JP2004060961A - Gas range - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply carry out pipe connection work in a gas range even to a gas main pipe correspondent to a formerly installed gas range when exchanging the gas range. <P>SOLUTION: A first inlet 1 and a second inlet 2 which can be connected to the gas main pipe X are placed in a range main body 80. The first inlet 1 has a first main pipe connecting port 11 to which the gas main pipe X can be connected, a manifold connecting port 12 to which an upstream side end 31 of a manifold 3 is connected, a first side communication pipe connecting port 13 to which one end 41 of an inlet communication pipe 4 connected to the second inlet 2 is connected, and a first side gas circulation passage 10 communicating these mutually. The second inlet 2 has a second main pipe connecting port 21 to which the gas main pipe X can be connected, a second side communication pipe connecting port 22 to which the other end 42 of the inlet communication pipe 4 is connected, and a second side gas circulation passage 20 communicating these mutually. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a gas stove, and enables connection of a gas stove regardless of the position of the gas source pipe.
[0002]
[Prior art]
As shown in FIG. 12, in the gas stove, a manifold M for supplying gas to a gas burner B via a gas cock C is piped inside the stove main body 80, and a gas source piped outside the stove main body 80 is connected to this manifold M. Tube X is connected. For example, in the case of a gas stove installed in a countertop CT of a system kitchen in an embedded manner, the manifold M and the gas main pipe are connected at the bottom of the gas stove. That is, a window hole is formed in the bottom plate 84 of the stove body 80, and at this portion, the upstream end of the manifold M is connected to the gas source pipe X via the gas plug G, the joint pipe, and the like. In such a gas stove, a connection position between the manifold M and the gas source pipe X is installed in advance, and therefore, the gas source pipe X piped in the cabinet Cb is also piped in accordance with this connection position.
[0003]
[Problems to be solved by the invention]
However, the connection position of the gas stove with the gas source pipe X is not unified and differs depending on the manufacturer and the model. Therefore, when the gas stove is replaced with a new one, the connection position with the gas source tube X is not always required. May not match.
[0004]
For example, in the case of the gas stove shown in FIG. 12, a gas connection port at the upstream end of the manifold M is disposed in the intermediate portion 85C of the stove main body 80, and is connected to the gas source pipe X at the intermediate portion 85C. I have. Therefore, the gas source pipe X in the cabinet Cb is arranged so as to reach the position of the intermediate portion 85C.
[0005]
Even if the gas stove to be newly replaced has a different connection position between the gas stove and the previous gas stove, if the connection position with the gas stove X is set at the front portion 85F of the stove main body 80, the intermediate stove is replaced with the intermediate stove. By extending the gas source pipe X extended to the portion 85C with the joint pipe, the pipe connection with the manifold M can be relatively easily performed.
[0006]
However, if the connection position of the gas stove to be newly replaced is set at the rear portion 85B of the stove main body 80 with the gas main tube X, the gas main tube X becomes an obstacle, and it is difficult to connect at the rear portion 85B. It is necessary to cut and extend the extended gas source pipe X. Therefore, the pipe connection work of the gas source pipe X at the time of such replacement of the gas stove or the like becomes very troublesome.
[0007]
In view of the above circumstances, the present invention provides a gas stove according to the position of a gas stove even when the gas stove is previously replaced, such as when replacing the gas stove. That can easily perform the pipe connection work.
[0008]
[Means for Solving the Problems]
(1) The gas stove according to the present invention
In a gas stove equipped with a manifold that supplies gas to a gas burner by receiving gas from a gas source pipe in the stove body,
A first inlet and a second inlet, both of which can connect the gas source pipe, are installed in the stove body,
The first inlet is
A first main pipe connection port to which the gas main pipe can be connected;
A manifold connection port to which an upstream end of the manifold is connected;
A first-side connecting pipe connection port to which one end of an inlet connecting pipe connecting to the second inlet is connected;
A first side gas flow passage through which the first main pipe connection port, the manifold connection port, and the first side communication pipe connection port communicate with each other;
The second inlet is
A second main pipe connection port to which the gas main pipe can be connected;
A second-side connecting pipe connection port to which the other end of the inlet connecting pipe is connected;
The second main pipe connection port and the second side connection pipe connection port have a second gas flow passage communicating with each other.
[0009]
In this device, when a gas main pipe is connected to a first main pipe connection port in the first inlet, gas from the gas main pipe is supplied to the manifold through the first gas flow passage. On the other hand, when the gas main pipe is connected to the second main pipe connection port in the second inlet, the gas from the gas main pipe is sent to the inlet connecting pipe through the second side gas flow passage, and then the inlet is connected. It is sent to the first inlet through the communication pipe. Then, the gas sent to the first inlet is supplied to the manifold through the first gas flow passage of the first inlet. In addition, the first main pipe connection port and the second main pipe connection port enabling connection of the gas main pipe are connected via a joint pipe or a gas stopper in addition to the case where the gas main pipe is directly connected. This includes the case of indirect connection.
[0010]
As described above, regardless of whether the gas main pipe is connected to the first main pipe connection port of the first inlet or the second main pipe connection port of the second inlet, the gas from the gas main pipe is finally discharged. It can be supplied to the manifold.
[0011]
Therefore, since two main pipe connection ports are provided to enable connection of the gas main pipe, the gas main pipe is connected to the previously installed gas stove when replacing the gas stove. Even if it is piped, the main pipe connection port can be selected according to the pipe position of the gas main pipe without cutting the gas main pipe. As a result, the pipe connection work of the gas source pipe at the time of replacement of the gas stove or the like can be easily performed.
[0012]
(2) Further, the first main pipe connection port and the second main pipe connection port are opened downward to face the lower surface of the gas stove, and the manifold connection port, the first side connection pipe connection port, and the The second connection pipe connection port may be opened to the side.
In this case, the first main pipe connection port and the second main pipe connection port are opened downward and face the lower surface of the gas stove, so that the gas main pipe piped downward with respect to the stove main body is used. In addition, the pipe connection work of the gas source pipe at the time of replacement of the gas stove can be easily performed. Further, since the manifold connection port, the first side connection pipe connection port, and the second side connection pipe connection port are opened to the side, the manifold is often piped in a horizontal direction in the stove body. And the piping connection of the said inlet connection pipe can be performed easily.
