CN213891954U

CN213891954U - Convenient and quick cleaning blackboard

Info

Publication number: CN213891954U
Application number: CN202022723051.0U
Authority: CN
Inventors: 周乐峦; 王梦娴; 于君; 周子悦
Original assignee: Hubei University of Technology
Current assignee: Hubei University of Technology
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-06
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses a convenient quick clear blackboard relates to the teaching aid field, and to current blackboard in the use, the inconvenient quick clearance of writing on the blackboard, when wiping the blackboard, the chalk dust user's hand of making dirty inhales the healthy problem of harm after the health, now proposes following scheme, including the frame, the inside of frame is seted up flutedly, the recess runs through the front and the back of frame, the left side top inner wall of frame is equipped with the driven shaft along longitudinal movement cover, the right side top inner wall of frame is equipped with the driving shaft along longitudinal movement cover, the driving shaft is equipped with the area of writing with the outside cover of the activity of driven shaft, the left and right sides bottom fixedly connected with of frame supports a section of thick bamboo. The utility model discloses a wipe the writing fast, to the collection function of chalk dust when wiping the writing, avoided the chalk dust to be inhaled the health, protected user's healthy, can height-adjusting, facilitate the use.

Description

Convenient and quick cleaning blackboard

Technical Field

The utility model relates to a teaching aid field especially relates to a convenient quick clear blackboard.

Background

The blackboard is not particularly a black board, is a plane which can be repeatedly written by chalk in the traditional sense, is hard, and is mainly used for teaching. The blackboard is generally made of wood board or ground glass, and can be written on by using specific writing materials such as chalk. Mostly black, greenish black, white or beige.

In the use process of the existing blackboard, writing on the blackboard is inconvenient and quick to clean, a user needs to hold the blackboard eraser to erase the writing bit by bit, more chalk dust is generated when the blackboard is erased, the hands of the user are polluted, and after the chalk dust is sucked into the body, the health of the body is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of convenient quick clear blackboard has solved the inconvenient quick clearance of writing on the blackboard, and when wiping the blackboard, the chalk dust makes dirty user's hand, inhales the healthy problem of harm after the health.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a convenient and quick-cleaning blackboard comprises an outer frame, wherein a groove is formed in the outer frame, the groove penetrates through the front surface and the back surface of the outer frame, a driven shaft is sleeved on the inner wall of the top of the left side of the outer frame along the longitudinal movable sleeve, a driving shaft is sleeved on the inner wall of the top of the right side of the outer frame along the longitudinal movable sleeve, a writing belt is sleeved on the movable outer sleeves of the driving shaft and the driven shaft, supporting cylinders are fixedly connected to the bottoms of the left side and the right side of the outer frame, supporting rods are sleeved on the inner part of the supporting cylinders along the longitudinal movable sleeve, an equipment box is fixedly connected to the bottom of the right side of the outer frame, an equipment groove is formed in the inner wall of the bottom of the equipment groove, a driving motor is fixedly connected with a bolt, a first belt pulley is fixedly sleeved on, fixedly connected with blackboard eraser on the right side inner wall of protective housing, blackboard eraser supports tightly with writing the area, the right side bottom movable sleeve of frame is equipped with the second belt pulley, the fixed cover in top of second belt pulley is equipped with first bevel gear, the bottom inner wall of protective housing is equipped with second bevel gear along horizontal movable sleeve, second bevel gear's left side fixedly connected with fan.

Preferably, the bottom of the outer frame is provided with a sliding groove, a sliding block is movably sleeved in the sliding groove, and the bottom of the sliding block is fixedly connected with a chalk box.

Preferably, the bottom thread cover of the supporting cylinder is provided with a thread sleeve, the bottom end of the supporting cylinder is fixedly connected with a fixing block, and the inner wall of the thread sleeve is tightly abutted to the side face of the fixing block.

Preferably, the bottom of the supporting rod is fixedly connected with a supporting plate along the axial direction, and the front end and the rear end of the bottom surface of the supporting plate are respectively and fixedly connected with two universal wheels.

Preferably, a backing plate is fixedly connected to the inner wall of the top of the outer frame, the bottom of the backing plate is fixedly connected to the inner wall of the bottom of the outer frame, and the backing plate is abutted to the inner wall of the writing tape.

Preferably, the bottom of the right side of the protective shell is fixedly connected with a dust filter screen along the longitudinal direction, and the bottom of the dust filter screen is fixedly connected with a dust collecting box.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an installation blackboard eraser has realized the function of erasing the writing fast with writing the area, and installation baffle and fan have realized the collection function to the chalk dust, and the chalk dust makes dirty hand and is inhaled the health by the user when having avoided wiping the blackboard, has protected that user's is healthy, has height-adjusting's function simultaneously, facilitates the use.

Drawings

Fig. 1 is a schematic front view of a blackboard convenient and quick to clean according to the present invention;

fig. 2 is a schematic view of the overlooking structure of the blackboard convenient and quick to clean according to the present invention.

In the figure: the multifunctional writing board comprises a universal wheel 1, a threaded sleeve 2, a fixing block 3, a base plate 4, a support rod 5, a support barrel 6, an outer frame 7, a writing belt 8, a driven shaft 9, an eraser 10, a protective shell 11, a fan 12, a second bevel gear 13, a first bevel gear 14, a dust filter screen 15, a dust collection box 16, a transmission shaft 17, a second belt pulley 18, a first belt pulley 19, a driving motor 20, an equipment box 21, a driving shaft 22, a chalk box 23 and a support plate 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, the present solution provides an embodiment: a convenient and fast-cleaning blackboard comprises an outer frame 7, a groove is formed in the outer frame 7 and penetrates through the front surface and the back surface of the outer frame 7, a driven shaft 9 is sleeved on the inner wall of the top of the left side of the outer frame 7 along the longitudinal movable direction, a driving shaft 22 is sleeved on the inner wall of the top of the right side of the outer frame 7 along the longitudinal movable direction, a writing belt 8 is sleeved on the movable outer portions of the driving shaft 22 and the driven shaft 9, supporting cylinders 6 are fixedly connected to the bottoms of the left side and the right side of the outer frame 7, supporting rods 5 are sleeved on the inner portions of the supporting cylinders 6 along the longitudinal movable direction, an equipment box 21 is fixedly connected to the bottom of the right side of the outer frame 7, an equipment groove is formed in the equipment box 21, a driving motor 20 is fixedly connected to the inner wall of the bottom of the equipment groove through bolts, a first belt pulley 19 is fixedly sleeved on an output shaft of the driving motor 20, a driving shaft 22 is fixedly sleeved on the top of the output shaft of the driving motor 20, and a protective shell 11 is fixedly connected to the right side of the outer frame 7, fixedly connected with blackboard eraser 10 on the right side inner wall of protective housing 11, blackboard eraser 10 supports tightly with writing area 8, and the right side bottom activity cover of frame 7 is equipped with second belt pulley 18, and the fixed cover in top of second belt pulley 18 is equipped with first bevel gear 14, and the bottom inner wall of protective housing 11 is equipped with second bevel gear 13 along horizontal activity cover, and the left side fixedly connected with fan 12 of second bevel gear 13.

In this embodiment, the bottom of the outer frame 7 is provided with a sliding groove, a sliding block is movably sleeved in the sliding groove, and the bottom of the sliding block is fixedly connected with a chalk box 23.

In this embodiment, the bottom thread bush of a support section of thick bamboo 6 is equipped with threaded sleeve 2, and the bottom fixedly connected with fixed block 3 of a support section of thick bamboo 6, the inner wall of threaded sleeve 2 supports tightly with the side of fixed block 3.

In this embodiment, the bottom of the support rod 5 is fixedly connected with a support plate 24 along the axial direction, and the front end and the rear end of the bottom surface of the support plate 24 are respectively and fixedly connected with two universal wheels 1.

In this embodiment, the backing plate 4 is fixedly connected to the inner wall of the top of the outer frame 7, the bottom of the backing plate 4 is fixedly connected to the inner wall of the bottom of the outer frame 7, and the backing plate 4 is abutted to the inner wall of the writing tape 8.

In this embodiment, a dust filter 15 is fixedly connected to the bottom of the right side of the protective shell 11 along the longitudinal direction, and a dust collecting box 16 is fixedly connected to the bottom of the dust filter 15.

The working principle is that firstly, when some writing on the blackboard is needed, writing can be directly performed on the front surface of the writing belt 8, the inner wall of the writing belt 8 is tightly abutted to the base plate 4 to provide writing support, when the writing on the blackboard needs to be erased, the driving motor 20 is started, the driving motor 20 rotates in the forward direction to drive the driving shaft 22 to rotate, the driving shaft 22 rotates and drives the driven shaft 9 to rotate through the driving of the writing belt 8, the writing belt 8 moves rightwards, the eraser 10 is tightly abutted to the right end surface of the writing belt 8 to erase the writing on the surface of the writing belt 8, the driving motor 20 rotates and drives the first belt pulley 19 to rotate, the first belt pulley 19 drives the second belt pulley 18 to rotate through belt transmission, the second belt pulley 18 rotates and drives the first bevel gear 14 to rotate, the first bevel gear 14 rotates and drives the fan 12 to rotate, chalk dust erased by the eraser 10 is sucked into the protective shell 11, and air flow is discharged through the dust filtering net 15, chalk dust is intercepted by the dust filter screen 15 and enters the dust collection box 16, after the chalk dust in the dust collection box 16 is fully collected, the dust collection box 16 can be taken down and cleaned, the chalk dust is returned to the original position, after all the writing is erased, the driving motor 20 is turned off, the writing can be continued, when the board surface height needs to be adjusted, the threaded sleeve 2 is rotated reversely, the threaded sleeve 2 moves upwards, the inner wall of the bottom of the threaded sleeve 2 is far away from the side surface of the fixed block 3, the supporting rod 3 is loosened from the fixed block 3, the supporting rod 3 can be adjusted in height at the moment, after the proper height is adjusted, the threaded sleeve 2 is rotated forwards, the threaded sleeve 2 moves downwards, the inner wall of the bottom of the threaded sleeve 2 abuts against the side surface of the fixed block 3, the fixed block 3 is pressed to abut against the supporting rod 3, and the position of the supporting rod 3 is fixed. The overall height is fixed accordingly.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The convenient and fast-cleaning blackboard comprises an outer frame (7) and is characterized in that a groove is formed in the outer frame (7), the groove penetrates through the front face and the back face of the outer frame (7), a driven shaft (9) is sleeved on the inner wall of the top of the left side of the outer frame (7) along the longitudinal movable sleeve, a driving shaft (22) is sleeved on the inner wall of the top of the right side of the outer frame (7) along the longitudinal movable sleeve, a writing belt (8) is sleeved on the driving shaft (22) and the driven shaft (9) along the movable outer sleeve, a supporting cylinder (6) is fixedly connected to the bottoms of the left side and the right side of the outer frame (7), a supporting rod (5) is sleeved in the supporting cylinder (6) along the longitudinal movable sleeve, an equipment box (21) is fixedly connected to the bottom of the right side of the outer frame (7), an equipment groove is formed in the equipment box (21), and a driving motor (20) is fixedly connected to the inner wall of the bottom of the equipment groove through a bolt, fixed cover is equipped with first belt pulley (19) on the output shaft of driving motor (20), the fixed cover in output shaft top of driving motor (20) is equipped with driving shaft (22), the right side fixedly connected with protective housing (11) of frame (7), fixedly connected with board eraser (10) on the right side inner wall of protective housing (11), board eraser (10) support tightly with write area (8), the right side bottom movable sleeve of frame (7) is equipped with second belt pulley (18), the fixed cover in top of second belt pulley (18) is equipped with first bevel gear (14), the bottom inner wall of protective housing (11) is equipped with second bevel gear (13) along horizontal movable sleeve, the left side fixedly connected with fan (12) of second bevel gear (13).

2. The blackboard convenient and quick to clean according to claim 1, characterized in that a sliding groove is formed at the bottom of the outer frame (7), a sliding block is movably sleeved in the sliding groove, and a chalk box (23) is fixedly connected to the bottom of the sliding block.

3. The blackboard convenient and quick to clean according to claim 1, wherein the threaded sleeve (2) is sleeved at the bottom of the supporting cylinder (6), the fixing block (3) is fixedly connected to the bottom end of the supporting cylinder (6), and the inner wall of the threaded sleeve (2) is abutted against the side face of the fixing block (3).

4. A blackboard convenient for rapid cleaning according to claim 1, characterized in that the bottom of the support rod (5) is fixedly connected with a support plate (24) along the axial direction, and the front end and the rear end of the bottom surface of the support plate (24) are fixedly connected with two universal wheels (1) respectively.

5. A blackboard convenient and quick to clean as claimed in claim 1, wherein the inner wall of the top of the outer frame (7) is fixedly connected with a backing plate (4), the bottom of the backing plate (4) is fixedly connected to the inner wall of the bottom of the outer frame (7), and the backing plate (4) is abutted against the inner wall of the writing tape (8).

6. A blackboard convenient for quick cleaning according to claim 1, characterised in that the bottom of the right side of the protective shell (11) is fixedly connected with a dust filtering net (15) along the longitudinal direction, and the bottom of the dust filtering net (15) is fixedly connected with a dust collecting box (16).