Sampling device for gunpowder detection

Abstract

The sampling device for gunpowder detection comprises an installation box, a partition plate is fixed in the installation box, an inner cavity of the installation box is divided into an installation cavity and a sampling cavity by the partition plate, an air draft assembly is arranged in the installation cavity, a first installation opening is formed in the side face of the partition plate, and a filter screen is installed in the first installation opening; a second mounting opening is formed in the side surface of the mounting box, a protective net is mounted in the second mounting opening, and a mounting cylinder is fixed in the sampling cavity. The sampling device for gunpowder detection can be used for gunpowder sampling at different depth positions, multiple times of fixed-point sampling are facilitated, a control group is set, the accuracy of detection data is improved, when the sampling device is inserted into a deep layer for gunpowder sampling, gunpowder is not prone to entering the sampling device in the insertion process, fixed-point sampling of the gunpowder is facilitated, and the sampling efficiency is improved. The sampling amount can be set at will according to detection requirements, repeated insertion is not needed, and the sampling precision and the sampling efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fireworks detection, in particular to a sampling device for gunpowder detection. Background Technique

[0002] As one of the important components of fireworks, the ingredient ratio of gunpowder is often closely related to the safety and quality of fireworks. Therefore, the detection of gunpowder is of great significance. The detection of gunpowder includes the determination of sulfur and carbon content, the thermal analysis of pyrotechnic compositions and their raw materials, the determination of the heat of substances, the determination of trace components in pyrotechnic compositions and other materials, the determination of the thermal stability and moisture of gunpowder, the determination of organic components, etc. For the convenience of gunpowder detection, it is necessary to sample gunpowder.

[0003] The common sampling device is a sampling cup, which is usually only suitable for sampling the surface gunpowder and is not convenient for sampling the deep-layer gunpowder. When sampling the deep-layer gunpowder through a sampling tube, some gunpowder will enter the sampling tube during the insertion process of the sampling tube, affecting the sampling of the deep-layer gunpowder. And when sampling gunpowder through a sampling tube, if it is necessary to establish a control group for a large amount of gunpowder sampling, multiple insertions are required, resulting in low sampling efficiency and inconvenience for gunpowder detection sampling. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a sampling device for gunpowder detection, which can be used for sampling gunpowder at different depth positions, is convenient for multiple fixed-point sampling to set up a control group, improves the accuracy of detection data, and when the sampling device is inserted deep to sample gunpowder, gunpowder is not easy to enter the sampling device during the insertion process, which is convenient for fixed-point sampling of gunpowder, and the sampling amount can be arbitrarily set according to the detection requirements without multiple insertions, improving the sampling accuracy and sampling efficiency, and can effectively solve the problems in the background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: A sampling device for gunpowder detection, including an installation box, a partition board is fixed in the installation box, and the partition board divides the inner cavity of the installation box into an installation cavity and a sampling cavity. A ventilation component is arranged in the installation cavity. A first installation opening is formed on the side surface of the partition board, and a filter screen is installed in the first installation opening. A second installation opening is formed on the side surface of the installation box, and a protective net is installed in the second installation opening. An installation cylinder is fixed in the sampling cavity, and a sampling opening communicating with the inner cavity of the installation cylinder is formed on the side surface of the installation box. A sampling tube is installed at a position close to the sampling opening on the outer side of the installation box. The inner diameter of the sampling tube is the same as the inner diameter of the installation cylinder. A sealing piston is slidably arranged in the sampling tube. A positioning spring is arranged in the installation cylinder. A discharge port is formed on the side surface of the installation cylinder close to the sampling tube.

[0006] As a preferred technical solution of the present utility model, the exhaust component includes a blower box, and a blower group is installed in the blower box. A switch for controlling the operation of the blower group is installed outside the installation box.

[0007] As a preferred technical solution of the present utility model, a battery pack for supplying power to the blower group is installed in the installation cavity, and a charging port for charging the battery pack is provided on the side of the installation box.

