CN111237526A - Gas control valve - Google Patents

Abstract

The application discloses a gas control valve, which can be matched with an electric controller and a flame ion probe to be applied to a gas appliance, and plays the role of controlling a gas switch. The control valve structure comprises: a valve body, a valve core rotatably arranged in the valve body, a double rocker arm rod which can be connected with a valve core push rod, and a self-priming solenoid valve. When the valve core push rod moves, it can drive the double rocker arm rod to rotate, and the rotation of the double rocker arm rod can touch the sealing gasket, which forms a resultant force with the magnetic force generated by the solenoid valve, and jointly overcomes the problem of large resistance at the moment of opening the self-priming solenoid valve. Make the self-priming solenoid valve open more smoothly, connect the outlet channel, and make the gas flow out from the nozzle through the valve body to the burner for combustion.

Description

a gas control valve

technical field

The application relates to a gas control valve, in particular to a gas control valve with an auxiliary opening function for household gas appliances.

Background technique

With the improvement of people's living standards, gas appliance products, including household gas stoves, heaters, barbecue grills, etc., have been popularized in thousands of households.

At present, there are two main structures of gas appliance gas mechanical control valves on the market. First, a self-priming solenoid valve is installed on the main air intake channel. The working process is that when any control valve is opened, the self-priming solenoid valve is The self-priming solenoid valves are all opened, and the gas enters the control valve through the self-priming solenoid valve. The self-priming solenoid valve requires external electricity to generate a magnetic force to drive the sealing gasket away from the sealing surface, thereby opening the gas channel; second, install a separate one on the control valve. For the independent hand-push low-current solenoid valve, when the control valve is opened, the sealing gasket of the solenoid valve must be manually pushed open until it touches the bottom before the sealing gasket can be sucked in, thereby opening the gas passage.

In actual use, when opening the control valve equipped with the self-priming solenoid valve structure, sometimes the self-priming solenoid valve cannot be opened due to instantaneous resistance. The main reason is that due to the adsorption inertia force generated by the sealing gasket and the sealing surface Caused by insufficient electromagnetic self-suction force (the adsorption inertia force mainly occurs in two cases, one is caused by the vacuum negative pressure generated between the gasket and the sealing surface; the other is the solidification of the sealing oil between the gasket and the sealing surface generated and affected by the outside temperature.). In addition, when the hand-push low-current solenoid valve is opened, due to manufacturing errors, the push rod cannot be pushed in place, the solenoid valve cannot absorb the sealing gasket, and the sealing gasket is released again, which will also cause the valve to fail to open.

SUMMARY OF THE INVENTION

The embodiments of the present application solve the technical problem of unreliable use of the control valve in the prior art by providing a gas control valve.

An object of the present application is to provide a gas control valve that can be effectively opened.

Another object of the present application is to provide a gas control valve that can overcome the adsorption inertia force generated by the vacuum negative pressure generated between the sealing gasket and the sealing surface, so that the gas passage can be opened more smoothly.

Another object of the present application is to provide a gas control valve that can overcome the adsorption inertia force generated by the solidification of the sealing oil between the sealing gasket and the sealing surface, so as to make the opening of the gas passage more smoothly.

Another object of the present application is to provide a gas control valve with simple and effective operation.

To achieve the above object, the application adopts the following technical solutions:

The present application discloses a gas control valve, comprising:

(1) valve body;

(2) a valve core rotatably arranged inside the valve body; the valve core includes a valve core push rod;

(3) Double rocker levers that can be connected to the spool push rod; and

(4) Self-priming solenoid valve; it includes a sealing gasket and a sealing spring.

When the valve core push rod moves, it drives the double rocker arm rod to rotate, and the rotation of the double rocker arm rod can touch the sealing gasket, so that the sealing gasket is separated from the sealing surface of the air outlet, thereby overcoming the adsorption inertia force caused by the sealing surface and making the self-priming The type solenoid valve is more smoothly sucked and closed, and the gas channel is opened, so that the gas flows out through the valve body to the burner for combustion.

In some embodiments, the valve core of the gas control valve includes a knob rod, and the knob rod drives the valve core to rotate when rotated, thereby controlling the flow of gas.

