CN101726500B - Screen curtain structure of object checking system - Google Patents
Screen curtain structure of object checking system Download PDFInfo
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- CN101726500B CN101726500B CN2008102245050A CN200810224505A CN101726500B CN 101726500 B CN101726500 B CN 101726500B CN 2008102245050 A CN2008102245050 A CN 2008102245050A CN 200810224505 A CN200810224505 A CN 200810224505A CN 101726500 B CN101726500 B CN 101726500B
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- door curtain
- curtain
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- screen
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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 (like luggage or parcel), usually adopt x-ray inspection equipment.Article wherein to be checked pass ray channel by means of transport usually.Because the shape of examine article differs, the position that article to be checked are discharged into above the transport is also irregular, and 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, and still, the shortcoming of this door curtain arrangement architecture is: the radiation dose required when safe examination system is many; Be that the article of admission passage can bear bigger door curtain resistance under thickness and the weight of the lead equivalent of shielding material, the plumbous door curtain situation about also thereupon increasing, like this owing to 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 suspension of metalloid rod, 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; Be provided with respectively at the entrance side of the inspection passage of said commodity inspection system and outlet side and be staggered front to back the two-layer of arrangement or multilayer door curtain more; Said 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 said entrance side and/or the multilayer door curtain of said outlet side is arranged in camber line or oblique line.
Preferably, entrance side and the outlet side at the inspection passage of said 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 said 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 said 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 said 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 said 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 said 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 said 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 through a hook, and the other end of each anterior layer door curtain bar links to each other with another deck door curtain bar through another hook, two-layer door curtain bar before and after said each hook passes simultaneously; More preferably, the cross sectional shape of said hook is circular.
Preferably, each door curtain bar of every layer of door curtain is through being positioned at two of diverse location hook suspensions, and said each hook only passes individual layer door curtain bar, and more preferably, the cross sectional shape of said hook is a circle.
Preferably, each door curtain bar of every layer of door curtain is through a hook suspension, and said 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 links up with or has the hook suspension of noncircular cross section through two, 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 through the time suffered resistance be that door curtain is to its friction force f
iIn the horizontal direction component with.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。
Can be found out that by top relational expression the resistance F of article during through plumbous door curtain becomes certain functional relation with the suffered equivalent action power N of plumbous door curtain, 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 through 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 inspection passage 5, is staggered front to back the two- layer screen curtain 1 and 2 of arrangement in the entrance side setting of inspection 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, through the comparison of the present invention and prior art, specify the advantage of first to fourth embodiment of the present invention.
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 with all door curtain bars simultaneously, 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 arrived door curtain, article contacted with two door curtain bars of both sides earlier, contact with other door curtain bar gradually then; Rather than contact with all door curtain bars at the very start, so contact friction force rate prior art is little.
[variant one]
Figure 10 shows variant one of the present invention.Particularly, Figure 10 shows first kind of suspended structure of screen curtain.
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 through a hook; The other end of each anterior layer door curtain bar links to each other with another deck door curtain bar through 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 through 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 through 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 variant, preferably, the cross sectional shape of each hook is circular.
Because therefore each door curtain bar of door curtain can prevent effectively that through being positioned at two hook suspensions of diverse location the door curtain bar is around the hook swing.
[variant two]
Figure 11 shows variant two of the present invention.Particularly, Figure 11 shows second kind of suspended structure of screen curtain.
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 was through being positioned at two hook suspensions of diverse location, but hook only passes individual layer door curtain bar.For example, shown in Figure 11, the end of door curtain bar 2a is through 601 suspensions of a hook, and the other end is linked up with 602 suspensions through another, and links up with 601,602 and all only pass one deck door curtain bar 2a.
Although not shown, in this variant, preferably, the cross sectional shape of each hook is circular.
Because therefore each door curtain bar of door curtain can prevent effectively that through being positioned at two hook suspensions of diverse location the door curtain bar is around the hook swing.
[variant three]
Figure 12 and Figure 13 show variant 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.
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 was through a hook suspension, and each hook has noncircular cross section.For example, shown in Figure 12, door curtain bar 1a is only through 601 suspensions of a hook; And 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 kinds of shapes, it can be that any can prevent the shape of door curtain around the hook swing in the prior art.
[other variant]
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 situation; According to instruction of the present invention; Those skilled in the art will readily appreciate that other variations, for example: entrance side and outlet side at the inspection passage of said commodity inspection system are provided with the door curtain more than three layers respectively.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 variant ought to fall in protection scope of the present invention.
Although illustrated and described embodiments of the invention; For those of ordinary skill in the art; Be appreciated that under the situation that does not break away from principle of the present invention and spirit and can change that scope of the present invention is limited accompanying claims and equivalent thereof to these embodiment.
Claims (6)
1. the screen curtain structure of a commodity inspection system; Be provided with respectively at the entrance side of the inspection passage of said commodity inspection system and outlet side and be staggered front to back the two-layer of arrangement or multilayer door curtain more; Said 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 said entrance side and/or the multilayer door curtain of said outlet side is arranged in camber line or oblique line
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 through a hook; The other end of each anterior layer door curtain bar links to each other with another deck door curtain bar through another hook, and said each hook passes the two-layer door curtain bar in front and back simultaneously.
2. screen curtain structure according to claim 1 is characterized in that:
Entrance side and outlet side at the inspection passage of said 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 said 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 said 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 said 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 said 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 said 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 said 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 the screen curtain structure of claim 1, it is characterized in that: the cross sectional shape of said hook is for circular.
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 CN101726500A (en) | 2010-06-09 |
| CN101726500B true 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) |
Families Citing this family (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 | 上海睿丰自动化系统有限公司 | Radiation protection cover of X-ray safety check equipment |
| 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 |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2373874Y (en) * | 1999-06-16 | 2000-04-12 | 赵殿有 | Multi-function X-ray shielding lead screen for diagnosis |
| US6304629B1 (en) * | 1996-01-11 | 2001-10-16 | Granville Todd Conway | Compact scanner apparatus and method |
| US6663280B2 (en) * | 2001-06-28 | 2003-12-16 | Heimann Systems Gmbh | Inspection unit |
| US7151817B1 (en) * | 2005-09-12 | 2006-12-19 | Analogic Corporation | X-ray inspection systems with improved radiation attenuation shielding |
| CN101107676A (en) * | 2005-01-26 | 2008-01-16 | 史密斯海曼有限公司 | Radiation-shielded door |
-
2008
- 2008-10-17 CN CN2008102245050A patent/CN101726500B/en active Active
Patent Citations (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 |
| US6663280B2 (en) * | 2001-06-28 | 2003-12-16 | Heimann Systems Gmbh | Inspection unit |
| CN101107676A (en) * | 2005-01-26 | 2008-01-16 | 史密斯海曼有限公司 | Radiation-shielded door |
| US7151817B1 (en) * | 2005-09-12 | 2006-12-19 | Analogic Corporation | X-ray inspection systems with improved radiation attenuation shielding |
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|---|---|
| CN101726500A (en) | 2010-06-09 |
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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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