CN111237526A

CN111237526A - Gas control valve

Info

Publication number: CN111237526A
Application number: CN202010185511.0A
Authority: CN
Inventors: 刘艳春; 方红
Original assignee: Guangzhou Redsun Gas Appliances Co ltd
Current assignee: Guangzhou Redsun Gas Appliances Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-06-05

Abstract

The application discloses gas control valve, this control valve can with the electric controller, the supporting gas utensil of being applied to of flame ion probe is played the effect of control gas switch. The control valve structure includes: the valve comprises a valve body, a valve core which is rotatably arranged in the valve body, a double rocker arm rod which can be connected with a valve core push rod, and a self-suction electromagnetic valve. The valve core push rod can drive the double rocker arms to rotate when moving, the double rocker arms can trigger the sealing gasket to form resultant force with magnetic force generated by the electromagnetic valve, the problem that the self-suction electromagnetic valve is large in resistance at the moment of opening is jointly solved, the self-suction electromagnetic valve is enabled to be opened more smoothly, the gas outlet channel is communicated, and gas flows out of the nozzle through the valve body and is combusted in the combustor.

Description

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 a household gas appliance.

Background

With the improvement of the living standard of people, gas appliance products including household gas cookers, heaters, barbecue ovens and the like are popularized to thousands of households.

The mechanical gas control valve for the gas appliance in the market at present mainly has two structures, wherein a self-suction electromagnetic valve is arranged on a main gas inlet channel, the working process of the mechanical gas control valve is that when any control valve is opened, the self-suction electromagnetic valve is opened, gas enters the control valve through the self-suction electromagnetic valve, and the self-suction electromagnetic valve needs external electricity to generate magnetic force to drive a sealing gasket to be separated from a sealing surface, so that a gas channel is opened; secondly, an independent hand-push type low-current electromagnetic valve is independently installed on the control valve, when the control valve is opened, a sealing gasket of the electromagnetic valve is manually pushed open to touch the sealing gasket to the bottom, and then the sealing gasket can be attracted, so that a gas channel is opened.

In practical use, when a control valve provided with a self-suction electromagnetic valve structure is opened, the self-suction electromagnetic valve can not be opened due to instant resistance sometimes, and the main reason is that the self-suction electromagnetic valve is not enough due to the adsorption inertia force generated by the sealing gasket and the sealing surface (the adsorption inertia force is mainly generated by two conditions, namely vacuum negative pressure generated between the sealing gasket and the sealing surface, and sealing oil between the sealing gasket and the sealing surface is solidified and is influenced by external temperature). In addition, when the hand-push type low-current electromagnetic valve is opened, the push rod cannot be pushed to the position due to manufacturing errors, the electromagnetic valve cannot suck the sealing gasket, the sealing gasket is loosened and reset, and the valve cannot be opened.

Disclosure of Invention

The embodiment of the application solves the technical problem that the control valve in the prior art is unreliable in use by providing the fuel gas control valve.

It is an object of the present application to provide a gas control valve that can be opened efficiently.

Another object of the present invention 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, and can open the gas passage 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, and make the opening of the gas passage smoother.

Another object of the present application is to provide a gas control valve that is easy and efficient to operate.

In order to achieve the purpose, the technical scheme is as follows:

the application discloses gas control valve includes:

(1) a valve body;

(2) the valve core is rotatably arranged in the valve body; the valve core comprises a valve core push rod;

(3) a double rocker arm rod which can be connected with the valve core push rod; and

(4) a self-priming electromagnetic valve; which comprises a sealing gasket and a sealing spring.

The valve core push rod drives the double rocker arm rods to rotate when moving, the double rocker arm rods rotate to touch the sealing gasket, and the sealing gasket is separated from the sealing surface of the gas outlet, so that the adsorption inertia force caused by the sealing surface is overcome, the self-suction type electromagnetic valve is attracted more smoothly, a gas channel is opened, and gas flows out of the valve body to the combustor to be combusted.

In some embodiments, the valve core of the gas control valve comprises a knob rod which rotates to drive the valve core to rotate, so as to control the flow rate of the gas.

In some embodiments, the knob rod, when pressed downward, moves the valve core push rod downward.

In some embodiments, the dual rocker arm is urged to pivot when the valve core push rod moves downward.

In some embodiments, the dual rocker arm lever comprises a long arm lever, a short arm lever, and a first hinge and a second hinge at two ends of the dual rocker arm lever, respectively.

In some embodiments, the short arm may be connected to a spool push rod.

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

Further, in some embodiments, the spool push rod pushes the short arm lever of the dual rocker arm lever to rotate around the axial direction when moving downwards.

Further, in some embodiments, when the short arm lever rotates around the axial direction, the long arm lever is driven to rotate around the axial direction by the double rocker arm lever.

Further, in some embodiments, the long arm rod touches a sealing gasket of the self-suction type electromagnetic valve when rotating around the axial direction.