[0008] As a preferred technical solution of the present utility model, a collection port is opened on the side of the installation box corresponding to the sampling cavity, and a collection box located in the sampling cavity is slidably arranged in the collection port. The collection box is located below the discharge port on the side of the installation cylinder, and the upper side of the collection box is open.

[0009] As a preferred technical solution of the present utility model, a positioning tube is fixed at a position on the outside of the installation box close to the sampling port. The sampling tube is installed in the positioning tube, and the positioning tube is detachably arranged. A limiting plate for limiting the sealing piston is provided at one end of the sampling tube away from the installation box.

[0010] As a preferred technical solution of the present utility model, a connecting rod is slidably arranged on the upper side of the installation box. One end of the connecting rod is installed with a cleaning plate located inside the installation box, and the cleaning plate is in contact with the side of the filter screen. The other end of the connecting rod is installed with a pressing plate located outside the installation box. A limiting spring is sleeved on the outside of the connecting rod, and the limiting spring is located between the pressing plate and the installation box.

[0011] As a preferred technical solution of the present utility model, a handle is fixed on the upper side of the installation box.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The sampling device for gunpowder detection according to the example of the present utility model can be used for sampling gunpowder at different depth positions, facilitating multiple fixed-point sampling to set up a control group, improving the accuracy of detection data. Moreover, when the sampling device is inserted deep into the gunpowder for sampling, gunpowder is not easily introduced into the sampling device during the insertion process, facilitating fixed-point sampling of gunpowder, and the sampling amount can be arbitrarily set according to the detection requirements without multiple insertions, improving the sampling accuracy and sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0016] Figure 3 is Figure 2 the front view structural diagram of

[0017] Figure 4 For Figure 3 the enlarged structural schematic diagram at position A in

[0018] Figure 5 the structural schematic diagram after removing the blower box in the installation box;

[0019] Figure 6 the structural schematic diagram of the blower box in the present utility model.

[0020] In the figure: 1 installation box, 2 partition board, 3 blower box, 4 blower group, 5 filter screen, 6 battery pack, 7 collection box, 8 installation cylinder, 9 positioning spring, 10 positioning tube, 11 sampling tube, 12 sealing piston, 13 limiting plate, 14 connecting rod, 15 cleaning board, 16 limiting spring, 17 pressing plate, 18 handle, 19 protection net. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-6 , the present utility model provides a technical solution: a sampling device for gunpowder detection, including an installation box 1, a handle 18 is fixed on the upper side of the installation box 1, and the provided handle 18 facilitates the carrying and use of this sampling device. A partition board 2 is fixed in the installation box 1, and the partition board 2 divides the inner cavity of the installation box 1 into an installation cavity and a sampling cavity. An air extraction component is arranged in the installation cavity. The air extraction component includes a blower box 3, and a blower group 4 is installed in the blower box 3. A switch for controlling the operation of the blower group 4 is installed on the outside of the installation box 1.

[0023] A first installation opening is formed on the side surface of the partition board 2, and a filter screen 5 is installed in the first installation opening. A second installation opening is formed on the side surface of the installation box 1, and a protection net 19 is installed in the second installation opening. The first installation opening and the second installation opening also play a role in ventilation, facilitating the air extraction by the blower group 4 to flow in the installation cavity and the collection cavity. An installation cylinder 8 is fixed in the sampling cavity, and a sampling opening communicating with the inner cavity of the installation cylinder 8 is formed on the side surface of the installation box 1. A sampling tube 11 is installed at a position on the outside of the installation box 1 close to the sampling opening. The inner diameter of the sampling tube 11 is the same as the inner diameter of the installation cylinder 8. A sealing piston 12 is slidably arranged in the sampling tube 11. A positioning spring 9 is arranged in the installation cylinder 8. A discharge port is formed on the side surface of the installation cylinder 8 close to the sampling tube 11.

[0024] When in use, the sampling tube 11 is inserted into the gunpowder, and the insertion depth can be controlled according to the sampling and detection requirements. When the sampling tube 11 is inserted into the gunpowder, the sealing piston 12 installed in the sampling tube 11 blocks and seals the end of the sampling tube 11 to prevent gunpowder from entering the sampling tube 11 during the insertion process, so that the sampling device can be inserted to the required depth to perform fixed-point sampling of the gunpowder.

[0025] During sampling, the fan unit 4 is controlled by the switch to work, and the fan unit 4 extracts the air flow in the sampling chamber to reduce the pressure in the sampling chamber. Under the action of air pressure, the sealing piston 12 moves from the head end of the sampling tube 11 to the end of the sampling tube 11, and then enters the installation cylinder 8 through the sampling port, and the discharge port is connected with the inner cavity of the sampling tube 11. At this time, the fan unit 4 continues to draw air, so that the sampling tube 11 extracts gunpowder into the sampling chamber, and the fixed-point sampling of gunpowder is realized;

[0026] After sampling is completed, the fan unit 4 is turned off by the switch, and the air pressure force on the sealing piston 12 is reduced. When the air pressure force is less than the elastic force of the positioning spring 9, the sealing piston 12 is moved to the end of the sampling tube 11 by the thrust of the positioning spring 9 in the mounting tube 8. Then, the fan unit 4 is reversed by the switch control, so that the fan unit 4 draws external gas into the collecting chamber to increase the internal pressure of the collecting chamber, so that the sealing piston 12 is moved to the head end of the sampling tube 11 by the air pressure and its end is sealed to prevent gunpowder from entering the sampling tube 11 during the continued insertion process. The sampling device can sample any amount of gunpowder according to the detection requirements, and there is no need for repeated insertion, thereby improving the efficiency of gunpowder sampling and facilitating the detection of gunpowder.

[0027] A battery pack 6 for powering the fan group 4 is installed in the installation cavity. The battery pack 6 is a rechargeable battery, including but not limited to a lithium battery or a graphene battery, and a charging port for charging the battery pack 6 is provided on the side of the installation box 1. The battery pack 6 can be charged through the provided charging port, which facilitates the use of the sampling device. It should be noted that the fan group 4, battery pack 6, etc. used in the utility model are all commonly used electronic components in the prior art, and their working methods and circuit structures are all well-known technologies, which will not be elaborated here.

[0028] A collecting port is provided on the side of the installation box 1 at a position corresponding to the sampling cavity, and a collecting box 7 located in the sampling cavity is slidably arranged in the collecting port. The collecting box 7 is located below the discharge port on the side of the installation tube 8, and the upper side of the collecting box 7 is open. The gunpowder sucked into the sampling cavity by the fan unit 4 is collected and stored in the collecting box 7, which is convenient for the collection and processing of the gunpowder.

[0029] A positioning tube 10 is fixed at a position on the outer side of the installation box 1 near the sampling port. The sampling tube 11 is installed in the positioning tube 10, and the positioning tube 10 is detachably arranged. The connection and installation method between the sampling tube 11 and the positioning tube 10 includes but is not limited to threaded connection installation or snap connection installation. When this sampling device is used, sampling tubes 11 of different lengths can be replaced according to the volume of the gunpowder storage device, which is convenient for sampling gunpowder at different depths, facilitating the setting of multiple control groups for control experiments to ensure the quality of the gunpowder. A limiting plate 13 for limiting the sealing piston 12 is arranged at one end of the sampling tube 11 far from the installation box 1, and the limiting plate 13 prevents the sealing piston 12 from detaching from the sampling tube 11.