[0013]
(3) Further, the first inlet may be provided at a rear portion of the stove main body, and the second inlet may be provided forward of the first inlet.
In this case, when the gas stove is replaced or the like, if the gas main pipe is provided behind the stove main body, the gas main pipe can be connected to the first main pipe connection port in the first inlet. On the other hand, if the gas source pipe is provided ahead of the rear part of the stove body, the gas source pipe can be connected to the second main pipe connection port in the second inlet without cutting. Therefore, even if the gas source pipe is piped forward of the rear part of the stove main body, the pipe connection can be made without cutting the gas source pipe, and the pipe connection work of the gas source pipe can be easily performed.
[0014]
(4) In the manifold, a horizontal pipe for arranging a gas burner is disposed at a front portion of the stove body, and an upstream end portion extends rearward from the horizontal pipe. The inlet may be disposed rearward of a lateral pipe of the manifold, and the second inlet may be disposed rearward of the first inlet.
In this case, the manifold can be greatly shortened because the manifold is composed of a horizontal pipe and an upstream end extending from the horizontal pipe. Then, an inlet communication pipe can be piped to the shortened portion of the manifold. Therefore, the piping space in the stove body can be saved, and the piping cost can be reduced.
[0015]
(5) Further, the first inlet or the second inlet is connectable to a spare plug communication pipe of a spare gas outlet, and is provided with a spare plug communication pipe connection port communicating with the second side gas flow passage. May be.
In this case, gas can be supplied from the gas source pipe to the spare gas outlet through the first inlet or the second inlet. Therefore, it is possible to easily install a spare gas outlet by using the connecting port for the spare plug of the first inlet or the second inlet. In addition, since the connection pipe connecting port for a spare plug in the first inlet or the second inlet enables connection of the communication pipe for a spare plug, retrofitting of a spare gas outlet can be easily performed.
In addition, for example, when the spare gas outlet is arranged on the front surface of the stove main body, the connecting pipe for the spare plug is provided at the first inlet or the second inlet arranged at the front of the stove body closest to the spare gas outlet. If the connection is made, the connecting pipe for the auxiliary plug can be shortened, which is advantageous because a large piping space is not required.
[0016]
(6) A third inlet for connecting the gas source pipe is installed in the stove body, the third inlet having a third source pipe connection port for connecting the gas source pipe, A third-side connecting pipe connection port to which the other end of the second inlet connecting pipe is connected, and a third-side gas flow passage through which the third main pipe connecting port and the third-side connecting pipe connecting port communicate with each other. One end of the second inlet communication pipe may be connected to a pipe connection port provided in the first inlet or the second inlet.
In this case, since there is a third main pipe connection port by the third inlet, the choice of the connection position of the gas main pipe is further increased. Therefore, it is not necessary to cut off the gas main pipe, and the closest optimum main pipe connection port can be selected according to the pipe position of the gas main pipe, and the pipe connection work of the gas main pipe at the time of replacement of the gas stove or the like can be performed. It can be performed more easily.
[0017]
(7) At least one of the inlets may be provided with a multipurpose pipe connection port.
In this case, a connecting pipe for a spare plug of a spare gas outlet, another manifold, a gas source pipe, or the like can be appropriately connected to the multipurpose pipe connection port. And, for example, when the multipurpose pipe connection port is arranged behind the stove body, when the spare gas outlet is arranged behind the upper surface of the stove body, it is not necessary to pipe the connection pipe for spare plug long, and Also, when connecting the gas source pipe which has been piped rearward to the stove main body, it is not necessary to pipe the joint pipe or the like long.
[0018]
When two inlets, a first inlet and a second inlet, are provided, one or both of these two inlets may be provided with the multipurpose pipe connection port. When three inlets of the first inlet, the second inlet, and the third inlet are provided, any one of these three inlets, any two of them, and all three of the above-mentioned multi-purposes are provided. A pipe connection port may be provided.
[0019]
【The invention's effect】
According to the gas stove according to the present invention (claim 1), first and second two main pipe connection ports for connecting a gas main pipe are provided. Even if a gas source pipe is piped in accordance with the installed gas stove, the source pipe connection port can be selected according to the pipe position of the gas source pipe without cutting the gas source pipe. As a result, the pipe connection work of the gas source pipe at the time of replacement of the gas stove or the like can be easily performed.
[0020]
Further, according to the gas stove according to the present invention (claim 2), the pipe connection operation of the gas source pipe below the gas stove body when the gas stove is replaced can be easily performed. Further, it is possible to easily connect the manifold and the inlet communication pipe, which are often piped horizontally in the stove body.
[0021]
Also, according to the gas stove according to the present invention (claim 3), even if the gas main pipe is piped forward of the rear part of the stove body, the front second main pipe connection port is not cut off without cutting the gas main pipe. The pipe connection of the gas source pipe can be easily performed.
[0022]
Further, according to the gas stove according to the present invention (claim 4), the manifold can be greatly shortened because the manifold is composed of the horizontal piping and the upstream end extending from the horizontal piping. An inlet communication pipe can be connected to the shortened portion of the manifold. As a result, the piping space in the stove body can be saved, and the piping cost can be reduced.
[0023]
Further, according to the gas stove according to the present invention (claim 5), it is possible to easily install a spare gas outlet using the connection pipe connection port for the spare plug of the first inlet or the second inlet. In addition, since the connection pipe connecting port for a spare plug in the first inlet or the second inlet enables connection of the communication pipe for a spare plug, retrofitting of a spare gas outlet can be easily performed.
[0024]
Moreover, according to the gas stove according to the present invention (claim 6), since the third main pipe connection port by the third inlet is provided, the choice of the connection position of the gas main pipe further increases. Therefore, it is not necessary to cut off the gas main pipe, and the closest optimum main pipe connection port can be selected according to the pipe position of the gas main pipe, and the pipe connection work of the gas main pipe at the time of replacement of the gas stove or the like can be performed. It can be performed more easily.
[0025]
According to the gas stove according to the present invention (claim 7), at least one of the inlets is provided with a multipurpose pipe connection port. For example, the multipurpose pipe connection port is disposed behind the stove body. In such a case, when the spare gas outlet is placed behind the top of the stove body, the connecting pipe for the spare plug does not need to be long, and when connecting the gas main pipe that was piped rearward to the stove body. In addition, it is not necessary to lengthen the joint pipe and the like. Therefore, the space for the piping can be saved even when the number of piping is increased.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
1 to 4 show a gas stove according to a first embodiment of the present invention. As shown in FIG. 1, the gas stove according to the first embodiment is suspended from a countertop CT of a system kitchen, and a box-shaped stove body 80 is installed in a cabinet Cb so as to be embedded therein. And on the upper surface of the stove main body 80, there are provided two stove portions 81 in which the gas burners B are arranged, and one of the stove portions 81 is provided with a temperature sensor SS for detecting the temperature of a cooking vessel such as a pan. . On the front surface of the stove main body 80, a door D of a grill portion 82 is provided at the center, and on both sides of the door D, knobs 83 for igniting the stove portion 81 and the grill portion 82 and controlling the thermal power are provided. .
[0027]
Further, the bottom plate 84 of the stove main body 80 is exposed in the cabinet Cb. The bottom plate 84 is provided with a first window hole 841 and a second window hole 842 at a front portion and a rear portion, respectively. In each of the first window hole 841 and the second window hole 842, a first main pipe connection port 11 and a second main pipe connection port 21 that can connect the gas main pipe X are connected to the bottom plate 84. It is provided so as to face the lower surface. Thus, the gas main pipe X piped downward in the cabinet Cb can be connected to either the first main pipe connection port 11 or the second main pipe connection port 21. In the gas stove shown in FIG. 1, the gas main pipe X is disposed almost at the middle of the stove main body 80, and therefore, the second main pipe connection port at the front part is provided through the joint pipes T <b> 1 and T <b> 2 and the gas stopper G. 21. In FIG. 1, the gas stopper G is provided, but need not be provided.
[0028]
[Gas stove piping structure]
As shown in FIG. 2, in the stove main body 80, a first inlet 1 provided at a rear portion of the bottom plate 84 and including the first main pipe connection port 11, and a front side of a piping position of the first inlet 1. A second inlet 2 provided at the front of the bottom plate 84 and having the second main pipe connection port 21, a manifold 3 for supplying gas to the gas burner B, the first inlet 1 and the second inlet 2. An inlet communication pipe 4 that connects the two inlets 2 is provided.
[0029]
[1st inlet 1]
As shown in FIGS. 3 and 4, the first inlet 1 is formed in a vertical cylindrical shape having a first side gas flow passage 10 therein, and the first inlet 1 to which the gas source pipe X can be connected. The main pipe connection port 11, the manifold connection port 12 to which the upstream end 31 of the manifold 3 is connected, and the first end 41 of the inlet communication pipe 4 that connects the second inlet 2 to the first end 41 are connected. A first-side connecting pipe connection port 13 and a first-side multi-purpose pipe connection port 14 for connecting a pipe inside the stove main body 80 or outside the stove main body 80 are provided.
[0030]
The first main pipe connection port 11, the manifold connection port 12, the first side connection pipe connection port 13, and the first multipurpose pipe connection port 14 are in communication with each other through an internal first side gas flow passage 10. It is in. In addition, the manifold connection port 12 and the first side communication pipe connection port 13 do not have to have the same diameter size. However, in this case, the manifold connection port 12 and the first side connection pipe connection port 13 are formed to have the same diameter size. It is considered that, for example, a difference in gas pressure between the first connection pipe connection port 13 and the first connection pipe port 13 is unlikely to occur.
[0031]
[First main pipe connection port 11]
The first main pipe connection port 11 is provided below the first inlet 1. The first main pipe connection port 11 is opened downward through a first window hole 841 provided in the bottom plate 84 of the stove main body 80 to face the lower surface of the bottom plate 84, so that the gas main pipe X piped downward can be connected. Like that.
[0032]
Further, a thread groove 11N is provided on the inner peripheral surface of the first main pipe connection port 11 so that the gas main pipe X or the joint pipes T1 and T2 connected to the gas main pipe X can be screw-connected ( See FIG. 3). However, in this case, since the gas main pipe X is connected to the second inlet 2 described later, the gas main pipe X is not connected to the first main pipe connection port 11 of the first inlet 1. Therefore, the seal plug S11 provided with the O-ring O11 is fitted and closed in the first main pipe connection port 11 to which the gas main pipe X is not connected. Thereby, gas leakage from the first main pipe connection port 11 not connected to the gas main pipe is prevented. Further, a locking plate K11 is screwed to the first main pipe connection port 11 from the outside with a screw N to prevent the seal plug S11 from coming off. The seal plug S11 and the locking plate K11 constitute a closing member when the pipe is not connected. Note that the seal plug S11 may be provided with an outer peripheral screw and screwed into the screw groove 11N. In this case, the locking plate K11 is unnecessary, and the closing member is constituted only by the screwed seal stopper S11.
[0033]
The screw hole for screwing the locking plate K11 may be exposed from the first window hole 841 of the bottom plate 84 of the stove body 80, or a screw may be inserted into the bottom plate 84 separately from the first window hole 841. A hole may be provided, and the locking plate K11 may be attached such that the bottom plate 84 is sandwiched between the screwed pieces of the locking plate K11.
[0034]
[Manifold connection port 12]
The manifold connection port 12 is provided on a side of the first inlet 1. This manifold connection port 12 is opened to the side, and the upstream end 31 of the manifold 3 is connected. The inner peripheral surface of the manifold connection port 12 is a smooth surface so that the upstream end 31 of the manifold 3 can be plugged in (see FIG. 4).
[0035]
The upstream end 31 of the manifold 3 inserted and connected to the manifold connection port 12 has a string bulging portion 31H and an O-ring 31P fitted outside. As a result, the space between the upstream end 31 of the manifold 3 and the manifold connection port 12 is made airtight, and gas leakage is prevented.
[0036]
In addition, at the manifold connection port 12 to which the upstream end 31 of the manifold 3 is inserted and connected, a locking plate K12 having a hole smaller in diameter than the swelling bulging portion 31H is externally fitted to the manifold 3. It is screwed to the first inlet 1 side with a screw N (see FIG. 2). As a result, even when a force is applied in the pulling-out direction, the swelling-out bulging portion 31H engages with the locking plate K12 to prevent the manifold 3 from being detached, and is fixedly connected. The details of the locking plate K12 are the same as the locking plate K13 described later.
