Display screen lifting mechanism and display screen cable routing structure

Abstract

This application discloses a display screen lifting mechanism and display screen cable routing structure, relating to the technical field of lowering equipment. The mechanism comprises a lifting frame, a cable storage housing, and a mounting plate rotatably mounted on the lifting frame. The lifting frame comprises a support frame and a lifting platform slidably mounted on the support frame in a vertical direction. The mounting plate is rotatably connected to the lifting platform. The support frame is provided with a first drive assembly for driving the lifting platform to slide. A cable storage member is provided within the cable storage housing, and the cable storage member is used to drive the cables to move into the cable storage housing. This application can reduce the interference of overly long cables on the lifting and lowering action of the display screen.

Description

Technical Field

[0001] The present application relates to the technical field of lifting equipment, and in particular to a display screen lifting mechanism and a display screen cable routing structure. Background Art

[0002] With the gradual development of electronic display devices, a large number of display devices have the function of human-computer interaction, which facilitates people's daily life. In order to facilitate human-computer interaction with the display screen in different usage scenarios, the display screen is usually installed on a lifting bracket to achieve the lifting function of the display screen.

[0003] Because the display needs to be raised and lowered, the cables connecting it are usually long enough to keep them connected during the process. However, if cables are haphazardly routed outside the lifting bracket, the cables can become tangled during the lifting process, interfering with the movement. Summary of the Invention

[0004] In order to reduce the interference of overly long cables on the lifting and lowering of a display screen, the present application provides a display screen lifting mechanism and a display screen cable routing structure.

[0005] On the one hand, the present application provides a display screen lifting mechanism, which adopts the following technical solutions:

[0006] A display screen lifting mechanism includes a lifting frame, a cable storage housing, and a mounting plate rotatably arranged on the lifting frame.

[0007] The lifting frame includes a support frame and a lifting platform slidably arranged on the support frame in a vertical direction, the mounting plate is rotatably connected to the lifting platform, and the support frame is provided with a first driving component for driving the lifting platform to slide;

[0008] A cable storage member is provided in the cable storage housing, and the cable storage member is used to drive the cable to move into the cable storage housing. The cable storage housing is provided with a cable inlet and a cable outlet for the cables to pass through.

[0009] By adopting the above technical solution, the mounting plate provided on the lifting frame is used to install the display screen, and the mounting plate is rotatably connected to the lifting frame, thereby realizing a rotatable connection between the display screen and the lifting frame, making it easier for people to rotate the display screen to a suitable viewing angle; the lifting platform slides vertically on the support frame under the drive of the first drive component, thereby driving the mounting plate located on the lifting platform to move up and down in the vertical direction; a cable storage shell is provided for storing excess cables, and when the lifting platform is raised and lowered, the cable storage part cooperates with the lifting of the lifting platform to retract and release the cables, thereby adjusting the length of the cables located outside the cable lifting shell, so that the cables can be normally connected to the display screen during the lifting of the lifting platform. The cable storage shell realizes the storage of excess cables, reducing the influence of the cables on the lifting action of the lifting platform.

[0010] Optionally, the first driving assembly includes a driving screw rotatably disposed on the support frame and a sliding sleeve threadedly connected to the driving screw;

[0011] The lifting platform is fixedly connected to the sliding sleeve, and the support frame is provided with a guide groove for the lifting platform to slide.

[0012] By adopting the above technical solution, when the driving screw rotates, the sliding sleeve moves along the length direction of the driving screw under the action of the driving screw, and the lifting platform is fixedly connected to the sliding sleeve. Driven by the sliding sleeve, the lifting platform can slide along the guide groove, thereby realizing lifting.

[0013] Optionally, two driving screw rods are arranged in parallel, and the sliding sleeves are arranged in a one-to-one correspondence with the driving screw rods; the lifting platform includes a lifting plate slidably arranged in the guide groove and a supporting frame arranged on the lifting plate, and the sliding sleeves are all passed through and fixed on the lifting plate.

[0014] By adopting the above technical solution, two driving screw rods are arranged in parallel, and the sliding sleeve is passed through and fixed on the lifting plate, thereby driving the lifting plate to move along the guide groove, thereby improving the stability of the lifting platform during lifting.

[0015] Optionally, a first bevel gear is coaxially fixed to one end of the driving screw, a second bevel gear is rotatably provided on the support frame, and the first bevel gear is meshed with the second bevel gear, and a first driving source for driving the second bevel gear to rotate is provided on the support frame.

[0016] By adopting the above technical solution, the first driving source drives the second bevel to rotate, and the second bevel gear engages with the first bevel gear and rotates together with the second bevel gear to realize indirect driving of the driving screw by the first driving source, and drives the lifting platform to rise and fall by controlling the rotation of the driving screw.

[0017] Optionally, a cable winding roller is rotatably arranged in the cable storage shell, and a fixing part for fixing the cable is provided on the winding roller; a driving part for driving the cable winding roller to rotate is provided on the lifting platform, and the lifting platform can drive the cable winding roller to rotate when sliding.

[0018] By adopting the above technical solution, the cable reel is rotatably mounted within the cable storage housing. During use, the central section of the cable is fixed to the reel via a fixing member. When the lift platform descends, the driver drives the cable reel to rotate, winding the cable onto the reel. When the lift platform ascends, the driver drives the cable reel to rotate, releasing the cable. The reel ensures that the cables outside the cable storage box are kept at the appropriate length as the lift platform moves, reducing the possibility of cluttered cable placement and minimizing the impact of the cables on the normal operation of the lift platform.

[0019] Optionally, the cable storage member includes a cable retracting rod slidably disposed in the cable storage housing, and the cable retracting rod is used to abut against the cable.

[0020] By adopting the above technical solution, the cable retracting rod is slidably arranged in the cable storage shell. When the cable retracting rod slides, it contacts the cable, driving the cable to move, so that the angle between the cable segments on both sides of the cable retracting rod becomes smaller, and the cable is retracted into the cable storage shell; when the cable storage rod slides, the angle between the cable segments on both sides of the cable retracting rod becomes larger, and the cable can be pulled out of the cable storage shell when the lifting platform rises.

[0021] Optionally, a sliding rod is slidably provided in the cable storage shell, and the cable retracting rod is sleeved on the sliding rod and rotatably connected to the sliding rod, and a second driving source for driving the sliding rod to slide is provided on the cable storage shell.

[0022] By adopting the above technical solution, the cable retracting rod is sleeved on the sliding rod, and the sliding rod slides in the cable storage shell, thereby realizing a sliding connection between the cable retracting rod and the cable storage shell; the cable retracting rod is rotatably connected to the sliding rod, and when the cable slides on the cable retracting rod, the friction between the cable and the cable retracting rod can be reduced, thereby reducing the wear of the cable during the retraction process, thereby extending the service life of the cable.

[0023] Optionally, a guide screw is rotatably provided on the cable storage housing, and the axis of the guide screw is arranged perpendicular to the axis of the sliding rod; a transmission block is threadedly connected to the guide screw, and the transmission block is fixedly connected to the sliding rod, and the second driving source is used to drive the guide screw to rotate.

[0024] By adopting the above technical solution, the second driving source drives the guide screw to rotate, and the transmission block engages with the guide screw. When the guide screw rotates, the transmission block moves along the length direction of the guide screw; the transmission block is connected to the slide rod, so that the slide rod can be driven to slide, so that the cable retracting rod can realize the cable retracting function.

[0025] Optionally, a clamping assembly for clamping the cable is included, and the clamping assembly includes a first clamping member fixed on the lifting platform and a second clamping member fixed on the support frame.

[0026] By adopting the above technical solution, the first clamping member is located on the lifting platform, and clamps and fixes the cable segment close to one end of the lifting platform; the second clamping member is located on the support frame, and clamps and fixes the cable segment close to the bottom end of the support frame; when the cable segment located in the middle of the cable is retracted and moved in the cable storage shell, the cable segment located at the end of the cable is not easy to move with the retracted cable segment, thereby reducing the probability of the cable end being damaged by relative sliding with external objects.

[0027] On the one hand, the present application provides a display screen lifting mechanism, which adopts the following technical solutions:

[0028] It comprises a cable, which is arranged on the above-mentioned display screen lifting mechanism; the cable comprises a straight cable segment and a spiral cable segment which are interconnected, and the spiral cable segment is used to connect with the display screen.

[0029] By adopting the above technical solution, the cables are laid out on the display screen lifting mechanism, which can realize the storage of the excess length of the cables and reduce the interference of the cables on the lifting action of the display screen lifting mechanism; the cables include a straight cable segment and a spiral cable segment. Since the mounting plate is rotatably connected to the lifting platform, one end of the spiral cable segment is used to connect with the display screen during use. When the display screen is mounted on the mounting plate and rotated, the spiral cable segment can be stretched within a certain range, thereby reducing the possibility of friction between the cable and other objects caused by the rotation of the display screen, and at the same time reducing the influence of the cable on the rotation movement of the display screen, so that the rotation action of the display screen can be more flexible.

[0030] In summary, this application has at least one of the following beneficial effects:

[0031] 1. This application is provided with a cable storage housing, in which a cable storage member is provided. The cable storage member is used to retract and release the cables in conjunction with the lifting of the lifting platform, thereby adjusting the length of the cables outside the cable lifting housing. This allows the cables to be properly connected to the display screen during the lifting of the lifting platform, thus storing excess cables and reducing the impact of the cables on the lifting of the lifting platform.

[0032] 2. This application realizes cable retraction and release by sliding a cable retraction rod within the cable storage housing. The side wall of the cable retraction rod only needs to abut against a portion of the cable segment, eliminating the need to wrap the cable around the cable retraction rod, thereby reducing the possibility of cable damage due to winding and bending.

[0033] 3. The present application is provided with a clamping assembly, which clamps and fixes the end of the cable close to the lifting platform and the end of the cable close to the bottom of the support frame respectively. Since the two ends of the cable are respectively used to connect the display screen and other devices, the setting of the clamping part reduces the possibility of the cable segments at both ends of the cable moving with the movement of the middle cable, thereby improving the connection stability between the cable end and the display screen and other devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 2 is a front view structural diagram of the display screen lifting mechanism of Example 1 of the present application;

[0035] Figure 2 Schematic diagram of the overall structure of the display screen lifting mechanism of Example 1 of the present application;

[0036] Figure 3 2 is a schematic cross-sectional view of the cable storage housing according to embodiment 1 of the present application;

[0037] Figure 4 2 is a schematic diagram of the overall structure of the display screen lifting mechanism of Example 2 of the present application;

[0038] Figure 5 This is a schematic diagram of the cross-sectional structure of the cable storage shell of Example 2 of the present application.

[0039] Explanation of reference numerals: 1. lifting frame; 11. supporting frame; 111. guide groove; 12. lifting platform; 121. lifting plate; 122. carrying frame; 123. driving member; 13. roller; 14. movable seat; 141. positioning column; 142. rotating frame; 143. connecting rod; 144. connecting block; 2. cable storage housing; 21. cable inlet; 22. cable outlet; 23. sliding rod; 24. reversing roller; 25. slider; 26. slide groove; 27. slide hole; 3. mounting plate; 31. mounting hole; 4. first driving assembly; 41. driving screw ; 42. Sliding sleeve; 43. First bevel gear; 44. Second bevel gear; 45. First driving source; 5. Cable winding roller; 51. Fixing member; 6. Cable taking-up rod; 61. Isolation ring; 7. Second driving assembly; 71. Second driving source; 72. Guide wire rod; 73. Transmission block; 8. Clamping assembly; 81. First clamping member; 811. First clamping part; 812. Second clamping part; 813. Elastic pad; 82. Second clamping member; 83. Locking member; 9. Cable; 91. Straight cable segment; 92. Spiral cable segment; 10. Display screen. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-5 This application is described in further detail.

[0041] Example 1:

[0042] The embodiment of the present application discloses a display screen lifting mechanism, referring to Figure 1 and Figure 2 The display screen lifting mechanism includes a lifting frame 1 and a cable storage shell 2 arranged on one side of the lifting frame 1. The lifting frame 1 includes a support frame 11 and a lifting platform 12 slidably connected to the support frame 11. The two opposite side walls of the lifting frame are provided with guide grooves 111 in the vertical direction. The lifting platform 12 includes a lifting plate 121 and a supporting frame 122 fixed on the lifting plate 121. The two ends of the lifting plate 121 are respectively slidably set in the two guide grooves 111, and the supporting frame 122 is sleeved outside the support frame 11.

[0043] Reference Figure 1 and Figure 2 A first drive assembly 4 is provided on the support frame 11. The first drive assembly 4 includes a drive screw 41 rotatably connected to the support frame 11 and a sliding sleeve 42 threadedly connected to the drive screw 41. Two drive screws 41 are specifically provided and the two drive screws 41 are arranged in parallel. The two drive screws 41 are threadedly connected with a sliding sleeve 42. The sliding sleeve 42 passes through the lifting plate 121 and is welded and fixed to the lifting plate 121. A first bevel gear 43 is coaxially fixed to one end of the drive screw 41, and a roller 13 is rotatably connected to one end of the support frame 11 close to the first bevel gear 43; two second bevel gears 44 are coaxially fixed to the roller 13, and the two second bevel gears 44 are respectively engaged with the two first bevel gears 43. One end of the roller 13 passes through the side wall of the support frame 11 and is connected to a first drive source 45. In this embodiment, the first drive source 45 is specifically configured as a motor. The first drive source 45 drives the roller 13 to rotate, causing the second bevel gear 44 fixed to the roller 13 to rotate. The first bevel gear 43 meshes with the second bevel gear 44, causing the two drive screws 41 to rotate simultaneously, causing the sliding sleeve 42 threadedly connected to the drive screw 41 to rise and fall in the vertical direction, thereby achieving the lifting function of the lifting platform 12. In other embodiments, only one drive screw 41 can be provided, and the rotation axis of the drive screw 41 can be set at the center of the lifting plate 121 to drive the lifting platform 12 to slide.

[0044] Reference Figure 2The top of the carrier 122 is rotatably connected to the mounting plate 3. The mounting plate 3 has a plurality of mounting holes 31, specifically four in this embodiment. Screws can be passed through the mounting holes 31 to secure the display screen 10 to the mounting plate 3. When the carrier 122 is raised and lowered on the support frame 11 along with the lifting plate 121, the display screen 10 mounted on the mounting plate 3 can also be raised and lowered together.

[0045] Reference Figure 1 and Figure 2 A movable seat 14 is fixed to the top of the carrier 122. The movable seat 14 includes a positioning column 141 fixed to the top of the carrier 122 and a rotating frame 142. One end of the rotating frame 142 is sleeved on the positioning column 141 and is rotatably connected to the positioning column 141. A connecting rod 143 is welded to the rotating frame 142. A connecting block 144 is sleeved on the connecting rod 143. The end of the connecting block 144 away from the connecting rod 143 is fixedly connected to the mounting plate 3. The connecting block 144 is rotatably connected to the connecting rod 143, and the rotation axis of the connecting block 144 is arranged perpendicular to the rotation axis of the rotating frame 142. There is a certain amount of friction between the contact surface of the rotating frame 142 and the connecting rod 143, and there is also a certain amount of friction between the contact surface of the connecting block 144 and the connecting rod 143. People can rotate the display screen 10 installed on the mounting plate 3 to a suitable angle according to their own needs, thereby improving the convenience of using the mounting plate 3.

[0046] Reference Figure 2 and Figure 3 , the cable storage shell 2 is fixed to one side of the support frame 11. In the present embodiment, the cable storage shell 2 is specifically configured as a rectangular box. A cable inlet 21 is provided at the end of the cable 9 storage box away from the mounting plate 3, and a cable outlet 22 is provided at the end away from the mounting plate 3. A cable storage part is provided in the cable 9 storage box. In the present embodiment, the cable storage part is configured as a cable winding roller 5 rotatably connected to the inner wall of the cable storage shell 2. Both ends of the cable winding roller 5 pass through the inner wall of the storage shell and are coaxially fixed with gears. A driving member 123 is provided on the support frame 11. In the present embodiment, the driving member 123 is specifically configured as a rack; the rack is fixed to one side of the support frame 11 and meshes with the gear. When the lifting platform 12 moves relative to the support frame 11 under the action of the first driving component 4, the gear meshes with the rack, causing the cable winding roller 5 to rotate to retract and release the cable 9.

[0047] The cable reel 5 is connected to a fixing member 51. In this embodiment, the fixing member 51 is specifically configured as an annular elastic buckle with an opening. During use, the middle section of the cable 9 is fixed to the cable reel 5 via the fixing member 51. The cable reel 5 is then rotated to wind the excess cable 9 around the cable reel 5, completing the storage of the excess cable 9.

[0048] Reference Figure 2The lifting frame 1 is also provided with a clamping assembly 8, which includes a first clamping member 81 provided on the carrier 122 and a second clamping member 82 provided on one side of the support frame 11, and the first clamping member 81 and the second clamping member 82 are respectively located on both sides of the cable storage housing 2. The first clamping member 81 includes a first clamping portion 811 fixed on the carrier 122 and a second clamping portion 812 slidably provided on the carrier 122, and elastic pads 813 are fixed on the side walls opposite to the first clamping portion 811 and the second clamping portion 812. A locking member 83 for locking the second clamping portion 812 is provided at one end of the first clamping member 81 away from the carrier 122. In this embodiment, the locking member 83 is specifically configured as a locking bolt, and the locking bolt groove passes through the second clamping portion 812 and is threadedly connected to the first clamping portion 811. The structures of the first clamping member 81 and the second clamping member 82 are the same, and will not be elaborated here. In other implementations of this embodiment, the first clamping member 81 and the second clamping member 82 may also be configured as spring clamps.

[0049] Reference Figure 2 , the first clamping member 81 and the second clamping member 82 can be set as one, or can be set in a one-to-one correspondence according to the number of cables 9 laid. In this embodiment, two cables 9 are provided, and one first clamping member 81 is specifically provided, and two second clamping members 82 are specifically provided. During use, one end of the cable 9 passing through the outlet 22 is clamped on the first clamping member 81, and one end of the cable 9 passing through the inlet 21 is clamped on the second clamping member 82. Since the two ends of the cable 9 need to be connected to the display screen 10 and other devices respectively, the cable 9 section near the end of the cable 9 is clamped and fixed, so that when the cable 9 section located in the middle of the cable 9 is stored and released in the cable storage housing 2, the two ends of the cable 9 are not easy to move with the movement of the cable 9 section located in the middle, thereby maintaining a stable connection between the cable 9 and the display screen 10 and other devices.

