Conference screen

Abstract

The utility model relates to the technical field of conference screens, in particular to a conference screen, which comprises a display device for conference display and a base for loading the display device, the display device comprises a protective cover and a display screen in the protective cover, a fixing block is arranged on the back of the protective cover, a steering wheel is arranged on the upper surface of the base and is rotatably connected with the base, and the display screen is arranged on the base. A lifting device is arranged on the upper surface of the steering wheel and comprises a driving motor and a spiral column in linkage fit with an output shaft of the driving motor, the spiral column is sleeved with a lifting block, and the lifting block is correspondingly connected with the fixing block in an inserted mode; according to the conference screen device, a lifting block on a spiral column moves up and down by controlling forward and reverse rotation of an output shaft of a driving motor and linkage matching, the height of a display screen is adjusted, the rotating angle of the screen is adjusted by rotationally connecting a fixing column and a rotating hole, the rotating angle of the screen is fixed by manually turning a screw, and the safety of the display screen is enhanced by arranging a protective cover; and the display screen can be quickly disassembled by inserting and matching the trapezoidal block and the trapezoidal hole.

Description

Technical Field

[0001] The utility model relates to the technical field of conference screens, in particular to a conference screen. Background Art

[0002] Conference screens are also often called smart conference tablets, interactive electronic whiteboards or all-in-one conference machines. In traditional meetings, multiple devices such as projectors, whiteboards, and audio systems are often required. Not only are the settings cumbersome, but the functions are also single, making it difficult to meet the needs of modern efficient meetings. Conference screens integrate multiple functions such as display, writing, interaction, and video conferencing, greatly improving the efficiency and convenience of meetings. Conference screens record meeting content electronically, which not only saves paper, but also facilitates the organization, sharing, and archiving of post-meeting materials, which helps reduce the company's operating costs in the long run.

[0003] The utility model with announcement number CN114017643B discloses a movable conference screen, comprising a display screen and a bracket, wherein a roller is arranged at the bottom of the bracket, and an electromagnetic brake for braking the roller is arranged on the roller; when the roller is in a non-braking state, when the moving speed of the bracket is zero, the electromagnetic brake locks the roller to put the roller into a braking state; when the roller is in a braking state, when the display screen is subjected to an external force parallel to its own length direction, the electromagnetic brake unlocks the roller to release the braking state of the roller;

[0004] In the above technical solution, the control method used when locking or unlocking the roller of the movable conference screen is very convenient and intelligent; however, the height of the conference screen cannot be adjusted, and cannot be adjusted according to the specific layout of the conference room and the sitting or standing posture requirements of the participants. Moreover, the conference screen cannot adjust the rotation angle of the screen, and cannot display the picture in multiple directions to reduce visual blind spots. In addition, the conference screen is not provided with a protective cover. The conference screen has low safety and is easily subject to physical damage, which reduces the service life of the conference screen. Finally, the conference screen is complicated to disassemble and is not convenient for quick replacement. Utility Model Content

[0005] The purpose of the utility model is to provide a conference screen to solve the problem that the movable conference screen with the authorization announcement number CN114017643B proposed in the above background technology cannot be adjusted in height, and cannot be adjusted according to the specific layout of the conference room and the sitting or standing posture requirements of the participants. Moreover, the conference screen cannot adjust the rotation angle of the screen, and cannot display the picture in multiple directions to reduce the visual blind spot. Moreover, the conference screen is not provided with a protective cover, the conference screen has low safety, is easily subject to physical damage, and reduces the service life of the conference screen. Finally, the conference screen is complicated to disassemble and is not convenient for rapid replacement.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A conference screen comprises a display device for conference display and a base for loading the display device, wherein the display device comprises a protective cover and a display screen installed inside the protective cover, a fixing strip is provided at the front end of the protective cover, a fixing block is provided at the center position of the back of the protective cover, a steering wheel is provided at the center position of the upper surface of the base, the steering wheel is rotatably connected to the base, support columns are symmetrically provided on the upper surface of the steering wheel near the edge position, a lifting device is provided on the upper surface of the steering wheel, the lifting device comprises a spiral column that is linked with a driving motor and an output shaft of the driving motor, a lifting block is sleeved on the spiral column, and the lifting block is correspondingly plugged and installed with the fixing block.

[0008] Preferably, the protective cover has four corners on its front end surface each having a first fixing hole, the fixing strip has a second fixing hole at a position corresponding to the first fixing hole, and the first fixing hole and the second fixing hole are matched with fixing screws, which are threadedly connected to the first fixing hole and the second fixing hole.

[0009] In the utility model, the safety of the display screen is enhanced by providing a protective cover, and the connection between the display screen and the protective cover is made more secure by providing a fixing bar, the fixing bar is tightly fitted with the protective cover, and the fixing screws are passed through the second fixing hole and the first fixing hole in sequence to realize the fixing combination of the fixing bar and the protective cover. When the fixing screws are taken out, the fixing bar is separated from the protective cover, so that the display screen can be disassembled and replaced.

[0010] Preferably, trapezoidal blocks are symmetrically arranged on the rear end surface of the fixed block, and trapezoidal holes are opened at the front end of the lifting block and at the corresponding positions of the trapezoidal blocks. The width of the inner wall of the trapezoidal hole matches the width of the outer wall of the trapezoidal block, and the trapezoidal block is plugged into the trapezoidal hole.

[0011] In the utility model, the width of the inner wall of the trapezoidal hole is matched with the width of the outer wall of the trapezoidal block, so that the connection between the fixed block and the lifting block is more firm, and the trapezoidal block is plugged into the trapezoidal hole, which is convenient for disassembly of the display screen and quick replacement.

[0012] Preferably, a rotating hole is provided at the center of the steering wheel, and a fixing column is provided at a position corresponding to the rotating hole to be rotatably connected to the base.

[0013] In the utility model, the fixing column is fixed by welding, and the fixing column is rotatably connected, so that the rotation angle of the display screen can be adjusted.

[0014] Preferably, a threaded hole is opened on the left side of the steering wheel near the edge, and a hand screw is provided on the threaded hole, and the hand screw is threadedly connected to the threaded hole.

[0015] In the utility model, the hand screw is turned to control the bottom end of the hand screw to contact with the base, and the position of the steering wheel is fixed under the action of friction force, thereby achieving a fixed rotation angle of the display screen.

[0016] Preferably, a conversion device is provided between the output shaft of the drive motor and the bottom of the spiral column, and the conversion device includes a first conical tooth meshing with a second conical tooth, the first conical tooth is coaxially connected to the output shaft of the drive motor, and the second conical tooth is coaxially connected to the bottom of the spiral column.

[0017] In the utility model, the driving motor is connected to an external power supply, and the output shaft of the driving motor is controlled to rotate forward and reversely, so that the conversion device drives the spiral column to rotate forward and reverse, thereby realizing the position adjustment of the lifting block moving up and down.

[0018] Preferably, a rectangular isolation cover is provided on the upper surface of the lifting device, and a heat dissipation hole is opened on the right side of the isolation cover.

[0019] In the utility model, an isolation cover is provided to prevent personnel from accidentally touching the lifting device, thereby reducing safety risks. At the same time, heat dissipation holes are provided to help dissipate heat from the drive motor, thereby extending the service life of the device.

[0020] Preferably, a limiting hole is opened at a position corresponding to the lifting block and the support column, and the limiting hole is slidably connected to the support column. A spiral hole is opened at a position corresponding to the lifting block and the spiral column, and the spiral hole is threadedly connected to the spiral column.

[0021] In the utility model, the lifting block is slidably connected to the support column through the limiting hole, so that the lifting block can only slide up and down, and is threadedly connected to the spiral column through the spiral hole. The lifting and lowering of the lifting block is controlled by controlling the rotation direction of the spiral column. At the same time, the surface of the spiral column near the top is smooth and has no threaded structure, which prevents the lifting block from continuously rising beyond the height of the spiral column and prevents safety accidents.

[0022] Preferably, universal wheels are provided on the bottom surface of the base near the corners, and the universal wheels are fixedly connected to the base by screws.

[0023] In the utility model, a plurality of universal wheels are arranged at the bottom of the base near the corners, so that the whole device can move freely, and the universal wheels are provided with manual brake pads, which can be fixed at the corresponding position after being moved to the corresponding position.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] 1. The utility model controls the output shaft of the driving motor to rotate forward and reversely, and the spiral column is driven forward and reversely in linkage, so that the lifting block on the spiral column moves up and down, thereby realizing the adjustment of the height of the display screen. The fixed column set on the upper surface of the base is rotatably connected with the rotating hole opened on the steering wheel, so that the display screen can adjust the rotation angle of the screen. The screen rotation angle can be fixed by hand-tightening screws under the action of friction. The safety of the display screen is enhanced by setting a protective cover on the outer surface of the display screen, and the service life is increased. The fixed block and the lifting block are quickly disassembled or installed by plugging and matching the trapezoidal block and the trapezoidal hole, thereby realizing the rapid disassembly of the display screen;

[0026] 2. The utility model provides an isolation cover on the lifting device to prevent people from accidentally touching the lifting device, thereby enhancing the safety of the device. Heat dissipation holes are provided on the side of the isolation cover to help dissipate heat from the drive motor. A number of universal wheels are provided under the base to achieve overall mobility of the device, thereby increasing the use scenarios of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the overall lifting and lowering adjustment state of the utility model;

[0029] Figure 3 This is a schematic diagram of the display device of the utility model in the taken-out state;

[0030] Figure 4 This is a schematic diagram of the combined structure of the base, steering wheel and lifting device of the utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the steering wheel and the base of the utility model in a separated state;

[0032] Figure 6 This is a schematic diagram of the combined structure of the steering wheel and the isolation cover of the utility model;

[0033] Figure 7 This is a schematic diagram of the fixed block and the lifting block of the utility model in a separated state;

[0034] Figure 8 It is a schematic diagram of the exploded structure of the display device of the utility model.

[0035] The meaning of each number in the figure is:

[0036] Display device; 10, fixing block; 100, trapezoidal block; 11, protective cover; 110, first fixing hole; 12, display screen; 13, fixing bar; 130, second fixing hole; 131, fixing screw;

[0037] Base;

[0038] Steering wheel; 30, support column; 31, lifting block; 310, limit hole; 311, spiral hole; 312, trapezoidal hole; 32, threaded hole; 33, hand screw; 34, rotating hole; 340, fixing column;

[0039] Lifting device; 40, spiral column; 41, isolation cover; 410, heat dissipation hole; 42, drive motor; 43, conversion device;

[0040] 5. Universal wheel. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] See also Figure 1-Figure 8 , this embodiment provides a technical solution:

[0043] A conference screen includes a display device 1 for conference display and a base 2 for loading the display device 1, the display device 1 includes a protective cover 11 and a display screen 12 installed inside the protective cover 11, a fixing strip 13 is provided at the front end of the protective cover 11, and first fixing holes 110 are opened at four corners of the front end surface of the protective cover 11, and second fixing holes 130 are opened on the fixing strip 13 at positions corresponding to the first fixing holes 110, and fixing screws 131 are matched on the first fixing holes 110 and the second fixing holes 130, and the fixing screws 131 are threadedly connected to the first fixing holes 110 and the second fixing holes 130.

[0044] In the utility model, the safety of the display screen 12 is enhanced by setting up the protective cover 11, and the connection between the display screen 12 and the protective cover 11 is made more secure by setting up the fixing bar 13. The fixing bar 13 fits tightly with the protective cover 11, and the fixing screws 131 pass through the second fixing hole 130 and the first fixing hole 110 in sequence to realize the fixing combination of the fixing bar 13 and the protective cover 11. When the fixing screws 131 are taken out, the fixing bar 13 is separated from the protective cover 11, so that the display screen 12 can be disassembled and replaced.

[0045] Furthermore, a fixed block 10 is provided at the center position of the back side of the protective cover 11, and a trapezoidal block 100 is symmetrically provided on the rear end surface of the fixed block 10. Trapezoidal holes 312 are provided at the front end of the lifting block 31 and at the corresponding positions of the trapezoidal block 100. The width of the inner wall of the trapezoidal hole 312 is adapted to the width of the outer wall of the trapezoidal block 100, and the trapezoidal block 100 is plugged into the trapezoidal hole 312.

[0046] In the present invention, the width of the inner wall of the trapezoidal hole 312 is matched with the width of the outer wall of the trapezoidal block 100, so that the connection between the fixed block 10 and the lifting block 31 is more secure, and the trapezoidal block 100 is plugged into the trapezoidal hole 312, which is convenient for disassembly of the display screen 12 and quick replacement.

[0047] Specifically, a steering wheel 3 is provided at the center position of the upper surface of the base 2, and the steering wheel 3 is rotatably connected to the base 2. Support columns 30 are symmetrically provided near the edge position of the upper surface of the steering wheel 3. A rotating hole 34 is opened at the center position of the steering wheel 3. A fixed column 340 is provided at a position corresponding to the rotating hole 34 of the base 2, and the fixed column 340 is rotatably connected to the rotating hole 34.

[0048] In the present invention, the fixing column 340 is fixed to the base 2 by welding, and the fixing column 340 is rotatably connected to the rotating hole 34 , so that the rotating angle of the display screen 12 can be adjusted.

[0049] It should be noted that a threaded hole 32 is provided on the left side of the steering wheel 3 near the edge, and a hand screw 33 is provided on the threaded hole 32 , and the hand screw 33 is threadedly connected to the threaded hole 32 .

[0050] In the present invention, by turning the hand screw 33 , the bottom end of the hand screw 33 is controlled to contact the base 2 , and the position of the steering wheel 3 is fixed under the action of friction force, thereby achieving a fixed rotation angle of the display screen 12 .

[0051] In detail, a lifting device 4 is provided on the upper surface of the steering wheel 3 , a rectangular isolation cover 41 is provided on the upper surface of the lifting device 4 , and a heat dissipation hole 410 is opened on the right side of the isolation cover 41 .

[0052] In the present invention, an isolation cover 41 is provided to prevent people from accidentally touching the lifting device 4, thereby reducing safety risks. Meanwhile, the heat dissipation holes 410 are provided to help dissipate heat from the drive motor 42, thereby extending the service life of the device.

[0053] Secondly, the lifting device 4 includes a spiral column 40 that is linked to a driving motor 42 and an output shaft of the driving motor 42. A conversion device 43 is provided between the output shaft of the driving motor 42 and the bottom of the spiral column 40. The conversion device 43 includes a first conical tooth and a second conical tooth that meshes with the first conical tooth. The first conical tooth is coaxially connected to the output shaft of the driving motor 42, and the second conical tooth is coaxially connected to the bottom of the spiral column 40.

[0054] In the present invention, the drive motor 42 is connected to an external power supply, and the output shaft of the drive motor 42 is controlled to rotate forward and reversely, so that the conversion device 43 drives the spiral column 40 to rotate forward and reverse, thereby realizing the position adjustment of the lifting block 31 moving up and down.

[0055] It should be noted that a lifting block 31 is sleeved on the spiral column 40, the lifting block 31 is plugged and installed corresponding to the fixed block 10, a limiting hole 310 is opened at the corresponding position of the lifting block 31 and the support column 30, the limiting hole 310 is slidably connected to the support column 30, a spiral hole 311 is opened at the corresponding position of the lifting block 31 and the spiral column 40, and the spiral hole 311 is threadedly connected to the spiral column 40.

[0056] In the utility model, the limiting hole 310 is slidably connected to the support column 30, so that the lifting block 31 can only slide up and down, and is threadedly connected to the spiral column 40 through the spiral hole 311. The lifting and lowering of the lifting block 31 is controlled by controlling the rotation direction of the spiral column 40. At the same time, the surface of the spiral column 40 near the top is smooth and has no threaded structure, which prevents the lifting block 31 from continuously rising beyond the height of the spiral column 40 and preventing safety accidents.

[0057] Finally, it should be mentioned that universal wheels 5 are provided on the bottom surface of the base 2 near the corners, and the universal wheels 5 are fixedly connected to the base 2 by screws.

[0058] In the present invention, a plurality of universal wheels 5 are provided at the bottom of the base 2 near the corners, so that the whole device can move freely, and the universal wheels 5 are provided with manual brake pads, and can be fixed at the corresponding position after being moved to the corresponding position.

[0059] When a conference screen in this embodiment is used, the user first places the display screen 12 in the protective cover 11, aligns the fixing bar 13 with the protective cover 11, screws the fixing screws 131 into the second fixing hole 130 and the first fixing hole 110 in sequence, fixes a plurality of universal wheels 5 to the bottom of the base 2 near the corner by screws, aligns the rotating hole 34 on the steering wheel 3 with the fixing column 340 on the base 2 for rotational connection, fixes the drive motor 42 to the steering wheel 3 by screws, and screws the hand screws 33 through the threaded holes. 32 threaded connection, the output shaft of the driving motor 42 is coaxially connected to the first conical tooth, the second conical tooth is coaxially connected to the bottom of the spiral column 40, and the first conical tooth is meshed with the second conical tooth, the isolation cover 41 is sleeved on the upper surface of the lifting device 4 along the spiral column 40 through the opening, the lifting block 31 is sleeved into the corresponding support column 30 and the spiral column 40 through the opened limiting hole 310 and the spiral hole 311, and the fixing block 10 behind the protective cover 11 is plugged into the trapezoidal hole 312 opened on the lifting block 31 through the trapezoidal block 100;

[0060] When the conference screen needs to be used, first use the universal wheel 5 to move the device to the position where it needs to be used, turn on the handbrake to fix the position of the universal wheel 5, connect the power, turn on the display screen 12, and control the forward and reverse rotation of the drive motor 42 to control the lifting and lowering of the display device 1 to adjust it to a suitable height. The display device 1 is adjusted to a suitable angle by rotating the steering wheel 3, and the friction between the hand screw 33 and the base 2 is used to fix the rotated angle. When it is not needed, turn off the display screen 12, unplug the power, turn on the handbrake of the universal wheel 5, move the device to a suitable position, turn on the handbrake, and fix the position of the universal wheel 5. When the display screen 12 fails and needs to be replaced, turn off the power, pull out the trapezoidal block 100 on the fixing block 10 behind the display device 1 from the trapezoidal hole 312 opened on the lifting block 31, unscrew the fixing screw 131, separate the fixing bar 13, and take out the display screen 12 inside the protective cover 11.

Claims

1. A conference screen, comprising a display device (1) for conference display and a base (2) for mounting the display device (1), characterized in that: The display device (1) comprises a protective cover (11) and a display screen (12) installed inside the protective cover (11); a fixing strip (13) is provided at the front end of the protective cover (11); a fixing block (10) is provided at the center position of the back of the protective cover (11); a steering wheel (3) is provided at the center position of the upper surface of the base (2); the steering wheel (3) is rotatably connected to the base (2); support columns (30) are symmetrically provided near the edge position of the upper surface of the steering wheel (3); a lifting device (4) is provided on the upper surface of the steering wheel (3); the lifting device (4) comprises a spiral column (40) that is linked to and cooperates with a drive motor (42) and an output shaft of the drive motor (42); a lifting block (31) is sleeved on the spiral column (40); the lifting block (31) is correspondingly plugged and installed with the fixing block (10).

2. The conference screen according to claim 1, characterized in that: The protective cover (11) has first fixing holes (110) at four corners of the front end surface, the fixing strip (13) has second fixing holes (130) at positions corresponding to the first fixing holes (110), and the first fixing holes (110) and the second fixing holes (130) are matched with fixing screws (131), and the fixing screws (131) are threadedly connected to the first fixing holes (110) and the second fixing holes (130).

3. The conference screen according to claim 1, characterized in that: A trapezoidal block (100) is symmetrically arranged on the rear end surface of the fixed block (10), and a trapezoidal hole (312) is provided at a front end of the lifting block (31) and at a position corresponding to the trapezoidal block (100), the width of the inner wall of the trapezoidal hole (312) matches the width of the outer wall of the trapezoidal block (100), and the trapezoidal block (100) is plugged into the trapezoidal hole (312).

4. The conference screen according to claim 1, characterized in that: A rotating hole (34) is provided at the center of the steering wheel (3), and a fixing column (340) is provided at a position corresponding to the rotating hole (34) of the base (2), wherein the fixing column (340) is rotatably connected to the rotating hole (34).

5. The conference screen according to claim 4, characterized in that: A threaded hole (32) is provided on the left side of the steering wheel (3) near the edge, and a hand screw (33) is provided on the threaded hole (32), and the hand screw (33) is threadedly connected to the threaded hole (32).

6. The conference screen according to claim 1, characterized in that: A conversion device (43) is provided between the output shaft of the drive motor (42) and the bottom of the spiral column (40), the conversion device (43) comprising a first conical tooth meshing with a second conical tooth, the first conical tooth being coaxially connected to the output shaft of the drive motor (42), and the second conical tooth being coaxially connected to the bottom of the spiral column (40).

7. The conference screen according to claim 6, characterized in that: A rectangular isolation cover (41) is provided on the upper surface of the lifting device (4), and a heat dissipation hole (410) is opened on the right side of the isolation cover (41).

8. The conference screen according to claim 1, characterized in that: A limit hole (310) is provided at a position corresponding to the lifting block (31) and the support column (30), and the limit hole (310) is slidably connected to the support column (30). A spiral hole (311) is provided at a position corresponding to the lifting block (31) and the spiral column (40), and the spiral hole (311) is threadedly connected to the spiral column (40).

9. The conference screen according to claim 1, characterized in that: Universal wheels (5) are provided on the bottom surface of the base (2) near the corners, and the universal wheels (5) are fixedly connected to the base (2) by screws.

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