CN109931421B - gas plug valve - Google Patents
gas plug valve Download PDFInfo
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- CN109931421B CN109931421B CN201711346109.0A CN201711346109A CN109931421B CN 109931421 B CN109931421 B CN 109931421B CN 201711346109 A CN201711346109 A CN 201711346109A CN 109931421 B CN109931421 B CN 109931421B
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- valve
- cavity
- ventilation
- outlet channel
- inner ring
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- 238000009423 ventilation Methods 0.000 claims abstract description 37
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 24
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
- Taps Or Cocks (AREA)
- Magnetically Actuated Valves (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
A gas plug valve comprises a valve body (1) and a valve core (2), wherein the valve body (1) is at least provided with an air inlet channel (11), an outer ring air outlet channel (13) and an inner ring air outlet channel (14) which are communicated with the valve cavity; the valve core (2) is rotatably arranged in the valve cavity of the valve body (1); the valve is characterized in that the valve body (1) is also provided with a branch gas channel (12) communicated with the valve cavity, and the branch gas channel (12) is communicated with the inner ring gas outlet channel (14); the middle part of the valve core (2) is provided with a ventilation cavity (26), an air inlet at the bottom of the ventilation cavity (26) is communicated with the valve cavity, and the side wall of the valve core (2) is provided with an outer ring fire hole (21), an inner ring fire hole (22), a fire stabilizing hole (23) and an air guide groove (24). The valve core has the advantages of synchronous linear adjustment of the inner ring and the outer ring, small adjustment angle of the valve core, and can reach the required angle in a short time, thereby meeting the requirements of combustion load.
Description
Technical Field
The utility model relates to a gas valve of a gas stove, in particular to a plug valve.
Background
The plug valve of the gas stove is a core component of the household gas stove, and the quality of the stove is determined by the quality of the plug valve for ignition, firepower adjustment and flameout.
The existing gas stove plug valve basically comprises a valve rod, a valve body, a valve core and an electromagnetic valve, wherein the valve rod drives the valve core to rotate relative to the valve body. In order to achieve the aim of flameout protection, an electromagnetic valve is arranged between the air inlet hole and the cock hole. When the thermocouple does not detect flame, the rubber ring at the bottom end of the electromagnetic valve seals the electromagnetic valve hole, so that fuel gas cannot enter the rotary hole, and the fuel gas can be prevented from leaking. When the thermocouple detects flame, the electromagnetic spring on the electromagnetic valve is compressed, the electromagnetic valve hole is opened, and fuel gas can smoothly enter the rotary valve hole from the air inlet hole through the electromagnetic valve hole. The related literature can refer to a Chinese patent utility model 'a plug valve for a thermoelectric flameout protection gas stove and a gas stove' with patent number ZL201310031917.3 (the authority bulletin number is CN 103104744B); reference may also be made to the chinese patent application publication No. 201611228847.0 for a simplified gas plug valve (application publication No. CN106704624 a),
for realizing electric control, the valve core can be driven by a motor, and the document can refer to a stepping motor driven gas plug valve (publication number is CN 2795582Y) of the Chinese utility model with the patent number of ZL 200420114158.3; reference may also be made to the chinese patent application publication No. 201510616962.4 for disclosure of a linear air outlet type electric control gas valve (application publication No. CN 1052002245A), etc.
The prior art has the following defects:
first, the existing plug valve cannot realize any flow regulation, the adjustable range is very small, most of the flow regulation is an ineffective regulation stage, the flow control section of the common valve body is realized by concentric staggering of two circular flow channels, and the flow change caused by the flow control section is difficult to meet the requirement of synchronous linear change, including the above-mentioned CN2795582Y.
Secondly, in the existing plug valve, after flowing into the internal channel of the valve body from the air inlet channel, the air enters the internal cavity of the electromagnetic valve and is throttled by the electromagnetic valve, after the electromagnetic valve is opened, the air flows into the process hole channel in the valve body through the throttle opening again and then flows into the bottom cavity of the valve body to enter the overlength path of the internal channel of the valve core, and the air is limited by a plurality of throttle holes or throttle channels, so that the pressure loss is severe when the air pressure and the air flow from the inlet of the valve body to the outlet of the valve body, and the flow difference is severe.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a gas plug valve capable of realizing synchronous linear adjustment of an inner ring and an outer ring.
Another technical problem to be solved by the present utility model is to provide a gas plug valve capable of precisely burning load in a small angle range.
The utility model aims to provide a gas plug valve with small gas pressure loss.
