CN105156729A - Constant-flow water outlet nozzle - Google Patents
Constant-flow water outlet nozzle Download PDFInfo
- Publication number
- CN105156729A CN105156729A CN201510516363.5A CN201510516363A CN105156729A CN 105156729 A CN105156729 A CN 105156729A CN 201510516363 A CN201510516363 A CN 201510516363A CN 105156729 A CN105156729 A CN 105156729A
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- Prior art keywords
- valve seat
- water
- feed
- constant current
- constant
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
Abstract
A constant-flow water outlet nozzle is composed of a screw, a pressure relieving spring, an adjusting valve assembly, a constant-flow valve seat, a pressure relieving valve and the like. Through adjustment and self-control ability of an adjusting valve, the aim of constant flow is achieved, and the influences of the water pressure are avoided; the prestress of an adjusting spring is adjusted by adjusting an adjusting ring, and therefore the aim of adjusting the water output amount according to needs is achieved; and in the water output process, an air hole formed in the constant-flow valve seat is utilized for mixing exterior air and water, and a soft water flow is generated.
Description
Technical field
The present invention relates to a kind of constant-current water outlet nozzle being arranged on the upper alternative traditional faucet water outlet nozzle of tap, belong to the optimisation technique of faucet water outlet nozzle.
Background technique
Most tap adopts angle valve and plunger valve to realize the flow of switch and control water.Because water-outlet quantity can only be decided by the degree opening angle valve, cause water-outlet quantity to be difficult to control and control inaccuracy, during actual used water, a lot of user is open conveniently to save trouble, and often causes water-outlet quantity to exceed its actual demand, causes a large amount of waste.
Existing faucet water outlet nozzle is generally provided with bubbler, and its advantage makes tap water outlet comparatively soft, and its deficiency is the function without water yield adjusting.
Therefore, need to find a kind of can water yield adjusting and with the faucet water outlet nozzle of bubbler function.
Summary of the invention
The object of the invention is a kind of can water yield adjusting and with the faucet water outlet nozzle of bubbler function.
Technological scheme of the present invention is: constant-current water outlet nozzle, for directly substituting traditional faucet water outlet nozzle, or is applied to the liquid and gas field that need to control flow; Constant-current water outlet nozzle is made up of screw 1, pressure release spring 2, modulating valve 3, constant current valve seat 4, pressure release valve seat 5, Decompression valves 6, Regulation spring 7, jet orifice plate 8, shell 9, filter screen 10, regulating ring 11; Modulating valve 3 is provided with central through bore, and the outer wall 31 of modulating valve is conical surface, establishes bossed hollow support post 32 in the waterexit end of modulating valve 3, is provided with support 33 in the waterexit end of supporting post 32 endoporus; Constant current valve seat 4 hollow, the direction of endoporus from feed-water end to waterexit end of constant current valve seat 4 is provided with cone shape hole 41, supporting frame 42 successively, regulates chamber 43; Described cone shape hole 41 and the outer wall of modulating valve 3 are that negative and positive coordinate; The direction of outer wall from feed-water end to waterexit end of constant current valve seat 4 is divided into two parts connected, and the direction from feed-water end to waterexit end is followed successively by locating lugs 44 and mixing chamber 45; The diameter of described locating lugs 44 is greater than the diameter of mixing chamber; The wall of mixing chamber 45 is provided with a circle pore 46; The wall regulating chamber 43 is provided with screw thread; Pressure release valve seat 5 is provided with central through bore, and its waterexit end endoporus and the outer wall construction of Decompression valves 6 are that negative and positive coordinate; The valve rod of Decompression valves 6 is provided with endoporus, and inner hole wall is provided with screw thread; Regulation spring 7 is connected in series by column spring and turriform spring and forms, and column spring is positioned at feed-water end, and the tower top diameter of turriform spring is identical with column spring; Jet orifice plate 8 is provided with intensive spray orifice; Described shell 9 is for being provided with the Cylindrical object of central through bore, and the direction of its endoporus from feed-water end to waterexit end is divided into two sections, and the diameter of first paragraph is greater than the diameter of second segment, and the diameter of second segment is greater than the external diameter 0.4mm-1.4mm of constant current valve seat 4 waterexit end; The tubulose of regulating ring 11 in hollow, the end face towards feed-water end is provided with more than three adjustable columns 111, and regulating ring outer rim is provided with outside thread, and the edge of regulating ring waterexit end is provided with the adjustment bead of a circle projection.
