CN104047444B - Energy-saving ability of swimming shower house - Google Patents
Energy-saving ability of swimming shower house Download PDFInfo
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- CN104047444B CN104047444B CN201410289377.3A CN201410289377A CN104047444B CN 104047444 B CN104047444 B CN 104047444B CN 201410289377 A CN201410289377 A CN 201410289377A CN 104047444 B CN104047444 B CN 104047444B
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- heat
- chassis
- shower house
- energy
- glassy layer
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- 230000009182 swimming Effects 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 238000003860 storage Methods 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 239000011521 glass Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 4
- 241000168254 Siro Species 0.000 claims description 3
- 238000009987 spinning Methods 0.000 claims description 3
- 238000004134 energy conservation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000003287 bathing Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
- Bathtubs, Showers, And Their Attachments (AREA)
Abstract
The invention belongs to sanitary ware technical field, especially relate to a kind of energy-saving ability of swimming shower house.This energy-conservation water-saving type shower house, comprise the chassis be arranged on bottom shower house, on chassis, circumference is with glass perisporium and is provided with heat interchanger in chassis, heat interchanger one end is connected with water inlet pipe, the other end is connected with heater by outlet pipe, it is characterized in that, chassis is hollow and chassis is provided with several can be communicated with ostium inside and outside chassis, the filtration shelf that heat exchanger is placed and the filter be located on heat interchanger is provided with in chassis, storage tank is formed between chassis and filtration shelf, chassis is provided with heat insulating mattress with holes, heater jacket is provided with heat collector, heat collector comprises heat-collecting heat-preserving shell, heat-collecting heat-preserving shell inner circumferential is distributed with the thermal-arrest pipeline bent back and forth, thermal-arrest pipeline output is connected with the water inlet of outlet pipe by flexible steel in flat section tubing, input is connected with the exit branch being arranged on outlet pipe water outlet end.
Description
Technical field
The invention belongs to sanitary ware technical field, especially relate to a kind of energy-saving ability of swimming shower house.
Background technology
Shower house is independent shower compartment, and the requirement of modern house to bathroom facility is more and more higher, and many families all wish an independently Takd A Bath The Space, but due to room sanitary space limited, Bathing apparatus and sanitaryware can only be placed in a Room.Shower house makes full use of indoor one jiao, clearly divides out by shower area with fence, forms relatively independent Takd A Bath The Space.Shower house is divided into integral shower room and Simple bathing room by function; Be divided into corner shape shower house, in-line to bathe bath on screen, circular arc shower house, bathtub by style to shield; Square, wholecircle shape, fan-shaped, diamond shower house etc. is divided into by the shape on chassis; Sliding door, folding door, vertical hinged door shower house etc. are divided into by door.During shower, large water gaging shower is got off, and directly enters sewer, not only has a lot of waste heats to be wasted, wastes a large amount of water resources simultaneously, the peripheral a large amount of heat that can scatter and disappear of heater in heating process.
In order to improve prior art, people have carried out long-term exploration, propose various solution.Such as, Chinese patent literature discloses a kind of shower house [application number: CN200910119510.X] reclaimed by waste heat of showering water, water inlet pipe and outlet pipe is provided with in shower house side, end basin is arranged at bottom, the soffit of end basin is to recessed, a heat interchanger is put in groove, the surface paving heat insulating mattress of heat interchanger, porose on heat insulating mattress, waste water directly drenches on heat insulating mattress, the water inlet of heat interchanger is connected on tap water water inlet pipe, delivery port is connected on the cold water pipe of room body list handle by geyser, the bottom portion of groove of end basin has floor drain to be drained by the cold water after over-heat-exchanger.
Although such scheme to some extent solves the deficiencies in the prior art, although can by the heat recovery of shower water, the cold water after over-heat-exchanger be drained by it, is a kind of waste to water resource, in addition, the peripheral a large amount of heat that can scatter and disappear of heater is not recycled.
Summary of the invention
The object of the invention is for the problems referred to above, provide a kind of reasonable in design, structure is simple, can recycle the energy-saving ability of swimming shower house of waste heat and water resource.
