CN115163457B - Automatic water diversion device of multistage drainage system for mine - Google Patents
Automatic water diversion device of multistage drainage system for mine Download PDFInfo
- Publication number
- CN115163457B CN115163457B CN202211020592.4A CN202211020592A CN115163457B CN 115163457 B CN115163457 B CN 115163457B CN 202211020592 A CN202211020592 A CN 202211020592A CN 115163457 B CN115163457 B CN 115163457B
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- Prior art keywords
- vacuum pump
- shaped
- block
- limit
- front surface
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 230000017525 heat dissipation Effects 0.000 claims description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 5
- 241001330002 Bambuseae Species 0.000 claims description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 5
- 239000011425 bamboo Substances 0.000 claims description 5
- 239000011148 porous material Substances 0.000 abstract description 16
- 239000000428 dust Substances 0.000 abstract description 7
- 230000007774 longterm Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/14—Provisions for readily assembling or disassembling
Abstract
The invention discloses an automatic water diversion device of a multi-stage drainage system for mines, which comprises a base, a vacuum pump and a vacuum tank, wherein the vacuum pump and the vacuum tank are arranged at the top of the base, the rear end of the vacuum pump is connected with a second pipeline, a first pipeline is connected between the vacuum pump and the vacuum tank, an outlet pipe is connected to the vacuum tank, a C-shaped mounting groove is formed in the front surface of the vacuum pump, a C-shaped notch communicated with the inner side of the vacuum pump is formed in the C-shaped mounting groove, and a C-shaped pore plate is embedded and arranged in the C-shaped mounting groove; through setting up the C shape orifice plate of being convenient for dismouting to offer the louvre on C shape orifice plate, make in the follow-up louvre by the laying dust jam back, operating personnel only need quick release the spacing to the stopper, then sidespin the stopper, can directly pull down C shape orifice plate and carry out the degree of depth clearance, difficult clearance after having solved the louvre laying dust in the former device influences normal radiating problem, guaranteed the long-term steady operation of vacuum pump and whole diversion unit.
Description
Technical Field
The invention belongs to the technical field of diversion units, and particularly relates to an automatic diversion device of a mine multi-stage drainage system.
Background
The mine multistage drainage system is important drainage equipment in the coal mine industry, the stable operation of the drainage system directly affects the safe production of the whole coal mine, the mine multistage drainage system generally comprises a ground control system, an information transmission system and an underground control part, wherein the most central part in the underground control part is a vacuum water diversion unit, automatic water diversion can be realized under the control of a PLC (programmable logic controller), and the vacuum water diversion unit comprises a water pumping assembly and a vacuum assembly … … connected with the water pumping assembly, and the vacuum water diversion unit mainly comprises a vacuum pump, a vacuum tank, a PLC control cabinet and a water diversion and delivery pipeline, wherein the most central part is the vacuum pump and the core part of the whole vacuum water diversion unit.
When the existing vacuum diversion unit is used as an automatic diversion device of a mine multi-stage drainage system, a plurality of radiating holes for radiating heat during subsequent operation are formed in the end part of the vacuum pump, but the radiating holes are directly formed in the vacuum pump housing, so that the cleaning of the radiating holes is inconvenient after dust accumulation is carried out, the normal heat radiation of the vacuum pump can be influenced for a long time, and the long-term stable operation of the vacuum pump and the whole vacuum diversion machine cannot be guaranteed.
Disclosure of Invention
The invention aims to provide an automatic water diversion device of a multi-stage drainage system for mines, which aims to solve the problem that dust accumulation on a heat dissipation hole of a vacuum pump in the conventional vacuum water diversion unit is difficult to clean.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an automatic diversion device of multistage drainage system for mine, includes the base and installs vacuum pump and the vacuum tank at the base top, the rear end of vacuum pump is connected with the second pipeline, be connected with first pipeline between vacuum pump and the vacuum tank, two pipelines are with being connected with external pipeline, and be connected with the outlet pipe on the vacuum tank, the front surface of vacuum pump has seted up C shape mounting groove, supplies the installation of C shape orifice plate, and has seted up the C shape breach that communicates with each other with the vacuum pump inboard in the C shape mounting groove, the embedding is installed C shape orifice plate in the C shape mounting groove, and a plurality of louvres have evenly been seted up on the surface of C shape orifice plate, the normal heat dissipation when guaranteeing the vacuum pump operation, the front surface of vacuum pump is equipped with two spacing subassemblies for the bilateral symmetry of C shape orifice plate, realizes the steady installation to C shape orifice plate, the limiting component comprises a T-shaped shaft barrel and a limiting block rotationally sleeved on the T-shaped shaft barrel, one end of the limiting block extends to the front surface of the C-shaped pore plate, the limiting block can block the C-shaped pore plate, a limiting structure is further arranged between the vacuum pump and the limiting block and used for limiting the limiting block, the limiting structure comprises an inner sliding groove, a spring, an inner sliding block, a pressing column, a limiting clamping block and a limiting clamping hole, the inner sliding groove is formed in the vacuum pump, the inner sliding groove is movably connected with the inner sliding block through the spring, the inner sliding block can slide in the inner sliding groove, two limiting clamping blocks are symmetrically fixed on the front surface of the inner sliding block, two limiting clamping holes are symmetrically formed in the surface of the limiting block and used for clamping the limiting clamping block, the front end of the limiting clamping block is clamped in the limiting clamping hole to realize stable limiting of the limiting block, the pressing column is further fixed at the center of the front surface of the inner sliding block, and the front end of pressing the post runs through to the inboard of T shape section of thick bamboo, conveniently promotes the interior slider through pressing the post to remove the spacing to the stopper, realize the rotation operation of stopper, the rear surface of interior slider has seted up the back groove, and the front end of spring inserts in the back groove, ensures the stable installation of spring.
Preferably, the front surface rotation of stopper is provided with the rubber dog, and the one end of rubber dog extends to the front surface of T shape section of thick bamboo, can prevent that the press post from being pressed by mistake during daily use, plays the barrier effect, the front surface mounting of stopper has T shape axle piece, and the other end rotation cover of rubber dog is established on T shape axle piece for the follow-up rotatable removal of rubber dog, the trepanning has been seted up to the other end of rubber dog, and the inner wall symmetry of trepanning is equipped with two circular archs, two circular draw-in grooves have been seted up on the surface of T shape axle piece, and circular arch embedding is in circular draw-in groove, realizes the supplementary spacing after the rubber dog rotates, the rear surface mounting of rubber dog has the arc rubber piece, and the inboard of arc rubber piece embedding to T shape section of thick bamboo.
Compared with the prior art, the invention has the beneficial effects that: through setting up the C shape orifice plate of being convenient for dismouting to offer the louvre on C shape orifice plate, make in the follow-up louvre by the laying dust jam back, operating personnel only need quick release the spacing to the stopper, then sidespin the stopper, can directly pull down C shape orifice plate and carry out the degree of depth clearance, difficult clearance after having solved the louvre laying dust in the former device influences normal radiating problem, guaranteed the long-term steady operation of vacuum pump and whole diversion unit.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged view of a portion of the area A of FIG. 1 in accordance with the present invention;
FIG. 3 is a top cross-sectional view of the junction of the stop block and the C-shaped orifice plate of the present invention;
FIG. 4 is an enlarged view of a portion of the area B of FIG. 3 in accordance with the present invention;
FIG. 5 is an enlarged view of a portion of the area C of FIG. 4 in accordance with the present invention;
in the figure: 1. a vacuum pump; 2. a base; 3. a vacuum tank; 4. a first pipeline; 5. a second pipeline; 6. a C-shaped orifice plate; 7. a limiting block; 8. a rubber stopper; 9. t-shaped shaft blocks; 10. a C-shaped notch; 11. a T-shaped shaft barrel; 12. an inner chute; 13. a spring; 14. an inner slide; 15. pressing the column; 16. a limit clamping block; 17. limiting clamping holes; 18. a circular protrusion; 19. a circular clamping groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but 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.
Examples
Referring to fig. 1 to 5, the present invention provides a technical solution: an automatic water diversion device of a mine multi-stage drainage system comprises a base 2, a vacuum pump 1 and a vacuum tank 3 which are arranged at the top of the base 2, wherein the rear end of the vacuum pump 1 is connected with a second pipeline 5, a first pipeline 4 is connected between the vacuum pump 1 and the vacuum tank 3, an outlet pipe is connected to the vacuum tank 3, the pipeline is used for being connected with other pipelines in an external mine multi-stage drainage system, a C-shaped mounting groove is formed on the front surface of the vacuum pump 1, a C-shaped notch 10 communicated with the inner side of the vacuum pump 1 is formed in the C-shaped mounting groove, a C-shaped pore plate 6 is embedded in the C-shaped mounting groove, a plurality of heat dissipation holes are uniformly formed in the surface of the C-shaped pore plate 6, normal heat dissipation of the operation of the vacuum pump 1 is ensured, the C-shaped pore plate 6 is easy to disassemble and clean, two limit components are symmetrically arranged on the front surface of the vacuum pump 1 relative to the two sides of the C-shaped pore plate 6, the limiting component comprises a T-shaped shaft barrel 11 and a limiting block 7 rotationally sleeved on the T-shaped shaft barrel 11, one end of the limiting block 7 extends to the front surface of the C-shaped pore plate 6 to realize stable limiting of the C-shaped pore plate 6, a limiting structure is further arranged between the vacuum pump 1 and the limiting block 7 and comprises an inner sliding groove 12, a spring 13, an inner sliding block 14, a pressing column 15, a limiting clamping block 16 and a limiting clamping hole 17, the inner sliding groove 12 is arranged in the vacuum pump 1, the inner sliding block 14 is movably connected in the inner sliding groove 12 through the spring 13, two limiting clamping blocks 16 are symmetrically fixed on the front surface of the inner sliding block 14, two limiting clamping holes 17 corresponding to the limiting clamping blocks 16 are symmetrically arranged on the surface of the limiting block 7, the front end of the limiting clamping block 16 is clamped into the limiting clamping hole 17 to realize stable limiting of the limiting block 7, a pressing column 15 is further fixed at the center of the front surface of the inner sliding block 14, and the front end of the pressing column 15 penetrates to the inner side of the T-shaped shaft barrel 11, so that the inner slide block 14 is conveniently pushed by the pressing column 15, a rear groove is formed in the rear surface of the inner slide block 14, and the front end of the spring 13 is inserted into the rear groove, so that stable installation of the spring 13 is ensured.
In this embodiment, preferably, the front surface of the stopper 7 is rotatably provided with the rubber stopper 8, and one end of the rubber stopper 8 extends to the front surface of the T-shaped shaft 11, so that the pressing post 15 can be prevented from being pressed by mistake during daily use, the front surface of the stopper 7 is fixedly provided with the T-shaped shaft 9, the other end of the rubber stopper 8 is rotatably sleeved on the T-shaped shaft 9, the rubber stopper 8 is rotatable, the other end of the rubber stopper 8 is provided with a sleeve hole corresponding to the T-shaped shaft 9, the inner wall of the sleeve hole is symmetrically provided with two circular protrusions 18, the rubber stopper 8 and the circular protrusions 18 are all made of rubber materials, the surface of the T-shaped shaft 9 is provided with two circular clamping grooves 19 corresponding to the circular protrusions 18, the circular protrusions 18 are embedded into the circular clamping grooves 19, the limit after the rotation of the rubber stopper 8 is realized, the rear surface of the rubber stopper 8 is fixedly provided with an arc-shaped rubber block, and the arc-shaped rubber block is embedded into the inner side of the T-shaped shaft 11, so that the rubber stopper 8 can be positioned in an auxiliary manner when rotating to the front surface of the T-shaped shaft 11.
