CN200954735Y - Pencil end eraser cover - Google Patents
Pencil end eraser cover Download PDFInfo
- Publication number
- CN200954735Y CN200954735Y CN 200620108845 CN200620108845U CN200954735Y CN 200954735 Y CN200954735 Y CN 200954735Y CN 200620108845 CN200620108845 CN 200620108845 CN 200620108845 U CN200620108845 U CN 200620108845U CN 200954735 Y CN200954735 Y CN 200954735Y
- Authority
- CN
- China
- Prior art keywords
- sleeve
- rubber
- screw
- pencil
- rotating cylinder
- 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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- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The utility model relates to a pencil-side rubber sleeve. The top of the rubber sleeve is provided with a protruding block and a screw matched to a screw hole at the center of the rubber sleeve. The screw is used to mount the rubber sleeve. The bottom of the sleeve is provided with a vertical protruding edge, which is used to closely connect with the top of a pencil shaft. A hollow rotary cylinder is covered on the top of the sleeve and occluded to the protruding block. The hollow rotary cylinder and the sleeve can rotate relatively, but can not be separated. The top of an inner cavity of the hollow rotary cylinder is provided with a vertical protruding edge occluded to the eraser. The eraser can slide up and down along the protruding edge vertically. A solution of a square column and a hollow rotary cylinder with an inner threaded cavity or a screw and a hollow rotary section with an inner threaded cavity can be used. The utility model has the beneficial effects: the bottom of the sleeve is closely connected with the top of the pencil shaft by means of the protruding edge or the screw, the remnant eraser in the hollow rotary cylinder can be extruded by the screw when the exposed eraser is used up and the hollow rotary cylinder is rotated, or a new eraser is convenient to be replaced.
Description
Technical field
The utility model relates to a kind of annex of pencil, particularly a kind of pencil termination rubber case.
Background technology
Existing pencil termination rubber case is the flake aluminum cylinder, and its outer rim is equipped with the fixedly shrinkage pool of rubber and pencil shaft, though difficult drop-off after the rubber tip that exposes uses up, can not be changed another new rubber tip, and that pencil shaft may also remain is more.
Summary of the invention
The purpose of this utility model provides a kind of pencil termination rubber case that is convenient for changing rubber tip.
The utility model is realized by following technical proposal: the screw rod that a kind of pencil termination rubber case, the top of its sleeve are provided with boss and match with the central screw of rubber; Hollow rotating cylinder be sleeved on sleeve the upper end and with the boss interlock, hollow rotating cylinder and sleeve can relatively rotate, but can not separate; The inner chamber top of hollow rotating cylinder is provided with cooperate with rubber vertical protruding stupefied, and rubber can be along vertical protruding stupefied slippage up and down.
Second kind of scheme is: the top of sleeve be provided with boss and match with the rubber centre bore, section is polygonal roofbolt, rubber can be along its up and down slippage; Hollow rotating cylinder be sleeved on sleeve the upper end and with the boss interlock, the inner chamber top of hollow rotating cylinder is provided with the screw thread with the threads engaged of rubber outer rim.
The third scheme is: the screw rod that the top of sleeve is provided with boss and matches with the central screw of rubber; Hollow rotating cylinder be sleeved on sleeve the upper end and with the boss interlock, the inner chamber top of hollow rotating cylinder is provided with the screw thread with the threads engaged of rubber outer rim.
The bottom of sleeve is provided with the protruding stupefied or screw thread that has salient point, is used for combining closely with the pencil shaft upper end.
The beneficial effects of the utility model are: the bottom of sleeve relies on the upper end protruding stupefied or screw thread and pencil shaft of band salient point to combine closely, after the rubber tip that exposes uses up, hand-held pencil shaft, rotate hollow rotating cylinder, the residue rubber tip that is positioned at it will be extruded by screw thread, is convenient to change another new rubber tip.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the B-B profile of Fig. 1.
Fig. 4 is the sleeve schematic appearance.
Fig. 5 is the structural representation of embodiment 2.
Fig. 6 is the C-C profile of Fig. 5.
Fig. 7 is the structural representation of embodiment 3.
Fig. 8 is the D-D profile of Fig. 7.
The specific embodiment
Claims (4)
1. pencil termination rubber case comprises that top lays rubber (1), and the bottom is inserted into the sleeve (3) of pencil shaft (4) upper end, it is characterized in that: the screw rod (8) that the top of sleeve (3) is provided with boss (6) and matches with the central screw of rubber (1); Hollow rotating cylinder (2) be sleeved on sleeve (3) the upper end and with boss (6) interlock, the inner chamber top of hollow rotating cylinder (2) is provided with vertical protruding stupefied (7) that cooperate with rubber (1).
2. pencil according to claim 1 termination rubber case is characterized in that: the top of described sleeve (3) be provided with boss (6) and match with rubber (1) centre bore, section is polygonal roofbolt (10); Hollow rotating cylinder (2) be sleeved on sleeve (3) the upper end and with boss (6) interlock, the inner chamber top of hollow rotating cylinder (2) is provided with the screw thread (9) with the threads engaged of rubber (1) outer rim.
3. pencil according to claim 1 termination rubber case is characterized in that: the screw rod (8) that the top of described sleeve (3) is provided with boss (6) and matches with the central screw of rubber (1); Hollow rotating cylinder (2) be sleeved on sleeve (3) the upper end and with boss (6) interlock, the inner chamber top of hollow rotating cylinder (2) is provided with the screw thread (9) with the threads engaged of rubber (1) outer rim.
4. according to claim 1 or 2 or 3 described pencil termination rubber cases, it is characterized in that: the bottom of sleeve (3) is provided with protruding stupefied (5) or the screw thread (11) that has salient point.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200620108845 CN200954735Y (en) | 2006-10-19 | 2006-10-19 | Pencil end eraser cover |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200620108845 CN200954735Y (en) | 2006-10-19 | 2006-10-19 | Pencil end eraser cover |
Publications (1)
Publication Number | Publication Date |
---|---|
CN200954735Y true CN200954735Y (en) | 2007-10-03 |
Family
ID=38773317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200620108845 Expired - Fee Related CN200954735Y (en) | 2006-10-19 | 2006-10-19 | Pencil end eraser cover |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN200954735Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109899348A (en) * | 2019-03-11 | 2019-06-18 | 张琳函 | A kind of removable erasing rubber connector being applicable in more specification pencils end |
-
2006
- 2006-10-19 CN CN 200620108845 patent/CN200954735Y/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109899348A (en) * | 2019-03-11 | 2019-06-18 | 张琳函 | A kind of removable erasing rubber connector being applicable in more specification pencils end |
CN109899348B (en) * | 2019-03-11 | 2020-07-24 | 张琳函 | Detachable eraser connector suitable for ends of pencils of various specifications |
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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: 20071003 Termination date: 20091119 |