CN106870772B - Plug valve - Google Patents
Plug valve Download PDFInfo
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- CN106870772B CN106870772B CN201710151721.6A CN201710151721A CN106870772B CN 106870772 B CN106870772 B CN 106870772B CN 201710151721 A CN201710151721 A CN 201710151721A CN 106870772 B CN106870772 B CN 106870772B
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- Prior art keywords
- hole
- air
- air distribution
- valve
- gas distribution
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
- F16K11/0856—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in more than one plane perpendicular to the axis of the plug
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/065—Construction of housing; Use of materials therefor of taps or cocks with cylindrical plugs
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
- F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
- F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
- F16K3/085—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres the axis of supply passage and the axis of discharge passage being coaxial and parallel to the axis of rotation of the plates
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/34—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
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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
- 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
- F16K31/0603—Multiple-way valves
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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
- 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
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sliding Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a plug valve. According to the plunger valve, the plunger valve body is additionally provided with the air distribution cavity, the air distribution disc is arranged in the air distribution cavity, the air distribution disc is provided with the vent hole, at least one side of the vent hole along the rotation direction of the air distribution disc is provided with the air distribution groove communicated with the vent hole, the air distribution groove extends along the rotation direction of the air distribution disc, the air distribution groove and the vent hole can partially or completely cover the air inlet which is arranged in the air distribution cavity and communicated with an air source when rotating along with the air distribution disc, and the air distribution disc is connected with the valve core through the transmission device and synchronously rotates with the valve core. The gas distribution groove is arranged in a shape, so that the gas outlet quantity can be kept consistent in a certain rotating angle, a user can conveniently adjust the firepower of the gas stove, and the firepower is not required to be always stared and slowly adjusted when being adjusted like a traditional gas valve.
Description
Technical Field
The invention relates to the field of gas valves, in particular to a plug valve.
Background
Chinese cauliflowers are colorful and famous in the world. Chinese people have various requirements on the duration of a fire when making dishes, and people can wait for different firepower when making a dish. The traditional gas stove is usually characterized in that the firepower of the traditional gas stove is adjusted by a traditional plunger valve, the firepower is not changed greatly even if a knob is rotated for half a day, the firepower is continuously rotated and is changed greatly suddenly, and the required firepower can meet the requirement only within a small angle range. Therefore, the user needs to look at the fire all the time when adjusting the fire, and the use is inconvenient.
Disclosure of Invention
In order to overcome the defects and shortcomings, the invention provides the following technical scheme: a plug valve comprises a valve body, wherein a valve core accommodating cavity is arranged on the valve body, a valve core is arranged in the valve core accommodating cavity and is in rotary sealing connection with the valve core, a valve rod is arranged at one end of the valve core, an air outlet is further arranged on the valve body and is communicated with the valve core accommodating cavity, a vent groove is arranged on the valve core and rotates along with the valve core, the vent groove is different in size from the air outlet and can completely seal the air outlet.
Preferably, the gas distribution groove comprises a plurality of groove sections with different widths, and the groove sections are communicated with each other. Therefore, the sectional control of the air output of the plunger valve can be conveniently realized.
Preferably, the width of the air distribution groove is gradually narrowed or gradually increased along the rotation direction of the air distribution plate. Therefore, the continuous control of the air output of the plunger valve can be conveniently realized.
Preferably, the two sides of the vent hole along the rotation direction of the air distribution plate are provided with air distribution grooves, the air distribution grooves extend along the rotation direction of the air distribution plate, and the air distribution grooves and the vent hole can partially or completely cover the vent hole when rotating along with the air distribution plate.
Preferably, the air distribution plate is formed by overlapping end faces of a first air distribution piece and a second air distribution piece, the first air distribution piece and the second air distribution piece are mutually sealed and fixed, a through hole I is formed in the first air distribution piece, the through hole I is formed by a ventilation portion and an air distribution portion, a through hole II is formed in the second air distribution piece, the through hole II and the ventilation portion are overlapped and communicated with each other to form a ventilation hole, and the air distribution portion and the end faces of the second air distribution piece form an air distribution groove. On one hand, the fine air distribution part through holes can be obtained through the modes of wire cutting, laser cutting and the like, so that the control on small air flow can be realized; on the other hand, the sectional area of the gas distribution groove can be conveniently adjusted by adjusting the thickness of the first gas distribution sheet, so that the flow can be conveniently adjusted.
