Portable judicial expertise sampling device

Abstract

This utility model provides a portable forensic sampling device, belonging to the field of collection equipment. It includes a mounting base, with a sampling component rotatably mounted on the lower part of the mounting base and a telescopic component rotatably mounted on the upper part of the mounting base. The sampling component includes a rotating shaft located at the lower part of the mounting base, a base rotatably mounted on the lower part of the rotating shaft, and a first electric push rod mounted on the lower part of the base. Through the sampling component, the first electric push rod drives a bidirectional rotating screw to rotate. During rotation, the threads on the screw in different directions cause the two clamping plates to simultaneously close towards the center or open outwards, firmly clamping the solid sample. When switching clamps is needed, the rotating shaft drives the base to rotate, allowing for quick switching of the sampling tool. A second electric push rod pushes the liquid-absorbing head to draw in liquid. A spring buffers pressure, reducing hard contact impact and protecting fragile evidence.

Description

Technical Field

[0001] This utility model relates to the field of data collection equipment, and more specifically, to a portable forensic identification sampling device. Background Technology

[0002] Forensic identification refers to the process by which a people's court, in accordance with its authority or upon relevant request, appoints individuals with specialized knowledge, skills, or experience to examine, identify, and judge certain specialized issues involved in a case, thereby providing a scientific basis for a fair judgment. Forensic identification requires on-site sampling, including solid or liquid samples. Samples from complex environments cannot be directly collected and require the use of specialized sampling equipment.

[0003] A search revealed that Chinese patent CN219608455U discloses a "Forensic Identification On-site Sampling and Collection Device." This utility model discloses a forensic identification on-site sampling and collection device, belonging to the technical field of collection equipment. It includes a main rod with a telescopic rod movably sleeved on it. A mounting plate is provided on the side of the main rod, and a control panel is fixedly mounted on the mounting plate. Mounting seats are fixedly connected to both sides of the bottom end of the telescopic rod, and a set of tension rods is provided on both sides of each mounting seat. A liquid sampling mechanism is provided at the end of each set of tension rods. In this utility model, when sampling liquid samples using the solid sampling mechanism, a first camera captures images of the vicinity of the liquid sample; when sampling solid samples using the liquid sampling mechanism, a second camera captures images of the vicinity of the fixed sample. The captured videos are displayed on the screen of the control panel to facilitate accurate sampling by staff, improving practicality. However, the following drawbacks still exist:

[0004] (1) Lack of buffering, hard contact may damage physical evidence or equipment, and the sampling head is fixedly connected to the rotating rod, making it impossible to quickly change different tools (such as brushes, tweezers, drill bits), which limits the applicability of the equipment.

[0005] (2) Manually adjusting the angle of the rotating block relies on manual operation, which makes it difficult to accurately locate the sampling point in narrow or high-altitude scenarios.

[0006] Therefore, a portable forensic sampling device is proposed. Utility Model Content

[0007] The purpose of this utility model is to address the current problem of not being able to quickly change between different tools.

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0009] The present invention is as follows: a portable forensic identification sampling device, including a mounting base, a sampling component rotatably mounted on the lower part of the mounting base, and a telescopic component rotatably mounted on the upper part of the mounting base;

[0010] The sampling assembly includes a rotating shaft located at the lower part of the mounting base. A base is rotatably mounted on the lower part of the rotating shaft. A first electric push rod is mounted on the lower part of the base. A motor is fixedly mounted on the right side wall of the first electric push rod. A bidirectional rotating screw is mounted on the output end of the motor. A clamping plate is slidably mounted on the lower part of the bidirectional rotating screw. A second electric push rod is mounted on the lower part of the base. A pad is mounted on one end of the second electric push rod. A spring is mounted on the upper inner side of the pad. A liquid-absorbing nozzle is fixedly mounted on the lower part of the pad.

[0011] As a preferred technical solution of this utility model, the telescopic assembly includes a telescopic cylinder located on the upper part of the mounting base, one end of the telescopic cylinder is connected to a telescopic rod, a ball hinge is rotatably mounted on the lower part of the telescopic rod, a ball seat is mounted on the outer side of the ball hinge, and the ball seat is located inside the mounting base and fixedly connected to the mounting base.

