Intelligent pen with anti-misplug guide structure

Abstract

The intelligent pen comprises a hollow pen shell and a supporting pen rack provided with an adsorption type pressure sensing module, the hollow pen shell is arranged on the outer side of the supporting pen rack in a sleeved mode, the adsorption type pressure sensing module is embedded in the tail portion of the supporting pen rack, and a positioning groove is formed in the middle of one side of the supporting pen rack. A guide tube which can contain a refill and is of a rigid structure is arranged in the positioning groove, one side of the guide tube abuts against the front end of the supporting pen rack, and the other side of the guide tube corresponds to the pressure sensing module. And the tail part of the refill is propped against the pressure sensing module. According to the intelligent pen, accurate positioning of the refill is ensured through the anti-misplug guide structure, and the writing stability is improved. The rigid guide tube effectively prevents the refill from shaking and is tightly matched with the pressure sensing module, writing force changes are accurately captured, and intelligent sensing is achieved. According to the design, the writing experience is improved, and the durability and accuracy of the equipment are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of smart pens, in particular to a smart pen with an anti-misinsertion guide structure. Background Art

[0002] Smart pens can instantly digitize notes and drawings on paper and sync them to digital devices such as phones, tablets, or computers. Smart pen refills are consumable and require replacement when the ink runs out.

[0003] Smart pens bring a wider range of interactive presentations to the classroom, but they still rely on traditional ink refills. When the ink runs out, they need to be replaced with a new, undamaged refill. However, to ensure pressure sensing, smart pen refills typically use a slender metal rod, which can bend and break. If a student straightens a deformed refill and inserts it directly into the smart pen, the pressure sensor may malfunction, rendering it inoperable. The market is eagerly awaiting a smart pen with intelligent anti-misuse features that effectively prevent misuse of deformed refills. This application addresses these challenges. Utility Model Content

[0004] In view of the above problems, the present invention aims to provide a smart pen with an anti-misinsertion guide structure.

[0005] To achieve this technical objective, the present invention provides a smart pen with an anti-misinsertion guide structure, comprising a hollow pen housing and a pen support frame equipped with an adsorption-type pressure sensing module. The hollow pen housing is sleeved on the outside of the pen support frame, and the adsorption-type pressure sensing module is embedded in the rear end of the pen support frame. A positioning groove is provided in the middle of one side of the pen support frame, and a pen refill is provided in the positioning groove. A guide tube with a rigid structure capable of accommodating the pen refill is provided in the positioning groove. One side of the guide tube abuts against the front end of the pen support frame, and the other side of the guide tube corresponds to the pressure sensing module.

[0006] The tail of the pen core is in contact with the pressure sensing module. When writing, the pen core can slide up and down stably in the guide tube and cause changes in the magnetic adsorption force to trigger the pressure sensing module.

[0007] Preferably, there is a clearance fit between the outer wall of the pen core and the inner wall of the guide tube, and the length of the pen core is greater than the length of the guide tube.

[0008] Preferably, the guide tube is a metal structure, and a step guide portion is provided at the top entrance of the guide tube for easy insertion of the pen core.

[0009] Preferably, the adsorption-type pressure sensing module comprises a connecting frame, a first magnetic member mounted at the rear end of the connecting frame, a second magnetic member, and a sensing element; the connecting frame can be snap-connected to the pen refill; the rear end of the connecting frame is provided with a receiving cavity for accommodating the first magnetic member and a receiving groove for accommodating the sensing element, respectively; and the supporting pen holder is provided with a limiting groove for accommodating the second magnetic member;

[0010] At least one of the first magnetic member and the second magnetic member is a magnet, and the first magnetic member and the second magnetic member can be magnetically attracted to each other and compress the sensing element.

[0011] Preferably, a pen cap is also included.

[0012] Preferably, a camera, a battery and a control element are also installed on the support pen holder. The tail end of the support pen holder is connected to a cover, and a charging contact is provided on the cover. The sensing element, charging contact, camera and battery are electrically connected to the control element respectively.

