CN116733996A - Gas valve and gas utensil - Google Patents

Gas valve and gas utensil Download PDF

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Publication number
CN116733996A
CN116733996A CN202310555660.5A CN202310555660A CN116733996A CN 116733996 A CN116733996 A CN 116733996A CN 202310555660 A CN202310555660 A CN 202310555660A CN 116733996 A CN116733996 A CN 116733996A
Authority
CN
China
Prior art keywords
valve
gas
connecting rod
rod
piece
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202310555660.5A
Other languages
Chinese (zh)
Inventor
谢启标
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.)
Zhongshan Leetron Gas Appliance Co ltd
Original Assignee
Zhongshan Leetron Gas Appliance 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.)
Filing date
Publication date
Application filed by Zhongshan Leetron Gas Appliance Co ltd filed Critical Zhongshan Leetron Gas Appliance Co ltd
Priority to CN202310555660.5A priority Critical patent/CN116733996A/en
Publication of CN116733996A publication Critical patent/CN116733996A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16K5/0242—Spindles and actuating 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • 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
    • F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
    • 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
    • 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
    • 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
    • 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

Abstract

The application discloses a gas valve and a gas appliance. The gas valve comprises a valve body, a valve rod assembly and a temperature control device, wherein a gas channel is arranged in the valve body; the valve rod assembly comprises a valve rod piece, the valve rod piece is rotatably arranged in the valve body and is partially positioned in the gas channel, the valve rod piece can move relative to the valve body along the axial direction of the valve rod piece, and a first tooth part is arranged at one end of the valve rod piece, which is positioned in the gas channel; the temperature control device comprises a thermal expansion valve and a connecting rod, wherein the thermal expansion valve is partially positioned in the gas channel, the connecting rod is positioned in the gas channel, a valve plate is arranged on the connecting rod and used for opening or closing the gas channel, one end of the connecting rod is in threaded connection with one end of the thermal expansion valve, and a second tooth part is arranged at the other end of the connecting rod; the first tooth portion and the second tooth portion are engaged. The connecting rod and the valve rod piece adopt the matched structure of tooth part meshing, so that the connecting rod can move smoothly along the axial direction of the valve rod piece, thereby ensuring the accurate control of the gas outlet quantity and the combustion temperature of the gas valve.

