CN214027986U - Blackboard writing marking device for English teaching - Google Patents
Blackboard writing marking device for English teaching Download PDFInfo
- Publication number
- CN214027986U CN214027986U CN202023264675.7U CN202023264675U CN214027986U CN 214027986 U CN214027986 U CN 214027986U CN 202023264675 U CN202023264675 U CN 202023264675U CN 214027986 U CN214027986 U CN 214027986U
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- chalk
- english teaching
- marking device
- blackboard writing
- blackboard
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Abstract
A blackboard writing scribing device for English teaching comprises a cross rod, wherein two first sliding blocks are connected to the cross rod in a sliding mode, and a sucking disc is arranged on one side of each first sliding block; the second sliding block is connected to the cross rod between the two first sliding blocks in a sliding mode, the lower end of the second sliding block is fixedly connected with a telescopic rod, and the lower end of the telescopic rod is fixedly connected with a scribing device. A blackboard writing and marking device for English teaching can be firmly fixed on a blackboard, and can slide a first sliding block to adjust and adapt to blackboards with different widths; the marking device is connected at the lower extreme of telescopic link, adjusts the length of telescopic link after the horizontal pole is fixed, just can realize marking off at not co-altitude.
Description
Technical Field
The utility model relates to an english teaching technical field, especially a blackboard writing marking device for english teaching.
Background
English teachers often need to draw equidistant lines on a blackboard in the teaching process, each line is drawn by a straight ruler at present, the operation is complicated, the drawn lines are possibly not equidistant and not parallel, and the writing quality is influenced; although the prior art has a device for assisting scribing, for example, an english scriber disclosed in utility model with the publication number CN211662944U, the device is not firm in fixation, and can only draw one row after one fixation, and the fixed position needs to be adjusted many times to scribe at different heights.
Disclosure of Invention
The utility model aims to solve the technical problem that a blackboard writing marking device for english teaching is provided, can be firm be fixed in on the blackboard to can adjust the height and the width of ruling.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a blackboard writing scribing device for English teaching comprises a cross rod, wherein two first sliding blocks are connected to the cross rod in a sliding mode, and a sucking disc is arranged on one side of each first sliding block; the second sliding block is connected to the cross rod between the two first sliding blocks in a sliding mode, the lower end of the second sliding block is fixedly connected with a telescopic rod, and the lower end of the telescopic rod is fixedly connected with a scribing device.
Preferably, the scribing device comprises a chalk placing block, and four chalk pipelines are arranged in the chalk placing block; the chalk dust collector also comprises a cover plate, a push rod extending into the chalk pipeline is arranged on the cover plate, and a compression spring is arranged in the middle of the push rod.
Preferably, the two sides of the cover plate are side plates, the side plates are provided with fixing holes, and the two sides of the chalk placing block are provided with bulges matched with the fixing holes.
Preferably, the cross bar is provided with a plurality of limiting holes, the top of the first sliding block is provided with a through hole, and the first sliding block is limited on the cross bar by inserting a bolt into the through hole and the limiting holes.
Preferably, both ends of the cross rod are detachably connected with stop stops.
Preferably, the suction cup is an air pump type suction cup.
Preferably, the telescopic rod is provided with a fastening knob for locking the telescopic rod.
Preferably, after the suction disc tightly sucks the blackboard, the distance between the chalk pipeline and the blackboard is less than 1 cm.
A blackboard writing and marking device for English teaching can be firmly fixed on a blackboard, and can slide a first sliding block to adjust and adapt to blackboards with different widths; the marking device is connected at the lower extreme of telescopic link, adjusts the length of telescopic link after the horizontal pole is fixed, just can realize marking off at not co-altitude.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the marking device of the present invention;
fig. 3 is a cross-sectional view of the marking device of the present invention after chalk is put therein;
fig. 4 is a schematic structural view of the present invention in use.
Detailed Description
As shown in fig. 1, the blackboard writing scribing device for english teaching comprises a cross rod 1, two first sliding blocks 2 are connected on the cross rod 1 in a sliding manner, and a suction cup 3 is arranged on one side of each first sliding block 2; a second sliding block 4 is connected to the cross rod 1 between the two first sliding blocks 2 in a sliding manner, a telescopic rod 5 is fixedly connected to the lower end of the second sliding block 4, and a scribing device 6 is fixedly connected to the lower end of the telescopic rod 5.
Preferably, as shown in fig. 2, the scribing device 6 comprises a chalk placing block 7, and four chalk pipes 8 are arranged in the chalk placing block 7; the chalk dust collector also comprises a cover plate 11, a push rod 9 extending into the chalk pipeline 8 is arranged on the cover plate 11, and a compression spring 10 is arranged in the middle of the push rod 9. The chalk is shorter and shorter, and the chalk is always contacted with the blackboard under the action of the spring after being shortened.
Preferably, the two sides of the cover plate 11 are side plates, the side plates are provided with fixing holes 12, and the two sides of the chalk placing block 7 are provided with protrusions 13 matched with the fixing holes 12.
Preferably, a plurality of limiting holes 14 are formed in the cross bar 1, a through hole 15 is formed in the top of the first sliding block 2, and the first sliding block is limited on the cross bar 1 by inserting a bolt 16 into the through hole 15 and the limiting holes 14.
Preferably, the two ends of the cross bar 1 are detachably connected with stoppers 17. Stop 17 prevents first slider and second slider roll-off, and the equipment of this device of being convenient for is connected in the dismantlement.
Preferably, the suction cup 3 is an air pump type suction cup. The air pump type sucker has large suction force and firm adsorption.
Preferably, the telescopic rod 5 is provided with a fastening knob 18 for locking the telescopic rod 5.
Preferably, as shown in fig. 3, after the suction cup 3 sucks the blackboard tightly, the distance between the chalk pipe 8 and the blackboard is less than 1 cm. The chalk end is short in exposed length, so that the chalk is not easy to break.
As shown in fig. 4, for the utility model discloses structure schematic diagram during the use, adsorb this device the back, adjust the length of telescopic link, make marking device be located the height that needs, open apron 11, put into the chalk, then cover apron 11, pressure spring 10 can provide pressure for the chalk all the time, makes the chalk and very board contact, and this structure chalk easily loads, and it is effectual to rule.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (8)
1. The utility model provides a blackboard writing marking device for english teaching which characterized in that: comprises a cross bar (1), two first sliding blocks (2) are connected on the cross bar (1) in a sliding way, and one side of each first sliding block (2) is provided with a sucker (3); a second sliding block (4) is connected to the cross rod (1) between the two first sliding blocks (2) in a sliding mode, a telescopic rod (5) is fixedly connected to the lower end of the second sliding block (4), and a scribing device (6) is fixedly connected to the lower end of the telescopic rod (5).
2. The blackboard writing and marking device for English teaching of claim 1, wherein: the scribing device (6) comprises a chalk placing block (7), and four chalk pipelines (8) are arranged in the chalk placing block (7); the chalk dust collector also comprises a cover plate (11), a push rod (9) extending into the chalk pipeline (8) is arranged on the cover plate (11), and a compression spring (10) is arranged in the middle of the push rod (9).
3. The blackboard writing and marking device for English teaching of claim 2, wherein: the chalk holder is characterized in that side plates are arranged on two sides of the cover plate (11), fixing holes (12) are formed in the side plates, and protrusions (13) matched with the fixing holes (12) are arranged on two sides of the chalk placing block (7).
4. The blackboard writing and marking device for English teaching of claim 1, wherein: the limiting device is characterized in that a plurality of limiting holes (14) are formed in the cross rod (1), a through hole (15) is formed in the top of the first sliding block (2), and a bolt (16) is inserted into the through hole (15) and the limiting holes (14) to limit the first sliding block on the cross rod (1).
5. The blackboard writing and marking device for English teaching of claim 1, wherein: both ends of the cross rod (1) are detachably connected with stop stops (17).
6. The blackboard writing and marking device for English teaching of claim 1, wherein: the sucker (3) is an air pump type sucker.
7. The blackboard writing and marking device for English teaching of claim 1, wherein: and a fastening knob (18) used for locking the telescopic rod (5) is arranged on the telescopic rod (5).
8. The blackboard writing and marking device for English teaching of claim 2, wherein: after the suction disc (3) tightly sucks the blackboard, the distance between the chalk pipeline (8) and the blackboard is less than 1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023264675.7U CN214027986U (en) | 2020-12-30 | 2020-12-30 | Blackboard writing marking device for English teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023264675.7U CN214027986U (en) | 2020-12-30 | 2020-12-30 | Blackboard writing marking device for English teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214027986U true CN214027986U (en) | 2021-08-24 |
Family
ID=77343531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023264675.7U Active CN214027986U (en) | 2020-12-30 | 2020-12-30 | Blackboard writing marking device for English teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214027986U (en) |
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2020
- 2020-12-30 CN CN202023264675.7U patent/CN214027986U/en active Active
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