CN203832079U - Turnover blackboard - Google Patents

Turnover blackboard Download PDF

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Publication number
CN203832079U
CN203832079U CN201420239598.5U CN201420239598U CN203832079U CN 203832079 U CN203832079 U CN 203832079U CN 201420239598 U CN201420239598 U CN 201420239598U CN 203832079 U CN203832079 U CN 203832079U
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CN
China
Prior art keywords
blackboard
moulding
turnover
frame
eraser
Prior art date
Application number
CN201420239598.5U
Other languages
Chinese (zh)
Inventor
汤迎红
刘雨蒙
邓叶舟
Original Assignee
湖南工业大学
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 湖南工业大学 filed Critical 湖南工业大学
Priority to CN201420239598.5U priority Critical patent/CN203832079U/en
Application granted granted Critical
Publication of CN203832079U publication Critical patent/CN203832079U/en

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Abstract

The utility model relates to a turnover blackboard. The turnover blackboard comprises a blackboard frame and a plurality of blackboard strips. The blackboard frame is composed of an upper frame strip, a lower frame strip, a left frame strip and a right frame strip. The left frame strip and the right frame strip are correspondingly provided with a plurality of through holes, the middle portions of the two ends of the blackboard strips are provided with inserted pins matched with the through holes respectively, the inserted pin on one end side of each blackboard strip is fixedly provided with a turnover gear, each turnover gear is meshed with a turnover rack, and the turnover racks are connected with a linear motor through a transmission mechanism. The two faces of the turnover blackboard can be turned over for use, so that space is saved, and coincidence of a multimedia projection plane and the blackboard is avoided.

Description

A kind of turnover blackboard
Technical field
The utility model relates to teaching field, especially a kind of turnover blackboard.
Background technology
Over more than 200 year, blackboard from the earliest with blacking, spread upon plank, the hard objects such as cement surface, to the water mill glass of the nineties, color coated steel sheet, composite panel etc., witness the development step by step of world's educational undertaking, for the mankind convey knowledge, universal education, has made distinctions won on the battlefield.
The kind of blackboard also starts to become complicated various now, from color minute, has blackboard, green plate, blank etc., from surface configuration minute, has surface plate, cambered plate etc., from structure composition minute, has support portable plate, draw back plate, lifter plate, magnet board etc.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of turnover blackboard, realizes two sides upset and uses, and saves space, avoids the coincidence of multimedia overhead projector face and blackboard.
The utility model adopts following scheme to realize: a kind of turnover blackboard, it is characterized in that: comprise a blackboard frame and a plurality of blackboard bar, described blackboard frame is by upper frame bar, lower moulding, left moulding and right moulding form, described left moulding and right moulding correspondence are provided with plurality of through holes, described a plurality of blackboard bars two ends middle parts is respectively equipped with and is beneficial to the latch that coordinates with described through hole, the distolateral latch of described a plurality of blackboard bar one is fixed with respectively turning gear, described turning gear and a upset tooth bar engagement, described upset tooth bar is connected with linear electric motors by transmission mechanism.
In the utility model one embodiment, described turnover blackboard one side is also provided with a transmission blackboard eraser, described transmission blackboard eraser comprises a vertical bar shape body, described vertical bar shape body upper end side is provided with directive wheel, described vertical bar shape body lower end side is provided with support wheel, described vertical bar shape body interior is provided with two drum erasers, described drum eraser connects a drive unit, on described vertical bar shape body, be also fixed with a nut, described nut and screw mandrel are connected, and described screw mandrel is through the left moulding of described blackboard frame and right moulding, described screw mandrel one side is connected with one first motor by shaft coupling.
In the utility model one embodiment, described directive wheel rolls in the gathering sill of described upper frame bar, and described support wheel rolls in the gathering sill of described lower moulding.
In the utility model one embodiment, described drive unit comprises one second motor, and described the second motor is provided with a driving gear, described driving gear and two driven gear engagements, and described two driven gears are individually fixed on the axle of described two drum erasers.
In the utility model one embodiment, on described transmission blackboard eraser, be also provided with a dust exhaust apparatus.
Compared with prior art, the utlity model has following advantage:
1, two sides upset is used, and saves space, avoids the coincidence of multimedia overhead projector face and blackboard;
2, dustless back side wiping, adopts two drum eraser High Rotation Speeds of a driven by motor, and wiping is cleaner;
3, drum eraser transmission device (and dust arrester) is arranged in to the Lower Half of drum eraser and under feed screw nut's kinematic pair; Make drum eraser steady on the one hand, the weight that bottom support wheel has born blackboard eraser on the other hand, avoids screw mandrel to suffer the power of vertical direction to affect transmission.
Accompanying drawing explanation
Fig. 1 is the utility model Facad structure schematic diagram.
Fig. 2 is the structure schematic diagram of the utility model one embodiment.
Fig. 3 is the structural representation of the utility model drive unit.
Fig. 4 is the structure schematic diagram of another embodiment of the utility model.
Illustrate: 11-blackboard frame, 12-blackboard bar, 13-turning gear, the 14-tooth bar that overturns, 15-linear electric motors, 21-vertical bar shape body, 22-directive wheel, 23-support wheel, 24-drum eraser, 25-drive unit, 26-nut, 27-screw mandrel, 28-the first motor, 29-shaft coupling, 251-the second motor, 252-driving gear, 253-the first driven gear, 254-the second driven gear.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below will, by specific embodiment and relevant drawings, the utility model be described in further detail.
As shown in Figure 1, the utility model provides a kind of turnover blackboard, comprise a blackboard frame 11 and a plurality of blackboard bar 12, described blackboard frame 11 is by upper frame bar, lower moulding, left moulding and right moulding form, described left moulding and right moulding correspondence are provided with plurality of through holes, described a plurality of blackboard bar 12 middle parts, two ends are respectively equipped with and are beneficial to the latch that coordinates with described through hole, the distolateral latch of described a plurality of blackboard bar 12 1 is fixed with respectively turning gear 13, described turning gear 13 and upset tooth bar 14 engagements, described upset tooth bar 14 is connected with linear electric motors 15 by transmission mechanism.
As shown in Figure 2, described turnover blackboard one side is also provided with a transmission blackboard eraser, described transmission blackboard eraser comprises a vertical bar shape body 21, described vertical bar shape body 21 upper end side are provided with directive wheel 22, described vertical bar shape body 21 lower end side are provided with support wheel 23, described vertical bar shape body 21 inside are provided with two drum erasers 24, described drum eraser 24 connects a drive unit 25, on described vertical bar shape body 21, be also fixed with a nut 26, described nut 26 is connected with screw mandrel 27, and described screw mandrel 27 is through the left moulding of described blackboard frame 11 and right moulding, described screw mandrel 27 1 sides are connected with one first motor 28 by shaft coupling 29.Described directive wheel 22 rolls in the gathering sill of described upper frame bar, and described support wheel 23 rolls in the gathering sill of described lower moulding.
As shown in Figure 3, described drive unit 25 comprises one second motor 251, described the second motor 251 is provided with a driving gear 252, described driving gear 252 and two driven gears (the first driven gear 253 and the second driven gear 254) engagement, described two driven gears are individually fixed on the axle of described two drum erasers 24.
As shown in Figure 4, be also provided with a dust exhaust apparatus 30 on described transmission blackboard eraser, described dust exhaust apparatus 30 reclaims by dust sucting pipeline 31 dust producing after drum eraser 24 wipings.
Turnover blackboard of the present utility model, by the upset of cuboid blackboard bar, is realized the function that two sides is used; The upset of blackboard bar is that the rotation by the rectilinear motion driven gear of tooth bar realizes; Gear Rotate 180 degree, cuboid blackboard bar rotates to the another side of wiping clean.
The wiping of turnover blackboard is wiping behind, as shown in Figure 2, starts the first motor, and rotatablely moving of screw mandrel drives nut rectilinear motion, and directive wheel and support wheel roll in gathering sill separately, realize the left and right translation of blackboard eraser.The bottom design of blackboard eraser two support wheels, be used for supporting the weight of blackboard eraser, avoid screw mandrel to suffer the power of vertical direction, avoid the transmission of screw mandrel deformation effect.Blackboard eraser is that two circular drum are wiped, and by the second motor (micromotor), through driving gear, drives the first driven gear and the second driven gear fast rotational, has guaranteed the clean level erasing the board.In addition, dust exhaust apparatus can also be equipped with in the back side of blackboard eraser, guarantees the clean environmental protection of wiping process.
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; institute is understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (5)

1. a turnover blackboard, it is characterized in that: comprise a blackboard frame and a plurality of blackboard bar, described blackboard frame consists of upper frame bar, lower moulding, left moulding and right moulding, described left moulding and right moulding correspondence are provided with plurality of through holes, described a plurality of blackboard bars two ends middle parts is respectively equipped with and is beneficial to the latch that coordinates with described through hole, the distolateral latch of described a plurality of blackboard bar one is fixed with respectively turning gear, described turning gear and a upset tooth bar engagement, described upset tooth bar is connected with linear electric motors by transmission mechanism.
2. a kind of turnover blackboard according to claim 1, it is characterized in that: described turnover blackboard one side is also provided with a transmission blackboard eraser, described transmission blackboard eraser comprises a vertical bar shape body, described vertical bar shape body upper end side is provided with directive wheel, described vertical bar shape body lower end side is provided with support wheel, described vertical bar shape body interior is provided with two drum erasers, described drum eraser connects a drive unit, on described vertical bar shape body, be also fixed with a nut, described nut and screw mandrel are connected, and described screw mandrel is through the left moulding of described blackboard frame and right moulding, described screw mandrel one side is connected with one first motor by shaft coupling.
3. a kind of turnover blackboard according to claim 2, is characterized in that: described directive wheel rolls in the gathering sill of described upper frame bar, and described support wheel rolls in the gathering sill of described lower moulding.
4. a kind of turnover blackboard according to claim 2, it is characterized in that: described drive unit comprises one second motor, described the second motor is provided with a driving gear, described driving gear and two driven gear engagements, described two driven gears are individually fixed on the axle of described two drum erasers.
5. a kind of turnover blackboard according to claim 2, is characterized in that: on described transmission blackboard eraser, be also provided with a dust exhaust apparatus.
CN201420239598.5U 2014-05-12 2014-05-12 Turnover blackboard CN203832079U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420239598.5U CN203832079U (en) 2014-05-12 2014-05-12 Turnover blackboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420239598.5U CN203832079U (en) 2014-05-12 2014-05-12 Turnover blackboard

Publications (1)

Publication Number Publication Date
CN203832079U true CN203832079U (en) 2014-09-17

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Family Applications (1)

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CN201420239598.5U CN203832079U (en) 2014-05-12 2014-05-12 Turnover blackboard

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Country Link
CN (1) CN203832079U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105882244A (en) * 2016-04-12 2016-08-24 宿州学院 Reflection preventing blackboard
CN106626916A (en) * 2017-01-24 2017-05-10 南京工业职业技术学院 Remote-controlled rotary automatic erasing blackboard
CN107244509A (en) * 2017-08-04 2017-10-13 合肥千聚环保科技有限公司 A kind of rubbish automatic tipping device based on environmental protection
CN107471859A (en) * 2017-07-18 2017-12-15 安徽卓特信息技术有限公司 A kind of more black-boards
CN109493693A (en) * 2019-01-09 2019-03-19 陕西理工大学 Be conducive to improve the English-teaching aid of English Teaching Efficiency

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105882244A (en) * 2016-04-12 2016-08-24 宿州学院 Reflection preventing blackboard
CN105882244B (en) * 2016-04-12 2017-11-21 宿州学院 It is a kind of to avoid reflective blackboard
CN106626916A (en) * 2017-01-24 2017-05-10 南京工业职业技术学院 Remote-controlled rotary automatic erasing blackboard
CN107471859A (en) * 2017-07-18 2017-12-15 安徽卓特信息技术有限公司 A kind of more black-boards
CN107244509A (en) * 2017-08-04 2017-10-13 合肥千聚环保科技有限公司 A kind of rubbish automatic tipping device based on environmental protection
CN109493693A (en) * 2019-01-09 2019-03-19 陕西理工大学 Be conducive to improve the English-teaching aid of English Teaching Efficiency

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140917

Termination date: 20150512