Field trace extraction device
By designing a site trace extraction device for storage boxes, left storage boxes, right storage boxes, drying frames and cooling frames, the problem of inconvenience in storage of existing devices is solved, convenient storage and stable storage of substances and tools is achieved, and the quality and safety of extracted substances are ensured.
Patent Information
- Application Number
- CN202422764116.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-11-13
AI Technical Summary
The existing on-site trace extraction devices lack independent storage and operating structures, which leads to inconvenience in extraction and storage, and the inability to freely choose the storage environment according to the storage conditions of trace extracted substances, limiting the function of the device.
A field trace extraction device including a storage box, a left storage box, a right storage box, a drying box and a cooling box is designed, which are respectively used to place extracted substances with different environmental requirements, and the recovery of tools and stable storage of substances are achieved through structures such as limiting pins and protective films.
It realizes fast and convenient storage and access of substances and tools, and can choose a suitable storage environment according to needs, ensure the quality and safety of extracted substances, and avoid pollution and deterioration.
Smart Images

Figure CN223279544U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of on-site investigation, and in particular to an on-site trace extraction device. Background Art
[0002] Scene trace extraction devices are a type of equipment widely used in forensic medicine, environmental monitoring, accident investigation and other fields. They are designed to effectively collect and preserve various types of trace evidence. These devices can extract traces such as fingerprints, footprints, fibers, chemical residues and biological samples, ensuring that the evidence is not damaged or contaminated during the collection process. Through efficient extraction technology and scientific methods, scene trace extraction devices provide important support for subsequent analysis and identification, helping professionals to more comprehensively understand the truth of the incident and promote scientific investigation and judicial justice.
[0003] At present, the relevant on-site trace extraction devices lack independent storage, operation and recovery structures. When performing trace extraction and storage, it is not easy for staff to extract and store traces more conveniently, and it is not easy for staff to freely choose the storage environment according to the storage conditions of the trace extraction materials, which limits the function of the device. Utility Model Content
[0004] In order to solve the problems raised in the above background technology, the present application provides an on-site trace extraction device.
[0005] The present application provides a field trace extraction device that adopts the following technical solution:
[0006] A field trace extraction device comprises a storage box, a right storage box and a box body, an operating table is movably installed on the top of the inside of the box body, a sweeping brush is movably installed inside the operating table, a collection box is movably installed inside the box body at the bottom of the sweeping brush, a scraper is movably installed inside the box body on one side of the collection box, a storage box is movably installed inside the box body at the bottom of the operating table, a shaft is movably installed on one side of the inside of the storage box, a protective film is movably installed on the periphery of the shaft rod, a left storage box is movably installed on one side of the inside of the box body, a drying frame is movably installed inside the left storage box, a right storage box is movably installed on the other side of the inside of the box body, a cooling frame is movably installed inside the right storage box, limiting bolts are movably installed between the left storage box, the right storage box and the storage box and the box body, and a protective cover is movably installed on the top of the box body.
[0007] Preferably, both sides of the storage box are fixedly connected with limiting blocks, and the limiting blocks are embedded in the box body.
[0008] Preferably, the bottoms of the left storage box and the right storage box are fixedly connected with positioning blocks, and the positioning blocks are embedded in the box body.
[0009] Preferably, a connecting block is fixedly connected to the top of the protective cover, and a handle is movably installed on the inner side of the connecting block.
[0010] Preferably, a protective plate is movably mounted on the top of the left storage box and the right storage box, and a handle is fixedly connected to the top of the protective plate.
[0011] In summary, this application has the following beneficial technical effects:
[0012] Through the arrangement of the storage box, the left storage box, the right storage box, the drying frame and the cooling frame, the extracted materials and tools can be quickly taken and stored, and the extracted materials can be placed in the left storage box and the right storage box in different environments for storage according to needs, so as to be more convenient for the staff to perform extraction operations and the storage and recovery of extracted materials and tools, and it is also convenient to freely select the storage environment according to the storage conditions of the trace extracted materials, thereby ensuring the quality of the extracted materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the structural decomposition of an embodiment of the application;
[0014] Figure 2 It is an overall three-dimensional diagram of an embodiment of the application;
[0015] Figure 3 It is a schematic diagram of the partial structure of the box and the operating table of the embodiment of the application.
