Liquid crystal display lifting device

Abstract

The utility model relates to a liquid crystal display lifting device which comprises a lifting mechanism and a display screen installed in the lifting mechanism, a protection box is arranged in the lifting mechanism, the display screen is arranged in the protection box, an outer cover is arranged at the upper end of the protection box, an automatic cover plate is arranged in the outer cover, and a rear cover is arranged at the rear end of the protection box. A lifting supporting seat is arranged at the lower end of the protection box, a lifting connecting plate is arranged in the lifting supporting seat, a lifting bearing plate is arranged at the upper end of the lifting connecting plate, a motor is installed in the lifting connecting plate, the lower end of the lifting connecting plate is connected with the lifting supporting seat, and an output gear is arranged at the output end of the motor and meshed with a rack. The lifting display device has the advantages that the motor is matched with the rack to lift the display screen, so that the display screen can be stored in a table body when being carried or moved, and the situation that external objects are in contact with the display screen to be damaged due to collision during carrying or moving is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to a lifting device for a liquid crystal display. Background Art

[0002] Most of the existing LCD devices are used by installing the monitor on a chassis, with the display screen on the monitor directly exposed to the outside. During transportation or movement, if the display screen on the monitor directly contacts other external objects, it is easy to cause the display screen to be bumped and damaged, resulting in increased equipment loss. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a liquid crystal display lifting device, which solves the technical problem that the display screen on the display is easily damaged by direct contact with other external objects, resulting in increased loss of equipment.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] An embodiment of the utility model provides a lifting device for a liquid crystal display, comprising a lifting mechanism and a display screen installed in the lifting mechanism, wherein a protection box is arranged in the lifting mechanism, a display screen is arranged inside the protection box, an outer cover is arranged at the upper end of the protection box, an automatic cover plate is arranged in the outer cover, a back cover is arranged at the rear end of the protection box, a lifting support seat is arranged at the lower end of the protection box, a lifting connecting plate is arranged in the lifting support seat, a lifting receiving plate is arranged at the upper end of the lifting connecting plate, a motor is installed in the lifting connecting plate, the lower end of the lifting connecting plate is connected to the lifting support seat, an output gear is arranged at the output end of the motor, the output gear is meshed with a rack, and the rack is installed on the back cover.

[0008] Preferably, a sliding extension plate is further provided at the lower end of the protection box, and the protection box comprises a box body, a receiving cavity is provided in the box body, and fixing plates are provided on both sides of the receiving cavity.

[0009] Preferably, lifting auxiliary plates are provided on both sides of the lifting support seat, and an external kit is also provided at the rear end of the lifting support seat.

[0010] Preferably, linear guide shafts are arranged on both sides of the rack, and the linear guide shafts are arranged between the rear cover and the lifting support seat.

[0011] Preferably, a welded square tube is further provided at the side end of the rear cover, a limit switch is provided adjacent to the upper portion of the welded square tube, and a fixing frame is further provided at the upper end of the rear cover.

[0012] Preferably, a first pulley, a second pulley and a flip mechanism are provided at the lower end of the outer cover, the first pulley and the second pulley are arranged opposite to each other, and the flip mechanism is arranged adjacent to the second pulley.

[0013] Preferably, one end of the flip mechanism is connected to the outer cover, and the other end of the flip mechanism is connected to the automatic cover.

[0014] Preferably, the flipping mechanism includes a mounting block, a bolt, a return spring, a flip plate, a roller and a mounting shaft, the bolt is inserted into and passes through the mounting block and the flip plate, the bolt is outer-circuited with the return spring, the end of the flip plate is connected to the mounting shaft, and the mounting shaft is outer-circuited with a roller.

[0015] Preferably, the external kit comprises a sleeve with a through hole, and a mounting plate is arranged on the outer side of the sleeve.

[0016] (III) Beneficial effects

[0017] The beneficial effect of the utility model is that the liquid crystal display lifting device of the utility model lifts the display screen by the action of the motor in cooperation with the rack, so that the display screen can be stored in the table body when it is transported or moved, avoiding the situation where external objects come into contact with the display screen during transportation or movement and cause collision and damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the overall structure in the embodiment of the utility model;

[0019] Figure 2 This is a front view of the overall structure of the embodiment of the utility model;

[0020] Figure 3 It is a three-dimensional diagram of the lifting mechanism in the embodiment of the utility model;

[0021] Figure 4 In the embodiment of the utility model Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 A three-dimensional diagram of a protection box in an embodiment of the utility model;

[0023] Figure 6 This is a structural diagram of the flipping mechanism in the embodiment of the utility model;

[0024] Figure 7 It is a three-dimensional diagram of an external kit in an embodiment of the utility model.

[0025] [Description of Reference Numerals]

[0026] 1. Outer cover; 2. Automatic cover; 3. Display screen; 4. Protection box; 40. Box body; 41. Accommodating chamber; 42. Fixed plate; 5. Lifting support seat; 6. Lifting receiving plate; 7. Output gear; 8. Lifting connecting plate; 9. Motor; 10. Back cover; 11. Sliding extension plate; 12. Lifting auxiliary plate; 13. Rack; 14. Fixed frame; 15. Linear guide shaft; 16. Welded square tube; 17. Limit switch; 18. First pulley; 19. Second pulley; 20. Flipping mechanism; 21. Mounting block; 22. Bolt; 23. Reset spring; 24. Mounting shaft; 25. Roller; 26. Flipping plate; 27. External kit; 28. Sleeve; 29. ​​Through hole; 201. Mounting plate. DETAILED DESCRIPTION

[0027] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0028] See also Figures 1 to 7 The utility model provides a lifting device for a liquid crystal display, comprising a lifting mechanism and a display screen 3 installed in the lifting mechanism, a protection box 4 is arranged in the lifting mechanism, a display screen 3 is arranged inside the protection box 4, an outer cover 1 is arranged at the upper end of the protection box 4, an automatic cover plate 2 is arranged in the outer cover 1, a back cover 10 is arranged at the rear end of the protection box 4, a lifting support seat 5 is arranged at the lower end of the protection box 4, a lifting connecting plate 8 is arranged in the lifting support seat 5, a lifting receiving plate 6 is arranged at the upper end of the lifting connecting plate 8, a motor 9 is installed in the lifting connecting plate 8, and the lower end of the lifting connecting plate 8 is connected to the lifting support seat 5, an output gear 7 is arranged at the output end of the motor 9, and the output gear 7 is meshed with a rack 13, the rack 13 is installed on the back cover 10, and the rack 13 is a spur rack 13.

[0029] In the embodiment of the present disclosure, a sliding extension plate 11 is further provided at the lower end of the protection box 4 . The protection box 4 includes a box body 40 . A receiving cavity 41 is provided in the box body 40 . Fixed plates 42 are provided on both sides of the receiving cavity 41 .

[0030] In the embodiment of the present disclosure, lifting auxiliary plates 12 are provided on both sides of the lifting support base 5 , and an external kit 27 is also provided at the rear end of the lifting support base 5 .

[0031] In the embodiment of the present disclosure, linear guide shafts 15 are disposed on both sides of the rack 13 , and the linear guide shafts 15 are disposed between the rear cover 10 and the lifting support seat 5 .

[0032] In the embodiment of the present disclosure, a welded square tube 16 is further provided at the side end of the rear cover 10, and a limit switch 17 is provided adjacent to the upper part of the welded square tube 16. The start and stop of the motor 9 are controlled by the limit switch 17 to limit the lifting stroke, and a fixing frame 14 is also provided at the upper end of the rear cover 10.

[0033] In the embodiment of the present disclosure, a first pulley 18 , a second pulley 19 and a flip mechanism 20 are provided at the lower end of the outer cover 1 , the first pulley 18 and the second pulley 19 are arranged opposite to each other, and the flip mechanism 20 is arranged adjacent to the second pulley 19 .

[0034] In the embodiment of the present disclosure, one end of the flip mechanism 20 is connected to the outer cover 1 , and the other end of the flip mechanism 20 is connected to the automatic cover plate 2 .

[0035] In the embodiment of the present disclosure, the flip mechanism 20 includes a mounting block 21, a bolt 22, a reset spring 23, a flip plate 26, a roller 25 and a mounting shaft 24. The bolt 22 is inserted into and passes through the mounting block 21 and the flip plate 26. The bolt 22 is outer-connected with the reset spring 23. The end of the flip plate 26 is connected to the mounting shaft 24. The mounting shaft 24 is outer-connected with a roller 25. When the display screen descends, under the action of the reset spring 23, the flip plate 26 drives the automatic cover 2 to close.

[0036] In an embodiment of the present disclosure, the external kit 27 includes a sleeve 28 with a through hole 29, and the linear guide shaft 15 can move up and down through the through hole 29 of the sleeve 28. A mounting plate 201 is provided on the outside of the sleeve 28, and the mounting plate 201 is fixed to the lifting support seat 5 by screws.

[0037] In summary, the display screen is raised and lowered through the action of the motor in coordination with the rack, so that the display screen can be stored in the table when it is transported or moved, and driven by the flip mechanism, the automatic cover will close the lifting opening as the display screen descends, avoiding collision and damage caused by external objects coming into contact with the display screen during transportation or movement.

[0038] The LCD display lifting device mentioned in this embodiment is suitable for entertainment and work scenes such as outdoor audio, square dance audio, outdoor pull-bar video audio, paperless conference system, digital conference system, and LCD screen display lifting device in multimedia classrooms.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Although the embodiments of the present invention have been shown and described above, it is understandable that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field cannot change, modify, replace or modify the above embodiments within the scope of the present invention.

Claims

1. A liquid crystal display lifting device, comprising a lifting mechanism and a display screen (3) installed in the lifting mechanism, characterized in that: A protection box (4) is arranged inside the lifting mechanism, a display screen (3) is arranged inside the protection box (4), an outer cover (1) is arranged at the upper end of the protection box (4), an automatic cover plate (2) is arranged inside the outer cover (1), a rear cover (10) is arranged at the rear end of the protection box (4), a lifting support seat (5) is arranged at the lower end of the protection box (4), a lifting connection plate (8) is arranged inside the lifting support seat (5), a lifting receiving plate (6) is arranged at the upper end of the lifting connection plate (8), a motor (9) is installed in the lifting connection plate (8), the lower end of the lifting connection plate (8) is connected to the lifting support seat (5), an output gear (7) is arranged at the output end of the motor (9), the output gear (7) is meshed with a rack (13), and the rack (13) is installed on the rear cover (10).

2. The liquid crystal display lifting device according to claim 1, characterized in that: A sliding extension plate (11) is also provided at the lower end of the protection box (4). The protection box (4) comprises a box body (40). A receiving cavity (41) is provided in the box body (40). Fixed plates (42) are provided on both sides of the receiving cavity (41).

3. The liquid crystal display lifting device according to claim 1, characterized in that: Lifting auxiliary plates (12) are arranged on both sides of the lifting support seat (5), and an external connecting kit (27) is also arranged at the rear end of the lifting support seat (5).

4. The liquid crystal display lifting device according to claim 1, characterized in that: Linear guide shafts (15) are arranged on both sides of the rack (13), and the linear guide shafts (15) are arranged between the rear cover (10) and the lifting support seat (5).

5. The liquid crystal display lifting device according to claim 1, characterized in that: A welded square tube (16) is also provided at the side end of the rear cover (10), a limit switch (17) is provided above and adjacent to the welded square tube (16), and a fixing frame (14) is also provided at the upper end of the rear cover (10).

6. The liquid crystal display lifting device according to claim 1, characterized in that: A first pulley (18), a second pulley (19) and a flipping mechanism (20) are arranged at the lower end of the outer cover (1); the first pulley (18) and the second pulley (19) are arranged opposite to each other, and the flipping mechanism (20) is arranged adjacent to the second pulley (19).

7. The liquid crystal display lifting device according to claim 6, characterized in that: One end of the flipping mechanism (20) is connected to the outer cover (1), and the other end of the flipping mechanism (20) is connected to the automatic cover plate (2).

8. The liquid crystal display lifting device according to claim 6, characterized in that: The flip mechanism (20) comprises a mounting block (21), a bolt (22), a return spring (23), a flip plate (26), a roller (25) and a mounting shaft (24); the bolt (22) is inserted into and passes through the mounting block (21) and the flip plate (26); the bolt (22) is outer-coupled with the return spring (23); the end of the flip plate (26) is connected to the mounting shaft (24); and the mounting shaft (24) is outer-coupled with the roller (25).

9. The liquid crystal display lifting device according to claim 3, characterized in that: The external connection kit (27) comprises a sleeve (28) provided with a through hole (29), and a mounting plate (201) is arranged on the outer side of the sleeve (28).

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