CN104626797A

CN104626797A - Pen

Info

Publication number: CN104626797A
Application number: CN201510060888.2A
Authority: CN
Inventors: 余成鹏
Original assignee: 余成鹏
Current assignee: Guo Xiangcheng
Priority date: 2015-02-06
Filing date: 2015-02-06
Publication date: 2015-05-20
Anticipated expiration: 2035-02-06
Also published as: CN104626797B

Abstract

The invention relates to a pen which comprises an upper hollow pen rod, a lower hollow pen rod and a pen core. The pen core is arranged in the upper hollow pen rod and the lower hollow pen rod. A fastener used for fixing the pen core is further fixed to the top of the inner side of the upper pen rod. The upper portion of the pen core is fixed in the fastener. A limit groove is formed in the outer wall of the upper portion of the lower pen rod. An annular flange is arranged on the inner wall of the lower portion of the upper pen rod. The lower portion of the upper pen rod is connected to the outer wall of the upper portion of the lower pen rod in a sleeving mode, and the annular flange can slide up and down in the limit groove. A clamping ring used for making friction contact with the pen core is further arranged on the inner side of the lower pen rod. The pen is simple and novel in structure and convenient to carry, the length of the whole pen is changed in the mode that the upper pen rod and the lower pen rod are connected and matched in a sleeved mode, and the upper pen rod and the lower pen rod can be connected in a mode of sliding within a certain range, and therefore a pen tip in the pen core is exposed or hidden.

Description

A kind of pen

Technical field

The present invention relates to a kind of pen.

Background technology

Disclosed about in the prior art of pen in the market, generally comprise penholder, pen core and establish the cap for brush and do not establish two kinds of the cap for brush.Not establishing the pen of cap for brush major part to press pressure device by arranging at penholder afterbody, realizing pen core in the conversion using and do not use two states by coordinating spring or rotating upper lower pen rod by dislocation.Be positioned at the pen core of the hollow inner side of upper penholder and lower pen rod in order to fixing pen core, upper penholder inside top generally has the securing member for fixing pen core, and pen core top is fixing in the fasteners; And be adopt screw thread socket to realize between upper penholder and lower pen rod.General pen is also furnished with the cap for brush, to realize blocking protection when not using to pen core nib.

Summary of the invention

Goal of the invention of the present invention is to provide a kind of pen not establishing the cap for brush or spring structure, and in use, still can realize making the head of pen core expose for writing, when not using, the head of pen core is hidden and is convenient for carrying this pen.

In order to realize foregoing invention object, present invention employs following technical scheme:

A kind of pen, comprises the upper penholder of hollow, the lower pen rod of hollow and pen core; Pen core is positioned at the hollow inner side of penholder and lower pen rod, and upper penholder inside top is also fixed with the securing member for fixing pen core, and pen core top is fixing in the fasteners; The outer wall on lower pen rod top is provided with limited impression, and the inwall of the bottom of upper penholder is provided with collar flange, and the bottom of upper penholder is socketed on the outer wall on lower pen rod top, and collar flange is positioned at limited impression can slide up and down; Also be provided with inside described lower pen rod for the snap ring with described pen core CONTACT WITH FRICTION.

As preferably, be provided with a loop teat in described limited impression, the radial height of ring-type teat is lower than the radial depth of limited impression; One is formed for holding the buckling groove of collar flange between ring-type teat and the top edge of limited impression.

As preferably, described securing member is downward opening cylinder; The inside of cylinder is provided with the shoulder hole for tight fit different size pen core; In axial opposing stretching when penholder and lower pen rod, after collar flange departs from the upside of limited impression, can with described upper penholder outer wall tight fit until deviate from.

Have employed the pen of technique scheme, this pen is coordinated with being mutually socketed between lower pen rod by upper penholder, can be slidably connected the length changing whole penholder between upper penholder and lower pen rod within the specific limits, thus realizes exposing and hiding of nib in pen core.Because this does not have the cap of traditional pen or a spring structure, therefore, this pen have structure simple novel, use stable, the advantage of grade easy to carry, has enriched kind and the playability of pen.

Accompanying drawing explanation

Fig. 1: the cross-sectional view of the embodiment of the present invention 1.

The close-up schematic view at A place in Fig. 2: Fig. 1.

Fig. 3: the cross-sectional view of the embodiment of the present invention 2.

The close-up schematic view at B place in Fig. 4: Fig. 2.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention is described further.

Embodiment 1: a kind of pen as depicted in figs. 1 and 2, this comprises the upper penholder 1 of hollow, the lower pen rod 2 of hollow and pen core 3.

Pen core 3 is positioned at the hollow inner side of penholder 1 and lower pen rod 2, and upper penholder 1 inside top is also fixed with the securing member 12 for fixing pen core, and pen core 3 top is fixed in securing member 12.

The outer wall on lower pen rod 1 top is provided with limited impression 22, the inwall of upper penholder 2 bottom is provided with collar flange 11, the bottom of upper penholder 2 is socketed on the outer wall on lower pen rod 1 top, and collar flange 11 is positioned at limited impression 22 can be slided up and down, due to the existence of this limited impression 22, upper penholder 1 and lower pen rod 2 are not easy directly to be pulled open to be separated when axial opposing stretching; Also be provided with for the snap ring 21 with pen core CONTACT WITH FRICTION inside lower pen rod 1, when the collar flange 11 of upper penholder 1 lower inner wall slide in the limited impression 22 of lower pen rod 2 external wall of upper portion be in any position time, snap ring 21 can by the CONTACT WITH FRICTION between pen core, pen core is made to be fastened in snap ring 21, thus pen core is not easy mobile, particularly when writing state, playing the effect of fixing pen core, preventing pen core from sliding at axial direction.

Securing member is downward opening cylinder; The inside of cylinder is provided with the shoulder hole 13 for tight fit different size pen core, to coordinate the demand of different size pen core; When firmly when penholder 1 and lower pen rod 2, after collar flange 11 departs from the upside of limited impression 22, tight fit being formed with lower pen rod 2 outer wall, redraw until deviate from stretching of axially supporting or opposing.The securing member of fixing pen core upper end can not only coordinate snap ring 21 make pen core pen write using state time stability, can also to realize preventing when use do not write by pen block by the CONTACT WITH FRICTION of snap ring 21 and receive the function of not going back.

When pen be in write using state and do not write using state conversion time, only need the collar flange 11 of upper penholder 1 lower inner wall to slidably reciprocate can realize at the two ends up and down of the limited impression 22 of lower pen rod 2 external wall of upper portion.When collar flange 11 slides to limited impression 22 lower end, pen core stretches out, and is in and writes using state; When collar flange 11 slides to limited impression 22 upper end, pen core is regained, and is in and does not write using state.

Embodiment 2: a kind of pen as shown in Fig. 3 and Fig. 4, this and the difference of embodiment 1 are to be provided with a loop teat 23 in its limited impression 22, and the radial height of ring-type teat 23 is lower than the radial depth of limited impression 22; One is formed for holding the buckling groove 25 of collar flange 11 between the top edge of ring-type teat 23 and limited impression 22.

When pen be in write using state time, because the radial height of ring-type teat 23 is lower than the radial depth of limited impression 22, firmly upper lower pen rod axial direction can be promoted in opposite directions, collar flange 11 can be made to slide and to cross ring-type teat 23, make the further slide downward of lower pen rod 2 lower limb until the lower end of limited impression 22.Now, pen core just in time stretches out from lower pen rod, is in and can writes state.

When pen be in do not write using state time; collar flange 11 in upper penholder 1 lower inner wall is just in time fastened on the buckling groove 25 being positioned at lower pen rod 2 external wall of upper portion upper limit groove 22; the relative position now going up penholder 1 and lower pen rod 2 remains unchanged; thus make axial direction slip between penholder 1 and lower pen rod 2 be difficult to carry out; realizing whole penholder is accommodated in wherein by pen core, can serve the effect of protection pen core relative to embodiment 1 better.

Above embodiment illustrates by way of example, and it can not as limitation of the present invention.When not deviating from the scope of the invention, its principal character may be used for various embodiment.

Claims

1. a pen, comprises the upper penholder (1) of hollow, the lower pen rod (2) of hollow and pen core (3); Pen core (3) is positioned at the hollow inner side of penholder (1) and lower pen rod (2), upper penholder (1) inside top is also fixed with the securing member (12) for fixing pen core, and pen core (3) top is fixed in securing member (12); It is characterized in that: the outer wall on lower pen rod (1) top is provided with limited impression (22), the inwall of the bottom of upper penholder (2) is provided with collar flange (11), the bottom of upper penholder (2) is socketed on the outer wall on lower pen rod (1) top, and collar flange (11) is positioned at limited impression (22) can slide up and down; Described lower pen rod (1) inner side is also provided with for the snap ring (21) with described pen core CONTACT WITH FRICTION.

2. a kind of pen according to claim 1, it is characterized in that: be provided with a loop teat (23) in described limited impression (22), the radial height of ring-type teat (23) is lower than the radial depth of limited impression (22); One is formed for holding the buckling groove (25) of collar flange (11) between the top edge of ring-type teat (23) and limited impression (22).

3. a kind of pen according to claim 2, is characterized in that: described securing member is downward opening cylinder; The inside of cylinder is provided with the shoulder hole (13) for tight fit different size pen core; In axial opposing stretching when penholder (1) and lower pen rod (2); Collar flange (11) can form tight fit, until deviate from described lower pen rod (2) outer wall after departing from from limited impression (22) upside.