CN115797986A - Portable non-contact corpse fingerprint acquisition instrument - Google Patents

Abstract

The invention relates to the field of fingerprint collection, and discloses a portable non-contact cadaver fingerprint collection instrument, which effectively solves the problem that the conventional handle is fixedly connected with the fingerprint collection instrument, and the collection of fingerprints at far or higher positions is not easy to complete.

Description

Portable non-contact corpse fingerprint acquisition instrument

Technical Field

The invention belongs to the field of fingerprint acquisition, and particularly relates to a portable non-contact cadaver fingerprint acquisition instrument.

Background

The physical evidence technicians have conducted a plurality of case researches on the collection and extraction of the fingerprints of the corpses in different states such as putrefaction, shriveling, swelling, scorching and the like, and provide a plurality of fingerprint recovery treatment measures such as 'cleaning and decontamination', injection filling 'and the like, and a plurality of corpse fingerprint extraction methods such as' ink stamping and 'gummed paper extraction'. However, under the influence of various adverse factors such as the diversity, complexity and instability of the state of the fingerprints of the corpses, the rotten and stiff corpses which are inconvenient to move, the bad collecting environment, the complicated and fussy collecting procedure and the like, the technology for collecting the fingerprints of the corpses is always seriously lagged behind the development of other material evidence extracting technologies, the special equipment for collecting the fingerprints of the corpses is also seriously lacked, at present, the technology difficulty of the collection of the fingerprints of the corpses in practice is high, certain pollution and damage are caused to the corpses, the quality of the collected fingerprints is not high, the collection efficiency is low, and the real-time query is difficult to be carried out, so that the portable non-contact corpse fingerprint collecting equipment is provided, the non-contact collection of the fingerprints of the corpses can be carried out through the photoelectric technology and the computer image processing technology, the portable non-contact corpse fingerprint collecting equipment is formed by the fingerprint collecting instruments on the top of the handle and the handle, and the structured light machine, the camera lens, the illuminating lamp and the like are arranged in the fingerprint collecting instrument, but the following defects still exist:

because the handle is fixedly connected with the fingerprint acquisition instrument, the fingerprints at far or higher positions are not easy to be acquired because the elongation of the arm is limited.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the portable non-contact corpse fingerprint acquisition instrument, which effectively solves the problem that the existing handle is fixedly connected with the fingerprint acquisition instrument, and the fingerprint on a far position or a higher position is not easy to be acquired.

In order to achieve the purpose, the invention provides the following technical scheme: the portable non-contact cadaver fingerprint acquisition instrument comprises a handle, wherein a fingerprint acquisition instrument body is arranged above the handle, an acquisition lens is installed on one side of the fingerprint acquisition instrument body, a photographing button is installed on the handle and used for controlling the photographing of the acquisition lens, and a distance adjusting assembly is installed between the handle and the fingerprint acquisition instrument body;

the distance adjusting assembly comprises a moving seat installed on the top end of the handle, a sliding groove is formed in the top end of the moving seat, a sliding block is connected to the inner portion of the sliding groove in a sliding mode, a bottom plate is installed on the top end of the sliding block, the top of the bottom plate is located on the fingerprint acquisition instrument body, a first spring is installed on one side of the sliding block, the inner wall fixed connection of the sliding groove is installed at one end of the first spring, a magnetic block is installed on one side, close to the first spring, of the bottom plate, an electromagnet is arranged on one side, away from the bottom plate, of the magnetic block, the electromagnet is fixedly installed on the top end of the moving seat, equipment fixing assemblies are arranged on the two sides of the sliding groove, and a rotating assembly is installed between the bottom plate and the fingerprint acquisition instrument body.

Preferably, the electromagnet is electrically connected with a power supply and a sliding rheostat, one side of the movable seat is provided with an adjusting knob, the adjusting knob is used for adjusting the resistance value of the sliding rheostat, and the electromagnet is magnetically connected with the magnetic block.

