CN101726500A - Screen curtain structure of object checking system - Google Patents
Screen curtain structure of object checking system Download PDFInfo
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- CN101726500A CN101726500A CN200810224505A CN200810224505A CN101726500A CN 101726500 A CN101726500 A CN 101726500A CN 200810224505 A CN200810224505 A CN 200810224505A CN 200810224505 A CN200810224505 A CN 200810224505A CN 101726500 A CN101726500 A CN 101726500A
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- door curtain
- curtain
- bar
- layer
- hook
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- 238000007689 inspection Methods 0.000 claims description 19
- 238000010586 diagram Methods 0.000 description 11
- 230000005484 gravity Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The invention discloses a screen curtain structure of an object checking system. Two or more layers of curtains interlaced front and back are arranged at the inlet side and the outlet side of a check passage of the object checking system. Each layer of curtain comprises a plurality of curtain bars, wherein the curtain bars of at least one layer of curtains at the inlet side and/or the curtains at the outlet side are arranged in an arc line or an oblique line. The invention also provides an object checking system comprising the screen curtain structure. Compared with the prior art, the invention can reduce the frictional force between objects and the screen curtains as the screen curtains arranged in an arc line or an oblique line are adopted; besides, the curtain hook has a rectangular uniform section, thereby preventing curtains from swinging around the hook.
Description
Technical field
The present invention relates to a kind of screen curtain structure of commodity inspection system.
Background technology
In the safety inspection field of article (as luggage or parcel), usually adopt x-ray inspection equipment.Article wherein to be checked pass ray channel by means of conveying device usually.Because the shape of examine article differs, the position that article to be checked are discharged into above the conveying device is also irregular, door curtain nuzzles up on article to be checked, in the prior art, as shown in Figure 7, all be provided with the two-layer protective lead door curtain that two-layer (or multilayer) is staggered front to back arrangement at the entrance and exit of checking passage, and every layer of plumbous door curtain is arranged in a linear, but, the shortcoming of this door curtain arrangement architecture is: the radiation dose required when safe examination system is many, it is the lead equivalent of shielding material, under the situation that the thickness of plumbous door curtain and weight also increase thereupon, the article of admission passage can bear bigger door curtain resistance, like this because the friction force effect of article and door curtain, door curtain is pulled to the next door probably, cluster round, not only can cause very big passage slit, and can strengthen door curtain the frictional resistance of article and the wearing and tearing between the door curtain.
And, in the prior art, door curtain wears and is suspended on the cylindrical hook, when having big friction force between door curtain and the article, can cause door curtain to swing around hook, so not only very big passage slit can be caused, and door curtain can be strengthened the frictional resistance of article and the wearing and tearing between the door curtain.
American documentation literature US6304629 discloses a kind of plumbous door curtain, and this door curtain adopts a kind of structure of metalloid rod to hang, and connects with bolt, and the shortcoming of this scheme is that dismounting is inconvenient.
Summary of the invention
One aspect of the present invention is intended to provide a kind of screen curtain structure that can reduce the friction force between article and the screen curtain.
According to an aspect of the present invention, a kind of screen curtain structure of commodity inspection system is provided, entrance side and outlet side at the inspection passage of described commodity inspection system are provided with the two-layer or more multi-layered door curtain that is staggered front to back arrangement respectively, described every layer of door curtain comprises a plurality of door curtain bars, it is characterized in that: the door curtain bar of the door curtain of one deck at least in the multilayer door curtain of described entrance side and/or the multilayer door curtain of described outlet side is arranged in camber line or oblique line.
Preferably, entrance side and the outlet side at the inspection passage of described commodity inspection system is provided with two-layer door curtain respectively.
Preferably, the door curtain bar of the outer door curtain in the two-layer door curtain of described entrance side is arranged in a straight line, and the door curtain bar of internal layer door curtain is arranged in camber line or oblique line; And the door curtain bar of the outer door curtain in the two-layer door curtain of described outlet side is arranged in a straight line, and the door curtain bar of internal layer door curtain is arranged in camber line or oblique line.
Preferably, the door curtain bar of every layer of door curtain in the two-layer door curtain of described entrance side all is arranged in camber line or oblique line; And the door curtain bar of every layer of door curtain in the two-layer door curtain of described outlet side all is arranged in camber line or oblique line.
Preferably, the door curtain bar of the outer door curtain in the two-layer door curtain of described entrance side is arranged in camber line or oblique line, and the door curtain bar of internal layer door curtain is arranged in a straight line; And the door curtain bar of the outer door curtain in the two-layer door curtain of described outlet side is arranged in a straight line, and the door curtain bar of internal layer door curtain is arranged in camber line or oblique line.
Preferably, in the adjacent two-layer door curtain in front and back, one end of each anterior layer door curtain bar links to each other with a deck door curtain bar by a hook, the other end of each anterior layer door curtain bar links to each other with another deck door curtain bar by another hook, two-layer door curtain bar before and after described each hook passes simultaneously, more preferably, the cross sectional shape of described hook is circular.
Preferably, each door curtain bar of every layer of door curtain hangs by being positioned at two of diverse location hooks, and described each hook only passes individual layer door curtain bar, and more preferably, the cross sectional shape of described hook is a circle.
Preferably, each door curtain bar of every layer of door curtain hangs by a hook, and described each hook has noncircular cross section.
Compared with prior art, because therefore the screen curtain that the present invention adopts camber line or oblique line to arrange can reduce the friction force between article and the screen curtain; And each door curtain bar of the present invention is linked up with by two or hook with noncircular cross section hangs, and can prevent effectively that therefore door curtain is around the hook swing.
Description of drawings
Fig. 1 shows the force analysis figure between screen curtain and the article;
Fig. 2 shows the screen curtain structure synoptic diagram of the first embodiment of the present invention;
Fig. 3 shows the vertical view of screen curtain structure shown in Figure 2;
Fig. 4 shows the screen curtain structure synoptic diagram of the second embodiment of the present invention;
Fig. 5 shows the screen curtain structure synoptic diagram of the third embodiment of the present invention;
Fig. 6 shows the screen curtain structure synoptic diagram of the fourth embodiment of the present invention;
Fig. 7 shows the screen curtain structure synoptic diagram of prior art;
Fig. 8 shows that article pass through the synoptic diagram of the screen curtain structure of prior art;
Fig. 9 shows that article pass through the synoptic diagram of screen curtain structure of the present invention;
Figure 10 shows first kind of suspended structure of screen curtain;
Figure 11 shows second kind of suspended structure of screen curtain;
Figure 12 shows the third suspended structure of screen curtain; With
Figure 13 shows the sectional view of the hook in the third suspended structure of screen curtain.
Embodiment
Fig. 1 shows the force analysis figure between screen curtain and the article.As shown in Figure 1: the plumbous door curtain of vertical hanging is because action of gravity can produce certain resistance to the article that pass through, and resistance mainly is a friction force.As shown in Figure 1, in be in contact with one another at door curtain and article one section, earlier with this a bit of limited the junior unit that quantity is n, each segment door curtain gravity G of being divided into
i=G/n, this segment door curtain gravity G
iPerpendicular to the component N on the surface in contact of article
i, the friction force f that this segment door curtain produces article
i=uN
iBecause the direction of motion of article is horizontal direction, thus article by the time suffered resistance be that door curtain is to its friction force f
iIn the horizontal direction component and.So resistance F is:
F＝f
1cosb
1+f
2cosb
2+......+f
icosb
i，i＝1......n，
Wherein b is the angle of f and horizontal direction, that is:
F＝uN
1cosb
1+......+uN
icosb
i
＝uG
1sina
1cosb
1+uG
2sina
2cosb
2+......+uG
isina
icosb
i。
By top relational expression as can be seen, the suffered equivalent action power N of the resistance F of article during by plumbous door curtain and plumbous door curtain becomes certain functional relation, and can represent with such formula: F=f (N), resistance F are the functions of equivalent action power N.N is big more, and resistance F is just big more.So, can realize by reducing N in order to reduce resistance F.Design philosophy based on such has proposed the present invention.
