Transmission system and transmission method

Abstract

In an embodiment of the present disclosure, a transmission system and a transmission method are provided, including: a first gear, which is arranged on a first shaft; and a second gear, which is arranged on a second shaft, wherein the second shaft can pivot between a first position and a second position, wherein when the second shaft is in the first position, the first gear and the second gear can cooperate, and when the second shaft is in the second position, the first gear and the second gear are disengaged, wherein one of the first gear and the second gear can move axially along the corresponding shaft, and the gear of the first gear and the second gear that can move axially along the corresponding shaft is applied with a return force that can move the gear toward a predetermined position. Through the processing scheme of the present disclosure, each gear can be in an ideal meshing state.

Description

Technical Field

[0001] The present disclosure relates to the field of scanning technology, and in particular to a transmission system and a transmission method. Background Art

[0002] Currently, scanning devices are categorized as non-booklet scanners and booklet scanners, based on the clamping state of the scanned object. Non-booklet scanners are more common on the market. However, booklet scanning offers a higher degree of automation, eliminating the need for users to manually handle the scanned object page by page. Furthermore, non-booklet documents can be converted into booklet documents simply by clamping them.

[0003] The clamping device during the scanning process can quickly clamp the scanned object, overcoming the defect of taking a long time due to the need for manual placement and other operations, which is of great significance for improving scanning efficiency.

[0004] However, the clamping mechanism performs two actions during the scanning process: first, it holds the object being scanned, and second, it slowly rotates around a rotational center during the scanning process to reduce the rebound force of the turned pages and minimize the obstruction of the turned pages from scanning and photographing the unturned pages. Therefore, the gear transmission system in the clamping mechanism is crucial for improving scanning efficiency and ensuring scanning quality. Summary of the Invention

[0005] In view of this, embodiments of the present disclosure provide a transmission system and a transmission method, which at least partially solve the problems existing in the prior art.

[0006] In a first aspect, an embodiment of the present disclosure provides a transmission system, comprising:

[0007] a first gear disposed on the first shaft; and

[0008] a second gear, the second gear being disposed on the second shaft,

[0009] wherein the second shaft is capable of pivoting between a first position and a second position, wherein when the second shaft is in the first position, the first gear and the second gear are capable of engaging, and when the second shaft is in the second position, the first gear and the second gear are disengaged, and

[0010] One of the first gear and the second gear is capable of moving axially along the corresponding shaft, and a return force is applied to the gear that is capable of moving axially along the corresponding shaft, which can move toward a predetermined position.

[0011] According to a specific implementation of the embodiment of the present disclosure, the transmission system further includes:

[0012] The third gear is fixedly disposed on the third shaft and cooperates with the first gear.

[0013] According to a specific implementation of the embodiment of the present disclosure, when the second shaft is able to pivot between the first position and the second position, the third gear is always engaged with the second gear.

[0014] According to a specific implementation of the embodiment of the present disclosure, the distance between the first axis and the second axis is greater than the sum of the pitch circle radius of the first gear and the pitch circle radius of the second gear.

[0015] According to a specific implementation of the embodiment of the present disclosure, the gear among the first gear and the second gear that can move axially along the corresponding shaft is called a sliding gear, and the sliding gear is set on the corresponding shaft through a sliding spline structure.

[0016] According to a specific implementation of an embodiment of the present disclosure, the gear among the first gear and the second gear that can move axially along the corresponding axis is called a sliding gear, and the sliding gear returns to the predetermined position through one or more of gravity, elastic force and magnetic force.

[0017] According to a specific implementation of an embodiment of the present disclosure, the gear among the first gear and the second gear that can move axially along the corresponding axis is called a sliding gear, and a spring is provided on the axis corresponding to the sliding gear to enable the sliding gear to return to the predetermined position.

[0018] The transmission system and transmission method in the embodiments of the present disclosure. Through the scheme of the present disclosure, when the second gear returns to the first position, if the first gear and the second gear are misaligned and cannot re-engage, the first gear is pushed up axially by the second gear, or the second gear is pushed down axially by the first gear, and the first gear is rotated by a small angle, so that the first gear and the second gear can re-enter the ideal meshing position, and the first gear or the second gear is reset at the same time, thereby avoiding the problem of interference caused by the misalignment of the teeth of the first gear or the second gear and the inability to mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1is a schematic block diagram of a scanning device according to an embodiment of the present disclosure;

[0021] Figure 2 is a schematic structural diagram of a scanning device according to an embodiment of the present disclosure;

[0022] Figure 3 is a schematic structural diagram of a clamping device according to the present disclosure;

[0023] Figure 4 is a schematic structural diagram of a lock assembly according to the present disclosure;

[0024] Figure 5 is another structural schematic diagram of the lock assembly according to the present disclosure;

[0025] Figure 6 is a structural schematic diagram of the arrangement of the keyhole according to the present disclosure;

[0026] Figure 7 is a schematic diagram of a gear transmission system according to the present disclosure;

[0027] Figure 8 is a schematic diagram of a state where the second shaft is in a first position according to the present disclosure;

[0028] Figure 9 is a schematic diagram of the second shaft at a second position according to the present disclosure;

[0029] Figure 10 This is a schematic diagram of the state when the second axis returns to the first position according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0031] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0032] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this disclosure, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0033] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The illustrations only show components related to the present disclosure and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0034] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples. However, one skilled in the art will appreciate that the aspects described can be practiced without these specific details.

