JP2016159627A - Push/pull blackboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a push-pull blackboard.SOLUTION: A push/pull blackboard includes an outer frame, a movable backboard, and a multimedia display screen disposed in the outer frame, and is characterized in that the outer frame has a sliding surface therein, the movable blackboard is provided in the sliding surface, the multimedia display screen is fixed to the inside of the outer frame by using a circular-arc elastic fixing sheet, and disposed behind the movable blackboard.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to the field of educational equipment, and in particular to a push-and-draw blackboard.

  The blackboard is an important educational tool. A conventional blackboard includes an outer frame and a blackboard that is entirely fixed to the outer frame. However, the space available for such blackboards is limited and cannot meet class requirements. Furthermore, as multimedia lessons become more popular, multimedia display screens are used more frequently for lessons. Using a conventional blackboard is inconvenient if the teacher needs to switch between the blackboard and the multimedia display screen.

  To deal with the above problems, a kind of multimedia push-and-draw blackboard exists in the market. This type of blackboard includes an outer frame, and a multimedia screen and a movable blackboard are mounted inside the outer frame. Switching between the blackboard and the multimedia display screen can be done by pressing and pulling the blackboard. However, when manufacturing such a multimedia push-pull blackboard, the push-pull blackboard and the multimedia display screen must be attached at the same time, and if the multimedia display screen fails, the push-pull blackboard must be removed first. Must then be reinstalled after the multimedia display screen has been repaired. Thus, such existing technical challenges have the disadvantages of long-term maintenance, wasted time and effort, and a detrimental impact on the lesson.

  In order to overcome the above disadvantages present in the prior art, it is an object of the present disclosure to provide a push-and-draw blackboard in which a multimedia display screen can be easily attached and removed.

  Provided is an outer frame, and a push-pull blackboard including a movable blackboard and a multimedia display screen disposed in the outer frame. The multimedia display screen is fixed to the inside of the outer frame using an arc-shaped elastic fixed sheet and is disposed behind the movable blackboard.

  Instead, according to the push-drawn blackboard of the present invention, the spring is attached to the left edge and / or the right edge of the outer frame along the direction toward the center of the outer frame.

  Instead, according to the push-pull blackboard of the present invention, the number of movable blackboards is one.

  Instead, according to the push blackboard of the present invention, the area of the movable blackboard is greater than or equal to the area of the multimedia display screen.

  Various other objects, features and advantages of the present invention will become fully apparent when the same is better understood in view of the accompanying drawings. The accompanying drawings are only for the purpose of illustrating preferred embodiments and are not to be construed as limiting the invention.

It is a figure which shows the structure of the push-pull blackboard by one Embodiment of this invention. It is a side view of a fixed sheet when attached to a wall. It is a figure which shows the structure of the push-pull blackboard by other embodiment of this invention.

  Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

  The present disclosure provides a push-pull blackboard comprising an outer frame, a movable blackboard disposed within the outer frame, and a multimedia display screen, wherein the push-pull blackboard is provided with an outer frame and a sliding surface inside thereof. A movable blackboard is provided on the sliding surface, and the multimedia display screen is fixed to the inner side of the outer frame using an arc-shaped elastic fixed sheet, and is arranged behind the movable blackboard.

  FIG. 1 is a diagram showing a structure of a push-pull blackboard according to an embodiment of the present invention. As shown in FIG. 1, the push-pull blackboard includes an outer frame 1 and a movable blackboard 2 disposed in the outer frame 1, and the outer frame 1 is provided with a sliding surface on the inner side. It is provided on the moving surface and can slide to the left and right on the sliding surface, thereby changing the position of the blackboard. A multimedia display screen 3 disposed behind the movable blackboard 2 is also attached to the inside of the outer frame 1, and the multimedia display screen 3 is placed inside the outer frame 1 using an arc-shaped elastic fixing sheet 4. Fixed. As shown in FIGS. 1 and 3, four fixing sheets 4 are attached to the wall, and their positions are inside the outer frame, so that the multimedia display screen 3 is fixed inside the outer frame 1. Is done.

  FIG. 2 is a side view of the fixing sheet when attached to the wall. As shown in FIG. 2, one end of the fixed sheet 4 is fixed to the wall at a position inside the outer frame, and the other end is a free end spaced from the wall, the distance being the thickness of the multimedia display screen. Smaller than. The fixed sheet has elasticity and can be elastically deformed. Thus, such elasticity ensures that the multimedia display screen can be inserted into and removed from the gap between the fixed sheet and the wall. Furthermore, since the distance from the free end of the fixed sheet to the wall is smaller than the thickness of the multimedia display screen, after the multimedia display screen is inserted into the outer frame, the fixed sheet clamps the multimedia display screen, The multimedia display screen can be securely fixed to the wall at a position inside the outer frame. The fixed sheet is formed of an elastic material such as elastic steel.

  In existing push-pull blackboards, when the movable blackboard is pushed to the left or right, the edges of the movable blackboard can directly collide with the left or right edge of the outer frame, possibly damaging both the outer frame and the blackboard. is there. As a result, the outer frame can fall, which is dangerous. In order to solve this problem, according to the push-drawn blackboard of the present disclosure, the spring 5 is arranged along the direction from the outer edge of the movable blackboard to the center of the outer frame, and the right edge and / or the left of the outer frame. Attached to the edge. For example, as shown in FIG. 1, if there are two movable blackboards, the springs are located on both the left and right edges of the outer frame, and if there is only one movable blackboard, the springs are on the outside It is provided on one side of the frame (the side on which the movable blackboard is disposed). As shown in FIG. 3, when the movable blackboard is arranged on the left half side of the outer frame, it is only necessary to provide a spring on the left side of the outer frame. When the movable blackboard is pushed and / or pulled to the left and / or right due to the spring arrangement and the spring damper effect, the movable blackboard does not directly collide with the left and / or right edge of the outer frame. , Thereby reducing damage to the movable blackboard and the outer frame, improving the life of the movable blackboard and avoiding safety related accidents.

  According to the push-pull blackboard of the present disclosure, the number of movable blackboards can be one or two as shown in FIGS. 1 and 3. One skilled in the art can also appreciate that there may be any number of blackboards, depending on the actual application.

  FIG. 1 shows a state in which two movable blackboards are arranged. As shown in FIG. 1, there are two movable blackboards, the multimedia display screen 3 is arranged in the center of the outer frame 1, and the two movable blackboards are arranged on the left side and the right side of the multimedia display screen, respectively. Yes. During class, the movable blackboard can be pushed or pulled to the left and right sides of the multimedia display screen, respectively, and thus teachers use the multimedia display screen to perform multimedia presentations You can use a blackboard to write the necessary content at the same time. When the teacher completes the lesson, the two movable blackboards can be pulled toward the center of the outer frame. Since the multimedia display screen is behind the movable blackboard, the multimedia display screen can be obscured by two movable blackboards, thereby preventing damage to the multimedia display screen by external objects . In this embodiment, the two movable blackboards can have the same or different sizes.

  FIG. 3 shows a state in which one movable blackboard is arranged. As shown in FIG. 3, one movable blackboard 2 and one multimedia display screen 3 are disposed inside the outer frame 1, and the movable blackboard 2 is disposed on the left side or right side of the multimedia display screen 3. obtain. If the multimedia display screen is not used, the movable blackboard can be pulled in front of the multimedia display screen, covering and covering the multimedia display screen, thereby preventing the multimedia display screen from being damaged by external objects. Can be removed. If it is necessary to use a multimedia display screen, the movable blackboard can be pulled to one side to bring the multimedia display screen out. Thus, the teacher can use both the movable blackboard and the multimedia display screen at the same time. Preferably, the area of the movable blackboard 2 is greater than or equal to the area of the multimedia display screen 3 so that the movable blackboard 2 is moved to a position in front of the multimedia display screen 3. The entire multimedia display screen 3 can be covered, and the multimedia display screen 3 can be protected.

  In existing push-pull blackboards, space is created when the movable blackboard is drawn towards the middle of the outer frame, and chalk dust easily enters the space, detrimental to the clarity and longevity of the multimedia display screen. Influence. In order to solve this problem, in the push-pull blackboard of the present invention, dust barriers (not shown) are attached to the left and right sides of the movable blackboard. The dust barrier is a kind of seal, which has a dustproof function, is formed of a hard and soft plastic composite material, and is a strip. During installation, the dust blocker can be secured to the left and right edges of the movable blackboard using coupling means such as nails or double-sided tape. By arranging the dust barrier, the multimedia display screen is effectively protected from being damaged by the chalk dust when the two movable blackboards are pulled toward the center of the outer frame, thereby Extends the life of the media display screen.

  In existing push-pull blackboards, there are spaces between the upper and lower edges of the multimedia display screen and the upper and lower edges of the outer frame. In the prior art, two small blackboards are used to cover the space. Such an arrangement reduces the space available. In the present invention, one end of the fixed sheet is fixed to the wall at a position close to the upper edge of the outer frame. In this way, the upper end of the multimedia display screen is close to the upper edge of the outer frame, and a larger space is formed between the lower edge of the multimedia display screen and the lower edge of the outer frame, thus The cabinet 6 can be arranged in a larger space. As shown in the figure, the cabinet is a two-door steel cabinet having the same width as that of the multimedia display screen. This cabinet can be used to store real teaching materials such as chalk, blackboard eraser, or can be used to store teacher's personal items. The benefit of arranging the cabinets is that more space is available and the excellent appearance of the push-and-draw blackboard is obtained.

  According to the push-drawn blackboard of the present disclosure, the outer frame 1 is formed of an aluminum alloy. Aluminum alloys are alloys with low density, strength close to or higher than steel quality, excellent plasticity and excellent machinability. By using an aluminum alloy to make the outer frame, the outer frame can have a lower weight while having sufficient strength and can guarantee the use of a push-draw blackboard.

  According to the push-pull blackboard of the present disclosure, the push-pull blackboard includes a fixing sheet that fixes the multimedia display screen inside the outer frame so as to facilitate installation and maintenance of the multimedia display screen. Push-pull blackboards also include damper springs and dust barriers, which not only reduce the possibility of damage to the outer frame and the movable blackboard when pushing the movable blackboard, but also with the movable blackboard and the multimedia display screen. Protect the multimedia display screen from external dust entering the space between, thereby extending the life of the push-pull blackboard.

  What has been described and illustrated herein are some of the preferred embodiments of the disclosure and variations thereof. The terms, descriptions and figures used herein are set forth by way of illustration only and are not to be construed as limiting. Those skilled in the art will recognize that many variations are possible within the spirit and scope of the disclosure, and unless otherwise indicated, all terms are to be interpreted in the broadest and reasonable sense. Let's go. All headings used in the description are for convenience only and have no legal or limited effect.

  Various aspects and embodiments are disclosed herein, while other aspects and embodiments are contemplated. The various aspects and embodiments disclosed herein are for the purpose of illustrating the scope and spirit indicated by the following claims and are not intended to be limiting.

Claims (4)

A push-pull blackboard comprising an outer frame (1), a movable blackboard (2) and a multimedia display screen (3) disposed in the outer frame (1),
The outer frame (1) is provided with a sliding surface on the inner side, the movable blackboard (2) is provided on the sliding surface, and the multimedia display screen (3) is an arc-shaped elastic fixing sheet (4). ), And is arranged behind the movable blackboard (2) and fixed to the inside of the outer frame (1). Push according to claim 1, characterized in that the spring (5) is attached to the left and / or right edge of the outer frame (1) along a direction towards the center of the outer frame (1). Pull blackboard. The push-pull blackboard according to claim 1, wherein the number of the movable blackboards (2) is one. The push-pull blackboard according to claim 3, characterized in that the area of the movable blackboard (2) is greater than or equal to the area of the multimedia display screen (3).

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