CN214775038U

CN214775038U - Writing board for teaching

Info

Publication number: CN214775038U
Application number: CN202120408609.8U
Authority: CN
Inventors: 李明超; 李双民; 齐慧霞; 李昕颖
Original assignee: Hebei University of Chinese Medicine
Current assignee: Hebei University of Chinese Medicine
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-11-19
Anticipated expiration: 2031-02-24

Abstract

A writing board for teaching comprises a frame, a rolling white board and an erasing mechanism; the frame comprises two spaced upright columns and a cross beam which is arranged at the bottoms of the two upright columns in a spanning manner; the rolling type white board comprises a first rolling shaft, a second rolling shaft, a belt, a white plastic film, a filling plate and a first motor, wherein the first rolling shaft and the second rolling shaft are parallelly arranged between two vertical columns at intervals in the vertical direction in a spanning mode; the erasing mechanism comprises a rotating shaft and cylindrical collodion, the rotating shaft is rotatably spanned between the rotating shaft and the two vertical columns and driven by a second motor, the cylindrical collodion is wrapped on the rotating shaft, the top of the cylindrical collodion is abutted against the bottom of the belt, and the axial length of the cylindrical collodion is equal to the width of the belt. The utility model discloses can realize high-efficient automatic erasing.

Description

Writing board for teaching

Technical Field

The utility model relates to a teaching aid technical field especially relates to a board is write with teaching.

Background

No matter in primary school, middle school, high school or university, a teacher can not leave the blackboard during class, the blackboard is also called as a writing board, the previous blackboard writing pen is chalk, but the chalk easily generates a large amount of dust and is not sanitary enough, so the prior blackboard made of white hard plastic is mostly used, the writing pen is changed into a white board pen, but because the area of the writing board is limited, when the teacher writes a large amount of blackboard writing, the blackboard writing on the writing board still needs to be erased for many times in the course, the existing blackboard eraser is small, the blackboard erasing time is long, and the precious class time is wasted.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned prior art in not enough, the utility model discloses a main aim at provides one kind and erases the higher teaching of efficiency and uses writing board.

The technical scheme for solving the problems is realized as follows:

a writing board for teaching comprises a frame, a rolling white board and an erasing mechanism; the frame comprises two upright posts arranged at intervals and a cross beam arranged at the bottoms of the two upright posts in a spanning manner; the rolling type white board comprises a first rolling shaft, a second rolling shaft, a belt, a white plastic film, a filling plate and a first motor, wherein the first rolling shaft and the second rolling shaft are parallelly arranged between two upright posts in the vertical direction at intervals in a spanning mode, the belt is sleeved on the first rolling shaft and the second rolling shaft, the white plastic film is laid outside the belt, the filling plate is arranged between the two upright posts in a spanning mode in the horizontal direction and is arranged in the belt between the first rolling shaft and the second rolling shaft in a penetrating mode in the vertical direction, and the first rolling shaft or the second rolling shaft is driven to rotate by the first motor; the erasing mechanism comprises a rotating shaft and cylindrical collodion, the rotating shaft is rotatably spanned between the rotating shaft and the two vertical columns and is driven to rotate by a second motor, the cylindrical collodion is wrapped on the rotating shaft, the top of the cylindrical collodion is abutted against the bottom of the rolling type white board, and the axial length of the cylindrical collodion is equal to the width of the white plastic film.

Wherein, the utility model also comprises a cleaning tank and a lifting mechanism; the cleaning tank is positioned below the erasing mechanism and spans between the two vertical columns; the lifting mechanism is bilaterally symmetrical and comprises two lifting grooves, a sliding block and an electric telescopic rod, the lifting grooves are formed in the stand columns, the sliding block is embedded in the lifting grooves and is in sliding connection with the lifting grooves, the mounting end of the electric telescopic rod is fixedly arranged at the bottom of the lifting grooves, the telescopic end of the electric telescopic rod is connected with the sliding block, and the rotating shaft of the erasing mechanism is respectively connected with the sliding blocks on two sides in a rotating mode.

Wherein, still be equipped with two dehydration poles between erasing mechanism and washing tank, two dehydration poles set up in parallel and interval in the horizontal direction, and the interval of two dehydration poles is less than the diameter of cylindricality glued membrane and is greater than the diameter of pivot.

Wherein, the bottom of washing tank is equipped with a plurality of arc archs.

Wherein, a water storage tank is also arranged below the cleaning tank and fixed on the beam.

Wherein, the utility model discloses still include the water pump, the input and the aqua storage tank intercommunication of water pump, its output and washing tank intercommunication.

Wherein, a plurality of overflow holes are arranged on the side wall of the cleaning tank.

The utility model has the advantages that:

(1) the purpose of automatically erasing the blackboard writing can be realized through the matching of the rolling type white board and the erasing mechanism, the contact area of the cylindrical collodion shaft is large, and the erasing efficiency is high;

(2) the lifting mechanism and the cleaning tank are matched to realize the automatic cleaning of the cylindrical collodion;

(3) due to the arrangement of the arc-shaped bulges of the cleaning tank, a better cleaning effect is achieved in a scrubbing mode;

(4) the dewatering rod can realize timely dewatering after the cylindrical collodion is cleaned, and the wiping effect is good.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1: the utility model is a schematic overall structure diagram;

FIG. 2: FIG. 1 is a sectional view taken along line A-A;

FIG. 3: in fig. 1, B is a partial sectional view (a partial sectional view of the elevating mechanism).

Description of the reference numerals

10 frame

11 column

12 crossbeam

13 universal wheel

20 rolling type white board

21 first roller

22 second roller

23 leather belt

24 white plastic film

25 filling board

26 first electric machine

30 Erasing mechanism

31 rotating shaft

32 column shaped collodion

33 second electric machine

40 rinse bath

41 arc-shaped bulge

42 overflow hole

50 lifting mechanism

51 lifting groove

52 slide block

53 electric telescopic rod

60 dehydration rod

70 water storage tank

80 water pump.

Detailed Description

The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Referring to fig. 1 to 3, the teaching writing board frame 10 of the present invention, a rolling white board 20, an erasing mechanism 30, a washing tub 40, a lifting mechanism 50, a dewatering bar 60, and a water storage tank 70.

The frame 10 is used for bearing various parts and comprises two upright posts 11 arranged at intervals and a cross beam 12 arranged at the bottom of the two upright posts 11 in a spanning mode, and universal wheels 13 with brakes are arranged at the bottom of the frame 10 so as to be convenient to move.

The rolling type whiteboard 20 comprises a first roller 21, a second roller 22, a belt 23, a white plastic film 24, a filling plate 25 and a first motor 26, wherein the first roller 21 and the second roller 22 are arranged between the two columns 11 in parallel and at intervals in the vertical direction, the belt 23 is sleeved on the first roller 21 and the second roller 22 to form a structure similar to a conveyor belt, in this embodiment, the first roller 21 and the second roller 22 have the same structure, the diameter is D, the white plastic film 24 is laid outside the belt 23, when in use, oil is directly written on the white plastic film, the filling plate 25 is horizontally spanned between the two columns 11 and vertically spanned in the belt 23 between the first roller 21 and the second roller 22, and the first roller 21 or the second roller 22 is driven by the first motor 26 to rotate so that the belt 23 and the white plastic film 24 rotate along with the belt. The filling plate 25 is arranged to ensure that the surface of the rolling whiteboard 20 does not shake too much during writing, and therefore the thickness H of the filling plate 25 ranges from: (D × 95%) to (D × 105%), and in this example, the thickness H of the filler plate 25 is D.

The erasing mechanism 30 comprises a rotating shaft 31 and a cylindrical collodion 32, the rotating shaft 31 is rotatably spanned between the two upright posts 11 and is driven to rotate by a second motor 33, the cylindrical collodion 32 is wrapped on the rotating shaft 31, the top of the cylindrical collodion 32 is abutted against the rolling white board 20 (namely the bottom of the white plastic film 24), the axial length of the cylindrical collodion 32 is equal to the width of the white plastic film 24, and when the belt 23 of the rolling white board 20 rotates, the cylindrical collodion 32 rubs against the white plastic film 24 in contact with the rolling white board 20 so as to achieve the purpose of automatically erasing the blackboard-writing. Because the axial length of the cylindrical collodion 32 is equal to the width of the white plastic film 24, the contact surface is larger, and therefore the wiping efficiency is higher when in use.

The lifting mechanism 50 is used for realizing lifting of the erasing mechanism 30, the bilateral symmetry is provided with two lifting grooves 51, the sliding block 52 and the electric telescopic rod 53, the lifting grooves 51 are arranged on the upright post 11, the sliding block 52 is embedded in the lifting grooves 51 and is in sliding connection with the lifting grooves 51, the installation end of the electric telescopic rod 53 is fixedly arranged at the bottom of the lifting grooves 51, the telescopic end of the electric telescopic rod is connected with the sliding block 52, the rotating shaft 31 of the erasing mechanism 30 is respectively connected with the sliding block 52 on the two sides in a rotating mode, the sliding block 52 is driven to lift when the electric telescopic rod 53 lifts, and therefore the erasing mechanism 30 is lifted.

The washing tank 40 is positioned below the erasing mechanism 30 and is spanned between the two upright posts 11, when the erasing mechanism 30 descends, the column-shaped collodion 32 can fall into the washing tank 40, at the moment, the second motor 33 can be started, and the column-shaped collodion 32 rotates to achieve the purpose of washing. In order to achieve a better cleaning effect, the bottom of the cleaning tank 40 is provided with a plurality of arc-shaped protrusions 41, and the cylindrical collodion 32 contacts with the arc-shaped protrusions 41 when rotating in the cleaning tank 40 so as to achieve the purpose of scrubbing. A plurality of overflow holes 42 for discharging excess water are formed on the sidewall of the wash bowl 40.

The dewatering rods 60 are used for dewatering the cleaned cylindrical collodion 32, two dewatering rods 60 are arranged between the wiping mechanism 30 and the cleaning tank 40, the two dewatering rods 60 are arranged in parallel and at intervals in the horizontal direction, the distance between the two dewatering rods 60 is smaller than the diameter of the cylindrical collodion 32 and larger than the diameter of the rotating shaft 31 so as to facilitate dewatering, and the wiping effect is better when the water content of the cylindrical collodion 32 is less.

A water storage tank 70 provided below the cleaning tank 40 and fixed to the beam 12.

The input end of the water pump 80 is communicated with the water storage tank 70, the output end of the water pump 80 is communicated with the cleaning tank 40, water can be automatically injected into the water storage tank 70 by starting the water pump 80, and when the water amount is too much, the water can flow out of the overflow hole 42 of the cleaning tank 40 and fall back into the water storage tank 70.

The utility model discloses a use method:

when writing, a user can directly write on the white plastic film 24 on the front side of the rolling type white board 20 by using the oily pen, and the default positions of the cylindrical collodion 32 are as follows: the white plastic film 24 is abutted under the rolling type white board 20, when the writing board is fully written and needs to be erased, the belt 23 rotates towards the direction of the cylindrical collodion 32 only by starting the first motor 26, and the writing on the white plastic film 24 is erased by the cylindrical collodion 32. When the column-shaped collodion 32 is dirty after being used for a period of time, the lifting mechanism 50 can be utilized to drop the column-shaped collodion 32 into the cleaning tank 40, the second motor 33 is started to clean the column-shaped collodion 32, when the lifting mechanism 50 resets the column-shaped collodion 32 upwards again, the column-shaped collodion 32 is extruded by the two dewatering rods 60 to be dewatered by the two dewatering rods 60. The foregoing description is only of the preferred embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. A writing board for teaching, comprising a frame (10), a rolling whiteboard (20) and an erasing mechanism (30); wherein

The frame (10) comprises two upright posts (11) arranged at intervals and a cross beam (12) arranged at the bottoms of the two upright posts (11) in a spanning manner;

a rolling type white board (20) comprises a first roller (21), a second roller (22), a belt (23), a white plastic film (24), a filling board (25) and a first motor (26), the first roller (21) and the second roller (22) are arranged between the two upright posts (11) in parallel and at intervals in the vertical direction, the belt (23) is sleeved on the first roller (21) and the second roller (22), the white plastic film (24) is laid outside the belt (23), the filling plate (25) is spanned between the two upright posts (11) in the horizontal direction and is arranged in the belt (23) between the first roller (21) and the second roller (22) in the vertical direction, the first roller (21) or the second roller (22) is driven to rotate by the first motor (26);

the erasing mechanism (30) comprises a rotating shaft (31), cylindrical collodion (32) and a second motor (33), wherein the rotating shaft (31) is rotatably spanned between the two upright posts (11) and driven by the second motor (33) to rotate, the cylindrical collodion (32) is wrapped on the rotating shaft (31), the top of the cylindrical collodion is abutted against the bottom of the rolling type white board (20), and the axial length of the cylindrical collodion (32) is equal to the width of the white plastic film (24).

2. The writing board for teaching of claim 1, further comprising a washing tub (40) and a lifting mechanism (50);

a cleaning tank (40) which is positioned below the erasing mechanism (30) and is spanned between the two upright posts (11);

elevating system (50), bilateral symmetry are equipped with two, all include lift groove (51), slider (52) and electric telescopic handle (53), lift groove (51) are seted up on stand (11), slider (52) are inlayed and are located in lift groove (51) and with lift groove (51) sliding connection, the installation end of electric telescopic handle (53) is firmly located lift groove (51) bottom, its flexible end with slider (52) are connected, erase mechanism (30) pivot (31) respectively with both sides slider (52) are rotated and are connected.

3. The writing board for teaching according to claim 2, wherein two dewatering bars (60) are further provided between the wiping mechanism (30) and the washing tub (40), the two dewatering bars (60) are horizontally arranged in parallel and at intervals, and the interval between the two dewatering bars (60) is smaller than the diameter of the cylindrical collodion (32) and larger than the diameter of the rotating shaft (31).

4. The writing board for teaching according to claim 3, wherein the bottom of the washing tub (40) is provided with a plurality of arc-shaped protrusions (41).

5. The writing board for teaching according to claim 4, wherein the side wall of the washing tub (40) is provided with a plurality of overflow holes (42).

6. The writing board for teaching according to claim 5, wherein a water storage tank (70) is further provided below the washing tank (40), and the water storage tank (70) is fixed to the cross beam (12).

7. The writing board for teaching according to claim 6, further comprising a water pump (80), wherein an input end of the water pump (80) is communicated with the water storage tank (70) and an output end thereof is communicated with the washing tank (40).