CN113028081A

CN113028081A - Control valve structure of gas stove

Info

Publication number: CN113028081A
Application number: CN202110485540.3A
Authority: CN
Inventors: 林君辉
Original assignee: Wenling Huazhe Electrical Appliance Technology Co ltd
Current assignee: Lin Keyu
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-06-25

Abstract

The invention provides a control valve structure of a gas stove, and belongs to the technical field of machinery. It has solved the problem that there is the potential safety hazard in current control valve structure. This control valve structure of gas-cooker, including the valve body that has air inlet and gas outlet, be used for controlling the air inlet and the mutual intercommunication of gas outlet or the press switch of disconnection of gas outlet, and have the control switch of ignition function, control switch sets up in air inlet department and can control the air inlet switching, and can ignite the gas of carrying to gas-cooker furnace end department when control switch opens the air inlet, still have the ignition gas port that communicates with the air inlet on the valve body, the ignition gas port is located between control switch and the press switch. After the control switch opens the air inlet, the gas that the ignition gas mouth department was carried can form normal naked light kind, and when follow-up switch fire operation was carried out through press switch, control switch all no longer participated in the ignition, has reduced the possibility that control switch ignition sensitivity reduces, guarantees that the ignition can both succeed at every turn, has eliminated the potential safety hazard.

Description

Control valve structure of gas stove

Technical Field

The invention belongs to the technical field of machinery, and relates to a control valve structure of a gas stove.

Background

The gas stove is a kitchen utensil which is heated by direct fire with gas fuel such as liquefied petroleum gas, artificial gas, natural gas and the like. At present, the kitchens of hotels and restaurants are all in the structure of gas cookers, and the gas cookers are all provided with a control valve structure which is used for being connected with a gas bottle or a gas pipeline to control the opening and closing of the gas cookers. In the cooking process, after a dish is cooked, in order to avoid resource waste, the fire of the gas stove needs to be turned off firstly through the control valve structure, namely the gas stove is turned off, and a cook basically controls a pot with one hand and a ladle with the other hand, so that in the conventional control valve structure, a switch button for controlling the fire is in a knee-top type for operation.

As disclosed in the chinese patent application No. 201520955614.5 filed in 2015 by the present applicant, the switch structure of a gas stove comprises a valve core, a pressing rod, a pressing switch and a valve body having an air inlet and an air outlet, wherein the valve body is internally provided with an air inlet channel and an air outlet channel which are communicated with each other, the air inlet is communicated with the air inlet channel, the air outlet is communicated with the air outlet channel, a leaning step is formed between the air inlet channel and the air outlet channel in the valve body, the pressing switch is a labyrinth switch and fixed on the valve body, an expansion link of the pressing switch extends into the air inlet channel and is fixed with the valve core, the valve core can lean against the leaning step to separate the air inlet channel from the air outlet channel, the outer end of the pressing rod is fixed with a pressing disc, the inner end of the pressing rod extends into the air inlet channel and leans against the valve core and can push the expansion link of the, the pressing rod is fixed with a touch block which can touch a touch piece of a touch switch, the touch switch is used for igniting gas conveyed from the gas outlet, and the principle of the touch switch is similar to that of an ignition switch of an existing pressing type lighter.

During the culinary art, the cook only need push up the pressure dish with the knee, pushes up the telescopic link that the case promoted push type switch and removes and lock according to the inside removal of pressing rod, with inlet channel and the passageway intercommunication of giving vent to anger, the furnace end department of gas-cooker is carried in the gas outlet to the gas, meanwhile, can touch the contact according to the inside removal of pressing rod and make touch switch carry the gas of furnace end department to the gas outlet and ignite, the gas-cooker is opened and is got into the state of firing. After a dish is cooked, a cook only needs to push the pressing disc with the knee, the pressing rod pushes the telescopic rod to move to realize unlocking, the valve core returns to separate the air inlet channel from the air outlet channel, the gas stops conveying, and the gas stove is closed to realize fire shutoff. And repeating the operation in sequence to realize the switching of the opening and the closing of the gas stove.