Preferably, the ventilation part is a fan-shaped annular through hole, the air distribution part comprises a left air distribution part and a right air distribution part, the left air distribution part comprises a fan-shaped annular through hole A 'and a fan-shaped annular through hole B' which are communicated with each other, the right air distribution part comprises a fan-shaped annular through hole C 'and a fan-shaped annular through hole T' which are communicated with each other, the width of each fan-shaped annular through hole of the air distribution part along the radius direction is fan-shaped annular through hole A '> fan-shaped annular through hole B' > fan-shaped annular through hole C '> fan-shaped annular through hole D', and the shape, size and position of each through hole II are the same as those of the ventilation part.
Preferably, the air distribution disc is formed by overlapping end faces of a first air distribution sheet and a second air distribution sheet, the first air distribution sheet and the second air distribution sheet are mutually sealed and fixed, the first air distribution sheet is provided with a through hole I 'and a through hole I' ', the through hole I' 'is arranged on the left side of the through hole I', both the through hole I 'and the through hole I' 'are formed by a ventilation part and an air distribution part, the ventilation part of the through hole I' is a fan-shaped annular through hole Z, the air distribution part of the through hole I 'comprises a left air distribution part and a right air distribution part, the right air distribution part comprises a fan-shaped annular through hole A and a fan-shaped annular through hole B which are mutually communicated, the left air distribution part comprises a fan-shaped annular through hole C and a fan-shaped annular through hole D which are mutually communicated, and the ventilation part of the through hole I' 'is a fan-shaped annular through hole Y, the gas distribution part of the through hole I' is arranged on the left side of the fan-shaped through hole Y and consists of a fan-shaped through hole E and a fan-shaped through hole E which are communicated with each other, the width of each fan-shaped through hole forming the gas distribution part in the radius direction is that a fan-shaped through hole A, a fan-shaped through hole B, a fan-shaped through hole C, a fan-shaped through hole T, a fan-shaped through hole E and a fan-shaped through hole E are connected with each other, the central angle formed by the radius of the fan-shaped through hole Ding Zuoce and the radius of the right side of the fan-shaped through hole Y is smaller than the maximum included angle formed by connecting any two points on the gas inlet with the rotation center of the gas distribution plate respectively, the second gas distribution plate is provided with a through hole II 'with the same shape, size and position as the fan-shaped through hole Y, and the second gas distribution plate is also provided with a through hole II' with the same shape, size and position as the fan-shaped through hole Y.
Preferably, the plunger valve further comprises a front cover, a convex block is arranged on the circumferential surface of the valve rod, the valve rod penetrates through a through hole X in the front cover, a plurality of positioning grooves are formed in the inner end face of the through hole X along a circle concentric with the through hole X, two side faces of each positioning groove are arranged in an outward inclined mode, when the plunger valve is opened, the upper portion of the convex block is embedded into the positioning grooves, and a spring A is arranged between the valve rod and the front cover. When the valve is used, the lug can fall into different positioning grooves along with the rotation of the valve rod, so that the positioning is realized, and a user can accurately know that the gear of the air flow is switched.
Preferably, a thimble is arranged at the center of the valve element, the thimble is connected with the valve element in a sliding and sealing manner, a spring B is arranged between the thimble and the valve element, a rear cover is arranged at the rear part of the valve body, the rear cover is connected with the valve body in a sealing manner, a rotatable push rod is arranged between the rear cover and the valve body, an air inlet connected with an air source is further arranged on the valve body, an electromagnetic valve accommodating cavity is arranged on the valve body and communicated with the air inlet, an electromagnetic valve is arranged in the electromagnetic valve accommodating cavity and can open or close the air inlet, a thermocouple is arranged at the upper end of the electromagnetic valve, an inner cover is arranged at the front part of the valve body and is connected with the valve body in a sealing manner, the front end of the valve element penetrates through a through hole U in the inner cover, a transmission device comprises a driving gear, a driven gear and a transmission shaft, the driving gear is arranged outside the inner cover and sleeved on the front end of the valve element and rotates synchronously with the valve element, the driven gear is also arranged outside the inner cover and is meshed with the driving gear, one end of the transmission shaft is connected with the gas distribution disc, the inner cover is arranged on the outer end surface of the plunger, and the valve rod and drives the valve to open and close and open and close the valve.
Compared with the prior art, the invention has the following beneficial effects: the invention adds the air distribution cavity on the plunger valve body, the air distribution disk is arranged in the air distribution cavity, the air distribution disk is provided with the vent hole, at least one side of the vent hole along the rotation direction of the air distribution disk is provided with the air distribution groove communicated with the vent hole, the gas distribution groove extends along the rotation direction of the gas distribution plate, the gas distribution groove and the vent hole can partially or completely cover a gas inlet which is arranged in the gas distribution cavity and communicated with a gas source when rotating along with the gas distribution plate, and the gas distribution plate is connected with the valve core through a transmission device and synchronously rotates with the valve core. The gas distribution groove is arranged in a shape, so that the gas outlet quantity can be kept consistent in a certain rotating angle, a user can conveniently adjust the firepower of the gas stove, and the firepower is not required to be always stared and slowly adjusted when being adjusted like a traditional gas valve.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention.
Fig. 2 is a cross-sectional, full sectional view of a plunger valve taken along the axis of the spool according to a first embodiment of the present invention.
Fig. 3 is a full sectional view of a plunger valve in a first embodiment of the present invention taken along the axial section of a valve plate drive shaft.
Fig. 4 is a schematic view of a plug valve of the first embodiment of the present invention with a front cover removed.
Fig. 5 is a schematic view of a front cover of a plug valve according to a first embodiment of the present invention.
Fig. 6 is a schematic view of a valve stem of a plug valve according to a first embodiment of the present invention.
Fig. 7 is a front view of a first gas distribution piece of a plunger valve according to a first embodiment of the present invention.
Fig. 8 is a front view of a second gas distribution piece of the plunger valve according to the first embodiment of the present invention.
Fig. 9 is a schematic diagram of the relative positions of the vent grooves on the valve core and the air outlets on the valve body and the relative positions of the air distribution disk and the air inlet of the air distribution cavity when the plunger valve in the first embodiment of the invention is in different working positions.
Fig. 10 is a schematic view of a second embodiment of the present invention.
FIG. 11 is a front view of a first gas distribution tab of a plunger valve in a second embodiment of the invention.
Fig. 12 is a front view of a second gas distribution piece of a cylinder plug valve in a second embodiment of the present invention.
FIG. 13 is a schematic diagram showing the relative positions of the vent grooves on the valve core and the air outlets on the valve body and the relative positions of the air distribution disk and the air inlet of the air distribution chamber when the plunger valve is in different operating positions according to the second embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Example 1
Fig. 1 to 9 show a plug valve, including a valve body 1, the valve body 1 is provided with a valve core accommodating chamber, the valve core accommodating chamber is provided with a valve core 7, and the two are connected in a rotating sealing manner, the valve body 1 is further provided with three gas outlets respectively communicated with an outer ring, a middle ring and an inner ring on a gas stove head, the three gas outlets are communicated with the valve core accommodating chamber, the valve core 7 is provided with three air grooves, the valve core 7 rotates along with the valve core 7, the air grooves are communicated with the gas outlets in different sizes and can completely seal the gas outlets, the center of the valve core 7 is provided with a thimble 8, the thimble 8 is connected with the valve core 7 in a sliding sealing manner, a spring B8a is arranged between the thimble 8 and the valve core 7, the rear portion of the valve body 1 is provided with a rear cover 10, the rear cover 10 is connected with the valve body 1 in a sealing manner, and a rotatable push rod 9 is arranged between the two, the thimble 8 can push the push rod 9 to rotate, the gas distribution valve is characterized in that the valve body 1 is also provided with a gas inlet hole 1c connected with a gas source, the valve body 1 is provided with a solenoid valve accommodating cavity 1B, the gas inlet hole 1c is communicated with the solenoid valve accommodating cavity 1B, a solenoid valve 6 is arranged in the solenoid valve accommodating cavity 1B, the solenoid valve 6 can open or close the gas inlet hole 1c, the upper end of the solenoid valve 6 is provided with a thermocouple, the thermocouple is connected with a probe arranged on a furnace end, a jacking part on a push rod 9 is inserted into the solenoid valve accommodating cavity 1B, the jacking part can jack up or put down the solenoid valve 6 along with the rotation of the push rod 9, the valve body 1 is provided with a gas distribution cavity 1a, a gas inlet is arranged in the gas distribution cavity 1a and is communicated with the solenoid valve accommodating cavity 1B, the gas distribution cavity 1a is also communicated with the valve core accommodating cavity, a gas distribution disc is arranged in the gas distribution cavity 1a and can synchronously rotate along with the valve core 7 through a transmission device, the gas distribution plate is formed by overlapping and bonding end faces of a first gas distribution plate 1a1 and a second