[0035] Overall configuration

[0036] First, refer to Figure 1 , describes the overall configuration of the scanning device 100 according to the present disclosure. Figure 1 As shown, the scanning device 100 according to the present disclosure includes a supporting device 110, a holding device 120, a paging device 130, a page turning device 140, an imaging device 150, and an anti-rebound device 160. In addition, the scanning device 100 according to the present disclosure also includes a controller 200, and the controller 200 includes a central processing unit (CPU) 201 as a control unit.

[0037] The controller 200 also includes a read-only memory (ROM) 202, a random access memory (RAM) 203, and a hard disk drive (HDD) 204. Furthermore, the controller 200 includes an interface 205. The ROM 202, the RAM 203, the HDD 204, and the interface 205 are connected to the CPU 201 via a bus. A basic program for causing the CPU 201 to operate is stored in the ROM 202. The RAM 203 is a storage device in which various data such as the calculation processing results of the CPU 201 are temporarily stored. The HDD 204 is a storage device in which the calculation processing results of the CPU 201, image data acquired by the imaging device 150, and the like are stored, and is also used to record therein programs for causing the CPU 201 to execute various controls.

[0038] The CPU 201 controls the operations of the supporting device 110 , the gripping device 120 , the sorting device 130 , the page turning device 140 , the imaging device 150 , and the anti-rebound device 160 according to a program recorded in the HDD 204 .

[0039] Next, refer to Figure 2 , the various components of the scanning device 100 according to the present disclosure are described in conjunction with the scanning process. Figure 2 In, with Figure 1 Like reference numerals denote like parts, and when a part is composed of multiple parts, the same reference numerals are used. Figure 1 The reference numerals in the figure are suffixed with numbers 1, 2, 3, etc. to indicate the various parts that constitute the component. For example, reference numerals 1301, 1302, ..., 1305 indicate the various parts of the paging device 130. When a single part, such as 1303, is composed of multiple components, each component is indicated by the last three digits of the reference numeral of the part plus a suffix number, such as 3031 and 3032. The above-mentioned naming convention for reference numerals also applies to the subsequent figures.

[0040] It should be noted that in the following description, the term "scanned object" refers to a medium on which information can be recorded. The information recorded on the scanned object is converted into digital information through the scanning operation of a scanning device. Examples of scanned objects include plain paper, coated paper, plastic sheets, and the like. Furthermore, while the following description uses book pages as an example of a scanned object, the scanned object may also be, for example, a newspaper, a photograph, and the like.

[0041] In addition, in the following description, the length direction of the support device 110 of the scanning device 100 is defined as the X direction, the direction perpendicular to the plane where the support device 110 is located is defined as the Z direction (not shown), and the direction perpendicular to the XZ plane is defined as the Y direction.

[0042] like Figure 2As shown, the scanning device 100 according to the present disclosure includes a support device 110, which is placed on a platform such as a table in a fixed and / or movable manner. A book 2011, which is a scanning object, is supported on the support device 110. To facilitate subsequent scanning operations, one side (e.g., the spine) of the book 2011 can be fixed to the support device 110 by a holding device 120. The holding device 120 is, for example, a clamping device, which fixes the book 2011 to the surface of the support device 110 by, for example, clamping the spine of the book 2011. Alternatively, if the book 2011 is a non-book document, the holding device 120 can fix the scanning object by aligning the document and clamping one side of the non-book document.

[0043] like Figure 2 As shown, the page turning device 140 according to the present disclosure includes a driving structure movement device 1401, a position adjustment device 1402 and a page bending adsorption structure support device 1403.

[0044] Furthermore, the paging device 130 according to the present disclosure includes a page bending suction structure 1301, a non-bending page suction structure 1302, an air blowing and page pressing device 1303, a suction force generating device 1304, and a duct 1305. The air blowing and page pressing device 1303 includes a wind force generating device 3031 and an air outlet 3032. The non-bending page suction structure 1302 is designed for harder paper. For ease of description, the page bending suction structure 1301 and the non-bending page suction structure 1302 are collectively referred to as suction structures below.

[0045] As shown in the figure, the page bending adsorption structure 1301 and the non-bending page adsorption structure 1302 are set as an integral body and are connected to the driving structure movement device 1401 through the page bending adsorption structure support device 1403. Specifically, the adsorption structures 1301 and 1302 are fixed to the page bending adsorption structure support device 1403, and the page bending adsorption structure support device 1403 can move along the slide rail provided on the driving structure movement device 1401. The slide rail is set at a predetermined angle relative to the XY plane. When the page bending adsorption structure support device 1403 moves along the slide rail, the adsorption structures 1301 and 1302 are driven to move along the direction of the slide rail. In addition, the position of the entire driving structure movement device 1401 in the Z direction can be adjusted by the position adjustment device 1402, thereby adjusting the initial position of the adsorption structures 1301 and 1302 in the Z direction.

[0046] In addition, the suction force generated by the suction force generating device 1304 of the paging device 130, such as negative pressure suction force, is transmitted to the suction structures 1301 and 1302 via the pipe 1305. The suction structures 1301 and 1302 are provided with suction cups. When the suction cups come into contact with the paper, suction force is generated on the paper.