The technical scheme adopted for solving the technical problems is as follows: a gas plug valve comprises
The valve body is internally provided with a valve cavity, and the valve body is at least provided with an air inlet channel, an outer ring air outlet channel and an inner ring air outlet channel which are communicated with the valve cavity;
the valve core can be rotationally arranged in the valve cavity of the valve body and can adjust the flow of the outer ring air outlet channel and the inner ring air outlet channel;
the valve is characterized in that the valve body is also provided with a branch gas channel communicated with the valve cavity, and the branch gas channel is communicated with the inner ring gas outlet channel;
the middle part of the valve core is provided with a ventilation cavity, an air inlet at the bottom of the ventilation cavity is communicated with the valve cavity, the side wall of the valve core is provided with an outer ring fire hole which is matched with the outer ring air outlet channel for ventilation, an inner ring fire hole which is matched with the inner ring air outlet channel for ventilation, a fire stabilizing hole which is matched with the branch air channel for ventilation, and an air guide groove which is matched with the outer ring air outlet channel and the inner ring air outlet channel for ventilation, the outer ring fire hole, the inner ring fire hole and the fire stabilizing hole are communicated with the ventilation cavity, and the air guide groove is internally provided with ventilation holes communicated with the ventilation cavity.
Further, the air guide groove is spirally arranged on the side wall of the valve core.
The gas plug valve also comprises
The motor is arranged on the valve body, and the power output end of the motor is in driving connection with the valve core; and
the electromagnetic valve is arranged on the valve body and is used for opening and closing an air inlet at the bottom of the ventilation cavity.
The opening and closing end of the electromagnetic valve is directly arranged at the air inlet end of the valve core, so that the air passage in the valve body is simplified, the distance is shortened, meanwhile, air only needs to pass through the electromagnetic valve once, multiple passes are not needed, the air flow pressure loss is greatly reduced, and the flow difference change is also reduced.
Further, the electromagnetic valve and the motor are respectively arranged at two sides of the valve body, the electromagnetic valve is provided with a compression bar which can retract after power is obtained, and the end part of the compression bar is provided with a sealing gasket which can open and close the air inlet at the bottom of the ventilation cavity.
Further, a reset spring which can drive the sealing gasket to seal the air inlet at the bottom of the ventilation cavity after power is lost is sleeved on the compression rod.
The structure of the motor-driven valve spool is preferably set as follows: the power output end of the motor is provided with an inner gear ring, the valve core is provided with a valve rod, and gear teeth matched with the inner gear ring are formed on the valve rod.
Compared with the prior art, the utility model has the advantages that: the outer ring fire hole, the inner ring fire hole, the fire stabilizing hole and the air guide groove on the valve core are matched with corresponding air outlet channels on the valve body, so that synchronous linear adjustment of the inner ring and the outer ring can be realized, the adjustment angle of the valve core is small, the required angle can be achieved in a short time, and the requirement of combustion load is met; in addition, the valve core is easy to open, and the manufacturing cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment.
Fig. 2 is an exploded view of an embodiment.
Fig. 3 is a cross-sectional view of fig. 1.
Fig. 4 is an enlarged view of another view of the valve cartridge of fig. 2.
FIG. 5 is a graph of the change in combustion load flow during rotation of the spool.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 3, the gas plug valve in this embodiment includes a valve body 1, a valve core 2, a motor 3 and an electromagnetic valve 4, wherein a valve cavity is provided in the valve body 1, an air outlet port 18 communicating with the valve cavity is provided on the valve body 1, an air inlet channel 11, an outer ring air outlet channel 13, an inner ring air outlet channel 14 and a branch air channel 12 with two ends communicating with the valve cavity and the inner ring air outlet channel 14 respectively. The air outlet port 18 can be used for connecting a plurality of plug valves into a whole, and the plug can be used for sealing when being singly used.
The valve core 2 can be rotatably arranged in the valve cavity of the valve body 1 and can adjust the flow of the outer ring air outlet channel 13 and the inner ring air outlet channel 14.
The motor 3 is arranged on the valve body 1, and the power output end is in driving connection with the valve core 2; the electromagnetic valve 4 is arranged on the valve body 1 and is used for opening and closing an air inlet at the bottom of the ventilation cavity 26.
As shown in fig. 4, the middle part of the valve core 2 is provided with a ventilation cavity 26, an air inlet at the bottom of the ventilation cavity 26 is communicated with the valve cavity, the side wall of the valve core 2 is provided with an outer ring fire hole 21 which is matched with the outer ring air outlet channel 13 for ventilation, an inner ring fire hole 22 which is matched with the inner ring air outlet channel 14 for ventilation, a fire stabilizing hole 23 which is matched with the branch air channel 12 for ventilation, and an air guide groove 24 which is matched with both the outer ring air outlet channel 13 and the inner ring air outlet channel 14 for ventilation, the outer ring fire hole 21, the inner ring fire hole 22 and the fire stabilizing hole 23 are communicated with the ventilation cavity 26, and an air vent 25 which is communicated with the ventilation cavity 26 is arranged in the air guide groove 24. The air guide groove 24 is arranged on the side wall of the valve core 2 in a spiral mode.
The electromagnetic valve 4 and the motor 3 are respectively arranged at two sides of the valve body 1, the electromagnetic valve 4 is provided with a compression bar 41 which can retract after power is supplied, and the end part of the compression bar 41 is provided with a sealing gasket 42 which can open and close the air inlet at the bottom of the ventilation cavity 26. The compression bar 41 is sleeved with a reset spring 43 which can drive a sealing gasket 42 to seal the air inlet at the bottom of the ventilation cavity 26 after power is lost.
The drive settings of the motor 3 and the valve element 2 are as follows: the power output end of the motor 3 is provided with an annular gear 31, the valve core 2 is provided with a valve rod 5, and gear teeth 51 matched with the annular gear 31 are formed on the valve rod 5.
The opening and closing end of the electromagnetic valve 4 is directly arranged at the air inlet end of the valve core 2, so that the air passage in the valve body 1 is simplified, the path is shortened, meanwhile, air only needs to pass through the electromagnetic valve 4 once, multiple passes are not needed, the air flow pressure loss is greatly reduced, and the flow difference change is also reduced.
When the flow rate is regulated, the inner ring fire hole 22 is matched with the inner ring air outlet channel 14, the fire stabilizing hole 23 is matched with the branch air channel 12, so that inner ring air circulation is realized, when the regulating angle is further increased, the inner ring fire hole 22 is not communicated with the inner ring air outlet channel 14, the outer ring fire hole 21 and the air guide groove 24 are communicated with the outer ring air outlet channel 13, meanwhile, the air guide groove 24 is also communicated with the inner ring air outlet channel 14, the intercommunication of the outer ring air outlet channel 13 and the inner ring air outlet channel 14 is realized, and the simultaneous change of the flow rate is realized. The gas distribution of the inner ring and the outer ring is realized because the matched nozzle size ratio of the gas outlet channels inside and outside the valve body flows out, and the gas flow change trend of the inner ring and the outer ring is the same.
In the embodiment, the flow regulating function is to regulate the flow of the inner ring of the existing plug valve at the regulating angle of the motor of 90 degrees, and synchronously regulate the flow of the inner ring and the outer ring at 90 degrees to 135 degrees. The maximum adjusting angle of the valve body is 130 degrees, the flow adjusting mode of the existing valve body is changed (when the existing valve body is adjusted, the fire power is adjusted from small to maximum, and the fire power is adjusted from large to small after 90 degrees to 180 degrees), the adjusting mode has repeated fire points and large adjusting angle, and the adjusting method has the advantages that the adjusting angle of the valve core is small, so that the motor reaches the required angle in a short time, and the synchronous rate of the command issuing and the flow adjustment is improved.
The following table shows the flow rate change during the rotation of the spool of the plug valve in this embodiment.
The corresponding graph is shown in fig. 5.
Claims (6)
1. A gas plug valve comprises
The valve body (1) is internally provided with a valve cavity, and the valve body (1) is at least provided with an air inlet channel (11), an outer ring air outlet channel (13) and an inner ring air outlet channel (14) which are communicated with the valve cavity;
the valve core (2) is rotatably arranged in the valve cavity of the valve body (1) and can adjust the flow of the outer ring air outlet channel (13) and the inner ring air outlet channel (14);
the valve is characterized in that the valve body (1) is also provided with a branch gas channel (12) communicated with the valve cavity, and the branch gas channel (12) is communicated with the inner ring gas outlet channel (14);
the middle part of the valve core (2) is provided with a ventilation cavity (26), an air inlet at the bottom of the ventilation cavity (26) is communicated with the valve cavity, the side wall of the valve core (2) is provided with an outer ring fire hole (21) which is matched with the outer ring air outlet channel (13) for ventilation, an inner ring fire hole (22) which is matched with the inner ring air outlet channel (14) for ventilation, a fire stabilizing hole (23) which is matched with the branch air channel (12) for ventilation, and an air guide groove (24) which is matched with the outer ring air outlet channel (13) and the inner ring air outlet channel (14) for ventilation, wherein the outer ring fire hole (21), the inner ring fire hole (22) and the fire stabilizing hole (23) are all communicated with the ventilation cavity (26), and a ventilation hole (25) which is communicated with the ventilation cavity (26) is arranged in the air guide groove (24).
2. The gas plug valve according to claim 1, wherein the gas guide groove (24) is spirally arranged on the side wall of the valve core (2).
3. The gas plug valve according to claim 1 or 2, characterized in that the gas plug valve further comprises
A motor (3) arranged on the valve body (1) and the power output end is in driving connection with the valve core (2); and
the electromagnetic valve (4) is arranged on the valve body (1) and is used for opening and closing an air inlet at the bottom of the ventilation cavity (26).
4. A gas plug valve according to claim 3, characterized in that the electromagnetic valve (4) and the motor (3) are respectively arranged at two sides of the valve body (1), the electromagnetic valve (4) is provided with a compression bar (41) which can retract after power is supplied, and the end part of the compression bar (41) is provided with a sealing gasket (42) which can open and close the air inlet at the bottom of the ventilation cavity (26).
5. The gas plug valve according to claim 4, wherein the pressure lever (41) is sleeved with a return spring (43) which can drive the sealing gasket (42) to seal the bottom air inlet of the ventilation cavity (26) after power is lost.
6. A gas plug valve according to claim 3, characterized in that the power output end of the motor (3) is provided with an inner gear ring (31), the valve core (2) is provided with a valve rod (5), and gear teeth (51) matched with the inner gear ring (31) are formed on the valve rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711346109.0A CN109931421B (en) | 2017-12-15 | 2017-12-15 | gas plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711346109.0A CN109931421B (en) | 2017-12-15 | 2017-12-15 | gas plug valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109931421A CN109931421A (en) | 2019-06-25 |
| CN109931421B true CN109931421B (en) | 2023-11-17 |
Family
ID=66979525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711346109.0A Active CN109931421B (en) | 2017-12-15 | 2017-12-15 | gas plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109931421B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529620A (en) * | 2019-08-16 | 2019-12-03 | 广州市红日燃具有限公司 | A kind of integrated form Gas appliance control valve |
| CN112377644A (en) * | 2020-10-29 | 2021-02-19 | 浙江博顿燃具科技有限公司 | 0-degree double-spraying synchronous plug valve |
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010047749A (en) * | 1999-11-23 | 2001-06-15 | 권순호 | A air moving pump |
| CN202228750U (en) * | 2011-09-22 | 2012-05-23 | 伍桂婵 | Three-ring-fire safety valve |
| CN204533620U (en) * | 2015-04-07 | 2015-08-05 | 高永辉 | black water regulating valve |
| CN106015648A (en) * | 2016-08-03 | 2016-10-12 | 宁波来特燃气具有限公司 | Fuel gas valve element and fuel gas valve with same |
| CN206290742U (en) * | 2016-12-16 | 2017-06-30 | 宁波方太厨具有限公司 | It is adjusted in synchronism the gas valve of inside and outside circulation |
| CN107339449A (en) * | 2017-02-27 | 2017-11-10 | 宁波方太厨具有限公司 | Inner and outer ring flow gas regulating valve |
| CN207554872U (en) * | 2017-12-15 | 2018-06-29 | 宁波方太厨具有限公司 | fuel gas plug valve |
-
2017
- 2017-12-15 CN CN201711346109.0A patent/CN109931421B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010047749A (en) * | 1999-11-23 | 2001-06-15 | 권순호 | A air moving pump |
| CN202228750U (en) * | 2011-09-22 | 2012-05-23 | 伍桂婵 | Three-ring-fire safety valve |
| CN204533620U (en) * | 2015-04-07 | 2015-08-05 | 高永辉 | black water regulating valve |
| CN106015648A (en) * | 2016-08-03 | 2016-10-12 | 宁波来特燃气具有限公司 | Fuel gas valve element and fuel gas valve with same |
| CN206290742U (en) * | 2016-12-16 | 2017-06-30 | 宁波方太厨具有限公司 | It is adjusted in synchronism the gas valve of inside and outside circulation |
| CN107339449A (en) * | 2017-02-27 | 2017-11-10 | 宁波方太厨具有限公司 | Inner and outer ring flow gas regulating valve |
| CN207554872U (en) * | 2017-12-15 | 2018-06-29 | 宁波方太厨具有限公司 | fuel gas plug valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109931421A (en) | 2019-06-25 |
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