gas distribution plate 1a2, the first gas distribution plate 1a1 and the second gas distribution plate 1a2 are sealed with each other, a through hole I 'and a through hole I' 'are arranged on the first gas distribution plate 1a1, the through hole I' 'is arranged on the left side of the through hole I', both the through hole I 'and the through hole I' 'are composed of a ventilation part and a gas distribution part, the ventilation part of the through hole I' is a fan-shaped annular through hole Z1a1a extending along the rotation direction of the gas distribution plate, the gas distribution part of the through hole I 'comprises a left gas distribution part and a right gas distribution part, the right gas distribution part is composed of a fan-shaped annular through hole A B and a fan-shaped through hole B A extending along the rotation direction of the gas distribution plate and communicated with each other, and the left gas distribution part is composed of a fan-shaped annular through hole C and a fan-shaped through hole D extending along the rotation direction of the gas distribution plate and communicated with each other, the ventilation part of the through hole I' is a sector annular through hole Y1a1B extending along the rotation direction of the gas distribution disc, the gas distribution part of the through hole I 'is arranged at the left side of the sector annular through hole Y1a1B and consists of a sector annular through hole E and a sector annular through hole hexan which are mutually communicated and extend along the rotation direction of the gas distribution disc, the width of each sector annular through hole forming the gas distribution part in the radius direction is sector annular through hole A B, sector annular through hole B A, sector annular through hole C, sector annular through hole D, sector annular through hole E and sector annular through hole hexan, the included angle between the radius of the left side of the sector annular through hole D and the radius of the right side of the sector annular through hole Y1a1B is smaller than the maximum included angle formed by respectively connecting any two points on the gas inlet and the rotation center of the gas distribution disc, the second gas distribution piece 1a2 is provided with a through hole II'1a2a which has the same shape, size and position as the sector annular through hole Z1a1a, the second air distribution piece 1a2 is also provided with a through hole II ' '1a2b which has the same shape, size and position as the fan-shaped through hole Y1a1b, the first air distribution piece 1a1 and the air distribution cavity are rotationally sealed by sealing grease, the fan-shaped through hole Z1a1a and the through hole II '1a2a are superposed and mutually communicated to form a vent hole, the air distribution part and the end surface of the second air distribution piece 1a2 form an air distribution groove, the air distribution groove and the vent hole can partially or completely cover the air inlet when rotating along with the air distribution disc, the air distribution groove and the inner plane of the air distribution cavity 1a form an air distribution channel, when the plunger valve is closed, the air distribution disc seals the air inlet, when the plunger valve is opened, the air inlet is communicated with the vent hole through the air distribution channel or directly communicated with the vent hole, the front part of the valve body 1 is provided with an inner cover 5, and the inner cover 5 is hermetically connected with the valve body 1, the front end of the valve core 7 penetrates out of the through hole U on the inner cover 5, the transmission device comprises a driving gear 11, a driven gear 12 and a transmission shaft 13, the driving gear 11 is arranged outside the inner cover 5, sleeved on the front end of the valve core 7 and synchronously rotated with the valve core 7, the driven gear 12 is also arranged outside the inner cover 5 and meshed with the driving gear 11, one end of the transmission shaft is connected with the gas distribution disc, the other end of the transmission shaft penetrates through the inner cover 5 and is connected with the driven gear 12, a spring C13C is sleeved on a shaft section of a vehicle roof shaft positioned in a gas distribution cavity and pushes the gas distribution disc against the bottom surface in the gas distribution cavity, the front cover 2 is arranged on the outer end surface of the inner cover and shields the driving gear 11 and the driven gear 12, a through hole X2a is arranged on the front cover 2, a plurality of positioning grooves 2b are arranged on the inner end surface of the through hole X2a along a circle concentric with the through hole X2a, the both sides face of positioning groove 2b leans out the setting, valve rod 4 certainly pass in the through-hole X2a, be equipped with hole S4a on the terminal surface of valve rod 4 lower extreme, be equipped with lug 4b on the circumference of valve rod 4 lower extreme, be equipped with the thinner shaft part R of diameter on the valve rod 4, be equipped with conical surface 4c between shaft part R and its upper portion shaft part, still be equipped with a snap ring 4d on the valve rod 4, be equipped with spring E4E between terminal surface and the outer terminal surface of protecgulum 2 under the snap ring 4d, valve rod 4 and the coaxial setting of case, case 7 front end is equipped with hole H, still be equipped with the draw-in groove on the preceding terminal surface of case 7, lug 4b can insert in the draw-in groove to rotatory valve rod 4 drives the case together rotatory, thimble 8 can partly insert hole S4a and is promoted by valve rod 4 simultaneously, thereby promote the push rod, still be equipped with ignition switch 3 on the protecgulum 2.
