Scanning pen

Abstract

The first aspect of the application discloses a scanning pen, comprising: a host; a scanning assembly; a rotating shaft assembly, the host and the scanning assembly are rotatably connected through the rotating shaft assembly, so that the scanning assembly rotates between a storage state and an unfolded state; in the storage state, the scanning assembly is stored in the host, and in the unfolded state, the scanning assembly can be extended out of the host; a rotation angle detection element is arranged in at least one of the host, the scanning assembly or the rotating shaft assembly, and the output value of the rotation angle detection element is used to indicate that the scanning assembly is in the storage state or the unfolded state.

Description

Technical Field

[0001] This application relates to the field of smart device technology, and more particularly to a scanning pen. Background Technology

[0002] Currently, a range of intelligent reading and learning tools, such as smart scanning pens, which can assist in learning, are very popular among users. Smart scanning pens can realize functions such as point reading, repeat reading, and follow-up reading, which are very beneficial for learning and communication.

[0003] However, most smart scanning pens in related technologies are simple pen-shaped or straight-bar shaped, with a relatively simple structure and are not easy to carry. Summary of the Invention

[0004] This application discloses a scanning pen to solve the technical problem that scanning pens in the prior art are not easy to carry, thereby improving the efficiency of using scanning pens.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] The first aspect of this application discloses a scanning pen, comprising: a main unit; a scanning component; a rotating assembly, wherein the main unit and the scanning component are rotatably connected via the rotating assembly, so that the scanning component can rotate between a retracted state and an unfolded state; in the retracted state, the scanning component is retracted into the main unit, and in the unfolded state, the scanning component can extend out of the main unit; a rotation angle detection element is disposed in at least one of the main unit, the scanning component, or the rotating assembly, and the output value of the rotation angle detection element is used to indicate whether the scanning component is in the retracted state or the unfolded state.

[0007] In some implementations, the host computer has a display screen, and the width of the display screen is greater than the width of the scanning components.

[0008] In some implementations, the scanning pen also includes a stand configuration between an extended configuration and a retracted configuration; the hinge assembly is also configured to provide a holding force to the scanning assembly to maintain it in the retracted, extended, or stand configuration.

[0009] In some embodiments, the scanning pen also includes a locking structure, through which the scanning component is locked to the host; when the locking structure is unlocked, the scanning component is ejected into a support state under the action of a retaining force that rotates away from the host, and the pivot assembly keeps the scanning component in the support state.

[0010] In some implementations, the output value of the rotation angle detection element is also used to indicate that the scanning assembly is in a support state.

[0011] In some embodiments, the scanning pen further includes a controller, disposed on the host or scanning assembly. The controller receives the output value of a rotation angle detection element and determines the rotation angle between the scanning assembly and the host based on the output value. The controller is used to control the scanning pen to enter a working mode corresponding to the rotation angle. In some embodiments, when the rotation angle is within a first angle range, the scanning assembly is in a retracted state, and the controller controls the scanning pen to enter a first working mode; when the rotation angle is within a second angle range, the scanning assembly is in a support state, and the controller controls the scanning pen to enter a second working mode; when the rotation angle is within a third angle range, the scanning assembly is in an unfolded state, and the controller controls the scanning pen to enter a third working mode.

[0012] In some implementations, the controller is used to determine the rotation angle between the scanning component and the host based on a pre-stored correspondence between output values ​​and rotation angles.

[0013] In some embodiments, the correspondence between the pre-stored output value and the rotation angle is calibrated by a calibration device. In some embodiments, the rotation angle detection element is disposed in one of the main unit and the scanning assembly, and the scanning pen also includes a magnetic component disposed in the other of the main unit and the scanning assembly; when the scanning assembly is in the unfolded state and the retracted state, the distance between the rotation angle detection element and the magnetic component is different along the thickness direction of the scanning pen.

[0014] In some embodiments, when the scanning assembly is in the unfolded state, there is a first distance between the rotation angle detection element and the magnetic element along the thickness direction of the scanning pen; when the scanning assembly is in the retracted state, there is a second distance between the rotation angle detection element and the magnetic element along the thickness direction of the scanning pen, wherein the first distance is smaller than the second distance.

[0015] In some implementations, the first distance L1 satisfies 1.1mm≤L1≤1.7mm; and / or the second distance L2 satisfies 5.7mm≤L2≤6.4mm.

[0016] In some implementations, the thickness of the rotation angle detection element is less than or equal to 0.6 mm; and / or the thickness of the magnetic element is less than or equal to 0.6 mm.

[0017] In some embodiments, the rotation angle detection element is disposed on the host, and the magnetic element is disposed on the scanning assembly; when the scanning assembly is in the unfolded state, the S pole of the magnetic element faces the rotation angle detection element, and when the scanning assembly is in the retracted state, the N pole of the magnetic element faces the rotation angle detection element.

[0018] In some embodiments, the host includes a storage slot for accommodating a scanning component, the scanning component including a scanning housing, wherein when the scanning component is in an unfolded state, at least a portion of the scanning housing faces the bottom of the storage slot and is stacked with the bottom layer of the storage slot, and a magnetic element is disposed on the inner surface of the at least portion of the scanning housing stacked with the bottom layer of the storage slot.

[0019] In some embodiments, the scanning housing includes a third housing and a fourth housing. When the scanning assembly is in a retracted state, the third housing is farther from the bottom of the storage groove than the fourth housing. When the scanning assembly is in an unfolded state, the third housing is closer to the bottom of the storage groove than the fourth housing. At least a portion of the third housing is stacked with the bottom layer of the storage groove, and a magnetic element is disposed on the inner surface of the at least portion of the third housing that is stacked with the bottom layer of the storage groove.

[0020] In some embodiments, the third housing includes a shaft cavity for accommodating the shaft assembly, and a magnetic element is disposed within the shaft cavity; the shaft assembly includes a first shaft and a second shaft, the host and the scanning assembly are rotatably connected via the first shaft and the second shaft, the first shaft and the second shaft are coaxial and spaced apart, and the magnetic element is located between the first shaft and the second shaft.

[0021] In some embodiments, the main unit includes a main unit cavity formed by the main unit housing, the main unit housing having a storage groove, and a rotation angle detection element disposed at the bottom of the storage groove, located within the main unit cavity.

[0022] In some embodiments, the pivot assembly includes a first pivot and a damping structure, the host and the scanning assembly being rotatably connected via the first pivot, the damping structure being sleeved on the first pivot, and the damping structure being configured to provide a holding force to the scanning assembly to maintain it in a retracted state, an extended state, and / or a support state.

[0023] In some embodiments, the damping structure includes an end face cam, a first reset member, and an end face concave wheel. The main unit drives one of the end face cam and the end face concave wheel to rotate, and the scanning component drives the other of the end face cam and the end face concave wheel to rotate. The end face cam and the end face concave wheel are sleeved on a first rotating shaft, and the end face cam and the end face concave wheel are arranged opposite each other. The end face cam and the end face concave wheel are pressed together by the first reset member to provide a holding force for the damping structure.

[0024] In some embodiments, the end face cam includes a first protrusion; the end face concave wheel includes a plurality of second protrusions, and a groove with a groove bottom and an inclined groove wall is formed between adjacent second protrusions, the groove including a first groove; in the retracted state, the first protrusion abuts against the inclined groove wall of the first groove, and the first protrusion has a tendency to move toward the groove bottom of the first groove to apply a holding force away from the rotation of the host to the scanning assembly, and the scanning assembly is locked to the host by a locking structure.

[0025] In some implementations, when the locking structure is unlocked, the first protrusion abuts against the bottom of the first groove, and the scanning component remains in the support state.

[0026] In some embodiments, the end face cam includes a first protrusion; the end face concave wheel includes a plurality of second protrusions, and a groove with a groove bottom and an inclined groove wall is formed between adjacent second protrusions, the groove including a second groove; in the unfolded state, the first protrusion abuts against the inclined groove wall of the second groove, and the first protrusion has a tendency to move toward the groove bottom of the second groove to apply a holding force away from the rotation of the host to the scanning assembly.

[0027] In some embodiments, the end face cam includes a third protrusion; the end face concave wheel includes a plurality of fourth protrusions, and a groove with a groove bottom and an inclined groove wall is formed between adjacent fourth protrusions, the groove including a third groove; in the retracted state, the third protrusion abuts against the inclined groove wall of the third groove, and the third protrusion has a tendency to move toward the groove bottom of the third groove to apply a holding force toward the host to the scanning assembly.

[0028] Compared with the prior art, the beneficial effects of this application are:

[0029] The scanning pen provided in this application employs a movable connection between the main unit and the scanning component, allowing both the main unit and the scanning component to have at least a retracted state and an unfolded state. When the user needs to carry it, the main unit and the scanning component can be in the retracted state for convenient carrying. When the user needs to scan for learning, because the scanning component has a grip, the main unit and the scanning component can be in the unfolded state, making it convenient for the user to hold the scanning component and perform scanning for learning.

[0030] Furthermore, because the scanning pen is equipped with a rotation angle detection element that can detect the rotation angle between the main unit and the scanning component, the scanning pen can determine the rotation angle between the main unit and the scanning component through the output value of the rotation angle detection element. This allows it to determine whether the scanning component is in an unfolded or retracted state. Therefore, the scanning pen can quickly enter the working mode corresponding to the rotation angle and switch between multiple working modes based on the rotation of the scanning component. It is evident that this method of entering the corresponding working mode by rotating the scanning component, compared to the traditional method of selecting working modes by pressing buttons or triggering icons, enables rapid activation of different working modes, thereby further improving the efficiency of the scanning device. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a three-dimensional structural diagram of the scanning pen when it is stored, as provided in the embodiments of this application;

[0033] Figure 2 yes Figure 1 A 3D structural diagram showing the storage of the scanning pen in the image;

[0034] Figure 3 yes Figure 1 One of the schematic diagrams of the three-dimensional structure of the scanning pen when unfolded;

[0035] Figure 4 yes Figure 1 The second schematic diagram of the three-dimensional structure of the scanning pen when unfolded;

[0036] Figure 5 yes Figure 4 A three-dimensional structural diagram showing the connection between the main unit housing and the scanning housing;

[0037] Figure 6 yes Figure 5 Exploded view of the central shaft assembly;

[0038] Figure 7 This is a schematic diagram of the installation position of the rotation angle detection element provided in the embodiment of this application;

[0039] Figure 8 This is a side view of the structure of the scanning component in the support state in an embodiment of this application;

[0040] Figure 9 This is a partially enlarged structural diagram of the scanning component in an embodiment of this application;

[0041] Figure 10 This is a schematic diagram showing the correspondence between the output values ​​stored in the scanning pen provided in this application embodiment and the rotation angle;

[0042] Figure 11 This is a structural schematic diagram of the mounting position of the magnetic component provided in the embodiments of this application;

[0043] Figure 12 This is one of the structural schematic diagrams showing the relative position between the rotation angle detection element and the magnetic component;

[0044] Figure 13This is the second structural schematic diagram showing the relative position between the rotation angle detection element and the magnetic component;

[0045] Figure 14 yes Figure 5 A three-dimensional structural diagram of the central shaft assembly;

[0046] Figure 15 yes Figure 6 Schematic diagram of the three-dimensional structure of the mid-end face cam Figure 1 ;

[0047] Figure 16 yes Figure 6 Schematic diagram of the three-dimensional structure of the concave wheel at the middle end face Figure 1 ;

[0048] Figure 17 yes Figure 6 Schematic diagram of the three-dimensional structure of the mid-end face cam Figure 2 ;

[0049] Figure 18 yes Figure 6 Schematic diagram of the three-dimensional structure of the concave wheel at the middle end face Figure 2 ;

[0050] Figure 19 yes Figure 6 Schematic diagram of the main structure of the engagement between the mid-end face cam and the end face concave wheel Figure 1 ;

[0051] Figure 20 yes Figure 6 Schematic diagram of the main structure of the engagement between the mid-end face cam and the end face concave wheel Figure 2 ;

[0052] Figure 21 yes Figure 6 Schematic diagram of the main structure of the engagement between the mid-end face cam and the end face concave wheel Figure 3 ;

[0053] Figure 22 yes Figure 6 Schematic diagram of the main structure of the engagement between the mid-end face cam and the end face concave wheel Figure 4 ;

[0054] Figure 23 yes Figure 6 Schematic diagram of the three-dimensional structure of the mid-end face cam Figure 3 ;

[0055] Figure 24 yes Figure 6 Schematic diagram of the three-dimensional structure of the concave wheel at the middle end face Figure 3 .

[0056] Explanation of reference numerals in the attached figures:

[0057] 01-Scanning pen; 10-Main unit; 10a-First surface; 10b-Second surface; 11-Main unit housing; 101-First housing; 102-Second housing; 11a-Slot bottom plate; 11b-Slot sidewall; 11c-Storage slot; 20-Scanning assembly; 201-Scanning window; 20b-First locking slot; 21-Scanning housing; 22-Scanning cavity; 23-Third housing; 231-Rotating shaft cavity; 24-Fourth housing; 30-Display screen; 40-Rotation angle detection element; 50-Magnetic component; 60-First locking component; 100-Rotating shaft assembly; 110-First rotating shaft; 111-Baffle; 112-Slot; 120-Second rotating shaft; 122-Busset; 123-First connecting component; 140-Damping structure; 141-End face cam; 1410-First Shaft hole; 1411-First protrusion; 14111-First outer protrusion; 14112-Second inner protrusion; 14113-Second outer protrusion; 14114-First inner protrusion; 1412-Third protrusion; 142-First reset member; 143-End face concave wheel; 1430-Second shaft hole; 1431-Second protrusion; 14311-Third outer protrusion; 14312-Fourth outer protrusion; 14313-Third inner protrusion; 14314-Fourth inner protrusion; 1432-Groove; 1432a-First groove; 1432b-Second groove; 1432c-Third groove; 1432d-Fourth groove; 1433-Groove wall; 1434-Groove bottom; 1435-Fourth protrusion; 144-Second connecting member; 145-Stop member. Detailed Implementation

[0058] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0059] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0060] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0061] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0062] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0063] This application provides a scanning pen 01. For example... Figure 1 As shown, the scanning pen 01 can have a length direction, a width direction, and a thickness direction. For ease of explanation in the following embodiments, the X direction will be used as the length direction of the scanning pen 01, the Y direction as the width direction, and the Z direction as the thickness direction. For example, the outline of the scanning pen 01 can be rectangular, with the direction of the longer side representing the length direction and the direction of the shorter side representing the width direction. Of course, the scanning pen 01 can also be set to a square or elliptical shape, etc. This application does not impose any special limitations on the specific shape of the scanning pen 01.

[0064] like Figure 2 As shown, the aforementioned scanning pen 01 may include a host 10 and a scanning component 20. Figure 2 (as shown) and display screen 30. The host 10 may have a first surface 10a and a second surface 10b that are arranged opposite to each other (as shown). Figure 2 (As shown). The host 10 and the scanning component 20 are rotatably connected. The scanning component 20 can be retracted into the second surface 10b of the host 10 in the X direction or extend beyond the second surface 10b. When the scanning component 20 is in the retracted state, the overall size of the scanning pen 01 can be reduced, making the scanning pen 01 easy to carry.

[0065] For example, such as Figure 3As shown, the host 10 may include a host housing 11, which may include a first housing 101 and a second housing 102 connected to each other. The first surface 10a may be disposed on the first housing 101, and the second surface 10b may be disposed on the second housing 102. The second housing 102 may include a bottom plate 11a and a side wall 11b, which together form a storage groove 11c located on the outside of the second housing 102. When the scanning component 20 rotates relative to the host 10 and unfolds to its unfolded state, the surface of the scanning component 20 may abut against the bottom plate 11a to limit further rotation of the scanning component 20, thereby limiting the unfolding angle of the scanning component 20.

[0066] like Figure 1 and Figure 4 As shown, the display screen 30 can be disposed on the first surface 10a of the host 10 and is electrically connected to the host 10. The display screen 30 can cover the entire first surface 10a of the host 10, that is, in the XY plane, the area of ​​the display screen 30 can be the same as the area of ​​the host 10, thereby increasing the display area.

[0067] like Figure 5 As shown, the scanning pen 01 may also include a hinge assembly 100, around which the main unit 10 and the scanning component 20 can rotate, allowing the scanning component 20 to be folded into a stowed state relative to the main unit 10, or unfolded into an unfolded state.

[0068] Specifically, such as Figure 5 As shown, the main unit housing 11 (only a portion is shown in the figure) may have a main unit cavity, which can be accessed through the first housing 101 ( Figure 3 (as shown) and the second housing 102 ( Figure 3 The first housing 101 and the second housing 102 are connected together. The connection method between the first housing 101 and the second housing 102 can be fastening, bonding, or screwing. This application embodiment does not impose any special restrictions on the connection method of the first housing 101 and the second housing 102. Scanning component 20 ( Figure 5 The device (shown) may include a scanning housing 21 (only a portion is shown in the figure), which may have a scanning cavity 22. The pivot assembly 100 may include a first pivot 110 and a second pivot 120 located on the aa axis. The first pivot 110 and the second pivot 120 may be mounted within the scanning cavity 22 and located at opposite ends of the scanning cavity 22 along the aa axis, such that one end of the main unit housing 11 and the scanning housing 21 can be hinged via the first pivot 110 and the second pivot 120. This allows the main unit 10 and the scanning assembly 20 to rotate relative to each other about the pivot assembly 100.

[0069] In some implementations, such as Figure 6As shown, the second rotating shaft 120 may include a bushing 122 and a first connecting member 123 connected together. The first connecting member 123 may be disposed at one end of the bushing 122 for connection with the scanning housing 21, and the other end of the bushing 122 may be rotatably connected to the main housing 11. Of course, the second rotating shaft 120 may also be a separate part directly bonded to the scanning housing 21 or integrally formed. This application embodiment does not impose any special restrictions on the specific structure of the second rotating shaft 120 or the connection method between the second rotating shaft 120 and the scanning housing 21.

[0070] Along the X direction, one end of the main unit 10 can be rotatably connected to one end of the scanning component 20 via the rotating shaft assembly 100, allowing the main unit 10 and the scanning component 20 to rotate relative to each other. This allows the scanning component 20 to be folded and stored in the storage slot 11c, thus placing the scanning component 20 in a stored state. The surface of the folded scanning component 20 away from the main unit 10 is flush with the second surface 10b to maintain the neat shape of the scanning pen 01. When the scanning component 20 is in the stored state, the overall size of the scanning pen 01 is reduced, making it easier to carry and improving its usage efficiency.