Although the switch structure can conveniently switch the gas stove on and off through the knee-top operation, the switch of the switch fire needs to be switched once when one dish is cooked, so that the ignition switch needs to be ignited once, and a hotel and a restaurant have thousands or even tens of thousands of dishes to be cooked every day, so that the sensitivity of the touch switch is reduced due to frequent operation, and sometimes the ignition can be realized only by operating for many times (similar to the state of the ignition switch of a lighter after being used for a long time), namely, the ignition switch does not catch fire once, the pressure plate is pressed by the knee-top, the operation of switching the fire once is carried out again, the ignition is carried out for the second time, and the operation is repeated until the ignition is successful, so that the working efficiency is reduced. And touch switch's is through pressing the lever to control, consequently, touch switch once igniteing, and the gas outlet just transports a gas towards the furnace end department of gas-cooker, can save a large amount of gas in furnace end department after many times, even the ignition is successful this moment, also can lead to the flame of furnace end department to scurry out a sound of popping, has very big potential safety hazard.

In order to avoid the above safety hazards, the following conventional methods are mainly used: 1. a new touch switch is replaced, but the frequency of replacement is too high, resulting in higher costs. 2. After the ignition is unsuccessful once, the ignition is manually carried out through open fire, and the ignition mode still has certain potential safety hazard and greatly reduces the working efficiency.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a control valve structure of a gas stove, which aims to solve the technical problems that: how to eliminate the potential safety hazard that current control valve structure exists.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a control valve structure of gas-cooker, is including the valve body that has air inlet and gas outlet and set up the push switch who is used for controlling air inlet and gas outlet intercommunication or disconnection each other on the valve body, its characterized in that, this control valve structure is still including the control switch who has the function of lighting a fire, control switch sets up in air inlet department and can control the air inlet switching, just can light the gas of carrying to gas-cooker furnace end department when control switch opens the air inlet, still have on the valve body with the ignition gas port of air inlet intercommunication, the ignition gas port is located between control switch and the push switch.

In the control valve structure of the gas stove, the ignition gas port and the gas outlet are both used for communicating with the furnace end of the gas stove, and the gas outlet quantity of the ignition gas port is much smaller than that of the gas outlet. When cooking is needed, a cook operates the control switch to open the air inlet, at the moment, the press switch is in a closed state, and gas enters the valve body from the air inlet and flows to the ignition air port. The gas inlet is opened by the control switch, meanwhile, the gas delivered to the furnace end from the ignition gas port can be ignited, a strand of fire for ignition is formed at the furnace end, the gas stove is opened and is in a fire-off state, and after ignition, the fire formed at the ignition gas port is normally open fire as long as the control switch is not closed. The cook again the knee top push down press the switch make gas outlet and air inlet intercommunication, and the gas outlet carries the gas to furnace end department and ignites through foretell kindling, and the gas-cooker gets into the state of firing, can cook. When the fire head is too violent in the cooking process, or the seasoning needs to be taken, or the fire needs to be turned off after cooking, a cook only needs to push the switch with the knee to disconnect the gas outlet and the gas inlet, the gas outlet stops conveying gas into the furnace end, the big fire at the furnace end is extinguished, only the fire species ignited by the gas conveyed by the ignition gas port is left, and the gas stove enters the fire-off state. When a next dish needs to be cooked, a cook only needs to push the switch with the knees to enable the gas outlet to be communicated with the gas inlet, the gas outlet conveys gas to the furnace end and is ignited through the kindling, the gas stove enters the ignition state again, cooking can be conducted, and sequential circular operation is conducted. When all cooking work is finished, the air inlet and the air outlet are disconnected by pressing the switch, the air inlet is closed by the control switch, and the gas stove enters a closed state.

