Telescopic pen and telescopic mechanism thereof

Abstract

The utility model provides a telescopic pen and a telescopic mechanism thereof, the telescopic mechanism comprises a rotating sleeve, a connecting seat and a lifting seat, the rotating sleeve can be sleeved on the connecting seat in a circumferential rotation manner, the inner wall of the rotating sleeve is provided with an inner spiral part, the outer wall of the lifting seat is provided with an outer spiral part, and the outer spiral part is provided with a telescopic rod. The lifting base is vertically installed on the connecting base in a sliding mode, the outer spiral part is matched with the inner spiral part, the lifting base penetrates through the connecting base, a refill is detachably connected into the lifting base, and the rotary sleeve is sleeved with the pen cap. According to the telescopic pen and the telescopic mechanism thereof provided by the utility model, the rotary sleeve is spirally connected with the internal lifting seat, so that the lifting seat and the refill can be driven to ascend and descend when the pen cover rotates, and the lifting seat is matched with the connecting seat through the lifting part, so that the refill in the telescopic pen can be positioned at any height and cannot be stressed to retract during use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ballpoint pen, especially to a telescopic pen and its telescopic mechanism. BACKGROUND

[0002] The ballpoint pen is a writing tool and an indispensable stationery in life. The patent with the application number 201811467631.9 discloses a ballpoint pen, which belongs to the field of stationery and comprises a pen barrel and a pen core. The pen core comprises a pen tip, a pen tip seat and an ink tube connected in sequence. The pen barrel is a hollow tubular shell, which comprises a conical section and a cylindrical section. The pen core lifting device comprises a rotating sleeve, which is sleeved on the pen barrel and is threadedly connected with the pen barrel. The free end of the rotating sleeve is provided with an end cover, and the inner wall of the end cover is provided with a connecting sleeve. The connecting sleeve is detachably connected with the ink tube. The pen core, the pen barrel, the rotating sleeve and the connecting sleeve are coaxial. The rotating sleeve is provided with an anti-rotation structure. The structure can realize the pen core lifting function, but the pen core can only be kept at the maximum extension position and cannot be positioned at any height. During writing, the pen core will retract. SUMMARY

[0003] (I) Technical problem to be solved

[0004] The utility model wants to solve the problem of providing a telescopic pen and its telescopic mechanism to overcome the defect that the pen core of the telescopic pen in the prior art cannot be adjusted to any height positioning, resulting in inconvenience in use.

[0005] (II) Technical scheme

[0006] To solve the technical problem, the utility model provides a telescopic mechanism of telescopic pen, which comprises a rotating sleeve, a connecting seat and a lifting seat. The rotating sleeve can be circumferentially rotated and sleeved on the connecting seat. The inner wall of the rotating sleeve is provided with an inner spiral part. The outer wall of the lifting seat is provided with an outer spiral part. The lifting seat is vertically slidably installed on the connecting seat, and the outer spiral part cooperates with the inner spiral part. The lifting seat penetrates through the connecting seat and is detachably connected with a pen core inside. Rotating the rotating sleeve relative to the connecting seat, the rotating sleeve drives the lifting seat to lift through the cooperation of the inner spiral part and the outer spiral part, so as to realize the lifting of the lifting seat and the pen core.

[0007] In some embodiments, the connecting seat is provided with an annular groove, and the inner wall of the rotating sleeve is provided with an annular protruding rib. The protruding rib is matched in the annular groove, so that the rotating sleeve can rotate relative to the connecting seat. The rotating sleeve, the connecting seat and the lifting seat are coaxially arranged.

[0008] In some embodiments, the connecting seat is hollow inside, the bottom of the lifting seat is provided with a lifting part and the lifting part penetrates the connecting seat, the lifting seat is located above the lifting part and abuts against the connecting seat, the inside of the connecting seat is a regular hexagonal through hole, and the lifting part is a regular hexagonal column, so that the lifting seat cannot rotate relative to the connecting seat but can only move up and down.

[0009] In some embodiments, the connecting seat is provided with a flange and the flange is provided with an external thread below, the pen body is rotationally assembled on the external thread and the top of the pen body abuts against the flange.

