CN217705291U

CN217705291U - Pen capable of pressing in and out pen point

Info

Publication number: CN217705291U
Application number: CN202220426225.3U
Authority: CN
Inventors: 雷锴
Original assignee: Nanchang Pengda Pen Industry Co ltd
Current assignee: Nanchang Pengda Pen Industry Co ltd
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-11-01
Anticipated expiration: 2032-03-01

Abstract

The utility model discloses a can press pen of business turn over nib, include: the pen holder is provided with a writing end at one end and a pressing end at the other end, and an accommodating cavity is formed inside the pen holder; the sleeve is arranged in the accommodating cavity and can slide along the length direction of the pen rod; the water storage device is adjacent to the writing end and is fixedly clamped in the sleeve; the pen point is fixedly clamped between the water storage device and the sleeve; the sealing cover is arranged in the accommodating cavity and is rotationally connected with the penholder so as to open or cover the writing end; the push rod is arranged at the pressing end and connected with the sleeve to drive the sleeve to move in a reciprocating mode. The biggest improvement point of this device has set up a rotatable sealed lid at the writing end of pen, and the sealed lid that adds can not influence the nib on the one hand and normally stretch out and retract, and on the other hand when the nib retracts back, sealed lid can cover the writing end to play and prevent nib ink evaporation, the effect of protection nib, it is very convenient to use.

Description

Pen capable of pushing in and out pen point

Technical Field

The utility model belongs to the technical field of the pen technique and specifically relates to a pen of business turn over nib can be pressed.

Background

The pen is a common writing tool, a pen point retractable pen similar to a ball-point pen refill in retractable manner is developed at present, an opening is formed in the end portion of a pen holder of the pen to enable a pen point to extend out and retract, but the opening of the pen is not provided with a sealing structure or is difficult to achieve reasonable sealing, and after the pen is not used for a period of time, ink at the pen point can evaporate to cause that writing cannot be performed, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model aims at providing a pen which can be pressed in and out the pen point.

The technical scheme of the utility model as follows: a pen that can be pushed in and out of a nib, comprising:

the pen holder is characterized in that one end of the pen holder in the length direction is a writing end, the other end of the pen holder in the length direction is a pressing end, and an accommodating cavity is formed in the pen holder and extends along the length direction of the pen holder and penetrates through the writing end and the pressing end respectively;

the sleeve is arranged in the accommodating cavity and can slide along the length direction of the pen rod;

a water reservoir adjacent said writing end and fixedly captured within said sleeve;

the pen point is fixedly clamped between the water storage device and the sleeve;

the sealing cover is arranged in the accommodating cavity and is rotationally connected with the penholder so as to open or cover the writing end;

the push rod is arranged at the pressing end and is connected with the sleeve to drive the sleeve to move in a reciprocating manner;

when the sleeve moves to drive the pen point to move outwards, the pen point is abutted to the sealing cover and pushes the sealing cover to turn over so as to extend out of the writing end; when the sleeve moves reversely to drive the pen tip to move inwards, the pen tip retracts into the accommodating part and is not abutted against the sealing cover, and the sealing cover can be reversely turned to cover the writing end again.

Further, the penholder comprises a first rod body, a second rod body and a fixed sleeve, the first rod body is detachably connected with the fixed sleeve, the second rod body is detachably connected with the fixed sleeve, one end of the first rod body, far away from the second rod body, is the writing end, and one end of the second rod body, far away from the first rod body, is the pressing end;

the sleeve is arranged in the fixed sleeve in a sliding mode, the sealing cover is connected with the first rod body in a rotating mode, and the push rod is connected with the second rod body in a sliding mode.

Further, the device also comprises a spring, a protective sleeve and a rotary drum;

the spring is sleeved on the sleeve, one end of the spring is abutted against the penholder, and the other end of the spring is abutted against the sleeve; the protective sleeve and the rotary drum are both arranged in the accommodating cavity, one end of the protective sleeve is detachably connected with the sleeve, and the other end of the protective sleeve is abutted against the rotary drum;

a plurality of first ratchets uniformly distributed along the circumferential direction of the rotary drum are arranged at one end of the rotary drum, which is far away from the protective sleeve, and a first bulge is arranged on the outer circumferential wall of the rotary drum; one end of the push rod, which is close to the rotary drum, is provided with a plurality of second ratchets which are distributed along the circumferential direction of the push rod, the first ratchets can be clamped with the second ratchets, and the outer circumferential wall of the push rod is provided with a second bulge;

the inner peripheral wall of the pen holder is provided with a plurality of convex ribs extending along the length direction of the pen holder, deep grooves and shallow grooves which are alternately distributed are distributed among the plurality of convex ribs, and the second protrusions are arranged in the deep grooves in a sliding manner; the push rod can push the rotary drum to slide so that the first bulge is clamped into the deep groove or the shallow groove.

Further, be equipped with first spacing ring on the internal perisporium of pen-holder, be equipped with the second spacing ring on the sheathed tube periphery wall, the spring end is in first spacing ring with between the second spacing ring.

Furthermore, a clamping shaft is arranged on the peripheral wall of the sleeve, an L-shaped clamping groove is formed in the protective sleeve, and the clamping shaft is clamped into the clamping groove.

Further, write the end and be equipped with the sealing washer, the sealing washer is located hold the intracavity, sealed lid can with the sealing washer butt is in order to cover write the end.

Further, the sealing cover comprises an arc portion and a connecting portion, the two ends of the arc portion in the length direction are provided with the connecting portion, the connecting portion is provided with a pivot shaft, the pen holder is provided with a pivot hole, the pivot shaft is in pivot fit with the pivot hole, the outer surface of the arc portion is an arc surface, and the arc surface is located on a spherical surface with the axis of the pivot shaft as a central axis.

Further, the pen also comprises a pushing sleeve, wherein the pushing sleeve is sleeved on a part of the sleeve, which is adjacent to the writing end, and the pushing sleeve can slide relative to the pen holder and the sleeve respectively;

a third bulge is arranged on the inner peripheral wall of the pushing sleeve, a fourth bulge is arranged on the outer peripheral wall of the sleeve, and the fourth bulge is positioned on one side, close to the writing end, of the third bulge;

a hook groove is formed in the connecting part to form a hook part, and a convex shaft is arranged on the part, close to the hook part, of the peripheral wall of the pushing sleeve;

the hook part can hook the protruding shaft to pull the pushing sleeve to slide outwards in the process that the sealing cover is pushed and turned over by the pen point; in the process that the sleeve drives the pen point to move inwards, the fourth protrusion is abutted to the third protrusion to drive the pushing sleeve to slide inwards, and the pushing sleeve drives the sealing cover to reversely turn over through the hook part to cover the writing end again.

Furthermore, a first sliding groove is formed in the inner peripheral wall of the pushing sleeve, a convex strip is arranged on the outer peripheral wall of the sleeve, and the convex strip is in sliding fit with the first sliding groove;

or, be equipped with the second spout on the internal perisporium of pen-holder, be equipped with the slide-shaft on the periphery wall of promotion cover, the slide-shaft with second spout sliding fit.

Further, a baffle is arranged inside the sleeve, the sleeve is divided into a first tube cavity and a second tube cavity by the baffle, an insertion tube used for communicating the first tube cavity with the second tube cavity is arranged on the baffle, and the water storage device is clamped into the first tube cavity.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) The device has the greatest improvement that a rotatable sealing cover is additionally arranged at the writing end of the pen, when the pen needs to write, the sleeve is driven by the push rod to move, the pen point is driven by the sleeve to move outwards, and when the pen point touches the sealing cover, a rotating moment is generated between the acting force applied to the sealing cover by the pen point and the rotating axis of the sealing cover, so that the sealing cover is turned over, and the pen point can extend out of the writing end; when the pen is not used, the push rod drives the sleeve to move reversely to enable the pen point to retract, the pen point is not abutted to the sealing cover, and the sealing cover can cover the writing end again. That is to say, the added sealing cover can not influence the normal extension and retraction of the pen point on one hand, and on the other hand, after the pen point retracts, the sealing cover can cover the writing end so as to prevent the ink of the pen point from evaporating and protect the pen point, and the use is very convenient;

(2) Still set up a promotion cover, can realize sealed automatic re-setting of lid under the circumstances that covers the rotation and open the end of writing not influencing to ensure that the nib retracts the back, sealed lid can cover the end of writing, this kind of structure is very ingenious, and the form is simple moreover, is convenient for realize.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work:

FIG. 1 is a schematic view of the retractable nib of the present invention;

FIG. 2 is a schematic view of the pen tip of the present invention after being extended;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is a cut-away exploded view of the present invention;

FIG. 5 is a schematic view of the pressing end portion of FIG. 4;

FIG. 6 is a schematic view of the writing tip portion of FIG. 4;

FIG. 7 is a perspective view of the inner components of the barrel of the present invention;

fig. 8 is a perspective view of the sealing cap of the present invention.

