CN211138793U - An easy-to-operate teaching blackboard - Google Patents

Abstract

The utility model discloses a teaching blackboard convenient to operation, comprising a main body, the upper end surface of main part is provided with projection curtain cloth device, projection curtain cloth device's rear end surface is provided with metal crate, metal crate's lower extreme surface is provided with dust collection device, one side surface of dust collection device is provided with the dust and collects the box, metal crate's front end surface is provided with the blackboard. A teaching blackboard convenient to operation, be equipped with projection curtain cloth device, dust collection device and dust collection box, through the projection curtain cloth device of its setting, can increase the practicality of device, be favorable to people to use to can pass through dust collection device, make the effectual collection of chalk dust, make things convenient for people to use, can also collect the box through the dust, clear away the chalk dust after will collecting fast, the person of facilitating the use clears up, brings better use prospect.

Description

An easy-to-operate teaching blackboard

technical field

The utility model relates to the field of teaching equipment, in particular to a teaching blackboard which is easy to operate.

Background technique

The easy-to-operate teaching blackboard is a kind of equipment to assist teachers in teaching. Its appearance can be convenient for people to use. It is not only simple in structure, but also easy to operate.

The existing easy-to-operate teaching blackboard has certain drawbacks in use. First, during use, the projection screen cannot be stored as a whole, which is inconvenient. Secondly, the chalk ash cannot be collected effectively, which has certain disadvantages. It has a certain adverse effect on people's use process. For this reason, we propose a teaching blackboard that is easy to operate.

Utility model content

The main purpose of the present invention is to provide an easy-to-operate teaching blackboard, which can effectively solve the problems in the background technology.

To achieve the above purpose, the technical scheme adopted by the present utility model is:

An easy-to-operate teaching blackboard, comprising a main body, a projection screen device is arranged on the outer surface of the upper end of the main body, a metal frame is arranged on the outer surface of the rear end of the projection screen device, and a dust is arranged on the outer surface of the lower end of the metal frame A collection device, a dust collection box is arranged on one outer surface of the dust collection device, and a blackboard is arranged on the outer surface of the front end of the metal frame.

The projection screen device is mainly beneficial to the user.

The dust collection device is mainly conducive to the collection of dust.

The dust collection box is mainly to facilitate the user to clean up the dust.

Preferably, the projection screen device includes a fixing device, a screen, a No. 1 rotating shaft, a roller and a No. 2 rotating shaft, a roller is arranged inside the projection screen device, and an outer surface of one side of the roller is provided with a roller. No. 1 rotating shaft, the other outer surface of the roller is provided with a No. 2 rotating shaft, the outer surface of the lower end of the roller is provided with a curtain, and the lower end of the curtain is provided with a fixing device.

Preferably, the dust collection device includes a sliding track, a collection port, a base and a movable brush, the outer surface of the lower end of the dust collection device is provided with a base, the outer surface of the upper end of the base is provided with a sliding track, and the sliding track A movable brush is arranged inside the sliding track, and a collection port is arranged on the outer surface of one side of the sliding track.

Preferably, the outer surface of one side of the roller is movably connected to the inner wall of the projection screen device through the No. 1 rotating shaft, and the outer surface of the other side of the roller is movably connected to the inner wall of the projection screen device through the No. 2 rotating shaft, An installation frame is arranged between the projection screen device and the metal frame, and the rear outer surface of the projection screen device is fixedly connected to the front end outer surface of the metal frame through the installation frame.

Preferably, a cross screw is provided between the sliding track and the base, the outer surface of the lower end of the sliding track is fixedly connected to the outer surface of the upper end of the base through the cross screw, and the outer surfaces of both sides of the movable brush are connected to the sliding track. The inner wall of the active connection.

Preferably, the dust collecting box comprises a No. 1 fixing block, a collecting box, a No. 2 fixing block and a mounting piece, the outer surface of the upper end of the dust collecting box is provided with a mounting piece, and one outer surface of one side of the mounting piece is provided with a mounting piece The No. 1 fixing block is provided with a No. 2 fixing block on the outer surface of the upper end of the No. 1 fixing block, and a collection box is provided on one outer surface of the No. 2 fixing block.

Compared with the prior art, the utility model has the following beneficial effects: the easy-to-operate teaching blackboard, through the projection screen device provided, can quickly unfold the screen through the fixing device under the device when needed, and increase the device Practicality, through the installed dust collection device, the movable brush can be moved to sweep the dust into the collection port, which is beneficial for people to use. The setting of the dust collection box can remove the collection box and remove the chalk dust, which is beneficial for people to clean up The whole easy-to-operate teaching blackboard has the advantages of simple structure, convenient operation and better use effect than the traditional method.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a teaching blackboard that is easy to operate according to the present invention.

FIG. 2 is an enlarged view of the projection screen device 4 in FIG. 1 of an easy-to-operate teaching blackboard of the present invention.

FIG. 3 is an enlarged view of the dust collecting device 2 in FIG. 1 of a teaching blackboard that is easy to operate according to the present invention.

FIG. 4 is an enlarged view of the dust collecting box 3 in FIG. 1 of a teaching blackboard that is easy to operate according to the present invention.

In the figure: 1. Main body; 2. Dust collection device; 3. Dust collection box; 4. Projection screen device; 5. Blackboard; 6. Metal frame; 7. Fixing device; 8. Curtain; 9. No. 1 rotating shaft; 10. Roller; 11. No. 2 rotating shaft; 12. Sliding track; 13. Collection port; 14. Base; 15. Movable brush; 16. No. 1 fixing block; 17. Collection box; 18. No. 2 fixing block ; 19. Mounting parts.

Detailed ways

In order to make the technical means, creation features, achievement goals and effects of the present invention easy to understand and understand, the present invention will be further described below with reference to the specific embodiments.

As shown in Figures 1-4, an easy-to-operate teaching blackboard includes a main body 1. The upper outer surface of the main body 1 is provided with a projection screen device 4, and the rear outer surface of the projection screen device 4 is provided with a metal frame 6. The metal frame The outer surface of the lower end of the metal frame 6 is provided with a dust collection device 2 , the outer surface of one side of the dust collection device 2 is provided with a dust collection box 3 , and the outer surface of the front end of the metal frame 6 is provided with a blackboard 5 .

The projection screen device 4 includes a fixing device 7, a screen 8, a No. 1 rotating shaft 9, a rolling shaft 10 and a No. 2 rotating shaft 11. The inside of the projection screen device 4 is provided with a roller 10, and an outer surface of one side of the roller 10 is provided with a roller. No. 9 rotating shaft, the other side outer surface of the roller 10 is provided with a No. 2 rotating shaft 11, the outer surface of the lower end of the roller 10 is provided with a curtain 8, and the lower end of the curtain 8 is provided with a fixing device 7, when in use, the fixing device is 7 Pull down and secure under the unit.

The dust collection device 2 includes a sliding track 12, a collection port 13, a base 14 and a movable brush 15. The outer surface of the lower end of the dust collection device 2 is provided with a base 14, and the outer surface of the upper end of the base 14 is provided with a sliding track 12. A movable brush 15 is provided inside, and a collection port 13 is provided on one outer surface of the sliding track 12 . When in use, the movable brush 15 can be moved to sweep dust into the collection port 13 .

It should be noted that the present invention is an easy-to-operate teaching blackboard. Before use, the user installs the projection screen device 4 , the dust collection device 2 and the dust collection box 3 to the main body 1 after installing the device in the work area. on the blackboard 5, the protective film on the blackboard 5 is removed, and when the projection screen device 4 is set, the screen can be quickly unfolded through the fixing device 7 under the device, which increases the practicability of the device. The movable brush 15 can be moved to sweep the dust into the collection port 13, which is beneficial to people's use. The dust collection box 3 provided therein can remove the collection box 17 and remove the chalk dust, which is beneficial to people's cleaning and is more practical.

The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention There will also be various changes and improvements in the new model, which all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. An easy-to-operate teaching blackboard, comprising a main body (1), characterized in that: the outer surface of the upper end of the main body (1) is provided with a projection screen device (4), and the rear end of the projection screen device (4) A metal frame (6) is arranged on the outer surface, a dust collection device (2) is arranged on the outer surface of the lower end of the metal frame (6), and a dust collection box (3) is arranged on the outer surface of one side of the dust collection device (2). ), a blackboard (5) is provided on the outer surface of the front end of the metal frame (6). 2. An easy-to-operate teaching blackboard according to claim 1, characterized in that: the projection screen device (4) comprises a fixing device (7), a screen (8), a No. 1 rotating shaft (9), a roller A shaft (10) and a No. 2 rotating shaft (11), a roller (10) is arranged inside the projection screen device (4), and a No. 1 rotating shaft (9) is arranged on an outer surface of one side of the roller (10). ), the outer surface of the other side of the roller (10) is provided with a No. 2 rotating shaft (11), and the outer surface of the lower end of the roller (10) is provided with a curtain (8), The lower end is provided with a fixing device (7). 3. An easy-to-operate teaching blackboard according to claim 1, wherein the dust collection device (2) comprises a sliding track (12), a collection port (13), a base (14) and a movable brush (15), the outer surface of the lower end of the dust collecting device (2) is provided with a base (14), the outer surface of the upper end of the base (14) is provided with a sliding track (12), and the interior of the sliding track (12) A movable brush (15) is provided, and a collection port (13) is provided on one outer surface of the sliding track (12). 4. An easy-to-operate teaching blackboard according to claim 2, characterized in that: the outer surface of one side of the roller (10) passes through the No. 1 rotating shaft (9) and the inner wall of the projection screen device (4). Actively connected, the outer surface of the other side of the roller (10) is movably connected to the inner wall of the projection screen device (4) through the second rotating shaft (11), and the projection screen device (4) is connected to the metal frame (6) An installation frame is arranged therebetween, and the outer surface of the rear end of the projection screen device (4) is fixedly connected to the outer surface of the front end of the metal frame (6) through the installation frame. 5. An easy-to-operate teaching blackboard according to claim 3, characterized in that: a cross screw is provided between the sliding track (12) and the base (14), and the lower end of the sliding track (12) is outside The surface is fixedly connected with the outer surface of the upper end of the base (14) by Phillips screws, and the outer surfaces on both sides of the movable brush (15) are movably connected with the inner wall of the sliding track (12). 6. An easy-to-operate teaching blackboard according to claim 1, wherein the dust collecting box (3) comprises a No. 1 fixing block (16), a collecting box (17), and a No. 2 fixing block (18). ) and a mounting piece (19), the outer surface of the upper end of the dust collection box (3) is provided with a mounting piece (19), and one side outer surface of the mounting piece (19) is provided with a fixing block (16), so The No. 1 fixing block (16) is provided with a No. 2 fixing block (18) on the outer surface of the upper end, and one side outer surface of the No. 2 fixing block (18) is provided with a collecting box (17).

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