Bullet speed measuring device

Abstract

The utility model relates to the technical field of bullet velocity measurement, in particular to a bullet velocity measurement device which comprises a velocity measurement table and an auxiliary structure, the auxiliary structure is arranged on one side of the velocity measurement table, and the auxiliary structure can further comprise a connecting frame, an adjusting assembly and a telescopic assembly. A person moves a T-shaped block to move along a sliding hole, the T-shaped block drives a first spring to stretch, a connecting frame is moved downwards, the connecting frame drives a sliding rod to move downwards, the T-shaped block is driven to move along a rectangular groove, meanwhile, the connecting frame drives a plurality of supporting rods to move along corresponding sleeve bases through a plurality of guide blocks, and the height of the speed measuring table is adjusted. And after the speed measurement table is adjusted to a proper position, the T-shaped block is loosened, the elastic force of the first spring drives the T-shaped block to move, so that the positioning blocks at the corresponding positions of the positioning holes in the two sides are connected, the sleeve rod and the sliding rod are fixed, and the height of the supporting rods around the speed measurement table is adjusted at the same time, so that the height sleeving of the speed measurement table is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bullet speed measurement, in particular to a bullet speed measurement device. Background Art

[0002] With the rapid development of social economy, the performance of guns is getting better and better. In reality, guns are one of the most commonly used weapons to prevent and stop crimes. Bullet velocity measurement is used to determine whether the gun can achieve the pre-designed performance, as well as to test the explosive force of the bullet and the speed attenuation ratio at different positions in flight. Bullet velocity measurement is one of the important indicators for gun quality inspection.

[0003] For example, a bullet speed measuring instrument with the authorization announcement number CN221425508U can assist the operator in adjusting the firing direction of the gun to accurately position it by setting a positioning component; by setting a height adjustment component, it can adjust the height of the shooting platform according to different gun types and the needs of the operator to provide a comfortable and suitable working environment. However, the bullet speed measuring device in the above document cannot adjust the height of the support rods at the bottom of the speed measuring platform at the same time during the process of adjusting the height of the speed measuring platform. Personnel are required to adjust the height of multiple support rods at the bottom in turn, and corresponding locking parts are required to fix the support rods, which makes it inconvenient to adjust the height of the speed measuring platform. Utility Model Content

[0004] The utility model aims to solve the problem that it is inconvenient to adjust the height of a speed measuring platform, and proposes a bullet speed measuring device.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A bullet speed measuring device is designed, comprising a speed measuring platform and an auxiliary structure. The auxiliary structure is provided on one side of the speed measuring platform, wherein the auxiliary structure may further comprise a connecting frame, an adjustment component, and a telescopic component.

[0007] The plurality of telescopic components are arranged around the speed measuring platform, and the plurality of telescopic components are distributed on both sides of the connecting frame. An adjusting component is arranged in the middle of the connecting frame.

[0008] Preferably, the telescopic assembly includes a guide block, a sleeve and a support rod;

[0009] A connecting cavity is provided in the middle of the sleeve, and an extending end of the sleeve is provided at the opening of the connecting cavity;

[0010] A guide groove is provided at the side end of the connecting cavity, and the guide groove passes through one side of the sleeve;

[0011] The outer wall of the support rod is in contact with the connecting cavity, and a clamping block is provided at the side end of the support rod;

[0012] The shape of the clamping block is the same as that of the guide groove, the clamping block can match the guide groove, and the middle portion of the clamping block is rotatably connected to the guide block.

[0013] Preferably, the ends of the plurality of sleeves are hinged to the speed measuring platform.

[0014] Preferably, guide cavities are respectively provided on both sides of the connecting frame, and the guide cavities on both sides are arranged in a mirror image;

[0015] A slide groove is provided in the middle of the connecting frame, and connecting grooves are provided on one side of both ends of the slide groove;

[0016] Positioning grooves are respectively provided on both sides of the middle portion of the sliding groove, and the positioning grooves pass through the connecting groove.

