CN109340173A - A kind of water pump and its floating type cutting assembly - Google Patents
A kind of water pump and its floating type cutting assembly Download PDFInfo
- Publication number
- CN109340173A CN109340173A CN201811126321.0A CN201811126321A CN109340173A CN 109340173 A CN109340173 A CN 109340173A CN 201811126321 A CN201811126321 A CN 201811126321A CN 109340173 A CN109340173 A CN 109340173A
- Authority
- CN
- China
- Prior art keywords
- cut
- blade
- disk
- rotary shaft
- cutting
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 13
- 239000004744 fabric Substances 0.000 abstract description 12
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000002224 dissection Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2288—Rotors specially for centrifugal pumps with special measures for comminuting, mixing or separating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/02—Disintegrating by knives or other cutting or tearing members which chop material into fragments with reciprocating knives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/02—Disintegrating by knives or other cutting or tearing members which chop material into fragments with reciprocating knives
- B02C18/04—Details
Abstract
The present invention relates to a kind of water pump and its floating type cutting assemblies, including the rotary shaft rotated by driving source, the cut-off blade, the chopping disk that are docked with rotary shaft, chopping disk is equipped with cutting rod, the end of cut-off blade is equipped with cutting edge, cutting edge can be intermeshed with cutting rod to cut sundries, cut-off blade is equipped with movable axis, and movable axis sliding is socketed on rotary shaft end, is connected with tension spring between movable axis end and rotary shaft；Rotary shaft is equipped with actuator, and driving member is connected between actuator and movable axis；Actuator power transmission is to driving member.Engagement force between cutting rod and cut-off blade can act on the different location of cloth, even if the cloth for the first time on engaged active position is more tough and tensile, but as the position of cutting engagement changes, always cloth can be cut off, its cutting effect is for fixed cutting assembly, and cutting effect is relatively preferable in actual use.
Description
Technical field
The present invention relates to pumping equipment technical fields, more particularly, to a kind of water pump and its floating type cutting assembly.
Background technique
Water pump is conveying liquid or makes the increased machinery of liquid.
In order to prevent long fibrous impurities from blocking water pump, existing water pump also installs cutting assembly in water inlet in the middle,
Referring to Fig. 1, cutting assembly includes a chopping disk a, is equipped with cutting rod b on chopping disk a, also will be installed cutting in Pump Axle
Blade c, cut-off blade c also are located at water inlet, and cut-off blade c is equipped with cutting edge d close to the side of chopping disk a；Water pump pump
Axis will drive cut-off blade c and rotate in a circumferential direction, and the cutting edge d of cut-off blade c can fit in cutting rod b, when impurity enters
When water inlet, cutting edge d and cutting rod b cooperate, and can generate cutting action to impurity；
In actual use, if impurity belongs to toughness biggish cloth, cutting edge d is engaged with the single of cutting rod b and is cut
It is disconnected to be difficult to be cut off, even across multiple engagement, it also will appear the case where failing cutting, if not cutting off, cloth is easy to
It is stuck between cutting edge d and cutting rod b, water inlet is caused to block, influence to intake.
Summary of the invention
The first purpose of the invention is to provide a kind of floating type cutting assemblies, can impurity biggish to toughness
Play stronger cutting effect.
Foregoing invention purpose of the invention has the technical scheme that a kind of floating type cutting assembly,
Including the rotary shaft rotated by driving source, the cut-off blade, the chopping disk that dock with rotary shaft, the chopping disk is equipped with cutting
Item, the end of the cut-off blade are equipped with cutting edge, and the cutting edge can be intermeshed to cut sundries with cutting rod,
The cut-off blade is equipped with movable axis, and movable axis sliding is socketed on rotary shaft end, the movable axis end with
Tension spring is connected between rotary shaft, the tension spring is used to pull cut-off blade toward away from chopping disk side；
The rotary shaft is equipped with actuator, is connected with driving member between the actuator and movable axis；
The actuator power transmission is to driving member, and then driving member driving movable axis carries out the flexible fortune of axial reciprocating along rotary shaft
It is dynamic.
By using above-mentioned technical proposal, when flexible enters between cutting rod and cut-off blade compared with the cloth beaten,
Cutting rod and cutting edge generate first time cutting engagement, which can be directly forced on the position one of cloth, at this time
If there is the case where cloth is not blended, driving member can drive movable axis to be axially moved along rotary shaft, and cut-off blade can be past
Mobile away from the direction of cutting rod, when mobile, which can also be followed by and move, and later, cut-off blade can be cut toward close
The direction for cutting item is mobile, and cutting rod and cutting edge generate second of cutting engagement, which can be directly forced cloth
Position two on, wherein position one and position two are not the same position；In above-mentioned action process, cutting rod and cut-off blade it
Between engagement force can act on the different location of cloth, even if the cloth on active position engaged for the first time is more hard
It is tough, but as the position of cutting engagement changes, cloth can be cut off always, cutting effect is relative to fixed cutting
For component, cutting effect is relatively preferable in actual use.
Preferably, the actuator includes the drive disk for being fixed in rotary shaft, disk of the drive disk close to chopping disk
Several driving protrusions are equipped with, circumferentially array spacings are distributed several driving protrusions with the axle center of rotary shaft；
The driving member includes the drive rod for being fixed in movable axis, and the drive rod is close away from the rod end and drive disk of movable axis
The disk of chopping disk offsets always, and when the rod end of drive rod and driving protrusion offset, drive rod will drive cut-off blade toward cutting
Disk direction is cut to be moved.
By using above-mentioned technical proposal, drive disk can be followed by rotary shaft and be rotated, when driving protrusion and drive rod
Rod end when offseting, drive rod can push movable axis to be moved toward close to chopping disk direction；Rod end and driving when drive rod
When protrusion is separated, the rod end of the pulling force effect of drive rod under tension spring, drive rod can offset with the disk of drive disk, and
Cut-off blade is moved with drive rod at this time, and cut-off blade can mutually be separated with chopping disk；Above-mentioned transmission process, no setting is required additionally
The rotary power of rotary shaft itself is utilized in driving source, completes the reciprocating movement of cut-off blade.
Preferably, the drive rod is equipped with rolling element away from the rod end of movable axis.
By using above-mentioned technical proposal, rolls physical efficiency and rod end and chopping disk that drive rod deviates from motion bar is greatly lowered
Between frictional force, mass activity smooth degree is higher, and the service life is longer.
Preferably, it is described driving protrusion middle part arch upward, and drive protrusion height on both sides gradually reduce to chopping disk
Disk flushes.
By using above-mentioned technical proposal, when position is arched upward at the middle part that the end of drive rod is located at driving protrusion, cutting
Blade can be located most closely to the position of chopping disk；When drive rod is raised toward close driving along driving protrusion two sides or deviates from driving
When protrusion direction is moved, integral transition is relatively smooth, and drive noise is small, long service life.
Preferably, the cut-off blade is equipped with Saw blade, and the Saw blade includes several toothed segments, several toothed segment edges
The orientation of cut-off blade, chopping disk carries out mutually sliding socket；
The chopping disk is equipped with annular groove, and the Saw blade end sliding is connected in annular groove.
By using above-mentioned technical proposal, when cut-off blade rotates in a circumferential direction, Saw blade can along annular groove into
Line slip, sundries that at this time can be relatively soft to part generate dissection；At the same time, cut-off blade can also be sent out with chopping disk
Relative sliding movement can also occur in the process, between toothed segment for raw movement close to each other or separate, even if relatively flexible is miscellaneous
When object is located therein, toothed segment also can generate further saw cut to the sundries and act on；Further improve sundries cutting
Effect.
Preferably, elastic spring is equipped in the Saw blade, the elastic spring is for driving toothed segment mutually to slip off simultaneously
It is supported between cut-off blade, chopping disk.
By using above-mentioned technical proposal, on the one hand, can help to be promoted the opposite fortune between chopping disk and cut-off blade
Make stability；On the other hand, the Relative sliding stability of toothed segment can be also promoted, cutting effect is improved.
A second object of the present invention is to provide a kind of water pumps, can play impurity biggish to toughness stronger
Cutting effect.
