CN105972279B - Paint high-pressure filteration safety relief valve - Google Patents
Paint high-pressure filteration safety relief valve Download PDFInfo
- Publication number
- CN105972279B CN105972279B CN201610466887.2A CN201610466887A CN105972279B CN 105972279 B CN105972279 B CN 105972279B CN 201610466887 A CN201610466887 A CN 201610466887A CN 105972279 B CN105972279 B CN 105972279B
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- valve pocket
- filtering
- 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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Links
- 239000003973 paint Substances 0.000 title claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 73
- 230000008676 import Effects 0.000 claims abstract description 15
- 238000010992 reflux Methods 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 24
- 210000004907 gland Anatomy 0.000 claims description 15
- 230000009977 dual effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency 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
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013327 media filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Details Of Valves (AREA)
- Filtration Of Liquid (AREA)
Abstract
The present invention relates to a kind of paint high-pressure filteration safety relief valves, it includes body portion and filtration fraction, body portion includes valve rod, valve pocket, valve rod is slided along valve pocket axial limiting, filtration fraction is equipped with import, pressure release refluxing opening, the outlet of control paint flow direction, and the valve of body portion is located in the access between the import and hydraulic return mouth of filtration fraction.Valve rod is in moving rotary relative to valve pocket, valve rod bar portion is fixed with the shank along valve rod radial protrusion, the linkage block for the positioning that slides axially along valve pocket is set in valve pocket, linkage block one end is equipped with the cam surface to link with shank, the linkage block other end offsets spring, and spring compression is limited in valve pocket and keeps pushing against to linkage block.By being combined valve body with filtration fraction, to realize the filtering of high pressure paint and pressure release dual function；Shank is arranged in valve rod in valve body, and shank is slided along the cam surface of linkage block, to which when manual rotation valve rod, valve rod slides axially relative to valve pocket, realizes opening or closing manually for valve.
Description
Technical field
The present invention relates to valve fields, are a kind of paint high-pressure filteration safety relief valves.
Background technology
Relief valve is also known as " safety valve ", is that can realize automatic open close function according to the operating pressure of system, is generally mounted to
System safety is protected in the equipment or pipeline of closed system.When equipment or manifold pressure are more than that relief valve sets pressure, i.e.,
Pressure release is automatically turned on, ensures that equipment and pipeline internal medium pressure in the case where setting pressure, protect equipment and pipeline, prevent to anticipate
Outside.Existing relief valve is according to actual application environment difference, it is required that also differing, such as paints the relief valve of hyperbaric environment,
Characteristic due to painting medium itself is different from general fluid or gas, for the flexibility of relief valve, adjustability and reliable
Property have a higher requirement, therefore general relief valve is more difficult is applicable in.Existing relief valve is mostly that manufacture sets intrinsic pressure
Range, it is more difficult to flexible modulation, and relief valve is more and is adjusted and the function of media filtration without manual, cause certain operating modes compared with
Hardly possible is applicable in.For this purpose, needing to be improved existing relief valve, the relief valve being particularly applied under paint hyperbaric environment carries out
It improves.
Invention content
To overcome above-mentioned deficiency, the present invention to design a kind of paint high-pressure filteration safety relief valve, keep its solution existing similar
Relief valve restricted application, it is more difficult to meet the technical issues of being used under paint hyperbaric environment.It adopts the following technical scheme that reality
It is existing.
The paint high-pressure filteration safety relief valve includes body portion and filtration fraction, and body portion includes valve rod, valve pocket,
Valve rod is slided along valve pocket axial limiting, and when valve rod is axially slided to a wherein positive stop end along valve pocket, the valve of body portion
It opens, when valve rod is axially slided to another positive stop end along valve pocket, the valve of body portion is closed, and filtration fraction is equipped with control oil
Import, pressure release refluxing opening, the outlet of flow direction are painted, the valve of body portion is located between the import and hydraulic return mouth of filtration fraction
Access in.The valve rod is in moving rotary relative to the valve pocket, and valve rod bar portion is fixed with the pin along valve rod radial protrusion
Body, the interior linkage block that the positioning that slides axially along valve pocket is arranged of the valve pocket, linkage block one end are convex equipped with linking with the shank
Wheel face, linkage status are：When shank is slided along cam surface, band ovable valve stem rotates, and valve rod slides axially along valve pocket；Linkage block is another
One end offsets spring, and spring compression is limited in valve pocket and keeps pushing against to linkage block.By above-mentioned by valve body and filtration fraction
In conjunction with to realize the filtering of high pressure paint and pressure release dual function；Shank is arranged in valve rod in valve body, and shank is along the convex of linkage block
Wheel face slides, and to which when manual rotation valve rod, valve rod slides axially relative to valve pocket, that realizes valve plays on or off manually
It closes.
The valve of the body portion is made of sealing valve head and valve seat, and sealing valve head is fixed on the valve rod and is located at valve pocket
Interior one end, valve seat are fixed on described valve pocket one end, and when sealing valve head offsets sealing with valve seat, the valve is closed, when close
When envelope valve head offsets with valve seat releasing, the valve is opened；Sealing element is set between the valve rod and the valve pocket, when described close
When sealing air pressure inside effect of the valve head by the filtration fraction, valve head is sealed by gas pressure power transfers to valve rod, and produce
Raw one is become to making the active force that valve rod is axially moved along valve pocket, valve rod that the active force is transferred to the linkage block and the bullet
Spring, when the active force is more than the active force of the spring, the valve is opened, when the active force is less than the effect of the spring
When power, the valve remains turned-off.With this configuration, the releasing pressure automatically of valve body is realized.
The filtration fraction includes filtering glass holder, filtering inner core, strainer, filter cup gland, filtering glass holder one end and filtering
Cup gland is tightly connected, and a filter chamber is formed inside the two, and the strainer is positioned in filter chamber, and the filtering inner core is placed in
In strainer, and filters inner core one end and be fixed on the filter cup gland；Shape between filtering surface and the filtering cavity wall on the outside of strainer
At outer gap, inner width is formed between outer core in strainer inside filtering surface and the filtering, outer gap is separated with inner width by strainer, described
The outlet of filtration fraction is set to the filtering glass holder side, and is directly communicated with the outer gap；Equipped with the filtration fraction
Import and pressure release refluxing opening are set to the filtering glass holder other end, and import, pressure release refluxing opening are directly communicated with the inner width.
By filtering glass holder in form above-mentioned inner width and outer gap, to make high pressure paint filtering glass holder in formed certain flow velocity with
Pressure keeps filtering more abundant, and effect is more preferable.
The filter chamber, strainer are tubular, and the main body of the filtering inner core is cylindrical, and filtering inner core is close to the mistake
The position of filter bowl gland forms the taper of gradual change, and the positioning strainer is offseted close to filter cup gland by the conical surface at taper position
One end.With this configuration, make strainer, the filtering mutual fitting tight of inner core in filtering glass holder, reduce because assembly loosens
And lead to shake.Meanwhile taper position is set, it can also facilitate the various sizes of strainer of installation, to reach required inner width
With the requirement of outer gap.
The valve pocket screw top connects clamp nut, and valve rod one end stretches out clamp nut and is fixedly connected with handle, by this
Clamp nut is by the spring retainer in valve pocket.By the way that the clamp nut is arranged, facilitate the pressing force of adjustment spring, to real
Existing a certain range of pressure release operating mode is adjusted.
The position of the handle connection valve rod forms a cover for keeping the clamp nut not exposed.By the cover,
Clamp nut maloperation is prevented, and pressure release operating mode is caused to change.
The advantage of the invention is that：Realize that pressure release and filtering are difunctional, pressure release is reliable, good filtration effect, and has manually
Pressure release and releasing pressure automatically, operation is more convenient, meanwhile, pressure release operating mode facilitates adjusting, applied widely.
Description of the drawings
Fig. 1 is the schematic cross-sectional view of the present invention, and arrow indicates direction.
Fig. 2 is the planar structure schematic diagram of the present invention.
Fig. 3 is the overlooking structure diagram of Fig. 2.
Serial number and entitled in figure：1, handle, 101, the cover, 2, valve rod, 3, clamp nut, 4, spring, 5, shank, 6, connection
Motion block, 7, valve pocket, 8, sealing valve head, 9, valve seat, 10, filtering glass holder, 1001, import, 1002, pressure release refluxing opening, 1003, go out
Mouthful, 1004, outer gap, 1005, inner width, 11, strainer, 12, filtering inner core, 13, filter cup gland.
