CN111856607A - Terahertz-based rapid security check instrument - Google Patents
Terahertz-based rapid security check instrument Download PDFInfo
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- CN111856607A CN111856607A CN202010772157.1A CN202010772157A CN111856607A CN 111856607 A CN111856607 A CN 111856607A CN 202010772157 A CN202010772157 A CN 202010772157A CN 111856607 A CN111856607 A CN 111856607A
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- 238000007689 inspection Methods 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims 3
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 14
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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Abstract
The invention discloses a terahertz-based rapid security check instrument, which comprises a workbench and a transmission frame, wherein a plurality of rolling shafts are arranged between the workbench, two ends of each rolling shaft are respectively rotatably connected with the side walls of two sides of the workbench, a first stop lever is driven to rotate clockwise around a first rotating shaft by a pushing spring, a second stop lever is driven by an intermediate lever to rotate anticlockwise around a second rotating shaft, the first stop lever and the second stop lever move into an intermediate box, a box body passes through the intermediate box under the driving of a conveyor belt to complete security check work, the spring is arranged to play a role of buffering, the box body can collide with a pulley on the first stop lever under the driving of the conveyor belt to avoid damaging a hydraulic cylinder, the box body can generate a slip phenomenon between the box body and the conveyor belt after being blocked by the first stop lever to stop moving for security check, when the first stop lever is damaged, the second stop lever can play a standby role so that the device continues to operate.
Description
Technical Field
The invention relates to the field of security check equipment, in particular to a rapid security check instrument based on terahertz.
Background
The security inspection machine is widely applied to airports, railway stations, subway stations, bus stations, government buildings, embassy, conference centers, exhibition centers, hotels, shopping malls, large-scale activities, post offices, schools, logistics industries, industrial detection and the like. Wherein security installations based on terahertz has the characteristics such as detect accurately, radiate for a short time.
When the existing security inspection instrument is used, when the sizes of the cargo boxes are different, the distance between the two conveying frames cannot be adjusted, the security inspection instrument is only suitable for inspecting the boxes with the same size, the detection work of the boxes with different sizes cannot be met, the application range of the device is small, and the safety inspection of the boxes is inconvenient; the existing security inspection instrument cannot adjust the height of the detecting instrument and shorten the distance between the detecting instrument and the box body in the use process, and the distance between the detecting instrument and the box body is large, so that the detection is inaccurate; the existing security check instrument has the advantages that in the using process, the box body cannot be stopped below the detecting instrument, the checking is not thorough, the box body can collide with the pulley on the first stop lever under the driving of the conveying belt, the hydraulic cylinder is easy to damage, when the first stop lever is damaged, the device cannot continue to operate, and no standby equipment exists.
Disclosure of Invention
The invention aims to provide a rapid security check instrument based on terahertz, which aims to solve the problems that the distance between two conveying frames cannot be adjusted when the sizes of cargo boxes are different in the using process of the conventional security check instrument, the conventional security check instrument is only suitable for checking boxes with the same size and size, the detection work of boxes with different sizes and sizes cannot be met, the application range of the device is small, and the safe checking of the boxes is inconvenient; the existing security inspection instrument cannot adjust the height of the detecting instrument and shorten the distance between the detecting instrument and the box body in the use process, and the distance between the detecting instrument and the box body is large, so that the detection is inaccurate; the existing security check instrument has the advantages that in the using process, the box body cannot be stopped below the detecting instrument, the checking is not thorough, the box body can collide with the pulley on the first stop lever under the driving of the conveying belt, the hydraulic cylinder is easy to damage, when the first stop lever is damaged, the device cannot continue to operate, and the problem of standby equipment is avoided.
