Smart Pen

Abstract

The present invention discloses an intelligent pen. An installation cavity is provided in the pen holder of the intelligent pen, and an image acquisition component, a pen core, and an elastic member are arranged in the installation cavity. When using the intelligent pen for writing, the pen core moves towards the side of the image acquisition component under the action of pressure and triggers the image acquisition component, and the image acquisition component correspondingly identifies and acquires the characters, images, and symbols on the paper surface; when in a non-writing state, the pen core moves away from the side of the image acquisition component under the action of the elastic force of the elastic member, so as to avoid the pen core from continuously triggering the image acquisition component or the pen core not returning to the initial position, thereby affecting the acquisition of the image acquisition component. At the same time, through the elastic force provided by the elastic member in the present invention, the pen core abuts against the cavity side wall of the installation cavity, that is, the clearance fit between the pen core and the pen holder is eliminated through the action of the elastic force of the elastic member, and the pen core and the pen holder are firmly attached, so that the shaking of the pen core during the writing process can be largely avoided, thereby improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent writing, and particularly relates to an intelligent pen. Background Art

[0002] With the development of technology, various intelligent devices have emerged like mushrooms after a spring rain, profoundly changing people's traditional habits. Since people are becoming more and more dependent on various intelligent devices, there is an increasing demand for the electronicization of documents. Now, various intelligent pens are available for writing or drawing on traditional paper, blackboards or objects, or on touch displays or touchscreens, and then being displayed on the touch display or display screen and saved as electronic files.

[0003] In related technologies, due to the gap between the pen core and the outer shell, during the writing process, not only will the shaking of the pen core affect writing, but it will also affect the image acquisition and recognition of the intelligent pen. Summary of the Invention

[0004] The main object of the present invention is to provide an intelligent pen, aiming to avoid the shaking of the pen core during writing and improve the stability of image acquisition and recognition.

[0005] To achieve the above object, the intelligent pen proposed by the present invention includes:

[0006] A pen holder, the pen holder is provided with an installation cavity for accommodating the pen core;

[0007] An image acquisition component, the image acquisition component is arranged in the installation cavity; and

[0008] An elastic member, the elastic member is arranged in the installation cavity and elastically abuts against the pen core. The pen core can move towards the side of the image acquisition component under the action of an external force and trigger the image acquisition component, and the elastic member provides an elastic force to make the pen core move towards the side away from the image acquisition component and abut against the cavity side wall of the installation cavity.

[0009] Optionally, the elastic member includes a spring and a limiting sleeve. The limiting sleeve is accommodated in the installation cavity, the pen core is sleeved in the limiting sleeve, and the spring is sleeved on the limiting sleeve and abuts against the cavity side wall of the installation cavity.

[0010] Optionally, a limiting protrusion is convexly formed on the surface of the limiting sleeve facing the image acquisition component, and the spring is sleeved on the limiting protrusion;

[0011] The pen core abuts against the limiting sleeve under the action of an external force, so that the limiting protrusion abuts against and triggers the image acquisition component.

[0012] Optionally, the cross-section of the limiting protrusion is gradually reduced in the direction extending towards the image acquisition component.

[0013] Optionally, the limiting sleeve includes a sleeve body and a limiting plug. The sleeve body is accommodated in the installation cavity;

[0014] The refill is sleeved in the sleeve body, and the limiting plug is detachably connected to the end of the sleeve body adjacent to the image acquisition component.

[0015] Optionally, a plug hole is provided on one side of the sleeve body facing the image acquisition component, and the limiting plug is inserted into the plug hole.

[0016] Optionally, a stop flange is convexly provided on the outer side surface of the limiting plug in the circumferential direction. When the limiting plug is inserted into the plug hole, the stop flange abuts against the surface of the sleeve body on the side facing the image acquisition component.

[0017] Optionally, an avoidance hole communicating with the installation cavity is provided at the lower end of the pen holder, and a part of the end of the refill away from the image acquisition component extends outwards through the avoidance hole;

[0018] A limiting flange is provided on the hole side wall of the avoidance hole, and the lower part of the refill can abut against the limiting flange.

[0019] Optionally, the range value of the gap formed between the limiting flange and the outer side surface of the refill is between 0.05 mm and 0.1 mm.

[0020] Optionally, the image acquisition component includes a sensor and a camera. The sensor is arranged in the installation cavity and is located above the elastic member, and the camera is communicatively connected with the sensor.

[0021] In the technical solution of the present invention, the pen holder is provided with an installation cavity, and the image acquisition component, the refill and the elastic member are arranged in the installation cavity. When using the smart pen for writing, the refill moves towards the image acquisition component under the action of pressure and triggers the image acquisition component, and the image acquisition component correspondingly identifies and acquires the characters, images and symbols on the paper surface; when not writing, the refill moves away from the image acquisition component under the action of the elastic force of the elastic member, so as to avoid the refill continuing to trigger the image acquisition component or the refill not returning to the initial position, thus affecting the acquisition of the image acquisition component. At the same time, in the present invention, through the elastic force provided by the elastic member, the refill abuts against the cavity side wall of the installation cavity, that is, the gap fit between the refill and the pen holder is eliminated through the elastic force of the elastic member, and the refill and the pen holder are firmly attached, so that the shaking of the refill during writing can be largely avoided, thereby improving the user experience. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0023] Figure 1 It is a schematic structural diagram of an embodiment of the intelligent pen of the present invention;

[0024] Figure 2 It is Figure 1 a top view of the shown intelligent pen;

[0025] Figure 3 It is Figure 1 a sectional view of the shown intelligent pen along the III-III direction;

[0026] Figure 4 It is Figure 3 a detailed enlarged view of part A in

[0027] Figure 5 It is Figure 3 a detailed enlarged view of part B in

[0028] Explanation of the reference numerals in the drawings:

[0029] Label Name Label Name 100 Smart Pen 31 Needle Tube 10 Pen Holder 32 Pen Tip 10a Installation Cavity 40 Elastic Part 10b Avoidance Hole 41 Spring 11 Pen Body 42 Limit Sleeve 12 Pen Cap 421 Sleeve Body 121 Limit Flange 421a Insertion Hole 21 Inductor 422 Limit Plug 22 Camera 4221 Limit Projection 23 PCB Board 4222 Stop Flange 30 Refill

[0030] The realization of the object, functional features and advantages of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] Referring to Figures 1 to 4 The present invention provides an intelligent pen 10.

[0035] In an embodiment of the present invention, the intelligent pen 10 includes:

[0036] A pen holder 10, the pen holder 10 is provided with an installation cavity 10a for accommodating a pen core 30;

[0037] An image acquisition component, the image acquisition component is arranged in the installation cavity 10a;

[0038] An elastic member 40, the elastic member 40 is arranged in the installation cavity 10a and elastically abuts against the pen core 30. The pen core 30 can move toward the side of the image acquisition component under the action of an external force and trigger the image acquisition component. The elastic member 40 provides an elastic force to enable the pen core 30 to move toward the side away from the image acquisition component and abut against the cavity side wall of the installation cavity 10a.

[0039] Specifically, the intelligent pen 10 of the present invention includes a pen holder 10, an image acquisition component, a pen core 30, and an elastic member 40. Among them, the pen holder 10 is integrally formed of a plastic material or a metal material. The pen holder 10 is a hollow shell structure, which extends in a cylindrical shape as a whole. An installation cavity 10a for installing the image acquisition component, the pen core 30, and the elastic member 40 is formed inside the pen holder 10. The installation cavity 10a has an opening at one end, and the opening faces the lower end of the pen holder 10.

[0040] The image acquisition component includes a sensor 21 and a camera 22. The sensor 21 is disposed in the installation cavity 10a and is located at the upper end of the installation cavity 10a, that is, on the side away from the open end of the installation cavity 10a. Among them, the sensor 21 is a pressure sensor 21, and the pressure sensor 21 is attached to the side wall of the cavity of the installation cavity 10a by an adhesive method. The camera 22 is disposed in the installation cavity 10a and is arranged adjacent to the open end of the installation cavity 10a. The camera 22 can collect images outward through the open end of the installation cavity 10a. The camera 22 is communicatively connected to the sensor 21. It can be understood that in one embodiment, the image acquisition component further includes a printed circuit board (Printed circuit boards PCB). The PCB board 23 is disposed in the installation cavity 10a. The camera 22 and the sensor 21 are connected to the PCB board 23 through connecting wires, that is, the communication connection between the two is realized through the PCB board 23, so that the structure of the smart pen 10 is relatively simple. In other embodiments, the camera 22 and the sensor 21 can also be communicatively connected through Bluetooth or wireless network, so that the structure of the smart pen 10 is more compact.

