Water quality sampling device for environment detection

Abstract

The utility model relates to the technical field of water quality detection, in particular to a water quality sampling device for environment detection, which comprises a water quality sampling barrel and a barrel cover, a plurality of water inlets are arranged on the side wall of the water quality sampling barrel, and a counterweight shell is arranged at the lower end of the water quality sampling barrel. A sampling assembly for separating and sampling a sampling solution is arranged in the water quality sampling barrel; the sampling assembly comprises a separation filter screen arranged in the water quality sampling barrel and a water guide shell arranged on the separation filter screen. The sampling assembly is additionally arranged in the water quality sampling barrel, so that water samples collected in the water quality sampling barrel can be respectively collected, various water quality information is obtained, the uniformity of water sample detection is improved, frequent sampling at a certain water sample collection point is not needed, the collection content of detection personnel is greatly reduced, and the detection efficiency is improved. And the uniformity and the stability of detection data are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality detection, in particular to a water quality sampling device for environmental detection. Background Technique

[0002] Water quality environmental detection is a process involving monitoring and measuring the types, concentrations, and changing trends of pollutants in water bodies, aiming to evaluate the water quality status. Water quality is the abbreviation of water body quality, which marks the physical characteristics such as the chromaticity, turbidity, and odor of the water body, the chemical characteristics such as the contents of inorganic and organic substances, and the biological characteristics such as the contents of bacteria, microorganisms, plankton, and benthic organisms; when sampling water quality, a water quality sampling bucket is mostly used to collect water samples.

[0003] Currently, when collecting environmental samples of planktonic algae in water bodies, most samples are obtained through quantitative collection methods. Users usually place the water quality sampling bucket 50 cm below the water surface for collection. When the traditional water quality sampling bucket is sampling, the liquid will enter the bucket through the water inlet on one side of the water quality sampling bucket. Since planktonic algae have strong aggregation properties, this leads to uneven distribution of algae in the water sample entering the bucket, which easily causes the detected values to be too large or too small. Therefore, multiple samplings are required to reduce errors, and the water quality sampling bucket can only collect information on one water body quality each time during sampling, resulting in inconsistent water quality data. For this reason, a water quality sampling device for environmental detection is proposed. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a water quality sampling device for environmental detection, which solves the technical problems that the traditional water quality sampling bucket can only collect one kind of information and there are large deviations in the detection data.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A water quality sampling device for environmental detection, including a water quality sampling bucket and a bucket cover. A plurality of water inlets are opened on the side wall of the water quality sampling bucket, and a sampling component for separating and sampling the sampling liquid is arranged in the water quality sampling bucket;

[0006] The sampling component includes a partition filter screen arranged in the water quality sampling bucket and a water guide shell arranged on the partition filter screen. A communicating pipe is rotatably arranged in the water guide shell. An adjusting rod is arranged on the communicating pipe, and a plurality of water blocking components for controlling the opening and closing of the water inlets are arranged on the adjusting rod. A counterweight shell is arranged at the lower end of the water quality sampling bucket, and a driving component for driving the communicating pipe to rotate intermittently is arranged in the counterweight shell.

[0007] Preferably, the adjusting rod is arranged on the communicating pipe through a threaded connection. The water blocking component includes a connecting rod arranged on the adjusting rod. The other end of the connecting rod is provided with a water blocking piece, and the water blocking piece abuts against the water inlet on the side wall of the water quality sampling bucket.

[0008] Preferably, a water inlet hole is formed in the water guide shell, a communication hole for cooperating with the water inlet hole is arranged on the communication pipe, a water outlet pipe is arranged on the communication pipe and below the partition filter screen, two liquid guide pipes for guiding liquid are arranged on the water quality sampling bucket, a plug is arranged at the end of the liquid guide pipe, and the water outlet pipe and the liquid guide pipe are in the same plane.

[0009] Preferably, the driving assembly includes a driving shaft and a driven shaft rotatably arranged in the counterweight shell, a driving member and a driven member are respectively arranged on the driving shaft and the driven shaft, the driving member and the driven member are arranged in cooperation with each other, one end of the driven shaft penetrates through the counterweight shell and is fixedly arranged with one end of the communication pipe, and a driving motor is further arranged on the counterweight shell, and the output end of the driving motor is fixedly arranged with one end of the driving shaft.

[0010] Preferably, the number of the water inlets is four, and they are equally spaced in a circular shape in the plane.

[0011] Preferably, the bucket cover is arranged at the upper end of the adjusting rod through a locking bolt, and an internal thread for cooperating with the locking bolt is formed in the adjusting rod.

[0012] Preferably, a reinforcing rod for strengthening the strength of the adjusting rod is arranged in the water quality sampling bucket.

[0013] Preferably, the angular displacement of the communication pipe for a single rotation is 120°.

[0014] Preferably, two air holes for maintaining the pressure difference inside and outside the bucket are arranged on the bucket cover.

[0015] By means of the above technical solutions, the present utility model provides a water quality sampling device for environmental detection, which at least has the following beneficial effects:

[0016] 1. By adding a sampling assembly to the water quality sampling bucket, the present utility model can separately collect the water samples collected in the water quality sampling bucket, so as to obtain various water quality information in a single sampling, improve the unity of water sample detection, do not need to frequently sample a certain water sample collection point, greatly reduce the collection content of the detection personnel, and ensure the unity and stability of environmental detection data.

[0017] 2. Through the mutual cooperation of the driving assembly and the water blocking assembly, the present utility model can uniformly collect the water body at the sampling point after the water quality sampling bucket reaches the sampling point, avoid the numerical error caused by the liquid only entering the sampling bucket through the collection port on one side, do not need to increase the number of collections to ensure the reliability of the data, effectively improve the unity of a single collection of the water quality sampling bucket, and solve the disadvantages brought by the liquid only entering from one side of the traditional water quality sampling bucket. Description of the Drawings

[0018] The accompanying drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0019] Figure 1 is a schematic diagram of the overall structure of the water quality sampling bucket of the present utility model;

[0020] Figure 2 is a schematic diagram of the internal structure of the water quality sampling bucket of the present utility model;

[0021] Figure 3 is a schematic diagram of the structure of the sampling assembly of the present utility model;

[0022] Figure 4 is a schematic diagram of the structure of the connecting pipe and the connecting pipe of the present utility model;

[0023] Figure 5 is a schematic diagram of the internal structure of the water guiding shell of the present utility model;

[0024] Figure 6 is a schematic diagram of the internal structure of the counterweight shell of the present utility model;

[0025] Figure 7 is a schematic diagram of the structure of the driving assembly of the present utility model.

[0026] In the figure: 1. Water quality sampling bucket; 101. Bucket cover; 102. Water inlet; 103. Liquid guide pipe; 2. Counterweight shell; 3. Sampling assembly; 301. Partition filter screen; 302. Connecting pipe; 3021. Water outlet pipe; 303. Water guiding shell; 304. Adjusting rod; 305. Connecting rod; 306. Water blocking member; 307. Locking bolt; 4. Driving assembly; 401. Driving shaft; 402. Driven shaft; 403. Driving member; 404. Driven member; 405. Driving motor. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. 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] Embodiment 1

[0029] Please refer to Figures 1-7, A water quality sampling device for environmental detection, comprising a water quality sampling bucket 1 and a bucket cover 101. There are two air vents on the bucket cover 101 for maintaining the pressure difference inside and outside the bucket. A number of water inlets 102 are provided on the side wall of the water quality sampling bucket 1. The number of water inlets 102 is four, and they are equidistantly arranged in a circular shape in a plane. A counterweight shell 2 is provided at the lower end of the water quality sampling bucket 1. A sampling assembly 3 for separating and sampling the sampling liquid is provided inside the water quality sampling bucket 1;

[0030] The sampling assembly 3 includes a partition filter screen 301 arranged inside the water quality sampling bucket 1 and a water guide shell 303 provided on the partition filter screen 301. A communication pipe 302 is rotatably arranged inside the water guide shell 303. A driving assembly 4 for intermittently rotating the communication pipe 302 is provided inside the counterweight shell 2.

[0031] An adjusting rod 304 is also connected to the communication pipe 302 by means of a thread. A number of water blocking assemblies for controlling the opening and closing of the water inlets 102 are provided on the adjusting rod 304.

