CN103967297A - Automatic swimming pool cleaning machine with filtering system capable of being cleaned easily - Google Patents
Automatic swimming pool cleaning machine with filtering system capable of being cleaned easily Download PDFInfo
- Publication number
- CN103967297A CN103967297A CN201410209771.1A CN201410209771A CN103967297A CN 103967297 A CN103967297 A CN 103967297A CN 201410209771 A CN201410209771 A CN 201410209771A CN 103967297 A CN103967297 A CN 103967297A
- Authority
- CN
- China
- Prior art keywords
- cleaning machine
- impeller
- swimming pool
- lower case
- clutch
- 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.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 34
- 230000009182 swimming Effects 0.000 title claims abstract description 26
- 238000001914 filtration Methods 0.000 title abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000002699 waste material Substances 0.000 claims description 4
- 239000010865 sewage Substances 0.000 claims description 3
- 230000000712 assembly Effects 0.000 abstract 2
- 238000000429 assembly Methods 0.000 abstract 2
- 238000005086 pumping Methods 0.000 abstract 1
- 238000011109 contamination Methods 0.000 description 4
- 230000003670 easy-to-clean Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The invention belongs to the field of swimming pool cleaning, and particularly relates to an automatic swimming pool cleaning machine with a filtering system capable of being cleaned easily. The automatic cleaning machine is composed of a non-power walking wheel, a lower cleaning machine shell, a rigid plane filtering net, impeller water power assemblies, an upper cleaning machine shell and an assembly lock catch, wherein the impeller water power assemblies are arranged at the two ends of a horizontal double-stretching-shaft motor respectively. When the motor rotates forwards, an impeller on one side is meshed with a clutch to rotate along with the motor in the same direction, and an impeller on the other side is not meshed with a corresponding clutch and does not rotate. Dirty water with dirt passes through a water inlet in the bottom of the lower cleaning machine shell to flow into the lower cleaning machine shell through pumping of the rotation impeller. The water inlet is provided with an inwards-opening type one-way valve, the dirty water can only flow into the lower cleaning machine shell but cannot flow out. The dirt is blocked and left in the lower cleaning machine shell through the rigid plane filtering net. The automatic swimming pool cleaning machine with the filtering system capable of being cleaned easily is simple in structure, easy to dismount and mount and convenient to clean.
Description
Technical field
The invention belongs to swimming pool cleaning applications, particularly, relate to a kind of automatic cleaning machine of swimming pool of tool easy to clean filtration system.
Background technology
At present, the contamination filtrating system of automatic cleaning machine of swimming pool has two kinds of modes: a kind of mode is to adopt contamination filtrating bag.Contamination filtrating bag for packing fruits on, on the water inlet of cleaner, is subject to the suction of impeller system, and the addle that carries dirt flows to filter bag; Dirt is delayed in bag, and the outflow filter bag of clean clear water after filtering, flows back in swimming pool again by the outfall of impeller system.The advantage of contamination filtrating bag is: due to its flexibility, can expand and easily fill chamber within cleaner, can hold more dirt.Its main deficiency is: filter bag is generally worked out, and the resistance that convection cell causes is larger, thereby impeller system needs larger suction capactity.And main, take out dirt and cleaning and filtering bag more difficult, cause inconvenience to user.Another kind of mode is to adopt filter cartridge.Filter cartridge generally has multiple holes on sidewall, and box overcoat has screen pack.Filter cartridge is also sleeved on the water inlet of cleaner, and its work principle of filter is similar to filter bag, and dirt is delayed in filter cartridge.The major advantage of filter cartridge is: filter cartridge tool rigidity, the resistance of convection cell is less.Filter cartridge be can easily from cleaner, take out, and without taking cleaner apart, and dirt and cleaning and filtering box taken out all than being easier to.But, being subject to the restriction in space, the filter cartridge that design can be held more dirt is not easily.In any case filter bag or filter cartridge are all the component that need manufacture.
Summary of the invention
For overcoming the defect of prior art existence, the invention provides a kind of automatic cleaning machine of swimming pool of tool easy to clean filtration system.
For achieving the above object, the present invention adopts following proposal:
Automatic cleaning machine of swimming pool, comprising: lower case, rigid plane filter screen, hydrodynamic force assembly, upper body; Rigid plane filter screen is between upper body and lower case; Hydrodynamic force assembly, is positioned at the space that upper body and rigid plane filter screen enclose.
With respect to prior art, the present invention has following beneficial effect:
1, cleaner lower case was both used for connecting non-power road wheel as chassis of vehicle body, also as container to retain dirt; Without additional filter bag or complicated filter cartridge, simplify the structure, and lower case inner space is larger, can hold more dirt.
