CN203995292U - A kind of asymmetric double-deck circulation blackboard - Google Patents

A kind of asymmetric double-deck circulation blackboard Download PDF

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Publication number
CN203995292U
CN203995292U CN201420387454.4U CN201420387454U CN203995292U CN 203995292 U CN203995292 U CN 203995292U CN 201420387454 U CN201420387454 U CN 201420387454U CN 203995292 U CN203995292 U CN 203995292U
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CN
China
Prior art keywords
blackboard
plate
blackboard plate
slideway
draw bar
Prior art date
Application number
CN201420387454.4U
Other languages
Chinese (zh)
Inventor
鲁红伟
邹奥运
尚随悦
Original Assignee
长安大学
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.)
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Publication date
Application filed by 长安大学 filed Critical 长安大学
Priority to CN201420387454.4U priority Critical patent/CN203995292U/en
Application granted granted Critical
Publication of CN203995292U publication Critical patent/CN203995292U/en

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Abstract

The utility model relates to a kind of Dual-layer blackboard, relate in particular to a kind of asymmetric double-deck circulation blackboard, the blackboard plate body support that comprises the blackboard plate body of two back side band hairbrush and be positioned at blackboard plate body both sides, in each blackboard plate body support inner side, offer parallel slideway, the spacing of this parallel slideway makes hairbrush and blackboard plate body Interference contact thereafter; Each blackboard plate body transverse ends is all stuck in the parallel slideway of blackboard plate body support inner side by long draw bar and short distractor bar, long draw bar and the short distractor bar of two blackboard plate body homonymies are crisscross arranged, and blackboard plate body can slide by the circulation of parallel slideway alternatively up and down; In the parallel slideway of every side, offer the gap that long draw bar is passed, long draw bar is connected with the driving-chain in blackboard plate body support outside through this gap, this driving-chain is fastened on two gears in blackboard plate body support outside, the utility model can be realized the function of blackboard automatic erasing out handwriting, to improve classroom teaching efficiency, useful teachers and students are healthy.

Description

A kind of asymmetric double-deck circulation blackboard

Technical field

The utility model relates to a kind of Dual-layer blackboard, relates in particular to a kind of asymmetric double-deck circulation blackboard.

Background technology

Dual-layer blackboard is a kind of new type blackboard that most schools classroom is generally used, it is formed by built-in pulley slideway and is fixed on the handle of blackboard by four blackboards up and down, realize blackboard lifting activity on fixing slideway, be convenient to teacher's written information, can demonstrate in time, but the maximum weak point of such blackboard is still to adopt common manual blackboard eraser to erase the board, not only time-consuming, and the powder of very easily kicking up, harm teachers and students are healthy.

Current existing circulation type self-wiping blackboard, as number of patent application 201110279150.7, only have when blackboard surface is stablized, could well write, because this product blackboard is to be driven by an iron bar, blackboard can be rotated around it, only have and be positioned at the top and during below when two simultaneously, their could Simultaneous Stabilization (this at present the top at the iron bar place of piece blackboard be that upper piece blackboard provides support, the angle bar of framework lower limb is that lower blackboard provides support), inconvenient operation.When two blackboards have larger area to overlap, they can rotate backward forward simultaneously, are not have good writing effect in this case.The height easy to use of joystick determined, lower blackboard need be bent over or couchant writing, quite inconvenient, also for watching, caused difficulty, not being suitable for teaching use.Although the use of joystick can be laborsaving, relatively take distance, and operation is not directly, conveniently.

Utility model content

The purpose of this utility model is to overcome above-mentioned prior art shortcoming, and a kind of asymmetric double-deck circulation blackboard that can realize blackboard automatic erasing out handwriting function is provided, and to improve classroom teaching efficiency, useful teachers and students are healthy.

For addressing the above problem, the technical scheme that the utility model is taked is: the blackboard plate body support that comprises the blackboard plate body of two back side band hairbrush and be positioned at blackboard plate body both sides, one side of blackboard plate body is provided with handle, in each blackboard plate body support inner side, offer parallel slideway, the spacing of this parallel slideway makes hairbrush and blackboard plate body Interference contact thereafter;

Described parallel slideway comprises long draw bar slideway and the short distractor bar slideway being crisscross arranged in each blackboard plate body support inner side, each blackboard plate body transverse ends is stuck in long draw bar slideway and short distractor bar slideway by long draw bar and short distractor bar respectively, and two blackboard plate bodys can slide by parallel slideway alternatively up and down circulation inside blackboard plate body support;

In the long draw bar slideway of every side, offer the gap that long draw bar is passed, long draw bar is connected with the driving-chain in blackboard plate body support outside through this gap, and this driving-chain is fastened on the gear corresponding with long draw bar slideway of blackboard plate body support outside.

Described long draw bar and short distractor bar are stuck in the long draw bar slideway and short distractor bar slideway of blackboard plate body support inner side by bearing respectively.

The long draw bar at every described blackboard plate body two ends and short distractor bar are diagonal angle and distribute.

Described hairbrush is sponge or rag.

The thickness of described hairbrush is more than or equal to two distances between blackboard plate body.

Described gear is flywheel, and the spacing between the gear in blackboard plate body support outside is greater than the height of a blackboard plate body.

Described driving-chain is roller chain.

Described long draw bar is fixed on roller chain by jump ring.

Described parallel slideway is by two overlapping forming of " O " type in the same degree of depth.

In the external stability of the gap of long draw bar slideway, have and prevent the inner fixed mount that departs from blackboard plate body support of slit.

Compared with prior art, the utlity model has following beneficial effect: the utility model is connected to blackboard plate body on driving-chain by long draw bar and short distractor bar, along with driving-chain rotates the Infinite Cyclic use that has realized blackboard plate body around gear, in cyclic process, before hairbrush after blackboard plate body be the blackboard erasing out handwriting of blackboard plate body below.Because driving-chain is along with gear is realized rotation, rotate one week, will form a circulation, in rotation, the long draw bar of every blackboard plate body staggers, form dissymmetrical structure, make it to be unlikely on an axle and rotate, because each long draw bar is subject to the dual fixing of slideway and driving-chain, stability is better, thereby is conducive to write on blackboard.In the process getting under another blackboard plate body at a blackboard plate body, the every bit being erased the board on the plate body relatively contact displacement of another piece blackboard plate body is all the width of monoblock blackboard plate body, not only wipe effect all identical, and have enough distances of wiping, guaranteed to a certain extent to clash well effect.

Further, because long draw bar and short distractor bar are diagonal angle, are distributed with and are beneficial to the stable of blackboard plate body.

Further, because gear is that flywheel is to prevent dry friction.

Accompanying drawing explanation

Fig. 1 is front view of the present utility model;

Fig. 2 is rearview of the present utility model;

Fig. 3 is top view of the present utility model;

Fig. 4 is that the A of the utility model Fig. 1 is to view;

Fig. 5 is that the B of the utility model Fig. 1 is to view;

Fig. 6 is that the C of the utility model Fig. 1 is to view;

Fig. 7 is that the D of the utility model Fig. 1 is to view;

Wherein, 1 is blackboard plate body, and 2 is blackboard plate body support, and 3 is long draw bar, and 4 is short distractor bar, and 5 is bearing, and 6 is driving-chain, and 7 is fixed mount, and 8 is hairbrush, and 9 is gear.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further details:

Referring to Fig. 1 to Fig. 7, the utility model comprises the blackboard plate body 1 of two back side band hairbrush 8 and is positioned at the blackboard plate body support 2 of blackboard plate body 1 both sides, in a side of blackboard plate body 1, is provided with handle; In each blackboard plate body support 2 inner side, offer parallel slideway, this parallel slideway is by two overlapping forming of " O " type in the same degree of depth, and the spacing of this parallel slideway makes hairbrush 8 and blackboard plate body 1 Interference contact thereafter; This parallel slideway comprises long draw bar slideway and the short distractor bar slideway being crisscross arranged in each blackboard plate body support 2 inner side, the long draw bar 3 of each blackboard plate body 1 transverse ends and short distractor bar 4 are stuck in long draw bar slideway and short distractor bar slideway by bearing 5 respectively, and the long draw bar 3 at every blackboard plate body 1 two ends and short distractor bar 4 are diagonal angle and distribute, because each long draw bar is subject to the dual fixing of slideway and roller chain, stability is better, its diagonal angle is distributed and is more conducive to the stable of blackboard, especially at slideway turning, thereby be conducive to write on blackboard.Two blackboard plate bodys 1 can slide by the 2 inner side parallel slideway alternatively up and down circulations of blackboard plate body support; In long draw bar slideway, offer the gap that long draw bar 3 is passed, long draw bar 3 is connected with the roller chain in blackboard plate body support 2 outsides by jump ring through this gap, this roller chain is fastened on two flywheels corresponding with long draw bar slideway of blackboard plate body support 2 outsides, the distance being connected between flywheel is slightly larger than the height of a blackboard plate body, in the external stability of the gap of long draw bar slideway, has and prevents the inner fixed mount 7 that departs from blackboard plate body support 2 of slit.

Operation principle of the present utility model: the utility model is connected to blackboard plate body on driving-chain by long draw bar and short distractor bar, along with driving-chain rotates the Infinite Cyclic use that has realized blackboard plate body around gear, the size of tooth radius has determined the spacing of two blackboards, thereby determine that hairbrush is to the pressure being erased the board, the stool and urine of the radius by suitable adjustment gear can be obtained the good effect of wiping, in the process getting under another blackboard plate body at a blackboard plate body, the every bit being erased the board on the plate body relatively contact displacement of another piece blackboard plate body is all the width of monoblock blackboard, not only wipe effect all identical, and there are enough distances of wiping, guaranteed to a certain extent to clash well effect.Be fixed on the larger width of the bearing on roller chain, and the intensity of roller chain can guarantee fixed traction bar well, thereby blackboard can enough be stablized.

Claims (10)

1. an asymmetric double-deck circulation blackboard, it is characterized in that: comprise the blackboard plate body (1) of two back side band hairbrush (8) and the blackboard plate body support (2) that is positioned at blackboard plate body (1) both sides, one side of blackboard plate body (1) is provided with handle, in each blackboard plate body support (2) inner side, offer parallel slideway, the spacing of this parallel slideway makes hairbrush (8) and blackboard plate body (1) Interference contact thereafter;
Described parallel slideway comprises long draw bar slideway and the short distractor bar slideway being crisscross arranged in each blackboard plate body support (2) inner side, each blackboard plate body (1) transverse ends is stuck in long draw bar slideway and short distractor bar slideway by long draw bar (3) and short distractor bar (4) respectively, and two blackboard plate bodys (1) can slide by the parallel slideway alternatively up and down circulation of blackboard plate body support (2) inner side;
In the long draw bar slideway of every side, offer the gap that long draw bar (3) is passed, long draw bar (3) is connected with the driving-chain (6) in blackboard plate body support (2) outside through this gap, and this driving-chain (6) is fastened on the gear (9) corresponding with long draw bar slideway of blackboard plate body support (2) outside.
2. a kind of asymmetric double-deck circulation blackboard according to claim 1, is characterized in that: described long draw bar (3) and short distractor bar (4) are stuck in the long draw bar slideway and short distractor bar slideway of blackboard plate body support (2) inner side by difference bearing (5).
3. a kind of asymmetric double-deck circulation blackboard according to claim 1, is characterized in that: the long draw bar (3) at described every blackboard plate body (1) two ends and short distractor bar (4) are diagonal angle and distribute.
4. a kind of asymmetric double-deck circulation blackboard according to claim 1, is characterized in that: described hairbrush (8) is sponge or rag.
5. a kind of asymmetric double-deck circulation blackboard according to claim 1, is characterized in that: the thickness of described hairbrush (8) is more than or equal to the distance between two blackboard plate bodys (1).
6. a kind of asymmetric double-deck circulation blackboard according to claim 1, is characterized in that: described gear (9) is flywheel, and the spacing between the gear in blackboard plate body support (2) outside is greater than the height of a blackboard plate body.
7. a kind of asymmetric double-deck circulation blackboard according to claim 1, is characterized in that: described driving-chain (6) is roller chain.
8. according to a kind of asymmetric double-deck circulation blackboard described in claim 1 or 7, it is characterized in that: described long draw bar (3) is fixed on roller chain by jump ring.
9. a kind of asymmetric double-deck circulation blackboard according to claim 1, is characterized in that: described parallel slideway is by two overlapping forming of " O " type in the same degree of depth.
10. a kind of asymmetric double-deck circulation blackboard according to claim 1, is characterized in that: in the external stability of the gap of long draw bar slideway, have and prevent the inner fixed mount (7) that departs from blackboard plate body support (2) of slit.
CN201420387454.4U 2014-07-14 2014-07-14 A kind of asymmetric double-deck circulation blackboard CN203995292U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420387454.4U CN203995292U (en) 2014-07-14 2014-07-14 A kind of asymmetric double-deck circulation blackboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420387454.4U CN203995292U (en) 2014-07-14 2014-07-14 A kind of asymmetric double-deck circulation blackboard

Publications (1)

Publication Number Publication Date
CN203995292U true CN203995292U (en) 2014-12-10

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104985955A (en) * 2015-06-17 2015-10-21 南京工业职业技术学院 Intelligent blackboard
CN108973443A (en) * 2018-08-10 2018-12-11 张家诚 A kind of cyclic switching formula blackboard convenient for erasing
CN108973444A (en) * 2018-08-10 2018-12-11 张家诚 A kind of reciprocal suitching type is from erasing blackboard
CN110328990A (en) * 2019-06-28 2019-10-15 嘉兴悦珂贸易有限公司 A kind of electronic equipment and mobile unit using gesture operation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104985955A (en) * 2015-06-17 2015-10-21 南京工业职业技术学院 Intelligent blackboard
CN108973443A (en) * 2018-08-10 2018-12-11 张家诚 A kind of cyclic switching formula blackboard convenient for erasing
CN108973444A (en) * 2018-08-10 2018-12-11 张家诚 A kind of reciprocal suitching type is from erasing blackboard
CN110328990A (en) * 2019-06-28 2019-10-15 嘉兴悦珂贸易有限公司 A kind of electronic equipment and mobile unit using gesture operation

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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: 20141210

Termination date: 20160714