CN219178931U - Portable micro-material evidence extraction device - Google Patents
Portable micro-material evidence extraction device Download PDFInfo
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- CN219178931U CN219178931U CN202222565800.0U CN202222565800U CN219178931U CN 219178931 U CN219178931 U CN 219178931U CN 202222565800 U CN202222565800 U CN 202222565800U CN 219178931 U CN219178931 U CN 219178931U
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Abstract
The utility model relates to a portable micro-material evidence extraction device, which comprises a cover body, a sampler and at least two cavities, wherein the inner wall of the top of each cavity is provided with internal threads, the outer wall of the bottom of each cavity is provided with external threads matched with the internal threads, and the bottoms and the tops of adjacent cavities are sequentially connected through threads; the outer wall of the cover body is provided with external threads matched with the internal threads, and the cover body is in threaded connection with the top of the cavity at the top end; the sampler comprises a handle and a Rong Yangjian, the bottom end of the handle penetrates through the through hole and stretches into the cavity, the sample containing piece is connected to the bottom end of the handle and is positioned in the cavity, and the sample containing piece is provided with an immersion liquid hole; its integral type seal structure is convenient for this extraction element and examine material and solvent's integral type and take or deposit, is convenient for operate through the handle, and portable to investigation scene draws on spot, improves operating efficiency, avoids examining material loss or pollution, and application scope is extensive, can be used to draw multiple type and examine the material.
Description
Technical Field
The utility model relates to the technical field of material evidence identification, in particular to a portable micro-material evidence extraction device.
Background
At present, the supporting effect of trace material evidence in case investigation and court trial is increasingly remarkable, especially in serious cases such as explosion, fire, gun involvement and the like. The explosive and its explosive residue, combustion improver and its combustion residue, gun powder and shooting residue, oil and fat are conventional trace material type, and the effective extraction of organic and inorganic components is the precondition for realizing inspection and identification.
In the prior art, trace material evidence extraction has the following problems:
1. the laboratory draws the flow loaded down with trivial details, needs to consume more experimental consumable and solvent, and the extraction element that uses is mostly split type structure, is inconvenient for integral type to take or deposit, reduces operating efficiency.
2. Because the material is mainly inspected by means of delivery, the loss and cross pollution are slightly easy to be caused by the small body with trace material evidence, and the inflammable and explosive material is inconvenient to carry.
Disclosure of Invention
Aiming at least one problem in the prior art, the utility model aims to provide a portable micro-material evidence extraction device, which can conveniently, efficiently and environmentally-friendly extract organic and inorganic components through an improved integrated and closed structure, is suitable for portable sending inspection of inflammable and explosive detection materials, is convenient to carry to a investigation site for on-site extraction, or is volatilized for sending inspection after extraction.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a portable micro-material evidence extraction device, comprising:
at least two cylindrical cavities, wherein the inner wall of the top is provided with internal threads, the outer wall of the bottom is provided with external threads matched with the internal threads, and the bottoms of adjacent cavities are sequentially connected with the top through threads;
the outer wall of the cover body is provided with an external thread matched with the internal thread, and the cover body is in threaded connection with the top of the cavity at the top end;
the sampler comprises a handle and a sample containing piece, wherein the bottom end of the handle penetrates through the through hole and stretches into the cavity, the sample containing piece is connected to the bottom end of the handle and is located in the cavity, and the sample containing piece is provided with an immersion liquid hole.
Preferably, the inner wall of the cavity is provided with an annular boss for covering the membrane.
Preferably, a sealing film is coated on the annular boss.
Preferably, the sealing film is provided with a tear-open portion.
Preferably, the tear-open portion is provided at the edge of the sealing film.
Preferably, the external thread of the outer wall of the cover is provided at the bottom.
Preferably, the sample receiving member is a flat plate, and the immersion liquid Kong Kaishe is on the flat plate.
Preferably the plate edge is connected with an upward annular projection.
Preferably, the sample containing piece is a tube body with a closed bottom, a sealing plug body is arranged at the bottom end of the handle, the sealing plug body is plugged into an opening at the top of the tube body, and immersion liquid Kong Kaishe is arranged on the side wall and the bottom wall of the tube body.
Preferably, the bottom of the pipe body is conical.
Due to the adoption of the technical scheme, the utility model has the following advantages:
the portable trace material evidence extraction device provided by the utility model is used for sequentially connecting the cavities for storing organic and inorganic component extraction solvents, and the cover body connected with the cavity at the top end forms an integrated sealing structure, so that the integrated taking or storing of the extraction device is facilitated, and the integrated taking or storing of the detection material in the sample piece and the solvent in the cavity in the extraction device is also facilitated; the sampling part comprises a handle and a sampler connected with the bottom end of the handle, so that the sampler is convenient for placing a detection material, is convenient for operation through the handle, is suitable for portable sending detection of inflammable and explosive detection materials, is convenient for carrying to a investigation site for extraction on site; the immersion liquid holes are formed in the sample containing piece, the sample containing piece containing the detection materials is conveniently stretched into a solvent stored in the cavity through the handheld handle to be extracted and then volatilized for inspection, the operation efficiency is improved, the loss or pollution of the detection materials is avoided, and the immersion liquid device is wide in application range and can be used for extracting various detection materials.
