CN115575162A

CN115575162A - Paint material evidence sampler

Info

Publication number: CN115575162A
Application number: CN202211380409.1A
Authority: CN
Inventors: 梅宏成; 朱军; 郭洪玲; 胡灿; 陶克明
Original assignee: Appraisal Center Of Ministry Of Public Security
Current assignee: Appraisal Center Of Ministry Of Public Security
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-01-06

Abstract

The invention relates to a paint material evidence sampler, which comprises a rotary cutter body, a supporting column and a handle, wherein the rotary cutter body is used for scraping paint; the support column is used for positioning and supporting; the rotary cutter body and the support column are both arranged on the bottom surface of the handle; the rotary cutter body, the support column and the handle form a whole; the sampler uses the support column as the center, and rotatory rotary-cut cutter body can be convenient draw paint, and the paint material evidence block type of drawing is big, the level is complete, the needs that satisfy material evidence inspection that can be better.

Description

Paint material evidence sampler

Technical Field

The invention relates to the technical field of material evidence sampling tools, in particular to a paint material evidence sampler.

Background

In the case of vehicles, the extraction of paint physical evidence is an important task. Automotive paints typically involve multiple levels of finish, paint, basecoat, and basecoat. In the prior art, the automobile paint physical evidence is generally extracted by cutting or scraping with a conventional knife or scalpel. When paint is cut or scraped, the requirements on skills such as controlling the angle of a knife face and finger strength are high, and the blade can break and break, so that the risk of damage to surrounding personnel is caused.

The existing paint extraction method has the defects of inconvenient operation, large damage area to vehicle paint, incomplete and fine extracted paint material evidence and the like, and the effect required by material evidence extraction and inspection cannot be achieved.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a paint evidence sampler, which can conveniently extract paint through a rotary cutter body, has a relatively large block size and complete layers, and can better meet the requirement of material evidence inspection.

In order to realize the purpose, the invention adopts the following technical scheme:

a paint evidence sampler comprising:

the rotary cutter body is used for scraping paint;

the supporting column is used for positioning and supporting;

the rotary cutter body and the support column are arranged on the bottom surface of the handle;

the rotary cutter body, the support column and the handle form a whole.

Preferably, the rotary cutter body is a cylinder with a cutting edge at the bottom.

Preferably, the edge face of the blade is an arc-shaped face recessed towards the inside of the cylinder.

Preferably, the bottom edge of the blade face of the blade is a straight edge or an arc-shaped edge which is concave inwards.

Preferably, the length of the near edge of the bottom surface of the rotary cutter body close to the supporting column is shorter than the far edge of the bottom surface of the rotary cutter body far from the supporting column.

Preferably, the bottom surface of the rotary cutter body is perpendicular to the side surface.

Preferably, the bottom surface of the rotary cutter body is an inclined surface, and an included angle between the side surface opposite to the cutting edge surface of the cutting edge is an obtuse angle.

Preferably, the blade surface of the blade is an inclined surface, and an included angle between the inclined surface and the bottom surface of the cylinder is an acute angle.

Preferably, the upper part of the supporting column is a cylinder, the lower part of the supporting column is a cone, and the sharp point at the bottom of the cone is a positioning supporting point.

Preferably, the rotary cutter further comprises a case sleeve sleeved outside the rotary cutter body and the support column for protecting the rotary cutter body and the support column.

Due to the adoption of the technical scheme, the invention has the following advantages:

1. the paint material evidence sampler provided by the invention takes the support column as the center, the rotary cutter body can conveniently extract paint, and the sampler is large in relative block shape and complete in layers, so that the material evidence inspection requirement can be better met.

2. The paint physical evidence sampler provided by the invention is simple to operate and saves labor.

3. According to the paint material evidence sampler provided by the invention, the rotary cutter body cannot be broken, and the damage of the blade to the extraction personnel can be prevented.

4. The paint evidence sampler provided by the invention has small damage area to the paint of the vehicle when the sample is extracted by rotary cutting.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Like reference numerals refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic front view of a paint evidence sampler according to an embodiment of the present invention.

Fig. 2 is a front view of the rotary cutter body according to the embodiment of the present invention.

Fig. 3 is a structural plan view of the rotary cutter body according to the embodiment of the present invention.

