WO2020024189A1

WO2020024189A1 - Stylus

Info

Publication number: WO2020024189A1
Application number: PCT/CN2018/098135
Authority: WO
Inventors: 史弈俊
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2018-08-01
Filing date: 2018-08-01
Publication date: 2020-02-06
Also published as: CN112823329A

Abstract

Provided is a stylus (100), comprising a cylinder (10) and a refill loading mechanism (30) provided in the cylinder (10). The refill loading mechanism (30) comprises a stylus head connecting sleeve (31), a stylus tube (33) for loading a lead refill (20), and a refill ejection control device (35) arranged between the stylus head connecting sleeve (31) and the stylus tube (33). The refill ejection control device (35) controls the lead refill (20) so same extends from the stylus head connecting sleeve (31). The stylus tube (33) and the refill ejection control device (35) are both made of an electrically conductive material, and the lead refill (20) is electrically connected to the stylus tube (33) via the refill ejection control device (35). The stylus (100) is easy to use and improves the user experience of writing and drawing with the lead refill (20).

Description

Stylus

Technical field

The present application relates to the technical field of stylus pens, and in particular, to a stylus pen.

Background technique

The existing stylus can only save electronic handwriting on the touchpad, and because the surface of the touchpad is usually a hard material such as glass when writing, there is no tactile sensation when writing on paper, which brings a poor user experience. good. For a stylus capable of writing on a paper-lined stylus board, an ink pen core is generally installed, and real writing and electronic writing are generated at the same time by holding the stylus pen to write on the stylus board. However, the existing stylus is usually equipped with an ink refill, which cannot satisfy a user's painting experience using a pencil refill.

Summary of the invention

The present application provides a stylus pen that can be installed with a pencil lead and is easy to operate.

An embodiment of the present application provides a stylus. The stylus pen includes a pen barrel and a refill loading mechanism provided in the pen barrel, and the refill loading mechanism includes a pen tip connection sleeve, a pen tube loaded with a pencil core, and a pen tip connection sleeve and the pen tube. The core-out control device controls the pencil core to extend out of the nib connection sleeve, and the pen tube and the core-out control device are made of a conductive material, and the pencil core passes through The core-out control device is electrically connected to the pen tube.

The stylus pen provided in the embodiment of the present application is provided with a refill loading mechanism, and the lead-out control device controls the pencil lead to extend out of the pen tip connection sleeve. The pen tube is made of conductive material, and the pencil lead is connected with the pen tube through the core-out control device It is electrically connected so that the pencil lead is always in the current conducting state, which is convenient to use and improves the user's experience of writing and drawing with the pencil lead.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative labor.

FIG. 1 is a schematic diagram of a three-dimensional structure of a stylus pen according to a first embodiment of the present application.

FIG. 2 is a schematic three-dimensional exploded structure diagram of the stylus pen in FIG. 1.

FIG. 3 is an assembly diagram of the refill loading mechanism in FIG. 1.

FIG. 4 is a schematic exploded perspective view of the refill loading mechanism in FIG. 3.

FIG. 5 is a cross-sectional view of the lead refill loading mechanism of FIG. 3 taken along the line V-V.

6 is a cross-sectional view of the stylus pen taken along line VI-VI in FIG. 1.

FIG. 7 is a schematic exploded perspective view of a stylus pen provided in a second embodiment of the present application.

FIG. 8 is a perspective structural diagram of the refill loading mechanism in FIG. 7.

FIG. 9 is a schematic exploded perspective view of the refill loading mechanism in FIG. 8.

Fig. 10 is a cross-sectional view taken along line X-X in a first use state of the refill loading mechanism in Fig. 8.

11 is a cross-sectional view taken along line X-X of a second use state of the lead refill loading mechanism in FIG. 8.

detailed description

In the following, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the implementations in this application, all other implementations obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

In the description of the embodiments of the present application, it should be understood that the orientation or position relationship indicated by the terms “top”, “bottom”, “head”, and “tail” is based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, and does not imply or indicate that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application.

Please refer to FIG. 1 to FIG. 6 together, which is a stylus pen provided in the first embodiment of the present application. The stylus pen 100 includes a pen barrel 10 and a refill loading mechanism 30 provided in the pen barrel 10. The refill loading mechanism 30 includes a pen tip connecting sleeve 31, a pen tube 33 for loading the pencil lead 20, and a core ejection control device 35 disposed between the pen tip connecting sleeve 31 and the pen tube 33. The core-out control device 35 controls the pencil core 20 to extend out of the nib connection sleeve 31. Both the pen tube 33 and the core-out control device 35 are made of a conductive material, and the pencil core 20 passes through the core-out control device. 35 is electrically connected to the pen tube 33.

Optionally, the stylus pen 100 has a central axis L. Both the pen tip connecting sleeve 31 and the pen tube 33 can slide along the central axis L of the stylus pen 100 through the core control device 35. Specifically, the pen tip connecting sleeve 31 is pressed, so that the pen tip connecting sleeve 31 slides along the central axis L of the stylus pen 100 toward the pen tube 33, so that the pencil lead 20 automatically protrudes from the pen tip connecting sleeve 31. The pen tube 33 is pressed, so that the pen tube 33 slides along the center axis L of the stylus pen 100 toward the tip sleeve 312, so that the lead of the pencil lead 20 is released. The stylus pen 100 provided in the embodiment of the present application has a function of bidirectionally controlling the lead out of the pencil lead 20 and is convenient to use.

