Silent pen with rotary refill
Through the innovative design of the rotating refill and the disassembly mechanism, the problems of noise and cap loss during use of the silent pen have been solved, achieving a silent effect and convenient replacement, thus improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-27
AI Technical Summary
Existing silent pens generate noise during use, affecting the user experience in quiet environments, and the pen cap is easily lost. Even after structural optimization, the noise problem has not been completely solved, affecting the silent effect.
It adopts a rotating pen refill design, and achieves silent pen refill use through a combination of sliding column, spring and ring sleeve. Combined with the disassembly and assembly mechanism, the pen refill can be replaced easily. The slot structure of fixing block, elastic sheet and locking strip ensures easy disassembly and assembly and locks against slippage.
It achieves a silent effect for convenient use in quiet environments, enhances the user experience, meets the writing needs in quiet environments, and simplifies the refill replacement process.
Smart Images

Figure CN224044933U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of mute pen, especially a pen core rotation type mute pen. BACKGROUND
[0002] With the social development, people's requirements for writing tools are increasingly diversified, both pursuing practical functions and paying attention to use experience, with the increasingly open and shared office environment and the emphasis on quiet atmosphere in learning places, the noise produced by traditional writing pens during operation gradually becomes a problem, and mute pens emerge as the times require, which meet people's needs for convenient use of pen core writing in a quiet environment and avoid noise during pen use. The pen core rotation type mute pen gradually stands out in the stationery market with its unique design and becomes an important innovative product for improving writing efficiency and environmental friendliness.
[0003] The ordinary pen structure is relatively simple, and the opening and closing mode of the cap is used for using and idling the pen, thereby protecting the use safety of the pen core. Although this operation mode protects the pen core, the cap is easy to lose during use, and the noise produced during use is also relatively large, which affects the use experience. The existing pen is optimized in structure, and the use and protection of the pen core are realized through the structure mode of the spring and the clamping position. The operation is more convenient, and the cap loss is avoided. However, such a structure does not consider the relatively large noise produced by the spring clamping position during use, which unnecessarily affects the quiet environment and reduces the use experience, and it is difficult to meet the use demand. UTILITY MODEL CONTENT
[0004] In order to make up for the above shortcomings, the utility model provides a pen core rotation type mute pen, which aims at improving the problem that the pen core produces noise during use in the prior art, unnecessarily affects the quiet environment, lacks mute effect, and reduces the use experience.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a pen core rotation type mute pen, comprising a pen sleeve, a sharp sleeve is fixedly connected to the left end of the pen sleeve, a conical sleeve is fixedly connected to the inner wall of the sharp sleeve, a plurality of slide columns are slidably connected to the outer wall of the conical sleeve, springs are arranged on the outer wall of the slide column, a ring sleeve is fixedly connected to the left end of the slide column, a pen core sheet is arranged on the inner wall of the ring sleeve, an oil pipe is fixedly connected to the right side of the pen core sheet, a threaded block is screwedly connected to the inner wall right side of the pen sleeve, a rotating column is fixedly connected to the right side of the threaded block, and a dismounting mechanism is arranged on the outer wall right side of the pen sleeve.
[0006] Further description of the above technical scheme:
[0007] The disassembling mechanism comprises a fixed block, the outer wall of the fixed block is fixedly connected with the outer wall of the pen sleeve at the right side of the front and back parts, the right side of the fixed block is fixedly connected with an elastic sheet, the right end of the elastic sheet is fixedly connected with a clamping strip, a plurality of clamping grooves are formed in the right side edge of the outer wall of the pen sleeve, a clamping block is slidably connected with the inner wall of the clamping groove, and an anti-dropping sleeve is fixedly connected with the outer wall of the clamping block.
[0008] As a further description of the above technical scheme:
[0009] The left side of the outer wall of the pen sleeve is provided with an anti-skid groove, and the inner wall of the anti-skid groove is fixedly connected with an anti-skid sleeve.
[0010] As a further description of the above technical scheme:
[0011] The outer wall of the anti-skid sleeve is fixedly connected with a plurality of anti-skid strips, and the plurality of anti-skid strips are equidistantly arranged.
[0012] As a further description of the above technical scheme:
[0013] The left side of the pen core sheet is fixedly connected with a pen tip, and the left end of the pen tip is rotatably connected with a cylinder.
[0014] As a further description of the above technical scheme:
[0015] The top end of the outer wall of the pen sleeve is fixedly connected with a label, and the right side of the rotating column is provided with a ventilation hole.
[0016] As a further description of the above technical scheme:
[0017] The outer wall of the rotating column is fixedly connected with a plurality of rotating blocks on the upper side and the lower side, and the plurality of rotating blocks are symmetrically arranged.
[0018] As a further description of the above technical scheme:
[0019] The right side of the outer wall of the pen sleeve is fixedly connected with a mounting ring, and the top of the mounting ring is fixedly connected with a pen clip.
[0020] The utility model has the advantages of the following beneficial effects:
[0021] 1、the utility model discloses a pen sleeve left side fixed sharp suit, conical cover is installed in the inner wall of sharp suit, slide column is slid on conical cover, spring is installed on the outer wall of slide column, ring cover is fixed in the left end of spring, can slide to right, pull pen core sheet and oil pipe, make the pen core retract, twist rotating column and drive screw block rotation, cooperate pen sleeve inner wall screw and press out pen core, this structure realizes mute use through screw thread extrusion, convenient operation, improves experience, increases mute function, satisfies demand.
[0022] 2. The utility model discloses a fixing block is fixed in the elastic sheet right side of the outer wall of the pen cover, and the right end of the elastic sheet is connected with the clamping strip, when replacing the refill, only need to break the clamping strip, let the clamping block insert the clamping slot, and the elastic sheet resets the clamping strip and clamps the clamping block, locks the anti -off sleeve, when disassembling, break the clamping strip and slide out the anti -off sleeve, and this structure is convenient for quick assembly and disassembly silent pen, and the refill is replaced. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 A pen cover front side perspective drawing of a refill rotating type silent pen is provided for the utility model;
[0024] Figure 2 A oil pipe partial structure split drawing of a refill rotating type silent pen is provided for the utility model;
[0025] Figure 3 A conical cover partial structure drawing of a refill rotating type silent pen is provided for the utility model;
[0026] Figure 4 A rotating column partial structure display drawing of a refill rotating type silent pen is provided for the utility model;
[0027] Figure 5 A anti -off sleeve partial structure schematic view of a refill rotating type silent pen is provided for the utility model.
[0028] Legend:
[0029] 1, pen cover, 2, dismounting mechanism, 201, fixed block, 202, elastic sheet, 203, clamping strip, 204, clamping slot, 205, clamping block, 206, anti -off sleeve, 3, sharp cover, 4, conical cover, 5, sliding column, 6, spring, 7, ring cover, 8, refill sheet, 9, oil pipe, 10, threaded block, 11, rotating column, 12, anti -slip groove, 13, anti -slip cover, 14, anti -slip strip, 15, pen nib, 16, cylinder, 17, label, 18, air hole, 19, rotating block, 20, mounting ring, 21, pen clamp. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0031] Please refer to the drawings of the embodiments of the utility model Figure 1 , the drawings of the embodiments of the utility model Figure 2 and the drawings of the embodiments of the utility model Figure 3An embodiment of this utility model provides: a rotary silent pen, including a pen sleeve 1, a pointed sleeve 3 fixedly connected to the left end of the pen sleeve 1, a conical sleeve 4 fixedly connected to the inner wall of the pointed sleeve 3, a plurality of sliding pillars 5 slidably connected to the outer wall of the conical sleeve 4, a spring 6 provided on the outer wall of the sliding pillar 5, a ring sleeve 7 fixedly connected to the left end of the sliding pillar 5, a pen chip 8 provided on the inner wall of the ring sleeve 7, an oil pipe 9 fixedly connected to the right side of the pen chip 8, a threaded block 10 threadedly connected to the right side of the inner wall of the pen sleeve 1, a rotating pillar 11 fixedly connected to the right side of the threaded block 10, and a disassembly and assembly mechanism 2 provided on the right side of the outer wall of the pen sleeve 1, the disassembly and assembly mechanism 2 being used for quickly disassembling and assembling the silent pen;
[0032] Specifically, the pen cap 1 is the main body of the entire silent pen. One end of it is connected to a pointed sleeve 3, and the inner wall of the pointed sleeve 3 is fixedly connected to a conical sleeve 4. This conical sleeve 4 ensures the installation of the sliding column 5 and also guides the pen refill. The outer surface of these sliding columns 5 is also equipped with springs 6 to ensure that they can move flexibly. The other end of the sliding column 5 is fixedly connected to a ring sleeve 7. The inner wall of the ring sleeve 7 is equipped with a pen chip 8 to ensure that the pen refill can be driven by the ring sleeve 7. The pen chip 8 is connected to the ink tube 9 for delivering ink. The right side of the inner wall of the pen cap 1 is connected to a threaded block 10 by threads. The right side of the threaded block 10 is fixedly connected to a rotating post 11, which makes the use of the pen refill silent and convenient. In order to facilitate quick disassembly and assembly by users, a disassembly and assembly mechanism 2 is provided on the pen cap 1. This disassembly and assembly mechanism 2 makes the disassembly and assembly of the silent pen simple and quick.
[0033] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5 The disassembly and assembly mechanism 2 includes a fixing block 201. The outer wall of the fixing block 201 is fixedly connected to the front and rear right sides of the outer wall of the pen sleeve 1. An elastic sheet 202 is fixedly connected to the right side of the fixing block 201. A locking strip 203 is fixedly connected to the right end of the elastic sheet 202. Multiple slots 204 are provided on the right edge of the outer wall of the pen sleeve 1. A locking block 205 is slidably connected to the inner wall of the slot 204. An anti-detachment sleeve 206 is fixedly connected to the outer wall of the locking block 205.
[0034] Specific, fixed block 201 and pen sleeve 1 are firmly connected to ensure its functionality and stability, the whole disassembly mechanism 2 provides the necessary support, the elastic sheet 202 has a certain elasticity and flexibility, can produce deformation when subjected to external force, so as to achieve a certain buffer and protection effect, the right end of the elastic sheet 202 is fixedly connected with the clamping strip 203, the clamping strip 203 makes it can be used with multiple clamping grooves 204 on the right side edge of the outer wall of the pen sleeve 1, the clamping groove 204 is evenly provided on the right side edge of the outer wall of the pen sleeve 1, the inner wall of which can be slidably connected with the clamping block 205, the outer wall of the clamping block 205 is fixedly connected with the anti-falling sleeve 206, the function of the anti-falling sleeve 206 is to prevent the clamping block 205 from falling off during use, so as to ensure the safety and reliability of the whole disassembly mechanism 2.
[0035] Please refer to the attached Figure 1 , attached Figure 2 and attached Figure 3 , the outer wall of the pen sleeve 1 is provided with anti-skid groove 12 on the left side, the inner wall of the anti-skid groove 12 is fixedly connected with the anti-skid sleeve 13, the outer wall of the anti-skid sleeve 13 is fixedly connected with a plurality of anti-skid strips 14, a plurality of anti-skid strips 14 are equidistantly arranged, the left side of the pen core sheet 8 is fixedly connected with the pen point 15, the left end of the pen point 15 is rotatably connected with the cylinder 16;
[0036] Specifically, the anti-skid groove 12 on the left side of the outer wall of the pen sleeve 1 is used for installing the anti-skid sleeve 13 to provide better grip, the outer wall of the anti-skid sleeve 13 is fixedly connected with a plurality of anti-skid strips 14, which are equidistantly arranged to ensure uniform friction, thereby enhancing the stability during use, the left side of the pen core sheet 8 is fixedly connected with the pen point 15, and the left end of the pen point 15 is rotatably connected with the cylinder 16, which not only ensures the smoothness during writing, but also facilitates the replacement of the pen point 15, prolonging the overall service life of the pen.
[0037] Please refer to the attached Figure 1 and attached Figure 4 , the outer wall of the pen sleeve 1 is fixedly connected with the label 17 at the top, the right side of the rotating column 11 is provided with the air hole 18, the outer wall of the rotating column 11 is fixedly connected with a plurality of rotating blocks 19 on the upper and lower sides, the plurality of rotating blocks 19 are symmetrically arranged, the outer wall of the pen sleeve 1 is fixedly connected with the mounting ring 20 on the right side, and the top of the mounting ring 20 is fixedly connected with the pen clip 21;
[0038] Specifically, a label 17 is fixedly connected to the middle of the top end of the outer wall of the pen sleeve 1, ensuring the identification of product information, and a ventilation hole 18 is formed on the right side of the rotating column 11, which helps air circulation, balances the air pressure in the pen, and prevents children from eating it. The rotating blocks 19 are symmetrically arranged to ensure the balance and beauty of the pen, and a pen clip 21 is connected to the mounting ring 20 on the right side of the outer wall of the pen sleeve 1, which allows the user to easily clip it on clothes and a notebook, increasing the convenience of use.
[0039] Working principle: the conical sleeve 4 is installed on the inner wall of the sharp sleeve 3 through the left side of the pen sleeve 1, so that the sliding column 5 can slide on the conical sleeve 4, and the ring sleeve 7 can slide to the right under the elastic action of the spring 6, thereby pulling the ink cartridge piece 8 to drive the oil pipe 9 to retract the ink cartridge. When using the ink cartridge, only need to twist the rotating column 11 to make it rotate, and cooperate with the screw thread on the right side of the inner wall of the pen sleeve 1 to realize the extrusion operation of the ink cartridge. This structure can realize the silent use of the pen through the screw thread extrusion method, which is convenient to operate, improves the use experience, increases the silent function, and meets the use requirement;
[0040] The elastic sheet 202 is fixed on the right side of the outer wall of the pen sleeve 1 through the fixing block 201, and the clamping strip 203 is fixedly connected to the right end of the elastic sheet 202. When installing and replacing the ink cartridge, only need to bend the clamping strip 203 to insert the clamping block 205 fixed on the outer wall of the anti-dropping sleeve 206 into the clamping groove 204, and the clamping strip 203 can be reset under the action of the elastic sheet 202 to clamp the clamping block 205, so that the anti-dropping sleeve 206 clamps the locking structure. When disassembling, only need to bend the clamping strip 203 to slide out the anti-dropping sleeve 206. This structure can quickly realize the disassembly and installation of the silent pen, and increases the convenience of replacing the ink cartridge, meeting the disassembly and assembly requirement.
[0041] Finally, it should be pointed out that: the above-mentioned only for the preferred embodiments of the present application, and does not limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included in the protection scope of the present application.
Claims
1. A rotary-type silent pen, comprising a pen cap (1), characterized in that: The left end of the pen cap (1) is fixedly connected to a pointed sleeve (3), the inner wall of the pointed sleeve (3) is fixedly connected to a conical sleeve (4), the outer wall of the conical sleeve (4) is slidably connected to multiple sliding pillars (5), the outer wall of the sliding pillar (5) is provided with a spring (6), the left end of the sliding pillar (5) is fixedly connected to a ring sleeve (7), the inner wall of the ring sleeve (7) is provided with a pen chip (8), the right side of the pen chip (8) is fixedly connected to an oil pipe (9), the right side of the inner wall of the pen cap (1) is threadedly connected to a threaded block (10), the right side of the threaded block (10) is fixedly connected to a rotating column (11), the right side of the outer wall of the pen cap (1) is provided with a disassembly and assembly mechanism (2), the disassembly and assembly mechanism (2) is used for quick disassembly and assembly of the silent pen.
2. The rotary silent pen according to claim 1, characterized in that: The disassembly and assembly mechanism (2) includes a fixing block (201). The outer wall of the fixing block (201) is fixedly connected to the front and rear right sides of the outer wall of the pen sleeve (1). An elastic sheet (202) is fixedly connected to the right side of the fixing block (201). A locking strip (203) is fixedly connected to the right end of the elastic sheet (202). Multiple slots (204) are provided on the right edge of the outer wall of the pen sleeve (1). A locking block (205) is slidably connected to the inner wall of the slot (204). An anti-detachment sleeve (206) is fixedly connected to the outer wall of the locking block (205).
3. A rotary silent pen according to claim 1, characterized in that: The pen cap (1) has an anti-slip groove (12) on the left side of its outer wall, and an anti-slip sleeve (13) is fixedly connected to the inner wall of the anti-slip groove (12).
4. A rotary silent pen according to claim 3, characterized in that: The outer wall of the anti-slip sleeve (13) is fixedly connected with a plurality of anti-slip strips (14), and the plurality of anti-slip strips (14) are arranged at equal intervals.
5. A rotary silent pen according to claim 1, characterized in that: The pen chip (8) is fixedly connected to a pen tip (15) on the left side, and a cylinder (16) is rotatably connected to the left end of the pen tip (15).
6. A rotary silent pen according to claim 1, characterized in that: A label (17) is fixedly connected to the top center of the outer wall of the pen cap (1), and a vent hole (18) is provided on the right side of the rotating column (11).
7. A rotary silent pen according to claim 1, characterized in that: Multiple rotating blocks (19) are fixedly connected to the upper and lower sides of the outer wall of the rotating column (11), and the multiple rotating blocks (19) are arranged symmetrically among each other.
8. A rotary silent pen according to claim 1, characterized in that: A mounting ring (20) is fixedly connected to the right side of the outer wall of the pen sleeve (1), and a pen clip (21) is fixedly connected to the top of the mounting ring (20).