CN204617344U - The chalk holder of appliance for releasing single powder feeding pen - Google Patents
The chalk holder of appliance for releasing single powder feeding pen Download PDFInfo
- Publication number
- CN204617344U CN204617344U CN201520324591.8U CN201520324591U CN204617344U CN 204617344 U CN204617344 U CN 204617344U CN 201520324591 U CN201520324591 U CN 201520324591U CN 204617344 U CN204617344 U CN 204617344U
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- CN
- China
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- chalk
- chalk holder
- push rod
- depression bar
- ratchet
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Abstract
The utility model discloses a kind of chalk holder of appliance for releasing single powder feeding pen, comprise depression bar, linkage rod slide block mechanism, ratchet mechanism and chalk holder, described chalk holder has some chambeies of annular spread along axis, described chamber upper end open, bottom is provided with stepped hole, and ratchet and the chalk holder of described ratchet mechanism coaxially assemble; Described depression bar vertically can be arranged in resilience, and described depression bar is connected with push rod, and a stepped hole for bottom, chamber is stretched in the end of described push rod; Described linkage rod slide block mechanism comprises connecting rod and slide bar, described depression bar by a push rod and rod hinge connection, the connecting rod other end and slide bar hinged, described slide bar is slidably arranged in the chute of the first bearing, and described slide bar is provided with the pushing block ratchet be engaged with described ratchet.The utility model structure is simple, and mechanism stable is reliable, efficiently solves a difficult problem of getting chalk from existing chalk holder, not easily makes chalk be broken into chalk end, avoid the waste of chalk, also furthermore achieved that the neat and artistic of dais.
Description
Technical field
The utility model belongs to teaching equipment, be specifically related to a kind of can the chalk holder of appliance for releasing single powder feeding pen.
Background technology
In present teaching equipment, chalk is most widely used writing implement, chalk be all box-packed with chalk holder after be placed on dais for teacher, usually when taking chalk, not easily the chalk of marshalling is taken out from chalk holder, and be difficult to once take out complete chalk, take out chalk and be easily broken into a few budgust nib, the less chalk end broken just directly is abandoned usually causes waste, chalk particularly in a whole box chalk holder be all press arranged together, more difficult when getting piece of chalk, also easy chalk holder to be burst, chalk is scattered on dais.Chalk holder is directly placed on surface, dais simultaneously, and unsightly, the chalk end be scattered easily tumbles everywhere on dais, and existing dais has the electronic equipment be combined with classroom multimedia mostly, the impact easily caused electronic instruction equipment of being scattered of chalk.
Utility model content
The technical problem that the utility model solves is: get for from existing chalk holder the defect that chalk is easily broken, chalk holder that is that expose affects dais allomeric function, there is provided a kind of novel can the chalk holder of appliance for releasing single powder feeding pen, can combine with dais, automatically from chalk holder be hit by a bullet powder delivery written confession teacher use.
The utility model adopts following technical scheme to realize:
A chalk holder for appliance for releasing single powder feeding pen, comprises depression bar 1, linkage rod slide block mechanism, ratchet mechanism and chalk holder 9,
Described chalk holder 9 is evenly distributed with some the chambeies 13 of annular spread centered by axis, described chamber 13 upper end open, and bottom is provided with stepped hole, and ratchet 8 and the chalk holder 9 of described ratchet mechanism coaxially assemble;
Described depression bar 1 vertically can be arranged in resilience, and described depression bar 1 is connected with push rod 11, and the stepped hole of bottom, a chamber 13 is stretched in the end of described push rod 11;
Described linkage rod slide block mechanism comprises connecting rod 4 and slide bar 7, described depression bar 1 is hinged with connecting rod 4 by a push rod 2, connecting rod 4 other end and slide bar 7 hinged, described slide bar 7 is slidably arranged in the chute of the first bearing 5, and described slide bar 7 is provided with the pushing block ratchet 6 be engaged with described ratchet 8.
Further, described depression bar 1 and push rod 2 are slidably arranged on the second bearing 12;
Be provided with slot bottom described depression bar 1 and be sleeved on push rod 2 top, between described depression bar 1 and push rod 2, being provided with the first spring 14;
The bottom of described push rod 2 is inserted in the sleeve 3 of the second bearing 12 bottom, is provided with the second spring 15 of compression by depression bar 1 and push rod 2 resilience in described sleeve 3.
Further, the coefficient of elasticity of described first spring 14 is less than the coefficient of elasticity of the second spring 15.
Further, described push rod 11 is U-shaped bar, and one end and depression bar 1 are connected, and the other end vertically stretches into the stepped hole of bottom, a chamber 13.
Further, the number of teeth of described ratchet 8 and a chamber number of chalk holder 9 consistent.
Described linkage rod slide block mechanism in the utility model and ratchet mechanism are assemblied in inside, dais, end face and the depression bar 1 of described chalk holder 9 are inlaid in surface, dais, and integrate with multi-media platform, surface, dais is cleaner and tidier, chalk can not be scattered in dais again, affects dais beautiful and clean.
Chalk holder of the present utility model adopts the chalk holder being different from existing carton shape, the chalk pen chamber of annular arrangement is adopted to load chalk respectively, by the resilience of depression bar, chalk is ejected from a chamber, depression bar drives chalk holder to rotate by push rod drivening rod slide block mechanism and ratchet mechanism simultaneously, wheel is carried out in a vacant chalk holder chamber after ejecting chalk turn, chalk automatic spring is realized by mechanical mechanism, structure is simple, mechanism stable is reliable, efficiently solve a difficult problem of getting chalk from common flour pencil box, chalk ejects automatically from a chamber of chalk holder, chalk is not easily made to be broken into chalk end when getting chalk again, avoid the waste of chalk, and furthermore achieved that the neat and artistic of dais.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the chalk holder of appliance for releasing single powder feeding pen of the present utility model.
Fig. 2 is a chamber schematic internal view of chalk holder.
Fig. 3 is depression bar of the present utility model, assembling schematic diagram between push rod and sleeve.
Number in the figure: 1-depression bar, 2-push rod, 3-sleeve, 4-connecting rod, 5-first bearing, 6-pushing block ratchet, 7-slide bar, 8-ratchet, 9-chalk holder, 10-chalk, 11-push rod, 12-second bearing, 13-chamber, 14-first spring, 15-second spring.
Detailed description of the invention
Embodiment
See Fig. 1, a kind of chalk holder of appliance for releasing single powder feeding pen, comprise depression bar 1, linkage rod slide block mechanism, ratchet mechanism and chalk holder 9, depression bar 1 can be arranged in resilience, chalk holder is driven to rotate by linkage rod slide block mechanism and ratchet mechanism, depression bar 1 is connected to the chalk 10 be inserted in chalk holder simultaneously by push rod 11, ejected by chalk.
In conjunction with see Fig. 2, chalk holder 9 is distributed with some the chambeies 13 of annular spread centered by axis, a chamber 13 upper end open, bottom is provided with stepped hole, chalk 10 is vertically inserted in a chamber 13, and bottom is located by stepped hole, and ratchet 8 and the chalk holder 9 of ratchet mechanism coaxially assemble.
Depression bar 1 vertically can be arranged by Compress Spring in resilience, depression bar 1 and push rod 11 are connected, drive push rod 11 together resilience up and down, push rod 11 is U-shaped bar, one end and depression bar 1 are connected, the other end vertically stretches into the stepped hole of bottom, a chamber 13, is ejected by the chalk in a chamber under the rebound effect of depression bar 1.
Linkage rod slide block mechanism comprises connecting rod 4 and slide bar 7, and depression bar 1 is hinged with connecting rod 4 by a push rod 2, specifically see Fig. 3, is provided with slot and is sleeved on push rod 2 top, be provided with the first spring 14 between depression bar 1 and push rod 2 bottom depression bar 1; The bottom of push rod 2 is inserted in the sleeve 3 of the second bearing 12 bottom, is provided with the second spring 15 of compression by depression bar 1 and push rod 2 resilience in sleeve 3.Connecting rod 4 one end and push rod 2 hinged, the other end and slide bar 7 hinged, slide bar 7 is slidably arranged in the chute of the first bearing 5, the transform linear motion up and down of push rod is become the horizontal rectilinear motion of slide bar 7.Slide bar 7 is provided with the pushing block ratchet 6 be engaged with ratchet 8, in the process of slide bar 7 rectilinear motion, push rod 2 is descending, and the pushing block ratchet 6 on slide bar 7 promotes the angle of a pawl wheel ratchet, and chalk holder wheel turns the angle in chamber simultaneously, push rod 2 resilience is up, pushing block ratchet 6 on slide bar 7, according to the unidirectional drive characteristic of ratchet mechanism, can not drive ratchet to turn round, and pushing block ratchet returns the distance of a ratchet simultaneously, when push rod 2 is again descending, promotes chalk holder wheel continuously and turn.
Therefore, in a particular application, the number of teeth of ratchet 8 is consistent with a chamber number of chalk holder 9, and namely pushing block ratchet 6 promotes the angle of a pawl wheel ratchet, and chalk holder 9 moving runner turns chamber, is ejected by the chalk in a chamber for continuous.
The linkage rod slide block mechanism that chalk holder controls and ratchet mechanism can be assemblied in inside, dais, and end face and the depression bar 1 of chalk holder 9 are inlaid in surface, dais, integrate with multi-media platform, and surface, dais more neatly, chalk can not be scattered again, and affects dais beautiful and clean by dais.
