CN114135688A - Plug valve and gas stove - Google Patents
Plug valve and gas stove Download PDFInfo
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- CN114135688A CN114135688A CN202111667395.7A CN202111667395A CN114135688A CN 114135688 A CN114135688 A CN 114135688A CN 202111667395 A CN202111667395 A CN 202111667395A CN 114135688 A CN114135688 A CN 114135688A
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- 238000004891 communication Methods 0.000 claims description 47
- 230000001105 regulatory effect Effects 0.000 claims description 29
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 5
- 238000013022 venting Methods 0.000 claims 2
- 239000007789 gas Substances 0.000 description 50
- 238000009423 ventilation Methods 0.000 description 31
- 238000000034 method Methods 0.000 description 25
- 230000008569 process Effects 0.000 description 23
- 230000008859 change Effects 0.000 description 10
- 230000007423 decrease Effects 0.000 description 9
- 238000007789 sealing Methods 0.000 description 8
- 230000013011 mating Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002737 fuel gas Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010411 cooking Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007363 regulatory process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
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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
- F16K27/062—Construction of housing; Use of materials therefor of taps or cocks with conical 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
- 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
- F16K5/12—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
- 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)
- Taps Or Cocks (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a plug valve and a gas stove with the same, wherein the plug valve comprises: the valve body is provided with a valve cavity, an inlet and an outlet which are communicated with the valve cavity, and a first vent and a second vent which are communicated with the outlet are arranged in the valve cavity; the valve core is rotatably arranged in the valve cavity, an adjusting groove communicated with the inlet is formed in the valve core, the adjusting groove is opposite to the first vent hole and the second vent hole along the circumferential direction of the valve core, the valve core is provided with a first position and a third position, the valve core is completely communicated with the first vent hole and staggered with the second vent hole in the adjusting groove at the first position, the valve core is staggered with the first vent hole and completely communicated with the second vent hole in the adjusting groove at the third position, and the total communicated area of the valve core, the first vent hole and the second vent hole is gradually reduced from the first position to the third position. By applying the technical scheme, the linear adjustment of firepower can be realized, and the adjustment range and the adjustment accuracy of the middle firepower are increased.
Description
Technical Field
The invention relates to the technical field of cookers, in particular to a plug valve and a gas stove with the plug valve.
Background
Gas flow control is adjusted through the gas valve to gas stove firepower size, gas valve flow control's regulation performance is decided by the air flue that each part of valve body is constituteed, the air flue is arranged comparatively simply among the correlation technique, there is the problem that flow does not change on a large scale in the gas valve flow control in-process, thereby lead to the gas stove firepower to embody big fire state and little fire state, middle firepower place control range is little, the position is difficult to the accuse, difficult regulation, can not satisfy the demand of different firepowers under the various scenes in the gas stove use, use experience and feel not good.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide a plug valve which can realize linear adjustment of firepower, and increase the adjustment range and the adjustment accuracy of intermediate firepower.
Another object of the present invention is to provide a gas range, which comprises the plug valve.
A plug valve according to an embodiment of the present invention comprises: the valve comprises a valve body and a valve core, wherein the valve body is provided with a valve cavity, an inlet and an outlet which are communicated with the valve cavity, and a first vent and a second vent which are communicated with the outlet are arranged in the valve cavity; the valve core is rotatably arranged in the valve cavity, an adjusting groove communicated with the inlet is arranged on the valve core, the adjusting groove is opposite to the first vent hole and the second vent hole along the circumferential direction of the valve core, the valve core is provided with a first position and a third position, the adjusting groove is completely communicated with the first vent hole and is staggered with the second vent hole at the first position, the valve core is staggered with the first vent hole and is completely communicated with the second vent hole at the third position, and the total communicated area of the adjusting groove, the first vent hole and the second vent hole is gradually reduced from the first position to the third position.
According to the plug valve provided by the embodiment of the invention, the linear adjustment of firepower can be realized, and the adjustment range and the adjustment accuracy of middle firepower are increased.
In addition, the plug valve according to the above embodiment of the present invention may further have the following additional technical features:
in some embodiments, when the valve core rotates from the first position to the third position, the connection area between the regulating groove and the first vent hole gradually decreases, and after the valve core rotates from the first position to the third position by a predetermined angle, the regulating groove is connected with the second vent hole.
In some embodiments, the valve element further has a second position located between the first position and the third position, the valve element is rotated from the second position to the third position such that the regulating groove is completely communicated with the second vent and the communication area of the regulating groove with the first vent is gradually reduced.
In some embodiments, the first vent hole and the second vent hole are staggered around an axis of the valve element, the adjustment groove includes a first groove portion and a second groove portion that communicate with each other, the first groove portion is opposite to the first vent hole in a circumferential direction of the valve element, the second groove portion is opposite to a portion of the first vent hole close to the second vent hole and the second vent hole in the circumferential direction of the valve element, the valve element is completely communicated with the first vent hole in the first position, and the second groove portion is completely communicated with the second vent hole in the third position.
In some embodiments, the valve element further includes a second position disposed between the first position and the third position, the valve element in the second position the first groove portion is misaligned with the first vent opening, the first groove portion is in communication with a corresponding portion of the first vent opening, and the second groove portion is fully in communication with the second vent opening.
In some embodiments, the first vent is a kidney-shaped hole extending in a direction parallel to or inclined from the circumferential direction of the valve element.
