Telescopic pen and telescopic mechanism thereof

Abstract

The invention 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 circumferentially and rotatably sleeve the connecting seat, the inner wall of the rotating sleeve is provided with an inner spiral part, and the outer wall of the lifting seat is provided with an outer spiral part; 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, 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 when the telescopic pen is used.

Description

Technical Field

[0001] The invention relates to the technical field of gel pens, in particular to a telescopic pen and a telescopic mechanism thereof. Background Art

[0002] A gel pen is a writing tool and an indispensable stationery item in life. The patent with application number 201811467631.9 discloses a gel pen, which belongs to the field of stationery, and includes a pen holder and a refill, wherein the refill includes a nib, a nib seat and an ink tube connected in sequence; the pen holder is a hollow tubular shell, and the pen holder includes a conical section and a cylindrical section; and also includes a refill lifting device, wherein the refill lifting device includes a rotating jacket, which is sleeved on the pen holder, the rotating jacket is threadedly connected to the pen holder, and an end cap is provided at the free end of the rotating jacket, and a connecting sleeve is provided on the inner wall of the end cap, and the connecting sleeve is detachably connected to the ink tube; the refill, the pen holder, the rotating jacket and the connecting sleeve are coaxial; and the rotating jacket is provided with an anti-rotation structure. This structure can realize the refill lifting function, but the refill can only be kept at the maximum extended position, and cannot be positioned at any height. During the writing process, the refill will retract. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The problem to be solved by the present invention is to provide a telescopic pen and a telescopic mechanism thereof, so as to overcome the defect in the prior art that the refill of the telescopic pen cannot be adjusted to any height and causes inconvenience in use.

[0005] (II) Technical solution

[0006] In order to solve the technical problem, the present invention provides a telescopic mechanism of a telescopic pen, comprising a rotating sleeve, a connecting seat and a lifting seat, the rotating sleeve can be circumferentially rotatable and sleeved on the connecting seat, the inner wall of the rotating sleeve is provided with an inner spiral portion, the outer wall of the lifting seat is provided with an outer spiral portion, the lifting seat is vertically slidably installed on the connecting seat and the outer spiral portion cooperates with the inner spiral portion, the lifting seat passes through the connecting seat and has a refill detachably connected thereto; the rotating sleeve is rotated to rotate relative to the connecting seat, and the rotating sleeve drives the lifting seat to rise and fall through the cooperation of the inner spiral portion and the outer spiral portion to achieve the lifting and falling of the lifting seat and the refill.

[0007] In some embodiments, an annular groove is provided on the connecting seat, and an annular convex rib is provided on the inner wall of the rotating sleeve. The convex rib fits 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 interior of the connecting seat is hollow, a lifting portion is provided at the bottom of the lifting seat and the lifting portion passes through the connecting seat, the lifting seat is located above the lifting portion and rests on the connecting seat, the interior of the connecting seat is a regular hexagonal through hole, and the lifting portion is a regular hexagonal column, so that the lifting seat cannot rotate relative to the connecting seat and can only perform lifting and lowering movements.

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

[0010] In some embodiments, the lifting seat is hollow and has an internal thread on the top, the pen core is fixedly inserted on the connecting piece, the connecting piece is rotatably assembled on the internal thread, the top of the rotating sleeve is open, and the connecting piece passes through the rotating sleeve.

[0011] In some embodiments, a pen head is threadedly connected to the bottom of the pen body, an opening is provided on the pen head, the bottom of the pen core can pass through the pen head, and the bottom of the pen cap rests on the flange.

[0012] In some embodiments, a plurality of first anti-rotation ribs are provided on the outer wall of the rotating sleeve, and a plurality of second anti-rotation ribs are provided on the inner wall of the pen cap. The first anti-rotation ribs cooperate with the second anti-rotation ribs so that the rotating sleeve can be driven to rotate synchronously when the pen cap rotates.

[0013] The present invention also provides a telescopic pen including the above-mentioned telescopic mechanism, the telescopic pen including a pen body and a pen cap, the pen cap can rotate relative to the pen body; the pen cap is sleeved on the rotating sleeve, the pen body is rotatably assembled on the external thread and the top abuts on 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 pen core can pass through the pen head, the bottom of the pen cap abuts on the flange, a plurality of first anti-rotation ribs are provided on the outer wall of the rotating sleeve, a plurality of second anti-rotation ribs are provided on the inner wall of the pen cap, the first anti-rotation ribs cooperate with the second anti-rotation ribs.

[0014] (III) Beneficial effects

[0015] The present invention provides a telescopic pen and a telescopic mechanism thereof. The pen cap can drive the lifting seat and the pen core to move up and down when the pen cap rotates by spirally connecting the rotating sleeve with the internal lifting seat. The lifting seat cooperates with the connecting seat through the lifting part, so that the lifting seat cannot directly move up and down or rotate. Therefore, the internal pen core can be positioned at any height and will not retract under force when in use, making the telescopic pen more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A three-dimensional diagram of a telescopic pen and a telescopic mechanism thereof according to the present invention;

[0018] Figure 2 A telescopic pen and a telescopic mechanism thereof of the present invention are shown in a three-dimensional diagram;

[0019] Figure 3 A cross-sectional view of a telescopic mechanism of a telescopic pen and a telescopic mechanism thereof according to the present invention;

[0020] Figure 4 A three-dimensional diagram of a telescopic pen and a lifting seat of a telescopic mechanism thereof according to the present invention;

[0021] Figure 5 A three-dimensional diagram of a connecting seat of a telescopic pen and a telescopic mechanism thereof according to the present invention;

[0022] Figure 6 The present invention is a three-dimensional diagram of a retractable pen and a rotating sleeve of its retractable mechanism.

[0023] The names of the components corresponding to the various figure marks in the figure are: 1. Pen body; 2. Pen cap; 3. Rotating sleeve; 4. Connecting seat; 5. Lifting seat; 6. Inner spiral portion; 7. Outer spiral portion; 8. Pen core; 9. Annular groove; 10. Convex rib; 11. Lifting portion; 12. Flange; 13. External thread; 14. Internal thread; 15. Connector; 16. Pen tip; 17. First anti-rotation rib; 18. Second anti-rotation rib; 19. Through hole. DETAILED DESCRIPTION

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

[0025] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. 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 through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0026] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0027] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0028] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0029] See also Figure 1 to Figure 6 The present invention provides a telescopic mechanism of a telescopic pen, comprising a rotating sleeve 3, a connecting seat 4 and a lifting seat 5. The rotating sleeve 3 can be circumferentially rotatably sleeved on the connecting seat 4. The inner wall of the rotating sleeve 3 is provided with an inner spiral portion 6, and the outer wall of the lifting seat 5 is provided with an outer spiral portion 7. The lifting seat 5 is vertically slidably installed on the connecting seat 4 and the outer spiral portion 7 cooperates with the inner spiral portion 6. The lifting seat 5 passes through the connecting seat 4 and a pen core 8 is detachably connected inside. The rotating sleeve 3 is rotated to rotate relative to the connecting seat 4. The rotating sleeve 3 drives the lifting seat 5 to rise and fall through the cooperation of the inner spiral portion 6 and the outer spiral portion 7 to realize the lifting and falling of the lifting seat 5 and the pen core 8.

[0030] In some embodiments, Figure 2 to Figure 5As shown, the connecting seat 4 is provided with an annular groove 9, the inner wall of the rotating sleeve 3 is provided with an annular convex rib 10, and the convex rib 10 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 interior of the connecting seat 4 is hollow, and the bottom of the lifting seat 5 is provided with a lifting portion 11 and the lifting portion 11 passes through the connecting seat 4, and the lifting seat 5 is located above the lifting portion 11 and abuts against the connecting seat 4, the interior of the connecting seat 4 is a regular hexagonal through hole 19, and the lifting portion 11 is a regular hexagonal column. The hexagonal cooperation between the lifting portion 11 and the through hole 19 makes it impossible for the lifting seat 5 to rotate along the connecting seat 4 but can only perform lifting movement, thereby realizing stable extension and retraction of the pen core 8; a flange 12 is provided on the connecting seat 4 and an external thread 13 is provided below the flange 12, while the lifting seat 5 is hollow and an internal thread 14 is provided on the top, and the pen core 8 is fixedly inserted on the connecting piece 15, and the connecting piece 15 is detachably and rotatably assembled on the internal thread 14 through a thread, and the top of the rotating sleeve 3 is open, and the connecting piece 15 passes through the rotating sleeve 3, and the pen core 8 can be taken out after the connecting piece 15 is removed.

[0031] Based on the same inventive concept, an embodiment of the present specification also provides a telescopic pen, comprising the telescopic mechanism described in any of the aforementioned embodiments, the telescopic pen comprising a pen body 1 and a pen cap 2, and the pen cap 2 can rotate relative to the pen body 1; specifically, the pen cap 2 is sleeved on the rotating sleeve 3, the pen body 1 is assembled on the external thread 13 through a threaded rotation and the top abuts against the flange 12, the bottom of the pen body 1 is threadedly connected with a pen head 16, the pen head 16 is provided with an opening, the bottom of the pen core 8 can pass through the pen head 16, the bottom of the pen cap 2 abuts against the flange 12, a plurality of first anti-rotation ribs 17 are provided on the outer wall of the rotating sleeve 3, and a plurality of second anti-rotation ribs 18 are provided on the inner wall of the pen cap 2, the first anti-rotation ribs 17 cooperate with the second anti-rotation ribs 18, so that rotating the pen cap 2 can drive the rotating sleeve 3 to rotate along the connecting seat 4 through the first anti-rotation ribs 17 and the second anti-rotation ribs 18, and the rotating sleeve 3 drives the lifting seat 5 to rise and fall to realize the lifting and lowering of the pen core 8.

[0032] The present invention provides a telescopic pen and a telescopic mechanism thereof, wherein a rotating sleeve is spirally connected to an internal lifting seat so that the pen cap can drive the lifting seat and the pen core to move up and down when the pen cap rotates, and the lifting seat and the connecting seat cooperate with each other through a hexagonal lifting portion, so that the lifting seat cannot directly move up and down or rotate, thereby realizing that the internal pen core can be positioned at any height and will not be forced to retract when in use, making the telescopic pen more convenient to use.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A telescopic mechanism of a telescopic pen, characterized in that: The telescopic mechanism comprises a rotating sleeve (3), a connecting seat (4) and a lifting seat (5); the rotating sleeve (3) can be circumferentially rotatably sleeved on the connecting seat (4); the inner wall of the rotating sleeve (3) is provided with an inner spiral portion (6); the outer wall of the lifting seat (5) is provided with an outer spiral portion (7); the lifting seat (5) is vertically slidably mounted on the connecting seat (4) and the outer spiral portion (7) cooperates with the inner spiral portion (6); the lifting seat (5) passes through the connecting seat (4) and has a refill (8) detachably connected thereto; the rotating sleeve (3) is rotated to rotate relative to the connecting seat (4); the rotating sleeve (3) drives the lifting seat (5) to rise and fall through the cooperation of the inner spiral portion (6) and the outer spiral portion (7) to achieve the lifting and falling of the lifting seat (5) and the refill (8).

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

3. The telescopic mechanism of the telescopic pen according to claim 1, characterized in that: The interior of the connecting seat (4) is hollow, a lifting portion (11) is provided at the bottom of the lifting seat (5), and the lifting portion (11) passes through the connecting seat (4), and the lifting seat (5) is located above the lifting portion (11) and abuts against the connecting seat (4).

4. The telescopic mechanism of the telescopic pen according to claim 1, characterized in that: The connection seat (4) is provided with a flange (12) and an external thread (13) is provided below the flange (12).

5. The telescopic mechanism of the telescopic pen according to claim 1, characterized in that: The lifting seat (5) is hollow and has an internal thread (14) on the top. The pen core (8) is fixedly inserted on the connecting piece (15), and the connecting piece (15) is rotatably assembled on the internal thread (14).

6. The telescopic mechanism of the telescopic pen according to claim 3, characterized in that: The interior of the connecting seat (4) is a regular hexagonal through hole (19), and the lifting portion (11) is a regular hexagonal column.

7. The telescopic mechanism of the telescopic pen according to claim 5, characterized in that: The top of the rotating sleeve (3) is open, and the connecting piece (15) passes through the rotating sleeve (3).

8. A telescopic pen, comprising the telescopic mechanism according to any one of claims 1 to 7, characterized in that: The telescopic pen comprises a pen body (1) and a pen cover (2), and the pen cover (2) can rotate relative to the pen body (1).

9. The retractable pen according to claim 8, characterized in that: The pen cap (2) is sleeved on the rotating sleeve (3); the pen body (1) is rotatably assembled on the external thread (13) and the top thereof abuts against the flange (12); the bottom of the pen body (1) is threadedly connected with a pen head (16); an opening is provided on the pen head (16), and the bottom of the pen core (8) can pass through the pen head (16).

10. The retractable pen according to claim 8, characterized in that: The bottom of the pen cap (2) abuts against the flange (12), a plurality of first anti-rotation ribs (17) are provided on the outer wall of the rotating sleeve (3), a plurality of second anti-rotation ribs (18) are provided on the inner wall of the pen cap (2), and the first anti-rotation ribs (17) cooperate with the second anti-rotation ribs (18).

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