CN2628282Y - Automatic removing chalk dust blackboard eraser capable of rolling inversely - Google Patents
Automatic removing chalk dust blackboard eraser capable of rolling inversely Download PDFInfo
- Publication number
- CN2628282Y CN2628282Y CN 03218064 CN03218064U CN2628282Y CN 2628282 Y CN2628282 Y CN 2628282Y CN 03218064 CN03218064 CN 03218064 CN 03218064 U CN03218064 U CN 03218064U CN 2628282 Y CN2628282 Y CN 2628282Y
- Authority
- CN
- China
- Prior art keywords
- rolling
- tube
- dust
- blackboard eraser
- wiping
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
An automatic removing chalk dust blackboard eraser capable of rolling inversely is provided and comprises a frame shell body, a frame shell body cover, a rolling eraser cylinder arranged in the frame shell body, a dust cleaning brush and a dust collecting box. A positioning pin is arranged on the rolling eraser cylinder body and a rolling bearing is arranged at the two ends of the rolling eraser cylinder body. The rolling bearing is positioned in the bearing seat and is fixed through the bearing seat cover. The dust cleaning brush is closely clung to the rolling eraser cylinder body. The frame shell body is provided with an opening. A part of the rolling eraser cylinder extends out of the frame shell body opening. An arc-shaped dust baffle plate is arranged at the opening. The utility model can prevent chalk dust from flying everywhere when the blackboard is being wiped and the wiping neatness is greatly improved.
Description
Technical field
The utility model relates to a kind of teaching aid.
Background technology
When the schoolman gave a lesson blackboard wiping for a long time, chalk dust flew upward everywhere, the generation harmful effect healthy to teachers and students, and traditional blackboard eraser can't address this problem.
Summary of the invention
The purpose of this utility model provides a kind of automatic dust-removing blackboard eraser of reversible rolling of sanitation and hygiene, the problem that chalk dust flew upward when it can solve blackboard wiping effectively everywhere.
For achieving the above object, the utility model adopts following its structure: the automatic dust-removing blackboard eraser of reversible rolling, comprise the frame housing, be covered on the frame case lid on the frame housing, tube, deashing brush, ash collecting box are wiped in the bearing block, pedestal cap, the rolling that are arranged in the frame housing; The cylindrical shell that tube is wiped in rolling is provided with alignment pin, rolling bearing is installed at its two ends, and rolling bearing places bearing block, fixed by pedestal cap, and the deashing brush being close to the cylindrical shell that tube is wiped in rolling; The frame housing has an opening, and the part of wiping tube of rolling stretches out in outside the frame shell nozzle, and opening part is provided with dust block board.
Described dust block board is circular arc type and is close to roll and wipes the cylindrical shell of tube.
Offer the grey passage of collection on the described ash collecting box.
When using this blackboard eraser blackboard wiping, the wiping tube that rolls is rolled to certain angle earlier, alignment pin is stuck on the housing, dragging blackboard eraser is wiped the powder ash on the blackboard by the wiping tube that rolls, realizing thus rolls wipes the left and right bidirectional rolling of tube, and the powder ash of wiping is brought in the housing, and the deashing brush sweeps ash collecting box with the powder ash automatically, the powder ash flies upward everywhere when having avoided blackboard wiping, has improved the degree of cleaning of blackboard again greatly.Another characteristics of this blackboard eraser are the size shape that keep traditional blackboard to wipe, and meet the custom of teacher's blackboard wiping.
Description of drawings
Fig. 1 is that the master of the automatic dust-removing blackboard eraser of reversible rolling looks cutaway view.
Fig. 2 is the cutaway view along A-A direction among Fig. 1.
Fig. 3 is the cutaway view along B-B direction among Fig. 1.
Fig. 4 is the cutaway view along C-C direction among Fig. 1.
The specific embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the automatic dust-removing blackboard eraser of reversible rolling, its member comprise frame housing 8, roll and wipe tube 5, rolling bearing 6, pedestal cap 2, deashing brush 3, frame case lid 1, ash collecting box 10, dust block board 7, alignment pin 4, bearing block 9.Rolling bearing 6 is installed in to roll wipes tube 5 two ends, and bearing block 9 is fixed in the frame housing 8, and rolling bearing 6 is contained on the bearing block 9, and is with pedestal cap 2 that rolling bearing 6 is fixing again.Deashing brush 3 is fixed in the upper hole of pedestal cap 2, and its brush body part is close to the wiping tube 5 that rolls.The frame housing has an opening, and the part of wiping tube 5 of rolling stretches out in outside the frame shell nozzle, and opening part is provided with dust block board 7.For making sealing effectiveness better, dust block board 7 is designed to circular arc type and is close to roll and wipes tube 5.
The operation principle of this blackboard eraser is as follows: when to the right blackboard wiping, roll and wipe tube 5 after angle of left side rotation, the alignment pin of wiping on the tube 54 that rolls snaps on the frame housing 8, and the wiping tube 5 that rolls stops operating and begins blackboard wiping; When again to the left side blackboard wiping, roll and wipe tube 5 elder generations after angle of the right rotation, the alignment pin of wiping on the tube 54 that rolls snaps on the frame housing 8, and rolling wiping tube 5 stops operating and begins blackboard wiping.In roll wiping the tube rotation process powder ash of wiping is brought in the frame housing 8, the deashing brush 3 powder ash of wiping on the tube 5 that will roll is cleared away automatically, falls into ash collecting box 10 by collecting grey passage 11.The powder ash flies upward everywhere when so both having avoided blackboard wiping, can improve degree of cleaning greatly again.When the powder ash was filled ash collecting box 10, desirable lower bearing bracket case lid 1 was poured out it.
Claims (3)
1, the automatic dust-removing blackboard eraser of reversible rolling is characterized in that: comprise the frame housing, be covered on the frame case lid on the frame housing, tube, deashing brush, ash collecting box are wiped in the bearing block, pedestal cap, the rolling that are arranged in the frame housing; The cylindrical shell that tube is wiped in rolling is provided with alignment pin, rolling bearing is installed at its two ends, and rolling bearing places bearing block, fixed by pedestal cap, and the deashing brush being close to the cylindrical shell that tube is wiped in rolling; The frame housing has an opening, and the part of wiping tube of rolling stretches out in outside the frame shell nozzle, and opening part is provided with dust block board.
2, the automatic dust-removing blackboard eraser of reversible rolling according to claim 1 is characterized in that: described dust block board is circular arc type and is close to roll and wipes the cylindrical shell of tube.
3, the automatic dust-removing blackboard eraser of reversible rolling according to claim 1 is characterized in that: offer the grey passage of collection on the described ash collecting box.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 03218064 CN2628282Y (en) | 2003-06-09 | 2003-06-09 | Automatic removing chalk dust blackboard eraser capable of rolling inversely |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 03218064 CN2628282Y (en) | 2003-06-09 | 2003-06-09 | Automatic removing chalk dust blackboard eraser capable of rolling inversely |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2628282Y true CN2628282Y (en) | 2004-07-28 |
Family
ID=34243827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 03218064 Expired - Fee Related CN2628282Y (en) | 2003-06-09 | 2003-06-09 | Automatic removing chalk dust blackboard eraser capable of rolling inversely |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2628282Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103847377A (en) * | 2014-02-17 | 2014-06-11 | 浙江海洋学院 | Multifunctional blackboard eraser cleaning equipment |
-
2003
- 2003-06-09 CN CN 03218064 patent/CN2628282Y/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103847377A (en) * | 2014-02-17 | 2014-06-11 | 浙江海洋学院 | Multifunctional blackboard eraser cleaning equipment |
CN103847377B (en) * | 2014-02-17 | 2016-04-06 | 浙江海洋学院 | A kind of multi-functional board wiper cleaning equipment |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |