JP2019199917A - Gas cock and connection method thereof - Google Patents

Abstract

To provide a gas cock capable of performing a connection work of a gas consumer and gas pipe and an air purge work easily, and a connection method thereof.SOLUTION: A gas cock 1 comprises a cock body 2 provided with a gas passage, and a valve body that can move between an open position of opening the gas passage and a closed position of closing the gas passage. The cock body 2 has a pipe connecting part 2A to which a flexible pipe P is connected, and a socket joint connecting part 2B connected to a socket joint 50 attached to a gas stove 20. The gas cock 1 is connected to the gas stove 20 by fitting the socket joint connecting part 2B into the socket joint 50 in a state where the flexible pipe P is connected to the pipe connecting part 2A.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a gas stopper and a connection method thereof, and more particularly to a gas stopper connected to a gas consuming appliance and a connection method thereof.

  Conventionally, when connecting a gas consuming appliance (for example, a gas stove) and a flexible pipe (gas hose) as a gas pipe, a technique is known in which a gas stopper is interposed therebetween (see Patent Document 1).

In general, the connection through such a gas plug is as shown in FIG.
-After connecting the flexible pipe p to the upstream connection part a of the gas plug gv, tighten the universal nut b1 of the downstream connection part b into the instrument side connection part c of the gas consuming instrument gf, or
-After connecting the downstream side connection part b of the gas plug gv to the instrument side connection part c of the gas consuming instrument gf, the flexible pipe joint a1 and the flexible pipe p are connected.
Is done.

  According to such a conventional connection method, it is possible to connect the gas consuming appliance and the gas pipe relatively easily.

JP 2009-299711 A

  However, in such a conventional connection method, tightening of the universal nut b1 with a tool (for example, a wrench) or connection of the flexible pipe p to the flexible pipe joint a1 is performed in a relatively narrow space around the appliance side connection portion c. Therefore, there is a problem that it is difficult to perform such work.

  By the way, when the gas consuming appliance gf and the flexible pipe p are connected and air is mixed in these, the gas consuming appliance gf is used to exhaust the air (air purge) while burning the gas. It is common to do it.

  However, depending on the construction site, for example, there are many cases where the use of fire is restricted (for example, when painting work is performed at that timing), and in such a case, air purge cannot be performed by the above-described method. , Problems arise.

  Such a problem is solved by connecting a jig (for example, a so-called gas adsorption container, hereinafter referred to as “air purge jig”) for performing an air purge to the gas plug gv to which the flexible pipe p is connected. Is possible.

  However, in the conventional gas plug gv, since the downstream connection portion b is the universal nut b1, even if the connection portion connectable to the downstream connection portion b is provided in the air purging jig, the universal nut b1 is used when the air purge is performed. It must be screwed in, and the work may be complicated.

  The present invention has been made in order to improve such a problem, and an object of the present invention is to provide a gas stopper capable of easily performing a connection operation and an air purge operation between a gas consuming appliance and a gas pipe, and a connection method thereof. Is to provide.

  According to the gas stopper according to the present invention, the above-described problem is provided between a stopper main body provided with a gas passage therein, and an open position provided in the stopper main body for opening the gas passage and a closed position closing the gas passage. A gas stopper provided with a movable valve body, wherein the stopper body is connected to an upstream side connection part to which a flexible pipe is connected and a downstream side connection part connected to an instrument side connection part attached to the gas consuming instrument. And the downstream connection part is locked by being fitted into the insertion port of the instrument side connection part.

  In addition, according to the method for connecting a gas plug according to the present invention, the plug body according to the present invention is provided with a plug body provided with a gas passage therein, an open position provided in the plug body, and the gas passage opened. A gas plug connection method comprising a valve body movable between positions, comprising: a flexible pipe connection step for connecting a flexible pipe to an upstream connection portion of the plug body; and the flexible pipe connection step. A gas consuming appliance connecting step of connecting a downstream connecting portion of the plug main body to an appliance side connecting portion attached to the gas consuming appliance, the gas consuming appliance connecting step including the downstream connecting portion This is also solved by being inserted into the insertion port of the appliance side connection part.

In the above configuration, when connecting a flexible pipe as a gas pipe to a gas consuming appliance (for example, a gas stove),
・ First, connect the flexible pipe to the downstream connection part of the plug body.
-Second, lock the upstream connection part of the plug body by inserting it into the insertion port of the instrument side connection part,
It is comprised so that it can carry out in the procedure of.

  That is, in the above configuration, since the connection work between the flexible pipe and the gas consuming instrument is completed simply by inserting the gas stopper to which the flexible pipe is connected into the instrument side connection part of the gas consuming instrument, the work is extremely simple. .

