CN213309735U - Portable multifunctional fingerprint fuming device - Google Patents

Abstract

The utility model discloses a device is smoked to portable multi-functional fingerprint, include: the device comprises a heater, a controller and a circulating fan which are connected with the heater, and a humidity sensor connected with the controller; the heater comprises an accessory box, a heat insulation plate arranged outside the accessory box, and a first heating plate and a second heating plate which are arranged on the heat insulation plate, wherein an accommodating space is formed in the accessory box, and heating utensils are respectively placed on the first heating plate and the second heating plate to respectively heat water and medicines. The components of the utility model can be stored in a small suitcase after being disassembled, the volume of the device is reduced, and the portability is improved; the fuming space is not limited by matched containers, various closed containers such as cartons, containing boxes, cabinets, small tents and the like can be used as the fuming container, and various plastic films can be used for forming the closed space for fuming. Compared with the similar device, the device has the advantages of large effective fuming space and high flexibility, and is suitable for processing multiple material evidences with different sizes in batch on site.

Description

Portable multifunctional fingerprint fuming device

Technical Field

The utility model relates to a criminal investigation equipment technical field, more specifically say, the utility model relates to a device is smoked to portable multi-functional fingerprint.

Background

In the existing fingerprint fuming equipment, a 502 method and an iodine fuming method are used as main working modes, the design purpose is that the field operation is convenient, and the equipment mainly comprises 5 types:

the box type, the device is provided with an accessory box as a fuming space, has a perfect circulating and filtering system and is suitable for the field treatment of small articles. However, such devices are relatively heavy and bulky compared to other portable devices, and have limited fuming space, and cannot handle large physical evidence or a plurality of small physical evidences at a time.

In the case of a hood, the device is small in volume and weight, and the design target is mainly sweat latent fingerprints (such as wall surfaces) on the surfaces of various complex objects and the field treatment of small articles. It is like a box and cannot handle large pieces of material or a large number of small pieces of material in a batch.

The device is mainly used for displaying fingerprints inside a vehicle involved in a case, and can also be used for displaying objects in a room with the square meter below 20 in a whole (fingerprints). The device is mainly used for displaying potential fingerprints in the inner space of the vehicle involved in the case, does not consider the problems of fuming containers and real-time intervention outside the fuming space, and is not suitable for general operation of common case sites.

The simple fumigating box/bag is characterized in that the device utilizes strong base catalysis, physical and chemical heating, natural volatilization and other methods to display the fingerprints on site, and has the characteristics of simple structure, portability, easy use and low cost. Such devices do not have humidity control and circulation devices, have a small fuming space, and require close observation by an operator all the way, otherwise, fuming may be excessive.

Large space 502 fumigation systems, such devices are primarily directed to rapid treatment of large items or the interior of a house. The devices are large in size and weight, are not suitable for general field operation, and are only suitable for planned comprehensive treatment in a large range in a certain space.

The fingerprint fuming equipment has the defects that the fuming space is limited by the volume of a container, the flexibility of field operation is low, and the contradiction between batch processing of multiple material evidences with different sizes and equipment portability cannot be considered on the premise of ensuring the fuming effect.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to address at least the above-mentioned deficiencies and to provide at least the advantages which will be explained later.

Another object of the utility model is to provide a smoked portable multi-functional fingerprint that shows device that shows space is big, the flexibility is high, is fit for the many material evidences of scene batch processing equidimension not.

In order to realize these objects and other advantages of the present invention, the present invention provides a portable multifunctional fingerprint fuming device, including: the device comprises a heater, a controller and a circulating fan which are connected with the heater, and a humidity sensor connected with the controller;

the heater comprises an accessory box, a heat insulation plate arranged outside the accessory box, a first heating plate and a second heating plate, wherein the first heating plate and the second heating plate are arranged on the heat insulation plate, an accommodating space is formed inside the accessory box, and heating utensils are placed on the first heating plate and the second heating plate respectively to heat water and medicines respectively.

