CN212672369U - Transmission system, clamping device and scanning device - Google Patents

Abstract

The embodiment of the present disclosure provides a transmission system, a clamping device and a scanning device, including: a first gear disposed on a first shaft; and a second gear provided to a second shaft, wherein the second shaft is pivotable 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 engageable, 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 is axially movable along the corresponding shaft, and a gear of the first gear and the second gear that is axially movable along the corresponding shaft is applied with a return force that is capable of moving the gear toward a predetermined position. Through the processing scheme of the present disclosure, each gear can be in an ideal meshing state.

Description

Transmission system, clamping device and scanning device

Technical Field

The present disclosure relates to the field of scanning technology, and more particularly, to a transmission system.

Background

At present, the scanning device can be divided into a non-registered scanning device and a registered scanning device based on the clamping state of the scanning object. Non-registered scanning devices are relatively common in the market. However, the booklet scanning enables a higher degree of automation, which does not require the user to take the scanning object page by page, and the non-booklet material can be converted into booklet material by clipping.

The clamping device in the scanning process can realize rapid clamping of the scanning object, overcomes the defect that the scanning object occupies a long time due to operations such as manual placement and the like, and has important significance for improving the scanning efficiency.

However, the clamping device in the scanning process needs to perform two actions, one is to clamp the scanning object, and the other is to slowly rotate around a rotation center in the scanning process, so as to reduce the rebounding force of the turned pages and reduce the blocking of the turned page bulge to the scanning and photographing of the non-turned pages. Therefore, the arrangement of the gear transmission system in the clamping device has important significance for improving the scanning efficiency and ensuring the scanning quality.

SUMMERY OF THE UTILITY MODEL

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

In a first aspect, an embodiment of the present disclosure provides a transmission system, including:

a first gear disposed on a first shaft; and

a second gear provided to a second shaft,

wherein the second shaft is pivotable 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 mating, and when the second shaft is in the second position the first gear and the second gear are disengaged, and

wherein one of the first and second gears is axially movable along the corresponding shaft, and a return force capable of moving the gear toward a predetermined position is applied to the one of the first and second gears that is axially movable along the corresponding shaft.

According to a specific implementation of the embodiments of the present disclosure, the transmission system further includes:

a third gear fixedly disposed on a third shaft and mated with the first gear.

According to a specific implementation of the embodiment of the present disclosure, the third gear is always engaged with the second gear during the process when the second shaft is capable of pivoting between the first position and the second position.

According to a specific implementation manner of the embodiment of the present disclosure, a distance between the first shaft and the second shaft is greater than a sum of a reference circle radius of the first gear and a reference circle radius of the second gear.

According to a specific implementation of the embodiment of the present disclosure, the gear of the first gear and the second gear that is axially movable along the corresponding shaft is referred to as a sliding gear, and the sliding gear is provided to the corresponding shaft by a sliding spline structure.

According to a specific implementation of the embodiment of the present disclosure, a gear of the first gear and the second gear, which is axially movable along the corresponding shaft, is referred to as a sliding gear, and the sliding gear returns the sliding gear toward the predetermined position by one or more of gravity, an elastic force, and a magnetic force.

According to a specific implementation manner of the embodiment of the present disclosure, a gear of the first gear and the second gear, which is capable of moving along a corresponding shaft axial direction, is referred to as a sliding gear, and a spring is disposed on the shaft corresponding to the sliding gear so as to return the sliding gear toward the predetermined position.

The transmission system and the transmission method in the embodiment of the disclosure. Through the scheme of this disclosure, make when the second gear return to the primary importance, misplace at first gear and second gear, under the condition that can not be engaged again, first gear is by second gear along the ascending jack-up of axial, or the second gear is by first gear along the axial is ejecting downwards, rotate the small angle with first gear, can make first gear and second gear reentrant the ideal position of meshing, make first gear or second gear reset simultaneously, thereby avoid the tooth of a cogwheel of first gear or second gear stagger and can't mesh and lead to the problem of interference.

Drawings

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

FIG. 1 is a schematic block diagram of a scanning apparatus of an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a scanning device according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural view of a clamping device according to the present disclosure;

FIG. 4 is a schematic structural view of a lock assembly according to the present disclosure;

FIG. 5 is another schematic structural view of a lock assembly according to the present disclosure;

FIG. 6 is a schematic structural view of an arrangement of keyholes according to the present disclosure;

FIG. 7 is a schematic illustration of a gear system according to the present disclosure;

FIG. 8 is a schematic view of a second shaft in a first position according to the present disclosure;

FIG. 9 is a schematic view of a second shaft in a second position according to the present disclosure;

FIG. 10 is a schematic view of a second axis returning to a first position in accordance with one embodiment of the present disclosure.

Detailed Description

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

The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the disclosure, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present disclosure, and the drawings only show the components related to the present disclosure rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.

Integral arrangement

First, referring to fig. 1, an overall configuration of a scanning apparatus 100 according to the present disclosure is described. As shown in fig. 1, the scanning apparatus 100 according to the present disclosure includes a supporting device 110, a holding device 120, a paging device 130, a page flipping device 140, an image forming device 150, and an anti-bounce device 160. Further, the scanning apparatus 100 according to the present disclosure further includes a controller 200, and the controller 200 includes a Central Processing Unit (CPU) 201 as a control unit.

Further, the controller 200 includes a Read Only Memory (ROM)202, a Random Access Memory (RAM)203, and a Hard Disk Drive (HDD) 204. Further, the controller 200 includes an interface 205. The ROM 202, RAM 203, HDD 204, and 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 calculation processing results of the CPU 201 are temporarily stored. The HDD 204 is a storage device in which results of calculation processing by the CPU 201, image data acquired by the imaging apparatus 150, and the like are stored, and is also used to record therein programs for causing the CPU 201 to execute various controls.

The CPU 201 controls the operations of the supporting device 110, the holding device 120, the paging device 130, the page flipping device 140, the imaging device 150, and the anti-bounce device 160 by according to a program recorded in the HDD 204.

Next, referring to fig. 2, the various components of the scanning apparatus 100 according to the present disclosure are described in connection with a scanning process. In fig. 2, the same reference numerals as in fig. 1 denote the same components, and when a component is constituted by a plurality of portions, the reference numerals in fig. 1 are used with suffix 1, 2, 3, etc. added thereto, to denote the respective portions constituting the component, and, for example, reference numerals 1301, 1302 … 1305 denote the respective portions of the sorting device 130. And when a single part, such as 1303, is made up of multiple components, each component is identified with the last three digits of the reference number of that part, plus a suffix numeral, such as 3031 and 3032. The above-described naming convention for reference numerals also applies to subsequent figures.

It should be noted that in the following description, the term "scan object" refers to a carrier on which information can be recorded. Information recorded on a scan object is converted into digital information by a scanning operation of a scanning device. The scan object includes, for example, plain paper, coated paper, plastic sheet, and the like. Further, although in the following description, the present disclosure is described with a paper of a book as an example of a scanning object, the scanning object may be, for example, a newspaper, a photograph, or the like.

Further, in the following description, a length direction of the supporting device 110 of the scanning device 100 is defined as an X direction, a direction perpendicular to a plane in which the supporting device 110 is located is defined as a Z direction (not shown), and a direction perpendicular to an XZ plane is defined as a Y direction.

As shown in fig. 2, the scanning apparatus 100 according to the present disclosure includes a supporting device 110, and the supporting device 110 is placed on a platform such as a table in a fixed and/or movable manner. A book 2011 as a scan target is supported on the supporting device 110. To facilitate subsequent scanning operations, one side of book 2011 (e.g., the spine) may be secured to support device 110 by holding device 120. The holding device 120 is, for example, a holding device that fixes the book 2011 to the surface of the supporting device 110 by, for example, holding the spine of the book 2011. Alternatively, in the case where the book 2011 is a non-registered document, the holding device 120 may fix the scan target by aligning the document and holding one side of the non-registered document.

As shown in FIG. 2, the page turning apparatus 140 according to the present disclosure includes a leading structure movement device 1401, a position adjustment device 1402, and a page bending suction structure support device 1403.

Further, the paging device 130 according to the present disclosure includes a sheet bending suction structure 1301, a non-bending sheet suction structure 1302, an air blowing and sheet pressing device 1303, a suction force generating device 1304, and a duct 1305. Wherein the wind blowing paging device 1303 includes a wind generating device 3031 and a wind blowing port 3032. The non-bendable sheet suction structure 1302 is a suction structure designed for a paper sheet having a large hardness, and for convenience of description, the sheet bending suction structure 1301 and the non-bendable sheet suction structure 1302 are collectively referred to as a suction structure hereinafter.

As shown, a page bending suction structure 1301 and a non-bendable page suction structure 1302 are provided as one body, and are connected to the leading structure moving device 1401 through a page bending suction structure support device 1403. Specifically, the page bending suction structure 1301 and the non-bending page suction structure 1302 are fixed to the page bending suction structure support device 1403, the page bending suction structure support device 1403 can move along a slide rail arranged on the driving structure moving device 1401, the slide rail is arranged at a predetermined angle relative to the XY plane, and when the page bending suction structure support device 1403 moves along the slide rail, the page bending suction structure 1301 and the non-bending page suction structure 1302 are driven to move along the direction of the slide rail. Further, the position of the entire leading structure moving device 1401 in the Z direction may be adjusted by the position adjusting device 1402, thereby adjusting the initial positions of the page bending suction structure 1301 and the non-bending page suction structure 1302 in the Z direction.

In addition, for example, a negative pressure suction force generated by the suction force generating device 1304 of the separation device 130 is transmitted to the curved sheet suction structure 1301 and the non-bendable sheet suction structure 1302 via the duct 1305, and suction cups are provided on the curved sheet suction structure 1301 and the non-bendable sheet suction structure 1302 to generate a suction force to the sheet when the suction cups are in contact with the sheet.

