A pen in which the point can be depressed

Abstract

The application discloses a pen with a pressable pen point, comprising: a pen barrel, one end of the pen barrel being a writing end and the other end being a pressing end, the pen barrel having a containing cavity inside; a sleeve, the sleeve being arranged in the containing cavity and being slidable along the length direction of the pen barrel; a water reservoir, the water reservoir being adjacent to the writing end and being fixedly arranged in the sleeve; a pen point, the pen point being fixedly arranged between the water reservoir and the sleeve; a sealing cover, the sealing cover being arranged in the containing cavity and being rotatably connected with the pen barrel to open or cover the writing end; and a push rod, the push rod being arranged at the pressing end and being connected with the sleeve to drive the sleeve to move back and forth. The biggest improvement of the device is that a rotatable sealing cover is additionally arranged at the writing end of the pen. The sealing cover does not affect the normal extension and retraction of the pen point, and when the pen point is retracted, the sealing cover can cover the writing end to prevent the evaporation of the ink of the pen point and protect the pen point, so that the pen is very convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pen, in particular to a pen with a retractable nib. BACKGROUND

[0002] The pen is a common writing tool, and a retractable nib pen has appeared, which is similar to the retractable refill of a ballpoint pen. The end of the pen barrel of the retractable nib pen is provided with an opening for the nib to extend and retract. However, the opening of the pen is not sealed, or it is difficult to achieve reasonable sealing. After a period of non-use, the ink in the nib will evaporate, resulting in the inability to write. Therefore, improvement is needed. SUMMARY

[0003] The present application aims to solve at least one of the technical problems in the prior art. To this end, one object of the present application is to provide a pen with a retractable nib.

[0004] The technical solution of the present application is as follows: a pen with a retractable nib, characterized in that it comprises:

[0005] a pen barrel, one end of the length direction of the pen barrel being a writing end, the other end of the length direction of the pen barrel being a pressing end, the pen barrel having an accommodation cavity inside, the accommodation cavity extending along the length direction of the pen barrel and penetrating the writing end and the pressing end respectively;

[0006] a sleeve, the sleeve being arranged in the accommodation cavity and being slidable along the length direction of the pen barrel;

[0007] a water reservoir, the water reservoir being adjacent to the writing end and being fixedly arranged in the sleeve;

[0008] a nib, the nib being fixedly arranged between the water reservoir and the sleeve;

[0009] a sealing cover, the sealing cover being arranged in the accommodation cavity, the sealing cover being rotationally connected to the pen barrel to open or cover the writing end;

[0010] a push rod, the push rod being arranged at the pressing end, the push rod being connected to the sleeve to drive the sleeve to move back and forth;

[0011] When the sleeve moves to drive the nib to move outward, the nib abuts against the sealing cover and pushes the sealing cover to flip to extend from the writing end. When the sleeve moves in the opposite direction to drive the nib to move inward, the nib retracts into the accommodation cavity and no longer abuts against the sealing cover, and the sealing cover can be flipped in the opposite direction to cover the writing end again.

[0012] Further, the pen rod comprises a first rod body, a second rod body and a fixing sleeve, the first rod body is detachably connected with the fixing sleeve, the second rod body is detachably connected with the fixing sleeve, one end of the first rod body away from the second rod body is the writing end, and one end of the second rod body away from the first rod body is the pressing end.

[0013] The sleeve is slidably arranged in the fixing sleeve, the sealing cover is rotationally connected with the first rod body, and the push rod is slidably connected with the second rod body.

[0014] Further, the pen rod further comprises a spring, a protective sleeve and a rotating barrel.

[0015] The spring sleeve is arranged on the sleeve, one end of the spring is abutted against the pen rod, and the other end of the spring is abutted against the sleeve; the protective sleeve and the rotating barrel are 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 rotating barrel.

[0016] One end of the rotating barrel away from the protective sleeve is provided with a plurality of first ratchet teeth uniformly arranged along the circumference of the rotating barrel, and a first protrusion is arranged on the outer circumferential wall of the rotating barrel; one end of the push rod close to the rotating barrel is provided with a plurality of second ratchet teeth arranged along the circumference of the push rod, the first ratchet teeth are capable of being engaged with the second ratchet teeth, and a second protrusion is arranged on the outer circumferential wall of the push rod.

[0017] A plurality of convex ribs are arranged on the inner circumferential wall of the pen rod and extend along the length direction of the pen rod, and a plurality of deep grooves and shallow grooves are alternately arranged between the plurality of convex ribs, and the second protrusion is slidably arranged in the deep groove; the push rod is capable of sliding the rotating barrel to make the first protrusion be clamped into the deep groove or the shallow groove.

[0018] Further, a first limiting ring is arranged on the inner circumferential wall of the pen rod, a second limiting ring is arranged on the outer circumferential wall of the sleeve, and the spring is abutted between the first limiting ring and the second limiting ring.

[0019] Further, a clamping shaft is arranged on the outer circumferential wall of the sleeve, and an L-shaped clamping groove is arranged on the protective sleeve, and the clamping shaft is clamped into the clamping groove.

[0020] Further, a sealing ring is arranged at the writing end, the sealing ring is arranged in the accommodating cavity, and the sealing cover is capable of being abutted against the sealing ring to cover the writing end.

[0021] Further, the sealing cover comprises an arc-shaped part and a connecting part, the two ends of the length direction of the arc-shaped part are provided with the connecting parts, a pivoting shaft is arranged on the connecting part, a pivoting hole is arranged on the pen rod, the pivoting shaft is pivotally connected with the pivoting hole, the outer surface of the arc-shaped part is an arc surface, and the arc surface is located on a spherical surface with the pivoting shaft as the central axis.

[0022] Further, a pushing sleeve is arranged on the part of the sleeve adjacent to the writing end, and the pushing sleeve is slidable relative to the pen barrel and the sleeve respectively;

[0023] A third protrusion is arranged on the inner circumferential wall of the pushing sleeve, and a fourth protrusion is arranged on the outer circumferential wall of the sleeve, and the fourth protrusion is located on the side of the third protrusion close to the writing end;

[0024] A hook groove is arranged on the connecting part to form a hook part, and a protruding shaft is arranged on the part of the outer circumferential wall of the pushing sleeve close to the hook part;

[0025] During the process that the sealing cover is pushed and turned over by the pen tip, the hook part can hook the protruding shaft to pull the pushing sleeve to slide outward; during the process that the sleeve drives the pen tip to move inward, the fourth protrusion abuts against the third protrusion to drive the pushing sleeve to slide inward, and the pushing sleeve drives the sealing cover to turn over reversely to re-cover the writing end.

[0026] Further, a first sliding groove is arranged on the inner circumferential wall of the pushing sleeve, and a protruding strip is arranged on the outer circumferential wall of the sleeve, and the protruding strip is in sliding cooperation with the first sliding groove;

[0027] Alternatively, a second sliding groove is arranged on the inner circumferential wall of the pen barrel, and a sliding shaft is arranged on the outer circumferential wall of the pushing sleeve, and the sliding shaft is in sliding cooperation with the second sliding groove.

[0028] Further, a baffle is arranged in the sleeve, the baffle divides the sleeve into a first cavity and a second cavity, a plug is arranged on the baffle to communicate the first cavity and the second cavity, and the water reservoir is clamped into the first cavity.

[0029] Compared with the prior art, the present application has the following advantages:

[0030] (1) The greatest improvement of the device is that a rotatable sealing cover is arranged on the writing end of the pen, when writing, the pushing rod drives the sleeve to move, the sleeve drives the pen tip to move outward, when the pen tip collides with the sealing cover, a turning moment is generated between the acting force applied to the sealing cover by the pen tip and the turning axis of the sealing cover, so that the sealing cover is turned over to make the pen tip extend from the writing end; when not in use, the pushing rod drives the sleeve to move reversely to make the pen tip retract, the pen tip does not abut against the sealing cover, so that the sealing cover can cover the writing end again. That is to say, the sealing cover arranged additionally does not affect the normal extension and retraction of the pen tip, and after the pen tip retracts, the sealing cover can cover the writing end to prevent the evaporation of the ink of the pen tip and protect the pen tip, which is very convenient to use.

