CN112942781A - Construction platform that protectiveness is strong - Google Patents
Construction platform that protectiveness is strong Download PDFInfo
- Publication number
- CN112942781A CN112942781A CN202110107977.3A CN202110107977A CN112942781A CN 112942781 A CN112942781 A CN 112942781A CN 202110107977 A CN202110107977 A CN 202110107977A CN 112942781 A CN112942781 A CN 112942781A
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- CN
- China
- Prior art keywords
- fixedly connected
- construction platform
- flat plate
- rod
- main body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
- E04G3/246—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons following the inside contour of a building
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- 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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/20—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by walls
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- 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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/22—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by roofs or ceilings
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- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/001—Safety or protective measures against falling down relating to scaffoldings
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- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
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- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
- E04G5/046—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on walls
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- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/16—Struts or stiffening rods, e.g. diagonal rods
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a construction platform with strong protectiveness, which belongs to the technical field of building construction equipment and comprises a vertical wall body and a floor slab, wherein the construction platform is fixedly connected between the vertical wall body and the floor slab, the construction platform comprises a main body and a protection device, the middle part of the main body is movably connected with the protection device, the upper side of the main body is movably connected with a stabilizing device, the main body comprises a flat plate and vertical supports, the front and back of the lower end of the flat plate are respectively and fixedly connected with the vertical supports in a symmetrical mode, the right end of the flat plate is fixedly connected with a longitudinal friction plate. Compared with the prior art, the invention has the beneficial effects that: the elevator shaft protection device is simple in structure and convenient to use, the whole construction platform is prevented from falling down due to the fact that the fixture blocks or the sliding rods or the vertical supports are broken through the protection devices, the front end and the rear end of the construction platform are in supporting connection with the vertical wall bodies on the front side and the rear side through the stabilizing devices, the construction platform is prevented from shaking back and forth, safety is high, and safety guarantee can be provided for elevator shaft construction.
Description
Technical Field
The invention relates to the technical field of building construction equipment, in particular to a construction platform with strong protectiveness.
Background
The elevator shaft is a shaft for installing an elevator, the size of the shaft is determined according to the type selection of the elevator, an elevator track and a counterweight track are installed on the wall of the shaft, an elevator door is installed in a reserved door opening, and an elevator machine room is arranged at the top of the shaft.
Elevator shaft relates to the technical field of building construction. The novel wall-penetrating bolt type wall-penetrating bolt comprises an outer die, an inner die and a wall-penetrating bolt, wherein the inner die comprises an inner template, a rotation angle module, a horizontal telescopic ejector rod group, a chassis, chassis supporting legs and an inner template bottom vertical regulator group; the outer formwork and the inner formwork are assembled and combined by a plurality of shaping combined steel formworks through the square hooks and are connected and formed through the wall penetrating bolts.
Chinese patent (No. CN 108286328A) discloses an elevator shaft construction platform, which can further ensure the safety of constructors when the construction platform is used by arranging a fence and a skid-proof plate, but has no good protection measure for falling which may occur in case of overload. Therefore, a construction platform with strong protection is provided for the technical personnel in the field, so as to solve the problems provided in the background.
Disclosure of Invention
The invention aims to provide a construction platform with strong protection so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a construction platform with strong protection performance comprises a vertical wall body and a floor slab, wherein the construction platform is fixedly connected between the vertical wall body and the floor slab and comprises a main body and a protection device, the middle part of the main body is movably connected with the protection device, the upper side of the main body is movably connected with a stabilizing device, the main part includes dull and stereotyped and vertical support, and dull and stereotyped lower extreme front and back symmetry respectively fixedly connected with vertical support, dull and stereotyped right-hand member fixedly connected with fore-and-aft friction plate, friction plate right-hand member and vertical wall body fixed connection, friction plate left end downside front and back symmetry respectively fixedly connected with slant support, slant support lower extreme fixed connection is at the vertical support right-hand member downside of front and back side, slant support middle part fixedly connected with mount, mount difference fixed connection is at the vertical support right-hand member upside of front and back side, swing joint has protection device on the mount, dull and stereotyped lower extreme.
