JPH0311558Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to a parent-child burner consisting of a parent burner and a child burner.

[Conventional technology]

In the case of conventional gas stoves equipped with a parent-child burner in which a child burner is installed in the center of the parent burner, the main burner side gas supply passage and the child burner side gas supply passage are provided separately, and the thermal power of the parent burner is adjusted. A flow rate adjustment valve and a master burner adjustment knob are provided for the master burner, and a flow rate adjustment valve and a slave burner adjustment knob are provided for adjusting the firepower of the slave burners. Thermal power was adjusted separately by adjusting the flow rates of the main burner flow rate adjustment valve and the child burner flow rate adjustment valve. That is,
Conventional parent-child burners simply consist of independent separate parent burners and child burners that are placed close to each other. In addition, the on-off valves commonly used in gas appliances are made of elastic and airtight rubber, and are normally closed when pressed against the valve seat, and are opened when in use. It was becoming like that.

[Problem that the invention attempts to solve]

Conventional parent-child burners were constructed as described above, so if you wanted to adjust the firepower of a parent-child burner, you would operate the parent burner adjustment knob and the child burner adjustment knob almost simultaneously or in succession to adjust the firepower of both burners. This makes it difficult to adjust the firepower of the parent and child burners with one hand, and the operation is cumbersome.
Adjusting the firepower of the parent and child burners was time consuming. In addition, when the gas appliance is not in use, the on-off valve is pressed against the valve seat and closed, so the on-off valve is compressed by the elastic force of the spring and remains closed for an overwhelmingly long time. There was a problem in that elasticity deteriorated, sealing performance decreased, and the life of the on-off valve was shortened.

[Means to solve the problem]

The parent-child burner of the present invention has a flow rate adjustment valve 3 that simultaneously opens and closes the parent burner side gas supply path 1 that supplies gas to the parent burner and the child burner side gas supply path 2 that supplies gas to the child burners, and adjusts the gas flow rate. Prepare,
A rubber passage opening/closing valve 5 for opening and closing the main burner side gas supply passage 1 is provided in the main burner side gas supply passage 1, and the passage opening/closing valve 5 is biased in the opening direction by the spring 24, and the switching button 6 is operated. This is characterized in that it is provided with a locking mechanism 26 which locks the flow path opening/closing valve 5 in a closed state and releases the lock when the flow rate regulating valve 3 is closed.

[Effect]

Since the present invention is constructed as described above, by adjusting the flow rate adjustment valve 3, the gas flow rate of the main burner side gas supply path 1 and the child burner side gas supply path 2 is adjusted, thereby increasing the thermal power of the main burner and the child burner. can be adjusted at the same time, making it easy to adjust the firepower of the parent and child burners. Further, when it is desired to use the burner with a simmering flame, it is possible to easily switch to the slave burner alone by simply closing the flow path opening/closing valve 5. Moreover, when the flow rate regulating valve 3 is closed and the parent and child burners are in the extinguished state, the lock mechanism 26
is released and the flow path on-off valve 5 is open, so the flow path on-off valve 5 is normally open and deterioration of the flow path on-off valve 5 can be prevented.
Further, even if the flow path opening/closing valve 5 is normally opened, the flow rate regulating valve 3 is closed, so there is no problem in terms of safety.

