JPH034872Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an appliance plug for a gas appliance, and more particularly to an appliance tap for a gas appliance that is provided with a mechanism for locking a gas flow path in an open position.

[Conventional technology]

In gas appliances, the conventional methods of locking the gas flow path in the open position include those that lock by rotating the operating body clockwise or counterclockwise, and those that lock the gas flow path in the open position. There are well-known devices that lock the device by pressing two operation buttons.

[Problems with conventional technology]

However, each of the conventional locking mechanisms mentioned above has a structure in which the engaging part of the locking mechanism is disposed on the front side of the appliance stopper, which increases the depth of the gas appliance. However, as gas appliances have become larger, the locking mechanisms have also become more complex, resulting in lower durability and higher costs.

This invention was devised in view of the current situation, and its purpose is to dispose the engaging part of the locking mechanism of the gas appliance below or on the side of the appliance plug. To provide a gas appliance appliance tap at a low price, which can reduce the depth dimension of the appliance tap, reduce the number of parts of the appliance tap, and simplify and downsize the locking mechanism.

[Means for solving problems]

In order to achieve the above-mentioned object, in this invention, a gas flow path is opened and closed by pressing an operation button, and the gas flow path is locked in an open state after gas ignition. In the device stopper of the device, the locking mechanism of the device stopper includes a pressing body that slides when the operation button is pressed, and a lock that engages with an engagement hole formed in the pressing body at a gas flow path opening position. and an elastic member that normally biases the locking body in the engaging direction, and the engaging portion of the locking mechanism is disposed below or to the side of the body of the device stopper. That is.

[Effect]

Therefore, in the device stopper for gas appliances according to this invention, when the operation button is activated to ignite, the pressing body slides and the locking body, which is urged in the engagement direction by the elastic member, locks the device stopper. It is configured to engage with the engagement hole of the pressing body below or on the side of the body.

〔Example〕

This invention will be described in detail below based on an embodiment shown in the accompanying drawings.

The appliance stopper K for a gas appliance according to this embodiment includes an operation button 10 for opening and closing a gas flow path A, a body 20 in which the gas flow path A is formed, and an operation button 10 disposed inside the body 20. Gas flow path A
and a lock mechanism 30 that holds the lock in the open state.

As shown in FIGS. 1 to 3, the operation button 10 includes a metal support 11 and a synthetic resin main body 1 fixed to the surface of the support 11 with screws.
It consists of 5 and.

The support body 11 has an upper piece 12 and a lower piece 1 whose upper and lower ends are bent at right angles in the same direction.
3 is formed.

The main body 15 also includes a decorative surface portion 16 having a generally dogleg-shaped vertical section, with an upper half portion 16a forming a pressure surface for extinguishing, and a lower half portion 16b forming a pressure surface for ignition.
a support piece 17 extending on the back surface of the decorative surface portion 16;
17, and the support pieces 17, 17
are fitted and locked with the legs 14, 14 of the support body 11, and the main body 15 and the support body 11 are connected and fixed by screws or the like not shown.

The operation button 10 configured in this way is pivotally supported for seesaw rotation via a horizontal shaft 1 attached to flanges 61, 61 of a support 60 to be described later, and the operation button 10 is 1 is normally biased clockwise (unlocking direction x) in FIG. 1 by a wound spring (not shown).

On the other hand, the body 20 disposed on the rear side of the appliance stopper K communicates with a valve chamber 21 that holds a passage opening/closing rod 31 so as to be movable in the horizontal direction, and is in communication with the valve chamber 21, and is connected to a solenoid valve 33. Solenoid valve chamber 22 that accommodates
and a gas inflow path 23 communicating with the solenoid valve chamber 22.
, a vertical passage 24 communicating with the operation button side small chamber 21a of the valve chamber 21, a horizontal passage 25 communicating with the upper end of the vertical passage 24, and a gas outlet passage 26 communicating with the horizontal passage 25. It is composed of and,
The gas flow path A is gas inflow path 23→electromagnetic valve chamber 2
2→valve chamber 21→operation button side small chamber 21a→vertical channel 24→horizontal channel 25→gas outlet channel 26.