As a further scheme of the invention: front and back side vertical support downside fixedly connected with slide bar, sliding connection has the fixture block on the slide bar, and the fixture block left side is supported in the floor upper end of below, and the fixture block right side is supported in the floor right-hand member of below, and the slide bar is preceding or back side rotation is connected with first torsion spring, and the fixed connection in the vertical support inboard in the first torsion spring outside, the inboard fixed connection in fixture block front and back end.
As a still further scheme of the invention: protection device includes fixing base and first rotation seat, and fixing base fixed connection is respectively at front and back side mount middle part, and front and back side fixing base rotates and is connected with the pivot, and the pivot middle part rotates and is connected with first rotation seat, and both ends fixedly connected with guard bar about first rotation seat, the side rotates around the pivot and is connected with second torsion spring, and the inner fixed connection of second torsion spring is on first rotation seat, and second torsion spring outer end fixed connection is inboard at the fixing base.
As a still further scheme of the invention: the right side of the lower end of the flat plate is fixedly connected with connecting rods which are symmetrical front and back, the lower end of each connecting rod is fixedly connected with a limiting rod, and the upper end of each limiting rod is intersected with the upper side movement track of the corresponding protective rod.
As a still further scheme of the invention: the stabilizing device comprises a driving motor and a second rotating seat, the driving motor is fixedly connected to the middle of the lower end of a flat plate through a motor seat, a driving chain wheel is fixedly connected to the output end of the driving motor, the driving chain wheel is connected with a driven chain wheel through chain transmission, the driven chain wheel is respectively and fixedly connected to a first threaded rod and a second threaded rod, the first threaded rod is rotatably connected to the second rotating seat on the left side, the second threaded rod is rotatably connected to the second rotating seat on the right side, the second rotating seat is bilaterally and symmetrically fixedly connected to the lower end of the flat plate, a threaded sleeve is connected to the front end and the rear end of the first threaded rod in a threaded manner, a threaded sleeve is fixedly connected.
As a still further scheme of the invention: the screw thread of the front side of the first threaded rod is opposite to the screw thread of the rear side, and the screw thread of the front side of the first threaded rod is opposite to the screw thread of the rear side of the second threaded rod.
As a still further scheme of the invention: the upper end of the flat plate is fixedly connected with a plurality of connecting rings.
Compared with the prior art, the invention has the beneficial effects that: the elevator shaft protection device is simple in structure and convenient to use, the whole construction platform is prevented from falling down due to the fact that the fixture blocks or the sliding rods or the vertical supports are broken through the protection devices, the front end and the rear end of the construction platform are in supporting connection with the vertical wall bodies on the front side and the rear side through the stabilizing devices, the construction platform is prevented from shaking back and forth, safety is high, and safety guarantee can be provided for elevator shaft construction.