Specifically, once the book 2011 is moved to the scanning start position along with the supporting device 110, the page bending suction structure 1301 and the non-bending page suction structure 1302 move downward along the slide rail of the driving structure moving device 1401 along with the page bending suction structure supporting device 1403, and when the book is moved to a position where the book 2011 contacts with the uppermost sheet of paper, the suction force generating device 1304 generates a negative pressure suction force, and transmits the negative pressure suction force to the suction cups provided on the page bending suction structure 1301 and the non-bending page suction structure 1302 via the pipe 1305, and sucks the uppermost sheet of paper by the suction cups.

Once sucked, the sheet bending suction structure support device 1403 moves upward along the slide rail on the drive structure movement device 1401, thereby separating the uppermost sheet from the subsequent sheet by an angle, and when the separated angle reaches a predetermined value, the back surface of the uppermost sheet and the front surface of the subsequent sheet are simultaneously imaged by the cameras 1501 and 1502 provided, and the captured image is converted into digital information by subsequent processing. In this process, in order to better separate the uppermost paper from the subsequent paper, wind power may be generated by the wind power generating device 3031 of the blowing and pressing device 1303, and the subsequent paper may be pressed by blowing through the blowing port of the blowing and pressing device 1303, so as to achieve better separation.

At the same time as or after the image forming operation, the turned sheets are pressed by the kickback prevention devices 1601 and 1602 provided on both sides of the book 2011 to be prevented from being kicked back, facilitating the next page turning. Specifically, the anti-kickback apparatuses 1601 and 1602 on both sides each include a rotary device 6012/6022 and a rotary device position adjusting device 6011/6021, the rotary device 6012/6022 is provided in a "Z" shape, one end thereof is fixed to the rotary device position adjusting device 6011/6021, and the height of the fixed position is adjustable, and the other end thereof can press the turned sheets of paper by rotation of the rotary device 6012/6022, thereby preventing the turned sheets from being kicked back. Thus, the page turning and image forming operations of the single sheet are completed.

By repeating the above operation processes, continuous page turning and imaging operations of the book 2011 can be realized.

In the above description, although the present disclosure has been described in terms of the specific forms of the supporting device 110, the holding device 120, the paging device 130, the page turning device 140, the image forming device 150, and the kickback prevention device 160, the present disclosure is not limited thereto, but may take various other forms as long as the forms taken can fulfill the functions of the respective components.

For example, although the adsorption force generating device 1304 has been described by taking a vacuum adsorption device as an example, the adsorption force generating device 1304 is not limited thereto, but may include, for example, one or more of an electrostatic adsorption device, a magnetic adsorption device, and a biomimetic adsorption device. The force generated is not limited to the suction force, and may be a pushing force applied to the paper. That is, in the present 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 scan objects.

Further, the apparatus for assisting the sorting is not limited to the air blowing paging apparatus 1303, but a mechanical paging apparatus, a negative pressure paging apparatus, and the like may be employed as long as they can achieve the effect of assisting the sorting.

The various forms that the supporting device 110, the holding device 120, the paging device 130, the page turning device 140, the imaging device 150, and the kickback prevention device 160 according to the present disclosure may take and their arrangements are specifically described in patent CN 201721385718.2, which is incorporated herein by reference in its entirety.

Further, although in the above description, the paging device is described as including the non-bendable sheet adsorption structure 1302 and the air blowing and sheet pressing apparatus 1303, these components may be omitted without affecting the overall function of the scanning device 100.

Hereinafter, the present disclosure will be described centering on the grip device 120. In the following description, the holding device 120 according to the present disclosure is configured with a clamping device.

Hereinafter, a clamping device of the present exemplary embodiment, which is an example of the holding device 120 as described above and is configured to clamp a scanning object, is described with reference to the drawings. In the following description, the plane of the supporting device 110 or the held book 2011 is taken as a horizontal plane, and the direction perpendicular to the horizontal plane is taken as a vertical direction.

First, referring to fig. 3 showing a cross-sectional view of a clamping device according to a first embodiment of the present disclosure, fig. 3 shows only a portion of the clamping device, and the clamping device according to the present embodiment includes the other half symmetrical to the portion shown in fig. 3. As shown in fig. 3, the clamping device according to the present disclosure includes a lower clamping device 1203, and the lower clamping device 1203 is configured to provide a back clamping force of the book 201 when clamping the book 2011, so as to realize clamping of the book 2011 in cooperation with an upper clamping device 1201 described later. The lower clamping means 1203 may be provided in the form of a plate and flush with the plane of the support means 110. Alternatively, the lower clamping means 1203 may be provided with a toothing to achieve a better clamping.

