CN115012459B - Be used for high-rise building foundation ditch engineering detection device - Google Patents
Be used for high-rise building foundation ditch engineering detection device Download PDFInfo
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- CN115012459B CN115012459B CN202210657348.2A CN202210657348A CN115012459B CN 115012459 B CN115012459 B CN 115012459B CN 202210657348 A CN202210657348 A CN 202210657348A CN 115012459 B CN115012459 B CN 115012459B
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- clamping assembly
- sensor
- rise building
- clamping
- foundation pit
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- 238000001514 detection method Methods 0.000 title claims abstract description 14
- 238000001125 extrusion Methods 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 9
- 238000007689 inspection Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims 1
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 15
- 230000000694 effects Effects 0.000 description 12
- 238000010276 construction Methods 0.000 description 8
- 238000005056 compaction Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 235000014121 butter Nutrition 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
Abstract
The invention discloses a foundation pit engineering detection device for a high-rise building, which belongs to the field of building detection and comprises a host machine and a sensor connected with the host machine, wherein a pressing device for fixing the position of the sensor is detachably arranged on the host machine, the pressing device comprises a pressing plate for pressing the position of the sensor and clamping assemblies symmetrically arranged at two ends of the pressing plate and used for clamping foundation piles, and the pressing plate is provided with a groove for clamping the sensor and an opening for a cable on the sensor to pass through.
Description
Technical Field
The invention discloses a foundation pit engineering detection device for a high-rise building, and belongs to the field of building detection.
Background
The foundation pit monitoring is an important link in foundation pit engineering construction, and is to conduct various observation and analysis work on the characteristics of foundation pit rock and soil, the deflection of supporting structures and the change of surrounding environment conditions in the foundation pit excavation and underground engineering construction process, timely feed back monitoring results, predict the deformation and the development of stable states which are caused after further excavation construction, and instruct design and construction according to the prediction and judge the influence degree of the construction on the surrounding environment so as to realize informationized construction.
The foundation pit is required to be excavated in high-rise building construction, foundation pit monitoring is required to detect the pile body integrity of a foundation pile after pile driving is completed by using a foundation pile dynamic measuring instrument, the operation of pouring concrete can be carried out after the pile body is determined to be complete, the existing foundation pile dynamic measuring instrument is used for treating a pile head before a test, the pile head concrete is not loosened or isolated, the pile head concrete is required to be a smooth and good concrete surface, a test point is required to be polished to a 5cm plane by using a polishing machine, and the plane is required to be horizontal and smooth. And after the pile head is processed, connecting the host and the sensor, bonding the sensor on the pile head measuring point by using adhesive coupling agents such as butter, plasticine and the like, and compacting the sensor. And finally, opening the host, setting various parameters, making various original records, requiring a vibration beating person to beat the designated part of the pile head, and observing the acquisition signal.
However, when the position of the sensor is pressed, the pile head needs to be knocked for multiple times to detect in order to ensure the detection precision, the manual pressing time is too long, the manual acid is easy to appear and the pressing is poor, or the situation that the position of the sensor is driven to move by the manual acid carelessly occurs, so that the detection data is inaccurate, and the problem that multiple checks are needed occurs.
Disclosure of Invention
The invention aims to solve the problems and provide a detection device for foundation pit engineering of a high-rise building.
The invention realizes the aim through the following technical scheme, and is used for a high-rise building foundation pit engineering detection device, and the high-rise building foundation pit engineering detection device comprises a host machine and a sensor connected with the host machine, wherein a pressing device for fixing the position of the sensor is detachably arranged on the host machine, the pressing device comprises a pressing plate for pressing the position of the sensor and clamping assemblies symmetrically arranged at two ends of the pressing plate and used for clamping foundation piles, and the pressing plate is provided with a groove for clamping the sensor and an opening for passing a cable on the sensor.
Through adopting above-mentioned technical scheme, take down closing device, earlier through the opening with the pressure strip cover on the sensor, then with the sensor with butter, adhesive couplant such as plasticine bond back on the pile head measurement station, rethread recess will press the pressure strip on the sensor, the both sides of rethread clamping assembly centre gripping foundation pile to realize compressing tightly the pressure strip position fixing, and then do not need people to compress tightly with the hand, reduce people working strength, and guarantee the stable compaction to the sensor.