Description

Gas valve and gas utensil
Technical Field
The application relates to the technical field of air valves, in particular to a gas valve and a gas appliance.
Background
The gas valve is a device which is arranged on gas equipment such as an oven and the like and is used for controlling the fire power of a combustor. The temperature control device is arranged on some gas valves, and the combustion temperature of the gas equipment is set, so that the combustion temperature of the gas equipment is automatically controlled through the temperature control device. The temperature control device is connected with a valve rod piece of the gas valve through a connecting rod, the valve rod piece can drive the connecting rod to rotate, and the connecting rod can move along the axial direction of the valve rod piece. In the prior art, the connecting rod is connected with the valve rod piece through a non-circular hole (such as a square hole) arranged on the valve rod piece and a non-circular matching part arranged on the connecting rod, so that the valve rod piece can drive the connecting rod to rotate and can enable the connecting rod to axially move along the valve rod piece. The above-mentioned cooperation structure that adopts among the prior art, the structure is single to, the connecting rod can appear the jamming phenomenon along the axial movement of valve member in the use of gas valve, makes the gas valve's air output and the control of combustion temperature inaccurate.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides the gas valve, so that the connecting rod and the valve rod piece are in a diversified matching structure, and the connecting rod can move smoothly along the axial direction of the valve rod piece, thereby ensuring the accurate control of the gas outlet quantity and the combustion temperature of the gas valve.
The application also provides a gas appliance adopting the gas valve.
According to an embodiment of the first aspect of the application, the gas valve comprises a valve body, a valve rod assembly and a temperature control device, wherein a gas channel is arranged in the valve body; the valve rod assembly comprises a valve rod piece, the valve rod piece is rotatably arranged in the valve body and is partially positioned in the gas channel, the valve rod piece can move relative to the valve body along the axial direction of the valve rod piece, and a first tooth part is arranged at one end of the valve rod piece, which is positioned in the gas channel, around the rotation axis of the valve rod piece; the temperature control device comprises a thermal expansion valve and a connecting rod, wherein the thermal expansion valve is partially positioned in the gas channel, the connecting rod is positioned in the gas channel, a valve plate is arranged on the connecting rod and used for opening or closing the gas channel, one end of the connecting rod is in threaded connection with one end of the thermal expansion valve, and a second tooth part is arranged at the other end of the connecting rod; the first tooth part and the second tooth part are meshed, so that the connecting rod can rotate along with the valve rod piece and can move along the axial direction of the valve rod piece.
The gas valve provided by the embodiment of the application has at least the following beneficial effects: the connecting rod and the valve rod piece adopt the matching structure of the first tooth part and the second tooth part, so that the connecting rod can rotate along with the valve rod piece and can move along the axial direction of the valve rod piece, the matching structure between the connecting rod and the valve rod is diversified, and the connecting rod can move smoothly along the axial direction of the valve rod piece by adopting the matching structure of the tooth part, thereby ensuring the accurate control of the gas outlet quantity and the combustion temperature of the gas valve.
According to some embodiments of the application, one of the valve rod member and the connecting rod is provided with a circular hole extending along the axial direction, the other is provided with a connecting part extending along the radial direction of the valve rod member or the connecting rod, the first tooth part is arranged along the circumferential direction of the side wall of the circular hole, the second tooth part is arranged at the side part of the connecting part away from the valve rod member or the connecting rod, and the connecting part is inserted into the circular hole so as to enable the first tooth part and the second tooth part to be meshed.
According to some embodiments of the application, the connecting portion is an annular structure, and the second tooth portion is disposed along a circumferential direction of the connecting portion.
According to some embodiments of the application, the connecting portion is disposed on the connecting rod, and along an axial direction of the connecting rod, a side portion of the connecting portion away from the connecting rod is in an arc-shaped structure.
According to some embodiments of the application, an end of the connecting portion remote from the thermal expansion valve is provided with a lead-in surface.
According to some embodiments of the application, a connecting hole extending along the axial direction of the connecting rod is arranged at one end, close to the thermal expansion valve, of the connecting rod, a first thread is arranged on the side wall of the connecting hole, a connecting piece is arranged at one end, located at the gas channel, of the thermal expansion valve, a second thread is arranged on the side wall of the connecting piece, and the connecting rod is connected with the connecting piece through the first thread and the second thread.
