CN202934989U - Novel chalk device - Google Patents
Novel chalk device Download PDFInfo
- Publication number
- CN202934989U CN202934989U CN 201220691605 CN201220691605U CN202934989U CN 202934989 U CN202934989 U CN 202934989U CN 201220691605 CN201220691605 CN 201220691605 CN 201220691605 U CN201220691605 U CN 201220691605U CN 202934989 U CN202934989 U CN 202934989U
- Authority
- CN
- China
- Prior art keywords
- chalk
- chalkboard eraser
- cover
- casing
- push rod
- 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 relates to a chalk device, and provides a novel chalk device. The novel chalk device comprises a chalk shell and a chalk eraser casing which is installed on the chalk shell. A clamp block is arranged inside the chalk shell. A clamping block is arranged at the bottom of the chalk shell. A chalk is just clamped by an area formed in the middle of the clamping block. A separating plate is arranged in the chalk eraser casing. The separating plate is provided with a spring which is connected with a chalk eraser. Due the fact that the chalk is covered by a shell in use, chalk ash which falls off can be greatly reduced. Meanwhile, a chalk eraser is installed, use is convenient. The novel chalk device not only protects the environment, but also prevents the chalk ash from influencing health of a user.
Description
Technical field
The utility model relates to a kind of chalk device.
Background technology
The now teaching mode overwhelming majority of giving lessons still adopts chalk to write impart knowledge on blackboard.The problem that the tradition chalk exists is mainly can produce a lot of chalk dusts in the process of chalk-writing and in the process that erases the board, and chalk dust is scattered in and is easy in air be absorbed the healthy of harm academics and students by respiratory tract.And with the supporting traditional chalkboard eraser Main Problems of chalk be that the user hand in use occurs and is stained with chalk dust even with it, simultaneously, also often run into situation about temporarily can not find, just use cloth and replace using, repeatedly use can cause blackboard eraser unclean like this.
Summary of the invention
The purpose of this utility model is: the deficiency for prior art exists, provide a kind of simple in structure, and reduce in a large number the Novel chalk device of the instant wiping type of chalk dust.
For realizing the purpose of the utility model, be achieved by the following technical solutions:
A kind of Novel chalk device comprises Chalk casing and the chalkboard eraser cover that is contained on Chalk casing, and the inside of described Chalk casing is provided with fixture block, and the bottom of Chalk casing is provided with block, and the zone that forms in the middle of block is the clamping chalk just; Be provided with dividing plate in described chalkboard eraser cover, spring is housed on dividing plate, be connected with chalkboard eraser on spring.
As preferred version: connect for rotating closely between described Chalk casing and described chalkboard eraser cover.
As preferred version: be connected with fixed block and push rod on the side of described chalk sassafras, fixed block and push rod clamping mutually, be provided with the chute that is complementary with push rod in described chalkboard eraser cover, the lateral wall of chalkboard eraser cover is provided with switch and described fixed block interconnects, chalkboard eraser puts and is provided with the shielding cover that mate mutually at top with it, described push rod and shielding cover mutually near.
As preferred version: be connected through the hinge between the sidewall of described shielding cover and chalkboard eraser cover.
The beneficial effects of the utility model are: with shell, chalk sleeve is got up to use, can reduce in a large number chalk dust and drop, chalkboard eraser is housed simultaneously, it is more convenient to use.Namely protect environment, avoided again chalk dust to affect user's health.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is that the A of Fig. 1 is to enlarged drawing;
Fig. 3 is the structural representation of the B-B of Fig. 1.
The specific embodiment
The below 1-4 with reference to the accompanying drawings makes a detailed explanation a kind of Novel chalk device of the specific embodiment of the present utility model.
Embodiment
A kind of Novel chalk device comprises Chalk casing 1 and the chalkboard eraser cover 2 that is contained on Chalk casing 1, and the inside of described Chalk casing 1 is provided with fixture block 3, and the bottom of Chalk casing 1 is provided with block 4, and the zone that forms in the middle of block 4 is clamping chalk 8 just; Be provided with dividing plate 5 in described chalkboard eraser cover 2, spring 6 is housed on dividing plate 5, be connected with chalkboard eraser 7 on spring 6.Connect for rotating closely between described Chalk casing 1 and described chalkboard eraser cover 2.Be connected with fixed block 9 and push rod 10 on the side of chalk sassafras, fixed block 9 and push rod 10 clamping mutually, be provided with the chute 11 that is complementary with push rod 10 in described chalkboard eraser cover 2, the lateral wall of chalkboard eraser cover 2 is provided with switch 12 and interconnects with described fixed block 9, chalkboard eraser cover 2 is provided with the shielding cover 13 that mate mutually at top with it, described push rod 10 and shielding cover 13 mutually overlap between 2 sidewall near, described shielding cover 13 and chalkboard eraser and are connected by hinge 14.Catenation principle between switch 12, fixed block 9 and push rod 10 is prior art.
In use, two hands rotate turns on chalkboard eraser cover 2, chalk 8 is put into Chalk casing 1, due to fixture block 3 being arranged in Chalk casing 1, press down chalk 8 with a little power, chalk 8 could be from opposite side out, and the while is because there is the design of block 4, the powder of chalk 8 has all been stayed in Chalk casing 1, then chalkboard eraser cover 2 is rotated back into Chalk casing 1 top just can directly use.In the time of need to using chalkboard eraser 7, as long as press switch 12, original fixed block 9 is pushed down chalkboard eraser 7, the spring 6 that chalkboard eraser 7 belows connect is in deformed state, the power of pressing is removed, chalkboard eraser 7 forms a power that makes progress, promoted simultaneously to be connected to the push rod 10 on chalkboard eraser 7, push rod 10 is upwards motion in chute 11, push rod 10 and chalkboard eraser 7 have imposed on shielding cover 13 to power simultaneously, shielding cover 13 is got on by the top, and the side side-mounted of shielding cover 13 has hinge, and the point of having crossed straight line when the power that shielding cover 13 makes progress just opens on a side naturally.This moment chalkboard eraser 7 the bottom surface just with the end face of chalkboard eraser cover 2 at grade, can arbitrarily use chalkboard eraser 7 to erase the board.After being finished chalkboard eraser 7, only need to go back shielding cover 13 passes, push rod 10 is under pressure and drives chalkboard eraser cover 2 and move downward, when reaching with the enable possition, fixed block 9 and push rod 10 clamping mutually, the state of switch 12 rebound lockings, this moment, shielding cover 13 coincided with chalkboard eraser 7.
Claims (4)
1. Novel chalk device, it is characterized in that, comprise Chalk casing (1) and be contained in chalkboard eraser cover (2) on Chalk casing (1), the inside of described Chalk casing (1) is provided with fixture block (3), the bottom of Chalk casing (1) is provided with block (4), and the zone that forms in the middle of block (4) is clamping chalk (8) just; Be provided with dividing plate (5) in described chalkboard eraser cover (2), spring (6) is housed on dividing plate (5), be connected with chalkboard eraser (7) on spring (6).
2. a kind of Novel chalk device according to claim 1, is characterized in that, connects for rotating closely between described Chalk casing (1) and described chalkboard eraser cover (2).
3. a kind of Novel chalk device according to claim 1, it is characterized in that, be connected with fixed block (9) and push rod (10) on the side of described chalk sassafras, fixed block (9) and push rod (10) clamping mutually, be provided with the chute (11) that is complementary with push rod (10) in described chalkboard eraser cover (2), the lateral wall of chalkboard eraser cover (2) is provided with switch (12) and interconnects with described fixed block (9), chalkboard eraser cover (2) is provided with the shielding cover (13) that mate mutually at top with it, described push rod (10) and shielding cover (13) mutually near.
4. a kind of Novel chalk device according to claim 3, is characterized in that, is connected by hinge (14) between the sidewall of described shielding cover (13) and chalkboard eraser cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220691605 CN202934989U (en) | 2012-12-14 | 2012-12-14 | Novel chalk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220691605 CN202934989U (en) | 2012-12-14 | 2012-12-14 | Novel chalk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202934989U true CN202934989U (en) | 2013-05-15 |
Family
ID=48319245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220691605 Expired - Fee Related CN202934989U (en) | 2012-12-14 | 2012-12-14 | Novel chalk device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202934989U (en) |
-
2012
- 2012-12-14 CN CN 201220691605 patent/CN202934989U/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: 20130515 Termination date: 20131214 |