CN216955193U

CN216955193U - Trace material evidence extraction element

Info

Publication number: CN216955193U
Application number: CN202122050250.4U
Authority: CN
Inventors: 李艳超; 陈建宏; 武岩岩
Original assignee: BEIJING MUNICIPAL PUBLIC SECURITY BUREAU
Current assignee: BEIJING MUNICIPAL PUBLIC SECURITY BUREAU
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-07-12
Anticipated expiration: 2031-08-30

Abstract

The utility model discloses a trace material evidence extraction device, which comprises a bottle body, a tool bit and a bottle cap, wherein: the whole bottle body is tubular, the bottom of the bottle body is closed, and the opening of the bottle body is provided with a section of thread; the whole tool bit is in a hollow tubular shape, the tool bit is made of metal materials, a cutting edge is machined at the head of the tool bit, and a section of thread is arranged at the tail of the tool bit; the bottle cap is provided with a section of thread; the thread at the tail part of the tool bit and the thread of the bottle cap are respectively matched with the thread at the opening part of the bottle body. The utility model has the advantages of exquisite design, simple disassembly and assembly of parts, easy operation of the material evidence extraction process, small volume of the material evidence storage tube and convenient carrying.

Description

Trace material evidence extraction element

Technical Field

The utility model relates to the field of material evidence inspection, in particular to a trace material evidence extraction device.

Background

The proportion of trace material evidence inspection in the field of judicial material evidence inspection is continuously increased, and the supporting effect on daily case handling is gradually enhanced. The trace substance is small and tiny, so the trace substance is easy to damage and lose during extraction; therefore, the extraction of trace physical evidence becomes one of the important problems faced by physical evidence extractors, especially the phenomena of blade fracture, physical evidence damage and even loss easily occur when physical evidence such as paint coating, rubber, plastic, printing ink, adhesive and the like are extracted by using the traditional scalpel.

Therefore, the utility model provides the trace material evidence extraction device which can completely reserve the morphological characteristics of the material evidence and is convenient for the treatment and the inspection of the material evidence.

SUMMERY OF THE UTILITY MODEL

In order to realize the purpose of the utility model, the following technical scheme is adopted for realizing the purpose:

the utility model provides a trace material evidence extraction element, includes bottle, tool bit and bottle lid, wherein: the whole bottle body is tubular, the bottom of the bottle body is closed, and the opening of the bottle body is provided with a section of thread; the whole tool bit is in a hollow tubular shape, the tool bit is made of metal materials, a cutting edge is machined at the head of the tool bit, and a section of thread is arranged at the tail of the tool bit; the bottle cap is provided with a section of thread; the thread at the tail part of the tool bit and the thread of the bottle cap are respectively matched with the thread at the opening part of the bottle body.

The trace material evidence extraction element, wherein: the lower part of the bottle body is provided with a section of screw thread, the tail part of the cutter head and the screw thread of the bottle cap are respectively matched with the screw thread of the lower part of the bottle body, and the cutter head and the bottle cap are respectively arranged on the opening part of the bottle body or one of the lower parts of the bottle body.

The trace material evidence extraction element, wherein: the novel screwdriver head is characterized by further comprising a screwdriver head cover, and the screwdriver head cover is used for covering the screwdriver head.

The trace material evidence extraction element, wherein: the bottle body and the bottle cap are both made of transparent materials.

The trace material evidence extraction element, wherein: the bottle body is provided with a plurality of scale marks and scale values.

The trace material evidence extraction element, wherein: the body of the bottle body is adhered with label paper.

The trace material evidence extraction element, wherein: the cutting edge of the cutter head is an arc-shaped cutting edge.

The trace material evidence extraction element, wherein: the cutting edge of the cutter head extends outwards from the head of the cutter head and is in a flat and sharp shape.

The trace material evidence extraction element, wherein: the screw thread of tool bit and bottle lid is external screw thread or internal thread, and is corresponding with it, and the screw thread of bottle oral area and bottle lower part is internal thread or external screw thread, and the screw thread of tool bit and bottle lid and the screw thread of bottle oral area and bottle lower part are mutually supported.

The trace material evidence extraction element, wherein: the bottle body is in a cylindrical tube shape.

Drawings

FIG. 1 is a schematic view of a trace material evidence extraction device;

FIG. 2 is a perspective view of the mechanism of the trace material evidence extraction device;

fig. 3 is a schematic view of a tip with a pointed edge.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings of fig. 1-3.

As shown in fig. 1 and 2, the device for extracting trace physical evidence comprises a bottle body 1, a tool bit 2, a bottle cap 3 and a tool bit cap 4. The bottle body 1, the bottle cap 3 and the cutter head cap 4 are all made of transparent materials such as plastics, and the cutter head 2 is made of metal materials such as stainless steel and the like.

The whole bottle body 1 is in a cylindrical tube shape, the bottom of the bottle body is closed, a section of thread 13 is arranged at the lower part of the bottle body, and a section of thread is also arranged at the opening part of the bottle body; the cap 3 is provided with a section of thread. As shown in fig. 1, a plurality of parallel scale marks 11 and scale values (not shown) are provided on the bottle body 1 at the same interval, and a label paper 12 is adhered on the body of the bottle body 1.

The whole tool bit 2 is hollow and tubular, the head of the tool bit is provided with a cutting edge 21, the tail of the tool bit is provided with a section of thread 22, and the cutting edge 21 is an arc-shaped cutting edge as shown in figure 2. As shown in fig. 3, the cutting edge 21 of the cutting head 2 is a pointed cutting edge, the cutting edge 21 extends outwards from the head of the cutting head and is in the shape of a flat pointed end, the cutting head in the shape can be used for scraping off a strong interfering object attached to the surface of a material evidence, and the tail of the cutting head 2 is also provided with a thread section 22.

The screw thread of tool bit 2, bottle lid 3 can be external screw thread or internal thread, and corresponding with it, the screw thread of bottleneck portion and bottle bottom is internal screw thread or external screw thread, and the screw thread of tool bit 2, bottle lid 3 mutually supports with the screw thread of bottle mouth portion and bottle bottom.

When the trace physical evidence extraction device is stored daily, the cutter head is in threaded connection with the opening of the bottle body, and the cutter head is covered on the cutter head, so that hands are prevented from being scratched; the bottle lid threaded connection prevents that the bottle lid from losing on the bottle bottom. The cutter head cover is taken down during working, the cutter head is utilized to directly extract trace physical evidence, the extracted trace physical evidence can directly fall into the bottle body, then the cutter head is detached, the bottle cover is covered on the bottle mouth part and screwed, the cutter head is arranged on the bottom of the bottle, and the cutter head is used for covering the bottle. The place, time, person and the like of the extracted material evidence written on the label paper. The scale marks and the like on the bottle body can be used for marking whether the extraction amount of the physical evidence is enough or not.

The utility model has the advantages of ingenious design, simple disassembly and assembly of parts, easy operation of the material evidence extraction process, small volume of the material evidence storage tube and convenient carrying.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and any equivalent replacement or modification without departing from the technical scope of the present invention is included in the scope of the present invention.

Claims

1. The utility model provides a trace material evidence extraction element, includes bottle, tool bit and bottle lid, its characterized in that: the whole bottle body is tubular, the bottom of the bottle body is closed, and the opening of the bottle body is provided with a section of thread; the whole tool bit is in a hollow tubular shape, the tool bit is made of metal materials, the head of the tool bit is provided with a cutting edge, and the tail of the tool bit is provided with a section of thread; the bottle cap is provided with a section of thread; the thread at the tail part of the tool bit and the thread of the bottle cap are respectively matched with the thread at the opening part of the bottle body.

2. The micro physical evidence extraction device according to claim 1, characterized in that: the lower part of the bottle body is provided with a section of screw thread, the tail part of the cutter head and the screw thread of the bottle cap are respectively matched with the screw thread of the lower part of the bottle body, and the cutter head and the bottle cap are respectively arranged on the opening part of the bottle body or one of the lower parts of the bottle body.

3. The micro physical evidence extraction device according to claim 1 or 2, characterized in that: the cutter head cover is used for covering the cutter head.

4. The micro physical evidence extraction device according to claim 1 or 2, characterized in that: the bottle body and the bottle cap are both made of transparent materials.

5. The micro physical evidence extraction device according to claim 1 or 2, characterized in that: the bottle body is provided with a plurality of scale marks and scale values.

6. The micro physical evidence extraction device according to claim 1 or 2, characterized in that: the body of the bottle body is adhered with label paper.

7. The micro physical evidence extraction device according to claim 1 or 2, characterized in that: the cutting edge of the cutter head is an arc-shaped cutting edge.

8. The micro physical evidence extraction device according to claim 1 or 2, characterized in that: the cutting edge of the cutter head extends outwards from the head of the cutter head and is in a flat and pointed shape.

9. The micro physical evidence extraction device according to claim 1 or 2, characterized in that: the threads of the tool bit and the bottle cap are external threads or internal threads, and correspondingly, the threads of the opening part of the bottle body and the lower part of the bottle body are internal threads or external threads, and the threads of the tool bit and the bottle cap are matched with the threads of the opening part of the bottle body and the lower part of the bottle body.

10. The micro physical evidence extraction device according to claim 1 or 2, characterized in that: the bottle body is in a cylindrical tube shape.