CN113786065B

CN113786065B - Education examination desk

Info

Publication number: CN113786065B
Application number: CN202110892694.4A
Authority: CN
Inventors: 叶晓俊
Original assignee: Shenzhen Binsheng Technology Co ltd
Current assignee: Shenzhen Binsheng Technology Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2023-04-14
Anticipated expiration: 2041-08-04
Also published as: CN113786065A

Abstract

The invention discloses a desk for education and examination, which comprises a shell and a desk flip cover, wherein an opening and closing mechanism is arranged in the desk flip cover, a book loading mechanism and a test paper receiving and sending mechanism are arranged in the shell, the opening and closing mechanism can be locked, the book loading mechanism can classify and lift out textbooks in daily study, the height of a transmission belt can be controlled by using a screw slider in the book loading mechanism, and the further technical scheme is stopped.

Description

Education examination desk

Technical Field

The invention relates to the field of education systems, in particular to a desk for an education examination.

Background

At present desk function singleness in stage, books arrangement is mixed and disorderly in many times, hardly accurately find the books that will look for, when the examination, the desk often also can become the instrument that examinee cheated and stealed, if there is electronic equipment supplementary, will influence the fairness of examination, examinee expects in the examination hall easily east simultaneously, some can smuggle some data secretly even, then just some examinee's examination end does not have and stops a pen immediately, also unfair other examinees, and there is successively in the artifical examination paper of sending out of general examination, the time of examinee's time filling information of rear end is also still less.

Disclosure of Invention

The invention aims to provide an educational examination desk which is used for overcoming the defects in the prior art.

The education and examination desk comprises a shell and a desk turnover cover, wherein the shell is connected with the desk turnover cover through a rotating connecting rod, a pencil sharpener cavity and a stationery storage cavity are arranged in the desk turnover cover, an eraser scrap collecting cavity is arranged in the right end wall of the stationery storage cavity, a sundries storage cavity is arranged in the lower end wall of the pencil sharpener cavity, a textbook storage cavity is arranged in the lower end wall of the sundries storage cavity, a driving lever sliding cavity is arranged in the upper end wall of the textbook storage cavity, a shielding cavity is arranged in the right end wall of the sundries storage cavity, a book feeding transmission cavity is arranged in the lower end wall of the textbook storage cavity, a test paper storage cavity is arranged in the lower end wall of the book feeding transmission cavity, an operation cavity is arranged in the right end wall of the test paper storage cavity, a storage area is arranged in the lower end wall of the test paper storage cavity, a clamping plate cavity is arranged in the upper end wall of the casing, a pair of front and back symmetrical storage areas is arranged in the upper end wall of the clamping cavity, a connecting rod placing plate lead wire motor cavity is arranged in the lower end wall of the desk turnover cover, a clamping cavity, a front and back symmetrical storage area is arranged in the lower end wall of the clamping cavity, a clamping spring cavity, a front and back clamping mechanism and back mechanism is arranged in the desk turnover cover, so that the desk turnover cover can carry out classified study and book feeding and picking up study of the daily books;

the examination paper receiving and sending mechanism comprises a baffle mechanism capable of enabling an examination baffle to ascend and descend, a test paper conveying motor is fixedly connected to the right end wall of the operation cavity, a test paper conveying shaft is in power connection with the test paper conveying motor, the test paper conveying shaft is connected with a tensioning belt wheel through a test paper conveying belt, the tensioning belt wheel is connected with a test paper conveying rod located in the lower end wall of the operation cavity through the test paper conveying belt, the test paper conveying rod is connected with the tensioning belt wheel located in the left end wall through the test paper conveying belt, the tensioning belt wheel is connected with a magnetic clamping plate located in a desk flip through the test paper conveying belt, symmetrical lead holes in the upper end wall of the magnetic clamping plate are connected with lead motor shafts through flexible steel cables, the lead motor shafts are fixedly connected with a clamping plate lead motor lead collecting baffle, when the test paper is received, the test paper conveying motor is started, the magnetic clamping plate is clamped, a buckle of an electrified magnet is electrified, the buckle of the electrified magnet is retracted into the cavity, the test paper conveying motor drives the test paper conveying belt fixed with the test paper to move downwards, and the test paper is sent out, and the test paper can be driven.

Further technical scheme, baffle mechanism includes that the baffle that is equipped with in the casing deposits the chamber, the baffle is deposited the intracavity and is equipped with the peep-proof baffle, peep-proof baffle sliding connection has the guiding axle, be equipped with in the lower endwall of peep-proof baffle, be equipped with the cable wire fixed pulley of symmetry in the endwall of the left and right sides, be equipped with main fixed pulley in the casing, main fixed pulley fixedly connected with flexible cable wire.

A further technical scheme, the mechanism that opens and shuts includes the pencil sharpener motor that is equipped with in the wall of pencil sharpener chamber lower end, sharpener motor power is connected with sharpener motor output shaft, sharpener motor output shaft fixedly connected with sharpener fixed block, sharpener fixed block fixedly connected with roll blade, in the wall of pencil sharpener chamber right side be equipped with the circular telegram baffle in the electrically conductive groove of elasticity, be equipped with stationery storage chamber in the desk flip, the rotatable connecting rod that rotates of desk flip fixedly connected with, it is equipped with the rubber bits and collects the chamber to rotate the connecting rod below, fixedly connected with metal buckle in the wall of desk flip lower end.

According to the technical scheme, a buckle fixing shaft is arranged in the buckle cavity, a buckle is fixedly connected with the buckle, a buckle spring is arranged in the lower end wall of the buckle and the table cover buckle cavity, a buckle stop block is slidably connected to the upper end wall of the table cover buckle cavity, a buckle spring is arranged in the buckle stop block and the left end wall of the table cover buckle cavity, and a buckle spring cavity is arranged in the upper end wall of the table cover buckle cavity.

According to the technical scheme, an electromagnet is arranged in the upper end wall of the buckle spring cavity, a buckle spring baffle plate which is connected with the buckle spring cavity in a sliding mode is arranged in the buckle spring cavity, a buckle reset spring is arranged between the buckle spring baffle plate and the upper end wall of the buckle spring cavity, a positioning shaft sleeve is arranged on the periphery of the buckle reset spring, and a buckle ejector rod is fixedly connected with the buckle spring baffle plate.

According to the technical scheme, the desk flip cover is fixedly connected with a flexible steel cable, the flexible steel cable is fixedly connected with a shielding cavity fixing block, and the shielding cavity fixing block is fixedly connected with a shielding cavity upper end cover.

According to the technical scheme, the book feeding mechanism comprises a book feeding motor fixed to the upper end wall of a book feeding sliding block guide rail, the book feeding motor is in power connection with a screw rod, the screw rod is in rolling connection with a screw rod sleeve, the screw rod sleeve is located at one end of a book storage cavity and fixedly connected with a book conveying belt wheel, the screw rod sleeve is fixedly connected with a connecting rod rotating shaft, the connecting rod rotating shaft is fixedly connected with a book feeding connecting rod, the book feeding connecting rod is fixedly connected with a book feeding sliding block in sliding connection with the book feeding sliding block guide rail, and the screw rod sleeve is fixedly connected with a linkage driving lever.

According to the technical scheme, the linkage driving lever is connected to the driving lever sliding cavity in a sliding mode, one end, located in the sundries storage cavity, of the linkage driving lever is fixedly connected with a book placing plate sliding block, the book placing plate sliding block is fixedly connected with a book placing plate connecting rod, the book placing plate connecting rod is fixedly connected with a book placing plate, the book placing plate is fixedly connected with a rotatable book placing plate connecting shaft, and a conveyor belt motor is arranged in the right end wall of the conveyor belt cavity.

The invention has the beneficial effects that: the height of the stop of the transmission belt can be controlled by utilizing the screw rod sliding block, the self-locking can be realized by depending on the screw thread during the stop, no additional starting and stopping device is needed, the screw rod sliding block can enable the lifting and the falling to be more stable, the required books are conveyed to the designated height through the screw rod sliding block, the transmission belt runs, the books are conveyed to the designated platform, and the situation that the books are disordered and difficult to find is reduced;

the invention utilizes the electromagnet and the shielding case to control the opening and closing of the desk, and the examinee puts personal articles into the shielding case to prevent the students from cheating by utilizing electronic equipment;

the test paper transportation area of utilization design can receive and dispatch the test paper automatically to make every examinee can both take the test paper simultaneously, can drive the peep-proof board and rise when sending the test paper, block other examinee's eyesight, also can let self more be absorbed in simultaneously and answer the examination.

