CN115601756A

CN115601756A - Scanning pen

Info

Publication number: CN115601756A
Application number: CN202211594904.2A
Authority: CN
Inventors: 钱冠杰
Original assignee: Guangdong Genius Technology Co Ltd
Current assignee: Guangdong Genius Technology Co Ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-01-13
Anticipated expiration: 2042-12-13
Also published as: CN115601756B

Abstract

The invention discloses a scanning pen which comprises a shell assembly, a first roller, a second roller and a scanning element. The housing assembly has an extension direction; the first roller and the second roller are both mounted at one end of the shell assembly along the extending direction, the first roller and the second roller are used for abutting against a scanned surface and can roll on the scanned surface, a connecting line of a first contact point of the first roller, which is in contact with the scanned surface, and a second contact point of the second roller, which is in contact with the scanned surface, is defined as a scanning abutting line, an included angle between the scanning abutting line and the extending direction is a first inclined angle, and the first inclined angle is an acute angle; the scanning element is arranged on the shell assembly and is used for scanning the scanned surface; the first roller and the second roller are parallel to each other and form an acute angle with the extending direction.

Description

Scanning pen

Technical Field

The invention relates to the technical field of optical imaging, in particular to a scanning pen.

Background

With the rapid development of science and technology, the living standard of residents is continuously improved, and people who need to read and organize data, such as teachers, students and the like, often need to acquire information in paper data, and then need to utilize a scanning pen to shoot and identify the paper data.

The pen point part of the existing scanning pen is a plastic support with two supporting points, in the using process, the pen point supporting points and a paper surface slide relatively, the sliding friction resistance is large, the sliding process is unsmooth, the operation is inconvenient, the width size of the pen point part is large, the holding is difficult, and the holding posture is completely different from the posture of a normal pen.

Based on above-mentioned defect, current have some wand to use the design of gyro wheel nib, make to slide more smoothly, and convenience of customers slides the operation, promotes the wand and uses experience. However, the friction resistance of the roller is small, and the roller has strong guidance, so that the scanning track can be inclined towards the roller direction in the scanning process, and in addition, the scanning direction is not easy to adjust in the middle of scanning, and scanning errors are easily caused.

Disclosure of Invention

The embodiment of the invention discloses a scanning pen, which has higher scanning precision and better operation experience.

In order to achieve the above object, the present invention discloses a scanning pen, which comprises a housing assembly, a first roller, a second roller and a scanning element. The shell assembly is provided with an extending direction and is used for a user to hold the scanning pen around the extending direction; the first roller and the second roller are both mounted at one end of the housing assembly along the extending direction, the first roller and the second roller are used for being abutted against a scanned surface and can roll on the scanned surface, when the first roller and the second roller are simultaneously contacted with the scanned surface, a connecting line of a first contact point of the first roller, which is contacted with the scanned surface, and a second contact point of the second roller, which is contacted with the scanned surface, is defined as a scanning abutting line, an included angle between the scanning abutting line and the extending direction is a first inclined angle, the first inclined angle is an acute angle, the first roller can roll on the scanned surface along a first rolling surface, the second roller can roll on the scanned surface along a second rolling surface, the first rolling surface is parallel to the second rolling surface, an included angle between the first rolling surface and the extending direction is a first included angle, and an included angle between the second rolling surface and the extending direction is a second included angle; the first included angle and the second included angle are equal and acute angles; the scanning element is arranged on the shell assembly and used for scanning the scanned surface.

Compared with the prior art, the embodiment of the application provides the wand is followed casing assembly's extending direction installs first gyro wheel with the second gyro wheel can reduce the frictional resistance among the scanning process, increases the guidance quality, and the operation of being convenient for, simultaneously, first gyro wheel with the first contact point of being scanned surface contact with the second gyro wheel with the line of the second contact point of being scanned surface contact is promptly scan butt joint line with extending direction first angle of inclination is the acute angle, makes the user can hold the wand with normal pen-holding posture, promotes the wand and uses experience.

As an alternative embodiment, the first roller and the second roller are inclined toward a side of the wand close to the human body when the wand is in use, compared with the extending direction. It can be understood that when a user uses pen-like appliances such as a scanning pen, the tail end of the pen usually inclines towards one side of the human body, and the first roller and the second roller are also designed to be compared with the extending direction towards when the scanning pen is used and is close to one side of the human body, the inclination of the user in use is favorably compensated, the deviation of the roller in the rolling process is reduced, and a better scanning effect is favorably obtained.

As an alternative embodiment, the first roller rolls around a first axis, the first roller is perpendicular to the first axis, the second roller rolls around a second axis, the second roller is perpendicular to the second axis, and the first axis and the second axis are both parallel to the scanning butt line. Through the above setting, first gyro wheel with the equal perpendicular to of second gyro wheel scanning butt joint line, two promptly the gyro wheel remains vertical downwards throughout, the perpendicular to scanning butt joint line's state, no matter what the angle of the tail end of the pen when the user used the wand towards human one side slope was, two this moment the rolling direction equal perpendicular to of gyro wheel scanning butt joint line to difficult emergence is crooked, makes the scanning more accurate.

As an alternative embodiment, the first axis and the second axis are collinear. The first axis and the second axis are on the same straight line, so that the first roller and the second roller can be conveniently controlled to synchronously rotate, synchronous advance is realized, the scanning pen is not prone to being inclined, and the scanning effect is better.

As an alternative embodiment, the housing assembly includes a housing and a bracket, the housing extends along the extending direction and has a receiving cavity and an opening communicating with the receiving cavity, the bracket is located in the receiving cavity and corresponds to the opening and at least partially protrudes from the opening, and the first roller and the second roller are mounted at one end of the bracket. Through setting up the support is located accomodate the intracavity, first gyro wheel with the second gyro wheel is installed the one end of support can make the installation of support is more stable, and is convenient for the user and grips the operation.

As an optional implementation manner, an abutting part is arranged inside the housing, one end of the bracket, which is far away from the first roller and the second roller, abuts against the abutting part through an elastic part, when the first roller and/or the second roller abuts against the scanned surface, the bracket can be driven to move towards the abutting part so as to compress the elastic part, and the elastic part is used for releasing elastic force to drive the bracket to drive the first roller and/or the second roller to reset when the first roller and the second roller do not abut against the scanned surface. Through setting up the elastic component, can drive when first gyro wheel and/or the second gyro wheel supports and presses the surface of being scanned, thereby can drive the support towards the motion of butt piece compresses the elastic component, make first gyro wheel and/or the second gyro wheel with the surface contact of being scanned is inseparabler, stable, is favorable to making the scanning result more accurate.