【Example】

As shown in FIG. 1, a gas inlet 8 is opened on the lower surface of the gas casing 7, and the gas inlet 8 passes through a cone-shaped flow rate regulating valve 3 to the main burner side gas supply path 1 and the slave burner side gas. The gas is supplied into the gas casing 7 from the gas inlet 8, and the gas branches off and flows into the main burner side gas supply path 1 and the child burner side gas supply path 2, respectively. (not shown) and a child burner (not shown). Here, the parent burner is a burner with a large calorie, and the child burner is a burner with a small calorie. For example, the parent and child burners are configured by placing the child burner in the center of the ring-shaped parent burner. There is. A horizontal hole 9 is formed horizontally from the front toward the rear at the lower part of the gas inlet 8, and a cone-shaped flow rate regulating valve 3 is rotatably built in the middle of the horizontal hole 9. Further, a magnetic valve 10 is built in the rear part of the horizontal hole 9, and a main valve seat 11 is provided around the inner circumference of the horizontal hole 9 on the flow rate regulating valve 3 side across the gas inlet 8. At the end of the slidable rod 14 of the valve 10, a main opening/closing valve 13 for closing the main valve seat 11 is provided.
0 and the main valve seat 11 constitute a safety valve 15. The magnetic valve 10 is electrically connected to a combustion detection sensor (not shown) such as a thermocouple installed near the parent-child burner, and when the combustion detection sensor detects the combustion state, the magnet valve 10 is When the on-off valve 13 is pushed open, it remains open, but if the combustion detection sensor does not detect a combustion state, the original on-off valve 13 is pushed out and the safety valve 1 is opened.
If the flame of the parent-child burner goes out, the safety valve 15 is immediately closed to prevent gas leakage. Further, an adjustment knob 4 for adjusting the firepower of the parent burner and child burner is rotatably arranged in front of the horizontal hole 9, and a shaft 1 of the adjustment knob 4 is provided in the front part of the side hole 9.
2 is inserted, and a flow rate adjustment valve 3 and an adjustment knob 4 are rotatably delivered to the middle part of the side hole part 9.
is engaged with the shaft 12 so as to rotate together. However, although the adjustment knob 4 and its shaft 12 are pivotally supported so as to be slidable back and forth, the flow rate adjustment valve 3 can only be rotated and is housed in a non-slidable manner. A slide shaft 16 is held at the center of the flow rate adjustment valve 3 so as to be slidable in the front-back direction, and both ends of the slide shaft 16 are opposed to the rear end of the shaft 12 of the adjustment knob 4 and the original on-off valve 13. . The flow rate adjustment valve 3 has one or more first through holes 20 and second through holes 21 that communicate from the inner peripheral surface to the outer peripheral surface, and a conical hole in which the flow rate adjustment valve 3 is housed. Three first communication holes 17 with different diameters are provided between the shaped inner circumferential surface 19 and the parent burner side gas supply path 1.
is perforated, and when the flow rate adjustment valve 3 is rotated, the first passage hole 20 aligns with any of the first communication holes 17, and the gas flow rate supplied to the parent burner side gas supply path 1 changes, and Three second communication holes 18 with different diameters are bored between the conical inner peripheral surface 19 and the child burner side gas supply path 2, and when the flow rate adjustment valve 3 rotates, the second communication holes 21 open. Any first communication hole 1
7, the gas flow rate supplied to the secondary burner side gas supply path 2 changes, and the adjustment knob 4 is click-stopped in four stages.As a result, the adjustment knob 4 is rotated. By doing so, the main burner: extinguish, the child burner: extinguish, the parent burner: small fire, the child burner: small fire, the parent burner: medium heat, the child burner: small fire, the main burner: large fire (fully open), the child burner: large fire (fully open). Can be adjusted to extinguishing state and three ignition states. When the parent-child burner is to be ignited from the extinguished state, the following operation is performed. When the adjustment knob 4 is pressed, the shaft 12 of the adjustment knob 4 is unlocked and the adjustment knob 4 can be rotated.At the same time, the original on-off valve 13 is pushed open via the slide shaft 16, and the gas flows into the gas inlet 8. and flows into the inner periphery of the flow rate regulating valve 3. When the adjustment knob 4 is pushed all the way to the left from this state, the main burner side gas supply path 1 and the child burner side gas supply path 2 are fully opened, and the ignition device (not shown) is discharged to ignite the parent and child burners. Ru. When the parent-child burner is ignited, it is detected by the combustion detection sensor and the magnetic valve 10 is switched to the original on-off valve 1.
3 is held in the open state, and even if the adjustment knob 4 is released, the safety valve 15 is maintained in the open state as long as the parent and child burners are burning. Furthermore, by turning the adjustment knob 4 back, the combustion state of the parent and child burners is adjusted in three stages as described above. As shown in FIG. 1, in the upper main burner side gas supply path 1 which is branched from the child burner side gas supply path 2, there is a rubber flow path opening/closing hole for opening and closing the flow path of the main burner side gas supply path 1. A valve 5 is provided. The flow path opening/closing valve 5 is fixed to a shaft rod 22 whose tip end is slidably held by a bearing hole 49, and the shaft rod 22 is slidably inserted into a packing 23 for maintaining airtightness and is inserted into the outside of the gas casing 7. It is made to stand out. A hollow switching button 6 is held in a cylindrical button holder 50 above the adjustment knob 4, and the end of the shaft 22 slides onto a spring receiving plate 51 fitted on the back of the switching button 6. It is inserted so as to be movable and is prevented from coming off by a retaining plate 48. Further, a conical coil spring-shaped spring 24 is interposed between the gas casing 7 and the spring receiving plate 51 of the switching button 6, and the switching button 6 is biased to project. In this state, the passage on-off valve 5 is opened and the valve port 2 in the main burner side gas supply passage 1 is opened.
It is designed to be separated from 5. Furthermore,
A compression spring 46 is also inserted between a collar 47 fixed to the outer periphery of the shaft rod 22 and a spring receiving plate 51.
A compression spring 46 urges the shaft rod 22 in the protruding direction. Therefore, when the switching button 6 is pushed in against the spring 24, the channel opening/closing valve 5 moves and comes into contact with the valve port 25, and when the switching button 6 is further pushed, the spring 24 and the compression spring 46 are released as shown in FIG. When the switching button 6 is pressed against this large operating force, the switching button 6 is locked and the compression spring 4 is compressed.
The flow path opening/closing valve 5 is pressed against the valve port 25 by the spring force of 6, the main burner side gas supply path 1 is closed, and the gas supply to the main burner is cut off. Therefore, if you want to use the parent and child burners with a small firepower of only the child burners, by holding the switch button 6 in the state that the main burner side gas supply path 1 is closed, only the child burners will burn. In this state, by turning the adjustment knob 4, the firepower of the slave burner can be adjusted. The compression length of the compression spring 46 is shorter than the operating stroke of the switching button 6, so when the switching button 6 is released and protruded, the flow path opening/closing valve 5 is closed by the compression spring 46. is not held and the spring 24
This ensures reliable closure. As mentioned above, the main burner can be extinguished or re-ignited by operating the switching button 6, but there is a lock mechanism that allows the switching button 6 to be held in the pressed state or to be protruded and re-ignited. 26 and a lock release mechanism 45 for releasing the lock of the lock mechanism 26 is provided between the gas casing 7, the adjustment knob 4 and the switching button 6, and has a structure as shown in FIGS. 2 to 5. have. A through hole 3 is provided at the position of the through hole 28 in the plate 27 fixed to the front surface of the gas casing 7.
A bearing tool 29 with a hole 0 is fixed,
The shaft 12 of the adjustment knob 4 is rotatably supported by a through hole 28 and a through hole 30, and a pin 31 passed through the tip of the shaft 12 is inserted from the back side of the plate 27 to both sides of the through hole 28. By fitting into the slit 32, the adjustment knob 4 is locked in the extinguishing position,
When the adjustment knob 4 is pressed, the pin 31 comes out of the slit 32 and the lock is released.
Further, a cam 33 is fixed to the shaft 12 between the plate 27 and the bearing fitting 29, and the shaft 12
When the cam 33 is rotated, the cam 33 is also rotated. Above the through hole 28 is the shaft rod 2 of the switching button 6.
A long hole-shaped opening 34 for loosely inserting the screw 3 is provided in the vicinity of the through hole 28 and the opening 34.
The key piece 36 on the upper side of the approximately L-shaped lock fitting 35 pivoted by the lock fitting 35 is arranged so as to protrude or retract from the edge of the opening 34 as the lock fitting 35 rotates. 37 and is biased in the projecting direction by a spring 38 whose both ends are hooked to the spring locking piece 39 and the bearing member 29. Furthermore, the cam sliding piece 40 of the lock fitting 35
is in sliding contact with the circumferential surface of the cam 33, and the key piece 36 is controlled to protrude or retract from the edge of the opening 34 by the action of the cam 33. On the other hand, a key groove 41 that can be fitted with the key piece 36 is cut out on the lower surface of the switching button 6. It is provided at a position where it fits with 36. Further, the edge of the opening 34 at a position facing the switching button 6 is slightly recessed so that the keyway 41 does not get caught. When the adjustment knob 4 is set to the extinguishing position, as shown in FIG.
It is retracted from the edge of 4, and the switching button 6
Even if you press it, when you release it, it will stick out as before. Therefore, when igniting from the time of extinguishing the fire, both the main burner side gas supply passage 1 and the slave burner side gas supply passage 2 are always opened to ensure ignition. After pushing and turning the adjustment knob 4 to ignite the parent-child burner, the cam sliding piece 40 comes into contact with the short diameter portion RO of the cam 33, and the key piece 36 is biased by the spring 38 to open as shown in FIG. When the switch button 6 is pushed in from this state, the key piece 36 fits into the key groove 41 of the switch button 6 as shown in FIG. The main burner side gas supply path 1 is locked, and the flow path opening/closing valve 5 of the main burner side gas supply path 1 is kept in a closed state, so that it does not return even if the switching button 6 is pulled, and only the child burner burns. In order to make the parent burner burn again, it can be done by once returning the adjustment knob 4 to its original position, extinguishing the parent burner, and then igniting the parent and child burners again from the beginning. Furthermore, by rotating the adjustment knob 4 beyond the fully open position with a slightly larger force, the master burner can be re-ignited without extinguishing the slave burner. That is, a spring hook piece 42 is provided upright on the edge of the cam 33, and a stopper spring 43 is attached to the position that the spring hook piece 42 reaches when the adjustment knob 4 of the plate 27 is rotated to the ignition position. The end of the stopper spring 43 is held by a locking piece 44, and when the adjusting knob 4 is rotated to the ignition position, the spring hooking piece 42 hits the stopper spring 43, creating resistance and stopping the adjusting knob 4. but,
After pressing the switching button 6 once to lock it, rotate the adjustment knob 4 in the fully open direction, and then
2 hits the stopper spring 43, if the adjustment knob 4 is further turned against the elastic force of the stopper spring 43, the stopper spring 43 is bent and the adjustment knob 4 can be rotated, as shown in FIG. The cam sliding piece 40 is pushed by the long diameter portion C of the cam 33 and rotates, and the key piece 36 comes out of the key groove 41 of the switching button 6 and retracts from the edge of the opening 34, and the switching button 6 is moved by the spring 24. The flow path opening/closing valve 5 is opened by being protruded by the elastic force of
Gas is discharged from the main burner and the flame of the child burner ignites the main burner.

[Effect of the idea]

As described above, the present invention integrally forms the parent burner side gas supply path that supplies gas to the parent burner and the child burner side gas supply path that supplies gas to the child burners.
A flow rate adjustment valve that simultaneously adjusts the gas flow rate of each of both gas supply channels is provided, and a flow path opening/closing valve that opens and closes the main burner side gas supply channel is provided in the main burner side gas supply channel,
Since the flow path opening/closing valve and the flow rate adjustment valve are arranged above and below, by adjusting the flow rate adjustment valve, the gas flow rate of the main burner side gas supply path and the child burner side gas supply path is adjusted, and the main burner side gas supply path is adjusted. The flame power and the flame power of the child burner can be adjusted at the same time, making it easy to adjust the flame power of the parent and child burners.Also, if you want to use it with a simmering flame, you can easily switch to the child burner alone by simply closing the flow path opening/closing valve. It is something. That is,
There is an advantage that it is possible to improve the operability of adjusting the firepower of the parent and child burners and extinguishing and re-igniting the parent burners. Moreover, when the parent and child burners are in the extinguished state, the lock mechanism is released and the passage opening/closing valve 5 is opened, so the passage opening/closing valve 5 is normally open and the rubber of the passage opening/closing valve 5 is opened. It is possible to prevent deterioration of the flow path opening/closing valve and extend the life of the flow path opening/closing valve.Also, since the flow regulating valve is normally closed even when the flow path opening/closing valve is open, it is also a safety issue. do not have.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
The figures are exploded perspective views of the same as above, Figures 3, 4 and 5.
The figure is an explanatory view of the same operation as above, and FIG. 6 is a cross-sectional view of the switching button or flow path opening/closing valve in a state where the switching button is pressed in. 1... Main burner side gas supply path, 2... Child burner side gas supply path, 3... Flow rate adjustment valve, 5... Channel opening/closing valve, 6... Switching button, 24... Spring, 26... Lock mechanism.

Claims (1)

[Scope of utility model registration request] The main burner side gas supply path is equipped with a flow rate adjustment valve that simultaneously opens and closes the main burner side gas supply path that supplies gas to the main burner and the child burner side gas supply path that supplies gas to the child burners, and adjusts the gas flow rate. A rubber passage opening/closing valve that opens and closes is provided in the main burner side gas supply passage, a spring urges the passage opening/closing valve in the opening direction, and the passage opening/closing valve is locked in the closed state by operating a switching button. A parent-child burner equipped with a lock mechanism that is unlocked when the flow rate adjustment valve is closed.