[0037]
[First side connection pipe connection port 13]
The first connection pipe connection port 13 is provided at a side portion of the first inlet 1 at a position substantially 90 degrees away from the manifold connection port 12. The first side connection pipe connection port 13 is opened to the side, and one end 41 of the inlet connection pipe 4 is connected. The inner peripheral surface of the first side connection pipe connection port 13 is a smooth surface so that the one end 41 of the inlet connection pipe 4 can be plugged in (see FIG. 4).
[0038]
One end 41 of the inlet communication pipe 4 connected to the first side communication pipe connection port 13 is formed with a string bulging portion 41H and an O-ring 41P is externally fitted thereto. Thereby, the space between the one end 41 of the inlet communication pipe 4 and the first-side communication pipe connection port 13 is made airtight, and gas leakage is prevented.
[0039]
Further, a locking plate K13 having a hole having a diameter smaller than that of the string bulging portion 41H is provided at the first side connecting pipe connection port 13 to which the one end 41 of the inlet connecting pipe 4 is inserted and connected. 4 and screwed to the first inlet 1 side with a screw N (see FIGS. 2 and 3). As a result, even when a force acts in the pull-out direction, the cord connecting tube 4 engages with the swelling and bulging portion 41H with the locking plate K13 so that the inlet connecting tube 4 is prevented from coming off and is connected and fixed.
[0040]
[First side multipurpose pipe connection port 14]
The first-side multipurpose pipe connection port 14 is provided above the first inlet 1. The first-side multi-purpose pipe connection port 14 is opened upward, and is, for example, connected to a spare plug connection pipe or a stove main body 80 when a spare gas outlet is disposed behind the upper surface of the stove main body 80. It can be used to connect a joint pipe of a gas source pipe. As a result, it is not necessary to lengthen the connecting pipe for the auxiliary plug, the joint pipe of the gas source pipe, and the like.
[0041]
However, in this case, the pipe is not connected to the first-side multipurpose pipe connection port 14 (see FIGS. 2 and 3). Therefore, similarly to the first main pipe connection port 11, the first multi-purpose pipe connection port 14 which is not connected to the pipe has a closing member (a seal stopper S14 provided with an O-ring O14 and a screw N). The stop plate K14) prevents gas leakage from the first-side multipurpose pipe connection port 14 (see FIG. 3).
[0042]
The first-side multipurpose pipe connection port 14 may be provided on a side of the first inlet 1. Although the first inlet 1 is provided with the first-side multipurpose pipe connection port 14, the first inlet 1 may be embedded without providing the first-side multipurpose pipe connection port 14.
[0043]
[2nd inlet 2]
As shown in FIGS. 3 and 4, the second inlet 2 is formed in a vertical cylindrical shape having a second side gas flow passage 20 therein, and the second inlet 2 to which the gas source pipe X can be connected. , A second connection pipe connection port 22 to which the other end 42 of the inlet connection pipe 4 is connected, and a second multipurpose pipe connection port 23. The second main pipe connection port 21, the second connection pipe connection port 22, and the second multipurpose pipe connection port 23 are in communication with each other through the internal second gas flow passage 20.
[0044]
[Second main pipe connection port 21]
The second main pipe connection port 21 is provided below the second inlet 2.
The second main pipe connection port 21 is opened downward through a second window hole 842 provided in the bottom plate 84 of the stove main body 80, faces the lower surface of the bottom plate 84, and can be connected to the gas main pipe X piped downward. Like that.
[0045]
Further, a thread groove 21N is provided on the inner peripheral surface of the second main pipe connection port 21 so that the gas main pipe X or a joint pipe connected to the gas main pipe X can be screw-connected (see FIG. 3). reference). In this embodiment, a gas main pipe X is screw-connected to a second main pipe connection port 21 of the second inlet 2 via a joint pipe T2. An O-ring O is disposed at the bottom of the second main pipe connection port 21 to which the joint pipe T2 is screw-connected, and a joint pipe T2 connected to the gas main pipe X by a seal of the O-ring O is provided. A gas leak is prevented by connecting the second main pipe connection port 21 and the second main pipe connection port 21 in an airtight state.
[0046]
When the gas main pipe X is not connected to the second main pipe connection port 21, a closing member (seal plug, locking plate) is used as in the case of the first main pipe connection port 11 not connected to the pipe. Closed with. In addition, if the first main pipe connection port 11 and the second main pipe connection port 21 have the same shape and size, a single closing member (made of a seal plug, a locking plate, or the like) can be used as a common one. It is also possible to use one of the first main pipe connection port 11 and the second main pipe connection port 21 on the side where the pipe is not connected.
[0047]
[Second-side communication pipe connection port 22]
The second side communication pipe connection port 22 is provided on a side portion of the second inlet 2, is opened to the side, and is connected to the other end 42 of the inlet communication pipe 4. The inner peripheral surface of the second-side communication pipe connection port 22 is a smooth surface so that the other end 42 of the inlet communication pipe 4 can be inserted and connected (see FIGS. 3 and 4).
[0048]
The other end portion 42 of the inlet communication tube 4 inserted and connected to the second-side communication tube connection port 22 has a string bulging portion 42H and an O-ring 42P fitted outside. As a result, the space between the other end 42 of the inlet communication pipe 4 and the second-side communication pipe connection port 22 is made airtight to prevent gas leakage.
[0049]
In addition, a locking plate K22 having a hole smaller in diameter than the swelling bulging portion 42H is connected to the second side connecting pipe connecting port 22 to which the other end 42 of the inlet connecting pipe 4 is inserted and connected. It is externally fitted to the tube 4 and screwed to the first inlet 1 side with a screw N. As a result, even when a force acts in the pull-out direction, the cord connecting tube 4 engages with the swelling bulging portion 42H with the locking plate K22 to prevent the inlet connecting tube 4 from coming off, and is connected and fixed.
