Magnetic levitation push neutral pen

By replacing the spring with mutually repelling upper and lower magnets in the ballpoint pen, the problems of high friction and high noise were solved, resulting in smoother pen tip extension and retraction and reduced noise.

CN116811466BActive Publication Date: 2025-12-16DELI GROUP CO LTD
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Patent Information

Application Number
CN202310905625.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-21
Publication Date
2025-12-16
Estimated Expiration
2043-07-21

AI Technical Summary

Technical Problem

Existing push-button ballpoint pens suffer from high friction and noise due to their spring structure, resulting in uneven use and strong impact force.

Method used

The pen retractor is extended by replacing the spring with an upper and lower magnet that repel each other, and the extension and retraction of the pen refill is achieved through the cooperation of gears and wheels, thus eliminating friction and noise.

Benefits of technology

It reduces noise, improves smoothness and feel, and reduces impact force between components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a magnetic suspension push neutral pen, which comprises a tube body, a pen core, a gear, a rotating wheel, an upper magnet and a lower magnet with mutual repulsion, wherein the gear and the rotating wheel are sleeved on the tube body, the inner side of the tube body is provided with a guide rail, the guide rail is in sliding connection with the gear, the gear is used for abutting against the rotating wheel to drive the rotating wheel to move along the axial direction to a first point position and a second point position, the upper magnet is located below the rotating wheel and moves up and down along the axial direction following the rotating wheel under the action of the mutual repulsion, and the upper end of the pen core is connected with the rotating wheel and follows the rotating wheel to axially stretch and contract so that the pen tip of the pen core is located on the inner side of the tube body or extends out. The structure of the scheme does not need to use a spring and can effectively reduce noise.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of push neutral pen, in particular to a magnetic suspension type push neutral pen. BACKGROUND

[0002] The push neutral pen or called the lift neutral pen is a kind of writing tool frequently used, which comprises a tube (pen barrel), a pen core, a gear, a rotating wheel and a spring and other components, the spring is arranged at the lower end of the pen core, one end of the spring is abutted against the protrusion of the pen core, and the other end is abutted against the inner shell of the lower end of the tube, the gear and the rotating wheel are associated with each other, the rotating wheel is driven to rotate by the gear, the rotating wheel pushes the pen core, and the pen tip of the pen core is extended or retracted into the pen barrel under the action of the spring, so as to realize the extension and retraction of the pen core, the pen tip is extended during use, and the pen tip is retracted to avoid ink pollution during non-use; the push neutral pen with such structure can realize the extension and retraction of the pen tip relative to the pen barrel, but due to the arrangement of the spring, the spring, the pen core and the tube will rub against each other when the pen is pressed, resulting in poor pressing feeling, and due to the strong restoring force of the spring, the impact force between the rotating wheel and the related components will be increased when the rotating wheel drives the pen tip to be in different states, so that a large noise will be generated. SUMMARY

[0003] The present application provides a magnetic suspension type push neutral pen which does not need to use a spring and can effectively reduce noise.

[0004] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows: a magnetic suspension type push neutral pen, the structure of the pen comprises a tube, a pen core, a gear, a rotating wheel, an upper magnet and a lower magnet with mutual repulsive force; the gear and the rotating wheel are sleeved on the tube, the inner side of the tube is provided with a guide rail, the guide rail is in sliding connection with the gear, the gear is used for abutting against the rotating wheel to drive the rotating wheel to be in a first point position and a second point position along the axial direction; the upper magnet is located below the rotating wheel and runs up and down along the axial direction under the action of the mutual repulsive force; the upper end of the pen core is connected with the rotating wheel and follows the rotating wheel to axially extend and retract, so that the pen tip of the pen core is located in the inner side of the tube or is extended out.

[0005] With the above structure, the traditional spring structure is removed, and the function of the spring is realized by using two upper magnets and lower magnets that can have repulsive force to each other. When the gear is pressed, the gear runs axially downward in the guide rail to drive the runner downward and rotate circumferentially, so as to be at the first point. At this time, the pen nib extends out of the lower end of the tube and can be used for writing. The gear is pressed again, the runner rotates circumferentially and is separated from the assembly at the first point, and under the action of the repulsive force of the two magnets, the runner slides into the guide rail at the second point. At this time, the lead follows the runner and the pen nib is located in the tube. The above structure of the application avoids the use of traditional springs, thereby eliminating the friction between the spring and the lead and the inner wall of the tube, reducing noise, and the upper magnet and the lower magnet have repulsive force to each other, but do not contact each other, and the repulsive force will be more moderate as the distance between the upper and lower magnets increases. Therefore, the impact force between the runner and the abutting assembly during driving the runner to the first point and the second point is more gentle, and the generation of noise can be further reduced.

[0006] Further, the inner wall of the tube is provided with a guide rail, and the gear is in sliding fit with the guide rail on the inner wall. With this structure, the guide rail is directly provided on the inner wall of the tube, which is convenient for integrated molding and has a simpler structure.

[0007] Further, the tube is sleeved with a fixing seat, the inner wall of the fixing seat is provided with a guide rail, and the gear is in sliding fit with the guide rail on the inner wall of the fixing seat. With this structure, the machining of the guide rail is facilitated, and if the guide rail has defects, the fixing seat can be directly replaced.

[0008] Further, the fixing seat and the tube are in interference fit or bonded with each other. With this structure, the firmness of the connection between the fixing seat and the tube is ensured, and the fixing seat is prevented from being separated from the tube during pressing to affect the work.

[0009] Further, the runner is provided with a connecting piece, one end of the connecting piece is connected with the runner, and the other end is connected with the lead. With this structure, the connection between the lead and the runner can be realized, and the lead can be driven to run together with the runner during the upward and downward running of the runner along the axial direction, so that the lead is in the extended or retracted state.

[0010] Further, the runner and the connecting piece are integrally provided, that is, they can be an integral whole, so that additional assembly is not needed, and the upper end of the lead can be inserted into the connecting piece.

[0011] Further, the rotating wheel and the connecting piece are in split type, the upper end of the connecting piece is connected with the rotating wheel and can rotate circumferentially, the lower end is connected with the refill and can rotate circumferentially; by using the structure, the connecting piece can play a role of transition connection, so that the refill can run axially along with the rotating wheel to realize the extension or retraction of the pen point; and the connecting piece and the rotating wheel or the refill can rotate circumferentially relative to each other, so that the connecting piece can not rotate along with the rotating wheel during the rotation of the rotating wheel, the load of the rotating wheel is reduced, and the refill is given a certain axial movement space, but the refill will not be extended by mistake.

[0012] Further, the outer circumferential surface of the connecting piece is provided with an annular protrusion, the outer diameter of the annular protrusion is not less than the inner diameter of the rotating wheel and the refill connected therewith; the annular protrusion can improve the firmness of the connection between the two ends of the connecting piece and the rotating wheel and the refill, and prevent the connecting piece or the refill from being loosened and causing the refill to be extended by mistake.

[0013] Further, the rotating wheel and the connecting piece are hollow along the axial direction; by using the structure, the balance of the internal and external pressure of the refill can be ensured, and the refill can be written more smoothly.

[0014] Further, the upper magnet is hollow and is sleeved on the outer side of the connecting piece; the structure can save the space occupied by the magnet, and does not affect the extension and retraction adjustment of the refill.

[0015] Further, the lower magnet is arranged below the upper magnet along the axial direction and does not contact the upper magnet; by using the structure, the repulsion between the two magnets can be effectively ensured, and the two magnets do not contact each other to avoid affecting the force.

[0016] Further, the lower magnet is hollow, and the refill passes through the hollow; the tube body is composed of an upper pen barrel and a lower pen barrel, the inner wall of the upper pen barrel is provided with a stop ring, and the lower end surface of the lower magnet abuts against the stop ring; by using the structure, the lower magnet can be fixed at a suitable position of the upper pen barrel, the operation of the refill is not affected, and the lower magnet and the upper magnet can interact with each other; and under the repulsion of the upper magnet, the lower magnet can abut against the stop ring without displacement.

