Ballistic trajectory restoring device based on bullet trace detection
By combining an adaptive clamping system and a lifting mechanism, the problems of secondary indentation and attitude adjustment of the projectile fixing device during the testing process are solved, achieving non-destructive clamping and accurate testing, and improving the efficiency and accuracy of projectile testing.
Patent Information
- Application Number
- CN202520746548.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-21
AI Technical Summary
Existing projectile fixing devices are prone to creating secondary indentations on the projectile surface, damaging the rifling marks, and lack projectile attitude adjustment functions, resulting in low detection efficiency and large errors, making it difficult to ensure the accuracy of detection results.
An adaptive clamping system is adopted, which uses rubber pads and springs to form a flexible clamp, combined with a lifting mechanism and rotating parts to ensure the stable fixation of the warhead, and adjusts the detection position through motor drive to avoid repeated positioning.
It achieves non-destructive clamping, improves detection efficiency, reduces detection errors, and ensures the integrity and accuracy of detection results.
Smart Images
Figure CN223910159U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to trace detection technical field especially, relates to a trajectory of ballistic trajectory reduction device based on bullet trace detection. BACKGROUND
[0002] In the criminal investigation field, the ballistic trajectory analysis as the core technical means of the gun case material evidence identification, its accuracy is directly related to the effectiveness of crime scene reconstruction and gun tracing, when carrying out trajectory reduction operation, need to fix the bullet on the placing table, and with the aid of microscope visual observation combines manual measuring tool to detect bullet, but the existing bullet fixing device adopts rigid clamp, and the metal contact surface can form secondary indentation on the bullet surface, damage the bullet rifling trace, since the bullet trace can be linear structure, need to rotate the bullet, adjust it to the appropriate detection position, but the conventional equipment lacks bullet posture adjustment function, needs to repeatedly disassemble the bullet to obtain different angle trace data when detecting, so it can influence bullet detection efficiency, and repeated positioning can increase the detection error, it is difficult to ensure the accuracy of detection result.
[0003] In view of the above problem, a trajectory of ballistic trajectory reduction device based on bullet trace detection is developed. CONTENT OF UTILITY MODEL
[0004] In order to overcome the shortcomings that the metal contact surface in the existing bullet fixing device can form secondary indentation on the bullet surface, damage the bullet rifling trace, and the conventional equipment lacks bullet posture adjustment function, needs to repeatedly disassemble the bullet to obtain different angle trace data when detecting, can influence bullet detection efficiency, and repeated positioning can increase the detection error, it is difficult to ensure the accuracy of detection result, the utility model provides a trajectory of ballistic trajectory reduction device based on bullet trace detection.
[0005] The technical scheme of the utility model comprises the following:
[0006] The application discloses a trajectory restoring device based on bullet trace detection, which comprises a mounting plate, a mounting frame connected to the upper side of the rear part of the mounting plate, a viewer mounted on the mounting frame, a supporting assembly mounted on the mounting plate, the supporting assembly comprising a lead screw, the lead screw being rotatably connected to the middle part of the mounting plate, a placing piece threadedly connected to the lead screw, a guide piece connected to the front part of the mounting plate, the guide piece being slidably connected with the placing piece, a clamping mechanism arranged on the mounting plate, the clamping mechanism comprising a mounting piece, the mounting piece being connected to the upper sides of the left and right parts of the mounting plate, mounting blocks connected to the outer sides of the mounting pieces, a first clamping piece movably connected to the mounting block on the right side, a first spring connected between the first clamping piece and the adjacent mounting block, the first clamping piece being movably connected with the adjacent mounting piece, a gasket connected to the left side of the first clamping piece, a second clamping piece slidably connected to the mounting block on the left side, a second spring connected between the second clamping piece and the adjacent mounting block, the second clamping piece being slidably connected with the adjacent mounting piece, and a rotating piece rotatably connected to the right side of the second clamping piece, the rotating piece also being connected with a gasket.
[0007] In addition, it is particularly preferred that the device further comprises a lifting mechanism, the lifting mechanism comprising a driving motor, the driving motor being mounted on the upper side of the middle part of the mounting plate, and a main gear being connected to the output shaft of the driving motor, and a from gear being connected to the lower part of the lead screw, the from gear being engaged with the main gear.
[0008] In addition, it is particularly preferred that the middle part of the placing piece is in an arc shape which is suitable for the bullet.
[0009] In addition, it is particularly preferred that the first clamping piece is provided with anti-skid lines.
[0010] In addition, it is particularly preferred that the second clamping piece is provided with a power-assisted piece.
