CN210363090U - Hand-held telescopic pen - Google Patents

Abstract

The utility model relates to a stationery especially relates to a handheld telescopic pen. A handheld telescopic pen comprises a first pen holder barrel part, a refill, a second pen holder barrel part, a connecting ring and a spring, wherein a body, the spring and a clamping part of the refill are positioned in the first pen holder barrel part and the second pen holder barrel part; the front part of the first pen rod barrel part is provided with a step, the front side of the step is provided with a reducing section which is externally connected with the rear part of the first pen rod barrel part, and the reducing section is sleeved in the connecting ring to be installed. The compression pen with the replaceable refill can be operated quickly by one hand without changing gestures when writing, and can be introduced into the locking groove, and the hidden state of the refill can be locked through manual rotation operation, so that the refill is prevented from being exposed due to external force compression.

Description

Hand-held telescopic pen

Technical Field

The utility model relates to stationery, in particular to a handheld telescopic pen.

Background

The writing tool is a necessary tool in daily work and life at present, wherein the most used pen is a 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.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can be when writing, the one hand and need not change the handheld flexible pen that the gesture just can be fast operated, when the refill is hidden, can also be through its hidden state of rotatory locking.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

the handheld telescopic pen comprises a first pen holder barrel part, a refill, a second pen holder barrel part, a connecting ring and a spring, wherein a body of the refill, the spring and a clamping part are all positioned in the first pen holder barrel part and the second pen holder barrel part; the front part of the first pen holder barrel part is provided with a step, the front side of the step is provided with a reducing section which is externally connected with the rear part of the first pen holder barrel part and is smaller than the rear part of the first pen holder barrel part, the first pen holder barrel part is positioned at the front side of the second pen holder barrel part, the second pen holder barrel part is sleeved at the rear part of the first pen holder barrel part, the front end part of the second pen holder barrel part is provided with a connecting port, and the connecting ring is movably sleeved at the reducing section of the first pen holder barrel part and is fixedly connected; the rear part of the first penholder barrel part is provided with a locking groove, and the inner wall of the second penholder barrel part is provided with a locking fastener corresponding to the locking groove; the locking grooves comprise a loading guide groove, a rotation stopping straight groove, a locking guide groove, a locking clamping groove and a compression straight groove; from the rear part to the front part of the first pen rod barrel part, the loading guide groove, the rotation stopping straight groove, the locking guide groove and the compression straight groove are sequentially communicated from the rear part to the front part; the locking clamping groove is in the circumferential direction and deviates from the rotation stopping straight groove and the compression straight groove; the locking clamping groove is respectively connected with the rotation stopping straight groove or the compression straight groove through the groove wall of the locking guide groove to form rotation guide of the locking clamping piece; the rear part of the first pen holder barrel part is sleeved with a clamping part, and the clamping part can be rotatably sleeved relative to the first pen holder barrel part; when the first pen holder barrel part and the second pen holder barrel part are sleeved, the clamping part is positioned in the second pen holder barrel part; a polygonal clamping groove is formed in the contact surface of the outer surface of the clamping part and the second pen holder barrel part, and a limiting stopper is further arranged inside the polygonal clamping groove; a sleeving distance which can enable the second pen holder barrel part and the first pen holder barrel part to move for a certain stroke is arranged between the step of the first pen holder barrel part and the connecting ring of the second pen holder barrel part; the inner side wall of the second pen holder barrel part is provided with a clamping part bulge, and the clamping part bulge is accommodated in the polygonal clamping groove; when the second pen holder barrel part and the first pen holder barrel part axially move mutually, the clamping piece protrusion can slide along the periphery of the limiting blocking piece in the polygonal clamping groove; the limiting stop piece is positioned in the middle area of the polygonal clamping groove, when the second pen holder barrel part and the first pen holder barrel part axially move mutually, the clamping piece protrusion is clamped into the limiting stop piece, the second pen holder barrel part and the first pen holder barrel part are in a first stage of being relatively close to the first pen holder barrel part in the axial direction, and the pen core is in an exposed state; when the clamping piece protrusion is separated from the limiting blocking piece and the second pen holder barrel part and the first pen holder barrel part are in a second stage of axial separation, the pen core is in a hidden state; the clamping piece protrusion is separated from the limiting blocking piece, the second pen holder barrel part and the first pen holder barrel part are in the second stage of axial separation, namely when the pen core is in a hidden state, the locking clamping piece is located in the rotation stopping straight groove.