When the gas distribution valve is used, firstly, the valve rod 4 is pressed down, the conical surface 4c interacts with a key on the ignition switch 3 to switch on the ignition switch, meanwhile, the convex block 4b on the valve rod 4 is inserted into the clamping groove on the front end face of the valve core 7, the thimble 8 is inserted into the hole S4a on the valve rod 4 and is pushed by the valve rod 4 to extend out of the valve core 7, so that the push rod 9 is pushed to rotate, the jacking part on the push rod 9 jacks the electromagnetic valve 6, gas enters the gas inlet in the gas distribution cavity, but the gas inlet is sealed by the gas distribution disk, the gas cannot enter the furnace end, then the valve rod 4 is rotated while the valve rod 4 is kept pressed down, the valve core 7 rotates along with the valve rod 4, so that each vent groove on the valve core is communicated with each gas outlet, simultaneously, the gas distribution disk synchronously rotates through the transmission device to cover the gas inlet, the gas enters the gas distribution cavity through the vent hole, then enters each gas outlet through the vent groove on the valve core accommodating cavity and finally enters the furnace end to be ignited by the ignition switch. The maximum power is present. After the probe on the furnace end is heated, the thermocouple is conducted, and the electromagnetic valve 6 is sucked and kept in an open state. When the valve rod 4 is released, the thimble 8 is reset under the action of the spring B, the push rod 9 is also reset, the valve rod 4 is also reset upwards, and the boss 4B on the valve rod is embedded into the positioning groove 2B on the front cover 2. When the firepower is adjusted, the valve rod 4 is rotated, the edge of the upper surface of the boss 4b interacts with the inclined side surface of the positioning groove 2b, so that the valve rod 4 moves downwards while rotating, the spring E4E compresses, and when the lug 4b rotates to the next positioning groove 2b, the lug 4b moves upwards under the action of the spring E4E and is embedded into the new positioning groove 2b again. Meanwhile, the firepower is adjusted to a new gear.
Example 2
Fig. 10 to 13 show a second embodiment of the present invention, in embodiment 2, the difference from embodiment 1 is that two air outlets are provided on the valve body 1, two mutually communicated vent grooves are provided on the valve core 7, a through hole I is provided on the first air distribution sheet 1a1, the through hole I is composed of a vent part and an air distribution part, the vent part is a fan-shaped through hole 1a1a ', the air distribution part includes a left air distribution part and a right air distribution part, the left air distribution part includes a fan-shaped through hole a' B 'and a fan-shaped through hole B' a 'which are mutually communicated, the right air distribution part includes a fan-shaped through hole C' and a fan-shaped through hole D 'C' which are mutually communicated, the width of each fan-shaped through hole in the air distribution part along the radius direction is fan-shaped through hole a 'B' > fan-shaped through hole B 'a' > fan-shaped through hole C '> fan-shaped through hole D', the second air distribution sheet 1a2 is provided with a through hole II, the shape and the position of the through hole II are the same as the vent groove, and the air distribution part and the end face of the second air distribution part and the vent part 2.
Example 3
The embodiment 3 is basically the same as the embodiment 2 except that the width of the left air distribution part on the first air distribution piece 1a1 in the embodiment 3 is gradually increased along the rotation direction of the air distribution plate, and the width of the right air distribution part is gradually reduced along the rotation direction of the air distribution plate.