Preferably, the clamping assembly comprises a moving part, an abutting part and a first threaded rod, wherein the moving part is in sliding connection with the pressing plate, the abutting part is arranged on the moving part in a sliding mode and used for abutting against the side wall of the foundation pile, the first threaded rod is used for pushing the abutting part to slide, and the first threaded rod is arranged on the moving part in a rotating mode and is in threaded connection with the abutting part.
Through adopting above-mentioned technical scheme, rotatory first threaded rod drives the butt piece and moves downwards for the butt piece stretches out the moving part outside, then promotes the moving part again and removes, makes butt piece and foundation pile lateral wall looks butt, realizes forming the centre gripping effect to the foundation pile.
Preferably, the extension subassembly that is used for increasing clamping component travel distance is provided with in the slip of clamp plate and clamping component junction, the fixed guide rail that is used for guiding extension subassembly direction of movement that is provided with of clamp plate, set up on the extension subassembly and be used for the gliding logical groove of clamping component.
Through adopting above-mentioned technical scheme, can adjust clamping assembly position according to the different sizes of foundation pile, increase application scope.
Preferably, the guide rod for guiding the sliding direction of the clamping assembly is fixedly arranged in the through groove, the positioning piece for fixing the position of the clamping assembly is also slidably arranged in the clamping assembly, the positioning piece is abutted to the guide rod, one end of the positioning piece extends to the outer side of the clamping assembly, and an elastic layer for pushing the positioning piece to be abutted to the guide rod is arranged at the other end of the positioning piece.
Through adopting above-mentioned technical scheme, when readjusting clamping assembly position, need press the setting element earlier and remove downwards for setting element and guide bar phase separation make clamping assembly be in active state, then remove suitable position after removing the external force to the setting element again, elastic layer release elasticity thrust promotes setting element position to reset and guide bar looks butt, realizes the fixed to clamping assembly position.
Preferably, the extension assembly further comprises an extrusion part for abutting against the guide rail, a transmission part for pushing the extrusion part to move towards the direction close to the guide rail, and a second threaded rod in threaded connection with the transmission part, wherein the mutual abutting surfaces of the extrusion part and the transmission part are all inclined planes, the second threaded rod is rotatably arranged on the extension assembly, and one end of the second threaded rod extends to the outer side of the extension assembly.
Through adopting above-mentioned technical scheme, rotatory second threaded rod drives the driving medium and reciprocates, forms the extrusion effect with the extrusion piece, utilizes the inclined plane that extrusion piece and driving medium laminate each other to form the component, promotes two extrusion pieces to being close to the guide rail direction and remove, forms the butt effect to the guide rail, and then fixes the position of extension subassembly.
Preferably, the pressing plate is also provided with a sealing block for closing the opening in a sliding manner.
Through adopting above-mentioned technical scheme for when the pressure strip compresses tightly the sensor, the sealing block provides holding power in the open position, avoids causing the pressure strip to appear breaking easily in the open position.
Preferably, a protecting sleeve is fixedly arranged at the joint of the host and the pressing device, and an elastic strip for abutting against the pressing device is arranged on the protecting sleeve.
By adopting the technical scheme, the protecting sleeve is utilized to play a role in protecting the compacting device.
Compared with the prior art, the invention has the beneficial effects that:
1. the manual compaction is replaced by compaction by the compaction plate, so that the working intensity of people is reduced, and the stability of the compaction effect is ensured;
2. the foundation piles with different sizes can be adapted by moving the clamping assembly, and the application range is ensured.
Drawings
FIG. 1 is a schematic diagram of a construction of a detection device for foundation pit engineering of a high-rise building according to the present invention;
FIG. 2 is a schematic diagram II of a construction of the inspection device for foundation pit engineering of a high-rise building according to the present invention;
FIG. 3 is a schematic view of the connection structure of the compressing device and the protecting sleeve of the present invention;
FIG. 4 is a schematic view of the structure of the compressing apparatus of the present invention;
FIG. 5 is a schematic view of a cut-away connection structure of the compression device and the protective sleeve of the present invention;
FIG. 6 is a schematic view of a compressing apparatus according to the present invention;
FIG. 7 is a schematic diagram of a compressing apparatus according to the second embodiment of the present invention;
fig. 8 is a schematic structural view of the extension module of the present invention.