The specific works principle that chalk ejects is as follows: by down-pressed pole 1, the coefficient of elasticity of the first spring 14 between depression bar and push rod is less than the coefficient of elasticity of the second spring 15, first spring 14 first compresses, depression bar 1 first moves down relative to push rod 2, push rod 11 is driven to exit from a chamber of chalk holder, avoid push rod to produce when follow-up chalk holder wheel turns to interfere, then depression bar 1 continues to press down, make the second spring stress compression between push rod and sleeve, push rod 2 vertical downward movement, connecting rod 4 promotes slide bar 7 and travels forward, the pushing block ratchet 6 be assembled on slide bar 7 promotes from initial position the angle that ratchet 8 rotates counterclockwise chamber, when unclamping the pressure on depression bar, under the effect of two spring-return power of compression, in a chamber after wheel turns by the push rod 11 that depression bar 1 connects, chalk upwards ejects, slide bar 7 is by the position of a pushing block ratchet 6 slow astern ratchet simultaneously, get back to initial position, each convert reciprocating motion of pushing block ratchet 6 is that the rotary motion of ratchet realizes often promoting the function that a tooth pitch just ejects a chalk, namely often a chalk is sent by depression bar 1 next time with regard to bullet.
These are only preferred embodiment of the present utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. the chalk holder of appliance for releasing single powder feeding pen, is characterized in that: comprise depression bar (1), linkage rod slide block mechanism, ratchet mechanism and chalk holder (9),
Described chalk holder (9) is evenly distributed with some the chambeies (13) of annular spread centered by axis, described chamber (13) upper end open, bottom is provided with stepped hole, and ratchet (8) and the chalk holder (9) of described ratchet mechanism coaxially assemble;
Described depression bar (1) vertically can be arranged in resilience, and described depression bar (1) is connected with push rod (11), and the stepped hole of a chamber (13) bottom is stretched in the end of described push rod (11);
Described linkage rod slide block mechanism comprises connecting rod (4) and slide bar (7), described depression bar (1) is hinged by a push rod (2) and connecting rod (4), connecting rod (4) other end and slide bar (7) hinged, described slide bar (7) is slidably arranged in the chute of the first bearing (5), and described slide bar (7) is provided with the pushing block ratchet (6) be engaged with described ratchet (8).
2. the chalk holder of appliance for releasing single powder feeding pen according to claim 1, described push rod (2) is slidably arranged on the second bearing (12);
Described depression bar (1) bottom is provided with slot and is sleeved on push rod (2) top, is provided with the first spring (14) between described depression bar (1) and push rod (2);
The bottom of described push rod (2) is inserted in the sleeve (3) of the second bearing (12) bottom, is provided with second spring (15) of compression by depression bar (1) and push rod (2) resilience in described sleeve (3).
3. the chalk holder of appliance for releasing single powder feeding pen according to claim 2, the coefficient of elasticity of described first spring (14) is less than the coefficient of elasticity of the second spring (15).
4. the chalk holder of appliance for releasing single powder feeding pen according to claim 1, described push rod (11) is U-shaped bar, and one end and depression bar (1) are connected, and the other end vertically stretches into the stepped hole of a chamber (13) bottom.
5. the chalk holder of appliance for releasing single powder feeding pen according to claim 1, the number of teeth of described ratchet (8) is consistent with a chamber number of chalk holder (9).
6. the chalk holder of the appliance for releasing single powder feeding pen according to any one of claim 1-5, described linkage rod slide block mechanism and ratchet mechanism are assemblied in inside, dais, and end face and the depression bar (1) of described chalk holder (9) are inlaid in surface, dais.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520324591.8U CN204617344U (en) | 2015-05-19 | 2015-05-19 | The chalk holder of appliance for releasing single powder feeding pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520324591.8U CN204617344U (en) | 2015-05-19 | 2015-05-19 | The chalk holder of appliance for releasing single powder feeding pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204617344U true CN204617344U (en) | 2015-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520324591.8U Expired - Fee Related CN204617344U (en) | 2015-05-19 | 2015-05-19 | The chalk holder of appliance for releasing single powder feeding pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204617344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502214A (en) * | 2021-07-30 | 2021-10-15 | 烟台国际旅行卫生保健中心(烟台海关口岸门诊部) | Sampling device and method for detecting pathogenic microorganisms |
-
2015
- 2015-05-19 CN CN201520324591.8U patent/CN204617344U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502214A (en) * | 2021-07-30 | 2021-10-15 | 烟台国际旅行卫生保健中心(烟台海关口岸门诊部) | Sampling device and method for detecting pathogenic microorganisms |
| CN113502214B (en) * | 2021-07-30 | 2024-03-01 | 烟台国际旅行卫生保健中心(烟台海关口岸门诊部) | Sampling device and method for detecting pathogenic microorganisms |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20170519 |