CN211882799U - Library's intelligence still books device - Google Patents
Library's intelligence still books device Download PDFInfo
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- CN211882799U CN211882799U CN201922461438.0U CN201922461438U CN211882799U CN 211882799 U CN211882799 U CN 211882799U CN 201922461438 U CN201922461438 U CN 201922461438U CN 211882799 U CN211882799 U CN 211882799U
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Abstract
The utility model discloses an intelligent library book returning device, which comprises a frame body, a book box, an elevating mechanism, a book conveying mechanism for conveying books to the upper part of the elevating mechanism and a book pushing mechanism for conveying the books to a bookshelf, wherein the frame body is a frame structure which is formed by mutually enclosing a base, two side mounting plates and a fixing plate at one end; this device utilizes the original loaded down with trivial details manual work of intelligent technology replacement, uses this item of books of returning with accurate data processing function, makes the library can high-efficient accurate completion books get and put work, and the easy operation of technique realizes and the sexual valence relative altitude.
Description
Technical Field
The utility model relates to a getting of books puts technical field, concretely relates to library's intelligence still books device.
Background
The book richness of the library replaces the cultural degree and cultural connotation of a city, and along with the continuous development of modern science and technology, the intelligent application becomes a normal state. At present, China generates a plurality of intelligent libraries, but the intelligent libraries cannot be completely popularized to each library due to high cost, so that the traditional libraries occupy a large part of libraries;
at present, the most important problem of book placement exists in the traditional library, and the traditional manual placement needs book workers to find out the specified bookshelves one by one and place the bookshelves at the specified positions according to the number of layers and the corresponding sequence numbers of the books, so that the working process is easy to make mistakes, the working efficiency is too low, and certain pressure is exerted on the working personnel; therefore, it is also very important for the city to improve the overall efficiency of the library while ensuring cost performance.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a library's intelligence is still booked device utilizes the original loaded down with trivial details manual work of intelligent technical replacement, uses this item of books that return with accurate data processing function, makes library can high-efficient accurate completion books get and puts work, and the easy operation of technique realizes, and the sexual valence relative altitude.
The utility model discloses a following technical scheme realizes:
an intelligent book returning device for a library comprises a frame body, a book box, a lifting mechanism, a book conveying mechanism for pushing books above the lifting mechanism and a book pushing mechanism for pushing the books to a bookshelf;
the book conveying mechanism comprises a book pushing table which is vertically arranged at the bottom of the book box, and the book pushing table is axially and slidably arranged in the book box;
one end, opposite to the fixed plate, of the base is connected with a horizontally arranged rectangular sliding fixed table, the lifting mechanism is arranged above the sliding fixed table, a lifting table is transversely arranged at the top of the lifting mechanism and is arranged in parallel with the fixed plate, a screw II is fixedly arranged in a groove body in the lifting table, and a lifting table motor for controlling the screw II is arranged at one end of the lifting table;
the book pushing mechanism comprises a book pushing guide rail which is positioned above the lifting platform and connected with the screw rod II through a sliding seat, a book pushing guide rail motor is arranged at one end of the book pushing guide rail at the same side with the lifting platform motor, a vertically arranged support plate is connected at one side of the book pushing guide rail close to the book pushing platform, the supporting plate and the book pushing guide rail are both arranged in parallel with the lifting platform, one side of the bottom of the supporting plate close to the book pushing platform is connected with a blocking plate which is arranged opposite to the supporting plate through a horizontally arranged platform, one end of the platform close to the book pushing guide rail motor is provided with a vertically arranged connecting plate, a push plate is arranged on the connecting plate, a connecting rod is arranged on one side of the push plate close to the book pushing guide rail motor, an open slot penetrating through the right end of the supporting plate is transversely arranged at the bottom of the supporting plate, one end of the connecting rod penetrates through the open slot to be connected with a sliding block in the book pushing guide rail, and the book pushing guide rail motor is started to enable the pushing plate to move along the platform to push books to the bookshelf.
Furthermore, the bookcase is detachably connected with the frame body, and comprises a bottom plate, web plates positioned on two sides of the bottom plate and a baffle plate positioned at one end of the bottom plate and on the same side as the fixed plate, wherein the bottom plate consists of two symmetrically arranged support plates, and an axially arranged gap with equal spacing is reserved between the two support plates;
be provided with the linear guide parallel with the bottom plate between bottom plate and base, linear guide corresponds the setting with the space, lead screw I in the linear guide is controlled by linear guide motor, linear guide motor is located the one end that is close to the fixed plate, the cover is equipped with the sliding block on the lead screw I, the sliding block passes through the carrier connector and pushes away the book platform and be connected, the carrier connector passes the space and makes to push away the book platform and be located the book case bottom, makes to push away the book platform and move on lead screw I through starting linear guide motor.
Further, two all be provided with the installation piece on the outer wall of web, correspond the installation piece on the inner wall of mounting panel and be provided with the protruding draw-in groove that matches with the installation piece.
Furthermore, the tops of the two webs are provided with hanging rings.
Furthermore, a through groove which is vertically arranged is formed in the end face, close to the baffle, of one side of the book pushing platform, a spring buckle is arranged at each of the upper end and the lower end of the carrier combiner and penetrates through a through hole which is formed in the horizontal direction, convex balls which are located outside the through holes are arranged at the two ends of the spring buckle, and mounting holes which correspond to the convex balls are formed in the through groove, so that the carrier combiner and the book pushing platform can be detachably connected.
Further, the bottom of baffle corresponds the space and is provided with the opening, the opening can supply the carrier combiner to pass, just the open-ended size is less than the size that pushes away the book platform, is provided with at the opening part of baffle and pushes away the braced frame that the book platform is parallel, braced frame's inner chamber size with push away the book platform unanimous, all be provided with the dead lever in the both sides that push away the book platform, and be provided with on braced frame's both sides cradling piece with dead lever assorted fixed recess.
Furthermore, the intelligent traveling wheels are Mecanum wheels, and a vehicle body motor is arranged in the vehicle frame body corresponding to the Mecanum wheels.
Furthermore, the lifting mechanism is a fork-shaped lifting rod, the fork-shaped lifting rod is fixed by a plurality of moving rods in a cross connection mode, and the moving rod part at the lower right side of the lower end of the fork-shaped lifting rod is embedded into the sliding fixing table.
Furthermore, the bottom of the end, away from the lifting mechanism, of the base is provided with an automatic charging mechanism, and the two ends of the base are provided with double laser radar sensors.
Furthermore, book detection mechanism and UWB indoor positioning system are arranged in the book shelf body, and RFID electronic tags are arranged on corresponding books.
The beneficial effects of the utility model reside in that:
(1) the spring fastener of the carrier connector of the utility model is matched with the mounting hole of the book pushing platform for detachable connection, and the spring fastener is fastened in the book transporting process, so that the book pushing platform is not required to fall off in the book transporting process, and the ingenious combination relationship of the spring fastener and the book pushing platform has safety and reliability;
(2) the utility model discloses a book case and a vehicle frame body can be dismantled and connected, and linear guide is located the bottom of book case, the carrier connector passes through the space of book case bottom and makes the book pushing platform be located the book case bottom, and the bottom of baffle corresponds the space and is provided with the opening, the opening can be passed by the carrier connector, after the book in the book case is gone back, remind the staff to change the book case, start linear guide motor control book pushing platform and move, when book pushing platform moves to the braced frame, the fixed recess of braced frame fixes the dead lever of book pushing platform, because of the resistance, and book pushing platform can not pass the opening part, the spring catch of carrier connector separates with the mounting hole of book pushing platform at this moment, the carrier connector passes the opening, book pushing platform fixes in the braced frame at this moment, can adopt the machine to break away from the book case through rings on both sides from the vehicle frame body, such a structure can carry out quick, books in the book box can be filled and emptied conveniently, so that the books can be changed and loaded more quickly, and time is saved;
(3) the lifting mechanism of the utility model uses the fork-shaped lifting rod, which saves more space, enables the device to move more flexibly in the narrow space of the library, can adjust the maximum height limit according to the height of the book shelf, ensures that the books can be accurately conveyed to the book shelf through the lifting platform, and greatly increases the safety factor of the design mode;
(4) the utility model utilizes Mecanum wheels, which is more flexible to move relative to common wheels and can adapt to the narrow space between the bookshelves of the library, and the utility model utilizes double laser radar sensors and UWB indoor positioning to identify the correct placing position of books through the high-precision indoor positioning system, thereby playing the whole system judgment function, finding the target position more accurately in the library relative to the black line laid on the ground, and reasonably avoiding obstacles in the environment by utilizing the detection device, so that the adaptability is stronger, simultaneously utilizing the RFID electronic tag to record book information, more flexible to the identification of bar codes and two-dimensional codes, and utilizing the book detection device to retrieve and identify the book information, the information reading is more accurate, and the utility model automatically returns to charge when the electric quantity is insufficient, making it more automated.
Drawings
Fig. 1 is a top view of the present invention;
fig. 2 is a bottom view of the present invention;
fig. 3 is a schematic structural diagram of the present invention;
fig. 4 is a schematic structural view of the book pushing mechanism and the lifting mechanism of the present invention;
FIG. 5 is a schematic structural view of the book case and the linear guide rail of the present invention;
FIG. 6 is an exploded view of the carrier adapter and the book pushing platform of the present invention;
reference numerals: 1. the intelligent book-pushing device comprises a frame body, 101, a base, 102, a mounting plate, 103, a fixing plate, 104, an intelligent traveling wheel, 2, a book box, 201, a bottom plate, 202, a web plate, 203, a baffle plate, 204, a support plate, 205, a gap, 3, a book-pushing table, 4, a sliding fixing table, 5, a lifting table, 6, a lifting table motor, 7, a book-pushing guide rail, 8, a book-pushing guide rail motor, 9, a support plate, 10, a blocking plate, 11, a platform, 12, a connecting plate, 13, a push plate, 14, a connecting rod, 15, an open slot, 16, a linear guide rail, 17, a carrier connector, 18, a mounting block, 19, a protrusion clamping slot, 20, a lifting ring, 21, a penetrating slot, 22, a spring fastener, 23, an opening, 24, a fork-shaped lifting rod, 25, an automatic charging mechanism, 26, a double-laser radar sensor, 27, a.
Detailed Description
The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the accompanying drawings.
Example 1
As shown in the attached drawings, the intelligent library book returning device comprises a frame body 1, a book box 2, a lifting mechanism, a book conveying mechanism for pushing books above the lifting mechanism and a book pushing mechanism for pushing the books to a bookshelf;
the bicycle frame body 1 is a frame structure which is formed by mutually enclosing a base 101, mounting plates 102 on two sides and a fixing plate 103 at one end and has a rectangular cross section, four corners of the bottom of the base 101 are respectively connected with intelligent traveling wheels 104, the intelligent traveling wheels 104 are Mecanum wheels, a vehicle body motor is arranged in the bicycle frame body 1 corresponding to the Mecanum wheels, and the Mecanum wheels are utilized to move more flexibly relative to common wheels and can adapt to narrow spaces among the bookshelves of a library;
the book box 2 is positioned in the bicycle frame body 1, the book box 2 is detachably connected with the bicycle frame body 1, the book box 2 comprises a bottom plate 201, web plates 202 positioned at two sides of the bottom plate and a baffle plate 203 positioned at one end of the bottom plate and at the same side of the fixed plate, the bottom plate 201 is arranged in an upward inclined manner, namely, the end far away from the baffle is higher, so that the books standing in the book pushing table 3 are not easy to topple over in the book pushing process, the stable movement of the books is kept, the baffle plate 203 is arranged in parallel with the fixing plate 103, the outer walls of the two webs 202 are both vertically provided with mounting blocks 18, the number of the mounting blocks 18 can be two, the mounting blocks are symmetrical and parallel to each other, the inner wall of the mounting plate is provided with a raised clamping groove 19 matched with the mounting blocks corresponding to the mounting blocks, the tops of the two webs 202 are provided with lifting rings 20, the bottom plate 201 is composed of two symmetrically arranged support plates 204, and a gap 205 which is arranged along the axial direction and has equal spacing is reserved between the two bracket plates 204;
a linear guide rail 16 parallel to the bottom plate 201 is arranged between the bottom plate 201 and the base 101, the linear guide rail 16 is arranged corresponding to the gap 205, a lead screw i in the linear guide rail 16 is controlled by a linear guide rail motor, the linear guide rail motor is arranged at one end close to the fixed plate, a sliding block is sleeved on the lead screw i, the sliding block is connected with the book pushing table 3 through a carrier connector 17, a vertically arranged through groove 21 is arranged on one side end surface of the book pushing table 3 close to the fixed plate, spring buckles 22 are arranged at the upper end and the lower end of the carrier connector 17 through a through hole which is horizontally arranged in a penetrating way, convex balls arranged outside the through hole are arranged at the two ends of the spring buckles 22, a mounting hole corresponding to the convex ball is arranged on the through groove 21, so that the carrier connector 17 is tightly connected with the book pushing table 3 in the book transporting process, the spring buckles of the carrier connector 17 are in fit connection with the mounting hole of the book pushing table 3, the book conveying device is fastened without worrying about the falling off of the book pushing platform of the book conveying device, and the ingenious combination relationship of the book conveying device and the book pushing platform has safety and reliability;
it sets up with 2 bottom plates of book case perpendicularly to push away book platform 3, carrier combiner 17 passes the space and makes to push away book platform 3 and be located the book case bottom, makes to push away book platform 3 and move on lead screw I through starting linear guide motor, the bottom of baffle 203 corresponds the space and is provided with opening 23, opening 23 can supply carrier combiner 17 to pass, opening 23's size is less than the size that pushes away book platform 3, just opening 23 size is less than the books that need transport, avoids the book to drop from opening 23, is provided with and pushes away the parallel braced frame of book platform at the opening part of baffle 203, braced frame's inner chamber size with push away the book platform unanimously, all is provided with the dead lever in the both sides that push away book platform 3, and be provided with on braced frame's both sides cradling piece with dead lever assorted fixed recess. After books in the book box are returned, a worker is reminded to replace the book box, the linear guide rail motor is started to control the book pushing platform 3 to move, when the book pushing platform 3 moves to the supporting frame, the fixing groove of the supporting frame fixes the fixing rod of the book pushing platform 3, due to resistance, the book pushing platform 3 cannot penetrate through the opening, the spring fastener of the carrier connector 17 is separated from the mounting hole of the book pushing platform 3 at the moment, the carrier connector 17 penetrates through the opening 23, the book pushing platform 3 is fixed in the supporting frame at the moment, the book box 2 can be separated from the frame body 1 through the hanging rings 20 on two sides by adopting a machine, and the structure can be quickly assembled and disassembled, so that the books in the book box can be conveniently filled and emptied, the books can be quickly assembled and disassembled, and the time is saved;
the rectangle slip fixed station 4 that the level set up is connected to the one end that base 101 is relative with the fixed plate, elevating system sets up in the top of slip fixed station 4, elevating system is Y-shaped lifter 24, Y-shaped lifter 24 is fixed by many moving pole cross connection, the lower extreme right side below of Y-shaped lifter 24 moves pole part embedding slip fixed station, the one end that elevating system was kept away from to the base is provided with the motor case, install battery components in the motor case. The top of the lifting mechanism is transversely provided with a lifting table 5, the length of the lifting table is greater than that of the sliding fixing table 4, the lifting table 5 is arranged in parallel with the fixing plate 103, a screw II is fixedly arranged in a groove body in the lifting table 5, and one end of the lifting table 5 is provided with a lifting table motor 6 for controlling the screw II;
the book pushing mechanism comprises a book pushing guide rail 7 which is positioned above the lifting platform and connected with the screw II through a sliding seat, a book pushing guide rail motor 8 is arranged at one end of the book pushing guide rail 7 on the same side with the lifting platform motor, a vertically arranged support plate 9 is connected at one side of the book pushing guide rail 7 close to the book pushing platform, a blocking plate 10 which is arranged opposite to the support plate is connected at one side of the bottom of the support plate 9 close to the book pushing platform through a horizontally arranged platform 11, a vertically arranged connecting plate 12 is arranged at one end of the platform 11 close to the book pushing guide rail motor, the platform 11 is used for placing books pushed by the book pushing platform, two ends of the connecting plate 12 are respectively connected with the support plate 9 and the blocking plate 10, the support plate 9 and the book pushing guide rail 7 are all arranged in parallel with the lifting platform 5, the length of the blocking plate 10 is greater than that of the support plate 9, and the height of, the book shelf is characterized in that a push plate 13 is arranged on the connecting plate 12, a connecting rod 14 is arranged on one side, close to the book pushing guide rail motor, of the push plate 13, an open groove 15 penetrating through the right end of the supporting plate is transversely formed in the bottom of the supporting plate 9, and one end of the connecting rod 14 penetrates through the open groove and is controlled by the book pushing guide rail motor, so that the push plate 13 moves along the platform to push books to the book shelf.
Further, the bottom of the end, away from the lifting mechanism, of the base 101 is provided with an automatic charging mechanism 25, and two laser radar sensors 26 are arranged at two ends of the base 101.
Furthermore, book detection mechanism and UWB indoor positioning system are arranged inside the book shelf body 1, and RFID electronic tags are arranged on corresponding books.
The working process is as follows: placing a book box 2 filled with books to be returned in a frame body 1 through a machine, clamping a mounting block 18 of the book box 2 in a raised clamping groove 19 at the moment to fix and stabilize the book box 2, identifying the placing position of the book box where the books need to be placed by using a double laser radar sensor 26 and a UWB indoor positioning and book detecting mechanism, driving the placing position by adopting a Mecanum wheel, starting a linear guide rail motor to control a carrier connector 17 to pass through an opening 23 at the moment, connecting the carrier connector 17 with a book pushing platform 3 of a supporting frame, enabling the linear guide rail motor to control the book pushing platform 3 to move, driving the books to move towards a lifting platform 5, starting a fork-shaped lifting rod 24 at the moment, adjusting the height of the fork-shaped lifting rod 24 according to the height of the book shelf to ensure that the books can be accurately conveyed into the book shelf, and adjusting the fork-shaped lifting rod 24 to a proper height, the lifting platform motor is started, the supporting plate 9 is driven, the platform 11 and the book pushing guide rail 7 are moved to one end, close to the bookshelf, of the lifting platform 5, the book pushing guide rail motor 8 is started at the moment, the pushing plate 13 moves along the platform 11 to push books to the bookshelf, after books in the bookshelf return, workers are reminded to replace the book box 2, the linear guide rail motor is started to control the book pushing platform 3 to move, when the book pushing platform 3 moves to the supporting frame, fixing rods of the book pushing platform 3 are fixed through fixing grooves of the supporting frame, due to resistance, the book pushing platform 3 cannot penetrate through the opening, at the moment, spring buckles of the carrier connector 17 are separated from mounting holes of the book pushing platform 3, the carrier connector 17 penetrates through the opening 23, at the moment, the book pushing platform 3 is fixed in the supporting frame, and the book box 2 can be separated from the frame body 1 through the hanging rings 20 on two sides by.
Having shown and described the basic principles, essential features and advantages of the invention, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are merely illustrative of the principles of the invention, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, as claimed herein.
Claims (10)
1. The utility model provides a library's intelligence book still device which characterized in that: comprises a frame body (1), a book box (2), a lifting mechanism, a book conveying mechanism for pushing books above the lifting mechanism and a book pushing mechanism for pushing the books to a bookshelf;
the book conveying mechanism comprises a book pushing table (3) vertically arranged at the bottom of the book box (2), and the book pushing table (3) is arranged in the book box (2) in an axial sliding mode;
one end, opposite to the fixed plate, of the base (101) is connected with a horizontally arranged rectangular sliding fixed table (4), the lifting mechanism is arranged above the sliding fixed table (4), a lifting table (5) is transversely arranged at the top of the lifting mechanism, the lifting table (5) is arranged in parallel with the fixed plate (103), a screw II is fixedly arranged in a groove body in the lifting table (5), and a lifting table motor (6) for controlling the screw II is arranged at one end of the lifting table (5);
the book pushing mechanism comprises a book pushing guide rail (7) which is positioned above the lifting platform and connected with the lead screw II through a sliding seat, a book pushing guide rail motor (8) is arranged at one end of the book pushing guide rail (7) which is positioned at the same side with the lifting platform motor, one side, close to the book pushing platform, of the book pushing guide rail (7) is connected with a vertically arranged support plate (9), the support plate (9) and the book pushing guide rail (7) are both arranged in parallel with the lifting platform (5), one side, close to the book pushing platform, of the bottom of the support plate (9) is connected with a blocking plate (10) which is arranged opposite to the support plate through a horizontally arranged platform (11), one end, close to the book pushing guide rail motor, of the platform (11) is provided with a vertically arranged connecting plate (12), a push plate (13) is arranged on the connecting plate (12), and one side, close to, the bottom of backup pad (9) transversely is provided with open slot (15) that runs through the backup pad right-hand member, the one end of connecting rod (14) is passed the open slot and is connected with the slider that pushes away in book guide rail (7), pushes away book guide rail motor through the start and makes push pedal (13) move on the platform with books propelling movement to bookshelf.
2. The intelligent library book returning device of claim 1, wherein: the bookcase (2) is detachably connected with the frame body (1), the bookcase (2) comprises a bottom plate (201), webs (202) positioned on two sides of the bottom plate and a baffle (203) positioned at one end of the bottom plate and on the same side as the fixed plate, the bottom plate (201) is composed of two symmetrically arranged support plates (204), and a gap (205) which is arranged at equal intervals along the axial direction is reserved between the two support plates (204);
be provided with between bottom plate (201) and base (101) linear guide (16) parallel with bottom plate (201), linear guide (16) correspond the setting with space (205), lead screw I in linear guide (16) is by linear guide motor control, the linear guide motor is located the one end near the fixed plate, the cover is equipped with the sliding block on the lead screw I, the sliding block passes through carrier connector (17) and pushes away book platform (3) and be connected, carrier connector (17) pass the space and make to push away book platform (3) and be located the book case bottom, make to push away book platform (3) and move on lead screw I through starting linear guide motor.
3. The intelligent library book returning device of claim 2, wherein: the outer wall of two web (202) all is provided with installation piece (18), correspond the installation piece on the inner wall of mounting panel and be provided with protruding draw-in groove (19) that match with the installation piece.
4. The intelligent library book returning device of claim 2 or 3, wherein: the top of each of the two webs (202) is provided with a lifting ring (20).
5. The intelligent library book returning device of claim 2, wherein: push away and be provided with on book platform (3) the side end face that is close to the baffle run through groove (21) that run through of vertical setting, just the upper and lower both ends of carrier connector (17) all run through the through-hole that sets up through the level and be equipped with snak link (22), the both ends of snak link (22) are provided with the protruding ball that is located outside the through-hole, run through and be provided with the mounting hole that corresponds with the protruding ball on groove (21) for carrier connector (17) can be dismantled with push away book platform (3) and be connected.
6. The intelligent library book returning device of claim 5, wherein: the bottom of baffle (203) corresponds the space and is provided with opening (23), opening (23) can supply carrier combiner (17) to pass, just the size of opening (23) is less than the size that pushes away book platform (3), is provided with at the opening part of baffle (203) and pushes away braced frame (27) that the book platform is parallel, braced frame (27) the inner chamber size with push away the book platform unanimously, all be provided with dead lever (28) in the both sides that push away book platform (3), and be provided with on the both sides cradling piece of braced frame (27) with dead lever assorted fixed recess (29).
7. The intelligent library book returning device of claim 1, wherein: the intelligent traveling wheels (104) are Mecanum wheels, and a vehicle body motor is arranged in the frame body (1) corresponding to the Mecanum wheels.
8. The intelligent library book returning device of claim 1, wherein: the lifting mechanism is a fork-shaped lifting rod (24), the fork-shaped lifting rod (24) is fixed by a plurality of moving rods in a cross connection mode, and the moving rod part at the lower right side of the lower end of the fork-shaped lifting rod (24) is embedded into the sliding fixing table.
9. The intelligent library book returning device of claim 1, wherein: the base (101) keep away from elevating system's one end bottom and be provided with automatic charging mechanism (25), just base (101) both ends are provided with two laser radar sensors (26).
10. The intelligent library book returning device of claim 1, wherein: the inside books detection mechanism and the indoor positioning system of UWB that are provided with of car frame body (1) correspond and are provided with RFID electronic tags on the books.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922461438.0U CN211882799U (en) | 2019-12-31 | 2019-12-31 | Library's intelligence still books device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922461438.0U CN211882799U (en) | 2019-12-31 | 2019-12-31 | Library's intelligence still books device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211882799U true CN211882799U (en) | 2020-11-10 |
Family
ID=73295085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922461438.0U Expired - Fee Related CN211882799U (en) | 2019-12-31 | 2019-12-31 | Library's intelligence still books device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211882799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111012048A (en) * | 2019-12-31 | 2020-04-17 | 洛阳理工学院 | Library's intelligence still books device |
-
2019
- 2019-12-31 CN CN201922461438.0U patent/CN211882799U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111012048A (en) * | 2019-12-31 | 2020-04-17 | 洛阳理工学院 | Library's intelligence still books device |
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Granted publication date: 20201110 Termination date: 20211231 |