A sampling device for online water quality monitoring
The online water quality monitoring and sampling device, designed using ball screws and electromagnets, solves the problem of large errors in water sample data, thereby improving the accuracy and efficiency of water quality testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LIHUAN TECH CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-05-26
AI Technical Summary
When existing water sampling equipment collects water samples at different depths, the increased weight of the bottle itself leads to large errors in the collected water sample data, reducing the accuracy of the test.
The installation tube is controlled by a ball screw and a drive motor to move at different depths in the water. The design of electromagnet and rubber sealing block ensures accurate water sample collection at different depths. The threaded connection of nut and screw improves stability and prevents position displacement.
It improved the accuracy and efficiency of water sample testing, reduced manpower consumption, and simplified the operation process.
Smart Images
Figure CN224286446U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water quality sampling equipment, and in particular to a sampling device for online water quality monitoring. Background Technology
[0002] The purpose of water sampling is to investigate the condition of water resources. After analyzing the water samples, it is determined whether the water quality meets the requirements. In the existing technology, when collecting water samples at different depths, a bottle is usually used, and a differential pressure device is set at the bottle mouth. When the bottle sinks to different depths in the water, the pressure on the differential pressure device at the bottle mouth is also different, so the differential pressure device can be opened to facilitate the extraction of the water solution at the required depth. Although this method is simple to operate, as the amount of water solution in the bottle gradually increases, the weight of the bottle itself also increases, causing the bottle to gradually sink in the water. Therefore, the water sample collected from the bottle comes from a wide range of water depths, resulting in a large error in the collected water sample data and reducing the accuracy of water quality testing at different depths. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sampling device for online water quality monitoring.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A water quality online monitoring sampling device includes an installation platform. A ball screw is movably mounted on the bottom of the installation platform. A rod is movably connected to the bottom end of the ball screw. The top end of the ball screw passes through the installation platform and is connected to a drive motor. An installation tube is connected to the movable end of the ball screw. A second telescopic hose is connected to the top end of the installation tube. One end of the second telescopic hose extends above the installation platform. A first telescopic hose is installed through the bottom end of the installation tube. A water pump is connected to one end of the first telescopic hose. An adjustment mechanism is provided inside the installation tube.
[0006] Preferably, the adjusting mechanism includes a connecting block, which is installed inside the mounting tube. An electromagnet is installed at the bottom of the connecting block, and a metal block elastically connected to the connecting block is provided below the electromagnet. A rubber sealing block is installed at the bottom of the metal block, and the outer circumferential side of the rubber sealing block is in close contact with the inner side of the mounting tube.
[0007] Preferably, a plurality of hollow tubes are installed at the bottom of the connecting block, and a sliding rod is inserted into the bottom end of the hollow tube. The bottom end of the sliding rod is installed on the top of the metal block. A sliding groove is opened on the side of the hollow tube. A limit block is installed at one end of the sliding rod, and one end of the limit block extends into the sliding groove. A tension spring is slidably sleeved on the outer surface of the hollow tube, and the two ends of the tension spring are respectively connected to the connecting block and the metal block.
[0008] Preferably, the movable end of the ball screw is connected to a connecting rod, and one end of the connecting rod is installed outside the mounting tube.
[0009] Preferably, a flow guide is installed at the bottom of the mounting tube.
[0010] Preferably, the top and bottom ends of the ball screw are connected to the mounting platform and the insertion rod respectively via bearing seats.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] This solution utilizes a drive motor and a ball screw. The ball screw is fixed in the water by a rod, and the drive motor controls the rotation of the ball screw's lead screw, which in turn moves the nut along the lead screw's axial direction. This allows the nut to move the installation tube at different depths in the water, enabling the collection of aqueous solutions at varying depths. Furthermore, the threaded connection between the nut and the lead screw enhances the stability of the installation tube in the collected aqueous solution, preventing displacement of the installation tube during sampling at different depths and improving the accuracy of the detection data when testing water samples at different depths. Attached Figure Description
[0013] Figure 1 This is a structural diagram of a water quality online monitoring sampling device according to the present invention;
[0014] Figure 2 This is a schematic diagram of the internal structure of the installation pipe of a sampling device for online water quality monitoring according to this utility model;
[0015] Figure 3 This is a schematic diagram of the hollow tube and sliding rod connection structure of a sampling device for online water quality monitoring according to this utility model;
[0016] Figure 4 This is a top view of the installation pipe and connecting block connection of a sampling device for online water quality monitoring according to this utility model.
[0017] In the diagram: 1. First telescopic hose; 2. Second telescopic hose; 3. Drive motor; 4. Ball screw; 5. Connecting rod; 6. Insert rod; 7. Flow guide; 8. Mounting pipe; 9. Hollow pipe; 10. Connecting block; 11. Electromagnet; 12. Tension spring; 13. Metal block; 14. Rubber sealing block; 15. Limiting block; 16. Slide groove; 17. Slide rod; 18. Water pump; 19. Mounting platform. Detailed Implementation
[0018] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.
[0019] like Figure 1-4 The sampling device for online water quality monitoring shown includes an installation platform 19. A ball screw 4 is movably installed at the bottom of the installation platform 19. An insertion rod 6 is movably connected to the bottom end of the ball screw 4. The insertion rod 6 is inserted entirely into the soil, which improves the stability of the ball screw 4 in the water.
