Asynchronous switch fire plug valve

Abstract

The utility model discloses an asynchronous switch fire plug valve, and belongs to the technical field of gas stove accessories. Comprising a valve body provided with a first air inlet channel, an electromagnetic valve channel, a second air inlet channel, a main fire outlet channel and a secondary fire outlet channel; the self-suction type electromagnetic valve is arranged in the electromagnetic valve channel, the first air inlet channel communicates with the electromagnetic valve channel, and the self-suction type electromagnetic valve opens or cuts off communication between the electromagnetic valve channel and the second air inlet channel through power on and power off; the valve element is provided with a valve element air cavity, a main fire air outlet hole and a secondary fire air outlet hole, the second air inlet channel is communicated with the valve element air cavity, and when the valve element is located at the 0-degree position, a sealing bus between the main fire air outlet hole and the main fire outlet channel is longer than a sealing bus between the secondary fire air outlet hole and the secondary fire outlet channel and rotates along with rotation of the valve element. And the secondary fire outlet channel and the main fire channel are asynchronously turned on / off. In the starting process, the secondary fire is ignited firstly and then the main fire is introduced, so that the deflagration or unstable combustion phenomenon possibly caused by direct ignition of the big fire is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas stove accessories, and particularly relates to an asynchronous switch-fire cock valve. Background Art

[0002] Gas stoves usually control the opening and closing of the gas stove through a cock valve. Currently, the more commonly used ones are built-in gas stoves. "Built-in" means that the kitchen countertop is made into a "concave" shape, which can just embed the gas stove, and the stove cabinet of the gas stove is flush with the kitchen countertop. Since built-in gas stoves are beautiful, space-saving, and easy to clean, they make the kitchen look more harmonious and complete, and are more convenient for the supporting design with other kitchen utensils. Therefore, they are loved by the majority of consumers.

[0003] Currently, the cock valve often has a structure in which the main fire and the secondary fire are opened and closed synchronously, but this synchronous opening structure is not suitable for some usage scenarios that require precise control of the combustion process. Summary of the Utility Model

[0004] The present utility model aims at the above problems existing in the prior art and provides an asynchronous switch-fire cock valve.

[0005] The present utility model can be realized by the following technical solutions:

[0006] An asynchronous switch-fire cock valve, comprising:

[0007] A valve body, which has a first air inlet channel, a solenoid valve channel, a second air inlet channel, a main fire outlet channel, and a secondary fire outlet channel;

[0008] A self-priming solenoid valve, which is arranged in the solenoid valve channel, the first air inlet channel is communicated with the solenoid valve channel, and the self-priming solenoid valve opens or cuts off the communication between the solenoid valve channel and the second air inlet channel through energization and de-energization;

[0009] A valve core, which is rotatably arranged in the valve body, the valve core has a valve core air cavity, a main fire air outlet hole, and a secondary fire air outlet hole, the second air inlet channel is communicated with the valve core air cavity, wherein,

[0010] When the valve core is in the 0° position, the sealing bus between the main fire air outlet hole and the main fire outlet channel is longer than the sealing bus between the secondary fire air outlet hole and the secondary fire outlet channel. As the valve core rotates, the secondary fire outlet channel and the main fire outlet channel open / close fire asynchronously.

[0011] As a further improvement of the present utility model, the main fire outlet channel and the secondary fire outlet channel are symmetrically arranged on both sides of the valve body, and the first air inlet channel is located between the main fire outlet channel and the secondary fire outlet channel.

[0012] As a further improvement of the present utility model, the solenoid valve passage is located on the back of the valve body and has an air outlet hole of the solenoid valve passage.

[0013] As a further improvement of the present utility model, when the self-priming solenoid valve is not powered on, its piston closes the air outlet hole of the solenoid valve passage, and at this time, the solenoid valve passage is not communicated with the second air intake passage;

[0014] When the self-priming solenoid valve is powered on, its piston moves upward and opens the air outlet hole of the solenoid valve passage. At this time, the solenoid valve passage is communicated with the second air intake passage, and gas can enter the valve core air cavity through the second air intake passage.

[0015] As a further improvement of the present utility model, when the valve core rotates between 0° and 90°, the valve body is in the initial opening state. After the self-priming solenoid valve is opened, when the valve core rotates to the position where the main fire air outlet hole, the secondary fire air outlet hole are communicated with the main fire outlet passage and the secondary fire outlet passage, the main fire outlet passage and the secondary fire outlet passage emit fire.

