CN203814814U - Portable chalk holder - Google Patents
Portable chalk holder Download PDFInfo
- Publication number
- CN203814814U CN203814814U CN201420194730.5U CN201420194730U CN203814814U CN 203814814 U CN203814814 U CN 203814814U CN 201420194730 U CN201420194730 U CN 201420194730U CN 203814814 U CN203814814 U CN 203814814U
- Authority
- CN
- China
- Prior art keywords
- chalk
- groove
- spindle carrier
- bearing
- bevel gear
- 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)
- Toys (AREA)
Abstract
The utility model discloses a portable chalk holder, comprising a rotary table, a driving bevel gear, a driven bevel gear, a ball bearing, a bearing bracket, a first spindle bracket, a second spindle bracket, a base, a chalk groove, a spindle, a connecting rod, a drum with a groove, a drum housing and a chalk taking plate. According to the portable chalk holder, the rotary table is rotated manually so as to drive the driving bevel gear to rotate through the connecting rod, so that the driven bevel gear rotates, so as to drive the drum with the groove to rotate; the chalk inside the groove of the drum slips off from the chalk taking plate for use by people when the drum with the groove rotates for a certain angle. The device has the characteristics of being simple, fast and efficient to operate, and clean, and can continuously work.
Description
Technical field
The utility model relates to a kind of teaching aid device, particularly a kind of Portable chalk box.
Background technology
Chalk is all the indispensable basic tool of class-teaching of teacher all the time, even in the popular epoch of multimedia, still play an important role.But the observation according to us in campus, the chalk preservation condition in classroom is also bad.Teacher's situation that lacks chalk of attending class happens occasionally, and on lectern, the remains of chalk are seen everywhere.So both waste valuable instructional blocks of time, also affected teacher's teaching mood and the teaching environment in classroom.
Summary of the invention
This device in order to solve the problem in above-mentioned, has proposed a kind of operation simple and easy just, and Portable chalk box that can continued operation.
In order to realize the function of automatically taking chalk, the utility model adopts following technical proposals to realize: a kind of Portable chalk box, it is made up of with plate rotating disk, drive bevel gear, driven wheel of differential, ball bearing, the support of bearing, No. 1, spindle carrier, No. 2, spindle carrier, base, ledge for chalk on blackboard, main shaft, connecting rod, the cylinder with groove, barrel shrond, chalk taking.Be connected with spindle carrier above base No. 1, No. 2, spindle carrier, the support of bearing.Main shaft is connected between No. 2, No. 1, spindle carrier and spindle carrier, and ledge for chalk on blackboard is connected on barrel shrond top, and barrel shrond is fixed on No. 2, spindle carrier.Driven wheel of differential is enclosed within main shaft one end near No. 1, spindle carrier, and the cylindrical sleeve with groove is the one end near No. 2, spindle carrier at main shaft, and driven wheel of differential is connected with the cylinder with groove.Ball bearing is connected on the support of bearing, and rotating disk is connected with connecting rod, and connecting rod is connected with drive bevel gear through bearing, and barrel shrond below is connected with chalk taking plate.
The beneficial effects of the utility model are: simple in structure, easy operating, can realize continuity operation.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
In Fig. 1,1. ledge for chalk on blackboard, 2. driven wheel of differential, 3. main shaft, 4. connecting rod, 5. drive bevel gear, 6. No. 1, spindle carrier, the 7. support of bearing, 8. ball bearing, 9. rotating disk, 10. base, 11. chalk taking plates, 12. No. 2, spindle carriers, 13. cylinders with groove, 14. barrel shronds.
Detailed description of the invention
Chalk is deposited in ledge for chalk on blackboard (1), in the time of needs chalk, hand rotates rotating disk (9), rotating disk (9) drivening rod (4) rotates drive bevel gear (5), thereby the driven wheel of differential (2) that makes to be enclosed within on main shaft (3) rotates, driven wheel of differential (2) drives the cylinder (13) with groove to rotate, chalk falls in the groove of cylinder, groove size is just in time put piece of chalk, in the time that the cylinder with groove (13) turns an angle, the chalk in the groove of cylinder (13) can skid off from the plate for chalk taking (11) being connected in barrel shrond (14); The support of bearing (7) is supporting the ball bearing (8) being enclosed within on connecting rod (4), play the effect of support link (4), main shaft (3) is connected between spindle carrier No. 1 (6) and spindle carrier No. 2 (12), spindle carrier No. 1 (6), spindle carrier No. 2 (12), the supports of bearing (7) are connected on base (10) above, simple to operate, quick, efficient, clean and continuous type feature that this device has.
Claims (1)
1. a Portable chalk box, it is made up of with plate rotating disk, drive bevel gear, driven wheel of differential, ball bearing, the support of bearing, No. 1, spindle carrier, No. 2, spindle carrier, base, ledge for chalk on blackboard, main shaft, connecting rod, the cylinder with groove, barrel shrond, chalk taking; It is characterized in that be connected with spindle carrier above described base No. 1, No. 2, spindle carrier, the support of bearing; Described main shaft is connected between No. 2, No. 1, spindle carrier and spindle carrier, and ledge for chalk on blackboard is connected on barrel shrond, and barrel shrond is fixed on No. 2, spindle carrier; Described driven wheel of differential is enclosed within main shaft one end near No. 1, spindle carrier, and the cylindrical sleeve with groove is the one end near No. 2, spindle carrier at main shaft, and driven wheel of differential is connected with the cylinder with groove; Described ball bearing is connected on the support of bearing, and rotating disk is connected with connecting rod, and connecting rod is connected with drive bevel gear through bearing, and barrel shrond below is connected with chalk taking plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194730.5U CN203814814U (en) | 2014-04-22 | 2014-04-22 | Portable chalk holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194730.5U CN203814814U (en) | 2014-04-22 | 2014-04-22 | Portable chalk holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203814814U true CN203814814U (en) | 2014-09-10 |
Family
ID=51470374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420194730.5U Expired - Fee Related CN203814814U (en) | 2014-04-22 | 2014-04-22 | Portable chalk holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203814814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586023A (en) * | 2015-01-08 | 2015-05-06 | 长春理工大学 | Device for temporarily storing and gradually sending out chalks |
-
2014
- 2014-04-22 CN CN201420194730.5U patent/CN203814814U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586023A (en) * | 2015-01-08 | 2015-05-06 | 长春理工大学 | Device for temporarily storing and gradually sending out chalks |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20150422 |
|
| EXPY | Termination of patent right or utility model |