CN107165970A - Floated valve block mends oil extraction piston structure and its application method - Google Patents
Floated valve block mends oil extraction piston structure and its application method Download PDFInfo
- Publication number
- CN107165970A CN107165970A CN201710512437.7A CN201710512437A CN107165970A CN 107165970 A CN107165970 A CN 107165970A CN 201710512437 A CN201710512437 A CN 201710512437A CN 107165970 A CN107165970 A CN 107165970A
- Authority
- CN
- China
- Prior art keywords
- valve block
- oil extraction
- piston
- repairing
- holding tank
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/3415—Special valve constructions; Shape or construction of throttling passages characterised by comprising plastics, elastomeric or porous elements
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
Oil extraction piston structure and its application method are mended the invention discloses a kind of floated valve block, the structure includes mending oil extraction piston, oil extraction valve block group and repairing valve block group；The end for mending oil extraction piston is embedded with the first holding tank, and another end for mending oil extraction piston is embedded with the second holding tank, and oil extraction valve block group is arranged in the first holding tank, and repairing valve block group is arranged in the second holding tank；It is provided with for the shift motion to oil extraction valve block group be provided between repairing valve block group at the first spacing spring, the notch of the second holding tank between oil extraction valve block at the notch of first holding tank and carries out spacing second spring for the shift motion to oil extraction valve block group.The yielding impaired problem of valve block is solved present invention employs the design of floated valve block well, it is ensured that the service life of damper, achieve good effect.
Description
Technical field
Mend oil extraction piston structure the present invention relates to damper technical field, more particularly to a kind of floated valve block and its use
Method.
Background technology
In general, damper is designed to support the weight of vehicle body and suppresses and prevent vibration from road surface transmission
To vehicle body, help to improve the comfort taken, and protect the loading goods and various parts of vehicle.
Such damper includes the cylinder body filled with oil, is connected to the reciprocating piston rod of vehicle body and is connected to work
The piston valve of stopper rod lower end and cylinder body activity and control work oil.
Valve block of the piston of above-mentioned this structure in it is easy to run into the impaired problem of deformation, in turn results in shortening damping
The service life of device.
The content of the invention
For weak point present in above-mentioned technology, the present invention provide a kind of floated valve block mend oil extraction piston structure and
Its application method, solves the yielding impaired problem of valve block, it is ensured that the service life of damper, achieves good effect
Really.
To achieve the above object, a kind of floated valve block benefit oil extraction piston structure of present invention offer, including benefit oil extraction piston,
Oil extraction valve block group and repairing valve block group；The end for mending oil extraction piston is embedded with the first holding tank, the benefit oil extraction piston
Another end be embedded with the second holding tank, the oil extraction valve block group is arranged in the first holding tank, the repairing valve block group peace
In the second holding tank；It is provided with the notch of first holding tank between oil extraction valve block for oil extraction valve block group
Shift motion be provided with spacing the first spring, the notch of second holding tank between repairing valve block group for pair
The shift motion of oil extraction valve block group carries out spacing second spring；
Multiple oil extractions below oil extraction valve block group are provided with the bottom land of first holding tank for mending oil extraction piston
Hole, and each outage is communicated with the second holding tank；Multiple fixed columns, each fixed column are provided with the benefit oil extraction piston
The top drain oil that is more than the diameter of outage for diameter and extends at the notch of the first holding tank；Under each fixed column
Side is through repairing valve block group and is repairing hole, and the outage an end with repairing hole in same level；
When repairing hole and outage are turned on and off, the oil extraction valve block group and repairing valve block group mended in oil extraction piston are all located
In plane closed state.
Wherein, piston locating pad, the two ends connection of first spring are fixed with the notch of first holding tank
Between piston locating pad and oil extraction valve block group.
Wherein, piston spacer, the two ends connection of the second spring are provided with the notch of second holding tank
Between piston spacer and repairing valve block group.
Wherein, the structure also includes support bar and supporting plate, and the supporting plate is located at the lower section of repairing valve block group, the branch
One end of strut is fixedly connected with supporting plate, and the other end of the support bar is sequentially passed through after oil extraction valve block group, the first spring
It is fixedly connected with the inside of piston locating pad.
Wherein, the repairing valve block group is made up of multiple repairing valve blocks stacked gradually, and the oil extraction valve block group is by multiple
The oil extraction valve block composition stacked gradually.
Wherein, the first holding tank inside dimension is less than the inside dimension size of the second holding tank, and the Fill valve
The diameter of piece is more than the diameter of oil extraction valve block.
Wherein, the diameter in each repairing hole is more than the diameter of outage and less than bore dia of draining the oil.
Wherein, interior recessed position is socketed in piston guide band in the middle part of the inwall for mending oil extraction piston.
To achieve the above object, the present invention also provides the application method that a kind of floated valve block mends oil extraction piston, this method
For：
When mending oil extraction descent of piston, in the presence of oil pressure, hydraulic oil is discharged out of multiple outages, and is ejected after discharge
Oil extraction valve block；Hydraulic oil is discharged out of multiple drain oils after the ejection of oil extraction valve block, and then realization is drained the oil；
When mending oil extraction piston stroking upward, the direction of oil pressure is discharged towards repairing valve block, and repairing valve block in the presence of oil pressure；
And repairing valve block is ejected after discharge, and repairing is carried out by repairing hole.
The beneficial effects of the invention are as follows：Compared with prior art, the floated valve block that the present invention is provided mends oil extraction piston knot
Structure and its application method, the structure are mainly made up of benefit oil extraction piston, oil extraction valve block group and repairing valve block group, and outage,
The improved design of drain oil and repairing hole site, all repairing holes and outage are all located under same plane；When repairing hole with
Outage, when being turned on and off, the valve block in piston is all in plane closed state, and no matter cylinder body is interior produces great oil pressure,
It is impaired all without the valve block deformation caused because pressure is excessive in piston；Valve block will not also produce displacement simultaneously, in oil pressure effect
Cause that repairing valve block and the unlatching of oil extraction valve block, closing are very sensitive under power；And valve block is opened and closed and produced completely by inner casing
Oil pressure and determine, the design for employing floated valve block solves the yielding impaired problem of valve block well, it is ensured that subtract
The service life of device is shaken, good effect is achieved.Meanwhile, repairing is rapid, and no matter piston is gone to more than any position, piston
All it is full oily phenomenon.
Brief description of the drawings
Fig. 1 mends the sectional view of oil extraction piston structure for the floated valve block of the present invention；
Fig. 2 is the first angle stereogram of benefit oil extraction piston in the present invention；
Fig. 3 is the second angle stereogram of benefit oil extraction piston in the present invention.
Main element symbol description is as follows：
10th, mend oil extraction piston 11, oil extraction valve block group 12, repairing valve block group 13, the first spring 14, second spring 15,
Outage 16, fixed column 17, piston locating pad 18, piston spacer 19, support bar 20, supporting plate 21, piston guide band
101st, the first holding tank 102, the second holding tank 111, repairing valve block 121, oil extraction valve block 161, drain oil 162, repairing
Hole.
Embodiment
In order to more clearly state the present invention, the present invention is further described below in conjunction with the accompanying drawings.
Fig. 1-3 are referred to, the floated valve block that the present invention is provided mends oil extraction piston structure, including mends oil extraction piston 10, row
Fuel tap piece group 11 and repairing valve block group 12；The end for mending oil extraction piston is embedded with the first holding tank 101, the benefit oil extraction
Another end of piston is embedded with the second holding tank 102, and the oil extraction valve block group is arranged in the first holding tank, the Fill valve
Piece group is arranged in the second holding tank；It is provided with the notch of first holding tank between oil extraction valve block for draining valve
The shift motion of piece group set at the first spacing spring 13, the notch of second holding tank between repairing valve block group
Have and carry out spacing second spring 14 for the shift motion to oil extraction valve block group；
Multiple oil extractions below oil extraction valve block group are provided with the bottom land of first holding tank for mending oil extraction piston
Hole 15, and each outage is communicated with the second holding tank；Multiple fixed columns 16, Mei Gegu are provided with the benefit oil extraction piston
The top of fixed column is the drain oil 161 that diameter is more than the diameter of outage and extended at the notch of the first holding tank；It is each solid
The lower section of fixed column is through repairing valve block group and is repairing hole 162, and the outage an end with repairing hole in same water
Plane；
When repairing hole and outage are turned on and off, the oil extraction valve block group and repairing valve block group mended in oil extraction piston are all located
In plane closed state.
In the present embodiment, piston locating pad 17 is fixed with the notch of first holding tank, first spring
Two ends are connected between piston locating pad and oil extraction valve block group.Piston spacer is provided with the notch of second holding tank
18, two ends of the second spring are connected between piston spacer and repairing valve block group.Pass through piston locating pad and piston
Spacer can realize the positioning to mending oil extraction piston, and coordinate the first spring and second spring, can be to mending the movement of oil extraction piston
Carry out spacing.
In the present embodiment, the structure also includes support bar 19 and supporting plate 20, and the supporting plate is located at repairing valve block group
Lower section, one end of the support bar is fixedly connected with supporting plate, and the other end of the support bar sequentially passes through oil extraction valve block
With being fixedly connected on the inside of piston locating pad after group, the first spring.Fixed column is evenly distributed on the outside of support bar, thus protects
The uniformity of repairing and oil extraction is demonstrate,proved, and then ensures that valve block is not in shift phenomenon in motion process.
In the present embodiment, the repairing valve block group 11 is made up of multiple repairing valve blocks 121 stacked gradually, the oil extraction
Valve block group is made up of multiple oil extraction valve blocks 111 stacked gradually.Certainly the quantity of valve block is not limited to.
In the present embodiment, the first holding tank inside dimension is less than the inside dimension size of the second holding tank, and institute
The diameter for stating repairing valve block is more than the diameter of oil extraction valve block.The diameter in each repairing hole, which is more than the diameter of outage and is less than, drains the oil
Bore dia.Recessed position in the middle part of the inwall of oil extraction piston is mended to be socketed in piston guide band 21.
To achieve the above object, the present invention also provides the application method that a kind of floated valve block mends oil extraction piston, this method
For：
When mending oil extraction descent of piston, in the presence of oil pressure, hydraulic oil is discharged out of multiple outages, and is ejected after discharge
Oil extraction valve block；Hydraulic oil is discharged out of multiple drain oils after the ejection of oil extraction valve block, and then realization is drained the oil；
When mending oil extraction piston stroking upward, the direction of oil pressure is discharged towards repairing valve block, and repairing valve block in the presence of oil pressure；
And repairing valve block is ejected after discharge, and repairing is carried out by repairing hole.
Compared to the situation of prior art, the floated valve block that the present invention is provided mends oil extraction piston structure and its user
Method, the structure is mainly made up of benefit oil extraction piston, oil extraction valve block group and repairing valve block group, and outage, drain oil and repairing
The improved design in hole site, all repairing holes and outage are all located under same plane；When repairing hole and outage, open or
During closing, the valve block in piston is all in plane closed state, and no matter cylinder body is interior produces great oil pressure, all without due to pressure
The excessive valve block deformation caused in piston is impaired；Valve block will not also produce displacement simultaneously, and Fill valve is caused under oil pressure active force
Piece is opened with oil extraction valve block, closing is very sensitive；And valve block is opened and closed and determined completely by the oil pressure that inner casing is produced, and is adopted
The yielding impaired problem of valve block is solved with the design of floated valve block well, it is ensured that the service life of damper,
Achieve good effect.Meanwhile, repairing is rapid, and it is all full oily phenomenon that no matter piston, which is gone to more than any position, piston,.
Disclosed above is only several specific embodiments of the present invention, but the present invention is not limited to this, any ability
What the technical staff in domain can think change should all fall into protection scope of the present invention.
Claims (9)
1. a kind of floated valve block mends oil extraction piston structure, it is characterised in that including mending oil extraction piston, oil extraction valve block group and repairing
Valve block group；The end for mending oil extraction piston is embedded with the first holding tank, and another end of the benefit oil extraction piston is embedded with
Second holding tank, the oil extraction valve block group is arranged in the first holding tank, and the repairing valve block group is arranged in the second holding tank；
It is provided with the notch of first holding tank between oil extraction valve block spacing for the shift motion progress to oil extraction valve block group
The first spring, be provided between repairing valve block group for the movement to oil extraction valve block group at the notch of second holding tank
Stroke carries out spacing second spring；
Multiple outages below oil extraction valve block group are provided with the bottom land of first holding tank for mending oil extraction piston, and
Each outage is communicated with the second holding tank；Be provided with multiple fixed columns in the benefit oil extraction piston, each fixed column it is upper
The drain oil that side is more than the diameter of outage and extended at the notch of the first holding tank for diameter；Passed through below each fixed column
Wear repairing valve block group and be repairing hole, and the outage an end with repairing hole in same level；
When repairing hole and outage are turned on and off, the oil extraction valve block group and repairing valve block group in oil extraction piston are mended all in flat
Face closure state.
2. floated valve block according to claim 1 mends oil extraction piston structure, it is characterised in that first holding tank
Piston locating pad is fixed with notch, two ends of first spring are connected between piston locating pad and oil extraction valve block group.
3. floated valve block according to claim 1 mends oil extraction piston structure, it is characterised in that second holding tank
Piston spacer is provided with notch, two ends of the second spring are connected between piston spacer and repairing valve block group.
4. floated valve block according to claim 2 mends oil extraction piston structure, it is characterised in that the structure also includes support
Bar and supporting plate, the supporting plate are located at the lower section of repairing valve block group, and one end of the support bar is fixedly connected with supporting plate, and
The other end of the support bar is sequentially passed through after oil extraction valve block group, the first spring with being fixedly connected on the inside of piston locating pad.
5. floated valve block according to claim 1 mends oil extraction piston structure, it is characterised in that the repairing valve block group by
Multiple repairing valve block compositions stacked gradually, the oil extraction valve block group is made up of multiple oil extraction valve blocks stacked gradually.
6. floated valve block according to claim 5 mends oil extraction piston structure, it is characterised in that in first holding tank
Portion's size is less than the inside dimension size of the second holding tank, and diameter of the diameter more than oil extraction valve block of the repairing valve block.
7. floated valve block according to claim 1 mends oil extraction piston structure, it is characterised in that the diameter in each repairing hole
More than outage diameter and less than draining the oil bore dia.
8. floated valve block according to claim 1 mends oil extraction piston structure, it is characterised in that the benefit oil extraction piston
Recessed position is socketed in piston guide band in the middle part of inwall.
9. a kind of floated valve block mends the application method of oil extraction piston, it is characterised in that this method is：
When mending oil extraction descent of piston, in the presence of oil pressure, hydraulic oil is discharged out of multiple outages, and ejects oil extraction after discharge
Valve block；Hydraulic oil is discharged out of multiple drain oils after the ejection of oil extraction valve block, and then realization is drained the oil；
When mending oil extraction piston stroking upward, the direction of oil pressure is discharged towards repairing valve block, and repairing valve block in the presence of oil pressure；And row
Repairing valve block is ejected after going out, and repairing is carried out by repairing hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710512437.7A CN107165970B (en) | 2017-06-29 | 2017-06-29 | Suspended valve plate oil supplementing and draining piston structure and use method thereof |
| PCT/CN2017/106958 WO2019000718A1 (en) | 2017-06-29 | 2017-10-20 | Suspended valve plate oil replenishing/discharging piston structure and use method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710512437.7A CN107165970B (en) | 2017-06-29 | 2017-06-29 | Suspended valve plate oil supplementing and draining piston structure and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107165970A true CN107165970A (en) | 2017-09-15 |
| CN107165970B CN107165970B (en) | 2023-06-27 |
Family
ID=59826399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710512437.7A Active CN107165970B (en) | 2017-06-29 | 2017-06-29 | Suspended valve plate oil supplementing and draining piston structure and use method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107165970B (en) |
| WO (1) | WO2019000718A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019000718A1 (en) * | 2017-06-29 | 2019-01-03 | 黄永宁 | Suspended valve plate oil replenishing/discharging piston structure and use method therefor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6116388A (en) * | 1998-05-07 | 2000-09-12 | Delphi Technologies, Inc. | Shock absorber |
| US20050051395A1 (en) * | 2003-09-05 | 2005-03-10 | Stefan Deferme | Fulcrum blow off valve for use in a shock absorber |
| CN202048130U (en) * | 2011-04-29 | 2011-11-23 | 芜湖艾科汽车技术有限公司 | Compression valve of shock absorber |
| CN203656026U (en) * | 2013-11-14 | 2014-06-18 | 浙江金波减震器制造有限公司 | Shock absorber bottom valve assembly |
| CN203656017U (en) * | 2013-11-14 | 2014-06-18 | 浙江金波减震器制造有限公司 | Shock absorber piston assembly |
| CN204284297U (en) * | 2014-11-25 | 2015-04-22 | 浙江西格迈汽车部件有限公司 | A kind of resistance adjustable vibration damper |
| CN205978241U (en) * | 2016-08-30 | 2017-02-22 | 株洲中车时代装备技术有限公司 | A bottom valve structure for hydraulic shock absorber |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4809829A (en) * | 1987-12-08 | 1989-03-07 | Maremont Corporation | Vehicular shock absorber and piston comfort valving |
| CN201377536Y (en) * | 2009-04-23 | 2010-01-06 | 上海萧凯减震器有限公司 | Piston structure of shock absorber |
| CN203297474U (en) * | 2013-05-30 | 2013-11-20 | 慈溪市正大车业有限公司 | Piston structure of shock absorber |
| CN205908680U (en) * | 2016-07-07 | 2017-01-25 | 宁波宁江粉末冶金有限公司 | Shock absorber piston |
| CN107100955B (en) * | 2017-06-29 | 2023-02-03 | 黄永宁 | Self-adjusting hydraulic shock absorber and adjusting method thereof |
| CN207064547U (en) * | 2017-06-29 | 2018-03-02 | 黄永宁 | Floated valve block mends oil extraction piston structure |
| CN107165970B (en) * | 2017-06-29 | 2023-06-27 | 黄永宁 | Suspended valve plate oil supplementing and draining piston structure and use method thereof |
-
2017
- 2017-06-29 CN CN201710512437.7A patent/CN107165970B/en active Active
- 2017-10-20 WO PCT/CN2017/106958 patent/WO2019000718A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6116388A (en) * | 1998-05-07 | 2000-09-12 | Delphi Technologies, Inc. | Shock absorber |
| US20050051395A1 (en) * | 2003-09-05 | 2005-03-10 | Stefan Deferme | Fulcrum blow off valve for use in a shock absorber |
| CN202048130U (en) * | 2011-04-29 | 2011-11-23 | 芜湖艾科汽车技术有限公司 | Compression valve of shock absorber |
| CN203656026U (en) * | 2013-11-14 | 2014-06-18 | 浙江金波减震器制造有限公司 | Shock absorber bottom valve assembly |
| CN203656017U (en) * | 2013-11-14 | 2014-06-18 | 浙江金波减震器制造有限公司 | Shock absorber piston assembly |
| CN204284297U (en) * | 2014-11-25 | 2015-04-22 | 浙江西格迈汽车部件有限公司 | A kind of resistance adjustable vibration damper |
| CN205978241U (en) * | 2016-08-30 | 2017-02-22 | 株洲中车时代装备技术有限公司 | A bottom valve structure for hydraulic shock absorber |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019000718A1 (en) * | 2017-06-29 | 2019-01-03 | 黄永宁 | Suspended valve plate oil replenishing/discharging piston structure and use method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019000718A1 (en) | 2019-01-03 |
| CN107165970B (en) | 2023-06-27 |
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