Display screen cleaning device

Abstract

The utility model relates to a display screen cleaning device which comprises a rack, two clamping plates and a cleaning piece, the two clamping plates are provided with clamping cavities in a spaced mode, the rack is connected with a sliding block, the cleaning piece is connected to the sliding block, the rack is connected with a sliding assembly, the sliding assembly is used for driving the sliding block to move back and forth in the length direction of a display screen, and the rack is connected with a moving assembly. The moving assembly is used for driving the two clamping plates to be slidably connected to the rack in the length direction of the display screen, and the length direction of the cleaning piece is adjustable. The length of the cleaning part is adjusted according to the width of the display screen, so that the cleaning part can clean the display screens with different widths conveniently, the distance between the clamping plates is adjustable, and the cleaning device can adapt to the display screens with different sizes conveniently.

Description

Technical Field

[0001] The present application relates to the field of display screens, and in particular, to a cleaning device for display screens. Background Art

[0002] A touch full-color microphone is usually connected to a dedicated display. After long-term use of the display, dust and other pollutants will adhere to the surface of the display. Since dust and other pollutants will adhere to the surface of the white light display screen after use, the current cleaning of the white light display screen is usually manually cleaned by using a clean cleaning cotton. Considering improving the cleaning efficiency and saving the user's time, a display screen cleaning device is usually used to clean the display screen.

[0003] Chinese Patent with the authorization announcement number CN114887946A discloses a cleaning device, especially a cleaning device for a liquid crystal display screen before leaving the factory. The technical problem to be solved by the present invention is to provide a cleaning device for a liquid crystal display screen before leaving the factory with relatively high cleaning efficiency and without manually using a handkerchief or a towel to clean the liquid crystal display screen. To solve the above technical problems, the present invention provides such a cleaning device for a liquid crystal display screen before leaving the factory, including: a bottom plate, a clamping mechanism, on which support feet are connected; a first fixed rod, which is connected to the bottom plate. The bevel gear rotates to drive the twist rod to rotate, the twist rod rotates to drive the transmission component to rotate, the transmission component rotates to drive the first movable block to move downward, the first movable block moves downward to drive the brush to move downward, and the brush moves downward to contact the liquid crystal display screen to be cleaned, thereby achieving the effect of cleaning the liquid crystal display screen and saving manpower.

[0004] In view of the above related technologies, the length of the brush is limited, so the cleaning range of the brush is limited, and the clamping mechanism is applicable to a relatively small range of display screen sizes. Therefore, the cleaning device is applicable to a relatively small range of display screen sizes. Utility Model Content

[0005] In order to facilitate the cleaning device to adapt to display screens of different sizes and increase the range of display screen sizes applicable to the cleaning device, the present application provides a cleaning device for display screens.

[0006] The cleaning device for display screens provided by the present application adopts the following technical solutions:

[0007] A cleaning device for a display screen, comprising a frame, clamping plates, and a cleaning member. There are two clamping plates, and the two clamping plates are arranged at intervals along the length direction of the display screen. A clamping cavity for placing the display screen is provided at intervals between the two clamping plates. The frame is connected with a slider, and the cleaning member is connected to the slider. The frame is connected with a sliding component, and the sliding component is used to drive the slider to move back and forth along the length direction of the display screen. The frame is connected with a moving component, and the moving component is used to drive the two clamping plates to be slidably connected to the frame along the length direction of the display screen and drive the two clamping plates to approach or separate from each other. The length direction of the cleaning member is consistent with the width direction of the display screen, and the length of the cleaning member is adjustable.

[0008] By adopting the above technical solution, when cleaning the display screen, the display screen is placed in the clamping cavity. The moving component drives the two clamping plates to be slidably connected to the frame along the length direction of the display screen, so that the two clamping plates clamp both sides of the display screen. The length of the cleaning member is adjusted according to the width of the display screen, so as to facilitate the cleaning member to clean display screens of different widths. Moreover, the distance between the clamping plates is adjustable, so as to facilitate the cleaning device to adapt to display screens of different sizes.

[0009] Optionally, the cleaning member includes two moving rods. The length direction of the moving rods is consistent with the width direction of the display screen. The two moving rods are distributed at intervals along the length direction of the display screen, and the two moving rods are arranged in parallel. There is an overlapping part between the two moving rods. The moving rods are connected to the slider. The slider is connected with a driving component. The driving component is used to drive the two moving rods to move along the width direction of the display screen and drive the length of the overlapping part of the two moving rods to increase or decrease. A cleaning cotton is connected to the side of the moving rod away from the slider, and the length direction of the cleaning cotton is consistent with the length direction of the moving rod.

[0010] By adopting the above technical solution, when cleaning display screens of different widths, the driving component drives the two moving rods to move relatively along the width direction of the display screen, so that the length of the overlapping part of the two moving rods increases or decreases, thereby changing the length of the cleaning member and further adapting to display screens of different widths.

[0011] Optionally, the driving component includes a gear, a first motor, and two racks. The gear is rotatably connected to the slider close to the display screen. An installation cavity is formed in the slider. The first motor is arranged in the installation cavity, and the output shaft of the first motor is connected to the gear. The two racks are arranged on both sides of the gear along the length direction of the display screen. The length direction of the racks is consistent with the length direction of the clamping plates. The racks correspond to the moving rods one by one. One side of the rack is connected to the moving rod, and both of the two racks are meshed with the gear.

[0012] By adopting the above technical solution, the first motor drives the gear to rotate, thereby driving the two racks to move along the length direction of the display screen. The moving rod follows the movement of the rack, so that the overlapping part of the two moving rods increases or decreases, thereby changing the length of the cleaning member.

[0013] Optionally, the frame is provided with a moving groove. The length direction of the moving groove is the same as the length direction of the display screen. The length direction of the slider is the same as the thickness direction of the display screen. One end of the slider along its length direction is connected to the moving rod, and the other end of the slider is embedded in the moving groove. The slider is slidably connected to the moving groove along the length direction of the display screen. The sliding assembly includes a lead screw and a second motor. The length direction of the lead screw is the same as the length direction of the display screen. The lead screw is rotatably connected to the moving groove. The second motor is connected to the frame, and the output shaft of the second motor is connected to one end of the lead screw. The end of the slider away from the moving rod is threadedly sleeved on the lead screw.

[0014] By adopting the above technical solution, the second motor drives the lead screw to rotate, driving the slider to be slidably connected to the moving groove along the length direction of the display screen, thereby driving the slider to drive the cleaning member to move back and forth along the length direction of the display screen, so that the cleaning cotton cleans the display screen.

[0015] Optionally, the cleaning cotton is connected to the moving rod through a mounting plate. A connecting groove is provided on one side of the moving rod close to the display screen. The cleaning cotton is connected to the side of the mounting plate close to the display screen. A connecting block is connected to the side of the mounting plate away from the cleaning cotton. The connecting block is embedded in the connecting groove. The connecting block is connected with a locking assembly, and the locking assembly is used to lock the connecting block in the connecting groove.

[0016] By adopting the above technical solution, when the cleaning cotton is used for a long time, impurities on the surface of the display screen are easily accumulated in the cleaning cotton, thus affecting the cleaning effect of the cleaning cotton on the display screen. The mounting plate is detachably connected to the moving rod, so as to facilitate the cleaning or replacement of the cleaning cotton and improve the cleaning effect of the cleaning cotton.

[0017] Optionally, an installation groove is provided on one side of the connecting block along the length direction of the display screen. The length direction of the installation groove is the same as the length direction of the display screen. The locking assembly includes a spring and a locking block. The length direction of the spring is the same as the length direction of the display screen. One end of the spring is connected to the inner wall of one end of the installation groove, and the other end of the spring is connected to the locking block. The locking block is slidably connected to the installation groove along the length direction of the installation groove. A locking hole is provided on the inner wall of one side of the connecting groove along the length direction of the display screen. The locking block passes through and is slidably connected to the locking hole along the length direction of the display screen.

[0018] By adopting the above technical solution, when installing the mounting plate, the connecting block is embedded into the connecting groove, and the inner wall of the connecting groove pushes the locking block to move along the length direction of the display screen and embed into the mounting groove, so that the spring is compressed and deformed. When the locking block approaches the locking hole, the spring resumes its shape and pushes the locking block to slide and connect along the length direction of the mounting groove, and the locking block passes through the locking hole, thereby stably connecting the connecting hole to the connecting groove, and stably connecting the locking block to the locking hole, so that the mounting plate is stably connected to the moving rod.

[0019] Optionally, guiding surfaces are provided on both sides of the locking block along the thickness direction of the display screen, and the guiding surfaces facilitate the locking block to pass through or move away from the locking hole.

[0020] By adopting the above technical solution, the guiding surfaces are added, so that it is more convenient for the locking block to pass through or move away from the locking hole.

[0021] Optionally, a flexible layer is connected to the side of the clamping plate close to the clamping cavity, and the flexible layer is used to contact the display screen.

[0022] By adopting the above technical solution, the flexible layer is added. When the clamping plate clamps the display screen, the flexible layer contacts the display screen, thereby stably connecting the clamping plate to the display screen.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When cleaning the display screen, place the display screen in the clamping cavity. The moving assembly drives the two clamping plates to slide and connect to the frame along the length direction of the display screen, so that the two clamping plates clamp both sides of the display screen. Adjust the length of the cleaning member according to the width of the display screen, so as to facilitate the cleaning member to clean display screens of different widths, and the distance between the clamping plates is adjustable, so as to facilitate the cleaning device to adapt to display screens of different sizes;

[0025] 2. The first motor drives the gear to rotate, and then drives the two racks to move along the length direction of the display screen. The moving rod moves with the rack, so that the overlapping part of the two moving rods increases or decreases, thereby changing the length of the cleaning member;

[0026] 3. When installing the mounting plate, the connecting block is embedded into the connecting groove, and the inner wall of the connecting groove pushes the locking block to move along the length direction of the display screen and embed into the mounting groove, so that the spring is compressed and deformed. When the locking block approaches the locking hole, the spring resumes its shape and pushes the locking block to slide and connect along the length direction of the mounting groove, and the locking block passes through the locking hole, thereby stably connecting the connecting hole to the connecting groove, and stably connecting the locking block to the locking hole, so that the mounting plate is stably connected to the moving rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the three-dimensional structure diagram of this embodiment.

[0028] Figure 2 is the front view of this embodiment.

[0029] Figure 3 is this embodiment Figure 2 the sectional view taken along the line A-A in the embodiment.

[0030] Figure 4 is this embodiment Figure 2 the sectional view taken along the line B-B in the embodiment.

[0031] Explanation of reference numerals: 100, frame; 110, sliding groove; 120, moving groove; 130, slider; 131, limiting groove; 132, installation cavity; 200, clamping plate; 210, clamping cavity; 220, flexible layer; 300, cleaning member; 310, moving rod; 311, limiting block; 320, mounting plate; 321, connecting block; 322, mounting groove; 330, cleaning cotton; 340, connecting groove; 350, locking hole; 400, moving assembly; 410, moving block; 420, first cylinder; 500, sliding assembly; 510, lead screw; 520, second motor; 600, driving assembly; 610, first motor; 620, gear; 630, rack; 700, locking assembly; 710, spring; 720, locking block. Detailed implementation manners

[0032] The following further elaborates on this application in conjunction with the attached Figures 1-4 drawings.

[0033] The embodiment of this application discloses a cleaning device for a display screen. Refer to Figure 1 and Figure 2 , the cleaning device for the display screen includes a frame 100, clamping plates 200, and a cleaning member 300. There are two clamping plates 200, and the length direction of the clamping plates 200 is the same as the width direction of the display screen. The two clamping plates 200 are arranged at intervals along the length direction of the display screen, and the two clamping plates 200 are provided with clamping cavities 210 at intervals. The frame 100 is connected with a moving assembly 400, and the moving assembly 400 is used to drive the two clamping plates 200 to be slidably connected to the frame 100 along the length direction of the display screen and drive the two clamping plates 200 to approach or separate from each other. The length direction of the cleaning member 300 is the same as the width direction of the display screen, and the cleaning member 300 is used to clean the display screen. The frame 100 is connected with a sliding assembly 500, and the sliding assembly 500 is used to drive the cleaning member 300 to move back and forth along the length direction of the display screen, and the cleaning range of the cleaning member 300 is adjustable. The distance between the clamping plates 200 is adjustable, and the cleaning range of the cleaning member 300 is adjustable, so as to facilitate the cleaning device to adapt to the cleaning of display screens of different sizes.

