LED display screen for multimedia teaching

Abstract

The invention discloses an LED display screen for multimedia teaching, and belongs to the technical field of display screens, the LED display screen comprises a display screen module main body, the display screen module main body is composed of a display screen mounting rear cover, a display screen mounting frame plate and an LED display module, the surface of the LED display module is provided with a touch protection film, and winding sleeves are arranged on the two sides of the display screen mounting frame plate; the winding sleeves located on the two sides are connected with the two ends of the touch protection film correspondingly, and a winding tensioning buffering wheel set used for adjusting the distance of the touch protection film is arranged on the display screen installation frame plate. A display mode and a protection mode are set according to different states of the display screen in teaching use, a touch protection film on the surface of the display screen can be controlled to provide a touch screen anti-scratch function in the display mode by switching the winding and tensioning buffer wheel in the different modes, and the touch screen can be protected from being scratched by utilizing the toughness of the touch protection film in the protection mode. The impact force generated by damage is absorbed and buffered, so that the display screen is effectively protected.

Description

Technical Field

[0001] The invention relates to the technical field of display screens, and in particular to an LED display screen for multimedia teaching. Background Art

[0002] Multimedia teaching refers to the process of teaching, in which, according to the teaching objectives and the characteristics of the teaching objects, modern teaching media are rationally selected and used through teaching design, and organically combined with traditional teaching methods, so as to jointly participate in the whole teaching process, act on students with a variety of media information, form a reasonable teaching process structure, and achieve the optimal teaching effect.

[0003] The commonly used equipment in multimedia teaching is LED display screen. In order to meet the display needs of teaching, the size of LED display screen is often set to be large. In the actual use process, in order to facilitate the touch screen operation of the teacher, the LED display screen will be designed to be located at a lower position. After the LED display screen is used for teaching, the display screen is only turned off, and there is no way to protect the display screen. Students who play and fight in class are very likely to damage the display screen, making the display screen unusable. Therefore, some display screens are provided with storage devices, which makes the use and installation of the display screen very limited, and occupies a large multimedia classroom space, which will also affect the use effect of the multimedia teaching LED display screen. Based on this, a LED display screen for multimedia teaching is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose an LED display screen for multimedia teaching.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A LED display screen for multimedia teaching, comprising a display screen module body and a conversion support assembly thereof, wherein the display screen module body is composed of a display screen mounting back cover, a display screen mounting frame plate and an LED display module, a touch protection film is arranged on the surface of the LED display module, winding sleeves are arranged on both sides of the display screen mounting frame plate, and the winding sleeves located on both sides are respectively connected to the two ends of the touch protection film, a winding tensioning buffer wheel group for adjusting the distance of the touch protection film is arranged on the display screen mounting frame plate, and a spring buffer connecting member and a magnetically controlled rotation damping member are arranged inside the winding tensioning buffer wheel group;

[0007] The conversion support assembly includes a mobile support base used in the mobile mode and a mounting plate used in the fixed mode. The display screen installation rear cover back plate is provided with a conversion plug-in plate detachably connected to the mounting plate and the mobile support base.

[0008] Preferably, a state adjustment component for controlling the rotation of the winding sleeve is arranged inside the display screen mounting frame plate, and an installation groove for installing the state adjustment component is opened inside the display screen mounting frame plate. The state adjustment component includes two dual-axis drive motors arranged in the installation groove, and both ends of the dual-axis drive motor are fixedly connected with a drive worm shaft.

[0009] Preferably, a vertical rotating shaft is fixedly connected to the inner wall of the winding sleeve, both ends of the vertical rotating shaft pass through the mounting groove and are fixedly connected to a driving worm gear, and the driving worm gear is meshingly connected to the driving worm shaft.

[0010] Preferably, the winding tensioning buffer wheel group includes a "U"-shaped support, both ends of the "U"-shaped support are connected to connecting end seats through spring buffer connectors, and the two connecting end seats are commonly connected to an adjusting roller that is in direct contact with the touch protection film.

[0011] Preferably, the spring buffer connector includes sliding limit grooves opened at both ends of the "U"-shaped support, the connection end seat is located in the sliding limit groove, the side wall of the connection end seat is fixedly connected with a spring buffer block, and the spring buffer block is fixedly connected to the side wall of the "U"-shaped support through a resisting spring.

[0012] Preferably, the magnetron rotation damping member comprises a plurality of assembly openings opened on the display screen mounting frame plate, a magnetron spindle body is fixedly connected in the assembly opening, a plurality of magnetron adjustment rings are rotatably connected to the outer wall of the magnetron spindle body, and the plurality of magnetron adjustment rings are fixedly connected to the side wall of the "U"-shaped support.

[0013] Preferably, the magnetic control spindle body has two arc-shaped magnetic control ports that are arranged opposite to each other, the magnetic control adjustment ring is connected to an arc-shaped magnetic control column located in the arc-shaped magnetic control port through a connecting rod, and the arc-shaped magnetic control column is connected to the inner wall of the arc-shaped magnetic control port through a reset spring;

[0014] The inner wall of the arc-shaped magnetic control port is fixedly connected with an electromagnetic seat, and the end of the arc-shaped magnetic control column is provided with a magnetic repulsion seat which magnetically repels the electromagnetic seat.

[0015] Preferably, the movable support seat is provided with an insertion interface for installing the conversion splicing board, the installation plate is provided with an installation slot, and the side wall of the conversion splicing board is provided with an installation socket adapted to the installation slot.

[0016] Preferably, both the conversion plug board and the mounting socket are provided with locking pieces.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention is provided with a display mode and a protection mode for the display screen in different states of use for teaching. By switching the winding tension buffer wheel between different modes, the touch protection film on the surface of the display screen can be controlled to provide a touch screen scratch protection function in the display mode. In the protection mode, the toughness of the touch protection film is utilized to absorb and buffer the impact force caused by the damage, thereby achieving effective protection of the display screen.

[0019] 2. The present invention sets a winding tensioning buffer wheel on the display screen mounting frame plate, and switches the state according to different use environments of the display screen. In the display mode, the touch protection film can be close to the display screen to ensure the teaching and playback effect. In the protection mode, the touch protection film is kept away from the display screen to provide space for buffering, and the impact force is absorbed by the spring buffer connector in the winding tensioning buffer wheel, so that the LED display screen can withstand greater impact force and improve the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the assembly structure of an LED display screen for multimedia teaching proposed by the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 3 This is a schematic diagram of the main structure of an LED display screen for multimedia teaching proposed by the present invention;

[0023] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0024] Figure 5 A schematic diagram of a state of a LED display screen for multimedia teaching in a protection mode proposed by the present invention;

[0025] Figure 6 This is a structural schematic diagram of a winding tensioning buffer wheel group in a multimedia teaching LED display screen proposed by the present invention;

[0026] Figure 7 The present invention is a schematic diagram of the cross-sectional structure of a magnetically controlled rotation damping component in an LED display screen for multimedia teaching proposed by the present invention.

[0027] In the figure: 1. Display screen installation back cover; 2. Display screen installation frame plate; 3. LED display module; 4. Touch protection film; 5. Winding sleeve; 6. Movable support seat; 7. Mounting plate; 8. Conversion plugging plate; 9. Dual-axis drive motor; 10. Drive worm shaft; 11. Vertical shaft; 12. Drive worm gear; 13. "U"-shaped support; 14. Connecting end seat; 15. Adjusting roller; 16. Resistance spring; 17. Magnetically controlled spindle body; 18. Magnetically controlled adjustment ring; 19. Arc-shaped magnetically controlled port; 20. Arc-shaped magnetically controlled column; 21. Connecting support rod; 22. Electromagnetic seat; 23. Magnetic repulsion seat; 24. Plug interface; 25. Installing socket. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 indirectly connected 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.

[0031] Example, see Figure 1-Figure 7, a multimedia teaching LED display screen, including a display screen module body and a conversion support assembly thereof, the display screen module body is composed of a display screen mounting back cover 1, a display screen mounting frame plate 2 and an LED display module 3, the display screen module body is a prior art, and no further details are given here, a touch protection film 4 is arranged on the surface of the LED display module 3, winding sleeves 5 are arranged on both sides of the display screen mounting frame plate 2, and the winding sleeves 5 located on both sides are respectively connected to the two ends of the touch protection film 4, and the setting of the winding sleeve 5 can realize the control of the tension of the touch protection film 4 in the protection mode, so as to ensure that the touch protection film 4 is in a tight state in the protection mode, and ensure the protection of the LED display module 3, and in the display mode, the touch protection film 4 attached to the surface of the LED display module 3 can prevent scratches and extend the service life;

[0032] Furthermore, a state adjustment component for controlling the rotation of the winding sleeve 5 is arranged inside the display screen mounting frame 2, and an installation groove for installing the state adjustment component is opened inside the display screen mounting frame 2. The state adjustment component includes two dual-axis drive motors 9 arranged in the installation groove. The dual-axis drive motors 9 are existing technologies and can realize synchronous rotation of the drive worm shafts 10 at both ends. Both ends of the dual-axis drive motor 9 are fixedly connected with the drive worm shafts 10.

[0033] A vertical rotating shaft 11 is fixedly connected to the inner wall of the winding sleeve 5 . Both ends of the vertical rotating shaft 11 penetrate into the mounting groove and are fixedly connected to a driving worm gear 12 . The driving worm gear 12 is meshedly connected to the driving worm shaft 10 .

[0034] It is worth noting that the cooperation between the driving worm shaft 10 and the driving worm wheel 12 can achieve a one-way self-locking effect, so as to ensure the tensioning effect of the winding sleeve 5 on the touch protection film 4 .

[0035] The display screen mounting frame plate 2 is provided with a winding tensioning buffer wheel set for adjusting the distance of the touch protection film 4, and a spring buffer connector and a magnetically controlled rotation damping member are provided inside the winding tensioning buffer wheel set;

[0036] Furthermore, the winding tensioning buffer wheel group includes a "U"-shaped support 13, both ends of the "U"-shaped support 13 are connected to connecting end seats 14 through spring buffer connectors, and the two connecting end seats 14 are commonly connected to an adjusting roller 15 that is in direct contact with the touch protection film 4.

[0037] The spring buffer connector includes sliding limit grooves opened at both ends of the "U"-shaped support 13, the connecting end seat 14 is located in the sliding limit groove, and the side wall of the connecting end seat 14 is fixedly connected with a spring buffer block, which is fixedly connected to the side wall of the "U"-shaped support 13) through a resisting spring 16.

[0038] By setting the spring buffer connector, the deformation of the resisting spring 16 can be utilized to absorb the impact force and withstand the tension generated by the touch protection film 4, thereby achieving the effect of buffering and absorbing the impact force when an external object collides.

[0039] The magnetron rotation damping member includes a plurality of assembly openings opened on the display screen mounting frame plate 2, the assembly openings are located at the diagonal positions, a magnetron spindle body 17 is fixedly connected in the assembly openings, a plurality of magnetron adjustment rings 18 are rotatably connected to the outer wall of the magnetron spindle body 17, and the plurality of magnetron adjustment rings 18 are fixedly connected to the side wall of the "U"-shaped support 13.

[0040] Furthermore, there are two arc-shaped magneto-control ports 19 arranged opposite to each other in the magneto-control spindle body 17, and the magneto-control adjustment ring 18 is connected to an arc-shaped magneto-control column 20 located in the arc-shaped magneto-control port 19 through a connecting rod 21, and the arc-shaped magneto-control column 20 is connected to the inner wall of the arc-shaped magneto-control port 19 through a reset spring;

[0041] An electromagnetic seat 22 is fixedly connected to the inner wall of the arc-shaped magnetic control port 19 , and a magnetic repulsion seat 23 that magnetically repels the electromagnetic seat 22 is disposed at the end of the arc-shaped magnetic control column 20 .

[0042] It is worth noting that the electromagnetic base 22 is powered on together with the LED display module 3. The electromagnetic base 22 is powered on to generate magnetism, which causes the magnetic repulsion base 23 to drive the arc-shaped magnetic control column 20 to move, and the magnetic control adjustment ring 18 is rotated, so that the winding tensioning buffer wheel group originally in a perpendicular position to the surface of the LED display module 3 is rotated to both sides and is in a state of being horizontal with the LED display module 3 (such as Figure 5 As shown), the touch protection film 4 and the LED display module 3 are closely fitted to meet the touch screen control requirements of the LED display module 3;

[0043] In the protection mode, the winding tensioning buffer wheel group is perpendicular to the LED display module 3, which will cause a larger gap between the touch protection film 4 and the LED display module 3. The existence of the gap can create a larger buffer space when foreign objects hit or damage the display screen, thereby ensuring the safety of the display screen.

[0044] The conversion support assembly includes a mobile support base 6 used in mobile mode and a mounting plate 7 used in fixed mode. The back panel of the display screen installation rear cover 1 is provided with a conversion plug-in plate 8 which is detachably connected to the mounting plate 7 and the mobile support base 6. Different installation methods can realize different display requirements of the display screen.

[0045] The mobile support seat 6 is provided with an insertion port 24 for installing the conversion splice board 8, the installation disk 7 is provided with an installation slot, and the side wall of the conversion splice board 8 is provided with an installation socket 25 compatible with the installation slot. The conversion splice board 8 and the installation socket 25 are both provided with locking pieces, which are commonly used detachable conversion structures and are prior art, and will not be described in detail here.

[0046] The present invention has two modes, display mode and protection mode, according to the use state, corresponding to the use state and the non-use state respectively;

[0047] Display mode: When the LED display screen is turned on for multimedia teaching, the electromagnetic seat 22 inside the magnetically controlled rotating damping member will be powered on at the same time. When the electromagnetic seat 22 is energized, the magnetically repelling seat 23 that is magnetically repelled therefrom will drive the arc-shaped magnetically controlled column 20 away, and drive the magnetically controlled adjusting ring 18 connected thereto through the connecting support rod 21 to rotate. The winding tensioning buffer wheel group connected to the magnetically controlled adjusting ring 18 will rotate from a rotation angle perpendicular to the display screen mounting frame plate 2 to both sides of the display screen mounting frame plate 2. During the rotation process, the touch protection film 4 that was originally in the protection mode and away from the LED display module 3 will be close to the LED display module 3 and gradually fit together. In the project where the touch protection film 4 is close to the LED display module 3, the clarity of the image will gradually improve, thereby meeting the needs of video display, and when the teacher needs to touch the LED display module 3, the touch screen control of the LED display module 3 can be achieved when the touch protection film 4 is touched, thereby meeting the use needs during teaching;

[0048] Protection mode: When the LED display screen is closed and not in use, the electromagnetic seat 22 is powered off and demagnetized. Under the action of the reset spring, the arc-shaped magnetic control column 20 is reset, and the arc-shaped magnetic control column 20 drives the magnetic control adjustment ring 18 to rotate so that the winding tension buffer wheel group will rotate from both sides of the display screen installation frame plate 2 to a state perpendicular to the display screen installation frame plate 2. In this process, the touch protection film 4 that was originally in the display mode and close to the LED display module 3 will be moved away, and a buffer space will be reserved for impact. According to the change in the tightness of the touch protection film 4 caused by the change process, the dual-axis drive motor 9 drives the drive worm shaft 10 to rotate according to the preset rotation circle speed, so that the winding sleeve 5 connected by the drive worm wheel 12 and the vertical shaft 11 is rotated to tighten the touch protection film 4 to ensure that the touch protection film 4 is in a protective state;

[0049] When the LED display module 3 is hit or damaged by foreign objects, the touch protection film 4 on the outermost layer will first contact the foreign objects and bear the impact force. The touch protection film 4 itself has the elasticity of the material, which will absorb part of the impact energy and transfer the impact energy to the winding tensioning buffer wheel group on both sides through tension. At this time, the adjustment rollers 15 arranged on both sides in contact with the touch protection film 4 will bear the tension generated by the touch protection film 4, so that the spring buffer connector arranged inside will contract the adjustment roller 15, and utilize the deformation of the resistance spring 16 to absorb the impact force, thereby avoiding damage to the LED display module 3 inside the touch protection film 4.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A LED display screen for multimedia teaching, characterized in that: The invention comprises a display screen module body and a conversion support component thereof, wherein the display screen module body is composed of a display screen mounting back cover (1), a display screen mounting frame plate (2) and an LED display module (3), a touch protection film (4) is arranged on the surface of the LED display module (3), winding sleeves (5) are arranged on both sides of the display screen mounting frame plate (2), and the winding sleeves (5) located on both sides are respectively connected to the two ends of the touch protection film (4), and a winding tensioning buffer wheel group for adjusting the distance of the touch protection film (4) is arranged on the display screen mounting frame plate (2), and a spring buffer connecting member and a magnetically controlled rotation damping member are arranged inside the winding tensioning buffer wheel group; The conversion support assembly comprises a mobile support seat (6) used in a mobile mode and a mounting plate (7) used in a fixed mode, and the back plate of the display screen mounting rear cover (1) is provided with a conversion plug-in plate (8) which is detachably connected to the mounting plate (7) and the mobile support seat (6).

2. A multimedia teaching LED display according to claim 1, characterized in that: A state adjustment component for controlling the rotation of the winding sleeve (5) is arranged inside the display screen installation frame (2), and a mounting groove for installing the state adjustment component is provided inside the display screen installation frame (2). The state adjustment component includes two dual-axis drive motors (9) arranged in the mounting groove, and both ends of the dual-axis drive motor (9) are fixedly connected to a drive worm shaft (10).

3. A multimedia teaching LED display according to claim 2, characterized in that: A vertical rotating shaft (11) is fixedly connected to the inner wall of the winding sleeve (5), and both ends of the vertical rotating shaft (11) pass through the mounting groove and are fixedly connected to a driving worm wheel (12), and the driving worm wheel (12) is meshedly connected to the driving worm shaft (10).

4. The LED display screen for multimedia teaching according to claim 1, characterized in that: The winding tensioning buffer wheel assembly comprises a "U"-shaped support (13), both ends of the "U"-shaped support (13) are connected to connecting end seats (14) via spring buffer connectors, and the two connecting end seats (14) are commonly connected to an adjusting roller (15) that is in direct contact with the touch protection film (4).

5. A multimedia teaching LED display according to claim 4, characterized in that: The spring buffer connection member comprises sliding limit grooves formed at both ends of a U-shaped support (13), the connection end seat (14) being located in the sliding limit grooves, the side wall of the connection end seat (14) being fixedly connected with a spring buffer block, and the spring buffer block being fixedly connected to the side wall of the U-shaped support (13) via a resisting spring (16).

6. A multimedia teaching LED display according to claim 5, characterized in that: The magnetron rotation damping member comprises a plurality of assembly openings provided on a display screen mounting frame plate (2), a magnetron spindle body (17) being fixedly connected in the assembly opening, a plurality of magnetron adjustment rings (18) being rotationally connected to an outer wall of the magnetron spindle body (17), and the plurality of magnetron adjustment rings (18) being fixedly connected to a side wall of a "U"-shaped support (13).

7. The LED display screen for multimedia teaching according to claim 6, characterized in that: The magnetron main shaft body (17) has two arc-shaped magnetron ports (19) arranged opposite to each other, the magnetron adjustment ring (18) is connected to an arc-shaped magnetron column (20) located in the arc-shaped magnetron port (19) via a connecting rod (21), and the arc-shaped magnetron column (20) is connected to the inner wall of the arc-shaped magnetron port (19) via a reset spring; The inner wall of the arc-shaped magnetic control port (19) is fixedly connected to an electromagnetic seat (22), and the end of the arc-shaped magnetic control column (20) is provided with a magnetic repulsion seat (23) that magnetically repels the electromagnetic seat (22).

8. The LED display screen for multimedia teaching according to claim 1, characterized in that: The movable support seat (6) is provided with an insertion interface (24) for installing the conversion plug board (8), the installation plate (7) is provided with an installation slot, and the side wall of the conversion plug board (8) is provided with an installation socket (25) adapted to the installation slot.

9. The LED display screen for multimedia teaching according to claim 8, characterized in that: The conversion plug-in plate (8) and the installation socket (25) are both provided with locking pieces.

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