[0012] As a preferred technical solution of this utility model, a circular baffle is installed on the outer side of the base, a fill light is embedded in the lower part of the circular baffle, a slide rail is provided on the lower outer side of the circular baffle, a camera is slidably connected to the outer side of the slide rail, and the camera and the slide rail are slidably connected by a slider.

[0013] As a preferred technical solution of this utility model, a bracket is movably installed on the upper outer side of the circular baffle, and a telescopic anti-fouling cover is provided on the outer side of the bracket. The telescopic anti-fouling cover and the circular baffle are movably connected by a hinge.

[0014] As a preferred technical solution of this utility model, an annular clamp is provided on the upper outer side of the other end of the telescopic cylinder, and a laser marker and a display panel are provided on the outer side of the annular clamp. The display panel and the camera are electrically connected.

[0015] As a preferred technical solution of this utility model, a charging port is provided at the top position of the other end of the telescopic cylinder, and the charging port is located inside the annular clamp.

[0016] As a preferred technical solution of this utility model, a battery compartment is provided on the outer side of the telescopic cylinder. The battery compartment is located at the lower part of the annular clamp and is fitted and connected to the outer side of the telescopic cylinder.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. Through the sampling components, the first electric push rod of the motor drives the bidirectional rotating screw to rotate. When rotating, the threads on the screw in different directions will cause the two clamping plates to close in the middle or open outward at the same time, firmly clamping the solid sample. When it is necessary to switch the clamp, the rotating shaft drives the base to rotate, which can quickly switch the sampling tool. The second electric push rod pushes the liquid aspiration head to absorb the liquid. The spring can buffer the pressure and reduce the impact of hard contact, protecting fragile evidence.

[0019] 2. With the telescopic components in place, when in use, the telescopic cylinder is controlled to push the telescopic rod to the approximate position required. Then, by utilizing the flexibility of the ball joint, the direction of the telescopic rod can be finely adjusted, just like adjusting the angle of a desk lamp, so that it is precisely aligned with the target. It can remotely collect biological traces (such as bloodstains, fibers) in corners, crevices, or high places in trees. It is convenient and reduces human error, greatly improving work efficiency and accuracy. Attached Figure Description

[0020] Figure 1 One of the three-dimensional structural schematic diagrams of the portable forensic identification sampling device provided by this utility model;

[0021] Figure 2 A partial structural schematic diagram of the portable forensic identification sampling device provided by this utility model;

[0022] Figure 3 A second three-dimensional structural schematic diagram of the portable forensic identification sampling device provided by this utility model;

[0023] Figure 4 A schematic diagram of the telescopic component structure of the portable forensic sampling device provided by this utility model;

[0024] Figure 5 A schematic diagram of the sampling component structure of the portable forensic identification sampling device provided by this utility model.

[0025] The diagram shows: 1. Mounting base; 2. Sampling component; 201. Rotating shaft; 202. Base; 203. First electric push rod; 204. Motor; 205. Bidirectional rotating screw; 206. Clamping plate; 207. Second electric push rod; 208. Pad; 209. Spring; 210. Liquid suction head; 3. Telescopic component; 301. Telescopic cylinder; 302. Telescopic rod; 303. Ball hinge; 304. Ball seat; 4. Circular baffle; 5. Supplemental light; 6. Slide rail; 7. Camera; 8. Bracket; 9. Telescopic anti-fouling cover; 10. Ring clamp; 11. Laser marker; 12. Display panel; 13. Charging port; 14. Battery compartment. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0027] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0028] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] like Figures 1-3 and Figure 5 As shown, this embodiment proposes a portable forensic identification sampling device, including a mounting base 1, a sampling component 2 rotatably mounted on the lower part of the mounting base 1, and a telescopic component 3 rotatably mounted on the upper part of the mounting base 1.

