Cheating prevention and control terminal for computer test

Abstract

The utility model relates to the technical field of anti-cheating equipment, in particular to a cheating prevention and control terminal for computer test, which comprises a signal shielding instrument body, a circulation net is arranged on the right side of the signal shielding instrument body, a fixing plate is mounted on the right side of the circulation net, and a cooling fan is mounted in the fixing plate. A rotating shaft is arranged on the right side of the fixed plate; and the shielding plate is installed on the outer surface of the rotating shaft, and a magnet is installed on the left side of the shielding plate. According to the utility model, the heat dissipation fan is started, external air is absorbed and enters the signal shielding instrument body through the heat dissipation fan, then the external air enters the interior of the signal shielding instrument body through the circulation net, the signal shielding instrument body can be subjected to overall heat dissipation, after heat dissipation is finished, the rotating shaft is rotated again, and then the magnet and the iron block are in contact with each other; therefore, the cooling fan can be shielded, and external impurities are prevented from entering the cooling fan.

Description

TECHNICAL FIELD

[0001] The utility model relates to anti -cheating equipment technical field, concretely is a kind of terminal for preventing and controlling cheating for machine examination. BACKGROUND

[0002] Examination is an important way of selecting talents, and it is a relatively fair, fair and open talent selection form. It is a test of one's learning, knowledge and understanding ability. Through the method of examination, the quality, culture and culture of each person can be detected more fairly, and some relevant information of the examinee can be understood by others, so as to provide reference for institutions or employers. With the development of science and technology, computer examination is widely used, that is, machine examination is also a kind of examination.

[0003] To this end, China application announcement number: CN210075883U discloses an anti-cheating device for information technology machine examination, which comprises an L-shaped mounting plate, a camera, a signal shielding instrument and a display are fixedly connected in sequence on the upper surface of the L-shaped mounting plate along the horizontal direction, a water tank is fixedly connected to the lower surface of the L-shaped mounting plate, a bend pipe is fixedly connected to the inner wall of the water tank, the two ends of the bend pipe extend outward through the side wall of the water tank, a rectangular through hole is formed in the lower surface of the water tank, and a plurality of cooling fins are fixedly connected to the hole wall of the rectangular through hole, a circular hole is formed in the upper surface of the L-shaped mounting plate, and a three-way pipe is fixedly connected to the hole wall of the circular hole, and an air inlet is fixedly connected to the air inlet of the bend pipe. The utility model can effectively improve the heat dissipation efficiency of the signal shielding instrument, avoid damage of the signal shielding instrument due to high temperature, ensure normal use, effectively protect the examination order of the examination room, improve the fairness of the examination, and make the examination supervision more comprehensive and strict.

[0004] However, in actual use, the overall operation is relatively cumbersome when the signal shielding instrument is cooled, and water circulation is also needed, which is relatively cumbersome to operate. At the same time, the overall terminal needs to be plugged in for use, and the line needs to be arranged and stored after use, so it is urgent to improve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a terminal for preventing and controlling cheating for machine examination, to solve the problem that the overall operation is relatively cumbersome when the signal shielding instrument is cooled, and water circulation is also needed, which is relatively cumbersome to operate, and the overall terminal needs to be plugged in for use, and the line needs to be arranged and stored after use.

[0006] To achieve the above object, the utility model provides the following technical scheme: A kind of terminal for preventing and controlling cheating for machine examination, signal shielding instrument body is provided, the right side of signal shielding instrument body is provided with through network, the right side of through network is equipped with fixed plate, the inside of fixed plate is equipped with cooling fan, the right side of fixed plate is provided with rotating shaft;

[0007] Shielding plate is installed on the outer surface of rotating shaft, the left side of shielding plate is equipped with magnet, the inside of fixed plate is provided with iron block, and the magnet and the iron block are magnetically attracted.

[0008] Preferably, the front surface of the signal shielding instrument body is provided with a limiting frame, and the top surface of the limiting frame is provided with a limiting slot.

[0009] Preferably, the front surface of the limiting frame is provided with a rotating column, and the front surface of the rotating column is provided with a limiting ring.

[0010] Preferably, the right surface of the limiting frame is provided with a mounting plate, and the upper surface of the mounting plate is provided with a side plate.

[0011] Preferably, the left side of the side plate is provided with a sliding block, and the left side of the sliding block is provided with a protective cover.

[0012] Preferably, the lower end of the sliding block is provided with a telescopic cylinder, and the front and rear surfaces of the protective cover are provided with an adaptive slot, and the telescopic cylinder is installed inside the side plate.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、The terminal for preventing and controlling cheating for machine examination is provided with signal shielding instrument body, through network, fixed plate, cooling fan, rotating shaft, shielding plate, magnet, iron block and limiting frame, which can shield the signals in the examination room when in use, thereby achieving the effect of preventing cheating, and when cooling, the shielding plate is rotated by the rotating shaft, so that the cooling fan is not blocked, then the external air is absorbed by the cooling fan, and then the external air enters the inside of the signal shielding instrument body through the through network, thereby achieving overall cooling of the signal shielding instrument body, when cooling is completed, the rotating shaft is rotated again, and then the magnet and the iron block are in contact, thereby blocking the cooling fan, preventing external impurities from entering the inside of the cooling fan, and embodying the practicability of the design.

[0015] 2、The machine examination uses the terminal of cheating prevention and control, through the setting limit frame, limit groove, rotating column, limit ring, mounting plate, side plate, sliding block, protective cover and adaptive groove, when the signal shielding instrument body is used, first the line is placed in the limit groove, if the line is long, the line is wound on the outer surface of the rotating column, the line is limited through the limit ring, then the plug of the line is placed on the surface of the mounting plate, then the protective cover is pressed, the sliding block is lowered in the side plate, the descending of the sliding block is limited through the telescopic cylinder, so that the protective cover can be installed on the outer surface of the line plug, and the adaptive groove can be adapted with the plug line, therefore, the design can arrange and store the line and plug of the signal shielding instrument body, and the functionality of the design is embodied. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic view of the structure of the utility model;

[0017] Figure 2 It is a split schematic view of the signal shielding instrument body and the fixed plate structure of the utility model;

[0018] Figure 3 It is a split schematic view of the fixed plate and the rotating shaft structure of the utility model;

[0019] Figure 4 It is a three-dimensional schematic view of the limit frame and the mounting plate structure of the utility model;

[0020] Figure 5 It is a three-dimensional schematic view of the protective cover structure of the utility model.

[0021] In the drawing: 1, signal shielding instrument body; 2, flow-through net; 3, fixed plate; 4, cooling fan; 5, rotating shaft; 6, baffle; 7, magnet; 8, iron block; 9, limit frame; 10, limit groove; 11, rotating column; 12, limit ring; 13, mounting plate; 14, side plate; 15, sliding block; 16, protective cover; 17, adaptive groove; 18, telescopic cylinder. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-5 The utility model provides an embodiment:

[0024] The signal shielding instrument body 1, the heat dissipation fan 4, the magnet 7, the iron block 8 and the telescopic cylinder 18 used in the application are all products that can be directly purchased on the market, the principles and connection modes thereof are all prior art known to those skilled in the art, and thus will not be described here again, including the signal shielding instrument body 1, the right side of the signal shielding instrument body 1 is provided with the flow-through net 2, the right side of the flow-through net 2 is installed with the fixed plate 3, the inside of the fixed plate 3 is installed with the heat dissipation fan 4, the right side of the fixed plate 3 is provided with the rotating shaft 5, the front surface of the signal shielding instrument body 1 is installed with the limiting frame 9, the top surface of the limiting frame 9 is provided with the limiting groove 10, the front surface of the limiting frame 9 is installed with the rotating column 11, the front surface of the rotating column 11 is installed with the limiting ring 12, the right side surface of the limiting frame 9 is installed with the mounting plate 13, the upper surface of the mounting plate 13 is installed with the side plate 14, the left side inside of the side plate 14 is slidably installed with the sliding block 15, the left side of the sliding block 15 is installed with the protective cover 16, the lower end of the sliding block 15 is installed with the telescopic cylinder 18, the front and back surfaces of the protective cover 16 are both provided with the adaptive groove 17, and the telescopic cylinder 18 is installed inside the side plate 14, when the signal shielding instrument body 1 is used as a whole, at this time, first, the line is placed inside the limiting groove 10, if the line is longer, at this time, the line is wound on the outer surface of the rotating column 11, the line is limited through the limiting ring 12, then the plug of the line is placed on the surface of the mounting plate 13, then the protective cover 16 is pressed, at this time, the sliding block 15 will descend inside the side plate 14, the descending of the sliding block 15 is limited through the telescopic cylinder 18, so that the protective cover 16 can be installed on the outer surface of the line plug, and the adaptive groove 17 can be adapted with the plug line, therefore, the design can arrange and store the line and the plug of the signal shielding instrument body 1.

[0025] The shielding plate 6 is installed on the outer surface of the rotating shaft 5, the left side of the shielding plate 6 is installed with the magnet 7, the inside of the fixed plate 3 is provided with the iron block 8, the magnet 7 and the iron block 8 are magnetically attracted to each other, and the back surface of the signal shielding instrument body 1 is also provided with the natural flow-through hole, therefore, through the design of the heat dissipation fan 4, the air flow speed can be fast, and the heat dissipation effect is good, through the signal shielding instrument body 1 as a whole, the signals in the examination room can be shielded, so that a certain anti-cheating effect can be achieved, when heat dissipation is performed, the shielding plate 6 is rotated through the rotating shaft 5, so that the heat dissipation fan 4 is unblocked, then the heat dissipation fan 4 is started, the external air is sucked in through the heat dissipation fan 4, then the external air enters the inside of the signal shielding instrument body 1 through the flow-through net 2, the signal shielding instrument body 1 can be overall heat dissipated, when the heat dissipation is completed, at this time, the rotating shaft 5 is rotated again, then the magnet 7 and the iron block 8 are in contact with each other, so that the heat dissipation fan 4 is blocked, and external impurities are prevented from entering the inside of the heat dissipation fan 4.

[0026] Working principle: when the staff uses the device, first, the device is connected with power supply, thereby providing power support for the device, the signal shielding instrument body 1 can shield the signal in the examination room, thereby playing a certain effect of preventing cheating, and when radiating heat, the shielding plate 6 is rotated through the rotating shaft 5, so that the heat dissipation fan 4 is unshielded, then the heat dissipation fan 4 is started, the external air is absorbed into the signal shielding instrument body 1 through the heat dissipation fan 4, and the signal shielding instrument body 1 can be radiated as a whole, when the heat dissipation is finished, the rotating shaft 5 is rotated again, then the magnet 7 is in contact with the iron block 8, thereby shielding the heat dissipation fan 4, when the signal shielding instrument body 1 is used as a whole, first, the line is placed in the limiting groove 10, if the line is long, the line is wound on the outer surface of the rotating column 11, the line is limited through the limiting ring 12, then the plug of the line is placed on the surface of the mounting plate 13, then the protective cover 16 is pressed, the sliding block 15 is lowered in the side plate 14, the sliding block 15 is limited through the telescopic cylinder 18, thereby the protective cover 16 can be installed on the outer surface of the line plug, and the adaptive groove 17 can be adapted with the plug line, the above is all working principles of the utility model.

[0027] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form; the ordinary technical personnel in the industry can implement the utility model according to the drawings and the above description; however, the skilled person in the art can make some changes, modifications and equivalent changes within the scope of the technical scheme of the utility model, and the equivalent changes are equivalent embodiments of the utility model; meanwhile, any equivalent changes of the above embodiments according to the essential technology of the utility model are still within the protection scope of the technical scheme of the utility model.

Claims

1. A machine examination cheating prevention terminal, comprising a signal shielding instrument body (1), a flow-through network (2) is arranged on the right side of the signal shielding instrument body (1), characterized in that: The right side of the flow network (2) is provided with a fixed plate (3), the inside of the fixed plate (3) is provided with a cooling fan (4), the right side of the fixed plate (3) is provided with a rotating shaft (5); The outside of the rotating shaft (5) is provided with a shielding plate (6), the left side of the shielding plate (6) is provided with a magnet (7), the inside of the fixed plate (3) is provided with an iron block (8), the magnet (7) and the iron block (8) are magnetically attracted to each other.

2. The terminal for preventing cheating in a machine examination according to claim 1, characterized in that: The front surface of the signal shielding instrument body (1) is provided with a limiting frame (9), and the top surface of the limiting frame (9) is provided with a limiting groove (10).

3. The terminal for preventing cheating in a machine examination according to claim 2, characterized in that: The front surface of the limiting frame (9) is provided with a rotating column (11), and the front surface of the rotating column (11) is provided with a limiting ring (12).

4. The terminal for preventing cheating in a machine examination according to claim 2, characterized in that: The right surface of the limiting frame (9) is provided with a mounting plate (13), and the upper surface of the mounting plate (13) is provided with a side plate (14).

5. The terminal according to claim 4, characterized in that: The left side of the side plate (14) is provided with a sliding block (15), and the left side of the sliding block (15) is provided with a protective cover (16).

6. The terminal for preventing cheating in a machine examination according to claim 5, wherein: The lower end of the sliding block (15) is provided with a telescopic cylinder (18), the front and rear surfaces of the protective cover (16) are provided with an adaptive groove (17), and the telescopic cylinder (18) is installed in the inside of the side plate (14).

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