CN104316970A - Single-column X-ray back scattering human body safety scanner - Google Patents
Single-column X-ray back scattering human body safety scanner Download PDFInfo
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- CN104316970A CN104316970A CN201410623755.7A CN201410623755A CN104316970A CN 104316970 A CN104316970 A CN 104316970A CN 201410623755 A CN201410623755 A CN 201410623755A CN 104316970 A CN104316970 A CN 104316970A
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Abstract
The invention relates to a single-column X-ray back scattering human body safety scanner. The single-column X-ray back scattering human body safety scanner comprises a base plate, a stand column, an electric appliance rack, a power distribution cabinet, a scanning platform, a flying-spot scanning mechanism and a signal detector, wherein the flying-spot scanning mechanism and the signal detector are installed on the scanning platform, and a swinging mechanism used for driving the flying-spot scanning mechanism to swing up and down is installed on the scanning platform. The single-column X-ray back scattering human body safety scanner is characterized in that the stand column is installed on the base plate through fasteners, a side vertical plate is installed on the inner side of the stand column, a lifting mechanism used for driving the side vertical plate to rise and fall is arranged on the stand column, the side vertical plate is connected with the swinging mechanism through a supporting shaft, and the power distribution cabinet is arranged on the side opposite to the stand column and is connected with the base plate through fasteners. By the adoption of the technical scheme, the single-column X-ray back scattering human body safety scanner is more compact in structure, the overall size of the scanner is reduced, the space occupied by the scanner is reduced, and the overall weight of the scanner is lowered; the scanner can rise, fall and swing up and down, and thus the scanning range is widened greatly; in addition, due to the design of a counter weight mechanism, operation stability is improved greatly, stress of a lead screw is reduced, and the durability of the scanner is improved.
Description
Technical field
The invention belongs to radiation safety detection technique field, particularly relate to a kind of for the safety detection of public place to people, when by security check passage, the open side type X ray backward scattering human-body safety scanner of various metal below people's clothes entrained by body surface and nonmetal contraband goods can be detected fast.
Background technology
X ray backward scattering human-body safety scanner is based on compton backscattering image-forming principle, the non-coherent scattering effect that equipment utilization X ray and matter interaction occur, the free electron of incident x-ray photons and tested substance collides, the portion of energy of photon passes to free electron to be made it to become recoil electron, himself off-energy also changes direction and becomes scattered photon, the x-ray photon of detected material scattering collected by the special scattering detector of equipment, generates the scattered x-ray image of checking matter.
Due to X ray Compton back scattering tomography can highlight by low-Z element form containing enriching carbon, hydrogen, oxygen, nitrogen composition, density has larger material, particularly very effective to detection thin layer shape dangerous substance, so the nonmetal contraband goodss such as sintex, plastic bomb, explosive and drugs that human body carries can be detected.
Back scattering X-ray checkout equipment adopts flying-spot scanner image-forming principle within the unit interval, checking matter only has any to accept radiation exposure, the single of equipment check dosage and leakage agent dose rate extremely low, normally 1/10th of legacy equipment is even lower, to human body fanout free region.
Detector and the X ray emissive source of back scattering X-ray checkout facility are positioned at the same side, make the simple for structure compact of equipment, can implement the hidden inspection to detected material.
When ray energy can not penetrate detected material, back scattering X-ray checkout equipment can implement bilateral inspection to checking matter, within the shortest time, obtain full figure, convenient and swift.
Current X ray security scanner utilizes flying-spot scanner mechanism flying-spot scanner to be divided into horizontal scanning and vertical sweep bidimensional module, but existing defects in vertical sweep process, due to the height limitation of scanner, namely often there will be scanning height inadequate, also there will be dead band in the bottom of scanning simultaneously, also just cannot to scan by the head of scanning person and foot when insufficient height with regard to saying, in order to address the aforementioned drawbacks, way general is at present that the short transverse by scanner extends, coordinate scanning person's standing platform simultaneously, the scanning of whole body can be carried out like this, the defect adopting this technical scheme to exist is exactly the volume greatly increasing scanner, too increase manufacturing cost simultaneously, transportation cost etc., in addition, some scanners increase flying-spot scanner mechanism and in scanning process, swing up and down certain angle, the whole height of reduction scanner that like this can be suitable, but still can not thoroughly solve.
Summary of the invention
The present invention provides a kind of volume little, stable for solving in known technology the technical matters that exists, substantially increases linear sweep limit, ensures the X ray backward scattering human-body safety scanner of scanning linearity.
The technical scheme that the present invention takes for the technical matters existed in solution known technology is:
A kind of open side type X ray backward scattering human-body safety scanner, comprise chassis, column, electrical arrangement frame, power distribution cabinet, scanning platform and the flying-spot scanner mechanism be arranged on surface sweeping platform and signal sensor, described scanning platform is provided with the tilting mechanism driving flying-spot scanner mechanism to swing up and down; It is characterized in that: described column is arranged on chassis by securing member, inside described column, be provided with cant board, described column is provided with the elevating mechanism of driving side riser oscilaltion; Cant board connects tilting mechanism by back shaft, and power distribution cabinet is arranged on the offside of column, and is connected with chassis by securing member.
The present invention can also adopt following technical measures:
The anglec of rotation of the tilting mechanism that described driving flying-spot scanner mechanism swings up and down is-60 ° ~ 60 °.
Described elevating mechanism comprises being arranged on inside column and is provided with the first line slideway, on described cant board, corresponding first line slideway position is fitted with the first linear slider that linearly guide rail slides up and down, described cant board is connected with the drive unit that driving side riser slides up and down along the first line slideway, described drive unit mainly comprises drive motor, reductor, leading screw and the feed screw nut coordinated with leading screw, wherein said drive motor and reductor are positioned at the top of column, the output terminal of described reductor connects driving leading screw, described feed screw nut is packed on cant board, described leading screw is vertically mounted on column, in the upper end of the first line slideway and bottom, correspondence is provided with upper limit travel switch and lower limit travel switch respectively.
Described tilting mechanism comprises the swing riser connecting flying-spot scanner mechanism, described swing riser is arranged on cant board by back shaft, described swing riser is provided with wobble gear, described wobble gear engagement transition gear, described transition gear engagement driving wheel, described driving wheel connects reductor, and reductor connects drive motor, and described drive motor and reductor are mounted on cant board.
Described column is also provided with balance weight mechanism, described balance weight mechanism mainly comprises wheel bracket, guide wheel, guide chain and balancing weight, wherein said wheel bracket is fixedly mounted on the top of column, wheel bracket is provided with two guide wheels, described guide wheel is fitted with guide chain, at the end connection side riser of the described guide chain in the inner side of column, connect balancing weight in the end of the described guide chain in the outside of column; In the outside of column, corresponding balancing weight position is provided with the second line slideway, and described balancing weight is provided with the second linear slider coordinated with the second line slideway.
The above-mentioned electrical arrangement frame of the hinged installation of rear side of described power distribution cabinet.
The advantage that the present invention has and good effect are: because the present invention adopts technique scheme, make structure of the present invention compacter, reduce the overall volume size of scanner, reduce and take up an area space and overall weight; The present invention, while horizontal lifting, swings up and down, and the scope of scanning expands greatly, in addition the design of balance weight mechanism, substantially increases the stability of operation, reduces the stressed of leading screw, improves the permanance of equipment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is A direction view in Fig. 1;
Fig. 4 is B direction view in Fig. 1;
Fig. 5 is C direction view in Fig. 1.
In figure: 1, chassis; 2, column; 2-1, cant board; 3, electrical arrangement frame; 4, power distribution cabinet; 5, surface sweeping platform; 6, flying-spot scanner mechanism; 7, tilting mechanism; 7-1, swing riser; 7-2, back shaft; 7-3, wobble gear; 7-4, transition gear; 7-5, driving wheel; 7-6, reductor; 7-7, drive motor; 8, elevating mechanism; 8-1, the first line slideway; 8-2, the first linear slider; 8-3, drive unit; 8-30, drive motor; 8-31, reductor; 8-32, leading screw; 8-33, feed screw nut; 8-4, upper limit travel switch; 8-5, lower limit travel switch; 9, balance weight mechanism; 9-1, wheel bracket; 9-2, guide wheel; 9-3, guide chain; 9-4, balancing weight; 9-5, the second line slideway; 9-6, the second linear slider; 10, signal sensor.
Embodiment
For summary of the invention of the present invention, Characteristic can be understood further, especially exemplified by following examples, and accompanying drawing is coordinated to be described in detail as follows:
Refer to Fig. 1 to Fig. 5, a kind of X ray backward scattering human-body safety scanner, comprise chassis 1, column 2, electrical arrangement frame 3, power distribution cabinet 4, surface sweeping platform 5 and the flying-spot scanner mechanism 6 be arranged on surface sweeping platform and signal sensor 10, flying-spot scanner mechanism belongs to prior art, its principle of work does not repeat at this, described scanning platform is also provided with the tilting mechanism 7 driving the upper and lower rotary oscillation of flying-spot scanner mechanism; Column by securing member respectively symmetry be arranged on chassis 1, inside described column, be provided with cant board 2-1, described column is provided with the elevating mechanism of driving side riser 2-1 oscilaltion; Cant board connects tilting mechanism 7 by back shaft, is arranged on the offside of column, and is connected with chassis by securing member at power distribution cabinet.
The anglec of rotation of the tilting mechanism 7 of the upper and lower rotary oscillation of described driving flying-spot scanner mechanism is-60 ° ~ 60 °
Described elevating mechanism 8 comprises being arranged on inside column and is provided with the first line slideway 8-1, on described cant board 2-1, corresponding first line slideway position is fitted with the first linear slider 8-2 that linearly guide rail slides up and down, described cant board 2-1 is connected with the drive unit 8-3 that driving side riser 2-1 slides up and down along the first line slideway, described drive unit mainly comprises drive motor 8-30, reductor 8-31, leading screw 8-32 and the feed screw nut 8-33 coordinated with leading screw, wherein said drive motor 8-30 and reductor 8-31 is positioned at the top of column 2, the output terminal of described reductor 8-31 drives leading screw 8-32, described feed screw nut 8-33 is packed on cant board 2-1, described leading screw is vertically mounted on column 2, in the upper end of the first line slideway and bottom, correspondence is provided with upper limit travel switch 8-4 and lower limit travel switch 8-5 respectively.
Described tilting mechanism 7 comprises the swing riser 7-1 connecting flying-spot scanner mechanism 6, and described swing riser is arranged on cant board 2-1 by back shaft 7-2, and the lower end of described swing riser 7-1 connects scanning platform 5; Described swing riser is provided with wobble gear 7-3, described wobble gear engagement transition gear 7-4, described transition gear engagement driving wheel 7-5, described driving wheel connects reductor 7-6, reductor connects drive motor 7-7, and described drive motor is mounted on cant board 2-1.
Described column is also provided with balance weight mechanism 9, and this breeding mechanism mainly alleviates leading screw load, improves the stability that equipment runs; Described balance weight mechanism 9 mainly comprises wheel bracket 9-1, guide wheel 9-2, guide chain 9-3 and balancing weight 9-4, wherein said wheel bracket 9-1 is fixedly mounted on the top of column 2, wheel bracket 9-1 is provided with two guide wheel 9-2, described guide wheel is fitted with guide chain 9-3, at the end connection side riser 2-1 of the described guide chain 9-3 in the inner side of column 2, connect balancing weight 9-4 in the end of the described guide chain 9-3 in the outside of column 2; In the outside of column, corresponding balancing weight position is provided with the second line slideway 9-5, and described balancing weight 9-4 is provided with the second linear slider 9-6 coordinated with the second line slideway.
The above-mentioned electrical arrangement frame 3 of the hinged installation of rear side of described power distribution cabinet.The volume size of power distribution cabinet can be reduced so further, improve integral space utilization ratio.
Adopt technique scheme, make structure of the present invention compacter, reduce the overall volume size of scanner; Tilting mechanism of the present invention and elevating mechanism are synchronized with the movement, and namely while horizontal lifting, swing up and down, and the scope of scanning expands greatly; The balance weight mechanism set up in addition improves the stability that scanner runs, and reduces the stressed of leading screw, improves the permanance of equipment, ensure that scanning linearity simultaneously.
The above is only to preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (6)
1. an open side type X ray backward scattering human-body safety scanner, comprise chassis, column, electrical arrangement frame, power distribution cabinet, scanning platform and the flying-spot scanner mechanism be arranged on surface sweeping platform and signal sensor, described scanning platform is provided with the tilting mechanism driving flying-spot scanner mechanism to swing up and down; It is characterized in that: described column is arranged on chassis by securing member, inside described column, be provided with cant board, described column is provided with the elevating mechanism of driving side riser oscilaltion; Cant board connects tilting mechanism by back shaft, and power distribution cabinet is arranged on the offside of column, and is connected with chassis by securing member.
2. open side type X ray backward scattering human-body safety scanner according to claim 1, is characterized in that: the anglec of rotation of the tilting mechanism that described driving flying-spot scanner mechanism swings up and down is-60 ° ~ 60 °.
3. open side type X ray backward scattering human-body safety scanner according to claim 1, it is characterized in that: described elevating mechanism comprises being arranged on inside column and is provided with the first line slideway, on described cant board, corresponding first line slideway position is fitted with the first linear slider that linearly guide rail slides up and down, described cant board is connected with the drive unit that driving side riser slides up and down along the first line slideway, described drive unit mainly comprises drive motor, reductor, leading screw and the feed screw nut coordinated with leading screw, wherein said drive motor and reductor are positioned at the top of column, the output terminal of described reductor connects driving leading screw, described feed screw nut is packed on cant board, described leading screw is vertically mounted on column, in the upper end of the first line slideway and bottom, correspondence is provided with upper limit travel switch and lower limit travel switch respectively.
4. open side type X ray backward scattering human-body safety scanner according to claim 1, it is characterized in that: described tilting mechanism comprises the swing riser connecting flying-spot scanner mechanism, described swing riser is arranged on cant board by back shaft, described swing riser is provided with wobble gear, described wobble gear engagement transition gear, described transition gear engagement driving wheel, described driving wheel connects reductor, reductor connects drive motor, and described drive motor and reductor are mounted on cant board.
5. open side type X ray backward scattering human-body safety scanner according to claim 1, it is characterized in that: described column is also provided with balance weight mechanism, described balance weight mechanism mainly comprises wheel bracket, guide wheel, guide chain and balancing weight, wherein said wheel bracket is fixedly mounted on the top of column, wheel bracket is provided with two guide wheels, described guide wheel is fitted with guide chain, at the end connection side riser of the described guide chain in the inner side of column, connect balancing weight in the end of the described guide chain in the outside of column; In the outside of column, corresponding balancing weight position is provided with the second line slideway, and described balancing weight is provided with the second linear slider coordinated with the second line slideway.
6., according to the arbitrary described open side type X ray backward scattering human-body safety scanner of claim 1 to 5, it is characterized in that: the above-mentioned electrical arrangement frame of the hinged installation of rear side of described power distribution cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410623755.7A CN104316970A (en) | 2014-11-07 | 2014-11-07 | Single-column X-ray back scattering human body safety scanner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410623755.7A CN104316970A (en) | 2014-11-07 | 2014-11-07 | Single-column X-ray back scattering human body safety scanner |
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| CN104316970A true CN104316970A (en) | 2015-01-28 |
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| CN201410623755.7A Pending CN104316970A (en) | 2014-11-07 | 2014-11-07 | Single-column X-ray back scattering human body safety scanner |
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Cited By (3)
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| CN105630655A (en) * | 2015-12-17 | 2016-06-01 | 小米科技有限责任公司 | Charging connection prompting method and apparatus |
| CN107854779A (en) * | 2017-11-22 | 2018-03-30 | 中国科学院上海应用物理研究所 | A kind of radiotherapy robot therapeutic bed of SCARA structures |
| CN109907771A (en) * | 2019-03-25 | 2019-06-21 | 东软医疗系统股份有限公司 | X-ray photograph system and its lift drive mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105630655A (en) * | 2015-12-17 | 2016-06-01 | 小米科技有限责任公司 | Charging connection prompting method and apparatus |
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| CN107854779A (en) * | 2017-11-22 | 2018-03-30 | 中国科学院上海应用物理研究所 | A kind of radiotherapy robot therapeutic bed of SCARA structures |
| CN109907771A (en) * | 2019-03-25 | 2019-06-21 | 东软医疗系统股份有限公司 | X-ray photograph system and its lift drive mechanism |
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