CN102359168B - Intelligent closestool and nozzle device capable of spraying swirling water current of intelligent closestool - Google Patents
Intelligent closestool and nozzle device capable of spraying swirling water current of intelligent closestool Download PDFInfo
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- CN102359168B CN102359168B CN201110237509.4A CN201110237509A CN102359168B CN 102359168 B CN102359168 B CN 102359168B CN 201110237509 A CN201110237509 A CN 201110237509A CN 102359168 B CN102359168 B CN 102359168B
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- swirling chamber
- channel
- passage
- swirling
- nozzle
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000005507 spraying Methods 0.000 title abstract description 5
- 239000007921 spray Substances 0.000 claims abstract description 38
- 239000012530 fluid Substances 0.000 claims description 30
- 210000002435 tendon Anatomy 0.000 claims description 17
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 13
- 241001672694 Citrus reticulata Species 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000009527 percussion Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 11
- 238000011010 flushing procedure Methods 0.000 abstract description 3
- 230000013872 defecation Effects 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 5
- 206010010774 Constipation Diseases 0.000 description 2
- 210000000436 anus Anatomy 0.000 description 2
- 208000014617 hemorrhoid Diseases 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Nozzles (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
Abstract
The invention discloses an intelligent closestool and a nozzle device capable of spraying swirling water current of the intelligent closestool. The nozzle device comprises a base and a bottom cover, wherein an inner spray nozzle is arranged on the base and is communicated with an inlet at the tail of the base through a channel at the bottom of the base; a swirling chamber with a conical surface at the top is arranged between the inner spray nozzle and the channel; a conical lug pillar is arranged on the bottom cover corresponding to the center of the bottom of the swirling chamber; the channel comprises a first channel and a second channel; the first channel is tangentially communicated with the swirling chamber along the side wall of the swirling chamber; and the second channel is radially communicated with the swirling chamber along the conical lug pillar. Due to the adoption of the swirling chamber with the lug pillar and two channels, two strands of water current form a swirling water jet with an axial speed, a radial speed and a tangential speed during confluence; the stripped cleaning for stubborn dirt can be finished by using a normal impact force and a tangential stripping force of the swirling jet and the first-time flushing effect after defecation is improved; low water-pressure spin also brings excellent comfort to people; and no small droplet in the swirling water jet splashes so as to prevent other parts of a human body from being wetted.
Description
Technical field
The present invention relates to the toilet field with cleaning function, in particular, what improvement related to is a kind of intelligent closestool and the spray nozzle device that can spray rotary water current thereof.
Background technology
There is the intelligent closestool of cleaning function, the mode of main three kinds of cleaning human bodies can be realized by nozzle disposed thereon: huckle cleaning, soft cleaning and women's cleaning.
Huckle cleaning is exactly that its effect is the stubborn soils rinsed after an action of the bowels in people's function used when first time cleans after an action of the bowels; Existing product on the market adopts the straight water flow jet mode directly gone out to complete huckle cleaning mostly.
The effect of soft cleaning is the residual dirt after cleaning first time cleaning, and the dirt dabbling when cleaning because going to toilet and produce; Existing product on the market mostly adopts and utilizes bubble generator to make water outlet form air-bubble before water inlet, and completes soft cleaning in the straight water flow jet mode directly gone out.
Women cleans the cleaning mainly referring to the particular form adopting spray water stream to carry out for women, and what the present invention mainly improved is huckle cleaning.
Because the huckle cleaning that existing product on the market has, employing be the straight spray regime directly gone out, often need the larger good cleaning performance of hydraulic pressure guarantee; But under the impact of larger hydraulic pressure, people knows from experience the uncomfortable impression of generation; And large the straight of hydraulic pressure directly goes out spray regime, and be not easy to remove stubborn soils; In addition, adopt this cleaning way, also easily make globule granule to splashing sideways, some position that need not clean of human body of easily getting wet thus.
Therefore, prior art still haves much room for improvement and develops.
Summary of the invention
The object of the invention is to, a kind of intelligent closestool is provided and the spray nozzle device of rotary water current can be sprayed, flood straightening can be improved and rush the discomfort brought to people, the cleaning performance that first time after an action of the bowels rinses can be improved simultaneously.
