Handwriting pen and electronic device

Abstract

The application discloses a handwriting pen, comprising: a pen body; a pen cap, which is rotatably arranged at one end of the pen body around an axis of the pen body; and a pen sleeve, which has a holding part, is sleeved on the pen body, and is connected with the pen body at one part and connected with the pen cap at another part. The pen cap can drive the pen sleeve to contract or expand in the radial direction of the pen body, so as to switch the holding part between a first state and a second state. When the pen sleeve is contracted in the radial direction of the pen body, the holding part is in the first state and has an outer diameter d1. When the pen sleeve is expanded in the radial direction of the pen body, the holding part is in the second state and has an outer diameter d2, and d2>d1.

Description

Technical Field

[0001] This application belongs to the field of electronic device technology, specifically relating to a stylus and an electronic device having the stylus. Background Technology

[0002] Currently, touch-screen electronic devices use styluses for touch control. There are two main types of styluses: one is thicker, providing a more comfortable grip, and attaches magnetically to the edge of the device. However, because the magnetic attraction is limited, it's prone to falling off during transport and getting lost. The other type is thinner, designed to be stored inside the device. While this is convenient, the device's thickness necessitates a very thin stylus to fit inside. However, an overly thin stylus can negatively impact the user experience, resulting in a less comfortable grip when writing. Summary of the Invention

[0003] This application aims to provide a stylus and electronic device that at least solves the problem of the non-adjustable thickness of existing writing pens.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] In a first aspect, embodiments of this application propose a stylus, comprising: a pen body; a pen cap, the pen cap being rotatably disposed at one end of the pen body about the axis of the pen body; and a pen sleeve, the pen sleeve having a grip portion, the pen sleeve being fitted onto the pen body, a portion of the pen sleeve being connected to the pen body, and another portion of the pen sleeve being connected to the pen cap, the pen cap being able to cause the pen sleeve to retract or extend radially in the pen body, so that the grip portion switches between a first state and a second state. When the pen sleeve retracts radially in the pen body, the grip portion is in the first state and its outer diameter is d1. When the pen sleeve extends radially in the pen body, the grip portion is in the second state and its outer diameter is d2, where d2 > d1.

[0006] Secondly, embodiments of this application propose an electronic device including the stylus described in the above embodiments.

[0007] In the embodiments of this application, by setting a pen cap and a pen sleeve with a grip on the pen body, the pen cap can control the grip of the pen sleeve to switch between a first state and a second state, and can adjust the radial dimension of the grip. Thus, the user can adjust the radial dimension of the grip according to the usage needs, which can provide the user with a more comfortable grip, improve the writing experience, and facilitate the storage of the stylus.

[0008] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0009] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0010] Figure 1 This is an exploded view of the structure of a stylus according to an embodiment of this application;

[0011] Figure 2 This is a schematic diagram of the internal structure of the grip portion of a stylus in a second state according to an embodiment of this application;

[0012] Figure 3 This is a schematic diagram of the internal structure of the grip portion of a stylus in a first state according to an embodiment of this application;

[0013] Figure 4 This is a partial internal structure diagram of the grip portion of a stylus in a second state according to an embodiment of this application;

[0014] Figure 5 This is a partial internal structure diagram of the grip portion of a stylus in a first state according to an embodiment of this application;

[0015] Figure 6 This is a partial structural diagram of a stylus according to an embodiment of this application;

[0016] Figure 7 This is a partial structural diagram of the buttons of a stylus according to an embodiment of this application;

[0017] Figure 8 This is a partial structural diagram of the cap of a stylus according to an embodiment of this application;

[0018] Figure 9 This is a schematic diagram of the limiting part and the mating part of a stylus according to an embodiment of this application when they are engaged.

[0019] Figure 10 This is a schematic diagram of the button structure of a stylus according to an embodiment of this application;

[0020] Figure 11 This is a schematic diagram of the structure of a stylus with buttons and mounting channels according to an embodiment of this application.

[0021] Figure label:

[0022] Stylus 100;

[0023] Pen body 10; mounting channel 11; anti-rotation rib 111;

[0024] Pen tip 20;

[0025] Pen cap 30; receiving groove 31; mating part 32;

[0026] Pen cap 40; First elastic element 41; First elastic segment 411; Second elastic segment 412; Rubber sleeve 42;

[0027] Limiting component 50; button 51; limiting part 511; first limiting surface 512; second limiting surface 513; first rod segment 514; anti-rotation groove 515; connecting segment 516; second rod segment 517; second elastic element 52;

[0028] Rotating ring 60. Detailed Implementation

[0029] Embodiments of the present invention will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0030] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this invention, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] The following is combined Figures 1 to 11 A stylus 100 according to an embodiment of this application is described.