[0050]
[Second side multipurpose pipe connection port 23]
The second-side multipurpose pipe connection port 23 is provided above the second inlet 2. The second-side multipurpose pipe connection port 23 is opened upward, and can be used to connect, for example, a connecting pipe for a spare plug when a spare gas outlet is arranged on the front surface of the stove body 80. Accordingly, there is no gas pressure loss caused when the connecting pipe for spare plug is branched from the manifold 3 or the inlet connecting pipe 4, and retrofitting of the connecting pipe for spare plug or the like can be easily performed.
[0051]
However, in this case, no pipe is connected to the second-side multipurpose pipe connection port 23 (see FIGS. 2 and 3). Therefore, the second side multipurpose pipe connection port 23 to which the pipe is not connected is closed with a sealing member (a locking plate K23 which is closed with a seal stopper S23 provided with an O-ring O23 and is screwed with a screw N outside). Thus, gas leakage from the second-side multipurpose pipe connection port 23 is prevented (see FIG. 3).
[0052]
The second multipurpose pipe connection port 23 may be provided on the side of the second inlet 2. Further, the second inlet 2 is provided with the second-side multipurpose pipe connection port 23, but may be embedded without providing the second-side multipurpose pipe connection port 23.
[0053]
[Manifold 3]
The manifold 3 includes a forward pipe section 3A that is bent in the shape of a letter in the vicinity of a connection portion with the first inlet 1 that extends rearward and extends forward, and a horizontal pipe section 3B that is bent in a horizontal direction at a substantially right angle at the front. It is formed in an L-shape. At the front part of the manifold 3, cock attachment portions 32 of the gas cock C are provided at two places on the right and left sides of the stove body 80.
In the horizontal piping 3B of the manifold 3, the intermediate portion 300 is disposed lower than the left and right cock attachment portions 32 so that the formation of the grill portion 82 is not obstructed.
[0054]
Then, a crank-shaped leg 33 is welded and connected to a lower portion of the horizontal pipe 3B where each cock attachment portion 32 is provided, and the leg 33 is screwed to the bottom plate 84 of the stove body 80 with a screw N. The manifold 3 is fixed to the stove main body 80. Each of the cock mounting portions 32 has two flanges 32a each provided with a gas hole a communicating with a gas cock C mounted on an upper portion and cock mounting holes b on both sides thereof. A hole communicating with the gas hole a of the flange 32a is provided at the position of the cock attachment portion 32 of the manifold 3 (not shown).
[0055]
[Inlet connecting pipe 4]
The inlet connecting pipe 4 is bent in the shape of a letter in the opposite direction to the manifold 3 near the connection portion with the first inlet 1 at the rear, and extends forward, and is bent toward the manifold 3 at a middle forward portion. And near the connecting portion with the second inlet 2, it is bent in a V-shape so as to be parallel to the forward pipe portion 3 </ b> A of the manifold 3. The outer diameter of the inlet communication pipe 4 does not have to be the same outer diameter as that of the manifold 3. However, in this embodiment, since the outer diameter of the inlet communication pipe 4 is the same as that of the manifold 3, the outer diameter of the manifold 3 is different from that of the inlet. It is considered that, for example, a difference in gas pressure hardly occurs with the communication pipe 4.
[0056]
A cover plate K is attached above the inlet communication pipe 4. The cover plate K has substantially the same shape as the inlet communication tube 4 and covers a top of the inlet communication tube 4, and a screw hole formed at one end of the cover portion and provided at an upper portion of the first inlet 1. 2 and a screw hole formed in the other end of the cover and provided in the upper portion of the second inlet 2 and the other mounting piece screwed (see FIG. 2). Is indicated by a broken line). Thereby, when boiling etc. occurs from the stove section 81 in which the gas burner B on the upper side is installed, the broth or the like spilling into the stove body 80 by the cover plate K is avoided and the broth or the like is supplied to the inlet connecting pipe 4. To prevent it from falling.
[0057]
It should be noted that a cover plate having a substantially same shape as the advance pipe 3A and having a cover portion for covering an upper portion of the advance pipe 3A may be attached to the advance pipe 3A in the manifold 3. In this case, the one mounting piece may be screwed to the first inlet 1 in the same manner as described above, but the other mounting piece screwed to the second inlet 2 may be, for example, a forward pipe 3A of the manifold 3. It is only necessary to use a leg piece that is fitted into the vehicle and fixed to the forward pipe 3A of the manifold 3. Then, the cover plate can be stably attached also above the advance pipe 3A of the manifold 3, whereby it is possible to prevent boiling over from the upper stove portion 81 from falling onto the manifold 3.
[0058]
[Piping of gas main pipe X]
In the gas stove according to the first embodiment configured as described above, the upstream end 31 of the manifold 3 is connected to the manifold connection port 12 of the first inlet 1. On the other hand, the first inlet 1 is connected to one end 41 of the inlet connecting pipe 4 extending forward of the stove body 80, and the other end 42 of the inlet connecting pipe 4 is connected to the second inlet 2. It is connected. Thereby, the manifold 3 and the inlet communication pipe 4 are communicated via the first inlet 1. Therefore, when the gas main pipe X is directly or indirectly connected to the second main pipe connection port 21 of the second inlet 2, gas is supplied into the manifold 3 via the inlet communication pipe 4 and the first inlet 1. You.
[0059]
In addition, even if the gas main pipe X is directly or indirectly connected to the first main pipe connection port 11 of the first inlet 1, the gas is supplied into the manifold 3 through the first inlet 1. In this case, the second main pipe connection port 21 in the second inlet 2 is closed by the closing member.
[0060]
Thus, the gas is supplied from the gas source pipe X into the manifold 3 regardless of whether the gas source pipe X is connected to the first inlet 1 or the second inlet 2. Therefore, since two first main pipe connection ports 11 and two second main pipe connection ports 21 for connecting the gas main pipe X are provided, when replacing the gas stove or the like, the previously installed gas stove is used. The first main pipe connection port 11 and the second main pipe connection port 21 that can be connected without cutting the gas source pipe X are connected to the gas It can be selected according to the pipe position of the pipe X. As a result, the work of connecting the gas source pipe X at the time of replacing the gas stove or the like can be easily performed. In particular, in the case where the gas source pipe X is piped at an intermediate portion in front of the rear part of the stove body 80 as in the first embodiment, the connection is easily made at the first main pipe connection port 11 behind. Although it was not possible, by connecting the gas source pipe X to the front second main pipe connection port 21, pipe connection can be performed without cutting the gas source pipe X, and the pipe connection work of the gas source pipe X is simplified. Can be done.
