Rotary telescopic pen
By using a sliding design between the inner and outer shells, combined with a clamping drive and a reset component, the pen refill can move up and down, solving the problem of insufficient ink storage in traditional rotary telescopic pens, increasing the refill length, and improving ink capacity.
Patent Information
- Application Number
- CN202511719377.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2025-12-19
AI Technical Summary
Traditional rotary retractable pens have a short retractable lead length due to the rotary retractable structure at the top of the lead, which affects the ink capacity.
It adopts an inner shell and an outer shell design. The inner shell can be slidably fitted inside the outer shell. The pen refill moves up and down through the driving part and driving mating part of the upper shell and the inner shell. The clamping and releasing state of the claw is switched. The length of the pen refill is basically the same as the overall length of the rotating telescopic pen.
It increases the ink capacity of the pen refill, avoiding the length shortage caused by structural limitations in traditional designs, and increases ink capacity.
Smart Images
Figure CN121157535A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a rotating telescopic pen. Background Technology
[0002] As a basic writing tool, pens can be categorized based on their structure into fixed pens, retractable pens, and push-button retractable pens.
[0003] Traditional retractable pens typically have a rotating and retractable mechanism at the top of the refill, allowing it to rotate and extend. Because of this mechanism, the refill is often shorter than the overall length of the pen, affecting its ink capacity. Summary of the Invention
[0004] Therefore, it is necessary to provide a rotating telescopic pen that can solve the above problems.
[0005] A rotating telescopic pen, comprising: The outer casing includes a lower casing and an upper casing rotatably disposed on the lower casing; An inner shell is slidably fitted inside the outer shell, and the upper end of the inner shell is provided with a clamping claw; A clamping drive component is disposed between the gripper and the housing; A first reset member is disposed between the gripper and the housing, the first reset member being connected to the clamping drive member and the upper housing respectively; and A pen refill that is slidably fitted inside the inner shell, the lower end of the pen refill having a pen tip; The clamping drive moves relative to the gripper, thereby putting the gripper in a clamping state or a releasing state. When the gripper is in the clamping state, the gripper clamps and fixes the pen refill. When the gripper is in the releasing state, the pen refill can slide up and down relative to the gripper. The upper shell and the inner shell are respectively provided with a driving part and a driving engagement part that match each other. The upper shell rotates relative to the lower shell, thereby driving the inner shell to move up and down relative to the outer shell. When the inner shell moves downward relative to the outer shell, the clamping driving member moves upward relative to the jaw, thereby making the jaw in a clamping state. The jaw clamps and fixes the pen refill. When the inner shell continues to move downward relative to the outer shell, it drives the pen refill to move downward, thereby making the pen tip exposed.
[0006] In one embodiment, the lower end of the lower shell is provided with a pen tip hole, through which the pen tip protrudes.
[0007] In one embodiment, there are at least two grippers, and the at least two grippers extend obliquely upward.
[0008] In one embodiment, the clamping drive is a sleeve fitted over the gripper.
[0009] In one embodiment, the first reset member is a spring sleeved outside the gripper, and the clamping drive member is located above the first reset member.
[0010] In one embodiment, the driving part and the driving mating part are a slider and a slide rail that cooperate with each other, and the slide rail extends obliquely upward.
[0011] In one embodiment, the slide rail includes a first positioning part, an inclined section, and a second positioning part connected in sequence; When the slider slides to the first positioning part, the gripper clamps and fixes the pen core, and the pen tip is exposed. When the slider slides to the second positioning part, the gripper is in a released state and the pen tip retracts.
[0012] In one embodiment, the inclined segment includes a first inclined segment, a third positioning part, and a second inclined segment connected in sequence, wherein the first positioning part, the first inclined segment, the third positioning part, the second inclined segment, and the second positioning part are connected in sequence; When the slider slides to the third positioning part, the gripper clamps and fixes the pen core, and the pen tip retracts.
[0013] In one embodiment, the upper end of the upper shell is provided with a refill hole, and the upper end of the pen refill is used to pass through the refill hole and protrude outside.
[0014] In one embodiment, the rotating telescopic pen further includes a second reset member, which is connected to the pen refill and the outer shell respectively. The second reset member is used to drive the upper end of the pen refill to pass through the refill hole and protrude outside.
[0015] When in use, the rotating telescopic pen of the present invention is provided with a driving part and a driving engagement part that match each other on the upper shell and the inner shell, so that the inner shell moves up and down relative to the outer shell, thereby causing the pen tip to be exposed or retracted.
[0016] Compared to traditional retractable pens, the retractable pen of this invention does not have a retractable structure at the upper end of the pen core. The upper shell, the inner shell, the driving part, and the driving mating part are all fitted outside the pen core, so that the length of the pen core can be basically the same as the overall length of the retractable pen, thereby increasing the ink storage capacity of the pen core. Attached Figure Description
[0017] Figure 1This is a three-dimensional structural diagram of a rotating telescopic pen in one direction when it is in a certain state, as an embodiment of the invention.
[0018] Figure 2 For example Figure 1 The diagram shows a partial exploded view of the rotating telescopic pen.
[0019] Figure 3 For example Figure 1 The diagram shows a further exploded view of the rotating telescopic pen.
[0020] Figure 4 For example Figure 3 The diagram shows a three-dimensional structure of the inner shell of the rotating telescopic pen from another direction.
[0021] Figure 5 For example Figure 4 The diagram shows a three-dimensional structure of the upper shell of the rotating telescopic pen from another direction.
[0022] Figure 6 For example Figure 1 The diagram shows a three-dimensional structure of the rotating telescopic pen in another state, in one direction.
[0023] Figure 7 For example Figure 6 The diagram shows a partial exploded view of the rotating telescopic pen.
[0024] Figure 8 For example Figure 6 The diagram shows a further exploded view of the rotating telescopic pen. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described below with reference to the accompanying drawings.
[0026] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The present invention discloses a rotating telescopic pen according to one embodiment, comprising: a shell 10, an inner shell 20, a clamping drive member 30, a first reset member 40, and a pen core 50.
[0027] The outer casing 10 includes a lower casing 12 and an upper casing 14 rotatably disposed on the lower casing 12.
[0028] The inner shell 20 is slidably fitted inside the outer shell 10, and the upper end of the inner shell 20 is provided with a gripper 22.
[0029] The gripper 22 can be integrally formed with the inner shell 20, or it can be a separate structure set at the upper end of the inner shell 20.
[0030] The clamping drive 30 is disposed between the gripper 22 and the housing 10.
[0031] The first reset component 40 is disposed between the gripper 22 and the outer shell 10, and the first reset component 40 is connected to the clamping drive component 30 and the upper shell 14 respectively.
[0032] The pen refill 50 is slidably fitted inside the inner shell 20, and the lower end of the pen refill 50 is provided with a pen tip 52.
[0033] The clamping drive 30 moves relative to the gripper 22, thereby causing the gripper 22 to be in a clamped state or a released state. When the gripper 22 is in the clamped state, the gripper 22 clamps and fixes the pen refill 50. When the gripper 22 is in the released state, the pen refill 50 can slide up and down relative to the gripper 22.
[0034] The upper shell 14 and the inner shell 20 are respectively provided with a driving part 142 and a driving mating part 24 that match each other. The upper shell 14 rotates relative to the lower shell 12, thereby driving the inner shell 20 to move up and down relative to the outer shell 10. When the inner shell 20 moves downward relative to the outer shell 10, the clamping driving member 30 moves upward relative to the gripper 22, thereby putting the gripper 22 in a clamping state. The gripper 22 clamps and fixes the pen refill 50. When the inner shell 20 continues to move downward relative to the outer shell 10, it drives the pen refill 50 to move downward, thereby making the pen tip 52 exposed.
[0035] When in use, the rotating telescopic pen of the present invention is provided with a driving part 142 and a driving engagement part 24 that are matched with each other on the upper shell 14 and the inner shell 20, so that the inner shell 20 moves up and down relative to the outer shell 10, thereby causing the pen tip 52 to be exposed or retracted.
[0036] Compared with traditional retractable pens, the retractable pen of this invention does not have a retractable structure at the top of the pen core 50. The upper shell 14, inner shell 20, driving part 142 and driving engagement part 24 are all sleeved on the pen core 50, so that the length of the pen core can be basically the same as the overall length of the retractable pen, thereby increasing the ink storage capacity of the pen core 50.
[0037] Specifically, when the inner shell 20 moves upward relative to the outer shell 10, the clamping drive 30 moves downward relative to the gripper 22, which in turn drives the pen refill 50 to move upward, thereby causing the pen tip 52 to retract. When the inner shell 20 continues to move upward relative to the outer shell 10, the clamping drive 30 moves further downward relative to the gripper 22, thereby causing the gripper 22 to change from a clamped state to a released state. At this time, the pen refill 50 can slide up and down relative to the inner shell 20.
[0038] Preferably, in conjunction with the accompanying drawings, in this embodiment, the lower end of the lower shell 12 is provided with a pen tip hole 101, and the pen tip 52 is used to pass through the pen tip hole 101 and then protrude outside.
[0039] Preferably, referring to the accompanying drawings, in this embodiment, there are at least two grippers 22, and at least two grippers 22 extend obliquely upward.
[0040] More preferably, in conjunction with the accompanying drawings, in this embodiment, the clamping drive member 30 is a sleeve fitted over the gripper 22, thereby allowing it to be more stably positioned between the gripper 22 and the outer casing 10.
[0041] More preferably, in conjunction with the accompanying drawings, in this embodiment, the first reset member 40 is a spring sleeved outside the gripper 22, and the clamping drive member 30 is located above the first reset member 40.
[0042] Specifically, the first reset member 40 is used to drive the clamping drive member 30 to move until the gripper 22 is in the released state.
[0043] Referring to the accompanying drawings, specifically in this embodiment, the inner side of the upper shell 14 is provided with a protrusion 144, and the two ends of the first reset member 40 elastically abut against the clamping drive member 30 and the protrusion 144, respectively.
[0044] Referring to the accompanying drawings, in this embodiment, the driving part 142 and the driving mating part 24 are a slider and a slide rail that cooperate with each other, and the slide rail extends obliquely upward.
[0045] Specifically, in this embodiment, the driving part 142 is a slider, and the driving mating part 24 is a slide rail. In other embodiments, the driving part 142 may also be a slide rail, and the driving mating part 24 may be a slider.
[0046] Preferably, in this embodiment, the slide rail includes a first positioning part 242, an inclined section, and a second positioning part 244 connected in sequence.
[0047] When the slider slides to the first positioning part 242, the gripper 22 clamps and fixes the pen core 50, and the pen tip 52 is exposed.
[0048] When the slider slides to the second positioning part 244, the gripper 22 is in a released state and the pen tip 52 retracts.
[0049] Specifically, the first positioning part 242 is located above the second positioning part 244.
[0050] More preferably, in this embodiment, the inclined segment includes a first inclined segment 246, a third positioning part 248, and a second inclined segment 249 connected in sequence, and the first positioning part 242, the first inclined segment 246, the third positioning part 248, the second inclined segment 249, and the second positioning part 244 are connected in sequence.
[0051] When the slider slides to the third positioning part 248, the gripper 22 clamps and fixes the pen core 50, and the pen tip 52 retracts.
[0052] Specifically, the first positioning part 242 is located above the third positioning part 248, and the third positioning part 248 is located above the second positioning part 244.
[0053] Preferably, in conjunction with the accompanying drawings, in this embodiment, the upper end of the upper shell 14 is provided with a refill hole 102, and the upper end of the pen refill 50 is used to pass through the refill hole 102 and protrude outwards.
[0054] The upper end of the pen refill 50 is exposed after passing through the refill hole 102, which facilitates the replacement of the pen refill 50.
[0055] Specifically, when the slider slides to the second positioning part 244, the upper end of the pen refill 50 is exposed after passing through the refill hole 102. At this time, the gripper 22 is in a loose state, so that the pen refill 50 can be replaced.