[0017] Further, the upper magnet and the lower magnet are of the same size; by using the structure, the balance of the magnetic repulsion between the two magnets is ensured, and the refill can be extended and retracted more stably. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure schematic diagram of the magnetic suspension type push neutral pen.

[0019] Figure 2 The structure schematic diagram of the axial side sectional view of the magnetic suspension type push neutral pen (first position, pen point extended).

[0020] Figure 3 The structure diagram of the magnetic suspension type push neutral pen shaft side cross-sectional view (second position, pen tip retraction) is shown in the figure.

[0021] Figure 4 The structure diagram of the magnetic suspension type push neutral pen assembly view is shown in the figure.

[0022] Figure 5 The structure diagram of the gear is shown in the figure.

[0023] Figure 6 The structure diagram of the fixed seat is shown in the figure.

[0024] Figure 7 The structure diagram of the fixed seat cross-sectional view is shown in the figure.

[0025] Figure 8 The structure diagram of the connecting piece is shown in the figure.

[0026] Figure 9 The structure diagram of the rotating wheel is shown in the figure.

[0027] As shown in the figure: 1. Tube body, 101. Upper pen barrel, 102. Lower pen barrel, 103. Retaining ring, 2. Pen core, 201. Pen tip, 3. Gear, 301. Slider, 302. Gear tooth, 4. Rotating wheel, 401. Projection, 5. Upper magnet, 6. Lower magnet, 7. Guide rail, 701. Flange, 8. Fixed seat, 9. Connecting piece, 901. Annular convex ring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the embodiments and the drawings. Obviously, the described embodiments are only the preferred embodiments, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application;

[0029] Furthermore, it should be noted that when a component is described as being "fixed to" another component, it can be directly on the other component or it may be fixed by another intermediate component. When a component is described as being "connected to" another component, it can be directly connected to the other component or it may be fixed by another intermediate component. When a component is described as being "set on" another component, it can be set directly on the other component or it may be fixed by another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only; the descriptions such as "upper," "lower," etc., in this application refer to the positional relationship of the components in the axial direction with the pen tip pointing downwards during normal pen use. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] As attached Figures 1-9 As shown, this application discloses a magnetically levitated, clickable gel pen, the structure of which includes a tube 1 (as shown in the attached diagram). Figures 1-4 As shown, to facilitate the assembly and disassembly of each component, this application configures the tube body 1 as an upper pen barrel 101 and a lower pen barrel 102 that can be threadedly connected (the two are threadedly connected to form a complete tube body 1), a pen refill 2, a gear 3, a rotating wheel 4, and an upper magnet 5 and a lower magnet 6 with mutual repulsive force; the gear 3 and the rotating wheel 4 are sleeved inside the tube body 1 (the gear 3 and the rotating wheel 4 are sleeved at the upper end of the tube body, the gear is first sleeved on the guide rail of the tube body, and the upper part of the rotating wheel is sleeved inside the gear), and a guide rail 7 is provided on the inner side of the tube body 1, the guide rail 7 being slidably connected to the gear 3 (i.e., as shown in the attached figure). Figures 4-7 As shown, a slider 301 is provided on the outer circumferential surface of the gear 3. The slider 301 can slide within the guide rail 7 and slide back and forth along the axial direction of the guide rail 7. The gear 3 is used to abut against the rotating wheel 4 to drive the rotating wheel 4 to the first position along the axial direction (i.e., the position of the rotating wheel when the tip 201 of the pen refill 2 extends out of the lower end of the tube body, see attached figure for details). Figure 2 The second point (the position of the rotating wheel 4 when the tip 201 of the pen retracts into the tube, see attached) is shown in the appendix. Figure 3The upper magnet 5 is located below the rotating wheel 4 (specifically, the upper magnet and the rotating wheel can abut against each other through the repulsive force between the upper magnet and the lower magnet, or the upper magnet can be glued to the lower end face of the rotating wheel; the two can be directly connected or indirectly linked), and moves up and down along the axis of the rotating wheel 4 under the action of mutual repulsive force (the rotating wheel moves up along the axis by the magnetic repulsive force of the upper magnet); the upper end of the pen refill 2 is connected to the rotating wheel 4 (the two can be directly connected or connected in a transitional manner) and moves axially with the rotating wheel 4 so that its pen tip 201 is inside the tube body 1 or extends out.

[0031] By employing the above structure, this application eliminates the traditional spring structure and uses two repulsive upper and lower magnets to achieve the function of a spring. When the gear is pressed, the gear moves axially downward within the guide rail, driving the wheel downward and rotating circumferentially, thus reaching the first position. At this point, the pen tip extends out of the lower end of the tube for writing. Pressing the gear again causes the wheel to rotate circumferentially and disengage from the component at the first position. Under the repulsive force of the two magnets, the wheel slides into the guide rail with the gear, reaching the second position. At this point, the pen tip retracts with the wheel and is located inside the tube. This structure avoids the use of a traditional spring, thus eliminating friction between the spring, the pen tip, and the tube, reducing noise. Although the upper and lower magnets repel each other, they do not contact each other, and the repulsive force becomes more moderate as the distance between the upper and lower magnets increases. Therefore, during the process of driving the wheel to the first and second positions, the impact force between the wheel and the components that come into contact is gentler, further reducing noise generation.

[0032] As an example, the inner wall of the tube 1 described in this application is provided with a guide rail 7 (that is, the guide rail is directly provided on the inner wall of the tube, without the need for additional installation components, and the guide rail structure can be integrally molded during the tube molding process). The gear 3 slides in cooperation with the guide rail 7 on the inner wall of the tube 1. With this structure, the guide rail is directly provided on the inner wall of the tube, which facilitates integral molding and simplifies the structure.

[0033] As an example, see attached Figures 2-4 As shown in Figures 6-7, a fixed seat 8 is fitted onto the tube body 1 described in this application. A guide rail 7 is provided on the inner wall of the fixed seat 8. The gear 3 slides in cooperation with the guide rail 7 on the inner wall of the fixed seat 8. That is, the guide rail is machined on the inner wall of the fixed seat, and then the fixed seat is assembled on the upper part of the tube body. With this structure, the machining of the guide rail can be convenient, and if the guide rail is defective, the fixed seat can be directly replaced. When the structure of setting the guide rail inside the fixed seat is adopted, the tube body of this application can adopt an integral structure, and all components are assembled from the upper end of the tube body.

[0034] As an example, the fixed seat 8 described in the application is in interference fit or mutual adhesion with the pipe body 1 (i.e. the two can be adhesively bonded); with this structure, the firmness of the connection between the fixed seat and the pipe body is ensured, and the fixed seat is prevented from being detached from the pipe body during pressing, thereby affecting the work.

[0035] As shown in Figures 2-4 , 8, the rotating wheel 4 described in the application is provided with a connecting piece 9, one end of which is connected with the rotating wheel 4 and the other end of which is connected with the refill 2; with this structure, the connection between the refill and the rotating wheel can be achieved, and the refill can be driven to run together with the rotating wheel during the axial up-and-down operation of the rotating wheel, so that the refill is in the extended or retracted state.

[0036] As an example, the rotating wheel 4 described in the application is integrally provided with the connecting piece 9, i.e. the two can be one whole, and no additional assembly is needed between the two, and the upper end of the refill can be inserted into the connecting piece.

[0037] As shown in Figures 2-4 , 8, the rotating wheel 4 described in the application is integrally provided with the connecting piece 9, i.e. the two can be one whole, and no additional assembly is needed between the two, and the upper end of the refill can be inserted into the connecting piece.

[0038] As an example, as shown in Figures 2-4 , 8, the outer circumferential surface of the connecting piece 9 described in the application is provided with an annular protrusion 901, and the outer diameter of the annular protrusion 901 is not less than the inner diameter of the rotating wheel 4 and the refill 2 connected therewith; the provision of the annular protrusion can improve the firmness of the connection between the two ends of the connecting piece and the rotating wheel and the refill, and prevent the connecting piece or the refill from being loosened and causing the refill to be extended by mistake.

[0039] As shown in the accompanying drawings, Figures 2-4 , the rotating wheel 4 and the connecting piece 9 described in the application are hollow along the axial direction (i.e. both are hollow structures connected along the axial direction), and with this structure, the balance of the internal and external pressure of the refill can be ensured, and the refill can be written more smoothly.

[0040] As shown in the accompanying drawings, Figures 2-4As shown, the upper magnet 5 is hollow and is arranged outside the connecting member 9 (the inner diameter of the hollow upper magnet is larger than the outer diameter of the connecting member to prevent the two from contacting and rubbing to affect the extension and retraction of the refill); this structure can save the space occupied by the magnet and does not affect the extension and retraction of the refill; specifically, the magnet is in a cylindrical hollow structure.

[0041] As shown in the accompanying drawings, Figures 2-4 As shown, the lower magnet 6 is arranged below the upper magnet 5 in the axial direction and does not contact the upper magnet 5; with this structure, the repulsive force between the two can be effectively ensured, and the two do not contact to avoid affecting the force.

[0042] As shown in the accompanying drawings, Figures 2-4 As shown, the lower magnet 6 is hollow (specifically, the magnet is in a cylindrical hollow structure), and the refill 2 passes through the hollow; the tube body 1 is composed of an upper pen barrel 101 and a lower pen barrel 102, the inner wall of the upper pen barrel 101 is provided with a stop ring 103, and the lower end surface of the lower magnet 6 abuts against the stop ring 103; with the above structure, the lower magnet can be fixed at a suitable position of the tube body without affecting the operation of the refill, and can also interact with the upper magnet to drive the rotating wheel to different positions; and under the mutual repulsion of the upper magnet, the lower magnet can abut against the stop ring without displacement.

[0043] As an example, the upper magnet 5 and the lower magnet 6 have the same size (i.e., the specifications of the two are comparable); with this structure, the balance of the magnetic repulsion between the two is ensured, and the refill is more stable in extension and retraction.

[0044] The structure of the ballpoint pen of the present application replaces the traditional spring structure with upper and lower magnets having mutual repulsion, and because the two are within an effective distance having mutual repulsion, the upper magnet can follow the rotating wheel to run axially up and down to drive the rotating wheel to run axially and circumferentially, and the lower magnet can be abutted against the stop ring arranged on the inner wall of the upper tube under the repulsion; in addition, when the connection between the refill and the rotating wheel is achieved by a connecting member, the upper end of the connecting member can be in interference fit with the rotating wheel, or can be integrally arranged or bonded, which can all be adapted to the present application; the outer diameters of the upper and lower magnets of the present application are adapted to the inner diameter of the tube body, and do not affect the extension and retraction of the refill; the structures of the gear, guide rail and rotating wheel of the present application can adopt the pressing structure of the existing spring type ballpoint pen or the lifting ballpoint pen, and the most important point of the present application is the arrangement of the upper and lower magnets.

