional view of a conventional example. 6 …… Valve body, 7a, 8a …… Valve, 20 …… Operation part body, 21 …… Ignition button, 22 …… Fire extinguishing button, 25 …… Lock lever, 25a …… Concave part, 29 …… Ball.

Claims (1)

[Claims] 1. A valve body having a valve for opening and closing a gas flow passage, an opening / closing mechanism portion for opening / closing the valve, a push-type ignition and fire extinguishing button for operating the opening / closing mechanism portion, and when the gas is closed. A gas flow rate control device comprising a lock device capable of arbitrarily locking or unlocking the ignition button.