Drawings

FIG. 1 is a schematic view of the overall structure of a desk for educational examination according to the present invention;

FIG. 2 isbase:Sub>A schematic view of A-A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of B-B of FIG. 1 in accordance with the present invention;

FIG. 4 is a schematic view of C-C of FIG. 1 according to the present invention;

FIG. 5 is a schematic view of D-D of FIG. 2 in accordance with the present invention;

FIG. 6 is a schematic view of E-E of FIG. 1 in accordance with the present invention;

FIG. 7 is a partial cross-sectional view of FIG. 1 of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 7 of the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 1 of the present invention;

fig. 10 is an enlarged view of a portion of fig. 1 of the present invention.

Detailed Description

For purposes of making the objects and advantages of the present invention more apparent, the following detailed description of the invention, taken in conjunction with the examples, should be understood that the following text is intended only to describe an educational examination desk or several specific embodiments of the invention, and not to strictly limit the scope of the invention as specifically claimed, as used herein, the terms top, bottom, left and right are not limited to strict geometric definitions thereof, but rather include tolerances for reasonable and inconsistent machining or human error, the following detailed description of specific features of the educational examination desk:

referring to fig. 1 to 10, an educational examination desk according to an embodiment of the present invention includes

A casing 10 and a desk flip 35, wherein the casing 10 is connected with the desk flip 35 through a rotating connecting rod 37, a pencil sharpener cavity 42 and a stationery storage cavity 39 are arranged in the desk flip 35, an eraser scrap collecting cavity 36 is arranged in the right end wall of the stationery storage cavity 39, a sundries storage cavity 18 is arranged in the lower end wall of the pencil sharpener cavity 42, a textbook storage cavity 40 is arranged in the lower end wall of the sundries storage cavity 18, a shift lever sliding cavity 71 is arranged in the upper end wall of the textbook storage cavity 40, a shielding cavity 30 is arranged in the right end wall of the sundries storage cavity 18, a book feeding transmission cavity 23 is arranged in the lower end wall of the textbook storage cavity 40, a test paper storage cavity 57 is arranged in the lower end wall of the book feeding transmission cavity 23, an operation cavity 28 is arranged in the right end wall of the test paper storage cavity 57, a test paper storage area 14 is arranged in the lower end wall of the test paper storage cavity 57, a clamping plate cavity 84 is arranged in the upper end wall of the casing 10, a pair of symmetrical lead wire cavities 69 is arranged in the upper end wall of the clamping cavity 84, a clamping buckle cavity 59 is arranged in the lower end wall, a clamping buckle cavity 59, a spring cavity 59 is arranged in a front-back symmetrical clamping spring cavity, a folding mechanism 64 is arranged in the front-back clamping mechanism 76, and a mechanism 76 is arranged in the desk flip mechanism, so that the desk flip mechanism can be used for carrying out a daily book feeding mechanism 75 and a book feeding mechanism for carrying out a study book sorting mechanism 75 and a book feeding mechanism 75, and a daily book feeding mechanism 75, so as to lift up a book mechanism for carrying out a daily book sorting mechanism 75, and a daily book feeding mechanism for taking mechanism 75, and a daily book taking mechanism for taking out a daily book taking out mechanism for taking mechanism;

the examination paper receiving and sending mechanism 77 comprises a baffle mechanism 78 capable of enabling an examination baffle to ascend and descend, a test paper conveying motor 88 is fixedly connected to the right end wall of the operation cavity 28, the test paper conveying motor 88 is in power connection with a test paper conveying shaft 85, the test paper conveying shaft 85 is connected with a tensioning belt wheel 15 through a test paper conveying belt 11, the tensioning belt wheel 15 is connected with a test paper conveying rod 87 located in the lower end wall of the operation cavity 28 through the test paper conveying belt 11, the test paper conveying rod 87 is connected with the tensioning belt wheel 15 located in the left end wall through the test paper conveying belt 11, the tensioning belt wheel 15 is connected with a magnetic clamp plate 81 located in the desk flip 35 through the test paper conveying belt 11, lead holes 80 which are symmetrical left and right are arranged in the upper end wall of the magnetic clamp plate 81 and connected with lead motor shafts 90 through flexible steel cables 93, the lead motor shafts 90 are fixedly connected with clamp plate lead collecting baffles 91, and the test paper conveying motor 88 and the clamp plate lead motor 89 can drive the test paper conveying belt 11 to move up and down in the test paper conveying cavity 13, so as to drive test papers and complete the examination paper receiving and sending.

Beneficially or exemplarily, the baffle mechanism 78 includes a baffle storing cavity 98 disposed in the housing 10, a peep-proof baffle 96 disposed in the baffle storing cavity 98, a guide shaft 95 slidably connected to the peep-proof baffle 96, a cable cavity 99 disposed in a lower end wall of the peep-proof baffle 96, symmetrical cable fixed pulleys 92 disposed in left and right end walls of the cable cavity 99, a main fixed pulley 94 disposed in the housing 10, and the flexible cable 93 fixedly connected to the main fixed pulley 94.

Beneficially or exemplarily, the opening and closing mechanism 75 includes a sharpener motor 49 disposed in the lower end wall of the pencil sharpener cavity 42, the sharpener motor 49 is in power connection with a sharpener motor output shaft 44, the sharpener motor output shaft 44 is fixedly connected with a sharpener fixing block 48, the sharpener fixing block 48 is fixedly connected with a rolling blade 45, the right end wall of the pencil sharpener cavity 42 is disposed in the elastic conductive groove 41 and is provided with a power-on guide plate, the desk flip 35 is disposed in the stationery storage cavity 39, the desk flip 35 is fixedly connected with a rotatable rotating link 37, a rubber scrap collecting cavity 36 is disposed below the rotating link 37, the lower end wall of the desk flip 35 is fixedly connected with a metal buckle 58, the buckle cavity 59 is disposed in the buckle fixing shaft 43, the buckle fixing shaft 43 is fixedly connected with a buckle 34, the buckle 34 and the lower end wall of the desk cover buckle cavity 17 are disposed in the buckle spring 38, the upper end wall of the desk cover buckle cavity 17 is slidably connected with a buckle stopper 33, the buckle stopper 33 and the left end wall of the desk cover buckle cavity 17 are disposed in the desk cover lock cavity 17, the buckle stopper 63 and the desk cover lock cavity 17 are disposed in the desk cover lock cavity, the upper end wall is disposed in the desk cover lock cavity is connected with a cable shield spring fixing block 64, the shield spring fixing block 64 is connected with a cable wire rope spring fixing block 64, the shield spring fixing block 64 is disposed in the desk cover fixing block 64, and is connected with a cable wire shield spring reset baffle 64, the pencil is placed in the pencil sharpener cavity 42, the pencil sharpener cavity 42 moves rightwards, the electrified guide plate is powered on the electrotome motor 49 to start output power, after the desk flip 35 is unlocked through identification, the electromagnet 60 is started to attract the buckle spring baffle 63 to approach, so that the desk flip 35 is opened, the desk flip 35 pulls the flexible steel cable 93 to drive the shielding cavity upper end cover 32 to be opened, an examinee can place personal articles, and after the desk flip 35 is closed again, the metal buckle 58 is fixedly clamped by the lock catch 34, so that the sundries storage cavity 18 and the shielding cavity 30 are closed.

Advantageously or exemplarily, the book loading mechanism 76 comprises a book loading motor 56 fixed on the upper end wall of the book loading slider guide 55, the book feeding motor 56 is in power connection with a screw rod 19, the screw rod 19 is in rolling connection with a screw rod sleeve 53, one end of the screw sleeve 53 located in the textbook storage cavity 40 is fixedly connected with a textbook conveying belt wheel 52, the screw sleeve 53 is fixedly connected with a connecting rod rotating shaft 22, the connecting rod rotating shaft 22 is fixedly connected with a book feeding connecting rod 21, the book feeding connecting rod 21 is fixedly connected with a book feeding sliding block 20 which is connected with a book feeding sliding block guide rail 55 in a sliding way, the screw rod sleeve 53 is fixedly connected with a linkage driving lever 24, the linkage driving lever 24 is connected with a driving lever sliding cavity 71 in a sliding way, one end of the linkage deflector rod 24 positioned in the sundries storage cavity 18 is fixedly connected with a book placing plate sliding block 25, the book placing plate sliding block 25 is fixedly connected with a book placing plate connecting rod 26, the book placing plate connecting rod 26 is fixedly connected with a book placing plate 27, the book placing plate 27 is fixedly connected with a rotatable book placing plate connecting shaft 50, a conveyor belt motor 68 is arranged in the right end wall of the conveyor belt cavity 66, the conveyer belt motor 68 is connected with the conveyer belt shaft 67 through power, the textbook conveyer belt 54 is driven by the textbook conveyer belt 52, the screw rod 19 can be driven to rotate by starting the book feeding motor 56, the screw rod 19 rotates to enable the screw rod sleeve 53 to ascend to drive the linkage deflector rod 24 to move upwards, thereby, the book placing plate sliding block 25 is pushed to move upwards to enable the book placing plate 27 to be unfolded, the upper end cover 70 of the storage cavity is opened, the book placing plate 27 is completely unfolded, meanwhile, the upper end cover 70 of the storage cavity is just completely opened, at the moment, the conveyor belt motor 68 is started to convey books onto the book placing plate 27, the book feeding motor 56 is started after the books are taken out, and the book placing plate 27, the upper end cover 70 of the storage cavity and the screw sleeve 53 move downwards simultaneously.

The invention relates to a desk for education and examination, which has the following working procedures:

in the initial state, the desk flip 35 is closed, the elastic conductive groove 41, the buckle return spring 61, the buckle spring 38, the clamp plate return spring 82 and the buckle fixing block 47 are in the relaxed state, the electromagnet 60 is in the non-activated state, the flexible steel cable 93 is in the relaxed state, the book loading slider 20 is positioned at the farthest position from the left to the right, the book placing slider 25 is positioned at the lowest side, the upper end cover 70 of the storage cavity is contacted with the end wall 51 of the textbook storage cavity, the test paper and the magnetic clamp plate 81 are positioned between the tension belt wheel shaft 16 and the test paper conveying rod 87, and the upper end cover 32 of the shielding cavity is contacted with the baffle 29 of the shielding cavity.

If the student is in daily use, firstly, the identity recognition in the desk flip cover 35 is closed, the electromagnet 60 is electrified, the desk flip cover 35 is opened, the book feeding motor 56 is started, the screw rod 19 is driven to rotate, the screw rod sleeve 53 is driven to ascend, the linkage driving rod 24 is driven to move upwards, the book placing plate sliding block 25 is driven to move upwards, the book placing plate connecting rod 26 and the book placing plate 27 are driven to expand rightwards, the storage cavity upper end cover 70 is driven to rotate around the shaft, the storage cavity upper end cover 70 is driven to open upwards, the book conveying belt wheel 52 is made to be horizontal with the book placing plate 27, then the book feeding motor 56 is stopped, the conveying belt motor 68 is started, the conveying belt sleeve 53 is driven to move downwards, the book placing plate connecting rod 26 and the book placing plate 27 are driven to rotate, the book conveying belt wheel 52 is driven to rotate, the book conveying belt 54 is driven to move rightwards, required books are prepared in advance, then taken away, the book feeding motor 56 is started, the conveying belt motor 68 is stopped, the screw rod sleeve 53 is driven to move downwards, the book placing plate connecting rod 26 and the book placing plate 27 is made to form a sealed cavity, and the book storing cavity upper end wall 51.

If the desk cover 35 is used for examination, identification in the desk cover 35 is started, the electromagnet 60 can be started only through identification, the electromagnet 60 is electrified to unlock, so that an examinee can open the desk cover 35, the flexible steel cable 93 drives the shielding cavity upper end cover 32, so that the examinee can store personal articles, meanwhile, the desk cover 35 successfully identifies the book feeding motor 56 to stop, so that the examinee cannot open the storage cavity upper end cover 70, after the examinee closes the desk cover 35, the electromagnet 60 is powered off and the power-on time is counted down, the counting down is finished, the electromagnet 60 is electrified again to open the desk plate, and the examinee is reminded of how long the examinee is away from the examination end, after the stationery in the examination storage cavity 39 can be used by the examinee before examination, if necessary, a pencil can be placed in the pencil sharpener cavity 42, eraser crumbs can be cleared into the eraser crumbs collection cavity 36, and eraser crumbs can be automatically collected each time, and the examination of the next batch of examinees is prepared.

After the examination starts, the splint lead motor 89 is started to drive the test paper conveying belt 11 to move upwards, so as to drive the test paper bag sealed with the test paper to move upwards, so as to drive the test paper to reach the upper end, so that the buckle 79 with the electromagnet pops out and is clamped, meanwhile, the flexible steel cable 93 is fixedly connected to the test paper conveying shaft 85, the splint lead motor 89 drives the test paper conveying belt 11, so that the flexible steel cable 93 is wound on the test paper conveying shaft 85, so that the peep-proof baffle 96 moves upwards along the guide shaft 95, so that the examinee can only see his own test paper to take the test, wait for the end of the examination, the examinee needs to put the test paper into the test paper bag within a certain time, the examination end electromagnet 60 is started, the test paper conveying motor 88 is started to drive the test paper conveying belt 11 to move downwards, so that the peep-proof baffle 96 moves downwards, when the test paper bag moves to the tensioning belt 16, the test paper conveying motor 88 stops, the desk cover 35 can be opened, so that the examinee leaves after taking private articles are taken, the camera 83 detects that the examinee leaves the examination room and stops recording and the video of the examinee, the examination paper bag in the examination room 28 is taken, and the examination room is taken, so that the old person does not need to take the examination paper in the examination paper bag and the examination paper bag to take the examination paper, and the examination paper bag in the examination room, and the old examination paper bag is not lack of the old person is not needed to take the examination paper bag.

The beneficial effects of the invention are: the height of the stop of the transmission belt can be controlled by utilizing the screw rod sliding block, the self-locking can be realized by depending on the screw thread during the stop, no additional starting and stopping device is needed, the screw rod sliding block can enable the lifting and the falling to be more stable, the required books are conveyed to the designated height through the screw rod sliding block, the transmission belt runs, the books are conveyed to the designated platform, and the situation that the books are disordered and difficult to find is reduced;

the test paper transportation area of utilization design can receive and dispatch the test paper voluntarily to make every examinee can both take the test paper simultaneously, can drive the peep-proof board and rise when sending out the test paper, block other examinee's sight, also can let self more be absorbed in simultaneously and take the examination.

It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. All falling within the scope of protection of the present invention. The protection scheme of the invention is subject to the appended claims.

Claims

1. The utility model provides an education examination desk, includes casing and desk flip, its characterized in that: the desk turning cover is internally provided with a pencil sharpener cavity and a stationery storage cavity, the right end wall of the stationery storage cavity is internally provided with a rubber scrap collecting cavity, the lower end wall of the pencil sharpener cavity is internally provided with a sundries storage cavity, the lower end wall of the sundries storage cavity is provided with a textbook storage cavity, the upper end wall of the textbook storage cavity is internally provided with a driving lever sliding cavity, the right end wall of the sundries storage cavity is internally provided with a shielding cavity, the lower end wall of the textbook storage cavity is internally provided with a book feeding transmission cavity, the lower end wall of the book feeding transmission cavity is internally provided with a test paper storage cavity, the right end wall of the test paper storage cavity is internally provided with an operation cavity, the lower end wall of the test paper storage cavity is internally provided with a storage area, the upper end wall of the shell is internally provided with a clamping plate cavity, the upper end wall of the clamping plate cavity is internally provided with a pair of front and back symmetrical storage area connecting rod supporting plate connecting rod rotating shafts, the lower end wall of the desk turning cover is internally provided with a front and back symmetrical clamping cavity, the clamping spring cavity is internally provided with a front and back opening and closing mechanism, the desk turning cover is internally provided with a book feeding mechanism and receiving and sending and receiving mechanism, the paper mechanism and sending mechanism can be used for carrying out classified study and picking up books;

the examination paper receiving and sending mechanism comprises a baffle mechanism capable of enabling an examination baffle to ascend and descend, a test paper conveying motor is fixedly connected to the right end wall of the operation cavity, the test paper conveying motor is in power connection with a test paper conveying shaft, the test paper conveying shaft is connected with a tensioning belt wheel through a test paper conveying belt, the tensioning belt wheel is connected with a test paper conveying rod located in the lower end wall of the operation cavity through the test paper conveying belt, the test paper conveying rod is connected with the tensioning belt wheel located in the left end wall through the test paper conveying belt, the tensioning belt wheel is connected with a magnetic clamping plate located in a desk flip through the test paper conveying belt, lead holes which are bilaterally symmetrical are arranged in the upper end wall of the magnetic clamping plate and are connected with lead motor shafts through flexible steel cables, the lead motor shafts are fixedly connected with a clamping plate lead collecting baffle of a lead motor, and the test paper conveying motor and the clamping plate lead motor can drive the test paper conveying belt to move up and down in the test paper conveying cavity, so that the test paper is driven and the test paper is received and sent;

the baffle mechanism comprises a baffle storage cavity arranged in the casing, an anti-peeping baffle is arranged in the baffle storage cavity, the anti-peeping baffle is connected with a guide shaft in a sliding manner, the lower end wall of the anti-peeping baffle is internally provided with steel cable fixed pulleys symmetrically arranged in the left end wall and the right end wall, a main fixed pulley is arranged in the casing, and the main fixed pulley is fixedly connected with the flexible steel cable;

the pencil sharpener comprises a pencil sharpener cavity, and is characterized in that the opening and closing mechanism comprises a sharpener motor arranged in the lower end wall of the pencil sharpener cavity, the sharpener motor is in power connection with a sharpener motor output shaft, the sharpener motor output shaft is fixedly connected with a sharpener fixing block, the sharpener fixing block is fixedly connected with a rolling blade, an electrifying guide plate is arranged in an elastic conductive groove in the right end wall of the pencil sharpener cavity, a stationery storage cavity is arranged in a desk flip cover, the desk flip cover is fixedly connected with a rotatable rotating connecting rod, a eraser scrap collecting cavity is arranged below the rotating connecting rod, and a metal buckle is fixedly connected in the lower end wall of the desk flip cover;

a buckle fixing shaft is arranged in the buckle cavity, the buckle fixing shaft is fixedly connected with a buckle, a buckle spring is arranged in the lower end wall of the buckle and table cover buckle cavity, a buckle stop block is connected in the upper end wall of the table cover buckle cavity in a sliding manner, a buckle spring is arranged in the buckle stop block and the left end wall of the table cover buckle cavity, and a buckle spring cavity is arranged in the upper end wall of the table cover buckle cavity;

an electromagnet is arranged in the upper end wall of the buckle spring cavity, a buckle spring baffle plate which is in sliding connection with the buckle spring cavity is arranged in the buckle spring cavity, a buckle reset spring is arranged between the buckle spring baffle plate and the upper end wall of the buckle spring cavity, a positioning shaft sleeve is arranged around the buckle reset spring, and a buckle ejector rod is fixedly connected with the buckle spring baffle plate;

the desk turnover cover is fixedly connected with a flexible steel cable, the flexible steel cable is fixedly connected with a shielding cavity fixing block, and the shielding cavity fixing block is fixedly connected with a shielding cavity upper end cover;

the book feeding mechanism comprises a book feeding sliding block guide rail, a book feeding motor is fixed on the upper end wall of the book feeding sliding block guide rail, the book feeding motor is in power connection with a screw rod, the screw rod is in rolling connection with a screw rod sleeve, one end, located in a book storage cavity, of the screw rod sleeve is fixedly connected with a book conveying belt wheel, the screw rod sleeve is fixedly connected with a connecting rod rotating shaft, the connecting rod rotating shaft is fixedly connected with a book feeding connecting rod, the book feeding connecting rod is fixedly connected with a book feeding sliding block which is in sliding connection with the book feeding sliding block guide rail, and the screw rod sleeve is fixedly connected with a linkage driving lever;

the linkage driving rod is connected to the driving rod sliding cavity in a sliding mode, one end, located in the sundries storage cavity, of the linkage driving rod is fixedly connected with a book placing plate sliding block, the book placing plate sliding block is fixedly connected with a book placing plate connecting rod, the book placing plate connecting rod is fixedly connected with a book placing plate, the book placing plate is fixedly connected with a rotatable book placing plate connecting shaft, and a conveyor belt motor is arranged in the right end wall of the conveyor belt cavity; when the desk is in an initial state, the desk flip cover is closed, the elastic conductive groove, the buckle return spring, the buckle spring, the clamping plate return spring and the buckle fixing block are in a relaxed state, the electromagnet is in an un-started state, the flexible steel cable is in a relaxed state, the book feeding sliding block is positioned at the position farthest away from the left and the right, the book placing sliding block is positioned at the lowest side, the upper end cover of the storage cavity is contacted with the end wall of the textbook storage cavity, the test paper and the magnetic clamping plate are positioned between the tension belt wheel shaft and the test paper conveying rod, and the upper end cover of the shielding cavity is contacted with the baffle of the shielding cavity;

if the student daily uses the student daily use, firstly, the identity recognition in the desk flip is closed, the electromagnet is electrified, the desk flip is opened, the book feeding motor is started, so that the screw rod is driven to rotate, the screw rod sleeve is driven to ascend, the linkage deflector rod is driven to move upwards, the book placing plate sliding block is driven to move upwards, the book placing plate connecting rod and the book placing plate are driven to unfold rightwards, the upper end cover of the storage cavity is driven to rotate around the shaft, the upper end cover of the storage cavity is driven to open upwards, the book conveying belt wheel is horizontal to the book placing plate, then the book feeding motor is stopped, the conveying belt motor is started, the conveying belt shaft is driven to rotate, the book conveying belt wheel is driven to rotate, the book conveying belt is driven to move rightwards, so that required books are prepared in advance, then the books are taken away, the book feeding motor is started, the conveying belt motor is stopped, the screw rod sleeve is driven to move downwards, the book placing plate connecting rod and the book placing plate are put down, so that the upper end cover of the storage cavity and the end wall of the book storing cavity and the book placing cavity form a sealed cavity;

if the device is used for the examination, the identity recognition in the desk flip cover is started, the electromagnet can be started only through the identity recognition, the electromagnet is electrified and unlocked, so that an examinee can open the desk flip cover, the flexible steel cable drives the upper end cover of the shielding cavity, the examinee stores private articles, meanwhile, the desk flip cover successfully recognizes and the book feeding motor stops, so that the examinee cannot open the upper end cover of the storage cavity, after the examinee closes the desk flip cover, the electromagnet is powered off and the electricity-on time is counted down, the counting down is finished, the electromagnet is electrified again to open the desk plate, the examinee is reminded of how long the examinee stays away from the end of the examination, after the examinee checks the stationery in the stationery storage cavity before the examination, if a pencil needs to be put into the pencil sharpener cavity, the eraser chips are cleared into the eraser chip collecting cavity, and the eraser chips can be automatically collected every time when being opened and closed, and the examinee is prepared for the next batch of examinee;

after the examination begins, the splint lead motor is started to drive the test paper conveying belt to move upwards, so that the test paper bag sealed with the test paper is driven to move upwards, so that the test paper is driven to reach the upper end, the buckle with the electromagnet is popped out and clamped, meanwhile, the flexible steel cable is fixedly connected to the test paper conveying shaft, the splint lead motor drives the test paper conveying belt, so that the flexible steel cable is wound on the test paper conveying shaft, so that the peep-proof baffle moves upwards along the guide shaft, so that an examinee can only see the own test paper to take the test, wait for the end of the examination, the examinee needs to pack the test paper into the test paper bag within a certain time, the examination end electromagnet is started, the test paper conveying motor is started to drive the test paper conveying belt to move downwards, so that the peep-proof baffle moves downwards, when the test paper bag moves to the pull-up belt shaft, the test paper conveying motor stops, the flip is opened, so that the examinee leaves after taking away the personal article, the camera detects that the exit of the examination is stopped and the test paper bag is stored in the examination paper bag, and the examination paper bag is taken away, and the examination paper is not taken away from the examination paper bag, and the examination paper bag is taken away.