An intelligent book return sorting device for library

Abstract

The present invention discloses an intelligent book return sorting device for a library, and relates to the technical field of library-related auxiliary equipment. The present invention includes a recycling component, including a recycling box, a positioning plate symmetrically arranged inside the recycling box, and a folding plate at the opening position of the recycling box, a storage component, including two storage boxes fixed on two symmetrical side walls of the recycling box and two linkage rods respectively rotating through the internal positions of the storage boxes, a limited pushing component, including two alignment plates symmetrically arranged inside the conveying cavity and a plurality of triangular slides linearly evenly arranged above the alignment plates, and a conveying component, including a U-shaped plate inside the conveying cavity and a lead screw directly below the U-shaped plate. The present invention controls the lifting and lowering activities of the triangular slide by an electromagnet to realize automatic classification and processing of returned books, and at the same time drives the rotation of the books through the angle column, so that the books can accurately fall onto the placement plate, thereby realizing sorting and sorting of the recycled books.

Description

Technical Field

[0001] The invention belongs to the technical field of library-related auxiliary equipment, and in particular relates to an intelligent book return sorting device for a library. Background Art

[0002] Libraries are public places where people can freely obtain knowledge and information. At the same time, a large number of books are circulated and borrowed every day. At present, most libraries still use the barcode plus magnetic stripe operation method. The borrowing process still requires manual opening of the book and finding the barcode position for scanning. However, with the surge in the number of readers, such an operation process is more cumbersome, and the efficiency of borrowing and returning books is also low. In addition, the barcode is easily damaged, which affects the normal borrowing and returning procedures and reduces the satisfaction of readers. Due to the emergence of self-service borrowing and returning machines and book return boxes, according to the existing public document CN107813263B, the book return sorting device will be installed at the entrance of the library, and the borrower only needs to put the book into the device.

[0003] However, in order to improve the efficiency of book return by borrowers, the existing libraries will install corresponding book return boxes in the library. Although this way of returning books improves the efficiency of returning books, due to the large number of returned book types and the lack of the function of classifying and sorting the types of books, it will lead to the problem of excessive mixing of different types of books, reducing the classification efficiency of managers. When collecting books, the existing book return device does not have the function of sorting the classified books. Therefore, after each classification of books, the classified books are piled up in a mess with the previously classified books. The collected books are prone to collision or page opening during the classification process, causing damage to the books. To this end, we provide a library book intelligent book return sorting device to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent book return sorting device for a library, which controls the lifting and lowering of a triangular slide by an electromagnet to control the rotation of a U-shaped plate, thereby realizing automatic classification and processing of returned books. At the same time, the rotation of the books is driven by an angle column so that the books can be accurately dropped onto a placement board, thereby realizing sorting and arranging of the recovered books.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The invention provides an intelligent book return sorting device for a library, comprising a recycling component, a recycling box, a positioning plate symmetrically arranged inside the recycling box, and a folding plate at an opening position of the recycling box, the interior of the recycling box is arranged as a conveying cavity, the upper end surface of the recycling box is provided with a conveying port connected with the conveying cavity, a scanning probe is fixed at an inner position of a recess opened on a side wall of the recycling box directly below the folding plate, a storage component comprises two storage boxes fixed on two symmetrical side walls of the recycling box and two linkage rods respectively rotating through the inner positions of the storage boxes, a plurality of storage cavities linearly evenly arranged along the side of the recycling box are arranged inside the storage box, angle columns are arranged inside the storage cavities, and box plates for sealing the storage cavities are hinged on the side walls of the storage box opposite to the recycling box. A door, a placing plate is arranged below the angle column near the box door, a limiting pushing assembly comprises two alignment plates symmetrically arranged inside the conveying cavity and a plurality of triangular slides linearly evenly arranged above the alignment plates, the positions of the triangular slides correspond one to one with the positions of the angle columns, telescopic openings are provided at the positions of the upper end surfaces of the alignment plates corresponding to the triangular slides, an electromagnet is fixed at the bottom of the telescopic opening, a conveying assembly comprises a U-shaped plate inside the conveying cavity and a lead screw directly below the U-shaped plate, a slip ring block rotatably connected to the ball seat on the lead screw is arranged directly below the U-shaped plate, a motor connected to the lead screw transmission is fixed on the side wall of the recovery box, a plurality of storage grooves evenly distributed in a ring shape along the sides of the angle columns are provided on the circumference thereof, and each angle column is sleeved on the corresponding linkage rod.

[0007] The present invention is further configured such that the folding plate is rotatably arranged at the position of the conveying port, and two arc springs abutting against the side wall of the recovery box above the conveying port are fixed to the end surface of the folding plate.

[0008] The present invention is further configured such that a lifting opening is provided at a position inside the recycling box corresponding to the bottom of the positioning plate, and the conveying cavity and the lifting opening are connected through a limiting opening provided at the bottom of the recycling box.

[0009] The present invention is further configured such that a support bar connected to the bottom of the U-shaped plate is fixed on the upper end surface of the positioning plate, a limiting bar sliding in the internal position of the lifting port is fixed on the bottom of the positioning plate passing through the limiting port, and a pushing spring is fixed at the bottom of each limiting bar.

[0010] The present invention is further configured such that the lead screw is located between two positioning plates, each positioning plate is located between the lead screw and the alignment plate respectively, a metal plate sliding inside the telescopic opening is fixed to the lower end surface of the triangular slide, two symmetrically arranged L-shaped plates are fixed to the lower end surface of the metal plate, and a return spring is fixed to the bottom of each L-shaped plate.

[0011] The present invention is further configured such that a plurality of strip grooves evenly distributed in an annular shape are opened on the circumferential side of each linkage rod, a plurality of rubber strips sliding in the inner positions of the strip grooves are fixed to the inner side wall of the angle column, and a compression spring abutting against the bottom of the storage box is fixed to the bottom of the placement plate.

[0012] The present invention is further configured such that a groove is provided on the upper end surface of the U-shaped plate, a friction rotating belt is provided inside the groove, and rotating rods rotatably connected to the inner wall of the U-shaped plate are rotatably provided at both ends of the friction rotating belt.

[0013] The present invention is further configured such that a connecting U frame is fixed to the upper end surface of the slip ring block, and an annular block rotatably connected to the connecting U frame is fixed to the middle position of the lower end surface of the U-shaped plate.

[0014] The present invention is further configured such that both side walls of the recycling box are provided with drop openings at the upper portion of each storage cavity, and the drop openings are connected to the interior of the conveying cavity, and inclined plates are fixed on the side walls of the recycling box at the bottom of the drop openings, and the highest end of the inclined plate is lower than the lowest end position of the rotation angle of the U-shaped plate.

[0015] The present invention is further configured such that a belt column is fixed between the lead screw and the motor, a rotating column is fixed to the end of the linkage rod and the motor on the same side, and the belt column and the rotating column are connected through a belt strip transmission.

[0016] The present invention has the following beneficial effects:

[0017] It is scanned by a scanning probe, and one of the electromagnets in the recycling box is controlled to be de-energized, thereby causing the triangular slide to move upward, and at the same time, the books are sent into the conveying port, and then the books are directly conveyed from the conveying port to the upper end surface of the U-shaped plate. At this time, the sensor arranged on the upper end surface of the U-shaped plate senses the books, and controls the rotation of the motor, and the motor drives the lead screw to rotate, thereby driving the U-shaped plate to move. When the U-shaped plate moves to connect with the surface wall of the triangular slide, the U-shaped plate will be pushed and rotated, and the U-shaped plate will tilt, and the books on the upper end surface of the U-shaped plate will directly slide into the storage box opposite to the inclined surface of the U-shaped plate, thereby realizing automatic classification processing of returned books.