As an optional implementation manner, the scanning pen further includes a trigger, the trigger is disposed inside the housing, one end of the bracket, which is away from the first roller and the second roller, is further provided with a convex portion, while the first roller and/or the second roller is pressed by the scanned surface so that the bracket moves toward the abutting part and compresses the elastic part, the convex portion further presses the trigger so that the trigger generates a switch signal, and the scanning pen controls the scanning element to start scanning according to the switch signal; when the first roller and/or the second roller stops pressing the scanned surface, the elastic part releases the elastic force to drive the bracket to drive the first roller and/or the second roller to reset, the convex part stops pressing the trigger part to enable the trigger part to stop generating the switch signal, and the scanning pen controls the scanning element to stop scanning. It can be understood that the trigger piece, the convex part and the elastic piece can conveniently control the scanning pen to start and stop scanning, and the user experience is high.

As an optional embodiment, the bracket includes a fixing frame, the fixing frame includes a first fixing part, a second fixing part disposed opposite to the first fixing part, and a connecting part connected between the first fixing part and the second fixing part, and the protrusion is disposed on the connecting part; the first roller and the second roller are respectively arranged on the first fixing piece and the second fixing piece; the support further comprises a cover shell, and the cover shell is connected with the shell and covers the periphery of the first roller and the second roller. Through the fixing frame, the first idler wheel and the second idler wheel can be stably fixed, the stability of the first idler wheel and the stability of the second idler wheel in the rolling process are guaranteed, and therefore the scanning accuracy of the scanning pen is guaranteed.

As an alternative embodiment, one end of the first fixing member and one end of the second fixing member have a pivot plate and a pivot connected to the pivot plate, the pivot of the first fixing member is located in the through hole of the first roller, and the pivot of the second fixing member is located in the through hole of the second roller. The pin joint mode also has the advantages of simple structure and high reliability.

As an alternative embodiment, the housing includes two housing portions corresponding to the first roller and the second roller, respectively, each housing portion has a mounting opening at one side, a roller opening at the other side, and a receiving space communicating between the mounting opening and the roller opening, and the first roller and the second roller are received in the corresponding receiving space through the corresponding mounting opening and are at least partially exposed through the corresponding roller opening, respectively. Through the housing can be right first gyro wheel with the second gyro wheel shields to form half hidden gyro wheel, not only increase apparent aesthetic property, can also avoid foreign matters such as dust to fall into the gyro wheel and lead to influencing the problem of roll smoothness degree, have compact structure, the higher advantage of product exquisite degree.

As an alternative embodiment, the roller opening is smaller in size than the first roller and the second roller. It can be understood that when the size of the roller opening is smaller than that of the first roller and the second roller, the hiding and dust-proof effects are better.

As an optional embodiment, an end surface of the cover shell on a side away from the fixing frame is an arc surface which is convex and inclined towards the side away from the fixing frame. It can be understood that the inclined arc-shaped surface can match with the first inclination angle β when the user uses the scanning pen, so that the interference between the scanning pen and the scanned surface can be reduced, the partial exposure of the first roller and the second roller is reduced, and the delicacy and the use experience are improved.

As an optional implementation manner, the bracket includes a first fixing member, a second fixing member disposed opposite to the first fixing member, a connecting member connected between the first fixing member and the second fixing member, a third fixing member, and a fourth fixing member, the protruding portion is disposed on the connecting member, each of the first fixing member and the second fixing member includes a first receiving groove at one end, a pivot hole communicated with the first receiving groove, and a fixing groove disposed at an outer side and communicated with the pivot hole, the first roller is disposed in the corresponding first receiving groove and at least partially exposed outside the first receiving groove, the first roller is fixed by passing through the corresponding pivot hole and the through hole of the first roller, and one end of the third fixing member is connected to the first rotating shaft and at least partially disposed in the corresponding fixing groove; the second rotating shaft penetrates through the corresponding pin joint hole and the through hole of the second roller to fix the second roller, and one end of the fourth fixing piece is connected with the second rotating shaft and at least partially positioned in the corresponding fixing groove. Through above-mentioned support, can earlier through two pivots will first gyro wheel with the second gyro wheel is installed at two mountings, and the rethread third mounting with two pivots are further fixed to the fourth mounting, and compact structure not only, equipment are also comparatively convenient. Accomodate through first accomodate the groove first gyro wheel with the second gyro wheel also can form half hidden effect, improves product outward appearance aesthetic property.

As an optional implementation manner, the fixing groove includes a first portion communicated with the pivot hole and a second portion communicated with the first portion and parallel to the pivot hole, and each of the third fixing member and the fourth fixing member includes a first fixing portion and a second fixing portion, the first fixing portion is matched in shape with the first portion and is disposed in the first portion, and the second fixing portion is matched in shape with the second portion and is disposed in the second portion. The fixing groove, the third fixing piece and the fourth fixing piece also have the technical effects of simple structure and higher reliability.

As an optional implementation manner, the bracket includes a fixing frame and a housing, the fixing frame includes a first fixing member, a second fixing member disposed opposite to the first fixing member, and a connecting member connected between the first fixing member and the second fixing member, one end of the first fixing member and one end of the second fixing member have a mounting groove, the housing includes two housing portions corresponding to the first roller and the second roller, respectively, the two housing portions are fixed in the mounting groove of the first fixing member and the mounting groove of the second fixing member, respectively, and the first roller and the second roller are mounted on the two housing portions, respectively. Through the support, the first idler wheel and the second idler wheel can be installed on the two cover parts through the two rotating shafts, and then the two cover parts are fixed in the corresponding mounting grooves, so that the structure is compact, and the assembly is convenient.

As an alternative embodiment, the two cover portions each include a first receiving groove at one end and a first pivot hole communicating with the first receiving groove, at least a portion of the first roller is located in the corresponding first receiving groove of the cover portion, a first pivot passes through the through hole of the first roller and the corresponding first pivot hole to fix the first roller on the corresponding cover portion, at least a portion of the second roller is located in the first receiving groove, and a second pivot passes through the through hole of the second roller and the corresponding first pivot hole to fix the second roller on the corresponding cover portion. Through first accomodate the groove accomodate first gyro wheel with the second gyro wheel also can form half hidden effect, improves the product outward appearance aesthetic property.

As an optional implementation manner, the housing includes a second base plate disposed along a first base plate and opposite to the first base plate, an outer side plate connected between the first base plate and the second base plate, and two inner side plates connected to the second base plate and disposed opposite to the second base plate, one end of the second base plate close to the bracket has a notch, the two inner side plates are respectively used for limiting and guiding the first fixing member and the second fixing member, and the two inner side plates are located between the first fixing member and the second fixing member. Through above-mentioned shell structure, two the interior side panel is right respectively first mounting with the second mounting carries on spacingly and direction, not only can dodge scanning element makes scanning element can via the breach scans, can also the butt be fixed first mounting with the second mounting increases the bulk strength and the stability of product structure.

As an optional embodiment, the casing further includes a connecting bar and a light-transmitting cover plate connected between the two inner side plates, the second substrate and the connecting bar enclose a scanning opening, the light-transmitting cover plate is installed in the scanning opening, the scanning surface of the scanning element is disposed corresponding to the light-transmitting cover plate, the two inner side plates and the light-transmitting cover plate enclose an inclined groove, and a groove depth of the inclined groove gradually increases along a direction approaching the first roller and the second roller; the light-transmitting cover plate and the extending direction form an acute angle. Through above-mentioned shell structure, two the interior plate butts respectively first mounting with the second mounting just is located first mounting with between the second mounting, not only can dodge scanning element makes scanning element can via the breach scans, can also increase the bulk strength and the stability of product structure.

As an alternative embodiment, the scanning surface of the scanning element is disposed corresponding to the transparent cover plate; a sealing ring is also arranged between the light-transmitting cover plate and the scanning opening; the other end of the first fixing piece and the other end of the second fixing piece are provided with elastic piece accommodating grooves, and the elastic pieces are located in the elastic piece accommodating grooves and abut against the groove bottom plates of the elastic piece accommodating grooves and the abutting pieces. Through the scanning opening can be installed the setting of printing opacity apron can make the scanning component via the printing opacity apron scans, improves the scanning effect, through the sealing washer can improve the leakproofness, is favorable to reaching dustproof and waterproof's effect. Through the elastic component is accomodate the groove and is accomodate the elastic component also has technical effect such as equipment convenience, compact structure.

As an alternative embodiment, the scanning element comprises a camera, and the optical axis of the camera is configured to be inclined toward a side close to the palm of the user, so that the optical axis of the camera and the extending direction have a second inclination angle therebetween, and the second inclination angle is an acute angle. It can be understood that the optical axis of the camera is perpendicular to the scanning surface and inclines towards one side close to the palm of the user, under the condition of ensuring the scanning area, the error of identification caused by inclined scanning is reduced, and the scanning effect is improved.

As an optional implementation manner, the scanning pen further includes a circuit board, the circuit board is located in the receiving cavity and electrically connected to the scanning element, one end of the circuit board close to the scanning element has a mounting opening, and the camera is disposed in the mounting opening; the scanning pen still includes button and speaker, the shell has button hole and vocal hole, the button sets up in the button hole and with the circuit board electricity is connected, the speaker is located the circuit board with between the shell, with the circuit board electricity is connected and is corresponded the vocal hole. Through the design of the structure, the internal elements of the scanning pen can be compactly assembled, and the light and thin product is facilitated.

As an alternative embodiment, each of the first roller and the second roller includes a roller body having a through hole and a bushing mounted in the through hole, and the bushing is pivotally connected to the housing assembly such that the first roller and the second roller can roll in comparison with the housing assembly; the hardness of the roller main body is greater than that of the shaft sleeve. Through the setting of axle sleeve is favorable to reducing the higher gyro wheel main part of hardness to the injury of countershaft, improves product reliability and product life.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a scanning pen according to a first embodiment of the present application;

FIG. 2 is a schematic perspective view of the wand of FIG. 1 at another angle;

FIG. 3 is an exploded view of the wand of FIG. 1;

FIG. 4 is an exploded view of the wand of FIG. 1 from another angle;

FIG. 5 is a cross-sectional view of the wand of FIG. 1;

FIG. 6 is a front view of the wand of FIG. 1;

FIG. 7 is a right side view of the wand of FIG. 1;

FIG. 8 is a schematic view of the wand of FIG. 1 in a horizontal position parallel to the surface being scanned;

FIG. 9 is a schematic view of the stylus of FIG. 1 after adjusting the rotation angle δ;

fig. 10 is a schematic perspective view of a scanning pen according to a second embodiment of the present application;

FIG. 11 is a schematic perspective view of the wand of FIG. 10 at another angle;

FIG. 12 is an exploded view of the wand of FIG. 10;

FIG. 13 is an exploded view of the wand of FIG. 10 from another angle;

FIG. 14 is a schematic diagram of the wand of FIG. 10 as it scrolls;

FIG. 15 is another schematic diagram of the wand of FIG. 10 as it scrolls;

FIG. 16 is a partially assembled schematic view of the wand of FIG. 10;

fig. 17 is a schematic perspective view of a scanning pen according to a third embodiment;

FIG. 18 is a schematic perspective view of the wand of FIG. 17 at another angle;

FIG. 19 is an exploded view of the wand of FIG. 17;

FIG. 20 is an exploded view of the wand of FIG. 17 from another angle;

FIG. 21 is a schematic perspective view of a scanning pen according to a fourth embodiment;

FIG. 22 is a schematic perspective view of the wand of FIG. 21 at another angle;

FIG. 23 is an exploded view of the wand of FIG. 21;

FIG. 24 is an exploded view of the wand of FIG. 21 from another angle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Moreover, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific type and configuration may or may not be the same), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.

Referring to fig. 1 to 5, an embodiment of the invention discloses a scanning pen 1, which includes a housing assembly 10, a first roller 20, a second roller 30 and a scanning element 40. The housing assembly 10 has an extending direction, and the housing assembly 10 is used for a user to hold the scanning pen 1 around the extending direction; the first roller 20 and the second roller 30 are both mounted at one end of the housing assembly 10 along the extending direction, the first roller 20 and the second roller 30 are used for abutting against a scanned surface and can roll on the scanned surface, when the first roller 20 and the second roller 30 are simultaneously in contact with the scanned surface, a connecting line of a first contact point of the first roller 20 with the scanned surface and a second contact point of the second roller 30 with the scanned surface is defined as a scanning abutting line, an included angle between the scanning abutting line and the extending direction is a first inclined angle, and the first inclined angle is an acute angle; and the scanning element 40 is disposed on the housing assembly 10 for scanning the scanned surface.

It can be understood that, people who need to read and organize materials, such as teachers, students, etc., can hold the housing assembly 10 and abut the first roller 20 and the second roller 30 against a scanned surface, such as a book surface, etc., on which the first roller 20 and the second roller 30 can roll, and the scanning element 40 scans and identifies characters or patterns on the scanned surface. It is understood that, in other embodiments, the first roller 20 and the second roller 30 can also slide on the scanned surface, and the scanning element 40 can also scan and identify the characters or patterns on the scanned surface.

The embodiment of the application provides wand 1 is through following the extending direction of casing assembly 10 is installed first gyro wheel 20 with second gyro wheel 30 can reduce the frictional resistance among the scanning process, increases the guidance quality, the operation of being convenient for roll, simultaneously, first gyro wheel 20 with the first contact point of being scanned surface contact with second gyro wheel 30 with the line of the second contact point of being scanned surface contact is promptly scan butt joint line with extending direction first angle of inclination is the acute angle, can make the user hold wand 1 with normal pen-holding posture to scan, promote wand 1 and use experience.

Referring to fig. 6-7, in the above embodiment, an included angle between a perpendicular line perpendicular to the scanning abutting line and the extending direction is a first inclination angle α, and when the user holds the scanning pen 1, an included angle between the extending direction and the scanned surface is a holding first inclination angle β. After the stylus pen 1 is tilted by the first tilt angle α and the holding first tilt angle β at the same time, the posture thereof is the same as that of a normal use pen. In this case, the first inclination angle α may be an acute angle, and the angle is in the range of (0, 60 degrees), preferably 20 degrees, and the user holds the wand 1 in the same posture as the normal pen-holding posture, which is good in use experience. In addition, in this grip posture, the wrist posture is relatively stable, and at this time, the scanning angle of the scanning element 40 of the scanning pen 1 does not change greatly, and the scanning accuracy is higher. Meanwhile, the scanning pen 1 is additionally provided with the first idler wheel 20 and the second idler wheel 30, so that the resistance in the sliding process is changed from sliding friction to rolling friction, the friction resistance is greatly reduced, the scanning process is smoother, and the user experience is better. Referring to fig. 8, it can be understood that the first tilt angle α is a fixed angle, preferably 20 degrees, the holding first tilt angle β is an indeterminate angle depending on the holding habit of the user, and the holding first tilt angle β varies from 0 ° to 90 ° during the use, when β =90 °, the wand 1 is in a vertical state perpendicular to the scanned surface, and at this time, the first roller 20 and the second roller 30 move horizontally, and the moving direction of the wand 1 is also horizontal; when β =0 °, the scan pen 1 is in a horizontal state parallel to the scanned surface, and at this time, the first roller 20 and the second roller 30 move in a sliding direction which forms an angle γ with the horizontal direction as an initial scanning skew angle γ, and at this time, γ = α, the scan pen 1 slides in a moving direction which forms an angle γ with the horizontal direction at this time. Therefore, in the normal use process, when the first inclination angle beta of the holding is in the range of 0-90 degrees, the moving direction of the scanning pen 1 can be deviated in the direction of an included angle gamma with the horizontal direction, and when the beta is changed between 0-90 degrees, gamma is correspondingly changed between 0-alpha. In this case, in order to make the scanning trajectory horizontal, the entire scanning pen 1 needs to be rotated counterclockwise by a rotation angle δ, and as shown in fig. 9, when δ = γ, the sliding direction of the first and

second rollers

20 and 30 may be made horizontal, and the moving direction of the scanning pen 1 may be made horizontal.

Although the motion track of the scanning pen 1 can be adjusted by adjusting the rotation angle δ to achieve the purpose of making the scanning pen 1 move horizontally, the difficulty of this adjustment is relatively high, and the initial orientation after pen drop is inclined because the initial deflection angle γ of scanning is difficult to completely offset. When the holding first inclination angle β, the scanning initial inclination angle γ, and the rotation angle δ is adjusted to be equal to or close to γ, the scanning direction may be horizontal or close to horizontal. However, when δ does not fully compensate for γ, the scan initial skew angle γ still exists, which causes the sliding track to be skewed. Once the initial state of the roller is inclined, the friction resistance of the first roller 20 and the second roller 30 is small, the scanning sliding speed is fast, the scanning time is short, and the direction is difficult to adjust in time during scanning, so that the scanning process is difficult to adjust from the inclined state to the horizontal state. In addition, in the scanning process, beta is dynamically changed, and in order to ensure the track level, the rotation angle delta is also required to be dynamically adjusted, so that the difficulty is high, and the dynamic adjustment is difficult to realize.

Referring to fig. 10-16, in a second embodiment, the scan pen 1 includes a housing assembly 10, a first roller 20, a second roller 30, and a scanning element 40. The housing assembly 10 has an extending direction, and the housing assembly 10 is used for holding the scanning pen 1 around the extending direction by a user; the first roller 20 and the second roller 30 are both mounted at one end of the housing assembly 10 along the extending direction, the first roller 20 and the second roller 30 are used for abutting against a scanned surface and can roll on the scanned surface, when the first roller 20 and the second roller 30 are simultaneously in contact with the scanned surface, a connecting line of a first contact point of the first roller 20 and the scanned surface and a second contact point of the second roller 30 and the scanned surface is defined as a scanning abutting line, an included angle between the scanning abutting line and the extending direction is a first inclined angle α, and the first inclined angle α is an acute angle.

Further, in this embodiment, the first roller 20 can roll on the scanned surface along a first rolling surface, and an included angle between the first rolling surface and the extending direction is a first included angle θ ₁ The first included angle theta ₁ Is acute angle; the second roller 30 can roll on the scanned surface along a second rolling surface, and the included angle between the second rolling surface and the extending direction is a second included angle theta ₂ The second included angle theta ₂ Is an acute angle; the first included angle theta ₁ And said second angle theta ₂ Are equal and all acute angles.

In the above embodiment, the first contact point is a point of the first roller 20 farthest from the housing assembly 10 in the extending direction; the second contact point is a point of the second roller 30 farthest from the housing assembly 10 in the extending direction.

The first roller 20 and the second roller 30 are inclined toward a side close to a human body when the wand 1 is used, compared with the extending direction. It can be understood that when a user uses a pen-like instrument such as the wand 1, the tail end of the pen is usually inclined towards one side of the human body, and the first roller 20 and the second roller 30 are also designed to be inclined towards one side of the wand 1 close to the human body when the wand is used, so that the inclination of the user when the wand is used is compensated, the deviation of the two

rollers

20 and 30 during rolling is reduced, and a better scanning effect is obtained.

As shown in fig. 14 and 15, the first roller 20 rolls around a first axis, the first roller 20 is perpendicular to the first axis, the second roller 30 rolls around a second axis, the second axis is perpendicular to the second axis, and both the first axis and the second axis are parallel to the scan junction line. Through the above setting, first gyro wheel 20 with the equal perpendicular to of second gyro wheel 30 scanning butt joint line, two promptly

gyro wheel

20, 30 remain vertical downwards all the time, the perpendicular to the state of scanning butt joint line, at this moment, no matter what the angle of the tail end of the pen when the user used wand 1 orientation human one side slope is, two the direction of roll (being the rolling surface) of

gyro wheel

20, 30 is all perpendicular to scanning butt joint line, promptly, no matter how beta changes in the within range of (0, 90), contained angle gamma satisfies gamma =0 always, and the gyro wheel can the level roll right this moment, and the direction of roll of wand does not receive the influence of beta promptly. And the pen holding posture influences the angle beta, and the scanning pen can be applicable to more crowds, and keeps the scanning orbit right and stable to difficult emergence is crooked, makes the scanning more accurate.

In this embodiment, the first axis and the second axis are collinear. The first axis and the second axis are on the same straight line, so that the first roller 20 and the second roller 30 can be conveniently controlled to synchronously rotate, and therefore the scanning pen can synchronously advance, the scanning pen is not prone to being inclined, and the scanning effect is better.

As shown in fig. 12, 13 and 16, the housing assembly 10 includes a housing 11 and a bracket 12, the housing 11 extends along the extending direction, the housing 11 has a receiving cavity 111 and an opening 112 communicating with the receiving cavity 111, the bracket 12 is located in the receiving cavity 111 and corresponding to the opening 112, and at least partially protrudes from the opening 112, and the first roller 20 and the second roller 30 are mounted at one end of the bracket 12. By arranging the bracket 12 in the accommodating cavity 111 and having one end extending through the opening 112, the first roller 20 and the second roller 30 are mounted at one end of the bracket 12, so that the bracket 12 can be mounted more stably and is convenient for a user to hold and operate.

An abutting part 115 is arranged inside the housing 11, one end of the bracket 12, which is far away from the first roller 20 and the second roller 30, abuts against the abutting part 115 through an elastic part 50, when the first roller 20 and/or the second roller 30 is pressed against the scanned surface, the bracket 12 can be driven to move towards the abutting part 115 so as to compress the elastic part 50, and the elastic part 50 is used for releasing elastic force to drive the first roller 20 and/or the second roller 30 to reset when the first roller 20 and the second roller 30 are not pressed.

The scanning pen 1 further comprises a trigger 101, the trigger 101 is disposed inside the housing 11, a convex portion 102 is further disposed at an end of the bracket 12 away from the first roller 20 and the second roller 30, the first roller 20 and/or the second roller 30 is pressed by the scanned surface, so that the bracket 12 moves toward the pressing portion 115 and compresses the elastic member 50, at the same time, the convex portion 102 further presses the trigger 101, so that the trigger 101 generates a switch signal, and the scanning pen 1 controls the scanning element 40 to start scanning according to the switch signal; when the first roller 20 and/or the second roller 30 stops pressing the scanned surface, the elastic member 50 releases the elastic force to drive the bracket 12 to drive the first roller 20 and/or the second roller 30 to reset, the protrusion 102 stops pressing the trigger 101 so that the trigger 101 stops generating the switching signal, and the scanning pen 1 controls the scanning element 40 to stop scanning. It can be understood that the trigger 101, the protrusion 102 and the elastic member 50 can control the scanning pen 1 to start and stop scanning conveniently, and the user experience is high.

Specifically, the holder 12 includes a holder 311 and a cover 312. The cover 312 is connected to the housing 11 and covers the first roller 20 and the second roller 30. Specifically, the fixing frame 311 and the housing 312 may be connected to each other by a locking member 313.

The fixing frame 311 includes a first fixing member 314, a second fixing member 315 disposed opposite to the first fixing member 314, and a connecting member 316 connected between the first fixing member 314 and the second fixing member 315. The convex part 102 is arranged on the connecting piece 316; the first roller 20 and the second roller 30 are respectively disposed on the first fixing member 314 and the second fixing member 315.

In this embodiment, one end of the first fixing member 314 and one end of the second fixing member 315 have a pivot plate 315a and a pivot 315b connected to the pivot plate 315a, the pivot 315b of the first fixing member 314 is located in the through hole of the first roller 20, and the pivot 315b of the second fixing member 315 is located in the through hole of the second roller 30. The pin joint mode also has the advantages of simple structure and high reliability.

The housing 312 includes a connecting plate 312a and two housing parts 312b respectively connected to two ends of the connecting plate 312a and respectively corresponding to the first roller 20 and the second roller 30, each housing part 312b has a mounting opening 312c on one side, a roller opening 312d on the other side, and an accommodating space 312e communicated between the mounting opening 312c and the roller opening 312d, the size of the roller opening 312d is smaller than that of the first roller 20 and the second roller 30, the first roller 20 and the second roller 30 are respectively accommodated in the corresponding accommodating space through the corresponding mounting opening 312c and are at least partially exposed through the corresponding roller opening 312 d; the other ends of the first fixing member 314 and the second fixing member 315 are provided with an elastic member accommodating groove 315c, and the elastic member 50 is located in the elastic member accommodating groove 315c and abuts between the groove bottom plate of the elastic member accommodating groove 315c and the abutting member 115. Through the fixing frame 311, the first roller 20 and the second roller 30 can be stably fixed, so that the stability of the first roller 20 and the second roller 30 in the rolling process is guaranteed, and the scanning accuracy of the scanning pen 1 is guaranteed. The first roller 20 and the second roller 30 can be shielded by the housing 312, and particularly, the size of the roller opening 312d is smaller than that of the first roller 20 and that of the second roller 30, so that a semi-hidden roller can be formed, the appearance attractiveness is improved, the problem that the rolling smoothness is affected due to the fact that dust and other foreign matters fall into the roller can be avoided, and the roller has the advantages of being compact in structure and high in product delicacy. The elastic member is received through the elastic member receiving groove 315c, and also has technical effects of convenience in assembly, compact structure and the like.