  In addition, according to the above configuration, since the gas stopper can be easily connected to the air purge jig by providing the air purge jig with a connection part similar to the instrument side connection part, the gas consumption tool and the flexible Even if the air purge is performed before connecting the pipe, the operation can be easily performed without any complications.

  Thus, in the above configuration, in addition to the operation of connecting the gas consuming device and the gas pipe, the air purge operation can be easily performed.

  In the invention relating to the gas plug, the valve element moves to an open position when the downstream side connection portion is locked to the gas device side connection portion, while the downstream side with respect to the gas device side connection portion. It is preferable that it is configured to move to the closed position when the side connection portion is unlocked.

  In the invention relating to the gas plug, it is preferable that a connection direction of the downstream connection portion with respect to the gas equipment side connection portion is orthogonal to a connection direction of the flexible pipe with respect to the upstream connection portion. .

  As described above, according to the gas stopper and the connection method thereof according to the present invention, not only the connection operation between the gas consumer and the gas pipe but also the air purge operation can be easily performed while having a simple configuration. .

It is explanatory drawing for demonstrating the gas consumption instrument concerning this embodiment. It is explanatory drawing which shows an example of the gas stopper concerning this embodiment. It is sectional drawing of the gas stopper of FIG. It is a flowchart which shows the connection method of the gas stopper concerning this embodiment. It is explanatory drawing for demonstrating the conventional gas stopper.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 is an explanatory view for explaining a gas consuming appliance according to the present embodiment, FIG. 2 is an explanatory view showing an example of a gas stopper according to the present embodiment, FIG. 3 is a sectional view of the gas stopper of FIG. These are the flowcharts which show the connection method of the gas stopper concerning this embodiment.

  FIG. 1 is a view showing a state in which a flexible pipe P is connected to a gas stove 20 through a gas plug 1 according to the present embodiment. In addition, the said gas stove 20, the flexible pipe P, and the gas stopper 1 correspond to the "gas consumption instrument", the "flexible pipe", and the "gas stopper" as described in a claim.

Before describing the configuration of the gas plug 1 according to the present embodiment, the gas stove 20 and the flexible pipe P will be described with reference to FIG.
As shown in FIG. 1, the gas stove 20 according to the present embodiment is a so-called built-in type that is inserted from above into a stove insertion port (not shown) formed in the counter C of the system kitchen SK. Further, the system kitchen SK is configured such that a storage space S capable of storing objects is formed below the attached gas stove 20.

  A gas inlet 21 that is exposed in the storage space S in a state of being mounted on the system kitchen SK is formed below the gas stove 20. The gas introduction port 21 is formed with a male screw that can be screwed with a gas consuming appliance connecting portion 50B (female screw) of a socket joint 50 described later (see FIG. 2). The socket joint 50 corresponds to the “instrument side connection portion” described in the claims.

  The flexible pipe P is a piping material made of a metal member (for example, stainless steel) that can be deformed in the longitudinal direction by bending its shape by hand, and one end side thereof passes through the storage space S or the inside of the wall W. Then, it is connected to a gas meter (not shown).

Next, the gas stopper 1 will be described with reference to FIGS. 2 and 3.
As shown in FIGS. 2 and 3, the gas plug 1 includes a plug body 2 formed in a substantially L shape and a valve body 10 provided inside the plug body 2.

  The plug body 2 includes a pipe connection part 2A connected to the flexible pipe P, a socket joint connection part 2B connected to a gas plug connection part 50A of the socket joint 50 described later, a pipe connection part 2A and a socket joint connection part 2B. And a gas passage 3 communicating with each other. The pipe connecting portion 2A, the socket joint connecting portion 2B, and the gas passage 3 are respectively an “upstream side connecting portion”, a “downstream side connecting portion”, and a “gas passage” described in the claims. It corresponds to.

  2 A of pipe connection parts are equipped with insertion port 2Aa which can insert the pipe end of the flexible pipe P, and coupling | joint 2 (bowl coupling) for pipes screwed so that the outer peripheral part of insertion port 2Aa may be covered.

  The flexible pipe P is configured to be connected to the plug body 2 by tightening the pipe joint 2Ab with a jig such as a wrench while being inserted into the insertion port 2Aa of the pipe connection portion 2A. On the other hand, the removal of the flexible pipe P from the pipe connecting portion 2A can be performed by following the reverse procedure. In the present embodiment, the gas plug 1 of the type in which the flexible pipe P is inserted into the insertion port 2Aa and then the pipe joint 2Ab is tightened is shown. It is also possible to use a gas stopper that can be connected only by inserting P.

  The socket joint connecting portion 2B has a cylindrical shape that can be inserted into and inserted into the socket joint 50, and a concave groove 2Ba that can engage a ball 54 of the socket joint 50 described later is formed on the outer periphery thereof.

Here, the socket joint connected to the socket joint connecting portion 2B will be described with reference to FIG.
As shown in FIG. 3, the socket joint 50 includes a gas plug connection section 50 </ b> A that can be connected to a socket joint connection section 2 </ b> B of the gas plug 1 described later, and a gas consuming appliance connection section that can be connected to the gas inlet 21 of the gas stove 20. 50B.

  Since the gas plug connection portion 50A is the same as a socket that can be connected to a known gas outlet, a detailed description thereof will be omitted. Etc.

  The inner moving part 52 is provided inside the main body part 51 so as to be movable along the axial direction, and in a state where the gas plug connecting part 50A is connected to the gas plug 1, the gas consumption is resisted against the urging force of the spring 56. It is comprised so that it may move toward the instrument connection part 50B side.

  The outer moving portion 53 is provided outside the main body portion 51 so as to be movable along the axial direction, and is directed toward the gas plug 1 by the biasing force of the spring 57 in a state where the gas plug 1 is connected to the gas plug connecting portion 50A. Configured to be moved.

  The ball 54 is disposed so as to be able to pass through a hole formed in the outer wall of the main body 51. When the gas plug 1 is connected to the gas plug connecting portion 50A, the ball 54 moves outward as the inner moving portion 52 moves toward the gas stove 20 and the outer moving portion 53 moves toward the gas plug 1 side. It is configured to fit in the concave groove 2Ba of the gas stopper 1 while being covered with the portion 53.

  In a state where the ball 54 and the concave groove 2Ba are fitted, the ball 54 is held between the concave groove 2Ba and the outer moving portion 53, whereby the connection state between the gas plug 1 and the socket joint 50 is maintained. It is like that. Note that the gas stopper 1 can be removed from the socket joint 50 by moving the outer moving portion 53 toward the gas stove 20 to release the fitting state between the ball 54 and the groove 2Ba.

  The pusher 55 is a rod-like member disposed inside the main body 51, and in a state where the gas plug 1 is connected to the gas plug connection portion 50A, the valve body 10 described later is pushed and moved inward of the plug main body 2. This is for opening the valve (gas supply state).

The gas consuming instrument connecting portion 50B is formed with an internal thread that can be screwed into the gas inlet 21 at the inner periphery thereof.
The socket joint 50 is attached to the gas stove 20 in a state where the male screw of the gas inlet 21 and the female screw of the gas consuming appliance connection part 50B are screwed together, and the socket joint 50 is tightened using a jig such as a wrench. It is possible to do it. In this embodiment, the gas inlet 21 side is a male screw and the socket joint 50 side is a female screw, but the gas inlet 21 side is a female screw and the socket joint 50 side is a male screw. Is also possible.

Next, the valve body 10 of the gas stopper 1 will be described with reference to FIGS. 2 and 3.
As shown in FIG. 2 and FIG. 3, the valve body 10 is the same as a valve body used for a known gas outlet, and therefore a detailed description is omitted. And a second valve body 12.

  The first valve body 11 is provided so as to be movable along the axial direction inside the gas passage 3 on the socket joint connecting portion 2B side. The first valve body 11 is urged by a spring 15 in a state where the gas stopper 1 is not connected to the socket joint 50, and is arranged at a closed position where the first valve seat 13 is closed. The first valve body 11 is pushed by the pusher 55 in a state where the gas stopper 1 is connected to the socket joint 50, and the gas passage 3 (first valve seat 13) is resisted against the biasing force of the spring 15. It is comprised so that it may move to the open position which opens.

  The second valve body 12 is fitted into one end of the first valve body 11, and is movable along the axial direction in the gas passage 3 on the socket joint connecting portion 2B side, like the first valve body 11. Is provided.

  The second valve body 12 is urged by a spring 16 provided between the gas plug 1 and the plug body 2 in a state where the gas plug 1 is not connected to the socket joint 50, and the gas passage 3 (second valve seat 14) is urged. It is arranged in the closed position where it closes. The second valve body 12 is configured to be pushed by the pusher 55 and moved to the open position for opening the second valve seat 14 in a state where the gas stopper 1 is connected to the socket joint 50. Yes.

