Touch pen
By setting elastic parts at the threaded connection of the stylus pen, filling the mating gap and providing a buffering effect, the problem of easy loosening of the stylus pen in the prior art is solved, and the feel and impact resistance of use are improved.
Patent Information
- Application Number
- CN202421780543.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-25
AI Technical Summary
After long-term use or accidental drop, existing stylus pens may easily affect their feel and impact resistance due to loose assembly clearance.
Elastic parts are provided at the threaded connection between the tip bracket of the stylus and the rod body to fill the mating gap between the threaded parts and provide cushioning when accidentally drops, enhancing impact resistance.
By filling the gap between the threaded parts and providing cushioning, loosening between the stylus head and the stylus body is reduced, and the feel and impact resistance are improved.
Smart Images
Figure CN222965646U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of touch control devices, and particularly to a touch pen. Background Art
[0002] In the related art, a touch pen for controlling a touch screen generally includes a pen body and a touch pen tip that can move relative to the touch pen. The touch pen tip can move relative to the pen body to interact with the content on the screen. To ensure the operation experience of consumers when using the touch pen, the touch pen tip is designed to be detachable from the pen tip bracket inside the touch pen. As a relatively common detachable connection form between the touch pen tip and the pen body, screw connection is likely to produce an assembly gap between the touch pen tip and the pen body, and is prone to looseness after long-term work or accidental dropping, affecting the use feel of the touch pen. Content of the Utility Model
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this reason, the utility model provides a touch pen, which can reduce the fitting gap between the touch pen tip and the pen body and enhance the anti-impact performance of the touch pen.
[0004] The touch pen according to the first aspect embodiment of the utility model includes:
[0005] A pen tip bracket, including a first threaded portion located at one end of the pen tip bracket in the length direction;
[0006] A touch pen tip, including a rod body, the rod body includes a second threaded portion, and the second threaded portion is threadedly connected to the first threaded portion;
[0007] A first elastic member, connecting at least part of the surface of the first threaded portion;
[0008] And / or, a second elastic member, connecting at least part of the surface of the second threaded portion.
[0009] The touch pen according to the embodiment of the utility model has at least the following beneficial effects: The touch pen tip is installed on the pen tip bracket through the threaded connection between the second threaded portion on the rod body and the first threaded portion. Since an elastic member is arranged on the threaded portion, the elastic member can fill the fitting gap between the first threaded portion and the second threaded portion; when the touch pen accidentally drops, the elasticity of the elastic member can also play a buffering role between the touch pen tip and the pen body, enhancing the anti-impact performance of the touch pen.
[0010] According to some embodiments of the present utility model, the stylus includes the first elastic member, and the first elastic member is adhesively connected to at least part of the surface of the first threaded portion; and / or, the stylus includes the second elastic member, and the second elastic member is adhesively connected to at least part of the surface of the second threaded portion.
[0011] According to some embodiments of the present utility model, the stylus includes the second elastic member, and the second elastic member is adhesively connected to at least part of the surface of the second threaded portion; the first threaded portion is an internal thread, and the second threaded portion is an external thread.
[0012] According to some embodiments of the present utility model, the thread teeth of the second threaded portion have a first helical surface and a second helical surface with opposite orientations; the stylus includes a second elastic member, and the second elastic member is connected to at least part of the first helical surface and / or at least part of the second helical surface.
[0013] According to some embodiments of the present utility model, the first threaded portion has a fourth helical surface and a fifth helical surface with opposite orientations; the fourth helical surface faces the first helical surface, the fifth helical surface faces the second helical surface, and the first helical surface and the fourth helical surface jointly clamp the second elastic member, and / or, the second helical surface and the fifth helical surface jointly clamp the second elastic member.
[0014] According to some embodiments of the present utility model, the thread teeth of the second threaded portion further have a third helical surface, and the third helical surface is parallel to the axis of the rod body; the stylus includes a second elastic member, and the second elastic member is connected to at least part of the third helical surface.
[0015] According to some embodiments of the present utility model, the first threaded portion has a sixth helical surface, the sixth helical surface is parallel to the third helical surface and faces the third helical surface, and the third helical surface and the sixth helical surface jointly clamp the second elastic member.
