CN2117131U - Fingerprint rapid displaying apparatus on scene - Google Patents
Fingerprint rapid displaying apparatus on scene Download PDFInfo
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- CN2117131U CN2117131U CN92206960U CN92206960U CN2117131U CN 2117131 U CN2117131 U CN 2117131U CN 92206960 U CN92206960 U CN 92206960U CN 92206960 U CN92206960 U CN 92206960U CN 2117131 U CN2117131 U CN 2117131U
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- medicinal liquid
- fixed
- heater
- housing
- support
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Abstract
The utility model relates to a fingerprint rapid displaying apparatus on scene mainly used in criminal case reconnaissance scene to rapidly display the fingerprints on the surfaces of a big object or a complex shaped object. The utility model comprises an automatic injector, a gasification displaying device of the physic liquor, and a gas pump. The automatic injector comprises a case, an air compressing tube, a gear wheel, a gear rack, an escape fork, a handle, a lever, an electromagnet, and an electronic controller. The gasification displaying device of the physic liquor comprises a physic liquor bottle, a cover body, a physic liquor tray, and a PTC electric heater. The utility model has the advantages of small size, light weight, convenient operation, convenient use, stable quality, big fingerprint searching area, big recovery ratio of vestige and material evidence, and rapid fingerprint displaying.
Description
This utility model relates to the quick visualizer of a kind of fingerprint on site.Be applicable to the criminal investigation technology.
At present, in criminal scene prospecting, often need to judge object and position thereof that criminal's hands may touch.The direction of illumination that changes commonly used is sought fingerprint repeatedly, or with magnifier observation repeatedly.Reuse brush appearing method manifests fingerprint after finding fingerprint, and the brush appearing method requires operator that rich experience and skilled operant skill are arranged.The shortcoming of above-mentioned fingerprint prospecting process for show is that labor intensity is big, and efficient is low, and general personnel are difficult to grasp.
The purpose of this utility model provides a kind of quick visualizer of fingerprint on site with manual and automatic function, it is little that it has a volume, in light weight, characteristics such as easy for operation, it can also improve the extraction ratio of fingerprint trace material evidence simultaneously, enlarge the search face of vestige, thereby increase work efficiency and work quality.
The purpose of this utility model is to realize like this, it is made up of automatic fluid injection device and medicinal liquid gasification visualization means, the automatic fluid injection device is by housing, pneumatic tube, gear, tooth bar, escape wheel, escapement lever, handgrip, lever, electric magnet and electronic controller are formed, pneumatic tube is by piston and piston rod, spring, be with graduated cylindrical shell to form, pneumatic tube is fixed on the top of housing 1, piston rod is linked together by gusset piece 9 and tooth bar 34, gear 11 and tooth bar 34 engagements, gear 11 welds together with escape wheel 13, be fixed on the housing 1 by axle 12, escapement lever 32, lever 33 is fixedly connected with escapement fork shaft 23, lever 33 other ends are fixed a permanent magnet 37, permanent magnet 37 is unshakable in one's determination relative with electric magnet 35, escapement fork shaft 23 is fixed by locating support, and its end stretches out housing 1, and handgrip 19 is housed, its other end is with spring 25, and by nut 24 spring 25 is pressed on the lower platen 29.
Medicinal liquid gasification visualization means is made up of medicinal liquid bottle 42, heater 54, heater support, medicinal liquid disk 55, cover body 56, the medicinal liquid bottle is fixed on the cover body outside, medicinal liquid disk 55 and heater 54 are fixed by heater support, and cover body is the hexahedron with an inclined-plane, and its big is opening surface.
The electronic controller of automatic fluid injection device is made up of oscillating circuit and relay, and be 3-80 second the cycle of oscillation of oscillating circuit, the output control relay of oscillating circuit, relay control electric magnet.
For the concentrated object surface that slowly sprays to of the vapours that makes medicinal liquid, improve and manifest speed, have additional air pump, air pump is made up of direct current generator 57, eccentric 59, connection framework 60, leather cup 64, the pump housing 65, motor 57 connects framework 60 by eccentric 59 with " day " font and links, connecting framework 60 connects with leather cup 64 by power transmission screw 61, leather cup 64 tightly is enclosed within on the pump housing 65, the pump housing 65 is provided with exhaust valve 69, air inlet valve 68, exhaust valve 69 is connected with tube nozzle 73 in being located at cover body 56 by appendix 71.
Below in conjunction with drawings and Examples this utility model is further described:
Fig. 1 is a shape assumption diagram of the present utility model.
Fig. 2 is the profile of pneumatic tube and escape wheel.
Fig. 3 is impregnator guidance panel figure.
Fig. 4,5 is escapement lever, escape wheel structural representation.
Fig. 6,7 is a medicinal liquid gasification installation structural representation.
Fig. 8,9 is the air pump structural representation.
Figure 10 is electronic controller and electric heater circuit theory diagrams.
By the figure illustrated embodiment as can be known, it is by the automatic fluid injection device, medicinal liquid gasification visualization means and air pump three parts are formed, the automatic fluid injection device is by housing 1, pneumatic tube 4, gear 11, tooth bar 34, escape wheel 13, escapement lever 32, handgrip 19, lever 33, electric magnet 35 and electronic controller are formed, pneumatic tube is by piston and piston rod 5, spring 26, be with graduated cylindrical shell to form, pneumatic tube is fixed on the top of housing 1, piston rod 5 is linked together by gusset piece 9 and tooth bar 34, gear 11 and tooth bar 34 engagements, gear 11 welds together with escape wheel 13, be fixed on the housing 1 by axle 12, escapement lever 32, lever 33 welds together with escapement fork shaft 23, lever 33 other ends are fixed a permanent magnet 37, and permanent magnet 37 is unshakable in one's determination relative with electric magnet 35.Escapement fork shaft 23 is fixed by locating support, and its end stretches out housing 1, and handgrip 19 is housed, and its other end is with spring 25, and by nut 24 spring 25 is pressed on the lower platen 29.
The locating support of escapement fork shaft 33 is by tubulose positioning pillars 28, last lower platen 27,29 is formed, positioning pillars 28 and top board 27 are fixed on the housing 1 by screw 16, and lower platen 29 is fixed on the positioning pillars 28 by screw 30, and the axis hole on escapement fork shaft 23 and the last lower platen 27,29 is for movingly.The effect of locating support is a relative position of adjusting escapement lever and escape wheel.
Medicinal liquid gasification visualization means is made up of medicinal liquid bottle 42, heater 54, heater support, medicinal liquid disk 55, cover body 56, the medicinal liquid bottle is fixed on the cover body outside, medicinal liquid disk 55 and heater 54 are fixed by heater support, cover body is the hexahedron with an inclined-plane, its big is opening surface, opening surface is adjusted openings of sizes by removable cover, so that the liquid steam ejection.
Heater support is a travel(l)ing rest, it is made up of support 51, runing rest 52, runing rest 52 is fixed on the support 51, support 51 is a channel steel shape, be fixed on the cover body 56 by screw 50, heater 54 places on the heater holder 53, and medicinal liquid disk 55 places on the heater 54, by screw 49 they is fixed on the runing rest 52 then.Heater adopts the PTC electrical heating elements.Travel(l)ing rest 52 can rotate around X-axis ± and 45 ℃, support 51 can rotate around Y-axis ± and 45 °, can manifest the inclination angle that the residing different spatial of face is adjusted medicinal liquid disk 55 according to object like this, from dish, flow out before the medicinal liquid gasification when preventing to manifest.
Automatic fluid injection device and medicinal liquid gasification visualization means are linked together by connecting rack 3,38 and spindle nut 39, and two parts can relatively rotate 90 ° around spindle nut 39.
The electronic controller of automatic fluid injection device is formed (referring to Figure 10) by oscillating circuit and relay J.Oscillating circuit is made up of unijunction transistor BG, capacitor C, R1-2, W, and be 3-80 second cycle of oscillation, adjusted by potentiometer W.Its operation principle is as follows: after the energized, capacitor C charging is charged to BG conducting behind the certain value, C discharge simultaneously, and J work, electric magnet 35 work, C is discharged to a certain degree, and BG ends, and C charges again, thereby goes round and begins again.R3, LED are display circuit among the figure, and T is the PTC heating, and D is a motor.
By Fig. 8,9 as can be known, air pump is made up of direct current generator 57, eccentric 59, connection framework 60, leather cup 64, the pump housing 65, motor 57 connects framework 60 by eccentric 59 with " day " font and links, connecting framework 60 connects with leather cup 64 by power transmission screw 61, leather cup 64 tightly is enclosed within on the pump housing 65, the pump housing 65 is provided with exhaust valve 69, air inlet valve 68, and exhaust valve 69 is connected with tube nozzle 73 in being located at cover body 56 by appendix 71.
Other index is as follows among Fig. 1-9: automatic fluid injection device part: 2 base plates, 6 after-poppets, 7 fore-stocks, 8 screws, 10 nuts, 14 tooth bar position-limited racks, 15 nuts, 17,21 supply sockets, 18 selection of time are turned round, 20 display lamps, 22 nuts, 31 heater power source plugs, 36 screws.Medicinal liquid gasification visualization means part: 40 bottle racks, 41 screws, 43 bottle caps, 44 metal tubes, 48 screws.Air pump part: 58 motor reels, 62,63 nuts, 66 rubber cushions, 67 base plates, 70,72 pipe joints, 74 choke valves, 75 electric machine supports.
Operation principle of the present utility model is as follows:
1, manually fluid injection:
Handgrip 19 is mentioned, escapement lever and escape wheel clutch, left hand pulling gusset piece 9 drives tooth bar 34, piston and piston rod pressuring spring 26 simultaneously and also outwards moves a certain distance.Unclamp handgrip 19, elastic force by spring 25 resets escapement fork shaft 23, escapement lever and escape wheel engagement, at this moment permanent magnet 37 suctions (this moment, electric magnet was not worked) on the iron core of electric magnet move handgrip 19 counterclockwise, whenever move once, piston advances 1/4 lattice, and piston is pressed into the medicinal liquid bottle with air, and the medicinal liquid in the medicinal liquid bottle is dropwise added medicinal liquid disk.Heater is with the medicinal liquid heating and gasifying, at this moment cover body 56 open surfaces are aimed at the object surface and slowly move, make medicinal liquid gas adhere to its surface, can observe directly the object surface and have or not fingerprint trace this moment, fingerprint can be fixed after a while, the local medicinal liquid of no fingerprint vapors away.
2, automatic fluid injection:
Connect the power supply of electronic controller, the work of electric magnet interruption, during work of electromagnet, permanent magnet 37 is repelled in the electromagnet core magnetization, and its action is with manually to move the handgrip effect the same.
The utility model has the advantages that volume is little, in light weight, easy for operation, to manifesting rapidly of fingerprint, steady quality can improve the search face of fingerprint on site significantly, improve the recovery rate of trace evidence, for disclosing criminal, confirming that criminal provides reliable and strong technical guarantee.
Claims (6)
1, the quick visualizer of a kind of fingerprint on site, it is characterized in that it is made up of automatic fluid injection device and medicinal liquid gasification visualization means, the automatic fluid injection device is by housing, pneumatic tube, gear, tooth bar, escape wheel, escapement lever, handgrip, lever, electric magnet and electronic controller are formed, pneumatic tube is by piston and piston rod, spring, be with graduated cylindrical shell to form, pneumatic tube is fixed on the top of housing 1, piston rod is linked together by gusset piece 9 and tooth bar 34, gear 11 and tooth bar 34 engagements, gear 11 welds together with escape wheel 13, be fixed on the housing 1 by axle 12, escapement lever 32, lever 33 is fixedly connected with escapement fork shaft 23, lever 33 other ends are fixed a permanent magnet 37, permanent magnet 37 is unshakable in one's determination relative with electric magnet 35, and escapement fork shaft 23 is fixed by locating support, and its end stretches out housing 1, and handgrip 19 is housed, its other end is with spring 25, and by nut 24 spring 25 is pressed on the lower platen 29
Medicinal liquid gasification visualization means is made up of medicinal liquid bottle 42, heater 54, heater support, medicinal liquid disk 55, cover body 56, the medicinal liquid bottle is fixed on the cover body outside, and medicinal liquid disk 55 and heater 54 are fixed by heater support, and cover body is the hexahedron with an inclined-plane, its big is opening surface
Cover body 56 is installed on the housing 1 by support, and pneumatic tube 4 is communicated with medicinal liquid bottle 42 by airway 45, and catheter 46 1 ends insert in the medicinal liquid bottle, and its other end inserts in the conduit 47 of aiming at medicinal liquid disk 55.
2, visualizer according to claim 1 is characterized in that electronic controller is made up of oscillating circuit and relay, and be 3-80 second the cycle of oscillation of oscillating circuit, the output control relay of oscillating circuit, relay control electric magnet.
3, visualizer according to claim 2, the locating support that it is characterized in that escapement fork shaft 33 is by tubulose positioning pillars 28, last lower platen 27,29 is formed, positioning pillars 28 and top board 27 are fixed on the housing 1 by screw 16, lower platen 29 is fixed on the positioning pillars 28 by screw 30, and the axis hole on escapement fork shaft 23 and the last lower platen 27,29 is for movingly.
4, visualization means according to claim 3, it is characterized in that heater support is a travel(l)ing rest, it is made up of support 51, runing rest 52, runing rest 52 is fixed on the support 51, support 51 is a channel steel shape, is fixed on the cover body 56 by screw 50, and heater 54 places on the heater holder 53, medicinal liquid disk 55 places on the heater 54, by screw 49 they is fixed on the runing rest 52 then.
5, visualizer according to claim 4 is characterized in that heater adopts the PTC electrical heating elements.
6, visualizer according to claim 5, it is characterized in that medicinal liquid gasification visualization means is furnished with air pump, air pump is made up of direct current generator 57, eccentric 59, connection framework 60, leather cup 64, the pump housing 65, motor 57 connects framework 60 by eccentric 59 with " day " font and links, connecting framework 60 connects with leather cup 64 by power transmission screw 61, leather cup 64 tightly is enclosed within on the pump housing 65, the pump housing 65 is provided with exhaust valve 69, air inlet valve 68, exhaust valve 69 is connected with tube nozzle 73 in being located at cover body 56 by appendix 71.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92206960U CN2117131U (en) | 1992-04-11 | 1992-04-11 | Fingerprint rapid displaying apparatus on scene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92206960U CN2117131U (en) | 1992-04-11 | 1992-04-11 | Fingerprint rapid displaying apparatus on scene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2117131U true CN2117131U (en) | 1992-09-30 |
Family
ID=4952782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92206960U Pending CN2117131U (en) | 1992-04-11 | 1992-04-11 | Fingerprint rapid displaying apparatus on scene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2117131U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691457A (en) * | 2016-12-30 | 2017-05-24 | 胡振强 | Fingerprint developer |
| CN106865615A (en) * | 2017-02-14 | 2017-06-20 | 西南政法大学 | A kind of preparation of copper/chromium composite black nanometer powder and its finger mark process for show |
-
1992
- 1992-04-11 CN CN92206960U patent/CN2117131U/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691457A (en) * | 2016-12-30 | 2017-05-24 | 胡振强 | Fingerprint developer |
| CN106865615A (en) * | 2017-02-14 | 2017-06-20 | 西南政法大学 | A kind of preparation of copper/chromium composite black nanometer powder and its finger mark process for show |
| CN106865615B (en) * | 2017-02-14 | 2018-05-15 | 西南政法大学 | A kind of preparation of copper/chromium composite black nanometer powder and its finger mark process for show |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |