This application claims priority to Chinese Patent Application No. 201310310974.5 filed Jul. 23, 2013, the disclosures of which are incorporated herein by reference in their entireties.
1. Field of the Invention
The present invention relates to a vehicle pulling device, a system for passing a vehicle in two modes, and an inspection system for scanning a vehicle by radiation.
2. Description of the Related Art
During safety inspection of a vehicle, the vehicle needs to travel along a passage while for example, an X-ray emission device on one side of the passage is used to emit X-rays and the X-rays are received by an X-ray receiving device on the other side of the passage after passing through the vehicle, thereby determining whether there is a contraband item in the vehicle.
An object of the present invention is to provide a vehicle pulling device, a system for passing a vehicle in two modes, and an inspection system for scanning a vehicle by radiation, thereby achieving two inspection modes in which one is a vehicle travels by itself to pass through a passage and the other is the vehicle is pulled to pass through the passage.
In accordance with an aspect of the present invention, there is provided a vehicle pulling device comprising: a movable chassis disposed in a passage for a vehicle and being movable in a first direction; and a support beam disposed to the movable chassis and being rotatable between a first position and a second position, wherein in the first position, the support beam is located substantially in a second direction substantially perpendicular to the first direction, such that wheels of the vehicle are interacted with the support beam of the vehicle pulling device so that the vehicle is pulled to pass through the passage; and in the second position, the support beam is located substantially parallel to the first direction such that the wheels of the vehicle are not interacted with the support beam of the vehicle pulling device so that the vehicle travels by itself to pass through the passage.
In accordance with an aspect of the present invention, there is provided a vehicle pulling device comprising: a movable chassis movable in a first direction; and a support beam disposed to the movable chassis to be rotatable in a substantially horizontal plane and to be rotatable to a first position and a second position, wherein in the first position, the support beam is located substantially in a second direction substantially perpendicular to the first direction; and in the second position, a size of the support beam in the second direction is less than a predetermined value.
In accordance with an aspect of the present invention, the vehicle pulling device further comprises a driven member disposed to the movable chassis and connected to the support beam, wherein the driven member is configured to be driven by a driving member that is disposed in a passage where the movable chassis travels, by movement of the movable chassis in the first direction, thereby rotating the support beam to the first or the second position.
In accordance with an aspect of the present invention, when the movable chassis is located in a first travel position, the driven member begins to be driven by the driving member, and when the movable chassis travels to a second travel position, the driven member is separated from the driving member.
In accordance with an aspect of the present invention, the driven member is a friction wheel, while the driving member is a friction belt.
In accordance with an aspect of the present invention, the friction wheel is connected to the support beam through a shaft.
In accordance with an aspect of the present invention, the driven member is disposed below the movable chassis.
In accordance with an aspect of the present invention, the vehicle pulling device further comprises a position limit member for limiting a rotation range of the friction wheel, wherein the friction wheel has a recess extending in a circumferential direction and having a first end and a second end, and the position limit member is capable of contacting with the first end and the second end to limit the rotation range of the friction wheel.
In accordance with an aspect of the present invention, the support beam has depressed portions on an upper surface of both ends, wherein when the support beam is in the first position, the wheels of the vehicle are engaged with the depressed portions on the upper surface of both ends of the support beam so that the vehicle is pulled to pass through the passage.
In accordance with an aspect of the present invention, each of the two ends of the support beam has ramp portions on both sides, and the depressed portion is located between the ramp portions.
In accordance with an aspect of the present invention, the vehicle pulling device further comprises a position limit member for limiting a rotation range of the friction wheel, wherein the position limit member limits the rotation range of the friction wheel within a range of about 90 degrees.
In accordance with another aspect of the present invention, there is provided a system for passing a vehicle in two modes comprising a passage through which a vehicle passes; and a vehicle pulling device disposed in the passage, the vehicle pulling device comprising: a movable chassis movable in a first direction in which the vehicle travels; and a support beam disposed to the movable chassis and being rotatable between a first position and a second position, wherein in the first position, the support beam is located substantially in a second direction substantially perpendicular to the first direction, such that wheels of the vehicle are interacted with the support beam of the vehicle pulling device so that the vehicle is pulled to pass through the passage; and in the second position, the support beam is located substantially parallel to the first direction such that the wheels of the vehicle are not interacted with the support beam of the vehicle pulling device so that the vehicle travels by itself to pass through the passage.
In accordance with a further aspect of the present invention, the system further comprises a groove disposed in a ground surface in the passage, wherein the movable chassis travels in the groove.
In accordance with a further aspect of the present invention, when the support beam is in the second position, bottom surfaces of the two ends of the support beam are higher than the ground surface.
In accordance with a further aspect of the present invention, the groove is located substantially at a middle portion of the passage in the second direction.
In accordance with a still further aspect of the present invention, there is provided an inspection system for scanning a vehicle by radiation comprising: a passage through which a vehicle passes, a radiation source disposed on one side of the passage, a radiation receiving device disposed on the other side of the passage to receive the radiation passing through the vehicle under inspection, and a vehicle pulling device for enabling the vehicle to pass through the passage in a first direction in a first mode and a second mode, wherein in the first mode, a support beam of the vehicle pulling device is located substantially in a second direction substantially perpendicular to the first direction, such that wheels of the vehicle are interacted with the support beam of the vehicle pulling device so that the vehicle is pulled to pass through the passage; and in the second mode, the support beam is located substantially parallel to the first direction such that the wheels of the vehicle are not interacted with the support beam of the vehicle pulling device so that the vehicle travels by itself to pass through the passage.
The present invention can achieve two inspection modes in which one is a vehicle travels through the passage by itself and the other is the vehicle is pulled to pass through the passage, by means of rotation of the support beam to the first position and the second position.
A further description of the invention will be made as below with reference to embodiments of the present invention taken in conjunction with the accompanying drawings.
As shown in
As shown in
As shown in
As shown in
As shown in
When the vehicle 20 under inspection needs to be pulled to pass through the passage 15, the support beam 103 is rotated to the first position, the front wheels 21 of the vehicle 20 travel into the depressed portions 1031 of the support beam 103, and the movable chassis 101 drives the support beam 103 and the vehicle 20 to pass through the passage 15 together, as shown in
The support beam 103 may be mounted to the movable chassis 101 in any appropriate manner. For example, as shown in
As shown in
Further, the annular members 1051 and 1052 of the rotary support 105 may be slidably moved relative to each other. In other words, the annular members 1051 and 1052 may constitute a sliding-contact thrust bearing. In addition, the support beam 103 and the movable chassis 101 may be connected together through a standard thrust bearing.
As shown in
As shown in
As shown in
In an embodiment, the driven member 112 is embodied as a friction wheel, while the driving member 113 is embodied as a friction belt as shown in
The movable chassis 101 can travel along the passage 15 in any appropriate manner. For example, the movable chassis 101 itself has a drive device or is driven by other drive device. For example, as shown in
As shown in
As shown in
As shown in
As shown in
An operational manner of the vehicle pulling device 100 according to an embodiment of the present invention is explained as below by taking the driven member 112 and the driving member 113 for example by referring to
If the next vehicle 20 does not need to be pulled for the inspection, the chain 163 of the chain type drive device 160 is driven to move, and the chain 163 drives the draft vehicle 20 or movable chassis 101 to move in the second travel direction T2. The draft vehicle 20 or movable chassis 101 is returned directly to the first travel position A. During the travelling of the draft vehicle 20 or movable chassis 101 from the second travel position B to the first travel position A, the driven member 112 is in contact with the driving member 113, and thus the support beam 103 automatically rotates to the initial state, i.e., the state shown in
In an embodiment, the support beam 103 is rotated only manually. Therefore, in this case, it is not necessary to provide the driven member 112 and the driving member 113.
In addition, the vehicle pulling device according to the present invention is also applicable to any appropriate system, and is not limited to the application in an inspection system for scanning a vehicle by radiation. Furthermore, the vehicle pulling device can form a system for passing a vehicle in two modes.
Number | Date | Country | Kind |
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2013 1 0310974 | Jul 2013 | CN | national |
Number | Name | Date | Kind |
---|---|---|---|
5651319 | Sugahara | Jul 1997 | A |
6192104 | Adams | Feb 2001 | B1 |
6542580 | Carver | Apr 2003 | B1 |
6763635 | Lowman | Jul 2004 | B1 |
6920197 | Kang | Jul 2005 | B2 |
6928141 | Carver | Aug 2005 | B2 |
7103137 | Seppi | Sep 2006 | B2 |
7350613 | Dehne | Apr 2008 | B2 |
7356116 | Anwar | Apr 2008 | B2 |
7369643 | Kotowski | May 2008 | B2 |
7379530 | Hoff | May 2008 | B2 |
7400701 | Cason | Jul 2008 | B1 |
7497618 | Chen | Mar 2009 | B2 |
7526064 | Akery | Apr 2009 | B2 |
7660386 | Meng | Feb 2010 | B2 |
7663109 | Kang | Feb 2010 | B2 |
7702070 | Kang | Apr 2010 | B2 |
7706502 | Bueno | Apr 2010 | B2 |
7722251 | Kang | May 2010 | B2 |
7742568 | Smith | Jun 2010 | B2 |
7780390 | Fujiwara | Aug 2010 | B2 |
7783004 | Kotowski | Aug 2010 | B2 |
7819580 | Song | Oct 2010 | B2 |
7845286 | Hu | Dec 2010 | B2 |
7848485 | Hu | Dec 2010 | B2 |
7929664 | Goodenough | Apr 2011 | B2 |
8155384 | Chew | Apr 2012 | B2 |
8230988 | Tada | Jul 2012 | B2 |
8295433 | Linev | Oct 2012 | B2 |
8340245 | Herranz | Dec 2012 | B2 |
8345819 | Mastronardi | Jan 2013 | B2 |
8382408 | Sun | Feb 2013 | B2 |
8472583 | Star-Lack | Jun 2013 | B2 |
8582720 | Morton | Nov 2013 | B2 |
8615067 | Hayes | Dec 2013 | B2 |
8824632 | Mastronardi | Sep 2014 | B2 |
8903046 | Morton | Dec 2014 | B2 |
8971487 | Mastronardi | Mar 2015 | B2 |
9036779 | Morton | May 2015 | B2 |
9057679 | Morton | Jun 2015 | B2 |
20080159840 | Hu et al. | Jul 2008 | A1 |
20090067962 | Lee | Mar 2009 | A1 |
Number | Date | Country |
---|---|---|
2752211 | Jan 2006 | CN |
200974538 | Nov 2007 | CN |
102107767 | Jun 2011 | CN |
203382122 | Jan 2014 | CN |
4446835 | Jul 1996 | DE |
1486390 | Dec 2004 | EP |
WO 9946188 | Sep 1999 | WO |
WO 2004035967 | Apr 2004 | WO |
Entry |
---|
European Patent Application No. 14175417.6; Extended Search Report; dated Sep. 4, 2015; 5 pages. |
Great Britain Patent Application No. 1412365.7; Combined Search Report and Exam Report; dated Jan. 15, 2015; 6 pages. |
Number | Date | Country | |
---|---|---|---|
20150030124 A1 | Jan 2015 | US |