Plug valve and stove comprising same
By using a solenoid valve and flow regulator in the rotary valve design to switch between cooktop modes, the cost and complexity issues caused by adding components in existing technologies are solved. This enables switching between normal mode and stir-fry mode, reducing production costs.
Patent Information
- Application Number
- CN202520584890.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-31
AI Technical Summary
To achieve high-heat stir-frying, existing stoves require the addition of internal components, increasing production costs and design complexity.
It adopts a plug valve design, including a valve body, a solenoid valve and a flow regulator. The solenoid valve controls the gas flow, and the flow regulator is inserted into or removed from the valve port to switch between normal mode and stir-fry mode. The flow regulator is made of magnetic material to facilitate control of gas flow.
Without altering the original structure of the stove, mode switching is achieved by adding a flow regulating component, which reduces production costs and simplifies assembly.
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Figure CN223854976U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of kitchen utensils, in particular to a cock valve and a stove comprising the same. BACKGROUND
[0002] At present, the firepower of the existing household stove is between 4.5kw to 5.0kw, in order to meet the needs of consumers for explosive frying, one-key explosive frying related technology emerges as the times require. The existing technical solutions increase explosive frying fire channels on the valve body or add an explosive frying fire ring and an explosive frying gas path in the burner and the gas pipeline to realize large firepower explosive frying. In addition, the existing stove mostly uses solenoid valves for safety consideration, and the solenoid valve controls the opening and closing of the valve body by receiving the temperature difference signal feedback by the thermocouple. However, due to the fact that the temperature change is not obvious enough when the gas stove is initially started, it is easy to cause the valve body to close itself. Therefore, a short-time current supply is given in advance to maintain the open state of the solenoid valve until it is stable. In addition, the implementation mode of the gas flow regulation of the one-key explosive frying in the existing technology includes but is not limited to magnetic attraction, mechanical regulation, etc., and the installation position of the regulation component includes but is not limited to the inside of the valve body, the gas pipeline, etc.
[0003] As described above, in order to meet the needs of consumers for explosive frying, the existing technical solutions need to add related components inside the stove, redesign the valve body and other components, and perform the mold opening process, which not only increases the production cost, but also increases the difficulty of management and assembly of product components. UTILITY MODEL CONTENTS
[0004] The utility model solves the technical problem of overcoming the defects in the prior art that related components need to be added inside the stove to realize large firepower explosive frying, which increases the production cost and adds the process of redesigning the valve body, and provides a cock valve and a stove comprising the same.
[0005] The utility model solves the above technical problems by the following technical solutions:
[0006] A cock valve comprises:
[0007] A valve body, which is provided with an air inlet channel, a valve port and an air outlet channel in sequence and in communication with each other inside the valve body;
[0008] A solenoid valve, which is arranged inside the valve body and used for opening and closing the valve port; and
[0009] A flow regulation component, which has a central through hole in communication with the air inlet channel and the air outlet channel, is inserted into the valve port, the cross-sectional area of the central through hole is smaller than that of the valve port, and the flow regulation component is made of magnetic material;
[0010] The solenoid valve is arranged on one side of the valve port to attract the flow regulation component to separate from the valve port.
[0011] In the scheme, the electromagnetic valve is provided to control the on-off of the gas from the gas inlet channel to the gas outlet channel; the cross-sectional area of the center through hole of the flow regulating piece is smaller than that of the valve port, which makes the cross-sectional area of the gas flowing through the valve port when the flow regulating piece is inserted into the valve port smaller than that when the flow regulating piece is away from the valve port, that is, when the flow regulating piece is inserted into the valve port, the amount of gas from the gas inlet channel to the gas outlet channel is small, at this time the stove is in the normal mode, when the flow regulating piece is away from the valve port, the amount of gas from the gas inlet channel to the gas outlet channel is large, at this time the stove is in the stir-frying mode, that is, the flow regulating piece is provided to control the amount of gas from the gas inlet channel to the gas outlet channel to realize the switching of the stove from the normal mode and the stir-frying mode; the flow regulating piece is a magnetic material to be easily attracted by the electromagnetic valve, so as to be away from the valve port to increase the gas flow into the gas outlet channel to switch the stove from the normal mode to the stir-frying mode; in addition, the above-mentioned arrangement realizes the switching of the stove from the normal mode and the stir-frying mode without changing the original structure of the stove, only by adding the flow regulating piece, which reduces the cost.
[0012] Preferably, the flow regulating piece is a hollow cylinder, and the hollow cylinder has a certain thickness.
[0013] In the scheme, the flow regulating piece is a hollow cylinder, which makes the gas enter the gas outlet channel through the center through hole of the hollow cylinder without leaving the valve port; in addition, the hollow cylinder has a certain thickness to make the cross-sectional area of the center through hole smaller than that of the valve port, and the difference of the cross-sectional areas is controlled to control the flow in the normal mode and the flow in the stir-frying mode, so as to control the firepower difference between the normal mode and the stir-frying mode.
[0014] Preferably, the hollow cylinder comprises a main body portion and an abutting portion extending outward from the edge of one end of the main body portion, and the abutting portion is arranged at the end of the main body portion close to the electromagnetic valve.
[0015] The valve port is formed with an abutting surface facing the electromagnetic valve, and the abutting portion abuts against the abutting surface.
[0016] In the scheme, the abutting portion is arranged at the end of the main body portion close to the electromagnetic valve, and the abutting portion abuts against the abutting surface, which is beneficial to prevent the flow regulating piece from falling into the gas outlet channel due to the impact of the gas when the gas passes through, causing the gas outlet channel to be blocked; in addition, the abutting surface and the abutting portion have a large abutting area, which is relatively stable, so that the flow regulating piece is not easy to fall into the gas inlet channel to block the gas inlet channel. Those skilled in the art can also realize the positioning of the flow regulating piece relative to the valve port in other ways.
[0017] Preferably, the electromagnetic valve comprises a coil and a valve core, the valve core is axially movable relative to the coil, the valve core is connected with a valve plug, the valve plug is used to open and close the valve port, and the coil is used to attract the flow regulating piece away from the valve port.
[0018] In this design, when the coil is energized, it generates a magnetic field that attracts the valve core, which in turn pulls the valve plug to open the valve port. Furthermore, the magnetic field generated when the coil is energized also acts on the flow regulator, causing it to disengage from the valve port to increase the amount of gas entering the exhaust channel. In summary, the magnetic field generated by the energized coil in this design can not only be used on the valve core to open and close the valve port, but also act on the flow regulator to control the amount of gas entering the exhaust channel, thus enabling the stove to switch between normal and high-heat modes—a clever and efficient design.
[0019] Preferably, the valve body is further provided with a mounting part, the solenoid valve is disposed in the mounting part, and the inner wall of the mounting part is provided with an air inlet that communicates with the air inlet channel.
[0020] In this design, the installation section eliminates the need for additional space for the solenoid valve, thus saving space for the entire plug valve and allowing for a more compact arrangement of its components, thereby enhancing the valve's strength. The placement of the air inlet facilitates the entry of fuel gas into the air intake channel.
[0021] Preferably, the mounting portion is a cylindrical hole extending from the outside of the valve body to the inside of the valve body.
[0022] In this design, the mounting section leads directly to the outside of the valve body, allowing the solenoid valve to be directly installed into the mounting section from the outside.
[0023] Preferably, the plug valve further includes a plug valve core, an inner ring air outlet channel, and an outer ring air outlet channel. The plug valve core is used to open and close the passage between the air outlet channel and the inner ring air outlet channel, as well as the passage between the air outlet channel and the outer ring air outlet channel.
[0024] Preferably, the magnetic material is iron, cobalt, nickel, or alloys thereof.
[0025] In this design, iron, cobalt, nickel, or their alloys have good magnetic attraction properties, which helps them to be attracted towards the solenoid valve under the magnetic field generated by the coil, thereby detaching them from the valve port.
[0026] This utility model also provides a stove, which includes the above-mentioned stopcock valve.
[0027] Preferably, the cooktop includes a control unit electrically connected to the solenoid valve to control the current intensity supplied to the solenoid valve.
[0028] In this scheme, the control unit controls the current intensity supplied to the solenoid valve, thereby controlling the magnitude of the magnetic field generated by the coil, and thus controlling the insertion or removal of the flow regulator from the valve port.
