A terahertz security inspection device suitable for use in security inspection technology

Abstract

The present invention provides a terahertz security inspection device suitable for use in security inspection technology. The terahertz security inspection device suitable for use in security inspection technology comprises: a security inspection base, on which a security inspection mechanism and two adjustment mechanisms are arranged; the security inspection mechanism comprises four self-locking wheels, two mounting brackets, a back plate, a top plate, a metal detector, two terahertz signal transmitters, a plurality of terahertz signal receivers, two mounting sleeves, a plurality of reflectors and four concave mirrors, and the four self-locking wheels are fixedly mounted on the bottom of the security inspection base. The technical problem solved by the present invention is to provide a terahertz security inspection device suitable for use in security inspection technology that can perform all-round inspections on persons to be inspected, can perform accurate inspections on body parts at different heights, can be conveniently transported, and can be quickly fixed when arriving at a designated location.

Description

Technical Field

[0001] The present invention belongs to the technical field of security inspection, and in particular relates to a terahertz security inspection device suitable for use in security inspection technology. Background Art

[0002] With the continuous development of the times, my country's security technology has also developed rapidly. When entering some special occasions, it is necessary to conduct security checks on the human body. Human body security checks refer to security checks to check whether there are prohibited items and dangerous items in the body when checking the human body in a special environment. Traditional human body security inspection methods mainly include metal security gates and manual body searches. In recent years, new human body security checks such as terahertz human body security detectors have been increasingly used, further improving the security of public places. In the prior art, an active terahertz security inspection device has been announced, including a laser, a detector, a reflector, a spectrometer and a beam expander. The laser is located on the side of the inspected person and arranged vertically, the spectrometer is located above the inspected person, and beam expanders are arranged on the front and back of the human body. The beam expander mirror is arranged at an angle relative to the vertical plane where the back of the human body is located. Compared with the existing passive terahertz imaging technology, the invention has clear imaging quality and is not easily affected by human clothing and the surrounding environment. It can be widely used in security inspection fields such as airports, stations, and prisons.

[0003] However, there are some shortcomings in the above structure. When conducting safety inspection on human body, it is impossible to conduct a full range of terahertz inspection on the inspected person. At the same time, the device cannot be moved and needs to be manually carried by the operator, which is time-consuming and labor-intensive.

[0004] Therefore, it is necessary to provide a new terahertz security inspection device suitable for use in security inspection technology to solve the above technical problems. Summary of the invention

[0005] The technical problem solved by the present invention is to provide a terahertz security inspection device suitable for use in security inspection technology, which can conduct all-round inspections on the personnel to be inspected, accurately inspect the body parts at different heights, and can be easily transported and quickly fixed when arriving at the designated location.

[0006] In order to solve the above technical problems, the terahertz security inspection device suitable for use in security inspection technology provided by the present invention includes a security inspection base, on which a security inspection mechanism and two adjustment mechanisms are arranged; the security inspection mechanism includes four self-locking wheels, two mounting brackets, a back plate, a top plate, a metal detector, two terahertz signal transmitters, a plurality of terahertz signal receivers, two mounting sleeves, a plurality of reflectors and four concave mirrors, the four self-locking wheels are fixedly mounted on the bottom of the security inspection base, the two mounting brackets are fixedly mounted on the top of the security inspection base, and the back plate is fixedly mounted on the top of the security inspection base. , one side of the back plate is fixedly connected to the outer wall of one side of the mounting bracket, the top plate is fixedly installed on the top of the back plate, the bottom of the top plate is fixedly connected to the top of the mounting bracket, the metal detector is fixedly installed on one side of the back plate, the two terahertz signal transmitters are respectively fixedly installed in the corresponding mounting brackets, the multiple terahertz signal receivers are respectively fixedly installed in the corresponding mounting brackets, the two mounting sleeves are respectively arranged in the corresponding mounting brackets, the multiple reflectors are respectively fixedly installed on the corresponding mounting sleeves, and the four concave mirrors are respectively arranged in the corresponding mounting brackets;

[0007] The adjusting mechanism comprises two lifting slots, an auxiliary block, a motor slot 1, a motor 1, a rotating rod 1, a motor slot 2, a motor 2, a threaded long rod, a connecting block and two driving components, the two lifting slots are both arranged in the mounting bracket, the auxiliary block is arranged in the corresponding lifting slot, one side of the auxiliary block extends to the outside of the corresponding lifting slot, the motor slot 1 is arranged on the outer wall of one side of the auxiliary block, the motor 1 is fixedly mounted on the inner wall of one side of the motor slot 1, the rotating rod 1 is fixedly mounted on the output shaft of the motor 1, one end of the rotating rod 1 extends to the outside of the lifting slot, the rotating rod 1 is fixedly connected to the corresponding mounting sleeve, the motor slot 2 is arranged on the bottom inner wall of the corresponding lifting slot, the motor 2 is fixedly mounted on the bottom inner wall of the motor slot 2, the threaded long rod is fixedly mounted on the output shaft of the motor 2, the top end of the threaded long rod extends into the corresponding lifting slot and is rotatably connected to the lifting slot, the connecting block is threadedly mounted on the threaded long rod, one side of the connecting block extends to the outside of the corresponding lifting slot, and one side outer wall of the connecting block is rotatably connected to one end of the rotating rod 1;

[0008] The driving assembly includes a rotating rod 2, a block, a bevel gear 1, a motor 3 and a bevel gear 2. The rotating rod 2 is rotatably mounted in a mounting bracket, the block is fixedly mounted on the rotating rod 2, an outer wall of one side of the block is fixedly connected to a concave mirror, the bevel gear 1 is fixedly mounted on the rotating rod 2, the motor 3 is fixedly mounted on the bottom inner wall of the mounting bracket, the bevel gear 2 is fixedly mounted on the output shaft of the motor 3, and the bevel gear 2 is meshed with the bevel gear 1.

[0009] As a further solution of the present invention, a rectangular groove is provided at the bottom of the security inspection base, and two threaded sleeves are rotatably installed on the top inner wall of the rectangular groove, and a threaded short rod is installed on the inner thread of the threaded sleeve. The bottom end of the threaded short rod extends out of the rectangular groove, and the bottom ends of the two threaded short rods are fixedly installed with the same contact plate, and an external gear ring is fixedly installed on the threaded sleeve. Two round rods are rotatably installed on the top inner wall of the rectangular groove, and a rotating gear 1 is fixedly installed on the bottom end of the round rod, and the rotating gear 1 is meshed with the corresponding external gear ring.

[0010] As a further solution of the present invention, a bevel gear three is fixedly installed on the round rod, a dual-axis motor is fixedly installed on the top inner wall of the rectangular groove, a transmission rod is fixedly installed on both output shafts of the dual-axis motor, a bevel gear four is fixedly installed on one end of the transmission rod, and the bevel gear four is meshed with the corresponding bevel gear three.

[0011] As a further solution of the present invention, two limit boxes are fixedly installed on the top inner wall of the rectangular groove, a T-shaped slide bar is arranged in the limit box, the bottom end of the T-shaped slide bar extends out of the rectangular groove, the T-shaped slide bar is slidably connected to the limit box, and the bottom end of the T-shaped slide bar is fixedly connected to the top of the contact plate.

[0012] As a further solution of the present invention, a circular groove is provided on the top of the security inspection base, a cylindrical block is rotatably installed in the circular groove, the top of the cylindrical block extends out of the circular groove, an annular support groove is provided at the bottom of the cylindrical block, an annular support block is fixedly installed on the bottom inner wall of the circular groove, the top of the annular support block extends into the annular support groove and is slidably connected to the annular support groove, a plurality of balls are rollingly inlaid on the top of the annular support block, and the balls are in contact with the top inner wall of the annular support groove.

[0013] As a further solution of the present invention, a rotating groove is opened at the bottom of the cylindrical block, an inner gear ring is fixedly installed on the top inner wall of the rotating groove, a motor four is fixedly installed on the bottom inner wall of the circular groove, the top of the motor four extends into the rotating groove, a rotating gear two is fixedly installed on the output shaft of the motor four, and the rotating gear two is meshed with the inner gear ring.

[0014] As a further solution of the present invention, a standing groove is provided on the top of the cylindrical block, a rubber anti-skid plate is fixedly installed on the bottom inner wall of the standing groove, and a triangular inclined plate is fixedly installed on one side outer wall of the security inspection base.

[0015] As a further solution of the present invention, a workbench is fixedly installed on the top of the security inspection base, a controller is fixedly installed on the workbench, and a display screen is fixedly installed on the workbench.

[0016] As a further solution of the present invention, a microphone is fixedly installed on the workbench, and a speaker is fixedly installed on the bottom of the top plate, and the speaker is electrically connected to the microphone.

[0017] As a further solution of the present invention, sliding rods are fixedly installed in the corresponding two lifting slots, and the sliding rods are slidably connected to the corresponding auxiliary blocks.

[0018] Compared with the related art, the terahertz security inspection device provided by the present invention, which is suitable for use in security inspection technology, has the following beneficial effects:

[0019] 1. The present invention is provided with a security inspection mechanism, which enables a closed inspection of the person to be inspected, and has the effect of performing double inspection on the person to be inspected to improve the security inspection efficiency;

[0020] 2. The present invention is provided with an adjustment mechanism, which can reflect the terahertz wave by adjusting the height or angle of the reflector and the concave mirror so that the terahertz wave can be propagated in all directions, which has the effect of performing all-round detection on the person to be detected and avoiding blind spots in the inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 It is a schematic side view of the structure of the terahertz security inspection device applicable to security inspection technology of the present invention;

[0023] Figure 2 It is a schematic diagram of the front cross-sectional structure of the terahertz security inspection device applicable to security inspection technology of the present invention;

[0024] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0025] Figure 4 It is a schematic diagram of a side cross-sectional structure of a terahertz security inspection device applicable to security inspection technology of the present invention;

[0026] Figure 5 for Figure 4 A schematic diagram of the enlarged structure of part B;

[0027] Figure 6 for Figure 4 A schematic diagram of the enlarged structure of the middle C part;

[0028] Figure 7 It is an assembly diagram of the annular support block and the ball in the present invention.

[0029] In the figure: 1. security inspection base; 2. self-locking wheel; 3. mounting bracket; 4. back plate; 5. top plate; 6. metal detector; 7. terahertz signal transmitter; 8. terahertz signal receiver; 9. mounting sleeve; 10. reflector; 11. concave mirror; 12. lifting slot; 13. auxiliary block; 14. motor slot 1; 15. motor 1; 16. rotating rod 1; 17. motor slot 2; 18. motor 2; 19. threaded long rod; 20. connecting block; 21. Rotating rod 2; 22. Block; 23. Bevel gear 1; 24. Motor 3; 25. Bevel gear 2; 26. Rectangular groove; 27. Threaded sleeve; 28. Touch floor; 29. ​​Round rod; 30. Double-axis motor; 31. Limit box; 32. Circular groove; 33. Cylindrical block; 34. Annular support block; 35. Motor 4; 36. Rubber anti-skid plate; 37. Triangular inclined plate; 38. Workbench; 39. Display screen; 40. Speaker. DETAILED DESCRIPTION

[0030] Please refer to Figures 1 to 7 ,in, Figure 1 It is a schematic side view of the structure of the terahertz security inspection device applicable to security inspection technology of the present invention; Figure 2 It is a schematic diagram of the front cross-sectional structure of the terahertz security inspection device applicable to security inspection technology of the present invention; Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A; Figure 4 It is a schematic diagram of a side cross-sectional structure of a terahertz security inspection device applicable to security inspection technology of the present invention; Figure 5 for Figure 4 A schematic diagram of the enlarged structure of part B; Figure 6 for Figure 4 A schematic diagram of the enlarged structure of the middle C part; Figure 7The terahertz security inspection device suitable for use in security inspection technology includes a security inspection base 1, on which a security inspection mechanism and two adjustment mechanisms are arranged; the security inspection mechanism includes four self-locking wheels 2, two mounting brackets 3, a back plate 4, a top plate 5, a metal detector 6, two terahertz signal transmitters 7, a plurality of terahertz signal receivers 8, two mounting sleeves 9, a plurality of reflectors 10 and four concave mirrors 11, the four self-locking wheels 2 are fixedly mounted on the bottom of the security inspection base 1, the two mounting brackets 3 are fixedly mounted on the top of the security inspection base 1, the back plate 4 is fixedly mounted on the top of the security inspection base 1, and one of the back plate 4 is fixedly mounted on the top of the security inspection base 1. The side is fixedly connected to the outer wall of one side of the mounting bracket 3, the top plate 5 is fixedly installed on the top of the back plate 4, the bottom of the top plate 5 is fixedly connected to the top of the mounting bracket 3, the metal detector 6 is fixedly installed on one side of the back plate 4, the two terahertz signal transmitters 7 are respectively fixedly installed in the corresponding mounting brackets 3, the multiple terahertz signal receivers 8 are respectively fixedly installed in the corresponding mounting brackets 3, the two mounting sleeves 9 are respectively arranged in the corresponding mounting brackets 3, the multiple reflectors 10 are respectively fixedly installed on the corresponding mounting sleeves 9, and the four concave mirrors 11 are respectively arranged in the corresponding mounting brackets 3;

[0031] The adjustment mechanism includes two lifting slots 12, an auxiliary block 13, a motor slot 14, a motor 15, a rotating rod 16, a motor slot 2 17, a motor 2 18, a threaded long rod 19, a connecting block 20 and two driving components. The two lifting slots 12 are both opened in the mounting bracket 3. The auxiliary block 13 is arranged in the corresponding lifting slot 12. One side of the auxiliary block 13 extends to the outside of the corresponding lifting slot 12. The motor slot 14 is opened on one side outer wall of the auxiliary block 13. The motor 15 is fixedly installed on one side inner wall of the motor slot 14. The rotating rod 16 is fixedly installed on the output shaft of the motor 15. One end of the one 16 extends to the outside of the lifting slot 12, the rotating rod 16 is fixedly connected to the corresponding mounting sleeve 9, the motor slot 2 17 is provided on the bottom inner wall of the corresponding lifting slot 12, the motor 2 18 is fixedly installed on the bottom inner wall of the motor slot 2 17, the threaded long rod 19 is fixedly installed on the output shaft of the motor 2 18, the top end of the threaded long rod 19 extends into the corresponding lifting slot 12 and is rotatably connected to the lifting slot 12, the connecting block 20 is threadedly installed on the threaded long rod 19, one side of the connecting block 20 extends to the outside of the corresponding lifting slot 12, and one side outer wall of the connecting block 20 is rotatably connected to one end of the rotating rod 16;

[0032] The driving assembly includes a rotating rod 21, a block 22, a bevel gear 1 23, a motor 3 24 and a bevel gear 2 25. The rotating rod 21 is rotatably mounted in the mounting bracket 3. The block 22 is fixedly mounted on the rotating rod 21. One side outer wall of the block 22 is fixedly connected to the concave mirror 11. The bevel gear 1 23 is fixedly mounted on the rotating rod 21. The motor 3 24 is fixedly mounted on the bottom inner wall of the mounting bracket 3. The bevel gear 2 25 is fixedly mounted on the output shaft of the motor 3 24. The bevel gear 2 25 is meshed with the bevel gear 1 23.

[0033] like Figure 3 As shown, a rectangular groove 26 is provided at the bottom of the security inspection base 1, and two threaded sleeves 27 are rotatably installed on the top inner wall of the rectangular groove 26, and a threaded short rod is installed on the inner thread of the threaded sleeve 27, and the bottom end of the threaded short rod extends out of the rectangular groove 26, and the bottom ends of the two threaded short rods are fixedly installed with the same contact plate 28, and an external gear ring is fixedly installed on the threaded sleeve 27, and two round rods 29 are rotatably installed on the top inner wall of the rectangular groove 26, and a rotating gear 1 is fixedly installed on the bottom end of the round rod 29, and the rotating gear 1 is meshed with the corresponding external gear ring;

[0034] The rectangular groove 26, the threaded sleeve 27, the threaded short rod, the contact plate 28, the outer gear ring, the round rod 29 and the rotating gear cooperate with each other, so that the contact plate 28 can be indirectly driven to rise and fall by the threaded sleeve 27, thereby avoiding the inability to increase the friction between the security inspection base 1 and the ground due to the inability to rise and fall of the contact plate 28.

[0035] like Figure 3 As shown, a bevel gear three is fixedly mounted on the round rod 29, a dual-axis motor 30 is fixedly mounted on the top inner wall of the rectangular slot 26, a transmission rod is fixedly mounted on both output shafts of the dual-axis motor 30, a bevel gear four is fixedly mounted on one end of the transmission rod, and the bevel gear four is meshed with the corresponding bevel gear three;

[0036] The bevel gear three, the double-axis motor 30, the transmission rod and the bevel gear four cooperate with each other, so that the two round rods 29 can be indirectly controlled by the double-axis motor 30 to rotate synchronously, thereby avoiding the round rods 29 being unable to rotate synchronously and causing the contact floor 28 to be unable to descend horizontally.

[0037] like Figure 3 As shown, two limit boxes 31 are fixedly installed on the top inner wall of the rectangular groove 26, and a T-shaped slide bar is arranged in the limit box 31. The bottom end of the T-shaped slide bar extends out of the rectangular groove 26, and the T-shaped slide bar is slidably connected to the limit box 31. The bottom end of the T-shaped slide bar is fixedly connected to the top of the contact plate 28;

[0038] The limit box 31 and the T-shaped slide bar cooperate with each other to limit the moving distance of the threaded short rod by the T-shaped slide bar, thereby preventing the threaded short rod from being separated from the threaded sleeve 27 and causing malfunction of normal operation.

[0039] like Figure 3 and Figure 7 As shown, a circular groove 32 is provided at the top of the security inspection base 1, a cylindrical block 33 is rotatably installed in the circular groove 32, the top of the cylindrical block 33 extends to the outside of the circular groove 32, an annular support groove is provided at the bottom of the cylindrical block 33, an annular support block 34 is fixedly installed on the bottom inner wall of the circular groove 32, the top of the annular support block 34 extends into the annular support groove and is slidably connected to the annular support groove, a plurality of balls are rollingly inlaid on the top of the annular support block 34, and the balls are in contact with the top inner wall of the annular support groove;

[0040] The circular groove 32, the cylindrical block 33, the annular support groove, the annular support block 34 and the ball bearing cooperate with each other to form a support force for the cylindrical block 33 through the annular support block 34, thereby preventing the cylindrical block 33 from having insufficient support force and being unable to carry out testing for people of different weights.

[0041] like Figure 3 As shown, a rotation groove is provided at the bottom of the cylindrical block 33, an inner gear ring is fixedly installed on the top inner wall of the rotation groove, a motor 4 35 is fixedly installed on the bottom inner wall of the circular groove 32, the top of the motor 4 35 extends into the rotation groove, a rotation gear 2 is fixedly installed on the output shaft of the motor 4 35, and the rotation gear 2 is meshed with the inner gear ring;

[0042] The rotating groove, the inner gear ring, the motor four 35 and the rotating gear two cooperate with each other, so that the cylindrical block 33 can be indirectly controlled to rotate by the motor four 35, thereby avoiding the cylindrical block 33 being unable to rotate and thus being unable to drive the person to be tested to perform full-body detection.

[0043] like Figure 1 and Figure 3 As shown, a standing groove is provided at the top of the cylindrical block 33, a rubber anti-slip plate 36 is fixedly installed on the inner wall of the bottom of the standing groove, and a triangular inclined plate 37 is fixedly installed on the outer wall of one side of the security inspection base 1;

[0044] The standing groove, the rubber anti-slip plate 36 and the triangular inclined plate 37 cooperate with each other to form a safety inspection for the person to be tested assisted by the rubber anti-slip plate 36 and the triangular inclined plate 37, thereby preventing the person to be tested from being unable to remain stable when the cylindrical block 33 rotates.

[0045] like Figure 1As shown, a workbench 38 is fixedly installed on the top of the security inspection base 1, a controller is fixedly installed on the workbench 38, and a display screen 39 is fixedly installed on the workbench 38;

[0046] Through the cooperation among the workbench 38, the controller and the display screen 39, the operator can control the relevant devices in real time to conduct safety inspections, thus avoiding the inability to control the relevant devices and causing malfunctions.

[0047] like Figure 1 and Figure 2 As shown, a microphone is fixedly mounted on the workbench 38, and a speaker 40 is fixedly mounted on the bottom of the top plate 5, and the speaker 40 is electrically connected to the microphone;

[0048] The microphone and the loudspeaker 40 cooperate with each other, so that the staff can communicate with the person to be tested through the microphone, thereby avoiding the inability to communicate with the person to be tested.

[0049] like Figure 5 As shown, a sliding rod is fixedly installed in each of the two corresponding lifting slots 12, and the sliding rod is slidably connected with the corresponding auxiliary block 13;

[0050] The sliding rod and the auxiliary block 13 cooperate with each other to limit the auxiliary block 13 by the sliding rod, thereby preventing the auxiliary block 13 from rotating under the drive of the connecting block 20 and causing the rotating rod 16 to be unable to rise and fall normally.

[0051] The working principle of the terahertz security inspection device suitable for use in security inspection technology provided by the present invention is as follows:

[0052] The first step: when it is necessary to conduct a safety check on the inspected person, the inspected person first stands on the rubber anti-slip plate 36 through the triangular inclined plate 37. At this time, the backstage operator adjusts the parameters through the controller to conduct a safety check. First, the metal detector 6, the terahertz signal transmitter 7, the terahertz signal receiver 8, the motor 15, the motor 2 18, the motor 3 24 and the motor 4 35 are started. First, the metal detector 6 performs metal detection on the inspected person. The terahertz signal transmitter 7 transmits a terahertz signal, which is reflected by the reflector 10 and the concave mirror 11 and received by multiple terahertz signal receivers 8. At the same time, the motor 15 drives the rotating rod 16 to rotate, the rotating rod 16 drives the installation sleeve 9 to rotate, and the installation sleeve 9 drives the reflector 10 to rotate. At the same time, the motor 2 18 drives the threaded long rod 19 to rotate, and the threaded long rod 19 drives the connecting block 20 to rise and fall. Block 20 drives rotating rod 16 to be lifted and lowered, so that reflector 10 can be lifted and lowered to increase the reflection angle, and motor 3 24 drives bevel gear 2 25 to rotate, bevel gear 2 25 drives bevel gear 1 23 to rotate, bevel gear 1 23 drives rotating rod 21 to rotate, rotating rod 21 drives block 22 to rotate, block 22 drives concave mirror 11 to rotate, through the rotation of reflector 10 and concave mirror 11, it can reflect terahertz signal to the greatest extent, and detect the personnel to be detected without dead angle, and at the same time, it can accurately detect the different heights of the personnel to be detected by lifting and lowering the reflector 10, motor 4 35 drives rotating gear 2 to rotate, rotating gear 2 drives the inner gear ring to rotate, the inner gear ring drives cylindrical block 33 to rotate, cylindrical block 33 drives the personnel to be detected to rotate, and completes the all-round detection of the personnel to be detected;

[0053] The second step: when the security inspection base 1 is pushed to the specified position by the self-locking wheel 2, it is first self-locked by the self-locking wheel 2, and then the double-axis motor 30 is started, the double-axis motor 30 drives the transmission rod to rotate, the transmission rod drives the two bevel gears four to rotate, the bevel gear four drives the bevel gear three to rotate, the bevel gear three drives the round rod 29 to rotate, the round rod 29 drives the rotating gear one to rotate, the rotating gear one drives the outer gear ring to rotate, and the outer gear ring drives the threaded sleeve 27 to rotate, so that the two threaded sleeves 27 keep synchronous and opposite rotation, the threaded sleeve 27 drives the threaded short rod to rise and fall, the threaded surfaces of the two threaded short rods and the corresponding threaded sleeve 27 are opposite to each other, so that when the threaded sleeve 27 rotates in opposite directions, the two threaded short rods can keep synchronous lifting and falling, and the threaded short rods drive the contact floor 28 to descend until the contact floor 28 is tightly fitted with the ground, thereby increasing the friction between the security inspection base 1 and the ground and preventing the security inspection base 1 from deviating greatly.

[0054] It should be noted that the device structure and the drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above invention, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field.

[0055] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0056] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments or applied directly or indirectly without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A terahertz security inspection device suitable for use in security inspection technology, characterized in that: include: A security inspection base, on which a security inspection mechanism and two adjustment mechanisms are arranged; The security inspection mechanism includes four self-locking wheels, two mounting brackets, a back plate, a top plate, a metal detector, two terahertz signal transmitters, a plurality of terahertz signal receivers, two mounting sleeves, a plurality of reflectors and four concave mirrors. The four self-locking wheels are fixedly mounted on the bottom of the security inspection base, the two mounting brackets are fixedly mounted on the top of the security inspection base, the back plate is fixedly mounted on the top of the security inspection base, one side of the back plate is fixedly connected to the outer wall of one side of the mounting bracket, the top plate is fixedly mounted on the top of the back plate, the bottom of the top plate is fixedly connected to the top of the mounting bracket, the metal detector is fixedly mounted on one side of the back plate, the two terahertz signal transmitters are respectively fixedly mounted in the corresponding mounting brackets, the plurality of terahertz signal receivers are respectively fixedly mounted in the corresponding mounting brackets, the two mounting sleeves are respectively arranged in the corresponding mounting brackets, the plurality of reflectors are respectively fixedly mounted on the corresponding mounting sleeves, and the four concave mirrors are respectively arranged in the corresponding mounting brackets; The adjusting mechanism comprises two lifting slots, an auxiliary block, a motor slot 1, a motor 1, a rotating rod 1, a motor slot 2, a motor 2, a threaded long rod, a connecting block and two driving components, the two lifting slots are both arranged in the mounting bracket, the auxiliary block is arranged in the corresponding lifting slot, one side of the auxiliary block extends to the outside of the corresponding lifting slot, the motor slot 1 is arranged on the outer wall of one side of the auxiliary block, the motor 1 is fixedly mounted on the inner wall of one side of the motor slot 1, the rotating rod 1 is fixedly mounted on the output shaft of the motor 1, one end of the rotating rod 1 extends to the outside of the lifting slot, the rotating rod 1 is fixedly connected to the corresponding mounting sleeve, the motor slot 2 is arranged on the bottom inner wall of the corresponding lifting slot, the motor 2 is fixedly mounted on the bottom inner wall of the motor slot 2, the threaded long rod is fixedly mounted on the output shaft of the motor 2, the top end of the threaded long rod extends into the corresponding lifting slot and is rotatably connected to the lifting slot, the connecting block is threadedly mounted on the threaded long rod, one side of the connecting block extends to the outside of the corresponding lifting slot, and one side outer wall of the connecting block is rotatably connected to one end of the rotating rod 1; The driving assembly includes a rotating rod 2, a block, a bevel gear 1, a motor 3 and a bevel gear 2. The rotating rod 2 is rotatably mounted in a mounting bracket, the block is fixedly mounted on the rotating rod 2, an outer wall of one side of the block is fixedly connected to a concave mirror, the bevel gear 1 is fixedly mounted on the rotating rod 2, the motor 3 is fixedly mounted on the bottom inner wall of the mounting bracket, the bevel gear 2 is fixedly mounted on the output shaft of the motor 3, and the bevel gear 2 is meshed with the bevel gear 1.

2. The terahertz security inspection device suitable for use in security inspection technology according to claim 1, characterized in that: A rectangular groove is provided at the bottom of the security inspection base, and two threaded sleeves are rotatably installed on the top inner wall of the rectangular groove. A threaded short rod is installed on the inner thread of the threaded sleeve, and the bottom end of the threaded short rod extends out of the rectangular groove. The bottom ends of the two threaded short rods are fixedly installed with the same contact plate, and an external gear ring is fixedly installed on the threaded sleeve. Two round rods are rotatably installed on the top inner wall of the rectangular groove, and a rotating gear 1 is fixedly installed on the bottom end of the round rod, and the rotating gear 1 is meshed with the corresponding external gear ring.

3. The terahertz security inspection device suitable for use in security inspection technology according to claim 2, characterized in that: A bevel gear three is fixedly mounted on the round rod, a dual-axis motor is fixedly mounted on the top inner wall of the rectangular groove, a transmission rod is fixedly mounted on both output shafts of the dual-axis motor, a bevel gear four is fixedly mounted on one end of the transmission rod, and the bevel gear four is meshed with the corresponding bevel gear three.

4. The terahertz security inspection device suitable for use in security inspection technology according to claim 2, characterized in that: Two limit boxes are fixedly installed on the top inner wall of the rectangular groove, a T-shaped slide bar is arranged in the limit box, the bottom end of the T-shaped slide bar extends out of the rectangular groove, the T-shaped slide bar is slidably connected to the limit box, and the bottom end of the T-shaped slide bar is fixedly connected to the top of the contact plate.

5. The terahertz security inspection device suitable for use in security inspection technology according to claim 1, characterized in that: A circular groove is provided on the top of the security inspection base, a cylindrical block is rotatably installed in the circular groove, the top of the cylindrical block extends out of the circular groove, an annular support groove is provided at the bottom of the cylindrical block, an annular support block is fixedly installed on the bottom inner wall of the circular groove, the top of the annular support block extends into the annular support groove and is slidably connected to the annular support groove, a plurality of balls are rollingly inlaid on the top of the annular support block, and the balls are in contact with the top inner wall of the annular support groove.

6. The terahertz security inspection device suitable for use in security inspection technology according to claim 5, characterized in that: A rotating groove is provided at the bottom of the cylindrical block, an inner gear ring is fixedly installed on the top inner wall of the rotating groove, a motor four is fixedly installed on the bottom inner wall of the circular groove, the top of the motor four extends into the rotating groove, a rotating gear two is fixedly installed on the output shaft of the motor four, and the rotating gear two is meshed with the inner gear ring.

7. The terahertz security inspection device suitable for use in security inspection technology according to claim 5, characterized in that: A standing groove is provided on the top of the cylindrical block, a rubber anti-slip plate is fixedly installed on the bottom inner wall of the standing groove, and a triangular inclined plate is fixedly installed on one side outer wall of the security inspection base.

8. The terahertz security inspection device suitable for use in security inspection technology according to claim 1, characterized in that: A workbench is fixedly installed on the top of the security inspection base, a controller is fixedly installed on the workbench, and a display screen is fixedly installed on the workbench.

9. The terahertz security inspection device suitable for use in security inspection technology according to claim 8, characterized in that: A microphone is fixedly installed on the workbench, and a speaker is fixedly installed on the bottom of the top plate. The speaker is electrically connected to the microphone.

10. The terahertz security inspection device suitable for use in security inspection technology according to claim 1, characterized in that: A sliding rod is fixedly installed in each of the two corresponding lifting slots, and the sliding rod is slidably connected with the corresponding auxiliary block.

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