CN103267145B - Hard seal four-way rotary valve - Google Patents
Hard seal four-way rotary valve Download PDFInfo
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- CN103267145B CN103267145B CN201310170593.1A CN201310170593A CN103267145B CN 103267145 B CN103267145 B CN 103267145B CN 201310170593 A CN201310170593 A CN 201310170593A CN 103267145 B CN103267145 B CN 103267145B
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- valve
- spool
- valve body
- positioning plate
- way rotary
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Abstract
The invention relates to a hard seal four-way rotary valve which is characterized in that a valve chamber is formed inside a valve body; the valve chamber with two communicated ends penetrates the valve body; the inner diameter of the upper end of the valve chamber is larger than that of the lower end of the valve chamber and the cross section is in a cone shape; valve ports are communicated with the valve chamber; a polytetrafluoroethylene valve core which is closely attached to the inner wall of the valve chamber to form into hard seal is arranged inside the valve chamber of the valve body; the diameters of the upper end and the lower end of the polytetrafluoroethylene valve core are larger than inner diameters of the upper end and the lower end of the valve chamber respectively to enable the upper end of the polytetrafluoroethylene valve core to be placed outside the valve chamber; the polytetrafluoroethylene valve core is provided with two flow channels which are used for connecting with the valve ports; the two flow channels which are symmetric along the axis of the polytetrafluoroethylene valve core are formed in the circumferential lateral wall of the polytetrafluoroethylene valve core in a parallel mode and the linear distance of the two flow channels is larger than the diameter of every valve port; and an operating handle is fixed at the upper end of the polytetrafluoroethylene valve core which is flexibly fixed inside the valve chamber of the valve body through the operating handle. According to the hard seal four-way rotary valve, the valve core is made of polytetrafluoroethylene materials, so that particles or powder impurities caused by friction between the valve core and the valve body are avoided, the corrosion resistance of the hard seal four-way rotary valve is improved, and the sanitary requirements of the hard seal four-way rotary valve during usage are met.
Description
Technical field
The present invention relates to a kind of valve, relate to one in particular and firmly seal four-way rotary valve, belong to pipeline valve field.
Background technique
Changeover valve refers to that spool rotates a kind of valve reaching opening and closing around spindle of valve body line, and in pipeline, Main Function cuts off, distributes and change media flow direction.Be in history the earliest by the valve that people adopt, because structure is simple, opening and closing is rapid, and easy to operate, fluid resistance is little, is still widely used from the present.
At present, the rotary valve adopted in the sanitation-grade industries such as pharmacy, bioengineering, food and drink is the soft sealing structure adopted mostly, Sealing can be caused like this to contact with flowing medium, and the chemical property of some flowing medium is very fragile, be easy to chemical reaction occurs as directly contacted with Sealing, be difficult to the Security ensureing fluid, the usage requirement of sanitation-grade cannot be reached; Secondly, adopt the rotary valve of soft seal, when medium temperature raises, Sealing deliquescing can be made to cause revealing, and its stability in use is poor; Although also there is the four-way valve of hard sealing in the market, but the spool of these four-way valves firmly sealed is steel and makes, frictional force between spool and valve body is larger, after using a period of time, Powdered iron filings can be produced, the health usage requirement of pharmacy, bioengineering and food and drink processing industry can not be met; Secondly, because the frictional force between spool and valve body is comparatively large, operate moment of torsion when causing valve opening to be closed bigger than normal, and structure is more complicated, inconvenient disassembly, cleaning, in use for some time, easily leaks.
Summary of the invention
In order to solve above technical problem, the invention provides one and firmly sealing four-way rotary valve, this valve can meet sanitation-grade usage requirement, and structure is simple, and be easy to production and assembly and disassembly, cleaning, the frictional force between spool and valve body is little, open and close flexible operation.
