Telescopic protection type capacitance pen controlled by fingerprint unlocking
By designing a retractable protective capacitive pen with fingerprint unlock control, and utilizing limiting, pop-out, and buffer components, the problems of easily damaged pen tips and cumbersome pen cap operation are solved, achieving effective protection of the pen tip and ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- YKSONG PEN IND TECH R&D CENT SHENZHEN CO LTD
- Filing Date
- 2024-11-08
- Publication Date
- 2026-05-08
AI Technical Summary
The tip of the existing capacitive pen is directly exposed, making it easy to damage. In addition, the existing pen cap structure is cumbersome to operate and easy to lose, and cannot effectively protect the capacitive pen tip.
A retractable protective capacitive pen with fingerprint unlock control was designed. The pen barrel and protective shell are slidably connected. It has built-in limiting components, pop-out components, buffer components and counterweights to realize the storage and protection of the pen barrel and pen tip.
The protective casing design extends the lifespan of the capacitive pen, improves ease of use and safety, prevents pen tip damage, and simplifies operation.
Smart Images
Figure HDA0005126223260000011 
Figure HDA0005126223260000021 
Figure HDA0005126223260000031
Abstract
Description
Technical Field
[0001] This invention relates to the field of capacitive pen technology, specifically a retractable and protective capacitive pen with fingerprint unlocking control. Background Technology
[0002] Capacitive pens are also known as styluses and can be used in enterprise OA, ERP systems, collaborative systems, or intranets of professional organizations. Their emergence makes them convenient for users. They are not only simple in structure but also easy to operate. However, existing fingerprint recognition capacitive pens have certain drawbacks. First, existing capacitive pens do not have fingerprint recognition devices. When the person in charge logs in with their own account, they often forget to log out or suddenly leave their seat, allowing others to impersonate the person in charge to approve important documents, which is inconvenient. Second, existing capacitive pens do not have built-in batteries or Bluetooth modules, requiring frequent replacement of button batteries. They also cannot efficiently connect directly to computers and various digital products, requiring the use of a handwriting tablet and other third-party devices to connect. Their functionality is greatly reduced, making them an accessory with certain disadvantages.
[0003] In the prior art, such as the fingerprint recognition stylus disclosed in announcement number CN114816089A, this technical solution discloses a fingerprint recognition stylus, including a pen barrel. A capacitive pen tip is disposed on one outer surface of the pen barrel, and a Type-C interface is disposed on the other outer surface of the pen barrel. A Bluetooth module, a status indicator light, and a capacitive fingerprint sensor are disposed on the outer wall of the pen barrel. The capacitive fingerprint sensor is located on one side of the Bluetooth module, and the status indicator light is located on the other side of the Bluetooth module. One outer surface of the capacitive pen tip is fixedly connected to one outer surface of the pen barrel. The fingerprint recognition stylus of this invention, equipped with a capacitive fingerprint sensor, a Type-C interface, a Bluetooth module, and a capacitive pen tip, enables fingerprint recognition at the point of gripping the pen, facilitates user charging of the stylus, and allows for efficient direct connection to computers and various digital products. Furthermore, it allows users to conveniently write or draw on electronic products, bringing better usage prospects.
[0004] However, the tip of a capacitive pen is currently exposed and is easily damaged if not stored properly, affecting its use. Some capacitive pens have added a cap structure, which provides adequate protection, but the operation of inserting and removing the cap is cumbersome and the cap is easy to lose, thus failing to protect the pen tip.
[0005] To address the aforementioned issues, this application proposes a retractable protective capacitive pen with fingerprint unlocking control. Summary of the Invention
[0006] The present invention aims to provide a retractable protective capacitive pen for fingerprint unlocking control. It is mainly used to solve the problem that the tip of the existing capacitive pen is directly exposed, which is easily damaged if not stored properly, thus affecting its use. Although some capacitive pens have added a pen cap structure to provide adequate protection, the operation of inserting and removing the pen cap is cumbersome and the pen cap is easy to lose, so it cannot effectively protect the pen tip.