[0034] like Figures 1 to 11 As shown, the stylus 100 according to an embodiment of this application includes: a pen body 10, a pen cap 30, and a pen sleeve 40.

[0035] Specifically, the pen cap 30 is rotatably disposed at one end of the pen body 10 around the axis of the pen body 10. The pen sleeve 40 has a grip portion. The pen sleeve 40 is fitted onto the pen body 10. A part of the pen sleeve 40 is connected to the pen body 10, and the other part of the pen sleeve 40 is connected to the pen cap 30. The pen cap 30 can drive the pen sleeve 40 to retract or extend radially in the pen body 10, so that the grip portion switches between a first state and a second state. When the pen sleeve 40 retracts radially in the pen body 10, the grip portion is in the first state and the outer diameter is d1. When the pen sleeve 40 extends radially in the pen body 10, the grip portion is in the second state and the outer diameter is d2, where d2 > d1.

[0036] In other words, such as Figures 1 to 11 As shown, the stylus 100 according to an embodiment of this application mainly includes a pen body 10, a pen cap 30, and a pen sleeve 40. The pen body 10 is formed into a columnar structure. A pen tip 20 is provided at the first end of the pen body 10. The pen cap 30 is rotatably disposed at the second end of the pen body 10 around the axis of the pen body 10. The pen sleeve 40 is sleeved on the pen body 10. The pen sleeve 40 is retractable or extendable in the radial direction of the pen body 10. The first end of the pen sleeve 40 can be connected to the pen body 10, and the second end of the pen sleeve 40 can be connected to the pen cap 30. A portion between the two ends of the pen sleeve 40 can be formed as a grip portion.

[0037] like Figures 1 to 5As shown, the second end of the pen cap 40 can be driven by the pen cap 30. Since the first end of the pen cap 40 is connected to the pen barrel, the pen cap 40 can retract or extend radially in the pen body 10 when the second end of the pen cap 30 rotates. When the pen cap 40 retracts or extends, the radial dimension of the grip changes, allowing the grip to switch between a first state and a second state. When the grip is in the first state, the radial dimension of the grip is d1, which is relatively small, making it easier to store the stylus 100 and allowing the stylus 100 to be inserted into a smaller mounting hole. When the grip is in the second state, the radial dimension of the grip is d2, where d2 > d1. The specific value of the radial dimension d2 of the grip can be adjusted by rotating the pen cap 30.

[0038] When the user is writing with the stylus 100, the radial dimension of the grip can be increased, switching the grip to the second state. A larger radial dimension of the grip provides a more comfortable grip and improves the writing experience. When storing the stylus 100, the radial dimension of the grip can be decreased, switching the grip to the first state. The overall radial dimension of the stylus 100 becomes smaller, allowing the stylus 100 to be inserted into the device body, effectively preventing the stylus 100 from being lost.

[0039] Therefore, according to the embodiment of this application, the stylus 100, by providing a pen cap 30 and a pen sleeve 40 with a grip on the pen body 10, can control the grip of the pen sleeve 40 to switch between a first state and a second state, and can adjust the radial dimension of the grip. Thus, the user can adjust the radial dimension of the grip according to the usage needs, which can provide the user with a more comfortable grip, improve the writing experience, and at the same time facilitate the storage of the stylus 100.

[0040] According to some embodiments of this application, the pen sleeve 40 includes: a first elastic member 41 and a rubber sleeve 42. The first elastic member 41 is retractable or expandable in the radial direction of the pen body 10. The first elastic member 41 is sleeved on the pen body 10. The first end of the first elastic member 41 is connected to the pen body 10, and the second end of the first elastic member 41 is connected to the pen cap 30. The pen cap 30 can drive the first elastic member 41 to retract or expand in the radial direction of the pen body 10. The second end of the first elastic member 41 is rotatable about the axis of the pen body 10 to adjust the outer diameter of the first elastic member 41. The rubber sleeve 42 is sleeved on the first elastic member 41 so that it can be driven by the first elastic member 41 to retract or expand in the radial direction of the pen body 10. At least a portion of the rubber sleeve 42 constitutes a grip portion. When the first elastic member 41 is retracted, the rubber sleeve 42 retracts in the radial direction of the pen body 10, and the grip portion is in a first state. When the first elastic member 41 is expanded, the rubber sleeve 42 expands in the radial direction of the pen body 10, and the grip portion is in a second state.

