stylus

Abstract

This utility model discloses a stylus, relating to the field of stylus technology. The stylus includes a pen shell, a pen body, and a pen tip. The pen tip and the pen body enclose a first receiving cavity, and the pen tip has a first opening communicating with the first receiving cavity. A pen refill assembly includes a pen tip and a fastener, the pen tip passing through the first opening and disposed on the fastener. An electronic control assembly is disposed in the first receiving cavity, and the pen tip is connected to the electronic control assembly. A first sealing structure is provided, through which the fastener is sealed to the pen tip and / or the electronic control assembly. A second sealing structure is provided, through which the pen tip is sealed to the pen body. The technical solution provided by this utility model is that the first sealing structure, in conjunction with the second sealing structure, provides multiple waterproof structures for the pen tip and pen body, thereby improving the waterproof performance of the stylus and extending its service life.

Description

Technical Field

[0001] This utility model relates to the field of stylus technology, and in particular to a stylus. Background Technology

[0002] Existing styluses can interact with various types of electronic devices. Internally, styluses typically contain multiple electronic components, including a circuit board, and a pen tip. Signals generated by the circuit board are transmitted to the pen tip, facilitating human-computer interaction with electronic devices. However, existing styluses have poor waterproofing, allowing liquids to easily enter the pen and damage the internal electronic components, thus affecting its lifespan. Utility Model Content

[0003] The main purpose of this invention is to provide a stylus that improves the waterproof performance of the stylus.

[0004] To achieve the above objectives, the present invention provides a stylus comprising a pen shell, a pen body, and a pen tip, wherein the pen tip is disposed at one end of the pen body, and the pen tip and the pen body together form a first receiving cavity, the pen tip having a first opening communicating with the first receiving cavity; a pen refill assembly comprising a pen refill tip and a fastener, the fastener being disposed in the first receiving cavity, the pen refill tip passing through the first opening and being disposed on the fastener; an electronic control assembly disposed in the first receiving cavity, the pen refill tip being connected to the electronic control assembly; a first sealing structure, wherein the fastener is sealed to the pen tip and / or the electronic control assembly through the first sealing structure; and a second sealing structure, wherein the pen tip is sealed to the pen body through the second sealing structure.

[0005] In one embodiment, the first sealing structure includes a first sealing member, the fastener has a second receiving cavity, the pen tip passes through the first opening and the second receiving cavity, the first sealing member is disposed on the electronic control component and abuts against the inner wall of the second receiving cavity, the first sealing member has a gradually expanding cavity, the inner diameter of the gradually expanding cavity gradually increases from the first opening toward the electronic control component.

[0006] In one embodiment, the first sealing member includes a first fixed section, a gradually expanding section, and a second fixed section connected in sequence. The first fixed section is disposed on the electronic control assembly, and the second fixed section is disposed on the electronic control assembly and abuts against the inner wall of the second receiving cavity. The outer diameter of the gradually expanding section gradually increases from the end near the fastener toward the end near the electronic control assembly.

[0007] In one embodiment, the stylus further includes a bracket, and the electronic control component includes a probe disposed on the bracket. The probe has a first snap-fit ​​groove at one end near the fastener, and the first fixing segment has a first snap-fit ​​portion that snaps into the first snap-fit ​​groove to securely connect the first fixing segment and the probe. Alternatively, the second fixing segment has a second snap-fit ​​portion, and the bracket has a second snap-fit ​​groove on one side near the fastener, with the second snap-fit ​​portion snapping into the second snap-fit ​​groove to securely connect the second fixing segment and the bracket.

[0008] In one embodiment, a preset angle is formed between the expanding section and the central axis of the pen tip, the preset angle being not less than 30 degrees and not greater than 60 degrees; and / or, the thickness of the expanding section is not less than 0.2 mm and not greater than 0.5 mm.

[0009] In one embodiment, in the axial direction of the pen body, the outer diameter of the first fixed segment is smaller than the outer diameter of the expanding segment; and / or, in the axial direction of the pen body, the outer diameter of the first fixed segment is smaller than the outer diameter of the second fixed segment.

[0010] In one embodiment, the stylus further includes an electrode, and the fastener includes a first mounting section, a first connecting section, and a second mounting section. The first mounting section, the first connecting section, and the second mounting section are connected sequentially along the axial direction of the pen body. The first mounting section is located outside the electrode. The first sealing structure is disposed on the first mounting section and abuts against the electrode. The outer diameter of the first connecting section gradually increases from the end near the first mounting section toward the end near the electronic control component. The second mounting section is threadedly connected to the electrode.