[0031] (2) A push sleeve is also provided, which can automatically reset the sealing cap without affecting the rotation of the sealing cap to open the writing end, so as to ensure that the sealing cap can cover the writing end after the pen tip retracts. This structure is very ingenious and simple in form, and easy to implement.

[0032] 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. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:

[0034] Figure 1 This is a schematic diagram of the pen tip after retraction according to the present invention;

[0035] Figure 2 This is a schematic diagram of the pen tip after it has extended according to the present invention;

[0036] Figure 3 This is a cross-sectional view of the present invention;

[0037] Figure 4 This is an exploded cross-sectional view of the present invention;

[0038] Figure 5 yes Figure 4 A schematic diagram of the pressing end section;

[0039] Figure 6 yes Figure 4 A schematic diagram of the writing end part;

[0040] Figure 7 This is a perspective view of the internal components of the pen barrel of the present invention;

[0041] Figure 8 This is a perspective view of the sealing cap portion of the present invention.

[0042] Figure label:

[0043] 1, pen holder; 2, writing end; 3, pressing end; 4, containing cavity; 5, sleeve; 6, water reservoir; 7, pen point; 8, sealing cover; 9, push rod; 10, first rod body; 11, second rod body; 12, fixing sleeve; 13, spring; 14, protective sleeve; 15, rotating cylinder; 16, first ratchet; 17, first protrusion; 18, second ratchet; 19, second protrusion; 20, protruding rib; 21, deep groove; 22, shallow groove; 23, first limiting ring; 24, second limiting ring; 25, clamping shaft; 26, clamping groove; 27, sealing ring; 28, arc-shaped part; 29, connecting part; 30, pivoting shaft; 31, pivoting hole; 32, pushing sleeve; 33, third protrusion; 34, fourth protrusion; 35, hook part; 36, hook groove; 37, protruding shaft; 38, first sliding groove; 39, protruding strip; 40, second sliding groove; 41, sliding shaft; 42, baffle; 43, insertion tube. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0045] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, in which the same or similar notations represent the same or similar elements or elements with the same or similar functions throughout. In the description of the present application, it needs to be understood that the orientations or positional relationships indicated by the terms “upper”, “lower”, “front”, “back”, “left”, “right”, “inner”, “outer”, “vertical”, “circumferential”, “radial”, “axial” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0046] In the present application, unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting”, “fixing” and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the description of the present application, "a first feature", "a second feature" can include one or more of the features. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0048] Reference will now be made to the drawings Figures 1-8 A retractable nib 7 pen according to an embodiment of the present application is described, which comprises a pen barrel 1, a sleeve 5, a water reservoir 6, a nib 7, a sealing cover 8 and a push rod 9.

[0049] As shown in Figure 1 and Figure 2 , one end of the length direction of the pen barrel 1 (i.e. the left end shown in the figure) is a writing end 2, the other end of the length direction of the pen barrel 1 (i.e. the right end shown in the figure) is a pressing end 3, the pen barrel 1 has a containing cavity 4 inside, the containing cavity 4 extends along the length direction of the pen barrel 1 (i.e. the left-right direction shown in the figure) and respectively penetrates the writing end 2 and the pressing end 3; the sleeve 5 is arranged in the containing cavity 4 and can slide along the length direction of the pen barrel 1; the water reservoir 6 is adjacent to the writing end 2 and is fixedly arranged in the sleeve 5; the nib 7 is fixedly arranged between the water reservoir 6 and the sleeve 5; the sealing cover 8 is arranged in the containing cavity 4, the sealing cover 8 is rotationally connected with the pen barrel 1 to open or cover the writing end 2; the push rod 9 is arranged at the pressing end 3, the push rod 9 is connected with the sleeve 5 to drive the sleeve 5 to move back and forth.

[0050] Wherein, when the sleeve 5 moves to drive the nib 7 to move outward (for the nib 7, outward means left in the figure, and inward means right in the figure), the nib 7 abuts against the sealing cover 8 and pushes the sealing cover 8 to flip to extend from the writing end 2; when the sleeve 5 moves reversely to drive the nib 7 to move inward, the nib 7 is retracted into the containing cavity and no longer abuts against the sealing cover 8, the sealing cover 8 can be flipped reversely to cover the writing end 2 again.

[0051] Specifically, compared with the existing pen with a retractable nib 7, the biggest improvement of the device is that a rotatable sealing cover 8 is arranged at the writing end 2 of the pen, and the eccentricity is achieved by letting the contact point of the nib 7 and the sealing cover deviate from the rotation axis of the sealing cover (i.e. the contact point and the rotation axis are not on the same horizontal plane in the left-right direction), so that when writing is needed, the push rod 9 drives the sleeve 5 to move, the sleeve 5 drives the nib 7 to move outward, when the nib 7 hits the sealing cover 8, a rotation torque is generated between the force exerted by the nib 7 on the sealing cover 8 and the rotation axis of the sealing cover 8, so that the sealing cover 8 is flipped to make the nib 7 extend from the writing end 2; when not in use, the push rod 9 drives the sleeve 5 to move reversely to make the nib 7 retract, the nib 7 does not abut against the sealing cover 8, so that the sealing cover 8 can cover the writing end 2 again.

[0052] In other words, the added sealing cap 8 will not affect the normal extension and retraction of the pen tip 7. On the other hand, when the pen tip 7 retracts, the sealing cap 8 can cover the writing end 2 to prevent the ink from evaporating from the pen tip 7 and protect the pen tip 7, making it very convenient to use.

[0053] The following will detail the specific structure of each part of this fountain pen.

[0054] In this embodiment, as Figures 1-4 As shown, the pen barrel 1 includes a first rod body 10, a second rod body 11, and a fixing sleeve 12. The first rod body 10 is detachably connected to the fixing sleeve 12, and the second rod body 11 is detachably connected to the fixing sleeve 12. The end of the first rod body 10 away from the second rod body 11 is the writing end 2, and the end of the second rod body 11 away from the first rod body 10 is the pressing end 3. The sleeve 5 is slidably disposed inside the fixing sleeve 12, the sealing cap 8 is rotatably connected to the first rod body 10, and the push rod 9 is slidably connected to the second rod body 11.

[0055] In other words, the pen barrel 1 used in this fountain pen is not a single piece, but is assembled from three parts: the first barrel 10, the second barrel 11, and the fixing sleeve 12. The first barrel 10 and the fixing sleeve 12 are detachably connected, and the second barrel 11 and the fixing sleeve 12 are detachably connected, which facilitates the assembly and disassembly of the pen barrel 1.

[0056] In practical applications, there are many ways to achieve the above-mentioned detachable connection. For example, the first rod 10 and the fixed sleeve 12 can be connected by a snap or a thread, and the second rod 11 and the fixed sleeve 12 can be connected by a snap or a thread. Both snap and thread connection are common connection methods for pen barrels 1 in pen products and belong to the prior art. Those skilled in the art can choose and adjust according to actual needs, and will not be elaborated further.

[0057] In this embodiment, as Figure 3 As shown, the sleeve 5 has a baffle 42 inside, which divides the sleeve 5 into a first cavity and a second cavity. The baffle 42 is provided with an insertion tube 43 for connecting the first cavity and the second cavity. The water reservoir 6 is inserted into the first cavity. In use, the ink cartridge needs to be forcefully inserted into the insertion tube 43 so that the ink in the ink cartridge can seep into the water reservoir 6 through the insertion tube 43.

[0058] In this embodiment, as Figures 3-5As shown, the pen also includes a spring 13, a protective sleeve 14, and a rotating barrel 15. The spring 13 is sleeved on the sleeve 5, one end of the spring 13 abuts against the pen barrel 1 (specifically, the first rod body 10 mentioned above), and the other end abuts against the sleeve 5. The protective sleeve 14 and the rotating barrel 15 are both arranged in the accommodating cavity 4, one end of the protective sleeve 14 is detachably connected to the sleeve 5, and the other end abuts against the rotating barrel 15. The protective sleeve 14 is mainly arranged to protect the ink sac, and the protective sleeve 14 is detachably connected to the sleeve 5, which facilitates the disassembly and assembly of the protective sleeve and the replacement of the ink sac.

[0059] As shown in the drawings, Figure 5 The end of the rotating barrel 15 away from the protective sleeve 14 is provided with a plurality of first ratchet teeth 16 uniformly arranged along the circumference of the rotating barrel 15, and the outer circumferential wall of the rotating barrel 15 is provided with a first protrusion 17. The end of the push rod 9 close to the rotating barrel 15 is provided with a plurality of second ratchet teeth 18 arranged along the circumference of the push rod 9, the first ratchet teeth 16 can be engaged with the second ratchet teeth 18, and the outer circumferential wall of the push rod 9 is provided with a second protrusion 19. The inner circumferential wall of the pen barrel 1 (specifically, the second rod body 11 mentioned above) is provided with a plurality of protrusions 20 extending along the length direction of the pen barrel 1, and a plurality of deep grooves 21 and shallow grooves 22 are alternately arranged between the plurality of protrusions 20, and the second protrusion 19 is slidingly arranged in the deep groove 21. The push rod 9 can push the rotating barrel 15 to slide so that the first protrusion 17 is engaged into the deep groove 21 or the shallow groove 22.

[0060] Specifically, when the push rod 9 is pressed to make the first protrusion 17 of the rotating barrel 15 engaged into the shallow groove 22, the rotating barrel 15 will drive the protective sleeve 14 to move leftward, the protective sleeve 14 drives the sleeve 5 to move leftward, and the sleeve 5 drives the pen point 7 to stretch out and press the spring 13 at the same time. When the push rod 9 is pressed to make the first protrusion 17 of the rotating barrel 15 engaged into the deep groove 21, the spring 13 is reset, and the spring 13 will push the sleeve 32 to move reversely, the sleeve 5 drives the pen point 7 to retract and drives the protective sleeve 14 to move reversely at the same time. The structure and working principle of the pressing type automatic expansion and contraction locking mechanism of the pen point 7 are the same as those of the pressing type automatic expansion and contraction locking mechanism of the ballpoint pen refill in the prior art, which belongs to the prior art and is well known to those skilled in the art. Moreover, the more specific working principle can be referred to the video explanation in the link https: / / www.bilibili.com / video / BV1p64y1171t?from=search&seid=10079165357188251003&spm_id_from=333.337.0.0, and thus will not be described herein.

[0061] In this embodiment, as shown in the drawings, Figure 6 The inner circumferential wall of the pen barrel 1 (specifically, the fixed sleeve 12 mentioned above) is provided with a first limiting ring 23, the outer circumferential wall of the sleeve 5 is provided with a second limiting ring 24, and the spring 13 is abutted between the first limiting ring 23 and the second limiting ring 24, so as to limit the spring 13.

[0062] In the embodiment, as shown in Figure 6 , the outer peripheral wall of the sleeve 5 is provided with a clamping shaft 25, and the protective sleeve 14 is provided with an L-shaped clamping groove 26, the clamping shaft 25 is clamped into the clamping groove 26, thereby achieving detachable connection of the protective sleeve 14 and the sleeve 5, and the disassembly and assembly are simple.

[0063] In the embodiment, as shown in Figure 3 , Figure 4 and Figure 6 , the writing end 2 is provided with a sealing ring 27, the sealing ring 27 is located in the accommodating cavity 4, and the sealing cover 8 can abut against the sealing ring 27 to cover the writing end 2, thereby improving the sealing effect.

[0064] In the embodiment, as shown in Figures 6-8 , the sealing cover 8 includes an arc-shaped portion 28 and a connecting portion 29, the two ends of the length direction of the arc-shaped portion 28 are provided with the connecting portion 29, the connecting portion 29 is provided with a pivot shaft 30, the pen barrel 1 is provided with a pivot hole 31, and the pivot shaft 30 is pivotally connected with the pivot hole 31, thereby achieving the pivotal rotation of the sealing cover 8. The outer surface of the arc-shaped portion 28 is an arc surface, and the arc surface is located on a spherical surface with the pivot shaft 30 as the central axis, thereby the projection of the arc surface on the plane perpendicular to the pivot shaft 30 is a circular arc, which is more convenient to determine the maximum movement range of the sealing cover 8, so as to leave enough internal space for the sealing cover 8 to rotate at the writing end 2, avoiding the phenomenon of interference and jamming.

[0065] In the embodiment, as shown in Figures 6-8 , the pen further includes a pushing sleeve 32, the pushing sleeve 32 is sleeved on the part of the sleeve 5 adjacent to the writing end 2, and the pushing sleeve 32 is slidable relative to the pen barrel 1 and the sleeve 5. Specifically, the inner peripheral wall of the pushing sleeve 32 is provided with a first sliding groove 38, the outer peripheral wall of the sleeve 5 is provided with a protruding strip 39, the protruding strip 39 is in sliding connection with the first sliding groove 38, thereby achieving the relative sliding of the pushing sleeve 32 and the sleeve 5; the inner peripheral wall of the pen barrel 1 (i.e. the fixed sleeve 12 in the foregoing) is provided with a second sliding groove 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 connection with the second sliding groove 40, thereby achieving the relative sliding of the pushing sleeve 32 and the pen barrel 1.

[0066] The inner circumferential wall of the pushing sleeve 32 is provided with a third protrusion 33, the outer circumferential wall of the sleeve 5 is provided with a fourth protrusion 34, the fourth protrusion 34 is located on the side of the third protrusion 33 close to the writing end 2; the connecting part 29 is provided with a hook groove 36 to form a hook part 35, the part of the outer circumferential wall of the pushing sleeve 32 close to the hook part 35 is provided with a protruding shaft 37; wherein, in the process of the sealing cover 8 being pushed and turned over by the pen point 7, the hook part 35 can hook the protruding shaft 37 to pull the pushing sleeve 32 to slide outward; in the process of the sleeve 5 driving the pen point 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 turn over reversely to re-cover the writing end 2 through the hook part 35.

[0067] Specifically, after the pushing sleeve 32 is arranged, because the pushing 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 outward, the pen point 7 pushes the sealing cover 8 to turn over, at this time, the hook part 35 hooks the protruding shaft 37, and with the continuous turning over of the sealing cover 8, the hook part 35 gradually pulls the pushing sleeve 32 to slide outward, in this process, the pushing sleeve 32 is driven to slide by the sealing cover 8, and the pushing sleeve 32 does not affect the rotation of the sealing cover 8; when the pen point 7 is retracted, the sleeve 5 moves reversely, and can drive the pushing sleeve 32 to slide inward through the abutting action of the fourth protrusion 34 and the third protrusion 33, at this time, because the hook part 35 still hooks the protruding shaft 37, therefore, in this process, the pushing sleeve 32 drives the sealing cover 8 to turn over reversely to realize resetting. That is to say, after the pushing sleeve 32 is arranged, the automatic resetting of the sealing cover 8 can be realized without affecting the rotation of the sealing cover 8 to open the writing end 2, so as to ensure that the sealing cover 8 can cover the writing end 2 after the pen point 7 is retracted, this structure is very ingenious, and is simple in form and convenient to realize.

[0068] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and the purposes of the present application, the scope of the present application is defined by the claims and the equivalents thereof.

Claims

1. A pen in which a pen point can be pressed in and out, characterized in that, The utility model relates to a pen, which comprises: a pen barrel, one end of which is a writing end and the other end is a pressing end, the pen barrel has a receiving cavity inside, which extends along the length direction of the pen barrel and penetrates the writing end and the pressing end respectively; a sleeve, which is arranged in the receiving cavity and can slide along the length direction of the pen barrel; a water reservoir, which is adjacent to the writing end and is fixedly arranged in the sleeve; a pen tip, which is fixedly arranged between the water reservoir and the sleeve; a sealing cover, which is arranged in the receiving cavity and is rotatably connected with the pen barrel to open or cover the writing end; a push rod, which is arranged at the pressing end and is connected with the sleeve to drive the sleeve to move back and forth; when the sleeve moves to drive the pen tip to move outward, the pen tip abuts against the sealing cover and pushes the sealing cover to flip to extend from the writing end; when the sleeve moves reversely to drive the pen tip to move inward, the pen tip retracts into the receiving cavity and no longer abuts against the sealing cover, and the sealing cover can flip reversely to cover the writing end again; the sealing cover comprises an arc-shaped part and a connecting part, both ends of the arc-shaped part in the length direction are provided with the connecting part, the connecting part is provided with a pivot shaft, the pen barrel is provided with a pivot hole, the pivot shaft is pivotally connected with the pivot hole, the outer surface of the arc-shaped part is an arc surface, and the arc surface is located on a spherical surface with the pivot shaft as the central axis; a push sleeve, which is sleeved on the part of the sleeve adjacent to the writing end, the push sleeve can slide relative to the pen barrel and the sleeve respectively; the inner peripheral wall of the push sleeve is provided with a third protrusion, the outer peripheral wall of the sleeve is provided with a fourth protrusion, and the fourth protrusion is located on the side of the third protrusion close to the writing end; the connecting part is provided with a hook groove to form a hook part, and the outer peripheral wall of the push sleeve is provided with a protruding shaft close to the hook part; during the process that the sealing cover is pushed and flipped by the pen tip, the hook part can hook the protruding shaft to pull the push sleeve to slide outward; during the process that the sleeve drives the pen tip to move inward, the fourth protrusion abuts against the third protrusion to drive the push sleeve to slide inward, and the push sleeve drives the sealing cover to flip reversely to cover the writing end again through the hook part; the pen barrel comprises a first rod body, a second rod body and a fixing sleeve, the first rod body and the fixing sleeve are detachably connected, the second rod body and the fixing sleeve are detachably connected, one end of the first rod body away from the second rod body is the writing end, and one end of the second rod body away from the first rod body is the pressing end; the sleeve is slidably arranged in the fixing sleeve, the sealing cover is rotatably connected with the first rod body, and the push rod is slidably connected with the second rod body.

2. A pen with a depressible nib as claimed in claim 1, characterized in that the utility model further comprises a spring, a protective sleeve and a rotating cylinder. The spring sheath is on the sleeve, one end of the spring is in abutment with the pen barrel, and the other end is in abutment with the sleeve; the protective sleeve and the rotating drum are arranged in the accommodating cavity, one end of the protective sleeve is detachably connected with the sleeve, and the other end is in abutment with the rotating drum; The end of the rotating drum away from the protective sleeve is provided with a plurality of first ratchet teeth uniformly arranged in the circumferential direction of the rotating drum, and the outer circumferential wall of the rotating drum is provided with a first protrusion; the end of the push rod close to the rotating drum is provided with a plurality of second ratchet teeth arranged in the circumferential direction of the push rod, the first ratchet teeth can be engaged with the second ratchet teeth, and the outer circumferential wall of the push rod is provided with a second protrusion; The inner circumferential wall of the pen barrel is provided with a plurality of protruding ribs extending in the length direction of the pen barrel, and a plurality of deep grooves and shallow grooves are alternately arranged between the protruding ribs, and the second protrusion is slidably arranged in the deep groove; the push rod can slide the rotating drum to make the first protrusion be clamped into the deep groove or the shallow groove.

3. A pen with a depressible nib as claimed in claim 2, wherein The inner circumferential wall of the pen barrel is provided with a first limiting ring, and the outer circumferential wall of the sleeve is provided with a second limiting ring, and the spring is abutted between the first limiting ring and the second limiting ring.

4. A pen with a depressible nib as claimed in claim 2, wherein The outer circumferential wall of the sleeve is provided with a clamping shaft, and the protective sleeve is provided with an L-shaped clamping groove, and the clamping shaft is clamped into the clamping groove.

5. The push-to-click point pen of claim 1, wherein The writing end is provided with a sealing ring, the sealing ring is located in the accommodating cavity, and the sealing cover can be in abutment with the sealing ring to cover the writing end.

6. The push-to-click point pen of claim 1, wherein The inner circumferential wall of the push sleeve is provided with a first sliding groove, and the outer circumferential wall of the sleeve is provided with a protruding strip, and the protruding strip and the first sliding groove are in sliding fit; Alternatively, the inner circumferential wall of the pen barrel is provided with a second sliding groove, and the outer circumferential wall of the push sleeve is provided with a sliding shaft, and the sliding shaft and the second sliding groove are in sliding fit.

7. The push-to-click point pen of claim 1, wherein The inner part of the sleeve is provided with a baffle, the baffle divides the sleeve into a first cavity and a second cavity, the baffle is provided with a cannula for connecting the first cavity and the second cavity, and the water reservoir is clamped into the first cavity.

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