Handwriting experiment sample extraction tool

Abstract

The utility model discloses a handwriting experiment sample extraction tool which comprises a first containing area and a second containing area, the first containing area is divided into a first compartment and a second compartment which are independent, and a base material storage cylinder in the first compartment is used for containing at least one base material to be used. A used base material is stored in a base material storage cylinder in the second compartment to serve as a handwriting sample; the type of the base material comprises an electrostatic adsorption type base material and a magnetic type base material; the adhesion mode of the base material is an electrostatic adsorption mode, a sticking mode and a magnetic attraction mode; the surface roughness of the base material ranges from Ra0.05 to Ra2, and from Ra2.1 to Ra12.5; the color of the base material comprises the following colors: transparent color, white color, green color, black color and red color; according to the field environment, the material, the shape, the color and the roughness degree of the handwriting bearing body and different types of writing tools of field handwriting, base materials or base material combinations of different types, surface roughness and colors are selected as bearing bodies for handwriting extraction.

Description

Technical Field

[0001] The utility model relates to the technical field of physical evidence extraction, in particular to a handwriting experiment sample extraction tool suitable for various writing environments and writing conditions. Background Art

[0002] As a professional technology in the field of forensic science and technology, handwriting examination plays a key technical role in the investigation and handling of various cases. In particular, in cases involving slogans (big-character posters) and similar cases, handwriting examination technology plays a very important role in quickly and accurately identifying the writer and providing technical support for the case-handling department to handle the case in accordance with the law.

[0003] The handwriting at the scene of such cases is mostly written on unconventional writing carriers such as walls, door panels, billboards, etc. In addition to using writing tools such as markers, chalk, pens, and brushes, some criminals also use bricks, spray paint, colored plant roots and other abnormal writing tools to write, spray, scratch, erase, and engrave handwriting. Due to the complexity of handwriting, changes in writing tools, writing carriers, and writing conditions, the handwriting at the scene of the case will have large characteristic differences from normal handwriting. At present, in such real cases, there are no special handwriting experimental sample extraction tools. The extraction method is mainly to use conventional format specifications such as A3 and A4 paper, and use writing tools such as markers to write normally against the wall or in a sitting position. The extraction method is single and non-standard, resulting in the extracted handwriting experimental samples cannot match the various experimental environments and scene specifications of the case scene, far from meeting the requirements of restoring the writing conditions at the scene, causing great difficulties for the inspection and identification work, and even the inspection and identification work cannot be carried out because the experimental samples cannot meet the identification conditions, which leads to a bottleneck in the investigation and solving of the case. At the same time, the storage and carrying of experimental samples after extraction are rather random, and entirely depend on the meticulousness of investigators. There are no special storage tools, and the extraction, preservation, and transportation processes lack standardization and consistency. Large-format experimental samples are easily folded, contaminated, and damaged, which is not conducive to subsequent investigation, solving cases, and inspection and identification work. Summary of the invention

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and to propose a handwriting experiment sample extraction tool that can achieve a high degree of restoration of on-site writing conditions and solve the problem of handwriting experiment sample extraction in situations including but not limited to abnormal writing (such as writing, scratching, erasing, spraying, engraving, etc.) such as slogans (big-character posters) and similar cases, as well as changes in conditions.

[0005] A handwriting experiment sample extraction tool comprises a first accommodating area and a second accommodating area, wherein the second accommodating area is arranged on the outer surface of the first accommodating area;

[0006] The first accommodating area is used to place the substrate storage tube; the second accommodating area is used to place the adhesive storage box, the writing tool box and the auxiliary tool box;

[0007] The first storage area and the second storage area both include an upper cover and a partition, and the upper cover can close the first storage area / the second storage area; wherein the upper cover of the first storage area is made of a transparent material, and at least a part of the outer side surface of the second area is transparent, so as to facilitate viewing of the items inside;

[0008] The inner wall of the first storage area includes a detachably connected first partition, the first partition divides the first storage area into an independent first compartment and a second compartment, a plurality of the substrate storage tubes are placed in the first compartment, each of the substrate storage tubes contains at least one substrate to be used, and the substrates have different types, materials, and / or surface roughness, and / or colors; the substrate storage tube is placed in the second compartment, the substrate storage tube stores the used substrate (as a handwriting sample), and the substrate includes the extracted handwriting;

[0009] Wherein, the substrate is made of a flexible material and is used by operators to extract handwriting samples on site; wherein, the types of the substrate include electrostatic adsorption substrate and magnetic adsorption substrate;

[0010] The substrate is attached in the following ways: electrostatic adsorption, adhesive bonding and magnetic attraction;

[0011] The surface roughness of the substrate includes the following two surface roughness ranges: surface roughness of Ra0.05-Ra2 and surface roughness of Ra2.1-Ra12.5;

[0012] The colors of the substrate include the following colors: transparent, white, green, black and red;

[0013] The surface of the substrate is printed with scales at intervals to mark the size ratio of the writing on the substrate;

[0014] The adhesive storage box is used to store adhesive, and the adhesive is used to connect the substrate with the writing carrier; the adhesive includes at least the following two types: white adhesive, black adhesive, blue adhesive and fully transparent adhesive;

[0015] The writing tool box is used to store writing tools, including markers, paint pens, chalks, spray paints, and carving knives; the writing colors of the writing tools include at least two of the following: white, black, red, and blue;

[0016] The auxiliary tool box is used to place a substrate cutting knife, a ruler, an on-site scale, and a label; the substrate cutting knife and the ruler are used to cut the substrate; the ruler is used as a measuring and leveling tool, and the on-site scale is used according to actual needs; the label is used to indicate the name, purpose, and related information of the stored contents;

[0017] Moreover, the adhesive storage box, the side walls of the writing tool box and the auxiliary tool box, and the top of the substrate storage tube cover all have marking areas for sticking the marking stickers in the auxiliary tool box.

[0018] Depending on the on-site environment, the material, shape, color and roughness of the handwriting carrier, and the different types of writing tools used for the on-site handwriting, substrates or substrate combinations of different types, surface roughness and colors are selected as the carrier for handwriting sample extraction.

[0019] Furthermore, the material of the electrostatic adsorption substrate is PP / PVC material, which is suitable for the surface of various types of roughness, shape, and area of ​​writing carriers. It can especially solve the problem of extracting writing on the surface of writing carriers with uneven roughness, low surface flatness, irregular shape, and small area (it can be directly adsorbed on the surface of most writing carriers, and some special writing carriers may need to be glued with adhesive), and is suitable for writing tools such as markers, chalks, paint pens, and self-spray paints; the material of the magnetic substrate includes environmentally friendly PET / frosted PP film + mixed iron rubber fiber material, and environmentally friendly PET / frosted PP film + mixed Iron rubber fiber + rubber magnet; it is environmentally friendly PET / frosted PP film + mixed iron rubber fiber, suitable for all kinds of smooth, flat, relatively regular-shaped writing carrier surfaces, and can be adhered to the writing carrier surface with adhesive backing; environmentally friendly PET / frosted PP film + mixed iron rubber fiber + rubber magnet, suitable for smooth, flat, relatively regular-shaped writing carrier surfaces, especially suitable for iron writing carriers, and can be directly adsorbed on the surface of iron writing carriers; and the above two types of magnetic substrates are suitable for writing tools such as markers, chalks, paint pens, spray paints, and engraving knives, and can especially solve the problem of extracting engraved writing.

[0020] Furthermore, the magnetic substrate also includes a magnetic bottom, the material of which is mixed ferromagnetic rubber, which is suitable for various smooth, flat, relatively regular-shaped writing carrier surfaces, and is particularly suitable for large-area writing carriers or laboratory environments. When in use, one side of the magnetic bottom is adhered to the writing carrier surface through the backing adhesive, and the other side can directly adsorb the magnetic substrate onto the magnetic bottom.

[0021] Furthermore, the first accommodating area and the second accommodating area are made of flexible material, and the first accommodating area includes a handle and an adjustable shoulder strap.

[0022] Furthermore, the upper cover closes the first accommodating area / the second accommodating area in an opening and closing control mode selected from one of a zipper, a button, and a hook connection.

[0023] Furthermore, the first storage area and the second storage area also include a plurality of third partitions and a second partition, and the plurality of third partitions and the second partitions are respectively spliced ​​and combined by card boards to separate the first storage area / the second storage area into a plurality of storage spaces.

[0024] Furthermore, a marking area is provided on the top of the substrate storage tube cover for recording the type, specification, size, color and roughness of the substrate to be used stored in the substrate storage tube, or recording the case number, name, collection time and location of the extracted text evidence or handwriting experiment sample.

[0025] Furthermore, at least part of the outer surface of the adhesive storage box, writing tool box and auxiliary tool box is made of transparent material. When the adhesive storage box, writing tool box and auxiliary tool box are placed in the second storage area, the transparent material portion faces the transparent material area of ​​the second storage area, making it easy to view the internal items.

[0026] Furthermore, tearable breaking points are arranged at intervals of 1 meter along the width direction of the substrate; the above arrangement facilitates users to quickly access the substrate.

[0027] Furthermore, a scale is printed on the substrate at intervals of 1 meter along the width direction to mark the size ratio of the writing on the substrate.

[0028] Furthermore, the height of the substrate storage tube is 125 cm, 85 cm or 55 cm, and the width of the substrate is 120 cm, 80 cm or 50 cm which is adapted to the height of the substrate storage tube.

[0029] Preferably, the color of the substrate is selected from transparent, white, green or black; the color of the adhesive includes white, black and blue, the white adhesive is used for wallpaper, wall cloth, cabinets, and wooden writing carriers; the black adhesive is used for tiles, glass, iron sheets, and plastic writing carriers; the blue adhesive is used for white walls and latex paint wall writing carriers.

[0030] Compared with the prior art, the beneficial effects brought about by the technical solution of the utility model are:

[0031] The handwriting experimental sample extraction tool of the utility model can provide different handwriting sample extraction substrates for various different scenes at the crime scene, can realize on-site and rapid extraction of case handwriting experimental samples, and can realize the rapid inspection of handwriting to the greatest extent. At the same time, it meets the technical requirements of simple operation, quick use and quick cleaning, high efficiency and environmental protection, and easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of the structure of the handwriting experiment sample extraction tool;

[0033] Figure 2 is a cross-sectional view of a first receiving area;

[0034] Figure 3 It is a schematic diagram of the structure of a writing tool box;

[0035] Figure 4 It is a schematic diagram of the structure of the adhesive storage box;

[0036] Figure 5 It is a substrate with tearable breaking points;

[0037] Figure 6 It is another substrate with tearable breakpoints.

[0038] in,

[0039] 1: First storage area; 2: Second storage area; 3: Adhesive storage box; 4: Writing tool box;

[0040] 6: substrate storage tube; 13: upper cover; 14: first partition;

[0041] 15: handle; 16: adjustable shoulder strap; 17: second partition; 18: first compartment;

[0042] 19: first compartment; 20: third partition; 31: top cover; 32: upper box; 33: middle box;

[0043] 34: lower box; 41: box body; 43: tool box cover; 42: tool box partition

[0044] 44: tearable breaking point; 45: scale. DETAILED DESCRIPTION

[0045] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The described specific embodiments are only used to explain the present invention and are not intended to limit the present invention.

[0046] Reference will now be made in detail to specific embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Although the present invention will be described in conjunction with specific embodiments, it will be understood that it is not intended to limit the present invention to the embodiments described. On the contrary, it is intended to cover changes, modifications and equivalents included in the spirit and scope of the present invention as defined by the appended claims. It should be noted that the method steps described herein can all be implemented by any functional block or functional arrangement, and any functional block or functional arrangement can be implemented as a physical entity or a logical entity, or a combination of the two.

[0047] Example 1

[0048] like Figure 1-2 As shown, a handwriting experiment sample extraction tool comprises a first accommodating area 1 and a second accommodating area 2, wherein the second accommodating area 2 is arranged on the outer surface of the first accommodating area 1. The first accommodating area 1 and the second accommodating area 2 can be made of flexible materials. The first accommodating area 1 and the second accommodating area 2 are equal in length, and the height and width of the first accommodating area 1 are greater than those of the second accommodating area 2.

[0049] The first storage area 1 is square and its outer surface is made of flexible material, including a handle 15, an adjustable shoulder strap 16 and an upper cover 13. The handle 15 and the adjustable shoulder strap 16 are fixedly arranged on the outer surface of the first storage area 1, and a first partition 14 is vertically arranged in the first storage area 1, so as to separate the first storage area 1 into an independent first compartment 18 and a second compartment 19. The height and width of the first partition 14 are adapted to the first storage area 1. In addition, the top wall of the first storage area 1 is provided with two openable and closable upper covers 13, the upper covers 13 are made of transparent material, and the upper covers 13 and the first storage area 1 are opened and closed by a zipper. According to actual needs, the upper cover 13 and the first storage area 1 can also be opened and closed by a button type, a hook type or other opening and closing control method.

[0050] The reason why the upper cover of the first storage area is selected to be transparent is that the first storage area 1 is used to place the substrate storage tube 6, and the upper cover of the substrate storage tube 6 is affixed with a label for viewing the details of the items currently in the substrate storage tube.

[0051] The second storage area 2 is used to place the adhesive storage box 3, the writing tool box 4 and the auxiliary tool box, and includes four transparent upper covers 13. The upper covers 13 and the second storage area 2 are also opened and closed by a zipper. The second storage area 2 is provided with three second partitions 17, thereby dividing the second storage area 2 into four independent third compartments. The height and width of the second partitions 17 are adapted to the second storage area 2. Part of the upper outer side surface of the second storage area 2 is made of transparent material, and at least part of the outer surface of the adhesive storage box 3, the writing tool box 4 and the auxiliary tool box in the second area is also made of transparent material. When the adhesive storage box 3, the writing tool box 4 and the auxiliary tool box are placed in the second storage area 2, the transparent material part faces the transparent material area of ​​the second storage area 2, which is convenient for viewing the internal items.

[0052] The first compartment 18 and the second compartment 19 in the first storage area 1 are both used to place the substrate storage tube 6. The first compartment 18 has a plurality of substrate storage tubes 6, and the substrate storage tubes 6 in the first compartment 18 store substrates to be used. The second compartment 19 also includes a plurality of substrate storage tubes 6. The substrate storage tubes 6 in the second compartment are used to store used substrates as handwriting samples, and the substrates include extracted handwriting. Figure 2 As shown, a plurality of third partitions 20 are arranged in the first compartment 18 and the second compartment 19. The third partitions 20 have different sizes, and the third partitions can be combined to separate the first compartment 18 / the second compartment 19 into a plurality of storage spaces. The third partitions are arranged using the cardboard in the existing box, are detachable, and can slide along the inner wall of the first compartment 18 / the second compartment 19 as needed to adjust the space size.

[0053] The cross section of the substrate storage tube 6 is circular, including a bottom surface, a tube cover and a side wall. The tube cover can be buckled on the side wall, and the top of the cover is provided with a marking area, which is used to record the type, specification, size, color and roughness of the substrate to be used stored in the substrate storage tube 6, or to record the case number name, collection time and place of the extracted text evidence or handwriting experiment sample, so as to facilitate the subsequent inspection and identification work. The height of the substrate storage tube 6 is 125cm.

[0054] The substrate is used by operators to extract handwriting samples on site. The substrate is made of a flexible material and can be rolled into a cylinder and then inserted into the substrate storage tube 6. The substrate is rectangular when laid flat and has a fixed width. The width of the substrate is 120 cm to fit the substrate storage tube 6. The length of the substrate is cut according to actual needs. To facilitate quick access by users, tearable breakpoints are set every 1 meter along the width direction of the substrate, such as Figure 5 As shown, the breakpoints 44 can also be set along the substrate in the transverse and longitudinal directions. Figure 6 shown.

[0055] The substrate of the utility model is provided with a plurality of different colors, different attachment modes, different sizes and different roughness levels in order to adapt to the handwriting sample extraction work under different case scene environments and writing conditions.

[0056] like Figure 3 As shown, the writing tool box 4 is used to place writing tools, including markers, paint pens, chalks, spray paints, carving knives, etc., to meet the writing tool conditions at most case sites.

[0057] The writing tool box 4 includes a box body 41, a tool box cover 43 and a tool box partition 42. Part of the area of ​​the tool box box body 1 is a transparent area made of transparent material, which is convenient for users to check the number and status of stored items. One side of the tool box cover 43 is fixed to the top wall of the box body 41, and the rest is opened and closed with a zipper on the top wall of the box body 41.

[0058] The toolbox partition 42 is a partition with different sizes. By combining the toolbox partition 42, the inner cavity of the box body 41 is divided into multiple storage spaces. The toolbox partition 42 is configured by using a cardboard in an existing box, which is detachable and can slide along the inner wall of the box body 1 to adjust the space size as needed.

[0059] The structure of the auxiliary tool box is similar to that of the writing tool box 4, and also includes a box body, an upper cover and a partition. Part of the box body is a transparent area for viewing, which will not be described in detail here, nor will it be shown in the form of additional drawings. The auxiliary tools placed in the auxiliary tool box include substrate cutting scissors, a long ruler, an on-site scale, and a marking sticker. When the substrate needs to be an irregular shape or it is inconvenient to intercept through a tearable breakpoint, the substrate cutting scissors and a long ruler in the auxiliary tool box are used to cut the substrate. The long ruler is used as a measuring and leveling tool, and the on-site scale and marking sticker are used as spare tools.

[0060] like Figure 4 As shown, the adhesive storage box 3 is a cylinder, which includes a top cover 31 and an upper box 32, a middle box 33 and a lower box 34 from top to bottom. The upper box 32, the middle box 33 and the lower box 34 are used to store adhesive. The adhesive is a rectangular adhesive with adhesive on both sides, which can be rolled into a cylindrical shape and then loaded into the box. And the adhesive is used to connect the substrate (the electrostatic adsorption type also needs adhesive in some cases, which is written in the description above, so it can be collectively referred to as the substrate) with the writing carrier. The colors of the adhesive include white, black and blue; white adhesive is used for writing carriers such as wallpaper, wall cloth, cabinet, wood, etc.; black adhesive is used for writing carriers such as tiles, glass, iron sheets, plastics, etc.; blue adhesive is used for writing carriers such as white walls and latex paint walls. Using the substrate with different adhesives on different writing carriers is simple to operate and firmly installed, and can achieve rapid on-site arrangement, rapid cleaning, and no traces, meeting the work requirements of high efficiency, safety, confidentiality, convenience, and environmental protection.

[0061] The top cover 31, the upper box 32, the middle box 33 and the lower box 34 are arranged vertically along the central axis, and the top cover 31 is threadedly connected to the upper box 32 located thereunder, the upper box 32 is threadedly connected to the middle box 33, and the middle box 33 is threadedly connected to the lower box 34. That is, the inner wall of the top cover 31 at the edge of the mouth is provided with an internal thread, the outer walls of the upper box 32 and the middle box 32 near the opening are provided with an external thread, and the inner wall of the bottom is provided with an internal thread; the outer wall of the lower box 34 near the opening is provided with an external thread. The internal threads are all adapted to the external threads, so that the top cover 31 and the upper box 32, the middle box 33 and the lower box 34 are tightened along the spiral lines in sequence, and the four parts can be fixed.

