A lift pen
By combining a retractable writing sleeve with a return spring, the problem of numerous and long parts in the pen was solved, resulting in a smaller pen size and a more compact structure that is easy to assemble and mass-produce.
Patent Information
- Application Number
- CN202521548592.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-23
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-07-23
AI Technical Summary
Existing lifting pens have a large number of parts, are long, not small or novel enough, and are inconvenient to assemble.
The pen retractable writing sleeve, return spring, and retractable slider are combined with elastic deformation force and return spring design to realize the retraction operation of the pen refill. The combination of the jumping slope and the limiting end of the retractable slider simplifies the component structure and optimizes the refilling and retracting process.
This resulted in a smaller pen size, a more compact structure, easier assembly, easier mass production, fewer parts, and an improved user experience.
Smart Images
Figure CN224940860U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pens, and in particular to a lift pen. Background Technology
[0002] As an essential daily writing tool, the pen undergoes continuous structural design optimization to meet users' ever-increasing demands for convenience, reliability, and user experience. Protecting the pen tip from damage is paramount for extending its lifespan and increasing structural reliability. Currently, the most common methods for protecting the pen tip on the market include press-type and pull-type. The press-type, as the mainstream operating method for a long period of social development, has the advantages of stable structure and easy assembly, but also disadvantages such as numerous parts and long length. The pull-type, as a newly emerging operating method, has the advantages of fewer parts and ease of use, but also disadvantages such as complex parts, high processing costs, and inconvenient assembly.
[0003] Therefore, there is a need for a novel and unique new type of lifting pen that can take into account the advantages and optimize the disadvantages. Summary of the Invention
[0004] The purpose of this invention is to solve the problems of existing pens having a large number of parts, being too long, not being small enough, and not being novel enough, and to provide a lifting pen.
[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: A pull-up pen includes a retractable, interlocking writing sleeve, a return spring, and a refill. It also includes a refill slider with a ramp.
[0006] The writing sleeve consists of an inner rod and an outer rod, and the writing sleeve is provided with a mating end and a limiting end.
[0007] The mating end and / or limiting end have elastic deformation force.
[0008] The mating end and the limiting end are respectively provided on the outer rod and the inner rod, and the core-collecting sliding member is provided inside the outer rod or installed on the outside of the inner rod.
[0009] The pen refill is located inside the writing sleeve, and the return spring is located between the pen refill and the inner rod, or between the pen refill and the outer rod, or between the inner rod and the outer rod.
[0010] As a preferred embodiment of this utility model, when the lead is ejected, the mating end is affected by the limiting end and the return spring, so that the inner rod and the outer rod remain in the extension and retraction state when the lead is ejected. At this time, the lead part is exposed on the writing sleeve. The mating end and the limiting end form a continuous temporary limiting state through the return spring.
[0011] When the core is retracted, the writing sleeve extends and retracts further, causing the mating end to jump over the core-retracting slider and reach the other side of the core-retracting slider. At this time, releasing the extension and retraction of the writing sleeve causes the inner and outer rods to move away from each other due to the action of the return spring. At this time, the mating end drives the core-retracting slider to move towards the limiting end. When the core-retracting slider cannot move further due to the influence of the limiting end, the mating end jumps away from the core-retracting slider and the limiting end through the jumping slope of the limiting end.
[0012] As a preferred embodiment of this utility model, a reset element is provided between the core-collecting sliding member and the outer rod or between the core-collecting sliding member and the inner rod.
[0013] As a preferred embodiment of this utility model, a sliding limiting part is further provided on the upper or lower side of the limiting end.
[0014] As a preferred embodiment of this utility model, the outer rod is also provided with a tail cap.
[0015] As a preferred embodiment of this invention: the inner rod may also be detachably equipped with a core-exiting component, which can slide relative to the core-exiting component. The core-exiting component limits the core-exit stroke, preventing excessive travel during core expulsion and ensuring the mating end directly passes the limiting end and continues past the core-retracting sliding component. When the core-exiting component is moved, it will contact the outer rod after reaching the core-exit stroke, thus preventing further upward movement. When core retraction is required, the inner rod needs to be pulled directly to move it further upward and retract the core.