[0031] The sampling assembly 2 includes a rotating shaft 201 located at the lower part of the mounting base 1. A base 202 is rotatably mounted on the lower part of the rotating shaft 201. A first electric push rod 203 is mounted on the lower part of the base 202. A motor 204 is fixedly mounted on the right side wall of the first electric push rod 203. A bidirectional rotating screw 205 is mounted on the output end of the motor 204. A clamping plate 206 is slidably mounted on the lower part of the bidirectional rotating screw 205. A second electric push rod 207 is mounted on the lower part of the base 202. A pad 208 is mounted on one end of the second electric push rod 207. A spring 209 is mounted on the upper inner side of the pad 208. A liquid suction head 210 is fixedly mounted on the lower part of the pad 208. The first electric push rod 203 of the start motor 204 drives the bidirectional rotating screw 205 to rotate. When rotating, the threads in different directions on the bidirectional rotating screw 205 will cause the two clamping plates 206 to simultaneously close in the middle or open outward to clamp the sample. When switching clamps, the rotating shaft 201 drives the base 202 to rotate, which can quickly switch the sampling tool. The second electric push rod 207 pushes the liquid suction head 210 to absorb the liquid. The spring 209 can buffer the pressure and reduce the impact of hard contact, protecting fragile evidence.

[0032] like Figure 1 , Figure 2 and Figure 4As shown, in a preferred embodiment, based on the above method, the telescopic component 3 further includes a telescopic cylinder 301 located on the upper part of the mounting base 1. One end of the telescopic cylinder 301 is connected to a telescopic rod 302. A ball hinge 303 is rotatably mounted on the lower part of the telescopic rod 302. A ball seat 304 is mounted on the outer side of the ball hinge 303. The ball seat 304 is located inside the mounting base 1 and is fixedly connected to the mounting base 1. In use, the telescopic cylinder 301 is controlled to push the telescopic rod 302 to the desired approximate position. Then, using the flexibility of the ball hinge 303, the direction of the telescopic rod 302 is finely adjusted, similar to adjusting the angle of a desk lamp, to accurately align it with the target. This allows for remote collection of biological traces (such as bloodstains and fibers) from corners, crevices, or high places in trees, which is convenient, reduces human error, and greatly improves work efficiency and accuracy.

[0033] like Figure 2 , Figure 3 and Figure 5 As shown, in a preferred embodiment, based on the above method, a circular baffle 4 is further installed on the outer side of the base 202. A supplementary light 5 is embedded in the lower part of the circular baffle 4. A slide rail 6 is provided on the lower outer side of the circular baffle 4. A camera 7 is slidably connected to the outer side of the slide rail 6. The camera 7 and the slide rail 6 are slidably connected by a slider. During sampling, the camera 7 automatically identifies the sampling type (liquid / solid) and adjusts its angle. The slider drives the camera 7 to slide within the slide rail 6. Combined with the supplementary light 5 for nighttime illumination, the system records the scene without blind spots, reducing manual intervention while providing a more intuitive observation of the scene.

[0034] like Figures 1-3 As shown, in a preferred embodiment, based on the above method, a bracket 8 is movably installed on the upper outer side of the circular baffle 4. A telescopic anti-fouling cover 9 is provided on the outer side of the bracket 8, and the telescopic anti-fouling cover 9 is movably connected to the circular baffle 4 by a hinge. When using the telescopic anti-fouling cover 9, it can be unfolded downwards to cover the sampling area (such as a wound on a corpse), isolating environmental dust / droplets while protecting the operator from contact with harmful substances. When not in use, it can also be folded upwards by the hinge.

[0035] like Figure 1 , Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, a ring clamp 10 is further provided on the upper outer side of the other end of the telescopic cylinder 301. A laser marker 11 and a display panel 12 are provided on the outer side of the ring clamp 10, and the display panel 12 and the camera 7 are electrically connected. The ring clamp 10 fixes the display panel 12 and the laser marker 11, and can be disassembled when not in use. The laser marker 11 emits light to mark the sampling boundary (such as the range of blood splatter) to assist in positioning in dark environments.

[0036] like Figure 1 , Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, a charging port 13 is further provided at the top position of the other end of the telescopic cylinder 301, and the charging port 13 is located inside the annular clamp 10. This eliminates the need for an external power supply, allowing the device to operate continuously for extended periods, greatly improving work efficiency.

[0037] like Figure 1 and Figure 4 As shown, in a preferred embodiment, based on the above method, a battery compartment 14 is further provided on the outer side of the telescopic cylinder 301. The battery compartment 14 is located at the lower part of the annular clamp 10, and the battery compartment 14 is fitted and connected to the outer side of the telescopic cylinder 301. When the device runs out of power, a backup battery can be used for emergency use. Even in environments where charging is not possible, it can still work normally, greatly improving the device's battery life.

