CN111550577A - A gas valve and cooker suitable for dual gas sources - Google Patents

Abstract

The invention discloses a gas valve suitable for double gas sources, which comprises: the valve body is internally provided with a valve core cavity, and the side wall of the valve body is provided with an air outlet; the gas valve comprises a valve core, a motor, a first gas outlet hole group, a second gas outlet hole group and a second gas outlet hole group, wherein the valve core is provided with the first gas outlet hole group and the second gas outlet hole group which can be matched with a gas outlet; and the control circuit is electrically connected with the motor. The aperture of the first gas outlet hole group and the aperture of the second gas outlet hole group can be correspondingly set to be matched with natural gas and liquefied gas, so that when the valve core is driven by the motor to rotate, the first gas outlet hole group or the second gas outlet hole group can be switched to be matched with the gas outlet to discharge gas, and the gas valve can be suitable for natural gas or liquefied gas. The invention also discloses a cooker which comprises a cooker main body, wherein the cooker main body is provided with the gas valve suitable for the double gas sources. And further, the cooker can be suitable for natural gas or liquefied gas, so that the gas sources suitable for the cooker are various, and the subsequent maintenance cost of the cooker is reduced.

Description

A gas valve and cooker suitable for dual gas sources

technical field

The invention relates to the field of kitchen cookers, in particular to a gas valve and a cooker suitable for dual gas sources.

Background technique

At present, the existing gas cookers on the market can be divided into natural gas cookers and liquefied gas cookers according to the different gas sources used. Due to the difference in the amount of oxygen consumed when liquefied gas and natural gas are burned, the gas valves used on natural gas cookers and liquefied gas cookers are The size of the gas outlet is different, so the gas valves of the two gas cookers cannot be used together. The production of two different gas valves by the enterprise greatly increases the production cost of the enterprise, and when the natural gas cooker and the liquefied gas cooker are equipped with inappropriate gas valves, the gas combustion of the gas cooker will not only be insufficient, but also there will be potential safety hazards.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the first aspect of the present invention provides a gas valve. According to different gas sources, the first gas outlet group or the second gas outlet group can be switched to cooperate with the gas outlet to discharge gas, so it can be applied to natural gas or liquefied gas, and has a wide range of applications. The second aspect of the present invention provides a cooker using the above-mentioned gas valve suitable for dual gas sources, so that the cooker can be applied to natural gas or liquefied gas, and has a wide range of applications.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

According to some embodiments of the first aspect of the present invention, a gas valve suitable for dual gas sources includes: a valve main body, a valve core cavity is opened inside, and a side wall of the valve main body is provided with a valve core that is both compatible with the valve core The air inlet and the air outlet communicated with the cavity; the valve core is rotatably installed in the valve core cavity, and the valve core is provided with an air intake channel that communicates with the inside of the valve core cavity, and the valve core The core is provided with a first air outlet group and a second air outlet group that can be used in cooperation with the air outlet, and both the first air outlet group and the second air outlet group are communicated with the air inlet passage, a motor, arranged on the valve body, the output shaft of the motor is connected with the valve core and can drive the valve core to rotate relative to the valve body; a control circuit, the control circuit is electrically connected to the motor connected, the control circuit can control the motor to drive the valve core to rotate forward or backward.

The gas valve suitable for dual gas sources according to some embodiments of the first aspect of the present invention has at least the following beneficial effects: by arranging the first gas outlet group and the second gas outlet hole group on the valve core, the first gas outlet hole group and the second gas outlet hole group The aperture of the second air outlet group can be set to match the size of natural gas and liquefied gas, so that when the motor drives the valve core to rotate, the first air outlet group or the second air outlet group can be switched to cooperate with the air outlet to discharge air, thereby making the The gas valve can be applied to natural gas or liquefied gas, and has a wide range of applications, which not only reduces the production cost of the enterprise, but also reduces the cost of subsequent replacement of the gas valve by the user.

