CN113668900A - Strutting arrangement is used in engineering capital construction convenient to adjust - Google Patents
Strutting arrangement is used in engineering capital construction convenient to adjust Download PDFInfo
- Publication number
- CN113668900A CN113668900A CN202010409570.1A CN202010409570A CN113668900A CN 113668900 A CN113668900 A CN 113668900A CN 202010409570 A CN202010409570 A CN 202010409570A CN 113668900 A CN113668900 A CN 113668900A
- Authority
- CN
- China
- Prior art keywords
- loop bar
- electric hydraulic
- hydraulic cylinder
- adjust
- fixed mounting
- 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
Links
- 238000010276 construction Methods 0.000 title claims description 12
- 230000035939 shock Effects 0.000 claims description 11
- 239000006096 absorbing agent Substances 0.000 claims description 10
- 210000002421 cell wall Anatomy 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 8
- 210000003781 tooth socket Anatomy 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/02—Shores or struts; Chocks non-telescopic
Abstract
The invention discloses a supporting device convenient to adjust for engineering infrastructure, which comprises a base, wherein a sleeve is fixedly arranged at the top end of the base, a loop bar is sleeved in the sleeve, a tooth groove is formed in one side of the loop bar, an equipment box is fixedly arranged at the top of one side of the sleeve, rotating shafts are connected to two sides of the inner wall of the equipment box in an inserting mode through embedded bearings, and a Z-shaped crank is fixedly arranged at one end of each rotating shaft. According to the invention, the rotation of the rotating shaft is driven by the installed Z-shaped crank, the rotation of the gear is driven by the rotation of the rotating shaft, the lifting of the loop bar is driven by the gear, the lifting of the first supporting plate and the second supporting plate is driven by the lifting of the loop bar, so that the pouring templates with different heights can be supported conveniently, when the specified height is reached, the bar-shaped tooth block is pushed by the rotation of the rotary button to be meshed with the gear to fix the gear, so that the loop bar is fixed, and meanwhile, the stable support of the loop bar is ensured by the supporting force of the second electric hydraulic cylinder installed inside the sleeve.
Description
Technical Field
The invention relates to the technical field of capital construction engineering, in particular to a supporting device for engineering capital construction, which is convenient to adjust.
Background
The capital construction project refers to the expanded reproduction of fixed assets for development and production of each department of the national economy, namely, the general term of the construction, acquisition and installation work of each department of the national economy for increasing the fixed assets, such as the new construction, reconstruction, extension and recovery works of the projects of roads, railways, bridges, various industrial and civil buildings, and the acquisition, installation and related work of the machines, vehicles and ships, and is called as the basic construction project.
The in-process of current capital construction engineering at the construction, generally through pricking the template, then carry out the pouring of concrete on the surface of template, present formwork support generally constructs the steel pipe through the manual work and supports or builds the support through the plank, the installation and the dismantlement of steel pipe all need a large amount of cost of labor, the bearing structure that the plank was built, the dynamics of supporting is little, the plank takes place to rot easily simultaneously and is difficult for adjusting, influence life, consequently need design a be convenient for the engineering capital construction of adjusting and use strutting arrangement.
Disclosure of Invention
The invention aims to provide a supporting device for engineering infrastructure, which is convenient to adjust, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a supporting device convenient to adjust for engineering infrastructure comprises a base, wherein a sleeve is fixedly mounted at the top end of the base, a sleeve rod is sleeved inside the sleeve, a tooth groove is formed in one side of the sleeve rod, an equipment box is fixedly mounted at the top of one side of the sleeve, a rotating shaft is connected to two sides of the inner wall of the equipment box in an inserting mode through embedded bearings, a Z-shaped crank is fixedly mounted at one end of the rotating shaft, a gear is sleeved in the middle of the rotating shaft and meshed with the tooth groove, second limiting springs are fixedly mounted on two sides of the top end inside the equipment box, a bar-shaped tooth block is fixedly mounted at one end of each of the two second limiting springs, a rotating button is connected to the middle of the top end of the equipment box in a threaded mode, the bottom end of the rotating button is in contact with the middle of the top end of the bar-shaped tooth block, and jacks are formed in four side edges of the top of the sleeve rod, four the inside of jack all alternates and is connected with the inserted bar, four the one end of inserted bar is rotated and is connected with first backup pad, the equal fixed mounting in edge department of first backup pad both sides has a fixed block, two rotate through the bearing of inlaying establishing between the fixed block and be connected with the connecting axle, the surface interlude of connecting axle is equipped with the second backup pad, the spout has been seted up to one side on first backup pad top, the inside sliding connection of spout has the slider, one side cell wall fixed mounting of spout has first electric hydraulic cylinder, first electric hydraulic cylinder's flexible end and one side fixed connection of slider, the top of slider is rotated and is connected with the connecting rod, the one end fixed mounting of connecting rod has the free bearing, the middle part fixed connection of the one end of free bearing and second backup pad bottom.
Preferably, two second electric hydraulic cylinders are fixedly mounted at the bottom end inside the sleeve, and the telescopic ends of the two second electric hydraulic cylinders are in contact connection with the two sides of the bottom end of the loop bar.
Preferably, a shock absorber is fixedly mounted at the top end of the loop bar, and the top end of the shock absorber is in contact with the middle of the bottom end of the first supporting plate.
Preferably, four one side cell wall of jack all sets up flutedly, four one side cell wall of recess all fixed mounting has first spacing spring, four the equal fixed mounting of one end of first spacing spring has the arc piece, four the arc wall has all been seted up on the surface of inserted bar, four the arc wall is inlayed with the arc piece that corresponds and is established and be connected.
Preferably, both ends of the rotating shaft are respectively sleeved with a limiting ring, and one side of each limiting ring is in contact with both sides of the gear.
Preferably, the top end of the second supporting plate is fixedly provided with uniformly distributed bulges, and the bulges are all made of rubber.
Preferably, the limiting grooves are formed in the two sides of the inner wall of the sleeve, limiting blocks are fixedly mounted at the bottoms of the two sides of the sleeve rod and are connected with the corresponding limiting grooves in a sliding mode.
Preferably, threaded holes are formed in four corners of the bottom end of the base, and four foundation bolts are connected to the inner portions of the threaded holes in a threaded mode.
Preferably, one side fixed mounting of equipment box has flush mounting plate of switch, flush mounting plate of switch installs first electric hydraulic cylinder control switch and second electric hydraulic cylinder control switch respectively on the surface, first electric hydraulic cylinder and second electric hydraulic cylinder are respectively through first electric hydraulic cylinder control switch and second electric hydraulic cylinder control switch and external power supply electric connection.
The invention has the technical effects and advantages that:
(1) the rotating shaft is driven to rotate through the installed Z-shaped crank, the rotating gear is driven to rotate through the rotating shaft, the gear is meshed with a tooth socket formed in one side of the loop bar and is connected with the tooth socket, so that the loop bar is driven to lift through the gear, the first supporting plate and the second supporting plate are driven to lift through the lifting of the loop bar, pouring templates with different heights can be conveniently supported, when the specified height is reached, the bar-shaped tooth blocks are pushed to be meshed with the gear through the rotation of the rotary button to fix the gear, so that the loop bar is fixed, and meanwhile, the stable support of the loop bar is guaranteed through the supporting force of a second electric hydraulic cylinder installed inside the sleeve;
(2) the first supporting plate and the second supporting plate are rotatably connected through a connecting shaft, a first electric hydraulic cylinder arranged in the sliding groove pushes the sliding block to slide in the sliding groove, the connecting rod is rotatably connected with the sliding block, so that the sliding of the sliding block drives the connecting rod to rotate, the connecting rod is rotatably connected with the second supporting plate through a hinged support, so that the second connecting plate is driven to rotate, a certain included angle is formed between the second connecting plate and the second connecting plate, inclined planes with different angles can be conveniently supported, and the practical efficiency of the supporting device is improved;
(3) the first supporting plate is connected with the loop bar in an inserting mode through four inserting rods and inserting holes formed in four side edges of the loop bar, the arc-shaped block is extruded through a first limiting spring arranged in the groove, the arc-shaped block is connected with an arc-shaped groove formed in the surface of the loop bar in an embedding mode, the loop bar is fixed, the first connecting plate and the loop bar can be conveniently installed and detached, when the supporting plate is damaged, the supporting plate can be conveniently replaced in time, and the service life of the supporting device is prolonged;
(4) through the bumper shock absorber of loop bar top installation, the top of bumper shock absorber is connected with the middle part contact of the bottom of first backup pad, through the shock attenuation effect of bumper shock absorber, avoids bearing structure to receive the impact damage backup pad.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic view of a connection structure of a first support plate and a second support plate according to the present invention.
Fig. 3 is a schematic view of the connection structure of the loop bar and the first support plate according to the present invention.
FIG. 4 is a schematic view of the gear and spline connection structure of the present invention.
FIG. 5 is an enlarged view of a portion of the present invention.
FIG. 6 is a schematic view of the internal structure of the apparatus box of the present invention.
In the figure: 1. a base; 2. anchor bolts; 3. a sleeve; 4. an equipment box; 5. a Z-shaped crank; 6. rotating the button; 7. a loop bar; 8. a tooth socket; 9. a jack; 10. inserting a rod; 11. a first support plate; 12. a second support plate; 13. a fixed block; 14. a protrusion; 15. a chute; 16. a connecting rod; 17. a slider; 18. a first electric hydraulic cylinder; 19. hinging seat; 20. a groove; 21. a first limit spring; 22. an arc-shaped block; 23. an arc-shaped slot; 24. a shock absorber; 25. a limiting block; 26. a limiting groove; 27. a second electric hydraulic cylinder; 28. a gear; 29. a strip-shaped tooth block; 30. a rotating shaft; 31. a second limit spring; 32. a limit ring.
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.
The invention provides a supporting device for engineering infrastructure convenient to adjust as shown in figures 1-6, which comprises a base 1, wherein a sleeve 3 is fixedly arranged at the top end of the base 1, a loop bar 7 is sleeved in the sleeve 3, two second electric hydraulic cylinders 27 are fixedly arranged at the bottom end in the sleeve 3, the telescopic ends of the two second electric hydraulic cylinders 27 are in contact connection with the two sides of the bottom end of the loop bar 7, limiting grooves 26 are respectively arranged at the two sides of the inner wall of the sleeve 3, limiting blocks 25 are respectively fixedly arranged at the bottoms of the two sides of the loop bar 7, the two limiting blocks 25 are in sliding connection with the corresponding limiting grooves 26, a tooth socket 8 is arranged at one side of the loop bar 7, an equipment box 4 is fixedly arranged at the top of one side of the sleeve 3, two sides of the inner wall of the equipment box 4 are in penetrating connection with a rotating shaft 30 through embedded bearings, a Z-shaped crank 5 is fixedly arranged at one end of the rotating shaft 30, a gear 28 is sleeved in the middle of the rotating shaft 30, gear 28 is connected with the meshing of tooth's socket 8, the both ends of pivot 30 are all overlapped and are equipped with spacing ring 32, one side of two spacing rings 32 contacts with gear 28's both sides, the equal fixed mounting in both sides on the inside top of equipment box 4 has the spacing spring 31 of second, the one end fixed mounting of two spacing springs 31 of second has bar tooth piece 29, the middle part threaded connection on 4 tops of equipment box has rotary button 6, rotary button 6's bottom contacts with the middle part on bar tooth piece 29 top, Z type crank 5 through the installation drives pivot 30 and rotates, pivot 30 drives gear 28 and rotates, gear 28 drives the lift of loop bar 7, and promote bar tooth piece 29 and gear 28 meshing through rotary button 6, guarantee loop bar 7 stable.
Four sides at the top of the loop bar 7 are all provided with jacks 9, the interiors of the four jacks 9 are all connected with inserted bars 10 in an inserting way, one ends of the four inserted bars 10 are rotatably connected with a first supporting plate 11, the top end of the loop bar 7 is fixedly provided with a shock absorber 24, the top end of the shock absorber 24 is contacted with the middle part of the bottom end of the first supporting plate 11, the corners of two sides of the first supporting plate 11 are both fixedly provided with fixed blocks 13, a connecting shaft is rotatably connected between the two fixed blocks 13 through an embedded bearing, the surface of the connecting shaft is inserted with a second supporting plate 12, the top end of the second supporting plate 12 is fixedly provided with evenly distributed bulges 14, the bulges 14 are all made of rubber materials, one side of the top end of the first supporting plate 11 is provided with a sliding groove 15, the interior of the sliding groove 15 is slidably connected with a sliding block 17, one side wall of the sliding groove 15 is fixedly provided with a first electric hydraulic cylinder 18, the telescopic end of the first electric hydraulic cylinder 18 is fixedly connected with one side of the sliding block 17, the top of slider 17 rotates and is connected with connecting rod 16, and the one end fixed mounting of connecting rod 16 has free bearing 19, and the one end of free bearing 19 and the middle part fixed connection of second backup pad 12 bottom promote the slip of slider 17 through the first electric hydraulic cylinder 18 of installation, and the slip through slider 17 drives connecting rod 16 and rotates, and connecting rod 16 rotates and drives second backup pad 12 and rotate, is convenient for to the support on inclined plane.
One side cell wall of four jacks 9 all is seted up flutedly 20, the equal fixed mounting of one side cell wall of four recesses 20 has first spacing spring 21, the equal fixed mounting of one end of four first spacing springs 21 has arc piece 22, arc groove 23 has all been seted up on the surface of four inserted bar 10, four arc grooves 23 are inlayed with the arc piece 22 that corresponds and are established and be connected, it establishes with arc groove 23 to extrude arc piece 22 through first spacing spring 21, be convenient for to the fixed of inserted bar 10, thereby make things convenient for installation and dismantlement between inserted bar 10 and the loop bar 7.
Four edges of base 1 bottom all set up threaded hole, and the equal threaded connection in inside of four screw holes has rag bolt 2, and through threaded connection's rag bolt 2, be convenient for firmly fix base 1 and ground, guarantee base 1's stability.
One side fixed mounting of equipment box 4 has switch panel, and first electric hydraulic cylinder control switch and second electric hydraulic cylinder control switch are installed respectively to switch panel's surface, and first electric hydraulic cylinder 18 and second electric hydraulic cylinder 27 are respectively through first electric hydraulic cylinder control switch and second electric hydraulic cylinder control switch and external power supply electric connection.
The working principle of the invention is as follows: when the supporting device for engineering infrastructure convenient to adjust is needed to be used for supporting a plane, firstly, the base 1 is firmly fixed with the ground through the foundation bolt 2 artificially, then the Z-shaped crank 5 is rotated artificially, the rotating shaft 30 is driven to rotate through the rotation of the Z-shaped crank 5, the gear 28 is driven to rotate through the rotation of the rotating shaft 30, the loop bar 7 is driven to rise upwards through the rotation of the gear 28, the rotation is stopped when the second supporting plate 12 is rotated to be contacted with the supported plane, then the bar-shaped toothed block 29 is pushed to move downwards through the rotating button 6, the bar-shaped toothed block 29 moves downwards to be meshed with the gear 28, so that the gear 28 is fixed, the loop bar 7 is fixed through the gear 28 to avoid being contracted into the sleeve 3, then the second electric hydraulic cylinder 27 is opened through the second electric hydraulic cylinder control switch, and the operation is stopped when the second electric hydraulic cylinder 27 is contracted to be contacted with the bottom end of the loop bar 7, the supporting force of the loop bar 7 is increased through the second electric hydraulic cylinder 27, and the installation of the supporting device is completed.
When the supporting device for engineering infrastructure convenient to adjust is needed to be used for supporting the inclined plane, the steps are repeated firstly, then the second electric hydraulic cylinder 27 is opened through the second electric hydraulic cylinder control switch, the sliding of the sliding block 17 is pushed through the second electric hydraulic cylinder 27, the sliding block 17 is rotatably connected with the connecting rod 16, the sliding of the sliding block 17 drives the connecting rod 16 to rotate, the connecting rod 16 is rotatably connected with the second supporting plate 12 through the hinged support 19, the connecting rod 16 rotates to drive the second supporting plate 12 to rotate, an included angle matched with the inclined plane is formed between the second supporting plate 12 and the first supporting plate 11, the top end of the second supporting plate 12 is contacted with the inclined plane, and the inclined plane is supported.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The standard parts used by the invention can be purchased from the market, and the special-shaped parts can be customized according to the description and the description of the attached drawings.
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 (9)
1. The utility model provides a strutting arrangement is used to engineering capital construction convenient to adjust, includes base (1), its characterized in that, the top fixed mounting of base (1) has sleeve (3), the inside cover of sleeve (3) is equipped with loop bar (7), tooth's socket (8) have been seted up to one side of loop bar (7), the top fixed mounting of sleeve (3) one side has equipment box (4), the inner wall both sides of equipment box (4) alternate through the bearing of inlaying and are connected with pivot (30), the one end fixed mounting of pivot (30) has Z type crank (5), the middle part cover of pivot (30) is equipped with gear (28), gear (28) and tooth's socket (8) meshing are connected, the equal fixed mounting in both sides on the inside top of equipment box (4) has second spacing spring (31), two the one end fixed mounting of second spacing spring (31) has bar tooth piece (29), the middle part of the top end of the equipment box (4) is in threaded connection with a rotary button (6), the bottom end of the rotary button (6) is in contact with the middle part of the top end of a bar-shaped toothed block (29), jacks (9) are formed in four side edges of the top of a loop bar (7), inserting rods (10) are inserted into the four jacks (9), one ends of the four inserting rods (10) are rotatably connected with a first supporting plate (11), fixed blocks (13) are fixedly mounted at the edge positions of two sides of the first supporting plate (11), a connecting shaft is rotatably connected between the two fixed blocks (13) through embedded bearings, a second supporting plate (12) is inserted into the surface of the connecting shaft, a sliding groove (15) is formed in one side of the top end of the first supporting plate (11), a sliding block (17) is slidably connected to the inner part of the sliding groove (15), and a first electric hydraulic cylinder (18) is fixedly mounted on one side wall of the sliding groove (15), the flexible end of first electric hydraulic cylinder (18) and one side fixed connection of slider (17), the top of slider (17) is rotated and is connected with connecting rod (16), the one end fixed mounting of connecting rod (16) has free bearing (19), the middle part fixed connection of the one end of free bearing (19) and second backup pad (12) bottom.
2. The supporting device for engineering infrastructure convenient to adjust of claim 1, characterized in that: two second electric hydraulic cylinders (27) are fixedly mounted at the bottom end inside the sleeve (3), and the telescopic ends of the second electric hydraulic cylinders (27) are in contact connection with the two sides of the bottom end of the loop bar (7).
3. The supporting device for engineering infrastructure convenient to adjust of claim 1, characterized in that: the top end fixed mounting of loop bar (7) has bumper shock absorber (24), the top of bumper shock absorber (24) contacts with the middle part of first backup pad (11) bottom.
4. The supporting device for engineering infrastructure convenient to adjust of claim 1, characterized in that: four one side cell wall of jack (9) all is seted up recess (20), four the equal fixed mounting of one side cell wall of recess (20) has first spacing spring (21), four the equal fixed mounting of one end of first spacing spring (21) has arc piece (22), four arc groove (23), four have all been seted up on the surface of inserted bar (10) arc groove (23) and the arc piece (22) that correspond inlay and establish and be connected.
5. The supporting device for engineering infrastructure convenient to adjust of claim 1, characterized in that: both ends of pivot (30) all are equipped with spacing ring (32), two one side and the both sides of gear (28) of spacing ring (32) contact.
6. The supporting device for engineering infrastructure convenient to adjust of claim 1, characterized in that: the top of second backup pad (12) is fixed and is equipped with evenly distributed arch (14), and is a plurality of arch (14) are the rubber material.
7. The supporting device for engineering infrastructure convenient to adjust of claim 1, characterized in that: spacing groove (26) have all been seted up to the both sides of sleeve (3) inner wall, the equal fixed mounting in bottom of loop bar (7) both sides has stopper (25), two stopper (25) and corresponding spacing groove (26) sliding connection.
8. The supporting device for engineering infrastructure convenient to adjust of claim 1, characterized in that: threaded holes are formed in four corners of the bottom end of the base (1), and four foundation bolts (2) are connected to the inner portions of the threaded holes in a threaded mode.
9. The supporting device for engineering infrastructure convenient to adjust of claim 2, characterized in that: one side fixed mounting of equipment box (4) has flush mounting plate of switch, flush mounting plate of switch installs first electric hydraulic cylinder control switch and second electric hydraulic cylinder control switch respectively on the surface, first electric hydraulic cylinder (18) and second electric hydraulic cylinder (27) are respectively through first electric hydraulic cylinder control switch and second electric hydraulic cylinder control switch and external power source electric connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010409570.1A CN113668900A (en) | 2020-05-14 | 2020-05-14 | Strutting arrangement is used in engineering capital construction convenient to adjust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010409570.1A CN113668900A (en) | 2020-05-14 | 2020-05-14 | Strutting arrangement is used in engineering capital construction convenient to adjust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113668900A true CN113668900A (en) | 2021-11-19 |
Family
ID=78537440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010409570.1A Pending CN113668900A (en) | 2020-05-14 | 2020-05-14 | Strutting arrangement is used in engineering capital construction convenient to adjust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113668900A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293816A (en) * | 2022-02-10 | 2022-04-08 | 杨文超 | Fixing support for building engineering template |
-
2020
- 2020-05-14 CN CN202010409570.1A patent/CN113668900A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293816A (en) * | 2022-02-10 | 2022-04-08 | 杨文超 | Fixing support for building engineering template |
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Application publication date: 20211119 |