CN209765072U

CN209765072U - Article detection device

Info

Publication number: CN209765072U
Application number: CN201920013443.2U
Authority: CN
Inventors: 李荐民; 张丽; 李元景; 陈志强; 史俊平; 王�锋; 何远; 高克金; 韩文学; 冯顺昌; 孙尚民
Original assignee: Tongfang Video Technology (beijing) Co Ltd; Tsinghua University; Nuctech Co Ltd
Current assignee: Tongfang Video Technology (beijing) Co Ltd; Tsinghua University; Nuctech Co Ltd
Priority date: 2019-01-04
Filing date: 2019-01-04
Publication date: 2019-12-10
Anticipated expiration: 2029-01-04

Abstract

The utility model discloses an article detection device, include: the portal frame comprises a cross arm positioned at the top and two vertical arms positioned at two sides of the cross arm and connected with the cross arm, and a detection channel is formed by a region surrounded by the cross arm and the two vertical arms; the rotary supporting devices are respectively connected to the upper ends of the two vertical arms, are used for supporting the cross arm and can enable the two vertical arms to respectively rotate around the vertical axes of the two vertical arms through the self-rotation movement; and an article detection assembly based on radiation imaging, at least partially disposed at the portal frame, for detecting an article passing through the portal frame; the cross arm comprises a telescopic device, and the length of the cross arm can be changed through self telescopic motion. The embodiment of the utility model provides a pass through the concertina movement of telescoping device changes the length of xarm to promote and wait to detect the detection efficiency of article to the difference.

Description

Article detection device

Technical Field

The utility model relates to a safety inspection field especially relates to an article detection device.

Background

At present, the detection of cargos, combined cargos, vehicle-mounted cargos or vehicles is mostly finished by a portal detection system. The detection of the vehicle-mounted cargo or vehicle capable of moving autonomously can be finished by a fixed portal detection system; for the goods which can not move independently or the combined goods, moving facilities such as a conveyor belt and the like are required to be additionally arranged on the portal detection system.

however, since the types of the goods are various, especially for the detection of the combined goods, the vehicle-mounted goods or the vehicles, since the shapes and the sizes of the objects to be detected are difficult to unify, it is necessary to provide detection devices suitable for the objects to be detected in different shapes and sizes in the detection area, and classify the objects to be detected according to the different shapes and sizes so as to pass through the detection devices corresponding to the shapes and the sizes of the objects, which results in low detection efficiency.

further, for partially assembled cargo, vehicle-mounted cargo and vehicles, the dimension in the width direction is much smaller than the dimension in the length direction. When such a load passes through the detection device in the width direction, the detection device is required to have low feasibility. However, in the detection area, the goods are often stacked and the vehicle is parked relatively closely, the angle of the combined goods, the vehicle-mounted goods and the vehicle is adjusted, and the operation difficulty of passing through the detection device in the width direction is often high, which also results in the low detection efficiency.

SUMMERY OF THE UTILITY MODEL

At least one object of the utility model is to provide an article detection device can promote the detection efficiency of article. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

The utility model provides a pair of article detection device, include: the portal frame comprises a cross arm positioned at the top and two vertical arms positioned at two sides of the cross arm and connected with the cross arm, and a detection channel is formed by a region surrounded by the cross arm and the two vertical arms; the rotary supporting devices are respectively connected to the upper ends of the two vertical arms, are used for supporting the cross arm and can enable the two vertical arms to respectively rotate around the vertical axes of the two vertical arms through the self-rotation movement; and an article detection assembly based on radiation imaging, at least partially disposed at the portal frame, for detecting an article passing through the portal frame; the cross arm comprises a telescopic device, and the length of the cross arm can be changed through self telescopic motion.

as the utility model discloses the optimization of any technical scheme or any post-optimization technical scheme that the foregoing or following provided, the telescoping device includes the flexible hydro-cylinder of at least one-level.

As any technical solution or any optimized technical solution provided in the foregoing or following of the present invention is optimized, the cross arm includes: the two ends of the telescopic cross arm are respectively connected to the two vertical arms and can be extended or shortened to change the length of the cross arm; and one end of the fixed cross arm is connected to at least one of the two vertical arms and is used for supporting the telescopic cross arm.