[0016] According to some embodiments of the present utility model, the stylus includes the second elastic member, and the second elastic member is sequentially connected to the surfaces of a plurality of thread teeth on the second threaded portion along the axial direction of the rod body.
[0017] According to some embodiments of the present utility model, the stylus includes the first elastic member, the first elastic member is a helix having the same helix direction as the first threaded portion, and the first elastic member is wound around and attached to the surface of the first threaded portion; and / or, the stylus includes the second elastic member, the second elastic member is a helix having the same helix direction as the second threaded portion, and the second elastic member is wound around and attached to the surface of the second threaded portion.
[0018] According to some embodiments of the present utility model, the touch pen tip includes a socket member, which is sleeved on one end of the rod body and is used to rotate the rod body; the torque for the first threaded portion to screw into and out of the second threaded portion is less than 0.15 kgf·cm.
[0019] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The following further describes the present utility model in conjunction with the drawings and embodiments, where:
[0021] Figure 1 is the overall schematic diagram of the touch pen of the present utility model;
[0022] Figure 2 is Figure 1 the partial cross-sectional view of the touch pen in
[0023] Figure 3 is Figure 1 a schematic diagram of the mating situation of the first threaded portion and the second threaded portion in
[0024] Figure 4 is Figure 3 the schematic diagram of the setting of the second elastic member of the touch pen in the first aspect embodiment in
[0025] Figure 5 is Figure 3 the schematic diagram of the setting of the second elastic member of the touch pen in the second aspect embodiment in
[0026] Figure 6 is Figure 2 the second schematic diagram of the mating situation of the first threaded portion and the second threaded portion in
[0027] Figure 7 is Figure 2 the third schematic diagram of the mating situation of the first threaded portion and the second threaded portion in
[0028] Figure 8 is Figure 7 the schematic diagram of the setting of the second elastic member of the touch pen in the third aspect embodiment in
[0029] Figure 9 is Figure 7 the schematic diagram of the setting of the second elastic member of the touch pen in the fourth aspect embodiment in
[0030] Figure 10 is Figure 2 the third schematic diagram of the mating situation of the first threaded portion and the second threaded portion in
[0031] Figure 11 For Figure 1 Schematic diagram of the second elastic member provided on the second threaded portion in
[0032] Reference numerals:
[0033] Tip holder 100, first threaded portion 110, fourth helical surface 111, fifth helical surface 112, sixth helical surface 113;
[0034] Touch pen tip 200, rod body 210, second threaded portion 211, first helical surface 2111, second helical surface 2112, third helical surface 2113, socket member 220, contact 220a;
[0035] Second elastic member 300. Detailed implementation manners
[0036] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.
[0037] In the description of the present utility model, it should be understood that the orientation descriptions such as up, down, front, back, left, right, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0038] In the description of the present utility model, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0039] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.
[0040] In the description of the present utility model, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0041] Please refer to Figures 1 - 11 As shown, the present utility model provides a stylus, which includes a nib holder 100 and a touch pen tip 200; the nib holder 100 includes a first threaded portion 110, and the first threaded portion 110 is located at one end of the nib holder 100 in the length direction; the touch pen tip 200 includes a rod body 210, and the rod body 210 includes a second threaded portion 211, and the second threaded portion 211 is threadedly connected to the first threaded portion 110.
[0042] Without departing from the inventive concept of the present utility model, those skilled in the art can, according to actual needs, only provide a first elastic member connected to at least a part of the surface of the first threaded portion 110 in a stylus, or only provide a second elastic member 300 connected to at least a part of the surface of the second threaded portion 211 in a stylus, or provide both the first elastic member and the second elastic member 300 in a stylus.
[0043] Since both the first elastic member and the second elastic member have elasticity, the first elastic member and the second elastic member 300 disposed between the first threaded portion 110 and the second threaded portion 211 can both provide a buffering effect for the first threaded portion 110 and the second threaded portion 211 when the stylus accidentally drops, thereby reducing the impact generated between the nib holder 100 and the rod body 210 when the stylus accidentally drops, and further enhancing the impact resistance performance of the stylus.
[0044] Please refer to Figure 11 As shown, in some embodiments, a specific form of the elastic member connected to the threaded portion is that the elastic member is a helix having the same helix direction as the threaded portion, and the elastic member winds around and adheres to the surface of the threaded portion.
