Display screen for conference hall

Abstract

The utility model discloses a conference hall display screen which comprises a display screen body, a protective frame is fixedly arranged on one side of the display screen body, a limiting frame is fixedly arranged on one side of the protective frame, a two-way screw rod is rotationally arranged in the limiting frame, one end of the two-way screw rod penetrates through the limiting frame and is fixedly connected with a rotating handle, and the two-way screw rod is in threaded connection with two movable seats. The two ends of each movable base penetrate through the limiting frames to be fixedly connected with connecting arms correspondingly, one side of each connecting arm is slidably connected with the corresponding protective frame through a track structure, one side of each two adjacent connecting arms is fixedly connected with a protective shell, and the protective shells are movably connected with the display screen body. The two protective shells are moved in the adjacent directions so as to shield and protect the display screen body, the height of the display screen body can be adjusted, the two-way screw can be fixed, and the phenomenon that the display screen body is accidentally closed in the using process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, and more specifically, to a display screen for a conference hall. Background Art

[0002] A display screen is a device used to display information such as images, text or videos, and is usually composed of small LED module panels. In order to facilitate use in conference rooms, mobile display screens are often used in conference rooms. When the existing conference room display screens are not in use, the display screens will be exposed to the air for a long time, causing indoor dust to adhere to the display screen, which can easily cause the picture to be blurred, thus affecting the display effect. At the same time, the staff are required to wipe the display screen frequently, which increases the labor burden of the staff; secondly, the existing conference room display screens are usually fixed structures and cannot be adjusted in height according to usage requirements, thereby reducing the flexibility of the entire display screen and making it very inconvenient to use. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the problems existing in the prior art, the utility model provides a display screen for a conference room to solve the technical problem mentioned in the background technology that when the existing display screen for a conference room is not in use, indoor dust will adhere to the display screen, causing blurred images.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a display screen for conference halls, comprising a display screen body, a protective frame fixedly provided on one side of the display screen body, a limit frame fixedly provided on one side of the protective frame, a bidirectional screw rotatably provided in the limit frame, one end of the bidirectional screw passes through the limit frame and is fixedly connected to a handle, two movable seats are threadedly connected on the bidirectional screw, both ends of each movable seat pass through the limit frame and are respectively fixedly connected to connecting arms, one side of the connecting arm is slidably connected to the protective frame through a track structure, one side of two adjacent connecting arms are fixedly connected to a protective shell, and the protective shell is movably connected to the display screen body;

[0007] Two lifting arms are fixedly provided on one side of the limiting frame, a lifting platform is fixedly provided at the lower ends of the two lifting arms, a lead screw is fixedly provided at the lower end of the lifting platform, and a support shell is movably connected to the lower end of the lead screw.

[0008] The utility model is further configured that a base is fixedly provided at the lower end of the support shell, and a plurality of rollers are fixedly provided at the lower end of the base to facilitate the movement of the entire display screen body.

[0009] The utility model is further configured that a rotating ring is rotatably provided on the upper end of the support shell, and the rotating ring is threadedly connected to the lead screw to facilitate the movement of the lead screw.

[0010] The utility model is further configured such that the lower end of the lead screw extends into the support shell and is fixedly connected to two T-shaped limit blocks, and one end of each limit block extends to the outside of the support shell, so as to facilitate limiting the lead screw.

[0011] The utility model is further configured that both sides of the support shell are respectively provided with limiting grooves matched with the limiting blocks, so as to facilitate the limiting of the limiting blocks.

[0012] The utility model is further configured that a gear ring is fixedly provided on the outer side of the bidirectional screw to facilitate the rotation of the gear ring.

[0013] The utility model is further configured that two support plates are provided on the limit frame, and a fixing shell matching the gear ring is slidably connected between the two support plates through a track, so as to facilitate fixing the gear ring.

[0014] The utility model is further configured that two springs are fixedly connected between the fixed shell and the limiting frame to facilitate pushing the fixed shell to move.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a display screen for a conference room, which has the following beneficial effects:

[0017] 1. Through the coordination of the display screen main body, protective frame, limit frame, bidirectional screw, handle, movable seat, connecting arm and protective shell, when the display screen main body is not in use, the two protective shells can be moved to adjacent directions to block it, preventing dust from adhering to the display screen main body, thus ensuring the display effect of the display screen main body and reducing the frequency of wiping by the staff, thereby reducing the labor burden of the staff. At the same time, the protective shell can protect the display screen main body and prevent external force from damaging the display screen main body.

[0018] 2. Through the coordination of the lifting arm, lifting platform, lead screw, supporting shell, base, roller, rotating ring, limit block and limit groove, the height of the display screen body can be adjusted according to the use requirements, which increases the flexibility of the whole device and is very convenient to use.

[0019] 3. Through the cooperation of the bidirectional screw, gear ring, support plate, fixed shell and spring, the bidirectional screw can be fixed after use, thereby increasing the stability of the protective shell and avoiding the accidental closure of the display screen during use, thereby ensuring the normal use of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic diagram of the overall structure of a display screen for a conference room when it is not in use;

[0021] Figure 2 A schematic diagram of the overall structure of a conference room display screen when not in use from another viewing angle;

[0022] Figure 3 for Figure 2 A is a partial enlarged schematic diagram;

[0023] Figure 4 It is a schematic diagram of a partial cross-section structure when the protective shell is in a closed state;

[0024] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the support shell and its connecting parts when the screw is in the moving state.

[0025] In the figure, 1, display screen body; 2, protective frame; 3, limit frame; 4, bidirectional screw; 5, turning handle; 6, moving seat; 7, connecting arm; 8, protective shell; 9, lifting arm; 10, lifting platform; 11, screw; 12, supporting shell; 13, base; 14, roller; 15, rotating ring; 16, limit block; 17, limit groove; 18, gear ring; 19, support plate; 20, fixed shell; 21, spring. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figure 1-5A display screen for a conference room comprises a display screen body 1, a protective frame 2 is fixedly arranged on one side of the display screen body 1, a limiting frame 3 is fixedly arranged on one side of the protective frame 2, a bidirectional screw 4 is rotatably arranged in the limiting frame 3, one end of the bidirectional screw 4 passes through the limiting frame 3 and is fixedly connected with a turning handle 5, two movable seats 6 are threadedly connected to the bidirectional screw 4, both ends of each movable seat 6 pass through the limiting frame 3 and are respectively fixedly connected with connecting arms 7, one side of the connecting arm 7 is slidably connected with the protective frame 2 through a track structure, one side of two adjacent connecting arms 7 are fixedly connected with a protective shell 8, and the protective shell 8 is movably connected with the display screen body 1;

[0030] Two lifting arms 9 are fixedly provided on one side of the limiting frame 3 , a lifting platform 10 is fixedly provided at the lower end of the two lifting arms 9 , a lead screw 11 is fixedly provided at the lower end of the lifting platform 10 , and a support shell 12 is movably connected to the lower end of the lead screw 11 .

[0031] In this embodiment, when the display screen body 1 needs to be used, the handle 5 is turned, and the handle 5 drives the bidirectional screw 4 to rotate. The bidirectional screw 4 is provided with two threaded areas in opposite directions, so that the two movable seats 6 move in the separation direction at the same time, and the movable seat 6 drives the connecting arm 7 to move along the sliding connection with the protective frame 2, and the connecting arm 7 drives the protective shell 8 to move, so that the two protective shells 8 move in the separation direction at the same time, thereby exposing the display screen body 1 for use. When use is completed, the opposite operation can be used to cover the display screen body 1 while protecting it.

[0032] More specifically, the two protective shells 8 can be moved by rotating the handle 5, so that the display screen body 1 is exposed. When the display screen body 1 is used, the handle 5 can be rotated in the opposite direction to cover and protect the display screen body 1. When the height of the display screen body 1 needs to be adjusted, the lead screw 11 moves upward from the support shell 12, so that the lead screw 11 drives the lifting platform 10 and the lifting arm 9 to move upward, the lifting arm 9 drives the limit frame 3 and the protective frame 2 to move upward, and the protective frame 2 drives the display screen body 1 to move upward, so as to adjust its height.

[0033] See also Figure 1-5 As an implementation method for moving the lead screw 11: a base 13 is fixedly provided at the lower end of the support shell 12, a plurality of rollers 14 are fixedly provided at the lower end of the base 13, a rotating ring 15 is rotatably provided at the upper end of the support shell 12, the rotating ring 15 is threadedly connected to the lead screw 11, the lower end of the lead screw 11 extends into the support shell 12 and is fixedly connected to two T-shaped limit blocks 16, one end of each of the limit blocks 16 extends to the outside of the support shell 12, and limit grooves 17 matching the limit blocks 16 are respectively provided on both sides of the support shell 12.

[0034] Specifically, the support shell 12 is pushed, and the support shell 12 drives the entire device to move, and the roller 14 rotates. The rotating ring 15 is turned, and since the rotating ring 15 is threadedly connected with the lead screw 11, the lead screw 11 moves upward, and the lead screw 11 drives the two limit blocks 16 to move along the limit groove 17, thereby limiting the lead screw 11, and the lead screw 11 drives the lifting platform 10, the lifting arm 9, the limit frame 3 and the protective frame 2 to move upward, and the protective frame 2 drives the display screen body 1 to move upward, thereby adjusting the height of the display screen body 1.

[0035] See also Figure 1-5 As an implementation method for fixing the bidirectional screw 4: a gear ring 18 is fixedly arranged on the outer side of the bidirectional screw 4, two support plates 19 are arranged on the limit frame 3, and a fixed shell 20 matching the gear ring 18 is slidably connected between the two support plates 19 through a track, and two springs 21 are fixedly connected between the fixed shell 20 and the limit frame 3.

[0036] Specifically, the fixed shell 20 is pushed upward so that the fixed shell 20 moves upward along the sliding connection with the support plate 19, the fixed shell 20 is separated from the gear ring 18, and the spring 21 is compressed. At this time, the turning handle 5 can be rotated, and the turning handle 5 drives the bidirectional screw 4 to rotate. After the rotation of the bidirectional screw 4 is completed, the fixed shell 20 is released, and under the push of the spring 21, the fixed shell 20 moves downward along the sliding connection with the support plate 19, and the fixed shell 20 will be sleeved on the outside of the gear ring 18, thereby fixing the gear ring 18, and the turning handle 5 cannot be rotated at this time.

[0037] In summary, when the overall equipment is in use:

[0038] When the mobile display screen is needed in the conference room, the support shell 12 is pushed, and the support shell 12 drives the entire device to move, and the roller 14 rotates to place the entire device in the position where it needs to be used. The fixed shell 20 is pushed upward, so that the fixed shell 20 moves upward along the sliding connection with the support plate 19, and the fixed shell 20 is separated from the gear ring 18, and the spring 21 is compressed. At this time, the handle 5 can be rotated. When the handle 5 is rotated, the fixed shell 20 can be loosened. Under the push of the spring 21, the fixed shell 20 moves downward along the sliding connection with the support plate 19, and the fixed shell 20 will be sleeved on the outside of the gear ring 18, thereby fixing the gear ring 18, and the handle 5 cannot be rotated at this time.

[0039] When the display screen body 1 needs to be exposed, the handle 5 is turned, and the handle 5 drives the bidirectional screw 4 to rotate. The bidirectional screw 4 is provided with two threaded areas in opposite directions, so that the two moving seats 6 move in the separation direction at the same time, and the moving seat 6 drives the connecting arm 7 to move along the sliding connection with the protective frame 2, and the connecting arm 7 drives the protective shell 8 to move, so that the two protective shells 8 move in the separation direction at the same time, so that the display screen body 1 is exposed for use. When use is completed, the opposite operation can be used to cover the display screen body 1 while protecting it.

[0040] When the height of the display screen body 1 needs to be adjusted, the rotating ring 15 is rotated. Since the rotating ring 15 is threadedly connected to the lead screw 11, the lead screw 11 moves upward, and the lead screw 11 drives the two limit blocks 16 to move along the limit groove 17, thereby limiting the lead screw 11. The lead screw 11 drives the lifting platform 10, the lifting arm 9, the limit frame 3 and the protective frame 2 to move upward, and the protective frame 2 drives the display screen body 1 to move upward to adjust the height of the display screen body 1. The protective frame 2 is provided with a threading hole, and the connecting wire of the display screen body 1 can pass through the threading hole to connect with the outside.

[0041] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A display screen for a conference room, comprising a display screen main body (1), characterized in that: A protective frame (2) is fixedly provided on one side of the display screen body (1), a limiting frame (3) is fixedly provided on one side of the protective frame (2), a bidirectional screw (4) is rotatably provided inside the limiting frame (3), one end of the bidirectional screw (4) passes through the limiting frame (3) and is fixedly connected to a turning handle (5), two movable seats (6) are threadedly connected to the bidirectional screw (4), both ends of each movable seat (6) pass through the limiting frame (3) and are respectively fixedly connected to a connecting arm (7), one side of the connecting arm (7) is slidably connected to the protective frame (2) through a track structure, one side of two adjacent connecting arms (7) are fixedly connected to a protective shell (8), and the protective shell (8) is movably connected to the display screen body (1); Two lifting arms (9) are fixedly provided on one side of the limiting frame (3); a lifting platform (10) is fixedly provided at the lower ends of the two lifting arms (9); a lead screw (11) is fixedly provided at the lower end of the lifting platform (10); and a support shell (12) is movably connected to the lower end of the lead screw (11).

2. A display screen for a conference room according to claim 1, characterized in that: A base (13) is fixedly provided at the lower end of the support shell (12), and a plurality of rollers (14) are fixedly provided at the lower end of the base (13).

3. A display screen for a conference room according to claim 2, characterized in that: A rotating ring (15) is rotatably provided on the upper end of the support shell (12), and the rotating ring (15) is threadedly connected to the lead screw (11).

4. The display screen for conference room according to claim 3 is characterized by: The lower end of the lead screw (11) extends into the support shell (12) and is fixedly connected to two T-shaped limit blocks (16), and one end of each limit block (16) extends to the outside of the support shell (12).

5. The display screen for conference room according to claim 4 is characterized in that: Limiting grooves (17) matching with the limiting blocks (16) are respectively provided on both sides of the supporting shell (12).

6. A display screen for a conference room according to any one of claims 1 or 2, characterized in that: A gear ring (18) is fixedly provided on the outer side of the bidirectional screw (4).

7. A display screen for a conference room according to claim 6, characterized in that: The limiting frame (3) is provided with two support plates (19), and a fixed shell (20) matching with the gear ring (18) is slidably connected between the two support plates (19) via a track.

8. The display screen for conference room according to claim 7 is characterized by: Two springs (21) are fixedly connected between the fixed shell (20) and the limiting frame (3).

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