CN215503014U

CN215503014U - Handheld rapid fuming device

Info

Publication number: CN215503014U
Application number: CN202120924722.1U
Authority: CN
Inventors: 黄伟; 陈俊斌
Original assignee: Fujian Police College
Current assignee: Fujian Police College
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-01-14
Anticipated expiration: 2031-04-30

Abstract

The utility model provides a hand-held rapid fuming device, which comprises: the container is provided with a cavity and an upper cover, the cavity is divided into a glue cavity and a clear water cavity, the upper parts of the glue cavity and the clear water cavity are communicated with the upper cover to form a mixed steam flow channel, and the mixed steam flow channel is provided with a hot air inlet and a mixed steam outlet; the air outlet of the hot air gun is connected with the hot air inlet of the mixed steam flow channel; and the fuming head is connected with the mixed steam outlet of the mixed steam flow channel. The portable quick fuming device has the advantages of simple structure, small volume, complete hand-held operation, convenience and quickness.

Description

Handheld rapid fuming device

[ technical field ] A method for producing a semiconductor device

The utility model relates to the field of auxiliary equipment for detecting cases, in particular to a handheld rapid fuming device which can be applied to extraction of trace material evidences such as fingerprints, palm prints, footprints, blood prints and the like.

[ background of the utility model ]

Among the extraction techniques of fingerprints, palm prints and the like used in the criminal investigation field, the 502 fumigation technique has a significant position and is widely applied to smooth and impermeable objects. "502" is an adhesive based on ethyl alpha-cyanoacrylate. The structure of the compound contains Cyano (CN) and ester (-COOR), and the anionic polymerization reaction can be carried out under the initiation of electropositive carbon atoms. Under the excitation of the anions, after the '502' monomer, namely the monomer of the ethyl cyanoacrylate, volatilizes, under the excitation of the water and the amino acid in the sweat, a polymerization reaction can occur to generate a solid polymer, namely, a polymerization reaction occurs on the lines of the fingerprints to generate a white polymer.

The existing 502 fuming device (cabinet) consists of three parts, namely a controller, a fuming gun head and a fixed tripod, wherein the controller is connected with the fuming gun head through a control cable, an inlet aviation plug is adopted in a connection mode, and an over-current protection function is adopted in a battery, so that the running stability of the instrument is improved. The gun has a gas circulation function, and has a quantitative humidification function and a heating function. The structure is complex, the volume is large, and the carrying and the operation are not easy, so the device is difficult to be used for the field operation of the case.

The chinese utility model publication No. CN201404219, published at 20100217, discloses a portable in-vehicle 502 fuming device for fingerprint extraction, which comprises a water heater and a humidity controller, a 502 glue heater and a temperature controller, and a master controller provided with a humidity control and a time control, and is characterized in that the water heater and the 502 glue heater are both disposed on the same portable fuming platform, and both heaters are provided with electric heating elements and are connected in parallel to the same power supply; the master controller consists of an external remote control emitter and a remote control receiver arranged in the fuming table; the remote control receiver is connected with the humidity controller and the temperature controller. Although the utility model discloses a smoked display ware is traditional smoked display ware relatively, the volume has reduced a lot, nevertheless still is complicated relatively owing to contain various controllers, heater and special smoked platform of showing, leads to the volume can't reach the degree of handheld operation, and portable degree is low.

[ Utility model ] content

The utility model aims to solve the technical problem of providing a handheld quick fuming device which is simple in structure, small in size, convenient and quick and can be completely operated by hands.

The utility model is realized by the following steps: a hand-held rapid fuming device comprising:

the container is provided with a cavity and an upper cover, the cavity is divided into a glue cavity and a clear water cavity, the upper parts of the glue cavity and the clear water cavity are communicated with the upper cover to form a mixed steam flow channel, and the mixed steam flow channel is provided with a hot air inlet and a mixed steam outlet;

the air outlet of the hot air gun is connected with the hot air inlet of the mixed steam flow channel;

and the fuming head is connected with the mixed steam outlet of the mixed steam flow channel.

Furthermore, a hot air inlet of the mixed steam flow channel is positioned on one side of the glue cavity, and a mixed steam outlet of the mixed steam flow channel is positioned on one side of the clear water cavity.

Further, it is funnel-shaped to smoke the apparent head, including a connecting pipe and a smoked cover that shows, the inner of connecting pipe is connected the mixed steam export of mixed steam flow passageway, the outer end is connected smoked the cover that shows. The connecting pipe may be a rigid or flexible connecting pipe.

Furthermore, the heat gun is a hand-held heat gun with temperature adjusting function and wind force adjusting function.

Furthermore, the air outlet of the hot air gun is detachably connected with the hot air inlet of the mixed steam flow channel; the fuming head is detachably connected with a mixed steam outlet of the mixed steam flow channel.

Furthermore, the upper cover is detachably and hermetically connected with the cavity.

The utility model has the advantages that: the portable rapid fuming device is characterized in that a container is additionally arranged at the front end of a hot air gun, two cavities with communicated upper parts are arranged in the container, 502 glue is dripped in one cavity, clear water is dripped in the other cavity, the glue and the clear water are mixed in a mixed steam flow channel on the upper part after natural volatilization, the hot air flow of the hot air gun is brought to a fuming head, so that the trace physical evidence such as fingerprints, palm marks, footprints, blood marks and the like on an object can be fuming and displayed, the temperature in the container can be raised by the hot air flow of the hot air gun, the volatilization of the 502 glue and the clear water is accelerated, the fuming efficiency is improved, a special heater is not required to be arranged for the 502 glue or the clear water, the whole device has few components and greatly reduced volume, the carrying is greatly facilitated, and the portable rapid fuming device can be operated by only controlling a heating gear and a wind speed gear of the hot air gun, and can be completely operated by one hand, and the portable rapid fuming device is very convenient.

[ description of the drawings ]

The utility model will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic longitudinal cross-sectional view of a container of the present invention.

[ detailed description ] embodiments

The embodiment of the utility model provides the handheld rapid fuming device which is simple in structure, small in size, convenient and rapid, can be operated by hands completely.

In order to solve the above problems, the technical solution in the embodiments of the present invention has the following general idea: a container is additionally arranged at the front end of a hot air gun, two cavities with communicated upper parts are arranged in the container, when the device is used, 502 glue is dripped in one cavity, clear water is dripped in the other cavity, the glue and the clear water are mixed at the upper part of the cavity after natural volatilization to form a-cyanoacrylate ethylene gas with larger humidity, the a-cyanoacrylate ethylene gas is brought to a fuming head through hot air flow of the hot air gun, so that the trace physical evidence such as fingerprints, palm marks, footprints, blood marks and the like on an object can be fuming displayed, the temperature in the container can be raised through the hot air flow of the hot air gun, the volatilization of the 502 glue and the clear water is accelerated, a large amount of a-cyanoacrylate ethylene gas with larger humidity is generated, the fuming efficiency is improved, a heater is not required to be specially arranged for the 502 glue or the clear water, the components of the whole device are few, the volume is greatly reduced, the carrying is greatly facilitated, and only the heating gear and the speed gear of the hot air gun are required to be controlled during operation, the device can be operated by a hand and a single hand, and is very convenient.

For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.

Referring to fig. 1 to 2, a hand-held rapid fuming device 100 of the present invention comprises a container 1, a hot air gun 2 and a fuming head 3.

The container 1 is provided with a cavity 11 and an upper cover 12, the cavity is divided into a glue cavity 111 and a clear water cavity 112, the upper parts of the glue cavity 111 and the clear water cavity 112 are communicated with the upper cover 12 to form a mixed steam channel 13, and the mixed steam channel 13 is provided with a hot air inlet 131 and a mixed steam outlet 132. It should be noted that: although the glue chamber 111 and the clean water chamber 112 are communicated with each other to form the mixed air flow channel 13, since only a small amount 502 of glue and clean water (for example, 2-5ml) is filled, even if the container 1 is inadvertently tilted, the liquid in the glue chamber 111 and the clean water chamber 112 will not overflow, and in addition, the shape of the container 1 can be square and round, or can be other shapes, and the shape of the glue chamber 111 and the clean water chamber 112 can also be the same.

The air outlet 21 of the hot air gun 2 is connected with the hot air inlet 131 of the mixed steam flow channel 13; the size and shape of the air outlet 21 of the hot air gun 2 are matched with those of the hot air inlet 131.

And a fuming head 3 connected to the mixed steam outlet 132 of the mixed steam flow passage 13.

The hot air inlet 131 of the mixed steam flow channel 13 is located at one side of the glue cavity 111, and the mixed steam outlet 132 of the mixed steam flow channel 13 is located at one side of the clean water cavity 112.

Wherein, as a more excellent or more specific implementation of this embodiment, smoked first 3 of showing includes that a connecting pipe 31 and one smoke and show the cover 32, the inner of connecting pipe 31 is connected the mixed steam outlet 132 of mixed steam flow passageway, the outer end is connected smoked cover 32 forms the infundibulate cover body structure, covers to wait to draw on the object 200 of fingerprint, does benefit to and covers the fingerprint department of object, concentrates smoked the showing to promote smoked effect. In addition, the connection pipe 31 can be a rigid connection pipe or a flexible connection pipe, when the position or direction of the object 200 is good, the rigid connection pipe can be directly adopted, and when the position or direction of the object 200 is not good, the operation space is small, the flexible connection pipe can be adopted, so that the fuming angle can be changed without changing the angle of the container 1 (preventing the container 1 from being excessively inclined), and the fuming cover 32 can be additionally pressed on the object 200 during operation.

The hot air gun 2 is a hand-held hot air gun with a temperature adjusting function and a wind force adjusting function, and the temperature and the wind force of hot air can be controlled according to the material of an object where the fingerprint is located, so that the fuming effect is improved.

The air outlet 21 of the hot air gun 2 is detachably connected with the hot air inlet 131 of the mixed steam flow channel 13; the fuming head 3 is detachably connected with the mixed steam outlet 132 of the mixed steam flow channel 13. For example, the container 1 or the fuming head 3 can be conveniently replaced through threaded connection or buckle connection, and the efficiency is improved. If a plurality of containers 1 or the fuming heads 3 are prepared in advance for standby, when the glue 502 or the clean water in the container 1 is used up, the containers can be replaced quickly, or the fuming cover 32 with a proper size can be selected according to the shape or the size of the object.

The upper cover is detachably and hermetically connected with the cavity. Such as: a sealing ring may be provided at the edge of the upper cap 12, and when the upper cap 12 is covered on the cavity 11, the sealing ring tightly fills the gap between the upper cap 2 and the container 1, preventing the escape of the internal a-cyanoacrylate gas.

The working principle of the utility model is as follows: a small amount of glue 502 and water are respectively put into the glue cavity 111 and the clear water cavity 112 of the container 1, the upper cover 12 is covered to form a sealed space for the container 1, and the fuming cover 32 is covered on the object to be fingerprinted. The hot air gun 2 is opened to generate hot air flow to enter the container, thereby accelerating the volatilization of 502 glue and water and generating a-cyanoacrylate ethyl ester gas with higher humidity. The a-cyanoacrylate gas passes through the connecting tube 31 to the fuming cap 32, and the a-cyanoacrylate gas meets the fingerprint and reacts to form a white polymer. The portable fuming device is simple in structure and easy to operate, and police officers can easily carry the fuming device to the site and timely and rapidly extract trace material evidences such as fingerprints, palm prints, footprints and blood prints, so that the portable fuming device is beneficial to improving the case detection speed.

Although specific embodiments of the utility model have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the utility model, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the utility model, which is to be limited only by the appended claims.

Claims

1. The utility model provides a ware is smoked fast to hand-held type which characterized in that: the method comprises the following steps:

2. The hand-held rapid fuming device as recited in claim 1, further comprising: the hot air inlet of the mixed steam flow channel is positioned on one side of the glue cavity, and the mixed steam outlet of the mixed steam flow channel is positioned on one side of the clear water cavity.

3. The hand-held rapid fuming device as recited in claim 1, further comprising: the fuming head is funnel-shaped and comprises a connecting pipe and a fuming cover, the inner end of the connecting pipe is connected with the mixed steam outlet of the mixed steam flow channel, and the outer end of the connecting pipe is connected with the fuming cover.

4. The hand-held rapid fuming device as recited in claim 3, further comprising: the connecting pipe is a rigid or flexible connecting pipe.

5. The hand-held rapid fuming device as recited in claim 1, further comprising: the hot air gun is a handheld hot air gun with a temperature adjusting function and a wind force adjusting function.

6. The hand-held rapid fuming device as recited in claim 1, further comprising: the air outlet of the hot air gun is detachably connected with the hot air inlet of the mixed steam flow channel; the fuming head is detachably connected with a mixed steam outlet of the mixed steam flow channel.

7. The hand-held rapid fuming device as recited in claim 1, further comprising: the upper cover is connected with the cavity in a sealing manner.