CN205344259U - Blackboard eraser - Google Patents
Blackboard eraser Download PDFInfo
- Publication number
- CN205344259U CN205344259U CN201521050365.1U CN201521050365U CN205344259U CN 205344259 U CN205344259 U CN 205344259U CN 201521050365 U CN201521050365 U CN 201521050365U CN 205344259 U CN205344259 U CN 205344259U
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- guide rail
- blackboard
- eraser body
- crank
- 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
The utility model provides a blackboard eraser, including the long banding blackboard eraser body, the blackboard eraser position is above the blackboard face, the length of the blackboard eraser body is unanimous with the width of blackboard face, the blackboard eraser body coupling has the guide rail, the length direction of guide rail is unanimous with the length direction of the blackboard eraser body, the guide rail is through pivot and crank connection dead axle, articulate one end connects on the dead axle with rotatable mode and connected to the fence should be held to the articulate, the pivot is connected to the articulate other end, the guide rail horizontal slip is followed to the pivot cover on the guide rail, the one end of baffle coupling spring, the other end of spring is the stiff end, the both ends of the blackboard eraser body are provided with the gyro wheel, the both sides of blackboard face are provided with the slide rail, the gyro wheel slides from top to bottom at the slide rail, the utility model discloses not only can make the user keep away from the chalk dust, not need the drive of electric energy in addition, lean on the effect of gravity to realize blacking the board entirely, have the characteristics of environmental protection and energy saving.
Description
Technical field
This utility model belongs to realia technical field, particularly to a kind of blackboard eraser.
Background technology
At present, mostly the blackboard of school is that manual type is wiped clean with simple blackboard eraser, thus makes chalk dust easily fall on the person erased the board, brings impact to its health.Having the blackboard eraser of remote erasing, utilize Electric control more, not only cost is high, also expends electric power, for vast school inapplicable.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is in that to provide a kind of blackboard eraser, and dust can be avoided to fall on human body.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of blackboard eraser, blackboard eraser body 7 including strip, blackboard eraser body 7 is positioned at above blackboard panel 10, the length of blackboard eraser body 7 is consistent with the width of blackboard panel 10, blackboard eraser body 7 is connected to guide rail 6, the length direction of guide rail 6 is consistent with the length direction of blackboard eraser body 7, guide rail 6 connects dead axle 3 by rotating shaft 5 and crank 4, one end of crank 4 is connected on dead axle 3 in a rotatable manner and this end of crank 4 connects baffle plate 2, the other end connection rotating shaft 5 of crank 4, rotating shaft 5 is enclosed within guide rail 6 and horizontally slips along guide rail 6, baffle plate 2 connects one end of spring 1, the other end of spring 1 is fixing end, the two ends of blackboard eraser body 7 are provided with roller 9, the both sides of blackboard panel 10 are provided with slide rail 8, roller 9 slides up and down at slide rail 8.
Described baffle plate is connected to pallet 12 for 2 times, is furnished with weight 11 in pallet 12.
Described guide rail 6 is arc-shaped guide rail, and its protrusion direction is upwards.
Compared with prior art, this utility model not only can make user away from chalk dust, and need not the driving of electric energy, the full effect by gravity realizes erasing the board, and has the feature of environmental protection and energy saving.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is this utility model crank structure schematic diagram.
Fig. 3 is the fit structure schematic diagram of this utility model baffle plate and weight.
Detailed description of the invention
Embodiment of the present utility model is described in detail below in conjunction with drawings and Examples.
As shown in Figure 1, Figure 2 and Figure 3, a kind of blackboard eraser, blackboard eraser body 7 including strip, blackboard eraser body 7 is positioned at above blackboard panel 10, the length of blackboard eraser body 7 is consistent with the width of blackboard panel 10, blackboard eraser body 7 is connected to guide rail 6, the length direction of guide rail 6 is consistent with the length direction of blackboard eraser body 7, guide rail 6 connects dead axle 3 by rotating shaft 5 and crank 4, this end that one end of crank 4 is connected on dead axle 3 crank 4 in a rotatable manner connects baffle plate 2, baffle plate 2 and crank 4 are an entirety, can do the rotation of certain amplitude around dead axle 3.The other end connection rotating shaft 5 of crank 4, rotating shaft 5 is enclosed within guide rail 6 and horizontally slips along guide rail 6, and 6 is arc-shaped guide rail, and its protrusion direction is upwards.Baffle plate 2 connects the lower end of spring 1, and the upper end of spring 1 is fixing end, and the two ends of blackboard eraser body 7 are provided with roller 9, and the both sides of blackboard panel 10 are provided with slide rail 8, and roller 9 slides up and down at slide rail 8.
When erasing the board, spring 1 is in compressive state, by baffle plate 2, crank 4 and rotating shaft 5 so that blackboard eraser body 7 is raised to the top edge of blackboard panel 10.
When needs erase the board, spring 1 unclamps, and blackboard eraser body 7, due to action of gravity, makes two ends roller 9 glide along slide rail 8, and rotating shaft 3 is fixing so that blackboard eraser body 7 is rotated around dead axle 3 by crank 4, and rotating shaft 5 can move back and forth left and right on guide rail 6.In blackboard eraser body 7 downslide process, by reaching, with the rubbing action of blackboard panel 10, the purpose that erases the board.So, as long as when needs erase the board so that spring 1 unclamps, blackboard eraser body 7 just energy automatic blackboard cleaning, make people away from blackboard panel 10, away from chalk dust.
In this utility model, owing to the length of crank 4, flexibility are all fixing, so, when crank 4 drives blackboard eraser body 7 to move up and down, rotating shaft 5 must flow through moving left and right of guide rail 6 and realizes, otherwise blackboard eraser body 7 will be main by card after moving down a small distance, and can not make to move to the lower edge of blackboard panel 10.Such as, when erasing the board, the position of rotating shaft 5 is in the centre position of guide rail 6；When needing to erase the board and blackboard eraser body 7 moves to the lower edge of blackboard panel 10, the position of rotating shaft 5 also in the centre position of guide rail 6, and can not should be moved to the left a small distance around guide rail 6.Because the length camber of crank 4 is fixing, otherwise blackboard eraser body 7 can be stuck in certain position, centre of blackboard panel 10.
In conjunction with Fig. 3, in this utility model, baffle plate is connected to pallet 12 by steel wire 2 times, is furnished with weight 11, for instance ingot iron in pallet 12.
When erasing the board, putting into weight 11 in pallet 12 so that blackboard eraser body 7 can be raised, now, spring 1 is in the state of being stretched, and blackboard eraser body 7 is lifted to the upper edge of blackboard panel 10.
When needs erase the board, taking out weight 11, owing to losing weight so that blackboard eraser body 7 disequilibrium, under gravity, slide downward also rubs with blackboard panel 10, thus realizing the purpose erased the board.
After blackboard is complete by wiping, weight 11 is placed again in pallet 12, blackboard eraser body 7 can be lifted, in order to prevent speed when blackboard eraser body 7 returns to poised state too big, add spring 1, it is possible to reduce speed during return, thus preventing from coming off slide rail 8, and the phenomenon being spilled over.
Claims (3)
1. a blackboard eraser, blackboard eraser body (7) including strip, blackboard eraser body (7) is positioned at blackboard panel (10) top, the length of blackboard eraser body (7) is consistent with the width of blackboard panel (10), it is characterized in that, blackboard eraser body (7) is connected to guide rail (6), the length direction of guide rail (6) is consistent with the length direction of blackboard eraser body (7), guide rail (6) connects dead axle (3) by rotating shaft (5) and crank (4), one end of crank (4) is connected to dead axle (3) this end upper and crank (4) in a rotatable manner and connects baffle plate (2), the other end connection rotating shaft (5) of crank (4), rotating shaft (5) is enclosed within guide rail (6) and horizontally slips along guide rail (6), baffle plate (2) connects one end of spring (1), the other end of spring (1) is fixing end, the two ends of blackboard eraser body (7) are provided with roller (9), the both sides of blackboard panel (10) are provided with slide rail (8), roller (9) slides up and down at slide rail (8).
2. blackboard eraser according to claim 1, it is characterised in that be connected to pallet (12) under described baffle plate (2), be furnished with weight (11) in pallet (12).
3. blackboard eraser according to claim 1, it is characterised in that described guide rail (6) is arc-shaped guide rail, and its protrusion direction is upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521050365.1U CN205344259U (en) | 2015-12-15 | 2015-12-15 | Blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521050365.1U CN205344259U (en) | 2015-12-15 | 2015-12-15 | Blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205344259U true CN205344259U (en) | 2016-06-29 |
Family
ID=56168310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521050365.1U Expired - Fee Related CN205344259U (en) | 2015-12-15 | 2015-12-15 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205344259U (en) |
-
2015
- 2015-12-15 CN CN201521050365.1U patent/CN205344259U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20181215 |