CN110150870A - A kind of bookcase and its search method convenient for retrieving books - Google Patents
A kind of bookcase and its search method convenient for retrieving books Download PDFInfo
- Publication number
- CN110150870A CN110150870A CN201810248975.4A CN201810248975A CN110150870A CN 110150870 A CN110150870 A CN 110150870A CN 201810248975 A CN201810248975 A CN 201810248975A CN 110150870 A CN110150870 A CN 110150870A
- Authority
- CN
- China
- Prior art keywords
- books
- cabinet
- cabinet body
- groove
- hydraulic device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B63/00—Cabinets, racks or shelf units, specially adapted for storing books, documents, forms, or the like
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
- A47B88/40—Sliding drawers; Slides or guides therefor
- A47B88/453—Actuated drawers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
- A47B88/40—Sliding drawers; Slides or guides therefor
- A47B88/453—Actuated drawers
- A47B88/457—Actuated drawers operated by electrically-powered actuation means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
- A47B88/40—Sliding drawers; Slides or guides therefor
- A47B88/49—Sliding drawers; Slides or guides therefor with double extensible guides or parts
- A47B88/493—Sliding drawers; Slides or guides therefor with double extensible guides or parts with rollers, ball bearings, wheels, or the like
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
- A47B88/50—Safety devices or the like for drawers
- A47B88/57—Safety devices or the like for drawers preventing complete withdrawal of the drawer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2220/00—General furniture construction, e.g. fittings
- A47B2220/0091—Electronic or electric devices
- A47B2220/0094—Bed, service tables or book-rests with electric items
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Warehouses Or Storage Devices (AREA)
Abstract
The invention discloses a kind of bookcases convenient for retrieving books, feet including cabinet body and setting bottom of cabinet bulk, cabinet body front rectangular array opens up fluted, bookshelf board is mounted in the groove, the idler wheel rolling that the bookshelf board bottom is connected by supporting leg is connected to groove, running through on the positive transverse concave groove of cabinet body has servo drive, running through on the servo drive has guide block, the guide block is slidably connected to cabinet body by sliding block, the guide block side is connected with hydraulic device by connecting plate, the hydraulic device output end is equipped with the push plate for being close to bookshelf board, PLC control cabinet is installed on the left of the cabinet body, the present invention controls servo drive and hydraulic device feeding movement by PLC control cabinet, the bookshelf board for retrieving books position can be pushed out to come, people are facilitated directly to arrive cabinet body books simultaneously Position saves without looking for books number and looks for the time, improve recall precision, be suitble to be widely popularized.
Description
Technical field
The present invention relates to books bookcase technical field, specially a kind of bookcase convenient for retrieving books, the invention further relates to
A kind of search method convenient for retrieving the bookcase of books.
Background technique
Library is to collect, arrange, collecting books and reference materials for the mechanism of people's reading, reference, early in B.C. 3000
There have been library, library, which has, to be saved Human Cultural Heritage, exploitation information resources, participates in the functions such as social education.Books
Shop is derived from the habit for saving account.Library is the special field provided in shop using document for reader.Library is read
Look at room be generally divided into common reading room, special reading room and refer to 3 seed type of research department.
Cabinet structure of the books bookcase as placement books important in library, existing books are typically all with bookcase
Setting number is used to that people is facilitated to retrieve on bookcase, and this mode is more troublesome, and the dead angle of some bookcases is easy to be ignored,
Cause retrieval look for books efficiency it is relatively low under, be not suitable for promote the use of.
Summary of the invention
The purpose of the present invention is to provide a kind of bookcases and its search method convenient for retrieving books, pass through PLC control cabinet
Servo drive and hydraulic device feeding movement are controlled, the bookshelf board for retrieving books position can be pushed out to come, while side
Persons who happens to be on hand for an errand directly arrive cabinet body books position, without looking for books number, save and look for the time, improve recall precision, with solution
Certainly the problems mentioned above in the background art.
To achieve the above object, the invention provides the following technical scheme: a kind of bookcase convenient for retrieving books, including cabinet body
And the feet of setting bottom of cabinet bulk, cabinet body front rectangular array opens up fluted, is mounted on bookshelf in the groove
Plate, the idler wheel that the bookshelf board bottom is connected by supporting leg, which rolls, is connected to groove, on the positive transverse concave groove of cabinet body
Through there is servo drive, running through on the servo drive has guide block, and the guide block is slidably connected to cabinet by sliding block
Body, the guide block side are connected with hydraulic device by connecting plate, and the hydraulic device output end, which is equipped with, is close to pushing away for bookshelf board
Plate, is equipped with PLC control cabinet on the left of the cabinet body, and the PLC control cabinet includes cabinet, chamber door, wiring board and relay switch,
The chamber door and cabinet are hinged, and the wiring board is mounted in cabinet, and the relay switch is installed in the circuit board at equal intervals,
The hydraulic device and PLC control cabinet are electrically connected, and are equipped with touch screen and handle on the chamber door.
Preferably, it is to fall c-type that the bookshelf board, which is cross sectional shape, and the front of the bookshelf board and top are open setting.
Preferably, the idler wheel is rotationally connected with supporting leg by roller bearing, and idler wheel scrolling position is corresponded on the groove and is opened up
There is the race to match, the race middle position is equipped with limited block.
Preferably, the servo drive includes servo motor, screw rod and axle sleeve, and the servo motor is installed in cabinet
On the right side of body, the screw rod right end and the transmission connection of servo motor output end, the screw rod left end is mounted on a cabinet body left side by axle sleeve
Side, the servo motor and PLC control cabinet are electrically connected.
Preferably, sliding block sliding position is corresponded on the cabinet body offer the sliding rail to match.
Preferably, the lateral position of the groove and the groove offers the through slot to match with hydraulic device.
Preferably, the hydraulic device includes hydraulic cylinder and the piston rod that hydraulic cylinder output end is arranged in.
Preferably, the location hole for being respectively equipped with positioning bolt on the cabinet and chamber door and matching, the touch screen and
Relay switch is electrically connected.
The present invention also provides a kind of search methods convenient for retrieving the bookcase of books, comprising the following steps:
S1: it when needing to retrieve the intracorporal books of cabinet, is retrieved by the touch screen being electrically connected in PLC control cabinet；
S2: after search complete, hydraulic device is pushed to the recessed of the books for placing retrieval by guide block by servo drive movement
In slot；
S3: movement when hydraulic device is moved to the groove side for being placed with retrieval books, by pushing the bookshelf board in groove by book
Nationality is pushed out groove；
S4: after taking books, PLC controls hydraulic device and servo drive resets.
Compared with prior art, the beneficial effects of the present invention are: the present invention passes through setting in the groove opened up on the cabinet
Bookshelf board structure, books are placed in bookshelf board, are retrieved using the touch screen on the chamber door in PLC control cabinet, are controlled by PLC
Cabinet controls servo drive and hydraulic device feeding movement, the bookshelf board for retrieving books position can be pushed out to come, simultaneously
Facilitate people directly to arrive cabinet body books position, without looking for books number, saves and look for the time, improve recall precision, fit
Conjunction is widely popularized.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram convenient for retrieving the bookcase of books of the present invention；
Fig. 2 is structural schematic diagram after a kind of removal bookshelf board convenient for retrieving the bookcase of books of the present invention；
Fig. 3 is a kind of servo drive structural schematic diagram convenient for retrieving the bookcase of books of the present invention；
Fig. 4 is a kind of groove medial surface structural schematic diagram convenient for retrieving the bookcase of books of the present invention；
Fig. 5 is enlarged structure at a kind of A convenient for retrieving the bookcase of books of the present invention；
Fig. 6 is structural schematic diagram after a kind of PLC control cabinet convenient for retrieving the bookcase of books of the present invention is opened；
Fig. 7 is structural schematic diagram after a kind of PLC control cabinet closure convenient for retrieving the bookcase of books of the present invention
Fig. 8 is a kind of circuit module figure convenient for retrieving the bookcase of books of the present invention.
In figure: 1 cabinet body, 2 feets, 3 grooves, 4 bookshelf boards, 5 PLC control cabinets, 51 cabinets, 52 chamber doors, 521 touch screens,
522 handles, 53 wiring boards, 54 relay switches, 6 servo drives, 61 servo motors, 62 screw rods, 63 axle sleeves, 7 push plates, 8
Guide block, 9 hydraulic devices, 10 hydraulic devices, 101 hydraulic cylinders, 102 piston rods, 11 sliding blocks, 12 sliding rails, 13 supporting legs, 14 idler wheels, 15
Race, 16 roller bearings, 17 location holes, 18 positioning bolts, 19 limited blocks.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-8, the present invention provides a kind of technical solution: it is a kind of convenient for retrieve books bookcase, including cabinet body 1 with
And the feet 2 of setting 1 bottom of cabinet body, the 1 front rectangular array of cabinet body open up fluted 3, are mounted on book in the groove 3
Frame plate 4, the rolling of idler wheel 14 that 4 bottom of bookshelf board is connected by supporting leg 13 are connected to groove 3, the positive cross of the cabinet body 1
To on groove 3 through there is servo drive 6, running through on the servo drive 6 has guide block 8,6 work of servo drive
Make, control guide block 8 is moved left and right；The guide block 8 is slidably connected to cabinet body 1 by sliding block 11, and 8 side of guide block passes through
Connecting plate 9 is connected with hydraulic device 10, and 10 output end of hydraulic device is equipped with the push plate 7 for being close to bookshelf board 4, and hydraulic device can
Bookshelf board 4 to be pushed out, convenient search is looked for；PLC control cabinet 5, the PLC control cabinet 5 are installed on the left of the cabinet body 1
Including cabinet 51, chamber door 52, wiring board 53 and relay switch 54, the chamber door 52 and cabinet 51 are hinged, the wiring board 53
It is mounted in cabinet 51, the relay switch 54 is installed in assist side 53 at equal intervals, the hydraulic device 9 and PLC control
Cabinet 5 is electrically connected, and is equipped with touch screen 521 and handle 522 on the chamber door 52.
Specifically, it is that c-type, the front of the bookshelf board 4 and top are open and set that the bookshelf board 4, which is cross sectional shape,
It sets；Front and top are convenient to pick and place books in bookshelf board 4 by the way of opening setting.
Specifically, the idler wheel 14 is rotationally connected with supporting leg 13 by roller bearing 16, the rolling of idler wheel 14 is corresponded on the groove 3
Position offers the race 15 to match；15 structure of race to match is set, idler wheel 14 is facilitated to roll；Among the race 15
Position is equipped with limited block 19；Setting limited block 19 can completely disengage in groove 3 to avoid bookshelf board 4.
Specifically, the servo drive 6 includes servo motor 61, screw rod 62 and axle sleeve 63, the servo motor 61
It is installed in 1 right side of cabinet body, 62 right end of screw rod and the transmission connection of 61 output end of servo motor, 62 left end of screw rod passes through
Axle sleeve 63 is mounted on 1 left side of cabinet body, and the servo motor 61 and PLC control cabinet 5 are electrically connected；Servo motor 61 drives screw rod 62
Rotation drives guide block 8 mobile by screw rod 62.
Specifically, corresponding to 11 sliding position of sliding block on the cabinet body 1 offers the sliding rail 12 to match；It is arranged and matches
12 structure of sliding rail, facilitates sliding.
Lead to specifically, the lateral position of the groove 3 and the groove 3 is offered with what hydraulic device 10 matched
Slot；Through slot is set, for facilitating hydraulic device 10 to move left and right.
Specifically, the hydraulic device 10 includes hydraulic cylinder 101 and the piston rod 102 that 101 output end of hydraulic cylinder is arranged in；
Hydraulic cylinder 101 drives piston rod 102 to be moved forward and backward.
Specifically, the location hole 17 for being respectively equipped with positioning bolt 18 on the cabinet 51 and chamber door 52 and matching, setting
Positioning bolt 18 and location hole 17, facilitate chamber door 52 to close on cabinet 51, and the touch screen 521 and relay switch 54 are electrically
Connection.
The present invention also provides a kind of search methods convenient for retrieving the bookcase of books, comprising the following steps:
S1: it when needing to retrieve the intracorporal books of cabinet, is retrieved by the touch screen being electrically connected in PLC control cabinet；
S2: after search complete, hydraulic device is pushed to the recessed of the books for placing retrieval by guide block by servo drive movement
In slot；
S3: movement when hydraulic device is moved to the groove side for being placed with retrieval books, by pushing the bookshelf board in groove by book
Nationality is pushed out groove；
S4: after taking books, PLC controls hydraulic device and servo drive resets.
In summary: the present invention is placed on book by the way that 4 structure of bookshelf board, books are arranged in the groove 3 that opens up on cabinet body 1
It on frame plate 4, is retrieved using the touch screen 521 on the chamber door 52 in PLC control cabinet 5, servo-drive is controlled by PLC control cabinet 5
Device 6 and the feeding movement of hydraulic device 10, the bookshelf board 4 for retrieving books position can be pushed out to come, while facilitating people straight
It is connected to 1 books position of cabinet body, without looking for books number, saves and looks for the time, improve recall precision, be suitble to push away extensively
Extensively.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of bookcase convenient for retrieving books, the feet (2) including cabinet body (1) and setting cabinet body (1) bottom, feature exists
In: cabinet body (1) front rectangular array opens up fluted (3), is mounted on bookshelf board (4), the book in the groove (3)
Idler wheel (14) rolling that frame plate (4) bottom is connected by supporting leg (13) is connected to groove (3), the positive transverse direction of the cabinet body (1)
Through having servo drive (6) on groove (3), running through on the servo drive (6) has guide block (8), the guide block
(8) it is slidably connected to cabinet body (1) by sliding block (11), guide block (8) side is connected with hydraulic device by connecting plate (9)
(10), hydraulic device (10) output end is equipped with the push plate (7) for being close to bookshelf board (4), is equipped on the left of the cabinet body (1)
PLC control cabinet (5), the PLC control cabinet (5) include cabinet (51), chamber door (52), wiring board (53) and relay switch
(54), hingedly, the wiring board (53) is mounted in cabinet (51), the relay switch for the chamber door (52) and cabinet (51)
(54) it installs on assist side (53) at equal intervals, the hydraulic device (9) and PLC control cabinet (5) are electrically connected, the chamber door
(52) touch screen (521) and handle (522) are installed on.
2. a kind of bookcase convenient for retrieving books according to claim 1, it is characterised in that: the bookshelf board (4) is to cut
Face shape is to fall c-type, and the front of the bookshelf board (4) and top are open setting.
3. a kind of bookcase convenient for retrieving books according to claim 1, it is characterised in that: the idler wheel (14) passes through rolling
Axis (16) is rotationally connected with supporting leg (13), and idler wheel (14) scrolling position is corresponded on the groove (3) and offers the race to match
(15), race (15) middle position is equipped with limited block (19).
4. a kind of bookcase convenient for retrieving books according to claim 1, it is characterised in that: the servo drive
It (6) include servo motor (61), screw rod (62) and axle sleeve (63), the servo motor (61) is installed on the right side of cabinet body (1), institute
Screw rod (62) right end and the transmission connection of servo motor (61) output end are stated, screw rod (62) left end is mounted on by axle sleeve (63)
On the left of cabinet body (1), the servo motor (61) and PLC control cabinet (5) are electrically connected.
5. a kind of bookcase convenient for retrieving books according to claim 1, it is characterised in that: corresponding on the cabinet body (1)
Sliding block (11) sliding position offers the sliding rail (12) to match.
6. a kind of bookcase convenient for retrieving books according to claim 1, it is characterised in that: the groove (3) and described
The lateral position of groove (3) offers the through slot to match with hydraulic device (10).
7. a kind of bookcase convenient for retrieving books according to claim 1, it is characterised in that: hydraulic device (10) packet
Hydraulic cylinder (101) and setting are included in the piston rod (102) of hydraulic cylinder (101) output end.
8. a kind of bookcase convenient for retrieving books according to claim 1, it is characterised in that: the cabinet (51) and chamber door
(52) location hole (17) for being respectively equipped with positioning bolt (18) on and matching, the touch screen (521) and relay switch
(54) it is electrically connected.
9. a kind of search method of the bookcase according to claim 1 convenient for retrieval books, it is characterised in that: including following
Step:
S1: it when needing to retrieve the intracorporal books of cabinet, is retrieved by the touch screen being electrically connected in PLC control cabinet；
S2: after search complete, hydraulic device is pushed to the recessed of the books for placing retrieval by guide block by servo drive movement
In slot；
S3: movement when hydraulic device is moved to the groove side for being placed with retrieval books, by pushing the bookshelf board in groove by book
Nationality is pushed out groove；
S4: after taking books, PLC controls hydraulic device and servo drive resets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810248975.4A CN110150870A (en) | 2018-03-25 | 2018-03-25 | A kind of bookcase and its search method convenient for retrieving books |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810248975.4A CN110150870A (en) | 2018-03-25 | 2018-03-25 | A kind of bookcase and its search method convenient for retrieving books |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110150870A true CN110150870A (en) | 2019-08-23 |
Family
ID=67636249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810248975.4A Pending CN110150870A (en) | 2018-03-25 | 2018-03-25 | A kind of bookcase and its search method convenient for retrieving books |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110150870A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112205775A (en) * | 2020-09-30 | 2021-01-12 | 何友利 | Automatic conveying and classifying device for office cabinets |
| CN112244503A (en) * | 2020-10-30 | 2021-01-22 | 江西睡易生科技健康睡眠有限公司 | Desk convenient for students to access books |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354809A (en) * | 2007-07-25 | 2009-01-28 | 东莞图书馆 | Method and system of unattended guarding and autonomously borrowing and returning book by reader |
| KR101471183B1 (en) * | 2014-01-22 | 2014-12-10 | 한국오에스지 주식회사 | Auto chucking device for CNC lathe |
| CN104706033A (en) * | 2013-12-12 | 2015-06-17 | 天津首扬机电设备安装有限公司 | Automated book cabinet |
| CN205233908U (en) * | 2015-12-11 | 2016-05-18 | 浙江财经大学 | Intelligent retrieval type book case |
| CN106805520A (en) * | 2017-03-24 | 2017-06-09 | 张腊梅 | A kind of bookcase household and method with the visible light-seeking of intelligence |
| CN107054965A (en) * | 2015-09-10 | 2017-08-18 | 长江大学 | A kind of library collection protection intelligence is controllable to read device |
-
2018
- 2018-03-25 CN CN201810248975.4A patent/CN110150870A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354809A (en) * | 2007-07-25 | 2009-01-28 | 东莞图书馆 | Method and system of unattended guarding and autonomously borrowing and returning book by reader |
| CN104706033A (en) * | 2013-12-12 | 2015-06-17 | 天津首扬机电设备安装有限公司 | Automated book cabinet |
| KR101471183B1 (en) * | 2014-01-22 | 2014-12-10 | 한국오에스지 주식회사 | Auto chucking device for CNC lathe |
| CN107054965A (en) * | 2015-09-10 | 2017-08-18 | 长江大学 | A kind of library collection protection intelligence is controllable to read device |
| CN205233908U (en) * | 2015-12-11 | 2016-05-18 | 浙江财经大学 | Intelligent retrieval type book case |
| CN106805520A (en) * | 2017-03-24 | 2017-06-09 | 张腊梅 | A kind of bookcase household and method with the visible light-seeking of intelligence |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112205775A (en) * | 2020-09-30 | 2021-01-12 | 何友利 | Automatic conveying and classifying device for office cabinets |
| CN112244503A (en) * | 2020-10-30 | 2021-01-22 | 江西睡易生科技健康睡眠有限公司 | Desk convenient for students to access books |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190823 |
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| RJ01 | Rejection of invention patent application after publication |