During assembling, modulating valve 3 is filled in the cone shape hole 41 of constant current valve seat 4, make the center hole of newel 32 through supporting frame 42 of modulating valve 3, then pressure release valve seat 5 is filled in constant current valve seat 4 from waterexit end to the direction of feed-water end, make pressure release valve seat inner hole sleeve be connected on the newel 32 of modulating valve 3; Decompression valves 6 is inserted therein hole from the waterexit end of pressure release valve seat 5, and passes the support 33 of modulating valve 3; Pressure release spring 2 is filled in its central through bore from the feed-water end of modulating valve 3, then screw 1 is passed pressure release spring 2 from feed-water end to the direction of waterexit end, be screwed in the endoporus of Decompression valves 6 valve rod; The column spring section of Regulation spring 7 is filled in it from the waterexit end of constant current valve seat 4 regulate chamber 43 and be screwed in the outer wall thread of pressure release valve seat 5; Jet orifice plate 8 is put into it from the waterexit end of constant current valve seat 4 and regulates chamber 43; Again constant current valve seat 4 is filled in its inner chamber from the feed-water end of shell 9, filter screen 10 is put into the inner chamber of regulating ring 11 from feed-water end, then regulating ring 11 is filled in from the waterexit end of shell 9 and is screwed in the inner thread of mixing chamber; In the process screwed, the adjustable column 111 on regulating ring 11 withstands in jet orifice plate 8; When regulating ring 11 is screwed on constant current valve seat 4 completely, pore 46 is between the water inlet end face and jet orifice plate 8 of regulating ring 11; Gap is left between described regulating ring and shell.
Gap is left between described regulating ring and shell.
The diameter of described adjustment bead is more than or equal to the diameter of shell 9.
Beneficial effect
1, directly traditional faucet water outlet nozzle is substituted by constant-current water outlet nozzle, modulating valve can regulate its position in cone shape hole automatically according to the change of hydraulic pressure, if hydraulic pressure is excessive, modulating valve encloses cone shape hole, the then position of adjusting pressure release valve in modulating valve, thus reach the object of stable water-outlet quantity; Spray head at the prestressing force regulating the adjustment of the position in chamber Regulation spring by adjustment, play the object of water yield adjusting as required;
2, play the object of water yield adjusting as required by the prestressing force of adjustment regulating ring adjustment Regulation spring, and utilize in exiting water process and be located at the pore on constant current valve seat the air in the external world is mixed with water, produce soft current.
Accompanying drawing explanation
Fig. 1 is detonation configuration schematic diagram of the present invention;
Fig. 2 is cross-sectional view of the present invention;
In figure, 1, screw; 2, pressure release spring; 3, modulating valve; 31, the outer wall of modulating valve; 32, supporting post; 33, support; 4, constant current valve seat; 41, cone shape hole, 42, supporting frame, 43, regulate chamber, 44, locating lugs; 45, mixing chamber; 46, pore; 5, pressure release valve seat; 6, Decompression valves; 7, Regulation spring; 8, jet orifice plate; 9, shell; 10, filter screen; 11, regulating ring; 111, adjustable column.
Embodiment
As depicted in figs. 1 and 2, constant-current water outlet nozzle, is made up of screw 1, pressure release spring 2, modulating valve 3, constant current valve seat 4, pressure release valve seat 5, Decompression valves 6, Regulation spring 7, jet orifice plate 8, shell 9, filter screen 10, regulating ring 11.
Modulating valve 3 is provided with central through bore, and the outer wall 31 of modulating valve is conical surface, establishes bossed hollow support post 32 in the waterexit end of modulating valve 3, is provided with support 33 in the waterexit end of supporting post 32 endoporus.
Constant current valve seat 4 hollow, the direction of endoporus from feed-water end to waterexit end of constant current valve seat 4 is provided with cone shape hole 41, supporting frame 42 successively, regulates chamber 43; Described cone shape hole 41 and the outer wall of modulating valve 3 are that negative and positive coordinate; The direction of outer wall from feed-water end to waterexit end of constant current valve seat 4 is divided into two parts connected, and the direction from feed-water end to waterexit end is followed successively by locating lugs 44 and mixing chamber 45; The diameter of described locating lugs 44 is greater than the diameter of mixing chamber; The wall of mixing chamber 45 is provided with a circle pore 46; The wall regulating chamber 43 is provided with screw thread.
Pressure release valve seat 5 is provided with central through bore, and its waterexit end endoporus and the outer wall construction of Decompression valves 6 are that negative and positive coordinate; The valve rod of Decompression valves 6 is provided with endoporus, and inner hole wall is provided with screw thread; Regulation spring 7 is connected in series by column spring and turriform spring and forms, and column spring is positioned at feed-water end, and the tower top diameter of turriform spring is identical with column spring; Jet orifice plate 8 is provided with intensive spray orifice.
Described shell 9 is for being provided with the Cylindrical object of central through bore, and the direction of its endoporus from feed-water end to waterexit end is divided into two sections, and the diameter of first paragraph is greater than the diameter of second segment, and the diameter of second segment is greater than the external diameter 0.4mm-1.4mm of constant current valve seat 4 waterexit end.
The tubulose of regulating ring 11 in hollow, end face towards feed-water end is provided with more than three adjustable columns 111, regulating ring outer rim is provided with outside thread, and the edge of regulating ring waterexit end is provided with the adjustment bead of a circle projection, and the diameter of described adjustment bead is more than or equal to the diameter of shell 9.
During assembling, modulating valve 3 is filled in the cone shape hole 41 of constant current valve seat 4, make the center hole of newel 32 through supporting frame 42 of modulating valve 3, then pressure release valve seat 5 is filled in constant current valve seat 4 from waterexit end to the direction of feed-water end, make pressure release valve seat inner hole sleeve be connected on the newel 32 of modulating valve 3; Decompression valves 6 is inserted therein hole from the waterexit end of pressure release valve seat 5, and passes the support 33 of modulating valve 3; Pressure release spring 2 is filled in its central through bore from the feed-water end of modulating valve 3, then screw 1 is passed pressure release spring 2 from feed-water end to the direction of waterexit end, be screwed in the endoporus of Decompression valves 6 valve rod; The column spring section of Regulation spring 7 is filled in it from the waterexit end of constant current valve seat 4 regulate chamber 43 and be screwed in the outer wall thread of pressure release valve seat 5; Jet orifice plate 8 is put into it from the waterexit end of constant current valve seat 4 and regulates chamber 43; Again constant current valve seat 4 is filled in its inner chamber from the feed-water end of shell 9, filter screen 10 is put into the inner chamber of regulating ring 11 from feed-water end, then regulating ring 11 is filled in from the waterexit end of shell 9 and is screwed in the inner thread of mixing chamber; In the process screwed, the adjustable column 111 on regulating ring 11 withstands in jet orifice plate 8.
When regulating ring 11 is screwed on constant current valve seat 4 completely, pore 46 is between the water inlet end face and jet orifice plate 8 of regulating ring 11.
Before using, seal ring is filled in its endoporus from the feed-water end of shell 9, be pressed onto the feed-water end edge of constant current valve seat 4, be then screwed in faucet water outlet nozzle.
During work, open tap, water enters into constant-current water outlet nozzle, the water inlet end face of water impact modulating valve, due to the pressure effect of Regulation spring 7, modulating valve 3 is in open mode, current flow into from the gap between modulating valve and constant current valve seat and regulate chamber 43, mixing chamber is ejected into through the hole in jet orifice plate 8, according to venturi principle, swiftly flowing water makes to produce negative pressure in mixing chamber, extraneous air enters in mixing chamber along the gap left between regulating ring and shell, water and air strikes on filter screen, due to the damping function of filter screen, spray water slow down and, be mingled with air outflow.
When the hydraulic pressure flowing through modulating valve 3 is larger, when being enough to the prestressing force overcoming Regulation spring 7, gap between modulating valve and constant current valve seat will be just little, the water yield flowing through constant-current water outlet nozzle will reduce, as now hydraulic pressure reduces, under the effect of Regulation spring, the gap between modulating valve and constant current valve seat can become again large, thus plays the constant current effect of current stabilization flow control.If the hydraulic pressure flowing through modulating valve is large especially, exceed the prestressing force of Regulation spring, at this moment, gap between modulating valve and constant current valve seat is blocked completely, powerful hydraulic pressure will promote Decompression valves 6 by the central through bore of modulating valve, Decompression valves overcomes the pressure of pressure release spring, and the space between Decompression valves and pressure release valve seat is opened, and current just flow into from the central through bore of modulating valve and regulate chamber.This makes it possible to prevent from occurring cutout phenomenon when hydraulic pressure is especially big, and ensure suitable water-outlet quantity.
In actual use, user according to the actual demand of self, by regulating regulating ring in the position of the mixing chamber of constant current valve seat, can control max water yield.The direction of regulating ring toward feed-water end is twisted, and adjustable column is toward the direction top spray orifice plate of feed-water end, and jet orifice plate presses the direction of Regulation spring to feed-water end, and the prestressing force of Regulation spring is strengthened, thus strengthens water-outlet quantity.Otherwise will water-outlet quantity be reduced.
Constant-current water outlet nozzle can not produce harmful effect to current when hydraulic pressure is low, only has when hydraulic pressure is excessive, just plays a role, and like this, has both played the effect of constant current, does not affect again the normal use of user.
Directly traditional faucet water outlet nozzle is substituted by constant-current water outlet nozzle, modulating valve can regulate its position in cone shape hole automatically according to the change of hydraulic pressure, if hydraulic pressure is excessive, modulating valve encloses cone shape hole, the then position of adjusting pressure release valve in modulating valve, thus reach the object of stable water-outlet quantity; Spray head at the prestressing force regulating the adjustment of the position in chamber Regulation spring by adjustment, play the object of water yield adjusting as required.
Play the object of water yield adjusting as required by the prestressing force of adjustment regulating ring adjustment Regulation spring, and utilize in exiting water process and be located at the pore on constant current valve seat the air in the external world is mixed with water, produce soft current.
The present invention can also promote the use of the liquid and gas field that need to control flow.
Above-described embodiment is only used to interpretation purposes of the present invention, and is not limitation of the present invention, those skilled in the art, in essential scope of the present invention, makes a variety of changes or substitutes, also should belong to protection category of the present invention.
Claims (4)
1. constant-current water outlet nozzle, for directly substituting traditional faucet water outlet nozzle, or is applied to the liquid and gas field that need to control flow, constant-current water outlet nozzle is by screw (1), pressure release spring (2), modulating valve (3), constant current valve seat (4), pressure release valve seat (5), Decompression valves (6), Regulation spring (7), jet orifice plate (8), shell (9), filter screen (10), regulating ring (11) forms, it is characterized in that: modulating valve (3) is provided with central through bore, the outer wall (31) of modulating valve is conical surface, bossed hollow support post (32) is established in the waterexit end of modulating valve (3), support (33) is provided with in the waterexit end of supporting post (32) endoporus, constant current valve seat (4) hollow, the direction of endoporus from feed-water end to waterexit end of constant current valve seat (4) is provided with cone shape hole (41), supporting frame (42) successively, regulates chamber (43), described cone shape hole (41) is that negative and positive coordinate with the outer wall of modulating valve (3), the direction of outer wall from feed-water end to waterexit end of constant current valve seat (4) is divided into two parts connected, and the direction from feed-water end to waterexit end is followed successively by locating lugs (44) and mixing chamber (45), the diameter of described locating lugs (44) is greater than the diameter of mixing chamber, the wall of mixing chamber (45) is provided with a circle pore (46), the wall regulating chamber (43) is provided with screw thread, pressure release valve seat (5) is provided with central through bore, and its waterexit end endoporus is that negative and positive coordinate with the outer wall construction of Decompression valves (6), the valve rod of Decompression valves (6) is provided with endoporus, and inner hole wall is provided with screw thread, Regulation spring (7) is connected in series by column spring and turriform spring and forms, and column spring is positioned at feed-water end, and the tower top diameter of turriform spring is identical with column spring, jet orifice plate (8) is provided with intensive spray orifice, described shell (9) is for being provided with the Cylindrical object of central through bore, the direction of its endoporus from feed-water end to waterexit end is divided into two sections, the diameter of first paragraph is greater than the diameter of second segment, further, the diameter of shell second segment is greater than the external diameter 0.4mm-1.4mm of constant current valve seat (4) waterexit end, regulating ring (11) tubulose in hollow, the end face towards feed-water end is provided with more than three adjustable columns (111), and regulating ring outer rim is provided with outside thread, and the edge of regulating ring waterexit end is provided with the adjustment bead of a circle projection.
2. constant-current water outlet nozzle according to claim 1, it is characterized in that: during assembling, modulating valve (3) is filled in the cone shape hole (41) of constant current valve seat (4), make the center hole of newel (32) through supporting frame (42) of modulating valve (3), again pressure release valve seat (5) is filled in constant current valve seat (4) from waterexit end to the direction of feed-water end, make pressure release valve seat inner hole sleeve be connected on the newel (32) of modulating valve (3); Decompression valves (6) is inserted therein hole from the waterexit end of pressure release valve seat (5), and passes the support (33) of modulating valve (3); Pressure release spring (2) is filled in its central through bore from the feed-water end of modulating valve (3), again screw (1) is passed pressure release spring (2) from feed-water end to the direction of waterexit end, be screwed in the endoporus of Decompression valves (6) valve rod; The column spring section of Regulation spring (7) is filled in it from the waterexit end of constant current valve seat (4) regulate chamber (43) and be screwed in the outer wall thread of pressure release valve seat (5); Jet orifice plate (8) is put into it from the waterexit end of constant current valve seat (4) and regulates chamber (43); Again constant current valve seat (4) is filled in its inner chamber from the feed-water end of shell (9), filter screen (10) is put into the inner chamber of regulating ring (11) from feed-water end, then regulating ring (11) is filled in from the waterexit end of shell (9) and is screwed in the inner thread of mixing chamber; In the process screwed, the adjustable column (111) on regulating ring (11) withstands in jet orifice plate (8); When regulating ring (11) is screwed on constant current valve seat (4) completely, pore (46) is positioned between the water inlet end face of regulating ring (11) and jet orifice plate (8).