Preferably, the fixed subassembly of equipment is seted up in the side channel of spout both sides including the symmetry, and the inside sliding connection of side channel has splint, and the joint tooth is installed to the equal equidistance in one side that two splint are close to each other, and the both sides equidistance that the slider is close to splint has seted up the joint tooth's socket, joint tooth and joint tooth's socket joint, and joint tooth's socket are all closely arranged, and the length of splint is the same with the length of spout.

Preferably, two logical groove has all been seted up to the one side that the side channel was kept away from each other, leads to the outside that the groove runs through to removing the seat, and the connecting plate is all installed to the one side that two splint were kept away from each other, and connecting plate and logical groove sliding connection have removed the seat's bilateral symmetry and have seted up the shifting chute, and the inside sliding connection of shifting chute has the movable block, and the outside of movable block is rotated and is connected with the dwang, and the one end of dwang is rotated with the bottom of connecting plate and is connected, and the second spring is installed to the bottom of movable block, the bottom of second spring and the interior diapire fixed connection of shifting chute.

Preferably, the bottom plate is installed at the bottom end of the moving block, the pull plate is installed between the two bottom plates, the pull plate is arranged in a U shape, and one side, far away from the end, of the pull plate is located on one side, far away from the electromagnet, of the moving seat.

Preferably, the rotating assembly comprises a rotating groove arranged inside the sliding block, the rotating block is connected to the rotating groove in a rotating mode, the rotating shaft is installed at the top end of the rotating block and is connected with the bottom plate in a rotating mode, the top plate is installed at the top end of the rotating shaft and is fixedly connected with the bottom end of the fingerprint acquisition instrument body, a positioning fixing unit is installed between the top plate and the bottom plate, and the lens protection unit is installed at one end, far away from the electromagnet, of the movable seat.

Preferably, the fixed unit in location is including the draw-in groove of seting up in bottom plate top both sides respectively symmetrically, and the sleeve is installed to the top both sides difference symmetry of roof, and the sleeve is located the top of draw-in groove, and telescopic inside sliding connection has the movable block, and the kelly is installed to the bottom of movable block, and the bottom of kelly runs through to the below of roof, and the kelly joint is in the inside of draw-in groove.

Preferably, the ejector pin is installed on the top of movable block, and the top of ejector pin runs through to telescopic top, installs the connecting rod between two ejector pins of homonymy, and the connecting rod is located telescopic top, and the third spring is installed on the top of movable block, the top and the telescopic interior roof fixed connection of third spring.

Preferably, camera lens protection unit is installed in removing the seat including the installation and is kept away from the swivel mount on electro-magnet one side top, and the outside of swivel mount is rotated and is connected with the turn round, installs the torsional spring between turn round and the swivel mount, and vertical board is installed on the top of turn round, and vertical board is close to one side of fingerprint collection appearance body and installs the protective sheath, and the protective sheath is in same water flat line with the collection camera lens, and the internal diameter of protective sheath is greater than the external diameter of collection camera lens, and the display screen is installed to one side that fingerprint collection appearance body was kept away from to vertical board, display screen and this body signal connection of fingerprint collection appearance.

Compared with the prior art, the invention has the beneficial effects that:

(1) According to the invention, after the electromagnet is electrified, attraction is generated on the magnetic block, so that the fingerprint acquisition instrument body is driven to move towards the electromagnet along the sliding groove, when the fingerprint acquisition instrument body moves to the position where the magnetic force of the electromagnet is balanced with the elastic force of the first spring, the fingerprint acquisition instrument body stops moving, the electromagnet is electrically connected with the sliding rheostat, and when the position of the fingerprint acquisition instrument body is adjusted, the adjusting knob is slowly rotated, so that the magnetic force of the electromagnet is slowly increased, the fingerprint acquisition instrument body is driven to slowly move, the position is conveniently adjusted, and fingerprints at higher and farther positions are conveniently acquired;

(2) According to the fingerprint acquisition instrument, the pulling plate is pushed to move upwards before position adjustment, the connecting plate and the clamping plate are driven to move towards one side far away from the sliding block through the rotating rod, so that the clamping teeth and the clamping tooth grooves are separated from clamping, the movement of the fingerprint acquisition instrument body is facilitated, when the fingerprint acquisition instrument is fixed, the pulling plate is loosened to enable the clamping plate to move back under the elastic force action of the second spring, and the clamping teeth and the clamping tooth grooves are tightly arranged, so that the sliding blocks in different positions are conveniently clamped, the fingerprint acquisition instrument body is fixedly clamped and fixed, and the fingerprint acquisition instrument body is convenient to perform fingerprint acquisition.

