WO2022160470A1 - 旋塞阀和燃气灶 - Google Patents

旋塞阀和燃气灶 Download PDF

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Publication number
WO2022160470A1
WO2022160470A1 PCT/CN2021/087585 CN2021087585W WO2022160470A1 WO 2022160470 A1 WO2022160470 A1 WO 2022160470A1 CN 2021087585 W CN2021087585 W CN 2021087585W WO 2022160470 A1 WO2022160470 A1 WO 2022160470A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
switch
transmission gear
gear
plug valve
Prior art date
Application number
PCT/CN2021/087585
Other languages
English (en)
French (fr)
Inventor
戚正胜
Original Assignee
佛山市顺德区美的洗涤电器制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 佛山市顺德区美的洗涤电器制造有限公司 filed Critical 佛山市顺德区美的洗涤电器制造有限公司
Priority to EP21881349.1A priority Critical patent/EP4063735A4/en
Publication of WO2022160470A1 publication Critical patent/WO2022160470A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/05Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
    • F16K31/055Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation for rotating valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00Stoves or ranges for gaseous fuels
    • F24C3/12Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/041Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
    • F16K31/043Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/53Mechanical actuating means with toothed gearing
    • F16K31/535Mechanical actuating means with toothed gearing for rotating valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025Electrical or magnetic means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08Details
    • F16K5/10Means for additional adjustment of the rate of flow
    • F16K5/103Means for additional adjustment of the rate of flow specially adapted for gas valves
    • F16K5/106Means for additional adjustment of the rate of flow specially adapted for gas valves with pilot flame
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00Feeding or distributing other fuel to combustion apparatus
    • F23K5/002Gaseous fuel
    • F23K5/007Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00Stoves or ranges for gaseous fuels
    • F24C3/10Arrangement or mounting of ignition devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00Stoves or ranges for gaseous fuels
    • F24C3/12Arrangement or mounting of control or safety devices
    • F24C3/126Arrangement or mounting of control or safety devices on ranges
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2400/00Pretreatment and supply of gaseous fuel
    • F23K2400/20Supply line arrangements
    • F23K2400/201Control devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2900/00Special features of, or arrangements for fuel supplies
    • F23K2900/05002Valves for gaseous fuel supply lines

Definitions

  • the present application relates to the field of gas appliances, in particular to a plug valve and a gas stove.
  • the fire power is mainly adjusted by manually rotating the knob on the gas stove, so when the fire power needs to be adjusted, manual operation is required, which is troublesome.
  • manual operation is required, which is troublesome.
  • the user in the process of cooking porridge and soup, it is basically impossible for the user to stay in the kitchen all the time. Due to the long cooking time, when the user leaves the kitchen, it is easy to forget the time to adjust the fire or even forget that he is cooking. In a large state, it may cause boils, etc.
  • the time of the user to deal with other affairs will be wasted, which is very inconvenient for the user to use.
  • the main purpose of this application is to propose a plug valve, which aims to increase user selectivity and facilitate the use of users.
  • the gas stove proposed in this application includes:
  • valve stem mounted on the valve seat
  • a switch mounted on the valve seat, the switch is electrically connected with the driving mechanism
  • the plug valve has an automatic fire adjustment mode and a manual fire adjustment mode.
  • the switch When the switch is triggered by rotating the valve stem, the plug valve switches to the automatic fire adjustment mode.
  • the valve seat includes a valve body and a mounting seat, the valve stem is mounted on the valve body, and both the switch and the driving mechanism are mounted on the mounting seat.
  • valve body by additionally providing a mounting seat on the valve body for the installation of the drive mechanism and the switch, it is beneficial to simplify the structure of the valve body, facilitate the manufacture and molding of the valve body, and reduce the cost of the valve body.
  • the mounting seat is provided with a mounting hole, and the valve rod is mounted on the valve body through the mounting hole.
  • the mounting hole is equivalent to making the mounting hole as the positioning reference on the mounting seat, which can facilitate the positioning and installation of the drive mechanism and the switch, and is beneficial to improve the assembly accuracy of the drive mechanism and the switch.
  • the mounting seat is provided with a mounting convex ring on the periphery of the mounting hole, and the mounting convex ring is provided on the peripheral side of the valve stem.
  • This arrangement is equivalent to increasing the length of the installation hole, which can better limit the deflection of the valve stem and improve the stability of the valve stem when it rotates.
  • the mounting convex ring is provided with an escape hole, and the switch is protruded into the mounting convex ring from the escape hole to cooperate with the valve stem.
  • This arrangement can avoid excessive reduction of the structure of the mounting convex ring, and can reduce the impact of the opening of the escape hole on the structural strength of the mounting convex ring compared with the method of providing a gap, so that the mounting convex ring maintains a high structural strength.
  • the plug valve includes an ignition switch
  • the installation convex ring is provided with an escape notch
  • the ignition switch extends into the installation convex ring from the escape notch to cooperate with the valve stem.
  • the avoidance gap can be formed, which reduces the subsequent process of additionally processing the avoidance gap, and is beneficial to reducing the production cost of the mounting seat.
  • the escape notch and the escape hole are respectively disposed on two opposite sides of the mounting convex ring.
  • the ignition switch and the switch switch can be prevented from interfering with each other on the mounting seat, and the valve stem can also be prevented from interfering with the matching positions of the ignition switch and the switch switch respectively, so as to ensure the reliability of the plug valve.
  • the outer peripheral ring of the valve stem is provided with a trigger groove
  • the ignition switch is a micro switch
  • the contact pressure part of the ignition switch extends into the trigger groove, so as to be under the valve stem.
  • this can reduce the radial dimension of the valve stem, thereby reducing the occupied space of the valve stem, and making the structure of the plug valve more compact.
  • the mounting seat is provided with a first limiting groove, and the switch is provided in the first limiting groove; and/or, the mounting seat is provided with a second limiting groove, so The ignition switch is arranged in the second limiting groove.
  • the first limit slot can initially limit the switch, which is beneficial to reduce the number of screws used to fix the switch.
  • one screw can be used to match the first limit. position slot, the switch can be stably installed on the mounting seat.
  • the second limit slot can initially limit the ignition switch, which is beneficial to reduce the number of screws used to fix the ignition switch.
  • one screw can be used to match the second limit slot. , you can stably install the ignition switch on the mount.
  • the drive mechanism includes a motor provided on the mounting seat, a transmission gear provided on the motor shaft, and a connection gear provided on the valve stem, the transmission gear and the connection gear drive connect.
  • the structure is simple, the transmission is reliable, and the cost of the plug valve can be reduced.
  • the plug valve further includes a controller and a control switch, the controller is electrically connected to the control switch and the motor, the control switch is mounted on the mounting seat, and the motor drives the When the transmission gear rotates, the transmission gear triggers the control switch intermittently, and the controller is configured to calculate the rotation angle of the valve stem according to the number of times the control switch is triggered.
  • the user When in use, the user can control the motor to drive the valve stem to rotate according to the preset program through the controller, so that the firepower of the gas stove can be automatically adjusted. Therefore, when the user uses the gas stove for cooking, the number of operations on the gas stove can be reduced and the situation of manually adjusting the firepower of the gas stove can be reduced, which makes it more convenient for the user to use the gas stove for cooking, and greatly improves the convenience of the user.
  • the transmission gear includes a wheel body, a transmission gear segment and a vacant segment sequentially arranged in the circumferential direction of the wheel body, and the wheel body is connected to the rotating shaft of the motor and is connected to the automatic ignition.
  • the transmission gear segment meshes with the connection gear intermittently, and in the manual ignition mode, the idle segment faces the connection gear.
  • the gas stove can still be started by manually rotating the valve stem, avoiding the failure of the gas stove to be used normally due to motor failure or power failure. happening.
  • control switch is a micro switch and is disposed on the peripheral side of the transmission gear.
  • the transmission gear segment triggers the control switch intermittently.
  • the transmission gear segment to trigger the control switch in this way, additional triggering structures can be avoided on the transmission gear, the structure of the transmission gear can be simplified, and the assembly process of the plug valve can be reduced.
  • the connecting gear is located on the mounting seat at one end of the mounting convex ring away from the valve body, the mounting seat is further protruded with a support portion along the protruding direction of the mounting convex ring, the The motor is fixed on the side of the support portion facing the valve body, the motor is passed through the support portion, the transmission gear is located on the surface of the support portion away from the valve body, and is connected with the connection gear mesh.
  • the transmission gear and the connecting gear can be roughly in the same plane to ensure that the transmission gear and the connecting gear can mesh well, so that the length of the motor shaft can be reduced, and the possibility of bending and deformation of the motor shaft during the rotation of the transmission gear can be reduced.
  • the rotational stability of the connecting gear is better.
  • the plug valve further includes a controller and a wireless communication module, the controller is electrically connected to the wireless communication module and the driving mechanism, and the wireless communication module is used for communication connection with an external terminal to Receiving a control instruction sent by an external terminal, the controller is configured to control the driving mechanism to drive the valve stem to rotate according to the control instruction.
  • the user when the user needs to adjust the firepower of the gas stove or needs to turn off the fire during the cooking process, he only needs to send the corresponding control command to the gas stove through the external terminal, and the user does not need to enter the kitchen to operate the gas stove, which is very convenient and convenient.
  • the user can adjust the fire power of the gas stove and turn off the fire, which improves the convenience of the user.
  • the plug valve further includes a controller and a temperature sensor, the controller is electrically connected to the temperature sensor and the driving mechanism, the temperature sensor is used to detect the appliance temperature of the cooking appliance, and the control The device is also used for controlling the driving mechanism to drive the valve stem to rotate according to the temperature of the device.
  • the temperature of the cooking utensil can be detected in real time through the temperature sensor, so that the controller can control the driving mechanism to drive the valve rod to the target fire power level according to the preset program and the temperature of the utensil.
  • the accuracy of the fire mode is not limited to the preset program.
  • the present application also proposes a gas cooker, including a cooktop body and the above-mentioned stopcock valve, wherein the stopcock valve is provided on the cooktop body.
  • the technical solution of the present application is to provide a driving mechanism and a switch on the plug valve, and drivingly connect the driving mechanism to the valve rod, so that the valve rod can be driven to rotate by the driving mechanism, so that the manual fire adjustment mode can be increased through the driving mechanism.
  • the automatic fire adjustment mode that drives the valve stem to rotate to adjust the fire power allows the user to adjust the fire power manually or select the mode to automatically adjust the fire power, which increases the user's selectivity and facilitates the user to switch between various cooking methods. use.
  • FIG. 1 is a schematic structural diagram of a plug valve in an embodiment of the gas stove of the application
  • Fig. 2 is an exploded view of the plug valve in Fig. 1;
  • Fig. 3 is the structural representation of the mounting seat in Fig. 2;
  • Fig. 4 is the structural representation of the valve stem in Fig. 2;
  • Fig. 5 is the structural representation of the transmission gear and the connecting gear in Fig. 2;
  • FIG. 6 is a schematic structural diagram of a transmission gear and a connecting gear in another embodiment of the plug valve of the present application.
  • the directional indications are only used to explain the relationship between the various components in a certain posture If the specific posture changes, the directional indication also changes accordingly.
  • the present application proposes a plug valve, which is used in a gas stove.
  • the plug valve 10 includes a valve seat 11, a valve stem 12, a drive mechanism and a switch 14, the valve stem 12 is mounted on the valve seat 11, and the drive mechanism is mounted on the valve seat 11, and the drive mechanism is drivingly connected to the valve stem 12.
  • the changeover switch 14 is attached to the valve seat 11, and the changeover switch 14 is electrically connected to the drive mechanism.
  • the plug valve 10 has an automatic fire adjustment mode and a manual fire adjustment mode. When the switch 14 is triggered by rotating the valve stem 12, the plug valve 10 is switched to the automatic fire adjustment mode.
  • the plug valve 10 further includes a controller, and the controller is electrically connected to the switch 14 and the driving mechanism.
  • the plug valve 10 has a closed gear and a preset fire power gear after rotating by a preset angle, and the valve stem 12 rotates to a preset position.
  • the valve rod 12 triggers the switch 14 to switch the plug valve 10 to the automatic fire adjustment mode.
  • the controller can control the driving mechanism to drive the valve rod 12 to rotate to adjust the fire power.
  • ignition is achieved during the rotation of the valve rod 12 from the closed gear to the preset fire power gear.
  • the ignition process can be completed when the valve rod 12 rotates away from the closed gear.
  • the controller can detect that the switch 14 is triggered, so that the plug valve 10 is switched to the automatic fire adjustment mode, and then the drive is controlled according to the preset program.
  • the mechanism drives the valve stem 12 to rotate to the target fire power gear, so as to realize the function of automatically adjusting the fire power.
  • valve rod 12 can be manually adjusted to rotate to the preset firepower gear, or an external terminal can send a start command to the controller, and the controller can control the drive mechanism to drive the valve rod 12 to rotate to the preset firepower gear.
  • the ignition can be manually operated or electrically controlled.
  • the plug valve 10 may not be provided with a controller.
  • a driving mechanism and a switch 14 are provided on the plug valve 10, and the driving mechanism is drivingly connected to the valve rod 12, so that the valve rod 12 can be driven to rotate by the driving mechanism, so that the manual fire adjustment mode can be used on the basis of
  • the automatic fire adjustment mode that adjusts the fire power by driving the valve stem 12 to rotate by the driving mechanism is added, so that the user can adjust the fire power manually or select the mode of automatic fire power adjustment, which increases the user's selectivity and makes it easier for the user to adjust the fire power in multiple Switch between cooking methods.
  • the valve seat 11 includes a valve body 110 and a mounting seat 111
  • the valve stem 12 is mounted on the valve body 110
  • the switch 14 and the driving mechanism are both mounted on the mounting seat 111 .
  • the valve body 110 needs to be provided with a ventilation channel and other structures, the structure of the valve body 110 is relatively complicated. Therefore, by additionally providing a mounting seat 111 on the valve body 110 for the installation of the drive mechanism and the switch 14 , it is beneficial to simplify the structure of the valve body 110 , it is convenient to manufacture and form the valve body 110 and reduce the cost of the valve body 110 .
  • the mounting seat 111 and the valve body 110 can be detachably connected, for example, the mounting seat 111 can be fixed to the valve body 110 by screws, or the mounting seat 111 can be welded to the valve body 110 and so on.
  • the changeover switch 14 and the driving mechanism may also be mounted on the valve body 110 .
  • the mounting seat 111 is provided with a mounting hole, and the valve stem 12 is mounted on the valve body 110 through the mounting hole. Specifically, both the drive mechanism and the switch 14 need to cooperate with the valve stem 12 .
  • the positioning reference can facilitate the positioning and installation of the drive mechanism and the switch 14 , and is beneficial to improve the assembly accuracy of the drive mechanism and the switch 14 .
  • the mounting seat 111 can also be provided on the side of the valve stem 12 .
  • the mounting seat 111 is provided with a mounting convex ring 112 on the periphery of the mounting hole, and the mounting convex ring 112 is disposed around the periphery of the valve stem 12 .
  • the mounting convex ring 112 is provided on the surface of the mounting seat 111 away from the valve body 110 , and the valve stem 12 partially extends into the mounting convex ring 112 , which is equivalent to increasing the length of the mounting hole and can better restrict the valve The rod 12 is deflected, improving the stability of the valve rod 12 as it rotates.
  • the mounting convex ring 112 may not be provided.
  • the plug valve 10 includes an ignition switch 13
  • the installation convex ring 112 is provided with an escape notch 113
  • the ignition switch 13 extends into the installation convex ring 112 from the escape notch 113 to cooperate with the valve stem 12 .
  • the mounting convex ring 112 and the mounting seat 111 are integrally formed, and the avoidance notch 113 penetrates through the end surface of the mounting convex ring 112 . In this way, when the mounting seat 111 is formed, the avoidance gap 113 can be formed, which reduces the subsequent processing of the avoidance gap 113 . This process is beneficial to reduce the production cost of the mounting seat 111 .
  • an avoidance through hole may also be provided on the installation convex ring 112 , and the ignition switch 13 extends into the installation convex ring 112 from the avoidance through hole to cooperate with the valve stem 12 .
  • the installation convex ring 112 is provided with a vacant hole 114 , and the switch 14 extends into the installation convex ring 112 from the vacant hole 114 to cooperate with the valve stem 12 .
  • the escape hole 114 is spaced from the escape notch 113 , and the escape hole 114 is spaced from the end face of the mounting convex ring 112 .
  • This arrangement can avoid excessive reduction of the structure of the mounting convex ring 112 . In this way, the influence of the opening of the escape hole 114 on the structural strength of the mounting convex ring 112 can be reduced, so that the mounting convex ring 112 can maintain a high structural strength.
  • the installation convex ring 112 can also be provided with a vacant notch 122 , and the switch 14 can extend into the installation convex ring 112 from the vacated notch 122 to cooperate with the valve stem 12 .
  • the avoidance notch 113 and the escape hole 114 are respectively disposed on two opposite sides of the mounting convex ring 112 . That is to say, the switch 14 and the ignition switch 13 are respectively arranged on two opposite sides of the mounting convex ring 112, so that the ignition switch 13 and the switch 14 can be prevented from interfering with each other on the mounting seat 111, and the valve stem 12 can also be prevented from being connected with the ignition switches 13, 13 and 14 respectively.
  • the matching positions of the switch 14 interfere with each other to ensure the reliability of the plug valve 10 .
  • the avoidance notch 113 and the escape hole 114 may also be provided on the same side of the mounting convex ring 112 and so on.
  • the ignition switch 13 is a micro switch. Specifically, the ignition switch 13 may be a normally closed micro switch or a normally open micro switch. Such a simple structure is beneficial to simplify the structure of the plug valve 10 . Of course, in other embodiments, the ignition switch 13 may also be a photoelectric sensor or a Hall sensor or the like.
  • a trigger groove 121 is provided on the outer circumference of the valve stem 12 , and the contact pressure portion of the ignition switch 13 extends into the trigger groove 121 , so that when the valve stem 12 is pressed down, the trigger groove 121 is triggered.
  • the upper groove wall of the groove 121 activates the ignition switch 13 .
  • the radial dimension of the valve stem 12 can be reduced in this way, thereby reducing the occupied space of the valve stem 12 and making the structure of the plug valve 10 smaller. more compact.
  • an annular protrusion may also be protruded on the outer peripheral surface of the valve stem 12, so as to trigger the ignition switch 13 through the annular protrusion.
  • the switch 14 is a micro switch. Specifically, the switch 14 may be a normally closed microswitch or a normally open microswitch.
  • the valve rod 12 is provided with a gap 122. During the process of the valve rod 12 being rotated from the closed position to the preset fire power position, the contact pressure portion of the switch 14 abuts on the outer peripheral surface of the valve rod 12, so that the switch 14 is in the position of the valve rod 12.
  • a convex portion can also be provided on the outer peripheral surface of the valve rod 12, when the valve rod 12 rotates to the preset fire power level, the switch 14 is switched from the open state to the closed state.
  • the switch 14 can also be a photoelectric sensor or a Hall sensor and the like.
  • the switch 14 is fixed to the mounting base 111 by screws, so that the structure is simple and the fixing is firm.
  • a snap-fit structure may also be provided on the mounting seat 111, and the switch 14 is snap-fitted to the mounting seat 111 through the snap-fit structure.
  • the mounting base 111 is provided with a first limiting groove 115
  • the switch 14 is provided in the first limiting groove 115 .
  • the first limit slot 115 can limit the rotation of the switch 14 on the mounting base 111 , that is, when the switch 14 is installed in the first limit slot 115 , the first limit slot 115 can limit the rotation of the switch 14 to the switch 14 .
  • Preliminary positioning is beneficial to reduce the number of screws for fixing the switch 14 .
  • the switch 14 can be stably installed on the mounting base 111 by matching one screw with the first limiting groove 115 .
  • the first limiting groove 115 may not be provided, and the switch 14 may be fixed to the mounting seat 111 by at least two screws.
  • the mounting base 111 is provided with a first positioning post 117
  • the switch 14 is provided with a first positioning hole.
  • the first positioning post 117 is inserted into the first positioning hole , so that the switch 14 can be positioned, and the translation of the switch 14 on the mounting seat 111 can be restricted.
  • the first positioning post 117 can be provided in the first limiting groove 115 .
  • the ignition switch 13 can be fixed in various ways.
  • the ignition switch 13 is fixed to the mounting seat 111 by screws, so that the structure is simple and the fixing is firm.
  • a snap-fit structure may also be provided on the mounting seat 111, and the ignition switch 13 is snap-fitted to the mounting seat 111 and the like through the snap-fit structure.
  • the mounting seat 111 is provided with a second limiting groove 116 , and the ignition switch 13 is provided in the second limiting groove 116 .
  • the second limit groove 116 can restrict the ignition switch 13 from rotating on the mounting seat 111 , that is, when the ignition switch 13 is installed in the second limit groove 116 , the second limit groove 116 can prevent the ignition switch 13 from rotating.
  • Preliminary positioning is beneficial to reduce the number of screws for fixing the ignition switch 13 .
  • the ignition switch 13 can be stably installed on the mounting seat 111 by matching one screw with the second limiting groove 116 .
  • the second limiting groove 116 may not be provided, and the ignition switch 13 may be fixed to the mounting seat 111 by at least two screws.
  • the mounting seat 111 is provided with a second positioning post 118
  • the ignition switch 13 is provided with a second positioning hole.
  • the second positioning post 118 is inserted into the second positioning hole , so that the ignition switch 13 can be positioned and the translation of the ignition switch 13 on the mounting seat 111 can be restricted.
  • the second positioning post 118 may be provided in the second limiting groove 116 .
  • the preset firepower gear is the minimum firepower gear.
  • the valve rod 12 rotates counterclockwise when it rotates from the closed gear to the minimum thermal power gear, and the minimum thermal power gear is the maximum angle at which the valve rod 12 rotates. Therefore, when the preset firepower gear is set to the minimum firepower gear, it is convenient for the user to determine the position of the preset firepower gear, so as to facilitate the user to manually rotate the valve rod 12 to the preset firepower gear.
  • the motor 21 may not immediately drive the valve rod 12 to rotate to the target fire power gear. Rapid rise, causing ingredients to burn in the cookware.
  • the preset thermal power level to the minimum thermal power level, the heating speed of the cooking utensil can be slowed down, and the risk of the ingredients in the cooking utensil being scorched due to the rapid temperature rise can be reduced.
  • the preset firepower gear may also be set to other firepower gears.
  • the driving mechanism includes a motor 21 arranged on the mounting seat 111 , a transmission gear 22 arranged on the rotating shaft of the motor 21 , and a connecting gear 23 arranged on the valve stem 12 .
  • the structure is simple, the transmission is reliable, and the cost of the plug valve 10 can be reduced. Of course, in other embodiments, other transmission modes may also be used.
  • the plug valve 10 further includes a control switch 15, the controller is electrically connected to the control switch 15 and the motor 21, the control switch 15 is mounted on the mounting seat 111, and the motor 21 drives the transmission gear 22 During rotation, the transmission gear 22 triggers the control switch 15 intermittently, and the controller is used to calculate the rotation angle of the valve stem 12 according to the triggering times of the control switch 15 .
  • the controller controls the motor 21 to drive the transmission gear 22 to rotate in the first direction
  • the firepower gear of the plug valve 10 increases by one gear
  • the controller controls the motor 21 to drive the transmission gear
  • the first direction is opposite to the second direction. That is, the first direction and the second direction are opposite circumferential directions, and the following description takes the first direction as the counterclockwise direction as an example, but is not limited to this.
  • the first direction is counterclockwise
  • the second direction is clockwise.
  • the controller can control the motor 21 to drive the transmission gear 22 to rotate, and then the transmission gear 22 drives the connecting gear 23 and the valve stem 12 to rotate.
  • the motor 21 is controlled by the controller to drive the transmission gear 22 to rotate in the first direction
  • the motor 21 is controlled by the controller to drive the transmission gear 22 to rotate in the second direction
  • each time the transmission gear 22 triggers the control switch 15 it means that the valve stem 12 rotates in the opposite direction by a certain angle, thereby reducing the fire power level of the plug valve 10. one file.
  • the controller controls the motor 21 to stop rotating. That is, in the process of automatic fire adjustment, the valve rod 12 rotates between the maximum fire power gear and the minimum fire power gear. Since the transmission gear 22 cannot be displaced, when the control switch 15 is triggered by the rotation of the transmission gear 22, the detection accuracy of the control switch 15 can be ensured, and the accuracy of the automatic ignition mode can be ensured.
  • the transmission gear 22 can trigger the control switch 15 intermittently. the corresponding firepower level. That is, when the user is in use, the controller can control the motor 21 to drive the valve stem 12 to rotate according to the preset program, so that the firepower of the gas stove can be automatically adjusted. Therefore, when the user uses the gas stove for cooking, the number of operations on the gas stove can be reduced and the situation of manually adjusting the firepower of the gas stove can be reduced, which makes it more convenient for the user to use the gas stove for cooking, and greatly improves the convenience of the user.
  • the single-chip microcomputer controls the generation of the stepping pulse of the stepping motor 21 through the timer, and the time resolution of the timer is limited, so the step
  • the running speed adjustment of the feeding motor 21 is discrete, resulting in discontinuous torque between various speeds, and due to inertia and torque, it is easy to lose steps, so it is difficult for the motor 21 to rotate according to the preset number of steps, and the control accuracy is poor , poor practicality.
  • the technical solution of the present application can avoid the problem of poor practicability caused by the stepper motor 21 being easily out of step or unable to rotate according to the preset number of steps.
  • 21 can use either a stepper motor 21 or a DC motor 21, which has little restriction and can be flexibly configured.
  • the technical solution of the present application can add electric control mechanisms such as a motor 21, a connecting gear 23, and a transmission gear 22 on the basis of the conventional plug valve 10, and does not require additional gas pipeline structure, which reduces the difficulty of the installation process and the risk of gas leakage. Affect the original installation process and gas path installation process of the gas stove.
  • the gas stove of this scheme is consistent with the commonly used small bottom case gas stove, so users do not need to enlarge the installation hole for installing the gas stove when using the gas stove of this scheme, which reduces the resistance of the customer to replace the gas stove, thereby reducing the The sales threshold of the gas stove in this scheme is raised, which is conducive to enhancing the market competitiveness.
  • the minimum firepower gear is the position where the valve rod 12 rotates counterclockwise from the closing gear to 270°
  • the maximum firepower gear of the gas stove is the valve rod 12 rotates counterclockwise from the closing gear to 90° or 180° ° position.
  • more firepower gears can be set between the minimum firepower gear and the maximum firepower gear, which can improve the accuracy of firepower adjustment.
  • the minimum firepower gear and the maximum firepower gear may also be in other positions.
  • the transmission gear 22 includes a wheel body 221 , a transmission gear segment 222 and a vacant segment 224 arranged in sequence on the circumferential direction of the wheel body 221 , and the wheel body 221 is connected to the motor.
  • the rotating shaft of 21 in the automatic fire adjustment mode, when the motor 21 drives the transmission gear 22 to rotate, the transmission tooth segment 222 intermittently meshes with the connection gear 23 , and in the manual fire adjustment mode, the empty segment 224 faces the connection gear 23 .
  • the transmission tooth segment 222 is provided with meshing teeth 223, so that in the automatic fire adjustment mode, the meshing teeth 223 can mesh with the connecting gear 23, thereby driving the connecting gear 23 to rotate.
  • the idle segment 224 is not provided with meshing teeth 223, so when the idle segment 224 faces the connecting gear 23, the connecting gear 23 is spaced apart from the meshing teeth 223 of the transmission gear segment 222, so that the transmission gear 22 and the connection gear 23 are independent of each other. That is, in the automatic ignition mode, when the transmission gear 22 rotates until the transmission gear segment 222 meshes with the connection gear 23, it can drive the connection gear 23 to rotate, and when the transmission gear 22 rotates to the idle segment 224 facing the connection gear 23, The transmission gear 22 will not drive the connecting gear 23 to rotate.
  • the transmission tooth segment 222 can intermittently mesh with the connecting gear 23, so as to drive the connecting gear 23 and the valve stem 12 to rotate, so that electric control can be realized.
  • the valve stem 12 rotates to adjust the fire power.
  • the motor 21 drives the transmission gear 22 to rotate until the idle segment 224 faces the connecting gear 23 , the motor 21 can be controlled to stop rotating, so that the transmission gear 22 keeps the idle segment 224 facing the connection gear 23 .
  • the plug valve 10 in this solution can not only realize automatic adjustment of the fire power by electrically adjusting the rotation of the valve stem 12, but also avoid the situation that the gas stove cannot be used normally due to the failure of the motor 21 or power failure.
  • the control switch 15 may also be a photoelectric sensor or a Hall sensor or the like.
  • the transmission gear 22 may not be provided with the vacant section 224 .
  • the control switch 15 is a micro switch and is disposed on the peripheral side of the transmission gear 22 .
  • the transmission gear segment 222 triggers the control switch 15 intermittently. That is to say, the meshing teeth 223 of the transmission gear segment 222 can trigger the control switch 15 .
  • a trigger structure for triggering the control switch 15 may be additionally provided on the transmission gear 22.
  • one or more trigger structures may be provided on the transmission gear 22, and multiple trigger structures may be provided. When there are multiple, triggering structures are distributed at intervals along the circumferential direction of the transmission gear 22 .
  • the transmission gear 22 has various structures.
  • the transmission gear 22 includes a plurality of transmission tooth segments 222 and a plurality of idle segments 224 , and a plurality of transmission tooth segments 222 and a plurality of The vacant segments 224 are alternately distributed in the circumferential direction of the wheel body 221 . That is, the transmission tooth segment 222 is provided with at least two transmission tooth segments 222 and at least two empty segments 224 , which is equivalent to that the wheel body 221 is provided with a plurality of transmission tooth segments 222 , and the plurality of transmission tooth segments 222 are arranged in the circumferential direction of the wheel body 221 .
  • a vacant segment 224 is formed between two adjacent transmission tooth segments 222 in the circumferential direction of the wheel body 221 .
  • the connecting gear 23 is spaced apart from the meshing teeth 223 of the transmission tooth segment 222 .
  • the number of drive tooth segments 222 may be two, three, four, five or more, and so on.
  • the transmission gear 22 When the transmission gear 22 continues to rotate, the transmission tooth segment 222 is not meshed with the connecting gear 23), can reduce energy waste when the transmission gear 22 is in an idling state, and is beneficial to saving energy.
  • the control switch 15 In the embodiment in which the control switch 15 is triggered by the transmission gear segment 222 , under the condition of the same rotation angle of the transmission gear 22 , when multiple transmission gear segments 222 are provided, the triggering times of the control switch 15 can be increased, so that the fire power adjustment is more accurate.
  • the plurality of transmission tooth segments 222 are evenly spaced in the circumferential direction of the wheel body 221 , and the plurality of vacant segments 224 are also evenly distributed in the circumferential direction of the wheel body 221 . interval distribution.
  • the drive gear 22 includes a drive tooth segment 222 and a dummy segment 224 . That is, a transmission gear segment 222 and an empty segment 224 are sequentially arranged in the circumferential direction of the wheel body 221 , so that the structure of the transmission gear 22 is relatively simple.
  • the arc lengths of the transmission tooth segment 222 and the idle segment 224 in the circumferential direction of the wheel body 221 may be the same or different.
  • the transmission tooth segment 222 is provided with a plurality of meshing teeth 223 , and the meshing teeth 223 are sequentially distributed along the circumferential direction of the wheel body 221 . That is, each transmission tooth segment 222 is provided with at least two meshing teeth 223, so that in the process of the transmission gear 22 rotating until the transmission tooth segment 222 meshes with the connecting gear 23, the angle of driving the connecting gear 23 and the valve stem 12 to rotate is relatively large. , so that the rotation angle of the valve stem 12 when the motor 21 drives the transmission gear 22 for one rotation can be increased, so that the valve stem 12 rotates faster and can quickly rotate to the target fire gear.
  • the number of meshing teeth 223 of the transmission tooth segment 222 may be two, three, four or more and so on.
  • the transmission tooth segment 222 may also be provided with a meshing tooth 223 . In this way, the structure of the transmission gear 22 is relatively simple.
  • the connecting gear 23 and the transmission gear 22 are both cylindrical gears.
  • the connecting gear 23 and the transmission gear 22 are both spur gears.
  • the connecting gear 23 and the transmission gear 22 may also be helical spur gears or other types of spur gears.
  • the connecting gear 23 and the transmission gear 22 are both bevel gears.
  • the connecting gear 23 and the transmission gear 22 are both straight bevel gears.
  • the connecting gear 23 and the transmission gear 22 may also be helical bevel gears or other types of bevel gears.
  • the axis of the motor 21 is disposed parallel to the valve stem 12 (refer to FIG. 2 ). That is to say, the axis of the motor 21 and the valve stem 12 are parallel to each other, and are arranged approximately in parallel, so that the space occupied by the motor 21 in the radial direction of the connecting gear 23 can be reduced, and the size of the plug valve 10 in the radial direction of the connecting gear 23 can be reduced, so that the cock The structure of the valve 10 is more compact.
  • the axis of the motor 21 intersects the valve stem 12 . That is, the included angle between the extension direction of the axis of the motor 21 and the extension direction of the valve stem 12 can be a right angle or an acute angle, so that the motor 21 is installed along the radial direction of the connecting gear 23, which can reduce the amount of the motor 21 in the valve stem.
  • the occupied space in the length direction of the valve stem 12 is beneficial to reduce the size of the plug valve 10 in the length direction of the valve stem 12 .
  • the diameter of the transmission gear 22 is smaller than the diameter of the connecting gear 23 .
  • the rotation speed of the connecting gear 23 is mainly affected by the number of transmission tooth segments 222 on the transmission gear 22 and the number of meshing teeth 223 on the transmission tooth segment 222 . Therefore, when it is ensured that the number of transmission tooth segments 222 on the transmission gear 22 and the number of meshing teeth 223 on the transmission tooth segment 222 meet the transmission requirements, the diameter of the transmission gear 22 can be set smaller than the diameter of the connecting gear 23 to reduce the transmission gear.
  • the occupied space of 22 improves the compactness of the plug valve 10 .
  • the diameter of the transmission gear 22 and the diameter of the connecting gear 23 may also be approximately the same.
  • the motor 21 may also be provided as a geared motor 21 .
  • the valve stem 12 is movable along its length direction to have a depressed ignition position.
  • the valve stem 12 triggers the ignition switch 13 .
  • the valve stem 12 also has a fire-off position that moves upward from the ignition position, and the fire-off position and the fire-off position are two positions when the valve stem 12 moves along its length direction, and switches between the fire-off position and the fire-off position , the valve stem 12 does not rotate.
  • the valve stem 12 In the ignition position, the valve stem 12 is rotatable. When the valve rod 12 is in the closed gear position, the valve rod 12 can be switched between the ignition position and the ignition off position.
  • valve stem 12 When starting the plug valve 10 for ignition, the valve stem 12 needs to be pressed down to the ignition position, so that the valve stem 12 triggers the ignition switch 13 to provide an ignition signal to the pulse igniter, thereby starting the pulse igniter to ignite. At this time, by manually rotating the valve stem 12, the valve stem 12 is rotated from the closed gear to the fire gear, so that the valve is opened to let in gas, so that the gas stove is ignited.
  • the connecting gear 23 and the transmission gear 22 are spaced apart in the axial direction of the connecting gear 23 (ie, the length direction of the valve rod 12 ).
  • the connecting gear 23 faces the vacant segment 224 of the transmission gear 22, that is, the transmission gear segment 222 can mesh with the connection gear 23.
  • the starter motor 21 drives the transmission gear 22 to rotate, the transmission gear segment 22 will rotate. 222 can be meshed with the connecting gear 23 .
  • the valve When the fire needs to be turned off, the valve is closed by rotating the valve stem 12 to the closed gear position, and the valve stem 12 can be moved to the fire off position, so that the connecting gear 23 and the transmission gear 22 are axially spaced. In this way, even if the motor 21 is activated when the gas stove is off, the motor 21 and the transmission gear 22 cannot drive the valve stem 12 to rotate, which greatly improves the reliability and safety of the plug valve 10 .
  • the transmission tooth segment 222 can mesh with the connecting gear 23 in both the fire-off position and the ignition position.
  • the connecting gear 23 is located on the mounting seat 111 at the end of the mounting convex ring 112 away from the valve body 110 , and the mounting seat 111 also protrudes with a support along the protruding direction of the mounting convex ring 112 .
  • the motor 21 is fixed on the side of the support part 119 facing the valve body 110 , the motor 21 passes through the support part 119 , the transmission gear 22 is located on the surface of the support part 119 away from the valve body 110 and meshes with the connecting gear 23 .
  • the transmission gear 22 and the connecting gear 23 can be substantially in the same plane, so as to ensure that the transmission gear 22 and the connecting gear 23 can mesh well, so that the length of the rotating shaft of the motor 21 can be reduced, and the motor 21 can be reduced during the rotation of the transmission gear 22.
  • the possibility of bending and deformation of the rotating shaft makes the rotation stability of the connecting gear 23 better.
  • the plug valve 10 further includes a controller and a wireless communication module, the controller is electrically connected to the wireless communication module and the driving mechanism, and the wireless communication module is used for communicating with an external terminal to receive a control command sent by the external terminal,
  • the controller is used to control the drive mechanism to drive the valve stem 12 to rotate according to the control instruction. In this way, it can communicate with the external terminal through the wireless communication module to receive the control command sent by the external terminal, and when the controller receives the control command from the external terminal through the wireless communication module, it can control the drive mechanism to drive the valve stem according to the control command. 12 is rotated, and then the fire power of the gas stove can be adjusted or the gas stove can be turned off.
  • a control button may also be provided on the gas stove, so that the valve stem 12 can be adjusted by controlling the driving structure through the control button, or the valve stem 12 can be adjusted by controlling the driving structure through an external terminal.
  • the wireless communication module is a Bluetooth module, a radio frequency module or a WIFI module. In this way, the power consumption of the gas stove is low, which is beneficial to saving power.
  • the controller when the controller receives a fire-off instruction through the wireless communication module or when the recipe program ends and automatically shuts off the fire, the controller controls the motor 21 to drive the valve stem 12 to rotate, When the valve rod 12 is rotated to the closed position, the vacant section 224 faces the connecting gear 23 . Specifically, when the transmission gear 22 triggers the control switch 15 , the transmission gear 22 is in a state where the idle section 224 faces the connection gear 23 . When the valve rod 12 rotates to the close position, the valve rod 12 can move to the fire-off position.
  • the valve rod 12 triggers the switch 14 to stop the rotation of the motor 21 when the transmission gear 22 triggers the control switch 15 again. That is, when the control switch 15 is triggered by the transmission gear 22 to generate a trigger signal, the transmission gear 22 is located in the transmission gear segment 222 and meshes with the connecting gear 23 , so that the idle segment 224 faces the connecting gear 23 . In other words, when the transmission gear segment 222 is meshed with the connecting gear 23 , so that when the connecting gear 23 faces the empty segment 224 , the transmission gear 22 triggers the control switch 15 to generate a trigger signal.
  • the controller controls the motor 21 to drive the valve stem 12 to rotate toward the off gear.
  • the valve rod 12 rotates to the closed gear, the valve rod 12 can trigger the switch 14, and at the same time the valve rod 12 can automatically switch to the off position, so that the connecting gear 23 and the transmission gear 22 are spaced apart in the axial direction of the connecting gear 23 .
  • the controller detects the trigger signal that the switch 14 is triggered, and uses the trigger signal as one of the instruction signals for controlling the motor 21 to stop rotating.
  • the controller After the controller detects that the switch 14 is triggered by the valve stem 12 to generate a trigger signal, and then detects the electrical signal that the control switch 15 is triggered by the transmission gear 22 to generate a trigger signal, the controller controls the motor 21 to stop rotating. Therefore, after the gas stove is turned off, it is ensured that the transmission gear 22 is in a state where the empty section 224 faces the connecting gear 23, so as to ensure that the empty section 224 of the transmission gear 22 faces the connecting gear 23 when the valve stem 12 is pressed down for ignition next time, thereby avoiding The fact that the connecting gear 23 interferes with the transmission tooth segment 222 on the transmission gear 22 improves the reliability of the plug valve 10 .
  • switch 14 may also be provided to provide an indication signal for controlling the motor 21 to stop rotating. Or determine that the valve stem 12 has been rotated to the closing gear by other methods, and provide a trigger signal for the controller to control the motor 21 to stop.
  • the notch 122 on the valve stem 12 can be extended along the circumferential direction of the valve stem 12 to ensure that when the valve stem 12 rotates to the preset fire power position, the contact pressure portion of the switch 14 It is located in the notch 122 , and when the valve stem 12 is rotated to the off position, the pressing portion of the switch 14 can also be located in the notch 122 .
  • two notches 122 may also be provided on the valve stem 12. When the valve stem 12 rotates to the preset fire power level, the contact pressure portion of the switch 14 is located in one of the notches 122. When the valve stem 12 rotates to the off level When in position, the pressing portion of the switch 14 is located in the other notch 122 .
  • the valve stem 12 when the switch 14 is a micro switch, the valve stem 12 is provided with a notch 122 .
  • the pressing parts are all located in the notch 122, and when the valve rod 12 is located between the minimum fire power gear and the closing gear, the pressing part of the switch 14 abuts on the peripheral surface of the valve rod 12, and the valve rod 12 rotates to make the switch 14
  • a signal is output to control the rotation of the motor 21 through the controller.
  • only one notch 122 can be provided, which can reduce the processing steps of the valve stem 12 and simplify the structure of the valve stem 12 .
  • the plug valve 10 further includes a controller and a temperature sensor, the controller is electrically connected to the temperature sensor and the driving mechanism, the temperature sensor is used to detect the appliance temperature of the cooking appliance, and the controller is further used to control the driving of the driving mechanism according to the appliance temperature.
  • the valve stem 12 rotates. Specifically, in the automatic fire adjustment mode, the controller can control the drive motor 21 to drive the valve stem 12 to rotate according to a preset cooking program, so that the fire power of the gas stove can be automatically adjusted.
  • the appliance temperature of the cooking appliance can be detected in real time through the temperature sensor, so that the controller can control the driving mechanism to drive the valve rod 12 to the target fire power level according to the preset program and the appliance temperature, so that the gas stove can be improved.
  • the temperature sensor may not be provided.
  • the application also proposes a gas stove, which includes a stove body and a plug valve.
  • the specific structure of the plug valve refers to the above-mentioned embodiments. Since the gas stove adopts all the technical solutions of all the above-mentioned embodiments, it has at least the above-mentioned implementations. All the beneficial effects brought by the technical solutions of the examples are not repeated here.
  • the stopcock is arranged on the stove body.
  • the valve rod passes through the cooker body, and the portion of the valve rod passing through the cooktop body is provided with a knob. That is, the user can either manually operate the gas stove, or operate the gas stove through an external terminal. Compared with the manual operation of the gas stove, it is very convenient for the user to adjust the firepower of the gas stove and turn off the fire. . The user can either adjust the firepower manually or select the mode of automatically adjusting the firepower, which increases the user's selectivity and facilitates the user to switch between various cooking methods.

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Abstract

一种旋塞阀(10),包括阀座(11)、阀杆(12)、驱动机构和切换开关(14),阀杆(12)、驱动机构和切换开关(14)均安装于阀座(11),驱动机构驱动连接于阀杆(12),切换开关(14)与驱动机构电连接。旋塞阀(10)具有自动调火模式和手动调火模式,通过旋转阀杆(12)触发切换开关(14)时,旋塞阀(10)切换至自动调火模式。一种包括该旋塞阀的燃气灶。

Description

旋塞阀和燃气灶
本申请要求于2021年2月1日申请的、申请号为202110139459.X的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及燃气器具领域,特别涉及一种旋塞阀和燃气灶。
背景技术
目前的燃气灶中,主要是通过手动旋转燃气灶上旋钮来调节火力大小,如此在需要调节火力时,都需要进行手动操作,比较麻烦。例如在熬粥和煲汤等烹饪过程中,用户基本不可能一直呆在厨房,由于烹饪时间长,故当用户离开厨房后,容易忘记调火时间甚至可能忘记正在烹饪,进而容易因为火力一直处于较大的状态而造成煮糊等情况。而若要求用户一直处于厨房,则会浪费用户处理其它事务的时间,非常不便于用户使用。
技术问题
本申请的主要目的是提出一种旋塞阀,旨在增加用户可选择性,以便于用户使用。
技术解决方案
为实现上述目的,本申请提出的燃气灶,包括:
阀座;
阀杆,安装于所述阀座;
驱动机构,安装于所述阀座,所述驱动机构驱动连接于所述阀杆;以及
切换开关,安装于所述阀座,所述切换开关与所述驱动机构电连接;
所述旋塞阀具有自动调火模式和手动调火模式,通过旋转所述阀杆触发所述切换开关时,所述旋塞阀切换至所述自动调火模式。
在一实施例中,所述阀座包括阀体和安装座,所述阀杆安装于所述阀体,所述切换开关和所述驱动机构均安装于所述安装座。
如此通过在阀体上额外设置安装座供驱动机构和切换开关安装,有利于简化阀体的结构,便于阀体制造成型,降低阀体的成本。
在一实施例中,所述安装座设有安装孔,所述阀杆穿过所述安装孔而安装于所述阀体。
相当于使得安装孔为安装座上的定位基准,能够便于驱动机构和切换开关的定位安装,有利于提升驱动机构和切换开关的装配精度。
在一实施例中,所述安装座于所述安装孔的周缘设有安装凸环,所述安装凸环环设于所述阀杆周侧。
如此设置,相当于增加了安装孔的长度,能够较好地限制阀杆偏转,提升阀杆旋转时的稳定性。
在一实施例中,所述安装凸环设有让位孔,所述切换开关自所述让位孔伸入所述安装凸环内,以与所述阀杆配合。
如此设置,能够避免过多减少安装凸环的结构,相较于设置缺口的方式,能降低让位孔的开设对安装凸环结构强度的影响,使安装凸环保持较高的结构强度。
在一实施例中,所述旋塞阀包括点火开关,所述安装凸环设有避让缺口,所述点火开关自所述避让缺口伸入所述安装凸环内,以与所述阀杆配合。
如此在成型安装座时,即可成型避让缺口,减少了后续另外加工避让缺口的工序,有利于降低安装座的生产成本。
在一实施例中,所述避让缺口和所述让位孔分设于所述安装凸环的两相对侧。
如此能够避免点火开关和切换开关在安装座上相互干涉,也能避免阀杆上分别与点火开关、切换开关配合位置相互干涉,保证旋塞阀可靠性。
在一实施例中,所述阀杆的外周环设有触动槽,所述点火开关为微动开关,所述点火开关的触压部伸入所述触动槽内,以在所述阀杆下压时,所述触动槽的上侧槽壁触发所述点火开关。
相较于在阀杆的外周面凸设有环形凸起来触发点火开关的方式,如此能减小阀杆径向尺寸,从而减小阀杆的占用空间,使得旋塞阀的结构更加紧凑。
在一实施例中,所述安装座设有第一限位槽,所述切换开关设于所述第一限位槽内;和/或,所述安装座设有第二限位槽,所述点火开关设于所述第二限位槽内。
即在将切换开关安装于第一限位槽内时,第一限位槽能够对切换开关初步限位,如此有利于减少用于固定切换开关的螺钉数量,例如可以通过一个螺钉配合第一限位槽,即可将切换开关稳定地安装于安装座上。将点火开关安装于第二限位槽内时,第二限位槽能够对点火开关初步限位,如此有利于减少用于固定点火开关的螺钉数量,例如可以通过一个螺钉配合第二限位槽,即可将点火开关稳定地安装于安装座上。
在一实施例中,所述驱动机构包括设于所述安装座的电机、设于所述电机转轴的传动齿轮和设于所述阀杆的连接齿轮,所述传动齿轮与所述连接齿轮传动连接。
如此结构简单,传动可靠,能够降低旋塞阀的成本。
在一实施例中,所述旋塞阀还包括控制器和控制开关,所述控制器电连接于所述控制开关和所述电机,所述控制开关安装于所述安装座,所述电机驱动所述传动齿轮旋转时,所述传动齿轮间歇地触发所述控制开关,所述控制器用于根据所述控制开关的被触发次数计算所述阀杆的旋转角度。
用户在使用时,可以通过控制器按照预设程序控制电机驱动阀杆旋转,从而可以实现自动调节燃气灶的火力大小。以在用户使用燃气灶进行烹饪时,可以减少对燃气灶的操作次数和减少手动调节燃气灶火力的情况,使得用户使用燃气灶烹饪时更加方便,极大提升了用户使用便利性。
在一实施例中,所述传动齿轮包括轮本体、在所述轮本体的周向上依次设置的传动齿段和空置段,所述轮本体连接于所述电机的转轴,于所述自动调火模式,所述电机驱动所述传动齿轮旋转时,所述传动齿段间歇地与所述连接齿轮啮合,于所述手动调火模式,所述空置段面向所述连接齿轮。
如此设置,即使电机出现故障等原因而导致传动齿轮卡死或者电源断开时,仍可以通过手动旋转阀杆的方式启动燃气灶,避免了因电机故障或断电时而导致不能正常使用燃气灶的情况。
在一实施例中,所述控制开关为微动开关,并设于所述传动齿轮的周侧,所述电机驱动所述传动齿轮旋转时,所述传动齿段间歇地触发所述控制开关。
如此利用传动齿段触发控制开关,可以避免在传动齿轮上额外设置触发结构,能够简化传动齿轮的结构,且能减少旋塞阀的装配工序。
在一实施例中,所述连接齿轮位于所述安装座上安装凸环远离所述阀体的一端,所述安装座沿所述安装凸环的凸设方向还凸设有支撑部,所述电机固定于所述支撑部朝向所述阀体的一侧,所述电机穿设于所述支撑部,所述传动齿轮位于所述支撑部背离所述阀体的表面,并与所述连接齿轮啮合。
如此可以使得传动齿轮与连接齿轮大致处于同一平面内,保证传动齿轮和连接齿轮能够较好地啮合,如此还能减小电机转轴的长度,降低传动齿轮转动过程中电机转轴弯曲变形的可能,使得连接齿轮的转动稳定性更好。
在一实施例中,所述旋塞阀还包括控制器和无线通信模块,所述控制器电连接所述无线通信模块与所述驱动机构,所述无线通信模块用于与外部终端通信连接,以接收外部终端所发送的控制指令,所述控制器用于根据所述控制指令控制所述驱动机构驱动所述阀杆旋转。
如此用户在需要烹饪过程中需要调节燃气灶的火力大小或者需要关火时,只需要通过外部终端向燃气灶发送对应的控制指令即可,不需要用户进入厨房操作燃气灶,极大方便了便于用户进行调节燃气灶的火力大小和关火等操作,提升了用户使用便利性。
在一实施例中,所述旋塞阀还包括控制器和温度传感器,所述控制器电连接所述温度传感器与所述驱动机构,所述温度传感器用于检测烹饪器具的器具温度,所述控制器还用于根据所述器具温度控制所述驱动机构驱动所述阀杆旋转。
在启动自动调火模式时,可以通过温度传感器实时检测烹饪器具的器具温度,使得控制器可以根据预设程序和器具温度控制驱动机构将阀杆驱动至目标火力档位,如此能够提升燃气灶自动调火模式的精准度。
本申请还提出一种燃气灶,包括灶体以及如上述的旋塞阀,所述旋塞阀设于所述灶体。
有益效果
本申请技术方案通过在旋塞阀上设置驱动机构和切换开关,并将驱动机构驱动连接于阀杆,以能够通过驱动机构驱动阀杆转动,如此可以在手动调火模式的基础上增加通过驱动机构驱动阀杆转动来调节火力的自动调火模式,使得用户即可以通过手动调节火力大小,也可以选择自动调节火力大小的模式,增加了用户可选择性,能便于用户在多种烹饪方式中切换使用。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图示出的结构获得其他的附图。
图1为本申请燃气灶一实施例中旋塞阀的结构示意图;
图2为图1中旋塞阀的爆炸图;
图3为图2中安装座的结构示意图;
图4为图2中阀杆的结构示意图;
图5为图2中传动齿轮和连接齿轮的结构示意图;
图6为本申请旋塞阀另一实施例中传动齿轮和连接齿轮的结构示意图。
附图标号说明:
标号 名称 标号 名称
10 旋塞阀 121 触动槽
11 阀座 122 缺口
110 阀体 13 点火开关
111 安装座 14 切换开关
112 安装凸环 15 控制开关
113 避让缺口 21 电机
114 让位孔 22 传动齿轮
115 第一限位槽 221 轮本体
116 第二限位槽 222 传动齿段
117 第一定位柱 223 啮合齿
118 第二定位柱 224 空置段
119 支撑部 23 连接齿轮
12 阀杆    
本申请目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。
本发明的实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请的一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
需要说明,若本申请实施例中有涉及方向性指示(诸如上、下、左、右、前、后……),则该方向性指示仅用于解释在某一特定姿态下各部件之间的相对位置关系、运动情况等,如果该特定姿态发生改变时,则该方向性指示也相应地随之改变。
另外,若本申请实施例中有涉及“第一”、“第二”等的描述,则该“第一”、“第二”等的描述仅用于描述目的,而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外,全文中出现的“和/或”的含义为,包括三个并列的方案,以“A和/或B为例”,包括A方案,或B方案,或A和B同时满足的方案。另外,各个实施例之间的技术方案可以相互结合,但是必须是以本领域普通技术人员能够实现为基础,当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在,也不在本申请要求的保护范围之内。
本申请提出一种旋塞阀,用于燃气灶。
在本申请实施例中,请参照图1和图2,该旋塞阀10包括阀座11、阀杆12、驱动机构和切换开关14,阀杆12安装于阀座11,驱动机构安装于阀座11,且驱动机构驱动连接于阀杆12。切换开关14安装于阀座11,切换开关14与驱动机构电连接。旋塞阀10具有自动调火模式和手动调火模式,通过旋转阀杆12触发切换开关14时,旋塞阀10切换至自动调火模式。