Technical scheme of the present invention is as follows: a kind of spray nozzle device spraying rotary water current, comprise pedestal, bottom and and nozzle cover; Pedestal arranges inner nozzle, nozzle cover is provided with the outer nozzle coaxial with inner nozzle; Inner nozzle is connected with the entrance of pedestal afterbody by the passage of base bottom; Between inner nozzle and passage, swirling chamber is set; Swirling chamber top has the conical surface extending to inner nozzle; On the bottom that swirling chamber bottom centre is corresponding, arrange the taper projection suitable with swirling chamber, wherein: taper projection is cylindric, the top of taper projection is taper seat, and the tapering in taper projection top conical face is less than the tapering in swirling chamber top conical face; Described passage comprises first passage and second channel; First passage is tangentially communicated with swirling chamber along swirling chamber sidewall; Second channel is along taper projection radial communication swirling chamber; Bottom between taper projection and swirling chamber sidewall is arranged a convex tendon; The height of convex tendon is no more than the half of taper projection, and convex tendon is arranged along the line of second channel and taper projection; Convex tendon is connected with taper projection one, and taper projection is between convex tendon and second channel; First passage has the width of gradual change, and the first passage width of swirling chamber side is less than the first passage width of inlet side; Second channel has the width of gradual change, and the second channel width of swirling chamber side is greater than the second channel width of inlet side; The length of first passage exceedes the length of second channel, and the degree of depth of first passage exceedes the degree of depth of second channel; The medial extremity of outer nozzle is provided with and the stepped conical surface of swirling chamber top with taper direction, produce the turning effort of rotating fluid from first passage with the current of the swirling chamber that tangentially becomes a mandarin, strengthen the percussion of rotating fluid from second channel with the current of the swirling chamber that axially becomes a mandarin.
A kind of intelligent closestool, comprise spray nozzle device, described spray nozzle device is as the above-mentioned spray nozzle device spraying rotary water current.
Described intelligent closestool, wherein: inner nozzle and outer nozzle are all obliquely installed.
Described intelligent closestool, wherein: the bore of outer nozzle is 1.5 ~ 2.5 times of inner nozzle bore.
A kind of intelligent closestool provided by the present invention and spray nozzle device of rotary water current can be sprayed, owing to have employed the swirling chamber of taper projection and tangential being communicated with the first passage of this swirling chamber and the second channel of this swirling chamber of radial communication, unique hydrodynamics structure makes two strands of current be formed when crossing not only to have axial velocity and radial velocity but also has the rotating fluid of tangential velocity; Thus when carrying out huckle cleaning, by normal direction impact force and its tangential peeling force of rotating jet, complete and stubborn soils stripping type is cleaned, improve the effect of first time flushing after an action of the bowels, and spinning of little hydraulic pressure also gives splendid comfort, improve flood straightening and rush the discomfort brought to people; By the stimulation of rotating jet to anus, the effect to constipation and/or hemorrhoid patients defaecation can also be reached; In addition, rotating fluid does not almost have droplet to splash yet, some position that need not clean of human body of can not getting wet.
Accompanying drawing explanation
Fig. 1 is longitudinal cross-sectional schematic that the present invention can spray rotary water current spray nozzle device.
Fig. 2 is the tridimensional schematic diagram that the present invention can spray in rotary water current spray nozzle device.
Fig. 3 is the bottom schematic perspective view that the present invention can spray in rotary water current spray nozzle device.
Detailed description of the invention
Below with reference to accompanying drawing, described in detail the specific embodiment of the present invention and embodiment, described specific embodiment only in order to explain the present invention, is not intended to limit the specific embodiment of the present invention.
A kind of spray nozzle device spraying rotary water current of the present invention, one of its detailed description of the invention, as shown in Figure 1, comprises pedestal 110, bottom 120 and nozzle cover 130; Nozzle cover 130 is provided with outer nozzle 133; At pedestal 110 head and the inner nozzle 113 being provided with corresponding outer nozzle 133 in the region that nozzle cover 130 is connected; As shown in Figure 2, the open slot 114 (with 115) being communicated with inner nozzle 113 is respectively arranged with in the bottom of pedestal 130; Open slot 114 (with 115) forms water stream channel under the sealing of bottom 120, is connected respectively with the flow inlet 116 (with 117) being arranged on pedestal 110 afterbody.
Wherein, as shown in Figure 1, between inner nozzle 113 and the open slot 114 (and 115) forming water stream channel, swirling chamber 111 is provided with; Swirling chamber 111 is in cylindric, and its top is provided with the taper seat extending to inner nozzle 113 bottom; Bottom 120 surface corresponding to swirling chamber 111 bottom centre position, is provided with the taper projection 121 suitable with swirling chamber 111 size; As shown in Figure 3, taper projection 121 is also in cylindric, and the top of taper projection 121 is taper seat; As shown in Figure 2, open slot 114 (with 115) bottom pedestal 110 has two, wherein open slot 114 and bottom (120 in Fig. 1) sidewall formed along swirling chamber 111 is tangentially communicated with the first passage of swirling chamber 111, and another open slot 115 and bottom (120 in Fig. 1) form the second channel of the radial communication swirling chamber 111 along taper projection (121 in Fig. 1).