The lock mechanism 30 includes a substantially L-shaped pressing body 38 that presses the flow path opening/closing rod 31 and the pilot burner rod 32, a lock body 39 that holds the pressing body 38 in the gas flow path open state, and the pressing body 39. 38
and a plate spring 74 that biases the lock body 39 in the direction of engaging the lock body 39 with the engagement hole 50 of the pressing body 38.

The passage opening/closing rod 31 has one end connected to the valve chamber 21.
It is held by a support body 40 disposed inside the front panel, with its other end exposed outside the front panel, and is set to be movable forward and backward along its axial direction. Further, a rubber gasket 41 having a diameter larger than the opening diameter of the operation button side small chamber 21a is fixed to the middle part of the channel opening/closing rod 31, and the rubber gasket 41 is held by a metal presser body 43 having an inclined surface 42. It is supported and fixed. Therefore, the spring 35 is interposed between the support body 40 and the presser body 43.

The pilot burner rod 32 is arranged parallel to the passage opening/closing rod 31, with one end facing into the valve chamber 21 and the other end exposed outside the appliance plug. It is set so that it can move forward and backward along its axial direction. Further, a rubber gasket 45 is fixed to the middle part of the pilot burner rod 32, and the rubber gasket 45 connects to the operation button side small chamber 2 in which a flow path 44 communicating with the pilot burner is formed.
It is formed to have a larger diameter than the opening diameter of 1b. Note that the spring 36 is connected to the rubber gasket 45 and the valve chamber 21.
It is interposed between the protrusion 21c and the protrusion 21c.

The electromagnetic valve 33 holds the rod 34 in a suction state by the thermoelectromotive force from the thermocouple 46, and a rubber packing 47 is fixed to the tip of the rod 34. This rubber gasket 4
7 is formed to have a larger diameter than the opening diameter of the flow path 48 that communicates the valve chamber 21 and the electromagnetic valve chamber 22.

The pressing body 38 includes a surface portion 38a that presses the flow path opening/closing rod 31 in the gas flow path opening direction v, a surface portion 38b that presses the pilot burner rod 32 in the gas flow path opening direction v, and the lock body 39.
and a horizontal surface portion 38c having a hole 50 in which the locking piece portion 39c locks.
b is recessed toward the operation button side from the surface portion 38a. This allows the timing of gas supply to the gas burner to be controlled by the flow path opening/closing rod 31.
This is to delay the opening timing of the still,
Reference numeral 51 in the figure is a hole formed in the horizontal surface portion 38c into which the slide body 52 is fitted.

In particular, the slide body 52, as shown in FIG.
It is formed into a substantially C-shape, and a locking protrusion 54 is protruded from the front end of a horizontal surface portion 53, and upper pieces 55, 56 are bent inward.

The distance d ₁ between the tips of the upper pieces 55 and 56 is smaller than the distance D ₁ between the holes 50 and 51 of the pressing body 38 (d ₁ <D ₁ ).
The tips of each of the holes 50 and 51 are always engaged with the peripheral edges of the holes 50 and 51.

Further, the horizontal surface portion 53 of the slide body 52 is
Its length d ₂ is shorter than the hole axis spacing D ₂ of the holes 50 and 51 of the pressing body 38 (D ₂ > d ₂ ), so the slide body 52 slightly slides in the horizontal direction. installed to do so. This sliding amount is the amount by which the rod 34 of the solenoid valve 33, which is pressed by the passage opening/closing rod 31, is locked in the combustion position immediately before it is pushed all the way.

The pressing body 38 configured in this manner is inserted into a support 60 formed in an L shape and attached to the front panel.

The support 60 includes a vertical wall portion 62 on which flanges 61, 61 are formed to which the horizontal shaft 1 is attached, a horizontal surface portion 63 bent in the horizontal direction from the lower end of the vertical wall portion 62, and a horizontal surface portion 63 that is bent in the horizontal direction from the lower end of the vertical wall portion 62. 63, and a rising wall portion 64 bent upward from the tip of the vertical wall portion 63, and a horizontal surface portion 38c of the pressing body 38 is slidable below the vertical wall portion 62 and on the rising wall portion 64. Support holes 65, 65 for fitting and holding are provided, respectively.

The pressing body 38 mounted on the support 60 in this manner is normally urged toward the operation button by the spring 66. In addition, the reference numeral 67 in the figure
is a hole formed in the horizontal surface portion 63 of the support 60 into which the locking piece 39c of the lock body 39 is inserted.

The lock body 39 is formed in a substantially J-shape,
The vertical surface portion 70 has long grooves 71 and 72 into which the passage opening/closing rod 31, the pilot burner rod 32, and the pressing body 38 are loosely fitted, and the upper end portion 73 of the vertical surface portion 70 is located on the operation button side. It is bent into a shape. The locking piece 39c, which is bent from the lower end of the vertical surface portion 70 toward the body, is inserted into the hole 67 of the support 60 and engages with the engagement hole 50 of the pressing body 38 at a predetermined position. The distal end of the locking piece 39c is engaged with the bottom of the support 60 by the biasing force of the other end of a plate spring 74, one end of which is screwed and fixed to the bottom of the support 60. , is set so as to come into elastic contact with the lower surface of the pressing body 38 and lift it up under normal conditions.

The reference numeral 80 in the figure is a gas flow rate control valve disposed in the vertical flow path 24.
0, the valve element 82 is moved up and down by rotating the tuna control lever 81, so that the opening degree of the vertical flow path 24 can be adjusted.

Further, reference numeral 90 in the figure indicates a bypass valve disposed in a bypass passage 91 opened so that the valve chamber 21 and the horizontal flow passage 25 communicate with each other. , a spring 93 that urges the rubber packing 92 in the direction of closing the bypass flow path, and a rod 94 attached to the rubber packing 92. The lower end of the rod 94 is formed in a hemispherical shape. There is.

Therefore, when the appliance stopper K is set in the low-fire state and the ignition operation is performed in this state, the rod 94 is a metal presser body that moves by the gas flow path opening operation of the flow path opening/closing rod 31. The rubber gasket 92 comes into contact with the inclined surface 42 of the valve chamber 21 and rises, thereby pushing up the rubber gasket 92 against the urging force of the spring 93, so that the gas in the valve chamber 21 is
The gas flows directly from the bypass path 91 into the gas outlet path 26, and as a result, the ignition operation can be performed smoothly.

Note that the symbol P in the figure is a rubber gasket that prevents gas leakage.

Next, the operation of the device stopper K configured as described above will be explained.

First, when igniting the gas burner, the lower half 16b of the operation button 10 is pressed in the ignition direction y.

As a result, the operation button 10 rotates counterclockwise in FIG.
is pressed, and the pressing body 38 slides in the ignition direction.

By this sliding of the pressing body 38, the flow path opening/closing rod 31 is first pressed in the gas flow path opening direction v, whereby the rubber packing 41 opens the valve chamber 21, and the tip of the flow path opening/closing rod 31 is pressed. Since the rod 34 of the solenoid valve 33 is pressed to open the solenoid valve chamber 22, the gas flow path A is as follows: gas inflow path 23 → solenoid valve chamber 22 → valve chamber 21 → operation button side small chamber 21a → vertical flow path 24 → horizontal The flow path 25 and the gas outlet path 26 are set in a communicating state.

On the other hand, a little later than the slide operation of the passage opening/closing rod 31, the pilot burner rod 3
2 is pressed by the pressing body 38, thereby causing the rubber seal 45 to open the valve chamber 21, so that the gas in the valve chamber 21 flows into the flow path 44 communicating with the pilot burner.

Further, as the passage opening/closing rod 31 and the pilot burner rod 32 slide, the lock body 39 operates as shown in FIGS. 5A to 5E.

That is, when the pressing body 38 starts sliding from the extinguished state shown in FIG. 5A, the locking piece 39c of the locking body 39 is biased upward by the leaf spring 74, as shown in FIG. 5B. The slide body 52 collides with the locking protrusion 54 of the slide body 52 and moves toward the operation button side w of the slide body 52, and the slide body 52 collides with the front edge of the hole 51 formed in the pressing body 38. Then, the movement is stopped.

