Multifunctional water level measurement and water sample collection device

Abstract

The utility model provides a multifunctional water level measuring and water sample collecting device. The device comprises a water collecting cylinder, a filter cylinder detachably connected to a lower port of the water collecting cylinder and a measuring probe fixed in the water collecting cylinder, a water outlet with a sealing cover is formed in the upper end face of the water collecting cylinder, a one-way water inlet structure is arranged at the lower end of the water collecting cylinder, and a measuring rope is fixedly connected to the top face of the water collecting cylinder; a signal line of the measuring probe penetrates out of the sealed top surface of the water collecting cylinder; an upper sieve pore plate is arranged at the upper end opening, close to the water collecting barrel, of the filter barrel, a lower sieve pore plate is arranged at the lower end opening, away from the water collecting barrel, of the filter barrel, and a filter plate is embedded between the upper sieve pore plate and the lower sieve pore plate. The device disclosed by the utility model can be used for simultaneously measuring the water level of a water body and taking water, eliminating the interference of an external water body environment while measuring and detecting the water level, simultaneously ensuring the interference of suspended solids in the water body and the like when a detected water sample is collected, facilitating manual operation and reducing errors of monitoring data.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment, and more particularly to a multifunctional water level measurement and water sample collection device, which can be used in, but is not limited to, engineering surveying and environmental water body testing. Technical Background

[0002] Groundwater level measurement helps in the rational development, utilization, and protection of groundwater resources, ensuring their sustainable supply. Monitoring data can provide decision-making support for water resource management departments, such as setting groundwater extraction limits, guiding farmland irrigation, and protecting drinking water sources, thus benefiting water resource management. Water sampling and testing can promptly identify and trace the sources of pollutants, preventing groundwater pollution and ensuring drinking water safety. In engineering surveys, water sampling and testing, through water quality analysis, can assess the corrosiveness of groundwater to building structural materials, ensuring the safety and durability of projects.

[0003] Currently, in fields such as engineering surveying, water level measurement is usually carried out using rudimentary ropes and measuring tapes, and water sampling is also done using simply made bottles, which cannot meet the requirements of regulations. Furthermore, due to the complexity of different water environments, these simple sampling devices cause significant disturbance to the water samples, leading to errors in subsequent water quality testing data. Moreover, existing water level measurement and water sampling are generally performed separately. Utility model patent CN208999152U provides a device for measuring water level and collecting water samples in wells. This device includes an external circuit, measuring lines, and a probe. The probe, from top to bottom, includes a mesh tube, a water collection section, and a counterweight. Water can flow into the mesh tube, which has a detachable rubber sheet in the middle. When the rubber sheet is installed, water flows into the water collection section upon entry and does not flow out upon exit. Without the rubber sheet, the device only performs water level measurement. Although the patent can achieve two functions, water level measurement and water sample collection, the two functions cannot be performed simultaneously and must be performed separately; moreover, the device is easily affected by solid suspended matter and other interferences when collecting water samples. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a multifunctional water level measurement and water sample collection device. This device can simultaneously measure water level and collect water samples, and can ensure that interference from solid suspended matter and other substances in the water body is eliminated during water sample collection. It is convenient for manual operation and reduces the error of monitoring data. At the same time, the probe and measuring rope can accurately reflect the water level data, which can facilitate the operation of personnel to measure water level and collect water samples.

[0005] To achieve the above-mentioned technical objectives, this utility model provides a multifunctional water level measurement and water sample collection device. The device includes a water collection cylinder, a filter cylinder detachably connected to the lower port of the water collection cylinder, and a measuring probe fixed inside the water collection cylinder. The upper port of the water collection cylinder is closed and has a water outlet with a sealing cap. A one-way water inlet structure is provided at the lower end of the water collection cylinder. A measuring rope is fixedly connected to the top surface of the water collection cylinder. The measuring probe is fixed to the side wall of the water collection cylinder or suspended inside the water collection cylinder, and its signal line passes through the sealed top surface of the water collection cylinder. The filter cylinder has an upper sieve plate near the upper port of the water collection cylinder and a lower sieve plate away from the lower port of the water collection cylinder. A filter plate is embedded between the upper sieve plate and the lower sieve plate.