[0029] The positive progress effect of the utility model lies in: the setting of the electromagnetic valve is beneficial to control the on-off of the gas from the inlet channel to the outlet channel; the cross-sectional area of the center through hole of the flow adjusting piece is smaller than the cross-sectional area of the valve port, and such setting makes the cross-sectional area of the gas flowing through the valve port when the flow adjusting piece inserts into the valve port smaller than the cross-sectional area of the gas flowing through the valve port when the flow adjusting piece leaves the valve port, that is, when the flow adjusting piece inserts into the valve port, the amount of the gas from the inlet channel to the outlet channel is small, at this time the cooker is in the normal mode, when the flow adjusting piece leaves the valve port, the amount of the gas from the inlet channel to the outlet channel is large, at this time the cooker is in the stir-frying mode, namely, the setting of the flow adjusting piece is beneficial to control the amount of the gas from the inlet channel to the outlet channel, so as to realize the switching of the cooker from the normal mode and the stir-frying mode; the flow adjusting piece is magnetic material so as to be easily adsorbed by the electromagnetic valve, thereby leaving the valve port to increase the gas flow into the outlet channel, so as to switch the cooker from the normal mode to the stir-frying mode; in addition, the above setting realizes the switching of the cooker from the normal mode and the stir-frying mode on the basis of not changing the original structure of the cooker, only by adding the flow adjusting piece, thereby reducing the cost. BRIEF DESCRIPTION OF DRAWINGS
[0030] Figure 1 It is a perspective structural schematic view of the plug valve according to an embodiment of the utility model.
[0031] Figure 2 It is another perspective structural schematic view of the plug valve according to an embodiment of the utility model.
[0032] Figure 3 It is a sectional structure schematic view when the plug valve according to an embodiment of the utility model is in the normal mode.
[0033] Figure 4 It is a sectional structure schematic view when the plug valve according to an embodiment of the utility model is in the stir-frying mode.
[0034] Figure 5 It is a perspective structural schematic view of the electromagnetic valve according to an embodiment of the utility model.
[0035] Figure 6 It is a perspective structural schematic view of the flow adjusting piece according to an embodiment of the utility model.
[0036] BRIEF DESCRIPTION OF DRAWINGS:
[0037] Plug valve 100
[0038] Valve body 110
[0039] Inlet channel 111
[0040] Valve port 112
[0041] Butt surface 1121
[0042] outlet passage 113
[0043] inlet 1141
[0044] cylindrical hole 1142
[0045] solenoid valve 120
[0046] spring 121
[0047] valve plug 123
[0048] flow regulating member 130
[0049] main body 131
[0050] abutting portion 132
[0051] central through hole 133
[0052] inner ring outlet passage 150
[0053] outer ring outlet passage 160 DETAILED DESCRIPTION
[0054] The utility model is further illustrated by examples in combination with the drawings, but the utility model is not limited in the scope of the examples.
[0055] As Figures 1-6 shown, the utility model provides a cock valve 100, which comprises a valve body 110, an inlet passage 111, a valve port 112 and an outlet passage 113 arranged in the valve body 110 in sequence and communicated with each other, a solenoid valve 120 arranged in the valve body 110 and used for opening and closing the valve port 112, and a flow regulating member 130 having a central through hole 133 communicated with the inlet passage 111 and the outlet passage 113 and inserted into the valve port 112, the cross-sectional area of the central through hole 133 being smaller than that of the valve port 112, and the flow regulating member 130 being a magnetic material; wherein the solenoid valve 120 is arranged on one side of the valve port 112 to attract the flow regulating member 130 to separate from the valve port 112.
[0056] In the embodiment, the electromagnetic valve 120 is arranged to control the on-off of the gas from the inlet channel 111 to the outlet channel 113; the flow regulating member 130 is a hollow cylinder, and the center through hole 133 of the hollow cylinder has a smaller cross-sectional area than the valve port 112, so that when the flow regulating member 130 is inserted into the valve port 112, the cross-sectional area of the gas flowing through the valve port 112 is smaller than that when the flow regulating member 130 is separated from the valve port 112, that is, when the flow regulating member 130 is inserted into the valve port 112, the amount of gas flowing from the inlet channel 111 to the outlet channel 113 is small, and at this time, the cooker is in the normal mode; when the flow regulating member 130 is separated from the valve port 112, the amount of gas flowing from the inlet channel 111 to the outlet channel 113 is large, and at this time, the cooker is in the stir-frying mode, that is, the flow regulating member 130 is arranged to control the amount of gas flowing from the inlet channel 111 to the outlet channel 113, so as to realize the switching of the cooker between the normal mode and the stir-frying mode; the flow regulating member 130 is a magnetic material so as to be easily attracted by the electromagnetic valve 120, thereby being separated from the valve port 112 to increase the gas flow into the outlet channel 113, so as to switch the cooker from the normal mode to the stir-frying mode; in addition, the above arrangement realizes the switching of the cooker between the normal mode and the stir-frying mode without changing the original structure of the cooker, and only by adding the flow regulating member 130, thereby reducing the cost.
[0057] It should be noted that the parameters of the internal components of the cooker, such as the nozzle aperture, can be adjusted according to different performance requirements; the position of the flow regulating member 130 is controlled by controlling the magnetic force, so as to control the size of the gas flow.
[0058] As shown in Figures 3-4 , the flow regulating member 130 is a hollow cylinder, and the hollow cylinder has a certain thickness.
[0059] In the embodiment, the flow regulating member 130 is a hollow cylinder, so that the gas can also flow into the outlet channel 113 through the center through hole 133 of the hollow cylinder without the flow regulating member 130 being separated from the valve port 112; in addition, the hollow cylinder has a certain thickness, so that the cross-sectional area of the center through hole 133 is smaller than that of the valve port 112, and by controlling the difference between the cross-sectional areas, the flow in the normal mode and the flow in the stir-frying mode can be controlled, so as to control the difference in firepower between the normal mode and the stir-frying mode.
[0060] As shown in Figures 3-4 , the hollow cylinder includes a main body 131 and an abutting portion 132 extending outward from the edge of one end of the main body 131, and the abutting portion 132 is arranged at the end of the main body 131 close to the electromagnetic valve 120; the valve port 112 is formed with an abutting surface 1121 facing the electromagnetic valve 120, and the abutting portion 132 abuts against the abutting surface 1121.
[0061] In the embodiment, the abutting portion 132 is arranged at one end of the main body 131 close to the electromagnetic valve 120, and abuts against the abutting surface 1121. The arrangement is beneficial to prevent the flow regulating member 130 from falling into the gas outlet passage 113 due to the impact of the gas when the gas passes through, thereby causing the gas outlet passage 113 to be blocked. In addition, the abutting surface 1121 and the abutting portion 132 have a large abutting area, which is relatively stable, so that the flow regulating member 130 is also not easy to fall into the gas inlet passage 111 to block the gas inlet passage 111. Those skilled in the art can also achieve the positioning of the flow regulating member 130 relative to the valve port 112 by other means.
[0062] As shown in Figures 3-4 The electromagnetic valve 120 includes a coil and a valve core and a spring 121, wherein the coil and the valve core are not shown in the figure; the valve core can move axially relative to the coil, the valve core is connected with a valve plug 123, the valve plug 123 is used to open and close the valve port 112, and the coil is used to attract the flow regulating member 130 to separate from the valve port 112. The spring 121 is used to press the valve plug 123 towards the valve port 112, so that the valve plug 123 always closes the valve port 112 in the state that the electromagnetic valve 120 is not powered.
[0063] In the embodiment, the coil generates a magnetic field to attract the valve core when powered, and the valve core pulls the valve plug 123 to open the valve port 112; in addition, the magnetic field generated by the coil when powered also acts on the flow regulating member 130, so that the flow regulating member 130 separates from the valve port 112 to increase the amount of gas entering the gas outlet passage 113; in summary, that is, the magnetic field generated by the coil in the embodiment can not only be used for the valve core to achieve the opening and closing of the valve port 112, but also can act on the flow regulating member 130 to control the amount of gas entering the gas outlet passage 113, that is, to achieve the switching of the stove from the ordinary mode and the explosive frying mode, which is a one-time two-achievement design and ingenious.
