Bullet primer firing test device

Abstract

The utility model discloses a bullet primer firing test device which comprises a box body, a firing generator, a firing block, a magazine and an exhaust fan, an inner cavity of the box body is sequentially divided into a firing area, a magazine area, a filtering chamber and an exhaust chamber in the length direction of the box body, and at least one bullet nest used for containing bullets is arranged on the magazine. The magazine is detachably installed in the magazine area in a drawer mode, one end of the bullet nest is connected with the percussion motor of the percussion area, the percussion motor is connected with and drives the percussion block to percussion bullet primer in the bullet nest, a filtering piece playing a filtering role is arranged between the filtering chamber and the exhaust chamber, and the exhaust fan is installed on the side wall, corresponding to the exhaust chamber, of the box body. The device is not provided with a complicated gun structure, is simple and convenient to operate, does not need special training, is convenient to popularize and use in criminal technical departments for carrying out bullet inspection, is safe and stable, is not easy to modify, cannot be used for being modified into a gun, cannot generate safety risks during firing, can be adaptive to various magazines, and is high in inspection efficiency and accurate in inspection result.

Description

Technical Field

[0001] The utility model belongs to the technical field of gun and ammunition inspection and identification, in particular to a gun and bullet primer firing test device. Background Art

[0002] In the fight against illegal manufacturing, sale, transportation, mailing, storage of firearms and ammunition and other gun-related cases, the inspection and identification of firearms and ammunition is an important part, which plays a role in providing evidence for the final decision. In the inspection work, homemade or unidentified guns and ammunition are often encountered. In the past, the inspection method was to find a suitable gun for firing, but the laboratory usually does not have a test gun, and the caliber of non-standard bullets is different, so it is difficult to obtain a suitable gun. The second is decomposition inspection, that is, to test whether each part of the bullet has the corresponding function separately. This involves the problem of firing the primer of the bullet. There is an urgent need for a primer firing device that can adapt to a variety of different caliber bullets. Utility Model Content

[0003] In view of the above problems existing in the prior art, the purpose of the utility model is to provide a gun primer firing test device, which has no complicated gun structure, is easy to operate, does not require special training, is easy to promote and use in criminal technology departments that conduct gun and bullet inspections, is safe and stable, is not easy to modify, and will not be used to modify into guns. The bullets fired by the device are all removed from the warhead and propellant, so the firing power is small, and there is no safety risk when firing. It has strong adaptability and is easy to expand. It can be adapted to a variety of magazines, with high inspection efficiency and accurate inspection results.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A gun primer firing test device comprises a box body, a firing generator, a firing block, a magazine and an exhaust fan. The internal volume of the box body is divided into a firing area, a magazine area, a filter chamber and an exhaust chamber in sequence along the length direction of the box body. The magazine is provided with at least one cylinder for placing bullets. The magazine is detachably installed in the magazine area in a drawer-like manner. One end of the cylinder is connected to the firing generator in the firing area. The firing generator is connected to and drives the firing block to fire the bullet primer in the cylinder. A filter element for filtering is provided between the filter chamber and the exhaust chamber. The exhaust fan is installed on the side wall of the box body corresponding to the exhaust chamber.

[0006] As a further improvement of the above technical solution:

[0007] The number of the bullet nests on the magazine is the same as the number of the firing generators. When there are at least two bullet nests and at least two firing generators, each firing generator is connected to each bullet nest, and each firing generator is arranged in sequence along the width direction of the box.

[0008] The smoke and fire generated when the primer of the bullet in the cylinder is fired can be observed and / or photographed through the transparent side wall of the box.

[0009] The cartridge case in the housing is connected to a gas duct, which is used to direct the gas generated by the primer of the fired bullet in the cartridge case into the filter chamber.

[0010] The box body is in the shape of a rectangular block as a whole, with a length of 80 to 90 cm, a width of 20 to 28 cm, and a height of 25 to 35 cm.

[0011] The test device also includes a bracket for supporting and lifting the box.

[0012] The cover of the box body is arranged to be detachable.

[0013] The test device also includes a control system, which includes a controller and a terminal device. The terminal device and the shock generator are electrically connected to the controller, and the shock generator is started and the test results are entered through the terminal device.

[0014] The test device also includes a camera for photographing the firing process and post-firing state of the primer of the bullet in the cylinder.

