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CN-224203039-U - Material evidence finding instrument

CN224203039UCN 224203039 UCN224203039 UCN 224203039UCN-224203039-U

Abstract

The application provides a material evidence finding instrument, and relates to the technical field of material evidence finding equipment. The material evidence finding instrument comprises a main body and an atomization module, wherein the main body comprises a shell, a concave part is arranged on the front side of the shell and used for installing the atomization module, the atomization module is provided with a cavity, at least one partition plate is arranged in the cavity, the partition plate can divide the cavity into a plurality of independent solution cavities, different developing solutions are arranged in each solution cavity, a liquid outlet and an atomization piece are respectively arranged on the front side of each solution cavity, the atomization piece is arranged on the front side of the liquid outlet, and the atomization piece can atomize the developing solution flowing out of the liquid outlet to form atomized developing solution. The evidence finding instrument can improve the accuracy of the extract evidence.

Inventors

  • LI XIAOJUN
  • CHEN JING
  • ZHAO HEMIAO
  • WU HAO
  • QU HUIYING
  • XIA QINGHUA
  • ZHOU TENG
  • CHEN YU
  • GAO HAIBO
  • YANG YUPING
  • QIN QI
  • SONG RUIRONG
  • XUE JING
  • WANG HAOYU
  • CHEN RUILI
  • MEI HONGCHENG
  • DENG XIANHE
  • WANG CHONG

Assignees

  • 公安部鉴定中心

Dates

Publication Date
20260505
Application Date
20250401

Claims (10)

  1. 1. The material evidence finding instrument is characterized by comprising a main body (11) and an atomization module (13); The main body (11) comprises a shell (111), a concave part (1111) is arranged on the front side of the shell (111), and the concave part (1111) is used for installing the atomization module (13); The atomizing module (13) is provided with a cavity, at least one partition board (134) is arranged in the cavity, the partition board (134) can divide the cavity into a plurality of independent solution cavities (135), and different developing solutions are arranged in each solution cavity (135); The front sides of the solution cavities (135) are respectively provided with a liquid outlet (136) and an atomization piece (131), the atomization pieces (131) are arranged on the front sides of the liquid outlets (136), and the atomization pieces (131) can atomize the developing solution flowing out of the liquid outlets (136) to form atomized developing solution.
  2. 2. The evidence finding apparatus as claimed in claim 1, wherein each solution chamber (135) is provided with a liquid filling port (132) towards the top of the solution chamber (135); each solution cavity (135) is filled with the developing solution into the solution cavity (135) through the solution filling port (132).
  3. 3. The evidence finding instrument according to claim 2, wherein the atomizing module (13) comprises a plurality of sealing covers (133), and a plurality of sealing covers (133) are detachably arranged at the respective liquid filling openings (132).
  4. 4. The evidence finding instrument according to claim 1, characterized in that the body (11) comprises a plurality of lasers (112), at least part of the lasers (112) being arranged within the housing (111); The front side of the shell (111) is sequentially provided with a plurality of mounting ports (1113), and the mounting ports (1113) are respectively connected with the lasers (112); a plurality of lasers (112) are arranged corresponding to a plurality of solution cavities (135), and the lasers (112) can emit laser matched with the developing solution in the corresponding solution cavities (135).
  5. 5. The evidence finding apparatus as claimed in claim 4, wherein a control board is provided in the housing (111), a knob (118) is provided on at least part of the housing (111), and the control board is electrically connected with the knob (118); The knob (118) is configured such that the knob (118) rotates to different gear positions and the control board controls different lasers (112) to emit laser light of different frequencies.
  6. 6. The evidence finding apparatus as claimed in claim 1, wherein the partition plate (134) extends in a front-rear direction of the atomizing module (13), the partition plate (134) dividing the cavity to form a first solution chamber (1351) and a second solution chamber (1352); The first solution cavity (1351) is internally provided with a first developing solution, and the second solution cavity (1352) is internally provided with a second developing solution.
  7. 7. The evidence finding instrument according to claim 6, characterized in that a control board is provided in the housing (111), a switch button (121) is provided at a rear side of at least part of the housing (111), and the control board and the switch button (121) are electrically connected; When the switching button (121) and the control panel are in a first state, the atomizing piece (131) atomizes the first developing solution to form first atomized developing solution; When the switching button (121) and the control panel are in a second state, the atomizing piece (131) atomizes the second developing solution to form second atomized developing solution; when the switching button (121) and the control panel are in a third state, the atomizing piece (131) atomizes the first developing solution and the second developing solution to form a third atomized developing solution; When the switching button (121) and the control board are in a fourth state, the atomizing member (131) does not atomize the first developing solution and the second developing solution.
  8. 8. The evidence finding apparatus as claimed in claim 1, characterized in that the body (11) and the atomizing module (13) are detachably connected; The main body (11) is provided with a first connecting part (123), and the atomization module (13) is provided with a second connecting part; When the atomization module (13) is located at the concave portion (1111), the first connection portion (123) is electrically connected with the second connection portion.
  9. 9. The evidence finding instrument according to claim 1, characterized in that the recess (1111) is provided with at least one first magnetic element (122) and the atomizing module (13) is provided with at least one second magnetic element; The first magnetic piece (122) and the second magnetic piece are magnetically attracted, and the atomization module (13) is detachably connected with the main body (11); And/or the concave part (1111) is provided with at least one clamping groove, the atomization module (13) is provided with at least one buckle, and the atomization module (13) is clamped with the main body (11) through the clamping groove and the buckle.
  10. 10. The evidence finding apparatus as claimed in claim 1, wherein the main body (11) is provided with a power supply mounting portion detachably connected with an external power supply; When the external power supply is connected with the power supply installation part, the external power supply is electrically connected with the main body (11) and can supply power to the main body (11).

Description

Material evidence finding instrument Technical Field The application relates to the technical field of material evidence discovery equipment, in particular to a material evidence discovery instrument. Background The material evidence discovery instrument is detection equipment designed in the fields of criminal investigation, forensic identification and the like, and can be used for capturing on-site material evidence or a left-over position of the material evidence. The evidence finding instrument can improve the efficiency of promoting evidence extraction. After the human body contacts with the surface of the carrier, physical evidence (such as sebum, sweat, exfoliated cells, blood and the like) can be left on the surface of the carrier. And the atomizer of the material evidence finding instrument atomizes the developer in the atomizing cavity and then sprays the atomized developer on the surface of the carrier. After waiting for the developer to react with the material evidence for a period of time, the material evidence discovery instrument emits laser to irradiate the material evidence reacted with the developer, and the position of the material evidence can excite fluorescent speckles, so that the material evidence can be extracted. However, the material evidence finding instrument sprays the atomized developer on different material evidence, and the different material evidence has different developing effects due to different components, so that the material evidence is fuzzy, and the accuracy of the material evidence is reduced. Disclosure of utility model In view of the above problems, embodiments of the present application provide a material evidence finding apparatus, which can improve accuracy of extracting material evidence. In order to achieve the above object, the embodiment of the present application provides the following technical solutions: the embodiment of the application provides a material evidence finding instrument, which comprises a main body and an atomization module; the main body comprises a shell, a concave part is arranged on the front side of the shell, and the concave part is used for installing the atomization module; The atomizing module is provided with a cavity, at least one baffle is arranged in the cavity, the baffle can divide the cavity into a plurality of independent solution cavities, and different developing solutions are arranged in each solution cavity; The front side in each solution chamber is provided with liquid outlet and atomizing piece respectively, and the atomizing piece sets up in the front side of liquid outlet, and the atomizing piece can atomize the developer solution that the liquid outlet flows, forms atomizing developer solution. In some embodiments of the application, each solution chamber is provided with a liquid filling port towards the top of the solution chamber; and each solution cavity is filled with developing solution through a solution filling port. In some embodiments of the application, the atomizing module includes a plurality of sealing caps detachably disposed at the respective liquid loading ports. In some embodiments of the application, the body includes a plurality of lasers, at least a portion of the lasers being disposed within the housing; The front side of the shell is sequentially provided with a plurality of mounting ports which are respectively connected with a plurality of lasers; the plurality of lasers are correspondingly arranged with the plurality of solution cavities, and the lasers can emit laser matched with the developing solution in the corresponding solution cavities. In some embodiments of the application, a control board is arranged in the shell, at least part of the shell is provided with a knob, and the control board is electrically connected with the knob; the knob is configured to rotate to different gears, and the control board controls the different lasers to emit laser light with different frequencies. In some embodiments of the application, the partition extends in a front-to-rear direction of the atomizing module, the partition separating the cavities to form a first solution chamber and a second solution chamber; the first solution cavity is internally provided with a first developing solution, and the second solution cavity is internally provided with a second developing solution. In some embodiments of the application, a control board is arranged in the shell, a switching button is arranged on the rear side of at least part of the shell, and the control board is electrically connected with the switching button; when the switching button and the control panel are in a first state, the atomizing piece atomizes the first developing solution to form first atomized developing solution; When the switching button and the control panel are in the second state, the atomizing piece atomizes the second developing solution to form second atomized developing solution; when the switching button and the control