Dangerous goods detector integrating explosive drug detection and dangerous liquid detectionTechnical Field
The invention belongs to the technical field of safety inspection, and particularly relates to a dangerous article detector integrating explosive drug detection and dangerous liquid detection.
Background
Explosives and drugs seriously jeopardize the safety and health of human life, and effective detection of the explosives and drugs is one of important methods for maintaining public safety of society. The explosive drug detector based on the ion mobility spectrometry (IMS technology is widely applied to security inspection fields of airports, customs, subways, government institutions and the like, and the bottled dangerous liquid detection technology based on the fusion of broadband microwave reflection and thermal conductivity method can judge the property of liquid in a bottle under the condition that a bottle cap is not opened, and the existing dangerous drug detector is divided into a desk type dangerous drug detector and a portable dangerous drug detector.
For example, the patent with publication number CN218885788U provides a dangerous goods detector integrating explosive drug detection and dangerous liquid detection, which comprises a shell, a main control module, a thermal conductivity detection module, a microwave detection module, a trace explosive drug detection module and a display module. The main control module is arranged in the shell, and the thermal conductivity detection module, the microwave detection module, the trace explosive drug detection module and the display module are all connected with the main control module; the thermal conductivity detection module is used for detecting the bottled liquid of the metal; the microwave detection module is used for detecting nonmetallic bottled liquid; the trace explosive and drug detection module is used for detecting explosives and drugs; the display module is used for displaying detection results of the thermal conductivity detection module, the microwave detection module and the trace explosive drug detection module. The desk type dangerous liquid detector integrating the fluorescence quenching principle for detecting the explosive and the drug can detect the explosive/drug, nonmetal bottle liquid and metal bottle liquid simultaneously, so that the multifunctional explosive/drug detector is multipurpose, more convenient to use, small in occupied space and convenient to maintain.
The portable detector among the prior art is provided with solitary sample inlet, through inhaling the sample that will detect the sample inlet, thereby can detect different dangerous goods through different detection module, but because explosive, drug and dangerous liquid's state is different, and current sample inlet fixed position can not carry out the switching of sample inlet to the thing that awaits measuring of different states, causes the sample inlet to pollute easily after the repetitious usage, leads to the detection effect relatively poor, the present dangerous goods detector that provides an integrated explosive drug and dangerous liquid detection solves above problem.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides the dangerous goods detector integrating explosive drug detection and dangerous liquid detection, and solves the problem of poor detection effect caused by inconvenient switching of the sample inlet.
In order to achieve the above purpose, the present invention provides the following technical solutions: the dangerous article detector integrating explosive drug detection and dangerous liquid detection comprises a sample inlet component, a drift tube capable of switching positive and negative electric fields in real time, an amplifying circuit component, a high-voltage switching circuit component, a control circuit component and an air path component;
the sample inlet assembly comprises a detector body, one side fixedly connected with fixed shell of detector body, the inside one side fixedly connected with of fixed shell has first absorber, the inside opposite side fixedly connected with second absorber of fixed shell, the inside equal swing joint of first absorber and second absorber has the sealer, the inside fixedly connected with stay cord of first absorber, the opposite side fixedly connected with swivel of stay cord, the top butt of stay cord has the gag lever post, the bottom bearing of gag lever post is connected with the fixed plate, the inboard annular equal angle fixedly connected with spacing of fixed shell, the outside activity joint of fixed shell has movable fixture block, the equal fixedly connected with connecting pipe in the middle part of first absorber and second absorber, one side fixedly connected with spacing pipe of detector body is kept away from to first absorber.
Preferably, the first absorber comprises a first fixed pipe, a first suction pipe is movably clamped in the first fixed pipe, a spring is fixedly connected to the middle of the inside of the first fixed pipe, the bottom of the spring is fixedly connected with the first suction pipe, sealing rings are arranged at the middle and bottom of the first suction pipe, the outer side of the first fixed pipe is fixedly connected with a fixed shell, and the top side of the first fixed pipe is fixedly connected with a limiting pipe.
Preferably, the second absorber comprises a second fixed pipe, a second suction pipe is movably clamped in the second fixed pipe, sealing rings are arranged at the middle part and the bottom of the second suction pipe, the outer side of the second fixed pipe is fixedly connected with the fixed shell, the top side of the second fixed pipe is fixedly connected with the limiting pipe, and the outer side of the top of the second suction pipe is movably sleeved with the limiting pipe.
Preferably, the sealer comprises a first air pipe and a second air pipe, air holes which are distributed in an annular mode are formed in the tops of the first air pipe and the second air pipe, the outer ends of the air holes are fixedly communicated with positioning pipes, movable columns are movably clamped in the positioning pipes, limiting plates are fixedly connected to the tops of the movable columns, and supporting rods are movably clamped at the bottoms of the left side and the right side of the limiting plates.
Preferably, one end of the pull rope far away from the swivel is fixedly connected with the sealing ring in the middle of the first suction pipe, the outer side of the swivel is movably clamped with the fixing shell, the limiting frame comprises fixing blocks on the upper side and the lower side and rolling shafts in the middle of the fixing blocks, one side of each fixing block is fixedly connected with the fixing shell, the swivel is located in the middle of the limiting frame, and the inner ring of the fixing plate is fixedly connected with the first fixing pipe.
Preferably, the outer end of the fixed shell is provided with an arc-shaped limit groove, the outer end of the swivel is provided with a shifting block, the inner side of the limit groove is movably clamped with the shifting block, and the movable clamping block is positioned at the top of one side of the limit groove.
Preferably, the spacing piece includes the valve, the fixed intercommunication of one end of valve has the air inlet tank, the opposite side fixed intercommunication of air inlet tank has the pressure chamber, the top fixedly connected with movable membrane in pressure chamber, the top of movable membrane is equipped with the vibration chamber, the topside equidistance of movable membrane is equipped with the lug, the other end and the spacing piece upper end intercommunication of pressure chamber.
Preferably, the top of second gas-supply pipe is fixed with first fixed pipe intercommunication, the top of first gas-supply pipe is fixed with the fixed pipe of second and is linked together, first gas-supply pipe and second gas-supply pipe all are located the connecting pipe under, the outside of first gas-supply pipe bottom and the fixed pipe of first fixed intercommunication, the outside of second gas-supply pipe bottom and the fixed pipe of second fixed intercommunication, the outside of first gas-supply pipe and second gas-supply pipe top all is fixed with the locating tube and is connected, the left and right sides and the bracing piece fixed connection at locating tube top, the spacing piece is made by rubber material, the outer end and the inner ring butt of first suction tube of spacing piece, the top of first gas-supply pipe and second gas-supply pipe is located the top of second suction tube and spring bottom sealing ring respectively.
Preferably, the connecting pipes are respectively positioned below the middle sealing rings of the first suction pipe and the second suction pipe, and the bottoms of the first absorber and the second absorber are respectively provided with a detection port communicated with the detector body.
Preferably, the top of the first fixed pipe is connected with the stay cord through a linear bearing, and the outer diameter value of the first suction pipe is equal to the inner diameter value of the limiting pipe.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the device is convenient to detect with good effect by matching the structures of the first absorber, the second absorber, the sealer, the pull rope, the swivel and the limiting rod, the swivel is rotated to the other side of the limiting groove in a sliding manner, the movable clamping block is rotated downwards to abut against the shifting block of the swivel, the swivel pulls the pull rope, the swivel drives the pull rope to rotate, the pull rope can wind the outer sides of the limiting rod and the limiting frame, the pull rope pulls the first suction pipe to move upwards, the first suction pipe can enable negative pressure to be generated between the second fixed pipe and the second suction pipe through the connecting pipe, gas enters the inner parts of the upper ends of the first fixed pipe and the first suction pipe through the connecting pipe, so that the first suction pipe moves upwards to extend out of the outer side of the fixed shell, and the second suction pipe moves downwards to shrink into the inner part of the fixed shell, so that the device is convenient for switching of the sample inlet, and the device is convenient to detect with good effect;
according to the invention, the device is convenient to seal by matching the structures of the first absorber, the first gas pipe, the gas hole, the positioning pipe, the movable column, the limiting piece and the like, the sealing ring at the lower end of the first suction pipe can extrude gas through the second gas pipe, the gas can be discharged into the positioning pipe at the right end through the gas hole, the movable column at the right end moves upwards, the movable column pushes the middle part of the limiting piece to move upwards, the limiting piece can be unfolded to be abutted with the inner side of the second suction pipe for sealing, meanwhile, the second suction pipe moves downwards, the gas can be sucked through the first gas pipe, the movable column at the left end drives the limiting piece to move downwards, the outer end of the limiting piece at the left end is not abutted with the first suction pipe, the sealing of the first suction pipe is released, and the device is convenient to seal;
according to the invention, the detection precision of the device is high through the structural cooperation of the first absorber, the first gas transmission pipe, the air hole, the positioning pipe, the movable column, the limiting piece and the like, when the second suction pipe moves downwards, the middle part of the limiting piece is jacked upwards by the movable column, the outer side of the limiting piece is abutted against the inner side of the second suction pipe, the second suction pipe continues to move downwards, the inner side of the second suction pipe can be scraped through the limiting piece, residual substances on the inner side of the second suction pipe can be scraped, gas can squeeze the valve, the gas enters the pressure cavity through the air inlet groove, the gas flow velocity in the pressure cavity is increased, so that the movable film is recessed towards the pressure cavity, when the second suction pipe moves to the lowest, the gas stops flowing, the movable film can be quickly reset to collide with the vibration cavity, the limiting piece can vibrate down, the scraped substances can be prevented from affecting the detection result of the next time, and the detection precision of the device is high.
Drawings
FIG. 1 is a schematic elevational view of the structure of the present invention;
FIG. 2 is a schematic front cross-sectional view of the invention at a stationary housing;
FIG. 3 is an enlarged schematic view of the invention at A of FIG. 2;
FIG. 4 is an enlarged schematic view of the invention at B of FIG. 2;
FIG. 5 is an enlarged schematic view of the invention at C of FIG. 2;
FIG. 6 is a schematic view showing the disassembly of the internal structure of the fixing case of the present invention;
FIG. 7 is an enlarged schematic view of the invention at A of FIG. 6;
FIG. 8 is a schematic view of the relationship between the first absorber, pull rope, swivel, stop lever, fixed plate and stop frame of the present invention;
FIG. 9 is a schematic view showing the positional relationship of the internal structure of the fixing case of the present invention;
FIG. 10 is a schematic side cross-sectional view of a spacing block of the present invention;
FIG. 11 is an enlarged schematic view of the invention at A of FIG. 10;
fig. 12 is an enlarged schematic view of fig. 10 at B in accordance with the present invention.
In the figure: 1. a detector body; 2. a fixed case; 3. a first absorber; 301. a first fixed tube; 302. a first suction tube; 303. a spring; 4. a second absorber; 401. a second fixed tube; 402. a second suction tube; 5. a sealer; 501. a first gas pipe; 502. air holes; 503. a positioning tube; 504. a movable column; 505. a limiting piece; 5051. a valve; 5052. an air inlet groove; 5053. a pressure chamber; 5054. a movable membrane; 5055. a vibration chamber; 506. a support rod; 507. a second gas pipe; 6. a pull rope; 7. a swivel; 8. a limit rod; 9. a fixing plate; 10. a limiting frame; 11. a movable clamping block; 12. a connecting pipe; 13. and a limiting tube.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 12, the invention provides a dangerous goods detector integrating explosive drug detection and dangerous liquid detection, which comprises a sample inlet component, a drift tube capable of switching positive and negative electric fields in real time, an amplifying circuit component, a high-voltage switching circuit component, a control circuit component and an air circuit component;
the sample inlet assembly comprises a detector body 1, one side of the detector body 1 is fixedly connected with a fixed shell 2, one side of the inside of the fixed shell 2 is fixedly communicated with a first absorber 3, the other side of the inside of the fixed shell 2 is fixedly communicated with a second absorber 4, the inside of the first absorber 3 and the inside of the second absorber 4 are both movably connected with a sealer 5, the inside of the first absorber 3 is fixedly connected with a pull rope 6, the other side of the pull rope 6 is fixedly connected with a swivel 7, the top of the pull rope 6 is abutted with a limiting rod 8, the bottom bearing of the limiting rod 8 is connected with a fixed plate 9, the inside of the fixed shell 2 is fixedly connected with a limiting frame 10 in an annular equal-angle manner, the outside of the fixed shell 2 is movably clamped with a movable clamping block 11, the middle parts of the first absorber 3 and the second absorber 4 are fixedly communicated with a connecting pipe 12, and one side of the first absorber 3, which is far away from the detector body 1, is fixedly communicated with a limiting pipe 13;
through with swivel 7 slip rotation to the spacing groove opposite side, carry out the butt with the shifting block of activity fixture block 11 downwardly sliding to swivel 7, swivel 7 pulling stay cord 6, swivel 7 drives stay cord 6 rotation, and stay cord 6 can wind in the outside of gag lever post 8 and spacing 10, through pulling first absorber 3, can change the inside pressure of first absorber 3 and second absorber 4 to make the device can accomplish the switching of first absorber 3 and second absorber 4, it is worth stating that first absorber 3 and second absorber 4 are used for explosive drug detection and dangerous liquid detection respectively.
As shown in fig. 2, 5 and 6, the first absorber 3 comprises a first fixed pipe 301, a first suction pipe 302 is movably clamped in the first fixed pipe 301, a spring 303 is fixedly connected to the middle part of the inside of the first fixed pipe 301, the bottom of the spring 303 is fixedly connected with the first suction pipe 302, sealing rings are respectively arranged at the middle part and the bottom of the first suction pipe 302, the outer side of the first fixed pipe 301 is fixedly connected with a fixed shell 2, the top side of the first fixed pipe 301 is fixedly connected with a limiting pipe 13, the top of the first fixed pipe 301 is connected with a pull rope 6 through a linear bearing, and the outer diameter value of the first suction pipe 302 is equal to the inner diameter value of the limiting pipe 13;
the first suction pipe 302 can be limited through the first fixed pipe 301, the spring 303 can be limited through the first fixed pipe 301 and the first suction pipe 302, two upper sealing environments and lower sealing environments can be formed between the first fixed pipe 301 and the first suction pipe 302 through the sealing rings, the first fixed pipe 301 can be limited and supported through the fixed shell 2, the first suction pipe 302 can be limited through the limiting pipe 13, and the inside of the fixed shell 2 can be sealed.
As shown in fig. 4 and 6, the second absorber 4 comprises a second fixed pipe 401, a second suction pipe 402 is movably clamped in the second fixed pipe 401, sealing rings are respectively arranged at the middle part and the bottom of the second suction pipe 402, the outer side of the second fixed pipe 401 is fixedly connected with the fixed shell 2, the top side of the second fixed pipe 401 is fixedly connected with the limiting pipe 13, and the outer side of the top of the second suction pipe 402 is movably sleeved with the limiting pipe 13;
the second suction pipe 402 can be limited through the second fixed pipe 401, two sealing environments can be formed between the second fixed pipe 401 and the second suction pipe 402 through the sealing ring, the second fixed pipe 401 can be limited and supported through the fixed shell 2, the second suction pipe 402 can be limited through the limiting pipe 13, and the inside of the fixed shell 2 can be sealed.
As shown in fig. 2, fig. 3, fig. 4, fig. 7, fig. 9, fig. 10, fig. 11 and fig. 12, the sealer 5 comprises a first air pipe 501 and a second air pipe 507, air holes 502 distributed in an annular shape are formed in the top parts of the first air pipe 501 and the second air pipe 507, a positioning pipe 503 is fixedly communicated with the outer end of the air holes 502, a movable column 504 is movably clamped inside the positioning pipe 503, a limit plate 505 is fixedly connected to the top part of the movable column 504, support rods 506 are movably clamped at the bottoms of the left side and the right side of the limit plate 505, the top part of the second air pipe 507 is fixedly communicated with the first fixed pipe 301, the top part of the first air pipe 501 is fixedly communicated with the second fixed pipe 401, the first air pipe 501 and the second air pipe 507 are all positioned under a connecting pipe 12, the outer side of the bottom part of the first air pipe 501 is fixedly communicated with the first fixed pipe 301, the outer side of the bottom part of the second air pipe 507 is fixedly communicated with the second fixed pipe 401, the outer sides of the top parts of the first air pipe 501 and the second air pipe 507 are fixedly connected with a limit plate 505, the left side of the right side of the positioning pipe 505 is fixedly connected with the second air pipe 505 by a sealing ring 302, and the upper side of the limit plate 303 is respectively abutted against the top part of the second air pipe 505;
the limiting plate 505 comprises a valve 5051, one end of the valve 5051 is fixedly communicated with an air inlet groove 5052, the other side of the air inlet groove 5052 is fixedly communicated with a pressure cavity 5053, the top of the pressure cavity 5053 is fixedly connected with a movable membrane 5054, a vibrating cavity 5055 is arranged above the movable membrane 5054, bumps are equidistantly arranged on the top side of the movable membrane 5054, and the other end of the pressure cavity 5053 is communicated with the upper end of the limiting plate 505;
through the upward movement of the first suction pipe 302, the sealing ring at the lower end of the first suction pipe 302 can extrude gas through the second gas pipe 507, the gas can be discharged into the positioning pipe 503 at the right end through the gas hole 502, the movable column 504 at the right end moves upward, the movable column 504 pushes the middle part of the limiting plate 505 to move upward, the limiting plate 505 can be unfolded to be abutted with the inner side of the second suction pipe 402 for sealing, meanwhile, the second suction pipe 402 moves downward, the gas can be sucked through the first gas pipe 501, the movable column 504 at the left end drives the limiting plate 505 to move downward, the outer end of the limiting plate 505 at the left end is not abutted with the first suction pipe 302, the first suction pipe 302 is unsealed, the device is convenient to seal, the second suction pipe 402 continues to move downward, the inner side of the second suction pipe 402 can be scraped through the limiting plate 505, residual substances on the inner side of the second suction pipe 402 can be scraped, the detection result of the next time can be prevented from being influenced by the residual substances, and the detection precision of the device is high;
the gas can squeeze the valve 5051, enter the pressure chamber 5053 through the inlet channel 5052, the internal gas flow rate of the pressure chamber 5053 increases, so that the movable membrane 5054 is recessed towards the pressure chamber 5053, when the second suction tube 402 moves to the lowest position, the gas stops flowing, the movable membrane 5054 can be quickly reset to strike the vibration chamber 5055, so that the limiting plate 505 vibrates, and the scraped material can be vibrated down by placing the second suction tube 402 upside down.
As shown in fig. 1 to 9, one end of a pull rope 6 far away from a swivel 7 is fixedly connected with a sealing ring in the middle of a first suction pipe 302, the outer side of the swivel 7 is movably clamped with a fixed shell 2, a limiting frame 10 comprises fixed blocks on the upper side and the lower side and rollers in the middle, one side of the fixed blocks is fixedly connected with the fixed shell 2, the swivel 7 is positioned in the middle of the limiting frame 10, an inner ring of a fixed plate 9 is fixedly connected with a first fixed pipe 301, an arc-shaped limiting groove is formed in the outer end of the fixed shell 2, a shifting block is arranged at the outer end of the swivel 7, the inner side of the limiting groove is movably clamped with the shifting block, a movable clamping block 11 is positioned at the top of one side of the limiting groove, a connecting pipe 12 is respectively positioned below the sealing rings in the middle of the first suction pipe 302 and the second suction pipe 402, and detection ports are formed in the bottoms of a first absorber 3 and a second absorber 4 and are communicated with a detector body 1;
through with swivel 7 slip rotation to the spacing groove opposite side, carry out the butt with the shifting block of activity fixture block 11 downwardly sliding to swivel 7, can carry out spacingly to swivel 7 through activity fixture block 11, prevent that the elasticity of spring 303 from pulling first suction tube 302 and resetting, swivel 7 pulling stay cord 6, swivel 7 drives stay cord 6 rotation, stay cord 6 can wind in the outside of gag lever post 8 and spacing 10, stay cord 6 pulling first suction tube 302 upwards moves, through setting up the detection mouth for the device can be through detecting that the device gets into the device inside to the material.
The working principle and the using flow of the invention are as follows:
firstly, an operator slides and rotates a swivel 7 to the other side of a limiting groove, a movable clamping block 11 slides downwards to abut against a shifting block of the swivel 7, the swivel 7 pulls a pull rope 6, the swivel 7 drives the pull rope 6 to rotate, the pull rope 6 can wind the outer sides of a limiting rod 8 and a limiting frame 10, the pull rope 6 pulls a first suction tube 302 to move upwards, the first suction tube 302 can enable negative pressure to be generated between a second fixed tube 401 and a second suction tube 402 through a connecting tube 12, gas enters the inner parts of the upper ends of the first fixed tube 301 and the first suction tube 302 through the connecting tube 12, the first suction tube 302 moves upwards to extend out of the fixed shell 2, and the second suction tube 402 moves downwards to retract into the inner part of the fixed shell 2;
through the upward movement of the first suction pipe 302, the sealing ring at the lower end of the first suction pipe 302 can extrude gas through the second gas pipe 507, the gas can be discharged into the positioning pipe 503 at the right end through the gas hole 502, the movable column 504 at the right end moves upward, the movable column 504 pushes the middle part of the limiting plate 505 to move upward, the limiting plate 505 can be unfolded to be sealed with the inner side of the second suction pipe 402 in an abutting mode, meanwhile, the second suction pipe 402 moves downward, the gas can be sucked through the first gas pipe 501, the movable column 504 at the left end drives the limiting plate 505 to move downward, the outer end of the limiting plate 505 at the left end is not abutted with the first suction pipe 302, the first suction pipe 302 is unsealed, the second suction pipe 402 continues to move downward, the inner side of the second suction pipe 402 can be scraped through the limiting plate 505, and residual substances on the inner side of the second suction pipe 402 can be scraped, so that the operation is completed.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although 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 alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.