CN114521755A

CN114521755A - Examination desk with high-efficient peep-proof function

Info

Publication number: CN114521755A
Application number: CN202210165303.3A
Authority: CN
Inventors: 李光椿
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-05-24

Abstract

The invention relates to an examination desk, in particular to an examination desk with a high-efficiency peep-proof function. The invention provides an examination desk which occupies less classroom space and is convenient for proctoring teachers to take examination papers away in a unified way and has a high-efficiency peep-proof function. An examination desk with a high-efficiency peep-proof function comprises: a frame body is arranged between the left side and the right side of the upper part of the support leg; the mounting plate is arranged at the top of the frame body; the middle of the rear side of the top of the mounting plate is provided with a covering frame used for hiding the test paper; and the shielding mechanism is arranged on the rear side of the frame body and surrounds the left side, the right side and the rear side of the mounting plate. When the test paper is answered, the test paper is placed on the front side of the top of the mounting plate, and the answered paper surface is hidden in the covering frame after the answer of a part of the test paper is finished, so that the answered part is prevented from being peeped, and the effect of high efficiency peep prevention is achieved.

Description

Examination desk with high-efficient peep-proof function

Technical Field

The invention relates to an examination desk, in particular to an examination desk with a high-efficiency peep-proof function.

Background

When the examination, in order to guarantee the fairness and the authenticity of the examination, the invigilator needs to monitor the examinees all the time, the examinees in the classroom are numerous, and even if the invigilator continuously makes rounds of examinations, the invigilator can not avoid the behavior of peeping and cheating in some students with impure ideas.

Patent application CN212590995U discloses an examination desk with anti-cheating function, which comprises four desk legs, wherein four of the desk legs are provided with a box body, and the box body is provided with a desktop structure; the desktop structure includes: the two sliding grooves, the four sliding strips, the two table panels and the supporting part; the two sliding grooves are symmetrically arranged on the upper wall surface of the box body, the four sliding strips are inserted into the two sliding grooves, and the two table panels are arranged on the opposite side wall surfaces of the four sliding strips. The two desktop boards can move relatively, the distance between the two desktop boards and the same seat is increased, the examinees are prevented from interfering with each other, the learning and answering efficiency is guaranteed, the examination attacks to other examinees are prevented, and when the two desktop boards move to the outer sides, the desktop boards are separated from the desk holes, so that the examinees are prevented from reading textbooks during examination. The examination desk achieves the peep-proof effect by prolonging the distance between the desks, and occupies the space of a classroom relatively.

Based on the defects in the prior art, the examination desk which occupies less classroom space and is convenient for the proctor to take away the examination papers in a unified way and has a high-efficiency peep-proof function is designed.

Disclosure of Invention

In order to overcome the defect that the existing examination desk with the anti-cheating function occupies the space of a classroom, the technical problem to be solved is as follows: the examination desk with the efficient peep-proof function reduces the occupied classroom space and is convenient for the invigilator to take the examination papers away in a unified mode.

The technical scheme of the invention is as follows: an examination desk with a high-efficiency peep-proof function comprises:

a frame body is arranged between the left side and the right side of the upper part of the support leg;

the mounting plate is arranged at the top of the frame body;

the middle of the rear side of the top of the mounting plate is provided with a covering frame used for hiding the test paper;

the shielding mechanism is arranged on the rear side of the frame body and surrounds the left side, the right side and the rear side of the mounting plate;

the pushing mechanism is arranged in the covering frame and used for pushing the shielding mechanism to operate, and the pushing mechanism is connected with the shielding mechanism.

In one embodiment, the shutter mechanism comprises:

the rear side of the bottom of the frame body is provided with a first support;

the driving motor is arranged on the rear side of the first bracket;

the end part of an output shaft of the driving motor is connected with a screw which is rotatably connected with the mounting plate;

the lower part of the screw rod is provided with a threaded seat in a threaded manner;

the rear side of the threaded seat is provided with a first shielding plate used for shielding the test paper;

the left side and the right side of the rear part of the frame body are provided with first sliding rails connected with the first shielding plates in a sliding mode.