[0013] The beneficial effects of this smart pen include a guide structure that prevents mis-insertion, ensuring precise positioning of the refill and improving writing stability. The rigid guide tube effectively prevents the refill from shaking, while also working closely with the pressure-sensing module to accurately capture changes in writing force, enabling intelligent sensing. This design not only enhances the writing experience but also increases the durability and accuracy of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is an exploded view of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 4 It is a partial enlarged view of the present utility model.

[0018] 1. Hollow pen shell; 2. Support pen holder; 3. Pressure sensing module; 301. Connecting frame; 302. First magnetic part; 303. Second magnetic part; 304. Accommodating cavity; 305. Accommodating groove; 306. Limiting groove; 4. Positioning groove; 5. Guide tube; 6. Pen core; 7. Pen cap; 8. Camera; 9. Control element; 10. Cover; 11. Charging contact. DETAILED DESCRIPTION

[0019] The utility model of this application is further described in detail below with reference to the accompanying drawings and specific embodiments. In order to clearly and completely describe the technical solution, the following embodiments are selected for illustration; other embodiments obtained based on the content recorded in this application without creative work are all within the scope of protection of this utility model.

[0020] In the following embodiments, it should be noted that the terms "up", "down", "left", "right", "inside", "outside", "top / bottom" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of clearly describing the present embodiment, and do not indicate or imply that the device or element referred to must have a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0021] like Figure 1-4 As shown, the specific embodiment of the present invention is a smart pen with an anti-misinsertion guide structure, comprising a hollow pen housing 1 and a pen holder 2 mounted with an adsorption-type pressure-sensing module 3. The hollow pen housing 1 is sleeved onto the outside of the pen holder 2 and further comprises a pen cap 7 that snaps onto the top of the hollow pen housing 1. The adsorption-type pressure-sensing module 3 is embedded in the rear end of the pen holder 2. A positioning slot 4 is provided in the middle of one side of the pen holder 2. A guide tube 5, a rigid metal structure capable of accommodating a pen refill 6, is disposed within the positioning slot 4. One side of the guide tube 5 abuts the front end of the pen holder 2, while the other side of the guide tube 5 corresponds to the pressure-sensing module 3. The guide tube 5 is a rigid structure that provides stable guidance for the pen refill 6, ensuring correct insertion and smooth movement within a predetermined trajectory.

[0022] The existing pen holder 2 is made of plastic, which is easy to process and shape, but it cannot effectively identify a bent or deformed pen refill 6. This application builds on the existing pen holder 2 by increasing the diameter of the cavity that holds the pen refill 6. At the same time, the plastic on the side of the pen holder 2 that holds the battery and motherboard is thinned and hollowed out. Ultimately, this allows the rigid metal guide tube 5 to be accommodated without changing the existing layout or strength.

[0023] The tail of the pen core 6 abuts against the pressure sensing module 3. When writing, the pen core 6 can slide up and down steadily in the guide tube 5 and cause changes in the magnetic adsorption force, thereby triggering the pressure sensing module 3. The pressure sensing module 3 quickly responds to the tiny changes caused by the expansion and contraction of the pen core 6, accurately captures the writing force, and improves the accuracy of digital notes.

[0024] A clearance fit between the outer wall of the refill 6 and the inner wall of the guide tube 5 ensures that the refill 6 can freely and smoothly extend and retract within the guide tube 5, reducing friction and resistance. The refill 6 is longer than the guide tube 5. This allows the longer refill 6 to securely abut the pressure sensing module 3 after insertion. This ensures that the rear end of the refill 6 maintains close contact with the pressure sensing module 3, accurately transmitting writing force information to the sensing module.

[0025] Among them, the top entrance of the guide tube 5 is provided with a step guide portion for easy insertion of the pen core 6. The step guide portion is a trumpet-shaped expansion structure with a wide top and a narrow bottom. Only the pen core 6 of the right size and no bending damage can pass through the step guide portion and be inserted into the guide tube 5 smoothly.

[0026] The adsorption-type pressure sensing module 3 of the present application comprises a connecting frame 301, a first magnetic member 302 mounted at the rear end of the connecting frame 301, a second magnetic member 303, and a sensing element. The connecting frame 301 can be snap-connected to the pen refill 6. The rear end of the connecting frame 301 is provided with a receiving cavity 304 for accommodating the first magnetic member 302 and a receiving groove 305 for accommodating the sensing element. The pen holder 2 is provided with a retaining groove 306 for accommodating the second magnetic member 303.

[0027] At least one of the first and second magnetic members 302, 303 is a magnet. The first and second magnetic members 302, 303 magnetically attract each other and compress the sensing element. The sensing element, a core component for detecting pressure changes, is mounted within the receiving slot 305 of the connecting frame 301, between the first and second magnetic members 302, 303. When the magnetic attraction between the two compresses the sensing element, it generates an electrical signal proportional to the writing pressure.

[0028] Due to the magnetic attraction between the two, the first magnetic element 302 moves closer to the second magnetic element 303, squeezing the sensing element located between them. This squeezing generates an electrical signal, which is transmitted through a circuit to the smart pen's processing unit. After processing, this signal is converted into a digital signal, ultimately sensing and recording writing pressure.

[0029] The pen holder 2 is also equipped with a camera 8, a battery, and a control unit 9. A cover 10 is attached to the rear end of the pen holder 2, which is equipped with charging contacts 11. The sensing element, charging contacts 11, camera 8, and battery are electrically connected to the control unit 9. The camera 8 is a key sensor in the smart pen, capturing images or video of the writing process. This can be used to record the surrounding environment, instantly scan and recognize handwritten text (such as with optical character recognition (OCR) technology), or enable more advanced interactive features such as gesture recognition or augmented reality (AR) experiences. The control unit 9 processes data from sensors such as the camera 8 and sensing element, executes user commands, and coordinates the operation of various components. It controls all functions of the smart pen, including writing pressure sensing, image capture, and data transmission. The charging contacts 11 serve as the interface between the smart pen and an external charging device, used to charge the battery. This allows the user to charge the smart pen without removing the battery, improving user convenience.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any minor modifications, equivalent replacements and improvements made to the above embodiments based on the technical essence of the present invention should be included in the scope of protection of the technical solution of the present invention.

Claims

1. A smart pen with an anti-misinsertion guide structure, comprising a hollow pen housing and a pen holder equipped with an adsorption-type pressure-sensing module, wherein the hollow pen housing is sleeved on the outside of the pen holder, and the adsorption-type pressure-sensing module is embedded in the rear end of the pen holder, characterized in that: A positioning groove is provided in the middle of one side of the pen holder, a pen core is provided in the positioning groove, a guide tube of a rigid structure capable of accommodating the pen core is provided in the positioning groove, one side of the guide tube abuts against the front end of the pen holder, and the other side of the guide tube corresponds to the pressure sensing module; The tail of the pen core is in contact with the pressure sensing module. When writing, the pen core can slide up and down stably in the guide tube and cause changes in the magnetic adsorption force to trigger the pressure sensing module.

2. The smart pen with an anti-misinsertion guide structure according to claim 1, characterized in that: There is a clearance fit between the outer wall of the pen core and the inner wall of the guide tube, and the length of the pen core is greater than the length of the guide tube.

3. The smart pen with an anti-misinsertion guide structure according to claim 1, characterized in that: The guide tube is a metal structure, and a step guide portion is provided at the top entrance of the guide tube for easy insertion of the pen core.

4. The smart pen with an anti-misinsertion guide structure according to claim 1, characterized in that: The adsorption-type pressure sensing module comprises a connecting frame, a first magnetic member mounted at the rear end of the connecting frame, a second magnetic member, and a sensing element. The connecting frame can be snap-connected to the pen refill. The rear end of the connecting frame is provided with a receiving cavity for accommodating the first magnetic member and a receiving groove for accommodating the sensing element, respectively. The pen support frame is provided with a limiting groove for accommodating the second magnetic member. At least one of the first magnetic member and the second magnetic member is a magnet, and the first magnetic member and the second magnetic member can be magnetically attracted to each other and compress the sensing element.

5. The smart pen with an anti-misinsertion guide structure according to claim 1, characterized in that: Also includes a pen cap.

6. The smart pen with an anti-misinsertion guide structure according to claim 4, characterized in that: The support pen holder is also equipped with a camera, a battery and a control element. The tail end of the support pen holder is connected to a cover, and the cover is provided with charging contacts. The sensing element, charging contacts, camera and battery are electrically connected to the control element respectively.

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