[0071] To enable the scanning function of the scanning pen, such as Figure 3 As shown, the scanning component 20 may include a scanning window 201, which may be positioned at the end of the scanning component 20 away from the host 10. When the scanning pen 01 is unfolded, the scanning window 201 may be on the same side as the second surface 10b facing the scanning pen 01. In this way, when the user holds the scanning pen 01, the scanning window 201 and the display screen 30 (… Figure 1 The orientations are opposite, so that when the scanning window 201 faces the object being scanned, the display screen 30 faces the user, allowing the user to learn through video while scanning. Simultaneously, when the scanning pen 01 is folded, the scanning window 201 can be stored in the storage slot 11c to prevent it from being bumped, scratched, or getting dusty.

[0072] like Figure 7 As shown, the scanning pen 01 further includes a rotation angle detection element 40, which can be disposed on at least one of the main unit 10, the scanning component 20 or the rotating shaft assembly 100. The output value of the rotation angle detection element 40 is used to determine the angle between the main unit 10 and the scanning component 20, thereby determining whether the scanning component 20 and the main unit 10 are in a retracted state or an unfolded state.

[0073] For example, the rotation angle detection element 40 can be a magnetic induction sensor, which measures magnetic field strength. A magnetic element can be placed on either the host 10 or the scanning assembly 20, and the rotation angle detection element 40 can be placed on the other. When the scanning assembly 20 switches between an unfolded state and a retracted state, the rotation angle detection element 40 can measure the change in magnetic field strength, thereby allowing the scanning pen 01 to determine the angle between the host 10 and the scanning assembly 20. Alternatively, the rotation angle detection element can be a rotary potentiometer, which can be placed on a rotating shaft assembly. The rotation angle detection element can measure the rotation parameters of the rotating shaft assembly, thereby allowing the scanning pen to determine the angle between the host and the scanning assembly. Alternatively, the rotation angle detection element can be a multi-axis sensor. In this case, the rotation angle detection element can be placed on both the host and the scanning assembly. When the scanning assembly rotates relative to the host, the acceleration values ​​and gyroscope angle values ​​output by the rotation angle detection elements on the host and the scanning assembly are different, thereby allowing the scanning pen to determine the angle between the host and the scanning assembly.

[0074] It is understood that the scanning pen 01 in this application embodiment includes a host 10 and a scanning component 20. Therefore, the scanning pen 01 in this application embodiment can have multiple working modes. For example, when the scanning component 20 is in a retracted state, the scanning pen 01 can have only the playback mode of the host 10 to meet the user's need for using a large screen in a learning scenario. When the scanning component 20 is in an unfolded state, the scanning pen 01 can also simultaneously have both the playback mode of the host 10 and the scanning mode of the scanning component 20 to meet the user's need to scan target content using the scanning component 20 and play videos or images associated with the target content through the host 10. This application embodiment does not impose any special limitations on the multiple working modes that the scanning pen 01 can have.

[0075] Because the scanning pen 01 is equipped with a rotation angle detection element 40 that can detect the rotation angle between the main unit 10 and the scanning component 20, the scanning pen 01 can determine the rotation angle between the main unit 10 and the scanning component 20 through the output value of the rotation angle detection element 40. Simultaneously, it can determine whether the scanning component 20 is in an unfolded or retracted state. Therefore, the scanning pen 01 can quickly enter the working mode corresponding to the rotation angle and switch between multiple working modes based on the rotation of the scanning component 20. It is evident that the method of entering the corresponding working mode by rotating the scanning component 20, compared to the traditional method of selecting the working mode by pressing a button or triggering an icon, enables rapid activation of different working modes, thereby further improving the efficiency of the scanning device.

[0076] Optionally, such as Figure 4As shown, along the Y direction, the width of the display screen 30 can be greater than the width of the scanning component 20. On one hand, a larger display screen 30 area on the host 10 improves the user experience. On the other hand, a smaller scanning component 20 is easier to store in the storage slot 11c. Figure 3 As shown, it can be stored in a way that also allows users with small hands to comfortably hold the scanning pen 01.

[0077] Based on this, such as Figure 8 As shown, the scanning component 20 can have a stand state. When the scanning component 20 is in the stand state, it is located between the retracted state and the unfolded state in the above embodiments. Simultaneously, in the stand state, the scanning component 20 and the host 10 have a preset angle α. For example, in the retracted state, the preset angle α between the scanning component 20 and the host 10 can be 0°. In the unfolded state, the preset angle α between the scanning component 20 and the host 10 can be 180°. Depending on factors such as the different sizes of the scanning pen 01, the different weights of the host 10, and the different weights of the scanning component 20, the preset angle α between the scanning component 20 and the host 10 in the stand state can be 10°, 15°, 18°, 20°, 25°, 30°, 45°, 60°, 80°, 120°, etc. This application embodiment does not impose any special limitations on the specific preset angle α.

[0078] When the scanning pen 01 is in the retracted, stand-up, or unfolded state, the hinge assembly 100 provides a certain holding force to the scanning component 20 in order to maintain it in these states. This holding force means that, without external force, the hinge assembly 100 can keep the scanning component 20 in a folded or unfolded state relative to the host 10; when a certain force is applied to the scanning component 20, the scanning component 20 can be kept in a folded or unfolded state relative to the host 10 through the hinge assembly 100.

[0079] For example, the hinge assembly 100 provides a holding force to the scanning component 20 by means of damping force provided by the mutual pressing of the concave wheel, cam, and elastic element, thereby providing a certain holding force to the scanning component 20. Alternatively, the hinge assembly can provide a holding force to the scanning component by means of the magnetic force between the electromagnet and magnet disposed on the hinge assembly as a damping force, thereby providing a certain holding force to the scanning component. All of the above methods of providing holding force to the scanning component by the hinge assembly can provide holding force to the scanning component at multiple positions, allowing the scanning component to maintain its current state at multiple positions, thereby meeting the user's usage needs for the scanning pen 01 in different usage scenarios.

[0080] The hinge assembly 100 provides a holding force to the scanning assembly 20, allowing the user to rotate the scanning assembly 20 to a preset angle α when using the scanning pen 01. The scanning assembly 20 can be used as a stand, supporting the host 10 on a table for easy viewing of the target content played by the host 10. Of course, the hinge assembly 100 can be set with multiple positions to create adjustable positions for the scanning assembly 20 in different stand configurations. This embodiment does not impose any special limitation on the number of rotation positions of the scanning assembly 20.

[0081] Optionally, the host 10 and the scanning component 20 can not only rotate relative to each other via the pivot assembly 100, but also be held in a fixed position by the pivot assembly 100 in a folded or unfolded state. Of course, the function of holding the host 10 and the scanning component 20 in a fixed position can also be achieved by a locking structure.

[0082] To maintain the folded state between the host 10 and the scanning component 20, as one implementation, the locking structure described above may include a first locking member 60. For example... Figure 2 As shown, the first locking member 60 can be disposed on one side of the long side of the host 10. Of course, it can also be disposed in other locations on the host 10; this embodiment does not impose any special restrictions on the specific location of the first locking member 60. Correspondingly, as... Figure 9 As shown, a first locking groove 20b that mates with the first locking member 60 can be provided on the scanning component 20. When the scanning pen 01 is folded, the host 10 and the scanning component 20 can be locked together by the engagement of the first locking member 60 and the first locking groove 20b. Specifically, the first locking member 60 can be provided on the first housing 101.

[0083] When the scanning component 20 is in the retracted state, it can be locked onto the host 10 by a locking structure to maintain its retracted state. The rotating shaft assembly 100 applies a retaining force to the scanning component 20 away from the host 10, giving the scanning component 20 a tendency to pop out away from the host 10.

[0084] When the locking structure is unlocked, the rotating shaft assembly 100 applies a retaining force to the scanning assembly 20 away from the rotation of the host 10, causing the scanning assembly 20 to rotate and maintain a preset angle α (e.g., 18°) between the scanning assembly 20 and the host 10. The scanning assembly 20 is suspended at the preset angle α position to maintain the support state, so that the scanning assembly 20 can be used as a support for the host 10, so that the user can view the target content played by the host 10.

[0085] It is understood that the output value of the rotation angle detection element 40 can also be used to indicate that the scanning component 20 and the host 10 are in a support state. By setting the range of the preset angle α, the scanning pen 01 can determine that the scanning component 20 is in a support state relative to the host 10 according to the output value of the rotation angle detection element 40. When the scanning component 20 is popped open to the range of the preset angle α after unlocking, it quickly enters the working mode corresponding to the support mode, thereby further enriching the scenarios in which the scanning pen 01 can quickly enter different working modes by rotating the scanning component 20.

[0086] To better illustrate the content of the embodiments of this application, the following embodiments will take the rotation angle detection element 40 as a Hall sensor as an example to explain in detail how the scanning pen 01 determines the rotation angle of the scanning component 20 based on the output value of the rotation angle detection element 40, and how the scanning pen 01 automatically enters different working modes.

[0087] The scanning pen 01 includes a controller, which can be implemented using at least one of a CPU (Central Processing Unit), a DSP (Digital Signal Processor), or an ASIC (Application Specific Integrated Circuit). The controller can be flexibly deployed, either within the host unit 10 or within the scanning assembly 20. The controller is electrically connected to the rotation angle detection element 40, enabling it to receive the output value from the rotation angle detection element 40.

[0088] The rotation angle detection element 40 can be disposed on either the host 10 or the scanning assembly 20, and a magnetic element 50, which can be a magnet, can be disposed on the other host 10 or the scanning assembly 20. During the rotation of the scanning assembly 20, the distance between the rotation angle detection element 40 and the magnetic element 50 is different along the thickness direction of the scanning pen 01. Therefore, the magnetic flux received by the rotation angle detection element 40 changes, thereby changing the output value of the rotation angle detection element 40.

[0089] The output value of the rotation angle detection element 40 can be a quantized numerical value, with the unit being mT (millitalis). The scanning pen 01 can have a preset correspondence between the output value of the rotation angle detection element 40 and the rotation angle. This correspondence can be as follows: Figure 10The curve shown is a monotonically increasing and decreasing curve, or it can be a monotonically increasing curve. This correspondence can be stored in the storage device of the scanning pen 01. When the controller receives the output value from the rotation angle detection element 40, it can retrieve the correspondence from the storage device and determine the rotation angle of the scanning component 20 according to the correspondence.

[0090] As shown in Table 1, when the output value of the rotation angle detection element 40 is -2.5975 mT, the corresponding rotation angle of the scanning component 20 is 0°; when the output value is -1.577 mT, the corresponding rotation angle is 60°; when the output value is -29.9 mT, the corresponding rotation angle is 170°; and when the output value is -33.57 mT, the corresponding rotation angle is 180°. Therefore, it can be seen that during the process of switching the scanning component 20 from the retracted state to the unfolded state, the output value of the rotation angle detection element 40 shows a monotonically decreasing trend, while the magnetic flux shows an increasing trend. Each output value corresponds to an angle, thus ensuring that the rotation angle detection element 40 can accurately detect the rotation angle of the scanning component 20. Of course, the output value of the rotation angle detection element 40 can also be a monotonically increasing curve, as long as each output value corresponds to an angle.

[0091] Table 1

[0092] angle Output value (mT) angle Output value (mT) angle Output value (mT) 0 2.5975 70 -2.72941 140 -14.2234 10 1.7544 80 -3.38961 150 -18.6857 20 1.37845 90 -4.2049 160 -24.2445 30 0.82531 100 -5.24498 170 -29.9295 40 -0.22878 110 -6.60183 180 -33.5764 50 -0.87311 120 -8.36923 60 -1.5775 130 -10.8106

[0093] As described above, the scanning pen 01 can include multiple working modes, and the controller can set multiple control commands. Each control command is associated with the range of rotation angle and the working mode. When the controller determines that the rotation angle of the scanning component 20 is within a certain angle range through the output value of the rotation angle detection element 40, the controller executes the corresponding control command to make the scanning pen 01 enter the corresponding working mode.

[0094] Optionally, when the controller determines that the rotation angle of the scanning component 20 is within a first angle range based on the output value of the rotation angle detection element 40, the controller determines that the scanning component 20 is in a retracted state, and the controller controls the scanning pen 01 to automatically enter the first working mode among multiple working modes. The first angle range can be 0° to 5°, or the first angle range can be other angle ranges close to 0°.

[0095] The first operating mode of the scanning pen 01 can include the main unit 10 being in a first playback mode or a standby mode, and the scanning component 20 being in a standby mode. Specifically, the standby mode of the main unit 10 can refer to the main unit 10 being in a non-wake-up mode, which typically means that the display screen 30 on the main unit 10 is turned off, or the display screen 30 can display the time but does not perform other related operations. The standby mode of the scanning component 20 can refer to a mode in which the scanning function is not activated.

[0096] If the controller determines that the rotation angle of the scanning component 20 has re-entered the first angle range from another angle range, it indicates that the host 10 has been activated previously. At this time, the host 10 can also be in the first playback mode. The first playback mode may include a desktop display mode, that is, displaying an icon of the first application that matches the state of the scanning component 20 in the display screen 30. The first application may be an application unrelated to the scanning function, such as a vocabulary book or a listening aid. When the user triggers the icon of the first application, the host 10 can execute the corresponding application.

[0097] Optionally, when the controller determines that the rotation angle of the scanning component 20 is within the second angle range based on the output value of the rotation angle detection element 40, the controller determines that the scanning component 20 is in the support state, and the controller controls the scanning pen 01 to automatically enter the second working mode among multiple working modes. This second angle range is also the selection range of the aforementioned preset angle α, which can be from 10° to 120°. This application embodiment does not impose any special limitations on the second angle range.

[0098] When the scanning pen 01 is in the second working mode, the host 10 can enter the second playback mode, and the scanning component 20 is in standby mode. The second playback mode of the host 10 can play first target content, which includes any one or more of video, audio, or images.

[0099] As mentioned above, the stand state of the scanning component 20 can include multiple different hover positions. After the scanning component 20 is unlocked by the locking structure, it can reach the first position of the stand state. The user can continue to rotate the scanning component 20 to reach other different hover positions. Correspondingly, the second working mode can also include multiple second sub-working modes corresponding to multiple positions. In each second sub-working mode, the host 10 can be in a different second sub-playback mode, that is, the host 10 can play different first target content, and the scanning component 20 can remain in standby mode.

[0100] For example, when the controller determines that the rotation angle of the scanning component 20 is between 10° and 30°, this can be considered as the first position automatically reached after the scanning component 20 is unlocked. The second sub-playback mode that the controller controls the host 10 to automatically enter can be an audio playback mode. The user can continue to rotate the scanning component 20 to the next position. When the controller determines that the rotation angle of the scanning component 20 is between 31° and 60°, the second sub-playback mode that the controller controls the host 10 to automatically enter can be a video playback mode. The user can continue to rotate the scanning component 20 to the next position. When the controller determines that the rotation angle of the scanning component 20 is between 61° and 90°, the second sub-playback mode that the controller controls the host 10 to automatically enter can be a photo album image display mode. When the controller determines that the rotation angle of the scanning component 20 is between 91° and 120°, the second sub-playback mode that the controller controls the host 10 to automatically enter can be a content recommendation display mode. Thus, after the scanning component 20 is unlocked by the locking structure and is in the support mode, the second working mode entered by the scanning pen 01 can have a richer selection of modes.

[0101] Optionally, when the controller determines that the rotation angle of the scanning component 20 is within the third angle range based on the output value of the rotation angle detection element 40, the controller determines that the scanning component 20 is in the unfolded state, and the controller controls the scanning pen 01 to automatically enter the third working mode among multiple working modes. This third angle range can be 170° to 180°, or other angle ranges close to 180°.

[0102] When the scanning pen 01 is in the third working mode, the host 10 can enter the third playback mode, and the scanning component 20 is in scanning mode. The third playback mode of the host 10 includes playing second target content, which is associated with the scanned content acquired by the scanning component 20.

[0103] For example, the second target content can be the parsed content of the scanned content, so that the scanning pen 01 can help users quickly get the answer, improving learning efficiency and learning experience. Alternatively, the second target content can also be the grading result of the scanned content. The grading result may include scores, correctness, etc.

[0104] It should be noted that the controller can not only control the scanning pen 01 to enter the corresponding working mode, but also control the scanning pen 01 to switch between multiple working modes.

[0105] For example, when the locking structure is unlocked, the scanning component 20 is ejected into the support state under the holding force that rotates away from the host 10, and the rotating shaft assembly 100 keeps the scanning structure in the support state. The controller determines that the rotation angle changes from a first angle range to a second angle range, and switches the working mode of the scanning pen 01 from the first working mode to the second working mode. That is, the scanning pen 01 can be woken up from the standby mode and quickly enter the working mode corresponding to the support state.

[0106] In order to wake up the scanning pen 01 from the first working mode to the second working mode in a timely manner, when the rotation angle of the scanning component 20 reaches the first position of the support state, the rotation angle detection element 40 can be set to output a first level signal to the controller, so that the controller can switch the scanning pen 01 to the second working mode in a timely manner.

[0107] When the scanning component 20 rotates from a retracted state to an unfolded state relative to the host 10 via the rotating shaft assembly 100, the controller determines that the rotation angle has changed from a first angle range to a third angle range. The controller then switches the operating mode of the scanning pen 01 from the first operating mode to the third operating mode, and the scanning pen 01 can be woken up from standby mode to scanning mode. Similarly, when the rotation angle of the scanning component 20 reaches the unfolded state, the rotation angle detection element 40 can be set to output a second level signal to the controller, so that the controller can switch the scanning pen 01 to the third operating mode in a timely manner.

[0108] When the scanning component 20 rotates from the support state to the unfolded state relative to the host 10 via the rotating shaft component 100, the controller determines that the rotation angle changes from the second angle range to the third angle range, and the controller switches the working mode of the scanning pen 01 from the second working mode to the third working mode.

[0109] In this way, the controller associates the rotation angle of the scanning component 20 with multiple working modes, and controls the scanning pen 01 to enter the corresponding working mode according to the range of the rotation angle of the scanning component 20. Furthermore, the working mode of the scanning pen 01 can switch between multiple working modes as the scanning component 20 rotates. This is different from the way related technologies switch the working mode of electronic devices through buttons or icons, thereby further improving the efficiency of the scanning pen 01 entering different working modes.

[0110] To further improve the detection accuracy and reliability of the rotation angle detection element 40, the specific form of the rotation angle detection element 40 is described in detail below in this application embodiment.

[0111] Specifically, the rotation angle detection element 40 is a Hall sensor. The Hall sensor can receive the magnetic field generated by the magnetic component 50 and output different values ​​based on the different amounts of magnetic flux received. For example... Figure 12 , Figure 13 and Figure 14 As shown, when the scanning component 20 is in the unfolded state, there is a first distance between the rotation angle detection element 40 and the magnetic element 50 along the thickness direction of the scanning pen 01; when the scanning component 20 rotates relative to the host 10 and is in the retracted state, there is a second distance L2 between the rotation angle detection element 40 and the magnetic element 50 along the thickness direction of the scanning pen 01, and the first distance L1 is smaller than the second distance L2.

[0112] In other words, when the scanning component 20 is in the retracted state, the distance between the rotation angle detection element 40 and the magnetic element 50 is relatively large, so the magnetic flux received by the rotation angle detection element 40 is relatively small. When the scanning component 20 rotates relative to the host 10 and is in the unfolded state, the distance between the rotation angle detection element 40 and the magnetic element 50 is relatively small, so the magnetic flux received by the rotation angle detection element 40 is relatively large.

[0113] In this way, during the process of the scanning component 20 switching from the retracted state to the unfolded state, the magnetic flux received by the rotation angle detection element 40 increases, thereby ensuring that the detection of the scanning component 20 rotating to the unfolded state by the rotation angle detection element 40 is more timely and accurate. This allows the controller to determine in time that the scanning component 20 is in the unfolded state based on the output value of the rotation angle detection element 40, so as to switch the scanning pen 01 from the aforementioned first working mode to the third working mode in a timely manner. That is, when the user rotates the scanning component 20 to the unfolded state, the scanning pen 01 can be automatically and quickly woken up from the standby mode.

[0114] Optionally, the first distance L1 can satisfy 1.1mm ≤ L1 ≤ 1.7mm. Specifically, the first distance L1 can be 1.1mm, 1.2mm, 1.4mm, 1.6mm, or 1.7mm. Obviously, the smaller first distance L1 between the rotation angle detection element 40 and the magnetic element 50 allows the rotation angle detection element 40 to receive a stronger magnetic field, thereby reducing the size requirements of both the magnetic element 50 and the rotation angle detection element 40, allowing both the rotation angle detection element 40 and the magnetic element 50 to be further miniaturized.

[0115] Optionally, the second distance L2 satisfies 5.7mm ≤ L2 ≤ 6.4mm. Specifically, the second distance L2 can be 5.7mm, 5.9mm, 6.1mm, 6.3mm, or 6.4mm. The second distance L2 between the rotation angle detection element 40 and the magnetic element 50 can ensure that the rotation angle detection element 40 can receive the magnetic field of the magnetic element 50, and can further reduce the maximum distance between the rotation angle detection element 40 and the magnetic element 50, so that the scanning pen 01 can be further miniaturized.

[0116] Based on the first distance L1 and the second distance L2 between the rotation angle detection element 40 and the magnetic element 50, the thickness of the rotation angle detection element 40 can be reduced to less than or equal to 0.6 mm, and the thickness of the magnetic element 50 can also be reduced to less than or equal to 0.6 mm, thereby reducing the space occupation requirements of the rotation angle detection element 40 and the magnetic element 50 on the scanning pen 01.

[0117] In an alternative embodiment, such as Figure 7 , Figures 11 to 13 As shown, the rotation angle detection element 40 is disposed on the host 10, and the magnetic element 50 is disposed on the scanning assembly 20. When the scanning assembly 20 is in the unfolded state, the S pole of the magnetic element 50 faces the rotation angle detection element 40. When the scanning assembly 20 is in the retracted state, the N pole of the magnetic element 50 faces the rotation angle detection element 40.

[0118] Since the magnetic component 50 can rotate synchronously with the scanning assembly 20, the direction of the magnetic flux received by the rotation angle detection element 40 changes. As a result, the output of the rotation angle detection element 40 decreases monotonically during the process of the scanning assembly 20 rotating from the retracted state to the unfolded state. This allows the controller to determine the rotation angle of the scanning assembly 20 based on the output value of the rotation angle detection element 40. Furthermore, when the scanning assembly 20 is in the unfolded state, the rotation angle detection element 40 can obtain a stronger magnetic flux, thus enabling the rotation angle detection element 40 to have a more accurate detection result for the unfolded state of the scanning assembly 20.

[0119] In conjunction with the above embodiments, the host 10 is provided with a storage slot 11c, and the scanning component 20 is stored in the storage slot 11c in the storage state. The host 10 includes a host cavity formed by the host housing 11, and the host housing 11 forms a storage slot 11c. The rotation angle detection element 40 is disposed at the bottom of the storage slot 11c and located inside the host cavity 10, thereby avoiding the rotation angle detection element 40 being exposed to the host 10.

[0120] like Figure 5 As shown, the scanning assembly 20 includes a scanning housing 21. When the scanning assembly 20 is in the unfolded state, at least a portion of the scanning housing 21 faces the bottom of the storage slot 11c and is stacked on top of the bottom of the storage slot 11c. That is, in the Z-axis direction of the scanning pen 01, at least a portion of the projection of the scanning housing 21 onto the host 10 falls into the storage slot 11c, and the magnetic element 50 is disposed on the inner surface of this portion of the scanning housing 21. The bottom of the storage slot 11c can be formed entirely by the bottom plate 11a, or it can be formed by other structural components connected to the bottom plate 11a and forming the bottom of the storage slot 11c.

[0121] It is understandable that, since the scanning housing 21 is in the retracted state and faces the bottom of the storage slot 11c, even after the magnetic component 50 is placed in the scanning housing 21 and rotated to the unfolded state, the portion of the scanning housing 21 stacked with the storage slot 11c still faces the bottom of the storage slot 11c. This ensures that the magnetic field of the magnetic component 50 can be detected by the rotation angle detection element 40 located at the bottom of the storage slot 11c, regardless of whether the scanning component 20 is in the retracted state, the support state, or the unfolded state. This allows the rotation angle detection element 40 to always detect the rotation angle between the scanning component 20 and the host 10.

[0122] Furthermore, such as Figure 11 and Figure 14 As shown, along the thickness direction of the scanning assembly 20, i.e., the Z-axis direction, the scanning housing 21 is divided into a third housing 23 and a fourth housing 24. The third housing 23 and the fourth housing 24 are fastened together to form the scanning housing 21, and a scanning element can be disposed inside the scanning housing 21. When the scanning assembly 20 is in the retracted state, the third housing 23 is farther away from the bottom of the storage groove 11c than the fourth housing 24, that is, the fourth housing 24 is opposite to the bottom of the storage groove 11c. When the scanning assembly 20 is in the unfolded state, the third housing 23 is closer to the bottom of the storage groove 11c than the fourth housing 24, that is, at least a portion of the third housing 23 is stacked on the bottom of the storage groove 11c, which is equivalent to a portion of the third housing 23's orthogonal projection onto the bottom of the storage groove 11c. The magnetic element 50 is disposed on the inner surface of this portion of the third housing 23.

[0123] Thus, by placing the magnetic component 50 on the part of the third housing 23 that is opposite to the storage slot 11c when the scanning component 20 is in the unfolded state, it can be ensured that the magnetic component 50 is close to the rotation angle detection element 40 when the scanning component 20 is in the unfolded state, and the magnetic flux received by the rotation angle detection element 40 is large. This ensures that the rotation angle detection element 40 detects the unfolded state of the scanning component 20 more timely and accurately, so that the controller can switch the working mode of the scanning pen 01 to the third working mode in a timely manner.

[0124] Furthermore, such as Figure 11As shown, the third housing 23 includes a shaft cavity 231 for accommodating the shaft assembly 100, and the magnetic element 50 is disposed within the shaft cavity 231. The shaft assembly 100 includes a first shaft 110 and a second shaft 120. The host 10 and the scanning component 20 are rotatably connected via the first shaft 110 and the second shaft 120. The first shaft 110 and the second shaft 120 are coaxial and spaced apart, and the magnetic element 50 is located between the first shaft 110 and the second shaft 120. In this way, the magnetic element 50 is positioned to avoid the shaft assembly 100, and the placement of the magnetic element 50 neither affects the rotation of the shaft assembly 100 nor fails to make reasonable use of the space created by the spaced arrangement of the first shaft 110 and the second shaft 120.

[0125] To improve the accuracy of the correspondence between the output value and the rotation angle of the rotation angle detection element 40, and to ensure the reliability of the rotation angle detection element 40, the calibration process for the correspondence between the output value and the rotation angle is described in detail below in this embodiment of the application.

[0126] Considering the inherent error of the magnetic component 50 and the assembly tolerances generated during the assembly process of the scanning pen 01, these factors will affect the accuracy of the rotation angle determined based on the output value of the rotation angle detection element 40. Therefore, a calibration device can be installed on the production line of the scanning pen 01 to calibrate the rotation angle detection element 40, so that the correspondence between the output value and the rotation angle stored in the storage device of the scanning pen 01 is more accurate.

[0127] For the scanning pen 01, timely detection of the scanning component 20 being in the unfolded state allows it to promptly switch to the third working mode, enabling scanning, and thus waking up the scanning pen 01. Therefore, the following explanation uses the rotation angle of the scanning component 20 near the unfolded state as an example for calibration. For instance, calibration can be performed at 173° to ensure sufficient margin for the scanning component 20 to be woken up in the unfolded state. The calibration process is as follows:

[0128] The scanning component 20 of the scanning pen 01 is rotated to 173° and then placed in the calibration device. The output value of the rotation angle detection element 40 in the current state is read, for example, the output value of the rotation angle detection element 40 in the current state is -30mT. The calibration device saves this output value to the storage device described in the above embodiment and simultaneously writes it to the rotation angle detection element 40.

[0129] To ensure the reliability of the calibration process, the scanning pen 01 can be tested and verified using a calibration device to verify the detection accuracy of the rotation angle detection element 40. The verification process is as follows: Rotate the scanning component 20 of the scanning pen 01 to 180°. Theoretically, the output value of the rotation angle detection element 40 should be less than -30mT. A deviation of 2mT can be set. When the output value of the rotation angle detection element 40 is -32mT, the rotation angle detection element 40 passes the verification. Similarly, the scanning component 20 of the scanning pen 01 can be rotated to 170°. Theoretically, the output value of the rotation angle detection element 40 should be greater than -30mT. A deviation of 1mT can be set. When the output value of the rotation angle detection element 40 is -29mT, the rotation angle detection element 40 passes the verification. The above calibration and verification process uses 173° as an example. In actual operation, other angles can be selected as needed to calibrate and verify the rotation angle detection element 40.

[0130] To improve the calibration efficiency of the calibration device, it is possible to measure the output value of the rotation angle detection element 40 at some angles, while using simulated output values ​​for other angles. This will give us a simulated but highly accurate correspondence between the output value and the rotation angle. This simulated correspondence can be stored in the storage device of the scanning pen 01 as a basis for the controller to determine the rotation angle of the scanning component 20.

[0131] For example, some angles between 0° and 180° can be selected for calibration. For instance, the scanning component 20 can be rotated to 0°, 30°, 60°, 90°, 120°, 150°, and 180° to measure the output value of the rotation angle detection element 40, thus obtaining the measured output value of the rotation angle detection element 40. Then, the interval between two consecutive measured output values ​​is divided into 30 equal parts for calculating the analog output value.

[0132] For example, referring to Table 2, when the scanning component 20 rotates to 0°, the measured output value of the rotation angle detection element 40 is A, A = 2.5975 mT; when the scanning component 20 rotates to 30°, the measured output value of the rotation angle detection element 40 is B, B = 0.82531 mT. Based on the above two measured output values, the simulated output value of the scanning component 20 at 10° can be calculated as C, C = A - (AB) ÷ 30 × 10 = 2.00677. Following the above method, the simulated output values ​​of the rotation angle detection element 40 between 0° and 180°, excluding the seven angles mentioned above, can be simulated.

[0133] By combining the measured output values ​​of each angle in Table 1 and the simulated output values ​​of other angles in Table 2, it can be seen that the simulated output values ​​are very close to the measured output values. Although the correspondence between the output values ​​and the rotation angles is obtained through simulation, the reliability is high. This correspondence can be stored in the storage device of the scanning pen 01 as the basis for the scanning pen 01 to determine the rotation angle of the scanning component 20, thereby improving the efficiency of the calibration process.

[0134] Table 2

[0135]

[0136] To provide a detailed description of how the hinge assembly provides a damping structure that holds the scanning component in its stowed, supported, and unfolded states, and how the scanning component automatically springs back to the supported state after being unlocked by the locking structure, the embodiments of this application provide the following detailed description of the damping structure in the hinge assembly.

[0137] Specifically, the pivot assembly 100 may further include a damping structure 140. The damping structure 140 may be fitted onto the first pivot 110, and a holding force is provided between the host 10 and the scanning assembly 20 via the damping structure 140. Specifically, as... Figure 6 As shown, the damping structure 140 may include an end face cam 141, a first reset member 142, and an end face concave wheel 143. The main unit 10 can drive the end face cam 141 to rotate, and the scanning assembly 20 can drive the end face concave wheel 143 to rotate. The end face cam 141 and the end face concave wheel 143 can be sleeved on the first rotating shaft 110, and the end face cam 141 and the end face concave wheel 143 are arranged opposite to each other. The end face cam 141 and the end face concave wheel 143 can be pressed together by the first reset member 142 to provide a holding force for the damping structure 140.

[0138] In some implementations, such as Figure 6 and Figure 14 As shown, the rotating shaft assembly 100 may further include a retaining plate 111, a second connecting member 144, and a stop member 145. The retaining plate 111 may be connected to an end position away from the first rotating shaft 110, so that a portion of the first rotating shaft 110 is exposed. In this way, when the first rotating shaft 110 is installed, the retaining plate 111 can abut against the inner side of the scanning housing 21, and the exposed portion of the first rotating shaft 110 can extend out of the scanning housing 21 for connection with the main housing 11 (…). Figure 5 (As shown) are connected together. Of course, the first rotating shaft 110 can also be directly fixedly connected to the host 10. This application embodiment does not impose any special restrictions on the connection method between the first rotating shaft 110 and the host 10.

[0139] The cross-section of the first rotating shaft 110 (perpendicular to its axial direction) can be a non-circular shape such as an oblong, rectangular, triangular, or other polygonal shape. When the first rotating shaft 110 is connected to the host 10, the host 10 can drive the first rotating shaft 110 to rotate. The end face cam 141 can have a hole with the same shape as the cross-section of the first rotating shaft 110, and the end face cam 141 can be slidably connected to the first rotating shaft 110 along its axial direction. In this way, the end face cam 141 can be relatively fixed to the first rotating shaft 110 along its circumference, thereby allowing the host 10 to drive the end face cam 141 to rotate.

[0140] Please continue reading Figure 6 and Figure 14 The second connecting member 144 can be connected to the end face concave wheel 143, and the second connecting member 144 can be connected to the scanning housing 21 through a connecting structure such as screws or rivets, so that the scanning assembly 20 can drive the end face concave wheel 143 to rotate. The stop member 145 can be fixedly connected to one end of the first rotating shaft 110, and the first reset member 142 can be fitted onto the first rotating shaft 110 and located between the end face cam 141 and the stop member 145. In this way, the end face cam 141 can slide on the first rotating shaft 110 under the elastic action of the first reset member 142. The first reset member 142 can be selected from components such as springs, sheet springs, and disc springs. This application embodiment does not impose special restrictions on the specific structure of the first reset member 142.

[0141] Among them, such as Figure 6 and Figure 14 As shown, the end face concave wheel 143 can be provided with a circular hole, so that the first rotating shaft 110 can rotate in the hole of the end face concave wheel 143, and the end face concave wheel 143 can be provided between the end face cam 141 and the baffle 111, so that the end face cam 141 abuts against the end face concave wheel 143 through the first reset member 142.

[0142] In order to provide holding force for the scanning component 20, such as Figure 15 and Figure 16 As shown, the end face cam 141 may include a first protrusion 1411. The end face concave wheel 143 may include a plurality of second protrusions 1431, and a groove 1432 may be formed between adjacent second protrusions 1431. The groove 1432 may include a first groove 1432a and a second groove 1432b, and the groove 1432 may have a groove wall 1433 and a groove bottom 1434. The first protrusion 1411 and the groove wall 1433 respectively have slopes for a smooth transition. Thus, in the first reset member 142 ( Figure 6Under the pushing action shown, when the first protrusion 1411 abuts against the groove wall 1433 and the first protrusion 1411 does not contact the groove bottom 1434, the first protrusion 1411 has a tendency to move towards the groove bottom 1434, and this tendency to move can provide the holding force of the scanning component 20.

[0143] When using the scanning pen 01, the user can rotate the scanning component 20 to a preset angle α. At this time, the scanning component 20 can be used as a stand, allowing the host 10 to be supported on a table for easy viewing of the target content. Of course, the end face cam 141 can also be provided with multiple first protrusions 1411, and the end face concave wheel 143 can be provided with more grooves 1432 to form adjustable positions for different stand states. This allows the user to adjust the stand state to multiple preset angles α, thereby enabling the scanning pen 01 to display at different angles. This embodiment does not impose any special limitations on the number of rotation positions of the scanning component 20.

[0144] Specifically, such as Figure 17 As shown, the end face cam 141 may have a first shaft hole 1410, and the first protrusion 1411 may include a first outer protrusion 14111 and a second inner protrusion 14112. The first outer protrusion 14111 and the second inner protrusion 14112 are respectively disposed on both sides of the first shaft hole 1410, with the first outer protrusion 14111 being away from the first shaft hole 1410 and the second inner protrusion 14112 being close to the first shaft hole 1410.

[0145] Correspondingly, such as Figure 18 As shown, the end face concave wheel 143 may have a second shaft hole 1430, and the second protrusion 1431 may include a third outer protrusion 14311, a fourth outer protrusion 14312, a third inner protrusion 14313, and a fourth inner protrusion 14314. The third outer protrusion 14311 and the fourth inner protrusion 14314 are respectively disposed on both sides of the second shaft hole 1430, and the fourth outer protrusion 14312 and the third inner protrusion 14313 are respectively disposed on both sides of the second shaft hole 1430. The third outer protrusion 14311 and the fourth outer protrusion 14312 are away from the second shaft hole 1430, and the third inner protrusion 14313 and the fourth inner protrusion 14314 are close to the second shaft hole 1430.

[0146] Furthermore, both ends of the third outer protrusion 14311 and the third inner protrusion 14313 are sloped. A first central angle A exists between the bottom of the slope of the third outer protrusion 14311 and the bottom of the slope of the corresponding third inner protrusion 14313, and a second central angle B exists between the top of the slope of the third outer protrusion 14311 and the top of the slope of the corresponding third inner protrusion 14313. The first central angle A and the second central angle B are equal. Simultaneously, both ends of the fourth outer protrusion 14312 and the fourth inner protrusion 14314 are sloped. A third central angle C exists between the bottom of the slope of the fourth outer protrusion 14312 and the bottom of the slope of the corresponding fourth inner protrusion 14314, and a fourth central angle D exists between the top of the slope of the fourth outer protrusion 14312 and the top of the slope of the corresponding fourth inner protrusion 14314. The third central angle C and the fourth central angle D are equal. In this context, "corresponding" refers to the slope at the same end of the third outer protrusion 14311 and the third inner protrusion 14313, and the slope at the same end of the fourth outer protrusion 14312 and the fourth inner protrusion 14314.

[0147] The following embodiments will be combined with Figures 19-24 As shown, the damping structure 140 of the scanning component 20 in various states is described in detail. Figure 19 As shown, when the scanning component 20 is in the retracted state, the slope of one end of the first outer protrusion 14111 can abut against the slope of the fourth outer protrusion 14312. Simultaneously, the slope of one end of the second inner protrusion 14112 also abuts against the slope of the third inner protrusion 14313. The scanning pen 01 may also include a locking structure (which will be described in detail in subsequent embodiments) to lock the scanning component 20 onto the host 10, thus maintaining the folded state of the scanning component 20. However, the first protrusion 1411 has a tendency to move towards the bottom 1434 of the first groove 1432a, applying a retaining force to the scanning component 20 away from the host 10, causing the scanning component 20 to tend to pop out away from the host 10.

[0148] When the locking device is unlocked, such as Figure 20 As shown, the first outer protrusion 14111 and the second inner protrusion 14112 move and abut against the bottom 1434 of the first groove 1432a under the elastic pushing force of the first reset member 142. At this time, the scanning component 20 maintains a preset angle α (e.g., 18°) with the host 10, so that the scanning component 20 is suspended at the preset angle α position, thereby allowing the scanning component 20 to be used as a support for the host 10, so that the user can watch the video.

[0149] When a user needs to scan, such as Figure 21As shown, the scanning assembly 20 can continue to rotate. At this time, the slope surfaces of the first outer protrusion 14111 and the third outer protrusion 14311 abut against each other. The slope surface at the other end of the first outer protrusion 14111 needs to overcome the slope resistance at one end of the third outer protrusion 14311 to climb the slope. At this time, the scanning assembly 20 and the host 10 form an angle of 18°-55°. As the rotation continues, the top of the slope of the first outer protrusion 14111 reaches the top of the slope of the third outer protrusion 14311, and the first outer protrusion 14111 and the third outer protrusion 14311 rub against each other. At this time, the scanning assembly 20 and the host 10 form an angle of 55°-150°.

[0150] As the rotation continues, as Figure 22 As shown, the first outer protrusion 14111 enters the second groove 1432b, and the scanning component 20 and the host 10 are unfolded to a 180° angle, making it impossible to continue rotating the scanning component 20. However, at this time, the slope of the first outer protrusion 14111 abuts against the slope of the third outer protrusion 14311, and the first outer protrusion 14111 does not contact the bottom 1434 of the second groove 1432b, giving the first outer protrusion 14111 a tendency to move towards the bottom 1434 of the second groove 1432b, thus providing a holding force for the scanning component 20 to remain suspended in the unfolded state. At the same time, the slope at the other end of the second inner protrusion 14112 also needs to overcome the slope resistance at one end of the fourth inner protrusion 14314 to climb the slope. Until the slope of the second inner protrusion 14112 reaches the slope of the other end of the fourth inner protrusion 14314, and the second inner protrusion 14112 does not contact the bottom 1434 of the second groove 1432b, the second inner protrusion 14112 also tends to move toward the bottom 1434 of the second groove 1432b, thereby providing a holding force for the scanning assembly 20 when it is suspended in the unfolded state.

[0151] In this embodiment, the first outer protrusion 14111 and the second inner protrusion 14112 form a set of inner and outer double-layered cam assemblies, the third outer protrusion 14311 and the fourth inner protrusion 14314 form a set of inner and outer double-layered cam assemblies, and the fourth outer protrusion 14312 and the third inner protrusion 14313 form a set of inner and outer double-layered cam assemblies. This double-layered cam structure allows the inner protrusions to be non-symmetrical with respect to the center of the cam to the outer protrusions. Therefore, depending on the different hovering angles and holding force designs of the scanning assembly 20, the inner and outer protrusions can be flexibly arranged along the circumference of the cam (i.e., the different angle designs of the first central angle A, the second central angle B, the third central angle C, and the fourth central angle D in the above embodiment), thereby allowing the holding force of the scanning assembly 20 to vary at different hovering angles.

[0152] For example, the preset angle α of the scanning component 20 in the support state can be designed to be 18°, that is, when the first external protrusion 14111 contacts the bottom 1434 of the first groove 1432a, the scanning component 20 and the host 10 are at an 18° angle. At this time, the first central angle A, the second central angle B, the third central angle C, and the fourth central angle D can be set to 15°. When the scanning component 20 is in the unfolded state, the scanning component 20 can have a holding force of 3° relative to the host 10. Of course, the first central angle A, the second central angle B, the third central angle C, and the fourth central angle D can also be set to 10°, 20°, or other degrees, so that the scanning component 20 can have different degrees of holding force relative to the host 10 when in the unfolded state. This application embodiment does not impose special restrictions on the specific holding force design between the scanning component 20 and the host 10.

[0153] Furthermore, by configuring the first protrusion 1411 and the second protrusion 1431 as inner and outer double-layer cams, the friction area between the end face cam 141 and the end face concave wheel 143 can be increased. Since the frictional force of the end face cam 141 and the end face concave wheel 143 rotating under the pushing action of the first reset member 142 is fixed, increasing the friction area helps to reduce the wear between the end face cam 141 and the end face concave wheel 143, thereby improving the service life of the shaft assembly 100.

[0154] In the above embodiments, the first protrusion 1411 and the second protrusion 1431 can have different slopes. Different slopes can adjust the torque required for rotation between the end face cam 141 and the end face concave wheel 143. The greater the slope, the greater the torque required between the end face cam 141 and the end face concave wheel 143. Conversely, the smaller the slope, the smaller the torque required between the end face cam 141 and the end face concave wheel 143.

[0155] In many other implementations, such as Figure 17 As shown, the first protrusion 1411 may further include a second outer protrusion 14113 and a first inner protrusion 14114. The second outer protrusion 14113 and the first inner protrusion 14114 are respectively disposed on both sides of the first shaft hole 1410, with the second outer protrusion 14113 being away from the first shaft hole 1410 and the first inner protrusion 14114 being close to the first shaft hole 1410.

[0156] Furthermore, the top of the first outer protrusion 14111 is flush with the top of the first inner protrusion 14114. During the relative rotation of the end face cam 141 and the end face concave wheel 143, the end face concave wheel 143 only contacts the top of the first inner protrusion 14114. Similarly, the top of the second outer protrusion 14113 is flush with the top of the second inner protrusion 14112. During the relative rotation of the end face cam 141 and the end face concave wheel 143, the end face concave wheel 143 only contacts the top of the second outer protrusion 14113.

[0157] During the relative rotation of the end face cam 141 and the end face concave wheel 143, the ends of the second outer protrusion 14113 and the first inner protrusion 14114 do not contact the ends of the second protrusion 1431. The provision of the second outer protrusion 14113 and the first inner protrusion 14114 can increase the friction area between the end face cam 141 and the end face concave wheel 143, thereby reducing the wear between the end face cam 141 and the end face concave wheel 143. In addition, the second outer protrusion 14113 can support the second inner protrusion 14112, and the first inner protrusion 14114 can also support the first outer protrusion 14111, thereby improving the service life of the end face cam 141.

[0158] The above embodiments describe the structure of the rotating shaft assembly 100, which has a tendency to rotate away from the host 10 when the scanning assembly 20 is in a folded state. In other embodiments, the scanning assembly 20 may also have a rotational tendency toward the host 10 when in a folded state to prevent the scanning assembly 20 from easily detaching from the host 10. Figure 23 and Figure 24 As shown, the end face cam 141 may include a third protrusion 1412. The end face concave wheel 143 may include a plurality of fourth protrusions 1435, and a third groove 1432c and a fourth groove 1432d may be formed between adjacent fourth protrusions 1431. Figure 19 As shown, the third protrusion 1412 can also have the first outer protrusion 14111 in the above embodiment, and the fourth protrusion 1435 can also have the third outer protrusion 14311 and the fourth outer protrusion 14312 in the above embodiment. The remaining structures of the third protrusion 1412 and the fourth protrusion 1435 can also be the same as the structure of the rotating shaft assembly 100 in the above embodiment, and will not be described again here.

[0159] When the scanning component 20 is in the folded state, the slope of the first outer protrusion 14111 does not abut against the slope of the fourth outer protrusion 14312. Instead, the slope of the first outer protrusion 14111 abuts against the slope of the third outer protrusion 14311, and the third protrusion 1412 does not contact the bottom 1434 of the third groove 1432c. At this time, the scanning component 20 tends to rotate toward the host 10, that is, the scanning component 20 has a retaining force with the host 10 to prevent the scanning component 20 from easily detaching from the host 10 when in the folded state.

