WO2020140996A1

WO2020140996A1 - Security check device and transition method based on same

Info

Publication number: WO2020140996A1
Application number: PCT/CN2020/070469
Authority: WO
Inventors: 樊旭平; 宋全伟; 孙尚民; 史俊平; 何远; 胡煜
Original assignee: 同方威视技术股份有限公司; 同方威视科技（北京）有限公司; 清华大学
Priority date: 2019-01-04
Filing date: 2020-01-06
Publication date: 2020-07-09
Also published as: CN109633768A

Abstract

A security check device and a transition method based on the security check device, the security check device comprising a cantilever (1), a first cabin (2) and a protective wall (3). The cantilever (1) is provided with a plurality of detectors and is used for forming a checking channel (5); the first cabin (2) is provided with a radiation source and is connected to the cantilever (1); and the protective wall (3) is connected to the first cabin (2) or the cantilever (1) and is used for carrying out ray protection on an object to be protected. The cantilever (1), the first cabin (2) and the protective wall (3) are configured so as to be transported together in a connected state.

Description

Safety inspection device and transition method based on the safety inspection device

This application is based on the application with Chinese application number 201910009042.4 and the application date is January 4, 2019, and claims its priority. The disclosure content of this Chinese application is hereby incorporated into this application as a whole.

Technical field

The present disclosure relates to the technical field of scanning inspection, in particular to a security inspection device and a transition method based on the security inspection device.

Background technique

At present, for the purpose of combating smuggling and counter-terrorism, customs, civil aviation airports and railway systems and other important departments usually scan and inspect all vehicles and goods that pass through customs. The scanning inspection system uses the principle of radiation imaging to scan the container/vehicle to be inspected without opening the box to obtain a perspective image of the object in the box or the vehicle, and then analyze the image to find the hidden box Suspicious items in or inside the car.

In the related art, when the scanning inspection system is transported, the various components of the inspection system (such as booms, cabins, detectors, radiation sources, etc.) are first disassembled, and then transported separately.

It should be noted that the information disclosed in the background part of the disclosure is only intended to increase the understanding of the overall background of the disclosure, and should not be regarded as an acknowledgement or in any way implying that the information constitutes what is known to those skilled in the art Related technologies.

Summary of the invention

According to an aspect of the present disclosure, a security inspection device is provided, including:

The boom is equipped with multiple detectors and is used to form an inspection channel;

The first cabin is equipped with a ray source and is connected to the boom; and

The protective wall is connected to the first cabin or arm frame, and is used for radiation protection of the object to be protected;

Among them, the boom, the first cabin and the protective wall are set to be transported together in a connected state.

In some embodiments, in the extending direction of the inspection channel, the relative position between the boom and the first cabin is configured to remain unchanged in the transportation state and working state of the safety inspection device.

In some embodiments, the protective wall can be folded toward the center line of the inspection channel to shorten the length of the protective wall in the extending direction of the inspection channel during transportation.

In some embodiments, the protective wall includes:

First protection section;

The second protection section; and

Connector

Wherein, the first protective section and the second protective section are movably connected by a connecting member, and the second protective section can be folded toward the center line of the inspection channel relative to the first protective section.

In some embodiments, in the extending direction of the inspection passage, the first protective section is disposed between the front and rear sides of the first cabin, and the second protective section is at least partially disposed on the front side or rear of the first cabin Outside the side, and the folded second protective section is located between the front and back sides of the first cabin.

In some embodiments, the height of the protective wall is set to be less than or equal to the height of the first cabin.

In some embodiments, in the extending direction of the inspection channel, the height of the cross section of the protective wall gradually decreases away from the boom.

In some embodiments, the boom is liftable relative to the first cabin.

In some embodiments, the boom is configured to be in a raised state when the safety inspection device is in a working state; and is in a landed state when the safety inspection device is in a transport state, and does not exceed the height of the first cabin after the landing or road driving Maximum height limit.

In some embodiments, the safety inspection device further includes a second cabin body, and the arm frame has a gate structure including a transverse arm and two vertical arms respectively connected to the two sides of the transverse arm. The first cabin and the second cabin are respectively Two vertical arms are connected.

In some embodiments, the first cabin is configured to be fixedly arranged relative to the ground in the working state of the safety inspection device.

In some embodiments, the width of the boom in the direction perpendicular to the extending direction of the inspection channel is adjustable.

According to another aspect of the present disclosure, there is provided a transition method based on the above security inspection device, including:

In a state where the arm frame is connected to the first cabin body, and the protective wall is connected to the first cabin body or the arm frame, the arm frame, the first cabin body, and the protective wall are transported together to achieve the transition.

In some embodiments, before transportation, the method further includes:

Fold the protective wall towards the center line of the inspection channel.

In some embodiments, before transportation, the method further includes:

Lower the boom to not exceed the height of the first cabin or the maximum limit of road travel.

Based on the above technical solution, the present disclosure can effectively solve the problem that the inspection system in the related art needs to be reinstalled and debugged at the inspection site by setting the boom, the first cabin and the protective wall to be transported together in a connected state, which is beneficial to Reduce installation time and manpower input; moreover, the protective wall is also transported together with the boom and the first cabin in a connected state, which can avoid rebuilding the protective wall and carrying out civil work of the protective wall at the inspection site, so that the safety inspection device is transported After arriving at the inspection site, it can be put into work quickly, greatly reducing the time spent by the safety inspection device from transportation to putting into work, and improving the transfer efficiency.

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

In order to more clearly explain the technical solutions in the embodiments or related technologies of the present disclosure, the drawings required for the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings in the following description are only The disclosed embodiments, for those of ordinary skill in the art, can also obtain other drawings according to the provided drawings without creative efforts.

FIG. 1 is a front view of some embodiments of a safety inspection device of the present disclosure in a working state.

FIG. 2 is a top view of some embodiments of the safety inspection device of the present disclosure in a working state.

3 is a front view of some embodiments of the safety inspection device of the present disclosure in a transport state.

4 is a top view of some embodiments of the safety inspection device of the present disclosure in a transport state.

detailed description

The technical solutions in the embodiments 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. Based on the embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present disclosure.

In the description of the present disclosure, it should be understood that the terms "center", "landscape", "portrait", "front", "rear", "left", "right", "upper", "lower", " The orientation or positional relationship indicated by “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present disclosure and The description is simplified, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present disclosure.

After research, the inventor found that the components of the inspection system were first disassembled and then transported separately. When transported to the inspection site, they need to be reinstalled and recommissioned, and the site needs to re-build protective walls and develop protective walls. Civil engineering work takes a long time and requires a lot of manpower input. Therefore, the inspection system is cumbersome when it needs to be transferred, and is affected by repeated installations many times, and it is not easy to ensure the detection accuracy of the scanning device. Based on this, the inventor made structural improvements to the security inspection device.

Referring to FIGS. 1 and 2, in a schematic embodiment of the safety inspection device provided by the present disclosure, the safety inspection device includes an arm frame 1, a first cabin 2 and a protective wall 3, wherein the arm frame 1 There are multiple detectors on it, the first cabin 2 is provided with a ray source, and the arm frame 1 is used to form an inspection channel 5. When the object to be inspected passes through the inspection channel 5, the rays emitted by the ray source pass through the object to be inspected Received by the detector, by analyzing the information received by the detector, you can judge whether the detected object meets the safety standards.

The first cabin 2 is connected to the arm frame 1 and the protective wall 3 for radiation protection of the object to be protected is connected to the first cabin 2 or the arm frame 1, the arm frame 1, the first cabin 2 and the protective wall 3 are provided For transportation together in the connected state.

In the above exemplary embodiment, by setting the boom 1, the first cabin 2 and the protective wall 3 to be transported together in a connected state, it can effectively solve the problem that the inspection system in the related art needs to be reinstalled and debugged at the inspection site The problem is conducive to reducing the installation time and manpower input; moreover, the protective wall is also transported together with the boom and the first cabin in a connected state, which can avoid rebuilding the protective wall and carrying out civil work of the protective wall at the inspection site, making it safe After the inspection device is transported to the inspection site, it can be put into work quickly, which greatly shortens the time taken by the safety inspection device from transportation to work and improves the efficiency of the transfer.

Further, in the extending direction of the inspection channel 5, the relative position between the boom 1 and the first cabin 2 is configured to remain unchanged in the transportation state and working state of the safety inspection device. The advantage of this arrangement is that the relative position of the detector provided on the boom 1 and the ray source provided on the first cabin 2 can be maintained in the transportation state and working state, saving the need for the detector and The time for re-commissioning the relative position of the ray source enables the safety inspection device to be put into inspection work faster after it is removed from the transportation equipment.

As shown in FIG. 1, the arm frame 1 has a gate structure. The arm frame 1 includes two vertical arms and a horizontal arm connected at the top of the two vertical arms. The inspection channel 5 is formed between the two vertical arms, as shown in FIG. 2 As shown, the above “extension direction of the inspection channel 5” is a direction perpendicular to both the longitudinal direction of the vertical arm and the longitudinal direction of the transverse arm, and the following “center line of the inspection channel 5” is the direction extending from the inspection channel 5 The centerline parallel and in the middle of the inspection channel 5 is located between the two vertical arms.

In some embodiments, the protective wall 3 can be folded toward the center line of the inspection channel 5 to shorten the length of the protective wall 3 in the extending direction of the inspection channel 5 during transportation. This arrangement can reduce the occupied space of the protective wall 3 and facilitate transportation.

When the safety inspection device is in a working state, the protective walls 3 are located on both sides of the inspection channel 5 to prevent radiation leakage. When the safety inspection device is in a transport state, the protective wall 3 is located inside the first cabin 2 and/or is attached to the first cabin 2. In the transportation state, the protective wall 3 and the first cabin 2 are closed to form a rectangular parallelepiped structure. The setting form of the transportation state makes the safety inspection device more suitable for the whole transit transportation and storage.

Specifically, the protective wall 3 includes a first protective section, a second protective section, and a connecting member. The first protective section and the second protective section are movably connected by the connecting member, and the second protective section can be oriented toward the first protective section Fold the centerline of the inspection channel 5.

In some embodiments, the safety inspection device further includes a locking structure for holding the two protective walls 3 on the side of the first cabin 2 together, or for protecting each protective wall 3 from the first The cabin 2 or the second cabin 4 mentioned later is kept together. The locking structure may use a buckle structure, a latch structure, a rope, a chain, and the like.

Further, as shown in FIGS. 2 and 4, in the extending direction of the inspection channel 5, the first protection section is disposed between the front and rear sides of the first cabin 2, and the second protection section is at least partially disposed at the first The second protection section after folding is located between the front and rear sides of the first cabin 2 and is beyond the front or rear sides of the cabin 2. The advantage of this arrangement is that the protective wall 3 can be fully folded into the space between the front and rear sides of the first cabin 2 after folding, so that the width of the entire safety inspection device in the front and rear directions is the same as that of the first cabin The width of the body 2 is approximately equal, and the width of the entire safety inspection device is minimized to facilitate transportation.

The present disclosure does not limit the folding manner of the protective wall 3, for example, the second protective section can be folded relative to the first protective section by translation, rotation, or repeated disassembly.

In some embodiments, twice the length of the second guard section is equal to or greater than the lateral distance between the two vertical arms of the boom 1.

When the length of the second guard section is twice the horizontal distance between the two vertical arms of the boom 1, the second guard sections on the left and right sides are folded inwards and then just face up, and will be checked like two doors The channel 5 is closed; when the length of the second protection section is twice greater than the lateral distance between the two vertical arms of the arm frame 1, the second protection sections on the left and right sides can be folded back and forth after being folded inward, so It can not only achieve the purpose of reducing the front and back width of the safety inspection device by folding, but also have a larger radiation protection range.

In some embodiments, in the extending direction of the inspection channel 5, the height of the cross-section of the protective wall 3 gradually decreases toward the direction away from the arm frame 1. This setting can minimize the volume of the protective wall 3 and reduce the overall weight of the safety inspection device on the premise of achieving full protection as much as possible.

In the above embodiments, the protective wall 3 may be a heavy metal shielding plate, such as a lead plate.

In some embodiments, the boom 1 is liftable relative to the first cabin 2. This arrangement can make the boom 1 have a higher height of the inspection channel 5 when in working state, and can inspect vehicles or containers with a higher height, so that the safety inspection device has a wider inspection range; The landing reduces the height of the entire safety inspection device, which meets the transportation requirements and at the same time improves the safety of transportation.

The arm frame 1 has a gate structure including a cross arm and two vertical arms respectively connected to the two sides of the cross arm. The two vertical arms are set in a multi-stage box structure nesting manner to achieve lifting; or using a rail structure to achieve lifting .

Specifically, as shown in FIGS. 1 and 3, the boom 1 is configured to be in a raised state in the working state of the safety inspection device; and in a landing state in the transportation state of the safety inspection device, and not to exceed the first cabin after landing The height of body 2. The advantage of this arrangement is that the height of the boom 1 cannot be higher than the height of the first cabin 2 during transportation, and the height of the entire safety inspection device is reduced as much as possible to facilitate transportation. Alternatively, after the boom 1 is lowered, it does not exceed the maximum limit height of road driving to ensure the safety of road driving.

In some embodiments, the height of the protective wall 3 is set to be less than or equal to the height of the first cabin 2. This arrangement can make the height of the entire safety inspection device approximately equal to the height of the first cabin 2 during transportation, reduce the height of the entire safety inspection device as much as possible, and avoid exceeding the height limitation of the vehicle during road transportation.

In some embodiments, the safety inspection device further includes a second cabin 4, and the second cabin 4 may adopt the same specifications as the first cabin 2, so as to ensure that the appearance of the entire safety inspection device is more beautiful. Of course, the second cabin 4 can also choose a different specification from the first cabin 2, in some embodiments, the size of the second cabin 4 is smaller than the size of the first cabin 2, in order to reduce the overall safety inspection device weight.

The first cabin 2 and the second cabin 4 can adopt a closed structure with an outer cover, which is beneficial to protect the internal structure, and can also prevent sand and dust from entering the cabin body, and the appearance is more beautiful; the first cabin 2 and the second The cabin 4 can also adopt a frame structure to reduce the overall weight.

The arm frame 1 has a gate structure. The arm frame 1 includes a cross arm and two vertical arms respectively connected to the two sides of the cross arm. The first cabin 2 and the second cabin 4 are respectively connected to the two vertical arms. Such setting can make the whole structure have better symmetry, and the structure arrangement is more reasonable.

In some embodiments, the first cabin 2 is configured to be fixedly arranged relative to the ground in the working state of the safety inspection device, and further the entire safety inspection device is fixedly disposed relative to the ground. In the working state, the safety inspection device remains stationary, and the object to be inspected moves relative to the safety inspection device to complete the scanning inspection. This arrangement can simplify the structure of the safety inspection device, and there is no need to install a walking device on the first cabin 2, which is also more convenient for transportation and installation of the safety inspection device and has a better effect.

In some embodiments, the width of the boom 1 in the direction perpendicular to the extending direction of the inspection channel 5 is adjustable. That is, the boom 1 can be folded inward in the lateral direction, and the boom 1 is configured such that the width of the boom 1 when the detection device is in the working state is larger than the width of the boom 1 when the detection device is in the transportation state. When the safety inspection device is in the working state, the width of the arm frame 1 is larger, which can improve the stability of the arm frame 1. When the safety inspection device is in the transportation state, the width of the arm frame 1 is reduced, which can reduce the overall volume of the safety inspection device. Reduced space occupation and easy transportation.

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 safety inspection device is switched between the working state and the transportation state, and is beneficial to reducing the debugging work of the safety inspection device after the transition.

In some embodiments, 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 working state, the second detection part is located on one side of the inspection channel, 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 working state and the transportation state, and can prevent the detector from affecting the switching between the working state and the transportation state of the safety inspection device without affecting the function of the detector.

For example, in the working state, the second detection part may be vertically located on one side of the inspection channel, 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 safety inspection device is fast between the working state and the transportation state, thereby shortening the time for the safety inspection device to switch, and is conducive to work In the state, the detector is in an accurate detection position.

The connection relationship between the second detection part and the first detection part or the arm frame 1 is not limited to articulation. For example, in the working state and the transportation state, the second detection part can also be detachably connected to the corresponding position.

The present disclosure does not limit the arrangement of the 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, a safety inspection device. The first cabin 2 and the second cabin 4 may each be provided with a ray source, a detector or the like.

Based on the security inspection device described above, the present disclosure also proposes a transition method based on the security inspection device.

In some embodiments, the transition method based on the above security inspection device includes:

When the boom 1 is connected to the first cabin 2 and the protective wall 3 is connected to the first cabin 2 or the boom 1, the boom 1, the first cabin 2 and the protective wall 3 are transported together to achieve the transition .

In some embodiments, before transportation, the method further includes:

Fold the protective wall 3 toward the center line of the inspection channel 5.

In some embodiments, before transportation, the method further includes:

Lower the boom 1 to a height not exceeding the height of the first cabin 2 or the maximum limit of road travel.

The positive technical effects possessed by the security inspection device in the above embodiments are also applicable to the transition method based on the security inspection device, and will not be repeated here.

The specific structure and transition process of an embodiment of the security inspection device and the transition method based on the security inspection device of the present disclosure will be described below with reference to FIGS. 1-4:

As shown in FIG. 1, the safety inspection device includes an arm frame 1, a first cabin 2, a protective wall 3 and a second cabin 4. The arm frame 1 includes a transverse arm and two vertical arms, and an inspection channel 5 is formed between the two vertical arms. The first cabin 2 and the second cabin 4 are connected to the vertical arms on both sides of the boom 1, and the boom 1 is disposed in the front and back of the first cabin 2 and the second cabin 4 in the extending direction of the inspection passage 5 Between the sides, the two protective walls 3 are connected to the first cabin 2 and the second cabin 4, respectively, and the height of the protective wall 3 is substantially equal to the heights of the first cabin 2 and the second cabin 4. In this figure, the safety inspection device is in a working state, and the boom 1 is in a raised state.

As shown in FIG. 2, the protective wall 3 includes four groups, which are respectively disposed on the front and rear sides of the first cabin 2 and the front and rear sides of the second cabin 4. There is a certain distance between the two sets of protective walls 3 disposed on the front and back sides of the first cabin 2 so that the radiation emitted by the radiation source can be irradiated onto the object to be tested smoothly. A certain distance may be provided between the two sets of protective walls 3 provided on the front and back sides of the second cabin 4 to protect the distance through the second cabin 4; or they may be connected to each other to form a continuous protective wall, To achieve better protection. In this figure, the safety inspection device is in a working state, and the protective wall 3 is in an unfolded state.

As shown in FIG. 3, the safety inspection device is in a transport state, and the boom 1 is lowered below the height of the first cabin 2 and the second cabin 4, so that the height of the entire safety inspection apparatus is the same as that of the first cabin 2 and the second cabin The height of the body 4 is approximately equal, while the protective wall 3 is folded inward toward the center line of the inspection passage 5.

As shown in FIG. 4, the safety inspection device is in a transport state, the protective wall 3 is folded inward, and the folded protective wall 3 is located between the front and rear sides of the first cabin 2 and the second cabin 4, so that the entire safety inspection device is in The width in the front-rear direction is approximately equal to the width of the first and

second compartments

2 and 4.

Before transportation, lower the boom 1 below the height of the first cabin 2 and the second cabin 4 so that the height of the entire safety inspection device is approximately equal to the height of the first cabin 2 and the second cabin 4; At the same time, the four groups of protective walls 3 are folded inward toward the center line of the inspection channel 5 respectively. After folding, the four groups of protective walls 3 are located between the front and rear sides of the first cabin 2 and the second cabin 4 to make the whole safe The width of the inspection device is approximately equal to the width of the first and

second compartments

2 and 4.

After the boom 1 is lowered and the protective wall 3 is folded, the safety inspection device is transferred and transported when the boom 1, the first cabin 2, the protective wall 3, and the second cabin 4 are all connected.

After arriving at the inspection site, remove the safety inspection device from the transportation equipment, the boom 1, the first cabin 2, the protective wall 3 and the second cabin 4 remain connected, there is no need to re-install and re-commission on site, nor It is necessary to temporarily build a protective wall and carry out civil work on the protective wall. Raise the boom 1 and unfold the protective wall 3 to put the safety inspection device into working condition.

Through the description of a plurality of embodiments of the safety inspection device of the present disclosure and the transition method based on the safety inspection device, it can be seen that the embodiments of the safety inspection device and the transition method based on the safety inspection device of the present disclosure have at least one of the following or Various advantages:

1. By setting the boom, the first cabin and the protective wall to be transported together in a connected state, it can effectively solve the problem that the inspection system in the related technology needs to be reinstalled and debugged at the inspection site, reducing installation time and labor input ;

2. The protective wall is transported together with the boom and the first cabin in a connected state, which can avoid rebuilding the protective wall and carrying out the civil work of the protective wall at the inspection site, so that the safety inspection device can be put into work as soon as possible and improve the transfer efficiency;

3. The protective wall can be folded, which is helpful to reduce the width of the entire safety inspection device;

4. The boom can be raised and lowered, which is helpful to reduce the height of the entire safety inspection device and facilitate the free switching of the safety inspection device between the transportation state and the working state.

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 them; although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: On the premise of the principles of the present disclosure, it is still possible to modify specific implementations of the present disclosure or equivalently replace some technical features. These modifications and equivalent replacements should be covered in the scope of the technical solutions claimed by the present disclosure.

Claims

A safety inspection device, including:

The boom (1) is provided with multiple detectors and is used to form an inspection channel (5);

The first cabin (2) is provided with a ray source and is connected to the boom (1); and

The protective wall (3) is connected to the first cabin (2) or the arm frame (1), and is used for radiation protection of the object to be protected;

Wherein, the boom (1), the first cabin (2) and the protective wall (3) are arranged to be transported together in a connected state.
The safety inspection device according to claim 1, wherein in the extending direction of the inspection passage (5), the relative position between the arm bracket (1) and the first cabin (2) is configured as The transportation state and working state of the safety inspection device remain unchanged.
The safety inspection device according to claim 1, wherein the protective wall (3) can be folded toward the center line of the inspection channel (5) to shorten the protective wall (3) at the inspection channel during transportation (5) Length in the extending direction.
The security inspection device according to claim 1, wherein the protective wall (3) includes:

First protection section;

The second protection section; and

Connector

Wherein, the first protection section and the second protection section are movably connected by the connecting member, and the second protection section can face the inspection channel (5) with respect to the first protection section The centerline is folded.
The safety inspection device according to claim 4, wherein in the extending direction of the inspection channel (5), the first protection section is provided between the front and rear sides of the first cabin (2), The second protection section is at least partially disposed outside the front or rear side of the first cabin (2), and the folded second protection section is located in front and back of the first cabin (2) Between the sides.
The safety inspection device according to claim 1, wherein the height of the protective wall (3) is set to be less than or equal to the height of the first cabin (2).
The safety inspection device according to claim 1, wherein in the extending direction of the inspection channel (5), the height of the cross-section of the protective wall (3) is gradually away from the arm (1) Decrease.
The safety inspection device according to claim 1, wherein the boom (1) is liftable relative to the first cabin (2).
The safety inspection device according to claim 1, wherein the boom (1) is configured to be in a raised state in the working state of the safety inspection device; and in a landing state in the transportation state of the safety inspection device, And after landing, the height of the first cabin (2) or the maximum limit of road travel is not exceeded.
The safety inspection device according to claim 1, wherein the safety inspection device further comprises a second cabin (4), and the arm frame (1) has a gate structure including a transverse arm and two arms respectively connected to the transverse arm Two vertical arms on the side, the first cabin (2) and the second cabin (4) are respectively connected with the two vertical arms.
The safety inspection device according to claim 1, wherein the first cabin (2) is configured to be fixedly arranged relative to the ground in the working state of the safety inspection device.
The safety inspection device according to claim 1, wherein the width of the boom (1) in a direction perpendicular to the extending direction of the inspection channel (5) is adjustable.
A transition method based on the safety inspection device according to any one of claims 1 to 12, comprising:

In a state where the boom (1) is connected to the first cabin (2), and the protective wall (3) is connected to the first cabin (2) or the boom (1) , Transport the boom (1), the first cabin (2) and the protective wall (3) together to achieve the transition.
The transition method according to claim 13, wherein before transportation, the method further comprises:

Fold the protective wall (3) toward the center line of the inspection channel (5).
The transition method according to claim 14, wherein before transportation, the method further comprises:

Lower the boom (1) to a level that does not exceed the height of the first cabin (2) or the maximum limit of road travel.