CN110014771B - A twist-locking pen - Google Patents

Abstract

The invention discloses a twist-locking pen which can be operated quickly with one hand and without changing gestures when writing. It includes the front of the pen, the refill, the back of the pen and the spring. The body of the refill is located in the front of the pen and the back of the pen. The spring is wrapped around the outside of the pen near the tip of the pen through the axial movement of the front of the pen and the back of the pen. The front tip of the pen core can be exposed or retracted at the front of the pen holder, so as to achieve two states of use or non-use. The problem that the pen cap with the pen cap is easy to lose and the problem that the traditional pressing pen is easy to operate by mistake is solved.

Description

A twist-locking pen

technical field

The present invention relates to a kind of stationery, in particular to a twist-locking pen.

Background technique

Writing tools are an indispensable tool in daily work and life. Among them, the most used one is the press pen, which can be operated with one hand and is convenient to use. However, the structure of the existing pressing pen is relatively complicated. In the process of writing, it is necessary to change the gesture of holding the pen before pressing the end of the pen to control the exposure and retraction of the pen core, which sometimes brings inconvenience to the user and cannot quickly switch the pen. status.

At the same time, due to technical bias, the existing pressing pen is difficult to improve, and the technicians are tired of improving. In fact, the structure of the existing pressing pen is unstable, the accessories are easily lost after disassembly, and the assembly is also very difficult. Not only that, but the large number of components also leads to particularly high manufacturing costs. For this reason, the market share of pens with caps is still very high due to their low cost, and the loss of the caps of pens with caps has become a big trouble for users.

In addition, when we put the press pen into the school bag, briefcase and pocket, the press button will inevitably be touched, which will cause the pen core to expose the paper in the briefcase, the cloth in the bag and the pocket of the clothes and pants, causing trouble.

SUMMARY OF THE INVENTION

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.

In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solutions: a torsion latching pen, comprising a front part of the pen holder, a refill, a rear part of the pen holder and a spring, the body of the refill is located in the front part of the pen holder and the back part of the pen holder, and the spring wraps On the outside of the refill near the tip, the front tip of the refill can protrude and be exposed at the front of the barrel;

The rear part of the front part of the pen holder is sleeved with a latching part, and the latching part is rotatably sleeved relative to the front part of the pen holder;

After the front part of the pen holder and the rear part of the pen holder are sleeved, the latching part is located in the back part of the pen holder; a polygonal latching slot is provided on the contact surface between the outer surface of the latching part and the rear part of the pen holder, and the interior of the polygonal latching slot is also provided with a polygonal latching slot. limited stopper;

The front part of the pen holder and the back part of the pen holder are provided with a socket joint distance that can make the back part of the pen holder and the front part of the pen holder move with each other for a certain stroke;

The inner side wall of the rear part of the pen holder is provided with a clip protrusion, and the clip protrusion is accommodated in the polygonal slot; when the rear part of the pen holder and the front part of the pen holder move axially with each other, the clip projection can be placed in the position. The polygon slot slides along the periphery of the limit stop;

The limit stopper is located in the middle area of the polygonal card slot. When the rear part of the pen holder and the front part of the pen holder move axially with each other, the protrusion of the holder is snapped into the limit stopper, and the rear part of the pen holder and the front part of the pen holder are in the axial direction. Relatively close to the first stage, the refill is exposed;

When the bulge of the clamping piece is separated from the limiting block and the rear part of the pen holder and the front part of the pen holder are in the second stage of being axially away from each other, the pen core is in a hidden state.

Preferably, the rear end of the front part of the pen holder is provided with a mounting part whose outer diameter is smaller than that of the main body, the mounting part comprises an annular mounting groove and a mounting convex ring, and the mounting convex ring is located at the rear side of the mounting groove; An annular mounting rib corresponding to the mounting groove is arranged on the inner wall. After the front part of the pen holder is sleeved and installed with the clamping part, the annular installation ridge is embedded in the installation groove.

Preferably, the diameter of the rear outer side wall of the front part of the pen barrel is the same as the diameter of the outer side wall of the locking part. The inner diameter of the rear part of the pen barrel is made consistent, and the manufacturing difficulty and cost are reduced.

