Display device

Abstract

The utility model relates to the technical field of display devices, in particular to a display device which comprises a base, a first sliding box and a second sliding box are connected to the surface of the base in a sliding mode, a fixing block is fixedly connected to the top of the base, and a first electric push rod is fixedly connected to the surface of the fixing block. And one end of the first electric push rod is fixedly connected with a connecting plate, the surface of the second sliding box is fixedly connected with a first rack, and the surface of the first rack is meshed with a gear. The device has the advantages that a second sliding box drives a first rack to move, the first rack drives a gear to rotate, so that the second rack moves, the first sliding box is driven to move, after use, a first electric push rod retracts, and then the second sliding box and the first sliding box can be drawn close to each other; at the moment, the first rack and the second rack are stored between the second sliding box and the first sliding box and are prevented from protruding out of the base, the occupied space is reduced, and storage is convenient.

Description

Technical Field

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

[0002] Smart cities utilize modern design concepts and relevant data analysis to integrate urban resources and optimize the allocation of various urban resources for management and construction. However, people currently have little understanding of this new concept. Therefore, display devices are often used in the process of urban publicity to introduce it to people.

[0003] A smart city design scene display device disclosed in Chinese patent CN219120106U improves the display effect and the convenience of the device. However, while solving the problem, the smart city design scene display device has the following defects:

[0004] 1. When the movable box slides, the gear moves along the rack, but the rack is long and cannot be moved or folded, causing it to protrude from the fixed base, making it inconvenient to store and occupying a large space.

[0005] 2. The handle is fixedly connected to the side of the fixed base. After the projector is raised, the handle will hinder the staff from adjusting the projector, which is inconvenient to use. Utility Model Content

[0006] The purpose of the utility model is to solve at least one of the technical defects described in the background technology.

[0007] To this end, one purpose of the utility model is to propose a display device, aiming to solve the problems in the prior art that the rack of the smart city design scene display device protrudes outside the fixed base and occupies a large space and the handle hinders the staff from adjusting the projector.

[0008] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a display device, including a base, the surface of the base is slidably connected to a first sliding box and a second sliding box, the top of the base is fixedly connected to a fixed block, the surface of the fixed block is fixedly connected to a first electric push rod, one end of the first electric push rod is fixedly connected to a connecting plate, the surface of the second sliding box is fixedly connected to a first rack, the surface of the first rack is meshed with a gear, and the surface of the gear is meshed with a second rack.

[0009] Preferably, any of the above schemes is that a storage groove is provided on the surface of the first sliding box, a push rod is rotatably connected to the surface of the storage groove, a spring is fixedly connected to the interior of the first sliding box, one end of the spring is fixedly connected to a clamping rod, and the clamping rod is used to limit the push rod.

[0010] Preferably, any of the above schemes is that a second electric push rod is fixedly connected to the interior of the second sliding box, one end of the second electric push rod is fixedly connected to the first square plate, the surface of the first square plate is fixedly connected to the projection board, a third electric push rod is fixedly connected to the interior of the first sliding box, one end of the third electric push rod is fixedly connected to the second square plate, a mounting seat is provided on the surface of the second square plate, the surface of the mounting seat is rotatably connected to the projector, and the second electric push rod and the third electric push rod are used to drive the projection board and the projector to move.

[0011] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0012] 1. The second sliding box drives the first rack to move, and the first rack drives the gear to rotate, so that the second rack moves, and drives the first sliding box to move. After use, the first electric push rod retracts, so that the second sliding box and the first sliding box are brought closer to each other. At this time, the first rack and the second rack are stored between the second sliding box and the first sliding box to avoid protruding out of the base, reduce the occupied space, and facilitate storage.

[0013] 2. When the projector needs to be adjusted, push the push rod downward to rotate it, squeeze the push rod to push the card rod back, and rotate the push rod into the storage slot. At this time, the staff can get closer to the projector for easy adjustment and use.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 It is a schematic diagram of the structure of the external contour of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the overall cross-section according to the utility model;

[0018] Figure 3 It is a schematic diagram of a partial cross-section of the structure of the first sliding box according to the utility model;

[0019] Figure 4 According to the utility model Figure 2 A schematic diagram of the structure enlargement at the center A;

[0020] Figure 5 According to the utility model Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0021] Wherein: 1. base, 2. first sliding box, 3. second sliding box, 4. fixed block, 5. first electric push rod, 6. connecting plate, 7. first rack, 8. gear, 9. second rack, 10. storage groove, 11. push rod, 12. spring, 13. clamping rod, 14. second electric push rod, 15. first square plate, 16. projection plate, 17. third electric push rod, 18. second square plate, 19. mounting seat, 20. projector, 21. screw barrel, 22. stud, 23. round rod, 24. first limit block, 25. slide groove, 26. second limit block, 27. pulley. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0023] 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-5 As shown, a display device of the present embodiment includes a base 1, a square groove is provided on the surface of the base 1, a first sliding box 2 and a second sliding box 3 are slidably connected on the surface of the base 1, a fixed block 4 is fixedly connected to the top of the base 1, a first electric push rod 5 is fixedly connected to the surface of the fixed block 4, a connecting plate 6 is fixedly connected to one end of the first electric push rod 5, the connecting plate 6 is fixedly connected to the second sliding box 3, a first rack 7 is fixedly connected to the surface of the second sliding box 3, a gear 8 is meshed on the surface of the first rack 7, the rack 8 rotates in the square groove on the base 1 through a rotating shaft, a second rack 9 is meshed on the surface of the gear 8, the second rack 9 is fixedly connected to the first sliding box 2, a slide groove 25 is provided on the surface of the base 1, a second limit block 26 is slidably connected inside the slide groove 25, the second limit block 26 is fixedly connected to the second sliding box 3, there are two groups of slide grooves 25 and second limit blocks 26, and another group of second limit blocks 26 is fixedly connected to the first sliding box 2, and a pulley 27 is fixedly installed at the bottom of the base 1.

[0025] Embodiment 1: A storage groove 10 is provided on the surface of the first sliding box 2, and a push rod 11 is rotatably connected to the surface of the storage groove 10. A spring 12 is fixedly connected to the inside of the first sliding box 2, and a clamping rod 13 is fixedly connected to one end of the spring 12. A groove is provided inside the first sliding box 2, and the spring 12 is fixed in the groove, and the clamping rod 13 slides in the groove.

[0026] Embodiment 2: A second electric push rod 14 is fixedly connected inside the second sliding box 3, one end of the second electric push rod 14 is fixedly connected to a first square plate 15, a projection plate 16 is fixedly connected to the surface of the first square plate 15, a third electric push rod 17 is fixedly connected inside the first sliding box 2, one end of the third electric push rod 17 is fixedly connected to a second square plate 18, a mounting seat 19 is provided on the surface of the second square plate 18, a projector 20 is rotatably connected to the surface of the mounting seat 19, the first square plate 15 and the second square plate 18 are slidably connected to the second sliding box 3 and the first sliding box 2 respectively, and an upper cover is fixedly installed on the top of the second sliding box 3 and the first sliding box 2, and the upper cover is detachable.

[0027] Embodiment 3: A screw barrel 21 is rotatably connected to the surface of the second square plate 18, a stud 22 is connected to the internal thread of the screw barrel 21, a round rod 23 is fixedly connected to the bottom of the mounting seat 19, one end of the round rod 23 is fixedly connected to the first limit block 24, the stud 22 is fixedly connected to the mounting seat 19, and the round rod 23 is slidably connected to the second square plate 8.

[0028] The working principle of the utility model is as follows: when in use, first push the push rod 11 to move the base 1 to the desired position through the pulley 27, push the push rod 11 to rotate downward to squeeze the card rod 13 to retract it and compress the spring 12, put the push rod 11 into the storage groove 10, and the spring 12 pushes the card rod 13 to reset and limit the push rod 11, start the first electric push rod 5 to push the connecting plate 6 and the second sliding box 3 to move, the second sliding box 3 drives the first sliding box 2 to move through the first rack 7, the gear 8 and the second rack 9, and the second limit block 26 slides in the slide groove 25 to prevent the first rack 7 and the second rack 9 from being separated from the gear 8. After a suitable projection distance is left between the second sliding box 3 and the first sliding box 2, remove the upper cover, start the second electric push rod 14 and the third electric push rod 17, so that the projection board 16 and the projector 20 are raised. At this time, the staff can adjust the projector 20, and can also fine-tune the height of the projector 20 by rotating the screw barrel 21 to move the stud 22.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. Start the first electric push rod 5 to extend it, push the connecting plate 6, drive the second sliding box 3 to move, the second sliding box 3 drives the first rack 7 to move, the first rack 7 drives the gear 8 to rotate, so that the second rack 9 moves, drives the first sliding box 2 to move, so that a suitable projection distance is left between the two. After use, the first electric push rod 5 is retracted, so that the second sliding box 3 and the first sliding box 2 are brought closer to each other. At this time, the first rack 7 and the second rack 9 are stored between the second sliding box 3 and the first sliding box 2 to avoid protruding out of the base 1, reduce the occupied space, and facilitate storage.

[0031] 2. The base 1 can be pushed to move by the push rod 11. After moving to a suitable position, the projection board 16 and the projector 20 are raised. When the projector 20 needs to be adjusted, the push rod 11 is pushed downward to rotate. The push rod 11 squeezes and pushes the card rod 13 to retract, compresses the spring, and rotates the push rod 11 into the storage slot 10. At this time, the staff can get closer to the projector 20 for easy adjustment and convenient use.

Claims

1. A display device, characterized in that: The invention comprises a base (1), the surface of the base (1) is slidably connected to a first sliding box (2) and a second sliding box (3), the top of the base (1) is fixedly connected to a fixing block (4), the surface of the fixing block (4) is fixedly connected to a first electric push rod (5), one end of the first electric push rod (5) is fixedly connected to a connecting plate (6), the surface of the second sliding box (3) is fixedly connected to a first rack (7), the surface of the first rack (7) is meshed with a gear (8), and the surface of the gear (8) is meshed with a second rack (9).

2. The display device according to claim 1, characterized in that: A storage groove (10) is provided on the surface of the first sliding box (2), and a push rod (11) is rotatably connected to the surface of the storage groove (10). A spring (12) is fixedly connected inside the first sliding box (2), and a clamping rod (13) is fixedly connected to one end of the spring (12).

3. The display device according to claim 1, characterized in that: A second electric push rod (14) is fixedly connected inside the second sliding box (3), one end of the second electric push rod (14) is fixedly connected to a first square plate (15), and a projection plate (16) is fixedly connected to the surface of the first square plate (15); a third electric push rod (17) is fixedly connected inside the first sliding box (2), one end of the third electric push rod (17) is fixedly connected to the second square plate (18), a mounting seat (19) is provided on the surface of the second square plate (18), and a projector (20) is rotatably connected to the surface of the mounting seat (19).

4. The display device according to claim 3, characterized in that: A screw barrel (21) is rotatably connected to the surface of the second square plate (18), and a stud (22) is threadedly connected to the interior of the screw barrel (21).

5. The display device according to claim 3, characterized in that: A round rod (23) is fixedly connected to the bottom of the mounting seat (19), and a first limiting block (24) is fixedly connected to one end of the round rod (23).

6. The display device according to claim 1, characterized in that: A sliding groove (25) is provided on the surface of the base (1), and a second limiting block (26) is slidably connected inside the sliding groove (25).

7. The display device according to claim 1, characterized in that: A pulley (27) is fixedly mounted on the bottom of the base (1).

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