[0018] After the books slide from the inner position of the U-shaped plate to the inside of the storage box, the books will directly slide into the storage groove on the surface side of the angle column. At the same time, when the motor drives the lead screw to rotate, it also drives the belt strip to rotate through the belt column, and thereby controls the rotation of the linkage rod. The linkage rod drives the angle column to rotate, thereby the angle column drives the books in the storage groove to move to the upper position of the placement plate, and then the books will compress the placement plate downward, so that the subsequent books can be pressed so that the upper surface of the books is consistent with the upper end surface of the placement plate in the initial state, thereby realizing the sorting and sorting of the recovered books.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure of the limiting pushing component and the conveying component in the present invention.

[0023] Figure 3 It is the internal structure diagram of the storage box in the present invention.

[0024] Figure 4 This is a structural linkage working diagram of the angle column, linkage rod, U-shaped plate and lead screw in the present invention.

[0025] Figure 5 It is a structural combination diagram of the alignment plate, the triangular slide plate and the electromagnet in the present invention.

[0026] Figure 6 It is a structural combination diagram of the U-shaped plate, the friction rotating belt and the slip ring block in the present invention.

[0027] Figure 7 It is the external structure diagram of the recycling box in the present invention.

[0028] Figure 8 It is a cross-sectional view of the internal structure of the recycling box in the present invention.

[0029] Fig. 9 It is a structural schematic diagram of the triangular slide plate in the present invention.

[0030] Fig.10 It is a structural diagram of the positioning plate in the present invention.

[0031] Fig.11 It is a structural diagram of the angle column in the present invention.

[0032] Fig.12 It is a structural diagram of the placement plate in the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 100-recycling component; 101-recycling box, 102-scanning probe, 103-positioning plate, 103a-limiting bar, 103b-support bar, 103c-pushing spring, 104-folding plate, 104a-arc spring; 105-dropping mouth, 105a-tilting plate, 106-transportation cavity, 107-lifting mouth, 107a-limiting mouth, 108-transportation mouth, 200-storage component; 201-box door, 202-storage box, 203-angle column, 203a-storage slot, 203b-rubber strip, 204-linkage rod, 204a-strip slot, 204b-rotation Column, 205-storage cavity, 206-placing plate, 206a-compression spring, 300-limiting pushing assembly, 301-alignment plate, 301a-telescopic opening, 302-triangular slide plate, 302a-metal plate, 302b-L-shaped plate, 302c-reset spring, 303-electromagnet, 400-conveying assembly, 401-U-shaped plate, 401a-groove, 401b-annular block, 402-screw, 403-motor, 403a-belt column, 404-belt strip, 405-friction rotating belt, 405a-rotating rod, 406-slip ring block, 406a-connecting U frame. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0036] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 , which is the first embodiment of the present invention, provides an intelligent book return sorting device for a library, wherein the lifting and lowering activities of the triangular slide 302 are controlled by the electromagnet 303, thereby controlling the rotation of the U-shaped plate 401, so as to realize automatic classification and processing of returned books, and at the same time, the rotation of the books is driven by the angle column 203, so that the books can be accurately dropped onto the placement plate 206, so as to realize sorting and sorting of the recovered books.

[0037] Specifically, the recycling component 100 includes a recycling box 101, a positioning plate 103 symmetrically arranged inside the recycling box 101, and a folding plate 104 at the opening position of the recycling box 101; the storage component 200 includes two storage boxes 202 fixed on two symmetrical side walls of the recycling box 101 and two linkage rods 204 respectively rotating through the internal positions of the storage boxes 202; the limiting pushing component 300 includes two alignment plates 301 symmetrically arranged inside the conveying cavity 106 and a plurality of triangular slide plates 302 linearly and evenly arranged above the alignment plates 301; the conveying component 400 includes a U-shaped plate 401 inside the conveying cavity 106 and a lead screw 402 directly below the U-shaped plate 401;

[0038] By setting and using the above structure, the U-shaped plate 401 is moved by the rotation of the lead screw 402 to transport the books, and the U-shaped plate 401 is rotated by the rise of the triangular slide 302, and the books on the upper end surface of the U-shaped plate 401 will directly fall into the storage box 202, so that the books are recycled.

[0039] According to the figure Figure 3 , Figure 8 and Fig.11 The interior of the recycling box 101 is configured as a conveying chamber 106, and a conveying port 108 connected to the conveying chamber 106 is provided on the upper end surface of the recycling box 101. A scanning probe 102 is fixed inside a recess provided on the side wall of the recycling box 101 directly below the folding plate 104. A plurality of storage chambers 205 are provided inside the storage box 202 and are linearly and evenly distributed along the side of the recycling box 101. An angle column 203 is provided inside the storage chamber 205. A box door 201 for sealing the storage chamber 205 is hinged on the side wall of the storage box 202 opposite to the recycling box 101. The lower part of the angle column 203 near the box door 201 is A placing plate 206 is arranged on the side, the positions of the triangular slide plate 302 and the angle column 203 correspond one to one, and a telescopic opening 301a is opened at the position of the upper end surface of the alignment plate 301 corresponding to the triangular slide plate 302, and an electromagnet 303 is fixed to the bottom of the telescopic opening 301a, and a slip ring block 406 rotatably connected to the ball seat on the lead screw 402 is arranged directly below the U-shaped plate 401, and a motor 403 connected to the lead screw 402 is fixed on the side wall of the recovery box 101. A plurality of storage grooves 203a are arranged in a ring shape and uniformly distributed along the side of the angle column 203, and each angle column 203 is sleeved on the corresponding linkage rod 204;

[0040] When the structure is used, when the borrower returns the book, the information code on the book is aligned with the position of the scanning probe 102, and the scanning probe 102 scans it, and thereby controls one of the electromagnets 303 in the recycling box 101 to be powered off, thereby causing the triangular slide 302 to move upward, and at the same time, the book is sent into the conveying port 108, and then the book is directly conveyed from the conveying port 108 to the upper end surface position of the U-shaped plate 401. At this time, the sensor arranged on the upper end surface of the U-shaped plate 401 senses the book and controls the motor 403 to rotate, and the motor 403 drives the lead screw 402 to rotate, and then drives the U-shaped plate 401 to move. When the U-shaped plate 401 moves to the surface wall of the triangular slide 302, the U-shaped plate 401 will be pushed and rotated, and the U-shaped plate 401 will tilt, and the books on the upper end surface of the U-shaped plate 401 will directly slide into the storage box 202 opposite to the inclined surface of the U-shaped plate 401, thereby realizing automatic classification processing of the returned books;

[0041] At the same time, after the books slide from the inner position of the U-shaped plate 401 to the inner part of the storage box 202, the books will directly slide into the storage groove 203a on the surface side of the angle column 203. At the same time, when the motor 403 drives the lead screw 402 to rotate, it also drives the belt strip 404 to rotate through the belt column 403a, and thereby controls the rotation of the linkage rod 204. The linkage rod 204 drives the angle column 203 to rotate, thereby the angle column 203 drives the books in the storage groove 203a to move to the upper position of the placement plate 206, and then the books will compress the placement plate 206 downward, so that the subsequent books can be pressed so that the upper surface of the books is consistent with the upper end surface of the placement plate 206 in the initial state, thereby realizing the sorting and sorting of the recovered books;

[0042] At the same time, after the book slides on the U-shaped plate 401, the sensor on the U-shaped plate 401 stops sensing, and then the motor 403 reverses, and the electromagnet 303 is energized to control the U-shaped plate 401 to move to the initial state.

[0043] Further, according to Figure 2 It can be seen that the folding plate 104 is rotatably set at the position of the conveying port 108, and two arc springs 104a are fixed to the end face of the folding plate 104, which are in contact with the side wall of the recycling box 101 above the conveying port 108. When the borrower pushes the book into the conveying port 108, the folding plate 104 will be pushed, and the folding plate 104 will compress the arc spring 104a. Therefore, when the book falls to the upper end face of the U-shaped plate 401, the arc spring 104a pushes the folding plate 104 to return to its original position and thereby block the conveying port 108.