Next, a procedure for attaching the gas plug 1 thus formed to the gas stove 20 (method for connecting the gas plug 1 according to the present embodiment) will be described with reference to FIGS.
In the following,
(A) By opening an on-off valve such as a meter cock, gas can be supplied to the flexible pipe P, and
(B) The socket joint 50 is connected to the gas stove 20,
The description will be made on the assumption that it is in a state.

  As shown in FIG. 4, the method for connecting the gas plug 1 according to the present embodiment includes a flexible pipe connection process A, a gas supply process B, an air purge process C, and a gas stove connection process D. In addition, the said flexible pipe | tube connection process A and the gas stove connection process D correspond to the "flexible pipe | tube connection process" and the "gas consumption instrument connection process" as described in a claim, respectively.

(Flexible pipe connection process A)
As shown in FIG. 4, in the connection method of the gas stopper 1 concerning this embodiment, it is comprised so that the flexible pipe | tube connection process A may be performed first. Hereinafter, the flexible pipe connecting step A will be described with reference to FIGS. 2 and 3.
As shown in FIGS. 2 and 3, in the flexible pipe connection step A, an operation of connecting the flexible pipe P to the pipe connection portion 2 </ b> A of the gas plug 1 is performed.

Specifically, the flexible pipe P is connected to the gas stopper 1 by inserting the pipe end of the flexible pipe P into the insertion opening 2Aa of the gas stopper 1 and then tightening the pipe joint 2Ab using a jig such as a wrench. It is carried out.
The flexible pipe connection process A is completed by connecting the flexible pipe P to the gas plug 1, and then the gas supply process B, which is the next process, is performed. As described above, in the case of using a gas stopper that can be connected only by inserting the flexible tube P into the insertion port, the flexible tube P can be connected by inserting the flexible tube P into the insertion port. It is possible to end step A.

(Gas supply process B)
In the gas supply process B, the operation of supplying gas to the gas plug 1 through the hard gas pipe Ph and the flexible pipe P is performed with the open / close valves such as a meter cock arranged around the gas meter in the “open” state.
In this state, since the valve body 10 (the first valve body 11 and the second valve body 12) of the gas plug 1 is in the “closed” state, no gas leaks from the socket joint connecting portion 2B.
The gas supply process B is completed by performing an operation of supplying gas to the gas plug 1, and then an air purge process C, which is the next process, is performed.

(Air purge process C)
In the air purge step C, the air mixed in the hard gas pipe Ph, the flexible pipe P and the gas plug is purged with a jig (not shown, for example, a gas adsorption container, hereinafter referred to as “air purge jig”). Evacuate (purge) using the

Such an operation can be easily performed by attaching a joint similar to the socket joint 50 to an air purge jig (a pressure-resistant hose connected to the jig) in advance.
That is, in this way, the valve body 10 (the first valve body 11 and the second valve body 12) of the gas plug 1 can be obtained simply by inserting the outlet joint of the air purge jig into the socket joint connection portion 2B of the gas plug 1. ) Can be automatically set to the “open” state, and air mixed in the flexible pipe P or the like can be fed into the air purge jig.

  In addition, what is necessary is just to move the outer side movement part (refer the outer side movement part 53 of the socket coupling 50) of a socket coupling to the gas plug 1 side, when removing a socket coupling from the gas plug 1. FIG. In this state, since the valve body 10 (the first valve body 11 and the second valve body 12) of the gas plug 1 is automatically in the “closed” state, gas leaks from the socket joint connecting portion 2B of the gas plug 1. There is nothing.

  The air purge process C is completed by purging air mixed inside the flexible pipe P or the like, and then a gas stove connection process D is performed.

(Gas stove connection process D)
In the gas stove connection step D, an operation of connecting the gas plug 1 (to which the flexible pipe P is connected) to the gas stove 20 is performed.
Specifically, an operation of inserting the socket joint connecting portion 2B of the gas plug 1 into the socket joint 50 attached to the gas stove 20 is performed.

As a result, the gas is automatically supplied to the gas stove 20 while the connection state between the gas plug 1 and the socket joint 50 is maintained.
Then, the operation | work by the attachment method of this gas stopper 1 is complete | finished by performing the combustion confirmation of the gas stove 20, etc.

  In addition, when removing the gas stopper 1 from the socket joint 50 (gas stove 20), the outer moving part 53 of the socket joint 50 should just be moved to the gas stove 20, and the fitting state of the ball | bowl 54 and the ditch | groove 2Ba should just be cancelled | released. Further, in this state, the valve body 10 (the first valve body 11 and the second valve body 12) of the gas plug 1 is automatically in the “closed” state, so that gas is supplied from the socket joint connecting portion 2B of the gas plug 1. There is no leakage.

