Business sign pen with low-damping spring head

Abstract

The utility model discloses a low-damping spring head business sign pen which comprises a pen holder, a pen head is connected in the pen holder in a threaded mode, and a limiting groove and a threaded groove are formed in the circumferential inner wall of the pen holder and communicated with each other. A pen cap is slidably connected into the pen holder, a hard coil is fixedly connected to the circumferential surface of the pen cap and slidably connected to the circumferential inner wall of the threaded groove, and a refill positioning sleeve is fixedly connected to one end of the hard coil. The pen further comprises a limiting sliding sleeve, the limiting sliding sleeve is movably clamped to the circumferential surface of the pen refill, the upper end and the lower end of the limiting sliding sleeve are fixedly connected with limiting springs, one end of one limiting spring located on the lower side is fixedly connected to the inner wall of the bottom of the pen point, and the other limiting spring located on the upper side is movably clamped to the outer surface of the pen refill. The pen has the advantages that the position of the refill can be flexibly adjusted, and writing damping is reduced.

Description

Technical Field

[0001] This utility model relates to a business signing pen, and more particularly to a low-damping spring-tipped business signing pen. Background Technology

[0002] A ballpoint pen is a pen specifically designed for signing or affixing signatures, primarily divided into water-based and oil-based ballpoint pens. Currently, traditional ballpoint pens have certain shortcomings in use. On the one hand, they cannot quickly adjust the position of the lead, making it difficult to adapt to different writing pressures and complex paper conditions. When faced with situations such as rough paper or changes in writing pressure habits, they cannot flexibly adjust to ensure writing stability and smoothness. On the other hand, they fail to effectively reduce writing resistance, resulting in significant frictional resistance during writing, affecting not only the smoothness of writing but also easily causing hand fatigue with prolonged use. Therefore, there is an urgent need to develop a ballpoint pen that allows for flexible lead position adjustment and reduces writing resistance to meet user needs. Utility Model Content

[0003] The purpose of this invention is to provide a low-damping spring-tipped business pen. This invention features flexible adjustment of the pen tip position and reduced writing resistance.

[0004] The technical solution of this utility model: a low-damping spring-tipped business pen, including a pen barrel, with a pen tip internally threaded to the barrel. A limiting groove and a threaded groove are formed on the inner circumference of the pen barrel, and the limiting groove and the threaded groove are interconnected. A pen cap is slidably connected inside the pen barrel, and a rigid screw ring is fixedly connected to the circumferential surface of the pen cap. The rigid screw ring is slidably connected to the inner circumferential wall of the threaded groove, and a pen refill positioning sleeve is fixedly connected to one end of the rigid screw ring. It also includes a limiting sleeve, which is movably engaged with the circumferential surface of the pen refill. Limiting springs are fixedly connected to both the upper and lower ends of the limiting sleeve. One end of the lower limiting spring is fixedly connected to the bottom inner wall of the pen tip, and the other limiting spring is movably engaged with the outer surface of the pen refill.

[0005] In the aforementioned low-damping spring-tip business pen, a frosted arc-shaped piece is provided on the circumferential surface of the pen barrel, and two arc-shaped clamps are fixedly connected to the circumferential surface of the pen barrel.

[0006] In the aforementioned low-damping spring-tipped business pen, the pen barrel and the pen tip are movably engaged with anti-slip plastic sleeves at their near ends.

[0007] In the aforementioned low-damping spring-tip business pen, four limiting plates are fixedly connected to the circumferential surface of the pen refill positioning sleeve, and the four limiting plates are all sleeved on the outer surface of the rigid screw ring.

[0008] In the aforementioned low-damping spring-tipped business pen, a limiting ring is provided on the upper side of the limiting sleeve, and the limiting ring is fixedly connected to the inner circumferential wall of the pen tip.

[0009] In the aforementioned low-damping spring-tip business pen, the top of the pen barrel is fixedly connected to a protective ring, and the circumferential diameter of the protective ring matches that of the pen cap.

[0010] In the aforementioned low-damping spring-tip business pen, three anti-slip grooves are formed on the circumferential surface of the pen barrel.