Further, in some embodiments, after the sealing gasket of the self-suction electromagnetic valve is touched by the long arm rod, the instantaneous resistance is overcome, and meanwhile, after the self-suction electromagnetic valve is sucked to the sealing gasket, the self-suction electromagnetic valve and the sealing gasket form resultant force to jointly overcome the problem that the instantaneous resistance is large when the self-suction electromagnetic valve is opened, so that the self-suction electromagnetic valve is opened more smoothly to communicate with a gas channel, and 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 dual rocker arm lever is disposed between the valve body and a gland that may support the first and second hinges at both ends of the dual rocker arm lever.

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

In some embodiments, the valve body further comprises an air inlet, and a gas inlet channel and a gas outlet channel are arranged in the valve body.

In some embodiments, the self-priming solenoid valve is electrically connected with an electric controller, and the electric controller controls the opening and closing of a sealing gasket of the self-priming solenoid valve so as to open or close a gas channel.

The existing gas cooker adopting the self-suction electromagnetic valve has the working principle that when a knob rod is pressed down, a travel switch or a contact switch is touched, an electric signal is sent to an electric controller at the moment, the electric controller outputs the electric signal to the self-suction electromagnetic valve, the electromagnetic valve overcomes the spring force of a sealing spring to suck a sealing gasket under the driving of electromagnetic force, the sealing gasket is separated from a sealing surface, a gas channel is opened, and the gas cooker works in an ignition mode.

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

the gas gets into gas inlet channel from the air inlet, when pushing down the knob pole, touch travel switch or contact switch, and the knob pole promotes the case push rod, and then the case push rod promotes short armed lever, two rocking arm poles rotate around the axle center, and drive long armed lever touch the sealed pad of inhaling formula solenoid valve, sealed pad breaks away from sealed face, the control valve sends electrical signal to give the electric controller simultaneously, the electric controller outputs electrical signal for inhaling formula solenoid valve, the solenoid valve is under the drive of electromagnetic force, overcome sealed spring force and will seal up the pad actuation, thereby open gas outlet channel. The gas flows into the bottom of the valve core from the gas outlet channel through a gap between the valve body and the gland, and then the valve core is driven by the rotation of the knob rod to adjust the gas flow, so that the gas is controlled to be sprayed to the combustor from the first nozzle and the second nozzle for combustion.

When the self-suction electromagnetic valve is powered off, the sealing gasket is pushed to reset under the action of the spring force of the sealing spring to seal the gas outlet channel, and meanwhile, the sealing gasket also pushes the long arm rod on the double rocker arm rod to enable the double rocker arm rod to rotate clockwise to reset.

The gas control valve can be matched with an electric controller and a flame ion probe to be applied to a gas appliance to play a role in controlling a gas switch.

Compared with the prior art, one of the technical schemes has the beneficial effects that: because the voltage required when the self-suction electromagnetic valve is opened is a fixed value and the instant resistance is a variable, the self-suction electromagnetic valve cannot be opened due to the instant resistance. Meanwhile, the defect that the hand-push type low-current electromagnetic valve cannot be opened due to the fact that the hand-push type low-current electromagnetic valve is not touched in place is overcome, and the long arm rod only needs to slightly touch the sealing gasket to enable the sealing gasket to be separated from the sealing surface of the air inlet.

The beneficial effects of another technical scheme in the above technical scheme are as follows: the gas control valve does not need to be independently provided with a hand-push type low-current electromagnetic valve, and is simpler and more convenient to operate.

Drawings

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

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

FIG. 3 is a front view of the embodiment;

FIG. 4 is a top view of the embodiment;

FIG. 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.

Fig. 8 is a perspective view of a dual rocker arm lever.

Reference numerals: 1-valve body, 1.1-first nozzle, 1.2-second nozzle, 2-air inlet, 2.1-air inlet channel, 3-self-priming electromagnetic valve, 3.1-sealing spring, 3.2-sealing pad, 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-first hinge, 6.4-second hinge, 7-valve core, 8-valve core push rod, 9-air outlet channel and 10-gland.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are 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. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements 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, e.g., "connectable to" the element, it can be directly connected to the other element or intervening elements may also be present; or connected in some states, e.g., contact, and unconnected in some states, e.g., no contact; or always connected.

The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of 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 fig. 1 to 8, the gas control valve described in the present application includes a valve body 1, a first nozzle 1.1, a second nozzle 1.2, a gas inlet 2, a gas inlet channel 2.1, a self-priming electromagnetic valve 3, a sealing spring 3.1, a sealing gasket 3.2, a knob rod 4, a gas outlet sealing surface 5, a dual-rocker arm rod 6, a long arm rod 6.1, a short arm rod 6.2, a first hinge 6.3, a second hinge 6.4, a valve core 7, a valve core push rod 8, a gas outlet channel 9, and a gland 10.

The self-priming solenoid valve 3 controls the opening and closing of the sealing gasket 3.2 by an electric controller (not shown in the figure). The gas control valve may 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 element 7 rotatably provided in the valve body 1, and a double rocker arm lever 6 connectable to the valve element 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 channel 2.1, an air outlet channel 9, a first nozzle 1.1, and a second nozzle 1.2. The gas inlet 2, the gas inlet channel 2.1 and the gas outlet channel 9 can be in fluid connection with the first nozzle 1.1 and the second nozzle 1.2 and are used for transmitting gas.

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

As shown in fig. 1-2, the valve core 7 is rotatably disposed in the valve body 1, the outer wall of the valve core 7 is tightly attached to the inner wall of the valve body 1, the valve core 7 is provided with a knob rod 4, and a valve core push rod 8 is disposed below the valve core 7.

As shown in fig. 8, the double rocker arm lever 6 is provided with a long arm lever 6.1 and a short arm lever 6.2, and a first hinge 6.3 and a second hinge 6.4 at two ends. The first hinge 6.3 and the second hinge 6.4 are embedded on the gland 10, so that the double rocker arm lever 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 fig. 1-8, gas enters from the gas inlet 2, when the knob rod 4 is pressed downwards, the valve core push rod 8 is pushed to touch the short arm rod 6.2 downwards, the short arm rod 6.2 drives the double-rocker arm rod 6 to rotate anticlockwise, meanwhile, the long arm rod 6.1 is driven to rotate, the long arm rod 6.1 touches the sealing gasket 3.2 lightly, at the moment, the sealing gasket 3.2 leaves the gas outlet sealing surface 5, the self-suction electromagnetic valve 3 overcomes the force of the sealing spring 3.1 to adsorb the sealing gasket 3.2 under the action of electromagnetic force, and therefore the gas outlet channel 9 is opened. 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, so that the gas is controlled to be sprayed to the combustor from the first nozzle 1.1 and the second nozzle 1.2 for combustion.

As shown in fig. 6-8, the double rocker arm lever 6 is installed between the valve body 1 and the gland 10, the double rocker arm lever 6 can rotate around the first hinge 6.3 and the second hinge 6.4, when the self-priming electromagnetic valve 3 is de-energized, the sealing gasket 3.2 is pushed to reset under the action of the sealing spring 3.1, the gas outlet channel 9 is sealed, and meanwhile, the sealing gasket 3.2 also pushes the long arm lever 6.1 on the double rocker arm lever 6, so that the double rocker arm lever 6 rotates clockwise to reset.

The working principle of the gas cooker adopting the self-suction electromagnetic valve is that when a knob rod is pressed down, a travel switch or a contact switch (not shown in the figure) is touched, an electric signal is sent to an electric controller (not shown in the figure) at the moment, the electric controller outputs the electric signal to the self-suction electromagnetic valve, the electromagnetic valve overcomes the sealing spring force to suck the sealing gasket under the driving of the electromagnetic force, so that the sealing gasket is separated from a sealing surface, a gas channel is opened, and the cooker is ignited to work.

As an embodiment of the application patent, a gas control valve, when pushing down the knob pole, touch travel switch or contact switch, and knob pole push away the case push rod, and meanwhile the knob pole push rod promotes short armed lever, and drives long armed lever touch the sealed pad of inhaling formula solenoid valve, sealed pad breaks away from sealed face, and control valve sends electrical signal to the electric controller simultaneously, and the electric controller outputs electrical signal for inhaling formula solenoid valve, and the solenoid valve overcomes sealed spring force and will seal the pad actuation under the drive of electromagnetic force, thereby opens the gas passageway, cooking utensils ignition work.

The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.

Claims

1. A gas control valve characterized by comprising:

(1) a valve body;

(2) the valve core is rotatably arranged in the valve body; the valve body comprises a valve core push rod;

(4) a self-priming electromagnetic valve; it comprises a sealing gasket and a sealing spring;

when the valve core push rod moves, the double rocker arm rod can be driven to rotate, and the double rocker arm rod rotates to trigger 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, characterized in that: the valve core comprises a knob rod which drives the valve core to rotate when rotating.

3. The gas control valve according to claim 2, characterized in that: when the knob rod is pressed downwards, the valve core push rod is driven to move downwards.

4. The gas control valve according to claim 1, characterized in that: the double rocker arm rod comprises a long arm rod, a short arm rod, a first hinge and a second hinge, wherein the first hinge and the second hinge are respectively positioned at two ends of the double rocker arm rod.

5. The gas control valve according to claim 4, characterized in that: 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, characterized in that: the double-rocker-arm rod is arranged between the valve body and the gland, and the gland can support the first hinge and the second hinge.

7. The gas control valve according to claim 1, characterized in that: the valve body further comprises an air inlet, a fuel gas inlet channel and an air outlet channel which are arranged in the valve body, and a first nozzle and a second nozzle.

8. The gas control valve according to claim 1, characterized in that: the self-suction electromagnetic valve controls the opening and closing of a sealing gasket of the self-suction electromagnetic valve through an electric controller, so that a gas channel is opened or closed.