CN110523548B - Water outlet nozzle and water spraying device with same - Google Patents
Water outlet nozzle and water spraying device with same Download PDFInfo
- Publication number
- CN110523548B CN110523548B CN201910725968.3A CN201910725968A CN110523548B CN 110523548 B CN110523548 B CN 110523548B CN 201910725968 A CN201910725968 A CN 201910725968A CN 110523548 B CN110523548 B CN 110523548B
- Authority
- CN
- China
- Prior art keywords
- water
- water outlet
- cavity
- spout
- wall
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 254
- 238000005507 spraying Methods 0.000 title claims abstract description 20
- 239000013013 elastic material Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000007921 spray Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/18—Roses; Shower heads
- B05B1/185—Roses; Shower heads characterised by their outlet element; Mounting arrangements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
- B05B15/528—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles by resilient deformation of the nozzle
Abstract
The invention discloses a water outlet nozzle and a water spraying device with the same, wherein the water outlet nozzle comprises a water outlet body with a water outlet cavity, the water outlet body is provided with a water inlet end and a water outlet end which are communicated with the water outlet cavity, a jet flow sheet made of elastic materials is arranged on the water outlet end of the water outlet body, a water outlet hole is arranged on the jet flow sheet, water is sprayed out through the water inlet end, the water outlet cavity and the water outlet hole, and the jet flow sheet is concavely arranged in the direction of the inside of the water outlet cavity so as to form a concave cavity at the outer side of the jet flow sheet. By adopting the scheme, the water outlet nozzle is not easy to be blocked, the water outlet is fine and soft, and the effect is better.
Description
Technical Field
The invention relates to a water outlet nozzle and a water spraying device with the water outlet nozzle.
Background
Water outlets in bathroom water spraying devices or kitchen water spraying devices are varied, for example, water outlets are used to provide massage water, shower water, sheet water, mist water, or trickle water, etc. Wherein, the thin running water is obtained by arranging a thin water outlet on the water outlet nozzle. Most of the existing water outlet nozzles are made of hard materials, because of the relatively small overflow cross section, the thin water outlet is easy to be blocked by scale, the water outlet flow velocity is large, the water outlet is not soft enough, and the skin is stimulated more. In the prior art, a thin water outlet made of soft rubber materials is adopted to solve the problem that the thin water outlet is easy to be blocked by scale, but the problem that water is not soft enough still exists.
Disclosure of Invention
In view of the above, the present invention aims to provide a water outlet nozzle with delicate and soft water outlet and a water spraying device with the water outlet nozzle.
In order to achieve the above object, according to one aspect of the present invention, the technical solution adopted by the present invention is: the utility model provides a water outlet nozzle, includes the play water body that has the water cavity, go out the water body have with go out water cavity be linked together advance water end and play water end, it is equipped with the jet piece of being made by elastic material to go out water body's play water end, be equipped with the apopore on the jet piece, rivers are through advance water end, play water cavity and apopore blowout, the jet piece is toward go out water cavity inside direction is concave establishes in order to form a cavity in the outside of jet piece.
In a preferred or alternative embodiment, the water outlet body is made of an elastic material.
In a preferred or alternative embodiment, the jet has a wall thickness less than the wall thickness of the water outlet chamber.
In a preferred or alternative embodiment, the jet blade is concavely arranged towards the inner direction of the water outlet cavity to form a conical structure, the concave cavity corresponds to a conical concave cavity, and the water outlet hole is arranged on the end part and/or the side wall of the conical structure.
In a preferred or alternative embodiment, the jet blade comprises a recess for forming the cavity and a connecting portion connected between the recess and the water outlet body, the connecting portion forming an everting edge at the outer end of the recess, the water outlet being provided in the middle of the recess and in the connecting portion, respectively.
In a preferred or alternative embodiment, the outer end of the jet blade is connected to the end face of the water outlet end of the water outlet body, or the outer end of the jet blade is connected to the inner wall of the water outlet body at the end face near the water outlet end of the water outlet body.
