Shooting residue collecting device

Abstract

The utility model discloses a shooting residue collecting device, and relates to the technical field of gun barrel collection, the shooting residue collecting device comprises a movable rod and a storage assembly, the outer part of the movable rod is provided with a supporting assembly used for fixing the device, the outer part of the movable rod is provided with an overturning assembly used for collecting samples, and the supporting assembly comprises a plunger. According to the shooting residue collecting device, the supporting assembly is stuffed into the gun barrel, at the moment, the supporting plate can make contact with the inner wall of the gun barrel, the end of the gun barrel extrudes the inclined face part of the supporting plate along with deep penetration of the supporting plate, and therefore the supporting plate is shrunk inwards, and under the action of the spring, the supporting plate is tightly attached to the inner wall of the gun barrel, and the shooting residues are collected. Meanwhile, the supporting plate further plays a role in guiding the device to be plugged into the gun barrel, so that the sampling stick is located at the axis of the gun barrel, and the sampling stick is prevented from being in contact with the inner wall of the gun barrel in a non-sampling area.

Description

Technical Field

[0001] The utility model relates to the technical field of barrel collection, in particular to a shooting residue collection device. Background Art

[0002] As trace substances discharged from a firearm along with the bullet and cartridge case, shooting residues will objectively adhere to parts such as the shooter, suspect, target object, and firearm. Shooting residues have characteristics such as universality, potentiality, and difficulty in destruction, and it is very difficult for a suspect to completely eliminate the shooting traces left due to the existence of shooting residues.

[0003] In the prior art, as disclosed in Chinese Patent No.: CN213812907U, a sampling device for extracting shooting residues in a barrel is disclosed. It includes a telescopic handle, a ball head support, and a ball head. The ball head support is arranged at one end of the telescopic handle, and the ball head support rotates around the telescopic handle within a range of -90° to 90°; a curved groove for accommodating the ball head is arranged on the ball head support, the ball head is arranged in the curved groove, and the ball head can rotate in the curved groove; a conductive film is arranged at the top of the ball head. This utility model can extend into the barrel interior and extract the shooting residues inside the barrel, and the extraction effect is good.

[0004] Although the device in the above patent can extend into the barrel interior and extract the shooting residues inside the barrel, however, when sampling, it is difficult to fix in the barrel, so that when the sampling head is inserted into or taken out of the barrel, it is easy to touch non-target sampling parts on the inner wall of the barrel, thus resulting in sample deviation or error. For this reason, the utility model provides a shooting residue collection device. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a shooting residue collection device, which solves the problems.

[0006] To achieve the above objectives, the utility model is realized through the following technical solutions: A shooting residue collection device includes a movable rod and a storage component. A support component is arranged outside the movable rod for fixing the device, and a flipping component is arranged outside the movable rod for collecting samples. The support component includes a plug column, four rectangular grooves are formed on the outer wall of the plug column, a plurality of limit telescopic rods are fixedly installed on the inner wall of the rectangular groove, a spring is sleeved outside the limit telescopic rod, and a support plate is fixedly connected between the end of the limit telescopic rod and the spring. The flipping component includes a rotating shaft, a worm is fixedly connected to the left end of the rotating shaft, and a worm gear is meshed on the outer surface of the worm.

[0007] Preferably, a sliding hole is formed in the right end of the plug column, a limiting groove is formed in the left end of the plug column, the limiting groove communicates with the sliding hole, a limiting plate is fixedly sleeved on the outer wall of the plug column near the right end, and angle scale lines are arranged on the right end of the plug column.

[0008] Preferably, a limiting block is fixedly connected to the left end of the movable rod, the movable rod is movably arranged in the inner wall of the sliding hole, the limiting block is matched with the limiting groove, depth scale lines are arranged on the outer surface of the movable rod, the depth scale lines are used in cooperation with the right end face of the plug column, a reference line is arranged on the outer surface of the movable rod away from the depth scale lines, and the reference line is used in cooperation with the angle scale lines.

[0009] Preferably, a first cylindrical hole is formed through the end of the movable rod, a second cylindrical hole is formed through the outer surface of the limiting block, and the first cylindrical hole communicates with the second cylindrical hole.

[0010] Preferably, the rotating shaft is rotatably arranged in the first cylindrical hole and the second cylindrical hole, a knob is fixedly connected to the right end of the rotating shaft, the flipping assembly further includes two fixing plates fixedly installed on the left surface of the limiting block, a connecting shaft is rotatably connected between the two fixing plates, a rotating seat is fixedly connected to the outer surface of the connecting shaft, a worm gear is fixedly connected to the outer surface of the connecting shaft near the middle, and a plug hole is formed in the left end of the rotating seat.

[0011] Preferably, the storage assembly includes a storage cylinder, an end cover is threadedly connected to the inner wall of the storage cylinder near the top, and a sampling stick is breakably connected to the bottom end of the end cover.

[0012] Beneficial effects

[0013] The utility model provides a shooting residue collection device. Compared with the prior art, the following

[0014] Beneficial effects are achieved:

[0015] (1). For this shooting residue collection device, by inserting the support assembly into the barrel, at this time, the support plate will contact the inner wall of the barrel, and as the support plate goes deeper, the end of the barrel presses the inclined surface part of the support plate, so that the support plate contracts inward, and under the action of the spring, the support plate tightly fits with the inner wall of the barrel, thus playing a role in stabilizing the device. At the same time, the support plate also plays a guiding role for the device to be inserted into the barrel, making the sampling stick located at the axis of the barrel and avoiding the sampling stick from contacting the inner wall of the barrel in the non-sampling area.

[0016] (2) The shooting residue collection device facilitates the protection and transportation of samples by pulling the sampling stick out of the plug hole and placing it in the storage cylinder. During sampling, by rotating the movable rod and observing the relative positions of the reference line and the angle scale line, the sampling area of the sampling stick at different angles in the barrel can be accurately adjusted, improving the accuracy of sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional external view schematic diagram of the present utility model;

[0018] Figure 2 is a three-dimensional external view schematic diagram of another angle of the present utility model;

[0019] Figure 3 is a three-dimensional external view schematic diagram of the support assembly of the present utility model;

[0020] Figure 4 is an unfolded view of a part of the structure of the present utility model;

[0021] Figure 5 is a three-dimensional external view schematic diagram of the storage assembly of the present utility model.

[0022] In the figure: 1. Movable rod; 11. First cylindrical hole; 12. Depth scale line; 13. Reference line; 14. Limit block; 15. Second cylindrical hole; 2. Support assembly; 21. Plug column; 22. Rectangular groove; 23. Limit telescopic rod; 24. Spring; 25. Support plate; 26. Slide hole; 27. Limit plate; 28. Angle scale line; 29. Limit groove; 3. Flip assembly; 31. Rotating shaft; 32. Knob; 33. Worm; 34. Fixed plate; 35. Connecting shaft; 36. Rotating seat; 37. Worm gear; 38. Plug hole; 4. Storage assembly; 41. Storage cylinder; 42. End cover; 43. Sampling stick. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] The present utility model provides two technical solutions:

[0025] Figures 1 - 5The first embodiment is shown: A gunshot residue collection device includes a movable rod 1 and a storage assembly 4. A support assembly 2 is provided outside the movable rod 1 for fixing the device, and a flipping assembly 3 is provided outside the movable rod 1 for collecting samples. The support assembly 2 includes a plug post 21. Four rectangular grooves 22 are formed on the outer wall of the plug post 21. The rectangular grooves 22 can accommodate the support plate 25 to avoid interference between the support plate 25 and the plug post 21. A plurality of limit telescopic rods 23 are fixedly installed on the inner wall of the rectangular groove 22. The limit telescopic rods 23 are provided to limit the support plate 25. A spring 24 is sleeved outside the limit telescopic rod 23. A support plate 25 is fixedly connected between the end of the limit telescopic rod 23 and the spring 24. The flipping assembly 3 includes a rotating shaft 31. A worm 33 is fixedly connected to the left end of the rotating shaft 31. A worm gear 37 is engaged with the outer surface of the worm 33. A sliding hole 26 is formed at the right end of the plug post 21. A limit groove 29 is formed at the left end of the plug post 21. By providing the cooperation of the limit groove 29 and the limit block 14, it can be avoided that the movable rod 1 moves leftward beyond the limit, resulting in the sampling stick 43 entering the sliding hole 26. The limit groove 29 is communicated with the sliding hole 26. A limit plate 27 is fixedly sleeved on the outer wall of the plug post 21 near the right end. By contacting the end of the barrel through the limit plate 27, the device can be limited to avoid the support plate 25 being inserted too deep and affecting the sampling accuracy. Angle scale lines 28 are provided at the right end of the plug post 21.

