Layered sampler for water quality inspection

Abstract

The utility model relates to the technical field of water quality inspection stratified sampling, in particular to a stratified sampler for water quality inspection, which comprises a shell and a lead block, the right side of the outer wall of the shell is fixedly connected with the lead block, a water quality stratified sampling structure is arranged in the middle of the right side of the inner wall of the shell, and the right side of the upper end of the outer wall of the shell is in threaded connection with a top cover. According to the stratified sampler for water quality inspection, through a water quality stratified sampling structure, an electric telescopic rod drives a first piston to slide rightwards in a shell, the electric telescopic rod drives the first piston to move rightwards, the first piston pulls a second piston and a third piston to move synchronously, and a wireless module and the electric telescopic rod are powered on through a storage battery; an external remote controller is in signal connection with the wireless module, an electric telescopic rod can be driven by the external remote controller to drive a first piston, a second piston and a third piston to move, water bodies of different depths are collected into the shell, the stratified sampling device can be suitable for stratified sampling of water areas of different depths, and then the practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of stratified sampling technology for water quality testing, specifically a stratified sampler for water quality testing. Background Technology

[0002] With industrial development and improved living standards, industrial wastewater, domestic sewage, and other pollutants are causing increasingly serious pollution to rivers, lakes, and seas, leading to severe deterioration of water quality. Therefore, water quality monitoring is of great significance. Currently, water quality monitoring and testing usually requires water stratified samplers to sample the water. This paper presents a water quality testing stratified sampler.

[0003] For example, a water stratification sampler with announcement number "CN210863266U" features baffles that are tightly abutted against the inner wall of the sampling chamber. Connecting rods drive the baffles to move up and down, linking multiple baffles together. The connecting rods pass through the sampling chamber and slide within it, while the top of the connecting rod passes through the top of the sampling rod and slides within it. This reduces disturbance to the water at the inlet and improves the accuracy of water detection. However, in this method, the sampling depth is limited by the length of the sampling rod, allowing only manual sampling of shallower water. For deeper water, it cannot be operated remotely for stratified sampling, resulting in limited practicality. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the sampling depth is limited by the length of the sampling rod, which means that sampling can only be done manually in shallow water. For deeper water, it is impossible to operate remotely to perform stratified sampling, resulting in low practicality. Therefore, this invention proposes a stratified sampler for water quality testing.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a stratified sampler for water quality testing, including a shell and a lead block. The lead block is fixedly connected to the right side of the outer wall of the shell. A water quality stratified sampling structure is provided in the middle of the right side of the inner wall of the shell. The upper right side of the outer wall of the shell is threadedly connected to the top cover. A cable is fixedly connected to the middle of the upper end of the outer wall of the shell. The outer wall of the cable is machined with graduations.

[0007] Preferably, the water quality stratification sampling structure includes an electric telescopic rod, with a first piston fixedly connected to the output end of the electric telescopic rod. The left side of the outer wall of the first piston is fixedly connected to a second piston via a bracket, and the left side of the outer wall of the second piston is fixedly connected to a third piston via a bracket. A battery is fixedly connected to the upper right side of the inner wall of the outer casing, and the battery is electrically connected to the electric telescopic rod via a cable. A wireless module is fixedly connected to the lower right side of the inner wall of the outer casing, and the wireless module is electrically connected to the battery and the electric telescopic rod via a cable.

[0008] Preferably, the bottom of the electric telescopic rod is fixedly connected to the outer casing.

[0009] Preferably, the outer walls of the first piston, the second piston, and the third piston are in contact with the outer shell.

[0010] Preferably, an observation window is fixedly connected to the middle of the front side of the outer casing.

[0011] This utility model proposes a stratified sampler for water quality testing, which has the following advantages: Through the stratified water quality sampling structure, a battery powers the wireless module and the electric telescopic rod. The wireless module is connected to an external remote control, which sends a signal to the wireless module. The wireless module then drives the electric telescopic rod to extend or retract. The electric telescopic rod causes the first piston to slide outward to its limit distance. The electric telescopic rod then causes the first piston to slide to the right within the outer casing. The electric telescopic rod moves the first piston to the right, and the first piston pulls the second and third pistons to move synchronously. Powering the wireless module and the electric telescopic rod through the battery, and connecting the external remote control to the wireless module, allows the external remote control to drive the electric telescopic rod, which in turn moves the first, second, and third pistons. This allows water from different depths to be collected within the outer casing, making it suitable for stratified sampling of water at different depths, thus improving its practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 A front sectional view;

[0014] Figure 3 for Figure 2 A schematic diagram of the third piston protruding from the center.