Drawings
FIG. 1 is a schematic structural view of a highly protective construction platform;
FIG. 2 is a schematic structural diagram of a protective device in a construction platform with strong protection;
FIG. 3 is a schematic structural diagram of a stabilizing device in a highly protective construction platform;
FIG. 4 is a schematic structural view of a fixture block in a construction platform with high protection;
in the figure: 1-vertical wall, 2-floor, 3-construction platform, 4-main body, 5-protection device, 6-stabilization device, 7-flat plate, 8-vertical support, 9-friction plate, 10-oblique support, 11-fixed frame, 12-sliding rod, 13-clamping block, 14-first torsion spring, 15-fixed seat, 16-first rotating seat, 17-rotating shaft, 18-protective rod, 19-second torsion spring, 20-connecting rod, 21-limiting rod, 22-driving motor, 23-second rotating seat, 24-motor seat, 25-driving sprocket, 26-chain, 27-driven sprocket, 28-first threaded rod, 29-second threaded rod, 30-threaded sleeve, 31-stabilization plate, 32-connecting ring.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
The first embodiment is as follows: referring to fig. 1-4, a construction platform with strong protection performance comprises a vertical wall 1 and a floor 2, wherein the construction platform 3 is fixedly connected between the vertical wall 1 and the floor 2, the construction platform 3 comprises a main body 4 and a protection device 5, the middle part of the main body 4 is movably connected with the protection device 5, the upper side of the main body 4 is movably connected with a stabilizing device 6, the main body 4 comprises a flat plate 7 and a vertical support 8, the lower end of the flat plate 7 is respectively and fixedly connected with the vertical support 8 in a front-back symmetrical manner, the right end of the flat plate 7 is fixedly connected with a longitudinal friction plate 9, the right end of the friction plate 9 is fixedly connected with the vertical wall 1, the lower side of the left end of the friction plate 9 is respectively and fixedly connected with an oblique support 10 in a front-back symmetrical manner, the lower end of the oblique support 10 is fixedly connected with the lower side, the fixed frame 11 is movably connected with a protection device 5, and the lower end of the flat plate 7 is movably connected with a stabilizing device 6.
Front and back side 8 downside fixedly connected with slide bar 12 of vertical support, sliding connection has fixture block 13 on slide bar 12, and fixture block 13 left side is supported at 2 upper ends of lower floor, and fixture block 13 right side is supported at 2 right-hand members of downside floor, and slide bar 12 front and back side rotation is connected with first torsion spring 14, and the first torsion spring 14 outside fixed connection is inboard at vertical support 8, and the inboard fixed connection of first torsion spring 14 is at the fixture block 13 front and back end, fixes main part 4 in the elevator shaft through the cooperation of fixture block 13 and floor 2.
The right side of the lower end of the flat plate 7 is fixedly connected with connecting rods 20 which are symmetrical front and back, the lower end of each connecting rod 20 is fixedly connected with a limiting rod 21, the upper end of each limiting rod 21 is intersected with the motion track of the upper side of the protection rod 18, and the rotation of the protection rod 18 is limited through the limiting rods 21.
The stabilizing device 6 comprises a driving motor 22 and a second rotating seat 23, the driving motor 22 is fixedly connected to the middle of the lower end of the flat plate 7 through a motor seat 24, a driving chain wheel 25 is fixedly connected to the output end of the driving motor 22, the driving chain wheel 25 is connected with a driven chain wheel 27 through a chain 26 in a transmission mode, the driven chain wheel 27 is fixedly connected to a first threaded rod 28 and a second threaded rod 29 respectively, the first threaded rod 28 is rotatably connected to the second rotating seat 23 on the left side, the second threaded rod 29 is rotatably connected to the second rotating seat 23 on the right side, the left and right symmetries of the second rotating seat 23 are fixedly connected to the lower end of the flat plate 7 respectively, an internally-connected threaded sleeve 30 is connected to the front end and the rear end of the first threaded rod 28, a threaded sleeve 30 is fixedly connected to the front end and the rear.
The front side thread and the back side thread of the first threaded rod 28 are opposite in screwing direction, the front side thread and the back side thread of the first threaded rod 28 and the second threaded rod 29 are opposite in screwing direction, and the first threaded rod 28 and the second threaded rod 29 drive the front side thread sleeve 30 and the back side thread sleeve 30 to move forwards or backwards simultaneously.
The upper end of the flat plate 7 is fixedly connected with a plurality of connecting rings 32, and the connecting rings 32 are connected with hoisting equipment.
Example two: this embodiment is a further improvement of the previous embodiment: considering that the construction platform 3 is in the lifting process, the fixture block 13 may not be accurately clamped on the floor 2 due to the acting force of the first torsion spring 14, the right end of the fixture block 13 is additionally provided with the adjusting rod, meanwhile, the front and rear inclined supports 10 are additionally provided with the longitudinal stop rod, the adjusting rod is positioned on the upper side of the stop rod, and the fixture block 13 can be rapidly clamped on the floor 2 after passing through one floor 2 under the action of the adjusting rod and the stop rod.
The working principle of the invention is as follows: firstly, the construction platform 3 is assembled in the elevator shaft, the connecting ring 32 is connected through hoisting equipment at the top of the elevator shaft, when the construction of the elevator shaft at one floor is finished, the construction platform 3 is lifted upwards through the hoisting equipment, the driving motor 22 is started to separate the stabilizing plates 31 at the front side and the rear side from the vertical wall 1, then the lifting is carried out, when the lifting is carried out, the protective rod 18 is firstly contacted with the floor 2 at the upper side, the floor 2 drives the protective rod 18 to rotate around the rotating shaft 17, the protective rod 18 rotates until the lower end is abutted against the left end of the floor 2, after the floor 2 slides for a certain distance from the side, the protective rod 18 is separated from the floor, the second torsion spring 19 acts to rotate the protective rod 18 until the right end of the protective rod 18 exceeds the plane of the vertical support 8, after the upper end of the fixture block 13 is contacted with the floor 2 at the upper side, the fixture, after the left end of the fixture block 13 slides a certain distance away from the side surface of the floor slab 2, the fixture block 13 is separated from the side surface of the floor slab 2, the first torsion spring 14 acts, the first torsion spring 14 drives the left end of the fixture block 13 to rotate upwards, the right end of the fixture block 13 abuts against the side surface of the floor slab 2, at the moment, the hoisting equipment is controlled to lower the construction platform 3, the fixture block 13 is engaged with the floor slab 2, the friction block 9 abuts against the vertical plane 1 on the right side, the driving motor 22 is started, the driving motor 22 drives the driven sprocket 27 to rotate through the driving sprocket 25 and the chain 26, the driven sprocket 27 drives the first threaded rod 28 and the second threaded rod 29 to rotate, the first threaded rod 28 and the second threaded rod 29 drive the threaded sleeve 30 and the stabilizing plate 31 to move forwards and backwards, after the stabilizing plate 61 abuts against the front and rear vertical wall bodies 1, the driving motor 22 is turned off, when the fixture block 13 or the, the right end of the protection rod 18 abuts against the upper end of the floor slab 2, the protection rod 18 rotates around the rotating shaft 17 through the first rotating seat 16, and when the protection rod 18 rotates to the right side to abut against the upper end of the limiting rod 21, the construction platform 3 stops descending.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A construction platform with strong protectiveness comprises a vertical wall body (1) and a floor slab (2), wherein a construction platform (3) is fixedly connected between the vertical wall body (1) and the floor slab (2), the construction platform (3) comprises a main body (4) and a protection device (5), the middle part of the main body (4) is movably connected with the protection device (5), the upper side of the main body (4) is movably connected with a stabilizing device (6), the construction platform is characterized in that the main body (4) comprises a flat plate (7) and vertical supports (8), the front and back of the lower end of the flat plate (7) are respectively and symmetrically and fixedly connected with the vertical supports (8), the right end of the flat plate (7) is fixedly connected with a longitudinal friction plate (9), the right end of the friction plate (9) is fixedly connected with the vertical wall body (1), the front and back of the lower side of the left end of the friction plate (9) are respectively and symmetrically and fixedly connected, the middle part of the oblique support (10) is fixedly connected with a fixing frame (11), the fixing frame (11) is respectively and fixedly connected with the upper side of the right end of the front-back vertical support (8), the fixing frame (11) is movably connected with a protection device (5), and the lower end of the flat plate (7) is movably connected with a stabilizing device (6).
2. The construction platform with strong protection performance as claimed in claim 1, wherein a sliding rod (12) is fixedly connected to the lower side of the vertical support (8) on the front and rear sides, a clamping block (13) is slidably connected to the sliding rod (12), the left side of the clamping block (13) abuts against the upper end of the lower floor (2), the right side of the clamping block (13) abuts against the right end of the lower floor (2), a first torsion spring (14) is rotatably connected to the front and rear sides of the sliding rod (12), the outer side of the first torsion spring (14) is fixedly connected to the inner side of the vertical support (8), and the inner side of the first torsion spring (14) is fixedly connected to the front and rear ends of the.
3. The construction platform with strong protection performance as claimed in claim 2, wherein the protection device (5) comprises a fixed seat (15) and a first rotating seat (16), the fixed seat (15) is respectively and fixedly connected to the middle parts of the front and rear fixed frames (11), the front and rear fixed seats (15) are rotatably connected with a rotating shaft (17), the middle part of the rotating shaft (17) is rotatably connected with the first rotating seat (16), the left and right ends of the first rotating seat (16) are fixedly connected with guard bars (18), the front and rear sides of the rotating shaft (17) are rotatably connected with a second torsion spring (19), the inner end of the second torsion spring (19) is fixedly connected to the first rotating seat (16), and the outer end of the second torsion spring (19) is fixedly connected to the inner side of the fixed seat (15).
4. The construction platform with strong protection performance as claimed in claim 3, wherein the right side of the lower end of the flat plate (7) is fixedly connected with a connecting rod (20) which is symmetrical in the front and back direction, the lower end of the connecting rod (20) is fixedly connected with a limiting rod (21), and the upper end of the limiting rod (21) is intersected with the upper side movement track of the guard bar (18).
5. The construction platform with strong protection property as claimed in claim 4, wherein the stabilizing device (6) comprises a driving motor (22) and a second rotating base (23), the driving motor (22) is fixedly connected to the middle of the lower end of the flat plate (7) through a motor base (24), the output end of the driving motor (22) is fixedly connected with a driving sprocket (25), the driving sprocket (25) is in transmission connection with a driven sprocket (27) through a chain (26), the driven sprocket (27) is respectively and fixedly connected to a first threaded rod (28) and a second threaded rod (29), the first threaded rod (28) is rotatably connected to the second rotating base (23) on the left side, the second threaded rod (29) is rotatably connected to the second rotating base (23) on the right side, the second rotating base (23) is respectively and fixedly connected to the lower end of the flat plate (7) in a left-right symmetry manner, a threaded sleeve (30) is connected to the front end and the rear end of the first, the front end and the rear end of the second threaded rod (29) are fixedly connected with threaded sleeves (30), and the front side and the rear side of the threaded sleeves (30) are fixedly connected with stabilizing plates (31).
6. A protective construction platform according to claim 5, wherein the first threaded bar (28) has a front thread with an opposite thread direction to the rear thread, and the first threaded bar (28) has a front thread with an opposite thread direction to the second threaded bar (29).
7. A construction platform with strong protection according to any one of claims 1-6, characterized in that a plurality of connecting rings (32) are fixedly connected to the upper end of the flat plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110107977.3A CN112942781A (en) | 2021-01-27 | 2021-01-27 | Construction platform that protectiveness is strong |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110107977.3A CN112942781A (en) | 2021-01-27 | 2021-01-27 | Construction platform that protectiveness is strong |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112942781A true CN112942781A (en) | 2021-06-11 |
Family
ID=76237415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110107977.3A Withdrawn CN112942781A (en) | 2021-01-27 | 2021-01-27 | Construction platform that protectiveness is strong |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112942781A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114150857A (en) * | 2021-12-17 | 2022-03-08 | 中国建筑第六工程局有限公司 | Construction method of attached type automatic climbing elevator shaft safety protection platform |
-
2021
- 2021-01-27 CN CN202110107977.3A patent/CN112942781A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114150857A (en) * | 2021-12-17 | 2022-03-08 | 中国建筑第六工程局有限公司 | Construction method of attached type automatic climbing elevator shaft safety protection platform |
| CN114150857B (en) * | 2021-12-17 | 2022-12-13 | 中国建筑第六工程局有限公司 | Construction method of attached type automatic climbing elevator shaft safety protection platform |
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Application publication date: 20210611 |