Temperature and time adjustable electric heating fingerprint rapid baking device

Abstract

The utility model relates to the technical field of forensic science criminal, specifically relates to the auxiliary equipment specially for laboratory trace examination research, more specifically, a kind of adjustable temperature and time's electric heating fingerprint rapid baking device.A kind of adjustable temperature and time's electric heating fingerprint rapid baking device, including box, the tray for supporting experimental article is equipped in box;Still include lid, lid covers on the opening of box, machine head is fixed on lid, heater and fan are equipped in machine head, heater is towards box and heats, fan is towards heater and blows out.This utility model is favorable to fast drying paper by the action of heater, fumigation shows fingerprint;The overall stability is good when baking device operates, so that experiment has complete, objective, stable trace reflection under certain same condition.The utility model discloses the baking device volume is smaller, fumigation and drying temperature, time and so on can be adjusted, and the use range is wide, and it is easy to operate.

Description

Technical Field

[0001] This utility model relates to the technical field of forensic science and criminal law, specifically to auxiliary equipment for laboratory trace evidence examination and research, and more specifically, to an electrothermal fingerprint rapid baking device with adjustable temperature and time. Background Technology

[0002] Currently, forensic laboratory equipment used for developing latent fingerprints on paper evidence in trace evidence examination and crime scene investigation suffers from several drawbacks. These include large size, difficulty in portability, unsuitability for on-site operation, slow heating, uneven heating of items, and high equipment cost. Most domestic laboratories follow reagent usage instructions without meticulous attention to drying temperature and time. Methods for developing latent fingerprints on paper items in laboratories primarily include reagent spraying, soaking, and fumigation. The speed and effectiveness of fingerprint development depend not only on the type and brand of the developing reagent but also directly on the temperature, humidity, and equipment of the developing environment. Given a clear development method, controlling drying temperature and time becomes crucial. Existing equipment suffers from large size, low fumigation and drying temperatures, and relatively long drying times. To ensure complete, objective, and stable trace reflection under consistent conditions, a device is needed to better address these technical problems. Utility Model Content

[0003] The present invention aims to solve the above-mentioned technical problems to at least a certain extent, and provides an electrothermal fingerprint rapid baking device with adjustable temperature and time. The baking device is small in size, and the temperature and time of smoking and drying can be adjusted, so that the experiment can have complete, objective and stable trace reflection under certain identical conditions.

[0004] The technical solution of this utility model is: an adjustable temperature and time electrothermal fingerprint rapid baking device, which includes a box body, and the box body is provided with a tray for supporting experimental items.

[0005] It also includes a cover that covers the opening of the box, and an organic head is fixed on the cover. The organic head is equipped with a heater and a fan. The heater heats the inside of the box, and the fan blows air towards the heater.

[0006] In this invention, the experimental material can be paper, which is placed on a tray. The heater facilitates rapid drying of the paper and the development of fingerprints. Furthermore, the fan directs airflow towards the heater, which is cooled by the airflow, thus rapidly dissipating heat. Therefore, the baking device exhibits good overall stability during operation, ensuring complete, objective, and stable traces under identical experimental conditions.

[0007] Furthermore, the machine head surface is equipped with a first adjustment button and a second adjustment button, and a display screen is located above the first and second adjustment buttons. The first adjustment button can be a temperature adjustment button, and the second adjustment button can be a time adjustment button. These two buttons allow for comprehensive control of the temperature and time of the baking device, with precise adjustments down to the degree Celsius (°C) and second (S), providing fine-tuning and improving baking accuracy. Additionally, the display screen accurately shows the temperature and time in real time, allowing researchers to more intuitively understand the experimental process.

[0008] Furthermore, the surface of the machine head is also provided with a first indicator light and a second indicator light, which are located below the first adjustment button and the second adjustment button. The first indicator light can be a power indicator light, showing the power on / off status. The second indicator light can be a temperature control indicator light, showing the temperature control on / off status.

[0009] Furthermore, the temperature- and time-adjustable electrothermal fingerprint rapid baking device also includes a support frame, which is located outside the housing and supports the housing. The support frame includes a main support and handles fixed to both sides of the main support. The main support has a circular structure and supports the housing. In this invention, the support frame with handles not only supports the housing but also allows the housing to be lifted and moved as a whole.

[0010] Furthermore, the surface of the machine head is also provided with heat dissipation holes. These holes prevent overheating inside the machine head.

[0011] Furthermore, both the chamber and the lid are made of transparent material. This transparent structure allows researchers to easily observe the baking process inside the chamber and make quick adjustments based on the results.

[0012] Furthermore, the tray is a steel grating frame. The tray, a metal-framed grating frame, is placed at the bottom of the box to facilitate the support of experimental items.

[0013] Furthermore, the box body is a cylindrical structure. The cylindrical structure of the box body facilitates the loading of experimental items. In addition, the fan of this invention has a circular rotating blade structure, which starts working synchronously when the head is powered on.

[0014] Compared with existing technologies, the advantages of this invention are: the heater facilitates rapid drying of paper and fingerprint detection; moreover, the fan directs air towards the heater, which is cooled by the airflow, thus rapidly dissipating heat. Therefore, the baking device exhibits better overall stability during operation, ensuring complete, objective, and stable traces under identical experimental conditions.

[0015] The baking device of this invention is small in size, and the temperature and time for smoking and drying can be adjusted. It has a wide range of applications and is easy to operate.

[0016] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure.

[0018] Figure 2 This is a schematic diagram of the overall exploded structure.

[0019] Figure 3 This is a schematic diagram of the overall main view structure.

[0020] Figure 4 This is a schematic diagram of the overall front view assembly. Detailed Implementation

[0021] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0022] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] like Figure 1-4 As shown, an adjustable temperature and time electrothermal fingerprint rapid baking device includes a box 1, and a tray 2 for supporting experimental items is provided inside the box 1.

[0024] It also includes a cover 4, which covers the opening of the box 1. An organic head 40 is fixed on the cover 4. A heater and a fan are provided inside the organic head 40. The heater heats the inside of the box 1, and the fan blows air towards the heater.

[0025] In this embodiment, both the heater and the fan are located inside the machine head 40, and therefore are not shown in the figure. The experimental material can be paper, which is placed on tray 2. The heater helps to quickly dry the paper and reveal fingerprints; moreover, the fan blows air towards the heater, and the heater is cooled by the air from the fan, which can quickly dissipate heat from the heater. Therefore, the baking device has good overall stability during operation, so that the experiment can show complete, objective and stable traces under the same conditions.

[0026] More preferably, the surface of the machine head 40 is provided with a first adjustment button 7 and a second adjustment button 8, and a display screen 12 is provided above the first adjustment button 7 and the second adjustment button 8.

[0027] In this embodiment, the first adjustment button 7 can be a temperature adjustment button, and the second adjustment button 8 can be a time adjustment button. The temperature and time of the baking apparatus can be comprehensively controlled via these two buttons, allowing for precise adjustment down to the degree Celsius (°C) and second (S), thus improving the accuracy of the baking process. Furthermore, the display screen 12 can accurately display the temperature and time in real time, providing researchers with a more intuitive understanding of the experimental process.

[0028] More specifically, the surface of the machine head 40 is also provided with a first indicator light 10 and a second indicator light 11, which are located below the first adjustment button 7 and the second adjustment button 8. The first indicator light 10 can be a power indicator light, showing the power on / off status. The second indicator light 11 can be a temperature control indicator light, showing the temperature control on / off status.

[0029] Furthermore, the temperature- and time-adjustable electrothermal fingerprint rapid baking device also includes a support 3, which is located outside the housing 1 and serves to support the housing 1. The support 3 includes a main support 31 and handles 32 fixed to both sides of the main support 31. The main support 31 has a circular structure and supports the housing 1. In this embodiment, the support 3 with handles 32 is provided, which can both support the housing 1 and lift and move the housing 1 as a whole.

[0030] Specifically, the surface of the head unit 40 is also provided with heat dissipation holes 41. These holes prevent overheating inside the head unit 40. Additionally, the head unit 40 is connected to a power cord 9 for connecting to an external power source. The power cord 9 can accept 220V AC power and has a rated power of 1300W.

[0031] Furthermore, both the chamber 1 and the lid 4 are made of transparent material. This transparent structure allows researchers to easily observe the baking process inside the chamber 1 and make quick adjustments based on the results.

[0032] Furthermore, tray 2 is a steel grating frame, and box 1 is a cylindrical structure. Tray 2, a metal-framed grating frame, is placed at the bottom of box 1 for easy support of experimental items. The cylindrical structure of box 1 facilitates loading of experimental items. In addition, the fan of this invention has a circular rotating blade structure, which starts working synchronously when the head is powered on.

[0033] In this embodiment, there are temperature and time adjustment buttons, which can be configured as power buttons, start buttons, or raising / lowering buttons. The temperature can be adjusted up to 250°C, and the time can be adjusted up to 300 seconds. Furthermore, the machine head 40 in this embodiment integrates a circuit board, heater, fan, etc., allowing for comprehensive control of time and temperature. If any component is damaged, it can be repaired or replaced by disassembling the machine head 40, reducing costs.

[0034] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A temperature- and time-adjustable electrothermal fingerprint rapid baking device, characterized in that, Includes a box (1), and the box (1) is provided with a tray (2) for supporting experimental items; It also includes a cover (4), which covers the opening of the box (1), and an organic head (40) is fixed on the cover (4). The organic head (40) is provided with a heater and a fan. The heater heats the box (1) and the fan blows air towards the heater.

2. The adjustable temperature and time electrothermal fingerprint rapid baking device according to claim 1, characterized in that: The machine head (40) surface is provided with a first adjustment button (7) and a second adjustment button (8), and a display screen (12) is provided above the first adjustment button (7) and the second adjustment button (8).

3. The adjustable temperature and time electrothermal fingerprint rapid baking device according to claim 2, characterized in that: The machine head (40) surface is also provided with a first indicator light (10) and a second indicator light (11), which are located below the first adjustment button (7) and the second adjustment button (8).

4. The adjustable temperature and time electrothermal fingerprint rapid baking device according to claim 3, characterized in that: The temperature- and time-adjustable electrothermal fingerprint rapid baking device also includes a bracket (3), which is located outside the box (1) and is used to support the box (1).

5. The adjustable temperature and time electrothermal fingerprint rapid baking device according to claim 4, characterized in that: The bracket (3) includes a main bracket (31) and handles (32) fixed on both sides of the main bracket (31). The main bracket (31) has a circular structure and supports the box (1).

6. The adjustable temperature and time electrothermal fingerprint rapid baking device according to claim 5, characterized in that: The surface of the machine head (40) is also provided with heat dissipation holes (41).

7. The adjustable temperature and time electrothermal fingerprint rapid baking device according to claim 1, characterized in that: The box (1) and the cover (4) are both made of transparent material.

8. The adjustable temperature and time electrothermal fingerprint rapid baking device according to claim 1, characterized in that: The tray (2) is a steel grating frame.

9. A rapid electric fingerprint baking device with adjustable temperature and time according to any one of claims 1 to 8, characterized in that: The box (1) is a cylindrical structure.

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