2, adopt rigid plane filter screen, can effectively isolate lower case and upper body, had good filter effect.The resistance of rigid plane filter screen convection cell is less, has saved the power of hydrodynamic system, and rigid plane filter structure is simple, is convenient to manufacture.
3, the assembling snap close adopting can be assembled into complete machine by upper body, rigid plane filter screen and lower case rapidly, also can split rapidly, is convenient to cleaning.。
4, two of lower case water inlets, not only as water inlet, also can be used as carrying carrying handle and use.
Brief description of the drawings
Fig. 1 is automatic cleaning machine of swimming pool structural representation;
Fig. 2 is that automatic cleaning machine of swimming pool splits structural representation;
Fig. 3 is another fractionation structural representation of automatic cleaning machine of swimming pool;
In figure: 1a, the first outward opening one way valve, 1b, the second outward opening one way valve, 2a, the first delivery port enclosing cover, 2b, the second delivery port enclosing cover, 3a, the first kuppe, 3b, the second kuppe, 4a, the first steering ring, 4b, the second steering ring, 5a, the first water channel, 5b, the second water channel, 6a, the first impeller, 6b, the second impeller, 7a, first clutch, 7b, second clutch, 8, double extension shaft motor, 9, cleaner upper body; 10a, the first water inlet, 10b, the second water inlet, 11, rigid plane filter screen, 12, non-power road wheel, 13a, the first one way valve, 13b, the second one way valve, 14, the first motor for preventing protecting wire net, 15, cleaner lower case, 16, the second motor for preventing protecting wire net, 17a, the first assembling snap close, 17b, the second assembling snap close.
Detailed description of the invention
As shown in Figure 1, automatic cleaning machine of swimming pool, comprising: lower case 15, rigid plane filter screen 11, hydrodynamic force assembly, upper body 9; Rigid plane filter screen 11 is between upper body 9 and lower case 15;
As shown in Figure 2, the both sides of upper body 9 are respectively with the first assembling snap close 17a, the second assembling snap close 17b, and upper body 9 is assembled snap close 17b and rigid plane filter screen 11 and lower case 15 by the first assembling snap close 17a, second and fastened; Or as shown in Figure 3, the both sides of lower case 15 are with the first assembling snap close 17a, the second assembling snap close 17b, and lower case 15 is assembled snap close 17b and rigid plane filter screen 11 and upper body 9 by the first assembling snap close 17a, second and fastened;
Hydrodynamic force assembly, is positioned at the space that upper body 9 and rigid plane filter screen 11 enclose.
Lower case 15 is both as cleaner chassis, again as waste rexeptacle; Lower case 15 connects four non-power road wheels, and there is larger space lower case 15 inside as waste rexeptacle, without additional filter bag or filter cartridge; The rear and front end of lower case 15 is respectively equipped with the first water inlet 10a, the second water inlet 10b, the first water inlet 10a is provided with the first one way valve 13a, the second water inlet 10b is provided with the second one way valve 13b, and the first one way valve, the second one way valve are inner-opening type one way valve; Sewage enters lower case 15 by the first one way valve 13a, the second one way valve 13b; The first water inlet 10a, the second water inlet 10b, except doing water inlet, also can be used as operation handle, are convenient to mention cleaning machine.
Hydrodynamic force assembly, comprising: double extension shaft motor 8, first clutch 7a, the first impeller 6a, second clutch 7b and the second impeller 6b; The first impeller 6a is connected with one end of double extension shaft motor 8 by first clutch 7a, and the second impeller 6b is connected with the other end of double extension shaft motor 8 by second clutch 7b; The end face of impeller has engaging tooth, and clutch is jaw clutch, and impeller, clutch can be realized engagement or depart from engagement; The impeller that determines which side that turns to of motor enters engagement and turns round or depart from engagement and do not turn.
The first motor for preventing protecting wire net 14 and the second motor for preventing protecting wire net 16 are fixed on hydrodynamic force assembly the centre of upper body 9; One side of hydrodynamic force assembly is equipped with the first water channel 5a, the first steering ring 4a, the first kuppe 3a, the first delivery port enclosing cover 2a, the first outward opening one way valve 1a, forms the outlet passage of a direction; The opposite side of hydrodynamic force assembly is equipped with the second water channel 5b, the second steering ring 4b, the second kuppe 3b, the second delivery port enclosing cover 2b, the second outward opening one way valve 1b, forms the outlet passage of another direction.