According to some embodiments of the first aspect of the present invention, the motor is a stepper motor.

Some embodiments according to the first aspect of the present invention further include a touch switch disposed on the valve body, a trigger sheet is disposed on the touch switch, the valve core or the output shaft of the motor A pressing piece that can be in contact with the trigger sheet is provided.

According to some embodiments of the first aspect of the present invention, one end of the valve core is provided with a connection end extending to the outside of the valve core cavity, and the touch switch is provided on the valve body adjacent to the connection end At the position of , the connecting end is detachably installed with a connecting piece that can rotate synchronously with it, the connecting piece is provided with a connecting hole that can be connected with the output shaft of the motor, and the extruding piece is provided with on the connector.

According to some embodiments of the first aspect of the present invention, the valve body is provided with a shut-off valve capable of automatically closing the air inlet when power is turned off.

According to some embodiments of the first aspect of the present invention, one end of the valve core cavity is provided with an opening, the valve core passes through the opening and enters into the inside of the valve core cavity, and the valve body is provided with a A limiting mechanism for restricting the withdrawal of the valve core from the interior of the valve core cavity.

According to some embodiments of the first aspect of the present invention, the air outlet includes an inner ring air outlet and an outer ring air outlet; the first air outlet group and the second air outlet group each include a plurality of The inner ring fire outlet is paired with the inner ring fire outlet and a plurality of outer ring fire outlet which can be used in cooperation with the outer ring fire outlet.

According to some embodiments of the first aspect of the present invention, two of the inner ring fire outlet holes communicate with the air inlet passage independently of each other, and one of the inner ring fire outlet holes communicated with the air inlet passage The air holes are connected in series with the rest of the inner ring fire outlet holes in turn through a plurality of first communication air passages, and the first communication air passages are connected to the side walls of the two adjacent inner ring fire outlet holes, and many The cross-sectional area of the first communication air passage is gradually reduced along the circumferential direction of the valve core.

According to some embodiments of the first aspect of the present invention, one of the outer ring fire vents communicates with the intake passage, and the outer ring fire vents communicated with the intake passage pass through a plurality of The second communication air passage is connected in series with the remaining outer ring fire outlet holes in sequence, the second communication air passage is connected to the side walls of the two adjacent outer ring fire outlet holes, and a plurality of the first air outlet holes are connected in series. The cross-sectional area of the two communicating air passages gradually decreases along the circumferential direction of the valve core.

According to some embodiments of the second aspect of the present invention, a cooker includes a cooktop body, and the cooktop body is provided with the above-mentioned gas valve suitable for dual gas sources.

The cooker according to some embodiments of the second aspect of the present invention has at least the following beneficial effects: by using the above-mentioned gas valve suitable for dual gas sources, the cooker can be applied to natural gas or liquefied gas, not only making the cooker applicable to various gas sources , and reduce the follow-up maintenance cost of the cooker.

Description of drawings

The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

1 is a schematic diagram of the appearance structure of a gas valve suitable for dual gas sources in some implementations of the first aspect of the present invention;

Fig. 2 is the partial structure exploded schematic diagram of the gas valve suitable for dual gas sources shown in Fig. 1;

3 is a cross-sectional view of the internal structure of the gas valve suitable for dual gas sources shown in FIG. 1;

4 is a schematic structural diagram of the valve core, the first gas outlet group and the second gas outlet group in the gas valve suitable for dual gas sources shown in FIG. 1;

Fig. 5 is the part diagram of the valve core in the gas valve suitable for dual gas sources shown in Fig. 1;

Figure 6 is a cross-sectional view along line A-A in Figure 5;

FIG. 7 is a cross-sectional view taken along line B-B in FIG. 5 .

Detailed ways

This part will describe the specific embodiments of the present invention in detail, and the preferred embodiments of the present invention are shown in the accompanying drawings. Each technical feature and overall technical solution of the invention should not be construed as limiting the protection scope of the invention.

