CN202641149U - Device for alternating teaching blackboard and teaching whiteboard - Google Patents

Abstract

The utility model relates to a teaching board device capable of alternating black and white, which is characterized in that: the teaching board device capable of alternating black and white includes blackboards, white boards, guide rails, pulleys, and steel wire ropes; The teaching board device also includes a fixing device for the blackboard, and an inner slide groove is provided on the side of the guide rail close to the blackboard. Compared with the ordinary single blackboard, the black and white alternate teaching board device provided by the utility model is a kind of which the black and white large teaching boards are suspended by guide rails, pulleys and steel wire ropes, and can be alternately lifted up and down by hand. device. When you need to write chalk characters, pull down the blackboard (raise the whiteboard at the same time); if you want to write with water pen, pull down the whiteboard (raise the blackboard at the same time). The teaching whiteboard can also be used as a projection screen in the classroom. The teaching board device that can be alternated between black and white can bring convenience to the teacher's classroom teaching and improve teaching efficiency.

Description

A teaching board device that can alternate black and white

technical field

The utility model relates to a pair of trousers, in particular to a black and white alternate teaching board device which can bring convenience to teachers' classroom teaching and improve teaching efficiency.

Background technique

Electronic whiteboards are widely used in teaching. Electronic whiteboards can realize touch operation of computers, dust-free writing, random annotations, remote communication, instant storage and printing, free interception and capture of images, and unique "optical erasing" Presentation mode, media picture browsing, screen pulling, electronic drawing board function, automatic recording, storage, and the image of the operating screen. Electronic whiteboard is a new type of teaching and demonstration tool, which has been increasingly used in teaching, training, teleconferencing and other fields. However, in existing teaching places, blackboards and electronic whiteboards are often used alternately. In traditional classrooms, the position of the blackboard is fixed, and the electronic whiteboard will be installed on the blackboard, making it more difficult to install the electronic whiteboard. It also affects the aesthetics of the equipment layout in the classroom.

The traditional application method is: the blackboard and the electronic whiteboard are used separately, which takes up a large classroom space and is inconvenient to use. At the same time, there are problems such as inconvenient disassembly of the electronic whiteboard and flying chalk dust.

Utility model content

In view of the above problems, the main purpose of this utility model is to provide a teaching board device that can be alternately black and white, which can bring convenience to the teacher's classroom teaching and improve teaching efficiency.

The utility model solves the above-mentioned technical problems through the following technical solutions: a teaching board device capable of alternating black and white, the teaching board device capable of alternating black and white includes a blackboard, a whiteboard, guide rails, pulleys and steel wire ropes, The blackboard and the whiteboard are connected by wire ropes that are movable on the pulleys. The blackboard and the whiteboard are installed in the guide rails. The teaching board device that can alternate between black and white also includes a fixing device for the blackboard. The guide rail is close to the blackboard. There is provided with the inside slide groove.

The positive and progressive effect of the utility model is that the teaching board device that can alternate black and white provided by the utility model has the following advantages: compared with the ordinary single blackboard, the teaching board device that can alternate black and white provided by the utility model is A device that hangs the black and white large teaching boards through guide rails, pulleys, and wire ropes, and can be manually controlled up and down alternately. When you need to write chalk characters, pull down the blackboard (raise the whiteboard at the same time); if you want to write with water pen, pull down the whiteboard (raise the blackboard at the same time). The teaching whiteboard can also be used as a projection screen in the classroom. The teaching board device that can be alternated between black and white can bring convenience to the teacher's classroom teaching and improve teaching efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a left side view of Fig. 1 .

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific illustrations.

Fig. 1 is a schematic structural view of the utility model, and Fig. 2 is a left side view of Fig. 1, as shown in Fig. 1-2: the teaching board device provided by the utility model that can be alternately black and white includes a blackboard 2, a whiteboard 1, and guide rails 3. The pulley 4 and the steel wire rope 5, the blackboard 2 and the whiteboard 1 are connected by the steel wire rope 5 that is movably installed on the pulley 4, the blackboard 2 and the whiteboard 1 are all installed in the guide rail 3, and the teaching board device that can alternate between black and white also includes As for the fixing device of the blackboard 2, the side of the guide rail 3 close to the blackboard 2 is provided with an inner slide groove.

Current school classrooms either use blackboards and write with chalk; or use whiteboards to write with water pens. The two cannot be used universally, which sometimes causes inconvenience to the teacher's teaching.

A teaching board device that can be alternately black and white is a device that hangs each of the black and white teaching boards through guide rails, pulleys, and wire ropes, and can be manually controlled up and down alternately. When you need to write chalk characters, pull down the blackboard (raise the whiteboard at the same time); if you want to write with water pen, pull down the whiteboard (raise the blackboard at the same time). The teaching whiteboard can also be used as a projection screen in the classroom.

The teaching board device that can be alternated between black and white can bring convenience to the teacher's classroom teaching and improve teaching efficiency.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model, and the claimed protection scope of the utility model is defined by the appended claims and their equivalents.

Claims (1)

1. A teaching board device capable of alternating black and white, characterized in that: the teaching board device capable of alternating black and white includes a blackboard (2), a whiteboard (1), guide rails (3), pulleys (4) and The steel wire rope (5), the blackboard (2) and the whiteboard (1) are connected by the steel wire rope (5) movably installed on the pulley (4), and the blackboard (2) and the whiteboard (1) are installed on the guide rail (3) In addition, the teaching board device that can be alternated between black and white also includes a fixing device for the blackboard (2), and the side of the guide rail (3) close to the blackboard (2) is provided with an inner sliding groove.

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