In conventional wisdom, the switching fire of a gas range opens the gas range into a fired state or closes the gas range into a shut-off state. The control valve structure of the gas stove overcomes the conventional understanding of the gas stove on-off fire, and forms three states, namely an open state and a fire-off state, an open state and a fire-on state, and a closed state. Therefore, when one dish is cooked and the next dish is changed, the gas stove is controlled to switch the on-off state only by pressing the switch, so that the waste of gas idle burning is avoided, the control switch does not participate in ignition work any more, and the gas conveyed by the ignition gas port always forms a normally open fire type at the stove head for ignition. That is to say, after the gas-cooker was opened, no matter carry out the switch fire several times, control switch only need carry out once ignition work can, not only very big reduction control switch ignition sensitivity reduce the possibility, can also guarantee that the ignition can both succeed at every turn, eliminated the potential safety hazard, also improved cook's work efficiency. In addition, because the ignition switch is required to be ignited once every time the fire is switched on and off, a cook generally does not choose to switch off the fire when the fire head is too violent or the seasoning needs to be taken in the cooking process, but takes the pot away from the fire. The control valve structure forms a normal open fire type, so that the fire is more convenient to open and close, and a cook can also close the fire when meeting the above conditions, thereby further reducing the waste of fuel gas.

In the control valve structure of the gas stove, the valve body comprises a gas inlet pipe section, a gas outlet pipe section, a connecting pipe section and an ignition pipe section which are all tubular, a port at one end of the gas inlet pipe section is the gas inlet, a port at one end of the gas outlet pipe section is the gas outlet, the other end of the gas inlet pipe section and the other end of the gas outlet pipe section are both connected to the side wall of the connecting pipe section, the press switch is arranged on the connecting pipe section, one end of the ignition pipe section is connected to the side wall of the gas inlet pipe section, and a port at the other end of the ignition pipe section is the ignition. The ignition pipeline section is connected on the lateral wall of the air inlet pipeline section, namely, the ignition air port is positioned between the communicating parts of the air inlet and the air inlet pipeline section connecting pipeline section, after the control switch is turned on, the control switch can drive the fuel gas conveyed by the ignition switch at the multi-point fire air port to be ignited to form a normally open fire for ignition, when the switch fire is subsequently switched through the press switch, the control switch does not participate in the ignition work any more, the possibility of reducing the ignition sensitivity of the control switch greatly is reduced, the ignition can be ensured to be successful at every time, the potential safety hazard is eliminated, the work efficiency of a chef is also improved, and meanwhile, the service life of the ignition switch is also prolonged.

In the control valve structure of the gas stove, the gas inlet pipe section and the gas outlet pipe section are arranged in parallel and are respectively positioned at two sides of the connecting pipe section, a step surface is arranged in the connecting pipe section, the step surface is positioned between the communication position of the gas inlet pipe section and the connecting pipe section and the communication position of the gas outlet pipe section and the connecting pipe section, and a valve core of the press switch can abut against the step surface to separate the gas inlet from the gas outlet. The valve core of the press switch is controlled to be far away from or abut against the step surface to achieve communication or partition of the air inlet and the air outlet, the air inlet pipe section and the air outlet pipe section are arranged in parallel and are respectively located on two sides of the connecting pipe section, so that the path of gas entering from the air inlet and being output from the air outlet is Z-shaped, and the smoothness of gas circulation can be guaranteed.

In the above control valve structure of the gas range, the ignition pipe section is connected to a side wall of a middle portion of the gas inlet pipe section. The ignition pipe section is located the pipeline section middle part that admits air, and the gas that the ignition gas port was carried can form the normal naked light kind, does not receive press switch's control, very big reduction the control switch possibility of ignition sensitivity reduction, can also guarantee to ignite at every turn and can both succeed, eliminated the potential safety hazard, also improved cook's work efficiency, prolonged ignition switch's life. Meanwhile, the ignition pipe section is relatively far away from the air inlet and the air outlet, and the air inlet and the air outlet cannot be influenced by fluctuation caused by ignition of the fuel gas conveyed by the ignition air port.

In the control valve structure of the gas stove, the valve body is also provided with an adjusting piece for adjusting the gas output of the ignition pipe section. The gas has different kinds such as coal gas and natural gas, and its combustion efficiency of different kinds of gas is also different, and under the same combustion efficiency promptly, the required volume of different kinds of gas is also different, through the setting of regulating part, can adjust the air output size of ignition pipe section department to can adapt to different kinds of gas, what guarantee that ignition port department formed is a strand of kindling who is used for the ignition all the time, and can not produce great flame, avoid the waste of resource. Meanwhile, when the push switch is controlled to be communicated with the air inlet and the air outlet, the explosion caused by the larger flame conveyed and generated at the ignition port is further eliminated.

