CN116338519B - LED display screen detection method and detection device thereof - Google Patents

LED display screen detection method and detection device thereof Download PDF

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Publication number
CN116338519B
CN116338519B CN202310636565.8A CN202310636565A CN116338519B CN 116338519 B CN116338519 B CN 116338519B CN 202310636565 A CN202310636565 A CN 202310636565A CN 116338519 B CN116338519 B CN 116338519B
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China
Prior art keywords
display screen
led display
water
lifting platform
sliding plate
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CN202310636565.8A
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CN116338519A (en
Inventor
朱虹
程越
王淑敏
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China National Institute of Standardization
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China National Institute of Standardization
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Priority to CN202310636565.8A priority Critical patent/CN116338519B/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108—Rainwater harvesting

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The application relates to the technical field of LED screen detection, in particular to a detection method and a detection device of an LED display screen, wherein the detection device comprises a rack and a water collecting tank, quantitative water is stored in the water collecting tank, a lifting platform is arranged in the water collecting tank and is used for installing the LED display screen, one side of the lifting platform is provided with a power supply unit, and a connector of the LED display screen is connected with the power supply unit to be connected with a power supply; the opposite side of lift platform is provided with electric leakage detecting element, still is provided with circulation water supply device in the frame, and circulation water supply device includes the spray pipe, and the spray pipe passes through slide slidable mounting in the frame, cuts off the connection of LED display screen and power supply unit when detecting the LED display screen electric leakage through electric leakage detecting element, avoids the staff to take electric shock when electric leakage, and the LED display screen normal water that circulation water supply device absorbed sprays to the LED display screen surface to finally flow back to the header tank inside, realize the cyclic utilization of water resource.

Description

LED display screen detection method and detection device thereof
Technical Field
The application relates to the technical field of LED screen detection, in particular to an LED display screen detection method and an LED display screen detection device.
Background
The LED display screen is a flat panel display, is formed by a plurality of small LED module panels, is used for displaying various information such as characters, images and videos, and is required to carry out waterproof detection and electric leakage detection in the factory detection of the LED screen, the waterproof detection and the electric leakage detection are two procedures at present, operators need to manually wipe the screen after the waterproof detection, so that the detection efficiency is lower, and the electric leakage detection needs to be manually plugged and unplugged to have a certain electric shock risk.
Chinese patent CN113075583B discloses a system and a method for detecting an LED screen, comprising a detecting table, wherein a water collecting cavity with an upward opening is provided in the detecting table, a filter screen supporting table is fixedly connected on the inner wall of the rear side of the water collecting cavity, a supporting plate is fixedly connected on the end face of the rear side of the water collecting cavity, a screen power supply plugging mechanism is provided in the water collecting cavity, the screen power supply plugging mechanism is used for automatically plugging the power supply, the damage to the detecting personnel caused by the electric leakage generated by the LED screen after the waterproof detection is avoided, and the electric leakage detecting mechanism is provided on the detecting table.
But the required electrical components of this equipment are more, and manufacturing cost is higher, and screen power plug mechanism can automatic plug screen plug to can't only carry out the difference operation when detecting that the display screen exists electric leakage, and take the display screen at every turn and all need wipe the water on surface earlier then outage take out, if water does not clean then still have the risk of electric shock.
Disclosure of Invention
In view of the foregoing, it is necessary to provide a method and a device for detecting an LED display screen.
In order to solve the problems in the prior art, the application adopts the following technical scheme: the LED display screen detection method comprises the following steps:
step one, fixing an LED display screen to be tested;
step two, connecting the electric leakage detection equipment with an LED display screen to be detected to detect electric leakage;
step three, sprinkling water on the surface of the LED display screen to be tested, and performing waterproof detection;
and step four, taking down the tested LED display screen, replacing the LED display screen, and repeating the step one to the step three.
The LED display screen detection device is applied to the LED display screen detection method and comprises a frame and a water collecting tank with an upward opening, wherein quantitative water is stored in the water collecting tank, a lifting platform is arranged in the water collecting tank and is used for installing an LED display screen, the lifting platform is fixedly connected with the working end of a first linear driver, and the first linear driver drives the lifting platform to move up and down in the water collecting tank; a power supply unit is arranged on one side of the lifting platform, and a connector of the LED display screen is connected with the power supply unit to be connected with a power supply; the other side of the lifting platform is provided with a leakage detection unit, and the connection between the LED display screen and the power supply unit is cut off when the leakage detection unit detects that the LED display screen leaks electricity; still be provided with circulation water supply device in the frame, circulation water supply device includes the spray pipe, and the spray pipe passes through slide slidable mounting in the frame, and the slide is connected to the work end of second linear drive, and the second linear drive is used for driving spray pipe horizontal migration, and the spray pipe bottom is provided with a plurality of shower nozzles along perpendicular to slide direction of movement equidistant distribution, absorbs the water in the header tank and sprays to the LED display screen surface when the spray pipe removes.
