CN200996943Y - Cargo inspecter - Google Patents

Abstract

A cargo inspection device comprising: first and second scanning mechanisms for scanning the cargo from different angles respectively and each comprising: a radiation source for emitting radiation; for calibrating the A collimator for the ray; a detector for receiving the ray collimated by the collimator; and an arm frame, on which the collimator and the detector of the first and second scanning mechanisms are integrated; And a conveying device, the conveying device is used to drag the inspected goods through the scanning area and can avoid blocking the rays from shooting to the detector. Compared with the prior art, the utility model has a reasonable design and an ingenious structure. One scan can simultaneously obtain scanning images of the same object in two different directions, which improves the identification ability of the equipment, enhances the reliability of detection, and improves the detection efficiency of the equipment. Efficiency: two sets of scanning booms are integrated into one set of boom equipment, which reduces the total cost of equipment and makes installation easier.

Description

A cargo inspection device

technical field

The utility model relates to a cargo inspection system, in particular to a large-scale aviation container/pallet cargo inspection system, which belongs to the technical field of radiation detection.

Background technique

The air container/pallet cargo inspection system is an urgently needed equipment for aviation safety inspection. At present, domestic and foreign aviation goods are mainly inspected by unpacking or X-ray machines, which have low inspection efficiency and poor inspection effect. With the wide application of large-scale container inspection systems in various customs ports, large-scale radiation inspection systems are also gradually applied to the security inspections of airport customs and airport container freight stations. The inventor discloses an invention named "Airline Container/Pallet Cargo Inspection System" (CN01124111.X). The detector for inspecting the goods ray uses a dragging device to drag the inspected goods through the scanning area, and at the same time obtains a perspective image of the objects contained in the box. The invention can realize rapid inspection of air container/pallet goods. Since only one side of the object can be seen from the image, sometimes suspicious images must be re-examined or checked out of the box, which reduces system reliability and inspection efficiency. The inventor has disclosed an invention titled "A Double Radiation Source Frame Structure for Container Inspection System" (CN1607385A), which discloses a frame structure that integrates two sets of scanning devices. The sources are arranged at an angle, and the collimators and detectors corresponding to the ray sources are integrated on a set of boom systems. When scanning, the two scanning devices work at the same time, and the ray source irradiates the inspected object from different directions at the same time, so that scanning images of the same object in two different directions can be obtained in one scanning process, which improves system reliability and scanning efficiency.

Contents of the invention

The utility model aims to improve on the basis of the patent "air container/pallet cargo inspection system" (CN01124111.X) and provide a double radiation source air container/pallet cargo inspection equipment, which can inspect the air container/pallet cargo once Scanning can obtain scanning images in different directions at the same time, improve the ability of air container/pallet cargo equipment to identify the inspected goods, and improve the reliability and efficiency of equipment inspection.

According to one aspect of the present invention, a cargo inspection device includes: first and second scanning mechanisms, the first and second scanning mechanisms are used to scan the cargo from different angles and each includes: emitting rays A ray source; a collimator for calibrating the ray; a detector for receiving the ray collimated by the collimator; The detector is integrated on the arm frame; and the conveying device is used to drag the inspected goods through the scanning area and can avoid blocking the rays from shooting to the detector.

According to another aspect of the present utility model, a dual-radiation source aviation container/pallet goods inspection equipment includes two sets of scanning mechanisms, each set of scanning mechanisms includes a radiation source and a boom, and the two sets of mechanisms share the same conveying device. It is characterized in that: the two ray sources are arranged at an angle, and the two scanning mechanisms work simultaneously during scanning, and the ray shoots to the goods to be inspected from different directions. The collimators and detectors of the two sets of mechanisms are integrated on the combined arm frame. Under the arm frame, the transmission device composed of plate conveyor, roller conveyor, etc. drags the inspected goods through the scanning area. In order to prevent the transmission device from blocking the rays, the apron conveyor is divided into two parts at the beam flow, and the middle is connected by a transition roller. The slat conveyor and the roller conveyor are also connected by transition rollers. The outer end of the upper and lower roller conveyors is provided with a protective anti-collision frame. When scanning, after the bottom surface of the inspected goods touches the outermost roller of the roller table on the loading side, the roller conveyor is started, driven by the rollers, the inspected goods can be easily conveyed to the apron conveyor. The conveying mechanism reciprocates and drags the inspected goods through the scanning area. The roller conveyor in the equipment can also be made into a mechanism with a lifting function, so that the equipment does not need to be equipped with a transfer vehicle, has good compatibility, wide application range, and low operating costs. The device can also be applied to the airport or a transmission roller table outside the airport for detection.

Compared with the prior art, the utility model has a reasonable design and an ingenious structure. One scan can simultaneously obtain scanning images of the same object in two different directions, which improves the identification ability of the equipment, enhances the reliability of detection, and improves the detection efficiency of the equipment. Efficiency: two sets of scanning booms are integrated into one set of boom equipment, which reduces the total cost of equipment and makes installation easier.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic diagram of the top view of Fig. 1 rotated 90°;

Fig. 3 is a schematic diagram of the cross-sectional structure of Fig. 1 rotated by 90°.

Detailed ways

Referring to Figures 1 to 3, the double radiation source aviation container/pallet cargo inspection equipment (cargo inspection equipment) according to the present invention includes two sets of scanning mechanisms, which are used to scan the inspected cargo from different angles . Each of the two groups of scanning mechanisms includes: a radiation source 1-1, 1-2 for emitting radiation, a collimator (not shown in the figure) for collimating the radiation, and for receiving radiation calibrated by the collimator. Ray detectors 8,9. The cargo inspection equipment also includes an arm frame 2 on which the collimators and detectors of the two scanning mechanisms are integrated. In addition, the goods inspection equipment also includes a conveying device, which is used to drag the goods to be inspected through the scanning area without blocking the rays from shooting to the detector.

In the air container/pallet goods inspection equipment with dual radiation sources of the present invention, the two groups of mechanisms share the same conveying device. The two ray sources 1-1 and 1-2 are arranged at an angle, and the two scanning mechanisms work simultaneously during scanning, and the ray shoots to the goods to be inspected from different directions. Under the arm frame 2, the conveying equipment composed of the slat conveyor 3 and the roller conveyor 4 drags the inspected goods through the scanning area. In order to prevent the transmission device from blocking the rays, the apron conveyor 3 is divided into two parts at the beam current, and there is an interval between the two parts so as not to block the rays from shooting to the detector. The two parts are joined by a transition roller 6 in the middle. The slat conveyor 3 and the roller conveyor 4 are also connected by transition rollers 7 . The outer end of the upper and lower roller conveyors is provided with a protective anti-collision frame 5 .

The width of the interval between the slat conveyors 3 is designed according to the size of the detector and the size of the radiation beam there, so that the slat conveyor 3 does not block the radiation from the radiation source 1 - 2 to the detector 9 . At the intervals between the slat conveyors 3, a plurality of transition rollers 6, preferably two transition rollers 6, are arranged. The width of the interval between the transition rollers 6 is designed according to the size of the detector and the size of the radiation beam there, so that the transition rollers 6 do not block the radiation from the radiation source 1 - 2 to the detector 9 .

During scanning, after the bottom surface of the goods to be inspected touches the outermost roller of the roller table on the loading side, the roller conveyor 4 is started, and the goods to be inspected can be easily transferred to the apron conveyor 3 driven by the rollers. The conveying mechanism reciprocates and drags the inspected goods through the scanning area. At this time, due to the interval between the two apron conveyors 3 or the interval between the transition rollers 6, the apron conveyor 3 or the transition roller 6 does not block the radiation from the radiation source 1-2 to the detector 9. rays. Therefore, the identification capability of the device can be improved, the reliability of detection can be enhanced, and the detection efficiency of the device can be improved.

The roller conveyor 4 in the equipment can also be made into a mechanism with a lifting function, so that the equipment does not need to be equipped with a transfer vehicle, has good compatibility, wide application range, and low operating cost. The device can also be applied to the airport or a transmission roller table outside the airport for detection.

While an embodiment of the present invention has been shown and described, those skilled in the art will recognize that changes may be made to the embodiment without departing from the principles and spirit of the invention.