Drawings
FIG. 1 is a schematic diagram of a portable micro-scale physical evidence extraction device according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a portable micro-material evidence extraction device according to another embodiment of the present utility model;
fig. 3 is a schematic cavity structure of a portable micro-material evidence extraction device according to an embodiment of the utility model.
The reference numerals in the drawings:
1 is a cavity, 101 is an annular boss, 102 is a sealing film, 2 is a cover, 301 is a handle, 302 is a sample receiving piece, 303 is a immersion liquid hole, 304 is an annular boss, and 4 is a solvent.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "front", "rear", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
According to the portable micro-material evidence extraction device provided by the utility model, through the improved integrated and closed structure with the plurality of cavities 1 connected in sequence, organic and inorganic components can be extracted conveniently, efficiently and environmentally-friendly, and the portable micro-material evidence extraction device is suitable for portable sending and detecting of inflammable and explosive detection materials; the solvent is contained in the cavity 1, the detection material is contained in the cavity Rong Yangjian, the sample containing piece extending into the cavity 1 is operated through the handle, and the detection material is conveniently carried about to be extracted on site in a investigation site or volatilized for detection after extraction.
Hereinafter, embodiments of the present utility model will be described in detail with reference to the accompanying drawings.
Examples
Referring to fig. 1 or 2, the portable micro-material evidence extraction device provided in this embodiment includes a cavity 1, a cover 2 and a sampler, wherein the number of the cavities 1 is at least two, an inner wall of a top is provided with an inner thread, an outer wall of a bottom is provided with an outer thread matched with the inner thread, and the bottoms and the tops of adjacent cavities 1 are sequentially connected by threads;
the outer wall of the cover body 2 is provided with external threads matched with the internal threads, and the cover body 2 is in threaded connection with the top of the cavity 1 at the top end;
the sampler comprises a handle 301 and a handle Rong Yangjian, wherein the bottom end of the handle 301 penetrates through the through hole and stretches into the cavity 1, a sample containing piece 302 is connected to the bottom end of the handle 301 and is positioned in the cavity 1, and the sample containing piece 302 is provided with an immersion liquid hole 303.
According to the portable micro-material evidence extraction device, the cavities 1 are convenient to connect and detach, and the sealing performance is good after connection. And an appropriate amount of organic and inorganic component extraction solvent 4 is stored in the cavity 1. For example, when the number of the cavities 1 is three, diethyl ether for extracting the oil phase, acetone for extracting the organic residue, and water for extracting the inorganic residue may be stored respectively; the top of the cavity for respectively storing the three solvents 4 can be respectively covered with a sealing film 102 for sealing, so that the solvents 4 are prevented from leaking or volatilizing, and the sealing film 102 can be directly torn when the solvents 4 are used.
The cover body 2 is connected and sealed with the first cavity 1 at the top end.
The handle 301 is connected with the sample containing piece 302 to form a sampler, the sample containing piece 302 is used for containing the detection material and extends into the cavity 1, and the sample containing piece 302 is provided with an immersion liquid hole 303, so that the detection material can be immersed into the solvent 4 in the cavity 1. The number of the immersion holes 303 may be at least two, and the plurality of the immersion holes 303 may be uniformly distributed. The holding handle 301 can operate the sample holding piece 302 to move downwards or upwards in the cavity 1, so that the sample holding piece 302 is lowered into the solvent 4 in the cavity 1 to infiltrate or is separated from the solvent 4 upwards to realize extraction, and extraction efficiency is promoted. After one solvent 4 is extracted, the cover 2 and the sampler can be removed, and the cover 2 and the sampler can be connected and mounted on the cavity 1 for storing the other solvent 4.
In order to facilitate remote transportation, solvent 4 may be volatilized for inspection and only reconstituted after entering the laboratory.
As shown in fig. 3, an annular boss 101 for covering a film can be arranged on the inner wall of the cavity 1, and a sealing film 102 is covered on the annular boss 101, so that the edge of the sealing film 102 is conveniently attached to the annular boss 101 through an adhesive layer, and sealing of the solvent 4 in the cavity 1 is realized.
The side wall of the annular boss 101 can extend to the bottom surface of the cavity 1, so that the solvent 4 in the cavity 1 can be poured out after being used, and the cavity 1 can be cleaned conveniently.
The sealing film 102 can be provided with a tearing part, so that the sealing film 102 is conveniently torn, and the handle 301 is operated to move the sample containing piece 302 into the solution in the cavity 1, so that the sample containing piece 302 is soaked. The tear-off portion may be provided at the edge of the sealing film 102.
The external screw thread of lid 2 outer wall can set up in the bottom, and the lid 2 bottom of being convenient for passes through threaded connection first cavity 1 top at top.
As shown in FIG. 1, the sample holder 302 may be a plate with the immersion liquid holes 303 open in the plate.
When in use, the detection material is placed on the flat plate. At this time, the sealing film 102 on the cavity 1 can be torn off, and then the sampler extends into the cavity 1, and the cover 2 is connected with the cavity 1 in a threaded manner. Then, the operation handle 301 moves downward to push the flat plate and the sample on the flat plate to infiltrate into the solvent 4.
The portable micro-material evidence extraction device is particularly suitable for large-sample-quantity micro-material evidence, for example:
(1) Explosive residues such as explosive dust, smoke mark detection materials, explosive packages, clothes of dead wounded persons and the like;
(2) Fire scene residues, lower soil, dead bedding clothing and other fire scene residues;
(3) Suspects or dead casualties may leave behind shooting residue sites.
This portable micro-material evidence extraction element, dull and stereotyped edge can be connected with ascending annular protrusion 304 to block the material of examining of placing on the dull and stereotyped, avoid examining the material and drop. The plate may be a circular plate and the bottom end of the handle 301 may be attached at the center of the plate. The annular protrusion 304 may be a circular ring and may be rectangular in vertical cross-section.
As shown in fig. 2, the sample container 302 may be a tube with a closed bottom, the bottom end of the handle 301 is provided with a sealing plug body, the sealing plug body is plugged into the top opening of the tube, and the immersion liquid holes 303 are formed in the side wall and the bottom wall of the tube.
When in use, the detection material is placed in the tube body. At this time, the cavity 1 covered with the sealing film 102 can be connected with the cover body 2 in a threaded manner, and the sampler is arranged in the cavity 1 and above the sealing film 102; then the handle 301 moves downwards to push the tube body to move downwards to puncture the sealing film 102 on the cavity 1, and then the tube body is further pushed to move downwards, so that the detection material in the tube body is soaked into the solvent 4.
The portable micro-material evidence extraction device is particularly suitable for small-sample-amount micro-material evidence, for example:
(1) Explosive raw materials or small explosive residues;
(2) Extracting liquid or small amount of combustion residues from the fire;
(3) The suspects or dead wounds may leave behind a shot residue site wipe or small amounts of tiny shot residues.
The bottom of the tube body of the portable micro-material evidence extraction device is conical, so that the sealing film 102 can be conveniently pierced. The pipe body can be a circular pipe, and the bottom can be conical.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A portable micro-material evidence extraction device, comprising:
at least two cylindrical cavities (1), wherein the inner wall of the top is provided with internal threads, the outer wall of the bottom is provided with external threads matched with the internal threads, and the bottoms and the tops of adjacent cavities (1) are sequentially in threaded connection;
the outer wall of the cover body (2) is provided with an external thread matched with the internal thread, and the cover body (2) is in threaded connection with the top of the cavity (1) at the top end;
the sampler comprises a handle (301) and a handle (Rong Yangjian) (302), wherein the bottom end of the handle (301) penetrates through the through hole and stretches into the cavity (1), the Rong Yangjian (302) is connected to the bottom end of the handle (301) and located in the cavity (1), and the Rong Yangjian (302) is provided with an immersion liquid hole (303).
2. The portable micro-material evidence extraction device according to claim 1, characterized in that the inner wall of the cavity (1) is provided with an annular boss (101) for coating.
3. The portable micro-material evidence extraction device according to claim 2, characterized in that the annular boss (101) is coated with a sealing film (102).
4. A portable trace physical evidence extraction apparatus according to claim 3, wherein the sealing film (102) is provided with a tear-off portion.
5. The portable micro-material evidence extraction device according to claim 4, wherein the tear-off portion is provided at an edge of the sealing film (102).
6. The portable micro-material evidence extraction device according to claim 1, characterized in that the external thread of the outer wall of the cover body (2) is arranged at the bottom.
7. The portable micro-material evidence extraction device according to any one of claims 1-6, wherein the Rong Yangjian (302) is a plate, and the immersion liquid holes (303) are opened on the plate.
8. The portable micro-material evidence extraction device according to claim 7, wherein the plate edge is connected with an upward annular protrusion (304).
9. The portable micro-material evidence extraction device according to any one of claims 1-6, wherein the Rong Yangjian (302) is a tube with a closed bottom, a sealing plug body is arranged at the bottom end of the handle (301), the sealing plug body is plugged into an opening at the top of the tube, and the immersion liquid holes (303) are formed in the side wall and the bottom wall of the tube.
10. The portable trace physical evidence extraction apparatus according to claim 9, wherein the bottom of the tube body is tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222565800.0U CN219178931U (en) | 2022-09-27 | 2022-09-27 | Portable micro-material evidence extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222565800.0U CN219178931U (en) | 2022-09-27 | 2022-09-27 | Portable micro-material evidence extraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219178931U true CN219178931U (en) | 2023-06-13 |
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ID=86662996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222565800.0U Active CN219178931U (en) | 2022-09-27 | 2022-09-27 | Portable micro-material evidence extraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219178931U (en) |
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- 2022-09-27 CN CN202222565800.0U patent/CN219178931U/en active Active
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