On-site copying box for footprint extraction and electrostatic adsorption footprint extraction in gypsum molding

Abstract

The field copying box comprises a box body without a bottom face, a lifting table assembly is arranged in the box body, a round hole is formed in the top face of the box body in a penetrating mode, parallel light sources are arranged on the inner walls of the two sides of the box body and located on the lower middle portions respectively, and the parallel light sources are connected with the lifting table assembly. A battery box and a light source controller which are connected with the parallel light source are arranged on the inner wall of one side of the box body; a light source switch, an electric quantity display and a battery charging port which are connected with the light source controller are further arranged on one side of the top of the box body; through the arrangement of the box body and the parallel light source located in the box body, the interference of other light rays can be eliminated; by arranging the lifting table and the plane clamp on the upper portion of the lifting table, gypsum molding and electrostatic adsorption films can be clamped conveniently, meanwhile, the lifting table can adjust the gypsum molding and electrostatic adsorption films to the proper light source position, a camera is used for photographing through a round hole in the top of the box, and the device is simple and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of trace extraction devices, in particular to an on-site copy box used for extracting footprints through plaster molding and extracting footprints through electrostatic adsorption. Background Art

[0002] During the on-site investigation, there will be three-dimensional footprints or two-dimensional dust footprints left at the scene, which requires the use of plaster modeling extraction method to extract three-dimensional footprints, and the use of electrostatic adsorption method to extract two-dimensional dust footprints; but both the three-dimensional footprints extracted by plaster modeling and the two-dimensional dust footprints extracted by electrostatic adsorption are extremely fragile on-site evidence, so they need to be photographed and fixed immediately during the on-site investigation. However, due to the limitations of the on-site environment, the three-dimensional effect of plaster modeling footprints and the two-dimensional effect of electrostatic adsorption footprints require special parallel light and dark environment to eliminate interference from other light. Therefore, making a plaster modeling footprint extraction and electrostatic adsorption footprint extraction on-site copy box to meet the requirements of on-site evidence photography is an urgent problem that technicians in related fields need to solve. Utility Model Content

[0003] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a box for on-site copying of footprints extracted by plaster molding and footprints extracted by electrostatic adsorption, comprising a box without a bottom surface, a lifting platform assembly is arranged in the box, a circular hole is penetrated on the top surface of the box, parallel light sources are respectively arranged on the inner walls on both sides of the box at the position located at the lower part thereof, a battery box and a light source controller connected to the parallel light source are arranged on the inner wall of one side of the box, and a light source switch, a power display and a battery charging port connected to the light source controller are also arranged on one side of the top of the box; the lifting platform assembly comprises a lifting base and a lifting table top arranged relatively, a first scissor-type connecting rod and a second scissor-type connecting rod are arranged on both sides of the lifting base and the lifting table top from top to bottom, the bottom of the first scissor-type connecting rod and the top of the second scissor-type connecting rod are hinged by an intermediate connecting rod, a threaded adjustment shaft is penetrated on the intermediate connecting rod, threads matching with the intermediate connecting rod are respectively arranged at both ends of the threaded adjustment shaft, and the threads at both ends of the threaded adjustment shaft are opposite, and an adjustment handle is connected to one end of the threaded adjustment shaft.

[0004] Compared with the prior art, the advantages of the utility model are as follows: the utility model can eliminate the interference of other light by providing a box body and a parallel light source located inside the box body; by providing a lifting platform and a flat clamp on the upper part thereof, it is convenient to clamp the plaster mold and the electrostatic adsorption film; at the same time, the lifting platform can be adjusted to a suitable light source position, and then a camera can be used to take pictures through the circular hole on the top of the box body, which is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Figure 1The utility model is a structural schematic diagram of a field copy box used for extracting footprints by plaster moulding and extracting footprints by electrostatic adsorption.

[0006] Figure 2 The utility model is a schematic diagram of the internal structure of a field copy box used for extracting footprints by plaster moulding and extracting footprints by electrostatic adsorption.

[0007] Figure 3 The utility model is a schematic diagram of the internal structure of a box in a field copy box used for extracting footprints by plaster molding and extracting footprints by electrostatic adsorption.

[0008] Figure 4 The utility model is a structural schematic diagram of a lifting platform component in a field copy box used for extracting footprints by plaster molding and extracting footprints by electrostatic adsorption.

[0009] Figure 5 The utility model is a schematic diagram of the side structure of a lifting platform component in a field copy box for extracting footprints by plaster molding and extracting footprints by electrostatic adsorption. DETAILED DESCRIPTION

[0010] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0011] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0012] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0013] In the description of the embodiments of the present invention, "multiple" means at least 2.

[0014] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0015] Example:

[0016] A field copy box for extracting footprints by plaster molding and extracting footprints by electrostatic adsorption, comprising a box body 1 without a bottom surface, a lifting platform assembly 2 is arranged in the box body 1, a circular hole 3 is penetrated through the top surface of the box body 1, and a camera lens docking ring 4 is also arranged at the circular hole 3; parallel light sources 5 are respectively arranged on the inner walls of both sides of the box body 1 at the lower position thereof, a battery box 6 and a light source controller connected to the parallel light source 5 are arranged on the inner wall of one side of the box body 1, and a light source switch 7 connected to the light source controller, a power display 8 and a battery charging port 9 are also arranged on one side of the top of the box body 1.

