CN2799266Y

CN2799266Y - Pencil

Info

Publication number: CN2799266Y
Application number: CN 200520101442
Authority: CN
Inventors: 陈国武
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-06
Filing date: 2005-04-06
Publication date: 2006-07-26
Anticipated expiration: 2015-04-06

Abstract

The utility model discloses a pencil which is characterized in that the pencil is mainly comprises a fixed screw thread block, a pencil shell and a plurality of pencil heads (3). The pencil head (3) is composed of a hollow pencil tube and a sheet-shaped pencil core (4) and is divided into two layers, wherein the upper layer is a hollow plastic tube, and the lower layer is the sheet-shaped pencil core (4). The pencil core (4) is embedded in a plastic block which is arranged at the lower part of the plastic tube. When the two pencil heads are overlapped together, the pencil core (4) is just arranged in a middle hole of the plastic tube of the next pencil head. A pencil cap (5) is also provided with an eraser (6) which is sheathed on the pencil cap by a metal skin (7). When the pencil with the structure is used, if the pencil core is used up, a good pencil core can be replaced by rotating the fixed screw thread block (1) which is arranged at the upper end of the pencil shell, and the pencil core which is used out just needs to be placed on the pencil. The utility model is convenient in use, and the use and manufacture cost are both low.

Description

Pencil

Technical field

The utility model relates to a kind of pencil, particularly a kind of pencil of full-filling answering card.

Background technology

Pencil of the prior art generally is clipped in the wooden material by the column type pen core to be formed, and the wood of will pruning in the time of use is whittled into sheet to the column type pen core, uses inconvenient.Also have a kind of propelling pencil, mainly be made up of the shaft of a writing brush and pen core, it is circular that the end of the shaft of a writing brush is punctured into point, the center of shaft of a writing brush end is provided with circle and leads plumbous mouthful, and pen core is arranged in the shaft of a writing brush, and the end of pen core is provided with lead for retractable pencil, lead for retractable pencil with lead plumbous mouthful and match, be socketed with a spring on the pen core, both ends of the spring is conflicted respectively on pen core and shaft of a writing brush inwall, the pen core inner hollow, the pen core end is provided with collet, collet links to each other with the pen core hollow space, presses bar before the root of the shaft of a writing brush is provided with, during use, in pen core, place lead for retractable pencil, press bar before pressing, promote collet and open, lead for retractable pencil is travelled forward, press bar before unclamping, collet compresses lead for retractable pencil, and propelling pencil just can have been write, when lead for retractable pencil in short-term, press bar before pressing once more, lead for retractable pencil travels forward once more, presses bar before unclamping, and collet compresses lead for retractable pencil.Its weak point is: this pencil is not suitable for the answering card of full-filling rectangle because pen core is a point, in addition owing to adopted complicated structure to make manufacturing cost also than higher.Chinese patent CN200420025554.9Y discloses a kind of pencil, adopt the pushing ram structure and adopted the rectangle lead for retractable pencil suitable with answering card, made things convenient for full-filling, but this pencil manufacturing cost height, and buy pen and the time will buy pen core in addition, and a general examination does not need so many pen core, the rectangle lead for retractable pencil can not be used for writing, examination is over and just is out of use, and causes waste, makes the cost that uses than higher.

The utility model content

The purpose of this utility model is to overcome uses inconvenience in the prior art, the shortcoming that manufacturing cost is high provides a kind of convenient use, the pencil that cost is low.

Pencil of the present utility model mainly is made up of retaining thread piece, a shell and several nibs, nib is made up of the pen core of the hollow shaft of a writing brush and sheet, be divided into 2 layers, the upper strata is hollow plastic tube, lower floor is the pen core of sheet, pen core is embedded in the unit of plastic of plastic tube bottom, and when two nibs stacked, pen core was just in the hole of the written plastic tube of next one centre.

Written number of the present utility model is generally 3～8, and general needs 3～4 nibs just can deal with whole examination in the examination of college entrance examination and other full-filling answering card.

As a kind of improvement of the present utility model, can on the cap for brush, also be provided with erasing rubber, be enclosed within on the cap for brush by metal skin.

Use the pencil of the utility model structure, non-sharpenning pencil in examination, if pen core has been used up, a screw thread fixed block of shell upper end of outwarding winding is changed a good pen core, the pen core that uses up is placed on top just passable, easy to use.Only need buy one-pen when buying and need not buy pen core in addition, lack the structure of push-down in addition, the cost of manufacturing is reduced, reduce use cost.

Description of drawings

Fig. 1 is the structural representation of the utility model pencil.

Fig. 2 is the structural representation of the utility model pencil nib.

Fig. 3 is the structural representation of the utility model pencil cap for brush.

Among the figure: 1. screw thread fixed block; 2. a shell; 3. written; 4. pen core; 5. the cap for brush; 6. erasing rubber; 7. metal skin.

The specific embodiment

Pencil of the present utility model mainly is made up of screw thread fixed block 1, a shell 2 and nib 3, nib 3 is made up of the pen core 4 of the hollow shaft of a writing brush and sheet, be divided into 2 layers, the upper strata is hollow plastic tube, lower floor is the pen core 4 of sheet, pen core 4 is embedded in the unit of plastic of plastic tube bottom, and when two nibs stacked, pen core was just in the hole of the written plastic tube of next one centre.

On the cap for brush 5, also be provided with erasing rubber 6, be enclosed within on the cap for brush by metal skin 7.

Use the pencil of the utility model structure, non-sharpenning pencil in examination, if pen core has been used up, a screw thread fixed block 1 of shell upper end of outwarding winding is changed a good pen core, the pen core that uses up is placed on top just passable, easy to use.Only need buy one-pen when buying and need not buy pen core in addition, lack the structure of push-down in addition, the cost of manufacturing is reduced, reduce use cost.

Claims

1. pencil, it is characterized in that: mainly form by retaining thread piece (1), a shell (2) and several nibs, nib is made up of the pen core of the hollow shaft of a writing brush and sheet, be divided into 2 layers, the upper strata is hollow plastic tube, and lower floor is the pen core of sheet, and pen core is embedded in the unit of plastic of plastic tube bottom, when two nibs stacked, pen core was just in the hole of the written plastic tube of next one centre.

2. pencil according to claim 1 is characterized in that: the number of contained nib is 3～8.

3. according to claim 1 or 2 described pencils, it is characterized in that: the number of contained nib is 3～4.

4. according to any one described pencil of claim 1 to 3, it is characterized in that: on the cap for brush, also be provided with erasing rubber, be enclosed within on the cap for brush by metal skin.