In the description of the present invention, it should be understood that the azimuth description, such as the azimuth or position relationship indicated by up, down, front, rear, left, right, etc., is based on the azimuth or position relationship shown in the drawings, only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, the meaning of several is one or more, the meaning of multiple is three or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first, second, etc. are only used for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features or implicitly indicating the indicated technical features. successive relationship.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

Referring to FIGS. 1 to 4 , a gas valve suitable for dual gas sources according to some embodiments of the first aspect of the present invention includes a valve body 100 , a valve core cavity 110 is opened inside the valve body 100 , and a side of the valve body 100 is opened. The wall is provided with an air inlet 120 and an air outlet 130 which are both communicated with the spool cavity 110 , the spool 200 is rotatably installed in the spool cavity 110 , and the spool 200 is provided with a connection with the interior of the spool cavity 110 The valve core 200 is provided with a first air outlet group 201 and a second air outlet group 202 that can be used in conjunction with the air outlet 130, and one of the first air outlet group 201 and the second air outlet group 202. It can be set to be suitable for natural gas, and the other group can be set to be suitable for liquefied gas; the first gas outlet group 201 and the second gas outlet hole group 202 are both communicated with the air inlet passage 210, and the first gas outlet hole group 201 and the second gas outlet hole group 201 and the second The air outlet group 202 includes a plurality of air outlet holes 203. The air outlet holes of the first air outlet group 201 and the air outlet holes of the second air outlet group 202 can be completely different, or the first air outlet group 201 and the second air outlet group 202. 4, in some embodiments of the first aspect of the present invention, the first air outlet group 201 and the second air outlet group 202 include five identical air outlet holes 203, namely The second air outlet group 202 includes five air outlets 203, and the first air outlet group 201 also includes five air outlets 203 in the second air outlet group 202. It is conceivable that the first air outlet group 201 The number of the air outlet holes 203 included in the second air outlet hole group 202 can be determined according to actual needs, and the specific number is not limited.

The valve main body 100 is provided with a motor 300, and the motor 300 is detachably installed on the valve main body 100. Specifically, the motor 300 is locked on the valve main body 100 by screws; it is conceivable that the motor 300 can also be arranged to be connected to the valve main body 100. The main body 100 cannot be disassembled. For example, the motor 300 and the valve main body 100 are welded together by welding, which may depend on actual needs. The output shaft of the motor 300 is connected with the valve core 200 and can drive the valve core 200 to rotate relative to the valve main body 100; Rotate forward or reverse.

By providing the first air outlet group 201 and the second air outlet group 202 on the valve core 200, the apertures of the first air outlet group 201 and the second air outlet group 202 can be correspondingly set to match the size of natural gas and liquefied gas , so that when the motor 300 drives the valve core 200 to rotate, the first air outlet group 201 or the second air outlet group 202 can be switched to cooperate with the air outlet 130 to discharge gas, so that the gas valve can be suitable for natural gas or liquefied gas, and has a wide range of applications. It not only reduces the production cost of the enterprise, but also reduces the cost of subsequent replacement of the gas valve by the user.

2 and 3, in order to improve the precision of the motor 300 driving the valve core 200 to rotate, in some embodiments of the first aspect of the present invention, the motor 300 is a stepping motor. By using a stepping motor to drive the valve core 200 to rotate, the rotation angle of the valve core 200 can be precisely controlled, thereby accurately adjusting the gas outlet size of the gas valve, and the motor 300 adopts a stepping motor, which can avoid the high temperature generated by the operation of the cooker from affecting the motor 300. impact with less interference.

2 and 3, in order to facilitate the control circuit to better perceive the position where the valve core 200 rotates, the gas valve in some embodiments of the first aspect of the present invention further includes a touch switch 400, and the touch switch 400 is set On the valve body 100 , the touch switch 400 is provided with a trigger piece 410 , and the valve core 200 or the output shaft of the motor 300 is provided with an extrusion piece 500 that can contact the trigger piece 410 . The touch switch 400 is electrically connected to the control circuit. When the motor 300 drives the valve core 200 to rotate, when the valve core 200 or the extrusion member 500 of the output shaft of the motor 300 is pressed against the trigger piece 410, the touch switch 400 is A signal can be fed back to the control circuit, and the control circuit can sense that the valve core 200 or the motor 300 is at the "origin" position, which is a virtual position, which is equivalent to the starting point of the valve core 200's rotation. After the control circuit senses that the valve core 200 or the motor 300 is at the "origin" position, the control circuit can control the motor 300 to drive the valve core 200 to rotate by a corresponding angle according to the user's input command, so as to switch the first air outlet group 201 or the second air outlet. The group 202 cooperates with the air outlet 130 to discharge air or adjusts the air outlet size of the air outlet 130, which is more convenient to use.

In order to make the assembly and production of the gas valve simpler and more convenient, in some embodiments of the first aspect of the present invention, one end of the valve core 200 is provided with a connecting end portion 230 extending to the outside of the valve core cavity 110 , and the touch switch 400 is provided at the At the position of the valve main body 100 adjacent to the connecting end 230 , the connecting end 230 is detachably mounted with a connecting piece 510 that can rotate synchronously with the connecting piece 510 . The connecting piece 510 is provided with a connecting hole 511 that can be connected to the output shaft of the motor 300 . , the output shaft of the motor 300 is inserted into the connecting hole 511 , and the extrusion member 500 is arranged on the connecting member 510 . Specifically, a clamping block 520 and a clamping slot 231 are arranged between the connecting end 230 and the connecting piece 510 to be engaged with each other. One of the clamping block 520 and the clamping slot 231 is arranged on the connecting end 230 , and the other is arranged on the connecting end 230 . on the connector 510. That is, when the clamping block 520 is disposed on the connecting end 230, the clamping slot 231 is disposed on the connecting member 510; if the clamping block 520 is disposed on the connecting member 510, the clamping groove 231 is disposed on the connecting end 230. According to actual needs.

In order to facilitate the production of the extrusion part 500 and the connecting part 510 , in some embodiments of the first aspect of the present invention, the extrusion part 500 and the connecting part 510 are integral structures. The extrusion part 500 and the connecting part 510 can be obtained by injection molding, which is simple, convenient and quick.

2 and 3, in order to ensure the gas tightness of the gas valve, in some embodiments of the first aspect of the present invention, one end of the valve core cavity 110 is provided with an opening, and the valve core 200 passes through the opening and enters the valve core Inside the cavity 110 , the valve body 100 is provided with a limit mechanism for restricting the valve core 200 to exit from the inside of the valve core cavity 110 . The seat 140 is disposed at one end of the valve body 100 adjacent to the opening of the valve core cavity 110 , an elastic piece 260 is sleeved on the connecting end 230 of the valve core 200 , one end of the elastic piece 260 abuts with the valve core 200 , and the other end The seat 140 is in contact with each other, and the elastic member 260 can exert force on the valve core 200 and push the valve core 200 to be embedded in the valve core cavity 110, so that the cooperation between the valve core 200 and the valve core cavity 110 is tighter, preventing air leakage and ensuring The airtightness of the gas valve in this embodiment does not affect the airtightness of the gas valve even when the user removes the motor 300 . When the motor 300 is damaged, the user can disassemble and replace the new motor 300 without affecting the air tightness of the gas valve. The above-mentioned elastic member 240 may be a compression spring, or the elastic member 240 may be an elastic column made of rubber or silicone.

