CN102777648B - Flow limiting shutoff valve - Google Patents
Flow limiting shutoff valve Download PDFInfo
- Publication number
- CN102777648B CN102777648B CN201210199191.XA CN201210199191A CN102777648B CN 102777648 B CN102777648 B CN 102777648B CN 201210199191 A CN201210199191 A CN 201210199191A CN 102777648 B CN102777648 B CN 102777648B
- Authority
- CN
- China
- Prior art keywords
- piston
- flow
- valve
- cavity
- water
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 95
- 238000007789 sealing Methods 0.000 claims abstract description 64
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 230000006378 damage Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Fluid-Driven Valves (AREA)
- Safety Valves (AREA)
Abstract
本发明涉及一种流量限制截流阀，包括流量截止阀和截断阀。所述流量截止阀包括阀体、活塞和偏压部件。所述阀体上成型有通腔，所述通腔的出水口设有密封座；所述活塞可轴向往返移动地设置在所述通腔内，所述活塞的相应外壁、所述通腔的内壁以及所述密封座之间配合形成一中间腔，所述活塞上成型有预设通流面积的导流通孔，所述中间腔通过所述导流通孔与所述进水口连通。所述活塞的朝向所述密封座的一端设有密封件，在所述进水口的流量小于预设值时，所述密封件与所述密封座分离；在所述进水口的流量大于预设值时，所述活塞上的所述密封件与所述密封座接触密封；当所述截断阀关闭时，可以实现所述活塞的自动复位。
The invention relates to a flow limiting cut-off valve, which includes a flow cut-off valve and a cut-off valve. The flow shutoff valve includes a valve body, a piston and a biasing member. A through cavity is formed on the valve body, and the water outlet of the through cavity is provided with a sealing seat; the piston is arranged in the through cavity in an axially reciprocating manner, and the corresponding outer wall of the piston, the through cavity The inner wall of the piston and the sealing seat cooperate to form an intermediate cavity, and a diversion hole with a preset flow area is formed on the piston, and the intermediate cavity communicates with the water inlet through the diversion hole. One end of the piston facing the seal seat is provided with a seal, and when the flow rate of the water inlet is less than a preset value, the seal is separated from the seal seat; the flow rate of the water inlet is greater than a preset value. When the value is high, the sealing member on the piston is in contact with the sealing seat for sealing; when the shut-off valve is closed, the automatic reset of the piston can be realized.
Description
Technical field
The present invention relates to a kind of valve means, be specifically related to a kind of flow restriction shutoff valve.
Background technique
Day by day in short supply along with socio-economic development and the energy, especially, in water resources serious deficient today, maximization, judicial convenience and the safe of people to water resources utilization had higher requirement.In actual daily life, water pipe, because of long-term frequent use, easily there is sudden damage in the first-class equipment of fire hose place, usually cause large strand of current to outflow continuously and cause the waste of water resources, in prior art, for water pipe, the sudden damage of the first-class equipment of the fire hose, by total lock of manually closing on water pipe, make up often, and close owing to finding that water tap damages the reaction time that total lock need to be certain, particularly, when when accident occurs, nobody controls at the scene, not only easily cause the significant wastage of water resources but also can not have due to the water logging of overflowing the floor of family, the articles for use such as furniture, and cause property loss to a certain degree to user, situation is serious, even also can overflow feed through to resident family around, consequence will be more serious.
Chinese patent literature CN2937705Y discloses a kind of excess-flow valve, it comprises a shell, and the water outlet arranging on shell and water inlet, between described water outlet and water inlet, be provided with excess-flow structure, this excess-flow structure comprises: a connecting rod, can form displacement along a passage, and be connected with a closeouts, this closeouts is arranged in a shutoff chamber, in company with the displacement of described connecting rod can shutoff described in flow channel between water outlet and water inlet; One elastic component, is arranged between described connecting rod and described shell, for when lower than predetermined hydraulic pressure, supports described connecting rod automatically in making described closeouts keep the position that described flow channel is unimpeded.This excess-flow valve is provided with only complex structure between described connecting rod and described shell, can be hydraulic pressure be excessive while causing reduction valve damaged, block and keep sealed condition, preventing from directly flowing to terminal equipment and causing the destruction to terminal equipment without the current of decompression, therefore, the object that this excess-flow valve is set is in the situation that hydraulic pressure is excessive, automatically to block current, but after stopping, due to the only effect of complex structure, closeouts cannot automatically reset, therefore, use is very inconvenient.
Summary of the invention
In order to solve water-stop valve of the prior art, after cutout, closeouts cannot automatically reset technical problem occurring, the invention provides a kind of can automatically reset flow restriction throttle valve after stopping.
The technological scheme of flow restriction shutoff valve of the present invention is:
A kind of flow restriction shutoff valve, comprises when a water inlet water flow is greater than predefined value, can automatically block the flow stop valve of current, described flow stop valve comprises
Valve body, forms cavity on described valve body, and described cavity comprises water intake and water outlet, and the water outlet of described cavity is provided with sealing seat;
Piston, described piston can axially come and go and be arranged on movably in described cavity, and between the water intake in described cavity and described water outlet, between the respective external wall of described piston, the inwall of described cavity and described sealing seat, coordinate and form an intermediate cavity, on described piston, form the water conservancy diversion through hole of default flow area, described intermediate cavity is communicated with described water intake by described water conservancy diversion through hole.One end towards described sealing seat of described piston is provided with Sealing, when the flow of described water intake is less than predefined value, described Sealing is separation with described sealing seat, and described intermediate cavity communicates with described water outlet by the gap forming between described Sealing and described sealing seat; When the flow of described water intake is greater than predefined value, described piston moves towards described sealing seat direction under the promotion of hydraulic coupling, until the described Sealing on described piston contacts sealing with described sealing seat, blocks current;
Biasing member, described biasing member is arranged between described piston one end and described sealing seat near described cavity water intake;
Also comprise a block valve, the water outlet of described block valve is communicated with the water intake of described flow stop valve, when described block valve is closed, the reposition force sum of ambient pressure and described biasing member is greater than the hydraulic coupling between described block valve water outlet and described flow stop valve water intake, realizes the reset of described piston.
Above-mentioned flow restriction shutoff valve, on the surface that described Sealing contacts with described sealing seat, two have at least one to be provided with projection or recessed pattern or decorative pattern.
Above-mentioned flow restriction shutoff valve, the water outlet of described flow stop valve is provided with the adapter component of a hollow, one end that described sealing seat inserts described water outlet by described adapter component forms, and described flow stop valve is connected with extraneous pipeline by described adapter component.
Above-mentioned flow restriction shutoff valve, described piston comprises head and the less afterbody of diameter that diameter is larger, described head is applicable to sliding along described cavity inwall, and on described head, forms the throttling through hole of default flow area; On described afterbody, be provided with Sealing.
Above-mentioned flow restriction shutoff valve, is also provided with one end and stretches into the guide rod in described adapter component 6 on the end face of the described afterbody of described piston.
Above-mentioned flow restriction shutoff valve, described adapter component inserts on one end end face in described cavity and also forms annular groove, and described biasing member is that one end is set in described piston tail, and the other end is arranged on the spring in described groove.
Above-mentioned flow restriction shutoff valve, described block valve is ball valve.
Technique scheme of the present invention has the following advantages compared to existing technology:
Flow restriction shutoff valve provided by the invention not only can be realized when normal use, allow current freely pass through, can also realize simultaneously when water pipe or the sudden damage of water tap place generation, can automatically block current, the more important thing is that flow stop valve can automatically reset, only need to close block valve, when flow stop valve is when the state of blocking becomes opening state, just can make the piston in flow stop valve automatically reset under the effect of spring and ambient pressure, very easy to use.
Accompanying drawing explanation
In order to make content of the present invention more be convenient to understand, below in conjunction with the drawings and specific embodiments, content of the present invention is further elaborated.Wherein the piston in Fig. 1 to Fig. 5 has larger head and less afterbody, and water conservancy diversion through hole, on the head of described piston, is not with flex point.
Fig. 1 is flow restriction shutoff valve embodiment's 1 of the present invention erection drawing.
Fig. 2 is the circulation schematic diagram of flow restriction shutoff valve embodiment 1 of the present invention water when flow does not exceed predefined value.
Fig. 3 is the partial enlarged drawing of flow restriction shutoff valve embodiment 1 of the present invention circulation schematic diagram of water when flow does not exceed predefined value.
Fig. 4 is flow restriction shutoff valve embodiment 1 of the present invention exceedes predefined value sealing schematic diagram at flow.
Fig. 5 is flow restriction shutoff valve embodiment 1 of the present invention exceedes the sealing schematic diagram of predefined value partial enlarged drawing at flow.
Fig. 6 is the circulation schematic diagram of flow restriction shutoff valve embodiment 2 of the present invention water when flow does not exceed predefined value.
Reference character is: 1-ball valve, 2-valve body, 3-piston, 4-Sealing, 5-spring, 6-adapter component, 7-(valve body) water intake, 8-(valve body) water outlet, 9-water conservancy diversion through hole, 10-guide rod, 11-groove, 12-(ball valve) water outlet, 13-intermediate cavity.
Embodiment
As shown in Figure 1, a kind of flow restriction shutoff valve of the present embodiment, comprises when a water inlet water flow is greater than predefined value, can automatically block flow stop valve and a ball valve 1 of current.
Described flow stop valve comprises valve body 2, piston 3 and spring 5, on described valve body, forms cavity, and described cavity comprises water intake 7 and water outlet 8, and the water outlet 8 of described cavity is provided with sealing seat; Described piston 3 can axially come and go and be arranged on movably in described cavity, and between the water intake in described cavity 7 and described water outlet 8, between the respective external wall of described piston 3, the inwall of described cavity and described sealing seat, coordinate and form an intermediate cavity 13, described piston 3 comprises head and the less afterbody of diameter that diameter is larger, described head is applicable to sliding along described cavity inwall, and the water conservancy diversion through hole 9 that forms default flow area on described head, described intermediate cavity 13 is communicated with described water intake 7 by described water conservancy diversion through hole 9; On the end face of described afterbody, be also provided with one end and stretch into the guide rod 10 in described adapter component 6, the afterbody of described piston 3 is provided with Sealing 4, on the surface that described Sealing is used for contacting with described sealing seat, is provided with protruding decorative pattern; Described spring 5 is arranged between the described head and described sealing seat of described piston 3, and one end is set in described piston 3 afterbodys, and the other end is arranged in the annular groove 11 that described adapter component 6 inserts on one end end face in described valve body cavity and form.
When flow does not exceed predefined value, as shown in Figures 2 and 3, described Sealing 4 is separation with described sealing seat, and described intermediate cavity 13 communicates with described water outlet by the gap forming between described Sealing 4 and described sealing seat.Water flows into the water intake of valve body 2 by ball valve 1, then impact piston 3 main along the water conservancy diversion through hole 9 on piston 3 and rear valve body 2 water outlets that flow into of intermediate cavity 13 outflows, by the flow channel of adapter component 6, flow out again, now spring 5 plays the effect that props up piston 3, the Sealing 4 that prevents motion together with piston 3 contacts with adapter component 6, and then water is circulated smoothly.
In the above-described embodiment, as selectable mode of execution, can make seal surface keep smooth, and projection or recessed decorative pattern or pattern are set on the surface that is used for contacting with described Sealing at described sealing seat; Projection or recessed decorative pattern or pattern also can be set on the surface of contact of the surface of contact of sealing seat and sealing seat simultaneously.
When water pipe or the sudden damage of water tap place generation, flow by ball valve 1 and flow stop valve can increase suddenly, when the flow passing through exceedes predefined value, as shown in Figure 4 and Figure 5, because the flow area of the water conservancy diversion through hole 9 on piston 3 is limited, be that the flow that in the unit time, permission is passed through is conditional, therefore, the large quantity of fluid not having enough time to pass through in water inlet will overcome the elastic force of spring 5, promoting piston 3 moves toward sealing seat direction, until the described Sealing 4 on described piston 3 contacts sealing with described sealing seat, and then block current.
At flow, exceed predefined value and after current are truncated, close ball valve 1, now at the original hydraulic pressure of valve body 2 inner maintenance, when the reposition force sum of ambient pressure and spring 5 is greater than the hydraulic coupling between described block valve water outlet 12 and described flow stop valve water intake 7, piston is pushed towards moving away from the direction of sealing seat, thereby cause Sealing 4 separation with sealing seat and realize the reset of piston, flow stop valve is opened.Now, can change damaged water pipe or water tap, after more finishing changing, open ball valve 1, flow restriction shutoff valve of the present invention can normally use again, very convenient.
As selectable mode of execution, described piston 3 can also be arranged to the identical cylinder-like structure of diameter of head and afterbody, and meanwhile, water conservancy diversion through hole 9 can be set to flex point, as shown in Figure 6.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all mode of executions, and the apparent variation of being extended out thus or variation are still among protection scope of the present invention.
Claims (6)
1. a flow restriction shutoff valve, is characterized in that, comprises when a water inlet water flow is greater than predefined value, and can automatically block the flow stop valve of current, described flow stop valve comprises
Valve body (2), forms cavity on described valve body, and described cavity comprises water intake (7) and water outlet, and the water outlet (8) of described cavity is provided with sealing seat;
Piston (3), described piston (3) can axially come and go and be arranged on movably in described cavity, and between the water intake in described cavity (7) and described water outlet (8), the respective external wall of described piston (3), between the inwall of described cavity and described sealing seat, coordinate and form an intermediate cavity (13), on described piston (3), form the water conservancy diversion through hole (9) of default flow area, described intermediate cavity (13) is communicated with described water intake (7) by described water conservancy diversion through hole (9), one end towards described sealing seat of described piston (3) is provided with Sealing (4), when the flow of described water intake (7) is less than predefined value, described Sealing (4) is separation with described sealing seat, described intermediate cavity (13) communicates with described water outlet by the gap forming between described Sealing (4) and described sealing seat, when the flow of described water intake (7) is greater than predefined value, described piston (3) moves towards described sealing seat direction under the promotion of hydraulic coupling, until the described Sealing (4) on described piston contacts sealing with described sealing seat, blocks current,
Biasing member, described biasing member is arranged on described piston (3) near between one end and described sealing seat of described cavity water intake (7);
Also comprise a block valve, the water outlet (12) of described block valve is communicated with the water intake (7) of described flow stop valve, when described block valve is closed, the reposition force sum of ambient pressure and described biasing member is greater than the hydraulic coupling between described block valve water outlet (12) and described flow stop valve water intake (7), realize the reset of described piston (3), on the surface that described Sealing contacts with described sealing seat, two have at least one to be provided with projection or recessed pattern or decorative pattern.
2. flow restriction shutoff valve according to claim 1, it is characterized in that, the water outlet (8) of described flow stop valve locates to be provided with the adapter component (6) of a hollow, one end that described sealing seat inserts described water outlet (8) by described adapter component (6) forms, and described flow stop valve is connected with extraneous pipeline by described adapter component (6).
3. flow restriction shutoff valve according to claim 2, it is characterized in that, described piston (3) comprises head and the less afterbody of diameter that diameter is larger, and described head is applicable to sliding along described cavity inwall, and described water conservancy diversion through hole (9) is molded over the head of described piston; Described Sealing (4) is arranged on described afterbody.
4. flow restriction shutoff valve according to claim 3, is characterized in that, is also provided with one end and stretches into the guide rod (10) in described adapter component (6) on the end face of the described afterbody of described piston (3).
5. flow restriction shutoff valve according to claim 4, it is characterized in that, described adapter component (6) inserts and on one end end face in described cavity, also forms annular groove (11), described biasing member is that one end is set in described piston (3) afterbody, and the other end is arranged on the spring (5) in described groove (11).
6. flow restriction shutoff valve according to claim 1, is characterized in that, described block valve is ball valve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210199191.XA CN102777648B (en) | 2012-06-14 | 2012-06-14 | Flow limiting shutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210199191.XA CN102777648B (en) | 2012-06-14 | 2012-06-14 | Flow limiting shutoff valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102777648A CN102777648A (en) | 2012-11-14 |
| CN102777648B true CN102777648B (en) | 2014-04-16 |
Family
ID=47122679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210199191.XA Active CN102777648B (en) | 2012-06-14 | 2012-06-14 | Flow limiting shutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102777648B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322256B (en) * | 2013-06-28 | 2016-06-29 | 珠海爱迪生智能家居股份有限公司 | A kind of stabilization flow restriction shutoff valve |
| CN103511696B (en) * | 2013-09-23 | 2016-07-13 | 北京航天动力研究所 | A kind of excess flow valve that can realize automatically reseting with zero leakage |
| CN112228600B (en) * | 2020-11-10 | 2024-06-21 | 瑞立集团瑞安汽车零部件有限公司 | Fluid low pressure release device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5076321A (en) * | 1991-01-07 | 1991-12-31 | Terry Paul E | Flow sensitive fluid shutoff safety device |
| CN1131248A (en) * | 1994-08-24 | 1996-09-18 | 纽普罗公司 | Excess flow valve |
| CN2833289Y (en) * | 2005-07-02 | 2006-11-01 | 吴正平 | Explosion-proof safety valve for pipeline |
| CN2926694Y (en) * | 2006-08-10 | 2007-07-25 | 佛山安德里茨技术有限公司 | Sealer for pressure container material transferring gate |
| CN101225898A (en) * | 2007-01-18 | 2008-07-23 | 闫守儒 | Leakage-proof valve |
| CN202048217U (en) * | 2011-05-05 | 2011-11-23 | 珠海爱迪生节能科技有限公司 | Water release valve |
| CN202118319U (en) * | 2011-06-28 | 2012-01-18 | 寇国 | Air valve type valve core of safety valve |
| CN202708245U (en) * | 2012-06-14 | 2013-01-30 | 珠海爱迪生节能科技有限公司 | Flow limit shutoff valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2739150B2 (en) * | 1994-08-19 | 1998-04-08 | エヌテーシー工業株式会社 | Telescopic stopcock |
| US7111638B2 (en) * | 2003-05-06 | 2006-09-26 | Safety Flow Company, Llc | Excess flow shutoff |
-
2012
- 2012-06-14 CN CN201210199191.XA patent/CN102777648B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5076321A (en) * | 1991-01-07 | 1991-12-31 | Terry Paul E | Flow sensitive fluid shutoff safety device |
| CN1131248A (en) * | 1994-08-24 | 1996-09-18 | 纽普罗公司 | Excess flow valve |
| CN2833289Y (en) * | 2005-07-02 | 2006-11-01 | 吴正平 | Explosion-proof safety valve for pipeline |
| CN2926694Y (en) * | 2006-08-10 | 2007-07-25 | 佛山安德里茨技术有限公司 | Sealer for pressure container material transferring gate |
| CN101225898A (en) * | 2007-01-18 | 2008-07-23 | 闫守儒 | Leakage-proof valve |
| CN202048217U (en) * | 2011-05-05 | 2011-11-23 | 珠海爱迪生节能科技有限公司 | Water release valve |
| CN202118319U (en) * | 2011-06-28 | 2012-01-18 | 寇国 | Air valve type valve core of safety valve |
| CN202708245U (en) * | 2012-06-14 | 2013-01-30 | 珠海爱迪生节能科技有限公司 | Flow limit shutoff valve |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-60713A 1996.03.05 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102777648A (en) | 2012-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103322256B (en) | A kind of stabilization flow restriction shutoff valve | |
| US9097352B2 (en) | Relief valve for overload protection | |
| US9081390B2 (en) | Back pressure valve | |
| CN104265716B (en) | A kind of super-pressure pilot operated compound relief valve | |
| CN102777648B (en) | Flow limiting shutoff valve | |
| CN103542647B (en) | A kind of Bidirectional throttling electronic expansion valve | |
| MX2008008586A (en) | Control valve with integrated insert providing valve seat and plug guides. | |
| CN103291983A (en) | Safety valve and hydraulic support with same | |
| CN202708245U (en) | Flow limit shutoff valve | |
| CN204739263U (en) | A New Type of Washing Machine Faucet | |
| CN203131130U (en) | Check valve | |
| CN102587093A (en) | Hydraulic buffering device and washing machine having the same | |
| CN203309243U (en) | Valve excessive pressure prevention device | |
| CN105597969B (en) | A kind of water channel switching structure of shower and the water channel switching structure of top spray | |
| CN105805365A (en) | Pressure reduction type backflow preventing device | |
| CN205436109U (en) | Water route of gondola water faucet is switched structure and is switched structure with water route that spout on top | |
| CN109330438B (en) | Water diversion shower system | |
| CN107314141B (en) | Straight-through valve and method for controlling water pressure by same | |
| CN102966775A (en) | Direct-current piston type emergency shutoff valve and application thereof | |
| CN205840852U (en) | Constant current open flow reducer after a kind of well fracturing | |
| CN204300440U (en) | Super-pressure hydraulic control check valve | |
| CN204985868U (en) | Small -bore high -pressure axial -flow type check valve | |
| CN203515637U (en) | Pilot-operated check valve for hydraulic support | |
| CN204025760U (en) | Anti-scald water tap | |
| CN209688180U (en) | A kind of discharging device that automatic water stopping is non-return, shower faucet and water supply elbow |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 519170, Guangdong, Doumen District, Zhuhai Province dry town Toyama Industrial Zone, seagull bathroom Branch East of the workshop Patentee after: Zhuhai Edison Ecotech Corp. Address before: 519170, Guangdong, Doumen District, Zhuhai Province dry town Toyama Industrial Zone, seagull bathroom Branch East of the workshop Patentee before: ZHUHAI EDISON ECOTECH CORPORATION Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 519170 east of the workshop of Haiou sanitary ware branch, Fushan Industrial Zone, Qianwu Town, Doumen District, Zhuhai City, Guangdong Province Patentee after: Zhuhai Edison Energy saving Technology Co.,Ltd. Country or region after: China Address before: 519170 east of the workshop of Haiou sanitary ware branch, Fushan Industrial Zone, Qianwu Town, Doumen District, Zhuhai City, Guangdong Province Patentee before: Zhuhai Edison Ecotech Corp. Country or region before: China |