本实施例中,旋塞阀10还包括控制器,控制器电连接切换开关14和驱动机构,旋塞阀10具有关闭档位和旋转预设角度后的预设火力档位,阀杆12旋转至预设火力档位时,阀杆12触发切换开关14,以使旋塞阀10切换至自动调火模式,在自动调火模式,可以通过控制器控制驱动机构驱动阀杆12转动来调节火力大小。
具体而言,阀杆12从关闭档位旋转至预设火力档位的过程中实现点火,例如可以在阀杆12旋转离开关闭档位时完成点火过程。在将阀杆12旋转至预设火力档位,并触发切换开关14时,控制器能检测到切换开关14被触发,从而使旋塞阀10切换至自动调火模式,进而根据预设程序控制驱动机构驱动阀杆12旋转至目标火力档位,以实现自动调节火力大小的功能。
其中,可以通过手动调节阀杆12旋转至预设火力档位,也可以通过外部终端向控制器发送启动指令,通过控制器控制驱动机构驱动阀杆12旋转至预设火力档位。此外,点火时,可以通过手动操作,也可以通过电动控制。当然,在其它实施例中,旋塞阀10也可以不设置控制器。
本申请技术方案通过在旋塞阀10上设置驱动机构和切换开关14,并将驱动机构驱动连接于阀杆12,以能够通过驱动机构驱动阀杆12转动,如此可以在手动调火模式的基础上增加通过驱动机构驱动阀杆12转动来调节火力的自动调火模式,使得用户即可以通过手动调节火力大小,也可以选择自动调节火力大小的模式,增加了用户可选择性,能便于用户在多种烹饪方式中切换使用。
请参照图2和图3,在一实施例中,阀座11包括阀体110和安装座111,阀杆12安装于阀体110,切换开关14和驱动机构均安装于安装座111。由于阀体110上需要设置通气通道等结构,故而阀体110的结构较为复杂,如此通过在阀体110上额外设置安装座111供驱动机构和切换开关14安装,有利于简化阀体110的结构,便于阀体110制造成型,降低阀体110的成本。其中,可以将安装座111与阀体110可拆卸连接,例如安装座111可以通过螺钉固定于阀体110,也可以将安装座111焊接于阀体110等等。当然,在其它实施例中,也可以将切换开关14和驱动机构均安装于阀体110。
在一实施例中,安装座111设有安装孔,阀杆12穿过安装孔而安装于阀体110。具体而言,驱动机构和切换开关14均需要与阀杆12配合,通过在安装座111上设置安装孔,并将阀杆12穿设于安装孔时,相当于使得安装孔为安装座111上的定位基准,能够便于驱动机构和切换开关14的定位安装,有利于提升驱动机构和切换开关14的装配精度。当然,在其它实施例中,也可以将安装座111设于阀杆12旁侧。
在一实施例中,安装座111于安装孔的周缘设有安装凸环112,安装凸环112环设于阀杆12周侧。具体而言,安装凸环112设在安装座111背离阀体110的表面,阀杆12部分伸入安装凸环112内,如此设置,相当于增加了安装孔的长度,能够较好地限制阀杆12偏转,提升阀杆12旋转时的稳定性。当然,在其它实施例中,也可以不设置安装凸环112。
在一实施例中,旋塞阀10包括点火开关13,安装凸环112设有避让缺口113,点火开关13自避让缺口113伸入安装凸环112内,以与阀杆12配合。具体而言,安装凸环112与安装座111一体成型,避让缺口113贯穿安装凸环112的端面,如此在成型安装座111时,即可成型避让缺口113,减少了后续另外加工避让缺口113的工序,有利于降低安装座111的生产成本。当然,在其它实施例中,也可以在安装凸环112上设置避让通孔,点火开关13自避让通孔伸入安装凸环112内,以与阀杆12配合。
在一实施例中,安装凸环112设有让位孔114,切换开关14自让位孔114伸入安装凸环112内,以与阀杆12配合。具体而言,让位孔114与避让缺口113间隔,且让位孔114与安装凸环112的端面间隔,如此设置,能够避免过多减少安装凸环112的结构,相较于设置缺口122的方式,能降低让位孔114的开设对安装凸环112结构强度的影响,使安装凸环112保持较高的结构强度。当然,在其它实施例中,也可以在安装凸环112设有让位缺口122,切换开关14自让位缺口122伸入安装凸环112内,以与阀杆12配合。
在一实施例中,避让缺口113和让位孔114分设于安装凸环112的两相对侧。即切换开关14和点火开关13分设于安装凸环112的两相对侧,如此能够避免点火开关13和切换开关14在安装座111上相互干涉,也能避免阀杆12上分别与点火开关13、切换开关14配合位置相互干涉,保证旋塞阀10可靠性。当然,在其它实施例中,避让缺口113和让位孔114也可以设于安装凸环112的同一侧等等。
在一实施例中,点火开关13为微动开关。具体地,点火开关13可以为常闭微动开关或者常开微动开关。如此结构简单,有利于简化旋塞阀10的结构。当然,在其它实施例中,点火开关13也可以为光电传感器或霍尔传感器等等。
请参照图2至图4,在一实施例中,阀杆12的外周环设有触动槽121,点火开关13的触压部伸入触动槽121内,以在阀杆12下压时,触动槽121的上侧槽壁触发点火开关13。相较于在阀杆12的外周面凸设有环形凸起来触发点火开关13的方式,如此能减小阀杆12径向尺寸,从而减小阀杆12的占用空间,使得旋塞阀10的结构更加紧凑。当然,在其它实施例中,也可以在阀杆12的外周面凸设有环形凸起,以通过环形凸起触发点火开关13。
在一实施例中,切换开关14为微动开关。具体地,切换开关14可以为常闭微动开关或者常开微动开关。阀杆12上设有缺口122,阀杆12在从关闭档位旋转至预设火力档位的过程中,切换开关14的触压部抵接于阀杆12的外周面,使得切换开关14处于闭合状态,而当阀杆12旋转至预设火力档位时,切换开关14的触压部位于缺口122内,使得切换开关14从闭合状态切换为打开状态,即在阀杆12旋转至预设火力档位时,切换开关14的状态发生变化,从而产生触发信号,当控制器检测到切换开关14产生的触发信号时,启动自动调火模式。如此结构简单,有利于简化阀杆12和旋塞阀10的结构。当然,在其它实施例中,也可以在阀杆12的外周面设置凸部,当阀杆12旋转至预设火力档位时,使得切换开关14从打开状态切换至闭合状态,另外,切换开关14也可以为光电传感器或霍尔传感器等等。
切换开关14的固定方式具有多种,例如,在一实施例中,切换开关14通过螺钉固定于安装座111,如此结构简单,且固定牢靠。在其它实施例中,也可以在安装座111上设置卡接结构,通过卡接结构将切换开关14卡接于安装座111等等。
在一实施例中,安装座111设有第一限位槽115,切换开关14设于第一限位槽115内。具体而言,第一限位槽115能够限制切换开关14在安装座111上旋转,即在将切换开关14安装于第一限位槽115内时,第一限位槽115能够对切换开关14初步限位,如此有利于减少用于固定切换开关14的螺钉数量,例如可以通过一个螺钉配合第一限位槽115,即可将切换开关14稳定地安装于安装座111上。当然,在其它实施例中,也可以不设置第一限位槽115,而通过至少两个螺钉将切换开关14固定于安装座111。
在一实施例中,安装座111设有第一定位柱117,切换开关14设有第一定位孔,将切换开关14安装于安装座111时,第一定位柱117插接于第一定位孔,如此既能够对切换开关14进行定位,也能限制切换开关14在安装座111上平移。在设置第一限位槽115的实施例中,可以将第一定位柱117设于第一限位槽115内。
点火开关13的固定方式具有多种,例如,在一实施例中,点火开关13通过螺钉固定于安装座111,如此结构简单,且固定牢靠。在其它实施例中,也可以在安装座111上设置卡接结构,通过卡接结构将点火开关13卡接于安装座111等等。
在一实施例中,安装座111设有第二限位槽116,点火开关13设于第二限位槽116内。具体而言,第二限位槽116能够限制点火开关13在安装座111上旋转,即在将点火开关13安装于第二限位槽116内时,第二限位槽116能够对点火开关13初步限位,如此有利于减少用于固定点火开关13的螺钉数量,例如可以通过一个螺钉配合第二限位槽116,即可将点火开关13稳定地安装于安装座111上。当然,在其它实施例中,也可以不设置第二限位槽116,而通过至少两个螺钉将点火开关13固定于安装座111。
在一实施例中,安装座111设有第二定位柱118,点火开关13设有第二定位孔,将点火开关13安装于安装座111时,第二定位柱118插接于第二定位孔,如此既能够对点火开关13进行定位,也能限制点火开关13在安装座111上平移。在设置第二限位槽116的实施例中,可以将第二定位柱118设于第二限位槽116内。
在一实施例中,预设火力档位为最小火力档位。本实施例中,阀杆12从关闭档位旋转至最小火力档位时为逆时针旋转,且最小火力档位为阀杆12旋转的最大角度。从而在将预设火力档位设在最小火力档位时,能够便于用户确定预设火力档位的位置,从而便于用户手动将阀杆12旋转至预设火力档位。此外,当启动自动调火模式时,电机21可能不会即刻驱动阀杆12转动至目标火力档位,此时若将预设火力档位设置在火力较大的档位,烹饪器具的温度会快速升高,导致烹饪器具内食材烧焦。而通过将预设火力档位设在最小火力档位,能够减缓烹饪器具升温速度,降低了烹饪器具内食材因温度快速升高而被烧焦的风险。当然,在其它实施例中,也可以将预设火力档位设于其它火力档位。
在一实施例中,驱动机构包括设于安装座111的电机21、设于电机21转轴的传动齿轮22和设于阀杆12的连接齿轮23,传动齿轮22与连接齿轮23传动连接。如此结构简单,传动可靠,能够降低旋塞阀10的成本。当然,在其它实施例中,也可以采用其它传动方式。
请参照图1和图2,在一实施例中,旋塞阀10还包括控制开关15,控制器电连接于控制开关15和电机21,控制开关15安装于安装座111,电机21驱动传动齿轮22旋转时,传动齿轮22间歇地触发控制开关15,控制器用于根据控制开关15的被触发次数计算阀杆12的旋转角度。具体而言,控制器控制电机21驱动传动齿轮22沿第一方向旋转时,传动齿轮22每触发一次控制开关15,旋塞阀10的火力档位增大一档,控制器控制电机21驱动传动齿轮22沿第二方向旋转时,传动齿轮22每触发一次控制开关15,旋塞阀10的火力档位减小一档,第一方向与第二方向相反。即第一方向和第二方向为相反的圆周方向,以下以第一方向为逆时针方向为例进行说明,但不限于此。第一方向为逆时针方向时,则第二方向为顺时针方向。
在自动调火模式时,控制器能够控制电机21带动传动齿轮22转动,进而由传动齿轮22带动连接齿轮23和阀杆12旋转。通过控制器控制电机21驱动传动齿轮22沿第一方向转动时,传动齿轮22每触发一次控制开关15,即表示阀杆12旋转一定角度,从而使旋塞阀10的火力档位增大一档。而通过控制器控制电机21驱动传动齿轮22沿第二方向转动时,传动齿轮22每触发一次控制开关15,即表示阀杆12反方向旋转一定角度,从而使旋塞阀10的火力档位减小一档。而在电机21的驱动下,阀杆12沿第二方向旋转至最小火力档位时,通过控制器控制电机21停止转动。即在自动调火的过程中,阀杆12在最大火力档位和最小火力档位之间转动。由于传动齿轮22不能发生位移,故通过传动齿轮22的转动来触发控制开关15时,能够保证控制开关15检测的精准度,保证自动调火模式的准确性。
