Adjustable liquid crystal entity composite whiteboard for teaching

Abstract

The utility model discloses an adjustable liquid crystal entity composite whiteboard for teaching, and relates to the technical field of liquid crystal whiteboards. Comprising a supporting device, a liquid crystal white board is installed in the supporting device, the supporting device comprises a supporting frame, the liquid crystal white board is installed in a frame of the supporting frame, and a gap is reserved between the front face of the liquid crystal white board and the front face of the supporting frame. Power is transmitted through the power bin to pull the limiting sliding block, so that the entity whiteboard piece can be rolled up or cover the outer surface of the liquid crystal whiteboard, important grammar, words and other information can be written on the surface of the entity whiteboard piece for long-term storage during Russian teaching, and the entity whiteboard piece is unfolded for display when needed; and the display proportion of the liquid crystal whiteboard and the entity whiteboard sheet is adjusted as required, so that the effects that the blackboard writing information can be stored for a long time and the proportion between the liquid crystal whiteboard and the entity whiteboard sheet can be adjusted are achieved.

Description

Technical Field

[0001] The utility model discloses an adjustable liquid crystal entity composite whiteboard for teaching, which belongs to the technical field of adjustable liquid crystal whiteboards. Background Art

[0002] A whiteboard functions similarly to a blackboard. It is an erasable writing tool that is usually used for teaching, meeting discussions, or personal and family notes.

[0003] With the advancement of technology, multimedia teaching has gradually entered campuses. Because LCD whiteboards have the advantages of easy writing, easy wiping and strong display performance, traditional blackboards and whiteboards are gradually being replaced by LCD whiteboards.

[0004] Chinese Patent Publication No.: CN205375872U discloses an "Adjustable Liquid Crystal Whiteboard for Russian Teaching" comprising: an outer frame, a glass panel installed at the center of the front surface of the outer frame, a glass interlayer installed at the rear side of the glass panel, a dimming filling layer filled between the glass panel and the glass interlayer, a liquid crystal display installed at the rear side of the glass interlayer, and an image processing circuit board installed at the rear of the liquid crystal display, which can directly display teaching courseware after connecting to a computer, does not occupy additional space, does not require external projection equipment, and effectively saves classroom layout space and layout costs.

[0005] However, the above prior art has the following problems during use: the displayed information cannot be saved for a long time, and important information will disappear when the power is off. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to improve the liquid crystal whiteboard technology and provide an adjustable liquid crystal physical composite whiteboard for teaching, which adopts a solution combining a liquid crystal whiteboard with a physical whiteboard. The beneficial effect is that the blackboard information can be preserved for a long time and the ratio between the liquid crystal whiteboard and the physical whiteboard can be adjusted.

[0007] The purpose of the utility model is achieved in this way:

[0008] An adjustable liquid crystal composite whiteboard for teaching, comprising a supporting device, a liquid crystal whiteboard is installed inside the supporting device, the supporting device comprises a supporting frame, the liquid crystal whiteboard is installed in a frame of the supporting frame, and a gap is left between the front of the liquid crystal whiteboard and the front of the supporting frame;

[0009] Track grooves are provided on both upper and lower sides of the gap between the front of the liquid crystal whiteboard and the front of the support frame, through holes are provided on both left and right sides of the gap between the front of the liquid crystal whiteboard and the front of the support frame, and a physical whiteboard adjustment device with adjustable spacing is installed inside the support frame;

[0010] The physical whiteboard adjustment device comprises a whiteboard winding bin and a power bin, which are respectively mounted on the left and right sides of the support frame and communicate with the through holes on the left and right sides of the support frame, a physical whiteboard sheet is wound inside the whiteboard winding bin, and the end of the physical whiteboard sheet is fixedly connected to a limit slider, and the upper and lower ends of the limit slider are both located inside the track groove;

[0011] A motor is arranged inside the power bin, and a rotatable transmission rod is installed inside the power bin, and the transmission rod is driven by the motor. Traction columns are installed on the upper and lower sides of the whiteboard winding bin, and the transmission rod and the traction columns cooperate to support a conveyor belt. The conveyor belt is located inside the track groove, and one side of the inner wall of the conveyor belt is fixedly connected to the end of the limiting slider.

[0012] Preferably, mounting legs are fixedly connected to both sides of the back side of the support frame, and the mounting legs are L-shaped brackets.

[0013] Preferably, a liquid crystal whiteboard hanging beam is fixedly connected to the back of the support frame, and a hanging hole is provided on the liquid crystal whiteboard hanging beam, and the hanging hole is adapted to a hook on the back of the liquid crystal whiteboard to fix the liquid crystal whiteboard.

[0014] Preferably, the structure for winding the physical whiteboard sheet inside the whiteboard winding bin is a torsion spring column, which includes a vertical rod and torsion springs at both ends for applying tension, and the torsion spring column applies a pulling force backward to the physical whiteboard sheet.

[0015] Preferably, the physical whiteboard sheet is a metal sheet with toughness, and a white writing coating is sprayed on the front side of the physical whiteboard sheet.

[0016] Preferably, both upper and lower ends of the limit sliding block are provided with protrusions, the protrusions extend between the conveyor belts, and one side of the protrusions is fixedly connected to the inner wall of the conveyor belt.

[0017] Preferably, the traction columns are installed symmetrically up and down, and a distance is left between the ends of the traction columns and the side surfaces of the physical whiteboard sheet.

[0018] Beneficial effects:

[0019] First, the utility model provides a whiteboard rolling bin to store the physical whiteboard, and transmits power through the power bin to pull the limit slider, so that the physical whiteboard can be rolled up or covered on the outer surface of the liquid crystal whiteboard. When teaching Russian, important grammar, words and other information can be written on the surface of the physical whiteboard for long-term storage, and the physical whiteboard can be unfolded for display when needed, and the display ratio of the liquid crystal whiteboard and the physical whiteboard can be adjusted as needed, so that the blackboard information can be stored for a long time and the ratio between the liquid crystal whiteboard and the physical whiteboard can be adjusted.

[0020] Secondly, the utility model enables the physical whiteboard sheet to be unfolded under the traction of the motor inside the power compartment. When the entire device is not in use, the physical whiteboard sheet is fully unfolded to cover the outer surface of the liquid crystal whiteboard, thereby protecting the screen of the liquid crystal whiteboard and preventing students from damaging the screen of the liquid crystal whiteboard when playing in their spare time, thereby achieving the effect of protecting the liquid crystal whiteboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the unfolding of the physical whiteboard of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the support device of the utility model;

[0024] Figure 4 This is a schematic diagram of the back side of the support device of the utility model;

[0025] Figure 5 This is a schematic diagram of the power connection of the physical whiteboard of the utility model;

[0026] Figure 6 For this utility model Figure 5 A schematic diagram of the enlarged structure in the middle.

[0027] In the figure: 1. Support device; 101. Support frame; 102. Mounting leg; 103. LCD whiteboard hanging beam; 104. Track groove; 2. LCD whiteboard; 3. Physical whiteboard adjustment device; 301. Whiteboard winding bin; 302. Power bin; 303. Physical whiteboard sheet; 304. Limiting slider; 305. Transmission rod; 306. Traction column; 307. Conveyor belt. DETAILED DESCRIPTION

[0028] The specific implementation of the utility model will be further described in detail below with reference to the accompanying drawings.

[0029] A teaching adjustable liquid crystal physical composite whiteboard in this specific implementation manner, such as Figure 1-6 As shown, it includes a supporting device 1, a liquid crystal whiteboard 2 is installed inside the supporting device 1, and the supporting device 1 includes a supporting frame 101. The liquid crystal whiteboard 2 is installed in the frame of the supporting frame 101, and a gap is left between the front of the liquid crystal whiteboard 2 and the front of the supporting frame 101;

[0030] Track grooves 104 are provided on both upper and lower sides of the gap between the front of the liquid crystal whiteboard 2 and the front of the support frame 101, through holes are provided on both left and right sides of the gap between the front of the liquid crystal whiteboard 2 and the front of the support frame 101, and a physical whiteboard adjustment device 3 with adjustable spacing is installed inside the support frame 101;

[0031] The physical whiteboard adjustment device 3 includes a whiteboard winding bin 301 and a power bin 302, which are respectively installed on the left and right sides of the support frame 101 and communicate with the through holes on the left and right sides of the support frame 101. A physical whiteboard sheet 303 is wound inside the whiteboard winding bin 301, and the end of the physical whiteboard sheet 303 is fixedly connected to a limit slider 304, and the upper and lower ends of the limit slider 304 are both located inside the track groove 104;

[0032] A motor is arranged inside the power bin 302, and a rotatable transmission rod 305 is installed inside the power bin 302, and the transmission rod 305 is driven by the motor. Traction columns 306 are installed on the upper and lower sides inside the whiteboard winding bin 301, and the transmission rod 305 and the traction column 306 cooperate to support the transmission of a conveyor belt 307, and the conveyor belt 307 is located inside the track groove 104, and one side of the inner wall of the conveyor belt 307 is fixedly connected to the end of the limiting slider 304.