As shown in Figure 1, be assembled to after on pedestal 110 at bottom 120, the taper projection 121 be arranged on bottom 120 is located in swirling chamber 111 bottom center on pedestal 110, and the outer wall of taper projection 121 and the inwall of swirling chamber 111 form the hydrodynamics structure with highly stable rotating force.
When current pour in swirling chamber 111 from first passage, tangentially enter swirling chamber 111 with higher flow velocity, produce the rotating fluid of rotational flow around taper projection 121, and rising enters the conical surface contraction section at swirling chamber 111 top in funnel-form; Meanwhile, another strand of current pour in swirling chamber 111 from second channel, and the taper projection 121 directly impacting swirling chamber 111 center produces the axial flow of fluid upwards flowed; Two strands of current converge in swirling chamber, and outside rotating fluid drives inner axial flow of fluid gradually, form existing axial velocity and radial velocity has again the rotating fluid of tangential velocity to penetrate from inner nozzle 113.
It should be noted that, produce the turning effort of rotating fluid with the current of the swirling chamber 111 that tangentially becomes a mandarin from first passage, strengthen the percussion of rotating fluid from second channel with the current of the swirling chamber 111 that axially becomes a mandarin, solve traditional direction element thus and add the problem that rotating fluid that rotating nozzle produces exists low regime, jet-core region; And the rotating fluid that spray nozzle device of the present invention produces, jet-core region also has stronger impact capacity, and spray nozzle device of the present invention can also regulate spin intensity and the impact dynamics of rotating fluid comparatively easily.In addition, rely on rotating fluid normal direction impact force, too increase a kind of tangential peeling force simultaneously, under less hydraulic pressure, also can reach satisfied huckle cleaning effect.
Can spray in the preferred embodiment of rotary water current spray nozzle device in the present invention, as shown in Figure 1, the external diameter of taper projection 121 can be less than the half of swirling chamber 111 internal diameter, to increase the radial distance bottom swirling chamber 111, can improve the radial flow velocity of rotating fluid thus; And, the tapering in taper projection 121 top conical face is less than the tapering in swirling chamber 111 top conical face, to reduce the axial flow of fluid resistance of taper projection 121, the intensity of rotational flow and axial flow can be strengthened thus, make the jet produced from inner nozzle 113 have larger swirl strength.
Further, as shown in Figure 1, the bore of outer nozzle 133 is 1.5 ~ 2.5 times of inner nozzle 113 bore, is preferably 2 times.Because rotating fluid has larger spin intensity, the change at short notice of its tangential velocity is very little, therefore the diffusion angle of rotating fluid before being outwards injected into human body is very little, and the rotating fluid ejected from inner nozzle 113 thus can directly pass from outer nozzle 133.Because water column diameter is little, unit area rinse capability is strong, and not only cleaning performance is good, and gives people splendid comfort.
Further, as shown in Figure 1, inner nozzle 113 and outer nozzle 133 are all obliquely installed, and the inner nozzle 113 of inclination changes the Plane of rotation of rotating fluid, can strengthen the stripping ability of rotating fluid to stubborn soils thus.
Be preferably, as shown in Figure 2, the open slot 114 forming first passage has the width of gradual change; Open slot 114 width by swirling chamber (in Fig. 1 111) side is less than open slot 114 width by entrance 116 side.This tapering type grooved tangential runner, can improve the flow rate of water flow tangentially entering swirling chamber (in Fig. 1 111), and then improves the spin intensity of rotating fluid.
Be preferably, as shown in Figure 2, the open slot 115 forming second channel also has the width of gradual change; Open slot 115 width by swirling chamber (in Fig. 1 111) side is greater than open slot 115 width by entrance 117 side.This gradually wide formula grooved radial flow path, can increase the water flow entering swirling chamber (in Fig. 1 111), and then improves the axial flow of rotating fluid.
Further, as shown in Figure 2, open slot 114 length forming first passage exceedes open slot 115 length forming second channel, and/or open slot 114 degree of depth forming first passage exceedes open slot 115 degree of depth forming second channel.Longer first passage can relatively be beneficial to current swirling chamber (in Fig. 1 111) is front has higher initial flow rate entering by second channel, and darker first passage current increase to axial can tangentially enter the water flow of swirling chamber (in Fig. 1 111), fully to ensure the rotate effect of rotating fluid.
