CN215904186U

CN215904186U - Pen convenient to open and close

Info

Publication number: CN215904186U
Application number: CN202122543261.6U
Authority: CN
Inventors: 陈俊
Original assignee: Nanchang Yongsheng Stationery Co ltd
Current assignee: Nanchang Yongsheng Stationery Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-02-25
Anticipated expiration: 2031-10-21

Abstract

The utility model provides a pen convenient to open and close, which comprises a pen holder, a pen passage formed by the inner wall of the pen holder, a pen body arranged in the pen passage, an ink bag arranged on the pen body, a pen point communicated with the ink bag and the like, and further comprises: the pressing assembly is arranged on the opposite rear side of the pen body and used for controlling the pen point connected with the pen body to move back and forth along the axis direction of the pen holder so as to enable the pen point to extend out of the pen channel to the outside or retract into the pen channel from the outside; one side of the pen cover is rotatably connected to the pen holder, and the other corresponding side is a free side; an elastic piece is fixedly arranged between the pen cover and the pen holder, and the pen cover covers the pen point when the elastic piece is not elastically deformed; in the process of opening the pen cap in a rotating manner, the pen cap is extruded by the pen point moving forwards, and the elastic piece is elastically deformed; in the process of rotating and closing the pen cap, the pen point moves backwards, and the elastic restoring force generated by the elastic part with elastic deformation drives the pen cap connected with the elastic part to rotate and close. The pen cap and the pen holder are connected, and the opening and the closing are easy to operate.

Description

Pen convenient to open and close

Technical Field

The utility model belongs to the technical field of writing equipment, and particularly relates to a pen convenient to open and close.

Background

A pen is a writing instrument that has been produced earlier than a ball point pen. The pen comprises a pen point, a pen body, a pen holder and a pen cap, wherein the pen point is fixedly connected with the pen body, the pen body is positioned inside the pen holder and detachably connected with the pen holder, an ink bag is fixedly connected with the pen body, ink in the ink bag flows to the pen point and is used for a user to write, and when the pen cap is sleeved on the pen holder, the pen point is positioned in the pen cap.

The using method of the pen comprises the following steps: ink is contained in the hollow pen tube, and the ink is written by the duckbill type pen point under the action of gravity and capillary tubes.

The prior art has a problem that a user needs to take off a pen sleeve from a pen holder when using a pen, the pen sleeve is usually placed independently, so that the user can expose a pen point to the outside after using the pen, or forgetting the pen, or not finding the pen sleeve, and the other end of an ink conveying pipe with one end connected with the pen point is communicated with an ink sac filled with ink, so that the ink in the ink sac can be evaporated to the outside through the ink conveying pipe after absorbing the heat of the outside. Resulting in a loss of whiteness of the ink in the ink reservoir.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pen which can be conveniently opened and closed and can enable a pen point to be conveniently covered when the pen is used up so as to be separated from the outside.

Based on the above purpose, the utility model provides a pen convenient to open and close, which is used for storing stored materials, and comprises:

the pen holder is of a hollow structure;

the pen channel is formed by the inner wall of the pen holder and is communicated with the outside along the front side and the rear side of the axial direction of the pen holder;

the pen body is arranged in the pen channel along the axial direction of the pen holder;

the ink bag is arranged on the pen body along the axial direction of the pen holder;

the pen point is arranged on the opposite front side of the pen body along the axial direction of the pen holder and is communicated with the ink bag on the pen body;

the pressing assembly is arranged on the opposite rear side of the pen body along the axial direction of the pen holder and is used for controlling the pen point connected with the pen body to move back and forth along the axial direction of the pen holder so as to enable the pen point to extend out of the pen channel to the outside or retract into the pen channel from the outside;

the pen cap is rotatably connected to the pen holder at one side, and the corresponding other side is a free side and used for separating the pen point from the outside;

an elastic piece is fixedly arranged between the pen cover and the pen holder, and the pen cover covers the pen point when the elastic piece is not elastically deformed; in the process of opening the pen cap in a rotating mode, the pen cap is squeezed by the pen point moving forwards along the axis direction of the pen holder, and the elastic piece is elastically deformed; in the process of rotating and closing the pen cap, the pen point moves backwards along the axis direction of the pen holder, and the elastic restoring force generated by the elastic part with elastic deformation drives the pen cap connected with the elastic part to rotate and close; the pen cap is always located within the pen channel when rotationally opened and rotationally closed.

Optionally, a first resilient segment connected with the cap;

a second resilient segment; is connected with the penholder;

the length direction of the first elastic section is arranged along the direction of the free side of the pen cap rotating connection side;

the length direction of the second elastic section is arranged along the axial direction of the penholder;

the first elastic section and the second elastic section form a first included angle when the pen cover is closed, and form a second included angle when the pen cover is opened;

wherein, the first included angle and the second included angle are both less than or equal to 180 degrees, and the second included angle is greater than the first included angle.

Optionally, the two ends of the arc-shaped elastic segment or the spiral-shaped elastic segment are arranged in different directions, one end of the arc-shaped elastic segment or the spiral-shaped elastic segment is fixedly connected with the first elastic segment arranged along a tangential direction tangent to the one end, and the other end of the arc-shaped elastic segment or the spiral-shaped elastic segment is fixedly connected with the second elastic segment arranged along a tangential direction tangent to the other end.

Optionally, the arc-shaped elastic section or the spiral-shaped elastic section is arranged in an installation groove formed in the pen holder, and the installation groove is used for allowing the arc-shaped elastic section or the spiral-shaped elastic section to abut against the installation groove in the process of opening the pen cover.

Optionally, the width of the first resilient segment is substantially the same as the width of the second resilient segment;

the angle corresponding to the arc-shaped elastic segment is greater than or equal to 270 degrees and smaller than 360 degrees;

the width of the arc-shaped elastic section is the sum of the width of the first elastic section and the width of the second elastic section;

the width of the spiral elastic segment is substantially the same as the width of the first elastic segment and the width of the second elastic segment.

Optionally, the length of the first elastic segment is substantially the same as the maximum distance between the front side and the rear side of the pen cap arranged along the length direction of the first elastic segment;

the ratio range of the width of the first elastic segment to the maximum distance between the front side and the rear side of the pen cap in the width direction of the first elastic segment is one fifth to one half.

Optionally, one side of the first elastic segment adjacent to the second elastic segment is connected with the pen cap;

the side of the first elastic segment that is separated from the second elastic segment is a free side;

the first elastic section and one side surface of the pen point covered by the pen cover form a third included angle;

wherein, the third contained angle needs to satisfy, the pen cover is in the opening process, its free side at least on the first elasticity segmentation all the time with the nib contacts.

Optionally, the method further comprises:

the nib sleeve is arranged on the opposite front side of the pen channel along the axial direction of the pen holder, keeps the position unchanged when in use and is sleeved on the radial outer side of the nib;

one side of the pen cap is rotatably connected to the opposite front side of the pen point sleeve along the axial direction of the pen holder;

when the pen cover is closed, the pen cover covers the side face of the opposite front side of the pen point sleeve along the axial direction of the pen holder;

wherein the tip on the nib is disposed adjacent to the free side of the cap.

Optionally, the side surface of the opposite front side of the pen point sleeve along the axial direction of the pen holder is obliquely arranged and is basically parallel to the side surface of the opposite front side of the pen point along the axial direction of the pen holder;

when the pen cover is closed, the pen cover and the side face of the opposite front side of the pen point sleeve along the axial direction of the pen holder are arranged in a basically parallel mode.

Optionally, the pressing assembly comprises:

the pressing rod is movably connected with the opposite rear side of the pen body along the axial direction of the pen holder, and the opposite rear side of the pressing rod along the axial direction of the pen holder extends out of the opposite rear side of the pen holder along the axial direction of the pen holder;

the pressing sliding blocks are convexly arranged on the radial outer side of the pressing rod, the number of the pressing sliding blocks is a plurality, and all the pressing sliding blocks are uniformly spaced and form a circle to be wound on the radial outer side of the pressing rod;

the pressing channels are formed in the inner wall of the penholder on the opposite rear side along the axial direction of the penholder, are arranged along the axial direction of the penholder, are a plurality of and are arranged in one-to-one correspondence to the pressing sliders, and when the pressing rod is pressed, the pressing sliders slide along the pressing channels;

the pressing stop blocks are arranged on the inner wall of the pen holder in an inward protruding mode along the radial direction, and one pressing stop block is arranged between the opposite front sides of every two adjacent pressing channels along the axial direction of the pen holder;

the pressing spring is sleeved on the pen body and performs compression or recovery operation along the axial direction of the pen holder along with the pressing of the pressing rod;

when the pressing spring is compressed, the pen point extends out of the opposite front side of the penholder along the axial direction of the penholder, and the pen cover is in an open state; when the original shape is recovered according to the pressure spring, the pen point retracts into the pen holder, and the pen cover is in a closed state.

Optionally, the pen holder is a detachable structure, including:

a front pen holder;

the middle pen holder is detachably connected with the front pen holder;

the rear penholder is detachably connected with the middle penholder;

the pressing rod is movably arranged on the rear penholder;

the pen point sleeve is characterized in that a section, which is relatively close to the rear, in the axial direction of the pen holder is arranged on the middle pen holder, and a section, which is relatively close to the front, is arranged on the front pen holder.

Wherein the pen cap is arranged on the front pen holder.

The existing pen achieves the purpose of covering the pen point through a pen cap. However, in practical applications, many users often put the pen cap on one side instead of sleeving the pen cap on the rear end of the pen after opening the pen cap, and when many documents are written on a desk, the pen cap is easily shielded, so that the user often needs to take some turns when looking for the documents, and even more, the user may feel more anxious and more urgent when looking for the documents because the pen cap is clamped in the documents, and the user cannot look for the documents more urgent, so that the pen point is exposed in the air for a long time. The pen convenient to open and close is characterized in that the pen cap and the pen holder are arranged together, the pen cap is opened and closed or closed by rotating one side of the pen cap, and the pen cap connected with the elastic piece is rotated and closed by utilizing the elastic restoring force generated after the pen point is retracted into the pen channel in the pen holder from the outside.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, 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 according to the drawings without creative efforts.

Fig. 1 is an exploded structural view of a cartridge according to an embodiment of the present invention.

Fig. 2 is a structural view of a view angle of a middle barrel according to an embodiment of the present invention.

Fig. 3 is a structural view of another perspective of the middle barrel according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a rear barrel, and a pressing channel and a pressing stopper provided in the rear barrel according to an embodiment of the present invention.

Fig. 5 is an exploded view of the pressing rod, the pen body and the pen tip according to an embodiment of the present invention.

Fig. 6 is an exploded view of the installed pressing rod, the pen body and the pen nib, the nib cover installed with the elastic piece composed of the first and second elastic dividing pieces, and the front barrel according to an embodiment of the present invention.

Fig. 7 is a structural view of an elastic sheet according to an embodiment of the present invention.

Fig. 8 is an exploded view illustrating a pressing rod, a pen body and a pen nib, a nib cover mounted with an elastic piece composed of a first elastic dividing piece, a second elastic dividing piece and an arc-shaped elastic dividing piece, and a front pen barrel, which are engaged with each other according to another embodiment of the present invention.

Fig. 9 is a structural view of a front barrel according to another embodiment of the present invention.

Fig. 10 is a structural view of an elastic sheet according to another embodiment of the present invention.

Fig. 11 is a structural view illustrating a front barrel equipped with a nib cover, a cap and an elastic sheet according to another embodiment of the present invention.

The figures are for illustrative purposes only and are not intended to be drawn to scale. In the drawings, like reference numerals are used to indicate like elements. For purposes of clarity, not every component may be labeled in every drawing.

Detailed Description

The utility model will be described below with reference to several examples. It is to be understood that these embodiments are described in order to enable others skilled in the art to better understand and implement the present invention, and are not intended to represent or imply any limitation on the scope of the present invention.

The pen convenient to open and close is provided with one embodiment of the utility model. As shown in fig. 1 to 11, the pen includes a pen holder 100, a pen body 200, a pen nib 300, a pen cap 400, and a pressing member 600, the pressing member 600 drives the pen nib 300 to move forward and backward along an axial direction a of the pen holder 100, the pen cap 400 is opened by rotating the pen nib 300 by moving outward, the elastic sheet 500 connected to the pen cap 400 is elastically deformed when opened by rotating, and an elastic restoring force is provided to close the pen cap 400 by rotating when the pen nib 100 retracts.

As shown in fig. 1, 2, 3, 4 and 9, the barrel 100 is a hollow structure, a pen passage is formed along the axial direction of the barrel 100 by the inner wall of the barrel 100, the front side and the rear side of the pen passage along the axial direction a of the barrel 100 are communicated with the outside, and the barrel 100 includes a front barrel 110, a middle barrel 120 and a rear barrel 130 which are coaxially arranged. The front barrel 110 is inserted into the middle barrel 120 in an inserting manner along the opposite front side of the axial direction a of the barrel 100, and the middle barrel 120 along the opposite rear side of the axial direction a of the barrel 100 is connected with the rear barrel 130 along the opposite front side of the axial direction a of the barrel 100 in a threaded manner.

In order to prevent the rotation of the front barrel 110 after the front barrel 110 and the middle barrel 120 are inserted, as shown in fig. 1, 2 and 9, in one example, a rotation stopping protrusion 111 is protruded radially inward on an inner wall of the front barrel 110, and accordingly, a rotation stopping insertion groove 121 into which the rotation stopping protrusion 111 is inserted is formed on the middle barrel 120. Of course, the arrangement positions of the rotation stopping insertion slot 121 and the rotation stopping projection 111 can be changed as required.

As shown in fig. 5, 6, and 8, the pen body 200 is a hollow structure, is disposed in the pen channel along the axial direction of the pen holder, and includes a front pen body 210, a middle pen body 220, and a rear pen body 230, which are coaxially disposed, and are connected end to end in an inserting manner. The ink cartridge is mainly fixed to the middle body 220 in the axial direction of the barrel 100.

As shown in fig. 4, 6 and 8, the nib 300 is inserted into the front body 210 at a position opposite to the front side in the axial direction of the barrel 100, and communicates with an ink cartridge provided in the middle body 220. The nib 300 is mainly disposed at a section of the pen path formed by the front barrel 110.

As shown in fig. 6 and 7, the elastic sheet 500 is composed of two segments, the two segments form an included angle less than or equal to 180 degrees, the one segment is a first elastic splitting sheet 510 in a linear shape, and the other segment is a second elastic splitting sheet 520 in a linear shape. The length direction of the first elastic dividing plate 510 is arranged along the direction of the rotational connection side of the pen cap 400 to the free side of the pen cap 400, and the length direction of the second elastic dividing plate 520 is arranged along the axial direction of the pen holder 100. The first elastic separating sheet 510 is fixed on the pen cap 400, and the length of the first elastic separating sheet 510 is substantially the same as the maximum distance between the front side and the rear side of the pen cap 400 along the length direction of the first elastic separating sheet 510. The second resilient sheet 520 is fixed to the inner wall of the front barrel 110.

In addition, the ratio of the width of the first elastic dividing plate 510 to the maximum distance between the front side and the rear side of the pen cap 400 along the width direction of the first elastic dividing plate 510 ranges from one fifth to one half. Therefore, the supporting area of the first elastic separating sheet 510 for the pen cap 400 can be ensured, the force of the first elastic separating sheet 510 pushing the pen tip 300 outwards due to the overlarge width can be prevented, the work required by the user in the operation process is increased, and the pen tip 300 is easily damaged.

In addition, as shown in fig. 6 and 8, in one or more examples, the first elastic dividing plate 510 is disposed on a side of the cap 400 adjacent to the nib 300, and the first elastic dividing plate 510 is not completely attached to the cap 400, but only a side of the first elastic dividing plate 510 adjacent to the second elastic dividing plate 520 is fixedly connected to the cap 400, the first elastic dividing plate 510 is disposed obliquely downward with respect to the cap 400, at this time, an included angle is formed between the first elastic dividing plate 510 and a side of the cap 400 adjacent to the nib 300, and the included angle is required to be satisfied, and at least a free side of the first elastic dividing plate 510 is always in contact with the nib 300 during the opening of the cap 400. In this way, in the process of opening the pen cap 400, the first elastic separating sheet 510 can always receive the forward acting force of the pen tip 300 on the first elastic separating sheet, so that the pen tip 300 has good operation stability in the pushing-out process, and the first elastic separating sheet 510 generates sufficient plastic deformation, which is beneficial for the first elastic separating sheet 510 to have enough elastic restoring force to drive the pen cap 400 to rotate and close after the pen tip 300 retracts.

It should be noted that, the first elastic splitting piece 510 is disposed obliquely downward relative to the pen cap 400, which is beneficial to reduce the degree of the first included angle formed by the first elastic splitting piece 510 and the second elastic splitting piece 520, and when elastic deformation occurs, the degree of the second included angle is also correspondingly reduced, which is beneficial to improve the plasticity of the elastic piece 500. In addition, the distance between the first shrapnel 510 and the pen point 300 is shortened, so that the first shrapnel 510 can be pushed earlier in the process of pushing out the pen point, and the pen cover 400 connected with the first shrapnel 510 can be opened earlier.

In order to better fit the first spring piece 510 when the pen tip moves outward, in one example, the included angle formed by the first spring piece 510 and the side surface of the pen cap 400 adjacent to the pen tip 300 is controlled to be less than 70 degrees. Therefore, the pen tip 300 can contact with more parts of the first elastic dividing plate 510 in the process of pushing outwards, that is, the action area is increased, which is beneficial to pushing the first elastic dividing plate 510 to rotate outwards. In addition, in view of increasing the effective area, the length of the first fragment 510 may be considered as long as possible while satisfying the rotation thereof in the pen channel in the front pen holder 110. Of course, the included angle formed between the first elastic splitter 510 and the side surface of the pen cap 400 adjacent to the pen tip 300 preferably satisfies the following condition: that is, when the cap 400 is completely opened (in which the cap 400 is disposed in a direction substantially parallel to the axial direction of the barrel 100), the front surface of the nib 300 is substantially parallel to the first elastic piece 510, which is deformed at this time

Is controlled to be not less than the inclination angle of the front side surface of the pen point

Within 30 to 50 degrees, so that it is possible to realize that the writing part of the nib 300 is pushed out to the outside

From the viewpoint of maintenance convenience, as an optimization, the connection between the elastic sheet 500 and the front pen holder 110 and the pen cap 400 is also a detachable connection structure design, such as insertion, buckling, or clamping, and at this time, the fixing refers to that the positions of the two components connected during connection are relatively fixed, and the fixing does not only include non-detachable connection such as welding, riveting, and the like.

It should be noted that, on one hand, the elastic sheet 500 needs to have a certain rigidity to support the pen cap 400, and on the other hand, needs to have a material with a strong plasticity so that the generated deformation can be rapidly restored after the external force is lost, and a solid metal material such as steel is usually selected. When the pen tip 300 is to be used, the pen tip 300 extends out of the front pen holder 110 along the axial direction of the pen holder 100 to the outside so as to write, in the process that the pen tip 300 extends out, the pen cap 400 is opened by pushing the closed pen cap 400 outwards, at this time, the included angle formed between the first elastic dividing plate 510 and the second elastic dividing plate 520 is also enlarged (but still kept less than or equal to 180 degrees), so that the deformation caused by the change of the included angle enables the first elastic dividing plate 510 to have elastic restoring force in the opposite direction, so that when the pen tip 300 retracts back to the pen passage in the front pen holder 110 from the outside, the pen cap 400 is driven to rotate to close so as to separate the pen tip 300 from the outside, and the loss rate of ink in the ink cartridge due to the fact that the pen tip 300 is always exposed to the outside air can be reduced.

In the structure of the elastic piece 500, since the included angle is often changed, the joint of the first elastic splitting piece 510 and the second elastic splitting piece 520 is easily broken due to multiple bending, and in order to enhance the flexibility resistance and the fatigue resistance, preferably, the connection portion of the first elastic splitting piece 510 and the second elastic splitting piece 520 forms an arc transition structure. Of course, in order to enhance the working strength of the elastic sheet 500, the first elastic dividing sheet 510, the second elastic dividing sheet 520 and the connecting portion are integrally formed.

Of course, in addition to the above-described curved transition structure, there may be other methods of enhancing the flexure resistance and fatigue resistance of the elastic sheet 500, as shown in figures 8 and 10, in one example, the elastic piece 500 is provided with an arc-shaped spring splitting piece 530 in a circular arc structure between the first spring splitting piece 510 and the second spring splitting piece 520 in addition to the first spring splitting piece 510 and the second spring splitting piece 520, the angle corresponding to the arc-shaped striking-separating piece 530 is greater than or equal to 270 degrees and less than 360 degrees, the first elastic dividing plate 510 is arranged along a tangential direction tangent to one end of the arc-shaped elastic dividing plate 530, one end of the first elastic dividing plate 510 is fixedly connected with one end of the arc-shaped elastic dividing plate 530, the second elastic dividing plate 520 is arranged along a tangential direction tangent to the other end of the arc-shaped elastic dividing plate 530, and one end of the second elastic dividing plate 520 is fixedly connected with the other end of the arc-shaped elastic dividing plate 530. In addition, the first dome shunt 510 and the second dome shunt 520 are not located on the same plane, and are arranged in a crossed and parallel manner in space.

Preferably, the angle corresponding to the arc-shaped striking-separating piece 530 is greater than or equal to 280 degrees and less than or equal to 340 degrees.

In addition, in order to facilitate the connection between the second resilient tab 520 and the barrel 100, the second resilient tab 520 is disposed parallel to the axial direction of the barrel 100.

Of course, in order to enhance the working strength of the elastic sheet 500, the first elastic dividing plate 510, the second elastic dividing plate 520 and the arc-shaped elastic dividing plate 530 are integrally formed.

It should be noted that the arc-shaped striking-separating plate 530 may have a non-arc-shaped structure besides the arc-shaped structure. In addition, in order to enhance the flexibility and fatigue resistance of the elastic piece 500, in addition to the arc-shaped elastic dividing piece 530, a spiral elastic dividing piece (not shown) wound in a cylindrical spiral shape with an equal height may be used. Of course, the spiral spring-dividing sheet can be wound into other spiral forms, such as a conical spiral, etc., according to the requirement.

As shown in fig. 8 and 11, in order to install the arc-shaped minute striking plate 530 or the spiral minute striking plate on the front barrel 110, an installation groove 111 is formed on an outer side of the front barrel 110. During installation, as shown in fig. 9, the arc-shaped elastic dividing piece 530 is vertically placed in the installation groove 111, and if the arc-shaped elastic dividing piece is the spiral-shaped elastic dividing piece, the arc-shaped elastic dividing piece is horizontally placed. Thus, the function of enhancing the flexibility and fatigue strength can be exerted. When in use, the arc-shaped elastic dividing piece 530 or the spiral-shaped elastic dividing piece interacts with a corresponding inner wall of the mounting groove 111 to keep balance.

In addition, from the perspective of facilitating the integrated manufacturing, when the arc-shaped elastic dividing plate 530 is used, the sum of the width of the first elastic dividing plate 510 and the width of the second elastic dividing plate 520 is the same as the width of the arc-shaped elastic dividing plate 530, and the width of the first elastic dividing plate 510 and the width of the second elastic dividing plate 520 are also substantially the same. When the spiral spring-dividing piece is used, the width of the spiral spring-dividing piece is substantially the same as the width of the first spring-dividing piece 510 and the width of the second spring-dividing piece 520. Of course, the design that the width of the first elastic splitting sheet 510 is substantially the same as the width of the second elastic splitting sheet 520 is also beneficial to making the distribution of the elastic sheet 500 more uniform when the elastic sheet is stressed. Is favorable for keeping better plastic deformation capability.

It should be noted that the mounting groove 111 is a through groove, that is, one side of the through groove is communicated with a section of the pen channel corresponding to the front pen holder 110, and the corresponding side is communicated with the outside. Such arrangement is advantageous for observing whether the arc-shaped striking-separating piece 530 or the spiral striking-separating piece installed in the installation groove 111 is normal.

The cap 400, in one example, one side of the cap 400 is rotatably connected to the inner wall of the front barrel 110, and the other corresponding side is a free side for isolating the pen point from the outside.

It should be noted that the cap 400 may also be fixedly connected to the first resilient tab 510, but not rotatably connected to the inner wall of the front barrel 110. Of course, if the cap 400 is rotatably connected to the inner wall of the front barrel 110, the stability of the cap 400 during rotation may be improved.

As shown in fig. 6 and 8, in one example, the tip on the pen tip 300 is disposed adjacent to the free side of the pen cap 400. Thus, when the pressing component is pressed, the tip of the pen point 300, namely the peripheral part close to the tip of the pen point can firstly act with the pen cap 400 so as to push the pen cap 400 to rotate and open as soon as possible.

As shown in fig. 11, to protect the cap 400 from external influences, in one example, the cap 400 is disposed within the pen channel, and the cap 400 is always positioned within the pen channel when rotated open and rotated closed. That is, any portion of the cap 400 is located within the pen channel when the cap 400 is rotated open and rotated closed.

Since the pen passage is communicated with the outside along both front and rear sides of the axial direction of the cartridge 100, the ink on the nib 300 may be emitted through the opposite rear side of the pen passage. In addition, since the cap 400 rotates in the pen channel, the covering surface of the cap 400 for covering the pen tip 300 is designed to be smaller than the area of the cross section of the corresponding pen channel. As shown in fig. 6, 8 and 11, in one example, a nib cover 140 is added in the barrel 100, and is arranged along the axial direction of the barrel 100 and is sleeved on the radial outer side of the nib 300, the opposite rear side of the nib cover 140 along the axial direction of the barrel 100 is placed on an annular support platform 122 which is arranged on the inner wall of the middle barrel 120 in a protruding manner, and the opposite front side enters a section of the pen channel formed in the front barrel 110 and abuts against the inner wall of the front barrel 110, so that the nib cover 140 can reduce the probability of movement during the use process. In addition, the length of the nib holder 140 ensures that the opposite front side of the nib 300 after retraction does not protrude beyond the opposite front side of the nib holder 140, so that the cap 400 can be engaged with the opposite front side of the nib holder 140 when fully closed.

It should be noted that, after the structure of the nib holder 140 is adopted, as shown in fig. 6 and 8, in one or more examples, the cap 400 is connected to the nib holder 140, and is not required to be connected to the front barrel 110.

In addition, after the structure of the nib cover 140 is adopted, as shown in fig. 6 and 8, in one or more examples, the second resilient tab 520 of the spring 500 may be fixed on the outer side of the nib cover 140 without being fixed on the pen shaft 100, and since the spring 500 is a vulnerable component which is often used, the spring 500 may be replaced only when the spring 500 is not used. In addition, in order to prevent the nib cover 140 from rotating during use, as shown in fig. 2, in one example, a spring plate positioning slot 123 for inserting a part of the second spring plate 520 of the spring plate 500 is formed at the front side of the middle barrel 120.

As shown in fig. 6 and 8, in order to be adapted to the front side of the pen tip 300, the front side of the pen tip holder 140 is an inclined oval inclined surface which is substantially parallel to the front side of the pen tip 300. From another perspective, the inclined arrangement of the front side surface of the pen-tip sheath 140 can reduce the rotation angle of the pen cover 400 when the pen cover 400 is rotated to be opened, which is beneficial to reduce the rotation angle of the first elastic separating sheet 510 fixedly connected with the pen cover 400, and thus beneficial to reduce the deformation range of the elastic sheet 500, so as to be beneficial to prolonging the service life of the elastic sheet 500.

And the pressing component is similar to a pressing structure in a mechanical pencil and a mechanical ball-point pen. As shown in fig. 4, 5, 6 and 8, in one example, the pressing assembly includes a pressing rod 610, a pressing slider 620, a pressing channel 630, a pressing stopper 640, and a pressing spring (not shown).

As shown in fig. 5, 6 and 8, the pressing rod 610 is movably connected to the rear side of the rear barrel 230 in the axial direction of the barrel 100, and the rear side of the pressing rod 610 in the axial direction of the barrel 100 is protruded to the rear side of the rear barrel 130 in the axial direction.

As shown in fig. 4, 5, 6 and 8, the pressing sliders 620 are protruded from the radial outer side of the pressing rod 610, are provided in a plurality of numbers, have the same interval therebetween, and form a circle to wind around the radial outer side of the pressing rod 610. A pressing channel 630 for the pressing slider 620 to slide forward and backward along the axial direction of the barrel 100 is formed on the inner wall of the rear barrel 130. The number of the pressing channels 630 is 4, which is the same as the number of the pressing sliders 620, and a pressing stopper 640 is disposed between the opposite front sides of the adjacent pressing channels 630, and when the pressing sliders 620 slide forward along the axial direction of the pen shaft 100 out of the pressing channels 630, they are engaged with the pressing stoppers 640, so that the position of the pressing rod 610 remains unchanged, and at this time, the pen tip 300 is extended out of the pen shaft 100, and is in a writable state. When the pressing rod 610 continues to move forward along the axial direction of the pen holder 100 under the pressing action, the pressing slider 620 is separated from the pressing stopper 640 and enters one of the corresponding pressing channels 630 again, and after the pressing force is lost, the deformed pressing spring generates an elastic restoring force on the pen body 200 to push the pen body 200 to move backward along the axial direction of the pressing rod pen holder 100, so that the pressing slider 620 on the pressing rod 610 matched with the rear pen body 230 also moves backward along with the rear pen body 230, and at this time, the pen tip 300 is also retracted into the front pen holder 110.

In the claims, the word "comprising" does not exclude other elements or steps; the word "a" or "an" does not exclude a plurality. Use of ordinal terms such as "first," "second," etc., in the claims to modify a claim element does not by itself connote any priority, order, or temporal order of execution of one claim element over another, but are used merely for distinguishing one claim element from another. Although certain features may be described in different dependent claims, this does not imply that these features cannot be used in combination. Various aspects of the present invention may be used alone, in combination, or in a variety of arrangements not specifically discussed in the embodiments described in the foregoing and is therefore not limited in its application to the details and arrangement of components set forth in the foregoing description or illustrated in the drawings. For example, aspects described in one embodiment may be combined in any manner with aspects described in other embodiments. The steps, functions or features recited in a plurality of modules or units may be performed or satisfied by one module or one unit. The steps of the methods disclosed herein are not limited to being performed in any particular order, as some or all of the steps may be performed in other orders. Any reference signs in the claims shall not be construed as limiting the scope of the claims.

While the utility model has been described by way of illustration and example, such description and illustration should be considered illustrative or exemplary and not restrictive. Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the utility model as disclosed in the accompanying claims.

Claims

1. A pen convenient to open and close, comprising:

the pen holder is of a hollow structure;

2. The pen of claim 1, wherein the resilient member comprises:

the first elastic segment is connected with the pen cap;

a second resilient segment; is connected with the penholder;

3. The pen of claim 2, wherein the resilient member further comprises:

the two ends of the arc-shaped elastic section or the spiral-shaped elastic section are arranged in different directions, one end of the arc-shaped elastic section or the spiral-shaped elastic section is fixedly connected with the first elastic section arranged along the tangential direction tangent to the one end, and the other end of the arc-shaped elastic section or the spiral-shaped elastic section is fixedly connected with the second elastic section arranged along the tangential direction tangent to the other end.

4. A pen which is convenient to open and close according to claim 3, wherein:

the arc-shaped elastic section or the spiral elastic section is arranged in an installation groove formed in the pen holder, and the installation groove is used for enabling the arc-shaped elastic section or the spiral elastic section to abut against the pen cover in the opening process.

5. A pen which is convenient to open and close according to claim 3, wherein:

the width of the first resilient segment is substantially the same as the width of the second resilient segment;

6. A pen convenient to open and close according to any one of claims 2 to 5, wherein:

the length of the first elastic section is basically the same as the maximum distance between the front side and the rear side of the pen cap arranged along the length direction of the first elastic section;

7. A pen convenient to open and close according to any one of claims 2 to 5, wherein:

one side of the first elastic section, which is adjacent to the second elastic section, is connected with the pen cap;

8. The pen convenient for opening and closing according to any one of claims 1 to 5, further comprising:

wherein the tip on the nib is disposed adjacent to the free side of the cap.

9. A pen which is easy to open and close according to claim 8, wherein:

the side face of the opposite front side of the pen point sleeve along the axial direction of the pen holder is obliquely arranged and is basically parallel to the side face of the opposite front side of the pen point along the axial direction of the pen holder;

10. The pen of claim 1, wherein the pressing assembly comprises:

11. A pen as claimed in claim 10, wherein the pen holder is of a detachable structure, comprising:

a front pen holder;

the middle pen holder is detachably connected with the front pen holder;

the rear penholder is detachably connected with the middle penholder;

the pressing rod is movably arranged on the rear penholder;

the section of the pen point sleeve, which is relatively back along the axial direction of the pen holder, is arranged on the middle pen holder, and the section, which is relatively front, is arranged on the front pen holder;

wherein the pen cap is arranged on the front pen holder.