For achieving the above object, present invention employs following technical proposal: this energy-conservation water-saving type shower house, comprise the chassis be arranged on bottom shower house, on described chassis, circumference is with glass perisporium and is provided with heat interchanger in chassis, described heat interchanger one end is connected with water inlet pipe, the other end is connected with heater by outlet pipe, it is characterized in that, described chassis is hollow and chassis is provided with several can be communicated with ostium inside and outside chassis, the filtration shelf that heat exchanger is placed and the filter be located on heat interchanger is provided with in described chassis, storage tank is formed between described chassis and filtration shelf, described chassis is provided with heat insulating mattress with holes, described heater jacket is provided with heat collector, described heat collector comprises heat-collecting heat-preserving shell, described heat-collecting heat-preserving shell inner circumferential is distributed with the thermal-arrest pipeline bent back and forth, described thermal-arrest pipeline output is connected with the water inlet of outlet pipe by flexible steel in flat section tubing, input is connected with the exit branch being arranged on outlet pipe water outlet end.
The hot water that shower is got off, ostium on chassis flows to filter, device flows to heat interchanger after filtering after filtration, the heat that heat interchanger absorbs in shower water passes to the water entered in water inlet pipe, cold water then after filtration shelf enter into storage tank, current in water inlet pipe take away heat through heat interchanger, flow in heater through outlet pipe again, this process preheats water, achieve the recycling of the heat in shower water, water in storage tank can as subsequent use, heat collector is then collect the peripheral dispersed heat of heater, also certain insulation effect is played to heater, heater dispersed heat passes to thermal-arrest pipeline, the water of heat has been had to flow in flexible steel in flat section tubing, shower house is played to the effect of temperature raising or insulation, then flow in outlet pipe, again flow in thermal-arrest pipeline finally by exit branch and carry out thermal-arrest, circulation repeatedly.
In above-mentioned energy-saving ability of swimming shower house, described glass perisporium comprises interior glassy layer and outer glassy layer, described flexible steel in flat section tubing to be located between interior glassy layer and outer glassy layer and to be spirally looped around on interior glassy layer with all having, and is provided with insulation layer between described outer glassy layer and flexible steel in flat section tubing.Water in described flexible steel in flat section tubing has certain temperature raising or insulation effect to shower house, and insulation layer prevents heat loss, adapts to the environment that the heats such as winter easily scatter and disappear.
In above-mentioned energy-saving ability of swimming shower house, described storage tank side wall upper part has the first delivery port, the two side of the first described delivery port is inwardly recessed and forms symmetrical groove, is inserted with watertight shutter and watertight shutter can move up and down along groove in described groove.When needing to use the water in storage tank, delivery port opened by the watertight shutter that moves up, and water can flow out, and when not needing to use, moves down watertight shutter and closes delivery port, easy to use.
In above-mentioned energy-saving ability of swimming shower house, the first described delivery port two outer wall stretches out formation effluent trough, and described effluent trough is connected with annular millpond.After opening delivery port, it is for subsequent use that water flow into annular millpond from storage tank.
In above-mentioned energy-saving ability of swimming shower house, being provided with between described interior glassy layer and outer glassy layer can the fixed structure of supporting flexible tube connector.Avoid because of flexible steel in flat section tubing irregular that to put the current caused not smooth.
In above-mentioned energy-saving ability of swimming shower house, described fixed structure comprises the fixed bar that two support bars being arranged on flexible steel in flat section tubing bottom and are arranged on flexible steel in flat section tubing top, and described fixed bar is between two support bars.Described support bar plays the effect of support to flexible steel in flat section tubing, and fixed bar is then produce a downforce to flexible steel in flat section tubing.
In above-mentioned energy-saving ability of swimming shower house, described filter comprises the first screen pack and the second screen pack, the periphery of the first described screen pack and chassis upper circumference compact siro spinning technology and centre to lower recess, the second described screen pack is planar shaped.In general, shower water flows to the many of the first screen pack from periphery, impurity or dirt remain in the periphery of the first screen pack, due to the descending slope that the first screen pack is recessed to form downwards, impurity or dirt are assembled to recess under the shower of follow-up shower water, facilitate the cleaning of subsequent filter net and prevent the first screen pack periphery blocking, the second screen pack is then as second defence line, and the trickle that liquidates filters again.
Compared with prior art, the advantage of this energy-conservation water-saving type shower house is: reasonable in design, structure is simple, waste heat and water resource can be recycled, also can recycle the peripheral a large amount of heat that can scatter and disappear of heater, comparatively environmental protection, energy-saving and water-saving is effective, adapt to the environment that the heats such as winter easily scatter and disappear, collected waste heat may be used for shower house temperature raising or insulation, high insulating effect, preheating water can also be used for, energy conservation, multiple filtration, the water reclaiming gained is comparatively clean, storage tank is easy to use, flexible steel in flat section tubing fixation, good stability, global design is reasonable, practical.
