Portable non-contact corpse fingerprint collection instrument

Abstract

The application relates to the field of fingerprint collection, and discloses a portable non-contact corpse fingerprint collection instrument, which effectively solves the problem that a handle is fixedly connected with a fingerprint collection instrument, and it is difficult to collect fingerprints on a relatively high or far position, and comprises a handle, a fingerprint collection instrument body is arranged above the handle, a collection lens is arranged on one side of the fingerprint collection instrument body, a photographing button is arranged on the handle, the photographing button is used for controlling photographing of the collection lens, and a distance adjusting assembly is arranged between the handle and the fingerprint collection instrument body. After the electromagnet is electrified, the magnetic block is attracted, the fingerprint collection instrument body is driven to move along the sliding groove towards the electromagnet, when the fingerprint collection instrument body moves to a position where the magnetic force of the electromagnet and the elastic force of the first spring are balanced, the fingerprint collection instrument body stops moving, thereby facilitating position adjustment and facilitating collection of fingerprints on a relatively high or far position.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of fingerprint collection, and specifically relates to a portable non-contact corpse fingerprint collection instrument. BACKGROUND

[0002] The corpse fingerprint collection and extraction of corpses in different states such as corruption, dryness, swelling and burning have been studied in many cases by material evidence technicians, and various fingerprint recovery treatment measures such as "cleaning and removing dirt" and "injection filling" and various corpse fingerprint extraction methods such as "ink stamping" and "adhesive paper extraction" have been proposed. However, due to the diversity, complexity and instability of the state of the corpse fingerprint, as well as the influence of many unfavorable factors such as the difficulty of moving the corpse due to its corruption and stiffness, the poor collection environment and the complex and tedious collection procedure, the corpse fingerprint collection technology has always lagged behind the development of other material evidence extraction technology, and the types of special equipment for corpse fingerprint collection are also severely insufficient. At present, corpse fingerprint collection still has the following problems in practice: great technical difficulty, certain pollution and damage to the corpse, low fingerprint collection quality, low collection efficiency and difficulty in real-time query and comparison. Therefore, a portable non-contact corpse fingerprint collection device is provided, which can collect corpse fingerprints in a non-contact manner through photoelectric technology and computer image processing technology. The device is composed of a handle and a fingerprint collection instrument at the top of the handle. The fingerprint collection instrument is internally provided with a structured light machine, a camera lens and a lighting lamp. However, the following defects still exist:

[0003] Since the handle and the fingerprint collection instrument are fixedly connected, it is not easy to complete the collection of fingerprints at a far or high position due to the limited length of the arm. SUMMARY

[0004] In view of the above problems, the present application provides a portable non-contact corpse fingerprint collection instrument to overcome the defects of the prior art and effectively solve the problem that the handle and the fingerprint collection instrument are fixedly connected, making it difficult to complete the collection of fingerprints at a far or high position.

[0005] To achieve the above object, the present application provides the following technical scheme: a portable non-contact corpse fingerprint collection instrument, comprising a handle, wherein the upper part of the handle is provided with a fingerprint collection instrument body, one side of the fingerprint collection instrument body is provided with a collection lens, a photographing button is installed on the handle, the photographing button is used for controlling the photographing of the collection lens, and a distance adjusting assembly is installed between the handle and the fingerprint collection instrument body.

[0006] The distance adjusting assembly comprises a moving seat mounted at the top end of the handle, a sliding groove is formed at the top end of the moving seat, a sliding block is slidably connected in the sliding groove, a bottom plate is mounted at the top end of the sliding block, the fingerprint collector body is arranged above the bottom plate, a first spring is mounted at one side of the sliding block, one end of the first spring is fixedly connected with the inner wall of the sliding groove, a magnetic block is mounted at the side of the bottom plate close to the first spring, an electromagnet is arranged at the side of the magnetic block away from the bottom plate, the electromagnet is fixedly mounted at the top end of one end of the moving seat, equipment fixing assemblies are arranged at both sides of the sliding groove, and a rotating assembly is mounted between the bottom plate and the fingerprint collector body.

[0007] Preferably, the electromagnet is electrically connected with a power source and a sliding rheostat, an adjusting knob is mounted at one side of the moving seat, the adjusting knob is used for adjusting the resistance value of the sliding rheostat, and the electromagnet is magnetically connected with the magnetic block.

[0008] Preferably, the equipment fixing assemblies comprise side grooves symmetrically formed at both sides of the sliding groove, clamping plates are slidably connected in the side grooves, clamping teeth are equidistantly arranged at the sides of the two clamping plates away from each other, clamping tooth grooves are equidistantly formed at the two sides of the sliding block close to the clamping plates, the clamping teeth are clamped with the clamping tooth grooves, the clamping teeth and the clamping tooth grooves are closely arranged, and the length of the clamping plate is the same as the length of the sliding groove.

[0009] Preferably, through grooves are formed at the sides of the two side grooves away from each other, the through grooves penetrate to the outside of the moving seat, connecting plates are mounted at the sides of the two clamping plates away from each other, the connecting plates are slidably connected with the through grooves, moving grooves are symmetrically formed at the two sides of the moving seat, moving blocks are slidably connected in the moving grooves, rotating rods are rotatably connected at the outside of the moving blocks, one end of the rotating rod is rotatably connected with the bottom end of the connecting plate, a second spring is mounted at the bottom end of the moving block, and the bottom end of the second spring is fixedly connected with the inner bottom wall of the moving groove.

[0010] Preferably, bottom plates are mounted at the bottom ends of the moving blocks, a pull plate is mounted between the two bottom plates, the pull plate is arranged in a U shape, and the side of the pull plate away from the end is located at the side of the moving seat away from the electromagnet.

[0011] Preferably, the rotating assembly comprises a rotating groove formed in the sliding block, a rotating block is rotatably connected in the rotating groove, a rotating shaft is mounted at the top end of the rotating block, the rotating shaft is rotatably connected with the bottom plate, a top plate is mounted at the top end of the rotating shaft, the top end of the top plate is fixedly connected with the bottom end of the fingerprint collector body, a positioning and fixing unit is mounted between the top plate and the bottom plate, and a lens protection unit is mounted at the end of the moving seat away from the electromagnet.

[0012] Preferably, the positioning and fixing unit comprises clamping grooves symmetrically formed at the two sides of the top end of the bottom plate, sleeves are symmetrically mounted at the two sides of the top end of the top plate, the sleeves are located above the clamping grooves, movable blocks are slidably connected in the sleeves, clamping rods are mounted at the bottom ends of the movable blocks, the clamping rods penetrate to the lower side of the top plate, and the clamping rods are clamped in the clamping grooves.

[0013] Preferably, the top end of the movable block is provided with a top rod, the top end of the top rod penetrates into the top end of the sleeve, two top rods on the same side are provided with a connecting rod, the connecting rod is located above the sleeve, the top end of the movable block is provided with a third spring, and the top end of the third spring is fixedly connected with the inner top wall of the sleeve.

[0014] Preferably, the lens protection unit comprises a rotating seat mounted on the top end of the moving seat away from the electromagnet, a rotating head is rotatably connected to the outer side of the rotating seat, a torsional spring is mounted between the rotating head and the rotating seat, a vertical plate is mounted on the top end of the rotating head, a protective sleeve is mounted on the side close to the fingerprint collector body of the vertical plate, the protective sleeve is on the same horizontal line with the collection lens, the inner diameter of the protective sleeve is larger than the outer diameter of the collection lens, a display screen is mounted on the side away from the fingerprint collector body of the vertical plate, and the display screen is signal connected with the fingerprint collector body.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] (1) After the electromagnet is electrified, the magnetic block is attracted, and then the fingerprint collector body moves along the sliding groove towards the electromagnet, when the fingerprint collector body moves to the position where the magnetic force of the electromagnet and the elastic force of the first spring are balanced, the fingerprint collector body stops moving, and the electromagnet is electrically connected with a sliding rheostat, when the fingerprint collector body is adjusted to the position, the adjusting knob is slowly turned, the magnetism of the electromagnet is slowly increased, the fingerprint collector body is slowly moved, the position is conveniently adjusted, and the fingerprint on a higher and farther position is conveniently collected.

[0017] (2) Before the position is adjusted, the pull plate is pushed to move upwards, the connecting plate and the clamping plate are moved away from the side of the sliding block through the rotating rod, the clamping teeth and the clamping tooth grooves are disengaged, the movement of the fingerprint collector body is facilitated, when fixed, the pull plate is loosened, the clamping plate is moved back under the elastic force of the second spring, the clamping teeth and the clamping tooth grooves are closely arranged, the sliding blocks on different positions are conveniently clamped, the fingerprint collector body is fixed and clamped, and the fingerprint collector body is convenient for fingerprint collection.

[0018] (3) After use, the clamping rod is moved upwards to disengage the clamping groove on the bottom plate, the fingerprint collector body is rotated by one hundred and eighty degrees, the collection lens on the fingerprint collector body faces the vertical plate, then the adjusting knob is slowly turned, the fingerprint collector body is slowly moved back to the vertical plate under the elastic force of the first spring, and the collection lens enters the inside of the protective sleeve, so that the surface of the collection lens is conveniently protected, foreign matters are prevented from adhering to the surface of the collection lens when not in use, and the subsequent use is affected. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are meant to explain the application without limiting the application to the embodiments.

[0020] In the drawings:

[0021] Figure 1 Structure schematic view of portable non-contact corpse fingerprint collector of the present application;

[0022] Figure 2 Structure schematic view of distance adjusting assembly of the present application;

[0023] Figure 3 Structure schematic view of equipment fixing assembly of the present application;

[0024] Figure 4 Structure schematic view of clamping tooth and clamping tooth groove of the present application;

[0025] Figure 5 Structure schematic view of rotating assembly of the present application;

[0026] Figure 6 Structure schematic view of positioning and fixing unit of the present application;

[0027] Figure 7 Structure schematic view of lens protection unit of the present application;

[0028] In the drawings: 1, handle; 2, fingerprint collector body; 3, collecting lens; 4, distance adjusting assembly; 401, moving seat; 402, sliding groove; 403, sliding block; 404, bottom plate; 405, electromagnet; 406, magnetic block; 407, adjusting knob; 408, first spring; 5, equipment fixing assembly; 501, side groove; 502, through groove; 503, clamping plate; 504, connecting plate; 505, moving groove; 506, moving block; 507, rotating rod; 508, second spring; 509, bottom plate; 510, pull plate; 511, clamping tooth; 512, clamping tooth groove; 6, rotating assembly; 601, rotating groove; 602, rotating block; 603, rotating shaft; 604, top plate; 605, positioning and fixing unit; 6051, clamping groove; 6052, sleeve; 6053, movable block; 6054, clamping rod; 6055, top rod; 6056, third spring; 6057, connecting rod; 606, lens protection unit; 6061, rotating seat; 6062, rotating head; 6063, vertical plate; 6064, protection sleeve; 6065, display screen. DETAILED DESCRIPTION

[0029] Clearly, the embodiments described are only a part of the embodiments of the present application, rather than all the embodiments; based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0030] Embodiment one, by Figures 1-7 The present application comprises a handle 1, an upper part of the handle 1 is provided with a fingerprint collector body 2, one side of the fingerprint collector body 2 is provided with a collection lens 3, a photographing button is installed on the handle 1, the photographing button is used for controlling photographing of the collection lens 3, a distance adjusting assembly 4 is installed between the handle 1 and the fingerprint collector body 2;