In the technical scheme, the components can be stored in the suitcase after being disassembled, so that the volume of the device is reduced, and the portability is improved; the structural design of heater not only can heat the medicine and accomplish and smoked the apparent, and can add hot water simultaneously and adjust the humidity of smoked apparent environment, and the heat insulating board can effectively keep apart heat and electricity, guarantees the security of device. The accessory case can be loaded with a large number of accessories.

Meanwhile, the fuming space of the device is not limited by a matched container, various cartons, containing boxes, cabinets and small tents can be used as the fuming container, and various plastic films can be used for forming a closed space for fuming. Compared with the similar device, the device has the advantages of large effective fuming space and high flexibility, and is suitable for processing multiple material evidences with different sizes in batch on site.

In addition, the device can be powered by various modes such as commercial power, an external battery, a vehicle battery and the like, and is convenient for field operation. The device is provided with a detachable circulating fan, and the positions and the number of the circulating fans are reasonably arranged according to the size and the shape of the fuming space so as to obtain the best display effect.

Preferably, in the portable multifunctional fingerprint fuming device, the heater and the controller, the controller and the humidity sensor, and the heater and the circulating fan are connected through pluggable cables. The combined structure is smaller in size and weight compared with similar devices, and is convenient to store, carry, install, distribute and place.

Preferably, the portable multifunctional fingerprint fuming device further comprises a plastic film or cloth for constructing the closed fuming space. The plastic film or cloth is easy to fold and convenient to carry, and the fumigation space which can be constructed can be large or small.

Preferably, the portable multifunctional fingerprint fuming device further comprises a direct current power supply or an alternating current power supply, such as a lithium battery.

Preferably, the portable multifunctional fingerprint fuming device, the accessory box is of a rectangular structure, the heat insulation plate is arranged on the top surface of the accessory box and has an interval with the accessory box, the first heating plate and the second heating plate are arranged on the surface of the heat insulation plate and have an interval with the heat insulation plate, the heating vessel is movably arranged on the heating plate to be heated, and the accessory box is of an openable structure so as to put in and take out objects from the accommodating space. The opening and closing structure of the accessory box is beneficial to storage, the size of the device is reduced, the portability is improved, the design of the interval makes an air heat insulation layer be formed between the heating plate and the heat insulation plate and between the heat insulation plate and the accessory box, and the heat insulation effect is improved.

Preferably, in the portable multifunctional fingerprint fuming device, the controller comprises:

a logic circuit connected to the humidity sensor and the heater, respectively; the logic circuit receives a signal of the humidity sensor and controls the operation of a first heating plate and a second heating plate in the heater, the first heating plate and the second heating plate respectively heat water and medicines, the heated water is evaporated or the air is directly heated, so that the humidity of the fuming space can be changed, the purposes of dehumidification or humidity control are achieved, and the medicines can be heated to finish the fuming operation;

the humidity adjusting module is connected with the logic circuit and sends a humidity adjusting instruction to the logic circuit, and the logic circuit controls the operation of the heater according to the humidity adjusting instruction and a signal of the humidity sensor; the relative humidity of the air can be reduced by increasing the air temperature; the relative humidity of the air can be improved by the water vapor generated by heating the water, and the humidity of the fuming space can be adjusted by the humidity adjusting module. The module can make the humidity automatically work according to a set value and can also switch manual control at any time.

And the medicine heating time adjusting module is connected with the logic circuit and sends the medicine heating time adjusting instruction to the logic circuit, and the logic circuit controls the operation of the heating plate for heating the medicine. The module enables the medicine heating to automatically work according to a set value and can also be switched to be manually controlled at any time.

And the humidifying time adjusting module is connected with the logic circuit and transmits a humidifying time adjusting instruction to the logic circuit, and the logic circuit adjusts the time for heating water by the heater according to the instruction.

Preferably, in the portable multi-functional fingerprint smoked device, still include the support, circulation fan passes through the support and establishes directly over first hot plate or second hot plate, the support includes:

the four supporting legs are vertically arranged and are of telescopic structures so as to adjust the overall height of the support;

the four cross rods are horizontally arranged, two ends of each cross rod are respectively connected with adjacent supporting legs, and the cross rods are of telescopic structures so as to adjust the whole width of the support;

and four inclined plates which are respectively arranged at the top ends of the supporting legs and are inclined outwards, wherein the inner surfaces of the inclined plates are provided with rubber layers for elastically supporting the circulating fan arranged on the inner sides of the inclined plates.

During the use, according to circulating fan's size, adjust the horizontal pole and make the width of support fit, ensure that circulating fan level places at the hang plate inboard and not fall, adjustment supporting leg length makes support to suitable height, starts circulating fan and just can diffuse the steam or the medicine steam that the heating household utensils produced rapidly, improves the degree of consistency of steam for the efficiency of humidity control and the efficiency that the medicine smoked shows. And the telescopic structure of supporting leg and horizontal pole makes the collapsible shrink of support, has improved the portability, accomodates also more portably.

The fuming principle is as follows:

502 visualization of sweat latent fingerprints: the alpha-ethyl cyanoacrylate in the glue 502 can perform a complexing reaction with sweat and amino acid in the fingerprint, so that the latent fingerprint is displayed, and the displayed optimal relative humidity is about 80%.

Iodine vapor development of sweat latent fingerprints: iodine vapor tends to adsorb to the grease that is latent in the fingerprint, thereby staining it out.

The utility model discloses at least, include following beneficial effect:

the components of the utility model can be stored in the accessory box after being disassembled, thereby reducing the volume of the device and improving the portability; the structural design of heater not only can heat the medicine and accomplish and smoked the apparent, and can add hot water simultaneously and adjust the humidity of smoked apparent environment, and the heat insulating board can effectively insulate against heat and electricity, guarantees the security of device.

The utility model discloses a smoked space that shows does not receive supporting container restriction, can use airtight container such as various cartons, containing box, cupboard, little tent as smoked container that shows, also usable various plastic film gather materials on the spot and constitute the enclosure space and smoke and show. Compared with the similar device, the device has the advantages of large effective fuming space and high flexibility, and is suitable for processing multiple material evidences with different sizes in batch on site.

The utility model discloses can use multiple modes such as commercial power, external battery, vehicle storage battery to supply power, make things convenient for the field operation. The device is provided with a detachable circulating fan, and the positions and the number of the circulating fans are reasonably arranged according to the size and the shape of the fuming space so as to obtain the best display effect.

The utility model discloses a composite structure, device volume weight of the same kind is less relatively, and convenient storage carries and installs the cloth and put.

The utility model discloses a controller simple structure directly utilizes the current logic circuit in market to make up, has characteristics such as the source is extensive, low cost, easy maintenance, has saved the link of special development, and ordinary technician contrast drawing can self-control circuit, does benefit to a ray of popularization and application.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic view of the connection structure of the portable multifunctional fingerprint fuming device of the present invention;

fig. 2 is a schematic structural diagram of the heater of the present invention;

fig. 3 is a schematic structural view of the circulation fan of the present invention disposed on the heater through the bracket;

fig. 4 is a schematic structural view of the bracket of the present invention.

Detailed Description

The present invention is further described in detail below with reference to examples so that those skilled in the art can implement the invention with reference to the description.

As shown in FIGS. 1-2, a portable multifunctional fingerprint fuming device comprises: the device comprises a heater, a controller and a circulating fan which are connected with the heater, and a humidity sensor connected with the controller;

as shown in fig. 2, the heater includes an accessory box 1, a heat insulation plate 2 disposed outside the accessory box 1, and a first heating plate 3 and a second heating plate 4 disposed on the heat insulation plate 2, wherein an accommodation space is formed inside the accessory box 1, and heating vessels are respectively disposed on the first heating plate 3 and the second heating plate 4 to respectively heat water and chemicals.