[0160] When a user needs to scan, the scanning component 20 can be rotated away from the host 10. During this process, the user applies a rotational force to the scanning component 20, causing the third protrusion 1412 to enter the fourth groove 1432d. Figure 24 As shown, similarly, the third protrusion 1412 first engages with the groove wall 1433 of the fourth groove 1432d, and the third protrusion 1412 does not contact the bottom 1434 of the fourth groove 1432d, so that the scanning assembly 20 still has a tendency to rotate away from the host 10. However, at this time, the scanning assembly 20 is in a 180° unfolded state with the host 10, so the cooperation between the third protrusion 1412 and the groove wall 1433 of the fourth groove 1432d can also provide the holding force of the scanning assembly 20 in the unfolded state to prevent the host 10 from shaking during the scanning process.

[0161] Of course, the aforementioned first protrusion 1411 or third protrusion 1412 can also be provided on the end face concave wheel 143, and the groove 1432 can also be provided on the end face cam 141. Furthermore, depending on the required hovering position of the scanning component 20, multiple grooves 1432 can be provided on the end face concave wheel 143. When the first protrusion 1411 or third protrusion 1412 on the end face cam 141 is embedded in grooves 1432 at different positions, the scanning component 20 can also hover at different positions on the host 10 for user convenience. This application embodiment does not impose any special restrictions on the specific positions and quantities of the first protrusion 1411, third protrusion 1412, and grooves 1432.

[0162] The above embodiment provides a detailed description of the damping structure of the rotating shaft assembly 100. The host 10 and the scanning assembly 20 can not only rotate relative to each other through the rotating shaft assembly 100, but also the rotating shaft assembly 100 can be used to keep the host 10 and the scanning assembly 20 in a fixed folded or unfolded position.

[0163] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A scanning pen, characterized in that, include: Host; Scanning components; A rotating shaft assembly is provided, in which the main unit and the scanning component are rotatably connected, allowing the scanning component to rotate between a retracted state and an unfolded state. In the retracted state, the scanning component is retracted into the host unit; in the extended state, the scanning component can extend out of the host unit. A rotation angle detection element is disposed in at least one of the host, the scanning assembly, or the rotating shaft assembly, and the output value of the rotation angle detection element is used to indicate whether the scanning assembly is in the retracted state or the unfolded state. A controller is provided on the host or the scanning component. The controller receives the output value of the rotation angle detection element and determines the rotation angle between the scanning component and the host based on the output value. The controller is used to control the scanning pen to enter the working mode corresponding to the rotation angle based on the rotation angle. When the rotation angle is within the first angle range, the scanning component is in a retracted state, and the controller controls the scanning pen to enter the first working mode; When the rotation angle is within the second angle range, the scanning component is in the support state, and the controller controls the scanning pen to enter the second working mode. The support state is between the unfolded state and the retracted state. When the rotation angle is within the third angle range, the scanning component is in the unfolded state, and the controller controls the scanning pen to enter the third working mode.

2. The scanning pen according to claim 1, characterized in that, The host computer is equipped with a display screen, and the width of the display screen is greater than the width of the scanning component.

3. The scanning pen according to claim 1, characterized in that, The pivot assembly is also configured to provide a holding force to the scanning assembly to maintain it in the retracted state, the deployed state, or the support state.

4. The scanning pen according to claim 3, characterized in that, The scanning pen also includes a locking structure, through which the scanning component is locked to the host; When the locking structure is unlocked, the scanning component is ejected into the bracket state under the holding force that rotates away from the host, and the rotating shaft assembly keeps the scanning component in the bracket state.

5. The scanning pen according to claim 3, characterized in that, The controller is used to determine the rotation angle between the scanning component and the host based on the pre-stored correspondence between the output value and the rotation angle.

6. The scanning pen according to claim 5, characterized in that, The pre-stored correspondence between the output value and the rotation angle is calibrated by a calibration device.

7. The scanning pen according to claim 1, characterized in that, The rotation angle detection element is disposed in one of the host and the scanning assembly, and the scanning pen further includes a magnetic element disposed in the other of the host and the scanning assembly; When the scanning component is in the unfolded state and the retracted state, the distance between the rotation angle detection element and the magnetic component is different along the thickness direction of the scanning pen.

8. The scanning pen according to claim 7, characterized in that, When the scanning assembly is in the unfolded state, there is a first distance between the rotation angle detection element and the magnetic component along the thickness direction of the scanning pen; when the scanning assembly is in the retracted state, there is a second distance between the rotation angle detection element and the magnetic component along the thickness direction of the scanning pen, wherein the first distance is smaller than the second distance.

9. The scanning pen according to claim 8, characterized in that, The first distance L1 satisfies 1.1mm ≤ L1 ≤ 1.7mm; and / or The second distance L2 satisfies 5.7mm≤L2≤6.4mm.

10. The scanning pen according to claim 9, characterized in that, The thickness of the rotation angle detection element is less than or equal to 0.6 mm; and / or The thickness of the magnetic component is less than or equal to 0.6 mm.

11. The scanning pen according to claim 10, characterized in that, The rotation angle detection element is disposed on the host, and the magnetic component is disposed on the scanning assembly; When the scanning assembly is in the unfolded state, the S pole of the magnetic element faces the rotation angle detection element; when the scanning assembly is in the retracted state, the N pole of the magnetic element faces the rotation angle detection element.

12. The scanning pen according to claim 11, characterized in that, The host includes a storage slot for accommodating the scanning component. The scanning component includes a scanning housing. When the scanning component is in the unfolded state, at least a portion of the scanning housing faces the bottom of the storage slot and is stacked with the bottom layer of the storage slot. The magnetic element is disposed on the inner surface of at least a portion of the scanning housing that is stacked with the bottom layer of the storage slot.

13. The scanning pen according to claim 12, characterized in that, The scanning housing includes a third housing and a fourth housing. When the scanning component is in the stored state, the third housing is farther away from the bottom of the storage groove than the fourth housing. When the scanning component is in the unfolded state, the third housing is closer to the bottom of the storage groove than the fourth housing, and at least a portion of the third housing is stacked on the bottom layer of the storage groove. The magnetic element is disposed on the inner surface of at least a portion of the third housing that is stacked on the bottom layer of the storage groove.

14. The scanning pen according to claim 13, characterized in that, The third housing includes a shaft cavity for accommodating the shaft assembly, and the magnetic element is disposed within the shaft cavity; The rotating shaft assembly includes a first rotating shaft and a second rotating shaft. The host and the scanning component are rotatably connected through the first rotating shaft and the second rotating shaft. The first rotating shaft and the second rotating shaft are coaxial and spaced apart. The magnetic component is located between the first rotating shaft and the second rotating shaft.

15. The scanning pen according to claim 12, characterized in that, The host includes a host cavity formed by the host housing, the host housing having the storage slot, and the rotation angle detection element being disposed at the bottom of the storage slot, located within the host cavity.

16. The scanning pen according to claim 4, characterized in that, The pivot assembly includes a first pivot and a damping structure. The host and the scanning assembly are rotatably connected via the first pivot. The damping structure is sleeved on the first pivot and is configured to provide a holding force to the scanning assembly to maintain it in the retracted state, the unfolded state, and / or the support state.

17. The scanning pen according to claim 16, characterized in that, The damping structure includes an end face cam, a first reset member, and an end face concave wheel. The host machine drives one of the end face cam and the end face concave wheel to rotate, and the scanning component drives the other of the end face cam and the end face concave wheel to rotate. The end face cam and the end face concave wheel are sleeved on the first rotating shaft, and the end face cam and the end face concave wheel are arranged opposite to each other; the end face cam and the end face concave wheel are pressed together by the first reset member to provide the holding force of the damping structure.

18. The scanning pen according to claim 17, characterized in that, The end face cam includes a first protrusion; the end face concave wheel includes a plurality of second protrusions, and a groove with a groove bottom and an inclined groove wall is formed between adjacent second protrusions, the groove including a first groove; In the retracted state, the first protrusion abuts against the inclined groove wall of the first groove, and the first protrusion tends to move toward the bottom of the first groove to apply a holding force away from the host to the scanning component, and the scanning component is locked to the host by the locking structure.

19. The scanning pen according to claim 18, characterized in that, When the locking structure is unlocked, the first protrusion abuts against the bottom of the first groove, and the scanning component remains in the bracket state.

20. The scanning pen according to claim 17, characterized in that, The end face cam includes a first protrusion; the end face concave wheel includes a plurality of second protrusions, and a groove with a groove bottom and an inclined groove wall is formed between adjacent second protrusions, the groove including a second groove; In the unfolded state, the first protrusion abuts against the inclined groove wall of the second groove, and the first protrusion tends to move toward the bottom of the second groove to apply a holding force to the scanning assembly away from the rotation of the host.

21. The scanning pen according to claim 17, characterized in that, The end face cam includes a third protrusion; the end face concave wheel includes a plurality of fourth protrusions, and a groove with a groove bottom and an inclined groove wall is formed between adjacent fourth protrusions, the groove including a third groove; In the retracted state, the third protrusion abuts against the inclined groove wall of the third groove, and the third protrusion tends to move toward the bottom of the third groove to apply a holding force toward the host to the scanning assembly.

Images