[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:
[0008] A retractable protective capacitive pen with fingerprint unlocking control includes a pen barrel and a pen tip. A capacitive sensor is disposed on the outer wall of the pen barrel. A circuit board is installed inside the pen barrel, and an RF transmitter and a data transmission module are mounted on the circuit board. A protective shell is slidably connected to the upper end of the outer wall of the pen barrel. A limiting component for fixing the pen barrel inside the protective shell is disposed on the outer wall of the pen barrel. A counterweight is fixedly connected to the upper end of the inner wall of the protective shell. A buffer component is fixedly connected to the top of the counterweight. A charging block is fixedly connected to the upper end of the buffer component. The charging block is slidably connected to the inner wall of the protective shell. The upper end of the charging block extends out of the protective shell and is provided with a Type-C interface. A pop-out component is fixedly connected to the bottom of the counterweight. A first contact is fixedly connected to the upper end of the pen barrel. A second contact matching the first contact is fixedly connected to the bottom of the pop-out component. A wire is fixedly connected to the bottom of the charging block. The wire passes through the counterweight and is fixedly connected to the counterweight. The lower end of the wire is fixedly connected to the pop-out component.
[0009] Working principle and beneficial effects of the present invention:
[0010] 1. Working Principle: When using the capacitive pen, the finger contacts the capacitive sensor. This contact changes the capacitance value, and the radio frequency transmitter on the circuit board sends an electrical pulse signal to the sensor. Based on the capacitance change, the circuit board calculates the capacitance value between the finger and the pen tip. The circuit board converts this calculated capacitance value into a digital signal and transmits it wirelessly or wired to a computer or other digital product. The pen tip is then used to write or draw on tablets, mobile phones, or other electronic devices. For important events requiring approval or review, the user can use the fingerprint reader on the pen to verify their identity and conduct the approval process. When the pen is not in use, the limiting component on the pen body can be released, allowing the pen body and pen tip to be stored inside the protective case. Once the pen body and pen tip are completely inside the protective case, the limiting component... The retaining component secures the pen and tip inside the protective shell. Simultaneously, the first contact at the top of the pen contacts the second contact at the bottom of the pop-out component. The Type-C interface on the charging block and the second contact are electrically connected via wires. Users can charge the pen by inserting the charging cable into the Type-C interface. If the pen is accidentally dropped, a counterweight inside the protective shell ensures that the end of the pen closest to the buffer component lands first, providing good protection. To use the pen, release the retaining component on the pen. The pen and tip will then pop out a short distance using the pop-out component inside the protective shell. After fully pulling the pen and tip out of the protective shell, the retaining component secures the pen, and the pen is ready for normal use.
[0011] 2. Beneficial effects:
[0012] (1) With the protective shell set on the pen barrel, when the capacitive pen is not in use, the pen barrel and pen tip can be stored inside the protective shell. The protective shell can play a good role in storing and protecting the capacitive pen, thereby effectively extending the service life of the capacitive pen.
[0013] (2) With the counterweight inside the protective shell and the buffer component on one side of the counterweight, when the capacitive pen is accidentally dropped to the ground, the counterweight inside the protective shell will cause the end of the capacitive pen closest to the buffer component to land first. The buffer component can provide good buffer protection for the capacitive pen.
[0014] (3) After the limiting component on the pen barrel is released by the pop-out component set on one side of the counterweight inside the protective shell, the pen barrel will pop out a distance under the action of the pop-out component. Then, after the pen barrel is completely pulled out from inside the protective shell, it is fixed by the limiting component, and the capacitive pen can be used normally, which makes the use of the capacitive pen more convenient.