[0006] The preferred technical solution of this utility model is as follows: The one-way water inlet structure includes a water inlet provided on the lower end face of the water collecting cylinder and a baffle located above the water inlet. A support frame is provided above the baffle and the support frame is fixed to the inner wall of the water collecting cylinder. The baffle is connected to the support frame through an elastic member. When water enters through the water inlet at the lower end of the water collecting cylinder, the baffle moves upward under the water pressure below to open the water inlet; when the water collecting cylinder is lifted, the baffle moves downward under the water pressure above to close the water inlet.

[0007] The preferred technical solution of this utility model is that the measuring probe is set in a region higher than the unidirectional water inlet structure.

[0008] The preferred technical solution of this utility model is as follows: the filter cylinder is threadedly connected to the water collection cylinder, and the filter cylinder is composed of two cylinder structures threadedly connected, with the connection part being higher than the lower screen plate.

[0009] The preferred technical solution of this utility model is as follows: the filter plate is made of polypropylene filter paper or PP ceramic filter plate, and an annular groove is provided in the area between the upper sieve plate and the lower sieve plate of the filter cylinder. The filter plate is a circular filter plate with its edge embedded in the groove.

[0010] The preferred technical solution of this utility model is as follows: the lower sieve plate is a 5-mesh sieve with a sieve aperture of 4mm; the upper sieve plate is a 10-mesh sieve with a sieve aperture of 2mm; and the filter plate is a 100-mesh filter plate with a filter aperture of 0.15mm.

[0011] The preferred technical solution of this utility model is as follows: the diameter of the water inlet is smaller than the inner diameter of the water collecting cylinder, and the water inlet protrudes upward; the diameter of the baffle is equal to or greater than the diameter of the water inlet; the support frame is a cross-shaped bracket fixed to the inner wall of the water collecting cylinder; one end of the elastic member is connected to the center position of the cross-shaped bracket, and the other end is connected to the center position of the baffle.

[0012] This invention integrates water level measurement and water sample collection into a single device, simplifying the work of engineers and overcoming and optimizing existing methods for detecting borehole water levels and groundwater levels in related projects. The device features a filter structure at the inlet to filter out suspended solids in the water, minimizing external environmental interference during water level measurement and ensuring that water samples are collected without interference from suspended solids. This facilitates manual operation and reduces errors in monitoring data. Furthermore, the device uses a probe and measuring rope to accurately reflect water level data, making it convenient for operators to measure water levels and collect water samples, further improving the accuracy and stability of the monitoring data. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the filter cartridge of this utility model in its disassembled state;

[0015] Figure 3 This is a schematic diagram of the unidirectional water inlet structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the water inlet monitoring status of this utility model;

[0017] Figure 5 This is a schematic diagram of the water collection state of this utility model.

