VEHICLE PULLING DEVICE, SYSTEM FOR PASSING VEHICLE IN TWO MODES, AND INSPECTION SYSTEM THEREOF

• US 20150030124A1
• Filed: 07/21/2014
• Published: 01/29/2015
• Est. Priority Date: 07/23/2013
• Status: Active Grant

• Current Assignee: Nuctech Company Limited (Tsinghua Tongfang Co., Ltd.)
• Original Assignee: Nutech Company Limited
• Inventors: HE, Yuan, WU, Yucheng, RAN, Zhansen
• Granted Patent: US 9,381,963 B2
• Time in Patent Office: Days
• US Class Current: 378/57
• CPC Class Codes: B60S 13/00 Vehicle-manoeuvring devices separate from the vehicle vehicle lifting , e.g. liftable turntables or pushing devices B66F; workshop equipment B25H
• CPC Class Codes: B62D 65/18 Transportation, conveyor or haulage systems specially adapted for motor vehicle or trailer assembly lines conveyors and haulage in general B65G
• CPC Class Codes: B65G 35/06 comprising a load-carrier moving along a path, e.g. a closed path, and adapted to be engaged by any one of a series of traction elements spaced along the path effecting drive at two or more points spaced along the length of an endless conveyor B65G23/32
• CPC Class Codes: G01N 23/04 and forming images of the material
• CPC Class Codes: G01V 5/22 Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays

Abstract

A vehicle pulling device, a system for passing a vehicle in two modes, and an inspection system for scanning a vehicle by radiation are disclosed. The vehicle pulling device comprises a movable chassis disposed in a travel 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. 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 travel 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 oneself to pass through the travel passage. Therefore, when the vehicle does not need to be pulled, the support beam is rotated to the second position, and the vehicle travels by oneself to pass through the travel passage. When the support beam is rotated to the first position, the vehicle pulling device can pull the vehicle to pass through the passage.

Claims

1. A vehicle pulling device comprising:

a movable chassis disposed in a travel 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 travel 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 oneself to pass through the travel passage.

2. The vehicle pulling device of claim 1, further comprising:

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, disposed in the travel 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.

3. The vehicle pulling device of claim 2, wherein

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.

4. The vehicle pulling device of claim 2, wherein

the driven member is a friction wheel, while the driving member is a friction belt.

5. The vehicle pulling device of claim 4, wherein

the friction wheel is connected to the support beam through a shaft.

6. The vehicle pulling device of claim 2, wherein

the driven member is disposed below the movable chassis.

7. The vehicle pulling device of claim 4, further comprising:

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.

8. The vehicle pulling device of claim 1, wherein

the support beam has depressed portions on upper surfaces 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 surfaces of both ends of the support beam so that the vehicle is pulled to pass through the travel passage.

9. The vehicle pulling device of claim 8, wherein

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.

10. The vehicle pulling device of claim 5, further comprising:

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.

11. A system for passing a vehicle in two modes, comprising:

a travel passage through which a vehicle passes; and

a vehicle pulling device disposed in the travel 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 travel 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 oneself to pass through the travel passage.

12. The system of claim 11, further comprising:

a groove disposed in a ground surface in the travel passage,

wherein the movable chassis travels in the groove.

13. The system of claim 12, wherein

when the support beam is in the second position, bottom surfaces of both ends of the support beam are higher than the ground surface.

14. The system of claim 12, wherein

the groove is located substantially at a middle portion of the travel passage in the second direction.

15. An inspection system for scanning a vehicle by radiation, comprising:

an inspection passage through which a vehicle passes,

a radiation source disposed on one side of the inspection passage,

a radiation receiving device disposed on the other side of the inspection passage to receive the radiation passing through the vehicle under inspection, and

a vehicle pulling device for enabling the vehicle to pass through the inspection 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 inspection 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 oneself to pass through the inspection passage.