CN110171231B - Twist reverse flexible pen - Google Patents

Twist reverse flexible pen Download PDF

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Publication number
CN110171231B
CN110171231B CN201910545731.7A CN201910545731A CN110171231B CN 110171231 B CN110171231 B CN 110171231B CN 201910545731 A CN201910545731 A CN 201910545731A CN 110171231 B CN110171231 B CN 110171231B
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China
Prior art keywords
pen
clamping
guide
groove
pen holder
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CN201910545731.7A
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Chinese (zh)
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CN110171231A (en
Inventor
余成鹏
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Hangzhou Jianyi Technology Co ltd
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Hangzhou Jianyi Technology Co ltd
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Priority to CN201910545731.7A priority Critical patent/CN110171231B/en
Publication of CN110171231A publication Critical patent/CN110171231A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43KIMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions

Abstract

The invention discloses a twist telescopic pen which can be operated quickly by one hand without changing gestures during writing. The pen comprises a pen holder front part, a refill, a pen holder rear part and a spring, wherein a body of the refill is positioned in the pen holder front part and the pen holder rear part, the spring wraps the outside of the refill close to a pen point, and the front pen point of the refill can be exposed or retracted in the front of the pen holder through axial movement of the pen holder front part and the pen holder rear part so as to achieve two states of use or non-use. The problem of the pen cap of taking the pen cap easily lost and the problem of the easy maloperation of the pen is pressed to the tradition is solved.

Description

Twist reverse flexible pen
Technical Field
The invention relates to stationery, in particular to a torsional telescopic pen.
Background
The writing tool is a necessary tool in daily work and life at present, wherein, the most used is the pressing pen, can be operated by one hand, and is convenient to use. However, the existing pressing pen is complex in structure, and the pen end can be pressed only after the pen holding gesture needs to be changed in the writing process, so that the pen core is controlled to be exposed and retracted, inconvenience is brought to a user sometimes, and the pen state cannot be switched quickly.
Meanwhile, the existing pressing pen is difficult to improve due to technical prejudice, technicians fatigue in improvement, and the existing pressing pen is unstable in structure, easy to lose accessories after being disassembled, and difficult to assemble. Moreover, the large number of components results in particularly high manufacturing costs. For this reason, the pen with cap on the market is still very high due to low cost, and the loss of the cap becomes a big trouble for users.
In addition, when the pressing pen is placed in a schoolbag, a briefcase and a pocket, the pressing button is inevitably knocked out, so that the refill is exposed out of paper, cloth in the briefcase and a pocket of clothes in the figured briefcase, and troubles are caused.
Disclosure of Invention
The invention aims to provide a torsion telescopic pen which can be operated quickly by one hand without changing gestures during writing.
In order to realize the purpose of the invention, the invention adopts the following technical scheme: a torsional telescopic pen comprises a torsional telescopic pen at the front part of a pen holder, a refill torsional telescopic pen, a torsional telescopic pen at the rear part of the pen holder and a spring torsional telescopic pen, wherein a body of the refill torsional telescopic pen is positioned in the torsional telescopic pen at the front part of the pen holder and the torsional telescopic pen at the rear part of the pen holder; the front torsional telescopic pen of the pen holder consists of a handheld soft rubber sleeve torsional telescopic pen and a front body torsional telescopic pen, wherein a sleeve joint installation part torsional telescopic pen is arranged at the front side of the front body torsional telescopic pen, and a soft rubber sleeve clamping convex ring torsional telescopic pen is arranged in the middle of the sleeve joint installation part torsional telescopic pen; the inner side wall of the handheld soft rubber sleeve torsional telescopic pen is sleeved with the sleeve connection installation part torsional telescopic pen to form elastic tight fit; the rear part of the torsional telescopic pen at the front part of the pen holder is sleeved with a clamping part torsional telescopic pen which is rotatably sleeved relative to the torsional telescopic pen at the front part of the pen holder; when the front torsion telescopic pen of the pen holder is sleeved with the rear torsion telescopic pen of the pen holder, the clamping component torsion telescopic pen is positioned in the rear torsion telescopic pen of the pen holder; a polygonal clamping groove torsional telescopic pen is arranged on the contact surface of the outer surface of the clamping part torsional telescopic pen and the torsional telescopic pen at the rear part of the pen holder, and a limiting stopper torsional telescopic pen is further arranged inside the polygonal clamping groove torsional telescopic pen; the sleeve joint of the torsional telescopic pen at the front part of the pen holder and the torsional telescopic pen at the rear part of the pen holder is provided with a sleeve joint interval torsional telescopic pen which can enable the torsional telescopic pen at the rear part of the pen holder and the torsional telescopic pen at the front part of the pen holder to move for a certain stroke; the inner side wall of the torsional telescopic pen at the rear part of the pen holder is provided with a clamping piece protrusion torsional telescopic pen, and the clamping piece protrusion torsional telescopic pen is accommodated in the polygonal clamping groove torsional telescopic pen; when the torsional telescopic pen at the rear part of the pen holder and the torsional telescopic pen at the front part of the pen holder axially move mutually, the torsional telescopic pen with the raised clamping piece can slide along the periphery of the torsional telescopic pen with the limiting stopper on the torsional telescopic pen with the polygonal clamping groove; the limiting stopper torsional telescopic pen is located in the middle area of the polygonal clamping groove torsional telescopic pen, when the torsional telescopic pen at the rear part of the pen holder and the torsional telescopic pen at the front part of the pen holder axially move mutually, the clamping piece protruding torsional telescopic pen is clamped into the limiting stopper torsional telescopic pen, the torsional telescopic pen at the rear part of the pen holder and the torsional telescopic pen at the front part of the pen holder are in a first stage of axial relative approach, and the cartridge torsional telescopic pen is in an exposed state; when the torsional telescopic pen with the raised clamping piece is separated from the limiting stopper and the torsional telescopic pen at the rear part of the pen holder and the torsional telescopic pen at the front part of the pen holder are in the second stage of axial separation, the cartridge torsional telescopic pen is in a hidden state; the polygonal clamping groove torsional telescopic pen is positioned on the outer side wall of the middle part of the clamping part torsional telescopic pen, and the limiting stopper torsional telescopic pen is positioned in the middle area of the polygonal clamping groove torsional telescopic pen, so that the clamping part protrusion torsional telescopic pen is accommodated in a guide groove structure between the polygonal inner wall of the polygonal clamping groove torsional telescopic pen and the outer wall of the limiting stopper torsional telescopic pen and moves in the guide groove structure; the guide groove structure comprises a first guide slideway torsional telescopic pen, a first guide slope torsional telescopic pen, a second guide slideway torsional telescopic pen, a second guide slope torsional telescopic pen, a third guide slideway torsional telescopic pen and a return guide slope torsional telescopic pen, wherein the first guide slideway torsional telescopic pen, the second guide slideway torsional telescopic pen, the third guide slideway torsional telescopic pen and the return guide slope torsional telescopic pen are used for the movement of the clamping piece protrusion torsional telescopic pen; the first guide slideway torsional telescopic pen, the first guide slope torsional telescopic pen, the second guide slideway torsional telescopic pen, the second guide slope torsional telescopic pen, the third guide slideway torsional telescopic pen and the return guide slope torsional telescopic pen are sequentially connected end to end, and the tail end of the return guide slope torsional telescopic pen is connected with the first guide slideway torsional telescopic pen; the limiting stopper twisting telescopic pen comprises a first limiting slope twisting telescopic pen corresponding to the second guiding slideway twisting telescopic pen and a blocking clamping twisting telescopic pen for accommodating the clamping piece protrusion twisting telescopic pen and enabling a pen point of the pen core to be exposed; the axial direction of the blocking position torsion telescopic pen corresponds to the middle part of the second guide slope torsion telescopic pen; the starting position of the first guide slideway torsional telescopic pen of the polygonal clamping groove torsional telescopic pen is provided with a loading guide groove torsional telescopic pen communicated with the rear end of the clamping part torsional telescopic pen, and the loading guide groove torsional telescopic pen is provided with a stopping step torsional telescopic pen; the loading guide groove torsion telescopic pen is a horn-shaped guide groove with a large rear side and a small front side, and the step torsion telescopic pen is blocked to be positioned at the inner end part of the front side of the horn-shaped guide groove.
The design of the guide slot of packing into is convenient for screens part and the anterior assembly of pen-holder together, blocks that the step can increase the assembly and feels, prevents simultaneously that the fastener arch from breaking away from in the polygonal slot at the anterior relative motion process at pen-holder and pen-holder rear portion, and the little tubaeform guide slot of the big front side of rear side makes screens part 5 conveniently pack into when packing into more, and is in the same direction as smooth not dislocation, avoids the mistake to adorn and destroys the part.
Preferably, the rear end part of the torsional telescopic pen at the front part of the pen holder is provided with an installation part with the outer diameter smaller than that of the body of the torsional telescopic pen, the installation part comprises an annular installation groove torsional telescopic pen and an installation convex ring torsional telescopic pen, and the installation convex ring torsional telescopic pen is positioned at the rear side of the installation groove torsional telescopic pen; the inner wall of the clamping part torsion telescopic pen is provided with an annular mounting bead torsion telescopic pen corresponding to the mounting groove torsion telescopic pen; the inner side of the clamping part torsion telescopic pen is provided with an annular step torsion telescopic pen corresponding to the front end of the mounting part; the annular step twisting telescopic pen is provided with a plurality of round convex point twisting telescopic pens which are contacted with the front end point of the installation part, or the front end surface of the installation part is provided with a plurality of round convex point twisting telescopic pens which are contacted with the annular step point.
Preferably, the diameter of the outer side wall of the rear part of the torsional telescopic pen at the front part of the pen holder is the same as that of the outer side wall of the torsional telescopic pen of the clamping part.
Preferably, the step-resistant torsion telescopic pen is a step with slopes on two sides; the protrusion of the clamping piece is provided with a torsion telescopic pen, and the two sides of the torsion telescopic pen are provided with protrusions with slope degrees.
When the rear part of the pen holder and the front part of the pen holder axially move close to each other, the clamping protrusion slides in the polygonal clamping groove along the periphery of the limiting stopper, and after sliding through the first guide slideway and the second guide slideway, the clamping protrusion can be clamped on the blocking clamping position, at the moment, the pen point is exposed, and the pen is in a use state; when the rear part of the pen holder and the front part of the pen holder axially move away from each other, the clamping protrusion slides along the periphery of the limiting stopper in the polygonal clamping groove, and after sliding through the third guide slideway and the fourth guide slideway, the clamping protrusion can return to the initial position of the first guide slideway.
Preferably, the clamping part twisting telescopic pen is integrally cylindrical, a plurality of deformation openings which are deep along the axial direction of the cylinder are formed in the front end of the clamping part twisting telescopic pen, and each deformation opening vertically penetrates through the annular mounting rib twisting telescopic pen.
Or the rear end of the installation part is provided with a plurality of deformation opening twisting telescopic pens which axially extend into the front twisting telescopic pens along the penholder, and each deformation opening twisting telescopic pen vertically penetrates through the installation convex ring twisting telescopic pen.
Preferably, the front end of the rear part of the pen holder is provided with a first positioning mark groove, and the first positioning mark groove and the clamping piece bulge are positioned on the same axis. The protruding inner wall that is located the pen-holder rear portion of fastener is difficult for seeing during the assembly, sets up first locating mark groove on the pen-holder rear portion, can sign the bellied position of fastener, the assembly of being convenient for.
Preferably, the limit stopper consists of a first stopper and a second stopper which are close to each other, and the first limit slope corresponding to the second guide slideway is positioned at the lower side of the first stopper; the blocking clamp position used for accommodating the bulge of the clamp part and exposing the pen point of the pen core is a notch formed between the first stop block and the second stop block; the upper side of the first stop block and the upper side of the second stop block correspond to the return guide slope on the polygonal clamping groove respectively and a return guide slide way is reserved between the upper side of the first stop block and the upper side of the second stop block. The preferred mode greatly reduces the axial length of the polygonal clamping groove and the axial length of the clamping part.
Preferably, a plurality of inwards concave friction area torsion telescopic pens are arranged on the outer wall of the middle part of the handheld soft rubber sleeve torsion telescopic pen in a surrounding mode, and the friction area torsion telescopic pen is formed by surrounding a plurality of concentric oval scribing torsion telescopic pens arranged on the outer wall of the handheld soft rubber sleeve torsion telescopic pen.
Compared with the prior art, after the technical scheme is adopted, the method has the following beneficial effects:
1. the twisting telescopic pen can be operated quickly by one hand without changing gestures during writing, and is convenient to use.
2. Compared with the pen with the traditional pen cap, the torsional telescopic pen has no pen cap and other separating parts, is simple in structure, and avoids the problem that the pen cap is easy to lose.
3. Compared with the traditional pressing pen, the pressing parts of the twisting telescopic pen are the front part and the rear part of the pen holder instead of pressing the button, so that misoperation can be avoided, and the problem that the pressing pen is placed in a bag to be touched by mistake so as to pollute articles in the briefcase is solved.
Drawings
Fig. 1 is a schematic perspective view of embodiment 1 of the present invention.
Fig. 2 is a schematic perspective cross-sectional view of embodiment 1 of the present invention.
Fig. 3 is an exploded view of the state without the cartridge and the spring of embodiment 1 of the present invention.
Fig. 4 is a sectional view of the rear of a cartridge in embodiment 1 of the present invention.
Fig. 5 is a schematic view of a locking member in embodiment 1 of the present invention.
Fig. 6 is a partially enlarged schematic view of a portion a of fig. 4.
Fig. 7 is a schematic perspective view of embodiment 2 of the present invention.
Fig. 8 is an exploded view of the invention in example 2 without the cartridge and spring.
Fig. 9 is a schematic view of a locking member in embodiment 2 of the present invention.
Fig. 10 is a schematic view of the assembly of a spring and cartridge according to an embodiment of the present invention.
Fig. 11 is a schematic perspective view of embodiment 3 of the present invention.
Fig. 12 is a schematic perspective cross-sectional view of embodiment 3 of the present invention.
Fig. 13 is an exploded view of the invention in example 3 without the cartridge and spring.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1:
a twist-retractable pen as shown in fig. 1 to 6 and 10 is composed of a front barrel part 1, a refill 2, a rear barrel part 3 and a spring 4. The body of the refill 2 is positioned in the front part 1 of the penholder and the rear part 3 of the penholder, the spring 4 is wrapped outside the position, close to the nib, of the refill 2, and the nib at the front part of the penholder can extend out of the front part 1 of the penholder to be exposed.
The pen holder is hollow at the front part 1 and can accommodate the pen core 2, the caliber of the front part 1 of the pen holder is small, the pen core can be extended out, and the spring 4 can be limited to be separated. The rear part of the front part 1 of the pen holder is provided with an installation part, a clamping part 5 is sleeved through the installation part, and the clamping part 5 can be rotatably sleeved relative to the front part 1 of the pen holder. The installation department is the structure that is located the rear end portion of pen-holder front portion 1 and the external diameter is less than its body, and the installation department includes annular mounting groove 12 and installation bulge loop 13, and installation bulge loop 13 is located mounting groove 12 rear side.
The blocking part 5 is cylindrical as a whole, the inner wall of the blocking part 5 is provided with an annular mounting convex rib 53a corresponding to the mounting groove 12, preferably, the inner side of the annular mounting convex rib 53a is also provided with a second mounting groove 53b corresponding to the mounting convex ring 13 on the front part 1 of the pen holder, the annular mounting convex rib 53a is positioned at the front part of the blocking part 5 and is assembled into the mounting groove 12 of the front part 1 of the pen holder through the annular mounting convex rib 53a, the mounting convex ring 13 is also assembled into the second mounting groove 53b of the blocking part 5, the sleeving manner of the rotary sleeving is completed, and the blocking part 5 and the front part 1 of the pen holder can rotate relatively.
When the front part 1 of the penholder is sleeved with the rear part 3 of the penholder, the diameter of the outer side wall of the rear part of the front part 1 of the penholder is the same as that of the outer side wall of the clamping part 5. The clamping parts 5 are integrally positioned in the rear part 3 of the penholder, and polygonal clamping grooves 51 are formed in the contact surfaces of the outer surfaces of the clamping parts 5 and the rear part 3 of the penholder. The polygonal slot 51 is also provided with a limit stopper 52 inside. The outer diameter of the front part 1 of the penholder is smaller than that of the rear part 3 of the penholder, the front part 3 of the rear part of the penholder is sleeved outside the front part 1 of the penholder as a sleeve, a sleeving distance 11 which can enable the rear part 3 of the penholder and the front part 1 of the penholder to move for a certain distance is arranged at the sleeving part of the front part 1 of the penholder and the rear part 3 of the penholder, and the sleeving distance 11 enables the front part 1 of the penholder and the rear part.
The inner side wall of the rear part 3 of the penholder is provided with a clamping piece bulge 31, and the clamping piece bulge 31 is accommodated in the polygonal clamping groove 51. When the rear part 3 of the pen holder and the front part 1 of the pen holder move axially, the clamping piece protrusion 31 can slide on the polygonal clamping groove 51 along the periphery of the limiting stopper 52.
The matching mode of the polygonal clamping groove 51, the limiting stopper 52 and the clamping piece protrusion 31 covered by the invention is as follows: the limiting stopper 52 is positioned in the middle area of the polygonal clamping groove 51, when the rear part 3 of the pen holder and the front part 1 of the pen holder axially move mutually, the clamping piece protrusion 31 is clamped into the limiting stopper 52, the rear part 3 of the pen holder and the front part 1 of the pen holder are in a first stage of axial relative approach, and the pen core 2 is in an exposed state. When the clamping piece protrusion 31 is separated from the limit stopper 52 and the rear part 3 of the pen holder and the front part 1 of the pen holder are in the second stage of axial separation, the pen core 2 is in a hidden state. The invention is within the scope of the invention as long as the position-limiting stopper 52 is located in the polygonal slot 51, so that the latch protrusion 31 has the above two states. For those skilled in the art, the first stage of the rear portion 3 and the front portion 1 of the barrel being relatively close to each other in the axial direction is realized, the catching protrusion 31 is caught by the limiting stopper 52, and the second stage of the rear portion 3 and the front portion 1 of the barrel being far away from each other in the axial direction is realized, the catching protrusion 31 can be separated from the limiting stopper 52 and return to the original position.
The first polygonal slot 51, the limiting stopper 52 and the latch protrusion 31 structure and the specific implementation:
the polygonal clamping groove 51 is positioned on the outer side wall of the middle part of the clamping part 5, and the limiting stopper 52 is positioned in the middle area of the polygonal clamping groove 51, so that the clamping part protrusion 31 is accommodated in the guide groove structure between the polygonal inner wall of the polygonal clamping groove 51 and the outer wall of the limiting stopper 52 and moves in the guide groove 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 slope 51f for movement of the catching projection 31. The first guide slide way 51a, the first guide slope 51b, the second guide slide way 51c, the second guide slope 51d, the third guide slide way 51e and the return guide slope 51f are sequentially connected at the head position, and the tail end of the return guide slope 51f is connected with the first guide slide way 51 a.
The limit stopper 52 comprises a first limit slope 52a corresponding to the second guide slideway 51c, and a block detent 52b for accommodating the gripper projection 31 and exposing the pen point of the pen core; the blocking detent 52b axially corresponds to a middle region of the second guide ramp 51 d.
As shown by the dotted line in fig. 5, when the rear barrel part 3 is compressed relative to the locking part 5, the catching protrusion 31 moves along the first guide rail 51a from the initial position to the end along the first guide slope 51b, and at this time, the locking part 5 rotates until the catching protrusion 31 is located at the end of the first guide slope 51b, and the rear barrel part 3 is compressed relative to the locking part 5 to the maximum stroke for the first time. After the hand is loosened, the clamping piece protrusion 31 rebounds along the second guide slide way 51c, and under the action of the first limiting slope 52a, the clamping part 5 rotates again, so that the clamping piece protrusion 31 is clamped into the blocking clamping position 52b, and the pen point of the pen refill is stably exposed at a proper position. When the rear part 3 of the penholder is compressed for the second time relative to the blocking part 5, namely, the blocking part 5 rotates to enable the clamping piece bulge 31 to move along the second guide slope 51 d; the clamping part 5 rebounds after the hand is released, and the clamping part boss 31 moves along the third guide slide way 51e until the clamping part boss rotates around under the action of the return guide slope 51 f; the card member protrusion 31 returns to the initial position, and the pen core 2 is in a hidden state. The force in the carry stage is realized by the relative motion action of the front part 1 of the penholder and the rear part 3 of the penholder which are extruded by one hand, and the force in the return stage is realized by the elastic force of the spring 4.
Further specifically, in terms of shape and structural expression, the limiting stopper 52 is composed of a first limiting member 521 and a second limiting member 522, the first limiting member 521 and the second limiting member 522 are both strip-shaped protrusions with two parallel sides, and one end of each of the first limiting member 521 and the second limiting member 522 is connected to form a 7-shaped blocking step, an acute angle is formed at the connection position of the first limiting member 521 and the second limiting member 522, and the acute angle accommodating area is the blocking position 52 b. The polygonal slot 51 is a polygonal groove formed by overlapping two parallelograms which have different sizes and are overlapped by the extension lines of two adjacent sides.
