CN108662165B - A kind of double-control valve for taking precautions against defective valve - Google Patents
A kind of double-control valve for taking precautions against defective valve Download PDFInfo
- Publication number
- CN108662165B CN108662165B CN201810491920.6A CN201810491920A CN108662165B CN 108662165 B CN108662165 B CN 108662165B CN 201810491920 A CN201810491920 A CN 201810491920A CN 108662165 B CN108662165 B CN 108662165B
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- connecting tube
- valve
- tube
- screw thread
- ring
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Classifications
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
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- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/10—Means for additional adjustment of the rate of flow
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Multiple-Way Valves (AREA)
Abstract
A kind of double-control valve for taking precautions against defective valve, it is related to a kind of valve, the connection ring (13) of valve body (19) connecting tube (15) one end is fixedly connected on one end of moving tube (6), one end of thick connecting tube (10), which blocks, the circular block (12) with through-hole (23), thick connecting tube outer edge surface annular groove B(11) in rubber seal (8) and mobile pipe orifice D(29) interference fit, thin connecting tube (9) other end connects inlet tube, the internal projection ring (4) of moving tube another port inner wall setting covers in thin connecting tube, it covers and is withstood on the anchor ring between the internal projection ring of moving tube and thick connecting tube and thin connecting tube respectively at spring (7) both ends in thin connecting tube, C-shaped card (33) is stuck in the annular groove A(2) on, one end of C-shaped card connection stay cord；For the present invention when there is defective valve, pipeline can be closed rapidly by the active force of spring by removing C-shaped card, effectively take precautions against the waste of raw material.
Description
Technical field
The present invention relates to a kind of double-control valves, more particularly to a kind of double-control valve for taking precautions against defective valve.
Background technique
It is known, it is required to add material using pipeline in chemical industry, food-processing industry, coal washing industry or building trade
Liquid feeding body, due to frequently switching on, valve is easy to damage, once pipeline valve failure, be under pressure excessive reason, Ren Yuanji
Originally can not approach, such as close valve not in time, it will be caused by be added liquid it is excessive caused by a large amount of waste of raw materials.
Summary of the invention
In order to overcome the shortcomings in the background art, the present invention discloses a kind of double-control valve for taking precautions against defective valve, is occurring
When defective valve, pipeline can be closed rapidly by the active force of spring by removing C-shaped card, effectively take precautions against the waste of raw material.
For achieving the above object, the present invention adopts the following technical scheme:
A kind of double-control valve for taking precautions against defective valve, including thin connecting tube, thick connecting tube, moving tube, spring, C-shaped card, circle
Shape block and valve body, the connection tube end in valve body one end are equipped with expanding connection ring, and the connection ring is fixedly connected on moving tube
One end, one end of thick connecting tube, which blocks, circular block, is evenly distributed with multiple corresponding companies in close the outer rim of the circular block
The through-hole ring flat-plate between connection ring is taken over, in the rubber seal and moving tube being arranged in thick connecting tube outer edge surface annular groove B
Hole D interference fit, the other end middle part of thick connecting tube are equipped with thin connecting tube, and the thin connecting tube other end connects inlet tube, moves
The internal projection ring inner hole A spacer sleeve of dynamic pipe another port inner wall setting covers the spring two in thin connecting tube in thin connecting tube
End is withstood on respectively on the anchor ring between the internal projection ring of moving tube and thick connecting tube and thin connecting tube, in thin connecting tube close to another
One end outer edge surface is equipped with annular groove A, and C-shaped card is stuck on the annular groove A, one end of C-shaped card connection stay cord.
The double-control valve of the described prevention defective valve is equipped with external screw thread B in the outer rim of thin connecting tube, thin connecting tube it is outer
Screw thread B be connected to feed liquor connecting tube one end inner wall setting internal screw thread C on, the external screw thread A of the feed liquor connecting tube other end connect into
Liquid pipe, feed liquor connecting tube middle part outer rim be equipped with annular groove A, moving tube another port inner wall setting internal projection ring set into
In liquid connecting tube, cover the both ends of the spring in feed liquor connecting tube withstand on respectively moving tube internal projection ring and thick connecting tube with carefully connect
On anchor ring between adapter tube, C-shaped card is stuck on the annular groove A, forces the ring flat-plate of moving tube one end and thick connecting tube by C-shaped card
Circular block formed interval；The circular block that the spring heads on thick connecting tube when wherein C-shaped card is removed withstands on ring flat-plate and obtains valve
Pipe plugging when failure.
The double-control valve of the prevention defective valve, is equipped with protruding circular ring, circular block at the close mider hole of ring flat-plate
It is equipped with the annular groove of respective protrusions annulus.
The double-control valve of the prevention defective valve, the outer rim of the circular block is equipped with external screw thread D, in thick connecting tube
Single port inner face is equipped with internal screw thread B, and the external screw thread D of circular block is fixedly connected with the internal screw thread B of thick connecting tube.
The double-control valve of the prevention defective valve is equipped with internal screw thread A, moving tube one end outer rim in the inner wall of connection ring
The external screw thread C of setting is fixedly connected with the internal screw thread A.
The double-control valve of the prevention defective valve, the opening opposite direction rear of C-shaped card protrude after being equipped with, drawstring
One end be bundled in after in the perforation protruded.
The double-control valve of the prevention defective valve, is respectively equipped with outer lug on the outside of the both ends of C-shaped card.
The double-control valve of the prevention defective valve is equipped with becket bridle in the other end of drawstring.
The double-control valve of the prevention defective valve, the valve body are ball valve, are equipped with discharge nozzle in the other end of valve body.
The double-control valve of the prevention defective valve, the handle of valve body valve rod outer end setting are round or "-" type hand
Handle.
Due to the adoption of the technical scheme as described above, the invention has the following beneficial effects:
The double-control valve of prevention defective valve of the present invention, is quickly closed by increasing between former valve and inlet tube
The control device of valve closing door removes the C-shaped card of control device when there is defective valve, and at this moment spring energy release heads on shifting
The internal projection circumferential direction inlet tube direction of dynamic pipe is mobile, while the through-hole closing of circular block is obtained control by the ring flat-plate of valve body connecting tube
The purpose that liquid no longer flows out；The becket bridle of drawstring can be placed on by the present invention can and locate conveniently, convenient for there is defective valve dangerous situation
When Emergency use, effectively taken precautions against the waste of raw material；The present invention is suitable for chemical industry, food-processing industry, coal washing row
Industry or building trade.
Detailed description of the invention
Fig. 1 is assembling structure schematic diagram of the invention；
Fig. 2 is feed liquor connecting pipe structure schematic diagram of the invention；
Fig. 3 is moving tube structural schematic diagram of the invention；
Fig. 4 is thick, the thin connecting pipe structure schematic diagram of integral structure of the present invention；
Fig. 5 is the through-hole and annular groove distributed architecture schematic diagram of circular block of the present invention；
Fig. 6 is C-shaped card schematic perspective view of the invention；
Fig. 7 is structural schematic diagram of the invention；
In figure: 1, external screw thread A；2, annular groove A；3, feed liquor connecting tube；4, internal projection ring；5, inner hole A；6, moving tube；7,
Spring；8, rubber seal；9, thin connecting tube；10, thick connecting tube；11, annular groove B；12, circular block；13, connection ring；14, interior
Screw thread A；15, connecting tube；16, valve rod；17, handle；18, discharge nozzle；19, valve body；20, pore A；21, ring flat-plate；22, annular is recessed
Slot；23, through-hole；24, internal screw thread B；25, inner hole B；26, external screw thread B；27, inner hole C；28, external screw thread C；29, inner hole D；30, interior
Screw thread C；31, becket bridle；32, drawstring；33, C-shaped card；34, pore B；35, external screw thread D；36, rear protrusion；37, it perforates；38, outer
Protrusion；39, protruding circular ring.
Specific embodiment
The present invention can be explained in more detail by the following examples, the open purpose of the present invention is intended to protect the present invention
All changes and improvements in range, the invention is not limited to the following examples；
The double-control valve of defective valve, including thin connecting tube 9, thick connecting tube 10, shifting are taken precautions against in conjunction with described in attached drawing 1~7
Dynamic pipe 6, spring 7, C-shaped card 33, circular block 12 and valve body 19, valve body 19 are ball valve, are equipped in the other end of the valve body 19
The handle 17 of expects pipe 18, the setting of 19 valve rod of valve body, 16 outer end is round or "-" type handle 17, is connected to the company of 19 one end of valve body
15 end of adapter tube is equipped with expanding connection ring 13, and the connection ring 13 is fixedly connected on one end of moving tube 6, that is, is connecting
The inner wall of ring 13 is equipped with internal screw thread A14, and the external screw thread C28 of 6 one end outer rim of moving tube setting is fixedly connected with the internal screw thread A14,
It is synchronized when connection and does encapsulation process, sealing ring can be placed in the appropriate place of link position in connection or wind raw rubber on screw thread
Band is " it should be noted that being arranged sealing ring or belonging to conventional technical means, therefore this using unsintered tape sealing when pipeline connects
Application is no longer described in detail one by one ", one end of thick connecting tube 10, which blocks, circular block 12, uniform in the close outer rim of the circular block 12
Multiple through-holes 23 for being correspondingly connected with ring flat-plate 21 between pipe 15 and connection ring 13, thick 10 outer edge surface annular groove B11 of connecting tube is distributed with
The rubber seal 8 and 6 inner hole D29 of moving tube of middle setting are interference fitted, and thin connection is equipped in the middle part of the other end of thick connecting tube 10
Pipe 9 is equipped with external screw thread B26 in the outer rim of thin connecting tube 9, and the external screw thread B26 of thin connecting tube 9 is connected to 3 one end of feed liquor connecting tube
On the internal screw thread C30 of inner wall setting, the external screw thread A1 connection inlet tube of 3 other end of feed liquor connecting tube, in feed liquor connecting tube 3
Portion's outer rim be equipped with annular groove A2,6 another port inner wall of moving tube setting 4 sets of internal projection ring in feed liquor connecting tube 3, cover into
7 both ends of spring in liquid connecting tube 3 are withstood on respectively between the internal projection ring 4 of moving tube 6 and thick connecting tube 10 and thin connecting tube 9
On anchor ring, C-shaped card 33 is stuck on the annular groove A2, forces the ring flat-plate 21 of 6 one end of moving tube and thick connecting tube 10 by C-shaped card 33
Circular block 12 formed interval；The circular block 12 that the spring 7 heads on thick connecting tube 10 when wherein C-shaped card 33 is removed withstands on ring flat-plate
21 obtain pipe plugging when defective valve.
As an alternative, thin 9 other end of connecting tube connects inlet tube in the case where being not provided with feed liquor connecting tube 3, move
The 4 inner hole A5 spacer sleeve of internal projection ring of dynamic 6 another port inner wall of pipe setting covers the bullet in thin connecting tube 9 in thin connecting tube 9
7 both ends of spring are withstood on respectively on the anchor ring between the internal projection ring 4 of moving tube 6 and thick connecting tube 10 and thin connecting tube 9, are carefully being connected
The close other end outer edge surface of pipe 9 is equipped with annular groove A2, and C-shaped card 33 is stuck on the annular groove A2；In conjunction with attached drawing 1 or 6, C
The opening opposite direction rear of shape card 33 protrudes 36, after one end of drawstring 32 is bundled in the perforation 37 of protrusion 36 after being equipped with,
It is respectively equipped with outer lug 38 on the outside of the both ends of C-shaped card 33, is equipped with becket bridle 31 in the other end of drawstring 32.
In conjunction with attached drawing 1,4 and 5, the present invention considers sealing effect problem when blocking, in the close mider hole of ring flat-plate 21
Place is equipped with protruding circular ring 39, and circular block 12 is equipped with the annular groove 22 of respective protrusions annulus 39, the outer rim of the circular block 12
Equipped with external screw thread D35, be equipped with internal screw thread B24 in the Single port inner face of thick connecting tube 10, the external screw thread D35 of circular block 12 with slightly connect
The internal screw thread B24 of adapter tube 10 is fixedly connected.