[0045] The specific working principle and process of the magnetic levitation clickable ballpoint pen of this application are as follows: Taking the structure in which the guide rail is set on the fixed base as an example, the upper end of the fixed base is provided with a retaining ring with an outer diameter larger than the outer diameter of the upper end of the tube body. Thus, after the fixed base is installed and fitted into the tube body, the retaining ring achieves the relative positional relationship between the fixed base and the tube body, preventing the fixed base from completely sinking into the tube body and making disassembly inconvenient. As an example, the gears of this application are shown in the attached diagram. Figures 1-5 The upper part is an axially extending pressing part for easy pressing operation. A pen cap can also be connected to the gear, and pressing the pen cap drives the gear to slide axially within the guide rail. First, the gear is inserted from the lower end of the fixed base. The slider of the gear slides within the guide rail, and the upper end of the guide rail has a stop to prevent the gear from disengaging from the fixed base. Then, the rotating wheel is fitted into the gear. One end of the connector is inserted into the rotating wheel, and the other end is connected to the pen refill. The lower magnet is placed on the retaining ring on the inner wall of the tube, and the upper magnet is fitted outside the connector. Finally, the fixed base, gear, rotating wheel, connector, upper magnet, and pen refill are assembled into the tube. Within the body, the tube of this application can be divided into an upper pen barrel and a lower pen barrel. After the above structure is assembled, the lower pen barrel is threadedly connected to the upper pen barrel to form the magnetic levitation push-button gel pen of this application. The upper and lower magnets always have a repulsive force against each other, that is, the like poles of the upper and lower magnets are brought close together to generate a repulsive force between them. The gear and the rotating wheel of this application can be the conventional push-button engagement structure of a push-button gel pen (or a flip-type gel pen), that is, the lower end face of the gear is provided with teeth, the outer peripheral surface is provided with a slider, the slider slides in the guide rail and can move up and down along the guide rail axis, and the rotating wheel is provided with protrusions (as shown in the attached figure). Figure 4 , 9 As shown, the protrusion 401 of the rotating wheel is provided on the outer peripheral wall of the rotating wheel, and has an axially extending columnar structure and an inclined surface at the upper end of the columnar structure. The lower end face of the component where the guide rail is located is provided with a flange for abutting against the protrusion of the rotating wheel (as shown in the attached figure). Figures 6-7 As shown, the lower end flange 701 of the extended guide rail is inclined with helical teeth; when the pen retracts into the lower pen barrel, the protrusion of the rotating wheel and the gear slide into the guide rail together. At this time, the protrusion of the rotating wheel, under the constraint of the guide rail, interacts with the gear teeth (as shown in the attached figure). Figure 5 As shown, the gear teeth 302 are arranged circumferentially, and the gear abuts at half of its position. At this time, the rotating wheel is at the second point, that is, located at the front end of the guide rail and abutting half of the gear teeth; see the attached document for details. Figure 3As shown, at this time the pen tip is retracted in the tube, the upper and lower magnets are at a relatively far distance, under the magnetic repulsion the protrusion of the rotating wheel slides into the guide rail and the front end of the protrusion abuts against half of the position of the gear teeth; press the gear to drive the rotating wheel to run axially downward, when sliding to the free state of the rotating wheel, i.e. out of the restriction of the guide rail, the protrusion of the rotating wheel will run to the root of the gear teeth under the repulsion of the upper and lower magnets, in this process the rotating wheel simultaneously rotates a small angle in the circumferential direction along the inclined surface of the gear teeth (the rotating process of the rotating wheel may drive the pen core or the upper magnet to rotate in the circumferential direction); then release the gear, under the magnetic repulsion the rotating wheel runs axially upward and contacts the flange of the component where the guide rail is located, continues to rotate in the circumferential direction under the guidance of the flange until the protrusion is located at the root position of the flange, at this time the rotating wheel no longer rotates in the circumferential direction and also no longer moves axially, because the flange is closer to the pen tip, therefore the rotating wheel at this time will drive the pen core to move axially downward and the pen core extends out of the lower barrel, the rotating wheel is at the first point (the upper end of the protrusion of the rotating wheel abuts against the root of the flange to make the rotating wheel at the first point), see FIG. 2. Figure 2 As shown, at this time the pen tip extends for writing, the upper and lower magnets are at a relatively close distance, the repulsion is greater and the front end of the protrusion of the rotating wheel abuts against the root position of the flange to maintain the stability of the extended pen tip for writing; therefore, under the mutual repulsion of the upper and lower magnets, the pressing operation of the gear can realize the alternation of the above-mentioned two point positions of the rotating wheel, thereby controlling the extension and retraction of the pen tip; the structure of the present application, in which the gear and the rotating wheel and the guide rail can be the same as the structure of the existing push neutral pen or the lift neutral pen, the main invention point lies in that two magnets are coaxial and repel each other inside the tube (the upper barrel) to replace the traditional spring structure, the repulsion of the upper and lower magnets replaces the elastic force of the traditional spring contraction, under the repulsion the upper magnet always has a pushing force upward on the rotating wheel, under the pressing of the gear the rotating wheel realizes the alternation of the first point position and the second point position, thereby pushing the pen tip to extend or retract; the traditional original spring type push pen has mutual friction between the spring, the pen core and the lower barrel when being pressed, which leads to poor pressing feeling and increases noise; and the structure of the present application which replaces the spring with the magnet can make the core extension more smooth and also effectively reduce part of the noise.

Claims

1. A magnetically levitated, press-operated gel pen, characterized in that: The pen's structure includes a tube (1), a refill (2), a gear (3), a rotating wheel (4), an upper magnet (5), and a lower magnet (6) with mutual repulsion. The gear (3) and the rotating wheel (4) are fitted onto the tube (1). A guide rail (7) is provided on the inner side of the tube (1). The guide rail (7) is slidably connected to the gear (3). The gear (3) is used to abut against the rotating wheel (4) to drive the rotating wheel (4) to be axially positioned at a first point and a second point. The upper magnet (5)... 5) Located below the rotating wheel (4) and moving up and down along the axis of the rotating wheel (4) under the action of mutual repulsion; the upper end of the pen tip (2) is connected to the rotating wheel (4) and moves along the axis of the rotating wheel (4) so ​​that its pen tip (201) is inside the tube (1) or extends out; a fixed seat (8) is sleeved on the tube (1), and a guide rail (7) is provided on the inner wall of the fixed seat (8), and the gear (3) slides with the guide rail (7) on the inner wall of the fixed seat (8).

2. The magnetically levitated, press-type gel pen according to claim 1, characterized in that: The fixing seat (8) and the tube body (1) are either interference-fitted or bonded together.

3. The magnetically levitated, press-type gel pen according to claim 1, characterized in that: The rotating wheel (4) is provided with a connector (9), one end of which is connected to the rotating wheel (4) and the other end is connected to the pen refill (2).

4. The magnetically levitated, clickable gel pen according to claim 3, characterized in that: The rotating wheel (4) and the connecting piece (9) are integrated into one piece.

5. The magnetically levitated, clickable gel pen according to claim 4, characterized in that: The rotating wheel (4) and the connecting piece (9) are separate components. The upper end of the connecting piece (9) is connected to the rotating wheel (4) and can rotate relative to it in the circumferential direction, and the lower end is connected to the pen refill (2) and can rotate relative to it in the circumferential direction.

6. The magnetically levitated, clickable gel pen according to claim 5, characterized in that: The connector (9) is provided with an annular protrusion (901) on its outer peripheral surface. The outer diameter of the annular protrusion (901) is not less than the inner diameter of the rotating wheel (4) and the pen refill (2) connected to it.

7. The magnetically levitated, press-type gel pen according to claim 4, characterized in that: The aforementioned wheel (4) and connector (9) are hollow along the axial direction.

8. The magnetically levitated, clickable gel pen according to claim 4, characterized in that: The upper magnet (5) is hollow and is sleeved on the outside of the connector (9).

9. The magnetically levitated, clickable gel pen according to claim 1, characterized in that: The lower magnet (6) is arranged axially below the upper magnet (5) and does not contact the upper magnet (5).

10. The magnetically levitated, press-type gel pen according to claim 1, characterized in that: The lower magnet (6) is hollow, and the pen refill (2) passes through the hollow. The tube (1) is composed of an upper pen barrel (101) and a lower pen barrel (102). A retaining ring (103) is provided on the inner wall of the upper pen barrel (101), and the lower end face of the lower magnet (6) abuts against the retaining ring (103).

11. The magnetically levitated, clickable gel pen according to claim 1, characterized in that: The upper magnet (5) and the lower magnet (6) are the same size.

Citation Information

Patent Citations

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