Fig. 4 is a schematic three-dimensional structure view of a rotary cutter body according to another embodiment of the present invention.

Fig. 5 is a schematic three-dimensional structure of a rotary cutting body according to still another embodiment of the present invention.

Fig. 6 is a schematic structural view of a rotary cutter body according to another embodiment of the present invention.

Fig. 7 is a top view of the handle of this embodiment provided by the present invention.

FIG. 8 is a top view of another embodiment of a handle provided by the present invention.

Fig. 9 is a top view of a handle according to yet another embodiment of the present invention.

Fig. 10 is a schematic front view of the kit of the paint evidence sampler according to the embodiment of the present invention.

In the drawings, the reference numerals denote the following:

1 is a rotary cutter body, 101 is a cutting edge, 102 is a near edge, 103 is a far edge, 2 is a supporting column, 3 is a handle, 301 is a handle body, 302 is a handle, and 4 is a box sleeve.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The paint material evidence sampler provided by the invention takes the support column as the center, the rotary cutter body can be rotated to conveniently extract paint, and the extracted paint material evidence is large in block size and complete in layer, so that the requirement of material evidence inspection can be better met.

The paint evidence sampler provided by the embodiment of the invention is explained in detail below with reference to the accompanying drawings.

Example 1

The paint evidence sampler provided in this embodiment, as shown in fig. 1 to fig. 3, includes a rotary cutter body 1, a supporting pillar 2 and a handle 3, wherein the rotary cutter body 1 is used for scraping paint, and the rotary cutter body 1 may be made of a hard metal material, for example: can be made of steel. The support column 2 is used for positioning support, the bottom of the support column 2 is a tip, supporting and positioning effects can be better achieved, and the support column 2 can also be made of steel. The rotary cutter body 1 and the support column 2 are both arranged on the bottom surface of the handle 3, and the handle 3 can be made of high polymer materials, for example: nylon has good hand feeling and high strength. Specifically, the bottom of the handle 3 is provided with a blind hole, the tops of the rotary cutter body 1 and the support column 2 are inserted into the blind hole, and the rotary cutter body 1, the support column 2 and the handle 3 can be connected by glue or interference fit to be fixed together, so that the rotary cutter body 1, the support column 2 and the handle 3 form a whole.

In this embodiment, the rotary cutter body 1 is a square cylinder, the bottom of the cylinder is provided with the cutting edge 101, and the square cylinder is used as the cutter body of the rotary cutter body 1, so that the strength is high, and the rotary cutter body is not broken in the process of extracting paint.

In this embodiment, the facet of cutting edge 101 is the arcwall face of sinking to cylinder inside, and the paint sample can better be cut to the arcwall face, and the risk of cutting process sample rupture can be reduced as far as to the arcwall face structure.

In this embodiment, as shown in fig. 4 and 5, the bottom edge of the edge surface of the blade 101 is a straight edge or an arc-shaped edge that is concave inwards, and the arc-shaped edge can better cut a sample. The proximal edge 102 of the side of the bottom surface of the rotary cutter body 1 which is closer to the support post 2 has a shorter length than the distal edge 103 of the bottom surface of the rotary cutter body 1 which is further from the support post 2, so that it is easier to cut a sample when the sample is rotationally cut.

The bottom surface of the rotary cutter body 1 may be perpendicular to the side surface, as shown in fig. 5, or the bottom surface of the rotary cutter body 1 is an inclined surface, and may be a side surface opposite to the cutting surface of the blade 101, that is, an included angle between the left side surface of the rotary cutter body 1 is an obtuse angle, so that when a sample is cut, the contact area between the bottom surface of the rotary cutter body 1 and a sample extraction object is reduced, and the friction force when the sample is cut is reduced, thereby saving labor in operation.

In another embodiment of the present invention, as shown in fig. 6, the blade surface of the blade 101 is a bevel surface, and the included angle between the bevel surface and the bottom surface of the cylinder is an acute angle, for example, an angle of 60 °, so that the blade is easier to process and is less prone to tipping during sampling. In this embodiment, the upper part of the support column 2 is a cylinder, the bottom is a cone, and the sharp point at the bottom of the cone is a positioning support point.

In another embodiment of the invention, the upper part of the support column 2 is a cylinder, the bottom is a needle point, and the needle point is a positioning support point.