In the time of drive motors 8 forward revolution, the first impeller 6a turns round in the same way by first clutch 7a and motor, and the second impeller 6b engages and do not rotate with second clutch 7b disengaging; Be subject to the first impeller swabbing action, sewage, by the first water inlet 10a, the second water inlet 10b of lower case, enters lower case 15 by the first one way valve 13a, the second one way valve 13b; Dirt in water is because rigid plane filter screen 11 intercepts, and remains in lower case 15; Clear water flows through screen pack 11, through hydrodynamic force assembly, water channel 5a, steering ring 4a, kuppe 3a, the first one way valve 1a flow into swimming pool, with the clear water of certain speed jet flow, cleaning machine are produced to reaction, drive the non-dynamic wheel of cleaner to realize the walking reverse with jet flow.Walk along direction A.
In the time of drive motors 8 reversed turning, the second impeller 6b turns round in the same way by first clutch 7b and motor, and the first impeller 6a engages and do not rotate with first clutch 7a disengaging; Its operating principle is similar during to motor main story, and just outlet passage is along water channel 5b, steering ring 4b, and kuppe 3b, the second one way valve 1b flow into swimming pool.The direction of travel of cleaner is contrary with A.
Want to take out cleaner from water, hand thumb is pressed in lower case outside, and all the other four fingers stretch into the first water inlet 10a (or second water inlet 10b) of lower case.In shell, clear water flows into swimming pool from the second one way valve 1b (or first one way valve 1a) of upper body, cleaner can be proposed from water.
Outwards upset two assembling snap close 17a, 17b, cleaner is split.Can from lower case 15, pour out dirt.Also clean easily lower case 15 and rigid plane filter screen 11.
Claims (8)
1. an automatic cleaning machine of swimming pool, comprising: lower case, rigid plane filter screen, hydrodynamic force assembly, upper body; Rigid plane filter screen is between upper body and lower case; It is characterized in that: hydrodynamic force assembly, is positioned at the space that upper body and rigid plane filter screen enclose.
2. automatic cleaning machine of swimming pool according to claim 1, is characterized in that: hydrodynamic force assembly, comprising: double extension shaft motor, first clutch, the first impeller, second clutch and the second impeller; The first impeller is connected with one end of double extension shaft motor by first clutch, and the second impeller is connected with the other end of double extension shaft motor by second clutch; The end face of the first impeller, the second impeller has engaging tooth, and first clutch, second clutch are jaw clutch, and the first impeller, first clutch are realized engagement or departed from engagement; The second impeller, second clutch are realized engagement or are departed from engagement.
3. according to the automatic cleaning machine of swimming pool described in claim 1-2, it is characterized in that: lower case is both as cleaner chassis, again as waste rexeptacle.
4. according to the automatic cleaning machine of swimming pool described in claim 1-3, it is characterized in that: lower case connects four non-power road wheels, and there is larger space lower case inside as waste rexeptacle, without additional filter bag or filter cartridge.
5. according to the automatic cleaning machine of swimming pool described in claim 1-4, it is characterized in that: the rear and front end of lower case is respectively equipped with the first water inlet, the second water inlet, the first water inlet is provided with the first one way valve, the second water inlet is provided with the second one way valve, and the first one way valve, the second one way valve are inner-opening type one way valve; Sewage enters lower case by the first one way valve, the second one way valve; The first water inlet, the second water inlet are except doing water inlet, also as operation handle.
6. according to the automatic cleaning machine of swimming pool described in claim 1-5, it is characterized in that: the first motor for preventing protecting wire net and the second motor for preventing protecting wire net are fixed on hydrodynamic force assembly the centre of upper body; One side of hydrodynamic force assembly is equipped with the first water channel, the first steering ring, the first kuppe, the first delivery port enclosing cover, the first outward opening one way valve, forms the outlet passage of a direction; The opposite side of hydrodynamic force assembly is equipped with the second water channel, the second steering ring, the second kuppe, the second delivery port enclosing cover, the second outward opening one way valve, forms the outlet passage of another direction.
7. according to the automatic cleaning machine of swimming pool described in claim 1-6, it is characterized in that: the both sides of upper body are respectively with the first assembling snap close, the second assembling snap close, and upper body fastens by the first assembling snap close, the second assembling snap close and rigid plane filter screen and lower case.