Please refer to FIGS. 3 to 4 again. In this embodiment, the pen tip connection sleeve 31 is connected to the core-out control device 35. The nib connecting sleeve 31 includes a damping member 311 for the pencil lead 20 to pass through and fasten the pencil lead 20, and a tip sleeve 312 sleeved on the damping member 311. A stopper 3111 is provided in the middle of the damping member 311. In this embodiment, the stopper 3111 has a circular ring shape. The tip sleeve 312 is a hollow cylindrical structure. The tip of the tip sleeve 312 defines an opening 3121 through which the damping member 311 passes. The diameter of the opening 3121 is smaller than the outer diameter of the stopper 3111 of the damping member 311, so that the stopper 3111 of the damping member 311 is held in the tip sleeve 312. The barrel wall of the tip sleeve 312 is provided with two opposite guide grooves 3122 along its length direction. In other embodiments, two opposite guide sliders are disposed on the cylinder wall of the tip sleeve 312 along its length direction. It can be understood that the number and setting positions of the guide chute and the guide slider can be designed according to actual conditions, and are not limited herein. The inner wall of the tip sleeve 312 is further provided with a limiting step surface 3123 for holding the core-out control device 35.

The stylus pen 100 further includes a pressure sensor 50 electrically connected to the pen tube 33. One end of the pen tube 33 is screwed out of the core control device 35, and the other end of the pen tube 33 is in contact with the pressure sensor 50. The pen tube 33 has a hollow cylindrical structure. A guide post 331 is provided at one end of the pen tube 33 near the pressure sensor 50. The pen tube 33 is electrically connected to the pressure sensor 50 through a guide post 331. An end of the pen tube 33 near the core-out control device 35 is provided with an internal thread 332.

The core-out control device 35 includes a locking member 351, an unlocking member 353 connected to the locking member 351, and a locking sleeve 355 sleeved on the locking member 351. In this embodiment, the locking member 351 is connected to the pen tube 33 through an unlocking member 353. The locking member 351 includes a first locking member 3511 and a second locking member 3512 that can be engaged with each other. The first locking member 3511 and the second locking member 3512 are jointly enclosed to form a limiting step surface 3518. Tightening groove 3519. The pencil lead 20 is located between the first locking member 3511 and the second locking member 3512.

In this embodiment, the tensioning groove 3519 includes a first tensioning groove 3516 and a second tensioning groove 3517, and a connection between the first tensioning groove 3516 and the second tensioning groove 3517 forms a generally inverted cone shape. Limit step surface 3518. When the first locking member 3511 is engaged with the second locking member 3512, the pencil lead 20 is accommodated in the first tension groove 3516, and the head of the pencil lead 20 abuts against the limiting step surface 3518. At this time, the pencil lead 20 is clamped between the first locking member 3511 and the second locking member 3512; when the first locking member 3511 and the second locking member 3512 are opened, the pencil lead 20 passes through the first tensioning groove 3516 and the first Two tension grooves 3517. The diameter of the first tension groove 3516 is larger than the diameter of the pencil lead 20, and the diameter of the second tension groove 3517 is equal to the diameter of the pencil lead 20.

In this embodiment, the first locking member 3511 is engaged with the second locking member 3512 through a locking spring 3513. The first locking member 3511 includes a substantially semi-cylindrical connecting cylinder 3514 and two spaced-apart stop rings 3515 provided outside the connecting cylinder 3514. The lock spring 3513 is sleeved between the two stop rings 3515.

In other embodiments, a through groove is formed in the first locking member 3511 along the axial direction for the pencil lead 20 to pass through, and an inner wall of the through groove is formed with a protrusion between the two stop rings 3515. When the first locking member 3511 is engaged with the second locking member 3512, the pencil lead 20 is accommodated in the through groove, and the head of the pencil lead 20 protrudes upward. At this time, the pencil lead 20 is held in the first lock. Between the stopper 3511 and the second lockout 3512; when the first lockout 3511 and the second lockout 3512 are opened, the pencil lead 20 passes through the through slot.

The structure of the second locking member 3512 is the same as the structure of the first locking member 3511. Therefore, the size, name, and positional relationship of each component included in the second locking member 3512 can refer to the first locking member 3511. I will not repeat them here.

The unlocking member 353 is a hollow cylindrical structure. One end of the unlocking member 353 is fixedly connected to the pen tube 33, and the other end of the unlocking member 353 is connected to the locking member 351. Specifically, the unlocking member 353 defines a through hole 3530 in the axial direction. The end of the connecting cylinder 3514 of the locking member 351 is inserted into the through hole 3530 of the unlocking member 353. The outer peripheral surface of the unlocking member 353 adjacent to the pen tube 33 is provided with an external thread 3531 screwed with the inner thread 332 of the pen tube 33 to achieve a fixed connection between the pen tube 33 and the unlocking member 353. It can be understood that, in other embodiments, the pen tube 33 and the unlocking member 353 may also be connected by a snap connection, a magnetic connection, or by using other connection members, which is not limited herein. An end of the unlocking member 353 adjacent to the pen tube 33 is provided with a stop ring 3532. A washer 354 is provided between the locking member 351 and the unlocking member 353, and the washer 354 is sleeved on the unlocking member 353. A spring 3533 is sleeved between the washer 354 and the stop ring 3532 of the unlocking member 353.

The locking sleeve 355 is a hollow cylindrical structure. An outer peripheral surface of an end of the locking sleeve 355 near the pen tube 33 is provided with an external thread 3551. The locking sleeve 355 is movably connected to the tip sleeve 312. Specifically, the outer wall of the locking sleeve 355 is provided with a guide slider 3552 that passes through the guide groove 3122 of the corresponding tip sleeve 312. The unlocking member 353 is movably received in the locking sleeve 355, that is, the guide slider 3552 of the locking sleeve 355 can slide in the guide groove 3122 of the tip sleeve 312. It can be understood that, in other embodiments, the tip sleeve 312 is provided with a plurality of guide sliders along the length direction, and the locking sleeve 355 is provided with a plurality of guide grooves corresponding to the guide slider.

5, the inner wall of the locking sleeve 355 adjacent to the damping member 311 is provided with a protrusion 3553 for holding the locking spring 3513, so that the locking spring 3513 is sandwiched between the stop ring 3515 and the protrusion near the pen tube 33. From 3553. An end of the inner wall of the locking sleeve 355 near the damping member 311 is provided with a substantially tapered sliding surface 3554, so that when the locking member 351 moves toward one end of the damping member 311, the first locking member 3511 and the second lock can be provided. The opening of the stop 3512 provides space. The inner wall of the locking sleeve 355 adjacent to the unlocking member 353 is provided with a protrusion 3555 for holding the washer 354, so that the spring 3533 is sandwiched between the washer 354 and the stop ring 3532 of the unlocking member 353.

The core-out control device 35 further includes a spring 352 sleeved on the damping member 311 and a locking member 356 fixedly connected to the locking sleeve 355. The spring 352 is disposed between the damping member 311 and the locking sleeve 355 and abuts against the end of the locking sleeve 355. Specifically, the spring 352 has a substantially inverted hammer shape. The spring 352 includes a first end 3521 and a second end 3522 opposite to each other. The first end 3521 of the spring 352 abuts the stopper 3111 of the damping member 311, and the second end 3522 of the spring 352 abuts the end of the locking sleeve 355 facing away from the locking member 356. The diameter of the first end 3521 of the spring 352 is smaller than the diameter of the second end 3522 of the spring 352, and the maximum diameter of the locking member 351 is smaller than the diameter of the second end 3522 of the spring 352 to achieve the locking of the locking member 351 when it is extended The sleeve 355 can be deployed within the second end 3522 of the spring 352.

The inner wall of the locking member 356 is provided with an internal thread 3561 that is screwed with the external thread 3551 of the locking sleeve 355. The locking member 356 defines an opening 3562 through which the pen tube 33 passes in the axial direction. The diameter of the opening 3562 is smaller than the outer diameter of the stop ring 3532 of the unlocking member 353, so that the unlocking member 353 is caught in the opening 362.

It can be understood that in this embodiment, the pen tube 33, the locking member 351, the unlocking member 353, the locking sleeve 355, and the locking member 356 are all made of a conductive material or the surface of each element body is coated with a conductive material. In order to achieve the pencil lead 20 and the pen tube 33 to achieve conductive communication. The conductive material is, for example, but is not limited to brass. The damping member 311 and the tip sleeve 312 are made of a plastic material, which can save costs and generate a damping force between the damping member 311 and the pencil lead 20. The gasket 354 is made of a harder material, such as stainless steel.

Please refer to FIG. 2 again. The pen holder 10 further includes a connecting frame 11, an outer tube 12 sleeved on the connecting frame 11, a pen head 13 detachably connected to one end of the outer tube 12, and a detachable connection to the outer tube 12. One end of the pen tip 14. The circuit board 40 is disposed on the connecting frame 11, and the refill loading mechanism 30 is inserted into the connecting frame 11. The connecting frame 11 includes a first connecting frame 111 and a second connecting frame 112 that can be fastened to each other. The refill loading mechanism 30 is located between the first connecting frame 111 and the second connecting frame 112. The circuit board 40 is disposed on the first connecting frame. 111 on.

The first connection bracket 111 includes a support plate 1111 for supporting the circuit board 40, two extension plates 1112 extending vertically from the opposite sides of the self-support plate 1111 toward the same side, and several extension plates 1112 connected between the two extension plates 1112. Strengthen plate 1113. The two opposite ends of the support plate 1111 are respectively provided with latching holes 1114, and each latching hole 1114 extends to a corresponding extension plate 1112. A plurality of positioning posts 1115 are protruded from a side of the supporting plate 1111 facing away from the reinforcing plate 1113. Receiving ports 1116 are respectively formed in the middle of these reinforcing plates 1113.

The second connecting frame 112 includes a generally semi-circular connecting cylinder 1121, a plurality of reinforcing plates 1122 disposed in the connecting cylinder 1121, and a plurality of clamping blocks 1123 corresponding to the engaging holes 1114 of the first connecting frame 111. A receiving port 1124 is opened in the middle of each of the reinforcing plates 1122. When the first connection bracket 111 is fastened to the second connection bracket 112, a plurality of clamping blocks 1123 are respectively locked in the corresponding connection holes 1114, the receiving opening 1116 of the first connecting bracket 111 and the receiving opening of the second connecting bracket 112. 1124 forms a receiving hole for receiving the pen tube 33 of the refill loading mechanism 30.

In this embodiment, a first internal thread 121 is provided on one end of the outer cylinder 12 adjacent to the pen tip 13, and a second internal thread 122 is provided on the other end of the outer cylinder 12 remote from the pen tip 13. The pen tip 13 is provided with an external thread 131 screwed with the first inner thread 121, and the pen tip 13 is further provided with a pen hole 132 penetrating the outer cylinder 12. An external thread 141 is also provided on the outer peripheral surface of the pen tip 14 to be screwed with the second internal thread 122. A spring 142 is provided in the pen tip 14. The spring 142 is used to press the power source 60.

In other embodiments, the pen head 13 and the head of the outer tube 12 may also be connected by means of a snap connection, a magnetic connection, or the like. For example, a plurality of elastic hooks are provided around the head of the outer tube 12, and the pen head 13 is provided with a plurality of card holes corresponding to the elastic hooks; or a magnet is provided on the pen head 13, and a head is provided on the head of the outer tube 12. Corresponding piece of iron.

In other embodiments, the pen tip 14 and the tail of the outer cylinder 12 may also be connected by means of a snap connection, a magnetic connection, or the like. For example, a plurality of elastic hooks are provided around the tail of the outer tube 12, and the pen end 14 is provided with a plurality of card holes corresponding to the elastic hooks; or a magnet is provided on the pen end 14 and a contact is provided on the tail of the outer tube 12. Corresponding piece of iron.

The circuit board 40 is provided with a controller 41 and a signal generator 42 electrically connected to the controller 41. The circuit board 40 defines a plurality of positioning holes 401 corresponding to the positioning posts 1115 of the first connection bracket 111. When the circuit board 40 is positioned on the support plate 1111 of the first connection bracket 111, a plurality of positioning posts 1115 are respectively latched into the corresponding positioning holes 401. The stylus pen 100 further includes a power source 60 disposed in the pen holder 10. The power source 60 provides power to the circuit board 40, the controller 41, and the signal generator 42. The circuit board 40 is provided with conductive terminals that can be electrically connected to the power source 60. A pressure sensor 50 is provided on the side of the circuit board 40 between the power source 60 and the refill loading mechanism 30. The pressure sensor 50 is electrically connected to the controller 41 on the circuit board 40. The pen tube 33 of the refill loading mechanism 30 can abut the pressure sensor 50. When the pressure sensor 50 is pressed, the pressure sensor 50 sends a signal to the controller 41. The controller 41 receives the signal and controls the signal generator 42 to send a signal to the external device. The external device receives the signal and displays the signal corresponding to the received signal. Thick handwriting.

The external device is a display device. After the display device receives the signal output by the signal generator 42, it selects and displays the corresponding preset handwriting through the APP on the display device. The signal generator 42 is a Bluetooth radio frequency transmitter. In other embodiments, the signal generator 42 may also be WIFI, ZIGBEE or other radio frequency transmitters.

Please refer to FIGS. 1 to 6 together. When assembling, the spring 352 is sleeved on the damping member 311 and the damping member 311 is sleeved on the tip sleeve 312 so that the damping member 311 is exposed on the tip sleeve 312. Connect the locking sleeve 355 to the tip sleeve 312, that is, the guide slider 3552 of the locking sleeve 355 passes through the guide groove 3122 of the tip sleeve 312. At this time, the end of the locking sleeve 355 abuts against the spring 352. Under the reaction force of the spring 352, the guide slider 3552 of the locking sleeve 355 is located on the top of the guide groove 3122. The lock spring 3513 is sleeved on the first lock member 3511 and the second lock member 3512 so that the first lock member 3511 and the second lock member 3512 are engaged with each other. An end of the locking member 351 near the damping member 311 is housed in the locking sleeve 355, and an end of the locking member 351 away from the damping member 311 is locked in the through hole 3530 of the unlocking member 353. It can be understood that the washer 354 and the spring 3533 can be sleeved on the unlocking member 353 in advance. The internal thread 332 of the pen tube 33 is screwed with the external thread 3531 of the unlocking member 353. The locking member 356 is passed through the pen tube 33 and locked on the locking sleeve 355 so as to realize the assembly of the pen core loading mechanism 30.

The pen tube 33 of the pen core loading mechanism 30 mounted with the pencil core 20 is connected to the pressure sensor 50. At this time, the pencil core 20 and the pressure sensor 50 are electrically connected. The first connecting frame 111 and the second connecting frame 112 are fastened to each other, and the refill loading mechanism 30 is sandwiched between the first connecting frame 111 and the second connecting frame 112. The circuit board 40 is mounted on the first connection bracket 111. The outer tube 12 is sleeved on the connecting frame 11, and the connecting frame 11 is positioned in the outer tube 12. Then, the power source 60 is installed at the tail of the outer tube 12, and then the pen tip 14 is connected to the tail of the outer tube 12. The power source 60 is electrically connected to the circuit board 40 through conductive terminals. The pen tip 13 is connected to the head of the outer cylinder 12.

When the pencil lead 20 needs to be used, the pen tip 13 is twisted to separate the pen tip 13 from the outer cylinder 12 and the pen lead loading mechanism 30 is removed. The pencil lead 20 is inserted into the pen tube 33 so that the pencil lead 20 passes through the unlocking member 353 and abuts against the limiting step surface 3518 of the locking member 351, that is, the pencil lead 20 is received in the first tensioning groove 3516. The pen tube 33 is pressed, so that the pen tube 33 drives the unlocking member 353 to slide toward the locking member 351, and the guide slider 3552 of the locking sleeve 355 slides from the top end of the sliding groove 322 toward the bottom end of the sliding groove 322. At this time, the lock springs 3513, 3533, and 352 are all compressed, and the lock member 351 protrudes from the lock sleeve 355 to separate the first lock member 3511 and the second lock member 3512, so that the pencil lead 20 can pass through第二 tensioning slot 3517. It can be understood that, because the locking member 351 has a one-way locking function, the pencil lead 20 can continue to move forward after being locked, but cannot move backward. After the pen tube 33 is stopped from being pressed, the lock springs 3513, 3533, and 352 return to deformation, the lock member 351 is housed in the lock sleeve 355, and the pencil lead 20 is locked. Press the pen tube 33 again with a small force, so that the pen tube 33 and the locking sleeve 355 have a relative compression displacement. At this time, the locking member 351 is not pushed out, that is, the pencil lead 20 is held by the first locking member. Between 3511 and the second locking member 3512, the pencil core 20 and the locking sleeve 355 move forward along the damping member 311 as a whole. At this time, the damping member 311 and the hole axis of the pencil core 20 cooperate with a certain damping force, so When the pen tube 33 is reset, the damping member 311 pulls the pencil core 20 forward by the damping force between the damping member 311 and the pencil core 20, thereby realizing the pencil out of the core. It can be understood that the amount of lead output is the relative displacement D1 of the pen tube 33 and the locking sleeve 355 (that is, the distance between the locking member 356 and the tip sleeve 312). Thereafter, the refill loading mechanism 30 can be installed back into the outer cylinder 12 of the stylus 200, and the pen tip 13 can be connected to the outer cylinder 12, and the damping member 311 is exposed through the opening 132 of the pen tip 13.

When the pencil lead 20 is worn, the pen tube 33 is relatively fixed, and the damping member 311 is pressed with a small force, so that there is a relative displacement between the damping member 311 and the pencil lead 20. At this time, the spring 352 is compressed. It can be understood that, because the spring 352 is much smaller than the spring 3533, the locking member 351 is not pushed out at this time, that is, the first locking member 3511 is engaged with the second locking member 3512, and the pencil core 20 faces the damping member 211. Before moving. At this time, there is a certain damping force between the damping member 211 and the pencil core 20, so when the pressing of the damping member 211 is stopped, the spring 352 recovers and the damping member 211 is reset. The damping force between the cores 20 pulls the pencil core 20 forward, thereby realizing the pencil out of the core. It can be understood that the amount of lead out is the amount of compression displacement of the damping member 211.

Please refer to FIG. 7 to FIG. 11, which are schematic diagrams of the three-dimensional structure of the stylus pen provided by the second embodiment of the present application. The structure of the stylus pen 200 provided in the second embodiment is similar to that of the stylus pen 100 provided in the first embodiment. Therefore, the size, name, and positional relationship of each element included in the stylus 200 can refer to the stylus. 100, will not repeat them here. The difference is that, in the second embodiment, the structure of the refill loading mechanism 30 a of the stylus pen 200 is different from the refill loading mechanism 30 in the first embodiment.

Specifically, in this embodiment, the pen core loading mechanism 30a includes a pen tip connecting sleeve 31a, a pen tube 33a for loading the pen core, and a core ejection control device 35a provided between the pen tip connecting sleeve 31a and the pen tube 33a. The pen tube 33a is electrically connected to the pressure sensor 50, and the lead-out control device 35a controls the pencil lead 20 to extend out of the pen tip connection sleeve 31a. The pencil lead 20 is electrically connected to the pen tube 33a through the lead-out control device 35a.

In this embodiment, the pen tip connection sleeve 31a is fixedly connected to the core-out control device 35a. The nib connection sleeve 31 a includes a damping member 311 a through which the pencil lead 20 is fastened and fastened, and a tip sleeve 312 a sleeved on the damping member 311 a. The nib 13 is sleeved on the tip sleeve 312a. The tip sleeve 312a has a stepped cylindrical wall inside, and the damping member 311a is clamped in the tip sleeve 312a. In this embodiment, both the damping member 311a and the tip sleeve 312a are made of a silicone material. The damping member 311a has a substantially inverted tapered shape. The head of the tip sleeve 312a is provided with a heart protection tube 3121a, and the inner wall of the tail portion of the tip sleeve 312a is provided with an internal thread 3122a. The tip sleeve 312a is provided with an annular protrusion 3123a adjacent to the inner wall of the damping member 311a. A limited space 3124a is formed between the protrusion 3123a and the damping member 311a to limit the telescopic range of the core control device 35a.

The pen tube 33a has a hollow cylindrical structure. One end of the pen tube 33a is connected to the core control device 35a, and the other end of the pen tube 33a is connected to the pressure sensor 50. The pen tube 33a has a hollow cylindrical structure. A guide post 331a is provided at one end of the pen tube 33a near the pressure sensor 50. The pen tube 33a is connected to the pressure sensor 50 through a guide post 331a. An inner wall of an end of the pen tube 33a near the core-out control device 35a is provided with an internal thread 332a. A stop ring 333a is further provided at the end of the pen tube 33a near the core-out control device 35a.

The core-out control device 35a includes a locking piece 351a connected to the pen tube 33a, a locking ring 353a sleeved on the head of the locking piece 351a, and a locking sleeve 355a connected to the tip sleeve 312a.

The locking piece 351a has a hollow structure. One end of the locking member 351 a is provided with a chuck 3511 a that penetrates and fastens the pencil lead 20. The locking ring 353a is sleeved on the chuck 3511a, so that the chuck 3511a can lock the pencil lead 20. In this embodiment, the chuck 3511a is a three-jaw chuck. In other embodiments, the chuck 3511a may also be a four-jaw or multi-jaw chuck. A stop ring 3512a is provided on an end of the locking member 351a facing away from the chuck 3511a. The outer peripheral surface of the end of the locking piece 351a facing away from the chuck 3511a is provided with an external thread 3513a that is screwed with the internal thread 332a of the pen tube 33a. A first tensioning groove 3514a and a second tensioning groove 3515a penetrating the first tensioning groove 3514a are formed in the lock member 351a in the axial direction. A limiting step surface 3516a having a generally inverted tapered shape is formed between the first tension groove 3514a and the second tension groove 3515a. The diameter of the first tension groove 3514a is greater than or equal to the diameter of the pencil core 20, and the diameter of the second tension groove 3515a is smaller than the diameter of the pencil core 20. When the chuck 3511a is in the locked state, the pencil lead 20 is accommodated in the first tension groove 3514a, and the head of the pencil lead 20 abuts against the limit step surface 3516a. When the chuck 3511a is in the unlocked state, the pencil lead 20 can pass through the second tension groove 3515a under the effect of gravity.

The locking ring 353a is movably sleeved on the chuck 3511a of the locking member 351a. The lock ring 353a has a cylindrical connecting portion 3531a and a limiting portion 3532a extending outwardly from an end portion of the connecting portion 3531a. The connecting portion 3531a of the locking ring 353a is sleeved on the chuck 3511a. The limiting portion 3532a of the lock ring 353a is clamped to the lock sleeve 355a.

The locking sleeve 355a is fixedly connected to the tip sleeve 312a. Specifically, an end of the locking sleeve 355a adjacent to the tip sleeve 312a is provided with an external thread 3551a screwed with the inner thread 3122a of the tip sleeve 312a. The locking sleeve 355 a is provided with a through hole 3552 a through which the connecting portion 3531 a of the locking piece 351 a and the locking ring 353 a passes in the axial direction. A protrusion 3553a is provided on the inner wall of the locking sleeve 355a adjacent to the tip sleeve 312a.

Further, the core-out control device 35 a further includes an electrical connector 352 a electrically connected to the pressure sensor 50. The electrical connection member 352a includes a lock spring 3521a sleeved on the lock piece 351a, a conductive sleeve 3523a sleeved on the guide post 331a of the pen tube 33a, and a wire 3522a provided between the lock spring 3521a and the conductive sleeve 3523a. . The lead 3522a is wound on the pen tube 33a. In one embodiment, the lead 3522a is a conductive spring. The lock spring 3521a is sandwiched between the stop ring 333a of the pen tube 33 and the protrusion 3553a of the lock sleeve 355a. The lead 3522a is sleeved on the pen tube 33. In this embodiment, the lead wire 3522a is fixedly connected to the lock spring 3521a and the conductive sleeve 3523a by welding.

It can be understood that, in this embodiment, the damping member 311a, the locking sleeve 355a, and the tip sleeve 312a are made of a silicone material. The locking member 351a, the electrical connecting member 352a, the locking ring 353a, and the pen tube 33a are all made of a conductive material, so as to achieve electrical conduction between the pencil core 20 and the pen tube 33a. The conductive material is, for example, but is not limited to brass.

