CN211166109U - Blackboard device with remove blackboard eraser - Google Patents

Abstract

The utility model relates to a blackboard device with remove blackboard eraser, include: the blackboard eraser comprises a blackboard, an upper slide rail, a lower slide rail and a movable blackboard eraser; the upper sliding rail is fixed at the edge of the top end of the blackboard; the lower slide rail is fixed at the edge of the bottom end of the blackboard; the movable blackboard eraser comprises an upper pulley, a lower pulley, a fixed plate, a cleaning brush, a first dust suction device, a second dust suction device, a switch and an armrest; the upper pulley is arranged at the top end of the fixed plate, the lower pulley is arranged at the bottom end of the fixed plate, the upper pulley is clamped in the upper sliding rail, and the lower pulley is clamped in the lower sliding rail; the upper pulley and the lower pulley roll along the upper slide rail and the lower slide rail to drive the fixed plate to move in parallel along the blackboard; the bottom surface of the cleaning brush is fixedly connected with the inner wall of the fixed plate; the first dust suction device and the second dust suction device are respectively and fixedly connected to two sides of the fixing plate; the switch is arranged on the fixing plate and is electrically connected with the first dust suction device and the second dust suction device; the handrail is arranged on the outer wall of the fixing plate.

Description

Blackboard device with remove blackboard eraser

Technical Field

The utility model relates to a teaching equipment field especially relates to a blackboard device with remove blackboard eraser.

Background

The structure of the blackboard eraser used for the current blackboard on the market is formed by simply combining a fixed plate and a cleaning brush. When the large-area blackboard erasing is needed, time and labor are wasted, a large amount of dust is easily generated, and the respiratory tract health of students is influenced. Therefore, reduction of dust generated when erasing a blackboard is a problem which needs to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's defect, provide a blackboard device with remove blackboard eraser, can accomplish fast and to the erasing of large tracts of land blackboard, the dust that produces when reducing the blackboard to the protection student's respiratory track is healthy.

In order to achieve the above object, an embodiment of the utility model provides a blackboard device with remove blackboard eraser, the blackboard device includes: the blackboard eraser comprises a blackboard, an upper slide rail, a lower slide rail and a movable blackboard eraser;

the upper sliding rail is fixed at the top edge of the blackboard; the lower sliding rail is fixed at the edge of the bottom end of the blackboard;

the movable blackboard eraser comprises an upper pulley, a lower pulley, a fixing plate, a cleaning brush, a first dust suction device, a second dust suction device, a switch and an armrest;

the upper pulley is arranged at the top end of the fixed plate, the lower pulley is arranged at the bottom end of the fixed plate, the upper pulley is clamped in the upper sliding rail, and the lower pulley is clamped in the lower sliding rail; the upper pulley and the lower pulley roll along the upper slide rail and the lower slide rail to drive the fixing plate to move in parallel along the blackboard;

the bottom surface of the cleaning brush is fixedly connected with the inner wall of the fixing plate; the first dust suction device and the second dust suction device are respectively fixed on two sides of the fixing plate;

the switch is arranged on the fixing plate and is electrically connected with the first dust suction device and the second dust suction device; the handrail is arranged on the outer wall of the fixing plate.

Preferably, the length and the width of the upper slide rail and the lower slide rail are respectively the same.

Preferably, the upper slide rail and the lower slide rail are arranged in parallel.

Preferably, the first dust suction device and the second dust suction device have the same width as the blackboard.

Further preferably, the first dust suction device and the second dust suction device have the same thickness;

the thicknesses of the first dust suction device and the second dust suction device are both smaller than or equal to the sum of the thicknesses of the fixed plate and the cleaning brush.

Further preferably, the first dust suction device, the second dust suction device, the fixing plate and the cleaning brush have the same length.

Preferably, the area of the fixing plate is greater than or equal to the area of the cleaning brush.

Preferably, the upper pulley is arranged at the top end of the fixing plate, and the lower pulley is arranged at the bottom end of the fixing plate and specifically comprises:

and the two ends of the fixing plate are provided with pulley fixing parts which are respectively and fixedly connected with the wheel shafts of the upper pulley and the lower pulley.

Preferably, the switch specifically comprises a power supply and a switch button;

the power supply is connected with the first dust collection device and the second dust collection device through power lines respectively, and the switch key generates a control signal to switch on or off the power lines.

The embodiment of the utility model provides a blackboard device with remove blackboard eraser can accomplish the erasing to the large tracts of land blackboard fast, reduces the dust that produces when wiping the blackboard to it is healthy to protect student's respiratory track.

Drawings

Fig. 1 is a schematic view of a front view structure of a blackboard device with a movable blackboard eraser according to the present invention;

fig. 2 is a schematic top view of the blackboard device with the movable blackboard eraser according to the present invention;

fig. 3 is a schematic side view of the blackboard device with the movable blackboard eraser according to the present invention.

Detailed Description

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

The embodiment of the utility model provides a pair of blackboard device with remove blackboard eraser can accomplish the erasing to the large tracts of land blackboard fast, reduces the dust that produces when wiping the blackboard to it is healthy to protect student's respiratory track. Fig. 1, fig. 2 and fig. 3 are respectively a front view, a top view and a side view of the blackboard device with the movable blackboard eraser provided by the present invention. Referring to fig. 1, 2 and 3, a blackboard apparatus with a movable blackboard eraser includes: blackboard 1, upper slide rail 2, lower slide rail 3 and removal blackboard eraser 4.

The upper slide rail 2 is fixed at the top edge of the blackboard 1, and the lower slide rail 3 is fixed at the bottom edge of the blackboard 1.

In this embodiment, go up slide rail 2 and lower slide rail 3 and the upper and lower border parallel arrangement of blackboard, be the horizontal setting with ground promptly, in other schemes, can also set up the slide rail at the left and right sides border of blackboard, perpendicular ground setting promptly.

Specifically, the movable blackboard eraser 4 includes an upper pulley 47, a lower pulley 48, a fixed plate 41, a cleaning brush 42, a first dust suction device 43, a second dust suction device 44, a switch 45, and an armrest 46.

The upper pulley 47 is disposed at the top end of the fixed plate 41, and the lower pulley 48 is disposed at the bottom end of the fixed plate 41.

Specifically, the two ends of the fixing plate 41 are provided with pulley fixing members, and the pulley fixing members are respectively and fixedly connected with the wheel shafts of the upper pulley and the lower pulley.

The length and width of the upper slide rail 2 and the lower slide rail 3 are respectively the same. The upper slide rail 2 and the lower slide rail 3 are arranged in parallel, so that the blackboard eraser 4 can be conveniently driven to move by rolling in the slide rails through the pulleys.

The upper pulley 47 is clamped in the upper slide rail 2, and the lower pulley 48 is clamped in the lower slide rail 3. The upper pulley 47 and the lower pulley 48 roll along the upper slide rail 2 and the lower slide rail 3, and drive the fixing plate 41 to move in parallel along the blackboard 1.

In a specific embodiment, the pulley track of the upper slide rail 2 may be disposed above or below the upper slide rail 2, and correspondingly, the pulley track of the lower slide rail 3 may be disposed below or above the lower slide rail 3.

In a specific embodiment, the pulley track of the upper slide rail 2 is arranged above the upper slide rail 2 and the pulley track of the lower slide rail 3 is arranged below the lower slide rail 3.

At this time, the upper pulley 47 and the lower pulley 48 are respectively clamped in the upper side groove of the upper slide rail 2 and the lower side groove of the lower slide rail 3, and the movable blackboard eraser 4 is not in the same plane with the upper slide rail 2 and the lower slide rail 3.

In another specific embodiment, the pulley track of the upper slide rail 2 is arranged below the upper slide rail 2 and the pulley track of the lower slide rail 3 is arranged above the lower slide rail 3.

The upper pulley 47 is provided at the top end of the fixed plate 41 in a direction perpendicular to the axis of the upper pulley 47. The lower pulley 48 is disposed at the bottom end of the fixed plate 41 in a direction perpendicular to the axis of the lower pulley 48. At this time, the upper pulley 47 and the lower pulley 48 are respectively engaged in the lower groove of the upper rail 2 and the upper groove of the lower rail 3, and the blackboard eraser 4 is moved between the upper rail 2 and the lower rail 3.

The bottom surface of the cleaning brush 42 is fixedly connected to the inner wall of the fixing plate 41. The brush head of the cleaning brush 42 is vertical to the blackboard 1 and contacts with the surface of the blackboard 1, and forms a certain pressure.

The area of the cleaning brush 42 is equal to or less than the area of the fixing plate 41 so as to effectively fix the cleaning brush 42.

The first dust suction device 43 and the second dust suction device 44 are respectively fixed on both sides of the fixed plate 41.

In a preferred embodiment, the first dust suction device 43 and the second dust suction device 44 have the same width as the blackboard 1, so that dust generated when the blackboard 1 is erased can be effectively cleaned.

The first dust suction device 43 and the second dust suction device 44 have the same thickness.

The thicknesses of the first dust suction means 43 and the second dust suction means 44 are each less than or equal to the sum of the thicknesses of the fixed plate 41 and the cleaning brush 42.

The first dust suction means 43, the second dust suction means 44, the fixing plate 41 and the cleaning brush 42 have the same length, so that dust is easily contained in an area when the blackboard 1 is erased, and cleaning is easily performed.

The switch 45 is arranged on the fixing plate 41, the switch 45 is electrically connected with the first dust suction device 43 and the second dust suction device 44, and a user can select whether to turn on the dust suction devices according to requirements.

The switch 45 specifically includes a power supply and a switch button; power and switch buttons are not shown.

The power supply is connected with the first dust suction device 43 and the second dust suction device 44 through power lines respectively, and the switch key generates a control signal to switch on or off the power lines. The switch key can be a touch key or a mechanical key.

In a specific embodiment, the switch button is a touch button, and when the switch button is touched for the first time, the first dust collector 43 and the second dust collector 44 are powered on. When the switch button is touched for the second time, the first dust suction device 43 and the second dust suction device 44 are powered off.

In another embodiment, the switch button is a mechanical button, and when the switch button is pressed, the first dust suction device 43 and the second dust suction device 44 are powered on. When the switch button is popped up, the first dust suction device 43 and the second dust suction device 44 are powered off.

The armrest 46 is disposed on the outer wall of the fixing plate 41 to facilitate the movement of the blackboard eraser 4.

When erasing the blackboard, the user applies a horizontal force to the movable blackboard eraser 4 through the armrest 46, so that the upper pulley 47 and the lower pulley 48 respectively roll in the direction of the force in the upper slide rail 2 and the lower slide rail 3, and simultaneously drives the fixed plate 41 to move. While the fixed plate 41 is moving, the cleaning brush 42 is brought into contact with the surface of the blackboard 1 to erase dust on the blackboard 1. When a user presses the switch 45 during the blackboard erasing process, the first dust suction device 43 and the second dust suction device 44 are powered on, dust generated during the blackboard erasing process is sucked, and the blackboard erasing work is completed. After completion, the user presses the switch 45 again, and the first and second dust suction devices 43 and 44 are powered off.

The embodiment of the utility model provides a blackboard device with remove blackboard eraser can accomplish the erasing to the large tracts of land blackboard fast, reduces the dust that produces when wiping the blackboard to it is healthy to protect student's respiratory track.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (9)

1. The blackboard device with the movable blackboard eraser is characterized by comprising: the blackboard eraser comprises a blackboard, an upper slide rail, a lower slide rail and a movable blackboard eraser;

the upper sliding rail is fixed at the top edge of the blackboard; the lower sliding rail is fixed at the edge of the bottom end of the blackboard;

the movable blackboard eraser comprises an upper pulley, a lower pulley, a fixing plate, a cleaning brush, a first dust suction device, a second dust suction device, a switch and an armrest;

the upper pulley is arranged at the top end of the fixed plate, the lower pulley is arranged at the bottom end of the fixed plate, the upper pulley is clamped in the upper sliding rail, and the lower pulley is clamped in the lower sliding rail; the upper pulley and the lower pulley roll along the upper slide rail and the lower slide rail to drive the fixing plate to move in parallel along the blackboard;

the bottom surface of the cleaning brush is fixedly connected with the inner wall of the fixing plate; the first dust suction device and the second dust suction device are respectively fixed on two sides of the fixing plate;

the switch is arranged on the fixing plate and is electrically connected with the first dust suction device and the second dust suction device; the handrail is arranged on the outer wall of the fixing plate.

2. The blackboard apparatus with a movable blackboard eraser according to claim 1, wherein the length and width of the upper and lower sliding rails are respectively the same.

3. The blackboard apparatus with a movable blackboard eraser according to claim 1, wherein the upper slide rail is disposed in parallel with the lower slide rail.

4. The blackboard apparatus with a movable blackboard eraser according to claim 1, wherein the first dust suction device and the second dust suction device are the same as the width of the blackboard.

5. The blackboard apparatus with a movable blackboard eraser according to claim 4, wherein the first dust suction device and the second dust suction device have the same thickness;

the thicknesses of the first dust suction device and the second dust suction device are both smaller than or equal to the sum of the thicknesses of the fixed plate and the cleaning brush.

6. The blackboard apparatus with a movable blackboard eraser according to claim 4, wherein the lengths of the first dust suction device, the second dust suction device, the fixed plate and the cleaning brush are the same.

7. A blackboard apparatus with a movable blackboard eraser according to claim 1, wherein the area of the fixed plate is greater than or equal to the area of the cleaning brush.

8. The blackboard device with the movable blackboard eraser according to claim 1, wherein the upper pulley is arranged at the top end of the fixed plate, and the lower pulley is arranged at the bottom end of the fixed plate, specifically:

and the two ends of the fixing plate are provided with pulley fixing parts which are respectively and fixedly connected with the wheel shafts of the upper pulley and the lower pulley.

9. The blackboard device with the movable blackboard eraser according to claim 1, wherein the switch specifically includes a power supply and a switch button;

the power supply is connected with the first dust collection device and the second dust collection device through power lines respectively, and the switch key generates a control signal to switch on or off the power lines.

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