Reference numerals are as follows:

1. a pen holder; 2. a writing end; 3. a pressing end; 4. an accommodating chamber; 5. a sleeve; 6. a water reservoir; 7. a pen point; 8. a sealing cover; 9. a push rod; 10. a first rod body; 11. a second rod body; 12. fixing a sleeve; 13. a spring; 14. a protective sleeve; 15. a rotating drum; 16. a first ratchet; 17. a first protrusion; 18. a second ratchet; 19. a second protrusion; 20. a rib is protruded; 21. deep grooves; 22. shallow-groove; 23. a first limit ring; 24. a second stop collar; 25. clamping a shaft; 26. a card slot; 27. A seal ring; 28. an arc-shaped portion; 29. a connecting portion; 30. a pivotal shaft; 31. a pivot hole; 32. a push sleeve; 33. a third protrusion; 34. a fourth protrusion; 35. a hook portion; 36. a hook groove; 37. a protruding shaft; 38. a first chute; 39. a convex strip; 40. A second chute; 41. a slide shaft; 42. a baffle plate; 43. and (6) inserting a tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", "radial", "axial", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

A retractable nib 7 pen according to an embodiment of the present invention is described below with reference to the accompanying drawings of fig. 1 to 8, including: the pen comprises a pen holder 1, a sleeve 5, a water storage device 6, a pen point 7, a sealing cover 8 and a push rod 9.

As shown in fig. 1 and 2, one end (i.e., the left end in the drawing) of the longitudinal direction of the barrel 1 is a writing end 2, the other end (i.e., the right end in the drawing) of the longitudinal direction of the barrel 1 is a pressing end 3, and the barrel 1 has an accommodating chamber 4 therein, the accommodating chamber 4 extending along the longitudinal direction (i.e., the left and right direction in the drawing) of the barrel 1 and penetrating the writing end 2 and the pressing end 3, respectively; the sleeve 5 is arranged in the accommodating cavity 4 and can slide along the length direction of the penholder 1; the water storage device 6 is adjacent to the writing end 2 and is fixedly clamped in the sleeve 5; the pen point 7 is fixedly clamped between the water storage device 6 and the sleeve 5; the sealing cover 8 is arranged in the accommodating cavity 4, and the sealing cover 8 is rotationally connected with the penholder 1 to open or cover the writing end 2; the push rod 9 is arranged at the pressing end 3, and the push rod 9 is connected with the sleeve 5 to drive the sleeve 5 to reciprocate.

Wherein, when the sleeve 5 moves to drive the nib 7 to move outwards (outwards in the drawing, namely leftwards in the drawing and inwards in the drawing for the nib 7), the nib 7 abuts against the sealing cover 8 and pushes the sealing cover 8 to overturn so as to extend out of the writing end 2; when the casing 5 is moved in the reverse direction to move the nib 7 inward, the nib 7 retracts into the housing and no longer abuts against the sealing cap 8, and the sealing cap 8 can be reversed to cover the writing tip 2 again.

Specifically, compared with the existing pen with the telescopic pen point 7, the largest improvement point of the device is that the writing end 2 of the pen is additionally provided with the rotatable sealing cover 8, and the eccentricity is realized by staggering the contact point of the pen point 7 and the sealing cover with the rotation axis of the sealing cover (namely the contact point and the plane where the rotation axis is located are not horizontal planes in the left-right direction), so that when the pen needs to write, the push rod 9 drives the sleeve 5 to move, the sleeve 5 drives the pen point 7 to move outwards, when the pen point 7 touches the sealing cover 8, a rotation moment can be generated between the acting force applied to the sealing cover 8 by the pen point 7 and the rotation axis of the sealing cover 8, and the sealing cover 8 is turned over so that the pen point 7 can extend out of the writing end 2; when the pen is not used, the push rod 9 drives the sleeve 5 to move reversely to retract the pen point 7, the pen point 7 is not abutted to the sealing cover 8, and the sealing cover 8 can cover the writing end 2 again.

That is to say, the normal extension and retraction of nib 7 can not be influenced on the one hand to the sealed lid 8 that adds, and on the other hand when nib 7 retracts the back, sealed lid 8 can cover writing end 2 to play and prevent 7 ink evaporation of nib, the effect of protection nib 7, it is very convenient to use.

The specific configuration of each part of the present pen will be described in detail below.

In this embodiment, as shown in fig. 1 to 4, the pen holder 1 includes a first rod 10, a second rod 11 and a fixing sleeve 12, the first rod 10 is detachably connected to the fixing sleeve 12, the second rod 11 is detachably connected to the fixing sleeve 12, an end of the first rod 10 away from the second rod 11 is a writing end 2, and an end of the second rod 11 away from the first rod 10 is a pressing end 3; the sleeve 5 is arranged in the fixed sleeve 12 in a sliding manner, the sealing cover 8 is rotationally connected with the first rod body 10, and the push rod 9 is connected with the second rod body 11 in a sliding manner.

That is to say, the penholder 1 used by the pen is not an integral piece, but is assembled and spliced by the three parts of the first rod body 10, the second rod body 11 and the fixing sleeve 12, wherein the first rod body 10 is detachably connected with the fixing sleeve 12, and the second rod body 11 is detachably connected with the fixing sleeve 12, so that the penholder 1 can be conveniently disassembled and assembled.

In practical application, the detachable connection mode can be realized in many ways, for example, the first rod body 10 and the fixing sleeve 12 can be connected through a buckle or a thread, the second rod body 11 and the fixing sleeve 12 can be connected through a buckle or a thread, and the two ways of the buckle connection and the thread connection are common connection forming modes of the pen holder 1 in pen products, belong to the prior art, and can be selected and adjusted by a person skilled in the art according to actual needs, which is not described in detail.

In this embodiment, as shown in fig. 3, a baffle 42 is provided inside the sleeve 5, the baffle 42 divides the sleeve 5 into a first lumen and a second lumen, a cannula 43 for communicating the first lumen and the second lumen is provided on the baffle 42, and the water reservoir 6 is clipped into the first lumen. In use, the ink reservoir needs to be inserted onto the cannula 43 with force so that ink in the ink reservoir can seep into the reservoir 6 through the cannula 43.

In this embodiment, as shown in fig. 3-5, the pen further comprises a spring 13, a protective sleeve 14 and a drum 15; the spring 13 is sleeved on the sleeve 5, one end of the spring 13 is abutted with the penholder 1 (specifically, the first rod body 10 in the above description), and the other end is abutted with the sleeve 5; in the chamber 4 was all located to hold by lag 14 and rotary drum 15, the one end of lag 14 and sleeve pipe 5 can be dismantled continuously, the other end and rotary drum 15 butt. The protection sleeve 14 that sets up mainly plays the guard action to the ink sac, and protection sleeve 14 can be dismantled with sleeve pipe 5 in addition and link to each other, and the antiskid cover of dismouting of being convenient for carries out the change of ink sac.

As shown in fig. 5, one end of the drum 15 away from the protective sleeve 14 is provided with a plurality of first ratchet teeth 16 uniformly arranged along the circumferential direction of the drum 15, and the outer circumferential wall of the drum 15 is provided with a first protrusion 17; one end of the push rod 9 close to the rotary drum 15 is provided with a plurality of second ratchets 18 arranged along the circumferential direction of the push rod 9, the first ratchets 16 can be clamped with the second ratchets 18, and the outer circumferential wall of the push rod 9 is provided with a second bulge 19; a plurality of convex ribs 20 extending along the length direction of the pen holder 1 are arranged on the inner peripheral wall of the pen holder 1 (specifically, the second rod body 11 in the above description), deep grooves 21 and shallow grooves 22 which are alternately arranged are distributed among the plurality of convex ribs 20, and the second protrusions 19 are arranged in the deep grooves 21 in a sliding manner; the pusher 9 can push the drum 15 to slide so that the first projections 17 snap into the deep or

shallow grooves

21, 22.

Specifically, when the push rod 9 is pressed to enable the first protrusions 17 of the rotary drum 15 to be clamped into the shallow grooves 22, the rotary drum 15 drives the protective sleeve 14 to move leftwards, the protective sleeve 14 drives the sleeve 5 to move leftwards, and the sleeve 5 drives the pen point 7 to extend outwards and simultaneously extrude the spring 13; when the push rod 9 is pressed to clamp the first protrusion 17 of the rotary drum 15 into the deep groove 21, the spring 13 is reset, the spring 13 can push the sleeve 32 and the tube 5 to move in the reverse direction, the sleeve 5 drives the pen point 7 to retract and simultaneously push the protective sleeve 14 to move in the reverse direction, and the structure and the working principle of the press type automatic telescopic locking mechanism of the pen point 7 are the same as those of the press type automatic telescopic locking mechanism of the ball-point pen refill in the prior art, belong to the prior art, are well known by the person skilled in the art, and therefore are not described again.

In the present embodiment, as shown in fig. 6, a first position-limiting ring 23 is disposed on an inner circumferential wall of the barrel 1 (specifically, the fixing sleeve 12 mentioned above), a second position-limiting ring 24 is disposed on an outer circumferential wall of the sleeve 5, and the spring 13 is stopped between the first position-limiting ring 23 and the second position-limiting ring 24, so that the spring 13 can be limited.

In this embodiment, as shown in fig. 6, a clamping shaft 25 is arranged on the outer peripheral wall of the sleeve 5, an L-shaped clamping groove 26 is arranged on the protective sleeve 14, and the clamping shaft 25 is clamped into the clamping groove 26, so that the protective sleeve 14 and the sleeve 5 can be detachably connected, and the dismounting and mounting manner is simple.

In this embodiment, as shown in fig. 3, 4 and 6, a sealing ring 27 is provided at the writing end 2, the sealing ring 27 is located in the accommodating chamber 4, and the sealing cover 8 can abut against the sealing ring 27 to cover the writing end 2, thereby improving the sealing effect.

In this embodiment, as shown in fig. 6 to 8, the sealing cover 8 includes an arc-shaped portion 28 and a connecting portion 29, the connecting portion 29 is disposed at two ends of the arc-shaped portion 28 in the length direction, a pivot shaft 30 is disposed on the connecting portion 29, a pivot hole 31 is disposed on the pen holder 1, and the pivot shaft 30 is in pivot fit with the pivot hole 31, so that the pivot rotation of the sealing cover 8 can be realized. Wherein the surface of arc portion 28 is the arcwall face, and the arcwall face is located and uses the pivot axle 30 axis as the spherical face of center pin, and from this, on the plane of perpendicular to pivot axle 30 axis, the projection of arcwall face is a circular arc, and the maximum motion range of sealed lid 8 is confirmed more conveniently like this to reserve sufficient inner space in writing end 2 department and supply sealed lid 8 to rotate, avoid appearing interfering the dead phenomenon of card.

In this embodiment, as shown in fig. 6-8, the pen further comprises a push sleeve 32, the push sleeve 32 is sleeved on the portion of the sleeve 5 adjacent to the writing end 2, and the push sleeve 32 can slide relative to the barrel 1 and the sleeve 5 respectively. Specifically, a first sliding groove 38 is formed in the inner peripheral wall of the push sleeve 32, a protruding strip 39 is formed in the outer peripheral wall of the sleeve 5, and the protruding strip 39 is in sliding fit with the first sliding groove 38, so that relative sliding between the push sleeve 32 and the sleeve 5 can be achieved; the inner peripheral wall of the pen holder 1 (i.e. the fixing sleeve 12) is provided with a second sliding slot 40, the outer peripheral wall of the pushing sleeve 32 is provided with a sliding shaft 41, and the sliding shaft 41 is in sliding fit with the second sliding slot 40, so that the pushing sleeve 32 and the pen holder 1 can slide relatively.

A third bulge 33 is arranged on the inner peripheral wall of the pushing sleeve 32, a fourth bulge 34 is arranged on the outer peripheral wall of the sleeve 5, and the fourth bulge 34 is positioned on one side, close to the writing end 2, of the third bulge 33; a hook groove 36 is arranged on the connecting part 29 to form a hook part 35, and a convex shaft 37 is arranged on the part of the outer peripheral wall of the pushing sleeve 32, which is close to the hook part 35; wherein, during the process that the sealing cover 8 is pushed to turn over by the pen point 7, the hook part 35 can hook the convex shaft 37 to pull the pushing sleeve 32 to slide outwards; during the process of the sleeve 5 driving the nib 7 to move inward, the fourth protrusion 34 abuts against the third protrusion 33 to drive the pushing sleeve 32 to slide inward, and the pushing sleeve 32 drives the sealing cover 8 to reverse and turn over through the hook 35 to cover the writing tip 2 again.

