A laser appearance device for biological evidence
By designing automated sliding channels, cleaning components, and adjustment components, the problems of inconvenient operation and poor detection effect of existing biological evidence laser display devices have been solved, achieving convenient automatic spraying and efficient laser irradiation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HENGGUANG POLICE EQUIP
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-14
AI Technical Summary
Existing biological evidence laser display devices are inconvenient to operate and their detection results are affected by external light, resulting in inconvenience and poor effectiveness.
A bio-evidence laser display device was designed, comprising a sliding groove, a cleaning component, an adjustment component, and an irradiation component. The device achieves automatic spraying and height and angle adjustment of the laser irradiator through an electric slide rail and an electric push rod. Combined with a sealed structure, it improves the ease of operation and detection effect.
The system achieves automated spraying and laser irradiation, improving the convenience and detection effect of the device, and avoiding the inconvenience of manual operation and the influence of external light.
Smart Images
Figure CN224500394U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of criminal investigation equipment technology, specifically a laser display device for biological evidence. Background Technology
[0002] In the field of criminal evidence investigation, it is necessary to discover and obtain criminal evidence left by suspects in order to construct a chain of evidence for the facts of the crime and lay a legal evidentiary foundation for punishing crimes. This evidence includes fingerprint evidence, palm print evidence, and trace evidence that can reflect DNA characteristics.
[0003] Existing patent CN221883454U proposes a biological evidence trace display device, including a device body, a shell, a laser irradiator, and a portable component. The portable component includes a first shaping tube, a second shaping tube, a fluorescent fumigation agent tube, a hanging ring, a strap, a micro pump, and a nozzle. The device body includes a controller, a battery, and a heat dissipation module. The controller is embedded in the inside of the shell and is used to control the device. The battery provides power, and the heat dissipation module is used to dissipate heat from the device. The user hangs the device around their neck using the strap and the hanging ring.
[0004] However, this laser display device still has some drawbacks. During use, it requires manual spraying of reagents and manual use of the laser irradiator for irradiation and detection, which makes operation inconvenient. At the same time, external light can affect the irradiation effect of the laser irradiator, thus affecting the use of the equipment.
[0005] Based on this, a biological evidence laser display device is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content
[0006] The purpose of this invention is to provide a laser display device for biological evidence to solve the problems of insufficient convenience and poor detection effect in the prior art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A biological evidence laser display device includes a laser display device body, two sliding grooves are opened on both sides inside the laser display device body, and four bases are installed around the bottom of the laser display device body.
[0009] A cleaning component is slidably connected inside the sliding groove;
[0010] An adjustment assembly is installed inside the top of the main body of the laser display device;
[0011] An irradiation assembly is installed in the middle of the top interior of the main body of the laser display device. The irradiation assembly includes a second electric push rod, which is installed in the middle of the top interior of the main body of the laser display device. A support frame is installed at the output end of the second electric push rod. Two electric turntables are rotatably connected to the two sides of the inside of the support frame. A laser irradiator is rotatably connected between the two electric turntables.
[0012] Based on the above technical solutions, this utility model also provides the following optional technical solutions:
[0013] In one alternative: a sealing door is rotatably connected to one side of the main body of the laser display device, and a pull ring is rotatably connected to one side of the sealing door.
[0014] In one alternative: a sealing layer is installed inside one side of the main body of the laser display device, and a magnetic block is installed on the top of one side of the sealing layer.
[0015] In one alternative: the cleaning assembly includes a first motorized slide rail slidably connected inside a sliding groove, a spring mounted on one side of the first motorized slide rail, a support plate slidably connected to the bottom of the first motorized slide rail, and a cleaning plate slidably connected inside the support plate.
[0016] In one alternative: the cleaning board is made of natural fiber material.
[0017] In one alternative: the adjustment assembly includes a second electric slide rail, which is installed on both sides of the top interior of the laser display device body. A first electric push rod is slidably connected to the bottom of the second electric slide rail, and a connecting rod is installed at the output end of the first electric push rod.
[0018] In one alternative: a spraying assembly is mounted on the bottom of the connecting rod.
[0019] In one alternative embodiment: the spraying assembly includes a spray plate mounted at the bottom of a connecting rod, a hose mounted at the top of the spray plate, the hose being installed at the outlet of a liquid pump, a connecting pipe mounted at the inlet of the liquid pump, and a reagent box mounted at the top of the connecting pipe.
[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0021] 1. This utility model uses a cleaning component, in which a cleaning plate is attached to the bottom of the laser display device body and scrapes it to clean the bottom of the body, so as to facilitate the detection of other physical evidence. The use of the irradiation component makes it easy to adjust the height and angle of the laser irradiator to irradiate and detect physical evidence, thus improving the convenience of the device.
[0022] 2. This utility model, through the combined use of the adjustment component and the spraying component, facilitates the adjustment of the height of the spraying plate and moves the spraying plate to ensure uniform spraying of the evidence, avoiding the problem of poor uniformity of reagent spraying when manually spraying reagents, and improving the practicality of the device. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0024] Figure 2 This is a schematic diagram of the main body of the laser display device of this utility model.
[0025] Figure 3 This is a schematic diagram of the cleaning component of this utility model.
[0026] Figure 4 This is a schematic diagram of the adjustment component and spraying component of this utility model.
[0027] Figure 5 This is a schematic diagram of the irradiation component of this utility model.
[0028] Figure reference numerals: 1. Main body of laser display device; 11. Sliding groove; 12. Base; 13. Sealing door; 14. Pull ring; 15. Sealing layer; 16. Magnetic block; 2. First electric slide rail; 21. Spring; 22. Support plate; 23. Cleaning plate; 3. Second electric slide rail; 31. First electric push rod; 32. Connecting rod; 33. Spray plate; 34. Hoses; 35. Liquid pump; 36. Connecting pipe; 37. Reagent box; 4. Second electric push rod; 41. Support frame; 42. Electric turntable; 43. Laser irradiator. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0030] In one embodiment, such as Figures 1-5 As shown, a biological evidence laser display device includes a main body 1, two sliding grooves 11 are opened on both sides inside the main body 1, and four bases 12 are installed around the bottom of the main body 1.
[0031] A cleaning component is slidably connected inside the sliding groove 11;
[0032] An adjustment assembly is installed inside the top of the main body 1 of the laser display device;
[0033] An irradiation assembly is installed in the middle of the top inside the main body 1 of the laser display device. The irradiation assembly includes a second electric push rod 4. The second electric push rod 4 is installed in the middle of the top inside the main body 1 of the laser display device. A support frame 41 is installed at the output end of the second electric push rod 4. Two electric turntables 42 are rotatably connected to the two sides inside the support frame 41. A laser irradiator 43 is rotatably connected between the two electric turntables 42.
[0034] In this embodiment, the base 12 supports the bottom of the main body 1 of the laser display device, the sliding groove 11 slides the cleaning component, the adjustment component facilitates the movement of the spray plate 33 for spraying, the operation of the second electric push rod 4 pushes the support frame 41 to move and adjust the height of the laser irradiator 43, and the operation of the electric turntable 42 adjusts the angle of the laser irradiator 43, thus improving the convenience of the device.
[0035] In one embodiment, such as Figure 1 and Figure 2 As shown, a sealing door 13 is rotatably connected to one side of the main body 1 of the laser display device, and a pull ring 14 is rotatably connected to one side of the sealing door 13. The sealing door 13 seals one side of the main body 1 of the laser display device, and the pull ring 14 facilitates the opening of the sealing door 13.
[0036] In one embodiment, such as Figure 1 and Figure 2 As shown, a sealing layer 15 is installed inside one side of the main body 1 of the laser display device, and a magnetic block 16 is installed on the top of one side of the sealing layer 15. The sealing layer 15 seals the gap between the sealing door 13 and the main body 1 of the laser display device, and the magnetic block 16 attracts the sealing door 13.
[0037] In one embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, the cleaning assembly includes a first electric slide rail 2, which is slidably connected inside the sliding groove 11. A spring 21 is installed on one side of the first electric slide rail 2, and a support plate 22 is slidably connected to the bottom of the first electric slide rail 2. A cleaning plate 23 is slidably connected inside the support plate 22. By operating the first electric slide rail 2, the support plate 22 drives the cleaning plate 23 to adhere to the bottom of the laser display device body 1 for scraping and cleaning. The sliding connection between the cleaning plate 23 and the support plate 22 makes it easy to remove the cleaning plate 23 for replacement or cleaning.
[0038] In one embodiment, such as Figure 1 and Figure 3 As shown, the cleaning plate 23 is made of natural fiber material, and the material of the cleaning plate 23 facilitates the adsorption of reagents for cleaning.
[0039] In one embodiment, such as Figure 1 , Figure 2 and Figure 4 As shown, the adjustment assembly includes a second electric slide rail 3, which is installed on both sides of the top inside the main body 1 of the laser display device. A first electric push rod 31 is slidably connected to the bottom of the second electric slide rail 3, and a connecting rod 32 is installed at the output end of the first electric push rod 31.
[0040] In one embodiment, such as Figure 1 and Figure 4 As shown, a spraying assembly is installed at the bottom of the connecting rod 32, and the reagent is sprayed through the spraying assembly.
[0041] In one embodiment, such as Figure 1 and Figure 4 As shown, the spraying assembly includes a spray plate 33, which is installed at the bottom of the connecting rod 32. A hose 34 is installed on the top of the spray plate 33. The hose 34 is installed at the outlet of the liquid pump 35. A connecting pipe 36 is installed at the inlet of the liquid pump 35. A reagent tank 37 is installed on the top of the connecting pipe 36. The reagent inside the reagent tank 37 is drawn into the spray plate 33 through the connecting pipe 36 by the operation of the liquid pump 35, and then sent into the spray plate 33 through the hose 34 to facilitate uniform spraying of the evidence.
[0042] The above embodiment discloses a biological evidence laser display device. The operation of two first electric slide rails 2 moves a support plate 22, causing a cleaning plate 23 to scrape against the bottom interior of the main body 1 of the laser display device, facilitating cleaning. Pulling the support plate 22 extends the spring 21, allowing the first electric slide rails 2 to slide outwards within the sliding groove 11. The cleaning plate 23 can be removed for replacement or cleaning due to the sliding connection between the support plate 22 and the cleaning plate 23. After releasing the support plate 22, the automatic return of the spring 21 resets the first electric slide rails 2. Evidence is then placed inside the main body 1 of the laser display device, where it is attracted to the magnetic block 16 by the rotation of the sealing door 13, and sealed. Layer 15 seals the gaps. Pulling the pull ring 14 makes it easy to open the sealing door 13. The operation of the first electric push rod 31 pushes the connecting rod 32 downward, thereby adjusting the height of the spray plate 33. The operation of the two second electric slide rails 3 drives the spray plate 33 to move. The operation of the liquid pump 35 draws the reagent from the reagent box 37 through the connecting pipe 36 and then sends it into the interior of the spray plate 33 through the hose 34, so as to evenly spray the evidence, improving the convenience and practicality of the device. After spraying, the adjustment component is reset. The operation of the laser irradiator 43 is used to irradiate and detect the evidence. The operation of the second electric push rod 4 adjusts the height, and the operation of the electric turntable 42 adjusts the irradiation angle, improving the irradiation effect and practicality of the device.
[0043] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A laser display device for biological evidence, comprising a main body (1) of the laser display device, characterized in that, Two sliding grooves (11) are opened on both sides of the interior of the main body (1) of the laser display device, and four bases (12) are installed around the bottom of the main body (1); A cleaning component is slidably connected inside the sliding groove (11); An adjustment assembly is installed on the top of the interior of the main body (1) of the laser display device; An irradiation assembly is installed in the middle of the top of the main body (1) of the laser display device. The irradiation assembly includes a second electric push rod (4). The second electric push rod (4) is installed in the middle of the top of the main body (1) of the laser display device. A support frame (41) is installed at the output end of the second electric push rod (4). Two electric turntables (42) are rotatably connected to the two sides inside the support frame (41). A laser irradiator (43) is rotatably connected between the two electric turntables (42).
2. The biological evidence laser display device according to claim 1, characterized in that, A sealing door (13) is rotatably connected to one side of the main body (1) of the laser display device, and a pull ring (14) is rotatably connected to one side of the sealing door (13).
3. The biological evidence laser display device according to claim 2, characterized in that, A sealing layer (15) is installed inside one side of the main body (1) of the laser display device, and a magnetic block (16) is installed on the top of one side of the sealing layer (15).
4. The biological evidence laser display device according to claim 1, characterized in that, The cleaning assembly includes a first electric slide rail (2), which is slidably connected inside the sliding groove (11). A spring (21) is installed on one side of the first electric slide rail (2), and a support plate (22) is slidably connected to the bottom of the first electric slide rail (2). A cleaning plate (23) is slidably connected inside the support plate (22).
5. A biological evidence laser display device according to claim 4, characterized in that, The cleaning board (23) is made of natural fiber material.
6. The biological evidence laser display device according to claim 1, characterized in that, The adjustment assembly includes a second electric slide rail (3), which is installed on both sides of the top inside the main body (1) of the laser display device. A first electric push rod (31) is slidably connected to the bottom of the second electric slide rail (3), and a connecting rod (32) is installed at the output end of the first electric push rod (31).
7. A biological evidence laser display device according to claim 6, characterized in that, A spraying assembly is installed at the bottom of the connecting rod (32).
8. A biological evidence laser display device according to claim 7, characterized in that, The spraying assembly includes a spray plate (33) which is mounted on the bottom of a connecting rod (32). A hose (34) is mounted on the top of the spray plate (33). The hose (34) is mounted on the outlet end of a liquid pump (35). A connecting pipe (36) is mounted on the inlet end of the liquid pump (35). A reagent box (37) is mounted on the top of the connecting pipe (36).