Please refer to FIGS. 7 to 11 together. When assembling, the damping member 311 is sleeved on the tip sleeve 312 so that the damping member 311 is received in the tip sleeve 312. An end of the pen tube 33a provided with the guide post 331a passes through the lock spring 3521a and the lead wire 3522a in this order, and the guide post 331a of the pen tube 33a is inserted into the conductive sleeve 3523a. The locking member 351a faces away from the chuck 3511a and is engaged with the pen tube 33a. At this time, the internal thread 332a of the pen tube 33a is screwed with the external thread 3513a of the locking member 351a, and the locking spring 3521a is sleeved on the locking member 351a. . The lock sleeve 355a is accommodated with a lock spring 3521a. At this time, the lock spring 3521a and the lock piece 351a are received in the lock sleeve 335a, and the lock spring 2521a is sandwiched between the stop ring of the pen tube 33a. Between 333a and the projection 3553a of the locking sleeve 355a. The connecting portion 3531a of the locking ring 353a passes through the through hole 3552a of the locking sleeve 355a, and the tip sleeve 312a on which the damping member 311a is installed is engaged with the locking sleeve 355a, thereby assembling the refill loading mechanism 30a.

At this time, the internal thread 3122a of the tip sleeve 312a is screwed to the external thread 3551a of the lock sleeve 355a. The pen tube 33a of the pen core loading mechanism 30a on which the pencil core 20 is installed is connected to the pressure sensor 50. At this time, the conductive sleeve 3523a sleeved on the guide post 331a of the pen tube 33a is connected to the pressure sensor 50, thereby realizing the pencil core 20 It is electrically connected to the pressure sensor 50. The first connecting frame 111 and the second connecting frame 112 are fastened to each other, and the refill loading mechanism 30 is sandwiched between the first connecting frame 111 and the second connecting frame 112. The circuit board 40 is mounted on the first connection bracket 111. The outer tube 12 is sleeved on the connecting frame 11, and the connecting frame 11 is positioned in the outer tube 12, and then the power source 60 is installed at the tail of the outer tube 12, and the pen tip 14 is connected to the tail of the outer tube 12, that is, the pen. The external thread 141 of the tail 14 is screwed onto the second internal thread 122 of the outer cylinder 12. At this time, the power source 60 is electrically connected to the circuit board 40 through the conductive terminal. The pen tip 13 may be connected to the head of the outer cylinder 12, that is, the outer thread 131 of the pen tip 13 may be screwed to the first inner thread 121 of the outer cylinder 12.

When the pencil lead 20 needs to be used, the pen tip 13 is twisted away to separate the pen tip 13 from the outer cylinder 12, and the pen lead loading mechanism 30a is removed. The pencil lead 20 is inserted into the pen tube 33a, so that the pencil lead 20 passes through the pen tube 33a and abuts against the limiting step surface 3516a of the locking member 351a, that is, the pencil lead 20 is received in the first tension groove 3514a. The pen tube 33 is pressed so that the pen tube 33 drives the locking member 351a and the locking ring 353a to slide toward the damping member 311a. At this time, the lock spring 3521a is compressed, and the lead wire 3522a is stretched. When the limiting portion 3532a of the locking ring 353a abuts the protrusion 3123a of the top sleeve 312a, the chuck 3511a of the locking member 351a extends into the limiting space 3124a. At this time, the chuck 3511a is opened, so that the pencil lead 20 can pass Second tension groove 3515a. After the pen tube 33a is stopped from being pressed, the lock spring 3521a and the lead wire 3522a are restored to deformation, and the chuck 3511a locks the pencil lead 20.

By repeatedly pressing the pen tube 33a, the chuck 3511a of the locking member 351a moves the pencil lead 20 toward the tip sleeve until the pencil lead 20 extends into the damping member 311a. It can be understood that the damping member 311a and the tip sleeve 312a are fixed by a gel, and the damping member 311a and the pencil core 20 have a certain matching damping force. When the stop portion 3532a of the locking ring 353a abuts the protrusion 3123a of the tip sleeve 312a, the lead amount of the pencil lead 20 is the distance D2 between the locking ring 353a and the protrusion 3123a. When the pen tube 33a is stopped from being pressed, the lock spring 3521a and the lead wire 3522a are restored to deform and reset the pen tube 33a. Due to the damping force of the damping member 311a, the pencil lead 20 will remain in the damping member 311a, and the chuck 5111a will be locked again. Further, by continuously pressing the pen tube 33a, the pencil lead 20 is moved forward with a certain amount of movement until the pencil lead 20 protrudes from the tip sleeve 312a. Thereafter, the refill loading mechanism 30 a can be installed back into the outer cylinder 12 of the stylus pen 200, and the pen tip 13 can be connected to the outer cylinder 12. The tip sleeve 312 a is exposed through the opening 132 of the pen tip 13.

When the pencil lead 20 is worn, the pen tube 33a is relatively fixed. Press the tip sleeve 312 a with a small force until the locking ring 353 a and the chuck 3511 a are separated, so that there is a relative displacement between the damping member 311 and the pencil lead 20. It can be understood that the pencil lead 20 protrudes a certain distance (that is, the distance between the locking ring 353a and the protrusion 3123a) with respect to the tip sleeve 312a every time the button is pushed.

The stylus pen provided in the embodiment of the present application is provided with a refill loading mechanism, and the lead-out control device controls the pencil lead to extend out of the pen tip connection sleeve. The pen tube is made of conductive material, and the pencil lead is connected with the pen tube through the core-out control device. It is electrically connected so that the pencil lead is always in the current conducting state, which is convenient to use and improves the user's experience of writing and drawing with the pencil lead. In addition, after the pencil lead of the stylus is worn out, the lead of the pencil lead can be automatically released by operating the pen tip connection sleeve, thereby eliminating the need to disassemble the lead lead loading mechanism, which is convenient to use. Further, the central refill commonly used by those skilled in the art can be replaced with the refill loading mechanism, thereby increasing the versatility and practicability of the stylus.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not restrictive. Although the present application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that the technology of the present application Modifications or equivalent replacements of the schemes should not depart from the spirit and scope of the technical schemes of this application.

Claims

A stylus pen, characterized in that the stylus pen comprises a pen barrel and a refill loading mechanism provided in the pen barrel, and the refill loading mechanism includes a pen tip connection sleeve, a pen tube for loading a pencil lead, and A core-out control device provided between the nib connection sleeve and the pen tube, the core-out control device controls the pencil lead to extend out of the nib connection sleeve, and the pen tube and the core-out control device Both are made of a conductive material, and the pencil lead is electrically connected to the pen tube through the core-out control device.
The stylus pen according to claim 1, wherein the pen tip connecting sleeve and the pen tube can both slide along the center axis of the stylus pen through the core-out control device.
The stylus pen according to claim 1, wherein the pen tube is fixedly connected to the core-out control device.
The stylus pen according to claim 1, wherein the core-out control device comprises a locking member connected to the pen tube and a locking sleeve sleeved on the locking member.
The stylus pen according to claim 4, wherein the pen tip connection sleeve comprises a tip sleeve and a damping member provided in the tip sleeve, and the locking sleeve is connected to the tip sleeve and is connected with the tip sleeve. The damping members are arranged at intervals.
The stylus pen according to claim 5, wherein the core-out control device further comprises a first spring, the first spring being disposed between the damping member and the locking sleeve, and resisting Push the end of the locking sleeve.
The stylus pen according to claim 5, wherein the tip sleeve is slidably connected to the locking sleeve.
The stylus pen according to claim 7, wherein the tip sleeve is provided with a plurality of guide grooves or a plurality of guide sliders along the length direction, and the locking sleeve is provided with the guide grooves or the guide grooves. The guide slides or guide slides corresponding to the guide slides are described.
The stylus pen according to claim 5, wherein the tip sleeve is fixedly connected to the locking sleeve.
The stylus pen according to claim 4, wherein the core control device further comprises a hollow unlocking member, and the pen tube is connected to the locking member through the unlocking member.
The stylus pen according to claim 10, wherein one end of the unlocking member is fixedly connected to the pen tube, and the other end of the unlocking member is engaged with the locking member.
The stylus pen according to claim 10, wherein the unlocking member is movably received in the locking sleeve.
The stylus pen according to claim 12, wherein the core control device further comprises a locking member connected to a locking sleeve, and the locking member is provided with an opening for the pen tube to pass through. The unlocking member is clamped in the opening.
The stylus pen according to claim 13, wherein the unlocking member, the locking member, the locking sleeve, and the locking member are all made of a conductive material.
The stylus pen according to claim 4, wherein the locking member comprises a first locking member, a second locking member engaged with the first locking member, and a locking spring, and The first locking member and the second locking member are engaged by the locking spring.
The stylus pen according to claim 15, wherein the first locking member and the second locking member are jointly surrounded to form a tension groove having a limiting step surface.
The stylus pen according to claim 15, wherein when the first locking member is engaged with the second locking member, the pencil lead is abutted against the limiting stepped surface and stored in the In the tension groove, when the first lock member and the second lock member are opened, the pencil lead passes through the tension groove.
The stylus pen according to claim 15, wherein the inner wall of the lock sleeve is formed with a first protrusion for holding the lock spring.
The stylus pen according to claim 18, wherein the core control device further comprises a gasket sleeved on the unlocking member, and an inner wall of the locking sleeve is further configured to hold the The second protrusion of the gasket.
The stylus pen according to claim 19, wherein the core-out control device further comprises a second spring sleeved on the unlocking member, and the unlocking member is provided with a first stop ring, and A second spring is sandwiched between the first stop ring and the washer.
The stylus pen according to claim 15, wherein the stylus pen further comprises a pressure sensor, and the core-out control device further comprises an electrical connector electrically connected to the pressure sensor, and the electrical connector Socketed to the locking member and the pen tube.
The stylus pen according to claim 21, wherein the electrical connecting member comprises a locking spring sleeved on the locking member, a conductive sleeve sleeved on an end of the pen tube, and a The lead wire connecting the lock spring and the conductive sleeve is sleeved on the pen tube.
The stylus pen according to claim 22, wherein the pen tube is fixedly connected to the lock member, and the pen tube is provided with a second stop ring that catches the lock spring.
The stylus pen according to claim 23, wherein the core-out control device further comprises a lock ring sleeved on the lock piece, and an inner wall of the tip sleeve is provided to hold the lock Raised circles.