Nuctech Company Limited

Tsinghua University

Wanquan Shen

Shangmin Sun

Jianmin Li

Jianjun Su

Nan Jiang

Bin Hu

Yucheng Wu

Guang Yang

Ning Li

Zhizhong Liang

Zhiqiang Chen

Kejun Kang

Haifeng Hu

Hua Peng

Quanwei Song

Zhongrong Yang

Jianxin Wang

Rongxuan Liu

Hongliang Yang

Yinong Liu

Qitian Miao

Wenhuan Gao

Jiantao Wang

Yanjun Han

Sheng Tang

Zhenbin Guo

Weirong Huang

Zhengyu Bai

The present invention relates to a trailer system, and particularly to a self-driving trailer system for a radiation imaging inspection system and a method for inspecting a vehicle by radiation imaging of a vehicle through the trailer system. The self-driving trailer system comprises two trailers symmetrical in structure. Each of the trailers comprises a driving device, running wheels, a trailer body, a carrying device, a lift cylinder, a balance wheel, and two pairs of guide wheels. The driving device, the running wheels, and the balance wheel are coupled with the trailer body. The carrying device is coupled with the trailer body through the lift cylinder. A front carrying arm and a rear carrying arm can clamp front wheels of a vehicle under inspection, and move upwards and downwards by the lift cylinder. The trailer system according to the present invention is smooth and reliable in operation and simple in structure, and is applicable to different diameters of wheels of container lorries under inspection and is convenient in operation.

Trailer system and method for inspecting vehicle by radiation imaging of vehicle through trailer system

The present invention discloses a pulling device for a container inspection system including a pulling vehicle () arranged inside an inspection passage, a winch () and wire tension mechanisms ('). Front and rear ends of the pulling vehicle are connected to a wire rope so as to drive the pulling vehicle to move back and forth inside the inspection passage. The wire rope connected to front and rear ends of the pulling vehicle is wound around a wire tension mechanism arranged at front and rear ends of the inspection passage and is turned around by a swerving pulley () which is positioned at the same horizontal plane as that of the wire rope, the pulling vehicle, and the wire tension mechanisms, then the wire rope passes through the vertical pulley block, and finally it is connected to a single winding drum () of the winch () and wound around the single winding drum () respectively. Compared with the prior arts, the present invention is advantageous in reduction in equipment investment and decrease in area occupied by the pulling device. Further, the inspection operation can be carried out more reliably and safely.

Pulling device for container inspection system

A containers/vehicles inspection system with adjustable radiation X-ray angle relates to the technical field of radiation inspection. The present invention comprises a detector arm rack equipped with detectors, a second collimator, a pulling device, and an accelerator rack with the accelerator. X-ray produced by the accelerator is right opposite to the calibrator, the first collimator and the second collimator all of which are arranged in order, wherein, said accelerator rack is further composed of a horizontal regulation mechanism for moving the base forward and afterward horizontally, a vertical regulation mechanism for moving the bending framework up and down vertically, a rotary regulation mechanism for rotating the cantilever, a pitching regulation mechanism for driving the accelerator to make pinching movement, as well as a framework formed by a base, a vertical arm, a bending framework and a cantilever. Compared with the prior arts, the present invention is advantageous in reasonable structural design, convenient use and high imaging quality, especially satisfactory effect of focused inspection to some suspicious areas. So it is the necessary equipment for inspecting the Customs goods.

Containers/vehicle inspection system with adjustable radiation x-ray angle

The present invention discloses a reversible plate positioning device for a stationary radiation imaging trailer system, comprising a left platform (-) and a right platform (-) that can be connected with a trailing part () of a trailer frame and ground locking part (), the left platform (-) and right platform (-) provided with slopes () for the uploading of a vehicle to be detected respectively at the front ends and with positioning recesses () at the middle of an upper surface, each positioning recess () being provided with a wheel-locking device (), wherein, each wheel-locking device () comprises of a pivotable crank plate () that is hinged to the positioning recess () and can rotates about the pivot axis thereof, a chain () connected with the crank plate (), a pull-rod () connected with the chain (), and a fixing sleeve () corresponding to the pull-rod (), in which a spring () is provided in the fixing sleeve (), and when the vehicle to be detected is located in the positioning recesses (), each crank plate () rotates around the pivot axis thereof under the elastic force of the spring () so that the crank plate () is tilted at the front of each positioning recesses (), and thus the wheels are locked in the positioning recesses (), a carrier rod () biasing the spring () is respectively provided at the end of each fixing sleeves (), when the trailer is arrived, the carrier rods () bias the springs () under external force, so that each crank plates () slacks under the function of the pull-rod (). By the aforementioned device, the vehicle to be detected can be stably driven out of the trailer platforms, avoiding the impact to the vehicle to be detected and the trailer during downloading.

Reversible plate positioning device for stationary radiation imaging trailer system

A combined mobile container inspection system, comprising: a radiation source; a chassis; a rotatable deck provided at an end of the upper surface of said chassis and rotatable with respect to said chassis, provided with a parallelogram bracket formed by a hingedly-connected four-bar linkage mechanism, wherein the cross link of the parallelogram bracket extends to form a horizontal cross arm with detectors, the other end of said horizontal cross arm is connected with a vertical upright arm, which is vertical or parallel to said horizontal cross arm; and a sliding deck provided at the rear end of the rotatable deck and movable upwardly and downwardly, said sliding deck is provided, in turn, with the radiation source, the X-ray therefrom is always right in the face of the detectors provided in the horizontal cross arm and vertical upright arm, calibrator and collimator.

Combined mobile container inspection system with low target

A train inspection system by imaging through radiation, having a scanning arm positioned away from the track and supported on a construction base, and vibration damping elements positioned between the scanning arm and the construction base. The system includes a detector bracket with detector arrays mounted thereon, a radiation source, a calibration device, a front collimator, and a rear collimator. The sector-shaped x-rays emitted from the radiation source penetrate through the calibration device, the front collimator, the rear collimator and the train to be inspected sequentially so as to be received by the detector arrays provided on the detector bracket.

Scanning arm and train inspection system by imaging through radiation having the scanning arm

A trailer system for radiation imaging, comprising a trailer including a frame, a plurality of guide wheels and connecting hooks, and anchoring devices, the frame comprises an intermediate section in the form of a H-shaped frame beam, a left frame bed and a right frame bed are connected to hinge shafts provided on four corner portions of the H-shaped frame beam, a positioning recess is provided centrally in an upper surface of each left and right frame beds, a wheel-catching means is provided at a rear end of each positioning recess, an upslope and a downslope daises are provided on a front end and a rear end of each of the left and the right frame beds, a support plate is provided at an outside end of each of the left and right frame beds, and a striking block is provided centrally at an outside of each support plate. The present invention requires low installation accuracy of the rails, and employs simultaneously moveable upslope and downslope daises convenient for mounting and using, thus increasing reliability, stability and practicability of the trailer.

Trailer system for radiation imaging

A trailer of an automatically scanning-type radiation inspecting system used for large-sized object, comprising a trailer body provided with a bevel portion at a tail end of a top surface thereof and positioning recesses adaptive to lower portions of front wheels of a vehicle carrying objects to be inspected respectively, a plurality of pairs of guide wheels mounted to a bottom surface of the trailer body and can be supported and run on rails, connection rods provided at front and rear ends of the bottom surface of the trailer body and used for connecting to wire ropes of winches respectively, anchoring hooks provided at front and rear ends of the bottom surface of the trailer body and used for engaging with wedges arranged on the ground, and holding means provided at front and back sides of the positioning recesses and used for holding the front wheels of the vehicle in the positioning recesses during movement of the trailer. During operation of the trailer of present invention, the trailer pulls the vehicle carrying objects to be inspected to pass through the inspection passage smoothly while the front wheels of the vehicle are held in the positioning recesses on the trailer and rear wheels thereof roll over the ground. The trailer-conveying apparatus formed by the trailer of the present invention and winches occupies less land, being low in cost, simple in structure, reasonable in design, advantageous to shield the radiation, and easy to be maintained.

Trailer of an automatically scanning-type radiation inspection system for large-sized object

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Beijing, China

Wanquan Shen