CN212360887U - Gas valve suitable for double gas sources and stove - Google Patents

Abstract

The utility model discloses a be suitable for gas valve of two air supplies, include: 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 utility model also discloses a cooking utensils, including the cooking utensils main part, dispose the foretell gas valve that is suitable for two air supplies in the cooking utensils main part. 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

Gas valve suitable for double gas sources and stove

Technical Field

The utility model relates to a kitchen cooking utensils field, especially a gas valve and cooking utensils that are suitable for two air supplies.

Background

At present, the existing gas cookers on the market can be divided into natural gas cookers and liquefied gas cookers according to the difference of the used gas sources, and the gas outlets of the gas valves used on the natural gas cookers and the liquefied gas cookers are different in size due to the difference of the oxygen consumption when the liquefied gas and the natural gas are combusted, so that the gas valves of the two gas cookers can not be used in a mixed manner. Enterprises produce two different gas valves, so that the production cost of the enterprises is greatly increased, and when the natural gas cooker and the liquefied gas cooker are assembled with improper gas valves, the gas of the gas cooker is not fully combusted, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a gas valve in the first aspect, according to the difference of the air supply, can switch over the first gas outlet group or the second gas outlet group and cooperate with the gas outlet to give vent to anger, therefore applicable natural gas or liquefied gas, application scope is wide; the utility model discloses the second aspect provides an adopt above-mentioned cooking utensils that are suitable for the gas valve of two air supplies, and then makes cooking utensils adaptable to natural gas or liquefied gas, and application scope is wide.

In order to solve the technical problem, the utility model discloses a following technical scheme:

according to the utility model discloses a gas valve suitable for two air supplies of some embodiments of first aspect includes: the valve comprises a valve body, a valve core cavity and a valve core, wherein the valve body is internally provided with a valve core cavity, and the side wall of the valve body is provided with an air inlet and an air outlet which are communicated with the valve core cavity; the valve core is rotatably arranged in the valve core cavity, a gas inlet channel communicated with the interior of the valve core cavity is formed in the valve core, a first gas outlet hole group and a second gas outlet hole group which can be matched with the gas outlet for use are arranged on the valve core, the first gas outlet hole group and the second gas outlet hole group are both communicated with the gas inlet channel, the motor is arranged on the valve main body, and an output shaft of the motor is connected with the valve core and can drive the valve core to rotate relative to the valve main body; and the control circuit is electrically connected with the motor and can control the motor to drive the valve core to rotate forwards or reversely.

The utility model discloses the gas valve that is suitable for two air supplies of some embodiments of the first aspect has following beneficial effect at least: through being provided with first gas outlet hole group and second gas outlet hole group on the case, the aperture of first gas outlet hole group and second gas outlet hole group can set up to the size that matches with natural gas and liquefied gas correspondingly to when making motor drive valve core rotate, the cooperation of changeable first gas outlet hole group or second gas outlet hole group and gas outlet is given vent to anger, and then make the gas valve applicable to natural gas or liquefied gas, application scope is wide, not only reduce the manufacturing cost of enterprise, and reduce the subsequent cost of changing the gas valve of user.

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

According to the utility model discloses some embodiments of first aspect still include touch switch, set up in the valve main part, be provided with the trigger piece on the touch switch, on the case or be provided with on the output shaft of motor can with the extruded article that the trigger piece contacted.

According to the utility model discloses some embodiments of first aspect, the one end of case is provided with and extends to the connecting end portion of case chamber outside, touch switch set up in the valve main part is close to connecting end portion's position department, demountable installation has the connecting piece that can follow its synchronous pivoted on the connecting end portion, set up on the connecting piece can with the connecting hole that the output shaft of motor is connected, the extruded article set up in on the connecting piece.

According to certain embodiments of the first aspect of the present invention, the valve body is provided with a stop valve capable of automatically closing the air inlet in case of power failure.

According to certain embodiments of the first aspect of the present invention, an opening has been opened to the one end of the spool chamber, the spool passes through the opening and enters into the inside of the spool chamber, the valve body is provided with a limiting mechanism for limiting the spool to exit from the inside of the spool chamber.

According to certain embodiments of the first aspect of the present invention, the gas outlet comprises an inner ring fire gas outlet and an outer ring fire gas outlet; the first air outlet hole group and the second air outlet hole group respectively comprise a plurality of inner ring fire air outlet holes which can be matched with the inner ring fire air outlet for use and a plurality of outer ring fire air outlet holes which can be matched with the outer ring fire air outlet for use.

According to the utility model discloses some embodiments of first aspect, two inner ring fire venthole mutually independent with inlet channel is linked together, one of them with inlet channel is linked together inner ring fire venthole is through many first ventiduces and all the other the inner ring fire ventiduct is established ties in proper order and is linked together the intercommunication, first ventiduct is connected in adjacent two the lateral wall department of inner ring fire ventiduct, many the cross sectional area of first ventiduct along the circumference of case reduces gradually.

According to the utility model discloses some embodiments of the first aspect, one of them outer ring fire venthole with inlet channel is linked together, and with inlet channel is linked together outer ring fire venthole through many second intercommunication air flues with all the other outer ring fire venthole is established ties in proper order and is linked together the intercommunication, second intercommunication air flue is connected in adjacent two the lateral wall department of outer ring fire venthole, many the cross sectional area of second intercommunication air flue along the circumference of case reduces gradually.

A cooking appliance in accordance with certain embodiments of the second aspect of the present invention comprises a cooking appliance main body, wherein the above-mentioned gas valve suitable for dual gas sources is configured on the cooking appliance main body.

The utility model discloses cooking utensils of some embodiments of second aspect have following beneficial effect at least: the gas valve suitable for the double gas sources is adopted by the cooker, so that the cooker can be suitable for natural gas or liquefied gas, the gas sources suitable for the cooker are various, and the subsequent maintenance cost of the cooker is reduced.

Drawings

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

FIG. 1 is a schematic structural diagram of a gas valve adapted for use with dual gas sources in certain implementations of the first aspect of the present invention;

FIG. 2 is a partially exploded schematic view of the gas valve shown in FIG. 1 adapted for use with dual gas supplies;

FIG. 3 is a sectional view showing the internal structure of the gas valve for a dual gas supply shown in FIG. 1;

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

FIG. 5 is a detail view of the valve cartridge of the gas valve shown in FIG. 1 adapted for use with dual gas supplies;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

fig. 7 is a cross-sectional view taken along line B-B of fig. 5.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are three or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. The description of first, second, etc. if any, is for the purpose of distinguishing between technical features and not intended to indicate or imply relative importance or implicitly indicate a number of indicated technical features or implicitly indicate a precedence relationship of indicated technical features.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 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 main body 100, a valve core cavity 110 is provided inside the valve main body 100, a gas inlet 120 and a gas outlet 130 both communicated with the valve core cavity 110 are provided on a side wall of the valve main body 100, a valve core 200 is rotatably installed in the valve core cavity 110, a gas inlet channel 210 communicated with the inside of the valve core cavity 110 is provided on the valve core 200, a first gas outlet hole group 201 and a second gas outlet hole group 202 capable of being used in cooperation with the gas outlet 130 are provided on the valve core 200, one of the first gas outlet hole group 201 and the second gas outlet hole group 202 can be set to be suitable for natural gas, and the other can be set to be suitable for; in some embodiments of the first aspect of the present invention, the first outlet set 201 and the second outlet set 202 comprise five identical outlet holes 203, that is, the second outlet set 202 comprises five outlet holes 203, and the first outlet set 201 also comprises five outlet holes 203, while the first outlet set 201 also comprises five outlet holes 203 of the second outlet set 202, it is conceivable that the number of outlet holes 203 comprised in the first outlet set 201 and the second outlet set 202 may be determined according to actual needs, and not to limit the specific amount.

The valve body 100 is provided with a motor 300, the motor 300 is detachably mounted on the valve body 100, and specifically, the motor 300 is locked on the valve body 100 by screws; it is envisioned that the motor 300 may be non-detachable from the valve body 100, such as by welding the motor 300 to the valve body 100, as may be desired. An output shaft of the motor 300 is connected to the valve body 200 and drives the valve body 100 to rotate relative to the valve body 200; the motor 300 is electrically connected to a control circuit (not shown), and the control circuit can control the motor 300 to drive the valve plug 200 to rotate forward or backward.

