CN-121983366-A - Anti-backswing shielding curtain and security inspection machine thereof

Abstract

The invention belongs to the technical field of CT (computed tomography), and discloses a backswing-preventing shielding curtain which comprises a first curtain, a second curtain, a first resistance piece and a second resistance piece, wherein the first curtain is formed by parallel first curtain strips, the second curtain is formed by parallel second curtain strips, the first curtain and the second curtain are arranged in a lamination mode, the first resistance piece and the second resistance piece are fixedly arranged on the first curtain strips, the second resistance piece is fixedly arranged on the second curtain strips, at least one first resistance piece is arranged on the first curtain strips, the second resistance piece and the first resistance piece are in one-to-one correspondence and are mutually attracted, and when the shielding curtain is hung from one side of the first curtain through the shielding curtain, the fixed position of the first resistance piece is lower than that of the corresponding second resistance piece. And a CT security inspection machine comprising the anti-backswing shielding curtain. In order to solve among the current security inspection machine, shielding curtain backswing range is too big, and the model inner space can't obtain the technical problem of make full use of.

Inventors

• ZHOU ZHIYANG
• ZOU YIMEI

Assignees

• 德瑞科(天津)机械制造有限公司

Dates

Publication Date

20260505

Application Date

20260128

Claims (10)

1. 1. A backswing-proof shielding curtain adapted to be suspended within a security inspection device for shielding radiation in a security inspection channel of the security inspection device, comprising: The first curtain consists of first curtain strips which are arranged side by side; the first curtain and the second curtain are arranged in a lamination way; The first resistance piece and the second resistance piece are fixedly arranged on the first curtain strip, and the second resistance piece is fixedly arranged on the second curtain strip; the first curtain strip is provided with at least one first resistance piece, the second resistance piece and the first resistance piece are arranged in one-to-one correspondence, and the second resistance piece and the first resistance piece are attracted with each other; And when the shielding curtain is hung from the first curtain and is not subjected to external force, the fixed position of the first resistance piece is lower than that of the second resistance piece.
2. 2. The anti-rollback shielding curtain of claim 1 wherein the first and second resistance members of the same set are in a relative position when the shielding curtain is raised to the uppermost position.
3. 3. The anti-rollback shielding curtain of claim 1 wherein the first resistance and the second resistance are magnets, one of which is a ferrous object, and the other of which is a ferrous object.
4. 4. The anti-backswing shielding curtain of claim 1, wherein the first resistance member and the second resistance member are magnets, and the opposite poles of the first resistance member and the second resistance member in the same group are disposed opposite to each other.
5. 5. The anti-backswing shielding curtain as claimed in claim 4, wherein the first resistance member and the second resistance member are sheet-shaped soft magnets, and two magnetic poles of the sheet-shaped soft magnets face the front side and the rear side of the shielding curtain respectively.
6. 6. The anti-backswing shielding curtain according to claim 1, wherein the first curtain strips and the second curtain strips are staggered in the width direction of the shielding curtain.
7. 7. The anti-rollback shielding curtain of claim 6, wherein in a width direction of the shielding curtain, the first resistance on the first curtain strip has two columns and the second resistance on the second curtain strip has two columns; the two rows of first resistance elements on the first curtain strip are matched with the two rows of second resistance elements on the two adjacent second curtain strips respectively.
8. 8. The anti-backswing shielding curtain according to claim 1, wherein a first wear layer is arranged on one side of the first curtain strip, which is close to the second curtain strip; and a second wear-resistant layer is arranged on one side of the second curtain strip, which is close to the first curtain strip.
9. 9. The anti-backswing shielding curtain according to claim 1, wherein a protruding thorn layer is arranged on one side of the first connecting curtain, which is close to the second curtain strip, and the protruding thorn on the protruding thorn layer is inclined downwards under the hanging state of the shielding curtain; And a groove layer matched with the thorn layer is arranged on one side of the second curtain strip, which is close to the first curtain strip.
10. 10. A CT security inspection machine having a security inspection channel, comprising at least the anti-rollback shielding curtain of claims 1-9; The anti-backswing shielding curtain is suspended in the security inspection channel, and the top of the anti-backswing shielding curtain is detachably connected with the security inspection machine.

