CN208558795U - A kind of automatic eraser - Google Patents
A kind of automatic eraser Download PDFInfo
- Publication number
- CN208558795U CN208558795U CN201820668023.3U CN201820668023U CN208558795U CN 208558795 U CN208558795 U CN 208558795U CN 201820668023 U CN201820668023 U CN 201820668023U CN 208558795 U CN208558795 U CN 208558795U
- Authority
- CN
- China
- Prior art keywords
- rubber
- housing
- guide
- thread
- guide protrusions
- 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 kind of automatic eraser, outer wall of inside race has guide protrusions, and outer casing inner wall has guide thread, and guide thread and guide protrusions screw cooperation, and rubber protrudes into housing inner cavity and is installed in inner sleeve in bottom；Raised lock ring at the top of inner sleeve, rubber bottom have recess portion, and raised lock ring is locked to the recess portion；Guide protrusions are screw thread segmental arc；Lock ring bottom is provided with block circle；Gilled rings is arranged in housing guide thread bottom, and gilled rings fits in lining the outer surface of, and gilled rings axially opens up longitudinal slot along housing；It is wholely set with pencil; rotating jacket or pencil when use; guide protrusions and guide thread screw the lifting for realizing housing; compared with the rubber for being fixed on a tail; rubber can avoid rubber and destroyed in the case where no outer protection using being convenient to expose longer length after abrasion to supplement, and it is convenient to hold; also it can avoid the individually placed problem easy to be lost of rubber, gilled rings can reduce the friction between inner and outer ring.
Description
Technical field
The utility model belongs to schooling apparatus field more particularly to a kind of automatic eraser.
Background technique
Erasing rubber can wipe the trace of pencil, be office and a kind of common stationery of study, writing, painting out
It, can be using erasing rubber come by the handwriting erasing of mistake, still, existing erasing rubber is easy external without guarantor when existing mistake
Shield, is easily damaged, and it is also inconvenient to hold and save, and is easily lost.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of automatic eraser.
The utility model is realized in this way a kind of automatic eraser includes:
Inner sleeve, the outer wall of inside race have guide protrusions；
Housing, the outer casing inner wall have guide thread, and guide thread and guide protrusions screw cooperation；
Rubber, the rubber protrude into housing inner cavity and are installed in inner sleeve in bottom.
Further, raised lock ring at the top of the inner sleeve, rubber bottom have recess portion, and raised lock ring is locked to this
Recess portion.
Further, the guide protrusions are screw thread segmental arc.
Further, the lock ring bottom is provided with block circle.
Further, gilled rings is set in the guide thread bottom of housing, which fits in lining the outer surface of, gilled rings and housing
Non-threaded section of inner wall axially offers the longitudinal slot passed through for guide protrusions along housing.
Further, it is provided with throat structure at the top of housing, which fits in rubber outer surface.
Further, screw thread segmental arc is along circumferential at least two sections of the setting of outer wall of inside race.
The automatic eraser of the utility model, is wholely set with pencil, rotating jacket or pencil, guide protrusions when use
The lifting for realizing housing is screwed with guide thread, compared with the rubber for being fixed on a tail, rubber after abrasion using being convenient to reveal
Longer length can avoid rubber and destroyed in the case where no outer protection out to supplement, and it is convenient to hold, and also can avoid
The individually placed problem easy to be lost of rubber, gilled rings can reduce the friction between inner and outer ring.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of automatic eraser provided by the embodiment of the utility model；
Fig. 2 is the layout drawing of longitudinal slot provided by the embodiment of the utility model；
In figure: 1, rubber；2, housing；3, guide thread；4, gilled rings；5, pencil；6, inner sleeve；7, block circle；8, lock ring；9,
Guide protrusions；10, longitudinal slot；11, throat structure.
Specific embodiment
For the utility model content, feature and effect that can further appreciate that the utility model, the following examples are hereby given, and
It is described in detail with the accompanying drawings as follows.
The structure of the utility model is explained in detail with reference to the accompanying drawing.