In some embodiments, when the knob rod is pressed downward, the valve core push rod is driven to move downward.

In some embodiments, when the valve core push rod moves downward, it pushes the double rocker arm rod to rotate about the axial direction.

In some embodiments, the double rocker arm includes a long arm, a short arm, and a first hinge and a second hinge respectively located at both ends of the double rocker.

In some embodiments, the short arm rod may be connected with the valve core push rod.

In some embodiments, the long arm can be connected to a gasket.

Further, in some embodiments, when the valve core push rod moves downward, the short arm rod that pushes the double rocker arm rod rotates about the axial direction.

Further, in some embodiments, when the short arm rod rotates in the axial direction, the double rocker arm rod drives the long arm rod to rotate in the axial direction.

Further, in some embodiments, when the long arm rod rotates around the axial direction, it touches the sealing gasket of the self-priming solenoid valve.

Further, in some embodiments, the sealing gasket of the self-priming solenoid valve overcomes the instantaneous resistance after being touched by the long arm rod, and at the same time, after the self-priming solenoid valve sucks the sealing gasket, the two form a resultant force , together to overcome the problem of large resistance at the moment of opening the self-priming solenoid valve, so that the self-priming solenoid valve can be opened more smoothly, connecting the gas channel, and the gas flows into the valve core through the gas outlet channel.

In some embodiments, a gland is provided under the valve body.

In some embodiments, the double rocker arm rod is provided between the valve body and the gland, and the gland can support the first hinge and the second hinge at both ends of the double rocker arm.

In some embodiments, the valve body includes a first nozzle and a second nozzle.

In some embodiments, the valve body further includes an air inlet, a gas inlet channel and a gas outlet channel provided in the valve body.

In some embodiments, the self-priming solenoid valve is connected with an electric controller through an electrical signal, and the electric controller controls the opening and closing of the sealing gasket of the self-priming solenoid valve, thereby opening or closing the gas passage.

The working principle of the existing gas cooker using a self-priming solenoid valve is that when the knob lever is pressed down, the travel switch or the contact switch is touched, and an electrical signal is sent to the electric controller at this time, and the electric controller outputs an electric signal to the electric controller. Self-priming solenoid valve, driven by electromagnetic force, the solenoid valve overcomes the spring force of the sealing spring to attract the sealing gasket, so that the sealing gasket is separated from the sealing surface, thereby opening the gas channel, and the cooker ignites.

The working principle of the improved gas control valve of the present application is as follows:

The gas enters the gas inlet channel from the air inlet. When the knob lever is pressed down, it touches the travel switch or the contact switch, and the knob lever pushes the valve core push rod, and then the valve core push rod pushes the short arm rod, double rocker arm The rod rotates around the axis, and drives the long arm rod to touch the sealing gasket of the self-priming solenoid valve, the gasket is separated from the sealing surface, and the control valve sends an electrical signal to the electric controller, and the electric controller outputs an electrical signal to the self-priming solenoid valve. The solenoid valve, driven by the electromagnetic force, overcomes the force of the sealing spring to pull the sealing gasket together, thereby opening the gas outlet channel. The gas flows into the bottom of the valve core from the gas outlet channel through the gap between the valve body and the gland, and then the knob rod rotates to drive the valve core to adjust the gas flow, and control the gas to be injected from the first nozzle and the second nozzle to the burner to burn.

When the self-priming solenoid valve is de-energized, under the action of the spring force of the sealing spring, the sealing gasket is pushed back to reset and the gas outlet channel is closed. Rotate the lever clockwise to reset.

The gas control valve can be matched with an electric controller and a flame ion probe to be applied to gas appliances to control the gas switch.

Compared with the prior art, the beneficial effect of one of the above technical solutions is that the voltage required when the self-priming solenoid valve is opened is a fixed value, and the instantaneous resistance is a variable, so there is no instantaneous resistance. and cannot be turned on. At the same time, it also overcomes the defect that the hand-push low-current solenoid valve cannot be opened because it cannot be touched in place. It only needs to touch the gasket slightly with the long arm rod to make it separate from the sealing surface of the air inlet.

