CN113027855A - Hydraulic oil cylinder with protective cover - Google Patents

Hydraulic oil cylinder with protective cover Download PDF

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Publication number
CN113027855A
CN113027855A CN202110251469.2A CN202110251469A CN113027855A CN 113027855 A CN113027855 A CN 113027855A CN 202110251469 A CN202110251469 A CN 202110251469A CN 113027855 A CN113027855 A CN 113027855A
Authority
CN
China
Prior art keywords
cylinder
fixedly connected
cover
cylinder body
protective cover
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.)
Pending
Application number
CN202110251469.2A
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Chinese (zh)
Inventor
徐杰
张艺峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Dingtu Hydraulic Equipment Co ltd
Original Assignee
Anhui Dingtu Hydraulic Equipment Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Dingtu Hydraulic Equipment Co ltd filed Critical Anhui Dingtu Hydraulic Equipment Co ltd
Priority to CN202110251469.2A priority Critical patent/CN113027855A/en
Publication of CN113027855A publication Critical patent/CN113027855A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20Other details, e.g. assembly with regulating devices
    • F15B15/22Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/226Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Actuator (AREA)

Abstract

The invention relates to the technical field of hydraulic cylinder equipment, and discloses a hydraulic cylinder with a protective cover, which comprises a cylinder body, wherein a cylinder cover is fixedly arranged at the top of the cylinder body, a piston rod is movably sleeved on the inner surface of the cylinder cover, the bottom end of the piston rod penetrates through the cylinder cover and extends into the cylinder body, a piston head is fixedly connected with the bottom end of the piston rod, a fixed plate is fixedly sleeved on the outer surface of the piston rod, the protective cover is fixedly connected with the bottom surface of the fixed plate, and a side groove is formed in. This take hydraulic cylinder of safety cover cup joints the fixed plate through the external fixed surface at the piston rod to at the bottom surface fixed connection safety cover of fixed plate, make safety cover and cylinder cap side activity cup joint, the smooth chamber that the cooperation safety cover bottom surface was seted up, and make the spring in the smooth chamber be connected with the slide, when making safety cover up-and-down motion keep the piston rod sealed, avoid influencing No. one pipe, the safety cover protection is effectual, and the mounted position is reasonable, excellent in use effect.