The holding device according to the present exemplary embodiment further includes an upper holding device 1201, and the upper holding device 1201 is constituted by a vertical portion (first portion) and a horizontal portion (second portion), wherein the horizontal portion is parallel to the lower holding device 1203, so that the book 2011 is disposed between the horizontal portion of the upper holding device 1201 and the lower holding device 1203. In the present exemplary embodiment, a hole is provided on the lower grip device 1203 as described above, and a grip mechanism guide portion 1202 is provided on the horizontal portion of the upper grip device 1201, the grip mechanism guide portion 1202 being provided in the vertical direction and cooperating with the hole provided on the lower grip device 1203 so that the upper grip device 1201 can move in the vertical direction. Alternatively, a hole may be provided on the horizontal portion of the upper clamp device 1201, and a clamp mechanism guide portion 1202 may be provided in the vertical direction on the lower clamp device 1203 to achieve the approaching and separating between the horizontal portions of the lower clamp device 1203 and the upper clamp device 1201. In other words, the horizontal portion of the upper clamp 1201 may move in the vertical direction.

Further, the vertical portion of the upper clamp 1201 is provided as a lockhole plate 1212, and a lockhole may be provided on the lockhole plate 1212. Alternatively, the orifice plate 1212 may be provided separately and the orifice plate 1212 may be fixedly connected to the vertical portion of the upper clamp 1201. In other words, the vertical portion of the upper clamp 1201 is provided with a lock hole that mates with the lock cylinder.

In the grip device according to the present exemplary embodiment, a bracket 1209 is provided on a side of the lower grip device 1203 opposite to a side of the horizontal portion of the upper grip device 1201. The bracket 1209 may be provided in the form of a frame, for example, to form a "square" frame with the lower clamp 1203, and may be fixedly attached to the lower clamp 1203 by welding, screwing, or the like. Alternatively, the lower clamp 1203 may be integrally formed with the bracket 1209.

As shown in fig. 3, a motion conversion device and a pusher 1205 are provided between the lower clamp 1203 and the floor of the stand 1209.

The motion conversion device is a device capable of converting a rotary motion and a linear motion to each other, and includes a rotary motion part and a linear motion part that are fitted to each other. Specifically, the motion conversion means can convert a rotary motion into a linear motion. According to one embodiment, the motion transformation device may be, for example, a lead screw pair, the rotational motion part may be a lead screw nut 1210, and the linear motion part may be a lead screw 1207. According to another embodiment, the rotational movement part may be a nut, and the linear movement part may be a screw. Preferably, the motion transformation device according to the present exemplary embodiment has a self-locking function, i.e. in case the motion transformation device is a lead screw pair, the lead screw pair is a self-locking type lead screw pair, i.e. a self-locking type lead screw nut.

The push portion 1205 is a member configured to push a later-described lock assembly 1211. According to one embodiment, the pusher 1205 is a shaft with a tapered structure, where the tapered structure may be all or a portion of the pusher 1205, that is, the pusher 1205 may be a tapered structure, or the pusher 1205 may be in the form of a shaft with a tapered structure disposed with its axis coincident with the axis of the shaft. According to another embodiment, the pusher 1205 may be a helical structure and the diameter of the helical structure is continuously varied, preferably the diameter of the helical structure is continuously increased or decreased. In particular, the helix may be in the form of a protrusion or a groove provided on the conical structure.

Hereinafter, the scanning apparatus according to the present exemplary embodiment is described with a self-locking type lead screw nut as an example of the motion conversion apparatus, and a shaft with a tapered structure as an example of the pushing portion 1205. It should be understood that other forms of motion conversion devices and pushers 1205 are also within the scope of the present disclosure.

In the present exemplary embodiment, the pusher 1205 is fixedly (rigidly) connected to the self-locking lead screw 1207 and is mounted between the lower clamp 1203 and the bottom plate of the bracket 1209 by means of bearings. The pusher 1205 may be threadedly coupled to the self-locking lead screw 1207. Further, as shown in fig. 3, the pushing portion 1205 may be fixedly connected to the self-locking lead screw 1207 by providing a screw hole in the pushing portion and pressing the screw against the self-locking lead screw 1207.

It should be noted that in the above description, the pusher 1205 is fixedly connected to the self-locking type lead screw 1207, but the present invention is not limited thereto. The pusher 1205 may be fixedly coupled to the lead screw nut 1210. That is, the push portion 1205 may be fixedly connected to any one of the rotational movement portion and the linear movement portion. Hereinafter, a case where the pusher 1205 is fixedly connected to the self-locking lead screw 1207 will be described, but a case where the pusher 1205 is fixedly connected to the lead screw nut 1210 is also included in the scope of the present disclosure.

Further, as shown in fig. 3, the taper of the pusher 1205 is provided in a form that the upper part is small and the lower part is large, and the pusher 1205 is installed on the upper part of the self-locking type lead screw 1207. But the present disclosure is not limited thereto, the direction of the taper may be reversely set, and the push portion 1205 may also be installed at the lower portion of the self-locking type lead screw 1207.

Having described the arrangement of the pusher 1205 and the motion conversion means above, the arrangement of the other components of the clamping device according to the present exemplary embodiment is described below.

In the present exemplary embodiment, a base guide 1208 is mounted on a bottom surface of the bracket 1209 opposite to the lower clamping device 1203, and the base guide 1208 is disposed perpendicular to the bottom surface of the bracket 1209. Alternatively, the base guides 1208 may be integrally formed with the bracket 1209. In the present exemplary embodiment, the base guide 1208 is configured to guide movement of a later-described lock base 1206 in the vertical direction.

The clamping device according to this exemplary embodiment further comprises a lock base 1206, the lock base 1206 being provided with holes matching the base guides 1208 described above, such that the lock base 1206 can move in a vertical direction along the base guides 1208.

As described above, the self-locking type lead screw 1207 of the motion conversion apparatus is fixedly connected to the pusher 1205, and the lead screw nut 1210 of the motion conversion apparatus is fixedly mounted on the lock base 1206 according to the present exemplary embodiment, and the lead screw nut 1210 is engaged with the self-locking type lead screw 1207.

According to one embodiment, lead screw nut 1210 may be bolted to lock base 1206, or lock base 1206 and lead screw nut 1210 may be welded together. By connecting lock base 1206 to self-locking screw 1207 via screw nut 1210, lock base 1206 can be moved in the vertical direction along base guide 1208 while self-locking screw 1207 is rotated. Alternatively, with pusher 1205 fixedly connected to lead screw nut 1210, lead screw nut 1210 is used as the rotary motion part of the motion conversion device, such that lock base 1206 can be moved in a vertical direction along base guide 1208 by rotation of lead screw nut 1210.

In addition, lock core guide 1204 is fixedly mounted on lock base 1206. The key cylinder guide 1204 is a shaft disposed in the horizontal direction, and the height thereof can be adjusted by the fastened position. Alternatively, the key cylinder guide 1204 may be in the form of a slide rail.

A lock assembly 1211 according to the present exemplary embodiment is slidably mounted on the key cylinder guide 1204 along the key cylinder guide 1204. According to one embodiment, lock assembly 1211 may be mounted on key cylinder guide 1204 via a slide bearing such that lock assembly 1211 may slide along key cylinder guide 1204. In the present exemplary embodiment, the key cylinder guide 1204 is installed in a direction parallel to a direction in which the book is set, i.e., a horizontal direction.

It should be noted that although only a single base guide 1208 and a single clamping mechanism guide 1202 are shown in fig. 3, it should be understood that the clamping device according to the present exemplary embodiment includes portions that are symmetrical to the portions shown in fig. 3. Further, the number of the base guide 1208 and the chucking mechanism guide 1202 is not limited thereto as long as the functions thereof can be achieved.

Next, a lock assembly 1211 of the clamping device according to the present exemplary embodiment is described with reference to fig. 4 and 5, and fig. 5 shows a structural view of the lock assembly 1211 viewed from the back side of the clamping device.

As shown, the lock assembly 1211 according to the present exemplary embodiment includes a shaft hole 2111, and a key cylinder guide 1204 is installed in the shaft hole 2111 such that the lock assembly 1211 can move in a horizontal direction along the key cylinder guide 1204. In addition, the lock assembly 1211 also includes a key cylinder mounting portion 2114, and a key cylinder 2115 (a first portion of the lock) (see fig. 5) is mounted on the key cylinder mounting portion 2114. The lock assembly 1211 also includes a shaft hole base 2112, the shaft hole 2111 being disposed in the base 2112.

As shown in fig. 4, the lock assembly 1211 according to the present exemplary embodiment includes two shaft holes 2111 that are symmetrically disposed, and the shaft hole base 2112 includes a shaft hole connection portion to connect the two shaft hole bases 2112, in which the shaft holes 2111 are disposed, to each other. In the present exemplary embodiment, the shaft hole connection portion is provided in a form capable of being fitted with the tapered portion of the pusher 1205. That is, the shaft hole connection portion includes a tapered surface 2113, and the tapered surface 2113 can be fitted with a tapered surface of the push portion 1205.

Where the pusher 1205 is a helix disposed on the tapered structure, the lock assembly 1211 may include a portion that mates with the helix. For example, where the helix is a groove in a tapered configuration, the mating portion of the lock assembly 1211 may be a slider disposed in the groove. Alternatively, where the pusher 1205 is a protrusion disposed on a tapered structure, the portion of the lock assembly 1211 that mates therewith may be a slot that mates with the protrusion.

In the case where the push portion 1205 is a tapered structure and the shaft hole connection portion includes a tapered surface 2113, the lock assembly 1211 is applied with a force that causes the tapered surface 2113 to engage with the tapered structure, because the form of the tapered surface 2113 may cause disengagement from the push portion 1205 during pushing, as compared to the case where the push portion 1205 is a helical line. The application of force may be, for example, by providing a spring on the lock assembly 1211 that will apply a force to the lock assembly 1211 proximate to the push portion 1205, and the application of force may be in any other suitable manner.

In the above description, the spindle hole base 2112, the key cylinder mounting portion 2114 and the spindle hole connecting portion are described as separate components, but it should be understood that the spindle hole base 2112, the key cylinder mounting portion 2114 and the spindle hole connecting portion of the lock assembly 1211 according to the present disclosure may be integrally formed. Further, although the lock cylinder 2115 is depicted as being disposed at an upper portion of the lock assembly 1211, the disclosure is not so limited and the lock cylinder 2115 may be disposed at any height of the lock assembly 1211. Further, as shown, lightening holes may be provided on the lock assembly 1211 according to the present exemplary embodiment to lighten the weight of the lock assembly 1211.