The working principle and the using flow of the invention are as follows: when the vacuum water diversion unit is used, negative pressure is generated after the vacuum pump 1 operates, water is pumped into the vacuum tank 3 and is conveyed to a mine multistage drainage system through a pipeline, heat dissipation can be carried out through the C-shaped notch 10 and the heat dissipation holes on the C-shaped pore plate 6 during the operation of the vacuum pump 1, the stable operation of the vacuum pump 1 is ensured, the rubber stop block 8 can be rotated for one hundred eighty degrees when the heat dissipation Kong Jichen is carried out later, the rubber stop block 8 is enabled to be free of shielding the pressing column 15, the pressing column 15 is pressed down at the moment, the inner slide block 14 compresses the spring 13 and moves out of the limit clamping hole 17 with the front end of the limit clamping block 16, the limit of the limit block 7 can be released, then the limit block 7 is rotated for one hundred eighty degrees, the limit block 7 can not block the limit on the C-shaped pore plate 6, the C-shaped pore plate 6 can be directly taken down at the moment for deep cleaning of the heat dissipation holes, the problem that normal heat dissipation is affected due to difficult cleaning after dust accumulation in heat dissipation holes in an original device is solved, long-term stable operation of the vacuum pump 1 and the whole water diversion unit is ensured, during later installation, the C-shaped pore plate 6 is pushed into a C-shaped installation groove, then the pressing column 15 is pressed down, the limiting block 7 is rotated for one hundred eighty degrees, the limiting block 7 is caused to block and limit the C-shaped pore plate 6 again, at the moment, the pressing column 15 is released, the spring 13 is caused to push and reset the inner sliding block 14 back, finally the front end of the limiting clamping block 16 is clamped into the limiting clamping hole 17, stable limiting of the limiting block 7 can be realized, the C-shaped pore plate 6 is limited stably for a long time through the limiting block 7, the installation stability of the C-shaped pore plate 6 is ensured, then the rubber stop block 8 can be rotated for one hundred eighty degrees, the end part of the rubber stop block 8 can be positioned in front of the T-shaped shaft barrel 11, the pressing post 15 can be prevented from being pressed by mistake in daily use.
Although embodiments of the present invention have been shown and described in detail with reference to the foregoing detailed description, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an automatic diversion device of multistage drainage system for mine, includes base (2) and installs vacuum pump (1) and vacuum tank (3) at base (2) top, the rear end of vacuum pump (1) is connected with second pipeline (5), be connected with first pipeline (4) between vacuum pump (1) and vacuum tank (3), and be connected with the outlet pipe on vacuum tank (3), its characterized in that: the front surface of the vacuum pump (1) is provided with a C-shaped mounting groove, a C-shaped notch (10) communicated with the inner side of the vacuum pump (1) is arranged in the C-shaped mounting groove, a C-shaped orifice plate (6) is embedded and mounted in the C-shaped mounting groove, a plurality of heat dissipation holes are uniformly formed in the surface of the C-shaped orifice plate (6), two limit components are symmetrically arranged on the front surface of the vacuum pump (1) relative to the two sides of the C-shaped orifice plate (6), each limit component comprises a T-shaped shaft (11) and a limit block (7) rotationally sleeved on the T-shaped shaft (11), one end of each limit block (7) extends to the front surface of the corresponding C-shaped orifice plate (6), a limit structure is further arranged between the vacuum pump (1) and each limit block (7), each limit structure comprises an inner slide groove (12), a spring (13), an inner slide block (14), a pressing column (15), a limit clamping block (16) and a limit clamping hole (17), the inner slide groove (12) is formed in the vacuum pump (1) and is internally provided with two limit blocks (16), and the two limit blocks (16) are symmetrically arranged on the front surfaces of the two limit blocks (16) through the inner slide blocks (14), the front surface center department of interior slider (14) still is fixed with presses post (15), just the front end of pressing post (15) runs through to the inboard of T shape section of thick bamboo (11), the back groove has been seted up to the rear surface of interior slider (14), and the front end of spring (13) inserts in the back groove.
2. The automatic water diversion device of the mine multi-stage drainage system according to claim 1, wherein: the front surface of stopper (7) rotates and is provided with rubber dog (8), and the one end of rubber dog (8) extends to the front surface of T shape section of thick bamboo (11).
3. The automatic water diversion device of the mine multi-stage drainage system according to claim 2, wherein: the front surface of the limiting block (7) is fixedly provided with a T-shaped shaft block (9), and the other end of the rubber stop block (8) is rotatably sleeved on the T-shaped shaft block (9).
4. The automatic water diversion device of the mine multi-stage drainage system according to claim 3, wherein: the other end of the rubber stop block (8) is provided with a sleeve hole, the inner wall of the sleeve hole is symmetrically provided with two circular protrusions (18), the surface of the T-shaped shaft block (9) is provided with two circular clamping grooves (19), and the circular protrusions (18) are embedded into the circular clamping grooves (19).
5. The automatic water diversion device of the mine multi-stage drainage system according to claim 4, wherein: the rear surface of the rubber stop block (8) is fixedly provided with an arc-shaped rubber block, and the arc-shaped rubber block is embedded into the inner side of the T-shaped shaft barrel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211020592.4A CN115163457B (en) | 2022-08-24 | 2022-08-24 | Automatic water diversion device of multistage drainage system for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211020592.4A CN115163457B (en) | 2022-08-24 | 2022-08-24 | Automatic water diversion device of multistage drainage system for mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115163457A CN115163457A (en) | 2022-10-11 |
| CN115163457B true CN115163457B (en) | 2024-01-19 |
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ID=83481539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211020592.4A Active CN115163457B (en) | 2022-08-24 | 2022-08-24 | Automatic water diversion device of multistage drainage system for mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115163457B (en) |
Citations (7)
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| CN110469485A (en) * | 2019-08-27 | 2019-11-19 | 贵州大学 | A kind of mobile gas suction pump of the gas acquisition with shock-absorbing function |
| CN211737208U (en) * | 2019-12-30 | 2020-10-23 | 瓮安大信北斗山磷矿 | Automatic pumping drainage system in pit |
| CN212923535U (en) * | 2020-07-06 | 2021-04-09 | 中普生物制药有限公司 | Pig bacterin production is with aseptic feeding device |
| CN213627907U (en) * | 2020-10-30 | 2021-07-06 | 山东凯新制冷工程有限公司 | Vacuum pump with heat dissipation function |
| CN113115528A (en) * | 2020-06-24 | 2021-07-13 | 中原工学院 | Grain depot fan executor drive arrangement |
| CN213833673U (en) * | 2019-11-25 | 2021-07-30 | 江苏恒拓医药科技有限公司 | Tablet production is with dredging feeding device certainly with function of weighing |
| CN215647979U (en) * | 2021-08-02 | 2022-01-25 | 陕西红星美羚乳业股份有限公司 | Water circulation system in water inlet and outlet management system of ice water unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2012359293B2 (en) * | 2011-12-08 | 2016-02-04 | Weir Minerals Australia Ltd | Pump apparatus |
-
2022
- 2022-08-24 CN CN202211020592.4A patent/CN115163457B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469485A (en) * | 2019-08-27 | 2019-11-19 | 贵州大学 | A kind of mobile gas suction pump of the gas acquisition with shock-absorbing function |
| CN213833673U (en) * | 2019-11-25 | 2021-07-30 | 江苏恒拓医药科技有限公司 | Tablet production is with dredging feeding device certainly with function of weighing |
| CN211737208U (en) * | 2019-12-30 | 2020-10-23 | 瓮安大信北斗山磷矿 | Automatic pumping drainage system in pit |
| CN113115528A (en) * | 2020-06-24 | 2021-07-13 | 中原工学院 | Grain depot fan executor drive arrangement |
| CN212923535U (en) * | 2020-07-06 | 2021-04-09 | 中普生物制药有限公司 | Pig bacterin production is with aseptic feeding device |
| CN213627907U (en) * | 2020-10-30 | 2021-07-06 | 山东凯新制冷工程有限公司 | Vacuum pump with heat dissipation function |
| CN215647979U (en) * | 2021-08-02 | 2022-01-25 | 陕西红星美羚乳业股份有限公司 | Water circulation system in water inlet and outlet management system of ice water unit |
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| Publication number | Publication date |
|---|---|
| CN115163457A (en) | 2022-10-11 |
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