如此设置,在通过控制器控制电机21带动传动齿轮22转动时,传动齿轮22能够间歇地触发控制开关15,控制器根据电机21的转动方向和控制开关15的触发次数,可以判断阀杆12旋转后所对应的火力档位。即用户在使用时,可以通过控制器按照预设程序控制电机21驱动阀杆12旋转,从而可以实现自动调节燃气灶的火力大小。以在用户使用燃气灶进行烹饪时,可以减少对燃气灶的操作次数和减少手动调节燃气灶火力的情况,使得用户使用燃气灶烹饪时更加方便,极大提升了用户使用便利性。
另外,若根据电机21转动的步数来决定火量大小,由于单片机的运行速度限制,单片机通过定时器控制步进电机21的步进脉冲的产生,且定时器的时间分辨率有限,所以步进电机21的运行速度调节是离散的,造成各个速度之间的力矩不连续,并且由于惯性和力矩的原因,容易发生失步,因此电机21难以按预设步数进行转动,控制精准度差,实用性差。本申请技术方案相较于根据电机21转动的步数来决定火量大小的方式,能够避免因步进电机21容易失步或者无法按预设步数转动导致其实用性差的问题,同时,电机21既可以采用步进电机21,也可以采用直流电机21,受限性小,可以灵活配置。
本申请技术方案可以在常规旋塞阀10基础上增加了电机21、连接齿轮23和传动齿轮22等电动控制机构,不需要额外设置燃气管路结构,降低了安装工艺的难度和漏气风险,不影响燃气灶的原有安装工艺和气路安装工艺。本方案的燃气灶与普遍使用的小底壳燃气灶相吻合,从而用户在采用本方案的燃气灶时,不需要扩大安装燃气灶的安装孔,减小了客户更换燃气灶的阻力,从而降低了本方案燃气灶的销售门槛,有利于提升市场竞争力。
在一实施例中,最小火力档位为阀杆12自关闭档位逆时针旋转至270°的位置,燃气灶的最大火力档位为阀杆12自关闭档位逆时针旋转至90°或180°的位置。如此可以在最小火力档位和最大火力挡位之间设置较多的火力档位,能提升火力调节的精准度。当然,在其它实施例中,最小火力档位和最大火力档位也可以在其它位置。
请参照图1、图2和图5,在一实施例中,传动齿轮22包括轮本体221、在轮本体221的周向上依次设置的传动齿段222和空置段224,轮本体221连接于电机21的转轴,于自动调火模式,电机21驱动传动齿轮22旋转时,传动齿段222间歇地与连接齿轮23啮合,于手动调火模式,空置段224面向连接齿轮23。具体而言,传动齿段222设有啮合齿223,以在自动调火模式时,啮合齿223能够与连接齿轮23啮合,进而可以带动连接齿轮23转动。而空置段224不设置啮合齿223,从而在空置段224面向连接齿轮23时,连接齿轮23与传动齿段222的啮合齿223间隔,以使传动齿轮22与连接齿轮23相互独立。也即,在自动调火模式下,当传动齿轮22转动至传动齿段222与连接齿轮23啮合时,可带动连接齿轮23转动,而当传动齿轮22转动至空置段224面向连接齿轮23时,传动齿轮22不会带动连接齿轮23转动。
如此设置,在自动调火模式,通过电机21驱动传动齿轮22持续转动时,传动齿段222能间歇地与连接齿轮23啮合,以能够带动连接齿轮23和阀杆12转动,从而可以实现电动控制阀杆12旋转来调节火力大小。此外,还可以通过电机21驱动传动齿轮22转动至空置段224面向连接齿轮23时,控制电机21停止转动,使得传动齿轮22保持空置段224面向连接齿轮23的状态。此时通过手动旋转阀杆12时,能够避免传动齿轮22和连接齿轮23相互干涉,保证阀杆12顺利旋转,避免手动调节阀杆12旋转时因带动传动齿轮22旋转而增大扭矩的情况。即使电机21出现故障等原因而导致传动齿轮22卡死或者电源断开时,仍可以通过手动旋转阀杆12的方式启动燃气灶,避免了因电机21故障或断电时而导致不能正常使用燃气灶的情况。也即,本方案中的旋塞阀10既能通过电动调节阀杆12旋转来实现自动调节火力大小,也能避免因电机21故障或断电时而导致不能正常使用燃气灶的情况。当然,在其它实施例中,控制开关15也可以为光电传感器或霍尔传感器等等。另外,传动齿轮22也可以不设置空置段224。
在一实施例中,控制开关15为微动开关,并设于传动齿轮22的周侧,电机21驱动传动齿轮22旋转时,传动齿段222间歇地触发控制开关15。即传动齿段222的啮合齿223能够触发控制开关15,如此利用传动齿段222触发控制开关15,可以避免在传动齿轮22上额外设置触发结构,能够简化传动齿轮22的结构,且能减少旋塞阀10的装配工序。当然,在其它实施例中,也可以在传动齿轮22上另外设置用于触发控制开关15的触发结构,此时,传动齿轮22上的触发结构可以设置一个或多个,触发结构设置有多个时,多个,触发结构沿传动齿轮22的周向间隔分布。
请参照图2和图5,传动齿轮22的结构具有多种,例如,在一实施例中,传动齿轮22包括多个传动齿段222和多个空置段224,多个传动齿段222和多个空置段224在轮本体221的周向依次交替分布。即传动齿段222至少设有两个传动齿段222和至少两个空置段224,相当于轮本体221上设有多个传动齿段222,多个传动齿段222在轮本体221的周向上依次间隔分布,在轮本体221的周向上相邻的两个传动齿段222之间形成空置段224。当空置段224面向连接齿轮23时,连接齿轮23与传动齿段222的啮合齿223间隔。传动齿段222的数量可以为两个、三个、四个、五个或更多等等。
通过设置多个传动齿段222,当传动齿轮22旋转一周时,能够多次带动连接齿轮23和阀杆12转动,从而可以增大电机21驱动传动齿轮22旋转一周时带动阀杆12旋转的角度,使得阀杆12旋转速度较快,以能够快速旋转至目标火力档位。而且相当于减小了空置段224在轮本体221周向上的长度,以在自动调火模式时,在保证连接齿轮23和传动齿段222互不干涉的情况下,减少传动齿轮22的空转状态(在传动齿轮22持续转动时,传动齿段222没有与连接齿轮23啮合的状态)的时长,能减少传动齿轮22的空转状态时的能源浪费,有利于节约能源。在通过传动齿段222触发控制开关15的实施例中,在传动齿轮22旋转角度相同的情况下,设置多个传动齿段222时,能增加控制开关15的触发次数,使得火力调节更加精准。其中,为保证控制阀杆12旋转的精准度,在一实施例中,多个传动齿段222在轮本体221的周向上均匀间隔分布,多个空置段224在轮本体221的周向上也均匀间隔分布。
在另一实施例中,传动齿轮22包括一个传动齿段222和一个空置段224。即在轮本体221的周向上依次设有一个传动齿段222和一个空置段224,如此使得传动齿轮22的结构比较简单。其中,传动齿段222和空置段224在轮本体221周向上的弧长可以相同,也可以不同。
在一实施例中,传动齿段222设有多个啮合齿223,多个啮合齿223沿轮本体221的周向依次分布,同一传动齿段222的各啮合齿223连续与连接齿轮23啮合。即每一传动齿段222均设有至少两个啮合齿223,如此在传动齿轮22转动至传动齿段222与连接齿轮23啮合的过程中,带动连接齿轮23和阀杆12转动的角度较大,从而可以增大电机21驱动传动齿轮22旋转一周时带动阀杆12旋转的角度,使得阀杆12旋转速度较快,以能够快速旋转至目标火力档位。其中,传动齿段222的啮合齿223数量可以为两个、三个、四个或更多等等。
在另一实施例中,传动齿段222也可以设有一个啮合齿223。如此使得传动齿轮22的结构比较简单。
在一实施例中,连接齿轮23和传动齿轮22均为圆柱齿轮。本实施例中,连接齿轮23和传动齿轮22均为直齿圆柱齿轮。但不限于此,在其它实施例中,连接齿轮23和传动齿轮22也可以为斜齿圆柱齿轮或其它类型的圆柱齿轮。通过将连接齿轮23和传动齿轮22均设置为圆柱齿轮时,使得连接齿轮23和传动齿轮22的结构均较为简单,有利于降低装配难度和生产成本。
此外,请参考图6,在另一实施例中,连接齿轮23和传动齿轮22均为锥齿轮。本实施例中,连接齿轮23和传动齿轮22均为直齿锥齿轮。但不限于此,在其它实施例中,连接齿轮23和传动齿轮22也可以为斜齿锥齿轮或其它类型的锥齿轮。通过将连接齿轮23和传动齿轮22均设置为锥齿轮时,可以保证传动齿轮22和连接齿轮23运转的平稳性,降低噪声。
请参考图6,连接齿轮23和传动齿轮22均为锥齿轮时,在一实施例中,电机21(参考图2)的轴线与阀杆12(参考图2)相并行设置。即电机21的轴线与阀杆12并排,且大致平行设置,如此能减小电机21在连接齿轮23径向的占用空间,有利于减小旋塞阀10在连接齿轮23径向上的尺寸,使得旋塞阀10的结构更加紧凑。
另一实施例中,电机21的轴线与阀杆12相交。即电机21的轴线的延伸方向和阀杆12的延伸方向之间的夹角可以为直角或者锐角,如此设置,使得电机21沿连接齿轮23的径向方向安装,能减小电机21在阀杆12长度方向的占用空间,有利于减小旋塞阀10在阀杆12长度方向上的尺寸。
请参考图5或图6,在一实施例中,传动齿轮22的直径小于连接齿轮23的直径。本申请技术方案中,在电机21转速一致时,连接齿轮23的旋转速度主要受传动齿轮22上传动齿段222的数量和传动齿段222上啮合齿223的数量影响。故而在保证传动齿轮22上传动齿段222的数量和传动齿段222上啮合齿223的数量满足传动需求时,可以将传动齿轮22的直径设置小于连接齿轮23的直径,以能减小传动齿轮22的占用空间,提升旋塞阀10的结构紧凑性。当然,在其它实施例中,传动齿轮22的直径与连接齿轮23的直径也可以大致相同。此外,电机21也可以设置为减速电机21。
请参考图2和图4,在一实施例中,阀杆12沿其长度方向可运动,以具有下压的点火位置,于点火位置,阀杆12触发点火开关13。具体而言,阀杆12还具有自点火位置向上运动的关火位置,点火位置和关火位置为阀杆12沿其长度方向运动时的两个位置,在点火位置和关火位置之间切换时,阀杆12不发生旋转。于点火位置,阀杆12可旋转。阀杆12在关闭档位时,阀杆12能够在点火位置和关火位置之间切换。在启动旋塞阀10进行点火时,需要将阀杆12下压至点火位置,使阀杆12触发点火开关13,以给脉冲点火器提供点火信号,从而启动脉冲点火器点火。此时通过手动旋转阀杆12,使得阀杆12从关闭档位旋转至火力档位,使阀门打开通入燃气,从而使燃气灶点火。
在一实施例中,阀杆12在关火位置时,连接齿轮23与传动齿轮22在连接齿轮23的轴向(即阀杆12的长度方向)上间隔。阀杆12旋转至火力档位时,连接齿轮23面向传动齿轮22的空置段224,即传动齿段222能够与连接齿轮23啮合,此时若启动电机21带动传动齿轮22转动时,传动齿段222能够与连接齿轮23啮合。而在需要关火时,通过将阀杆12旋转至关闭档位,以关闭阀门,且阀杆12能够运动至关火位置,以使连接齿轮23与传动齿轮22在轴向上间隔。如此即使燃气灶在关火状态时电机21被启动,电机21和传动齿轮22也不能带动阀杆12转动,极大提升了旋塞阀10的可靠性和安全性。当然,在其它实施例中,于关火位置和点火位置时,传动齿段222均能够与连接齿轮23啮合。