It is of the invention use process is as follows:
The external screw thread A1 of the application feed liquor connecting tube 3 assembled is connect with comprising water pipe, mother tube or oil liquid pipeline,
Then main valve " not showing in figure " is opened, connects raw material liq, using the handle 17 of 16 outer end of valve rod in moving valve 19
Sphere rotates, and raw material liq is just entered the pore of feed liquor connecting tube 3 by water pipe, mother tube or oil liquid pipeline after opening valve body 19
B34, the inner hole C27 of thin connecting tube 9, the inner hole B25 of thick connecting tube 10, the through-hole 23 of circular block 12, connecting tube 15 pore A20
Into valve body 19, then flowed out by discharge nozzle 18；When there is 19 failure of valve body, by pulling the becket bridle 31 of drawstring 32, C-shaped card
33 are detached from the annular groove A2 of feed liquor connecting tubes 3, and at this moment the energy release of spring 7, heads on the internal projection ring 4 of moving tube 6 to feed liquor
Pipe direction is mobile, while moving tube 6 closes the through-hole 23 of circular block 12 with the ring flat-plate 21 of 19 connecting tube 15 of moving valve, protrusion circle
Ring 39 is also inserted into the annular groove 22 of circular block 12, obtains preferable plugging effect, and liquid just no longer flows out；At this moment it can replace
New valve body 19, the present invention becket bridle 31 of drawstring 32 can be placed on conveniently can and place, convenient for when there is defective valve dangerous situation
Emergency pulls.
Part not in the detailed description of the invention is the prior art.
Claims (9)
1. a kind of double-control valve for taking precautions against defective valve, including thin connecting tube (9), thick connecting tube (10), moving tube (6), spring
(7), C-shaped card (33), circular block (12) and valve body (19), it is characterized in that: connecting tube (15) end in valve body (19) one end is set
Have expanding connection ring (13), the connection ring (13) is fixedly connected on one end of moving tube (6), one end of thick connecting tube (10)
Closure has circular block (12), the close outer rim of the circular block (12) be evenly distributed with it is multiple be correspondingly connected with pipe (15) with connect
The through-hole (23) of ring flat-plate (21) between ring (13), thick connecting tube (10) outer edge surface annular groove B(11) in be arranged rubber seal
(8) with moving tube (6) inner hole D(29) interference fit, the other end middle part of thick connecting tube (10) is equipped with thin connecting tube (9), thin
The outer rim of connecting tube (9) is equipped with external screw thread B(26), the external screw thread B(26 of thin connecting tube (9)) it is connected to feed liquor connecting tube (3) one
Hold the internal screw thread C(30 of inner wall setting) on, the external screw thread A(1 of feed liquor connecting tube (3) other end) connection inlet tube, connect in feed liquor
Take over (3) middle part outer rim be equipped with annular groove A(2), moving tube (6) another port inner wall setting internal projection ring (4) cover into
In liquid connecting tube (3), the internal projection ring (4) that spring (7) both ends on feed liquor connecting tube (3) withstand on moving tube (6) respectively is covered
On anchor ring between thick connecting tube (10) and thin connecting tube (9), C-shaped card (33) is stuck in the annular groove A(2) on, by C-shaped card
(33) circular block (12) of the ring flat-plate (21) and thick connecting tube (10) that force moving tube (6) one end, which is formed, to be spaced；Wherein C-shaped card
(33) circular block (12) that the spring (7) heads on thick connecting tube (10) when removing withstand on ring flat-plate (21) obtain defective valve when
Pipe plugging；One end of C-shaped card (33) connection stay cord (32).
2. the double-control valve of prevention defective valve according to claim 1, it is characterized in that: at the close middle part of ring flat-plate (21)
Protruding circular ring (39) are equipped at hole, circular block (12) is equipped with the annular groove (22) of respective protrusions annulus (39).
3. the double-control valve of prevention defective valve according to claim 1, it is characterized in that: the outer rim of the circular block (12)
Equipped with external screw thread D(35), internal screw thread B(24 is equipped in the Single port inner face of thick connecting tube (10)), the external screw thread D of circular block (12)
(35) it is fixedly connected with the internal screw thread B(24 of thick connecting tube (10)).