Accompanying drawing explanation
Fig. 1 is structural representation provided by the invention.
Fig. 2 is partial sectional view provided by the invention.
In figure, chassis 1, glass perisporium 2, heat interchanger 3, water inlet pipe 4, outlet pipe 5, heater 6, filtration shelf 7, filter 8, storage tank 9, heat insulating mattress 10, heat collector 11, heat-collecting heat-preserving shell 12, thermal-arrest pipeline 13, flexible steel in flat section tubing 14, exit branch 15, interior glassy layer 16, outer glassy layer 17, first delivery port 18, watertight shutter 19, effluent trough 20, annular millpond 21, first screen pack 22, second screen pack 23.
Detailed description of the invention
Embodiment 1
As shown in Figure 1-2, this energy-conservation water-saving type shower house, comprise the chassis 1 be arranged on bottom shower house, on chassis 1, circumference is with glass perisporium 2 and is provided with heat interchanger 3 in chassis 1, heat interchanger 3 one end is connected with water inlet pipe 4, the other end is connected with heater 6 by outlet pipe 5, it is characterized in that, chassis 1 is hollow and chassis 1 is provided with several can be communicated with ostium inside and outside chassis 1, the filtration shelf 7 that heat exchanger 3 is placed and the filter 8 be located on heat interchanger 3 is provided with in chassis 1, storage tank 9 is formed between chassis 1 and filtration shelf 7, chassis 1 is provided with heat insulating mattress 10 with holes, heat collector 11 is arranged with outside heater 6, heat collector 11 comprises heat-collecting heat-preserving shell 12, heat-collecting heat-preserving shell 12 inner circumferential is distributed with the thermal-arrest pipeline 13 bent back and forth, thermal-arrest pipeline 13 output is connected by the water inlet of flexible steel in flat section tubing 14 with outlet pipe 5, input is connected with the exit branch 15 being arranged on outlet pipe 5 water outlet end.The hot water that shower is got off, filter 8 is flowed to through the One On The Chassis ostium, device 8 flows to heat interchanger 3 after filtering after filtration, heat interchanger 3 heat absorbed in shower water passes to the water entered in water inlet pipe 4, cold water then after filtration shelf 7 enter into storage tank 9, current in water inlet pipe 4 take away heat through heat interchanger 3, flow in heater 6 through outlet pipe 5 again, this process preheats water, achieve the recycling of the heat in shower water, water in storage tank 9 can as subsequent use, heat collector 11 collects the peripheral dispersed heat of heater 6, also certain insulation effect is played to heater 6, heater 6 dispersed heat passes to thermal-arrest pipeline 13, the water of heat has been had to flow in flexible steel in flat section tubing 14, shower house is played to the effect of temperature raising or insulation, then flow in outlet pipe 5, again flow in thermal-arrest pipeline 13 finally by exit branch 15 and carry out thermal-arrest, circulation repeatedly.
Wherein, glass perisporium 2 comprises interior glassy layer 16 and outer glassy layer 17, and flexible steel in flat section tubing 14 to be located between interior glassy layer 16 and outer glassy layer 17 and to be spirally looped around with all having on interior glassy layer 16, is provided with insulation layer between outer glassy layer 17 and flexible steel in flat section tubing 14.Water in flexible steel in flat section tubing 14 has certain temperature raising or insulation effect to shower house, and insulation layer prevents heat loss, adapts to the environment that the heats such as winter easily scatter and disappear.Improve as one, storage tank 9 side wall upper part has the first delivery port 18, the two side of the first delivery port 18 is inwardly recessed and forms symmetrical groove, be inserted with watertight shutter 19 in groove and watertight shutter 19 can move up and down along groove, when needing to use the water in storage tank 9, delivery port 18 opened by the watertight shutter 19 that moves up, water can flow out, when not needing to use, move down watertight shutter 19 and close delivery port 18, easy to use.Improve as one, the first delivery port 18 liang outer wall stretches out and forms effluent trough 20, and effluent trough 20 is connected with annular millpond 21, and after opening delivery port 18, it is for subsequent use that water flow into annular millpond 21 from storage tank 9.Improve as one, being provided with between interior glassy layer 16 and outer glassy layer 17 can the fixed structure of supporting flexible tube connector 14, avoids because of flexible steel in flat section tubing 14 irregular that to put the current caused not smooth.Fixed structure comprises the fixed bar that two support bars being arranged on flexible steel in flat section tubing 14 bottom and are arranged on flexible steel in flat section tubing 14 top, fixed bar is between two support bars, support bar plays the effect of support to flexible steel in flat section tubing 14, and fixed bar is then produce a downforce to flexible steel in flat section tubing 14.Filter 8 comprise the periphery of the first screen pack 22 and the second screen pack 23, first screen pack 22 and chassis upper circumference compact siro spinning technology and centre to lower recess, the second screen pack 23 is planar shaped.In general, shower water flows to the many of the first screen pack 22 from periphery, impurity or dirt remain in the periphery of the first screen pack 22, due to the descending slope that the first screen pack 22 is recessed to form downwards, impurity or dirt are assembled to recess under the shower of follow-up shower water, facilitate the cleaning of subsequent filter net and prevent the first screen pack 22 periphery blocking, the second screen pack 23 is as second defence line, and the trickle that liquidates filters again.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ chassis 1, glass perisporium 2, heat interchanger 3, water inlet pipe 4, outlet pipe 5, heater 6 herein, filter the terms such as shelf 7, filter 8, storage tank 9, heat insulating mattress 10, heat collector 11, heat-collecting heat-preserving shell 12, thermal-arrest pipeline 13, flexible steel in flat section tubing 14, exit branch 15, interior glassy layer 16, outer glassy layer 17, first delivery port 18, watertight shutter 19, effluent trough 20, annular millpond 21, first screen pack 22, second screen pack 23, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (6)
1. an energy-saving ability of swimming shower house, comprise the chassis (1) be arranged on bottom shower house, the upper circumference in described chassis (1) is with glass perisporium (2) and is provided with heat interchanger (3) in chassis (1), described heat interchanger (3) one end is connected with water inlet pipe (4), the other end is connected with heater (6) by outlet pipe (5), it is characterized in that, described chassis (1) is for hollow and chassis (1) is provided with several can be communicated with ostium inside and outside chassis (1), the filtration shelf (7) that heat exchanger (3) is placed and the filter (8) be located on heat interchanger (3) is provided with in described chassis (1), storage tank (9) is formed between described chassis (1) and filtration shelf (7), described chassis (1) is provided with heat insulating mattress (10) with holes, heat collector (11) is arranged with outside described heater (6), described heat collector (11) comprises heat-collecting heat-preserving shell (12), described heat-collecting heat-preserving shell (12) inner circumferential is distributed with the thermal-arrest pipeline (13) bent back and forth, described thermal-arrest pipeline (13) output is connected by the water inlet of flexible steel in flat section tubing (14) with outlet pipe (5), input is connected with the exit branch (15) being arranged on outlet pipe (5) water outlet end, described glass perisporium (2) comprises interior glassy layer (16) and outer glassy layer (17), described flexible steel in flat section tubing (14) to be located between interior glassy layer (16) and outer glassy layer (17) and to be spirally looped around with all having on interior glassy layer (16), insulation layer is provided with between described outer glassy layer (17) and flexible steel in flat section tubing (14).
2. energy-saving ability of swimming shower house according to claim 1, it is characterized in that, described storage tank (9) side wall upper part has the first delivery port (18), the two side of described the first delivery port (18) is inwardly recessed and forms symmetrical groove, is inserted with watertight shutter (19) and watertight shutter (19) can move up and down along groove in described groove.
3. energy-saving ability of swimming shower house according to claim 2, it is characterized in that, the first described delivery port (18) two outer wall stretches out and forms effluent trough (20), and described effluent trough (20) is connected with annular millpond (21).
4. energy-saving ability of swimming shower house according to claim 3, is characterized in that, being provided with between described interior glassy layer (16) and outer glassy layer (17) can the fixed structure of supporting flexible tube connector (14).
5. energy-saving ability of swimming shower house according to claim 4, it is characterized in that, described fixed structure comprises the fixed bar that two support bars being arranged on flexible steel in flat section tubing (14) bottom and are arranged on flexible steel in flat section tubing (14) top, and described fixed bar is between two support bars.
6. energy-saving ability of swimming shower house according to claim 5, it is characterized in that, described filter (8) comprises the first screen pack (22) and the second screen pack (23), the periphery of described the first screen pack (22) and chassis upper circumference compact siro spinning technology and centre to lower recess, described the second screen pack (23) is planar shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289377.3A CN104047444B (en) | 2014-06-25 | 2014-06-25 | Energy-saving ability of swimming shower house |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289377.3A CN104047444B (en) | 2014-06-25 | 2014-06-25 | Energy-saving ability of swimming shower house |
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| Publication Number | Publication Date |
|---|---|
| CN104047444A CN104047444A (en) | 2014-09-17 |
| CN104047444B true CN104047444B (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410289377.3A Active CN104047444B (en) | 2014-06-25 | 2014-06-25 | Energy-saving ability of swimming shower house |
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| Country | Link |
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| CN (1) | CN104047444B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918141A (en) * | 2015-12-24 | 2017-07-04 | 绍兴市柯桥区柯桥中学 | A kind of energy-saving water heater servicing unit |
| CN110939360A (en) * | 2019-11-22 | 2020-03-31 | 浙江万物科技有限公司 | Shielding door suitable for shower room |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2407702Y (en) * | 1999-08-30 | 2000-11-29 | 苏武民 | Energy saving heatexchange shower |
| CN2937258Y (en) * | 2005-07-04 | 2007-08-22 | 苏武民 | Energy-saving water saving shower |
| CN201196536Y (en) * | 2008-01-30 | 2009-02-18 | 宁一公 | Bath wastewater exhaust heat recovery apparatus |
| CN201276728Y (en) * | 2008-08-08 | 2009-07-22 | 尤铁学 | Household water-saving energy-saving apparatus |
| CN101828881A (en) * | 2009-03-12 | 2010-09-15 | 阿波罗（中国）有限公司 | Shower room capable of recovering waste heat of shower water |
| CN202122527U (en) * | 2011-03-25 | 2012-01-25 | 刘军林 | Heat insulation shower bath room with function of recycling heat energy |
| CN203947805U (en) * | 2014-06-25 | 2014-11-19 | 德清艾希德卫浴洁具有限公司 | Energy-saving ability of swimming shower house |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080060796A1 (en) * | 2006-09-12 | 2008-03-13 | Ying Lin Cai | Heat exchange device for hot water of shower and bath |
-
2014
- 2014-06-25 CN CN201410289377.3A patent/CN104047444B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2407702Y (en) * | 1999-08-30 | 2000-11-29 | 苏武民 | Energy saving heatexchange shower |
| CN2937258Y (en) * | 2005-07-04 | 2007-08-22 | 苏武民 | Energy-saving water saving shower |
| CN201196536Y (en) * | 2008-01-30 | 2009-02-18 | 宁一公 | Bath wastewater exhaust heat recovery apparatus |
| CN201276728Y (en) * | 2008-08-08 | 2009-07-22 | 尤铁学 | Household water-saving energy-saving apparatus |
| CN101828881A (en) * | 2009-03-12 | 2010-09-15 | 阿波罗（中国）有限公司 | Shower room capable of recovering waste heat of shower water |
| CN202122527U (en) * | 2011-03-25 | 2012-01-25 | 刘军林 | Heat insulation shower bath room with function of recycling heat energy |
| CN203947805U (en) * | 2014-06-25 | 2014-11-19 | 德清艾希德卫浴洁具有限公司 | Energy-saving ability of swimming shower house |
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| CN104047444A (en) | 2014-09-17 |
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Effective date of registration: 20170511 Address after: 333000 Jiangxi Province, Jingdezhen City Changjiang District Liyang Township Stone Village No. 167 Patentee after: Wang Qinghua Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170511 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 313217 Deqing County, Huzhou, Xin'an Town, Shao Jia Wan, No. 50, No. Patentee before: DEQING EXCEED SANITARY WARE Co.,Ltd. |
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Effective date of registration: 20220223 Address after: 226100 Room 303, South Building, No. 15, Renmin West Road, Yuelai Town, Haimen District, Nantong City, Jiangsu Province Patentee after: Nantong Yinzhu Energy Saving Technology Service Co.,Ltd. Address before: 226000 Haimen Economic and Technological Development Zone, Nantong City, Jiangsu Province, No. 999 Guangzhou Road Patentee before: Nantong Construction Engineering Co.,Ltd. |
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