[0064] It should be noted that when the stove is in the normal mode, the control unit controls the current flowing into the electromagnetic valve 120 to be weak current, at this time the coil generates a weak magnetic field, which acts on the valve core and makes the valve core move away from the flow regulating member 130, the valve plug 123 also moves away from the flow regulating member 130 following the valve core, and the weak magnetic field also acts on the flow regulating member 130, but due to the weak magnetic field strength, the flow regulating member 130 cannot be separated from the valve port 112, so the gas will enter the gas outlet passage 113 through the central through hole 133 of the hollow cylinder, at this time the flow of gas flowing into the burner is a normal amount, which is used for the stove in the normal mode; when the stove is in the wok-searing mode, the control unit controls the current flowing into the electromagnetic valve 120 to be strong current, at this time the coil generates a strong magnetic field, which acts on the valve core and makes the valve core move away from the flow regulating member 130, the valve plug 123 also moves away from the flow regulating member 130 following the valve core, and the strong magnetic field also acts on the flow regulating member 130 to make the flow regulating member 130 separate from the valve port 112 and be attached to the valve plug 123, so the gas will enter the gas outlet passage 113 through the valve port 112, at this time the gas flowing into the burner is a large amount higher than the normal amount.
[0065] As shown in Figures 3-4 , the valve body 110 also has a mounting portion, the electromagnetic valve 120 is arranged in the mounting portion, and the inner wall of the mounting portion is provided with a gas inlet port 1141 communicating with the gas inlet passage 111. The abutting surface 1121 is a stepped surface arranged in the mounting portion.
[0066] In the embodiment, the mounting portion is arranged so that the arrangement of the electromagnetic valve 120 does not require additional space, i.e. saves the occupied space of the overall stopcock valve 100, and also makes the arrangement of each component of the stopcock valve 100 more compact, so as to enhance the strength of the stopcock valve 100; the arrangement of the gas inlet port 1141 is conducive to the entry of gas into the gas inlet passage 111.
[0067] As shown in Figures 3-4 , the mounting portion is a cylindrical hole 1142 extending from the outside of the valve body 110 to the inside of the valve body 110.
[0068] In the embodiment, the mounting portion directly leads to the outside of the valve body 110, and the electromagnetic valve 120 can be directly installed in the mounting portion from the outside.
[0069] As shown in Figures 3-4 , the stopcock valve 100 further comprises a stopcock valve core and an inner ring gas outlet passage 150 and an outer ring gas outlet passage 160, the stopcock valve core is used to open and close the passage between the gas outlet passage 113 and the inner ring gas outlet passage 150 and the passage between the gas outlet passage 113 and the outer ring gas outlet passage 160.
[0070] As shown in Figures 3-4 , the magnetic material is iron, cobalt, nickel or their alloys, etc.
[0071] In this embodiment, iron, cobalt, nickel, or their alloys have good magnetic attraction properties, which is beneficial for being attracted towards the solenoid valve 120 under the action of the magnetic field generated by the coil, thereby detaching from the valve port 112.
[0072] It should be noted that the magnetic material is not a permanent magnet or other material that is magnetic in itself, in order to avoid it being able to detach directly from the valve port 112 or directly adsorbed onto the metal valve body 110 in normal mode, thus preventing it from detaching.
[0073] This utility model also provides a stove, which includes the aforementioned stopcock valve 100.
[0074] like Figures 3-4 As shown, the cooktop includes a control unit, which is electrically connected to the solenoid valve 120 to control the current intensity supplied to the solenoid valve 120.
[0075] In this embodiment, the control unit controls the current intensity supplied to the solenoid valve 120, thereby controlling the magnitude of the magnetic field generated by the coil, and thus controlling the flow regulating element 130 to be inserted into or removed from the valve port 112.
[0076] It should be noted that the stove also includes a control panel, which includes a high-heat stir-fry button. The high-heat stir-fry button is connected to the control unit to generate a strong current. After the high-heat stir-fry button generates a strong current for a certain period of time, it automatically shuts off. At this time, the flow regulator 130 returns to the valve port 112 to achieve timed high-heat stir-frying.