Specific implementation mode
In conjunction with attached drawing, the present invention is described as follows.
As shown in Figs. 1-3, which is made of body portion and filtration fraction.
Body portion includes handle 1, valve rod 2, clamp nut 3, spring 4, linkage block 6, valve pocket 7, valve, sealing element, valve
Door is made of sealing valve head 8 and valve seat 9.Concrete structure is：Valve rod 2 from top to bottom successively pivot bush unit clamp nut 3, spring 4,
Linkage block 6,2 top of valve rod are fixedly connected with handle 1, bottom end fixed connection and sealing valve head 8, and valve rod 2, spring 4, linkage block 6 are set
It in the valve pocket 7, and is connect with 7 screw top of valve pocket by clamp nut 3, spring 4, the compression of linkage block 6 is limited in valve
In set 7.Valve rod 2 is slided along 7 axial limiting of valve pocket, and relative to 7 moving rotary of valve pocket, linkage block 6 is relative to valve pocket 7 in orientation
Sliding limit.Above-mentioned valve seat 9 is fixed on 7 bottom of valve pocket, and is axially moved with valve rod 2, seals and is formed between valve head 8 and valve seat 9
The opening of valve and closing two states.2 bar portion of valve rod is fixed with the shank 5 along 2 radial protrusion of valve rod, 6 one end of linkage block
Equipped with cam surface, when rotation valve rod 2, when valve rod 2 drives shank 5 to be slided along cam surface, cam surface makes shank 5 with 2 edge of ovable valve stem
Valve pocket 7 slides axially, and opening or closing for valve is realized by sliding axially for valve rod 2；6 other end of linkage block is by above-mentioned spring
4 keep pushing against.2 bar portion of valve rod is equipped with sealing ring close to the position of sealing valve head 8, keeps valve rod 2 opposite with valve pocket 7 by sealing ring
While movable, holding seals between the two.
Filtration fraction includes filtering glass holder 10, filtering inner core 12, strainer 11, filter cup gland 13,10 one end of filtering glass holder
It is connect with 13 thread seal of filter cup gland, forms the filter chamber of a tubular inside the two, be correspondingly arranged in tubular filter chamber
The strainer 11 of one tubular, the interior columned filtering inner core 12 of setting of strainer 11, filtering 12 threaded one end of inner core are fixed on the mistake
Filter bowl gland 13, and be assemblied in strainer 11 with filter cup gland 13 with 10 screw-threaded coupling of glass holder is filtered.11 outside filter of strainer
Outer gap 1004 is formed between face and filtering cavity wall, and inner width is formed between 11 inside filtering surface of strainer and filtering 12 outer wall of inner core
1005, outer gap 1004 is separated with inner width 1005 by strainer 11.The side for filtering glass holder 10 is equipped with above-mentioned outer gap 1004 directly
The outlet 1003 of conducting, filtering 10 other end of glass holder are equipped with the import 1001 be directly connected with above-mentioned inner width 1005 and pressure release reflux
Mouth 1002.The valve of valve body is to be set in the access that import 1001 is communicated with pressure release refluxing opening 1002 in filtering glass holder 10, is led to
Cross the on and off for opening or closing access between control import 1001 and pressure release refluxing opening 1002 of valve.Valve pocket 7 and mistake
It is to be threadedly coupled with the threaded hole sealing of 10 side of filtering glass holder by 7 bottom of valve pocket between filter bowl set 10.
Further, more reliable, inner width 1005 is positioned in order to make the strainer 11 in filtering glass holder 10 and filter inner core 12
It more uniformly spreads, the main body of above-mentioned filtering inner core 12 is cylindrical, position shape of the filtering inner core 12 close to filter cup gland 13
It at the taper of gradual change, is offseted by the conical surface at taper position and positions 11 one end of strainer, realize reliable location.Valve body in order to prevent
Clamp nut 3 accidentally rotates and leads to pressure release defective valve, and the position that handle 1 is connected to valve rod 2 is designed to form a covering compression spiral shell
To make clamp nut 3 be not easy to touch extraneous mistuning section occurs for the cover 101 of mother 3.