According to some embodiments of the application, the gas channel is provided with a step part, and the valve plate is used for being attached to or separated from the step part so as to close or open the gas channel.
According to some embodiments of the application, a spool cavity is provided in the valve body, the spool cavity is rotatably provided with a spool, the spool is used for connecting or disconnecting the spool cavity with the gas channel, and a linkage mechanism is provided on the valve body and is used for linking the spool with the valve rod piece.
According to some embodiments of the application, the linkage comprises a driving gear and a driven gear meshed with each other, the driving gear being connected to the valve stem member, the driven gear being connected to the valve core.
A gas appliance according to an embodiment of the second aspect of the present application comprises a gas valve according to any one of the above.
The gas appliance provided by the embodiment of the application has at least the following beneficial effects: the connecting rod of the gas valve of the gas appliance and the valve rod piece adopt the matching structure of the first tooth part and the second tooth part, so that the connecting rod can rotate along with the valve rod piece and can move along the axial direction of the valve rod piece, the matching structure between the connecting rod and the valve rod is diversified, and the connecting rod can move smoothly along the axial direction of the valve rod piece by adopting the matching structure of the tooth part, thereby ensuring the accurate control of the gas outlet quantity and the combustion temperature of the gas valve and improving the user experience.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The application is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic perspective view of a gas valve according to an embodiment of the present application;
FIG. 2 is a partially exploded schematic illustration of the gas valve of the embodiment shown in FIG. 1;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a cross-sectional view of a gas valve according to one embodiment of the present application;
FIG. 5 is a schematic diagram of the connecting rod and the rod member of the gas valve according to an embodiment of the present application;
FIG. 6 is an enlarged view at B in FIG. 5;
FIG. 7 is a partially exploded view of another view of a gas valve according to one embodiment of the application;
fig. 8 is a perspective view of a valve cover of a valve body of a gas valve according to an embodiment of the present application.
Reference numerals:
the valve comprises a valve body 10, a fuel gas channel 11, a valve cover 12, a valve seat 13, a step part 14, a valve core cavity 15, a valve core 16, a driving gear 17 and a driven gear 18;
ignition switch seat 20, mounting groove 21, limit part 211, avoiding part 22, fastener 23;
ignition switch assembly 30, piezoelectric igniter 31, striker 32, spring 33, default 34, and spring plate 35;
the valve rod assembly 40, the valve rod piece 41, the circular hole 411, the first tooth part 412, the positioning platform 413, the toggle piece 42, the positioning spring 43 and the positioning piece 44;
a cover 50, a bending part 51 and a buckling hole 52;
the thermal expansion valve 60, the connecting rod 61, the connecting part 611, the second tooth part 612, the introducing surface 613, the connecting hole 614, the valve plate 62 and the connecting piece 63.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
In the description of the present application, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description and simplification of the description, and does not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the application.
In the description of the present application, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.
In the description of the present application, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present application can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
The gas valve of the embodiment of the first aspect of the application comprises a valve body 10, a valve rod assembly 40 and a temperature control device.
Specifically, referring to fig. 1, 4, 5 and 6, the valve body 10 includes a valve cover 12 and a valve seat 13, the valve cover 12 is fixedly connected with the valve seat 13 by a fixing member, and a gas passage 11 is provided in the valve body 10.
The valve rod assembly 40 comprises a valve rod member 41, the valve rod member 41 is rotatably arranged in the valve body 10 and is partially positioned in the gas channel 11, the valve rod member 41 can move relative to the valve body 10 along the axial direction of the valve rod member 41, and a first tooth part 412 is arranged at one end of the valve rod member 41, which is positioned in the gas channel 11, around the rotation axis of the valve rod member; the temperature control device comprises a thermal expansion valve 60 and a connecting rod 61, the thermal expansion valve 60 is partially positioned in the gas channel 11, the connecting rod 61 is positioned in the gas channel 11, a valve plate 62 is arranged on the connecting rod 61, the valve plate 62 is used for opening or closing the gas channel 11, one end of the connecting rod 61 is in threaded connection with one end of the thermal expansion valve 60, the other end of the connecting rod 61 is provided with a second tooth portion 612, the first tooth portion 412 is meshed with the second tooth portion 612, so that the connecting rod 61 can rotate along with the valve rod piece 41, and the connecting rod 61 can move along the axial direction of the valve rod piece 41.