[0010] In some embodiments, the lifting seat is hollow and the top of the lifting seat is provided with an internal thread, the refill is fixedly inserted on a connecting piece, the connecting piece is rotationally assembled on the internal thread, the top of the rotating sleeve is open, and the connecting piece penetrates the rotating sleeve.

[0011] In some embodiments, the bottom of the pen body is threadedly connected with a pen head, the pen head is provided with an opening, the bottom of the refill can penetrate the pen head, and the bottom of the pen cover abuts against the flange.

[0012] In some embodiments, the outer wall of the rotating sleeve is provided with a plurality of first rotation-stopping ribs, the inner wall of the pen cover is provided with a plurality of second rotation-stopping ribs, and the first rotation-stopping ribs and the second rotation-stopping ribs are matched to enable the pen cover to drive the rotating sleeve to rotate synchronously when the pen cover rotates.

[0013] The utility model also provides a retractable pen comprising the telescopic mechanism, the retractable pen comprises a pen body and a pen cover, the pen cover can rotate relative to the pen body, the pen cover is sleeved on the rotating sleeve, the pen body is rotationally assembled on the external thread and the top of the pen body abuts against the flange, the bottom of the pen body is threadedly connected with a pen head, the pen head is provided with an opening, the bottom of the refill can penetrate the pen head, the bottom of the pen cover abuts against the flange, the outer wall of the rotating sleeve is provided with a plurality of first rotation-stopping ribs, the inner wall of the pen cover is provided with a plurality of second rotation-stopping ribs, and the first rotation-stopping ribs and the second rotation-stopping ribs are matched.

[0014] (Three) beneficial effects

[0015] The utility model provides a telescopic pen and telescopic mechanism thereof, realize that the pen cover can drive the lifting seat and the refill to lift when rotating through the screw connection of rotating sleeve and internal lifting seat, and the lifting seat and the connecting seat are matched through the lifting part, so that the lifting seat cannot directly lift and rotate, so that the refill in the telescopic pen can be positioned at any height, and the telescopic pen is more convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0017] Fig. 1 It is a perspective view of a telescopic pen and a telescopic mechanism thereof according to the present application.

[0018] Fig. 2 It is a perspective view of a telescopic mechanism of a telescopic pen and a telescopic mechanism thereof according to the present application.

[0019] Fig. 3 It is a sectional view of a telescopic mechanism of a telescopic pen and a telescopic mechanism thereof according to the present application.

[0020] Fig. 4 It is a perspective view of a lifting seat of a telescopic pen and a telescopic mechanism thereof according to the present application.

[0021] Fig. 5 It is a perspective view of a connecting seat of a telescopic pen and a telescopic mechanism thereof according to the present application.

[0022] Fig. 6 It is a perspective view of a rotating sleeve of a telescopic pen and a telescopic mechanism thereof according to the present application.

[0023] The corresponding component names of various reference numerals in the drawings are as follows: 1, pen body; 2, pen cover; 3, rotating sleeve; 4, connecting seat; 5, lifting seat; 6, inner spiral part; 7, outer spiral part; 8, pen core; 9, annular groove; 10, convex rib; 11, lifting part; 12, flange; 13, outer thread; 14, inner thread; 15, connecting piece; 16, pen tip; 17, first rotation-stopping rib; 18, second rotation-stopping rib; 19, through hole. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described in detail below with reference to the drawings.

[0025] Following embodiments of the present application are illustrated by way of specific examples, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied by other different specific embodiments, and various modifications or changes can be made to the details in the specification without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] It is to be understood that the following description is exemplary of aspects within the scope of the appended claims. It is to be understood that the aspects described herein can be implemented in a wide variety of forms and that any particular structure and / or function described herein is merely exemplary. Based on the teachings herein one skilled in the art will appreciate that one aspect described herein can be implemented independently of any other aspects and that various implementations of two or more aspects can be desirably combined. For example, an apparatus can be implemented using any number of the aspects described herein. In addition, an apparatus can be implemented or a method can be practiced using other structure and / or functionality in addition to or other than one or more of the aspects described herein.

[0027] It is also to be understood that the following description is exemplary of aspects within the scope of the appended claims. It is to be understood that the aspects described herein can be implemented in a wide variety of forms and that any particular structure and / or function described herein is merely exemplary. Based on the teachings herein one skilled in the art will appreciate that one aspect described herein can be implemented independently of any other aspects and that various implementations of two or more aspects can be desirably combined. For example, an apparatus can be implemented using any number of the aspects described herein. In addition, an apparatus can be implemented or a method can be practiced using other structure and / or functionality in addition to or other than one or more of the aspects described herein.

[0028] In addition, in the following description, specific details are provided to thoroughly understand examples. However, one skilled in the art will understand that the application can be practiced without these specific details.

[0029] Referring to Figs. 1-6 The utility model provides a telescopic pen's telescopic mechanism, including rotating sleeve 3, connecting seat 4 and elevating seat 5, rotating sleeve 3 can be circumferential rotation and be installed on connecting seat 4, the inner wall of rotating sleeve 3 is equipped with inner spiral part 6, the outer wall of elevating seat 5 is equipped with outer spiral part 7, elevating seat 5 vertical sliding installation is installed on connecting seat 4 and outer spiral part 7 with inner spiral part 6 cooperation, elevating seat 5 passes through connecting seat 4 and inside detachable connection has the lead 8, rotating rotating sleeve 3 makes it relative connecting seat 4 rotation, rotating sleeve 3 passes through inner spiral part 6 with the cooperation of outer spiral part 7, drives elevating seat 5 to go up and down and realizes elevating seat 5 and the lead 8 go up and down.

[0030] In some embodiments, as shown in Figs. 2-5 The connecting seat 4 is provided with an annular groove 9, and the inner wall of the rotating sleeve 3 is provided with an annular convex rib 10 which is matched in the annular groove 9, so that the rotating sleeve 3 can rotate axially along the connecting seat 4. The rotating sleeve 3, the connecting seat 4 and the lifting seat 5 are coaxially arranged. The connecting seat 4 is internally hollow. The bottom of the lifting seat 5 is provided with a lifting part 11 which passes through the connecting seat 4. The lifting seat 5 is located above the lifting part 11 and abuts against the connecting seat 4. The inside of the connecting seat 4 is a hexagonal through hole 19. The lifting part 11 is a hexagonal column. The hexagonal matching of the lifting part 11 and the through hole 19 makes the lifting seat 5 unable to rotate along the connecting seat 4 but only able to lift, thereby realizing the stable expansion and contraction of the refill 8. The connecting seat 4 is provided with a flange 12 below which is provided with an external thread 13. The lifting seat 5 is hollow and provided with an internal thread 14 at the top. The refill 8 is fixedly inserted on a connecting piece 15 which is detachably and rotatably assembled on the internal thread 14 through the thread. The top of the rotating sleeve 3 is open. The connecting piece 15 passes through the rotating sleeve 3. After the connecting piece 15 is disassembled, the refill 8 can be taken out.

[0031] Based on the same utility model concept, the embodiment of the present application also provides a retractable pen comprising the retractable mechanism of any one of the preceding embodiments. The retractable pen comprises a pen body 1 and a pen cap 2. The pen cap 2 is rotatable relative to the pen body 1. Specifically, the pen cap 2 is sleeved on the rotating sleeve 3. The pen body 1 is rotatably assembled on the external thread 13 through the thread and abuts against the flange 12 at the top. The bottom of the pen body 1 is threadedly connected with a pen tip 16. The pen tip 16 is provided with an opening. The bottom of the refill 8 can pass through the pen tip 16. The bottom of the pen cap 2 abuts against the flange 12. The outer wall of the rotating sleeve 3 is provided with a plurality of first rotation-stopping ribs 17. The inner wall of the pen cap 2 is provided with a plurality of second rotation-stopping ribs 18. The first rotation-stopping ribs 17 and the second rotation-stopping ribs 18 are matched. Therefore, rotating the pen cap 2 can drive the rotating sleeve 3 to rotate along the connecting seat 4 through the first rotation-stopping ribs 17 and the second rotation-stopping ribs 18. The rotating sleeve 3 drives the lifting seat 5 to lift, thereby realizing the lifting of the refill 8.

[0032] The retractable pen and the retractable mechanism thereof provided by the present application realize the lifting of the lifting seat and the refill when the pen cap rotates through the screw connection between the rotating sleeve and the internal lifting seat. The lifting seat and the connecting seat are matched through the hexagonal lifting part, so that the lifting seat cannot directly lift and rotate, thereby realizing the positioning of the internal refill at any height and preventing the refill from retracting under force when in use, which makes the retractable pen more convenient to use.

[0033] The above only describes the preferred embodiments of the present application. It should be noted that those skilled in the art can make some improvements and refinements without departing from the technical principles of the present application. These improvements and refinements should also be considered within the protection scope of the present application.

Claims

1. A retracting mechanism of a retractable pen, characterized by: The telescopic mechanism comprises a rotating sleeve (3), a connecting seat (4) and a lifting seat (5), the rotating sleeve (3) is circumferentially rotatable sleeved on the connecting seat (4), the inner wall of the rotating sleeve (3) is provided with an inner spiral part (6), the outer wall of the lifting seat (5) is provided with an outer spiral part (7), the lifting seat (5) is vertically slidably installed on the connecting seat (4) and the outer spiral part (7) is matched with the inner spiral part (6), the lifting seat (5) penetrates through the connecting seat (4) and is detachably connected with a refill (8) inside, the rotating sleeve (3) is rotated relative to the connecting seat (4), the rotating sleeve (3) drives the lifting seat (5) to lift through the matching of the inner spiral part (6) and the outer spiral part (7), so as to realize the lifting of the lifting seat (5) and the refill (8).

2. The retracting mechanism of the retractable pen according to claim 1, wherein: The connecting seat (4) is provided with an annular groove (9), the inner wall of the rotating sleeve (3) is provided with an annular protruding rib (10), and the protruding rib (10) is matched in the annular groove (9); the rotating sleeve (3), the connecting seat (4) and the lifting seat (5) are coaxially arranged.

3. The retracting mechanism of the retractable pen according to claim 1, wherein: The connecting seat (4) is internally hollow, the bottom of the lifting seat (5) is provided with a lifting part (11) and the lifting part (11) penetrates through the connecting seat (4), and the lifting seat (5) is located above the lifting part (11) and abuts against the connecting seat (4).

4. The retracting mechanism of the retractable pen according to claim 1, wherein: The connecting seat (4) is provided with a flange (12) and the flange (12) is provided with an external thread (13) below.

5. The retracting mechanism of the retractable pen according to claim 1, wherein: The lifting seat (5) is hollow and provided with an internal thread (14) at the top, the refill (8) is fixedly inserted in a connecting piece (15), and the connecting piece (15) is rotatably assembled on the internal thread (14).

6. The retracting mechanism of the retractable pen according to claim 3, wherein: The inside of the connecting seat (4) is a regular hexagonal through hole (19), and the lifting part (11) is a regular hexagonal column.

7. The retracting mechanism of the retractable pen according to claim 5, wherein: The top of the rotating sleeve (3) is open, and the connecting piece (15) penetrates through the rotating sleeve (3).

8. A retractable pen comprising the retracting mechanism of claim 4, characterized in that: The telescopic pen comprises a pen body (1) and a pen cover (2), and the pen cover (2) is rotatable relative to the pen body (1).

9. The retracting pen of claim 8, wherein: The pen cover (2) is sleeved on the rotating sleeve (3), the pen body (1) is rotatably assembled on the external thread (13) and abuts against the flange (12) at the top, the bottom of the pen body (1) is threadedly connected with a pen head (16), the pen head (16) is provided with an opening, and the bottom of the refill (8) can penetrate through the pen head (16).

10. The retracting pen of claim 8, wherein: The bottom of the pen cover (2) abuts against the flange (12), a plurality of first rotation stopping ribs (17) are arranged on the outer wall of the rotating sleeve (3), a plurality of second rotation stopping ribs (18) are arranged on the inner wall of the pen cover (2), and the first rotation stopping ribs (17) are matched with the second rotation stopping ribs (18).

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