CN206086076U - Prevent cracked chalk cover of chalk - Google Patents
Prevent cracked chalk cover of chalk Download PDFInfo
- Publication number
- CN206086076U CN206086076U CN201620799422.4U CN201620799422U CN206086076U CN 206086076 U CN206086076 U CN 206086076U CN 201620799422 U CN201620799422 U CN 201620799422U CN 206086076 U CN206086076 U CN 206086076U
- Authority
- CN
- China
- Prior art keywords
- chalk
- protection cylinder
- push rod
- air bag
- thick bamboo
- 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 discloses a prevent cracked chalk cover of chalk, including a protection section of thick bamboo, the outer wall cavity of a protection section of thick bamboo to the equal fixed mounting of outer wall of protection section of thick bamboo both sides has an album grey mechanism, the internal thread of a protection section of thick bamboo is connected with push rod, and upper and lower both sides that push rod is located protection section of thick bamboo one end are all articulated to have curved pinch -off blades to pass through closing spring elastic connection between two pinch -off blades, pinch -off blades change with the fixed ann in push rod's junction has rubber gasket, the equal movable mounting in opening part both sides that push rod one end was kept away from to a protection section of thick bamboo has stop gear. The utility model discloses a setting up an album grey mechanism, utilizing extrusion device extruded air bag to derive gas from the outlet duct, it is leading -in to the ash storage cavity in through advancing the ash pipe with the chalk dust to recycle the negative pressure that produces when the gasbag resumes, prevent that the chalk dust from influence teachers and students' health, and the effectual chalk dust that scatters of having solved is difficult to the problem of clearing up moreover.
Description
Technical field
The utility model is related to environmentally friendly teaching aid technical field, specially a kind of chalk sleeve for preventing chalk from rupturing.
Background technology
Can usually use chalk in teaching, but present chalk using to it is shorter when, teacher just cannot arrest, and right
Fracture is easy to again when in use in longer chalk, so as to cause the waste of chalk, and for the powder produced when writing
Ash cannot be reclaimed effectively, and not only resulting in chalk dust affects the health of teachers and students, and the chalk dust being scattered to be difficult to clear up, so
We have proposed a kind of prevents the chalk sleeve that chalk ruptures solving the problems, such as the above.
Utility model content
The purpose of this utility model is to provide a kind of chalk sleeve for preventing chalk from rupturing, and possesses anti-fracture and recyclable powder
The advantage of pen ash, solves the problems, such as that chalk is easily broken off when in use and chalk dust cannot be reclaimed effectively.
For achieving the above object, the utility model provides following technical scheme：A kind of chalk sleeve for preventing chalk from rupturing, bag
Protection cylinder is included, the outer wall of the protection cylinder is hollow, and protect the outer wall of a both sides to be installed with Ji Hui mechanisms, the guarantor
The internal whorl of casing is connected with push rod, and push rod is located at the clamping that the both sides up and down of protection cylinder one end are hinged with arc
By fastening spring elastic connection between plate, and two clamping plates, the clamping plate is fixed peace and is turned with the junction of push rod
There is rubber sheet gasket, the protection cylinder is movably installed with position-limit mechanism away from both sides at the opening of push rod one end.
Preferably, the Ji Hui mechanisms include air bag, and the inside of the air bag is installed with support spring, the one of air bag
Side is communicated with the grey chamber of storage, and the grey chamber of storage is communicated with the ash inlet tube that one end connects with protection cylinder right side away from the side of air bag, and
Check valve one is installed with ash inlet tube, the opposite side of the air bag is communicated with the escaping pipe connected with protection cylinder left side,
Check valve two is installed with escaping pipe, the top movable of the air bag is provided with the extruding dress that one end is located at outside protection cylinder
Put.
Preferably, the pressurizing unit includes pressing plate, and the upper surface of the pressing plate is movably installed with top through protection cylinder
Depression bar, the top of depression bar is installed with to be installed between gland, and the lower surface and protection cylinder of gland and is fixed in
Reciprocal spring outside depression bar.
Preferably, the position-limit mechanism includes connecting rod, and the bottom of the connecting rod is movably installed with the interior lining panel of triangle, and
And interior lining panel and protection cylinder inwall between it is equidistant be installed with buffer spring, the connecting rod is fixed away from one end of interior lining panel
Draw ring is installed.
Compared with prior art, the beneficial effects of the utility model are as follows：
1st, the utility model is derived gas from escaping pipe using pressurizing unit extruding gasbag by arranging Ji Hui mechanisms,
Recycle the negative pressure that air bag is produced when recovering chalk dust to be imported in the grey chamber of storage by ash inlet tube, prevent chalk dust from affecting teachers and students
Health, and effectively solve the problems, such as that the chalk dust being scattered is difficult to clear up.
2nd, the utility model can preferably fix chalk by arranging clamping plate and fastening spring, while coordinating limit
Position mechanism, can manually pull draw ring to lift interior lining panel, and not only conveniently blocking chalk and also acting prevents chalk from rupturing
Effect, for shorter chalk also can be suitable for well, prevent chalk to be wasted.
Description of the drawings
Fig. 1 is the utility model structure front cross-sectional schematic diagram；
Fig. 2 is the utility model structure clamping plate front schematic view；
Fig. 3 is the utility model structure clamping plate side schematic view；
Fig. 4 is the utility model structure A-A partial schematic diagram；
Fig. 5 is the utility model structure B-B partial schematic diagram；
Fig. 6 is the utility model structure C-C partial schematic diagrams.
In figure：1 protection cylinder, 2 Ji Hui mechanisms, 21 air bags, 22 support springs, the grey chamber of 23 storages, 24 ash inlet tubes, 25 check valves
First, 26 escaping pipes, 27 check valves two, 28 pressurizing units, 281 pressing plates, 282 depression bars, 283 glands, 284 reciprocal springs, 3 push
Bar, 4 clamping plates, 5 fastening springs, 6 rubber sheet gaskets, 7 position-limit mechanisms, 71 connecting rods, 72 interior lining panels, 73 buffer springs, 74 draw rings.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Fig. 1,4 and 5, a kind of chalk sleeve for preventing chalk from rupturing, including protection cylinder 1 are referred to, in protecting the outer wall of cylinder 1
Sky, and protect the outer wall of the both sides of cylinder 1 to be installed with Ji Hui mechanisms 2, Ji Hui mechanisms 2 can produce chalk when writing
Chalk dust collected by extruding gasbag 21 in real time, Ji Hui mechanisms 2 include air bag 21, and the inside of air bag 21 fixedly mounts
Have a support spring 22, the side of air bag 21 is communicated with the grey chamber 23 of storage, the grey chamber 23 of storage away from the side of air bag 21 be communicated with one end with
The ash inlet tube 24 of protection cylinder 1 right side connection, and check valve 1 is installed with ash inlet tube 24, check valve 1 can be with
Chalk dust is set to enter but can not pour out, the opposite side of air bag 21 is communicated with the escaping pipe 26 connected with protection cylinder 1 left side, outlet
Check valve 2 27 is installed with pipe 26, check valve 2 27 derives can the gas of air bag 21, but is unable to air inlet, air bag 21
Top movable be provided with one end be located at protection cylinder 1 outside pressurizing unit 28, pressurizing unit 28 include pressing plate 281, pressing plate 281
Upper surface be movably installed with depression bar 282 of the top through protection cylinder 1, the top of depression bar 282 is installed with gland 283, presses
Lid 283 is arc, facilitates extruding to use, and is installed with and is fixed in pressure between the lower surface and protection cylinder 1 of gland 283
Reciprocal spring 284 outside bar 282, reciprocal spring 284 can recover gland 283 to original position, convenient operation next time.
Fig. 1,2,3 and 6 are referred to, the internal whorl for protecting cylinder 1 is connected with push rod 3, and push rod 3 is located at protection cylinder 1 one
The both sides up and down at end are hinged with the clamping plate 4 of arc, and by the elastic connection of fastening spring 5, hand between two clamping plates 4
Move and take out push rod 3 from protection cylinder 1, then clamping plate 4 is pulled open, chalk is put into into release clamping plate 4, the meeting of clamping plate 4 exists
Chalk is clamped in the presence of fastening spring 5, clamping plate 4 fixes peace and turns have rubber sheet gasket 6, rubber blanket with the junction of push rod 3
Piece 6 can play a part of to support buffering, protection cylinder 1 to be movably installed with away from both sides at the opening of the one end of push rod 3 spacing
Mechanism 7, position-limit mechanism 7 can be such that chalk more easily fixes, and pull draw ring 74 to make the spacing between interior lining panel 72 become big, prevent
There is blockage problem when sending at the protection opening of cylinder 1 in chalk, convenient use, position-limit mechanism 7 includes connecting rod 71, the bottom of connecting rod 71
End be movably installed between the interior lining panel 72 of triangle, and interior lining panel 72 and the protection inwall of cylinder 1 it is equidistant be installed with it is slow
Rush spring 73, buffer spring 73 can in real time ensure that interior lining panel 72 contacts with chalk, connecting rod 71 away from interior lining panel 72 one
End is installed with draw ring 74.
In sum, this prevents the chalk sleeve that chalk ruptures, and by arranging Ji Hui mechanisms 2, is extruded using pressurizing unit 28
Air bag 21 derives gas from escaping pipe 26, recycles the negative pressure that air bag 21 is produced when recovering to lead chalk dust by ash inlet tube 24
Enter in the grey chamber 23 of storage, prevent chalk dust from affecting the health of teachers and students, and effectively solve the chalk dust being scattered to be difficult to clear up
Problem；By arranging clamping plate 4 and fastening spring 5, chalk can be preferably fixed, while coordinate position-limit mechanism 7, can be with
Manually pull draw ring 74 to lift interior lining panel 72, not only conveniently block chalk and also act the effect for preventing chalk from rupturing,
For shorter chalk also can be suitable for well, chalk is prevented to be wasted.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out various changes in the case of without departing from principle of the present utility model and spirit, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of chalk sleeve for preventing chalk from rupturing, including protection cylinder (1), it is characterised in that：In the outer wall of protection cylinder (1)
Sky, and protect the outer wall of cylinder (1) both sides to be installed with Ji Hui mechanisms (2), the internal whorl connection of protection cylinder (1)
There is push rod (3), push rod (3) is hinged with the clamping plate (4) of arc positioned at the both sides up and down of protection cylinder (1) one end, and
By fastening spring (5) elastic connection between two clamping plates (4), the clamping plate (4) is fixed with the junction of push rod (3)
Peace turns have rubber sheet gasket (6), and protection cylinder (1) is movably installed with spacing away from both sides at the opening of push rod (3) one end
Mechanism (7).
2. it is according to claim 1 it is a kind of prevent chalk rupture chalk sleeve, it is characterised in that：The Ji Hui mechanisms (2)
Including air bag (21), the inside of the air bag (21) is installed with support spring (22), and the side of air bag (21) is communicated with storage
Grey chamber (23), the grey chamber (23) of storage is communicated with the ash inlet tube that one end connects with protection cylinder (1) right side away from the side of air bag (21)
(24) check valve one (25), and on ash inlet tube (24) is installed with, the opposite side of the air bag (21) is communicated with and protection
The escaping pipe (26) of cylinder (1) left side connection, is installed with check valve two (27) in escaping pipe (26), the air bag (21)
Top movable is provided with one end and is located at the outside pressurizing unit (28) of protection cylinder (1).
3. it is according to claim 2 it is a kind of prevent chalk rupture chalk sleeve, it is characterised in that：The pressurizing unit (28)
Including pressing plate (281), the upper surface of the pressing plate (281) is movably installed with depression bar (282) of the top through protection cylinder (1), pressure
The top of bar (282) is installed with gland (283), and gland (283) lower surface and protection cylinder (1) between fixedly mount
Have and be fixed in the outside reciprocal spring (284) of depression bar (282).
4. it is according to claim 1 it is a kind of prevent chalk rupture chalk sleeve, it is characterised in that：The position-limit mechanism (7)
Including connecting rod (71), the bottom of the connecting rod (71) is movably installed with the interior lining panel (72) of triangle, and interior lining panel (72) with
Equidistant between protection cylinder (1) inwall to be installed with buffer spring (73), the connecting rod (71) is away from the one of interior lining panel (72)
End is installed with draw ring (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620799422.4U CN206086076U (en) | 2016-07-27 | 2016-07-27 | Prevent cracked chalk cover of chalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620799422.4U CN206086076U (en) | 2016-07-27 | 2016-07-27 | Prevent cracked chalk cover of chalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206086076U true CN206086076U (en) | 2017-04-12 |
Family
ID=58467192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620799422.4U Expired - Fee Related CN206086076U (en) | 2016-07-27 | 2016-07-27 | Prevent cracked chalk cover of chalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206086076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109291694A (en) * | 2018-10-22 | 2019-02-01 | 重庆三峡学院 | A kind of chalk auxiliary writing device |
| CN110712454A (en) * | 2019-11-07 | 2020-01-21 | 南宁学院 | Pen hanger used at tail end of industrial robot |
-
2016
- 2016-07-27 CN CN201620799422.4U patent/CN206086076U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109291694A (en) * | 2018-10-22 | 2019-02-01 | 重庆三峡学院 | A kind of chalk auxiliary writing device |
| CN110712454A (en) * | 2019-11-07 | 2020-01-21 | 南宁学院 | Pen hanger used at tail end of industrial robot |
| CN110712454B (en) * | 2019-11-07 | 2021-04-16 | 南宁学院 | Pen hanger used at tail end of industrial robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170412 Termination date: 20190727 |