[0015] The bullet under test placed in the cylinder has the bullet head and propellant removed.

[0016] The beneficial effects of the utility model are:

[0017] (1) The test device does not have a complicated firearm structure and is easy to operate. It does not require special training and is easy to promote and use in criminal technology departments that conduct gun and bullet inspections.

[0018] (2) Safe, stable, and not easy to modify. The test device has a box-type appearance, and its internal structure does not involve issues such as firearm locking, so it will not be used to modify it into a firearm. The bullets fired by the device have all had their warheads and propellants removed, so the firing power is small and there is no safety risk when firing.

[0019] (3) Strong adaptability and easy expansion. It can be adapted to a variety of magazines, which can be adapted to a variety of bullets of different calibers. Multiple chambers of the same magazine can also be set to adapt to bullets of different calibers. In actual work, there are many types of guns and bullets involved, especially homemade guns and bullets, with different calibers. Even if there are no existing compatible magazines, magazines of corresponding calibers can be easily and quickly processed and produced.

[0020] (4) High inspection efficiency and accurate inspection results. The magazine adopts a pull-out design, which can hold multiple bullets at a time. The primer is fired by the percussion generator. The parameters such as the pushing distance of the percussion generator are pre-set. The firing action is similar to the firing pin action when firing a firearm, avoiding the errors that may be caused by manual tapping, and the test results are more accurate. The camera records the entire process, realizing process traceability, which further improves the accuracy of the inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the internal structure of an embodiment of the utility model.

[0022] Figure 2 It is a structural schematic diagram of another viewing angle of an embodiment of the utility model.

[0023] Figure 3 It is a structural schematic diagram of another viewing angle of an embodiment of the utility model. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0025] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0026] A gun primer firing test device, such as Figures 1 to 3 As shown, it includes a box body 1, a firing generator 2, a firing block, a magazine 3, an air duct 4, an exhaust fan 5, a bracket 6, a camera and a control system.

[0027] The box body 1 has an internal cavity, which is divided into a firing area 11, a magazine area 12, a filter chamber 13, and an exhaust chamber 14 along the length direction of the box body 1. The cover plate 17 of the box body 1 is detachable to facilitate inspection and replacement of internal components of the box body 1.

[0028] In this embodiment, the box body 1 is in the shape of a rectangular parallelepiped as a whole, with a length of 80 to 90 cm, a width of 20 to 28 cm, and a height of 25 to 35 cm.

[0029] The percussion generator 2 is arranged in the firing area 11. When at least one percussion generator 2 is provided, and when two or more percussion generators 2 are provided, each percussion generator 2 is arranged in sequence along the width direction of the box body 1.

[0030] The magazine area 12 is used to place the magazine 3, and the magazine 3 is detachably mounted on the box body 1. Specifically, the magazine 3 is in a drawer-like manner and can be inserted into or taken out of the box body 1. Correspondingly, the box body 1 is provided with a magazine opening 15 for the magazine 3 to enter and exit. When the magazine 3 is mounted on the box body 1, the length direction of the magazine 3 is consistent with the width direction of the box body 1.

[0031] The magazine 3 is provided with a plurality of nests 31 for placing bullets, and the plurality of nests 31 are arranged in sequence along the length direction of the magazine 3 , and each nest 31 can place one bullet. The length direction of the nests 31 is perpendicular to the length direction of the magazine 3 .

[0032] The gas guide tube 4 is arranged in the filter chamber 13, and is used to guide the gas generated by the primer of the fired bullet in the cartridge 31 into the filter chamber 13. At least one gas guide tube 4 is provided.

[0033] The number of the gas ducts 4, the number of the cartridge cases 31 on the magazine 3, and the number of the firing generators 2 are the same.

[0034] In this embodiment, four cartridges 31 , four percussion generators 2 , and four air ducts 4 are provided.

[0035] Furthermore, a plurality of through holes are provided on the side wall of the magazine 3, and each of the two ends in the length direction of each shell 31 is connected to one of the through holes. When the magazine 3 is installed on the box body 1, each shell 31 is connected to the air duct 4 through the through hole at one end, and is connected to the strike generator 2 through the through hole at the other end. In other words, one end of each shell 31 of the magazine 3 installed on the box body 1 is connected to each air duct 4, and the other end is connected to each strike generator 2.

[0036] The size of the cartridge case 31 and the size of the through hole on the magazine 3 can be flexibly set according to the caliber of the bullet to be tested. The same test device can be used with multiple magazines 3, each magazine 3 being adapted for bullets of different calibers.

[0037] The driving shaft of the percussion generator 2 is connected to a firing block, and the percussion generator 2 can drive the firing block to reciprocate in a straight line. The firing block can pass through the through hole on the magazine 3 and contact the bottom of the bullet in the shell 31, and the percussion generator 2 fires the bullet primer through the firing block. The structural principle of the firing block is the same as that of the window breaker. The principle of the window breaker is: the window breaker is aimed at the side window glass of the car, and its tail is pressed hard, and the hidden firing pin is released, instantly shattering the window glass, and then the firing pin automatically returns to its position. Correspondingly, one end of the firing block is connected to the percussion generator 2, and the other end is provided with a hidden firing head. When one end provided with the firing head contacts the bottom of the bullet, the percussion generator 2 continues to apply pressure to the firing block, and the hidden firing head is released under pressure, instantly hitting the bottom of the bullet to achieve the firing of the primer. The structural principle of the firing head being released under pressure is the same as the structural principle of the firing pin of the window breaker being released under pressure, which will not be repeated here.

[0038] After the bullet primer is fired, a sound and smoke are generated. Therefore, the side wall portion of the housing 1 corresponding to the connection area between the filter chamber 13 and the magazine area 12 is set as transparent glass to facilitate observation of the smoke and flash generated by the firing of the bullet primer.

[0039] A filter element 16 is provided between the filter chamber 13 and the exhaust chamber 14. In this embodiment, the filter element 16 is a filter element, which plays a role in filtering the gas in the filter chamber 13. The filter element 16 is detachably installed in the box body 1, and the filter element 16 is replaced regularly to ensure its use effect.

[0040] The exhaust fan 5 is installed on the side wall of the box body 1 corresponding to the exhaust chamber 14 , and the exhaust fan 5 exhausts the gas in the exhaust chamber 14 .

[0041] The camera is installed outside the box 1 and above the magazine area 12. The camera is aimed at the magazine 3 in the magazine area 12, and can capture the situation of the bullets in all the shells 31 on the magazine 3 when they are fired and after they are fired. Correspondingly, the corresponding cover plate 17 is set to be transparent.

[0042] The control system includes an operation tablet 7, a controller, etc. The camera, the exhaust fan 5, the generator 2, and the operation tablet 7 are all electrically connected to the controller. The operation tablet 7 is installed on the box 1. The exhaust fan 5, the generator 2, etc. are started and stopped by the operation tablet 7, and the test process and results are recorded and saved. The corresponding software program can be implemented by existing commonly used software and programs, which will not be repeated here. In addition, the control of the test device can also be realized on terminal devices such as mobile phones and computers.

[0043] Furthermore, in order to facilitate observation and operation, a bracket 6 is provided, and the box body 1 is supported on the bracket 6, so that people can observe and operate it while standing.

[0044] It should be noted that in this solution, the bullet under test is stripped of its warhead and propellant to reduce its power and eliminate safety risks.

[0045] Based on the above structure, the working principle and process of the utility model are as follows: the magazine 3 on the box body 1 is pulled out, the bullet to be tested is placed in the cylinder 31 of the magazine 3, and then the magazine 3 is put back into the box body 1 from the magazine opening 15. It should be noted that the primer end of the bullet in the cylinder 31 faces the firing area 11, and the magazine 3 is pushed into the box body 1 from the magazine opening 15. When pushed to the bottom, one end of each cylinder 31 on the magazine 3 is connected to each firing generator 2, and the other end is connected to each air guide tube 4. Then, the main power is turned on, the exhaust fan 5 is started, and the gas in the exhaust chamber 14 is discharged through the exhaust fan 5. Next, enter the corresponding configuration interface on the operating tablet 7 or other terminal device, enter the case name, bullet type, bullet grouping and other information according to the actual situation, and click the corresponding start inspection button. The camera starts recording, and the firing part enters the firing countdown (the countdown time is adjustable). After the countdown is completed, the firing generator 2 automatically runs, and the driving shaft of the firing generator 2 pushes the firing block, and the firing block fires the bullet primer in the cartridge 31. After the firing is successful, a sound will be made and smoke will be generated. If the firing fails, no sound and smoke will be generated. Mark whether the bullet primer in each cartridge 31 is fired on the operating tablet 7 or other terminal device and save it. The generated smoke enters the filter chamber 13 through the air guide 4. Under the power of the exhaust fan 5, the smoke in the filter chamber 13 will pass through the filter element 16 and enter the exhaust chamber 14, and finally be discharged from the exhaust fan 5. When the smoke passes through the filter element 16, the particles and other harmful substances in it will be filtered out to prevent direct discharge from harming the experimenter and damaging the environment. After the inspection is completed, the relevant data of this inspection is automatically saved, and the camera stops recording and automatically saves. Turn off the main power supply and stop the exhaust fan 5.

[0046] It should be noted that, in order to ensure accurate judgment, the bullets in the multiple shells 31 in the magazine 3 cannot be fired at the same time, but must be fired in sequence. In terms of program, multiple touch screen buttons can be set on the operating tablet 7 or other terminal device, corresponding to multiple firing generators 2 respectively, and clicking any button will start the corresponding firing generator 2. A general button can also be set, and after clicking, all firing generators 2 will start in sequence according to the set time interval.

[0047] Preferably, in order to prevent the firing of bullets in each cylinder 31 from affecting each other, after the magazine 3 is installed on the case 1, the top of the side wall of the magazine 3 and the top of the partition between adjacent cylinders 31 are fitted with the cover plate 17 to prevent the smoke generated by the firing of a bullet in a cylinder 31 from entering other cylinders 31 and affecting the judgment.

[0048] Finally, it is necessary to explain here that the above embodiments are only used to further illustrate the technical solution of the utility model in detail and cannot be understood as limiting the protection scope of the utility model. Some non-essential improvements and adjustments made by technicians in this field based on the above content of the utility model belong to the protection scope of the utility model.

Claims

1. A gun primer firing test device, characterized in that: The invention comprises a casing (1), a firing generator (2), a firing block, a magazine (3), and an exhaust fan (5); the internal volume of the casing (1) is divided into a firing area (11), a magazine area (12), a filter chamber (13), and an exhaust chamber (14) in sequence along the length direction of the casing (1); the magazine (3) is provided with at least one cylinder (31) for accommodating bullets; the magazine (3) is detachably mounted in the magazine area (12) in a drawer-like manner; one end of the cylinder (31) is connected to the firing generator (2) of the firing area (11); the firing generator (2) is connected to and drives the firing block to fire the bullet primer in the cylinder (31); a filter element (16) for filtering is provided between the filter chamber (13) and the exhaust chamber (14); and the exhaust fan (5) is mounted on the side wall of the casing (1) corresponding to the exhaust chamber (14).

2. The test device according to claim 1, characterized in that: The number of the bullet nests (31) on the magazine (3) is the same as the number of the striking generators (2). When there are at least two bullet nests (31) and at least two striking generators (2), each striking generator (2) is connected to each bullet nest (31), and each striking generator (2) is arranged in sequence along the width direction of the box body (1).

3. The test device according to claim 1, characterized in that: The smoke and fire generated when the bullet primer in the cartridge chamber (31) is fired can be observed and / or photographed through the transparent side wall of the box body (1).

4. The test device according to claim 1, characterized in that: The cartridge case (31) in the housing (1) is connected to the gas guide pipe (4), and the gas guide pipe (4) is used to guide the gas generated by the primer of the fired bullet in the cartridge case (31) into the filter chamber (13).

5. The test device according to claim 1, characterized in that: The box body (1) is in the shape of a rectangular parallelepiped as a whole, with a length of 80 to 90 cm, a width of 20 to 28 cm, and a height of 25 to 35 cm.

6. The test device according to claim 5, characterized in that: The test device also includes a bracket (6) for supporting and lifting the box (1).

7. The test device according to claim 1, characterized in that: The cover plate (17) of the box body (1) is arranged to be detachable.

8. The test device according to claim 1, characterized in that: The test device also includes a control system, which includes a controller and a terminal device. The terminal device and the shock generator (2) are electrically connected to the controller, and the shock generator (2) is started and the test results are entered through the terminal device.

9. The test device according to claim 1, characterized in that: The test device also includes a camera for photographing the firing process and post-firing state of the bullet primer in the cartridge (31).

10. The test device according to claim 1, characterized in that: The tested bullet placed in the cartridge box (31) has its bullet head and propellant removed.

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