CN112051215B - Terahertz security inspection device - Google Patents
Terahertz security inspection device Download PDFInfo
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- CN112051215B CN112051215B CN202010808655.7A CN202010808655A CN112051215B CN 112051215 B CN112051215 B CN 112051215B CN 202010808655 A CN202010808655 A CN 202010808655A CN 112051215 B CN112051215 B CN 112051215B
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- 238000007689 inspection Methods 0.000 title claims abstract description 36
- 230000005484 gravity Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 abstract description 17
- 238000009434 installation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3581—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared light; using Terahertz radiation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Spectroscopy & Molecular Physics (AREA)
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a terahertz security inspection device, which comprises a base, wherein a support column is fixed at the bottom in the base, a groove is formed in the support column, a first spring is fixed in the groove, a pressing block is fixed at the upper end of the first spring, the upper end of the pressing block penetrates through the top of the base and extends out of the upper end of the base, a pedal is fixed at the upper end of the pressing block, third springs are fixed at two sides of the lower end of the pedal, the lower ends of the two third springs are fixed on the base, and two gravity sensors are fixed on the base. The usability and the practicability are improved, the operation is simple, and the detection can be carried out on the personnel with different heights according to the adjustment of the personnel with different heights, so that the detection time is shortened, and the security inspection efficiency is improved.
Description
Technical Field
The invention relates to the technical field of terahertz security inspection devices, in particular to a terahertz security inspection device.
Background
With the continuous development of science and technology, public transportation is also continuously developed, security inspection devices are mostly set up in places with dense human flow such as subway stations, railway stations and airports, the security of passengers and pedestrians is monitored, dangerous objects carried by the passengers or pedestrians are prevented from entering, the life security of the passengers and pedestrians is guaranteed, the existing terahertz imaging system and the terahertz security inspection devices have various functions, diversification is realized, for example, a security inspection device disclosed in the publication No. CN108227021A is realized, and an electromagnetic detection circuit acquires a first signal generated when a metal conductor passes through under the excitation of exciting voltage; the second detector comprises a gas detection circuit, and the gas detection circuit detects particles volatilized by gas and liquid carried by a user to generate a second signal; the processing unit comprises a main control circuit which is respectively and electrically connected with the electromagnetic detection circuit and the gas detection circuit, compares a first signal with a preset first signal threshold value, compares a second signal with a preset second signal threshold value, and generates an alarm signal according to a comparison result; the invention also provides a security inspection machine and security inspection channel equipment, wherein the security inspection machine comprises an N-layer security inspection channel structure which is arranged up and down, so that classification security inspection can be performed during security inspection, space can be saved, passengers can conveniently take and place security inspection objects, the security inspection machine provided by the invention can improve security inspection efficiency and personnel passing speed, is particularly suitable for large passenger flow security inspection places, and therefore the existing terahertz imaging system and terahertz security inspection device can be known to meet the use requirements of people.
The existing terahertz imaging system and the terahertz security inspection device are widely used for detecting pedestrians or passengers, security inspection staff are required to use the heavy metal detector to check the bodies of the pedestrians or passengers again up and down, and under the condition of long-time working, arm ache of the security inspection staff can be caused, usability and practicality are reduced, and working efficiency of security inspection staff is affected.
Disclosure of Invention
The invention aims to solve the defect that the labor intensity of staff is too high when the staff is detected at present, and provides a terahertz security inspection device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the terahertz security inspection device comprises a base, wherein a supporting column is fixed at the bottom in the base, a groove is formed in the supporting column, a first spring is fixed in the groove, a pressing block is fixed at the upper end of the first spring, the upper end of the pressing block penetrates through the top of the base and extends out of the upper end of the base, a pedal is fixed at the upper end of the pressing block, third springs are fixed at two sides of the lower end of the pedal, the lower ends of the two third springs are fixed on the base, two gravity sensors are fixed on the base, a transmission device is arranged at the bottom in the base, and a third rotating rod is arranged on the transmission device;
the device comprises a base, and is characterized in that a bearing plate is fixed on one side of the upper end of the base, a placing groove is formed in the bearing plate, a lifting device is arranged in the placing groove, a fixed plate is arranged on the lifting device, a supporting frame is fixed on the fixed plate, a limiting device is arranged on the supporting frame, two moving plates are arranged on the limiting device, a square tube support is placed on the supporting frame, and a terahertz lens is fixed on the square tube support;
the transmission device comprises a motor fixed in a base, a first rotating rod is fixed at the tail end of an output shaft of the motor, a rotary table is fixed at one end of the first rotating rod, a second rotating rod is rotatably sleeved on a supporting column, two mounting rods are connected in a sliding mode on the second rotating rod, one ends of the two mounting rods respectively penetrate through the second rotating rod and extend to one side of the second rotating rod, clamping blocks are fixed at one ends of the two mounting rods, connecting blocks are rotatably sleeved on the two mounting rods, connecting rods are rotatably connected to the two connecting blocks, second openings are formed in opposite side walls of the grooves, one ends of the two connecting rods penetrate through the two second openings and extend into the grooves, one ends of the two connecting rods are rotatably connected to the lower end of a pressing block, mounting plates are jointly fixed on opposite side walls of the base, the third rotating rod is rotatably sleeved on the mounting plates, one ends of the third rotating rod are fixedly provided with another rotary table, clamping grooves are correspondingly formed in the two rotary tables, and the clamping grooves and the clamping blocks are correspondingly arranged;
the lifting device comprises a first screw rod which is rotationally connected with the inner top of the placing groove, the lower end of the first screw rod penetrates through the side walls of the placing groove and the base and extends into the base, a second conical gear is sleeved on the first screw rod through threads, a first conical gear is sleeved on a third rotating rod through rotation, the first conical gear and the second conical gear are meshed with each other, a moving block is sleeved on the first screw rod through threads, one end of the moving block is fixedly fixed on one side of the fixed plate, two guide rails are arranged on one side wall of one end of the placing groove, a first sliding block is installed in each guide rail, and one end of the first sliding block is fixed on one side of the fixed plate.
Preferably, the stop device is including fixing four reference columns on the support frame, the bottom of square pipe support is equipped with the jack that corresponds with four reference columns, the bottom of support frame is fixed with four fixed blocks, and two fixed blocks of same side are a set of, and rotation is connected with the second screw rod jointly between two fixed blocks of one set of, is fixed with the slide bar jointly between two fixed blocks of another set, the slide bar runs through two movable plates, be equipped with left-hand thread and right-hand thread on the second screw rod, one end screw rod of one of them movable plate cup joints on the second screw rod that is equipped with left-hand thread, and the one end screw rod of another movable plate cup joints on the second screw rod that is equipped with right-hand thread, and the upper end of two movable plates all is fixed with L type pole, be equipped with four first openings on the support frame, the upper end of four L type poles runs through four first openings respectively and extends to the top of support frame, the both sides of square pipe support frame all are equipped with the through-hole, and the one end of four L type poles extends to in the through-hole that corresponds.
Preferably, the upper end of base is fixed with two stopper, and two stoppers are located the both sides of pedal, and one side of two stopper all is equipped with the spout, install the second slider in the spout, the one end of two second sliders is fixed in one side of pedal respectively.
Preferably, a rotating block is fixedly sleeved on the second screw rod.
Preferably, an infrared sensor is fixed on the support frame.
Compared with the prior art, the invention has the beneficial effects that:
1. the square tube support can be adjusted in height through the cooperation between the transmission device and the lifting device, so that the purpose of detecting people with different heights is achieved, the detection is fast, and the detection efficiency is improved;
2. the square tube support is fixed firmly by matching the parts in the limiting device, and meanwhile, the square tube support is convenient to detach, so that the terahertz lens and other parts can be conveniently detected and maintained at a later stage, and the use efficiency is improved;
in conclusion, the usability and the practicability are improved, the operation is simple, and the safety inspection device can be adjusted according to different raised personnel to detect the personnel with different heights, so that the detection time is shortened, and the safety inspection efficiency is improved.