请参考图2至图4,在一实施例中,连接齿轮23位于安装座111上安装凸环112远离阀体110的一端,安装座111沿安装凸环112的凸设方向还凸设有支撑部119,电机21固定于支撑部119朝向阀体110的一侧,电机21穿设于支撑部119,传动齿轮22位于支撑部119背离阀体110的表面,并与连接齿轮23啮合。如此可以使得传动齿轮22与连接齿轮23大致处于同一平面内,保证传动齿轮22和连接齿轮23能够较好地啮合,如此还能减小电机21转轴的长度,降低传动齿轮22转动过程中电机21转轴弯曲变形的可能,使得连接齿轮23的转动稳定性更好。
在一实施例中,旋塞阀10还包括控制器和无线通信模块,控制器电连接无线通信模块与驱动机构,无线通信模块用于与外部终端通信连接,以接收外部终端所发送的控制指令,控制器用于根据控制指令控制驱动机构驱动阀杆12旋转。如此可以通过无线通信模块与外部终端通信连接,以接收外部终端所发送的控制指令,而当控制器通过无线通信模块接收到外部终端的控制指令后,可以根据该控制指令控制驱动机构驱动阀杆12旋转,进而可以调节燃气灶的火力大小或者使得燃气灶关火。即用户在需要烹饪过程中需要调节燃气灶的火力大小或者需要关火时,只需要通过外部终端向燃气灶发送对应的控制指令即可,不需要用户进入厨房操作燃气灶,极大方便了便于用户进行调节燃气灶的火力大小和关火等操作,提升了用户使用便利性。当然,在其它实施例中,还可以在燃气灶上设置控制按键,以既可以通过控制按键控制驱动结构来调节阀杆12,也可以通过外部终端控制驱动结构来调节阀杆12。
在一实施例中,无线通信模块为蓝牙模块、射频模块或WIFI模块。如此使得燃气灶的功耗较低,有利于节约电源。
请参考图2、图4和图5,在一实施例中,当控制器通过无线通信模块接收到关火指令或者当菜谱程序结束自动关火时,控制器控制电机21驱动阀杆12旋转,阀杆12旋转至关闭档位时,空置段224面向连接齿轮23。具体而言,可以使得传动齿轮22触发控制开关15时,传动齿轮22处于空置段224面向连接齿轮23的状态。而阀杆12旋转至关闭档位时,阀杆12能够运动至关火位置。在电机21的驱动下,阀杆12旋转至关闭档位时,阀杆12触发切换开关14,以在传动齿轮22再次触发控制开关15时,使电机21停止转动。即当控制开关15被传动齿轮22触发而产生触发信号时,传动齿轮22位于传动齿段222与连接齿轮23啮合结束,使得空置段224面向连接齿轮23。换言之,传动齿段222与连接齿轮23啮合结束,使得连接齿轮23面向空置段224时,传动齿轮22触发控制开关15,以产生触发信号。
通过外部终端向控制器发送关火指令或者当菜谱程序结束自动关火时,控制器控制电机21驱动阀杆12朝关闭档位旋转。当阀杆12旋转至关闭档位时,阀杆12能触发切换开关14,同时阀杆12能够自动切换至关火位置,从而使得连接齿轮23和传动齿轮22在连接齿轮23的轴向上间隔。阀杆12触发切换开关14时,控制器检测到切换开关14被触发的触发信号,并将该触发信号作为控制电机21停止转动的指示信号之一。在控制器检测到切换开关14被阀杆12触发而产生触发信号后,再检测到控制开关15被传动齿轮22触发而产生触发信号的电信号时,控制器才控制电机21停止转动。从而使得燃气灶关火后,保证传动齿轮22处于空置段224面向连接齿轮23的状态,以在下次下压阀杆12点火时,保证传动齿轮22的空置段224面向连接齿轮23,从而避免了连接齿轮23与传动齿轮22上的传动齿段222干涉的情况,提升了旋塞阀10的可靠性。而且如此利用同一个切换开关14实现两个功能,能减少旋塞阀10上开关数量,简化旋塞阀10的结构。当然,在其它实施例中,也可以设置另一个切换开关14来为控制电机21停止转动提供指示信号。或者通过其它方式判断阀杆12已经旋转至关闭档位,并为控制器控制电机21停止提供触发信号。
其中,切换开关14为微动开关时,可以使阀杆12上的缺口122沿阀杆12的周向延伸,以保证阀杆12旋转至预设火力档位时,切换开关14的触压部位于缺口122内,而当阀杆12旋转至关闭档位时,切换开关14的触压部也能位于缺口122内。或者,也可以在阀杆12上设置两个缺口122,当阀杆12旋转至预设火力档位时,切换开关14的触压部位于其中一个缺口122内,当阀杆12旋转至关闭档位时,切换开关14的触压部位于另一个缺口122内。
请参考图2和图5,在一实施例中,切换开关14为微动开关时,阀杆12设有缺口122,阀杆12于最小火力档位和关闭档位时,切换开关14的触压部均位于缺口122内,阀杆12位于最小火力档位和关闭档位之间时,切换开关14的触压部抵接于阀杆12的周面,在阀杆12旋转使切换开关14的状态发生变化时输出信号,以通过控制器控制电机21转动。如此可以只设置一个缺口122,能够减少阀杆12的加工工序,且能简化阀杆12的结构。
在一实施例中,旋塞阀10还包括控制器和温度传感器,控制器电连接温度传感器与驱动机构,温度传感器用于检测烹饪器具的器具温度,控制器还用于根据器具温度控制驱动机构驱动阀杆12旋转。具体而言,在自动调火模式时,控制器可以根据预设烹饪程序来控制驱动电机21驱动阀杆12旋转,从而可以自动调节燃气灶的火力大小。在启动自动调火模式时,可以通过温度传感器实时检测烹饪器具的器具温度,使得控制器可以根据预设程序和器具温度控制驱动机构将阀杆12驱动至目标火力档位,如此能够提升燃气灶自动调火模式的精准度。当然,在其它实施例中,也可以不设置温度传感器。
本申请还提出一种燃气灶,该燃气灶包括灶体和旋塞阀,该旋塞阀的具体结构参照上述实施例,由于本燃气灶采用了上述所有实施例的全部技术方案,因此至少具有上述实施例的技术方案所带来的所有有益效果,在此不再一一赘述。其中,所述旋塞阀设于所述灶体。
本实施例中,阀杆自灶体穿出,阀杆穿出灶体的部分设有旋钮。即用户既可以通过手动操作燃气灶,也可以通过外部终端操作燃气灶,相较于仅可以通过手动操作燃气灶的方式,如此极大方便了用户进行调节燃气灶的火力大小和关火等操作。使得用户即可以通过手动调节火力大小,也可以选择自动调节火力大小的模式,增加了用户可选择性,能便于用户在多种烹饪方式中切换使用。
以上所述仅为本申请的优选实施例,并非因此限制本申请的专利范围,凡是在本申请的发明构思下,利用本申请说明书及附图内容所作的等效结构变换,或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (17)

  1. 一种旋塞阀,其中,包括:
    阀座;
    阀杆,安装于所述阀座;
    驱动机构,安装于所述阀座,所述驱动机构驱动连接于所述阀杆;以及
    切换开关,安装于所述阀座,所述切换开关与所述驱动机构电连接;
    所述旋塞阀具有自动调火模式和手动调火模式,通过旋转所述阀杆触发所述切换开关时,所述旋塞阀切换至所述自动调火模式。
  2. 如权利要求1所述的旋塞阀,其中,所述阀座包括阀体和安装座,所述阀杆安装于所述阀体,所述切换开关和所述驱动机构均安装于所述安装座。
  3. 如权利要求2所述的旋塞阀,其中,所述安装座设有安装孔,所述阀杆穿过所述安装孔而安装于所述阀体。
  4. 如权利要求3所述的旋塞阀,其中,所述安装座于所述安装孔的周缘设有安装凸环,所述安装凸环环设于所述阀杆周侧。
  5. 如权利要求4所述的旋塞阀,其中,所述安装凸环设有让位孔,所述切换开关自所述让位孔伸入所述安装凸环内,以与所述阀杆配合。
  6. 如权利要求5所述的旋塞阀,其中,所述旋塞阀包括点火开关,所述安装凸环设有避让缺口,所述点火开关自所述避让缺口伸入所述安装凸环内,以与所述阀杆配合。
  7. 如权利要求6所述的旋塞阀,其中,所述避让缺口和所述让位孔分设于所述安装凸环的两相对侧。
  8. 如权利要求6所述的旋塞阀,其中,所述阀杆的外周环设有触动槽,所述点火开关为微动开关,所述点火开关的触压部伸入所述触动槽内,以在所述阀杆下压时,所述触动槽的上侧槽壁触发所述点火开关。
  9. 如权利要求6所述的旋塞阀,其中,所述安装座设有第一限位槽,所述切换开关设于所述第一限位槽内;和/或,所述安装座设有第二限位槽,所述点火开关设于所述第二限位槽内。
  10. 如权利要求1至9中任意一项所述的旋塞阀,其中,所述驱动机构包括设于所述安装座的电机、设于所述电机转轴的传动齿轮和设于所述阀杆的连接齿轮,所述传动齿轮与所述连接齿轮传动连接。
  11. 如权利要求10所述的旋塞阀,其中,所述旋塞阀还包括控制器和控制开关,所述控制器电连接于所述控制开关和所述电机,所述控制开关安装于所述安装座,所述电机驱动所述传动齿轮旋转时,所述传动齿轮间歇地触发所述控制开关,所述控制器用于根据所述控制开关的被触发次数计算所述阀杆的旋转角度。
  12. 如权利要求11所述的旋塞阀,其中,所述传动齿轮包括轮本体、在所述轮本体的周向上依次设置的传动齿段和空置段,所述轮本体连接于所述电机的转轴,于所述自动调火模式,所述电机驱动所述传动齿轮旋转时,所述传动齿段间歇地与所述连接齿轮啮合,于所述手动调火模式,所述空置段面向所述连接齿轮。
  13. 如权利要求12所述的旋塞阀,其中,所述控制开关为微动开关,并设于所述传动齿轮的周侧,所述电机驱动所述传动齿轮旋转时,所述传动齿段间歇地触发所述控制开关。
  14. 如权利要求10所述的旋塞阀,其中,所述连接齿轮位于所述安装座上安装凸环远离所述阀体的一端,所述安装座沿所述安装凸环的凸设方向还凸设有支撑部,所述电机固定于所述支撑部朝向所述阀体的一侧,所述电机穿设于所述支撑部,所述传动齿轮位于所述支撑部背离所述阀体的表面,并与所述连接齿轮啮合。
  15. 如权利要求1至9中任意一项所述的旋塞阀,其中,所述旋塞阀还包括控制器和无线通信模块,所述控制器电连接所述无线通信模块与所述驱动机构,所述无线通信模块用于与外部终端通信连接,以接收外部终端所发送的控制指令,所述控制器用于根据所述控制指令控制所述驱动机构驱动所述阀杆旋转。
  16. 如权利要求1至9中任意一项所述的旋塞阀,其中,所述旋塞阀还包括控制器和温度传感器,所述控制器电连接所述温度传感器与所述驱动机构,所述温度传感器用于检测烹饪器具的器具温度,所述控制器还用于根据所述器具温度控制所述驱动机构驱动所述阀杆旋转。
  17. 一种燃气灶,包括灶体以及如权利要求1至16中任意一项所述的旋塞阀,所述旋塞阀设于所述灶体。
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