[0018] Wherein: 1—Water collecting cylinder; 2—Filter cylinder; 200—Upper sieve plate; 201—Lower sieve plate; 202—Filter plate; 203—Groove; 3—Measuring probe; 4—Sealing cover; 5—Measuring rope; 6—Signal line; 7—One-way water inlet structure; 700—Water inlet; 701—Baffle; 702—Support frame; 703—Elastic component. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. Figures 1 to 5 All accompanying drawings are simplified versions of embodiments and are intended solely for the purpose of clearly and concisely illustrating the embodiments of this utility model. The technical solutions shown in the drawings below are specific solutions of embodiments of this utility model and are not intended to limit the scope of the claimed utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] The embodiment provides a multifunctional water level measurement and water sample collection device, such as Figures 1 to 5 As shown, the device includes a water collection cylinder 1, a filter cylinder 2 detachably connected to the lower port of the water collection cylinder 1, and a measuring probe 3 fixed inside the water collection cylinder 1. The upper port of the water collection cylinder 1 is closed and has an outlet with a sealing cap 4. A one-way water inlet structure 7 is provided at the lower end of the water collection cylinder 1. The unidirectional water inlet structure 7 includes a water inlet 700 disposed on the lower end face of the water collecting cylinder 1 and a baffle 701 located above the water inlet 700. The diameter of the water inlet 700 is smaller than the inner diameter of the water collecting cylinder 1, and the water inlet 700 protrudes upward. A support frame 702 is provided above the baffle 701. The diameter of the baffle 701 is equal to or greater than the diameter of the water inlet 700. The support frame 702 is a cross-shaped bracket fixed to the inner wall of the water collecting cylinder 1. The baffle 701 is connected to the support frame 702 through an elastic member 703. One end of the elastic member 703 is connected to the center position of the cross-shaped bracket, and the other end is connected to the center position of the baffle 701. The elastic member 703 can be a spring. When water enters through the inlet 700 at the lower end of the water collecting cylinder 1, the baffle 701 moves upward under the water pressure below to open the inlet 700; when the water collecting cylinder 1 is lifted, the baffle 701 moves downward under the water pressure above to close the inlet 700.

[0022] The embodiment provides a multifunctional water level measurement and water sample collection device, such as Figures 1 to 5As shown, a measuring rope 5 is fixedly connected to the top surface of the water collecting cylinder 1. The measuring probe 3 is fixed to the side wall of the water collecting cylinder 1 or suspended inside the water collecting cylinder 1. Its signal line 6 passes through the sealed top surface of the water collecting cylinder 1, and the exit point is sealed. The measuring probe 3 is located in an area higher than the one-way water inlet structure 7. The filter cylinder 2 has an upper screen plate 200 at its upper port adjacent to the water collecting cylinder 1 and a lower screen plate 201 at its lower port away from the water collecting cylinder 1. A filter plate 202 is embedded between the upper screen plate 200 and the lower screen plate 201. The filter cylinder 2 is threadedly connected to the water collecting cylinder 1. The filter cylinder 2 is composed of two cylindrical structures connected by threads, and the connection part is higher than the lower screen plate 201, which facilitates the replacement of the filter plate 202. When replacing, only the lower part of the thread of the filter cylinder 2 needs to be opened to replace the filter plate 202. The filter plate 202 is made of polypropylene filter paper or PP ceramic filter plate. An annular groove 203 is provided in the area between the upper perforated plate 200 and the lower perforated plate 201 in the filter cylinder 2. The filter plate 202 is a circular filter plate, with its edges embedded in the groove 203. The lower perforated plate 201 is a 5-mesh screen with a sieve aperture of 4mm; the upper perforated plate 200 is a 10-mesh screen with a sieve aperture of 2mm; and the filter plate 202 is a 100-mesh filter plate with a filter aperture of 0.15mm.

[0023] When the entire measuring device of this utility model is lowered into the water body, the water flows from bottom to top, passing through the lower screen plate 201 at the bottom of the filter cylinder 2 and entering the filter plate 202. It then passes through the filter plate 202 and the upper screen plate 200 and enters the one-way water inlet structure 7. Under the control of the one-way water inlet structure 7, the water enters the cavity of the water collecting cylinder 1. Since the baffle 701 of the one-way water inlet structure 7 is connected to the support frame 702 via an elastic member 703, when water enters from below, as... Figure 4 As shown, the water pressure will exert an upward force on the baffle 701, causing the elastic member 703 to contract, and the baffle 701 to move upward, opening the water inlet 700 for normal water intake. During the water collection process, when the measuring probe 3 touches the surface of the water gushing from the one-way water inlet structure 7, the probe short-circuit and the indicator light illuminates. The height of the water level immersion line can be calculated based on the length of the lowered measuring rope 4 and the fixed length of the measuring rope 4 from the measuring probe 10 to the cylinder opening.