[0077] The three modes of the stove in this embodiment are described in detail below:
[0078] Off mode: When the stove is not turned on, the solenoid valve 120 is in the closed state, the valve port 112 is closed, that is, the gas flow path is closed; at this time, the coil is not energized, the valve core does not move relative to the coil, the valve plug 123 abuts against the abutment part 132 and closes the hollow hole of the hollow cylinder to block the gas from entering the gas outlet channel 113 from the gas inlet channel 111.
[0079] Normal mode: When the stove is turned on, the control unit controls the current supplied to the solenoid valve 120 to be a weak current. At this time, the coil generates a weak magnetic field. This weak magnetic field acts on the valve core and causes the valve core to move away from the flow regulator 130. The valve plug 123 also moves away from the contact part 132 of the flow regulator 130 along with the valve core. At the same time, the weak magnetic field also acts on the flow regulator 130. However, due to the weak magnetic field strength, it is not possible to make the flow regulator 130 disengage from the valve port 112. Therefore, the gas will enter the gas outlet channel 113 through the hollow cylinder.
[0080] The strong current controlled by the control unit is input to the electromagnetic valve 120, and a strong magnetic field is generated in the coil, which acts on the valve core and makes the valve core move away from the flow regulating member 130, and the valve plug 123 also moves away from the abutting portion 132 of the flow regulating member 130, and the strong magnetic field also acts on the flow regulating member 130 to make the flow regulating member 130 separate from the valve port 112 and adhere to the valve plug 123, so that the gas enters the gas outlet channel 113 through the valve port 112, and the strong current input to the electromagnetic valve 120 is automatically turned off after a certain time, and at this time the flow regulating member 130 returns to the valve port 112 to realize the timed fierce fire frying.
[0081] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.
[0082] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, but these changes and modifications all fall within the protection scope of the present application.
Claims
1. A stopcock valve characterised in that, It comprises: a valve body, which is provided with an air inlet channel, a valve port and an air outlet channel in sequence and in communication with each other; a solenoid valve, which is arranged inside the valve body and used for opening and closing the valve port; and a flow regulating member, which has a central through hole in communication with the air inlet channel and the air outlet channel, is inserted into the valve port, the cross-sectional area of the central through hole is smaller than that of the valve port, and the flow regulating member is a magnetic material; wherein the solenoid valve is arranged on one side of the valve port to attract the flow regulating member away from the valve port.
2. The faucet valve of claim 1, wherein The flow regulating member is a hollow cylinder, which has a certain thickness.
3. The faucet valve of claim 2, wherein The hollow cylinder comprises a main body portion and an abutting portion extending outwardly from an edge of one end of the main body portion in a circumferential direction, and the abutting portion is arranged at the end of the main body portion close to the solenoid valve. An abutting surface facing the solenoid valve is formed at the valve port, and the abutting portion abuts against the abutting surface.
4. The faucet valve of claim 3, wherein The solenoid valve comprises a coil and a valve core, the valve core is axially movable relative to the coil, the valve core is connected with a valve plug, the valve plug is used for opening and closing the valve port, and the coil is used for attracting the flow regulating member away from the valve port.
5. The faucet valve of claim 3, wherein The valve body is further provided with a mounting portion, the solenoid valve is arranged in the mounting portion, and an air inlet in communication with the air inlet channel is arranged on the inner wall of the mounting portion.
6. The faucet valve of claim 5, wherein The mounting portion is a cylindrical hole extending from the outside of the valve body to the inside of the valve body.
7. The faucet valve of claim 1, wherein The plug valve further comprises a plug valve core and inner and outer ring air outlet channels, the plug valve core is used for opening and closing the passages between the air outlet channel and the inner ring air outlet channel and between the air outlet channel and the outer ring air outlet channel.
8. The faucet valve of claim 1, wherein The magnetic material is iron, cobalt, nickel or an alloy thereof.
9. A hob, characterized in that The cooktop comprises the plug valve according to any one of claims 1-8.
10. The cooktop of claim 9, wherein The cooktop comprises a control unit electrically connected to the solenoid valve to control the current intensity supplied to the solenoid valve.