CN104082938A - Pieced chalk box capable of realizing zero contact between hands and chalks - Google Patents
Pieced chalk box capable of realizing zero contact between hands and chalks Download PDFInfo
- Publication number
- CN104082938A CN104082938A CN201410303908.XA CN201410303908A CN104082938A CN 104082938 A CN104082938 A CN 104082938A CN 201410303908 A CN201410303908 A CN 201410303908A CN 104082938 A CN104082938 A CN 104082938A
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- Prior art keywords
- box body
- chalk
- hole
- regular hexagon
- pushing block
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Abstract
The invention discloses a pieced chalk box capable of realizing zero contact between hands and chalks. The pieced chalk box comprises a hollow rectangular solid box body for accommodating chalks and a pushing rod, wherein a quadrate chalk outlet is formed under the left vertical wall of the box body; a step-type through hole composed of a regular hexagon hole and a round hole which are coaxial is formed at the lower part of the right vertical wall; the pushing rod is cylinder-shaped; the left end of the pushing rod, which is placed in the box body, is provided with a regular hexagon pushing block; the right end of the pushing rod, which is placed outside the box body, is provided with a round pushing rod for increasing contact area with fingers when the box body is pushed and pressed; the pushing rod and the round hole of the step-type through hole are in clearance fit; the regular hexagon pushing block and the regular hexagon hole of the step-type though hole are matched; a reset spring is assembled on the pushing rod; one end of the reset spring comes into contact with the right vertical wall of the box body; and the other end of the reset spring is in contact with the round pushing block. According to the pieced chalk box, chalks can be taken without contact with hands; in addition, the pieced chalk box can be sucked on a teaching platform so that the chalk box does not easily slide, or the pieced chalk box can be attached to other chalk boxes for accommodating chalks of different colors.
Description
Technical field
The present invention relates to teaching classroom apparatus.Relating in particular to zero contact of a kind of hand can assembled chalk holder.
Background technology
Chalk is as the indispensable instrument in classroom, and chalk is generally arranged on papery chalk holder, but all can make to be stained with on hand chalk dust owing to taking chalk at every turn, and the accumulation of chalk dust will the long-term health of using the teachers of chalk work of impact.Therefore, invent a kind of chalk sleeve of zero contact necessary.
And the generation of chalk sleeve, certainly will require when taking chalk also can zero contact, because the Long Term Contact of hand and chalk will cause huge injury to skin undoubtedly, and common flour pen cap material is really up to the mark, must cause that teacher writes inconvenience, affects classroom instruction.
Summary of the invention
In order to overcome existing chalk sleeve, can not avoid loading the problem of process contact chalk, the invention provides a kind of simple in structure, easy to operate chalk holder.
The technical solution adopted for the present invention to solve the technical problems is:
Zero contact of a kind of hand can assembled chalk holder, comprise hollow cuboid box body and push rod for splendid attire chalk, the left vertical wall below of described box body has square and goes out a hole, right vertical wall below has the ladder hole being comprised of coaxial regular hexagon hole and circular hole, described push rod is cylindrical, its left end that is positioned at box body is provided with regular hexagon pushing block, being positioned at right-hand member outside box body is provided with when increasing pushing and the circular pushing block of finger contact area, the circular hole matched in clearance of described push rod and ladder hole, the regular hexagon hole of described regular hexagon pushing block and described ladder hole matches, on described push rod, be arranged with back-moving spring, one end of described back-moving spring contacts with box body right vertical wall, the other end contacts with circular pushing block, the cavity volume bottom of described box body is provided with slideway along regular hexagon pushing block moving direction.
Further, the bottom of described box body is provided with magnet at the bottom of box.
Further, the front perpendicular wall inner side of described box body and rear perpendicular wall inner side are provided with sidewall magnet.
It is chalk outlet that square goes out a hole, and circular hole coordinates with push rod clearance, and back-moving spring is enclosed within on push rod, mainly plays the effect of ejecting push rod.
The length and width size of box is according to the size setting of general chalk, and assurance chalk is released smoothly.Regular hexagon pushing block guarantees that push rod moves horizontally, and circular pushing block prevents that back-moving spring from coming off and reducing pressure while pushing away.
Outer box-shaped structure arranges differing heights, and different colours, distinguish the chalk of different colours, increase aesthetic property, and box body bottom, front perpendicular wall inner side and rear perpendicular wall inner side are all with magnet, the effect of magnet makes energy seamless link between each chalk holder, and can firmly chalk holder is fixed on blackboard and on dais.
Before use, chalk holder is filled to chalk, during use, applying light push rod, push rod from going out a hole out, now can be clamped one end of chalk by promotion chalk with chalk sleeve, pressed from both sides out, and whole process does not need to touch chalk.After chalk takes out, can unclamp push rod, push rod by back-moving spring elastic force under reset, and regular hexagon pushing block is also embedded in regular hexagon hole completely, and when push rod resets, now the chalk of last layer is due to the effect of gravity, to move down, replace the position of original chalk.
Compared with prior art, the invention has the beneficial effects as follows: chalk holder provided by the invention need not contact chalk by hand, just can realize and take chalk, chalk holder strong magnets holds dais simultaneously, make chalk holder be difficult for sliding, be more suitable for grasp, or be integral with other chalk holder absorption, for packing the chalk of different colours into, use.
Accompanying drawing explanation
Fig. 1 is the perspective view of the embodiment of the present invention.
Fig. 2 is the cross-sectional schematic of the embodiment of the present invention.
Fig. 3 is that schematic diagram is looked on a left side for the embodiment of the present invention.
Fig. 4 is the schematic top plan view of the embodiment of the present invention.
In figure: 1-box body; 11-slideway; 2-sidewall magnet; 3-push rod; 31-regular hexagon pushing block; The circular pushing block of 32-; 4-back-moving spring; Magnet at the bottom of 5-box; 6-goes out a hole.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, goal of the invention of the present invention is described in further detail, embodiment can not repeat one by one at this, but therefore embodiments of the present invention are not defined in following examples.
As shown in Figure 1, zero contact of a kind of hand can assembled chalk holder, comprise hollow cuboid box body 1 and push rod 3 for splendid attire chalk, the left vertical wall below of described box body 1 has square and goes out a hole 6 (seeing Fig. 3), right vertical wall below has the ladder hole being comprised of coaxial regular hexagon hole and circular hole, described push rod 3 is cylindrical, its left end that is positioned at box body is provided with regular hexagon pushing block 31, being positioned at right-hand member outside box body is provided with when increasing pushing and the circular pushing block 32 of finger contact area, the circular hole matched in clearance of described push rod 3 and ladder hole, described regular hexagon pushing block 31 matches with the regular hexagon hole of described ladder hole, on described push rod 3, be arranged with back-moving spring 4, one end of described back-moving spring 4 contacts with box body 1 right vertical wall, the other end contacts with circular pushing block 32, the cavity volume bottom of described box body 1 is provided with slideway 11 along regular hexagon pushing block 31 moving directions.
As shown in Figure 2, the bottom of described box body 1 is provided with magnet 5 at the bottom of 3 linearly aligned boxes, chalk holder can be adsorbed on dais and blackboard, can guarantee the firm of chalk holder.
As shown in Figure 2, the front perpendicular wall inner side of described box body 1 and rear perpendicular wall inner side are respectively provided with sidewall magnet 2, in the present embodiment, front perpendicular wall inner side and rear perpendicular wall inner side are respectively provided with four blocks of sidewall magnet 2, can make a plurality of chalk holder seamless links, for reprinting the chalk of different colours, box body 1 can be arranged to differing heights, different colours, Main Function is the chalk of distinguishing different colours, and highly different box bodys is stitched together, stereovision is clearly demarcated, increases its aesthetic property.
As shown in Figure 4, the inner bottom part of box body 1 is provided with slideway, and push rod 3 can be moved along slideway 11 smoothly at six regular hexagon pushing blocks 31 of box body 1 inner side, and anti-throw-out lever 3 is upturned or left and right skew, guarantee making smooth advances of push rod 3, reduce the resistance in implementation process.
The above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in the protection domain of the claims in the present invention.
Claims (3)
1. a hand zero contact can assembled chalk holder, it is characterized in that: comprise hollow cuboid box body (1) and push rod (3) for splendid attire chalk, the left vertical wall below of described box body (1) has square and goes out a hole (6), right vertical wall below has the ladder hole being comprised of coaxial regular hexagon hole and circular hole, described push rod (3) is cylindrical, its left end that is positioned at box body (1) is provided with regular hexagon pushing block (31), being positioned at the outer right-hand member of box body (1) is provided with when increasing pushing and the circular pushing block (32) of finger contact area, the circular hole matched in clearance of described push rod (3) and ladder hole, described regular hexagon pushing block (31) matches with the regular hexagon hole of described ladder hole, on described push rod (3), be arranged with back-moving spring (4), one end of described back-moving spring (4) contacts with box body (1) right vertical wall, the other end contacts with circular pushing block (32), the cavity volume bottom of described box body (1) is provided with slideway (11) along regular hexagon pushing block (31) moving direction.
2. hand according to claim 1 zero contact can assembled chalk holder: it is characterized in that: (1 bottom is provided with magnet (5) at the bottom of box to described box body.
3. hand according to claim 1 and 2 zero contact can assembled chalk holder: it is characterized in that: inside described box body (1) front perpendicular wall inner side and rear perpendicular wall, be provided with sidewall magnet (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410303908.XA CN104082938A (en) | 2014-06-30 | 2014-06-30 | Pieced chalk box capable of realizing zero contact between hands and chalks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410303908.XA CN104082938A (en) | 2014-06-30 | 2014-06-30 | Pieced chalk box capable of realizing zero contact between hands and chalks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104082938A true CN104082938A (en) | 2014-10-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410303908.XA Pending CN104082938A (en) | 2014-06-30 | 2014-06-30 | Pieced chalk box capable of realizing zero contact between hands and chalks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104082938A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109664655A (en) * | 2019-01-21 | 2019-04-23 | 湖北工程职业学院 | A kind of Portable novel blackboard eraser |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201243714Y (en) * | 2008-08-14 | 2009-05-27 | 齐雨雨 | Chalk Case |
| CN202456938U (en) * | 2011-11-09 | 2012-10-03 | 张彭朋 | Automatic chalk holder |
| CN203538585U (en) * | 2013-06-18 | 2014-04-16 | 上海市静安区教育学院附属学校 | Classified storage device for teaching tools |
| CN203969550U (en) * | 2014-06-30 | 2014-12-03 | 华南理工大学 | Zero contact of a kind of hand can assembled chalk holder |
-
2014
- 2014-06-30 CN CN201410303908.XA patent/CN104082938A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201243714Y (en) * | 2008-08-14 | 2009-05-27 | 齐雨雨 | Chalk Case |
| CN202456938U (en) * | 2011-11-09 | 2012-10-03 | 张彭朋 | Automatic chalk holder |
| CN203538585U (en) * | 2013-06-18 | 2014-04-16 | 上海市静安区教育学院附属学校 | Classified storage device for teaching tools |
| CN203969550U (en) * | 2014-06-30 | 2014-12-03 | 华南理工大学 | Zero contact of a kind of hand can assembled chalk holder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109664655A (en) * | 2019-01-21 | 2019-04-23 | 湖北工程职业学院 | A kind of Portable novel blackboard eraser |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141008 |