WO2020140981A1

WO2020140981A1 - Radiation inspection equipment

Info

Publication number: WO2020140981A1
Application number: PCT/CN2020/070314
Authority: WO
Inventors: 孙尚民; 宋全伟; 宗春光; 胡煜; 周合军; 喻卫丰; 史俊平; 樊旭平; 曹金国
Original assignee: 同方威视技术股份有限公司; 清华大学; 同方威视科技（北京）有限公司
Priority date: 2019-01-04
Filing date: 2020-01-03
Publication date: 2020-07-09
Also published as: CN109521486A

Abstract

Radiation inspection equipment, having an inspection state and a transportation state, comprising a radiation detection device and protective walls (3). The radiation detection device comprises a ray source and a detector cooperating with the ray source. In the inspection state, the radiation detection device has an inspection channel (5) through which a subject passes. Each protective wall (3) comprises a plurality of movable wall bodies to make the protective wall (3) deformable. In the inspection state, the protective walls (3) are located on both sides of the inspection channel (5) to prevent radiation leakage. In the transportation state, at least some of the wall bodies of the protective wall (3) are closer to the radiation detection device in the direction of the inspection channel (5) than in the inspection state. High safety is provided during radiation inspection of the radiation inspection equipment in the inspection state, and in the transportation state, the overall transportation of the radiation inspection equipment is facilitated.

Description

Radiation inspection equipment

Related application

This disclosure is based on a Chinese patent application with an application number of 201910009521.6, an application date of January 4, 2019, and an invention titled "radiation inspection equipment", and claims its priority. The disclosure content of the Chinese patent application is here as It is incorporated in this disclosure as a whole.

Technical field

The present disclosure relates to the technical field of radiation inspection, in particular to a radiation inspection device.

Background technique

In the field of radiation inspection, radiation inspection equipment is mainly divided into three categories: rapid-pass radiation inspection equipment, combined mobile radiation inspection equipment, and trackless self-propelled radiation inspection equipment. The fast-passing radiation-like inspection equipment itself does not move, and the inspected vehicle is driven by the driver to quickly pass the equipment. The combination mobile radiation inspection equipment needs to run on the track, the detected object does not move, and the radiation inspection equipment moves to realize the radiation inspection of the inspected object such as the inspected vehicle and the inspected container. Non-track self-walking radiation inspection equipment does not require tracks, and relies on tires to achieve the walking function. None of the above three types of radiation inspection equipment can currently be transported as a whole.

Summary of the invention

The purpose of the present disclosure is to provide a radiation inspection device that facilitates overall transportation.

The radiation inspection equipment provided by the present disclosure has inspection status and transportation status, including:

A radiation detection device, including a ray source and a detector cooperating with the ray source, in the inspection state, the radiation detection device has an inspection channel for the object to pass through; and

The protective wall includes multiple walls with variable positions to make the protective wall deformable. In the inspection state, the protective wall is located on both sides of the inspection channel to prevent radiation leakage. In the transport state, At least part of the wall of the protective wall is closer to the radiation detection device in the direction of the inspection channel than in the inspection state.

In some embodiments, in the transport state, the protective wall and the radiation detection device form a rectangular parallelepiped structure.

In some embodiments, the radiation detection device includes:

First cabin

A boom is variably connected to the top of the first cabin, and the height of the boom in the inspection state is higher than that in the transportation state.

In some embodiments, the ray source is located in the first cabin, and in the inspection state, the protective wall near the side of the first cabin has a first position at the beam exit position of the ray source interval.

In some embodiments, the boom includes a cross arm, and the detector includes a first detection part provided on the cross arm and a second detection part with a variable position relative to the cross arm. In the inspection state, the second detection part is located on one side of the inspection tunnel. In the transportation state, the second detection part is provided on the cross arm.

In some embodiments,

The second detection part is hinged with the first detection part, and the second detection part changes the relative position with the cross arm by rotating around the first detection part; or,

The second detection part is hinged with the boom, and the second detection part changes the relative position with the cross arm by rotating around the boom.

In some embodiments, the radiation detection device includes a locking structure that locks the position of the second detection part relative to the boom in the inspection state and/or the transportation state.

In some embodiments, the first cabin includes a first shield that prevents radiation from leaking from the first compartment.

In some embodiments, the radiation detection device further includes a second cabin, the second cabin is spaced apart from the first cabin, and in the inspection state, the first cabin and the first cabin The two cabins are arranged on both sides of the inspection channel, and the boom is variably connected to the tops of the first cabin and the second cabin.

In some embodiments, the boom includes:

The first vertical arm is telescopically or vertically arranged on the first cabin;

The second vertical arm is telescopically or elevably arranged on the second cabin; and

A transverse arm, two ends of the transverse arm are respectively connected to the upper end of the first vertical arm and the upper end of the second vertical arm.

In some embodiments, the plurality of walls are divided into four groups of walls, and in the inspection state, the four groups of walls are respectively provided on two sides of the first cabin along the extending direction of the inspection channel And the two ends of the second cabin, in the transport state, the four groups of walls are located on the side of the first cabin away from the second cabin and away from the second cabin Between the sides of the first cabin.

In some embodiments, two sets of walls in the four sets of walls are respectively rotatably connected to both ends of the first cabin in the extending direction of the inspection channel; in the four sets of walls The other two groups of walls are rotatably connected to both ends of the second cabin along the extending direction of the inspection channel.

In some embodiments, the ray source is located in the first cabin, the detector is located on the boom, and in the inspection state, the protective wall near the side of the second cabin is continuous The protective wall provided on or near the side of the second cabin has a second space at the second cabin and the second cabin has a second protection against radiation leakage from the second space unit.

In some embodiments,

At least part of the plurality of walls can be translated relative to the remaining walls or the radiation detection device; and/or,

At least part of the plurality of walls can be rotated relative to the remaining walls or the radiation detection device; and/or,

Among the plurality of walls, at least part of the walls can be repeatedly disassembled and assembled relative to the remaining walls or the radiation detection device.

In some embodiments, the radiation inspection apparatus further includes a wheel set for overall movement of the radiation inspection apparatus.

In some embodiments, the wheel set includes tires and/or track wheels.

In some embodiments, the wheel set is detachably connected to the radiation detection device and/or the protective wall.

In some embodiments, the radiation inspection apparatus includes an auxiliary support device that is detachably connected to the radiation detection device, and at least part of the wheels in the wheel set are mounted on the auxiliary support device.

In some embodiments, in the inspection state, the auxiliary support device is connected to the radiation detection device; in the transport state, the auxiliary support device is disconnected from the radiation detection device.

In some embodiments, in the transport state, the protective wall is located inside the radiation detection device and/or is attached to the radiation detection device.

Based on the radiation inspection equipment provided by the present disclosure, when inspecting the inspected objects such as containers, vehicles, etc., it is switched to the inspection state, protective walls are arranged on both sides of the inspection channel to prevent radiation leakage, and the safety of the radiation inspection equipment during radiation inspection When the inspection is not required, such as transit transportation or storage, change the position of the protective wall to make the radiation inspection equipment in a transport state, reduce the overall space occupied by the radiation inspection equipment, and facilitate the radiation inspection equipment. It is transported as a whole and has a small footprint when stored. Because the radiation inspection equipment can be transported or stored as a whole, it also helps to reduce the installation and commissioning work when it is used again, and is helpful for the radiation inspection equipment to quickly prepare for inspection.

Other features and advantages of the present disclosure will become clear through the following detailed description of exemplary embodiments of the present disclosure with reference to the drawings.

BRIEF DESCRIPTION

The drawings described herein are used to provide a further understanding of the present disclosure and form a part of the application. The exemplary embodiments and descriptions of the present disclosure are used to explain the present disclosure and do not constitute an undue limitation on the present disclosure. In the drawings:

FIG. 1 is a schematic structural diagram of a radiation inspection device in an inspection state according to an embodiment of the present disclosure.

FIG. 2 is a schematic view of the top structure of FIG. 1.

3 is a schematic structural diagram of the radiation inspection device shown in FIG. 1 in a transport state.

4 is a schematic diagram of the top structure of FIG. 3.

FIG. 5 is a schematic structural diagram of a radiation inspection device in an inspection state according to another embodiment of the present disclosure.

FIG. 6 is a schematic view of the top structure of FIG. 5.

7 is a schematic structural schematic diagram of a radiation inspection device in an inspection state according to yet another embodiment of the present disclosure.

FIG. 8 is a schematic top view diagram of FIG. 7.

detailed description

The technical solutions in the embodiments of the present disclosure will be described clearly and completely in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, but not all the embodiments. The following description of at least one exemplary embodiment is actually merely illustrative, and in no way serves as any limitation to the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present disclosure.

Unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure. At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Techniques, methods and equipment known to those of ordinary skill in the related art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorized specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiment may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following drawings, therefore, once an item is defined in one drawing, there is no need to discuss it further in subsequent drawings.

In the description of this disclosure, it should be understood that the use of "first", "second" and other words to define parts is only for the purpose of distinguishing the corresponding parts. Unless otherwise stated, the above words are not special Meaning, and therefore cannot be understood as a limitation to the protection scope of the present disclosure.

In the description of the present disclosure, it should be understood that directional words such as "front, back, top, bottom, left, right", "horizontal, vertical, vertical, horizontal" and "top and bottom" are not Indication and suggestion that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the scope of protection of the present disclosure; the orientation words "inner and outer" refer to the outline relative to each component itself Inside and outside.

As shown in FIGS. 1 to 8, an embodiment of the present disclosure provides a radiation inspection device. The radiation inspection device has an inspection state and a transportation state, and mainly includes a radiation detection device and a protective wall 3.

The radiation detection device includes a radiation source and a detector cooperating with the radiation source. In the inspection state, the radiation detection device has an inspection channel 5 for the object to pass through. The term "passing" as used herein includes both the radiation inspection device being stationary and the test object moving through the inspection channel 5, as well as the object being stationary. The movement of the radiation inspection device causes the object to pass the inspection channel 5 passively, as well as the inspection The object and the radiation inspection device move at the same time, and the object to be inspected relatively moves from one end of the inspection channel 5 to the other end.

The protective wall 3 includes a plurality of walls with variable positions to make the protective wall 3 deformable. In the inspection state, the protective walls 3 are located on both sides of the inspection channel 5 to prevent radiation leakage. At least part of the wall of the protective wall 3 is closer to the radiation detection device in the direction of the inspection channel 5 than in the inspection state. For example, in some embodiments, in the transport state, the protective wall 3 is located inside the radiation detection device and/or is attached to the radiation detection device.

The radiation inspection equipment of the embodiment of the present disclosure expands to the inspection state when inspecting the inspected objects such as containers, vehicles, etc., and the protective walls 3 are arranged on both sides of the inspection passage 5 to prevent radiation leakage. High security, when no inspection is required, such as transit transportation or storage, change the position of the protective wall 3 to make the radiation inspection equipment in a transport state, reduce the overall space occupied by the radiation inspection equipment, and facilitate radiation Check the overall transportation of the equipment, and the storage area is small. Because the radiation inspection equipment can be transported or stored as a whole, it also helps to reduce the installation and commissioning work when it is used again, and is helpful for the radiation inspection equipment to quickly prepare for inspection. In the transportation state, the protective wall 3 located inside the radiation detection device and/or attached to the radiation detection device can make full use of the space in the transportation state, which is more conducive to reducing the overall space occupied by the radiation inspection equipment. At the same time, it can make Radiation inspection equipment has a high overall stability in the transport state.

As shown in FIGS. 3 and 4, in some embodiments, in the transport state, the protective wall 3 and the radiation detection device form a rectangular parallelepiped structure. The setting of the transportation state makes the radiation inspection equipment more suitable for the whole transit transportation and storage.

As shown in FIGS. 1 to 8, the radiation detection device includes a first cabin 2 and an arm frame 1. The boom 1 is variably connected to the top of the first cabin 2. The height of the boom 1 in the inspection state is higher than that in the transportation state. The variable height of the arm frame 1 is arranged to facilitate the radiation detection device to have a higher height of the inspection channel 5 during the inspection state, and can inspect vehicles or containers with a higher height, so that the radiation detection device has a wider inspection range. The radiation detection device has a lower height in the transportation state, which is conducive to the overall transfer transportation of the radiation inspection equipment and reduces the space occupation during storage.

In some embodiments, the ray source is located in the first cabin 2 and the detector is located on the arm frame 1. In the inspection state, the protective wall 3 on the side close to the first cabin 2 has the first position at the beam exit position of the ray source interval. At this time, the first cabin 2 may include a first shield part that prevents radiation from leaking from the first interval. The first protection part may be, for example, a partial shell of the first cabin 2 or a protection board provided in the first cabin 2.

As shown in FIGS. 1 to 8, in some embodiments, the radiation detection device further includes a second cabin 4. The second cabin 4 is spaced apart from the first cabin 2. In the inspection state, the first cabin 2 and the second cabin 4 are arranged on both sides of the inspection passage 5, and the boom 1 is connected to the tops of the first cabin 2 and the second cabin 4 with a variable height.

The first cabin 2 and the second cabin 4 are installed at the same time, and the boom 1 is installed on the first cabin 2 and the second cabin 4, so that the cooperation relationship of each part of the radiation inspection equipment is more stable, which is beneficial to reduce the transition The on-site debugging work of the post-radiation inspection equipment is also conducive to the overall stability of the radiation inspection equipment in various states, and the layout of each component of the radiation detection device is also more flexible.

As shown in FIGS. 1 to 8, in some embodiments, the boom 1 includes a first vertical arm, a second vertical arm, and a transverse arm. The first vertical arm is provided on the first cabin 2 to be telescopic or liftable. The second vertical arm is telescopically or vertically arranged on the second cabin 4. The two ends of the cross arm are respectively connected to the upper end of the first vertical arm and the upper end of the second vertical arm. This setting facilitates the rapid and accurate change of the position of the boom 1 when the radiation inspection equipment is switched between the inspection state and the transportation state, and is beneficial to reducing the debugging work of the radiation inspection equipment after the transition.

In some embodiments, the detector includes a first detection portion provided on the cross arm and a second detection portion with a variable position relative to the cross arm. In the inspection state, the second detection portion is located on one side of the inspection tunnel, during transportation In this state, the second detection unit is provided on the cross arm. This setting is helpful for the detector to adapt to the inspection state and the transportation state, and can prevent the detector from affecting the switching between the inspection state and the transportation state of the radiation inspection device without affecting the function of the detector.

For example, in the inspection state, the second detection part may be vertically located on one side of the inspection tunnel, or may have a certain angle with the vertical direction; in the transportation state, the second detection part may be horizontal with the first detection part, for example They are arranged side by side or side by side in the vertical direction along the extension direction of the cross arm.

In some embodiments, the second detection part may be hinged with the first detection part, and the second detection part changes the relative position with the cross arm by rotating around the first detection part. In other embodiments, the second detection part may be hinged with the boom 1, and the second detection part may change the relative position with the cross arm by rotating around the boom 1. For example, the second detection part may be hinged with the horizontal arm or the vertical arm. The second detection part is hinged to the first detection part or the arm frame 1, which facilitates the rapid and accurate positioning of the detector when the radiation inspection device is switched between the inspection state and the transportation state, thereby shortening the time for switching the radiation inspection device and facilitating inspection In the state, the detector is in an accurate detection position.

The connection between the second detection part and the first detection part or the arm frame 1 is not limited to the hinge, for example, in the inspection state and the transportation state, the second detection part may also be detachably connected to the corresponding position.

In some embodiments, the radiation detection device may further include a locking structure that locks the position of the second detection part relative to the boom 1 in the inspection state and/or the transportation state.

The present disclosure does not limit the arrangement of equipment in the first cabin 2 or the second cabin 4, for example, the second cabin 4 of the present disclosure may be provided with electrical equipment and a console required by a detector, radiation inspection equipment. The first cabin 2 and the second cabin 4 may each be provided with a ray source, a detector or the like.

As shown in FIGS. 1-8, in some embodiments, multiple walls are divided into four groups of walls. In the inspection state, the four groups of walls are respectively provided at both ends of the first cabin 2 and the two ends of the second cabin 4 along the extending direction of the inspection passage 5. In the transport state, the four groups of walls are located between the side of the first cabin 2 away from the second cabin 4 and the side of the second cabin 4 away from the first cabin 2. This setting facilitates the switching between the inspection state and the transportation state of the radiation inspection device with higher efficiency. In addition, the protective wall 3 of the radiation inspection device in the transportation state occupies less space than the space occupied by the radiation detection device, and can even use the space occupied by the radiation detection device without occupying the space other than the space occupied by the radiation detection device.

In some embodiments, when multiple walls are divided into the aforementioned four groups of walls, two groups of the four groups of walls may be rotatably connected to the extension direction of the first cabin 2 along the inspection channel 5 Both ends. The other two groups of the four groups of walls can be rotatably connected to both ends of the second cabin 4 along the extending direction of the inspection channel 5 respectively. This setting is convenient for the radiation inspection equipment to switch between the inspection state and the transportation state, saving time and effort during the switching process, and facilitating accurate positioning between the protective wall 3 and the radiation detection device.

In some embodiments, in the inspection state, the protective wall 3 near the side of the second cabin 4 is continuously provided. In this case, the protective work on the side of the second cabin 4 is entirely undertaken by the protective wall 3. At this time, the second cabin 4 does not need to be specially designed for protection.

In some embodiments, in the inspection state, the protective wall 3 near the side of the second cabin 4 has a second interval at the second cabin 4 and the second cabin 4 has a first 2. Protection Department. The second protection part may be, for example, a part of the shell of the second cabin 4 or a protection member provided in the second cabin 4, such as a protection board.

The present disclosure does not limit the movement manners of the multiple walls of the protective wall, for example, at least part of the multiple walls can be translated relative to the remaining walls or the radiation detection device; and/or at least part of the multiple walls The body is rotatable relative to the remaining walls or the radiation detection device; and/or at least part of the plurality of walls can be repeatedly disassembled and assembled relative to the remaining walls or the radiation detection device.

As shown in FIGS. 5 to 8, in some embodiments, the radiation inspection apparatus further includes a wheel set for overall movement of the radiation inspection apparatus. The wheel set may include tires 6 and/or track wheels 8.

In some embodiments, the wheel set is detachably connected to the radiation detection device and/or the protective wall 3. As an embodiment in which at least part of the wheels in the wheel set is detachably connected to the radiation detection device, as shown in FIGS. 5 to 8, in some embodiments, the radiation inspection apparatus includes an auxiliary device detachably connected to the radiation detection device Support device 7, at least part of the wheels in the wheel set are mounted on the auxiliary support device 7. The provision of the auxiliary support device 7 is conducive to the overall stability of the radiation inspection equipment and to the quick disassembly and assembly of the wheel set.

In some embodiments, in the inspection state, the auxiliary support device 7 is connected to the radiation detection device; in the transport state, the auxiliary support device 7 is disconnected from the radiation detection device and accommodated in the space formed by the radiation detection device and the protective wall 3 . This setting is beneficial to reduce the space occupied by the radiation inspection equipment in the transportation state.

In the case where the wheel set is detachably connected to the radiation detection device, for example, when the auxiliary support device 7 is detachably connected to the radiation inspection device, the radiation inspection device can quickly pass the radiation-like inspection device according to the requirements of radiation inspection 3. Switch between at least two types of radiation inspection equipment in the combination of mobile radiation inspection equipment and non-track self-propelled radiation inspection equipment, thereby expanding the application of radiation inspection equipment. And can use the same R & D platform and manufacturing platform to achieve the development and manufacturing of three types of radiation inspection equipment.

The protective wall 3 or the protective part of each embodiment of the present disclosure may include, for example, a heavy metal shielding plate, such as a lead plate.

The radiation inspection apparatuses of the embodiments of the present disclosure will be described below with reference to FIGS. 1 to 8.

1 to 4 are schematic structural diagrams of a radiation inspection device according to an embodiment of the present disclosure.

As shown in FIGS. 1 to 4, the radiation inspection apparatus of this embodiment includes a radiation detection device and a protective wall 3.

The radiation detection device includes a ray source, a detector, a first cabin 2, a second cabin 4, and an arm frame 1. The ray source is arranged in the first cabin 2. The detector is arranged on the arm frame 1. The detector cooperates with the ray source to perform radiation inspection on the object passing through the inspection channel 5 in the inspection state. In Figure 1, the radiation inspection device is in the inspection state.

As shown in FIGS. 1 to 4, the second cabin 4 and the first cabin 2 are spaced apart. In the inspection state, the first cabin 2 and the second cabin 4 are located on both sides of the inspection passage 5.

The boom 1 includes a first vertical arm, a second vertical arm and a transverse arm. The first vertical arm is provided on the first cabin 2 to be telescopic or liftable. The second vertical arm is telescopically or vertically arranged on the second cabin 4. The two ends of the cross arm are respectively connected to the upper end of the first vertical arm and the upper end of the second vertical arm. As shown in FIGS. 1 and 3, through the expansion or contraction of the first vertical arm and the second vertical arm relative to the first cabin 2 and the second cabin 4, the boom 1 achieves an overall height change, and the height in the inspection state Above the height in the transport state.

As shown in FIG. 1, in the inspection state, the first cabin 2, the second cabin 4 and the boom 1 form an inspection passage 5.

As shown in FIGS. 1 to 4, the protective wall 3 is divided into four groups of walls, and in the inspection state, the four groups of walls are respectively provided in the first cabin 2 along the extending direction of the inspection channel 5 (the up and down direction in FIG. 1) At the two ends of the second cabin 4 and the second cabin 4, in the transport state, four sets of walls are located between the first cabin 2 and the second cabin 4.

Two of the four groups of walls are rotatably connected to both ends of the first cabin 2 along the extending direction of the inspection channel 5 (upper and lower ends in FIG. 1); the two groups of walls are respectively rotatably connected At both ends of the second cabin 4 along the extending direction of the inspection passage 5 (upper and lower ends in FIG. 1).

In the inspection state, the protective wall 3 on the side close to the first cabin 2 has a first interval at the beam exit position of the radiation source so that the radiation emitted by the radiation source can be smoothly irradiated onto the object to be inspected. Part of the hull of the first cabin 2 forms a first shielding part that prevents radiation from leaking from the first compartment. In the inspection state, the protective wall 3 close to the side of the second cabin 4 has a second compartment at the second cabin 4, and a part of the shell of the second cabin 4 forms a second protection against the leakage of radiation from the second compartment unit.

As shown in FIGS. 1 to 4, the height of the protective wall 3 of this embodiment is substantially equal to the heights of the first cabin 2 and the second cabin 4.

As shown in FIGS. 3 and 4, the radiation inspection equipment is in a transport state. In this embodiment, the boom 1 is lowered so that its top surface is flush with the top surfaces of the first cabin 2 and the second cabin 4. The height of the radiation inspection equipment is approximately equal to the heights of the first cabin 2 and the second cabin 4, and each group of walls of the protective wall 3 rotates inward toward the center line of the inspection passage 5 to the first cabin 2 and the second cabin体4之间。 Between the body 4. In the transport state, each group of walls is located between the two end surfaces of the first cabin 2 and the second cabin 4 in the extending direction of the inspection passage 5, so that the width of the radiation inspection equipment in the extending direction of the inspection passage 5 is The widths of the first cabin 2 and the second cabin 4 are approximately equal. Therefore, in the transportation state, the protective wall 3 and the radiation detection device form a rectangular parallelepiped structure.

5 and 6 are schematic structural diagrams of a radiation inspection device in an inspection state according to another embodiment of the present disclosure.

As shown in FIGS. 5 and 6, the difference between this embodiment and the embodiments shown in FIGS. 1 to 4 is that the radiation inspection apparatus includes an auxiliary support device 7 detachably connected to the radiation detection device and mounted on the auxiliary support device 7 The upper tire 6 is used for the whole movement of the radiation inspection equipment. The radiation inspection equipment is supported on the ground by the tire 6 and can walk on the ground.

In the inspection state, the auxiliary support device 7 is connected to the radiation detection device. In the transport state, the auxiliary support device 7 is disconnected from the radiation detection device. In the transport state, the auxiliary support device 7 may be accommodated in the space formed by the radiation detection device and the protective wall 3, or may be placed or transported separately. Therefore, the radiation inspection device does not occupy much space due to the provision of the auxiliary support device 7 and the tire 6 in the transportation state.

For contents not described in this embodiment, reference may be made to the embodiments shown in FIGS. 1 to 4.

7 and 8 are schematic structural diagrams of a radiation inspection device in an inspection state according to yet another embodiment of the present disclosure.

As shown in FIGS. 7 and 8, the difference between this embodiment and the embodiments shown in FIGS. 1 to 4 is that the radiation inspection apparatus includes an auxiliary support device 7 detachably connected to the radiation detection device and an auxiliary support device mounted on the auxiliary support device 7 on the track wheel 8 for the overall movement of the radiation inspection equipment. The radiation inspection device is supported on the rail 9 laid on the ground by the rail wheel 8 and can walk along the rail 9.

In the inspection state, the auxiliary support device 7 is connected to the radiation detection device. In the transport state, the auxiliary support device 7 is disconnected from the radiation detection device and accommodated in the space formed by the radiation detection device and the protective wall 3. Therefore, the radiation inspection device does not occupy much space due to the provision of the auxiliary support device 7 and the track wheel 8 in the transportation state.

As can be seen from the above description, the radiation inspection apparatus of the embodiments of the present disclosure has at least one of the following technical effects:

The radiation inspection equipment expands to the inspection state when inspecting the test object, and the protective walls 3 are arranged on both sides of the inspection channel 5 to prevent radiation leakage. The radiation inspection equipment has high safety when performing radiation inspection and does not need to be inspected At this time, the position of the wall of the protective wall 3 is changed so that the radiation inspection equipment is in a transport state, which is convenient for the overall transportation of the radiation inspection equipment, and the storage area is small.

Because the radiation inspection equipment can be transported or stored as a whole, it also helps to reduce the installation and commissioning work when it is used again, and is helpful for the radiation inspection equipment to quickly prepare for inspection.

By whether or not the wheel set is installed on the radiation detection device, the purpose of quickly switching between radiation-like inspection equipment, combined mobile radiation inspection equipment, and track-free self-propelled radiation inspection equipment can be achieved, which is easy to meet different needs Customers, different sites have different needs for radiation inspection equipment. Three types of radiation inspection equipment can also be developed and manufactured through the same R&D platform and manufacturing platform.

Radiation inspection equipment has the advantages of no civil construction, self-protection and small footprint.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure but not to limit it; although the present disclosure has been described in detail with reference to the preferred embodiments, persons of ordinary skill in the art should understand that: Modifications or equivalent replacements of some technical features of the disclosed specific embodiments should be covered by the technical solutions claimed in the present disclosure.

Claims

A radiation inspection device with inspection status and transportation status, including:

A radiation detection device, including a ray source and a detector cooperating with the ray source, in the inspection state, the radiation detection device has an inspection channel (5) for the object to pass through; and

The protective wall (3) includes a plurality of walls with variable positions to make the protective wall (3) deformable. In the inspection state, the protective wall (3) is located at two positions of the inspection channel (5) Side to prevent radiation leakage, in the transport state, at least part of the wall of the protective wall (3) is closer to the radiation detection device in the direction of the inspection passage (5) than in the inspection state .
The radiation inspection apparatus according to claim 1, wherein in the transport state, the protective wall (3) and the radiation detection device form a rectangular parallelepiped structure.
The radiation inspection apparatus according to claim 1, wherein the radiation detection device includes:

The first cabin (2);

A boom (1) is variably connected to the top of the first cabin (2), and the height of the boom (1) in the inspection state is higher than that in the transportation state.
The radiation inspection apparatus according to claim 3, wherein the radiation source is located in the first cabin (2), and in the inspection state, close to the protection on the side of the first cabin (2) The wall (3) has a first interval at the beam exit position of the ray source.
The radiation inspection apparatus according to claim 3, wherein the arm frame (1) includes a cross arm, and the detector includes a first detection portion provided on the cross arm and a variable position relative to the cross arm In the inspection state, the second detection part is located on one side of the inspection tunnel, and in the transportation state, the second detection part is provided on the cross arm.
The radiation inspection apparatus according to claim 5, wherein

The second detection part is hinged with the first detection part, and the second detection part changes the relative position with the cross arm by rotating around the first detection part; or,

The second detection part is hinged with the arm bracket (1), and the second detection part changes the relative position with the cross arm by rotating around the arm bracket (1).
The radiation inspection apparatus according to claim 5, wherein the radiation detection device includes a locking structure that locks the position of the second detection part relative to the boom (1) in the inspection state and/or in the transportation state.
The radiation inspection apparatus according to claim 4, wherein the first cabin (2) includes a first protection part that prevents radiation from leaking from the first interval.
The radiation inspection apparatus according to claim 3, wherein the radiation detection device further comprises a second cabin (4), the second cabin (4) is spaced apart from the first cabin (2), in In the inspection state, the first cabin (2) and the second cabin (4) are arranged on both sides of the inspection passage (5), and the boom (1) is variably connected to The tops of the first cabin (2) and the second cabin (4).
The radiation inspection apparatus according to claim 9, wherein the boom (1) includes:

The first vertical arm is provided on the first cabin (2) telescopically or elevatingly;

The second vertical arm is telescopically or vertically arranged on the second cabin (4); and

A transverse arm, two ends of the transverse arm are respectively connected to the upper end of the first vertical arm and the upper end of the second vertical arm.
The radiation inspection apparatus according to claim 9, wherein the plurality of walls are divided into four groups of walls, and in the inspection state, the four groups of walls are respectively provided along the extending direction of the inspection channel (5) At both ends of the first cabin (2) and both ends of the second cabin (4), in the transport state, the four groups of walls are located away from the first cabin (2) Between a side of the second cabin (4) and a side of the second cabin (4) away from the first cabin (2).
The radiation inspection apparatus according to claim 11, wherein two of the four groups of walls are respectively rotatably connected to the extension of the first cabin (2) along the inspection channel (5) Two ends in the direction; the other two groups of the four groups of walls are respectively rotatably connected to both ends of the second cabin (4) along the extending direction of the inspection channel (5).
The radiation inspection apparatus according to claim 9, wherein the radiation source is located in the first cabin (2), and the detector is located on the boom (1), in the inspection state, close to the The protective wall (3) on the side of the second cabin (4) is provided continuously or close to the protective wall (3) on the side of the second cabin (4) in the second cabin (4 ) Has a second compartment and the second cabin (4) has a second shield that prevents radiation from leaking from the second compartment.
The radiation inspection apparatus according to any one of claims 1 to 13, wherein

At least part of the plurality of walls can be translated relative to the remaining walls or the radiation detection device; and/or,

At least part of the plurality of walls can be rotated relative to the remaining walls or the radiation detection device; and/or,

Among the plurality of walls, at least part of the walls can be repeatedly disassembled and assembled relative to the remaining walls or the radiation detection device.
The radiation inspection apparatus according to any one of claims 1 to 13, wherein the radiation inspection apparatus further includes a wheel set for overall movement of the radiation inspection apparatus.
The radiation inspection apparatus according to claim 15, wherein the wheel set includes tires (6) and/or track wheels (8).
The radiation inspection apparatus according to claim 15, wherein the wheel set is detachably connected to the radiation detection device and/or the protective wall (3).
The radiation inspection apparatus according to claim 17, wherein the radiation inspection apparatus includes an auxiliary support device (7) detachably connected to the radiation detection device, and at least part of the wheels of the wheel set are mounted on the auxiliary support On the device (7).
The radiation inspection apparatus according to claim 15, wherein in the inspection state, the auxiliary support device (7) is connected to the radiation detection device; in the transport state, the auxiliary support device (7) is The radiation detection device is disconnected.
The radiation inspection apparatus according to any one of claims 1 to 13, wherein in the transport state, the protective wall (3) is located inside the radiation detection device and/or is attached to the radiation detection device.