[0045] Specifically, taking the second threaded portion 211 provided in the form of an external thread as an example, Figure 11 shows the cross-section of the second threaded portion 211 and the second elastic member 300. The second elastic member 300 is spiral, and the helix directions of the second elastic member 300 and the second threaded portion 211 are both right-handed. As shown in Figure 11In the cross section shown, the cross sections of the second elastic member 300 are all located in the screw groove of the second threaded portion 211, and the downward side of the cross section of the second elastic member 300 is in close contact with the upward surface of the second threaded portion 211, and the side of the cross section of the second elastic member 300 facing the axis of the second threaded portion 211 is in close contact with the radial surface of the second threaded portion 211, that is, the second elastic member 300 is wound around and attached to the surface of the second threaded portion 211. When the first threaded portion 110 and the second threaded portion 211 are matched, the second elastic member 300 can be accommodated in the matching gap between the first threaded portion 110 and the second threaded portion 211, and play an anti-impact effect.
[0046] When the threaded portion is in the form of an internal thread, the elastic member can also be arranged in the form of a surface that is close to the internal thread, so that the elastic member is wrapped around and attached to the surface of the threaded portion, thereby achieving an impact-proof effect. Specifically, in other embodiments, the first elastic member is spiral, the first elastic member and the first threaded portion 110 are both right-handed, the cross-section of the first elastic member is located in the thread groove of the first threaded portion 110, and the side of the cross-section of the first elastic member facing the axial direction of the first threaded portion 110 is close to the surface opposite to the first threaded portion 110, and the side of the cross-section of the first elastic member facing away from the axis of the first threaded portion 110 is close to the radial surface of the first threaded portion, that is, the first elastic member is wrapped around and attached to the surface of the first threaded portion 110.
[0047] Please refer to Figures 2 - 4 As shown, in some embodiments, a specific form of the elastic member being connected to the threaded portion is: the elastic member is adhesively connected to at least a portion of the surface of the corresponding threaded portion; specifically, when the stylus pen is provided with a first elastic member, the first elastic member is adhesively connected to at least a portion of the surface of the first threaded portion 110; when the stylus pen is provided with a second elastic member 300, the second elastic member 300 is adhesively connected to at least a portion of the surface of the second threaded portion 211; when the stylus pen is provided with a first elastic member and a second elastic member 300, the first elastic member is adhesively connected to at least a portion of the surface of the first threaded portion 110, and the second elastic member 300 is adhesively connected to at least a portion of the surface of the second threaded portion 211.
[0048] Compared with other connection methods, those skilled in the art can directly attach the elastic member to a specific surface of the threaded portion by means of an adhesive connection. It should be noted that the adhesive connection between the elastic member and the threaded portion referred to in the present invention can be either the threaded portion and the elastic member being bonded by an adhesive medium, or the threaded portion or the elastic member itself being made of an adhesive material, and the threaded portion and the elastic member being bonded by the adhesiveness of the threaded portion or the elastic member itself.
[0049] A specific form of bonding the threaded portion and the elastic member through a viscous medium is that the elastic member itself is made of an elastic material and is bonded to the surface of the threaded portion through glue.
[0050] A specific form in which the threaded portion and the elastic member are bonded by the viscosity of the threaded portion or the elastic member itself is as follows: The elastic member itself is made of Loctite glue; the Loctite glue itself has viscosity and certain elasticity, and is arranged between the first threaded portion 110 and the second threaded portion 211, which can reduce the gap between the two and play an anti-impact effect.
[0051] Please refer to Figures 2 - 9 As shown, further, in some embodiments, the stylus includes a second elastic member 300, and the second elastic member 300 is adhesively connected to at least part of the surface of the second threaded portion 211; the first threaded portion 110 is an internal thread, and the second threaded portion 211 is an external thread. Since the end size of the stylus tip 200 is small, setting the second threaded portion 211 on the rod body 210 as an external thread is beneficial to processing; on the other hand, the second threaded portion 211 being an external thread is beneficial to operating on the outside of the stylus tip 200, and thus is beneficial to setting the adhesive connection between the second elastic member 300 and the second threaded portion 211.