[0061]
Also, in this case, the first main pipe connection port 11 and the second main pipe connection port 21 are opened downward and face the lower surface of the gas stove, so that they are piped downward to the stove body 80. With respect to the gas source pipe X, the pipe connection work of the gas source pipe X at the time of replacement of the gas stove or the like can be easily performed.
[0062]
Further, since the manifold connection port 12, the first-side connection pipe connection port 13, and the second-side connection pipe connection port 22 are all opened to the side, they are piped horizontally in the stove body 80. Pipe connection of the manifold 3 and the inlet communication pipe 4 can be easily performed.
[0063]
(Embodiment 2)
5 and 6 show a piping structure of a gas stove according to Embodiment 2 of the present invention. The gas stove according to the first embodiment is provided with a spare gas outlet (hereinafter, appropriately referred to as “spare plug”) Y. That is, the second-side multipurpose pipe connection port 23 provided at the upper part of the second inlet 2 is used as a spare plug connection pipe connection port 23. 5 is plugged in.
[0064]
The connection end portion 51 of the auxiliary plug connecting pipe 5 has a string bulging portion 51H and an O-ring 51P fitted outside. As a result, the space between the connection end 51 of the auxiliary plug connection pipe 5 and the auxiliary plug connection pipe connection port 23 is made airtight, and gas leakage is prevented. Further, a locking plate K23 having a hole whose diameter is smaller than that of the swelling bulging portion 51H is provided at the connecting port 23 of the preliminary plug connecting pipe to which the connection end portion 51 of the preliminary connecting pipe 5 is inserted. It is externally fitted to the auxiliary plug connecting pipe 5 and is screwed to the second inlet 2 side with a screw N. As a result, even if a force acts in the pulling-out direction, the stringing bulging portion 51H engages with the locking plate 23K to prevent the auxiliary plug connecting tube 5 from being pulled out, and is connected and fixed.
[0065]
In addition, the auxiliary plug connecting pipe 5 extends upward from the auxiliary plug connecting pipe connection port 23, bends rearward, and bends obliquely downward on the opposite side of the manifold 3 from the advance pipe 3A, and then forward. It is formed so as to be bent and dive below the manifold 3 and extend forward, and bend toward the forward pipe 3A side of the manifold 3 near the front surface of the stove body 80. Thus, a compact piping that effectively uses the space in the stove main body 80 can be performed without expanding the piping space for the auxiliary plug connecting pipe 5 in the stove main body 80.
[0066]
A spare plug connector 53 is attached to the distal end portion 52 of the spare plug connecting pipe 5, and a spare plug Y screwed with a screw N is attached to the spare plug connector 53. This spare plug Y is arranged on the left side of the front surface of the stove body 80.
[0067]
Further, the auxiliary plug Y is fixed to a Z-shaped bracket 54 screwed with a screw N to the left leg 33 to which the manifold 3 is fixed, with its rear end screwed with a screw N. Thus, the position of the auxiliary plug Y is determined by the leg 33 of the manifold 3, and the position of the communication pipe 5 for the auxiliary plug is determined based on the position of the auxiliary plug Y and the second inlet 2. Is determined, the assembly of the spare plug Y and the connecting pipe 5 for the spare plug is simplified, and the correlation between the parts can be maintained.
[0068]
When the auxiliary plug Y is disposed on the right side of the front surface of the stove body 80, the auxiliary plug connecting pipe 5 is extended rightward from the lowermost portion extending diagonally downward, and the cock mounting portion 32 on the right side of the manifold 3 is extended. The auxiliary plug Y may be attached and fixed to the right leg 33 of the manifold 3 so as to dive below. Also in this case, it is possible to ensure the correlation between the components such as the spare plug Y and the connecting pipe 5 for the spare plug. The other configuration is the same as that of the first embodiment (in FIG. 5, the left gas cock C and the gas burner B are omitted).
[0069]
As described above, in the second embodiment, the gas can be supplied from the gas source pipe X to the auxiliary plug Y through the second inlet 2. Therefore, the auxiliary plug Y can be easily installed by using the auxiliary plug connecting pipe connection port 23 of the second inlet 2. In addition, since the connection pipe connection port 23 for the auxiliary plug in the second inlet 2 allows the connection pipe 5 for the auxiliary plug to be plugged in, the connection pipe 5 for the auxiliary plug branches off from the manifold 3 or the inlet communication pipe 4. There is no gas pressure loss that would occur in such a case, and the replacement of the auxiliary plug Y can be easily performed.
[0070]
(Embodiment 3)
FIG. 7 shows a piping structure of a gas stove according to Embodiment 3 of the present invention. This is one in which a third inlet 6 enabling connection of the gas source pipe X is installed in the stove main body 80. That is, the second inlet 2 ′ is arranged at the intermediate portion of the stove body 80, which is located forward of the first inlet 1 and behind the third inlet 6, and is connected from the second inlet 2 ′ by the second inlet connecting pipe 7. The third inlet 6 is arranged at the front of the stove body 80, which is located forward of the second inlet 2 '.
[0071]
In addition to the structure of the second inlet 2, one end of the second inlet communication pipe 7 is inserted and connected to the side of the second inlet 2 ′ in the third embodiment. A connection port 24 is provided. A second window hole 842 'is provided in the middle portion of the stove body bottom plate 84 at the installation position of the second inlet 2', and the second main pipe connection port 21 'faces the lower surface.
[0072]
The third inlet 6 has the same configuration as the second inlet 2 described in the first and second embodiments, and the other end of the second inlet communication pipe 7 is connected to a third-side communication pipe connection port ( It is the same as the second-side connecting pipe connection port 22 in the first and second embodiments.) 62. A locking plate K62 is attached to the third-side connecting pipe connection port 62. The upper multipurpose pipe connection port 63 is closed by a closing member (seal plug, locking plate K63) because the pipe is not connected.
[0073]
A third window hole (not shown; however, corresponds to the position of the second window hole 842 in FIG. 1) is provided at the front portion of the stove body bottom plate 84 at the installation position of the third inlet 6. The third main pipe connection port 61 faces the lower surface.
[0074]
The plug-in connection structure of the second inlet connecting pipe 7 to the second inlet 2 ′ and the third inlet 6 corresponds to the first inlet 1 and the second inlet of the inlet connecting pipe 4 described in the first embodiment. It is the same as the insertion connection structure for the two inlets 2. Other configurations are the same as those in the first embodiment.
[0075]
As described above, in the third embodiment, since there are three main pipe connection ports with three inlets, the number of options for the connection position of the gas main pipe X is further increased as compared with the first and second embodiments. It will be. Therefore, the gas main pipe X does not need to be cut, and the closest optimum main pipe connection ports 11, 21 ', 61 can be selected according to the piping position of the gas main pipe X, and the gas stove is replaced when the gas stove is replaced. The pipe connection work of the gas source pipe X can be performed more easily. In particular, when the gas main pipe X is piped in the middle part of the stove body 80, the second main pipe in the middle part does not need to be extended to the third main pipe connection port 61 in the front part. The connection port 21 'and the gas source pipe X can be connected by piping.
[0076]
(Embodiment 4)
FIG. 8 shows a piping structure of a gas stove according to Embodiment 4 of the present invention. As in the third embodiment, a third inlet 6 'that allows connection of the gas source pipe X is installed at the rear right side inside the stove main body 80, but the third inlet 6' is similar to the third embodiment. It is connected to the first inlet 1 'by a 2 inlet connecting pipe 7'. Therefore, a second inlet communication pipe connection port 15 to which one end of the second inlet communication pipe 7 'is inserted and connected is provided on the side of the first inlet 1'. A locking plate K15 for preventing the second inlet communication pipe 7 'from coming off is attached to the second inlet communication pipe connection port 15 in the first inlet 1'.
[0077]
The third inlet 6 ′ is disposed on the rear right side of the stove main body 80, and a third window hole (not shown) is provided on the rear right side of the stove main body bottom plate 84 at this installation position. 'The lower third main pipe connection port 61' faces the lower surface. The third inlet 6 ′ has the same configuration as the second inlet 2 described in the first and second embodiments, and the other end of the second inlet communication pipe 7 ′ is connected to the third-side communication pipe connection port 62. '(Similar to the second-side connecting pipe connection port 22 in the first and second embodiments). A locking plate K62 'for preventing the second inlet communication pipe 7' from coming off is attached to the third side connection pipe connection port 62 'in the third inlet 6'. The upper multipurpose pipe connection port 63 'is closed by a closing member (seal plug, locking plate K63') because the pipe is not connected.
[0078]
The plug-in connection structure of the second inlet communication pipe 7 'to the first inlet 1' and the third inlet 6 'is the same as that of the first inlet 1 of the inlet connection pipe 4 described in the first embodiment. This is the same as the insertion connection structure for the second inlet 2 described above. Other configurations are the same as those in the first embodiment.
[0079]
As described above, in the fourth embodiment as well, the closest optimal main pipe connection port 11, 21, 61 ′ can be selected according to the piping position of the gas main pipe X as in the case of the third embodiment. In addition, the pipe connection work of the gas source pipe X at the time of replacement of the gas stove can be performed more easily. In particular, when the gas main pipe X is provided on the right side of the rear portion of the stove body 80, the joint main pipe does not extend to the first main pipe connection port 11 or the second main pipe connection port 21 on the opposite left side. However, the third main pipe connection port 61 'on the rear right side and the gas main pipe X can be connected by piping.
[0080]
(Embodiment 5)
FIG. 9 shows a piping structure of a gas stove according to Embodiment 5 of the present invention. In this embodiment, the first inlet 1 "is arranged at the front part of the stove body 80 ahead of the second inlet 2", and the second inlet 2 "is arranged at the rear part of the stove body 80. In the manifold 3 ', a horizontal pipe 3B for arranging the gas burner B is disposed at the front of the stove body 80, and an advancing pipe 3A' which becomes an upstream end 31 'extends rearward from the horizontal pipe 3B. Is established.
[0081]
The first inlet 1 "is disposed behind the horizontal pipe 3B of the manifold 3 ', and the manifold connection port 12' of the forward pipe 3A 'extending rearward from the horizontal pipe 3B. The upstream end portion 31 'is inserted and connected, and is prevented from falling off by a locking plate K12', and a first side connection pipe connection port 13 'provided on the opposite side to the manifold connection port 12'. Is connected to one end of the inlet communication pipe 4 'and is prevented from falling off by a locking plate K13'.
[0082]
The second inlet 2 "is disposed rearward of the first inlet 1", and the other end of the inlet communication pipe 4 'is connected to the second side communication pipe connection port 22 ". The stopper plate K22 "prevents the plate from coming off.
[0083]
Since the multi-purpose pipe connection port 14 ′ of the first inlet 1 ″ and the multi-purpose pipe connection port 23 ″ of the second inlet 2 ″ are not connected to the pipe, the closing members (seal plug, locking plate K 14 ′, K23 ″), and the first main pipe connection port 11 ′ or the second main pipe connection port 21 ″ to which the gas main pipe X is not connected is also closed with a closing member (seal plug, locking). The other configuration is the same as that of Embodiment 1. Note that the left gas cock C and gas burner B are omitted in FIG.
[0084]
As described above, in the fifth embodiment, the manifold 3 'can be constituted by the horizontal pipe 3B and the forward pipe 3A' which is the upstream end 31 extending from the horizontal pipe 3B. The forward pipe 3A 'of the manifold 3' can be significantly shortened as compared with the first to fourth embodiments. In addition, the inlet communication pipe 4 ″ can be piped to the shortened portion of the forward pipe 3A ′. Therefore, the pipe space in the stove body 80 can be saved, and the pipe cost can be reduced.
[0085]
(Other)
Note that the present invention is not limited to the above embodiments.
For example, as shown in FIG. 10, the first inlet 1 (1 ′, 1 ″) may be provided with an electromagnetic valve that closes the first gas passage 10 when a gas leak is detected. That is, the solenoid valve 9 is inserted and installed in the first side multipurpose pipe connection port 14 on the upper side where the pipe is not connected.