[0016] Explanation of the accompanying symbols: 1. Drying frame; 2. Left storage box; 3. Storage box; 301. Limit block; 4. Shaft; 5. Protective film; 6. Right storage box; 601. Positioning block; 7. Protective plate; 8. Limit bolt; 9. Cooling frame; 10. Box body; 11. Operating table; 12. Scraper; 13. Collection box; 14. Brush; 15. Protective cover; 16. Handle; 1601. Connecting block. DETAILED DESCRIPTION
[0017] The following is combined with Figure 1-3 This application is described in further detail.
[0018] The embodiment of the present application discloses a device for extracting traces on the scene. Figure 1-3A field trace extraction device includes a storage box 3, a right storage box 6 and a box body 10. An operating table 11 is movably installed on the top of the box body 10. A sweeping brush 14 is movably installed inside the operating table 11. A collecting box 13 is movably installed inside the box body 10 at the bottom of the sweeping brush 14. A scraper 12 is movably installed inside the box body 10 on one side of the collecting box 13. A storage box 3 is movably installed inside the box body 10 at the bottom of the operating table 11. A shaft 4 is movably installed on one side of the storage box 3. A protective film 5 is movably installed on the periphery of the shaft 4. A left storage box 2 is movably installed on one side of the box body 10. A drying frame 1 is movably installed inside the left storage box 2. The other side of the box body 10 is movably installed. The right storage box 6 has a cooling frame 9 movably installed inside the right storage box 6, and a limit bolt 8 is movably installed between the left storage box 2, the right storage box 6 and the storage box 3 and the box body 10. A protective cover 15 is movably installed on the top of the box body 10. The staff carries the carrying device to the trace extraction site, opens the buckle between the box body 10 and the protective cover 15, pulls open the protective cover 15, tears off the Velcro on the top of the sweeping brush 14, takes out the sweeping brush 14, the collection box 13 and the scraper 12, and uses the sweeping brush 14, the collection box 13 and the scraper 12 to sweep and scrape the traces on the scene. More extraction tools can also be placed in the internal storage and use of the operating table 11. The staff can store and carry them during storage, etc. During the extraction operation, operate on the top of the operating table 11. After the extraction is completed, loosen the limit bolt 8 between the storage box 3 and the box body 10, pull out the storage box 3, place the used tools inside the storage box 3, and then pull the protective film 5 to make the protective film 5 drive the shaft 4 to rotate. The protective film 5 forms a protection on the top of the storage box 3 to achieve the recycling of the used tools, avoid the tools from contaminating the extracted substances, and make it easier for the staff to recycle the used tools. The staff loosens the limit bolt 8 between the left storage box 2 and the box body 10, and then pulls out the left storage box 2. The extracted substances that need to be dried and stored normally are placed at the two ends of the left storage box 2 respectively. The drying frame 1 contains a desiccant. , which can keep one end of the interior of the left storage box 2 in a dry state, and prevent the extracted materials that need to be dried and stored from getting damp and deteriorating. The drying frame 1 is movably installed and can be disassembled and replaced at any time. Before using the device, the cooling frame 9 can be taken out and frozen. The cooling liquid is inside the cooling frame 9, and the ice is placed in the right storage box 6 after freezing. The staff first loosens the limit bolt 8 between the right storage box 6 and the box body 10, and then places the extracted materials that need to be stored at low temperature into the right storage box 6. The right storage box 6 has built-in glass wool insulation material, which can keep the interior of the right storage box 6 in a low temperature state for a long time, thereby realizing low-temperature storage of the extracted materials that need to be stored at low temperature, and preventing the extracted materials from being affected by high temperature and deteriorating.
[0019] Reference Figure 1Both sides of the storage box 3 are fixedly connected to the limiting blocks 301, and the limiting blocks 301 are embedded in the box body 10. The limiting blocks 301 can guide and limit the movement direction of the storage box 3, thereby improving the stability of the storage box 3 movement.
[0020] Reference Figure 1 The bottom of the left storage box 2 and the right storage box 6 are fixedly connected with a positioning block 601, and the positioning block 601 is embedded in the box body 10. The positioning block 601 can guide and limit the movement direction of the left storage box 2 and the right storage box 6, thereby improving the stability of the movement of the left storage box 2 and the right storage box 6.
