Water sample collection bellows

Abstract

The utility model provides a kind of water sample collection belet, including sampling tube, the one end of sampling tube is connected with inlet pipe, support disc is set in inlet pipe, water inlet hole is opened in the middle part of the penetration support disc, the one side of support disc in inlet pipe is close to sampling tube and is provided with baffle disc, multiple through holes are opened in the penetration baffle disc, plug bead capable of plugging water inlet hole is movably set between support disc and baffle disc, limiting sleeve that baffle disc is provided with to the direction of water inlet hole is set with plug bead, multiple hollow holes are opened in the side wall of limiting sleeve, support spring is set between plug bead and baffle disc in limiting sleeve;It further includes water pump, water pump is provided with inlet pipe and outlet pipe, the one end of sampling tube away from inlet pipe is connected with the traction pipe communicated therewith.This utility model can automatically wash well when groundwater sampling, more time-saving and labor-saving.

Description

Technical Field

[0001] This utility model belongs to the technical field of deep water sampling equipment and relates to a water sample collection Beller tube. Background Technology

[0002] In the field of groundwater environmental monitoring, accurate collection of representative water samples is crucial for assessing the quality of groundwater resources. Traditionally, groundwater sampling relies on various equipment and techniques to ensure the authenticity and representativeness of the collected samples. However, with increasing environmental protection requirements and growing demands for higher precision in water quality analysis, traditional sampling methods have gradually revealed problems such as low efficiency, complex operation, and susceptibility to sample contamination.

[0003] A crucial step in groundwater sampling is well washing, which involves removing old water and any potential sediments or contaminants from the well to ensure that the collected samples accurately reflect the current water quality of the aquifer. According to the "HJ164-2020 Technical Specification for Groundwater Environmental Monitoring," a strict well washing procedure must be performed before water sampling. Well washing is a very important step in groundwater sampling. Its main purpose is to remove old water and any potential sediments or contaminants from the well, ensuring that the collected groundwater samples accurately reflect the current water quality of the aquifer.

[0004] Against this backdrop, the Bayler tube, as a commonly used groundwater sampling tool, is widely used in field operations due to its simple structure and portability. The Bayler tube agitates the well water by moving it up and down in a simple physical manner, drawing it to the surface to collect groundwater samples. However, existing Bayler tube designs primarily rely on manual operation to complete the entire sampling process, including placing the Bayler tube to a specific depth in the well and manually pulling it out to collect the water sample. This entirely manual operation mode is extremely time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of this invention is to provide a water sample collection belle tube that can quickly and automatically wash the well during groundwater sampling, saving more time and effort.

[0006] To solve the above-mentioned technical problems, this utility model provides a water sample collection Beller tube, including a sampling tube, one end of which is connected to a water inlet pipe. A support plate is provided inside the water inlet pipe, and a water inlet hole is opened through the middle of the support plate. A baffle plate is provided inside the water inlet pipe on the side of the support plate closer to the sampling tube, and multiple through holes are opened through the baffle plate. A plugging bead that can block the water inlet hole is movably arranged between the support plate and the baffle plate. A limiting sleeve that fits the plugging bead is provided on the baffle plate towards the water inlet hole. Multiple hollow holes are opened on the side wall of the limiting sleeve. A supporting spring is provided inside the limiting sleeve between the plugging bead and the baffle plate.

[0007] It also includes a water pump, which is equipped with an inlet pipe and an outlet pipe, and the end of the sampling pipe away from the water inlet pipe is connected to the inlet pipe and has a traction pipe communicating with it.

[0008] By adopting the above technical solution, when sampling groundwater, first connect the traction pipe to the sampling pipe and connect the water pump to a portable power source. Use the traction pipe to lower the sampling pipe into the well. After reaching the designated depth, control the water pump to rotate forward to generate negative pressure in the sampling pipe. Under the action of negative pressure, the plugging bead moves upward without blocking the water inlet. Water flows into the sampling pipe through the water inlet, then into the water pump through the traction pipe, and finally out of the outlet pipe. Test the extracted water for key water quality parameters (such as pH value, conductivity, temperature, dissolved oxygen, etc.). When these parameters tend to stabilize, it indicates that the water in the well has been fully exchanged. At this time, the water pump can be stopped, and the sampling pipe can be lifted upward through the traction pipe. After the water pump stops working, the negative pressure in the sampling pipe is removed, and the support spring pushes the plugging bead to block the water inlet, preventing water from flowing out when lifting. Finally, remove the water inlet pipe, and the water in the sampling pipe can be poured out.

[0009] The present invention is further configured such that the water inlet pipe is provided with a connecting pipe extending into and connected to the sampling pipe.

[0010] The present invention is further configured such that the connecting tube is threadedly connected to the sampling tube.

[0011] The present invention is further configured such that a connecting cap is threaded to one end of the sampling tube away from the water inlet pipe, and a connecting hole is provided through the connecting cap, wherein the connecting cap is connected to the traction tube at the connecting hole.

[0012] The present invention is further configured such that the connecting cap is provided with a threaded connecting pipe communicating with the communicating hole, and one end of the traction pipe is provided with a threaded connecting sleeve that is threadedly connected to the threaded connecting pipe.

[0013] The present invention is further provided that the water pump is provided with a handle.

[0014] Compared with the prior art, the present invention has the following advantages: When conducting groundwater sampling, the present invention uses a water pump to quickly and continuously extract the well water until the water quality parameters are stable, and then the sampling tube is pulled out to complete the sampling. Compared with the existing Beile tube, which requires multiple up-and-down water extractions when conducting well washing, the operation is simpler and saves more time and effort. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 Used to demonstrate the connection between the sampling tube, the inlet pipe, and the connecting cap;

[0017] Figure 3 It is a partial sectional view used to show the internal structure of the water inlet pipe;

[0018] Figure 4 This is a partial cross-sectional view of the water inlet pipe.

[0019] Among them, 1. Sampling tube; 2. Inlet pipe; 21. Connecting pipe; 22. Support plate; 23. Inlet hole; 24. Baffle plate; 25. Through hole; 26. Limiting sleeve; 27. Hole hole; 3. Plug bead; 4. Support spring; 7. Water pump; 71. Handle; 72. Inlet pipe; 73. Outlet pipe; 8. Connecting cap; 81. Threaded connecting pipe; 9. Traction pipe; 91. Threaded connecting sleeve. Detailed Implementation

[0020] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the water sample collection Beller tube proposed in this utility model. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, used only to facilitate and clarify the illustration of the embodiments of this utility model. The same or similar reference numerals in the drawings represent the same or similar parts.

[0021] Example, refer to Figure 1-4A water sample collection tube includes a sampling tube 1, one end of which is connected to a water inlet pipe 2. The water inlet pipe 2 is provided with a connecting pipe 21 that extends into the sampling tube 1 and is threaded to it. A support plate 22 is provided inside the water inlet pipe 2, and a water inlet hole 23 is opened through the middle of the support plate 22. A baffle plate 24 is provided inside the water inlet pipe 2 on the side of the support plate 22 closer to the sampling tube 1. Multiple through holes 25 are opened through the baffle plate 24. A plugging bead 3 that can block the water inlet hole 23 is movably arranged between the support plate 22 and the baffle plate 24. A limiting sleeve 26 that fits the plugging bead 3 is provided on the baffle plate 24 toward the water inlet hole 23. Multiple hollow holes 27 are opened on the side wall of the limiting sleeve 26. A support spring 4 is provided inside the limiting sleeve 26 between the plugging bead 3 and the baffle plate 24. Under the action of gravity, the support spring 4 can also drive the plugging bead 3 to block the water inlet hole 23.

[0022] It also includes a water pump 7, which can rotate forward to pump water and rotate backward to inflate air. The water pump 7 is equipped with a handle 71, an inlet pipe 72 and an outlet pipe 73. The end of the sampling tube 1 away from the water inlet pipe 2 is threadedly connected to a connecting cap 8, and a connecting hole (not shown) is opened through the connecting cap 8. A threaded connecting pipe 81 communicating with the connecting hole is provided outward from the connecting cap 8. The end of the sampling tube 1 away from the water inlet pipe 2 is connected to the inlet pipe 72 and is connected to a traction pipe 9. One end of the traction pipe 9 is equipped with a threaded connecting sleeve 91 that is threadedly connected to the threaded connecting pipe 81, so as to facilitate the disassembly and carrying of the sampling tube 1 from the water pump 7.