The purpose of the invention can be realized by the following technical scheme:
a rapid security inspection instrument based on terahertz comprises a workbench and a conveying frame, wherein a plurality of rolling shafts are arranged between the workbench, two ends of each rolling shaft are respectively rotatably connected with the side walls of two sides of the workbench, lifting columns are respectively and fixedly connected with the middle positions of the side walls of the two sides of the workbench and are respectively vertical to the workbench, sliding grooves are respectively formed in the side walls of the opposite sides of the two lifting columns, a transverse shaft is arranged between the two lifting columns, a sliding block is respectively and fixedly arranged at two ends of each transverse shaft, the two sliding blocks respectively penetrate through the two sliding grooves and are arranged inside the two lifting columns, a limiting rod is arranged inside one of the lifting columns, a limiting sleeve hole is formed in the sliding block inside the lifting column, a threaded sleeve hole is formed in the sliding block on one side of the limiting sleeve hole, the limiting rod penetrates through the inside of the limiting sleeve hole, a screw rod is arranged on one side of the limiting rod and, the screw rod penetrates through the threaded sleeve hole and is in threaded connection with the threaded sleeve hole, the top end of the screw rod penetrates through the top surface of the lifting column and extends out of the outer side of the lifting column, and a rocker is fixedly arranged on the end surface of the screw rod extending out of the outer side of the lifting column;
a counter is arranged on the side wall of one side of the cross shaft, a limiting plate is arranged on the side wall of the other side of the cross shaft, a detecting instrument is arranged on one side of the limiting plate, conveying frames are respectively arranged on two sides of the top surface of the workbench, a conveying wheel is respectively arranged at one end of each conveying frame, a driving wheel is arranged at the other end of each conveying frame, a conveying belt is arranged between the driving wheel and the conveying wheel, a motor is arranged at the bottom of the driving wheel, the output end of the motor is in transmission connection with the driving wheel, transverse rods are respectively arranged at two ends inside the workbench, two ends of each transverse rod are respectively arranged on the inner walls of two sides of the workbench and are in rotary connection with the inner walls of two sides of the workbench, threads are respectively arranged at two structural ends of each transverse rod, nut sleeves are respectively arranged at two ends of each, the inside of workstation between two lift posts is provided with the middle box, the bottom both ends of middle box are provided with the crossbeam respectively, the both ends of every crossbeam respectively with the bottom both ends fixed connection of workstation, the inside one end of middle box is provided with first pivot, it is connected with first pin to rotate on the first pivot, one side of first pivot is provided with the second pivot, it is connected with the second pin to rotate in the second pivot, be provided with the intermediate lever between first pin and the second pin, the one end of intermediate lever is articulated with the bottom of second pin, the other end of intermediate lever is articulated with the lateral wall of first pin, the inside of middle box is provided with the pneumatic cylinder, the inside of pneumatic cylinder is provided with the piston rod, be provided with the spring between the one end of piston rod and the bottom of first pin.
As a further scheme of the invention: the bottom of screw rod sets up on the inside bottom surface of lift post, and the junction of screw rod and lift post is provided with the bearing, and the junction of screw rod and the top surface of lift post also is provided with the bearing for the screw rod can be in the inside free rotation of lift post to realize the position control work of cross axle.
As a further scheme of the invention: the inside of every lift post is hollow structure, and the contact surface between the inner wall of lift post and the slider is the smooth surface, reduces frictional force, is convenient for the slider at the inside removal of lift post.
As a further scheme of the invention: the top of first pin and second pin is provided with the pulley respectively, the axis of two pulleys is rotated with the top of two pins and is connected, the box is tight to be carried on forward through the conveyer belt clamp on two conveying framves, when the box moved the position of first pin, the pulley bumping post box on first pin top moved, make the detection instrument fully scan the affirmation to the inside article of box, it removes to the cylinder body outside to control its inside piston rod through the pneumatic cylinder after the scanning is accomplished, make first pin take place clockwise rotation around first pivot through promoting the spring, promote the second pin through the intermediate lever simultaneously, make the second pin rotate around the second pivot anticlockwise, first pin and second pin move the inside of intermediate box, the box passes through the intermediate box under the drive of conveyer belt, accomplish the safety inspection work.
As a further scheme of the invention: the structure both ends position of every horizontal pole sets up setscrew thread respectively, the nut sleeve pipe sets up the screw thread position on the horizontal pole and passes through threaded connection with the horizontal pole, and two nut sheathed tube threaded connection opposite direction on the same horizontal pole, the horizontal pole rotates, because two nut sheathed tube threaded connection opposite direction on the same horizontal pole, make two nut sleeves take place syntropy or dorsad removal, then make the distance between two conveying framves change, realize the distance regulation between two conveying framves, satisfy not unidimensional big or small box detection achievement, improve the application scope of device, be convenient for carry out box safety inspection.
As a further scheme of the invention: the one end of spring and the bottom fixed connection of first pin, the other end of spring and the one end fixed connection of piston rod, the setting of spring plays the cushioning effect, and the box can collide with the pulley on the first pin under the drive of conveyer belt, avoids damaging the pneumatic cylinder, and the box can take place the phenomenon of skidding after blockking of first pin between can and the conveyer belt for the box stops to remove and carries out the safety inspection.
As a further scheme of the invention: the height position of the second stop lever is the same as that of the first stop lever, and when the first stop lever is damaged, the second stop lever can play a standby role, so that the device continues to operate.
As a further scheme of the invention: the bottom four corners position of workstation is provided with the support column respectively, and the gyro wheel is all installed to the bottom of every support column, and one side of workstation is provided with the electric cabinet, and the device of being convenient for removes and places.
The using method of the rapid security check instrument specifically comprises the following steps:
the method comprises the following steps: the box body needing security inspection is placed at the top of the workbench, two ends of each cross rod are respectively provided with a thread, nut sleeves are arranged at the thread positions on the cross rods and are in threaded connection with the cross rods, the threaded connection directions of the two nut sleeves on the same cross rod are opposite, the cross rods are rotated, and the two nut sleeves move in the same direction or in the opposite direction due to the fact that the threaded connection directions of the two nut sleeves on the same cross rod are opposite, so that the distance between the two conveying frames is changed, and the distance adjustment between the two conveying frames is realized;
step two: when the screw rod rotates, the screw rod is connected with a nut sleeve in the sliding block through threads, so that the sliding block moves downwards, the transverse shaft moves downwards, the limiting plate is close to the top surface of the box body, the output end of the motor drives the driving wheel to rotate, the conveying belt between the driving wheel and the conveying wheel rotates, and the conveying box body moves;
step three: the box is tight through the conveyer belt on two conveying framves and is carried out the conveying forward tightly, when the box moved the position of first pin, the pulley bumping post box on first pin top moves, make the detection instrument carry out abundant scanning to the inside article of box and confirm, it removes to the cylinder body outside to control its inside piston rod through the pneumatic cylinder after the scanning is accomplished, make first pin take place clockwise rotation around first pivot through promoting the spring, promote the second pin through the intermediate lever simultaneously, make the second pin around second pivot anticlockwise rotation, first pin and second pin remove the inside of intermediate box, the box passes through the intermediate box under the drive of conveyer belt, accomplish safety inspection work.
The invention has the beneficial effects that:
1. according to the invention, two ends of each cross rod are respectively provided with a thread, nut sleeves are arranged at the thread positions on the cross rods and are in threaded connection with the cross rods, the threaded connection directions of the two nut sleeves on the same cross rod are opposite, and the cross rods are rotated;
2. according to the invention, the rocker is rotated to rotate the screw rod, when the screw rod rotates, the screw rod is in threaded connection with the nut sleeve in the sliding block, so that the sliding block moves downwards, the transverse shaft moves downwards, the limiting plate is close to the top surface of the box body, the output end of the motor drives the driving wheel to rotate, the conveying belt between the driving wheel and the conveying wheel rotates, the conveying box body moves, the height of the detecting instrument can be adjusted, the distance between the detecting instrument and the box body is shortened, and the detection is more accurate;
3. in the invention, when the box body moves to the position of the first stop lever, the pulley stop column box body at the top end of the first stop lever moves to ensure that the detector fully scans and confirms objects in the box body, the piston rod in the box body is controlled to move towards the outer side of the cylinder body through the hydraulic cylinder after scanning is finished, the first stop lever rotates clockwise around the first rotating shaft through the pushing spring, the second stop lever is pushed through the intermediate lever at the same time, the second stop lever rotates anticlockwise around the second rotating shaft, the first stop lever and the second stop lever move into the intermediate box, the box body passes through the intermediate box under the driving of the conveyor belt to finish safety inspection work, the arrangement of the spring plays a buffering role, the box body can collide with the pulley on the first stop lever under the driving of the conveyor belt to avoid damaging the hydraulic cylinder, and the box body can slip with the conveyor belt after being blocked by the first stop lever, make the box stop to remove and carry out the safety inspection, when first pin damaged, the second pin can play standby effect for the device continues the operation.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic overall structure diagram of a terahertz-based rapid security inspection instrument according to the present invention;
FIG. 2 is a front view of FIG. 1 in accordance with the present invention;
FIG. 3 is a top view of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic view of the screw according to the present invention;
FIG. 5 is a schematic view of the cross bar of the present invention;
FIG. 6 is a schematic view showing the construction of an intermediate tank according to the present invention;
fig. 7 is a schematic structural view of the hydraulic cylinder of the present invention.
In the figure: 1. a roller; 2. a support pillar; 3. a driving wheel; 4. a conveyor belt; 5. a transfer frame; 6. a roller; 7. a detector; 8. a lifting column; 9. an electric cabinet; 10. a work table; 11. a limiting plate; 12. a rocker; 13. a counter; 14. moving the column; 15. a nut sleeve; 16. a cross bar; 17. a motor; 18. limiting sleeve holes; 19. threading trepanning; 20. a horizontal axis; 21. a screw; 22. a chute; 23. a first bar; 24. an intermediate box; 25. a second bar; 26. a first rotating shaft; 27. a pulley; 28. an intermediate lever; 29. a spring; 30. a piston rod; 31. a hydraulic cylinder; 32. a second rotating shaft; 33. a limiting rod.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-7, a terahertz-based rapid security inspection instrument comprises a workbench 10 and a transmission frame 5, wherein a plurality of rollers 6 are arranged between the workbench 10, two ends of each roller 6 are respectively rotatably connected with the side walls of two sides of the workbench 10, lifting columns 8 are respectively fixedly connected with the middle positions of the side walls of two sides of the workbench 10, the two lifting columns 8 are respectively perpendicular to the workbench 10, sliding grooves 22 are respectively arranged on the side walls of the two opposite sides of the two lifting columns 8, a transverse shaft 20 is arranged between the two lifting columns 8, two ends of each transverse shaft 20 are respectively fixedly provided with a sliding block, the two sliding blocks are respectively arranged inside the two lifting columns 8 through the two sliding grooves 22, a limit rod 33 is arranged inside one lifting column 8, a limit sleeve hole 18 is arranged on the sliding block inside the lifting column 8, a threaded sleeve hole 19 is arranged on the sliding block on one side of the limit sleeve hole 18, the limit rod 33 passes through the inside the limit sleeve hole 18, one side of gag lever post 33 is provided with screw rod 21, and gag lever post 33 is parallel with screw rod 21, and screw rod 21 passes threaded sleeve hole 19 and passes through threaded connection with threaded sleeve hole 19, and the top of screw rod 21 passes the top surface of lift post 8 and stretches out the outside of lift post 8, and is provided with rocker 12 on stretching out the terminal surface of the screw rod 21 outside lift post 8 fixedly.
A counter 13 is arranged on the side wall of one side of the cross shaft 20, a limit plate 11 is arranged on the side wall of the other side of the cross shaft 20, a detector 7 is arranged on one side of the limit plate 11, the type of the detector 7 is Tera-K15, conveying frames 5 are respectively arranged on two sides of the top surface of the workbench 10, a conveying wheel is respectively arranged at one end of each conveying frame 5, a driving wheel 3 is arranged at the other end of each conveying frame 5, a conveying belt 4 is arranged between the driving wheel 3 and the conveying wheel, a motor 17 is arranged at the bottom of the driving wheel 3, the output end of the motor 17 is in transmission connection with the driving wheel 3, cross rods 16 are respectively arranged at two ends inside the workbench 10, two ends of each cross rod 16 are respectively arranged on the inner walls on two sides of the workbench 10 and are in rotation connection with the inner walls on two sides of the workbench 10, threads, the top of each nut sleeve 15 is welded with a movable column 14, the top end of each movable column 14 is connected with the bottom surface of the conveying frame 5, a middle box 24 is arranged inside the workbench 10 between the two lifting columns 8, the two ends of the bottom of the middle box 24 are provided with cross beams respectively, the two ends of each cross beam are fixedly connected with the two ends of the bottom of the workbench 10 respectively, one end inside the middle box 24 is provided with a first rotating shaft 26, the first rotating shaft 26 is rotatably connected with a first stop lever 23, one side of the first rotating shaft 26 is provided with a second rotating shaft 32, the second rotating shaft 32 is rotatably connected with a second stop lever 25, a middle lever 28 is arranged between the first stop lever 23 and the second stop lever 25, one end of the middle lever 28 is hinged with the bottom end of the second stop lever 25, the other end of the middle lever 28 is hinged with the side wall of the first stop lever 23, the inside of the middle box 24 is provided with a hydraulic cylinder 31, the inside, a spring 29 is arranged between one end of the piston rod 30 and the bottom end of the first stop lever 23, when in use, a box body to be subjected to security inspection is placed at the top of the workbench 10, two structural ends of each cross rod 16 are respectively provided with a thread, the nut sleeves 15 are arranged at thread positions on the cross rods 16 and are in threaded connection with the cross rods 16, the thread connection directions of the two nut sleeves 15 on the same cross rod 16 are opposite, the cross rods 16 are rotated, the two nut sleeves 15 move in the same direction or in the opposite direction due to the opposite thread connection directions of the two nut sleeves 15 on the same cross rod 16, so that the distance between the two conveying frames 5 is changed, the distance adjustment between the two conveying frames 5 is realized, the box body is clamped between the two conveying belts 4, the box body fixing work is realized, the box body detection work of different sizes is met, and the application range of the device is improved, the safety inspection of the box body is convenient; the rocker 12 is rotated to enable the screw 21 to rotate, when the screw 21 rotates, the screw 21 is in threaded connection with the nut sleeve 15 inside the slider, the slider moves downwards, the transverse shaft 20 moves downwards, the limiting plate 11 is close to the top surface of the box body, the driving wheel 3 is driven to rotate through the output end of the motor 17, the conveying belt 4 between the driving wheel 3 and the conveying wheel rotates, the conveying box body moves, the height of the detecting instrument 7 can be adjusted, the distance between the detecting instrument 7 and the box body is shortened, and detection is more accurate; the box body is clamped by the conveyor belts 4 on the two conveyor frames 5 and conveyed forwards, when the box body moves to the position of the first stop lever 23, the pulley 27 at the top end of the first stop lever 23 stops the column box body to move, so that the detector 7 fully scans and confirms objects in the box body, after the scanning is finished, the hydraulic cylinder 31 controls the piston rod 30 in the box body to move towards the outer side of the cylinder body, the spring 29 is pushed to enable the first stop lever 23 to rotate clockwise around the first rotating shaft 26, the middle lever 28 pushes the second stop lever 25 to enable the second stop lever 25 to rotate anticlockwise around the second rotating shaft 32, the first stop lever 23 and the second stop lever 25 move into the middle box 24, the box body is driven by the conveyor belts 4 to pass through the middle box 24 to finish the security inspection work, the arrangement of the spring 29 plays a buffering role, the box body can collide with the pulley 27 on the first stop lever 23 under the drive of the conveyor belts 4, avoid damaging pneumatic cylinder 31, the box can take place the phenomenon of skidding after blockking of first pin 23 with between the conveyer belt 4 for the box stops to remove and carries out the safety inspection, and when first pin 23 damaged, second pin 25 can play the standby effect, makes the device continue to operate.
The bottom end of the screw 21 is arranged on the inner bottom surface of the lifting column 8, a bearing is arranged at the joint of the screw 21 and the lifting column 8, and a bearing is also arranged at the joint of the screw 21 and the top surface of the lifting column 8, so that the screw 21 can freely rotate in the lifting column 8 to realize the position adjustment work of the transverse shaft 20.
The inside of every lift post 8 is hollow structure, and the contact surface between the inner wall of lift post 8 and the slider is the smooth surface, reduces frictional force, is convenient for the slider at the inside removal of lift post 8.
The top ends of the first stop lever 23 and the second stop lever 25 are respectively provided with a pulley 27, the middle shafts of the two pulleys 27 are rotatably connected with the top ends of the two stop levers, the box body is clamped by the conveyor belts 4 on the two conveying frames 5 and conveyed forwards, when the box body moves to the position of the first stop lever 23, the pulley 27 on the top end of the first stop lever 23 stops the column box body to move, so that the detector 7 fully scans and confirms the objects in the box body, the piston rod 30 in the box body is controlled by the hydraulic cylinder 31 to move towards the outer side of the box body after scanning is finished, the first stop lever 23 rotates clockwise around the first rotating shaft 26 by pushing the spring 29, meanwhile, the second stop lever 25 is pushed by the intermediate lever 28, so that the second stop lever 25 rotates anticlockwise around the second rotating shaft 32, the first stop lever 23 and the second stop lever 25 move into the intermediate box 24, and the box body passes through the intermediate box 24 under the driving of, and finishing the security check work.
The structure both ends position of every horizontal pole 16 sets up setscrew thread respectively, nut sleeve 15 sets up the screw thread position on horizontal pole 16 and passes through threaded connection with horizontal pole 16, and two nut sleeve 15's on same horizontal pole 16 threaded connection opposite direction, rotate horizontal pole 16, because two nut sleeve 15's on the same horizontal pole 16 threaded connection opposite direction, make two nut sleeve 15 take place syntropy or move dorsad, then make between two conveying frame 5 apart from changing, realize the distance adjustment between two conveying frame 5, satisfy not unidimensional big or small box detection achievement, the application scope of the improvement device, be convenient for carry out box safety inspection.
One end of spring 29 and the bottom fixed connection of first pin 23, the other end of spring 29 and the one end fixed connection of piston rod 30, spring 29's setting plays the cushioning effect, and the box can produce the collision with pulley 27 on the first pin 23 under the drive of conveyer belt 4, avoids damaging pneumatic cylinder 31, and the box can take place the phenomenon of skidding after blockking of first pin 23 and between the conveyer belt 4 for the box stop motion carries out the safety inspection.
The height position of the second stop lever 25 is the same as that of the first stop lever 23, and when the first stop lever 23 is damaged, the second stop lever 25 can play a standby role, so that the device continues to operate.
The bottom four corners position of workstation 10 is provided with support column 2 respectively, and gyro wheel 1 is all installed to the bottom of every support column 2, and one side of workstation 10 is provided with electric cabinet 9, and the device of being convenient for removes and places.
The using method of the rapid security check instrument specifically comprises the following steps:
the method comprises the following steps: the box body to be subjected to security inspection is placed at the top of the workbench 10, two ends of each cross rod 16 are respectively provided with a thread, the nut sleeves 15 are arranged at the thread positions on the cross rods 16 and are in threaded connection with the cross rods 16, the threaded connection directions of the two nut sleeves 15 on the same cross rod 16 are opposite, the cross rod 16 is rotated, and due to the fact that the threaded connection directions of the two nut sleeves 15 on the same cross rod 16 are opposite, the two nut sleeves 15 move in the same direction or in the opposite direction, the distance between the two conveying frames 5 is changed, and the distance adjustment between the two conveying frames 5 is achieved;
step two: the rocker 12 is rotated to enable the screw 21 to rotate, when the screw 21 rotates, the screw 21 is in threaded connection with the nut sleeve 15 in the sliding block, so that the sliding block moves downwards, the transverse shaft 20 moves downwards, the limiting plate 11 is close to the top surface of the box body, the output end of the motor 17 drives the driving wheel 3 to rotate, the conveying belt 4 between the driving wheel 3 and the conveying wheel rotates, and the conveying box body moves;
step three: the box is tightly pressed by the conveyor belts 4 on the two conveying frames 5 and is conveyed forwards, when the box moves to the position of the first stop lever 23, the pulley 27 stop column box at the top end of the first stop lever 23 moves, the detector 7 can fully scan and confirm articles in the box, the piston rod 30 in the first stop lever 23 is controlled by the hydraulic cylinder 31 to move towards the outer side of the cylinder body after scanning is completed, the first stop lever 23 rotates clockwise around the first rotating shaft 26 by pushing the spring 29, the second stop lever 25 is pushed by the intermediate lever 28 at the same time, the second stop lever 25 rotates anticlockwise around the second rotating shaft 32, the first stop lever 23 and the second stop lever 25 move to the inside of the intermediate box 24, and the box passes through the intermediate box 24 under the driving of the conveyor belts 4 to complete safety inspection work.
The working principle of the invention is as follows: when the device is used, a box body needing security inspection is placed at the top of the workbench 10, two structural ends of each cross rod 16 are respectively provided with a thread, the nut sleeves 15 are arranged at the thread positions on the cross rods 16 and are in threaded connection with the cross rods 16, the threaded connection directions of the two nut sleeves 15 on the same cross rod 16 are opposite, the cross rods 16 are rotated, and the two nut sleeves 15 move in the same direction or in the opposite direction due to the opposite threaded connection directions of the two nut sleeves 15 on the same cross rod 16, so that the distance between the two conveying frames 5 is changed, the distance between the two conveying frames 5 is adjusted, the box body is clamped between the two conveying belts 4, the box body fixing work is realized, the box body detection work with different sizes is met, the application range of the device is improved, and the safety inspection of the box body is facilitated;
the rocker 12 is rotated to enable the screw 21 to rotate, when the screw 21 rotates, the screw 21 is in threaded connection with the nut sleeve 15 inside the slider, the slider moves downwards, the transverse shaft 20 moves downwards, the limiting plate 11 is close to the top surface of the box body, the driving wheel 3 is driven to rotate through the output end of the motor 17, the conveying belt 4 between the driving wheel 3 and the conveying wheel rotates, the conveying box body moves, the height of the detecting instrument 7 can be adjusted, the distance between the detecting instrument 7 and the box body is shortened, and detection is more accurate;
