Stylus

Abstract

The application discloses a touch pen, which comprises a pen barrel, a main support and a pen core assembly. One end of the pen barrel is provided with an opening. The main support is installed in the pen barrel. The main support is provided with an installation groove. The pen core assembly is installed in the installation groove. The outer peripheral wall of the pen core assembly is in abutment with the inner peripheral wall of the installation groove. Part of the pen core assembly extends from the opening. A first elastic member is in the installation groove in a compressed state. One end of the first elastic member is in abutment with the pen core assembly. The other end of the first elastic member is in abutment with the main support. The touch pen has a simple structure. The structure of the pen core assembly is stable. The precision requirement of the parts is relatively reduced when the pen core assembly does not shake, so that the machining difficulty, machining time and machining cost of the parts of the touch pen are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of stylus, in particular to a stylus. BACKGROUND

[0002] The gap between the tip of the existing electronic stylus on the market and the limiting part of the refill exists, so that the tip shakes to different degrees, affecting the use of the product and the user experience.

[0003] In the related art, the gap between the refill and the refill limiting part is reduced to reduce the shaking of the refill, and the scheme of reducing the gap to reduce the shaking of the refill has high precision requirements for the refill, the refill limiting part and other parts, so that the parts are difficult to process, the time is long, and the production cost of the parts is high. SUMMARY

[0004] The main purpose of the present application is to provide a stylus, which aims to solve the problem that in the prior art, the shaking of the refill is reduced by increasing the precision requirements of the parts of the stylus, so that the parts of the stylus are difficult to process and have high production cost.

[0005] To achieve the above purpose, the present application provides a stylus, comprising:

[0006] A pen barrel, one end of the pen barrel is provided with an opening;

[0007] A main support, the main support is installed in the pen barrel, the main support has an installation slot opened along the length direction thereof, and the slot extends to one end of the main support close to the opening;

[0008] A refill assembly, the refill assembly is installed in the pen barrel, the outer peripheral wall of the refill assembly abuts against the inner peripheral wall of the main support, and part of the refill assembly extends from the opening;

[0009] A first elastic member, the first elastic member in a compressed state is arranged in the installation slot, one end of the first elastic member abuts against the refill assembly, and the other end of the first elastic member abuts against the main support.

[0010] Optionally, the refill assembly comprises a detection assembly and a writing assembly, one end of the writing assembly extends from the opening, the other end of the writing assembly contacts the detection assembly, and the first elastic member is clamped between the main support and the detection assembly.

[0011] Optionally, the first elastic member is a spring.

[0012] Optionally, the writing assembly comprises a probe and a refill connected with each other, the probe is provided with a first section and a second section, the shaft diameter of the first section is greater than that of the second section, the second section is provided with a slot extending to the first section at one end thereof away from the first section, and the other end of the refill is inserted into the slot and extends out of the opening of the barrel.

[0013] Optionally, the probe is further provided with a connecting section connecting the first section and the second section, the connecting section is tapered from the first section to the second section.

[0014] The writing assembly further comprises a fixing ring, the fixing ring is sleeved on the connecting section, and the outer peripheral wall of the connecting section and the inner peripheral wall of the fixing ring are in inclined surface contact.

[0015] Optionally, the outer diameter of the fixing ring is equal to the outer diameter of the first section.

[0016] Optionally, the slot is provided with a crown spring, and the outer peripheral wall of the refill is in interference fit with the crown spring.

[0017] Optionally, the second section is provided with a cavity at one end thereof away from the first section, and the cavity has a second opening.

[0018] The writing assembly further comprises a second elastic member and a guide column, one end of the guide column is in abutment with the second elastic member, the other end of the guide column is in abutment with the detection assembly, the preset pressure of the first elastic member is less than that of the second elastic member, and the second elastic member is compressed when the writing pressure acting on the refill is greater than the preset pressure of the second elastic member.

[0019] Optionally, the detection assembly comprises a first support and a pressure sensor, the first support and the main support limit an installation space of the first elastic member, the first support is provided with a groove at one side thereof away from the writing assembly, the pressure sensor is installed in the groove, one side of the pressure sensor away from the writing assembly is in abutment with the first elastic member, and the first support is provided with a guide hole communicating with the second opening at one side thereof away from the main support, so that the guide column is inserted into the groove and the pressure sensor is in abutment with one side of the pressure sensor facing the writing assembly.

[0020] Optionally, the refill assembly further comprises a flexible protective sleeve, and the flexible protective sleeve wraps the part of the refill assembly extending out of the opening.

[0021] The technical scheme of the present application sets a first elastic member in a compressed state in the mounting groove of the main support, one end of the first elastic member abuts against the refill assembly, the other end abuts against the main support, the first elastic member provides a reaction force to the refill assembly, by adjusting the compression length of the first elastic member, it can be ensured that the initial pressure of each pen is within the tolerance range of the pre-pressure during mass production, and due to the existence of the elastic force of the first elastic member on the refill assembly, even if there is a certain gap between the refill assembly and the pen barrel, the refill assembly will not shake, the present application reduces the precision requirement of the parts of the refill assembly without shaking, thereby reducing the processing difficulty, processing time and processing cost of the stylus. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the drawings shown.

[0023] Figure 1 The structure schematic diagram of an embodiment of the stylus of the present application is shown in the figure.

[0024] Figure 2 The structure schematic diagram of an embodiment of the stylus of the present application is shown in the figure. Figure 1 The enlarged view of part A in the figure.

[0025] Figure 3 The exploded view of the valve core assembly in an embodiment of the stylus of the present application is shown in the figure.

[0026] Explanation of reference numerals:

[0027]

[0028]

[0029] The implementation of the present application, functional characteristics and advantages will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0032] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of a person skilled in the art, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0033] In view of the problem in the prior art that the machining difficulty of the components of the stylus is great and the production cost is high by increasing the machining precision requirement of the components of the stylus to reduce the shaking of the refill 222, the present application provides a stylus. The stylus (stylus or stylus pen) is a small pen-shaped tool used to input instructions to a computer screen, a mobile device or a drawing board and the like with a touch screen. Users can input text, select files or draw by clicking the touch screen with the stylus. With the widespread use of touch screens in mobile phones, tablet computers or all-in-one machines and the like, touch technology has entered the field of view of people and gradually occupies a leading position.

[0034] In an embodiment, as shown in Figure 1 and Figure 2 The stylus includes a pen barrel 10, a refill assembly 20, a main support 30 and a first elastic member 40. One end of the pen barrel 10 is provided with an opening 101, and the main support 30 is installed in the pen barrel 10. The main support 30 has an installation slot 31 opened along the length direction thereof, and the installation slot 31 extends to one end of the main support 30 close to the opening 101. The outer peripheral wall of the refill assembly 20 abuts against the inner peripheral wall of the pen barrel 10, and part of the refill assembly 20 extends out of the opening 101. The main support 30 is installed in the pen barrel 10, and the first elastic member 40 in a compressed state is arranged in the pen barrel 10. One end of the first elastic member 40 abuts against the refill assembly 20, and the other end of the first elastic member 40 abuts against the main support 30.

[0035] Optionally, the pen barrel 10 can be cylindrical, and has an installation space for installing the refill assembly 20, the main support 30 and the first elastic member 40. The pen barrel 10 is used for holding and writing by a user. For the convenience of writing, the opening 101 of the pen barrel 10 can be provided in the shape of a circular truncated cone. The refill assembly 20 is installed in the installation groove 301 of the main support 30, and serves as a writing component of the stylus. A part of the refill assembly 20 extends out of the opening 101 of the pen barrel 10. For the convenience of understanding, the part of the refill assembly 20 extending out of the opening 101 of the pen barrel 10 can be defined as a pen tip part. The pen tip part is in contact with a to-be-written object to write. The to-be-written object can be a computer screen, a tablet screen or a mobile phone screen, etc. After the refill assembly 20 is assembled on the installation groove 301 of the main support 30 in sequence, the refill assembly 20 is installed in the pen barrel 10 together with the main support 30. This greatly simplifies the assembly difficulty of the internal parts of the stylus, and is more convenient for the assembly and production of the stylus.

[0036] Further, the main support 30 can serve as an abutting member of the first elastic member 40. One end of the first elastic member 40 is in abutment with the side of the main support 30 facing the refill assembly 20, and the other end is in abutment with the refill assembly 20. Taking the first elastic member 40 as a spiral elastic member for example, the distance between the bottom wall of the installation groove 301 of the main support 30 away from the opening 101 and the refill assembly 20 is less than the initial length of the first elastic member 40. After the stylus is installed in place, the first elastic member 40 is installed in a compressed state between the main support 30 and the refill assembly 20, and can always apply a force to the refill assembly 20 in a direction away from the first elastic member 40. This can ensure that the initial pressure of each stylus is within the tolerance range of the pre-pressure when the stylus is mass-produced.

[0037] Further, since the refill assembly 20 is always subjected to the pre-pressure of the first elastic member 40, even if there is a certain gap between the outer peripheral wall of the refill assembly 20 and the inner peripheral wall of the installation groove 301, or the refill assembly 20 has a certain machining gap in the axial or radial direction of the stylus, the refill assembly 20 can be completely positioned in the radial direction of the stylus without shaking. During writing, due to the existence of the force applied by the first elastic member 40 to the refill assembly 20, when the writing pressure on the pen tip part of the refill assembly 20 is less than the pre-pressure of the first elastic member 40, the refill assembly 20 can be ensured not to shake in the radial direction of the stylus. This makes the accuracy requirement of the internal parts of the stylus by the refill assembly 20 relatively low without shaking, thereby reducing the machining difficulty, machining time and machining cost of the parts of the stylus.

[0038] In an embodiment, as shown in Figure 2 and Figure 3As shown, the refill assembly 20 comprises a detection assembly 21 and a writing assembly 22, one end of the writing assembly 22 extends out of the opening 101, the other end of the writing assembly 22 is in contact with the detection assembly 21, and the first elastic member 40 is clamped between the main support 30 and the detection assembly 21.

[0039] Optionally, the detection assembly 21 is installed between the first elastic member 40 and the writing assembly 22, for detecting the writing pressure of the writing assembly 22, and under the action of the first elastic force, the connection between the detection assembly 21 and the writing assembly 22 is more compact, so that the detection assembly 21 can more accurately detect the pressure received by the writing assembly 22 during writing.

[0040] In an embodiment, the first elastic member 40 is a spring.

[0041] Optionally, in this embodiment, when the first elastic member 40 is selected as a spring, the opposite two ends thereof are respectively in abutment with the main support 30 and the detection assembly 21, compared with other elastic structures, it is easier to be in a pre-compressed state, and the abutment effect is good and the cost is low.

[0042] In an embodiment, the writing assembly 22 comprises a probe 221 and a refill 222 connected with each other, the probe 221 is provided with a first section 221a and a second section 221b, the shaft diameter of the first section 221a is greater than that of the second section 221b, and the second section 221b is provided with a slot 221c extending to the first section 221a at an end thereof away from the first section 221a along the length direction of the probe 221, one end of the refill 222 is inserted into the slot 221c, and the other end of the refill 222 extends out of the opening 101 of the pen barrel 10.

[0043] Optionally, in the embodiment, the writing assembly 22 is composed of the probe 221 and the refill 222. Since the opening 101 end of the pen barrel 10 is provided in the shape of a conical frustum, the outer diameter of the pen barrel 10 is smaller closer to the opening 101 end of the pen barrel 10. Therefore, in order to facilitate the installation of the probe 221, the probe 221 is divided into the first segment 221a and the second segment 221b connected with each other along the length direction of the pen barrel 10, and the shaft diameter of the first segment 221a is greater than that of the second segment 221b. The outer peripheral wall of the first segment 221a and the outer peripheral wall of the second segment 221b are both in contact with the inner peripheral wall of the installation groove 31, so that the structure of the stylus is more compact. The probe 221 can be extended out of the pen barrel 10 or placed in the pen barrel 10. In the embodiment, considering the stability of writing of the stylus, the probe 221 is completely placed in the pen barrel 10. An insertion slot 221c is formed in the end of the second segment 221b away from the first segment 221a along the length direction of the probe 221. The insertion slot 221c can extend to the middle part of the first segment 221a, so that the length of the refill 222 inserted into the insertion slot 221c is longer, and the connection is more compact. The refill 222 can be in contact with the slot bottom of the insertion slot 221c or be spaced apart from the slot bottom of the insertion slot 221c. In the embodiment, as shown in Figure 2 , the end of the refill 222 inserted into the insertion slot 221c is spaced apart from the slot bottom of the insertion slot 221c.

[0044] Further, a crown spring 70 is arranged in the insertion slot 221c. The refill 222 includes the insertion segment 222a, the middle segment 222b and the writing segment 222c connected with each other. The insertion segment 222a is in clearance fit with the insertion slot 221c. The part of the insertion segment 222a away from the middle segment 222b is in interference fit with the crown spring 70. When installed, the end of the refill 222 is inserted into the insertion slot 221c and is in cooperation with the crown spring 70, so that the refill 222 can be fixed. The installation is very convenient. The middle segment 222b is in contact with the end of the second segment 221b close to the opening 101, so that the installation and positioning of the refill 222 are facilitated. The length of the refill 222 inserted into the insertion slot 221c is positioned. The stability and reliability of the refill 222 after installation can be ensured by the crown spring 70.

[0045] In an embodiment, the probe 221 is further provided with the connecting segment 221d connecting the first segment 221a and the second segment 221b. The connecting segment 221d is tapered from the first segment 221a to the second segment 221b. The writing assembly 22 further includes the fixing ring 50. The fixing ring 50 is sleeved on the connecting segment 221d and in contact with the first segment 221a. The outer peripheral wall of the connecting segment 221d and the inner peripheral wall of the fixing ring 50 are in inclined surface contact.

[0046] Optionally, in the embodiment, in order to prevent the refill assembly 20 from shaking during writing, a connecting section 221d is arranged between the first section 221a and the second section 221b of the probe 221, and the connecting section 221d is tapered from the first section 221a to the second section 221b, i.e., the connecting section 221d is in the shape of a circular truncated cone. The writing assembly 22 further comprises a fixing ring 50, which can be in the shape of a cylinder and has a funnel-shaped hole in the axial direction of the fixing ring 50, so that the fixing ring 50 is sleeved on the connecting section 221d and the second section 221b. The outer peripheral wall of the fixing ring 50 is in abutment with the inner peripheral wall of the mounting groove 31. At this time, the connecting section 221d of the probe 221 is in inclined surface contact with the fixing ring 50. When the stylus is writing, the force in the inclined direction is conducted to the main support along the inclined surface of the fixing ring 50 for dispersion. The inclined surface of the fixing ring 50 in abutment with the connecting section 221d provides a radial reaction force to the refill 222, so that the probe 221 can be fixed in the radial direction during writing and does not shake. In combination with the abutting force of the first elastic member 40, the refill assembly 20 does not shake during writing or when not writing. In addition, the machining precision of the components of the refill assembly 20 does not need to be too high, thereby reducing the production cost.

[0047] It should be noted that the fixing ring 50 can be annularly arranged on the outer periphery of the insertion section 222a away from the writing section 222c. When the stylus is writing, if the refill 222 is in inclined contact with the writing surface, the end of the refill 222 away from the writing section 222c will be subjected to a force opposite to the writing force. At this time, since the fixing ring 50 is arranged on the outer periphery of the end of the refill 222 away from the writing section 222c, and the inner peripheral wall of the fixing ring 50 is in inclined surface contact with the connecting section 221d of the refill 222, when the refill 222 is subjected to a reaction force, the inner peripheral wall of the fixing ring 50 will first provide a radial reaction force to the refill 222, so that the refill 222 does not shake in the radial direction, and the stability of the stylus can be further improved, and the writing experience of the user can be improved.

[0048] In an embodiment, the outer diameter of the fixing ring 50 is equal to the outer diameter of the first section 221a.

[0049] It can be understood that, in order to facilitate the assembly of the refill assembly 20 and the main support 30, the mounting groove 301 is a strip-shaped groove extending along the length direction thereof, and when mounting, only the first elastic member 40, the detection assembly 21 and the refill assembly 20 need to be placed in the strip-shaped groove in sequence, and then the main support 30 is mounted on the body of the pen barrel 10, so that part of the refill 222 extends out of the opening 101 of the pen barrel 10, and the assembly of the stylus is completed. When the outer diameter of the fixing ring 50 is equal to the outer diameter of the first section 221a, the outer peripheral wall of the fixing ring 50 and the first section 221a are located on the same plane, the fixing ring 50 and the first section 221a can be located in the strip-shaped groove of the same diameter, the production difficulty of the mounting groove 31 is reduced, and the fixing ring 50 can move along the length direction of the mounting groove 31 together with the first section 221a, so that the fixing ring 50 and the connecting section 221d always maintain the inclined surface abutment, avoiding the refill from shaking in the radial direction, further improving the effect that the refill does not shake when the stylus is writing, and making it more convenient to install the refill assembly 20 and the fixing ring 50 in the mounting groove 31 of the main support 30.

[0050] Further, when the stylus is not subjected to the writing force, the first elastic member 40 is in a compressed state, and a pre-pressure is provided to the refill assembly 20, and since the inner wall surface of the fixing ring 50 is in inclined surface contact with the outer surface of the probe 221, a radial component force is applied to the probe 221, so that the probe 221 can be fixed in the radial direction and does not shake when not writing.

[0051] It should be noted that, in other embodiments, according to the size change of the position of the mounting groove 301 in which the fixing ring 50 is mounted, the outer diameter of the fixing ring 50 can also be greater than or less than the outer diameter of the first section 221a, as long as the outer peripheral wall of the fixing ring 50 abuts against the groove wall of the mounting groove 301 and the inner peripheral wall of the fixing ring 50 is in inclined surface contact with the second section 221b, and the size thereof is not limited herein.

[0052] In an embodiment, the first section 221a is provided with a cavity 2211 at an end away from the second section 221b, and the cavity 2211 has a second opening 2212; the writing assembly 22 further comprises a second elastic member 224 and a guide column 223, one end of the guide column 223 abuts against the second elastic member 224, and the other end of the guide column 223 abuts against the detection assembly 21, so that when the writing pressure received by the refill 222 is greater than the preset pressure of the second elastic member 224, the second elastic member 224 is compressed.

[0053] Optionally, as Figure 2 and Figure 3As shown, the first section 221a can be divided into a first part and a second part connected to each other, wherein the outer diameter of the first part is smaller than that of the second part and is arranged at the end away from the second section 221b, so that when the refill assembly 20 is installed in the pen barrel 10, a certain gap is reserved between the outer peripheral wall of the first part and the inner peripheral wall of the pen barrel 10, facilitating the internal wiring of the stylus, and making the structure of the entire stylus more compact.

[0054] Further, the first section 221a of the probe 221 is internally provided with a cavity 2211, and a second opening 2212 communicating with the cavity 2211 is formed on the end of the first section 221a away from the second section 221b, and the inner diameter of the second opening 2212 is smaller than that of the cavity 2211. The guide column 223 includes a first guide part 2231 and a second guide part 2232, the first guide part 2231 is arranged in the cavity 2211, and the outer peripheral wall of the first guide part 2231 is in clearance fit with the inner peripheral wall of the cavity 2211, so that the first guide part 2231 can move in the length direction of the cavity 2211, and the outer peripheral wall of the second guide part 2232 is in clearance fit with the inner peripheral wall of the second opening 2212, and the second guide part 2232 extends out of the second opening 2212 and abuts against the detection assembly 21. The preset pressure of the first elastic member 40 is smaller than the preset pressure of the second elastic member 224, and the preset pressure is the force at which the elastic member starts to deform when subjected to external force. When the writing pressure of the stylus is greater than the preset pressure of the first elastic member 40 and smaller than the preset pressure of the second elastic member 224, the first elastic member 40 is compressed, and the second elastic member 224 remains unchanged, and the writing assembly 22 retreats a small distance, and when the writing pressure of the refill 222 is greater than the preset pressure of the second elastic member 224, the first elastic member 40 continues to be compressed, and the second elastic member 224 is compressed at the same time to offset the writing pressure, preventing the sensor assembly from being damaged due to excessive pressure, and prolonging the service life of the sensor assembly.

[0055] In an embodiment, as shown in Figure 2 and Figure 3 The detection assembly 21 includes a first bracket 211 and a pressure sensor 212, and the installation space of the first elastic member 40 is limited between the first bracket 211 and the main bracket 30, the first bracket 211 is provided with a recess 213 on the side away from the writing assembly 22, the pressure sensor 212 is installed in the recess 213 and abuts against the first elastic member 40, and the first bracket 211 is provided with a guide hole 214 communicating with the recess 213 on the side facing the writing assembly 22, so that the guide column 223 is inserted into the recess 213 and abuts against the pressure sensor 212 from the guide hole 214.

[0056] Optionally, for facilitating installation of the detection assembly 21, the detection assembly 21 is divided into a first bracket 211 and a pressure sensor 212, the first bracket 211 can be a square block, installed in the installation slot 31, the installation slot 31 of the main bracket 30 corresponding to the installation position of the first bracket 211 can be expanded along the radial direction to form a limiting slot, the first bracket 211 has a limiting protrusion matched with the limiting slot, so that the first bracket 211 is installed on the main bracket 30, and the first bracket 211 will not be displaced along the length direction of the main bracket 30, so as to ensure that the first elastic member 40 is in a preset compressed state, and the initial preset pressure value of the stylus is controlled. Wherein, the end of the first bracket 211 away from the writing assembly 22 is provided with a groove 213 opened along the length direction of the pen barrel 10, so as to accommodate and limit the radial displacement of the pressure sensor 212 along the first bracket 211. The side of the first bracket 211 towards the writing assembly 22 is provided with a guide hole 214 communicated with the groove 213, the guide hole 214 is used for the second guide part 2232 of the guide column 223 to pass through and abut against the pressure sensor 212.

[0057] It should be noted that, as shown in Figure 2 and Figure 3 , the groove 213 is divided into a first slot section 213a and a second slot section 213b along the length direction of the pen barrel 10, the width of the first slot section 213a is greater than that of the second slot section 213b, that is, the cross section of the groove 213 along the axial direction of the pen barrel 10 is a T-shaped slot, and the cross section of the pressure sensor 212 along the axial direction of the pen barrel 10 can also be correspondingly arranged in a T shape. The pressure sensor 212 includes a front section 212a and a rear section 212b connected with each other, the front section 212a is accommodated in the first slot section 213a and used for abutting against the first elastic member 40, and the rear section 212b is accommodated in the second slot section 213b and abuts against the guide column 223. The length of the rear section 212b of the pressure sensor 212 along the length direction of the pen barrel 10 is less than the length of the second slot section 213b along the length direction of the pen barrel 10, so that the rear section 212b of the pressure sensor 212 has a certain gap with the groove bottom of the groove 213, the gap can be controlled within 0.10 mm, so as to ensure that when the stylus is subjected to a writing pressure, the first elastic member 40 abuts against the pressure sensor 212, so as to control the preset pressure of the stylus.

[0058] In an embodiment, the stylus further includes a flexible protective sleeve 60, the flexible protective sleeve 60 wraps the part of the lead assembly 20 extending out of the opening 101.

[0059] Optionally, as shown in Figure 1 and Figure 2As shown, in the embodiment, the writing section 222c of the refill 222 extends out of the opening 101 of the barrel 10, the surface of the writing section 222c of the refill 222 contacting the screen during writing is referred to as the writing surface, and the end of the writing section 222c away from the probe 221 can be provided in a spherical or hemispherical shape, so that the writing surface is a spherical surface, so that the relative position distance of any point on the contact surface of the stylus to the writing surface of the writing section 222c is equal, so that the output signal size is consistent during writing, so that the signal output is consistent before and after the writing switching at different angles of the nib, especially when the writing posture is converted from holding the stylus vertically to holding the stylus obliquely, the signal output is stable, and the stroke size is consistent. The flexible protective sleeve 60 is wrapped on the writing section 222c of the refill 222, the flexible protective sleeve 60 has a contact surface for contacting the touch screen during writing, and the relative position distance of any point on the contact surface to the writing surface of the writing section 222c is equal. It should be noted that the flexible protective sleeve 60 can be made of different types of plastic.

[0060] The above description is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields within the concept of the present application, and the contents of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. A stylus, characterized in that, include: A pen holder, wherein one end of the pen holder has an opening; A main support bracket is installed inside the pen holder. The main support bracket has a mounting groove extending along its length to one end of the main support bracket near the opening. A pen refill assembly is installed in the mounting slot. The outer peripheral wall of the pen refill assembly abuts against the inner peripheral wall of the main support. A portion of the pen refill assembly extends out from the opening. The pen refill assembly includes a writing component, which includes a probe and a retaining ring. The probe is provided with a first segment and a second segment. The shaft diameter of the first segment is larger than that of the second segment. The probe is also provided with a connecting segment connecting the first segment and the second segment. The connecting segment is tapered from the first segment to the second segment. The fixing ring is sleeved on the connecting section, and the outer peripheral wall of the connecting section is in contact with the inclined surface of the inner peripheral wall of the fixing ring; A first elastic element is disposed in the mounting groove in a compressed state. One end of the first elastic element abuts against the pen refill assembly, and the other end of the first elastic element abuts against the main bracket.

2. The stylus as described in claim 1, characterized in that, The pen refill assembly includes a detection component, one end of the writing component extends from the opening, the other end of the writing component contacts the detection component, and the first elastic element is clamped between the main support and the detection component.

3. The stylus as described in claim 1, characterized in that, The first elastic element is a spring.

4. The stylus as described in claim 2, characterized in that, The writing assembly includes a pen refill connected to the probe. The second segment, at one end away from the first segment, has a slot extending to the first segment along the length of the probe. One end of the pen refill is inserted into the slot, and the other end of the pen refill extends out from the opening of the pen holder.

5. The stylus as described in claim 4, characterized in that, The outer diameter of the fixed ring is equal to the outer diameter of the first segment.

6. The stylus as described in claim 4, characterized in that, A crown spring is provided in the slot, and the outer peripheral wall of the pen refill is interference-fitted with the crown spring.

7. The stylus as described in claim 4, characterized in that, The first segment has a cavity at the end furthest from the second segment, and the cavity has a second opening; The writing component further includes a second elastic element and a guide post. One end of the guide post abuts against the second elastic element, and the other end of the guide post abuts against the detection component. The preset pressure of the first elastic element is less than the preset pressure of the second elastic element. When the writing pressure on the pen refill is greater than the preset pressure of the second elastic element, the second elastic element is compressed.

8. The stylus as described in claim 7, characterized in that, The detection assembly includes a first bracket and a pressure sensor. The first bracket and the main bracket define an installation space for the first elastic element. The first bracket has a groove on the side away from the writing assembly. The pressure sensor is installed in the groove. The side of the pressure sensor away from the writing assembly abuts against the first elastic element. The side of the first bracket away from the main bracket has a guide hole that communicates with the second opening, so that the guide post is inserted into the groove through the guide hole and abuts against the side of the pressure sensor facing the writing assembly.

9. The stylus as described in claim 1, characterized in that, The pen refill assembly also includes a flexible protective sleeve that wraps around the portion of the pen refill assembly that extends out of the opening.

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