For solving above technical problem, the technological scheme that the present invention takes is that one seals four-way rotary valve firmly, include the valve body of band four valve ports, be provided with in described valve body and run through valve body and the valve pocket that communicates of two ends, it is tapered that the upper-end inner diameter of this valve pocket is greater than bottom diameter cross section, valve port communicates with valve pocket respectively, being provided with in the valve pocket of described valve body fits with valve pocket inwall forms the teflon spool firmly sealed, this spool upper, the diameter at lower two ends is greater than the upper of valve pocket respectively, lower two ends internal diameter makes spool upper end be placed in outside valve pocket, spool is provided with two for connecting the runner of valve port, this runner is its cross section semicircular in shape of opening shape, runner is symmetrical and on all sidewalls being set in parallel in spool and the crow flight distance of two runners is greater than the diameter of valve port along valve core axis, spool upper end is fixed with operating grip and is fixed in the valve pocket of valve body by handle is mobilizable.
Further, described handle is provided with connecting bolt, through hole is provided with at the center of spool, positioning plate is provided with at body base, the end face of this positioning plate is connected with the bottom end of valve body, and described connecting bolt is placed in outer to be threaded with tightening nut of positioning plate through the through hole of spool and makes that spool is mobilizable to be fixed in the valve pocket of valve body.
Further, in described spool, be provided with more than one pin-and-hole, on handle, corresponding position is provided with latch, and this latch inserts in pin-and-hole to be connected with the limiting board be arranged on bottom spool and spool is laterally fixedly connected with and handle synchronous interaction with handle.
Further, below described limiting board, be provided with locking nut, locking nut is threaded with connecting bolt and the end face of locking nut and the end face of limiting board is fitted.
Further, described locking nut and connecting bolt are respectively equipped with lock pin holes, in lock pin holes, are provided with the bearing pin making locking nut and connecting bolt gun iron link.
Further, described locking nut is square, positioning plate is provided with and square through hole, makes positioning plate synchronous interaction when Spool rotating in the square through hole that locking nut is placed in positioning plate; Be provided with limit dais at described body base, this limit dais when lever drive Spool rotating and the sidewall of positioning plate compress spacing.
Further, be provided with groove bottom described spool, limiting board to be placed in groove and to overlay conjunction by steel pad and locking screw parent phase top; Limiting board is provided with the second pin-and-hole, and latch inserts in the second pin-and-hole and compresses mutually with steel pad end face.
Further, polytetrafluoroethylene sealing gasket sheet is provided with at described positioning plate and valve body bottom end.
Further, between described tightening nut and positioning plate, packing ring and compression spring is provided with.
The invention has the beneficial effects as follows the cone structure adopting two ends to communicate valve pocket and spool, utilize the outer wall of spool and valve pocket inwall to fit to be formed and firmly seal, so not only can ensure the sealability of valve, meanwhile, also can be convenient to production and assembly and the disassembly, cleaning of valve; And adopt polytetrafluoroethylmaterial material to make spool, have and avoid the friction between spool and valve body produce particle or powder foreign material and prevent spool and medium generation chemical reaction, improve its corrosion resistance, ensure hygienic requirements when valve uses; Meanwhile, also can reduce the friction factor between spool and valve body, what extend valve has made the life-span.
Accompanying drawing explanation
Fig. 1 is the main TV structure figure of a kind of hard sealing four-way rotary valve of the embodiment of the present invention
Fig. 2 is A--A place sectional structure chart in Fig. 1
Fig. 3 is B--B place sectional structure chart in Fig. 2
Fig. 4 is C--C place sectional structure chart in Fig. 2
Fig. 5 is the main TV structure figure of spool in the embodiment of the present invention
Fig. 6 is D--D place sectional structure chart in Fig. 5
Fig. 7 is the three-dimensional structure diagram of spool in the embodiment of the present invention
Fig. 8 is the main TV structure figure of valve body in this real new embodiment
Fig. 9 is E--E place sectional structure chart in Fig. 8
Figure 10 is the three-dimensional structure diagram of a kind of hard sealing four-way rotary valve of the embodiment of the present invention
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present invention is described further:
As shown in Fig. 1-Figure 10, the present invention is that one seals four-way rotary valve firmly, include the valve body 1 of band four valve ports 11, the valve pocket 12 running through valve body 1 two ends and communicate is provided with in described valve body 1, it is tapered that the upper-end inner diameter of this valve pocket 12 is greater than bottom diameter cross section, valve port 11 communicates with valve pocket 12 respectively, being provided with in the valve pocket 12 of described valve body 1 fits with valve pocket 12 inwall forms the teflon spool 2 firmly sealed, this spool 2 upper, the diameter at lower two ends is greater than the upper of valve pocket 12 respectively, lower two ends internal diameter makes spool 2 upper end be placed in outside valve pocket 12, spool 2 is provided with two for connecting the runner 21 of valve port 11, this runner 21 is its cross section semicircular in shape of opening shape, runner 21 is along spool 2 axisymmetrical and on all sidewalls being set in parallel in spool 2 and the crow flight distance of two runners 21 is greater than the diameter of valve port 11, spool 2 upper end is fixed with operating grip 3 and is fixed in the valve pocket 12 of valve body 1 by handle 3 is mobilizable, because polytetrafluoroethylmaterial material has good heat-resisting quantity and solvent resistance and its friction factor is lower, and adopt polytetrafluoroethylmaterial material to make spool 2, the friction between spool 2 and valve body 1 can be effectively avoided to produce particle or powder foreign material, prevent spool 2 and medium generation chemical reaction, improve its corrosion resistance, ensure hygienic requirements when valve uses, meanwhile, also can reduce the friction factor between spool 2 and valve body 1, what extend valve has made the life-span, and by the cone structure that valve pocket 12 and spool 2 adopt two ends to communicate, utilize the outer wall of spool 2 and valve pocket 12 inwall to fit to be formed and firmly seal, so not only can ensure the sealability of valve, meanwhile, also can be convenient to production and assembly and the disassembly, cleaning of valve, due to the valve port of four on valve body 1 11 be in 90 ° of annular arrays on valve body 1, and by arranging two runners be arranged in parallel 21 on spool 2, when handle 3 drives spool 2 rotation to make runner 21 tilt in 45° angle, runner 21 two ends just can be made to be communicated with valve port 11, realize the unlatching of valve, then rotary spool 290 ° just can realize the switching of valve port 11, the crow flight distance of two runners 21 is set to and is greater than valve port 11 diameter, to ensure that spool 2 can close valve port 11 when not using, as two runner 21 crow flight distance L are less than valve port 11 diameter R, in the valve port 11 that can cause valve, medium back flow is in runner 21, cannot throttle down, runner 21 cross section is set to semicircle shape, at utmost can ensures the traffic requirement of valve like this, meanwhile, also can be convenient to the production and processing of spool 2.
In the present embodiment, for the ease of being fixedly connected with of spool 2 and valve body 1, described handle 3 is provided with connecting bolt 31, through hole 22 is provided with at the center of spool 2, positioning plate 4 is provided with bottom valve body 1, the end face of this positioning plate 4 is connected with the bottom end of valve body 1, and described connecting bolt 31 is placed in outer to be threaded with tightening nut 5 of positioning plate 4 through the through hole 22 of spool 2 and makes that spool 2 is mobilizable to be fixed in the valve pocket 12 of valve body 1; The connecting bolt 31 on handle 3 is utilized to be threaded with tightening nut 5 through spool 2 and positioning plate 4, the assembly and disassembly of spool 2 are so not only facilitated to clean, simultaneously, also can be convenient to regulate the interval that coordinates of spool 2 and valve pocket 12, as spool 2 is too small with the matching gap of valve pocket 12, affect rotarily opening and switching of valve, just can finely tune tightening nut 5, alleviate the pulling force of the connecting bolt 31 pairs of spools 2 on handle 3; As the excesssive gap between spool 2 and valve body 1 valve pocket 12, just can tighten tightening nut 5, utilize handle 3 to press down spool 2 and make spool 2 to bottom offset, thus reduce the matching gap between spool 2 and valve pocket 12 sidewall, realize firmly sealing.
In the present embodiment, in order to ensure the rotatable driving spool 2 of handle 3, more than one pin-and-hole 23 is provided with in described spool 2, for ensureing spool 2 and handle 3 synchronous interaction, pin-and-hole 23 is provided with two, corresponding position is provided with latch 32 on the handle 3, and this latch 32 inserts in pin-and-hole 23 to be connected with the limiting board 6 be arranged on bottom spool 2 and spool 2 is laterally fixedly connected with and handle 3 synchronous interaction with handle 3; Because connecting bolt 31 just plays, spool 2 is fixed in the valve pocket 12 of valve body 1, when handle 3 rotates, connecting bolt 31 can rotate with through hole 22 inter-sync of handle 3 at spool 2, such spool 2 cannot realize rotarily opening and closure function, and pin-and-hole 23 is set on spool 2, being inserted in pin-and-hole 23 by the latch 32 arranged on the handle 3 makes spool 2 and handle 3 realize laterally being fixedly connected with, like this when handle 3 rotates, under the effect of latch 32, spool 2 just can with handle 3 synchronous axial system, realize the unlatching of valve, closed with change; And limiting board 6 is set bottom spool 2, latch 32 one end is fixed in handle 3, the other end inserts in limiting board 6 through the pin-and-hole 23 of spool 2, farthest can promote the rotation torque that latch 32 rotates at handle 3 like this, ensure spool 2 and handle 3 synchronous axial system, if latch 32 one end is fixed on the handle 3, the other end directly inserts in the pin-and-hole 23 of spool 2, such handle 3 is when rotating, and the latch 32 inserting one end of handle 3 easily ruptures, and affects rotarily opening of spool 2; Certainly, also can realize handle 3 by bolt to be fixedly connected with the transverse direction of spool 2, but owing to being bolted, there are some gaps between the thread of the thread screw of bolt, make handle 3 can send out to swing make runner 21 can not realize accurate location with valve port 11 when driving spool 2 to rotate, thus affect the flow control of valve.
In the present embodiment, be subjected to displacement to prevent limiting board 6, affect the lateral connection fastness of spool 2 and handle 3, below described limiting board 6, be provided with locking nut 7, locking nut 7 is threaded with connecting bolt 31 and the end face of the end face of locking nut 7 and limiting board 6 is fitted; By arranging locking nut 7 and making locking nut 7 end face and limiting board 6 end face fit, be fastenedly connected with regard to actuatable valve core 2 and handle 3 when tightening locking nut 7 like this, effectively can prevent the degree of being connected firmly between limiting board 6 Influence of Displacement spool 2 and handle 3.
In the present embodiment, because locking nut 7 is threaded with connecting bolt 31, when handle 3 drives the forward and reverse rotating transfer valve mouth 11 of spool 2 to be communicated with, connecting bolt 31 can rotate thereupon, the locked position change of locking nut 7 will certainly be caused like this, that affect spool 2 with degree of being connected firmly that is handle 3, in order to avoid the locked position of locking nut 7 is subjected to displacement, described locking nut 7 and connecting bolt 31 are respectively equipped with lock pin holes 71, in lock pin holes 71, are provided with the bearing pin 72 making locking nut 7 and connecting bolt 31 gun iron link; By bearing pin 72 by locking nut 7 and connecting bolt 31 gun iron link, so no matter how handle 3 rotates, and locking nut 7 all can rotate thereupon, thus avoids the locked position change of locking nut 7, ensures the degree of being connected firmly between spool 2 and handle 3.
In the present embodiment, for the ease of controlling the accurate switching of spool 2 pairs of valve ports 11, described locking nut 7, in square, positioning plate 4 is provided with and square through hole 41, makes positioning plate 4 synchronous interaction when spool 2 rotates in the square through hole 41 that locking nut 7 is placed in positioning plate 4, bottom described valve body 1, be provided with limit dais 13, this limit dais 13 when handle 3 drives spool 2 to rotate and the sidewall of positioning plate 4 compress spacing, because locking nut 7 is by bearing pin 72 and connecting bolt 31 gun iron link, and locking nut 7 is set to square and snaps in the square through hole 41 of positioning plate 4, such handle 3 is when driving spool 2 to rotate, under the drive of locking nut 7, positioning plate 4 can rotate thereupon, and limit dais 13 is set bottom valve body 1, when handle 2 drives spool 2 rotation to make the sidewall of positioning plate 4 one end and limit dais 13 fit, two runners 21 on spool 2 are communicated with four valve ports 11, when needs switch valve port 11, rotatable handle 3 makes positioning plate 4 the other end sidewall and limit dais 13 fit, now, two runners 21 on spool 2 switch connection valve port 11 mutually, by coordinating of limit dais 13 and positioning plate 4, thus the valve port 11 that can realize valve rapidly switches, and for ease of production and processing, described limit dais 13 is bolt, and this bolt is threaded with valve body 1.