Reference numerals: 1. a host; 2. a sensor; 3. a compacting device; 4. a compacting plate; 5. a clamping assembly; 501. a moving member; 502. an abutment; 503. a first threaded rod; 504. a positioning piece; 505. an elastic layer; 6. a groove; 7. an opening; 8. an extension assembly; 801. a through groove; 802. a guide rod; 803. an extrusion; 804. a transmission member; 805. a second threaded rod; 9. a guide rail; 10. a sealing block; 11. a protective sleeve; 12. an elastic strip.
Detailed Description
In the following description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-8, a detection device for foundation pit engineering of high-rise building comprises a host machine 1 and a sensor 2 connected with the host machine 1, wherein a pressing device 3 used for fixing the position of the sensor 2 is detachably arranged on the host machine 1, a protecting sleeve 11 is fixedly arranged at the joint of the host machine 1 and the pressing device 3, the pressing device 3 can be prevented from colliding with an external object when the host machine 1 is placed by the protecting sleeve 11, and meanwhile, an elastic strip 12 used for abutting the pressing device 3 is arranged on the protecting sleeve 11, the elastic strip 12 is made of rubber, and an elastic clamping effect is formed on the pressing device 3 through elastic deformation of the rubber. Simultaneously closing device 3 is including being used for compressing tightly the clamping assembly 5 that clamping assembly 4 both ends are used for the centre gripping foundation pile of pressure strip 4 and symmetry setting up in pressure strip 4 position, offer the recess 6 that is used for joint sensor 2 on the pressure strip 4, the connection fastness when utilizing recess 6 to strengthen pressure strip 4 to compress tightly sensor 2, and still offer the opening 7 that is used for the cable to pass on the sensor 2 on the pressure strip 4, thereby avoid the cable to take place to buckle, still slide on the pressure strip 4 simultaneously and be provided with the sealing block 10 that is used for sealing opening 7, make pressure strip 4 compress tightly sensor 2, sealing block 10 provides the holding power in opening 7 position, avoid causing pressure strip 4 to appear the fracture easily in opening 7 position, strengthen the bulk strength of pressure strip 4.
The clamping assembly 5 comprises a moving part 501 which is slidably connected with the compacting plate 4, an abutting part 502 which is slidably arranged on the moving part 501 and used for abutting against the side wall of a foundation pile, and a first threaded rod 503 which is used for pushing the abutting part 502 to slide, so that according to different specifications of the foundation pile, the position of the moving part 501 on the compacting plate 4 is adjusted, the clamping effect brought by the abutting part 502 is guaranteed, meanwhile, the first threaded rod 503 is rotationally arranged on the moving part 501 and is in threaded connection with the abutting part 502, the abutting part 502 is driven to move downwards or downwards by the first threaded rod 503 through rotation in different directions, the abutting part 502 is controlled to extend out of or retract into the moving part 501, good self-locking performance is achieved through threaded connection, and therefore the fixing of the position of the abutting part 502 is guaranteed after the first threaded rod 503 rotates, and the clamping effect is guaranteed.
And the extension subassembly 8 that is used for increasing clamping subassembly 5 travel distance is provided with in the extension of clamp plate 4 and clamping subassembly 5 junction to when the specification of foundation pile is greater than the length of clamp plate 4, increase clamping subassembly 5's movable distance through removing extension subassembly 8, and then increase application scope, wherein fixed guide rail 9 that is used for guiding extension subassembly 8 travel direction that is provided with of clamp plate 4, utilize guide rail 9 to guarantee extension subassembly 8 gliding stability on clamp plate 4, set up on the extension subassembly 8 simultaneously and be used for clamping subassembly 5 gliding logical groove 801, logical inslot 801 is fixed to be provided with the guide bar 802 that guides clamping subassembly 5 travel direction, utilize guide bar 802 to guarantee clamping subassembly 5 position stability when moving, people also can directly apply external force through guide bar 802 when taking off closing device 3 from host computer 1 and pull closing device 3 and break away from host computer 1 simultaneously. And wherein clamping assembly 5 is inside still to slide and is provided with the setting element 504 that is used for fixing clamping assembly 5 position, setting element 504 and guide bar 802 butt, and one end extends to clamping assembly 5's outside, thereby when adjusting clamping assembly 5 position, it moves down to need to press setting element 504 earlier, make setting element 504 separate with guide bar 802, make clamping assembly 5 be in the active state, then move to suitable position afterwards, after removing the external force to setting element 504, and the other end of setting element 504 is provided with the elastic layer 505 that promotes setting element 504 and guide bar 802 butt, elastic layer 505 adopts elastic rubber to make, can exert pressure to elastic layer 505 when making setting element 504 move down, elastic layer 505 forms and is in the compression energy storage state, after people remove external force, elastic layer 505 releases elastic thrust and promotes setting element 504 position to reset and guide bar 802 butt, realize the fixed to clamping assembly 5 position.
