Portable chemical liquid sampler

Abstract

The utility model relates to the technical field of sampling equipment, in particular to a portable chemical liquid sampler which comprises a sampling bottle for sampling chemical liquid, a control box is mounted at the top of the sampling bottle, and a liquid conveying pipe is mounted in the center of the sampling bottle. According to the utility model, the air pump is responsible for extracting air from the inside of the sampling bottle to form a negative pressure environment which is crucial in the sampling process, and chemical liquid is safely and quickly sucked into the sampling bottle in a negative pressure suction manner, so that the safety risk possibly caused by direct contact with the liquid is avoided, and meanwhile, the sampling accuracy and reliability are also ensured; gas can be injected into the sampling bottle through the arranged inflator pump, a positive pressure environment is formed, liquid can be easily pushed to flow out of the sampling bottle by increasing internal pressure, when the internally sampled liquid is discharged, detected or transferred, the liquid can be easily pushed to flow out by increasing the internal pressure, the operation process is greatly simplified, and the working efficiency is improved. The working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling equipment, in particular to a portable chemical liquid sampler. Background Art

[0002] In the chemical industry, liquid sampling is an important link in quality control, component analysis, and production monitoring. Traditional chemical liquid samplers often rely on direct operation or complex mechanical structures to achieve sampling, which not only increases the safety risks of operators but also may lead to inaccurate sampling results or liquid leakage due to improper operation. Traditional samplers often require operators to directly contact chemical liquids, increasing safety risks such as chemical burns and poisoning. Some samplers may produce splashes or leaks during the sampling process, further exacerbating the insecurity of the operating environment. Content of the Utility Model

[0003] The purpose of the utility model is to provide a portable chemical liquid sampler to solve the problems in the above background art that the existing chemical sampling not only increases the safety risks of operators but also may lead to inaccurate sampling results or liquid leakage due to improper operation.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A portable chemical liquid sampler includes a sampling bottle for sampling chemical liquids. A control box is installed at the top of the sampling bottle, and an infusion tube is installed at the center of the sampling bottle;

[0006] The control box is internally provided with an air inflation pump and an air extraction pump. Ventilation mesh holes for the air inlet of the air inflation pump and the air outlet of the air extraction pump are symmetrically opened on both sides of the control box. The inflation tube of the air inflation pump is communicated with the inside of the sampling bottle, and the extraction tube of the air extraction pump is communicated with the inside of the sampling bottle;

[0007] The infusion tube is communicated with the inside of the sampling bottle through an insertion tube. The bottom of the insertion tube is inserted into the inner bottom of the sampling bottle and there is a gap.

[0008] Preferably, the sampling bottle is made of transparent glass, and scale lines are provided on the outer wall of the sampling bottle.

[0009] Preferably, the top of the sampling bottle is an open structure, and a sealing piston is installed at the opening.

[0010] Preferably, a single-pole triple-throw switch for controlling the switches of the air inflation pump and the air extraction pump is installed on the top surface of the control box.

[0011] Preferably, a storage battery for supplying power to the air inflation pump and the air extraction pump is also installed in the control box.

[0012] Preferably, the gap between the inserted pipe and the inner bottom of the sampling bottle is 5-8 mm.

[0013] Preferably, one end of the infusion tube away from the inserted pipe is provided with a stretchable bellows.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. In this portable chemical liquid sampler, the air pump is responsible for extracting gas from the inside of the sampling bottle to form a negative pressure environment, which is crucial during the sampling process. By means of negative pressure suction, the chemical liquid can be safely and quickly sucked into the sampling bottle, avoiding the safety risks that may be brought by direct contact with the liquid. At the same time, it also ensures the accuracy and reliability of sampling. The air inflation pump can inject gas into the sampling bottle to form a positive pressure environment, and it can easily push the liquid out of the sampling bottle by increasing the internal pressure. When discharging and detecting or transferring the sampled liquid inside, it can easily push the liquid out by increasing the internal pressure, greatly simplifying the operation process and improving work efficiency.

[0016] 2. In this portable chemical liquid sampler, the sampling bottle is made of transparent glass, and scale lines are provided on the outer wall of the sampling bottle. The sampling bottle made of transparent glass enables the operator to directly observe the state, color, and liquid level height of the internal liquid, facilitating preliminary judgment and analysis. The setting of the scale lines further facilitates the operator to accurately read the sampling volume, improving the accuracy and repeatability of sampling.

[0017] 3. In this portable chemical liquid sampler, a single-pole triple-throw switch for controlling the switches of the air inflation pump and the air pump is installed on the top surface of the control box, allowing the operator to conveniently select the on or off state of the air inflation pump and the air pump, as well as the possible interruption position, improving the operation convenience and safety of the equipment. A storage battery for supplying power to the air inflation pump and the air pump is also installed inside the control box, enabling the sampler to work independently in an environment without an external power source. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are further explained in detail together with the embodiments of the present utility model, but do not constitute a limitation to the present utility model.

[0019] Figure 1 is the structural schematic diagram of the present utility model;

[0020] Figure 2 is the cross-sectional structural schematic diagram of the present utility model;

[0021] Figure 3 is the circuit control schematic diagram of sampling and liquid discharging of the present utility model.

[0022] The meanings of the reference numerals in the figure:

[0023] 10. Sampling bottle; 11. Scale line; 12. Sealing piston;

[0024] 20. Control box; 21. Ventilation mesh; 22. Inflation pump; 23. Exhaust pump; 24. Storage battery; 25. Exhaust pipe; 26. Inflation pipe;

[0025] 30. Infusion tube; 31. Bellows; 32. Insertion tube;

[0026] 40. Single-pole triple-throw switch. Specific implementation manner

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model and the accompanying drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0029] A portable chemical liquid sampler, such as Figures 1 - 3As shown in the figure, it includes a sampling bottle 10 for chemical liquid sampling. A control box 20 is installed at the top of the sampling bottle 10, and an infusion tube 30 is installed at the center of the sampling bottle 10. An air inflation pump 22 and an air extraction pump 23 are built into the control box 20. Ventilation mesh holes 21 for the intake of the air inflation pump 22 and the exhaust of the air extraction pump 23 are symmetrically arranged on both sides of the control box 20. The inflation tube 26 of the air inflation pump 22 is connected to the inside of the sampling bottle 10, and the extraction tube 25 of the air extraction pump 23 is connected to the inside of the sampling bottle 10. The infusion tube 30 is connected to the inside of the sampling bottle 10 through an insertion tube 32. The bottom of the insertion tube 32 is inserted into the inner bottom of the sampling bottle 10 with a gap. The air extraction pump 23 set is responsible for extracting gas from the inside of the sampling bottle 10 to form a negative pressure environment, which is crucial during the sampling process. By means of negative pressure suction, the chemical liquid can be safely and quickly sucked into the sampling bottle, avoiding the safety risks that may be brought by direct contact with the liquid. At the same time, it also ensures the accuracy and reliability of sampling. The air inflation pump 22 set can inject gas into the inside of the sampling bottle 10 to form a positive pressure environment. When discharging and detecting or transferring the sampled liquid inside, it can easily push the liquid out by increasing the internal pressure, greatly simplifying the operation process and improving work efficiency.

[0030] It is worth noting that control valves for control are installed on the extraction tube 25 and the inflation tube 26, which can precisely control the working states of the air extraction pump 23 and the air inflation pump 22, that is, when to start sucking or inflating, and when to stop.

[0031] Furthermore, the sampling bottle 10 is made of transparent glass, and scale lines 11 are provided on the outer wall of the sampling bottle 10. The sampling bottle 10 made of transparent glass enables the operator to directly observe the state, color, and liquid level height of the internal liquid, facilitating preliminary judgment and analysis. The setting of the scale lines 11 further facilitates the operator to accurately read the sampling volume, improving the accuracy and repeatability of sampling.

[0032] Specifically, the top of the sampling bottle 10 is an open structure, and a sealing piston 12 is installed at the opening, making the sampling bottle 10 easy to clean and maintain, and at the same time providing convenience for sampling operations.

[0033] Among them, a single-pole triple-throw switch 40 for controlling the switches of the air inflation pump 22 and the air extraction pump 23 is installed on the top surface of the control box 20, allowing the operator to conveniently select the on or off states of the air inflation pump 22 and the air extraction pump 23, as well as possible interruption positions, improving the operation convenience and safety of the equipment. A storage battery 24 for providing power to the air inflation pump 22 and the air extraction pump 23 is also installed inside the control box 20, enabling the sampler to work independently in an environment without an external power supply.

[0034] It should be noted that the gap between the insertion tube 32 and the inner bottom of the sampling bottle 10 is 5-8 mm, which not only ensures the effective connection between the infusion tube 30 and the inside of the sampling bottle 10, but also avoids problems such as blockage or abnormal pressure that may be caused by complete contact.

[0035] In addition, a stretchable and deformable corrugated tube 31 is installed at one end of the infusion tube 30 far from the insertion tube 32, allowing the operator to adjust the length and shape of the tube according to needs, so as to adapt to different working environments and sampling requirements.

