CN203195072U - Blackboard fixator - Google Patents
Blackboard fixator Download PDFInfo
- Publication number
- CN203195072U CN203195072U CN 201320083632 CN201320083632U CN203195072U CN 203195072 U CN203195072 U CN 203195072U CN 201320083632 CN201320083632 CN 201320083632 CN 201320083632 U CN201320083632 U CN 201320083632U CN 203195072 U CN203195072 U CN 203195072U
- Authority
- CN
- China
- Prior art keywords
- clamping plate
- screw rod
- blackboard
- work
- open
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
Provided is a blackboard fixator. Clamping plates are two identical rectangular plates which are a clamping pate A and a clamping plate B, the clamping plate A and the clamping plate B are arranged parallelly, a longitudinal strip-shaped through hole A is formed in the middle of the clamping plate A, and a longitudinal strip-shaped through hole B corresponding to the through hole A is formed in the middle of the clamping plate B. A screw rod penetrates through the through hole A in the clamping plate A and the through hole B in the clamping plate B respectively, a circular nut connected with the screw rod is arranged between the top of one end of the screw rod and the clamping plate A, and a butterfly nut connected with the screw rod is arranged between the top of the other end of the screw rod and the clamping plate B. The blackboard fixator has the advantages of being stable in placing, convenient to carry, simple in structure, easy to manufacture, convenient and fast to operate, low in cost and the like.
Description
Technical field the utility model relates to a kind of teaching aid, relates in particular to a kind of blackboard fixator.
Background technology is present, the teacher is at school the time, because the area of blackboard is limited and in order to allow the student see content clearly, custom is carried a small blackboard, and impart knowledge to students at small blackboard, small blackboard is when placing, the lower end is seated in the ledge for chalk on blackboard of blackboard bottom, the upper end relies on the blackboard surface, and the mode of this placement small blackboard exists deficiency in the process of practical application, for example, because the ledge for chalk on blackboard of your bottom of blackboard is very smooth, when the teacher write writing on the blackboard at small blackboard, sliding appearred in small blackboard easily, even occurs dropping; In addition, ledge for chalk on blackboard can shelter from one section plate face of small blackboard bottom, writes writing on the blackboard and student to teaching and sees that writing on the blackboard all makes troubles.
The summary of the invention the purpose of this utility model is to provide a kind of placement firm, and is easy to carry, simple in structure, makes simple and easy, simple operation, with low cost, be fit to the blackboard fixator of teaching use more.
The utility model comprises clamping plate, screw rod, round nut and wing nut, clamping plate are two identical rectangular slabs, i.e. clamping plate A and clamping plate B, and clamping plate A and clamping plate B be arranged in parallel, bar shaped open-work A is longitudinally established at the middle part of clamping plate A, and the bar shaped open-work B corresponding with open-work A established at the middle part of clamping plate B; One screw rod is arranged, and it passes the open-work A of clamping plate A inside and the open-work B of clamping plate B inside respectively, is provided with the round nut that links to each other with screw rod between an end end of screw rod top and clamping plate A; Between the other end end of screw rod top and clamping plate B, be provided with the wing nut that links to each other with screw rod.
During use, be stuck on the sidewall of ledge for chalk on blackboard in the slit between clamping plate A and the clamping plate B, the lower end of small blackboard also is inserted into the slit between clamping plate A and the clamping plate B, tightens round nut and the wing nut of both sides then, clamping plate A and clamping plate B clamp ledge for chalk on blackboard and small blackboard, and the teacher can write writing on the blackboard; Can adjust screw rod according to the actual requirements in the distance up and down of open-work A and open-work B inside, in order to clamp according to the size of small blackboard or ledge for chalk on blackboard.
Compared with the prior art, the beneficial effects of the utility model are: place firm, easy to carry, simple in structure, makes simple and easy, simple operation, with low cost, be fit to the teaching use more.
Description of drawings Fig. 1 looks generalized section for master of the present utility model.
The specific embodiment as shown in Figure 1, clamping plate are two identical rectangular slabs, i.e. clamping plate 1-1 and clamping plate 1-2, and clamping plate 1-1 and clamping plate 1-2 be arranged in parallel, bar shaped open-work 2-1 is longitudinally established at the middle part of clamping plate 1-1, and the bar shaped open-work 2-2 corresponding with open-work 2-1 established at the middle part of clamping plate 1-2; One screw rod 3 is arranged, and it passes the open-work 2-1 of clamping plate 1-1 inside and the open-work 2-2 of clamping plate 1-2 inside respectively, is provided with the round nut 4 that links to each other with screw rod between an end end of screw rod top and clamping plate 1-1; Between the other end end of screw rod top and clamping plate 1-2, be provided with the wing nut 5 that links to each other with screw rod.
Claims (1)
1. blackboard fixator, comprise clamping plate, screw rod, round nut and wing nut, it is characterized in that: clamping plate are two identical rectangular slabs, be clamping plate A and clamping plate B, clamping plate A and clamping plate B be arranged in parallel, bar shaped open-work A is longitudinally established at the middle part of clamping plate A, and the bar shaped open-work B corresponding with open-work A established at the middle part of clamping plate B; One screw rod is arranged, and it passes the open-work A of clamping plate A inside and the open-work B of clamping plate B inside respectively, is provided with the round nut that links to each other with screw rod between an end end of screw rod top and clamping plate A; Between the other end end of screw rod top and clamping plate B, be provided with the wing nut that links to each other with screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083632 CN203195072U (en) | 2013-02-06 | 2013-02-06 | Blackboard fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083632 CN203195072U (en) | 2013-02-06 | 2013-02-06 | Blackboard fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203195072U true CN203195072U (en) | 2013-09-18 |
Family
ID=49139219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320083632 Expired - Fee Related CN203195072U (en) | 2013-02-06 | 2013-02-06 | Blackboard fixator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203195072U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106617675A (en) * | 2016-12-07 | 2017-05-10 | 盐城工学院 | Multifunctional flip working table board |
| CN108657566A (en) * | 2018-04-20 | 2018-10-16 | 天津市正阳彩印有限公司 | A kind of Double layer corrugated paper case fixator |
-
2013
- 2013-02-06 CN CN 201320083632 patent/CN203195072U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106617675A (en) * | 2016-12-07 | 2017-05-10 | 盐城工学院 | Multifunctional flip working table board |
| CN108657566A (en) * | 2018-04-20 | 2018-10-16 | 天津市正阳彩印有限公司 | A kind of Double layer corrugated paper case fixator |
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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: 20130918 Termination date: 20140206 |