CN201890033U - Blackboard erasing device - Google Patents

Blackboard erasing device Download PDF

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Publication number
CN201890033U
CN201890033U CN2010205995973U CN201020599597U CN201890033U CN 201890033 U CN201890033 U CN 201890033U CN 2010205995973 U CN2010205995973 U CN 2010205995973U CN 201020599597 U CN201020599597 U CN 201020599597U CN 201890033 U CN201890033 U CN 201890033U
Authority
CN
China
Prior art keywords
blackboard
erasing
dust
driving shaft
brush
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010205995973U
Other languages
Chinese (zh)
Inventor
熊升
Original Assignee
熊升
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 熊升 filed Critical 熊升
Priority to CN2010205995973U priority Critical patent/CN201890033U/en
Application granted granted Critical
Publication of CN201890033U publication Critical patent/CN201890033U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a blackboard erasing device, which solves the problem that physical health of teachers and students are affected due to the fact that dust erased from blackboards disperses in the air when general blackboard erasers are used for erasing the blackboards. The blackboard erasing device is characterized in that a blackboard face (1) in a closed circulating structure is mounted on a transmission mechanism composed of an upper driven shaft (3) and a lower driving shaft (4), and a dust collecting box (8) and a small electric blackboard brush (2) are arranged below the driving shaft (4) of a blackboard body. The blackboard erasing device can not only increase capacity of the blackboard but erase words written on the blackboard conveniently and quickly, while dust can be collected in the dust collecting box (8). Accordingly, the blackboard erasing device can be used for classrooms in colleges, middle schools and primary schools widely.

Description

The blackboard word device that disappears
One, technical field
The utility model belongs to teaching aid, relates in particular to a kind of blackboard word device that disappears.
Two, technical background
Before the utility model is made, it is on duty for the day that existing pupil in school often need do cleaning, because pupil's age is little, stature is short, runs into high any place and just can't reach, wiping is slowly required great effort, the dirt ash flies upward, and full chalk dirt must be removed the object that tables and chairs etc. can help tower height sometimes, very inconvenient, there is potential safety hazard.And university student or tall classmate erase the board, and the place on the low side body of squatting of must bending over is very painstaking, and be extremely inconvenient.
Three, technical scheme
It is a kind of simple in structure, easy to use that the purpose of this utility model is to provide, and can very conveniently wipe the electric dust-less blackboard of writing on the blackboard surface.Main technical schemes of the present utility model is: described blackboard surface is a closed circulation structure, be installed on the transmission mechanism of forming by top driven shaft and bottom driving shaft, last lower rotary shaft all is installed on the body of wall, the bottom driving shaft is by electric-motor drive, and be provided with the blackboard surface gripper shoe at the back side of blackboard surface, below the blackboard body driving shaft, be provided with simultaneously blackboard brush and disposal box, described blackboard brush is for being provided with the cylinder axis of intensive bristle all around, the two ends of axle are installed on the disposal box by bearing, pass through Motor Control, disposal box is fixed on the body of wall, and its bottom is provided with the dust mouth; The back side of blackboard surface is provided with anti-skidding ripple, is provided with two metallic rod and dust dividing plate in the disposal box.
The utility model is not only simple in structure, simple for production, easy operating, and can be disposable writing on the whole blackboard surface be removed clean, and also can utilize electronic small-sized blackboard eraser to remove local literal on the blackboard surface, can help numerous students in middle and primary schools to do blackboard wiping when on duty for the day preferably.
Four, description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is the utility model structure of dust schematic diagram.
Among the figure: 1 is blackboard surface, and 2 is blackboard brush, and 3 is driven shaft, and 4 is driving shaft, and 5 is motor, and 6 is the blackboard surface gripper shoe, and 7 is the dust dividing plate, and 8 is disposal box, and 9 is motor, and 10 is metallic rod.
Five, the specific embodiment
As shown in the figure, get soft material and make annular blackboard surface 1, get two circular metal materials and make rotating shaft, wherein to be placed in the top of body of wall be driven shaft 3 at one two ends, the bottom that another root is installed on body of wall is a driving shaft 4, on the main driven shaft, driving shaft 4 linked to each other with motor machine 5 by driving-belt, is controlled by double-point double-throw switch about blackboard surface 1 was placed in.Simultaneously below the driving shaft 4 of blackboard surface 1, be provided with blackboard brush 2 and disposal box 8, described blackboard brush 2 is for being provided with the cylinder axis of intensive bristle all around, and the two ends of axle are installed on the disposal box 8 by bearing, by motor 9 controls, disposal box 8 is fixed on the body of wall, and its bottom is provided with the dust mouth; Circuit is connected to by lead, two motors and a double-point double-throw switch to be formed, and wherein motor 5 is the power source of blackboard surface 1, and motor 9 is the power source of blackboard brush 2.When implementing the utility model, when the writing on the needs preservation blackboard surface 1, closed double-point double-throw switch makes progress, then blackboard surface upwards enters the back side, when the information of doing storage when needs showed again, then that double-point double-throw switch is closed round about, the information of storage promptly can show again.When needs are wiped whole writing on the blackboard surface 1, double-point double-throw switch closes, make blackboard surface 1 progressively rotation from up to down, blackboard brush 2 rotates with very fast angular speed simultaneously, because the speed of hairbrush motion is very big, can give the enough big momentum of writing on the blackboard surface 1, make its blackboard surface 1 and moving downward of coming off, with metallic rod 10 collisions that are arranged in the disposal box 8, and the kinetic energy that bends was converted into elastic potential energy when the hairbrush in the blackboard brush 2 rotated, after bending to a certain degree, bristle can slip over metallic rod 10, elastic potential energy moment is converted into kinetic energy, and because bristle has been eliminated static, the attraction between powder method and bristle reduces greatly, thereby cause reducing of frictional force, enough big centripetal force can not be provided, and then dust can separate with bristle, thereby reaches the purpose that makes dust releasing.7 on dust dividing plate in order to prevent to come off but the dust that does not fall into disposal box 8 bottoms yet move to once more on the blackboard surface 1 with blackboard brush, make disposal box about two separately, when dust is accumulated to a certain degree, disposal box 8 bottom ash holes can be opened, remove dust in the case.

