Physical evidence discovering instrument

Abstract

The utility model provides a physical evidence discovering instrument, and relates to the technical field of physical evidence discovering equipment. The physical evidence discovering instrument comprises a main body and an atomization module, the main body comprises a shell, and a sunken part is arranged on the front side of the shell and used for installing the atomization module; the atomization module is provided with a cavity, at least one partition plate is arranged in the cavity and can divide the cavity into a plurality of independent solution cavities, and different developing solutions are arranged in the solution cavities; a liquid outlet and an atomizing part are arranged on the front side of each solution cavity, the atomizing parts are arranged on the front sides of the liquid outlets, and the atomizing parts can atomize developing liquid flowing out of the liquid outlets to form atomized developing liquid. According to the physical evidence discovering instrument, the accuracy of extracting the physical evidence can be improved.

Description

Technical Field

[0001] This application relates to the field of physical evidence discovery equipment technology, and more particularly to a physical evidence discovery device. Background Technology

[0002] Evidence detection devices are testing equipment designed for fields such as criminal investigation and forensic identification. They can be used to capture physical evidence at crime scenes or at locations where evidence has been left behind. Evidence detection devices can improve the efficiency of evidence retrieval.

[0003] When a human body comes into contact with a carrier surface, physical evidence (such as sebum, sweat, exfoliated cells, blood, etc.) will be left on the carrier surface. The atomizer of the evidence detection device atomizes the developing agent in the atomization chamber and sprays it onto the carrier surface. After waiting for the developing agent to react with the evidence for a period of time, the evidence detection device emits a laser to irradiate the evidence that has reacted with the developing agent. Fluorescent spots can be emitted at the locations of the evidence, thereby allowing the extraction of physical evidence.

[0004] However, the evidence discovery device sprays the atomized developing agent onto different pieces of evidence. Due to the different compositions of the different pieces of evidence, the developing effect is different, which will cause the evidence to be blurred and reduce the accuracy of the evidence. Utility Model Content

[0005] In view of the above problems, embodiments of this application provide an evidence discovery device that can improve the accuracy of extracting physical evidence.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0007] This application provides an evidence detection device, including: a main body and an atomization module;

[0008] The main body includes an outer shell, and a recess is provided on the front side of the outer shell for installing the atomizing module;

[0009] The atomizing module is provided with a cavity, and at least one partition is provided in the cavity. The partition can divide the cavity into multiple independent solution chambers, and each solution chamber is provided with a different developer.

[0010] Each solution chamber is equipped with a liquid outlet and an atomizing element on its front side. The atomizing element is located on the front side of the liquid outlet and can atomize the developer flowing out of the liquid outlet to form an atomized developer solution.

[0011] In some embodiments of this application, each solution chamber is provided with a liquid filling port facing the top of the solution chamber;

[0012] The developer is loaded into each solution chamber through the filling port.

[0013] In some embodiments of this application, the atomizing module includes multiple sealing caps, which are detachably disposed at each liquid inlet.

[0014] In some embodiments of this application, the main body includes a plurality of lasers, at least some of which are disposed within the housing;

[0015] The front side of the housing has multiple mounting ports, which are connected to multiple lasers respectively.

[0016] Multiple lasers are set up corresponding to multiple solution chambers, and the lasers can emit lasers that match the developing solution in the corresponding solution chamber.

[0017] In some embodiments of this application, a control board is provided inside the housing, and a knob is provided on at least a portion of the housing; the control board and the knob are electrically connected.

[0018] The knob is configured such that when the knob is rotated to different positions, the control panel controls different lasers to emit lasers of different frequencies.

[0019] In some embodiments of this application, the partition extends along the front-back direction of the atomizing module, and the partition divides the cavity to form a first solution cavity and a second solution cavity;

[0020] The first solution chamber contains a first developing solution, and the second solution chamber contains a second developing solution.

[0021] In some embodiments of this application, a control board is provided inside the housing, and a switching button is provided on the rear side of at least a portion of the housing; the control board and the switching button are electrically connected.

[0022] When the switch button and control panel are in the first state, the atomizing element atomizes the first developer to form the first atomized developer;

[0023] When the switch button and control panel are in the second state, the atomizing element atomizes the second developer to form a second atomized developer.

[0024] When the switch button and control panel are in the third state, the atomizing element atomizes the first and second developing solutions to form a third atomized developing solution;

[0025] When the switch button and control panel are in the fourth state, the atomizing element does not atomize the first and second developer solutions.

[0026] In some embodiments of this application, the main body and the atomizing module are detachably connected;

[0027] The main body is provided with a first connecting part, and the atomizing module is provided with a second connecting part;

[0028] When the atomizing module is located in the recessed portion, the first connecting portion and the second connecting portion are electrically connected.

[0029] In some embodiments of this application, the recess is provided with at least one first magnetic element, and the atomizing module is provided with at least one second magnetic element;

[0030] The first and second magnetic components are attracted to each other, and the atomizing module is detachably connected to the main body.

[0031] And / or, the recessed portion is provided with at least one slot;

[0032] The atomizing module is equipped with at least one clip, and the atomizing module is engaged with the main body through the slot and the clip.

[0033] In some embodiments of this application, the main body is provided with a power supply mounting part, which is detachably connected to an external power supply.

[0034] When the external power supply is connected to the power supply mounting unit, the external power supply is electrically connected to the main body and can supply power to the main body.

[0035] The evidence discovery device provided in this application uses multiple solution chambers with different developing solutions. The appropriate developing solution can be selected according to the concentration or composition of the evidence, thereby ensuring the effect of the reaction between the evidence and the developing solution. This improves the developing effect of the laser irradiation on the developing solution, avoids the problem of blurred development, and improves the accuracy of evidence extraction.

[0036] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems that this application can solve, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 A schematic diagram of the structure of the evidence discovery device in the first state provided in the embodiments of this application;

[0039] Figure 2 A schematic diagram of the second state of the evidence discovery device provided in this application embodiment;

[0040] Figure 3 A schematic diagram illustrating the detachable structure of the main body and atomizing module provided in an embodiment of this application;

[0041] Figure 4 This is a schematic diagram of the atomizing module provided in an embodiment of this application.

[0042] Figure label:

[0043] 10-Evidence discovery device;

[0044] 11-Main Body;

[0045] 111-Outer shell; 1111-Recessed portion; 1112-Handle portion; 1113-Mounting port;

[0046] 112 - Laser; 1121 - First laser; 1122 - Second laser;

[0047] 113 - Laser Control Unit;

[0048] 115 - Switch;

[0049] 116 - Power display module;

[0050] 117 - Charging port;

[0051] 118 - Knob;

[0052] 120 - Atomizing indicator light; 1201 - First atomizing indicator light; 1202 - Second atomizing indicator light;

[0053] 121 - Toggle button;

[0054] 122 - First magnetic component;

[0055] 123 - First connecting part;

[0056] 13-Atomization module;

[0057] 131 - Atomizing component;

[0058] 132 - Liquid filling port;

[0059] 133 - Sealing cap;

[0060] 134 - Partition;

[0061] 135 - Solution chamber; 1351 - First solution chamber; 1352 - Second solution chamber;

[0062] 136-Liquid outlet. Detailed Implementation

[0063] In related technologies, when a human body comes into contact with a carrier surface, physical evidence (such as sebum, sweat, exfoliated cells, blood, etc.) is left on the carrier surface. The atomizer of the evidence detection device atomizes the developing agent in the atomization chamber and sprays it onto the carrier surface. After waiting for the developing agent to react with the evidence for a period of time, the evidence detection device emits a laser to irradiate the evidence that has reacted with the developing agent. Fluorescent spots are emitted at the locations of the evidence, allowing for the extraction of physical evidence.

[0064] However, the evidence discovery device sprays the atomized developing agent onto different pieces of evidence. Due to the different compositions of the different pieces of evidence, the developing effect is different, which will cause the evidence to be blurred and reduce the accuracy of the evidence.

[0065] To address the aforementioned issues, this application provides an evidence discovery device that uses multiple solution chambers containing different developing solutions. The device allows selection of a suitable developing solution based on the concentration or composition of the evidence, ensuring effective reaction between the evidence and the developing solution. This enhances the developing effect of the laser irradiation on the developing solution, avoiding blurry development and improving the accuracy of evidence extraction.

[0066] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0067] Reference Figures 1-4 As shown, this application provides an evidence detection device 10, which can be used to capture physical evidence at a crime scene. The evidence detection device 10 can be configured as a targeted laser evidence detection device, which can improve the efficiency of evidence extraction.

[0068] The evidence detection device 10 includes a main body 11, which is the core component of the device. The main body 11 integrates multiple functional modules and is capable of emitting lasers.

[0069] The main body 11 includes a housing 111. The housing 111 provides protection for the internal components of the evidence discovery device 10, preventing internal electronic components or parts from being affected by the external environment, such as dust, moisture, impact and other physical damage.

[0070] The housing 111 includes a recess 1111. The recess 1111 is located on the front side of the housing 111 and is used to install other components of the evidence discovery device 10.

[0071] The housing 111 includes a handle portion 1112. By holding the handle portion 1112, the evidence discovery device 10 can be easily used.

[0072] The main body 11 includes a laser 112. The laser 112 can emit laser light to facilitate precise positioning or marking during the discovery of physical evidence.

[0073] The main body 11 includes a laser control unit 113. The laser control unit 113 is disposed on the handle 1112. By operating the laser control unit 113, the evidence detection device 10 is made to emit a laser.

[0074] For example, the laser control unit 113 can be configured as a button, which can emit a laser by pressing the button, thereby improving the operability of the evidence discovery device 10.

[0075] The main body 11 includes a power supply module (not shown). The power supply module is housed within the housing 111. The power supply module provides power to the laser 112 and other electronic components. For example, the power supply module may be a battery.

[0076] The main body 11 includes a laser indicator light, which is used to indicate whether the laser 112 is emitting laser light.

[0077] The main body 11 includes a switch 115, which controls the power supply module of the evidence discovery device 10, making it easy for users to quickly turn the evidence discovery device 10 on or off.

[0078] The main body 11 includes a power display module 116. The power display module 116 can display the current power status so that the user can know the power status of the evidence discovery device 10 in a timely manner. The power display module 116 can be installed on the rear side of the housing 111 for the user to observe the power status.

[0079] The main body 11 includes a charging port 117. The charging port 117 can be connected to an external power source to charge the power supply module of the evidence discovery device 10. The charging port 117 can be installed on the rear side of the housing 111 for easy charging of the evidence discovery device 10.

[0080] The main body 11 includes a control board (not shown in the figure). The control board is located inside the housing 111. The control board is responsible for managing and coordinating the various functional modules of the evidence discovery device 10 to ensure that the evidence discovery device 10 can be used normally.

[0081] The evidence detection device 10 includes an atomizing module 13. The atomizing module 13 has a cavity for containing developing solution. The atomizing module 13 is capable of atomizing the developing solution to form an atomized developing solution.

[0082] To avoid the need for factory return when replacing the developer in the atomizing module 13, the atomizing module 13 is detachably connected to the main body 11, allowing users to remove the atomizing module 13 from the main body 11 for cleaning. The cleaned atomizing module 13 can then be refilled with developer as needed. This avoids the cumbersome and time-consuming factory return process, reduces the operating cost of the evidence discovery device 10, and improves its efficiency.

[0083] The atomizing module 13 is mounted in the recess 1111, which provides a mounting position for the atomizing module 13. This improves the stability of the connection between the atomizing module 13 and the main body 11. In addition, this reduces the obtrusiveness of the atomizing module 13 and improves the aesthetic appearance of the evidence discovery device 10.

[0084] In some possible implementations, the recess 1111 is provided with one or more first magnetic elements 122, and the atomizing module 13 is provided with one or more second magnetic elements (not shown in the figure). The first magnetic elements 122 and the second magnetic elements are magnetically attracted to each other, and the atomizing module 13 is detachably connected to the main body 11. The second magnetic elements are attracted to each other by the opposite magnetism of the first magnetic elements 122 and the second magnetic elements. This reduces the complexity of installing the atomizing module 13, thereby saving installation time. At the same time, this allows the atomizing module 13 to be disassembled without the need for other tools, thus facilitating the filling of the atomizing module 13 with developer and simplifying maintenance of the atomizing module 13.

[0085] For example, the first magnetic component 122 can be set as an N-type magnet, and the second magnetic component can be set as an S-type magnet. This configuration ensures the strength and stability of the connection between the atomizing module 13 and the main body 11, reducing the risk of the atomizing module 13 falling off or loosening due to poor connection.

[0086] The recess 1111 may include a first mounting surface facing the top of the main body 11 and a second mounting surface facing the front of the main body 11. The first mounting surface and the second mounting surface intersect at a certain angle. Four first magnetic elements 122 are arranged on the first mounting surface, and two first magnetic elements 122 are arranged on the second mounting surface. Second magnetic elements are arranged at corresponding positions on the atomizing module 13. This arrangement allows the atomizing module 13 to receive a more uniform magnetic attraction force in multiple directions, reducing the problem of loosening or falling off caused by force in one direction, and improving the stability of the atomizing module 13.

[0087] In some possible implementations, the recess 1111 is provided with one or more slots (not shown in the figure), and the atomizing module 13 is provided with one or more clips (not shown in the figure). The atomizing module 13 is detachably connected to the main body 11 through the slots and clips. This configuration facilitates the filling of the atomizing module 13 with developer without the need for additional tools, and also facilitates the maintenance of the atomizing module 13.

[0088] In some possible implementations, the recess 1111 is provided with at least one first magnetic element 122, and the atomizing module 13 is provided with at least one second magnetic element. The recess 1111 is provided with one or more slots, and the atomizing module 13 is provided with one or more latches. Through the magnetic attraction between the first magnetic element 122 and the second magnetic element, and the engagement of the slots and latches, the atomizing module 13 is detachably connected to the main body 11. This makes the connection between the atomizing module 13 and the main body 11 more secure.

[0089] Specifically, the main body 11 is provided with a first connecting portion 123, and the atomizing module 13 is provided with a second connecting portion. When the atomizing module 13 is located in the recess 1111, the first connecting portion 123 and the second connecting portion are electrically connected. Through the connection of the first connecting portion 123 and the second connecting portion, the control board of the main body 11 can communicate and control the atomizing module 13. The control board can send signals to start or adjust the atomizing element in the atomizing module 13, so that the developer is atomized.

[0090] For example, the first connecting part 123 is configured as a socket, and the second connecting part is configured as a pin. This facilitates the user's connection and disconnection of the atomizing module 13 from the main body 11.

[0091] It is easy to understand that different compositions or concentrations of physical evidence will produce different effects after reacting with the developing solution. Therefore, different developing solutions can be prepared for different types of physical evidence to improve the developing effect of laser irradiation on the developing solution.

[0092] Therefore, the atomizing module 13 is provided with a cavity, and at least one partition 134 is provided inside the cavity. The partition 134 can divide the cavity into multiple independent solution chambers 135, and each solution chamber 135 contains a different developing solution. At the same time, each solution chamber 135 is provided with an outlet 136 and an atomizing element 131 on its front side. The atomizing element 131 is located in front of the outlet 136 and can atomize the developing solution flowing out of the outlet 136 to form an atomized developing solution. By providing different developing solutions in multiple solution chambers 135, a suitable developing solution can be selected according to the concentration or composition of the evidence, thereby ensuring the effect of the evidence reacting with the developing solution, and thus improving the developing effect of laser irradiation on the developing solution, avoiding the problem of blurred development, and improving the accuracy of evidence extraction.

[0093] For example, the atomizing element 131 can be an ultrasonic oscillating plate. Through the high-frequency vibration of the ultrasonic oscillating plate, electrical energy is converted into mechanical energy, and through cavitation effect or disruption of the surface tension of the developer, the developer is decomposed into fine droplets (such as 1 to 5 micrometers in diameter) to form atomized developer.

[0094] Each solution chamber 135 is provided with a liquid filling port 132 facing the top of the solution chamber 135. Through the liquid filling port 132, the developing solution can be filled into each solution chamber 135 or a secondary filling of the developing solution can be performed, thereby improving the applicability of the evidence discovery device 10.

[0095] Furthermore, this design utilizes the gravity of the developer to make it easier to inject it into the solution chamber 135. The position of the filling port 132 allows the user to easily observe the developer injection process, ensuring the accuracy of the injection volume.

[0096] The atomizing module 13 includes multiple sealing caps 133, which are detachably mounted on each liquid inlet 132. The sealing caps 133 prevent the evaporation, leakage, and contamination of the developing solution to ensure its effectiveness after reaction with the evidence.

[0097] For example, the sealing cap 133 can be a rubber stopper. The rubber stopper has good elasticity and sealing performance. The rubber stopper can be operated by simple pressing or pulling actions, allowing the user to easily open or close the liquid filling port 132.

[0098] For example, the sealing cap 133 can be either a bottle cap type or a screw-on type. A bottle cap type stopper is easy to operate and can increase the speed at which the filling port 132 can be opened or closed. A screw-on type stopper can improve the sealing and safety of the filling port 132.

[0099] It's easy to understand that when the developer in the solution chamber 135 needs to be replaced, the existing developer must be discarded. Then, the solution chamber 135 should be cleaned with cleaning fluid, and the vibrating plate wiped to prevent contamination and precipitation between different developers. Similarly, if the evidence detection device 10 is not used for an extended period, the internal developer should also be removed to prevent it from becoming ineffective or deteriorating.

[0100] Furthermore, the main body 11 includes multiple lasers 112, at least some of which are housed within the housing 111. The multiple lasers 112 allow the evidence detection device 10 to emit lasers of different frequencies as needed, matching the excitation requirements of different developing solutions, thereby improving the functional versatility and adaptability of the evidence detection device 10. For example, the multiple lasers 112 can be configured as high-power lasers with different frequency ranges to further enhance the functional versatility and adaptability of the evidence detection device 10.

[0101] In some possible implementations, laser 112 includes a first laser 1121 and a second laser 1122. Laser indicator lights include a first laser indicator light (unlabeled) and a second laser indicator light (unlabeled). The first laser indicator light can display whether the first laser 1121 is emitting laser light, and the second laser indicator light can display whether the second laser 1122 is emitting laser light.

[0102] Multiple mounting ports 1113 are sequentially provided on the front side of the outer casing 111, and the multiple mounting ports 1113 are respectively connected to multiple lasers 112. The laser emitted by the laser 112 is emitted through the mounting ports 1113 of the evidence discovery device 10.

[0103] Different developing solutions may require lasers of different wavelengths for excitation to produce better fluorescence. Multiple lasers 112 are correspondingly arranged with multiple solution chambers 135, and each laser 112 can emit a laser beam that matches the developing solution in its corresponding solution chamber 135. This allows for the emission of appropriate laser frequencies for each developing solution, ensuring the efficiency and effectiveness of the developing process, thereby improving the accuracy and reliability of the evidence detection device 10.

[0104] To prevent the excessive heat generated by the laser 112 during operation from damaging the control board of the evidence detection device 10, the outer casing 111 can be made of metal. Metal has good thermal conductivity, which helps to dissipate the heat generated by the laser 112 during operation and prevents overheating from affecting the performance of the evidence detection device 10.

[0105] In addition, the outer shell 111 can be made of metal material, which can improve the heat dissipation efficiency of the evidence discovery device 10, thereby increasing the power of the laser 112, making the developing reagent produce a more obvious fluorescence effect, and thus improving the display effect of the evidence.

[0106] For example, the outer casing 111 can be made of aluminum alloy, which can reduce the weight of the outer casing 111.

[0107] Furthermore, at least a portion of the outer casing 111 is provided with a knob 118, and the control board and the knob 118 are electrically connected. The knob 118 is installed on the outer casing 111 of the evidence discovery device 10, allowing the user to operate the device. By rotating the knob 118 to different positions, the user can adjust the output frequency of the laser 112, thereby controlling different lasers 112 to emit lasers of different frequencies. This ensures the efficiency and effectiveness of the development process, thus improving the accuracy and reliability of the evidence discovery device 10.

[0108] Specifically, by using a partition 134 extending in the front-to-back direction to divide the cavity into a first solution cavity 1351 and a second solution cavity 1352, the mixing of different developing solutions can be prevented, ensuring the purity and functionality of the developing solution.

[0109] The first solution chamber 1351 contains a first developing solution, and the second solution chamber 1352 contains a second developing solution. This allows the evidence detection instrument 10 to select the appropriate developing solution for evidence of different concentrations or compositions, thereby improving the accuracy and clarity of the developing effect.

[0110] Specifically, a switching button 121 is provided on the rear side of the outer casing 111, and the switching button 121 is electrically connected to the control board. By operating the switching button 121, the control board can issue commands to switch the functional state of the evidence discovery device 10, thereby improving the ease of operation of the evidence discovery device 10.

[0111] When the switch button 121 and the control panel are in the first state, the atomizing element 131 atomizes the first developing solution to form a first atomized developing solution, which is suitable for the type of evidence that requires the developing solution.

[0112] When the switch button 121 and the control panel are in the second state, the atomizing element 131 atomizes the second developing solution to form a second atomized developing solution, which is suitable for the type of evidence that requires the developing solution.

[0113] When the switch button 121 and the control panel are in the third state, the atomizing element 131 atomizes the first and second developing solutions to form a third atomized developing solution, which is suitable for mixing developing solutions to enhance the developing effect of physical evidence.

[0114] When the switch button 121 and the control panel are in the fourth state, the atomizing element 131 does not atomize the first and second developing solutions. The evidence discovery device 10 can stop the atomization function when development is not required, according to user needs, saving developing solution and reducing unnecessary power consumption.

[0115] In some possible implementations, the atomizing module 13 includes an atomizing indicator light 120. The atomizing indicator light 120 allows for easy viewing of the status of the sprayed atomized developer. The atomizing indicator light 120 is located on the rear side of the housing 111 for easy observation by the user.

[0116] Specifically, the atomization indicator light 120 includes a first atomization indicator light 1201 and a second atomization indicator light 1202. The first atomization indicator light 1201 indicates whether the evidence detection device 10 has sprayed the first atomizing developer. The second atomization indicator light 1202 indicates whether the evidence detection device 10 has sprayed the second atomizing developer. This configuration allows for convenient identification of the spraying status of the atomizing developer through the first atomization indicator light 1201 and the second atomization indicator light 1202.

[0117] In some possible implementations, the main body 11 is provided with a power supply mounting part (not labeled), which is detachably connected to an external power supply. Users can install or remove the external power supply as needed. This improves the portability and flexibility of the evidence discovery device 10.

[0118] For example, the power supply mounting section can be located below the handle section 1112 to facilitate the removal of the external power supply.

[0119] When the external power supply is connected to the power supply mounting unit, the external power supply is electrically connected to the main body 11 and can supply power to the main body 11. The external power supply can supply power to the evidence discovery device 10, which can be used for on-site investigation work that requires long-term continuous operation, reducing investigation interruptions caused by insufficient power and improving the reliability of the evidence discovery device 10.

[0120] The following is a detailed introduction to the use of the evidence discovery device.

[0121] First, remove the atomizing module 13 from the main body 11, open the sealing cover 133 of the atomizing module 13, fill different developing solutions into the corresponding solution chambers 135, and then connect the sealing cover 133 to the outlet 136 to prevent leakage.

[0122] Second, the atomizing module 13 is installed on the main body 11, and the first connecting part 123 and the second connecting part are electrically connected.

[0123] Third, turn on the switch 115 of the main body 11, and the power display module 116 will display the current power status.

[0124] Fourth, rotate knob 118 to different positions to adjust the output frequency of laser 112. Operate laser control unit 113 to make evidence detection device 10 emit laser light. At this time, the laser can provide illumination.

[0125] Fifth, operate the switch button 121 to adjust the status of the switch button 121 and the control panel. Observe the atomization indicator light 120 to confirm the status of the sprayed atomized developer.

[0126] Sixth, after the physical evidence reacts with the developing solution, irradiate key areas of the scene to collect evidence.

[0127] Finally, after the investigation is completed, turn off the switch 115 of the evidence discovery device 10.

[0128] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0129] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A physical evidence detection device, characterized in that, include: Main body (11) and atomizing module (13); The main body (11) includes a shell (111), and a recess (1111) is provided on the front side of the shell (111), the recess (1111) being used to install the atomizing module (13); The atomizing module (13) is provided with a cavity, and at least one partition (134) is provided in the cavity. The partition (134) can divide the cavity into multiple independent solution chambers (135), and each solution chamber (135) is provided with a different developing solution. Each of the solution chambers (135) is provided with a liquid outlet (136) and an atomizing element (131) on its front side. The atomizing element (131) is provided on the front side of the liquid outlet (136) and can atomize the developer flowing out of the liquid outlet (136) to form an atomized developer.

2. The evidence discovery device according to claim 1, characterized in that, Each of the solution chambers (135) is provided with a liquid inlet (132) facing the top of the solution chamber (135); Each of the solution chambers (135) receives the developer solution through the liquid inlet (132).

3. The evidence discovery device according to claim 2, characterized in that, The atomizing module (13) includes multiple sealing caps (133), which are detachably disposed at each liquid inlet (132).

4. The evidence discovery device according to claim 1, characterized in that, The main body (11) includes a plurality of lasers (112), at least a portion of which are disposed within the housing (111); The front side of the outer casing (111) is provided with a plurality of mounting ports (1113), and the plurality of mounting ports (1113) are respectively connected to a plurality of lasers (112); Multiple lasers (112) are disposed corresponding to multiple solution chambers (135), and each laser (112) can emit a laser that matches the developing solution in the corresponding solution chamber (135).

5. The evidence discovery device according to claim 4, characterized in that, A control board is provided inside the housing (111), and a knob (118) is provided on at least part of the housing (111). The control board and the knob (118) are electrically connected. The knob (118) is configured such that when the knob (118) is rotated to different positions, the control panel controls different lasers (112) to emit lasers of different frequencies.

6. The evidence detection device according to claim 1, characterized in that, The partition (134) extends along the front-back direction of the atomizing module (13), and the partition (134) divides the cavity to form a first solution cavity (1351) and a second solution cavity (1352); The first solution chamber (1351) contains a first developing solution, and the second solution chamber (1352) contains a second developing solution.

7. The evidence discovery device according to claim 6, characterized in that, A control board is provided inside the housing (111), and a switching button (121) is provided on the rear side of at least part of the housing (111). The control board and the switching button (121) are electrically connected. When the switching button (121) and the control panel are in the first state, the atomizing element (131) atomizes the first developer to form a first atomized developer. When the switching button (121) and the control panel are in the second state, the atomizing element (131) atomizes the second developer to form a second atomized developer. When the switching button (121) and the control panel are in the third state, the atomizing element (131) atomizes the first developer and the second developer to form a third atomized developer. When the switching button (121) and the control panel are in the fourth state, the atomizing element (131) does not atomize the first developer and the second developer.

8. The evidence detection device according to claim 1, characterized in that, The main body (11) and the atomizing module (13) are detachably connected; The main body (11) is provided with a first connecting part (123), and the atomizing module (13) is provided with a second connecting part; When the atomizing module (13) is located in the recess (1111), the first connecting part (123) and the second connecting part are electrically connected.

9. The evidence discovery device according to claim 1, characterized in that, The recess (1111) is provided with at least one first magnetic element (122), and the atomizing module (13) is provided with at least one second magnetic element; The first magnetic component (122) and the second magnetic component are magnetically attracted to each other, and the atomizing module (13) is detachably connected to the main body (11); And / or, the recess (1111) is provided with at least one slot; the atomizing module (13) is provided with at least one buckle, and the atomizing module (13) is engaged with the main body (11) through the slot and the buckle.

10. The evidence discovery device according to claim 1, characterized in that, The main body (11) is provided with a power supply mounting part, which is detachably connected to an external power supply; When the external power supply is connected to the power supply mounting part, the external power supply is electrically connected to the main body (11) and can supply power to the main body (11).

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