Preferably, the circulating water delivery device further comprises a water outlet pipe connected with the bottom of the water collecting tank, the other end of the water outlet pipe is connected with a water spray pipe, a section of soft flow pipe is arranged on the water outlet pipe, the soft flow pipe penetrates through a cavity in the pump body, a rotary driving block is rotatably arranged in the pump body, the soft flow pipe surrounds the periphery of the rotary driving block, a plurality of pressing wheels are equidistantly inserted in the periphery of the rotary driving block, and the rotating shafts of the pressing wheels and the rotary driving block are perpendicular to the extending direction of the soft flow pipe; the rotary driving block rotates to enable the pinch roller to squeeze the soft flow pipe to convey water in the soft flow pipe to the spray pipe.
Preferably, the axis of the rotary driving block is provided with a shaft rod, the shaft rod is inserted on the pump body to extend to the outside of the pump body, a ratchet wheel and a first bevel gear are coaxially arranged on the shaft rod, the ratchet wheel is in transmission connection with the shaft rod, the first bevel gear is in meshed connection with a second bevel gear, the axis of the second bevel gear is vertically arranged, and the second bevel gear is coaxially connected with a synchronous gear; at least one first ratchet is hinged on the first bevel gear, and the first ratchet enables the ratchet wheel to rotate unidirectionally along with the first bevel gear; one side of the sliding seat is fixedly provided with a connecting arm, the bottom of the connecting arm is provided with a horizontal rack, the rack is connected with a synchronous gear in a meshed mode, and the sliding seat moves to drive the rotary driving block to rotate.
Preferably, a fixed seat is arranged at the center of the upper side of the lifting platform, water holes surrounding the periphery of the fixed seat are formed in the lifting platform, and water sprayed by the spray head flows back to the water outlet pipe through the water holes.
Preferably, the lifting platform is provided with an installation cavity on two sides, the electric leakage detection unit is installed in the installation cavity on one side of the lifting platform, the electric leakage detection unit comprises a plurality of guide posts for detecting the electric leakage state of the LED display screen, and the guide posts are contacted with the surface of the LED display screen.
Preferably, the power supply unit is arranged in an installation cavity at the other side of the lifting platform, the power supply unit comprises a socket cell, the socket cell is arranged in a fixed shell, a guide hole is formed in the fixed shell, and the fixed shell is slidably arranged on a horizontal guide rod arranged in the installation cavity through the guide hole; the installation cavity is provided with a connector jack, and a connector of the LED display screen placed on the lifting platform is inserted into the connector jack and connected with a socket cell in the installation cavity; and a translation unit is further arranged on the installation inner cavity and is connected with the electric leakage detection unit through a controller signal, and when the electric leakage detection unit detects electric leakage of the LED display screen, the translation unit drives the socket electric core to move along the guide rod so that the socket electric core is disconnected with the connector of the LED display screen.
Preferably, triangular lugs are arranged at the top ends of the two sides of the fixed shell along the length direction of the guide rod, and the hypotenuses of the triangular lugs incline towards the lower sides of the two sides; the translation unit comprises a first sliding plate and a second sliding plate which are slidably mounted at the top of the mounting cavity, the first sliding plate and the second sliding plate are vertically arranged, inclined planes attached to the inclined surfaces of the triangular convex blocks are arranged at the bottoms of the first sliding plate and the second sliding plate, and the first sliding plate and the second sliding plate do opposite synchronous movement in the vertical direction to drive the socket battery cell to slide along the guide rod.
Preferably, the opposite sides of the first sliding plate and the second sliding plate are respectively provided with tooth grooves, a transmission gear is respectively connected with the tooth grooves on the first sliding plate and the second sliding plate in a meshed mode, a rotating shaft of the transmission gear is horizontally arranged, one end of the transmission gear is in transmission connection with a worm wheel, the worm wheel is connected with a worm in a meshed mode, a rotating shaft of the worm is perpendicular to the axis of the worm wheel, and the worm is used for driving the first sliding plate and the second sliding plate to reversely move in a rotary mode.
Preferably, one end of a sliding seat of the circulating water delivery device is provided with a third linear driver, the working end of the third linear driver is fixedly provided with a control board, the third linear driver drives the control board to move in the vertical direction, the control board is provided with a second ratchet capable of rotating in one direction, and the third linear driver is connected with the electric leakage detection unit through a controller signal; and the two ends of the worm are coaxially provided with rotary gears, the second ratchet is meshed with the rotary gears after the control panel descends, and the second ratchet drives the rotary gears to rotate when the lifting platform moves upwards.
Compared with the prior art, the application has the beneficial effects that:
firstly, the LED display screen is placed through the lifting platform, the power supply unit supplies power to the LED display screen, the electric leakage detection unit detects whether the LED display screen leaks electricity, the electric connection between the power supply unit and the LED display screen is automatically cut off when the electric leakage detection unit detects that the LED display screen leaks electricity, electric shock is avoided when workers take the leaked LED display screen, the water in the water collecting tank is sucked by the circulating water supply device to spray the surface of the LED display screen, therefore the waterproof performance of the LED display screen is detected, and the water in the LED display screen sucked by the circulating water supply device is sprayed to the surface of the LED display screen and finally flows back into the water collecting tank, so that the recycling of water resources is realized.
The circulating water delivery device in the application realizes the water delivery by rotating the rotary driving block in the pump body, and the rotary driving block is connected with the sliding seat through a mechanical structure, so that the water spray pipe can automatically spray water when the sliding seat moves, and the rotary driving block is not driven to reversely rotate in the resetting process of the water spray pipe by the existence of the first ratchet and the ratchet wheel, so that the water in the sliding seat can not reversely flow when the water spray pipe resets, certain water is reserved in the water spray pipe and the sliding seat, and the spray head of the water spray pipe can spray water to the surface of the LED display screen at the first time when the rotary driving block is driven to rotate by the next movement of the water spray pipe.
Thirdly, the electric leakage detection unit detects electric leakage and then sends a signal to the third linear driver on one side of the sliding seat, and the third linear driver is matched with the translation unit to realize that the translation unit contacts with the second ratchet to automatically drive the fixed shell to move so as to disconnect the LED display screen from the power supply unit in the process that the lifting platform drives the LED display screen to move upwards for resetting, so that the electric shock caused by manual operation of a worker is avoided.
Drawings
FIG. 1 is a perspective view of an LED display screen detection device in a first operating state;
FIG. 2 is a side view of the LED display screen detection device in a first operational state;
FIG. 3 is a cross-sectional view taken along the direction A-A of FIG. 2;
FIG. 4 is an enlarged view of a portion at B of FIG. 3;
FIG. 5 is an enlarged view of a portion of FIG. 2 at C;
FIG. 6 is a front view of the LED display screen detection device in a first operating state;
FIG. 7 is a partial enlarged view at D of FIG. 6;
FIG. 8 is a side view of the LED display screen detection device in a second operational state;
FIG. 9 is an enlarged view of a portion at E of FIG. 8;
FIG. 10 is a perspective view of the LED display screen detection device in a first operating state;
fig. 11 is a partial enlarged view at F of fig. 10.
The reference numerals in the figures are: 1. a water collection tank; 11. a lifting platform; 111. a first linear driver; 112. a fixing seat; 113. a water passing hole; 12. an inner cavity is arranged; 121. a guide rod; 122. a connector jack; 13. a translation unit; 131. a first slide plate; 132. a second slide plate; 133. tooth slots; 134. a transmission gear; 135. a worm wheel; 136. a worm; 137. a rotary gear; 2. a power supply unit; 21. a socket cell; 22. a fixed housing; 221. triangular protruding blocks; 3. a leakage detection unit; 31. a guide post; 4. a circulating water supply device; 41. a water spray pipe; 411. a spray head; 42. a slide; 421. a connecting arm; 422. a rack; 43. a second linear driver; 44. a water outlet pipe; 441. a soft flow tube; 442. a pump body; 443. a rotary driving block; 444. a shaft lever; 445. a ratchet wheel; 446. a first bevel gear; 447. a second bevel gear; 448. a synchronizing gear; 449. a first ratchet; 45. a third linear driver; 451. a control board; 452. and a second ratchet.
Detailed Description
The application will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the application and the specific objects and functions achieved.
Referring to fig. 1 to 11, there is shown:
the LED display screen detection method comprises the following steps:
step one, fixing an LED display screen to be tested;
step two, connecting the electric leakage detection equipment with an LED display screen to be detected to detect electric leakage;
step three, sprinkling water on the surface of the LED display screen to be tested, and performing waterproof detection;
and step four, taking down the tested LED display screen, replacing the LED display screen, and repeating the step one to the step three.
The LED display screen detection device is applied to the LED display screen detection method and comprises a frame and a water collecting tank 1 with an upward opening, wherein quantitative water is stored in the water collecting tank 1, a lifting platform 11 is arranged in the water collecting tank 1, the lifting platform 11 is used for installing an LED display screen, the lifting platform 11 is fixedly connected with the working end of a first linear driver 111, and the first linear driver 111 drives the lifting platform 11 to move up and down in the water collecting tank 1; a power supply unit 2 is arranged on one side of the lifting platform 11, and a connector of the LED display screen is connected with the power supply unit 2 to be connected with a power supply; the other side of the lifting platform 11 is provided with a leakage detection unit 3, and when the leakage detection unit 3 detects that the LED display screen leaks, the connection between the LED display screen and the power supply unit 2 is cut off; the machine frame is also provided with a circulating water delivery device 4, the circulating water delivery device 4 comprises a spray pipe 41, the spray pipe 41 is slidably mounted on the machine frame through a sliding seat 42, the working end of a second linear driver 43 is connected with the sliding seat 42, the second linear driver 43 is used for driving the spray pipe 41 to horizontally move, a plurality of spray heads 411 which are distributed at equal intervals along the moving direction perpendicular to the sliding seat 42 are arranged at the bottom of the spray pipe 41, and water in the water collection tank 1 is sucked to spray on the surface of the LED display screen when the spray pipe 41 moves.
The LED display screen detection device of the application is applied to the LED display screen detection method, when a worker detects the LED display screen, the first linear driver 111 drives the lifting platform 11 to rise to the opening of the water collection tank 1, the LED display screen is arranged on the lifting platform 11 and is connected with the power supply unit 2 on one side of the lifting platform 11 through the connector to electrify the LED display screen, then the lifting platform 11 moves down to enable the LED display screen to be positioned in the water collection tank 1, a certain amount of water is stored in the water collection tank 1, the lifting platform 11 can be lowered until the LED display screen is contacted or not contacted with the water according to the detection condition, after the LED display screen is positioned in the water collection tank 1, the circulating water delivery device 4 is started, the circulating water delivery device 4 sucks the water in the water collection tank 1 to be delivered to the water spray pipe 41 on the top of the water collection tank 1, the water spraying pipe 41 horizontally moves under the drive of the second linear driver 43 and sprays water to the surface of the LED display screen uniformly through the spray nozzle 411, the electric leakage detection unit 3 detects the electric leakage condition of the LED display screen in the period, when the electric leakage detection unit 3 detects that the electric leakage exists in the LED display screen, the electric leakage detection unit 3 sends a signal to the controller, the controller controls the LED display screen to be disconnected with the power supply unit 2, so that after the detection is completed and the lifting platform 11 drives the LED display screen to reset, the worker is powered off when contacting the LED display screen, electric shock is avoided, the circulating water delivery device 4 in the embodiment sucks water in the water tank 1 and sprays the water into the water tank 1, the water in the water tank 1 is recycled, the experiment sustainability is improved, the resource is saved, the first linear driver 111 in the embodiment can be a linear cylinder or an oil cylinder and the like, the second linear actuator 43 may be a conveyor belt or a sliding table.
In order to achieve the purpose that the circulating water delivery device 4 can deliver the water in the water collection tank 1 to the water spray pipe 41 at the top of the water collection tank 1, the following characteristics are specifically provided:
the circulating water delivery device 4 further comprises a water outlet pipe 44 connected with the bottom of the water collection tank 1, the other end of the water outlet pipe 44 is connected with a water spray pipe 41, a soft flow pipe 441 is arranged on the water outlet pipe 44, the soft flow pipe 441 penetrates through a cavity in the pump body 442, a rotary driving block 443 is rotatably arranged in the pump body 442, the soft flow pipe 441 surrounds the periphery of the rotary driving block 443, a plurality of pressing wheels are equidistantly inserted on the periphery of the rotary driving block 443, and the rotating shafts of the pressing wheels and the rotary driving block 443 are perpendicular to the extending direction of the soft flow pipe 441; the rotation driving block 443 rotates to make the pinch roller press the soft flow tube 441 to convey the water in the soft flow tube 441 into the water spray tube 41.
The circulating water delivery device 4 in this embodiment sets up outlet pipe 44 in water header 1 bottom, and the water in the water header 1 gets into outlet pipe 44 under the action of gravity, and the soft flow pipe 441 in water header 44 bottom passes inside the pump body 442, and when the rotatory drive piece 443 in the pump body 442 was rotatory, the pinch roller extrusion soft flow pipe 441 in the water of pinch roller drive piece 443 week side was carried in to spray pipe 41, and the pump body 442 is equivalent to the peristaltic pump among the prior art, can be continuous with the water in the water header 1 carry in spray pipe 41 to the LED display screen spray.
In order to achieve the purpose of automatically driving the pump body 442 to work when the slide carriage 42 moves, the following features are specifically set:
the axis of the rotary driving block 443 is provided with a shaft rod 444, the shaft rod 444 is inserted on the pump body 442 to extend to the outside of the pump body 442, a ratchet 445 and a first bevel gear 446 are coaxially arranged on the shaft rod 444, the ratchet 445 is in transmission connection with the shaft rod 444, the first bevel gear 446 is in meshed connection with a second bevel gear 447, the axis of the second bevel gear 447 is vertically arranged, and the second bevel gear 447 is coaxially connected with a synchronous gear 448; at least one first ratchet 449 is hinged on the first bevel gear 446, and the first ratchet 449 enables the ratchet 445 to rotate unidirectionally only along with the first bevel gear 446; a connecting arm 421 is fixedly arranged on one side of the sliding seat 42, a horizontal rack 422 is arranged at the bottom of the connecting arm 421, the rack 422 is meshed with the synchronous gear 448, and the sliding seat 42 moves to drive the rotary driving block 443 to rotate.
In this embodiment, the rotation driving block 443 of the circulating water delivery device 4 is not driven by an electrical element, the rotation driving block 443 is inserted on the pump body 442 through the shaft 444, the shaft 444 is in transmission connection with the ratchet 445 to realize synchronous rotation, the shaft 444 is coaxially provided with a first bevel gear 446, a first ratchet 449 on the first bevel gear 446 is in transmission with the ratchet 445, when the slide 42 drives the spray pipe 41 to move above the LED display screen, the slide 42 drives the rack 422 to move through the connecting arm 421, the rack 422 moves to drive the synchronous gear 448 in meshed connection with the synchronous gear 447 and a second bevel gear 447 in transmission connection with the synchronous gear 447 to synchronously rotate, the second bevel gear 447 drives the first bevel gear 446 to rotate, at this time, the first ratchet 449 on the first bevel gear 446 pushes the shaft 444 to rotate with the ratchet 445, when the slide 42 drives the spray pipe 41 to reset, the first ratchet 449 does not push the ratchet 445 to rotate, thus the slide 41 is not driven to reversely rotate in the process of resetting the spray pipe 41, and the spray pipe 41 can not be driven to reversely rotate when the spray pipe 41 resets, and the spray pipe 41 is driven to reversely rotate in the same time as the spray pipe 41 is driven by the first bevel pipe 41 to rotate to the spray pipe 41.
In order to ensure that the water sprayed by the spray pipe 41 can flow back to the bottom of the water collection tank 1, the following features are specifically provided:
a fixed seat 112 is arranged at the center of the upper side of the lifting platform 11, water passing holes 113 surrounding the periphery of the fixed seat 112 are arranged on the lifting platform 11, and water sprayed by the spray head 411 flows back to the water outlet pipe 44 through the water passing holes 113.
In this embodiment, the LED display screen is mounted on the fixing seat 112 of the lifting platform 11, the water passing holes 113 on the periphery of the fixing seat 112 convey the water left from the LED display screen to the bottom, so that the water sprayed by the water spraying pipe 41 can enter the sliding seat 42 below the lifting platform 11, and when the water spraying pipe 41 sprays, the lifting platform 11 is located inside the water collecting tank 1, and the water sprayed by the spray nozzle 411 is not easy to splash to cause waste.
In order to realize that the leakage detection unit 3 detects the leakage state of the LED display screen, the following characteristics are specifically set:
the both sides of lift platform 11 are provided with installation inner chamber 12, and electric leakage detection unit 3 installs in the installation inner chamber 12 of lift platform 11 one side, and electric leakage detection unit 3 includes a plurality of guide pillar 31 that are used for detecting LED display screen electric leakage state, guide pillar 31 contact LED display screen surface.
In this embodiment, the detection personnel place the LED display screen on the lifting platform 11, make the guide pillar 31 of the electric leakage detection unit 3 contact with the LED display screen respectively, thereby can detect whether there is electric leakage on two places of the LED screen and the power cord, the electric leakage detection unit 3 is installed in the installation cavity 12 of one of them side of lifting platform 11 both sides, guarantee that the electric leakage detection unit 3 can follow the lifting platform 11 and remove, the electric leakage detection unit 3 can adopt prior art, do not do too much here and repeat.
In order to achieve the purpose that the power supply unit 2 can supply power to the LED display screen during detection, the following characteristics are specifically set:
the power supply unit 2 is arranged in the installation cavity 12 at the other side of the lifting platform 11, the power supply unit 2 comprises a socket cell 21, the socket cell 21 is arranged in a fixed shell 22, a guide hole is arranged on the fixed shell 22, and the fixed shell 22 is slidably arranged on a horizontal guide rod 121 arranged in the installation cavity 12 through the guide hole; the installation cavity 12 is provided with a connector jack 122, and a connector of the LED display screen placed on the lifting platform 11 is inserted into the connector jack 122 to be connected with the socket cell 21 in the installation cavity 12; the translation unit 13 is further arranged on the installation cavity 12, the translation unit 13 is connected with the electric leakage detection unit 3 through a controller signal, and when the electric leakage detection unit 3 detects electric leakage of the LED display screen, the translation unit 13 drives the socket electric core 21 to move along the guide rod 121 so that the socket electric core 21 is disconnected with a connector of the LED display screen.
In this embodiment, the LED display screen installed on the lifting platform 11 inserts the connector into the connector jack 122 on one side of the lifting platform 11, so that the connector is connected with the socket cell 21 of the power supply unit 2 in the installation cavity 12, the socket cell 21 is connected with a power supply to enable the LED display screen to work normally, a worker sprays water to the surface of the LED display screen through the circulating water supply device 4 to observe whether the LED display screen can work normally, thereby judging the waterproof performance of the LED display screen, when the leakage detection unit 3 detects that the LED display screen has electric leakage, the leakage detection unit 3 sends a signal to the controller, the controller can control the translation unit 13 to enable the fixed shell 22 of the installation socket cell 21 to move, the connector of the LED display screen is limited and fixed by the connector jack 122, and thus the connection between the connector and the socket cell 21 is disconnected, so that the LED display screen is disconnected when the worker takes down the leaked LED display screen, and the risk of electric shock is avoided. In this embodiment, the fixed housing 22 slides on the guide rod 121 on the installation cavity 12 through the guide hole, so as to ensure that the socket battery core 21 translates in the horizontal direction, and thus, the connection and disconnection between the socket battery core 21 and the connector are smoother.
In order to achieve the purpose that the translation unit 13 can drive the socket cell 21 to move, the following features are specifically set:
triangular projections 221 are arranged at the top ends of the two sides of the fixed shell 22 along the length direction of the guide rod 121, and the hypotenuses of the triangular projections 221 incline downwards towards the two sides; the translation unit 13 comprises a first sliding plate 131 and a second sliding plate 132 which are slidably mounted at the top of the mounting cavity 12, the first sliding plate 131 and the second sliding plate 132 are vertically arranged, inclined planes attached to the inclined surfaces of the triangular protruding blocks 221 are arranged at the bottoms of the first sliding plate 131 and the second sliding plate 132, and the first sliding plate 131 and the second sliding plate 132 do opposite synchronous movement in the vertical direction to drive the socket battery cells 21 to slide along the guide rods 121.
In the embodiment, a mounting frame is arranged above a mounting cavity 12 for mounting a power supply unit 2, a first sliding plate 131 and a second sliding plate 132 for limiting and mounting a translation unit 13 are arranged, so that the first sliding plate 131 and the second sliding plate 132 can slide in the vertical direction, inclined planes at the bottoms of the first sliding plate 131 and the second sliding plate 132 are attached to the inclined edges of triangular lugs 221 at two sides of a fixed shell 22, and therefore when the first sliding plate 131 and the second sliding plate 132 move oppositely, the position of the fixed shell 22 on a guide rod 121 can be changed by attaching the surfaces of the triangular lugs 221, and when a connector is required to be inserted into a socket cell 21 to supply power for an LED display screen, the first sliding plate 131 far away from the connector moves downwards, and the second sliding plate 132 close to the connector moves upwards, so that the socket cell 21 is close to a connector jack 122, and the connector is convenient to be inserted into the socket cell 21; when the electric leakage detection unit 3 detects electric leakage of the LED display screen, the first sliding plate 131 far away from the connector moves upwards, the second sliding plate 132 close to the connector moves downwards, the socket cell 21 is moved towards one end far away from the connector by the cooperation of the triangular lug 221, the connector is separated from the socket cell 21, and power failure of the LED display screen is realized.
In order to achieve the purpose that the first slide plate 131 and the second slide plate 132 can synchronously move reversely and lock the positions thereof, the following features are specifically provided:
the opposite sides of the first sliding plate 131 and the second sliding plate 132 are respectively provided with tooth grooves 133, a transmission gear 134 is respectively meshed with the tooth grooves 133 on the first sliding plate 131 and the second sliding plate 132, the rotation shaft of the transmission gear 134 is horizontally arranged, one end of the transmission gear 134 is in transmission connection with a worm wheel 135, the worm wheel 135 is meshed with a worm 136, the rotation shaft of the worm 136 is horizontally arranged perpendicular to the axis of the worm wheel 135, and the worm 136 rotationally drives the first sliding plate 131 and the second sliding plate 132 to reversely move.
Tooth grooves 133 arranged on opposite sides of the first sliding plate 131 and the second sliding plate 132 in the embodiment are respectively connected with a transmission gear 134 in a meshed manner, a worm wheel 135 coaxially arranged at one end of the transmission gear 134 is connected with a worm 136 in a meshed manner, so that the worm wheel 135 and the transmission gear 134 can be driven to synchronously rotate when the worm 136 rotates, the transmission gear 134 rotates to enable the first sliding plate 131 and the second sliding plate 132 positioned on two sides of the transmission gear 134 to synchronously move in the opposite directions, movement of the socket battery core 21 is achieved, a self-locking effect is achieved between the worm wheel 135 and the worm 136, and therefore the position of the socket battery core 21 after movement is stable.
In order to realize the purpose that the electric leakage detection unit 3 can control the translation unit 13 to automatically change the position of the socket battery cell 21, the following features are specifically set:
a third linear driver 45 is arranged at one end of the sliding seat 42 of the circulating water delivery device 4, a control board 451 is fixedly arranged at the working end of the third linear driver 45, the third linear driver 45 drives the control board 451 to move in the vertical direction, a second ratchet 452 capable of rotating unidirectionally is arranged on the control board 451, and the third linear driver 45 is connected with the electric leakage detection unit 3 through a controller signal; the two ends of the worm 136 are coaxially provided with a rotary gear 137, the second ratchet 452 is meshed with the rotary gear 137 after the control board 451 descends, and the second ratchet 452 drives the rotary gear 137 to rotate when the lifting platform 11 moves upwards.
In this embodiment, the sliding seat 42 drives the third linear driver 45 and the control board 451 to move synchronously, the third linear driver 45 may be an air cylinder or an electric push rod, etc., during normal detection, the translation unit 13 controls the socket electric core 21 to be close to the connector jack 122, the third linear driver 45 drives the control board 451 to move upwards away from the translation unit 13, the electric leakage detection unit 3 detects a signal generated after the LED display screen leaks to the controller, the controller controls the third linear driver 45 to drive the control board 451 to move downwards, so that the second ratchet 452 moves downwards, the second ratchet 452 can only rotate downwards on the control board 451, and through the elastic piece, the rotating gear 137 contacts with the second ratchet 452 to drive the worm 136 to rotate, so that the socket electric core 21 is far away from the connector, automatic power-off of the LED display screen is realized, the presence of the second ratchet 452 enables a worker to manually rotate the worm 136 after reinstalling the LED display screen, the LED display screen is convenient to move downwards, the LED display screen is convenient to be detected downwards, the second ratchet 452 is driven to move downwards, and the second ratchet 452 is connected with the control board 45 after the power supply unit is reset, and the second ratchet 452 is driven to move downwards, and the second ratchet 45 is driven to wait for the first power-on and the electric leakage detection unit 45 is driven downwards, and is driven to wait for the second power-on to move downwards, and the electric signal is reset after the power supply unit is reset to move downwards, and the second ratchet is driven, and the power is driven to move upwards and has been reset, and has been turned on, and has a stand, and has a stand device.