[0030] When the fan group 4 is in use, it drives gunpowder into the sampling cavity through air flow. The filter net 5 installed on the side of the partition plate 2 is used for filtering gunpowder in the air flow to prevent the gunpowder from being adsorbed by the fan group 4 into the installation cavity. A connecting rod 14 is slidably arranged on the upper side of the installation box 1. One end of the connecting rod 14 is installed with a cleaning plate 15 located inside the installation box 1, and the cleaning plate 15 is in contact with the side of the filter net 5. The other end of the connecting rod 14 is installed with a pressing plate 17 located outside the installation box 1. A limiting spring 16 is sleeved on the outer side of the connecting rod 14, and the limiting spring 16 is located between the pressing plate 17 and the installation box 1. By applying force to the pressing plate 17, the pressing plate 17 pushes the cleaning plate 15 to move downward through the connecting rod 14. During the movement of the cleaning plate 15, the gunpowder accumulated on the outer side of the filter net 5 is cleaned, facilitating the use of the filter net 5. The arranged limiting spring 16 facilitates the reset of the cleaning plate 15.

[0031] Parts not disclosed in this utility model are all prior arts, and their specific structures, materials and working principles will not be elaborated in detail. Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A sampling device for gunpowder detection, comprising an installation box (1), characterized in that: A partition board (2) is fixed inside the installation box (1), and the partition board (2) divides the inner cavity of the installation box (1) into an installation cavity and a sampling cavity. An air extraction component is arranged in the installation cavity. A first installation opening is formed in the side surface of the partition board (2), and a filter net (5) is installed in the first installation opening. A second installation opening is formed in the side surface of the installation box (1), and a protection net (19) is installed in the second installation opening. An installation cylinder (8) is fixed in the sampling cavity, and a sampling opening communicating with the inner cavity of the installation cylinder (8) is formed in the side surface of the installation box (1). A sampling pipe (11) is installed at a position on the outer side of the installation box (1) close to the sampling opening. The inner diameter of the sampling pipe (11) is the same as the inner diameter of the installation cylinder (8). A sealing piston (12) is slidably arranged in the sampling pipe (11). A positioning spring (9) is arranged in the installation cylinder (8). A discharge port is formed in the side surface of the installation cylinder (8) close to the sampling pipe (11).

2. The sampling device for gunpowder detection according to claim 1, characterized in that: The air extraction component includes a fan box (3), and a fan group (4) is installed in the fan box (3). A switch for controlling the operation of the fan group (4) is installed on the outer side of the installation box (1).

3. The sampling device for gunpowder detection according to claim 2, characterized in that: A battery pack (6) for supplying power to the fan group (4) is installed in the installation cavity, and a charging port for charging the battery pack (6) is arranged on the side surface of the installation box (1).

4. The sampling device for gunpowder detection according to claim 1, characterized in that: A collection port is formed in the side surface of the installation box (1) corresponding to the sampling cavity, and a collection box (7) located inside the sampling cavity is slidably arranged in the collection port. The collection box (7) is located below the discharge port on the side surface of the installation cylinder (8), and the upper side of the collection box (7) is open.

5. The sampling device for gunpowder detection according to claim 1, characterized in that: A positioning pipe (10) is fixed at a position on the outer side of the installation box (1) close to the sampling opening. The sampling pipe (11) is installed in the positioning pipe (10), and the positioning pipe (10) is detachably arranged. A limiting plate (13) for limiting the sealing piston (12) is arranged at one end of the sampling pipe (11) away from the installation box (1).

6. The sampling device for gunpowder detection according to claim 1, characterized in that: A connecting rod (14) is slidably arranged on the upper side of the installation box (1). One end of the connecting rod (14) is provided with a cleaning plate (15) located inside the installation box (1), and the cleaning plate (15) is in contact with the side surface of the filter net (5). The other end of the connecting rod (14) is provided with a pressing plate (17) located on the outer side of the installation box (1). A limiting spring (16) is sleeved on the outer side of the connecting rod (14), and the limiting spring (16) is located between the pressing plate (17) and the installation box (1).

7. The sampling device for gunpowder detection according to claim 1, characterized in that: A handle (18) is fixed on the upper side of the installation box (1).

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