As any technical solution or any optimized technical solution provided in the foregoing or following of the present invention is optimized, the article detecting device includes: and the lifting device can enable the two vertical arms to do ascending or descending motion through the self lifting motion.

as any technical solution or any optimized technical solution provided in the foregoing or following of the present invention is optimized, the article detecting device includes: and the wheel type walking devices are respectively arranged at the lower ends of the two vertical arms and can enable the article detection device to walk and turn relative to the ground through self walking motion.

as any technical solution or any optimized technical solution provided in the foregoing or following of the present invention is optimized, the article detecting device includes: the ray cabin body is arranged on one of the two vertical arms and comprises a ray source which can emit a detection ray to scan the articles passing through the portal frame; the detector is arranged on at least one of the two vertical arms and/or the transverse arm and can detect a transmission signal or a scattering signal of the detected ray on the article so as to perform scanning imaging; and a protective wall disposed on the other of the two vertical arms.

As any technical solution or any optimized technical solution provided in the foregoing or following of the present invention is optimized, the cross arm includes: the two ends of the telescopic cross arm are respectively connected to the two vertical arms, and the telescopic cross arm can be extended or shortened to change the length of the cross arm; and a fixed cross arm, one end of which is connected to at least one of the two vertical arms and is used for supporting the vertical arm; wherein at least part of the detector is arranged on the telescopic cross arm.

as any technical solution or any optimized technical solution provided in the foregoing or following of the present invention is optimized, the article detecting device includes: the lifting device can enable the two vertical arms to do ascending or descending motion through the self lifting motion; and the wheel type walking devices are respectively arranged at the lower ends of the two vertical arms and can enable the article detection device to walk and turn relative to the ground through self walking motion.

As any technical solution or any optimized technical solution provided in the foregoing or following of the present invention is optimized, the article detecting device includes: and the controller is used for controlling the lifting motion of the lifting device, the telescopic motion of the telescopic device, the rotary motion of the rotary supporting device and the walking motion of the wheel type walking device.

as an optimization of any of the solutions or any post-optimization solutions provided in the foregoing or following of the present invention, the controller is configured to: and controlling the telescopic device to perform telescopic motion of the cross arm and/or the lifting device to perform lifting motion of the portal frame so as to change the size of the detection passage.

as an optimization of any of the solutions or any post-optimization solutions provided in the foregoing or following of the present invention, the controller is configured to: and controlling the rotary supporting device to rotate, so that at least one of the two vertical arms rotates by a preset angle around the vertical axis of the vertical arm, and the self-rotation motion of the vertical arms is realized.

As an optimization of any one of the technical solutions or any one of the technical solutions provided in the foregoing or following paragraphs of the present invention, the two vertical arms include a first vertical arm and a second vertical arm, the slewing support device includes a first slewing support device corresponding to the first vertical arm and a second slewing support device corresponding to the second vertical arm, and the wheeled walking device includes a first wheeled walking device corresponding to the first vertical arm and a second wheeled walking device corresponding to the second vertical arm; the controller is configured to: and controlling the first wheel type walking device to be static relative to the ground, and controlling the first rotary supporting device to rotate so as to enable the second wheel type walking device to walk and steer relative to the ground, so that the cross arm rotates relative to the first vertical arm by a preset angle, and the steering movement of the detection channel is realized.

As an optimization of any of the solutions or any post-optimization solutions provided in the foregoing or following of the present invention, the controller is further configured to: and controlling the second rotary supporting device to rotate, so that the second vertical arm rotates by a preset angle around the vertical axis of the second vertical arm, and the vertical arm performs autorotation motion when the detection channel performs steering motion.

As an optimization of any one of the technical solutions or any one of the technical solutions provided in the foregoing or following paragraphs of the present invention, the two vertical arms include a first vertical arm and a second vertical arm, the slewing support device includes a first slewing support device corresponding to the first vertical arm and a second slewing support device corresponding to the second vertical arm, and the wheeled walking device includes a first wheeled walking device corresponding to the first vertical arm and a second wheeled walking device corresponding to the second vertical arm; the controller is configured to: controlling the first wheeled walking device to be static relative to the ground and controlling the first rotary supporting device to rotate so as to enable the second wheeled walking device to walk and steer relative to the ground, and therefore the cross arm rotates relative to the first vertical arm by a preset angle; and further controlling the second wheeled walking device to be static relative to the ground and controlling the second rotary supporting device to rotate so as to enable the first wheeled walking device to walk and steer relative to the ground, and further enabling the cross arm to rotate relative to the second vertical arm by a preset angle; so that the portal frame makes a striding type walking motion.

as an optimization of any of the solutions or any post-optimization solutions provided in the foregoing or following of the present invention, the controller is further configured to: the second vertical arm rotates around the first vertical arm, and the first vertical arm rotates around the second vertical arm, and the angle of the second vertical arm is preset to be 180 degrees, so that when the portal frame does striding type walking motion, the detection channel can sequentially face to the to-be-detected objects which are arranged side by side.

as any technical solution or any optimized technical solution provided in the foregoing or following of the present invention is optimized, the article detecting device includes: the remote control command transmission assembly is arranged on the portal frame and electrically connected with the controller, and the remote control can be in remote communication with the remote control command transmission assembly so that an operator can remotely control the lifting device, the telescopic device, the rotary supporting device and the wheel type walking device.

Based on the technical scheme, the embodiment of the utility model provides a pass through telescoping device's concertina movement changes the length of xarm to the size change of article is detected to the foundation the size of test passage, in order to promote the utility model provides an article detection device is to the detection efficiency of different goods, combination formula goods, vehicular goods or vehicle.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

Fig. 1 is a schematic front view angle structure diagram of some embodiments of an article detection device according to an embodiment of the present invention;

Fig. 2 is a schematic front view angle structure diagram of another embodiment of the article detection apparatus according to the embodiment of the present invention;

Fig. 3 is a schematic front view angle structure diagram of another embodiment of the article detection device according to the embodiment of the present invention;

Fig. 4 is a schematic front view angle structure diagram of still another embodiment of the article detection device according to the embodiment of the present invention;

Fig. 5 is a schematic top view angle structure diagram of some embodiments of an article detection device according to an embodiment of the present invention;

Fig. 6 is a schematic view of an article detection apparatus according to an embodiment of the present invention illustrating a top-down angle of rotation of a vertical arm;

Fig. 7 is a schematic view of an article detection device according to an embodiment of the present invention, illustrating a downward angle detection channel for turning;

Fig. 8 is a schematic view of an article detection device according to an embodiment of the present invention, in which a vertical arm performs a rotation motion while a downward angle detection passage performs a turning motion;

Fig. 9 is a schematic diagram of the movement of the article detection apparatus according to some embodiments of the present invention when the portal frame is walking in a step manner;

reference numerals: 1. the device comprises a cross arm, 11, a telescopic device, 12, a fixed cross arm, 13, a telescopic cross arm, 2, a vertical arm, 2(a) a first vertical arm, 2(b) a second vertical arm, 21, a lifting device, 22, a rotary supporting device, 23, a wheel type walking device, 3, an article detection assembly, 31, a ray cabin, 32, a ray source, 33, a detector, 34 and a protective wall.

Detailed Description

The contents of the present invention and the differences between the present invention and the prior art can be understood with reference to the drawings and the text. The invention will be described in further detail below (including the preferred embodiments) with reference to the drawings and illustrative examples of some alternative embodiments of the invention.

it should be noted that: any technical features and any technical solutions in this embodiment are one or more of various optional technical features or optional technical solutions, and for the sake of brevity, this document cannot exhaust all the alternative technical features and alternative technical solutions of the present invention, and it is not convenient for each embodiment of the technical features to emphasize that it is one of various optional embodiments, so those skilled in the art should know that: can replace any technical means or combine two or more technical means or technical characteristics of the utility model provides an arbitrary or more technical means or technical characteristics mutually and obtain new technical scheme.

Any technical features and any technical solutions in the present embodiment do not limit the scope of the present invention, and the scope of the present invention should include any alternative technical solutions that can be conceived by those skilled in the art without creative efforts and new technical solutions that can be obtained by combining any two or more technical means or technical features provided by the present invention with each other by those skilled in the art.

the technical scheme provided by the utility model is explained in more detail below with reference to the accompanying drawings 1-9.

