CN116026207A - Highway engineering construction is with thickness detection device - Google Patents
Highway engineering construction is with thickness detection device Download PDFInfo
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- CN116026207A CN116026207A CN202310309088.4A CN202310309088A CN116026207A CN 116026207 A CN116026207 A CN 116026207A CN 202310309088 A CN202310309088 A CN 202310309088A CN 116026207 A CN116026207 A CN 116026207A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention relates to the technical field of pavement thickness measurement, in particular to a thickness detection device for highway engineering construction, which comprises a supporting sleeve and a measuring column, wherein an installation frame is fixed at the upper end of the supporting sleeve, the measuring column penetrates through the supporting sleeve, a push rod is fixed at the upper end of the measuring column, the push rod penetrates through the installation frame, a bottom plate is sleeved and fixed at the lower end of the supporting sleeve, a blocking mechanism is arranged in the supporting sleeve and used for limiting the measuring column, a first installation cylinder and a second installation cylinder are respectively fixed at two sides of the installation frame, a dial is arranged in the first installation cylinder in a rotating manner, an observation port is formed in the upper part of the first installation cylinder, a transmission assembly for driving the dial to rotate is arranged between the push rod and the dial, a measuring marking mechanism is arranged in the second installation cylinder, and the measuring marking mechanism can mark thickness data in set times. The invention can intuitively see the difference of the thickness of the road asphalt, realizes the automatic marking of the multi-time measurement data and is convenient to use.
Description
Technical Field
The invention relates to the technical field of pavement thickness measurement, in particular to a thickness detection device for highway engineering construction.
Background
Highway engineering refers to the construction of a highway such as: the road construction method has the advantages that the road construction method is characterized in that the road construction method comprises the following steps of investigation, measurement, design, construction, maintenance, management and the like of roadbeds, pavements, bridges, culverts, tunnels and the like, and an asphalt layer is required to be paved during road construction, and is the uppermost layer of the road and the last layer of pavement leveling, so that the requirement on the thickness of asphalt is high, and after the pavement is completed, the road construction method is required to be subjected to sampling fixed point thickness detection.
At present, construction workers draw materials locally when measuring the thickness of asphalt, directly insert steel bars, iron bars and the like into visual inspection conveniently, the precision is not high, and tools for combining the detection bars with a ruler are also arranged, however, when measuring the thickness of asphalt, the measurement is required to be carried out at the same longitudinal multipoint, single person operation record is inconvenient, thickness difference cannot be visually represented, meanwhile, the detection bars are inserted to be vertical, and data are inaccurate due to oblique insertion.
Disclosure of Invention
In view of the above, the present invention aims to provide a thickness detection device for highway engineering construction, so as to solve the problems that the existing detection and measurement device is inconvenient to record, the thickness difference cannot be visually represented, and tools are difficult to keep vertical during detection.
Based on the above object, the present invention provides a thickness detection device for highway engineering construction.
The utility model provides a highway engineering construction is with thickness detection device, includes support sleeve, measurement post, support sleeve upper end is fixed with the installing frame, the measurement post runs through the support sleeve, and the measurement post upper end is fixed with the push rod, the push rod runs through the installing frame, support sleeve lower extreme cover is established and is fixed with the bottom plate, is equipped with in the support sleeve and blocks the mechanism, it is used for spacing to measure the post to block the mechanism, the installing frame both sides are fixed with first installation section of thick bamboo, second installation section of thick bamboo respectively, and first installation section of thick bamboo rotation is equipped with the calibrated scale, and open on first installation section of thick bamboo upper portion has the viewing aperture, be equipped with the drive assembly who drives the calibrated scale rotation between push rod and the calibrated scale, be equipped with measurement marking mechanism in the second installation section of thick bamboo, measurement marking mechanism can mark thickness data in the number of times.