[0011] Compared with existing technologies, this utility model, through the coordinated design of the pen cap, rigid screw ring, pen refill positioning sleeve, and threaded groove and limiting groove on the pen barrel, allows users to easily and flexibly adjust the position of the pen refill by rotating the pen cap. It can quickly adjust the pen refill extension length to suit different writing pressures and paper conditions. For example, when writing with increased pressure on rough paper, the pen cap can be rotated to extend the pen refill further, ensuring smooth writing; when writing with precision, the pen retracts, improving writing accuracy and effectively enhancing writing stability and fluency, adapting to various writing scenarios.

[0012] The pen tip is made of titanium alloy and has undergone special rounding treatment, which reduces the friction between the pen tip and the paper from the source, reduces writing damping, further reduces the burden on the user's hand, makes the writing process smoother, reduces hand fatigue, and can maintain a high level of comfort and writing efficiency even after long periods of writing, meeting the needs of long-term writing in business offices.

[0013] In addition, this application utilizes a frosted curved plate, a curved clamp, and anti-slip grooves on the pen barrel, as well as an anti-slip plastic sleeve at the connection between the pen tip and the barrel, to enhance the pen's anti-slip performance and grip stability. This allows users to hold the pen more firmly, reducing uneven hand force and slippage, indirectly reducing the problem of increased writing resistance caused by an unstable grip, ensuring stability in writing direction and force. The protective ring protects the top of the pen barrel, reducing wear and extending the pen's lifespan, thus improving the pen's overall practicality and reliability, and adapting it to various usage environments. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a first-view sectional perspective view of the present invention;

[0016] Figure 3 In this utility model Figure 2 A magnified view of part A;

[0017] Figure 4 This is a second-view sectional perspective view of the present invention;

[0018] Figure 5 In this utility model Figure 4 A magnified view of section B.

[0019] In the diagram: 1. Pen barrel; 2. Pen tip; 3. Anti-slip plastic sleeve; 4. Anti-slip groove; 5. Pen cap; 6. Arc-shaped clamp; 7. Frosted arc-shaped piece; 8. Pen refill; 9. Pen refill positioning sleeve; 10. Limiting plate; 11. Rigid screw ring; 12. Threaded groove; 13. Limiting groove; 14. Limiting spring; 15. Limiting slide sleeve; 16. Limiting ring; 17. Protective ring. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0021] Example: A low-damping spring-tipped business pen, configured as follows... Figure 1-5 As shown, it includes: a pen barrel 1, a pen tip 2 connected to the inner thread of the pen barrel 1, a limiting groove 13 and a threaded groove 12 formed on the inner circumference of the pen barrel 1, the limiting groove 13 and the threaded groove 12 communicating with each other, a pen cap 5 slidably connected inside the pen barrel 1, a rigid screw ring 11 fixedly connected to the circumference surface of the pen cap 5, the rigid screw ring 11 slidably connected to the inner circumference of the threaded groove 12, and a pen refill positioning sleeve 9 fixedly connected to one end of the rigid screw ring 11;

[0022] The limiting sleeve 15 is movably engaged with the circumferential surface of the pen refill 8. Both the upper and lower ends of the limiting sleeve 15 are fixedly connected to limiting springs 14. One end of one of the limiting springs 14 on the lower side is fixedly connected to the bottom inner wall of the pen tip 2, and the other limiting spring 14 on the upper side is movably engaged with the outer surface of the pen refill 8.

[0023] In a specific embodiment of this utility model, the tip of the pen refill 8 is made of titanium alloy. The front end of the pen tip is specially rounded to reduce friction with the paper and thus reduce the damping of the pen tip. The limiting groove 13 and the threaded groove 12 on the inner circumference of the pen barrel 1 are interconnected. This design provides guidance and limiting functions for the movement of the pen cap 5 and its related components. The limiting groove 13 can restrict the movement of the pen cap 5 in a specific direction, preventing it from rotating excessively or deviating from the predetermined movement trajectory, while the threaded groove 12 cooperates with the rigid screw ring 11 on the pen cap 5, so that the pen cap 5 can move to adjust the position of the pen refill 8 when rotating.

[0024] The pen tip 2 is the direct writing component. Working in conjunction with the pen refill 8, it guides the ink within the refill 8 to the pen tip, ensuring even ink distribution on the paper for smooth writing. Its internal structure is tightly fitted to the pen refill 8, ensuring its stability during writing and preventing wobbling or shifting, thus guaranteeing the uniformity and clarity of the written lines.

[0025] The threaded groove 12 and the rigid screw ring 11 cooperate to realize a mechanical transmission method that converts rotational motion into linear motion. When the user rotates the pen cap 5, the rigid screw ring 11 rotates and moves along the thread trajectory within the threaded groove 12. Due to the helical structure characteristics of the thread, the rigid screw ring 11 will simultaneously generate a linear displacement along the axis of the pen barrel 1.

[0026] The limiting spring 14 is located at the upper and lower ends of the limiting sleeve 15, providing elastic cushioning and position adjustment for the pen refill 8. When the writing pressure is large, the pen refill 8 will be subjected to downward pressure. At this time, the limiting spring 14 located on the lower side will be compressed to absorb some of the pressure and prevent the pen refill 8 from being damaged by excessive impact.

[0027] Please refer to the details. Figures 1-4 The pen barrel 1 has a frosted arc-shaped piece 7 on its circumferential surface, and two arc-shaped clamping rods 6 are fixedly connected to the circumferential surface of the pen barrel 1.

[0028] In this embodiment: the arc-shaped clamp 6 is used to clamp books, etc., so that the pen barrel 1 can be pressed tightly against one side of the book, and the frosted arc-shaped piece 7 can increase the friction between the pen barrel 1 and the book, making the pen barrel 1 less likely to wobble.

[0029] Please refer to the details. Figures 1-3 The pen barrel 1 and the pen tip 2 are connected to a non-slip plastic sleeve 3 at their close ends.

[0030] In this embodiment, the anti-slip properties of the anti-slip plastic sleeve 3 can provide additional friction when the user holds the pen barrel 1 close to the pen tip 2, preventing slippage from affecting writing.

[0031] Please refer to the details. Figure 2 Four limiting plates 10 are fixedly connected to the circumferential surface of the pen refill positioning sleeve 9, and the four limiting plates 10 are all sleeved on the outer surface of the rigid screw ring 11.

[0032] In this embodiment, the presence of four limiting plates 10 is to ensure the stability and accuracy of the pen refill positioning sleeve 9 when it follows the rigid screw ring 11.

[0033] Please refer to the details. Figures 1-4 The upper side of the limiting sleeve 15 is provided with a limiting ring 16, which is fixedly connected to the inner circumference of the pen tip 2.

[0034] In this embodiment, the limiting ring 16 cooperates with the limiting sleeve 15 to more precisely limit the movement range of the pen tip 8. The limiting ring 16 is located on the inner circumference of the pen tip 2. When the pen tip 8 is subjected to an upward force, the limiting sleeve 15 will move upward, while the limiting ring 16 prevents the limiting sleeve 15 from displacing excessively upward.

[0035] Please refer to the details. Figures 1-3The top of the pen barrel 1 is fixedly connected to the protective ring 17, and the circumference diameter of the protective ring 17 matches that of the pen cap 5.

[0036] In this embodiment, the protective ring 17 mainly serves to protect the top of the pen barrel 1 and reduce wear on the top of the pen barrel 1.

[0037] Please refer to the details. Figures 1-4 The pen barrel 1 has three anti-slip grooves 4 on its circumferential surface.

[0038] In this embodiment, the design of three anti-slip grooves 4 further enhances the anti-slip performance of the pen barrel 1. Complementing the functions of the frosted arc-shaped piece 7 and the arc-shaped clamping rod 6, the anti-slip grooves 4 provide additional friction for the user at different grip positions and angles.

[0039] The working principle and usage of this utility model are as follows: When it is necessary to adapt to greater writing force or rough paper surfaces, such as when writing on thicker paper or writing with force, the user rotates the pen cap 5. Because the rigid screw ring 11 on the circumferential surface of the pen cap 5 cooperates with the threaded groove 12 on the inner wall of the pen barrel 1, the rigid screw ring 11 will rotate and move along the threaded trajectory within the threaded groove 12.