[0015] Preferably, the limiting component includes a sliding cavity opened at the upper end of the outer wall of the pen barrel. A limiting block is slidably connected inside the sliding cavity. One side of the limiting block extends out of the pen barrel, and a first spring is fixedly connected to the other side. The other end of the first spring is fixedly connected to the inner wall of the sliding cavity. Two limiting grooves matching the limiting block are opened on the protective shell. A fixing cylinder is fixedly connected to the opening of each limiting groove on the outer wall of the protective shell. A button is slidably connected inside the fixing cylinder. One side of the button extends out of the fixing cylinder, and the other side abuts against the limiting block. When the capacitive pen needs to be stored, pressing the button inside the lower fixing cylinder on the protective shell can push the limiting block into the sliding cavity, while simultaneously squeezing the first spring. In the compressed state, once the limiting block disengages from the lower limiting groove on the protective shell, the pen can be slid into the protective shell. When the pen and pen tip are fully inside the protective shell, the limiting block will pop out under the action of the first spring and engage with the upper limiting groove on the protective shell, thus completing the storage of the pen and pen tip and providing good protection for the pen tip. When the capacitive pen needs to be used, press the button inside the upper fixing cylinder on the protective shell to disengage the limiting block from the limiting groove. The pen will then pop out a distance under the action of the pop-out component. After that, pull the pen completely out of the protective shell and fix it with the limiting component. The capacitive pen can then be used normally.
[0016] Preferably, the buffer assembly includes a damping rod fixedly connected to the top of the counterweight, the upper end of the damping rod being fixedly connected to the charging block, and a second spring sleeved on the outer wall of the damping rod. The lower end of the second spring is fixedly connected to the counterweight, and the upper end is fixedly connected to the charging block. When the capacitive pen is accidentally dropped to the ground, the counterweight inside the protective shell will cause the end of the capacitive pen closest to the charging block to land first. The impact on the charging block will compress the damping rod and the second spring. Through the cooperation of the damping rod and the second spring, the capacitive pen can be effectively buffered and protected, thereby effectively extending the service life of the capacitive pen.
[0017] Preferably, the pop-out component includes a third spring fixedly connected to the bottom of the counterweight, a push plate fixedly connected to the lower end of the third spring, the push plate being slidably connected to the inner wall of the protective shell, the lower end of the wire being fixedly connected to the push plate, and the bottom of the push plate being fixedly connected to the second contact point. When the pen is retracted into the protective shell, the pen will push the push plate upward, and the push plate will simultaneously squeeze the third spring and compress it. After the limiting component is released, the push plate will pop the pen a certain distance under the action of the third spring. Then, the pen can be completely pulled out from inside the protective shell and fixed by the limiting component, and the capacitive pen can be used normally, making the use of the capacitive pen more convenient.
[0018] Preferably, a threaded post is fixedly connected to the axis at the top of the pen tip, and a threaded hole matching the threaded post is opened at the lower end of the pen barrel. The pen tip is threadedly connected to the lower end of the pen barrel. This not only makes the connection between the pen tip and the pen barrel more secure, but also makes it easier to disassemble and assemble the pen tip. This makes it convenient for people to replace the pen tip when it is damaged after long-term use of the capacitive pen.
[0019] Preferably, a guide block is fixedly connected to the upper end of the outer wall of the pen barrel, and a guide groove matching the guide block is opened on the protective shell. The side of the guide block away from the pen barrel extends out of the protective shell and is fixedly connected to a moving block. When the pen barrel slides inside the protective shell, the guide block on the pen barrel and the guide groove on the protective shell can play a good role in limiting and guiding the pen barrel. This not only makes the pen barrel more stable when sliding inside the protective shell, but also effectively prevents the pen barrel from falling off the protective shell. The moving block on one side of the protective shell extends out of the guide block. People can press and slide the moving block to make the pen barrel slide inside the protective shell, which makes the use of the capacitive pen more convenient.
[0020] Preferably, a ball bearing is rotatably connected to the axis of the limiting block extending from the pen barrel. When the pen barrel slides inside the protective shell, the limiting block will abut against the inner wall of the protective shell under the action of the first spring. The ball bearing provided on the pen barrel side extending from the limiting block can effectively reduce the friction between the limiting block and the inner wall of the protective shell. This not only effectively reduces the wear between the limiting block and the inner wall of the protective shell, but also makes it easier and less strenuous for the pen barrel to slide up and down.
[0021] Preferably, the outer wall of the button is fixedly connected with symmetrical sliders, and the inner wall of the fixed cylinder is provided with a groove that matches the sliders. When the button slides inside the fixed cylinder, the sliders on both sides of the button and the groove on the inner wall of the fixed cylinder can play a good role in limiting and guiding the button. This not only makes the button more stable when sliding inside the fixed cylinder, but also effectively prevents the button from falling out of the fixed cylinder.
[0022] Preferably, there are two guide blocks, which are symmetrically arranged on the upper part of the outer wall of the pen barrel. By setting the number of guide blocks to two, and providing a moving block on one side of each guide block extending out of the protective shell, it is more convenient for the pen barrel to slide inside the protective shell when people press and slide the moving blocks at the same time.
[0023] Preferably, a rubber pad is fixedly connected to the side of the movable block away from the guide block, and the rubber pad has anti-slip texture. The rubber pad on one side of the movable block makes it more comfortable for people to press and slide the movable block. The anti-slip texture on the rubber pad increases the friction between people's hands and the movable block, thereby effectively preventing people from slipping when pressing and sliding the movable block. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural diagram of the entire invention;
[0025] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention;
[0026] Figure 3 This is a schematic diagram of the overall structure of the pen barrel and pen tip of the present invention;
[0027] Figure 4 This is a partially enlarged top view cross-sectional structural diagram of the present invention;
[0028] Figure 5 This is a partially enlarged frontal cross-sectional view of the protective shell of the present invention;
[0029] Figure 6 This is a partially enlarged side view cross-sectional diagram of the protective shell of the present invention;
[0030] Figure 7 This is a schematic diagram of the overall cross-sectional structure of the pen barrel of the present invention;
[0031] Figure 8 For the present invention Figure 2 Enlarged structural diagram at point A;
[0032] Figure 9 A schematic diagram of signal transmission in this invention.
[0033] In the diagram: 1. Pen barrel; 2. Pen tip; 3. Capacitive sensor; 4. Protective shell; 5. Counterweight; 6. Charging block; 7. Type-C interface; 8. Wire; 9. First contact; 10. Second contact; 11. Sliding cavity; 12. Limiting block; 13. First spring; 14. Limiting groove; 15. Fixing cylinder; 16. Button; 17. Damping rod; 18. Second spring; 19. Third spring; 20. Push plate; 21. Guide block; 22. Guide groove; 23. Moving block; 24. Threaded column; 25. Threaded hole; 26. Ball bearing; 27. Slider; 28. Slide groove; 29. Rubber pad; 30. Circuit board; 31. Radio frequency transmitter; 32. Data transmission module. Detailed Implementation
[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0035] Please see Figure 1-8A retractable protective capacitive stylus with fingerprint unlocking control includes a stylus 1 and a stylus 2. A capacitive sensor 3 is installed on the outer wall of the stylus 1. A circuit board 30 is installed inside the stylus 1, and an RF transmitter 31 and a data transmission module 32 are installed on the circuit board 30. A threaded post 24 is fixedly connected to the axis at the top of the stylus 2. A threaded hole 25 matching the threaded post 24 is opened at the lower end of the stylus 1. The stylus 2 is threadedly connected to the lower end of the stylus 1. This not only makes the connection between the stylus 2 and the stylus 1 more secure, but also makes it easier to disassemble and assemble the stylus 2. This allows for easy replacement of the stylus 2 when it is damaged after long-term use. A protective shell 4 is slidably connected to the upper end of the outer wall of the stylus 1. A symmetrical guide block 21 is fixedly connected to the protective shell 4. A guide groove 22 matching the guide block 21 is provided on the protective shell 4, which effectively limits and guides the pen barrel 1. This not only makes the pen barrel 1 more stable when sliding inside the protective shell 4, but also effectively prevents the pen barrel 1 from detaching from the protective shell 4. A movable block 23 is fixedly connected to the side of the guide block 21 away from the pen barrel 1. A rubber pad 29 is fixedly connected to the side of the movable block 23 away from the guide block 21, and the rubber pad 29 has anti-slip textures. Users can press and slide the movable block 23 to make the pen barrel 1 slide inside the protective shell 4, making the capacitive pen more convenient to use. A limiting component is provided on the outer wall of the pen barrel 1 to fix the pen barrel 1 inside the protective shell 4. During use, the pen barrel 1 is fixed by the limiting component, which ensures high stability during use. After the pen barrel 1 and pen tip 2 are stored inside the protective shell 4, the limiting component fixes the pen barrel 1 inside the protective shell 4, thus providing good protection for the pen barrel 1 and pen tip 2. A counterweight 5 is fixedly connected to the upper end of the inner wall of the protective shell 4, and a buffer component is fixedly connected to the top of the counterweight 5. A charging block 6 is fixedly connected to the upper end of the buffer component. The charging block 6 is slidably connected to the inner wall of the protective shell 4. If the capacitive pen is accidentally dropped to the ground, the counterweight 5 inside the protective shell 4 will ensure that the end of the capacitive pen closest to the buffer component lands first, thus providing good protection for the capacitive pen. The upper end of the charging block 6 extends out of the protective shell 4. It is equipped with a Type-C interface 7, a pop-out component is fixedly connected to the bottom of the counterweight 5, a first contact 9 is fixedly connected to the upper end of the pen barrel 1, a second contact 10 matching the first contact 9 is fixedly connected to the bottom of the pop-out component, and a wire 8 is fixedly connected to the bottom of the charging block 6. The wire 8 passes through the counterweight 5 and is fixedly connected to the counterweight 5. The lower end of the wire 8 is fixedly connected to the pop-out component. After the pen barrel 1 and pen tip 2 are stored inside the protective shell 4, the first contact 9 at the upper end of the pen barrel 1 will contact the second contact 10 at the bottom of the pop-out component. The Type-C interface 7 and the second contact 10 on the charging block 6 are electrically connected through the wire 8. After inserting the connector of the charging cable into the Type-C interface 7, the capacitive pen can be charged.
[0036] like Figure 2 and Figure 8 As shown, the limiting assembly includes a sliding cavity 11 opened at the upper end of the outer wall of the pen barrel 1. A limiting block 12 is slidably connected inside the sliding cavity 11. One side of the limiting block 12 extends out of the pen barrel 1 and is rotatably connected to a ball bearing 26. The other side is fixedly connected to a first spring 13. The other end of the first spring 13 is fixedly connected to the inner wall of the sliding cavity 11. Two limiting grooves 14 matching the limiting block 12 are opened on the protective shell 4. Fixed cylinders 15 are fixedly connected to the openings of the limiting grooves 14 on the outer wall of the protective shell 4. A button 16 is slidably connected inside the fixed cylinder 15. Symmetrical sliders 27 are fixedly connected to the outer wall of the button 16. A sliding groove 28 matching the slider 27 is opened on the inner wall of the fixed cylinder 15. One side of the button 16 extends out of the fixed cylinder 15, and the other side abuts against the limiting block 12. When the capacitive pen needs to be stored, the inside of the lower fixed cylinder 15 on the protective shell 4 is pressed. Button 16 can push the limiting block 12 to slide into the sliding cavity 11, while squeezing the first spring 13 to compress it. When the limiting block 12 disengages from the lower limiting groove 14 on the protective shell 4, the pen 1 can slide into the protective shell 4. When the pen 1 and pen tip 2 are completely inside the protective shell 4, the limiting block 12 will pop out under the action of the first spring 13 and engage with the upper limiting groove 14 on the protective shell 4, thus completing the storage of the pen 1 and pen tip 2, thereby providing a good protective effect for the pen tip 2. When the capacitive pen needs to be used, press the button 16 inside the upper fixing cylinder 15 on the protective shell 4 to disengage the limiting block 12 from the limiting groove 14. The pen 1 will pop out a distance under the action of the pop-out component. Then, pull the pen 1 completely out of the protective shell 4 and fix it by the limiting component. The capacitive pen can then be used normally.
[0037] like Figure 2 and Figure 5 As shown, the buffer assembly includes a damping rod 17 fixedly connected to the top of the counterweight 5. The upper end of the damping rod 17 is fixedly connected to the charging block 6. A second spring 18 is sleeved on the outer wall of the damping rod 17. The lower end of the second spring 18 is fixedly connected to the counterweight 5, and the upper end is fixedly connected to the charging block 6. When the capacitive pen is accidentally dropped to the ground, the counterweight 5 inside the protective shell 4 will cause the end of the capacitive pen closest to the charging block 6 to land first. The charging block 6 will be impacted and squeeze the damping rod 17 and the second spring 18. The cooperation of the damping rod 17 and the second spring 18 can play a good buffering and protection role for the capacitive pen, thereby effectively extending the service life of the capacitive pen.
