Hair sampling device for forensic identification

Abstract

The utility model discloses a forensic appraisal hair sampling device which comprises a hair storage cylinder and an external thread head fixedly arranged at the top end of the hair storage cylinder, and the external thread head is provided with a hair collecting mechanism used for cutting and tightening hair. According to the medical hair taking device, collected hair is stored in the hair storage cylinder, traditional scissors are replaced with the hair collecting mechanism, after pressing and buckling, the hair can be automatically pressed after being cut off from the root, the cut hair is neat in end and directly loaded into the hair storage cylinder to be stored, a blade is arranged in the collecting sleeve and does not make direct contact with the skin, and the hair collecting mechanism is simple in structure and convenient to use. Therefore, the safety of hair collection can be remarkably improved, the scalp of a target person cannot be scratched, the hair sampling device is a disposable article, is packaged through a vacuum bag, does not need to be disinfected before being used, integrates cutting, tightening, collecting and storing of hair, can remarkably reduce the working process of hair sampling, is simple to operate, and is beneficial to improving the working efficiency of forensic hair sampling.

Description

Technical Field

[0001] The utility model relates to the technical field of hair sampling, in particular to a hair sampling device for forensic identification. Background Art

[0002] Before conducting a DNA test, forensic doctors will first collect hair from the target person and send the collected hair samples for inspection. Currently, the hair collection tools commonly used by forensic doctors include scissors, aluminum foil, tie bands, packaging bags, disposable gloves, rulers, sterile cotton balls, markers, etc. Before taking hair samples, first use sterile cotton balls to wipe and disinfect the scissors, use the scissors to cut along the roots of the hair, tie the cut hair neatly with a tie band, wrap it with aluminum foil, put it in a packaging bag, and finally write a mark on the packaging bag. The above common forensic hair collection methods have the following shortcomings in actual applications:

[0003] When cutting hair along the roots using scissors, the tip of the scissors can easily pierce the scalp of the target person, posing a certain safety hazard. In addition, each hair sampling requires a series of steps such as disinfection, binding, and packaging. The hair sampling process is complicated and the sampling efficiency is low. Utility Model Content

[0004] The utility model aims to provide a hair sampling device for forensic identification, so as to solve the problems of potential safety hazards, complicated sampling process and low sampling efficiency in the existing forensic hair sampling method mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hair sampling device for forensic identification, comprising a hair storage tube and an externally threaded head fixedly arranged on the top of the hair storage tube, the externally threaded head is provided with a hair collection mechanism for cutting and tightening hair, the hair collection mechanism comprises a first collection sleeve and a second collection sleeve and a third collection sleeve hinged on the first collection sleeve, a cutter assembly is fixedly installed between the first collection sleeve and the second collection sleeve, a compression rubber pad is fixedly arranged between the first collection sleeve and the third collection sleeve, a clamping assembly is arranged between the second collection sleeve and the third collection sleeve, a card insertion slot is opened on one side of the front side of the first collection sleeve, and a card insertion buckle is fixedly arranged on the front side of the second collection sleeve, and the card insertion buckle is arranged directly opposite to the card insertion slot.

[0006] Preferably, the bottom ends of the first collection sleeve and the third collection sleeve are fixedly provided with a threaded sleeve, and the threaded sleeve is threadedly connected to the external threaded head; the hair is efficiently packaged after sampling.

[0007] Preferably, the cutter assembly includes a cutter seat and a cutter slot arranged opposite to the cutter seat, a cutting blade is fixedly mounted on the cutter seat, the cutter slot is fixedly mounted on the first collection sleeve, and the cutter seat is fixedly mounted on the second collection sleeve; hair sampling is safe, stable and reliable.

[0008] Preferably, the clamping assembly includes a slide groove provided on the outer surface of the second collection sleeve, a card insertion piece is slidably provided on the inner side of the slide groove, and a card insertion slot is provided on the top of the third collection sleeve, and the card insertion slot matches the card insertion piece; the second collection sleeve and the third collection sleeve can be flipped and unfolded to facilitate the inspection of the hair after sampling.

[0009] Preferably, a shallow groove is provided in the middle of the compression rubber pad, which can bind and compress the cut hair so that it will not become loose when being transferred for inspection.

[0010] Preferably, a label is attached to the outer surface of the hair storage tube, so that the forensic doctor can write a mark after sampling.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The forensic hair collection device uses a hair storage tube to store the collected hair. The hair collection mechanism replaces the traditional scissors. After the hair is cut from the root, it will be automatically compressed. The cut hair ends are neat and can be directly put into the hair storage tube for storage. The blade is set in the collection sleeve and will not directly contact the skin, thereby significantly improving the safety of hair collection and will not scratch the scalp of the target person.

[0013] The hair removal device is a disposable item, which is packaged in a vacuum bag and does not require disinfection before use. It integrates hair cutting, bundling, collection and storage in one device, which can significantly reduce the workflow of hair sampling. It is easy to operate and is conducive to improving the efficiency of forensic hair sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the hair removal device of the utility model;

[0015] Figure 2 This is a schematic diagram of the unfolded structure of the hair collection mechanism of the utility model;

[0016] Figure 3 This is a schematic diagram of the disassembled structure of the hair removal device of the utility model;

[0017] Figure 4 This is a schematic diagram of the semi-open structure of the hair collection mechanism of the utility model;

[0018] Figure 5 It is an enlarged view of part A of the utility model.

[0019] In the figure: 1. hair storage tube; 2. external thread head; 3. hair collection mechanism; 31. first collection sleeve; 32. second collection sleeve; 33. third collection sleeve; 34. cutting knife slot; 35. cutting knife seat; 36. cutting blade; 37. card buckle; 38. card slot; 39. pressing rubber pad; 310. shallow groove; 311. threaded sleeve; 312. card slot; 313. slide slot; 314. card piece; 4. label. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 1-5 The utility model provides a hair sampling device for forensic identification, comprising a hair storage tube 1 and an external threaded head 2 fixedly arranged at the top of the hair storage tube 1, a hair collection mechanism 3 for cutting and tightening hair is arranged on the external threaded head 2, the hair collection mechanism 3 comprises a first collection sleeve 31 and a second collection sleeve 32 and a third collection sleeve 33 hinged on the first collection sleeve 31, a cutter assembly is fixedly installed between the first collection sleeve 31 and the second collection sleeve 32, a compression rubber pad 39 is fixedly arranged between the first collection sleeve 31 and the third collection sleeve 33, a clamping assembly is arranged between the second collection sleeve 32 and the third collection sleeve 33, a card insertion slot 38 is opened on one side of the front of the first collection sleeve 31, a card insertion buckle 37 is fixedly arranged on the front of the second collection sleeve 32, the card insertion buckle 37 is arranged opposite to the card insertion slot 38, a shallow groove 310 is opened in the middle of the compression rubber pad 39, and a label 4 is pasted on the outer surface of the hair storage tube 1.

[0022] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 Further, the bottom ends of the first collection sleeve 31 and the third collection sleeve 33 are fixedly provided with a threaded sleeve 311, the threaded sleeve 311 is threadedly connected to the external thread head 2, the cutter assembly includes a cutter seat 35 and a cutter groove 34 arranged opposite to the cutter seat 35, a cutting blade 36 is fixedly installed on the cutter seat 35, the cutter groove 34 is fixedly installed on the first collection sleeve 31, and the cutter seat 35 is fixedly installed on the second collection sleeve 32;

[0023] When in use, the hair storage tube 1 and the corresponding hair collection mechanism 3 are both disposable items. When taking hair samples, there is no need for disinfection. After unfolding the collection sleeve, the first collection sleeve 31 can be directly pressed against the root of the hair to cut it. The operation is simple, safe and reliable, and will not scratch the scalp of the target person.

[0024] See also Figure 1 and Figure 4Further, the clamping assembly includes a slide groove 313 provided on the outer surface of the second collection sleeve 32, a card inserting member 314 is slidably provided on the inner side of the slide groove 313, and a card inserting slot 312 is provided on the top of the third collection sleeve 33, and the card inserting slot 312 matches the card inserting member 314;

[0025] When in use, push the card inserting member 314 upward along the slide groove 313 to disengage the card inserting member 314 from the card inserting slot 312, and then the third collecting sleeve 33 can be flipped over separately to remove neatly arranged hairs from the compressed pressing rubber pad 39. The identification process does not require opening the second collecting sleeve 32, and the cutting blade 36 is always sealed in the cutting seat 35 and the cutting slot 34, which is safer.

[0026] When the embodiment of the present application is used: when collecting hair from a target person, the forensic doctor wears disposable gloves, takes out the hair collection device, tears off the vacuum packaging bag, unscrews the hair collection mechanism 3 from the external thread head 2 by twisting, detent buckles 37 are pressed from the outside of the card insertion slot 38 to disengage the card insertion slot 38, and the second collection sleeve 32 and the third collection sleeve 33 are opened. The hair of the target person is twisted into a bundle and placed on the shallow groove 310, so that the first collection sleeve 31 is close to the root of the hair, and the second collection sleeve 32 is closed. When the second collection sleeve 32 is closed, the cutting blade 36 is inserted into the opposite cutting groove 34 to cut the hair from the root. At the same time, the two pressing rubber pads 39 press the whole bundle of hair to prevent it from loosening. Then, the bottom of the hair is facing the hair storage tube 1, the hair is loaded into the hair storage tube 1, the hair collection mechanism 3 is screwed on, and a mark is written on the label 4.

[0027] When the forensic doctor is identifying the hair, he first unscrews and removes the hair collection mechanism 3, pinches the middle part of the hair, and directly pushes the card member 314 up along the slide groove 313 to disengage the card member 314 from the card slot 312. Then, he can flip the third collection sleeve 33 alone to remove the neatly-formed hair from the compressed rubber pad 39. The operation is simple, safe and stable.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hair sampling device for forensic identification, comprising a hair storage tube (1) and an external threaded head (2) fixedly arranged at the top of the hair storage tube (1), characterized in that: The external threaded head (2) is provided with a hair collecting mechanism (3) for cutting and tightening hair. The hair collecting mechanism (3) comprises a first collecting sleeve (31) and a second collecting sleeve (32) and a third collecting sleeve (33) hinged on the first collecting sleeve (31). A cutting knife assembly is fixedly installed between the first collecting sleeve (31) and the second collecting sleeve (32). A pressing rubber pad (39) is fixedly arranged between the first collecting sleeve (31) and the third collecting sleeve (33). A clamping assembly is arranged between the second collecting sleeve (32) and the third collecting sleeve (33). A card insertion slot (38) is provided on one side of the front face of the first collecting sleeve (31). A card insertion buckle (37) is fixedly arranged on the front face of the second collecting sleeve (32). The card insertion buckle (37) is arranged directly opposite to the card insertion slot (38).

2. A hair sampling device for forensic identification according to claim 1, characterized in that: A threaded sleeve (311) is fixedly provided at the bottom end of each of the first collection sleeve (31) and the third collection sleeve (33), and the threaded sleeve (311) is threadedly connected to the external thread head (2).

3. A hair sampling device for forensic identification according to claim 1, characterized in that: The cutter assembly comprises a cutter seat (35) and a cutter slot (34) arranged opposite to the cutter seat (35); a cutting blade (36) is fixedly mounted on the cutter seat (35); the cutter slot (34) is fixedly mounted on the first collection sleeve (31); and the cutter seat (35) is fixedly mounted on the second collection sleeve (32).

4. A hair sampling device for forensic identification according to claim 1, characterized in that: The clamping assembly includes a slide groove (313) provided on the outer surface of the second collection sleeve (32), a card insertion piece (314) is slidably provided on the inner side of the slide groove (313), and a card insertion slot (312) is provided at the top end of the third collection sleeve (33), and the card insertion slot (312) matches the card insertion piece (314).

5. A hair sampling device for forensic identification according to claim 1, characterized in that: A shallow groove (310) is formed in the middle of the compression rubber pad (39).

6. A hair sampling device for forensic identification according to claim 1, characterized in that: The outer surface of the hair storage tube (1) is provided with a label (4).

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