[0044] Further, according to Figure 7It can be seen that the two side walls of the recycling box 101 are provided with a drop-out opening 105 corresponding to the upper part of each storage cavity 205, and the drop-out opening 105 is connected to the interior of the conveying cavity 106, and an inclined plate 105a is fixed on the side wall of the recycling box 101 located at the bottom of the drop-out opening 105, and the highest end of the inclined plate 105a is lower than the lowest end position of the rotation angle of the U-shaped plate 401. When the U-shaped plate 401 is tilted, the books on the upper end surface of the U-shaped plate 401 will directly fall to the upper end position of the inclined plate 105a, and then the books will directly fall to the surface side of the angle column 203. Therefore, after the rotation of the angle column 203, the books will slide into the corresponding storage groove 203a.

[0045] Further, according to Figure 4 and Figure 7 It can be seen that a belt column 403a is fixed between the screw 402 and the motor 403, and a rotating column 204b is fixed to the end of the linkage rod 204 and the motor 403 on the same side. The belt column 403a and the rotating column 204b are connected by a belt strip 404. When the motor 403 is working, the motor 403 will drive the belt strip 404 and the rotating column 204b to rotate through the belt column 403a.

[0046] It should be noted that the scanning probe 102 and the multiple electromagnets 303 are used in coordination and are operated by the control center. At the same time, the sensor on the upper end of the U-shaped plate 401 and the motor 403 work in conjunction, and the multiple electronic structures used are all powered by an external power supply. Example 2

[0047] See also Figure 8 and Fig.10 On the basis of Example 1, this embodiment supports the edge of the U-shaped plate 401 by pushing the positioning plate 103 through the pushing spring 103c, thereby ensuring the stable movement of the U-shaped plate 401.

[0048] Specifically, a lifting port 107 is provided at a position corresponding to the bottom of the positioning plate 103 inside the recycling box 101, and the conveying cavity 106 and the lifting port 107 are connected through a limiting port 107a provided at the bottom of the recycling box 101. A support bar 103b connected to the bottom of the U-shaped plate 401 is fixed to the upper end surface of the positioning plate 103, and a limiting bar 103a sliding in the internal position of the lifting port 107 is fixed to the bottom of the positioning plate 103 passing through the limiting port 107a, and a pushing spring 103c is fixed to the bottom of each limiting bar 103a;

[0049] By setting up and using the above-mentioned structure, when the lead screw 402 drives the U-shaped plate 401 to move, the lead screw 402 will slide along the upper end surface of the support bar 103b. At the same time, when the U-shaped plate 401 rotates, the U-shaped plate 401 will compress the support bar 103b, and then the support bar 103b controls the positioning plate 103 and the limit bar 103a to compress the pushing spring 103c. When the U-shaped plate 401 does not rotate, the limit bar 103a, the positioning plate 103 and the support bar 103b are pushed by the pushing spring 103c, so as to support the edge of the U-shaped plate 401 and ensure the stable movement of the U-shaped plate 401. Example 3

[0050] See also Figure 4 and Figure 6 Based on the first embodiment, this embodiment can drive the books to be placed flat in the U-shaped plate 401 by moving the friction rotating belt 405.

[0051] Specifically, a groove 401a is provided on the upper end surface of the U-shaped plate 401, a friction rotating belt 405 is provided inside the groove 401a, rotating rods 405a rotatably connected to the inner wall of the U-shaped plate 401 are rotatably provided at both ends inside the friction rotating belt 405, a connecting U frame 406a is fixed on the upper end surface of the slip ring block 406, and a ring block 401b rotatably connected to the connecting U frame 406a is fixed in the middle position of the lower end surface of the U-shaped plate 401;

[0052] By setting and using the above structure, when the U-shaped plate 401 is pushed by the triangular slide plate 302, the U-shaped plate 401 will rotate on the connecting U frame 406a through the annular block 401b. At the same time, when the book falls onto the U-shaped plate 401, the bottom of the book will move with the friction rotating belt 405. At the same time, due to the gravity of the book itself, the friction rotating belt 405 will rotate in the groove 401a, which will drive the collection to slide in the U-shaped plate 401, so that the book can be directly placed flat in the U-shaped plate 401. Example 4

[0053] See also Figure 2 , Figure 5 and Fig. 9 On the basis of Example 1, this embodiment can make the triangular slide plate 302 move upward quickly by pushing the L-shaped plate 302b by the return spring 302c.

[0054] Specifically, the lead screw 402 is located between the two positioning plates 103, and each positioning plate 103 is located between the lead screw 402 and the alignment plate 301, and a metal plate 302a that slides inside the telescopic opening 301a is fixed to the lower end surface of the triangular slide plate 302, and two symmetrically arranged L-shaped plates 302b are fixed to the lower end surface of the metal plate 302a, and a return spring 302c is fixed to the bottom of each of the L-shaped plates 302b;

[0055] Through the setting and use of the above-mentioned structure, when the electromagnet 303 is powered off, the electromagnet 303 stops adsorbing the metal plate 302a, and then the reset spring 302c will push the L-shaped plate 302b and the metal plate 302a to extend out from the internal position of the telescopic opening 301a, and push the triangular slide plate 302 upward. Therefore, when the lead screw 402 drives the U-shaped plate 401 to move to connect with the triangular slide plate 302, the movement of the U-shaped plate 401 is hindered and rotates. At the same time, after the electromagnet 303 is powered on, the electromagnet 303 will adsorb the metal plate 302a, thereby the metal plate 302a moves downward and compresses the reset spring 302c. Example 5

[0056] See also Figure 3 , Figure 4 , Fig.11 and Fig.12 On the basis of the first embodiment, this embodiment ensures that the book has sufficient time to slide onto the placement board 206 by using the cooperation between the strip groove 204a and the rubber strip 203b.

[0057] Specifically, a plurality of strip grooves 204a are uniformly arranged in an annular shape on the circumference of each linkage rod 204, a plurality of rubber strips 203b sliding in the inner position of the strip grooves 204a are fixed to the inner wall of the angle column 203, and a compression spring 206a abutting against the inner bottom of the storage box 202 is fixed to the bottom of the placement plate 206;

[0058] By setting and using the above structure, when the book slides to the upper end surface of the placing plate 206, the book will compress the placing plate 206, and the placing plate 206 will move downward and compress the compression spring 206a. At the same time, the angle column 203 drives the book to rotate to the upper position of the placing plate 206, and the book will move out of the storage groove 203a and slide onto the placing plate 206. At this time, the placing plate 206 limits the book, so that the angle column 203 cannot rotate. The rotation of the linkage rod 204 will make the rubber strip 203b rotate from one strip groove 204a to another strip groove 204a, so as to achieve stable operation between the structures, and after all the books are out of the storage groove 203a, the strip groove 204a will continue to drive the rubber strip 203b and the angle column 203 to rotate.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An intelligent book return sorting device for a library, characterized in that: include, A recycling assembly (100) comprises a recycling box (101), a positioning plate (103) symmetrically arranged inside the recycling box (101), and a folding plate (104) located at an opening of the recycling box (101); the interior of the recycling box (101) is arranged as a conveying cavity (106); an upper end surface of the recycling box (101) is provided with a conveying port (108) connected to the conveying cavity (106); a scanning probe (102) is fixed inside a recess provided on a side wall of the recycling box (101) directly below the folding plate (104); A storage assembly (200) comprises two storage boxes (202) fixed on two symmetrical side walls of a recovery box (101) and two linkage rods (204) respectively rotating through the internal positions of the storage boxes (202); a plurality of storage cavities (205) uniformly distributed linearly along the side of the recovery box (101) are arranged inside the storage boxes (202); angle columns (203) are arranged inside the storage cavities (205); a box door (201) for sealing the storage cavities (205) is hingedly connected on the side wall of the storage box (202) opposite to the recovery box (101); and a placement plate (206) is arranged below the angle column (203) near the position of the box door (201); The position-limiting pushing assembly (300) comprises two alignment plates (301) symmetrically arranged inside the conveying cavity (106) and a plurality of triangular slide plates (302) linearly evenly arranged above the alignment plates (301), wherein the positions of the triangular slide plates (302) correspond one to one with the positions of the angle columns (203), and telescopic openings (301a) are provided on the upper end surfaces of the alignment plates (301) at positions corresponding to the triangular slide plates (302), and an electromagnet (303) is fixed at the bottom of the telescopic opening (301a); and, The conveying assembly (400) comprises a U-shaped plate (401) located inside the conveying chamber (106) and a lead screw (402) located directly below the U-shaped plate (401); a slip ring block (406) rotatably connected to a ball seat on the lead screw (402) is disposed directly below the U-shaped plate (401); and a motor (403) drivingly connected to the lead screw (402) is fixed on a side wall of the recovery box (101); The circumferential side of the angle column (203) is provided with a plurality of storage grooves (203a) evenly distributed in a ring shape along the side thereof, and each angle column (203) is sleeved on a corresponding linkage rod (204).

2. The intelligent book return sorting device for a library according to claim 1, characterized in that: The folding plate (104) is rotatably arranged at the position of the conveying port (108), and two arc springs (104a) are fixed to the end surface of the folding plate (104) and are in contact with the side wall of the recovery box (101) above the conveying port (108).

3. The intelligent book return sorting device for a library according to claim 2, characterized in that: A lifting opening (107) is provided at a position inside the recovery box (101) corresponding to the bottom of the positioning plate (103), and the conveying cavity (106) and the lifting opening (107) are connected via a limiting opening (107a) provided at the bottom of the recovery box (101).

4. The intelligent book return sorting device for a library according to claim 3, characterized in that: A support bar (103b) connected to the bottom of the U-shaped plate (401) is fixed to the upper end surface of the positioning plate (103); a limiting bar (103a) sliding in the internal position of the lifting opening (107) is fixed to the bottom of the positioning plate (103) passing through the limiting opening (107a); and a pushing spring (103c) is fixed to the bottom of each limiting bar (103a).

5. The intelligent book return sorting device for a library according to claim 1, characterized in that: The lead screw (402) is located between the two positioning plates (103), and each positioning plate (103) is located between the lead screw (402) and the alignment plate (301). A metal plate (302a) that slides inside the telescopic opening (301a) is fixed to the lower end surface of the triangular slide plate (302), and two symmetrically arranged L-shaped plates (302b) are fixed to the lower end surface of the metal plate (302a), and a return spring (302c) is fixed to the bottom of each of the L-shaped plates (302b).

6. The intelligent book return sorting device for a library according to claim 1, characterized in that: A plurality of strip grooves (204a) evenly distributed in an annular shape are formed on the circumference of each linkage rod (204); a plurality of rubber strips (203b) sliding inside the strip grooves (204a) are fixed to the inner side wall of the angle column (203); and a compression spring (206a) abutting against the inner bottom of the storage box (202) is fixed to the bottom of each placement plate (206).

7. The intelligent book return sorting device for a library according to claim 1, characterized in that: The upper end surface of the U-shaped plate (401) is provided with a groove (401a), a friction rotating belt (405) is arranged inside the groove (401a), and rotating rods (405a) rotatably connected to the inner wall of the U-shaped plate (401) are rotatably arranged at both ends inside the friction rotating belt (405).

8. The intelligent book return sorting device for a library according to claim 7, characterized in that: A connecting U frame (406a) is fixed to the upper end surface of the slip ring block (406), and an annular block (401b) rotatably connected to the connecting U frame (406a) is fixed to the middle position of the lower end surface of the U-shaped plate (401).

9. The intelligent book return sorting device for a library according to claim 1, characterized in that: The side walls of the recovery box (101) are provided with drop openings (105) at the upper part of each storage cavity (205), and the drop openings (105) are connected to the interior of the conveying cavity (106). Inclined plates (105a) are fixed to the side walls of the recovery box (101) at the bottom of the drop openings (105), and the highest end of the inclined plates (105a) is lower than the lowest end position of the rotation angle of the U-shaped plate (401).

10. The intelligent book return sorting device for a library according to claim 1, characterized in that: A belt column (403a) is fixed between the lead screw (402) and the motor (403), a rotating column (204b) is fixed to the ends of the linkage rod (204) and the motor (403) on the same side, and the belt column (403a) and the rotating column (204b) are connected in transmission via a belt strip (404).

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