Foregoing invention purpose of the invention has the technical scheme that including above-mentioned floating type cutting group
Part.
By using above-mentioned technical proposal, above-mentioned floating type cutting assembly is installed in water pump, it can be to the intracorporal sundries of water
It is cut, the possibility of less blocking.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing cutting assembly；
Fig. 2 is the structural schematic diagram of embodiment one；
Fig. 3 is the portion the A enlarged drawing of Fig. 2；
Fig. 4 is the structural schematic diagram of drive disk.
In figure, a, chopping disk；B, cutting rod；C, cut-off blade；D, cutting edge；1, rotary shaft；2, cut-off blade；3, it cuts
Sword；4, chopping disk；5, cutting rod；6, movable axis；7, tension spring；8, actuator；9, drive disk；10, driving protrusion；11, it passes
Moving part；12, drive rod；13, rolling element；14, Saw blade；15, toothed segment；16, annular groove；17, elastic spring.
Specific embodiment
Below in conjunction with attached drawing 1- attached drawing 4, invention is further described in detail.
Embodiment one:
A kind of floating type cutting assembly, including the rotary shaft 1 rotated by driving source, the cut-off blade docked with 1 end of rotary shaft
2, chopping disk 4, whole chopping disk 4 is in circular ring shape, is equipped with cutting rod 5 on the inner ring surface of chopping disk 4, cutting rod 5 is with chopping disk 4
It is radially distributed centered on middle part, cut-off blade 2 is equipped with cutting edge 3 close to the end of chopping disk 4, and cutting edge 3 can be with cutting
Item 5 is intermeshed to cut sundries.
In order to further enhance cutting effect, cut-off blade 2 is equipped with movable axis 6, and the sliding of movable axis 6 is socketed on rotary shaft
1 end is in concentric setting between movable axis 6 and rotary shaft 1, is connected with tension spring between 6 end of movable axis and rotary shaft 1
7, tension spring 7 is used to pull cut-off blade 2 toward away from 4 side of chopping disk.
It is equipped with actuator 8 in rotary shaft 1, driving member 11,8 power of actuator are connected between actuator 8 and movable axis 6
It is transmitted to driving member 11, and then driving member 11 drives movable axis 6 to carry out axial reciprocating stretching motion along rotary shaft 1.
Wherein, actuator 8 includes the drive disk 9 for being fixed in rotary shaft 1, and drive disk 9 is generally discoid, and rotary shaft 1
It is in be arranged concentrically between the rotary shaft 1 of drive disk 9.Drive disk 9 is equipped with several driving protrusions close to the disk of chopping disk 4
10, with the axle center of rotary shaft 1, circumferentially array spacings are distributed several driving protrusions 10, and the shape of each driving protrusion 10 is three
The middle part of prism, driving protrusion 10 is arched upward, and is driven the height on both sides of protrusion 10 to gradually reduce to 4 disk of chopping disk and flushed.
Wherein, driving member 11 includes being fixed in the drive rod 12 of movable axis 6, drive rod 12 away from movable axis 6 rod end with
Drive disk 9 offsets always close to the disk of chopping disk 4, when the rod end of drive rod 12 and the middle part place of arching upward of driving protrusion 10 offset
When, drive rod 12 will drive cut-off blade 2 and be moved toward 4 direction of chopping disk；When the rod end of drive rod 12 and the disk of drive disk 9
When face offsets, drive rod 12 will drive cut-off blade 2 and be moved toward away from 4 direction of chopping disk.In drive rod 12 away from activity
The rod end of axis 6 is equipped with rolling element 13.
In addition, being equipped with Saw blade 14 on cut-off blade 2, Saw blade 14 includes several toothed segments 15, several toothed segments 15
Orientation along cut-off blade 2, chopping disk 4 carries out mutually sliding socket；Chopping disk 4 is equipped with annular groove 16, Saw blade
The sliding of 14 ends is connected in annular groove 16.Elastic spring 17 is equipped in Saw blade 14, elastic spring 17 is for driving sawtooth
Section 15 is mutually sliped off and is supported between cut-off blade 2, chopping disk 4.