[0032] Water quality environmental detection is a process involving the monitoring and determination of the types, concentrations, and changing trends of pollutants in water bodies, aiming to evaluate the water quality status. The water quality marks the physical characteristics such as color, turbidity, and odor of the water body, the chemical characteristics such as the contents of inorganic and organic substances, and the biological characteristics such as the contents of bacteria, microorganisms, plankton, and benthic organisms; when traditionally collecting and detecting water bodies through a sampling bucket, generally two samplings need to be carried out at one point. That is, first, the types and numbers of phytoplankton in a unit water body are obtained through a quantitative collection method, and then the water body is sampled again to obtain the physical and chemical characteristics of the water body; the reason for this phenomenon is that when quantitatively collecting, a quantitative water sample needs to be extracted, and then an appropriate amount of Lugol's solution is added to the quantitative water sample so that the types and numbers of phytoplankton in the quantitative water sample can be calculated through the visual field method. Therefore, when traditionally wanting to determine the information of phytoplankton in the water body, the collected liquid cannot be analyzed for physical and chemical properties because Lugol's solution will damage the water quality, and the water quality is a unified collection of all information. Therefore, two samplings need to be carried out at one point in order to obtain various detection information, namely phytoplankton detection and physical and chemical property detection;

[0033] The utility model sets a sampling component 3 in a water quality sampling barrel 1, and filters the quantitative sample through the separation filter 301 in the sampling component 3, so that all phytoplankton in the quantitative sample is located at the upper part of the water quality sampling barrel 1, and the water sample without phytoplankton is located at the lower part of the water quality sampling barrel 1, and the sample to be tested containing all phytoplankton is discharged to the outside for collection through the connecting pipe 302, so as to perform quantitative detection of phytoplankton, and the sample to be tested without phytoplankton is discharged to the outside for collection through the liquid guide tube 103 provided by the water quality sampling barrel 1, so as to perform physical and chemical property detection of water body; this method can not only reduce the sampling frequency of the water quality sampling barrel 1, but also perform a three-dimensional analysis of the water quality of the sampling point, so as to ensure that more accurate water quality information is obtained;

[0034] At the same time, when a traditional sampling bucket is used to collect water, since there are two water inlets on the top of the traditional sampling bucket, when the sampling bucket arrives at the sampling point for sampling, the liquid will only enter through the water inlet on one side, and the water inlet on the other side generally serves as an exhaust port to maintain the internal and external pressure difference. Most of the floating algae in the water body are distributed in an aggregated shape. If the water sample enters the sampling bucket only through the water inlet on one side, the number of floating algae collected by the sampling bucket will be either too much or too little. In order to eliminate this situation, multiple collections are required to obtain the average value to ensure the reliability of the water quality information.

[0035] The utility model arranges a water retaining assembly on the adjusting rod 304, drives the connecting pipe 302 to rotate through the driving assembly 4, and then drives the adjusting rod 304 to rotate, so that the water retaining assembly blocks and opens the water inlet 102. When the water inlet 102 is opened, liquid will enter the water quality sampling barrel 1 from multiple water inlets 102, that is, liquid enters the interior of the water quality sampling barrel 1 from the surrounding area above the water quality sampling barrel 1. This liquid intake method can evenly sample the water body, and will not collect from only one place, which greatly improves the uniform distribution of floating algae in the collected liquid.

[0036] Embodiment 2

[0037] Please refer to Figures 2-4 This embodiment is basically the same as the first embodiment. This embodiment is made on the basis of the first embodiment and has the same beneficial effects as the first embodiment. The same parts can be referred to each other and will not be described in detail here.

[0038] As a preferred technical solution of this embodiment, a water inlet hole is provided on the water guide shell 303, and a connecting hole used in conjunction with the water inlet hole is provided on the connecting pipe 302. In the initial state, the angle between the water inlet hole and the connecting hole is 120 degrees, and at this time, the water retaining assembly does not block the water inlet 102;

[0039] An outlet pipe 3021 is provided on the connecting pipe 302 and below the separation filter screen 301. Two liquid guiding pipes 103 for guiding liquid are provided on the water quality sampling bucket 1. A plug is provided at the end of the liquid guiding pipe 103. The outlet pipe 3021 and the liquid guiding pipe 103 are in the same plane.

[0040] After the liquid enters the water quality sampling bucket 1 through the water inlet 102 and is collected, liquid separation operation can be carried out, that is, a test sample containing all planktonic algae is separated from above the separation filter screen 301 and a test sample without planktonic algae is separated from below the separation filter screen 301. The specific operation is as follows: The driving component 4 is driven to rotate the connecting pipe 302, so that the communication holes on the connecting pipe 302 communicate with the water inlet holes on the water guiding shell 303. At this time, the outlet pipe 3021 provided on the connecting pipe 302 communicates with one of the liquid guiding pipes 103. The test sample containing all planktonic algae above the separation filter screen 301 will enter the connecting pipe 302 and then be discharged and collected through the liquid guiding pipe 103. After the collection of the test sample above the separation filter screen 301 is completed, the plug of the other liquid guiding pipe 103 is opened to collect the test sample below the separation filter screen 301, thus realizing the separated collection of samples in the water quality sampling bucket 1, that is, statistical collection of various information of the water quality at the sampling point, and solving the drawback that the traditional water quality sampling bucket 1 can only collect one kind of information at a time.

[0041] Further, the bucket cover 101 is arranged at the upper end of the adjusting rod 304 through a locking bolt 307, and internal threads for cooperating with the locking bolt 307 are provided in the adjusting rod 304.

[0042] Further, a reinforcing rod for strengthening the strength of the adjusting rod 304 is provided in the water quality sampling bucket 1.

[0043] Further, an adjusting rod 304 is also provided on the connecting pipe 302 through threaded connection. A plurality of water blocking components for controlling the opening and closing of the water inlet 102 are provided on the adjusting rod 304. The water blocking component includes a connecting rod 305 provided on the adjusting rod 304. The other end of the connecting rod 305 is provided with a water blocking member 306, and the water blocking member 306 abuts against the water inlet 102 on the side wall of the water quality sampling bucket 1.

[0044] The specific principle of water body collection of the water quality sampling bucket 1 in the present utility model is as follows: The driving component 4 works, and then drives the connecting pipe 302 to rotate intermittently. Since the adjusting rod 304 is also provided on the connecting pipe 302 through threaded connection, the intermittent rotation of the connecting pipe 302 can drive the adjusting rod 304 to rotate, that is, the driving component 4 can drive the adjusting rod 304 to rotate;

[0045] Four water inlets 102 are provided on the side wall of the water quality sampling bucket 1. Therefore, four water blocking components are provided on the adjusting rod 304. In the initial state, as Figure 2As shown in the figure, the water blocking member 306 can block the water inlet 102 to prevent liquid from entering the water quality sampling bucket 1. When the water quality sampling bucket 1 sinks to the sampling point, the driving assembly 4 works to drive the adjusting rod 304 to rotate, and then drives the water blocking member 306 to rotate around the central axis of the adjusting rod 304. After rotation, the water blocking member 306 can no longer block the water inlet 102, and the liquid will enter the water quality sampling bucket 1 through the water inlet 102 as Figure 3 shown in the figure. When the liquid enters the water quality sampling bucket 1, the two air vents on the bucket cover 101 can discharge the gas in the water quality sampling bucket 1, thereby maintaining the pressure difference inside and outside the water quality sampling bucket 1.

[0046] Embodiment III

[0047] Please refer to Figures 5-7 , this embodiment is basically the same as Embodiment I. This embodiment is made on the basis of Embodiment I and has the same beneficial effects as Embodiment I. For the same parts, please refer to each other and will not be elaborated here in detail.

[0048] As a preferred technical solution of this embodiment, the driving assembly 4 includes a driving shaft 401 and a driven shaft 402 rotatably arranged in the counterweight housing 2. A driving member 403 and a driven member 404 are respectively arranged on the driving shaft 401 and the driven shaft 402. The driving member 403 and the driven member 404 are arranged in cooperation with each other. In actual manufacturing, the driving member 403 and the driven member 404 are the driving dial and the grooved wheel in the Geneva mechanism. Since the driving dial can drive the grooved wheel to rotate, but the grooved wheel cannot rotate freely due to the limitation of the driving dial during rotation, the driving member 403 and the driven member 404 also have a self-locking characteristic. In the present utility model, the number of grooves of the driven member 404 is 3, so the single angular displacement of the driven member 404 is 120°, and the single angular displacement of the connecting pipe 302 during rotation is 120°; one end of the driven shaft 402 penetrates through the counterweight housing 2 and is fixedly arranged with one end of the connecting pipe 302. A driving motor 405 is further arranged on the counterweight housing 2, and the output end of the driving motor 405 is fixedly arranged with one end of the driving shaft 401.

[0049] The working principle of the driving component 4 in this utility model is as follows: When the driving motor 405 operates, it can drive the rotation of the driving shaft 401. The rotation of the driving shaft 401 can drive the rotation of the driving member 403. Since the driving member 403 and the driven member 404 are arranged in cooperation with each other, the rotation of the driving member 403 can drive the rotation of the driven member 404, thereby driving the rotation of the driven shaft 402. Since one end of the driven shaft 402 penetrates through the counterweight housing 2 and is fixedly arranged with one end of the communication pipe 302, the operation of the driving motor 405 can drive the intermittent rotation of the communication pipe 302, and the angular displacement of each rotation of the communication pipe 302 is 120°. In the initial state, the water inlet hole and the communication hole are arranged in an interleaved manner. At this time, the water inlet 102 on the side wall of the water quality sampling bucket 1 is in an open state. When conducting water quality sampling, the driving motor 405 is started. After the communication pipe 302 rotates 120°, the water blocking component blocks the water inlet 102. At this time, the water quality sampling bucket 1 can be sunk into the water. Under the action of the counterweight housing 2, the water quality sampling bucket 1 can smoothly dive. After reaching the specified sampling point, the driving motor 405 is started, so that the communication pipe 302 rotates 120°, and then the water blocking component returns to the initial state. At this time, the water inlet 102 is opened, and the liquid enters the water quality sampling bucket 1 through the four water inlets 102. However, the water inlet hole and the communication hole are arranged in an interleaved manner, that is, the liquid entering the water quality sampling bucket 1 will not enter the communication pipe 302.

[0050] Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the above embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiments.

[0051] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A water quality sampling device for environmental detection, comprising a water quality sampling bucket (1) and a bucket lid (101), characterized in that: A plurality of water inlet ports (102) are formed in the side wall of the water quality sampling bucket (1), and a sampling assembly (3) for separating and sampling the sampling liquid is arranged in the water quality sampling bucket (1). The sampling assembly (3) includes a partition filter screen (301) arranged in the water quality sampling bucket (1) and a water guide shell (303) arranged on the partition filter screen (301). A communication pipe (302) is rotatably arranged in the water guide shell (303). An adjusting rod (304) is arranged on the communication pipe (302), and a plurality of water blocking assemblies for controlling the opening and closing of the water inlet ports (102) are arranged on the adjusting rod (304). A counterweight shell (2) is arranged at the lower end of the water quality sampling bucket (1), and a driving assembly (4) for intermittently rotating the communication pipe (302) is arranged in the counterweight shell (2).

2. The water quality sampling device for environmental detection according to claim 1, characterized in that: The adjusting rod (304) is arranged on the communication pipe (302) by means of threaded connection. The water blocking assembly includes a connecting rod (305) arranged on the adjusting rod (304). The other end of the connecting rod (305) is provided with a water blocking member (306), and the water blocking member (306) abuts against the water inlet port (102) on the side wall of the water quality sampling bucket (1).

3. The water quality sampling device for environmental detection according to claim 2, characterized in that: An inlet hole is formed in the water guide shell (303), a communication hole for cooperating with the inlet hole is arranged on the communication pipe (302), a water outlet pipe (3021) is arranged on the communication pipe (302) and below the partition filter screen (301). Two liquid guide pipes (103) for guiding liquid are arranged on the water quality sampling bucket (1). The end of the liquid guide pipe (103) is provided with a plug. The water outlet pipe (3021) and the liquid guide pipe (103) are in the same plane.

4. The water quality sampling device for environmental detection according to claim 3, characterized in that: The driving assembly (4) includes a driving shaft (401) and a driven shaft (402) rotatably arranged in the counterweight shell (2). A driving member (403) and a driven member (404) are respectively arranged on the driving shaft (401) and the driven shaft (402). The driving member (403) and the driven member (404) are arranged in cooperation with each other. One end of the driven shaft (402) penetrates through the counterweight shell (2) and is fixedly arranged with one end of the communication pipe (302). A driving motor (405) is further arranged on the counterweight shell (2), and the output end of the driving motor (405) is fixedly arranged with one end of the driving shaft (401).

5. The water quality sampling device for environmental detection according to claim 1, characterized in that: The number of the water inlet ports (102) is four, and they are evenly distributed in a circular shape in a plane.

6. The water quality sampling device for environmental detection according to claim 1, wherein: The bucket cover (101) is arranged at the upper end of the adjusting rod (304) through a locking bolt (307), and internal threads for cooperating with the locking bolt (307) are formed in the adjusting rod (304).

7. An environmental detection water quality sampling device according to claim 3, characterized in that: A reinforcing rod for strengthening the strength of the adjusting rod (304) is arranged in the water quality sampling bucket (1).

8. An environmental detection water quality sampling device according to claim 4, characterized in that: The angular displacement of the communication pipe (302) for each single rotation is 120°.

9. The water quality sampling device for environmental detection according to claim 1, wherein: Two air vent holes for maintaining the pressure difference inside and outside the bucket are arranged on the bucket cover (101).

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