When the combustion temperature of the gas appliance adopting the gas valve is increased and exceeds the set temperature of the thermal expansion valve 60, the liquid in the temperature sensing bulb of the thermal expansion valve 60 expands to generate pressure, the pressure acts on the valve plate 62 to enable the valve plate 62 to move in the gas channel 11, the connecting rod 61 can move along the axial direction of the valve rod member 41 due to the fact that the valve plate 62 is arranged on the connecting rod 61, and the connecting rod 61 can be driven to move along the axial direction of the valve rod member 41 due to the fact that the first tooth part 412 and the second tooth part 612 are in an engaged state by the movement of the valve plate 62 in the gas channel 11, so that the opening degree of the gas channel 11 is reduced, the flow rate of gas flowing through the valve plate 62 is reduced, and the combustion temperature of the gas appliance is reduced to the set temperature; conversely, when the combustion temperature of the gas appliance decreases, the thermal expansion valve 60 can move the valve plate 62 reversely, so as to increase the opening degree of the gas channel 11, increase the flow rate of the gas flowing through the valve plate 62, and increase the combustion temperature of the gas appliance to the set temperature.
Therefore, the connecting rod 61 and the valve rod piece 41 adopt the matching structure of the first tooth part 412 and the second tooth part 612, so that the connecting rod 61 can rotate along with the valve rod piece 41 and can move along the axial direction of the valve rod piece 41, the matching structure of the connecting rod 61 and the valve rod piece 41 is expanded, the matching structure between the connecting rod 61 and the valve rod is diversified, and the clamping stagnation phenomenon between the connecting rod 61 and the valve rod piece 41 can be avoided by adopting the matching structure of the tooth parts, the connecting rod 61 can move smoothly along the axial direction of the valve rod piece 41, and the accurate control of the gas outlet quantity and the combustion temperature of the gas valve is ensured.
Referring to fig. 4, 5 and 6, in some embodiments, the valve rod 41 is provided with a circular hole 411 extending in an axial direction, the connecting rod 61 is provided with a connecting portion 611, the connecting portion 611 extends in a radial direction of the connecting rod 61, the first tooth portion 412 is disposed along a circumferential direction of a side wall of the circular hole 411, the second tooth portion 612 is disposed at a side portion of the connecting portion 611 away from the connecting rod 61, and the connecting portion 611 is inserted into the circular hole 411 such that the first tooth portion 412 and the second tooth portion 612 are engaged.
As shown in fig. 6, in the present embodiment, the connection portion 611 has an annular structure, and the second tooth portion 612 is provided along the circumferential direction of the connection portion 611.
Therefore, the first tooth portion 412 is circumferentially arranged along the side wall of the circular hole 411, the second tooth portion 612 is circumferentially arranged along the connecting portion 611 away from the side wall of the connecting rod 61, concentricity of the first tooth portion 412 and the second tooth portion 612 during processing can be improved, blocking caused by excessive eccentricity of the connecting rod 61 can not be generated during rotation of the valve rod 41, opening of the gas valve is smooth, concentricity of the first tooth portion 412 and the second tooth portion 612 during processing is correspondingly improved, concentricity of assembly between the connecting rod 61 and the valve rod 41 is correspondingly improved, when a temperature control action is generated by the temperature control device, the connecting rod 61 moves more smoothly along the axial direction of the valve rod 41, a clamping stagnation phenomenon between the connecting rod 61 and the valve rod 41 is avoided, and accordingly, gas outlet quantity and combustion temperature of the gas valve are ensured to be controlled more accurately.
It will be appreciated that in some embodiments, the circular hole 411 may be provided at an end of the connection rod 61, and accordingly, the connection portion 611 is provided on the valve lever 41, as well as implementing the concept of the present application, which will not be described in detail herein.
Referring to fig. 6, the teeth of the first tooth part 412 are provided in plurality, the teeth of the first tooth part 412 are provided at intervals along the sidewall of the circular hole 411, and accordingly, the teeth of the second tooth part 612 are provided in plurality, the teeth of the second tooth part 612 are provided at intervals along the circumference of the connecting part 611 away from the sidewall of the connecting rod 61, whereby the connecting rod 61 and the valve rod member 41 can insert the connecting rod 61 into the circular hole 411 in a plurality of directions at the time of assembly, thereby facilitating the assembly of the connecting rod 61 and the valve rod member 41.