As mentioned above, in this embodiment, when connecting the flexible pipe P to the gas stove 20,
(A) The flexible pipe P is connected to the pipe connecting portion 2A of the plug body 2 (gas plug 1).
(B) The socket joint connecting portion 2B of the plug body 2 is fitted into the socket joint 50 attached to the gas stove 20 and locked.
It is comprised so that the following steps may be taken.

  That is, in this embodiment, since the gas pipe 1 to which the flexible pipe P is connected is simply inserted into the socket joint 50 attached to the gas stove 20, the connection work between the flexible pipe P and the gas stove 20 is completed. Is very simple.

  In addition, according to the present embodiment, by providing a joint similar to the socket joint 50 in the air purge jig, the gas plug 1 can be easily connected to the air purge jig. Even if the air purge is performed before the pipe P is connected, the operation can be easily performed without complication.

  Furthermore, in this embodiment, the gas plug 1 that is in an “open” state simply by being inserted into the socket joint 50 and is in a “closed” state simply by being removed from the socket joint 50, that is, a “knob” as in the prior art is provided. Since the gas stopper 1 (see FIG. 5) of the type not used is used, it is possible to reduce the number of parts and improve the appearance.

  In addition, in this embodiment, after connecting the gas stopper 1 to the socket joint 50, it was comprised so that it could remove easily from the socket joint 50 by moving the outer side movement part 53, However, It cannot remove easily. It is also possible to configure as described above. In this case, for example, as shown in FIG. 3 (b), after connecting the gas plug 1 to the socket joint 50, the screws 100 (which are difficult to remove unless a screwdriver having a special tip shape is used are used. For example, it may be attached in a form in which it is difficult to remove a member that covers them (at least the outer moving portion 53 of the socket joint 50) with a triangle.

  Furthermore, in this embodiment, the gas stove 20 was illustrated as a gas consuming appliance to which the gas stopper 1 is connected. However, the present invention is not limited to this, and the present invention can be applied to all kinds of gas consuming appliances.

  In the present embodiment, the type of gas plug 1 that automatically enters the “closed” state when the gas plug 1 is removed from the gas stove 20 (socket joint 50) is used. It is also possible to use a gas stopper of a type that changes the state manually (a gas stopper provided with a so-called “knob”).

  As mentioned above, although embodiment which applied the invention made by this inventor was described, this invention is not limited by the description and drawing which make a part of indication of this invention by this embodiment. That is, it is added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Gas plug 2 Plug body 2A Pipe connection part 2Aa Insert 2Ab Pipe joint 2B Socket joint connection part 2Ba Groove 3 Gas passage 10 Valve body 11 1st valve body 12 2nd valve body 13 1st valve seat 14 2nd valve seat 15 Spring 16 Spring 20 Gas Stove 21 Gas Inlet Port 50 Socket Joint 50A Gas Plug Connection Portion 50B Gas Consuming Device Connection Portion 51 Main Body 52 Inner Movement Portion 53 Outer Movement Portion 54 Ball 55 Pusher 56 Spring 57 Spring 100 Screw P Flexible Tube SK System kitchen C Counter S Storage space W Wall

Claims (4)

A stopper body provided with a gas passage inside;
A gas stopper provided in the stopper body and provided with a valve body movable between an open position for opening the gas passage and a closed position for closing;
The plug body is
An upstream connection to which the flexible pipe is connected;
A downstream side connection portion connected to the appliance side connection portion attached to the gas consuming appliance,
The downstream connection portion is
Locked by inserting into the insertion port of the appliance side connection part,
A gas stopper characterized by that. The valve body is
While moving to the open position when the downstream connection portion is locked with respect to the instrument side connection portion,
It is configured to move to the closed position when the downstream connection portion is unlocked with respect to the instrument side connection portion.
The gas stopper according to claim 1.   The gas stopper according to claim 1 or 2, wherein a connection direction of the downstream connection portion with respect to the appliance side connection portion is orthogonal to a connection direction of the flexible pipe with respect to the upstream connection portion. . A plug body provided with a gas passage inside;
A gas plug connection method comprising a valve body provided in the plug body and movable between an open position for opening the gas passage and a closed position for closing the gas passage,
A flexible pipe connecting step of connecting a flexible pipe to the upstream side connection portion of the plug body;
After performing the flexible pipe connecting step, including a gas consuming appliance connecting step of connecting a downstream connecting portion of the plug body to an appliance side connecting portion attached to the gas consuming appliance,
The gas consuming equipment connecting step includes:
It is performed by inserting the downstream connection part into the insertion port of the appliance side connection part,
A method of connecting a gas stopper.