(3) According to the invention, after the use is finished, the clamping rod is moved upwards to be separated from the clamping connection with the clamping groove on the bottom plate, the fingerprint acquisition instrument body is rotated by one hundred eighty degrees, so that the acquisition lens on the fingerprint acquisition instrument body faces the vertical plate, then the adjusting knob is slowly rotated, and at the moment, under the elastic force action of the first spring, the fingerprint acquisition instrument body is slowly moved back towards the vertical plate until the acquisition lens enters the protective sleeve, so that the surface of the acquisition lens is conveniently protected, and the condition that foreign matters are adhered to the surface of the acquisition lens to influence the subsequent use when the acquisition lens is not used is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of a portable non-contact cadaver fingerprint acquisition instrument of the present invention;

FIG. 2 is a schematic view of a distance adjustment assembly according to the present invention;

FIG. 3 is a schematic view of the fixing assembly of the present invention;

FIG. 4 is a schematic view of a clamping tooth and a clamping tooth socket according to the present invention;

FIG. 5 is a schematic view of a rotating assembly according to the present invention;

FIG. 6 is a schematic view of a positioning and fixing unit according to the present invention;

FIG. 7 is a schematic view of a lens protection unit according to the present invention;

in the figure: 1. a handle; 2. a fingerprint acquisition instrument body; 3. acquiring a lens; 4. a distance adjustment assembly; 401. a movable seat; 402. a chute; 403. a slider; 404. a base plate; 405. an electromagnet; 406. a magnetic block; 407. adjusting a knob; 408. a first spring; 5. a device securing assembly; 501. a side groove; 502. a through groove; 503. a splint; 504. a connecting plate; 505. a moving groove; 506. a moving block; 507. rotating the rod; 508. a second spring; 509. a bottom plate; 510. pulling a plate; 511. clamping the teeth; 512. clamping tooth grooves; 6. a rotating assembly; 601. rotating the groove; 602. rotating the block; 603. a rotating shaft; 604. a top plate; 605. a positioning and fixing unit; 6051. a card slot; 6052. a sleeve; 6053. a movable block; 6054. a clamping rod; 6055. a top rod; 6056. a third spring; 6057. a connecting rod; 606. a lens protection unit; 6061. rotating; 6062. turning the head; 6063. a vertical plate; 6064. a protective sleeve; 6065. and a display screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the first embodiment, as shown in fig. 1 to 7, the fingerprint acquisition device comprises a handle 1, a fingerprint acquisition device body 2 is arranged above the handle 1, an acquisition lens 3 is arranged on one side of the fingerprint acquisition device body 2, a photographing button is arranged on the handle 1 and used for controlling the photographing of the acquisition lens 3, and a distance adjusting component 4 is arranged between the handle 1 and the fingerprint acquisition device body 2;

the distance adjusting assembly 4 comprises a moving seat 401 mounted on the top end of the handle 1, a sliding groove 402 is formed in the top end of the moving seat 401, a sliding block 403 is connected to the inside of the sliding groove 402 in a sliding mode, a bottom plate 404 is mounted on the top end of the sliding block 403, the fingerprint acquisition instrument body 2 is arranged above the bottom plate 404, a first spring 408 is mounted on one side of the sliding block 403, an inner wall of the sliding groove 402 is fixedly connected to one end of the first spring 408, a magnetic block 406 is mounted on one side, close to the first spring 408, of the bottom plate 404, an electromagnet 405 is arranged on one side, far away from the bottom plate 404, the electromagnet 405 is fixedly mounted on the top end of one end of the moving seat 401, equipment fixing assemblies 5 are arranged on two sides of the sliding groove 402, a rotating assembly 6 is mounted between the bottom plate 404 and the fingerprint acquisition instrument body 2, the electromagnet 405 is electrically connected with a power supply and a sliding rheostat, an adjusting knob 407 is mounted on one side of the moving seat 401, the adjusting knob 407 is used for adjusting the resistance of the sliding rheostat, the electromagnet 405 is magnetically connected with the magnetic block 406, the electromagnet 405 after the electromagnet is powered on, attraction is powered on the electromagnet 406, the electromagnet 405, the electromagnet is driven to slowly move the fingerprint acquisition instrument body 2, the fingerprint acquisition instrument body 405, the fingerprint acquisition instrument body can be conveniently, and slowly move, the fingerprint acquisition position of the fingerprint acquisition instrument body 405, and the fingerprint can be conveniently, and the fingerprint acquisition instrument body 405, the fingerprint can be slowly moved, the fingerprint acquisition instrument body 405, and the fingerprint can be conveniently, the fingerprint acquisition instrument body can be conveniently, and the fingerprint acquisition instrument can be conveniently, and slowly moved when the fingerprint acquisition instrument body can be conveniently when the fingerprint acquisition position of the fingerprint acquisition instrument body 405 is moved, the fingerprint acquisition instrument body 405, the fingerprint acquisition instrument body can be slowly.

The device fixing component 5 comprises side grooves 501 symmetrically arranged on two sides of a sliding groove 402, clamping plates 503 are slidably connected inside the side grooves 501, clamping teeth 511 are arranged on one sides of the two clamping plates 503 close to each other at equal intervals, clamping tooth grooves 512 are arranged on two sides of a sliding block 403 close to the clamping plates 503 at equal intervals, the clamping teeth 511 are clamped with the clamping tooth grooves 512, the clamping teeth 511 and the clamping tooth grooves 512 are closely arranged, the length of the clamping plates 503 is the same as that of the sliding groove 402, through grooves 502 are arranged on one sides of the two side grooves 501 far away from each other, the through grooves 502 penetrate to the outer side of a movable seat 401, connecting plates 504 are arranged on one sides of the two clamping plates 503 far away from each other, the connecting plates 504 are slidably connected with the through grooves 502, movable grooves 505 are symmetrically arranged on two sides of the movable seat 401, movable blocks 506 are slidably connected inside the movable grooves 505, rotating rods 507 are rotatably connected on the outer sides of the movable blocks 506, and one ends of the rotating rods 507 are rotatably connected with the bottom ends of the connecting plates 504, a second spring 508 is arranged at the bottom end of the moving block 506, the bottom end of the second spring 508 is fixedly connected with the inner bottom wall of the moving groove 505, a bottom plate 509 is arranged at the bottom end of the moving block 506, a pulling plate 510 is arranged between the two bottom plates 509, the pulling plate 510 is arranged in a U shape, one side of the pulling plate 510, which is far away from the end, is positioned at one side of the moving seat 401, which is far away from the electromagnet 405, before the position adjustment, the pulling plate 510 is pushed to move upwards, the rotating rod 507 drives the connecting plate 504 and the clamping plate 503 to move towards the side far away from the sliding block 403, so that the clamping teeth 511 and the clamping tooth grooves 512 are separated from clamping, and the movement of the fingerprint acquisition instrument body 2 is facilitated, when the fixing is performed, the pulling plate 510 is loosened to enable the clamping plate 503 to move back under the elastic force of the second spring 508, and the clamping teeth 511 and the clamping tooth grooves 512 are tightly arranged, so that the sliding blocks 403 at different positions can be clamped conveniently, thereby play fixed centre gripping fixed action to fingerprint collection appearance body 2, make things convenient for fingerprint collection appearance body 2 to carry out fingerprint collection.

The rotating component 6 comprises a rotating groove 601 arranged inside the sliding block 403, the rotating groove 601 is connected with a rotating block 602 in a rotating manner, the top end of the rotating block 602 is provided with a rotating shaft 603, the rotating shaft 603 is connected with a bottom plate 404 in a rotating manner, the top end of the rotating shaft 603 is provided with a top plate 604, the top end of the top plate 604 is fixedly connected with the bottom end of the fingerprint acquisition instrument body 2, a positioning fixing unit 605 is arranged between the top plate 604 and the bottom plate 404, one end of the moving seat 401 far away from the electromagnet 405 is provided with a lens protection unit 606, the positioning fixing unit 605 comprises clamping grooves 6051 symmetrically arranged on two sides of the top end of the bottom plate 404 respectively, two sides of the top end of the top plate 604 are respectively provided with a sleeve 6052 symmetrically, the sleeve 6052 is positioned above the clamping groove 6051, the inside of the sleeve 6052 is connected with a moving block 6053 in a sliding manner, the bottom end of the moving block 6053 is provided with a clamping rod 6054, the bottom end of the clamping rod 6054 penetrates to the bottom of the top plate 604, and the clamping rod 6054 is clamped inside the clamping groove 51, a top rod 6055 is installed at the top end of a movable block 6053, the top end of the top rod 6055 penetrates to the top end of a sleeve 6052, a connecting rod 6057 is installed between two top rods 6055 on the same side, the connecting rod 6057 is positioned above the sleeve 6052, a third spring 6056 is installed at the top end of the movable block 6053, the top end of the third spring 6056 is fixedly connected with the inner top wall of the sleeve 6052, a lens protection unit 606 comprises a swivel seat 6061 installed at the top end of one side of the movable seat 401 away from the electromagnet 405, the outer side of the swivel seat 6061 is rotatably connected with a swivel head 6062, a torsion spring is installed between the swivel head 6062 and the swivel seat 6061, a vertical plate 6063 is installed at the top end of the swivel head 6062, a protective sleeve 6064 is installed at one side of the vertical plate 6063 close to the fingerprint acquisition instrument body 2, the protective sleeve 6064 and the acquisition lens 3 are positioned on the same horizontal line, the inner diameter of the protective sleeve 6064 is larger than the outer diameter of the acquisition lens 3, a display screen 6065 is installed at one side of the vertical plate 6063 away from the fingerprint acquisition instrument body 2, display screen 6065 and fingerprint collection appearance 2 signal connection, after the use, break away from the joint with draw-in groove 6051 on kelly 6054 rebound and the bottom plate 404, with fingerprint collection appearance 2 rotation one hundred eighty degrees, make the collecting lens 3 on the fingerprint collection appearance 2 towards vertical board 6063, slowly gyration adjust knob 407 afterwards, this moment under the spring action of first spring 408, make fingerprint collection appearance 2 slowly move back towards vertical board 6063, it is inside until collecting lens 3 enters into protective sheath 6064, thereby conveniently protect collecting lens 3 surface, avoid when not using, collecting lens 3 surface adhesion foreign matter, influence follow-up use.

The working principle is as follows: when the fingerprint collecting instrument is used, a user holds the handle 1, after the fingerprint collecting instrument body 2 is electrified, a fingerprint can be shot through the collecting lens 3, and meanwhile, the fingerprint collecting instrument body 2 is in signal connection with the display screen 6065, so that a picture shot by the collecting lens 3 can be transmitted to the display screen 6065 to be conveniently observed by the user, when a fingerprint at a higher or far position needs to be collected, the electromagnet 405 is electrified, so that attraction is generated on the magnetic block 406 on the bottom plate 404, the fingerprint collecting instrument body 2 moves towards the electromagnet 405 under the action of magnetic force, the first spring 408 is compressed, when the attraction is balanced with the elastic force of the first spring 408, the fingerprint collecting instrument body 2 stops moving, after the electromagnet 405 is electrified, the adjusting knob 407 is rotated to adjust the resistance value of the sliding rheostat on the circuit of the electromagnet 405, the magnetic force of the electromagnet 405 is continuously increased, so that the fingerprint collecting instrument body 2 moves along the sliding groove 402, distance adjusting operation is completed, and the fingerprint collection at the higher and the far position is conveniently carried out;