It should be noted that, the number of teeth of the first tooth portion 412 and the number of teeth of the second tooth portion 612 may be set according to specific situations, the greater the number of teeth of the first tooth portion 412 and the number of teeth of the second tooth portion 612, the greater the assembling direction between the connecting rod 61 and the valve rod, so that the assembling between the valve rod member 41 and the connecting rod 61 is more convenient.
Referring to fig. 4 and 6, in some embodiments, along the axial direction of the connecting rod 61, the side portion of the connecting portion 611 away from the connecting rod 61 is in an arc structure, in other words, along the axial direction of the connecting rod 61, the cross-sectional shape of the side portion of the connecting portion 611 away from the connecting rod 61 is in an arc shape, the distance from two ends of the arc-shaped side portion to the connecting rod 61 is smaller than the distance from the middle portion of the arc to the connecting rod 61, when the teeth of the second tooth portion 612 are formed on the arc-shaped side portion, the top of the teeth are in an arc shape, so that the contact surface when the teeth of the second tooth portion 612 are matched with the first tooth portion 412 is reduced, the machining errors of the first tooth portion 412 and the second tooth portion 612 can be reduced, the assembly precision of the connecting rod 61 and the valve rod 41 can be improved, the axial movement of the connecting rod 61 along the valve rod 41 is smoother, the occurrence of a clamping phenomenon between the connecting rod 61 and the valve rod 41 can be avoided, and the control of the gas outlet quantity and the combustion temperature of the gas valve can be ensured more precisely.
Referring to fig. 6, in some embodiments, an end of the connection portion 611 remote from the thermal expansion valve 60 is provided with an introduction surface 613, and the assembly efficiency between the connection rod 61 and the valve stem 41 can be further improved by providing the introduction surface 613.
Referring to fig. 4, in some embodiments, one end of the connecting rod 61 near the thermal expansion valve 60 is provided with a connecting hole 614 extending along the axial direction thereof, a side wall of the connecting hole 614 is provided with a first thread, one end of the thermal expansion valve 60 located at the gas channel 11 is provided with a connecting piece 63, a side wall of the connecting piece 63 is provided with a second thread, the connecting rod 61 and the connecting piece 63 are connected through the first thread and the second thread, when the gas valve is opened, the valve rod 41 is rotated, the valve rod 41 drives the connecting rod 61 to synchronously rotate, meanwhile, the connecting rod 61 rotates relative to the connecting piece 63 on the thermal expansion valve 60, and due to the fact that the connecting rod 61 and the connecting piece 63 are connected through threads, when the connecting rod 61 rotates relative to the connecting piece 63, the valve plate 62 moves towards the direction near the thermal expansion valve 60 at the same time, so that the valve plate 62 moves away from the closed position to open the gas channel 11; conversely, when the gas valve is closed, the valve rod 41 is reversely rotated, the valve rod 41 drives the connecting rod 61 to rotate, the connecting rod 61 rotates relative to the connecting piece 63 in the opposite direction when the gas valve is opened, and the connecting rod 61 simultaneously moves in the direction away from the thermal expansion valve 60 when the connecting piece 63 rotates in the opposite direction when the gas valve is opened. The valve plate 62 is moved to the closed position, thereby shutting off the gas passage 11.
Referring to fig. 4, in some embodiments, to facilitate the valve plate 62 to open or close the gas passage 11, the gas passage 11 is provided with a stepped portion 14, and the valve plate 62 is used to fit on the stepped portion 14 or separate from the stepped portion 14 to close or open the gas passage 11.
Referring to fig. 4, in some embodiments, a spool chamber 15 is provided in the valve body 10, the spool chamber 15 is rotatably provided with a spool 16, the spool 16 is used to connect or disconnect the spool chamber 15 from the gas passage 11, and a linkage mechanism is provided on the valve body 10, the linkage mechanism is used to linkage the spool 16 with the valve rod 41.
Referring to fig. 4, in the present embodiment, the linkage mechanism includes a driving gear 17 and a driven gear 18 which are engaged with each other, the driving gear 17 is connected with a valve rod member 41, the driven gear 18 is connected with a valve core 16, when the gas valve is opened, the valve rod member 41 is rotated, the valve rod member 41 drives the driving gear 17 to rotate, the driving gear 17 drives the driven gear 18 to rotate, the valve core 16 is rotated, and thus the valve core cavity 15 is communicated with the gas channel 11; when the gas valve is closed, the valve rod piece 41 is reversely rotated, the valve rod piece 41 drives the driving gear 17 to rotate, the driving gear 17 drives the driven gear 18 to rotate, the valve core 16 is rotated, and therefore the valve core cavity 15 and the gas channel 11 are disconnected.
Referring to fig. 1, 2 and 4, the ignition switch seat 20 is arranged on the valve body 10, the ignition switch seat 20 and the valve body 10 are of an integrated structure, the ignition switch seat 20 and the valve body 10 are integrated into a whole, the assembly procedure of assembling the ignition switch seat 20 to a gas valve is reduced, the assembly difficulty of the gas valve is reduced, and meanwhile, the volume of the gas valve can be reduced. The ignition switch base 20 is provided with a mounting groove 21, and the mounting groove 21 is used for mounting a piezoelectric igniter 31, a striker 32 and a spring 33 of the switch assembly. The ignition switch assembly 30 comprises a piezoelectric igniter 31, an impact piece 32, a spring 33 and an ignition needle, wherein the piezoelectric igniter 31, the impact piece 32 and the spring 33 are sequentially arranged in the mounting groove 21, the ignition needle is electrically connected with the piezoelectric igniter 31, and when the piezoelectric igniter 31 is started, electric sparks can be generated at the ignition needle to ignite fuel gas flowing out of the fuel gas valve.
The impact piece 32 is arranged in the mounting groove 21, one end of the spring 33 is abutted against the impact piece 32, the other end of the spring 33 is abutted against the side wall of the mounting groove 21, the impact piece 32 can move in the direction away from and close to the piezoelectric igniter 31 in the mounting groove 21, when the impact piece 32 moves in the direction away from the piezoelectric igniter 31 under the action of external force, the impact piece 32 compresses the spring 33, so that the spring 33 generates thrust acting on the impact piece 32, power for impacting the piezoelectric igniter 31 is provided for the impact piece 32, when the external force applied to the impact piece 32 is removed, the impact piece 32 moves in the direction close to the piezoelectric igniter 31 under the action of the spring 33, and impacts a trigger switch of the piezoelectric igniter 31, so that the piezoelectric igniter 31 is started, and electric sparks are generated at an ignition needle to ignite fuel gas flowing out of the fuel gas valve.
Referring to fig. 1, 2 and 4, the valve rod assembly 40 further includes a striking member 42, the valve rod member 41 is disposed in the valve body 10 and partially located in the gas channel 11, the valve rod member 41 can rotate on the valve body 10 along its own axis, and the valve rod member 41 can also move relative to the valve body 10 along its own axis, the striking member 42 is disposed in the valve rod member 41 and can rotate with the valve rod member 41, and the striking member 32 can be struck by the striking member 42 to move in a direction away from the piezoelectric igniter 31, so that the spring 33 accumulates power.
Referring to fig. 2 and 3, in some embodiments, the side wall of the mounting groove 21 is provided with the avoiding portion 22, one end of the striking member 42 away from the valve rod 41 can be penetrated through the avoiding portion 22, when the valve rod 41 rotates, the striking member 42 is driven to rotate synchronously, one end of the striking member 42 away from the valve rod abuts against the end of the striking member 32, so that the striking member 32 moves in the mounting groove 21 in a direction away from the piezoelectric igniter 31, the striking member 32 compresses the spring 33, when the valve rod 41 rotates to a certain position, the striking member 42 is separated from contact with the striking member 32, and the striking member 32 moves in a direction close to the piezoelectric igniter 31 under the action of the spring 33, so that the striking member 32 strikes the piezoelectric igniter 31 to generate a pulse, and thus the ignition needle generates a spark.
The matched structure of the poking part 42 and the end part of the striking part 32 in butt joint is adopted, accessories can be reduced, the structure of the gas valve is simplified, and the matching precision is improved.
The relief portion 22 may be a bar-shaped hole provided in the side wall of the mounting groove 21, or may be a notch provided in the upper end edge of the mounting groove 21.
It can be understood that a striking piece may be further disposed on the striking piece 32, where the striking piece is disposed on a side portion of the striking piece 32 along a direction away from the striking piece 32, and the striking piece 42 of the valve rod assembly 40 is matched with the striking piece, so that the striking piece 32 can be moved along a direction away from the piezoelectric igniter 31, thereby achieving the purpose of striking the piezoelectric igniter 31 and achieving ignition, which is not limited herein.
Referring to FIG. 3, in some embodiments, the striker 32 is provided with a default portion 34 on the side facing the valve stem 41, the default portion 34 being configured to clear the toggle member 42 when the valve stem assembly 40 is returned to the original position, so as to avoid the striker 32 obstructing the return of the valve stem assembly 40 when the gas valve is closed.
Specifically, as shown in fig. 3, the default portion 34 is disposed on the striker 32, so that an inclined surface is formed on the surface of the striker 32, and when the valve stem assembly 40 is returned, the end of the toggle member 42 away from the valve stem member 41 can be smoothly returned through the inclined surface.
