CN201907334U - English four-wire grid drawing device - Google Patents
English four-wire grid drawing device Download PDFInfo
- Publication number
- CN201907334U CN201907334U CN2011200089248U CN201120008924U CN201907334U CN 201907334 U CN201907334 U CN 201907334U CN 2011200089248 U CN2011200089248 U CN 2011200089248U CN 201120008924 U CN201120008924 U CN 201120008924U CN 201907334 U CN201907334 U CN 201907334U
- Authority
- CN
- China
- Prior art keywords
- fixing rod
- inner sleeve
- fixed bar
- english
- substrate
- 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 belongs to the field of teaching aids, and mainly relates to a teaching aid for English in middle and primary schools. The English four-wire grid drawing device consists of a fixing rod and a base plate, wherein the fixing rod passes through the upper part of the base plate; the base plate can slide up and down on the fixing rod; the upper part of the base plate is provided with a fastening screw, and the lower part is provided with four clamping grooves; the pitches of the clamping grooves are equal; a hollow tube I is used as the fixing rod; the interiors of two ends of the fixing rod are provided with inner sleeves; the end of each inner sleeve is provided with a ball; a spring is arranged between each inner sleeve and the fixing rod; and within the sliding range of the inner sleeve, the fixing rod is provided with a fixing clamp. The English four-wire grid drawing device has the benefits of being simple in structure, light in weight, easy in carrying and convenient in operation, and being capable of drawing regular four-wire grids fast.
Description
Technical field
The utility model belongs to the teaching aid field, relates generally to middle and primary schools' classroom teaching apparatus class.
Background technology
At present, middle and primary schools are in classroom teaching, and the teacher draws four line lattice and teaches students and write English, generally draws four line lattice by the teacher with ruler on blackboard, the four line erythrophloeum ferdii framves that the schoolman that condition is good slightly makes with batten, picture four line lattice on blackboard.With ruler setting-out one by one on blackboard, not only time-consuming but also distance between centers of tracks can not guarantee, instructional blocks of time can not be utilized effectively, and influences efficiency of teaching and quality of instruction; Draw four line lattice with yoke on blackboard, though improved effect, because the yoke volume is big, the teacher needs to take on the other hand yoke one hand-drawing line, because the heaviness of yoke, a people often can not operate, and brings constant to teaching.
Summary of the invention
The purpose of the utility model design be to design and manufacture a kind ofly alleviate teachers work intensity, the line compartment that portably uses conveniently, can fast draw on blackboard is apart from the classroom teaching apparatus of unanimity, thereby improve efficiency of teaching, improve the quality of teaching.
The technical scheme that its technical problem that solves the utility model adopts is: the English stave renderer, form by fixed bar, substrate, fixed bar passes from substrate top, substrate can slide up and down on fixed bar, substrate top is provided with holding screw, the substrate bottom is provided with four draw-in grooves, the draw-in groove spacing equates, fixed bar is a hollow pipe, inside, fixed bar two ends is provided with inner sleeve, the inner sleeve termination is provided with ball, is provided with spring between inner sleeve and the fixed bar, and fixed bar is provided with fixing card between the inner sleeve sliding scale.
The beneficial effects of the utility model are, and are simple in structure, in light weight, carry easily, and easy to operate, it is regular to draw four rulings, and speed is fast.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model.
Fig. 2 is the utility model inner sleeve schematic diagram
Among the figure: 1: ball 2: inner sleeve 3: fixing card 4: fixed bar 5: holding screw 6: substrate 7: draw-in groove 8: spring
The specific embodiment
The English stave renderer, be made up of fixed bar 4, substrate 6, fixed bar 4 passes from substrate 6 tops, and substrate 6 can slide up and down on fixed bar 4, substrate 6 tops are provided with holding screw 5, substrate 6 bottoms are provided with four draw-in grooves 7, and draw-in groove 7 spacings equate that fixed bar 4 is a hollow pipe, inside, fixed bar 4 two ends is provided with inner sleeve 2, inner sleeve 2 terminations are provided with ball 1, are provided with spring 8 between inner sleeve 2 and the fixed bar 4, and fixed bar 4 is provided with fixing card 3 between inner sleeve 2 sliding scales.
In use, chalk is inserted in the draw-in groove 7 on the substrate 6 loosening then holding screw 5, adjust substrate 6 to correct position, tighten holding screw 5 then, it is vertical that fixed bar 4 is pasted blackboard, opens the fixedly card 3 at two ends up and down, spring 8 promotes inner sleeve 2 and ejects, the lower edge is close on ball 1 and the blackboard, and at this moment fixing then card 3 drags substrate 6, ball 1 can slide on lower edge on the blackboard, and chalk will easily be drawn four straight rulings on blackboard like this.
Claims (1)
1. English stave renderer, by fixed bar (4), substrate (6) is formed, fixed bar (4) passes from substrate (6) top, substrate (6) can slide up and down on fixed bar (4), substrate (6) top is provided with holding screw (5), substrate (6) bottom is provided with four draw-in grooves (7), draw-in groove (7) spacing equates, fixed bar (4) is a hollow pipe, fixed bar (4) inside, two ends is provided with inner sleeve (2), inner sleeve (2) termination is provided with ball (1), is provided with spring (8) between inner sleeve (2) and the fixed bar (4), and fixed bar (4) is provided with fixing card (3) between inner sleeve (2) sliding scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200089248U CN201907334U (en) | 2011-01-05 | 2011-01-05 | English four-wire grid drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200089248U CN201907334U (en) | 2011-01-05 | 2011-01-05 | English four-wire grid drawing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201907334U true CN201907334U (en) | 2011-07-27 |
Family
ID=44299544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200089248U Expired - Fee Related CN201907334U (en) | 2011-01-05 | 2011-01-05 | English four-wire grid drawing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201907334U (en) |
-
2011
- 2011-01-05 CN CN2011200089248U patent/CN201907334U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20120105 |