Compared with the prior art, the invention has the following beneficial effects: the invention adds the air distribution cavity on the plunger valve body, the air distribution disk is arranged in the air distribution cavity, the air distribution disk is provided with the vent hole, at least one side of the vent hole along the rotation direction of the air distribution disk is provided with the air distribution groove communicated with the vent hole, the gas distribution groove extends along the rotation direction of the gas distribution plate, the gas distribution groove and the vent hole can partially or completely cover a gas inlet which is arranged in the gas distribution cavity and communicated with a gas source when rotating along with the gas distribution plate, and the gas distribution plate is connected with the valve core through a transmission device and synchronously rotates with the valve core. The gas distribution groove is arranged in a shape, so that the gas outlet quantity can be kept consistent in a certain rotating angle, a user can conveniently adjust the firepower of the gas stove, and the firepower is not required to be always stared and slowly adjusted when being adjusted like a traditional gas valve.
The present invention has been described in detail above, but the present invention is not limited to the specific embodiments described herein. It will be understood by those skilled in the art that other modifications and variations may be made without departing from the scope of the invention. The scope of protection of the invention is defined by the appended claims.
Claims (5)
1. A plug valve comprises a valve body (1), a valve core accommodating cavity is arranged on the valve body (1), a valve core (7) is arranged in the valve core accommodating cavity, and the two are connected in a rotating and sealing way, one end of the valve core (7) is provided with a valve rod (4), the valve body (1) is also provided with an air outlet which is communicated with the valve core accommodating cavity, the valve core (7) is provided with a vent groove which rotates along with the valve core (7), the size of the communication between the vent groove and the air outlet is different and the vent groove can completely seal the air outlet, it is characterized in that the valve body (1) is provided with an air distribution cavity (1 a), an air inlet communicated with an air source is arranged in the air distribution cavity (1 a), the air distribution cavity (1 a) is also communicated with the valve core accommodating cavity, a gas distribution disc is arranged in the gas distribution cavity (1 a), the gas distribution disc can synchronously rotate along with the valve core (7) through a transmission device, the air distribution disc is connected with the air distribution cavity in a rotating and sealing way, the air distribution disc is provided with an air vent, at least one side of the air vent along the rotating direction of the air distribution disc is provided with an air distribution groove communicated with the air vent, the air distribution groove extends along the rotation direction of the air distribution plate, the air distribution groove and the vent hole can partially or completely cover the air inlet when rotating along with the air distribution plate, the gas distribution groove and the inner plane of the gas distribution cavity (1 a) form a gas distribution channel, when the plug valve is closed, the air distribution disc seals the air inlet, and when the plug valve is opened, the air inlet is communicated with the vent hole through the air distribution channel or directly communicated with the vent hole;
the gas distribution plate is formed by overlapping end faces of a first gas distribution sheet (1 a 1) and a second gas distribution sheet (1 a 2), wherein the first gas distribution sheet (1 a 1) is provided with a through hole I, the through hole I is formed by a ventilating part and a gas distribution part, the second gas distribution sheet (1 a 2) is provided with a through hole II, the through hole II and the ventilating part are overlapped and communicated with each other to form a ventilating hole, and the gas distribution part and the end face of the second gas distribution sheet (1 a 2) form a gas distribution groove;
still be equipped with the inlet port of connecting the air supply on the valve body, be provided with solenoid valve holding chamber on the valve body, the inlet port intercommunication solenoid valve holding chamber, solenoid valve holding intracavity is provided with the solenoid valve, the solenoid valve can be opened or seal the inlet port.
2. The plug valve of claim 1, wherein said gas distribution grooves comprise groove segments of unequal widths, said groove segments all communicating with one another.
3. The plug valve of claim 1, wherein the width of the distribution groove gradually narrows or increases in the direction of rotation of the distribution disk.
4. The plug valve according to any one of claims 1 to 3, wherein the vent hole is provided with a gas distribution groove on both sides in the rotation direction of the gas distribution plate, the gas distribution groove extends in the rotation direction of the gas distribution plate, and the gas distribution groove and the vent hole can partially or completely cover the gas inlet when rotating along with the gas distribution plate.