Through be provided with first gas outlet hole group 201 and second gas outlet hole group 202 on case 200, the aperture of first gas outlet hole group 201 and second gas outlet hole group 202 can be set up to the size that matches with natural gas and liquefied gas correspondingly, thereby when making motor 300 drive case 200 rotate, changeable first gas outlet hole group 201 or second gas outlet hole group 202 and gas outlet 130 cooperate and give vent to anger, and then make the gas valve applicable to natural gas or liquefied gas, application scope is wide, not only reduce the manufacturing cost of enterprise, and reduce the subsequent cost of changing the gas valve of user.

Referring to fig. 2 and 3, in order to improve the accuracy with which the motor 300 drives the valve element 200 to rotate, in certain embodiments of the first aspect of the present invention, the motor 300 is a stepper motor. Through adopting step motor to drive case 200 and rotate, can control case 200 pivoted angle accurately, and then adjust the size of giving vent to anger of gas valve accurately, motor 300 adopts step motor moreover, can avoid the influence of the high temperature that cooking utensils work produced to motor 300, disturbs still less.

Referring to fig. 2 and 3, in order to facilitate the control circuit to better sense the position where the valve core 200 rotates, in some embodiments of the first aspect of the present invention, the gas valve further includes a touch switch 400, the touch switch 400 is disposed on the valve main 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 capable of contacting with the trigger piece 410. The touch switch 400 is electrically connected to the control circuit, when the valve element 200 is driven by the motor 300 to rotate, and the extrusion piece 500 on the valve element 200 or on the output shaft of the motor 300 extrudes the trigger piece 410, the touch switch 400 can feed back a signal to the control circuit, and the control circuit can sense that the valve element 200 or the motor 300 is at an "original point" position, wherein the "original point" position belongs to a virtual position and is equivalent to the starting point of the rotation of the valve element 200. After the control circuit senses that the valve element 200 or the motor 300 is at the "original point" position, the control circuit can control the motor 300 to drive the valve element 200 to rotate by a corresponding angle according to an input instruction of a user, so that the first air outlet hole group 201 or the second air outlet hole group 202 is switched to be matched with the air outlet 130 to give air or the air outlet size of the air outlet 130 is adjusted, and the use is more convenient.

In order to make the assembly production of gas valve more simple and convenient, in some embodiments of the first aspect of the present invention, one end of the valve core 200 is provided with the connecting end portion 230 extending to the outside of the valve core chamber 110, the touch switch 400 is disposed at the position of the valve main body 100 adjacent to the connecting end portion 230, the connecting end portion 230 is detachably mounted with a connecting member 510 capable of following the connecting member to rotate synchronously, the connecting member 510 is provided with a connecting hole 511 capable of being connected with 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 disposed on the connecting member 510. Specifically, a latch 520 and a latch 231 are disposed between the connecting end 230 and the connecting member 510, and one of the latch 520 and the latch 231 is disposed on the connecting end 230, and the other is disposed on the connecting member 510. When the latch 520 is disposed on the connection end 230, the slot 231 is disposed on the connection member 510; if the fixture block 520 is disposed on the connecting member 510, the fixture groove 231 is disposed on the connecting end 230, which may be determined according to actual requirements.

To facilitate production of extrusion 500 and connecting member 510, in certain embodiments of the first aspect of the present invention, extrusion 500 is of unitary construction with connecting member 510. Can adopt injection moulding's mode to obtain extruded article 500 and connecting piece 510, simple convenient and fast.