As shown in the figure, the utility model provides a pair of article detection device, include: the portal frame comprises a cross arm 1 positioned at the top and two vertical arms 2 (comprising a first vertical arm 2(a) and a second vertical arm 2(b)) positioned at two sides of the cross arm and connected with the cross arm, and the portal frame forms a detection channel through an area surrounded by the cross arm and the two vertical arms; slewing support devices 22 respectively connected to the upper ends of the two vertical arms (including the first vertical arm 2(a) and the second vertical arm 2(b)) for supporting the cross arm and enabling the two vertical arms to respectively rotate around the vertical axes thereof by the rotation motion thereof; and a radiation imaging based article detection assembly 3 at least partially disposed to the portal frame for detecting an article passing through the portal frame; wherein, the cross arm 1 comprises a telescopic device 11, and the length of the cross arm 1 can be changed through self telescopic motion.

the rotary supporting device 22 may be a rotating shaft having both a rotary function and a supporting function, or an integrated structure formed by combining a rotating shaft having a rotary function and a frame having a supporting function. The rotary supporting device 22 can be driven by a motor to rotate, or can be driven by other means, such as manually or hydraulically.

Furthermore, the slewing bearing 22 is connected to the upper ends of the two vertical arms so that its own rotary movement enables the two vertical arms to rotate respectively about their own vertical axes. The vertical axis of the vertical arm itself is aligned with the vertical straight line where the center of rotation of the rotary support 22 is located. The vertical axis can coincide with a vertical straight line where the geometric center of the vertical arm is located, so that the vertical arm can obtain a more stable rotary motion process; the vertical axis may not coincide with a vertical line in which the geometric center of the vertical arm is located, so that the vertical arm has different turning radii during the rotational movement.

Wherein the vertical arms have different turning radii to improve the adaptability of the article detection device. For example, for a detection area where the objects to be detected are stacked more densely, the vertical arm can rotate the direction with the larger turning radius to the position of the detection channel, so that the overall outline range of the portal frame is smaller, and the object detection device and other objects to be detected can pass through each other conveniently.

When the rotary supporting devices of the two vertical arms synchronously rotate in the same direction by the same angle (less than 180 degrees), the article detection assemblies 3 still maintain the relative position relationship. In the synchronous rotation process of the rotary supporting device, the article detection assembly can detect the articles to be detected in the detection channel at different detection angles, so that scanned images of the articles to be detected at different angles are obtained, and operators can judge the types and components of the articles to be detected more accurately and comprehensively.

The radiation imaging based article detection assembly 3 may utilize radiation to view the interior of an object. The article detection assembly 3 can obtain information such as the internal structure and density of an object without damaging the object, and is widely applied to security inspection of stations, docks and airports at present.

to waiting to detect article for the condition such as goods, combination formula goods, vehicular goods or vehicle to the combination formula goods is the example, the utility model provides an article detection device can change xarm 1's length through the concertina movement of self, and then carries out the adaptability adjustment to the not unidimensional and the shape that combination formula goods has, makes the detection passageway can allow combination formula goods to pass through.

For those skilled in the art, the cargo to be detected can pass through the detection passage by various existing means, including but not limited to a conveyor belt, a transport cart, etc., and will not be described in detail herein. Accordingly, by providing the article detection device with a certain mobility, for example, by being equipped with wheels, or by being equipped with a pulley rail, it is also possible to pass the detection channel of the article detection device over an article to be detected without moving the article to be detected.

the telescopic oil cylinder can be connected to the control hydraulic oil circuit, so that an operator can conveniently adjust the telescopic motion of the telescopic oil cylinder by controlling the hydraulic oil circuit; the telescopic cylinder may also be configured for manual pressure input to reduce the cost of the telescopic device and to obtain a simpler control.

The telescopic oil cylinder can be one-stage or multi-stage, and when the telescopic oil cylinder is multi-stage, the telescopic oil cylinder can have a larger telescopic motion range. And for the multi-stage telescopic oil cylinder, the telescopic motion of the telescopic oil cylinder is quicker and the operation response speed is quicker by controlling each stage of telescopic oil cylinder.

As shown in fig. 2, as any technical solution or any optimized technical solution provided in the foregoing or following of the present invention, the cross arm includes: a telescopic cross arm 13, both ends of which are respectively connected to the two vertical arms, and which can be extended or shortened to change the length of the cross arm; and a fixed cross arm 12 having one end connected to at least one of the two vertical arms for supporting the telescopic cross arm.

the fixed cross arm can support the telescopic cross arm, so that the overall strength and rigidity of the cross arm are improved. Particularly, when the cross arm has a large length under the action of the telescopic device, the fixed cross arm can effectively reduce the deflection of the cross arm, so that components arranged on the cross arm are less affected, and the detection effect of an article to be detected is improved.

In addition, the fixed cross arm can also be used as a guide rail for the telescopic cross arm to do telescopic motion, so that the cross arm is more stable in the process of extending or shortening the telescopic cross arm, an article detection assembly which applies a radiation imaging principle and is sensitive to vibration is less influenced by the telescopic motion of the cross arm, the failure rate of the article detection assembly which is at least partially arranged on the portal frame is reduced, and the service life is prolonged.

as shown in fig. 3, as any technical solution or any optimized technical solution provided in the foregoing or following of the present invention, the article detecting device includes: and a lifting device 21 capable of lifting or lowering the two vertical arms by its own lifting movement. The lifting device may be a telescopic ram or other device that can raise or lower the erector arm, such as a jack or other mechanism.

As shown in fig. 3, the lifting device is located above the article detection assembly 3 on the vertical arm 2, so that the article detection assembly 3 can be continuously supported by the vertical arm in contact with the ground when the lifting device 21 performs lifting motion, and is less affected by the lifting motion. However, it will be appreciated by those skilled in the art that the lifting device may also be located below the article detection assembly 3, or other locations that enable the length of the vertical arm to be varied.

The cross arm can have different height positions through the adjustment of the lifting device for lifting or descending the vertical arm. For the object to be detected with higher height, the height position of the cross arm is improved, so that the object detection assembly provided by the utility model is suitable for use continuously; for the object to be detected with lower height, the cross arm can be close to the upper side of the object to be detected through the height position of the lower cross arm, and the detection precision of the object detection assembly arranged on the cross arm is improved.

as any technical solution or any optimized technical solution provided in the foregoing or following of the present invention is optimized, the article detecting device includes: and wheel-type traveling devices 23 which are respectively provided at lower ends of the two vertical arms (including the first vertical arm 2(a) and the second vertical arm 2(b)) and which can travel and steer the article detection device with respect to the ground by their own traveling motions.

The wheeled walking device 23 may be configured as a wheel machine with autonomous walking capability, or may be configured as a pulley machine assembly that is matched with a preset slide rail. The wheel-type traveling device 23 can make the article detection device have a moving capability, thereby facilitating transition, position adjustment and detection of stationary articles to be detected of the article detection device.

the wheeled walking device 23, as a part of the portal frame contacting the ground, should have a strong stability in the detection state, and thus may be configured with a fixing leg or other parts to provide stability of the article detection device in the stationary state.

As shown in fig. 4, as any technical solution or any optimized technical solution provided in the foregoing or following of the present invention, the article detecting device includes: a ray cabin, which is arranged on one of the two vertical arms (namely the first vertical arm 2(a) or the second vertical arm 2(b)), and comprises a ray source capable of emitting a detection ray to scan the objects passing through the portal frame; the detector is arranged on at least one of the two vertical arms and/or the transverse arm and can detect a transmission signal or a scattering signal of the detected ray on the article so as to perform scanning imaging; and a protection wall provided to the other of the two vertical arms (i.e., the corresponding second vertical arm 2(b) or first vertical arm 2 (a)).

The ray cabin body, the detector and the protective wall can be further rotatably arranged on the two vertical arms to realize flexible control of the ray cabin body, the detector and the protective wall. In this case, the two vertical arms will have two revolving support structures 22 disposed between the two vertical arms and the horizontal arm, and more than one revolving structure disposed between the ray capsule, the detector, and the protective wall and the two vertical arms. When the rotary support structure 22 makes the scanning channel perform steering movement, the relative positions of the ray cabin, the detector and the protective wall can be adjusted by the rotary structure between the ray cabin and the two vertical arms, so that the scanning channel can be always arranged in the direction of the ray cabin relative to the detector.

The detector is arranged at three positions including a vertical arm which is the same as and opposite to the vertical arm where the ray source is arranged and a transverse arm. Correspondingly, when the detector is arranged on a vertical arm opposite to the vertical arm where the ray source is located and/or arranged on a transverse arm, the signal detected by the detector is mainly a projection signal; and when the detector is arranged on the same vertical arm as the vertical arm where the ray source is positioned, the signal detected by the detector is mainly a scattering signal. The projection signal and the scattering signal can reflect different information of the object to be detected, so that the projection signal and the scattering signal have different imaging principles and detection side points, and can be selectively set according to the type of the object to be detected or the working scene of the object detection device.

The detector at least partially arranged on the telescopic cross arm can ensure that the detector can detect detection signals of a region above the detection channel completely in the process of extending the cross arm, so that the scanning and imaging of the object to be detected are more complete and accurate.

As shown in fig. 5-9 (in the figure, the dashed outline shows the state before the portal frame makes corresponding motion, and the solid outline shows the state after the portal frame makes corresponding motion), by the arrangement of the telescopic device, the lifting device, the rotary supporting device and the wheel type walking device, the portal frame can correspondingly realize various motion forms, including but not limited to:

The rotation motion of the two vertical arms as shown in fig. 6 is that the two vertical arms are respectively rotated by a preset angle around their vertical axes by controlling the rotation of the rotary supporting devices arranged on the two vertical arms, so as to realize the rotation motion of the two vertical arms;

Turning movement of the detection channel as shown in fig. 7, namely, controlling the rotary supporting device arranged on one of the two vertical arms to rotate, the wheel type walking device to be stationary relative to the ground, controlling the wheel type walking device arranged on the other of the two vertical arms to walk and turn relative to the ground, and rotating the other of the two vertical arms by a preset angle around one of the two vertical arms to realize the turning movement of the detection channel;

As shown in fig. 8, when the detection channel performs a steering motion, the vertical arms perform a rotation motion, that is, by controlling the rotation of the rotary supporting device disposed on the other of the two vertical arms, the other of the two vertical arms rotates around one of the two vertical arms by a preset angle, and the other of the two vertical arms rotates around its own vertical axis by a preset angle, so that the vertical arms perform a rotation motion while the detection channel performs a steering motion;

And the step-by-step walking motion of the portal frame as shown in fig. 9, namely, the wheel-type walking device arranged on the other of the two vertical arms is controlled to walk and turn relative to the ground by controlling the rotation of the rotary supporting device arranged on one of the two vertical arms and the static state of the wheel-type walking device relative to the ground, so that the other of the two vertical arms rotates for a preset angle around one of the two vertical arms; the rotary supporting device arranged on the other of the two vertical arms is further controlled to rotate, the wheel type walking device is static relative to the ground, the wheel type walking device arranged on one of the two vertical arms is controlled to walk and turn relative to the ground, and one of the two vertical arms is rotated by a preset angle around the other of the two vertical arms; so that the portal frame makes a striding type walking motion.

In the process of turning movement or striding walking movement of the detection channel, one of the two vertical arms serving as the rotating shaft is fixed, while the other vertical arm rotates around the rotating shaft by a certain angle, and at the moment, the article detection assemblies 3 based on radiation imaging and arranged on the two vertical arms can not be arranged correspondingly. Specifically, the detection direction of the part of the article detection assembly 3 disposed on one of the two vertical arms is not changed and points to the detection channel before the turning motion or the striding walking motion of the detection channel, and the detection direction of the part of the article detection assembly 3 disposed on the other of the two vertical arms points to the detection channel after the movement along with the turning motion or the striding walking motion of the detection channel.

At this time, one of the two vertical arms serving as the rotating shaft in the process of the turning motion or the striding walking motion of the detection channel should be adjusted to perform the rotation motion, so that the article detection assembly 3 corresponding to the moved detection channel can normally operate.

Correspondingly, means capable of controlling the rotation of the article detection assembly 3 may be provided on the two vertical arms, so as to maintain the article detection assemblies in the opposite position at all times and maintain the continuous normal operation of the detection tunnel in various movements and combinations of movements of the detection tunnel.

the controller can be constructed by a hydraulic control system or an electric control system, and particularly, the operation principle of the object controlled by the controller is used. Through the controller, operating personnel can be more laborsaving and conveniently to article detection device carries out multiple motion control, thereby makes article detection device can adapt to various application scenarios.

As mentioned above, the size of the detection channel can be flexibly determined according to the size of the object to be detected, and the size of the detection channel can be only slightly larger than the size of the object to be detected, so as to obtain better detection effect. Accordingly, since the telescopic device or the lifting device can be configured to have a multi-stage structure, the detection of the articles to be detected can have a certain sequence. For example, the article to be detected which only needs to be subjected to one-stage stretching or lifting motion is detected, and then the article to be detected which needs to be subjected to two-stage, three-stage and more-stage stretching or lifting motions is detected in turn, so that in each round of detection process, the controller only needs to control the same-stage stretching device or the same-stage lifting device.

as an optimization of any of the solutions or any post-optimization solutions provided in the foregoing or following of the present invention, the controller is configured to: and controlling the rotary supporting device to rotate, so that at least one of the two vertical arms rotates by a preset angle around the vertical axis of the vertical arm, and the self-rotation motion of the vertical arms is realized. As described above, the technical effects that the rotation motions of the two vertical arms can achieve include selectively adjusting the rotation range of the portal frame and performing multi-angle detection on the object to be detected.

The turning motion of detection passage can make the utility model provides an article detection device can detect the article that wait that treat of arbitrary direction. The object detection device has beneficial technical effects on the object detection device at the fixed position and the movable object to be detected, and particularly, when the object to be detected is a vehicle-mounted cargo, the object detection device needs to be adjusted according to vehicles running from different directions under the limitation of the moving direction of the vehicles, for example, the lane is narrow, and the rotating scope of the vehicles is small, so that the object detection efficiency is improved.

For modular goods, they often have an irregular outer profile due to the splicing of multiple goods. When the detection passage is done and turns to the motion the rotation motion is done to perpendicular arm, can be through the detection passage to turn to the motion and make the utility model provides an article detection device is adapted to the outside profile who waits to detect article, and the rotation motion is done simultaneously to perpendicular arm can make set up in article detection component on the perpendicular arm treats with better observation angle all the time and detects article, for example through control perpendicular arm for the rotation angle of xarm makes the detection passage coincide mutually with the narrowest detection cross-section that waits to detect article all the time to improve detection effect.

For example, when the angle of rotation of the second vertical arm about the first vertical arm is preset to be 30 ° clockwise, and the angle of rotation of the first vertical arm about the second vertical arm is preset to be 30 ° counterclockwise, the striding walking direction of the portal frame is the same as the detection passage direction. Through the step-type walking motion mode, the article detection device can move relative to an article to be detected without depending on a wheel-type walking device, so that the detection is carried out at a certain observation angle.

Of course, it will be appreciated by those skilled in the art that the striding walking motion has other preset angle rotations and accordingly has different technical effects. As shown in fig. 9, for example, as an optimization of any one of the technical solutions or any one of the technical solutions provided in the foregoing or the following of the present invention, the controller is further configured to: the angle that the second vertical arm revolves first vertical arm is rotatory to and the angle that first vertical arm revolves second vertical arm is rotatory all predetermines 180, so that when portal frame does the striding type walking motion, the detection passageway can be in proper order towards the article A, B that wait that sets up side by side.

In order to realize right the utility model provides an article detection device's remote control, as the utility model discloses the aforesaid or the optimization of any technical scheme or any post-optimization technical scheme that provides hereafter, article detection device includes: the remote control command transmission assembly is arranged on the portal frame and electrically connected with the controller, and the remote control can be in remote communication with the remote control command transmission assembly so that an operator can remotely control the lifting device, the telescopic device, the rotary supporting device and the wheel type walking device.

Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.

If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.

Also, above-mentioned the utility model discloses if disclose or related to mutually fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated. The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

in describing the present invention, if the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are used, the orientation or positional relationship indicated by the above terms is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description and simplicity of description, and does not indicate or imply that the equipment, mechanism, component or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. An article detection device, comprising:

The portal frame comprises a cross arm positioned at the top and two vertical arms positioned at two sides of the cross arm and connected with the cross arm, and a detection channel is formed by a region surrounded by the cross arm and the two vertical arms;

The rotary supporting devices are respectively connected to the upper ends of the two vertical arms, are used for supporting the cross arm and can enable the two vertical arms to respectively rotate around the vertical axes of the two vertical arms through the self-rotation movement; and

an article detection assembly based on radiation imaging, at least partially disposed in the portal frame, for detecting an article passing through the portal frame;

The cross arm comprises a telescopic device, and the length of the cross arm can be changed through self telescopic motion.

2. The item detecting device according to claim 1, wherein the telescopic means comprises at least one stage of telescopic cylinders.

3. The item detection device of claim 1, wherein the cross-arm comprises:

The two ends of the telescopic cross arm are respectively connected to the two vertical arms and can be extended or shortened to change the length of the cross arm; and

and one end of the fixed cross arm is connected to at least one of the two vertical arms and is used for supporting the telescopic cross arm.

4. The article detection device according to claim 1, wherein the article detection device comprises:

And the lifting device can enable the two vertical arms to do ascending or descending motion through the self lifting motion.