The clamping component 5 is integrally cylindrical, a plurality of deformation openings which are deep along the axial direction of the cylinder are formed in the front end of the clamping component 5, and each deformation opening vertically penetrates through the annular mounting convex edge 53a, so that the installation is convenient.
Example 2:
in the twist telescopic pens of embodiments 1 and 2, a soft dustproof cover 11a may be provided outside the engaging space 11 for the sake of comfortable holding and beautiful appearance during writing, and the grip friction portions 1a may be provided on both sides of the front portion of the pen shaft. Fig. 10 shows the positional relationship and the connection relationship between the cartridge and the spring in examples 1 and 2.
As shown in fig. 7 to 10, the twist-retractable pen of embodiment 2 is merely another modification of the retainer member 5 compared to embodiment 1, and the limit stopper 52 is composed of a first stopper 524 and a second stopper 525 which are close to each other, and the first limit slope 52a corresponding to the second guide slide 51c is located at the lower side of the first stopper 524; the blocking detent 52b for receiving the detent projection 31 and exposing the pen tip of the pen core is a notch 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 respectively correspond to the return guide ramps 51f on the polygonal slot 51 and leave a return guide slideway 51h therebetween. The distance between the upper side of the limiting stopper and the upper side of the polygonal clamping groove is smaller due to the design, so that the whole axial dimension of the clamping part 5 can be shortened.
Example 3:
as shown in fig. 11 to 13, this embodiment 3 is different from embodiments 1 and 2 only in the following points, and the rest of the structure and principle are completely the same as those of embodiments 1 and 2. The structure is as follows:
the utility model provides a, this embodiment has made clear the anterior concrete structure of pen-holder, it comprises handheld soft gum cover 1a and anterior body 1b by pen-holder anterior 1, handheld soft gum cover 1a is made by rubber or silica gel material, and anterior body 1b is the working of plastics, this working of plastics inboard is the hole that holds the refill, the external structure of this working of plastics mainly comprises triplex, describe the rear side in its body and embodiment 1 and be one and be used for cup jointing screens part 5 installation department except that, the front side of anterior body 1b still is equipped with the cup joint installation department 1b1 that is used for cup jointing handheld soft gum cover 1a, the middle part of cup joint installation department 1b1 is equipped with soft gum cover block bulge loop 1b10, handheld soft gum cover 1a inside wall with form elasticity tight-fitting after the cover joint installation department 1b1 registrates. Furthermore, a plurality of concave friction areas 1a1 are arranged on the outer wall surrounding the middle part of the hand-held soft rubber sleeve 1a, and the friction area 1a1 is formed by surrounding a plurality of concentric oval scratch grooves 1a11 arranged on the outer wall of the hand-held soft rubber sleeve 1 a.
Secondly, a shallow annular arc-shaped shallow groove 34 is dug on the outer wall of the front side of the rear part 3 of the penholder, and is designed according to human engineering to be matched with a hand to be held, so that friction is better realized, and a user can smoothly complete hand-held compression and extension.
Thirdly, a loading guide groove 526 communicated with the rear end of the clamping part 5 is arranged at the initial position of the first guide slide way 51a of the polygonal clamping groove 51, and a blocking step 523 is arranged on the loading guide groove 526; the receiving guide groove 526 is a flared guide groove having a large rear side and a small front side, and the blocking step 523 is located at the front inner end of the flared guide groove. The trumpet-shaped guide groove can enable the clamping component 5 to be more conveniently installed when being installed, and the clamping component is smooth and not staggered, so that the component is prevented from being damaged due to misinstallation.
Fourthly, an annular step 55 corresponding to the front end of the mounting part is arranged on the inner side of the clamping part 5; the annular step 55 is provided with a plurality of round convex points 551 contacting with the front end of the mounting part, or the front end of the mounting part is provided with a plurality of round convex points 551 contacting with the annular step. The contact area of the round salient points 551 is small, so that the clamping part 5 rotates more smoothly, the matching error caused by shrinkage of the part after demoulding is reduced, the requirement on a mould is lower, and meanwhile, the durability is improved.
Fifthly, contrary to the embodiment 1 and 2, the rear end of the mounting part of the embodiment is provided with a plurality of deformation openings 130 extending into the front part 1 of the penholder along the axial direction, each deformation opening 130 vertically penetrates through the mounting convex ring 13, the front end of the clamping part 5 is not provided with a deformation opening, and the deformation openings 130 and the deformation openings are replaced in a primary-secondary mode, so that the structure is more stable.
The rest of the structure of this embodiment, which is not described, is completely the same as that of embodiments 1 and 2.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit of the invention, and these should be considered as the scope of the invention.

Claims (6)

1. A torsion telescopic pen comprises a pen holder front part (1), a refill (2), a pen holder rear part (3) and a spring (4), wherein a body of the refill (2) is positioned in the pen holder front part (1) and the pen holder rear part (3), the spring (4) is wrapped outside the position, close to a pen point, of the refill (2), and the pen point at the front part of the pen holder (1) of the refill (2) can extend out and be exposed; the method is characterized in that: the front part (1) of the pen holder consists of a handheld soft rubber sleeve (1 a) and a front body (1 b), the front side of the front body (1 b) is provided with a sleeve mounting part (1 b 1), and the middle part of the sleeve mounting part (1 b 1) is provided with a soft rubber sleeve clamping convex ring (1 b 10); the inner side wall of the hand-held soft rubber sleeve (1 a) is sleeved with the sleeved mounting part (1 b 1) to form elastic tight fit; the rear part of the front part (1) of the pen holder is sleeved with a clamping part (5), and the clamping part (5) can be rotatably sleeved relative to the front part (1) of the pen holder; when the front part (1) of the penholder is sleeved with the rear part (3) of the penholder, the blocking part (5) is positioned in the rear part (3) of the penholder; a polygonal clamping groove (51) is formed in the contact surface of the outer surface of the clamping part (5) and the rear part (3) of the pen holder, and a limiting stopper (52) is further arranged inside the polygonal clamping groove (51); the sleeving joint of the front part (1) and the rear part (3) of the pen holder is provided with a sleeving distance (11) which can enable the rear part (3) and the front part (1) of the pen holder to move for a certain stroke; the inner side wall of the rear part (3) of the pen holder is provided with a clamping piece bulge (31), and the clamping piece bulge (31) is accommodated in the polygonal clamping groove (51); when the rear part (3) of the pen holder and the front part (1) of the pen holder axially move mutually, the clamping piece protrusion (31) can slide along the periphery of the limiting stopper (52) in the polygonal clamping groove (51);
the limiting stopper (52) is positioned in the middle area of the polygonal clamping groove (51), when the rear part (3) of the pen holder and the front part (1) of the pen holder axially move mutually, the clamping piece protrusion (31) is clamped into the limiting stopper (52), the rear part (3) of the pen holder and the front part (1) of the pen holder are in a first stage of axial relative approach, and the pen core (2) is in an exposed state; when the clamping piece protrusion (31) is separated from the limiting stopper (52) and the rear part (3) of the pen holder and the front part (1) of the pen holder are in the second stage of axial separation, the pen core (2) is in a hidden state; the polygonal clamping groove (51) is positioned on the outer side wall of the middle part of the clamping part (5), and the limiting stopper (52) is positioned in the middle area of the polygonal clamping groove (51), so that the clamping part protrusion (31) is accommodated in a guide groove structure between the polygonal inner wall of the polygonal clamping groove (51) and the outer wall of the limiting stopper (52) and moves in the guide groove structure; the guide groove structure comprises a first guide slide way (51 a), a first guide slope (51 b), a second guide slide way (51 c), a second guide slope (51 d), a third guide slide way (51 e) and a return guide slope (51 f), wherein the first guide slide way (51 a) is used for moving the clamping piece protrusion (31); the first guide slide way (51 a), the first guide slope (51 b), the second guide slide way (51 c), the second guide slope (51 d), the third guide slide way (51 e) and the return guide slope (51 f) are sequentially connected end to end, and the tail end of the return guide slope (51 f) is connected with the first guide slide way (51 a); the limiting stopper (52) comprises a first limiting slope (52 a) corresponding to the second guide slideway (51 c) and a blocking position stopper (52 b) used for accommodating the clamping piece protrusion (31) and enabling the pen point of the pen core to be exposed; the blocking position (52 b) axially corresponds to the middle of the second guide slope (51 d); a loading guide groove (526) communicated with the rear end of the clamping part (5) is arranged at the initial position of a first guide slide way (51 a) of the polygonal clamping groove (51), and a blocking step (523) is arranged on the loading guide groove (526); the loading guide groove (526) is a horn-shaped guide groove with a large rear side and a small front side, and the blocking step (523) is positioned at the inner end part of the front side of the horn-shaped guide groove;
the rear end part of the front part (1) of the penholder is provided with an installation part with the outer diameter smaller than that of the penholder body, the installation part comprises an annular installation groove (12) and an installation convex ring (13), and the installation convex ring (13) is positioned on the rear side of the installation groove (12); the inner wall of the clamping part (5) is provided with an annular mounting convex edge (53 a) corresponding to the mounting groove (12); an annular step (55) corresponding to the front end of the mounting part is arranged on the inner side of the clamping part (5); a plurality of round bumps (551) contacted with the front end point of the mounting part are arranged on the annular step (55), or a plurality of round bumps (551) contacted with the annular step point are arranged on the front end surface of the mounting part;
the diameter of the outer side wall of the rear part of the front part (1) of the penholder is the same as that of the outer side wall of the clamping part (5);
the blocking step (523) is a step with slopes on both sides; the clamping piece bulge (31) is a convex part with slopes on two sides.
2. A twist-retractable pen as claimed in claim 1, wherein: the clamping component (5) is integrally cylindrical, a plurality of deformation openings which go deep in the axial direction of the cylinder are formed in the front end of the clamping component (5), and each deformation opening vertically penetrates through the annular mounting convex rib (53 a).
3. A twist-retractable pen as claimed in claim 1, wherein: the rear end of the mounting part is provided with a plurality of deformation ports (130) extending into the front part (1) of the penholder in the axial direction, and each deformation port (130) vertically penetrates through the mounting convex ring (13).
4. A twist-retractable pen as claimed in claim 1, wherein: the pen holder is characterized in that a first positioning mark groove (32) is formed in the front end of the rear portion (3) of the pen holder, and the first positioning mark groove (32) and the clamping piece protrusion (31) are located on the same axis.
5. A twist-retractable pen as claimed in claim 1, wherein: the limit stopper (52) consists of a first stopper and a second stopper which are close to each other, and the first limit slope (52 a) corresponding to the second guide slideway (51 c) is positioned at the lower side of the first stopper (524); a blocking detent (52 b) for accommodating the catch projection (31) and exposing the pen tip of the pen core is a notch formed between the first stopper (524) and the second stopper (525); the upper side of the first stop block (524) and the upper side of the second stop block (525) respectively correspond to the return guide slope (51 f) on the polygonal clamping groove (51) and a return guide slideway (51 h) is reserved between the upper side of the first stop block and the upper side of the second stop block.
6. A twist-retractable pen as claimed in claim 1, wherein: a plurality of concave friction areas (1 a 1) are arranged on the outer wall surrounding the middle part of the hand-held soft rubber sleeve (1 a), and the friction area (1 a 1) is formed by surrounding a plurality of concentric oval scratch grooves (1 a 11) arranged on the outer wall of the hand-held soft rubber sleeve (1 a).
CN201910545731.7A 2019-06-22 2019-06-22 Twist reverse flexible pen Active CN110171231B (en)

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Application Number Priority Date Filing Date Title
CN201910545731.7A CN110171231B (en) 2019-06-22 2019-06-22 Twist reverse flexible pen

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110014771B (en) * 2019-04-19 2020-01-07 潘晓丹 Twist reverse screens pen
CN111002739B (en) * 2019-12-25 2020-10-09 杭州简弈科技有限公司 Pen with repeatedly reset cylinder

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3644714A1 (en) * 1986-12-30 1988-07-14 Rainer Haefner Ball-point pen
JPH0958182A (en) * 1995-08-23 1997-03-04 Mitsubishi Pencil Co Ltd Writing instrument
AU2003206524A1 (en) * 2002-02-20 2003-09-09 Luc Marcel Lafond Retractable writing instrument
FR2986467B1 (en) * 2012-02-03 2014-02-28 Bic Soc WRITING INSTRUMENT WITH RETRACTABLE POINT PROTECTIVE SLEEVE
CN105691045B (en) * 2016-04-27 2017-11-03 青岛点石文具用品有限公司 Pressed propelling pencil
CN208630156U (en) * 2018-06-28 2019-03-22 西京学院 A kind of activity penholder and propelling pencil
CN111619268B (en) * 2018-12-26 2021-01-22 杭州简弈科技有限公司 Self-torsion extension buckle pen
CN109605982B (en) * 2018-12-26 2020-08-11 温州市简系文具有限公司 Novel gesture pressing pen
CN109605985B (en) * 2018-12-26 2020-08-11 温州市简系文具有限公司 Pen

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