CN106641305A - Water and gas linkage device for gas water heater - Google Patents
Water and gas linkage device for gas water heater Download PDFInfo
- Publication number
- CN106641305A CN106641305A CN201611009774.6A CN201611009774A CN106641305A CN 106641305 A CN106641305 A CN 106641305A CN 201611009774 A CN201611009774 A CN 201611009774A CN 106641305 A CN106641305 A CN 106641305A
- Authority
- CN
- China
- Prior art keywords
- gas
- valve body
- water
- valve
- linkage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
- F16K3/22—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 sealing faces shaped as surfaces of solids of revolution
- F16K3/24—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
-
- 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
-
- 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
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
Abstract
The invention relates to a water and gas linkage device for a gas water heater. The water and gas linkage device comprises a gas valve body assembly, a water valve body assembly, a linkage valve assembly and a micro switch assembly and further comprises a water inlet cavity cover; a connector is provided with a guide hole communicated with an inner cavity of the water inlet cavity cover; a flange connected with a gas valve body is arranged at one end of the linkage valve assembly, an internal counter bore is formed in the other end of the linkage valve assembly, an axial guide hole in the axial direction is formed in the wall of the linkage valve assembly, and a thimble guide hole is formed in the linkage valve assembly; a micro switch base is arranged on the outer wall of the internal counter bore; a drive part comprises a seat body and a drive rod, and the drive rod penetrates through the axial guide hole and is matched with a micro switch; the connector of the water inlet cavity cover is inserted in the internal counter bore, and the end part of a screw extends into an annular fastening groove. Compared with the prior art, the water and gas linkage device has the benefits that the gas valve body assembly, the water valve body assembly and the linkage valve assembly are respectively taken as an assembly, so that the specialized production is convenient, and the assembly is convenient; the micro switch is fixed on a connecting pipe fitting of the linkage valve assembly, and the drive part directly drives the micro switch, so that the action is sensitive, parts are reduced, and the cost is reduced.
Description
Technical field
The present invention relates to a kind of water vapor linked valve of gas heater.
Background technology
Currently available technology, a kind of gas linkage apparatus for gas of gas heater, including gas valve body component, water valve body group
Part, linkage valve module and microswitch component, gas valve body component includes gas valve body, regulating the qi flowing in the channels valve element, regulating the qi flowing in the channels valve rod and electromagnetism
Component, there is spool chamber, solenoid valve seat, intake interface pipe and gas outlet on gas valve body；Water valve body component includes water valve body, water transfer
Valve element, water transfer valve core rod, steady flow valve core component, diaphragm of rubber, compression spring and the drive disk with push rod, have on water valve body component
Water inlet interface pipe, intake antrum, water valve core cavity and water outlet mouthpiece pipe, water inlet interface pipe is communicated with intake antrum, intake antrum and water valve core
Chamber communicates, and spool chamber is communicated with valve body cavity and water outlet mouthpiece pipe；Linkage valve module include push rod, linkage valve, actuator and
Intake antrum lid, has outlet interface on linkage valve module；Linkage valve module is connected with gas valve body and water valve body component；One support with
Linkage valve module is fixedly connected, and microswitch is fixed on support, and a pressing plate is articulated on support, and actuator drives pressing plate, pressing plate
Coordinate with microswitch.Existing problems are：Complex structure, is unfavorable for modularized production, and efficiency is low.
The content of the invention
The purpose of the present invention is：A kind of gas linkage apparatus for gas of gas heater is provided, it has simple structure, modularization
Production, easy to assembly, work efficiency is high.