In the control valve structure of the gas stove, the valve body further comprises a tubular adjusting pipe section, the adjusting pipe section and the ignition pipe section are respectively connected to two sides of the gas inlet pipe section, the adjusting piece is rod-shaped, the adjusting piece is in threaded connection with the inside of the adjusting pipe section, and one end of the adjusting piece extends into the gas inlet pipe section and is opposite to a port of the ignition pipe section. The distance between the adjusting piece and the port of the ignition pipe section can be adjusted by controlling the length of the adjusting piece extending into the air inlet pipe section, so that the effect of adjusting the flow of the gas entering the ignition pipe section is achieved, and the gas-burning device can adapt to different types of gas.

Preferably, in the above control valve structure of a gas range, the adjusting pipe section and the ignition pipe section are coaxially arranged, an inner diameter of a communication part of the ignition pipe section and the gas inlet pipe section is smaller than an inner diameter of the ignition gas port, and an inner diameter of a communication part of the ignition pipe section and the gas inlet pipe section is smaller than an outer diameter of the adjusting member. Through the setting, the flow rate of gas after entering the ignition pipe section is reduced, the gas flow rate is prevented from being too high, flame injection is caused in the ignition process, and the safety is further ensured.

In the control valve structure of the gas stove, the valve body is also provided with an adjusting piece for adjusting the air outlet quantity at the air outlet. The gas has different kinds such as coal gas and natural gas, and its combustion efficiency of different kinds of gas is also different, and under the same combustion efficiency promptly, the required volume of different kinds of gas is also different, can adjust the gas output size of gas outlet department through the adjusting part to can adapt to different kinds of gas, guarantee at the culinary art in-process, the flame size in the furnace end is suitable, avoids the too big or undersize taste of the dish of influence culinary art of flame.

In the control valve structure of the gas stove, the valve body further comprises an adjusting pipe section, the adjusting pipe section is connected to one side wall of the gas outlet pipe section, the adjusting piece is in a rod shape, the adjusting piece is in threaded connection with the adjusting pipe section, and one end of the adjusting piece extends into the gas outlet pipe section. The adjusting piece is rotated to control the length of the adjusting piece extending into the gas outlet pipe section so as to adjust the gas flow in the gas outlet pipe section, so that the effect of the gas outlet amount at the gas outlet is achieved, and the adjusting piece can adapt to different types of gas.

In the above control valve structure of the gas stove, the inner diameter of the ignition gas port is smaller than the inner diameter of the gas outlet, and the inner diameter of the ignition gas port is smaller than the inner diameter of the gas inlet. The ignition port has an inner diameter that is much smaller than the inner diameters of the inlet and outlet ports so that the gas energy delivered by the ignition port can only form a small normally open flame for ignition, and the waste of the gas energy by the normally open flame is almost negligible.

In the control valve structure of the gas stove, the control switch comprises a ball valve and an ignition switch, the ball valve comprises a valve seat, a control handle and a ball core with a vent passage, the valve seat is connected to the end part of one end, provided with an air inlet, of the air inlet pipe section, the ball core is arranged in the valve seat, the control handle is connected with the ball core and can control the ball core to rotate in the valve seat so that the vent passage is communicated with the air inlet or staggered with the air inlet, the ignition switch is fixed on the valve seat or the air inlet pipe section, and an ignition contact of the ignition switch is linked with the control handle. The rotary control handle can drive the valve core of the ball valve to rotate, so that the air inlet is opened or closed, the ignition contact piece of the ignition switch is linked with the control handle to realize ignition, the ignition switch is not controlled by the press switch, the possibility of reduction of the sensitivity of the ignition switch is reduced, the ignition can be successfully realized at every time, the potential safety hazard is eliminated, the working efficiency of a cook is also improved, and the service life of the ignition switch is prolonged.

Compared with the prior art, the control valve structure of the gas stove has the following advantages:

1. this control valve structure of gas-cooker opens the back with the air inlet at the ball valve, can drive ignition switch and ignite the gas formation kindling that the gas of gas port carried to furnace end department, ignition switch's action and the break-make of ignition gas port all receive the ball valve control, as long as the ball valve is opened, the kindling of formation is exactly a normal open flame, follow-up when carrying out the operation of switch fire through press switch, ignition switch all does not participate in again, not only very big reduction the possibility that ignition switch sensitivity reduces, can also guarantee that it can succeed to ignite at every turn, the potential safety hazard has been eliminated, cook's work efficiency has also been improved, the life of ignition switch has also been prolonged simultaneously.

