JPS626360Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a switching type gas tank used in a parent-child burner.

Conventionally, as shown in the first diagram, a gas tank of this type has an inlet a leading to a gas source, a first outlet b leading to a parent burner, and a second outlet c leading to a child burner. A type in which a closing body g having a common communication path e communicating with the inlet a and the outlet bc is rotatably fitted into the main body d is known; Now, the change in the amount of gas accompanying the rotation of the closed body g is as shown in FIG. 2, for example. That is, the parent burner changes as shown by line M, but the child burner remains approximately constant as shown by line S. Thus, when the child burner is located at the center and the parent burner is located at the outer periphery, the center This is accompanied by the disadvantage that large unevenness in heat distribution tends to occur between the outer circumferential portion and the outer circumferential portion.

The purpose of the present invention is to obtain a gas tank free of such inconveniences, and is provided with an inlet 1 connected to a gas source and a first outlet 2 connected to a parent burner, which are out of quadrature phase. A rotatable closing member 7 is provided in the pot main body 4 having a second outlet 3 which is connected to a slave burner provided axially shifted from the first outlet 2. The inlet 1
and a first passage 5 communicating with the first outlet 2,
The first passage 5 opens its outlet side passage hole 5b with its phase shifted from the inlet side passage hole 5a by an angle slightly less than 2 right angles, and
The inlet 1 provided in the is made larger than the diameter of the first outlet 2, and the outlet side through hole 5b communicates with the first outlet 2 after the inlet side through hole 5a communicates with the inlet 1. The first passage 5 is branched from the first passage 5 in the closure body 7, and the inlet side passage 5a and the inlet passage 1 are connected to each other. A second passage 6 that communicates with the second outlet 3 when the hole 5a communicates, and a side passage 8 that communicates the first outlet 2 and the second outlet 3 are provided, and the side passage 8 is connected to the outlet side. Almost simultaneously with the communication and release of communication with the first outlet 2 of the through hole 5b, the first outlet 2 and the second outlet 3
Provided at a location where communication and cancellation will take place,
Further, an orifice or other gas amount adjusting member 9 is interposed on the upstream side of the second outlet 3.

FIG. 3 shows an example of its implementation, and FIGS. 4 and 5 show its respective modifications. It consists of a groove of an appropriate length. To explain the operation, when the rotation angle of the closing body 7 is 0 degrees, the inlet side through hole 5a of the inlet 1 and the first communication passage 5, and the outlet side through hole 5a of the first outlet 2 and the first passage 5 are closed. 5b and the side passage 8 that communicates the first outlet 2 and the second outlet 3 do not overlap each other as shown in FIGS. 6A to 9A, and the pot is in a fully closed state, but Next, if the closing body 7 is largely rotated counterclockwise to a position of, for example, 110 degrees, the inlet 1 and the inlet side through hole 5a, the first outlet 2, the outlet side through hole 5b, and the first The side passages 8 that communicate the outlet 2 and the second outlet 3 overlap each other, so that the pot is fully opened.

Next, if this is slightly tightened, that is, rotated clockwise to the 55 degree position, for example, Figures 6c to 9
As shown in Figure c. That is, the degree of overlap between the first outlet 2 and the inlet side passage hole 5a gradually decreases, and the degree of overlap between the first outlet 2 and the second outlet 3 of the side channel 8 also gradually decreases until the final stage. Then, there is no overlap between the first outlet 2 and the outlet side passage hole 5b, and the main burner gradually stops operating, and the communication between the first outlet 2 and the second outlet 3 through the side passage 8 is also terminated. Then, gas is supplied to the child burner through the second outlet 6.

At this time, the gas amount adjusting member 9 in the outlet 6 acts to set the gas amount to a relatively small amount. Next, if this is further rotated to the constriction side, that is, clockwise, to a position of, for example, 27.5 degrees, the states shown in FIGS. 6D to 9D will be obtained, and the inlet 1 and inlet side through hole 5a will overlap. At the same time, in the case shown in Fig. 3, there is no overlap between the outlet side through hole 6a of the second passage 6 and the second outlet 3 side, and the slave burner gradually stops operating. .

The change in gas amount in each burner during such operation is as shown in FIG. That is, the change in gas amount in the main burner is shown by line M, and that in the child burner is shown by line S, and both M and S change approximately proportionally, and furthermore, the minimum gas amount in the child burner is set by member 9. Obtained in relatively small amounts.