What the present invention was realized in：A kind of gas linkage apparatus for gas of gas heater, including gas valve body component, water valve
Body component, linkage valve module and microswitch component, gas valve body component include gas valve body, regulating the qi flowing in the channels valve element, regulating the qi flowing in the channels valve rod and
Electromagnetic assembly, there is spool chamber, solenoid valve seat, intake interface pipe and gas outlet on gas valve body；Water valve body component include water valve body,
Water transfer valve element, water transfer valve core rod, steady flow valve core component, diaphragm of rubber, compression spring and the drive disk with push rod, have on water valve body
Water inlet interface pipe, intake antrum, spool chamber and water outlet mouthpiece pipe, water inlet interface pipe is communicated with intake antrum, intake antrum and spool chamber phase
Logical, spool chamber is communicated with valve body cavity and water outlet mouthpiece pipe；Linkage valve module includes push rod, linkage valve and actuator, linkage
There is outlet interface on valve body；Linkage valve module is connected with gas valve body component and water valve body component；It is characterized in that：Also wrap
An intake antrum lid is included, there is a joint on intake antrum lid, there is annular binding groove on joint, joint has pilot hole interior with intake antrum lid
Chamber communicates；
There is the annular groove of circular intake antrum opening on the end face of the intake antrum, there is annular protrusion at the edge of diaphragm of rubber；Ring
In the raised embedded annular groove of shape, intake antrum lid is fastened with intake antrum and is screwed and links together；One is formed by rubber
Glue barrier film is divided into valve body cavity the valve body cavity of the right and left, and the push rod installed in drive disk is through compression spring through guiding
Hole is stretched out, and drive disk is engaged with diaphragm of rubber；
Linkage valve module one end is provided with the flange that be connected with gas valve body component, the other end and is provided with interior counterbore, linkage valve group
, there is thimble pilot hole in axially directed hole on part wall vertically in linkage valve module；Have what is communicated with interior counterbore on interior counterbore wall
Screw；Microswitch seat is provided with the outer wall of interior counterbore；
Actuator includes pedestal and drive rod, and pedestal one end drives with top rod driving cooperation, the other end and thimble and coordinates, drive rod
Coordinate through axially directed hole and microswitch；
In the joint insertion of intake antrum lid in counterbore, the end of screw is stretched into annular binding groove.
A kind of gas linkage apparatus for gas of described gas heater, it is characterized in that：The axis of the outlet interface
It is vertical with the plane perpendicular to horizontal plane.
A kind of gas linkage apparatus for gas of described gas heater, it is characterized in that：The top of the gas valve body
There is radially connected hole；
Guiding position-arresting groove circumferentially is arranged at regulating the qi flowing in the channels valve element top；
Also include guide-localization bar, guide-localization bar through radially connected hole stretch into be oriented to position-arresting groove in, guide-localization bar with lead
It is slidably matched to position-arresting groove.
A kind of gas linkage apparatus for gas of described gas heater, it is characterized in that：The top of the adjusting spool
There is valve rod hole, also including an orientation axes；
There is shaft hole the lower end of regulating the qi flowing in the channels valve rod；
In regulating the qi flowing in the channels valve rod insertion valve rod hole and gap coordinates, orientation axes are stretched into shaft hole, determining in orientation axes and adjusting spool
It is fixedly connected to axis hole.
A kind of gas linkage apparatus for gas of described gas heater, it is characterized in that：The top of the water valve body has
Radially connected hole；
Guiding position-arresting groove circumferentially is arranged at water transfer valve element top；
Also include guide-localization bar, guide-localization bar through radially connected hole stretch into be oriented to position-arresting groove in, guide-localization bar with lead
It is slidably matched to position-arresting groove.
A kind of gas linkage apparatus for gas of described gas heater, it is characterized in that：The top of the water transfer valve element
There is valve rod hole, also including an orientation axes；
There is shaft hole the lower end of water transfer valve core rod；
Simultaneously gap coordinates in water transfer valve core rod insertion valve rod hole, and orientation axes are stretched into shaft hole, in orientation axes and water transfer valve element
Orientation axis hole is fixedly connected.
A kind of gas linkage apparatus for gas of gas heater of the present invention, compared with the prior art, gas valve body component, water valve body group
Part and linkage valve module are easy to Virtual production respectively as a component, easy to assembly；Microswitch is fixed on linkage valve group
In the connecting pipe of part, actuator direct drive microswitch is active in one's movements, and reduces part, reduces cost.
Description of the drawings
Fig. 1 is the stereogram of the present invention.
Fig. 2 is the front view of the present invention.
Fig. 3 is the top view of the present invention.
Fig. 4 is A-A views of Fig. 3.
Fig. 5 is the three-dimensional exploded view of the present invention.
Fig. 6 is the partial sectional view of the present invention.
Fig. 7 is the three-dimensional exploded view that the regulating the qi flowing in the channels valve element of combustion gas valve module of the present invention and regulating the qi flowing in the channels valve rod coordinate.
