CN214125367U - Material evidence searching instrument - Google Patents

Abstract

The utility model provides a material evidence searcher, including organism, demountable installation lamp holder on the organism, install light source control panel and the power supply unit on the organism, be provided with first connecting piece on the lamp holder, be provided with on the organism with the cooperation of first connecting piece in order to with lamp holder demountable installation the second connecting piece on the organism, be provided with first power connecting plate on the lamp holder, be provided with on the organism with light source control panel electric connection's second power connecting plate, second power connecting plate contacts and forms electric connection with first power connecting plate. The utility model provides a material evidence search appearance installs and dismantles convenient and fast, effectively improves criminal investigation work efficiency, and sets up through carrying out the modularization with the lamp holder for but same organism adaptation has the lamp holder of different wave bands, uses and convenient to carry, effective reduce cost expense.

Description

Material evidence searching instrument

Technical Field

The utility model belongs to the technical field of on-the-spot reconnaissance equipment, more specifically say, relate to a material evidence searcher.

Background

In the criminal investigation process, trace search, discovery and extraction are needed to be carried out on various criminal sites as criminal evidence. Methods used in extracting evidence of traces include destructive visualization methods including physical methods and chemical methods and nondestructive visualization methods generally referred to as optical visualization methods. Physical and chemical methods mostly cause pollution or damage to the material evidence, and foreigners make researches and applications of various fluorescence developing agents to obtain certain effects, but the limitations of the fluorescence developing agents are very obvious: firstly, the site is destroyed; secondly, part of the developing agent influences the extraction of the biological material evidence and even destroys the structure of DNA; thirdly, the human body is injured; and fourthly, the developing agent is not suitable for large-area searching. Based on the defects, the developing agent is only limited to specific trace search and inspection identification at present, so that a nondestructive optical developing method is preferably selected for material evidence extraction, and a photographic system is matched for extracting and storing potential traces.

The optical display method can effectively excite inherent fluorescence of trace physical evidence such as fingerprints, footprints, bloodstains, fibers and the like left in a crime scene by using specific light source system equipment, so that different trace physical evidence can respond under the irradiation of light with specific wavelength, the discovery and the search of the on-site trace physical evidence are facilitated, and the display capability and the acquisition rate of the on-site potential trace physical evidence are greatly improved. By utilizing the characteristics of high optical inspection sensitivity and no damage to inspection materials, the application of the prior criminal technology light source system equipment in material evidence inspection and identification is expanded from fingerprint inspection, file inspection, textile inspection to the fields of body fluid inspection, ammunition residue inspection and the like. The good material evidence photographic light source system has very important value for solving the extraction and storage of the remaining trace material evidence on the potential and difficult objects, and different light source systems can be utilized to obtain good inspection photographing effects from light distribution photography, color separation photography and polarized light photography of visible light to infrared reflection, ultraviolet reflection, infrared fluorescence and ultraviolet fluorescence photography of special photography.

The method is limited by the characteristics of a light source system and the limitation of a material evidence extraction mode, the capability and efficiency of extracting the material evidence by using an optical method are still not high enough at present, the requirements on the field investigation standardization and the scientificity of public security organ criminal technicians in actual work are becoming stricter, and the high-quality field investigation standard and the updating of inspection equipment also put higher requirements on the performance of the light source system.

In the criminal investigation process, for on-site material evidence inspection and identification work, different material evidence search, display and photographing need light sources with different wave bands, the existing material evidence searcher usually adopts a single white light source and a cut-off filter to obtain a multiband light source, the light attenuation of the light passing through the cut-off filter reaches more than 35%, the effective utilization rate is low, and the cut-off filter is easy to age due to high-heat continuous radiation of the light source, so that the cut-off accuracy of output light is reduced, the wave band of actual output light is inconsistent with a nominal value, and the discovery and inspection of the material evidence cause serious consequences of false inspection and missed inspection. In view of this, some existing material evidence search instruments adopt light sources with a single waveband, and only can emit light with one wavelength, so that the material evidence search instruments with different wavelengths need to be carried during investigation activities, and the material evidence search instruments are inconvenient to use and carry, cause great troubles to basic level personnel handling cases, and influence the criminal investigation work efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a material evidence search appearance to the use that the material evidence search appearance among the solution prior art exists and carry inconvenient, influence criminal investigation work efficiency's technical problem.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a material evidence searcher, including organism, demountable installation in lamp holder on the organism, install in on the organism and be used for controlling the light source control panel of lamp holder and be used for giving the power supply unit of light source control panel power supply, be provided with first connecting piece on the lamp holder, be provided with on the organism with first connecting piece cooperation in order with lamp holder demountable installation in second connecting piece on the organism, be provided with first power connecting plate on the lamp holder, be provided with on the organism with light source control panel electric connection's second power connecting plate, second power connecting plate with first power connecting plate contact and form electric connection.