[0017] Preferably, the shape of the guide cavity is the same as that of the guide block, and the guide groove can match the guide block.

[0018] Preferably, the adjustment assembly includes a sleeve rod, a slide rod, a first spring, a T-shaped block, a slider, a limit block and a second spring;

[0019] A sliding cavity is provided in the middle of the sleeve rod, and an opening of the sliding cavity is provided at the extending end of the sleeve rod;

[0020] A rectangular groove is provided at the side end of the sliding cavity, and the rectangular groove passes through the side end of the sleeve rod;

[0021] A plurality of positioning blocks are provided on the side ends of the sleeve rod, and the plurality of positioning blocks are distributed on both sides of the rectangular groove in a mirror-image manner;

[0022] The inner wall of the sliding cavity is fitted with the sliding rod, one end of the sliding rod is matched with the rectangular groove, and a sliding hole is provided in the middle of the sliding rod;

[0023] The two ends of the first spring are fixedly connected to the slide rod and the T-shaped block respectively, and the first spring is arranged inside the slide hole;

[0024] The side of the T-shaped block adjacent to the first spring has the same inner diameter as the sliding hole, and the T-shaped block matches the sliding hole;

[0025] Positioning holes are respectively provided on both sides of the T-shaped block away from the first spring. The shape of the T-shaped block is the same as that of the positioning block, and the positioning holes can match the positioning block.

[0026] A slider is rotatably provided on one side of the slide rod away from the sleeve rod, and a plurality of connection holes are respectively provided on both sides of the slider;

[0027] The connection holes on both sides are matched with the limit blocks, and a second spring is fixedly provided on both sides of one end of the limit block;

[0028] One end of the plurality of second springs away from the limiting block is fixedly connected to the slider, and the second springs are respectively arranged inside the connecting holes.

[0029] Preferably, both sides of the slider match the connecting grooves respectively, and the limit block matches the positioning groove;

[0030] One side of the sleeve rod is hinged to the speed measuring platform, and the sleeve rod and the slide rod are matched with the slide groove.

[0031] The utility model proposes a bullet speed measuring device, which has the following beneficial effects: when a person moves the T-block along the sliding hole, the T-block drives the first spring to stretch and move the connecting frame downward, the connecting frame drives the slide rod downward, and drives the T-block to move along the rectangular groove, and at the same time the connecting frame drives multiple support rods to move along the corresponding sleeve seats at the same time through multiple guide blocks, so as to adjust the height of the speed measuring platform. After adjusting to the appropriate position, the T-block is released, and the elastic force of the first spring drives the T-block to move, so that the positioning blocks at the corresponding positions of the positioning holes on both sides are connected, thereby fixing the sleeve rod and the slide rod, and by adjusting the heights of the support rods around the speed measuring platform at the same time, the height sleeve connection of the speed measuring platform is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of the utility model;

[0033] Figure 2 This is an exploded view of the structure of the connecting frame, adjustment assembly and telescopic assembly of the present invention;

[0034] Figure 3 It is a partial cross-sectional structural diagram of the adjustment assembly and the connecting frame of the present utility model;

[0035] Figure 4 This is a schematic diagram of the structural decomposition of the adjustment component of the present invention;

[0036] Figure 5 This is a schematic diagram of the structural decomposition of the telescopic component of the present invention.

