CN113910429A - Concrete test block curing room - Google Patents
Concrete test block curing room Download PDFInfo
- Publication number
- CN113910429A CN113910429A CN202111282378.1A CN202111282378A CN113910429A CN 113910429 A CN113910429 A CN 113910429A CN 202111282378 A CN202111282378 A CN 202111282378A CN 113910429 A CN113910429 A CN 113910429A
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- Prior art keywords
- fixedly connected
- transmission
- curing room
- concrete test
- test block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
Abstract
The invention relates to the field of concrete test block equipment, in particular to a concrete test block curing room which comprises a curing room body, wherein the left end of the curing room body is provided with a switch door which is opened up and down, the lower end of the curing room body is provided with a waste material and dirt cleaning room, a transfer mechanism is arranged inside the curing room body, and the lower end of the curing room body is fixedly connected with a cleaning plate mechanism; wherein: the upper part of the left end of the curing room body is provided with a receiving shell, the opening and closing door is movably inserted in the receiving shell, and the upper part of the left end of the opening and closing door is fixedly connected with a first electric telescopic rod through a connecting block; the transport mechanism outside is braced frame, and braced frame's middle part activity is equipped with the roller bearing conveyer, the equal fixedly connected with second electric telescopic handle of lower extreme left and right sides of roller bearing conveyer, braced frame's upper end front and back side all is connected with the extension board. The invention is convenient for moving the concrete test block on the tray to the inside of the curing room through the structure of the transfer mechanism.
Description
Technical Field
The invention relates to the field of concrete equipment, in particular to a concrete test block curing room.
Background
The concrete curing room is specially used for: and (5) standard curing of the concrete test block and the cement test block at constant temperature and constant humidity. The curing room conforms to the latest national standard, and has wide application and great popularization value in highway traffic, railways, bridges, civil buildings, water conservancy, hydropower and scientific research institutions. The equipment is the most advanced standard curing facility for concrete and cement in the market, is identified by the national high and new technology, and is a key recommended product for the building science research institute and the detection center of the department of transportation.
However, when the concrete block curing room is used, concrete blocks are carried by workers when being loaded, which is very troublesome and wastes labor, and when the interior of the concrete block curing room is used for a long time, a large amount of waste materials and dust fall off from the ground, which is very troublesome to clean, so that the concrete block curing room is provided.
Disclosure of Invention
The invention aims to provide a concrete test block curing room,
the maintenance room comprises a maintenance room body, wherein a switch door which is opened up and down is arranged at the left end of the maintenance room body, a waste and dirt cleaning room is arranged at the lower end of the maintenance room body, a transfer mechanism is arranged inside the maintenance room body, and a cleaning plate mechanism is fixedly connected at the lower end of the maintenance room body;
wherein: the upper part of the left end of the curing room body is provided with a receiving shell, the opening and closing door is movably inserted in the receiving shell, and the upper part of the left end of the opening and closing door is fixedly connected with a first electric telescopic rod through a connecting block;
a supporting frame is arranged outside the transferring mechanism, a roller conveyer is movably arranged in the middle of the supporting frame, the left side and the right side of the lower end of the roller conveyer are fixedly connected with second electric telescopic rods, supporting plates are connected with the front side and the rear side of the upper end of the supporting frame, a thread block is fixedly connected with the lower side of the right end of each supporting plate, and a transmission screw rod penetrates through the middle of each thread block in an inserted manner;
the cleaning plate mechanism is characterized in that a connecting frame is arranged on the outer side of the cleaning plate mechanism, a transmission shell is fixedly connected to the front side of the upper end of the connecting frame, transmission gears and transition gears are connected to the transmission shell in a staggered and meshed mode, and the cleaning plate mechanism is fixedly connected to the rear side of a connecting rotating shaft in the middle of each transmission gear;
the middle part of the cleaning plate mechanism is a main plate, and the outer side of the main plate is sleeved with a heat insulation layer.
Preferably: the front side of the right end face of the switch door is fixedly connected with a transmission rack, the transmission rack is meshed with a transition gear on the left side, and the lower side of the transmission rack is movably inserted into a rectangular hole on the left side of the transmission shell.
Preferably: the lower end of the second electric telescopic rod is fixedly connected with a fixed support plate, and the front side and the rear side of the upper end face of the fixed support plate are fixedly connected to the lower end of the supporting frame through fixed plates.
Preferably: the screw thread direction of the front side and the back side of the transmission screw rod is opposite, the transmission motor is fixedly connected to the front end of the transmission screw rod and fixedly connected to the outer side wall of the supporting frame, the rectangular sliding groove is formed in the right side of the upper end of the supporting frame, and the thread block is movably inserted into the rectangular sliding groove.
Preferably: the upper end of the support plate is provided with a rectangular sliding groove, the bottom end of the rectangular sliding groove is fixedly connected with a sliding rail, and the left sides of opposite ends of the inner sides of the support plate and the support frame are provided with rectangular grooves.
Preferably: clearance board mechanism is equipped with a plurality ofly, clearance board mechanism equidistance is connected in linking frame's inside through connecting the pivot, the clearance board mechanism left and right sides is circular-arcly, the mainboard left and right sides is opened there is the dashpot, the outside fixedly connected with flexure strip of dashpot.
Preferably: the lower terminal surface of waste material filth clearance room is the inclined plane, there is the degree contained angle of right slope on inclined plane and horizontal plane, the left side of waste material filth clearance room is fixed to be pegged graft and is had spacing pipe, spacing pipe sets up with the driving rack relative from top to bottom, spacing pipe length is greater than the length of driving rack, lateral wall and the left side wall and the driving rack's around spacing pipe to laminating to face.
Preferably: the maintenance room body inner chamber lower part left and right sides fixedly connected with supports the dead lever, the landing leg of corresponding transport mechanism lower extreme is passed through bolt fixed connection to the upper end of supporting the dead lever.
Preferably: the upper end surface of the transmission shell and the horizontal plane have a forward inclined angle, and the upper end surface of the transmission shell is smooth.
Preferably: the left end of the middle rectangular opening of the supporting frame is open.
Compared with the prior art, the invention has the beneficial effects that:
1. by the structure provided with the transfer mechanism, when the concrete test block is placed on the tray, the tray can be transferred by the forklift and placed on the left side of the upper end of the transfer mechanism, then the second electric telescopic rod is started to drive the roller conveyer to move upwards, so that the roller conveyer jacks up the tray upwards, then the roller conveyer is started, the tray can be displaced rightwards, so that the concrete test blocks on the tray can be conveniently moved to the inside of the curing room, the transfer of the concrete test blocks is more convenient, and the displacement frame can be adopted to transfer the concrete test block, the transmission motor is started, the transmission motor can drive the transmission screw to rotate forwards and backwards, so that the two thread blocks move oppositely or reversely, thereby adjust the position between two extension boards, and satisfy the position size between the different gyro wheels to satisfy the displacement frame of different sizes.
2. According to the invention, the cleaning plate mechanism is used for moving the opening and closing door up and down, so that the transmission rack can move up and down along with the vertical movement of the opening and closing door, the transmission gear and the transition gear can be driven to rotate, the cleaning plate mechanism rotates 720 degrees forwards and backwards, and therefore, in the overturning process of the cleaning plate mechanism, waste dust at the upper end of the cleaning plate mechanism can be overturned into the waste cleaning chamber, dirt is gathered and then is treated in a centralized manner, and the falling waste and dust can be cleaned conveniently.
Drawings
FIG. 1 is a cross-sectional view of the overall construction of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is an overall view of the transfer mechanism of the present invention;
FIG. 4 is an enlarged view taken at A of FIG. 3 according to the present invention;
FIG. 5 is an integral connection of the drive rack, transition gear and transfer gear of the present invention;
FIG. 6 is a cross-sectional view of a cleaning plate mechanism of the present invention;
fig. 7 is an overall structural view of the transmission housing of the present invention.
In the figure:
1. a curing chamber body; 2. a housing case; 3. opening and closing the door; 4. a first electric telescopic rod; 5. a drive rack; 6. a transfer mechanism; 7. supporting the fixed rod; 8. a connecting frame; 9. a limiting pipe; 10. a waste cleaning chamber; 11. a cleaning plate mechanism; 12. a transmission gear; 13. a transition gear; 14. a transmission housing; 15. a rectangular hole;
61. a support frame; 62. a roller conveyor; 63. a second electric telescopic rod; 64. fixing a support plate; 65. a support plate;
66. a rectangular chute; 67. a thread block; 68. a rectangular chute; 69. a drive screw; 610. a drive motor; 611. a rectangular groove; 612. a slide rail;
111. a main board; 112. connecting the rotating shaft; 113. a heat-insulating layer; 114. a buffer tank; 115. an elastic sheet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 7, a concrete block curing room,
the maintenance room comprises a maintenance room body 1, wherein a switch door 3 which is opened up and down is arranged at the left end of the maintenance room body 1, a waste material and dirt cleaning room 10 is arranged at the lower end of the maintenance room body 1, a transfer mechanism 6 is arranged inside the maintenance room body 1, and a cleaning plate mechanism 11 is fixedly connected to the lower end of the maintenance room body 1;
wherein: the upper part of the left end of the curing room body 1 is provided with a containing shell 2, a switch door 3 is movably inserted in the containing shell 2, and the upper part of the left end of the switch door 3 is fixedly connected with a first electric telescopic rod 4 through a connecting block;
the outer side of the transfer mechanism 6 is provided with a support frame 61, the middle part of the support frame 61 is movably provided with a roller conveyer 62, the roller conveyer 62 adopts the existing conveyer on the market, the left side and the right side of the lower end of the roller conveyer 62 are fixedly connected with second electric telescopic rods 63, the front side and the rear side of the upper end of the support frame 61 are connected with a support plate 65, the lower side of the right end of the support plate 65 is fixedly connected with a threaded block 67, the middle part of the threaded block 67 is inserted with a transmission screw 69, and the transmission screw 69 rotates positively and negatively, so that the threaded block 67 can move relatively or reversely;
the outer side of the cleaning plate mechanism 11 is provided with a connecting frame 8, the front side of the upper end of the connecting frame 8 is fixedly connected with a transmission shell 14, a transmission gear 12 and a transition gear 13 are in staggered meshed connection in the transmission shell 14, the transmission gear 12 and the transition gear 13 can make the transmission rack 5 rotate forward and backward when moving up and down, the middle part of the transmission gear 12 is connected with the cleaning plate mechanism 11, the rear side of a rotating shaft 112 is fixedly connected with the cleaning plate mechanism 11, and the cleaning plate mechanism 11 can clean waste materials and dirt falling from the lower end of the inner cavity of the curing chamber body 1;
the middle part of the cleaning plate mechanism 11 is a main plate 111, and the outer side of the main plate 111 is sleeved with a heat insulation layer 113. The heat preservation layer 113 can increase the heat preservation performance of the lower end plate of the inner cavity of the curing chamber body 1.
The front side of the right end face of the switch door 3 is fixedly connected with a transmission rack 5, the transmission rack 5 is meshed with a transition gear 13 on the left side, and the lower side of the transmission rack 5 is movably inserted into a rectangular hole 15 on the left side of a transmission shell 14. The up-and-down displacement of the opening and closing door 3 can drive the transmission rack 5 to move up and down.
The lower end of the second electric telescopic rod 63 is fixedly connected with a fixed support plate 64, and the front side and the rear side of the upper end surface of the fixed support plate 64 are fixedly connected with the lower end of the supporting frame 61 through fixed plates. The second electric telescopic rod 63 adopts the existing telescopic rod on the market, and is externally connected with a power supply through a switch, and the second electric telescopic rod 63 moves up and down in order to drive the roller conveyor 62.