The present invention working method be：The supply side of high pressure paint, filter cup are connected by the import 1001 of filtering glass holder 10
The outlet 1003 of set 10 is used as working end, and the pressure release refluxing opening 1002 for filtering glass holder 10 flows back for pressure release.When rotating clockwise
Handle 1, handle 1 are rotated with ovable valve stem 2, shank 5, and the sealing valve head 8 of valve rod 2 is filtering the high pressure paint effect inside glass holder 10
Under, shank 5 along linkage block 6 cam surface slip band ovable valve stem 2 towards Fig. 1 A to moving, sealing valve head 8 is detached with valve seat 9, i.e.,
Valve is opened, and pressure release reflux is realized by the pressure release refluxing opening 1002 of filtering glass holder 10.When rotating counterclockwise handle 1, handle 1 drives
Valve rod 2, shank 5 rotate, shank 5 along linkage block 6 cam surface slip band ovable valve stem 2 towards Fig. 1 B to moving, sealing valve head 8 with
Valve seat 9 offsets sealing, i.e., valve is closed, and high pressure paint is by inner width 1005, strainer 11 and the outer gap 1004 in filter bowl set 10, most
Working condition is entered by the outlet 1003 of filtering glass holder 10 eventually.In the state that above-mentioned valve is closed, the height in filter cup set 10
When the pressure of pressure oil paint is more than the elastic force of valve body inner spring 4, sealing valve head 8, towards the A of Fig. 1 to movement, seals valve head with ovable valve stem 2
8 detach with valve seat 9, that is, realize releasing pressure automatically.It is right to adjust clamp nut 3 by rotating the clamp nut 3 at 7 top of valve pocket
The pressing force of spring 4 changes self-relieving ability.
Claims (6)
1. a kind of paint high-pressure filteration safety relief valve comprising body portion and filtration fraction, body portion include valve rod
（2）, valve pocket（7）, valve rod（2）Along valve pocket（7）Axial limiting slides, and works as valve rod（2）Along valve pocket（7）It is axially slided to wherein one
When positive stop end, the valve of body portion is opened, and valve rod is worked as（2）Along valve pocket（7）When being axially slided to another positive stop end, body portion
Valve close, filtration fraction be equipped with control paint flow direction import（1001）, pressure release refluxing opening（1002）, outlet（1003）,
The valve of body portion is located at the import of filtration fraction（1001）In access between hydraulic return mouth；It is characterized in that described
Valve rod（2）Relative to the valve pocket（7）In moving rotary, valve rod（2）Bar portion is fixed with along valve rod（2）The shank of radial protrusion
（5）, the valve pocket（7）It is interior to be arranged along valve pocket（7）Slide axially the linkage block of positioning（6）, linkage block（6）One end be equipped with it is described
Shank（5）The cam surface of linkage, linkage status are：Shank（5）When being slided along cam surface, band ovable valve stem（2）Rotation, and valve rod
（2）Along valve pocket（7）It slides axially；Linkage block（6）The other end offsets spring（4）, and spring（4）Compression is limited in valve pocket（7）It is interior
To linkage block（6）It keeps pushing against.
2. paint high-pressure filteration safety relief valve according to claim 1, it is characterised in that the valve of the body portion
By sealing valve head（8）And valve seat（9）It constitutes, seals valve head（8）It is fixed on the valve rod（2）Positioned at valve pocket（7）Interior one end, valve
Seat（9）It is fixed on the valve pocket（7）One end, when sealing valve head（8）With valve seat（9）Offset sealing when, the valve is closed, when close
Seal valve head（8）With valve seat（9）When releasing offsets, the valve is opened；The valve rod（2）With the valve pocket（7）Between be arranged it is close
Sealing, when the sealing valve head（8）When being acted on by the air pressure inside of the filtration fraction, valve head is sealed（8）By gas pressure power
Transfers are to valve rod（2）, and generate one and become to making valve rod（2）Along valve pocket（7）The active force of axial movement, valve rod（2）It should
Active force is transferred to the linkage block（6）And the spring（4）, when the active force is more than the spring（4）Active force when, institute
Valve opening is stated, when the active force is less than the spring（4）Active force when, the valve remains turned-off.
