Electronic pen

Abstract

The utility model provides an electronic pen, which belongs to the technical field of electronic pens and comprises a support and a pen point, the support is provided with a threaded hole and a locking hole, and the threaded hole is communicated with the locking hole; the pen point comprises a first part and a second part which are connected with each other, the first part is in threaded connection with the hole wall of the threaded hole, the second part is arranged in the locking hole, and the second part is in interference fit with the hole wall of the locking hole. According to the electronic pen, the first part of the pen point is in threaded connection with the interior of the threaded hole of the support, meanwhile, the second part is inserted into the locking hole and is in interference fit with the hole wall of the locking hole, and when the electronic pen falls off or the pen point is twisted, the stability of the pen point can be improved through interference fit between the second part and the locking hole; the threaded connection between the first part and the threaded hole is prevented from loosening, so that the pen point is effectively prevented from falling off from the bracket.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic pens, and particularly relates to an electronic pen capable of preventing the nib from becoming loose. Background Art

[0002] In the related prior art, the nib connecting shaft of an electronic pen is connected to the nib support group inside the pen barrel by a thread. Among them, after the nib connecting shaft is connected to the support, when the electronic pen drops or the nib connecting shaft is twisted, it is possible that the nib connecting shaft comes off relative to the support, making the electronic pen unable to be used normally. Content of the Utility Model

[0003] The utility model aims to at least solve the above technical problems existing in the prior art. For this purpose, the utility model provides an electronic pen capable of effectively preventing the nib from falling off the support.

[0004] The electronic pen according to an embodiment of the utility model includes a support and a nib. The support is provided with a threaded hole and a locking hole, and the threaded hole and the locking hole communicate with each other; the nib includes a first part and a second part connected to each other. The first part is threadedly connected to the hole wall of the threaded hole, and the second part is disposed in the locking hole and is in interference fit with the hole wall of the locking hole.

[0005] The electronic pen according to an embodiment of the utility model has at least the following beneficial effects: In the electronic pen of the utility model, the first part of the nib is threadedly connected in the threaded hole of the support, and at the same time, the second part is inserted into the locking hole and is in interference fit with the hole wall of the locking hole. When the electronic pen drops or the nib is twisted, the interference fit between the second part and the locking hole can be used to improve the stability of the nib, avoid the loosening of the threaded connection between the first part and the threaded hole, and thus effectively prevent the nib from falling off the support.

[0006] According to some embodiments of the utility model, at least two second parts are provided, one end of the second part is connected to the first part, and a plurality of the second parts are arranged at intervals around the center of the first part.

[0007] According to some embodiments of the utility model, two second parts are provided, and the two second parts are arranged facing each other.

[0008] According to some embodiments of the utility model, along the direction from the first part to the second part, the hole wall of the locking hole includes a first hole wall and a second hole wall. The first hole wall is connected to the second hole wall, and along the direction from the first part to the second part, the diameter of the first hole wall gradually decreases.

[0009] According to some embodiments of the utility model, a chamfer is provided at one end of the second part away from the first part.

[0010] According to some embodiments of the present utility model, the second part is provided with a groove. The bracket includes a body part and a protruding part. The body part is provided with the locking hole and the threaded hole. The protruding part is connected to the hole wall of the locking hole and protrudes relative to the hole wall of the locking hole. The protruding part is inserted into the groove, and the protruding part is in interference fit with the groove wall.

[0011] According to some embodiments of the present utility model, the protruding part is an elastic structure. When the protruding part is inserted into the groove, the protruding part is in a compressed and deformed state.

[0012] According to some embodiments of the present utility model, along the length direction of the pen tip, the length of the second part is greater than the depth of the locking hole.

[0013] According to some embodiments of the present utility model, along the length direction of the pen tip, the length of the second part is 0.1 mm to 2.2 mm, and the depth of the locking hole is 0.1 mm to 0.8 mm.

[0014] According to some embodiments of the present utility model, the first part and the second part are of an integral structure.

[0015] Some additional aspects and advantages of the present utility model will be given in the following description, and some additional aspects and advantages will become apparent from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0017] Figure 1 is the first structural cross-sectional view of the pen tip and the bracket;

[0018] Figure 2 is Figure 1 a partially enlarged schematic view of the structure shown;

[0019] Figure 3 is the axonometric schematic view of the first structure of the pen tip;

[0020] Figure 4 is a schematic view of a structure of the threaded hole and the locking hole on the bracket;

[0021] Figure 5 is the second structural cross-sectional view of the pen tip and the bracket;

[0022] Figure 6 is the axonometric schematic view of the second structure of the pen tip;

[0023] Figure 7It is the third structural schematic diagram of the nib and the holder;

[0024] Figure 8 It is a structural schematic diagram of the nib and the holder installed on the electronic pen.