3. constant-current water outlet nozzle according to claim 1, is characterized in that: leave gap between described regulating ring and shell.
4. constant-current water outlet nozzle according to claim 1, is characterized in that: the diameter of described adjustment bead is more than or equal to the diameter of shell (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516363.5A CN105156729B (en) | 2012-12-16 | 2013-06-20 | Constant-current water outlet nozzle |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105430098 | 2012-12-16 | ||
| CN201210543009 | 2012-12-16 | ||
| CN201310244453.4A CN103335141B (en) | 2012-12-16 | 2013-06-20 | Faucet constant-current water outlet nozzle |
| CN201510516363.5A CN105156729B (en) | 2012-12-16 | 2013-06-20 | Constant-current water outlet nozzle |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310244453.4A Division CN103335141B (en) | 2012-12-16 | 2013-06-20 | Faucet constant-current water outlet nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105156729A true CN105156729A (en) | 2015-12-16 |
| CN105156729B CN105156729B (en) | 2017-07-04 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310244453.4A Expired - Fee Related CN103335141B (en) | 2012-12-16 | 2013-06-20 | Faucet constant-current water outlet nozzle |
| CN201510516363.5A Active CN105156729B (en) | 2012-12-16 | 2013-06-20 | Constant-current water outlet nozzle |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310244453.4A Expired - Fee Related CN103335141B (en) | 2012-12-16 | 2013-06-20 | Faucet constant-current water outlet nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103335141B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195285B (en) * | 2013-10-29 | 2018-05-11 | 南安市丽迪家居用品有限公司 | Leading water nozzle |
| CN106481857B (en) * | 2016-11-18 | 2018-11-06 | 宁波方太厨具有限公司 | The water servomechanism of fluctuation resistant to pressure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5100055A (en) * | 1989-09-15 | 1992-03-31 | Modern Faucet Mfg. Co. | Spray valve with constant actuating force |
| CN201129517Y (en) * | 2007-11-21 | 2008-10-08 | 蓝方庭 | Automatic voltage stabilizing and flow stabilizing valve |
| CN102042686A (en) * | 2010-11-23 | 2011-05-04 | 宁波方太厨具有限公司 | Water pressure stabilizing device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2081607A (en) * | 1980-08-06 | 1982-02-24 | Wai Choy Yeung | Shower head |
| CN201731133U (en) * | 2010-07-01 | 2011-02-02 | 蓝昭凡 | Double-layer automatic pressure and flow stabilizing valve |
| CN202972077U (en) * | 2012-12-16 | 2013-06-05 | 中山市雅西环保科技有限公司 | Faucet constant flow water outlet nozzle |
-
2013
- 2013-06-20 CN CN201310244453.4A patent/CN103335141B/en not_active Expired - Fee Related
- 2013-06-20 CN CN201510516363.5A patent/CN105156729B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5100055A (en) * | 1989-09-15 | 1992-03-31 | Modern Faucet Mfg. Co. | Spray valve with constant actuating force |
| CN201129517Y (en) * | 2007-11-21 | 2008-10-08 | 蓝方庭 | Automatic voltage stabilizing and flow stabilizing valve |
| CN102042686A (en) * | 2010-11-23 | 2011-05-04 | 宁波方太厨具有限公司 | Water pressure stabilizing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103335141B (en) | 2015-10-21 |
| CN105156729B (en) | 2017-07-04 |
| CN103335141A (en) | 2013-10-02 |
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Effective date of registration: 20190910 Address after: 244000 Second Floor of No.4 Factory Building of Taishan Avenue Taixiang Industrial Park, Tongling Economic and Technological Development Zone, Anhui Province Patentee after: Tongling Jingyue Electronic Co., Ltd. Address before: 362212 Fujian city of Quanzhou province Jinjiang city Chidian bridge citimex 5 Washington building 1102 Patentee before: JINJIANG DONGHENG INDUSTRIAL DESIGN CO., LTD. |