Referring to Figure 1, Figure 3, Figure 5, Figure 6 and Figure 7, in order to enable the gas valve to be matched with a burner having an inner ring fire gas channel and an outer ring fire gas channel, in some embodiments of the first aspect of the present invention , the air outlet 130 includes an inner ring air outlet 131 and an outer ring air outlet 132; the first air outlet group 201 and the second air outlet group 202 each include a plurality of inner ring air outlets that can be paired with the inner ring air outlet 131. The air outlet hole 221 and a plurality of outer ring fire air outlet holes 222 that can cooperate with the outer ring fire air outlet 132 are provided. By adopting the above structure, the gas valve of this embodiment can supply gas to the inner ring fire gas channel and the outer ring fire gas channel correspondingly, the structure is simpler, and the use is convenient.

5 and 6 , further, in order to prevent gas from directly passing through the inner ring fire outlet 221 from the air inlet passage 210 and being injected into the inner ring fire outlet 131, in some embodiments of the first aspect of the present invention , the two inner ring fire outlet holes 221 communicate with the air passage 210 independently of each other, and one of the inner ring fire outlet holes 221 communicated with the air inlet passage 210 communicates with the rest of the inner ring fire outlet through a plurality of first communication air passages 240 The air outlet holes 221 are connected in series in sequence, the first communication air passages 240 are connected to the side walls of the two adjacent inner ring fire air outlet holes 221 , and the cross-sectional areas of the plurality of first communication air passages 240 are along the circumferential direction of the valve core 200 . gradually shrink. By adopting the above structure, most of the gas can enter into the inner ring fire outlet hole 221 through the first communication air passage 240, so as to prevent the gas from being directly injected from the air inlet passage 210 through the inner ring fire outlet hole 221. into the gas outlet 131 of the inner ring fire, therefore, when the valve core 200 is rotated to adjust the output gas size of the gas valve, the change of the gas can be made smoother, so that the cooker using the gas valve of this embodiment adjusts the size of the inner ring fire. The change of the inner ring fire is smoother, and there will be no drastic changes, ensuring safety.

Referring to FIGS. 5 and 7 , in order to make the gas output from the outer ring gas outlet 132 of the gas valve smoother, in some embodiments of the first aspect of the present invention, one of the outer ring fire outlet holes 222 is connected to the air inlet passage. 210 is connected, and the outer ring fire outlet 222 communicated with the air inlet passage 210 is connected in series with the remaining outer ring fire outlet holes 222 through a plurality of second communication air passages 250, and the second communication air passages 250 are connected to the phase. At the side walls of the two adjacent outer ring fire outlet holes 222 , the cross-sectional areas of the plurality of second communication air passages 250 gradually decrease along the circumferential direction of the valve core 200 . By adopting the above structure, the gas output from the gas outlet 132 of the outer ring fire is more smooth, so that when the cooker using the gas valve of this embodiment adjusts the size of the outer ring fire, the change of the outer ring fire is more smooth, and no There are drastic changes to ensure safety.

1 to 3 , in order to ensure safety, the valve body 100 is provided with a shut-off valve 150 that can control the opening and closing of the air inlet 120. The shut-off valve 150 is electrically connected to the control circuit. When the cooker is abnormal, the shut-off valve 150 can be closed. The air inlet 120, thereby preventing the gas leakage problem of the cooker. The above-mentioned shut-off valve 150 may be a solenoid valve that is normally closed when power is turned off.

A gas cooker in some embodiments of the second aspect of the present invention includes a cooktop body (not shown in the figure), and the cooktop body is provided with the above-mentioned gas valve suitable for dual gas sources.

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the technical field, various modifications can be made without departing from the purpose of the present invention. kind of change.