Note that the structure shown in FIGS. 4 and 5 differs from the structure shown in FIG. Other than that, the operation is exactly the same.

In this way, according to the present invention, the inlet 1 connected to the gas source and the first outlet 2 connected to the main burner are provided with two orthogonal phases shifted, and the first outlet 2 is located in the axial direction. In the Kotuku main body 4, which has a second outlet 3 connected to a child burner provided with a staggered position,
A rotatable closing body 7 is provided, and the closing body 7 is provided with a first passage 5 that communicates the inlet 1 and the first outlet 2, and the first passage 5 has an outlet side through hole 5b. The inlet port 1 provided in the main body 4 is made larger than the diameter of the first outlet port 2, and the inlet port 5a is opened with a phase difference slightly less than 2 perpendicular angles to the inlet side through hole 5a. The through hole 5b is connected to the inlet side through hole 5.
The structure is configured so that the communication between the inlet port 5a and the inlet port 1 is delayed, and the communication is released before the communication between the inlet side through hole 5a and the inlet port 1 is released. When the inlet 1 and the inlet side through hole 5a are connected to each other by branching from the first passage 5, the second outlet 3
Since the second passage 6 communicating with the second passage 6 and the side passage 8 communicating the first outlet 2 and the second outlet 3 are provided,
Depending on the overlap between the outlet side passage hole 5b of the first communication passage 5 and the first outlet 2, that is, the degree of closing, the main burner connected to the first outlet 2 and the child burner connected to the second outlet 3 are connected. It is possible to change the gas amount of the main burner and the gas amount of the main burner at the same time, which makes the heat distribution between the main burner and the child burner more uniform compared to those that only change the gas amount of the main burner. In addition, compared to a system in which the amount of gas reaching the first outlet 2 and the second outlet 3 is changed by the degree of closure of separate communication passages, the closing body 7 can be formed smaller, and the body 4 can be made smaller. It is sufficient to simply branch the gas passage formed in the first outlet 2 from the upstream side of the first outlet 2, which simplifies its manufacture and adjustment. Almost simultaneously with the communication and release of the first outlet 2 and the second outlet 3.
Since the fuel gas is provided at a position where the communication and release are performed, a portion of the fuel gas supplied through the second communication passage 6 is passed through the passage connecting the first outlet 2 and the second outlet 3. This has the advantage that there is no inconvenience caused by backflow.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of a conventional gas kettle, Fig. 2 is a characteristic diagram showing changes in the gas amount, Fig. 3 is a cross-sectional side view of an example of the gas kettle of the present invention, and Figs. 6 to 9 are cross-sectional views taken along the line - to - in FIG. 3, and FIG. 10 is a characteristic diagram showing changes in the gas amount. 1... Inlet, 2... First outlet, 3... Second outlet, 4... Kotoku body, 5... First passage, 6... Second passage, 7... Closing body, 8... Side passage, 9... Gas Amount adjustment member.

Claims (1)

[Scope of utility model registration request] It is equipped with an inlet 1 connected to a gas source and a first outlet 2 connected to a main burner with two orthogonal phases shifted, and a secondary burner provided axially shifted from the first outlet 2. A rotatable closing body 7 is provided in the cotuku body 4 having a second outlet 3 connected to the body, and a first passage 5 communicating between the inlet 1 and the first outlet 2 is provided in the closing body 7. The first passage 5 has its outlet side passage hole 5b opened with a phase shift of an angle slightly less than two right angles with respect to the inlet side passage hole 5a, and the inlet port 1 provided in the main body 4 1 larger than the diameter of the outlet 2, the outlet side through hole 5b is communicated with the first outlet 2 after the communication between the inlet side through hole 5a and the inlet 1, and the inlet side through hole 5a is connected with the inlet side through hole 5a. The structure is configured such that the communication is released prior to the release of the communication of the inlet 1, and the first passage 5 is provided in the closing body 7.
A second passage 6 that branches off from the inflow port 1 and communicates with the second outflow port 3 when the inflow port 1 and the inlet side through hole 5a communicate with each other.
A side passage 8 is provided which communicates the first outlet 2 and the second outlet 3, and the side passage 8 is connected to the first outlet side passage 5b.
Almost simultaneously with the communication with the outlet 2 and its release,
Provided at a position where the first outlet 2 and the second outlet 3 are communicated with each other and released therefrom, and the second outlet 3
An orifice or other gas amount adjusting member 9 is installed on the upstream side of the
A switchable gas tank that intervenes.