Further, as shown in Figure 3, the bottom 120 between taper projection 121 and swirling chamber (111 in Fig. 1) sidewall arranges a convex tendon 122; The height of convex tendon 122 is no more than the half of taper projection 121.The effect of convex tendon 122 can increase the axial flow of rotating fluid and tangential flowing.
Be preferably, convex tendon 122 is arranged along the formation open slot (in Fig. 2 115) of second channel with the line of taper projection 121; Convex tendon 122 is connected with taper projection 121 one, and taper projection 121 is arranged between convex tendon 122 and the open slot (Fig. 2 115) forming second channel.The effect of convex tendon 122 can be performed to optimum state thus.
Spray rotary water current spray nozzle device based on above-mentioned, the invention allows for a kind of intelligent closestool, this intelligent closestool comprises spray nozzle device, and described spray nozzle device is the spray nozzle device of such as the sprayed rotary water current described in above-mentioned any one embodiment.
Compared with intelligent closestool of the prior art and spray nozzle device thereof, a kind of intelligent closestool provided by the present invention and spray nozzle device of rotary water current can be sprayed, owing to have employed the swirling chamber of taper projection and tangential being communicated with the first passage of this swirling chamber and the second channel of this swirling chamber of radial communication, unique hydrodynamics structure makes two strands of current be formed when crossing not only to have axial velocity and radial velocity but also has the rotating fluid of tangential velocity; Thus when carrying out huckle cleaning, by normal direction impact force and its tangential peeling force of rotating jet, complete and stubborn soils stripping type is cleaned, improve the effect of first time flushing after an action of the bowels, and spinning of little hydraulic pressure also gives splendid comfort, improve flood straightening and rush the discomfort brought to people; By the stimulation of rotating jet to anus, the effect to constipation and/or hemorrhoid patients defaecation can also be reached; In addition, rotating fluid does not almost have droplet to splash yet, some position that need not clean of human body of can not getting wet.
Should be understood that; the foregoing is only preferred embodiment of the present invention; be not sufficient to limit technical scheme of the present invention; for those of ordinary skills; within the spirit and principles in the present invention; can be increased and decreased according to the above description, replaced, converted or improved, and all these increases and decreases, replacement, conversion or the technical scheme after improving, all should belong to the protection domain of claims of the present invention.
Claims (4)
1. a spray nozzle device for rotary water current be can spray, pedestal, bottom and nozzle cover comprised; Pedestal arranges inner nozzle, nozzle cover is provided with the outer nozzle coaxial with inner nozzle; Inner nozzle is connected with the entrance of pedestal afterbody by the passage of base bottom; Between inner nozzle and passage, swirling chamber is set; Swirling chamber top has the conical surface extending to inner nozzle; On the bottom that swirling chamber bottom centre is corresponding, the taper projection suitable with swirling chamber is set, it is characterized in that: taper projection is cylindric, the top of taper projection is taper seat, and the tapering in taper projection top conical face is less than the tapering in swirling chamber top conical face; Described passage comprises first passage and second channel; First passage is tangentially communicated with swirling chamber along swirling chamber sidewall; Second channel is along taper projection radial communication swirling chamber; Bottom between taper projection and swirling chamber sidewall is arranged a convex tendon; The height of convex tendon is no more than the half of taper projection, and convex tendon is arranged along the line of second channel and taper projection; Convex tendon is connected with taper projection one, and taper projection is between convex tendon and second channel; First passage has the width of gradual change, and the first passage width of swirling chamber side is less than the first passage width of inlet side; Second channel has the width of gradual change, and the second channel width of swirling chamber side is greater than the second channel width of inlet side; The length of first passage exceedes the length of second channel, and the degree of depth of first passage exceedes the degree of depth of second channel; The medial extremity of outer nozzle is provided with and the stepped conical surface of swirling chamber top with taper direction, produce the turning effort of rotating fluid from first passage with the current of the swirling chamber that tangentially becomes a mandarin, strengthen the percussion of rotating fluid from second channel with the current of the swirling chamber that axially becomes a mandarin.
2. an intelligent closestool, comprises spray nozzle device, it is characterized in that: described spray nozzle device is the spray nozzle device that can spray rotary water current as claimed in claim 1.
3. intelligent closestool according to claim 2, is characterized in that: inner nozzle and outer nozzle are all obliquely installed.