Another technical solution in the above technical solutions has the beneficial effects that the gas control valve of the present application does not require an independent installation of a hand-push low-current solenoid valve, and is easier to operate.

Description of drawings

1 is a perspective view of an embodiment of the present application;

Figure 2 is a cross-sectional view in one direction in the embodiment of Figure 1;

Fig. 3 is the front view in the embodiment;

Fig. 4 is the top view in the embodiment;

Figure 5 is a left side view in the embodiment;

FIG. 6 is a cross-sectional view in one direction in the embodiment of FIG. 3 .

FIG. 7 is a cross-sectional view in one direction in the embodiment of FIG. 5 .

8 is a perspective view of a double rocker lever.

Reference signs: 1-valve body, 1.1-nozzle one, 1.2-nozzle two, 2-air inlet, 2.1-air inlet channel, 3-self-priming solenoid valve, 3.1-sealing spring, 3.2-sealing gasket, 4 -Knob rod, 5-air outlet sealing surface, 6-double rocker arm rod, 6.1-long arm rod, 6.2-short arm rod, 6.3-hinge one, 6.4-hinge two, 7- valve core, 8- valve core push Rod, 9-air outlet channel, 10- gland.

Detailed ways

In order to make the above objects, features and advantages of the present application more clearly understood, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or an intervening element may also be present.

When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

When an element is referred to as being "connectable" to another element, such as "connectable to an element", it can be directly connected to the other element or intervening elements may also be present; or be connected in some states, such as Contact connection, there is no connection in some states, such as no contact; or it is always connected.

The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are for the purpose of describing specific embodiments only, and are not intended to limit the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in Figures 1-8, a gas control valve described in this application includes a valve body 1, a nozzle one 1.1, a nozzle two 1.2, an air inlet 2, an air inlet passage 2.1, a self-priming solenoid valve 3, a seal Spring 3.1, gasket 3.2, knob rod 4, air outlet sealing surface 5, double rocker rod 6, long arm rod 6.1, short arm rod 6.2, hinge one 6.3, hinge two 6.4, valve core 7, valve core push rod 8 , outlet channel 9, gland 10.

The self-priming solenoid valve 3 controls the opening and closing of the sealing gasket 3.2 through an electric controller (not shown in the figure). This gas control valve can be used in conjunction with a flame ion probe (not shown) on the burner.

As shown in FIG. 2 , the gas control valve of the present application includes a valve body 1, a valve core 7 rotatably arranged in the valve body 1, a double rocker arm 6 that can be connected with the valve core 7; and a self-priming solenoid valve 3.

As shown in FIG. 2, the valve body 1 includes an air inlet 2, an air inlet passage 2.1, an air outlet passage 9, a nozzle one 1.1, and a nozzle two 1.2. The air inlet 2, the air inlet channel 2.1, and the air outlet channel 9 can be fluidly connected with the nozzle one 1.1 and the nozzle two 1.2 for conveying fuel gas.

As shown in Figures 1-2, under the valve body 1, a gland 10 is provided.

As shown in Figure 1-2, the valve core 7 is rotatably arranged in the valve body 1, the outer wall of the valve core 7 is close to the inner wall of the valve body 1, the valve core 7 is provided with a knob rod 4, and the valve core 7 is down A valve core push rod 8 is provided.

As shown in FIG. 8 , the double rocker arm rod 6 is provided with a long arm rod 6.1 and a short arm rod 6.2, as well as hinge one 6.3 and hinge two 6.4 at both ends. The first hinge 6.3 and the second hinge 6.4 are embedded on the pressure cover 10, so that the double rocker arm 6 can rotate around the axis.

As shown in FIG. 2 , the self-priming solenoid valve 3 includes a sealing spring 3.1 and a sealing gasket 3.2.

As shown in Figure 1-8, the gas enters from the air inlet 2. When the knob rod 4 is pressed down, the valve core push rod 8 is pushed down to touch the short arm rod 6.2, and the short arm rod 6.2 drives the double rocker arm. The rod 6 rotates counterclockwise, and at the same time drives the long arm rod 6.1 to rotate, the long arm rod 6.1 touches the gasket 3.2 lightly, and the gasket 3.2 leaves the air outlet sealing surface 5 at this time, and the self-priming solenoid valve 3 is under the action of electromagnetic force, The sealing gasket 3.2 is adsorbed against the force of the sealing spring 3.1, thereby opening the gas outlet channel 9. The gas flows into the bottom of the valve core 7 from the gas outlet channel 9 through the gap between the valve body 1 and the gland 10, and then the knob rod 4 rotates to drive the valve core 7 to adjust the gas flow, and control the gas to be sprayed from the nozzle one 1.1 and the nozzle two 1.2 to the bottom of the valve core 7. Burner burns.

As shown in Figure 6-8, the double rocker arm rod 6 is installed between the valve body 1 and the gland 10, and the double rocker arm rod 6 can rotate around the hinge 1 6.3 and the hinge 2 6.4. When the self-priming solenoid valve 3 loses power At the same time, under the force of the sealing spring 3.1, the sealing gasket 3.2 is pushed back to reset and the gas outlet channel 9 is closed. Turn to reset.

The working principle of the gas cooker with self-priming solenoid valve is that when the knob lever is pressed down, it touches the travel switch or the contact switch (not shown in the figure), and an electrical signal is sent to the electric controller (not shown in the figure). The electric controller outputs an electrical signal to the self-priming solenoid valve. The solenoid valve, driven by the electromagnetic force, overcomes the force of the sealing spring to pull the sealing gasket together, so that the sealing gasket is separated from the sealing surface, thereby opening the gas channel and the cooker ignites. Work.

As an embodiment of the patent of the present application, in the gas control valve, when the knob rod is pressed down, it touches the travel switch or the contact switch, and the knob rod pushes the valve core push rod, and at the same time the knob rod push rod pushes The short arm rod, and drives the long arm rod to touch the sealing gasket of the self-priming solenoid valve, the sealing gasket is separated from the sealing surface, and the control valve sends an electrical signal to the electric controller, and the electric controller outputs an electrical signal to the self-priming solenoid valve. , Driven by the electromagnetic force, the solenoid valve overcomes the force of the sealing spring to pull the sealing gasket together, thereby opening the gas channel, and the cooker ignites.

The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various and other combinations, modifications and environments, and can be modified within the scope of the inventive concepts described herein, from the above teachings or from skill or knowledge in the relevant art. However, modifications and changes made by those skilled in the art do not depart from the spirit and scope of the present application, and should all fall within the protection scope of the appended claims of the present application.

Claims (8)

1. A gas control valve is characterized in that comprising: (1) valve body; (2) a valve core rotatably arranged inside the valve body; the valve body contains a valve core push rod; (3) Double rocker levers that can be connected to the spool push rod; and (4) Self-priming solenoid valve; it includes sealing gasket and sealing spring; When the valve core push rod moves, it can drive the double rocker arm rod to rotate, and the rotation of the double rocker arm rod can touch the sealing gasket, so that the sealing gasket is separated from the sealing surface of the air outlet. 2 . The gas control valve according to claim 1 , wherein the valve core comprises a knob rod, and the knob rod drives the valve core to rotate when rotated. 3 . 3 . The gas control valve according to claim 2 , wherein when the knob rod is pressed downward, the valve core push rod is driven to move downward. 4 . 4. The gas control valve according to claim 1, wherein the double rocker arm rod comprises a long arm rod, a short arm rod, and hinge 1 and hinge 2 respectively located at both ends of the double rocker arm rod. 5. The gas control valve according to claim 4, wherein the short arm rod can be connected with the valve core push rod, and the long arm rod can be connected with the sealing gasket. 6 . The gas control valve according to claim 4 , wherein the valve body is provided with a gland, the double rocker lever is arranged between the valve body and the gland, and the gland can support a hinge. 7 . and hinge II. 7 . The gas control valve according to claim 1 , wherein the valve body further comprises an air inlet, a gas inlet channel and a gas outlet channel arranged in the valve body, and a first nozzle and a second nozzle. 8 . 8 . The gas control valve according to claim 1 , wherein the self-priming solenoid valve controls the opening and closing of the sealing gasket of the self-priming solenoid valve through an electric controller, thereby opening or closing the gas passage. 9 .

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