A four-claw automatic book retrieval device for libraries

Abstract

This invention relates to the field of automated book retrieval technology in libraries, and discloses a four-claw automated book retrieval device for libraries, including a separation component. Specifically, this invention uses a limiting plate. A dual-axis motor drives two threaded rods to rotate. The threaded rods, through a connecting plate, cause the two limiting plates to move closer or further apart. The limiting plates then cause the separation plates to move closer or further apart, aligning the right side of the separation plate with the gaps between the sides of the book to be retrieved and other books. Subsequently, the motor drives another threaded rod to rotate. This threaded rod, through a moving plate, moves the separation plates to the right, allowing the two separation plates to extend into the gaps on both sides of the book to be retrieved. During this movement, because the limiting plate is curved, and the separation plates slide along the limiting plate as they move to the right, the two separation plates move a certain distance away from each other, thus separating the books on both sides of the book to be retrieved.

Description

Technical Field

[0001] This invention relates to the field of automated book retrieval equipment for libraries, specifically a four-claw automated book retrieval device for libraries. Background Art

[0002] Human-managed libraries are large in scale, necessitating the research of intelligent library management robots specifically designed for libraries and serving readers. Currently, the use of robots for management is constantly developing and improving, and its convenience is unmatched by human management. Users can remotely access the digitally operated library through a screen, while further reducing the space required for book storage and leaving more space for readers to study, thus providing greater convenience for readers' reading activities.

[0003] Because library books are arranged very closely together, when using robots or other book-retrieval devices to automatically retrieve books, books on both sides may be pulled out along with them. Furthermore, when the grippers reach between the books, they may scratch the books, thereby damaging them and causing losses. To address these issues, the following solutions are proposed. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a four-claw automatic book retrieval device for libraries, including a separation component. The separation component includes a housing, a dual-axis motor disposed on the left side of the housing, and two separation plates slidably connected to the inner wall of the housing. The device also includes:

[0005] The following assembly includes a roller rotatably connected to the inner wall of the separating plate, a fixing sleeve fixedly connected to each of the two separating plates on the side away from each other, and a spring fixedly connected to each of the two separating plates on the side away from each other.

[0006] The clamping assembly includes a clamping plate disposed inside the separation plate, an elastic pad slidably connected to the inner wall of the clamping plate, and a spring two fixedly connected to the left side of the elastic pad;

[0007] The book return assembly includes a pressure plate that is slidably connected to the inner wall of the outer casing. A fixing sleeve three is slidably connected to the outer surface of the pressure plate, and a spring five is fixedly connected to the left side of the pressure plate.

[0008] Preferably, a threaded rod is fixedly connected to both the front and back output ends of the dual-axis motor. A connecting plate is threadedly connected to the outer surface of the threaded rod. A limit plate is fixedly connected to the right side of the connecting plate. The outer surface of the limit plate is slidably connected to the inner wall of the outer shell. A support shell is fixedly connected to the left side of the outer shell. The left and right sides of the dual-axis motor are fixedly connected to the inner wall of the support shell. A motor is fixedly connected to the inner wall of the support shell. By setting the limit plate, its bent part can move the separation plate to both sides, thereby pushing adjacent books to both sides.

[0009] Preferably, the outer surface of threaded rod one is rotatably connected to the inner wall of the support shell, and threaded rod two is fixedly connected to the motor output end. The outer surface of threaded rod two is rotatably connected to the inner wall of the shell, and a movable plate is threadedly connected to the outer surface of threaded rod two. A limit rod one is slidably connected to the inner wall of the movable plate. The left and right sides of the limit rod one are fixedly connected to the left and right sides of the inner wall of the shell, respectively. The inner wall of the movable plate is slidably connected to the outer surface of the separation plate, and the outer surface of the separation plate is slidably connected to the inner wall of the limit plate. By setting the limit rod one, the movable plate is limited.

[0010] Preferably, a second fixed sleeve is slidably connected to the inner wall of the first fixed sleeve. A second connecting plate is fixedly connected to the second fixed sleeve on the side away from the roller. A first spring is fixedly connected to the second connecting plate on the side away from the roller and the side close to the second fixed sleeve. A sliding block is fixedly connected to the second connecting plate on the side close to the roller. A second limit rod is slidably connected to the inner wall of the sliding block. By setting the first spring, the second connecting plate can be reset after the book is returned.

[0011] Preferably, the inner wall of the sliding block is slidably connected to the outer surface of the clamping plate, the left side of the second spring is fixedly connected to the inner wall of the clamping plate, there are two clamping plates, and each clamping plate is fixedly connected to a fixing rod on the side that is close to each other. The outer surface of the fixing rod is slidably connected to the inner wall of the sliding block, and the inner wall of the sliding block is provided with an air guide cavity. By setting the second spring, the elastic pad can be reset.

[0012] Preferably, a tension rod is slidably connected to the inner wall of the sliding block, and a spring three is fixedly connected to the left side of the tension rod. The left side of the spring three is fixedly connected to the inner wall of the sliding block, and a traction rope one is fixedly connected to the left side of the tension rod. A fixing plate is fixedly connected to the end of the traction rope one away from the tension rod. By setting the spring three, a force can be applied to the tension rod to return to its original position.

[0013] Preferably, a protruding rod is slidably connected to the inner wall of the clamping plate. A compression plate is fixedly connected to the protruding rod on the side away from the first traction rope. The outer surface of the compression plate is slidably connected to the inner wall of the clamping plate. A hose is fixedly connected to the top of the clamping plate. The end of the hose away from the clamping plate is fixedly connected to the top of the sliding block. An air guide chamber is opened inside the sliding block. A locking plate is slidably connected to the inner wall of the sliding block. A spring four is fixedly connected to the end of the locking plate away from the first traction rope. The end of the spring four away from the locking plate is fixedly connected to the inner wall of the sliding block. By setting the spring four, a force can be applied to the locking plate to reset after the clamping stops.

[0014] Preferably, the right side of spring five is fixedly connected to the right side of the inner wall of the outer casing, and the left side of spring five is fixedly connected to the left side of the inner wall of the fixed sleeve three. A traction rope two is fixedly connected to the bottom of the pressure plate. The outer surface of the traction rope two is slidably connected to the inner wall of the limiting plate and the inner wall of the outer casing. A sliding limiting block is fixedly connected to the end of the traction rope two away from the pressure plate. The outer surface of the sliding limiting block is slidably connected to the inner wall of the outer casing. The side of the sliding limiting block away from the traction rope two is fixedly connected to the side of the fixed plate close to the traction rope two. A connecting rod is slidably connected to the inner wall of the sliding limiting block. The top of the connecting rod is fixedly connected to the bottom of the connecting plate two. By setting the sliding limiting block, the connecting rod can be moved together without hindering its left and right sliding.

[0015] The present invention has the following beneficial effects:

[0016] 1. This invention, by setting a limiting plate, utilizes its curved portion to move the separating plate to both sides, thereby pushing adjacent books to both sides. Specifically, a dual-axis motor is started to drive two threaded rods to rotate. The threaded rods, through a connecting plate, move the two limiting plates closer together or further apart. The limiting plates, in turn, move the separating plates closer together or further apart, thus aligning the right side of the separating plate with the gap between the sides of the book to be removed and other books. Subsequently, the motor is started to drive a second threaded rod to rotate. The second threaded rod, through a moving plate, moves the separating plate to the right, thereby allowing the two separating plates to extend into the gap between the books to be removed and other books. When the book is removed from the gaps on both sides, the separating plate moves along the limit plate due to its curved design. As the separating plate moves to the right, it slides along the limit plate, causing the two separating plates to move a certain distance away from each other. This pushes the books on both sides of the book to be removed apart, creating a gap between the books on both sides and the book to be removed. This prevents the clamp from pulling the books out together due to friction when the book is removed later. It also avoids scratching or damaging the books when the clamp is inserted into the sides of the book, which would otherwise result in loss.

[0017] 2. When adjusting the position of the two separating plates to align them with the sides of the book to be retrieved, the separating plates will move together with the connecting plate via the fixing sleeve 2 or the spring 1. This, in turn, will move the clamping plate together via the sliding block. When the separating plates separate to the sides, they will also move the clamping plate together. When the separating plates move to the right, they will also move the clamping plate together. This ensures that the clamping plate remains inside the separating plates before clamping. This design can prevent the clamping plate from conflicting with adjacent books during the book retrieval process, thereby improving the stability and success rate of book retrieval. Furthermore, by setting rollers, it can prevent the separating plates from pulling the books out of the sides through friction during the book retrieval process.

[0018] 3. In this invention, as the clamping plates move to the right along with the separating plates, after the sliding block moves a certain distance to the right, the two traction ropes will be tightened. As the sliding block continues to move to the right, the two traction ropes will pull the two tension rods to the left. When the two tension rods move to the left, they will draw air from the two air chambers into the two sliding blocks, thereby pulling the two fixed rods closer to the tension rods. The two tension rods will cause the two clamping plates to move closer together, thus clamping the book. During clamping, the protruding rods are squeezed by the book, causing the compression plate to squeeze the air inside the clamping plates. When the elastic pad contacts the book, since the book is not yet clamped, the clamping plates will still move to the right. To prevent the elastic pad from damaging the book cover due to friction, the elastic pad will compress to the left due to the friction between it and the book. Spring 2, designed to prevent damage to books without hindering the rightward movement of the clamping plate, continues to move to the right after the clamping plate contacts the elastic pad, compressing the elastic pad and the protruding rod. When the clamping plate reaches its final position, the compression plate also moves to its final position. During its movement, the compression plate forces air from inside the clamping plate into the hose, which in turn pushes the air into the air guide chamber 2. The air in the air guide chamber 2 pushes the locking plate towards the traction rope 1, ultimately clamping and locking the traction rope 1 to prevent its movement. At this point, the clamping is complete. Subsequently, the motor reverses the threaded rod 2, removing the clamped book from the bookshelf. This design allows for a tight clamping of the book while the clamping plate moves to the right, without hindering its movement. This ensures the book remains stable during retrieval, reducing the possibility of the book sliding or shifting.

[0019] 4. When returning a book, this invention moves the device to a suitable position, starts the motor to move the book being held to the right, and after moving a certain distance, simultaneously controls the robot or trolley to move the entire device to the right, causing the bookshelf to press the pressure plate to the left. The pressure plate moving to the left will move the sliding limit block away from the sliding block via the second traction rope. The sliding limit block will move the connecting rod together, and the connecting rod will move the sliding block via the second connecting plate. Finally, the sliding block will move the clamping plate away from the book being held, thereby releasing the grip on the book and allowing it to be placed back on the bookshelf. This design allows the device to both retrieve and return books, improving convenience, reducing labor costs, and reducing the possibility of accidental book returns due to human operation, thus improving the accuracy and reliability of book returns. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the outer shell of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall structure of the separation plate of the present invention;

[0024] Figure 4 This is a schematic diagram of the overall structure of the sliding block of the present invention;

[0025] Figure 5 For the present invention Figure 4 A magnified structural diagram of A in the middle;

[0026] Figure 6 This is a schematic diagram of the overall structure of the clamping plate of the present invention;

[0027] Figure 7 This is a schematic diagram of the overall structure of the locking plate of the present invention;

[0028] Figure 8 This is a schematic diagram of the overall structure of the pressure plate of the present invention.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] In the diagram: 1. Separation assembly; 101. Housing; 102. Dual-axis motor; 103. Threaded rod one; 104. Connecting plate one; 105. Limiting plate; 106. Support shell; 107. Motor; 108. Threaded rod two; 109. Moving plate; 110. Limiting rod one; 111. Separation plate; 2. Following assembly; 201. Roller; 202. Fixing sleeve one; 203. Spring one; 204. Fixing sleeve two; 205. Connecting plate two; 206. Sliding block; 207. Limiting rod two; 3. Clamping assembly; 30 1. Clamping plate; 302. Elastic pad; 303. Spring 2; 304. Fixing rod; 305. Air guide chamber 1; 306. Tensioning rod; 307. Spring 3; 308. Traction rope 1; 309. Fixing plate; 310. Protruding rod; 311. Squeezing plate; 312. Hoses; 313. Air guide chamber 2; 314. Spring 4; 315. Locking plate; 4. Book return assembly; 401. Pressure plate; 402. Fixing sleeve 3; 403. Spring 5; 404. Traction rope 2; 405. Sliding limit block; 406. Connecting rod. Detailed Implementation

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0032] Example 1, please refer to Figure 1 - Figure 3 This invention relates to a four-claw automatic book retrieval device for libraries, comprising a separation component 1. The separation component 1 includes a housing 101, a dual-axis motor 102 disposed on the left side of the housing 101, and two separation plates 111 slidably connected to the inner wall of the housing 101. The device also includes:

[0033] Follower component 2 includes a roller 201 rotatably connected to the inner wall of the separation plate 111, a fixing sleeve 202 fixedly connected to each of the two separation plates 111 on the side away from each other, and a spring 203 fixedly connected to each of the two separation plates 111 on the side away from each other.

[0034] The clamping assembly 3 includes a clamping plate 301 disposed inside the separation plate 111, an elastic pad 302 slidably connected to the inner wall of the clamping plate 301, and a spring 303 fixedly connected to the left side of the elastic pad 302.

[0035] The book return assembly 4 includes a pressure plate 401 that is slidably connected to the inner wall of the outer casing 101. A fixing sleeve 402 is slidably connected to the outer surface of the pressure plate 401, and a spring 403 is fixedly connected to the left side of the pressure plate 401.

[0036] The dual-axis motor 102 has a threaded rod 103 fixedly connected to both the front and rear output ends. A connecting plate 104 is threadedly connected to the outer surface of the threaded rod 103. A limit plate 105 is fixedly connected to the right side of the connecting plate 104. The outer surface of the limit plate 105 is slidably connected to the inner wall of the outer shell 101. A support shell 106 is fixedly connected to the left side of the outer shell 101. The dual-axis motor 102 is fixedly connected to the inner wall of the support shell 106 on both the left and right sides. A motor 107 is fixedly connected to the inner wall of the support shell 106.

[0037] The outer surface of threaded rod 103 is rotatably connected to the inner wall of support shell 106. A second threaded rod 108 is fixedly connected to the output end of motor 107. The outer surface of threaded rod 108 is rotatably connected to the inner wall of shell 101. A movable plate 109 is threadedly connected to the outer surface of threaded rod 108. A limit rod 110 is slidably connected to the inner wall of movable plate 109. The left and right sides of limit rod 110 are fixedly connected to the left and right sides of the inner wall of shell 101, respectively. The inner wall of movable plate 109 is slidably connected to the outer surface of separation plate 111. The outer surface of separation plate 111 is slidably connected to the inner wall of limit plate 105. This invention, by setting limit plate 105, utilizes its curved portion to move separation plate 111 to both sides, thereby pushing adjacent books to both sides. Specifically, starting dual-axis motor 102 drives two threaded rods 103 to rotate. Threaded rods 103, through connecting plate 104, drive two limit plates 105 to move closer or further apart. Limit plates 105, in turn, drive separation plates 111 to move closer or further apart. By moving the separation plate 111 closer to or further away from the book, the right side of the separation plate 111 is aligned with the gap between the two sides of the book to be removed and other books. Then, the motor 107 is started to drive the threaded rod 108 to rotate. The threaded rod 108 will drive the separation plate 111 to move to the right through the moving plate 109, so that the two separation plates 111 can be inserted into the gaps on both sides of the book to be removed. During the movement of the separation plate 111, due to the curved design of the limiting plate 105, and the fact that the separation plate 111 slides along the limiting plate 105 when moving to the right, the two separation plates 111 will move a certain distance away from each other, thereby pushing the books on both sides of the book to be removed apart. This design can keep the books on both sides a certain distance away from the book to be removed, preventing the clamp 301 from pulling the books on both sides out together due to friction when removing the book later. At the same time, it can also avoid scratching or damaging the books when the clamp 301 is inserted into the sides of the books, due to the overall thickness of the clamp 301, thus preventing loss.

[0038] Example 2, please refer to Figure 4 - Figure 8This invention relates to a four-claw automatic book retrieval device for libraries. Based on Example 1, a second fixed sleeve 204 is slidably connected to the inner wall of a first fixed sleeve 202. A second connecting plate 205 is fixedly connected to the second fixed sleeve 204 on the side away from the roller 201. A first spring 203 is fixedly connected to the side of the second connecting plate 205 near the second fixed sleeve 204 on the side away from the roller 201. A sliding block 206 is fixedly connected to the side of the second connecting plate 205 near the roller 201. A second limit rod 207 is slidably connected to the inner wall of the sliding block 206. When the position of the two separating plates 111 is adjusted to align with the sides of the book to be retrieved, the separating plates 111 will move through the second fixed sleeve 204 or the spring... Spring 203 drives connecting plate 205 to move together, which in turn drives clamping plate 301 to adjust through sliding block 206. When separating plate 111 separates to both sides, it also drives clamping plate 301 to move together. When separating plate 111 moves to the right, it also drives clamping plate 301 to move together. This ensures that clamping plate 301 is always kept inside separating plate 111 before clamping. This design can avoid clamping plate 301 from conflicting with adjacent books during the book retrieval process, thereby improving the stability and success rate of book retrieval. In addition, by setting roller 201, it can prevent separating plate 111 from pulling the books on both sides out by friction during the book retrieval process.

[0039] The inner wall of the sliding block 206 is slidably connected to the outer surface of the clamping plate 301. The left side of the second spring 303 is fixedly connected to the inner wall of the clamping plate 301. There are two clamping plates 301. Each clamping plate 301 is fixedly connected to a fixing rod 304 on the side that is close to each other. The outer surface of the fixing rod 304 is slidably connected to the inner wall of the sliding block 206. The inner wall of the sliding block 206 is provided with an air guide cavity 305.

[0040] A tension rod 306 is slidably connected to the inner wall of the sliding block 206. A spring 307 is fixedly connected to the left side of the tension rod 306. The left side of the spring 307 is fixedly connected to the inner wall of the sliding block 206. A traction rope 308 is fixedly connected to the left side of the tension rod 306. A fixing plate 309 is fixedly connected to the end of the traction rope 308 away from the tension rod 306.

[0041] A protruding rod 310 is slidably connected to the inner wall of the clamping plate 301. A compression plate 311 is fixedly connected to the protruding rod 310 on the side away from the first traction rope 308. The outer surface of the compression plate 311 is slidably connected to the inner wall of the clamping plate 301. A hose 312 is fixedly connected to the top of the clamping plate 301. The end of the hose 312 away from the clamping plate 301 is fixedly connected to the top of the sliding block 206. An air guide chamber 313 is opened inside the sliding block 206. A locking plate 315 is slidably connected to the inner wall of the sliding block 206. A spring 314 is fixedly connected to the end of the locking plate 315 away from the first traction rope 308. The end of the spring 314 away from the locking plate 315 is fixedly connected to the inner wall of the sliding block 206. This invention... As the clamping plate 301 moves to the right along with the separating plate 111, after the sliding block 206 moves a certain distance to the right, the two traction ropes 308 will be tightened. At this time, as the sliding block 206 continues to move to the right, the two traction ropes 308 will pull the two tension rods 306 to the left. When the two tension rods 306 move to the left, they will respectively draw air from the two air guide chambers 305 into the two sliding blocks 206, which will then pull the two fixed rods 304 towards the side closer to the tension rods 306. The two tension rods 306 will drive the two clamping plates 301 to move closer to each other, thus forming a clamping effect on the book. During the clamping process, the protruding rod 310 is squeezed by the book. The pressure causes the squeezing plate 311 to squeeze the air inside the clamping plate 301. When the elastic pad 302 contacts the book, since the book is not yet clamped, the clamping plate 301 will move to the right. To prevent the elastic pad 302 from damaging the book cover due to friction, the elastic pad 302 will compress the spring 303 to the left due to friction with the book. This prevents damage to the book without hindering the rightward movement of the clamping plate 301. After the clamping plate 301 contacts the elastic pad 302, it will continue to move to the right, squeezing the elastic pad 302 and continuing to squeeze the protruding rod 310. When the clamping plate 301 moves to its final position, the squeezing plate 311 also moves to its final position. During the movement, the air inside the clamping plate 301 is forced into the hose 312, and the air in the hose 312 is pushed into the second air guide chamber 313. The air in the second air guide chamber 313 pushes the locking plate 315 towards the first traction rope 308, and finally clamps and locks the first traction rope 308 to prevent it from moving. At this time, the clamping is completed. Then, the motor 107 reverses the threaded rod 108 to remove the clamped book from the bookshelf. This design can form a tight clamp on the book while the clamping plate 301 moves to the right without hindering the movement of the clamping plate 301. It can ensure that the book remains stable during the book removal process and reduce the possibility of the book sliding or shifting.

[0042] The right side of spring 5 403 is fixedly connected to the right side of the inner wall of outer shell 101, and the left side of spring 5 403 is fixedly connected to the left side of the inner wall of fixed sleeve 3 402. A traction rope 2 404 is fixedly connected to the bottom of pressure plate 401. The outer surface of traction rope 2 404 is slidably connected to the inner wall of limiting plate 105. A sliding limiting block 405 is fixedly connected to the end of traction rope 2 404 away from pressure plate 401. The outer surface of sliding limiting block 405 is slidably connected to the inner wall of outer shell 101. The side of sliding limiting block 405 away from traction rope 2 404 is fixedly connected to the side of fixed plate 309 near traction rope 2 404. A connecting rod 406 is slidably connected to the inner wall of sliding limiting block 405. The top of connecting rod 406 is fixedly connected to the bottom of connecting plate 2 205. When returning a book, the device is moved to a suitable position, and the motor is started. 107 moves the book being held to the right. After moving a certain distance, the robot or trolley moves the entire device to the right, causing the bookshelf to press the pressure plate 401 to the left. The movement of the pressure plate 401 to the left moves the sliding limit block 405 away from the sliding block 206 via the second traction rope 404. The sliding limit block 405 moves the connecting rod 406 along with it. The connecting rod 406 moves the sliding block 206 via the second connecting plate 205. Finally, the sliding block 206 moves the clamping plate 301 away from the book being held, thereby releasing the grip on the book and allowing it to be placed back on the bookshelf. This design allows the device to both retrieve and return books, improving convenience, reducing labor costs, and minimizing the possibility of accidental book returns due to human error, thus improving the accuracy and reliability of book returns.

[0043] A specific application of this embodiment is as follows: When using this device, it is first installed on a mobile device such as a robot or a car. When it is necessary to retrieve a book, the device is first moved to a suitable position, and then the dual-axis motor 102 is started to drive the two threaded rods 103 to rotate. The threaded rods 103 will drive the two limiting plates 105 to move closer or further apart through the connecting plate 104. The limiting plates 105 will drive the separating plates 111 to move closer or further apart, thereby aligning the right side of the separating plate 111 with the gap between the two sides of the book to be retrieved and other books. The starter motor 107 drives the threaded rod 108 to rotate. The threaded rod 108, through the moving plate 109, moves the separating plates 111 to the right, causing the two separating plates 111 to extend into the gaps on both sides of the book to be removed. During this movement, due to the curved design of the limiting plate 105, and because the separating plates 111 slide along the limiting plate 105 as they move to the right, the two separating plates 111 move a certain distance away from each other, thus separating the books on both sides of the book to be removed. This design allows the books on both sides to be separated. The books are spaced a certain distance from the books to be retrieved to prevent the clamp 301 from pulling the books out on both sides due to friction when retrieving them. This also prevents the clamp 301 from scratching or damaging the books when inserted into their sides due to its thickness. When the positions of the two separating plates 111 are adjusted to align with the sides of the books to be retrieved, the separating plates 111 will move along with the connecting plate 205 via the fixing sleeve 204 or the spring 203, which in turn will move the clamp 301 along with the sliding block 206. The adjustment is made so that when the separating plate 111 separates to both sides, it will also drive the clamping plate 301 to move together. When the separating plate 111 moves to the right, it will also drive the clamping plate 301 to move together, so that the clamping plate 301 is always kept inside the separating plate 111 before clamping. This design can avoid the clamping plate 301 from conflicting with adjacent books during the book retrieval process, thereby improving the stability and success rate of book retrieval. In addition, by setting the roller 201, it can prevent the separating plate 111 from pulling the books on both sides out by friction during the book retrieval process.As the clamping plate 301 moves to the right along with the separating plate 111, after the sliding block 206 moves a certain distance to the right, the two traction ropes 308 will be tightened. At this time, as the sliding block 206 continues to move to the right, the two traction ropes 308 will pull the two tension rods 306 to the left. When the two tension rods 306 move to the left, they will respectively draw air from the two air guide chambers 305 into the two sliding blocks 206, which will then pull the two fixed rods 304 towards the side closer to the tension rods 306. The two tension rods 306 will cause the two clamping plates 301 to move closer to each other, thus forming a clamping effect on the book. During the clamping process, the protruding rod 310 is squeezed by the book, which will cause the squeezing plate 311 to squeeze the inside of the clamping plate 301. When the elastic pad 302 comes into contact with the book, since the book is not yet clamped, the clamping plate 301 will move to the right. To prevent the elastic pad 302 from damaging the book cover due to friction, the elastic pad 302 will compress the spring 303 to the left due to the friction between it and the book. This prevents damage to the book without hindering the rightward movement of the clamping plate 301. After the clamping plate 301 contacts the elastic pad 302, it will continue to move to the right, squeezing the elastic pad 302 and the protruding rod 310. When the clamping plate 301 reaches its final position, the squeezing plate 311 also moves to its final position. During its movement, the squeezing plate 311 will force the air inside the clamping plate 301 into the hose 312, and the air in the hose 312 will be pushed into the air guide chamber. In section 213, the air in the air chamber 213 pushes the locking plate 315 towards the traction rope 308, ultimately clamping and locking the traction rope 308 to prevent its movement. This completes the clamping process. Then, the motor 107 reverses the threaded rod 108, removing the clamped book from the bookshelf. This design allows for a tight clamping of the book while the clamping plate 301 moves to the right, ensuring the book remains stable during retrieval and reducing the possibility of slippage or displacement. When returning the book, the device is moved to a suitable position, and the motor 107 is activated to move the clamped book to the right. After moving a certain distance, the robot or cart is simultaneously controlled to move the device... The entire unit moves to the right, causing the bookshelf to press the pressure plate 401 to the left. This leftward movement of the pressure plate 401, via the second traction rope 404, moves the sliding limit block 405 away from the sliding block 206. The sliding limit block 405 then moves the connecting rod 406, which in turn moves the sliding block 206 via the second connecting plate 205. Finally, the sliding block 206 moves the clamping plate 301 away from the book being held, thus releasing the grip on the book and allowing it to be placed back on the bookshelf. This design allows the device to both retrieve and return books, improving convenience, reducing labor costs, and minimizing the possibility of accidental book returns due to human error, thus improving the accuracy and reliability of book returns.

[0044] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A four-claw automatic book retrieval device for a library, comprising a separation component (1), the separation component (1) including a housing (101), a dual-axis motor (102) disposed on the left side of the housing (101), and two separation plates (111) slidably connected to the inner wall of the housing (101), characterized in that, Also includes: Follower assembly (2), the follower assembly (2) includes a roller (201) rotatably connected to the inner wall of the separation plate (111), a fixing sleeve (202) is fixedly connected to each of the two separation plates (111) on the side away from each other, and a spring (203) is fixedly connected to each of the two separation plates (111) on the side away from each other. The clamping assembly (3) includes a clamping plate (301) disposed inside the separation plate (111), an elastic pad (302) is slidably connected to the inner wall of the clamping plate (301), and a spring (303) is fixedly connected to the left side of the elastic pad (302). The book return assembly (4) includes a pressure plate (401) slidably connected to the inner wall of the outer shell (101), a fixed sleeve (402) slidably connected to the outer surface of the pressure plate (401), and a spring (403) fixedly connected to the left side of the pressure plate (401). The inner wall of the first fixed sleeve (202) is slidably connected to the second fixed sleeve (204). The second fixed sleeve (204) is fixedly connected to the second connecting plate (205) on the side away from the roller (201). The first spring (203) is fixedly connected to the side of the second connecting plate (205) near the second fixed sleeve (204) on the side away from the roller (201). The second connecting plate (205) is fixedly connected to the sliding block (206) on the side near the roller (201). The inner wall of the sliding block (206) is slidably connected to the second limit rod (207). The inner wall of the sliding block (206) is slidably connected to the outer surface of the clamping plate (301), the left side of the second spring (303) is fixedly connected to the inner wall of the clamping plate (301), there are two clamping plates (301), and each of the two clamping plates (301) is fixedly connected to a fixing rod (304) on the side that is close to each other. The outer surface of the fixing rod (304) is slidably connected to the inner wall of the sliding block (206), and the inner wall of the sliding block (206) is provided with an air guide cavity (305). A protruding rod (310) is slidably connected to the inner wall of the clamping plate (301). A pressing plate (311) is fixedly connected to the protruding rod (310) on the side away from the first traction rope (308). The outer surface of the pressing plate (311) is slidably connected to the inner wall of the clamping plate (301). A hose (312) is fixedly connected to the top of the clamping plate (301). The end of the hose (312) away from the clamping plate (301) is fixedly connected to the top of the sliding block (206). An air guide chamber (313) is opened inside the sliding block (206). A locking plate (315) is slidably connected to the inner wall of the sliding block (206). A spring (314) is fixedly connected to the end of the locking plate (315) away from the first traction rope (308). The end of the spring (314) away from the locking plate (315) is fixedly connected to the inner wall of the sliding block (206). The right side of the spring five (403) is fixedly connected to the right side of the inner wall of the outer shell (101), and the left side of the spring five (403) is fixedly connected to the left side of the inner wall of the fixed sleeve three (402). A traction rope two (404) is fixedly connected to the bottom of the pressure plate (401). The outer surface of the traction rope two (404) is slidably connected to the inner wall of the limiting plate (105). The outer surface of the traction rope two (404) is slidably connected to the inner wall of the outer shell (101). The traction rope two (404) is located away from the pressure plate (401). One end of 01) is fixedly connected to a sliding limit block (405). The outer surface of the sliding limit block (405) is slidably connected to the inner wall of the outer shell (101). The sliding limit block (405) is fixedly connected to the side of the fixing plate (309) close to the side of the traction rope (404) on the side away from the second traction rope (404). The inner wall of the sliding limit block (405) is slidably connected to a connecting rod (406). The top of the connecting rod (406) is fixedly connected to the bottom of the second connecting plate (205). The dual-axis motor (102) has a threaded rod (103) fixedly connected to both the front and back output ends. The outer surface of the threaded rod (103) is threadedly connected to a connecting plate (104). A limiting plate (105) is fixedly connected to the right side of the connecting plate (104). The outer surface of the limiting plate (105) is slidably connected to the inner wall of the outer shell (101). A support shell (106) is fixedly connected to the left side of the outer shell (101). The left and right sides of the dual-axis motor (102) are fixedly connected to the inner wall of the support shell (106). A motor (107) is fixedly connected to the inner wall of the support shell (106).

2. The four-claw automatic book-retrieval device for a library according to claim 1, characterized in that: The outer surface of the threaded rod (103) is rotatably connected to the inner wall of the support shell (106). The output end of the motor (107) is fixedly connected to the threaded rod (108). The outer surface of the threaded rod (108) is rotatably connected to the inner wall of the outer shell (101). The outer surface of the threaded rod (108) is threadedly connected to the moving plate (109). The inner wall of the moving plate (109) is slidably connected to the limiting rod (110). The left and right sides of the limiting rod (110) are fixedly connected to the left and right sides of the inner wall of the outer shell (101), respectively. The inner wall of the moving plate (109) is slidably connected to the outer surface of the separation plate (111). The outer surface of the separation plate (111) is slidably connected to the inner wall of the limiting plate (105).

3. A four-claw automatic book-retrieval device for a library according to claim 2, characterized in that: A tension rod (306) is slidably connected to the inner wall of the sliding block (206). A spring (307) is fixedly connected to the left side of the tension rod (306). The left side of the spring (307) is fixedly connected to the inner wall of the sliding block (206). A traction rope (308) is fixedly connected to the left side of the tension rod (306). A fixing plate (309) is fixedly connected to the end of the traction rope (308) away from the tension rod (306).

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