Claims (10)

1. A gas valve suitable for dual gas sources, characterized in that, comprising: The valve main body (100) is provided with a valve core cavity (110) inside, and the side wall of the valve main body (100) is provided with an air inlet (120) and an outlet port (120) which are all communicated with the valve core cavity (110). Air port (130); The valve core (200) is rotatably installed in the valve core cavity (110), and the valve core (200) is provided with an intake passage (210) that communicates with the inside of the valve core cavity (110). , the valve core (200) is provided with a first air outlet group (201) and a second air outlet group (202) that can be used in conjunction with the air outlet (130), the first air outlet group (201) ) and the second air outlet group (202) communicate with the air intake passage (210), A motor (300) is provided on the valve body (100), the output shaft of the motor (300) is connected with the valve core (200) and can drive the valve core (200) to face the valve body (100) Rotate; A control circuit, the control circuit is electrically connected with the motor (300), and the control circuit can control the motor (300) to drive the valve core (200) to rotate forward or reversely. 2. The gas valve suitable for dual gas sources according to claim 1, characterized in that: The motor (300) is a stepping motor. 3. The gas valve suitable for dual gas sources according to claim 2, characterized in that: It also includes a touch switch (400), which is arranged on the valve body (100), and a trigger piece (410) is arranged on the touch switch (400), The valve core (200) or the output shaft of the motor (300) is provided with a pressing member (500) capable of contacting the triggering piece (410). 4. The gas valve suitable for dual gas sources according to claim 3, characterized in that, One end of the valve core (200) is provided with a connecting end portion (230) extending to the outside of the valve core cavity (110), The touch switch (400) is arranged at a position of the valve body (100) adjacent to the connection end (230), The connecting end (230) is detachably mounted with a connecting piece (510) that can rotate synchronously with the connecting piece (510), and a connection that can be connected to the output shaft of the motor (300) is provided on the connecting piece (510). A hole (511), the extrusion member (500) is arranged on the connecting member (510). 5. The gas valve suitable for dual gas sources according to claim 1, characterized in that: The valve body (100) is provided with a shut-off valve (150) capable of automatically closing the air inlet (120) when power is turned off. 6. The gas valve suitable for dual gas sources according to claim 1, characterized in that: One end of the valve core cavity (110) is provided with an opening, the valve core (200) passes through the opening and enters the inside of the valve core cavity (110), The valve main body (100) is provided with a limiting mechanism for restricting the valve core (200) to withdraw from the inside of the valve core cavity (110). 7. The gas valve suitable for dual gas sources according to claim 1, wherein: The air outlet (130) includes an inner ring fire air outlet (131) and an outer ring fire air outlet (132); Both the first air outlet group (201) and the second air outlet group (202) include a plurality of inner ring air outlet holes (221) and a plurality of inner ring air outlet holes (221) that can be paired with the inner ring air outlet (131). an outer ring fire outlet (222) that can be used in cooperation with the outer ring fire outlet (132). 8. The gas valve suitable for dual gas sources according to claim 7, characterized in that: The two inner ring fire outlet holes (221) communicate with the air inlet passage (210) independently of each other, One of the inner ring fire outlet holes (221) communicated with the air inlet passage (210) is connected in series with the other inner ring fire outlet holes (221) in sequence through a plurality of first communication air passages (240) connected, the first communication air passage (240) is connected to the side walls of the two adjacent inner ring gas outlet holes (221), The cross-sectional areas of the plurality of first communication air passages (240) gradually decrease along the circumferential direction of the valve core (200). 9. The gas valve suitable for dual gas sources according to claim 7, characterized in that: One of the outer ring fire outlet holes (222) communicates with the air inlet passage (210), and the outer ring fire outlet hole (222) communicated with the air inlet passage (210) passes through a plurality of The second communication air passages (250) are connected in series with the remaining outer ring fire outlet holes (222) in sequence, and the second communication air passages (250) are connected to two adjacent outer ring fire outlet holes (222). 222), the cross-sectional areas of the plurality of second communication air passages (250) gradually decrease along the circumferential direction of the valve core (200). 10. A gas cooker, characterized in that: The main body of the cooker is provided with a gas valve suitable for dual gas sources according to any one of claims 1 to 9.

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