Fig. 8 is the partial sectional view of water valve body component of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described.
As shown in figure 1, a kind of gas linkage apparatus for gas of gas heater, including gas valve body component 1, water valve body component 2,
Linkage valve module 3 and microswitch component 4, gas valve body component 1 includes gas valve body, regulating the qi flowing in the channels valve element, regulating the qi flowing in the channels valve rod and electromagnetism
Component, there is spool chamber, solenoid valve seat, intake interface pipe 1A and gas outlet 1B on gas valve body；Water valve body component 2 includes water valve body
21st, water transfer valve element, robber cement barrier film 22, compression spring 23 and the drive disk with push rod 24, there is water inlet interface pipe on water valve body 21
211st, intake antrum 212, spool chamber and water outlet mouthpiece pipe 213, water inlet interface pipe 211 is communicated with intake antrum 212, intake antrum 212 with
Spool chamber is communicated, and spool chamber is communicated with water outlet mouthpiece pipe 213；Linkage valve module 3 includes thimble 31, linkage valve 32 and actuator
33, there is outlet interface 34 on linkage valve 32；Linkage valve 32 is connected with gas valve body 1 and water valve body 2.
Also include an intake antrum lid 5, there is a joint 51 on intake antrum lid 5, there is annular binding groove 511, joint on joint 51
51 have pilot hole 512 to communicate with the inner chamber of intake antrum lid 5；
There is the annular groove of circular intake antrum opening on the end face of the intake antrum 212, there is convex annular at the edge of diaphragm of rubber 22
Rise；In the embedded annular groove of annular protrusion, intake antrum lid 5 is fastened and is screwed and links together with intake antrum 212；Band top
The push rod of the drive disk 24 of bar stretches out through compression spring 23 through pilot hole 512, and push rod is slidably matched and liquid with pilot hole 512
Body is sealed；Drive disk 24 is engaged with diaphragm of rubber 22；
The one end of linkage valve 32 is provided with the flange that is connected with gas valve 1, the other end and is provided with interior counterbore 321, linkage valve 32
There is thimble pilot hole in axially directed hole 322 on wall vertically, connecting pipe 32；Have on the wall of interior counterbore 321 and interior counterbore 321
The screw for communicating；Microswitch seat is provided with the outer wall of interior counterbore 321；
Actuator 33 includes pedestal 331 and switch depression bar 332, the one end of pedestal 331 and top rod driving cooperation, the other end and thimble 31
Drive and coordinate, switch depression bar 332 coordinates through axially directed hole 322 with microswitch 4；
The joint 51 of intake antrum lid 5 is inserted in interior counterbore 321, and the end of screw is stretched into annular binding groove 511.
The axis of the outlet interface 34 is vertical with the plane perpendicular to horizontal plane；Could also say that：Outlet interface 34
Axis is vertical with the postnotum of the drain pan of gas heater.
The present invention when in use, the drain pan of fixed seat on gas valve body component 1 and water valve body component 2 and gas heater
Postnotum be fixedly connected, the axis of intake interface pipe 1A and water inlet interface pipe 211 is parallel with postnotum, when postnotum it is upright
When, the axis and horizontal plane of intake interface pipe 1A and water inlet interface pipe 211, now outlet interface 34 is relative with people, such as Fig. 3
It is shown；
It is relative with outlet interface 24 when people bow when postnotum is parallel with supporting surface and supporting surface supports postnotum, it is convenient
Assembling.
As shown in fig. 6, radially connected hole 61 is arranged at the top of the gas valve body 6；
Guiding position-arresting groove 71 circumferentially is arranged at the top of regulating the qi flowing in the channels valve element 7；
Also include a guide-localization bar 8, guide-localization bar 8 is stretched into guiding position-arresting groove 71 through radially connected hole 61, and it is fixed to be oriented to
Position bar 8 is slidably matched with position-arresting groove 71 is oriented to.
Valve rod hole 72 is arranged at the top of the regulating the qi flowing in the channels valve element 7, also including an orientation axes 9；
There is shaft hole the lower end of regulating the qi flowing in the channels valve rod 10；
In the insertion valve rod hole 72 of regulating the qi flowing in the channels valve rod 10 and gap coordinates, orientation axes 9 are stretched into shaft hole, orientation axes 9 and adjusting spool 7
On orientation axis hole be fixedly connected.
As shown in figure 8, radially connected hole 211 is arranged at the top of the water valve body 21；
Guiding position-arresting groove 251 circumferentially is arranged at the top of water transfer valve element 25；
Also include a guide-localization bar 8, guide-localization bar 8 is stretched into guiding position-arresting groove 251 through radially connected hole 211, is oriented to
Locating rod 8 is slidably matched with position-arresting groove 251 is oriented to.
Valve rod hole is arranged at the top of the water transfer valve element 25, also including an orientation axes 9；
There is shaft hole the lower end of water transfer valve core rod 26；
In the insertion valve rod hole of water transfer valve core rod 26 and gap coordinates, orientation axes 9 are stretched into shaft hole, orientation axes 9 and water transfer valve element
Orientation axis hole on 25 is fixedly connected.
Above-described is only the preferred embodiments of the present invention.It should be pointed out that for the ordinary skill of this area
For personnel, without departing from the principles of the present invention, some improvement and modification can also be made, this is also considered as the present invention's
Protection domain.
Claims (4)
1. a kind of gas linkage apparatus for gas of gas heater, including gas valve body component, water valve body component, linkage valve module and micro-
Dynamic switch module, gas valve body component includes gas valve body, regulating the qi flowing in the channels valve element, regulating the qi flowing in the channels valve rod and electromagnetic assembly, has on gas valve body
Spool chamber, solenoid valve seat, intake interface pipe and gas outlet；Water valve body component include water valve body, water transfer valve element, water transfer valve core rod,
Diaphragm of rubber, steady flow valve core component, compression spring and the drive disk with push rod, there is water inlet interface pipe, intake antrum, valve element on valve body
Chamber and water outlet mouthpiece pipe, water inlet interface pipe is communicated with intake antrum, and intake antrum is communicated with water valve core cavity, spool chamber and valve body cavity and
Water outlet mouthpiece pipe is communicated；Linkage valve module includes push rod, connecting pipe and actuator, there is outlet interface in connecting pipe；Linkage
Valve module is connected with gas valve body and water valve body component；It is characterized in that：Also include an intake antrum lid, have one to connect on intake antrum lid
Head, there is annular binding groove on joint, joint has pilot hole to communicate with the inner chamber of intake antrum lid；
There is the annular groove of circular intake antrum opening on the end face of the intake antrum, there is annular protrusion at the edge of diaphragm of rubber；Ring
In the raised embedded annular groove of shape, intake antrum lid is fastened with intake antrum and is screwed and links together, and forms one by rubber
Glued membrane is divided into valve body cavity the valve body cavity of the right and left, and the push rod installed in drive disk is stretched through compression spring through pilot hole
Go out, drive disk is engaged with diaphragm of rubber；
Linkage valve module one end is provided with the flange that is connected with gas valve body, the other end and is provided with interior counterbore, interstage valve component walls
On axially directed hole vertically, have thimble pilot hole in linkage valve module；There is the screw communicated with interior counterbore on interior counterbore wall；
Microswitch seat is provided with the outer wall of interior counterbore；
Actuator includes pedestal and drive rod, and pedestal one end drives with top rod driving cooperation, the other end and thimble and coordinates, drive rod
Coordinate through axially directed hole and microswitch；
In the joint insertion of intake antrum lid in counterbore, the end of screw is stretched into annular binding groove.
2. the gas linkage apparatus for gas of a kind of gas heater according to claim 1, it is characterised in that：The interstage valve goes out
The axis of gas interface is vertical with the plane perpendicular to horizontal plane.
3. the gas linkage apparatus for gas of a kind of gas heater according to claim 1, it is characterised in that：The gas valve body
Top have radially connected hole；
Guiding position-arresting groove circumferentially is arranged at regulating the qi flowing in the channels valve element top；
Also include guide-localization bar, guide-localization bar through radially connected hole stretch into be oriented to position-arresting groove in, guide-localization bar with lead
It is slidably matched to position-arresting groove.
4. the gas linkage apparatus for gas of a kind of gas heater according to claim 1, it is characterised in that：The water valve body
Radially connected hole is arranged at top；
Guiding position-arresting groove circumferentially is arranged at water transfer valve element top；
Also include guide-localization bar, guide-localization bar through radially connected hole stretch into be oriented to position-arresting groove in, guide-localization bar with lead
It is slidably matched to position-arresting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611009774.6A CN106641305A (en) | 2016-11-16 | 2016-11-16 | Water and gas linkage device for gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611009774.6A CN106641305A (en) | 2016-11-16 | 2016-11-16 | Water and gas linkage device for gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106641305A true CN106641305A (en) | 2017-05-10 |
Family
ID=58807253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611009774.6A Pending CN106641305A (en) | 2016-11-16 | 2016-11-16 | Water and gas linkage device for gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106641305A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490197A (en) * | 2017-08-08 | 2017-12-19 | 广东竣凯电器有限公司 | A kind of water vapor linked valve |
| CN111197865A (en) * | 2018-11-19 | 2020-05-26 | 芜湖美的厨卫电器制造有限公司 | Combined control device for instantaneous water heater and instantaneous water heater |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2090650B (en) * | 1980-12-02 | 1984-05-02 | Triton Aquatherm | Improvements in or relating to fluid flow control devices |
| CN2731350Y (en) * | 2004-10-22 | 2005-10-05 | 佛山市顺德区万和集团有限公司 | Water-gas linkage valve for gas combustion water-heater |
| CN2879035Y (en) * | 2005-09-20 | 2007-03-14 | 桂林工学院 | Low-pressure water heater controlling cool-hot water transformation by using water temperature regulating knob |
| CN201093757Y (en) * | 2007-09-13 | 2008-07-30 | 广东万家乐燃气具有限公司 | Water and gas interlocking valve body |
| CN201764708U (en) * | 2010-09-08 | 2011-03-16 | 中山华帝燃具股份有限公司 | Automatic temp. -regulating pressure-stabilizing water-gas linkage valve for gas water heater |
| CN202501038U (en) * | 2012-01-06 | 2012-10-24 | 广东万家乐燃气具有限公司 | Water-gas linkage valve |
| CN203083147U (en) * | 2012-12-20 | 2013-07-24 | 罗洁华 | Gas pressure maintaining valve water and gas interstage valve with igniting safety device |
| CN204878868U (en) * | 2015-07-07 | 2015-12-16 | 中山竣凯电器有限公司 | Water -gas linkage valve for gas combustion water -heater |
-
2016
- 2016-11-16 CN CN201611009774.6A patent/CN106641305A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2090650B (en) * | 1980-12-02 | 1984-05-02 | Triton Aquatherm | Improvements in or relating to fluid flow control devices |
| CN2731350Y (en) * | 2004-10-22 | 2005-10-05 | 佛山市顺德区万和集团有限公司 | Water-gas linkage valve for gas combustion water-heater |
| CN2879035Y (en) * | 2005-09-20 | 2007-03-14 | 桂林工学院 | Low-pressure water heater controlling cool-hot water transformation by using water temperature regulating knob |
| CN201093757Y (en) * | 2007-09-13 | 2008-07-30 | 广东万家乐燃气具有限公司 | Water and gas interlocking valve body |
| CN201764708U (en) * | 2010-09-08 | 2011-03-16 | 中山华帝燃具股份有限公司 | Automatic temp. -regulating pressure-stabilizing water-gas linkage valve for gas water heater |
| CN202501038U (en) * | 2012-01-06 | 2012-10-24 | 广东万家乐燃气具有限公司 | Water-gas linkage valve |
| CN203083147U (en) * | 2012-12-20 | 2013-07-24 | 罗洁华 | Gas pressure maintaining valve water and gas interstage valve with igniting safety device |
| CN204878868U (en) * | 2015-07-07 | 2015-12-16 | 中山竣凯电器有限公司 | Water -gas linkage valve for gas combustion water -heater |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490197A (en) * | 2017-08-08 | 2017-12-19 | 广东竣凯电器有限公司 | A kind of water vapor linked valve |
| CN111197865A (en) * | 2018-11-19 | 2020-05-26 | 芜湖美的厨卫电器制造有限公司 | Combined control device for instantaneous water heater and instantaneous water heater |
| CN111197865B (en) * | 2018-11-19 | 2024-04-05 | 芜湖美的厨卫电器制造有限公司 | Combined control device for quick-heating water heater and quick-heating water heater |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |