High utilization rate of bullet collector resistance and bullet collector

Abstract

The utility model discloses a high utilization rate's bullet collector resistance bullet spare belongs to the gun detection technical field, and its resistance bullet piece adopts sheet elastic material, and the both ends of resistance bullet spare are provided with support piece, the both ends of resistance bullet piece link to form closed loop structure and are set on two support pieces, and the contact surface of support piece and resistance bullet piece is arc surface, and resistance bullet piece is convenient for moving around it, realizes the position adjustment of resistance bullet piece facing the center area of bullet collector, thereby improves the utilization of resistance bullet piece. Compared with prior art, under the same material and same area, the consumable utilization of the utility model improves more than 3 times, and the consumable cost is reduced very well.

Description

Technical Field

[0001] This utility model belongs to the field of firearm detection technology, specifically relating to a high-utilization bullet catcher and bullet catcher. Background Technology

[0002] Before a firearm is documented, various tests are required, including ballistic performance testing. A bullet collector is used during ballistic testing to collect bullets and preserve rifling marks for later comparison. In practical applications, bullet collectors are mostly implemented using multiple layers of elastic materials (such as silicone sheets) combined with a metal backing plate, resulting in a compact structure suitable for indoor environments. For example, the utility model patent CN201438093U, authorized on April 14, 2010, uses a combination of multiple industrial silicone rubber sheets and bulletproof steel plates for bullet collection. Typically, the bullet decelerates to zero after passing through 3-5 layers of elastic material and falls into the collection slot.

[0003] In the prior art, ballistic shields are mostly made of silicone sheets with a hardness (Shore A) of 40~60 and a thickness of 5~20mm. They are detachably clamped and fixed by a clamping frame structure. For example, the invention patent CN109443103B authorized on August 15, 2023, uses a fixing clamp to detachably fix the ballistic shield, which also facilitates the fixing of the ballistic shield.

[0004] During testing, most projectiles enter through the center of the projectile inlet of the magazine, resulting in the perforations on the silicone pad primarily concentrated in the central area. As testing progresses, the central area of ​​the front silicone pad gradually loses its deceleration effect, necessitating the replacement of the "failed" silicone pad. While the outer periphery of the replaced silicone pad is generally intact, it cannot be reused, leading to a high replacement frequency and consequently high consumable costs. Utility Model Content

[0005] In view of the problems of high replacement frequency and high operating cost of existing bullet catchers, this utility model proposes a bullet catcher component and bullet catcher with high utilization rate.

[0006] This utility model protects a high-utilization projectile catcher with a projectile-catching sheet made of sheet-like elastic material. Supports are provided at both ends of the projectile catcher. The two ends of the projectile catcher are connected to form a closed-loop structure and are sleeved on the two supports. The contact surface between the support and the projectile catcher is arc-shaped, which facilitates the movement of the projectile catcher around it and realizes the position adjustment of the projectile catcher facing the center area of ​​the projectile catcher.

[0007] As a preferred embodiment, the support member includes two fixing members at both ends and a support rod between the two fixing members. The contact surface between the support rod and the ballistic plate is arc-shaped, and the two fixing members extend beyond the ballistic plate.

[0008] As a preferred embodiment, the ballistic arrestor includes a metal frame, and two fasteners are fixed to the metal frame by fasteners.

[0009] As a preferred embodiment, a gasket is provided between the fastener and the metal frame, and the thickness of the gasket is greater than the thickness of the spring-loaded sheet.

[0010] As a preferred embodiment, the metal frame is provided with connecting ears on both sides, and a flange linear bearing is fixed in each of the two connecting ears. The outer dimension of the flange linear bearing is larger than the inner diameter of the connecting ear. The flange linear bearings of all the ballistic arresters are arranged in the same direction. The flange linear bearings on the same side are coaxial to allow two optical axes to pass through. A spring body is provided between adjacent ballistic arresters. The spring body is sleeved on the optical axis and the flange linear bearing.

[0011] As a preferred embodiment, the flange end of the flange linear bearing is provided with a limiting ring with the same outer diameter as the non-flange end; one end of the spring body is sleeved on the non-flange end of a spring-loaded flange linear bearing and abuts against the connecting lug, while the other end abuts against the flange end of the adjacent spring-loaded flange linear bearing, and remains coaxial with the optical axis under the action of the limiting ring.

[0012] As a preferred embodiment, the metal frame is provided with a plurality of limiting members for restricting the movement distance of the ballistic plate along the optical axis.

[0013] As a preferred embodiment, the metal frame is provided with a plurality of abutting members, which pass through the metal frame from the back and abut against the spring-loaded sheet.

[0014] This utility model also protects a projectile collector that includes the above-mentioned projectile catcher and anti-projectile component.

[0015] This invention designs the ballistic arresting material as a ring structure, which can rotate around a support rod and is relatively fixed by a fixing component. During testing, when the ballistic arresting capacity of the central area of ​​the ballistic arresting piece decreases, the ballistic arresting piece can be rotated to adjust its position relative to the center area of ​​the ballistic collector, thereby improving the utilization rate of the ballistic arresting piece. Compared with the prior art, with the same material and area, the utilization rate of the consumables in this invention is increased by more than 3 times, significantly reducing the cost of consumables. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the projectile catcher and anti-projectile component disclosed in Example 1;

[0017] Figure 2 This is a schematic diagram of the explosive structure of the projectile catcher element disclosed in Example 1;

[0018] Figure 3 This is a top view of the projectile catcher and anti-projectile component disclosed in Example 1;

[0019] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle;

[0020] Figure 5 This is a forward-view schematic diagram of the projectile catcher buffer structure disclosed in Example 2;

[0021] Figure 6 This is a rear-view schematic diagram of the bullet catcher buffer structure disclosed in Example 2;

[0022] Figure 7 for Figure 6 Enlarged view of the structure at point B in the middle;

[0023] Figure 8a This is a schematic diagram of the initial state of the spring.

[0024] Figure 8b This is a schematic diagram of the ultimate relative displacement state of a ballistic arrester.

[0025] Figure 9 This is a schematic diagram of the optical axis being fixed. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0027] Example 1

[0028] A high-utilization projectile catcher component, such as Figure 1 As shown, the ballistic plate 1 is made of sheet-like elastic material. Ballistic plates are mainly used to absorb, disperse, or buffer the impact energy of projectiles; therefore, the selection of elastic materials must consider high elasticity, fatigue resistance, tear resistance, and environmental adaptability. Rubber-based materials, polymeric elastic materials, etc., can be selected. This embodiment uses a silicone sheet as the ballistic plate, but this is not a limitation on the selection of ballistic plate materials. Those skilled in the art can choose other elastic materials that meet the application requirements for use in the ballistic components disclosed in this utility model.

[0029] The core technical point of this embodiment is that the two ends of the ballistic resist sheet are connected to form a closed-loop structure, such as... Figure 2 As shown, it is fitted onto the support members 2 located at both ends of the ballistic arrester. See also Figure 1 , Figure 3The contact surface between the support member and the ballistic plate is arc-shaped (see...). Figure 4 This allows the shrapnel 1 to move around it, enabling the shrapnel to be positioned directly opposite the center area of ​​the projectile collector. It can be understood that "both ends" here can refer to... Figure 1-3 The left and right ends can be the top and bottom ends, or even one end and the other end that are set at a certain angle to the horizontal / vertical direction but are opposite each other. As long as the position adjustment of the bullet-stopping plate is able to be directly opposite the center area of ​​the bullet collector, this embodiment does not limit the specific position of the two ends.

[0030] The support component 2 can be implemented in different ways, such as by precision machining and integral forming of 6061 aluminum alloy. 6061 aluminum alloy has advantages such as high strength, lightweight, and good fracture toughness. In this embodiment, considering production costs, the support component 2 includes fixing components 201 at both ends and a support rod 202 between the two fixing components (see...). Figure 2 The support rod 202 is made of stainless steel tube, so that the contact surface between the support rod 202 and the bulletproof plate 1 is arc-shaped.

[0031] The fastener 201 is a precision-machined part. Both ends of the fastener 201 extend outwards from the spring-damping tabs and are fixed to the metal frame 3 by fasteners. (See [reference]). Figure 1 If the fixing member 201 is fixed to the metal frame 3, causing the blast arrestor 1 to be too close to the metal frame 3, it will make it difficult for the blast arrestor to move. A protrusion can be provided on the side of the fixing member 201 facing the metal frame to limit the closeness between the blast arrestor 1 and the metal frame 3; alternatively... Figure 2 As shown, a gasket 203 is provided between the fastener 201 and the metal frame 3. The thickness of the gasket 203 is greater than the thickness of the bulletproof sheet 1 to ensure that there is a gap between the bulletproof sheet 1 and the metal frame 3, so as to avoid them being too close. Figure 2 In the specific solution shown, one gasket is provided on the top and one on the bottom of the gasket 203. However, one gasket can also be provided on each of the four fasteners 201. The solution adopted in this embodiment is more convenient for fixing the gasket.

[0032] When adjusting the position of the shrapnel directly opposite the center area of ​​the projectile collector, the shrapnel needs to be movable. However, during testing, the shrapnel needs to be relatively stable to better absorb the kinetic energy of the projectile. Therefore, in this embodiment, multiple clamping members 303 are provided on the metal frame 3. The clamping members 303 pass through the metal frame 3 from the back and clamp the shrapnel 1. See [reference needed]. Figure 4 .

[0033] During testing, most projectiles enter through the center of the projectile inlet of the collector, resulting in the perforations on the grenades being concentrated primarily in the central area. When the central area of ​​the grenades exhibits a "failure," an external force can be applied to the grenades to rotate them around the supports at both ends, thus adjusting the grenades' position relative to the center of the collector.

[0034] In this embodiment, the support rod 202 is made of stainless steel tubing, so the "rotation" of the blast arrester is mainly done manually by the operator. However, if cost is not a concern, the stainless steel tubing can be replaced with an electric rotating shaft. The two electric rotating shafts tension the annular blast arrester. When the electric rotating shafts at both ends rotate in the same direction, they adjust the position of the blast arrester relative to the center area of ​​the blast collector.

[0035] It should be noted that the adjustment of the ballistic plates between multiple ballistic devices does not need to be performed simultaneously. Staggering the "failure" areas of different ballistic devices can actually improve utilization.

[0036] Example 2

[0037] Most existing projectile catchers only consider absorbing the energy of the projectile through multiple relatively fixed ballistic stops, but using a spring to buffer the impact force on the ballistic stops should also be considered as a viable option.

[0038] Therefore, based on embodiment 1, this embodiment provides connecting ears 301 on both sides of the metal frame 3 (see...). Figure 1 , Figure 2 Each of the two connecting lugs 301 has a flange linear bearing 401 fixed inside it (the flange end of the flange linear bearing 401 is fixed to the connecting lug 301 by fasteners), and the outer flange dimension of the flange linear bearing 401 is larger than the inner diameter dimension of the connecting lug 301.

[0039] See Figure 5 , Figure 6 All the flange linear bearings of the ballistic arrestor are arranged in the same direction. The flange linear bearings on the same side are coaxial, allowing two optical shafts 402 to pass through. A spring body 403 is provided between adjacent ballistic arrestors. The spring body 403 is sleeved on the optical shaft 402 and the flange linear bearing 401.

[0040] To ensure that the compression direction of the spring body is parallel to the optical axis 402 and to prevent the impact force from being dispersed in other directions, the flange end of the flange linear bearing is provided with a limiting ring 4011 with the same outer diameter as the non-flange end. See [link / reference]. Figure 7 The spring body 403 is fitted at one end of the non-flange end of a spring-loaded flange linear bearing, which abuts against the connecting lug 301, and at the other end it abuts against the flange end of the adjacent spring-loaded flange linear bearing, and is kept coaxial with the optical axis 402 under the action of the limiting ring 4011.

[0041] The metal frame 3 is provided with multiple limiting members 302. When the ballistic shield is impacted by a projectile, the ballistic shield absorbs and buffers the energy of the projectile while also compressing the spring body 403 behind it. At this time, the limiting members 302 limit the movement distance of the ballistic shield along the optical axis. Assuming the initial state of the spring body is as follows... Figure 8a As shown, the limiting relative displacement state of the ballistic resistor is as follows: Figure 8b As shown, when the ballistic arrester moves backward to a predetermined limit displacement under the force of the projectile, its limiting member 302 abuts against the fixing member 201 of the ballistic arrester behind it, thereby restricting its further approach to the rear ballistic arrester. Here, "relative displacement" refers to the distance the preceding ballistic arrester moves relative to the following ballistic arrester. "Front" and "rear" are relative to the projectile inlet; closer to the projectile inlet is "front," and farther from the projectile inlet is "rear."

[0042] Example 3

[0043] A projectile catcher includes the projectile catcher blocking component of Embodiment 1 or Embodiment 2. Further elaboration is warranted here: the two ends of the optical axis 402 are respectively fixed to the projectile catcher support frame via flanges. To ensure the stability of the optical axis 402, a support assembly may also be provided in the middle, see [reference needed]. Figure 9 .

[0044] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without inventive effort should fall within the protection scope of this utility model.

Claims

1. A high utilization rate of the collector blocking bullet, its blocking bullet piece uses the sheet-like elastic material, its characterized in that, The ballistic arrestor is provided with support members at both ends; the two ends of the ballistic arresting piece are connected to form a closed loop structure and are sleeved on the two support members. The contact surface between the support member and the ballistic arresting piece is arc-shaped, which facilitates the movement of the ballistic arresting piece around it and realizes the position adjustment of the ballistic arresting piece facing the center area of ​​the ballistic collector.

2. The high-utilization projectile catcher and anti-ballistic device according to claim 1, characterized in that, The support includes two fixing members at both ends and a support rod between the two fixing members. The contact surface between the support rod and the bulletproof sheet is arc-shaped, and the fixing members at both ends extend out of the bulletproof sheet.

3. The high-utilization projectile catcher and anti-ballistic device according to claim 2, characterized in that, The ballistic arrestor includes a metal frame, and two fasteners are fixed to the metal frame by fasteners.

4. The high-utilization projectile catcher and anti-ballistic component according to claim 3, characterized in that, A gasket is provided between the fastener and the metal frame, and the thickness of the gasket is greater than the thickness of the bulletproof sheet.

5. The high-utilization projectile catcher and anti-ballistic component according to claim 3, characterized in that, The metal frame is provided with connecting lugs on both sides, and a flange linear bearing is fixed in each of the two connecting lugs. The outer flange dimension of the flange linear bearing is larger than the inner diameter dimension of the connecting lug. All the flange linear bearings of the ballistic arrestor are arranged in the same direction. The flange linear bearings on the same side are coaxial and allow two optical axes to pass through. A spring body is provided between adjacent ballistic arrestors, and the spring body is sleeved on the optical axis and the flange linear bearing.

6. The high-utilization projectile catcher and anti-ballistic component according to claim 5, characterized in that, The flange end of the flange linear bearing is provided with a limiting ring with the same outer diameter as the non-flange end; One end of the spring body is fitted onto the non-flange end of a spring-loaded flange linear bearing, abutting against the connecting lug, while the other end abuts against the flange end of an adjacent spring-loaded flange linear bearing, and remains coaxial with the optical axis under the action of the limiting ring.

7. The high-utilization projectile catcher and anti-ballistic device according to claim 5 or 6, characterized in that, The metal frame is provided with multiple limiting components to restrict the movement distance of the ballistic plate along the optical axis.

8. The high-utilization projectile catcher and anti-ballistic device according to claim 3, characterized in that, The metal frame is provided with multiple abutting members, which pass through the metal frame from the back and abut against the bullet-stopping sheet.

9. A projectile collector, characterized in that, It includes the bullet catcher and bullet stopper as described in any one of claims 1-8.

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