Referring to fig. 1 and 2, in some embodiments, the ignition switch base 20 is provided with a cover 50, the cover 50 is buckled with the mounting groove 21, and the piezoelectric igniter 31, the impact member 32 and the spring 33 can be covered in the mounting groove 21 through the cover 50, so that the piezoelectric igniter 31, the impact member 32 and the spring 33 are protected through the cover 50, and the overall appearance of the gas valve is attractive.
Referring to fig. 1 and 2, in some embodiments, one end of the cover 50 has a bent portion 51, the bent portion 51 is provided with a fastening hole 52, a corresponding side wall of the ignition switch base 20 is provided with a fastening piece 23, when the cover 50 is assembled on the ignition switch base 20, the fastening piece 23 on the ignition switch base 20 is fastened to the fastening hole 52 on the bent portion 51, and the end of the cover 50 away from the bent portion 51 is fixedly connected with the ignition switch base 20 through a fixing piece, so that the assembly of the cover 50 on the ignition switch base 20 can be realized, and the assembly structure of the cover 50 is simplified.
It should be noted that the cover 50 may be further assembled to the ignition switch base 20 by other assembling structures, which will not be described in detail herein.
Referring to fig. 7 and 8, in some embodiments, two opposite side walls of the mounting groove 21 are provided with a limiting portion 211, a mounting position of the piezoelectric igniter 31 is formed between the limiting portion 211 and the side wall of the mounting groove 21, and the piezoelectric igniter 31 is limited in the mounting groove 21 by the limiting portion 211 and the side wall of the mounting groove 21.
Referring to fig. 7, in some embodiments, the end of the piezoelectric igniter 31 is provided with a spring plate 35, two ends of the spring plate 35 respectively abut against the corresponding limiting portions 211, and a middle portion of the spring plate 35 abuts against the end of the piezoelectric igniter 31, so that the piezoelectric igniter 31 is limited in the mounting position of the mounting groove 21. The elastic sheet 35 is provided with a through hole, the trigger switch of the piezoelectric igniter 31 is penetrated through the through hole, and the trigger switch of the piezoelectric igniter 31 protrudes out of the surface of the elastic sheet 35 and protrudes out of the mounting position, so that the impact piece 32 can impact the trigger switch of the piezoelectric igniter 31. The elastic sheet 35 is arranged between the end part of the piezoelectric igniter 31 and the limiting part 211, so that the assembly difficulty of the piezoelectric igniter 31 in the mounting groove 21 can be reduced, the assembly of the piezoelectric igniter 31 is facilitated, and the assembly efficiency of the piezoelectric igniter 31 is improved.
Referring to fig. 7, in some embodiments, a sidewall of the valve rod 41 outside the valve body 10 is provided with a positioning platform 413, the positioning platform 413 is disposed along an axial direction of the valve rod 41, one end of the positioning platform 413 extends to an end surface of the valve rod 41, the toggle member 42 is provided with a positioning hole, and the shape of the positioning hole is matched with the cross-sectional shape of the valve rod 41 corresponding to the positioning platform 413, and the valve rod 41 is inserted into the positioning hole, so that the toggle member 42 can rotate along with the valve rod 41. By arranging the positioning platform 413 on the side wall of the valve rod piece 41 outside the valve body 10 and arranging the positioning hole matched with the section shape of the valve rod piece 41 at the positioning platform 413 on the stirring piece 42, the assembly structure of the stirring piece 42 and the valve rod piece 41 can be simplified, and the assembly efficiency of the stirring piece 42 and the valve rod piece 41 can be improved.
Referring to fig. 4 and 7, in some embodiments, a positioning spring 43 and a positioning member 44 are disposed on the valve rod 41 in a penetrating manner, the positioning member 44 is connected with the valve body 10, one end of the positioning spring 43 abuts against the stirring member 42, and the other end abuts against the positioning member 44, so that the stirring member 42 is prevented from moving axially on the valve rod 41 during normal use of the gas valve, the stirring member 42 can be kept at a position corresponding to the impacting member 32, and normal use of the ignition switch assembly 30 is ensured.
A gas appliance according to an embodiment of the second aspect of the present application comprises a gas valve according to any one of the above.
The connecting rod of the gas valve of the gas appliance and the valve rod piece adopt the matching structure of the first tooth part and the second tooth part, so that the connecting rod can rotate along with the valve rod piece and can move along the axial direction of the valve rod piece, the matching structure between the connecting rod and the valve rod is diversified, and the connecting rod can move smoothly along the axial direction of the valve rod piece by adopting the matching structure of the tooth part, thereby ensuring the accurate control of the gas outlet quantity and the combustion temperature of the gas valve and improving the user experience.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
Of course, the present application is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present application, and these equivalent modifications or substitutions are included in the scope of the present application as defined in the appended claims.

