CN114483990A - Plug valve and gas stove - Google Patents

Plug valve and gas stove Download PDF

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Publication number
CN114483990A
CN114483990A CN202110344451.7A CN202110344451A CN114483990A CN 114483990 A CN114483990 A CN 114483990A CN 202110344451 A CN202110344451 A CN 202110344451A CN 114483990 A CN114483990 A CN 114483990A
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CN
China
Prior art keywords
valve
knob
gas
valve core
rod
Prior art date
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Granted
Application number
CN202110344451.7A
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Chinese (zh)
Other versions
CN114483990B (en
Inventor
朱运波
随晶侠
戚正胜
陈国平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Original Assignee
Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
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.)
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Publication of CN114483990A publication Critical patent/CN114483990A/en
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Publication of CN114483990B publication Critical patent/CN114483990B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug 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
    • F16K5/02—Plug 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 with plugs having conical surfaces; Packings therefor
    • F16K5/0207—Plug 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 with plugs having conical surfaces; Packings therefor with special plug arrangement, e.g. special shape or built in means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/062—Construction of housing; Use of materials therefor of taps or cocks with conical plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug 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
    • F16K5/08—Details
    • F16K5/10—Means for additional adjustment of the rate of flow
    • F16K5/103—Means for additional adjustment of the rate of flow specially adapted for gas valves
    • F16K5/106—Means for additional adjustment of the rate of flow specially adapted for gas valves with pilot flame
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/126—Arrangement or mounting of control or safety devices on ranges

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

The invention discloses a plug valve and a gas stove, wherein the plug valve comprises a valve body, a valve core assembly and a knob switch assembly, the valve body is provided with a gas inlet and a first gas outlet and a second gas outlet which are respectively communicated with the gas inlet so as to form a gas channel; the valve core assembly comprises a first valve core and a second valve core, the first valve core is rotatably arranged in the gas channel, and the second valve core is rotatably arranged in the gas channel; the knob switch assembly is arranged on the valve body and is respectively connected with the first valve core and the second valve core so as to control the inner ring small fire quantity by driving the first valve core to rotate and adjust the gas outlet flow of the first gas outlet and control the outer ring large fire quantity by driving the second valve core to rotate and adjust the gas outlet flow of the second gas outlet. The invention improves the structure of the plug valve, improves the safety performance of the gas stove during firepower adjustment, realizes independent adjustment of big and small firepowers, and enlarges the firepower distribution range adjustable by users.

Description

Plug valve and gas stove
The present application claims priority from chinese patent application filed on 13/11/2020 of china patent office, application No. 202022636101.1, entitled "stopcock valve and gas cooker", the entire contents of which are incorporated by reference into the application.
Technical Field
The invention relates to the technical field of plug valves, in particular to a plug valve and a gas stove.
Background
In a gas stove or other cooking utensils, a gas plug valve is a valve body for manually adjusting and controlling the on-off of gas and adjusting the size of gas, and generally comprises a valve body, a valve core, a valve rod, an ignition switch, an electromagnetic valve and other additional devices.
The main working principle of the gas plug valve is as follows: the gas enters through the gas inlet of the valve body, sequentially passes through the electromagnetic valve, then enters the valve core, and finally is communicated with the side opening of the gas outlet pipe through the side opening of the valve core, so that the gas supply of the gas stove is realized.
At present, a gas plug valve of a gas stove is provided with a knob for adjusting large and small fire, the gas plug valve is formed by matching an aluminum die-cast valve body with a copper plug valve, and the aluminum die-cast valve body and the copper plug valve are in taper fit to play a role in lubricating and sealing molybdenum disulfide lubricating oil. However, the flow regulation of the gas plug valve can only be regulated according to a fixed angle, the fire quantity of big fire and small fire is integrally controlled by one knob, and the range of regulating the fire power by a user through the knob is small.
Disclosure of Invention
The invention mainly aims to provide a plug valve and a gas stove, and aims to realize independent adjustment of fire, so as to enlarge the adjustable fire distribution range of a user.
To achieve the above object, the present invention provides a plug valve including:
the valve body is provided with an air inlet, a first air outlet and a second air outlet which are respectively communicated with the air inlet so as to form a fuel gas channel;
the valve core assembly comprises a first valve core and a second valve core, the first valve core is rotatably arranged in the gas channel, and the second valve core is rotatably arranged in the gas channel; and
and the knob switch assembly is arranged on the valve body and is respectively connected with the first valve core and the second valve core so as to control the inner ring small fire quantity by driving the first valve core to rotate and adjust the gas outlet flow of the first gas outlet and control the outer ring large fire quantity by driving the second valve core to rotate and adjust the gas outlet flow of the second gas outlet.
In one embodiment, the rotary switch assembly includes:
the first valve rod is rotatably inserted in the valve body and is connected with the first valve core;
the first knob is arranged on the first valve rod, and the first valve core is driven to rotate through the first valve rod when the first knob rotates; and
The second knob and the first valve rod are coaxially arranged and are connected with the second valve core through a transmission assembly, and the second knob drives the second valve core to rotate through the transmission assembly when rotating.
In one embodiment, the second knob is disposed at least partially around the first knob such that the second knob is disposed coaxially with the first valve stem.
In one embodiment, the outer wall of the first knob and/or the second knob is provided with anti-slip lines.
In one embodiment, the transmission assembly comprises:
the gear set comprises a first gear and a second gear meshed with the first gear, and the first gear is sleeved on the first valve rod and connected with the second knob; and
and the second gear is sleeved on the second valve rod, and the second valve rod is rotatably inserted in the valve body and is connected with the second valve core.
In an embodiment, the second knob is provided with a through hole for the first valve rod to pass through and a sinking groove for the first knob to be partially accommodated, a limit block is arranged in the sinking groove, the position of the first knob corresponding to the limit block is provided with a limit groove, and the limit block is clamped into the limit groove to limit the rotation angle of the first knob.
In one embodiment, the first knob is rotated by an angle of 0 ° -175 °;
the rotation angle of the second knob is 0-90 degrees.
In one embodiment, the plug valve further comprises an electromagnetic valve, and the electromagnetic valve is arranged at the air inlet and is used for opening or closing the gas channel.
In one embodiment, the plug valve further comprises a toggle assembly, the first knob is connected to the first valve core in a first position and a second position in a pressing and switching manner through the first valve rod, and the first valve rod is in driving connection with the solenoid valve through the toggle assembly;
when the first knob is at the first position, the first valve rod drives the toggle assembly to drive the electromagnetic valve to close the gas channel;
when the first knob is at the second position, the first valve rod drives the toggle assembly to drive the electromagnetic valve to open the gas channel.
In an embodiment, the first valve rod is connected with the first valve core through an elastic member, when the first knob is in the second position when a pressing force is applied to the first knob, the elastic member is driven to compress through the first valve rod, and when the pressing force applied to the first knob is cancelled, the elastic member elastically expands to drive the first valve rod to drive the first knob to return to the first position.
In an embodiment, the elastic member is a spring, one end of the spring is sleeved on the first valve rod, and the other end of the spring is sleeved on the first valve core.
In one embodiment, the toggle assembly comprises:
one end of the ejector rod is connected with the first valve rod; and
the other end of the ejector rod is connected with the electromagnetic valve through the deflector rod;
when the first knob is at the second position, the ejector rod is driven by the first valve rod to press down one end of the deflector rod, and the other end of the deflector rod stirs the electromagnetic valve to open the gas channel;
when the first knob is at the first position, the ejector rod is driven by the first valve rod to move upwards and drive one end of the deflector rod, and the other end of the deflector rod is pulled back to the electromagnetic valve to close the gas channel.
In one embodiment, the rotary switch assembly further comprises:
the limiting piece is arranged in the valve body and used for limiting the first knob to rotate when the first knob is located at the first position; when the first knob is located at the second position, the limiting member releases the rotation limitation of the first knob, so that the first knob can rotate.
In one embodiment, the first valve stem comprises a valve stem body and a strut connected to the valve stem body; the limiting part comprises a limiting plate, the limiting plate is installed in the valve body and corresponds to the position of the supporting rod, the limiting plate is provided with a groove matched with the supporting rod, and the supporting rod is inserted in the groove to limit the rotation of the first valve rod.
In one embodiment, the plug valve further comprises an ignition switch assembly, and the ignition switch assembly is arranged in the valve body and used for igniting gas flowing out through the first gas outlet.
In one embodiment, the gas passage comprises a first gas passage and a second gas passage;
the first air outlet and the second air outlet are arranged on the valve body at intervals, and the air inlet is arranged on one side of the valve body back to the first air outlet and the second air outlet;
the first gas outlet and the gas inlet are communicated to form the first gas channel, and the second gas outlet and the gas inlet are communicated to form the second gas channel.
In one embodiment, the first valve core is arranged in the first fuel gas channel, and the second valve core is arranged in the second fuel gas channel;
The first valve core and the second valve core are arranged side by side, the first valve core is arranged right opposite to the first air outlet, and the second valve core is arranged right opposite to the second air outlet.
In one embodiment, a cover plate is arranged on one side cover of the valve body, which faces away from the knob switch assembly, so as to cover the valve body.
In order to achieve the above object, the present invention further provides a gas stove, including the plug valve as described above, the plug valve including:
the valve body is provided with an air inlet, a first air outlet and a second air outlet which are respectively communicated with the air inlet so as to form a fuel gas channel;
the valve core assembly comprises a first valve core and a second valve core, the first valve core is rotatably arranged in the gas channel, and the second valve core is rotatably arranged in the gas channel; and
and the knob switch assembly is arranged on the valve body and is respectively connected with the first valve core and the second valve core so as to control the inner ring small fire quantity by driving the first valve core to rotate and adjust the gas outlet flow of the first gas outlet and control the outer ring large fire quantity by driving the second valve core to rotate and adjust the gas outlet flow of the second gas outlet.
In the technical scheme of the invention, the plug valve comprises a valve body, a valve core assembly and a knob switch assembly, and the valve body is provided with an air inlet, a first air outlet and a second air outlet which are respectively communicated with the air inlet so as to form a fuel gas channel; the valve core assembly comprises a first valve core and a second valve core, the first valve core is rotatably arranged in the fuel gas channel, and the second valve core is rotatably arranged in the fuel gas channel; the knob switch assembly is arranged on the valve body and is respectively connected with the first valve core and the second valve core so as to control the inner ring small fire amount by driving the first valve core to rotate and adjust the gas outlet flow of the first gas outlet and control the outer ring large fire amount by driving the second valve core to rotate and adjust the gas outlet flow of the second gas outlet, thereby realizing the function of independently adjusting the large fire and the small fire and increasing the adjustable fire distribution range of a user.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a cross-sectional view of one embodiment of a plug valve of the present invention;
FIG. 2 is a partial cross-sectional view of another alternate view of an embodiment of the plug valve of the present invention shown in an exploded view;
FIG. 3 is a cross-sectional view of another alternative view of an embodiment of a plug valve in accordance with the present invention.
The reference numbers indicate:
reference numerals Name(s) Reference numerals Name (R)
100 Valve body 100a Air inlet
200 Valve core assembly 210 First valve core
300 Knob switch assembly 220 Second valve core
400 Electromagnetic valve 330 Second knob
310 First valve rod 350 Gear set
320 First knob 351 First gear
340 Second valve stem 360 Top rod
352 Second gear 380 Elastic piece
370 Deflector rod 391 Groove
390 Limiting plate 110 Cover plate
500 Ignition switch assembly 120 Cover body
311 Supporting rod
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In gas cookers and other cooking utensils, a gas plug valve is a valve body used for manually adjusting and controlling the on-off of gas and adjusting the size of gas, and generally comprises a valve body, a valve core, a valve rod, an ignition switch, an electromagnetic valve and other additional devices.
The main working principle of the gas plug valve is as follows: the gas enters through the gas inlet of the valve body, sequentially passes through the electromagnetic valves, then enters the valve core, and finally is communicated with the side opening of the gas outlet pipe through the side opening of the valve core, so that the gas supply of the gas stove is realized.
In an exemplary technology, a gas plug valve of a gas stove is provided with a knob for adjusting large and small fire, the gas plug valve is formed by matching a valve body which is formed by aluminum die casting with a plug valve which is made of copper, the gas plug valve and the valve body are in taper fit, and lubricating and sealing effects are achieved by using molybdenum disulfide lubricating oil. However, the flow regulation of the gas plug valve can only be regulated according to a fixed angle, the fire amount of big fire and small fire is integrally controlled by one knob, and the range of regulating the fire power by a user through the knob is small.
In order to realize independent adjustment of large and small flames and enlarge the adjustable firepower distribution range of a user, the invention provides a plug valve which is suitable for various gas combustion appliances, in particular to a gas stove, of which the flame size needs to be adjusted, and the plug valve is not limited in the position.
Referring to fig. 1 and 2, in an embodiment of the present invention, the plug valve includes a valve body 100, a valve core assembly 200 and a knob switch assembly 300, the valve body 100 is provided with an air inlet 100a and a first air outlet (not shown) and a second air outlet (not shown) respectively communicated with the air inlet 100a to form a gas channel; the valve core assembly 200 includes a first valve core 210 and a second valve core 220, the first valve core 210 is rotatably disposed in the gas passage, and the second valve core 220 is rotatably disposed in the gas passage; the knob switch assembly 300 is disposed on the valve body 100 and is connected to the first valve core 210 and the second valve core 220, respectively, for controlling the inner ring small fire amount by driving the first valve core 210 to rotate and adjust the gas outlet flow of the first gas outlet, and controlling the outer ring large fire amount by driving the second valve core 220 to rotate and adjust the gas outlet flow of the second gas outlet.
In this embodiment, the valve body 100 may be made of die-cast aluminum, and the valve core assembly 200 may be made of metal material such as copper, and may also be made of a combination of metal and plastic, where specific materials of the valve body 100 and the valve core assembly 200 are not limited.
The air output of the first air outlet and the air output of the second air outlet may be the same or different, for example, the first air outlet is a small fire outlet, and the second air outlet is a big fire outlet, or the first air outlet may be a big fire outlet, and the second air outlet is a small fire outlet, which is not limited herein. In this embodiment, the first air outlet is used as a small fire outlet, and the second air outlet is used as a large fire outlet.
It should be noted that the first valve core 210 and the second valve core 220 can be connected to the handle shaft through elastic members, respectively, and the extending end of the handle shaft can be equipped with an inner ring knob and an outer ring knob which can adjust the fire independently. When using this plug valve, the first case 210 of manual rotatory inner ring knob accessible handle axle drive rotates, and rotatory outer ring knob accessible handle axle drives the rotation of second case 220, and at rotatory in-process, the area size of the cross section of gas channel changes thereupon, and then the control flows through the gas flow size of first gas outlet and second gas outlet to realize independently adjusting the big fire flame of gas-cooker and the function of little fire flame.
In this embodiment, the gas channel of the plug valve may include a first gas channel and a second gas channel, the first gas outlet and the second gas outlet may be disposed on the valve body 100 at an interval, and the gas inlet 100a may be disposed on a side of the valve body 100 opposite to the first gas outlet and the second gas outlet, so as to shorten the length of the gas channel and further reduce the overall volume of the plug valve; the first gas outlet is communicated with the gas inlet 100a to form a first gas channel, and the second gas outlet is communicated with the gas inlet 100a to form a second gas channel. Of course, in some other embodiments, the gas channel may also adopt other structures, and is not limited herein.
In this embodiment, the first valve core 210 may be disposed in the first fuel gas channel, and the second valve core 220 may be disposed in the second fuel gas channel; the first valve core 210 and the second valve core 220 may be arranged side by side, the first valve core 210 may be arranged opposite to the first air outlet, and the second valve core 220 may be arranged opposite to the second air outlet. So set up, also can shorten the length of gas passageway, and then reduce the whole volume of plug valve.
It can be understood that, in the invention, the valve body 100 of the plug valve is provided with the air inlet 100a and the first air outlet and the second air outlet which are respectively communicated with the air inlet 100a to form a gas channel, the valve core assembly 200 comprises the first valve core 210 and the second valve core 220, the first valve core 210 is rotatably arranged in the gas channel, the second valve core 220 is rotatably arranged in the gas channel, and the knob switch assembly 300 is arranged on the valve body 100 and is respectively connected with the first valve core 210 and the second valve core 220, so as to control the inner ring small fire quantity by driving the first valve core 210 to rotate and adjust the gas outlet flow of the first air outlet, and control the outer ring large fire quantity by driving the second valve core 220 to rotate and adjust the gas outlet flow of the second air outlet, thereby realizing the independent big and small fire adjusting function and increasing the fire distribution range adjustable by users.
In some practical scenes, the plug valve of the existing gas stove is a knob which integrally controls the fire amount of big fire and small fire, namely one knob controls two gas channels, when the knob of the gas plug valve rotates to a certain angle, the gas channels are not closed practically, the flow of the gas outlet of the valve body is small, the combustion state is possibly not enough to be maintained, but the gas still continuously flows out at the moment, so that the danger of deflagration and the like can be generated, and certain potential safety hazards exist.
In this regard, the plug valve of the present invention is further improved by:
in an embodiment, referring to fig. 1 and 2, the knob switch assembly 300 of the plug valve may include a first stem 310, a first knob 320, and a second knob 330, the first stem 310 being rotatably inserted into the valve body 100 and connected to the first valve core 210; the first knob 320 is arranged on the first valve rod 310, and the first knob 320 drives the first valve core 210 to rotate through the first valve rod 310 when rotating; the second knob 330 is coaxially disposed with the first valve stem 310 and connected to the second valve core 220 through a transmission assembly, and the second knob 330 rotates to drive the second valve core 220 to rotate through the transmission assembly. So set up, the user accessible first knob 320 independently adjusts the small fire flame size, independently adjusts the big fire flame size through second knob 330, has realized the independent regulation of big fire, and the scope of adjustable firepower distribution is wide, can close the gas channel conscientiously, has avoided plug valve to lead to the gas to leak because of the gas channel is not conscientiously closed under specific rotation angle, has improved the security performance of gas-cooker when firepower is adjusted.
In this embodiment, the first knob 320 rotates to drive the first valve core 210 to rotate through the first valve rod 310 so as to independently adjust and control the gas outlet flow of the first gas outlet, and the second knob 330 rotates to drive the second valve core 220 to rotate so as to independently adjust and control the gas outlet flow of the second gas outlet. Big fire of big or small fire can independently be adjusted to the plug valve of this embodiment, when improving the convenience of user operation, has also greatly promoted the security that combustion apparatus used.
Further, referring to fig. 1 and 2, the second knob 330 may be disposed at least partially around the first knob 320 such that the second knob 330 is disposed coaxially with the first valve stem 310. So set up, the whole volume of reducible plug valve, convenience of customers manual regulation firepower size.
It is worth mentioning that the outer walls of the first knob 320 and/or the second knob 330 can be provided with anti-slip lines to increase the friction resistance and improve the convenience of the fire adjustment of the plug valve.
During production and assembly, the second knob 330 may be provided with a through hole for the first valve rod 310 to pass through and a sinking groove for the first knob 320 to partially accommodate, so that the second knob 330 may be disposed around the first knob 320 to form an inner and outer ring knob, wherein the inner ring knob may control a small amount of fire, the outer ring knob may control a large amount of fire, the inner ring knob may actually close the corresponding gas channel, and the outer ring knob may actually close the corresponding gas channel.
In one embodiment, referring mainly to fig. 1, the transmission assembly may include a gear set 350 and a second valve rod 340, the gear set 350 includes a first gear 351 and a second gear 352 engaged with the first gear 351, the first gear 351 is sleeved on the first valve rod 310 and connected with the second knob 330; the second gear 352 is sleeved on the second valve stem 340, and the second valve stem 340 is rotatably inserted into the valve body 100 and connected to the second valve core 220.
Of course, in other embodiments, more gear combinations may be used, and the specific number of gears in the gear set 350 and the specific configuration of the other components of the transmission assembly are not limited herein.
It can be understood that the second knob 330 can sequentially drive the first gear 351, the second gear 352 and the second valve rod 340 to rotate when rotating, so as to adjust the rotation angle of the second valve core 220 and control the gas flow flowing out of the second gas outlet, thereby realizing the function of adjusting the flame size of the second gas outlet of the gas stove.
In this embodiment, the second knob 330 may be sleeved on an outer layer below the first knob 320, or may be spaced from the first knob 320 along the axial direction thereof, and the second knob 330 may share the first valve stem 310 with the first knob 320, and is connected to the second valve core 220 through gear transmission, so as to control the gas amount at the big fire outlet (second gas outlet), thereby adjusting the fire amount of the big fire at the outer ring of the gas combustion appliance.
In some embodiments, referring to fig. 1, the plug valve may further include an ignition switch assembly 500, the ignition switch assembly 500 being disposed within the valve body 100 for igniting the gas flowing out through the first gas outlet. So set up, realized igniteing first gas outlet, in addition, place ignition switch assembly 500 in valve body 100, also reduced the whole volume of this plug valve.
It should be noted that when the plug valve is ignited, the first knob 320 can be pressed down first, and then the first knob 320 can be rotated in the counterclockwise direction or the clockwise direction to trigger the ignition switch assembly 500 to perform the ignition operation. Of course, in some other embodiments, the ignition switch assembly 500 may be triggered to perform the ignition operation by directly rotating the first knob 320, and only a reasonable limit design is required to implement different ignition operation modes, which is not limited herein.
In order to control the gas flow at the gas inlet 100a to prevent gas leakage, in an embodiment, referring mainly to fig. 2 and 3, the plug valve may further include a solenoid valve 400, and the solenoid valve 400 is disposed at the gas inlet 100a and is used to open or close a gas passage.
In this embodiment, the electromagnetic valve 400 may be a flameout protection electromagnetic valve 400, which can control the opening and closing of the gas passage according to the combustion state of the flame, and ensure the gas supply cutoff when the flame is extinguished, thereby greatly improving the safety of the plug valve.
In this embodiment, the plug valve may further include a toggle assembly, the first knob 320 is connected to the first valve core 210 in a first position and a second position in a pressing and switching manner through the first valve rod 310, and the first valve rod 310 is in driving connection with the solenoid valve 400 through the toggle assembly; when the first knob 320 is at the first position, the first valve rod 310 drives the toggle assembly driving solenoid valve 400 to close the gas channel; when the first knob 320 is at the second position, the first valve rod 310 drives the toggle assembly driving solenoid valve 400 to open the gas channel.
Further, referring to fig. 1 and 2, the toggle assembly may include a push rod 360 and a toggle lever 370, one end of the push rod 360 is connected with the first valve rod 310, and the other end of the push rod 360 is connected with the solenoid valve 400 through the toggle lever 370 for triggering the solenoid valve 400 to open or close the gas passage.
When the first knob 320 is pressed from the first position to the second position, the ejector rod 360 is driven by the first valve rod 310 to press down one end of the deflector rod 370, and the other end of the deflector rod 370 moves the electromagnetic valve 400 to open the gas channel; when the first knob 320 is pressed from the second position to the first position, the plunger 360 is driven by the first valve rod 310 to move upward and drive one end of the toggle rod 370, and the other end of the toggle rod 370 retracts the electromagnetic valve 400 to close the gas channel.
In this embodiment, the first stem 310 and the first valve core 210 may be connected by an elastic member 380 such as a spring, so that the first knob 320 may be pressably disposed on the first stem 310. With this arrangement, the solenoid valve 400 can be controlled to open or close the gas passage by pressing the first knob 320, thereby improving the convenience of operation.
When the elastic member 330 is a spring, one end of the spring may be sleeved on the first valve rod 310, and the other end of the spring may be sleeved on the first valve element 210.
It should be noted that, when the first knob 320 is located at the second position by applying the pressing force, the elastic member is driven to compress by the first valve rod 310, and when the pressing force applied to the first knob 320 is cancelled, the elastic member is elastically extended, and the first valve rod 310 is driven to drive the first knob 320 to return to the first position.
In addition, the second valve rod 340 and the second valve core 220 can also be connected by an elastic element 380 such as a spring, so that the second valve core 220 is driven to rotate by the second valve rod 340 when the second knob 330 is rotated, and further the gas outlet flow of the second gas outlet is adjusted.
Based on the above embodiment, in order to realize independent adjustment of small fire adjustment, facilitate user operation, and improve safety of gas usage, in an embodiment, referring to fig. 1 to 3, the first knob 320 is disposed on the valve body 100 in a first position and a second position in a press-switchable manner, the first valve rod 310 includes a valve rod body and a support rod 311 connected to the valve rod body, and the knob switch assembly 300 further includes a limiting member, and the limiting member is installed in the valve body 100.
When the first knob 320 is at the first position, the rod 311 of the first valve rod 310 is engaged with the groove of the position limiter to limit the rotation of the first knob 320. At this time, the plug valve is in the ignition off state.
When the first knob 320 is at the second position, the first knob 320 is pressed, the supporting rod 311 of the first valve rod 310 is separated from the limiting member, and the first valve rod 310 enters the rotatable region from the limiting region; the first valve rod 310 is pressed and drives the shift lever 370 to move to the position where the electromagnetic valve 400 is triggered to open through the ejector rod 360, so that a gas channel is opened; the first knob 320 can rotate to drive the first valve core 210 to rotate so as to adjust the gas outlet flow of the first gas outlet; the second knob 330 can rotate to drive the second valve core 220 to rotate, so as to adjust the gas outlet flow of the second gas outlet. At this time, the plug valve is in an ignition on state.
In this embodiment, referring mainly to fig. 2, the limiting member may include a limiting plate 390, the limiting plate 390 is installed in the valve body 100 and is disposed corresponding to the position of the supporting rod 311, the limiting plate 390 is provided with a groove 391 matched with the supporting rod 311, and the supporting rod 311 is inserted in the groove 391 to limit the rotation of the first valve rod 310. The rod 311 may be cylindrical, and the shape of the groove 391 may be adapted to the shape of the rod 311 of the first valve stem 310.
The stopper may be a single structure similar to the integrally formed stopper plate 390, or may be a stopper structure formed by combining a plurality of components, which is not limited herein.
When adjusting the small fire firepower, the first knob 320 is rotatory to drive the first valve rod 310 and rotate for the elastic component 380 compression deformation of the first valve rod 310 other end rotates along the direction of predetermineeing, and the elastic component 380 rotates and drives the first case 210 of being connected rather than rotatory, changes the area size of the cross section of first gas passageway, with the gas flow size of adjustment first gas outlet, and then makes the small fire flame size of inner ring can independent control.
When the fire power of big fire is adjusted, the second knob 330 rotates to drive the second valve rod 340 to rotate through the transmission assembly, so that the elastic part 380 at the other end of the second valve rod 340 is compressed and deformed and rotates along the preset direction, the elastic part 380 rotates to drive the second valve core 220 connected with the elastic part to rotate, the area of the cross section of the second fuel gas channel is changed, the gas flow of the second gas outlet is adjusted, and the flame size of the big fire of the outer ring can be independently controlled.
Further, in some embodiments, the second knob 330 may be provided with a through hole for the first valve rod 310 to pass through and a sinking groove for the first knob 320 to be partially accommodated, a limiting block is disposed in the sinking groove, a limiting groove is disposed at a position of the first knob 320 corresponding to the limiting block, and the limiting block is clamped into the limiting groove to limit the rotation angle of the first knob 320.
It can be understood that, with the above-mentioned limit structure, the rotation angle of the first knob 320 in this embodiment can be 0-175 °, and the rotation angle of the second knob 330 can be 0-90 °. Of course, in some other embodiments, the rotational angle ranges of the first knob 320 and the second knob 330 may also be fine-tuned by adjusting the limit structure to appropriately increase or decrease the user-adjustable fire power distribution range.
In this embodiment, when the rotation angle of the first knob 320 is increased to 90 °, the gas flow rate of the first gas outlet (inner ring) is maximized. At this time, the rotation angle of the first knob 320 is continuously increased to 175 °, and the gas flow rate of the first gas outlet starts to gradually decrease after the maximum value is maintained for a certain interval, and reaches the minimum value at 175 °. After the first knob 320 is opened, the second knob 330 can be rotated counterclockwise (in other embodiments, it can also be set to rotate clockwise, which is not limited herein), and is driven by the gear set 350 and the second valve stem 340 to control the gas flow rate at the second gas outlet (outer ring). The second knob 330 is limited by the first knob 320, the rotation angle range thereof can be 0-90 degrees, the gas flow of the second gas outlet is gradually increased in the interval, and reaches the maximum at 90 degrees, but the rotation angle of the second knob 330 cannot be larger than the rotation angle of the first knob 320. When the rotation angle of the second knob 330 returns to 0 °, the gas channel corresponding to the second gas outlet is closed; when the rotation angle of the first knob 320 returns to 0 °, the ring gas channel corresponding to the first gas outlet is closed at the same time.
It should be noted that when the current rotation angle Φ of the first knob 320 is within the range of 0 ° -90 °, the rotation angle of the second knob 330 is limited within the range of 0 ° - Φ, and at this time, if the outer ring fire amount is to be increased continuously, the inner ring fire amount should be increased at the same time, so as to avoid uneven heating of the inner and outer rings on the cooker surface.
In some embodiments, referring to fig. 1, a side of the valve body 100 facing away from the knob switch assembly 300 may be covered with a cover plate 110 to cover the bottom of the valve body 100. In addition, a cover body 120 can be covered on the valve body 100 at a position corresponding to the first valve rod 310 and the gear set 350, so as to prevent parts such as the gear set 350 on the top of the valve body 100 from being exposed, and improve the overall aesthetic property of the plug valve while prolonging the service life of the parts.
The cover plate 110 and the cover 120 may be made of a metal material such as die-cast aluminum similar to the valve body 100, but not limited thereto.
The invention also provides a gas stove, which comprises the plug valve, the specific structure of the plug valve refers to the embodiment, and the gas stove provided by the invention comprises all the schemes of all the embodiments of the plug valve, so that the gas stove at least has the same technical effects as the plug valve, and the technical effects are not explained in the specification.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (19)

1. A plug valve, comprising:
the valve body is provided with an air inlet, a first air outlet and a second air outlet which are respectively communicated with the air inlet so as to form a fuel gas channel;
the valve core assembly comprises a first valve core and a second valve core, the first valve core is rotatably arranged in the gas channel, and the second valve core is rotatably arranged in the gas channel; and
and the knob switch assembly is arranged on the valve body and is respectively connected with the first valve core and the second valve core so as to control the inner ring small fire quantity by driving the first valve core to rotate and adjust the gas outlet flow of the first gas outlet and control the outer ring large fire quantity by driving the second valve core to rotate and adjust the gas outlet flow of the second gas outlet.
2. A plug valve as defined in claim 1, wherein the rotary switch assembly comprises:
the first valve rod is rotatably inserted into the valve body and is connected with the first valve core;
the first knob is arranged on the first valve rod, and the first knob drives the first valve core to rotate through the first valve rod when rotating; and
the second knob and the first valve rod are coaxially arranged and are connected with the second valve core through a transmission assembly, and the second knob drives the second valve core to rotate through the transmission assembly when rotating.
3. The plug valve of claim 2, wherein the second knob is disposed at least partially around the first knob such that the second knob is disposed coaxially with the first valve stem.
4. The plug valve of claim 2, wherein an outer wall of the first knob and/or the second knob is provided with anti-slip threads.
5. A plug valve according to claim 2, wherein said drive assembly comprises:
the gear set comprises a first gear and a second gear meshed with the first gear, and the first gear is sleeved on the first valve rod and connected with the second knob; and
And the second valve rod is sleeved on the second gear, and the second valve rod is rotatably inserted in the valve body and is connected with the second valve core.
6. The plug valve according to claim 5, wherein the second knob is provided with a through hole for the first valve rod to pass through and a sinking groove for the first knob to be partially accommodated, a limiting block is arranged in the sinking groove, a limiting groove is arranged at a position of the first knob corresponding to the limiting block, and the limiting block is clamped in the limiting groove to limit the rotation angle of the first knob.
7. The plug valve of claim 6, wherein the first knob is rotated between 0 ° and 175 °;
the rotation angle of the second knob is 0-90 degrees.
8. The plug valve of claim 2, further comprising a solenoid valve disposed at the gas inlet and adapted to open or close the gas passageway.
9. The plug valve of claim 8, further comprising a toggle assembly, wherein said first knob is depressably switchable coupled to said first valve core in a first position and a second position via said first valve stem, said first valve stem being drivingly coupled to said solenoid valve via said toggle assembly;
When the first knob is at the first position, the first valve rod drives the toggle assembly to drive the electromagnetic valve to close the gas channel;
when the first knob is at the second position, the first valve rod drives the poking assembly to drive the electromagnetic valve to open the gas channel.
10. The plug valve of claim 9, wherein the first stem is connected to the first valve core by a resilient member, wherein when the first knob is depressed by the first stem in the second position, the resilient member is compressed by the first stem, and wherein when the depression force on the first knob is removed, the resilient member is elastically extended to drive the first stem to return the first knob to the first position.
11. The plug valve of claim 10, wherein the resilient member is a spring, one end of the spring is disposed on the first stem, and the other end of the spring is disposed on the first valve core.
12. A plug valve as defined in claim 10 wherein said dial assembly comprises:
one end of the ejector rod is connected with the first valve rod; and
The other end of the ejector rod is connected with the electromagnetic valve through the deflector rod;
when the first knob is at the second position, the ejector rod is driven by the first valve rod to press down one end of the deflector rod, and the other end of the deflector rod stirs the electromagnetic valve to open the gas channel;
when the first knob is at the first position, the ejector rod is driven by the first valve rod to move upwards and drive one end of the deflector rod, and the other end of the deflector rod is pulled back to the electromagnetic valve to close the gas channel.
13. A plug valve according to any one of claims 9 to 12, wherein the rotary switch assembly further comprises:
the limiting piece is arranged in the valve body and used for limiting the first knob to rotate when the first knob is located at the first position; when the first knob is located at the second position, the limiting piece relieves the rotation limitation on the first knob, so that the first knob can rotate.
14. The plug valve of claim 13, wherein the first valve stem comprises a valve stem body and a strut coupled to the valve stem body; the limiting part comprises a limiting plate, the limiting plate is installed in the valve body and corresponds to the position of the supporting rod, the limiting plate is provided with a groove matched with the supporting rod, and the supporting rod is inserted into the groove to limit the first valve rod to rotate.
15. The plug valve of claim 2 further comprising an ignition switch assembly disposed within said valve body for igniting gas flowing out through said first gas outlet port.
16. The plug valve of claim 1, wherein the gas passage comprises a first gas passage and a second gas passage;
the first air outlet and the second air outlet are arranged on the valve body at intervals, and the air inlet is arranged on one side of the valve body back to the first air outlet and the second air outlet;
the first gas outlet is communicated with the gas inlet to form the first gas channel, and the second gas outlet is communicated with the gas inlet to form the second gas channel.
17. The plug valve of claim 16, wherein said first spool is disposed in said first gas passage and said second spool is disposed in said second gas passage;
the first valve core and the second valve core are arranged side by side, the first valve core is arranged right opposite to the first air outlet, and the second valve core is arranged right opposite to the second air outlet.
18. The plug valve of claim 2, wherein a cover plate is provided on a side of said valve body facing away from said rotary switch assembly to cover said valve body.
19. A gas burner characterized in that it comprises a plug valve according to any one of claims 1 to 18.
CN202110344451.7A 2020-11-13 2021-03-30 Plug valve and gas stove Active CN114483990B (en)

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CN2020226361011 2020-11-13

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120025119A1 (en) * 2010-07-30 2012-02-02 Swagelok Company Anti-Extrusion Packing Support
CN104048082A (en) * 2013-03-13 2014-09-17 博西华电器（江苏）有限公司 Gas range and gas flow control device therefor
CN105546149A (en) * 2016-01-26 2016-05-04 宁波方太厨具有限公司 Gas stove flow control valve
WO2017156650A1 (en) * 2016-03-15 2017-09-21 李雪波 Gas valve capable of achieving synchronous change in both outer-ring fire and inner-ring fire
CN207554855U (en) * 2017-12-18 2018-06-29 中山联帮百朗士燃具电器有限公司 A kind of ultra-thin fuel gas plug valve
CN207778506U (en) * 2018-01-30 2018-08-28 广东万家乐厨房科技有限公司 Gas-cooker and combustion system
CN109630688A (en) * 2018-12-26 2019-04-16 佛山市顺德区美的洗涤电器制造有限公司 A kind of gas valve and gas utensil
CN208831808U (en) * 2018-07-30 2019-05-07 宁波来特燃气具有限公司 It can control two fire rows and have the gas valve of ever-burning flame function
CN211423430U (en) * 2019-12-20 2020-09-04 浙江博顿燃具科技有限公司 Plug valve

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120025119A1 (en) * 2010-07-30 2012-02-02 Swagelok Company Anti-Extrusion Packing Support
CN104048082A (en) * 2013-03-13 2014-09-17 博西华电器（江苏）有限公司 Gas range and gas flow control device therefor
CN105546149A (en) * 2016-01-26 2016-05-04 宁波方太厨具有限公司 Gas stove flow control valve
WO2017156650A1 (en) * 2016-03-15 2017-09-21 李雪波 Gas valve capable of achieving synchronous change in both outer-ring fire and inner-ring fire
CN207554855U (en) * 2017-12-18 2018-06-29 中山联帮百朗士燃具电器有限公司 A kind of ultra-thin fuel gas plug valve
CN207778506U (en) * 2018-01-30 2018-08-28 广东万家乐厨房科技有限公司 Gas-cooker and combustion system
CN208831808U (en) * 2018-07-30 2019-05-07 宁波来特燃气具有限公司 It can control two fire rows and have the gas valve of ever-burning flame function
CN109630688A (en) * 2018-12-26 2019-04-16 佛山市顺德区美的洗涤电器制造有限公司 A kind of gas valve and gas utensil
CN211423430U (en) * 2019-12-20 2020-09-04 浙江博顿燃具科技有限公司 Plug valve

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