In one embodiment, the pushing mechanism comprises:

the push block is connected between the left side and the right side in the covering frame in a sliding manner;

the first springs are connected between the left side and the right side of the rear part of the push block and the covering frame;

the left side and the right side of the upper part behind the frame body are respectively provided with a second bracket;

the rear part of the second bracket is respectively and rotatably provided with a first reel;

the left side and the right side of the rear portion of the push block are both connected with first pull ropes located on the inner sides of the first springs, and the first pull ropes all bypass the first reels on the same side and are connected with the rear upper portion of the first baffle plate.

In one embodiment, the test paper device further comprises a covering mechanism for preventing the test paper from being blown away by wind, and the covering mechanism comprises:

the left side and the right side of the top of the mounting plate are both provided with a second sliding rail;

the sliding blocks are arranged on the front sides of the second sliding rails in a sliding mode;

the rear side of the top of the mounting plate is symmetrically provided with third supports positioned on the inner sides of the second slide rails in the left-right direction, and rotating rods are rotatably connected between the third supports;

the left side and the right side of the front part of the shielding cloth are connected with the sliding blocks on the same side;

the left side and the right side of the top of the mounting plate are respectively provided with a third slide rail, and the third slide rails are positioned on the inner side of the third support;

racks are arranged on the front sides of the third sliding rails in a sliding manner;

the left side and the right side of the rotating rod are both provided with straight gears which are one-way gears;

the left side and the right side of the rotating rod are wound with scroll springs, the inner ends of the scroll springs are connected with the rotating rod, and the outer ends of the scroll springs are connected with a third support at the same side;

the inner sides of the front parts of the racks are provided with connecting blocks which are connected with the push block;

and a second spring is connected between the sliding block and the rear part of the second sliding rail at the same side.

In one of them embodiment, still include the tilting mechanism that prevents high child student's peeping cheating, the tilting mechanism includes:

the left side and the right side of the rear upper part of the first shielding plate are provided with fixed blocks;

the second baffle plates are rotatably connected between the fixed blocks;

the left side and the right side of the second shielding plate are respectively wound with a first torsion spring, the inner end of each first torsion spring is connected with the second shielding plate, and the outer end of each first torsion spring is connected with the fixing block on the same side;

the left side and the right side of the second shielding plate are respectively provided with a convex block, and the convex blocks are positioned on the inner side of the first torsion spring;

the left side and the right side of the rear lower part of the frame body are respectively provided with a fourth bracket;

the lower parts of the fourth brackets are respectively and rotatably provided with a second reel;

the second pull ropes are wound on the second reel and are connected with the lugs on the same side;

and the second torsion springs are wound on the second reels, the inner ends of the second torsion springs are connected with the fourth support at the same side, and the outer ends of the second torsion springs are connected with the second reels at the same side.

In one of them embodiment, still include the stock stop of effect is prevent wind in the reinforcing, the stock stop includes:

the front side of the mounting plate is movably provided with a baffle plate for blocking the front part of the test paper; the bottom of the material baffle plate is provided with an arc-shaped block;

and the third spring is connected between the left side and the right side of the arc-shaped block and the mounting plate, and the sliding blocks are in contact fit with the upper part of the arc-shaped block.

In one embodiment, the lighting device further comprises a lighting mechanism for enhancing light, wherein the lighting mechanism comprises:

the middle of the second shielding plate is provided with a fourth sliding rail;

the fourth sliding rail is provided with an illuminating lamp in a sliding manner;

the handle is arranged in the middle of the illuminating lamp.

In one embodiment, the first shielding plate is U-shaped, and the first shielding plate encloses the left side, the right side and the rear side of the frame body.

The invention has the beneficial effects that: 1. the push block blocks the front side of the covering frame to achieve the dustproof effect and prevent a large amount of dust from entering the covering frame;

2. before answering, the invigilator controls an output shaft of the driving motor to drive the screw rod to rotate forwards, so that the first shielding plate surrounds the left side, the right side and the rear side of the mounting plate, and the answering writing is prevented from being peeped;

3. when the test paper is answered, the test paper is placed on the front side of the top of the mounting plate, and the answered paper surface on the test paper is hidden in the covering frame after answering a part of the paper, so that the answered part is prevented from being peeped, and the effect of high-efficiency peep prevention is achieved;

4. the invigilator controls an output shaft of the driving motor to drive the screw rod to rotate reversely, the first spring resets to drive the push block to slide forwards, and the test paper is ejected forwards by the push block, so that the invigilator can conveniently and uniformly take away the test paper;

5. under the action of the second spring reset, the sliding block slides forwards to drive the shielding cloth to be unfolded and shield the upper part of the test paper, so that the test paper is prevented from being blown to the ground by wind in the process of uniformly receiving the test paper by the invigilator;

6. the first shielding plate moves upwards to enable the second shielding plate to turn upwards for a fixed angle, and the second shielding plate shields the upper part of the test paper, so that the peeping of high students is avoided, and the peeping prevention effect is further realized in all directions;

7. when the sliding block slides forwards to be in contact with the arc-shaped block, the sliding block extrudes the arc-shaped block to move upwards, and the material baffle plate blocks the front side of the test paper, so that the shielding and windproof effect is further achieved;

8. the student can turn on the light and throw light on when the answer sheet, conveniently sees the answer clearly and carries out the answer sheet, drives the light horizontal slip through the handle, conveniently adjusts the light to suitable illumination position.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of a first part of the present invention.

Fig. 3 is a schematic perspective view of a second embodiment of the present invention.

Fig. 4 is a perspective view of a second part of the present invention.

Fig. 5 is a schematic perspective view of the shielding mechanism of the present invention.

FIG. 6 is a schematic perspective view of a shielding mechanism according to the present invention.

Fig. 7 is a schematic perspective view of the pushing mechanism of the present invention.

Fig. 8 is a schematic partial perspective view of the pushing mechanism of the present invention.

Fig. 9 is a schematic perspective view of the covering mechanism of the present invention.

Fig. 10 is a schematic perspective view of a part of the covering mechanism of the present invention.

Fig. 11 is a schematic perspective view of the turnover mechanism of the present invention.

Fig. 12 is a schematic perspective view of a first part of the turnover mechanism of the present invention.

Fig. 13 is a schematic perspective view of a second part of the turnover mechanism of the present invention.

Fig. 14 is a schematic perspective view of the stock stop of the present invention.

Fig. 15 is a schematic partial perspective view of the striker mechanism of the present invention.

Fig. 16 is a perspective view of the illumination mechanism of the present invention.

Description of reference numerals: 1_ leg, 2_ frame, 3_ mounting plate, 4_ cover frame, 5_ cover mechanism, 51_ first bracket, 52_ driving motor, 53_ screw, 54_ screw seat, 55_ first cover plate, 56_ first slide rail, 6_ pushing mechanism, 61_ push block, 62_ first spring, 63_ second bracket, 64_ first reel, 65_ first pull rope, 7_ cover mechanism, 71_ second slide rail, 72_ slide block, 73_ third bracket, 74_ cover cloth, 75_ third slide rail, 76_ rack, 77_ spur gear, 78_ scroll spring, 79_ connecting block, 710_ second spring, 8_ turnover mechanism, 81_ fixed block, 82_ second cover plate, 83_ first torsion spring, 84_ lug, 85_ fourth bracket, 86_ second, 87_ second torsion spring, reel 88_ second torsion spring, 9_ striker, 91_ arc block, 92_ striker plate, 93_ third spring, 10_ lighting mechanism, 101_ fourth slide rail, 102_ lighting lamp, 103_ grip.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

Example 1

The utility model provides an examination desk with high-efficient peep-proof function, as shown in figure 1, figure 2, figure 3 and figure 4, including stabilizer blade 1, framework 2, mounting panel 3, cover frame 4, shelter from mechanism 5 and pushing mechanism 6, be equipped with framework 2 between the 1 upper portion left and right sides of stabilizer blade, framework 2 top is equipped with mounting panel 3, be equipped with in the middle of the 3 top rear sides of mounting panel and cover frame 4, cover frame 4 in order to hide the paper, framework 2 rear sides are equipped with shelters from mechanism 5, be equipped with pushing mechanism 6 in the frame 4, pushing mechanism 6 promotes shelters from the mechanism 5 and operates, pushing mechanism 6 with shelter from mechanism 5 and be connected.

As shown in fig. 5 and 6, the shielding mechanism 5 includes a first bracket 51, a driving motor 52, a screw 53, a threaded seat 54, a first shielding plate 55 and a first slide rail 56, the first bracket 51 is disposed on the rear side of the bottom of the frame 2, the driving motor 52 is mounted on the rear side of the first bracket 51, the screw 53 is connected to the end of the output shaft of the driving motor 52, the top of the screw 53 is rotatably connected to the mounting plate 3, the threaded seat 54 is disposed on the lower portion of the screw 53 in a threaded manner, the first shielding plate 55 is disposed on the rear side of the threaded seat 54, the first shielding plate 55 is U-shaped, the first shielding plate 55 surrounds the left and right sides and the rear side of the frame 2, the first shielding plate 55 is used for shielding the test paper, the first slide rails 56 are disposed on the left and right sides of the rear portion of the frame 2, and the first slide rails 56 are slidably connected to the first shielding plate 55.

As shown in fig. 7 and 8, the pushing mechanism 6 includes a pushing block 61, a first spring 62, a second bracket 63, a first reel 64 and a first pull rope 65, the pushing block 61 is slidably connected between the left and right sides in the cover frame 4, the first spring 62 is connected between the left and right sides of the rear portion of the pushing block 61 and the cover frame 4, the second bracket 63 is arranged on the left and right sides of the upper rear portion of the frame 2, the first reel 64 is rotatably arranged on the rear portion of the second bracket 63, the first pull rope 65 is connected to the left and right sides of the rear portion of the pushing block 61, the first pull rope 65 is located inside the first spring 62, and the first pull rope 65 is connected to the upper rear portion of the first shutter 55 by bypassing the first reel 64 on the same side.

In the examination, in order to avoid the students being peeped and copied during answering the paper, the examination desk with the high-efficiency peep-proof function can be used, initially, the push block 61 blocks the front side of the covering frame 4 to achieve the dustproof effect, so that a large amount of dust is prevented from entering the covering frame 4, immediately before answering the paper, the supervising teacher controls the output shaft of the driving motor 52 to drive the screw 53 to rotate forward, so as to drive the screw seat 54 to move upward, further drive the first shielding plate 55 to slide upward, so that the first shielding plate 55 surrounds the left side, the right side and the rear side of the mounting plate 3, so as to avoid being peeped during answering and writing, when the first shielding plate 55 slides upward, the push block 61 is pulled by the first pull rope 65 to slide backward into the covering frame 4, the first spring 62 is compressed, the students can place necessary examination articles in the frame body 2, when answering the paper, the paper is placed on the front side of the top of the mounting plate 3, and a part of the paper which is answered is placed in the covering frame 4, the answering part is prevented from being peeped, so that the effect of high efficiency peep prevention is achieved, after the whole test paper is answered, students hide the whole test paper in the covering frame 4, after all students leave the field after examination, the supervising teacher controls the output shaft of the driving motor 52 to drive the screw rod 53 to rotate reversely, so that the threaded seat 54 is driven to move downwards, the first shielding plate 55 is driven to slide downwards, the left side, the right side and the rear side of the frame body 2 are surrounded by the first shielding plate 55, when the first shielding plate 55 slides downwards, the first pull rope 65 is loosened, the first spring 62 is reset to drive the push block 61 to slide forwards, the test paper is pushed forwards by the push block 61, and the supervising teacher can conveniently receive the test paper in a unified mode.

Example 2

Based on embodiment 1, as shown in fig. 3, 9 and 10, the test paper testing device further includes a covering mechanism 7, the covering mechanism 7 prevents the test paper from being blown away by wind, the covering mechanism 7 includes a second slide rail 71, a slide block 72, a third bracket 73, a shielding cloth 74, a third slide rail 75, a rack 76, a spur gear 77, a spiral spring 78, a connecting block 79 and a second spring 710, the second slide rail 71 is disposed on the left and right sides of the top of the mounting plate 3, the slide block 72 is slidably disposed on the front side of the second slide rail 71, the third brackets 73 are symmetrically disposed on the left and right sides of the top of the mounting plate 3, the third brackets 73 are disposed on the inner sides of the second slide rail 71, a rotating rod is rotatably connected between the third brackets 73, the shielding cloth 74 is wound on the rotating rod, the shielding cloth 74 has a wind-proof function, the left and right sides of the front of the shielding cloth 74 are connected to the slide block 72 on the same side, the left and right sides of the top of the mounting plate 3 are disposed with the third slide rails 75, the third slide rails 75 are located on the inner side of the third support 73, racks 76 are arranged on the front sides of the third slide rails 75 in a sliding mode, straight gears 77 are arranged on the left and right sides of the rotating rod, the straight gears 77 are one-way gears, the racks 76 move backwards and are meshed with the straight gears 77 on the same side, scroll springs 78 are wound on the left and right sides of the rotating rod, the inner ends of the scroll springs 78 are connected with the rotating rod, the outer ends of the scroll springs 78 are connected with the third support 73 on the same side, connecting blocks 79 are arranged on the inner sides of the front portions of the racks 76, the connecting blocks 79 are connected with the push block 61, and second springs 710 are connected between the sliding blocks 72 and the rear portions of the second slide rails 71 on the same side.