In some embodiments, the first air vent is a special-shaped hole, the first air vent includes a circular hole portion communicating with the groove portion and protruding therefrom in a direction parallel to or inclined with a circumferential direction of the valve element, and a groove portion opposing the second groove portion in the circumferential direction of the valve element.
In some embodiments, the second groove portion is a kidney-shaped hole extending along a circumferential direction of the valve element.
In some embodiments, the inner circumferential surface of the valve cavity is a conical surface, the outer circumferential surface of the valve core is in a shape matched with the inner circumferential surface of the valve cavity, the first vent and the second vent are arranged on the inner circumferential surface of the valve cavity, and the adjusting groove is arranged on the outer circumferential surface of the valve core.
In some embodiments, a first channel and a second channel are further disposed in the valve body, the first channel is communicated between the first vent and the outlet, the second channel is communicated between the second vent and the outlet, and the first channel and the second channel both extend in a linear direction and are parallel to each other.
The gas stove comprises the plug valve.
According to the gas stove provided by the embodiment of the invention, the plug valve is applied to the gas stove, so that the linear adjustment of firepower can be realized, the adjustment range of middle firepower is enlarged, and the adjustment accuracy is improved
Drawings
FIG. 1 is a schematic representation of the construction of a plug valve according to some embodiments of the present invention.
FIG. 2 is an exploded view of a plug valve according to some embodiments of the present invention.
FIG. 3 is a schematic view of the valve body of a plug valve according to one embodiment of the present invention.
FIG. 4 is a schematic view of the valve body of a plug valve according to another embodiment of the present invention.
FIG. 5 is a schematic view of the valve core of a plug valve according to one embodiment of the present invention.
FIG. 6 is a schematic view of the valve core of a plug valve according to another embodiment of the present invention.
FIG. 7 is an expanded view of the mating conical surfaces of the valve body and valve core of a plug valve of one embodiment of the present invention with the valve core in a first position.
FIG. 8 is a schematic illustration of the total communication area of the valve spool and valve body of FIG. 7.
FIG. 9 is an expanded view of the mating conical surfaces of the valve body and valve core of a plug valve of one embodiment of the present invention with the valve core in a second position.
FIG. 10 is a schematic illustration of the total communication area of the valve spool and valve body of FIG. 9.
FIG. 11 is an expanded view of the mating conical surfaces of the valve body and valve core of a plug valve of one embodiment of the present invention with the valve core in a third position.
FIG. 12 is a schematic illustration of the total communication area of the valve spool and valve body of FIG. 11.
FIG. 13 is an expanded view of the mating conical surfaces of the valve body and valve core of another embodiment of the plug valve of the present invention with the valve core in the first position.
FIG. 14 is a schematic illustration of the total communication area of the valve spool and valve body of FIG. 13.
FIG. 15 is an expanded view of the mating conical surfaces of the valve body and valve core of another embodiment of the plug valve of the present invention with the valve core in the second position.
FIG. 16 is a schematic illustration of the total communication area of the valve spool and valve body of FIG. 15.
FIG. 17 is an expanded view of the mating conical surfaces of the valve body and valve core of another embodiment of the plug valve of the present invention with the valve core in a third position.
FIG. 18 is a schematic illustration of the total communication area of the valve spool and valve body of FIG. 17.
FIG. 19 is a schematic view of the construction of a valve seat in an embodiment of the present invention.
FIG. 20 is a schematic illustration of the construction of a valve stem in one embodiment of the present invention.
Reference numerals:
the plug valve comprises a plug valve 100, a valve body 1, an inlet 101, an outlet 102, a first channel 103, a first vent 104, a second channel 105, a second vent 106, a solenoid valve accommodating cavity 107, a valve cavity 108, a valve core 2, an adjusting groove 20, a first groove part 201, a second groove part 202, a clamping groove 203, an air inlet cavity 204, a valve seat 3, a limiting groove 301, a valve rod 4, a positioning block 401, a deflector rod 5, a sealing gasket 6, a bottom cover 7, a solenoid valve 8, a locking nut 9, a valve needle 10, a spring 11, a gasket 12, a first sealing ring 13, a screw 14 and a second sealing ring 15.
Detailed Description
In the use process of the plug valve in the related technology, the valve rod of the gas valve is in the maximum fire state when rotating to 90 degrees and in the minimum fire state when rotating to 210 degrees, but in the adjusting range of 90-210 degrees, the fire power change is not uniform enough, the big fire state and the small fire state occupy the adjusting range and are wide, the transition range is small, and accurate adjustment cannot be realized, so that the cooking effect is influenced.
Therefore, the plug valve 100 provided by the invention can improve the flow regulation performance of the gas valve, linearly change the flow, conveniently adjust the firepower and meet various firepower requirements in the cooking process.
Reference will now be made in detail to the embodiments of the present invention, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.
With reference to fig. 1 to 6 and 7 to 18, a plug valve 100 according to an embodiment of the present invention includes: the valve comprises a valve body 1 and a valve core 2, wherein the valve body 1 is provided with a valve cavity 108 and an inlet 101 and an outlet 102 which are communicated with the valve cavity 108, and gas can enter the valve body 1 from the inlet 101 and can be discharged from the outlet 102. The valve chamber 108 is provided with a first vent 104 and a second vent 106 in communication with the outlet 102 such that the valve chamber 108 can communicate with the outlet 102. The valve core 2 is rotatably arranged in the valve cavity 108, the valve core 2 is provided with an adjusting groove 20 communicated with the inlet 101, and the adjusting groove 20 is opposite to the first vent hole 104 and the second vent hole 106 along the circumferential direction of the valve core 2. That is, the valve core 2 can communicate with the inlet 101, the regulating groove 20 is opposite to the vent of the valve body 1, gas can enter the valve core 2 from the inlet 101, and a communicating space can be created when the regulating groove 20 is opposite to the vent, so that the gas can enter the valve cavity 108 and can be discharged from the outlet 102.
Specifically, the valve core 2 can change the position of the valve core 2 relative to the valve cavity 108 by rotating the valve core 2 in the valve cavity 108, the valve core 2 has a first position and a third position, the valve core 2 can rotate between the first position and the third position, and the position relationship between the regulating groove 20 and the first vent hole 104 and the second vent hole 106 can be continuously changed during the rotation, so that the ventilation quantity can be changed. When the valve body 2 is in the first position, the regulating groove 20 is completely communicated with the first vent hole 104 and is staggered with the second vent hole 106, and when the valve body 2 is in the third position, the regulating groove 20 is staggered with the first vent hole 104 and is completely communicated with the second vent hole 106.
In the present invention, the term that the regulating groove 20 is completely communicated with the vent hole means that the regulating groove 20 and the vent hole have the largest communication area (or the largest opening) in the rotation process of the valve element 2; the adjustment groove 20 is staggered with the vent hole, which means that the adjustment groove 20 is not communicated with the vent hole in the rotation process of the valve core 2. For example, during the rotation of the valve core 2 in the valve cavity 108, when the valve core 2 is at the first position, the communication area between the adjustment groove 20 and the first air vent 104 is the largest, and the adjustment groove 20 and the second air vent 106 are not communicated. Of course, during the rotation of the valve core 2 in the valve cavity 108, the valve core 2 may have a plurality of positions to maintain the maximum communication area between the regulating groove 20 and the first air vent 104; the valve body 2 may have a plurality of positions to prevent the adjustment groove 20 from being communicated with the first vent hole 104. The adjusting groove 20 is completely communicated with the vent (the vent can be the first vent 104 or the second vent 106), the communication area is maximum, and the ventilation volume is large; when the adjusting groove 20 is staggered with the vent hole or is partially communicated with the vent hole, the communication area is small, and the ventilation volume is small; when the adjustment groove 20 is shifted from the vent, the adjustment groove 20 is not in communication with the vent, and the ventilation amount is minimum (non-ventilation).
Further, the valve element 2 regulates the total communicating area of the groove 20 with the first vent hole 104 and the second vent hole 106 to gradually decrease from the first position to the third position. In other words, in the adjusting process of the valve core 2 from the first position to the third position, the ventilation volume is gradually reduced, when the plug valve 100 is applied to a gas valve, in the process of rotating the valve core 2 from the first position to the third position, the connection area between the valve core 2 and the valve cavity 108 is gradually reduced, and the gas flow is gradually reduced, so that the firepower can be gradually changed from large to small, the firepower adjusting by a user is facilitated, and the cooking effect is improved. Alternatively, the total contact area may be gradually reduced from the first position to the third position. The area of the tuning groove 20 that is fully open to the first vent 104 is smaller than the area that is fully open to the second vent 106. In the process that the valve core 2 rotates from the first position to the third position, the process that the connection area between the regulating groove 20 and the first vent hole 104 is gradually reduced and the connection area between the regulating groove 20 and the second vent hole 106 is gradually increased exists, and the total connection area is gradually reduced in the process, so that when the valve core 2 rotates from the first position to the third position, the change of the connection area between the valve core and the outlet is gentle, the connection area between the valve core and the outlet can be accurately regulated, and the connection area between the valve core and the outlet is prevented from being suddenly increased or suddenly reduced.
According to the plug valve 100 provided by the embodiment of the invention, the total connecting area between the valve core 2 adjusting groove 20 and the valve cavity 108 vent hole is gradually changed, so that the ventilation quantity is changed, and the adjusting range and the adjusting accuracy of the middle fire power are further increased.
The total communication area is the sum of the communication area between the adjustment groove 20 and the first air vent 104 and the communication area between the adjustment groove 20 and the second air vent 106. For example, when the first air vent 104 and the second air vent 106 are both communicated with a part of the regulating groove 20, the total communication area is the sum of the communication area of the regulating groove 20 and the first air vent 104 and the communication area of the regulating groove 20 and the second air vent 106; when one of the first and second air vents 104 and 106 is in communication with the regulating groove 20 and the other of the first and second air vents 104 and 106 is not in communication with the regulating groove 20, the total communication area may be the communication area of the air vent in communication with the air groove 20 and the air groove 20.
In practical use, taking the example that the plug valve 100 is applied to a gas stove, the fire power can be changed by rotating the valve core 2 between the first position and the third position, namely, the fire power is adjusted from the maximum fire to the medium fire or the medium and small fire, or from the minimum fire or the maximum fire, so that the accuracy of the middle fire power is improved, and convenience is brought to adjustment of a user.
