WO2020211623A1 - 一种扭转卡位笔 - Google Patents

一种扭转卡位笔 Download PDF

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Publication number
WO2020211623A1
WO2020211623A1 PCT/CN2020/082034 CN2020082034W WO2020211623A1 WO 2020211623 A1 WO2020211623 A1 WO 2020211623A1 CN 2020082034 W CN2020082034 W CN 2020082034W WO 2020211623 A1 WO2020211623 A1 WO 2020211623A1
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Prior art keywords
pen
penholder
polygonal
guide
front part
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PCT/CN2020/082034
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English (en)
French (fr)
Inventor
陶爱琴
余成鹏
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陶爱琴
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Application filed by 陶爱琴 filed Critical 陶爱琴
Publication of WO2020211623A1 publication Critical patent/WO2020211623A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/06—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by turning means

Definitions

  • the invention relates to a stationery, in particular to a twisting card pen.
  • Writing tools are now a must-have tool in daily work and life.
  • the most used pen is the pressing pen, which can be operated with one hand and is convenient to use.
  • the existing pressing pen has a complicated structure. You need to change the gesture of holding the pen during the writing process before pressing the end of the pen to control the exposure and retraction of the pen core. Sometimes it will cause inconvenience to the user and cannot quickly switch the pen. status.
  • the existing pressing pen is difficult to improve due to technical prejudice, and technicians are tired of improvement.
  • the existing pressing pen has an unstable structure, and parts are easily lost after disassembly, and assembly is also difficult. Not only that, but many parts also lead to particularly high manufacturing costs.
  • the pens with caps currently on the market still have a high occupancy rate due to their low cost, and the loss of the caps of the pens has become a big trouble for users.
  • the purpose of the present invention is to provide a twist-locking pen that can be quickly operated with one hand and without changing gestures when writing.
  • a torsion locking pen comprising a front part of a penholder, a pen core, a back part of the penholder and a spring.
  • the body of the pen core is located in the front part of the penholder and the back part of the penholder, and the spring is wrapped.
  • the front nib of the pen core can be extended and exposed at the front of the pen holder; the rear of the front part of the pen holder is sleeved with a retaining component, and the retaining component can be relative to the front of the pen shaft.
  • Rotating socket when the front part of the penholder and the rear part of the penholder are sleeved, the locking part is located in the rear part of the penholder; the outer surface of the locking part and the rear part of the penholder are provided with a polygonal card slot, the polygonal card
  • the inside of the groove is also provided with a limit stop; the sleeve joint between the front part of the penholder and the back part of the penholder is provided with a sleeve distance that allows the back part of the penholder and the front part of the penholder to move to a certain distance; on the inner side wall of the back part of the penholder It is provided with a protrusion of a clamping member, and the protrusion of the clamping member is accommodated in the polygonal groove; when the rear part of the penholder and the front part of the penholder move axially with each other, the protrusion of the clamping element can be located in the polygonal groove along the periphery of the limit stop Sliding; the limit
  • the rear end of the front part of the penholder is provided with a mounting part with an outer diameter smaller than that of the body, the mounting part includes an annular mounting groove and a mounting convex ring, the mounting convex ring is located on the rear side of the mounting groove;
  • An annular installation rib corresponding to the installation groove is provided on the inner wall.
  • the diameter of the outer side wall of the front rear part of the penholder is the same as the diameter of the outer side wall of the retaining member.
  • the inner diameter of the rear part of the penholder is consistent, reducing manufacturing difficulty and cost.
  • the polygonal card slot is located on the central outer side wall of the locking component, and the limit stop is located in the middle area of the polygonal card slot, so that the card protrusion is received in the guide between the polygonal inner wall of the polygonal card slot and the outer wall of the limit stop
  • the groove structure is movable;
  • the guide groove structure includes a first guide slide, a first guide slope, a second guide slide, a second guide slope, a third guide slide and a return guide for the protrusion of the card Slope;
  • the first guide slide, the first guide slope, the second guide slide, the second guide slope, the third guide slide and the return guide slope are connected end to end in sequence, and the end of the return guide slope is connected to the first guide
  • the chute is connected;
  • the limit stop includes a first limit slope corresponding to the second guide chute, a blocking position for accommodating the protrusion of the clamping member and exposing the pen tip; the blocking position axially corresponds to the The middle part of the second guide slope.
  • the locking protrusion slides in the polygonal groove along the periphery of the limit stopper. After sliding through the first guide slide and the second guide slide, it is locked. The protrusion will be stuck on the blocking position. At this time, the pen tip is exposed and the pen is in use; when the rear part of the penholder and the front part of the penholder move away from each other in the axial direction, the protrusion of the locking position is in the polygonal groove along the limit stop The parts slide around, and after sliding through the third guide chute and the fourth guide chute, the locking protrusion will return to the starting position of the first guide chute.
  • the starting position of the first guide slide of the polygonal card slot is provided with a loading guide slot communicating with the rear end of the locking member, and a blocking step is provided on the loading guide slot.
  • the design of the installation guide groove facilitates the assembly of the clamping part and the front of the penholder, and the blocking step can increase the assembly feel, and at the same time prevent the protrusion of the clamp from being separated from the polygonal groove during the relative movement between the front of the penholder and the back of the penholder .
  • the blocking step is a step with a slope on both sides; the protrusion of the clamping member is a convex portion with a slope on both sides.
  • the sloped steps can facilitate assembly.
  • the locking member is cylindrical as a whole, and the front end of the locking member is provided with a plurality of deformation openings deep in the cylindrical axial direction, and each deformation opening vertically penetrates the annular mounting rib.
  • the purpose of setting the deformable opening is to expand the opening to facilitate the assembly of the clamping component into the front part of the penholder.
  • the front end of the rear part of the penholder is provided with a first positioning mark groove, and the first positioning mark groove and the protrusion of the clip are located on the same axis.
  • the protrusion of the clip is located on the inner wall of the back of the penholder, which is not easy to see during assembly.
  • a first positioning mark slot is provided on the back of the pen to identify the position of the protrusion of the card for easy assembly.
  • the limit stop is composed of a first stop and a second stop close to each other, and the first limit ramp corresponding to the second guide slide is located on the lower side of the first stop;
  • the blocking position that is raised and exposed the tip of the pen core is a gap formed between the first stop and the second stop; the upper side of the first stop and the upper side of the second stop are respectively aligned with the polygon
  • the return guide slope on the card slot corresponds with the return guide slide between them.
  • a soft dust-proof sleeve is provided in the sleeved spacing jacket; two sides of the front part of the penholder are provided with clamping friction parts.
  • the twist card pen of the present invention can be operated quickly with one hand and without changing gestures when writing, and is convenient to use.
  • the twist-locking pen of the present invention has no separate parts such as a cap, and has a simple structure, which avoids the problem of easy loss of the cap.
  • the pressing part of the twisting and locking pen of the present invention is the front part of the pen barrel and the back part of the pen barrel, instead of pressing the button, which can avoid misoperation and solve the accidental touch of the pen in the bag.
  • FIG. 1 is a schematic diagram of the three-dimensional structure of Embodiment 1 of the present invention.
  • Fig. 2 is a three-dimensional cross-sectional schematic diagram of Embodiment 1 of the present invention.
  • Figure 3 is an exploded view of embodiment 1 of the present invention without a pen core and spring.
  • Fig. 4 is a cross-sectional view of the rear part of the penholder of Embodiment 1 of the present invention.
  • Fig. 5 is a schematic diagram of the detent component in embodiment 1 of the present invention.
  • Fig. 6 is a partial enlarged schematic diagram of A in Fig. 4.
  • FIG. 7 is a three-dimensional schematic diagram of Embodiment 2 of the present invention.
  • Fig. 8 is an exploded view of the second embodiment of the present invention without a refill and spring.
  • Fig. 9 is a schematic diagram of a locking component in embodiment 2 of the present invention.
  • Fig. 10 is a schematic diagram of assembling a spring and a refill according to an embodiment of the present invention.
  • a torsion locking pen as shown in Figs. 1 to 6 and 10 is composed of a front part of a pen bar 1, a pen core 2, a back part 3 of a pen bar, and a spring 4.
  • the body of the pen core 2 is located in the front part 1 of the pen barrel and the back part 3 of the pen barrel.
  • the spring 4 is wrapped around the outer part of the pen core 2 near the pen tip.
  • the front nib of the pen core 2 can be exposed at the front part 1 of the pen barrel.
  • the front part 1 of the barrel is hollow to accommodate the pen core 2, and the front part 1 of the barrel has a small caliber, which can accommodate the extension of the pen tip and the restriction of the spring 4 from coming out.
  • the rear part of the front part 1 of the penholder is provided with a mounting part, and a locking part 5 is sleeved through the installation part, and the locking part 5 is rotatably sleeved relative to the front part 1 of the penholder.
  • the mounting part is a structure that is located at the rear end of the front part 1 of the penholder and has an outer diameter smaller than the body.
  • the mounting part includes an annular mounting groove 12 and a mounting convex ring 13, and the mounting convex ring 13 is located behind the mounting groove 12.
  • the above-mentioned locking member 5 is cylindrical as a whole, and the inner wall of the locking member 5 is provided with an annular mounting rib 53a corresponding to the above-mentioned mounting groove 12.
  • the inner side of the annular mounting rib 53a is also provided with a pen shaft
  • the installation convex ring 13 on the front part 1 corresponds to the second installation groove 53b.
  • the annular installation rib 53a is located at the front of the retaining member 5, and is fitted into the installation groove 12 of the penholder front 1 through the annular installation rib 53a.
  • the mounting convex ring 13 is also fitted into the second mounting groove 53b of the locking member 5 to complete the above-mentioned rotary sleeve socket connection, so that the locking member 5 and the penholder front 1 can rotate relatively.
  • the diameter of the rear outer wall of the barrel front 1 is the same as the diameter of the outer wall of the retaining member 5.
  • the locking component 5 is located in the rear part 3 of the penholder as a whole, and a polygonal locking groove 51 is provided on the contact surface of the outer surface of the locking part 5 and the rear part 3 of the penholder.
  • a limit stop 52 is also provided inside the polygonal slot 51.
  • the outer diameter of the front part 1 of the barrel is smaller than the front part of the rear part 3 of the barrel.
  • the front part of the barrel rear part 3 is used as a sleeve to cover the front part 1 of the barrel.
  • the rear part 3 and the front part 1 of the barrel move mutually with a certain distance between the sleeves 11, and the sleeve distance 11 makes the front 1 and the rear 3 of the barrel have a pressing stroke of relative axial movement.
  • the inner wall of the back 3 of the pen holder is provided with a clamping member protrusion 31, and the clamping member protrusion 31 is received in the polygonal clamping groove 51.
  • the protrusion 31 of the clamping member can slide in the polygonal groove 51 along the periphery of the limit stop 52.
  • the polygonal card slot 51, the limit stop member 52 and the card protrusion 31 covered by the present invention cooperate in the following manner: the limit stop member 52 is located in the central area of the polygonal card slot 51, and the rear part 3 of the penholder is 1 axis to the front part of the penholder.
  • the clamping member protrusion 31 is locked into the limit stop 52, the rear part 3 of the penholder and the front part 1 of the penholder are relatively close to each other in the axial direction, and the pen core 2 is in an exposed state.
  • the protrusion 31 of the clamping member When the protrusion 31 of the clamping member is separated from the stopper 52 and the rear part 3 of the pen barrel and the front part 1 of the pen barrel are in the second stage of axial distance, the pen core 2 is in a hidden state. As long as the limit stop 52 is located in the polygonal groove 51, the manner in which the clamping protrusion 31 has the above two states is within the scope of the present invention. For those skilled in the art, when the rear portion 3 of the barrel and the front portion 1 of the barrel are relatively close to each other in the axial direction, the protrusion 31 of the clamping member is locked into the stopper 52, and the rear portion 3 of the barrel is opposite to the front portion of the barrel.
  • the first type of polygonal card slot 51, limit stop 52, and card protrusion 31 structure and specific implementation:
  • the above-mentioned polygonal card slot 51 is located on the central outer side wall of the locking member 5, and the limit stop 52 is located in the central area of the polygonal card slot 51, so that the card protrusion 31 is accommodated in the polygonal inner wall of the polygonal card slot 51 and the limit stop 52
  • the guide groove structure between the outer walls is movable in the structure.
  • the guide groove structure includes a first guide slide 51a, a first guide slope 51b, a second guide slide 51c, a second guide slope 51d, a third guide slide 51e, and a return guide for the movement of the clip protrusion 31 Slope 51f.
  • the first guide slide 51a, the first guide slope 51b, the second guide slide 51c, the second guide slope 51d, the third guide slide 51e, and the return guide slope 51f are connected first in sequence, and the end of the return guide slope 51f is connected with The first guiding slide 51a is connected.
  • the limit stop 52 includes a first limit ramp 52a corresponding to the second guide slide 51c, a blocking stop 52b for accommodating the protrusion 31 of the clamping member and exposing the tip of the pen core; the blocking stop 52b axially corresponds to The middle area of the second guide slope 51d.
  • the pen tip is stably exposed in place.
  • the retaining member 5 rotates to make the clamping member protrusion 31 move along the second guide slope 51d; after releasing it, it rebounds, and the clamping member protrusion 31 moves along the third
  • the guide slide 51e moves until the retaining member 5 rotates under the action of the return guide slope 51f; the retaining member 31 returns to the initial position, and the pen core 2 is in a hidden state.
  • the force in the above-mentioned carry phase depends on the relative movement of the front part 1 and the back part 3 of the penholder with one hand, and the force in the above-mentioned return phase is completed by the elastic force of the spring 4.
  • the above-mentioned limiting member 52 is composed of a first limiting member 521 and a second limiting member 522, and the first limiting member 521 and the second limiting member 522 are both parallel to each other.
  • the first limiting member 521 and the second limiting member 522 form an acute angle where the first limiting member 521 and the second limiting member 522 are connected, and the acute-angle receiving area is the above-mentioned blocking stop 52b.
  • the polygonal slot 51 is a polygonal groove formed by overlapping two parallelograms with different sizes and overlapping extension lines of two adjacent sides.
  • a soft dust-proof cover 11a can be provided at the socket spacing 11, and both sides of the front of the pen shaft are provided There is a clamping friction portion 1a.
  • the position relationship and connection relationship between the pen core and the spring in Embodiment 1 and Embodiment 2 are shown in FIG. 10.
  • the twisting locking pen in Embodiment 2 is only an improvement to another solution of the locking component 5.
  • the limit stop 52 is composed of the first close to each other.
  • the stopper 524 and the second stopper 525 are composed.
  • the first limit slope 52a corresponding to the second guide slide 51c is located on the lower side of the first stopper 524; it is used to accommodate the protrusion 31 of the card and make the pen core
  • the exposed blocking position 52b of the pen tip is a gap formed between the first stopper 524 and the second stopper 525; the upper side of the first stopper 524 and the upper side of the second stopper 525 are respectively connected to the polygonal slot
  • the return guide slope 51f on 51 corresponds with a return guide slide 51h therebetween. This design makes the distance between the upper side of the limit stop and the upper side of the polygonal slot smaller, so that the overall axial size of the locking member 5 can be shortened.

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  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Pens And Brushes (AREA)
  • Clips For Writing Implements (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种扭转卡位笔，包括笔杆前部（1）、笔芯（2）、笔杆后部（3）、弹簧（4）和卡位部件（5），其中，笔芯（2）的本体位于笔杆前部（1）和笔杆后部（3）内，弹簧（4）包裹于笔芯（2）靠近笔尖处的外部，笔芯（2）前部的笔尖在笔杆前部（1）可以露出或缩回，笔杆前部（1）的后部套接有卡位部件（5），卡位部件（5）相对于笔杆前部（1）可旋转套接并位于笔杆后部（3）内，卡位部件（5）的外表面与笔杆后部（3）接触面上设有多边形卡槽（51），多边形卡槽（51）的内部还设有限位档件（52），笔杆后部（3）的内侧壁上设有卡件凸起（31），卡件凸起（31）容纳在所述多边形卡槽（51）内，笔杆后部（3）与笔杆前部（1）轴向相互运动时，卡件凸起（31）可在多边形卡槽（51）沿限位档件（52）周边滑动，使得笔芯（2）的前部笔尖在笔杆前部（1）露出或缩回。

Description

一种扭转卡位笔 技术领域
本发明涉及一种文具，特别是涉及一种扭转卡位笔。
背景技术
书写工具是现在日常工作与生活中一种必备的工具，其中，使用最多的为按压笔，可以单手操作，方便使用。但是现有的按压笔，结构较为复杂，在书写的过程中需要改变握笔的手势之后，才能按压笔端，控制笔芯的露出与收回，有些时候会给使用者带来不便，无法快速切换笔的状态。
与此同时，现有的摁压笔由于技术偏见，改进难度大，技术人员疲于改进，实际上现有的摁压笔结构不稳定，拆卸之后配件容易丢失，并且装配也很困难。不仅如此，部件多还导致制造成本特别高。就因为这个原因，现在市面上的带笔帽的笔由于成本低占有率还是极高，带笔帽的笔笔帽丢失已经成为使用者一大麻烦。
另外，我们将按压笔装入书包，公文包和口袋，都不可避免地会碰出摁压钮，导致笔芯露出画花公文包内的纸张、包内布以及衣裤口袋，造成麻烦。
发明内容
本发明的发明目的是在于提供一种能够在书写的时候，单手并且不用变化手势就能够快速操作的扭转卡位笔。
为了实现上述发明目的，本发明采用了以下技术方案：一种扭转卡位笔，包括笔杆前部、笔芯、笔杆后部和弹簧，笔芯的本体位于笔杆前部和笔杆后部内，弹簧包裹于笔芯靠近笔尖处的外部，笔芯的前部笔尖在笔杆前部可以伸出并露出；所述笔杆前部的后部套接有一个卡位部件，卡位部件相对于笔杆前部可旋转套接；当笔杆前部和笔杆后部套接后，所述卡位部件位于笔杆后部内；所述卡位部件外表面与笔杆后部接触面上设有多边形卡槽，所述多边形卡槽内部还设有限位档件；所述笔杆前部和笔杆后部套接处设有可使笔杆后部和笔杆前部相 互运动一定行程的套接间距；所述笔杆后部的内侧壁上设有卡件凸起，卡件凸起容纳在所述多边形卡槽内；所述笔杆后部与笔杆前部轴向相互运动时，卡件凸起可在多边形卡槽沿限位档件周边滑动；所述限位档件位于多边形卡槽中部区域，所述笔杆后部与笔杆前部轴向相互运动时，使得卡件凸起卡入限位档件，笔杆后部与笔杆前部处于轴向相对靠近第一阶段，笔芯处于露出状态；当卡件凸起脱离限位档件且笔杆后部与笔杆前部处于轴向远离的第二阶段，笔芯处于隐藏状态。
优选地，所述笔杆前部的后端部设有外径小于其本体的安装部，所述安装部包括环形的安装槽和安装凸环，安装凸环位于安装槽后侧；卡位部件的内壁上设有与所述安装槽相对应的环形安装凸棱。当笔杆前部与卡位部件套接安装后，所述环形安装凸棱嵌设于安装槽内。
优选的，所述笔杆前部的后部外侧壁直径与卡位部件外侧壁直径相同。使得笔杆后部的内径前后一致，降低制造难度和成本。
优选的，多边形卡槽位于卡位部件的中部外侧壁上，限位档件位于多边形卡槽中部区域，使得卡件凸起容纳于多边形卡槽的多边形内壁和限位档件外壁之间的导向凹槽结构内活动；导向凹槽结构包括用于卡件凸起活动的第一导向滑道、第一导向斜坡、第二导向滑道、第二导向斜坡、第三导向滑道和回位导向斜坡；第一导向滑道、第一导向斜坡、第二导向滑道、第二导向斜坡、第三导向滑道和回位导向斜坡依次首尾相接，回位导向斜坡末端与所述第一导向滑道相接；限位档件包括与第二导向滑道对应的第一限位斜坡、用于容纳卡件凸起且使得笔芯笔尖外露的阻挡卡位；阻挡卡位轴向对应于所述第二导向斜坡中部。
当笔杆后部和笔杆前部轴向相互靠近运动时，卡位凸起在多边形卡槽内沿限位挡件周边滑动，当滑过第一导向滑道和第二导向滑道后，卡位凸起会卡设在阻挡卡位上，此时，笔尖露出，笔处于使用状态；当笔杆后部和笔杆前部轴向相互远离运动时，卡位凸起在多边形卡槽内沿限位挡件周边滑动，当滑过第三导向滑道和第四导向滑道后，卡位凸起会回到第一导向滑道的起始位置。
优选的，所述多边形卡槽的第一导向滑道的起始位处设有与所述卡位部件后端连通的装入导槽，装入导槽上设有阻挡台阶。装入导槽的设计便于卡位部件与笔杆前部装配在一起，阻挡台阶可以增加装配手感，同时防止卡件凸起在笔杆前部和笔杆后部的相对运动过程中从多边形卡槽中脱离。
优选的，阻挡台阶是两侧均具有斜坡度的台阶；所述卡件凸起是两侧均设有斜坡度的凸部。有斜度的台阶可以方便装配。
优选的，卡位部件整体呈圆筒状，卡位部件的前端设有多个沿圆筒形轴向深入的形变开口，每个形变开口垂直贯通所述环形安装凸棱。设置所述形变开口的目的是膨胀口，方便卡位部件装配进笔杆前部。
优选的，所述笔杆后部的前端设有第一定位标槽，所述第一定位标槽与所述卡件凸起位于同一轴线上。卡件凸起位于笔杆后部的内壁，装配时不易看到，在笔杆后部上设置第一定位标槽，可以标识卡件凸起的位置，便于装配。
优选的，限位档件由相互靠近的第一挡块和第二挡块组成，所述与第二导向滑道对应的第一限位斜坡位于第一挡块的下侧；用于容纳卡件凸起且使得笔芯笔尖外露的阻挡卡位是位于第一挡块和第二挡块之间形成的缺口；第一挡块的上侧和第二挡块的上侧分别与所述多边形卡槽上的回位导向斜坡对应并且之间留出回位导向滑道。上述优选方式大大减少了多边形卡槽的轴向长度，减少了卡位部件的轴向长度。
优选的，套接间距外套有软质防尘套；所述笔杆前部的其中两侧部设有夹持摩擦部。
与现有技术相比，采用了上述技术方案后，具有如下有益效果：
1.本发明中的扭转卡位笔，在书写的时候，单手并且不用变化手势就能够快速操作，方便使用。
2.相对于传统笔帽的笔，本发明中的扭转卡位笔没有笔帽等分离部件，结构简单，避免了笔帽易丢失的问题。
3.相对于传统的按压笔，本发明中的扭转卡位笔的按压部是笔杆前部和笔杆后部，而非摁压钮，可以避免误操作，解决按压笔放在包中误触从而弄脏公文包中的物品的问题。
附图说明
图1为本发明实施例1的立体结构示意图。
图2为本发明实施例1的立体剖面示意图。
图3为本发明实施例1的不带笔芯和弹簧状态的爆炸视图。
图4为本发明实施例1的笔杆后部的剖面视图。
图5为本发明实施例1中卡位部件的示意图。
图6为图4中A处的局部放大示意图。
图7为本发明实施例2的立体示意图。
图8为本发明实施例2的不带笔芯和弹簧状态的爆炸视图。
图9为本发明实施例2中卡位部件的示意图。
图10为本发明实施例装配弹簧和笔芯的示意图。
具体实施方式
下面结合附图对本发明做进一步描述。
实施例1：
如图1至6、图10所示的一种扭转卡位笔，由一笔杆前部1、一笔芯2、一笔杆后部3和一弹簧4组成。笔芯2的本体位于笔杆前部1和笔杆后部3内，弹簧4包裹于笔芯2靠近笔尖处的外部，笔芯2的前部笔尖在笔杆前部1可以伸出露出。
其中，上述笔杆前部1中空能够容纳笔芯2，笔杆前部1口径小，可容纳笔尖伸出和限制弹簧4脱出。笔杆前部1的后部设有一安装部，通过安装部套接有一个卡位部件5，卡位部件5相对于笔杆前部1可旋转套接。安装部是位于笔杆前部1的后端部且外径小于其本体的结构，安装部包括环形的安装槽12和安装凸环13，安装凸环13位于安装槽12后侧。
上述卡位部件5整体呈圆筒状，而卡位部件5的内壁上设有与上述安装槽12相对应的环形安装凸棱53a，最好地，环形安装凸棱53a内侧还设有与笔杆前部1上的安装凸环13相应的第二安装槽53b，环形安装凸棱53a位于卡位部件5的前部，并通过环形安装凸棱53a配装入笔杆前部1的安装槽12，安装凸环13同样地也配装入卡位部件5的第二安装槽53b，完成上述旋转套接的套接方式，使得卡位部件5和笔杆前部1可相对旋转。
当笔杆前部1和笔杆后部3套接后，所述笔杆前部1的后部外侧壁直径与卡位部件5外侧壁直径相同。卡位部件5整体均位于笔杆后部3内，卡位部件5外表面与笔杆后部3接触面上设有多边形卡槽51。多边形卡槽51内部还设有限位档件52。上述笔杆前部1的外径尺寸小于笔杆后部3前部，笔杆后部3前部作为套筒外套入笔杆前部1，笔杆前部1和笔杆后部3套接处设有可使笔杆后部3和笔杆前部1相互运动一定行程的套接间距11，套接间距11使得笔杆前部1和笔杆后部3之间具有轴向相对运动的摁压行程。
上述笔杆后部3的内侧壁上设有设有卡件凸起31，卡件凸起31容纳在所述多边形卡槽51内。笔杆后部3与笔杆前部1轴向相互运动时，卡件凸起31可在多边形卡槽51沿限位档件52周边滑动。
本发明涵盖的多边形卡槽51、限位档件52以及卡件凸起31的配合方式如下：限位档件52位于多边形卡槽51中部区域，所述笔杆后部3与笔杆前部1轴向相互运动时，使得卡件凸起31卡入限位档件52，笔杆后部3与笔杆前部1处于轴向相对靠近第一阶段，笔芯2处于露出状态。当卡件凸起31脱离限位档件52且笔杆后部3与笔杆前部1处于轴向远离的第二阶段，笔芯2处于隐藏状态。只要限位档件52位于多边形卡槽51，使得卡件凸起31具有上述两种状态的方式，均是本发明涵盖的范围。对于本领域技术人员而言，实现笔杆后部3与笔杆前部1处于轴向相对靠近第一阶段时，卡件凸起31卡入限位档件52，而笔杆后部3与笔杆前部1处于轴向远离的第二阶段时，卡件凸起31能够脱离限位档件52回归原始位置，这种实现方式应当是本领域技术人员根据上述描述能够合理推导获得的多种实现方式，下文 举例两种具体结构。
第一种多边形卡槽51、限位档件52以及卡件凸起31结构以及具体实施方式：
上述多边形卡槽51位于卡位部件5的中部外侧壁上，限位档件52位于多边形卡槽51中部区域，使得卡件凸起31容纳于多边形卡槽51的多边形内壁和限位档件52外壁之间的导向凹槽结构内活动。
导向凹槽结构包括用于卡件凸起31活动的第一导向滑道51a、第一导向斜坡51b、第二导向滑道51c、第二导向斜坡51d、第三导向滑道51e和回位导向斜坡51f。第一导向滑道51a、第一导向斜坡51b、第二导向滑道51c、第二导向斜坡51d、第三导向滑道51e和回位导向斜坡51f依次首位相接，回位导向斜坡51f末端与所述第一导向滑道51a相接。
限位档件52包括与第二导向滑道51c对应的第一限位斜坡52a、用于容纳卡件凸起31且使得笔芯笔尖外露的阻挡卡位52b；阻挡卡位52b轴向对应于所述第二导向斜坡51d中部区域。
沿图5虚线所示，当笔杆后部3相对卡位部件5压缩时，卡件凸起31从起始位沿第一导向滑道51a活动，直至沿第一导向斜坡51b到底，此时，卡位部件5旋转，直至卡件凸起31位于第一导向斜坡51b末端，笔杆后部3相对卡位部件5第一次压缩至最大行程。松手后回弹，卡件凸起31沿第二导向滑道51c回退，在第一限位斜坡52a作用下，卡位部件5再旋转，使得卡件凸起31卡入阻挡卡位52b，笔芯笔尖稳定外露在适当位置。当笔杆后部3相对卡位部件5第二次压缩时，即卡位部件5旋转以使得卡件凸起31沿第二导向斜坡51d活动；松手后回弹，卡件凸起31沿第三导向滑道51e活动，直至在回位导向斜坡51f作用下，卡位部件5回旋；卡件凸起31回起始位，笔芯2处于隐藏状态。上述进位阶段的力量依靠单手挤压笔杆前部1和笔杆后部3相对运动作用，而上述回位阶段的力量均是依靠弹簧4弹力作用下完成的。
进一步具体到形状和结构表现上，上述限位档件52由第一限位件521和第二限位件522 组成，所述第一限位件521和第二限位件522均为两边平行的条状凸起，且一头相连呈“7”字形的阻挡台阶，所述第一限位件521和第二限位件522相连处形成一个锐角，该锐角容纳区域即为上述阻挡卡位52b。所述多边形卡槽51为两个大小不同且两条相邻边的延长线分别重合的平行四边形重叠形成的多边形凹槽。
实施例2：
实施例1和实施例2中的扭转卡位笔，为了书写时握笔舒适以及美观的需要，均可以在套接间距11外套设软质防尘套11a，笔杆前部的其中两侧部设有夹持摩擦部1a。实施例1和实施例2中关于笔芯和弹簧的位置关系和连接关系，如图10所示。
如图7-10所示，实施例2中的扭转卡位笔相对于实施例1的，仅仅是对卡位部件5的另一种方案的改进，限位档件52由相互靠近的第一挡块524和第二挡块525组成，所述与第二导向滑道51c对应的第一限位斜坡52a位于第一挡块524的下侧；用于容纳卡件凸起31且使得笔芯笔尖外露的阻挡卡位52b是位于第一挡块524和第二挡块525之间形成的缺口；第一挡块524的上侧和第二挡块525的上侧分别与所述多边形卡槽51上的回位导向斜坡51f对应并且之间留出回位导向滑道51h。该设计使得限位挡件上侧边与多边形卡槽的上侧边之间的距离较小，使得卡位部件5的整体轴向尺寸可以缩短。
以上所述为本发明的优选实施方式，对于本领域的普通技术人员来说不脱离本发明原理的前提下，还可以做出若干变型和改进，这些也应视为本发明的保护范围。

Claims (6)

  1. 一种扭转卡位笔，包括笔杆前部(1)、笔芯(2)、笔杆后部(3)和弹簧(4)，笔芯(2)的本体位于笔杆前部(1)和笔杆后部(3)内，弹簧(4)包裹于笔芯(2)靠近笔尖处的外部，笔芯(2)的前部笔尖在笔杆前部(1)可以伸出并露出；其特征在于：
    所述笔杆前部(1)的后部套接有一个卡位部件(5)，卡位部件(5)相对于笔杆前部(1)可旋转套接；
    当笔杆前部(1)和笔杆后部(3)套接后，所述卡位部件(5)位于笔杆后部(3)内；所述卡位部件(5)外表面与笔杆后部(3)接触面上设有多边形卡槽(51)，所述多边形卡槽(51)内部还设有限位档件(52)；
    所述笔杆前部(1)和笔杆后部(3)套接处设有可使笔杆后部(3)和笔杆前部(1)相互运动一定行程的套接间距(11)；
    所述笔杆后部(3)的内侧壁上设有卡件凸起(31)，卡件凸起(31)容纳在所述多边形卡槽(51)内；所述笔杆后部(3)与笔杆前部(1)轴向相互运动时，卡件凸起(31)可在多边形卡槽(51)沿限位档件(52)周边滑动；
    所述限位档件(52)位于多边形卡槽(51)中部区域，所述笔杆后部(3)与笔杆前部(1)轴向相互运动时，使得卡件凸起(31)卡入限位档件(52)，笔杆后部(3)与笔杆前部(1)处于轴向相对靠近第一阶段，笔芯(2)处于露出状态；
    当卡件凸起(31)脱离限位档件(52)且笔杆后部(3)与笔杆前部(1)处于轴向远离的第二阶段，笔芯(2)处于隐藏状态。
  2. 根据权利要求1所述的一种扭转卡位笔，其特征在于：所述笔杆前部(1)的后端部设有外径小于其本体的安装部，所述安装部包括环形的安装槽(12)和安装凸环(13)，安装凸环(13)位于安装槽(12)后侧；卡位部件(5)的内壁上设有与所述安装槽(12)相对应的环形安装凸棱(53a)。
  3. 根据权利要求1所述的一种扭转卡位笔，其特征在于：多边形卡槽(51)位于卡位部件(5) 的中部外侧壁上，限位档件(52)位于多边形卡槽(51)中部区域，使得卡件凸起(31)容纳于多边形卡槽(51)的多边形内壁和限位档件(52)外壁之间的导向凹槽结构内活动；
    导向凹槽结构包括用于卡件凸起(31)活动的第一导向滑道(51a)、第一导向斜坡(51b)、第二导向滑道(51c)、第二导向斜坡(51d)、第三导向滑道(51e)和回位导向斜坡(51f)；
    第一导向滑道(51a)、第一导向斜坡(51b)、第二导向滑道(51c)、第二导向斜坡(51d)、第三导向滑道(51e)和回位导向斜坡(51f)依次首尾相接，回位导向斜坡(51f)末端与所述第一导向滑道(51a)相接；
    限位档件(52)包括与第二导向滑道(51c)对应的第一限位斜坡(52a)、用于容纳卡件凸起(31)且使得笔芯笔尖外露的阻挡卡位(52b)；阻挡卡位(52b)轴向对应于所述第二导向斜坡(51d)中部。
  4. 根据权利要求2所述的一种扭转卡位笔，其特征在于：卡位部件(5)整体呈圆筒状，卡位部件(5)的前端设有多个沿圆筒形轴向深入的形变开口，每个形变开口垂直贯通所述环形安装凸棱(53a)。
  5. 根据权利要求2所述的一种扭转卡位笔，其特征在于：所述笔杆后部(3)的前端设有第一定位标槽(32)，所述第一定位标槽(32)与所述卡件凸起(31)位于同一轴线上。
  6. 根据权利要求3所述的一种扭转卡位笔，其特征在于：限位档件(52)由相互靠近的第一挡块和第二挡块组成，所述与第二导向滑道(51c)对应的第一限位斜坡(52a)位于第一挡块(524)的下侧；用于容纳卡件凸起(31)且使得笔芯笔尖外露的阻挡卡位(52b)是位于第一挡块(524)和第二挡块(525)之间形成的缺口；第一挡块(524)的上侧和第二挡块(525)的上侧分别与所述多边形卡槽(51)上的回位导向斜坡(51f)对应并且之间留出回位导向滑道(51h)。
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