Description

Hydraulic oil cylinder with protective cover
Technical Field
The invention relates to the technical field of hydraulic cylinder equipment, in particular to a hydraulic cylinder with a protective cover.
Background
The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the effective area; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device. The buffer device and the exhaust device are determined according to specific application occasions, other devices are indispensable, the structural form of the hydraulic cylinder is various, and the classification method is also various: the motion mode can be divided into a linear reciprocating motion type and a rotary swinging type; the hydraulic pressure can be divided into a single-acting type and a double-acting type according to the action condition of the hydraulic pressure; according to the structural form, the device can be divided into a piston type, a plunger type, a multi-stage telescopic sleeve type, a rack and pinion type and the like; the device can be divided into a pull rod, an earring, a bottom foot, a hinge shaft and the like according to the installation form; the pressing force grades can be 16MPa, 25MPa, 31.5MPa and the like.
The existing hydraulic oil cylinder has the advantages that in the using process, because the piston rod of the hydraulic cylinder reciprocates up and down in the operation process and is in close contact with hydraulic oil, when the oil scraper ring is abraded, part of lubricating oil is attached to the surface of the piston rod and is taken out of the cylinder body, the hydraulic oil has certain viscosity, and dust in the air is adsorbed after the oil scraper ring is leaked, so that dust and impurities are accumulated on the surface of the piston rod, pressure oil is polluted in the continuous operation process, the oil scraper ring is further abraded, and the problem exists in the using process.
In addition, current hydraulic cylinder, in the use, because the piston rod accomplishes extruding of internal pressure oil at the motion process, the piston head of connecting on the actual operation in-process piston rod collides with the extrusion groove of cylinder body internal surface for piston head body intensity weakens gradually, influences the life of piston head, lacks effectual buffering effect, and the result of use is not good.
On the other hand, current hydraulic cylinder, in the use, because the piston head makes pressure oil friction overheat coking in the piston head motion process in the inside reciprocating motion in-process of cylinder body with cylinder body inner wall contact friction, and then makes the inside burnt sediment that appears of cylinder body, need dismantle the pneumatic cylinder during clearance, the dismantlement process is complicated, and the degree of difficulty is big, and the result of use is poor.
Disclosure of Invention
The invention provides a hydraulic oil cylinder with a protective cover, which has the advantages of sealing and protecting a piston rod, buffering the impact of a piston head and facilitating the cleaning of coke residues in a cylinder body, and solves the problems in the background art.
The invention provides the following technical scheme: the utility model provides a take hydraulic cylinder of safety cover, includes the cylinder body, the top fixed mounting of cylinder body has the cylinder cap, the internal surface activity of cylinder cap has cup jointed the piston rod, the bottom of piston rod passes the cylinder cap and extends to the inside and the fixedly connected with piston head of cylinder body, the external fixed surface of piston rod has cup jointed the fixed plate the bottom surface fixedly connected with safety cover of fixed plate, the side channel has been seted up to the side of safety cover, the sliding chamber is seted up to the inside of safety cover, the inside fixedly connected with spring in sliding chamber, the terminal surface fixedly connected with slide of spring, a hole and No. two holes have been seted up respectively to the side of cylinder body, the fixed intercommunication has No. one pipe and No. two pipes respectively in the terminal surface in a hole and No. two holes, the annular has been seted up to the medial surface.
Preferably, the width of the side groove is larger than the diameter of the first pipe, and the inner surface of the side groove is movably clamped with the first pipe.
Preferably, the side of cylinder body has seted up the mounting groove, the internal surface movable mounting of mounting groove has sealed arc board, the top surface fixedly connected with mounting panel of sealed arc board.
Preferably, the side of the cylinder body is provided with a threaded hole, the top surface of the mounting plate is movably sleeved with a bolt, and the bottom end of the bolt penetrates through the mounting plate and is in threaded sleeve connection with the threaded hole.
Preferably, the bottom surface fixedly connected with connecting rod of fixed plate, the bottom surface fixedly connected with fly leaf of connecting rod, the top surface fixedly connected with sleeve pipe of cylinder cap, sheathed tube inside fixedly connected with auxiliary spring.
Preferably, the bottom surface of the piston head is fixedly connected with an impact head, the bottom surface of the inner surface of the cylinder body is provided with a circular groove, the inner surface of the circular groove is fixedly connected with a backing plate, and the inner end of the second hole is communicated with the circular groove.
The invention has the following beneficial effects:
1. this take hydraulic cylinder of safety cover cup joints the fixed plate through the external fixed surface at the piston rod to at the bottom surface fixed connection safety cover of fixed plate, make safety cover and cylinder cap side activity cup joint, the smooth chamber that the cooperation safety cover bottom surface was seted up, and make the spring in the smooth chamber be connected with the slide, when making safety cover up-and-down motion keep the piston rod sealed, avoid influencing No. one pipe, the safety cover protection is effectual, and the mounted position is reasonable, excellent in use effect.
2. This take hydraulic cylinder of safety cover through the top surface fixed connection sleeve pipe at the cylinder cap to fixedly connected with auxiliary spring in the sleeve pipe, make the fixed plate bottom surface add the dead lever, utilize the fixed plate to cup joint with the sleeve pipe and extrude auxiliary spring, utilize auxiliary spring's elasticity to realize the motion buffering, and the newly-increased backing plate of circular slot on the cooperation cylinder body internal surface combines auxiliary spring's elasticity buffering, realizes the collision protection of piston head.
3. This take hydraulic cylinder of safety cover has seted up the mounting groove through the true face at the cylinder body to cup joint sealed arc board at the internal surface activity of mounting groove, utilize sealed arc board to realize the packing of mounting groove, when the clean cylinder body of needs, the bolt of screwing out, and outwards take out sealed arc board, carry out the cleaning process of inside burnt sediment when realizing adjusting the position of piston head, it is convenient to use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a bottom view of the structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the structure of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3;
FIG. 5 is an enlarged view of the structure at B in FIG. 3;
fig. 6 is a schematic view of the structural cylinder body of the invention.
