Bullet velometer

Abstract

The utility model relates to the technical field of target shooting, and discloses a bullet velometer which is convenient for accurately measuring the speed of a bullet during target shooting practice, and comprises a fixed seat, a first speed measuring plate, a second speed measuring plate and two groups of sensors, wherein the first speed measuring plate and the second speed measuring plate are symmetrically arranged on two sides of the fixed seat; the fixing base is provided with a bullet speed measuring channel along a bullet shooting track between the first speed measuring plate and the second speed measuring plate, and the two sets of sensors comprise the first speed measuring plate and the second speed measuring plate, and the first sensor and the second sensor are arranged along the bullet speed measuring channel in a spaced mode. A timing unit is arranged in the fixing base through a circuit board and electrically connected with the first sensor and the second sensor.

Description

Technical Field

[0001] This utility model relates to the field of target shooting technology, and in particular to a bullet velocity detector. Background Technology

[0002] At the shooting range, shooting trainees practice shooting at the target equipment to obtain their shooting training scores.

[0003] In existing technologies, it is sometimes necessary to measure the velocity of a firearm at distances of 1m, 2m, 5m, and 10m after the bullet leaves the barrel to determine whether the firearm can achieve its pre-designed shooting performance and to test the explosive force of the bullet. Therefore, researchers in this field have designed a bullet velocity meter for accurately measuring the velocity of fired bullets during target practice. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and to provide a bullet velocity detector, which facilitates accurate velocity measurement of bullets during target shooting practice.

[0005] The technical solution of this utility model is as follows: a bullet velocity detector, including a fixed base, a first velocity measuring plate and a second velocity measuring plate symmetrically arranged on both sides of the fixed base, and two sets of sensors. The fixed base is provided with a bullet velocity measuring channel along the bullet firing trajectory between the first velocity measuring plate and the second velocity measuring plate. The two sets of sensors include a first sensor and a second sensor arranged at intervals along the bullet velocity measuring channel on the first velocity measuring plate and the second velocity measuring plate. A timing unit is provided in the fixed base through a circuit board. The timing unit is electrically connected to the first sensor and the second sensor respectively.

[0006] As can be seen from the above scheme, the first sensor and the second sensor are used to detect the sequential passage of the bullet, and the timing unit is used to record the time points when the bullet passes through the first sensor and the second sensor respectively. When the bullet is fired, it passes through the bullet velocity measurement channel, which makes it easier to measure the speed of the bullet more accurately.

[0007] The front side of the mounting base is equipped with a display screen and a button assembly, and the display screen is electrically connected to the timing unit. Therefore, the display screen is used to display the bullet velocity.

[0008] The mounting base is equipped with a processing unit via a circuit board, which is electrically connected to both the timing unit and the display screen. Therefore, the processing unit is used for data processing to calculate the bullet's velocity.

[0009] Both the first sensor and the second sensor include correspondingly arranged light emitting units and light receiving units, and the spacing between the light emitting units and the light receiving units is adapted to the bullet velocity measurement channel. Therefore, the light emitting unit is used to emit light, and the light receiving unit is used to receive the light emitted by the light emitting unit.

[0010] Both the first and second speed measuring plates include a mounting bracket and a buckle plate. The buckle plate is fixedly connected to the inner side of the mounting bracket plate. A mounting cavity is provided between the mounting bracket plate and the buckle plate. The sensor is disposed in the mounting cavity. The buckle plate has a through slot corresponding to the sensor. Therefore, the mounting cavity is used to install the first and second sensors, the through slot is used to allow light from the sensors to pass through, and the mounting bracket plate and the buckle plate are fixedly connected.

[0011] A charging port is provided on the rear side of the mounting base. Therefore, the charging port is used for charging.

[0012] The first and second speed measuring plates are respectively provided with through slots. Therefore, the through slots are used to reduce weight and facilitate hand-held handling and movement. Attached Figure Description

[0013] Figure 1 This is a front view of the present invention;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the present invention;

[0016] Figure 4 This is a state diagram of the present invention;

[0017] Figure 5 This is a schematic diagram of the signal connection of this utility model. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] like Figures 1 to 5As shown, this utility model is a bullet velocity detector, including a fixed base 1, a first velocity measuring plate 2 and a second velocity measuring plate 3 symmetrically arranged on both sides of the fixed base 1, and two sets of sensors. The fixed base 1 is provided with a bullet velocity measuring channel 4 along the bullet firing trajectory between the first velocity measuring plate 2 and the second velocity measuring plate 3. The two sets of sensors include a first sensor 5 and a second sensor 6 arranged at intervals along the bullet velocity measuring channel 4 on the first velocity measuring plate 2 and the second velocity measuring plate 3. A timing unit 7 is provided in the fixed base 1 through a circuit board. The timing unit 7 is electrically connected to the first sensor 5 and the second sensor 6 respectively.

[0020] In this embodiment, the distance between the first sensor 5 and the second sensor 6 is adapted to the width of the bullet firing channel 4, which facilitates bullet velocity measurement on the bullet firing trajectory. Support columns 12 are provided at the four corners of the bottom of the fixed base 1 to facilitate placement and support on a flat surface. An inner cavity 11 is provided inside the base 1, and the circuit board is disposed in the inner cavity 11. The circuit board includes a data processing unit.

[0021] The mounting base 1 has a display screen 8 and a button group 9 on its front side. The display screen 8 is electrically connected to the timing unit 7. The mounting base 1 has a processing unit installed on its circuit board, which is electrically connected to both the timing unit and the display screen 8. In this embodiment, the timing unit 7 transmits the recorded time data to the processing unit 10. The processing unit 10 records the distance parameters between the two sets of sensors. The processing unit 10 calculates the bullet velocity using the known distance parameters and the time difference from the timing unit, and then transmits the calculated bullet velocity to the display screen 8 for display.

[0022] Both the first sensor 5 and the second sensor 6 include correspondingly arranged light emitting and light receiving parts, and the spacing between the light emitting and light receiving parts is adapted to the bullet velocity measuring channel 4. In this embodiment, both the first sensor 5 and the second sensor 6 are through-beam grating sensors. The light emitting part emits light signals, which are received by the light receiving part to form a protective light curtain. The light receiving part is used to monitor the on / off state of the light curtain and processes the on / off signal of the light curtain through internal circuitry. The light emitting part and the light receiving part are symmetrically arranged through the first velocity measuring plate 3 and the second velocity measuring plate 3 on both sides of the fixing base 1 to facilitate high-speed detection. When a bullet passes through, it will block the light curtain to achieve signal output for timing.

[0023] Both the first speed measuring plate 2 and the second speed measuring plate 3 include a mounting frame plate 21 and a buckle plate 22. The buckle plate 22 is fixedly connected to the inner side of the mounting frame plate 21. A mounting cavity 23 is provided between the mounting frame plate 21 and the buckle plate 22. The sensor is disposed in the mounting cavity 23. A through slot 221 corresponding to the sensor is provided on the buckle plate 22. In this embodiment, the through slot 221 allows light to pass through.

[0024] A charging interface 12 is provided on the rear side of the mounting base 1. In this embodiment, the charging interface 12 adopts a Type-C interface, a universal charging interface for mobile phones and other electronic devices, which facilitates charging in daily life.

[0025] The first speed measuring plate 2 and the second speed measuring plate 3 are respectively provided with through slots 24. In this embodiment, both the first speed measuring plate 2 and the second speed measuring plate 3 are made of bulletproof material, which can effectively resist impact when bullets are accidentally fired and extend their service life. The inner corners of the through slots 24 are rounded to facilitate gripping. By lifting the through slots 24 on the first speed measuring plate 2 and the second speed measuring plate 3 with both hands, it is helpful to move the bullet velocity detector to different locations on the firing trajectory to achieve velocity measurement.

[0026] The working process of this utility model is as follows: the bullet velocity detector is placed in a suitable position. When shooting at a target, the bullet 100 fired from the gun passes through the two rows of light gratings formed by the first sensor 5 and the second sensor 6 in sequence along the bullet velocity measuring channel 4. After the first sensor 5 and the second sensor 6 receive the on / off signal of the light curtain, they transmit the signal to the timing module 7. The timing module 7 records the time T1 and T2 when the bullet passes through. Since the distance between the first sensor 5 and the second sensor 6 is limited, the speed of the bullet when passing through the bullet velocity detector can be calculated by dividing the distance by the time difference (T2-T1), thus realizing the velocity measurement of the fired bullet.

[0027] Finally, it should be emphasized that the above description is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bullet speed meter, comprising a fixing seat (1), a first speed measuring plate (2), a second speed measuring plate (3) symmetrically arranged on both sides of the fixing seat (1), and two sets of sensors, characterized in that: The fixing seat (1) is provided with a bullet speed measuring channel (4) along the bullet shooting track between the first speed measuring plate (2) and the second speed measuring plate (3); the two groups of sensors include a first sensor (5) and a second sensor (6) arranged at intervals between the first speed measuring plate (2) and the second speed measuring plate (3) along the bullet speed measuring channel (4); a timing unit (7) is provided in the fixing seat (1); the timing unit (7) is electrically connected to the first sensor (5) and the second sensor (6), respectively.

2. The bullet speed measuring device according to claim 1, characterized in that: A display screen (8) and a button group (9) are arranged on the front side of the fixing seat (1), and the display screen (8) is electrically connected to the timing unit (7).

3. The bullet speed measuring device according to claim 2, characterized in that: The fixing seat (1) is provided with a processing unit via a circuit board, and the processing unit is electrically connected to the timing unit and the display screen (8) respectively.

4. The bullet speed measuring device according to claim 1, characterized in that: The first sensor (5) and the second sensor (6) both comprise a light emitting part (51) and a light receiving part (52) which are arranged correspondingly, and the interval between the light emitting part (51) and the light receiving part (52) is adapted to the bullet speed measuring channel (4).

5. The bullet speed measuring device according to claim 1, characterized in that: The first speed measuring plate (2) and the second speed measuring plate (3) both comprise a mounting frame plate (21) and a buckle plate (22), wherein the buckle plate (22) is fixedly connected to the inner side of the mounting frame plate (21), an installation cavity (23) is provided between the mounting frame plate (21) and the buckle plate (22), the sensor is provided in the installation cavity (23), and a through groove (221) corresponding to the sensor is provided on the buckle plate (22).

6. The bullet speed measuring device according to claim 1, characterized in that: A charging interface (12) is provided on the rear side of the fixing seat (1).

7. The bullet speed measuring device according to claim 1, characterized in that: Through slots (24) are correspondingly provided on the first speed measuring plate (2) and the second speed measuring plate (3).

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