Writing pen
By setting elastic parts in the pen, the problem of the pen head damaged when the pen is dropped is solved, and the head of the pen core is protected after it is dropped and writing performance is maintained.
Patent Information
- Application Number
- CN202421283726.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-06-05
AI Technical Summary
When the writing pen falls, the pen tip is prone to damage because existing protection methods cannot protect the pen tip in real time during use.
An elastic member is set between the pen holder and the refill core of the pen. When the pen falls, the refill core moves inward to compress the elastic member to convert impact energy and avoid direct transmission to the pen tip, thereby reducing damage.
Effectively avoid or reduce the impact force on the head of the refill, ensuring that the refill can still maintain its original shape and writing performance after it falls, and avoid damage.
Smart Images
Figure CN222921295U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of writing pens, and particularly to a writing pen. Background Art
[0002] Writing pens are essential tools for modern writing. However, when a writing pen falls to the ground, its tip is very likely to be damaged. The conventional protection method is to protect the tip with a pen cap. However, this protection method requires covering the pen cap every time after writing, and it cannot protect the tip of the writing pen during the use of the writing pen. Utility Model Content
[0003] The purpose of this application is to provide a writing pen.
[0004] According to the first aspect of the embodiments of this application, a writing pen is provided. The writing pen includes:
[0005] A pen barrel;
[0006] A refill, the refill includes a rod portion and a head portion that are connected to each other. The rod portion is disposed inside the pen barrel, and the head portion has a first position inside the pen barrel and a second position outside the pen barrel;
[0007] An elastic member, the elastic member is disposed between the rod portion and the pen barrel;
[0008] Wherein, when the head portion is in the second position, the head portion can be pushed back to the first position by an external force.
[0009] In one embodiment, the writing pen further includes a conversion device. The conversion device is movably disposed inside the pen barrel along the length direction of the pen barrel. One end of the conversion device abuts against the rod portion, and the other end of the conversion device abuts against the elastic member. The end of the elastic member facing away from the conversion device is connected to the pen barrel;
[0010] The conversion device can be switched between a first state and a second state. When the conversion device is in the first state, the head portion is in the first position. When the conversion device is in the second state, the head portion is in the second position.
[0011] In one embodiment, the conversion device includes an inner rod, a runner, and a push rod. The inner rod includes a first groove portion and a second groove portion that are annularly arranged, and the depth of the first groove portion along the length direction is greater than the depth of the second groove portion along the length direction; the runner abuts against the inner rod, and the runner can be switched between the first groove portion and the second groove portion; the push rod passes through the inner rod, and the push rod is cooperatively arranged with the runner to push the runner to rotate, so as to switch between the first groove portion and the second groove portion;
[0012] The inner rod is movably arranged along the length direction of the pen barrel. The elastic member is in contact with the inner rod, and the refill is in contact with the rotating wheel.
[0013] In one embodiment, the writing pen further includes a positioning portion. The positioning portion is arranged at the end of the conversion device away from the refill, and the positioning portion is fixed inside the pen barrel. The elastic member is arranged between the positioning portion and the conversion device.
[0014] In one embodiment, the pen barrel includes a core outlet end. The head enters and exits the pen barrel from the core outlet end. The writing pen includes a first limiting portion and a second limiting portion. The first limiting portion is arranged on the conversion device, and the second limiting portion is arranged inside the pen barrel. The first limiting portion and the second limiting portion cooperate to limit the movement of the conversion device towards the core outlet end.
[0015] In one embodiment, the writing pen further includes a conversion device. The conversion device is fixedly arranged inside the pen barrel. One end of the elastic member is in contact with the rod portion, and the other end of the elastic member is in contact with the conversion device.
[0016] The conversion device can be converted between a first state and a second state. When the conversion device is in the first state, the head is located at a first position. When the conversion device is in the second state, the head is located at a second position.
[0017] In one embodiment, the conversion device includes an inner rod, a rotating wheel, and a push rod. The inner rod includes a first groove portion and a second groove portion arranged in a ring shape, and the depth of the first groove portion is greater than the depth of the second groove portion. The rotating wheel is in contact with the inner rod, and the rotating wheel can be switched between the first groove portion and the second groove portion. The push rod passes through the inner rod, and the push rod is cooperatively arranged with the rotating wheel to push the rotating wheel to rotate, so as to switch between the first groove portion and the second groove portion.
[0018] The elastic member is in contact with the rotating wheel.
[0019] In one embodiment, the inner rod extends towards the refill to form a receiving space. The elastic member is arranged at the end close to the rotating wheel inside the receiving space.
[0020] In one embodiment, along the length direction of the writing pen, the length of the receiving space is greater than or equal to 1 mm and less than or equal to 20 mm.
[0021] In one embodiment, the elastic force of the elastic member is greater than or equal to 300 N and less than or equal to 4000 N.
[0022] In one embodiment, the elastic force of the elastic member is greater than or equal to 500 N and less than or equal to 700 N.
[0023] The beneficial technical effects brought by the technical solution provided by the embodiments of the present application are:
[0024] In the present application, an elastic member is provided between the pen barrel and the pen core of the writing pen. When the writing pen accidentally falls from the hand or the desktop, the head of the pen core touches the ground first. At this time, the pen core moves into the pen barrel, thereby compressing the elastic member. This process quickly converts most of the impact energy into elastic potential energy, rather than directly transmitting it to the head of the pen core, thereby avoiding or greatly reducing the impact force received by the head of the pen core. Once the impact ends, the elastic member starts to rebound, pushing the head of the pen core back to the initial position, and almost no trace is left during the whole process. In this way, even after dropping, the head of the pen core can maintain its original shape and writing performance, avoiding damage. Description of the Drawings
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0026] Figure 1 It is a schematic structural diagram of the writing pen in the second position shown according to an embodiment of the present application.
[0027] Figure 2 It is a schematic structural diagram of the writing pen in the first position shown according to an embodiment of the present application.
[0028] Figure 3 It is a schematic internal structural diagram of the writing pen in the second position shown according to an embodiment of the present application.
[0029] Figure 4 It is a schematic internal structural diagram of the writing pen in the first position shown according to an embodiment of the present application.
[0030] Figure 5 It is a schematic cooperation diagram of the elastic member, the conversion device and the positioning portion shown according to an embodiment of the present application.
[0031] Figure 6 It is a schematic cross-sectional view of the elastic member, the conversion device and the positioning portion shown according to an embodiment of the present application.
[0032] Figure 7 It is a schematic structural diagram of the rotating wheel and the push rod shown according to an embodiment of the present application.
[0033] Figure 8It is a cross-sectional view of the inner rod shown according to an embodiment of the present application.
[0034] Figure 9 It is a cross-sectional view of the inner rod shown from another angle according to an embodiment of the present application.
[0035] Figure 10 It is a transverse cross-sectional view of the writing pen shown according to an embodiment of the present application.
[0036] Figure 11 It is a schematic diagram of the internal structure of the writing pen when it is in the second position shown according to an embodiment of the present application.
[0037] Figure 12 It is a schematic diagram of the internal structure of the writing pen when it is in the first position shown according to an embodiment of the present application.
[0038] Figure 13 It is a schematic cross-sectional view of the elastic member and the conversion device when they are in the second position shown according to an embodiment of the present application.
[0039] Figure 14 It is a schematic cross-sectional view of the elastic member and the conversion device when they are in the first position shown according to an embodiment of the present application.
[0040] Explanation of reference numerals:
[0041] Writing pen 10
[0042] Pen barrel 100
[0043] Core outlet end 110
[0044] Refill 200
[0045] Rod portion 210
[0046] Head portion 220
[0047] Elastic member 300
[0048] Conversion device 400
[0049] Inner rod 410
[0050] First groove portion 411
[0051] Second groove portion 412
[0052] Accommodating space 413
[0053] Rotating wheel 420
[0054] Push rod 430
[0055] Positioning portion 500
[0056] First limiting portion 610
[0057] The second limiting part 620
[0058] The first position A1
[0059] The second position A2 Detailed implementation manners
[0060] Here, the exemplary embodiments will be described in detail, and the examples are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all the implementation manners consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. The use of the words "a" or "an" and the like in the specification and claims of the present application does not also represent a limitation in quantity, but means that there is at least one. "Plurality" means two or more. Words such as "including" or "comprising" and the like are intended to indicate that the elements or objects appearing before "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Connection" or "coupling" and the like are not limited to direct connection, and may also include indirect connection. Words such as "upper" and / or "lower" and the like are only for convenience of description, and are not limited to one position or a spatial orientation. The singular forms of "a" and "the" used in the specification and claims of the present application are also intended to include the plural forms, unless the context clearly indicates otherwise.