[0062] Moreover, the side walls of the upper box 32, the middle box 33 and the lower box 34 are all provided with marking areas for recording the names and uses of the adhesives stored in each box, so as to facilitate users to distinguish and use them and quickly and accurately extract them.

[0063] When the on-site writing carrier is a soft leather seat and the writing is written with a black marker, the operator views the marking area of ​​the substrate storage cylinder 6 in the first compartment 18 through the transparent area of ​​the top cover of the first accommodating area 1, and selects:

[0064] The substrate type is electrostatic adsorption type. The substrate is a PVC film and is attached in an electrostatic adsorption manner. The surface roughness of the substrate is a smooth surface of Ra0.05-Ra2. At the bottom edge of the substrate surface, a scale of 45 (a special scale for photographing criminal evidence) is printed every 1 meter to mark the size ratio of the writing on the substrate, which is convenient for inspectors to analyze the on-site situation and carry out inspection and identification work. The substrate color is transparent. The substrate height is 120 cm, and the height of the substrate storage tube 6 is 125 cm.

[0065] When in use, remove the substrate along the tearable breakpoint, use the substrate cutting scissors in the auxiliary tool box to cut the substrate into irregular patterns that fit the size of the handwriting carrier, directly adsorb the substrate on the handwriting carrier, flatten it, use the black marker in the writing tool box 4 to write the handwriting experimental sample, and wait for the handwriting to dry slightly before removing it. Roll the substrate with the handwriting extracted into a roll and put it into the substrate storage tube 6 in the second compartment 19; use the label in the auxiliary tool box to record the case number, the location and time of the handwriting extraction, the writing tool, etc.; and stick the label recording the case number, the location and time of the handwriting extraction, the writing tool, etc. on the marking area at the top of the substrate storage tube.

[0066] The following embodiments only describe the contents that are different from Embodiment 1, and the same contents are not repeated here.

[0067] Example 2

[0068] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0069] The carrier of the on-site writing is the balcony glass window, the writing is written with a blue marker pen, the selected substrate type is electrostatic adsorption, the surface roughness of the substrate is a smooth surface of Ra0.05-Ra2, and the material is PVC film; the substrate attachment method is electrostatic adsorption, the substrate color is transparent, the height of the substrate is 80cm, and the height of the substrate storage tube 6 is 85cm.

[0070] When in use, use the blue marker pen in the writing tool box 4 to write the handwriting experimental sample.

[0071] Example 3

[0072] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0073] The carrier of the on-site writing is the side wall of the marble flower bed, and the writing is sprayed with white spray paint. The type of substrate selected is electrostatic adsorption, the surface roughness of the substrate is a smooth surface of Ra0.05-Ra2, and the material is PVC film; the substrate attachment method is electrostatic adsorption, the substrate color is transparent, the height of the substrate is 50cm, and the height of the substrate storage tube 6 is 55cm.

[0074] When in use, use the white spray paint of the writing tool box 4 to spray the handwriting experimental sample.

[0075] Example 4

[0076] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0077] The carrier of the on-site writing is a lime wall, and the writing is sprayed with black self-painted paint. The selected substrate type is electrostatic adsorption type, the surface roughness of the substrate is a rough surface of Ra2.1-Ra10, and the material is PVC film; the substrate attachment method is electrostatic adsorption type, the substrate color is white, the height of the substrate is 120cm, and the height of the substrate storage tube 6 is 125cm.

[0078] When in use, use the black spray paint of the writing tool box 4 to spray the handwriting experimental sample.

[0079] Example 5

[0080] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0081] When the on-site writing carrier is a wooden floor and the writing is written with a red marker, the selected substrate type is electrostatic adsorption, the surface roughness of the substrate is a rough surface of Ra2.1-Ra10, and the material is PVC film; the substrate attachment method is electrostatic adsorption, the substrate color is white, the height of the substrate is 80cm, and the height of the substrate storage tube 6 is 85cm.

[0082] When in use, use the red marker in the writing tool box 4 to write the handwriting experimental sample.

[0083] Example 6

[0084] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0085] When the on-site writing carrier is a stone slide in the park and the writing is sprayed with red spray paint, the selected substrate type is electrostatic adsorption, the surface roughness of the substrate is a rough surface of Ra2.1-Ra10, and the material is PVC film; the substrate attachment method is electrostatic adsorption, the substrate color is white, the height of the substrate is 50cm, and the height of the substrate storage tube 6 is 55cm.

[0086] During use, the red self-spray paint of the writing tool box 4 is used to spray the handwriting experimental sample.

[0087] Example 7

[0088] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0089] When the on-site writing carrier is a metal rolling door and the writing is written with a golden metal pen, the selected substrate type is electrostatic adsorption type, the surface roughness of the substrate is a rough surface of Ra10.5-Ra12.5, and the substrate material is PP film; the substrate attachment method is adhesive type, the substrate color is white, the substrate height is 120cm, and the height of the substrate storage tube 6 is 125cm.

[0090] When in use, the substrate and the writing carrier need to be connected by using the adhesive with adhesive on both sides in the adhesive storage box 3, and the adhesive is black.

[0091] When in use, use the golden metal pen of the writing tool box 4 to write the handwriting experimental sample.

[0092] Example 8

[0093] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0094] The carrier of the writing on site is a thick tree trunk, and the writing is written with a silver metal pen. The type of substrate selected is electrostatic adsorption type, the surface roughness of the substrate is a rough surface of Ra10.5-Ra12.5, and the material is PP film; the substrate attachment method is adhesive type, the substrate color is white, the substrate height is 80cm, and the substrate storage tube 6 height is 85cm.

[0095] When in use, the substrate and the writing carrier need to be connected by using the adhesive with adhesive on both sides in the adhesive storage box 3, and the adhesive is white.

[0096] When in use, use the silver metal pen of the writing tool box 4 to write the handwriting experimental sample.

[0097] Example 9

[0098] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0099] The carrier of the writing on site is a large piece of gravel, and the writing is written with a brown marker pen. The selected substrate type is electrostatic adsorption type, the surface roughness of the substrate is a rough surface of Ra10.5-Ra12.5, and the material is PP film; the substrate attachment method is adhesive type, the substrate color is white, the substrate height is 50cm, and the substrate storage tube 6 height is 55cm.

[0100] When in use, the substrate and the writing carrier need to be connected by using the adhesive with adhesive on both sides in the adhesive storage box 3, and the adhesive is blue.

[0101] When in use, use the brown marker pen in the writing tool box 4 to write the handwriting experimental sample.

[0102] Example 10

[0103] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0104] The carrier of the on-site writing is a metal transformer box, and the writing is spray-written in red spray paint. The selected substrate type is a magnetic substrate, the surface roughness of the substrate is a smooth surface of Ra0.05-Ra2, and the material is environmentally friendly PET / frosted PP film + mixed iron rubber fiber + rubber magnet; the substrate attachment method is magnetic, the substrate color is white, the substrate height is 120cm, and the height of the substrate storage tube 6 is 125cm.

[0105] During use, the red self-spray paint of the writing tool box 4 is used to spray the handwriting experimental sample.

[0106] Embodiment 11

[0107] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0108] When the on-site writing carrier is an iron bus stop sign and the writing is written in white chalk, the selected substrate type is a magnetic substrate, the surface roughness of the substrate is a smooth surface of Ra0.05-Ra2, and the material is environmentally friendly PET / frosted PP film + mixed iron rubber fiber + rubber magnet; the substrate attachment method is magnetic, the substrate color is white, the substrate height is 80cm, and the substrate storage tube 6 height is 85cm.

[0109] When in use, the white chalk in the writing tool box 4 is used to write the handwriting experimental sample.

[0110] Example 12

[0111] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0112] When the carrier of the on-site writing is a striped iron guardrail on the roadside and the writing is written with a red marker, the selected substrate type is a magnetic substrate, the surface roughness of the substrate is a rough surface of Ra10.5-Ra12.5, and the material is environmentally friendly PET / frosted PP film + mixed iron rubber fiber + rubber magnet; the substrate attachment method is magnetic, the substrate color is green, the substrate height is 50cm, and the substrate storage tube 6 height is 55cm.

[0113] When in use, use the red marker in the writing tool box 4 to write the handwriting experimental sample.

[0114] Example 13

[0115] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0116] The carrier of the on-site writing is the glass signboard of the bus stop, and the writing is spray-written in black spray paint. The selected substrate type is a magnetic substrate, the surface roughness of the substrate is a smooth surface of Ra0.05-Ra2, and the material is environmentally friendly PET / frosted PP film + mixed iron rubber fiber; the substrate is attached in an adhesive manner, the substrate color is white, the substrate height is 120cm, and the height of the substrate storage tube 6 is 125cm.

[0117] When in use, the substrate and the writing carrier need to be connected by using the adhesive with adhesive on both sides in the adhesive storage box 3, and the adhesive is black.

[0118] When in use, use the black spray paint of the writing tool box 4 to spray the handwriting experimental sample.

[0119] Embodiment 14

[0120] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0121] The carrier of the on-site writing is a wall with wallpaper, and the writing is in a black marker pen. The selected substrate type is a magnetic substrate, the surface roughness of the substrate is a rough surface of Ra2.1-Ra10, and the material is environmentally friendly PET / frosted PP film + mixed iron rubber fiber; the substrate attachment method is adhesive, the substrate color is black, the substrate height is 80cm, and the substrate storage tube 6 height is 85cm.

[0122] When in use, the substrate and the writing carrier need to be connected by using the adhesive with adhesive on both sides in the adhesive storage box 3, and the adhesive is white.

[0123] When in use, use the black marker in the writing tool box 4 to write the handwriting experimental sample.

[0124] Embodiment 15

[0125] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0126] When the on-site handwriting carrier is a diatom wall and the handwriting is written in red chalk, the selected substrate type is a magnetic substrate, the surface roughness of the substrate is a rough surface of Ra10.5-Ra12.5, and the material is environmentally friendly PET / frosted PP film + mixed iron rubber fiber; the substrate attachment method is adhesive, the substrate color is green, the substrate height is 50cm, and the substrate storage tube 6 height is 55cm.

[0127] When in use, the substrate and the writing carrier need to be connected by using the adhesive with adhesive on both sides in the adhesive storage box 3, and the adhesive is blue.

[0128] When in use, use the red chalk in the writing tool box 4 to write the handwriting experimental sample.

[0129] Example 16

[0130] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0131] The on-site handwriting carrier is a wall with wallpaper in the document inspection evidence laboratory, and the handwriting is a black marker pen. The selected substrate type is a magnetic substrate, the surface roughness of the substrate is a smooth surface of Ra0.05-Ra2, and the material is environmentally friendly PET / frosted PP film + mixed iron rubber fiber. The substrate attachment method is to use a magnetic bottom for magnetic attraction. The color of the substrate is white, and the height of the substrate is 120cm; the height of the substrate storage tube 6 is 125cm. The selected magnetic bottom material is mixed iron magnetic rubber, the color is black, and the height of the magnetic bottom is 120cm.

[0132] When in use, according to the size of the writing carrier, the magnetic base is removed along the tearing points in the length and width directions respectively, and the magnetic base is connected to the writing carrier using the adhesive with double-sided adhesive in the adhesive storage box 3, and the adhesive is white.

[0133] When in use, the magnetic substrate is removed along the tearing points in the width direction according to the size of the writing carrier and the magnetic base, and the substrate is directly adsorbed onto the already pasted magnetic base and flattened.

[0134] Use the black marker in the writing tool box 4 to write the handwriting experimental sample on the magnetic substrate, and remove it after the handwriting is slightly dry. Roll the substrate with the handwriting extracted into a roll and put it into the substrate storage tube 6 in the second compartment 19, and use the label in the auxiliary tool box to record the case number, the location and time of handwriting extraction, writing tools, etc.; and stick the label recording the case number, the location and time of handwriting extraction, writing tools, etc. on the marking area at the top of the substrate storage tube.

[0135] Embodiment 17

[0136] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0137] The carrier of the on-site writing is a glass plate in the laboratory of the case-handling unit. When the writing is black spray-painted, the type of substrate selected is a magnetic substrate. The surface roughness of the substrate is a smooth surface of Ra0.05-Ra2. The material is environmentally friendly PET / frosted PP film + mixed iron rubber fiber. The substrate is attached by magnetic attraction using a magnetic bottom. The color of the substrate is black. The height of the substrate is 120cm; the height of the substrate storage tube is 125cm. The material of the magnetic bottom is mixed iron magnetic rubber, the color is black, and the height of the magnetic bottom is 120cm.

[0138] When in use, according to the size of the writing carrier, the magnetic base is removed along the tearing points in the length and width directions respectively, and the magnetic base is connected to the writing carrier using the adhesive with double-sided adhesive in the adhesive storage box 3, and the adhesive is black.

[0139] When in use, the magnetic substrate is removed along the tearing points in the width direction according to the size of the writing carrier and the magnetic base, and the substrate is directly adsorbed onto the already pasted magnetic base and flattened.

[0140] Use the black spray paint in the writing tool box 4 to spray the handwriting experimental sample on the magnetic substrate, and remove it after the handwriting is slightly dry. Roll the substrate with the handwriting extracted into a roll and put it into the substrate storage tube 6 in the second compartment 19, and use the label in the auxiliary tool box to record the case number, the location and time of the handwriting extraction, the writing tool, etc.; and stick the label recording the case number, the location and time of the handwriting extraction, the writing tool, etc. on the marking area at the top of the substrate storage tube.

[0141] Embodiment 18

[0142] A handwriting experiment sample extraction tool, the scene of the writing sample to be extracted is:

[0143] When the on-site writing carrier is an unfinished arc-shaped rough cement bridge pier and the writing is red spray paint, the selected substrate type is a magnetic substrate, the surface roughness of the substrate is a rough surface of Ra2.1-Ra10, the material is environmentally friendly PET / frosted PP film + mixed iron rubber fiber, the substrate attachment method is to use a magnetic bottom for magnetic attraction, the substrate color is green, the substrate height is 120cm; the height of the substrate storage tube 6 is 125cm. The selected magnetic bottom material is mixed iron magnetic rubber, the color is black, and the height of the magnetic bottom is 120cm.

[0144] When in use, according to the size of the writing carrier, the magnetic base is removed along the tearing points in the length and width directions respectively, and the magnetic base is connected to the writing carrier using the adhesive on both sides of the adhesive storage box 3, and the adhesive is blue.

[0145] When in use, the magnetic substrate is removed along the tearing points in the width direction according to the size of the writing carrier and the magnetic base, and the substrate is directly adsorbed onto the already pasted magnetic base and flattened.

[0146] Use the red spray paint in the writing tool box 4 to spray the handwriting experimental sample on the magnetic substrate, and remove it after the handwriting is slightly dry. Roll the substrate with the handwriting extracted into a roll and put it into the substrate storage tube 6 in the second compartment 19, and use the label in the auxiliary tool box to record the case number, the location and time of the handwriting extraction, the writing tool, etc.; and stick the label recording the case number, the location and time of the handwriting extraction, the writing tool, etc. on the marking area at the top of the substrate storage tube.

[0147] The above embodiments are merely illustrative examples. Designing different substrate materials and substrate attachment methods according to actual needs, selecting different sizes and colors to extract handwriting experimental samples, selecting storage devices of different sizes and shapes, selecting adhesives with different applicable ranges to cooperate with substrates according to different handwriting carriers, selecting different writing tools for sample extraction according to the on-site writing tool conditions, and selecting different auxiliary tools according to the on-site conditions are all within the protection scope of the present utility model.

[0148] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, all of which belong to the scope of protection of the present invention.

Claims

1. A handwriting experiment sample extraction tool, characterized in that It comprises a first accommodating area (1) and a second accommodating area (2), wherein the second accommodating area (2) is arranged on the outer surface of the first accommodating area (1); The first accommodating area (1) is used to place a substrate storage tube (6); the second accommodating area (2) is used to place an adhesive storage box (3), a writing tool box (4) and an auxiliary tool box; The first storage area (1) and the second storage area (2) both comprise an upper cover (13) and a partition, and the upper cover (13) is capable of closing the first storage area (1) / the second storage area (2); wherein the upper cover of the first storage area (1) is made of a transparent material, and at least a part of the outer side surface of the second storage area (2) is transparent, so as to facilitate viewing of the items inside; The inner wall of the first storage area (1) comprises a detachably connected first partition (14), the first partition (14) dividing the first storage area (1) into an independent first compartment (18) and a second compartment (19), a plurality of the substrate storage tubes (6) are placed in the first compartment (18), each of the substrate storage tubes (6) contains at least one substrate to be used, the substrates having different types, materials, and / or different surface roughness, and / or different colors; the second compartment (19) is placed in the substrate storage tube (6), the substrate storage tube (6) storing used substrates as handwriting samples; Wherein, the substrate is a flexible material, which is used by operators to extract handwriting samples on site; Wherein, the types of the substrate include electrostatic adsorption substrate and magnetic adsorption substrate; The attachment method of the substrate includes electrostatic adsorption, adhesive bonding and magnetic attraction; The surface roughness of the substrate includes the following two surface roughness ranges: surface roughness of Ra0.05-Ra2 and surface roughness of Ra2.1-Ra12.

5.

2. The handwriting experiment sample extraction tool according to claim 1, characterized in that: The magnetic substrate also includes a magnetic bottom, the material of which is mixed iron magnetic rubber. When in use, one side of the magnetic bottom is adhered to the surface of the writing carrier through the backing adhesive, and the other side can directly adsorb the magnetic substrate onto the magnetic bottom.

3. The handwriting experiment sample extraction tool according to claim 1, characterized in that: The first storage area (1) and the second storage area (2) further include a plurality of third partitions (20) and second partitions (17), and the plurality of third partitions (20) and second partitions (17) are respectively spliced ​​and assembled by means of cardboards, thereby dividing the first storage area (1) / the second storage area (2) into a plurality of storage spaces.

4. The handwriting experiment sample extraction tool according to claim 1, characterized in that: The top of the substrate storage tube (6) is provided with a marking area for recording the type, specification, size, color and roughness of the substrate to be used stored in the substrate storage tube (6), or recording the case number, name, collection time and location of the extracted text evidence or handwriting experiment sample.

5. The handwriting experiment sample extraction tool according to claim 1, characterized in that: At least part of the outer surface of the adhesive storage box (3), the writing tool box (4) and the auxiliary tool box is made of transparent material. When the adhesive storage box (3), the writing tool box (4) and the auxiliary tool box are placed in the second storage area (2), the transparent material part faces the transparent material area of ​​the second storage area (2), so that the items inside can be easily viewed.

6. The handwriting experiment sample extraction tool according to claim 1, characterized in that: The substrate is provided with tearable breaking points (44) at intervals of 1 meter along the width direction.

7. The handwriting experiment sample extraction tool according to claim 1, characterized in that: A scale (45) is printed at intervals of 1 meter along the width direction of the substrate to mark the size ratio of the writing on the substrate.

8. The handwriting experiment sample extraction tool according to claim 1, characterized in that: The height of the substrate storage cylinder (6) is 125 cm, 85 cm or 55 cm, and the width of the substrate is 120 cm, 80 cm or 50 cm, which is adapted to the height of the substrate storage cylinder (6).

9. The handwriting experiment sample extraction tool according to claim 1, characterized in that: The upper cover (13) closes the first accommodating area (1) / the second accommodating area (2) in an opening and closing control mode selected from one of a zipper, a button, and a hook connection.

Images