Preferably, the polygonal card slot is located on the middle outer side wall of the locking member, and the limit stopper is located in the middle area of the polygonal card slot, so that the protrusion of the card member is accommodated in the guide between the polygonal inner wall of the polygonal card slot and the outer wall of the limit stopper. Activities in the groove structure;

The guide groove structure includes a first guide slideway, a first guide slope, a second guide slideway, a second guide slope, a third guide slideway and a return guide slope for the protruding movement of the clip;

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 slide connected;

The limit stopper includes a first limit slope corresponding to the second guide slide, a blocking position for accommodating the protrusion of the clip and making the pen refill and nib exposed; the blocking position axially corresponds to the second guide slope middle.

When the rear part of the pen holder and the front part of the pen holder move axially close to each other, the latching protrusion slides along the periphery of the limit stop in the polygonal slot. After sliding through the first guide slide and the second guide slide, the latch The protrusion will be clamped on the blocking position. At this time, the pen tip is exposed and the pen is in use; when the rear of the pen and the front of the pen move axially away from each other, the protrusion will move along the limit stop in the polygon slot. After sliding through the third guide slide and the fourth guide slide, the locking protrusion will return to the starting position of the first guide slide.

Preferably, the initial position of the first guide slideway of the polygonal card slot is provided with a loading guide groove communicating with the rear end of the locking member, and a blocking step is provided on the loading guide groove. The design of the guide groove is designed to facilitate the assembly of the clamping part and the front of the pen barrel, and the blocking step can increase the assembly feel, and at the same time prevent the protrusion of the clamping piece from disengaging from the polygonal groove during the relative movement of the front of the pen barrel and the rear of the pen barrel. .

Preferably, the blocking step is a step with slopes on both sides; the clip protrusion is a convex portion with slopes on both sides. The sloped steps allow for easy assembly.

Preferably, the locking member is in the shape of a cylinder 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 arranging the deformation opening is to expand the opening, so as to facilitate the assembly of the clamping part into the front part of the pen barrel.

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 clip protrusion are located on the same axis. The bulge of the clip is located on the inner wall of the rear of the pen barrel, which is not easy to see during assembly. A first positioning mark groove is arranged on the rear of the pen barrel, which can identify the position of the bulge of the clip and facilitate assembly.

Preferably, the limiting block is composed of a first block and a second block that are close to each other, and the first limiting slope corresponding to the second guide slide is located on the lower side of the first block; it is used for accommodating the card The blocking position where the piece protrudes and exposes the tip of the refill is a gap formed between the first stopper and the second stopper; the upper side of the first stopper and the upper side of the second stopper are respectively aligned with the polygonal The return guide slopes on the card slots correspond to and leave return guide slides in between.

The above-mentioned preferred manner greatly reduces the axial length of the polygonal clamping groove and reduces the axial length of the clamping part.

Preferably, a soft dust-proof cover is provided on the sleeve joint spacer; and two sides of the front part of the pen holder are provided with a clamping friction part.

Compared with the prior art, after adopting the above-mentioned technical scheme, it has the following beneficial effects:

1. The twist-locking pen in the present invention can be quickly operated with one hand without changing gestures when writing, which is convenient to use.

2. Compared with a pen with a traditional cap, 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.

3. Compared with the traditional pressing pen, the pressing parts of the twisting and locking pen in the present invention are the front part of the pen holder and the back part of the pen holder, instead of pressing the button, which can avoid misoperation and solve the problem of mis-touching the pressing pen in the bag. The problem of soiling the contents of the briefcase.

Description of drawings

FIG. 1 is a schematic three-dimensional structure diagram of Embodiment 1 of the present invention.

FIG. 2 is a schematic three-dimensional cross-sectional view of Embodiment 1 of the present invention.

FIG. 3 is an exploded view of Embodiment 1 of the present invention without a refill and a spring.

FIG. 4 is a cross-sectional view of the rear of the pen according to Embodiment 1 of the present invention.

FIG. 5 is a schematic diagram of the clamping part in Embodiment 1 of the present invention.

FIG. 6 is a partial enlarged schematic view of the position A in FIG. 4 .

FIG. 7 is a schematic perspective view of Embodiment 2 of the present invention.

FIG. 8 is an exploded view of Embodiment 2 of the present invention without the refill and the spring.

FIG. 9 is a schematic diagram of a latching 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.

Detailed ways

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

It should be understood by those skilled in the art that in the disclosure of the present invention, the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus the above terms should not be construed as limiting the invention.

In the present invention, the term "a" in the claims and the description should be understood as "one or more", that is, in one embodiment, the number of an element may be one, and in another embodiment, the number of the element may be one Can be multiple. Unless it is clearly indicated in the disclosure of the present invention that the number of the element is only one, the term "a" should not be construed as unique or single, and the term "a" should not be construed as a limitation on the number.

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

Example 1:

As shown in Figs. 1 to 6, a torsion locking pen is composed of a front part 1 of a pen rod, a pen core 2, a rear part 3 of the pen rod and a spring 4. The main body of the refill 2 is located in the front part 1 of the pen holder and the rear part 3 of the pen holder. The spring 4 is wrapped around the outside of the refill 2 near the tip of the pen.

Wherein, the rear part of the front part 1 of the pen holder is provided with an installation part, and a latching part 5 is sleeved through the installation part, and the latching part 5 is rotatably sleeved relative to the front part 1 of the pen holder. The installation part is located at the rear end of the front part 1 of the pen barrel and has a smaller outer diameter than the main body. The installation part includes an annular installation groove 12 and an installation convex ring 13 .

The above-mentioned locking member 5 is in the shape of a cylinder 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 second installation groove 53b corresponding to the installation convex ring 13 on the front part 1, the annular installation convex rib 53a is located in the front part of the clamping part 5, and is fitted into the installation groove 12 of the pen front part 1 through the annular installation convex 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 socket connection, so that the locking member 5 and the front part 1 of the pen holder can rotate relative to each other.

When the front part 1 of the pen holder and the rear part 3 of the pen holder are sleeved together, the diameter of the outer side wall of the rear part of the front part 1 of the pen holder is the same as the diameter of the outer side wall of the locking part 5 . The locking part 5 is located in the rear part 3 of the pen holder as a whole; a polygonal slot 51 is provided on the contact surface between the outer surface of the locking part 5 and the rear part 3 of the pen holder. A limiting block 52 is also provided inside the polygonal slot 51 . The outer diameter of the front part 1 of the above-mentioned pen holder is smaller than the front part of the rear part 3 of the pen holder, and the front part of the rear part 3 of the pen holder is put into the front part 1 of the pen holder as a sleeve jacket. The rear part 3 and the front part 1 of the pen holder move with each other by a certain stroke of the socket distance 11, and the socket distance 11 makes the front part 1 of the pen holder and the rear part 3 of the pen holder have a pressing stroke of relative axial movement.

The inner side wall of the rear part 3 of the pen holder is provided with a clamping protrusion 31 , and the clamping protrusion 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 relative to each other, the clip protrusion 31 can slide in the polygonal slot 51 along the periphery of the limiting block 52 .

The polygonal slot 51, the limit stop 52 and the clip protrusion 31 covered by the present invention are matched in the following manner: the limit stop 52 is located in the middle area of the polygon slot 51, the rear part 3 of the pen holder and the front part 1 of the pen holder are pivoted When moving toward each other, the clip protrusion 31 is snapped into the limit stop 52, the rear part 3 of the pen holder and the front part 1 of the pen holder are in the first stage relatively axially close to each other, and the refill 2 is in an exposed state. When the clip protrusion 31 is separated from the limiting block 52 and the rear part 3 of the pen holder is in the second stage of axially moving away from the front part 1 of the pen holder, the refill 2 is in a hidden state. As long as the limiting block 52 is located in the polygonal card slot 51 , the manner in which the card protrusion 31 has the above two states is within the scope of the present invention. For those skilled in the art, when the rear part 3 of the pen holder and the front part 1 of the pen holder are relatively close to the first stage in the axial direction, the clip protrusion 31 is clamped into the limit stop 52, and the rear part 3 of the pen holder and the front part of the pen holder 1. When in the second stage of axial distance, the clip protrusion 31 can be separated from the limit stop 52 and return to the original position. This implementation should be a variety of implementations that can be reasonably derived by those skilled in the art according to the above description. Two specific structures are exemplified below.

The structure and specific implementation of the first polygonal card slot 51, the limiting block 52 and the card protrusion 31:

The above-mentioned polygonal card slot 51 is located on the middle outer side wall of the card position member 5 , and the limit stopper 52 is located in the middle area of the polygonal card slot 51 , so that the clip protrusion 31 is accommodated in the polygonal inner wall of the polygonal card slot 51 and the limit stopper 52 The guide groove structure between the outer walls moves within the structure.

The guide groove structure includes a first guide slideway 51a, a first guide slope 51b, a second guide slideway 51c, a second guide slope 51d, a third guide slideway 51e and a return guide for the clip protrusion 31 to move. slope 51f;

The first guide slideway 51a, the first guide slope 51b, the second guide slideway 51c, the second guide slope 51d, the third guide slideway 51e and the return guide slope 51f are connected to each other in the first place, and the end of the return guide slope 51f is connected to the The first guide slides 51a are connected to each other.

The limit stopper 52 includes a first limit slope 52a corresponding to the second guide slideway 51c, a blocking stopper 52b for accommodating the latching protrusion 31 and exposing the pen refill and tip; the blocking stopper 52b axially corresponds to The middle of the second guide slope 51d.

As shown by the dotted line in FIG. 5 , when the rear part 3 of the pen barrel is compressed relative to the latching member 5, the latching protrusion 31 moves along the first guide slideway 51a from the initial position until it reaches the bottom along the first guide slope 51b. At this time, The latching member 5 is rotated until the latching protrusion 31 is located at the end of the first guide slope 51b, and the rear portion 3 of the pen barrel is compressed relative to the latching member 5 to the maximum stroke for the first time. After releasing the hand, it rebounds, and the clip protrusion 31 retreats along the second guide slideway 51c. Under the action of the first limiting slope 52a, the clip part 5 rotates again, so that the clip protrusion 31 is locked into the blocking clip 52b. The refill tip is stably exposed in place. When the rear part 3 of the pen barrel is compressed relative to the latching member 5 for the second time, that is, the latching member 5 rotates to make the latching protrusion 31 move along the second guide slope; The slideway moves until under the action of the returning guide slope, the clamping part 5 rotates; the protrusion 31 of the clamping part returns to the starting position, and the refill 2 is in a hidden state. The force of the above-mentioned carrying stage relies on the relative movement of the front part 1 of the pen barrel and the rear part 3 of the pen barrel by pressing with one hand, and the force of the above-mentioned returning stage is completed by the elastic force of the spring 4 .

Further specific to the shape and structural performance, the above-mentioned limit stopper 52 is composed of a first limiter 521 and a second limiter 522, and the first limiter 521 and the second limiter 522 are both parallel on both sides. The strip-shaped protrusions are formed of a “7”-shaped blocking step at one end, and an acute angle is formed where the first limiting member 521 and the second limiting member 522 are connected, and the acute angle accommodating area is the above-mentioned blocking position 52b . The polygon slot 51 is a polygon slot formed by overlapping two parallelograms with different sizes and the extension lines of the two adjacent sides overlapping respectively.

Example 2:

For the twist-locking pens in Embodiments 1 and 2, in order to hold the pen comfortably and beautifully during writing, a soft dust cover 11a can be provided on the outer sleeve of the socket spacing 11, and the two sides of the front of the pen holder are provided. There is a clamping friction part 1a. The positional relationship and connection relationship between the refill and the spring in Embodiment 1 and Embodiment 2 are shown in FIG. 10 .

As shown in Figs. 7-10, the twist-locking pen in Embodiment 2 is only an improvement to another solution of the locking member 5 compared to Embodiment 1. The limiting stopper 52 is composed of first A stopper 524 and a second stopper 525 are formed. The first limiting slope 52a corresponding to the second guide slide 51c is located on the lower side of the first stopper 524; The blocking position 52b exposed by 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 slopes 51f on 51 correspond to and leave return guide slides 51h therebetween. This design makes the distance between the upper side of the limiting stopper and the upper side of the polygonal clamping slot smaller, so that the overall axial dimension of the clamping part 5 can be shortened.