before distance adjustment is carried out, the thumb of a hand holding the handle 1 pushes the pull plate 510 to move upwards, so that the moving block 506 is driven to move upwards along the moving groove 505, the rotating rod 507 is driven to rotate, the connecting plate 504 and the clamping plate 503 are driven to move towards one side far away from the sliding block 403, the clamping teeth 511 and the clamping tooth grooves 512 are separated from clamping, so that the fingerprint acquisition instrument body 2 can move conveniently, when the fingerprint acquisition instrument body is fixed, the pull plate 510 is loosened, the moving block 506 moves upwards under the action of the elastic force of the second spring 508 at the moment, the clamping plates 503 on two sides of the sliding block 403 are driven to approach each other, so that the clamping teeth 511 and the clamping tooth grooves 512 are clamped, the fingerprint acquisition instrument body 2 is fixedly clamped and fixed, and the clamping teeth 511 and the clamping tooth grooves 512 are tightly arranged, so that the sliding blocks 403 in different positions can be clamped conveniently;

after the use is finished, the connecting rod 6057 on both sides of the pulling top plate 604 moves upwards, make the kelly 6054 move upwards to disengage from the joint with the clamping groove 6051 on the bottom plate 404, and the top plate 604 rotates with the bottom plate 404 through the rotating block 602, then rotate the fingerprint collection instrument body 2 one hundred eighty degrees, make the collection lens 3 on the fingerprint collection instrument body 2 face the protective sleeve 6064, then slowly turn the adjusting knob 407, make the magnetism of the electromagnet 405 constantly reduce, after the magnetism of the electromagnet 405 reduces, under the elastic force effect of the first spring 408, make the fingerprint collection instrument body 2 slowly turn back towards the vertical plate 6063, until the collection lens 3 enters into the protective sleeve 6064, thereby facilitate the protection of the collection lens 3, when not needed, guarantee the cleanness of the collection lens 3 surface, facilitate the subsequent use, simultaneously the vertical plate 6063 rotates with the rotating head 6061 on the moving seat 401 through the rotating head 6062 to be connected, and the rotating head 6061 and the rotating head 6063 is equipped with the torsional spring between the rotating head 6062, under the effect of the vertical plate 6063, the vertical plate 6063 keeps vertical plate 6063 vertical plate, when the collection instrument body 2 is used, keep away from the fingerprint collection instrument body 6063, then turn away from the fingerprint collection lens body 603, then, make one side of the vertical plate 603, then turn back 6063, make the vertical plate 603.

Claims (9)

1. Portable non-contact corpse fingerprint collection appearance, including handle (1), its characterized in that: a fingerprint acquisition instrument body (2) is arranged above the handle (1), an acquisition lens (3) is installed on one side of the fingerprint acquisition instrument body (2), a photographing button is installed on the handle (1) and used for controlling photographing of the acquisition lens (3), and a distance adjusting assembly (4) is installed between the handle (1) and the fingerprint acquisition instrument body (2);

distance adjustment subassembly (4) is including installing in removal seat (401) on handle (1) top, spout (402) have been seted up on the top of removing seat (401), the inside sliding connection of spout (402) has slider (403), bottom plate (404) are installed on the top of slider (403), the top of bottom plate (404) is located in fingerprint collection appearance body (2), first spring (408) are installed to one side of slider (403), the inner wall fixed connection of spout (402) is installed to the one end of first spring (408), magnetic path (406) are installed to one side that bottom plate (404) are close to first spring (408), one side that bottom plate (404) were kept away from in magnetic path (406) is equipped with electro-magnet (405), electro-magnet (405) fixed mounting is on the top of removing seat (401) one end, the both sides of spout (402) are equipped with equipment fixed subassembly (5), install rotating assembly (6) between bottom plate (404) and fingerprint collection appearance body (2).

2. The portable non-contact cadaver fingerprint acquisition instrument of claim 1, wherein: the electromagnet (405) is electrically connected with a power source and the sliding rheostat, one side of the movable seat (401) is provided with an adjusting knob (407), the adjusting knob (407) is used for adjusting the resistance value of the sliding rheostat, and the electromagnet (405) is magnetically connected with the magnetic block (406).

3. The portable non-contact cadaver fingerprint acquisition instrument of claim 1, wherein: fixed subassembly of equipment (5) is seted up side groove (501) in spout (402) both sides including the symmetry, the inside sliding connection of side groove (501) has splint (503), joint tooth (511) are installed to the equal equidistance in one side that two splint (503) are close to each other, slider (403) have been close to the equal equidistance in both sides of splint (503) and have been seted up joint tooth's socket (512), joint tooth (511) and joint tooth's socket (512) joint, joint tooth (511) and joint tooth's socket (512) all closely arrange, the length of splint (503) is the same with the length of spout (402).

4. The portable non-contact cadaver fingerprint acquisition instrument of claim 3, wherein: two logical groove (502) have all been seted up to one side that side groove (501) kept away from each other, lead to groove (502) and run through to the outside of removing seat (401), connecting plate (504) are all installed to one side that two splint (503) kept away from each other, connecting plate (504) and logical groove (502) sliding connection, shifting chute (505) have been seted up to the bilateral symmetry of removing seat (401), the inside sliding connection of shifting chute (505) has movable block (506), the outside of movable block (506) is rotated and is connected with dwang (507), the one end of dwang (507) is rotated with the bottom of connecting plate (504) and is connected, second spring (508) are installed to the bottom of movable block (506), the bottom of second spring (508) and the interior diapire fixed connection of shifting chute (505).

5. The portable non-contact cadaver fingerprint acquisition instrument of claim 4, wherein: bottom plates (509) are installed at the bottom ends of the moving blocks (506), a pulling plate (510) is installed between the two bottom plates (509), the pulling plate (510) is arranged in a U shape, and one side, far away from the end, of the pulling plate (510) is located on one side, far away from the electromagnet (405), of the moving seat (401).

6. The portable non-contact cadaver fingerprint acquisition instrument of claim 1, wherein: rotating assembly (6) are including offering in inside commentaries on classics groove (601) of slider (403), the inside rotation of commentaries on classics groove (601) is connected with commentaries on classics piece (602), pivot (603) are installed on the top of commentaries on classics piece (602), pivot (603) rotate with bottom plate (404) and are connected, roof (604) are installed on the top of pivot (603), the top of roof (604) and the bottom fixed connection of fingerprint collection appearance body (2), install location fixed unit (605) between roof (604) and bottom plate (404), remove seat (401) and keep away from the one end of electro-magnet (405) and install lens protection unit (606).

7. The portable non-contact cadaver fingerprint acquisition instrument of claim 6, wherein: fixed unit in location (605) is including draw-in groove (6051) of seting up in bottom plate (404) top both sides respectively symmetrically, sleeve (6052) are installed to the top both sides symmetry respectively of roof (604), sleeve (6052) are located the top of draw-in groove (6051), the inside sliding connection of sleeve (6052) has movable block (6053), kelly (6054) are installed to the bottom of movable block (6053), the bottom of kelly (6054) runs through to the below of roof (604), kelly (6054) joint in the inside of draw-in groove (6051).

8. The portable non-contact cadaver fingerprint acquisition instrument of claim 7, wherein: ejector pin (6055) are installed on the top of movable block (6053), and the top of ejector pin (6055) runs through to the top of sleeve (6052), installs connecting rod (6057) between two ejector pins (6055) of homonymy, and connecting rod (6057) are located the top of sleeve (6052), and third spring (6056) are installed on the top of movable block (6053), the top of third spring (6056) and the interior roof fixed connection of sleeve (6052).

9. The portable non-contact cadaver fingerprint acquisition instrument of claim 6, wherein: lens protection unit (606) install swivel mount (6061) of keeping away from electro-magnet (405) one side top including the installation in removal seat (401), the outside of swivel mount (6061) is rotated and is connected with swivel (6062), install the torsional spring between swivel (6062) and swivel mount (6061), vertical board (6063) are installed on the top of swivel (6062), protective sheath (6064) are installed to one side that vertical board (6063) are close to fingerprint collection appearance body (2), protective sheath (6064) are in on same water flat line with collection camera lens (3), the internal diameter of protective sheath (6064) is greater than the external diameter of collection camera lens (3), display screen (6065) are installed to one side that fingerprint collection appearance body (2) was kept away from in vertical board (6063), display screen (6065) and fingerprint collection appearance body (2) signal connection.

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