[0011] In one embodiment, the bracket further includes a first bracket and a second bracket connected to each other, the first bracket and the second bracket forming a mounting cavity for mounting the electronic control component, the first bracket and the second bracket each having a second snap-fit ​​groove; the first bracket and the second bracket each having a third snap-fit ​​portion, the second mounting section having a third snap-fit ​​groove, the third snap-fit ​​portion snapping into the third snap-fit ​​groove, so that the first bracket and the second bracket are respectively fastened to the second mounting section.

[0012] In one embodiment, the stylus further includes a pen cap, a connector, and a third sealing structure. The end of the pen body facing away from the pen tip is connected to the pen cap via the connector, and the connector is sealed to the pen body via the third sealing structure.

[0013] In one embodiment, the first sealing structure further includes a second sealing element, through which the fastener is sealed to the pen tip; and / or, the stylus further includes a fourth sealing structure, through which the connector is sealed to the pen cap.

[0014] The technical solution of this utility model uses a first sealing structure to seal the connection between the fastener and the pen tip, a first sealing structure to seal the connection between the fastener and the electronic control component, and a second sealing structure to seal the connection between the pen tip and the pen body. This prevents liquid from entering the pen body and the electronic control component through the pen tip and the connection between the pen tip and the pen body. The first sealing structure, together with the second sealing structure, provides multiple waterproof structures for the pen tip and the pen body, thereby improving the waterproof performance of the stylus. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of an embodiment of the stylus provided by this utility model;

[0017] Figure 2 A structural cross-sectional view of an embodiment of the stylus provided by this utility model;

[0018] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0019] Figure 4 A schematic diagram of a structure of the fastener and electrode in an embodiment of the stylus provided by this utility model;

[0020] Figure 5 A structural cross-sectional view of an embodiment of the pen tip and pen body in the stylus provided by this utility model;

[0021] Figure 6 An exploded structural diagram of an embodiment of the stylus provided by this utility model;

[0022] Figure 7 A schematic diagram of an embodiment of the first sealing element in the stylus provided by this utility model.

[0023] Explanation of icon numbers:

[0024] 1. Pen casing; 11. Pen body; 111. First mounting slot; 1111. First internal thread; 12. Pen tip; 121. First opening; 122. First connecting part; 1221. First external thread; 13. First receiving cavity; 2. Pen refill assembly; 21. Pen tip; 211. Tip; 212. Main body; 22. Fastener; 221. Second receiving cavity; 222. First mounting section; 223. First connecting section; 224. Second mounting section; 2241. Second external thread; 2242. Third locking slot; 3. Electronic control assembly; 31. Probe; 311. First locking 4. Groove; 4. First sealing structure; 41. First sealing element; 411. Expanding cavity; 412. First fixing section; 4121. First snap-fit ​​part; 413. Expanding section; 414. Second fixing section; 4141. Second snap-fit ​​part; 4142. Flange; 42. Second sealing element; 5. Bracket; 51. Second snap-fit ​​groove; 52. First bracket; 521. Third snap-fit ​​part; 53. Second bracket; 54. Mounting cavity; 6. Electrode; 61. Second connecting section; 62. Third connecting section; 621. Second internal thread; 7. Pen cap; 8. Connector; 9. Third sealing structure.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] Existing styluses can interact with various types of electronic devices. Internally, styluses typically contain multiple electronic components, including a circuit board, and a pen tip. Signals generated by the circuit board are transmitted to the pen tip, facilitating human-computer interaction with electronic devices. However, existing styluses have poor waterproofing, allowing liquids to easily enter the pen and damage the internal electronic components, thus affecting its lifespan.

[0030] This utility model proposes a stylus.

