CN202727738U - Rotary blackboard - Google Patents

Rotary blackboard Download PDF

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Publication number
CN202727738U
CN202727738U CN 201220418514 CN201220418514U CN202727738U CN 202727738 U CN202727738 U CN 202727738U CN 201220418514 CN201220418514 CN 201220418514 CN 201220418514 U CN201220418514 U CN 201220418514U CN 202727738 U CN202727738 U CN 202727738U
Authority
CN
China
Prior art keywords
blackboard
cloth
rolling curtain
rotary
rolling shaft
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
Application number
CN 201220418514
Other languages
Chinese (zh)
Inventor
袁静静
汤正义
邢斌
Original Assignee
袁静静
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 袁静静 filed Critical 袁静静
Priority to CN 201220418514 priority Critical patent/CN202727738U/en
Application granted granted Critical
Publication of CN202727738U publication Critical patent/CN202727738U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a rotary blackboard, belongs to teaching equipment and particularly relates to a rotary blackboard capable of automatically lifting and rolling and adjusting the length. The rotary blackboard is characterized in that a piece of blackboard cloth and cloth pressing pieces are fixedly arranged between an upper rolling curtain shaft and a lower rolling curtain shaft which are fixedly arranged on a wall surface in parallel; the blackboard cloth is at least 1.5 times as long as the distance between the upper and lower rolling curtain shafts; pulleys are respectively fixedly arranged at the corresponding positions of the right ends of the upper and lower rolling curtain shafts; a driving belt is connected between the upper and lower pulleys; and a motor is fixedly arranged at the top end of the right side of the upper rolling curtain shaft and is connected with a switch through a wire. The rotary blackboard disclosed by the utility model has the beneficial effects that the revealed position of the blackboard cloth can be adjusted randomly through the cooperation of the blackboard cloth and the upper and lower rolling curtain shafts; while the time spent on cleaning the blackboard in class is saved, the problem that when complex questions are explained, the complex solution processes are not fully written down or can not be seen clearly, and the like are solved at the same time; the automatic lifting of the blackboard cloth can be realized through the motor; the synchronous rotation of the upper and lower rotating shafts can be realized through the drive belt, so that the blackboard cloth is kept at a proper tightness degree at any moment; the blackboard cloth can be avoided floating forwards and backwards through the cloth pressing pieces; and therefore, the rotary blackboard disclosed by the utility model is capable of meeting different classroom teaching requirements and further embodying scientific and efficient teaching requirements.

Description

Revolving blackboard
Technical field
The utility model belongs to teaching appliance, but particularly a kind of automatic lifting is rolled, length-adjustable Revolving blackboard.
Background technology
The problems such as blackboard adopts the solid blackboard usually, and frequent existence topic type explanation length is inadequate when taking large stretch of area, erases the board on the class and loses time, and chalk uses and causes dust pollution to affect the teacher, and the student is healthy.
The utility model content
The deficiency large in order to overcome existing solid blackboard area occupied, that the space of a whole page of giving lessons restriction is large, the utility model provides a kind of Revolving blackboard, and this Revolving blackboard can not only be regulated voluntarily according to user demand and appear plate face position, and can realize automatic lifting, dustless health.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of Revolving blackboard, it is characterized in that: be fixed with parallel upper curtain rolling shaft, lower curtain rolling shaft on the metope, be fixed with blackboard cloth and compress sheet between upper curtain rolling shaft and the lower curtain rolling shaft, blackboard cloth length is at least up and down between the curtain rolling shaft 1.5 times of distance, upper curtain rolling shaft, lower curtain rolling shaft right-hand member correspondence position are fixed with respectively pulley, be connected with driving-belt between the upper lower sheave, top, upper curtain rolling shaft right side is fixed with motor, and motor is connected with switch by wire.
The beneficial effects of the utility model are: blackboard cloth cooperates the up and down use of curtain rolling shaft can regulate arbitrarily the position that blackboard cloth appears, length is explained complicated topic type and is unlikely to occur writing not open the not congruent problem of seeing greatly the time that the saving classroom erases the board, the use of motor can realize the automatic lifting of blackboard cloth, conveyer belt can be realized the up and down synchronous rotation of turning cylinder, make blackboard cloth constantly keep suitably tight sag, the compress sheet can be avoided floating before and after the blackboard cloth, the demand of giving lessons embodies science, the requirement of giving lessons efficiently more thereby this novel use can be satisfied different classrooms.
Description of drawings
Fig. 1 is structural representation of the present utility model,
Among the figure, 1. the compress sheet is 2. gone up curtain rolling shaft, 3. descends curtain rolling shaft, 4. blackboard cloth, 5. pulley, 6. driving-belt, 7. motor, 8. wire, 9. switch, 10. metope.
The specific embodiment
The specific embodiment of the present utility model is, as shown in the figure:
Embodiment 1, a kind of Revolving blackboard, it is characterized in that: be fixed with parallel upper curtain rolling shaft 2, lower curtain rolling shaft 3 on the metope 10, be fixed with blackboard cloth 4 and compress sheet 1 between upper curtain rolling shaft 2 and the lower curtain rolling shaft 3, blackboard cloth 4 length are between the curtain rolling shaft 1.5 times of distance up and down, and upper curtain rolling shaft 2, lower curtain rolling shaft 3 right-hand member correspondence positions are fixed with respectively pulley 5, are connected with driving-belt 6 between the upper lower sheave 5, top, upper curtain rolling shaft 2 right side is fixed with motor 7, and motor 7 is connected with switch 9 by wire 8.

Claims (1)

1. Revolving blackboard, it is characterized in that: be fixed with parallel upper curtain rolling shaft, lower curtain rolling shaft on the metope, be fixed with blackboard cloth and compress sheet between upper curtain rolling shaft and the lower curtain rolling shaft, blackboard cloth length is at least up and down between the curtain rolling shaft 1.5 times of distance, upper curtain rolling shaft, lower curtain rolling shaft right-hand member correspondence position are fixed with respectively pulley, be connected with driving-belt between the upper lower sheave, top, upper curtain rolling shaft right side is fixed with motor, and motor is connected with switch by wire.
CN 201220418514 2012-08-22 2012-08-22 Rotary blackboard Expired - Fee Related CN202727738U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220418514 CN202727738U (en) 2012-08-22 2012-08-22 Rotary blackboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220418514 CN202727738U (en) 2012-08-22 2012-08-22 Rotary blackboard

Publications (1)

Publication Number Publication Date
CN202727738U true CN202727738U (en) 2013-02-13

Family

ID=47653476

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220418514 Expired - Fee Related CN202727738U (en) 2012-08-22 2012-08-22 Rotary blackboard

Country Status (1)

Country Link
CN (1) CN202727738U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110115443A (en) * 2019-04-24 2019-08-13 烟台工程职业技术学院(烟台市技师学院) A kind of interesting interaction instructional device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110115443A (en) * 2019-04-24 2019-08-13 烟台工程职业技术学院(烟台市技师学院) A kind of interesting interaction instructional device

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Legal Events

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

Granted publication date: 20130213

Termination date: 20130822

C17 Cessation of patent right