2. The regulating part and the regulating part can respectively regulate the air output of the ignition pipe section and the air inlet pipe section, so that the gas-burning stove can adapt to different types of fuel gas.

Drawings

Fig. 1 is a perspective view of a control valve structure of the gas range.

Fig. 2 is a sectional view showing a fire-off state of the control valve structure of the gas range.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is an enlarged view at B in fig. 2.

Fig. 5 is a sectional view showing a state in which the control valve structure of the gas range is fired.

Fig. 6 is a perspective view of the switch knob.

Fig. 7 is a sectional view of the switch knob.

Fig. 8 is a perspective view of the control handle.

In the figure, 1, a plug; 2. a valve body; 2a, an air inlet pipe section; 2a1, air inlet; 2b, an air outlet pipe section; 2b1, air outlet; 2c, an ignition tube section; 2c1, ignition port; 2d, connecting the pipe sections; 2d1, step surface; 2e, adjusting the pipe section; 2f, adjusting the pipe section; 2g, fixing holes; 3. a control switch; 31. an ignition switch; 31a, an ignition contact; 32. a ball valve; 3a, a ball core; 3a1, airway; 3b, a control handle; 3b1, bumps; 3c, valve seats; 4. a push switch; 4a, a pressing rod; 4b, a valve core; 4c, a switch button; 4c1, cylinder; 4c2, a telescopic body; 4c21, a chute; 4c22, labyrinth lock grooves; 4c3, sliding piece; 4c4, lock lever; 4c5, return spring; 4d, pressing the disc; 5. an adjustment member; 6. an adjustment member; 7. a pipe joint.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 8, the control valve structure of the gas cooker comprises an adjusting piece 5, an adjusting piece 6, a valve body 2 with an air inlet 2a1 and an air outlet 2b1, a push switch 4 arranged on the valve body 2 for controlling the mutual connection or disconnection of the air inlet 2a1 and the air outlet 2b1, and a control switch 3 for controlling the opening and closing of the air inlet 2a1 and having an ignition function. The valve body 2 is provided with a plurality of fixing holes 2g, and the valve body 2 is fixed on the gas stove through the matching of the fasteners and the fixing holes 2 g. In this embodiment, the control switch 3 includes a ball valve 32 and an ignition switch 31.

Specifically, the valve body 2 includes an air inlet pipe section 2a, an air outlet pipe section 2b, a connecting pipe section 2d, an ignition pipe section 2c, an adjustment pipe section 2e, and an adjustment pipe section 2f, all of which are tubular. The port of one end of the air inlet pipe section 2a is an air inlet 2a1, the port of one end of the air outlet pipe section 2b is an air outlet 2b1, and the other end of the air inlet pipe section 2a and the other end of the air outlet pipe section 2b are both connected to the side wall of the connecting pipe section 2 d. The gas inlet pipe section 2a and the gas outlet pipe section 2b are arranged in parallel and are respectively positioned at two sides of the connecting pipe section 2d, so that a path for gas to enter from the gas inlet 2a1 and to be output from the gas outlet 2b1 is Z-shaped, and the smoothness of gas circulation can be ensured. One end of the ignition tube section 2c is connected to the middle side wall of the air inlet tube section 2a, and the other end is ported to an ignition port 2c1, which is relatively far away from the air inlet 2a1 and the air outlet 2b 1. The inner diameter of the ignition port 2c1 is smaller than that of the air outlet port 2b1, the inner diameter of the ignition port 2c1 is smaller than that of the air inlet port 2a1, and the ignition switch 31 is used for igniting the gas delivered by the ignition port 2c1, so that the gas delivered by the ignition port 2c1 can only form a strand of small normally open flame, and the waste of the gas is almost negligible.

Furthermore, the adjusting pipe section 2e and the ignition pipe section 2c are coaxially arranged, the adjusting pipe section 2e and the ignition pipe section 2c are respectively connected to two sides of the air inlet pipe section 2a, and the inner diameter of the communication part of the ignition pipe section 2c and the air inlet pipe section 2a is smaller than that of the ignition air port 2c 1. Adjusting part 5 is shaft-like, and adjusting part 5 threaded connection is in adjusting pipe section 2e, and the one end of adjusting part 5 stretch into in the intake pipe section 2a and relative with the port of ignition pipe section 2c, can adjust the interval between adjusting part 5 and the ignition pipe section 2c port through the length that control adjusting part 5 stretched into in the intake pipe section 2a to play the effect of the flow of the gas that the regulation got into in the ignition pipe section 2c, thereby can adapt to different types of gas. The internal diameter of ignition pipe section 2c and the external diameter that admits air pipe section 2a intercommunication department is less than regulating part 5, has reduced the velocity of flow behind the gas entering ignition pipe section 2c, avoids the gas velocity of flow too fast, arouses the flame to spray in the ignition process.

The adjustment pipeline section 2f is connected on the lateral wall of the pipeline section 2b of giving vent to anger and is set up side by side with connecting pipe section 2d, adjusting part 6 is shaft-like, 6 threaded connection of adjusting part is in adjustment pipeline section 2f, and the one end of adjusting part 6 stretches into in the pipeline section 2b of giving vent to anger, adjust the air current that crosses in the pipeline section 2b of giving vent to anger through rotating adjusting part 6 control its length that stretches into in the pipeline section 2b of giving vent to anger, thereby play the effect of the air output of strip gas outlet 2b1 department, can adapt to different kinds of gas.

The control switch 3 is a ball valve 32, which comprises a valve seat 3c, a control handle 3b and a ball core 3a with an air passage 3a1, wherein the valve seat 3c is tubular, one end of the valve seat 3c is connected with the end part of the air inlet pipe section 2a with an air inlet 2a1 in a threaded sealing manner, and the other end is connected with a pipe joint 7. The ball core 3a is arranged in the valve seat 3c, the ball core 3a is provided with a valve rod, the valve rod extends out of the valve seat 3c and is connected with the control handle 3b, and the control handle 3b can control the ball core 3a to rotate in the valve seat 3c, so that the air passage 3a1 is communicated with or staggered with the air inlet 2a 1. The ignition switch 31 is fixed on the valve seat 3c or the air inlet pipe section 2a, the control handle 3b is provided with a projection 3b1, the control handle 3b is linked with the ignition switch 31, and when the control handle 3b rotates the air duct 3a1 of the ball core 3a to be communicated with the air inlet 2a1, the projection 3b1 on the control handle 3b can drive the ignition contact 31a of the ignition switch 31 to realize ignition.

The push switch 4 is arranged on the connecting pipe section 2d, a step surface 2d1 is arranged in the connecting pipe section 2d, and the step surface 2d1 is positioned between the communication position of the air inlet pipe section 2a and the connecting pipe section 2d and the communication position of the air outlet pipe section 2b and the connecting pipe section 2 d. The push switch 4 includes a push rod 4a, a push plate 4d, a valve core 4b, and a switch knob 4 c. The switch button 4c comprises a cylinder 4c1, an expansion body 4c2, a sliding piece 4c3, a lock rod 4c4 and a return spring 4c5, wherein one end of the expansion body 4c2 is fixed with the valve core 4b, the other end of the expansion body 4c2 extends into the cylinder 4c1 and can axially expand relative to the cylinder 4c1, and two ends of the return spring 4c5 are respectively abutted against the expansion body 4c2 and the cylinder 4c 1. The telescopic body 4c2 is provided with a sliding groove 4c21 along the axial direction, the sliding piece 4c3 is fixed on the cylinder 4c1, and one end of the sliding piece extends into the cylinder 4c1 and is embedded into the sliding groove 4c 21. One end of the lock rod 4c4 is fixed at the bottom of the cylinder 4c1, the telescopic body 4c2 is provided with a labyrinth lock groove 4c22, the other end of the lock rod 4c4 is bent to form a lock head, and the lock head is embedded into the labyrinth lock groove 4c22 and can slide relative to the labyrinth lock groove 4c22 to realize locking and unlocking. The valve core 4b can abut against the step surface 2d1 to separate the air inlet 2a1 from the air outlet 2b1, one end of the pressing rod 4a extends into the connecting pipe section 2d to abut against the valve core 4b, and the other end extends out of the connecting pipe section 2d to be connected with the pressing disc 4 d. The connecting pipe section 2d is also in threaded connection with a plug 1, and the cylinder 4c1 is fixed on the plug 1. In this embodiment, the labyrinth lock groove 4c22 includes an upper section having a V-shape and a lower section having a Y-shape.

When cooking is required, the cook operates the control switch 3 to open the gas inlet 2a1, the gas range is opened, and a part of the gas entering the valve body 2 from the gas inlet 2a1 flows to the ignition gas port 2c1 and a part flows to the gas outlet 2b 1. When the control switch 3 opens the air inlet 2a1, the ignition switch 31 can be driven to work to ignite the fuel gas conveyed to the burner through the ignition air port 2c1, a strand of fire for ignition is formed at the burner, and after ignition, the strand of fire formed at the ignition air port 2c1 is a normally open fire as long as the control switch 3 is not closed. The cook pushes the pressing plate 4d with knees again, so that the pressing rod pushes the valve core 4b to compress the telescopic body 4c2 to move relative to the cylinder body 4c1 and lock the channel through the matching of the lock rod 4c4 and the labyrinth lock groove 4c22, the valve core 4b is far away from the step surface 2d1, the air outlet 2b1 is communicated with the air inlet 2a1, the air outlet 2b1 conveys gas to the furnace end and is ignited through kindling, the gas stove enters an ignition state, and cooking can be carried out. After cooking a dish, a cook only needs to press the pressure plate 4d with the knee top to push the telescopic body 4c2 to move, so that the lock rod 4c4 slides along the labyrinth lock groove 4c22 to realize unlocking, the valve core 4b returns under the action of the return spring 4c5 to abut against the step surface 2d1, the gas outlet 2b1 and the gas inlet 2a1 are disconnected, the gas outlet 2b1 stops conveying gas into the burner, the big fire at the burner is extinguished, only the fire type ignited by the gas conveyed by the ignition gas port 2c1 is left, and the gas stove enters a fire-off state. When a next dish needs to be cooked, the cook pushes the push switch 4 with the knees to enable the air outlet 2b1 to be communicated with the air inlet 2a1, the air outlet 2b1 conveys gas to the burner and ignites the gas through the fire seeds, and the gas stove enters the firing state again to cook and sequentially and circularly operate. When all cooking operations are finished, the gas range is brought into a closed state by opening the gas inlet 2a1 and the gas outlet 2b1 by pressing the switch 4 and closing the gas inlet 2a1 by the control switch 3.

This control valve structure of gas-cooker opens the back at control switch 3 with air inlet 2a1, ignition switch 31 can linkage light the gas that ignition gas port 2c1 carried to the furnace end department and form the kindling, ignition switch 31's action and ignition gas port 2c 1's break-make all are controlled by control switch 3, as long as control switch 3 opens, the kindling that forms is exactly a normal open flame, when the follow-up switch fire operation that carries out through press switch 4, ignition switch 31 is no longer participated in, not only very big reduction the possibility of ignition switch 31 sensitivity reduction, can also guarantee that it can succeed to ignite at every turn, the potential safety hazard has been eliminated, cook's work efficiency has also been improved, the life of ignition switch 31 has also been prolonged simultaneously.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides a control valve structure of gas-cooker, includes valve body (2) that has air inlet (2a1) and gas outlet (2b1), and sets up on valve body (2) and be used for controlling air inlet (2a1) and gas outlet (2b1) push switch (4) that communicate each other or break off, its characterized in that, this control valve structure still includes control switch (3) that has the function of lighting, control switch (3) set up in air inlet (2a1) and can control air inlet (2a1) switching, and control switch (3) can light the gas of carrying to gas-cooker furnace end department when opening air inlet (2a1), still have on valve body (2) with the gas inlet (2a1) intercommunication light gas mouth (2c1), light gas mouth (2c1) are located between control switch (3) and push switch (4).