[0016] As a preferred embodiment of this utility model, a reset element is provided between the core and the inner rod or between the core and the outer rod.
[0017] As a preferred embodiment of this utility model: the reset component uses the elastic force or tension of a spring, the elastic force of a sheet, or the magnetic force or repulsive force of a magnet to keep the core-collecting sliding component away from the limiting end without external interference, so that the pulled-out core component remains relatively close to the outer rod.
[0018] As a preferred embodiment of this utility model, the inner rod is further provided with a linkage part, which passes through the outer rod and is partially exposed or completely hidden in the outer rod.
[0019] As a preferred embodiment of this invention, the writing sleeve is provided with an anti-slip part and a non-slip part. The anti-slip part is located on the outer rod, and the non-slip part is located on the inner rod. The anti-slip part and the non-slip part ensure that the inner rod and the outer rod remain in a fitted state and do not separate.
[0020] Compared with existing technologies, the above technical solution has the following beneficial effects: First, it is small in size. Compared with pens commonly found on the market, it is shorter in length, but there is no difference in outer diameter and grip.
[0021] Second, its ingenious structure achieves better results with fewer parts and a smaller size.
[0022] Third, it is easy to assemble and facilitates mass production. With a reduction in the number of parts, it fully considers the actual production situation and is optimized for mass production. Attached Figure Description
[0023] Figure 1 This is an exploded view of Embodiment 1 of this utility model.
[0024] Figure 2 This is a cross-sectional view and a partial enlarged view of Embodiment 1 of this utility model.
[0025] Figure 3 This is a cross-sectional view and a partial enlarged view of Embodiment 2 of this utility model.
[0026] Figure 4 This is a cross-sectional view and a partial enlarged view of Embodiment 3 of this utility model.
[0027] Figure 5 This is an exploded view of Embodiment 4 of this utility model.
[0028] Figure 6 This is a cross-sectional view and a partial enlarged view of Embodiment 4 of this utility model.
[0029] Figure 7 This is a cross-sectional view and a partial enlarged view of Embodiment 5 of this utility model.
[0030] Figure 8 This is a three-dimensional schematic diagram of Embodiment 5 of the present invention.
[0031] Figure label: 1. Inner rod. 11. Anti-detachment part. 12. Anti-detachment part. 13. Tail cap. 14. Pull-out core component.
[0032] 2. Outer rod. 23. Linkage mechanism.
[0033] 3. Return spring.
[0034] 4. Pen refill.
[0035] 5. Reset component.
[0036] A. Mating end. B. Core-retracting sliding component. B1. Jumping slope. B2. Sliding limiting part. C. Limiting end. Detailed Implementation
[0037] The present invention will now be further described with reference to the accompanying drawings. Example 1
[0038] like Figures 1 to 2The illustrated pen includes a retractable writing sleeve that interlocks with each other, a return spring 3, and a refill 4. It also includes a refill slider B, which has a spring ramp B1.
[0039] The writing sleeve consists of an inner rod 1 and an outer rod 2, and the writing sleeve is provided with the aforementioned mating end A and limiting end C.
[0040] The aforementioned mating end A has an elastic deformation force.
[0041] The aforementioned mating end A is located on the outer rod 2. The aforementioned limiting end C is located on the inner rod 1, and the aforementioned core-collecting sliding member B is located on the outer side of the inner rod 1.
[0042] The aforementioned pen refill 4 is located inside the writing sleeve, and the aforementioned return spring 3 is located between the pen refill 4 and the inner rod 1.
[0043] When the pen tip is extended, the inner rod 1 is pulled up, and the limiting end C moves towards the mating end A, thereby forming a mating connection between the mating end A and the limiting end C. The mating end A is affected by the limiting end C and the return spring 3, which keeps the inner rod 1 and the outer rod 2 in the extended state when the pen tip is extended. At this time, the writing part of the pen tip 4 is exposed on the writing sleeve.
[0044] During the core-retracting process, the inner rod 1 is continuously pulled up while the core is extended, causing the mating end A to jump over the core-retracting slider B and reach the other side of the core-retracting slider B. At this time, the pull on the inner rod 1 is released, and the inner rod 1 and the outer rod 2 move away from each other due to the action of the return spring 3. At this time, the mating end A drives the core-retracting slider B to move towards the limiting end C. When the core-retracting slider B cannot move further due to the influence of the limiting end C, the mating end A jumps away from the core-retracting slider B and the limiting end C through the jumping slope B1 of the core-retracting slider B.
[0045] The aforementioned limiting end C is also provided with a sliding limiting part B2.
[0046] The writing sleeve is provided with an anti-slip part 11 and an anti-slip part 12. The anti-slip part 11 is provided on the outer rod 2. The anti-slip part 12 is provided on the inner rod 1. The anti-slip part 11 and the anti-slip part 12 can keep the inner rod 1 and the outer rod 2 in a fitted state and prevent them from separating. Example 2
[0047] like Figure 3 The difference between the lifting pen shown and Example 1 is that: The anti-hair loss section 11 and the anti-hair loss section 12 have different styles.
[0048] A reset member 5 is provided between the aforementioned core-collecting slider B and the inner rod 1. Through the action of the reset member 5, the core-collecting slider B can return to its initial position more quickly after completing the core-collecting action.
[0049] The outer rod 2 is also equipped with a tail cap 13. Example 3
[0050] like Figure 4 The difference between the lifting pen shown and Example 1 is that: The B-type core-collecting slider has a different style and adopts a more compact structure, reducing usage errors.
[0051] The aforementioned mating end A replaces the anti-detachment part 12. Through the cooperation of the mating end A and the anti-detachment part 11, the inner rod 1 and the outer rod 2 are kept in a fitted state and do not separate. Example 4
[0052] like Figures 5 to 6 The illustrated pen includes a retractable writing sleeve that interlocks with each other, a return spring 3, and a pen refill 4. Its distinguishing feature is that it further includes a refill sliding member B, which has a spring ramp B1.
[0053] The writing sleeve consists of an inner rod 1 and an outer rod 2, and the writing sleeve is provided with the mating end A and the limiting end C.
[0054] The aforementioned mating end A has an elastic deformation force.
[0055] The aforementioned mating end A is located on the inner rod 1, the aforementioned limiting end C is located on the outer rod 2, and the aforementioned core-collecting sliding member B is located on the inner side of the outer rod 2.
[0056] The aforementioned pen refill 4 is located inside the writing sleeve, and the aforementioned return spring 3 is located between the pen refill 4 and the inner rod 1.
[0057] When the pen tip is extended, the inner rod 1 is pulled up, and the mating end A moves towards the limiting end C, thus forming a mating relationship between the mating end A and the limiting end C. The mating end A is affected by the limiting end C and the return spring 3, causing the inner rod 1 and the outer rod 2 to remain in the extended / retracted state. At this time, the writing part of the pen tip 4 is exposed on the writing sleeve.
[0058] During the core-retracting process, the inner rod 1 is continuously pulled up while the core is extended, causing the mating end A to jump over the core-retracting slider B and reach the other side of the core-retracting slider B. At this time, the pull on the inner rod 1 is released, and the inner rod 1 and the outer rod 2 move away from each other due to the action of the return spring 3. At this time, the mating end A drives the core-retracting slider B to move towards the limiting end C. When the core-retracting slider B is unable to move further due to the influence of the limiting end C, the mating end A jumps away from the core-retracting slider B and the limiting end C through the jumping slope B1 of the core-retracting slider B.
[0059] A reset element 5 is provided between the aforementioned core-collecting slider B and the outer rod 2. The reset element 5 uses the tension of a spring to keep the core-collecting slider B away from the limiting end C when there is no external force interference.
[0060] The outer rod 2 is also equipped with a tail cap 13.
[0061] The writing sleeve is provided with an anti-slip part 11 and an anti-slip part 12. The anti-slip part 11 is provided on the outer rod 2. The anti-slip part 12 is provided on the inner rod 1. The anti-slip part 11 and the anti-slip part 12 can keep the inner rod 1 and the outer rod 2 in a fitted state and prevent them from separating. Example 5
[0062] like Figures 7 to 8 The difference between the lifting pen shown and Example 4 is that: The inner rod 1 may also be detachably equipped with a core-exiting component 14. The inner rod 1 can slide relative to the core-exiting component 14. The core-exiting component 14 is used to limit the core-exit stroke to prevent excessive movement during core exit, which would cause the mating end A to directly pass the limiting end C and then continue past the core-retracting sliding component B. When the core-exiting component 14 is moved, after reaching the core-exit stroke, it will come into contact with the outer rod 2, thus preventing it from moving further upward. When core retraction is required, the inner rod 1 needs to be pulled directly to move it further upward and achieve core retraction.