The present disclosure has been described above with a particular form of lock assembly 1211, but the lock assembly 1211 according to the present exemplary embodiment may take other suitable forms as long as the lock assembly 1211, in cooperation with the push portion 1205, moves along the key cylinder guide 1204 while the push portion 1205 rotates as the lock assembly 1211 moves in a vertical direction with the lock base 1206.

The thus provided lock assembly 1211 is capable of allowing the key cylinder 2115 to be engaged with the lock hole provided on the first portion of the upper clamp device 1201 by moving along the key cylinder guide 1204. That is, the key cylinder guide 1204 and the first portion of the upper clamp device 1201 are oriented such that the key cylinder 2115 can engage a lock hole provided on the first portion of the upper clamp device 1201.

In the following, the installation of the lock cylinder 2115 on the lock assembly 1211 and how the lock cylinder 2115 is engaged with the lock hole are described with emphasis.

As shown in fig. 6, the lock cylinders 2115 according to the present exemplary embodiment are provided in a cylindrical shape, and the lock cylinders 2115 are provided in a row on the rear surface of the lock assembly 1211. In the present exemplary embodiment, the lock cylinder 2115 is telescopically disposed in the lock cylinder bore. Specifically, a spring may be disposed in the cylinder bore in which the cylinder 2115 is disposed to provide a spring back force to the lock first portion 2115 with the spring disposed therein.

In the present exemplary embodiment, although the lock cylinder 2115 is provided with the return force in the form of a spring provided in the cylinder bore, the present disclosure is not limited thereto, and the return force may be provided by injecting hydraulic oil to the cylinder bore, such as by means of a hydraulic pump. Any form of providing a spring back force to the lock cylinder 2115 is useful and within the scope of the present disclosure. That is, in the present exemplary embodiment, the lock cylinder 2115 is a retractable assembly.

Above, the structure of the clamping device according to the present exemplary embodiment is described with reference to the drawings. Hereinafter, an operation principle of the clamping device, that is, how the clamping device according to the present exemplary embodiment clamps the scan object, is described.

Returning to fig. 3, where the push portion 1205 includes a tapered structure, in the initial working state, the tapered surface of the tapered structure may not contact the tapered surface 2113 as the lock assembly 1211 is applied a force via a spring away from the keyhole plate 1212, i.e., the lock assembly is applied a force that mates the tapered surface 2113 with the tapered structure. In this case, the lock cylinder 2115 does not contact the orifice plate 1212, or is a predetermined distance apart. That is, when the lock assembly 1211 is furthest away from the orifice plate 1212, there is a gap between the lock cylinder 2115 and the lock bore. In this case, the locking hole plate 1212 may move up and down following the upper holding device 1201, so that in an initial state, a book 2011 of different thickness may be held.

When it is desired to clamp the book 2011, the upper clamping device 1201 is lifted to place the book 2011 between the upper clamping device 1201 and the lower clamping device 1203. At this time, the self-locking screw 1207 is rotated, so that the screw nut 1210 engaged therewith drives the lock base 1206 to move downward. In this case, lock assembly 1211 moves down with lock base 1206. Simultaneously, the tapered surface 2113 of the lock assembly 1211 moves downward to close the tapered surface of the push portion 1205. As the lock assembly 1211 moves further downward, the tapered surface 2113 of the lock assembly 1211 contacts the tapered surface of the push portion 1205, and the lock assembly 1211 is pushed by the tapered surface of the push portion 1205 to move along the plug guide 1204 in a direction toward the keyhole plate 1212 until the lock first portion 2115 is inserted into the keyhole of the keyhole plate 1212.

With the lock cylinder 2115 inserted into a lock hole of the lockhole plate 1212, the lock assembly 1211 directly engages the lockhole plate 1212. As the lock assembly 1211 engages the aperture plate 1212, the lock assembly 1211 moves downward to engage the aperture plate 1212 and the upper retaining device 1201 as the lock assembly 1211 moves further downward until the book 2011 is clamped.

In addition, since the self-locking lead 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.

When the book 2011 needs to be released, the self-locking lead screw 1207 is rotated reversely, so that the lock assembly 1211 can be disengaged from the keyhole plate 1212, the clamped state is released, and the book 2011 is released.

In the following, the arrangement of the locking holes on the locking hole plate 1212 and how to realize the self-locking function for the book 2011 with any thickness are mainly described. As shown in fig. 6, a schematic diagram of the arrangement of the locking holes on the locking hole plate 1212 is shown. In fig. 6, the locking holes are provided as circular holes arranged in a row.

Further, the position of the lock cylinder 2115 of the lock assembly 1211 is vertically aligned with the position of the lock hole on the lock hole plate 1212. That is, the lock assembly 1211 is provided with a lock cylinder 2115 corresponding to each vertical row of lock holes. In the present exemplary embodiment. The vertical alignment of the lock cylinder 2115 with the lock hole in the lock hole plate 1212 is achieved by the position of the clamp mechanism guide 1202. That is, in the present exemplary embodiment, the clamp mechanism guide 1202 is provided such that the lock hole on the lock hole plate 1212 is aligned in the vertical direction, that is, on the same vertical line, with the lock cylinder 2115.

By aligning the locking holes in the vertical direction, it is possible to insert the corresponding lock cylinder 2115 into the locking hole for a book 2011 of any thickness by rotating the self-locking screw 1207 a small number of turns.

Specifically, for a thick book 2011, the upper clamp 1201 is lifted to a higher elevation and contacts the upper surface of the book 2011, at which time, upon rotation of the self-locking lead screw 1207, the lock assembly 1211 moves toward the keyhole plate 1212 as described above, at which time, due to the upper clamp 1201 being lifted to a higher elevation, the lock cylinder 2115 tends to contact and engage the keyhole located on the lower side. Conversely, when the thickness of the book 2011 is small, the height at which the upper grip 1201 is lifted off is small, and the lock first portion 2115 tends to contact and engage with the lock hole located on the upper side. That is, in the present exemplary embodiment, books 2011 of different thicknesses are accommodated by lifting off the upper clamping device 1201, and after the upper clamping device 1201 contacts the book 2011, the distance that the lock assembly 1211 is required to move toward the lockhole plate 1212 is constant, which is equal to the distance between the lock assembly 1211 and the lockhole plate 1212 in the initial position. Thus, the distance between the lock assembly 1211 and the aperture plate 1212 in the initial position needs to be properly set, so that the book 2011 can be clamped with a small amount of operation.

It should be noted that although in the above description, the lock cylinder 2115 is provided on the lock assembly 1211, and the lock hole is provided on the lock hole plate 1212. The present invention may be reversed with the lock cylinder 2115 disposed in the orifice plate 1212 and the lock bore disposed in the lock assembly 1211.

Further, the stepless hole lock according to the present exemplary embodiment may be further provided with a rotation shaft, which may be driven by a motor. The direction of this rotation axis is set to be along the holding direction of the book 2011, that is, the Y direction shown in fig. 2, so that in a state where the book 2011 is held, the entire turning can be realized, thereby preventing or reducing unevenness of the book caused by an increase of turned pages in the page turning process.

Having described the clamping device according to the present exemplary embodiment with reference to the accompanying drawings, the electroless hole lock according to the present exemplary embodiment is simple to operate, and is quick and efficient.

With reference to fig. 7, 8 and 9, a transmission system based on the above-described gripping device will be described.

In order to rotate the pusher 1205, a second gear 1213 is fixedly provided on the pusher 1205 coaxially therewith, and the pusher 1205 and the second gear 1213 may be screw-fixedly connected. A first gear 1214 is arranged, so that the first gear 1214 and a second gear 1213 are in transmission fit to complete the rotation action of the pushing part 1205; the first gear 1214 may be driven using a hand wheel or a motor. In the clamping operation, since the clamping device is required to clamp the scan object first and rotate along with the rotation axis during the scanning, the second gear 1213 fixed coaxially with the pushing part 1205 is separated from the first gear 1214 during the rotation. In order to ensure that the second gear 1213 and the first gear 1214 can be brought back into engagement during the return of the clamping device to the zero position, either at the completion of the scan or at a standstill, the first gear 1214 or the second gear 1213 is arranged in a configuration which is axially movable along the axis of the respective gear, so that when the clamping device returns to the zero position, in the case where the teeth of the first gear 1214 and the second gear 1213 are misaligned so as not to be able to be re-engaged, the first gear 1214 is lifted up by the second gear 1213 in the axial direction, or the second gear 1213, is pushed up axially downward by the first gear 1214, and, when used next time, the first gear 1214 is rotated by a slight angle, the first gear 1214 and the second gear 1213 can be brought back into the desired position of engagement, while the first gear 1214 or the second gear 1213 is reset, thereby avoiding the problem that the teeth of the second gear 1213 and the first gear 1214 are staggered and cannot be meshed to cause interference.

According to a preferred embodiment, with reference to fig. 8-10, in the case where the first gear 1214 is axially movable and the second gear 1213 is fixed, a third gear 1215 in meshing engagement with the first gear 1214 is further included, the first gear 1214 is in driving engagement with the second gear 1213, and the first gear 1214 is axially movable; wherein the third gear 1215 is always in mesh with the first gear 1214 when the second gear 1213 is able to pivot between the first and second positions, 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.

Preferably, the third gear 1215 is driven by a handwheel 1216, although the third gear 1215 could be driven by a motor. When a book 2011 needs to be clamped, the hand wheel 1216 is rotated, and the third gear 1215, the first gear 1214 and the second gear 1213 are in meshing transmission, so that the pushing part 1205 is driven to rotate, and finally the book 2011 is clamped and fixed, at this time, the transmission state is as shown in fig. 8, namely, the initial state before the clamping device rotates along with the rotating shaft. As the scanning process proceeds, the clamping device rotates along with the rotation shaft, and then the second gear 1213 fixed coaxially with the pushing part 1205 is driven to rotate synchronously, the second gear 1213 is separated from the first gear 1214, and the motion locus 12131 of the second gear 1213 is as shown in fig. 9. When the scanning is finished or stopped, the clamping device returns to the zero position, the second gear 1213 reversely returns to the position meshed with the first gear 1214 along the circular motion track 12131, and in the case that the teeth of the first gear 1214 and the second gear 1213 are misaligned and cannot be meshed again, the first gear 1214 is lifted up by the second gear 1213 along the axial direction, as shown in fig. 10, when the hand wheel 1216 is rotated, the third gear 1215 drives the first gear 1214 to rotate by a slight angle, so that the first gear 1214 and the second gear 1213 can be brought back to the ideal position for meshing, and the first gear 1214 is reset.

Since the first gear 1214 is axially lifted up by the second gear 1213, that is, the first gear 1214 is called a sliding gear, the power for restoring the first gear 1214 may be the self weight of the first gear 1214 or the elastic force of a spring fixed on the first gear 1214, when the first gear 1214 is lifted up, the spring is compressed, and when the first gear 1214 and the second gear 1213 are brought back to the ideal position for meshing, the first gear 1214 is restored by the restoring force of the spring. In addition, the power may be a magnetic force, or the like, that is, the sliding gear may return the sliding gear toward the predetermined position by one or more of gravity, an elastic force, and a magnetic force, which are all included in the scope of the present invention.

According to another preferred embodiment of the invention, the second gear 1213 is fixed while said first gear 1214 is axially movable, i.e. said first gear 1214 is called a sliding gear, which is arranged to the corresponding shaft by means of a sliding spline arrangement, preferably an internally splined gear. The first gear 1214 is provided in a sliding spline structure, and is movable in the axial direction and can transmit torque. The power for returning the first gear 1214 may be one or more of gravity, spring force, magnetic force, and the like.

According to another preferred embodiment of the present invention, in the case that the first gear 1214 is capable of moving along the axial direction and the second gear 1213 is fixed, the present invention further comprises a third gear 1215 in meshed transmission with the first gear 1214, the first gear 1214 is in transmission fit with the second gear 1213, the first gear 1214 is capable of moving along the axial direction of the gears, and the first gear 1214 is disposed on the corresponding shaft by a sliding spline structure, preferably an internal spline gear.

According to another preferred embodiment of the present invention, in the case that the second gear 1213 is movable in the axial direction and the first gear 1214 is fixed, the second gear 1213 is provided on a corresponding shaft, preferably an internally splined gear, by a sliding spline structure, so that the second gear 1213 can move in the axial direction and transmit torque, thereby rotating the pushing part 1205.

According to another preferred embodiment of the present invention, in the case that the second gear 1213 is capable of moving along the axial direction and the first gear 1214 is fixed, the present invention further comprises a third gear 1215 in meshed transmission with the first gear 1214, the first gear 1214 is in transmission fit with the second gear 1213, the second gear 1213 is capable of moving along the axial direction of the gears, and the second gear 1213 is disposed on the corresponding shaft, preferably an internally splined gear, by a sliding spline structure, so as to rotate the pushing part 1205.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present disclosure should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (9)

1. A transmission system, comprising:

a first gear (1214) disposed on a first shaft, the first gear (1214) being; and

a second gear (1213), the second gear (1213) being provided to a second shaft,

wherein the second shaft is pivotable 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 cooperable, 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 axially movable along a corresponding axis, and the one of the first gear (1214) and the second gear (1213) that is axially movable along the corresponding axis is applied with a return force that is capable of moving the gear toward a predetermined position.

2. The transmission system of claim 1, further comprising:

a third gear (1215), the third gear (1215) being fixedly disposed on a third shaft, and the third gear (1215) being engaged with the first gear (1214).

3. The transmission system of claim 2, wherein:

the third gear (1215) is in constant mesh with the first gear (1214) during pivoting of the second shaft between the first and second positions.

4. A transmission system according to any one of claims 1 to 3, wherein:

the distance between the first and second axes 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. A transmission system according to any one of claims 1 to 3, wherein:

of the first gear (1214) and the second gear (1213), a gear that is axially movable along the corresponding shaft is referred to as a slide gear that is provided to the corresponding shaft by a slide spline structure.

6. A transmission system according to any one of claims 1 to 3, wherein:

a gear of the first gear (1214) and the second gear (1213) that is axially movable along the corresponding shaft is referred to as a slide gear that returns the slide gear toward the predetermined position by one or more of gravity, an elastic force, and a magnetic force.

7. The transmission system of claim 6, wherein:

and a spring is arranged on the shaft corresponding to the sliding gear, so that the sliding gear returns towards the preset position.

8. A holding device configured to hold a scanning object and to rotate along a rotation axis provided in a holding direction of the held scanning object, characterized in that the holding device comprises the drive system according to any one of claims 1 to 7.

9. A scanning device (100) comprising a holding device according to claim 8,

a page flipping device (140) configured to separate the scan objects, an

An imaging device (150) configured to image a scan subject.

Images