[0024] When measuring rope 4 is lifted, due to the influence of gravity, such as Figure 5 As shown, the water in the water collection cylinder 1 will exert a downward pressure on the baffle 701. The elastic member 703 extends, which will cause the baffle 701 to block the water inlet 700, so the water will not flow out. Water samples can be collected, and the collected water samples are filtered through the filter cylinder 2, so there will be no impurities or solids that will affect the subsequent tests.

[0025] The above description is merely one embodiment of this utility model, and while it is quite specific and detailed, it should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A multifunctional water level measurement and water sample collection device, characterized in that: The device includes a water collection cylinder (1), a filter cylinder (2) detachably connected to the lower port of the water collection cylinder (1), and a measuring probe (3) fixed inside the water collection cylinder (1). The upper port of the water collection cylinder (1) is closed and has an outlet with a sealing cap (4). A one-way water inlet structure (7) is provided at the lower end of the water collection cylinder (1). A measuring rope (5) is fixedly connected to the top surface of the water collection cylinder (1). The measuring probe (3) is fixed to the side wall of the water collection cylinder (1) or suspended inside the water collection cylinder (1), and its signal line (6) passes through the sealed top surface of the water collection cylinder (1). The filter cylinder (2) has an upper screen plate (200) near the upper port of the water collection cylinder (1) and a lower screen plate (201) away from the lower port of the water collection cylinder (1). A filter plate (202) is embedded between the upper screen plate (200) and the lower screen plate (201).

2. The multifunctional water level measurement and water sample collection device according to claim 1, characterized in that: The one-way water inlet structure (7) includes a water inlet (700) disposed on the lower end face of the water collection cylinder (1) and a baffle (701) located above the water inlet (700). A support frame (702) is provided above the baffle (701). The support frame (702) is fixed to the inner wall of the water collection cylinder (1). The baffle (701) is connected to the support frame (702) through an elastic member (703). When water enters the water inlet (700) at the lower end of the water collection cylinder (1), the baffle (701) moves upward under the water pressure below to open the water inlet (700). When the water collection cylinder (1) is lifted, the baffle (701) moves downward under the water pressure above to close the water inlet (700).

3. A multifunctional water level measurement and water sample collection device according to claim 1 or 2, characterized in that: The measuring probe (3) is positioned in an area above the unidirectional water inlet structure (7).

4. A multifunctional water level measurement and water sample collection device according to claim 1 or 2, characterized in that: The filter cylinder (2) is threadedly connected to the water collection cylinder (1). The filter cylinder (2) is made of two cylinder structures threadedly connected, and the connection part is higher than the lower screen plate (201).

5. A multifunctional water level measurement and water sample collection device according to claim 1 or 2, characterized in that: The filter plate (202) is made of polypropylene filter paper or PP ceramic filter plate. An annular groove (203) is provided in the area between the upper sieve plate (200) and the lower sieve plate (201) of the filter cylinder (2). The filter plate (202) is a circular filter plate with its edge embedded in the groove (203).

6. A multifunctional water level measurement and water sample collection device according to claim 1 or 2, characterized in that: The lower sieve plate (201) is a 5-mesh sieve with a sieve aperture of 4 mm; the upper sieve plate (200) is a 10-mesh sieve with a sieve aperture of 2 mm; and the filter plate (202) is a 100-mesh filter plate with a filter aperture of 0.15 mm.

7. The multifunctional water level measurement and water sample collection device according to claim 2, characterized in that: The diameter of the inlet (700) is smaller than the inner diameter of the water collection cylinder (1), and the inlet (700) protrudes upwards. The diameter of the baffle (701) is equal to or greater than the diameter of the inlet (700). The support frame (702) is a cross-shaped bracket fixed to the inner wall of the water collection cylinder (1). One end of the elastic member (703) is connected to the center of the cross-shaped bracket, and the other end is connected to the center of the baffle (701).

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