[0023] Usage: When sampling groundwater, first connect the traction pipe 9 to the sampling pipe 1, and connect the water pump 7 to the portable power supply. Use the traction pipe 9 to lower the sampling pipe 1 into the well. After reaching the specified depth, control the water pump 7 to rotate forward to generate negative pressure in the sampling pipe 1. Under the action of negative pressure, the plug bead 3 will not block the inlet hole 23. The water will flow into the sampling pipe 1 through the inlet hole 23, then into the water pump 7 through the traction pipe 9, and finally out through the outlet pipe 73. Test the extracted water for key water quality parameters (such as pH value, conductivity, temperature, dissolved oxygen, etc.). When these parameters tend to stabilize, it indicates that the water in the well has been fully exchanged. At this time, the water pump 7 can be stopped. Pull the sampling pipe 1 upward through the traction pipe 9. After the water pump 7 stops working, the negative pressure in the sampling pipe 1 will be removed. The support spring 4 will push the plug bead 3 to block the inlet hole 21 to prevent water from flowing out when lifting. Finally, remove the inlet pipe 2, and the water in the sampling pipe 1 can be poured out.

[0024] It should also be noted that all terms such as "set up" and similar descriptive words in this application (especially the specification) indicate that two structures have or exist a connection relationship. However, the specific means by which the two are connected are not limited in detail, and are usually conventional connection methods. That is, the means should be understood as prior art and do not need to be elaborated. For example, "m is set up with n" only indicates that structure m has structure n, and whether the two are connected by welding, riveting, adhesive, or integral molding is within the scope of protection of this application. Similarly, "x is rotatably set up with y" only indicates that y and x can rotate relative to each other, and whether the two are connected by a bearing, or whether y directly passes through x and is rotatably connected to x, or other feasible methods, are all within the scope of protection of this application.

[0025] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A water sample collection Beller tube, comprising a sampling tube (1), characterized in that, One end of the sampling tube (1) is connected to a water inlet pipe (2). A support plate (22) is provided inside the water inlet pipe (2). A water inlet hole (23) is opened through the middle of the support plate (22). A baffle plate (24) is provided inside the water inlet pipe (2) on the side of the support plate (22) closer to the sampling tube (1). Multiple through holes (25) are opened through the baffle plate (24). A plugging bead (3) that can block the water inlet hole (23) is movably arranged between the support plate (22) and the baffle plate (24). A limiting sleeve (26) that fits the plugging bead (3) is provided on the baffle plate (24) towards the water inlet hole (23). Multiple hollow holes (27) are opened on the side wall of the limiting sleeve (26). A supporting spring (4) is provided inside the limiting sleeve (26) between the plugging bead (3) and the baffle plate (24). It also includes a water pump (7), which is provided with an inlet pipe (72) and an outlet pipe (73). The end of the sampling pipe (1) away from the water inlet pipe (2) is connected to the inlet pipe (72) and has a traction pipe (9) communicating with it.

2. The water sample collection Beller tube according to claim 1, characterized in that, The water inlet pipe (2) is provided with a connecting pipe (21) that extends into and is connected to the sampling pipe (1).

3. A water sample collection Beller tube according to claim 2, characterized in that, The connecting pipe (21) is threadedly connected to the sampling pipe (1).

4. A water sample collection Beller tube according to claim 1, characterized in that, The sampling tube (1) is threaded with a connecting cap (8) at one end away from the water inlet pipe (2). A connecting hole (25) is opened through the connecting cap (8), and the connecting cap (8) is connected to the traction tube (9) at the connecting hole (25).

5. A water sample collection Beller tube according to claim 4, characterized in that, The connecting cap (8) is provided with a threaded connecting pipe (81) communicating with the connecting hole (25) outward, and one end of the traction pipe (9) is provided with a threaded connecting sleeve (91) that is threadedly connected to the threaded connecting pipe (81).

6. A water sample collection Beller tube according to claim 1, characterized in that, The water pump (7) is equipped with a handle (71).

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