[0031] The distance adjusting assembly 4 comprises a moving seat 401 installed at a top end of the handle 1, a sliding groove 402 is formed at a top end of the moving seat 401, a sliding block 403 is slidably connected inside the sliding groove 402, a bottom plate 404 is installed at a top end of the sliding block 403, the fingerprint collector body 2 is arranged above the bottom plate 404, a first spring 408 is installed at one side of the sliding block 403, one end of the first spring 408 is fixedly connected to an inner wall of the sliding groove 402, a magnetic block 406 is installed at a side of the bottom plate 404 close to the first spring 408, an electromagnet 405 is arranged at a side of the magnetic block 406 away from the bottom plate 404, the electromagnet 405 is fixedly installed at a top end of one end of the moving seat 401, equipment fixing assemblies 5 are arranged at both sides of the sliding groove 402, a rotating assembly 6 is installed between the bottom plate 404 and the fingerprint collector body 2, the electromagnet 405 is electrically connected with a power supply and a sliding rheostat, an adjusting knob 407 is installed at one side of the moving seat 401, the adjusting knob 407 is used for adjusting a resistance value of the sliding rheostat, the electromagnet 405 is magnetically connected with the magnetic block 406, after the electromagnet 405 is electrified, an attractive force is generated to the magnetic block 406, and then the fingerprint collector body 2 is driven to move along the sliding groove 402 towards the electromagnet 405, when the fingerprint collector body 2 moves to a position where the magnetic force of the electromagnet 405 and the elastic force of the first spring 408 are balanced, the fingerprint collector body 2 stops moving, the electromagnet 405 is electrically connected with the sliding rheostat, when the position of the fingerprint collector body 2 is adjusted, the adjusting knob 407 is slowly rotated, so that the magnetism of the electromagnet 405 is slowly increased, and then the fingerprint collector body 2 is slowly moved, so that the position is conveniently adjusted, and the fingerprint at a higher and farther position is conveniently collected.

[0032] The equipment fixing assembly 5 comprises symmetrical side slots 501 opened at two sides of the sliding groove 402, clamping plates 503 slidably connected inside the side slots 501, clamping teeth 511 equidistantly arranged at one side of each of the two clamping plates 503, clamping tooth grooves 512 equidistantly opened at two sides of the sliding block 403 close to the clamping plates 503, the clamping teeth 511 and the clamping tooth grooves 512 being clamped, the clamping teeth 511 and the clamping tooth grooves 512 being closely arranged, the length of the clamping plate 503 being the same as the length of the sliding groove 402, through grooves 502 opened at two sides of each of the two side slots 501 away from each other, the through grooves 502 penetrating to the outside of the moving base 401, connecting plates 504 mounted at two sides of each of the two clamping plates 503 away from each other, the connecting plates 504 being slidably connected with the through grooves 502, moving grooves 505 symmetrically opened at two sides of the moving base 401, moving blocks 506 slidably connected inside the moving grooves 505, rotating rods 507 rotatably connected at the outside of the moving blocks 506, one end of the rotating rod 507 being rotatably connected with the bottom end of the connecting plate 504, second springs 508 mounted at the bottom end of the moving block 506, bottom ends of the second springs 508 being fixedly connected with the inner bottom wall of the moving groove 505, bottom plates 509 mounted at the bottom end of the moving block 506, a pull plate 510 mounted between the two bottom plates 509, the pull plate 510 being arranged in a U shape, one side of the pull plate 510 away from the end portion being located at the side of the moving base 401 away from the electromagnet 405, before position adjustment, the pull plate 510 is pushed to move upward, the connecting plate 504 and the clamping plate 503 are driven by the rotating rod 507 to move away from the sliding block 403, so that the clamping teeth 511 and the clamping tooth grooves 512 are disengaged, thereby facilitating the movement of the fingerprint collector body 2, when fixed, the pull plate 510 is loosened, so that the clamping plate 503 moves back under the elastic force of the second spring 508, since the clamping teeth 511 and the clamping tooth grooves 512 are closely arranged, the clamping of the sliding block 403 at different positions is facilitated, thereby the fingerprint collector body 2 is fixed and clamped, and the fingerprint collector body 2 is facilitated to collect fingerprints.

[0033] The rotating assembly 6 comprises a rotating groove 601 formed in the slider 403, the rotating groove 601 is rotatably connected with a rotating block 602, the top end of the rotating block 602 is provided with a rotating shaft 603, the rotating shaft 603 is rotatably connected with the bottom plate 404, 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 collector body 2, the top plate 604 and the bottom plate 404 are provided with a positioning and fixing unit 605, the end of the moving seat 401 away from the electromagnet 405 is provided with a lens protection unit 606, the positioning and fixing unit 605 comprises clamping grooves 6051 symmetrically formed at the top end of the two sides of the bottom plate 404, the top end of the two sides of the top plate 604 is symmetrically provided with sleeves 6052, the sleeves 6052 are located above the clamping grooves 6051, the sleeves 6052 are slidably connected with movable blocks 6053, the bottom end of the movable blocks 6053 is provided with clamping rods 6054, the bottom end of the clamping rods 6054 penetrates to the lower side of the top plate 604, the clamping rods 6054 are clamped in the clamping grooves 6051, the top end of the movable blocks 6053 is provided with top rods 6055, the top end of the top rods 6055 penetrates to the top end of the sleeves 6052, the two top rods 6055 on the same side are provided with a connecting rod 6057, the connecting rod 6057 is located above the sleeves 6052, the top end of the third spring 6056 is fixedly connected with the inner top wall of the sleeve 6052, the lens protection unit 606 comprises a rotating seat 6061 provided on the top end of the side of the moving seat 401 away from the electromagnet 405, the outer side of the rotating seat 6061 is rotatably connected with a rotating head 6062, the rotating head 6062 and the rotating seat 6061 are provided with a torsional spring, the top end of the rotating head 6062 is provided with a vertical plate 6063, the side of the vertical plate 6063 close to the fingerprint collector body 2 is provided with a protective sleeve 6064, the protective sleeve 6064 is on the same horizontal line with the collecting lens 3, the inner diameter of the protective sleeve 6064 is larger than the outer diameter of the collecting lens 3, the side of the vertical plate 6063 away from the fingerprint collector body 2 is provided with a display screen 6065, the display screen 6065 is signal connected with the fingerprint collector body 2, after use, the clamping rods 6054 are moved upward to be disengaged from the clamping grooves 6051 on the bottom plate 404, the fingerprint collector body 2 is rotated by one hundred and eighty degrees, so that the collecting lens 3 on the fingerprint collector body 2 faces the vertical plate 6063, then the adjusting knob 407 is slowly turned, at this time, under the elastic force of the first spring 408, the fingerprint collector body 2 is slowly moved back to the vertical plate 6063, until the collecting lens 3 enters the inside of the protective sleeve 6064, so that the surface of the collecting lens 3 is protected, and the surface of the collecting lens 3 is prevented from adhering foreign matters when not in use, and the subsequent use is affected.

[0034] Working principle: in use, the user holds the handle 1, the fingerprint collector body 2 is powered on, the collection lens 3 can shoot the fingerprint, the fingerprint collector body 2 is connected with the display screen 6065, so that the picture taken by the collection lens 3 can be transmitted to the display screen 6065 for the user to observe, when the fingerprint at a higher or farther position needs to be collected, the electromagnet 405 is powered on, the magnetic block 406 on the bottom plate 404 is attracted, the fingerprint collector body 2 moves towards the electromagnet 405 under the magnetic force, the first spring 408 is compressed, when the attraction and the elastic force of the first spring 408 are balanced, the fingerprint collector body 2 stops moving, so that when the electromagnet 405 is powered on, the adjusting knob 407 is rotated to adjust the resistance value of the slide resistor in the circuit of the electromagnet 405, so that the magnetic force of the electromagnet 405 is continuously increased, so that the fingerprint collector body 2 moves along the sliding groove 402, so as to complete the distance adjustment operation, which is convenient for collecting the fingerprint at a higher or farther position;

[0035] Before distance adjustment, the thumb of the hand holding the handle 1 pushes the pull plate 510 to move upwards, so as to drive the moving block 506 to move upwards along the moving groove 505, then the rotating rod 507 is rotated to drive the connecting plate 504 and the clamping plate 503 to move away from the sliding block 403, so that the clamping teeth 511 and the clamping tooth groove 512 are disengaged, so as to facilitate the movement of the fingerprint collector body 2, and when fixed, the pull plate 510 is loosened, at this time the moving block 506 moves upwards under the elastic force of the second spring 508, then the clamping plates 503 on both sides of the sliding block 403 move close to each other, so that the clamping teeth 511 and the clamping tooth groove 512 are clamped, so as to fix and clamp the fingerprint collector body 2, since the clamping teeth 511 and the clamping tooth groove 512 are closely arranged, it is convenient to clamp the sliding block 403 at different positions;

[0036] After use, pull the connecting rod 6057 on both sides of the top plate 604 upwards to move the clamping rod 6054 upwards to disengage from the clamping slot 6051 on the bottom plate 404, and the top plate 604 is connected to the bottom plate 404 through the rotating block 602, then the fingerprint collector body 2 is rotated by one hundred and eighty degrees, so that the collection lens 3 on the fingerprint collector body 2 faces the protective sleeve 6064, then slowly rotate the adjusting knob 407, so that the magnetism of the electromagnet 405 is continuously reduced, after the magnetism of the electromagnet 405 is reduced, under the elastic force of the first spring 408, the fingerprint collector body 2 slowly moves back to the vertical plate 6063, until the collection lens 3 enters the inside of the protective sleeve 6064, so as to facilitate the protection of the collection lens 3, and ensure the cleanliness of the surface of the collection lens 3 when not in use, convenient for subsequent use, at the same time, the vertical plate 6063 is connected to the rotating seat 6061 on the moving seat 401 through the rotating head 6062, and a torsional spring is arranged between the rotating seat 6061 and the rotating head 6062, under the action of the torsional spring, the vertical plate 6063 remains vertical, when the fingerprint collector body 2 is used, the vertical plate 6063 is turned away from the side of the fingerprint collector body 2, at this time the collection lens 3 leaves the inside of the protective sleeve 6064, then the fingerprint collector body 2 is turned back by one hundred and eighty degrees, so that the collection lens 3 faces away from the side of the vertical plate 6063, and the fingerprint collection is carried out.

Claims

1. A portable non-contact cadaver fingerprint collection instrument comprising a handle (1), characterized in that: The handle (1) is provided with a fingerprint collector body (2) above it. A collection lens (3) is installed on one side of the fingerprint collector body (2). A photo button is installed on the handle (1). The photo button is used to control the collection lens (3) to take pictures. A distance adjustment component (4) is installed between the handle (1) and the fingerprint collector body (2). The distance adjustment assembly (4) includes a movable base (401) mounted on the top of the handle (1). A groove (402) is provided on the top of the movable base (401). A slider (403) is slidably connected inside the groove (402). A base plate (404) is mounted on the top of the slider (403). The fingerprint collector body (2) is located above the base plate (404). A first spring (408) is mounted on one side of the slider (403). One end of the first spring (408) is mounted with... The inner wall of the slide groove (402) is fixedly connected. A magnetic block (406) is installed on the side of the base plate (404) near the first spring (408). An electromagnet (405) is provided on the side of the magnetic block (406) away from the base plate (404). The electromagnet (405) is fixedly installed on the top of one end of the movable seat (401). Equipment fixing components (5) are provided on both sides of the slide groove (402). A rotating component (6) is installed between the base plate (404) and the fingerprint collector body (2). The electromagnet (405) is electrically connected to a power source and a sliding rheostat. An adjustment knob (407) is installed on one side of the movable base (401). The adjustment knob (407) is used to adjust the resistance value of the sliding rheostat. The electromagnet (405) is magnetically connected to the magnetic block (406). The equipment fixing component (5) includes side grooves (501) symmetrically opened on both sides of the slide groove (402). The side grooves (501) are slidably connected with clamps (503). The two clamps (503) are equidistantly installed with snap-fit ​​teeth (511) on the side that is close to each other. The slider (403) is equidistantly opened with snap-fit ​​grooves (512) on both sides that are close to the clamps (503). The snap-fit ​​teeth (511) and snap-fit ​​grooves (512) snap together. The snap-fit ​​teeth (511) and snap-fit ​​grooves (512) are closely arranged. The length of the clamps (503) is the same as the length of the slide groove (402).

2. The portable non-contact corpse fingerprint collection instrument according to claim 1, characterized in that: Each of the two side grooves (501) has a through groove (502) on the side away from each other. The through groove (502) extends to the outside of the movable seat (401). Each of the two clamping plates (503) has a connecting plate (504) on the side away from each other. The connecting plate (504) is slidably connected to the through groove (502). The movable seat (401) has symmetrical movable grooves (505) on both sides. A movable block (506) is slidably connected inside the movable groove (505). A rotating rod (507) is rotatably connected to the outside of the movable block (506). One end of the rotating rod (507) is rotatably connected to the bottom end of the connecting plate (504). A second spring (508) is installed at the bottom end of the movable block (506). The bottom end of the second spring (508) is fixedly connected to the inner bottom wall of the movable groove (505).

3. The portable non-contact corpse fingerprint collection instrument according to claim 2, characterized in that: The bottom end of the moving block (506) is provided with a bottom plate (509), two bottom plates (509) are provided with a pull plate (510), the pull plate (510) is provided in a U-shaped form, and the side, away from the end of the pull plate (510), is located on the side, away from the electromagnet (405), of the moving seat (401).

4. The portable non-contact corpse fingerprint collection instrument according to claim 1, characterized in that: The rotating assembly (6) comprises a rotating groove (601) formed in the slider (403), a rotating block (602) rotatably connected in the rotating groove (601), a rotating shaft (603) installed at the top end of the rotating block (602), the rotating shaft (603) rotatably connected with the bottom plate (404), a top plate (604) installed at the top end of the rotating shaft (603), the top end of the top plate (604) fixedly connected with the bottom end of the fingerprint collector body (2), a positioning and fixing unit (605) installed between the top plate (604) and the bottom plate (404), and a lens protection unit (606) installed at the end, away from the electromagnet (405), of the moving seat (401).

5. The portable non-contact post-mortem fingerprint collection apparatus of claim 4, wherein: The positioning and fixing unit (605) comprises clamping grooves (6051) symmetrically formed at the top end of the bottom plate (404), sleeve sleeves (6052) symmetrically installed at the top end of the top plate (604), the sleeve sleeves (6052) located above the clamping grooves (6051), movable blocks (6053) slidably connected in the sleeve sleeves (6052), clamping rods (6054) installed at the bottom end of the movable blocks (6053), the clamping rods (6054) penetrating through the bottom plate (604) below, and the clamping rods (6054) clamped in the clamping grooves (6051).

6. The portable non-contact post-mortem fingerprint collection apparatus of claim 5, wherein: A top rod (6055) is installed at the top end of the movable block (6053), the top end of the top rod (6055) penetrates through the top end of the sleeve sleeve (6052), connecting rods (6057) are installed between the two top rods (6055) on the same side, the connecting rods (6057) located above the sleeve sleeves (6052), a third spring (6056) is installed at the top end of the movable block (6053), and the top end of the third spring (6056) is fixedly connected with the inner top wall of the sleeve sleeve (6052).

7. The portable non-contact post-mortem fingerprint collection apparatus of claim 4, wherein: The lens protection unit (606) comprises a rotating seat (6061) installed at the top end of the end, away from the electromagnet (405), of the moving seat (401), a rotating head (6062) rotatably connected at the outer side of the rotating seat (6061), a torsional spring installed between the rotating head (6062) and the rotating seat (6061), a vertical plate (6063) installed at the top end of the rotating head (6062), a protection sleeve (6064) installed at the side, close to the fingerprint collector body (2), of the vertical plate (6063), the protection sleeve (6064) and the collecting lens (3) being on the same horizontal line, the inner diameter of the protection sleeve (6064) being larger than the outer diameter of the collecting lens (3), a display screen (6065) installed at the side, away from the fingerprint collector body (2), of the vertical plate (6063), and the display screen (6065) signal connected with the fingerprint collector body (2).

Images