Further, the blocking mechanism comprises two limiting frames, the lower ends of the measuring columns are movably sleeved with the limiting frames, the two limiting frames are arranged in a staggered mode, limiting pieces are fixed to the lower ends of two sides of the measuring columns, the two limiting pieces are blocked and limited by the two limiting frames respectively, a notch is formed in one side of the limiting frame located at the lower portion, and the notch is matched with the limiting pieces.
Further, two sliding columns are fixed on opposite sides of the two limiting frames, the other ends of the two sliding columns on the same side penetrate through the supporting sleeve and are fixedly provided with a connecting block, springs are sleeved on the sliding columns, one ends of the springs are abutted against the connecting block, and the other ends of the springs are abutted against the outer wall of the supporting sleeve.
Further, the transmission assembly comprises a rack arranged on the inner wall of one side of the push rod, a tooth column is arranged in the push rod, the tooth column is rotationally arranged between the first installation cylinder and the second installation cylinder, a first connecting shaft is coaxially fixed on the dial, one end of the first connecting shaft penetrates through the first installation cylinder and is fixed with a first gear, and the first gear is meshed with the tooth column.
Further, the measurement marking mechanism comprises a second connecting shaft which is coaxially and rotatably connected in a second mounting barrel, one end of the second connecting shaft penetrates through the second mounting barrel and is fixedly provided with a second gear, the second gear is meshed with a tooth column, the other end of the second connecting shaft is sleeved with a plurality of lantern rings, torsion springs are arranged between the lantern rings and the second connecting shaft, pointer pawls are fixed on one sides of the lantern rings, the second mounting barrel is far away from the mounting frame and is of an opening structure, an inner gear ring is slidably arranged at one end of the opening of the second mounting barrel, the other end of the pointer pawls are meshed with the inner gear ring, and when the inner gear ring is gradually pushed into the second mounting barrel, the pointer pawls can be meshed with the second mounting barrel one by one.
Further, a fixed block is fixed on one side of the inner gear ring, a screw rod penetrates through the fixed block in a threaded connection mode, a motor is fixed on one side of the second mounting cylinder, and the output end of the motor is connected with one end of the screw rod.
Further, a connecting disc is fixed on one side of the inner gear ring, a plug post is coaxially fixed on one side of the connecting disc, and the other end of the plug post is slidably inserted into one end of the second connecting shaft.
Further, a handle is fixed at the upper end of the push rod, a contact switch is arranged at the bottom of the handle, and the contact switch can control the motor.
Further, the mounting grooves are formed in the two ends of the bottom plate, the rotating rods are arranged in the mounting grooves in a rotating mode, and one sides of the two rotating rods are respectively abutted against the two connecting blocks.
Furthermore, a limiting ring is sleeved and fixed on the measuring column, and the limiting ring is used for limiting the upward sliding distance of the measuring column.
The invention has the beneficial effects that:
according to the invention, through the first installation cylinder, the dial arranged in the first installation cylinder is matched with the transmission assembly and the measuring marking mechanism arranged in the second installation cylinder, when the measuring device is used, the bottom plate is only required to be placed on the upper part of pavement asphalt and is placed flat, the handle is further pressed down, the measuring column is pushed to move downwards and is inserted into asphalt, the measuring device cannot be pushed to move downwards through the push rod, when the push rod moves downwards, the dial is driven to rotate through the rack, the tooth column, the first gear and the first connecting shaft, the dial can be further observed from an observation port, the push rod can move downwards and simultaneously can drive the pointer pawls to rotate through the tooth column, the second gear and the second connecting shaft, at the moment, the tooth teeth of the inner gear ring are meshed with the pointer pawl at the tail end, after the measuring column is inserted into the bottom, the pointer pawls rotate by a certain angle to stop, the push rod is further pulled to return, one pointer pawl meshed with the inner gear ring is clamped, other pointers which are not meshed with the inner gear ring are returned along with the second connecting shaft, after the push rod is pulled back, the contact switch is pressed down, the motor rotates a certain angle, the lead screw is rotated, the inner gear is driven to move inwards through the fixed block to push the ring, the inner gear is rotated, the inner gear is observed for observing the distance, the distance is observed, the pointer is further rotated by a plurality of pointers are automatically, the inner gear teeth are rotated to rotate, the inner gear teeth are further, the distance is measured, and the distance is convenient, and has been measured.