[0037] In the figure: 1. Speed measuring platform; 2. Connecting frame; 201. Guide cavity; 202. Slide groove; 203. Connecting groove; 204. Positioning groove; 3. Adjusting assembly; 301. Sleeve rod; 3011. Positioning block; 3012. Slide cavity; 3013. Rectangular groove; 302. Slide rod; 3021. Slide hole; 303. First spring; 304. T-block; 3041. Positioning hole; 305. Slider; 3051. Connecting hole; 306. Limit block; 307. Second spring; 4. Telescopic assembly; 401. Guide block; 402. Sleeve; 4021. Connecting cavity; 4022. Guide groove; 403. Support rod; 4031. Block. DETAILED DESCRIPTION

[0038] The present invention will be further described below with reference to the accompanying drawings:

[0039] This embodiment Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, a bullet speed measuring device includes a speed measuring platform 1 and an auxiliary structure. The auxiliary structure is provided on one side of the speed measuring platform 1, wherein the auxiliary structure may also include a connecting frame 2, an adjustment component 3 and a telescopic component 4. Multiple telescopic components 4 are arranged around the speed measuring platform 1, and multiple telescopic components 4 are distributed on both sides of the connecting frame 2. The adjustment component 3 is provided in the middle of the connecting frame 2.

[0040] The telescopic assembly 4 includes a guide block 401, a sleeve 402 and a support rod 403. A connecting cavity 4021 is provided in the middle of the sleeve 402, and an extension end of the sleeve 402 is provided at the opening position of the connecting cavity 4021. A guide groove 4022 is provided at the side end of the connecting cavity 4021, and the guide groove 4022 runs through one side of the sleeve 402. The outer wall of the support rod 403 fits with the connecting cavity 4021. A clamping block 4031 is provided at the side end of the support rod 403. The shape of the clamping block 4031 is the same as that of the guide groove 4022. The clamping block 4031 can be aligned with the guide groove 4022. 022 matches, the middle part of the block 4031 is rotatably connected to the guide block 401, the ends of multiple sleeves 402 are hinged to the speed measuring platform 1, and a torsion spring is provided at the hinge position of the sleeve 402 and the speed measuring platform 1, so that the sleeve 402 can rotate along the inner side of the speed measuring platform 1, and the support rod 403 can move along the connecting cavity 4021 of the sleeve 402, and the support rod 403 drives the block 4031 to move along the guide groove 4022. At the same time, the support rod 403 drives the guide block 401 to move through the block 4031, and the guide block 401 rotates along the block 4031.

[0041] Guide cavities 201 are respectively provided on both sides of the connecting frame 2, and the guide cavities 201 on both sides are mirrored. A slide groove 202 is provided in the middle of the connecting frame 2, and connecting grooves 203 are provided on one side of both ends of the slide groove 202. Positioning grooves 204 are respectively provided on both sides of the middle of the slide groove 202, and the positioning grooves 204 pass through the connecting groove 203. The shape of the guide cavity 201 is the same as that of the guide block 401, and the guide groove 4022 can match the guide block 401, and the guide block 401 can slide along the inside of the guide cavity 201.

