CN203637409U - Blackboard eraser with mechanical structure - Google Patents
Blackboard eraser with mechanical structure Download PDFInfo
- Publication number
- CN203637409U CN203637409U CN201320849505.6U CN201320849505U CN203637409U CN 203637409 U CN203637409 U CN 203637409U CN 201320849505 U CN201320849505 U CN 201320849505U CN 203637409 U CN203637409 U CN 203637409U
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- CN
- China
- Prior art keywords
- dust
- box
- blackboard eraser
- ratchet
- hairbrush
- 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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Abstract
The utility model discloses a blackboard eraser with a mechanical structure. The blackboard eraser comprises a box body and a hairbrush installed on the bottom of the box body, and is characterized in that the box body comprises a dust storage box and dust-absorbing boxes at two ends of the dust storage box, the dust-absorbing box communicates with the dust storage box through a dust storage opening, the bottom of the dust storage box recesses inward to form an installation groove, a cylindrical wheel is laterally installed in the installation groove, both ends of the cylindrical wheel are respectively connected with the left and right walls of the installation groove through a rotating shaft extending into the dust-absorbing boxes, the extending sections of the rotating shaft are connected with vanes through gear sets, the central section of the hairbrush is opened with the opening facing the cylindrical wheel, the lower portion of the cylindrical wheel is exposed out of the opening, and the outer walls of the dust-absorbing boxes are each provided with an opening facing the vanes. The blackboard eraser with a mechanical structure is easy to clean, automatically absorbs dust during erasing a blackboard, uses no battery and saves resources.
Description
Technical field
The utility model belongs to blackboard eraser technical field, specifically, relates to a kind of frame for movement blackboard eraser.
Background technology
No matter blackboard wiping is the class period, or the play time, the time of blackboard wiping is all very compact, student or teacher can select wiping rapidly, and in rapid wiping process, the amplitude of wiping is large, cause dust to fly upward everywhere, can produce a large amount of chalk dust, and human body sucks too much chalk dust and can cause great bodily injury to health, at present many blackboard erasers, mounted motor carries out the suction of chalk dust, but, motor need to be switched on and could be moved, and tends to long-term lasting replacing battery, waste resource.
Utility model content
For solving above technical problem, it is a kind of without electronic drive that the purpose of this utility model is to provide, the frame for movement blackboard eraser of auto-pumping chalk dust in wiping process.
The utility model object is achieved in that a kind of frame for movement blackboard eraser, comprise box body and the hairbrush that is arranged on box bottom, its key is: described box body comprises dust-collecting box and is arranged on the dust-absorbing box at dust-collecting box two ends, described dust-absorbing box communicates by storage dirt mouth with described dust-collecting box, the bottom indent of described dust-collecting box forms mounting groove, in described mounting groove, be horizontally installed with cylindricality wheel, the two ends of described cylindricality wheel are connected with Zuo Bi and the right wall of described mounting groove respectively by rotating shaft, this rotating shaft is stretched in described dust-absorbing box, the dip section of described rotating shaft is connected with flabellum by gear train, described hairbrush is domes, the arch mouth of this hairbrush lays respectively at the left and right sides of box body, this hairbrush middle part is uncovered, this is uncovered just to described cylindricality wheel, the bottom of this cylindricality wheel is exposed described uncovered, the outer wall of described dust-absorbing box is provided with opening, this opening is just to described flabellum.
Adopt said structure, in blackboard wiping process, hairbrush has certain elasticity, and hairbrush is close to blackboard, and under the effect of pressure, cylindricality wheel is close to blackboard, and blackboard eraser moves, and cylindricality wheel rolls and drives flabellum to rotate, and carries out the suction of chalk dust.
The driven gear that said gear group comprises driving gear and engages with this driving gear, described driving gear is solidly set in described rotating shaft, on the Zuo Bi of described mounting groove and right wall, all by bearing block, bull stick is installed, described driven gear is set on described bull stick by interior mesh ratchet gear mechanism, and described flabellum is solidly set on described bull stick.Above-mentioned ratchet mechanism comprises ratchet and pawl, and described ratchet is fixedly connected with described driven gear, and described ratchet is fixedly connected with described bull stick.
Adopt said structure, cylindricality wheel rotates by gear driven flabellum, and interior mesh ratchet gear mechanism can guarantee flabellum single direction rotation, only carries out the suction of chalk dust.
Above-mentioned storage dirt mouth place envelope has " n " font block, and in this block, being provided with cross section is trapezoidal through hole, and this through hole osculum end is towards box body middle part.
Adopt said structure, can prevent that chalk dust from flowing backwards.
The end face of above-mentioned dust-collecting box is uncovered, this uncovered slip lid that is provided with.
Adopt said structure, sliping off slip lid can remove thoroughly to the chalk dust in blackboard eraser.
Beneficial effect: a kind of frame for movement blackboard eraser of the utility model, easy to clean, can be in the process erasing the board automatic dust absorption, do not use battery, economize on resources.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the assembling schematic diagram of driven gear and ratchet mechanism in Fig. 1.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2: a kind of frame for movement blackboard eraser, formed by box body and the hairbrush 1 that is arranged on box bottom, described box body is made up of dust-collecting box 2a and the dust-absorbing box 2b that is arranged on dust-collecting box 2a two ends, described dust-absorbing box 2b communicates by storage dirt mouth with described dust-collecting box 2a, described storage dirt mouth place envelope has " n " font block 11, and in this block 11, being provided with cross section is trapezoidal through hole 12, and these through hole 12 osculum ends are towards box body middle part, the end face of described dust-collecting box 2a is uncovered, this uncovered slip lid 13 that is provided with.
As illustrated in fig. 1 and 2, the bottom indent of described dust-collecting box 2a forms mounting groove 2c, in described mounting groove 2c, be horizontally installed with cylindricality wheel 3, the two ends of described cylindricality wheel 3 are connected with Zuo Bi and the right wall of described mounting groove 2c respectively by rotating shaft 3a, this rotating shaft 3a stretches in described dust-absorbing box 2b, the dip section of described rotating shaft 3a is connected with flabellum 4 by gear train, the driven gear 7 that described gear train comprises driving gear 6 and engages with this driving gear 6, described driving gear 6 is solidly set on described rotating shaft 3a, on the Zuo Bi of described mounting groove 2c and right wall, all by bearing block, bull stick 8 is installed, described driven gear 7 is set on described bull stick 8 by interior mesh ratchet gear mechanism, described flabellum 4 is solidly set on described bull stick 8, the outer wall of described dust-absorbing box 2b is provided with opening 5, and this opening 5 is just to described flabellum 4, described hairbrush 1 is domes, and the arch mouth of this hairbrush 1 lays respectively at the left and right sides of box body, and this hairbrush 1 middle part is uncovered, and this is uncovered just to described cylindricality wheel 3, and the bottom of this cylindricality wheel 3 is exposed described uncovered.
As shown in Figure 3, described ratchet mechanism comprises ratchet 9 and ratchet 10, and described ratchet 9 is fixedly connected with described driven gear 7, and described ratchet 10 is fixedly connected with described bull stick 8.
Claims (5)
1. a frame for movement blackboard eraser, comprise box body and the hairbrush (1) that is arranged on box bottom, it is characterized in that: described box body comprises dust-collecting box (2a) and is arranged on the dust-absorbing box (2b) at dust-collecting box (2a) two ends, described dust-absorbing box (2b) communicates by storage dirt mouth with described dust-collecting box (2a), the bottom indent of described dust-collecting box (2a) forms mounting groove (2c), in described mounting groove (2c), be horizontally installed with cylindricality wheel (3), the two ends of described cylindricality wheel (3) are connected with Zuo Bi and the right wall of described mounting groove (2c) respectively by rotating shaft (3a), this rotating shaft (3a) is stretched in described dust-absorbing box (2b), the dip section of described rotating shaft (3a) is connected with flabellum (4) by gear train, described hairbrush (1) is domes, the arch mouth of this hairbrush (1) lays respectively at the left and right sides of box body, this hairbrush (1) middle part is uncovered, this is uncovered just to described cylindricality wheel (3), the bottom of this cylindricality wheel (3) is exposed described uncovered, the outer wall of described dust-absorbing box (2b) is provided with opening (5), this opening (5) is just to described flabellum (4).
2. frame for movement blackboard eraser according to claim 1, it is characterized in that: the driven gear (7) that described gear train comprises driving gear (6) and engages with this driving gear (6), described driving gear (6) is solidly set in described rotating shaft (3a), on the Zuo Bi of described mounting groove (2c) and right wall, all by bearing block, bull stick (8) is installed, it is upper that described driven gear (7) is set in described bull stick (8) by interior mesh ratchet gear mechanism, and described flabellum (4) is solidly set on described bull stick (8).
3. frame for movement blackboard eraser according to claim 2, it is characterized in that: described ratchet mechanism comprises ratchet (9) and ratchet (10), described ratchet (9) is fixedly connected with described driven gear (7), and described ratchet (10) is fixedly connected with described bull stick (8).
4. frame for movement blackboard eraser according to claim 1, is characterized in that: described storage dirt mouth place envelope has " n " font block (11), and in this block (11), being provided with cross section is trapezoidal through hole (12), and this through hole (12) osculum end is towards box body middle part.
5. frame for movement blackboard eraser according to claim 1, is characterized in that: the end face of described dust-collecting box (2a) is uncovered, this uncovered slip lid (13) that is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849505.6U CN203637409U (en) | 2013-12-20 | 2013-12-20 | Blackboard eraser with mechanical structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849505.6U CN203637409U (en) | 2013-12-20 | 2013-12-20 | Blackboard eraser with mechanical structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203637409U true CN203637409U (en) | 2014-06-11 |
Family
ID=50868685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320849505.6U Expired - Fee Related CN203637409U (en) | 2013-12-20 | 2013-12-20 | Blackboard eraser with mechanical structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203637409U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532293A (en) * | 2018-12-20 | 2019-03-29 | 苏冬梅 | A kind of self-dust absorption type environment-friendly dust-proof eraser |
| CN113043769A (en) * | 2021-05-13 | 2021-06-29 | 吉林师范大学 | Multimedia teaching blackboard |
| CN113781902A (en) * | 2021-09-17 | 2021-12-10 | 北京三月雨文化传播有限责任公司 | Multi-media exhibition room is with multi-functional AR display screen |
-
2013
- 2013-12-20 CN CN201320849505.6U patent/CN203637409U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532293A (en) * | 2018-12-20 | 2019-03-29 | 苏冬梅 | A kind of self-dust absorption type environment-friendly dust-proof eraser |
| CN113043769A (en) * | 2021-05-13 | 2021-06-29 | 吉林师范大学 | Multimedia teaching blackboard |
| CN113781902A (en) * | 2021-09-17 | 2021-12-10 | 北京三月雨文化传播有限责任公司 | Multi-media exhibition room is with multi-functional AR display screen |
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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 |
Granted publication date: 20140611 Termination date: 20141220 |
|
| EXPY | Termination of patent right or utility model |