[0016] As a further improvement of the present utility model, a valve core fire protection hole is also provided on the surface of the valve core. At the same time, a fire protection hole passage is provided in the valve body. When the valve core rotates after 90°, the valve body is in the later opening state. When the valve core rotates to a preset angle, the main fire air intake hole and the main fire outlet passage are first closed, and the secondary fire air outlet hole and the secondary fire outlet passage remain connected or the valve core fire protection hole and the fire protection hole passage remain connected, so that the cooking stove is in the fire protection state.

[0017] As a further improvement of the present utility model, it further includes a valve cover and a valve rod. The valve cover is connected to the valve body, and the valve rod passes through the valve cover and is connected to the valve core in a matching manner.

[0018] As a further improvement of the present utility model, one end of the valve core for connecting with the valve rod is provided with a spring cavity, a spring is installed in the spring cavity, and two ends of the spring are respectively abutted against the valve core and the valve rod.

[0019] Compared with the prior art, the present utility model has the following beneficial effects:

[0020] 1. Asynchronous switching of fire: When the valve core is in the 0° position, the sealing bus between the main fire air outlet hole and the main fire outlet passage is longer than the sealing bus between the secondary fire air outlet hole and the secondary fire outlet passage. As the valve core rotates, the secondary fire outlet passage and the main fire outlet passage switch fire / turn off fire asynchronously.

[0021] 2. Improve safety: During the startup process, first ignite the pilot flame (usually a smaller flame), which can ensure safe and reliable ignition; once the pilot flame is stable, then introduce the main flame, thus avoiding deflagration or unstable combustion phenomena that may be caused by directly igniting a large flame.

[0022] 3. Improve combustion stability: By gradually increasing the combustion amount, the temperature and pressure in the combustion chamber can be better controlled, thereby improving the combustion stability; the pilot flame can help preheat the combustion chamber and create better conditions for the stable combustion of the main flame.

[0023] 4. Energy-saving effect: When the maximum output power is not required, only using the pilot flame can meet the heating demand, thus saving energy; when higher heat output is needed, then turn on the main flame, so as to achieve heating on demand. Brief Description of the Drawings

[0024] Figure 1 is an exploded view of the asynchronous switch-fire cock valve of the present utility model;

[0025] Figure 2 is an air flow route diagram of the asynchronous switch-fire cock valve of the present utility model;

[0026] Figure 3 is a schematic diagram of the hole positions of the valve core and the valve body of the present utility model in the initial state;

[0027] Figure 4 is a schematic diagram of the hole positions of the valve core of the present utility model when it rotates in the first stage of air supply (≤90 degrees);

[0028] Figure 5 is a schematic diagram of the hole positions of the valve core of the present utility model when it rotates in the second stage of air supply (>90 degrees).

[0029] In the figures, 100, valve body; 110, first air inlet channel; 120, solenoid valve channel; 121, self-priming solenoid valve; 122, air outlet hole of the solenoid valve channel; 130, second air inlet channel; 140, main fire outlet channel; 150, pilot fire outlet channel; 170, valve core; 171, valve core air cavity; 172, main fire outlet hole; 173, pilot fire outlet hole; 174, valve core fire retention hole; 175, spring cavity; 176, spring; 180, fire retention hole channel; 190, valve cover; 200, valve rod. Detailed Embodiments

[0030] The following are specific embodiments of the present utility model and, in conjunction with the drawings, further describe the technical methods of the present utility model, but the present utility model is not limited to these embodiments.

[0031] As Figures 1-5 shown, the present utility model provides an asynchronous switch-fire cock valve, including:

[0032] A valve body 100 having a first air inlet passage 110, a solenoid valve passage 120, a second air inlet passage 130, a main flame outlet passage 140, and a secondary flame outlet passage 150;

[0033] A self-priming solenoid valve 121 disposed in the solenoid valve passage 120. The first air inlet passage 110 communicates with the solenoid valve passage 120. The self-priming solenoid valve 121 opens or cuts off the communication between the solenoid valve passage 120 and the second air inlet passage 130 by energizing or de-energizing.

[0034] A valve core 170 rotatably disposed in the valve body 100. The valve core 170 has a valve core air cavity 171, a main flame outlet hole 172, and a secondary flame outlet hole 173. The second air inlet passage 130 communicates with the valve core air cavity 171. Among them,

[0035] When the valve core 170 is in the 0° position, the sealing bus bar between the main flame outlet hole 172 and the main flame outlet passage 140 is longer than the sealing bus bar between the secondary flame outlet hole 173 and the secondary flame outlet passage 150. As the valve core 170 rotates, the secondary flame outlet passage 150 and the main flame passage fire / turn off asynchronously.

[0036] That is to say, for the cock valve provided in this embodiment, since the sealing bus bar between the main flame outlet hole 172 and the main flame outlet passage 140 is longer than the sealing bus bar between the secondary flame outlet hole 173 and the secondary flame outlet passage 150, during startup, when the secondary flame outlet passage 150 fires, there is still a sealing angle between the main flame outlet hole 172 and the main flame outlet passage 140, achieving the purpose of asynchronous firing. Such an asynchronous firing cock valve has at least the following advantages:

[0037] 1. Improve safety:

[0038] (1) During the startup process, first ignite the secondary fire (usually a smaller flame), which can ensure safe and reliable ignition;

[0039] (2) Once the secondary fire is stable, then introduce the main fire, which can avoid deflagration or unstable combustion phenomena that may be caused by directly igniting a large flame.

[0040] 2. Improve combustion stability:

[0041] (1) By gradually increasing the combustion amount, the temperature and pressure in the combustion chamber can be better controlled, thereby improving the combustion stability;

[0042] (2) The secondary fire can help preheat the combustion chamber and create better conditions for the stable combustion of the main fire.

[0043] 3. Energy-saving effect:

[0044] (1) When the maximum output power is not required, only the secondary flame can be used to meet the heating demand, which can save energy;

[0045] (2) When a higher heat output is needed, the main flame is then turned on to achieve heating on demand.

[0046] In addition, the solenoid valve in this embodiment is a self-priming solenoid valve 121. By simply energizing or de-energizing, the purpose of opening or cutting off the connection between the first intake passage 110 and the second intake passage 130 can be achieved, without the need for additional mechanical components to open the solenoid valve, such as the valve needle, lever, etc. in the prior art. Thus, materials are saved and costs are reduced.

[0047] Preferably, the main flame outlet passage 140 and the secondary flame outlet passage 150 are symmetrically arranged on both sides of the valve body 100, and the first intake passage 110 is located between the main flame outlet passage 140 and the secondary flame outlet passage 150.

[0048] Preferably, the solenoid valve passage 120 is located on the back of the valve body 100 and has a solenoid valve passage air outlet hole 122. The gas enters the solenoid valve passage 120 from the first intake passage 110. Specifically,

[0049] When the self-priming solenoid valve 121 is not energized, its piston closes the solenoid valve passage air outlet hole 122. At this time, the solenoid valve passage 120 is not connected to the second intake passage 130;

[0050] When the self-priming solenoid valve 121 is energized, its piston moves upward and opens the solenoid valve passage air outlet hole 122. At this time, the solenoid valve passage 120 is connected to the second intake passage 130, and the gas can enter the valve core air cavity 171 through the second intake passage 130.

[0051] Preferably, when the valve core 170 rotates between 0° and 90°, the valve body 100 is in the initial opening state. After opening the self-priming solenoid valve 121, as the valve core 170 rotates, the secondary flame outlet passage 150 fires first, and the main flame outlet passage 140 fires later. When the valve core 170 rotates to the point where the main flame outlet hole 172, the secondary flame outlet hole 173 are connected to the main flame outlet passage 140 and the secondary flame outlet passage 150, both the main flame outlet passage 140 and the secondary flame outlet passage 150 are in the firing state.

[0052] Preferably, the valve core 170 is also provided with a valve core flame-holding hole 174, and the valve body is also provided with a flame-holding hole passage 180. When the valve core 170 rotates after 90°, the valve body 100 is in the later opening state. When the valve core 170 rotates to a preset angle, the connection between the main flame intake hole and the main flame outlet passage 140 is closed first, and the secondary flame outlet hole 173 remains connected to the secondary flame outlet passage 150, or the valve core flame-holding hole 174 remains connected to the flame-holding hole passage 180, so that the cooking appliance is in the flame-holding state.

[0053] Preferably, it further includes a valve cover 190 and a valve stem 200. The valve cover 190 is connected to the valve body 100. The valve stem 200 passes through the valve cover 190 and is connected to the valve core 170 in a matching manner. The valve core 170 is driven by the valve stem 200 to rotate, so as to realize the control of the ignition and flameout of the main fire outlet channel 140 and the secondary fire outlet channel 150.

[0054] Preferably, a spring cavity 175 is provided at one end of the valve core 170 for connecting with the valve stem 200. A spring 176 is installed in the spring cavity 175. The two ends of the spring 176 are respectively abutted against the valve core 170 and the valve stem 200. On the one hand, the spring 176 plays a role in lifting the valve stem 200. After pressing down the valve stem 200, the child lock is opened and the valve stem 200 can rotate. On the other hand, the spring 176 can also keep the valve core 170 in a conical surface fitting and sealing state without air leakage.

[0055] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed by the above technical means, but also include the technical solutions composed of any combination of the above technical features. The above is the specific implementation manner of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches are also regarded as the protection scope of the present invention.

[0056] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0057] In addition, in the present invention, descriptions such as "first", "second", "one" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0058] In the present invention, unless otherwise clearly defined and limited, terms such as "connected" and "fixed" should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0059] In addition, the technical solutions between the various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

Claims

1. An asynchronous switch fire cock valve, characterized in that, Comprising: A valve body having a first air inlet passage, a solenoid valve passage, a second air inlet passage, a main flame outlet passage, and a secondary flame outlet passage; A self-priming solenoid valve disposed in the solenoid valve passage, the first air inlet passage communicating with the solenoid valve passage, the self-priming solenoid valve opening or cutting off the communication between the solenoid valve passage and the second air inlet passage by energization and de-energization; A valve core rotatably disposed in the valve body, the valve core having a valve core air cavity, a main flame outlet hole, and a secondary flame outlet hole, the second air inlet passage communicating with the valve core air cavity, wherein, When the valve core is in the 0° position, the sealing bus between the main flame outlet hole and the main flame outlet passage is longer than the sealing bus between the secondary flame outlet hole and the secondary flame outlet passage. As the valve core rotates, the secondary flame outlet passage and the main flame outlet passage fire / extinguish asynchronously.

2. The backless asynchronous switch or plug valve according to claim 1, characterized in that The main flame outlet passage and the secondary flame outlet passage are symmetrically disposed on both sides of the valve body, and the first air inlet passage is located between the main flame outlet passage and the secondary flame outlet passage.

3. An asynchronous switch fire cock valve according to claim 1, characterized in that, The solenoid valve passage is located at the back of the valve body and has a solenoid valve passage outlet hole.

4. The asynchronous switch fire cock according to claim 3, characterized in that, When the self-priming solenoid valve is not energized, its piston closes the solenoid valve passage outlet hole, and at this time the solenoid valve passage is not communicated with the second air inlet passage; When the self-priming solenoid valve is energized, its piston moves upward and opens the solenoid valve passage outlet hole, and at this time the solenoid valve passage is communicated with the second air inlet passage, and gas can enter the valve core air cavity through the second air inlet passage.

5. An asynchronous switch fire cock valve according to claim 1, characterized in that, When the valve core rotates between 0° and 90°, the valve body is in the initial opening state. After opening the self-priming solenoid valve, when the valve core rotates to a position where the main flame outlet hole, the secondary flame outlet hole are communicated with the main flame outlet passage and the secondary flame outlet passage, the main flame outlet passage and the secondary flame outlet passage fire.

6. The asynchronous switch fire cock valve according to claim 1, characterized in that, The valve core surface is also provided with a valve core flame-holding hole, and at the same time, a flame-holding hole passage is provided in the valve body. When the valve core rotates after 90°, the valve body is in the latter opening state. When the valve core rotates to a preset angle, the communication between the main flame air inlet hole and the main flame outlet passage is closed first, and the communication between the secondary flame air inlet hole and the secondary flame outlet passage remains connected or the communication between the valve core flame-holding hole and the flame-holding hole passage remains connected, so that the cooker is in the flame-holding state.

7. An asynchronous switch fire cock valve according to claim 1, characterized in that, It also includes a valve cover and a valve rod, the valve cover is connected to the valve body, and the valve rod passes through the valve cover and is connected to the valve core in a mating manner.

8. An asynchronous switch fire cock valve according to claim 7, characterized in that, One end of the valve core for connecting with the valve rod is provided with a spring cavity, a spring is installed in the spring cavity, and the two ends of the spring are respectively abutted against the valve core and the valve rod.

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