[0036] The working principle of this portable chemical liquid sampler:

[0037] (1) Preparation stage:

[0038] Ensure that the sampling bottle 10 is clean and residue-free, and has been correctly installed in the chemical liquid environment where sampling is required.

[0039] Check whether the air pump 22 and the air extraction pump 23 in the control box 20 are in good working condition, and the ventilation mesh holes 21 are unblocked.

[0040] Confirm that the infusion tube 30 and its insertion tube 32 are tightly connected, and the bottom of the insertion tube 32 has been inserted into the inner bottom of the sampling bottle 10 and maintains an appropriate gap.

[0041] (2) Form a negative pressure environment for sampling:

[0042] Start the air extraction pump 23 (through the corresponding switch on the control box 20), and the air extraction tube 25 of the air extraction pump 23 begins to extract gas from the inside of the sampling bottle 10.

[0043] As the gas is extracted, a negative pressure environment gradually forms inside the sampling bottle 10.

[0044] Under the action of the negative pressure, the external chemical liquid is safely and quickly sucked into the sampling bottle 10 through the infusion tube 30 and the insertion tube 32 until the required sampling amount is reached.

[0045] Turn off the air extraction pump 23 and stop the air extraction operation.

[0046] (3) Processing after sampling:

[0047] If necessary, it is possible to confirm whether the sampling is completed by observing the liquid volume in the sampling bottle 10 or using other methods.

[0048] After confirming that the sampling is completed, seal the sampling bottle 10 in time to prevent liquid volatilization or contamination.

[0049] (4) Form a positive pressure environment to discharge the liquid (if liquid detection or transfer is required):

[0050] Start the air pump 22 (also through the corresponding switch on the control box 20), and the air charging pipe 26 of the air pump 22 starts to inject gas into the sampling bottle 10.

[0051] As the gas is injected, a positive pressure environment gradually forms inside the sampling bottle 10.

[0052] Under the action of the positive pressure, the chemical liquid in the sampling bottle 10 is pushed out and flows out through the infusion tube 30, facilitating subsequent liquid detection or transfer work.

[0053] Control the amount of inflated gas as needed, and ensure to turn off the air pump 22 after the liquid is completely discharged.

[0054] (5) Cleaning and maintenance:

[0055] After completing sampling and liquid discharge, promptly clean components such as the sampling bottle 10, infusion tube 30, connecting tube 32, and control box 20 to ensure there is no residual liquid.

[0056] Check whether each component is damaged or worn, and replace or repair if necessary.

[0057] Store the sampler properly in a dry, ventilated environment without corrosive gases for future use.

[0058] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A portable chemical liquid sampler, comprising a sampling bottle (10) for sampling chemical liquids, characterized in that: A control box (20) is installed at the top of the sampling bottle (10), and an infusion tube (30) is installed at the center of the sampling bottle (10). An air inflation pump (22) and an air extraction pump (23) are built in the control box (20). Ventilation mesh holes (21) for the air inlet of the air inflation pump (22) and the air outlet of the air extraction pump (23) are symmetrically arranged on both sides of the control box (20). The air inflation tube (26) of the air inflation pump (22) is communicated with the inside of the sampling bottle (10), and the air extraction tube (25) of the air extraction pump (23) is communicated with the inside of the sampling bottle (10). The infusion tube (30) is communicated with the inside of the sampling bottle (10) through an insertion tube (32). The bottom of the insertion tube (32) is inserted into the inner bottom of the sampling bottle (10) with a gap.

2. The portable chemical liquid sampler according to claim 1, wherein: The sampling bottle (10) is made of transparent glass, and scale lines (11) are provided on the outer wall of the sampling bottle (10).

3. The portable chemical liquid sampler according to claim 1, wherein: The top of the sampling bottle (10) is of an open structure, and a sealing piston (12) is installed at the opening.

4. The portable chemical liquid sampler according to claim 1, wherein: A single-pole triple-throw switch (40) for controlling the switches of the air inflation pump (22) and the air extraction pump (23) is installed on the top surface of the control box (20).

5. The portable chemical liquid sampler according to claim 4, characterized in that: A storage battery (24) for supplying power to the air inflation pump (22) and the air extraction pump (23) is also installed in the control box (20).

6. The portable chemical liquid sampler according to claim 1, characterized in that: The gap between the insertion tube (32) and the inner bottom of the sampling bottle (10) is 5 - 8 mm.

7. The portable chemical liquid sampler according to claim 1, wherein: A stretchable and deformable corrugated tube (31) is installed at one end of the infusion tube (30) far from the insertion tube (32).

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