[0041] The pen core 30 includes a needle tube 31 and a pen tip 32. The needle tube 31 is disposed in the installation cavity 10a and extends toward the sensor 21 located at its upper end. The pen tip 32 is connected to the end of the needle tube 31 facing away from the sensor 21, that is, the pen tip 32 is located at the lower end of the installation cavity 10a and partially extends out of the installation cavity 10a to the outside.

[0042] When the smart pen 10 of the present invention is writing, the pen tip 32 is subjected to the pressure from the writing object, that is, it moves upward in the vertical direction. The end of the needle tube 31 facing away from the pen tip 32 abuts against the sensor 21 located above it. After the sensor 21 is triggered, it sends an electrical signal to the camera 22. After the camera 22 receives the electrical signal, it synchronously collects and recognizes the characters, symbols or images written by the user on the writing object, and converts them into an electronic document for storage. In this way, the synchronous input during the user's writing can be realized, and the office efficiency is greatly improved.

[0043] Since there will be a gap between the refill 30 and the pen holder 10, during the writing process, not only will the shaking of the refill 30 affect writing, but also due to the shaking of the refill 30, the end of the needle tube 31 cannot accurately abut against the sensor 21, thus affecting the image acquisition and recognition of the smart pen 10. In the present invention, by providing an elastic member 40 in the installation cavity 10a, the shaking of the refill 30 during use is avoided. Among them, the elastic member 40 is arranged in the installation cavity 10a and elastically abuts against the refill 30. The refill 30 moves toward the sensor 21 under the action of an external force and triggers the camera 22. The elastic member 40 provides an elastic force to make the refill 30 move toward the side away from the sensor 21 and abut against the side wall of the installation cavity 10a. In this way, by providing the elastic member 40 in the installation cavity 10a, it is possible to prevent the refill 30 from continuously triggering the image acquisition component or the refill 30 not returning to the initial position, thus affecting the acquisition by the image acquisition component. At the same time, in the present invention, due to the elastic force provided by the elastic member 40, the refill 30 abuts against the side wall of the installation cavity 10a, that is, the gap fit between the refill 30 and the pen holder 10 is eliminated by the elastic force of the elastic member 40, and the refill 30 and the pen holder 10 are firmly attached. In this way, the shaking of the refill 30 during the writing process can be largely avoided, thereby improving the user experience.

[0044] In the present invention, due to the elastic force of the elastic member 40, the refill 30 can be firmly fixed in the installation cavity 10a, thereby avoiding its shaking during the writing process. Therefore, it can be understood that by providing the elastic member 40, the refill 30 of the present invention can adopt refills 30 of different specifications, such as commercially available general water-based refills 30, instead of specially customized refills 30, thereby improving the interchangeability and versatility of the smart pen 10 and greatly facilitating the use of the user.

[0045] Specifically, in an embodiment of the present invention, the elastic member 40 includes a spring 41 and a limit sleeve 42. The limit sleeve 42 is tubular and extends along the length direction of the pen holder 10 in the installation cavity 10a. The inner diameter of the inner tube of the limit sleeve 42 is slightly larger than the outer diameter of the needle tube 31 of the refill 30, so that the needle tube 31 can be sleeved in the limit sleeve 42. In this application, a stop protrusion is formed on the lower end of the needle tube 31 along its circumferential direction. When the needle tube 31 is sleeved in the limit sleeve 42, the stop protrusion abuts against the lower surface of the limit sleeve 42 to prevent the pen tip 32 from retracting into the limit sleeve 42. The spring 41 is sleeved on the upper end of the limit sleeve 42 and elastically abuts against the side wall of the installation cavity 10a. Under the action of the elastic force of the spring 41, the lower end of the limit sleeve 42 abuts against the stop protrusion and presses the entire refill 30 toward the opening end of the installation cavity 10a, so that while the end of the refill 30 is away from the sensor 21, the refill 30 abuts against the side wall of the installation cavity 10a. In this application, the refill 30 is sleeved in the limit sleeve 42. Through the limiting and guiding action of the limit sleeve 42, when the refill 30 reciprocates in the installation cavity 10a, the movement track thereof will not deviate greatly or swing greatly, thereby further reducing the shaking amplitude of the refill 30 during writing and improving the writing experience of the user.

[0046] Please refer to again Figure 4 , in order to facilitate the disassembly and assembly of the spring 41, in an embodiment of the present invention, the limit sleeve 42 includes a detachable sleeve body 421 and a limit plug 422. Among them, the sleeve body 421 is cylindrical and extends along the length direction of the pen holder 10. The refill 30 is sleeved in the sleeve body 421. A plug hole 421a is opened at the end of the sleeve body 421 away from the pen tip 32. The whole of the limit plug 422 is cylindrically extended. One end is inserted into the plug hole 421a and fixedly connected to the sleeve body 421. A limit protrusion 4221 is formed on the surface of the limit plug 422 facing away from the sleeve body 421 and protruding toward the sensor 21. The spring 41 is sleeved on the limit protrusion 4221. One end of the spring 41 abuts against the limit plug 422, and the other end abuts against the side wall of the installation cavity 10a. It should be noted that in this application, the sensor 21 is bonded to the bottom wall of the installation cavity 10a, and a protrusion is formed on the bottom wall of the installation cavity around the circumference of the sensor 21. During writing, the refill 30 abuts against the limit sleeve 42, the limit sleeve 42 presses the limit plug 422 toward the sensor 21, the spring 41 abuts against the protrusion on the circumference of the sensor 21, and the limit protrusion 4221 continues to move toward the sensor 21 and finally abuts against and triggers the sensor 21. In this application, the spring 41 is sleeved on the limit plug 422 through the limit protrusion 4221. In this way, the structure of the elastic member 40 is relatively simple, and the disassembly and assembly operation of the spring 41 is also relatively convenient.

[0047] In an embodiment of the present invention, the cross-section of the limiting protrusion 4221 is gradually reduced in the direction towards the image acquisition component. That is, the limiting protrusion 4221 is tapered towards the sensor 21. When the spring 41 is sleeved on the limiting protrusion 4221, the lower end of the spring 41 and the lower end of the limiting protrusion 4221 are in interference fit, and the upper end of the spring 41 and the upper end of the limiting protrusion 4221 are in clearance fit. In this way, the spring 41 not only has a certain compression amount, but also can be firmly fixed on the limiting protrusion 4221 through the fixing effect of the lower end of the limiting protrusion 4221, thereby avoiding the spring 41 falling off during use and affecting the use of the smart pen 10.

[0048] It can be understood that when the sensor 21 is triggered, the limiting plug 422 is subjected to the abutting force from the sensor 21 and the elastic force of the spring 41. Therefore, in order to prevent the limiting plug 422 from being inserted too deep into the insertion hole 421a. In an embodiment of the present invention, a stop flange 4222 is circumferentially protruded on the outer side surface of the limiting plug 422, and the stop flange 4222 is continuously arranged along the circumference of the limiting plug 422. When the limiting plug 422 is inserted into the insertion hole 421a, the stop flange 4222 abuts against the surface of the sleeve body 421 towards the image acquisition component. In this way, through the limiting and stopping effect of the stop flange 4222, the situation that the limiting plug 422 is inserted too deep into the insertion hole 421a after repeatedly abutting against the sensor 21 is avoided, ensuring the stability of the use of the smart pen 10.

[0049] In some other embodiments of the present invention, an internal thread is provided on the hole side wall of the insertion hole 421a, and an external thread is provided on the outer side surface of the limiting plug 422. The limiting plug 422 is inserted into the insertion hole 421a and is threadedly connected to the sleeve body 421. In this way, not only the situation that the limiting plug 422 is inserted too deep into the insertion hole 421a can be avoided, but also the connection between the limiting plug 422 and the sleeve body 421 is more stable, thereby further improving the writing stability of the smart pen 10.

[0050] Please refer to again Figure 3 and Figure 5, in an embodiment of the present invention, the pen holder 10 includes a pen body 11 and a pen cap 12. The pen cap 12 is detachably connected to the pen body 11 and encloses the above-mentioned installation cavity 10a with the pen body 11. Among them, the pen cap 12 and the pen body 11 are connected by threads, and the pen cap 12 is also provided with an avoidance hole 10b communicating with the installation cavity 10a. When the pen refill 30 is placed in the installation cavity 10a, the limit sleeve 42 is located on the upper surface of the stop projection, and the lower surface of the stop projection abuts against the pen cap 12 under the elastic force of the spring 41. Under the action of the elastic force of the spring 41, the pen refill 30 is firmly fixed in the installation cavity 10a, so that the pen refill 30 can be further prevented from shaking during writing. At the same time, the pen cap 12 and the pen body 11 are connected by threads, making the replacement operation of the pen refill 30 relatively convenient.

[0051] In order to further improve the writing stability of the smart pen 10, in an embodiment of the present application, a limit flange 121 protrudes from the hole side wall of the avoidance hole 10b toward the pen refill 30. The lower part of the pen refill 30, that is, the part of the pen tip 32, extends outwards from the avoidance hole 10b. During the writing process, due to the action of the frictional force in the horizontal direction on the pen refill 30, the pen tip 32 part will swing in the horizontal direction. In the present application, by providing the limit flange 121, when the pen tip 32 swings in the horizontal direction, the limit flange 121 abuts against the outer side surface of the pen tip 32, so that the swing of the pen tip 32 part can be reduced, thereby further improving the writing stability.

[0052] Please refer to again Figure 5 , in an embodiment of the present invention, the range value of the gap formed between the side surface of the limit flange 121 and the outer side surface of the pen tip 32 is between 0.05 mm and 0.1 mm. Among them, the gap value can be any value among 0.05 mm, 0.075 mm, 0.08 mm, and 0.1 mm. It can be understood that when the gap range value between the limit flange 121 and the outer side surface of the pen tip 32 is less than 0.05 mm, due to the factor of machining tolerance, when the pen tip 32 extends outwards from the avoidance hole 10b, there will be a jamming situation, and further the pen refill 30 cannot be reset under the elastic force of the elastic member 40, thus affecting the use. And when the gap range value between the limit flange 121 and the outer side surface of the pen tip 32 is greater than 0.1 mm, the gap between the pen tip 32 and the limit flange 121 is too large, and further the limit flange 121 cannot play a limiting role on the pen tip 32 during writing, resulting in a large amplitude of shaking at the lower end of the pen refill 30, thus affecting writing. In the present application, by setting the gap range value between 0.05 mm and 0.1 mm, not only can the amplitude of shaking generated by the smart pen 10 during writing be reduced to accurately trigger the sensor 21,

[0053] Moreover, it can also avoid the situation that the pen refill 30 gets stuck when repeatedly triggering the sensor 21, thereby making the writing of the smart pen 10 smoother.

[0054] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An intelligent pen, characterized in that, it includes: a pen holder, which is provided with an installation cavity for accommodating a pen core; an image acquisition component, which is arranged in the installation cavity; and an elastic member, which is arranged in the installation cavity and elastically abuts against the pen core. The pen core can move towards the sensor side of the image acquisition component under the action of an external force and trigger the sensor of the image acquisition component. The elastic member provides an elastic force to make the pen core move towards the side away from the sensor of the image acquisition component and abut against the cavity side wall of the installation cavity; The elastic member includes a spring and a limit sleeve. The limit sleeve is accommodated in the installation cavity. The pen core is sleeved in the limit sleeve. The spring is sleeved on the limit sleeve and abuts against the cavity side wall of the installation cavity; A limit protrusion is convexly formed on the surface of the limit sleeve on the side facing the sensor of the image acquisition component. The spring is sleeved on the limit protrusion; The pen core abuts against the limit sleeve under the action of an external force, so that the limit protrusion abuts against and triggers the sensor of the image acquisition component; The cross section of the limit protrusion is gradually reduced along the direction extending towards the sensor of the image acquisition component; The limit sleeve includes a sleeve body and a limit plug. The sleeve body is accommodated in the installation cavity; The pen core is sleeved in the sleeve body. The limit plug is detachably connected to the end of the sleeve body adjacent to the sensor of the image acquisition component; A plug hole is provided on one side of the sleeve body facing the sensor of the image acquisition component. The limit plug is inserted into the plug hole; A stop flange is convexly formed on the outer side surface of the limit plug in the circumferential direction. When the limit plug is inserted into the plug hole, the stop flange abuts against the surface of the sleeve body on the side facing the sensor of the image acquisition component; The image acquisition component includes a sensor and a camera. The sensor is located above the elastic member. The camera is communicatively connected to the sensor.

2. The intelligent pen according to claim 1, characterized in that, a relief hole communicating with the installation cavity is opened at the lower end of the pen holder. The end portion of the pen core away from the sensor of the image acquisition component extends outwards through the relief hole; A limit flange is provided on the hole side wall of the relief hole. The lower part of the pen core can abut against the limit flange.

3. The intelligent pen according to claim 2, characterized in that, the range value of the gap formed between the limit flange and the outer side surface of the pen core is between 0.05 mm and 0.1 mm.

Images