In a preferred or alternative embodiment, the water outlet body is hollow and cylindrical, the water outlet cavity is a cylindrical cavity, a flow guiding member is further arranged at the water inlet end of the water outlet body, and water flows into the water outlet cavity in a rotating manner through the flow guiding member and flows in the water outlet cavity along the inner wall of the water outlet cavity in a rotating manner.
In a preferred or alternative embodiment, the flow guiding piece comprises a plurality of flow guiding blocks arranged on the end face of the water inlet end of the water outlet body, the flow guiding blocks are arranged at intervals along the circumference, a first overflow gap is arranged between two adjacent flow guiding blocks, and water flows through the first overflow gap to enter the water outlet cavity along the tangential direction of the circumferential wall of the water outlet cavity.
In a preferred or alternative embodiment, the flow guiding member further includes a flow guiding column, the flow guiding column is sleeved in the water inlet end of the water outlet body, a second overflow gap is formed between the outer wall of the flow guiding column and the inner wall of the water inlet end of the water outlet body, and water flows through the first overflow gap, flows into the second overflow gap and is ejected from the water outlet hole on the jet sheet through the water outlet cavity.
According to another aspect of the present invention, there is provided a water spraying device, including a water spraying panel, wherein a water outlet nozzle mounting hole is provided on the water spraying panel, and further including the water outlet nozzle according to any one of the above, and the water outlet nozzle is mounted on the water outlet nozzle mounting hole.
The beneficial effects of the invention are as follows:
1. the jet flow sheet is made of elastic materials, and is concavely arranged in the direction of the inner side of the water outlet cavity to form a concave cavity at the outer side of the jet flow sheet, so that on one hand, when the water outlet hole is blocked by scale, the jet flow sheet is pulled and deformed under the action of water pressure to enlarge the aperture of the water outlet hole, scale and the like can be smoothly washed away, and the problem of blocking the water outlet hole is solved; on the other hand, the concave cavity can form negative pressure when the water outlet nozzle discharges water, so that air around the water outlet nozzle is sucked into the concave cavity to be mixed with the water outlet water flow, and the water outlet is softer, full and dense.
2. The water outlet body is made of elastic materials, and can be elastically deformed under the action of water pressure, so that the problem of blockage of scale can be further avoided.
3. The wall thickness of the jet flow sheet is smaller than that of the water outlet cavity, the wall thickness of the water outlet cavity is large, excessive deformation of the water outlet cavity can be prevented, the jet flow sheet is excessively pulled, and further the water outlet hole is excessively pulled to be damaged, and the wall thickness of the jet flow sheet is small, so that the water outlet hole is easily deformed, and scale is smoothly washed away.
4. The jet blade is concavely arranged to form a cone-like structure, so that the deformation space is larger, and the deformation of the jet blade is facilitated.
5. The water inlet end of the water outlet body is also provided with a flow guide piece, water flows into the water outlet cavity in a rotating mode through the flow guide piece and flows in the water outlet cavity along the inner wall of the water outlet cavity in a rotating mode, and the water flow flowing in a rotating mode can enable scales in water to collide with each other or the inner wall of the water outlet cavity to be broken up, so that the scales can be washed away smoothly.
6. The water flow guide piece also comprises a water flow guide column, the water flow guide column is sleeved in the water inlet end of the water outlet body, and under the action of the water flow guide column, the water flow can keep higher flow speed, so that the acting force on the scale is increased, and the scale removal effect is better.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a front view of a water spray panel of a shower head according to an embodiment of the present invention;
FIG. 2 is a bottom view of a water spraying panel of a sprinkler according to an embodiment of the present invention;
FIG. 3 is an exploded view of a water spray panel of a sprinkler according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 2;
FIG. 5 is an enlarged view of B in FIG. 4;
FIG. 6 is a schematic view of a water outlet according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view taken along the direction C-C in FIG. 6;
fig. 8 is a cross-sectional view of a water outlet nozzle according to another embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear and obvious, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 4, fig. 1 to 4 show a shower head 100 as a water spraying device, which comprises a water spraying panel 110 and a plurality of water nozzles 120, wherein the water spraying panel 110 is provided with water nozzle mounting holes 111 corresponding to the water nozzles 120, and the water nozzles 120 are mounted on the water nozzle mounting holes 111. The water spraying device of the present embodiment is described by taking the shower head 100 as an example, and of course, the water spraying device of the present invention is not limited to the shower head, and may be a spray gun, a faucet, or the like.
Referring to fig. 4 to 7, a water outlet nozzle 120 according to an embodiment of the present invention includes a water outlet body 10 having a water outlet cavity 13, wherein the water outlet body 10 has a water inlet end 11 and a water outlet end 12 communicating with the water outlet cavity 13. The water outlet end 12 of the water outlet body 10 is provided with a jet piece 20 made of elastic materials, the jet piece 20 is provided with a water outlet 21, water is sprayed out through the water inlet end 11, the water outlet cavity 13 and the water outlet 21, and the jet piece 20 is concavely arranged towards the inner direction of the water outlet cavity 13 to form a concave cavity 30 at the outer side of the jet piece 20. On the one hand, when the water outlet is blocked by the scale, under the action of water pressure, the jet piece 20 is pulled and deformed to enlarge the aperture of the water outlet 21, so that the scale and the like can be smoothly washed away, and the problem of blocking the water outlet is solved; on the other hand, referring to fig. 7, the cavity 30 can form a negative pressure when the water outlet nozzle 120 is discharging water, so that the air around the water outlet nozzle 120 is sucked into the cavity 30 to be mixed with the water outlet water flow, and the water outlet is softer, full and dense.
In this embodiment, the water outlet body 10 is also made of an elastic material, and the water outlet body 10 itself can elastically deform under the action of water pressure, so as to further avoid the problem of scale blockage. And preferably, the wall thickness of spout 20 is less than the wall thickness of outlet chamber 13. The wall thickness of the jet piece 20 is smaller than that of the water outlet cavity 13, the wall thickness of the water outlet cavity 13 is larger, so that excessive deformation of the water outlet cavity 13 can be prevented, the jet piece 20 is excessively pulled, the water outlet hole 21 is excessively pulled to be damaged, and the wall thickness of the jet piece 20 is smaller, so that the water outlet hole 21 is easily deformed, and scales are smoothly washed away.
In the present embodiment, the spout 20 includes the recess 22 for forming the cavity 30 and the connecting portion 23 connected between the recess 22 and the water outlet body 10, the connecting portion 23 forming the everting edge of the outer end of the recess 22, the recess 22 having a type tapered structure, so that the deformation space is large, contributing to the deformation of the spout. A plurality of water outlet holes 21 are respectively arranged in the middle of the concave part 22 and the connecting part 23.
In this embodiment, the outer end of the jet 20 is connected at the end face of the water outlet end 12 of the water outlet body 10. Alternatively, the outer end of the jet blade 20 may be connected to the inner wall of the water outlet body 10 at an end surface near the water outlet end 12 of the water outlet body 10.
Referring to fig. 5, 6 and 7, in the present embodiment, the water outlet body 10 is hollow and cylindrical, the water outlet cavity 13 is a cylindrical cavity, the water inlet end 11 of the water outlet body 10 is further provided with a flow guiding member 40, and water flows into the water outlet cavity 13 in a rotating manner through the flow guiding member 40 and flows in the water outlet cavity 13 along the inner wall of the water outlet cavity 13. The water flow of the rotary flow can cause the scale in the water to collide with each other or the inner wall of the water outlet cavity 13 to be broken up, so that the scale can be smoothly washed away.
Referring to fig. 5, 6 and 7, specifically, the guide member 40 includes a plurality of guide blocks 41 disposed on the end surface of the water inlet end 11 of the water outlet body 10, and a guide post 42 sleeved in the water inlet end 11 of the water outlet body 10. The diversion blocks 41 are arranged at intervals along the circumference, a first overflow gap S1 is arranged between two adjacent diversion blocks 41, and water flows through the first overflow gap S1 and enters the water outlet cavity 13 along the tangential direction of the circumferential wall of the water outlet cavity 13. The second overflow gap S2 is formed between the outer wall of the guide post 42 and the inner wall of the water inlet end 11 of the water outlet body 10, so that the water flow can keep a higher flow velocity, the acting force on the scale is increased, and the scale removing effect is better. The water flows through the first through-flow gap S1, flows to the second through-flow gap S2, and is ejected from the water outlet hole 21 in the jet blade 20 through the water outlet chamber 13.
Referring to fig. 8, a water outlet 120 according to another embodiment of the present invention is different from the above-described embodiment in that the jet blade 20 of the present embodiment is provided with only the recess 22 and no connection portion 23. Specifically, the jet blade 20 is concavely arranged in the direction of the inner part of the water outlet cavity 13 to form a conical structure, the concave cavity 30 corresponds to the conical concave cavity 30, and the water outlet hole 21 is arranged at the end part and/or the side wall of the conical structure.
While the foregoing description illustrates and describes the preferred embodiments of the present invention, as noted above, it is to be understood that the invention is not limited to the forms disclosed herein but is not to be construed as excluding other embodiments, and that various other combinations, modifications and environments are possible and may be made within the scope of the inventive concepts described herein, either by way of the foregoing teachings or by those of skill or knowledge of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (10)
1. The utility model provides a water outlet nozzle, includes the play water body that has the water cavity, the play water body have with water inlet and the play water end that the water cavity is linked together, be equipped with the jet piece of being made by elastic material on the water outlet of play water body, be equipped with the apopore on the jet piece, rivers are through water inlet, water cavity and apopore blowout, its characterized in that, the jet piece is toward water cavity inside direction is concave establishes in order to form a cavity in the outside of jet piece when the apopore is blocked by the incrustation scale, receive the effect of water pressure, the jet piece can be pulled the deformation so that the aperture grow of apopore, the cavity can form the negative pressure when play water nozzle goes out, thereby makes the air around the play water nozzle absorbed to cavity mixes with play water flow.
2. The spout of claim 1 wherein the outlet body is made of an elastic material.
3. The spout of claim 2 wherein the thickness of the wall of the spout is less than the thickness of the wall of the water outlet chamber.
4. The water outlet nozzle according to claim 1, wherein the jet blade is concavely arranged in the direction of the inner part of the water outlet cavity to form a conical-like structure, the concave cavity is a conical-like concave cavity correspondingly, and the water outlet hole is arranged on the end part and/or the side wall of the conical-like structure.
5. The spout of claim 1 wherein the jet piece comprises a recess for forming the cavity and a connecting portion connected between the recess and the spout body, the connecting portion forming an everting edge at an outer end of the recess, the spout being provided with the spout in a middle of the recess and the connecting portion, respectively.
6. The spout of claim 1 wherein the outer end of the spout is attached to the inner wall of the spout at an end face of the spout that is adjacent the outlet end of the spout.
7. The water outlet nozzle according to claim 1, wherein the water outlet body is hollow and cylindrical, the water outlet cavity is a cylindrical cavity, a flow guiding member is further arranged at the water inlet end of the water outlet body, and water flows into the water outlet cavity in a rotating manner through the flow guiding member and flows in the water outlet cavity along the inner wall of the water outlet cavity in a rotating manner.
8. The spout of claim 7 wherein the deflector comprises a plurality of deflector blocks disposed on an end face of the water inlet end of the spout body, the deflector blocks being disposed circumferentially spaced apart with a first flow gap between adjacent two of the deflector blocks through which water flows into the spout chamber in a tangential direction of the peripheral wall of the spout chamber.
9. The spout of claim 8 wherein the deflector further comprises a deflector post disposed within the inlet end of the spout body, wherein a second flow gap is defined between the outer wall of the deflector post and the inner wall of the spout body at the inlet end, and wherein water flows through the first flow gap and then flows into the second flow gap to be ejected from the outlet opening of the spout via the outlet chamber.
10. A water spraying device comprising a water spraying panel, wherein a water outlet nozzle mounting hole is formed in the water spraying panel, and the water spraying device is characterized by further comprising the water outlet nozzle according to any one of claims 1 to 9, and the water outlet nozzle is mounted on the water outlet nozzle mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910725968.3A CN110523548B (en) | 2019-08-07 | 2019-08-07 | Water outlet nozzle and water spraying device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910725968.3A CN110523548B (en) | 2019-08-07 | 2019-08-07 | Water outlet nozzle and water spraying device with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110523548A CN110523548A (en) | 2019-12-03 |
| CN110523548B true CN110523548B (en) | 2023-12-26 |
Family
ID=68661608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910725968.3A Active CN110523548B (en) | 2019-08-07 | 2019-08-07 | Water outlet nozzle and water spraying device with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110523548B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112657692B (en) * | 2021-01-08 | 2022-08-12 | 厦门欧圣斯卫浴有限公司 | Water outlet device for water flow power-assisted switching |
| DE102021205915A1 (en) * | 2021-06-10 | 2022-12-15 | Hansgrohe Se | Pot-shaped shower jet outlet nozzle and shower |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03253627A (en) * | 1990-03-02 | 1991-11-12 | Toto Ltd | Spray-foam switching drain port |
| CN2743657Y (en) * | 2004-11-18 | 2005-11-30 | 陈桂英 | Fast water pipe adaptor packaging water gun |
| CN106216116A (en) * | 2016-09-14 | 2016-12-14 | 司徒文芳 | A kind of connection assembly of showerhead |
| CN106311540A (en) * | 2015-06-19 | 2017-01-11 | 梁北洪 | Shower head connector |
| CN210357618U (en) * | 2019-08-07 | 2020-04-21 | 厦门欧圣斯科技有限公司 | Self-cleaning water outlet nozzle and water spraying device with same |
| CN210357617U (en) * | 2019-08-07 | 2020-04-21 | 厦门欧圣斯科技有限公司 | Water outlet nozzle and water spraying device with same |
-
2019
- 2019-08-07 CN CN201910725968.3A patent/CN110523548B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03253627A (en) * | 1990-03-02 | 1991-11-12 | Toto Ltd | Spray-foam switching drain port |
| CN2743657Y (en) * | 2004-11-18 | 2005-11-30 | 陈桂英 | Fast water pipe adaptor packaging water gun |
| CN106311540A (en) * | 2015-06-19 | 2017-01-11 | 梁北洪 | Shower head connector |
| CN106216116A (en) * | 2016-09-14 | 2016-12-14 | 司徒文芳 | A kind of connection assembly of showerhead |
| CN210357618U (en) * | 2019-08-07 | 2020-04-21 | 厦门欧圣斯科技有限公司 | Self-cleaning water outlet nozzle and water spraying device with same |
| CN210357617U (en) * | 2019-08-07 | 2020-04-21 | 厦门欧圣斯科技有限公司 | Water outlet nozzle and water spraying device with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110523548A (en) | 2019-12-03 |
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Effective date of registration: 20201021 Address after: 361000 office building, No. 177, Erhuan South Road, industrial concentration zone, Tong'an District, Xiamen City, Fujian Province Applicant after: Xiamen aoshengsi Sanitary Ware Co.,Ltd. Address before: 361000 South Zone, No. 177, south 2nd Ring Road, industrial zone, Xiamen, Fujian Applicant before: XIAMEN OSHINCE SANITARY DEVELOPMENT Co.,Ltd. |
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