[0061] When the writing pen falls on a hard ground, the pen tip is likely to be damaged. This is mainly because the pen tip part is relatively fragile. Especially for many modern ballpoint pens and gel pens, their nib designs are relatively delicate, with a small ball or a fine ink outlet structure inside. When the pen falls from a certain height, the impact force may cause the pen tip to deform, break, or block the ink delivery system, thus affecting the writing fluency or even making it completely unusable.
[0062] The present application provides a writing pen 10. Referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 as shown, the writing pen 10 includes: a pen barrel 100, a pen core 200, and an elastic member 300. The pen core 200 includes a rod portion 210 and a head portion 220 that are connected to each other. The rod portion 210 is disposed inside the pen barrel 100, and the head portion 220 has a first position A1 inside the pen barrel 100 and a second position A2 outside the pen barrel 100; the elastic member 300 is disposed between the rod portion 210 and the pen barrel 100; wherein, when the head portion 220 is in the second position A2, the head portion 220 can be pushed back to the first position A1 by an external force.
[0063] It should be noted that when the head 220 is pushed back from the second position A2 to the first position A1 by an external force, the elastic member 300 is compressed, and the elastic potential energy of the elastic member 300 is the first potential energy; when the head 220 is located at the second position A2, the elastic potential energy of the elastic member 300 is the second potential energy, and the first potential energy is greater than the second potential energy. The elastic member 300 can be a spring, a spring sheet, a rubber or other components, as long as the elastic component that can push the head 220 back to the first position A1 by an external force is within the protection scope of this application. In addition, the elastic force of the elastic member 300 can be set to be greater than or equal to 300N and less than or equal to 4000N. Preferably, the elastic force of the elastic member 300 is set to be greater than or equal to 500N and less than or equal to 700N. For example, the elastic force of the elastic member 300 can be 300N, 500N, 1000N, 1500N, 2000N, 2500N, 3000N. Within this range, the elastic member 300 can shrink back into the pen body 100 when subjected to external impact while ensuring writing.
[0064] When the writing pen 10 accidentally falls from the hand or the table, the head 220 touches the ground first. At this time, the pen core 200 moves into the pen body 100, thereby compressing the elastic member 300. This process quickly converts most of the impact energy into elastic potential energy instead of directly transferring it to the head 220, thereby avoiding or greatly reducing the impact force on the head 220. Once the impact is over, the elastic member 300 begins to rebound, pushing the head 220 back to the initial position, and the whole process leaves almost no trace. In this way, even after falling, the head 220 can maintain its original shape and writing performance, avoiding damage.
[0065] In this embodiment, reference Figures 3 to 10 As shown, the writing pen 10 also includes a conversion device 400, which is movably arranged in the pen body 100 along the length direction of the pen body 100, one end of the conversion device 400 is arranged to conflict with the rod part 210, and the other end of the conversion device 400 is arranged to conflict with the elastic member 300, and the end of the elastic member 300 facing away from the conversion device 400 is connected to the pen body 100; the conversion device 400 can be converted between a first state and a second state, when the conversion device 400 is in the first state, the head 220 is located at the first position A1, and when the conversion device 400 is in the second state, the head 220 is located at the second position A2.
[0066] When the conversion device 400 is in the second state and the head 220 is located at the second position A2, the head 220 of the writing pen 10 contacts the ground. Since one end of the conversion device 400 is arranged to abut against the rod 210 and the other end of the conversion device 400 is arranged to abut against the elastic member 300, the conversion device 400 can compress the elastic member 300 to convert most of the impact energy into elastic potential energy, thereby allowing the head 220 to enter the pen shaft 100 and avoid damage.
[0067] In this embodiment, reference Figure 1 , Figure 2 , Figure 5 as well as Figure 10 As shown, the pen holder 100 includes a core outlet end 110, and the head 220 enters and exits the pen holder 100 from the core outlet end 110. The writing pen 10 includes a first limiting portion 610 and a second limiting portion 620. The first limiting portion 610 is disposed on the conversion device 400, and the second limiting portion 620 is disposed in the pen holder 100. The first limiting portion 610 and the second limiting portion 620 cooperate to limit the conversion device 400 from moving toward the core outlet end 110. The cooperation between the first limiting portion 610 and the second limiting portion 620 can better enable the head 220 to enter and exit the core outlet end 110, so that the conversion process is smooth.
[0068] refer to Figure 5 , Figure 6 As shown, the writing pen 10 further includes a positioning portion 500, which is disposed at the end of the conversion device 400 away from the refill 200, and the positioning portion 500 is fixed inside the pen holder 100, and the elastic member 300 is disposed between the positioning portion 500 and the conversion device 400. The positioning portion 500 can cooperate with the conversion device 400 to fix the elastic member 300, thereby providing the elastic member 300 with appropriate space to ensure the elastic member 300 can be extended and retracted.
[0069] In this embodiment, reference Figures 5 to 9 As shown, the conversion device 400 includes an inner rod 410, a rotating wheel 420 and a push rod 430. The inner rod 410 includes a first groove 411 and a second groove 412 arranged in an annular manner, and the depth of the first groove 411 along the length direction is greater than the depth of the second groove 412 along the length direction; the rotating wheel 420 is arranged to conflict with the inner rod 410, and the rotating wheel 420 can be switched between the first groove 411 and the second groove 412; the push rod 430 is penetrated by the inner rod 410, and the push rod 430 is matched with the rotating wheel 420 to push the rotating wheel 420 to rotate, thereby switching between the first groove 411 and the second groove 412; the inner rod 410 can be movably arranged along the length direction of the pen barrel 100, the elastic member 300 is arranged in contact with the inner rod 410, and the pen core 200 is arranged to conflict with the rotating wheel 420.
[0070] Based on the above settings, the user can rotate the rotating wheel 420 by pressing the push rod 430, so that the rotating wheel 420 switches between the first groove portion 411 and the second groove portion 412 of the inner rod 410. Also, since the depth of the first groove portion 411 along the length direction is greater than the depth of the second groove portion 412 along the length direction. Therefore, when the rotating wheel 420 is located in the first groove portion 411, the head 220 is located at the first position A1; when the rotating wheel 420 is located in the second groove portion 412, the head 220 is located at the second position A2. Thus, the conversion between the head 220 at the first position A1 and the head 220 at the second position A2 is realized.
[0071] In one embodiment, referring to Figure 11 , Figure 12 , Figure 13 and Figure 14 as shown, one end of the elastic member 300 abuts against the rod portion 210, and the other end of the elastic member 300 abuts against the conversion device 400.
[0072] In this embodiment, the elastic member 300 is arranged between the rod portion 210 and the conversion device 400, so that when the head 220 receives an impact, the energy generated by the refill 200 is directly absorbed by the elastic member 300, thereby avoiding damage to the head 220 of the refill 200.
[0073] In this embodiment, referring to Figure 14 as shown, the elastic member 300 is directly arranged to abut against the rotating wheel 420 of the conversion device 400. It should be noted that the elastic member 300 here can also be fixedly arranged with the rotating wheel 420 to prevent the elastic member 300 from falling off when the refill 200 is replaced.
[0074] In this embodiment, continuing to refer to Figure 14 as shown, the inner rod 410 extends towards the refill 200 to form a receiving space 413, and the end of the elastic member 300 close to the rotating wheel 420 is arranged in the receiving space 413. Along the length direction of the writing pen 10, the length of the receiving space 413 is greater than or equal to 1 mm and less than or equal to 20 mm. For example, the length of the receiving space 413 can be 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm. The receiving space 413 restricts the movement direction of the elastic member 300 and fixes the elastic member 300, thereby realizing the stability of the movement process of the elastic member 300.
Claims
1. A writing pen, characterized in that: The writing pen comprises: pen; A pen core, the pen core comprising a stem portion and a head portion connected to each other, the stem portion being arranged in the pen barrel, and the head portion having a first position located in the pen barrel and a second position located outside the pen barrel; An elastic member, the elastic member is arranged between the rod portion and the pen holder; When the head is located at the second position, the head can be pushed back to the first position by an external force.
2. The writing pen according to claim 1, characterized in that: The writing pen further comprises a conversion device, which is movably arranged in the pen holder along the length direction of the pen holder, one end of the conversion device is arranged to abut against the rod portion, the other end of the conversion device is arranged to abut against the elastic member, and the end of the elastic member facing away from the conversion device is connected to the pen holder; The switching device can be switched between a first state and a second state. When the switching device is in the first state, the head is located at a first position. When the switching device is in the second state, the head is located at a second position.
3. The writing pen according to claim 2, characterized in that: The conversion device comprises an inner rod, a rotating wheel and a push rod, wherein the inner rod comprises a first groove portion and a second groove portion which are arranged in an annular manner, and the depth of the first groove portion along the length direction is greater than the depth of the second groove portion along the length direction; the rotating wheel is arranged to be in conflict with the inner rod, and the rotating wheel can be switched between the first groove portion and the second groove portion; the push rod is arranged through the inner rod, and the push rod is matched with the rotating wheel to push the rotating wheel to rotate, thereby switching between the first groove portion and the second groove portion; The inner rod can be movably arranged along the length direction of the pen shaft, the elastic member is arranged in contact with the inner rod, and the pen core is arranged in contact with the rotating wheel.
4. The writing pen according to claim 2, characterized in that: The writing pen further comprises a positioning portion, which is arranged at the end of the conversion device away from the pen core and fixed inside the pen barrel, and the elastic member is arranged between the positioning portion and the conversion device.
5. The writing pen according to claim 2, characterized in that: The pen shaft includes a core outlet end, and the head enters and exits the pen shaft from the core outlet end. The writing pen includes a first limiting portion and a second limiting portion. The first limiting portion is arranged on the conversion device, and the second limiting portion is arranged in the pen shaft. The first limiting portion and the second limiting portion cooperate to limit the conversion device from moving toward the core outlet end.
6. The writing pen according to claim 1, characterized in that: The writing pen further comprises a conversion device, which is fixedly arranged in the pen holder, one end of the elastic member abuts against the rod, and the other end of the elastic member abuts against the conversion device; The switching device can be switched between a first state and a second state. When the switching device is in the first state, the head is located at a first position. When the switching device is in the second state, the head is located at a second position.
7. The writing pen according to claim 6, characterized in that: The conversion device comprises an inner rod, a rotating wheel and a push rod, wherein the inner rod comprises a first groove portion and a second groove portion which are arranged in an annular manner, and the depth of the first groove portion is greater than the depth of the second groove portion; the rotating wheel is arranged to be in conflict with the inner rod, and the rotating wheel can be switched between the first groove portion and the second groove portion; the push rod is arranged through the inner rod, and the push rod is matched with the rotating wheel to push the rotating wheel to rotate, thereby switching between the first groove portion and the second groove portion; The elastic member is disposed in contact with the rotating wheel.
8. The writing pen according to claim 7, characterized in that: The inner rod extends toward the pen core to form a receiving space, and the elastic member is arranged in the receiving space close to the rotating wheel end.
9. The writing pen according to claim 8, characterized in that: Along the length direction of the writing pen, the length of the accommodating space is greater than or equal to 1 mm and less than or equal to 20 mm.
10. The writing pen according to claim 1, characterized in that: The elastic force of the elastic member is greater than or equal to 300N and less than or equal to 4000N, or the elastic force of the elastic member is greater than or equal to 500N and less than or equal to 700N.