Referring to fig. 7 to 12, alternatively, when the valve body 2 rotates from the first position to the third position, the connection area between the adjustment groove 20 and the first vent hole 104 gradually decreases, and after the valve body 2 rotates from the first position to the third position by a predetermined angle, the adjustment groove 20 is connected to the second vent hole 106. Specifically, as can be seen from the foregoing description, the total flow area of the regulating groove 20, when fully communicating with the first air vent 104, is larger than the total flow area of the regulating groove 20, when fully communicating with the second air vent 106, therefore, after the valve core 2 rotates from the first position by a preset angle, the total connecting area is still larger than that of the third position, but the difference between the total on-area at this time and the total on-area at the third position is reduced (relative to the difference between the total on-area at the first position and the total on-area at the third position), and therefore, in the process that the valve core 2 rotates to the third position after rotating by a preset angle from the first position, the change of the total connecting area is reduced, therefore, the total connection area of the valve core 2 can be changed smoothly in the rotation process, the problem that the total connection area of the valve core 2 is changed greatly when the valve core rotates by a small angle is solved, and an adjusting mode with higher linearity is provided. The transition section is formed between the first position and the third position, so that the adjusting range occupied by the big fire state and the small fire state of the gas stove can be reduced, the transition range can be increased, and the effect of accurately adjusting firepower is realized.
With reference to fig. 9, optionally, the valve core 2 further has a second position, which is located between the first position and the third position, that is, when the valve core 2 is at the second position, the total opening area value of the regulating groove 20 and the vent is smaller than the first position and larger than the third position. When the valve body 2 rotates from the second position to the third position, the adjustment groove 20 and the second vent hole 106 are completely communicated, and the communication area between the adjustment groove 20 and the first vent hole 104 gradually decreases. In other words, from the second position to the third position, the total open area gradually decreases, primarily due to the gradual decrease in the open area of the adjustment slot 20 and the first air vent 104. That is, at this time, the connection area between the adjustment groove 20 and the second vent 106 is not changed, but the connection area between the adjustment groove 20 and the first vent 104 is gradually decreased, so that only the connection area between the adjustment groove 20 and the first vent 104 is changed during the rotation of the valve core 2, thereby facilitating the smooth adjustment of the connection area between the adjustment groove 20 and the first vent 104, and increasing the linearity of the adjustment process of the total connection area (or the ventilation amount).
With reference to fig. 3 and 4, optionally, the areas of the first vent hole 104 and the second vent hole 106 configured around the axis of the valve core 2 are staggered, so that the total connecting area of the regulating groove 20 and the vent holes is linearly changed during the regulating process, and the range of middle fire power is increased. The adjustment groove 20 includes a first groove portion 201 and a second groove portion 202 that communicate with each other, the first groove portion 201 being opposed to the first vent hole 104 in the circumferential direction of the valve body 2, and the second groove portion 202 being opposed to a portion of the first vent hole 104 near the second vent hole 106 and the second vent hole 106 in the circumferential direction of the valve body 2.
Specifically, in combination with the above, when the valve element 2 is in the first position, the first groove portion 201 is completely communicated with the first vent hole 104, and at this time, the total communication area between the valve element 2 and the valve cavity 108 is the largest, and the gas flow rate is the largest, so that the gas stove is in a fire state. In the third position, the second groove 202 of the valve core 2 is completely communicated with the second vent 106, at this time, the total communication area of the valve core 2 and the valve cavity 108 is minimum, the gas flow is minimum, and the gas stove is in a small fire state. In addition, during the rotation of the valve core 2, the first groove portion 201 can only connect the opposite part of the first vent 104 along the circumferential direction of the valve core 2, and the second groove portion 202 can connect the part of the first vent 104 close to the second vent 106 and the second vent 106, so that the adjustment of the valve core 2 between the first position and the third position (and the second position) can be conveniently realized, and the requirement of improving the linearity can be met.
With reference to fig. 7, 9 and 11, optionally, the valve element 2 further includes a second position, the second position being between the first position and the third position, the valve element 2 in the second position being such that the first groove portion 201 is offset from the first vent hole 104, the first groove portion is in communication with a corresponding portion of the first vent hole 104, and the second groove portion 202 is in full communication with the second vent hole 106.
When the valve core 2 is at the first position, the connection area is the ventilation area of the first ventilation opening; when the valve core 2 is at the third position, the total connecting area is the ventilation area of the second ventilation opening, wherein the total ventilation area of the first ventilation opening can be larger than the total ventilation area of the second ventilation opening. When the valve core 2 is at the second position, the total connection area is a part of the ventilation area of the first ventilation opening and the total ventilation area of the second ventilation opening, therefore, the gas flow at the second position is between the first position and the third position, when the valve core 2 is rotated clockwise or anticlockwise at the second position, the connection area of the first groove part 201 and the first ventilation groove can be changed, and then the gas flow is adjusted to be gradually increased or gradually reduced.
With reference to fig. 3 and 9, optionally, the first air vent 104 is a kidney-shaped hole extending in a direction parallel to or inclined to the circumferential direction of the valve core 2, which facilitates to increase the adjustment range and form a linear adjustment. Specifically, when the valve core 2 rotates circumferentially from the first position to the second position, the first groove portion 201 and the first air vent 104 gradually decrease from being completely communicated, which is beneficial to realizing linear adjustment of the gas flow.
With reference to fig. 4 and 15, alternatively, the first air vent 104 may be a special-shaped hole, and the first air vent 104 includes a circular hole portion communicating with the groove portion and protruding therefrom in a direction parallel to or inclined with the circumferential direction of the valve element 2, and a groove portion opposed to the second groove portion 202 in the circumferential direction of the valve element 2.