In this embodiment, the end surface of the cover 312, which is away from the side of the fixed frame, is an arc surface that protrudes and inclines towards the side away from the fixed frame, and the inclined arc surface can match with the first inclination angle β when the user uses the wand 1, so that the interference between the wand 1 and the scanned surface can be reduced, the partial exposure of the first roller 20 and the second roller 30 is reduced, and the delicacy and the use experience are improved.

The housing 11 includes a first substrate 1106, a second substrate 1107 opposite to the first substrate 1106, an outer plate 1108 connected between the first substrate 1106 and the second substrate 1107, and two inner plates 1109 connected to the second substrate 1107 and opposite to the second substrate 1107, where one end of the second substrate 1107 near the bracket has a notch 1107a, the two inner plates 1109 are respectively used to position and guide the first fixing element 314 and the second fixing element 315, and the two inner plates 1109 are located between the first fixing element 314 and the second fixing element 315, and the scanning element 40 is arranged corresponding to the notch 1107 a; the housing further includes a connecting bar 1109a and a transparent cover plate 1109b connected between the two inner side plates, the two inner side plates 1109, the second substrate 1107 and the connecting bar 1109a enclose a scanning opening 120, the transparent cover plate 1109b is installed in the scanning opening 120, and the scanning surface of the scanning element 40 is disposed corresponding to the transparent cover plate 1109b, so that the scanning area of the scanning element 40 covers the transparent cover plate 1109b and covers a predetermined area of the scanned surface through the transparent cover plate 1109 b. Through the above-mentioned housing structure, the two inner side plates 1109 respectively limit and guide the first fixing member 314 and the second fixing member 315, which not only can avoid the scanning element, so that the scanning element can scan through the gap, but also can increase the overall strength and stability of the product structure. The transparent cover plate 1109b can be installed through the scanning opening 120, so that the scanning element 40 can scan through the transparent cover plate 1109b, and the scanning effect is improved.

Further, as shown in fig. 12, it is understood that the scanning element 40 includes a camera 41, and an optical axis of the camera 41 is configured to be inclined toward a side close to the palm of the user, so that the optical axis of the camera 41 has a second inclination angle with the extending direction, and the second inclination angle is an acute angle. It can be understood that the optical axis of the camera 41 is inclined toward the side close to the palm of the user, and under the condition of ensuring the scanning area, the recognition error caused by inclined scanning is reduced, and the scanning effect is improved.

Furthermore, the scanning pen 1 further includes a circuit board 60, the circuit board 60 is located in the receiving cavity 317 of the casing 11 and electrically connected to the scanning element 40, one end of the circuit board 60 close to the scanning element 40 has a mounting opening 61, and the camera 41 is disposed in the mounting opening 61; the stylus 1 further includes a key 70 and a speaker 80, the housing 11 has a key hole 11a and a speaker hole 11b, the key 70 is disposed in the key hole 11a and electrically connected to the circuit board 60, and the speaker 80 is disposed between the circuit board 60 and the housing 11 and electrically connected to the circuit board 60 and corresponding to the speaker hole 11b. Through the design of the structure, the internal elements of the scanning pen 1 can be compactly assembled, and the light and thin products are facilitated.

In this embodiment, each of the first roller 20 and the second roller 30 includes a roller body 21 having a through hole and a bushing 23 mounted on the through hole, and the bushing 23 is pivotally connected to the housing assembly 10 such that the first roller 20 and the second roller 30 can roll in comparison with the housing assembly 10; the roller body 21 has a hardness greater than that of the sleeve 23. Specifically, the material of the roller body 21 may be metal, and the material of the bushing 23 may be plastic. Through the setting of axle sleeve 23 is favorable to reducing the higher gyro wheel main part 21 of hardness to the injury of countershaft, improves product reliability and product life.

Referring to fig. 17 to 20, in a third embodiment of the present invention, a wand 1 is provided, and the design and principle of the wand 1 of the second embodiment regarding the angle of the roller are similar, that is, the above description of the angles of the two rollers of the second embodiment is basically also applicable to the wand 1 of the third embodiment, and the above description mainly focuses on the difference between the wand 1 of the third embodiment and the wand 1 of the second embodiment.

In the third embodiment, the holder 12 for fixing the first scroll wheel 20 and the second scroll wheel 30, the internal structure of the housing 11, and the like of the scanning pen 1 are different from those in the third embodiment. Specifically, the bracket includes a first fixing member 411, a second fixing member 412 disposed opposite to the first fixing member 411, a connecting member 413 connected between the first fixing member 411 and the second fixing member 412, a first rotating shaft 414, a second rotating shaft 415, a third fixing member 416, and a fourth fixing member 417, the first fixing member 411 and the second fixing member 412 each include a first receiving groove 411a at one end, an elastic member receiving groove 411b at the other end, a pivot hole 411c communicated with the first receiving groove 411a, and a fixing groove 411d disposed at an outer side and communicated with the pivot hole 411c, the first roller 20 is disposed in the corresponding first receiving groove 411a and at least partially exposed outside the first receiving groove 411a, the first rotating shaft 414 passes through the corresponding pivot hole 411c and the through hole of the first roller 20 to fix the first roller 20, one end of the third fixing member 416 is connected to the first rotating shaft 414 and at least partially disposed in the corresponding fixing groove 411 d; the second roller 30 is disposed in the corresponding first receiving slot 411a and at least partially exposed outside the first receiving slot 411a, the second shaft 415 passes through the corresponding pivot hole 411c and the through hole of the second roller 30 to fix the second roller 30, and one end of the fourth fixing member 417 is connected to the second shaft 415 and at least partially located in the corresponding fixing slot 411 d; the fixing groove 411d includes a first portion 411e communicating with the pivot hole 411c and a second portion 411f communicating with the first portion 411e and parallel to the pivot hole 411c, the third fixing member 416 and the fourth fixing member 417 each include a first fixing portion 416a and a second fixing portion 416b, the first fixing portion 416a is shape-fitted to the first portion 411e and disposed in the first portion 411e, and the second fixing portion 416b is shape-fitted to the second portion 411f and disposed in the second portion 411 f; the elastic member 50 is located in the elastic member receiving slot 411b and abuts between the slot bottom of the elastic member receiving slot 411b and the abutting member (not shown). Through the bracket 12, the first roller 20 and the second roller 30 can be mounted on two fixing members through two rotation shafts, and then the two rotation shafts are further fixed through the third fixing member 416 and the fourth fixing member 417, so that the structure is compact, and the assembly is convenient. The first receiving groove 411a receives the first roller 20 and the second roller 30, so that a semi-concealed effect can be achieved, and the appearance of the product is more attractive. The elastic member accommodating groove 411b accommodates the elastic member 50, and has technical effects of convenience in assembly, compact structure and the like.

Referring to fig. 21 to 24, a scanner pen 1 according to a fourth embodiment of the present invention is provided, in which the design and principle of the scanner pen 1 according to the second embodiment are similar to those of the scanner pen 1 according to the second embodiment with respect to the angle of the roller, that is, the above description of the angles of the two rollers in the second embodiment is basically also applicable to the scanner pen 1 according to the fourth embodiment, and the above description mainly focuses on the differences between the scanner pen 1 according to the fourth embodiment and the scanner pen 1 according to the second embodiment.

In the fourth embodiment, the holder 12 for fixing the first roller 20 and the second roller 30, the internal structure of the housing 11, and the like of the scanning pen 1 are different from those in the third embodiment. Specifically, the stand includes a fixing frame 511, a cover case (including cover portions 512 and 513), a first rotating shaft 514, and a second rotating shaft 515, the fixing frame includes a first fixing portion 511a, a second fixing portion 511b disposed opposite to the first fixing portion 511a, and a connecting portion 511c connected between the first fixing portion 511a and the second fixing portion 511b, one end of the first fixing portion 511a and one end of the second fixing portion 511b have a mounting groove 511d, the cover portion 512 is fixed in the mounting groove 511d of the first fixing portion 511a, the cover portion 512 and the cover portion 513 each include a first receiving groove 511e at one end and a first pivoting hole 511g communicating with the first receiving groove 511e, at least a portion of the first roller 20 is located in the first receiving groove 511e of the cover portion 512, the first rotating shaft 514 passes through a through hole of the first roller 20 and the corresponding first pivoting hole 511g of the second roller portion 511b of the cover portion 512 to fix the first roller 20 to the cover portion 513, the second rotating shaft 511b is located in the mounting groove 511d of the second roller portion 511g, and the second rotating shaft 511g of the cover portion of the second roller portion 511b is located in the mounting groove 30 g of the cover portion 513; the other ends of the first fixing member 511a and the second fixing member 511b have an elastic member accommodating groove 511f, and the elastic member 50 is located in the elastic member accommodating groove 511f and abuts between the groove bottom plate of the elastic member accommodating groove 511f and the abutting member 115. Through the bracket, the first roller 20 and the second roller 30 can be installed on the cover portion 512 and the cover portion 513 through two rotating shafts, and then the cover portion 512 and the cover portion 513 are fixed in the corresponding installation grooves 511d, so that the structure is compact, and the assembly is convenient. The first receiving groove 511e receives the first roller 20 and the second roller 30, so that a semi-hidden effect can be formed, and the appearance of the product can be more attractive. The elastic member receiving groove 511f receives the elastic member 50, and has technical effects of convenience in assembly, compact structure, and the like.

In this embodiment, the light-transmitting cover plate 1109b and the scanning opening 120 are further provided with a seal ring 120a therebetween, and the seal performance can be improved by the seal ring 120a, thereby facilitating the achievement of the dustproof and waterproof effects.

The scanning pen disclosed in the embodiment of the present invention is described in detail above, and the principle and the implementation manner of the present invention are explained in this document by applying specific examples, and the description of the above embodiments is only used to help understanding the scanning pen of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A wand, comprising:

the shell assembly is provided with an extending direction and is used for a user to hold the scanning pen around the extending direction;

the first roller and the second roller are both mounted at one end of the housing assembly along the extending direction, the first roller and the second roller are used for being abutted against a scanned surface and can roll on the scanned surface, when the first roller and the second roller are simultaneously contacted with the scanned surface, a connecting line of a first contact point of the first roller, which is contacted with the scanned surface, and a second contact point of the second roller, which is contacted with the scanned surface, is defined as a scanning abutting line, an included angle between the scanning abutting line and the extending direction is a first inclined angle, the first inclined angle is an acute angle, the first roller can roll on the scanned surface along a first rolling surface, the second roller can roll on the scanned surface along a second rolling surface, the first rolling surface is parallel to the second rolling surface, an included angle between the first rolling surface and the extending direction is a first included angle, and an included angle between the second rolling surface and the extending direction is a second included angle; the first included angle and the second included angle are equal and acute angles; and

and the scanning element is arranged on the shell assembly and is used for scanning the surface to be scanned.

2. The wand of claim 1, wherein the first and second scroll wheels are tilted toward a side of the wand that is closer to a person when the wand is in use, relative to the direction of extension.

3. The wand of claim 1, wherein the first roller rolls about a first axis, the first roller is perpendicular to the first axis, the second roller rolls about a second axis, the second roller is perpendicular to the second axis, and the first axis and the second axis are both parallel to the scan butting line.

4. The wand of claim 3, wherein the first axis and the second axis are collinear.

5. The wand of claim 1, wherein the housing assembly includes a housing extending in the direction of extension and having a receiving cavity and an opening communicating with the receiving cavity, and a bracket located in the receiving cavity and corresponding to the opening and extending at least partially out of the opening, the first roller and the second roller being mounted at one end of the bracket.

6. The stylus according to claim 5, wherein an abutting member is disposed inside the casing, one end of the bracket away from the first roller and the second roller abuts against the abutting member via an elastic member, the bracket can be driven to move towards the abutting member when the first roller and/or the second roller abuts against the scanned surface, so as to compress the elastic member, and the elastic member is configured to release the elastic force to drive the bracket to drive the first roller and/or the second roller to reset when the first roller and the second roller do not abut against the scanned surface.

7. The wand of claim 6, further comprising a trigger disposed inside the housing, wherein a protrusion is disposed at an end of the bracket away from the first roller and the second roller, and the protrusion presses against the surface to be scanned to make the bracket move toward the abutment and compress the elastic member, and simultaneously presses against the trigger to make the trigger generate a switch signal, so that the wand controls the scanning element to start scanning according to the switch signal; when the first roller and/or the second roller stops pressing the scanned surface, the elastic part releases the elastic force to drive the bracket to drive the first roller and/or the second roller to reset, the convex part stops pressing the trigger part to enable the trigger part to stop generating the switch signal, and the scanning pen controls the scanning element to stop scanning.

8. The wand of claim 7, wherein the holder comprises a mounting bracket, the mounting bracket comprising a first mounting member, a second mounting member disposed opposite the first mounting member, and a connecting member connected between the first mounting member and the second mounting member, the projection being disposed on the connecting member; the first roller and the second roller are respectively arranged on the first fixing piece and the second fixing piece; the support further comprises a housing, wherein the housing is connected with the shell and covers the periphery of the first roller and the second roller.

9. The stylus of claim 8, wherein the first and second mounts have a pivot plate at one end and a pivot shaft connected to the pivot plate, the pivot shaft of the first mount being located in the through hole of the first roller, the pivot shaft of the second mount being located in the through hole of the second roller.

10. The wand of claim 8, wherein the casing includes two casing portions corresponding to the first roller and the second roller, respectively, each of the casing portions having a mounting opening on one side, a roller opening on the other side, and a receiving space communicating between the mounting opening and the roller opening, the first roller and the second roller being received in the corresponding receiving space through the corresponding mounting opening and being at least partially exposed through the corresponding roller opening, respectively.

11. The wand of claim 10, wherein the roller opening is smaller in size than the first roller and the second roller.

12. The wand of claim 10, wherein the end surface of the casing on the side away from the holder is an arcuate surface that is convex and inclined toward the side away from the holder.

13. The wand of claim 7, wherein the holder comprises a first fixing member, a second fixing member disposed opposite to the first fixing member, a connecting member connected between the first fixing member and the second fixing member, a third fixing member, and a fourth fixing member, wherein the protruding portion is disposed on the connecting member, each of the first fixing member and the second fixing member comprises a first receiving groove at one end, a pivot hole communicating with the first receiving groove, and a fixing groove disposed at an outer side and communicating with the pivot hole, wherein the first roller is disposed in the corresponding first receiving groove and at least partially exposed outside the first receiving groove, the first roller is fixed by passing through the corresponding pivot hole and the through hole of the first roller, and wherein one end of the third fixing member is connected to the first roller and at least partially disposed in the fixing groove; the second rotating shaft penetrates through the corresponding pivot hole and the through hole of the second roller to fix the second roller, and one end of the fourth fixing piece is connected with the second rotating shaft and at least partially positioned in the corresponding fixing groove.

14. The wand of claim 13, wherein the fixing groove comprises a first portion communicating with the pivot hole and a second portion communicating with the first portion and parallel to the pivot hole, and wherein the third and fourth fixing members each comprise a first fixing portion and a second fixing portion, the first fixing portion being adapted to the shape of the first portion and disposed in the first portion, and the second fixing portion being adapted to the shape of the second portion and disposed in the second portion.

15. The wand of claim 7, wherein the holder comprises a holder and a cover, the holder comprises a first fixing member, a second fixing member disposed opposite to the first fixing member, and a connecting member connected between the first fixing member and the second fixing member, one end of the first fixing member and one end of the second fixing member have mounting grooves, the cover comprises two cover portions corresponding to the first roller and the second roller, the two cover portions are fixed in the mounting grooves of the first fixing member and the mounting grooves of the second fixing member, respectively, and the first roller and the second roller are mounted on the two cover portions, respectively.

16. The stylus of claim 15, wherein each of the two housing portions includes a first receiving slot at one end and a first pivot hole communicating with the first receiving slot, at least a portion of the first roller is located in the corresponding first receiving slot of the housing portion, a first shaft passes through the through hole of the first roller and the corresponding first pivot hole to fix the first roller to the corresponding housing portion, at least a portion of the second roller is located in the corresponding first receiving slot of the housing portion, and a second shaft passes through the through hole of the second roller and the corresponding first pivot hole to fix the second roller to the corresponding housing portion.

17. The stylus according to claim 8, 13 or 15, wherein the casing comprises a second base plate disposed along the first base plate and opposite to the first base plate, an outer side plate connected between the first base plate and the second base plate, and two inner side plates connected to the second base plate and disposed opposite to each other, wherein the second base plate has a notch at an end thereof near the holder, the two inner side plates are respectively used for positioning and guiding the first fixing member and the second fixing member, and the two inner side plates are disposed between the first fixing member and the second fixing member.

18. The stylus of claim 17, wherein the housing further comprises a connecting bar and a transparent cover plate connected between the two inner plates, the second substrate and the connecting bar define a scanning opening, the transparent cover plate is mounted in the scanning opening, the scanning surface of the scanning element is disposed corresponding to the transparent cover plate, the two inner plates and the transparent cover plate define an inclined groove, and a groove depth of the inclined groove gradually increases in a direction approaching the first roller and the second roller; the light-transmitting cover plate and the extending direction form an acute angle.

19. A wand according to claim 18, wherein a sealing ring is further provided between the light-transmitting cover plate and the scanning opening; the other end of first mounting with the second mounting has the elastic component and accomodates the groove, the elastic component is located in the elastic component accomodates the groove and the butt in the groove bottom plate in groove is accomodate to the elastic component with between the butt piece.

20. The wand of claim 18, wherein the scanning element comprises a camera having an optical axis configured to be tilted toward a side proximate to a palm of a user's hand such that the optical axis of the camera has a second tilt angle with the direction of extension, the second tilt angle being an acute angle.

21. The wand of any one of claims 5-16 and 18-20, wherein the wand further comprises a circuit board, the circuit board is positioned in the receiving cavity and electrically connected with the scanning element, one end of the circuit board, which is close to the scanning element, is provided with a mounting opening, and the scanning element is arranged in the mounting opening; the scanning pen still includes button and speaker, the shell has button hole and vocal hole, the button sets up in the button hole and with the circuit board electricity is connected, the speaker is located the circuit board with between the shell, with the circuit board electricity is connected and is corresponded the vocal hole.

22. The wand of any one of claims 1-16 and 18-20, wherein the first roller and the second roller each comprise a roller body having a through-hole and a bushing mounted in the through-hole, the bushing being pivotally connected to the housing assembly such that the first roller and the second roller can roll relative to the housing assembly; the hardness of the roller body is greater than that of the shaft sleeve.