CN210970452U

CN210970452U - Blackboard capable of automatically cleaning powder

Info

Publication number: CN210970452U
Application number: CN201920943693.6U
Authority: CN
Inventors: 陶永新; 费晨欢; 宋寒冰
Original assignee: Fujian Agriculture and Forestry University
Current assignee: Fujian Agriculture and Forestry University
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-07-10
Anticipated expiration: 2029-06-21

Abstract

The utility model relates to a blackboard capable of automatically cleaning powder, which comprises a base fixed on the wall surface, wherein a driving roll shaft and a driven roll shaft are vertically arranged above the two ends of the base; the chalk dust eraser is characterized by further comprising writing cloth which forms a closed-loop structure and is sleeved on the driving roller shaft and the driven roller shaft at two ends, a supporting plate which is located on the inner side of the writing cloth is fixedly connected to the upper portion of the base, a collecting tank used for collecting chalk dust is installed below the back of the writing cloth, and a wiping arm which can swing left and right and is used for wiping the back of the writing cloth is installed in the middle position of the lower portion of the back of the writing cloth. The utility model discloses but blackboard of automatically cleaning powder has realized that the blackboard cleans mechanizedly, convenient to use, easy operation, labour saving and time saving to can avoid flying upward everywhere and cause the pollution to the sanitary environment in classroom.

Description

Blackboard capable of automatically cleaning powder

Technical Field

The utility model relates to a but blackboard of automatically cleaning powder.

Background

Chalk dust is a hazard to the health of teachers when the teachers wipe the blackboard in class, and causes pollution to the sanitation of classrooms. Meanwhile, the teacher can waste valuable teaching time by wiping the blackboard in the classroom.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a but self-cleaning powder's blackboard convenient to use, labour saving and time saving.

The utility model discloses a following scheme realizes: a blackboard capable of automatically cleaning powder comprises a base fixed on a wall surface, wherein a driving roll shaft and a driven roll shaft are vertically arranged above two ends of the base; the chalk dust eraser is characterized by further comprising writing cloth which forms a closed-loop structure and is sleeved on the driving roller shaft and the driven roller shaft at two ends, a supporting plate which is located on the inner side of the writing cloth is fixedly connected to the upper portion of the base, a collecting tank used for collecting chalk dust is installed below the back of the writing cloth, and a wiping arm which can swing left and right and is used for wiping the back of the writing cloth is installed in the middle position of the lower portion of the back of the writing cloth.

Furthermore, the wiping arm is wrapped by lint, the lower end of the wiping arm is rotatably mounted in the middle of the lower edge of the back of the supporting plate, and the front of the supporting plate is provided with a first motor for driving the wiping arm to swing in a reciprocating mode.

Furthermore, the driving roll shaft is driven to rotate by a second motor located on the lower side of the base, and the lower end of the main shaft roll shaft is coaxially connected with a main shaft of the second motor.

Further, a conveying belt is arranged in the collecting tank, a blanking port penetrating through the bottom surface of the base is formed in the bottom side of the end portion of the collecting tank corresponding to the discharging end of the conveying belt, and a recovery tank located below the blanking port is installed on the lower side of the base.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses but blackboard of automatically cleaning powder has realized that the blackboard cleans mechanizedly, convenient to use, easy operation, labour saving and time saving to can avoid flying upward everywhere and cause the pollution to the sanitary environment in classroom.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to specific embodiments and related drawings.

Drawings

Fig. 1 is a front view of an embodiment of the present invention;

fig. 2 is a rear view of an embodiment of the present invention;

the reference numbers in the figures illustrate: 100-base, 110-supporting plate, 200-driving roller shaft, 210-second motor, 300-driven roller shaft, 400-writing cloth, 500-collecting tank, 510-conveying belt, 520-third motor, 600-wiping arm, 610-first motor and 700-recovery tank.

Detailed Description

As shown in FIGS. 1 to 2, a blackboard capable of self-cleaning powder comprises a base 100 fixed on a wall surface, a driving roller shaft 200 and a driven roller shaft 300 vertically installed above two ends of the base 100; the chalk dust eraser is characterized by further comprising a writing cloth 400 which forms a closed-loop structure and is sleeved on a driving roller shaft and a driven roller shaft at two ends, a supporting plate 110 located on the inner side of the writing cloth is fixedly connected to the upper portion of the base 100, a collecting tank 500 used for collecting chalk dust is installed below the back of the writing cloth 400, and a wiping arm 600 which can swing left and right and is used for wiping the back of the writing cloth is installed in the middle position below the back of the writing cloth 400. The middle supporting plate plays a supporting role during writing, when the front surface of the writing cloth is full and needs to be cleaned, the driving roller shaft is controlled to rotate, the front surface of the writing cloth rotates to the back surface, the clean back surface rotates to the front surface, then the cleaning arm is controlled to work, the cleaning arm is similar to an automobile wiper, the back surface of the writing cloth is cleaned, the cleaned chalk powder falls into a collecting tank below the cleaning arm, the back surface is closed relatively by a wall, and the chalk powder is not easy to fly around; the utility model discloses but blackboard of automatically cleaning powder has realized that the blackboard cleans mechanizedly, convenient to use, easy operation, labour saving and time saving to can avoid flying upward everywhere and cause the pollution to the sanitary environment in classroom.

In this embodiment, the wiping arm 600 is wrapped by a lint, the lower end of the wiping arm 600 is rotatably mounted at the middle position of the lower edge of the back of the support plate 110, the front of the support plate is provided with a first motor 610 for driving the wiping arm to swing back and forth, a main shaft of the first motor penetrates through the support plate, and the lower end of the wiping arm 600 is fixedly connected to the main shaft of the first motor 610.

In this embodiment, the drive roller shaft 200 is driven to rotate by a second motor 210 located at the lower side of the base, and the lower end of the spindle roller shaft 200 is coaxially connected with the spindle of the second motor 210.

In this embodiment, the upper ends of the driving roller shaft 200 and the driven roller shaft 300 are rotatably mounted on the upper portions of both sides of the supporting plate through bearings, respectively, and the lower ends of the driving roller shaft 200 and the driven roller shaft 300 are rotatably mounted on both ends of the base through bearings, respectively; the lower ends of the driving roller shaft 200 and the driven roller shaft 300 are respectively provided with a stopper ring for limiting the position of the writing cloth so that an interval for installing a collecting groove is left between the writing cloth and the base.

In this embodiment, a conveyor belt 510 is disposed in the collecting tank 500, a driving roller and a driven roller for sleeving the conveyor belt are mounted at two ends of the collecting tank, the driving roller is driven by a third motor 520 to rotate, and a main shaft of the third motor is coaxially connected with the driving roller; a blanking port 120 penetrating through the bottom surface of the base 100 is formed in the bottom side of the end part of the collecting tank 500 corresponding to the discharging end of the conveying belt 510, and a recovery tank 700 positioned below the blanking port is mounted on the lower side of the base 100; the recovery tank is detachably arranged on the base and can be connected through screws or clamping grooves. After a period of time, when more chalk powder is collected on the collecting groove, the chalk powder can be sent into the blanking port through the conveying belt and collected in the recovery groove in a centralized manner.

In this embodiment, the lower side of the base is provided with a wiping switch, a selector switch and a recovery switch for controlling the first motor, the second motor and the third motor, respectively.

Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. A blackboard capable of automatically cleaning powder is characterized in that: the device comprises a base fixed on the wall surface, wherein a driving roll shaft and a driven roll shaft are vertically arranged above two ends of the base; the chalk dust collecting device is characterized by further comprising writing cloth which forms a closed-loop structure and is sleeved on the driving roller shaft and the driven roller shaft at two ends, a supporting plate located on the inner side of the writing cloth is fixedly connected above the base, a collecting tank used for collecting chalk dust is installed below the back surface of the writing cloth, and a wiping arm which can swing left and right and is used for wiping the back surface of the writing cloth is installed in the middle position below the back surface of the writing cloth; the collecting tank is internally provided with a conveyer belt, the bottom side of the end part of the collecting tank corresponding to the discharge end of the conveyer belt is provided with a blanking port penetrating through the bottom surface of the base, and the lower side of the base is provided with a recovery tank positioned below the blanking port.

2. A blackboard of self-cleanable powders, according to claim 1, characterized in that: the cleaning arm is wrapped by lint, the lower end of the cleaning arm is rotatably mounted in the middle of the lower edge of the back face of the supporting plate, and the front face of the supporting plate is provided with a first motor for driving the cleaning arm to swing in a reciprocating mode.

3. A blackboard of self-cleanable powders, according to claim 1, characterized in that: the driving roll shaft is driven to rotate by a second motor located on the lower side of the base, and the lower end of the main shaft roll shaft is coaxially connected with a main shaft of the second motor.