CN201703138U - Spiral eraser - Google Patents
Spiral eraser Download PDFInfo
- Publication number
- CN201703138U CN201703138U CN2010202463594U CN201020246359U CN201703138U CN 201703138 U CN201703138 U CN 201703138U CN 2010202463594 U CN2010202463594 U CN 2010202463594U CN 201020246359 U CN201020246359 U CN 201020246359U CN 201703138 U CN201703138 U CN 201703138U
- Authority
- CN
- China
- Prior art keywords
- vertical bar
- spiral
- eraser
- screw rod
- erasing rubber
- 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
Links
Images
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
A spiral eraser capable of preventing an eraser body from being dirty and avoiding waste comprises an eraser casing. A rotary base is connected to the lower end of the eraser casing and relatively rotatably connected with the eraser casing; a screw rod is fixedly connected to the middle of the upper surface of the rotary base and positioned inside the eraser casing; vertical bar projections are designed on the inner surface of the eraser casing; a spiral seat is mounted inside the eraser casing and connected onto the screw rod in a sleeved manner; the spiral seat is connected with the screw rod in a threaded manner; vertical bar grooves designed on the outer surface of the spiral seat correspond to the vertical bar projections; rubber is fixedly connected to the upper surface of the spiral seat; and vertical bar grooves are also designed on the rubber and correspond to the vertical bar projections.
Description
Technical field
The utility model relates to a kind of study article, relates in particular to a kind of spiral erasing rubber.
Background technology
At present the rubber that uses all includes only the rubber body, and during use, the rubber body is dirty easily, and the rubber body can't continue to use when using a last remaining fritter, causes waste.
Summary of the invention
The purpose of this utility model provides a kind ofly can avoid the spiral erasing rubber that the rubber body is dirty, can avoid waste.
For achieving the above object, the technical solution adopted in the utility model is: a kind of spiral erasing rubber, comprise the erasing rubber shell, it is characterized in that: erasing rubber shell lower end is connected with rotating base, rotating base is relative with the erasing rubber shell to be rotatably connected, the middle part of the upper surface of rotating base is fixedly connected with screw rod, screw rod is positioned at the erasing rubber shell, the inner surface design of erasing rubber shell has the vertical bar projection, in the erasing rubber shell spiral base is housed, spiral base is socketed on the screw rod, and spiral base is connected with screw flight, and the outer surface design of spiral base has the vertical bar groove, the vertical bar groove is corresponding with the vertical bar projection, the spiral base upper surface is fixedly connected with rubber, and also designing on the rubber has the vertical bar groove, and the vertical bar groove is corresponding with the vertical bar projection.
The beneficial effects of the utility model: because this structure of the present utility model,, avoid causing waste so when using the utility model, can avoid the rubber body dirty, and rubber thoroughly can be used.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
In the accompanying drawing: 1, rotating base; 2, spiral base; 3, screw rod; 4, rubber; 5, erasing rubber shell;
6, vertical bar projection
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
The utility model as shown in Figure 1, a kind of spiral erasing rubber, comprise erasing rubber shell 5, erasing rubber shell 5 lower ends are connected with rotating base 1, rotating base 1 and erasing rubber shell 5 relative being rotatably connected, the middle part of the upper surface of rotating base 1 is fixedly connected with screw rod 3, screw rod 3 is positioned at erasing rubber shell 5, the inner surface design of erasing rubber shell 5 has vertical bar projection 6, spiral base 2 is housed in the erasing rubber shell 5, spiral base 2 is socketed on the screw rod 3, and spiral base 2 is threaded with screw rod 3, and the outer surface design of spiral base 2 has the vertical bar groove, the vertical bar groove is corresponding with vertical bar projection 6, spiral base 2 upper surfaces are fixedly connected with rubber 4, and also designing on the rubber 4 has the vertical bar groove, and the vertical bar groove is corresponding with vertical bar projection 6.
When using the utility model, grasp erasing rubber shell 5, rotating base 1 then, and rubber can move up, and so promptly can use.
Claims (1)
1. spiral erasing rubber, comprise erasing rubber shell (5), it is characterized in that: erasing rubber shell (5) lower end is connected with rotating base (1), rotating base (1) and relative being rotatably connected of erasing rubber shell (5), the middle part of the upper surface of rotating base (1) is fixedly connected with screw rod (3), screw rod (3) is positioned at erasing rubber shell (5), the inner surface design of erasing rubber shell (5) has vertical bar projection (6), spiral base (2) is housed in the erasing rubber shell (5), spiral base (2) is socketed on the screw rod (3), spiral base (2) is threaded with screw rod (3), the outer surface design of spiral base (2) has the vertical bar groove, and the vertical bar groove is corresponding with vertical bar projection (6), and spiral base (2) upper surface is fixedly connected with rubber (4), also designing on the rubber (4) has the vertical bar groove, and the vertical bar groove is corresponding with vertical bar projection (6).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010202463594U CN201703138U (en) | 2010-06-22 | 2010-06-22 | Spiral eraser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010202463594U CN201703138U (en) | 2010-06-22 | 2010-06-22 | Spiral eraser |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201703138U true CN201703138U (en) | 2011-01-12 |
Family
ID=43440289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010202463594U Expired - Fee Related CN201703138U (en) | 2010-06-22 | 2010-06-22 | Spiral eraser |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201703138U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI711548B (en) * | 2020-03-13 | 2020-12-01 | 錢燕燕 | Eraser structure |
-
2010
- 2010-06-22 CN CN2010202463594U patent/CN201703138U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI711548B (en) * | 2020-03-13 | 2020-12-01 | 錢燕燕 | Eraser structure |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20110622 |