[0042] The adjusting component 3 includes a sleeve rod 301, a slide rod 302, a first spring 303, a T-block 304, a slider 305, a limit block 306 and a second spring 307. A sliding cavity 3012 is provided in the middle of the sleeve rod 301, and the opening of the sliding cavity 3012 is provided at the extended end of the sleeve rod 301. A rectangular groove 3013 is provided at the side end of the sliding cavity 3012, and the rectangular groove 3013 passes through the side end of the sleeve rod 301. A plurality of positioning blocks 3011 are provided at the side end of the sleeve rod 301, and the plurality of positioning blocks 3011 are mirror-imaged on both sides of the rectangular groove 3013. The inner wall of the sliding cavity 3012 is fitted with the slide rod 302, and one side end of the slide rod 302 matches the rectangular groove 3013. A sliding hole 3021 is provided in the middle of the slide rod 302. The two ends of 303 are fixedly connected to the slide bar 302 and the T-block 304 respectively, and the first spring 303 is arranged inside the slide hole 3021. The side of the T-block 304 adjacent to the first spring 303 has the same inner diameter as the slide hole 3021. The T-block 304 matches the slide hole 3021. Positioning holes 3041 are respectively provided on both sides of the T-block 304 away from the first spring 303. The T-block 304 moves along the slide hole 3021, and the T-block 304 drives the first spring 303 to stretch. When the positioning holes 3041 on both sides of the T-block 304 are separated from the positioning blocks 3011, the connecting frame 2 moves downward, and the connecting frame 2 drives the slide bar 302 to move downward. The slide bar 302 moves along the slide cavity 3012 of the sleeve rod 301, and the slide bar 302 brings The movable T-block 304 moves along the rectangular groove 3013, and at the same time, the connecting frame 2 drives the multiple support rods 403 to move along the corresponding sleeve seats 402 through the multiple guide blocks 401, so as to adjust the height of the speed measuring platform 1. After adjusting to the appropriate position, the T-block 304 is released, and the elastic force of the first spring 303 drives the T-block 304 to move, so that the positioning blocks 3011 at the corresponding positions of the positioning holes 3041 on both sides are connected, thereby fixing the sleeve rod 301 and the sliding rod 302. The shape of the T-block 304 is the same as that of the positioning block 3011, and the positioning hole 3041 can match the positioning block 3011. The side of the sliding rod 302 away from the sleeve rod 301 is rotatably provided with a slider 305, and multiple connecting rods are respectively provided on both sides of the slider 305. The holes 3051 on both sides of the connection holes 3051 match the limit blocks 306. Second springs 307 are fixedly provided on both sides of one end of the limit blocks 306. One end of the plurality of second springs 307 away from the limit blocks 306 is fixedly connected to the slider 305, and the second springs 307 are respectively arranged inside the connection holes 3051. When a person moves the limit blocks 306 on both sides at the same time, the limit blocks 306 can move along the positioning groove 204. The limit blocks 306 drive the second springs 307 to compress along the connection holes 3051. When the limit blocks 306 are separated from the positioning groove 204, the connecting frame 2 is moved upward, and the connecting member 2 drives the guide block 401 to move upward. During the upward movement of the guide block 401, the sleeve 402 is affected by the elastic force of the torsion spring to rotate inward.The sleeve 402 drives the guide block 401 to move inward along the guide cavity 201 through the support rod 403. At the same time, the sleeve rod 301 rotates along the speed measuring platform 1, and the sleeve rod 301 drives the slide rod 302 to move circumferentially. The slide rod 302 drives the slider 305 to move along the connecting groove 203, so that multiple telescopic components 4 can be stored.

[0043] Both sides of the slider 305 match the connecting groove 203 respectively, the limit block 306 matches the positioning groove 204, one side of the sleeve rod 301 is hinged to the speed measuring platform 1, and the sleeve rod 301 and the slide rod 302 match the slide groove 202.

[0044] Specifically, a person moves the T-block 304 to move along the sliding hole 3021, and the T-block 304 drives the first spring 303 to stretch and move the connecting frame 2 downward. The connecting frame 2 drives the slide bar 302 to move downward, driving the T-block 304 to move along the rectangular groove 3013. At the same time, the connecting frame 2 drives the multiple support rods 403 to move along the corresponding sleeve seats 402 through the multiple guide blocks 401 to adjust the height of the speed measuring platform 1. After adjusting to a suitable position, the T-block 304 is released, and the elastic force of the first spring 303 drives the T-block 304 to move, so that the positioning blocks 3011 at the corresponding positions of the positioning holes 3041 on both sides are connected, thereby fixing the sleeve rod 301 and the slide bar 302.

[0045] When use is finished, the support rod 403 is retracted into the sleeve 402. When the personnel simultaneously move the limit blocks 306 on both sides to separate from the positioning groove 204, the connecting frame 2 is moved upward, and the connecting member 2 drives the guide block 401 to move upward. During the upward movement of the guide block 401, the sleeve 402 is affected by the elastic force of the torsion spring to rotate inward, and the sleeve 402 drives the guide block 401 to move inward along the guide cavity 201 through the support rod 403. At the same time, the sleeve rod 301 rotates along the speed measuring platform 1, and the sleeve rod 301 drives the slide rod 302 to move circumferentially. The slide rod 302 drives the slider 305 to move along the connecting groove 203, so that multiple telescopic components 4 can be stored.

[0046] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A bullet speed measuring device, characterized in that: The speed measuring platform comprises a speed measuring platform and an auxiliary structure, wherein the auxiliary structure is provided on one side of the speed measuring platform, wherein the auxiliary structure may further comprise a connecting frame, an adjustment component and a telescopic component; The plurality of telescopic components are arranged around the speed measuring platform, and the plurality of telescopic components are distributed on both sides of the connecting frame. An adjusting component is arranged in the middle of the connecting frame.

2. The bullet velocity measuring device according to claim 1, characterized in that: The telescopic assembly includes a guide block, a sleeve and a support rod; A connecting cavity is provided in the middle of the sleeve, and an extending end of the sleeve is provided at the opening of the connecting cavity; A guide groove is provided at the side end of the connecting cavity, and the guide groove passes through one side of the sleeve; The outer wall of the support rod is in contact with the connecting cavity, and a clamping block is provided at the side end of the support rod; The shape of the clamping block is the same as that of the guide groove, the clamping block can match the guide groove, and the middle portion of the clamping block is rotatably connected to the guide block.

3. The bullet velocity measuring device according to claim 2, characterized in that: The ends of the plurality of sleeves are hinged to the speed measuring platform.

4. The bullet velocity measuring device according to claim 3, characterized in that: A guide cavity is provided on both sides of the connecting frame, and the guide cavities on both sides are arranged in a mirror image; A slide groove is provided in the middle of the connecting frame, and connecting grooves are provided on one side of both ends of the slide groove; Positioning grooves are respectively provided on both sides of the middle portion of the sliding groove, and the positioning grooves pass through the connecting groove.

5. The bullet speed measuring device according to claim 4, characterized in that: The shape of the guide cavity is the same as that of the guide block, and the guide groove can match the guide block.

6. The bullet velocity measuring device according to claim 1, characterized in that: The adjustment assembly includes a sleeve rod, a slide rod, a first spring, a T-block, a slider, a limit block and a second spring; A sliding cavity is provided in the middle of the sleeve rod, and an opening of the sliding cavity is provided at the extending end of the sleeve rod; A rectangular groove is provided at the side end of the sliding cavity, and the rectangular groove passes through the side end of the sleeve rod; A plurality of positioning blocks are provided on the side ends of the sleeve rod, and the plurality of positioning blocks are distributed on both sides of the rectangular groove in a mirror-image manner; The inner wall of the sliding cavity is fitted with the sliding rod, one end of the sliding rod is matched with the rectangular groove, and a sliding hole is provided in the middle of the sliding rod; The two ends of the first spring are fixedly connected to the slide rod and the T-shaped block respectively, and the first spring is arranged inside the slide hole; The side of the T-shaped block adjacent to the first spring has the same inner diameter as the sliding hole, and the T-shaped block matches the sliding hole; Positioning holes are respectively provided on both sides of the T-shaped block away from the first spring. The shape of the T-shaped block is the same as that of the positioning block, and the positioning holes can match the positioning block. A slider is rotatably provided on one side of the slide rod away from the sleeve rod, and a plurality of connection holes are respectively provided on both sides of the slider; The connection holes on both sides are matched with the limit blocks, and a second spring is fixedly provided on both sides of one end of the limit block; One end of the plurality of second springs away from the limiting block is fixedly connected to the slider, and the second springs are respectively arranged inside the connecting holes.

7. The bullet velocity measuring device according to claim 6, characterized in that: Both sides of the slider match the connecting grooves respectively, and the limit block matches the positioning groove; One side of the sleeve rod is hinged to the speed measuring platform, and the sleeve rod and the slide rod are matched with the slide groove.

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