[0047] Specifically, once the book 2011 is moved to the scanning starting position along with the support device 110, the adsorption structures 1301 and 1302 bend along the slide rail on the driving structure movement device 1401 as the page bends, and when it moves to the position where it contacts the top layer of paper in the book 2011, the adsorption force generating device 1304 generates a negative pressure adsorption force, which is transmitted to the suction cups provided on the adsorption structures 1301 and 1302 via the pipe 1305, and the top layer of paper is adsorbed by the suction cups.

[0048] Once attracted, the page bending adsorption structure support device 1403 moves upward along the slide rail on the driving structure movement device 1401, thereby separating the top sheet of paper from the subsequent sheet of paper by an angle. When the separation angle reaches a predetermined value, the back of the top sheet of paper and the front of the subsequent sheet of paper are simultaneously imaged by the provided cameras 1501 and 1502, and the captured images are converted into digital information through subsequent processing. During this process, in order to better separate the top sheet of paper from the subsequent sheet of paper, the wind force generating device 3031 of the blowing and pressing device 1303 can generate wind force, and the air blowing through the blowing port of the blowing and pressing device 1303 presses the subsequent sheet of paper to achieve better separation.

[0049] Simultaneously with or after the imaging operation, anti-rebound devices 1601 and 1602, located on either side of book 2011, press down on the turned paper, preventing it from rebounding, thus facilitating the next page turning. Specifically, anti-rebound devices 1601 and 1602 each include a rotating device 6012 / 6022 and a rotating device position adjustment device 6011 / 6021. Rotating devices 6012 / 6022 are arranged in a "Z" shape, with one end fixed to rotating device position adjustment device 6011 / 6021 at an adjustable height. Rotating devices 6012 / 6022 rotate, allowing their other end to press down on the turned paper, preventing it from rebounding. This completes the page turning and imaging operations for a single sheet of paper.

[0050] By repeating the above operation process, the book 2011 can be continuously turned over and imaged.

[0051] In the above description, although the present disclosure is described in terms of a specific form of the supporting device 110, the holding device 120, the paging device 130, the page turning device 140, the imaging device 150 and the anti-rebound device 160, the present disclosure is not limited thereto, but may adopt various other forms as long as the adopted form can realize the functions of the various components.

[0052] For example, while the adsorption force generating device 1304 is described using a vacuum adsorption device as an example, the adsorption force generating device 1304 is not limited to this and may include, for example, one or more of an electrostatic adsorption device, a magnetic adsorption device, or a biomimetic adsorption device. Furthermore, the force generated is not limited to an adsorption force and may also be a thrust applied to the paper. That is, in this disclosure, the adsorption force generating device 1304 is merely an example of a separation force generating device configured to generate a separation force that separates adjacent scanned objects.

[0053] In addition, the equipment for assisting paging is not limited to the air blowing and paging device 1303, but mechanical paging equipment, negative pressure page suction equipment, etc. can also be used, as long as these devices can play the role of assisting paging.

[0054] The various forms and settings of the supporting device 110, holding device 120, paging device 130, page turning device 140, imaging device 150 and anti-rebound device 160 disclosed in the present invention are specifically described in patent CN201721385718.2, the entire content of which is incorporated herein by reference.

[0055] In addition, although in the above description, the paging device is described as including the non-bending page adsorption structure 1302 and the air blowing and pressing device 1303, these components can be omitted without affecting the overall function of the scanning device 100.

[0056] Hereinafter, the present disclosure will be described centering on the holding device 120. In the following description, the holding device 120 according to the present disclosure is configured as a clamping device.

[0057] The following describes a clamping device according to an exemplary embodiment with reference to the accompanying drawings. The clamping device according to this exemplary embodiment is an example of the holding device 120 described above, and is configured to clamp a scanning object. In the following description, the plane on which the supporting device 110 or the clamped book 2011 lies is referred to as the horizontal plane, and the direction perpendicular to the horizontal plane is referred to as the vertical direction.

[0058] First, refer to Figure 3 , which shows a cross-sectional view of a clamping device according to a first embodiment of the present disclosure, Figure 3 Only a part of the clamping device is shown, and the clamping device according to this embodiment includes Figure 3 The other half of the part shown is symmetrical. Figure 3As shown, the clamping device according to the present disclosure includes a lower clamping device 1203. The lower clamping device 1203 is used to provide a clamping force on the back of the book 2011 when clamping the book 2011, thereby cooperating with the upper clamping device 1201 described later to clamp the book 2011. The lower clamping device 1203 can be configured as a plate and flush with the plane of the support device 110. Alternatively, the lower clamping device 1203 can be configured as a tooth to achieve better clamping.

[0059] The clamping device according to this exemplary embodiment further includes an upper clamping device 1201, which is composed of a vertical portion (first portion) and a horizontal portion (second portion), wherein the horizontal portion is parallel to the lower clamping device 1203 so as to position the book 2011 between the horizontal portion of the upper clamping device 1201 and the lower clamping device 1203. In this exemplary embodiment, a hole is provided in the lower clamping device 1203 as described above, and a clamping mechanism guide 1202 is provided on the horizontal portion of the upper clamping device 1201. The clamping mechanism guide 1202 is provided in the vertical direction and cooperates with the hole provided in the lower clamping device 1203 to enable the upper clamping device 1201 to move in the vertical direction. Alternatively, a hole may be provided on the horizontal portion of the upper clamping device 1201, and a clamping mechanism guide 1202 may be provided in the vertical direction on the lower clamping device 1203 to enable the lower clamping device 1203 to move closer to and farther from the horizontal portion of the upper clamping device 1201. In other words, the horizontal portion of the upper clamping device 1201 may be movable in the vertical direction.

[0060] Furthermore, the vertical portion of the upper clamping device 1201 is provided as a keyhole plate 1212, and a keyhole can be provided on the keyhole plate 1212. Alternatively, the keyhole plate 1212 can be provided separately and fixedly connected to the vertical portion of the upper clamping device 1201. In other words, the vertical portion of the upper clamping device 1201 is provided with a keyhole that cooperates with the lock core.

[0061] In the clamping device according to this exemplary embodiment, a bracket 1209 is provided on a side of the lower clamping device 1203 opposite to a side of the horizontal portion of the upper clamping device 1201. The bracket 1209 can be provided in the form of a frame, for example, to form a "U"-shaped frame with the lower clamping device 1203, and can be fixedly connected to the lower clamping device 1203 by welding, threading, etc. Alternatively, the lower clamping device 1203 and the bracket 1209 can be formed integrally.

[0062] like Figure 3 As shown, a motion conversion device and a pushing portion 1205 are provided between the lower clamping device 1203 and the bottom plate of the bracket 1209 .

[0063] The motion conversion device is a device that can convert rotational motion and linear motion into each other, and includes a rotational motion part and a linear motion part that cooperate with each other. Specifically, the motion conversion device is capable of converting rotational motion into linear motion. According to one embodiment, the motion conversion device can be, for example, a screw pair, the rotational motion part can be a screw nut 1210, and the linear motion part can be a screw 1207. According to another embodiment, the rotational motion part can be a nut, and the linear motion part can be a screw. Preferably, the motion conversion device according to this exemplary embodiment has a self-locking function, that is, in the case where the motion conversion device is a screw pair, the screw pair is a self-locking screw pair, that is, a self-locking screw nut.

[0064] The pushing portion 1205 is a component configured to push the lock assembly 1211 described later. According to one embodiment, the pushing portion 1205 is a shaft with a tapered structure, wherein the tapered structure may be all or part of the pushing portion 1205. In other words, the pushing portion 1205 may be a tapered structure, or the pushing portion 1205 may be in the form of a tapered structure provided on the shaft, with the axis of the tapered structure coinciding with the axis of the shaft. According to another embodiment, the pushing portion 1205 may be a helical structure, and the diameter of the helical structure may continuously change. Preferably, the diameter of the helical structure may continuously increase or decrease. Specifically, the helical line may be in the form of a protrusion or groove provided on the tapered structure.

[0065] The scanning device according to this exemplary embodiment is described below using a self-locking lead screw nut as an example of a motion conversion device and a shaft with a tapered structure as an example of a pusher 1205. However, it should be understood that other forms of motion conversion devices and pushers 1205 are also within the scope of this disclosure.

[0066] In this exemplary embodiment, the pusher 1205 is fixedly (rigidly) connected to the self-locking screw 1207 and is mounted between the lower clamping device 1203 and the bottom plate of the bracket 1209 via a bearing. The pusher 1205 and the self-locking screw 1207 can be connected by a thread. Figure 3 As shown, the two can be fixedly connected by providing a threaded hole on the pushing portion 1205 and pressing the self-locking screw 1207 with a screw provided in the threaded hole.

[0067] It should be noted that in the above description, the pushing portion 1205 is fixedly connected to the self-locking lead screw 1207, but the present invention is not limited to this. The pushing portion 1205 can be fixedly connected to the lead screw nut 1210. In other words, the pushing portion 1205 can be fixedly connected to either the rotary motion portion or the linear motion portion. The following description is based on the case where the pushing portion 1205 is fixedly connected to the self-locking lead screw 1207, but the case where the pushing portion 1205 is fixedly connected to the lead screw nut 1210 is also included in the scope of the present disclosure.

[0068] In addition, if Figure 3 As shown, the cone of the push portion 1205 is set to a form in which the upper portion is small and the lower portion is large, and the push portion 1205 is installed on the upper portion of the self-locking screw 1207. However, the present disclosure is not limited thereto, and the direction of the cone can be set in the opposite direction, and the push portion 1205 can also be installed on the lower portion of the self-locking screw 1207.

[0069] The configuration of the pushing portion 1205 and the motion conversion device has been described above. The configuration of other components of the force clamping device according to this exemplary embodiment will be described below.

[0070] In this exemplary embodiment, a base guide 1208 is mounted on the bottom surface of the bracket 1209 opposite the lower clamping device 1203. The base guide 1208 is arranged perpendicular to the bottom plate of the bracket 1209. Alternatively, the base guide 1208 can be integrally formed with the bracket 1209. In this exemplary embodiment, the base guide 1208 is configured to guide the vertical movement of the lock base 1206, which will be described later.

[0071] The clamping device according to this exemplary embodiment further includes a lock base 1206 , which is provided with a hole matching the base guide portion 1208 , so that the lock base 1206 can move in a vertical direction along the base guide portion 1208 .

[0072] As described above, the self-locking screw 1207 of the motion conversion device is fixedly connected to the pushing part 1205, and the screw nut 1210 of the motion conversion device is fixedly mounted on the lock base 1206 according to this exemplary embodiment, and the screw nut 1210 cooperates with the self-locking screw 1207.

[0073] According to one embodiment, the screw nut 1210 can be connected to the lock base 1206 by bolts, or the lock base 1206 and the screw nut 1210 can be welded together. By connecting the lock base 1206 to the self-locking screw 1207 via the screw nut 1210, the lock base 1206 can be moved in the vertical direction along the base guide portion 1208 when the self-locking screw 1207 rotates. Alternatively, when the pusher 1205 is fixedly connected to the screw nut 1210, the screw nut 1210 is used as the rotary motion part of the motion conversion device. In this way, the lock base 1206 can be moved in the vertical direction along the base guide portion 1208 by rotating the screw nut 1210.

[0074] In addition, a lock core guide 1204 is fixedly mounted on the lock base 1206. The lock core guide 1204 is an axis arranged in the horizontal direction, and its height can be adjusted by the fastening position. Alternatively, the lock core guide 1204 can be in the form of a slide rail.

[0075] The lock assembly 1211 according to this exemplary embodiment is slidably mounted on the lock cylinder guide portion 1204 along the lock cylinder guide portion 1204. According to one embodiment, the lock assembly 1211 may be mounted on the lock cylinder guide portion 1204 via a sliding bearing so that the lock assembly 1211 can slide along the lock cylinder guide portion 1204. In this exemplary embodiment, the lock cylinder guide portion 1204 is mounted in a direction parallel to the direction in which the book is set, that is, in a horizontal direction.

[0076] It should be noted that although Figure 3 Only a single base guide portion 1208 and a single clamping mechanism guide portion 1202 are shown, but it should be understood that the clamping device according to this exemplary embodiment includes Figure 3 Furthermore, the number of the base guides 1208 and the clamping mechanism guides 1202 is not limited thereto, as long as their functions can be achieved.

[0077] Next, refer to Figure 4 and Figure 5 Describe the lock assembly 1211 of the clamping device according to this exemplary embodiment, and Figure 5 1 shows a structural diagram of the lock assembly 1211 viewed from the back of the clamping device.

[0078] As shown in the figure, the lock assembly 1211 according to this exemplary embodiment includes an axial hole 2111, and the lock core guide portion 1204 is installed in the axial hole 2111 so that the lock assembly 1211 can move in the horizontal direction along the lock core guide portion 1204. In addition, the lock assembly 1211 also includes a lock core installation portion 2114, a lock core 2115 (the first part of the lock) (see Figure 5 ) is mounted on the lock core mounting portion 2114. The lock assembly 1211 further includes an axis hole base 2112, in which the axis hole 2111 is provided.

[0079] like Figure 4 As shown, the lock assembly 1211 according to this exemplary embodiment includes two symmetrically arranged shaft holes 2111, and the shaft hole base 2112 includes a shaft hole connecting portion to connect the two shaft hole bases 2112 provided with the shaft holes 2111. In this exemplary embodiment, the shaft hole connecting portion is configured to be capable of mating with the tapered portion of the pusher 1205. In other words, the shaft hole connecting portion includes a tapered surface 2113 that can mate with the tapered surface of the pusher 1205.

[0080] If the pusher 1205 is a helical wire disposed on the conical structure, the lock assembly 1211 may include a portion that mates with the helical wire. For example, if the helical wire is a groove on the conical structure, the portion on the lock assembly 1211 that mates with it may be a slider disposed in the groove. Alternatively, if the pusher 1205 is a protrusion disposed on the conical structure, the portion on the lock assembly 1211 that mates with it may be a groove that mates with the protrusion.

[0081] When the push portion 1205 is a tapered structure and the shaft-hole connection portion includes a tapered surface 2113, the lock assembly 1211 applies a force to cause the tapered surface 2113 to mate with the tapered structure. This is because, compared to a case where the push portion 1205 is a spiral, the shape of the tapered surface 2113 may cause it to separate from the push portion 1205 during the pushing process. The force can be applied, for example, by providing a spring on the lock assembly 1211 to apply a force toward the push portion 1205. The force can also be applied in any other suitable manner.

[0082] In the above description, the shaft hole base 2112, the lock core mounting portion 2114, and the shaft hole connecting portion are described as separate components. However, it should be understood that the shaft hole base 2112, the lock core mounting portion 2114, and the shaft hole connecting portion of the lock assembly 1211 according to the present disclosure can be formed integrally. In addition, although the lock core 2115 is depicted as being disposed at the upper portion of the lock assembly 1211, the present disclosure is not limited thereto, and the lock core 2115 can be disposed at any height within the lock assembly 1211. Furthermore, as shown in the figures, a weight-reducing hole can be provided on the lock assembly 1211 according to this exemplary embodiment to reduce the weight of the lock assembly 1211.

[0083] The above describes the present disclosure in a specific form of the lock assembly 1211, but the lock assembly 1211 according to this exemplary embodiment can adopt other suitable forms, as long as the lock assembly 1211 cooperates with the pushing portion 1205 so that when the pushing portion 1205 rotates, the lock assembly 1211 moves along the lock core guide portion 1204 while the lock base 1206 moves in the vertical direction.

[0084] The lock assembly 1211 thus configured can move along the lock core guide 1204 so that the lock core 2115 can be engaged with the lock hole provided on the first part of the upper clamping device 1201. In other words, the lock core guide 1204 and the first part of the upper clamping device 1201 are oriented so that the lock core 2115 can be engaged with the lock hole provided on the first part of the upper clamping device 1201.

[0085] The following focuses on the installation of the lock core 2115 on the lock assembly 1211 and how to achieve the matching between the lock core 2115 and the keyhole.

[0086] like Figure 6 As shown, the lock core 2115 according to this exemplary embodiment is cylindrical and arranged in a row on the back side of the lock assembly 1211. In this exemplary embodiment, the lock core 2115 is retractably disposed within the lock core hole. Specifically, a spring can be disposed within the lock core hole, and the lock core 2115 is disposed within the lock core hole to utilize the spring disposed therein to provide a resilient force for the lock first portion 2115.

[0087] In this exemplary embodiment, a spring is provided in the lock core hole to provide a resilient force for the lock core 2115. However, the present disclosure is not limited thereto, and the resilient force may be provided by, for example, injecting hydraulic oil into the lock core hole using a hydraulic pump. Any method of providing a resilient force for the lock core 2115 is applicable and within the scope of the present disclosure. That is, in this exemplary embodiment, the lock core 2115 is a retractable component.

[0088] The structure of the clamping device according to the present exemplary embodiment has been described above with reference to the accompanying drawings. The working principle of the clamping device, ie, how the clamping device according to the present exemplary embodiment clamps a scan object, will be described below.

[0089] Return to Figure 3When the pusher 1205 includes a tapered structure, in the initial operating state, the lock assembly 1211 is forced away from the keyhole plate 1212 by the spring. That is, the lock assembly is subjected to a force that forces the tapered surface 2113 to mate with the tapered structure. As a result, the tapered surface of the tapered structure may not contact the tapered surface 2113. In this case, the lock core 2115 does not contact the keyhole plate 1212, or the two are separated by a predetermined distance. In other words, when the lock assembly 1211 is furthest away from the keyhole plate 1212, a gap exists between the lock core 2115 and the keyhole. In this case, the keyhole plate 1212 can move up and down with the upper clamping device 1201, so that in the initial state, it can clamp books 2011 of different thicknesses.

[0090] When book 2011 needs to be clamped, the upper clamping device 1201 is lifted to place book 2011 between the upper clamping device 1201 and the lower clamping device 1203. At this point, the self-locking lead screw 1207 rotates, causing the mating lead screw nut 1210 to drive the lock base 1206 downward. In this manner, the lock assembly 1211 follows the lock base 1206 downward. Simultaneously, the tapered surface 2113 of the lock assembly 1211 moves downward, approaching the tapered surface of the pusher 1205. As the lock assembly 1211 moves further downward, the tapered surface 2113 of the lock assembly 1211 contacts the tapered surface of the pusher 1205. The tapered surface of the pusher 1205 pushes the lock assembly 1211 along the lock core guide 1204 toward the keyhole plate 1212, until the first lock portion 2115 is inserted into the keyhole of the keyhole plate 1212.

[0091] When the lock core 2115 is inserted into the lock hole of the keyhole plate 1212, the lock assembly 1211 is directly engaged with the keyhole plate 1212. As the lock assembly 1211 is engaged with the keyhole plate 1212, as the lock assembly 1211 moves further downward, the lock assembly 1211 drives the keyhole plate 1212 and the upper clamping device 1201 downward until the book 2011 is clamped.

[0092] In addition, since the self-locking screw 1207 has a self-locking function, the entire structure is self-locked after the book 2011 is clamped, thereby maintaining the clamped state of the book 2011.

[0093] When the book 2011 needs to be released, the self-locking screw 1207 is rotated in the reverse direction to disengage the lock assembly 1211 from the lock hole plate 1212, thereby releasing the clamping state and releasing the book 2011.

[0094] The following focuses on the arrangement of the lock holes on the lock hole plate 1212 and how to achieve the self-locking function for books 2011 of any thickness. Figure 6As shown, it shows a schematic diagram of the arrangement of the lock holes on the lock hole plate 1212. Figure 6 In the embodiment, the keyholes are configured as round holes arranged in a row.

[0095] Furthermore, the position of the lock core 2115 of the lock assembly 1211 is vertically aligned with the position of the lock holes on the keyhole plate 1212. That is, the lock assembly 1211 is provided with a lock core 2115 corresponding to each vertical row of lock holes. In this exemplary embodiment, the vertical alignment of the lock core 2115 with the lock holes on the keyhole plate 1212 is achieved by the position of the clamping mechanism guide 1202. That is, in this exemplary embodiment, the clamping mechanism guide 1202 is positioned so that the lock holes on the keyhole plate 1212 and the lock core 2115 are vertically aligned, i.e., on the same vertical line.

[0096] By aligning the lock hole in the vertical direction, for a book 2011 of any thickness, the corresponding lock core 2115 can be inserted into the lock hole by only rotating the self-locking screw rod 1207 a small number of times.

[0097] Specifically, for thicker book 2011, upper clamping device 1201 is lifted to a greater height and contacts the upper surface of book 2011. At this time, when self-locking screw 1207 is rotated, lock assembly 1211 moves toward keyhole plate 1212 as described above. At this time, since upper clamping device 1201 is lifted to a greater height, lock core 2115 tends to contact and engage with the keyhole located at the lower side. Conversely, when book 2011 is thinner, upper clamping device 1201 is lifted to a lesser height, and lock first portion 2115 tends to contact and engage with the keyhole located at the upper side. That is, in this exemplary embodiment, the upper clamping device 1201 is lifted to accommodate books 2011 of varying thicknesses. Furthermore, after the upper clamping device 1201 contacts the book 2011, the distance that the lock assembly 1211 needs to move toward the keyhole plate 1212 is constant, equal to the distance between the lock assembly 1211 and the keyhole plate 1212 in the initial position. Thus, by simply appropriately setting the distance between the lock assembly 1211 and the keyhole plate 1212 in the initial position, the book 2011 can be clamped with minimal operation.

[0098] It should be noted that although in the above description, the lock core 2115 is provided on the lock assembly 1211 and the lock hole is provided on the lock hole plate 1212, the present invention can be reversed such that the lock core 2115 is provided on the lock hole plate 1212 and the lock hole is provided on the lock assembly 1211.

[0099] In addition, the stepless hole lock according to this exemplary embodiment can also be provided with a rotating shaft, which can be driven by a motor. The direction of the rotating shaft is set to be along the clamping direction of the book 211, that is, Figure 2 In the Y direction shown in FIG, the book 2011 can be turned over as a whole when it is clamped, thereby avoiding or reducing the unevenness of the book caused by the increase of turned pages during the page turning process.

[0100] The clamping device according to the present exemplary embodiment has been described above with reference to the accompanying drawings. The force-free hole lock according to the present exemplary embodiment is simple to operate and is quick and efficient.

[0101] refer to Figure 7 、 Figure 8 and Figure 9 , describing a transmission system based on the above-mentioned clamping device.

[0102] To enable the propulsion unit 1205 to rotate, a second gear 1213 is coaxially fixed to the propulsion unit 1205. The propulsion unit 1205 and the second gear 1213 may be threadedly connected. A first gear 1214 is also provided, coupling the first gear 1214 with the second gear 1213 to complete the rotation of the propulsion unit 1205. The first gear 1214 can be driven by a handwheel or a motor. During the clamping operation, since the clamping device must first clamp the scanned object and rotate along the axis of rotation during the scanning process, the second gear 1213, coaxially fixed to the propulsion unit 1205, will separate from the first gear 1214 during rotation. In order to ensure that the second gear 1213 and the first gear 1214 can re-enter the meshing state when the scanning is completed or stopped and the clamping device returns to zero position, the first gear 1214 or the second gear 1213 is set to a structure that can move axially along the axis corresponding to the gear, so that when the clamping device returns to zero position, the teeth of the first gear 1214 and the second gear 1213 are misaligned and cannot re-engage, the first gear 1214 is pushed upward axially by the second gear 1213, or the second gear 1213 is pushed downward axially by the first gear 1214. When used next time, the first gear 1214 is rotated a small angle to make the first gear 1214 and the second gear 1213 re-enter the ideal meshing position, and at the same time, the first gear 1214 or the second gear 1213 is reset, thereby avoiding the problem of interference caused by the misalignment of the teeth of the second gear 1213 and the first gear 1214 and the inability to mesh.

[0103] According to a preferred embodiment, Figures 8-10, when the first gear 1214 is able to move axially and the second gear 1213 is fixed, it also includes a third gear 1215 that is meshed with the first gear 1214 for transmission, the first gear 1214 and the second gear 1213 are in transmission cooperation, and the first gear 1214 is able to move along the axial direction of the gear; wherein, when the second gear 1213 is able to pivot between the first position and the second position, the third gear 1215 is always meshed with the first gear 1214, and the distance between the first axis of the first gear 1214 and the second axis of the second gear 1213 is greater than the sum of the pitch circle radius of the first gear 1214 and the pitch circle radius of the second gear 1213.

[0104] Preferably, the third gear 1215 is driven by a hand wheel 1216. Of course, the third gear 1215 can also be driven by a motor. When the book 2011 needs to be clamped, the hand wheel 1216 is turned, and the third gear 1215, the first gear 1214 and the second gear 1213 are engaged and driven, thereby driving the pushing part 1205 to rotate, and finally clamping the book 2011. At this time, the transmission state is as follows: Figure 8 As shown in FIG, the clamping device is in its initial state before rotating with the rotating shaft. As the scanning process proceeds, the clamping device rotates with the rotating shaft, thereby driving the second gear 1213 fixed coaxially with the pushing portion 1205 to rotate synchronously. The second gear 1213 separates from the first gear 1214. The motion trajectory 12131 of the second gear 1213 is shown in FIG. Figure 9 When the scanning is completed or stopped, the clamping device returns to zero position, and the second gear 1213 returns to the position of meshing with the first gear 1214 along the arc motion trajectory 12131. When the teeth of the first gear 1214 and the second gear 1213 are misaligned and cannot be re-engaged, the first gear 1214 is pushed up axially by the second gear 1213, as shown in FIG. Figure 10 As shown, when used next time, the hand wheel 1216 is turned, and the third gear 1215 drives the first gear 1214 to rotate a small angle, so that the first gear 1214 and the second gear 1213 can re-enter the ideal meshing position, and at the same time the first gear 1214 is reset.

[0105] Among them, since the first gear 1214 is pushed upward in the axial direction by the second gear 1213, that is, the first gear 1214 is called a sliding gear, the power for returning the first gear 1214 can be the weight of the first gear 1214 itself, or the elastic force of a spring fixed to the first gear 1214. When the first gear 1214 is pushed up, the spring is compressed. When the first gear 1214 and the second gear 1213 re-enter the ideal meshing position, the first gear 1214 is reset under the restoring force of the spring. In addition, the above-mentioned power can also be magnetic force, that is, the above-mentioned sliding gear is caused to return to the predetermined position by one or more of gravity, elastic force and magnetic force, all of which fall within the scope of the present invention.

[0106] According to another preferred embodiment of the present invention, the first gear 1214 is capable of axial movement, while the second gear 1213 is fixed. In other words, the first gear 1214 is referred to as a sliding gear. The sliding gear is attached to the corresponding shaft via a sliding spline structure, preferably an internal spline gear. The first gear 1214 is configured as a sliding spline structure, enabling both axial movement and torque transmission. The force that resets the first gear 1214 can be one or more of gravity, spring force, and magnetic force.

[0107] According to another preferred embodiment of the present invention, when the first gear 1214 is capable of moving axially and the second gear 1213 is fixed, it also includes a third gear 1215 that is meshed with the first gear 1214 for transmission. The first gear 1214 is matched with the second gear 1213 for transmission. The first gear 1214 is capable of moving axially, and the first gear 1214 is set on the corresponding shaft through a sliding spline structure, preferably an internal spline gear.

[0108] According to another preferred embodiment of the present invention, when the second gear 1213 is able to move axially and the first gear 1214 is fixed, the second gear 1213 is set on the corresponding shaft through a sliding spline structure, preferably an internal spline gear, so that the second gear 1213 can both move axially and transmit torque, thereby driving the pushing part 1205 to rotate.

[0109] According to another preferred embodiment of the present invention, when the second gear 1213 is capable of moving axially and the first gear 1214 is fixed, it also includes a third gear 1215 that is meshed with the first gear 1214 for transmission. The first gear 1214 is matched with the second gear 1213 for transmission. The second gear 1213 is capable of moving axially of the gear, and the second gear 1213 is set on the corresponding shaft through a sliding spline structure, preferably an internal spline gear, thereby driving the pushing part 1205 to rotate.

[0110] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A transmission system, characterized in that: include: a first gear (1214), the first gear (1214) being disposed on the first shaft; and a second gear (1213), the second gear (1213) being disposed on a second shaft, wherein the second shaft is capable of pivoting between a first position and a second position, wherein when the second shaft is in the first position, the first gear (1214) and the second gear (1213) are capable of engaging, and when the second shaft is in the second position, the first gear (1214) and the second gear (1213) are disengaged, and wherein one of the first gear (1214) and the second gear (1213) is capable of axially moving along the corresponding shaft, and a return force is applied to the gear that is capable of axially moving along the corresponding shaft between the first gear (1214) and the second gear (1213) so as to enable the gear to move toward a predetermined position; During the process of the clamping device returning to zero position, the second gear (1213) and the first gear (1214) re-enter the meshing state, and the first gear (1214) or the second gear (1213) is set as a structure that can move axially along the axis corresponding to the gear, so that when the clamping device returns to zero position, the gear teeth of the first gear (1214) and the second gear (1213) are misaligned and cannot re-engage, the first gear (1214) is pushed up axially by the second gear (1213), or the second gear (1213) is pushed out axially downward by the first gear (1214). When used next time, the first gear (1214) is rotated by a small angle so that the first gear (1214) and the second gear (1213) re-enter the ideal meshing position, and at the same time, the first gear (1214) or the second gear (1213) is reset.

2. The transmission system according to claim 1, characterized in that The transmission system further comprises: The third gear (1215) is fixedly disposed on the third shaft, and the third gear (1215) cooperates with the first gear (1214).

3. The transmission system according to claim 2, characterized in that: When the second shaft is capable of pivoting between the first position and the second position, the third gear (1215) is always engaged with the first gear (1214).

4. The transmission system according to any one of claims 1 to 3, characterized in that: The distance between the first axis and the second axis is greater than the sum of the pitch circle radius of the first gear (1214) and the pitch circle radius of the second gear (1213).

5. The transmission system according to any one of claims 1 to 3, characterized in that: The gear among the first gear (1214) and the second gear (1213) that can move axially along the corresponding shaft is called a sliding gear, and the sliding gear is set on the corresponding shaft through a sliding spline structure.

6. The transmission system according to any one of claims 1 to 3, characterized in that: The gear among the first gear (1214) and the second gear (1213) that can move axially along the corresponding axis is called a sliding gear, and the sliding gear is returned to the predetermined position by one or more of gravity, elastic force and magnetic force.

7. The transmission system according to claim 6, characterized in that: The gear among the first gear (1214) and the second gear (1213) that can move axially along the corresponding axis is called a sliding gear, and a spring is provided on the axis corresponding to the sliding gear to enable the sliding gear to return to the predetermined position.

8. A clamping device configured to clamp a scanning object and rotate along a rotation axis set in a clamping direction of the clamped scanning object, characterized in that: The clamping device comprises a transmission system according to any one of claims 1-7.

9. A scanning device (100), characterized in that comprising the clamping device according to claim 8, The page turning device (140) is configured to separate the scanned object, and the imaging device (150) is configured to image the scanned object.

Images