5. the article detection device according to claim 1, wherein the article detection device comprises:

And the wheel type walking devices are respectively arranged at the lower ends of the two vertical arms and can enable the article detection device to walk and turn relative to the ground through self walking motion.

6. The article detection device according to claim 1, wherein the article detection device comprises:

The ray cabin body is arranged on one of the two vertical arms and comprises a ray source which can emit a detection ray to scan the articles passing through the portal frame;

The detector is arranged on at least one of the two vertical arms and/or the transverse arm and can detect a transmission signal or a scattering signal of the detected ray on the article so as to perform scanning imaging; and

And the protective wall is arranged on the other one of the two vertical arms.

7. the item detection device of claim 6, wherein the cross-arm comprises:

the two ends of the telescopic cross arm are respectively connected to the two vertical arms, and the telescopic cross arm can be extended or shortened to change the length of the cross arm; and

A fixed cross arm, one end of which is connected to at least one of the two vertical arms and is used for supporting the vertical arm;

Wherein at least part of the detector is arranged on the telescopic cross arm.

8. The article detection device according to claim 6, wherein the article detection device comprises:

the lifting device can enable the two vertical arms to do ascending or descending motion through the self lifting motion; and

9. The article detection device according to claim 8, wherein the article detection device comprises:

And the controller is used for controlling the lifting motion of the lifting device, the telescopic motion of the telescopic device, the rotary motion of the rotary supporting device and the walking motion of the wheel type walking device.

10. the item detection device of claim 9, wherein the controller is configured to: and controlling the telescopic device to perform telescopic motion of the cross arm and/or the lifting device to perform lifting motion of the portal frame so as to change the size of the detection passage.

11. The item detection device of claim 9, wherein the controller is configured to: and controlling the rotary supporting device to rotate, so that at least one of the two vertical arms rotates by a preset angle around the vertical axis of the vertical arm, and the self-rotation motion of the vertical arms is realized.

12. The article detecting apparatus according to claim 9, wherein the two vertical arms include a first vertical arm and a second vertical arm, the slewing support device includes a first slewing support device corresponding to the first vertical arm and a second slewing support device corresponding to the second vertical arm, and the wheeled traveling device includes a first wheeled traveling device corresponding to the first vertical arm and a second wheeled traveling device corresponding to the second vertical arm;

The controller is configured to:

And controlling the first wheel type walking device to be static relative to the ground, and controlling the first rotary supporting device to rotate so as to enable the second wheel type walking device to walk and steer relative to the ground, so that the cross arm rotates relative to the first vertical arm by a preset angle, and the steering movement of the detection channel is realized.

13. The item detection apparatus of claim 12, wherein the controller is further configured to:

And controlling the second rotary supporting device to rotate, so that the second vertical arm rotates by a preset angle around the vertical axis of the second vertical arm, and the vertical arm performs autorotation motion when the detection channel performs steering motion.

14. The article detecting apparatus according to claim 9, wherein the two vertical arms include a first vertical arm and a second vertical arm, the slewing support device includes a first slewing support device corresponding to the first vertical arm and a second slewing support device corresponding to the second vertical arm, and the wheeled traveling device includes a first wheeled traveling device corresponding to the first vertical arm and a second wheeled traveling device corresponding to the second vertical arm;

The controller is configured to:

Controlling the first wheeled walking device to be static relative to the ground and controlling the first rotary supporting device to rotate so as to enable the second wheeled walking device to walk and steer relative to the ground, and therefore the cross arm rotates relative to the first vertical arm by a preset angle; and

further controlling the second wheeled walking device to be static relative to the ground and controlling the second rotary supporting device to rotate so as to enable the first wheeled walking device to walk and steer relative to the ground, and therefore the cross arm rotates relative to the second vertical arm by a preset angle;

So that the portal frame makes a striding type walking motion.

15. The item detection apparatus of claim 14, wherein the controller is further configured to:

The second vertical arm rotates around the first vertical arm, and the first vertical arm rotates around the second vertical arm, and the angle of the second vertical arm is preset to be 180 degrees, so that when the portal frame does striding type walking motion, the detection channel can sequentially face to the to-be-detected objects which are arranged side by side.

16. The article detection device according to claim 9, wherein the article detection device comprises:

The remote control command transmission assembly is arranged on the portal frame and electrically connected with the controller, and the remote control can be in remote communication with the remote control command transmission assembly so that an operator can remotely control the lifting device, the telescopic device, the rotary supporting device and the wheel type walking device.