[0021] Reference Figure 2 The top of the protective cover 15 is fixedly connected to a connecting block 1601, and a handle 16 is movably installed on the inner side of the connecting block 1601. The staff holds the handle 16 and lifts the carrying device, and the connecting block 1601 movably connects the handle 16 to the protective cover 15.
[0022] Reference Figure 1 A protective plate 7 is movably installed on the top of the left storage box 2 and the right storage box 6, and a handle is fixedly connected to the top of the protective plate 7. The staff holds the handle and pulls to open the protective plate 7 to take out the items inside the left storage box 2 and the right storage box 6. The protective plate 7 can form protection on the top of the left storage box 2 and the right storage box 6.
[0023] The implementation principle of the on-site trace extraction device of the embodiment of the present application is as follows: first, carry the device to the trace extraction site, pull open the protective cover 15, take out the sweeping brush 14, the collecting box 13 and the scraper 12 and use them to sweep and scrape the on-site traces. When performing extraction operations such as bagging the extracted materials, operate on the top of the operating table 11. After the extraction and bagging are completed, pull out the storage box 3, place the used tools inside the storage box 3, and then pull the protective film 5 to form a protection on the top of the storage box 3 to realize the recycling of the used tools. The staff pulls out the left storage box 2 and puts the tools that need to be dried and stored normally. The extracted materials are placed at both ends of the left storage box 2 respectively. The drying frame 1 can keep one end of the left storage box 2 in a dry state to prevent the extracted materials that need to be dried and stored from getting damp and deteriorating. Before using the device, the cooling frame 9 can be taken out and frozen. The cooling frame 9 contains cooling liquid, which is frozen and placed in the right storage box 6. The staff first pulls out the right storage box 6 and places the extracted materials that need to be stored at low temperature into the right storage box 6. The built-in glass wool insulation material in the right storage box 6 and the frozen cooling frame 9 can keep the inside of the right storage box 6 in a low temperature state for a long time, thereby realizing low-temperature storage of the extracted materials that need to be stored at low temperature.
[0024] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.
[0025] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.
[0026] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
[0027] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A device for extracting traces on the scene, comprising a storage box (3), a right storage box (6) and a housing (10), characterized in that: An operating table (11) is movably mounted on the top of the box body (10), a sweeping brush (14) is movably mounted on the inside of the operating table (11), a collecting box (13) is movably mounted on the inside of the box body (10) at the bottom of the sweeping brush (14), a scraper (12) is movably mounted on the inside of the box body (10) on one side of the collecting box (13), a storage box (3) is movably mounted on the inside of the box body (10) at the bottom of the operating table (11), a shaft (4) is movably mounted on one side of the inside of the storage box (3), and the outer periphery of the shaft (4) is movably mounted. A protective film (5) is movably installed, a left storage box (2) is movably installed on one side of the interior of the box body (10), a drying frame (1) is movably installed inside the left storage box (2), a right storage box (6) is movably installed on the other side of the interior of the box body (10), a cooling frame (9) is movably installed inside the right storage box (6), a limiting bolt (8) is movably installed between the left storage box (2), the right storage box (6) and the storage box (3) and the box body (10), and a protective cover (15) is movably installed on the top of the box body (10).
2. The on-site trace extraction device according to claim 1, characterized in that: Both sides of the storage box (3) are fixedly connected to limit blocks (301), and the limit blocks (301) are engaged with the box body (10).
3. The on-site trace extraction device according to claim 1, characterized in that: The bottoms of the left storage box (2) and the right storage box (6) are both fixedly connected with positioning blocks (601), and the positioning blocks (601) are engaged with the box body (10).
4. The on-site trace extraction device according to claim 1, characterized in that: The top of the protective cover (15) is fixedly connected to a connecting block (1601), and a handle (16) is movably mounted on the inner side of the connecting block (1601).
5. The on-site trace extraction device according to claim 1, characterized in that: A protective plate (7) is movably mounted on the top of the left storage box (2) and the right storage box (6), and a handle is fixedly connected to the top of the protective plate (7).