[first embodiment]
Fig. 2 and Fig. 3 show the first embodiment of the present invention.Wherein, Fig. 2 shows the screen curtain structure synoptic diagram of the first embodiment of the present invention; Fig. 3 shows the vertical view of screen curtain structure shown in Figure 2.
As shown in Figure 2, commodity inspection system 101 has checks passage 5, is staggered front to back the two- layer screen curtain 1 and 2 of arrangement in the entrance side setting of checking passage 5, at the outlet side of checking passage 5 the two- layer screen curtain 3 and 4 that is staggered front to back arrangement is set also.By shown in Figure 2, every layer of door curtain comprises a plurality of door curtain bars, and particularly, door curtain 1 comprises a plurality of door curtain bar 1a, and door curtain 2 comprises a plurality of door curtain bar 2a, and door curtain 3 comprises a plurality of door curtain bar 3a, and door curtain 4 comprises a plurality of door curtain bar 4a.
As shown in Figures 2 and 3, a plurality of door curtain bar 1a of the outer door curtain 1 in the two-layer door curtain of the entrance side of inspection passage 5 are arranged in a straight line, and a plurality of door curtain bar 2a of internal layer door curtain 2 are arranged in camber line; And a plurality of door curtain bar 4a of the outer door curtain 4 in the two-layer door curtain of the outlet side of inspection passage 5 are arranged in a straight line, and a plurality of door curtain bar 3a of internal layer door curtain 3 are arranged in camber line.
[second embodiment]
Fig. 4 shows the second embodiment of the present invention.
As shown in Figure 4, in the second embodiment of the present invention, a plurality of door curtain bar 1a of the outer door curtain 1 in the two-layer door curtain of entrance side are arranged in a straight line, and a plurality of door curtain bar 2a of internal layer door curtain 2 are arranged in oblique line; A plurality of door curtain bar 4a of the outer door curtain 4 in the two-layer door curtain of outlet side are arranged in a straight line, and a plurality of door curtain bar 3a of internal layer door curtain 3 are arranged in oblique line.
[the 3rd embodiment]
Fig. 5 shows the third embodiment of the present invention.
As shown in Figure 5, in the third embodiment of the present invention, a plurality of door curtain bar 1a of the outer door curtain 1 of entrance side are arranged in camber line, and a plurality of door curtain bar 2a of the internal layer door curtain 2 of entrance side also are arranged in camber line; A plurality of door curtain bar 4a of the outer door curtain 4 of outlet side are arranged in camber line, and a plurality of door curtain bar 3a of the internal layer door curtain 3 of outlet side also are arranged in camber line.
[the 4th embodiment]
Fig. 6 shows the fourth embodiment of the present invention.
As shown in Figure 6, in the fourth embodiment of the present invention, a plurality of door curtain bar 1a of the outer door curtain 1 of entrance side are arranged in camber line, and a plurality of door curtain bar 2a of the internal layer door curtain 2 of entrance side are arranged in a straight line; A plurality of door curtain bar 4a of the outer door curtain 4 of outlet side are arranged in a straight line, and a plurality of door curtain bar 3a of the internal layer door curtain 3 of outlet side are arranged in camber line.
[advantage of first to fourth embodiment of the present invention]
Below, by the comparison of the present invention and prior art, describe the advantage of first to fourth embodiment of the present invention in detail.
Fig. 7 and Fig. 8 show the screen curtain of prior art.Fig. 7 shows the screen curtain structure synoptic diagram of prior art; Fig. 8 shows that article pass through the synoptic diagram of screen curtain structure of the prior art of Fig. 7.As shown in Figure 8, because a plurality of door curtain bars of the door curtain of prior art are arranged in a straight line, when article one arrive door curtain, article will contact simultaneously with all door curtain bars, so contact friction force is bigger.
Fig. 9 shows that article pass through the synoptic diagram of screen curtain structure of the present invention.As shown in Figure 9, because a plurality of door curtain bars of door curtain of the present invention are arranged in camber line or oblique line, when article arrive door curtain, article contact with two door curtain bars of both sides earlier, contact with other door curtain bar gradually then, rather than contact with all door curtain bar at the very start, so contact friction force rate prior art is little.
[changing example one]
Figure 10 shows variation example one of the present invention.Particularly, Figure 10 shows first kind of suspended structure of screen curtain.
As shown in figure 10, when the close together of the two-layer door curtain in front and back, one end of each anterior layer door curtain bar links to each other with a deck door curtain bar by a hook, the other end of each anterior layer door curtain bar links to each other with another deck door curtain bar by another hook, and each hook passes the two-layer door curtain bar in front and back simultaneously.For example, shown in Figure 10, the end of a door curtain bar 1a1 of anterior layer links to each other by the door curtain bar 2a1 of a hook 601 with the back layer, and the other end of door curtain bar 1a1 links to each other by another door curtain bar 2a2 of another hook 602 with the back layer, two-layer door curtain bar before and after hook 601,602 passes simultaneously.
Although not shown, in this variation example, preferably, the cross sectional shape of each hook is circular.
Because each door curtain bar of door curtain hangs by two hooks that are positioned at diverse location, can prevent effectively that therefore the door curtain bar is around the hook swing.
[changing example two]
Figure 11 shows variation example two of the present invention.Particularly, Figure 11 shows second kind of suspended structure of screen curtain.
As shown in figure 11, when the distance of the two-layer door curtain in front and back was far away, each door curtain bar of every layer of door curtain hung by two hooks that are positioned at diverse location, but hook only passes individual layer door curtain bar.For example, shown in Figure 11, the end of door curtain bar 2a hangs by a hook 601, and the other end hangs by another hook 602, and links up with 601,602 and all only pass one deck door curtain bar 2a.
Although not shown, in this variation example, preferably, the cross sectional shape of each hook is circular.
Because each door curtain bar of door curtain hangs by two hooks that are positioned at diverse location, can prevent effectively that therefore the door curtain bar is around the hook swing.
[changing example three]
Figure 12 and Figure 13 show variation example three of the present invention.Particularly, Figure 12 shows the third suspended structure of screen curtain.Figure 13 shows the sectional view of the hook in the third suspended structure of screen curtain.
As shown in figure 12, when the distance of the two-layer door curtain in front and back was far away, each door curtain bar of every layer of door curtain hung by a hook, and each hook has noncircular cross section.For example, shown in Figure 12, door curtain bar 1a only hangs by a hook 601, and, as shown in figure 13, each hook has noncircular cross section, particularly, Figure 13 a shows that the cross sectional shape of hook is a rectangle, and Figure 13 b shows that the cross sectional shape of hook is a hexagon, Figure 13 c shows that the cross sectional shape of hook is semicircle half square, and Figure 14 d shows that the cross sectional shape of hook is a Long Circle.Need to prove that the cross sectional shape of hook is not limited to above-mentioned several shape, it can be that any can prevent the shape of door curtain around the hook swing in the prior art.
[other changes example]
Although top embodiment one to embodiment four has enumerated the screen curtain structure of four kinds of different structures, but the present invention is not limited to above-mentioned four kinds of situations, according to instruction of the present invention, those skilled in the art will readily appreciate that other changes structure, for example: door curtain more than three layers is set respectively at the entrance side of the inspection passage of described commodity inspection system and outlet side.Only the door curtain bar of the multilayer door curtain of entrance side is arranged in camber line or oblique line, or only the door curtain bar of the multilayer door curtain of outlet side is arranged in camber line or oblique line.Only the door curtain bar of one deck door curtain in the multilayer door curtain of entrance side is arranged in camber line or oblique line, or only the door curtain bar of one deck door curtain in the multilayer door curtain of outlet side is arranged in camber line or oblique line.These change example and ought to fall within the scope of protection of the present invention.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can change that scope of the present invention is limited by claims and equivalent thereof to these embodiment.
Claims (10)
1. the screen curtain structure of a commodity inspection system, entrance side and outlet side at the inspection passage of described commodity inspection system are provided with the two-layer or more multi-layered door curtain that is staggered front to back arrangement respectively, described every layer of door curtain comprises a plurality of door curtain bars, it is characterized in that: the door curtain bar of the door curtain of one deck at least in the multilayer door curtain of described entrance side and/or the multilayer door curtain of described outlet side is arranged in camber line or oblique line.
2. screen curtain structure according to claim 1 is characterized in that:
Entrance side and outlet side at the inspection passage of described commodity inspection system are provided with two-layer door curtain respectively.
3. screen curtain structure according to claim 2 is characterized in that:
The door curtain bar of the outer door curtain in the two-layer door curtain of described entrance side is arranged in a straight line, and the door curtain bar of internal layer door curtain is arranged in camber line or oblique line; And
The door curtain bar of the outer door curtain in the two-layer door curtain of described outlet side is arranged in a straight line, and the door curtain bar of internal layer door curtain is arranged in camber line or oblique line.
4. according to the screen curtain structure of claim 2, it is characterized in that:
The door curtain bar of every layer of door curtain in the two-layer door curtain of described entrance side all is arranged in camber line or oblique line; And
The door curtain bar of every layer of door curtain in the two-layer door curtain of described outlet side all is arranged in camber line or oblique line.
5. according to the screen curtain structure of claim 2, it is characterized in that:
The door curtain bar of the outer door curtain in the two-layer door curtain of described entrance side is arranged in camber line or oblique line, and the door curtain bar of internal layer door curtain is arranged in a straight line; And
The door curtain bar of the outer door curtain in the two-layer door curtain of described outlet side is arranged in a straight line, and the door curtain bar of internal layer door curtain is arranged in camber line or oblique line.
6. according to each described screen curtain structure among the claim 1-5, it is characterized in that:
In the adjacent two-layer door curtain in front and back, one end of each anterior layer door curtain bar links to each other with a deck door curtain bar by a hook, the other end of each anterior layer door curtain bar links to each other with another deck door curtain bar by another hook, and described each hook passes the two-layer door curtain bar in front and back simultaneously.
7. according to the screen curtain structure of claim 6, it is characterized in that: the cross sectional shape of described hook is for circular.
8. according to each described screen curtain structure among the claim 1-5, it is characterized in that: each door curtain bar of every layer of door curtain hangs by two hooks that are positioned at diverse location, and described each hook only passes individual layer door curtain bar.
9. screen curtain structure according to Claim 8 is characterized in that: the cross sectional shape of described hook is for circular.
10. according to each described screen curtain structure among the claim 1-5, it is characterized in that: each door curtain bar of every layer of door curtain hangs by a hook, and described each hook has noncircular cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102245050A CN101726500B (en) | 2008-10-17 | 2008-10-17 | Screen curtain structure of object checking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102245050A CN101726500B (en) | 2008-10-17 | 2008-10-17 | Screen curtain structure of object checking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101726500A true CN101726500A (en) | 2010-06-09 |
| CN101726500B CN101726500B (en) | 2012-05-23 |
Family
ID=42447703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102245050A Active CN101726500B (en) | 2008-10-17 | 2008-10-17 | Screen curtain structure of object checking system |
Country Status (1)
| Country | Link |
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| CN (1) | CN101726500B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290108A (en) * | 2011-05-20 | 2011-12-21 | 上海英迈吉东影图像设备有限公司 | Integrated ray shielding lead curtain and manufacturing method thereof |
| CN103226985A (en) * | 2013-03-27 | 2013-07-31 | 上海睿丰自动化***有限公司 | Radiation protection cover of X-ray safety check equipment |
| CN106066337A (en) * | 2016-08-18 | 2016-11-02 | 同方威视技术股份有限公司 | For detecting lead door curtain preventer and the method for shielding ray of device |
| CN106429221A (en) * | 2016-11-16 | 2017-02-22 | 同方威视技术股份有限公司 | Security inspection machine |
| CN110987973A (en) * | 2019-11-01 | 2020-04-10 | 陕西众策网络科技发展有限公司 | X-ray product quality detection device |
| CN113747775A (en) * | 2020-05-29 | 2021-12-03 | 同方威视技术股份有限公司 | Radio frequency identification device for preventing electromagnetic interference between security inspection channels and method for manufacturing shielding plate |
| CN114917374A (en) * | 2022-04-12 | 2022-08-19 | 厦门光莆电子股份有限公司 | Multi-bin layout structure of cold chain sterilizer and cold chain sterilizer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6304629B1 (en) * | 1996-01-11 | 2001-10-16 | Granville Todd Conway | Compact scanner apparatus and method |
| CN2373874Y (en) * | 1999-06-16 | 2000-04-12 | 赵殿有 | Multi-function X-ray shielding lead screen for diagnosis |
| DE10131407A1 (en) * | 2001-06-28 | 2003-01-09 | Heimann Systems Gmbh & Co | inspection system |
| DE102005016632B3 (en) * | 2005-01-26 | 2006-08-10 | Smiths Heimann Gmbh | Strahlenschutztor |
| US7151817B1 (en) * | 2005-09-12 | 2006-12-19 | Analogic Corporation | X-ray inspection systems with improved radiation attenuation shielding |
-
2008
- 2008-10-17 CN CN2008102245050A patent/CN101726500B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290108A (en) * | 2011-05-20 | 2011-12-21 | 上海英迈吉东影图像设备有限公司 | Integrated ray shielding lead curtain and manufacturing method thereof |
| CN103226985A (en) * | 2013-03-27 | 2013-07-31 | 上海睿丰自动化***有限公司 | Radiation protection cover of X-ray safety check equipment |
| CN106066337A (en) * | 2016-08-18 | 2016-11-02 | 同方威视技术股份有限公司 | For detecting lead door curtain preventer and the method for shielding ray of device |
| CN106066337B (en) * | 2016-08-18 | 2019-03-01 | 同方威视技术股份有限公司 | The method of lead door curtain protective device and shielding ray for detection device |
| US10739282B2 (en) | 2016-08-18 | 2020-08-11 | Nuctech Company Limited | Lead curtain protective device for detecting device and ray shielding method |
| CN106429221A (en) * | 2016-11-16 | 2017-02-22 | 同方威视技术股份有限公司 | Security inspection machine |
| CN106429221B (en) * | 2016-11-16 | 2018-11-06 | 同方威视技术股份有限公司 | A kind of screening machine |
| CN110987973A (en) * | 2019-11-01 | 2020-04-10 | 陕西众策网络科技发展有限公司 | X-ray product quality detection device |
| CN113747775A (en) * | 2020-05-29 | 2021-12-03 | 同方威视技术股份有限公司 | Radio frequency identification device for preventing electromagnetic interference between security inspection channels and method for manufacturing shielding plate |
| CN114917374A (en) * | 2022-04-12 | 2022-08-19 | 厦门光莆电子股份有限公司 | Multi-bin layout structure of cold chain sterilizer and cold chain sterilizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101726500B (en) | 2012-05-23 |
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Effective date of registration: 20190516 Address after: 100038 No. 29 Beihoneycomb Road, Haidian District, Beijing Co-patentee after: China Railway Scientific Research Institute Group Co., Ltd. Patentee after: China Railway Economic Planning Research Institute Co., Ltd. Co-patentee after: Nuctech Company Limited Address before: 100084 Beijing city Haidian District Shuangqing Road with Party building A block 2 layer Patentee before: Nuctech Company Limited |
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