CN201362073Y - Rotatable and retractable pencil - Google Patents

Rotatable and retractable pencil Download PDF

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Publication number
CN201362073Y
CN201362073Y CNU2008202148037U CN200820214803U CN201362073Y CN 201362073 Y CN201362073 Y CN 201362073Y CN U2008202148037 U CNU2008202148037 U CN U2008202148037U CN 200820214803 U CN200820214803 U CN 200820214803U CN 201362073 Y CN201362073 Y CN 201362073Y
Authority
CN
China
Prior art keywords
pencil
pen core
penholder
screw thread
lead
Prior art date
Application number
CNU2008202148037U
Other languages
Chinese (zh)
Inventor
黄笑语
Original Assignee
黄笑语
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 黄笑语 filed Critical 黄笑语
Priority to CNU2008202148037U priority Critical patent/CN201362073Y/en
Application granted granted Critical
Publication of CN201362073Y publication Critical patent/CN201362073Y/en

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Abstract

The utility model relates to a rotatable and retractable pencil, which comprises a pencil head, a pencil shaft, a pencil lead base and a pencil lead. The pencil lead is of a polygonal pencil lead or an elliptic pencil lead, an external screw thread and a pencil shrinkage pool are arranged on the pencil lead base, an internal screw thread corresponding to the external screw thread arranged on the pencil lead base is arranged on the pencil shaft, and a pencil head hole is arranged on the front end of the pencil head; the rear end of the pencil head is sleeved on the front end of the pencil shaft and is provided with a rotating device, the rear end of the pencil lead is inserted into the pencil lead shrinkage pool arranged on the pencil lead base, the pencil lead shrinkage pool and the pencil head hole are the same with the section of the pencil lead in shape, the pencil lead base is screwed on the internal screw thread arranged on the pencil shaft through the external screw thread, and the front end of pencil extends out of the pencil head from the pencil head hole. The rotatable and retractable pencil has the advantages of simple and reasonable structure, convenient use, no cut, safety and economy, can be reused by replacing the long pencil leads with different hardness and the pencil lead base, and is easy to be produced and popularized.

Description

The rotary and telescopic pencil
Technical field:
The utility model relates to a kind of pencil, and particularly a kind of rotary and telescopic pencil used in everyday belongs to a kind of writing implement.
Background technology:
Pencil has writing the back and can be easy to wrong part wiped with rubber and advantage such as write again, so be one of the most frequently used writing implement, present pencil is still based on Wood pencil, could use after need pen core being cut out with cutter during use, after using up, nib all needs to sharpen a pencil again again at every turn, waste time and energy, uneconomical environmental protection, also dangerous.The pencil of existing a kind of extensible pencil such as bullet hair style structure, mainly be in penholder, to be serially connected with the blocking pen core that several are made up of short pen core and pen core seat as the bullet hair style, when the pen core of penholder front end uses up, in can packing this pen core into penholder from the taking-up of penholder front end and from the penholder rear end, can successively the pen core in the penholder be shifted onto the penholder front end uses, use more convenient, but because pen core is very short, service time is also short, need purchase a large amount of pen cores, and fixedly the pen core seat of pen core also first use value after pen core uses up can cause new waste again, also has weak points such as complex structure simultaneously.
Summary of the invention:
The purpose of this utility model is in order to overcome the weak point of above-mentioned extensible pencil, designs a kind of simple and reasonable, easy to use, without cutting, safety economy, can change the different long pen core of soft or hard intensity and the pen core seat can reusable rotary and telescopic pencil.
Rotary and telescopic pencil of the present utility model, mainly comprise nib, penholder, pen core seat and pen core, described pen core is polygon pen core or oval pen core, the pen core seat is provided with external screw thread and pen core shrinkage pool, penholder is provided with and the corresponding internal thread of pen core seat external screw thread, the nib front end is provided with written hole, the nib rear end is sleeved on the penholder front end and is provided with tumbler, the pen core rear end is inserted in the pen core shrinkage pool of pen core seat, the pen core shrinkage pool is identical with written Kong Junyu pen core cross sectional shape, the pen core seat is contained in through external thread rotary on the internal thread of penholder, and the front end of pen core stretches out nib from written hole.
Described tumbler comprises a circle convex tendon and a circle groove, and convex tendon wherein is located on the outer wall of penholder front end, and groove is located on the inwall of written rear end.
Described polygon pen core is selected triangle, quadrangle, pentagon, hexagon or octagon for use.
Rotary and telescopic pencil of the present utility model; owing to use polygon pen core or oval pen core; as long as rotation nib; be rotatable pen core and pen core seat; by the rotation of the external screw thread on the pen core seat on the penholder internal thread pen core seat is moved up and down in penholder; thereby pen core is gone back from moving stretching motion when being rotated, pen core is stretched out nib can write, will can shield in the pen core withdrawal nib at ordinary times.When pen core by with being short to can not stretch out nib the time, short pen core can be taken out from the pen core shrinkage pool of pen core seat and change long pen core and can continue to use.Have simple and reasonable, easy to use, without cutting, safety economy, can change the different long pen core of soft or hard intensity and pen core seat and advantage such as can reuse, only need to change supporting pen core seat and nib and can use difform pen core, the different pen core of all configurable soft or hard degree of the pen core of different shape, be easy to satisfy different user demands, be easy to produce and promote.
Description of drawings
Accompanying drawing is a kind of structural representation among the embodiment of the present utility model.
The specific embodiment
Referring to accompanying drawing, among the figure 1 is cap, the 2nd, the pen core seat, the 3rd, external screw thread, the 4th, the pen core shrinkage pool, the 5th, penholder, the 6th, internal thread, the 7th, pen core, the 8th, tumbler, the 9th, nib, the 10th, written hole, rotary and telescopic pencil of the present utility model, its structure mainly comprise nib 9, penholder 5, pen core seat 2 and pen core 7, described pen core 7 is polygon pen core or oval pen core, pen core seat 2 is provided with external screw thread 3 and pen core shrinkage pool 4, penholder 5 is provided with and pen core seat external screw thread 3 corresponding internal threads 6, and written 9 front ends are provided with written hole 10, and written rear end is sleeved on the penholder front end and is provided with tumbler 8, pen core 7 rear ends are inserted in the pen core shrinkage pool 4 of pen core seat, all the cross sectional shape with pen core 7 is identical with written hole 10 for pen core shrinkage pool 4, and pen core seat 2 is on the internal thread 6 of external screw thread 3 spinnings at penholder 5, and the front end of pen core 7 stretches out nib 9 from written hole 10.
Described tumbler 8 comprises a circle convex tendon and a circle groove, and convex tendon wherein is located on the outer wall of penholder front end, and groove is located on the inwall of written rear end.In order to prevent that dust from entering, can cap 1 be housed in the upper end of penholder 5, also can have additional hook on the cap 1.
Described pen core 7 is polygon pen core or oval pen core, the cross section of polygon pen core wherein can be selected triangle, quadrangle, pentagon, hexagon or octagon for use, be beneficial to nib and drive the pen core rotation, only need to change supporting pen core seat and nib and can use difform pen core, the different pen core of all configurable soft or hard degree of the pen core of different shape, be easy to satisfy different user demands, be easy to produce and promote.

Claims (3)

1, a kind of rotary and telescopic pencil, comprise nib, penholder, pen core seat and pen core, it is characterized in that described pen core is polygon pen core or oval pen core, the pen core seat is provided with external screw thread and pen core shrinkage pool, penholder is provided with and the corresponding internal thread of pen core seat external screw thread, the nib front end is provided with written hole, the nib rear end is sleeved on the penholder front end and is provided with tumbler, the pen core rear end is inserted in the pen core shrinkage pool of pen core seat, the pen core shrinkage pool is identical with written Kong Junyu pen core cross sectional shape, the pen core seat is contained in through external thread rotary on the internal thread of penholder, and the front end of pen core stretches out nib from written hole.
2, rotary and telescopic pencil as claimed in claim 1 is characterized in that described tumbler comprises a circle convex tendon and a circle groove, and convex tendon wherein is located on the outer wall of penholder front end, and groove is located on the inwall of written rear end.
3, rotary and telescopic pencil as claimed in claim 1 or 2 is characterized in that described polygon pen core selects triangle, quadrangle, pentagon, hexagon or octagon for use.
CNU2008202148037U 2008-12-16 2008-12-16 Rotatable and retractable pencil CN201362073Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008202148037U CN201362073Y (en) 2008-12-16 2008-12-16 Rotatable and retractable pencil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008202148037U CN201362073Y (en) 2008-12-16 2008-12-16 Rotatable and retractable pencil

Publications (1)

Publication Number Publication Date
CN201362073Y true CN201362073Y (en) 2009-12-16

Family

ID=41472734

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008202148037U CN201362073Y (en) 2008-12-16 2008-12-16 Rotatable and retractable pencil

Country Status (1)

Country Link
CN (1) CN201362073Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102689546A (en) * 2012-06-25 2012-09-26 上海大华文具体育用品厂有限公司 Large-caliber automatic core pencil
CN104669834A (en) * 2013-11-30 2015-06-03 武汉蜀泰科技有限公司 Rotary drawing device
CN104859340A (en) * 2015-05-06 2015-08-26 张素平 Full automatic pencil

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102689546A (en) * 2012-06-25 2012-09-26 上海大华文具体育用品厂有限公司 Large-caliber automatic core pencil
CN104669834A (en) * 2013-11-30 2015-06-03 武汉蜀泰科技有限公司 Rotary drawing device
CN104859340A (en) * 2015-05-06 2015-08-26 张素平 Full automatic pencil

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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: 20091216

Termination date: 20101216