Preferably, the loading guide groove is in a horn shape with a large back and a small front, the front end of the loading guide groove is communicated with the rotation-stopping straight groove, and the front end of the rotation-stopping straight groove is communicated with the locking guide groove; the locking guide groove is formed by a first guide inclined wall which is connected with the rotation-stopping straight groove and the locking clamping groove and a second guide inclined wall which is connected with the locking clamping groove and the rear end of the compression straight groove in an enclosing manner.

Preferably, each group of locking grooves comprises an installing guide groove, a rotation stopping straight groove, two locking guide grooves, two locking clamping grooves and a compression straight groove; the two locking clamping grooves are deviated and are respectively positioned at two sides of the rotation stopping straight groove and the compression straight groove, and a locking guide groove and a locking clamping groove are distributed at each side.

Preferably, the variable-diameter section comprises a variable-diameter section and a constant-diameter section, wherein the diameter of the variable-diameter section close to the step is larger than that of the variable-diameter section close to the constant-diameter section; the inner side of the connecting ring is provided with a damping soft ring matched with the gradual change diameter section; when the second pen holder barrel part and the first pen holder barrel part are in an axial relative away state, the gradually-changed diameter section at the front part of the first pen holder barrel part is clamped into the damping soft ring, and the damping soft ring is clamped into the gradually-changed diameter section, so that the spring is stretched, the pen core hiding process is smooth and silent, and the pen compression extending process is not abrupt.

Preferably, the inner side of the connecting ring is provided with a conical annular inclined wall matched with the tapered diameter section.

Preferably, the polygonal clamping groove is positioned on the outer side wall of the middle part of the clamping part, and the limiting blocking part is positioned in the middle area of the polygonal clamping groove, so that the bulge of the clamping part is accommodated in a guide groove structure between the polygonal inner wall of the polygonal clamping groove and the outer wall of the limiting blocking part to move;

the guide groove structure comprises a first guide slide way, a first guide slope, a second guide slide way, a second guide slope, a third guide slide way and a return guide slope, wherein the first guide slide way, the first guide slope, the second guide slide way, the second guide slope, the third guide slide way and the return guide slope are used for the protrusion movement of the clamping piece;

the first guide slide way, the first guide slope, the second guide slide way, the second guide slope, the third guide slide way and the return guide slope are sequentially connected end to end, and the tail end of the return guide slope is connected with the first guide slide way;

the limiting stopper comprises a first limiting slope corresponding to the second guide slide way and a blocking clamp position used for accommodating the bulge of the clamping piece and exposing the pen point of the pen core; the blocking clamping position axially corresponds to the middle part of the second guide slope;

the starting position of the first guide slideway of the polygonal clamping groove is provided with a loading guide groove communicated with the rear end of the clamping part, the loading guide groove is a horn-shaped guide groove with a large rear side and a small front side, and the blocking step is positioned at the inner end part of the front side of the horn-shaped guide groove.

Preferably, the rear end of the second penholder barrel part is provided with a cartridge tail mounting structure; the pen refill tail mounting structure comprises a threaded hole, a limiting threaded column and a rotating piece, the limiting threaded column is screwed in the threaded hole, and the rear end of the limiting threaded column is provided with an insertion hole which is inserted into the rotating piece; the outer periphery of the rotating piece is rotatably connected to the rear end of the second penholder barrel.

Preferably, the rear end of the clamping part is provided with an installation part with the outer diameter smaller than that of the clamping part body, the installation part comprises an annular installation groove and an installation convex ring, and the installation convex ring is positioned on the rear side of the installation groove; and the inner wall of the rear end of the first pen holder barrel part is provided with an annular mounting structure corresponding to the mounting groove.

Preferably, the rear outer side wall diameter of the first pen rod barrel part is the same as the outer side wall diameter of the clamping part.

Preferably, the pen also comprises a handheld soft rubber sleeve sleeved on the outer side of the front part of the second pen holder barrel part; the hand-held soft rubber sleeve consists of a hand-held section, a soft rubber section and a tiger mouth section in front and back.

Compared with the prior art, after the technical scheme is adopted, the method has the following beneficial effects:

1. the utility model provides a handheld telescopic pen, when writing, one hand and need not change the gesture just can fast operation, facilitates the use.

2. For the pen of traditional cap for a brush, the utility model provides a handheld flexible pen does not have separation parts such as cap for a brush, and simple structure has avoided the problem that the cap for a brush easily loses.

3. For traditional press the pen, the utility model provides a pressing of handheld flexible pen is that the pen-holder is anterior and the pen-holder rear portion, and the button is pressed to non-pressing, can avoid the maloperation. And when the pen core is hidden, the hidden state of the pen can be locked in a rotating mode through manual operation, so that the problem that articles in a briefcase cannot be dirtied or scratched even if the pressing pen is placed in the briefcase and touched by an external force is solved.

Drawings

Fig. 1 is a schematic perspective view of embodiment 1 of the present invention.

Fig. 2 is a schematic perspective sectional view of the embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view along line D-D in fig. 2 according to an embodiment of the present invention.

Fig. 4 is an enlarged schematic view of a portion B in fig. 3.

Fig. 5 is an exploded view of the embodiment of the present invention.

Fig. 6 is a schematic perspective view of a first pen barrel according to an embodiment of the present invention.

Fig. 7 is a schematic perspective view of the position-locking component in the embodiment of the present invention.

Fig. 8 is a schematic view of the protruding sliding path of the locking member and the fastener according to the embodiment of the present invention.

Fig. 9 is a structural view showing a cartridge projection and a locking cartridge in the cartridge barrel of the second cartridge.

Fig. 10 is a schematic perspective half-section view of an embodiment of the present invention.

Fig. 11 is an enlarged schematic view of a portion a in fig. 10.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

In the present application, the terms "a" and "an" in the claims and the description should be understood as meaning "one or more", that is, one element or a plurality of elements may be included in one embodiment or a plurality of elements may be included in another embodiment. The terms "a" and "an" and "the" and similar referents are to be construed to mean that the elements are limited to only one element or group, unless otherwise indicated in the disclosure.

The present invention will be further described with reference to the accompanying drawings.

Example 1:

the hand-held retractable pen shown in fig. 1 to 11 is composed of a first barrel 1, a refill 2, a second barrel 3, a connecting ring 6 and a spring 4. The body, the spring 4 and the clamping part 5 of the refill 2 are all positioned in the first pen holder barrel part 1 and the second pen holder barrel part 3, the spring 4 is wrapped outside the refill 2 close to the nib, and the front nib of the refill 2 can extend out of and expose out of the first pen holder barrel part 1.

The front part of the first barrel part 1 is provided with a step 1c, the front side of the step 1c is provided with a reducing section 10 externally connected with the rear part of the first barrel part 1, the first barrel part 1 is positioned at the front side of the second barrel part 3, the second barrel part 3 is sleeved at the rear part of the first barrel part 1, the front end part of the second barrel part 3 is provided with a connecting port, and the connecting ring 6 is movably sleeved at the reducing section 10 of the first barrel part 1 and is fixedly connected with the connecting port of the second barrel part 3. And the rear part of the first penholder barrel part 1 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 first penholder barrel part 1. The outer side wall of the rear part of the connecting ring 6 is provided with an external thread, and the connecting port is an internal thread and is screwed through the thread.

The clamping component 5 is integrally cylindrical, the rear end of the clamping component 5 is provided with a mounting part with the outer diameter smaller than that of the clamping component body, the mounting part comprises an annular mounting groove 58 and a mounting convex ring 59, and the mounting convex ring 59 is positioned on the rear side of the mounting groove 58; and an annular mounting structure corresponding to the mounting groove 12 is arranged on the inner wall of the rear end of the first penholder barrel part 1. The above-mentioned rotational sleeving manner is completed, so that the position-locking member 5 and the first pen rod barrel part 1 can rotate relatively.

When the first penholder barrel part 1 and the second penholder barrel part 3 are sleeved, the diameter of the outer side wall of the rear part of the first penholder barrel part 1 is the same as that of the outer side wall of the clamping part 5. The whole blocking part 5 is positioned in the second penholder barrel part 3. The outer surface of the blocking part 5 is provided with a polygonal blocking groove 51 on the contact surface with the second penholder barrel part 3. The polygonal slot 51 is also provided with a limit stop 52 inside. The outer diameter of the first pen rod barrel part 1 is smaller than that of the front part of the second pen rod barrel part 3, the front part of the second pen rod barrel part 3 is sleeved in the first pen rod barrel part 1 as a sleeve, and a sleeving distance 11 which can enable the second pen rod barrel part 3 and the first pen rod barrel part 1 to move for a certain stroke is arranged between the step of the first pen rod barrel part 1 and the connecting ring 6 of the second pen rod barrel part 3. The engaging space 11 allows the first barrel part 1 and the second barrel part 3 to have a telescopic pressing stroke of axial relative movement.

The inner side wall of the second penholder barrel part 3 is provided with a clamping piece bulge 31, and the clamping piece bulge 31 is accommodated in the polygonal clamping groove 51. When the second barrel part 3 and the first barrel part 1 move axially, the clamping piece protrusion 31 can slide along the periphery of the limit stop piece 52 in the polygonal clamping groove 51.

The utility model discloses the protruding 31 cooperation mode of polygon draw-in groove 51, spacing shelves piece 52 and fastener that covers as follows: the limiting stop piece 52 is located in the middle area of the polygonal clamping groove 51, when the second pen holder barrel part 3 and the first pen holder barrel part 1 move axially mutually, the clamping piece protrusion 31 is clamped into the limiting stop piece 52, the second pen holder barrel part 3 and the first pen holder barrel part 1 are in a first stage of being relatively close to each other axially, and the pen core 2 is in an exposed state. When the clamping piece protrusion 31 is separated from the limiting stop piece 52 and the second pen holder barrel part 3 and the first pen holder barrel part 1 are in the second stage of axial separation, the pen core 2 is in a hidden state. As long as the limiting stopper 52 is located in the polygonal slot 51, the mode of the fastener protrusion 31 having the above two states is the scope covered by the present invention. For those skilled in the art, the first stage of the second barrel part 3 and the first barrel part 1 being relatively close to each other in the axial direction is realized, the catching protrusion 31 is caught in the limiting stopper 52, and the second stage of the second barrel part 3 and the first barrel part 1 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 structure of the first polygonal slot 51, the limiting stop piece 52 and the clamping piece protrusion 31 and the specific implementation mode are as follows:

the polygonal clamping groove 51 is positioned on the outer side wall of the middle part of the clamping part 5, and the limiting blocking piece 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 blocking piece 52 to move.

The guide groove structure comprises a first guide slide way 51a, a first guide slope 51b, a second guide slide way 51c, a second guide slope 51d, a third guide slide way 51e and a return guide slope 51f, wherein the first guide slide way is used for moving the clamping piece protrusion 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 limiting stopper 52 comprises a first limiting slope 52a corresponding to the second guide slideway 51c and a blocking detent 52b used for accommodating the clip piece bulge 31 and exposing the pen point of the pen core; the blocking detent 52b axially corresponds to the middle of the second guide ramp 51 d.

As shown by the dotted line in fig. 8, when the second barrel portion 3 is compressed relative to the locking member 5, the locking member 31 moves along the first guide track 51a from the start position to the end along the first guide slope 51b, and at this time, the locking member 5 rotates until the locking member 31 is located at the end of the first guide slope 51b, and the second barrel portion 3 is compressed relative to the locking member 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 second barrel 3 is compressed for the second time relative to the catching part 5, the catching part 5 rotates to move the catching protrusion 31 along the second guiding slope. The clamping part 5 rebounds after the hand is released, and the clamping part bulge 31 moves along the third guide slide way until the clamping part 5 rotates around under the action of the return guide slope; 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 acted by a single hand to extrude the first penholder barrel part 1 and the second penholder barrel part 3 to move relatively, and the force in the return stage is all acted 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 blocking step similar to a "7" shape, a connection position of the first limiting member 521 and the second limiting member 522 forms an acute angle, 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 rear part of the first pen rod barrel part 1 is provided with a locking groove, and the inner wall of the second pen rod barrel part 3 is provided with a locking clamping piece 33 corresponding to the locking groove. Wherein the locking grooves include a fitting guide groove 14, a rotation stop straight groove 15, a locking guide groove 15a, a locking catching groove 16, and a compression straight groove 17. The loading guide groove 14, the rotation stopping straight groove 15, the locking guide groove and the compression straight groove 17 are communicated in sequence from the rear to the front of the first penholder barrel part 1; the locking clamping groove 16 is offset from the rotation stopping straight groove 15 and the compression straight groove 17 in the circumferential direction; the locking groove 16 is connected to the rotation stopping straight groove 15 or the compression straight groove 17 through groove walls of the locking guide groove 15a, respectively, to form a rotational guide of the locking dog 33.

Furthermore, the loading guide groove 14 is in a horn shape with a large back and a small front, the front end of the loading guide groove 14 is communicated with the rotation stopping straight groove 15, and the front end of the rotation stopping straight groove 15 is communicated with the locking guide groove 15 a; the locking guide groove 15a is formed by a first guide inclined wall 150 connecting the rotation stop straight groove 15 and the locking groove 16 and a second guide inclined wall 151 connecting the locking groove 16 and the rear end of the compression straight groove 17.

More specifically, each set of locking grooves includes one fitting guide groove 14, one rotation stop straight groove 15, two locking guide grooves 15a, two locking catching grooves 16 and one compression straight groove 17; the two locking notches are deviated and divided at both sides of the rotation-stopping straight groove 15 and the compression straight groove 17, and a locking guide groove 15a and a locking notch 16 are distributed at each side.

When the clamping piece protrusion 31 is separated from the limiting stop piece 52 and the second barrel part 3 and the first barrel part 1 are in the second stage of axial separation, namely the pen core 2 is in a hidden state, the locking clamping piece 33 is just positioned in the rotation stopping straight groove 15.

The purpose of locking groove is in order to be in the hidden state at the refill 2, its refill 2 that exposes by external force extrusion, prevents that it from in the schoolbag, in the briefcase because of being extruded draw injury or fish tail package inner wall. Specifically, it is made such that the locking seizing piece 33 leaves the rotation-stopping straight groove 15 into the locking guide groove 15a by the user slightly pressing the first barrel part 1. In the re-locking guide groove 15a, regardless of the rotational operation, the locking dog 33 is guided into the locking catch groove 16 by the first guide inclined wall 150 or the second guide inclined wall 151. After entering the locking clamping groove 16, the pen holder is in a clamping state, no rotating force is applied, and generally, the pen holder is not only in disengagement, so that the telescopic length between the second pen holder barrel part 3 and the first pen holder barrel part 1 is locked by the mechanical axial direction, the uncertain state of the elasticity of the spring 4 is overcome, the structure is changed only, the manual operation is simple, the cost of parts and materials is not increased, and the pen holder has an intentional effect.

The variable diameter section 10 comprises a variable diameter section 1a and a constant diameter section 1b which are close to the step, and the diameter of the variable diameter section 1a close to the step is larger than that of the constant diameter section 1 b; a damping soft ring 62 matched with the gradual change section is arranged on the inner side of the connecting ring 6; when the second penholder barrel part 3 and the first penholder barrel part 1 are in an axial relative far away state, namely when the refill is hidden, the gradual change diameter section 1a at the front part of the first penholder barrel part 1 is clamped into the damping soft ring 62, and the damping soft ring is clamped, so that the spring is stretched, the refill hiding process is smooth and silent, and the retraction process of the compression pen is not so abrupt. Further, a conical annular inclined wall 61 matched with the tapered section 1a is arranged on the inner side of the connecting ring 6 and matched with the tapered section.

The rear end of the second penholder barrel 3 is provided with a cartridge tail mounting structure 32. The pen core tail mounting structure 32 comprises a threaded hole 320, a limit threaded column 322 and a rotating piece 321, the limit threaded column 322 is screwed in the threaded hole 320 in a threaded manner, and the rear end of the limit threaded column 322 is provided with an insertion hole 3221 which is inserted into the rotating piece 321; the rotary member 321 is rotatably connected to the rear end of the second barrel 3 at its outer periphery. The back of the rotating element 321 can be an eraser, and the peripheral side of the front part of the selecting element can be rotatably connected with an arc-shaped convex ring at the inner side of the back end of the second penholder barrel part 3 through an arc-shaped annular groove. The front part of the rotating piece 321 extends out of a plug rod 3211 with a polygonal section; the insertion hole 3221 is a polygonal insertion hole matched with the insertion hole, and the insertion hole and the polygonal insertion hole can be matched with each other by driving the rotating member 321 to change the position of the limiting threaded column 322, so as to adapt to the strength of the pen cores 2 with different lengths or the adjusting spring 4.

Remaining Structure example 1 was repeated

In order to improve the hand feeling, the pens according to the embodiments 1 and 2 may be provided with the hand-held soft rubber cap 30 which is sleeved on the outer side of the front part of the second barrel part 3. The hand-held soft rubber sleeve 30 is composed of a hand-held section 3a, a soft rubber section 3b and a tiger mouth section 3c in front and back respectively, and friction and hand feeling are increased.

The above description is a preferred embodiment of the present invention, and a person skilled in the art can make several modifications and improvements without departing from the principles of the present invention, and these should also be regarded as the protection scope of the present invention.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. Handheld flexible pen, its characterized in that: the pen core comprises a first pen holder barrel part (1), a pen core (2), a second pen holder barrel part (3), a connecting ring (6) and a spring (4), wherein a body of the pen core (2), the spring (4) and a clamping component (5) are all positioned in the first pen holder barrel part (1) and the second pen holder barrel part (3), the spring (4) is wrapped outside the pen core (2) close to a pen point, and the pen point at the front part of the pen core (2) can extend out of and expose out of the first pen holder barrel part (1);

the front part of the first pen holder barrel part (1) is provided with a step (1 c), the front side of the step (1 c) is provided with a reducing section (10) which is externally connected and smaller than the rear part of the first pen holder barrel part (1), the first pen holder barrel part (1) is positioned at the front side of the second pen holder barrel part (3), the second pen holder barrel part (3) is sleeved at the rear part of the first pen holder barrel part (1), the front end part of the second pen holder barrel part (3) is provided with a connecting port, and the connecting ring (6) is movably sleeved at the reducing section (10) of the first pen holder barrel part (1) and is fixedly connected with the connecting port of the second pen holder barrel part (;

a locking groove is arranged at the rear part of the first pen holder barrel part (1), and a locking clamping piece (33) is arranged on the inner wall of the second pen holder barrel part (3) corresponding to the locking groove; the locking grooves comprise a loading guide groove (14), a rotation stopping straight groove (15), a locking guide groove (15 a), a locking clamping groove (16) and a compression straight groove (17); the loading guide groove (14), the rotation stopping straight groove (15), the locking guide groove and the compression straight groove (17) are communicated in sequence from the rear to the front of the first penholder barrel part (1);

the locking clamping groove (16) is deviated from the rotation stopping straight groove (15) and the compression straight groove (17) in the circumferential direction; the locking clamping groove (16) is respectively connected with the rotation stopping straight groove (15) or the compression straight groove (17) through the groove wall of the locking guide groove (15 a) to form the rotation guide of the locking clamping piece (33);

the rear part of the first pen holder barrel part (1) is sleeved with a clamping part (5), and the clamping part (5) can be rotatably sleeved relative to the first pen holder barrel part (1);

when the first penholder barrel part (1) and the second penholder barrel part (3) are sleeved, the clamping part (5) is positioned in the second penholder barrel part (3); a polygonal clamping groove (51) is formed in the contact surface of the outer surface of the clamping component (5) and the second pen holder barrel part (3), and a limiting stop piece (52) is further arranged inside the polygonal clamping groove (51);

a sleeving distance (11) which can enable the second pen holder barrel part (3) and the first pen holder barrel part (1) to move for a certain stroke is arranged between the step of the first pen holder barrel part (1) and the connecting ring (6) of the second pen holder barrel part (3);

the inner side wall of the second penholder barrel part (3) is provided with a clamping piece bulge (31), and the clamping piece bulge (31) is accommodated in the polygonal clamping groove (51); when the second penholder barrel part (3) and the first penholder barrel part (1) move axially, the clamping piece protrusion (31) can slide along the periphery of the limiting blocking piece (52) in the polygonal clamping groove (51);

the limiting stop piece (52) is located in the middle area of the polygonal clamping groove (51), when the second pen holder barrel part (3) and the first pen holder barrel part (1) axially move mutually, the clamping piece protrusion (31) is clamped into the limiting stop piece (52), the second pen holder barrel part (3) and the first pen holder barrel part (1) 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 blocking piece (52) and the second pen holder barrel part (3) and the first pen holder barrel part (1) are in the second stage of axial separation, the pen core (2) is in a hidden state;

the clamping piece protrusion (31) is separated from the limiting blocking piece (52), the second pen holder barrel part (3) and the first pen holder barrel part (1) are in the second stage of axial separation, namely when the pen core (2) is in a hidden state, the locking clamping piece (33) is located in the rotation stopping straight groove (15).

2. The handheld retractable pen of claim 1, wherein: the loading guide groove (14) is in a horn shape with a large back and a small front, the front end of the loading guide groove (14) is communicated with the rotation stopping straight groove (15), and the front end of the rotation stopping straight groove (15) is communicated with the locking guide groove (15 a); the locking guide groove (15 a) is formed by enclosing a first guide inclined wall which is connected with the rotation-stopping straight groove (15) and the locking clamping groove (16) and a second guide inclined wall which is connected with the locking clamping groove (16) and the rear end of the compression straight groove (17).

3. The handheld retractable pen of claim 1, wherein: the variable-diameter section (10) comprises a variable-diameter section (1 a) close to the step and a constant-diameter section (1 b), and the diameter of the variable-diameter section (1 a) close to the step is larger than that of the constant-diameter section (1 b); a damping soft ring (62) matched with the gradual change diameter section is arranged on the inner side of the connecting ring (6); when the second penholder barrel (3) and the first penholder barrel (1) are in a relatively axial far-away state, the gradual-change diameter section (1 a) at the front part of the first penholder barrel (1) is clamped into the damping soft ring (62).

4. The handheld retractable pen of claim 1, wherein: the polygonal clamping groove (51) is positioned on the outer side wall of the middle part of the clamping part (5), and the limiting blocking piece (52) is positioned in the middle area of the polygonal clamping groove (51), so that the clamping piece bulge (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 blocking piece (52) to move;

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 bulge (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);

the starting position of a first guide slide way (51 a) of the polygonal clamping groove (51) is provided with a loading guide groove (526) communicated with the rear end of the clamping part (5), 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.

5. The handheld retractable pen of claim 1, wherein: a cartridge tail mounting structure (32) is arranged at the rear end of the second pen holder barrel part (3); the pen core tail mounting structure (32) comprises a threaded hole (320), a limiting threaded column (322) and a rotating piece (321), the limiting threaded column (322) is screwed in the threaded hole (320), and the rear end of the limiting threaded column (322) is provided with a jack (3221) which is plugged with the rotating piece (321); the outer periphery of the rotating piece (321) is rotatably connected with the rear end of the second penholder barrel part (3).

Images