3. paint high-pressure filteration safety relief valve according to claim 1 or 2, it is characterised in that the filtration fraction includes
Filter glass holder（10）, filtering inner core（12）, strainer（11）, filter cup gland（13）, filter glass holder（10）One end and filter cup pressure
Lid（13）It is tightly connected, forms a filter chamber, the strainer inside the two（11）It is positioned in filter chamber, the filtering inner core
（12）It is placed in strainer（11）It is interior, and filter inner core（12）The filter cup gland is fixed in one end（13）；Strainer（11）It filters in outside
Outer gap is formed between face and the filtering cavity wall（1004）, strainer（11）Inside filtering surface and the filtering inner core（12）Outer wall it
Between form inner width（1005）, outer gap（1004）With inner width（1005）Pass through strainer（11）Separate, the outlet of the filtration fraction
（1003）It is set to the filtering glass holder（10）Side, and with the outer gap（1004）Directly communicate；Equipped with the filtration fraction
Import（1001）With pressure release refluxing opening（1002）It is set to the filtering glass holder（10）The other end, and import（1001）, pressure release
Refluxing opening（1002）With the inner width（1005）Directly communicate.
4. paint high-pressure filteration safety relief valve according to claim 3, it is characterised in that the filter chamber, strainer（11）
It is tubular, the filtering inner core（12）Main body it is cylindrical, filter inner core（12）Close to the filter cup gland（13）'s
Position forms the taper of gradual change, is offseted by the conical surface at taper position and positions the strainer（11）Close to filter cup gland（13）'s
One end.
5. paint high-pressure filteration safety relief valve according to claim 1, it is characterised in that the valve pocket（7）Screw top
Connect clamp nut（3）, valve rod（2）Clamp nut is stretched out in one end（3）It is fixedly connected with handle（1）, pass through the clamp nut（3）It will
The spring（4）It is limited in valve pocket（7）It is interior.
6. paint high-pressure filteration safety relief valve according to claim 5, it is characterised in that the handle（1）Connect valve rod
（2）Position formed one make the clamp nut（3）Not exposed the cover（101）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610466887.2A CN105972279B (en) | 2016-06-24 | 2016-06-24 | Paint high-pressure filteration safety relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610466887.2A CN105972279B (en) | 2016-06-24 | 2016-06-24 | Paint high-pressure filteration safety relief valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105972279A CN105972279A (en) | 2016-09-28 |
| CN105972279B true CN105972279B (en) | 2018-09-21 |
Family
ID=57019763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610466887.2A Active CN105972279B (en) | 2016-06-24 | 2016-06-24 | Paint high-pressure filteration safety relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105972279B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325159B (en) * | 2022-08-04 | 2024-10-22 | 江苏华洋新思路能源装备股份有限公司 | An overpressure release type pressure vessel |
| CN116243537B (en) * | 2023-05-11 | 2023-07-25 | 武汉理工大学 | An optical anti-shake device |
| CN119240175B (en) * | 2024-12-02 | 2025-02-25 | 山东啄木鸟漆业有限公司 | A sealed can for storing and transporting paint |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2685427B1 (en) * | 1991-12-23 | 1995-04-14 | Sfr Sa Robineterie | SAFETY VALVE. |
| ITMI20040467U1 (en) * | 2004-10-18 | 2005-01-18 | Caleffi Spa | SAFETY VALVE WITH ELASTIC RECALL OF THE HANDLE |
| ITMI20062523A1 (en) * | 2006-12-28 | 2008-06-29 | Watts Industries Italia S R L | MEMBRANE SAFETY VALVE WITH ANTI-ROTATION SHELL |
| CN201371001Y (en) * | 2009-01-06 | 2009-12-30 | 张献珍 | Paint filter of airless spraying machine |
| CN201510797U (en) * | 2009-08-20 | 2010-06-23 | 段特利 | Precise coating material filter for automatic spraying gun |
| CN205101616U (en) * | 2015-10-10 | 2016-03-23 | 武汉苏泊尔炊具有限公司 | Safety valve |
| CN205806596U (en) * | 2016-06-24 | 2016-12-14 | 浙江兄弟路标涂料有限公司 | Paint high-pressure filteration safety relief valve |
-
2016
- 2016-06-24 CN CN201610466887.2A patent/CN105972279B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105972279A (en) | 2016-09-28 |
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Denomination of invention: Paint high pressure filter safety relief valve Effective date of registration: 20211019 Granted publication date: 20180921 Pledgee: Bank of Huzhou Limited by Share Ltd. Changxin branch Pledgor: ZHEJIANG BROTHER GUIDEPOST PAINT Co.,Ltd. Registration number: Y2021330001957 |