[0025] In the figure:

[0026] 100 - nib, 101 - first part, 102 - second part, 103 - connecting shaft, 104 - nib sleeve;

[0027] 1011 - external thread, 1021 - groove, 1022 - chamfer;

[0028] 200 - holder, 201 - threaded hole, 202 - locking hole, 203 - body part, 204 - protruding part;

[0029] 2021 - first hole wall, 2022 - second hole wall, 2023 - bottom surface of the hole;

[0030] 300 - pen shaft, 301 - installation cavity. Detailed implementation manners

[0031] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0032] In the description of the present invention, it should be understood that the orientation descriptions such as up and down refer to 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 invention 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 invention.

[0033] In the description of the present invention, "a plurality of" means more than two. If there is a description of the first and the second, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, words such as "set", "install", and "connect" should be understood in a broad sense. Those skilled in the relevant technical field can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0035] In the related prior art, the tip connecting shaft of the electronic pen is threadedly connected to the tip support group inside the pen barrel. Among them, after the tip connecting shaft is connected to the support, when the electronic pen drops or the tip connecting shaft is twisted, it is possible for the tip connecting shaft to fall off relative to the support, rendering the electronic pen unusable.

[0036] For this reason, the present utility model proposes an electronic pen that can effectively prevent the tip 100 from falling off the support 200.

[0037] Referring to Figure 1 and Figure 2 An electronic pen according to an embodiment of the present utility model includes a support 200 and a tip 100, wherein a threaded hole 201 and a locking hole 202 that communicate with each other are provided on the support 200. The tip 100 includes a first part 101 and a second part 102 that are connected to each other. The first part 101 is threadedly connected to the inner wall of the threaded hole 201, and the second part 102 is disposed in the locking hole 202 and is in interference fit with the inner wall of the locking hole 202.

[0038] In the electronic pen of the present utility model, the first part 101 of the tip 100 is threadedly connected in the threaded hole 201 of the support 200, and at the same time, the second part 102 is inserted into the locking hole 202 and is in interference fit with the inner wall of the locking hole 202. When the electronic pen drops or the tip 100 is twisted, the interference fit between the second part 102 and the locking hole 202 can be used to improve the stability of the tip 100, avoiding loosening of the threaded connection between the first part 101 and the threaded hole 201, and thus effectively preventing the tip 100 from falling off the support 200.

[0039] In some embodiments of the present utility model, the distribution directions of the threaded hole 201 and the locking hole 202 are the same as the direction from the first part 101 to the second part 102, so that when the tip 100 is installed, it is convenient for the first part 101 to be threadedly engaged with the threaded hole 201 and for the second part 102 to be pressed into the locking hole 202.

[0040] Referring to Figure 1 and Figure 2, in some embodiments, along the length direction of the nib 100, the first part 101 and the second part 102 are distributed left and right, and the second part 102 is located at the end of the nib 100. The threaded hole 201 and the locking hole 202 on the bracket 200 are correspondingly distributed left and right. In this way, when installing the nib 100, when the first part 101 is threadedly connected to the hole wall of the threaded hole 201, a thrust can be applied to the second part 102 to push it into the locking hole 202. It can be understood that if the positions of the first part 101 and the second part 102 are switched so that the first part 101 is located at the end of the nib 100, the threaded hole 201 and the locking hole 202 will also be correspondingly switched, so that when the first part 101 is threadedly connected to the threaded hole 201, the second part 102 will be pulled into the locking hole 202.

[0041] Referring to Figure 3 , in some embodiments of the present invention, the nib 100 is provided with at least two second parts 102. One end of the second part 102 is connected to the first part 101, and all the second parts 102 are arranged at intervals around the center of the first part 101. In this embodiment, by providing a plurality of second parts 102, the interference fit between each second part 102 and the locking hole 202 is used to increase the acting force between the nib 100 and the bracket 200, which helps to improve the connection strength between the nib 100 and the bracket 200, and further prevent the nib 100 from falling off the bracket 200. In this embodiment, the second parts 102 are circumferentially distributed around the center of the first part 101, which is beneficial to inserting all the second parts 102 into the locking hole 202 and having an interference fit with the hole wall of the locking hole 202. Specifically, the diameter of the circumcircle formed by a plurality of second parts 102 distributed around the center of the first part 101 is slightly larger than the aperture of the locking hole 202. In this way, when all the second parts 102 are inserted into the locking hole 202, an interference fit can be achieved, and the difference between the diameter of the circumcircle of the second part 102 and the aperture of the locking hole 202 is the interference amount between the hole wall of the second part 102 and the locking hole 202. The second parts 102 are arranged at intervals. When abutting against the hole wall of the locking hole 202, they can deform towards the center of the first part 101, which is beneficial to improving the smoothness of inserting the second part 102 into the locking hole 202 and facilitating the disassembly and assembly of the nib 100.

[0042] In a further embodiment, a plurality of second parts 102 are evenly arranged around the center of the first part 101. Since there will be an interaction force between the second part 102 and the hole wall of the locking hole 202 when they abut against each other, in this embodiment, by evenly arranging the second parts 102 around the center of the first part 101, the acting forces between a plurality of second parts 102 and the hole wall of the locking hole 202 can be kept in balance with each other, thereby improving the connection stability between the nib 100 and the bracket 200.

[0043] Referring to Figures 1 to 3, in some embodiments of the present utility model, the nib 100 is provided with two second portions 102, and the two second portions 102 are arranged facing each other. In this embodiment, by setting the two second portions 102 to have an interference fit with the locking holes 202, it can not only improve the connection stability between the nib 100 and the bracket 200, but also facilitate production and processing, contributing to the simplification of the structure. Specifically, the second portion 102 is a semi-cylindrical structure, and the outer contour surfaces of the two second portions 102 form a cylindrical surface, and the diameter of this cylindrical surface is slightly larger than the aperture of the locking hole 202, so as to achieve an interference fit when inserted into the locking hole 202.

[0044] Referring to Figure 4 , in some embodiments of the present utility model, along the direction from the first portion 101 to the second portion 102, the hole wall of the locking hole 202 includes a first hole wall 2021 and a second hole wall 2022. The first hole wall 2021 is connected to the second hole wall 2022, and along the direction from the first portion 101 to the second portion 102, the diameter of the first hole wall 2021 gradually decreases. The second portion 102 has an interference fit with the second hole wall 2022. With the structural arrangement of this embodiment, during the installation process, when the second portion 102 is inserted into the locking hole 202, the first hole wall 2021 can guide the second portion 102, enabling the second portion 102 to be smoothly inserted into the locking hole 202 and have an interference fit with the second hole wall 2022.

[0045] Further, referring to Figure 3 , in some embodiments of the present utility model, a chamfer 1022 is provided at one end of the second portion 102 away from the first portion 101. The cooperation of the chamfer 1022 with the first hole wall 2021 can further improve the smoothness of the second portion 102 inserted into the locking hole 202 and abutting against the second hole wall 2022. Referring to the figure, when multiple second portions 102 are arranged around the center of the first portion 101, the chamfer 1022 is provided on the side of the second portion 102 away from the center of the first portion 101.

[0046] Referring to Figure 7, in some embodiments of the present utility model, a groove 1021 is provided at one end of the second part 102 away from the first part 101. The bracket 200 includes a body part 203 and a protruding part 204. The locking hole 202 and the threaded hole 201 are provided on the body part 203. The locking hole 202 includes a hole bottom surface 2023 opposite to its own hole passage. The protruding part 204 is connected to the hole bottom surface 2023 of the locking hole 202 and protrudes relative to the hole bottom surface 2023. The protruding part 204 is inserted into the groove 1021 of the second part 102 and is in interference fit with the groove wall of the groove 1021. In this embodiment, by providing the protruding part 204 in the locking hole 202 to insert into the groove 1021 of the second part 102, the connection stability between the nib 100 and the bracket 200 can be further improved, preventing the nib 100 from falling off. In this embodiment, the outer contour of the second part 102 is a cylindrical surface and the diameter is slightly larger than the aperture of the locking hole 202, so as to achieve an interference fit with the hole wall of the locking hole 202.

[0047] It can be understood that the second part 102 may not abut against the hole wall of the locking hole 202, but only be in interference fit with the protruding part 204, which also has the effect of preventing the nib 100 from falling off.

[0048] In some embodiments of the present utility model, the protruding part 204 is an elastic structure, so that when the protruding part 204 is inserted into the groove 1021, the protruding part 204 is in a compressed and deformed state. In this embodiment, the second part 102 can be in interference fit with the hole wall of the locking hole 202 and in interference fit with the protruding part 204 at the same time, improving the installation stability of the nib 100. The protruding part 204 can be made of rubber material or other elastic materials.

[0049] Refer to Figure 7 , in some embodiments of the present utility model, the external thread 1011 on the first part 101 extends to the outer peripheral surface of the second part 102. The locking hole 202 is provided with a protruding part 204 made of an elastic material. The protruding part 204 is inserted into the groove 1021 of the second part 102. The aperture of the locking hole 202 is kept consistent with the threaded hole 201 and is provided with internal threads.

[0050] Refer to Figure 2 and Figure 5 , in some embodiments of the present utility model, along the length direction of the nib 100, the length of the second part 102 is greater than the depth of the locking hole 202. In this way, when a plurality of second parts 102 are arranged at intervals around the center of the first part 101, it is beneficial for the second part 102 to deform towards the center of the first part 101, thereby improving the smoothness of installation. And when the second part 102 abuts against the hole bottom surface 2023 of the locking hole 202, it can give the user feedback that the installation is in place.

[0051] In some embodiments of the present utility model, along the length direction of the nib 100, the length of the second part 102 is 0.1 mm to 2.2 mm, and the depth of the locking hole 202 is 0.1 mm to 0.8 mm. Through this dimension control, while improving the installation stability of the nib 100 by the cooperation of the second part 102 and the locking hole 202, it can be ensured that no large space is occupied.

[0052] Specifically, the length of the second part 102 is controlled to be 1.8 mm to 2.2 mm, and the depth of the locking hole 202 is controlled to be 0.5 mm to 0.8 mm, so that the second part 102 can be deformed when inserted into the locking hole 202.

[0053] It can be understood that in practical applications, the length of the second part 102 can also be controlled to be less than the depth of the locking hole 202, so that when the nib 100 is connected and fixed to the bracket 200, the second part 102 can be completely inserted into the locking hole 202, improving the installation stability of the nib 100.

[0054] In some embodiments of the present utility model, the first part 101 and the second part 102 are of an integral structure.

[0055] In the above-mentioned multiple embodiments, the structures of the nib 100 and the bracket 200 are mainly described, and the description order is not used as a limitation on the preferred order of the embodiments of the present application. The electronic pen of the present application will be further described below in combination with the main structure of the electronic pen.

[0056] Refer to Figure 1 and Figure 8, in some embodiments of the present utility model, the electronic pen is provided with a pen shaft 300, a pen tip 100 and a bracket 200. An installation cavity 301 is arranged inside the pen shaft 300 for installing functional components related to the operation control of the electronic pen, such as a power supply, a circuit board, etc. One end of the pen shaft 300 has an installation opening communicating with the installation cavity 301. The bracket 200 is arranged in the installation cavity 301. Along the length direction of the pen shaft 300, the threaded hole 201 is opposite to the installation opening, and the locking hole 202 is arranged at one end of the threaded hole 201 far away from the installation opening. The pen tip 100 includes a pen tip sleeve 104 and a connecting shaft 103. One end of the connecting shaft 103 is connected to the pen tip sleeve 104, and the first part 101 and the second part 102 are sequentially arranged on the connecting shaft 103 along the direction away from the pen tip sleeve 104. The connecting shaft 103 is inserted into the installation opening from the outside of the installation opening, so that the first part 101 is threadedly connected in the threaded hole 201 and the second part 102 is inserted into the locking hole 202. When the electronic pen drops and the pen tip 100 is impacted, and when the pen tip 100 is twisted due to use, the interference fit between the second part 102 and the locking hole 202 can offset a part of the acting force, making it not easy for the threaded connection between the first part 101 and the threaded hole 201 to become loose, thereby preventing the pen tip 100 from falling off the bracket 200.

[0057] Refer to Figure 2 , Figure 3 and Figure 8, in some embodiments of the present utility model, the electronic pen is provided with a pen shaft 300, a pen tip 100 and a bracket 200. An installation cavity 301 is arranged inside the pen shaft 300, and an installation opening communicating with the installation cavity 301 is arranged at one end of the pen shaft 300 along its own length direction. The bracket 200 is installed in the installation cavity 301. The bracket 200 is provided with a threaded hole 201 at a position opposite to the installation opening, and a locking hole 202 is arranged at one end of the threaded hole 201 away from the installation opening, keeping the installation opening, the threaded hole 201 and the locking hole 202 coaxially distributed. Along the direction away from the threaded hole 201, the hole wall of the locking hole 202 includes a first hole wall 2021 and a second hole wall 2022, and along the direction away from the threaded hole 201, the aperture of the first hole wall 2021 decreases, so that one end of the locking hole 202 close to the threaded hole 201 forms a conical hole structure through the first hole wall 2021. One end of the first hole wall 2021 close to the threaded hole 201 is connected to the hole wall of the threaded hole 201. The pen tip 100 includes a pen tip sleeve 104 and a connecting shaft 103, and one end of the connecting shaft 103 is connected to the pen tip sleeve 104. A slitting groove is arranged at one end of the connecting shaft 103 away from the pen tip sleeve 104, and two semi-cylindrical structures are formed by slitting through the slitting groove at one end of the connecting shaft 103 away from the pen tip sleeve 104, thereby forming two second parts 102. At the same time, an external thread 1011 is arranged at one end of the connecting shaft 103 close to the pen tip sleeve 104 in the second part 102, thereby forming a first part 101. The connecting shaft 103 is inserted from the outside of the installation opening, and the second part 102 passes through the threaded hole 201 to abut against the first hole wall 2021. Under the screwing-in action of the first part 101 and the threaded hole 201, the second part 102 is pressed into the locking hole 202. With the structural arrangement of this embodiment, when the pen tip 100 is screwed into the threaded hole 201 of the connecting shaft 103, the second part 102 will be pressed into the locking hole 202 to improve the installation stability, and it can effectively prevent the pen tip 100 from falling off between the bracket 200 and being disengaged from the pen shaft 300.

[0058] Referring to Figure 5 and Figure 6 , considering that the shaft diameter of the connecting shaft 103 is small, in order to facilitate the machining of the second part 102, in some embodiments, only one second part 102 is provided, and the second part 102 is a semi-cylindrical structure.

[0059] The above has described the present utility model in detail in combination with the embodiments, but 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 it pertains, various changes can also be made without departing from the gist of the present utility model.

Claims

1. An electronic pen, characterized in that: include: A bracket, wherein the bracket is provided with a threaded hole and a locking hole, and the threaded hole and the locking hole are connected to each other; The pen tip comprises a first part and a second part which are connected to each other, wherein the first part is threadedly connected to the hole wall of the threaded hole, and the second part is arranged in the locking hole, and the second part and the hole wall of the locking hole are interference fit.

2. The electronic pen according to claim 1, characterized in that: At least two of the second parts are provided, one end of the second part is connected to the first part, and a plurality of the second parts are arranged at intervals around the center of the first part.

3. The electronic pen according to claim 2, characterized in that: There are two second parts, and the two second parts are arranged to face each other.

4. The electronic pen according to claim 1, characterized in that: Along the direction from the first portion to the second portion, the hole wall of the locking hole includes a first hole wall and a second hole wall, the first hole wall is connected to the second hole wall, and along the direction from the first portion to the second portion, the diameter of the first hole wall gradually decreases.

5. The electronic pen according to claim 1, characterized in that: An end of the second portion away from the first portion is provided with a chamfer.

6. The electronic pen according to claim 1, characterized in that: The second part is provided with a groove, and the bracket includes a main body and a protruding part. The main body is provided with the locking hole and the threaded hole. The protruding part is connected to the hole wall of the locking hole and protrudes relative to the hole wall of the locking hole. The protruding part is inserted in the groove, and the protruding part is interference fit with the groove wall of the groove.

7. The electronic pen according to claim 6, characterized in that: The protrusion is an elastic structure, and when the protrusion is inserted into the groove, the protrusion is in a compressed and deformed state.

8. The electronic pen according to claim 1, characterized in that: Along the length direction of the pen tip, the length of the second portion is greater than the depth of the locking hole.

9. The electronic pen according to claim 1, characterized in that: Along the length direction of the pen tip, the length of the second portion is 0.1 mm to 2.2 mm, and the depth of the locking hole is 0.1 mm to 0.8 mm.

10. The electronic pen according to claim 1, characterized in that: The first part and the second part are an integrated structure.

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