Writing pen capable of being telescopically positioned

Abstract

The writing pen comprises a pen holder and a pen cap which is detachably connected to the tail end of the pen holder and is of a cylindrical structure, a driving piece partially located outside the pen cap is rotationally arranged in the tail of the pen cap, a driven piece is in threaded connection with the inner wall of the front end of the pen cap, and the tail of the driven piece is slidably connected to the driving piece. The driven part is driven by rotation of the driving part to move forwards in a spiral mode, and a positioning part capable of being matched, clamped and positioned and a plurality of positioning holes formed in the circumferential direction of the pen cover or the driving part at intervals are arranged between the inner wall of the pen cover and the outer wall of the driving part. The extending length of the pen point of the pen refill can be positioned while the pen refill stretches out and draws back, the use requirements of different people are met, and the positioning structure is simple and practical.

Description

Technical Field

[0001] The invention relates to the field of stationery, in particular to a writing pen capable of being telescopically positioned. Background Art

[0002] Pens are indispensable tools for learning and office work in daily life. They are used in various industries and are available in various forms, including capped pens and retractable pens. The capped pen protects the tip of the pen core through the pen cap, but the length of the tip of the pen core extending from the front end of the pen shaft is fixed, and the pen cap needs to be taken off when in use, which is easy to be lost; although the retractable pen solves the problem of the pen cap being easily lost when taken off when in use, its extension is only fixed in one position, and it can be extended by pressing once and retracted by pressing again, and the length of the tip of the pen core extending from the front end of the pen shaft is also fixed; for people with different writing habits, it is impossible to adjust the length of the tip of the pen core according to the person, which causes inconvenience to the user, and it is impossible to realize the positioning of the tip of the pen core extending from the front end of the pen shaft at different lengths while extending and retracting. Summary of the invention

[0003] In view of the existing deficiencies, the present invention provides a writing pen which can be telescopically positioned.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a writing pen that can be telescopically positioned, comprising a pen body, a pen cap with a cylindrical structure that can be detachably connected to the rear end of the pen body, the pen cap is rotatably provided with an active member that is partially outside the pen cap, the pen cap is threadedly connected to the inner wall of the front end, the tail of the follower is slidably connected to the active member, and the follower moves forward in a spiral under the rotation of the active member, and a positioning member that can match and engage in positioning and a plurality of positioning holes that are spaced around the circumference of the pen cap or the active member are provided between the inner wall of the pen cap and the outer wall of the active member.

[0005] Preferably, a pen cap hole is provided on the inner wall of the pen cap, the positioning member is a retractable positioning rod arranged in the pen cap hole, one end of the positioning rod is a ball head in a spherical or hemispherical structure which can extend out of or retract into the pen cap hole; a first telescopic spring is sleeved on the positioning rod; the positioning hole is a positioning hole provided on the outer wall of the active member which can match and engage with the ball head, and a plurality of the positioning holes are arranged around the circumference of the active member.

[0006] Preferably, the pen cap hole is a threaded through hole penetrating the side wall of the pen cap, a pen clip is detachably mounted in the pen cap hole via a connector, a connector hole is provided on the end surface of the connector facing the center of the pen cap, and the positioning rod and the first telescopic spring are mounted in the connector hole.

[0007] Preferably, a first groove is provided on the outer wall of the active member and surrounds the active member in a circumferential direction, and the positioning hole is provided at the bottom of the first groove.

[0008] Preferably, the front end outer wall of the follower is provided with a first external thread, the front end inner wall of the pen cap is provided with a first internal thread, and the first internal thread and the end of the front end of the pen cap are separated by a non-threaded area.

[0009] Preferably, the tail section of the driven member is a regular polygonal structure, and the driving member is a cylindrical structure and is matched and engaged with the tail of the driven member.

[0010] Preferably, a sound insulation sleeve is provided between the pen cap and the active component and is sleeved on the outer wall of the active component.

[0011] Preferably, the side wall of the active member located outside the pen cap is provided with anti-slip grooves.

[0012] Preferably, the pen holder comprises a cylindrical pen holder body and a nib detachably connected to the front end of the pen holder body.

[0013] Preferably, a pen core is installed in the pen barrel, the tail of which is detachably connected to the follower, and a front end limiting sleeve of the pen core is provided with a second telescopic spring.

[0014] The beneficial effect of the present invention is that the present invention utilizes the rotation of the active member to drive the driven member to move forward in a spiral relative to the pen cover, thereby realizing the extension and retraction of the pen core, and when the driven member moves forward in a spiral, the positioning is realized by the engagement of the positioning member and the positioning hole between the pen cover and the active member, so that the forward position is positioned, thereby also positioning the length of the pen core's tip extending out of the front end of the pen shaft, and the whole structure is simple and practical, and can meet the usage needs of different people. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of a cross-sectional structure of a writing pen along the axis of the pen core according to an embodiment of the present invention;

[0016] Figure 2 Embodiment of the present invention Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0017] Figure 3 is a schematic structural diagram of a writing pen according to an embodiment of the present invention;

[0018] Figure 4 is a schematic diagram of the exploded structure of a writing pen according to an embodiment of the present invention;

[0019] Figure 5 is a schematic cross-sectional view of the positioning member and the connecting member structure of an embodiment of the present invention;

[0020] Figure 6is a schematic structural diagram of a pen cap according to an embodiment of the present invention;

[0021] Figure 7 It is a schematic diagram of the structure of the active component of an embodiment of the present invention;

[0022] Figure 8 is a schematic structural diagram of a follower according to an embodiment of the present invention;

[0023] Names and serial numbers of parts in the figure: 1-pen body 10-pen tip 11-pen body 12-pen core 13-second telescopic spring 2-pen cap 20-pen cap hole 21-first internal thread 22-non-threaded area 3-active part 30-first groove 31-anti-slip pattern 4-driven part 40-first external thread 5-positioning part 50-ball head part 51-first telescopic spring 6-positioning hole 7-pen clip 8-connecting part 80-connecting part hole 9-sound insulation sleeve. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the purpose, technical solutions and advantages of the embodiments of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments for a clear and complete description. Obviously, the embodiments described are partial embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0025] Embodiments of the present invention Figures 1 to 8As shown in the figure, a writing pen capable of telescopic positioning comprises a pen holder 1, a pen cap 2 of a cylindrical structure detachably connected to the rear end of the pen holder 1, the pen holder 1 is a hollow tubular structure and the diameter of the front end thereof gradually decreases, a second internal thread is arranged at the rear end of the inner wall thereof, a second external thread is arranged at the front end of the outer wall of the pen cap 2, and then the pen cap 2 is connected to the pen holder 1 through the matching threads of the second external thread and the second internal thread to form a pen shell of the writing pen, the pen holder 1 comprises a cylindrical pen holder body 11 and a pen head 10 detachably connected to the front end of the pen holder body 11, so that the pen head 10 can be removed and then removed from the pen head 1 0 to install the refill 12 in the pen body 11, and their detachable connection can be set at the tail of the inner wall of the pen head 10 to set the third external thread at the front end of the outer wall of the pen body 11, and then the threaded connection is realized by the cooperation of the third internal thread and the third external thread, and the disassembly and assembly is simple and convenient; a sealing ring can also be set at the tail position of the second external thread of the pen cap 2 to connect the pen body 1 to the pen cap 2 more tightly. When in use, the refill 12 is installed in the pen body 1, the tip of the refill 12 extends from the front end of the pen body 1, and the tail of the refill 12 is detachably connected to the follower 4, and the pen The front end limit sleeve of the core 12 is provided with a second telescopic spring 13, that is, the second telescopic spring 13 is sleeved at the tip of the core 12, and the body of the core 12 forms a blocking limit for the tail end of the second telescopic spring 13. After the core 12 is installed in the pen holder 1, the front end of the second telescopic spring 13 presses against the inner wall of the front end of the pen holder 1, that is, the inner wall of the pen tip 10. The second telescopic spring 13 is used to enable the core 12 to apply an upward force to the follower 4 to maintain the stability of the sliding connection structure between the follower 4 and the active member 3. At this time, a spring is provided on the front end face of the follower 4. The pen cap 2 is rotated in the tail portion and an active member 3 partially outside the pen cap 2 is arranged. The active member 3 is arranged in a cylindrical structure with a closed tail end, that is, the front portion of the active member 3 is located in the tail portion of the pen cap 2 and can rotate relative to the pen cap 2, and the tail portion of the active member 3 is exposed outside the pen cap 2. At this time, the diameter of the tail portion of the active member 3 is larger than the caliber of the tail portion of the pen cap 2, so that the tail and front portions of the active member 3 form a step, which will abut against the end surface of the tail end of the pen cap 2, so as to prevent the active member 3 from falling into the pen cap 2;When in use, the active member 3 can be rotated relative to the pen cap 2 by pinching the exposed part of the active member 3 with the hand, and in order to prevent slipping, the side wall of the active member 3 outside the pen cap 2 is provided with an anti-skid pattern 31, that is, the anti-skid pattern 31 is provided on the side wall of the tail of the active member 3, and the anti-skid pattern 31 can be composed of a plurality of strip-shaped protrusions or convex points arranged at intervals. The pen cap 2 is threadedly connected with a follower 4 on the inner wall of the front end. The follower 4 is installed in the pen cap 2 and is threadedly connected to the inner wall of the front end of the pen cap 2. Their threaded connection is to set the first outer wall of the front end of the follower 4. An external thread 40 is provided on the inner wall of the front end of the pen cap 2, and then a threaded connection is achieved through the cooperation of the first external thread 40 and the first internal thread 21. At this time, the first internal thread 21 and the end of the front end of the pen cap 2 are separated by a non-threaded area 22, so that the follower 4 can be separated from the threaded connection with the pen cap 2 after the spiral movement forward, which is convenient for the disassembly and assembly of the follower 4. The tail of the follower 4 is slidably connected to the active member 3, and the follower 4 is spirally moved forward under the rotation of the active member 3. That is to say, the front end of the follower 4 is threadedly connected to the pen cap 2 in the pen cap 2, and the tail of the follower 4 is threadedly connected to the pen cap 2. The end is slidably arranged in the active member 3, and at the same time, it can move forward in a spiral in the pen cap 2 as the active member 3 rotates, that is, the driven member 4 can only slide along the axial direction of the active member 3 and cannot rotate relative to the active member 3. As the active member 3 rotates, the active member 3 drives the driven member 4 to rotate relative to the pen cap 2. Since the driven member 4 and the pen cap 2 are threadedly connected, during the rotation, the driven member 4 moves forward in a spiral relative to the pen cap 2, and the spiral forward movement makes the driven member 4 slide forward relative to the active member 3. In this way, the rotation of the active member 3 is used to drive the driven member 4 to move forward in a spiral relative to the pen cap. Thus, the retractable pen core 12 is realized; a positioning member 5 that can be matched and engaged is provided between the inner wall of the pen cap 2 and the outer wall of the active member 3, and a plurality of positioning holes 6 that are arranged around the pen cap 2 or the active member 3 at intervals, that is, the pen cap 2 and the active member 3 are positioned by the matching engagement of the positioning member 5 and the positioning hole 6, and the positioning member 5 and the positioning hole 6 are correspondingly arranged on the pen cap 2 or the active member 3 according to different usage requirements. Such a positioning structure is simple and practical, and the length of the pen tip of the pen core 12 extending out of the front end of the pen shaft 1 can also be positioned, thereby meeting the usage requirements of different people. ;