For example, according to the technical solution above, the radiation source may be an electron linear accelerator, an X-ray tube, an isotope radiation source or other radiation sources, which also belong to the protection scope of the present invention.

For example, according to the above-mentioned technical solution, if the goods to be detected are not air container/pallet goods, but small and medium-sized cars, etc., it also belongs to the protection scope of the present invention.

For example, according to the above-mentioned technical scheme, if the equipment is installed on the transport roller table of a certain container/pallet cargo in the airport for detection work, it also belongs to the protection scope of the present utility model.

For example, according to the above-mentioned technical solution, if the roller conveyor can be lifted and lowered freely under the control of the equipment, it also belongs to the protection scope of the present utility model.

For example, according to the above-mentioned technical solution, if the planes of the radiation beams emitted by two or more radiation sources are arranged in parallel to form such inspection equipment, it also belongs to the protection scope of the present invention.

Claims (13)

1. an examination of cargo equipment is characterized in that, comprising:

First and second scanning mechanisms, first and second scanning mechanisms are used for all comprising from the described goods of different angle scannings and each respectively:

Send the radiographic source of ray;

Be used to calibrate the collimating apparatus of described ray; With

Be used to receive detector by the ray of described collimating apparatus calibration;

Jib, the collimating apparatus of described first and second scanning mechanisms, detector are integrated on this jib; And

Conveyer, described conveyer are used to drag tested goods by scanning area and can avoid stopping that ray shoots is to detector.

2, examination of cargo equipment according to claim 1 is characterized in that, wherein said conveyer prevents to stop that ray shoots is to detector the position of detector place being set separately thereby avoid described detector thus.

3, examination of cargo equipment according to claim 2 is characterized in that, wherein said conveyer also comprises transition roller, and described transition roller is arranged on the disconnected position place of conveyer.

4. examination of cargo equipment according to claim 3 is characterized in that, wherein:

Conveyer comprises apron conveyor, and the disconnected position that described transition roller is arranged between the apron conveyor is sentenced the described apron conveyor of linking.

5. examination of cargo equipment according to claim 3 is characterized in that, wherein:

Conveyer comprises the roller bed type conveyor, and described transition roller is arranged on the roller bed type conveyor and sentences with the disconnected position between the apron conveyor and be connected between roller bed type conveyor and apron conveyor and the apron conveyor.

6. examination of cargo equipment according to claim 3 is characterized in that, wherein:

Described conveyer comprises roller bed type conveyor, transition roller, apron conveyor, transition roller, apron conveyor, transition roller, the roller bed type conveyor of arranging successively,

Jib is arranged between two apron conveyors, and transition roller is arranged on the disconnected position place between the apron conveyor.

7. according to claim 3 or 4 described examination of cargo equipment, it is characterized in that, wherein:

Described roller bed type conveyor has elevating mechanism.

8. examination of cargo equipment according to claim 1 is characterized in that, wherein:

The position of described detector and described radiographic source setting is: when conveyer drags tested goods when the scanning area, two radiographic sources lay respectively at the top of tested goods and a side of tested goods, so that the ray tested goods of directive from different directions.

9. examination of cargo equipment according to claim 1 is characterized in that, wherein:

Described conveyer is arranged on below the jib.

10. examination of cargo equipment according to claim 1 is characterized in that, wherein:

Described radiographic source comprises electron linear accelerator, X-ray pipe, isotope radioactive source.

11. examination of cargo equipment according to claim 1 is characterized in that, wherein:

The detector and the radiographic source of second scanning mechanism are set to: when conveyer drags tested goods when the scanning area, described radiographic source is arranged on the goods and of described detector is positioned under the goods.

12. examination of cargo equipment according to claim 11 is characterized in that, wherein:

The detector and the radiographic source of described first scanning mechanism are set to: when conveyer drags tested goods by scanning area, described radiographic source is arranged in a side of goods and of described detector is positioned on the goods, and in the described detector another is positioned at the opposite side relative with radiographic source of goods, and

In the detector of wherein said second scanning mechanism another is positioned at the described opposite side of goods.

13, examination of cargo equipment according to claim 1 is characterized in that, wherein said goods comprises aviation collection dress/pallet cargo and by the goods of lorry loading.

Images