[0041] Specifically, such as Figures 1 to 5 As shown, the pen cap 40 mainly includes a first elastic element 41 and a rubber sleeve 42. The first elastic element 41 is sleeved on the pen body 10 and can contract or expand in the radial direction of the pen body 10. The first end of the first elastic element 41 is connected to the pen body 10, and the second end of the first elastic element 41 is connected to the pen cap 30. When the pen cap 30 rotates around the axis of the pen body 10, the pen cap 30 can drive the second end of the first elastic element 41 to rotate around the axis of the pen body 10.

[0042] like Figure 2 and Figure 3 As shown, when the second end of the first elastic member 41 rotates around the axis of the pen body 10 relative to the first end of the first elastic member 41, the outer diameter between the first end and the second end of the first elastic member 41 changes, causing the first elastic member 41 to contract or expand radially in the pen body 10. The grip portion is located in the area where the outer diameter of the first elastic member 41 changes, so that the radial dimension of the grip portion can be controlled when the pen cap 30 is rotated, and the state of the grip portion can be switched.

[0043] like Figure 2 and Figure 3 As shown, the rubber sleeve 42 is fitted onto the first elastic member 41. The first elastic member 41 acts as a supporting frame to support the rubber sleeve 42. Since the rubber sleeve 42 is elastic, and the radial dimension of the rubber sleeve 42 in its free state is not greater than the radial dimension of the first elastic member 41 in its free state, it can move synchronously with the first elastic member 41 and always fit against the first elastic member 41. The grip part can be set on the rubber sleeve 42. Thus, when the first elastic member 41 contracts, the rubber sleeve 42 contracts radially along with the first elastic member 41 in the pen body 10, and the grip part switches to the first state. When the first elastic member 41 extends, the rubber sleeve 42 extends radially along with the first elastic member 41 in the pen body 10, and the grip part switches to the second state.

[0044] In this embodiment, the rubber sleeve 42 can prevent the first elastic element 41 from causing harm to the user, thereby improving the user experience.

[0045] In some specific embodiments of this application, the first elastic member 41 includes a first elastic segment 411 and two second elastic segments 412. The two second elastic segments 412 are respectively disposed at both ends of the first elastic segment 411. When the grip portion is in the first state, the outer diameter of the first elastic segment 411 is equal to the outer diameter of the second elastic segment 412. When the grip portion is in the second state, the outer diameter of the first elastic segment 411 is greater than the outer diameter of the second elastic segment 412.

[0046] In other words, such as Figure 2 and Figure 3As shown, the first elastic element 41 can be divided into a first elastic segment 411 and a second elastic segment 412 located at both ends of the first elastic segment 411. The grip portion is located in the area where the first elastic segment 411 is located. When the grip portion is in the first state, the outer diameter of the first elastic segment 411 is equal to the diameter of the second elastic segment 412, making the first elastic element 41 cylindrical in this state, which facilitates the insertion of the writing pen into the device body. When the grip portion is in the second state, the outer diameter of the first elastic segment 411 is larger than the outer diameter of the second elastic segment 412. Under the elastic force of the first elastic segment 411 and the second elastic segment 412, the two second elastic segments 412 form a cone shape, which plays a transition role in the deformation of the first elastic element 41 and can improve the service life of the first elastic element 41.

[0047] Optionally, such as Figure 1 As shown, the first elastic element 41 includes at least one spring that extends spirally about the pen body 10 in the axial direction of the pen body 10.

[0048] Furthermore, the first elastic element 41 is composed of multiple springs that are staggered around the pen body 10. The multiple springs can increase the contact area with the rubber sleeve 42, improve the resistance to deformation of the grip, and enhance the user's grip.

[0049] According to one embodiment of this application, a receiving groove 31 is provided at one end of the pen cap 30 near the pen body 10. The receiving groove 31 extends circumferentially along the pen cap 30. The stylus 100 also includes a rotating ring 60, which is rotatably disposed in the receiving groove 31 about the axis of the receiving groove 31. The first end of the rubber sleeve 42 is connected to the pen body 10, and the second end of the rubber sleeve 42 is connected to the rotating ring 60. When the pen cap 30 rotates about the axis of the pen body 10, the pen cap 30 rotates relative to the rotating ring 60 so that the rubber sleeve 42 does not rotate relative to the axis of the pen body 10.

[0050] Specifically, such as Figure 2 and Figure 3 As shown, the first end of the rubber sleeve 42 is fixedly connected to the pen body 10, and the second end of the rubber sleeve 42 is fixedly connected to a rotating ring 60. The rotating ring 60 can shape the second end of the rubber sleeve 42 and prevent the second end of the rubber sleeve 42 from being excessively deformed. The outer circumferential surface of the pen cap 30 is provided with a receiving groove 31 suitable for installing the rotating ring 60. The rotating ring 60 is located in the receiving groove 31 and can rotate around the axis of the pen body 10.

[0051] In this embodiment, the rotating ring 60 cooperates with the receiving groove 31 so that the second end of the rubber sleeve 42 moves synchronously with the pen cap 30 in the axial direction of the pen body 10. At the same time, it can prevent foreign objects from entering the first elastic member 41 from between the rubber sleeve 42 and the pen cap 30. Moreover, when switching the state of the grip, the user can hold the rubber sleeve 42 and rotate the pen cap 30. The rubber sleeve 42 will not rotate with the pen cap 30 and the first elastic member 41, making it convenient to use.

[0052] According to one embodiment of this application, the stylus 100 further includes a limiting component 50, which is disposed between the pen body 10 and the pen cap 30, and the limiting component 50 cooperates with the pen cap 30 to lock or unlock the pen cap 30.

[0053] In other words, such as Figures 3 to 5 As shown, a limiting component 50 is provided between the pen body 10 and the pen cap 30. The limiting component 50 can lock or unlock the pen cap 30 by cooperating with the pen cap 30. When the limiting component 50 locks the pen cap 30, it can prevent the pen cap 30 from rotating around the axis of the pen body 10, thereby locking the state of the grip. When the limiting component 50 unlocks the pen cap 30, the pen cap 30 can rotate around the axis of the pen body 10, thereby switching the state of the grip.

[0054] In some specific embodiments of this application, the limiting component 50 includes: a button 51, which is disposed at the second end of the pen body 10 and is movable between a first position and a second position along the axial direction of the pen body 10; a pen cap 30 is rotatably disposed on the button 51 about the axis of the pen body 10; the button 51 is provided with a limiting part 511; and the pen cap 30 is provided with a mating part 32 that cooperates with the limiting part 511. When the button 51 is in the first position, the limiting part 511 is away from the second end of the pen body 10, and the limiting part 511 cooperates with the mating part 32 to limit the rotation of the pen cap 30; when the button 51 is in the second position, the limiting part 511 is close to the second end of the pen body 10, the limiting part 511 disengages from the mating part 32, and the pen cap 30 is rotatable about the axis of the pen body 10.

[0055] In other words, such as Figures 1 to 5 As shown, the limiting component 50 mainly includes a button 51. The button 51 is movably disposed at the second end of the pen body 10 between a first position and a second position along the axis of the pen body 10. The pen cap 30 is provided with a through hole along the axis of the pen body 10. The end of the button 51 away from the pen tip 20 passes through the through hole and extends to the outside of the through hole so that the user can control the movement of the button 51. Moreover, the pen cap 30 is rotatable around the axis of the pen body 10, so that the grip can be switched between the first state and the second state by rotating the pen cap 30.

[0056] like Figures 6 to 9 As shown, the button 51 is provided with a limiting part 511, and the pen cap 30 is provided with a mating part 32 that matches the limiting part 511. When the button 51 is in the first position, the limiting part 511 and the mating part 32 cooperate, and the pen cap 30 can be restricted from rotating by the cooperation of the limiting part 511 and the mating part 32, and the pen cap 30 is in a locked state. When the button 51 is in the second position, the limiting part 511 disengages from the mating part 32, and the pen cap 30 is in an unlocked state. At this time, the radial dimension of the grip can be adjusted by rotating the pen cap 30.

[0057] In some specific embodiments of this application, when the button 51 is in the second position, the pen cap 30 is movable in the first and second directions around the axis of the pen body 10. When the pen cap 30 rotates in the first direction around the axis of the pen body 10, the button 51 moves from the second position to the direction of the first position.

[0058] In other words, when button 51 is moved to the second position, pen cap 30 can move around the axis of pen body 10 in the first and second directions. The first direction can be clockwise and the second direction can be counterclockwise. When pen cap 30 rotates in the first direction, it can drive button 51 to move from the second position to the direction of the first position, so that the limiting part 511 gradually approaches the mating part 32. When button 51 is moved to the first position, the limiting part 511 and the mating part 32 cooperate to restrict pen cap 30 from rotating in the first direction.