The extension assembly 8 further comprises an extrusion 803 used for abutting against the guide rail 9, a transmission piece 804 pushing the extrusion 803 to move towards the direction close to the guide rail 9, and a second threaded rod 805 in threaded connection with the transmission piece 804, the second threaded rod 805 is rotatably arranged on the extension assembly 8, one end of the second threaded rod 805 extends to the outer side of the extension assembly 8, the second threaded rod 805 is rotated in different directions to drive the transmission piece 804 to move downwards or upwards, the mutually abutting surfaces of the extrusion 803 and the transmission piece 804 are all inclined surfaces, so that when the extrusion 803 and the transmission piece 804 are mutually abutted and extruded, component force is formed by the inclined surfaces to push the two extrusion 803 to move towards the direction close to the guide rail 9, an abutting effect on the guide rail 9 is formed, the position of the extension assembly 8 is fixed, otherwise, the abutting effect is removed, and the extension assembly 8 is in an active state.
Working principle: after the pile head is processed, the pressing device 3 is taken down from the host 1, then the host 1 and the sensor 2 are connected, the sensor 2 is adhered to a pile head measuring point by using adhesive coupling agents such as butter, plasticine and the like, the opening 7 is opened by moving the pushing sealing block 10, a cable passes through the pressing plate 4, the pressing plate 4 is positioned above the sensor 2, then the sealing block 10 is pushed to reset the opening 7, then the second threaded rod 805 is rotated to drive the transmission piece 804 to move upwards according to the size of the foundation pile, the abutting effect between the transmission piece 804 and the extrusion piece 803 disappears, so that the position of the moving extension component 8 on the pressing plate 4 is moved to a proper position, then the second threaded rod 805 is reversely rotated to drive the transmission piece 803 to move downwards, the extrusion piece 803 forms an extrusion effect, the inclined planes of the extrusion piece 804 and the transmission piece 804 are utilized to form a component force, the two extrusion pieces 803 are pushed to move towards the direction close to the guide rail 9, the abutting effect of the guide rail 9 is formed, then the position of the extending component 8 is fixed, the first threaded rod 503 is rotated to drive the abutting piece 502 to move downwards, the abutting piece 502 stretches out of the moving piece 502, then the moving piece 504 is pushed out of the outer side piece 502 to drive the transmission piece 804 to move upwards, the pressing piece 504 is pushed to move the groove 802, the sensor 504 is pushed to move the pressing piece 502 to the position of the pressing piece 502 is separated from the position of the transmission piece 803, then the positioning piece 501 is positioned on the side wall is positioned by the side wall, and the positioning piece 501 is positioned to be separated from the position of the positioning piece 501, and then the positioning piece is positioned to move the opposite to the positioning piece 502.
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 characteristics 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 disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. Be used for high-rise building foundation ditch engineering detection device, a serial communication port, including host computer (1) and sensor (2) that are connected with host computer (1), dismantle on host computer (1) and be provided with closing device (3) that are used for fixed sensor (2) position, closing device (3) are including being used for closing down clamp plate (4) and the symmetry setting at clamp plate (4) both ends are used for clamping foundation pile's clamping assembly (5), set up recess (6) that are used for joint sensor (2) and opening (7) that are used for cable to pass through on sensor (2) on clamp plate (4).
2. The inspection device for high-rise building foundation pit engineering according to claim 1, wherein: the clamping assembly (5) comprises a moving part (501) which is slidably connected with the pressing plate (4), an abutting part (502) which is slidably arranged on the moving part (501) and used for abutting against the side wall of the foundation pile, and a first threaded rod (503) which is used for pushing the abutting part (502) to slide, wherein the first threaded rod (503) is rotatably arranged on the moving part (501) and is in threaded connection with the abutting part (502).