[0038] like Figure 2 and Figure 5As shown, the pop-out component includes a third spring 19 fixedly connected to the bottom of the counterweight 5. A push plate 20 is fixedly connected to the lower end of the third spring 19. The push plate 20 is slidably connected to the inner wall of the protective shell 4. The lower end of the wire 8 is fixedly connected to the push plate 20. The bottom of the push plate 20 is fixedly connected to the second contact 10. When the pen 1 is stored inside the protective shell 4, the pen 1 will push the push plate 20 to move upward. The push plate 20 will simultaneously squeeze the third spring 19 and compress it. After the limiting component is released, the push plate 20 will pop the pen 1 a certain distance under the action of the third spring 19. Then, the pen 1 is completely pulled out from inside the protective shell 4 and fixed by the limiting component. The capacitive pen can then be used normally, making the use of the capacitive pen more convenient.
[0039] As can be seen from the above, the specific embodiments of the present invention are as follows:
[0040] When using the capacitive pen, the finger contacts the capacitive sensor 3. This contact changes the capacitance value, and the radio frequency transmitter 31 on the circuit board 30 sends an electrical pulse signal to the capacitive sensor 3. Based on the capacitance change, the circuit board 30 calculates the capacitance value between the finger and the pen tip. The circuit board 30 converts the calculated capacitance value into a digital signal and transmits it to a computer or other digital product via the signal transmission module 32 (wireless or wired). The pen tip can then be used to write or draw on tablets, mobile phones, or other electronic devices. In important events requiring approval or review, the user can use the fingerprint reader on the pen to verify their identity for approval. When the capacitive pen is not in use, pressing the button 16 inside the lower fixed cylinder 15 on the protective shell 4 pushes the limiting block 12 into the sliding cavity 11, simultaneously compressing the first spring 13. Once the limiting block 12 disengages from the lower limiting groove 14 on the protective shell 4, the pen barrel 1 can slide into the protective shell 4. When the pen barrel 1 and pen tip 2 are fully inside... After being inserted into the protective shell 4, the limiting block 12 will pop out under the action of the first spring 13 and engage with the limiting groove 14 located at the top of the protective shell 4, thus completing the storage of the pen barrel 1 and the pen tip 2, thereby providing a good protective effect for the pen tip 2. When the capacitive pen is needed, press the button 16 located inside the upper fixing cylinder 15 on the protective shell 4 to disengage the limiting block 12 from the limiting groove 14. Then, the push plate 20 will pop the pen barrel 1 a certain distance under the action of the third spring 19, and then pull the pen barrel 1 completely out of the protective shell 4. The limiting block 12 engages with the limiting groove 14 located at the bottom of the protective shell 4, which can effectively fix the pen barrel 1, and the capacitive pen can be used normally. If the capacitive pen is accidentally dropped to the ground, the counterweight block 5 inside the protective shell 4 will cause the end of the capacitive pen that is closer to the charging block 6 to land first. The charging block 6 will be impacted and squeeze the damping rod 17 and the second spring 18. The cooperation of the damping rod 17 and the second spring 18 can provide good buffering and protection for the capacitive pen, thereby effectively extending the service life of the capacitive pen.
[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A retractable protective capacitive pen with fingerprint unlocking control, comprising a pen barrel (1) and a pen tip (2), characterized in that, A capacitive sensor (3) is installed on the outer wall of the pen (1). A circuit board (30) is installed inside the pen (1). An RF transmitter (31) and a data transmission module (32) are installed on the circuit board (30). A protective shell (4) is slidably connected to the upper end of the outer wall of the pen (1). A limiting component for fixing the pen (1) inside the protective shell (4) is provided on the outer wall of the pen (1). A counterweight (5) is fixedly connected to the upper end of the inner wall of the protective shell (4). A buffer component is fixedly connected to the top of the counterweight (5). A charging block (6) is fixedly connected to the upper end of the buffer component. The charging block (6) is slidably connected to the inner wall of the protective shell (4). The upper end of the charging block (6) extends out of the protective shell (4) and is provided with a Type-C interface (7). The bottom of the counterweight (5) is fixedly connected to a pop-out component. The upper end of the pen barrel (1) is fixedly connected to a first contact (9). The bottom of the pop-out component is fixedly connected to a second contact (10) that matches the first contact (9). The bottom of the charging block (6) is fixedly connected to a wire (8). The wire (8) passes through the counterweight (5) and is fixedly connected to the counterweight (5). The lower end of the wire (8) is fixedly connected to the pop-out component.
2. The retractable protective capacitive stylus with fingerprint unlocking control according to claim 1, characterized in that: The limiting component includes a sliding cavity (11) opened at the upper end of the outer wall of the pen barrel (1). A limiting block (12) is slidably connected inside the sliding cavity (11). The pen barrel (1) extends out from one side of the limiting block (12), and a first spring (13) is fixedly connected to the other side. The other end of the first spring (13) is fixedly connected to the inner wall of the sliding cavity (11). Two limiting grooves (14) matching the limiting block (12) are opened on the protective shell (4). A fixing cylinder (15) is fixedly connected to the opening of the limiting groove (14) on the outer wall of the protective shell (4). A button (16) is slidably connected inside the fixing cylinder (15). The fixing cylinder (15) extends out from one side of the button (16), and the other side abuts against the limiting block (12).
3. The retractable protective capacitive stylus with fingerprint unlocking control according to claim 1, characterized in that: The buffer assembly includes a damping rod (17) fixedly connected to the top of the counterweight (5), the upper end of the damping rod (17) being fixedly connected to the charging block (6), and a second spring (18) sleeved on the outer wall of the damping rod (17), the lower end of the second spring (18) being fixedly connected to the counterweight (5) and the upper end being fixedly connected to the charging block (6).
4. A retractable protective capacitive stylus for fingerprint unlocking control according to claim 1, characterized in that: The pop-out assembly includes a third spring (19) fixedly connected to the bottom of the counterweight (5), a push plate (20) fixedly connected to the lower end of the third spring (19), the push plate (20) being slidably connected to the inner wall of the protective shell (4), the lower end of the wire (8) being fixedly connected to the push plate (20), and the bottom of the push plate (20) being fixedly connected to the second contact (10).
5. A retractable protective capacitive stylus for fingerprint unlocking control according to claim 1, characterized in that: A threaded post (24) is fixedly connected to the axis at the top of the pen tip (2), and a threaded hole (25) matching the threaded post (24) is opened at the lower end of the pen barrel (1).
6. A retractable protective capacitive stylus for fingerprint unlocking control according to claim 1, characterized in that: A guide block (21) is fixedly connected to the upper end of the outer wall of the pen barrel (1). A guide groove (22) matching the guide block (21) is provided on the protective shell (4). The guide block (21) extends out of the protective shell (4) from the side away from the pen barrel (1) and is fixedly connected to a moving block (23).
7. A retractable protective capacitive stylus for fingerprint unlocking control according to claim 2, characterized in that: The limiting block (12) extends out of the shaft on one side of the pen barrel (1) and is rotatably connected to a ball bearing (26).
8. A retractable protective capacitive stylus for fingerprint unlocking control according to claim 2, characterized in that: The outer wall of the button (16) is fixedly connected with a symmetrical slider (27), and the inner wall of the fixed cylinder (15) is provided with a groove (28) that matches the slider (27).
9. A retractable protective capacitive stylus with fingerprint unlocking control according to claim 6, characterized in that: There are two guide blocks (21), and the guide blocks (21) are symmetrically arranged on the upper part of the outer wall of the pen barrel (1).
10. A retractable protective capacitive pen for fingerprint unlocking control according to claim 6, characterized in that: A rubber pad (29) is fixedly connected to the side of the movable block (23) away from the guide block (21), and the rubber pad (29) has anti-slip texture.