[0059] According to some embodiments of this application, the second end of the pen body 10 is provided with an installation channel 11 extending along its axial direction. The button 51 includes: a first rod segment 514, a connecting segment 516, and a second rod segment 517. The first end of the first rod segment 514 is located in the installation channel 11 and is movable along the axial direction of the installation channel 11. The connecting segment 516 is located at the second end of the first rod segment 514. The radial dimension of the connecting segment 516 is greater than the radial dimension of the first rod segment 514. The first side of the connecting segment 516 faces the pen body 10, and the second side of the connecting segment 516 faces the pen cap 30. The second side of the connecting segment 516 is provided with a limiting part 511. The first end of the second rod segment 517 is connected to the second side of the connecting segment 516. The pen cap 30 is sleeved on the second rod segment 517, and the second end of the second rod segment 517 is located outside the pen cap 30.

[0060] Specifically, such as Figures 1 to 5 As shown, the second end of the pen body 10 is provided with an installation channel 11 extending along its axial direction. The button 51 is formed as an integral rod-shaped structure. The button 51 has a first rod segment 514, a connecting segment 516 and a second rod segment 517. The connecting segment 516 is located between the first rod segment 514 and the second rod segment 517, and the radial dimension of the connecting segment 516 is greater than the radial dimension of the first rod segment 514 and the second rod segment 517. The end of the first rod segment 514 away from the connecting segment 516 is movably disposed in the installation channel 11 between a first position and a second position along the axial direction of the pen body 10.

[0061] like Figures 6 to 9As shown, the limiting part 511 is located on the side of the connecting section 516 away from the first rod section 514, and the mating part 32 is located on the side of the pen cap 30 facing the limiting part 511. Thus, the limiting part 511 can cooperate with the mating part 32 to restrict the rotation of the pen cap 30. At the same time, the movement distance of the button 51 can be restricted in the axial direction of the pen body 10 to prevent the button 51 from falling off the mounting channel 11.

[0062] In some specific embodiments of this application, the limiting part 511 is a plurality of ratchet teeth spaced apart along the circumference of the pen body 10, and the mating part 32 is a ratchet groove adapted to the ratchet teeth.

[0063] In other words, such as Figures 6 to 9 As shown, the limiting part 511 can be formed as a plurality of ratchet teeth extending in the direction of the pen cap 30. The plurality of ratchet teeth are evenly distributed at intervals along the axial direction of the pen body 10. The mating part 32 is formed as a ratchet groove corresponding to the position of the ratchet teeth. The structure is simple. When the ratchet teeth and the ratchet groove are engaged, the rotation of the pen cap 30 can be restricted. When the ratchet teeth are disengaged from the ratchet groove, the pen cap 30 can rotate freely around the axis of the pen body 10.

[0064] According to some embodiments of this application, each ratchet tooth has a first limiting surface 512 and a second limiting surface 513. The first limiting surface 512 is a plane extending along the axial direction of the pen body 10, and the second limiting surface 513 is an inclined surface extending at an angle relative to the first limiting surface 512. When the mating part 32 is engaged with the limiting part 511, the mating part 32 is rotatable relative to the limiting part 511 about the axis of the pen body 10 in a first direction.

[0065] Specifically, such as Figures 6 to 9 As shown, each ratchet tooth is formed as a unidirectional tooth, and the ratchet tooth has a first limiting surface 512 and a second limiting surface 513 in the axial direction of the pen body 10. The first limiting surface 512 is formed as a plane extending along the axial direction of the pen body 10, and there is an included angle between the second limiting surface 513 and the first limiting surface 512. When the ratchet tooth is engaged with the ratchet groove, when a torsional force in the second direction is applied to the pen cap 30, the first limiting surface 512 abuts against the ratchet groove, thereby restricting the rotation of the pen cap 30 in the second direction.

[0066] like Figures 7 to 9 As shown, when a torsional force in the first direction is applied to the pen cap 30, the second limiting surface 513 cooperates with the ratchet groove, which can decompose the torsional force in the first direction into a rotational force and an axial force along the pen body 10. Thus, when a torsional force in the first direction is applied to the pen cap 30, the ratchet teeth can automatically disengage from the ratchet groove, so that the button 51 automatically moves from the first position to the second position without user operation, which facilitates the adjustment of the radial dimension of the grip.

[0067] In this embodiment, it should be noted that the first direction is the direction from the second limiting surface 513 to the first limiting surface 512 in the circumferential direction of a single ratchet tooth on the pen body 10; the second direction is the direction from the first limiting surface 512 to the second limiting surface 513 in the circumferential direction of a single ratchet tooth on the pen body 10.

[0068] Furthermore, the torsional force of the first elastic element 41 is a torsional force in the second direction, so that the ratchet teeth will not disengage from the ratchet groove under the action of the torsional force of the first elastic element 41 itself.

[0069] In some specific embodiments of this application, the inner wall surface of the mounting channel 11 is provided with at least one anti-rotation rib 111, the anti-rotation rib 111 extends along the axial direction of the pen body 10, and the outer wall surface of the first rod segment 514 is provided with an anti-rotation groove 515 adapted to the anti-rotation rib 111. The anti-rotation groove 515 cooperates with the anti-rotation rib 111 and is movable relative to the axis of the pen body 10.

[0070] In other words, such as Figure 10 and Figure 11 As shown, the inner wall of the mounting channel 11 is provided with an anti-rotation rib 111 extending along the axial direction of the pen body 10, and the outer wall of the first rod segment 514 is provided with an anti-rotation groove 515 to accommodate the anti-rotation rib 111. The dimension of the anti-rotation groove 515 in the axial direction of the pen body 10 is larger than the dimension of the anti-rotation rib 111 in the axial direction of the pen body 10. Thus, the anti-rotation groove 515 and the anti-rotation rib 111 cooperate to guide the first rod segment 514 in the axial direction of the pen body 10, thereby preventing the first rod segment 514 from rotating around the axial direction of the pen body 10.

[0071] Furthermore, the positions of the anti-rotation rib 111 and the anti-rotation groove 515 can be changed. The anti-rotation rib 111 and the anti-rotation groove 515 can also be provided on the inner wall of the installation channel 11. Correspondingly, the anti-rotation rib 111 and the anti-rotation groove 515 can also be provided on the outer wall of the first rod segment 514. These can be determined according to actual needs, and will not be elaborated in this embodiment.

[0072] It should be noted that when the first segment 514 is an elliptical cylinder, prism, or other non-cylindrical structure, there is no need to set a limiting structure. The first segment 514 can be prevented from rotating around the axis of the pen body 10 by its outer wall surface fitting against the inner wall surface of the mounting channel 11.

[0073] According to some embodiments of this application, the limiting component 50 further includes: a second elastic member 52, the second elastic member 52 being sleeved on the first rod segment 514, the first end of the second elastic member 52 abutting against the second end of the pen body 10, and the second end of the second elastic member 52 abutting against the connecting segment 516.

[0074] Specifically, such as Figures 1 to 5As shown, a second elastic member 52 is provided between the pen body 10 and the connecting section 516. The second elastic member 52 is formed as a linear spring. The first end of the second elastic member 52 abuts against the pen body 10, and the second end of the second elastic member 52 abuts against the connecting section 516, so that an elastic support force can be continuously applied to the connecting section 516, so that the button 51 can automatically move from the second position to the first position under the action of the elastic support force. After the radial dimension of the grip is adjusted, the limiting part 511 can automatically cooperate with the mating part 32 to lock the dimension of the grip.

[0075] like Figures 2 to 5 As shown, in the stylus 100 according to the embodiment of this application, when the grip portion is at its maximum radial dimension, the first elastic member 41 is in a free state and the first elastic member 41 is not twisted, so the friction between the pen body 10 and the button 51 is also zero. The tension F1 of the first elastic member 41 is greater than the elastic force F2 of the second elastic member 52, so the thickened state can remain unchanged.

[0076] The following describes in detail, with reference to the accompanying drawings, the operation process of the stylus 100 switching between different states according to an embodiment of this application.

[0077] like Figure 3 and Figure 5 As shown, in the first state, when the grip of the stylus 100 according to the embodiment of this application is in the first state, the pen cap 40 is in a contracted state in the radial direction of the pen body 10. At this time, the diameter of the pen cap 40 is relatively small, which makes it easy to store the stylus 100. In this state, the distance between the button 51 and the pen tip 20 is relatively far, and the first elastic member 41 is twisted, forming a large torsional force. The torsional force will eventually be converted into the frictional force between the pen body 10 and the button 51, that is, into the frictional force between the anti-rotation groove 515 and the anti-rotation rib 111. At this time, the first elastic member 41 is in a contracted state. The tension F1 of the first elastic member 41 in the axial direction of the pen body 10 is less than the elastic force F2 of the second elastic member 52 in the axial direction of the pen body 10 plus the frictional force generated by the twisting of the first elastic member 41. Under the elastic force of the second elastic member 52, the ratchet teeth on the button 51 and the ratchet groove on the pen cap 30 are in a cooperating state, so that the grip can be maintained in the first state.

[0078] When the stylus 100 needs to be used, the grip of the stylus 100 can be switched from the first state to the second state, so that the pen sleeve 40 extends radially in the pen body 10. The specific process of switching the grip from the first state to the second state is as follows: hold the rubber sleeve 42 with your hand and press the button 51. The button 51 moves relative to the pen cap 30 toward the direction of the pen tip 20, so that the ratchet teeth on the button 51 disengage from the ratchet groove on the pen cap 30. The first elastic member 41 releases its own torsional force. The second end of the first elastic member 41 and the pen cap 30 rotate in the second direction relative to the pen body 10, the rubber sleeve 42 and the rotating ring 60, so that the first elastic member 41 gradually extends. When the first elastic member 41 extends, it gradually becomes thicker and shorter. The rubber sleeve 42 also becomes thicker and shorter with the first elastic member 41. At the same time, the pen cap 30 and the rotating ring 60 gradually approach the pen body, and the button 51 moves relative to the pen body 10 toward the direction of the pen tip 20. When the grip is switched to the second state, the button 51 is released, the pressure on the button 51 is released, and the button 51 moves relative to the pen body 10 and the pen cap 30 away from the pen tip 20 under the elastic force of the second elastic member 52, so that the ratchet teeth on the button 51 cooperate with the ratchet groove on the pen cap 30 to restrict the pen cap 30 from rotating in the first direction.

[0079] like Figure 2 and Figure 4 As shown, the diameter of the pen cap 40 in the second state of the grip is relatively large, which facilitates the grip of the stylus 100 and improves user comfort. In this state, the distance between the button 51 and the pen tip 20 is relatively close, the first elastic member 41 can be in a free state, the first elastic member 41 is not twisted, and the friction between the pen body 10 and the button 51 is zero. The tension F1 of the first elastic member 41 is greater than the elastic force F2 of the second elastic member 52, and under the elastic force of the second elastic member 52, the ratchet teeth on the button 51 engage with the ratchet groove on the pen cap 30 to restrict the rotation of the pen cap 30 in the first direction, thereby allowing the grip to remain in the second state.

[0080] When the stylus 100 is finished being used or needs to be stored, the grip of the stylus 100 can be switched from the second state to the first state, causing the pen cap 40 to retract radially in the pen body 10. The specific process of switching the grip from the second state to the first state is as follows: hold the rubber sleeve 42 with one hand, and twist the pen cap 30 in the first direction with the other hand. When a torsional force in the first direction is applied to the pen cap 30, the second limiting surface 513 of the ratchet tooth engages with the ratchet groove, which can decompose the torsional force in the first direction into a rotational force in the first direction and a force along the axial direction of the pen body 10. Thus, the pen cap 30 can drive the second end of the first elastic member 41 relative to the pen body 10, the rubber sleeve 42, and the rotating ring 60 in the first direction. When the pen cap 30 rotates in the first direction, the button 51 bounces back and forth relative to the pen cap 30 along the axis of the pen body 10 under the elastic force of the second elastic member 52. When the pen cap 30 and the second end of the first elastic member 41 rotate in the first direction, the first elastic member 41 is twisted by force. The first elastic member 41 gradually becomes thinner and longer during twisting. The rubber sleeve 42 also becomes thinner and longer with the first elastic member 41. At the same time, the pen cap 30 and the rotating ring 60 gradually move away from the pen body 10. The button 51 moves away from the pen tip 20 relative to the pen body 10. When the outer diameter of the first elastic segment 411 of the first elastic member 41 is the same as the outer diameter of the two second elastic segments 412, the grip can be restored to the first state.

[0081] Embodiments of this application also provide an electronic device, which is, but not limited to, mobile phones, tablets, and any other products and components with handwriting functionality. This electronic device includes a stylus 100 from any of the above embodiments. The electronic device has a receiving hole for accommodating the stylus 100, which can be stored within the receiving hole. Since the stylus 100 according to the embodiments of this application has the aforementioned technical effects, the electronic device according to the embodiments of this application also has corresponding technical effects, namely, it can improve the user's writing experience and facilitate the storage of the stylus 100, making it less likely to be lost.

[0082] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0083] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A stylus, characterized in that, include: Pen body; A pen cap, which is rotatably disposed at one end of the pen body about the axis of the pen body; A pen sleeve, having a grip portion, is fitted onto the pen body. A portion of the pen sleeve is connected to the pen body, and another portion is connected to the pen cap. The pen cap can cause the pen sleeve to retract or extend radially relative to the pen body, thereby switching the grip portion between a first state and a second state. When the pen sleeve is retracted radially from the pen body, the grip portion is in the first state, and its outer diameter is d1. When the pen sleeve extends radially on the pen body, the grip portion is in the second state, and its outer diameter is d2, where d2 > d1; A limiting component is provided between the pen body and the pen cap, and the limiting component cooperates with the pen cap to lock or unlock the pen cap; The limiting component includes: A button is located at the second end of the pen body and is movable between a first position and a second position along the axial direction of the pen body. A pen cap is rotatably disposed on the button about the axis of the pen body. The button has a limiting part, and the pen cap has a mating part that cooperates with the limiting part. Wherein, when the button is in the first position, the limiting part is away from the second end of the pen body, and the limiting part cooperates with the cooperating part to restrict the rotation of the pen cap; When the button is in the second position, the limiting part is close to the second end of the pen body, the limiting part is disengaged from the mating part, and the pen cap can rotate around the axis of the pen body; The second end of the pen body is provided with a mounting channel extending along its axial direction, and the button includes: A first segment, the first end of which is located in the mounting channel and is movable along the axial direction of the mounting channel; A connecting segment is provided at the second end of the first rod segment. The radial dimension of the connecting segment is greater than the radial dimension of the first rod segment. The first side of the connecting segment faces the pen body, and the second side of the connecting segment faces the pen cap. The limiting part is provided on the second side of the connecting segment. The second rod segment has a first end connected to the second side of the connecting segment, the pen cap is fitted onto the second rod segment, and the second end of the second rod segment is located outside the pen cap.

2. The stylus according to claim 1, characterized in that, The pen cap includes: A first elastic element is retractable or expandable in the radial direction of the pen body. The first elastic element is sleeved on the pen body. A first end of the first elastic element is connected to the pen body, and a second end of the first elastic element is connected to the pen cap. The pen cap can drive the first elastic element to retract or expand in the radial direction of the pen body. The second end of the first elastic element can rotate around the axis of the pen body to adjust the outer diameter of the first elastic element. A rubber sleeve is fitted onto the first elastic member so that it can be driven by the first elastic member to contract or expand radially on the pen body, and at least a portion of the rubber sleeve constitutes the grip portion. When the first elastic element contracts, the rubber sleeve contracts radially in the pen body, and the grip portion is in the first state. When the first elastic element extends, the rubber sleeve extends radially in the pen body, and the grip portion is in the second state.

3. The stylus according to claim 2, characterized in that, The first elastic element includes a first elastic segment and two second elastic segments. The two second elastic segments are respectively disposed at both ends of the first elastic segment. When the gripping part is in the first state, the outer diameter of the first elastic segment is equal to the outer diameter of the second elastic segment. When the gripping part is in the second state, the outer diameter of the first elastic segment is greater than the outer diameter of the second elastic segment.

4. The stylus according to claim 2, characterized in that, The pen cap has a receiving groove at one end near the pen body, and the receiving groove extends circumferentially along the pen cap. The stylus also includes: A rotating ring is rotatably disposed in the receiving groove, the axis of which rotates around the receiving groove. The first end of the rubber sleeve is connected to the pen body, and the second end of the rubber sleeve is connected to the rotating ring. When the pen cap rotates about the axis of the pen body, the pen cap rotates relative to the rotating ring so that the rubber sleeve does not rotate relative to the axis of the pen body.

5. The stylus according to claim 1, characterized in that, When the button is in the second position, the pen cap is movable in a first direction and a second direction around the axis of the pen body. When the pen cap rotates about the axis of the pen body in the first direction, the button moves from the second position to the direction of the first position.

6. The stylus according to claim 5, characterized in that, The limiting part consists of a plurality of ratchet teeth spaced apart circumferentially along the pen body, and the mating part consists of a ratchet groove adapted to the ratchet teeth.

7. The stylus according to claim 6, characterized in that, Each of the ratchet teeth has a first limiting surface and a second limiting surface. The first limiting surface is a plane extending along the axial direction of the pen body, and the second limiting surface is an inclined surface extending at an angle relative to the first limiting surface. When the mating part is engaged with the limiting part, the mating part is rotatable in the first direction relative to the limiting part about the axis of the pen body.

8. The stylus according to claim 1, characterized in that, The inner wall of the mounting channel is provided with at least one anti-rotation rib, which extends along the axial direction of the pen body. The outer wall of the first rod segment is provided with an anti-rotation groove that matches the anti-rotation rib. The anti-rotation groove cooperates with the anti-rotation rib and is movable relative to the axis of the pen body.

9. The stylus according to claim 1, characterized in that, The limiting component also includes: The second elastic element is sleeved on the first rod segment, with the first end of the second elastic element abutting against the second end of the pen body and the second end of the second elastic element abutting against the connecting segment.

10. An electronic device, characterized in that, The stylus includes any one of claims 1-9.

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