[0033] Through the above technical solution, a whiteboard rolling bin 301 is set to store the physical whiteboard sheet 303, and the power is transmitted through the power bin 302 to pull the limit slider 304, so that the physical whiteboard sheet 303 can be rolled up or covered on the outer surface of the liquid crystal whiteboard 2. When teaching Russian, because Russian is difficult to pronounce and write, important grammar, words and other information are written on the surface of the physical whiteboard sheet 303 for long-term preservation, so as to facilitate repeated display during teaching to enhance students' impression. In fact, this device is not only used for Russian teaching, but can be widely used in working environments such as meeting records, and the physical whiteboard sheet 303 can be unfolded for display when needed, and the display ratio of the liquid crystal whiteboard 2 and the physical whiteboard sheet 303 can be adjusted as needed, so that the blackboard information can be preserved for a long time and the ratio between the liquid crystal whiteboard and the physical whiteboard can be adjusted;

[0034] The physical whiteboard sheet 303 can be unfolded under the traction of the motor inside the power compartment 302. When the entire device is not in use, the physical whiteboard sheet 303 is fully unfolded to cover the outer surface of the liquid crystal whiteboard 2, thereby protecting the screen of the liquid crystal whiteboard 2 and preventing students from causing damage to the screen of the liquid crystal whiteboard 2 when playing in their spare time, thereby achieving the effect of protecting the liquid crystal whiteboard 2.

[0035] Specifically, both sides of the back side of the support frame 101 are fixedly connected with mounting legs 102 , and the mounting legs 102 are L-shaped brackets.

[0036] Through the above technical solution, the provided mounting legs 102 are used to facilitate the installation of the support frame 101 on the classroom wall, and the support of the mounting legs 102 can leave a gap between the back of the LCD whiteboard 2 and the front of the classroom, thereby improving the convenience of wiring the LCD whiteboard 2 and the heat dissipation performance.

[0037] Specifically, the back of the support frame 101 is fixedly connected with a liquid crystal whiteboard hanging beam 103 , and a hanging hole is opened on the liquid crystal whiteboard hanging beam 103 , and the hanging hole is adapted to the hook on the back of the liquid crystal whiteboard 2 to fix the liquid crystal whiteboard 2 .

[0038] Through the above technical solution, the provided liquid crystal whiteboard hanging beam 103 is used to connect and support the liquid crystal whiteboard 2, and the strength of the support frame 101 is improved through the support of the liquid crystal whiteboard hanging beam 103, so that the support frame 101 has stronger deformation resistance.

[0039] Specifically, the structure of the physical whiteboard sheet 303 wound inside the whiteboard winding bin 301 is a torsion spring column, which includes a vertical rod and torsion springs at both ends for applying tension. The torsion spring column applies a pulling force back to the physical whiteboard sheet 303 .

[0040] Through the above technical solution, the structure of winding the physical whiteboard sheet 303 inside the whiteboard winding bin 301 is a torsion spring column, so that a pulling force can be applied to the physical whiteboard sheet 303 through the torsion spring column. When the motor inside the power bin 302 applies reverse force to the physical whiteboard sheet 303, the torsion spring column can make the physical whiteboard sheet 303 be wound more smoothly.

[0041] Specifically, the physical whiteboard sheet 303 is a metal sheet with toughness, and a white writing coating is sprayed on the front side of the physical whiteboard sheet 303 .

[0042] Through the above technical solution, the physical whiteboard sheet 303 is set as a metal sheet, so that the physical whiteboard sheet 303 can be bent and rolled, and the white coating sprayed on the outer surface of the physical whiteboard sheet 303 is used to facilitate writing and wiping.

[0043] Specifically, both upper and lower ends of the limiting slider 304 are provided with protrusions, the protrusions extend between the conveyor belts 307 , and one side of the protrusions is fixedly connected to the inner wall of the conveyor belt 307 .

[0044] Through the above technical solution, protrusions are set at both ends of the limit slider 304 so that they can be connected to the inner wall of the conveyor belt 307, so that when the conveyor belt 307 is driven, the limit slider 304 is moved accordingly to achieve the purpose of pushing and pulling the physical whiteboard 303.

[0045] Specifically, the traction posts 306 are installed symmetrically up and down, and a distance is left between the ends of the traction posts 306 and the side surfaces of the physical whiteboard piece 303 .

[0046] Through the above technical solution, the symmetrically installed traction columns 306 are used to support the conveyor belt 307. In order to prevent the conveyor belt 307 from sliding, the outer surfaces of the transmission rod 305 and the traction columns 306 are provided with grooves to limit the position of the conveyor belt 307.

[0047] When in use, the physical whiteboard sheet 303 is stored by setting a whiteboard rolling bin 301, and the power bin 302 transmits power to pull the limit slider 304, so that the physical whiteboard sheet 303 can be rolled up or covered on the outer surface of the liquid crystal whiteboard 2. When teaching Russian, important grammar, words and other information can be written on the surface of the physical whiteboard sheet 303 for long-term storage, and the physical whiteboard sheet 303 can be unfolded for display when needed, and the display ratio of the liquid crystal whiteboard 2 and the physical whiteboard sheet 303 can be adjusted as needed, so that the blackboard information can be stored for a long time and the ratio between the liquid crystal whiteboard and the physical whiteboard can be adjusted;

[0048] By enabling the physical whiteboard sheet 303 to be unfolded under the traction of the motor inside the power compartment 302, when the entire device is not in use, the physical whiteboard sheet 303 is fully unfolded to cover the outer surface of the liquid crystal whiteboard 2, thereby protecting the screen of the liquid crystal whiteboard 2, preventing students from causing damage to the screen of the liquid crystal whiteboard 2 when playing in their spare time, thereby achieving the effect of protecting the liquid crystal whiteboard 2.

[0049] It should be noted that although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these specific embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable liquid crystal physical composite whiteboard for teaching, comprising a supporting device (1), wherein a liquid crystal whiteboard (2) is installed inside the supporting device (1), characterized in that: The support device (1) comprises a support frame (101), the liquid crystal whiteboard (2) is installed in a frame of the support frame (101), and a gap is left between the front surface of the liquid crystal whiteboard (2) and the front surface of the support frame (101); Track grooves (104) are provided on both upper and lower sides of the gap between the front face of the liquid crystal whiteboard (2) and the front face of the support frame (101); through holes are provided on both left and right sides of the gap between the front face of the liquid crystal whiteboard (2) and the front face of the support frame (101); and a physical whiteboard adjustment device (3) capable of adjusting the spacing is installed inside the support frame (101); The physical whiteboard adjustment device (3) comprises a whiteboard winding bin (301) and a power bin (302), the whiteboard winding bin (301) and the power bin (302) being respectively mounted on the left and right sides of the support frame (101) and communicating with the through holes on the left and right sides of the support frame (101), a physical whiteboard sheet (303) being wound inside the whiteboard winding bin (301), the end of the physical whiteboard sheet (303) being fixedly connected to a limiting slider (304), and the upper and lower ends of the limiting slider (304) being both located inside the track groove (104); A motor is arranged inside the power bin (302), and a rotatable transmission rod (305) is installed inside the power bin (302), and the transmission rod (305) is driven by the motor. Traction columns (306) are installed on both upper and lower sides inside the whiteboard winding bin (301), and the transmission rod (305) and the traction column (306) cooperate to support and transmit a conveyor belt (307), and the conveyor belt (307) is located inside the track groove (104), and one side of the inner wall of the conveyor belt (307) is fixedly connected to the end of the limiting slider (304).

2. The adjustable liquid crystal physical composite whiteboard for teaching according to claim 1, characterized in that: Both sides of the back side of the support frame (101) are fixedly connected with mounting legs (102), and the mounting legs (102) are L-shaped brackets.

3. The adjustable liquid crystal physical composite whiteboard for teaching according to claim 1, characterized in that: The back of the support frame (101) is fixedly connected to a liquid crystal whiteboard hanging beam (103), and the liquid crystal whiteboard hanging beam (103) is provided with a hanging hole, which is adapted to fit a hook on the back of the liquid crystal whiteboard (2) to fix the liquid crystal whiteboard (2).

4. The adjustable liquid crystal physical composite whiteboard for teaching according to claim 1, characterized in that: The structure of the whiteboard winding bin (301) winding the solid whiteboard sheet (303) is a torsion spring column, which comprises a vertical rod and torsion springs at both ends for applying tension, and the torsion spring column applies a pulling force backward to the solid whiteboard sheet (303).

5. The adjustable liquid crystal physical composite whiteboard for teaching according to claim 1, characterized in that: The physical whiteboard sheet (303) is a metal sheet with toughness, and a white writing coating is sprayed on the front side of the physical whiteboard sheet (303).

6. The adjustable liquid crystal physical composite whiteboard for teaching according to claim 1, characterized in that: The upper and lower ends of the limit slider (304) are both provided with protrusions, the protrusions extend between the conveyor belts (307), and one side of the protrusions is fixedly connected to the inner wall of the conveyor belt (307).

7. The adjustable liquid crystal physical composite whiteboard for teaching according to claim 1, characterized in that: The traction columns (306) are installed symmetrically up and down, and a distance is left between the ends of the traction columns (306) and the side surfaces of the physical whiteboard sheet (303).

Images