[0050] The implementation principle of a display screen lifting mechanism in an embodiment of the present application is as follows: start the first driving source 45 to drive the lifting platform 12 to slide up to the end of the stroke; pass one end of the cable 9 through the cable inlet 21 into the cable outlet 22, and adjust the length of the cable 9 on both sides of the cable storage shell 2 so that the cable 9 is reasonably distributed on both sides of the storage shell. The cable 9 close to the cable winding roller 5 is fixed to the cable winding roller 5 through the fixing member 51, and then the first driving source 45 is started. While the lifting platform 12 is descending, the cable winding roller 5 rewinds the cable 9. After the lifting platform 12 slides down to the end of the stroke, the end of the cable 9 close to the first clamping member 81 is placed between the first clamping part 811 and the second clamping part 812 of the first clamping member 81, so that the first clamping part 811 and the second clamping part 812 clamp the cable 9, and then the locking bolt is passed through the second clamping part 812 and threadedly connected to the first clamping part 811, thereby achieving clamping and fixing of the end of the cable 9. Similarly, the end of the cable 9 near the second clamping member 82 is clamped and fixed with the second clamping member 82. The display screen 10 is mounted on the mounting plate 3 using screws. The end of the cable 9 near the display screen 10 is connected to the display screen 10, and the other end is connected to other devices.

[0051] Example 2:

[0052] Reference Figure 4 and Figure 5 , the difference between the present application and Example 1 is that: in this embodiment, the cable storage part is specifically configured as a cable retracting rod 6. A sliding rod 23 is provided in the cable storage housing 2 for sliding along a direction perpendicular to the driving screw 41, and the cable retracting rod 6 is coaxially sleeved on the sliding rod 23 and rotatably connected to the sliding rod 23. In this embodiment, there are two cable retracting rods 6, the axes of the two cable retracting rods 6 are located at different vertical heights, and the sliding rods 23 are arranged in a one-to-one correspondence with the cable retracting rods 6. Two reversing rollers 24 are also provided in the cable storage housing 2, and both ends of the reversing roller 24 are rotatably connected to the inner side wall of the cable storage housing 2. One reversing roller 24 is arranged near the wire inlet 21, and the other reversing roller 24 is arranged near the wire outlet 22.

[0053] During use, the cable 9 passes through the cable inlet 21 around a reversing roller 24, then around two cable retracting rods 6 in sequence, and finally around another reversing roller 24 before passing through the cable outlet 22; the cable 9 abuts against both the reversing roller 24 and the cable retracting rod 6. After the two ends of the cable 9 outside the cable storage housing 2 are clamped and fixed by the first clamping member 81 and the second clamping member 82 respectively, when the two cable retracting rods 6 slide relative to each other, the cable 9 can slide out of the cable storage housing 2 when the lifting platform 12 moves upward, and when the two cable retracting rods 6 slide away from each other, the cable 9 can be stored in the cable storage box.

[0054] In other implementations of this embodiment, one or more cable retracting rods 6 may be provided according to the length of the cable 9 to be reeled.

[0055] Reference Figure 4 and Figure 5 , the cable 9 can be stored on a second drive assembly 7, the second drive assembly 7 is used to drive the two slide rods 23 to move relative to or away from each other. A slider 25 is fixed to one end of the slide rod 23 close to the support frame 11, and a transmission block 73 is fixed to the other end. A slide groove 26 is provided on the inner wall of the cable storage shell 2, and the slider 25 slides into the slide groove 26; a slide hole 27 is provided on the other inner wall of the cable storage shell 2, and one end of the transmission block 73 passes through the slide hole 27 and is slidably connected to the slide hole 27. The second drive assembly 7 includes a guide screw 72 rotatably arranged outside the cable storage shell 2 and a second drive source 71 connected to the guide screw 72, and the guide screw 72 is specifically configured as a bidirectional screw; the guide screw 72 passes through one end of the two transmission blocks 73 located outside the cable storage shell 2 in sequence, and the threaded sections of the guide screw 72 with different rotation directions are respectively threadedly connected to the two transmission blocks 73. While the first drive source 45 drives the lifting platform 12 to lift and lower. The second driving source 71 drives the guide screw 72 to rotate, causing the two transmission blocks 73 to move toward or away from each other, causing the two cable retracting and releasing rods 6 to slide relative to or away from each other, and retracting and releasing the cables 9 according to the lifting and lowering conditions of the lifting platform 12.

[0056] When multiple cables 9 need to be laid, in order to reduce the mutual interference between adjacent cables 9, an isolation ring 61 is coaxially fixed on the cable retracting rod 6 to isolate the adjacent cables 9. In this embodiment, there is specifically one isolation ring 61 on each cable retracting rod 6.

[0057] This embodiment of the present application discloses a display cable routing structure. Cable 9 is routed to a display lifting mechanism disclosed in Embodiment 1 or 2 above. Referring to FIG. 4 , cable 9 comprises a linear cable segment 91 and a spiral cable segment 92, which are interconnected. The linear cable segment 91 is located on the side of the first clamping member 81 near the second clamping member 82, while the spiral cable segment 92 is located on the side of the first clamping member 81 near the mounting plate 3. During use, the end of the spiral cable segment 92, distal from the first clamping member 81, is connected to the display 10, facilitating rotation of the display 10 on the movable base 14 and enhancing its flexibility.

[0058] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A display screen lifting mechanism, characterized in that: It comprises a lifting frame (1), a cable storage housing (2), and a mounting plate (3) rotatably arranged on the lifting frame (1); The lifting frame (1) includes a support frame (11) and a lifting platform (12) slidably arranged on the support frame (11) in a vertical direction, the mounting plate (3) is rotatably connected to the lifting platform (12), and a first driving component (4) for driving the lifting platform (12) to slide is provided on the support frame (11); A cable storage member is provided in the cable storage housing (2), and the cable storage member is used to drive the cable (9) to move into the cable storage housing (2), and the cable storage housing (2) is provided with an inlet (21) and an outlet (22) for the cable (9) to pass through. A cable reel (5) is rotatably provided in the cable storage housing (2), and a fixing member (51) for fixing the cable (9) is provided on the cable reel (5); a line segment in the middle of the cable (9) is fixed to the cable reel (5) by the fixing member (51); a driving member (123) for driving the cable reel (5) to rotate is provided on the lifting platform (12), and the lifting platform (12) can drive the cable reel (5) to rotate when sliding; The display screen lifting mechanism further comprises a clamping assembly (8) for clamping the cable (9), the clamping assembly (8) comprising a first clamping member (81) fixed on the lifting platform (12) and a second clamping member (82) fixed on the support frame (11), and the first clamping member (81) and the second clamping member (82) are respectively located on both sides of the cable storage housing (2); the cable (9) comprises a straight cable segment (91) and a spiral cable segment (92) that are interconnected, and the spiral cable segment (92) is used to connect to the display screen (10); the straight cable segment (91) is distributed on a side of the first clamping member (81) close to the second clamping member (82), and the spiral cable segment (92) is distributed on a side of the first clamping member (81) close to the mounting plate (3).

2. A display screen lifting mechanism according to claim 1, characterized in that: The first driving assembly (4) comprises a driving screw (41) rotatably arranged on the support frame (11) and a sliding sleeve (42) threadedly connected to the driving screw (41); The lifting platform (12) is fixedly connected to the sliding sleeve (42), and a guide groove (111) for the lifting platform (12) to slide is provided on the support frame (11).

3. The display screen lifting mechanism according to claim 2, characterized in that: Two driving screw rods (41) are arranged in parallel, and the sliding sleeves (42) are arranged in a one-to-one correspondence with the driving screw rods (41); the lifting platform (12) includes a lifting plate (121) slidingly arranged in the guide groove (111) and a supporting frame (122) arranged on the lifting plate (121), and the sliding sleeves (42) are all passed through and fixed on the lifting plate (121).

4. The display screen lifting mechanism according to claim 3, characterized in that: A first bevel gear (43) is coaxially fixed to one end of the driving screw rod (41), a second bevel gear (44) is rotatably provided on the support frame (11), and the first bevel gear (43) is meshed with the second bevel gear (44), and a first driving source (45) for driving the second bevel gear (44) to rotate is provided on the support frame (11).

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