[0015] Figure 4 for Figure 2 Enlarged view of A in the middle;

[0016] Figure 5 for Figure 2 A magnified view of B in the middle.

[0017] In the diagram: 1. Water quality stratification sampling structure; 101. Electric telescopic rod; 102. Battery; 103. Wireless module; 104. First piston; 105. Second piston; 106. Third piston; 2. Outer shell; 3. Cable; 4. Lead block; 5. Top cover. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] See attached document Figure 1-5 In this embodiment, a water quality testing stratified sampler includes a shell 2 and a lead block 4. The right side of the outer wall of the shell 2 is fixedly connected to the lead block 4. A water quality stratified sampling structure 1 is provided in the middle of the right side of the inner wall of the shell 2. The upper right side of the outer wall of the shell 2 is threadedly connected to the top cover 5. A sealing ring is fixed to the upper end of the inner wall of the top cover 5 to ensure the relative sealing between the shell 2 and the top cover 5. A cable 3 is fixedly connected to the middle of the upper end of the outer wall of the shell 2. The cable 3 is made of woolen material and the outer wall of the cable 3 is machined with graduations.

[0020] The bottom of the electric telescopic rod 101 is fixedly connected to the outer shell 2. The outer walls of the first piston 104, the second piston 105 and the third piston 106 are in contact with the outer shell 2. The first piston 104, the second piston 105 and the third piston 106 can slide inside the outer shell 2 and ensure relative sealing. An observation window is fixedly connected to the middle of the front side of the outer shell 2. Users can see the water quality inside the outer shell 2 through the observation window.

[0021] See attached document Figure 2-5 The water quality stratified sampling structure 1 includes an electric telescopic rod 101. The electric telescopic rod 101 can meet the actual needs of the work. The output end of the electric telescopic rod 101 is fixedly connected to a first piston 104. The electric telescopic rod 101 can drive the first piston 104 to move. The left side of the outer wall of the first piston 104 is fixedly connected to the second piston 105 through a bracket.

[0022] The second piston 105 is fixedly connected to the third piston 106 on the left side of its outer wall via a bracket. A battery 102 is fixedly connected to the upper right side of the inner wall of the outer casing 2. The battery 102 is designed to meet the actual working requirements. A charging port is provided at the upper end of the battery 102 for charging the battery. The battery 102 is electrically connected to the electric telescopic rod 101 via a cable. A wireless module 103 is fixedly connected to the lower right side of the inner wall of the outer casing 2. The wireless module 103 is electrically connected to the battery 102 and the electric telescopic rod 101 via a cable.

[0023] The wireless module 103, model ESP8266, features high-speed transmission, medium to long distance (typically tens to hundreds of meters), and supports the TCP / IP protocol stack. The wireless module 103 consists of: a radio frequency transceiver (responsible for sending and receiving radio waves to achieve wireless data transmission); an antenna (used to transmit and receive radio waves; the antenna's design and performance directly affect the transmission distance and stability of the wireless module); a microcontroller (some wireless modules integrate a microcontroller for processing data and controlling communication protocols); a communication protocol stack (wireless modules typically integrate a specific communication protocol stack (such as Bluetooth or Wi-Fi) for data encoding, decoding, and transmission); and an interface circuit (wireless modules typically provide standard interfaces (such as UART, SPI, and I2C) for communication with the host device (such as a microcontroller or single-chip microcomputer).

[0024] Working principle:

[0025] Stratified sampling for water quality testing:

[0026] When water quality testing requires stratified sampling, the wireless module 103 and the electric telescopic rod 101 are first powered by the battery 102. The battery 102 has a charging port at the top. The top cover 5 is rotated outward to separate it from the outer shell 2. The battery 102 can be periodically charged through the charging port. The top cover 5 is rotated back to seal the outer shell 2. A sealing ring is fixed on the upper part of the inner wall of the top cover 5 to ensure the relative sealing of the connection between the top cover 5 and the outer shell 2. Then, the wireless module 103 is connected to an external remote control. The external remote control can send a signal to the wireless module 103, which in turn drives the electric telescopic rod 101 to extend or retract.

[0027] First, the electric telescopic rod 101 drives the first piston 104 to slide outward to its maximum distance. The electric telescopic rod 101 then pushes the first piston 104 to its maximum distance (see reference). Figure 3 The first piston 104 will not detach from the outer shell 2. The first piston 104 pushes the second piston 105 and the third piston 106 out of the outer shell 2. Then the staff will unfold the cable 3 and slowly pull the device body into the water to be sampled. When the device body enters the water, the staff will see and record the scale on the cable 3. Then the cable 3 will continue to be unfolded to make the device body sink in the water. The lead block 4 plays a counterweight role to ensure that the device body can sink and avoid floating on the water surface.

[0028] Subsequently, based on the scale of the subsequent deployment cable 3 and the initial recording cable 3, the staff determined the descent distance of the device body in the water. At the same time, as the device body descends, the corresponding water layer will flow to the left end of the inner shell 2. When the device body descends to the water sampling position, the electric telescopic rod 101 is driven by an external remote control to drive the first piston 104 to slide to the right inside the shell 2. The first piston 104 drives the second piston 105 to move to the right and enter the shell 2. In this way, the water quality to be tested can be collected into the shell 2 through the first piston 104 and the second piston 105.

[0029] When it is necessary to sample and test the water quality of the lower layer of water, continue to extend cable 3 to lower the device body again. At the same time, the descent distance of the device body is determined by the above method. When the device body descends to a suitable position in the water body, the corresponding water layer will flow to the left end of the outer shell 2. The electric telescopic rod 101 is controlled again by the external remote control to drive the first piston 104 to move to the right. The first piston 104 pulls the second piston 105 and the third piston 106 to move synchronously, so that the third piston 106 enters the outer shell 2 and collects the water between the second piston 105 and the third piston 106 into the outer shell 2 for collection. The third piston 106 seals the left end of the outer shell.

[0030] Then, the operator can reel in cable 3 to remove the device from the water body, then remove external container one and connect it to the left opening of the outer shell 2. Using an external remote control, the electric telescopic rod 101 pushes the first piston 104 outward, causing the third piston 106 to detach from the outer shell 2. At this time, the water between the third piston 106 and the second piston 105 will flow into container one for collection. Then, container two is replaced and aligned with the left opening of the outer shell 2. The electric telescopic rod 101 pushes the first piston 104 outward again, causing the second piston 105 to detach from the outer shell 2. The water between the second piston 105 and the first piston 104 will flow into container two for collection. Then, the staff can test the water quality of the stratified samples inside container one and container two.

[0031] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A stratified sampler for water quality testing, comprising a housing (2) and a lead block (4), wherein the right side of the outer wall of the housing (2) is fixedly connected to the lead block (4), characterized in that: The inner wall of the outer shell (2) is provided with a water quality stratification sampling structure (1) in the middle of the right side. The upper right side of the outer wall of the outer shell (2) is threaded to the top cover (5). A cable (3) is fixedly connected to the middle of the upper side of the outer wall of the outer shell (2). The outer wall of the cable (3) is machined with scale. The water quality stratification sampling structure (1) includes an electric telescopic rod (101), the output end of which is fixedly connected to a first piston (104). The left side of the outer wall of the first piston (104) is fixedly connected to a second piston (105) via a bracket. The left side of the outer wall of the second piston (105) is fixedly connected to a third piston (106) via a bracket. The upper right side of the inner wall of the outer shell (2) is fixedly connected to a storage battery (102). The storage battery (102) is electrically connected to the electric telescopic rod (101) via a cable. The lower right side of the inner wall of the outer shell (2) is fixedly connected to a wireless module (103). The wireless module (103) is electrically connected to the storage battery (102) and the electric telescopic rod (101) via a cable.

2. The stratified sampler for water quality testing according to claim 1, characterized in that: The bottom of the electric telescopic rod (101) is fixedly connected to the outer shell (2).

3. The stratified sampler for water quality testing according to claim 2, characterized in that: The outer walls of the first piston (104), the second piston (105) and the third piston (106) are in contact with the outer shell (2).

4. The stratified sampler for water quality testing according to claim 1, characterized in that: An observation window is fixedly connected to the middle of the front side of the outer shell (2).

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