Handheld difficult material evidence targeted discovery instrument

Abstract

The utility model discloses a handheld target discovering instrument for difficult physical evidences. The handheld target discovering instrument comprises an instrument body and a support structure detachably arranged on the instrument body. The support structure comprises a mounting base, a mounting frame movably connected with the mounting base, a polarized lens arranged on the mounting frame and a clamping mechanism located on one side of the mounting frame and used for fixing a mobile phone, and the distance between the clamping mechanism and the mounting frame is adjustable. And the bracket structure is used for fixing the mobile phone and is matched with the polarized lens for use, so that the shot trace characteristics are clearer and more transparent. And after the mobile phone is fixed by the clamping mechanism, a single person can complete the material evidence acquisition and shooting work, so that the operation difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of targeted discovery instruments, and more specifically to a handheld difficult evidence targeted discovery instrument. Background Art

[0002] At present, in the field of criminal investigation, the physical evidence analyzer is an important instrument for finding criminal evidence. It plays a wide role in the on-site investigation of criminal cases. The instrument uses light of a special band to illuminate the residues at the crime scene. By combining with special fluorescent powder, it can be directly used to search for fingerprints, bloodstains, urine, saliva, sweat, semen stains and human tissues. Without any pretreatment, trace evidence of crime can be directly and clearly observed. It can be widely used in large-scale on-site searches for biological samples such as semen stains, urine stains, saliva, vaginal secretions, blood stains (without destroying DNA) and physical evidence such as fibers, bone and tooth fragments, paint fragments, latent fingerprints, shooting residues, etc., greatly improving the discovery and extraction rate and differentiation ability of on-site physical evidence.

[0003] When using the existing handheld target detection instrument, a mobile phone or camera is needed to take pictures of the trace features revealed after being smoked by the target detection instrument, which is not convenient for single-person operation. Utility Model Content

[0004] The purpose of the utility model is to provide a handheld difficult evidence targeted discovery instrument to solve the technical problems existing in the above-mentioned background technology.

[0005] The technical solution of the utility model provides a handheld difficult evidence targeted discovery instrument, comprising an instrument body and a support structure detachably arranged on the instrument body;

[0006] The support structure includes a mounting seat, a mounting frame movably connected to the mounting seat, a polarized lens arranged on the mounting frame, and a clamping mechanism located on one side of the mounting frame for fixing a mobile phone, and the distance between the clamping mechanism and the mounting frame is adjustable.

[0007] In a preferred embodiment, the clamping mechanism includes a clamping seat, a movable plate slidably connected to the clamping seat, and an adjusting rod passing through the movable plate and extending into the clamping seat for adjusting the distance between the movable plate and the clamping seat.

[0008] In a preferred embodiment, a horizontal clamping portion is provided on each of the movable plate and the clamping seat, and the mobile phone is located between the two horizontal clamping portions.

[0009] In a preferred embodiment, the adjusting rod is a threaded rod, and the adjusting rod is threadably connected to the movable plate and the clamping seat.

[0010] In a preferred embodiment, a distance adjusting plate 1 is provided on the mounting frame, a distance adjusting plate 2 is provided on the clamping mechanism, a slot for inserting the distance adjusting plate 2 is provided on the distance adjusting plate 1, and a plurality of distance adjusting holes are equidistantly provided on the distance adjusting plate 1, a limit button is provided on the distance adjusting plate 2, and the limit button is elastically connected to the distance adjusting plate 1.

[0011] In a preferred embodiment, a ball head connecting rod is arranged at the bottom of the mounting frame, a ball head seat is arranged on the mounting seat, and a locking knob is arranged on the ball head seat.

[0012] In a preferred embodiment, a threaded hole is provided on the instrument body, and a threaded connecting rod is provided at the bottom of the mounting seat.

[0013] The beneficial effects of the technical solution of the utility model are:

[0014] This solution adds a bracket structure and installs the mobile phone device on the bracket structure, so that the targeted detection instrument has the function of conveniently photographing the characteristics of the traces. One person can complete the acquisition and photography of physical evidence, reducing the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the overall structure of the bracket structure of the utility model.

[0017] Figure 3 This is a schematic diagram of the overall structure of the bracket structure of the utility model from another perspective.

[0018] Figure 4 For this utility model Figure 2 Magnified view of site A.

[0019] Explanation of the accompanying drawings: 1 instrument body, 2 bracket structure, 3 mounting seat, 4 mounting frame, 5 polarized lens, 6 clamping seat, 7 movable plate, 8 clamping part, 9 threaded rod, 10 distance adjusting plate one, 11 distance adjusting plate two, 12 distance adjusting hole, 13 limit button, 14 ball head connecting rod, 15 ball head seat, 16 locking knob, 17 threaded hole, 18 threaded connecting rod. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the sake of illustration and convenience of description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0021] like Figure 1-4 As shown, the technical solution of the utility model provides a handheld difficult evidence targeted discovery instrument, including an instrument body 1 and a support structure 2 detachably arranged on the instrument body 1. The instrument body 1 is used to spray reagents to make the traces more clearly displayed. The instrument body 1 has been disclosed in a handheld difficult evidence targeted display device disclosed in publication number CN202223566945.9. On this basis, the present solution adds a support structure 2 for fixing a mobile phone, which is convenient for a single person to perform shooting operations.

[0022] The support structure 2 includes a mounting seat 3, a mounting frame 4 movably connected to the mounting seat 3, a polarized lens 5 arranged on the mounting frame 4, and a clamping mechanism located on one side of the mounting frame 4 for fixing a mobile phone, and the distance between the clamping mechanism and the mounting frame 4 is adjustable. The mobile phone is fixed by the clamping mechanism, and after being fixed, the lens of the mobile phone is located behind the polarized lens 5. The function of the polarized lens 5 is to eliminate reflections and increase saturation. When used in conjunction with the polarized lens 5, the characteristics of the photographed traces are clearer and more transparent. After the mobile phone is fixed by the clamping mechanism, a single person can complete the acquisition and shooting of physical evidence, reducing the difficulty of operation.

[0023] The clamping mechanism includes a clamping seat 6, a movable plate 7 slidably connected to the clamping seat 6, and an adjusting rod passing through the movable plate 7 and extending into the clamping seat 6 for adjusting the distance between the movable plate 7 and the clamping seat 6. The movable plate 7 and the clamping seat 6 are both provided with a horizontal clamping portion 8, and the mobile phone is located between the two horizontal clamping portions 8. The adjusting rod is a threaded rod 9, and the adjusting rod is threadedly connected to the movable plate 7 and the clamping seat 6.

[0024] In the above scheme, the clamping seat 6 is fixedly arranged, and can be raised and lowered by twisting the threaded rod 9. When fixed, the mobile phone is placed between the two clamping parts 8, and then the threaded rod 9 is twisted to move the movable plate 7 downward to clamp the mobile phone. After clamping, the mobile phone is in a horizontal state, and its lens is located behind the polarized lens 5. After the trace is smoked, the operator can complete the photo shooting with one hand.

[0025] The mounting frame 4 is provided with a distance-adjusting plate 10, and the clamping mechanism is provided with a distance-adjusting plate 2 11. The distance-adjusting plate 10 is provided with a slot for inserting the distance-adjusting plate 2 11, and the distance-adjusting plate 10 is provided with a plurality of distance-adjusting holes 12 at equal intervals, and the distance-adjusting plate 2 11 is provided with a limit button 13, and the limit button 13 is elastically connected to the distance-adjusting plate 10. Because the lens positions of different mobile phones are different, and physical buttons such as the power button and volume button of the mobile phone should be avoided when clamping, the position of the mobile phone can be adjusted by setting the distance-adjusting plate 10 and the distance-adjusting plate 2 11 to ensure that the lens is located behind the polarized lens 5 to meet the use of different models of mobile phones. The limit button 13 can be extended and retracted, and it is limited by the distance-adjusting hole 12. After adjusting the distance between the distance-adjusting plate 10 and the distance-adjusting plate 2 11, the limit button 13 and the distance-adjusting hole 12 cooperate to limit.

[0026] A ball head connecting rod 14 is arranged at the bottom of the mounting frame 4, a ball head seat 15 is arranged on the mounting seat 3, and a locking knob 16 is arranged on the ball head seat 15. The arrangement of the ball head connecting rod 14 and the ball head seat 15 can realize the angle adjustment of the mounting frame 4 and improve the practical flexibility.

[0027] The instrument body 1 is provided with a threaded hole 17, and the bottom of the mounting seat 3 is provided with a threaded connecting rod 18. The support structure 2 is threadedly connected to the instrument body 1, and the support structure 2 can be disassembled from the instrument body 1, which is convenient for instrument storage and meets the diversity of use.

[0028] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A handheld difficult evidence targeted discovery instrument, characterized by: It comprises an instrument body and a support structure detachably arranged on the instrument body; The support structure includes a mounting seat, a mounting frame movably connected to the mounting seat, a polarized lens arranged on the mounting frame, and a clamping mechanism located on one side of the mounting frame for fixing a mobile phone, and the distance between the clamping mechanism and the mounting frame is adjustable.

2. A handheld difficult evidence targeted discovery instrument according to claim 1, characterized in that: The clamping mechanism comprises a clamping seat, a movable plate slidably connected to the clamping seat, and an adjusting rod passing through the movable plate and extending into the clamping seat for adjusting the distance between the movable plate and the clamping seat.

3. A handheld difficult evidence targeted discovery instrument according to claim 2, characterized in that: The movable plate and the clamping seat are both provided with a horizontal clamping portion, and the mobile phone is located between the two horizontal clamping portions.

4. A handheld difficult evidence targeted discovery instrument according to claim 2, characterized in that: The adjusting rod is a threaded rod, and the adjusting rod is threadedly connected to the movable plate and the clamping seat.

5. The handheld difficult evidence targeted discovery instrument according to claim 1, characterized in that: The mounting frame is provided with a first distance adjusting plate, the clamping mechanism is provided with a second distance adjusting plate, the first distance adjusting plate is provided with a slot for inserting the second distance adjusting plate, and the first distance adjusting plate is provided with a plurality of distance adjusting holes equidistantly arranged, the second distance adjusting plate is provided with a limit button, and the limit button is elastically connected to the first distance adjusting plate.

6. A handheld difficult evidence targeted discovery instrument according to claim 1, characterized in that: A ball head connecting rod is arranged at the bottom of the mounting frame, a ball head seat is arranged on the mounting seat, and a locking knob is arranged on the ball head seat.

7. A handheld difficult evidence targeted discovery instrument according to claim 1, characterized in that: The instrument body is provided with a threaded hole, and the bottom of the mounting seat is provided with a threaded connecting rod.

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