In the present embodiment, for ease of the installation of limiting board 6, be provided with groove 24 bottom described spool 2, limiting board 6 to be placed in groove 24 and to overlay conjunction by steel pad 62 and locking nut 7 phase top; Limiting board 6 is provided with the second pin-and-hole 61, and latch 32 inserts in the second pin-and-hole 61 and compresses mutually with steel pad 62 end face.
In the present embodiment; due to positioning plate 4 meeting synchronous axial system when handle 3 drives spool 2 to rotate; in order to the surface friction drag that reduces between positioning plate 4 and valve body 2 and the sealability ensureing joint; polytetrafluoroethylene sealing gasket sheet 8 is provided with at described positioning plate 4 and valve body 1 bottom end; because the friction factor of polytetrafluoroethylmaterial material is lower; pad 8 is added between positioning plate 4 and valve body 1; surface friction drag when can reduce handle 3 rotary spool 2 greatly between positioning plate 4 and valve body 1, extends valve working life; Meanwhile, the sealability of valve can also be strengthened further.
In the present embodiment, for ensureing the degree of being connected firmly between spool 2 and valve body 1, between described tightening nut 5 and positioning plate 4, packing ring 42 and compression spring 43 is provided with.
Above-described embodiment should not be considered as limitation of the present invention, but any improvement done based on spirit of the present invention, all should within protection scope of the present invention.
Claims (8)
1. one kind seals four-way rotary valve firmly, include the valve body of band four valve ports, it is characterized in that being provided with in described valve body and run through valve body and the valve pocket that communicates of two ends, it is tapered that the upper-end inner diameter of this valve pocket is greater than bottom diameter cross section, valve port communicates with valve pocket respectively, being provided with in the valve pocket of described valve body fits with valve pocket inwall forms the teflon spool firmly sealed, the upper end diameter of this spool is greater than the upper-end inner diameter of valve pocket and makes spool upper end be placed in outside valve pocket, spool is provided with two for connecting the runner of valve port, this runner is its cross section semicircular in shape of opening shape, runner is symmetrical and on all sidewalls being set in parallel in spool and the crow flight distance of two runners is greater than the diameter of valve port along valve core axis, spool upper end is fixed with operating grip and by the mobilizable valve pocket being arranged on the valve body of valve body of handle, more than one pin-and-hole is provided with in described spool, the corresponding position of operating grip is provided with latch, latch to insert in pin-and-hole and be connected with the limiting board be arranged on bottom spool make in the mobilizable valve pocket being arranged on valve body of spool and with handle synchronous interaction.
2. one according to claim 1 seals four-way rotary valve firmly, it is characterized in that described handle is provided with connecting bolt, through hole is provided with at the center of spool, positioning plate is provided with at body base, the end face of this positioning plate is connected with the bottom end of valve body, and described connecting bolt is placed in outer to be threaded with tightening nut of positioning plate through the through hole of spool and makes that spool is mobilizable to be installed in the valve pocket of valve body.
3. one according to claim 2 seals four-way rotary valve firmly, it is characterized in that being provided with locking nut below described limiting board, and locking nut is threaded with connecting bolt and the end face of locking nut and the end face of limiting board are fitted.
4. one according to claim 3 seals four-way rotary valve firmly, it is characterized in that being respectively equipped with lock pin holes on described locking nut and connecting bolt, is provided with the bearing pin making locking nut and connecting bolt gun iron link in lock pin holes.
5. one according to claim 4 seals four-way rotary valve firmly, it is characterized in that described locking nut is square, positioning plate is provided with square through hole, makes positioning plate synchronous interaction when Spool rotating in the square through hole that locking nut is placed in positioning plate; Be provided with limit dais at described body base, this limit dais when lever drive Spool rotating and the sidewall of positioning plate compress spacing.
6. one according to claim 5 seals four-way rotary valve firmly, it is characterized in that being provided with groove bottom described spool, and limiting board to be placed in groove and to overlay conjunction by steel pad and locking screw parent phase top; Limiting board is provided with the second pin-and-hole, and latch inserts in the second pin-and-hole and compresses mutually with steel pad end face.
7. one according to claim 6 seals four-way rotary valve firmly, it is characterized in that being provided with polytetrafluoroethylene sealing gasket sheet at described positioning plate and valve body bottom end.
8. one according to claim 7 seals four-way rotary valve firmly, it is characterized in that being provided with packing ring and compression spring between described tightening nut and positioning plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170593.1A CN103267145B (en) | 2013-05-08 | 2013-05-08 | Hard seal four-way rotary valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170593.1A CN103267145B (en) | 2013-05-08 | 2013-05-08 | Hard seal four-way rotary valve |
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| Publication Number | Publication Date |
|---|---|
| CN103267145A CN103267145A (en) | 2013-08-28 |
| CN103267145B true CN103267145B (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310170593.1A Active CN103267145B (en) | 2013-05-08 | 2013-05-08 | Hard seal four-way rotary valve |
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| Country | Link |
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| CN (1) | CN103267145B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109939486A (en) * | 2019-03-20 | 2019-06-28 | 武汉泰歌氢能汽车有限公司 | A kind of fuel battery engines runner transform particulate filter |
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|---|---|---|---|---|
| GB289254A (en) * | 1927-04-25 | 1928-04-26 | Rowells 1924 Ltd | Improvements in and relating to mixing valves |
| EP0095343A1 (en) * | 1982-05-22 | 1983-11-30 | Dairy Pipe Lines Limited | Improvements in plug valves |
| CN2675980Y (en) * | 2003-11-08 | 2005-02-02 | 秦朋 | Six-position four-way valve of solar water heater |
| CN1719079A (en) * | 2005-03-02 | 2006-01-11 | 上海海星阀门总厂 | Three way valve core rubber lined stopcock |
| CN2830827Y (en) * | 2005-07-19 | 2006-10-25 | 沈阳合普铁道科技有限公司 | 2-position, 4-way cork-type gas directional control valve |
| CN202510767U (en) * | 2012-01-20 | 2012-10-31 | 创尔特热能科技(中山)有限公司 | Gas change-over valve applicable to double gases |
| CN102996859A (en) * | 2012-11-16 | 2013-03-27 | 张其明 | Multi-loop conversion valve |
| CN203240004U (en) * | 2013-05-08 | 2013-10-16 | 浙江日特科技有限公司 | Rigidity sealing four-way rotary valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55145064A (en) * | 1979-05-01 | 1980-11-12 | Kayaba Ind Co Ltd | Control valve for fully hydraulic power steering device |
-
2013
- 2013-05-08 CN CN201310170593.1A patent/CN103267145B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB289254A (en) * | 1927-04-25 | 1928-04-26 | Rowells 1924 Ltd | Improvements in and relating to mixing valves |
| EP0095343A1 (en) * | 1982-05-22 | 1983-11-30 | Dairy Pipe Lines Limited | Improvements in plug valves |
| CN2675980Y (en) * | 2003-11-08 | 2005-02-02 | 秦朋 | Six-position four-way valve of solar water heater |
| CN1719079A (en) * | 2005-03-02 | 2006-01-11 | 上海海星阀门总厂 | Three way valve core rubber lined stopcock |
| CN2830827Y (en) * | 2005-07-19 | 2006-10-25 | 沈阳合普铁道科技有限公司 | 2-position, 4-way cork-type gas directional control valve |
| CN202510767U (en) * | 2012-01-20 | 2012-10-31 | 创尔特热能科技(中山)有限公司 | Gas change-over valve applicable to double gases |
| CN102996859A (en) * | 2012-11-16 | 2013-03-27 | 张其明 | Multi-loop conversion valve |
| CN203240004U (en) * | 2013-05-08 | 2013-10-16 | 浙江日特科技有限公司 | Rigidity sealing four-way rotary valve |
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| CN103267145A (en) | 2013-08-28 |
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Owner name: WENZHOU NUOMENG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHEJIANG RITE TECHNOLOGY CO., LTD. Effective date: 20140227 |
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Effective date of registration: 20140227 Address after: 325000, Zhejiang, Wenzhou economic and Technological Development Zone, Binhai District, No. 67 Indus Road, the first floor of the East Applicant after: ZHEJIANG RITE TECHNOLOGY CO., LTD. Address before: 325000 Zhejiang city of Wenzhou province Wenzhou City Economic and Technological Development Zone Street 73 Industrial Zone sand road No. 58 Applicant before: Zhejiang Rite Technology Co., Ltd. |
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