The above are the preferred embodiments of the present invention. For those of ordinary skill in the art, several modifications and improvements can be made without departing from the principles of the present invention, which should also be regarded as the protection scope of the present invention.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. A twist-locking pen, comprising a front part of the pen (1), a refill (2), a rear part of the pen (3) and a spring (4), wherein the body of the refill (2) is located at the front part (1) of the pen and the spring (4). In the rear part (3) of the pen barrel, the spring (4) is wrapped around the outside of the pen core (2) near the tip of the pen, and the front tip of the pen core (2) can be extended and exposed at the front part (1) of the pen barrel; it is characterized in that : The rear part of the front part (1) of the pen holder is sleeved with a latching part (5), and the latching part (5) is rotatably sleeved relative to the front part (1) of the pen holder; when the front part (1) of the pen holder and the After the rear part (3) of the pen holder is sleeved, the latching part (5) is located in the rear part (3) of the pen holder; a polygon is provided on the contact surface between the outer surface of the latching part (5) and the rear part (3) of the pen holder A card slot (51), the polygonal card slot (51) is also provided with a limit stop (52); the front part (1) of the pen holder and the rear part (3) of the pen holder are sleeved with a rear part of the pen holder (3) A socketing distance (11) for a certain stroke of mutual movement with the front part of the pen holder (1); the inner side wall of the rear part of the pen holder (3) is provided with a clip protrusion (31), and the clip projection (31) ) is accommodated in the polygonal slot (51); when the rear part (3) of the pen holder (3) and the front part (1) of the pen holder move axially with each other, the clip protrusion (31) can be positioned along the polygonal slot (51) along the The limit stopper (52) slides around; the limit stopper (52) is located in the middle area of the polygonal slot (51). The clip protrusion (31) is snapped into the limit stopper (52), the rear part (3) of the pen holder (3) and the front part (1) of the pen holder are in the first stage relatively close to each other in the axial direction, and the refill (2) is in an exposed state; The clip protrusion (31) is separated from the limiting block (52), the rear part (3) of the pen holder (3) and the front part (1) of the pen holder are in the second stage of axial separation, and the pen core (2) is in a hidden state. 2 . A twist-locking pen according to claim 1 , wherein the rear end of the front part ( 1 ) of the pen holder is provided with a mounting part whose outer diameter is smaller than that of the main body, and the mounting part comprises an annular The installation groove (12) and the installation convex ring (13), the installation convex ring (13) is located on the rear side of the installation groove (12); the inner wall of the clamping part (5) is provided with a corresponding installation groove (12) Annular mounting rib (53a). 3 . A twist-locking pen according to claim 1 or 2 , wherein the diameter of the rear outer wall of the front part ( 1 ) of the pen holder is the same as the diameter of the outer wall of the locking part ( 5 ). 4 . 4. A twist-locking pen according to claim 1, characterized in that: the polygonal card slot (51) is located on the outer side wall of the middle part of the locking member (5), and the limit stopper (52) is located in the polygonal card slot (51) The middle area, so that the clip protrusion (31) is accommodated in the guide groove structure between the polygonal inner wall of the polygonal slot (51) and the outer wall of the limit stop (52); The first guide slideway (51a), the first guide slope (51b), the second guide slideway (51c), the second guide slope (51d), the third guide slideway ( 51e) and return guide ramp (51f); first guide ramp (51a), first guide ramp (51b), second guide ramp (51c), second guide ramp (51d), third guide ramp (51e) and the return guide slope (51f) are connected end to end in sequence, and the end of the return guide slope (51f) is connected to the first guide slideway (51a); the limit stopper (52) includes a second guide The first limit slope (52a) corresponding to the slideway (51c), the blocking position (52b) for accommodating the protrusion (31) of the clip and exposing the pen refill and the tip of the pen; the blocking position (52b) axially corresponds to The middle of the second guide slope (51d). 5 . A twist-locking pen according to claim 4 , characterized in that: the initial position of the first guide slide ( 51 a ) of the polygonal slot ( 51 ) is provided with the locking member (5) The loading guide groove connected to the rear end is provided with a blocking step (523). 6 . The twist-locking pen according to claim 5 , wherein the blocking step ( 523 ) is a step with a slope on both sides; the clip protrusion ( 31 ) is a step with a slope on both sides. 7 . The convex part of the slope. 7 . A twist-locking pen according to claim 2 , wherein the locking member ( 5 ) is in the shape of a cylinder as a whole, and the front end of the locking member ( 5 ) is provided with a plurality of axial directions along the cylindrical shape. 8 . Deep deformation openings, each of which vertically penetrates the annular mounting rib (53a). 8 . The twist-locking pen according to claim 2 , characterized in that: the front end of the rear part ( 3 ) of the pen holder is provided with a first positioning mark groove ( 32 ), and the first positioning mark groove ( 32 ). ) and the clip protrusion (31) are located on the same axis. 9 . A twist-locking pen according to claim 4 , characterized in that: the limiting block ( 52 ) is composed of a first block and a second block that are close to each other, and the second guide slide The corresponding first limit slope (52a) of (51c) is located on the lower side of the first stopper (524); the blocking stopper (52b) for accommodating the clip protrusion (31) and exposing the pen refill and tip is located on the lower side of the first stopper (524). The 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 (525). The return guide slope (51f) on 51) corresponds to and leaves a return guide slide (51h) in between. 10 . The twist-locking pen according to claim 1 , characterized in that: the socket spacing ( 11 ) is covered with a soft dust cover ( 11 a ); the two sides of the front part ( 1 ) of the pen holder A clamping friction part (1a) is provided.

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