Claims (10)

1. A gas valve, comprising:
the valve body is internally provided with a fuel gas channel;
the valve rod assembly comprises a valve rod piece, the valve rod piece is rotatably arranged in the valve body and is partially positioned in the gas channel, the valve rod piece can move relative to the valve body along the axial direction of the valve rod piece, and a first tooth part is arranged at one end of the valve rod piece, which is positioned in the gas channel, around the rotation axis of the valve rod piece;
the temperature control device comprises a thermal expansion valve and a connecting rod, wherein the thermal expansion valve is partially positioned in the gas channel, the connecting rod is positioned in the gas channel, a valve plate is arranged on the connecting rod and used for opening or closing the gas channel, one end of the connecting rod is in threaded connection with one end of the thermal expansion valve, and a second tooth part is arranged at the other end of the connecting rod;
the first tooth part and the second tooth part are meshed, so that the connecting rod can rotate along with the valve rod piece and can move along the axial direction of the valve rod piece.
2. A gas valve according to claim 1, wherein one of the valve rod member and the connecting rod is provided with a circular hole extending in an axial direction, the other is provided with a connecting portion extending in a radial direction of the valve rod member or the connecting rod, the first tooth portion is provided in a circumferential direction of a side wall of the circular hole, the second tooth portion is provided at a side portion of the connecting portion away from the valve rod member or the connecting rod, and the connecting portion is inserted into the circular hole so that the first tooth portion and the second tooth portion are engaged.
3. A gas valve as claimed in claim 2, wherein said connecting portion has an annular structure, and said second tooth portion is provided along a circumferential direction of said connecting portion.
4. A gas valve according to claim 3, wherein the connecting portion is provided on the connecting rod, and the connecting portion has an arc-shaped side portion away from the connecting rod along the axial direction of the connecting rod.
5. A gas valve as claimed in any one of claims 2 to 4, wherein the end of the connecting portion remote from the thermostatic expansion valve is provided with a lead-in surface.
6. A gas valve according to claim 2, wherein one end of the connecting rod adjacent to the thermal expansion valve is provided with a connecting hole extending along the axial direction thereof, the side wall of the connecting hole is provided with a first thread, one end of the thermal expansion valve located in the gas passage is provided with a connecting piece, the side wall of the connecting piece is provided with a second thread, and the connecting rod is connected with the connecting piece through the first thread and the second thread.
7. A gas valve according to claim 1, wherein the gas passage is provided with a stepped portion, and the valve plate is adapted to be fitted to or separated from the stepped portion to close or open the gas passage.
8. A gas valve according to claim 1, wherein a spool chamber is provided in the valve body, the spool chamber being rotatably provided with a spool for communicating or disconnecting the spool chamber with the gas passage, and a linkage mechanism is provided on the valve body for linking the spool with the valve stem member.
9. A gas valve as claimed in claim 8, wherein said linkage comprises a driving gear and a driven gear intermeshed, said driving gear being connected to said valve stem member, said driven gear being connected to said valve spool.
10. A gas appliance comprising a gas valve as claimed in any one of claims 1 to 9.
CN202310555660.5A 2023-05-16 2023-05-16 Gas valve and gas utensil Pending CN116733996A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310555660.5A CN116733996A (en) 2023-05-16 2023-05-16 Gas valve and gas utensil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310555660.5A CN116733996A (en) 2023-05-16 2023-05-16 Gas valve and gas utensil

Publications (1)

Publication Number Publication Date
CN116733996A true CN116733996A (en) 2023-09-12

Family

ID=87910677

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310555660.5A Pending CN116733996A (en) 2023-05-16 2023-05-16 Gas valve and gas utensil

Country Status (1)

Country Link
CN (1) CN116733996A (en)

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