[0063] A reset member 5 is provided between the aforementioned core-pulling component 14 and the outer rod 2. The reset member 5 uses the repulsive force of a magnet to keep the core-retracting sliding component B away from the limiting end C without external interference, so that the core-pulling component 14 remains relatively close to the limiting end C.
[0064] The inner rod 1 is also provided with a linkage part 23, which passes through the outer rod 2 and is partially exposed or completely hidden in the outer rod 2.
Claims
1. A pull-up pen, comprising a retractable writing sleeve that interlocks with each other, a return spring (3), and a pen refill (4); characterized in that: It also includes a core-collecting slider (B), which has a jumping slope (B1). The writing sleeve consists of an inner rod (1) and an outer rod (2), and the writing sleeve is provided with a mating end (A) and a limiting end (C); the mating end (A) and the limiting end (C) are respectively provided on the outer rod (2) and the inner rod (1); The mating end (A) and / or the limiting end (C) have elastic deformation force; the core-collecting sliding member (B) is located inside the outer rod (2) or installed on the outside of the inner rod (1); The pen refill (4) is located inside the writing sleeve, and the return spring (3) is located between the pen refill (4) and the inner rod (1), or between the pen refill and the outer rod (2), or between the inner rod (1) and the outer rod (2).
2. A lifting pen according to claim 1, characterized in that: When the lead is ejected, the mating end (A) is affected by the limiting end (C) and the return spring (3), so that the inner rod (1) and the outer rod (2) remain in the extension and retraction state when the lead is ejected. At this time, the lead (4) is partially exposed on the writing sleeve. When the core is closed, the writing sleeve extends and retracts further, causing the mating end (A) to jump over the core closing slider (B) and reach the other side of the core closing slider (B). At this time, when the extension and retraction of the writing sleeve is released, it is affected by the return spring (3), and the inner rod (1) and the outer rod (2) move away from each other. At this time, the mating end (A) drives the core closing slider (B) to move towards the limiting end (C). When the core closing slider (B) cannot move further due to the influence of the limiting end (C), the mating end (A) jumps away from the core closing slider (B) and the limiting end (C) through the jumping slope (B1) of the limiting end (C).
3. A lifting pen according to claim 1, characterized in that: A reset member (5) is provided between the core-collecting slider (B) and the outer rod (2) or between the core-collecting slider (B) and the inner rod (1).
4. A lifting pen according to claim 1, characterized in that: The upper or lower side of the limiting end (C) is also provided with a sliding limiting part (B2).
5. A lifting pen according to claim 1, characterized in that: The outer rod (2) is also provided with a tail cap (13).
6. A lifting pen according to claim 1, characterized in that: The inner rod (1) may also be detachably provided with a core-pulling component (14), the inner rod (1) can slide relative to the core-pulling component (14), and the core-pulling component (14) is used to limit the core-pulling stroke.
7. A lifting pen according to claim 6, characterized in that: A reset member (5) is provided between the pull-out core (14) and the inner rod (1) or between the pull-out core (14) and the outer rod (2).
8. A lifting pen according to any one of claims 3 or 7, characterized in that: The reset component (5) is made of the elastic force or tension of a spring, the elastic force of a sheet, or the magnetic force or repulsive force of a magnet.
9. A lifting pen according to claim 1, characterized in that: The inner rod (1) is also provided with a linkage part (23), which passes through the outer rod (2) and is partially exposed or completely hidden in the outer rod (2).
10. A lifting pen according to claim 1, characterized in that: The writing sleeve is provided with an anti-slip part (11) and a non-slip part (12); the anti-slip part (11) and the non-slip part (12) are respectively provided on the outer rod (2) and the inner rod (1); the anti-slip part (11) and the non-slip part (12) can keep the inner rod (1) and the outer rod (2) in a fitted state and prevent them from separating.