[0026] Further improvements such as Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown in , a pen cap hole 20 is provided on the inner wall of the pen cap 2, and the positioning member 5 is a retractable positioning rod arranged in the pen cap hole 20, one end of the positioning rod is a ball head 50 in a spherical or hemispherical structure that can extend or retract into the pen cap hole 20, and a first telescopic spring 51 is sleeved on the positioning rod, that is, the positioning member 5 is installed in the pen cap hole 20 on the pen cap 2, and the ball head of the positioning member 5 can partially or completely extend or retract into the pen cap hole 20, and the two ends of the first telescopic spring 51 are correspondingly connected to the positioning member 5 and the inner wall of the pen cap hole 20, as shown in FIG. Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown in the figure, the positioning hole 6 is a positioning hole arranged on the outer wall of the active component 3 and can match and engage with the ball head 50. At this time, multiple positioning holes 6 are arranged at intervals at the front end of the outer wall of the active component 3, and multiple positioning holes 6 are arranged around the circumference of the active component 3. Preferably, multiple positioning holes 6 are arranged at equal intervals. When the first telescopic spring 51 is not stretched or compressed, part of the ball head 50 is outside the pen cover hole 20 and is in an engaged state with the positioning hole 6. When the active component is rotated, the ball head 50 is pressed back into the pen cover hole 20 to disengage from the positioning hole 6. The positioning hole 6 is a hemispherical blind hole matching the ball head 50, or it can be a through hole with a spherical table-shaped outer side (adjacent to the ball head side) having a larger aperture than the inner side aperture. At this time, the pen cap hole 20 is a through hole that penetrates the side wall of the pen cap 2. The pen clip 7 is detachably installed in the pen cap hole 20 through the connecting member 8. The pen clip through hole is set on the pen clip 7, and then the pen clip through hole and the pen cap hole 20 are aligned. Then, the connecting member 8 is passed through the pen clip through hole and connected to the pen cap hole 20 to realize the connection between the pen clip 7 and the pen cap 2. If the connecting member 8 is a connecting rod that can match and fit in the pen cap hole 20, when the pen cap hole 20 is set as a threaded through hole, the connecting member 8 can be selected as a bolt, and is threadedly connected to the pen cap hole 20 by the bolt, such as Figure 5 As shown in , a connector hole 80 is provided on the end face of the connector 8 facing the center of the pen cap 2, that is, the end face facing the axis of the pen cap 2, the positioning rod and the first telescopic spring 51 are installed in the connector hole 80, and the connector hole 80 is set as a blind hole. The end face of the connector 8 facing the center of the pen cap is extended out of the inner end of the pen cap hole 20, so that the positioning rod is movably installed in the connector hole 80 of the connector 8, which simplifies the structural setting on the pen cap 2, and the two ends of the first telescopic spring 51 are correspondingly connected to the positioning rod and the hole wall of the connector hole 80. Figure 7 As shown in the figure, a first groove 30 is provided on the outer wall of the active member 3 and surrounds the active member 3 in a circumferential direction, and a positioning hole 6 is provided at the bottom of the first groove 30, so that a large gap will not be generated between the outer wall of the active member 3 and the inner wall of the pen cap 2 at a position where the first groove 30 is not provided, while also ensuring the movable space of the positioning member 5.

[0027] Further improvements such as Figure 4 , Figure 7 and Figure 8As shown in , for the connection structure of the follower 4 and the active member 3, the tail section of the follower 4 is a regular polygonal structure, the active member 3 is a cylindrical structure and is matched and engaged with the tail of the follower 4 at the tail, that is, the tail of the follower 4 is in the shape of a regular polygonal column, the active member 3 is a cylindrical structure, and the inner ring of its tail is also a regular polygonal structure, which has the same number of sides as the follower 4, such as both are regular hexagonal structures. At this time, the follower 4 is inserted into the active member 3 so that the two are matched and engaged together at the tail. The polygonal structure of the tails of the two prevents the follower 4 from rotating relative to the active member 3, but the follower 4 can slide along the axial direction of the active member 3, so that when the active member 3 rotates, it will bring the follower 4 to rotate, and the rotation of the follower 4 will spiral forward relative to the pen cap 2, and the follower 4 will slide forward relative to the active member 3.

[0028] Further improvements such as Figure 2 and Figure 4 As shown in the figure, a sound insulation sleeve 9 is arranged between the pen cap 2 and the active part 3 and is sleeved on the outer wall of the active part 3. The sound insulation sleeve 9 is made of plastic, which can reduce the friction sound when the active part 3 and the pen cap 2 rotate relative to each other, especially the metal friction sound when the active part 3 and the pen cap 2 are both made of metal materials.

[0029] Although the present invention has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present invention. Therefore, these modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A writing pen capable of being retracted and positioned, characterized in that: The utility model comprises a pen body and a pen cap of a cylindrical structure which is detachably connected to the rear end of the pen body, wherein the pen cap is provided with an active member which is partially outside the pen cap and which is rotatably arranged in the rear end, and a follower is threadedly connected to the inner wall of the front end of the pen cap, and the rear end of the follower is slidably connected to the active member, and the follower moves forward in a spiral under the rotation of the active member, and a positioning member which can match and engage in positioning and a plurality of positioning holes which are arranged at intervals around the circumference of the pen cap or the active member are provided between the inner wall of the pen cap and the outer wall of the active member.

2. The telescopic writing pen according to claim 1, characterized in that : A pen cap hole is arranged on the inner wall of the pen cap, the positioning member is a retractable positioning rod arranged in the pen cap hole, one end of the positioning rod is a ball head in a spherical or hemispherical structure which can extend out of or retract into the pen cap hole; a first retractable spring is sleeved on the positioning rod; the positioning hole is a positioning hole arranged on the outer wall of the active member which can match and engage with the ball head, and a plurality of the positioning holes are arranged around the circumference of the active member.

3. The telescopic writing pen according to claim 2, characterized in that The pen cap hole is a threaded through hole that penetrates the side wall of the pen cap. A pen clip is detachably installed in the pen cap hole through a connecting piece. A connecting piece hole is provided on the end surface of the connecting piece facing the center of the pen cap. The positioning rod and the first telescopic spring are installed in the connecting piece hole.

4. The telescopic writing pen according to claim 2, characterized in that A first groove is arranged on the outer wall of the active component and surrounds the active component in a circumferential direction, and the positioning hole is arranged at the bottom of the first groove.

5. The telescopic writing pen according to claim 1, characterized in that: The front end outer wall of the follower is provided with a first external thread, the front end inner wall of the pen cap is provided with a first internal thread, and a non-threaded area is spaced between the first internal thread and the end of the front end of the pen cap.

6. The telescopic writing pen according to claim 1, characterized in that: The tail section of the driven member is in a regular polygonal structure, and the driving member is in a cylindrical structure and is matched and engaged with the tail of the driven member.

7. The telescopic writing pen according to claim 1, characterized in that A sound insulation sleeve is arranged between the pen cover and the active part and is sleeved on the outer wall of the active part.

8. The telescopic writing pen according to claim 1, characterized in that The side wall of the active part outside the pen cover is provided with anti-slip grooves.

9. The telescopic writing pen according to claim 1, characterized in that The pen holder comprises a cylindrical pen holder body and a pen head which is detachably connected to the front end of the pen holder body.

10. The telescopic writing pen according to any one of claims 1 to 9, characterized in that A pen core is installed in the pen holder, the tail of which is detachably connected to the follower, and a front end limiting sleeve of the pen core is provided with a second telescopic spring.

Images