CN113585789A - Shock attenuation protector for building - Google Patents
Shock attenuation protector for building Download PDFInfo
- Publication number
- CN113585789A CN113585789A CN202110908293.3A CN202110908293A CN113585789A CN 113585789 A CN113585789 A CN 113585789A CN 202110908293 A CN202110908293 A CN 202110908293A CN 113585789 A CN113585789 A CN 113585789A
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- Prior art keywords
- block
- welded
- sleeved
- shock absorption
- fixed
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
- E04G21/3266—Safety nets
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Emergency Lowering Means (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The application is a divisional application with the application number of 202010588395.7, the application date of 24.06.2020 and the title of 'a climbing protection device for buildings'. The invention discloses a shock absorption protection device for a building, which comprises a protection bracket, a connecting device and a lifting platform, wherein the protection bracket is fixedly connected with the connecting device; the utility model discloses a safety protection device for elevator, including protective bracket, elevating platform, mounting bracket, vertical direction fixedly connected with screw rod, first screw rod spiro union in the swivel nut, fixed mounting elevator motor on the elevating platform, elevator motor's output is connected with the gear, lateral surface on the swivel nut is fixed with the ring gear. The lifting platform and the protective support are driven to move up and down by rotating the first screw rod, so that the protective support climbs outside the building, and after the protective support climbs, the protective support is fixed with the outside of the building by the clamping mechanism.
Description
The application is a divisional application with the application number of 202010588395.7, the application date of 24.06.2020 and the title of 'a climbing protection device for buildings'.
Technical Field
The invention relates to the technical field of building equipment, in particular to a shock absorption protection device for a building.
Background
The protective net is a building security product which is arranged in a stadium, a balcony and used for building construction and provides safety guarantees such as protection and falling prevention for the construction; the traditional protective net is generally fixed above the ground, and construction operation needs to be carried out at the heights of different floors along with the expansion of construction, so that the height of the protective net needs to be continuously changed to achieve the optimal protective effect. In addition, the protective frame in the prior art is not provided with a damping protection device, so that the protective net is easily damaged by impact due to external impact, and the service life of the protective net is shortened.
Therefore, in view of the above situation, there is an urgent need to develop a shock absorption protection device for building to overcome the shortcomings in the current practical application.
Disclosure of Invention
The invention aims to provide a shock absorption and protection device for a building, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a shock absorption protection device for buildings comprises a protection bracket, a connecting device and a lifting platform; the utility model discloses a building, including protective bracket, elevating platform, mounting bracket, screw sleeve, first screw rod spiro union in the screw sleeve, elevating platform fixed mounting elevator motor, elevating motor's output is connected with the gear, lateral surface on the screw sleeve is fixed with the ring gear, the gear meshes in the ring gear, fixture is all installed to one side that elevating platform and mounting bracket are close to the building.
Further, mounting bracket fixed mounting has the guide bar, elevating platform and guide bar sliding connection, the bottom of guide bar is equipped with the stopper.
Furthermore, the clamping mechanism on the lifting platform comprises two swing arms which are symmetrically and rotatably arranged on the upper side and the lower side of the lifting platform, a clamping piece is fixedly arranged at the end of each swing arm, a second screw rod is rotatably arranged in the lifting platform in the horizontal direction, a second screw sleeve is in threaded connection with the second screw rod, the second screw sleeve is in sliding connection with the lifting platform, two push-pull rods are symmetrically and hinged to the upper side and the lower side of the second screw sleeve, and the other end of each push-pull rod is hinged to the corresponding swing arm.
Furthermore, the holder includes two grip rings, and the one end of two grip rings is articulated each other, and the equal fixed mounting of the other end of two grip rings has the electro-magnet, and still through connecting spring fixed connection between two grip rings.
Further, a protective net is fixed on the inner side of the protective support, the connecting device comprises a connecting block and a fixed shell, the connecting block is welded on two side edges of the bottom surface of the protective support respectively, a clamping block is welded at one end of the connecting block, the fixed shell is welded on one side of the bottom surface of the lifting platform, a baffle is welded on the top of the fixed shell, a top hole is formed in the center of the top of the fixed shell, a top block is sleeved inside the top hole, a spring clamping groove is welded on the top of the top block, a compression spring is sleeved on the top of the spring clamping groove and located at the bottom of the baffle, guide blocks are welded on two sides of the top block, a first rotating bolt is sleeved at one end of each guide block, an L-shaped rotating block is arranged at one end of each guide block and connected with the first rotating bolt, a triangular block is welded at the center of the bottom of the L-shaped rotating block, a second rotating bolt is sleeved at the bottom of the triangular block, and the second rotates the bolt and is connected with the baffle, fixed shell bottom inner wall welding has the slide rail, the slide rail top is provided with the movable block, movable block top center department has seted up the chute, the kicking block bottom is provided with the runner, and the runner is located inside the chute, fixed shell one side center department welding has the mount, fixed shell all has cup jointed the screw thread post with mount center department, and screw thread post one end is connected with the movable block, the screw thread post other end has cup jointed a plurality of auto-lock nut, and auto-lock nut cup joints in the mount outside.
Furthermore, a plurality of shock absorption elastic pieces are welded at the bottom of the other end of the L-shaped rotating block, and rubber pads are bonded at the bottoms of the shock absorption elastic pieces.
Furthermore, threaded holes are formed in the centers of the fixed shell and one end of the fixed frame, and the threaded holes are sleeved on the outer sides of the threaded columns.
Furthermore, bolt holes are formed in one end of the L-shaped rotating block and one end of the guide block, and the bolt holes are sleeved on the outer side of the first rotating bolt.
Furthermore, a sliding block is welded at the bottom of the moving block and is sleeved inside the sliding rail.
Compared with the prior art, the invention has the beneficial effects that: the lifting platform and the protective support are driven to move up and down by rotating the first screw rod, so that the protective support climbs outside a building, after the protective support climbs, the protective support is fixed with the outside of the building by using the clamping mechanism, and the first screw sleeve is driven to rotate by the lifting motor, so that the first screw rod is driven to move upwards to climb the lifting platform in the next period, and the lifting capacity of the operation platform is effectively improved; connecting device utilizes to twist and moves self-locking nut, makes the screw thread post extrusion movable block jack-up kicking block, and kicking block upward movement drives L shape turning block and rotates and press from both sides tight fixture block, accomplishes fixedly, abandons the tradition and ties up fixed mode, and it is fixed to adopt the block, and fixed more firm, and the installation is dismantled conveniently, is favorable to user's maintenance and change protection network, and when external striking simultaneously, the shock attenuation shell fragment provides elasticity buffering impact, avoids the protection network body to receive the striking and damages, extension protection network body life.
Drawings
Fig. 1 is a schematic structural view of a shock absorption and protection device for a building.
Fig. 2 is a schematic structural diagram of a clamping mechanism in a shock absorption and protection device for a building.
Fig. 3 is a schematic structural diagram of a clamping member in the shock absorption and protection device for buildings.
Fig. 4 is a schematic structural diagram of a protective bracket and a protective net in the shock absorption protective device for the building.
Fig. 5 is a schematic view of a connection structure of a protective bracket and a lifting platform in the shock absorption protective device for the building.
Fig. 6 is an enlarged view of parts of a connecting block and a fixture block in the shock absorption and protection device for the building.
Fig. 7 is a sectional view of a fixed housing structure in the shock absorbing and protecting device for construction.
Fig. 8 is an enlarged view of the L-shaped rotating block in the shock absorbing and protecting device for building.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1 to 3, a shock absorption protection device for a building in an embodiment of the present invention includes a protection bracket 1, a connecting device 3, and a lifting platform 2; the utility model discloses a building protection device, including protective bracket 1, elevating platform 2, connecting device 3, first screw rod 7 of vertical direction fixedly connected with is passed through respectively to the both ends of protective bracket 1, the top of elevating platform 2 is provided with a mounting bracket 6, elevating platform 2 rotates and is connected with swivel nut 4, the first screw rod 7 of vertical direction fixedly connected with on the mounting bracket 6, first screw rod 7 spiro union in swivel nut 4, fixed mounting elevator motor 8 on the elevating platform 2, elevator motor 8's output is connected with gear 9, lateral surface on the swivel nut 4 is fixed with ring gear 10, gear 9 meshes in ring gear 10, fixture 11 is all installed to one side that elevating platform 2 and mounting bracket 6 are close to the building. Mounting bracket 6 fixed mounting has guide bar 5, elevating platform 2 and 5 sliding connection of guide bar, the bottom of guide bar is equipped with stopper 12. The clamping mechanism 11 on the lifting platform 2 comprises two swing arms 13 which are symmetrically and rotatably arranged on the upper side and the lower side of the lifting platform 2, a clamping piece 14 is fixedly arranged at the end of each swing arm 13, a second screw rod 15 is rotatably arranged in the lifting platform 2 in the horizontal direction, a second screw sleeve 17 is in threaded connection with the second screw rod 15, the second screw sleeve 17 is in sliding connection with the lifting platform 2, two push-pull rods 16 are symmetrically and hingedly arranged on the upper side and the lower side of the second screw sleeve 17, and the other end of each push-pull rod 16 is hinged to the swing arms 13. The clamping piece 14 comprises two clamping rings 18, one ends of the two clamping rings 18 are hinged to each other, electromagnets 20 are fixedly mounted at the other ends of the two clamping rings 18, the two clamping rings 18 are fixedly connected with each other through a connecting spring 19, and the two electromagnets 20 drive the two clamping rings 18 to attract each other by passing current with opposite polarities into the two electromagnets 20, so that the pipe fitting outside the building is surrounded and fixed.
During operation, two fixture 11 fixed centre gripping are on the outside pipe fitting of building, when needing to climb, loosen the fixture who is located on elevating platform 2, elevator motor 8 passes through gear 9 meshing ring gear 10, thereby it rotates to drive swivel nut 4, swivel nut 4 rotates and rises along first screw rod 7, drive elevating platform rebound, elevator motor 8 stop work, the fixture who is located on elevating platform 2 is fixed centre gripping on the outside pipe fitting of building, loosen the fixture who is located on mounting bracket 6 after that, elevator motor work, swivel nut 4 is at the 2 internal rotations of elevating platform, elevating platform 2 is fixed in on the pipe fitting by fixture, consequently swivel nut 4 drives first screw rod 7 and rises, thereby make mounting bracket 6 rise, accomplish the operation that rises of a cycle.
Referring to fig. 4 to 8, a protective net 101 is fixed on the inner side of the protective bracket 1, the connecting device 3 includes a connecting block 104 and a fixed housing 103, the connecting block 104 is welded on each of two side edges of the bottom surface of the protective bracket 1, a clamping block 105 is welded on one end of the connecting block 104, the fixed housing 103 is welded on one side of the bottom surface of the lifting platform 2, a baffle 106 is welded on the top of the fixed housing 103, a top hole 115 is formed in the center of the top of the fixed housing 103, a top block 109 is sleeved inside the top hole 115, a spring clamping groove 108 is welded on the top of the top block 109, a compression spring 107 is sleeved on the top of the spring clamping groove 108, the compression spring 107 is located at the bottom of the baffle 106, guide blocks 111 are welded on each of two sides of the top block 109, a first rotating bolt 113 is sleeved on one end of the guide blocks 111, an L-shaped rotating block 110 is arranged on one end of the guide blocks 111, and the L-shaped rotating block 110 is connected with the first rotating bolt 113, the improved structure of the automobile seat lock is characterized in that a triangular block 112 is welded at the center of the bottom of the L-shaped rotating block 110, a second rotating bolt 114 is sleeved at the bottom of the triangular block 112 and connected with the baffle 106, a sliding rail 119 is welded on the inner wall of the bottom of the fixed shell 103, a moving block 117 is arranged at the top of the sliding rail 119, a chute 118 is formed in the center of the top of the moving block 117, a rotating wheel 116 is arranged at the bottom of the ejecting block 109 and located inside the chute 118, a fixed frame 121 is welded at the center of one side of the fixed shell 103, threaded columns 120 are sleeved at the centers of the fixed shell 103 and the fixed frame 121, one ends of the threaded columns 120 are connected with the moving block 117, a plurality of self-locking nuts 123 are sleeved at the other ends of the threaded columns 120, and the self-locking nuts 123 are sleeved outside the fixed frame 121. The bottom of the other end of the L-shaped rotating block 110 is welded with a plurality of shock absorption elastic sheets 124, and the bottom of each shock absorption elastic sheet 124 is bonded with a rubber pad 125. The center of one end of the fixing housing 103 and the fixing frame 121 is provided with a threaded hole 122, and the threaded hole 122 is sleeved outside the threaded column 120. Bolt holes are formed in one end of the L-shaped rotating block 110 and one end of the guide block 111, and the bolt holes are sleeved on the outer side of the first rotating bolt 113. The bottom of the moving block 117 is welded with a sliding block, and the sliding block is sleeved inside the sliding rail 119. When the protective screening device is used, the clamping block is clamped at the top of an adjacent fixed shell, the L-shaped rotating block is clamped inside the clamping block, the self-locking nut is rotated clockwise, the self-locking nut drives the threaded column to extrude the moving block, the moving block moves the jacking block, the upward movement of the jacking block drives the guide block to move, the guide block drives the L-shaped rotating block to rotate, the L-shaped rotating block freely rotates through the second rotating bolt, the other end of the L-shaped rotating block downwards rotates to clamp the clamping block at the moment, the fixation is completed, when external impact occurs, the protective screening drives the protective support to shake and extrude the damping elastic sheet, and the damping elastic sheet provides elastic buffering impact force.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several variations and modifications without departing from the concept of the present invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (5)
1. A shock absorption protection device for buildings is characterized by comprising a protection bracket (1), a connecting device (3) and a lifting platform (2); the protective bracket comprises a protective bracket (1), wherein two ends of the protective bracket (1) are respectively connected with a lifting platform (2) through connecting devices (3), a protective net (101) is fixed on the inner side of the protective bracket (1), each connecting device (3) comprises a connecting block (104) and a fixed shell (103), the connecting blocks (104) are welded on two sides of the bottom surface of the protective bracket (1) respectively, a clamping block (105) is welded at one end of each connecting block (104), the fixed shell (103) is welded on one side of the bottom surface of the lifting platform (2), a baffle (106) is welded on the top of each fixed shell (103), a top hole (115) is formed in the center of the top of each fixed shell (103), a top block (109) is sleeved in each top hole (115), a spring clamping groove (108) is welded on the top of each top block (109), a compression spring (107) is sleeved on the top of each spring clamping groove (108), and the compression spring (107) is located at the bottom of each baffle (106), the two sides of the top block (109) are respectively welded with a guide block (111), one end of each guide block (111) is sleeved with a first rotating bolt (113), one end of each guide block (111) is provided with an L-shaped rotating block (110), the L-shaped rotating block (110) is connected with the first rotating bolt (113), the center of the bottom of the L-shaped rotating block (110) is welded with a triangular block (112), the bottom of the triangular block (112) is sleeved with a second rotating bolt (114), the second rotating bolt (114) is connected with a baffle (106), the inner wall of the bottom of the fixed shell (103) is welded with a sliding rail (119), the top of the sliding rail (119) is provided with a moving block (117), the center of the top of the moving block (117) is provided with a chute (118), the bottom of the top block (109) is provided with a rotating wheel (116), the rotating wheel (116) is located inside the chute (118), the center of one side of the fixed shell (103) is welded with a fixed frame (121), the fixed shell (103) and the center of the fixed frame (121) are both sleeved with a threaded column (120), one end of the threaded column (120) is connected with the moving block (117), the other end of the threaded column (120) is sleeved with a plurality of self-locking nuts (123), and the self-locking nuts (123) are sleeved on the outer side of the fixed frame (121).
2. The shock absorption and protection device for the building as claimed in claim 1, wherein a plurality of shock absorption elastic pieces (124) are welded at the bottom of the other end of the L-shaped rotating block (110), and a rubber pad (125) is bonded at the bottom of each shock absorption elastic piece (124).
3. The shock absorption and protection device for the building as claimed in claim 2, wherein the center of one end of the fixed housing (103) and the fixed frame (121) is provided with a threaded hole (122), and the threaded hole (122) is sleeved outside the threaded column (120).
4. The shock absorption and protection device for the building as claimed in claim 3, wherein bolt holes are opened at one end of the L-shaped rotation block (110) and one end of the guide block (111), and the bolt holes are sleeved outside the first rotation bolt (113).
5. The shock absorption and protection device for buildings according to claim 1, wherein a sliding block is welded at the bottom of the moving block (117) and is sleeved inside the sliding rail (119), when the protection net device is used, the clamping block is clamped at the top of the adjacent fixed shell, the L-shaped rotating block is clamped inside the clamping block, the self-locking nut is rotated clockwise, the self-locking nut drives the threaded column to extrude the moving block, the moving block moves to jack up the jacking block, the jacking block moves upwards to drive the guide block to move, the guide block drives the L-shaped rotating block to rotate, the L-shaped rotating block freely rotates through the second rotating bolt, the clamping block is clamped by rotating downwards at the other end of the L-shaped rotating block at the moment, fixation is completed, when an external impact occurs, the protection net drives the protection bracket to shake and extrude the shock absorption elastic sheet, and the shock absorption elastic sheet provides elastic buffering impact force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110908293.3A CN113585789A (en) | 2020-06-24 | 2020-06-24 | Shock attenuation protector for building |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110908293.3A CN113585789A (en) | 2020-06-24 | 2020-06-24 | Shock attenuation protector for building |
| CN202010588395.7A CN111706099B (en) | 2020-06-24 | 2020-06-24 | Climbing protection device for building |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010588395.7A Division CN111706099B (en) | 2020-06-24 | 2020-06-24 | Climbing protection device for building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113585789A true CN113585789A (en) | 2021-11-02 |
Family
ID=72543085
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010588395.7A Active CN111706099B (en) | 2020-06-24 | 2020-06-24 | Climbing protection device for building |
| CN202110908293.3A Withdrawn CN113585789A (en) | 2020-06-24 | 2020-06-24 | Shock attenuation protector for building |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010588395.7A Active CN111706099B (en) | 2020-06-24 | 2020-06-24 | Climbing protection device for building |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN111706099B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265946A (en) * | 2020-11-04 | 2021-01-26 | 国网河北省电力有限公司邢台市任泽区供电分公司 | Electric pole climbing device for field electric power overhaul |
| CN112382981B (en) * | 2020-11-19 | 2022-03-11 | 国网山东省电力公司桓台县供电公司 | Connecting device for in-out operation of strain insulator string of ultra-high voltage transmission line |
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| JPH06117094A (en) * | 1992-10-02 | 1994-04-26 | Kajima Corp | Slide formwork device for execution of all weather type concrete column |
| CN106112993A (en) * | 2016-08-22 | 2016-11-16 | 常州信息职业技术学院 | A kind of alternative expression climbing level robot |
| CN206929306U (en) * | 2017-07-20 | 2018-01-26 | 俞鉴卿 | A kind of double-track cam for feeding machine |
| CN209293856U (en) * | 2019-01-11 | 2019-08-23 | 神华宁夏煤业集团有限责任公司枣泉煤矿 | A kind of coal mine roadway safety detection device |
| CN110924699A (en) * | 2019-12-03 | 2020-03-27 | 天元建设集团有限公司 | Safe anti-falling device for constructional engineering construction |
| CN210798444U (en) * | 2019-08-27 | 2020-06-19 | 黄硕 | Communication tower for electronic information engineering |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480972B (en) * | 2009-01-20 | 2011-05-04 | 山东理工大学 | Multifunctional pole-climbing robot |
| CN201826542U (en) * | 2010-06-09 | 2011-05-11 | 北京星河人施工技术有限责任公司 | Self-climbing protective screening |
| CN107718029A (en) * | 2016-08-22 | 2018-02-23 | 徐勤凤 | A kind of adjustable clamper |
| CN108612298A (en) * | 2018-06-07 | 2018-10-02 | 重庆工业职业技术学院 | A kind of building outside climbing type CONSTRUCTION OPERATIONS platform |
| CN109972850A (en) * | 2019-04-25 | 2019-07-05 | 中建四局第一建筑工程有限公司 | It is a kind of can be with the safe guarding shed of creeping formwork synchronization lifting |
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2020
- 2020-06-24 CN CN202010588395.7A patent/CN111706099B/en active Active
- 2020-06-24 CN CN202110908293.3A patent/CN113585789A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06117094A (en) * | 1992-10-02 | 1994-04-26 | Kajima Corp | Slide formwork device for execution of all weather type concrete column |
| CN106112993A (en) * | 2016-08-22 | 2016-11-16 | 常州信息职业技术学院 | A kind of alternative expression climbing level robot |
| CN206929306U (en) * | 2017-07-20 | 2018-01-26 | 俞鉴卿 | A kind of double-track cam for feeding machine |
| CN209293856U (en) * | 2019-01-11 | 2019-08-23 | 神华宁夏煤业集团有限责任公司枣泉煤矿 | A kind of coal mine roadway safety detection device |
| CN210798444U (en) * | 2019-08-27 | 2020-06-19 | 黄硕 | Communication tower for electronic information engineering |
| CN110924699A (en) * | 2019-12-03 | 2020-03-27 | 天元建设集团有限公司 | Safe anti-falling device for constructional engineering construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111706099B (en) | 2021-10-29 |
| CN111706099A (en) | 2020-09-25 |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211102 |
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