[0034] Refer to Figure 1, two sliding grooves 110 are provided in the reference frame 100. The length direction of the sliding grooves 110 is the same as the length direction of the display screen. The two sliding grooves 110 are spaced apart along the length direction of the display screen. There are two moving components 400, and one moving component 400 corresponds to one sliding groove 110. The moving component 400 includes a moving block 410 and a first cylinder 420. The moving block 410 is embedded in the sliding groove 110, and the moving block 410 is slidably connected to the sliding groove 110 along the length direction of the display screen. The length direction of the moving block 410 is the same as the thickness direction of the display screen. One end of the moving block 410 along its length direction is embedded in the sliding groove 110, and the other end of the moving block 410 is connected to the clamping plate 200. The clamping plates 200 correspond to the moving blocks 410 one by one. The clamping plate 200 is connected to the side of the moving block 410 close to the other moving block 410. The first cylinder 420 is connected to one side of the frame 100 along the length direction of the display screen, and the piston rod of the first cylinder 420 passes through the inner wall of the sliding groove 110 along the length direction of the display screen. The piston rod of the first cylinder 420 is connected to the moving block 410. A flexible layer 220 is connected to the side of the clamping plate 200 close to the clamping cavity 210. The flexible layer 220 is used to contact the display screen, and the flexible layer 220 is made of rubber material.

[0035] When the clamping plate 200 clamps the display screen, the first cylinder 420 drives the moving block 410 to be slidably connected in the sliding groove 110 along the length direction of the display screen, thereby driving the clamping plates 200 to approach each other, so that the flexible layer 220 contacts the display screen, thereby clamping the display screen.

[0036] Referring to Figure 1 and Figure 2 , a moving groove 120 is provided in the frame 100. The length direction of the moving groove 120 is the same as the length direction of the display screen. The moving groove 120 is provided directly above the sliding groove 110, and a slider 130 is provided in the moving groove 120. The length direction of the slider 130 is the same as the thickness direction of the display screen. The slider 130 is slidably connected to the moving groove 120 along the length direction of the display screen. One end of the slider 130 along its length direction is embedded in the moving groove 120, and the cleaning member 300 is connected to the other end of the slider 130. The sliding component 500 includes a lead screw 510 and a second motor 520. The length direction of the lead screw 510 is the same as the length direction of the display screen. The two ends of the lead screw 510 along its length direction are respectively rotatably connected in the moving groove 120. The second motor 520 is connected to the frame 100, and the second motor 520 is provided on one side of the moving groove 120 along the length direction of the moving groove 120. The output shaft of the second motor 520 passes through one end inner wall of the moving groove 120 along the length direction of the display screen, and the output shaft of the second motor 520 is connected to one end of the lead screw 510. The end of the slider 130 away from the cleaning member 300 is threadedly sleeved on the lead screw 510.

[0037] The second motor 520 drives the lead screw 510 to rotate, thereby driving the slider 130 to slide along the length direction of the display screen within the moving groove 120, thereby driving the cleaning member 300 to move back and forth along the length direction of the display screen, so that the cleaning member 300 cleans the display screen.

[0038] Referring to Figure 1 and Figure 3 , the cleaning member 300 includes two moving rods 310. The length direction of the moving rod 310 is consistent with the width direction of the display screen. The two moving rods 310 are spaced apart along the length direction of the display screen, and the two moving rods 310 are arranged in parallel, and there is an overlapping part between the two moving rods 310. The slider 130 is connected with a driving component 600 for driving the moving rod 310 to move along the length direction of the moving rod 310. The driving component 600 drives the moving rod 310 to move and drives the overlapping part of the two moving rods 310 to increase or decrease. The moving rod 310 is connected to one end of the slider 130 close to the display screen. A limiting block 311 is connected to the side of the moving rod 310 close to the slider 130. The length direction of the limiting block 311 is consistent with the length direction of the moving rod 310. A limiting groove 131 for the limiting block 311 to be embedded is formed on the side of the slider 130 close to the moving rod 310. The length direction of the limiting groove 131 is consistent with the length direction of the moving rod 310. The limiting block 311 passes through and is slidably connected within the limiting groove 131 along its length direction. The limiting block 311 is arranged as a dovetail block, and the limiting groove 131 is a dovetail groove.

[0039] Referring to Figure 1 and Figure 4 , a mounting plate 320 is detachably connected to the side of the moving rod 310 away from the slider 130. The length direction of the mounting plate 320 is consistent with the length direction of the moving rod 310. A cleaning cotton 330 is connected to the side of the mounting plate 320 close to the display screen. The length direction of the cleaning cotton 330 is consistent with the length direction of the moving rod 310. A connecting block 321 is connected to the side of the mounting plate 320 away from the cleaning cotton 330. A connecting groove 340 for the connecting block 321 to be embedded is formed on the side of the moving rod 310 close to the display screen. The depth direction of the connecting groove 340 is consistent with the thickness direction of the display screen. The connecting block 321 is slidably connected within the connecting groove 340 along the thickness direction of the display screen.

[0040] Referring to Figure 1 and Figure 4, a locking component 700 is connected to the connecting block 321 for locking the connecting block 321 in the connecting slot 340. An installation groove 322 is formed in the connecting block 321 along the length direction of the display screen and on the side away from the rack 630, and the length direction of the installation groove 322 is the same as the length direction of the display screen. The locking component 700 includes a spring 710 and a locking block 720 connected in the installation groove 322. The length direction of the spring 710 is the same as the length direction of the display screen. One end of the spring 710 is connected to the inner wall of one end of the installation groove 322 along its length direction, and the other end of the spring 710 is connected to one end of the locking block 720. The locking block 720 is slidably connected in the installation groove 322 along the length direction of the installation groove 322. A locking hole 350 is formed in the inner wall of the connecting slot 340 along the length direction of the display screen and on the side away from the rack 630. The depth direction of the locking hole 350 is the same as the length direction of the display screen, and the locking block 720 passes through and is slidably connected in the locking hole 350 along the length direction of the display screen. Guide surfaces are provided on both sides of the locking block 720 along the thickness direction of the display screen. The guide surfaces are inclined and are provided at the end of the locking block 720 away from the spring 710. The guide surfaces facilitate the locking block 720 to pass through or move away from the locking hole 350.

[0041] When installing the mounting plate 320, the connecting block 321 is embedded in the connecting slot 340, and the locking block 720 passes through the locking hole 350, so that the connecting block 321 is stably connected in the connecting slot 340, and the mounting plate 320 is stably connected to the moving rod 310.

[0042] Refer to Figure 1 and Figure 3 , the driving component 600 includes a first motor 610, a gear 620, and a rack 630. An installation cavity 132 is formed in the slider 130, and the installation cavity 132 is provided at the end of the slider 130 away from the lead screw 510. The first motor 610 is arranged in the installation cavity 132. The output shaft of the first motor 610 passes through the inner wall of the installation cavity 132 along the length direction of the slider 130, and the output shaft of the first motor 610 is connected to the gear 620. The central axis of the gear 620 is collinear with the central axis of the output shaft of the first motor 610. The gear 620 is arranged between the two moving rods 310. There are two racks 630, and the two racks 630 are arranged on both sides of the gear 620 along the length direction of the display screen. The racks 630 correspond to the moving rods 310 one by one. The length direction of the racks 630 is the same as the width direction of the display screen. The racks 630 are connected to the side of the moving rods 310 close to the gear 620. Both of the two racks 630 are meshed with the gear 620. The first motor 610 drives the gear 620 to rotate, thereby driving the two racks 630 to move along the width direction of the display screen. The racks 630 drive the moving rods 310 to move along the width direction of the display screen, thereby changing the length of the overlapping part of the two moving rods 310, and further changing the cleaning range of the cleaning component 300, so as to facilitate adapting to the cleaning of display screens of different sizes.

[0043] The implementation principle of a cleaning device for a display screen in an embodiment of the present application is as follows: When cleaning the display screen, the display screen is placed in the clamping cavity 210. The first cylinder 420 drives the moving block 410 to slide in the sliding groove 110 along the length direction of the display screen, thereby driving the clamping plates 200 to approach each other, so that the clamping plates 200 clamp the display screen, and the cleaning range of the cleaning member 300 is adjusted according to the width of the display screen. The first motor 610 drives the gear 620 to rotate, and then drives the rack 630 to move along the width direction of the display screen. The rack 630 drives the moving rod 310 to move, so that the two moving rods 310 approach or move away from each other, thereby changing the cleaning range of the cleaning member 300, so that the cleaning device can adapt to display screens of different sizes and improve the range of display screen sizes applicable to the cleaning device.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A cleaning device for a display screen, comprising a frame (100), a clamping plate (200), and a cleaning member (300), wherein two clamping plates (200) are arranged at intervals along the length direction of the display screen, and a clamping cavity (210) for placing the display screen is provided at intervals between the two clamping plates (200), characterized in that: The frame (100) is connected to a slider (130), the cleaning piece (300) is connected to the slider (130), the frame (100) is connected to a sliding assembly (500), the sliding assembly (500) is used to drive the slider (130) to move back and forth along the length direction of the display screen, the frame (100) is connected to a moving assembly (400), the moving assembly (400) is used to drive two clamping plates (200) to slide along the length direction of the display screen and connected to the frame (100) and drive the two clamping plates (200) to move closer to or farther from each other, the length direction of the cleaning piece (300) is consistent with the width direction of the display screen, and the length direction of the cleaning piece (300) is adjustable.

2. The display screen cleaning device according to claim 1, characterized in that: The cleaning member (300) comprises two moving rods (310), the length direction of the moving rods (310) is consistent with the width direction of the display screen, the two moving rods (310) are spaced apart along the length direction of the display screen, and the two moving rods (310) are arranged in parallel, and there is an overlapping portion between the two moving rods (310), the moving rods (310) are connected to a slider (130), the slider (130) is connected to a driving assembly (600), the driving assembly (600) is used to drive the two moving rods (310) to move along the width direction of the display screen and drive the length of the overlapping portion of the two moving rods (310) to increase or decrease, and a cleaning cotton (330) is connected to a side of the moving rod (310) away from the slider (130), and the length direction of the cleaning cotton (330) is consistent with the length direction of the moving rod (310).

3. The display screen cleaning device according to claim 2, characterized in that: The driving assembly (600) comprises a gear (620), a first motor (610), and two racks (630); the gear (620) is rotatably connected to a slider (130) close to a display screen; a mounting cavity (132) is provided in the slider (130); the first motor (610) is disposed in the mounting cavity (132), and an output shaft of the first motor (610) is connected to the gear (620); the two racks (630) are disposed on both sides of the gear (620) along the length direction of the display screen; the length direction of the racks (630) is consistent with the length direction of the clamping plate (200); the racks (630) correspond to the moving rod (310) one by one; the racks (630) are connected to one side of the moving rod (310), and the two racks (630) are both meshed with the gear (620).

4. The display screen cleaning device according to claim 1, characterized in that: The frame (100) is provided with a moving groove (120), the length direction of the moving groove (120) is consistent with the length direction of the display screen, the length direction of the slider (130) is consistent with the thickness direction of the display screen, one end of the slider (130) along its length direction is connected to the moving rod (310), the other end of the slider (130) is embedded in the moving groove (120), the slider (130) is slidably connected to the moving groove (120) along the length direction of the display screen, the sliding assembly (500) comprises a screw rod (510) and a second motor (520), the length direction of the screw rod (510) is consistent with the length direction of the display screen, the screw rod (510) is rotatably connected to the moving groove (120), the second motor (520) is connected to the frame (100), and the output shaft of the second motor (520) is connected to one end of the screw rod (510), and one end of the slider (130) away from the moving rod (310) is threadedly sleeved on the screw rod (510).

5. The display screen cleaning device according to claim 2, characterized in that: The cleaning cotton (330) is connected to the moving rod (310) via the mounting plate (320); a connecting groove (340) is provided on a side of the moving rod (310) close to the display screen; the cleaning cotton (330) is connected to a side of the mounting plate (320) close to the display screen; a connecting block (321) is connected to a side of the mounting plate (320) away from the cleaning cotton (330); the connecting block (321) is embedded in the connecting groove (340); the connecting block (321) is connected to a locking assembly (700); and the locking assembly (700) is used to lock the connecting block (321) in the connecting groove (340).

6. The display screen cleaning device according to claim 5, characterized in that: The connection block (321) is provided with a mounting groove (322) on one side along the length direction of the display screen, and the length direction of the mounting groove (322) is consistent with the length direction of the display screen. The locking assembly (700) comprises a spring (710) and a locking block (720), and the length direction of the spring (710) is consistent with the length direction of the display screen. One end of the spring (710) is connected to the inner wall of one end of the mounting groove (322), and the other end of the spring (710) is connected to the locking block (720). The locking block (720) is slidably connected to the mounting groove (322) along the length direction of the mounting groove (322). The connection groove (340) is provided with a locking hole (350) on the inner wall of one side along the length direction of the display screen, and the locking block (720) passes through the locking hole (350) along the length direction of the display screen and is slidably connected to the locking hole (350).

7. The display screen cleaning device according to claim 6, characterized in that: The locking block (720) is provided with guide surfaces on both sides along the thickness direction of the display screen, and the guide surfaces facilitate the locking block (720) to pass through or move away from the locking hole (350).

8. The display screen cleaning device according to claim 1, characterized in that: A flexible layer (220) is connected to one side of the clamping plate (200) close to the clamping cavity (210), and the flexible layer (220) is used to contact the display screen.

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