3. The inspection device for foundation pit engineering of high-rise building according to any one of claims 1-2, wherein: the clamping device is characterized in that an extension assembly (8) for increasing the moving distance of the clamping assembly (5) is slidably arranged at the joint of the clamping assembly (5) and the compression plate (4), a guide rail (9) for guiding the moving direction of the extension assembly (8) is fixedly arranged on the compression plate (4), and a through groove (801) for sliding of the clamping assembly (5) is formed in the extension assembly (8).
4. A foundation pit engineering inspection device for high-rise buildings according to claim 3, wherein: guide rods (802) for guiding the sliding direction of the clamping assembly (5) are fixedly arranged in the through grooves (801), positioning pieces (504) for fixing the positions of the clamping assembly (5) are further arranged in the clamping assembly (5) in a sliding mode, the positioning pieces (504) are abutted to the guide rods (802), one ends of the positioning pieces extend to the outer sides of the clamping assembly (5), and elastic layers (505) for pushing the positioning pieces (504) to be abutted to the guide rods (802) are arranged at the other ends of the positioning pieces.
5. The inspection device for high-rise building foundation pit engineering according to claim 4, wherein: extension subassembly (8) still include extrusion piece (803) that are used for butt guide rail (9), promote extrusion piece (803) to be close to driving medium (804) that guide rail (9) direction removed and with driving medium (804) threaded connection's second threaded rod (805), extrusion piece (803) all set up to the inclined plane with driving medium (804) mutual laminating face, second threaded rod (805) rotate and set up on extension subassembly (8) to one end extends to the outside of extension subassembly (8).
6. The inspection device for high-rise building foundation pit engineering according to claim 1, wherein: the pressing plate (4) is also provided with a sealing block (10) for closing the opening (7) in a sliding manner.
7. The inspection device for high-rise building foundation pit engineering according to claim 1, wherein: the device is characterized in that a protecting sleeve (11) is fixedly arranged at the joint of the host machine (1) and the compressing device (3), and an elastic strip (12) used for being abutted to the compressing device (3) is arranged on the protecting sleeve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210657348.2A CN115012459B (en) | 2022-06-10 | 2022-06-10 | Be used for high-rise building foundation ditch engineering detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210657348.2A CN115012459B (en) | 2022-06-10 | 2022-06-10 | Be used for high-rise building foundation ditch engineering detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115012459A CN115012459A (en) | 2022-09-06 |
| CN115012459B true CN115012459B (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210657348.2A Active CN115012459B (en) | 2022-06-10 | 2022-06-10 | Be used for high-rise building foundation ditch engineering detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN115012459B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211057879U (en) * | 2019-06-10 | 2020-07-21 | 江苏建纬检测股份有限公司 | Detection device for bearing capacity of foundation pile |
| CN213773520U (en) * | 2020-11-26 | 2021-07-23 | 福州市闽建工程检测有限公司 | Foundation pile height strain dynamic tester |
| CN213836770U (en) * | 2020-11-23 | 2021-07-30 | 杨生洪 | Building engineering detects and detects with engineering foundation pile detection fixing device |
| CN214530828U (en) * | 2021-03-23 | 2021-10-29 | 高晗 | Pile foundation detection equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9556581B2 (en) * | 2013-05-29 | 2017-01-31 | Glen G. Hale | Pile cap connectors |
-
2022
- 2022-06-10 CN CN202210657348.2A patent/CN115012459B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211057879U (en) * | 2019-06-10 | 2020-07-21 | 江苏建纬检测股份有限公司 | Detection device for bearing capacity of foundation pile |
| CN213836770U (en) * | 2020-11-23 | 2021-07-30 | 杨生洪 | Building engineering detects and detects with engineering foundation pile detection fixing device |
| CN213773520U (en) * | 2020-11-26 | 2021-07-23 | 福州市闽建工程检测有限公司 | Foundation pile height strain dynamic tester |
| CN214530828U (en) * | 2021-03-23 | 2021-10-29 | 高晗 | Pile foundation detection equipment |
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| Publication number | Publication date |
|---|---|
| CN115012459A (en) | 2022-09-06 |
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