CN203249877U - A safety inspection device with a rotating conveyor - Google Patents

Abstract

A safety inspection device with a rotating conveyor, comprising a box body, a controller, an X-ray perspective imaging machine arranged inside the box body, two lead curtains located at both ends of the box body, a first conveyor belt and a third conveyor belt respectively arranged on the outer sides of the two lead curtains, a first rotary conveyor adjacent to the first conveyor belt and a second rotary conveyor adjacent to the third conveyor belt are respectively arranged on the inner side adjacent to the two lead curtains, The second conveyor belt is located between the first rotary conveyor and the second rotary conveyor; the first rotary conveyor and the second rotary conveyor have the same structure, each rotary conveyor includes a stator and a cylindrical rotor, the The X-ray perspective imaging machine is arranged between the first rotary conveyor and the second rotary conveyor. The safety inspection device with the rotating conveyor provided by the utility model can completely shield X-rays and prevent X-rays from leaking.

Description

A safety inspection device with a rotating conveyor

Technical field :

The utility model relates to a safety inspection device, in particular to a safety inspection device with a rotating conveyor.

Background technology :

The security inspection device is a device that uses X-ray fluoroscopy imaging to detect prohibited items. It uses a conveyor belt to send the checked luggage into the X-ray inspection channel to complete the inspection. When luggage enters the X-ray inspection channel, it will block the package detection sensor, and the detection signal will be sent to the system control part to generate an X-ray trigger signal, which will trigger the X-ray source to emit X-ray beams. A fan-shaped X-ray beam passing through the collimator passes through the inspected items on the conveyor belt, the X-rays are absorbed by the inspected items, and finally bombard the dual-energy semiconductor detector installed in the channel. The detector converts X-rays into signals, and these very weak signals are amplified and sent to the signal processing chassis for further processing and imaging, so that a perspective image can be obtained. In recent years, safety inspection devices have been widely used in important places such as airports, subways, stations, and exhibition centers to detect whether there are foreign objects or dangerous goods in luggage packages and products.

However, X-rays can penetrate cells, damage DNA, and even induce some cancer cells. X-rays can destroy the internal structure of cells, causing irreparable and lifelong damage to genetic molecules. Studies have also shown that X-rays can destroy red blood cells, which may induce blood diseases such as leukemia. Although lead curtains are used to shield X-rays in the existing security inspection devices, when articles such as luggage and parcels pass through the lead curtains, the lead curtains are in a state of lifting, which may cause leakage of X-rays, and when people take and place articles, they also They often directly reach into the lead curtain to pick up and place items, which brings the possibility of being exposed to X-rays. Although the intensity of X-rays used in safety inspection devices is relatively small, they often pass through safety inspection devices such as often sitting People in the subway may be exposed to X-rays for a long time. the

Therefore, there is a need for a safety inspection device that completely shields X-rays and prevents X-rays from leaking. the

Utility model content :

The technical problem to be solved by the utility model is to provide a safety inspection device with a rotating conveyor that completely shields X-rays and prevents X-rays from leaking.

The safety inspection device with rotating conveyor provided by the utility model has a specific technical solution as follows:

A safety inspection device with a rotating conveyor, comprising a box, a controller, an X-ray perspective imaging machine arranged inside the box, and a conveyor belt arranged at the bottom of the box, two lead curtains are located on the box The two ends of the two lead curtains are characterized in that: the conveyor belt includes a first conveyor belt, a second conveyor belt and a third conveyor belt, wherein the first conveyor belt and the third conveyor belt are respectively arranged on the outside of the two lead curtains, adjacent to the two A first rotary conveyor adjacent to the first conveyor belt and a second rotary conveyor adjacent to the third conveyor belt are respectively arranged on the inner side of the lead curtain, and the second conveyor belt is located between the first rotary conveyor and the second rotary conveyor Between; the first rotary conveyor and the second rotary conveyor have the same structure, each rotary conveyor includes a stator and a cylindrical rotor, the stator has a cubic shape, and the stator has a cylindrical through hole that passes through up and down, The cylindrical rotor is arranged in the cylindrical through hole and is tightly connected to the inner wall of the cylindrical through hole, and the middle parts of the opposite sides of the stator respectively form rectangular openings, and the rectangular openings are connected to the inner wall of the cylindrical through hole. The cylindrical through hole penetrates through, and removes the part with an arc angle of 120 degrees and the height of the upper end and the lower end of the rectangular opening in the middle of the side wall of the cylindrical rotor to form a transmission gap, The width of the arc surface of the transmission gap is larger than the width of the rectangular opening, the cylindrical rotor can rotate around its central axis, and the cylindrical rotor is arranged at the bottom of the transmission gap to follow the rotation of the cylindrical rotor. As for the rotating two-way conveyor belt, the two-way conveyor belt can be driven from the edge of the transmission gap to the inside or from the inside of the transmission gap to the edge; the first rotary conveyor and the second rotary conveyor are made of lead-containing materials, and the X The radiographic imaging machine is arranged between the first rotary conveyor and the second rotary conveyor; when the item to be inspected passes through the lead curtain through the first conveyor belt, the controller controls the cylindrical rotor in the first rotary conveyor Rotate until the rectangular opening is completely exposed, the controller controls the two-way conveyor belt to drive from the edge of the transmission gap to the inside, so that the items to be inspected are transmitted to the two-way conveyor belt through the rectangular opening, and the controller controls the two-way conveyor belt The cylindrical rotor of the first rotating conveyor rotates to drive the item to be inspected to face another rectangular opening, and the controller controls the two-way conveyor belt to drive from the inside of the transmission gap to the edge, so that the object to be inspected The article is transferred to the second conveyor belt; the article to be inspected is inspected by the X-ray perspective imaging machine on the second conveyor belt, and then sent to the second rotary conveyor, and the controller controls the second rotary conveyor to wait Inspection items are transferred to the third conveyor belt through another lead curtain.

Preferably, the cylindrical rotor is driven by a driving motor, and the controller controls the operation of the driving motor. the

Preferably, the cylindrical rotor and stator are cast from lead. the

Preferably, the rotational speed of the cylindrical rotor varies with the conveying speed of the conveyor belt. the

The safety inspection device provided by the utility model has the beneficial effect that it can completely shield X-rays and prevent X-rays from leaking. the

Description of drawings :

Fig. 1 is the schematic diagram of the security inspection device with rotary conveyor provided by the utility model;

Reference numerals 1—safety inspection device; 2—casing; 3—X-ray perspective imaging machine; 4—first conveyor belt; 5—second conveyor belt; 6—third conveyor belt; 7—lead curtain; 8—first Rotating conveyor; 9 - second rotating conveyor. the

Specific implementation methods :

Now the utility model will be further described in conjunction with the accompanying drawings.

FIG. 1 shows a schematic diagram of a safety inspection device 1 provided by the present invention with a rotating screen door. The safety inspection device 1 with a rotating conveyor of the present utility model includes a box body 2, a controller, an X-ray perspective imaging machine 3 arranged inside the box body 2, and a conveyor belt arranged at the bottom of the box body 2, Two lead curtains 7 are positioned at the two ends of box body 2, and wherein, described conveyer belt comprises first conveyer belt 4, second conveyer belt 5 and the 3rd conveyer belt 6, wherein the first conveyer belt 4 and the 3rd conveyer belt 6 are respectively arranged on the two The outer side of each lead curtain 7, the first rotary conveyor 8 adjacent to the first conveyor belt 4 and the second rotary conveyor 9 adjacent to the third conveyor belt 6 are respectively arranged on the inner side adjacent to the two lead curtains 7, The second conveyor belt 5 is located between the first rotary conveyor 8 and the second rotary conveyor 9; the first rotary conveyor 8 and the second rotary conveyor 9 have the same structure, taking the first rotary screen door 8 as an example , each rotating conveyor includes a stator and a cylindrical rotor, the stator has a cubic shape, and the stator has a cylindrical through hole that penetrates up and down, and the cylindrical rotor is arranged in the cylindrical through hole and is connected to the cylindrical through hole. The inner wall surface of the cylindrical through hole is closely connected, and the middle parts of the opposite two sides of the stator are respectively formed with rectangular openings, and the rectangular openings are connected with the cylindrical through hole, and in the middle part of the side wall of the cylindrical rotor removing the portion whose arc surface angle is 120 degrees and the height of the upper end and the lower end is respectively consistent with the height of the upper end and the lower end of the rectangular opening to form a transmission gap, the width of the arc surface of the transmission gap is greater than the width of the rectangular opening, The cylindrical rotor can rotate around its central axis, and the bottom of the transmission gap is provided with a two-way conveyor belt that rotates with the rotation of the cylindrical rotor, and the two-way conveyor belt can move from the edge of the transmission gap to Internal transmission or transmission from the inside of the transmission gap to the edge; the first rotary conveyor 8 and the second rotary conveyor 9 are made of lead-containing materials, and the X-ray perspective imaging machine 3 is arranged on the first rotary conveyor 8 Between the second rotary conveyor 9; when the item to be inspected passes through the lead curtain 7 through the first conveyor belt 4, the controller controls the cylindrical rotor in the first rotary conveyor 8 to rotate until the rectangular opening is completely exposed, The controller controls the two-way conveyor belt to drive from the edge of the transmission gap to the inside, so that the items to be inspected are transmitted to the two-way conveyor belt through the rectangular opening, and the controller controls the movement of the first rotary conveyor 8 The cylindrical rotor rotates to drive the item to be inspected to face another rectangular opening, and the controller controls the two-way conveyor belt to drive from the inside of the transmission gap to the edge, thereby transferring the item to be inspected to the first On the second conveyor belt 5; after the article to be inspected is inspected by the X-ray perspective imaging machine 3 on the second conveyor belt 5, it is sent to the second rotary conveyor 9, and the controller controls the second rotary conveyor 9 to be inspected The articles are conveyed onto said third conveyor belt 6 through another lead curtain 9 . Since the first rotary conveyor 8 and the second rotary conveyor 9 rotate no matter how they rotate, X-rays can be sealed between the first rotary conveyor 8 and the second rotary conveyor 9, so X-rays can be completely shielded. X-rays to prevent X-ray leakage. the

Preferably, the cylindrical rotor is driven by a driving motor, and the controller controls the operation of the driving motor. the

Preferably, the cylindrical rotor and stator are cast from lead. the

Preferably, the rotational speed of the cylindrical rotor varies with the conveying speed of the conveyor belt. When there are many items to be inspected, the transmission speed of the conveyor belt can be accelerated, and the rotation speed of the cylindrical rotor can also be increased to match it. the

The safety inspection device with the rotating conveyor provided by the utility model can completely shield X-rays and prevent X-rays from leaking. the

Of course, the above descriptions are only preferred embodiments of the present invention, and the present invention is not limited to the above embodiments and implementation methods. Practitioners in the relevant technical fields can make different changes and implementations within the scope of the technical ideas of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the patent application scope of the present utility model , are all included in the utility model patent application scope. the

Claims (4)

1. safety inspection device with rotation transformer, comprise casing, controller, be arranged on the radioscopy imager of described box house, and the travelling belt that is arranged on described bottom half, two plumbous curtains are positioned at the two ends of casing, it is characterized in that: described travelling belt comprises the first travelling belt, the second travelling belt and the 3rd travelling belt, wherein the first travelling belt and the 3rd travelling belt are arranged at respectively the outside of described two plumbous curtains, the first rotation transformer of contiguous described the first travelling belt and the second rotation transformer of contiguous described the 3rd travelling belt are set respectively in the inboard of contiguous described two plumbous curtains, and described the second travelling belt is between the first rotation transformer and the second rotation transformer; The first rotation transformer has identical structure with the second rotation transformer, each rotation transformer comprises stator and cylindrical rotor, described stator has cubic shaped, the cylindrical hole that has up/down perforation in the described stator, described cylindrical rotor be arranged in the described cylindrical hole and with the driving fit of described cylindrical hole internal face, middle part on the relative two sides of described stator forms respectively rectangular aperture, described rectangular aperture and described cylindrical hole connect, the height of removing camber abgle at the middle part of the sidewall of described cylindrical rotor and be 120 degree and the top and bottom respectively part consistent with the top and bottom height of described rectangular aperture forms the transmission breach, the width of the cambered surface of described transmission breach is greater than the width of described rectangular aperture, described cylindrical rotor can be to rotate around its central shaft, described cylindrical rotor arranges the two-way travelling belt that rotates with the rotation of cylindrical rotor at place, the bottom of described transmission breach, described two-way travelling belt can by the edge that transmits breach to inner transmission or by the inside of transmitting breach to Edge-Transmission; The first rotation transformer and the second rotation transformer are made by lead-containing materials, and described radioscopy imager is arranged between the first rotation transformer and the second rotation transformer; When the examine article through described the first travelling belt by behind the plumbous curtain, controller is controlled cylindrical rotor in described the first rotation transformer and is rotated to rectangular aperture and expose fully, described controller control described two-way travelling belt by the edge that transmits breach to inner transmission, thereby the examine article are sent on the described two-way travelling belt by described rectangular aperture, controller is controlled the cylindrical rotor of described the first rotation transformer and is rotated and described examine article are driven facing to another rectangular aperture, described controller control described two-way travelling belt by the inside of transmitting breach to Edge-Transmission, thereby described examine article are sent on described the second travelling belt; Described examine article on the second travelling belt after the radioscopy imager checks, be sent to the second rotation transformer place, controller is controlled described the second rotation transformer the examine article is sent on described the 3rd travelling belt by another plumbous curtain.

2. the safety inspection device with rotation transformer as claimed in claim 1, it is characterized in that: described cylindrical rotor is driven by drive motor, and described controller is controlled the running of described drive motor.

3. the safety inspection device with rotation transformer as claimed in claim 1 is characterized in that: described cylindrical rotor and stator are formed by the lead casting.

4. the safety inspection device with rotation transformer as claimed in claim 1, it is characterized in that: the velocity of rotation of described cylindrical rotor changes with the variation of the transfer rate of described travelling belt.

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