When the pushing block 61 slides backwards, the pushing block 61 drives the connecting block 79 to move backwards so as to drive the rack 76 to slide backwards, when the rack 76 is meshed with the straight gear 77, the straight gear 77 drives the rotating rod to wind the shielding cloth 74, the scroll spring 78 is twisted and deformed, the shielding cloth 74 drives the sliding block 72 to slide backwards, the second spring 710 is compressed, when the pushing block 61 slides forwards, the pushing block 61 drives the connecting block 79 to move forwards so as to drive the rack 76 to slide forwards, the rack 76 drives the straight gear 77 to idle, when the rack 76 slides forwards until being not meshed with the straight gear 77 any more, the scroll spring 78 resets to drive the rotating rod to unwind the shielding cloth 74, under the reset action of the second spring 710, the sliding block 72 slides forwards to drive the shielding cloth 74 to unfold and shield the test paper, and the test paper is prevented from being blown to the ground by wind during the uniform paper collection process of the invigills.

As shown in fig. 3, 11, 12 and 13, the turnover mechanism 8 is further included, the turnover mechanism 8 prevents the students from peeping the cheating, the turnover mechanism 8 includes a fixing block 81, a second shielding plate 82, a first torsion spring 83, a protrusion 84, a fourth bracket 85, a second reel 86, a second pull rope 87 and a second torsion spring 88, the fixing block 81 is disposed on the left and right sides of the rear upper portion of the first shielding plate 55, the second shielding plate 82 is rotatably connected between the fixing blocks 81, the second shielding plate 82 can shield the upper portion of the test paper, the first torsion spring 83 is wound on the left and right sides of the second shielding plate 82, the inner end of the first torsion spring 83 is connected with the second shielding plate 82, the outer end of the first torsion spring 83 is connected with the fixing block 81 on the same side, the protrusion 84 is disposed on the left and right sides of the second shielding plate 82, the protrusion 84 is disposed on the inner side of the first torsion spring 83, the fourth bracket 85 is disposed on the left and right sides of the rear lower portion of the frame 2, the lower portions of the fourth brackets 85 are respectively rotatably provided with a second reel 86, second pull ropes 87 are wound on the second reels 86, the second pull ropes 87 are connected with the lugs 84 on the same side, second torsion springs 88 are wound on the second reels 86, the inner ends of the second torsion springs 88 are connected with the fourth brackets 85 on the same side, and the outer ends of the second torsion springs 88 are connected with the second reels 86 on the same side.

When the first shielding plate 55 moves upward, the first shielding plate 55 drives the fixing block 81, the second shielding plate 82, the first torsion spring 83 and the projection 84 to move upward integrally, the second reel 86 drives the projection 84 to turn over forward and upward through the second pull rope 87, so as to drive the second shielding plate 82 to turn over forward and upward for a fixed angle, the first torsion spring 83 is twisted and deformed, after the second shielding plate 82 turns over forward and upward for a fixed angle, the first shielding plate 55 continues to drive the fixing block 81, the second shielding plate 82, the first torsion spring 83 and the projection 84 to move upward, the projection 84 drives the second reel 86 to rotate through the second pull rope 87, and the second torsion spring 88 is twisted and deformed, so that the second shielding plate 82 shields the upward when the examinee answers the examination paper, the high-child peeps the examination paper, the effect of preventing peeping is further realized in all directions, and when the first shielding plate 55 moves downward, the first shielding plate 55 drives the fixing block 81, the second shielding plate 82, the first shielding plate 82, the second shielding plate 82, the first shielding plate 82, the second shielding plate 82, the second shielding plate, and the second shielding plate 82, the second shielding plate, and the second shielding plate 82, and the third shielding plate, and fourth shielding plate, and the third shielding plate, and fourth, The second shutter 82, the first torsion spring 83 and the projection 84 move downward integrally, the second torsion spring 88 is reset to drive the second reel 86 to rotate reversely, the first torsion spring 83 is reset to drive the second shutter 82 to turn backwards and downwards, and the projection 84 moves along with the second torsion spring.

As shown in fig. 3, 14 and 15, the wind-proof structure further comprises a material blocking mechanism 9, the material blocking mechanism 9 can enhance the wind-proof effect, the material blocking mechanism 9 comprises an arc-shaped block 91, a material blocking plate 92 and a third spring 93, the material blocking plate 92 is arranged on the front side of the mounting plate 3 in a sliding mode, the arc-shaped block 91 is arranged at the bottom of the material blocking plate 92, the third spring 93 is connected between the left side and the right side of the arc-shaped block 91 and the mounting plate 3, and the sliding blocks 72 are in contact fit with the upper portion of the arc-shaped block 91.

When slider 72 backward slip and arc piece 91 contactless, third spring 93 that is in compression state resets and drives arc piece 91 downstream, thereby drive striker plate 92 lapse, be convenient for the student can the answer paper afterwards, when slider 72 lapse and arc piece 91 contact, slider 72 extrusion arc piece 91 rebound, thereby drive striker plate 92 lapse, third spring 93 is compressed, striker plate 92 blocks the test paper front side, further reach and shelter from windproof effect, when invigilator needs to take out the test paper, only need slightly promote slider 72 backward, make it and arc piece 91 contactless can.

As shown in fig. 3 and 16, the examination paper further comprises an illuminating mechanism 10, the illuminating mechanism 10 is used for enhancing light rays during examination paper examination, the illuminating mechanism 10 comprises a fourth slide rail 101, an illuminating lamp 102 and a handle 103, the fourth slide rail 101 is arranged in the middle of the second shielding plate 82, the illuminating lamp 102 is arranged on the fourth slide rail 101 in a sliding manner, and the handle 103 is arranged in the middle of the illuminating lamp 102.

When second shielding plate 82 overturns fixed angle to the upper front, because the test paper is surrounded, light is dim, therefore the student can open light 102 and throw light on when the answer sheet, conveniently sees the answer clearly and carry out the answer sheet, and the student still can drive light 102 horizontal slip through handle 103 to this is adjusted light 102 to suitable illumination position.

It should be understood that this example is only for illustrating the present invention and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

Claims

1. An examination desk with high-efficient peep-proof function, its characterized in that includes:

a frame body (2) is arranged between the left side and the right side of the upper part of the support leg (1);

the mounting plate (3) is arranged at the top of the frame body (2);

the middle of the rear side of the top of the mounting plate (3) is provided with a covering frame (4) used for hiding the test paper;

the shielding mechanism (5) is arranged at the rear side of the frame body (2) and surrounds the left side, the right side and the rear side of the mounting plate (3);

the pushing mechanism (6) is arranged in the covering frame (4) and used for pushing the covering mechanism (5) to operate, and the pushing mechanism (6) is connected with the covering mechanism (5).

2. The examination desk with the high-efficiency peep-proof function according to claim 1, wherein the shielding mechanism (5) comprises:

the first bracket (51) is arranged on the rear side of the bottom of the frame body (2);

the driving motor (52) is installed on the rear side of the first bracket (51);

a screw (53) rotatably connected to the mounting plate (3) is connected to an end of an output shaft of the drive motor (52);

the lower part of the screw rod (53) is provided with a thread seat (54) in a thread way;

the rear side of the threaded seat (54) is provided with a first shielding plate (55) used for shielding the test paper;

the left side and the right side of the rear part of the frame body (2) are provided with first sliding rails (56) which are connected with the first shielding plates (55) in a sliding manner.

3. An examination desk with high peep-proof function according to claim 2, wherein the pushing mechanism (6) comprises:

the push block (61) is connected between the left side and the right side in the covering frame (4) in a sliding way;

the first spring (62) is connected between the left side and the right side of the rear part of the push block (61) and the covering frame (4);

the left side and the right side of the upper rear part of the frame body (2) are provided with second brackets (63);

the rear parts of the first reels (64) and the second brackets (63) are respectively provided with the first reels (64) in a rotating mode;

the left side and the right side of the rear part of the push block (61) are connected with first pull ropes (65) positioned on the inner side of the first spring (62), and the first pull ropes (65) are connected with the rear upper part of the first baffle plate (55) by bypassing the first reel (64) on the same side.

4. The examination desk with the efficient peep-proof function according to claim 3, further comprising a covering mechanism (7) for preventing the examination paper from being blown away by wind, wherein the covering mechanism (7) comprises:

the left side and the right side of the top of the mounting plate (3) are provided with second sliding rails (71);

the sliding blocks (72) are arranged on the front sides of the second sliding rails (71) in a sliding manner;

the rear side of the top of the mounting plate (3) is symmetrically provided with third brackets (73) positioned on the inner sides of the second slide rails (71), and rotating rods are rotatably connected between the third brackets (73);

the shielding cloth (74) with the wind-proof function is wound on the rotating rod, and the left side and the right side of the front part of the shielding cloth (74) are connected with the sliding blocks (72) on the same side;

the left side and the right side of the top of the mounting plate (3) are provided with third sliding rails (75), and the third sliding rails (75) are positioned on the inner sides of the third supports (73);

the racks (76) are arranged on the front sides of the third sliding rails (75) in a sliding manner;

the left side and the right side of the rotating rod are both provided with a straight gear (77), and the straight gear (77) is a one-way gear;

the left side and the right side of the rotating rod are respectively wound with a scroll spring (78), the inner end of each scroll spring (78) is connected with the rotating rod, and the outer end of each scroll spring (78) is connected with a third support (73) on the same side;

the connecting blocks (79) are arranged on the inner sides of the front parts of the racks (76), and the connecting blocks (79) are connected with the pushing block (61);

and a second spring (710) is connected between the slide block (72) and the rear part of the second slide rail (71) on the same side.

5. The examination desk with the high-efficiency peep-proof function as claimed in claim 4, further comprising a turnover mechanism (8) for preventing high students from peeping cheating, wherein the turnover mechanism (8) comprises:

the left side and the right side of the rear upper part of the first shielding plate (55) are provided with the fixed blocks (81);

the second shielding plates (82) are rotatably connected between the fixed blocks (81);

the left side and the right side of the second shielding plate (82) are respectively wound with a first torsion spring (83), the inner end of each first torsion spring (83) is connected with the second shielding plate (82), and the outer end of each first torsion spring (83) is connected with the fixing block (81) on the same side;

the left side and the right side of the second shielding plate (82) are respectively provided with a lug (84), and the lugs (84) are positioned on the inner side of the first torsion spring (83);

the left side and the right side of the rear lower part of the frame body (2) are provided with fourth supports (85);

a second reel (86), wherein the lower part of the fourth bracket (85) is rotatably provided with the second reel (86);

the second pull ropes (87) are wound on the second reels (86), and the second pull ropes (87) are connected with the lugs (84) on the same side;

the second torsion springs (88) are wound on the second reels (86), the inner ends of the second torsion springs (88) are connected with the fourth supports (85) on the same side, and the outer ends of the second torsion springs (88) are connected with the second reels (86) on the same side.

6. The examination desk with the efficient peep-proof function according to claim 5, further comprising a material blocking mechanism (9) for enhancing the wind-proof effect, wherein the material blocking mechanism (9) comprises:

the front side of the mounting plate (3) is movably provided with a striker plate (92) for blocking the front part of the test paper; the bottom of the material baffle plate (92) is provided with an arc-shaped block (91);

third spring (93), be connected with third spring (93) between the arc piece (91) left and right sides all and mounting panel (3), slider (72) all with arc piece (91) upper portion contact cooperation.

7. The examination desk with the efficient peep-proof function according to claim 6, further comprising a lighting mechanism (10) for enhancing light, wherein the lighting mechanism (10) comprises:

a fourth sliding rail (101), wherein the middle of the second shielding plate (82) is provided with the fourth sliding rail (101);

the illuminating lamp (102) is arranged on the fourth sliding rail (101) in a sliding mode;

the handle (103) is arranged in the middle of the illuminating lamp (102).

8. The examination desk with the efficient peeping-proof function according to claim 7, wherein the first shielding plate (55) is U-shaped, and the left and right sides and the rear side of the frame body (2) are surrounded by the first shielding plate (55).