Writing pen with rotatable inner tube

Abstract

According to the writing pen with the rotatable inner tube, the front end of an outer pen holder is detachably connected with a pen point cap, the inner tube is contained in an inner cavity of the outer pen holder, a pen core is contained in the inner tube, the pen point end of the pen core is close to the pen point cap, and the non-pen-point end of the pen core abuts against a rotating module so that the pen core can be pushed when the rotating module rotates, and the pen point can be exposed out of the pen point cap; the rotating module comprises a rotating pressing head, a first-stage rotating transmission structural member and a second-stage rotating transmission structural member, the rotating pressing head is exposed out of the pen cap so as to receive applied rotating operation, one end of the first-stage rotating transmission structural member is connected with the rotating pressing head, and the other end of the first-stage rotating transmission structural member is connected with one end of the second-stage rotating transmission structural member; when rotating operation is applied to the rotating pressing head, the rotating pressing head is driven to rotate and drives the second-stage rotating transmission structural part to rotate, one end of the second-stage rotating transmission structural part abuts against the inner tube, and therefore when the second-stage rotating transmission structural part rotates, the inner tube is pushed, and the pen point is driven to be exposed out of the pen point cap.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of teaching aids, in particular to a writing pen with a rotatable inner tube. BACKGROUND

[0002] In the field of existing writing tools, writing pens are essential tools for daily learning, office work and creation, and their designs are diverse and have different functions. Traditional writing pens mostly use press-type or cap-pulling type designs to realize the extension and retraction of the pen core. Although these designs are simple and easy to use, they are not flexible or efficient enough in some specific use scenarios, such as the need to frequently switch between writing and non-writing states, or higher requirements for the portability and operational convenience of the writing pen.

[0003] In particular, for users who pursue writing experience and creative expression, a writing pen that can control the extension and retraction of the pen core through rotation operation will provide a more novel and interesting way of writing. However, the existing rotating writing pens on the market often have problems such as complex structure, inconvenient operation or low rotation transmission efficiency. For example, some rotating pens need to be rotated multiple times to complete the complete extension of the pen core, which not only affects the use efficiency, but also reduces the user experience due to the jamming feeling during rotation. In addition, the cooperation between the inner tube and the transmission structure of some rotating pens is not tight enough, which leads to loose or unstable phenomenon during rotation, thereby affecting the stable extension and positioning of the pen core. SUMMARY

[0004] The purpose of the present application is to provide a writing pen with a rotatable inner tube to overcome or alleviate the above technical problems in the prior art.

[0005] In order to achieve the above purpose, the present application provides the following technical solutions:

[0006] A writing pen with a rotatable inner tube, comprising: an outer pen barrel, a pen cap, a pen tip cap, an inner tube, a pen core, a rotation module;

[0007] The front end of the outer pen barrel is detachably connected with the pen tip cap, the inner tube is contained in the inner cavity of the outer pen barrel, the inner tube contains a pen core, the pen tip end of the pen core is close to the pen tip cap, and the non-pen tip end of the pen core is in abutment with the rotation module to expose the pen tip from the pen tip cap when the rotation module is pushed.

[0008] The rotating module comprises a rotating press head, a first-stage rotating transmission structural member, and a second-stage rotating transmission structural member. The rotating press head is exposed outside the cap to receive a rotating operation. One end of the first-stage rotating transmission structural member is connected with the rotating press head, and the other end is connected with one end of the second-stage rotating transmission structural member. When the rotating operation is applied to the rotating press head, the rotating press head is driven to rotate, and the second-stage rotating transmission structural member is driven to rotate. One end of the second-stage rotating transmission structural member is in abutment with the inner tube to push the inner tube and the pen head when the second-stage rotating transmission structural member rotates, and the pen head is exposed outside the cap.

[0009] Optionally, the end of the first-stage rotating transmission structural member connected with the rotating press head is provided with external threads. The rotating press head has an internal cavity provided with internal threads. The internal threads are engaged with the external threads to rigidly connect one end of the first-stage rotating transmission structural member with the rotating press head.

[0010] Optionally, the other end of the first-stage rotating transmission structural member connected with the second-stage rotating transmission structural member is provided with engaging convex teeth. One end of the second-stage rotating transmission structural member connected with the first-stage rotating transmission structural member is provided with engaging concave teeth. The engaging concave teeth are engaged with the engaging convex teeth to connect the other end of the first-stage rotating transmission structural member with one end of the second-stage rotating transmission structural member.

[0011] Optionally, the first-stage rotating transmission structural member has an internal cavity. The second-stage rotating transmission structural member is inserted into the internal cavity of the first-stage rotating transmission structural member to engage the engaging concave teeth with the engaging convex teeth.

[0012] Optionally, the end of the second-stage rotating transmission structural member inserted into the internal cavity of the first-stage rotating transmission structural member is provided with a fixing fork. The fixing fork is forked and fixed with the internal cavity of the first-stage rotating transmission structural member to rigidly position the second-stage rotating transmission structural member on the first-stage rotating transmission structural member.

[0013] Optionally, the second-stage rotating transmission structural member comprises a mother rotating transmission structural member and a son rotating transmission structural member. The son rotating transmission structural member is nested on the mother rotating transmission structural member and fixedly integrated with the mother rotating transmission structural member.

[0014] Optionally, one end of the son rotating transmission structural member nested on the mother rotating transmission structural member is provided with external threads. The mother rotating transmission structural member is provided with internal threads at the end nested with the son rotating transmission structural member. The internal threads are in a thread engagement relationship with the external threads.

[0015] Optionally, the sub-rotary transmission structure extends into the inner tube and abuts against the refill, and a limiting table is arranged at one end of the inner tube, so that when the inner tube is pushed to generate a set stroke, the pen tip is exposed from the pen tip cap.

[0016] Optionally, the front end of the refill is sleeved on a reset spring, one end of the reset spring abuts against the front end of the pen tip cap, and the other end of the reset spring abuts against the sub-rotary transmission structure, so that when the sub-rotary transmission structure is pushed, the reset spring is compressed and deformed.

[0017] The utility model provides a rotatable writing pen of inner tube, it is designed through optimization rotation module, realize more fluent, efficient rotation operation experience, guarantee the stable transition of inner tube and refill in rotation process simultaneously, to meet the higher level demand of user to writing pen. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings accompanying the specification provide further understanding of the present application, the illustrative embodiments thereof, and constitute a part of the specification, which serve to explain the present application, and do not constitute an improper limitation of the present application. Among them:

[0019] Figure 1 It is the whole structure schematic diagram of rotatable writing pen of inner tube of the embodiment of the present application.

[0020] Figure 2 It is the internal structure schematic diagram of rotatable writing pen of inner tube of the embodiment of the present application.

[0021] Figure 3 It is a schematic diagram of the mother rotary transmission structure of the embodiment of the present application.

[0022] Figure 4 It is another schematic diagram of the mother rotary transmission structure of the embodiment of the present application.

[0023] Figure 5 It is still another schematic diagram of the mother rotary transmission structure of the embodiment of the present application.

[0024] Figure 6 It is still another schematic diagram of the mother rotary transmission structure of the embodiment of the present application.

[0025] Figure 7 It is a schematic diagram of the first level rotary transmission structure of the embodiment of the present application.

[0026] Figure 8 It is another schematic diagram of the first level rotary transmission structure of the embodiment of the present application.

[0027] Figure 9 It is still another schematic diagram of the first level rotary transmission structure of the embodiment of the present application.

[0028] Figure 10 A first-level rotating transmission structure of an embodiment of the present application.

[0029] Figure 11 A second rotating transmission structure of an embodiment of the present application.

[0030] Figure 12 Another second rotating transmission structure of an embodiment of the present application.

[0031] Figure 13 Still another second rotating transmission structure of an embodiment of the present application. DETAILED DESCRIPTION

[0032] The present application will be described in detail below with reference to the accompanying drawings and embodiments. Each example is provided by way of explanation of the present application rather than limitation of the present application. In fact, those skilled in the art will appreciate that modifications and variations can be made in the present application without departing from the scope or spirit of the present application. For example, features shown or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Therefore, it is intended that the present application encompass such modifications and variations as fall within the scope of the appended claims and their equivalents.

[0033] In the description of the present application, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and do not require the present application to be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. The terms "connected", "connected", "provided" used in the present application should be interpreted broadly, for example, can be fixedly connected, can be connected; can be directly connected, or indirectly connected through intermediate components; the specific meaning of the above terms can be understood by those skilled in the art according to the specific circumstances.

[0034] Referring to the above Figures 1-12 As shown, the inner tube rotatable writing pen provided by the embodiment of the present application comprises an outer pen barrel 1, a pen cap 2, a pen tip cap 3, an inner tube 4, a refill (not shown in the figure), and a rotating module 5.

[0035] The front end of the outer pen barrel 1 is detachably connected with the pen tip cap 3, the inner tube 4 is contained in the inner cavity of the outer pen barrel 1, the inner tube 4 contains a refill, the pen tip end of the refill is close to the pen tip cap 3, and the non-pen tip end of the refill is abutted with the rotating module 5, so that the pen tip is exposed from the pen tip cap 3 when the rotating module 5 is pushed.

[0036] The rotating module 5 comprises a rotating press head 51, a first-stage rotating transmission structural member 52, and a second-stage rotating transmission structural member 53. The rotating press head 51 is exposed outside the pen cap 2 to receive a rotating operation. One end of the first-stage rotating transmission structural member 52 is connected with the rotating press head 51, and the other end is connected with one end of the second-stage rotating transmission structural member 53. When the rotating operation is applied to the rotating press head 51, the rotating press head 51 is driven to rotate and drives the second-stage rotating transmission structural member 53 to rotate. One end of the second-stage rotating transmission structural member 53 is in abutment with the inner tube 4 to push the inner tube 4 and the pen head when the second-stage rotating transmission structural member 53 rotates, and the pen head is exposed from the pen head cap 3.

[0037] The utility model provides a kind of inner tube rotatable writing pen, to optimize the design of rotating module 5, realize more smooth, efficient rotating operation experience. Specifically, the rotating module adopts the design of hierarchical transmission, i.e. including rotating press head, first-stage rotating transmission structural member and second-stage rotating transmission structural member. This design not only makes the transmission of rotating force more uniform and stable, but also through the step-by-step amplification effect of two-stage transmission structure, can effectively improve the efficiency of rotating operation, so that user only needs to rotate rotating press head easily, can quickly realize the extension and retraction of refill, greatly improve the convenience of use.

[0038] Meanwhile, the utility model also ensures the stable displacement of inner tube 4 and refill in rotating process. This is realized by the design that one end of second-stage rotating transmission structural member is in abutment with inner tube. When second-stage rotating transmission structural member rotates under the drive of rotating press head, it will directly push inner tube to move along the inner cavity of outer pen barrel, to drive the pen head of refill to be exposed from pen head cap. Since the abutment relationship between inner tube and second-stage rotating transmission structural member is close and stable, it can ensure that there is no loosening or instability phenomenon in rotating process, to guarantee the stable extension and positioning of refill.

[0039] Optionally, the end of the first-stage rotating transmission structural member 52 connected with the rotating press head 51 is provided with external threads, and the rotating press head 51 has an inner cavity provided with internal threads, and the internal threads engage with the external threads to rigidly connect one end of the first-stage rotating transmission structural member 52 with the rotating press head 51.

[0040] Optionally, the other end of the first-stage rotary transmission structure 52 connected with the second-stage rotary transmission structure 53 is provided with a protruding tooth 521, and one end of the second-stage rotary transmission structure 53 connected with the first-stage rotary transmission structure 52 is provided with a recessed tooth 531, the recessed tooth 531 is engaged with the protruding tooth 521, so that the other end of the first-stage rotary transmission structure 52 is connected with one end of the second-stage rotary transmission structure 53.

[0041] Optionally, the first-stage rotary transmission structure 52 has an inner cavity, and the second-stage rotary transmission structure 53 is inserted into the inner cavity of the first-stage rotary transmission structure 52, so that the recessed tooth 531 is engaged with the protruding tooth 521.

[0042] Optionally, the second-stage rotary transmission structure 53 inserted into the inner cavity of the first-stage rotary transmission structure 52 is provided with a fixing fork 532 at the end of the inner cavity, the fixing fork 532 is forked and fixed with the inner cavity of the first-stage rotary transmission structure 52, so as to rigidly limit the second-stage rotary transmission structure 53 on the first-stage rotary transmission structure 52.

[0043] Optionally, the second-stage rotary transmission structure 53 includes a female rotary transmission structure 533 and a male rotary transmission structure 534, the male rotary transmission structure 534 is nested on the female rotary transmission structure 533 and is fixed as a whole with the female rotary transmission structure 533.

[0044] Optionally, one end of the male rotary transmission structure 534 nested on the female rotary transmission structure 533 is provided with an external thread, and one end of the female rotary transmission structure 533 nested with the male rotary transmission structure 534 is provided with an internal thread, the internal thread and the external thread form a threaded engagement relationship, so as to nest the male rotary transmission structure 534 on the female rotary transmission structure 533 and fix as a whole with the female rotary transmission structure 533.

[0045] Optionally, the male rotary transmission structure 534 deeply goes into the inner tube 4 and abuts against the refill, and one end of the male rotary transmission structure 534 deeply going into the inner tube 4 is provided with a limiting table, so that when the inner tube 4 is pushed to generate a set stroke, the pen tip is exposed from the pen tip cap 3.

[0046] Optionally, the front end of the refill is sleeved on a reset spring not shown in the figure, one end of the reset spring abuts against the front end of the pen tip cap 3, and the other end of the reset spring abuts against the male rotary transmission structure 534, so that when the male rotary transmission structure 534 is pushed, the reset spring is extruded to be deformed.

[0047] The above descriptions are only the preferred embodiment of the application, not intended to limit the application. The application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A writing pen with a rotatable inner tube, characterized in that, Include: The outer pen holder (1), pen cap (2), pen head cap (3), inner tube (4), refill, rotating module (5); The front end of the outer pen holder (1) is detachably connected with the pen head cap (3), the inner tube (4) is contained in the inner cavity of the outer pen holder (1), the inner tube (4) contains a refill, the pen head end of the refill is close to the pen head cap (3), the non-pen head end of the refill is abutted with the rotating module (5), so that the pen head is exposed from the pen head cap (3) when the rotating module (5) is pushed; The rotating module (5) includes a rotating button (51), a first-stage rotating transmission structural member (52) and a second-stage rotating transmission structural member (53), the rotating button (51) is exposed outside the pen cap (2) to accept the applied rotating operation, one end of the first-stage rotating transmission structural member (52) is connected with the rotating button (51), the other end is connected with one end of the second-stage rotating transmission structural member (53), the first-stage rotating transmission structural member (52) is driven to rotate by the rotating button (51) when the rotating operation is applied to the rotating button (51), and the second-stage rotating transmission structural member (53) is rotated, one end of the second-stage rotating transmission structural member (53) is abutted with the inner tube (4) to push the inner tube (4) and drive the pen head to expose from the pen head cap (3) when the second-stage rotating transmission structural member (53) is rotated.

2. The writing instrument according to claim 1, wherein The end of the first-stage rotating transmission structural member (52) connected with the rotating button (51) is provided with external threads, the rotating button (51) has an inner cavity provided with internal threads, the internal threads are engaged with the external threads to rigidly connect one end of the first-stage rotating transmission structural member (52) with the rotating button (51).

3. The writing instrument according to claim 1, wherein The other end of the first-stage rotating transmission structural member (52) connected with the second-stage rotating transmission structural member (53) is provided with engaging convex teeth (521), one end of the second-stage rotating transmission structural member (53) connected with the first-stage rotating transmission structural member (52) is provided with engaging concave teeth (531), the engaging concave teeth (531) are engaged with the engaging convex teeth (521) to connect the other end of the first-stage rotating transmission structural member (52) with one end of the second-stage rotating transmission structural member (53).

4. The writing instrument according to claim 3, wherein The first-stage rotating transmission structural member (52) has an inner cavity, the second-stage rotating transmission structural member (53) is inserted into the inner cavity of the first-stage rotating transmission structural member (52) to engage the engaging concave teeth (531) with the engaging convex teeth (521).

5. The writing instrument according to claim 4, wherein The end of the second-stage rotating transmission structural member (53) inserted into the inner cavity of the first-stage rotating transmission structural member (52) is provided with a fixing fork (532), the fixing fork (532) is forked and fixed with the inner cavity of the first-stage rotating transmission structural member (52) to rigidly limit the second-stage rotating transmission structural member (53) on the first-stage rotating transmission structural member (52).

6. The writing instrument according to claim 3, wherein The second-stage rotary transmission structure (53) comprises a female rotary transmission structure (533) and a male rotary transmission structure (534), and the male rotary transmission structure (534) is nested on the female rotary transmission structure (533) and fixedly integrated with the female rotary transmission structure (533).

7. The writing instrument according to claim 6, wherein The end of the male rotary transmission structure (534) nested on the female rotary transmission structure (533) is provided with external threads, and the end of the female rotary transmission structure (533) nested with the male rotary transmission structure (534) is provided with internal threads, and the internal threads and the external threads are in a threaded engagement relationship, so as to nest the male rotary transmission structure (534) on the female rotary transmission structure (533) and fixedly integrate the male rotary transmission structure (534) with the female rotary transmission structure (533).

8. The writing instrument according to claim 7, wherein The male rotary transmission structure (534) is deeply inserted into the inner tube (4) and abuts against the refill, and the end of the male rotary transmission structure (534) deeply inserted into the inner tube (4) is provided with a limiting platform, so that when the inner tube (4) is pushed to a set stroke, the pen head is exposed from the pen head cap (3).

9. The writing instrument according to claim 7, wherein The front end of the refill is sleeved on a reset spring, one end of the reset spring abuts against the front end of the pen head cap (3), and the other end of the reset spring abuts against the male rotary transmission structure (534), so that when the male rotary transmission structure (534) is pushed, the reset spring is compressed and deformed.

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