[0031] Please see Figures 1 to 5 In one embodiment of this utility model, the stylus includes a pen shell 1, a pen tip assembly 2, an electronic control assembly 3, a first sealing structure 4, and a second sealing structure. The pen shell 1 includes a pen body 11 and a pen tip 12. The pen tip 12 is located at one end of the pen body 11, and the pen tip 12 and pen body 11 together form a first receiving cavity 13. The pen tip 12 has a first opening 121 communicating with the first receiving cavity 13. The pen tip assembly 2 includes a pen tip 21 and a fastener 22. The fastener 22 and the electronic control assembly 3 are located within the first receiving cavity 13, with the fastener 22 positioned on the side of the electronic control assembly 3 closest to the first opening 121. The main body portion 212 of the pen tip 21 extends through the fastener 22 into the fixing groove of the electronic control assembly 3, and the pen tip 21 is connected to the electronic control assembly 3. The fastener 22 is sealed to the pen tip 12 and / or the electronic control assembly 3 via the first sealing structure 4, and the pen tip 12 is sealed to the pen body 11 via the second sealing structure.

[0032] In this embodiment, the connection between the pen tip 12 and the pen body 11 can take many forms, and no specific method is limited. For example, one end of the pen tip 12 may be provided with a first connecting portion 122, the outer wall of which may have a first external thread 1221. One end of the pen body 11 may be provided with a first mounting groove 111 corresponding to the first connecting portion 122, the inner wall of which may have a first internal thread 1111. The first external thread 1221 on the first connecting portion 122 is threadedly connected to the first internal thread 1111 of the first mounting groove 111, so that the pen tip 12 and the pen body 11 are detachably connected. To improve the sealing performance of the pen tip 12 and the pen body 11, the connection between the pen tip 12 and the pen body 11 is sealed by a second sealing structure (not shown), which may be a waterproof adhesive layer. Before assembling the pen tip 12 and the pen body 11, waterproof adhesive is applied to both the pen tip 12 and the pen body 11. When the pen tip 12 is installed on the pen body 11, the waterproof adhesive on the pen tip 12 and the pen body 11 forms a waterproof adhesive layer. The second sealing structure can also be a sealing ring. The inner wall of the first mounting groove 111 can be provided with a first internal thread 1111 and a second mounting groove (not shown) communicating with the first mounting groove 111. The first internal thread 1111 is located on the side of the second mounting groove closer to the opening of the first mounting groove 111. The second sealing structure is pre-assembled into the second mounting groove. The first connecting part 122 is screwed into the first mounting groove 111 and abuts against the second sealing structure to achieve a sealed connection between the pen tip 12 and the pen body 11. The pen tip 12 has a first opening 121 communicating with the first receiving cavity 13. The first sealing structure 4 can be a sealing ring. The first sealing structure 4 is sleeved between the end of the fastener 22 away from the electronic control component 3 and the inner wall of the pen tip 12. The first sealing structure 4 can abut against the outer wall of the fastener 22 and the inner wall of the pen tip 12 respectively, so as to seal the connection between the pen tip 12 and the fastener 22, prevent water from entering the pen tip 12 from the first opening 121 on the pen tip 12, and improve the sealing performance of the stylus.

[0033] In this embodiment, the pen tip 21 is made of a conductive material so that it can be electrically connected and conduction-enabled with the electronic control component 3. The pen tip 21 includes a tip 211 and a main body 212. The outer diameter of the main body 212 gradually decreases from the first opening 121 to the electronic control component 3, facilitating the installation of the pen tip 21. By setting the outer diameter of the main body 212 near the first opening 121 to be larger and tightly fitted with the fastener, gaps between the main body 212 and the fastener 22 are eliminated, thereby preventing liquid from entering the pen body. The main body 212 of the pen tip 21 is preferably a conductive soft rubber with good conductivity and the ability to deform to a certain extent. Several electrical connectors (not shown) are spaced apart on the outer periphery of the main body 212 near the probe 31 end of the electronic control component 3. The electrical connectors are tightly fitted with the inner sidewall of the fixing groove of the probe 31, thereby achieving electrical conduction. Fastener 22 is used for mounting the pen tip 21 and also restricts the movement of the pen tip 21 in the radial direction along the pen body 11. The electronic control assembly 3 may include a probe 31 and control components such as a main control board, making it easier for the pen tip 21 to receive signals transmitted by the circuit board through the metal probe 31. To prevent water from entering the electronic control assembly 3 from the fastener 22, a first sealing structure 4 may be provided between the fastener 22 and the electronic control assembly 3. One side of the first sealing structure 4 may be sleeved on the probe 31, and the other side of the first sealing structure 4 may abut against the inner wall of the fastener 22, so that the fastener 22 and the electronic control assembly 3 are sealed together.

[0034] The technical solution of this utility model uses a first sealing structure 4 to seal the connection between the fastener 22 and the pen tip 12, and a first sealing structure 4 to seal the connection between the fastener 22 and the electronic control component 3. The connection between the pen tip 12 and the pen body 11 is sealed by a second sealing structure. This prevents liquid from entering the pen body 11 and the electronic control component 3 through the pen tip 12 and the connection between the pen tip 12 and the pen body 11. The first sealing structure 4 can work with the second sealing structure to provide multiple waterproof structures for the pen tip 12 and the pen body 11, thereby improving the waterproof performance of the stylus.

[0035] like Figure 3 As shown, in one embodiment, the first sealing structure 4 includes a first sealing member 41, a fastener 22 having a second receiving cavity 221, a pen tip 21 passing through the first opening 121 and the second receiving cavity 221, the first sealing member 41 being disposed on the electronic control assembly 3 and abutting against the inner wall of the second receiving cavity 221, the first sealing member 41 having a gradually expanding cavity 411, the inner diameter of the gradually expanding cavity 411 gradually increasing from the first opening 121 toward the electronic control assembly 3, so that the first sealing member 41 can deform outward.

[0036] In this embodiment, the fastener 22 may have a second receiving cavity 221, one end of which has a second opening communicating with the second receiving cavity 221. The pen tip 21 is inserted into the first opening 121 and the second opening, so that at least a portion of the pen tip 21 is assembled on the fastener 22 and the pen nozzle 12, thereby improving the stability of the connection between the fastener 22 and the pen tip 21. The first sealing member 41 is provided on the electronic control assembly 3, and the outer sidewall of the first sealing member 41 abuts against the inner sidewall of the second receiving cavity 221, thereby improving the stability of the first sealing member 41 installed on the electronic control assembly 3.

[0037] In this embodiment, when the pen tip 21 is pressed, it moves along the axial direction of the pen body 11, causing the probe 31 inside the electronic control component 3 to move. During this process, the first seal 41 deforms itself to counteract the rebound force generated by the pen tip 21. The first seal 41 has a gradually expanding cavity 411, and the inner diameter of the gradually expanding cavity 411 gradually increases from the first opening 121 toward the electronic control component 3. The gradually expanding cavity 411 can increase the space for deformation within the first seal 41, making it easier for the first seal 41 to deform during the movement of the pen tip 21, thus preventing the pen tip 21 from getting stuck during its movement.

[0038] In one embodiment, the central region of the first seal 41 is a gradually expanding section 411, with fixed sections connected to both ends of the gradually expanding section 411. The gradually expanding section 411 is constructed as a cantilever connecting the two fixed sections. Since the two fixed sections have different diameters, and the wall thickness of the gradually expanding section 411 is thinner than that of the fixed sections, the resistance generated by the cantilever is smaller when the two fixed sections move axially relative to each other, thereby avoiding interference with the pressure sensor's detection value. It should be noted that the first seal 41 is a hollow component. The diameter mentioned in this application can refer to the inner or outer diameter of the fixed section, but when comparing the diameters of the two fixed sections, the same reference (i.e., both inner or both outer diameters) must be used for comparison.

[0039] like Figure 3 and Figure 7 As shown, a first sealing element 41 is fitted onto one end of the electronic control assembly 3 adjacent to the fastener 22. The first sealing element 41 includes a first fixed section 412, a gradually expanding section 413, and a second fixed section 414 connected sequentially along its axial direction. The first fixed section 412 and the second fixed section 414 are respectively sealed to the outer peripheral surfaces of the corresponding ends of the electronic control assembly 3, wherein the first fixed section 412 is located on the side of the fastener 22 near the second opening of the second receiving cavity 221, and the second fixed section 414 is located inside the second receiving cavity 221 of the fastener 22 and seals against the inner wall surface of the second receiving cavity 221. The gradually expanding section 413 is connected between the first fixed section 412 and the second fixed section 414, and the outer diameter of the gradually expanding section 413 gradually increases in the direction from the first fixed section 412 to the second fixed section 414.

[0040] In this embodiment, the first fixing segment 412 and the second fixing segment 414 can be used for positioning and installing the first seal 41, as well as for sealing the fastener 22 and the electronic control component 3. The first seal 41 is sealed to the electronic control component 3 through the first fixing segment 412, and the first seal 41 is sealed to the fastener 22 and the electronic control component 3 through the second fixing segment 414, so that the connection between the pen tip 21 and the electronic control component 3 is located inside the first seal 41, improving the overall waterproof performance of the stylus. The expanding segment 413 can be set as the part of the first seal 41 that deforms, and the expanding segment 413 is located between the first fixing segment 412 and the second fixing segment 414. The expanding segment 413 has a expanding cavity 411, and the outer diameter of the expanding segment 413 gradually increases from the end near the fastener 22 toward the end near the electronic control component 3, so that the first seal 41 can deform more easily and prevent the position of the first seal 41 from shifting off the electronic control component 3.

[0041] like Figure 3 and Figure 6 As shown, in one embodiment, the stylus further includes a bracket 5, and the electronic control component 3 includes a probe 31. The probe 31 is disposed on the bracket 5. The end of the probe 31 near the fastener 22 is provided with a first snap-fit ​​groove 311. The first fixing segment 412 is provided with a first snap-fit ​​part 4121. The first snap-fit ​​part 4121 snaps into the first snap-fit ​​groove 311 so that the first fixing segment 412 and the probe 31 are fastened together. And / or, the second fixing segment 414 is provided with a second snap-fit ​​part 4141. The bracket 5 is provided with a second snap-fit ​​groove 51 on the side near the fastener 22. The second snap-fit ​​part 4141 snaps into the second snap-fit ​​groove 51 so that the second fixing segment 414 and the bracket 5 are fastened together.

[0042] In this embodiment, to improve the stability of the connection between the first seal 41 and the probe 31, the first fixing segment 4122 is engaged with the first locking groove 311 of the probe 31 to securely connect the first fixing segment 412 and the probe 31. The thickness of the first fixing segment 412 can be greater than the thickness of the expanding segment 413, making the first fixing segment 412 more securely engaged with the probe 31. To improve the stability of the connection between the second seal 42 and the bracket 5, the second fixing segment 4141 is engaged with the second locking groove 51 of the bracket 5 to securely connect the second fixing segment 414 to the bracket 5. The thickness of the second fixing segment 414 can be greater than the thickness of both the first fixing segment 412 and the expanding segment 413, making the first fixing segment 412 more securely engaged with the bracket 5.

[0043] In this embodiment, the inner wall of the second snap-fit ​​portion 4141 protrudes towards the axis of the bracket 5 and forms an interference fit with the corresponding second snap-fit ​​groove 51 on the bracket 5, thereby ensuring the stability of the connection between the second fixing section 414 and the bracket 5. When the expanding section 413 deforms, it can effectively prevent the formation of a gap between the second snap-fit ​​portion 4141 and the second snap-fit ​​groove 51, thereby preventing liquid from seeping into the interior of the electronic control assembly 3 through the gap. The outer peripheral wall of the second snap-fit ​​portion 4141 is provided with at least one radially outwardly protruding flange 4142, which seals against the inner wall of the second receiving cavity 221 of the fastener 22. The combined effect of the interference fit between the flange 4142, the second snap-fit ​​portion 4141, and the second snap-fit ​​groove 51 forms a double sealing barrier that prevents liquid from seeping in.

[0044] In this embodiment, the first snap-fit ​​portion 4121 and the second snap-fit ​​portion 4141 can be arranged in a ring shape, and the first snap-fit ​​groove 311 and the second snap-fit ​​groove 51 can be configured as annular grooves. The first snap-fit ​​portion 4121 and the first snap-fit ​​groove 311 can be assembled by an interference fit, and the second snap-fit ​​portion 4141 and the second snap-fit ​​groove 51 can be assembled by an interference fit, thereby improving the stability of the connection between the first seal 41 and the bracket 5 and the probe 31.

[0045] like Figure 3 and Figure 7 As shown, in one embodiment, a preset angle is formed between the expanding section 413 and the central axis of the pen tip 21, the preset angle being not less than 30 degrees and not greater than 60 degrees; and / or, the thickness of the expanding section 413 is not less than 0.2 mm and not greater than 0.5 mm.

[0046] In this embodiment, the expanding section 413 may be set at an angle relative to the central axis of the first sealing member 41, and the central axis of the first sealing member 41 may coincide with the central axis of the pen tip 21, so that a preset angle is formed between the expanding section 413 and the central axis of the pen tip 21. The preset angle may be 30 degrees, 31 degrees, 32 degrees, 33 degrees, 34 degrees, 35 degrees, 36 degrees, 37 degrees, 38 degrees, 39 degrees, 40 degrees, 41 degrees, 42 degrees, 43 degrees, 44 degrees, 45 degrees, 46 degrees, 47 degrees, 48 ​​degrees, 49 degrees, 50 degrees, 51 degrees, 52 degrees, 53 degrees, 54 degrees, 55 degrees, 56 degrees, 57 degrees, 58 degrees, 59 degrees, and 60 degrees, etc. Within this range, the size of the expanding cavity 411 can be effectively adjusted by changing the preset angle, while avoiding excessive increase or decrease in the structural strength of the first seal 41, which would affect its sealing effect. The thickness of the expanding section 413 can be set to 0.2 mm, 0.3 mm, 0.4 mm, and 0.5 mm, etc. Within this range, adjusting the thickness of the expanding section 413 makes it easier for it to deform, while avoiding excessive decrease in its structural strength, which would affect the overall structural strength of the first seal 41.

[0047] like Figure 3 and Figure 7 As shown, in one embodiment, the outer diameter of the first fixed segment 412 is smaller than the outer diameter of the gradually widening segment 413 in the axial direction of the pen body 11; and / or, the outer diameter of the first fixed segment 412 is smaller than the outer diameter of the second fixed segment 414 in the axial direction of the pen body 11.

[0048] In this embodiment, in the axial direction of the pen body 11, this application sets the outer diameter of the first fixed section 412 to be smaller than the outer diameter of the gradually expanding section 413, and sets the outer diameter of the first fixed section 412 to be smaller than the outer diameter of the second fixed section 414, so that the first fixed section 412 is more adapted to the outer diameter of the connection between the probe 31 and the pen tip 21, and the second fixed section 414 is more adapted to the outer diameter of the connection between the bracket 5 and the probe 31, thereby improving the space utilization rate inside the stylus.

[0049] like Figure 3 and Figure 4As shown, in one embodiment, the stylus further includes an electrode 6, and the fastener 22 includes a first mounting section 222, a first connecting section 223, and a second mounting section 224. The first mounting section 222, the first connecting section 223, and the second mounting section 224 are connected sequentially along the axial direction of the pen body 11. The first mounting section 222 is located outside the electrode 6, and the first sealing structure 4 is disposed on the first mounting section 222 and abuts against the electrode 6. The outer diameter of the first connecting section 223 gradually increases from the end near the first mounting section 222 toward the end near the electronic control component 3. The second mounting section 224 is threadedly connected to the electrode 6.

[0050] In this embodiment, the electrode 6 may include a second connecting segment 61 and a third connecting segment 62 connected to each other. The outer diameter of the second connecting segment 61 gradually increases along the direction from the first mounting segment 222 to the second mounting segment 224, so that the shape of the second connecting segment 61 matches that of the first connecting segment 223. The inner peripheral wall of the second connecting segment 61 abuts against the outer wall of the first connecting segment 223, improving the stability of the connection between the electrode 6 and the fastener 22. The end of the second connecting segment 61 facing away from the third connecting segment 62 abuts against the first sealing structure 4, so that the first sealing structure 4 seals the connection between the electrode 6 and the fastener 22, improving the airtightness of the electrode 6 and the fastener 22. The inner wall surface of the third connecting segment 62 is provided with a second internal thread 621, and the outer wall of the second mounting segment 224 may be provided with a second external thread 2241 that matches the second internal thread 621. The second mounting segment 224 is threadedly connected to the second internal thread 621 of the third connecting segment 62 through the second external thread 2241. One end of the electrode 6 is sealed to the fastener 22 through the first sealing structure 4, and the other end of the electrode 6 is sealed to the fastener 22 through a threaded connection, which further improves the airtightness of the electrode 6 and the fastener 22 and prevents external liquid from entering the fastener 22.

[0051] In this embodiment, the first mounting section 222 and the first connecting section 223 are used for assembling and fixing the pen tip 21, improving the stability of the pen tip 21 installed in the pen casing 1. The first mounting section 222 is exposed outside the electrode 6. The first sealing structure 4 can be disposed on the first mounting section 222 and abut against the inner sidewalls of the electrode 6 and the pen tip 12, respectively, to provide a sealed connection between the pen tip 12 and the fastener 22, improving the stability of the first sealing structure 4 installed on the fastener 22. The second receiving cavity 221 can be disposed on the first connecting section 223 and the second mounting section 224. The outer sidewall of the first sealing structure 4 can abut against the inner sidewalls of the second mounting section 224 and the first connecting section 223, improving the stability of the first sealing structure 4 installed in the second receiving cavity 221.

[0052] like Figure 3 and Figure 4As shown, in one embodiment, the bracket 5 further includes a first bracket 52 and a second bracket 53 connected to each other. The first bracket 52 and the second bracket 53 enclose a mounting cavity 54 for installing the power control component 3. Both the first bracket 52 and the second bracket 53 are provided with a second snap-fit ​​groove 51. Both the first bracket 52 and the second bracket 53 are provided with a third snap-fit ​​portion 521. The second mounting section 224 has a third snap-fit ​​groove 2242. The third snap-fit ​​portion 521 snaps into the third snap-fit ​​groove 2242 so that the first bracket 52 and the second bracket 53 are respectively fastened to the second mounting section 224.

[0053] In this embodiment, the assembly method of the first bracket 52 and the second bracket 53 can be varied and is not specifically limited. The first bracket 52 and the second bracket 53 can be engaged by snap-fit. Optionally, the first bracket 52 and the second bracket 53 can be combined to form a cylindrical structure adapted to the pen body, so that the first bracket 52 and the second bracket 53 enclose a mounting cavity 54, in which the probe 31, the main control board, and other structures can be fixed. The outer side walls of the first bracket 52 and the second bracket 53 near the fastener 22 can be provided with second snap-fit ​​grooves 51, so that the second snap-fit ​​part 4141 on the second fixing section 414 snaps into the second snap-fit ​​grooves 51, thereby improving the stability of the connection between the first sealing member 41 and the first bracket 52 and the second bracket 53, and improving the sealing performance of the probe 31 with the first bracket 52 and the second bracket 53. The first bracket 52 and the second bracket 53 are also engaged with the third snap-fit ​​groove 2242 on the fastener 22 by the third snap-fit ​​part 521, respectively, to improve the stability of the connection between the fastener 22 and the first bracket 52 and the second bracket 53.

[0054] like Figure 2 and Figure 6 As shown, in one embodiment, the stylus also includes a pen cap 7, a connector 8, and a third sealing structure 9. The end of the pen body 11 facing away from the pen tip 12 is connected to the pen cap 7 via the connector 8, and the connector 8 is sealed to the pen body 11 via the third sealing structure 9.

[0055] In this embodiment, there are many ways to install the connector 8 and the end of the pen body 11 away from the tip 12, and no specific method is limited. For example, one end of the connector 8 may have a third external thread (not shown), and the end of the pen body 11 away from the tip 12 may have a third internal thread (not shown). The third external thread and the third internal thread are connected to allow the connector 8 to be detachably mounted on the pen body 11. A pen cap 7 is installed on the other end of the connector 8, making it easier to install the pen cap 7 on the pen body 11. A third sealing structure 9 may also be provided at the connection between the connector 8 and the pen body 11. The third sealing structure 9 may be a sealing ring to improve the sealing performance between the connector 8 and the pen body 11. The third sealing structure 9 may also have a hot melt adhesive layer. Before assembling the connector 8 and the pen body 11, hot melt adhesive is applied to both the connector 8 and the pen body 11, and the connector 8 is then installed on the pen body 11, so that the hot melt adhesive on the connector 8 and the pen body 11 forms a waterproof layer.

[0056] like Figure 3 As shown, in one embodiment, the first sealing structure 4 further includes a second sealing element 42, through which the fastener 22 is sealed to the pen tip 12; and / or, the stylus further includes a fourth sealing structure, through which the connector 8 is sealed to the pen cap 7.

[0057] In this embodiment, the second sealing element 42 can be configured as a sealing ring. The second sealing element 42 is disposed on the fastener 22, and its outer peripheral wall abuts against the inner sidewall of the pen tip 12, thereby improving the sealing performance between the fastener 22 and the pen tip 12 and preventing liquid from entering the pen tip 12 from the first opening 121. A fourth sealing structure (not shown) can also be provided at the connection between the connector 8 and the pen cap 7. The fourth sealing structure can be configured as a sealing ring to improve the sealing performance between the connector 8 and the pen cap 7. The fourth sealing structure can also be configured with an AB adhesive layer. Before assembling the connector 8 and the pen cap 7, AB adhesive is applied to the connector 8 and the pen cap 7 respectively, and the pen cap 7 is installed on the connector 8, so that the AB adhesive on the connector 8 and the pen cap 7 forms a waterproof layer, thereby improving the sealing performance between the connector 8 and the pen cap 7.

[0058] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A stylus, characterized in that, include: A pen case includes a pen body and a pen tip, the pen tip being disposed at one end of the pen body, the pen tip and the pen body forming a first receiving cavity, and the pen tip having a first opening communicating with the first receiving cavity; A pen refill assembly includes a pen refill tip and a fastener, wherein the fastener is disposed in the first receiving cavity, and the pen refill tip passes through the first opening and is disposed in the fastener; An electronic control component is disposed in the first receiving cavity, and the pen tip is connected to the electronic control component; A first sealing structure is provided, wherein the fastener is sealed to the pen tip and / or the electronic control component via the first sealing structure. The second sealing structure is used to seal the pen tip to the pen body.

2. The stylus as described in claim 1, characterized in that, The first sealing structure includes a first sealing element, the fastener has a second receiving cavity, the pen tip passes through the first opening and the second receiving cavity, the first sealing element is disposed on the electronic control component and abuts against the inner wall of the second receiving cavity, the first sealing element has a gradually expanding cavity, and the inner diameter of the gradually expanding cavity gradually increases from the first opening toward the electronic control component.

3. The stylus as described in claim 2, characterized in that, The first sealing element includes a first fixed section, a gradually expanding section, and a second fixed section connected in sequence. The first fixed section is disposed on the electronic control component, and the second fixed section is disposed on the electronic control component and abuts against the inner wall of the second receiving cavity. The outer diameter of the gradually expanding section gradually increases from the end near the fastener toward the end near the electronic control component.

4. The stylus as described in claim 3, characterized in that, The stylus also includes a bracket, and the electronic control component includes a probe. The probe is disposed on the bracket, and a first snap-fit ​​groove is provided at one end of the probe near the fastener. The first fixing section is provided with a first snap-fit ​​part, and the first snap-fit ​​part snaps into the first snap-fit ​​groove so that the first fixing section and the probe are fastened together. And / or, the second fixing section is provided with a second snap-fit ​​part, and the bracket is provided with a second snap-fit ​​groove on the side near the fastener, and the second snap-fit ​​part snaps into the second snap-fit ​​groove so that the second fixing section is fastened to the bracket.

5. The stylus as described in claim 3, characterized in that, The gradually widening section forms a preset angle with the central axis of the pen tip, and the preset angle is not less than 30 degrees and not greater than 60 degrees. And / or, the thickness of the gradually expanding section is not less than 0.2 mm and not more than 0.5 mm.

6. The stylus as described in claim 3, characterized in that, In the axial direction of the pen body, the outer diameter of the first fixed section is smaller than the outer diameter of the gradually expanding section; and / or, in the axial direction of the pen body, the outer diameter of the first fixed section is smaller than the outer diameter of the second fixed section.

7. The stylus as described in claim 4, characterized in that, The stylus also includes electrodes. The fastener includes a first mounting section, a first connecting section, and a second mounting section. The first mounting section, the first connecting section, and the second mounting section are connected sequentially along the axial direction of the pen body. The first mounting section is located outside the electrodes. The first sealing structure is disposed on the first mounting section and abuts against the electrodes. The outer diameter of the first connecting section gradually increases from the end near the first mounting section toward the end near the electronic control component. The second mounting section is threadedly connected to the electrodes.

8. The stylus as described in claim 7, characterized in that, The bracket also includes a first bracket and a second bracket connected to each other. The first bracket and the second bracket together form a mounting cavity for mounting the electronic control component. Both the first bracket and the second bracket are provided with a second snap-fit ​​groove. Both the first bracket and the second bracket are provided with a third snap-fit ​​portion. The second mounting section has a third snap-fit ​​groove. The third snap-fit ​​portion snaps into the third snap-fit ​​groove so that the first bracket and the second bracket are respectively fastened to the second mounting section.

9. The stylus as described in claim 1, characterized in that, The stylus also includes a pen cap, a connector, and a third sealing structure. The end of the pen body facing away from the pen tip is connected to the pen cap through the connector, and the connector is sealed to the pen body through the third sealing structure.

10. The stylus as described in claim 9, characterized in that, The first sealing structure further includes a second sealing element, and the fastener is sealed to the pen tip through the second sealing element; And / or, the stylus further includes a fourth sealing structure, through which the connector is sealed to the pen cap.

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