CN203766325U - 3D (three dimensional) curtain blackboard - Google Patents

Abstract

The utility model belongs to the field of teaching tools and discloses a 3D (three dimensional) curtain blackboard. The curtain blackboard comprises a curtain blackboard body, 3D projectors, key groups, cables and a capacitive writing board, wherein the curtain blackboard body and the 3D projectors are fixedly installed on a wall, one 3D projector is installed on each of the left side, the right side and the lower side of the curtain blackboard body, concave guide rail grooves are formed in opposite edges on left and right sides of a curtain, which is close to the curtain blackboard body, of the 3D projector, the key groups are installed on left or right sides of the 3D projectors, and the 3D projectors are electrically connected with the capacitive writing board fixedly mounted on a desk top through the cables. The 3D curtain blackboard is applied to different occasions and has the advantages of convenience in use, environment friendliness, high efficiency and capability of switching between the 2D effect and the 3D effect.

Description

A 3D curtain blackboard

technical field

The utility model belongs to the field of teaching appliances, in particular to a 3D curtain blackboard whose projection comes from a writing board.

Background technique

At present, there are many abstract three-dimensional graphics analysis in the teaching of mathematics geometry, but the general projector can only project two-dimensional images, which causes difficulties in understanding for those students who are weak in three-dimensional thinking, making them feel that learning geometry is relatively difficult. strenuous. And there are mainly two kinds of teaching tools used in classrooms and various venues. One is a traditional blackboard, and the other is a general projector based on projecting pictures. But they all have various shortcomings. Although the blackboard is simple to manufacture and the cost is relatively low, the dust pollution is serious, which brings long-term serious harm to the lecturers, and does not meet the environmental protection requirements. Although the projector solves the harm caused by the blackboard, it is relatively dull to write on it, and the lectures cannot arouse the interest of the listeners, and it is easy to cause visual fatigue to people. Especially in the early morning, people are still in a state of not waking up. Using a projector to give lectures can easily make people drowsy and distracted.

Utility model content

The utility model aims at overcoming the defects of the prior art, and provides a 3D curtain blackboard to realize convenient use and good visual effect. It has the advantages of convenient use, environmental protection and high efficiency, and the ability to switch between two-dimensional and three-dimensional effects.

The technical scheme of the utility model is as follows: a 3D curtain blackboard, including the main body of the curtain blackboard, a 3D projector, a key set, a cable, and a capacitor writing board. The main body of the curtain blackboard and the 3D projector are fixedly installed on the wall. A 3D projector is respectively installed on the side, the right side and the lower side. The 3D projector is respectively provided with a concave guide rail groove on the opposite side of the left and right sides of the screen close to the main body of the screen blackboard. The button group and the 3D projector are electrically connected with the capacitive writing board fixed on the desktop through cables.

The main body of the curtain blackboard is a projector curtain, the size of which varies according to different applicable occasions, and is hung on the wall.

Each of the 3D projectors 2 is cuboid, the length of the 3D projector on the lower side of the main body of the blackboard is equal to the length of the main body of the blackboard, and the length of the 3D projector on the left or right side of the main body of the blackboard is equal to the width of the main body of the blackboard.

A 3D projection mirror is installed on the 3D projector for projecting the three-dimensional signal from the writing board onto the projector screen.

The concave guide rail groove is perpendicular to the ground. The 3D projector screen can be unfolded from top to bottom through the concave guide rail groove, and the 3D projector screen can be fixed.

The button group is composed of four buttons, which are distributed vertically. Button one is the button to unfold the curtain, and button two is the button to open the projectors on both sides of the curtain. Pressing this button only turns on the projectors on both sides to realize a general two-dimensional display. Signal projection; button 3 is the button to fully open the 3D projector, press this button and the projectors on three sides will be turned on at the same time to realize the conversion of 2D signals to 3D signals and project them on the screen; button 4 is the button to close the screen.

Compared with the prior art, the utility model has the following beneficial effects:

The multi-purpose curtain blackboard of the utility model is suitable for different occasions, has simple structure, convenient use, low cost, environmental protection and high efficiency, fully utilizes the accuracy of the capacitive writing board and the three-dimensional effect of the 3D projector, and can realize the balance between two-dimensional and three-dimensional effects. convert. It not only avoids serious dust pollution of traditional blackboards, achieves good visual effects, but also overcomes the defects of general projector equipment that can only read but not write and visual fatigue. It has the advantages of strong scalability and wide application occasions.

Description of drawings

Fig. 1 is a schematic diagram of the main body of the 3D curtain blackboard of the present invention.

Fig. 2 is a schematic diagram of the capacitive writing board of the utility model 3D curtain blackboard.

Fig. 3 is the use effect diagram of the utility model 3D curtain blackboard.

In conjunction with the accompanying drawings, the marks of the accompanying drawings in the implementation of the utility model are as follows:

                                                                       

Detailed ways

The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.

As shown in Fig. 1, Fig. 2 and Fig. 3, a 3D curtain blackboard comprises a curtain blackboard main body 1, a 3D projector 2, a button group 3, a cable 4, a capacitive writing board 5, a curtain blackboard main body 1 and a 3D projector 2 Fixedly installed on the wall, the curtain blackboard main body 1 is a projector curtain, its size varies according to different applicable occasions, and is hung on the wall. A 3D projector 2 is respectively installed on the left side, the right side and the lower side of the blackboard main body 1 of the curtain. Each 3D projector 2 is a cuboid. The length of the 3D projector on the left or right is equal to the width of the main body of the curtain blackboard. The 3D projector 2 is equipped with a 3D projection mirror for projecting the three-dimensional signal from the writing board onto the projector screen. The 3D projector 2 is respectively provided with concave guide rail grooves 6 on the opposite sides of the left and right sides of the screen close to the curtain blackboard main body 1, and the concave guide rail grooves 6 are perpendicular to the ground. The 3D projector screen can be unfolded from top to bottom through the concave guide rail groove, and the 3D projector screen can be fixed. A button group 3 is installed on the left or right side of the 3D projector 2, and the 3D projector 2 is electrically connected with a capacitive writing board 5 fixed on the desktop through a cable 5. The button group is composed of four buttons, which are distributed vertically. Button one is the button to unfold the curtain, and button two is the button to open the projectors on both sides of the curtain. Pressing this button only turns on the projectors on both sides to realize a general two-dimensional display. Signal projection; button 3 is the button to fully open the 3D projector, press this button and the projectors on three sides will be turned on at the same time to realize the conversion of 2D signals to 3D signals and project them on the screen; button 4 is the button to close the screen.

The multi-purpose curtain blackboard of the utility model is suitable for different occasions, has simple structure, convenient use, low cost, environmental protection and high efficiency, fully utilizes the accuracy of the capacitive writing board and the three-dimensional effect of the 3D projector, and can realize the balance between two-dimensional and three-dimensional effects. convert. It not only avoids serious dust pollution of traditional blackboards, achieves good visual effects, but also overcomes the defects of general projector equipment that can only read but not write and visual fatigue. It has the advantages of strong scalability and wide application occasions.

The above is only to illustrate the implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, any modification, equivalent replacement, Improvements and the like should all be included within the protection scope of the present utility model.

Claims (6)

1. A 3D curtain blackboard, comprising a curtain blackboard main body, a 3D projector, a button group, a cable, and a capacitor writing board, is characterized in that: the curtain blackboard main body and the 3D projector are fixedly installed on the body of wall, the left side of the curtain blackboard main body, A 3D projector is respectively installed on the right side and the lower side. The 3D projector has concave guide rail grooves on the opposite sides of the left and right sides of the screen close to the main body of the screen blackboard, and a button group is installed on the left or right side of the 3D projector. , the 3D projector is electrically connected with the capacitive writing board fixed on the desktop through a cable. 2. The 3D screen blackboard according to claim 1, wherein the main body of the screen blackboard is a projector screen. 3. 3D curtain blackboard according to claim 1, is characterized in that, each described 3D projector is a cuboid, and the length of the 3D projector on the lower side of the curtain blackboard main body is equal to the length of the curtain blackboard main body, and the left side of the curtain blackboard main body Or the length of the 3D projector on the right is equal to the width of the main body of the curtain blackboard. 4. The 3D curtain blackboard according to claim 1, wherein a 3D projection mirror is installed on the 3D projector. 5. The 3D curtain blackboard according to claim 1, wherein the concave guide rail groove is perpendicular to the ground. 6. The 3D curtain blackboard according to claim 1, wherein the button group is composed of four buttons, and is vertically distributed, button one is a curtain unfolding button, and button two is a projector start button on both sides of the curtain , button three is the button to fully open the 3D projector, and button four is the button to close the curtain.