8. according to the automatic cleaning machine of swimming pool described in claim 1-6, it is characterized in that: the both sides of lower case are with the first assembling snap close, the second assembling snap close, and lower case fastens by the first assembling snap close, the second assembling snap close and rigid plane filter screen and upper body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410209771.1A CN103967297B (en) | 2014-05-09 | 2014-05-09 | Has the automatic cleaning machine of swimming pool of easy to clean filtration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410209771.1A CN103967297B (en) | 2014-05-09 | 2014-05-09 | Has the automatic cleaning machine of swimming pool of easy to clean filtration system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103967297A true CN103967297A (en) | 2014-08-06 |
| CN103967297B CN103967297B (en) | 2018-06-12 |
Family
ID=51237261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410209771.1A Active CN103967297B (en) | 2014-05-09 | 2014-05-09 | Has the automatic cleaning machine of swimming pool of easy to clean filtration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103967297B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625761A (en) * | 2014-11-24 | 2016-06-01 | 升广有限公司 | Jet propelled pool cleaner |
| CN107019893A (en) * | 2017-05-30 | 2017-08-08 | 宁德职业技术学院 | A kind of indoor swimming machine |
| CN107258661A (en) * | 2017-08-07 | 2017-10-20 | 重庆大学 | Underwater cleaning robot |
| CN107989417A (en) * | 2017-11-01 | 2018-05-04 | 广州市协和中学 | The landscape pond sewage absorpting heat and dirt sucking device of a kind of automated cleaning |
| CN108708449A (en) * | 2016-11-07 | 2018-10-26 | 山东博禧堂贸易有限公司 | Landscape pond automatic cleaning apparatus |
| CN110107123A (en) * | 2019-05-05 | 2019-08-09 | 天津望圆环保科技有限公司 | A kind of cleaning machine for water tank mechanical commutation Chu Bi testing agency |
| US10407931B2 (en) | 2016-09-02 | 2019-09-10 | Aqua Products, Inc. | Modular swimming pool cleaner |
| WO2019205861A1 (en) * | 2018-04-28 | 2019-10-31 | 天津望圆环保科技有限公司 | Wall-contact detection device for swimming pool cleaning machine |
| WO2024040641A1 (en) * | 2022-08-25 | 2024-02-29 | 深圳市思傲拓科技有限公司 | Swimming pool cleaning robot and control method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996013644A1 (en) * | 1994-10-28 | 1996-05-09 | Sweepy International S.A. | Automatic swimming pool cleaners and associated components |
| US5882512A (en) * | 1997-11-05 | 1999-03-16 | Baracuda International Corporation | Automatic swimming pool cleaners and associated components and systems |
| CN2775214Y (en) * | 2004-12-29 | 2006-04-26 | 明达塑胶（厦门）有限公司 | Cleaner for pool bottom |
| CN101033650A (en) * | 2006-03-07 | 2007-09-12 | 卓景顾问有限公司 | Pool cleaning machine driven by waterpower |
| CN101280633A (en) * | 2007-04-03 | 2008-10-08 | 水疗动力有限公司 | Water tank cleaning machine |
| CN101666168A (en) * | 2009-09-30 | 2010-03-10 | 付桂兰 | Swimming pool bottom hydro power pushed automatic cleaner |
| CN201826557U (en) * | 2010-09-15 | 2011-05-11 | 李敏 | Cleaning brush for swimming pool |
| CN301574225S (en) * | 2010-11-16 | 2011-06-08 | 付桂兰 | Automatic water-powered cleaning machine for swimming pool bottom (orange red) |
-
2014
- 2014-05-09 CN CN201410209771.1A patent/CN103967297B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996013644A1 (en) * | 1994-10-28 | 1996-05-09 | Sweepy International S.A. | Automatic swimming pool cleaners and associated components |
| US5882512A (en) * | 1997-11-05 | 1999-03-16 | Baracuda International Corporation | Automatic swimming pool cleaners and associated components and systems |
| CN2775214Y (en) * | 2004-12-29 | 2006-04-26 | 明达塑胶（厦门）有限公司 | Cleaner for pool bottom |
| CN101033650A (en) * | 2006-03-07 | 2007-09-12 | 卓景顾问有限公司 | Pool cleaning machine driven by waterpower |
| CN101280633A (en) * | 2007-04-03 | 2008-10-08 | 水疗动力有限公司 | Water tank cleaning machine |
| CN101666168A (en) * | 2009-09-30 | 2010-03-10 | 付桂兰 | Swimming pool bottom hydro power pushed automatic cleaner |
| CN201826557U (en) * | 2010-09-15 | 2011-05-11 | 李敏 | Cleaning brush for swimming pool |
| CN301574225S (en) * | 2010-11-16 | 2011-06-08 | 付桂兰 | Automatic water-powered cleaning machine for swimming pool bottom (orange red) |