the box body is clamped by the conveyor belts 4 on the two conveyor frames 5 and conveyed forwards, when the box body moves to the position of the first stop lever 23, the pulley 27 at the top end of the first stop lever 23 stops the column box body to move, so that the detector 7 fully scans and confirms objects in the box body, after the scanning is finished, the piston rod 30 in the box body is controlled by the hydraulic cylinder 31 to move towards the outer side of the cylinder body, the spring 29 is pushed to enable the first stop lever 23 to rotate clockwise around the first rotating shaft 26, the middle lever 28 pushes the second stop lever 25 to enable the second stop lever 25 to rotate anticlockwise around the second rotating shaft 32, the first stop lever 23 and the second stop lever 25 move to the inner part of the middle box 24, the box body passes through the middle box 24 under the driving of the conveyor belts 4, when encountering the box body with dangerous objects, the box body can not pass through the middle box 24, the inspection by workers, the safety inspection work is finished, the arrangement of the spring, the box can collide with pulley 27 on the first pin 23 under the drive of conveyer belt 4, avoids damaging pneumatic cylinder 31, and the box can take place the phenomenon of skidding between 4 through the back that blocks of first pin 23 and conveyer belt for the box stops to remove and carries out the safety inspection, and when first pin 23 damaged, second pin 25 can play the standby effect, makes the device continue to operate.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. A rapid security inspection instrument based on terahertz comprises a workbench (10) and a transmission frame (5), and is characterized in that a plurality of rolling shafts (6) are arranged between the workbench (10), two ends of each rolling shaft (6) are respectively rotatably connected with the side walls of two sides of the workbench (10), lifting columns (8) are respectively and fixedly connected with the middle positions of the side walls of two sides of the workbench (10), the two lifting columns (8) are respectively vertical to the workbench (10), sliding chutes (22) are respectively formed in the side walls of one opposite side of the two lifting columns (8), a transverse shaft (20) is arranged between the two lifting columns (8), sliding blocks are respectively and fixedly arranged at two ends of each transverse shaft (20), the two sliding blocks respectively penetrate through the two sliding chutes (22) to be arranged inside the two lifting columns (8), a limiting rod (33) is arranged inside one lifting column (8), and a limiting sleeve hole (18) is formed in the sliding block inside the lifting column (8), a threaded sleeve hole (19) is formed in the sliding block on one side of the limiting sleeve hole (18), a limiting rod (33) penetrates through the limiting sleeve hole (18), a screw rod (21) is arranged on one side of the limiting rod (33), the limiting rod (33) is parallel to the screw rod (21), the screw rod (21) penetrates through the threaded sleeve hole (19) and is in threaded connection with the threaded sleeve hole (19), the top end of the screw rod (21) penetrates through the top surface of the lifting column (8) and extends out of the lifting column (8), and a rocker (12) is fixedly arranged on the end surface of the screw rod (21) extending out of the lifting column (8);
a counter (13) is arranged on the side wall of one side of the cross shaft (20), a limiting plate (11) is arranged on the side wall of the other side of the cross shaft (20), a detecting instrument (7) is arranged on one side of the limiting plate (11), conveying frames (5) are respectively arranged on two sides of the top surface of the workbench (10), a conveying wheel is respectively arranged at one end of each conveying frame (5), a driving wheel (3) is arranged at the other end of each conveying frame (5), a conveying belt (4) is arranged between the driving wheel (3) and the conveying wheel, a motor (17) is arranged at the bottom of the driving wheel (3), the output end of the motor (17) is in transmission connection with the driving wheel (3), cross rods (16) are respectively arranged at two inner end positions of the interior of the workbench (10), two ends of each cross rod (16) are respectively arranged on the inner walls of two sides of, the structure of each cross rod (16) is provided with a thread at two ends respectively, two ends of each cross rod (16) are provided with nut sleeves (15) respectively, the top of each nut sleeve (15) is welded with a movable column (14) respectively, the top end of each movable column (14) is connected with the bottom surface of a conveying frame (5) respectively, an intermediate box (24) is arranged inside a workbench (10) between two lifting columns (8), two ends of the bottom of the intermediate box (24) are provided with cross beams respectively, two ends of each cross beam are fixedly connected with two ends of the bottom of the workbench (10) respectively, one end inside the intermediate box (24) is provided with a first rotating shaft (26), the first rotating shaft (26) is rotatably connected with a first stop lever (23), one side of the first rotating shaft (26) is provided with a second rotating shaft (32), the second rotating shaft (32) is rotatably connected with a second stop lever (25), be provided with intermediate lever (28) between first pin (23) and second pin (25), the one end of intermediate lever (28) is articulated with the bottom of second pin (25), and the other end of intermediate lever (28) is articulated with the lateral wall of first pin (23), and the inside of middle box (24) is provided with pneumatic cylinder (31), and the inside of pneumatic cylinder (31) is provided with piston rod (30), is provided with spring (29) between the one end of piston rod (30) and the bottom of first pin (23).
2. The terahertz-based rapid security inspection instrument as claimed in claim 1, wherein the bottom end of the screw (21) is arranged on the inner bottom surface of the lifting column (8), a bearing is arranged at the joint of the screw (21) and the lifting column (8), and a bearing is also arranged at the joint of the screw (21) and the top surface of the lifting column (8).
3. The terahertz-based rapid security inspection instrument as claimed in claim 1, wherein the interior of each lifting column (8) is a hollow structure, and the contact surfaces between the inner wall of each lifting column (8) and the sliding block are smooth surfaces.
4. The terahertz-based rapid security inspection instrument as claimed in claim 1, wherein the top ends of the first blocking rod (23) and the second blocking rod (25) are respectively provided with a pulley (27), and the central axes of the two pulleys (27) are rotatably connected with the top ends of the two blocking rods.
5. The rapid security check instrument based on terahertz is characterized in that two ends of each cross rod (16) are respectively provided with a thread, the nut sleeves (15) are arranged at the thread positions on the cross rods (16) and are in threaded connection with the cross rods (16), and the threaded connection directions of the two nut sleeves (15) on the same cross rod (16) are opposite.
6. The terahertz-based rapid security inspection instrument as claimed in claim 1, wherein one end of the spring (29) is fixedly connected with the bottom end of the first stop lever (23), and the other end of the spring (29) is fixedly connected with one end of the piston rod (30).
7. The terahertz-based rapid security inspection instrument as claimed in claim 1, wherein the second stop lever (25) and the first stop lever (23) are at the same height position.
8. The terahertz-based rapid security inspection instrument as claimed in claim 1, wherein support columns (2) are respectively arranged at four corners of the bottom of the workbench (10), and rollers (1) are mounted at the bottom of each support column (2).
9. The terahertz-based rapid security inspection instrument as claimed in any one of claims 1 to 8, wherein the method for using the rapid security inspection instrument specifically comprises the following steps:
the method comprises the following steps: the box body needing to be subjected to security inspection is placed at the top of the workbench (10), two ends of each cross rod (16) are respectively provided with a thread, the nut sleeves (15) are arranged at the thread positions on the cross rods (16) and are in threaded connection with the cross rods (16), the threaded connection directions of the two nut sleeves (15) on the same cross rod (16) are opposite, the cross rods (16) are rotated, and the two nut sleeves (15) move in the same direction or in the opposite direction due to the fact that the threaded connection directions of the two nut sleeves (15) on the same cross rod (16) are opposite, so that the distance between the two conveying frames (5) is changed, and the distance adjustment between the two conveying frames (5) is realized;
step two: the rocker (12) is rotated to enable the screw rod (21) to rotate, when the screw rod (21) rotates, the screw rod (21) is in threaded connection with the nut sleeve (15) inside the sliding block, so that the sliding block moves downwards, the transverse shaft (20) moves downwards, the limiting plate (11) is close to the top surface of the box body, the output end of the motor (17) drives the driving wheel (3) to rotate, the conveying belt (4) between the driving wheel (3) and the conveying wheel rotates, and the conveying box body moves;
step three: the box body is clamped by the conveyor belts (4) on the two conveying frames (5) and conveyed forwards, when the box body moves to the position of the first stop lever (23), the pulley (27) at the top end of the first stop lever (23) stops the column box body to move, the detector (7) can fully scan and confirm the objects in the box body, the piston rod (30) in the detector is controlled to move towards the outer side of the box body by the hydraulic cylinder (31) after the scanning is finished, the first stop lever (23) rotates clockwise around the first rotating shaft (26) by pushing a spring (29), meanwhile, the second stop lever (25) is pushed through the middle lever (28), so that the second stop lever (25) rotates anticlockwise around the second rotating shaft (32), the first stop lever (23) and the second stop lever (25) move to the inside of the middle box (24), and the box body is driven by the conveyor belt (4) to pass through the middle box (24), so that the safety inspection work is completed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010772157.1A CN111856607B (en) | 2020-08-04 | 2020-08-04 | Terahertz-based rapid security check instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010772157.1A CN111856607B (en) | 2020-08-04 | 2020-08-04 | Terahertz-based rapid security check instrument |
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| CN111856607B CN111856607B (en) | 2021-06-01 |
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