With reference to fig. 5 and 9, the second groove portion 202 is optionally a kidney-shaped hole extending along the circumferential direction of the valve core 2, which facilitates linear adjustment of the gas flow rate. Specifically, the ventilation area of the second ventilation opening 106 is smaller than the ventilation area of the first ventilation opening 104, the second ventilation opening 106 is opposite to the second groove portion 202, when the valve core 2 rotates, the second groove portion 202 extending along the circumferential direction can be kept in a complete connection state with the second ventilation opening 106 within a certain range, the total connection area can be changed by changing the connection area of the first groove portion 201 and the first ventilation opening 104, and linear adjustment is facilitated.
With reference to fig. 3, optionally, the inner circumferential surface of the valve cavity 108 is a conical surface, and the outer circumferential surface of the valve core 2 is in a shape matched with the inner circumferential surface of the valve cavity 108, so as to improve the connection stability and facilitate the rotation of the valve core 2 in the valve cavity 108. The first and second air vents 104 and 106 are formed on the inner circumferential surface of the valve chamber 108, and the adjustment groove 20 is formed on the outer circumferential surface of the valve body 2, so that the structure can be simplified, and when the valve body 2 rotates, the adjustment groove 20 can change position directly with the rotation of the valve body 2.
Referring to fig. 3 and 5, in the plug valve 100 according to one embodiment of the present invention, the first vent 104 is a kidney-shaped opening extending along the circumference of the valve chamber 108, the second vent 106 is approximately circular, and the first vent 104 and the second vent 106 are offset from each other. The first groove portion 201 and the second groove portion 202 are each a kidney-shaped hole extending in the circumferential direction of the valve body 2, and the length of the second groove portion 202 extending in the circumferential direction is longer than that of the first groove portion 201.
Specifically, fig. 7 to 12 show schematic diagrams of the conical surface development of the valve body 1 and the valve core 2 at different positions, wherein fig. 7 shows that in the first position, the first groove portion 201 is completely communicated with the first vent hole 104, and the second groove portion 202 is staggered with the second vent hole 106; FIG. 9 shows that in the second position, the first slot portion 201 is in communication with a small portion of the first vent 104 and the second slot portion 202 is in communication with a large portion of the second vent 106; in the third position shown in fig. 11, the first groove 201 is offset from the first vent 104, and the second groove 202 is mostly in communication with the second vent 106. I.e. the total opening area between the valve element 2 and the valve body 1 decreases gradually from the first position to the third position. As shown in fig. 8, 10, and 12, the total communication area of the regulating groove 20 with the vent is shown in the first position, the second position, and the third position, respectively.
Referring to fig. 4 and 6, in the plug valve 100 according to another embodiment of the present invention, the first air port 104 is formed by communicating a circular hole portion and a groove portion, wherein the groove portion protrudes in parallel to the axial direction of the valve body 2 through the circular hole portion, the second air port 106 is substantially circular, and the first air port 104 and the second air port 106 are arranged in a vertically staggered manner. The first groove portion 201 is circular, the second groove portion 202 is a kidney-shaped hole extending in the circumferential direction of the valve body 2, and the connection area of the second groove portion 202 is larger than that of the first groove portion 201.
Specifically, fig. 13 to 18 illustrate the schematic diagrams of the conical surface development of the valve body 1 and the valve core 2 at different positions, wherein fig. 13 illustrates that in the first position, the first groove portion 201 is completely communicated with the circular hole portion of the first air vent 104, and the second groove portion 202 is partially communicated with the groove portion of the first air vent 104 and is staggered with the second air vent 106; FIG. 15 shows that in the second position, the first groove 201 is offset from the first vent 104, the second groove 202 is in communication with most of the second vent 106, and the second groove 202 is in communication with a portion of the groove of the first vent 104; in the third position shown in fig. 17, the first groove 201 is offset from the first vent 104, and the second groove 202 is mostly in communication with the second vent 106. I.e. the total opening area between the valve element 2 and the valve body 1 decreases gradually from the first position to the third position. Fig. 14, 16 and 18 show the total open area of the regulating groove 20 and the vent in the first position, the second position and the third position, respectively.
Wherein the first position, the second position, and the third position may be positions when the spool 2 is rotated by 90 °, 150 °, and 210 °, respectively. Wherein, the total connecting area is the largest at 90 degrees, the ventilation volume is large, and the gas stove shows a big fire; the total connecting area is minimum at 210 degrees, the ventilation volume is small, and the gas stove is indicated as small fire; the total connecting area at 150 degrees is between 90 degrees and 210 degrees, the ventilation quantity is moderate, and the gas stove is characterized by medium fire. Of course, the first position, the second position and the third position may also be the rotation angle of the valve core 2, or the valve core 2 may also have a fourth position, a fifth position, etc. to increase the accuracy of the fire power adjustment range, such as setting a middle or middle fire position, etc.
Optionally, with reference to fig. 5 and 6, the valve core 2 may further include an air inlet chamber 204, the air inlet chamber 204 is located at the bottom of the valve core 2, and the air inlet chamber 204 may be communicated with the inlet 101, so that the gas enters the valve core 2 from the air inlet chamber 204.
Referring to fig. 3, optionally, a first channel 103 and a second channel 105 are further provided in the valve body 1, the first channel 103 is communicated between the first air vent 104 and the outlet 102, the second channel 105 is communicated between the second air vent 106 and the outlet 102, so that the gas can enter the first channel 103 from the first air vent 104, the gas can enter the second channel 105 from the second air vent 106, and the first channel 103 and the second channel 105 both extend in a straight direction and are parallel to each other. The gases of the first channel 103 and the second channel 105 may be delivered from the outlet 102 at substantially the same time. When the valve core 2 is at the first position or the third position, only the first channel 103 or the second channel 105 works, so that the management is facilitated, the maintenance and the fault removal are facilitated, and the durability of the device is improved.
With reference to fig. 1 and 2, optionally, stopcock valve 100 further comprises: the valve comprises a valve cover, a valve rod 4 and an elastic part, wherein the upper part of the valve cavity 108 is opened and is sealed by the valve cover, the inner side surface of the valve cover is provided with a sliding groove, and one end of the sliding groove is provided with a child lock groove; the end part of the valve rod 4 is provided with a positioning block 401, the valve rod 4 is telescopically connected with the valve cover so that the positioning block 401 is embedded in and separated from the child lock groove, and the valve rod 4 can rotate relative to the valve cover so that the positioning block 401 slides along the sliding groove; the elastic piece is connected with the valve rod 4 and applies force to the valve rod 4 towards the outer side of the valve cover, wherein the valve core 2 is provided with a clamping groove 203, and the positioning block 401 is embedded into the clamping groove 203 when being separated from the child lock groove. Specifically, valve rod 4, elastic component, valve gap can be for by the form that arranges in proper order from the top down, wherein the lower extreme of valve rod 4 is located to locating piece 401 to be suitable for the spout cooperation with the valve gap medial surface, can avoid children's mistake to touch, improve the security. Wherein the elastic member may be a spring 11. Further, plug valve 100 still includes disk seat 3, and disk seat 3 locates on the valve casing, specifically, disk seat 3 cover establish with case 2 on, valve rod 4 locates on disk seat 3.
During the use, can overlap on valve rod 4 and be equipped with the knob, the user of being convenient for adjusts the operation. The user presses and rotates the valve rod 4, the elastic piece is compressed, the valve rod 4 moves downwards, the first positioning block 401 positioned at the lower end of the valve rod 4 is separated from the child locking groove of the sliding groove, and then the gas stove is started, the elastic piece is reset by the elastic force, and the user can further rotate the valve rod 4 to adjust the main valve element 2. In a similar way, when closing the gas-cooker, with the first locating piece 401 embedding child lock groove of valve rod 4, can play the effect of locking plug valve 100 to avoid plug valve 100 to be touched by the mistake and open and cause the gas to leak, can improve plug valve 100's security. For example, in practice, the valve rod 4 may be pressed downward and rotated counterclockwise to open and clockwise to close.
According to the gas stove provided by the embodiment of the invention, the gas stove comprises the plug valve 100, and by applying the plug valve 100 to the gas stove, the linear adjustment of firepower can be realized, and the adjustment range and the adjustment accuracy of middle firepower are increased.
A plug valve 100 according to one embodiment of the present invention is described below with reference to the drawings.
Referring to fig. 1 to 18, a plug valve 100 according to an embodiment of the present invention includes a valve body 1, a valve element 2, a valve seat 3, a valve rod 4, a lever 5, a packing 6, a bottom cover 7, a solenoid valve 8, a lock nut 9, a valve needle 10, a spring 11, a gasket 12, a first packing 13, a screw 14, and a second packing 15. Wherein, the first sealing ring 13 can be a valve needle sealing ring, and the second sealing ring 15 can be a screw sealing ring, so as to improve the structural stability. Specifically, when the initial position of the plug valve 100 is reached, the bottom positioning block 401 of the valve rod 4 is clamped in the limiting groove 301 of the valve seat 3 to form a child lock, the positioning block 401 of the valve rod 4 is aligned with the clamping groove 203 of the valve element 2, and the rotatable valve rod 4 is rotated by the bottom positioning block 401 after the child lock is released by pressing the valve rod 4 downwards to drive the valve element 2 to rotate.
Specifically, the valve body 1 has a valve chamber 108, an inlet 101 and an outlet 102, a first vent 104 and a second vent 106 are provided in the valve chamber 108, and the first vent 104 and the second vent 106 communicate with the first passage 103 and the second passage 105, respectively.
The plug valve 100 further comprises an electromagnetic valve 8 accommodating cavity 107 and a valve core 2 accommodating cavity, fuel gas enters the electromagnetic valve 8 accommodating cavity 107 from an inlet, the electromagnetic valve 8 is in contact seal with the electromagnetic valve 8 accommodating cavity 107 in an initial state, the shifting rod 5 is pushed to rotate by pressing down the valve needle 10 along with the valve rod 4, the electromagnetic valve 8 is pushed by the shifting rod 5, and the fuel gas enters the bottom cover 7 and is sealed with the valve body 1 to form a cavity; the valve core 2 is placed in the containing cavity, taper oil coating sealing can be performed between the valve body 1 and the valve core 2, fuel gas enters the valve core 2 air inlet cavity 204 in the cavity of the bottom cover 7, and the fuel gas is output from the outlet after the first groove part 201 of the valve core 2 is communicated with the air outlet channel of the valve body 1. The valve body 2 is provided with a first groove 201 and a second groove 202 communicating with the inlet 101.