2. The control valve structure of a gas range according to claim 1, wherein the valve body (2) comprises an inlet pipe section (2a), an outlet pipe section (2b), a connecting pipe section (2d) and an ignition pipe section (2c) which are all tubular, one end of the inlet pipe section (2a) is connected to the inlet port (2a1), one end of the outlet pipe section (2b) is connected to the outlet port (2b1), the other end of the inlet pipe section (2a) and the other end of the outlet pipe section (2b) are both connected to the side wall of the connecting pipe section (2d), the push switch (4) is arranged on the connecting pipe section (2d), one end of the ignition pipe section (2c) is connected to the side wall of the inlet pipe section (2a), and the other end of the ignition pipe section (2c) is connected to the ignition port (2c 1).

3. The control valve structure of a gas range according to claim 2, wherein the gas inlet pipe section (2a) and the gas outlet pipe section (2b) are arranged in parallel and are respectively located at two sides of a connecting pipe section (2d), a step surface (2d1) is arranged in the connecting pipe section (2d), the step surface (2d1) is located between the communication position of the gas inlet pipe section (2a) and the connecting pipe section (2d) and the communication position of the gas outlet pipe section (2b) and the connecting pipe section (2d), and a valve core (4b) of the push switch (4) can abut against the step surface (2d1) to block the gas inlet (2a1) and the gas outlet (2b 1).

4. The control valve structure of gas range according to claim 2, wherein the ignition tube section (2c) is connected to a middle side wall of the intake tube section (2 a).

5. The control valve structure of gas range according to claim 2, 3 or 4, characterized in that the valve body (2) is further provided with an adjusting member (5) for adjusting the amount of gas discharged from the ignition tube section (2 c).

6. The control valve structure of a gas range according to claim 5, wherein the valve body (2) further comprises an adjusting pipe section (2e) having a tubular shape, the adjusting pipe section (2e) and the ignition pipe section (2c) are respectively connected to both sides of the gas inlet pipe section (2a), the adjusting member (5) has a rod shape, the adjusting member (5) is threadedly connected in the adjusting pipe section (2e), and one end of the adjusting member (5) is inserted into the gas inlet pipe section (2a) and is opposite to a port of the ignition pipe section (2 c).

7. The control valve structure of gas range according to claim 6, wherein said adjusting pipe section (2e) is coaxially arranged with said ignition pipe section (2c), and the inner diameter of the place where said ignition pipe section (2c) communicates with the gas inlet pipe section (2a) is smaller than the inner diameter of the ignition gas port (2c1), and the inner diameter of the place where said ignition pipe section (2c) communicates with the gas inlet pipe section (2a) is smaller than the outer diameter of the adjusting member (5).

8. The control valve structure of the gas stove according to claim 2, 3 or 4, characterized in that the valve body (2) is further provided with an adjusting member (6) for adjusting the amount of the gas discharged from the gas outlet (2b1), the valve body (2) further comprises an adjusting pipe section (2f), the adjusting pipe section (2f) is connected to one side wall of the gas outlet pipe section (2b), the adjusting member (6) is rod-shaped, the adjusting member (6) is screwed into the adjusting pipe section (2f), and one end of the adjusting member (6) extends into the gas outlet pipe section (2 b).

9. The control valve structure of gas range according to claim 1 or 2 or 3 or 4, characterized in that the ignition port (2c1) has an inner diameter smaller than that of the gas outlet port (2b1), and the ignition port (2c1) has an inner diameter smaller than that of the gas inlet port (2a 1).

10. The control valve structure of a gas range according to claim 2, 3 or 4, the control switch (3) comprises a ball valve (32) and an ignition switch (31), the ball valve (32) comprises a valve seat (3c), a control handle (3b) and a ball core (3a) with an air duct (3a1), the valve seat (3c) is connected to one end of the air inlet pipe section (2a) with an air inlet (2a1), the ball core (3a) is arranged in a valve seat (3c), the control handle (3b) is connected with the ball core (3a) and can control the ball core (3a) to rotate in the valve seat (3c) so that the air duct (3a1) is communicated with or staggered with the air inlet (2a1), the ignition switch (31) is fixed on the valve seat (3c) or the air inlet pipe section (2a), an ignition contact piece (31a) of the ignition switch (31) is linked with the control handle (3 b).