Referring to fig. 2 and 3, in order to ensure the air tightness of the gas valve, in some embodiments of the first aspect of the present invention, an opening is opened at one end of the valve core chamber 110, the valve core 200 passes through the opening and enters the inside of the valve core chamber 110, a limiting mechanism for limiting the valve core 200 to withdraw from the inside of the valve core chamber 110 is disposed on the valve main body 100, specifically, the limiting mechanism includes a mounting seat 140 disposed on the valve main body 100, the mounting seat 140 is disposed at one end of the valve main body 100 adjacent to the opening of the valve core chamber 110, an elastic member 260 is sleeved on the connecting end 230 of the valve core 200, one end of the elastic member 260 abuts against the valve core 200, the other end abuts against the mounting seat 140, the elastic member 260 can apply force on the valve core 200 and push the valve core 200 to be embedded into the valve core chamber 110, so that the fit between the valve core 200 and the valve core chamber 110 is tighter, thereby, even when the user removes the motor 300, the airtightness of the gas valve is not affected. When the motor 300 is damaged, the user can remove and replace the new motor 300 without affecting the airtightness of the gas valve. The 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 fig. 1, 3, 5, 6 and 7, in order to allow the gas valve to be used with a burner having an inner ring flame gas passage and an outer ring flame gas passage, in certain embodiments of the first aspect of the present invention, the gas outlet 130 comprises an inner ring flame gas outlet 131 and an outer ring flame gas outlet 132; each of first outlet set 201 and second outlet set 202 includes a plurality of inner ring fire outlet holes 221 that can be used in cooperation with inner ring fire outlet 131 and a plurality of outer ring fire outlet holes 222 that can be used in cooperation with outer ring fire outlet 132. Through adopting foretell structure for the gas valve of this embodiment can supply gas in inside ring fire air flue and the outer ring fire air flue correspondingly, and the structure is simpler, convenient to use.

Referring to fig. 5 and 6, further, in order to avoid that the fuel gas directly passes through the inner ring fire air outlet 221 from the air inlet channel 210 and is injected into the inner ring fire air outlet 131, in some embodiments of the first aspect of the present invention, two inner ring fire air outlets 221 are independently communicated with the air channel 210, one of the inner ring fire air outlets 221 communicated with the air inlet channel 210 is sequentially communicated with the rest of the inner ring fire air outlets 221 in series through a plurality of first communicating channels 240, the first communicating channels 240 are connected to the side walls of the two adjacent inner ring fire air outlets 221, and the cross-sectional areas of the plurality of first communicating channels 240 are gradually reduced along the circumferential direction of the valve core 200. Through adopting foretell structure, can make most gas enter into in the inner ring fire venthole 221 through first air channel 240, avoid the gas directly to pass inner ring fire venthole 221 and spray to in the inner ring fire gas outlet 131 in air inlet channel 210, consequently, when the valve core 200 is rotated and gas valve output gas size is adjusted, can make the change of gas more smooth-going, thereby make the cooking utensils that adopt the gas valve of this embodiment when adjusting the inner ring fire size, the change of inner ring fire is more smooth-going, violent change can not appear, guarantee safety.

Referring to fig. 5 and 7, in order to make the gas output from the outer ring fire 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 222 is communicated with the gas inlet channel 210, and the outer ring fire outlet 222 communicated with the gas inlet channel 210 is sequentially communicated with the other outer ring fire outlets 222 in series through a plurality of second communicating gas channels 250, the second communicating gas channels 250 are connected to the side walls of two adjacent outer ring fire outlets 222, and the cross-sectional areas of the plurality of second communicating gas channels 250 are gradually reduced along the circumferential direction of the valve core 200. Through adopting foretell structure for the gas of exporting from outer ring fire gas outlet 132 is more smooth-going, thereby makes the cooking utensils that adopt the gas valve of this embodiment when adjusting outer ring fire size, and the change of outer ring fire is more smooth-going, can not appear violently changing, guarantees safety.

Referring to fig. 1 to 3, in order to ensure safety, a stop valve 150 capable of controlling the opening and closing of the gas inlet 120 is disposed on the valve main body 100, the stop valve 150 is electrically connected to the control circuit, and when the kitchen range is abnormal, the stop valve 150 can close the gas inlet 120, thereby preventing the kitchen range from gas leakage. The shut-off valve 150 may be a solenoid valve that is normally closed when the power is off.

In some embodiments of the second aspect of the present invention, the gas cooker includes a cooker main body (not shown), and the cooker main body is configured with the above-mentioned gas valve suitable for dual gas sources.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A gas valve suitable for double gas sources is characterized by comprising:

the valve core cavity (110) is formed in the valve main body (100), and an air inlet (120) and an air outlet (130) which are communicated with the valve core cavity (110) are formed in the side wall of the valve main body (100);

the valve core (200) is rotatably arranged in the valve core cavity (110), an air inlet channel (210) communicated with the interior of the valve core cavity (110) is formed in the valve core (200), a first air outlet hole group (201) and a second air outlet hole group (202) which can be matched with the air outlet (130) for use are arranged on the valve core (200), the first air outlet hole group (201) and the second air outlet hole group (202) are both communicated with the air inlet channel (210),

the motor (300) is arranged on the valve main body (100), and an 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);

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 in the forward direction or the reverse direction.

2. A gas valve adapted for use with dual gas sources as claimed in claim 1, wherein:

the motor (300) is a stepping motor.

3. A gas valve adapted for use with dual gas sources as claimed in claim 2, wherein:

the valve also comprises a touch switch (400) arranged on the valve main body (100), a trigger piece (410) is arranged on the touch switch (400),

an extrusion piece (500) capable of contacting with the trigger piece (410) is arranged on the valve core (200) or the output shaft of the motor (300).

4. A gas valve adapted to dual gas sources as claimed in claim 3,

one end of the valve core (200) is provided with a connecting end part (230) extending to the outside of the valve core cavity (110),

the touch switch (400) is disposed at a position of the valve body (100) adjacent to the connection end portion (230),

the connecting end part (230) is detachably provided with a connecting piece (510) capable of rotating synchronously along with the connecting piece, the connecting piece (510) is provided with a connecting hole (511) capable of being connected with an output shaft of the motor (300), and the extrusion piece (500) is arranged on the connecting piece (510).

5. A gas valve adapted for use with dual gas sources as claimed in claim 1, wherein:

the valve main body (100) is provided with a stop valve (150) capable of automatically closing the air inlet (120) in case of power failure.

6. A gas valve adapted for use with dual gas sources as claimed in claim 1, wherein:

one end of the valve core cavity (110) is provided with an opening, the valve core (200) passes through the opening and enters the interior of the valve core cavity (110),

the valve body (100) is provided with a limiting mechanism for limiting the valve core (200) to withdraw from the valve core cavity (110).

7. A gas valve adapted for use with dual gas sources as claimed in claim 1, wherein:

the air outlet (130) comprises an inner ring fire air outlet (131) and an outer ring fire air outlet (132);

the first air outlet hole group (201) and the second air outlet hole group (202) respectively comprise a plurality of inner ring fire air outlet holes (221) which can be matched with the inner ring fire air outlets (131) for use and a plurality of outer ring fire air outlet holes (222) which can be matched with the outer ring fire air outlets (132) for use.

8. A gas valve adapted for use with dual gas sources as claimed in claim 7, wherein:

the two inner ring fire air outlet holes (221) are mutually independently communicated with the air inlet channel (210),

one of the inner ring fire air outlet holes (221) communicated with the air inlet channel (210) is sequentially communicated with the rest of the inner ring fire air outlet holes (221) in series through a plurality of first connecting air channels (240), the first connecting air channels (240) are connected to the side walls of the two adjacent inner ring fire air outlet holes (221),

the cross-sectional areas of the first communication passages (240) are gradually reduced along the circumferential direction of the valve core (200).

9. The gas valve adapted to dual gas sources as recited in claim 7,

one of the outer ring fire air outlet holes (222) is communicated with the air inlet channel (210), the outer ring fire air outlet holes (222) communicated with the air inlet channel (210) are sequentially communicated with the rest of the outer ring fire air outlet holes (222) in series through a plurality of second communication air passages (250), the second communication air passages (250) are connected to the side walls of the two adjacent outer ring fire air outlet holes (222), and the cross-sectional areas of the second communication air passages (250) are gradually reduced along the circumferential direction of the valve core (200).

10. A gas cooker is characterized in that a gas cooker body,

the dual-gas-source-suitable gas valve comprises a cooker main body, wherein the cooker main body is provided with the dual-gas-source-suitable gas valve as claimed in any one of claims 1 to 9.

Images