In this embodiment, the rotary cutter body 1 and the support column 2 are arranged in parallel on the bottom surface of the handle, and the point of the support column 2 and the bottom surface of the rotary cutter body 1 are in the same plane; a space is arranged between the rotary cutter body 1 and the support column 2, the sharp point of the support column 2 is used as a positioning support point, and the space is the rotating radius.

In this embodiment, the handle 3 includes a handle body 301 and a handle 302, the handle body 301 and the handle 302 are vertically connected to each other, and the rotary cutter body 1 and the support column 2 are both disposed on the bottom surface of the handle body 301.

In this embodiment, as shown in fig. 1, the handle 301 and the handle 302 are both cylinders, and both are T-shaped, and the handle 301 is a square cylinder, so as to facilitate installation of the rotary cutter body 1 and the support column 2; the handle 302 may be a cylinder for easy grasping.

In another embodiment of the present invention, as shown in fig. 7, handle 302 may be cross-shaped to better control the sampler by hand.

In another embodiment of the present invention, the handle 301 is a cylinder, as shown in fig. 8, the handle 302 is a disk, and the cylinder is vertically disposed below the disk, specifically, in the middle of the disk; further, as shown in fig. 9, the side wall of the disc is provided with a curved surface, so that the disc can be held by hand more comfortably and can also be used for better force application.

In this embodiment, as shown in fig. 10, the paint evidence sampler further includes a box sleeve 4, the box sleeve 4 may be made of a polymer material and has good wear resistance, the box sleeve 4 has an inner cavity and a top opening, and is sleeved outside the rotary cutter body 1 and the support column 2, so that the rotary cutter body 1 and the support column 2 can be protected when the sampler is not used, and the rotary cutter body 1 and the support column 2 can be prevented from injuring other objects or people. In specific application, the upper part of the box sleeve 4 is sleeved on the handle body 301, the rotary cutter body 1 and the support column 2 are wrapped in the inner cavity of the rotary cutter body, the inner wall of the box sleeve 4 is tightly attached to the handle body 301 and mutually extruded, and the box sleeve 4 can be prevented from falling off from the handle body 301.

When the paint evidence sampler is used, the handle 3 is held by a hand, the box sleeve 4 is taken down, the conical tip point of the bottom cone of the support column 2 is fixed near the part to be sampled, and the distance from the tip point to the sampling part ensures that the rotary cutter body 1 can rotatably cut the paint on the sampling part. The rotary cutter body 1 is put on a part to be sampled, the rotary cutter body 1 is rotated downwards and forwards with proper force by taking the point of the conical tip as a supporting point, and a paint sample with complete layers and large relative block type can be cut off in a rotary manner. The paint physical evidence sampler of this implementation easy operation, it is low to operation sampling personnel sampling skill and strength requirement.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A paint evidence sampler, comprising:

the rotary cutter body is used for scraping paint;

the supporting column is used for positioning and supporting;

the rotary cutter body, the support column and the handle form a whole.

2. The paint evidence sampler of claim 1 wherein the rotary cutter body is a cylinder having a cutting edge at the bottom.

3. The paint evidence sampler of claim 2 wherein the edge face of the blade is an arcuate face that is concave towards the interior of the cylinder.

4. The paint evidence sampler of claim 2 wherein the edge face base of the blade edge is a straight edge or an inwardly concave arcuate edge.

5. The paint evidence sampler of claim 2 wherein a proximal edge of a side of the bottom surface of the rotating cutter body adjacent to the support post is shorter in length than a distal edge of the bottom surface of the rotating cutter body away from the support post.

6. The paint evidence sampler of claim 2 wherein the bottom surface of the rotary cutter body is perpendicular to the side surfaces.

7. The paint evidence sampler of claim 2 wherein the bottom surface of the rotary cutter body is a beveled surface and the side surface opposite the cutting edge surface of the cutting edge has an obtuse angle.

8. The paint evidence sampler of claim 2 wherein the edge face of the blade is a bevel that makes an acute angle with the bottom surface of the column.

9. The paint evidence sampler of claim 1 wherein the support column has a cylindrical upper portion and a conical lower portion, the apex of the bottom of the cone being the location support point.

10. The paint evidence sampler of claim 1 further comprising a case sleeve disposed outside the rotary cutter body and the support post for protecting the rotary cutter body and the support post.