CN201544639U - Hand blackboard - Google Patents
Hand blackboard Download PDFInfo
- Publication number
- CN201544639U CN201544639U CN2009202484297U CN200920248429U CN201544639U CN 201544639 U CN201544639 U CN 201544639U CN 2009202484297 U CN2009202484297 U CN 2009202484297U CN 200920248429 U CN200920248429 U CN 200920248429U CN 201544639 U CN201544639 U CN 201544639U
- Authority
- CN
- China
- Prior art keywords
- framework
- blackboard
- board
- base
- sheet material
- 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
Links
Abstract
The utility model relates to a hand blackboard, which mainly comprises a board, a framework and a base, wherein the board is of the annular soft body structure, and the outer surface of the board is of a blackboard; the framework is of the quadrilateral structure, and the bottom edge of the framework is fixed at the top part of the base; rotary shafts are horizontally connected near the upper end and the lower end in the framework respectively; the annular board is sheathed and connected on the two rotary shafts; gears are arranged at the surface of the rotary surfaces, a plurality of racks are stuck at the inner surface of the board, and the racks are distributed vertically and meshed with the gears; one end of the rotary shaft is connected with a crank; and a strip-type blackboard eraser is fixedly and horizontally connected at the upper surface of the bottom edge of the framework and is closely clung to the board. The hand blackboard has the advantages of beautiful shape, good convenience and practicability, wide application, simple operation, reasonable technique and the like.
Description
Technical field the utility model relates to a kind of teaching aid, especially a kind of hand-rail type blackboard.
Background technology is well-known, and from ancient times to the present, blackboard always is one of most important instrument in the teaching.But when blackboard wiping, people can only select instruments such as blackboard eraser or rag for use, and need hand tool to swing back and forth, and require great effort very much, bother.
The summary of the invention the purpose of this utility model provide a kind of be convenient to wiping and can adjust write the height the hand-rail type blackboard.
The utility model mainly comprises sheet material, framework and base, and sheet material is annular soft body structure, and outer surface is a blackboard; Framework is a quadrilateral structure, and the base vertically is fixed on base top; Laterally connect rotating shaft respectively near upper/lower terminal in framework, annular sheet metal is socketed in two rotating shafts; On rotating shaft surface gear is installed, is pasted many tooth bars, and tooth bar is vertical direction, with the mutual interlock of gear at the sheet material inner surface; Connect crank at rotating shaft one end; At the horizontal affixed strip blackboard eraser of framework base upper surface, and strip blackboard eraser and sheet material are close to.
When writing, the user can normally write at plate surface, when adjusting height, holds the crank rotating shaft, and drive sheet material moves up and down adjusts height, and the user who satisfies different heights uses; During blackboard wiping, the user holds crank rotation, and rotating shaft is rotated and driven the sheet material rotation, and sheet material can contact with the blackboard eraser on framework base in rotary course, finishes wiping work to blackboard, saving muscle power and time by blackboard eraser.
Compared with the prior art, the beneficial effects of the utility model are: good looking appearance, convenient and practical, be widely used, simple to operate, technology is reasonable, blackboard wiping fast, and can adjust the plate face and write height.
Description of drawings Fig. 1 is a stereochemical structure sketch of the present utility model.
The specific embodiment is shown in Fig. 1 stereochemical structure sketch of the present utility model, and the utility model mainly comprises sheet material 1, framework 2 and base 3, and sheet material is annular soft body structure, and outer surface is a blackboard; Framework is a quadrilateral structure, and the base vertically is fixed on base top; Laterally connect rotating shaft 4 respectively near upper/lower terminal in framework, annular sheet metal is socketed in two rotating shafts; On rotating shaft surface gear 5 is installed, is pasted many tooth bars 6, and tooth bar is vertical direction, with the mutual interlock of gear at the sheet material inner surface; Connect crank 7 at rotating shaft one end; At the horizontal affixed strip blackboard eraser 8 of framework base upper surface, and strip blackboard eraser and sheet material are close to.
Claims (1)
1. a hand-rail type blackboard comprises sheet material (1), framework (2) and base (3), and it is characterized in that: sheet material (1) is annular soft body structure, and outer surface is a blackboard; Framework (2) is a quadrilateral structure, and the base vertically is fixed on base (3) top; Laterally connect rotating shaft (4) respectively near upper/lower terminal in framework (2), annular sheet metal (1) is socketed in two rotating shafts (4); On rotating shaft (4) surface gear (5) is installed, is pasted many tooth bars (6), and tooth bar (6) be vertical direction, with the mutual interlock of gear (5) at sheet material (1) inner surface; Connect crank (7) at rotating shaft (4) one ends; At framework (2) the base horizontal affixed strip blackboard eraser of upper surface (8), and strip blackboard eraser (8) is close to sheet material (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202484297U CN201544639U (en) | 2009-11-24 | 2009-11-24 | Hand blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202484297U CN201544639U (en) | 2009-11-24 | 2009-11-24 | Hand blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201544639U true CN201544639U (en) | 2010-08-11 |
Family
ID=42599800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202484297U Expired - Fee Related CN201544639U (en) | 2009-11-24 | 2009-11-24 | Hand blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201544639U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442114A (en) * | 2014-12-15 | 2015-03-25 | 广西大学 | Blackboard with automatic erasing function |
| CN107471863A (en) * | 2017-08-11 | 2017-12-15 | 安徽信息工程学院 | A kind of blackboard structure |
| CN109228738A (en) * | 2018-12-08 | 2019-01-18 | 河南云投小镇创业孵化器有限公司 | A kind of Course Business Management Teaching display board |
-
2009
- 2009-11-24 CN CN2009202484297U patent/CN201544639U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442114A (en) * | 2014-12-15 | 2015-03-25 | 广西大学 | Blackboard with automatic erasing function |
| CN107471863A (en) * | 2017-08-11 | 2017-12-15 | 安徽信息工程学院 | A kind of blackboard structure |
| CN109228738A (en) * | 2018-12-08 | 2019-01-18 | 河南云投小镇创业孵化器有限公司 | A kind of Course Business Management Teaching display board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20101124 |