Container explosive non-opening box intelligent inspection device based on ion mobility spectrum

Abstract

The application discloses a container explosive non-opening box intelligent checking device based on ion mobility spectrometry, which comprises a connecting outer frame, a hydraulic cylinder is internally installed in the connecting outer frame, a hydraulic pump is connected to one end of the hydraulic cylinder, and a first piston is movably connected in the hydraulic cylinder. The ion mobility spectrometer and a separately designed collecting device are integrated into one equipment, a user carries the equipment by means of shoulder carrying, and a handle is equipped to facilitate holding. The air suction pipe is placed at the ventilation position of the container, the threaded rod and the first piston are driven to move transversely by hydraulic oil, the sample is pushed to the ion mobility spectrometer for analysis and detection, before the next sample test, the threaded rod is driven by the hydraulic oil to drive the polishing blade to rotate in the air suction pipe, the internal powder is scraped, the transverse thrust generated by the piston ring can extrude the gas in the air suction pipe, and thus the whole cleaning process is completed, the residues after each detection are greatly reduced, and the accuracy of the next extraction detection is avoided.

Description

Technical Field

[0001] This invention relates to the field of container explosives inspection, and in particular to an intelligent non-opening inspection device for container explosives based on ion mobility spectrometry. Background Technology

[0002] Containers are one of the main modes of shipping. Customs usually needs to inspect the goods inside the containers to check whether they are consistent with the declared goods. To ensure the efficiency of the inspection, X-ray inspection is currently used, which is one of the commonly used inspection methods by customs and maritime authorities.

[0003] When suspicious items are detected inside a container by X-ray, the inspection process often requires opening the container, which is not only dangerous but also involves complicated procedures, resulting in low detection efficiency. Ion mobility spectrometry (IMA) is a commonly used method for detecting explosives. This technology achieves qualitative analysis of explosives by vaporizing and ionizing the sample and identifying the migration velocity of each ion under a controlled electric field. However, this method currently requires users to collect samples using cotton swabs, which are then applied to test strips before being sent to the instrument for detection. This method is slow and cannot quickly detect containerized cargo. Therefore, a more efficient device is needed to assist customs officers in conducting non-open-container inspections of containers.

[0004] To address these issues, we propose an intelligent non-opening inspection device for container explosives based on ion mobility spectrometry. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent inspection device for non-opening container explosives based on ion mobility spectrometry, in order to solve the problem that the current ion mobility spectrometry detection method for non-opening container detection is relatively complex and cumbersome, resulting in low detection efficiency. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An intelligent non-opening inspection device for container explosives based on ion mobility spectrometry includes a connecting frame, a hydraulic cylinder installed inside the connecting frame, a hydraulic pump connected to one end of the hydraulic cylinder, a first piston movably connected inside the hydraulic cylinder, a threaded rod fixedly connected to one end of the first piston, a piston ring sleeved on the outer wall of the threaded rod, a grinding blade installed at one end of the threaded rod, an air suction pipe fixedly connected to one side of the outer wall of the connecting frame, a first winding roller and a second winding roller respectively bearing connected inside the connecting frame, test paper wound on the outer walls of both the first winding roller and the second winding roller, an air outlet pipe installed at the bottom of the inner wall of the connecting frame, an air suction pump connected to the top of the air outlet pipe, a sealing cavity connected to the other end of the air suction pump, the sealing cavity connected to one end of the air suction pipe, an internal threaded ring threadedly connected to the outer wall of the threaded rod, and an ion mobility spectrometer installed inside the connecting frame.

[0007] In a further embodiment, the piston ring and the grinding blade are in contact with each other on the inner wall of the intake pipe, and a rubber strip is provided at the edge of the contact point between the grinding blade and the intake pipe.

[0008] In a further embodiment, a shoulder groove is provided at the bottom of the connecting frame, and a handle is provided at the front end of the connecting frame.

[0009] In a further embodiment, a drive motor is connected to the shaft end of the second take-up roller, and the second take-up roller and the first take-up roller are both wound with the same set of test paper, which passes through the ion mobility spectrometer.

[0010] In a further embodiment, slits are provided on both sides of the sealed cavity to allow for movable connection with the test paper.

[0011] In a further embodiment, a damping bearing is provided between the threaded rod and the grinding blade.

[0012] In a further embodiment, one end of the suction tube is threaded with a fine-diameter connector.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention integrates an ion mobility spectrometer and a separately designed acquisition device into a single unit. The user carries the device by shoulder-carrying, and it is equipped with a handle for easy handling. A section of the suction tube is placed in a ventilated area of ​​a container. Hydraulic oil drives a threaded rod and a first piston to move laterally, pushing the sample into the ion mobility spectrometer for analysis. Before the next sample is tested, the hydraulic oil drives the threaded rod to rotate a grinding blade inside the suction tube, scraping away internal powder. The lateral thrust generated by the piston ring also expels the gas inside the suction tube, completing the cleaning process. This significantly reduces residue after each test, preventing it from affecting the accuracy of subsequent extractions and allowing the entire device to be reused. This solves the problem of inaccurate subsequent detections caused by molecules from previous suction devices, improving overall detection efficiency and eliminating the need for one-time replacements. Attached Figure Description

[0014] Figure 1 This is a side view of the external structure of a container-based intelligent inspection device for explosives without opening the container, based on ion mobility spectrometry.

[0015] Figure 2 This is a side view of the internal structure of a container-based intelligent inspection device for explosives without opening the container, based on ion mobility spectrometry.

[0016] Figure 3 For the non-opening intelligent inspection device for explosives in containers based on ion mobility spectrometry Figure 2 A magnified structural diagram of part A in the middle.

[0017] In the diagram: 1. Connecting frame; 2. Hydraulic cylinder; 3. Hydraulic pump; 4. Shoulder groove; 5. First piston; 6. Threaded rod; 7. Piston ring; 8. Grinding blade; 9. Suction pipe; 901. Fine interface end; 10. First take-up roller; 11. Second take-up roller; 12. Sealing cavity; 13. Exhaust pipe; 14. Suction pump; 15. Internal threaded ring; 16. Ion mobility spectrometer. Detailed Implementation

[0018] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-3In this invention, a container explosives non-opening intelligent inspection device based on ion mobility spectrometry includes a connecting frame 1. A hydraulic cylinder 2 is installed inside the connecting frame 1. One end of the hydraulic cylinder 2 is connected to a hydraulic pump 3. A first piston 5 is movably connected inside the hydraulic cylinder 2. A threaded rod 6 is fixedly connected to one end of the first piston 5. A piston ring 7 is sleeved on the outer wall of the threaded rod 6. A grinding blade 8 is installed at one end of the threaded rod 6. An air suction pipe 9 is fixedly connected to one side of the outer wall of the connecting frame 1. Inside frame 1, a first take-up roller 10 and a second take-up roller 11 are respectively connected by bearings. Test paper is wound on the outer walls of both the first take-up roller 10 and the second take-up roller 11. An air outlet pipe 13 is installed at the bottom of the inner wall of the connecting outer frame 1. An air suction pump 14 is connected to the top of the air outlet pipe 13. The other end of the air suction pump 14 is connected to a sealing cavity 12. The sealing cavity 12 is connected to one end of the air suction pipe 9. An internal threaded ring 15 is threadedly connected to the outer wall of the threaded rod 6. An ion mobility spectrometer 16 is installed inside the connecting outer frame 1.

[0022] Example 1: Please refer to Figure 1-3 In this embodiment of the invention, a container explosive non-opening intelligent inspection device based on ion mobility spectrum is provided. The piston ring 7 and the grinding blade 8 are in contact with the inner wall of the suction pipe 9. A rubber strip is provided on the edge of the contact between the grinding blade 8 and the suction pipe 9. There are multiple flat blades around the grinding blade 8. The tips of the blades are glued with rubber. This can reduce wear caused by friction. At the same time, the grinding blade 8 can also generate lateral air volume when rotating, which can increase the thrust of the particles moving outward.

[0023] A damping bearing is provided between the threaded rod 6 and the grinding blade 8. The grinding blade 8 is connected to the threaded rod 6 by a damping bearing. When the damping bearing rotates to one side, it will generate greater damping, causing the threaded rod 6 and the grinding blade 8 to rotate together. When it rotates to the other side, it will achieve the same rotation effect as a normal bearing.

[0024] One end of the suction pipe 9 is threadedly connected to a fine interface end 901. The fine interface end 901 connected to the suction pipe 9 allows a finer pipe to be extended to the ventilation area of ​​the container, inserted and better sucking up the gas inside the container.

[0025] Example 2: Please refer to Figure 1-3 The difference from Embodiment 1 is that: the bottom of the connecting outer frame 1 is provided with a shoulder groove 4, and the front end of the connecting outer frame 1 is provided with a handle. The shoulder groove 4 makes it convenient for users to carry the entire device on their shoulders, and the front end is equipped with a handle, which can improve the grip of the entire device and make it convenient for users to operate directly.

[0026] Example 3: Please refer to Figure 1-3The difference from Embodiment 1 is that: the second winding roller 11 is connected to a drive motor at its shaft end, and the second winding roller 11 and the first winding roller 10 are both wound with the same set of test paper. The test paper passes through the ion mobility spectrometer 16. The second winding roller 11 and the first winding roller 10 are wound with the same test paper. The second winding roller 11 is driven by the motor to wind up the test paper, allowing the test paper to pass through the ion mobility spectrometer 16 for detection.

[0027] The sealing cavity 12 has slits on both sides that are movably connected to the test paper. The sealing cavity 12 is located directly below the suction tube 9 and is interconnected with the suction tube 9. The sealing cavity 12 is designed to be flatter overall, reducing the length of the pipe and reducing the residue of powder in the pipe.

[0028] The working principle of this invention is: First, position the shoulder groove 4 on your shoulder and hold one end of the handle. Turn on the hydraulic pump 3 to inject hydraulic oil into the hydraulic cylinder 2. The hydraulic oil in the hydraulic cylinder 2 pushes the first piston 5 forward, which in turn pushes the threaded rod 6 forward. The engagement between the threaded rod 6 and the internal threaded ring 15 allows the threaded rod 6 to rotate as it moves forward, thereby driving the piston ring 7 and the grinding blade 8 to rotate together inside the intake pipe 9. During rotation, the edge of the grinding blade 8 will rub against the inner wall of the intake pipe 9. A damping bearing is used between the threaded rod 6 and the grinding blade 8. When the threaded rod 6 moves forward and rotates, the rotation direction will generate significant damping, causing the grinding blade 8 to rotate along with it. The forward-moving piston ring 7 can expel all the particles inside the intake pipe 9. The scraping force generated during grinding can better remove residual particles from the inner wall of the intake pipe 9, and the thrust of the piston ring 7 can push it forward to reduce the residual molecular weight. When it is necessary to start inspecting the container and collecting gas, the hydraulic pump 3 can be used to reverse the flow of hydraulic oil from the hydraulic cylinder 2. The hydraulic oil in the part causes the first piston 5 to move backward and pull the threaded rod 6 in the opposite direction. Simultaneously, the threaded rod 6, due to the action of the internal threaded ring 15, will rotate in the opposite direction. Because a one-way damping bearing is used between the threaded rod 6 and the grinding blade 8, when the threaded rod 6 rotates in the opposite direction, the edge of the grinding blade 8 and the inner wall of the suction pipe 9 are relatively fixed due to static friction, preventing the grinding blade 8 from rotating. The threaded rod 6, however, can rotate independently. The principle is similar to that of a damping bearing: it has greater damping when rotating to one side and no damping when rotating to the other. Thus, during suction, the grinding... Leaf 8 cannot draw in gas by rotating and moving piston ring 7. When piston ring 7 moves to the bottom of suction pipe 9, suction pump 14 can be activated to draw in gas downwards. Part of the gas drawn in falls into the sealed cavity 12 and lands on the test paper that has passed through. Then, the drive motor drives the second winding roller 11 to rotate and wind up the test paper. The test paper in the sprayed area moves into the preset interlayer of ion mobility spectrometer 16 for detection. The test paper that has been detected will be wound up by the second winding roller 11, and a new test paper will also enter the sealed cavity 12. Although residues may appear on the surface of the grinding blade 8, the grinding blade 8 will also generate high temperature when it rubs against the intake pipe 9. The increased temperature will also cause the original powdery chemicals in the intake to be destroyed and transferred to the piston ring 7, so the original powder cannot be detected.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A container-based intelligent inspection device for explosives without opening the container, based on ion mobility spectrometry, characterized in that: The system includes a connecting frame (1), inside which a hydraulic cylinder (2) is installed. One end of the hydraulic cylinder (2) is connected to a hydraulic pump (3). Inside the hydraulic cylinder (2), a first piston (5) is movably connected. One end of the first piston (5) is fixedly connected to a threaded rod (6). A piston ring (7) is fitted onto the outer wall of the threaded rod (6). One end of the threaded rod (6) is fitted with a grinding blade (8). An air suction pipe (9) is fixedly connected to one side of the outer wall of the connecting frame (1). Inside the connecting frame (1), a first take-up roller is connected by bearings. (10) and the second take-up roller (11), the outer walls of the first take-up roller (10) and the second take-up roller (11) are both wrapped with test paper, the bottom of the inner wall of the connecting frame (1) is equipped with an air outlet pipe (13), the top of the air outlet pipe (13) is connected to an air suction pump (14), the other end of the air suction pump (14) is connected to a sealing cavity (12), the sealing cavity (12) is connected to one end of the air suction pipe (9), the outer wall of the threaded rod (6) is threaded with an internal threaded ring (15), and an ion mobility spectrometer (16) is installed inside the connecting frame (1). The piston ring (7) and the grinding blade (8) are in contact with the inner wall of the suction pipe (9), and a rubber strip is provided at the edge of the contact point between the grinding blade (8) and the suction pipe (9); The sealed cavity (12) has gaps on both sides that are movably connected to the test paper; The second take-up roller (11) is connected to a drive motor at its shaft end. The second take-up roller (11) and the first take-up roller (10) are both wound with the same set of test paper, which passes through the ion mobility spectrometer (16). A one-way damping bearing is provided between the threaded rod (6) and the grinding blade (8).

2. The intelligent non-opening inspection device for explosives in containers based on ion mobility spectrometry according to claim 1, characterized in that: The bottom of the connecting frame (1) is provided with a shoulder groove (4), and the front end of the connecting frame (1) is provided with a handle.

3. The intelligent non-opening inspection device for container explosives based on ion mobility spectrometry according to claim 1, characterized in that: One end of the suction pipe (9) is threadedly connected to a fine-diameter end (901).

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