In the embodiment, the components can be stored in the suitcase after being disassembled, so that the volume of the device is reduced, and the portability is improved; the structural design of heater not only can heat the medicine and accomplish and smoked the apparent, and can add hot water simultaneously and adjust the humidity of smoked apparent environment, and the heat insulating board can effectively keep apart heat and electricity, guarantees the security of device.

Meanwhile, the fuming space of the device is not limited by a matched container, various closed containers such as cartons, containing boxes, cabinets, small tents and the like can be used as the fuming container, and various plastic films can be used for forming the closed space for fuming. Compared with the similar device, the device has the advantages of large effective fuming space and high flexibility, and is suitable for processing multiple material evidences with different sizes in batch on site.

In addition, the device can be powered by various modes such as commercial power, an external battery, a vehicle battery and the like, and is convenient for field operation. The device is provided with a detachable circulating fan, and the positions and the number of the circulating fans are reasonably arranged according to the size and the shape of the fuming space so as to obtain the best display effect.

Furthermore, the heater and the controller, the controller and the humidity sensor, and the heater and the circulating fan are connected through pluggable cables. Compared with the similar devices, the combined type structure has smaller volume and weight, and is convenient to store, carry, install, distribute and place.

Further, the device also comprises a plastic film or cloth for constructing the closed fuming space. The plastic film or cloth is easy to fold and convenient to carry, and the fuming space which can be constructed can be large or small, thereby being convenient for quick adjustment.

Further, a direct current power supply or an alternating current power supply for supplying power, such as a lithium ion battery, is also included.

Further, as shown in fig. 2, the accessory box 1 is a rectangular structure, the heat insulating plate 2 is disposed on the top surface of the accessory box 1 and has a first interval 6 with the accessory box 1, the first heating plate 3 and the second heating plate 4 are disposed on the surface of the heat insulating plate 2 and have a second interval 5 with the heat insulating plate 2, the heating vessel is movably disposed on the heating plates for heating, and the accessory box 1 is an openable structure so as to put and take out an object into and from the accommodating space. The opening and closing structure of the accessory box 1 is beneficial to storage, the size of the device is reduced, the portability is improved, the design of the interval enables an air heat insulation layer to be formed between the heating plate and the heat insulation plate 2 and between the heat insulation plate 2 and the accessory box 1, and the heat insulation effect is improved.

Further, the controller includes:

a logic circuit connected to the humidity sensor and the heater, respectively; the logic circuit receives a signal of the humidity sensor and controls the operation of a first heating plate and a second heating plate in the heater, the first heating plate and the second heating plate respectively heat water and medicines, the heated water is evaporated or the air is directly heated, so that the humidity of the fuming space can be changed, the purposes of dehumidification or humidity control are achieved, and the medicines can be heated to finish the fuming operation;

the humidity adjusting module is connected with the logic circuit and sends a humidity adjusting instruction to the logic circuit, and the logic circuit controls the operation of the heater according to the humidity adjusting instruction and a signal of the humidity sensor; the relative humidity of the air can be reduced by increasing the air temperature; the relative humidity of the air can be improved by the water vapor generated by heating the water, and the humidity of the fuming space can be adjusted by the humidity adjusting module. The module can make the humidity automatically work according to a set value and can also switch manual control at any time.

And the medicine heating time adjusting module is connected with the logic circuit and sends the medicine heating time adjusting instruction to the logic circuit, and the logic circuit controls the operation of the heating plate for heating the medicine. The module enables the medicine heating to automatically work according to a set value and can also be switched to be manually controlled at any time.

And the humidifying time adjusting module is connected with the logic circuit and transmits a humidifying time adjusting instruction to the logic circuit, and the logic circuit adjusts the time for heating water by the heater according to the instruction.

Further, in another embodiment, as shown in fig. 3, the heating device further comprises a bracket, and the circulating fan 8 is supported at any position in the fuming space through the bracket 7 as required, and can also be erected right above the heating vessel; as shown in fig. 4, the holder 7 includes:

the support comprises four support legs 701 which are vertically arranged, wherein the support legs 701 are of a telescopic structure so as to adjust the overall height of the support;

the support comprises four cross bars 702 which are horizontally arranged, two ends of each cross bar 702 are respectively connected with adjacent support legs 701, and the cross bars 702 are of telescopic structures so as to adjust the whole width of the support;

four inclined plates 703 which are provided at the tip ends of the support legs 701 and are inclined outward, respectively, and a rubber layer 704 is provided on the inner surface of the inclined plates 703 to elastically support the circulation fan 8 placed inside the inclined plates 703. The circulation fan 8 is placed inside the inclined plate, and four inclined plates support four sides of the circulation fan 8, respectively.

During the use, according to circulating fan 8's size, adjust horizontal pole 702 and make the width of support 7 fit, ensure that circulating fan 8 level is placed inboard at hang plate 703 and not dropped, adjustment supporting leg 701 length makes support to suitable height, start circulating fan 8 and just can diffuse with the steam and the medicine steam that the heating household utensils produced rapidly in order to guarantee its degree of consistency in fumigating the space to guarantee to fumigate the effect.

The utility model discloses the realization process is as follows:

1. connecting a controller with the heater;

2. connecting a controller with a humidity sensor;

3. connecting a circulation fan with the heater;

4. putting a heater, a humidity sensor, a circulating fan and the material evidence to be treated into the same closed space;

5. according to the adopted reagent and the purpose, the humidity and the humidification time are adjusted through the humidity adjusting module and the humidification time adjusting module, and the showing operation is carried out.

6. After starting, the device works according to the adjusted set value, and the working process can be manually intervened by the controller in the period.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art.

Claims (7)

1. The utility model provides a device is smoked to portable multi-functional fingerprint which characterized in that includes: the device comprises a heater, a controller and a circulating fan which are connected with the heater, and a humidity sensor connected with the controller;

the heater comprises an accessory box, a heat insulation plate arranged outside the accessory box, a first heating plate and a second heating plate, wherein the first heating plate and the second heating plate are arranged on the heat insulation plate, an accommodating space is formed inside the accessory box, and heating utensils are placed on the first heating plate and the second heating plate respectively to heat water and medicines respectively.

2. The portable multifunctional fingerprint fuming device as recited in claim 1, wherein the heater and the controller, the controller and the humidity sensor, and the heater and the circulating fan are connected by pluggable cables.

3. The portable multifunctional fingerprint fuming device as recited in claim 1, further comprising a plastic film or cloth for constructing the enclosed fuming space.

4. The portable multi-functional fingerprint fuming device of claim 1, further comprising a dc power source and an ac power source for supplying power.

5. The portable multifunctional fingerprint fuming device as recited in claim 1, wherein the accessory box has a rectangular structure, the heat insulating plate is disposed on the top surface of the accessory box and has a space from the accessory box, the first heating plate and the second heating plate are disposed on the surface of the heat insulating plate and have a space from the heat insulating plate, the heating vessel is movably disposed on the heating plates for heating, and the accessory box has an openable and closable structure for putting and taking out the object into and from the accommodating space.

6. The portable multi-functional fingerprint dry-show device of claim 1 wherein said controller comprises:

a logic circuit connected to the humidity sensor and the heater, respectively;

a humidity adjustment module connected to the logic circuit;

a medicine heating time adjusting module connected with the logic circuit;

and the humidifying time adjusting module is connected with the logic circuit.

7. The portable multifunctional fingerprint fuming device as recited in claim 1, further comprising a bracket, wherein the circulating fan is supported directly above the first heating plate or the second heating plate by the bracket, and the bracket comprises:

the four supporting legs are vertically arranged and are of telescopic structures so as to adjust the overall height of the support;

the four cross rods are horizontally arranged, two ends of each cross rod are respectively connected with adjacent supporting legs, and the cross rods are of telescopic structures so as to adjust the whole width of the support;

and four inclined plates which are respectively arranged at the top ends of the supporting legs and are inclined outwards, wherein the inner surfaces of the inclined plates are provided with rubber layers for elastically supporting the circulating fan arranged on the inner sides of the inclined plates.

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