CN113192230A - Mining multifunctional inspection device - Google Patents
Mining multifunctional inspection device Download PDFInfo
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- CN113192230A CN113192230A CN202110589854.8A CN202110589854A CN113192230A CN 113192230 A CN113192230 A CN 113192230A CN 202110589854 A CN202110589854 A CN 202110589854A CN 113192230 A CN113192230 A CN 113192230A
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- 238000007689 inspection Methods 0.000 title claims abstract description 58
- 238000005065 mining Methods 0.000 title claims abstract description 22
- 239000000428 dust Substances 0.000 claims abstract description 14
- 239000000523 sample Substances 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000003245 coal Substances 0.000 abstract description 10
- 241000282693 Cercopithecidae Species 0.000 abstract description 7
- 230000033001 locomotion Effects 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 230000005611 electricity Effects 0.000 description 3
- 208000037805 labour Diseases 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
- G07C1/20—Checking timed patrols, e.g. of watchman
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a multifunctional inspection device for a mine, which comprises an upper shell, a front camera, a side camera, a transmitting antenna mounting seat, a transmitting antenna, a lower shell, a battery box, a wireless charging coil, a wireless charging electric cabinet and a main control electric cabinet, wherein a gas sensor, a wind speed sensor, a section scanner, the wind speed electric cabinet and a dust sensor are mounted on the upper surface of a lower mounting plate, the wireless charging coil is connected with the wireless charging electric cabinet, the wireless charging electric cabinet is connected with the main control electric cabinet and an intrinsic safety battery in the battery box is connected. The multifunctional mining inspection device can be carried on existing mine facilities of a mine car, a monkey car and a winch, the walking type mining inspection device is formed by means of the existing facilities of the mine, the advancing movement of the inspection device is completed through the traction of a rope or the mine car, the inspection operation of an inspection worker is simulated, and the intelligent inspection of the coal mine environment is realized.
Description
Technical Field
The invention belongs to the technical field of inspection devices, and particularly provides a mining multifunctional inspection device.
Background
The coal mine inspection system is an important component of a coal mine operation management system and is an important ring for ensuring the safe and reliable operation of coal mine electromechanical equipment. The existing coal mine tunnel and electromechanical inspection adopts a manual inspection mode, and the problem of high labor intensity of workers is solved.
The Chinese patent with publication number CN104386445A discloses a monorail crane of an overhead automatic inspection system of a belt conveyor. The monorail crane mainly comprises two sliding frames and a tensioning device which are symmetrically arranged in a groove of an I-shaped steel guide rail, the inspection robot is pulled by a steel wire rope, and the explosion-proof driving motor drives the steel wire rope to move. The device uses 2 drive devices, and is high in cost and large in size.
The Chinese patent with publication number CN205098937U discloses a rail-type inspection robot device, which is mounted on a rail, and is provided with sensors for temperature, smoke, tearing and the like, so that the movement inspection along the equipment is realized, the whole process of the belt conveyor is monitored and monitored in real time, and the faults of the belt conveyor are prevented and reduced.
The mining inspection device is in a self-walking form, steel rails need to be erected, the early investment is large, the mining inspection device cannot be applied to existing monkey cars and rail cars of mines, and meanwhile, the mining inspection device has few functions and does not have functions of roadway section scanning and roadway wind speed measurement.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a multifunctional inspection device for a mine, which has the functions of wireless communication, wireless charging, gas acquisition, wind speed acquisition, environment image acquisition and roadway section acquisition, can be carried on the existing mine facilities of a mine car, a monkey car and a winch, realizes the traveling motion of the inspection device, reduces the construction cost of the mine, and is convenient for replacing an inspection site.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a mining multi-functional inspection device, this inspection device includes:
the upper part of the upper shell is provided with an open shell structure, a first cavity and a second cavity which are separated by a partition plate are arranged in the upper shell, the front of the first cavity is provided with an open structure, and two sides of the second cavity are provided with open structures;
the front camera is arranged in the first cavity;
a side camera mounted in the second cavity;
the transmitting antenna mounting seat is mounted at an opening at one side of the second cavity;
the transmitting antenna is arranged on the transmitting antenna mounting seat;
the lower shell is of a shell structure with an internal cavity and comprises an upper mounting plate, a lower mounting plate, a connecting plate, a front panel, a rear panel, a first side plate and a second side plate, wherein the first side plate and the second side plate are respectively provided with an opening, the rear panel is provided with an opening, the upper mounting plate is connected with a bottom plate of the upper shell through bolts, and the lower shell and the upper shell are connected;
the battery box is arranged at the opening on the first side plate, and an intrinsic safety battery is arranged in the battery box;
a wireless charging coil mounted at an opening on the second side panel;
the wireless charging electric control box is arranged below the connecting plate;
the main control electric cabinet is arranged below the connecting plate and is positioned at the rear side of the wireless charging electric cabinet, the upper part of the connecting plate is fixed on the lower surface of the upper mounting plate, and the wireless charging electric cabinet and the main control electric cabinet are arranged in a cavity in the lower shell;
a gas sensor, a wind speed sensor, a section scanner, a wind speed electric cabinet and a dust sensor are arranged on the upper surface of the lower mounting plate, an ultrasonic wind speed probe is respectively arranged on the front side and the rear side of the lower surface of the lower mounting plate, and a laser transmitter is also arranged on the lower surface of the lower mounting plate;
the wind speed sensor and the two ultrasonic wind speed probes are connected with the wind speed electric cabinet, the wind speed sensor is used for measuring the wind speed of a certain point and transmitting the acquired information to the wind speed electric cabinet, the ultrasonic wind speed probes are used for measuring the wind speed of a certain section of the roadway and transmitting the acquired information to the wind speed electric cabinet, and the wind speed electric cabinet acquires and processes wind speed signals;
the intrinsic safety battery in the battery box is respectively connected with the master control electric control box, the gas sensor, the wind speed sensor, the section scanner, the wind speed electric control box, the dust sensor and the ultrasonic wind speed probe for power supply; the gas sensor, the laser transmitter, the wind speed electric cabinet, the front camera, the side camera, the section scanner and the dust sensor are respectively connected with a main control electric cabinet, the main control electric cabinet is additionally connected with a transmitting antenna, the gas sensor, the wind speed electric cabinet, the front camera, the side camera, the section scanner and the dust sensor transmit the acquired information to the main control electric cabinet, and data transmission with a 4G communication base station and a WiFi communication base station of a mine is realized through the transmitting antenna;
the wireless charging coil is connected with the wireless electric control box that charges, and the wireless electric control box that charges is connected with the main control electric control box and is connected with the ann's battery in the battery case, and the wireless electric control box that charges transmits the electric quantity information transmission of ann's battery to the main control electric control box, and the main control electric control box passes through transmitting antenna and gives the control backstage with ann's battery real-time information transmission.
Further, mining multi-functional inspection device still includes two landing legs, passes through the left and right both sides of bolt fastening at the lower part mounting panel respectively.
Furthermore, a steel wire rope hook connecting flange is fixed above the partition plate along the vertical direction.
Further, section scanner installs the upper surface rear side at the lower part mounting panel to stretch out from the trompil department of rear panel, section scanner internally mounted has an intrinsic safe driving motor, can drive section scanner's laser probe and realize 360 degrees rotations, and the section deformation state in measurement tunnel accomplishes and scans tunnel section.
Compared with the prior art, the invention has the following beneficial effects: the multifunctional mining inspection device can be carried on existing mine facilities of a mine car, a monkey car and a winch, the walking type mining inspection device is formed by means of the existing facilities of the mine, the advancing movement of the inspection device is completed through the traction of a rope or the mine car, the inspection operation of an inspection worker is simulated, and the intelligent inspection of the coal mine environment is realized. Compared with a rail-type inspection robot and a mobile inspection robot, the early-stage construction cost is low, and the inspection field is convenient to replace.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the present invention before its parts are disassembled;
FIG. 3 is a schematic structural view of the present invention after the parts are disassembled;
FIG. 4 is a schematic bottom view of the present invention;
FIG. 5 is a schematic view of the installation structure of the present invention with a mining overhead man-riding vehicle and a winch;
FIG. 6 is a schematic view of the mounting arrangement of the present invention to a mining vehicle;
in the figure: 1- -lower shell; 101-an upper mounting plate; 102-a lower mounting plate; 103-connecting plate; 104-a front panel; 105-a rear panel; 106-a first side panel; 107-a second side panel;
2-a support leg; 3-front camera; 4-connecting a flange with a steel wire rope hook; 5-side camera; 6-a transmitting antenna; 61-a transmitting antenna mount; 7-a battery box; 8-a wireless charging coil; 9-ultrasonic wind speed probe; 10-a gas sensor; 11-a wind speed sensor; 12-section scanner; 13-a laser emitter;
14-an upper shell; 141-a first cavity; 142-a second cavity; 143-a spacer;
15-wind speed electric control box; 16-a wireless charging electric control box; 17-a master control electric cabinet; 18-a dust sensor; 19-steel wire rope hook; 20-a steel wire rope; 21-mine car.
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. 1-4, a mining multifunctional inspection device includes:
an upper shell 14, the upper part of which is an open shell structure, and the interior of which is provided with a first cavity 141 and a second cavity 142 separated by a partition 143, the front of the first cavity 141 is an open structure, and the two sides of the second cavity 142 are open structures;
a front camera 3 installed in the first cavity 141;
a side camera 5 installed in the second cavity 142;
a transmitting antenna mounting seat 61 installed at an opening of one side of the second cavity 142;
a transmitting antenna 6 mounted on the transmitting antenna mounting base 61;
the lower shell 1 is a shell structure with an internal cavity and comprises an upper mounting plate 101, a lower mounting plate 102, a connecting plate 103, a front panel 104, a rear panel 105, a first side panel 106 and a second side panel 107, wherein the first side panel 106 and the second side panel 107 are respectively provided with an opening, the rear panel 105 is provided with an opening, the upper mounting plate 101 is connected with a bottom plate of the upper shell 14 through bolts, and the lower shell 1 is connected with the upper shell 14;
a battery box 7 installed at an opening of the first side plate 106, wherein an intrinsically safe battery is arranged in the battery box 7;
a wireless charging coil 8 installed at an opening on the second side plate 107;
the wireless charging electric control box 16 is arranged below the connecting plate 103;
the main control electric cabinet 17 is arranged below the connecting plate 103 and is positioned at the rear side of the wireless charging electric cabinet 16, the upper part of the connecting plate 103 is fixed on the lower surface of the upper mounting plate 101, and the wireless charging electric cabinet 16 and the main control electric cabinet 17 are arranged in the inner cavity of the lower shell 1;
a gas sensor 10, an air speed sensor 11, a section scanner 12, an air speed electric control box 15 and a dust sensor 18 are arranged on the upper surface of the lower mounting plate 102, an ultrasonic air speed probe 9 is respectively arranged on the front side and the rear side of the lower surface of the lower mounting plate 102, and a laser transmitter 13 is also arranged on the lower surface of the lower mounting plate 102;
the wind speed sensor 11 and the two ultrasonic wind speed probes 9 are connected with the wind speed electric cabinet 15, the wind speed sensor 11 is used for measuring the wind speed of a certain point and transmitting the acquired information to the wind speed electric cabinet 15, the ultrasonic wind speed probes 9 are used for measuring the wind speed of a certain section of a roadway and transmitting the acquired information to the wind speed electric cabinet 15, and the wind speed electric cabinet 15 realizes the acquisition and processing of wind speed signals;
the intrinsic safety battery in the battery box 7 is respectively connected with the master control electric control box 17, the gas sensor 10, the wind speed sensor 11, the section scanner 12, the wind speed electric control box 15, the dust sensor 18 and the ultrasonic wind speed probe 9 for power supply;
the gas sensor 10, the laser transmitter 13, the wind speed electric cabinet 15, the front camera 3, the side camera 5, the section scanner 12 and the dust sensor 18 are respectively connected with a main control electric cabinet 17, the main control electric cabinet 17 is additionally connected with the transmitting antenna 6, the gas sensor 10, the wind speed electric cabinet 15, the front camera 3, the side camera 5, the section scanner 12 and the dust sensor 18 transmit the acquired information to the main control electric cabinet 17, and data transmission with a 4G communication base station and a WiFi communication base station of a mine is achieved through the transmitting antenna 6; preceding camera 3 and side camera 5 can adjust the shooting angle, realize the accurate collection to the visual information of mine environment, and section scanner 12 adopts laser rangefinder principle, measures the section deformation state in tunnel, accomplishes and scans tunnel section, and laser emitter 13 can the transmitting line laser, can be used for tunnel section measurement, looks for some and trace line work.
The mining multifunctional inspection device further comprises two support legs 2 which are respectively fixed on the left side and the right side of the lower mounting plate 102 through bolts.
A steel wire rope hook connecting flange 4 is fixed above the partition 143 along the vertical direction and is used for being connected with a steel wire rope hook 19, the steel wire rope hook 19 is connected with a steel wire rope 20, and the walking type mining inspection device is formed by means of traction of a coal mine monkey vehicle or a winch.
The section scanner is installed in the upper surface rear side of lower part mounting panel 102 to stretch out from rear panel 105's trompil department, section scanner 12 internally mounted has this ampere of driving motor, can drive section scanner 12's laser probe and realize 360 degrees rotations, measures the section deformation state in tunnel, accomplishes and scans tunnel section.
The invention can be arranged at a fixed position of a coal mine, and realizes the inspection operation of the fixed position.
The walking type mine inspection device can be matched with a mine monkey vehicle and a winch for use, the steel wire hook connecting flange 4 is connected with the steel wire hook 19, the steel wire hook 19 is connected with the steel wire rope 20, the walking type mine inspection device is formed by means of traction of the mine monkey vehicle or the winch, the advancing movement of the inspection device is completed, the inspection operation of an inspection worker is simulated, and the intelligent inspection of the coal mine environment is realized, as shown in fig. 5.
The invention can be used with a mine car, is connected with the mine car through the supporting legs 2, forms a walking type mine inspection device by means of the movement of the mine car, completes the traveling movement of the inspection device, simulates the inspection operation of an inspection worker, and realizes the intelligent inspection of the coal mine environment, as shown in fig. 6.
The inspection device provided by the invention carries various sensors, has the functions of wireless communication, wireless charging, gas acquisition, wind speed acquisition, environment image acquisition and roadway section acquisition, and can classify, store and transmit the traditional artificial sensory phenomena which can not be reproduced and compared accurately to the 4G communication base station and the WiFi communication base station of a mine in real time by using digitized images, sounds and accurate data, thereby facilitating the query and reproduction of fault problems, reducing the labor intensity of workers, reducing the labor risk, finding out the problems in time and avoiding the expansion of accidents.
Mining multi-functional inspection device adopts the electricity supply mode of ann's battery, this ampere of battery is installed in battery case 7, because the battery only need supply with the power of inside each electric cabinet and each sensor, therefore, battery duration can reach 8-9 hours, the inside power management module of master control electric cabinet 17 can give control backstage with this ampere of battery real-time information transfer, operating personnel can monitor the electric quantity state of battery, be close to the no electricity when the battery, operating personnel can the inside ann's battery of manual change battery case 7, perhaps will patrol and examine the device and remove this ampere of electric pile department, accomplish automatic charging through wireless charging coil 8.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (4)
1. The utility model provides a mining multi-functional inspection device which characterized in that, this inspection device includes:
the upper part of the upper shell is provided with an open shell structure, a first cavity and a second cavity which are separated by a partition plate are arranged in the upper shell, the front of the first cavity is provided with an open structure, and two sides of the second cavity are provided with open structures;
the front camera is arranged in the first cavity;
a side camera mounted in the second cavity;
the transmitting antenna mounting seat is mounted at an opening at one side of the second cavity;
the transmitting antenna is arranged on the transmitting antenna mounting seat;
the lower shell is of a shell structure with an internal cavity and comprises an upper mounting plate, a lower mounting plate, a connecting plate, a front panel, a rear panel, a first side plate and a second side plate, wherein the first side plate and the second side plate are respectively provided with an opening, the rear panel is provided with an opening, the upper mounting plate is connected with a bottom plate of the upper shell through bolts, and the lower shell and the upper shell are connected;
the battery box is arranged at the opening on the first side plate, and an intrinsic safety battery is arranged in the battery box;
a wireless charging coil mounted at an opening on the second side panel;
the wireless charging electric control box is arranged below the connecting plate;
the main control electric cabinet is arranged below the connecting plate and is positioned at the rear side of the wireless charging electric cabinet, the upper part of the connecting plate is fixed on the lower surface of the upper mounting plate, and the wireless charging electric cabinet and the main control electric cabinet are arranged in a cavity in the lower shell;
a gas sensor, a wind speed sensor, a section scanner, a wind speed electric cabinet and a dust sensor are arranged on the upper surface of the lower mounting plate, an ultrasonic wind speed probe is respectively arranged on the front side and the rear side of the lower surface of the lower mounting plate, and a laser transmitter is also arranged on the lower surface of the lower mounting plate;
the wind speed sensor and the two ultrasonic wind speed probes are connected with the wind speed electric cabinet, the wind speed sensor is used for measuring the wind speed of a certain point and transmitting the acquired information to the wind speed electric cabinet, the ultrasonic wind speed probes are used for measuring the wind speed of a certain section of the roadway and transmitting the acquired information to the wind speed electric cabinet, and the wind speed electric cabinet acquires and processes wind speed signals;
the intrinsic safety battery in the battery box is respectively connected with the master control electric control box, the gas sensor, the wind speed sensor, the section scanner, the wind speed electric control box, the dust sensor and the ultrasonic wind speed probe for power supply; the gas sensor, the laser transmitter, the wind speed electric cabinet, the front camera, the side camera, the section scanner and the dust sensor are respectively connected with a main control electric cabinet, the main control electric cabinet is additionally connected with a transmitting antenna, the gas sensor, the wind speed electric cabinet, the front camera, the side camera, the section scanner and the dust sensor transmit the acquired information to the main control electric cabinet, and data transmission with a 4G communication base station and a WiFi communication base station of a mine is realized through the transmitting antenna;
the wireless charging coil is connected with the wireless electric control box that charges, and the wireless electric control box that charges is connected with the main control electric control box and is connected with the ann's battery in the battery case, and the wireless electric control box that charges transmits the electric quantity information transmission of ann's battery to the main control electric control box, and the main control electric control box passes through transmitting antenna and gives the control backstage with ann's battery real-time information transmission.
2. The mining multifunctional inspection device according to claim 1, further comprising two legs that are respectively bolted to left and right sides of the lower mounting plate.
3. The mining multifunctional inspection device according to claim 1, wherein a wire rope hook connecting flange is fixed above the partition plate in a vertical direction.
4. The mining multifunctional inspection device according to claim 1, wherein the section scanner is mounted on a rear side of the upper surface of the lower mounting plate and extends from an opening of the rear panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110589854.8A CN113192230B (en) | 2021-05-28 | 2021-05-28 | Mining multi-functional inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110589854.8A CN113192230B (en) | 2021-05-28 | 2021-05-28 | Mining multi-functional inspection device |
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| Publication Number | Publication Date |
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| CN113192230A true CN113192230A (en) | 2021-07-30 |
| CN113192230B CN113192230B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110589854.8A Active CN113192230B (en) | 2021-05-28 | 2021-05-28 | Mining multi-functional inspection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113873108A (en) * | 2021-08-23 | 2021-12-31 | 广东大唐国际潮州发电有限责任公司 | Non-contact intelligent inspection device for coal conveying belt |
| CN114766393A (en) * | 2022-04-06 | 2022-07-22 | 滨州学院 | Inspection device for deep sea cultivation |
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| CN111152236A (en) * | 2020-01-19 | 2020-05-15 | 辽宁工程技术大学 | Inspection robot for safety detection of mining belt conveyor |
| WO2020134187A1 (en) * | 2019-08-28 | 2020-07-02 | 山东科技大学 | Mining workface inspection robot and application thereof |
| CN111862378A (en) * | 2020-06-24 | 2020-10-30 | 北京中煤矿山工程有限公司 | Intelligent safety inspection system for coal mine shaft construction based on negative pressure adsorption technology |
| CN215117604U (en) * | 2021-05-28 | 2021-12-10 | 中煤科工集团沈阳研究院有限公司 | Mining multifunctional inspection device |
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2021
- 2021-05-28 CN CN202110589854.8A patent/CN113192230B/en active Active
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| CN206290288U (en) * | 2016-12-15 | 2017-06-30 | 山西戴德测控技术有限公司 | A kind of mining tunnel automatic inspection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113873108A (en) * | 2021-08-23 | 2021-12-31 | 广东大唐国际潮州发电有限责任公司 | Non-contact intelligent inspection device for coal conveying belt |
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| CN114766393B (en) * | 2022-04-06 | 2023-09-26 | 滨州学院 | Inspection device for deep sea cultivation |
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| CN113192230B (en) | 2024-05-03 |
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