Working principle: when a worker detects the LED display screen, the first linear driver 111 drives the lifting platform 11 to rise to the opening of the water collecting tank 1, the LED display screen is arranged on the lifting platform 11 and is connected with the socket cell 21 of the power supply unit 2 on one side of the lifting platform 11 through the connector, the LED display screen is electrified, then the lifting platform 11 moves downwards to enable the LED display screen to be located inside the water collecting tank 1, the circulating water supply device 4 is started, the sliding seat 42 drives the rotary driving block 443 to convey water in the water collecting tank 1 to the water spraying pipe 41 on the top of the water collecting tank 1 when the water spraying pipe 41 is driven to move, the spray nozzle 411 uniformly sprays water to the surface of the LED display screen, the worker detects the waterproof performance of the LED display screen and the leakage condition of the LED display screen during the period, when the leakage detection unit 3 detects that the LED display screen has leakage, the leakage detection unit 3 sends a signal to the controller, the controller controls the third linear driver 45 to drive the control panel 451 to move downwards, the lifting platform 11 drives the LED display screen to move upwards to reset, and the translation unit 13 contacts the second ratchet to drive the fixed shell 22 to move to enable the LED display screen to be connected with the power supply unit 2.
The foregoing examples merely illustrate one or more embodiments of the application, which are described in greater detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (9)

  1. The LED display screen detection device is applied to an LED display screen detection method and is characterized by comprising a frame and a water collecting tank (1) with an upward opening, wherein quantitative water is stored in the water collecting tank (1), a lifting platform (11) is arranged in the water collecting tank (1), the lifting platform (11) is used for installing an LED display screen, the lifting platform (11) is fixedly connected with the working end of a first linear driver (111), and the first linear driver (111) drives the lifting platform (11) to move up and down in the water collecting tank (1);
    a power supply unit (2) is arranged on one side of the lifting platform (11), and a connector of the LED display screen is connected with the power supply unit (2) to be connected with a power supply;
    the other side of the lifting platform (11) is provided with a leakage detection unit (3), and the leakage detection unit (3) cuts off the connection between the LED display screen and the power supply unit (2) when detecting the leakage of the LED display screen;
    the machine frame is also provided with a circulating water delivery device (4), the circulating water delivery device (4) comprises a water spray pipe (41), the water spray pipe (41) is slidably arranged on the machine frame through a sliding seat (42), the working end of a second linear driver (43) is connected with the sliding seat (42), the second linear driver (43) is used for driving the water spray pipe (41) to horizontally move, a plurality of spray heads (411) which are distributed at equal intervals along the moving direction perpendicular to the sliding seat (42) are arranged at the bottom of the water spray pipe (41), and water in a water collecting tank (1) is sucked to spray on the surface of an LED display screen when the water spray pipe (41) moves;
    the LED display screen detection method comprises the following steps:
    step one, fixing an LED display screen to be tested;
    step two, connecting the electric leakage detection equipment with an LED display screen to be detected to detect electric leakage;
    step three, sprinkling water on the surface of the LED display screen to be tested, and performing waterproof detection;
    and step four, taking down the tested LED display screen, replacing the LED display screen, and repeating the step one to the step three.
  2. 2. The LED display screen detection device according to claim 1, wherein the circulating water delivery device (4) further comprises a water outlet pipe (44) connected with the bottom of the water collection tank (1), the other end of the water outlet pipe (44) is connected with a water spray pipe (41), a section of soft flow pipe (441) is arranged on the water outlet pipe (44), the soft flow pipe (441) penetrates through an inner cavity of the pump body (442), a rotary driving block (443) is rotatably arranged in the pump body (442), the soft flow pipe (441) surrounds the peripheral side of the rotary driving block (443), a plurality of pressing wheels are inserted at equal intervals on the peripheral side of the rotary driving block (443), and the rotating shafts of the pressing wheels and the rotary driving block (443) are perpendicular to the extending direction of the soft flow pipe (441);
    the rotation driving block (443) rotates to enable the pinch roller to press the soft flow pipe (441) to convey water in the soft flow pipe (441) into the water spraying pipe (41).
  3. 3. The LED display screen detection device according to claim 2, characterized in that a shaft lever (444) is provided at the axis of the rotation driving block (443), the shaft lever (444) is inserted on the pump body (442) to extend to the outside of the pump body (442), a ratchet wheel (445) and a first bevel gear (446) are coaxially installed on the shaft lever (444), the ratchet wheel (445) is in transmission connection with the shaft lever (444), the first bevel gear (446) is in meshed connection with a second bevel gear (447), the axis of the second bevel gear (447) is vertically arranged, and the second bevel gear (447) is coaxially connected with a synchronizing gear (448);
    at least one first ratchet (449) is hinged on the first bevel gear (446), and the first ratchet (449) enables the ratchet (445) to rotate unidirectionally along with the first bevel gear (446);
    one side of the sliding seat (42) is fixedly provided with a connecting arm (421), the bottom of the connecting arm (421) is provided with a horizontal rack (422), the rack (422) is meshed with a synchronous gear (448), and the sliding seat (42) moves to drive the rotary driving block (443) to rotate.
  4. 4. The LED display screen detection device according to claim 3, wherein a fixing seat (112) is arranged at the center of the upper side of the lifting platform (11), water passing holes (113) surrounding the periphery of the fixing seat (112) are formed in the lifting platform (11), and water sprayed by the spray head (411) flows back to the water outlet pipe (44) through the water passing holes (113).
  5. 5. The LED display screen detection device according to claim 1, wherein the two sides of the lifting platform (11) are provided with mounting cavities (12), the leakage detection unit (3) is mounted in the mounting cavities (12) at one side of the lifting platform (11), the leakage detection unit (3) comprises a plurality of guide posts (31) for detecting the leakage state of the LED display screen, and the guide posts (31) are in contact with the surface of the LED display screen.
  6. 6. The LED display screen detection device according to claim 5, characterized in that the power supply unit (2) is installed in an installation cavity (12) at the other side of the lifting platform (11), the power supply unit (2) comprises a socket electric core (21), the socket electric core (21) is installed in a fixed housing (22), a guide hole is arranged on the fixed housing (22), and the fixed housing (22) is slidably installed on a horizontal guide rod (121) arranged in the installation cavity (12) through the guide hole;
    a connector jack (122) is arranged on the installation cavity (12), and a connector of the LED display screen placed on the lifting platform (11) is inserted into the connector jack (122) to be connected with a socket cell (21) in the installation cavity (12);
    the installation cavity (12) is further provided with a translation unit (13), the translation unit (13) is connected with the electric leakage detection unit (3) through a controller signal, and when the electric leakage detection unit (3) detects electric leakage of the LED display screen, the translation unit (13) drives the socket electric core (21) to move along the guide rod (121) so that the socket electric core (21) is disconnected with a connector of the LED display screen.
  7. 7. The LED display screen detection apparatus according to claim 6, wherein triangular protrusions (221) are provided at both side top ends of the fixed housing (22) in the length direction of the guide bar (121), and the hypotenuse of the triangular protrusions (221) is inclined toward both sides downward;
    the translation unit (13) comprises a first sliding plate (131) and a second sliding plate (132) which are slidably mounted at the top of the mounting inner cavity (12), the first sliding plate (131) and the second sliding plate (132) are vertically arranged, inclined planes attached to the inclined side surfaces of the triangular protruding blocks (221) are arranged at the bottoms of the first sliding plate (131) and the second sliding plate (132), and the first sliding plate (131) and the second sliding plate (132) do opposite synchronous movement in the vertical direction to drive the socket battery cell (21) to slide along the guide rod (121).
  8. 8. The LED display screen detection device according to claim 7, wherein the opposite sides of the first sliding plate (131) and the second sliding plate (132) are respectively provided with tooth grooves (133), a transmission gear (134) is respectively engaged with the tooth grooves (133) on the first sliding plate (131) and the second sliding plate (132), the rotation shaft of the transmission gear (134) is horizontally arranged, one end of the transmission gear (134) is in transmission connection with a worm wheel (135), the worm wheel (135) is engaged with a worm (136), the rotation shaft of the worm (136) is horizontally arranged perpendicular to the axis of the worm wheel (135), and the worm (136) rotationally drives the first sliding plate (131) and the second sliding plate (132) to reversely move.
  9. 9. The LED display screen detection device according to claim 8, wherein a third linear driver (45) is provided at one end of the sliding seat (42) of the circulating water supply device (4), a control board (451) is fixed at the working end of the third linear driver (45), the third linear driver (45) drives the control board (451) to move in the vertical direction, a second ratchet (452) capable of unidirectional rotation is provided on the control board (451), and the third linear driver (45) is connected with the leakage detection unit (3) through a controller signal;
    the two ends of the worm (136) are coaxially provided with rotary gears (137), the second ratchet (452) is meshed with the rotary gears (137) after the control board (451) descends, and the second ratchet (452) drives the rotary gears (137) to rotate when the lifting platform (11) moves upwards.
CN202310636565.8A 2023-06-01 2023-06-01 LED display screen detection method and detection device thereof Active CN116338519B (en)

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Publication number Priority date Publication date Assignee Title
JP2000283879A (en) * 1999-03-30 2000-10-13 Pacific Ind Co Ltd Inspection device for waterproofness of electronic equipment
WO2009027036A1 (en) * 2007-08-29 2009-03-05 Tyco Electronics Amp Gmbh Method and device for testing an electrical connection device with regard to leakproofness
CN113075583A (en) * 2021-04-03 2021-07-06 陈锡青 LED screen detection system and detection method
CN114365364A (en) * 2019-07-15 2022-04-15 尚科宁家运营有限公司 Appliance with integrated ground fault detection

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102544778B1 (en) * 2016-06-16 2023-06-19 삼성전자주식회사 Method for detecting leakage current and electronic device supporting the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000283879A (en) * 1999-03-30 2000-10-13 Pacific Ind Co Ltd Inspection device for waterproofness of electronic equipment
WO2009027036A1 (en) * 2007-08-29 2009-03-05 Tyco Electronics Amp Gmbh Method and device for testing an electrical connection device with regard to leakproofness
CN114365364A (en) * 2019-07-15 2022-04-15 尚科宁家运营有限公司 Appliance with integrated ground fault detection
CN113075583A (en) * 2021-04-03 2021-07-06 陈锡青 LED screen detection system and detection method

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