Drawings
Fig. 1 is a front view of a terahertz security apparatus provided by the invention;
fig. 2 is a schematic structural diagram of a terahertz security inspection apparatus in a carrier plate according to the present invention;
fig. 3 is a schematic structural diagram of a terahertz security apparatus on a supporting frame according to the present invention
Fig. 4 is a side view of a support frame of a terahertz security apparatus according to the present invention;
fig. 5 is an enlarged view of a portion a of a terahertz security inspection apparatus according to the present invention;
fig. 6 is a schematic structural diagram of a positioning column of a terahertz security apparatus provided by the invention;
fig. 7 is a schematic structural diagram of a square tube support of a terahertz security inspection apparatus provided by the invention;
fig. 8 is a schematic structural diagram of the terahertz security apparatus in the sleeve according to the present invention;
fig. 9 is a schematic structural diagram of the terahertz security apparatus in the second rotating rod.
In the figure: 1 base, 2 first conical gear, 3 mounting panel, 4 pedal, 5 connecting rod, 6 carousel, 7 first dwang, 8 motor, 9 briquetting, 10 first spring, 11 second dwang, 12 support column, 13 third dwang, 14 terahertz lens, 15 square pipe support, 16 support frame, 17 fixed plate, 18 loading board, 19 guide rail, 20 first opening, 21 first screw, 22 second screw, 23 movable plate, 24L type pole, 25 swivelling block, 26 sleeve pipe, 27 reference column, 28 through-hole, 29 fixed block, 30 depression bar, 31 second spring, 32 second slider, 33 stopper, 34 spout, 35 third spring, 36 connecting block, 37 installation pole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-9, a terahertz security inspection device comprises a base 1, a support column 12 is fixed at the bottom in the base 1, a groove is formed in the support column 12, a first spring 10 is fixed in the groove, a pressing block 9 is fixed at the upper end of the first spring 10, the first spring 10 is convenient for resetting the pressing block 9, the upper end of the pressing block 9 penetrates through the top of the base 1 and extends to the upper end of the base 1, a pedal 4 is fixed at the upper end of the pressing block 9, a person to be detected is adhered to the pedal 4, third springs 35 are fixed at two sides of the lower end of the pedal 4, the lower ends of the two third springs 35 are fixed on the base 1, two gravity sensors are fixed on the base 1, the pedal 4 is pressed on the gravity sensors, the gravity sensors detect that a heavy object starts to rotate a motor 8, a transmission device is arranged at the bottom in the base 1, a third rotating rod 13 is arranged on the transmission device, the transmission device drives the third rotating rod 13 to rotate, thereby the movement of a lifting device is regulated, the terahertz lens 14 is driven to move rapidly, and accordingly, the person is detected rapidly, and the detection efficiency is improved;
referring to fig. 1-2, a loading plate 18 is fixed on one side of the upper end of the base 1, a placing groove is arranged on the loading plate 18, a lifting device is arranged in the placing groove, a fixing plate 17 is arranged on the lifting device, the lifting device adjusts the position of the fixing plate 17, a supporting frame 16 is fixed on the fixing plate 17, an infrared sensor is fixed on the supporting frame 16, the infrared sensor detects a human body, the terahertz lens 14 starts to work, a limiting device is arranged on the supporting frame 16, two moving plates 23 are arranged on the limiting device, a square tube support 15 is placed on the supporting frame 16, the limiting device is used for fixing the square tube support 15, the fixing plate 17 is fixed on the square tube support 15, the terahertz lens 14 is connected with the terahertz detection equipment, and is fixed on the square tube support 15, and the size is small, the transportation is convenient, and the detection and the maintenance are convenient.