Specifically, after the push sleeve 32 is arranged, because the push sleeve 32 is provided with the protruding shaft 37 and the connecting part 29 is provided with the hook part 35, when the pen point 7 extends outwards, the pen point 7 pushes the sealing cover 8 to turn over, at the moment, the hook part 35 hooks the protruding shaft 37, and along with the continuous turning of the sealing cover 8, the hook part 35 gradually pulls the push sleeve 32 outwards to slide, in the process, the push sleeve 32 is driven by the sealing cover 8 to slide, and the push sleeve 32 cannot influence the rotation of the sealing cover 8; when the pen point 7 retracts, the sleeve 5 moves reversely, and the pushing sleeve 32 can be driven to slide inwards through the abutting action of the fourth protrusion 34 and the third protrusion 33, and at this time, the hook part 35 still hooks the convex shaft 37, so that in the process, the pushing sleeve 32 drives the sealing cover 8 to reversely turn over to realize resetting. That is to say, after setting up and promoting the cover 32, can realize the automatic re-setting of sealed lid 8 under the condition of not influencing sealed lid 8 and rotating the end 2 of opening writing to ensure that the nib 7 retracts back, sealed lid 8 can cover the end 2 of writing, and this kind of structure is very ingenious, and the form is simple moreover, is convenient for realize.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pen that can be pushed in and out of a nib, comprising:

the pen holder is characterized in that one end of the pen holder in the length direction is a writing end, the other end of the pen holder in the length direction is a pressing end, and an accommodating cavity is formed in the pen holder, extends along the length direction of the pen holder and respectively penetrates through the writing end and the pressing end;

the sealing cover is arranged in the accommodating cavity and is rotationally connected with the pen holder to open or cover the writing end;

when the sleeve moves to drive the pen point to move outwards, the pen point is abutted against the sealing cover and pushes the sealing cover to turn over so as to extend out of the writing end; when the sleeve moves reversely to drive the pen point to move inwards, the pen point retracts into the containing space and is not abutted with the sealing cover, and the sealing cover can be reversely turned to cover the writing end again.

2. A pen with a push-in nib according to claim 1, wherein said barrel comprises a first rod, a second rod and a securing sleeve, said first rod is detachably connected to said securing sleeve, said second rod is detachably connected to said securing sleeve, said end of said first rod remote from said second rod is said writing end, said end of said second rod remote from said first rod is said pressing end;

3. A pen with a depressible entry and exit nib according to claim 1, further comprising a spring, a shield and a barrel;

4. A pen with a push-in nib according to claim 3 wherein a first stop ring is provided on the inner peripheral wall of the pen holder, a second stop ring is provided on the outer peripheral wall of the sleeve, and the spring is stopped between the first stop ring and the second stop ring.

5. A pen with a push-in nib according to claim 3 wherein said sleeve has a latching shaft on its outer circumference, said shield has an L-shaped latching groove, and said latching shaft is latched into said latching groove.

6. A pen with a push-in nib according to claim 1, wherein a sealing ring is provided at the writing end, said sealing ring being located in the receiving chamber, said sealing cap being abuttable to said sealing ring to cover said writing end.

7. A pen with a push-in and push-out nib as claimed in claim 1, wherein said sealing cap includes an arc portion and a connecting portion, said connecting portion is disposed at both ends of the arc portion in the length direction, a pivot shaft is disposed on said connecting portion, a pivot hole is disposed on said pen holder, said pivot shaft is pivotally engaged with said pivot hole, the outer surface of said arc portion is an arc surface, and said arc surface is located on a spherical surface having the axis of said pivot shaft as a central axis.

8. A pen with a depressible entry and exit nib according to claim 7, further comprising a push sleeve surrounding a portion of the sleeve adjacent the writing end, the push sleeve being slidable relative to the barrel and the sleeve, respectively;

a hook groove is formed in the connecting part to form a hook part, and a protruding shaft is arranged on the part, close to the hook part, of the peripheral wall of the pushing sleeve;

the hook part can hook the protruding shaft to pull the pushing sleeve to slide outwards in the process that the sealing cover is pushed and turned over by the pen point; in the process that the sleeve pipe drives the pen point to move inwards, the fourth protrusion is abutted against the third protrusion to drive the pushing sleeve to slide inwards, and the pushing sleeve drives the sealing cover to reversely turn over through the hook part to cover the writing end again.

9. A pen with a push-in nib according to claim 8, wherein the push sleeve has a first sliding slot on its inner peripheral wall and a rib on its outer peripheral wall, said rib being in sliding engagement with said first sliding slot;

10. A pen with a push-in nib according to claim 1, wherein a baffle is provided inside the sleeve, the baffle divides the sleeve into a first lumen and a second lumen, the baffle is provided with a cannula for communicating the first lumen with the second lumen, and the reservoir is snapped into the first lumen.