Description

Anti-backswing shielding curtain and security inspection machine thereof Technical Field The invention relates to the technical field of CT (computed tomography), in particular to a backswing-preventing shielding curtain and a security inspection machine thereof. Background Be provided with the shielding curtain that prevents radiation escape in the safety inspection passageway of CT security inspection machine, can raise the shielding curtain certain height when article passes through the shielding curtain, after article passes through completely, the shielding curtain can fall back automatically, because inertia effect shielding curtain returns and continues the swing a section distance after falling back to home position, and the shielding curtain of pendulum can interfere the exploration ray of security inspection equipment, in the present product, in order to avoid the shielding curtain interference check out test set of pendulum, reserve sufficient safe space between shielding curtain and the radiation source generally, even shielding curtain pendulum also can not touch article detection area. Therefore, obvious space waste can be caused, and the whole machine type of the security inspection machine is large. Disclosure of Invention The invention aims to provide a backswing-preventing shielding curtain and a security inspection machine thereof, which solve the problem of larger size of the security inspection machine caused by backswing of the shielding curtain in the prior art. To achieve the purpose, the invention adopts the following technical scheme: a backswing-preventing shielding curtain adapted to be suspended within a security inspection apparatus for shielding radiation in a security inspection channel of the security inspection apparatus, comprising: The first curtain consists of first curtain strips which are arranged side by side; the first curtain and the second curtain are arranged in a lamination way; The first resistance piece and the second resistance piece are fixedly arranged on the first curtain strip, and the second resistance piece is fixedly arranged on the second curtain strip; the first curtain strip is provided with at least one first resistance piece, the second resistance piece and the first resistance piece are arranged in one-to-one correspondence, and the second resistance piece and the first resistance piece are attracted with each other; And when the shielding curtain is hung from the first curtain and is not subjected to external force, the fixed position of the first resistance piece is lower than that of the second resistance piece. Preferably, the first resistance member and the second resistance member of the same group are positioned opposite to each other when the shield curtain is raised to the highest position. Preferably, the first resistance member and the second resistance member are magnets, and the other resistance member is an iron product. Preferably, the first resistance piece and the second resistance piece are both magnets, and opposite magnetic poles of the first resistance piece and the second resistance piece in the same group are arranged oppositely. Preferably, the first resistance piece and the second resistance piece adopt sheet soft magnets, and two magnetic poles of the sheet soft magnets face the front side surface and the rear side surface of the shielding curtain respectively. Preferably, in the width direction of the shielding curtain, the first curtain strips and the second curtain strips are staggered. Preferably, in the width direction of the shielding curtain, the first resistance piece on the first curtain strip has two rows, and the second resistance piece on the second curtain strip has two rows; the two rows of first resistance elements on the first curtain strip are matched with the two rows of second resistance elements on the two adjacent second curtain strips respectively. Preferably, a first wear-resistant layer is arranged on one side of the first curtain strip, which is close to the second curtain strip; and a second wear-resistant layer is arranged on one side of the second curtain strip, which is close to the first curtain strip. Preferably, a protruding thorn layer is arranged on one side of the first connecting curtain, which is close to the second curtain strip, and protruding thorns on the protruding thorn layer are inclined downwards under the hanging state of the shielding curtain; And a groove layer matched with the thorn layer is arranged on one side of the second curtain strip, which is close to the first curtain strip. A CT security inspection machine is provided with a security inspection channel and at least comprises the anti-backswing shielding curtain; The anti-backswing shielding curtain is suspended in the security inspection channel, and the top of the anti-backswing shielding curtain is detachably connected with the security inspection machine. The invention has the beneficial effects that: The anti-b