4. intelligent closestool according to claim 2, is characterized in that: the bore of outer nozzle is 1.5 ~ 2.5 times of inner nozzle bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110237509.4A CN102359168B (en) | 2011-08-18 | 2011-08-18 | Intelligent closestool and nozzle device capable of spraying swirling water current of intelligent closestool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110237509.4A CN102359168B (en) | 2011-08-18 | 2011-08-18 | Intelligent closestool and nozzle device capable of spraying swirling water current of intelligent closestool |
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| Publication Number | Publication Date |
|---|---|
| CN102359168A CN102359168A (en) | 2012-02-22 |
| CN102359168B true CN102359168B (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110237509.4A Active CN102359168B (en) | 2011-08-18 | 2011-08-18 | Intelligent closestool and nozzle device capable of spraying swirling water current of intelligent closestool |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256869A (en) * | 2015-09-10 | 2016-01-20 | 上海科勒电子科技有限公司 | Nozzle assembly and control method thereof |
| CN106759737B (en) * | 2016-11-29 | 2019-02-22 | 佛山市家家卫浴有限公司 | A kind of jetter and the toilet using it |
| CN109811849A (en) * | 2019-01-04 | 2019-05-28 | 江苏大学 | A nozzle guide device for intelligent toilet |
| CN110005029A (en) * | 2019-04-10 | 2019-07-12 | 江苏大学镇江流体工程装备技术研究院 | A swirling air-mixing water spray device |
| CN113250286A (en) * | 2020-02-13 | 2021-08-13 | 厦门松霖科技股份有限公司 | Intelligent closestool spray pipe and intelligent closestool |
| CN113317979A (en) * | 2021-07-12 | 2021-08-31 | 杨健洁 | Semi-closed hip bath washing unit for gynecological and obstetrical nursing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003239360A (en) * | 2002-02-20 | 2003-08-27 | Toto Ltd | Water discharging device |
| WO2010092911A1 (en) * | 2009-02-12 | 2010-08-19 | Toto株式会社 | Hygiene cleaning device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000043602A1 (en) * | 1999-01-25 | 2000-07-27 | Toto Ltd. | Human body washing device |
| WO2002055795A1 (en) * | 2001-01-05 | 2002-07-18 | Toto Ltd. | Water discharging device |
| KR100939144B1 (en) * | 2002-01-15 | 2010-01-28 | 파나소닉 주식회사 | Sanitary washing device |
| JP3848886B2 (en) * | 2002-02-25 | 2006-11-22 | 東陶機器株式会社 | Water discharge device |
| KR100655594B1 (en) * | 2004-11-09 | 2006-12-08 | 웅진코웨이주식회사 | Bidet cleaning nozzle for variable variables |
| US8381323B2 (en) * | 2009-09-30 | 2013-02-26 | Toto Ltd | Sanitary washing apparatus |
| CN202248184U (en) * | 2011-08-18 | 2012-05-30 | 科思利（苏州）工贸有限公司 | Intelligent toilet and nozzle device capable of jetting swirling water flow of intelligent toilet |
-
2011
- 2011-08-18 CN CN201110237509.4A patent/CN102359168B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003239360A (en) * | 2002-02-20 | 2003-08-27 | Toto Ltd | Water discharging device |
| WO2010092911A1 (en) * | 2009-02-12 | 2010-08-19 | Toto株式会社 | Hygiene cleaning device |
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| CN102359168A (en) | 2012-02-22 |
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Owner name: SUZHOU JIEGAO HENGSHENG SENSOR CO., LTD. Free format text: FORMER NAME: KESILI (SUZHOU) INDUSTRY + TRADE CO., LTD. |
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Address after: Suzhou City, Jiangsu province 215021 gangtian road Suzhou Industrial Park No. 99 Tian Industrial Square No. 17 Building 2 floor Patentee after: Suzhou Czech high Hang Seng sensor Co., Ltd. Address before: No. 8 building, 215021 silver Huilong Jiangsu province Suzhou City Industrial Park Su Hua Road Room 1705 Patentee before: Kesili (Suzhou) Ltd. |
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Address after: Suzhou City, Jiangsu province 215021 gangtian road Suzhou Industrial Park No. 99 Tian Industrial Square No. 17 Building 2 floor Patentee after: Czech Republic Hengsheng (Suzhou) Industry & Trade Co., Ltd. Address before: Suzhou City, Jiangsu province 215021 gangtian road Suzhou Industrial Park No. 99 Tian Industrial Square No. 17 Building 2 floor Patentee before: Suzhou Czech high Hang Seng sensor Co., Ltd. |
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Effective date of registration: 20170726 Address after: 315400 A District, Huang Jia Town Industrial Park, Zhejiang, Yuyao Patentee after: Ningbo Soojee Sanitary Ware Co., Ltd. Address before: Suzhou City, Jiangsu province 215021 gangtian road Suzhou Industrial Park No. 99 Tian Industrial Square No. 17 Building 2 floor Patentee before: Czech Republic Hengsheng (Suzhou) Industry & Trade Co., Ltd. |