A kind of automatic eraser, comprising:
Inner sleeve 6,6 outer wall of inner sleeve have guide protrusions 9, which is set as screw thread segmental arc, 5 adapter sleeve of pencil
Loaded on 6 inside of inner sleeve, pencil 5 and inner sleeve 6 can be used the modes such as bonding and be fastenedly connected；
Rubber 1, the rubber 1 protrude into 2 inner cavity of housing and are installed in inner sleeve 6 in bottom, the 6 raised lock ring 8 in top of inner sleeve,
1 bottom of rubber has recess portion, and raised lock ring 8 is locked to the recess portion；
Housing 2,2 inner wall of housing have guide thread 3, and the screw thread segmental arc of guide thread 3 and guide protrusions 9, which screws, matches
It closes, 2 relative rotation of inner sleeve 6 and housing, housing 2 is with respect to 5 raising and lowering of pencil so that rubber 1 exposes different length, housing 2
3 bottom of guide thread be arranged gilled rings 4, gilled rings 4 fits in 6 outer surface of inner sleeve, to guarantee that housing 2 is fastenedly connected with inner sleeve 6,
In the present embodiment, it is provided with three circle gilled rings, non-threaded section of gilled rings 4 and housing 2 offers for guide protrusions 9 along housing 2 is axial
When the longitudinal slot 10 passed through such as the maximum outer profile size of guide protrusions 9 is 5mm, the width of the longitudinal slot 10 is at least 5mm, with
Guarantee that guide protrusions 9 can pass through gilled rings 4 when housing 2 is set in inner sleeve 6, screw thread segmental arc is circumferentially at least set along 6 outer wall of inner sleeve
Two sections are set to guarantee the firm connection of housing 2 and inner sleeve 6；
Be additionally provided with block circle 7 in 8 bottom of lock ring, 7 block of block circle in 5 top of pencil, with guarantee rubber 1 wiping by
Pressure makes pencil 5 that axial float not occur；
Throat structure 11 is provided at the top of housing 2, which fits in 1 outer surface of rubber, to guarantee
Rubber 1 does not have larger shaking when wiping.
The automatic eraser of the utility model, is wholely set with pencil, rotating jacket or pencil, guide protrusions when use
The lifting for realizing housing is screwed with guide thread, compared with the rubber for being fixed on a tail, rubber after abrasion using being convenient to reveal
Longer length can avoid rubber and destroyed in the case where no outer protection out to supplement, and it is convenient to hold, and also can avoid
The individually placed problem easy to be lost of rubber, gilled rings can reduce the friction between inner and outer ring.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model
Limitation, it is all according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, is all within the scope of the technical scheme of the utility model.
Claims (7)
1. a kind of automatic eraser, which is characterized in that the automatic eraser includes:
Inner sleeve, the outer wall of inside race have guide protrusions；
Housing, the outer casing inner wall have guide thread, and guide thread and guide protrusions screw cooperation；
Rubber, the rubber protrude into housing inner cavity and are installed in inner sleeve in bottom.
2. automatic eraser as described in claim 1, which is characterized in that raised lock ring at the top of inner sleeve, rubber bottom tool
There is recess portion, raised lock ring is locked to the recess portion.
3. automatic eraser as described in claim 1, which is characterized in that guide protrusions are screw thread segmental arc.
4. automatic eraser as claimed in claim 2, which is characterized in that lock ring bottom is provided with block circle.
5. automatic eraser as claimed in claim 3, which is characterized in that gilled rings, the rib is arranged in the guide thread bottom of housing
Ring fits in lining the outer surface of, and gilled rings and non-threaded section of outer casing inner wall axially offer the longitudinal direction passed through for guide protrusions along housing
Slot.
6. automatic eraser as described in claim 1, which is characterized in that be provided with throat structure at the top of housing, the throat structure
Inner surface fits in rubber outer surface.
7. automatic eraser as claimed in claim 3, which is characterized in that screw thread segmental arc is along the circumferential at least setting two of outer wall of inside race
Section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820668023.3U CN208558795U (en) | 2018-05-03 | 2018-05-03 | A kind of automatic eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820668023.3U CN208558795U (en) | 2018-05-03 | 2018-05-03 | A kind of automatic eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208558795U true CN208558795U (en) | 2019-03-01 |
Family
ID=65481104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820668023.3U Expired - Fee Related CN208558795U (en) | 2018-05-03 | 2018-05-03 | A kind of automatic eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208558795U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111976347A (en) * | 2020-09-25 | 2020-11-24 | 冯文达 | Eraser |
| CN114568413A (en) * | 2020-12-02 | 2022-06-03 | 广西师范大学 | Novel insect catching net |
-
2018
- 2018-05-03 CN CN201820668023.3U patent/CN208558795U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111976347A (en) * | 2020-09-25 | 2020-11-24 | 冯文达 | Eraser |
| CN114568413A (en) * | 2020-12-02 | 2022-06-03 | 广西师范大学 | Novel insect catching net |
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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 |
Granted publication date: 20190301 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |