Rare book and reference material management device

Abstract

The invention belongs to the field of rare book and reference material management, and particularly relates to a rare book and reference material management device, which comprises a main body, an access device and a lifting device, the book taking device comprises a plurality of grooved wheel conveying devices, the grooved wheel conveying devices are located at the bottoms of the first fixing plates, a plurality of fixing devices with the same angle are arranged on the peripheries of the grooved wheel conveying devices, vacancies are reserved among the fixing devices, the vacancies are aligned with the round holes in the first fixing plates, and the first fixing plates are arranged on the periphery of the grooved wheel conveying devices. A book taking device is arranged on the fixing device; the grooved wheel conveying device, the book taking device and the fixing device are arranged in the storing and taking device, so that the grooved wheel conveying device can drive the fixing device to rotate, and then books are taken out through the book taking device.

Description

Technical Field

[0001] The invention belongs to the field of rare book and material management, in particular to a rare book and material management device. Background Art

[0002] Rare books and materials are valuable historical materials and documents collected and displayed in libraries. Due to their unique characteristics, they are usually stored and managed using special equipment.

[0003] The existing precious book material management device mainly has the following shortcomings:

[0004] 1. The degree of automation is low, and automatic book retrieval is impossible. The device for storing precious books is generally complex in structure, making it inconvenient to retrieve books.

[0005] 2. The protection level is low. If a fire occurs, the books inside the device will easily be burned. In addition, the air humidity is high, which can easily cause the books to become damp and moldy.

[0006] Therefore, we make improvements to this and propose a rare book and material management device. Summary of the Invention

[0007] To address the shortcomings of existing technologies, such as low automation and inability to automatically retrieve books, the devices used to store precious books are generally complex and inconvenient to retrieve. They also have low levels of protection, making it easy for books inside to be burned in the event of a fire. Furthermore, high humidity can easily cause books to become damp and moldy.

[0008] The technical solution adopted by the present invention to solve the technical problem is: to provide a rare book and material management device, including: a main body, a storage and access device and a lifting device;

[0009] The main body includes a book storage compartment, a lift compartment is provided on one side of the book storage compartment, the book storage compartment and the inner cavity of the lift compartment are communicated with each other, a plurality of first fixing plates are provided at equal intervals inside the book storage compartment, a door plate is hingedly provided on the side of the book storage compartment away from the lift compartment, a book access opening is provided on one side of the lift compartment, a circular hole is provided on one side of the top of the first fixing plate, and the bottom of the book storage compartment is an inclined surface;

[0010] The book-taking device includes a plurality of grooved wheel conveying devices, wherein the plurality of grooved wheel conveying devices are located at the bottom of the plurality of first fixed plates. The grooved wheel conveying devices are surrounded by a plurality of fixing devices at equal angles, and a space is left between the plurality of fixing devices. The space is aligned with the circular hole on the first fixed plate, and the fixing device is provided with a book-taking device;

[0011] The lifting device includes a conveying plate, which is located inside the lifting cabin. A screw rod is provided for rotation inside the lifting cabin. A nut is provided on the conveying plate. The screw rod is threadedly connected to the nut. A second stepper motor is provided for transmission at the top of the screw rod.

[0012] During operation, staff will deposit books into the access mechanism. When a user needs to retrieve a book, the corresponding sheave conveyor is activated based on the shelf the book is on. This activates the sheave conveyor, driving the access mechanism to rotate. With each rotation of the sheave conveyor, each access mechanism rotates a certain angle, shifting the current access mechanism to the position of the previous one, aligning the access mechanism with the circular hole in the first fixed plate. The access mechanism then opens its internal opening and closing plate, allowing the book to fall into the circular hole in the first fixed plate. The book then descends through the circular holes in the first fixed plate on each shelf to the bottom of the book compartment. Due to the inclined bottom surface of the book compartment, the book slides down the slope onto the conveyor plate. The second stepper motor is then activated, driving the nut, which in turn moves the nut, which in turn moves the conveyor plate, which transports the book to the access opening. The user can then remove the book through the access opening.

[0013] Preferably, the groove wheel conveying device includes a groove wheel, a plurality of first arc-shaped grooves are provided around the groove wheel, and a limiting groove is provided between the first arc-shaped grooves. A cam is provided on one side of the groove wheel, a first connecting rod is fixedly provided on one side of the cam, a limiting rod is fixedly provided on the bottom of the end of the first connecting rod away from the cam, and a second arc-shaped groove is provided on the side of the cam close to the first connecting rod. A first stepper motor is provided on the top of the first fixed plate, and the fixed end of the first stepper motor is fixedly connected to the first fixed plate. The output shaft of the first stepper motor passes through the first fixed plate and is transmission-connected to the cam.

[0014] During operation, the output shaft of the first stepper motor passes through the first fixed plate and is transmission-connected to the cam, so that the rotation of the first stepper motor can drive the cam to rotate.

[0015] The lockhole that is formed on the upper part of the second rim is formed on the upper part of the second rim, and the lockhole that is formed on the lower part of the second rim is formed on the upper part of the second rim.

[0016] During operation, the second connecting rod, the end of the second opening and closing plate, and the end of the third connecting rod, the end of the first opening and closing plate, are hinged to the bottom of the book storage bin via a pin, allowing the second connecting rod, the third connecting rod, the first opening and closing plate, and the second opening and closing plate to rotate at the bottom of the book storage bin. A tension spring is provided to keep the first and second opening and closing plates closed.

[0017] Preferably, the fixing device includes a fixing frame, several of which are located at the bottom of the sheave, the fixing frames are fixedly connected to the sheave, and the ends of the fixing frames away from the sheave are hingedly provided with a first arc rod and a second arc rod, respectively, the end of the first arc rod away from the fixing frame is fixedly provided with a first protrusion, and one side of the first protrusion is fixedly provided with a first wedge block.

[0018] During operation, a first arc rod and a second arc rod are respectively hingedly provided on one end of the fixing frame away from the sheave, so that the first arc rod and the second arc rod can swing on the fixing frame.

[0019] Preferably, a lock cavity is provided at the end of the second arc rod away from the fixing frame, a second protrusion is provided at the bottom of the lock cavity, the end of the second protrusion away from the first arc rod is hinged to the lock cavity, a second wedge block is fixedly provided on the side of the second protrusion close to the first protrusion, the first wedge block is located on the side of the first protrusion close to the second protrusion, a spring is provided on the side of the second protrusion away from the second wedge block, and a wrench is fixedly provided on the end of the second protrusion away from the second wedge block through the top inner wall of the lock cavity via a fixing column.

[0020] During operation, the second projection is hinged to the lock cavity through one end of the second projection away from the first arc-shaped rod, so that the second projection can swing inside the lock cavity. The spring is provided so that the elastic force of the spring causes the second projection to be tightly attached to the first projection.

[0021] Preferably, a handle is fixedly provided on the side of the door panel away from the hinge, a control panel is fixedly provided on the outer surface of the elevator cabin, slide rails are provided on both sides of the conveying plate, the slide rails are fixedly connected to the inner wall of the elevator cabin, sliders are fixedly provided on both sides of the conveying plate, the sliders are slidably connected to the slide rails, the fixed end of the second stepper motor is fixedly connected to the top of the inner cavity of the elevator cabin, and the output shaft of the second stepper motor is connected to the screw transmission.

[0022] During operation, the slider is slidably connected to the slide rail so that the slider can slide on the slide rail. The output shaft of the second stepper motor is transmission-connected to the screw rod so that the rotation of the second stepper motor can drive the screw rod to rotate.

[0023] The specific beneficial effects are as follows:

[0024] 1. The rare book and information management device described in the present invention has a book storage compartment, a lifting compartment, a first fixing plate, a door panel, and a book access opening arranged inside the main body, so that a user can store books in the book storage compartment and then retrieve them through the book access opening.

[0025] 2. The rare book and information management device described in the present invention is configured with a grooved wheel conveying device, a book retrieval device and a fixing device inside the storage and retrieval device, so that the grooved wheel conveying device can drive the fixing device to rotate, and then the book is taken out through the book retrieval device.

[0026] 3. The rare book and information management device described in the present invention is configured with a screw rod, a nut, a conveying plate and a second stepper motor inside a lifting device, so that when the conveying plate needs to be lifted or lowered, the second stepper motor is started, and the second stepper motor drives the conveying plate to be lifted or lowered through the screw rod and the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Figure 1 is a three-dimensional cutaway view of the present invention;

[0029] Figure 2 is a perspective view of the present invention;

[0030] Figure 3 It is a partial three-dimensional exploded view of the present invention;

[0031] Figure 4 It is a partial perspective view of the present invention;

[0032] Figure 5 It is a partial perspective view of the present invention;

[0033] Figure 6 It is a partial perspective view of the present invention;

[0034] Figure 7 It is a partial perspective cutaway view of the present invention;

[0035] Figure 8 This invention Figure 7 Enlarged view in A.

[0036] In the figure: 10, main body; 20, storage and retrieval device; 30, lifting device; 1001, book storage compartment; 1002, door panel; 1003, first fixing plate; 1004, control panel; 1005, handle; 1006, lifting compartment; 1007, book access opening; 210, grooved wheel conveying device; 220, book access device; 230, fixing device; 2101, grooved wheel; 2102, cam; 2103, first connecting rod; 2104, limiting rod; 2105, first stepper motor; 2106, first arc-shaped groove; 2107, limiting groove; 2108, second arc-shaped groove; 2201, book storage bin; 2202, first opening and closing plate; 2203, second opening and closing plate; 2204, second connecting rod; 2205, third connecting rod; 2206, tension spring; 2207, electric telescopic rod; 2208, boss; 2209, limit ring; 2301, fixing frame; 2302, first arc rod; 2303, second arc rod; 2304, first protrusion; 2305, first wedge block; 2306, second protrusion; 2307, wrench; 2308, second wedge block; 2309, spring; 2310, lock chamber; 3001, conveying plate; 3002, lead screw; 3003, slide rail; 3004, nut; 3005, slider; 3006, second stepping motor. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0038] like Figures 1 to 8 As shown, the present invention provides a rare book and material management device, comprising: a main body 10, an access device 20 and a lifting device 30;

[0039] The main body 10 includes a book storage compartment 1001. A lift compartment 1006 is provided on one side of the book storage compartment 1001. The book storage compartment 1001 and the inner cavity of the lift compartment 1006 are interconnected. A plurality of first fixing plates 1003 are equidistantly provided inside the book storage compartment 1001. A door panel 1002 is hingedly provided on the side of the book storage compartment 1001 away from the lift compartment 1006. A book access opening 1007 is provided on one side of the lift compartment 1006. A circular hole is provided on one side of the top of the first fixing plate 1003. The bottom of the book storage compartment 1001 is an inclined surface.

[0040] The book retrieval device 220 includes a plurality of grooved wheel conveying devices 210, which are located at the bottom of a plurality of first fixed plates 1003. A plurality of fixing devices 230 are provided around the grooved wheel conveying devices 210 at equal angles. An empty space is left between the fixing devices 230, which is aligned with the circular hole on the first fixed plate 1003. The book retrieval device 220 is provided on the fixing device 230.

[0041] The lifting device 30 includes a conveying plate 3001, which is located inside the lifting cabin 1006. A screw rod 3002 is provided for rotation inside the lifting cabin 1006. A nut 3004 is provided on the conveying plate 3001. The screw rod 3002 is threadedly connected to the nut 3004. A second stepper motor 3006 is provided for the top transmission of the screw rod 3002.

[0042] During operation, staff will place books in the book-retrieval device 220. When a user needs to retrieve a book, the corresponding sheave conveyor 210 is activated according to the shelf on which the book is located. The sheave conveyor 210 then drives the book-retrieval device 220 to rotate. Each time the sheave conveyor 210 rotates, each book-retrieval device 220 rotates a certain angle, causing the current book-retrieval device 220 to switch to the position of the previous book-retrieval device 220, so that the book-retrieval device 220 that needs to access the book is aligned with the circular hole on the first fixed plate 1003. The internal opening and closing plate of the book-retrieval device 220 is then opened, allowing the book to fall into the circular hole in the first fixed plate 1003. The book then falls down through the circular hole in the first fixed plate 1003 on each shelf to the bottom of the book storage compartment 1001. Since the bottom surface of the book storage compartment 1001 is inclined, the book slides along the inclined surface of the bottom of the book storage compartment 1001 onto the conveyor plate 3001. Then, the second stepper motor 3006 is started, which drives the nut 3004 to rotate. The screw rod 3002 rotates to drive the nut 3004 to move. The movement of the nut 3004 drives the conveying plate 3001 to move, so that the conveying plate 3001 drives the book to the book access port 1007. The user can then take the book out through the book access port 1007.

[0043] Preferably, the groove wheel conveying device 210 includes a groove wheel 2101, which is provided with several first arc-shaped grooves 2106 penetrating therearound, and limiting grooves 2107 are provided between the several first arc-shaped grooves 2106. A cam 2102 is provided on one side of the groove wheel 2101, and a first connecting rod 2103 is fixedly provided on one side of the cam 2102. A limiting rod 2104 is fixedly provided on the bottom of the end of the first connecting rod 2103 away from the cam 2102, and a second arc-shaped groove 2108 is provided on the side of the cam 2102 close to the first connecting rod 2103. A first stepper motor 2105 is provided on the top of the first fixed plate 1003, and the fixed end of the first stepper motor 2105 is fixedly connected to the first fixed plate 1003. The output shaft of the first stepper motor 2105 passes through the first fixed plate 1003 and is transmission-connected to the cam 2102.

[0044] During operation, the output shaft of the first stepper motor 2105 passes through the first fixed plate 1003 and is in transmission connection with the cam 2102 , so that the rotation of the first stepper motor 2105 can drive the cam 2102 to rotate.

[0045] Preferably, the book-taking device 220 includes a book barrel 2201, which is a column with an opening downward. The bottom of the book barrel 2201 is respectively provided with a first opening and closing plate 2202 and a second opening and closing plate 2203. One end of the second opening and closing plate 2203 is fixed with a second connecting rod 2204, and one end of the first opening and closing plate 2202 is fixed with a third connecting rod 2205. There is a certain angle between the second connecting rod 2204 and the third connecting rod 2205. The end of the second connecting rod 2204 close to the second opening and closing plate 2203 and the end of the third connecting rod 2205 close to the first opening and closing plate 2202 are hinged to the bottom of the book barrel 2201 through a pin. 2 and the second opening and closing plate 2203 are provided with a tension spring 2206 at one end away from the second connecting rod 2204 and the third connecting rod 2205. The two ends of the tension spring 2206 are respectively fixedly connected to the first opening and closing plate 2202 and the second opening and closing plate 2203 through fixed columns. The second connecting rod 2204 and the third connecting rod 2205 are provided with a boss 2208 on the side away from the first opening and closing plate 2202 and the second opening and closing plate 2203. An electric telescopic rod 2207 is fixed to the top of the first fixed plate 1003 through a fixed platform. A boss 2208 is provided on the side of the electric telescopic rod 2207 away from the inner wall of the book storage compartment 1001. A limiting ring 2209 is fixed to the book storage barrel 2201.

[0046] During operation, the end of the second connecting rod 2204 near the second opening and closing plate 2203 and the end of the third connecting rod 2205 near the first opening and closing plate 2202 are hinged to the bottom of the book storage bin 2201 via a pin, allowing the second connecting rod 2204, the third connecting rod 2205, the first opening and closing plate 2202, and the second opening and closing plate 2203 to rotate at the bottom of the book storage bin 2201. The first opening and closing plate 2202 and the second opening and closing plate 2203 are kept closed by the provision of a tension spring 2206.

[0047] Preferably, the fixing device 230 includes a fixing frame 2301, and several fixing frames 2301 are located at the bottom of the groove wheel 2101. The fixing frames 2301 are fixedly connected to the groove wheel 2101. The end of the fixing frame 2301 away from the groove wheel 2101 is hingedly provided with a first arc rod 2302 and a second arc rod 2303. The end of the first arc rod 2302 away from the fixing frame 2301 is fixedly provided with a first protrusion 2304, and a first wedge block 2305 is fixedly provided on one side of the first protrusion 2304.

[0048] During operation, a first arc rod 2302 and a second arc rod 2303 are hingedly connected to one end of the fixing frame 2301 away from the sheave 2101 , so that the first arc rod 2302 and the second arc rod 2303 can swing on the fixing frame 2301 .

[0049] Preferably, a lock cavity 2310 is provided at the end of the second arc rod 2303 away from the fixed frame 2301, and a second protrusion 2306 is provided at the bottom of the lock cavity 2310. The end of the second protrusion 2306 away from the first arc rod 2302 is hinged to the lock cavity 2310, and a second wedge block 2308 is fixedly provided on the side of the second protrusion 2306 close to the first protrusion 2304. The first wedge block 2305 is located on the side of the first protrusion 2304 close to the second protrusion 2306, and a spring 2309 is provided on the side of the second protrusion 2306 away from the second wedge block 2308. The end of the second protrusion 2306 away from the second wedge block 2308 is fixed with a wrench 2307 through a fixing column passing through the top inner wall of the lock cavity 2310.

[0050] During operation, the second protrusion 2306 is hinged to the lock cavity 2310 at one end away from the first arc-shaped rod 2302, so that the second protrusion 2306 can swing inside the lock cavity 2310. The spring 2309 is provided so that the elastic force of the spring 2309 makes the second protrusion 2306 and the first protrusion 2304 close together.

[0051] Preferably, a handle 1005 is fixedly provided on the side of the door panel 1002 away from the hinge, a control panel 1004 is fixedly provided on the outer surface of the elevator cabin 1006, slide rails 3003 are provided on both sides of the conveying plate 3001, the slide rails 3003 are fixedly connected to the inner wall of the elevator cabin 1006, sliders 3005 are fixedly provided on both sides of the conveying plate 3001, the sliders 3005 are slidingly connected to the slide rails 3003, the fixed end of the second stepper motor 3006 is fixedly connected to the top of the inner cavity of the elevator cabin 1006, and the output shaft of the second stepper motor 3006 is transmission-connected to the screw rod 3002.

[0052] During operation, the slider 3005 is slidably connected to the slide rail 3003 so that the slider 3005 can slide on the slide rail 3003. The output shaft of the second stepping motor 3006 is transmission-connected to the screw rod 3002 so that the rotation of the second stepping motor 3006 can drive the screw rod 3002 to rotate.

[0053] The specific workflow is as follows:

[0054] The staff will store the rare books in the book barrel 2201 so that the books are sealed and will not be exposed to a humid environment. The book barrel 2201 can also isolate fire sources to prevent the rare books inside from being burned in the event of a fire. Then, books are entered into the system through the control panel 1004. When a user needs to take a book, the first stepper motor 2105 of the corresponding layer is started according to the layer where the book to be taken is located. The first stepper motor 2105 rotates to drive the cam 2102 to rotate. The rotation of the cam 2102 drives the first connecting rod 2103 and the limiting rod 2104 to rotate. The limiting rod 2104 rotates and slides into the limiting slot 2107, and then drives the groove wheel 2101 to rotate. The rotation of the groove wheel 2101 drives the fixing frame 2301 to rotate. The rotation of the fixing frame 2301 drives the first curved rod 2302 and the second curved rod 2303 to rotate. The first curved rod 2302 and the second curved rod 2303 drive the book storage bucket 2201 to rotate. Every time the groove wheel conveying device 210 rotates one circle, the current book storage bucket 2201 rotates to the position of the previous book storage bucket 2201, so that the book storage bucket 2201 that needs to access the book is aligned with the circular hole on the first fixing plate 1003. Then, the internal opening and closing plate is opened by the book-taking device 220 to allow the book to fall into the circular hole of the first fixed plate 1003, and then the electric telescopic rod 2207 is started. The electric telescopic rod 2207 pushes the boss 2208 to move, and the movement of the boss 2208 drives the second connecting rod 2204 and the third connecting rod 2205 to swing. The swing of the second connecting rod 2204 and the third connecting rod 2205 drives the first opening and closing plate 2202 and the second opening and closing plate 2203 to swing, thereby causing the first opening and closing plate 2202 and the second opening and closing plate 2203 to open, allowing the book to fall from the circular hole on the first fixed plate 1003, and then fall down along the circular hole of the first fixed plate 1003 of each layer to the bottom of the book storage compartment 1001. Since the bottom surface of the book storage compartment 1001 is an inclined surface, the book will slide along the inclined surface of the bottom of the book storage compartment 1001 onto the conveying plate 3001. Then, the second stepper motor 3006 is started, which drives the nut 3004 to rotate. The screw rod 3002 rotates to drive the nut 3004 to move. The movement of the nut 3004 drives the conveying plate 3001 to move, so that the conveying plate 3001 drives the book to the book access port 1007. The user can then take the book out through the book access port 1007.

[0055] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0056] In the description of the present invention, it should be understood that the terms "middle", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0057] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A rare book and material management device, characterized in that: include: A main body (10), a storage and access device (20), and a lifting device (30); The main body (10) comprises a book storage cabin (1001), a lifting cabin (1006) is provided on one side of the book storage cabin (1001), the inner cavities of the book storage cabin (1001) and the lifting cabin (1006) are communicated with each other, a plurality of first fixing plates (1003) are equidistantly provided inside the book storage cabin (1001), a door plate (1002) is hingedly provided on the side of the book storage cabin (1001) away from the lifting cabin (1006), a through book taking port (1007) is provided on one side of the lifting cabin (1006), a through circular hole is provided on one side of the top of the first fixing plate (1003), and the bottom of the book storage cabin (1001) is an inclined surface; The storage and retrieval device (20) includes a plurality of grooved wheel conveying devices (210), wherein the plurality of grooved wheel conveying devices (210) are located at the bottom of a plurality of first fixed plates (1003), and a plurality of fixing devices (230) are provided around the grooved wheel conveying device (210) at equal angles, with an empty space left between the plurality of fixing devices (230), the empty space being aligned with the circular hole on the first fixed plate (1003), and a book retrieval device (220) is provided on the fixing device (230); The lifting device (30) comprises a conveying plate (3001), the conveying plate (3001) is located inside the lifting cabin (1006), a screw rod (3002) is provided inside the lifting cabin (1006) for rotation, a nut (3004) is provided on the conveying plate (3001), the screw rod (3002) is threadedly connected to the nut (3004), and a second stepping motor (3006) is provided at the top of the screw rod (3002).

2. A rare book and material management device according to claim 1, characterized in that: The sheave conveying device (210) comprises a sheave (2101), a plurality of first arcuate grooves (2106) passing through the periphery of the sheave (2101), a limiting groove (2107) being provided between the plurality of first arcuate grooves (2106), a cam (2102) being provided on one side of the sheave (2101), a first connecting rod (2103) being fixedly provided on one side of the cam (2102), and a bottom end of the first connecting rod (2103) being fixedly provided away from the cam (2102). A limiting rod (2104) is fixedly provided, a second arc groove (2108) is provided on the side of the cam (2102) close to the first connecting rod (2103), a first stepper motor (2105) is provided on the top of the first fixed plate (1003), the fixed end of the first stepper motor (2105) is fixedly connected to the first fixed plate (1003), and the output shaft of the first stepper motor (2105) passes through the first fixed plate (1003) and is transmission-connected to the cam (2102).

3. The rare book and material management device according to claim 2, characterized in that: The book-taking device (220) comprises a book storage barrel (2201), which is a column with an opening downward. A first opening and closing plate (2202) and a second opening and closing plate (2203) are respectively provided at the bottom of the book storage barrel (2201). A second connecting rod (2204) is fixedly provided at one end of the second opening and closing plate (2203). A third connecting rod (2205) is fixedly provided at one end of the first opening and closing plate (2202). There is a certain angle between the second connecting rod (2204) and the third connecting rod (2205). The end of the second connecting rod (2204) close to the second opening and closing plate (2203) is in contact with the third connecting rod (2205). One end of the connecting rod (2205) close to the first opening and closing plate (2202) is hinged to the bottom of the book storage barrel (2201) through a pin shaft, and one end of the first opening and closing plate (2202) and the second opening and closing plate (2203) away from the second connecting rod (2204) and the third connecting rod (2205) is provided with a tension spring (2206), and the top of the first fixed plate (1003) is fixed with an electric telescopic rod (2207) through a fixed platform, and a boss (2208) is provided on the side of the electric telescopic rod (2207) away from the inner wall of the book storage compartment (1001), and a limiting ring (2209) is fixed on the book storage barrel (2201).

4. A rare book and material management device according to claim 3, characterized in that: The fixing device (230) includes a fixing frame (2301), and a plurality of the fixing frames (2301) are located at the bottom of the sheave (2101). The fixing frames (2301) are fixedly connected to the sheave (2101). One end of the fixing frame (2301) away from the sheave (2101) is hingedly provided with a first arc rod (2302) and a second arc rod (2303). One end of the first arc rod (2302) away from the fixing frame (2301) is fixedly provided with a first protrusion (2304), and one side of the first protrusion (2304) is fixedly provided with a first wedge block (2305).

5. A rare book and material management device according to claim 4, characterized in that: A locking cavity (2310) is provided at one end of the second arc-shaped rod (2303) away from the fixing frame (2301), and a second protrusion (2306) is provided at the bottom of the locking cavity (2310). The end of the second protrusion (2306) away from the first arc-shaped rod (2302) is hinged to the locking cavity (2310), and a second wedge-shaped block (2308) is fixedly provided on the side of the second protrusion (2306) close to the first protrusion (2304). The first wedge-shaped block (2305) is located on the side of the first protrusion (2304) close to the second protrusion (2306), and a spring (2309) is provided on the side of the second protrusion (2306) away from the second wedge-shaped block (2308). The end of the second protrusion (2306) away from the second wedge-shaped block (2308) is fixedly provided with a wrench (2307) through a fixing column passing through the top inner wall of the locking cavity (2310).

6. The rare book and material management device according to claim 5, characterized in that: A handle (1005) is fixedly provided on the side of the door panel (1002) away from the hinge, a control panel (1004) is fixedly provided on the outer surface of the elevator cabin (1006), slide rails (3003) are provided on both sides of the conveying plate (3001), and the slide rails (3003) are fixedly connected to the inner wall of the elevator cabin (1006), sliders (3005) are fixedly provided on both sides of the conveying plate (3001), and the sliders (3005) are slidably connected to the slide rails (3003), the fixed end of the second stepper motor (3006) is fixedly connected to the top of the inner cavity of the elevator cabin (1006), and the output shaft of the second stepper motor (3006) is transmission-connected to the lead screw (3002).

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