| CN301574226S (en) * | 2010-11-16 | 2011-06-08 | 付桂兰 | Water-powered automatic cleaning machine for swimming pool bottom (green and white) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625761A (en) * | 2014-11-24 | 2016-06-01 | 升广有限公司 | Jet propelled pool cleaner |
| US10407931B2 (en) | 2016-09-02 | 2019-09-10 | Aqua Products, Inc. | Modular swimming pool cleaner |
| CN108708449A (en) * | 2016-11-07 | 2018-10-26 | 山东博禧堂贸易有限公司 | Landscape pond automatic cleaning apparatus |
| CN108708449B (en) * | 2016-11-07 | 2020-04-07 | 蔡雅婷 | Automatic cleaning device for landscape pool |
| CN107019893A (en) * | 2017-05-30 | 2017-08-08 | 宁德职业技术学院 | A kind of indoor swimming machine |
| CN107258661A (en) * | 2017-08-07 | 2017-10-20 | 重庆大学 | Underwater cleaning robot |
| CN107989417A (en) * | 2017-11-01 | 2018-05-04 | 广州市协和中学 | The landscape pond sewage absorpting heat and dirt sucking device of a kind of automated cleaning |
| CN107989417B (en) * | 2017-11-01 | 2024-03-22 | 广州市协和中学 | Automatic clean view pond dirt absorber |
| WO2019205861A1 (en) * | 2018-04-28 | 2019-10-31 | 天津望圆环保科技有限公司 | Wall-contact detection device for swimming pool cleaning machine |
| CN110107123A (en) * | 2019-05-05 | 2019-08-09 | 天津望圆环保科技有限公司 | A kind of cleaning machine for water tank mechanical commutation Chu Bi testing agency |
| WO2024040641A1 (en) * | 2022-08-25 | 2024-02-29 | 深圳市思傲拓科技有限公司 | Swimming pool cleaning robot and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103967297B (en) | 2018-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103967297A (en) | Automatic swimming pool cleaning machine with filtering system capable of being cleaned easily | |
| US8393031B2 (en) | Apparatus for cleaning a submerged surface with removable filtration device | |
| US8615836B2 (en) | Apparatus for cleaning a submerged surface with a disconnectable dirty circuit | |
| US20200229667A1 (en) | Robot cleaner | |
| CN203862000U (en) | Waste water purification device | |
| WO2016119663A1 (en) | Floor cleaning robot and water collection apparatus thereof | |
| CN215383700U (en) | Water tank assembly, cleaning robot and cleaning robot base station | |
| CN112690720A (en) | Floor cleaning machine | |
| CN203867738U (en) | Dust remover for multi-stage cyclone engine | |
| CN208228904U (en) | A kind of dust catcher suitable for underwater operation | |
| CN203619504U (en) | Water guide cover with filter | |
| US20130075323A1 (en) | Water Treatment Apparatus | |
| CN111405863A (en) | Floor wiping robot and cleaning method thereof | |
| US11759732B2 (en) | Water cleaner | |
| CN202098757U (en) | Layering garbage can | |
| CN102334951B (en) | There is the dust bucket of two compression plate structure | |
| EP2733118A1 (en) | Water treatment apparatus | |
| CN207822650U (en) | A kind of cleaner for filter element | |
| CN209944608U (en) | Air purification equipment for smart home based on Internet of things | |
| CN200973466Y (en) | Cleaning brush | |
| CN206102578U (en) | Recycling bin structure and carpet cleaning machine | |
| CN103735110A (en) | Convenient, safe and rapid water purifying kettle | |
| CN213573229U (en) | Two-wheel automatic cleaner for swimming pool | |
| CN204095769U (en) | A kind of ceramic flusher | |
| CN202876488U (en) | Self-cleaning filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Fu Guilan Document name: Notification of Publication of the Application for Invention |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180720 Address after: 300462 No. 30, Zhongnan four street, West District, Tianjin economic and Technological Development Zone. Patentee after: TIANJIN WANGYUAN ENVIRONMENTAL PROTECTION & TECHNOLOGY CO., LTD. Address before: 300385 Tianjin City TEDA (Xiqing) Microelectronics Industrial Park, 3-D Co-patentee before: Yu Qian Patentee before: Fu Guilan |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 300462 No. 30, Zhongnan 4th Street, West District, economic and Technological Development Zone, Binhai New Area, Tianjin Patentee after: Tianjin Wangyuan Intelligent Technology Co.,Ltd. Address before: 300462 No. 30, Zhongnan four street, West District, Tianjin economic and Technological Development Zone. Patentee before: TIANJIN WANGYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |