Sampling device for water quality detection

Abstract

The sampling device comprises a sampling cylinder, a sampling assembly, a load bearing lead block, a handle, a sealing cover, a wireless charging module and a storage battery, the sampling assembly is fixedly installed in the sampling cylinder, the load bearing lead block is fixedly installed at the inner bottom of the sampling cylinder, the handle is fixedly installed at the top of the sampling cylinder, and the wireless charging module is fixedly installed on the handle. The sealing cover is mounted at the top of the sampling barrel. The water suction pump is started, water is stored in the floating section, the pressure sensor detects the pressure in water, the pressure in the water is in direct proportion to the depth of the sampling barrel entering the water, the pressure sensor senses the depth of the sampling barrel in the water, the water suction pump stops working when the sampling barrel reaches the position where the depth needs to be measured, and the sampling barrel suspends in the reclaimed water. The water suction pump and the sampling pump are started at the same time, water in the floating section is discharged, water is sucked in the sampling section, the sampled water is kept at the same depth all the time, and measurement is more accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality sampling technical field especially relates to a sampling device for water quality detection. BACKGROUND

[0002] Water quality detection is an important means to ensure water resources safety and ecological environment health. With the acceleration of industrialization process and the increasingly serious environmental pollution problem, the demand for water quality monitoring is also increasing. In order to accurately evaluate water quality, water quality detection sampling device becomes an indispensable tool. However, the existing water quality sampling device has some obvious shortcomings in practical application, especially for the depth control of water quality sampling is not accurate enough, which directly affects the accuracy of water quality detection results.

[0003] Most of the existing water quality sampling devices use manual operation mode for sampling, and the operator needs to judge the sampling depth according to experience. This method not only depends on the skill level of the operator, but also is difficult to achieve accurate depth control under complex hydrological conditions. Especially in the case of deep water, manual operation is difficult to ensure that each sampling is carried out at the same depth, resulting in poor representativeness of the collected samples. In addition, manual operation may also produce errors due to human factors, such as inconsistent speed of the operator when paying off or taking up the line, or misjudgment of the sampling depth due to visual deviation, etc., which will affect the consistency and reliability of the sampling results.

[0004] Even some sampling devices equipped with automatic depth control function also have the problem of low precision. For example, some devices use electronic sensors to determine the sampling depth, but these sensors are often affected by suspended solids in water, resulting in inaccurate readings. In addition, these devices often do not consider the influence of water flow changes on sampling depth in design, for example, changes in water flow velocity may cause the sampler to deviate from the predetermined depth position, thereby affecting the accuracy of sampling. In addition, these devices may encounter various unexpected situations during use, such as breakage of ropes or cables, which will also affect the continuity and accuracy of sampling.

[0005] The existing water quality sampling devices often do not fully consider the problem of water sample protection during sampling. After water sample collection, if there is no appropriate protection measure, the microorganisms and chemical components in the water sample may change, resulting in distorted subsequent analysis results. For example, factors such as light and temperature change may affect the water sample, making the sample originally collected at a certain depth lose its original representativeness.

[0006] The existing water quality detection sampling device has many shortcomings in the control of sampling depth, which not only affects the accuracy of water quality detection results, but also increases the complexity and cost of water quality monitoring work.

[0007] Therefore, how to provide a water quality detection sampling device is a problem that those skilled in the art need to solve. Utility model content

[0008] One purpose of the present application is to provide a water quality detection sampling device. The water pump is started to store water in the floating interval. The pressure sensor detects the pressure in the water. The pressure in the water is proportional to the depth of the sampling cylinder in the water. The depth of the sampling cylinder in the water is sensed by the pressure sensor. When the desired measurement depth is reached, the water pump stops working. The sampling cylinder is suspended in the water. The water pump and the sampling pump are started at the same time. The water in the floating interval is discharged. The sampling interval sucks in water. The sampled water is always kept at the same depth. The measurement is more accurate.

[0009] According to the water quality detection sampling device, the sampling assembly is fixedly installed in the sampling cylinder. The heavy lead block is fixedly installed at the inner bottom of the sampling cylinder. The handle is fixedly installed at the top of the sampling cylinder. The sealing cover is installed at the top of the sampling cylinder. The wireless charging module is fixedly installed at the inner bottom of the sampling cylinder. The storage battery is fixedly installed at the inner bottom of the sampling cylinder.

[0010] Further, the inside of the sampling cylinder is fixedly provided with a partition plate. The partition plate is provided with four. The inside of the sampling cylinder is divided into a sampling interval, a floating interval, a functional interval, a heavy load interval and a charging interval from top to bottom in turn.

[0011] Further, the sampling assembly comprises a water suction pump, a first water suction pipe, a first water outlet pipe and a first electric water valve. The bottom of the water suction pump is fixedly installed on the inner bottom of the functional interval. The top of the first water suction pipe is fixedly installed on one side of the water suction pump. The bottom of the first water suction pipe extends to the bottom of the sampling cylinder. The bottom of the first water outlet pipe is fixedly installed on the other side of the water suction pump. The top of the first water outlet pipe extends into the floating interval. The first electric water valve is fixedly installed on the first water suction pipe.

[0012] Further, the sampling assembly further comprises a water pump, a second water suction pipe, a second water outlet pipe and a second electric water valve. The bottom of the water pump is fixedly installed on the inner bottom of the functional interval. The bottom of the second water suction pipe is fixedly installed on one side of the water suction pump. The top of the second water suction pipe extends into the floating interval. The top of the second water outlet pipe is fixedly installed on the other side of the water suction pump. The bottom of the second water outlet pipe extends to the bottom of the sampling cylinder. The second electric water valve is fixedly installed on the second water outlet pipe.

[0013] Further, the sampling assembly further comprises a sampling pump, a third water suction pipe, a third water outlet pipe and a third electric water valve, wherein the bottom of the sampling pump is fixedly installed on the inner bottom of the functional interval, the top of the third water suction pipe is fixedly installed on one side of the sampling pump, the bottom of the third water suction pipe extends to the bottom of the sampling cylinder, the bottom of the third water outlet pipe is fixedly installed on the other side of the sampling pump, and the top of the third water outlet pipe extends into the sampling interval.

[0014] Further, the sampling assembly further comprises a wireless communication module and a controller, wherein the bottom of the wireless communication module is fixedly installed in the functional interval, and the bottom of the controller is fixedly installed in the functional interval.

[0015] Further, the sampling assembly further comprises a support and a pressure sensor, wherein the bottom of the support is fixedly installed in the functional interval, the pressure sensor is fixedly installed on the support, and the sensing end of the pressure sensor extends out of the outer wall of the sampling cylinder.

[0016] Further, the weight lead block is located in the weight interval, the wireless charging module is located in the charging interval, and the storage battery is located in the functional interval.

[0017] The sampling device for water quality detection has the following beneficial effects:

[0018] The sampling device for water quality detection has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings are used to provide a further understanding of the sampling device for water quality detection, and constitute a part of the specification, and are used together with the embodiments of the sampling device for water quality detection to explain the sampling device for water quality detection, and do not constitute a limitation on the sampling device for water quality detection. In the drawings:

[0020] Fig. 1 The drawing is a structural schematic view of the whole sampling device for water quality detection;

[0021] Fig. 2 The drawing is a sectional view of the sampling cylinder of the sampling device for water quality detection;

[0022] Fig. 3 The drawing is a structural schematic view of the water suction pump of the sampling device for water quality detection;

[0023] Fig. 4 The utility model provides a kind of water quality detection sampling device's pumping unit structural diagram.

[0024] In the drawing: 1, sampling cylinder;1.1, partition plate;1.2, sampling interval;1.3, floating interval;1.4, functional interval;1.5, negative weight interval;1.6, charging interval;2, sampling assembly;2.1, water suction pump;2.2, first water suction pipe;2.3, first water outlet pipe;2.4, first electric water valve;2.5, pumping unit;2.6, second water suction pipe;2.7, second water outlet pipe;2.8, second electric water valve;2.9, sampling pump;2.10, third water suction pipe;2.11, third water outlet pipe;2.12, third electric water valve;2.13, wireless communication thermal module;2.14, controller;2.15, support;2.16, pressure sensor;3, negative weight lead block;4, handle;5, sealing cover;6, wireless charging module;7, battery. DETAILED DESCRIPTION

[0025] The utility model will be further explained in detail in connection with the drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the utility model in a schematic manner, so it only shows the structure related to the utility model.

[0026] Please refer to Figs. 1 to 4 The utility model provides a kind of water quality detection sampling device, including sampling cylinder 1, sampling assembly 2, negative weight lead block 3, handle 4, sealing cover 5, wireless charging module 6 and battery 7, wherein, sampling assembly 2 is fixedly installed in sampling cylinder 1, sampling cylinder 1 is plastic material, sampling assembly 2 is used for water resource to sample, negative weight lead block 3 is fixedly installed in the inner bottom of sampling cylinder 1, and negative weight lead block 3 makes sampling cylinder 1 can stably vertically float on water surface, handle 4 is fixedly installed at the top of sampling cylinder 1, sealing cover 5 is installed at the top of sampling cylinder 1, wireless charging module 6 is fixedly installed in the inner bottom of sampling cylinder 1, wireless charging module 6 is convenient for charging battery 7, battery 7 is fixedly installed in the inner bottom of sampling cylinder 1, and battery 7 is power supply, the inside of sampling cylinder 1 is fixedly provided with partition plate 1.1, and four partition plates 1.1 are set, and four partition plates 1.1 divide sampling cylinder 1 inside from top to bottom in turn into sampling interval 1.2, floating interval 1.3, functional interval 1.4, negative weight interval 1.5 and charging interval 1.6, negative weight lead block 3 is located in negative weight interval 1.5, wireless charging module 6 is located in charging interval 1.6, and battery 7 is located in functional interval 1.4.

[0027] Specifically, the sampling assembly 2 comprises a water suction pump 2.1, a first water suction pipe 2.2, a first water outlet pipe 2.3 and a first electric water valve 2.4, wherein the bottom of the water suction pump 2.1 is fixedly installed on the inner bottom of the functional section 1.4, the top of the first water suction pipe 2.2 is fixedly installed on one side of the water suction pump 2.1, the bottom of the first water suction pipe 2.2 extends to the bottom of the sampling cylinder 1, the bottom of the first water outlet pipe 2.3 is fixedly installed on the other side of the water suction pump 2.1, and the top of the first water outlet pipe 2.3 extends into the floating section 1.3, and the first electric water valve 2.4 is fixedly installed on the first water suction pipe 2.2.

[0028] The sampling assembly 2 further comprises a water suction pump 2.1, a first water suction pipe 2.2, a first water outlet pipe 2.3 and a first electric water valve 2.4, wherein the bottom of the water suction pump 2.1 is fixedly installed on the inner bottom of the functional section 1.4, the bottom of the second water suction pipe 2.6 is fixedly installed on one side of the water suction pump 2.1, the top of the second water suction pipe 2.6 extends into the floating section 1.3, the top of the second water outlet pipe 2.7 is fixedly installed on the other side of the water suction pump 2.1, the bottom of the second water outlet pipe 2.7 extends to the bottom of the sampling cylinder 1, and the second electric water valve 2.8 is fixedly installed on the second water outlet pipe 2.7.

[0029] The sampling assembly 2 further comprises a sampling pump 2.9, a third water suction pipe 2.10, a third water outlet pipe 2.11 and a third electric water valve 2.12, wherein the bottom of the sampling pump 2.9 is fixedly installed on the inner bottom of the functional section 1.4, the top of the third water suction pipe 2.10 is fixedly installed on one side of the sampling pump 2.9, the bottom of the third water suction pipe 2.10 extends to the bottom of the sampling cylinder 1, the bottom of the third water outlet pipe 2.11 is fixedly installed on the other side of the sampling pump 2.9, and the top of the third water outlet pipe 2.11 extends into the sampling section 1.2.

[0030] The sampling assembly 2 further comprises a wireless communication module 2.13 and a controller 2.14, wherein the bottom of the wireless communication module 2.13 is fixedly installed in the functional section 1.4, and the bottom of the controller 2.14 is fixedly installed in the functional section 1.4, the sampling assembly 2 further comprises a bracket 2.15 and a pressure sensor 2.16, the bottom of the bracket 2.15 is fixedly installed in the functional section 1.4, the pressure sensor 2.16 is fixedly installed on the bracket 2.15, and the sensing end of the pressure sensor 2.16 extends out of the outer wall of the sampling cylinder 1.

[0031] Further, the middle of the rope is tied to the handle 4, and then the sampling cylinder 1 is lowered into the water, and the sampling cylinder 1 floats on the water, and the wireless communication module 2.13 is connected with the signal of the external remote controller or the mobile phone software, the wireless communication module 2.13 transmits the signal to the controller 2.14, the controller 2.14 starts the water suction pump 2.1, and the water suction pump 2.1 and the first electric water valve 2.4 are opened, and the water is sucked into the floating interval 1.3 through the first water suction pipe 2.2 and the first water outlet pipe 2.3, the weight of the sampling cylinder 1 continues to increase, the sampling cylinder 1 is immersed in the water, the pressure sensor 2.16 detects the pressure in the water, and the pressure in the water is proportional to the depth of the sampling cylinder 1 in the water, the depth of the sampling cylinder 1 in the water is sensed by using the pressure sensor 2.16, and when the sampling cylinder 1 reaches the position of the required measuring depth, the water suction pump 2.1 stops working, and the sampling cylinder 1 is suspended in the water.

[0032] When the water at the depth position is sampled, the water suction pump 2.5 and the sampling pump 2.9 are started, the water suction pump 2.5 sucks the water in the floating interval 1.3 out of the sampling cylinder 1 through the opening of the second electric water valve 2.8, the second water suction pipe 2.6 and the second water outlet pipe 2.7, and at the same time, the sampling pump 2.9 sucks the water into the sampling interval 1.2 through the opening of the third electric water valve 2.12, the third water suction pipe 2.10 and the third water outlet pipe 2.11, and the water in the floating interval 1.3 is discharged, the sampling interval 1.2 sucks in the water, the sampling is completed, the staff pulls the rope, the sampling cylinder 1 is pulled out of the water, the sealing cover 5 is removed, the water in the sampling interval 1.2 is poured out, and the sampling is completed.

[0033] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A sampling device for water quality testing, characterized by, The utility model provides a sampling device, including sampling cylinder (1), sampling subassembly (2), heavy lead block (3), handle (4), sealing cover (5), wireless charging module (6) and battery (7), wherein, sampling subassembly (2) fixed mounting in sampling cylinder (1), heavy lead block (3) fixed mounting in the inner bottom of sampling cylinder (1), handle (4) fixed mounting at the top of sampling cylinder (1), sealing cover (5) is installed at the top of sampling cylinder (1), wireless charging module (6) fixed mounting in the inner bottom of sampling cylinder (1), battery (7) fixed mounting in the inner bottom of sampling cylinder (1).

2. The sampling device for water quality detection according to claim 1, characterized in that, The inside of the sampling cylinder (1) is fixedly provided with a partition plate (1.1), the partition plate (1.1) is provided with four, and the inside of the sampling cylinder (1) is divided into sampling interval (1.2), floating interval (1.3), functional interval (1.4), heavy load interval (1.5) and charging interval (1.6) from top to bottom in turn.

3. The sampling device for water quality detection according to claim 1, characterized in that, The sampling assembly (2) includes a water suction pump (2.1), a first water suction pipe (2.2), a first water outlet pipe (2.3), and a first electric water valve (2.4), wherein the bottom of the water suction pump (2.1) is fixedly installed on the inner bottom of the functional interval (1.4), the top of the first water suction pipe (2.2) is fixedly installed on one side of the water suction pump (2.1), the bottom of the first water suction pipe (2.2) extends to the bottom of the sampling cylinder (1), the bottom of the first water outlet pipe (2.3) is fixedly installed on the other side of the water suction pump (2.1), the top of the first water outlet pipe (2.3) extends into the floating interval (1.3), and the first electric water valve (2.4) is fixedly installed on the first water suction pipe (2.2).

4. The sampling device for water quality detection according to claim 3, characterized in that, The sampling assembly (2) further includes a water suction pump (2.5), a second water suction pipe (2.6), a second water outlet pipe (2.7), and a second electric water valve (2.8), wherein the bottom of the water suction pump (2.5) is fixedly installed on the inner bottom of the functional interval (1.4), the bottom of the second water suction pipe (2.6) is fixedly installed on one side of the water suction pump (2.1), the top of the second water suction pipe (2.6) extends into the floating interval (1.3), the top of the second water outlet pipe (2.7) is fixedly installed on the other side of the water suction pump (2.1), the bottom of the second water outlet pipe (2.7) extends to the bottom of the sampling cylinder (1), and the second electric water valve (2.8) is fixedly installed on the second water outlet pipe (2.7).

5. The sampling device for water quality detection according to claim 4, characterized in that, The sampling assembly (2) further comprises a sampling pump (2.9), a third water suction pipe (2.10), a third water outlet pipe (2.11) and a third electric water valve (2.12), wherein the bottom of the sampling pump (2.9) is fixedly installed on the inner bottom of the functional interval (1.4), the top of the third water suction pipe (2.10) is fixedly installed on one side of the sampling pump (2.9), the bottom of the third water suction pipe (2.10) extends to the bottom of the sampling cylinder (1), the bottom of the third water outlet pipe (2.11) is fixedly installed on the other side of the sampling pump (2.9), and the top of the third water outlet pipe (2.11) extends into the sampling interval (1.2).

6. The sampling device for water quality detection according to claim 5, characterized in that, The sampling assembly (2) further comprises a wireless communication module (2.13) and a controller (2.14), wherein the bottom of the wireless communication module (2.13) is fixedly installed in the functional interval (1.4), and the bottom of the controller (2.14) is fixedly installed in the functional interval (1.4).

7. The sampling device for water quality detection according to claim 6, characterized in that, The sampling assembly (2) further comprises a bracket (2.15) and a pressure sensor (2.16), wherein the bottom of the bracket (2.15) is fixedly installed in the functional interval (1.4), the pressure sensor (2.16) is fixedly installed on the bracket (2.15), and the sensing end of the pressure sensor (2.16) extends out of the outer wall of the sampling cylinder (1).

8. The sampling device for water quality detection according to claim 1, characterized in that, The weight lead block (3) is located in the weight interval (1.5), the wireless charging module (6) is located in the charging interval (1.6), and the storage battery (7) is located in the functional interval (1.4).

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