The front and back side screw thread direction of drive screw 69 is opposite, the front end fixedly connected with drive motor 610 of drive screw 69, and drive motor 610 fixed connection is at braced frame 61 lateral wall, and drive motor 610 adopts the current motor on the market, and is furnished with exclusive controller, controls drive motor 610's positive and negative rotation, braced frame 61's upper end right side is opened has rectangle spout 68, screw block 67 activity is pegged graft in the inside of rectangle spout 68. The transmission motor 610 can drive the transmission screw 69 to rotate forwards and backwards, so that the two thread blocks 67 move oppositely or reversely, and the position between the two support plates 65 can be adjusted to meet the position size between different rollers.
The upper end of the support plate 65 is provided with a rectangular sliding groove 66, the bottom end of the rectangular sliding groove 66 is fixedly connected with a sliding rail 612, and the left side of the opposite end of the inner side of the support plate 65 and the supporting frame 61 is provided with a rectangular groove 611. Rectangular channel 611 is for the fork arm of grafting fork truck, and slide rail 612 can be when using the support frame, and slide rail 612 is the support frame gyro wheel displacement orbit for the transportation of gyro wheel is more stable.
The lower terminal surface of waste material filth clean-up room 10 is the inclined plane, there is 45 degrees contained angles of right slope on inclined plane and horizontal plane, the left side of waste material filth clean-up room 10 is fixed to be pegged graft and is had spacing pipe 9, spacing pipe 9 sets up with driving rack 5 from top to bottom relatively, spacing pipe 9 length is greater than driving rack 5's length, lateral wall and left side wall and driving rack 5's the opposite laminating of orientation around spacing pipe 9. Spacing pipe 9 is for grafting driving rack 5 to avoid the waste material that falls to damage driving rack 5, the downside of spacing pipe 9 can be pegged graft inside the soil.
The maintenance room comprises a maintenance room body 1, wherein supporting fixing rods 7 are fixedly connected to the left side and the right side of the lower portion of an inner cavity of the maintenance room body 1, and the upper ends of the supporting fixing rods 7 are fixedly connected with supporting legs at the lower ends of corresponding transfer mechanisms 6 through bolts. The supporting and fixing rod 7 is used for supporting the transfer mechanism 6.
The upper end surface of the transmission shell 14 forms a forward inclined 45-degree included angle with the horizontal plane, and the upper end surface of the transmission shell 14 is smooth. The presence of a forward 45 degree included angle prevents large particle waste material from falling onto the upper end face of the transmission housing 14.
The left end of the middle rectangular opening of the supporting frame 61 is open. Open and carry out the material loading when can convenient to use layer board use.
The working process and principle of the invention are as follows: when the device is used, when concrete test blocks are placed on the tray, the tray can be transported by a forklift and placed on the left side of the upper end of the transport mechanism 6, then the second electric telescopic rod 63 is started to drive the roller conveyor 62 to move upwards, so that the roller conveyor 62 jacks up the tray, then the roller conveyor 62 is started, the tray can be moved rightwards, and the concrete test blocks on the tray can be conveniently moved into a curing room;
when the concrete test block is placed on the displacement frame, four corners of the lower end of the displacement frame are connected with idler wheels through support rods, the inner side of the lower end of the displacement frame is provided with four idler wheels which are connected again, the height from the lower ends of the four idler wheels to the ground is equal to the distance from the lower ends of the rectangular sliding grooves 66 to the ground, so that the four idler wheels can be positioned in the rectangular sliding grooves 66, the displacement frame can be pushed to the upper end of the transfer mechanism 6, the transmission motor 610 is started, the transmission motor 610 can drive the transmission screw 69 to rotate forwards and backwards, the two thread blocks 67 move oppositely or reversely, the position between the two support plates 65 is adjusted, the position size between different idler wheels is met, and when the support frame is used, the roller conveyor 62 is accommodated at the lower part of the inner side of the support frame 61;
when the integral structure is used for feeding or taking materials, the first electric telescopic rod 4 is started to drive the switch door 3 to be opened or closed, so that the switch door 3 is moved up and down, the transmission rack 5 is moved up and down along with the up and down movement of the switch door 3, the transmission gear 12 and the transition gear 13 are driven to rotate, the cleaning plate mechanism 11 is driven to rotate for 720 degrees in the positive and negative directions, and therefore, in the overturning process of the cleaning plate mechanism 11, waste dust at the upper end of the cleaning plate mechanism 11 can be overturned into the waste dirt cleaning chamber 10 to gather dirt so as to be intensively treated;
and in the turnover process of the cleaning plate mechanism 11, when the cleaning plate mechanism is in a horizontal state after being turned over, the cleaning plate mechanism 11 is mutually extruded and attached due to the existence of the elastic sheet 115, and the sealing degree of the cleaning plate mechanism 11 in the horizontal state is increased, so that the heat loss is reduced when the integral structure heats the inside.
While the invention has been described in further detail in connection with specific embodiments thereof, it will be understood that the invention is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention, which should be considered to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. Concrete test block curing chamber, its characterized in that:
the maintenance room comprises a maintenance room body (1), wherein a switch door (3) which is opened up and down is arranged at the left end of the maintenance room body (1), a waste material and dirt cleaning room (10) is arranged at the lower end of the maintenance room body (1), a transfer mechanism (6) is arranged inside the maintenance room body (1), and a cleaning plate mechanism (11) is fixedly connected at the lower end of the maintenance room body (1);
wherein: a containing shell (2) is arranged at the upper part of the left end of the curing room body (1), the switch door (3) is movably inserted in the containing shell (2), and the upper part of the left end of the switch door (3) is fixedly connected with a first electric telescopic rod (4) through a connecting block;
a supporting frame (61) is arranged on the outer side of the transfer mechanism (6), a roller conveyor (62) is movably arranged in the middle of the supporting frame (61), the left side and the right side of the lower end of the roller conveyor (62) are fixedly connected with second electric telescopic rods (63), the front side and the rear side of the upper end of the supporting frame (61) are connected with supporting plates (65), a threaded block (67) is fixedly connected to the lower side of the right end of each supporting plate (65), and a transmission screw (69) penetrates through the middle of each threaded block (67) in an inserted manner;
a connecting frame (8) is arranged on the outer side of the cleaning plate mechanism (11), a transmission shell (14) is fixedly connected to the front side of the upper end of the connecting frame (8), transmission gears (12) and transition gears (13) are connected to the inside of the transmission shell (14) in a staggered and meshed mode, and the cleaning plate mechanism (11) is fixedly connected to the rear side of a middle connecting rotating shaft (112) of the transmission gears (12);
the middle part of the cleaning plate mechanism (11) is a main plate (111), and a heat insulation layer (113) is sleeved on the outer side of the main plate (111).
2. The concrete test block curing room of claim 1, wherein: the front side of the right end face of the switch door (3) is fixedly connected with a transmission rack (5), the transmission rack (5) is meshed with a transition gear (13) on the left side, and the lower side of the transmission rack (5) is movably inserted into a rectangular hole (15) on the left side of a transmission shell (14).
3. The concrete test block curing room of claim 1, wherein: the lower end of the second electric telescopic rod (63) is fixedly connected with a fixed support plate (64), and the front side and the rear side of the upper end face of the fixed support plate (64) are fixedly connected to the lower end of the supporting frame (61) through fixed plates.
4. The concrete test block curing room of claim 1, wherein: the front side and the rear side of the transmission screw rod (69) are opposite in thread direction, the front end of the transmission screw rod (69) is fixedly connected with a transmission motor (610), the transmission motor (610) is fixedly connected to the outer side wall of the supporting frame (61), the right side of the upper end of the supporting frame (61) is provided with a rectangular sliding groove (68), and the thread block (67) is movably inserted into the rectangular sliding groove (68).
5. The concrete test block curing room of claim 1, wherein: the upper end of the support plate (65) is provided with a rectangular sliding groove (66), the bottom end of the rectangular sliding groove (66) is fixedly connected with a sliding rail (612), and the left side of the opposite end of the inner side of the support plate (65) and the supporting frame (61) is provided with a rectangular groove (611).
6. The concrete test block curing room of claim 1, wherein: clearance board mechanism (11) are equipped with a plurality ofly, clearance board mechanism (11) equidistance is connected in the inside of linking frame (8) through connecting pivot (112), clearance board mechanism (11) left and right sides is circular-arcly, mainboard (111) left and right sides is opened there is dashpot (114), the outside fixed connection of dashpot (114) has flexible piece (115).
7. The concrete test block curing room of claim 1, wherein: the lower terminal surface of waste material filth clean-up room (10) is the inclined plane, there is 45 degrees contained angles to the right slope on inclined plane and horizontal plane, the left side of waste material filth clean-up room (10) is fixed to be pegged graft and is had spacing pipe (9), relative setting from top to bottom of spacing pipe (9) and driving rack (5), spacing pipe (9) length is greater than the length of driving rack (5), the laminating to opposite of lateral wall and left side wall and driving rack (5) around spacing pipe (9).
8. The concrete test block curing room of claim 1, wherein: the maintenance room is characterized in that supporting and fixing rods (7) are fixedly connected to the left side and the right side of the lower portion of an inner cavity of the maintenance room body (1), and supporting legs are fixedly connected to the upper ends of the supporting and fixing rods (7) and are arranged at the lower ends of corresponding transfer mechanisms (6).
9. The concrete test block curing room of claim 1, wherein: an included angle of 45 degrees which inclines forwards exists between the upper end face of the transmission shell (14) and the horizontal plane, and the upper end face of the transmission shell (14) is smooth.
10. The concrete test block curing room of claim 1, wherein: the left end of the middle rectangular opening of the supporting frame (61) is open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111282378.1A CN113910429B (en) | 2021-11-01 | 2021-11-01 | Concrete test block curing room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111282378.1A CN113910429B (en) | 2021-11-01 | 2021-11-01 | Concrete test block curing room |
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| Publication Number | Publication Date |
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| CN113910429A true CN113910429A (en) | 2022-01-11 |
| CN113910429B CN113910429B (en) | 2022-11-25 |
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|---|---|---|---|---|
| JP2007302470A (en) * | 2006-05-15 | 2007-11-22 | Sintokogio Ltd | Material transfer device for grid-like pallet |
| CN108313716A (en) * | 2018-01-31 | 2018-07-24 | 谢燕玲 | A kind of concrete test block maintenance handling device |
| CN108858724A (en) * | 2018-05-25 | 2018-11-23 | 厦门市易八装饰设计有限公司 | A kind of concrete test block maintenance handling device |
| CN209127885U (en) * | 2018-10-31 | 2019-07-19 | 四川国泰高新管廊产业投资有限公司 | A kind of concrete test block maintenance handling device |
| CN210943760U (en) * | 2019-11-07 | 2020-07-07 | 全椒广亚新型建材有限公司 | Building block transfer device |
| CN214166358U (en) * | 2020-12-28 | 2021-09-10 | 中建科技(湖州)有限公司 | Automatic transfer equipment for concrete blocks |
-
2021
- 2021-11-01 CN CN202111282378.1A patent/CN113910429B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007302470A (en) * | 2006-05-15 | 2007-11-22 | Sintokogio Ltd | Material transfer device for grid-like pallet |
| CN108313716A (en) * | 2018-01-31 | 2018-07-24 | 谢燕玲 | A kind of concrete test block maintenance handling device |
| CN108858724A (en) * | 2018-05-25 | 2018-11-23 | 厦门市易八装饰设计有限公司 | A kind of concrete test block maintenance handling device |
| CN209127885U (en) * | 2018-10-31 | 2019-07-19 | 四川国泰高新管廊产业投资有限公司 | A kind of concrete test block maintenance handling device |
| CN210943760U (en) * | 2019-11-07 | 2020-07-07 | 全椒广亚新型建材有限公司 | Building block transfer device |
| CN214166358U (en) * | 2020-12-28 | 2021-09-10 | 中建科技(湖州)有限公司 | Automatic transfer equipment for concrete blocks |
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| CN113910429B (en) | 2022-11-25 |
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