CN208593221U - Dustproof blackboard eraser is used in Chinese literature teaching - Google Patents
Dustproof blackboard eraser is used in Chinese literature teaching Download PDFInfo
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- CN208593221U CN208593221U CN201721783019.3U CN201721783019U CN208593221U CN 208593221 U CN208593221 U CN 208593221U CN 201721783019 U CN201721783019 U CN 201721783019U CN 208593221 U CN208593221 U CN 208593221U
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- water
- blackboard eraser
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- stepped groove
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Abstract
Dustproof blackboard eraser is used in Chinese literature teaching.Many teaching details of Chinese literature need teacher to write on blackboard at present, with needing to be wiped with blackboard eraser after the complete content of blackboard writing, can generate a large amount of chalk dust after blackboard eraser wiping.The utility model composition includes: bottom plate (7) and cavernous body (1), the cavernous body is connect with one end of the bottom plate by the fixed frame (2) of the bottom plate surrounding, the other end of the bottom plate is provided with stepped groove (10) and water segregator (11), the stepped groove constitutes the cavity communicated with the water segregator, bolt (9) are installed in the stepped groove, there is external screw thread on the bolt, there is the internal screw thread to match with the external screw thread of the bolt in the stepped groove.The utility model uses dustproof blackboard eraser for Chinese literature teaching.
Description
Technical field:
The utility model relates to a kind of Chinese literature teaching dustproof blackboard erasers, belong to Chinese literature teaching aid.
Background technique:
Currently, many teaching details of Chinese literature can not be all shown on computers, need teacher on blackboard
It is write, with needing to be wiped with blackboard eraser after the complete content of blackboard writing, a large amount of chalk dust can be generated after blackboard eraser wiping, always
Teacher and student suck excessive chalk dust can generate certain harm to body, and teachers association's selection sometimes is wiped using wiper
Blackboard, but wiper wastes instructional blocks of time every time using requiring to be bedewed with water in this way.
Utility model content:
The purpose of the utility model is to overcome a large amount of chalk dust is generated in existing blackboard eraser wiping process, needed with wiper
The problem of wasting time often is bedewed, one kind is provided and prevents chalk dust in wiping process, does not need the Chinese of adhesional wetting
Say Literature Teaching dustproof blackboard eraser.
Above-mentioned purpose is realized by following technical scheme:
A kind of Chinese literature teaching dustproof blackboard eraser, composition include: bottom plate and cavernous body, the cavernous body and institute
The one end for the bottom plate stated is connected by the fixed frame of the bottom plate surrounding, the other end of the bottom plate be provided with stepped groove and
Water segregator, the stepped groove constitutes the cavity communicated with the water segregator, is equipped with bolt in the stepped groove, described
Bolt on there is external screw thread, there is in the stepped groove internal screw thread to match with the external screw thread of the bolt.
The described Chinese literature teaching dustproof blackboard eraser, the water segregator includes intake antrum, the intake antrum with
Four one end for dividing water cavity being evenly arranged connect, and the other end for dividing water cavity is connect with water storage cavity, the water storage cavity
The upper water chamber being evenly arranged respectively with four is connect.
The Chinese literature, which is imparted knowledge to students, uses dustproof blackboard eraser, is fitted with pad on the stepped groove and the bolt
Piece.
The Chinese literature, which is imparted knowledge to students, uses dustproof blackboard eraser, is between the water storage cavity right side and the water chamber
120-135 degree angle.
The utility model has the advantages that
1. the working principle of the utility model are as follows: back-out bolt, inject water into water segregator by stepped groove, so that four
Water storage cavity all fills water, is then tightening bolt, and blackboard eraser makes cavernous body upward when not in use, can prevent in water storage cavity
Water is flowed into cavernous body always, prevents the evaporation of moisture, is guaranteed that primary water filling blackboard eraser can be used repeatedly, is needed using blackboard eraser
When being wiped, bottom plate is grasped, the water in water storage cavity can be flowed into cavernous body by water chamber, be wiped to blackboard
?.
The structure of water segregator is arranged in the utility model, can carry out storage water, does not need before wiping by cavernous body every time
Adhesional wetting, as long as the water picked up in blackboard eraser water storage cavity enters in cavernous body, facilitates wiping, while will not in wiping process
Chalk dust is generated, the health of academics and students is conducive to.
The water chamber that each water storage cavity of the utility model is evenly arranged with four is connect, water storage cavity right side and water chamber it
Between be in 120-135 degree angle, regardless of teacher using left hand or use hand, teacher using arbitrarily wipe direction can make water storage
Water in chamber enters in cavernous body, and the wiping suitable for different teachers is accustomed to.
It is fitted with gasket on the utility model stepped groove and bolt, so that blackboard eraser is when not in use, the water in water storage cavity
It will not be flowed out by stepped groove, play the role of sealing.
The cavernous body of the utility model is connect with bottom plate by the fixed frame of bottom plate surrounding, and cavernous body is convenient for changing.
Detailed description of the invention:
Attached drawing 1 is the structural schematic diagram of the utility model；
Attached drawing 2 is the structural schematic diagram of the water segregator of the utility model；
In figure: 1, cavernous body；2, fixed frame；3, bottom plate；4, water storage cavity；5, divide water cavity；6, intake antrum；7, bottom plate；8, it pads
Piece；9, bolt；10, stepped groove；11, water segregator.
Specific embodiment:
Embodiment 1:
A kind of Chinese literature teaching dustproof blackboard eraser, composition include: bottom plate 7 and cavernous body 1, the cavernous body with
One end of the bottom plate is connected by the fixed frame 2 of the bottom plate surrounding, and cavernous body can be stuck on bottom plate by fixed frame,
Facilitate the disassembly and replacement of cavernous body simultaneously, the other end of the bottom plate is provided with stepped groove 10 and water segregator 11, described
Stepped groove constitutes the cavity communicated with the water segregator, is equipped with bolt 9 in the stepped groove, has on the bolt
External screw thread, the stepped groove is interior to have the internal screw thread to match with the external screw thread of the bolt；
The water segregator includes intake antrum 6, and one end that the intake antrum and four were evenly arranged divide water cavity 5 connects
It connects, described divides the other end of water cavity to connect with water storage cavity 4, the water chamber being evenly arranged respectively with four on the water storage cavity
3 connections, water chamber and intake antrum and divide water cavity all and are cylindrical, and the diameter of water chamber is 8-10mm, it is ensured that in water storage cavity
Water well into cavernous body is arrived, while preventing excessive in cavernous body；
Gasket 8 is fitted on the stepped groove and the bolt, it is ensured that close between bolt and stepped groove
Envelope, prevents the leakage of water；
It is in 120-135 degree angle between the water storage cavity right side and the water chamber, regardless of the bottom plate of blackboard eraser any face
It can guarantee that the water in water storage cavity is flowed out by water chamber upward.
Claims (4)
1. a kind of Chinese literature teaching dustproof blackboard eraser, composition includes: bottom plate and cavernous body, it is characterized in that: the sea
Continuous body is connect with one end of the bottom plate by the fixed frame of the bottom plate surrounding, and the other end of the bottom plate is provided with
Stepped groove and water segregator, the stepped groove constitute the cavity communicated with the water segregator, are equipped in the stepped groove
Bolt has external screw thread on the bolt, has in matching with the external screw thread of the bolt in the stepped groove
Screw thread.
2. Chinese literature according to claim 1 teaching dustproof blackboard eraser, it is characterized in that: the water segregator include into
Water cavity, the intake antrum are connect with one end for dividing water cavity that four are evenly arranged, the other end and water storage for dividing water cavity
Chamber connects, and the water chamber being evenly arranged respectively with four on the water storage cavity is connect.
3. Chinese literature according to claim 1 teaching dustproof blackboard eraser, it is characterized in that: the stepped groove and described
Bolt on be fitted with gasket.
4. Chinese literature teaching dustproof blackboard eraser according to claim 2, it is characterized in that: the water storage cavity right side
It is in 120-135 degree angle between the water chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721783019.3U CN208593221U (en) | 2017-12-19 | 2017-12-19 | Dustproof blackboard eraser is used in Chinese literature teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721783019.3U CN208593221U (en) | 2017-12-19 | 2017-12-19 | Dustproof blackboard eraser is used in Chinese literature teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208593221U true CN208593221U (en) | 2019-03-12 |
Family
ID=65599302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721783019.3U Active CN208593221U (en) | 2017-12-19 | 2017-12-19 | Dustproof blackboard eraser is used in Chinese literature teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208593221U (en) |
-
2017
- 2017-12-19 CN CN201721783019.3U patent/CN208593221U/en active Active
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