[0052] The following further uses Figures 3 - 10 to illustrate the technical effects of the second elastic member 300 being arranged at different positions on the second threaded portion 211.
[0053] Please refer to Figure 3 and Figure 4 As shown, in some embodiments, the thread teeth of the second threaded portion 211 have a first helical surface 2111 and a second helical surface 2112 with opposite orientations; the stylus includes a second elastic member 300, and the second elastic member 300 is connected to at least part of the first helical surface 2111 or at least part of the second helical surface 2112. Arranging the second elastic member 300 on the first helical surface 2111 or the second helical surface 2112 of the thread teeth of the second threaded portion 211 is equivalent to filling the mating gap along the axial direction of the second threaded portion 211 with the thread teeth. When the second threaded portion 211 makes an axial relative movement with respect to the first threaded portion 110, the second elastic member 300 can reduce the axial impact force.
[0054] Specifically, in some embodiments, the first threaded portion 110 has a fourth helical surface 111 and a fifth helical surface 112 with opposite orientations; the fourth helical surface 111 faces the first helical surface 2111, and the fifth helical surface 112 faces the second helical surface 2112; in some embodiments, such as Figure 4As shown, the first helical surface 2111 and the fourth helical surface 111 have an assembly gap along the axial direction of the second thread portion 211. The second elastic member 300 provided on the first helical surface 2111 can buffer the relative movement between the first thread portion 110 and the second thread portion 211 when the first helical surface 2111 and the fourth helical surface 111 approach each other axially, reducing the impact between the first helical surface 2111 and the fourth helical surface 111. In some embodiments, the second helical surface 2112 and the fifth helical surface 112 have an assembly gap along the axial direction of the second thread portion 211. The second elastic member 300 provided on the second helical surface 2112 can buffer the relative movement between the first thread portion 110 and the second thread portion 211 when the second helical surface 2112 and the fifth helical surface 112 approach each other axially, reducing the impact between the second helical surface 2112 and the fifth helical surface 112.
[0055] Please refer to Figure 3 、 Figure 5 As shown, further, in some embodiments, the first thread portion 110 has a fourth helical surface 111 and a fifth helical surface 112 facing away from each other; the fourth helical surface 111 faces the first helical surface 2111, the fifth helical surface 112 faces the second helical surface 2112, the second elastic member 300 is connected to at least a part of the first helical surface 2111, and the first helical surface 2111 and the fourth helical surface 111 jointly clamp the second elastic member 300. When the first helical surface 2111 and the fourth helical surface 111 tend to approach each other, the second elastic member 300 can directly buffer the first thread portion 110 and the second thread portion 211. On the other hand, when the first thread portion 110 and the second thread portion 211 tend to rotate relative to each other, the elastic force provided by the second elastic member 300 for the first thread portion 110 and the second thread portion 211 can also further increase the frictional force between the first thread portion 110 and the second thread portion 211, further reducing loosening.
[0056] In other embodiments, the second elastic member 300 is connected to at least a part of the second helical surface 2112, and the second helical surface 2112 and the fifth helical surface 112 jointly clamp the second elastic member 300. When the second helical surface 2112 and the fifth helical surface 112 tend to approach each other, the second elastic member 300 can directly buffer the first thread portion 110 and the second thread portion 211. On the other hand, when the first thread portion 110 and the second thread portion 211 tend to rotate relative to each other, the elastic force provided by the second elastic member 300 for the first thread portion 110 and the second thread portion 211 can also further increase the frictional force between the first thread portion 110 and the second thread portion 211, further reducing loosening.
[0057] Please refer to Figure 3 、 Figure 6As shown, in some embodiments, the thread of the second thread portion 211 has a first helical surface 2111 and a second helical surface 2112 facing away from each other; the stylus includes a second elastic member 300, and the second elastic member 300 is connected to at least part of the first helical surface 2111 and at least part of the second helical surface 2112. Since the second elastic member 300 is adhesively connected to at least part of the first helical surface 2111 and at least part of the second helical surface 2112 at the same time, when the first thread portion 110 approaches the second thread portion 211 radially relative to the second thread portion 211, it will first contact the second elastic member 300, so that the second elastic member 300 can provide a buffer between the first thread portion 110 and the second thread portion 211 to reduce the radial impact force.
[0058] Please refer to Figure 7 、 Figure 8 As shown, in some embodiments, the thread of the second thread portion 211 further has a third helical surface 2113, and the third helical surface 2113 is parallel to the axis of the rod body 210; the stylus includes a second elastic member 300, and the second elastic member 300 is connected to at least part of the third helical surface 2113. Arranging the second elastic member 300 on the third helical surface 2113 of the thread of the second thread portion 211 is equivalent to filling a mating gap in the radial direction of the thread along the second thread portion 211. When the second thread portion 211 undergoes a relative radial movement with respect to the first thread portion 110, the second elastic member 300 can reduce the radial impact force.
[0059] Specifically, in some embodiments, the first thread portion 110 has a sixth helical surface 113, and the sixth helical surface 113 is parallel to the third helical surface 2113 and faces the third helical surface 2113; when the second elastic member 300 is arranged on the third helical surface 2113, the second elastic member 300 can buffer the relative movement between the first thread portion 110 and the second thread portion 211 when the third helical surface 2113 and the sixth helical surface 113 approach each other radially, and reduce the impact between the third helical surface 2113 and the sixth helical surface 113.
[0060] Please refer to Figure 7 、 Figure 9As shown, further, in some embodiments, the first threaded portion 110 has a sixth helical surface 113, the sixth helical surface 113 is parallel to the third helical surface 2113 and faces the third helical surface 2113, and the third helical surface 2113 and the sixth helical surface 113 jointly clamp the second elastic member 300. When there is a tendency for the third helical surface 2113 and the sixth helical surface 113 to move relatively closer, the second elastic member 300 can directly buffer the first threaded portion 110 and the second threaded portion 211. On the other hand, when there is a tendency for the first threaded portion 110 and the second threaded portion 211 to rotate relative to each other, the elastic force provided by the second elastic member 300 for the first threaded portion 110 and the second threaded portion 211 can also enable the second elastic member 300 to apply a frictional force that hinders relative rotation through the sixth helical surface 113, further reducing loosening.
[0061] Please refer to Figure 10 As shown, in some embodiments, the stylus includes a second elastic member 300, and the second elastic member 300 is sequentially connected to the surfaces of multiple threads on the second threaded portion 211 along the axial direction of the rod body 210. Specifically, Figure 10 shows the cross-section of the second threaded portion 211 and the second elastic member 300 in some embodiments. The continuous threads are shown as multiple threads in the cross-section, and the same helical surface is shown as multiple line segments in the cross-section; as previously mentioned, the threads of the second threaded portion 211 have a first threaded surface, a second threaded surface, and a third threaded surface. The second elastic member 300 extends along the axial direction of the rod body 210, and the length of the second elastic member 300 along the axial direction of the rod body 210 is greater than the distance between two threads; one side of the second elastic member 300 close to the axis of the second threaded portion 211 is attached to the surface of the second threaded portion 211, so that the second elastic member 300 is sequentially connected to the surfaces of multiple threads on the second threaded portion 211. Through the above solution, the second elastic member 300 is connected to at least part of the first helical surface 2111, at least part of the second helical surface 2112, and at least part of the third helical surface 2113, and can buffer the movement of the first threaded portion 110 relative to the second threaded portion 211; on the other hand, since the second elastic member 300 is continuous in the axial direction of the rod body 210 and the threaded structure in the stylus is small, when the second elastic member 300 itself is made of a viscous material, those skilled in the art can more easily use processes such as brushing and soaking to treat the surface of the second threaded portion 211 to form a second elastic portion with a viscous connection on at least part of the surface of the second threaded portion 211. Exemplarily, the staff can drop Loctite on the surface of the second threaded portion 211 so that the Loctite directly covers the surfaces of multiple threads of the second threaded portion 211.
[0062] Please refer to Figure 1 and Figure 2As shown, further, in some embodiments, the touch pen tip 200 includes a socket member 220 which is sleeved on one end of the rod body 210 and is used to rotate the rod body 210; when the first elastic member and / or the second elastic member 300 is provided, the torque for the first threaded portion 110 to screw into and out of the second threaded portion 211 is less than 0.15 kgf·cm. The above solution can reduce the slippage between the socket member 220 and the rod body 210, and reduce the risk that the touch pen tip 200 cannot be loaded into and removed from the nib holder 100.
[0063] In some embodiments, the contact head 220a of the touch pen tip 200 for contacting the touch screen is designed as the socket member 220 for rotating the rod body 210; in order to ensure the writing experience, the hardness of the commonly used material of the contact head 220a is usually relatively soft. Therefore, when the torque required for assembling the second threaded portion 211 and the touch pen body is greater than 0.15 kfg·cm, assembling the touch pen tip 200 and the touch pen body by rotating the contact head 220a is more likely to damage the connection between the inside of the contact head 220a and the rod body 210, making the touch pen tip 200 unable to be assembled with the touch pen body and affecting the use effect of the contact head 220a.
[0064] As a preferred solution, in order to ensure that the first elastic member and the second elastic member 300 can achieve a better buffering effect, when the first elastic member and / or the second elastic member 300 is provided, the torque for the first threaded portion 110 to screw into and out of the second threaded portion 211 should be greater than 0.03 kgf·cm.
[0065] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present utility model pertains, various changes can be made without departing from the purpose of the present utility model. In addition, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.
Claims
1. A stylus pen, characterized in that: include: The pen tip holder comprises a first threaded portion, wherein the first threaded portion is located at one end of the pen tip holder in the length direction; A stylus pen head, comprising a rod body, wherein the rod body comprises a second threaded portion, and the second threaded portion is threadedly connected to the first threaded portion; a first elastic member connected to at least a portion of a surface of the first threaded portion; And / or, a second elastic member is connected to at least a portion of the surface of the second threaded portion.
2. The touch pen according to claim 1, characterized in that: The stylus pen includes the first elastic member, which is adhesively connected to at least a portion of the surface of the first threaded portion; and / or the stylus pen includes the second elastic member, which is adhesively connected to at least a portion of the surface of the second threaded portion.
3. The touch pen according to claim 2, characterized in that: The touch pen includes the second elastic member, which is adhesively connected to at least a portion of the surface of the second threaded portion; the first threaded portion is an internal thread, and the second threaded portion is an external thread.
4. The touch pen according to claim 3, characterized in that: The thread of the second threaded portion has a first helical surface and a second helical surface facing opposite directions; the stylus includes a second elastic member, and the second elastic member is connected to at least a portion of the first helical surface and / or at least a portion of the second helical surface.
5. The touch pen according to claim 4, characterized in that: The first threaded portion has a fourth helical surface and a fifth helical surface facing opposite directions; the fourth helical surface faces the first helical surface, the fifth helical surface faces the second helical surface, the first helical surface and the fourth helical surface jointly clamp the second elastic member, and / or the second helical surface and the fifth helical surface jointly clamp the second elastic member.
6. The touch pen according to claim 3, characterized in that: The thread of the second threaded portion further has a third helical surface, and the third helical surface is parallel to the axis of the rod body; the touch pen includes the second elastic member, and the second elastic member is connected to at least a portion of the third helical surface.
7. The touch pen according to claim 6, characterized in that: The first threaded portion has a sixth helical surface, the sixth helical surface is parallel to the third helical surface and faces the third helical surface, and the third helical surface and the sixth helical surface jointly clamp the second elastic member.
8. The touch pen according to claim 3, characterized in that: The touch pen includes the second elastic member, and the second elastic member is sequentially connected to the surfaces of a plurality of screw teeth on the second threaded portion along the axis direction of the rod body.
9. The touch pen according to claim 1, characterized in that: The stylus pen includes the first elastic member, which is a helical body with the same rotation direction as the first threaded portion, and the first elastic member is wound around and attached to the surface of the first threaded portion; and / or, the stylus pen includes the second elastic member, which is a helical body with the same rotation direction as the second threaded portion, and the second elastic member is wound around and attached to the surface of the second threaded portion.
10. The touch pen according to claim 1, characterized in that: The stylus pen head comprises a sleeve connector, which is sleeved on one end of the rod body and used to rotate the rod body; the torque of the first threaded portion being twisted in and out from the second threaded portion is less than 0.15 kgf·cm.