5. The plug valve according to claim 1, wherein the ventilation portion is a fan-shaped annular through hole (1 a1a '), the air distribution portion comprises a left air distribution portion and a right air distribution portion, the left air distribution portion comprises a fan-shaped annular through hole A ' (B ') and a fan-shaped annular through hole B ' (A ') which are communicated with each other, the right air distribution portion comprises a fan-shaped annular through hole C ' (C ') and a fan-shaped annular through hole D ' (D ') which are communicated with each other, the width of each fan-shaped annular through hole in the radius direction of the air distribution portion is fan-shaped annular through hole A ' (B ') > fan-shaped annular through hole B ' (A ') > fan-shaped annular through hole C ' (C ') > fan-shaped annular through hole D ' (D '), and the shape, size and position of the through hole II are the same as those of the ventilation portion.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710151721.6A CN106870772B (en) | 2017-03-15 | 2017-03-15 | Plug valve |
| CN202211477671.8A CN115750844A (en) | 2017-03-15 | 2017-03-15 | Gas distribution plate and plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710151721.6A CN106870772B (en) | 2017-03-15 | 2017-03-15 | Plug valve |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211477671.8A Division CN115750844A (en) | 2017-03-15 | 2017-03-15 | Gas distribution plate and plug valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106870772A CN106870772A (en) | 2017-06-20 |
| CN106870772B true CN106870772B (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710151721.6A Active CN106870772B (en) | 2017-03-15 | 2017-03-15 | Plug valve |
| CN202211477671.8A Pending CN115750844A (en) | 2017-03-15 | 2017-03-15 | Gas distribution plate and plug valve |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211477671.8A Pending CN115750844A (en) | 2017-03-15 | 2017-03-15 | Gas distribution plate and plug valve |
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| CN (2) | CN106870772B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477215B (en) * | 2017-09-28 | 2023-07-28 | 广东美的厨房电器制造有限公司 | Gas valve |
| CN108645070B (en) * | 2018-06-04 | 2023-08-29 | 中船重工鹏力（南京）超低温技术有限公司 | High-reliability low-temperature refrigerator |
| JP7111541B2 (en) * | 2018-07-23 | 2022-08-02 | リンナイ株式会社 | gas cock |
| CN109578622B (en) * | 2018-12-21 | 2024-05-28 | 浙江博顿燃具科技有限公司 | Ultra-thin synchronous plug valve structure |
| CN111396586B (en) * | 2020-04-10 | 2022-02-25 | 佛山市顺德区美的洗涤电器制造有限公司 | Plug valve and household appliance |
| CN112325517B (en) * | 2020-11-09 | 2022-06-07 | 深圳供电局有限公司 | Valve mechanism and cryogenic refrigerator |
| CN114183563B (en) * | 2021-11-12 | 2022-11-11 | 浙江新涛智控科技股份有限公司 | Anti-backfire gas plug valve |
| CN114623275B (en) * | 2022-05-12 | 2022-08-23 | 宁波方太厨具有限公司 | Valve body and stove burner |
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| CN201269328Y (en) * | 2008-09-05 | 2009-07-08 | 吴建华 | Four-position four-way manual air valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8011920B2 (en) * | 2006-12-22 | 2011-09-06 | David Deng | Valve assemblies for heating devices |
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2017
- 2017-03-15 CN CN201710151721.6A patent/CN106870772B/en active Active
- 2017-03-15 CN CN202211477671.8A patent/CN115750844A/en active Pending
Patent Citations (7)
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|---|---|---|---|---|
| GB2024991A (en) * | 1978-07-05 | 1980-01-16 | Ewarts Ltd | Improvements Relating to Gas Taps |
| CN201269328Y (en) * | 2008-09-05 | 2009-07-08 | 吴建华 | Four-position four-way manual air valve |
| CN104534122A (en) * | 2014-12-10 | 2015-04-22 | 广东超人节能厨卫电器有限公司 | Novel automatic gas regulating mechanism for constant-temperature fuel gas water heater |
| CN105526378A (en) * | 2015-12-31 | 2016-04-27 | 浙江新涛电子科技股份有限公司 | Gas plug valve |
| CN105889557A (en) * | 2016-04-22 | 2016-08-24 | 姚华民 | Multi-channel gas distribution device with flow regulation function |
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| CN207261729U (en) * | 2017-03-15 | 2018-04-20 | 浙江新涛智控科技股份有限公司 | A kind of plug valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106870772A (en) | 2017-06-20 |
| CN115750844A (en) | 2023-03-07 |
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