Furthermore, the first connecting piece is a clamping block, and the second connecting piece is a clamping groove matched and clamped with the clamping block; or the second connecting piece is a clamping block, and the first connecting piece is a clamping groove matched and clamped with the clamping block.

Further, the lamp holder includes the lamp body, install in lamp stand in the lamp body and install in lamp plate on the lamp stand, first power connection board with lamp plate electric connection.

Furthermore, the lamp holder further comprises a radiator which is arranged on the lamp holder and used for radiating the lamp panel, and/or a radiating fan which is arranged on the lamp holder and used for radiating the lamp panel.

Further, the lamp holder is further including set up in the lamp cup group or the battery of lens of lamp plate front side and set up in the grating of lamp cup group or battery of lens front side.

Further, the lamp holder still include with the lamp body can be dismantled the connection and be located the light source filter lens of lamp plate front side.

Further, the machine body comprises a shell, a power supply mounting seat arranged in the shell, a base arranged on the power supply mounting seat and a first fixing ring matched with the base to fix the second power supply connecting plate on the base, and the light source control panel is arranged on the power supply mounting seat.

Further, a handle is arranged on the shell, and a plurality of functional buttons are arranged on the handle.

Further, the material evidence search instrument further comprises:

the camera device comprises a lens for collecting images, a lens subplate electrically connected with the lens and a camera main board electrically connected with the lens subplate for receiving the images collected by the lens and transmitted by the lens subplate; and the number of the first and second groups,

and the display screen is electrically connected with the camera shooting main board and is used for displaying the image collected by the lens.

Furthermore, the camera device further comprises a first lens filter, and the first lens filter is mounted on the first fixing ring and covers the lens.

The utility model provides a material evidence search appearance's beneficial effect lies in: compared with the prior art, the utility model discloses material evidence searcher, through setting up first connecting piece on the lamp holder, set up the second connecting piece on the organism, and the cooperation sets up first power connecting plate on the lamp holder, set up second power connecting plate on the organism, cooperation through first connecting piece and second connecting piece realizes dismantling of lamp holder and organism and is connected, contact and form electric connection through first power connecting plate and second power connecting plate, thereby realize that the electrical property between lamp holder and the organism switches on, installation and dismantlement convenient and fast, effectively improve criminal investigation work efficiency, and through carrying out the modularization setting with the lamp holder, make same organism adaptation have the lamp holder of different wave bands, use and convenient to carry, effective reduce cost expense.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic perspective view of a material evidence searching instrument according to a first embodiment of the present invention;

fig. 2 is an exploded schematic view of a material evidence search instrument according to a first embodiment of the present invention;

fig. 3 is a schematic perspective view of a lamp cap according to a first embodiment of the present invention; (ii) a

FIG. 4 is a schematic view of the structure of FIG. 3 in another perspective;

FIG. 5 is a schematic diagram of the exploded structure of FIG. 3;

FIG. 6 is a partial schematic view of the lamphead of FIG. 3;

fig. 7 is a schematic perspective view of a machine body according to a first embodiment of the present invention;

fig. 8 is an exploded view of the machine body according to the first embodiment of the present invention;

fig. 9 is a schematic perspective view of a housing according to a first embodiment of the present invention;

FIG. 10 is an enlarged schematic view of FIG. 9 at A;

fig. 11 is a schematic partial structural view according to a first embodiment of the present invention;

fig. 12 is a schematic perspective view of a material evidence searching instrument according to a second embodiment of the present invention;

fig. 13 is a schematic perspective view of a machine body according to a second embodiment of the present invention;

fig. 14 is an exploded view of the machine body according to the second embodiment of the present invention;

fig. 15 is a schematic partial structural view according to a second embodiment of the present invention;

fig. 16 is a schematic cross-sectional view of fig. 15.

Wherein, in the figures, the respective reference numerals:

10-body; 11-a second connection; 111-a guide slot; 112-concave position; 12-a second power connection board; 121-a third via; 13-a housing; 131-a first opening; 132-a back cover plate; 1321-connecting hole; 133-a second opening; 134-side cover plate; 14-a power supply mount; 15-a base; 151-step; 152-a base; 16-a first retainer ring; 17-a handle; 171-functional buttons; 172-strap buckle holes; 20-a lamp cap; 21-a first connector; 211-protrusions; 22-a first power connection board; 221-a second retainer ring; 222-a first via; 23-a lamp envelope; 24-a lamp holder; 241-a fixed seat; 242 — a fixed plate; 25-a lamp panel; 26-a heat sink; 27-a lens group; 28-a grating; 29-light source filter lens; 291-second lens filter; 292-a second via; 30-a light source control panel; 40-a power supply device; 401-perforating; 41-a first battery holder; 42-a second battery holder; 50-a display screen; 61-lens; 62-a camera main board; 63-first lens filter.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example 1 (auxiliary machine hereinafter referred to as "physical evidence search Instrument" in example 1)

Referring to fig. 1, fig. 2, fig. 4 and fig. 8, a material evidence searching instrument according to a first embodiment of the present invention will now be described. The material evidence searching instrument of the first embodiment of the present invention includes a machine body 10, a lamp head 20, a light source control panel 30 and a power supply device 40. The lamp cap 20 is detachably mounted to the body 10. The light source control board 30 is mounted on the body 10 and controls the on and off of the lamp head 20. The power supply device 40 is used to supply power to the light source control board 30. As shown in fig. 4, the lamp head 20 is provided with a first connecting member 21, as shown in fig. 7, the machine body 10 is provided with a second connecting member 11, and the lamp head 20 is detachably mounted on the machine body 10 by the first connecting member 21 and the second connecting member 11. As shown in fig. 4, the first power connection board 22 is disposed on the lamp cap 20, as shown in fig. 7 and 8, the second power connection board 12 electrically connected to the light source control board 30 is disposed on the housing 10, and when the lamp cap 20 is mounted on the housing 10, the second power connection board 12 just contacts with the first power connection board 22 to form an electrical connection, so that an electrical conduction is formed, power supply to the lamp cap 20 is realized, connection through a flat cable is not required, and assembly is simpler.

When lamp holder 20 is required to be installed, lamp holder 20 can be detachably installed on machine body 10 only by matching first connecting piece 21 with second connecting piece 11, when lamp holder 20 is required to be replaced, lamp holder 20 and machine body 10 can be separated only by separating first connecting piece 21 from second connecting piece 11, convenience and rapidness in installation and disassembly are achieved, criminal investigation work efficiency is effectively improved, lamp holder 20 is modularly arranged, the lamp holder 20 with different wave bands can be matched with the same machine body 10, and the multifunctional portable lamp is convenient to use and carry and effectively reduces cost and expense.

The utility model provides a material evidence search appearance, compared with the prior art, through set up first connecting piece 21 on lamp holder 20, set up second connecting piece 11 on organism 10, and the cooperation sets up first power connecting plate 22 on lamp holder 20, set up second power connecting plate 12 on organism 10, cooperation through first connecting piece 21 and second connecting piece 11 realizes lamp holder 20 and organism 10 can dismantle and be connected, contact and form electric connection through first power connecting plate 22 and second power connecting plate 12, thereby realize that the electrical property between lamp holder 20 and the organism 10 switches on, its installation and dismantlement convenient and fast, effectively improve criminal investigation work efficiency, and through carrying out the modularization setting with lamp holder 20, make same organism 10 adaptation have the lamp holder 20 of different wave bands, use and convenient to carry, effective reduce cost expense.

Further, please refer to fig. 4, fig. 9 and fig. 10 together, as the utility model discloses the material evidence search instrument that the first embodiment provides, first connecting piece 21 is the fixture block, and second connecting piece 11 is the draw-in groove with fixture block cooperation joint, and the fixture block sets up on lamp holder 20 promptly, and the draw-in groove sets up on organism 10, through the cooperation of fixture block and draw-in groove to realize lamp holder 20 and organism 10 can dismantle being connected, its equipment is very convenient. And the fixture block can transfer the heat emitted by the lamp cap 20 to the machine body 10, so that the lamp cap 20 can be rapidly cooled, and the service life is effectively prolonged. It should be noted that, the arrangement manner of the clamping block and the clamping groove is not limited to this, for example, in one preferred embodiment of the present invention, the second connecting member 11 can be a clamping block, the first connecting member 21 can be a clamping groove engaged with the clamping block, that is, the clamping block is disposed on the machine body 10, and the clamping groove is disposed on the lamp head 20. For example, in another preferred embodiment of the present invention, the first connecting member 21 and the second connecting member 11 can be configured to be in a threaded connection, that is, the first connecting member 21 is an internal thread disposed on the lamp cap 20, and the second connecting member 11 is an external thread disposed on the machine body 10 and screwed with the internal thread, or the first connecting member 21 is an external thread disposed on the lamp cap 20, and the second connecting member 11 is an internal thread disposed on the machine body 10 and screwed with the external thread. The external thread and the internal thread are matched, so that the lamp cap 20 can be detachably connected with the machine body 10.

Further, please refer to fig. 9 and 10 together, as the material evidence searching instrument provided by the first embodiment of the present invention, the machine body 10 may further be provided with a guide groove 111 communicated with the slot and used for guiding the clamping block to slide into the slot. When the lamp head 20 needs to be installed on the machine body 10, the fixture block can be aligned to the guide groove 111 at this time, and then the lamp head 20 is rotated, and the fixture block can slide into the clamp groove along the guide groove 111 at this time, so that the lamp head 20 and the machine body 10 are fixed. When the lamp head 20 needs to be disassembled, only the lamp head 20 needs to be rotated in the opposite direction at this time, so that the fixture blocks on the lamp head 20 slide into the guide grooves 111 from the clamping grooves, and the separation between the lamp head 20 and the machine body 10 can be realized.

Further, please refer to fig. 4, fig. 9 and fig. 10 together, as the physical evidence searching instrument provided by the first embodiment of the present invention, the fixture block may further be provided with a protrusion 211, the clamping groove is provided with a concave position 112 matched with the protrusion 211, and through the matching of the protrusion 211 and the concave position 112, the connection stability of the fixture block and the clamping groove can be increased, and the reliability of the connection between the lamp holder 20 and the machine body 10 can be improved. Alternatively, in other embodiments of the present invention, the protrusion 211 may be disposed on the slot, and the recess 112 may be disposed on the fixture block.

Further, please refer to fig. 3 to fig. 6 together, as the utility model discloses material evidence searcher that first embodiment provides, lamp holder 20 includes lamp body 23, installs lamp stand 24 in lamp body 23 and installs the lamp plate 25 on lamp stand 24, and first power connection board 22 and lamp plate 25 electric connection realize supplying power for lamp plate 25 through the electric connection of first power connection board 22 and lamp plate 25. Preferably, the lamp holder 24 includes a fixing base 241 and a fixing plate 242 connected and fixed to the fixing base 241, and the fixing base 241 and the fixing plate 242 may be connected integrally or separately, and may be connected and fixed by screws, for example. Specifically, the lamp panel 25 is mounted on the fixing plate 242.

Further, referring to fig. 3 to fig. 6, as the material evidence searching instrument provided by the first embodiment of the present invention, the first power connection board 22 is mounted on the fixing base 241 through the second fixing ring 221. The first power connection plate 22 is provided with a first through hole 222, and the second fixing ring 221 passes through the first through hole 222 and is in threaded connection with the fixing base 241, so that the first power connection plate 22 is fixed on the fixing base 241.

Further, please refer to fig. 5 to fig. 6 together, as the material evidence searcher provided by the first embodiment of the present invention, the lamp holder 20 further includes a heat sink 26 installed on the lamp holder 24, and the heat dissipation of the lamp panel 25 can be accelerated by the arrangement of the heat sink 26, so as to improve the heat dissipation effect. It should be noted that, the way of increasing the heat dissipation of the lamp panel 25 is not limited to this, for example, in other preferred embodiments of the present invention, a heat dissipation fan (not shown) may be separately disposed on the lamp base 24, or the heat sink 26 and the heat dissipation fan may be disposed on the lamp base 24 at the same time, which may further increase the heat dissipation effect. The heat dissipation fan may be electrically connected to the first power connection board 22 through a wire.

Further, please refer to fig. 5 to fig. 6 together, as the physical evidence searcher provided by the first embodiment of the present invention, the lamp holder 20 further includes a lens set 27 disposed on the front side of the lamp panel 25, and the light output is purer by disposing the lens set 27 on the front side of the lamp panel 25. In the criminal investigation process, a special light source such as ultraviolet light is sometimes needed for investigation, and in order to avoid the lens set 27 absorbing ultraviolet light, the lens set 27 can be replaced by a lamp cup set (not shown) to realize light emission. Preferably, in order to make the formed light spot more uniform, a grating 28 may be disposed on the front side of the lamp cup group or the lens group 27.

Further, referring to fig. 5 to 6, as the material evidence searching instrument provided by the first embodiment of the present invention, the lamp head 20 further includes a light source filter 29 detachably connected to the lamp housing 23 and located in front of the lamp panel 25. By providing the light source filter 29, stray light can be filtered out, so that the light source is purer. The light source filter lens 29 is detachably connected with the lamp housing 23, so that the light source filter lens 29 can be conveniently detached and installed, and preferably, the light source filter lens 29 is connected with the lamp housing 23 through threads.

Further, as the utility model provides a material evidence search appearance is provided with a plurality of lamp pearls on the lamp plate 25, for example can be for T6 lamp pearl, through the setting of the high-power lamp pearl of the narrow spectrum of T6, its spectrum wave band is narrow, optical purity is high, light source intensity is high, can avoid because the intensity of light is not enough to cause the material of examining of surface unevenness can 'T eliminate unsmooth surface's interference. Preferably, the lamp beads of different lamp holders 20 can be set to different wavelengths to meet the requirement that special material evidence needs a light source with a specific wave band to display. For example, in general, the commonly used light source is five groups of ultraviolet light, purple light, blue light, green light and white light, that is, five groups of lamp caps 20 with different wave bands (the lamp bead wavelengths are respectively ultraviolet light 365-. When the wavelengths of the lamp beads are respectively 370nm for ultraviolet 365-.

Further, referring to fig. 3 and 5, as the material evidence searching instrument provided by the first embodiment of the present invention, the lamp head 20 further includes a second lens filter 291, and one end of the second lens filter 291 passes through the light source filter 29 and is connected to the lamp holder 24. When a trace search using a lens described below is required, the second lens filter 291 may be installed on the lamp base 24, and when light passes through the second lens filter 291, fluorescence that is not observed by a human eye may be seen. Preferably, the second lens filter 291 may be a red cut-off filter, an orange cut-off filter, or a yellow cut-off filter, and may be selected according to actual needs. Preferably, the light source filter 29 is provided with a second through hole 292, and the second lens filter 291 passes through the second through hole 292 and is screwed with the lamp holder 24, so that the second lens filter 291 is detachably coupled.

Further, please refer to fig. 5 to fig. 6 together, as the utility model discloses the material evidence searching instrument that the first embodiment provides sets up the screw hole on grating 28, battery 27, lamp plate 25, fixed plate 242 and the radiator 26 respectively, and the screw (not shown) passes the screw hole on grating 28, battery 27, lamp plate 25, the fixed plate 242 in proper order and is connected fixedly with the screw hole on the radiator 26 to make it form a whole, its installation is very convenient.

The process of mounting the base 20 of the present embodiment is as follows:

firstly, screws sequentially penetrate through the grating 28, the lens group 27, the lamp panel 25 and the fixing plate 242 and are connected with threaded holes in the radiator 26, so that the grating, the lens group 27, the lamp panel 25 and the fixing plate are integrated;

then, the heat dissipation fan is mounted on the fixing base 241, and then the second fixing ring 221 passes through the first through hole 222 and is in threaded connection with the fixing base 241, so that the first power connection board 22 is fixed on the fixing base 241;

then, the mounted whole is put into the lamp housing 23 and is screwed with the lamp housing 23 through the light source filter lens 29, so as to be fixed in the lamp housing 23;

finally, the second lens filter 291 is inserted through the second through hole 292 and screwed with the lamp holder 24, thereby completing the assembly of the entire lamp cap 20.

Further, referring to fig. 7, 8 and 11, as the material evidence searching instrument provided by the first embodiment of the present invention, the machine body 10 includes a housing 13 and a power mounting seat 14 disposed in the housing 13, and the light source control board 30 and the second power connecting board 12 are mounted on the power mounting seat 14. The light source control board 30 and the second power connection board 12 are fixed in the housing 13 by the power mount 14. Specifically, the body 10 further includes a base 15 mounted on the power mounting base 14, and a first fixing ring 16 cooperating with the base 15 to fix the second power connecting plate 12 on the base 15. The base 15 is matched with the first fixing ring 16 to mount the second power supply connecting plate 12 on the power supply mounting seat 14. Preferably, the second power connection board 12 is provided with a third through hole 121, the base 15 is provided with a step 151, the second power connection board 12 abuts against the step 151, and the first fixing ring 16 passes through the third through hole 121 and is fixed to the base 15 in a threaded connection manner. Further, the base 15 is mounted on the power supply mounting seat 14 through the base 152, the base 152 is mounted on the power supply mounting seat 14, and the base 15 can be fixedly connected with the base 152 through a threaded connection. The shell 13 can be made of aluminum alloy materials, so that the heat dissipation effect can be improved, and the service life can be prolonged.

Further, referring to fig. 7, 8 and 11, as the material evidence searching instrument provided by the first embodiment of the present invention, the rear end of the housing 13 has a first opening 131, and the rear end of the housing 13 is detachably mounted with a rear cover plate 132 for covering the first opening 131. This power supply unit 40 is for installing the group battery in shell 13, the one end joint of group battery is on a first battery fixing base 41, the other end joint of group battery is on a second battery fixing base 42, all be provided with perforation 401 on first battery fixing base 41 and the second battery fixing base 42, be provided with connecting hole 1321 on the back shroud 132, a connecting piece (not shown) passes perforation 401 on first battery fixing base 41 and perforation 401 on the second battery fixing base 42 in proper order after, and be connected fixedly with connecting hole 1321, thereby be fixed in on back shroud 132 with the group battery, prevent that the group battery from taking place to remove in shell 13. Preferably, the connecting member may be a long screw, and the connecting hole 1321 may be a threaded hole having threads. The battery pack can adopt a 30Ah high-capacity rechargeable lithium battery, and the endurance time is prolonged. It should be noted that the power supply device 40 may also be configured as an external power supply, and the machine body 10 is electrically connected to the external power supply by providing a plug.

Further, as the utility model discloses the material evidence search appearance that the first embodiment provided is provided with the interface that charges on the back shroud 132, charges for the group battery through the interface that charges. The charging interface may be a DC charging interface, and a charging indicator and a use status light may also be disposed on the rear cover plate 132. Further, a MIC (microphone) and a speaker are disposed on the rear cover 132.

Further, referring to fig. 7 and 8, as a material evidence searching instrument provided by the first embodiment of the present invention, a handle 17 is disposed on the housing 13, and a plurality of functional buttons 171 are disposed on the handle 17. By providing the handle 17 and by providing the functional button 171 on the handle 17, portability and one-handed operation are facilitated. Preferably, the handle 17 is disposed on the top surface of the housing 13, and the functional button 171 includes a first control button for controlling the switch of the heat dissipation fan and a second control button for controlling the switch of the lamp panel 25. The first control button and the second control button can be arranged from front to back in sequence.

Further, please refer to fig. 7 and 8 together, as the material evidence searching instrument provided by the first embodiment of the present invention, the head and the tail ends of the handle 17 are provided with the shoulder strap fastening holes 172, so that the shoulder strap can be inserted into the shoulder strap, which is convenient for the user to carry about.

Further, as the utility model discloses material evidence search appearance that the first embodiment provided, shell 13 bottom can set up fast fishplate bar (in the figure) for connect the A-frame, make things convenient for fixed equipment to shoot and collect evidence. For example, when the light splitting photography is used, the main machine can be fixed on a tripod, and the auxiliary machine can be used for irradiating light traces at a small angle, so that the dark night field photography method is realized. Three-color cut-off small filter frame can be installed in front of the high-definition lens of the host machine, so that the color separation and the illumination are equal. The main machine and the auxiliary machine can be switched with the 5 groups of multiband light source lamp holders 20 at will, so that the requirement that special material evidence needs a specific waveband light source to display is met.

Example 2 (host for the following short "Material evidence Searcher" in example 2)

As shown in fig. 12 to 16, the specific structure of the material evidence search instrument in the second embodiment of the present invention is substantially the same as the specific structure of the material evidence search instrument in the first embodiment of the present invention, and the difference is:

in this embodiment, the physical evidence searching instrument further comprises a camera device and a display screen 50, wherein the camera device comprises a lens 61 for collecting images, a lens sub-board (not shown) electrically connected with the lens 61, and a camera main board 62 electrically connected with the lens sub-board for receiving the images collected by the lens transmitted by the lens sub-board. The display screen 50 is electrically connected to the camera main board 62 and is used for displaying the image captured by the lens 61. Specifically, the lens sub-board may be connected to the main camera board 62 through a flat cable, and the display screen 50 may be connected to the main camera board 62 through a flat cable. Through combining camera device and light source as an organic whole, realize utilizing lamp holder 20 to search for, utilize camera device to realize collecting evidence, realize that search and collection evidence combine integratively, can satisfy various grading demands.

Further, as the utility model discloses the material evidence search appearance that the second embodiment provided, this camera lens 61 are high definition distortionless camera lens 61, and display screen 50 can be for 360 rotatory 5.0 cun high definition full touch display screen 50, and high definition distortionless camera lens 61 is far higher than people's eye sensitivity to cooperation high definition display screen 50, can more audio-visually show the vestige of discovery on display screen 50, help carrying out visual operation to the scene vestige. And the display screen can open the display screen 50 and can 360 rotate to adjust the display screen 50 to watch the best angle by setting up 360 rotatory flip, and when not using equipment, can close flip rotatory display screen 50, avoided the damage to display screen 50 when reducing the accommodation space.

Further, as shown in fig. 14 and 16, as the material evidence search instrument according to the second embodiment of the present invention, a lens sub-board and a camera main board 62 are mounted on the power supply mounting base 14, and the lens 61 is mounted on the base 152. A second opening 133 is formed at a side end of the housing 13, a side cover 134 is detachably mounted on the housing 13, and the display screen 50 is mounted on the side cover 134.

Further, as shown in fig. 14 and 16, as the material evidence searching instrument provided by the second embodiment of the present invention, the image capturing device further includes a first lens filter 63, and the first lens filter 63 is mounted on the first fixing ring 16 and covers the lens 61. The first lens filter 63 can be set as a red cut-off filter, an orange cut-off filter and a yellow cut-off filter, when the body 10 is only used for the function of evidence obtaining, the lamp holder 20 can be omitted, and the first lens filter 63 can be installed at the moment, so that the light distribution photography, the color separation photography, the ultraviolet reflection and the ultraviolet fluorescence illumination of visible light are equal, and the good examination photographing effect can be obtained by matching with a light source system of the auxiliary machine.

Further, as the utility model discloses material evidence search appearance that the second embodiment provided is provided with in the shell 13 and is used for carrying out wireless communication connection's wireless communication module with terminal equipment (cell-phone, computer or panel computer etc.). In this embodiment, the wireless communication module is a Wifi module, and in other implementations, the wireless communication module may also be a 4g module, a 5g module, or a bluetooth module. When wireless communication module is the Wifi module, can pass through the APP with terminal equipment after opening the hot spot and be connected, the real-time picture of the acceptable host computer of terminal equipment in 15 meters within range realizes the real-time sharing of data, can realize alone search, the effect of many people's investigation. Certainly, the material evidence searching instrument and the terminal equipment can also be in communication connection through the wired communication module.

Further, as the utility model discloses material evidence search appearance that the second embodiment provided still is provided with USB data transmission interface on the back shroud 132, can connect the computer through USB data transmission interface, uploads the data of storage in the computer.

Further, as shown in fig. 13, as the material evidence search instrument provided in the second embodiment of the present invention, the functional buttons 171 may further include a third control button and a fourth control button. The third control button can be used for controlling starting or photographing, and the fourth control button is used for controlling camera shooting and WIFI hot spots.

The utility model discloses a host computer and auxiliary engine exclusive use also can combine the use, and above-mentioned five groups multiband lamp holders 20 can switch the use wantonly on host computer and auxiliary engine. When the lamp holder 20 is installed on the auxiliary machine, the auxiliary machine can be used as a searching light source, and the auxiliary machine is worn with color filtering glasses to perform initial searching of potential traces in criminal sites; the system can also be used as a light source for light distribution photography, color separation photography, ultraviolet reflection and ultraviolet fluorescence photography in criminal photography and is matched with a evidence obtaining system in a host machine for shooting. When the lamp holder 20 is installed on the host machine, the host machine can be used as a search light source, and can also be used for photographing and shooting the fluorescent traces on the criminal site by coaxial light to record the whole site search process. The purpose of the auxiliary machine can be matched with the main machine to carry out criminal photographing and camera shooting to provide a necessary multiband light source (for example, dust footprints can be shot, the auxiliary machine can be matched with white light to glancing and irradiate the bottom surface, and the lens 61 of the main machine vertically shoots the bottom surface so as to show the dust footprints); secondly, when entering a criminal site, a searcher can mount the lamp holder 20 on the auxiliary machine by holding the auxiliary machine and wear a pair of stop glasses for initial search; the auxiliary machine is provided with a 30Ah power supply, so that the primary search can be met, and the service time of the main machine can be prolonged; finally, the lamp holder 20 has high power, so that the housing 13 is heated due to the large heat generation capacity during use, and the heat generation of the housing 13 can be reduced and the heat dissipation effect can be improved by alternately using the main machine and the auxiliary machine.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. Material evidence search appearance, its characterized in that: the novel LED lamp comprises a machine body, a lamp holder, a power supply device and a lamp holder, wherein the lamp holder is detachably mounted on the machine body, the lamp holder is mounted on the machine body and used for controlling a light source control panel of the lamp holder and the power supply device is used for supplying power to the light source control panel, a first connecting piece is arranged on the lamp holder, the machine body is provided with a second connecting piece matched with the first connecting piece and detachably mounted on the machine body, a first power supply connecting plate is arranged on the lamp holder, a second power supply connecting plate electrically connected with the light source control panel is arranged on the machine body, and the second power supply connecting plate is in contact with the first power supply connecting plate and forms electric connection.

2. The physical evidence searching instrument of claim 1, wherein: the first connecting piece is a clamping block, and the second connecting piece is a clamping groove matched and clamped with the clamping block; or the second connecting piece is a clamping block, and the first connecting piece is a clamping groove matched and clamped with the clamping block.

3. The physical evidence searching instrument of claim 1, wherein: the lamp holder includes the lamp body, install in lamp stand in the lamp body and install in lamp plate on the lamp stand, first power connecting plate with lamp plate electric connection.

4. The physical evidence searching instrument of claim 3, wherein: the lamp holder further comprises a radiator which is installed on the lamp holder and used for radiating the lamp panel.

5. The physical evidence searching instrument of claim 3, wherein: the lamp holder is still including set up in the lamp cup group or the battery of lens of lamp plate front side and set up in the grating of lamp cup group or battery of lens front side.

6. The physical evidence searching instrument of claim 3, wherein: the lamp holder still include with the lamp body can be dismantled the connection and be located the light source filter lens of lamp plate front side.

7. The physical evidence searching instrument of claim 1, wherein: the machine body comprises a shell, a power supply mounting seat arranged in the shell, a base arranged on the power supply mounting seat and a first fixing ring matched with the base to fix the second power supply connecting plate on the base, and the light source control panel is arranged on the power supply mounting seat.

8. The physical evidence searching instrument of claim 7, wherein: the shell is provided with a handle, and the handle is provided with a plurality of functional buttons.

9. The physical evidence searching instrument of claim 7, wherein: the material evidence searching instrument further comprises:

the camera device comprises a lens for collecting images, a lens subplate electrically connected with the lens and a camera main board electrically connected with the lens subplate for receiving the images collected by the lens and transmitted by the lens subplate; and the number of the first and second groups,

and the display screen is electrically connected with the camera shooting main board and is used for displaying the image collected by the lens.

10. The physical evidence searching instrument of claim 9, wherein: the camera device further comprises a first lens filter, and the first lens filter is mounted on the first fixing ring and covers the lens.

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