CN203369569U - Blackboard writing assisting device - Google Patents
Blackboard writing assisting device Download PDFInfo
- Publication number
- CN203369569U CN203369569U CN201320459489.XU CN201320459489U CN203369569U CN 203369569 U CN203369569 U CN 203369569U CN 201320459489 U CN201320459489 U CN 201320459489U CN 203369569 U CN203369569 U CN 203369569U
- Authority
- CN
- China
- Prior art keywords
- supporting plate
- chalk
- assisting device
- sleeve
- blackboard writing
- 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 provides a blackboard writing assisting device and relates to the technical field of teaching assistance tools. The blackboard writing assisting device comprises a U-shaped support, fixed plates, a sliding sleeve, a supporting rod, a sleeve, an L-shaped supporting plate, a fixing clamp, a chalk placing box and a chalk eraser placing box. The blackboard writing assisting device is characterized in that the mutually symmetric fixed plates with the plate surfaces provided with fixing holes are vertically fixed at two ends of the U-shaped support respectively, the U-shaped support is slidably sleeved with the sliding sleeve adapting to the U-shaped support, an outer wall of the sliding sleeve is rotatably connected with the supporting rod through a pin shaft, the supporting rod is slidably sleeved with the sleeve with a pipe wall provided with a fastening bolt, the L-shaped supporting plate is fixed on an outer wall of the lower end of the sleeve, the upper end of the front of the L-shaped supporting plate is provided with the fixing clamp, and the left end face of the L-shaped supporting plate is connected with the chalk placing box, and the right end face of the L-shaped supporting plate is connected with the chalk eraser placing box. The blackboard writing assisting device is simple in structure and convenient to use, can effectively support and fix textbooks or teaching tools, and enables teachers to have more energy to write and can reduce labor intensity of the teachers and improve working efficiency.
Description
Technical field: the utility model relates to teaching appurtenance technical field, specifically a kind of blackboard writing servicing unit.
Background technology: in teaching classroom, teacher is drawn, is write the operations such as formula, extracts text on the blackboard of being everlasting, generally teacher is hand-held teaching notes, the another hand is write with chalk, in writing process also otherwise the time turn round take chalk or chalkboard eraser, so that normally write or wipe, revise word etc., processing ease makes teacher feel tired like this, is unfavorable for teaching.
Summary of the invention: the purpose of this utility model is to overcome above-mentioned deficiency, and providing a kind of can effectively support and fix textbook or teaching notes, is convenient to alleviate the blackboard writing servicing unit of teacher's labour intensity.
The purpose of this utility model is achieved in that this blackboard writing comprises " U " shape support with servicing unit, fixed head, sliding sleeve, support bar, sleeve pipe, " L " shape supporting plate, geometrical clamp, chalk box, chalk eraser placing box, " U " shape support two ends vertically are fixed wtih respectively the fixed head that symmetrical plate face is provided with fixing hole, slide and be set with the sliding sleeve adapted with it above " U " shape support, the sliding sleeve outer wall is being rotationally connected support bar by bearing pin, slide and be set with the sleeve pipe that tube wall is provided with fastening bolt above support bar, sleeve pipe lower end outer wall is fixed wtih " L " shape supporting plate, the positive upper end of " L " shape supporting plate is provided with geometrical clamp, be connected with chalk box on left side, be connected with the blackboard eraser holder on right side.
During use, by fixed head, this servicing unit is fixed on the wall of blackboard top, with geometrical clamp, teaching notes is gripped and get final product after regulating " L " shape supporting plate height, teacher can carry out up and down, move left and right " L " shape supporting plate at any time as required.
Advantage of the present utility model: simple in structure, easy to use, can effectively support and fix textbook or teaching notes, being convenient to teacher has more energy to go to write, and can alleviate teacher's labour intensity, increases work efficiency.
The accompanying drawing explanation: Fig. 1 is structure chart of the present utility model.
The specific embodiment: the utility model is described in further detail below in conjunction with Fig. 1: this blackboard writing comprises " U " shape support 1 with servicing unit, fixed head 2, sliding sleeve 3, support bar 4, sleeve pipe 5, " L " shape supporting plate 6, geometrical clamp 7, chalk box 8, chalk eraser placing box 9, " U " shape support 1 two ends vertically are fixed wtih respectively the fixed head 2 that symmetrical plate face is provided with fixing hole, slide and be set with the sliding sleeve 3 adapted with it above " U " shape support 1, sliding sleeve 3 outer walls are being rotationally connected support bar 4 by bearing pin, slide and be set with the sleeve pipe 5 that tube wall is provided with fastening bolt above support bar 4, sleeve pipe 5 lower end outer walls are fixed wtih " L " shape supporting plate 6, " L " shape supporting plate 6 positive upper ends are provided with geometrical clamp 7, be connected with chalk box 8 on left side, be connected with blackboard eraser holder 9 on right side.
Claims (1)
1. a blackboard writing servicing unit, comprise " U " shape support (1), fixed head (2), sliding sleeve (3), support bar (4), sleeve pipe (5), " L " shape supporting plate (6), geometrical clamp (7), chalk box (8), chalk eraser placing box (9), it is characterized in that " U " shape support (1) two ends vertically are fixed wtih respectively the fixed head (2) that symmetrical plate face is provided with fixing hole, slide and be set with the sliding sleeve (3) adapted with it above " U " shape support (1), sliding sleeve (3) outer wall is being rotationally connected support bar (4) by bearing pin, slide and be set with the sleeve pipe (5) that tube wall is provided with fastening bolt above support bar (4), sleeve pipe (5) lower end outer wall is fixed wtih " L " shape supporting plate (6), the positive upper end of " L " shape supporting plate (6) is provided with geometrical clamp (7), be connected with chalk box (8) on left side, be connected with blackboard eraser holder (9) on right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320459489.XU CN203369569U (en) | 2013-07-24 | 2013-07-24 | Blackboard writing assisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320459489.XU CN203369569U (en) | 2013-07-24 | 2013-07-24 | Blackboard writing assisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203369569U true CN203369569U (en) | 2014-01-01 |
Family
ID=49832128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320459489.XU Expired - Fee Related CN203369569U (en) | 2013-07-24 | 2013-07-24 | Blackboard writing assisting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203369569U (en) |
-
2013
- 2013-07-24 CN CN201320459489.XU patent/CN203369569U/en not_active Expired - Fee Related
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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: 20140101 Termination date: 20140724 |
|
| EXPY | Termination of patent right or utility model |