Referring to fig. 1 and 9, the transmission includes the motor 8 of fixing in base 1, the output shaft end of motor 8 is fixed with first dwang 7, motor 8 can drive first dwang 7 and carry out corotation and reversal, the one end of first dwang 7 is fixed with a carousel 6, the second dwang 11 has been cup jointed in the rotation on the support column 12, sliding connection has two installation poles 37 in the second dwang 11, installation pole 37 can slide about on second dwang 11, conveniently extend, the one end of two installation poles 37 runs through second dwang 11 respectively and extends to one side of second dwang 11, the one end of two installation poles 37 all is fixed with the fixture block, all rotate on two installation poles 37 and cup jointed connecting block 36, all rotate on two connecting block 36 and be connected with connecting rod 5, because the effect of connecting rod 5, can not produce the rotation, all be equipped with the second opening on the relative lateral wall of recess, two second openings are run through and extend to the recess, the one end of two connecting rod 5 rotates and is connected at the lower extreme of briquetting 9, the lower extreme of 13 is equipped with the relative rotation of 3 to the carousel 13 through the 3 when setting up and down the 3, the relative rotation of 3 clamp blocks of setting up the first side wall, the 3 and the 3 can be fixed to the fixed mounting panel, the three clamp blocks rotate, the 3 is rotated, the side 13 is fixed to the relative rotation groove is realized, the 3 is fixed to the 3, and the joint installation board is rotated, and can be fixed to the 3 is rotated, and can be moved to the 3, and can rotate the relative rotation groove is fixed to the 3, and can be moved and is moved.
Referring to fig. 1 and 2, the lifting device comprises a first screw 21 rotatably connected with the inner top of the placing groove, the lower end of the first screw 21 penetrates through the placing groove and the side wall of the base 1 and extends into the base 1, a second bevel gear is sleeved on the first screw 21 in a threaded manner, a first bevel gear 2 is sleeved on a third rotating rod 13 in a rotating manner, the first bevel gear 2 and the second bevel gear are meshed with each other, the first bevel gear 2 and the second bevel gear control the rotation of the first screw 21, a moving block is sleeved on the first screw 21 in a threaded manner, one end of the moving block is fixedly fixed on one side of the fixed plate 17, the moving block controls the movement of the fixed plate 17, two guide rails 19 are arranged on the side wall of one end of the placing groove, a first sliding block is installed in the guide rails 19, one end of the first sliding block is fixed on one side of the fixed plate 17, the first sliding block controls the fixed plate 17 to lift, so that the movement of the support frame 16 is driven, the human body is rapidly detected from top to bottom, and the detection efficiency is improved.
Referring to fig. 1 and 2, the limiting device comprises four positioning posts 27 fixed on a supporting frame 16, jacks corresponding to the four positioning posts 27 are arranged at the bottom of a square tube support 15, the positioning posts 27 prevent the jacks from moving left and right, the square tube support 15 is positioned, four fixing blocks 29 are fixed at the bottom of the supporting frame 16, two fixing blocks 29 on the same side are a group, a second screw rod 22 is connected between the two fixing blocks 29 of the group in a co-rotating manner, a rotating block 25 is fixedly sleeved on the second screw rod 22, sliding rods are jointly fixed between the two fixing blocks 29 of the other group, the sliding rods penetrate through two moving plates 23, left-handed threads and right-handed threads are arranged on the second screw rod 22, one end of one moving plate 23 is sleeved on the second screw rod 22 provided with the left-handed threads, one end of the other moving plate 23 is sleeved on the second screw rod 22 provided with the right-handed threads, the second screw rod 22 is controlled to move in different directions, the L-shaped rods 24 are driven to move, the upper ends of the two moving plates 23 are both fixed with the L-shaped rods 24, the four square tube supports 24 are provided with four L-shaped rods 16, and the four square tube supports 24 extend to the left side 15 through holes 28 respectively, and the four square tube supports 20 extend to the left side 15 through the four square tube supports 24.
According to the invention, two limiting blocks 33 are fixed at the upper end of the base 1, the two limiting blocks 33 are positioned at two sides of the pedal 4, one sides of the two limiting blocks 33 are provided with sliding grooves 34, the sliding grooves 34 are internally provided with second sliding blocks 32, one ends of the two second sliding blocks 32 are respectively fixed at one side of the pedal 4, and the second sliding blocks 32 facilitate movement and resetting of the pedal 4 and facilitate detection of different personnel.