In the figure: 1. a cylinder body; 2. a piston rod; 3. a piston head; 4. a cylinder cover; 5. a fixing plate; 6. a protective cover; 7. a first hole; 8. a second hole; 9. a first pipe; 10. a second pipe; 11. a slide chamber; 12. a spring; 13. a slide plate; 14. mounting grooves; 15. a threaded hole; 16. sealing the arc plate; 17. mounting a plate; 18. a bolt; 19. a striking head; 20. a circular groove; 21. a base plate; 22. a sleeve; 23. an auxiliary spring; 24. a connecting rod; 25. a movable plate; 26. a ring groove; 27. an oil scraper ring; 28. and a side groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a hydraulic cylinder with a protective cover includes a cylinder body 1, a cylinder cover 4 is fixedly mounted at the top of the cylinder body 1, a piston rod 2 is movably sleeved on the inner surface of the cylinder cover 4, the bottom end of the piston rod 2 penetrates through the cylinder cover 4 and extends into the cylinder body 1 and is fixedly connected with a piston head 3, a bottom surface of a fixed plate 5 and a fixed plate 5 are fixedly sleeved on the outer surface of the piston rod 2 and is fixedly connected with the protective cover 6, a side groove 28 is formed in the side surface of the protective cover 6, a sliding cavity 11 is formed in the protective cover 6, a spring 12 is fixedly connected in the sliding cavity 11, a sliding plate 13 is fixedly connected to the end surface of the spring 12, a first hole 7 and a second hole 8 are respectively formed in the side surface of the cylinder body 1, a first pipe 9 and a second pipe 10 are respectively fixedly communicated with the end surfaces of the first hole 7 and.
Wherein, the width of side groove 28 is greater than the diameter of a pipe 9, and the internal surface of side groove 28 and a pipe 9 activity joint guarantee that a pipe 9 can not be collided the separation by safety cover 6, and pop out from smooth chamber 11 through slide 13 and realize totally enclosed.
Wherein, mounting groove 14 has been seted up to the side of cylinder body 1, and the internal surface movable mounting of mounting groove 14 has sealed arc board 16, and the top surface fixedly connected with mounting panel 17 of sealed arc board 16 utilizes cup jointing of sealed arc board 16 and mounting groove 14, realizes the sealed of mounting groove 14, and guarantees that the interior cambered surface of sealed arc board 16 is unanimous with the medial surface cambered surface of cylinder body 1.
Wherein, threaded hole 15 is seted up to the side of cylinder body 1, and the top surface activity of mounting panel 17 has cup jointed bolt 18, and the bottom of bolt 18 passes mounting panel 17 and cup joints with threaded hole 15 screw thread, utilizes the screw thread of bolt 18 and threaded hole 15 to cup joint for mounting panel 17 is stably installed on the side of cylinder body 1.
Wherein, the bottom surface fixedly connected with connecting rod 24 of fixed plate 5, the bottom surface fixedly connected with fly leaf 25 of connecting rod 24, the top surface fixedly connected with sleeve pipe 22 of cylinder cap 4, the inside fixedly connected with auxiliary spring 23 of sleeve pipe 22 utilizes the elasticity of auxiliary spring 23 for realize the buffering when fly leaf 25 embolias in sleeve pipe 22, thereby slows down the impact force of piston head 3.
Wherein, the bottom surface fixedly connected with of piston head 3 strikes the head 19, and the circular slot 20 has been seted up to the bottom surface of cylinder body 1 internal surface, and the internal fixed surface of circular slot 20 is connected with backing plate 21, and the inner of No. two holes 8 is linked together with circular slot 20, utilizes circular slot 20 and backing plate 21 for possess the cushioning effect when striking the head 19 contact backing plate 21, and pressure oil flows out through No. two holes 8.
According to the working principle, pressure oil enters the cylinder body 1 through the first hole 7 and then pushes the piston head 3 to move, so that the piston head 3 drives the piston rod 2 to reciprocate, the fixed plate 5 is driven to move upwards when the piston rod 2 moves upwards, the movable plate 25 at the bottom of the fixed plate 5 slides out of the sleeve 22, the auxiliary spring 23 resets, the spring 12 extends, the sliding plate 13 slides out of the sliding cavity 11, the side groove 28 is filled with the sliding plate 13, and the piston rod 2 is always sealed; when the piston head 3 is impacted, the movable plate 25 fills the sleeve 22 and presses the auxiliary spring 23, and the impact head 19 on the bottom surface of the piston head 3 is sprayed with the backing plate 21; when the coke residue is required to be cleaned, the bolt 18 is screwed out, the sealing arc plate 16 is pulled outwards, and the piston head 3 is driven to move by adjusting the piston rod 2, so that the coke residue is pushed and cleaned.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a take hydraulic cylinder of safety cover, includes cylinder body (1), its characterized in that: the cylinder cover (4) is fixedly installed at the top of the cylinder body (1), the piston rod (2) is sleeved on the inner surface of the cylinder cover (4), the bottom end of the piston rod (2) penetrates through the cylinder cover (4) and extends to the inside of the cylinder body (1) and the piston head (3) is fixedly connected with the inside of the cylinder body, the fixed plate (5) is sleeved on the outer surface of the piston rod (2), the protective cover (6) is fixedly connected with the bottom surface of the fixed plate (5), the side groove (28) is formed in the side surface of the protective cover (6), the sliding cavity (11) is formed in the protective cover (6), the spring (12) is fixedly connected with the inside of the sliding cavity (11), the sliding plate (13) is fixedly connected with the end surface of the spring (12), the first hole (7) and the second hole (8) are respectively formed in the side surface of the cylinder body (1), the first hole (7) and the second hole (8) are respectively and fixedly communicated, annular grooves (26) are formed in the inner side face of the cover plate (4), and oil scraping rings (27) are movably sleeved on the inner surface of each sliding groove (26).
2. The hydraulic cylinder with the protective cover as claimed in claim 1, characterized in that: the width of side groove (28) is greater than the diameter of a pipe (9), the internal surface of side groove (28) and a pipe (9) activity joint.
3. The hydraulic cylinder with the protective cover as claimed in claim 1, characterized in that: mounting groove (14) have been seted up to the side of cylinder body (1), the internal surface movable mounting of mounting groove (14) has sealed arc board (16), the top surface fixedly connected with mounting panel (17) of sealed arc board (16).
4. The hydraulic cylinder with the protective cover as claimed in claim 1, characterized in that: threaded holes (15) are formed in the side face of the cylinder body (1), bolts (18) are movably sleeved on the top face of the mounting plate (17), and the bottom ends of the bolts (18) penetrate through the mounting plate (17) and are in threaded sleeve connection with the threaded holes (15).
5. The hydraulic cylinder with the protective cover as claimed in claim 1, characterized in that: the bottom surface fixedly connected with connecting rod (24) of fixed plate (5), the bottom surface fixedly connected with fly leaf (25) of connecting rod (24), the top surface fixedly connected with sleeve pipe (22) of cylinder cap (4), the inside fixedly connected with auxiliary spring (23) of sleeve pipe (22).
6. The hydraulic cylinder with the protective cover as claimed in claim 1, characterized in that: the bottom surface of the piston head (3) is fixedly connected with an impact head (19), the bottom surface of the inner surface of the cylinder body (1) is provided with a circular groove (20), the inner surface of the circular groove (20) is fixedly connected with a backing plate (21), and the inner end of the second hole (8) is communicated with the circular groove (20).
CN202110251469.2A 2021-03-08 2021-03-08 Hydraulic oil cylinder with protective cover Pending CN113027855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110251469.2A CN113027855A (en) 2021-03-08 2021-03-08 Hydraulic oil cylinder with protective cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110251469.2A CN113027855A (en) 2021-03-08 2021-03-08 Hydraulic oil cylinder with protective cover

Publications (1)

Publication Number Publication Date
CN113027855A true CN113027855A (en) 2021-06-25

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Family Applications (1)

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CN202110251469.2A Pending CN113027855A (en) 2021-03-08 2021-03-08 Hydraulic oil cylinder with protective cover

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116658392A (en) * 2023-07-26 2023-08-29 德州学院 Hydraulic cylinder assembly for hydraulic profile control injection equipment and elastic cover processing equipment

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH056204U (en) * 1991-07-05 1993-01-29 ローム株式会社 Dustproof structure of air cylinder
CN1737382A (en) * 2005-09-09 2006-02-22 郝安阶 Dust-proof type hydraulic ram
WO2013140878A1 (en) * 2012-03-21 2013-09-26 カヤバ工業株式会社 Dust seal cover
CN110159611A (en) * 2019-06-24 2019-08-23 杭州先力液压机械有限公司 Smash furnace vehicle cylinder structure
CN211039224U (en) * 2019-11-08 2020-07-17 德玛仕电液技术(苏州)有限公司 Servo hydraulic cylinder device
CN211259203U (en) * 2020-01-05 2020-08-14 山西精凯瑞液压设备有限公司 Hydraulic oil cylinder
CN211852345U (en) * 2019-12-02 2020-11-03 无锡申佳液压科技有限公司 High protection type pneumatic cylinder easy to assemble
CN112081791A (en) * 2020-08-18 2020-12-15 福建省华宝智能科技有限公司 Dustproof rodless cylinder

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH056204U (en) * 1991-07-05 1993-01-29 ローム株式会社 Dustproof structure of air cylinder
CN1737382A (en) * 2005-09-09 2006-02-22 郝安阶 Dust-proof type hydraulic ram
WO2013140878A1 (en) * 2012-03-21 2013-09-26 カヤバ工業株式会社 Dust seal cover
JP2013224732A (en) * 2012-03-21 2013-10-31 Kyb Co Ltd Dust seal cover
CN110159611A (en) * 2019-06-24 2019-08-23 杭州先力液压机械有限公司 Smash furnace vehicle cylinder structure
CN211039224U (en) * 2019-11-08 2020-07-17 德玛仕电液技术(苏州)有限公司 Servo hydraulic cylinder device
CN211852345U (en) * 2019-12-02 2020-11-03 无锡申佳液压科技有限公司 High protection type pneumatic cylinder easy to assemble
CN211259203U (en) * 2020-01-05 2020-08-14 山西精凯瑞液压设备有限公司 Hydraulic oil cylinder
CN112081791A (en) * 2020-08-18 2020-12-15 福建省华宝智能科技有限公司 Dustproof rodless cylinder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116658392A (en) * 2023-07-26 2023-08-29 德州学院 Hydraulic cylinder assembly for hydraulic profile control injection equipment and elastic cover processing equipment
CN116658392B (en) * 2023-07-26 2023-09-29 德州学院 Hydraulic cylinder assembly for hydraulic profile control injection equipment and elastic cover processing equipment

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Application publication date: 20210625