[0040] As the rigid screw ring 11 rotates, it simultaneously generates a linear displacement along the axis of the pen barrel 1. This is because the helical structure of the thread converts rotational motion into linear motion. One end of the rigid screw ring 11 is fixedly connected to the pen refill positioning sleeve 9, which moves as the rigid screw ring 11 moves.

[0041] During its movement, the pen refill positioning sleeve 9 pushes the pen refill 8 downwards, increasing the length of the pen refill 8 extending beyond the pen tip 2. At this time, the limiting spring 14 located on the inner wall at the bottom of the pen tip 2 is compressed, providing downward elastic cushioning for the pen refill 8. This absorbs the greater pressure during writing, preventing damage to the pen refill 8 due to excessive impact, while ensuring the pen refill 8 remains stable under varying writing pressure, adapting to different writing strengths, and ensuring smooth writing even on rough paper. Four limiting plates 10, fixedly connected to the circumferential surface of the pen refill positioning sleeve 9, are fitted onto the outer surface of the rigid screw ring 11, ensuring the stability and accuracy of the pen refill positioning sleeve 9 as it moves with the rigid screw ring 11.

[0042] When a lighter writing pressure or fine writing is required, such as writing on thin paper or performing delicate tasks like drawing, the pen cap 5 is rotated in the reverse direction. The rigid screw ring 11 rotates in the reverse direction and moves linearly in the opposite direction along the threaded groove 12, causing the pen refill positioning sleeve 9 to move upward, thereby pulling the pen refill 8 upward and retracting it a certain length into the pen tip 2. The limiting spring 14 located on the outer surface of the pen refill 8 is stretched, providing an upward elastic restoring force, assisting the pen refill positioning sleeve 9 in positioning the pen refill 8 at a suitable shorter protrusion length position, ensuring the accuracy and smoothness of fine writing. The pen tip of the pen refill 8 is made of titanium alloy, and the tip end of the pen tip has undergone special rounding treatment to reduce friction with the paper and reduce the damping of the pen tip.

Claims

1. A low-damping spring-tipped business pen, characterized by: The pen includes a pen barrel (1), a pen tip (2) is threadedly connected to the pen barrel (1), and a limiting groove (13) and a threaded groove (12) are formed on the inner circumference of the pen barrel (1), which are interconnected; a pen cap (5) is slidably connected inside the pen barrel (1), and a rigid screw ring (11) is fixedly connected to the circumference of the pen cap (5), which is slidably connected to the inner circumference of the threaded groove (12). 11) One end is fixedly connected to a pen refill positioning sleeve (9); it also includes a limiting slide sleeve (15), which is movably engaged with the circumferential surface of the pen refill (8). Both the upper and lower ends of the limiting slide sleeve (15) are fixedly connected to limiting springs (14). One end of one of the limiting springs (14) located on the lower side is fixedly connected to the bottom inner wall of the pen tip (2), and the other limiting spring (14) located on the upper side is movably engaged with the outer surface of the pen refill (8).

2. The low-damping spring-tipped business pen according to claim 1, characterized in that: The pen barrel (1) has a frosted arc-shaped piece (7) on its circumferential surface, and two arc-shaped clamps (6) are fixedly connected to the circumferential surface of the pen barrel (1).

3. The low-damping spring-tipped business pen according to claim 2, characterized in that: The pen barrel (1) and pen tip (2) are movably engaged with anti-slip plastic sleeves (3) at their close ends.

4. The low-damping spring-tip business pen according to claim 3, characterized in that: The circumferential surface of the pen refill positioning sleeve (9) is fixedly connected with four limiting plates (10), and the four limiting plates (10) are all sleeved on the outer surface of the rigid screw ring (11).

5. The low-damping spring-tipped business pen according to claim 4, characterized in that: The upper side of the limiting sleeve (15) is provided with a limiting ring (16), which is fixedly connected to the inner circumference of the pen tip (2).

6. The low-damping spring-tipped business pen according to claim 5, characterized in that: The top of the pen barrel (1) is fixedly connected to the protective ring (17), and the circumferential diameter of the protective ring (17) and the pen cap (5) are matched.

7. The low-damping spring-tip business pen according to claim 6, characterized in that: The pen barrel (1) has three anti-slip grooves (4) on its circumferential surface.

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