A delivery device for bullet mark detection

Abstract

The application relates to the technical field of trace detection, in particular to a conveying device for bullet trace detection, which comprises a bottom plate and a bottom frame welded on the bottom plate, a buckle cover structure is arranged above the bottom plate, the buckle cover structure is buckled on a top plate through an irreversible buckle, the inner side of the bottom frame is provided with uniformly-arranged bearing sheets, the inner side of the buckle cover structure is provided with pressing sheets matched with the bearing sheets, and the bearing sheets and the pressing sheets are in clearance fit at the end portions. According to the scheme, the two buckling structures are reversibly buckled with each other, so that the bullets placed in the device cannot be maliciously exchanged, meanwhile, the bearing sheets and the pressing sheets are arranged in the bottom frame and the top frame of the buckling structure respectively, the flexible structures of the two are utilized, the position of the bullets is stabilized, the scratches caused by transportation can be avoided, and the transportation safety is improved.

Description

Technical Field

[0001] This application relates to the technical field of trace detection, and in particular to a conveying device for detecting traces on projectiles. Background Technology

[0002] Bullet and ammunition trace examination is a criminal investigation technique used to solve gun-related cases. Currently, bullet surface trace measurement uses digital photography to obtain image data of the bullet, and then computer image processing, feature extraction, and identification of the bullet's identity are performed.

[0003] This application discovers that when acquiring projectile image data, the projectile is exposed. Therefore, if an external object impacts the projectile, it can easily cause trace damage, affecting the results of trace detection. To address this problem, this application provides a conveying device for projectile trace detection. Utility Model Content

[0004] To address the aforementioned problems, this application provides a conveying device for detecting bullet traces.

[0005] This application provides a conveying device for detecting bullet traces, including a base plate and a bottom frame welded to the base plate. A cover structure is provided above the base plate, and the cover structure is fastened to the top plate by an irreversible snap. The inner side of the bottom frame is provided with evenly arranged bearing plates, and the inner side of the cover structure is provided with pressing plates that are adapted to the bearing plates. The ends of the bearing plates and the ends of the pressing plates are fitted with a clearance.

[0006] By setting up two interlocking and irreversible fastening structures, the projectile placed inside cannot be maliciously switched. At the same time, the bottom frame and top frame of the fastening structure are respectively equipped with a bearing plate and a pressing plate. The flexible structure of both can stabilize the position of the projectile and prevent scratches caused by transportation, thereby improving transportation safety.

[0007] Preferably, both the support sheet and the pressing sheet are made of sponge material.

[0008] Preferably, the middle section of the bearing plate group is recessed.

[0009] Preferably, the middle section of the pressing piece protrudes downwards, similar to the concave shape of the support piece.

[0010] Preferably, the cover structure includes a top plate, and a top frame that fits with the bottom frame below the top plate, with the two overlapping in the vertical direction when the cover is closed.

[0011] Preferably, a card is vertically welded below the corner of the top plate, and a snap-fit ​​end is provided at the bottom of the card.

[0012] Preferably, a through hole is provided on the base plate, and a buckle is provided in the through hole, with the buckle and the buckle end of the card being fitted together.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] By setting up two interlocking and irreversible fastening structures, the projectile placed inside cannot be maliciously switched. At the same time, the bottom frame and top frame of the fastening structure are respectively equipped with a bearing plate and a pressing plate. The flexible structure of both can stabilize the position of the projectile and prevent scratches caused by transportation, thereby improving transportation safety. Attached Figure Description

[0015] Figure 1 It is the isometric drawing in Embodiment 1 of this application;

[0016] Figure 2 This is the bottom-view isometric drawing from Embodiment 1 of this application;

[0017] Figure 3 This is a diagram of the bottom trench structure in Embodiment 1 of this application;

[0018] Figure 4 This is a diagram of the top cover structure in Embodiment 1 of this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. Through hole; 12. Fastener block; 2. Top plate; 3. Bottom frame; 4. Top frame; 5. Card; 51. Snap-on end; 6. Support plate; 7. Pressing plate. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0021] Example 1:

[0022] A transport device for detecting bullet traces, as shown in the reference. Figure 1 - Figure 4 The base plate 1 and the bottom frame 3 welded to the base plate 1 are provided. A cover structure is provided on the top plate 2. The cover structure is fastened to the top plate 2 by irreversible snap fasteners. The inner side of the bottom frame 3 is provided with evenly arranged bearing plates 6. The inner side of the cover structure is provided with pressing plates 7 that are adapted to the bearing plates 6. The ends of the bearing plates 6 and the ends of the pressing plates 7 are fitted with a clearance.

[0023] By setting up two interlocking and irreversible fastening structures, the projectile placed inside will not be maliciously switched. At the same time, the bottom frame 3 and top frame 4 of the fastening structure are respectively equipped with a bearing plate 6 and a pressing plate 7. The flexible structure of the two can stabilize the position of the projectile while avoiding scratches caused by transportation, thereby improving transportation safety.

[0024] Both the support plate 6 and the pressing plate 7 are made of sponge. The middle section of the support plate 6 is recessed. The middle section of the pressing plate 7 is convex, similar to the recessed design of the support plate 6. The purpose of the recessed and convex structures of the support plate 6 and the pressing plate 7 is to position the projectile and ensure its stability in the middle position.

[0025] The cover structure includes a top plate 2, and a top frame 4 that fits with the bottom frame 3 with a gap is provided below the top plate 2. The two are vertically aligned when the cover is closed.

[0026] A card 5 is vertically welded below the corner of the top plate 2, and a buckle end 51 is provided at the bottom of the card 5.

[0027] A through hole 11 is provided on the base plate 1, and a buckle 12 is provided in the through hole 11. The buckle 12 and the buckle end 51 of the card 5 are fitted together. The bottom end of the buckle end 51 is provided with a slope, and the top end of the buckle 12 is also a slope structure. When the two are fitted together, they can slide along the slope direction, thereby completing the irreversible connection between the buckle end 51 and the buckle 12.

[0028] The foregoing description, with reference to preferred embodiments, illustrates an exemplary implementation of a transport device for detecting bullet traces provided by this disclosure. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, the protection scope of which is determined by the appended claims.

Claims

1. A conveying device for detecting bullet traces, comprising a base plate (1) and a base frame (3) welded to the base plate (1), characterized in that: A cover structure is provided above the base plate (1). The cover structure is fastened to the top plate (2) by an irreversible snap fastener. The inner side of the bottom frame (3) is provided with evenly arranged support plates (6). The inner side of the cover structure is provided with a pressing plate (7) that is compatible with the support plates (6). The ends of the support plates (6) and the pressing plate (7) are fitted with a gap.

2. The conveying device according to claim 1, characterized in that: Both the support sheet (6) and the pressing sheet (7) are made of sponge material.

3. The conveying device according to claim 2, characterized in that: The middle section of the bearing plate (6) group is recessed.

4. The conveying device according to claim 3, characterized in that: The middle section of the pressing piece (7) is convex, similar to the concave shape of the bearing piece (6).

5. The conveying device according to claim 1, characterized in that: The cover structure includes a top plate (2), and a top frame (4) is provided below the top plate (2) and fits with the bottom frame (3) with a gap. The two are arranged to overlap in the vertical direction when the cover is closed.

6. The conveying device according to claim 5, characterized in that: The card (5) is vertically welded below the corner of the top plate (2), and the bottom end of the card (5) is provided with a buckle end (51).

7. The conveying device according to claim 6, characterized in that: A through hole (11) is provided on the base plate (1), and a buckle (12) is provided in the through hole (11). The buckle (12) and the buckle end (51) of the card (5) are configured to cooperate.

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