[0011] In addition, it is particularly preferred that the gaskets are made of rubber, which can enhance the friction and ensure the clamping effect, and can avoid the abrasion caused by the direct contact between the bullet and the hard material.
[0012] By adopting the above technical scheme, the device has the following advantages:
[0013] The utility model discloses a clamping mechanism utilizes the mutual cooperation of first clamping piece, second clamping piece, first spring and second spring, forms the self -adaptation clamping system, and the left and right symmetrical rubber gasket forms the flexible clamping structure, and the stability of the bullet is fixed, and the rubber material realizes the contact non - destructive clamping, effectively avoids the secondary trace pollution, and simultaneously lifting mechanism drives the vertical motion of placing piece, and rotates first clamping piece, makes the detection position get the adjustment, thereby ensuring the bullet detection integrity, effectively improve the detection efficiency, and dispense with the repeated positioning operation, effectively reduce the detection error. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.
[0015] Figure 2 It is the partial section three-dimensional structure schematic diagram of the clamping mechanism of the utility model.
[0016] Figure 3 It is the partial section three-dimensional structure schematic diagram of the lifting mechanism of the utility model.
[0017] Among them, the above-mentioned drawing includes the following sign: 1, mounting frame, 2, viewer, 3, mounting plate, 4, support assembly, 41, placing piece, 42, guide piece, 43, screw rod, 5, clamping mechanism, 51, mounting piece, 52, mounting block, 53, first clamping piece, 54, first spring, 55, gasket, 56, second clamping piece, 57, second spring, 58, rotating piece, 6, lifting mechanism, 61, drive motor, 62, main gear, 63, from the gear. DETAILED DESCRIPTION
[0018] The technical scheme in the embodiments of the utility model will be described below in conjunction with the drawings in the embodiments of the utility model clearly and completely, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.
[0019] A ballistic trajectory restoration device based on bullet trace detection, as shown in Figure 1 And Figure 2 It includes mounting plate 3, the upper side of the rear part of mounting plate 3 is connected with mounting frame 1, mounting frame 1 is installed with viewer 2, mounting plate 3 is installed with support assembly 4, and support assembly 4 includes screw rod 43, screw rod 43 is rotatably connected in the middle part of mounting plate 3, and placing piece 41 is threadedly connected on screw rod 43, mounting plate 3 front part is connected with guide piece 42, guide piece 42 is slidably connected with placing piece 41, the middle part of placing piece 41 is arc-shaped structure that is attached to bullet, and mounting plate 3 is provided with clamping mechanism 5;
[0020] The clamping mechanism 5 comprises a mounting piece 51, the mounting piece 51 is connected to the upper side of the left and right two parts of the mounting plate 3, the outer side of the mounting piece 51 is connected with a mounting block 52, the first clamping piece 53 is movably connected to the mounting block 52 on the right side, the first clamping piece 53 is provided with anti-skid lines, the first clamping piece 53 and the adjacent mounting block 52 are connected with the first spring 54, the first clamping piece 53 and the adjacent mounting piece 51 are movably connected, the first clamping piece 53 is connected with a gasket 55 on the left side, the second clamping piece 56 is slidably connected to the mounting block 52 on the left side, the second clamping piece 56 is provided with a booster, the second clamping piece 56 and the adjacent mounting block 52 are connected with the second spring 57, the second clamping piece 56 and the adjacent mounting piece 51 are slidably connected, the rotating piece 58 is rotatably connected to the right side of the second clamping piece 56, and the rotating piece 58 is also connected with a gasket 55 on the right side. The gasket 55 is made of rubber material, which can enhance the friction and ensure the clamping effect, and can also avoid the abrasion caused by the direct contact between the bullet and the hard material.
[0021] As shown in Figure 1 and Figure 3 It also comprises a lifting mechanism 6, the lifting mechanism 6 comprises a driving motor 61, the driving motor 61 is also installed on the upper side of the middle part of the mounting plate 3, the output shaft of the driving motor 61 is connected with a main gear 62, and the lower part of the lead screw 43 is connected with a from gear 63. The from gear 63 is engaged with the main gear 62.
[0022] It should be noted that in the process of criminal investigation of firearms, the bullet trace detection is an important technical means to restore the trajectory, and when using the device to restore the operation, first pull the second clamping piece 56 outward, the second spring 57 is compressed, the rotating piece 58 is driven to move outward, leaving space for the bullet placement, then the bullet is placed on the placement piece 41, the upper part of the placement piece 41 is arc-shaped structure, which can fit the surface of the bullet, so that the bullet is more stable during placement, then the second clamping piece 56 is loosened, the second clamping piece 56 is reset to the right, until the left gasket 55 contacts with the bullet and pushes the bullet to move to the right. In this process, the bullet will contact with the gasket 55 on the right side, so that the first clamping piece 53 slides to the right, the first spring 54 is compressed, under the reaction force of the first spring 54 and the second spring 57, the first clamping piece 53 and the second clamping piece 56 clamp the bullet, forming a self-adaptive clamping system. The rubber material of the gasket 55 can enhance the friction and ensure the clamping effect, and can also avoid the abrasion caused by the direct contact between the bullet and the hard material.
