Sampling device suitable for pressure aerosol can

Abstract

The utility model discloses a sampling device suitable for a pressure aerosol can, which comprises a sampling tank body, a gas outlet arranged at the top of the sampling tank body, a liquid outlet arranged at the bottom of the sampling tank body, and a sampler arranged on the side wall of the sampling tank body, the tank body fixing cylinder is a container with a cavity, one end of the container is sealed, the other end of the container is open, the sealing cover is located at the open end of the tank body fixing cylinder and detachably connected with the tank body fixing cylinder, and the locking bolt penetrates through the sealing cover and is fixedly connected with the tank body top plate in the tank body fixing cylinder. And the position of the tank body top plate extending into the tank body fixing cylinder can be changed by rotating the locking bolt. The sampling device provided by the utility model avoids dangers and problems possibly caused by punching and sampling, and is safe, portable and convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of sampling devices for detection, in particular to a sampling device suitable for a pressure aerosol can. Background Art

[0002] At present, there are a series of pressurized products on the market, such as food-grade atomized silicone oil, cleaning agents, air fresheners, insecticides, etc. The products are mainly composed of aerosol cans, propellants and main functional liquids. The propellant is the source of the spray power of the aerosol, and can also be used as a solvent or diluent for the drug. The propellant is mostly compressed liquefied gas, with a boiling point lower than room temperature at normal pressure and a high vapor pressure. When the valve is opened, the pressure suddenly drops, the propellant vaporizes rapidly, and the drug in the container is sprayed out in a mist by the pressure of the propellant. At present, inspection and testing of the propellant and the main functional liquid in the aerosol can has become a hot topic, but how to take out the propellant and the main functional liquid from the can separately has become a major problem for experimenters.

[0003] Currently, the public sampling structures mostly use punching sampling, which will cause sample leakage and loss, affecting the accuracy of the test results. On the other hand, due to the high pressure in the aerosol can, punching may endanger the safety of the operator. More importantly, most of the gas in the can is flammable (such as liquefied petroleum gas), and punching may cause open flames and explosions. At the same time, punching sampling can only take liquids, but cannot collect gases. Random volatilization can also cause poisoning and pollute the atmosphere. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a sampling device for pressure aerosol cans, which is suitable for experimental personnel to sample products in finished aerosol cans, and is also suitable for law enforcement personnel to uniformly sample from multiple aerosol cans on site in the finished product warehouse of an enterprise. The technical solution of the utility model is as follows:

[0005] A sampling device suitable for a pressure aerosol can comprises a sampling can body, a gas outlet arranged at the top of the sampling can body, a liquid outlet arranged at the bottom of the sampling can body, and a sampler arranged on the side wall of the sampling can body, wherein the sampler comprises a can body fixing tube connected to the sampling can body, a sealing cover, a can body top plate, and a locking bolt, wherein the can body fixing tube is a container with a cavity which is sealed at one end and open at the other end, the sealing cover is located at the open end of the can body fixing tube and is detachably connected to the can body fixing tube, the locking bolt passes through the sealing cover and is fixedly connected to the can body top plate inside the can body fixing tube, and rotating the locking bolt can change the position of the can body top plate extending into the can body fixing tube.

[0006] Preferably, a pressing sampling rod is provided at one end of the tank body fixing tube connected to the sampling tank body, and the pressing sampling rod passes through the tank body fixing tube and the connecting plate and is inserted into the sampling tank body.

[0007] Preferably, the push sampling rod is a cylindrical cavity structure, and the inner diameter is larger than the outer diameter of the nozzle of the aerosol can to be tested.

[0008] The sampling tank body is a cylindrical barrel, and can also adopt a polygonal structure such as a cube.

[0009] Furthermore, a connecting plate is provided between the tank body fixing tube and the sampling tank body, wherein the connecting plate is integrally formed with the sampling tank body and is detachably connected to the tank body fixing tube.

[0010] Preferably, the sampling tank body is spherical, which ensures that the pressure inside the tank body is uniform and improves the pressure resistance.

[0011] Furthermore, the sampling tank is made of transparent material.

[0012] Preferably, a gas combustion port is also provided on the top of the sampling tank body for eliminating combustible gas.

[0013] Furthermore, the gas outlet, gas combustion port and liquid outlet are respectively provided with pipelines with switch valves.

[0014] Furthermore, a liquid adding port is arranged at the top of the sampling tank body, and a sealing cover is arranged at the liquid adding port for adding solvent for flushing.

[0015] A handle is arranged on the top of the sampling tank body, and legs are arranged at the bottom, so that the structure is portable.

[0016] Scale lines are set on the sampling tank according to the volume to facilitate observation of the sampling volume.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The sampling device provided by the utility model, the sampling tank body can be considered as a buffer device, so that the gas and liquid in the aerosol pressure tank can completely enter the device under its own high pressure. After the device is left to stand, the gas and liquid are respectively discharged from different outlets to play a separation role.

[0019] 2. This device avoids the dangers that may be caused by punching sampling and provides a new idea for aerosol can sampling.

[0020] 3. This device is safe and portable, suitable for laboratory sampling, law enforcement sampling and other scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0022] Figure 1 The external structure diagram of the pressure aerosol can sampling device provided by the utility model;

[0023] Figure 2 A sectional view from a main perspective of a pressure aerosol can sampling device provided by the utility model;

[0024] Figure 3 A schematic diagram of the connection between the pressure aerosol can sampling device and the aerosol can provided by the utility model;

[0025] Figure 4 This is a diagram of the structure of a common aerosol can.

[0026] 1-aerosol can body, 101-nozzle, 102-pressing cover, 103-pressing part;

[0027] 2-sampling tank, 201-gas outlet, 202-gas combustion port, 203-liquid outlet, 204-sampler, 205-liquid filling port, 206-handle, 207-connecting plate;

[0028] 2041-tank fixing cylinder, 2042-sealing cover, 2043-tank top plate, 2044-locking bolt, 2045-press sampling rod, 2046-scale line. DETAILED DESCRIPTION

[0029] It should be noted that the following detailed descriptions are exemplary and are intended to provide further description of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Common aerosol can structures such as Figure 4 As shown, it includes an aerosol can body 1 and a spray head arranged on the top of the aerosol can body 1, including a nozzle 101, an aerosol valve and a pressing cover 102. The aerosol valve includes a pressing part 103. When in use, the pressing cover 102 presses the pressing part 103 and moves downward, and the aerosol is sprayed from the nozzle 101.

[0032] The common structure of the nozzle can be found in the patent publication "A direct spray nozzle for an aerosol can" (application number: CN201510427333.7), which will not be elaborated here.

[0033] The utility model provides a sampling device suitable for pressure aerosol cans, such as Figure 1 As shown, it is a transparent spherical tank, including a spherical sampling tank body 2, and a gas outlet 201 and a gas burner 202 arranged at the top of the sampling tank body 2, a liquid outlet 203 arranged at the bottom of the sampling tank body 2, and a sampler 204 and a liquid filling port 205 arranged on the side wall of the sampling tank body. A handle 206 is arranged on the top of the sampling tank body 2. The liquid filling port 205 is used to add a solvent to wash the inner wall of the sampling tank body 2.

[0034] The gas outlet 201, the gas combustion port 202, and the liquid outlet 203 are respectively provided with pipelines with switch valves.

[0035] The liquid filling port 205 is provided with a sealing cover.

[0036] The sampling tank body 2 is made of corrosion-resistant and pressure-resistant resin, and transparent materials such as PVC and PETG can be selected.

[0037] like Figure 2 As shown, the sampler 204 includes a tank body fixing cylinder 2041 fixedly connected to the sampling tank body 2, as well as a sealing cover 2042, a tank body top plate 2043, and a locking bolt 2044. The tank body fixing cylinder 2041 is a container with a cavity which is sealed at one end and open at the other end. In this embodiment, a cylindrical cylinder is adopted, and a polygonal structure such as a cube can also be adopted; the sealing cover 2042 is located at the open end of the tank body fixing cylinder 2041, and is connected to the tank body fixing cylinder 2041 through a threaded structure. The locking bolt 2044 passes through the sealing cover 2042 and is fixedly connected to the tank body top plate 2043 inside the tank body fixing cylinder 2041. Rotating the locking bolt 2044 can change the position of the tank body top plate 2043 extending into the tank body fixing cylinder 2041.

[0038] In order to make the connection between the tank body fixing cylinder 2041 and the sampling tank body 2 more secure, a connecting plate 207 is provided between the tank body fixing cylinder 2041 and the sampling tank body 2. The connecting plate 207 is integrally formed with the sampling tank body 2 and is fixedly connected to the tank body fixing cylinder 2041 by screws or bonding. The tank body fixing cylinder 2041 can be replaced according to the size of the aerosol can to be detected, thereby being suitable for the detection of aerosol cans of different volumes.

[0039] like Figure 2 and Figure 3As shown, a pressing sampling rod 2045 is provided at one end of the tank body fixing cylinder 2041 connected to the sampling tank body 2, and the pressing sampling rod 2045 passes through the tank body fixing cylinder 2041 and the connecting plate 207, and is inserted into the sampling tank body 2. The pressing sampling rod 2045 is a cylindrical cavity structure, and its inner diameter is larger than the outer diameter of the nozzle of the aerosol can to be detected. On the one hand, it serves as a passage for the contents of the aerosol can to enter the sampling tank body 2, and on the other hand, the pressing sampling rod 2045 protrudes from the inner wall of the tank body fixing cylinder 2041 and contacts the pressing part 103 of the aerosol can. When the aerosol can is pushed toward one end of the sampling tank body by the locking bolt 2044, the pressing sampling rod 2045 presses the pressing part 103, thereby causing the contents of the aerosol can to be sprayed out.

[0040] In addition, legs are arranged at the lower part of the sampling tank body 2, so the structure is portable.

[0041] When using, Figure 3 As shown, the push caps 102 are removed from the randomly selected finished aerosol cans 1, and they are inserted into the tank body fixing tube 2041 one by one. The nozzle 101 is embedded in the push sampling rod 2045, and the sealing cap 2042 and the tank body fixing tube 2041 are tightened through the threaded structure. The locking bolt 2044 is rotated to push the aerosol can 1 further inward, and the push sampling rod 2045 applies a reaction force to the pressing part 103 of the aerosol can, so that the contents of the aerosol can are sprayed out and enter the sampling tank body 2.

[0042] After all the ingredients in the tank are filled into the sampling device, it is left to stand for a while, and the gas sample is discharged into the gas bag from the gas outlet 201, and the liquid sample is discharged into the sampling barrel from the liquid outlet 203. If the pressure in the sampling tank is relatively high and the ingredients in the aerosol tank cannot automatically enter the sampling device due to pressure, the pressure in the sampling tank should be discharged first before continuing sampling, or sampling can be carried out in batches.

[0043] If the gas in the tank does not need to be sampled and does not pollute the environment, it can be directly discharged into the air; if it is toxic and harmful gas, it can be discharged after burning at the gas combustion port 202.

[0044] Graduation lines 2046 are set on the sampling tank 2 according to the volume to facilitate observation of the sampling amount.

[0045] Since there is a high pressure in the aerosol can, the sampling device provided in the present application serves as a buffer structure to release the pressure in the aerosol can on the one hand, and as a sampling device to temporarily store the contents on the other hand. The sampling device is spherical, so that the pressure in each part of the can is equal, and it is not easy to break the can. The sampling device is transparent, and the amount of liquid and gas in the can can be clearly seen, which is convenient for observation; the coordination between the tank body fixing tube 2041 and the sealing cover is adjustable, and it is suitable for pressure cans of various specifications and models, and the design of the sampling rod 2045 pressing the interface can just press the inner tube of the aerosol can mouth, so that both gas and liquid enter the sampling can body. It can achieve an automatic switch effect, and it automatically opens when the aerosol can is docked, and automatically closes when it is unplugged.

[0046] The above description is only a preferred example of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sampling device suitable for pressure aerosol cans, characterized in that: The invention comprises a sampling tank body, a gas outlet arranged on the top of the sampling tank body, a liquid outlet arranged on the bottom of the sampling tank body, and a sampler arranged on the side wall of the sampling tank body, wherein the sampler comprises a tank body fixing tube connected to the sampling tank body, a sealing cover, a tank body top plate, and a locking bolt, wherein the tank body fixing tube is a container with a cavity which is sealed at one end and open at the other end, wherein the sealing cover is located at the open end of the tank body fixing tube and is detachably connected to the tank body fixing tube, wherein the locking bolt passes through the sealing cover and is fixedly connected to the tank body top plate inside the tank body fixing tube, and rotating the locking bolt can change the position of the tank body top plate extending into the tank body fixing tube; a pressing sampling rod is arranged at one end of the tank body fixing tube connected to the sampling tank body, and the pressing sampling rod passes through the tank body fixing tube and the connecting plate and is inserted into the sampling tank body.

2. A sampling device suitable for a pressure aerosol can according to claim 1, characterized in that: The push sampling rod is a cylindrical cavity structure, and the inner diameter is larger than the outer diameter of the nozzle of the aerosol can to be tested.

3. A sampling device suitable for a pressure aerosol can according to claim 1, characterized in that: A connecting plate is arranged between the tank body fixing cylinder and the sampling tank body. The connecting plate is integrally formed with the sampling tank body and is detachably connected to the tank body fixing cylinder.

4. A sampling device suitable for a pressure aerosol can according to claim 1, characterized in that: The sampling tank body is spherical.

5. The sampling device for pressure aerosol cans according to claim 1, characterized in that: The sampling tank body is made of transparent material.

6. The sampling device for pressure aerosol cans according to claim 1, characterized in that: A gas combustion port is also arranged on the top of the sampling tank.

7. A sampling device suitable for a pressure aerosol can according to claim 6, characterized in that: The gas outlet, the gas combustion port and the liquid outlet are respectively provided with pipelines with switch valves.

8. The sampling device for pressure aerosol cans according to claim 1, characterized in that: A liquid filling port is arranged on the top of the sampling tank body, and a sealing cover is arranged on the liquid filling port.

9. The sampling device for pressure aerosol cans according to claim 1, characterized in that: A handle is arranged on the top of the sampling tank body, and supporting legs are arranged at the bottom.

10. The sampling device for pressure aerosol cans according to claim 1, characterized in that: Set graduation marks on the sampling tank.

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