[0038] Specifically, when using this portable forensic sampling device: the telescopic cylinder 301 pushes the telescopic rod 302 to the desired approximate position. Then, utilizing the flexibility of the ball joint 303, similar to adjusting the angle of a desk lamp, the direction of the telescopic rod 302 is finely adjusted to precisely align it with the target. This allows for remote collection of biological traces (such as bloodstains and fibers) from corners, crevices, or high places in trees. The motor 204 activates the first electric push rod 203, which drives the bidirectional rotating screw 205 to rotate. During rotation, the threads on the bidirectional rotating screw 205 in different directions cause the two clamping plates 206 to simultaneously close towards the center or open outwards, firmly clamping the solid sample. When switching fixtures, the rotating shaft 201 drives the base 202 to rotate, which can quickly switch the sampling tool. The second electric push rod 207 pushes the liquid suction head 210 to suck up the liquid. The spring 209 can buffer the pressure and reduce hard contact impact. During sampling, the camera 7 automatically identifies the sampling type (liquid / solid) and adjusts the angle. The slider drives the camera 7 to slide in the slide rail 6. With the help of the supplementary light 5 for night lighting, the telescopic anti-fouling cover 9 can be unfolded downwards to cover the sampling area (such as wounds on corpses), isolating environmental dust / droplets while protecting the operator from contact with harmful substances. When not in use, it can also be folded upwards by the hinge.

[0039] All technical features in this embodiment can be freely combined according to actual needs.

[0040] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A portable forensic sampling device, comprising a mounting base (1), characterized in that, A sampling component (2) is rotatably mounted on the lower part of the mounting base (1), and a telescopic component (3) is rotatably mounted on the upper part of the mounting base (1). The sampling component (2) includes a rotating shaft (201) located at the lower part of the mounting base (1). A base (202) is rotatably mounted on the lower part of the rotating shaft (201). A first electric push rod (203) is mounted on the lower part of the base (202). A motor (204) is fixedly mounted on the right side wall of the first electric push rod (203). A bidirectional rotating screw (205) is mounted on the output end of the motor (204). A clamping plate (206) is slidably mounted on the lower part of the bidirectional rotating screw (205). A second electric push rod (207) is mounted on the lower part of the base (202). A pad (208) is mounted on one end of the second electric push rod (207). A spring (209) is mounted on the upper inner side of the pad (208). A liquid-absorbing nozzle (210) is fixedly mounted on the lower part of the pad (208).

2. The portable forensic sampling device according to claim 1, characterized in that, The telescopic assembly (3) includes a telescopic cylinder (301) located on the upper part of the mounting base (1). One end of the telescopic cylinder (301) is connected to a telescopic rod (302). A ball hinge (303) is rotatably mounted on the lower part of the telescopic rod (302). A ball seat (304) is mounted on the outer side of the ball hinge (303). The ball seat (304) is located inside the mounting base (1) and is fixedly connected to the mounting base (1).

3. The portable forensic sampling device according to claim 1, characterized in that, A circular baffle (4) is installed on the outer side of the base (202). A fill light (5) is embedded in the lower part of the circular baffle (4). A slide rail (6) is opened on the lower outer side of the circular baffle (4). A camera (7) is slidably connected to the outer side of the slide rail (6). The camera (7) and the slide rail (6) are slidably connected by a slider.

4. A portable forensic sampling device according to claim 3, characterized in that, A bracket (8) is movably installed on the upper outer side of the circular baffle (4), and a telescopic anti-fouling cover (9) is provided on the outer side of the bracket (8). The telescopic anti-fouling cover (9) and the circular baffle (4) are connected by a hinge.

5. A portable forensic sampling device according to claim 2, characterized in that, An annular clamp (10) is provided on the upper outer side of the other end of the telescopic cylinder (301). A laser marker (11) and a display panel (12) are provided on the outer side of the annular clamp (10). The display panel (12) and the camera (7) are electrically connected.

6. A portable forensic sampling device according to claim 2, characterized in that, A charging port (13) is provided at the top of the other end of the telescopic cylinder (301), and the charging port (13) is located inside the annular clamp (10).

7. The portable forensic sampling device of claim 2, wherein, A battery compartment (14) is provided on the outside of the telescopic cylinder (301). The battery compartment (14) is located at the lower part of the annular clamp (10). The battery compartment (14) is fitted and connected to the outside of the telescopic cylinder (301).

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