According to the invention, when the device is used, the base plate is supported on the asphalt pavement through the blocking mechanism, two feet are needed to tread on two sides of the base plate, the two rotating rods are stepped on to enable the base plate to rotate, at the moment, the base plate can be guaranteed to be attached to the asphalt pavement, so that the whole device is kept vertical, the two connecting blocks are extruded when the rotating rods rotate, the two limiting frames relatively move, the two limiting frames are separated from the two limiting sheets in a staggered mode, at the moment, the measuring column can be pressed down, a user is forced to tread on the base plate, and the whole device can be started to be used after the whole device is kept vertical.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only of the invention and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic plan view of an embodiment of the present invention;
FIG. 3 is a schematic illustration of a putter in accordance with an embodiment of the present invention;
FIG. 4 is a perspective view of a second mounting cylinder according to an embodiment of the present invention;
FIG. 5 is a schematic perspective view of a pointer pawl according to an embodiment of the present invention;
FIG. 6 is a perspective view of a first mounting cylinder according to an embodiment of the present invention;
FIG. 7 is a schematic perspective view of a base plate according to an embodiment of the present invention;
fig. 8 is a schematic perspective view of a limiting frame according to an embodiment of the present invention;
fig. 9 is a schematic perspective view of an inner gear ring according to an embodiment of the present invention.
Marked in the figure as:
1. a support sleeve; 2. a mounting frame; 3. a measuring column; 4. a bottom plate; 5. a rotating rod; 6. a first mounting cylinder; 7. a second mounting cylinder; 8. an inner gear ring; 9. a rack; 10. a push rod; 11. a handle; 12. tooth columns; 13. a first connecting shaft; 14. a first gear; 15. a second gear; 16. a second connecting shaft; 17. a collar; 18. a pointer pawl; 19. inserting a column; 20. a connecting disc; 21. a torsion spring; 22. an observation port; 23. a dial; 24. a limiting ring; 25. a limiting piece; 27. a limit frame; 28. a notch; 29. a spool; 30. a spring; 31. a connecting block; 32. a fixed block; 33. a screw rod; 34. and a motor.
Detailed Description
The present invention will be further described in detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present invention more apparent.
It is to be noted that unless otherwise defined, technical or scientific terms used herein should be taken in a general sense as understood by one of ordinary skill in the art to which the present invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
As shown in the accompanying drawings 1-9, the thickness detection device for highway engineering construction comprises a supporting sleeve 1 and a measuring column 3, wherein an installation frame 2 is fixed at the upper end of the supporting sleeve 1, the measuring column 3 penetrates through the supporting sleeve 1, a push rod 10 is fixed at the upper end of the measuring column 3, the push rod 10 penetrates through the installation frame 2, a bottom plate 4 is sleeved and fixed at the lower end of the supporting sleeve 1, a blocking mechanism is arranged in the supporting sleeve 1 and used for limiting the measuring column 3, a first installation cylinder 6 and a second installation cylinder 7 are respectively fixed at two sides of the installation frame 2, a dial 23 is rotationally arranged in the first installation cylinder 6, an observation port 22 is formed in the upper part of the first installation cylinder 6, a transmission assembly for driving the dial 23 to rotate is arranged between the push rod 10 and the dial 23, a measuring marking mechanism is arranged in the second installation cylinder 7, the measuring marking mechanism can mark thickness data in set times, the difference of highway asphalt thickness can be visually seen, automatic marking of multiple times of measured data is realized, and the thickness detection device is convenient to use.
The blocking mechanism comprises two limiting frames 27, wherein the lower end of the measuring column 3 is movably sleeved with the limiting frames 27, the two limiting frames 27 are arranged in a staggered mode, limiting pieces 25 are fixed at the lower ends of two sides of the measuring column 3, the two limiting pieces 25 are blocked and limited by the two limiting frames 27 respectively, a notch 28 is formed in one side of the limiting frame 27 located at the lower portion, the notch 28 is matched with the limiting pieces 25, and one of the limiting pieces 25 cannot pass through the limiting frame 27 at the lower portion.
Two sliding columns 29 are fixed on opposite sides of the two limiting frames 27, the other ends of the two sliding columns 29 on the same side penetrate through the supporting sleeve 1 and are fixedly provided with a connecting block 31, springs 30 are sleeved on the sliding columns 29, one ends of the springs 30 are abutted against the connecting block 31, and the other ends of the springs 30 are abutted against the outer wall of the supporting sleeve 1.
The transmission assembly comprises a rack 9 arranged on the inner wall of one side of the push rod 10, a tooth column 12 is arranged in the push rod 10, the tooth column 12 is rotationally arranged between the first installation cylinder 6 and the second installation cylinder 7, a dial 23 is coaxially fixed with a first connecting shaft 13, one end of the first connecting shaft 13 penetrates through the first installation cylinder 6 and is fixed with a first gear 14, the first gear 14 is meshed with the tooth column 12, and when the push rod 10 moves downwards, the dial 23 is driven to rotate through the rack 9, the tooth column 12, the first gear 14 and the first connecting shaft 13, so that the insertion distance can be observed from an observation port 22.
The measuring and marking mechanism comprises a second connecting shaft 16 coaxially and rotatably connected in the second mounting barrel 7, one end of the second connecting shaft 16 penetrates through the second mounting barrel 7 and is fixedly provided with a second gear 15, the second gear 15 is meshed with the tooth post 12, the other end of the second connecting shaft 16 is sleeved with a plurality of lantern rings 17, torsion springs 21 are arranged between the lantern rings 17 and the second connecting shaft 16, pointer pawls 18 are fixedly arranged on one sides of the lantern rings 17, the second mounting barrel 7 is far away from the mounting frame 2 and is of an opening structure, an inner gear ring 8 is slidably arranged at one end of the opening of the second mounting barrel 7, the other end of each pointer pawl 18 is meshed with the inner gear ring 8, when the inner gear ring 8 is gradually pushed into the second mounting barrel 7, the pointer pawls 18 are meshed with the inner gear ring 8 one by one, the push rod 10 can be driven to rotate through the tooth post 12, the second gear 15 and the second connecting shaft 16, at the moment, the tooth teeth of the inner gear ring 8 are meshed with the pointer pawls 18 at the tail end, and after the measuring post 3 is inserted into the bottom, the pointer pawls 18 synchronously rotate for a certain angle to stop.
A fixed block 32 is fixed on one side of the inner gear ring 8, a screw rod 33 is connected with the fixed block 32 in a penetrating threaded manner, a motor 34 is fixed on one side of the second mounting cylinder 7, and the output end of the motor 34 is connected with one end of the screw rod 33.
A connecting disc 20 is fixed on one side of the inner gear ring 8, a plug 19 is coaxially fixed on one side of the connecting disc 20, and the other end of the plug 19 is slidably inserted into one end of the second connecting shaft 16.
The upper end of the push rod 10 is fixed with a handle 11, a contact switch is arranged at the bottom of the handle 11, the contact switch can control a motor 34, a battery box is arranged on the mounting frame 2, and the battery box supplies power for the motor 34.
The mounting groove has all been opened at bottom plate 4 both ends, and all rotates in the mounting groove and be equipped with bull stick 5, and two bull stick 5 one side supports tightly in two connecting blocks 31 respectively.
The measuring column 3 is sleeved and fixed with a limiting ring 24, and the limiting ring 24 is used for limiting the upward sliding distance of the measuring column 3.
The scale of the scale 23 is adapted to the downward distance of the measuring column 3 such that the scale of the scale 23 is equal to the downward distance of the measuring column 3.
Working principle: when in use, the bottom plate 4 is supported on an asphalt pavement, two feet are trampled on two sides of the bottom plate 4, two rotating rods 5 are trampled to rotate, at the moment, the bottom plate 4 is attached to the asphalt pavement, the whole device is kept vertical, two connecting blocks 31 are extruded when the rotating rods 5 rotate, two limiting frames 27 relatively move, so that the two limiting frames 27 are separated from two limiting sheets 25 in a dislocation manner, at the moment, the measuring column 3 is not blocked, the measuring column 3 is pressed down, the hand-held handle 11 pushes the measuring column 3 to move down through the push rod 10 to be inserted into asphalt, the push rod 10 can be inserted into the asphalt until the pushing can be carried out, when the push rod 10 moves down, the dial 23 is driven to rotate through the rack 9, the tooth column 12, the first gear 14 and the first connecting shaft 13 (the diameters of the tooth column 12 and the first gear 14 are different, the first gear 14 have a decelerating effect), and then the insertion distance can be observed from the observation port 22, the push rod 10 moves downwards and simultaneously can drive a plurality of pointer pawls 18 to rotate through the toothed column 12, the second gear 15 and the second connecting shaft 16, at the moment, teeth of the inner gear ring 8 are meshed with the pointer pawls 18 at the tail end, after the measuring column 3 is inserted to the bottom, the pointer pawls 18 synchronously rotate for a certain angle to stop, and then the push rod 10 is pulled to return, one pointer pawl 18 meshed with the inner gear ring 8 is clamped and not returned, other pointer pawls 18 meshed with the inner gear ring 8 return along with the second connecting shaft 16, after the push rod 10 returns to the uppermost end, the contact switch is pressed, the motor 34 is started to drive the screw rod 33 to rotate, the inner gear ring 8 is driven to inwards push for a certain distance through the fixing block 32, the teeth of the inner gear ring 8 are meshed with the second pointer pawls 18, so that when the measuring column 3 moves downwards and is measured next time, the second pointer pawls 18 are also rotated to a certain angle to be clamped (different distances of the downward movement of the measuring column 3 are caused according to different asphalt thicknesses, the rotation angles of the plurality of pointer pawls 18 are also different), the reciprocating depression measurement is repeated as described above, the plurality of pointer pawls 18 are all rotated to a certain angle to stop, and finally the deviation angle between the plurality of pointer pawls 18 can be observed from the side of the inner gear ring 8, and the thickness difference of asphalt pavement can be judged.
The present invention is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a highway engineering is thickness detection device for construction, includes support sleeve (1), measures post (3), its characterized in that, support sleeve (1) upper end is fixed with installing frame (2), measure post (3) and run through support sleeve (1), and measure post (3) upper end and be fixed with push rod (10), push rod (10) run through installing frame (2), be equipped with in support sleeve (1) lower extreme cover and be fixed with bottom plate (4), be equipped with in support sleeve (1) and block the mechanism, it is used for spacing measuring post (3) to block the mechanism, installing frame (2) both sides are fixed with first installation section of thick bamboo (6) respectively, second installation section of thick bamboo (7), and first installation section of thick bamboo (6) rotation is equipped with calibrated scale (23), and first installation section of thick bamboo (6) upper portion is opened has viewing aperture (22), be equipped with between push rod (10) and calibrated scale (23) rotatory drive assembly, be equipped with in second installation section of thick bamboo (7) and measure mark mechanism and mark thickness data in the number of times to setting for.
2. The thickness detection device for highway engineering construction according to claim 1, wherein the blocking mechanism comprises two limiting frames (27), the limiting frames (27) are movably sleeved at the lower end of the measuring column (3), the two limiting frames (27) are arranged in a staggered mode, limiting sheets (25) are fixed at the lower ends of two sides of the measuring column (3), the two limiting sheets (25) are blocked and limited by the two limiting frames (27) respectively, a notch (28) is formed in one side of the limiting frame (27) located at the lower portion, and the notch (28) is matched with the limiting sheets (25).