In the invention, when in use, the terahertz lens 14 is fixed on the square tube support 15, the electric elements to be used are fixed on the fixed plate 17, then the jack on the square tube support 15 and the four positioning posts 27 are correspondingly arranged, after the square tube support 15 is placed, the rotating block 25 is rotated, the rotating block 25 drives the second screw 22 to rotate, as the two ends of the second screw 22 are respectively provided with left-handed threads and right-handed threads, the moving directions of the second screw 22 are opposite, the moving directions of the two moving plates 23 are opposite, the moving plates 23 drive the four L-shaped rods 24 to move to the positions of the through holes 28, at the moment, a worker pulls the pressing rod 30, stretches the second spring 31, the pressing rod 30 drives the L-shaped rods 24 to move upwards to correspond to the through holes 28, at the moment, the second screw 22 continues to move so that the L-shaped rods 24 penetrate through the through holes 28, then the second spring 31 resets, the L-shaped rods 24 press the square tube support 15 to be fixed, when a person needs to be detected, the person stands on the pedal 4, the third spring 35 is compressed and simultaneously presses the two gravity sensors, the gravity sensors enable the motor 8 to start rotating, the pedal 4 simultaneously enables the pressing block 9 to move downwards, the pressing block 9 can push the connecting rod 5 to move, the connecting rod 5 enables the mounting rod 37 to slide, the clamping block on the mounting rod moves into the clamping groove, at the moment, the motor 8 drives the first rotating rod 7 to rotate so as to mobilize the third rotating rod 13 to rotate, the third rotating rod 13 mobilizes the first conical gear 2 to rotate, the first conical gear 2 drives the second conical gear to rotate, the second conical gear drives the first screw 21 to rotate, the first screw 21 controls the fixing plate 17 to move, the fixing plate 17 drives the supporting frame 16 to lift, when the infrared sensor detects a person, the terahertz lens 14 starts irradiating the head of the human body, the motor 8 continues to rotate, each position of the human body is detected, the speed block is identified, when a person stands on the pedal 4, the terahertz lens 14 is ready for detection when the infrared sensor detects the person, and when the infrared sensor does not detect the person, the terahertz lens 14 does not irradiate the human body, so that the detection efficiency is improved.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. Terahertz security inspection device, including base (1), its characterized in that: the novel pedal structure is characterized in that a support column (12) is fixed at the bottom in the base (1), a groove is formed in the support column (12), a first spring (10) is fixed in the groove, a pressing block (9) is fixed at the upper end of the first spring (10), the upper end of the pressing block (9) penetrates through the top of the base (1) and extends the upper end of the base (1), a pedal (4) is fixed at the upper end of the pressing block (9), third springs (35) are fixed at two sides of the lower end of the pedal (4), two gravity sensors are fixed on the base (1) at the lower ends of the two third springs (35), a transmission device is arranged at the bottom in the base (1), and a third rotating rod (13) is arranged on the transmission device;
the device is characterized in that a bearing plate (18) is fixed on one side of the upper end of the base (1), a placing groove is formed in the bearing plate (18), a lifting device is arranged in the placing groove, a fixing plate (17) is arranged on the lifting device, a supporting frame (16) is fixed on the fixing plate (17), a limiting device is arranged on the supporting frame (16), two moving plates (23) are arranged on the limiting device, a square tube support (15) is placed on the supporting frame (16), and a terahertz lens (14) is fixed on the square tube support (15);
the transmission device comprises a motor (8) fixed in a base (1), a first rotating rod (7) is fixedly arranged at the tail end of an output shaft of the motor (8), one end of the first rotating rod (7) is fixedly provided with a rotary table (6), a second rotating rod (11) is rotatably sleeved on a supporting column (12), two mounting rods (37) are connected in a sliding mode in the second rotating rod (11), one ends of the two mounting rods (37) penetrate through the second rotating rod (11) respectively and extend to one side of the second rotating rod (11), clamping blocks are fixedly arranged at one ends of the two mounting rods (37), connecting blocks (36) are rotatably sleeved on the two mounting rods (37), connecting rods (5) are rotatably connected to the two connecting blocks (36), one ends of the two connecting rods (5) penetrate through the two second openings and extend into the grooves, one ends of the two connecting rods (5) are rotatably connected to the lower ends of a pressing block (9), two opposite side walls of the base (1) are fixedly provided with clamping blocks, and the two mounting plates (3) are rotatably sleeved on the opposite side walls of the base (1), and the two mounting plates (13) are rotatably connected to one another, and the corresponding clamping blocks (13) are rotatably arranged on the two mounting plates (13);
the lifting device comprises a first screw (21) which is rotationally connected with the inner top of the placing groove, the lower end of the first screw (21) penetrates through the side walls of the placing groove and the base (1) and extends into the base (1), a second conical gear is sleeved on the first screw (21) in a threaded mode, a first conical gear (2) is sleeved on a third rotating rod (13) in a rotating mode, the first conical gear (2) and the second conical gear are meshed with each other, a moving block is sleeved on the first screw (21) in a threaded mode, one end of the moving block is fixed on one side of the fixed plate (17), two guide rails (19) are arranged on one end side walls of the placing groove, a first sliding block is installed in the guide rails (19), and one end of the first sliding block is fixed on one side of the fixed plate (17).
2. The terahertz security inspection device according to claim 1, characterized in that the limiting device comprises four positioning columns (27) fixed on a support frame (16), the bottom of the square tube support frame (15) is provided with jacks corresponding to the four positioning columns (27), four fixing blocks (29) are fixed at the bottom of the support frame (16), two fixing blocks (29) on the same side are combined into a group, a second screw rod (22) is jointly connected between the two fixing blocks (29) of the group in a rotating way, a sliding rod is jointly fixed between the two fixing blocks (29) of the other group, the sliding rod penetrates through the two moving plates (23), the second screw rod (22) is provided with left-handed threads and right-handed threads, one end of one moving plate (23) is sheathed on the second screw rod (22) provided with the left-handed threads, one end of the other moving plate (23) is sheathed on the second screw rod (22) provided with the right-handed threads, L-shaped rods (24) are both fixed at the upper ends of the two moving plates (23), a sliding rod (16) is jointly fixed between the two fixing blocks (29), the sliding rod penetrates through the two moving plates (23) and extends to the two sides of the square tube support frame (16) respectively, one end of each of the four L-shaped rods (24) extends into a corresponding through hole (28).
3. The terahertz security inspection device according to claim 1, characterized in that two limiting blocks (33) are fixed at the upper end of the base (1), the two limiting blocks (33) are located on two sides of the pedal (4), sliding grooves (34) are formed in one sides of the two limiting blocks (33), second sliding blocks (32) are installed in the sliding grooves (34), and one ends of the two second sliding blocks (32) are respectively fixed on one side of the pedal (4).
4. Terahertz security inspection device according to claim 2, characterized in that the second screw (22) is fixedly sleeved with a rotating block (25).
5. The terahertz security apparatus according to claim 1, characterized in that an infrared sensor is fixed on the support frame (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010808655.7A CN112051215B (en) | 2020-08-12 | 2020-08-12 | Terahertz security inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010808655.7A CN112051215B (en) | 2020-08-12 | 2020-08-12 | Terahertz security inspection device |
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| Publication Number | Publication Date |
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| CN112051215A CN112051215A (en) | 2020-12-08 |
| CN112051215B true CN112051215B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010808655.7A Active CN112051215B (en) | 2020-08-12 | 2020-08-12 | Terahertz security inspection device |
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| CN112701491B (en) * | 2021-02-02 | 2024-06-11 | 桂林电子科技大学 | Terahertz adjustable polarization converter based on graphene composite super surface |
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