[0023] Subsequently, the operator detects the upper bullet mark through the viewer 2. Since the bullet mark is a linear structure, it is necessary to rotate the bullet for multi-directional detection. Before rotating the bullet to adjust the detection position, it is necessary to first lower the placing piece 41 to avoid friction between the bullet and the placing piece 41 during the rotation of the bullet, which causes wear on the surface of the bullet and affects the accuracy of the detection data. The driving motor 61 is started, the output shaft of the driving motor 61 rotates to drive the main gear 62 to rotate, and then the follower gear 63 and the lead screw 43 are sequentially rotated, so that the placing piece 41 slides downward under the guidance of the guide piece 42 until the placing piece 41 is separated from the bullet supporting state. Then, rotating the first clamping piece 53 will make the right gasket 55 rotate in the same direction, and then the bullet can be rotated to the appropriate detection position, and the bullet will drive the left gasket 55 and the rotating piece 58 to rotate in the same direction, keeping the consistency of the rotating direction. Then, the driving motor 61 is started again to lift the placing piece 41 to the initial height, so that the placing piece 41 supports the bullet again. Then, the viewer 2 observes the rifling marks, scratches, and indentations on the surface of the bullet, and inputs the on-site data into the ballistic analysis software to generate a visual model of the ballistic trajectory, providing accurate information for gun crime investigation.
[0024] The above is only an embodiment of the present application and is not intended to limit the present application. Any equivalent replacement within the principles of the present application shall be included in the protection scope of the present application. The contents not described in detail in the present application are the existing technology known to those skilled in the art.
Claims
1. A ballistic trajectory reconstruction device based on bullet mark detection, characterized by: The utility model provides an installation plate (3), the installation frame (1) is connected on the rear upper side of installation plate (3), the viewer (2) is installed on the installation frame (1), the support assembly (4) is installed on the installation plate (3), the support assembly (4) includes the screw rod (43), the screw rod (43) is rotatably connected in the middle part of installation plate (3), the placing piece (41) is threadedly connected on the screw rod (43), the guide piece (42) is connected on the front of installation plate (3), the guide piece (42) is slidably connected with the placing piece (41), the clamping mechanism (5) is arranged on the installation plate (3), the clamping mechanism (5) includes the mounting piece (51), the mounting piece (51) is connected on the upper side of both sides of installation plate (3), the mounting block (52) is connected on the outside of mounting piece (51), the first clamping piece (53) is movably connected on the mounting block (52) of right side, the first spring (54) is connected between the first clamping piece (53) and adjacent mounting block (52), the first clamping piece (53) is movably connected with adjacent mounting piece (51), the gasket (55) is connected on the left side of first clamping piece (53), the second clamping piece (56) is slidably connected on the mounting block (52) of left side, the second spring (57) is connected between the second clamping piece (56) and adjacent mounting block (52), the second clamping piece (56) is slidably connected with adjacent mounting piece (51), the rotating piece (58) is rotatably connected on the right side of second clamping piece (56), the gasket (55) is also connected on the right side of rotating piece (58).
2. A ballistic trajectory reconstruction device based on bullet mark detection as claimed in claim 1, wherein: Also include lifting mechanism (6), the lifting mechanism (6) includes the drive motor (61), the drive motor (61) is also installed on the upper side of middle part of installation plate (3), the main gear (62) is connected on the output shaft of drive motor (61), the from gear (63) is connected on the lower part of screw rod (43), the from gear (63) is engaged with main gear (62).
3. The bullet trajectory reconstruction device based on bullet mark detection of claim 1, wherein: The middle part of placing piece (41) is the arc structure that fits bullet.
4. The bullet trajectory reconstruction device based on bullet mark detection of claim 1, wherein: Anti -skid lines are arranged on the first clamping piece (53).
5. The bullet trajectory reconstruction device based on bullet mark detection of claim 1, wherein: The second clamping piece (56) is provided with a booster.
6. The bullet trajectory reconstruction device based on bullet mark detection of claim 1, wherein: The gasket (55) is all rubber material, can enhance friction, ensure clamping effect, can avoid bullet and hard material direct contact and lead to abrasion simultaneously.