In the rotation process of the valve core 2, the first groove part 201 of the valve core 2 is firstly communicated with the first channel 103 of the valve body 1, and when the angle reaches 90 degrees, the throttle area of an air passage is maximum, and the flow is maximum; in the process of adjusting the valve core 2 to the minimum flow position (210 degrees), the air passage formed by the first groove part 201 of the valve core 2 and the first channel 103 of the valve body 1 is gradually replaced by the air passage formed by the second groove part 202 and the first channel 103 of the valve body 1, the throttling area is reduced, and the flow is reduced. The second groove part 202 is only partially communicated with the first channel 103 of the valve body 1 in the adjusting process, and the first groove part 201 of the valve core 2 is not communicated with the second channel 105 of the valve body 1 in the adjusting process; while the throttle area of the gas passage formed by the first groove portion 201 of the valve body 2 and the first passage 103 of the valve body 1 is reduced, the second groove portion 202 gradually communicates with the second passage 105 of the valve body 1 to the second groove portion 202.
In an embodiment of the present invention, as shown in fig. 3 and fig. 9, the valve body 1 and the valve core 2, the first vent hole 104 of the valve body 1 is a kidney-shaped hole, horizontally placed on the taper of the accommodating cavity of the valve core 2, and communicated with the outlet; the first groove part 201 of the valve core 2 is a kidney-shaped hole, the second groove part 202 is horizontally or obliquely arranged on the taper of the valve core 2, when the maximum flow position is adjusted to the minimum flow position, the second groove part 202 is communicated with the second air port of the valve body 1 in the process that the first groove part 201 of the valve core 2 is staggered with the first air port 104 of the valve body 1, when the first groove part 201 of the valve core 2 is completely staggered with the first air port 104 of the valve body 1, the communication throttling area of the second groove part 202 and the second air port of the valve body 1 is the maximum, the flow change in the later adjusting process is controlled by the throttling area of the communication between the second groove part 202 and the first air port of the valve body 1, the throttling area of the communication between the obliquely arranged second groove part 202 and the first air port of the valve body 1 is more obviously changed, and the adjusting effect is more excellent.
In another embodiment of the present invention, as shown in fig. 4 and fig. 15, the valve body 1 and the valve core 2, the first air vent 104 of the valve body 1 is a special-shaped hole formed by combining a round hole and a horizontal or inclined groove, and is placed on the taper of the accommodating cavity of the valve core 2 to communicate with the outlet; the first groove part 201 of the valve core 2 is a round hole, the second groove part 202 is horizontally or obliquely arranged on the taper of the valve core 2, when the maximum flow position is adjusted to the minimum flow position, the second groove part 202 is communicated with the second channel 105 of the valve body 1 in the process that the first groove part 201 of the valve core 2 is staggered with the first air vent 104 of the valve body 1, when the first groove part 201 of the valve core 2 is completely staggered with the first air vent 104 of the valve body 1, the communication throttling area of the second groove part 202 and the second channel 105 of the valve body 1 is the maximum, and the flow change in the subsequent adjusting process is controlled by the throttling area of the communication of the second groove part 202 and the first channel 103 of the valve body 1.
That is, the valve body 1 of the plug valve 100 places the first vent hole 104 and the second vent hole 106 on the taper cavity at different heights, the valve core 2 has a first groove portion 201 and a second groove portion 202 which are communicated with each other, the first groove portion 201 cooperates with the first vent hole 104 of the valve body 1, the outer side of the second groove portion 202 cooperates with the vent hole of the valve body 1, and the inner side wholly or partially communicates with the air inlet cavity 204 of the valve core 2.
When the gas valve is used, the valve rod 4 is rotated, the valve core 2 is driven by the valve rod 4 to rotate in the conical cavity of the valve body 1, the relative positions of the valve core 2 adjusting groove 20 and the air vent of the valve body 1 are different when the valve core 2 is rotated at different angles, the throttling areas of gas path channels formed by mutual matching are also different, and the flow of the gas valve outlet 102 is changed according to different throttling areas.
The valve rod 4 is pressed down to release the child lock and then is rotated to open the valve to be communicated with the gas path to output gas. In the rotation adjustment process of the valve rod 4, the first groove part 201 of the valve core 2 is communicated with the first air vent 104 of the valve body 1, and the outlet 102 of the plug valve 100 is communicated with gas; when the valve rod 4 rotates to a position of 90 degrees, the throttle area formed by the first groove part 201 of the valve core 2 and the first channel 103 of the valve body 1 is the largest, and the gas flow reaches the maximum value; in the rotation process after the valve rod is 490 degrees, the throttle area of the air passage formed by the first groove part 201 of the valve core 2 and the first air vent 104 of the valve body 1 is gradually reduced and replaced by the air passage formed by the second groove part 202 and the first air vent 104 of the valve body 1, before the first groove part 201 of the valve core 2 is completely closed, the second groove part 202 is communicated with the second air outlet of the valve body 1, and the flow of the outlet 102 of the plug valve 100 is changed along with the throttle area of the air passage formed by the second groove part 202 of the valve core 2 and the first air vent 104 of the valve body 1. Therefore, the problem that the flow change is not obvious in the flow adjusting process of the plug valve 100 is solved, the linear adjustment of firepower is realized, and the adjusting range and the adjusting accuracy of the middle firepower are increased.
In the description of the present invention, the terms "length", "upper", "lower", "front", "rear", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate an orientation or positional relationship based on that shown in the drawings.