In actual use:
When sundries enters between chopping disk 4 and cut-off blade 2, firstly, the cutting rod 5 on chopping disk 4 can be with cut-off blade 2
On cutting edge 3 generate the first cutting engagement, the secondary cutting engagement can position one to sundries generate dissection；Secondly, rotation
Shaft 1 constantly rotates, and the end of drive rod 12 position that can arch upward from 10 middle part of driving protrusion is moved to the outer disk of drive disk 9,
Tension spring 7 can be driven cut-off blade 2 toward the side for deviating from chopping disk 4 by drive rod 12, and sundries can also occur certain
Displacement；Again, rotary shaft 1 constantly rotates, and the end of drive rod 12 can be moved in driving protrusion 10 from the outer disk of drive disk 9
Portion arches upward position, overcomes the pulling force effect of tension spring 7, and drive rod 12 will drive driving blade and move toward 4 direction of chopping disk,
And dissection is generated to the position of sundries two；It is so constantly reciprocal.
Embodiment two:
A kind of water pump, including the floating type cutting assembly in embodiment one, the floating type cutting assembly be installed on the water pump into
At the mouth of a river.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (7)
1. a kind of floating type cutting assembly, including the rotary shaft (1) rotated by driving source, the cutting leaf docked with rotary shaft (1)
Piece (2), chopping disk (4), the chopping disk (4) are equipped with cutting rod (5), and the end of the cut-off blade (2) is equipped with cutting edge
(3), the cutting edge (3) can be intermeshed with cutting rod (5) to cut sundries, it is characterised in that:
The cut-off blade (2) is equipped with movable axis (6), and movable axis (6) sliding is socketed on rotary shaft (1) end, described
It is connected between movable axis (6) end and rotary shaft (1) tension spring (7), the tension spring (7) is used for cut-off blade
(2) it is pulled toward away from chopping disk (4) side；
The rotary shaft (1) is equipped with actuator (8), is connected with driving member between the actuator (8) and movable axis (6)
(11)；
Actuator (8) power transmission is to driving member (11), and then driving member (11) driving movable axis (6) is along rotary shaft (1)
Carry out axial reciprocating stretching motion.
2. floating type cutting assembly according to claim 1, it is characterised in that: the actuator (8) includes being fixed in rotation
The drive disk (9) of shaft (1), disk of the drive disk (9) close to chopping disk (4) are equipped with several drivings protrusions (10), if
It is dry to drive raised (10) with the circumferentially array spacings distribution of the axle center of rotary shaft (1)；
The driving member (11) includes the drive rod (12) for being fixed in movable axis (6), and the drive rod (12) deviates from movable axis (6)
Rod end and drive disk (9) offset always close to the disk of chopping disk (4), when drive rod (12) rod end and drive raised (10)
When offseting, drive rod (12) will drive cut-off blade (2) and be moved toward chopping disk (4) direction.
3. floating type cutting assembly according to claim 2, it is characterised in that: the drive rod (12) deviates from movable axis
(6) rod end is equipped with rolling element (13).
4. floating type cutting assembly according to claim 2, it is characterised in that: the middle part arch for driving raised (10)
It rises, and drives the height on both sides of raised (10) to gradually reduce to chopping disk (4) disk and flush.
5. floating type cutting assembly according to claim 2, it is characterised in that: the cut-off blade (2) is equipped with sawtooth
Item (14), the Saw blade (14) include several toothed segments (15), and several toothed segments (15) are along cut-off blade (2), chopping disk (4)
Orientation carry out mutually sliding socket；
The chopping disk (4) is equipped with annular groove (16), and Saw blade (14) the end sliding is connected to annular groove (16)
It is interior.
6. floating type cutting assembly according to claim 5, it is characterised in that: be equipped with elastic force bullet in the Saw blade (14)
Spring (17), the elastic spring (17) is for driving toothed segment (15) mutually to slip off and being supported in cut-off blade (2), chopping disk
(4) between.
7. a kind of water pump, it is characterised in that: including floating type cutting assembly as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811126321.0A CN109340173B (en) | 2018-09-26 | 2018-09-26 | Water pump and floating cutting assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811126321.0A CN109340173B (en) | 2018-09-26 | 2018-09-26 | Water pump and floating cutting assembly thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109340173A true CN109340173A (en) | 2019-02-15 |
| CN109340173B CN109340173B (en) | 2020-06-26 |
Family
ID=65306561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811126321.0A Active CN109340173B (en) | 2018-09-26 | 2018-09-26 | Water pump and floating cutting assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340173B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159551A (en) * | 2019-06-12 | 2019-08-23 | 华南泵业(赣州)有限公司 | A kind of multistage efficient submersible sewage pump of cutting |
| CN114294237A (en) * | 2021-12-24 | 2022-04-08 | 汪亮忠 | Anti-blocking sewage pump capable of stably circulating |
| CN114370405A (en) * | 2022-01-12 | 2022-04-19 | 大福泵业有限公司 | Circulation type submersible sewage pump with acceleration |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4423150C1 (en) * | 1994-07-04 | 1996-01-18 | Orpu Gmbh | Pump for waste water system |
| CN201232653Y (en) * | 2008-08-04 | 2009-05-06 | 张强 | Diving cutting dredge pump |
| CN205744561U (en) * | 2016-06-22 | 2016-11-30 | 张文波 | Cutting pump sewage dirt cutter plate |
| CN206708071U (en) * | 2017-04-21 | 2017-12-05 | 江苏京川水设备有限公司 | cutting and grinding device |
| CN107514367A (en) * | 2017-09-30 | 2017-12-26 | 浙江固达泵业有限公司 | One kind cutting sewage/waste electrical submersible pump |
-
2018
- 2018-09-26 CN CN201811126321.0A patent/CN109340173B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4423150C1 (en) * | 1994-07-04 | 1996-01-18 | Orpu Gmbh | Pump for waste water system |
| CN201232653Y (en) * | 2008-08-04 | 2009-05-06 | 张强 | Diving cutting dredge pump |
| CN205744561U (en) * | 2016-06-22 | 2016-11-30 | 张文波 | Cutting pump sewage dirt cutter plate |
| CN206708071U (en) * | 2017-04-21 | 2017-12-05 | 江苏京川水设备有限公司 | cutting and grinding device |
| CN107514367A (en) * | 2017-09-30 | 2017-12-26 | 浙江固达泵业有限公司 | One kind cutting sewage/waste electrical submersible pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159551A (en) * | 2019-06-12 | 2019-08-23 | 华南泵业(赣州)有限公司 | A kind of multistage efficient submersible sewage pump of cutting |
| CN114294237A (en) * | 2021-12-24 | 2022-04-08 | 汪亮忠 | Anti-blocking sewage pump capable of stably circulating |
| CN114370405A (en) * | 2022-01-12 | 2022-04-19 | 大福泵业有限公司 | Circulation type submersible sewage pump with acceleration |
| CN114370405B (en) * | 2022-01-12 | 2023-10-27 | 大福泵业有限公司 | Accelerating circulation type submersible sewage pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109340173B (en) | 2020-06-26 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200602 Address after: 211299 Southern District of Lishui District Economic Development Zone, Jiangsu, Nanjing Applicant after: Nanjing Youfu Pump Co.,Ltd. Address before: Huangyan District of Taizhou city Zhejiang province 318020 Jiangkou Street No. 208 Applicant before: Xing Yijun |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 211299 South Zone of Lishui Economic Development Zone, Nanjing, Jiangsu Patentee after: Youfu Pump Group Co.,Ltd. Address before: 211299 South Zone of Lishui Economic Development Zone, Nanjing, Jiangsu Patentee before: Nanjing Youfu Pump Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A water pump and its floating cutting component Effective date of registration: 20221031 Granted publication date: 20200626 Pledgee: Jiangsu SINOSURE technology microfinance Co.,Ltd. Pledgor: Youfu Pump Group Co.,Ltd. Registration number: Y2022980020103 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200626 Pledgee: Jiangsu SINOSURE technology microfinance Co.,Ltd. Pledgor: Youfu Pump Group Co.,Ltd. Registration number: Y2022980020103 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |