HK1119770B - Mobile vehicle inspection system - Google Patents

Description

Mobile vehicle inspection system

Technical Field

The invention relates to the technical field of radiation scanning imaging, in particular to a mobile inspection system for small vehicle inspection.

Background

Vehicle mounted mobile container/vehicle inspection systems are essential inspection equipment for customs, civil aviation airports and railway systems. The method utilizes the principle of radiation imaging to obtain a perspective image of an object in a container or a vehicle by scanning the container/vehicle to be inspected under the condition of not opening the container. Meanwhile, the images are analyzed, and suspicious articles hidden in the box or the vehicle can be found.

The onboard mobile container/vehicle inspection system is integrated into a chassis, commonly referred to as a scanning vehicle. In the prior art, such as the vehicle-mounted mobile container/vehicle inspection SYSTEM (HCV mobile SYSTEM) manufactured by hamman, germany, the vertical detector beam is in a folded structure, and a counterweight is added on the other side of the horizontal detector beam to realize the balance of the scanning vehicle.

The vehicle inspection system is complex in structure for realizing balance, the balance of the scanning vehicle in the width direction is guaranteed when the detector beam extends out of the scanning vehicle (in an inspection scanning state), and the balance of the scanning vehicle is guaranteed when the detector beam retracts into the scanning vehicle, so that the weight of the finished vehicle after balancing is large, the weight of the finished vehicle is over 20 tons, the adopted chassis is a three-axis or four-axis chassis, and the manufacturing cost is high.

Meanwhile, the folding of the vertical detector beam of the vehicle inspection system also makes the structure of the whole system tend to be complex. The scanning height of the scanning vehicle is over 400mm, and the scanning vehicle mainly aims at container trucks and cannot be used for scanning small vehicles with lower chassis.

In order to reduce the scanning height of the scanning vehicle and expand the application range of the scanning vehicle, chinese patent 200320126640.4 of the present applicant discloses a combined mobile low target point container inspection device, which can expand the scanning range and reduce the scanning target point. However, the vertical detector beam of the scanning vehicle is also foldable, and the radiation source rotates along with the beam to realize the balance of the scanning vehicle in the width direction, so the scanning vehicle has the defects of complex structure and higher equipment cost.

Disclosure of Invention

In view of the above technical problems, the present invention aims to provide a vehicle-mounted mobile inspection system for inspecting small vehicles, also called a scanning vehicle. The vertical detector beam does not need to be folded during driving or inspection, and has the characteristics of simple structure, convenience in processing and debugging, wide scanning range, light vehicle body weight and low manufacturing cost.

In order to achieve the above object, according to one aspect of the present invention, there is provided a mobile vehicle inspection system including:

a mobile device;

a driving device for driving the moving device to move during the scanning inspection;

the radiation source is arranged on the mobile device and used for emitting rays;

a turntable pivotably disposed on the moving device;

a column, a lower end of which is mounted on the turntable so as to be pivotable with the turntable;

the horizontal detector beam is provided with a first detector array, and one end of the horizontal detector beam is connected with the top end of the upright post;

a vertical detector beam provided with a second detector array, the upper end of the vertical detector beam being connected to the other end of the transverse detector beam and extending downwardly from the transverse detector beam, whereby the upright, the transverse detector beam and the vertical detector beam form a portal frame,

wherein the horizontal and vertical detector beams are swingable between a retracted position retracted on the moving means and an extended position extended out of the moving means by pivoting of the upright, wherein in the extended position, the radiation source emits radiation directed toward the first and second detector arrays for inspecting a vehicle under inspection passing through the portal frame.

Preferably, the mobile device comprises: a chassis frame; and a wheel mounted to the bottom of the chassis frame, wherein the radiation source and the turntable are disposed above the chassis frame, and the driving device drives the wheel to rotate during inspection.

More preferably, the wheels include a pair of front wheels and a pair of rear wheels.

Further, the driving device drives the rear wheel to rotate during the inspection.

According to a preferred embodiment of the present invention, the mobile vehicle inspection system further comprises a power head integrally connected with the chassis frame for driving the movement of a mobile device.

Optionally, the mobile vehicle inspection system further comprises auxiliary support means provided at one side of the chassis frame bottom, the horizontal detector beam and the vertical detector beam for supporting the chassis frame in an auxiliary manner when the horizontal detector beam and the vertical detector beam are in the extended positions so as to keep the chassis frame balanced.

Further, the auxiliary supporting device includes: a connecting seat mounted on the chassis frame; a roller; one end of the supporting arm is hinged with the connecting seat, and the other end of the supporting arm is connected with the roller through a bearing; and a first hydraulic cylinder, one end of which is hinged with the chassis frame and the other end of which is hinged with the middle part of the supporting arm so as to drive the supporting arm to swing, so that the roller contacts or leaves the ground.

Further, the mobile vehicle inspection system further includes a ramp device for elevating a height of the inspected vehicle from the ground and including a first ramp section and a second ramp section,

wherein each of the first and second ramp sections respectively comprises:

a middle horizontal segment;

two transition sections detachably connected to two ends of the middle horizontal section respectively; and

two oblique sections detachably connected to the two transition sections, respectively.

More specifically, the ramp device further includes a substantially rectangular parallelepiped connecting frame, the intermediate sections of the first and second ramp sections are respectively hinged to opposite sides of the connecting frame so that when the ramp device is in a disassembled and folded state, the intermediate sections of the first and second ramp sections can be flipped over onto the top surface of the connecting frame, the disassembled transition sections can be stacked on the intermediate sections, and the disassembled inclined sections can be placed inside the connecting frame.

The mobile vehicle inspection system according to the preferred embodiment of the present invention further includes a ramp support frame provided on the chassis frame, and a ramp lifting device for lifting the ramp device in a disassembled and folded state onto or from the ramp support frame onto the ground.

Furthermore, the slope platform hoisting device comprises an electric hoist.

In a preferred form of the invention, the mobile vehicle inspection system further comprises a second hydraulic cylinder having one end fixed to the chassis frame and the other end rotatably connected to the turntable for driving the turntable to pivot.

Further, the mobile vehicle inspection system further comprises: a generator compartment disposed on the chassis frame; and a generator disposed within the generator nacelle.

Preferably, the mobile vehicle inspection system further comprises a source water chiller for cooling the source.

According to the vehicle-mounted mobile vehicle inspection system of the present invention, it is possible to perform all-around scanning of an existing small vehicle, and to inspect each part of the small vehicle. The transverse and vertical detector beams are mutually perpendicular and are inverted L-shaped, and the vertical detector beam does not need to be folded, so that the detector beam is simple in structure and convenient to process and debug.

In addition, auxiliary supporting wheels are installed on the chassis frame on the extending side of the transverse and vertical detector beams to ensure the balance of the scanning vehicle after the detector beams extend out. The movable clamping system has the advantages of light overall structure, low manufacturing cost and good economic performance, and can be realized by adopting a light chassis with two shafts.

Drawings

These and/or other aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the preferred embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of a mobile vehicle inspection system according to an embodiment of the present invention;

FIG. 2 is a top view of a mobile vehicle inspection system in a scanning state according to an embodiment of the present invention;

FIG. 3 is a rear view of a mobile vehicle inspection system in a scanning state in accordance with an embodiment of the present invention;

FIG. 4 is a schematic structural diagram illustrating the operation of the auxiliary support wheels of the mobile vehicle inspection system according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating a folded structure of a folding ramp device of the mobile vehicle inspection system according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. The embodiments are described below in order to explain the present invention by referring to the figures.

Referring to fig. 1 to 4, a mobile vehicle inspection system, generally referred to as a scanning cart, according to an embodiment of the present invention includes a moving device including a chassis frame 10 and a pair of front wheels 27a and a pair of rear wheels 27b mounted at the bottom of the chassis frame 10.

A radiation source 23 is mounted on the chassis frame 10, the radiation source 23 being adapted to emit, for example, X-rays for scanning and inspecting the vehicle under inspection and its cargo thereon. The turntable 0 is pivotally mounted on a chassis frame 10, on which turntable 0a column 9 is mounted which can pivot therewith.

One end of the horizontal probe beam 7 is connected to and extends substantially horizontally from the upper end of the column 9, the upper end of the vertical probe beam 2 is connected to the other end of the horizontal probe beam 7, and the vertical probe beam 2 extends substantially vertically from the other end of the horizontal probe beam 7, so that the column 9, the horizontal probe beam 7, and the vertical probe beam 2 constitute a substantially door-shaped frame. The horizontal detector beam 7 and the vertical detector beam 2 are respectively provided with a detector array for receiving X-rays emitted from a radiation source 23, and the vehicle 22 to be inspected passes through the portal frame so as to be scanned and inspected by the X-rays emitted from the radiation source 23.

The mobile vehicle inspection system according to the embodiment of the present invention further includes a driving device 3 that drives the movement of the moving device during the scanning inspection. Specifically, the driving device 3 drives the rear wheel 27b only during the scanning inspection, alternatively, the front wheel 27a may be driven, or the front wheels 27a and 27b may be driven at the same time. While during non-inspection scanning of the vehicle under inspection, i.e. when the transverse probe beam 7 and the vertical probe beam 2 (portal frame) are retracted onto the chassis frame 10, the drive means 3 does not provide a driving force to the rear wheels 27b, so that the vehicle inspection system can be moved from one work site to another, for example under the drive of the locomotive 1 or a separate motor vehicle.

Since the column 9 is pivotable with the turntable 0, the horizontal detector beam 7 and the vertical detector beam 2 can swing about the column 9 between a retracted position (see fig. 1), in which the horizontal detector beam 7 and the vertical detector beam 2 (gate frame) are positioned on the chassis frame 10, and an extended position (see fig. 2 and 3), in which the horizontal detector beam 7 and the vertical detector beam 2 are positioned outside the chassis frame 10 so that the vehicle under examination can pass through the gate frame, and in which the X-rays emitted from the radiation source 23 are directed toward the detector arrays of the horizontal detector beam 7 and the vertical detector beam 2.

The chassis frame 10 may be a chassis frame of a general vehicle, and preferably, a power head 1 is integrally connected to the chassis frame 10 for moving the chassis frame 10 during non-inspection, and power of the power head 1 may be transmitted to the front wheels 27a and/or the rear wheels 27b through a power transmission device. Since the chassis frame of the general vehicle has a relatively narrow width, it is possible to provide an auxiliary chassis frame having a wider width on the chassis frame of the general vehicle to constitute the chassis frame 10 having a larger width, so that more devices constituting the scanning vehicle can be provided on the chassis frame 10.

It should be noted that the power head 1 and the driving device 3 do not provide driving force to the chassis frame 10 at the same time. For example, during a scanning inspection, the driving device 3 supplies power to the rear wheels 27b to drive the chassis frame 10 to move, and the power head 1 does not supply power to the front wheels 27a and/or the rear wheels 27 b. In contrast, during the non-scanning inspection, as described above, the driving device 3 does not supply driving force to the front wheels 27a and/or the rear wheels 27b, and the power head 1 supplies power to the front wheels 27a and/or the rear wheels 27b through the power transmission device, thereby driving the chassis frame 10 to move, which is the same as the driving of a general motor vehicle.

Preferably, the mobile vehicle inspection system according to the embodiment of the present invention includes an auxiliary support device 4 provided at the bottom of the chassis frame 10, the auxiliary support device 4 being located at one side of the portal frame for auxiliary support of the chassis frame 10 during inspection so as to maintain balance of the chassis frame. The auxiliary supporting means 4 includes a connecting socket 26 mounted to the chassis frame 10; a roller 21; a support arm 25, one end of the support arm 25 is rotatably hinged with the connection seat 26, and the other end is connected with the roller 21 through a bearing (not shown); and a first hydraulic cylinder 24, one end of the first hydraulic cylinder 24 is rotatably hinged with the chassis frame 10, and the other end is rotatably hinged with the middle part of the support arm 25, so as to drive the support arm 25 to swing, thereby enabling the roller 21 to contact the ground during the inspection scanning and leave the ground during the non-inspection scanning and without the radiation source needing to rotate.

Further, the mobile vehicle inspection system according to the embodiment of the present invention includes a ramp device 20 for elevating the height of the inspected vehicle 22 from the ground. For example, if the vehicle 22 to be inspected is a small vehicle, the X-rays emitted from the radiation source 23 cannot scan the lower portion of the vehicle 22 to be inspected while passing through the portal frame, and for this reason, the height of the vehicle 22 to be inspected needs to be increased by the ramp device 20, as shown in fig. 3.

The ramp device 20 comprises a first ramp section 20a and a second ramp section 20b, the first ramp section 20a comprising: the middle horizontal segment 20 a-1; two transition sections 20a-2, 20a-2 detachably connected to both ends of the middle horizontal section 20a-1, respectively; and two inclined sections 20a-3, 20a-3 detachably connected to the two transition sections 20a-2, respectively. Likewise, the second ramp section 20b includes: the middle horizontal segment 20 b-1; two transition sections 20b-2, 20b-2 detachably connected to both ends of the middle horizontal section 20b-1, respectively; and two inclined sections 20b-3, 20b-3 detachably connected to the two transition sections 20b-2, respectively. Further, the ramp 20 further comprises a connecting frame 20c having a substantially rectangular parallelepiped shape, the intermediate sections 20a-1, 20b-1 of the first and second ramp sections 20a, 20b are pivotally hinged to opposite sides of the connecting frame 20c, respectively, so that when the ramp 20 is in the disassembled and folded state, the intermediate sections 20a-1, 20b-1 of the first and second ramp sections 20a, 20b can be flipped over onto the top surface of the connecting frame 20c, and the disassembled transition sections 20a-2, 20a-2, 20b-2, 20b-2 are stacked on the intermediate sections 20a-1, 20b-1, respectively, and the disassembled inclined sections 20a-3, 20a-3, 20b-3, 20b-3 can be placed inside the connecting frame 20c, as shown in fig. 5.

The vehicle inspection system according to the embodiment of the present invention further includes a ramp support frame 13 provided on the chassis frame 10 and a ramp lifting device 5 for lifting the ramp device 20 in a disassembled and folded state onto the ramp support frame 13 or from the ramp support frame 13 onto the ground, by the ramp lifting device 5. Preferably, the ramp hoisting device 5 comprises an electric hoist.

In a further development of the embodiment according to the invention, the vehicle inspection system further comprises a second hydraulic cylinder 19, one end of the second hydraulic cylinder 19 being fixed to the chassis frame 10 and the other end being rotatably connected to the turntable 0 for driving the turntable 0 in rotation for rotating the portal frame formed by the uprights 9, the cross detector beam 7 and the vertical detector beam 2 between the retracted position and the extended position.

The vehicle inspection system according to the embodiment of the present invention further includes a generator compartment 11 provided on the chassis frame, and a generator 12 and a generator control device (not shown) provided in the generator compartment 11, the generator 12 being used to supply power to the vehicle inspection system. Alternatively, an external power source may be utilized to provide power to the vehicle inspection system. More preferably, the mobile vehicle inspection system further comprises a source water chiller 16 for cooling the source of radiation 23.

As described above, during non-scanning inspection, that is, when the horizontal detector beam 7 and the vertical detector beam 2 (gate frame) are retracted onto the chassis frame 10, the chassis frame 10 (moving device) of the vehicle inspection system may be driven by the head 1 integrally connected to the chassis frame 10 or may be towed by a separate motor vehicle (not shown).

In addition, the chassis frame 10 may be provided with other components of a vehicle inspection system. For example, the control compartment 8 is mounted in the middle of the chassis frame 10, and the equipment compartment 18 is mounted on one side of the rear of the chassis frame 10. The control cabin 8 comprises a scanning control module, a graph acquisition module, an operation inspection module and a hydraulic pump station 14. A control cabinet 15, an electronic cabinet 17 and a ray source water cooling unit 16 are arranged in the equipment cabin 18. An air conditioning unit 6 is mounted on top of the control cabin 8 for providing cooling and heating to the control cabin 8 and the equipment cabin 18. The turntable 0 may be disposed at one side of the equipment bay 18. The ramp support frame 13 and the ramp hoisting device 5 can be installed at the upper part of the generator cabin 11.

The operation of the mobile vehicle inspection system (scanning vehicle) according to the embodiment of the present invention is described below.

Referring to fig. 1, when the scanning vehicle is in a non-scanning inspection state, the horizontal detector beam 7 and the vertical detector beam 2 are retracted to be tightly attached to one side of the control cabin 8, and the roller 21 pulls the supporting arm 25 through the first hydraulic cylinder 24 to be away from the ground for a certain distance, so that the scanning vehicle can be ensured to normally run on a road under the driving of the power locomotive 1. The ramp device 20 is in a disassembled and folded state, as shown in fig. 5, and is fixed to the ramp support frame 13, thereby eliminating the need for another vehicle to carry the ramp device 20.

Referring to fig. 2 and 3, the scanning carriage according to the present invention is in a scanning inspection state, and the process of extending the horizontal detector beam 7 and the vertical detector beam 2 is as follows: after the scanning vehicle has been parked at the work site, the system operator energizes the scanning vehicle, starting the hydraulic pumping station 14 and the hydraulic system actuates the first hydraulic cylinder 24. The piston rod of the first hydraulic cylinder 24 is extended to push the support arm 25 to rotate the roller 21 in the counterclockwise direction in fig. 4 until the roller 21 contacts the ground, as shown in fig. 4. The hydraulic system actuates a second hydraulic cylinder 19, and the second hydraulic cylinder 19 drives the turntable 0 to rotate, so that the horizontal detector beam 7 and the vertical detector beam 2 (door frame) extend out of the chassis frame 10 and are substantially perpendicular to the longitudinal axis of the chassis frame 10.

Next, the operator lifts the ramp device 20 in the disassembled and folded state from the ramp support frame 13 to the ground by the ramp lifting device 5. The ramp platform assembly 20 is then assembled as shown in fig. 2 and 3. The inspected vehicle 22 is driven onto the assembled ramp device 20, and the driver leaves the scanning vehicle after getting off. The scanning vehicle moves forward by the driving of the driving device 3, and the X-rays emitted from the radiation source 23 pass through and scan the vehicle 22 to be inspected which is stopped on the ramp device 20, thereby obtaining an image of the cargo on the vehicle 22 to be inspected. As for the acquisition of an image and the imaging control, the same as in the prior art, a detailed description is omitted here.

Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims (14)

1. A mobile vehicle inspection system comprising:

a mobile device;

a driving device for driving the moving device to move during the scanning inspection;

the radiation source is arranged on the mobile device and used for emitting rays;

a turntable pivotably disposed on the moving device;

a column, a lower end of which is mounted on the turntable so as to be pivotable with the turntable;

the horizontal detector beam is provided with a first detector array, and one end of the horizontal detector beam is connected with the top end of the upright post;

a vertical detector beam provided with a second detector array, the upper end of the vertical detector beam being connected to the other end of the transverse detector beam and extending downwardly from the transverse detector beam, whereby the upright, the transverse detector beam and the vertical detector beam form a portal frame,

wherein the horizontal and vertical detector beams are swingable by pivoting of the upright between a retracted position retracted on the moving means and an extended position extended out of the moving means, wherein in the extended position, the radiation source emits radiation directed toward the first and second detector arrays to inspect the inspected vehicle passing through the portal frame, and

wherein the portal frame formed by the horizontal and vertical detector beams maintains the same shape in the extended and retracted positions.

2. The mobile vehicle inspection system of claim 1, wherein the mobile device comprises:

a chassis frame; and

wheels mounted to the bottom of the chassis frame,

wherein the radiation source and the turntable are arranged above the chassis frame and the driving device drives the wheels to rotate during the inspection.

3. The mobile vehicle inspection system of claim 2, wherein the wheels include a pair of front wheels and a pair of rear wheels.

4. The mobile vehicle inspection system of claim 3, wherein the drive arrangement drives the rear wheels in rotation during inspection.

5. The mobile vehicle inspection system of claim 2, further comprising a power head integrally connected to the chassis frame for driving movement of a mobile device.

6. The mobile vehicle inspection system of claim 5, further comprising auxiliary support means provided at one side of the chassis frame bottom, the cross detector beam and the vertical detector beam for assisting in supporting the chassis frame when the cross detector beam and the vertical detector beam are in the extended positions so as to maintain balance of the chassis frame.

7. The mobile vehicle inspection system of claim 6, wherein the auxiliary support device comprises:

a connecting seat mounted on the chassis frame;

a roller;

one end of the supporting arm is hinged with the connecting seat, and the other end of the supporting arm is connected with the roller through a bearing;

and a first hydraulic cylinder, one end of which is hinged with the chassis frame and the other end of which is hinged with the middle part of the supporting arm so as to drive the supporting arm to swing, so that the roller contacts or leaves the ground.

8. The mobile vehicle inspection system of claim 7, further comprising ramp means for elevating the height of the inspected vehicle from the ground and comprising a first ramp section and a second ramp section,

wherein each of the first and second ramp sections respectively comprises:

a middle horizontal segment;

two transition sections detachably connected to two ends of the middle horizontal section respectively; and

two oblique sections detachably connected to the two transition sections, respectively.

9. The mobile vehicle inspection system of claim 8, the ramp device further comprising a generally rectangular parallelepiped connecting frame, the intermediate sections of the first and second ramp sections being hinged to opposite sides of the connecting frame, respectively, such that when the ramp device is in the disassembled and collapsed positions, the intermediate sections of the first and second ramp sections can be flipped over onto the top surface of the connecting frame, the disassembled transition sections can be stacked on the intermediate sections, and the disassembled angled sections can be placed inside the connecting frame.

10. The mobile vehicle inspection system of claim 9, further comprising ramp support frames disposed on the chassis frame and ramp lifting devices for lifting the ramp device in an unfolded and folded state onto or from the ramp support frame onto the ground.

11. The mobile vehicle inspection system of claim 10, the ramp lifting device comprising an electric hoist.

12. A mobile vehicle inspection system according to claim 1 or claim 2, further comprising a second hydraulic cylinder having one end fixed to the chassis frame and the other end rotatably connected to the turntable for driving the turntable to pivot.

13. A mobile vehicle inspection system according to claim 1 or 2, further comprising:

a generator compartment disposed on the chassis frame; and

a generator disposed within the generator nacelle.

14. The mobile vehicle inspection system of claim 13, further comprising a source water chiller for cooling the source.