Claims (2)

1. blackboard word device that disappears, it comprises blackboard surface (1) and blackboard brush (2), it is characterized in that: described blackboard surface (1) is a closed circulation structure, be installed on the transmission mechanism of forming by top driven shaft (3) and bottom driving shaft (4), last lower rotary shaft all is installed on the body of wall, bottom driving shaft (4) is by motor (5) transmission, and be provided with blackboard surface gripper shoe (6) at the back side of blackboard surface (1), be provided with blackboard brush (2) and disposal box (8) simultaneously in the below of blackboard body driving shaft (4), described blackboard brush (2) is for being provided with the cylinder axis of intensive bristle all around, the two ends of axle are installed on the disposal box (8) by bearing, control by motor (9), disposal box (8) is fixed on the body of wall, and its bottom is provided with the dust mouth.
2. the blackboard according to claim 1 word device that disappears, it is characterized in that: the back side of blackboard surface (1) is provided with anti-skidding ripple.
CN2010205995973U 2010-10-28 2010-10-28 Blackboard erasing device Expired - Fee Related CN201890033U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205995973U CN201890033U (en) 2010-10-28 2010-10-28 Blackboard erasing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205995973U CN201890033U (en) 2010-10-28 2010-10-28 Blackboard erasing device

Publications (1)

Publication Number Publication Date
CN201890033U true CN201890033U (en) 2011-07-06

Family

ID=44219509

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205995973U Expired - Fee Related CN201890033U (en) 2010-10-28 2010-10-28 Blackboard erasing device

Country Status (1)

Country Link
CN (1) CN201890033U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105059019A (en) * 2015-09-06 2015-11-18 重庆理工大学 Multi-piece dust-free electric white board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105059019A (en) * 2015-09-06 2015-11-18 重庆理工大学 Multi-piece dust-free electric white board

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110706

Termination date: 20111028