In the present invention, the first feature may be directly on or directly under the second feature, or the first and second features may be indirectly on or directly under each other through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A plug valve, comprising:
the valve comprises a valve body (1), wherein the valve body (1) is provided with a valve cavity, an inlet and an outlet which are communicated with the valve cavity, and a first vent (104) and a second vent (106) which are communicated with the outlet are arranged in the valve cavity;
the valve core (2) is rotatably arranged in the valve cavity, an adjusting groove (20) communicated with the inlet is arranged on the valve core (2), the adjusting groove (20) is opposite to the first vent hole (104) and the second vent hole (106) along the circumferential direction of the valve core (2),
wherein the valve element (2) has a first position and a third position, the regulating groove (20) is completely communicated with the first vent hole (104) and is staggered with the second vent hole (106) in the first position of the valve element (2), the regulating groove (20) is staggered with the first vent hole (104) and is completely communicated with the second vent hole (106) in the third position of the valve element (2), and the total communicated area of the regulating groove (20) with the first vent hole (104) and the second vent hole (106) is gradually reduced from the first position to the third position of the valve element (2).
2. The plug valve of claim 1, wherein the area of communication between the adjustment groove (20) and the first vent opening (104) is gradually reduced when the valve body (2) is rotated from the first position to the third position, and the adjustment groove (20) is communicated with the second vent opening (106) after the valve body (2) is rotated from the first position to the third position by a predetermined angle.
3. The plug valve of claim 1, wherein the valve core (2) further has a second position located between the first position and the third position, the adjustment slot (20) being fully open to the second vent (106) and the area of the opening of the adjustment slot (20) to the first vent (104) gradually decreasing as the valve core (2) rotates from the second position to the third position.
4. A plug valve according to any one of claims 1 to 3, characterised in that the first venting opening (104) is offset from the area of the second venting opening (106) which is formed around the axis of the valve core (2), the adjusting groove (20) comprises a first groove part (201) and a second groove part (202) which are communicated with each other, the first groove (201) and the first vent (104) are opposed to each other in the circumferential direction of the valve body (2), the second groove portion (202) is opposed to a portion of the first vent hole (104) near the second vent hole (106) and the second vent hole (106) in the circumferential direction of the valve body (2), the valve core (2) is completely communicated with the first air vent (104) in the first position through the first groove part (201), in the third position, the second groove (202) of the valve element (2) is completely connected to the second vent (106).
5. The plug valve of claim 4, wherein the valve core (2) further comprises a second position disposed between the first position and the third position, the valve core (2) in the second position the first slot portion (201) is misaligned with the first vent port (104), the first slot portion (201) is in communication with a corresponding portion of the first vent port (104), and the second slot portion (202) is in full communication with the second vent port (106).
6. The plug valve of claim 4,
the first air vent (104) is a kidney-shaped hole extending in a direction parallel to or inclined from the circumferential direction of the valve core (2); or
The first air vent (104) is a special-shaped hole, the first air vent (104) includes a circular hole portion and a groove portion, the circular hole portion communicates with the groove portion and protrudes in a direction parallel to or inclined with a circumferential direction of the valve element (2), and the groove portion is opposite to the second groove portion (202) in the circumferential direction of the valve element (2).
7. A plug valve according to claim 4, wherein the second groove portion (202) is a kidney-shaped hole extending in the circumferential direction of the valve core (2).
8. The plug valve according to claim 1, wherein the inner peripheral surface of the valve cavity is a conical surface, the outer peripheral surface of the valve core (2) is in a shape matched with the inner peripheral surface of the valve cavity, the first vent hole (104) and the second vent hole (106) are arranged on the inner peripheral surface of the valve cavity, and the adjusting groove (20) is arranged on the outer peripheral surface of the valve core (2).
9. A plug valve according to claim 1, wherein a first passage and a second passage are provided in said valve body (1), said first passage communicating between said first vent (104) and said outlet, said second passage communicating between said second vent (106) and said outlet, said first passage and said second passage both extending in a linear direction and being parallel to each other.
10. Gas burner, characterized in that it comprises a plug valve according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111667395.7A CN114135688B (en) | 2021-12-31 | 2021-12-31 | Plug valve and gas stove |
| PCT/CN2022/083787 WO2023123716A1 (en) | 2021-12-31 | 2022-03-29 | Plug valve and gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111667395.7A CN114135688B (en) | 2021-12-31 | 2021-12-31 | Plug valve and gas stove |
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| Publication Number | Publication Date |
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| CN114135688A true CN114135688A (en) | 2022-03-04 |
| CN114135688B CN114135688B (en) | 2024-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111667395.7A Active CN114135688B (en) | 2021-12-31 | 2021-12-31 | Plug valve and gas stove |
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| Country | Link |
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| CN (1) | CN114135688B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023123716A1 (en) * | 2021-12-31 | 2023-07-06 | 佛山市顺德区美的洗涤电器制造有限公司 | Plug valve and gas stove |
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| CN216618608U (en) * | 2021-12-31 | 2022-05-27 | 佛山市顺德区美的洗涤电器制造有限公司 | Plug valve and gas stove |
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| US4099603A (en) * | 1977-03-03 | 1978-07-11 | Clark Equipment Company | Lock-up clutch control valves |
| JPS6484017A (en) * | 1987-09-24 | 1989-03-29 | Matsushita Electric Ind Co Ltd | Gas feed controlling device |
| CN107477215A (en) * | 2017-09-28 | 2017-12-15 | 广东美的厨房电器制造有限公司 | Gas valve |
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| WO2023123716A1 (en) * | 2021-12-31 | 2023-07-06 | 佛山市顺德区美的洗涤电器制造有限公司 | Plug valve and gas stove |
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| CN114135688B (en) | 2024-07-12 |
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