[0017] The lifting platform assembly 2 includes a lifting base 201 and a lifting platform 202 which are arranged relatively to each other. A first scissor-type link 203 and a second scissor-type link 204 are arranged on both sides of the lifting base 201 and the lifting platform 202 from top to bottom. The bottom of the first scissor-type link 203 and the top of the second scissor-type link 204 are hinged by an intermediate link 205. A threaded adjustment shaft 207 is penetrated through the intermediate link 205. Both ends of the threaded adjustment shaft 207 are respectively provided with threads that cooperate with the intermediate link 205, and the threads at both ends of the threaded adjustment shaft 207 are opposite. One end of the threaded adjustment shaft 207 is connected to an adjustment handle 208.

[0018] The upper part of the lifting base 201 and the lower part of the lifting platform 202 are respectively provided with a first mounting plate 209 and a second mounting plate 210, one side of the first mounting plate 209 and the second mounting plate 210 are respectively provided with a slideway 1 211 and a slideway 212, one end of the first scissor-type link 203 is slidably connected to the slideway 212, and the other end is hinged to the second mounting plate 210, one end of the second scissor-type link 204 is slidably connected to the slideway 1 211, and the other end is hinged to the first mounting plate 209; the threaded adjustment shaft 207 is provided with an adjustment handle 208, one end of which protrudes out of the side wall of the box body 1, and the side wall of the box body 1 is provided with a vertical through groove 10 corresponding thereto.

[0019] Plane clamps 11 are respectively arranged at the four corners of the top of the lifting platform 202 , and the planar clamps 11 include elastic clips 1101 . The elastic clips 1101 are tilted, one end of which contacts the upper surface of the lifting platform 202 , and the other end is rotatably connected to the clip fixing shaft 1102 .

[0020] In the specific implementation, the material of the box should be a light, hard, and opaque material. The opaque property can also be solved by sticking an opaque film. When taking pictures, first place the plaster mold to extract the footprints on the lifting platform (similarly, when taking pictures of the footprints extracted by electrostatic adsorption, place the electrostatic adsorption film flat on the lifting platform and press it with a flat clip to ensure the flatness of the electrostatic adsorption film). The lifting platform is placed on a horizontal ground, and then the box is covered on the lifting platform, the camera lens is connected to the camera ring on the top of the box, the parallel light source switch is turned on, and the lifting platform is adjusted to the parallel light source irradiation position. After adjusting the camera, the shooting can be successful.

[0021] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A field copy box for extracting footprints by plaster molding and electrostatic adsorption, characterized in that: It comprises a box without a bottom surface, in which a lifting platform assembly is arranged, a circular hole is penetrated through the top surface of the box, parallel light sources are respectively arranged at the lower positions of the inner walls on both sides of the box, a battery box and a light source controller connected to the parallel light sources are arranged on the inner wall of one side of the box, and a light source switch, a power display and a battery charging port connected to the light source controller are also arranged on one side of the top of the box.

2. The on-site copying box for extracting footprints by plaster molding and electrostatic adsorption according to claim 1 is characterized in that: The lifting platform assembly includes a lifting base and a lifting platform surface which are relatively arranged. A first scissor-type link and a second scissor-type link are arranged on both sides of the lifting base and the lifting platform surface from top to bottom. The bottom of the first scissor-type link and the top of the second scissor-type link are hinged by an intermediate link. A threaded adjustment shaft is penetrated through the intermediate link. Both ends of the threaded adjustment shaft are respectively provided with threads which cooperate with the intermediate link and the threads at both ends of the threaded adjustment shaft are opposite. One end of the threaded adjustment shaft is connected to an adjustment handle.

3. The on-site copying box for extracting footprints by plaster molding and electrostatic adsorption according to claim 2 is characterized in that: The upper part of the lifting base and the lower part of the lifting platform are respectively provided with a first mounting plate and a second mounting plate, one side of the first mounting plate and the second mounting plate are respectively provided with a slideway 1 and a slideway 2, one end of the first scissor-type connecting rod is slidably connected to the slideway 2, and the other end is hinged to the second mounting plate, one end of the second scissor-type connecting rod is slidably connected to the slideway 1, and the other end is hinged to the first mounting plate.

4. The on-site copying box for extracting footprints by plaster molding and electrostatic adsorption according to claim 2 is characterized in that: One end of the threaded adjustment shaft provided with an adjustment handle extends out of the side wall of the box body, and a vertical through groove corresponding thereto is provided on the side wall of the box body.

5. The on-site copying box for extracting footprints by plaster molding and electrostatic adsorption according to claim 3 is characterized in that: Plane clamps are respectively arranged at the four corners of the top of the lifting platform, and the planar clamps include elastic clips. The elastic clips are arranged obliquely, one end of which contacts the upper surface of the lifting platform, and the other end is rotatably connected to the clip fixing shaft.

6. The on-site copying box for extracting footprints by plaster molding and electrostatic adsorption according to claim 1 is characterized in that: A camera lens docking ring is also provided at the circular hole.

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