[0056] More preferably, in conjunction with the accompanying drawings, in this embodiment, the retractable pen also includes a second reset member 60. The second reset member 60 is connected to the pen core 50 and the outer shell 10 respectively. The second reset member 60 is used to drive the upper end of the pen core 50 to pass through the core replacement hole 102 and protrude outward.
[0057] Specifically, referring to the accompanying drawings, in this embodiment, the second reset member 60 is a spring sleeved on the pen refill 50. The second reset member 60 elastically connects the pen refill 50 and the lower shell 12 respectively. The second reset member 60 is used to drive the upper end of the pen refill 50 through the inner shell 20, clamp the driving member 30 and the refill replacement hole 102 and then protrude to the outside.
[0058] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0059] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.
[0060] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A twist retractable pen characterized by, The utility model relates to a telescopic pen, comprising: a housing, the housing comprising a lower shell and an upper shell rotatably arranged on the lower shell; an inner shell slidably sleeved in the housing, the upper end of the inner shell being provided with a clamping jaw; a clamping driving member arranged between the clamping jaw and the housing; a first reset member arranged between the clamping jaw and the housing, the first reset member being connected with the clamping driving member and the upper shell respectively; and a refill slidably sleeved in the inner shell, the lower end of the refill being provided with a pen point; the clamping driving member moves relative to the clamping jaw, so that the clamping jaw is in a clamping state or a loosening state, when the clamping jaw is in the clamping state, the clamping jaw clamps and fixes the refill, when the clamping jaw is in the loosening state, the refill can slide up and down relative to the clamping jaw; the upper shell and the inner shell are respectively provided with driving parts and driving matching parts matched with each other, the upper shell rotates relative to the lower shell, thereby driving the inner shell to move up and down relative to the housing, when the inner shell moves downward relative to the housing, the clamping driving member moves upward relative to the clamping jaw, thereby making the clamping jaw be in the clamping state, the clamping jaw clamps and fixes the refill, when the inner shell continues to move downward relative to the housing, the inner shell drives the refill to move downward, thereby making the pen point be exposed outside.
2. The rotating retractable pen according to claim 1, wherein the lower end of the lower shell is provided with a pen point hole, the pen point is used to be exposed outside after penetrating through the pen point hole.
3. The rotating retractable pen of claim 2, wherein, the clamping jaw is at least two, the at least two clamping jaws extend obliquely upward.
4. The rotating retractable pen according to claim 3, wherein the clamping driving member is a sleeve arranged outside the clamping jaw.
5. The rotating retractable pen of claim 4, wherein, the first reset member is a spring sleeved outside the clamping jaw, the clamping driving member is located above the first reset member.
6. The rotating retractable pen of claim 2, wherein, the driving part and the driving matching part are a sliding block and a sliding rail matched with each other, the sliding rail extends obliquely upward.
7. The rotating retractable pen of claim 6, wherein, the sliding rail comprises a first positioning part, an oblique section and a second positioning part connected in sequence; when the sliding block slides to the first positioning part, the clamping jaw clamps and fixes the refill, and the pen point is exposed outside; when the sliding block slides to the second positioning part, the clamping jaw is in the loosening state, and the pen point is retracted.
8. The rotating retractable pen of claim 7, wherein, the oblique section comprises a first oblique section, a third positioning part and a second oblique section connected in sequence, the first positioning part, the first oblique section, the third positioning part, the second oblique section and the second positioning part are connected in sequence; when the sliding block slides to the third positioning part, the clamping jaw clamps and fixes the refill, and the pen point is retracted.
9. The retracting pen according to any one of claims 1 to 8, wherein the upper end of the upper shell is provided with a refill hole, the upper end of the refill is used to be exposed outside after penetrating through the refill hole.
10. The rotating retractable pen of claim 9, wherein, the telescopic pen further comprises a second reset member, the second reset member is connected with the refill and the housing respectively, and the second reset member is used to drive the upper end of the refill to be exposed outside after penetrating through the refill hole.