CN113023597A - Self-adaptive arm support bracket system and engineering vehicle - Google Patents
Self-adaptive arm support bracket system and engineering vehicle Download PDFInfo
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- CN113023597A CN113023597A CN202110170652.XA CN202110170652A CN113023597A CN 113023597 A CN113023597 A CN 113023597A CN 202110170652 A CN202110170652 A CN 202110170652A CN 113023597 A CN113023597 A CN 113023597A
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- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 230000003044 adaptive effect Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000012938 design process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 230000003028 elevating effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C27/00—Fire-fighting land vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention relates to a self-adaptive boom support system and an engineering vehicle, which are applied to the technical field of engineering machinery and solve the technical problem of difficult assembly caused by uneven stress of a boom system, and the self-adaptive boom support system comprises a first boom and a second boom, wherein a boom support is arranged between the first boom and the second boom, the boom support comprises a fixed support and a support structure arranged on the fixed support, the support structure is provided with a first boom fixed support and a second boom support for supporting the first boom and the second boom, an upper and lower adjusting component is arranged between the second boom support and the first boom fixed support, and the second boom is adjusted to be flush with the first boom; a self-resetting component is arranged between the second arm support and the support mechanism, and supports the second arm support to limit the vertical position of the second arm support. The invention has the effects of adjusting random errors generated in the design and manufacturing processes, improving the coordination of the supporting force borne by the arm support system, avoiding fatigue damage caused by the generation of internal stress and improving the assembly efficiency.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a self-adaptive arm support bracket system and an engineering vehicle.
Background
With the rapid development of society and economy, building buildings are higher and higher, and fire safety becomes more and more a concern of people, so that a huge elevating fire truck with a certain operation height is required to be guaranteed. The elevating fire truck is divided into an elevating jet fire truck, an elevating platform fire truck and an aerial ladder fire truck, and the elevating jet fire truck, the elevating platform fire truck and the aerial ladder fire truck are all composed of components such as a special chassis, a rotary table, an arm support, an amplitude variation mechanism, an arm support bracket and the like. The boom support is mainly used for bearing the weight of the boom system in a running state together with the rotary table, and preventing the boom system from interfering with other parts of the fire fighting truck in the lifting and recovering processes.
At present, the development of domestic and foreign elevating fire fighting trucks gradually tends to be higher, larger and stronger, and due to the height limitation of national standards on road vehicles, the boom systems of the elevating fire fighting trucks with the height of meters are all side boom systems, so that the running height of the whole truck is reduced. The boom support system is one of main support components of the boom system, and due to design and manufacturing errors of the side boom system, the randomness of the height difference between the first boom and the second boom is large, so that the side boom system and the boom support system are difficult to match with each other, adjustment gaskets need to be added and reduced to compensate, the boom system is prone to uneven stress, and the assembly is difficult.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a self-adaptive arm support bracket system which has the advantages of adjusting random errors generated in the design and manufacturing processes, improving the coordination of the supporting force borne by the arm support system, avoiding fatigue damage caused by internal stress and improving the assembly efficiency.
The first technical object of the present invention is achieved by the following technical solutions: a self-adaptive arm support system comprises a first arm support and a second arm support, wherein an arm support is arranged between the first arm support and the second arm support, the arm support comprises a fixed support and a support structure arranged on the fixed support, the support structure is provided with a first arm support fixed support and a second arm support used for supporting the first arm support and the second arm support respectively, and an up-down adjusting assembly is arranged between the second arm support and the first arm support fixed support, so that the second arm support is adjusted to be flush with the first arm support; a self-resetting component is arranged between the second arm support and the support mechanism, so that the second arm support is supported to limit the vertical position of the second arm support.
Further setting: the upper and lower adjusting component comprises a fixed guide rail vertically arranged on one side of the first arm support fixed support and a sliding guide rail in sliding fit with the fixed guide rail, and the sliding guide rail is correspondingly arranged on the side surface, close to the first arm support fixed support, of the second arm support fixed support.
Further setting: the self-resetting assembly comprises a fixing plate horizontally arranged at the lower end of the second arm support and a self-resetting shaft penetrating through the fixing plate, the self-resetting shaft penetrates through the fixing plate, a compression spring is sleeved on the self-resetting shaft, one end of the compression spring is connected with the fixing plate, and the other end of the compression spring is connected with the lower end face of the second arm support.
Further setting: the self-resetting assembly comprises a fixing plate horizontally arranged at the lower end of the second arm support and a manual adjusting group positioned at the lower end of the fixing plate.
Further setting: the manual adjusting group comprises an adjusting sleeve arranged at the lower end of the fixing plate and an adjusting screw rod arranged in the adjusting sleeve, an adjusting nut is connected to the adjusting screw rod in a threaded mode, and the end portion of the adjusting screw rod is abutted to the lower end face of the second arm support.
The second purpose of the invention is to provide a self-adaptive boom support system, which has the advantages of realizing high-altitude rescue or high-altitude fire-fighting operation of a fire truck and improving the stability and safety of the operation.
The second objective of the above technology of the present invention is achieved by the following technical solutions: a work vehicle comprising: a vehicle body; the water supply device is arranged in the vehicle body; the adaptive boom support system of any of claims 1 to 5, being connected to said vehicle body.
Compared with the prior art, the invention has the following beneficial effects:
1. through the arrangement of the up-down adjusting assembly and the self-resetting assembly, the first arm fixing support is used for supporting and limiting the first arm support; the second arm support is placed on the second arm support, the second arm support can slide up and down in a certain range along the up-down adjusting assembly (the up-down adjusting assembly performs mechanical limiting, the stroke is 10 mm), the self-resetting mechanism is used for fixing the second arm support in the adjusting range and adjusting random errors generated in the design and manufacturing processes between the first arm support and the second arm support, the coordination of the supporting force borne by an arm support system is improved, the generation of internal stress to cause fatigue damage is avoided, and the assembling efficiency is improved.
2. Through the arrangement that the fixed guide rail and the sliding guide rail are matched with each other to slide, the second arm support can play a supporting role and also can play a limiting role on the second arm support.
3. Through the arrangement of the fixing plate, the self-resetting shaft and the compression spring, the randomness error between the second arm and the first arm can be compensated within the range of the guide rail stroke (10 mm) while the second arm support is effectively supported, the coordination of the supporting force borne by the arm support system is improved, and the fatigue damage caused by the generation of internal stress is avoided.
4. Through the arrangement of the fixing plate, the self-resetting shaft and the compression spring, the randomness error between the second arm and the first arm can be compensated within the range of the guide rail stroke (10 mm) while the second arm support is effectively supported, the coordination of the supporting force borne by the arm support system is improved, and the fatigue damage caused by the generation of internal stress is avoided.
5. The self-adaptive arm support bracket system is arranged on the vehicle body, so that the high-altitude rescue or high-altitude fire-fighting operation of the fire truck can be realized, and the stability and the safety of the operation can be improved.
Drawings
Fig. 1 is a schematic structural diagram of a support structure of an adaptive boom according to the embodiment;
FIG. 2 is a schematic structural view of a slide rail and a fixed rail of the present embodiment;
FIG. 3 is a schematic structural diagram of a self-resetting assembly according to one embodiment;
FIG. 4 is a schematic structural diagram of a self-resetting assembly according to one embodiment of the present invention;
fig. 5 is a schematic structural diagram of a boom support of the engineering vehicle in the embodiment in a top view.
In the figure: 1. a first arm support; 2. a second arm support; 3. a boom support; 31. a fixed support; 32. a scaffold structure; 321. a first arm support fixed support; 322. a second arm support; 33. an up-down adjustment assembly; 331. fixing the guide rail; 332. a sliding guide rail; 34. a self-resetting assembly; 341. a fixing plate; 342. a self-resetting shaft; 343. a compression spring; 344. a manual adjustment group; 3441. an adjusting sleeve; 3442. adjusting the screw rod; 3443. and adjusting the nut.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1, a self-adaptive boom support system includes a first boom 1 and a second boom 2, a boom support 3 is disposed between the first boom 1 and the second boom 2, the boom support 3 includes a fixed support 31 and a support structure 32 disposed on the fixed support 31, the support structure 32 is provided with a first boom fixed support 321 and a second boom support 322 for respectively supporting the first boom 1 and the second boom 2, and an up-down adjusting assembly 33 is disposed between the second boom support 322 and the first boom fixed support 321, so as to level the second boom 2 with the first boom 1; a self-reset component 34 is arranged between the second arm support 322 and the support mechanism, so that the position of the second arm support 322 in the vertical direction is limited.
The technical scheme shows that: the first boom fixing support 321 and the second boom support 322 are used for supporting and limiting a first boom 1 and a second boom 2, and the second boom support 322 is used for supporting and limiting a second boom 2, so that the boom is supported by uneven force due to random height errors between the first boom 1 and the second boom 2 generated in the design and manufacturing processes of a boom support 3 system; random height errors between the first arm support 1 and the second arm support 2 can be compensated through the up-and-down adjusting component 33, so that uniform supporting force is better provided for an arm support 3 system, stress coordination between the first arm support 1 and the second arm support 2 is ensured, the phenomenon of internal stress accelerated fatigue failure between the first arm support 1 and the second arm support 2 is avoided, and the service lives of the first arm support 1 and the second arm support 2 are prolonged; meanwhile, the self-resetting component 34 is used for fixing the second arm support 322 between the first arm support 1 and the second arm support 2, and is used for adjusting random errors generated in the design and manufacturing processes of the first arm support 1 and the second arm support 2.
In this embodiment, the up-down adjusting component 33 includes a fixed guide rail 331 vertically disposed on one side of the first arm support fixed support 321 and a sliding guide rail 332 slidably engaged with the fixed guide rail 331, and the sliding guide rail 332 is correspondingly disposed on a side surface of the second arm support 322 close to the first arm support fixed support 321. For example, referring to fig. 2, the fixed guide rail 331 is arranged along the vertical direction of the first arm support fixed support 321, the fixed guide rail 331 is provided with a dovetail groove, and the dovetail groove is arranged along the length direction of the fixed guide rail 331; the side surface of the sliding guide rail 332 close to the dovetail groove is provided with a dovetail block inserted into the dovetail groove, and the dovetail block and the dovetail groove are matched with each other. When random errors generated between the first arm support 1 and the second arm support 2 are adjusted, the second arm support 322 is driven to slide up and down along the height of the first arm support fixing support 321, namely, the dovetail block of the sliding guide rail 332 can slide up and down along the dovetail groove of the first arm support fixing support 321, so that the first arm support 1 and the second arm support 2 are flush, the random height errors are reduced, the supporting force between the arm supports is uniform, the stress is coordinated, and the service life of the arm support is prolonged. The shape between the fixed rail 331 and the sliding rail 332 is not limited to a dovetail groove or a dovetail block, and may be other shapes.
Referring to fig. 2, in the present embodiment, the self-resetting assembly 34 includes a fixing plate 341 horizontally disposed at a lower end of the second arm support seat 322 and a self-resetting shaft 342 penetrating through the fixing plate 341, wherein a bottom end of one end of the self-resetting shaft 342 is fixedly connected to the fixing plate 341, a compression spring 343 is sleeved on the self-resetting shaft 342, one end of the compression spring 343 is connected to the fixing plate 341, and the other end of the compression spring 343 is connected to a lower end surface of the second arm support seat 322, so that the second arm support seat 322 is limited on the first arm support seat 321. Further, an error range of 10mm is formed between the self-resetting shaft 342 and the lower end face of the second arm support 322, so that random errors generated in the design and manufacturing processes of the first arm support 2 and the second arm support 2 can be adjusted; therefore, the working adjustment principle is as follows: the first arm support 1 and the second arm support 2 are respectively placed on the first arm support fixed support 321 and the second arm support 322, in the supporting process, a sliding guide rail 332 on the second arm support 322 slides up and down along a fixed guide rail 331 of the first arm support fixed support 321 within a certain range, wherein the guide rails are limited, and the stroke of the guide rails is a =10 mm; when the sliding guide rail 332 and the fixed guide rail 331 slide up and down, the second arm support 322 slides up and down, and the compression spring 343 is compressed towards the direction of the fixed plate 341, so that random errors generated in the design and manufacturing processes of the first arm support 2 and the second arm support 2 are adjusted; the sliding guide rail limits the other freedom degrees of 5mm of the second arm support seat 322 except the up-and-down sliding freedom degree, so that the second arm can be ensured to fall on the second arm support seat 322 and can play a supporting role and a limiting role from the reset component 34.
Referring to fig. 3, in another embodiment, the self-resetting assembly 34 includes a fixing plate 341 horizontally disposed at a lower end of the second arm support seat 322 and a manual adjusting set 344 located at a lower end of the fixing plate 341, and specifically, the manual adjusting set 344 includes an adjusting sleeve 3441 disposed at a lower end of the fixing plate 341 and an adjusting screw 3442 disposed in the adjusting sleeve 3441, an adjusting nut 3443 is threadedly connected to the adjusting screw 3442, and an end of the adjusting screw 3442 abuts against a lower end surface of the second arm support seat 322. Specifically, adjustment screw 3442 is threadably coupled to adjustment sleeve 3441, and adjustment nut 3443 further defines the location of adjustment screw 3442 between adjustment sleeves 3441. When the first arm support 1 and the second arm support 2 are respectively placed on the first arm support fixed support 321 and the second arm support 322, in the supporting process, the sliding guide rail 332 on the second arm support 322 slides up and down along the fixed guide rail 331 of the first arm support fixed support 321 within a certain range, wherein the guide rails are limited, and the stroke of the guide rails is a =10 mm; when the sliding guide rail 332 and the fixed guide rail 331 slide up and down, the first arm support 1 and the second arm support 2 are balanced, the adjusting screw 3442 rotates in a threaded manner to support and limit the second arm support 2 on the second arm support 322, and the adjusting nut 3443 further limits the position of the second arm support 322 in the vertical direction, so that the self-resetting component 34 can achieve the effect of automatically adjusting the allowance.
In other embodiments, self-resetting assembly 34 is not limited to the above two configurations, but may be other configurations, including cylinders, motors, etc.; in other embodiments, self-reset assembly 34 is defined as appropriate and not specifically redundant herein.
Referring to fig. 5, in the present embodiment, an engineering vehicle provided by an embodiment of the present application includes a vehicle body (not shown in the figure); a water supply device (not shown) provided in the vehicle body; and the self-adaptive arm support bracket 3 system is connected to the vehicle body. The technical scheme shows that: the self-adaptive type arm support bracket 3 system is used for supporting and limiting the first arm support 1 and the second arm support 2, so that the second arm support 322 can move in the vertical direction, random errors generated in the design and manufacturing processes of the first arm support 2 and the second arm support 2 can be automatically adjusted, the first arm support 2 and the second arm support 2 are ensured to be stressed in a coordinated mode, and the problem that the arm support system generates internal stress to accelerate fatigue failure is avoided. In this embodiment, the engineering vehicle is a fire truck of a lifting type, and in other embodiments, the engineering vehicle may be other functional vehicles, and is not specifically redundant.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a self-adaptation formula cantilever crane mounting system, includes cantilever crane (1), No. two cantilever cranes (2), be equipped with cantilever crane support (3) between cantilever crane (1) and No. two cantilever cranes (2), cantilever crane support (3) include fixing support (31) and set up in supporting structure (32) on fixing support (31), be equipped with on supporting structure (32) and be used for supporting respectively cantilever crane fixing support (321) and No. two cantilever crane supports (322) of cantilever crane (1), No. two cantilever cranes (2), its characterized in that: an up-down adjusting component (33) is arranged between the second arm support (322) and the first arm support fixed support (321), so that the second arm support (2) is adjusted to be flush with the first arm support (1); a self-reset assembly (34) is arranged between the second arm support (322) and the support structure (32), so that the second arm support (2) support is supported to limit the vertical position of the second arm support.
2. The adaptive boom support system of claim 1, wherein: the up-down adjusting component (33) comprises a fixed guide rail (331) vertically arranged on one side of the first arm support fixed support (321) and a sliding guide rail (332) in sliding fit with the fixed guide rail (331), and the sliding guide rail (332) is correspondingly arranged on the side face, close to the first arm support fixed support (321), of the second arm support fixed support (322).
3. The adaptive boom support system of claim 1, wherein: the self-resetting assembly (34) comprises a fixing plate (341) horizontally arranged at the lower end of the second arm support (322) and a self-resetting shaft (342) penetrating through the fixing plate (341), a compression spring (343) is sleeved on the self-resetting shaft (342), one end of the compression spring (343) is connected with the fixing plate (341), and the other end of the compression spring (343) is connected with the lower end face of the second arm support (322).
4. The adaptive boom support system of claim 1, wherein: the self-resetting assembly (34) comprises a fixing plate (341) horizontally arranged at the lower end of the support of the second arm support (2) and a manual adjusting group (344) positioned at the lower end of the fixing plate (341).
5. The adaptive boom support system of claim 4, wherein: the manual adjusting group (344) comprises an adjusting sleeve (3441) arranged at the lower end of the fixing plate (341) and an adjusting screw rod (3442) arranged in the adjusting sleeve (3441), an adjusting nut (3443) is connected to the adjusting screw rod (3442) in a threaded manner, and the end of the adjusting screw rod (3442) is abutted to the lower end face of the second arm support (322).
6. A work vehicle, characterized by comprising: a vehicle body (4); a water supply device (5) arranged in the vehicle body (4); the adaptive boom support system according to any of claims 1 to 5, being connected to the vehicle body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110170652.XA CN113023597A (en) | 2021-02-08 | 2021-02-08 | Self-adaptive arm support bracket system and engineering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110170652.XA CN113023597A (en) | 2021-02-08 | 2021-02-08 | Self-adaptive arm support bracket system and engineering vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN113023597A true CN113023597A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110170652.XA Pending CN113023597A (en) | 2021-02-08 | 2021-02-08 | Self-adaptive arm support bracket system and engineering vehicle |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011073816A (en) * | 2009-09-30 | 2011-04-14 | Tadano Ltd | Boom support structure in boom storage of boom type working vehicle |
| CN103470682A (en) * | 2013-09-05 | 2013-12-25 | 中联重科股份有限公司 | Boom support device and engineering machinery |
| CN109939509A (en) * | 2017-12-20 | 2019-06-28 | 江苏亿茂滤材有限公司 | A kind of height-adjustable cylindric filter material |
| CN211818080U (en) * | 2020-03-23 | 2020-10-30 | 湖南工业职业技术学院 | Flexible arm support supporting device |
| CN211991594U (en) * | 2020-03-18 | 2020-11-24 | 青岛科尼乐集团有限公司 | Supporting device for welding pump truck arm support |
| CN212126830U (en) * | 2020-01-03 | 2020-12-11 | 上海绿谷(本溪)制药有限公司 | Loading attachment for construction |
-
2021
- 2021-02-08 CN CN202110170652.XA patent/CN113023597A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011073816A (en) * | 2009-09-30 | 2011-04-14 | Tadano Ltd | Boom support structure in boom storage of boom type working vehicle |
| CN103470682A (en) * | 2013-09-05 | 2013-12-25 | 中联重科股份有限公司 | Boom support device and engineering machinery |
| CN109939509A (en) * | 2017-12-20 | 2019-06-28 | 江苏亿茂滤材有限公司 | A kind of height-adjustable cylindric filter material |
| CN212126830U (en) * | 2020-01-03 | 2020-12-11 | 上海绿谷(本溪)制药有限公司 | Loading attachment for construction |
| CN211991594U (en) * | 2020-03-18 | 2020-11-24 | 青岛科尼乐集团有限公司 | Supporting device for welding pump truck arm support |
| CN211818080U (en) * | 2020-03-23 | 2020-10-30 | 湖南工业职业技术学院 | Flexible arm support supporting device |
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Application publication date: 20210625 |
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