3. The thickness detection device for highway engineering construction according to claim 2, wherein two sliding columns (29) are fixed on opposite sides of the two limiting frames (27), the other ends of the two sliding columns (29) on the same side penetrate through the supporting sleeve (1) and are fixedly provided with a connecting block (31), springs (30) are sleeved on the sliding columns (29), one ends of the springs (30) are abutted against the connecting block (31), and the other ends of the springs (30) are abutted against the outer wall of the supporting sleeve (1).
4. The thickness detection device for highway engineering construction according to claim 1, wherein the transmission assembly comprises a rack (9) arranged on one side inner wall of the push rod (10), a tooth column (12) is arranged in the push rod (10), the tooth column (12) is rotationally arranged between the first mounting cylinder (6) and the second mounting cylinder (7), the dial (23) is coaxially fixed with a first connecting shaft (13), one end of the first connecting shaft (13) penetrates through the first mounting cylinder (6) and is fixed with a first gear (14), and the first gear (14) is meshed with the tooth column (12).
5. The thickness detection device for highway engineering construction according to claim 4, wherein the measuring and marking mechanism comprises a second connecting shaft (16) coaxially and rotatably connected in the second mounting cylinder (7), one end of the second connecting shaft (16) penetrates through the second mounting cylinder (7) and is fixedly provided with a second gear (15), the second gear (15) is meshed with the tooth column (12), a plurality of collars (17) are sleeved at the other end of the second connecting shaft (16), torsion springs (21) are arranged between the collars (17) and the second connecting shaft (16), pointer pawls (18) are fixed on one side of the collars (17), the second mounting cylinder (7) is far away from the mounting frame (2) and is of an opening structure, one end of the opening of the second mounting cylinder (7) is slidably provided with an inner gear ring (8), and when the inner gear ring (8) is pushed into the second mounting cylinder (7), the plurality of pointers (18) can be meshed with the inner gear ring (8) one by one.
6. The thickness detection device for highway engineering construction according to claim 5, wherein a fixed block (32) is fixed on one side of the inner gear ring (8), a screw rod (33) is connected to the fixed block (32) in a penetrating threaded manner, a motor (34) is fixed on one side of the second mounting cylinder (7), and an output end of the motor (34) is connected with one end of the screw rod (33).
7. The thickness detection device for highway engineering construction according to claim 6, wherein a connecting disc (20) is fixed on one side of the inner gear ring (8), a plug post (19) is coaxially fixed on one side of the connecting disc (20), and the other end of the plug post (19) is slidably inserted into one end of the second connecting shaft (16).
8. The thickness detection device for highway engineering construction according to claim 6, wherein a handle (11) is fixed at the upper end of the push rod (10), a contact switch is arranged at the bottom of the handle (11), the contact switch can control the motor (34), and a battery box is arranged on the mounting frame (2) and supplies power for the motor (34).
9. A thickness detection device for highway engineering construction according to claim 3, wherein, the mounting groove has all been opened at bottom plate (4) both ends, and all rotates in the mounting groove and is equipped with bull stick (5), and two bull stick (5) one side supports tightly in two connecting blocks (31) respectively.
10. The thickness detection device for highway engineering construction according to any one of claims 1-9, wherein a limiting ring (24) is sleeved and fixed on the measuring column (3), and the limiting ring (24) is used for limiting the upward sliding distance of the measuring column (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310309088.4A CN116026207B (en) | 2023-03-28 | 2023-03-28 | Highway engineering construction is with thickness detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310309088.4A CN116026207B (en) | 2023-03-28 | 2023-03-28 | Highway engineering construction is with thickness detection device |
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| CN116026207A true CN116026207A (en) | 2023-04-28 |
| CN116026207B CN116026207B (en) | 2023-06-09 |
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