When the pressing body 38 further slides from this state, the locking piece 39c of the locking body 39 climbs over the locking protrusion 54, as shown in FIG. 5C. As a result, the locking piece 39c does not engage with the hole 50 even after passing the lock position.

After this, as shown in FIG. 5D, the locking piece 39
c is raised by the biasing force of the leaf spring 74 and engages with the peripheral edge of the hole 51 of the pressing body 38, as shown in FIG. 5E, thereby locking the gas flow path A in the open state. .

Therefore, the solenoid valve 33 by the passage opening/closing rod 31
Since the pressing force is locked just before the rod 34 of the solenoid valve 33 is pushed completely, breakage of the solenoid valve 33 due to the pressing force is effectively prevented and its durability is improved.

Note that the opening state of the solenoid valve chamber 22 by the solenoid valve 33 is such that after the movement of the passage opening/closing rod 31 is locked, while the gas burner is in the combustion state and the heat from the thermocouple 46 is being supplied. Retained. .

Next, when extinguishing a fire, press the operation button 1.
0 in the lock release direction x.

As a result, the operation button 10 rotates clockwise in FIG.
As a result, the lock body 39 is pushed downward.

By sliding the lock body 39 downward, the engagement state between the press body 38 and the locking piece 39c is released, and the press body 38 moves back in the w direction by the biasing force of the spring 66, and is horizontally moved. It collides with shaft 1 and stops. The return movement of the pressing body 38 opens the passage opening/closing rod 31 and the pilot burner rod 32.
is moved in the w direction by the urging force of the springs 35 and 36, the valve chamber 21 is set to the closed state by the rubber packings 41 and 45, and the bypass passage 91 is closed by the rubber packings 92. Set to closed state. At this time, the open state of the solenoid valve chamber 22 by the solenoid valve 33 remains maintained.

In this way, when the valve chamber 21 is set to the closed state, the gas supply is cut off, so that heat transfer to the thermocouple 46 due to combustion is eliminated.
Therefore, the solenoid valve 33 is turned off, and the rubber gasket 47 closes the flow path 4 due to the biasing force of the spring 37.
8, and the solenoid valve chamber 22 is set in the closed state.

Although the above embodiment has been described using an example in which the surface portion 38a and the surface portion 38b of the pressing body 38 are configured to be offset, the present invention is not limited to this, and the same structure can be used. Of course, it may be configured to be flat.

[Effect of idea]

As explained above, according to this invention, when the operation button is ignited, the pressing body slides, and the locking body, which is biased in the engagement direction by the elastic member, is placed under the body of the appliance stopper or Since it is configured to engage with the engagement hole of the pressing body on the side, and the engagement part of the lock mechanism is arranged below or on the side of the appliance stopper, the depth dimension of the gas appliance can be reduced. Since it can be made smaller and the number of parts of the appliance stopper can be reduced, the locking mechanism itself can be simplified and miniaturized, and as a result, the cost of this type of appliance stopper can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing the configuration of a device stopper according to an embodiment of this invention, Fig. 2 is a cross-sectional view showing the gas flow path opening operation state of the device stopper, and Fig. 3 is a cross-sectional view showing the gas flow path of the device stopper. FIG. 4 is an exploded perspective view showing the structure of the pushing body, slide body, and support of the device stopper; FIGS. 5 A to E show the relationship between the sliding state of the pushing body and the locking body. FIG. 3 is an explanatory diagram showing a matching state. Explanation of symbols, A...Gas flow path, K...Appliance plug,
10... Operation button, 38... Pressing body, 39...
Lock body, 50...engaging hole, 74...plate spring.

Claims (1)

[Scope of utility model registration request] In a device plug for a gas appliance configured to open and close a gas flow path by pressing an operation button and lock the gas flow path in an open state after gas ignition, the locking mechanism of the device plug is configured. , a pressing body that slides when the operation button is pressed; a locking body that engages with an engagement hole formed in the pressing body at the gas flow path opening position; and a locking body that is normally moved in the engagement direction. An appliance stopper for a gas appliance, characterized in that the engaging part of the locking mechanism is disposed below or on the side of the body of the appliance stopper.