[0086]
The solenoid valve 9 has an O-ring P9, which is in close contact with the inner peripheral surface of the first-side gas flow passage 10, fitted outside the insertion portion to prevent gas leakage from the first-side multipurpose pipe connection port 14. It is attached to the first inlet 1. The solenoid valve 9 has a valve body 91 which is normally in a retracted state, and the valve body 91 is arranged above the first side gas flow passage 10 on standby. On the other hand, a step portion 110 for receiving the valve element 91 is formed in the inner peripheral surface of the middle of the first side gas flow passage 10 and slightly below.
[0087]
When a gas leak detection signal is output from a gas leak sensor installed at a predetermined location inside or outside the gas stove, the valve body 91 moves forward and comes into contact with the step 110, and the manifold connection port 12 and the first side The connection pipe connection port 13 is closed (shown by a dotted line in FIG. 10). Accordingly, even if the gas source pipe X is connected to the first inlet 1 or the second inlet 2, the gas is shut off at the first inlet 1 to which the upstream end 31 of the manifold 3 is connected. Gas is no longer supplied to
[0088]
Also, as shown in FIG. 11, when the gas source pipe XX is piped rearward to the gas stove, the gas source pipe XX is connected to the first-side multipurpose pipe connection port 14 above the first inlet 1. You may make it do. In this case, a back window hole 88 is provided on the back of the stove main body 80 to guide the gas source pipe XX. In this case, since the first main pipe connection port 11 of the first inlet 1 and the second main pipe connection port 21 of the second inlet are not connected to the pipe, they are closed by the closing member.
[0089]
In addition, a thread groove may be provided on the inner peripheral surface so that a part or the whole of each pipe connection port in the first inlet 1, the second inlet 2, the third inlet 6, and the like is connected with a screw.
[Brief description of the drawings]
FIG. 1 is a side view showing a connection structure of a gas main pipe of a gas stove according to a first embodiment.
FIG. 2 is a perspective view showing a pipe connection structure for a gas stove according to the first embodiment.
FIG. 3 is a partial cross-sectional side view showing a gas stove pipe connection structure according to the first embodiment.
FIG. 4 is a partial sectional plan view showing a gas stove pipe connection structure according to the first embodiment.
FIG. 5 is a perspective view showing a gas stove according to a second embodiment and showing a pipe connection structure to which a spare gas outlet is attached.
FIG. 6 is a partial cross-sectional side view showing a gas stove pipe connection structure according to a second embodiment.
FIG. 7 is a perspective view showing a gas stove according to a third embodiment and showing a pipe connection structure provided with a third main pipe connection port.
FIG. 8 is a perspective view showing a gas stove according to a fourth embodiment and showing a pipe connection structure provided with a third main pipe connection port.
FIG. 9 is a perspective view showing a pipe connection structure for a gas stove according to a fifth embodiment.
FIG. 10 is a cross-sectional view showing an example of a configuration in which a solenoid valve is mounted on a first inlet as another embodiment.
FIG. 11 is a perspective view showing a gas stove pipe connection structure according to another embodiment.
FIG. 12 is a side view showing a connection structure of a gas source pipe in a conventional gas stove.
[Explanation of symbols]
1 1st inlet
2 Second inlet
3 Manifold
4 Inlet connecting pipe
5 Connecting pipe for spare plug
6 Third inlet
7 2nd inlet communication pipe
9 Solenoid valve
11 1st main pipe connection port
12 1st side connection pipe connection port
13 Manifold connection port
14 1st side multipurpose piping connection port
21 Second main pipe connection port
22 Second side connection pipe connection port
23 2nd side multipurpose piping connection port
80 Stove body
84 Stove bottom plate
841 first window hole
842 Second window hole
B Gas burner
C gas cock
Cb cabinet
G gas tap
K11, K12, K13, K14, K21, K23 Locking plate
S11, S14, S23 Seal stopper
T1, T2 fitting pipe
X gas main pipe
Y Spare gas outlet

Claims (7)

In a gas stove equipped with a manifold that supplies gas to a gas burner by receiving gas from a gas source pipe in the stove body,
A first inlet and a second inlet, both of which can connect the gas source pipe, are installed in the stove body,
The first inlet is
A first main pipe connection port to which the gas main pipe can be connected;
A manifold connection port to which an upstream end of the manifold is connected;
A first-side connecting pipe connection port to which one end of an inlet connecting pipe connecting to the second inlet is connected;
A first side gas flow passage through which the first main pipe connection port, the manifold connection port, and the first side communication pipe connection port communicate with each other;
The second inlet is
A second main pipe connection port to which the gas main pipe can be connected;
A second-side connecting pipe connection port to which the other end of the inlet connecting pipe is connected;
A gas stove characterized by having a second side gas flow passage through which the second main pipe connection port and the second side connection pipe connection port communicate with each other. The gas stove according to claim 1,
The first main pipe connection port and the second main pipe connection port are opened downward and face the lower surface of the gas stove,
A gas stove characterized in that the manifold connection port, the first-side connection pipe connection port, and the second-side connection pipe connection port are opened to the side. The gas stove according to claim 1 or 2,
The first inlet is provided at a rear portion of the stove body,
A gas stove characterized in that the second inlet is disposed forward of the first inlet. The gas stove according to claim 1 or 2,
In the manifold, a horizontal pipe for arranging a gas burner is arranged at a front portion of the stove body, and an upstream end is extended rearward,
The first inlet is disposed rearward of a lateral pipe of the manifold,
The said 2nd inlet is arrange | positioned behind the said 1st inlet, The gas stove characterized by the above-mentioned. The gas stove according to any one of claims 1 to 4,
The first inlet or the second inlet is connectable to a spare plug connecting pipe of a spare gas outlet, and is provided with a spare plug connecting pipe connecting port communicating with the second side gas flow passage. And a gas stove. The gas stove according to any one of claims 1 to 5,
A third inlet enabling connection of the gas source pipe is installed in the stove body,
The third inlet is
A third main pipe connection port capable of connecting the gas main pipe,
A third-side connecting pipe connection port to which the other end of the second inlet connecting pipe is connected;
A third gas flow passage in which the third main pipe connection port and the third side connection pipe connection port communicate with each other;
A gas stove characterized in that one end of the second inlet communication pipe is connected to a pipe connection port provided in the first inlet or the second inlet. The gas stove according to any one of claims 1 to 6,
At least one of the inlets is provided with a multipurpose pipe connection port.

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