4. the double-control valve of prevention defective valve according to claim 1, it is characterized in that: the inner wall in connection ring (13) is set
Have internal screw thread A(14), the external screw thread C(28 of moving tube (6) one end outer rim setting) it is fixedly connected with the internal screw thread A(14).
5. the double-control valve of prevention defective valve according to claim 1, it is characterized in that: the opening negative side of C-shaped card (33)
(36) are protruded after posteriorly face is equipped with, one end of drawstring (32) is protruded after being bundled in the perforation (37) of (36).
6. the double-control valve of prevention defective valve according to claim 5, it is characterized in that: at the both ends of C-shaped card (33)
Outside is respectively equipped with outer lug (38).
7. the double-control valve of prevention defective valve according to claim 5, it is characterized in that: the other end in drawstring (32) is set
There are becket bridle (31).
8. the double-control valve of prevention defective valve according to claim 1, it is characterized in that: the valve body (19) is ball valve,
Discharge nozzle (18) are equipped in the other end of valve body (19).
9. the double-control valve of prevention defective valve according to claim 1 or 8, it is characterized in that: valve body (19) valve rod (16)
The handle (17) of outer end setting is round or "-" type handle (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810491920.6A CN108662165B (en) | 2018-05-22 | 2018-05-22 | A kind of double-control valve for taking precautions against defective valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810491920.6A CN108662165B (en) | 2018-05-22 | 2018-05-22 | A kind of double-control valve for taking precautions against defective valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108662165A CN108662165A (en) | 2018-10-16 |
| CN108662165B true CN108662165B (en) | 2019-11-26 |
Family
ID=63777446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810491920.6A Active CN108662165B (en) | 2018-05-22 | 2018-05-22 | A kind of double-control valve for taking precautions against defective valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108662165B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2259541Y (en) * | 1996-02-16 | 1997-08-13 | 王清殿 | Bi-directional safety valve |
| WO2011025141A2 (en) * | 2009-08-28 | 2011-03-03 | Hong Yong Ki | Water-saving device |
| CN203009954U (en) * | 2012-12-21 | 2013-06-19 | 重庆世豪机车制造有限公司 | Sheet safety valve for gas joint |
| CN203743585U (en) * | 2014-03-04 | 2014-07-30 | 朱山川 | Double control valve |
| CN104791543A (en) * | 2015-04-21 | 2015-07-22 | 中国石油大学(北京) | Mechanical emergency shutdowm valve |
-
2018
- 2018-05-22 CN CN201810491920.6A patent/CN108662165B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2259541Y (en) * | 1996-02-16 | 1997-08-13 | 王清殿 | Bi-directional safety valve |
| WO2011025141A2 (en) * | 2009-08-28 | 2011-03-03 | Hong Yong Ki | Water-saving device |
| CN203009954U (en) * | 2012-12-21 | 2013-06-19 | 重庆世豪机车制造有限公司 | Sheet safety valve for gas joint |
| CN203743585U (en) * | 2014-03-04 | 2014-07-30 | 朱山川 | Double control valve |
| CN104791543A (en) * | 2015-04-21 | 2015-07-22 | 中国石油大学(北京) | Mechanical emergency shutdowm valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108662165A (en) | 2018-10-16 |
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Effective date of registration: 20191031 Address after: 314299 Room 302, Unit 2, 8 Building, Jade Garden, Zhongdu Street, Pinghu City, Jiaxing City, Zhejiang Province Applicant after: Ying Jianjun Address before: 315313, Feng Jia Feng Town, Cixi, Zhejiang, Ningbo Province Applicant before: Zhang Wenbing |
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Effective date of registration: 20211228 Address after: 323000 No. 339, Green Valley Avenue, Shuige Industrial Zone, Lishui City, Zhejiang Province Patentee after: UPCHEM (CHINA) Co.,Ltd. Address before: 314299 Room 302, unit 2, building 8, feicui Huayuan, Zhongdai street, Pinghu City, Jiaxing City, Zhejiang Province Patentee before: Ying Jianjun |
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