[0026] By inserting the support assembly 2 into the barrel, at this time, the support plate 25 will contact the inner wall of the barrel. As the support plate 25 goes deeper, the end of the barrel presses the inclined surface part of the support plate 25, so that the support plate 25 contracts inward. And under the action of the spring 24, the support plate 25 tightly fits with the inner wall of the barrel, thus playing a role in stabilizing the device. At the same time, the support plate 25 also plays a guiding role for the device to be inserted into the barrel, making the sampling stick 43 located at the axis of the barrel and avoiding the sampling stick 43 contacting the inner wall of the barrel in the non-sampling area.

[0027] Figures 1 - 5The second implementation manner is shown. The main difference from the first implementation manner is that a limit block 14 is fixedly connected to the left end of the movable rod 1. The movable rod 1 is movably arranged in the inner wall of the sliding hole 26. The limit block 14 is matched with the limit groove 29. A depth scale line 12 is arranged on the outer surface of the movable rod 1. The depth scale line 12 is used in cooperation with the right end face of the plug post 21. A reference line 13 is arranged at a position on the outer surface of the movable rod 1 away from the depth scale line 12. The reference line 13 is used in cooperation with the angle scale line 28. A first cylindrical hole 11 is formed through the end of the movable rod 1. A second cylindrical hole 15 is formed through the outer surface of the limit block 14. The first cylindrical hole 11 is communicated with the second cylindrical hole 15. A rotating shaft 31 is rotatably arranged in the first cylindrical hole 11 and the second cylindrical hole 15. A knob 32 is fixedly connected to the right end of the rotating shaft 31. The flipping assembly 3 further includes two fixing plates 34 fixedly installed on the left surface of the limit block 14. A connecting shaft 35 is rotatably connected between the two fixing plates 34. A rotating seat 36 is fixedly connected to the outer surface of the connecting shaft 35. A worm gear 37 is fixedly connected to the outer surface of the connecting shaft 35 near the middle position. A plug hole 38 is formed at the left end of the rotating seat 36. The storage assembly 4 includes a storage cylinder 41. A end cover 42 is threadedly connected to the inner wall of the storage cylinder 41 near the top. A sampling stick 43 is breakably connected to the bottom end of the end cover 42.

[0028] Pull the sampling stick 43 out of the plug hole 38 and place it in the storage cylinder 41, so as to facilitate the protection and transportation of the sample. During sampling, by rotating the movable rod 1 and observing the relative position between the reference line 13 and the angle scale line 28, the sampling area of the sampling stick 43 at different angles in the gun barrel can be accurately adjusted, improving the accuracy of sampling.

[0029] At the same time, the content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0030] In use, unscrew the end cap 42 from the storage cylinder 41, break off the sampling stick 43 from the end cap 42, insert the sampling stick 43 into the plug hole 38, and then insert the support assembly 2 into the barrel. At this time, the support plate 25 will contact the inner wall of the barrel. As the support plate 25 goes deeper, the end of the barrel presses against the inclined surface of the support plate 25, causing the support plate 25 to contract inward. And under the action of the spring 24, the support plate 25 closely fits the inner wall of the barrel, thus playing a role in stabilizing the device. At the same time, the support plate 25 also serves as a guide for inserting the device into the barrel, making the sampling stick 43 located at the axis of the barrel to avoid the sampling stick 43 contacting the inner wall of the barrel in the non-sampling area. Then, by pushing the movable rod 1 to move inward into the barrel, the sampling stick 43 moves inward, and the position of the sampling stick 43 is judged by observing the depth scale line 12. When the sampling stick 43 reaches the sampling area, turn the knob 32 to drive the rotating shaft 31 and the worm 33 to rotate. When the worm 33 rotates, it drives the worm wheel 37 and the connecting shaft 35 to rotate in sequence. When the connecting shaft 35 rotates, the rotating seat 36 fixedly connected to the surface of the connecting shaft 35 rotates, so that the inclination angle of the sampling stick 43 can be changed. When the sampler feels that the knob 32 cannot be turned, at this time the sampling stick 43 contacts the inner wall of the barrel, so that the sample in the barrel adheres to the collection head of the sampling stick 43. Then, turn the knob 32 to reset the sampling stick 43, and then directly take out the device from the barrel. Finally, pull out the sampling stick 43 from the plug hole 38 and put it into the storage cylinder 41, which is convenient for protecting and transporting the sample. During sampling, by rotating the movable rod 1 and observing the relative position of the reference line 13 and the angle scale line 28, the sampling area of the sampling stick 43 at different angles in the barrel can be accurately adjusted, improving the sampling accuracy.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shooting residue collection device, comprising a movable rod (1) and a storage assembly (4), characterized in that: The movable rod (1) is provided with a support assembly (2) on the outside for fixing the device, and the movable rod (1) is provided with a flip assembly (3) on the outside for collecting samples; The support assembly (2) comprises a plug (21), the outer wall of the plug (21) is provided with four rectangular grooves (22), the inner wall of the rectangular groove (22) is fixedly provided with a plurality of position-limiting telescopic rods (23), the outer part of the position-limiting telescopic rod (23) is sleeved with a spring (24), and a support plate (25) is fixedly connected between the end of the position-limiting telescopic rod (23) and the spring (24); The turnover assembly (3) comprises a rotating shaft (31), the left end of which is fixedly connected to a worm (33), and the outer surface of the worm (33) is meshed with a worm wheel (37).

2. A shooting residue collection device according to claim 1, characterized in that: A sliding hole (26) is provided at the right end of the plug (21), a limiting groove (29) is provided at the left end of the plug (21), the limiting groove (29) is communicated with the sliding hole (26), a limiting plate (27) is fixedly sleeved on the outer wall of the plug (21) near the right end, and an angle scale line (28) is provided at the right end of the plug (21).

3. A shooting residue collection device according to claim 2, characterized in that: The left end of the movable rod (1) is fixedly connected to a limiting block (14); the movable rod (1) is movably arranged in the inner wall of the sliding hole (26); the limiting block (14) cooperates with the limiting groove (29); the outer surface of the movable rod (1) is provided with a depth scale line (12); the depth scale line (12) is used in conjunction with the right end surface of the plug (21); the outer surface of the movable rod (1) is provided with a reference line (13) at a position away from the depth scale line (12); the reference line (13) is used in conjunction with the angle scale line (28).

4. A shooting residue collection device according to claim 3, characterized in that: A first cylindrical hole (11) is formed through the end of the movable rod (1), and a second cylindrical hole (15) is formed through the outer surface of the limit block (14); the first cylindrical hole (11) is in communication with the second cylindrical hole (15).

5. The shooting residue collection device according to claim 4, characterized in that: The rotating shaft (31) is rotatably arranged in the first cylindrical hole (11) and the second cylindrical hole (15); the right end of the rotating shaft (31) is fixedly connected to a knob (32); the flip assembly (3) further comprises two fixed plates (34) fixedly mounted on the left surface of the limit block (14); a connecting shaft (35) is rotatably connected between the two fixed plates (34); the outer surface of the connecting shaft (35) is fixedly connected to a rotating seat (36); the outer surface of the connecting shaft (35) is fixedly connected to a worm gear (37) near the middle; and a plug hole (38) is provided at the left end of the rotating seat (36).

6. The shooting residue collection device according to claim 1, characterized in that: The storage assembly (4) comprises a storage tube (41), an inner wall of the storage tube (41) is threadedly connected to an end cap (42) near the top, and the bottom end of the end cap (42) is breakable and connected to a sampling swab (43).

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