[0020] The top end of the ball screw 4 passes through the mounting platform 19 and is connected to the drive motor 3. The movable end of the ball screw 4 is connected to the mounting tube 8. The ball screw 4 is fixed in the water by the insert rod 6. The drive motor 3 controls the rotation of the lead screw of the ball screw 4, thereby driving the nut in the ball screw 4 to move along the lead screw axis. This facilitates the nut to drive the mounting tube 8 to move at different depths in the water, so as to collect aqueous solutions at different depths as needed. Furthermore, the threaded connection between the nut and the lead screw improves the stability of the mounting tube in collecting aqueous solutions.
[0021] The top end of the installation pipe 8 is connected to a second telescopic hose 2. One end of the second telescopic hose 2 extends above the installation platform 19. When the second telescopic hose 2 is connected to the first telescopic hose 1, the water pump 18 continues to work, and the outside gas is transported to the first telescopic hose 1 through the second telescopic hose 2, so that the aqueous solution in the first telescopic hose 1 can be discharged.
[0022] A first telescopic hose 1 is installed through the bottom end of the installation pipe 8. One end of the first telescopic hose 1 is connected to a water pump 18. An adjustment mechanism is provided inside the installation pipe 8. The adjustment mechanism includes a connecting block 10, which is installed inside the installation pipe 8. An electromagnet 11 is installed at the bottom of the connecting block 10. Below the electromagnet 11, a metal block 13 is elastically connected to the connecting block 10. A rubber sealing block 14 is installed at the bottom of the metal block 13. The outer circumference of the rubber sealing block 14 is in close contact with the inner circumference of the installation pipe 8. Multiple hollow tubes 9 are installed at the bottom of the connecting block 10. A sliding rod 17 is inserted into the bottom end of each hollow tube 9. The bottom end of the sliding rod 17 is installed on the top of the metal block 13. A groove 16 is formed on the side of each hollow tube 9. A limit block 15 is installed at one end of the sliding rod 17, and one end of the limit block 15 extends into the groove 16. A tension spring 12 is slidably fitted onto the outer surface of the hollow tube 9. Both ends of the tension spring 12 are connected to the connecting block 10 and the metal block 13, respectively. When collecting water samples, the electromagnet 11 is energized. The metal block 13 is held in place, and the tension spring 12 is in an energy storage state. At this time, the metal block 13 drives the rubber sealing block 14 to be positioned above the connection between the first telescopic hose 1 and the installation pipe 8. At this time, the inlet of the installation pipe 8 and the first telescopic hose 1 are in a connected state, which facilitates the water solution to flow from the inlet into the first telescopic hose 1 and then be discharged from the outlet of the water pump 18. After the water sample collection at this depth is nearly completed, the electromagnet 11 can be de-energized. After the electromagnet 11 loses its magnetism, the tension spring 12 pushes the metal block 13 downward through elastic potential energy. The metal block 13 drives the rubber sealing block 14 to move to the lower part of the connection. At this time, the inlet and the first telescopic hose 1 are in a blocked state. At this time, the first telescopic hose 1 and the second telescopic hose 2 are in a connected state, which facilitates the water pump 18 to continue to work and discharge the water sample remaining in the first telescopic hose 1, preventing the mixing of water samples from two different depths. In addition, the installation pipe 8 prevents the water solution from entering the first telescopic hose 1 during the movement of water, thus improving the accuracy of water sample collection.
[0023] The movable end of the ball screw 4 is connected to a connecting rod 5. One end of the connecting rod 5 is installed outside the mounting tube 8. The connection rod 5 improves the stable connection between the mounting tube 8 and the ball screw 4.
[0024] A flow guide shroud 7 is installed at the bottom of the installation pipe 8. The flow guide shroud 7 is used to guide the water flow, so that the water flows into the installation pipe 8 better, thereby improving the efficiency of the aqueous solution flowing into the installation pipe 8.
[0025] The top and bottom ends of the ball screw 4 are connected to the mounting platform 19 and the insert rod 6 respectively through bearing seats. The bearing seats facilitate the rotation of the ball screw 4 between the mounting platform 19 and the insert rod 6 after being subjected to force.
[0026] In this solution, the electromagnet 11, the water pump 18, and the drive motor 3 are all connected to the controller via wires. The controller is connected to the battery via wires. The battery can be connected to an external solar panel. The controller is a power switch or a PLC controller. The electromagnet 11 is an IP68 waterproof type.
[0027] This solution is suitable for collecting water samples at different depths at the same location at different times. It can reduce manpower consumption. Staff only need to take the water sample bottle to collect the aqueous solution discharged from the water pump 18, which simplifies the operation and improves the sampling efficiency.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A sampling device for online water quality monitoring, comprising an installation platform (19), characterized in that, A ball screw (4) is movably installed at the bottom of the installation platform (19). A plug rod (6) is movably connected to the bottom end of the ball screw (4). The top end of the ball screw (4) passes through the installation platform (19) and is connected to a drive motor (3). An installation tube (8) is connected to the movable end of the ball screw (4). A second telescopic hose (2) is connected to the top end of the installation tube (8). One end of the second telescopic hose (2) extends to the top of the installation platform (19). A first telescopic hose (1) is installed through the bottom end of the installation tube (8). A water pump (18) is connected to one end of the first telescopic hose (1). An adjustment mechanism is provided inside the installation tube (8).
2. The sampling device for online water quality monitoring according to claim 1, characterized in that, The adjustment mechanism includes a connecting block (10), which is installed inside the mounting tube (8). An electromagnet (11) is installed at the bottom of the connecting block (10). Below the electromagnet (11) is a metal block (13) that is elastically connected to the connecting block (10). A rubber sealing block (14) is installed at the bottom of the metal block (13). The outer circumferential side of the rubber sealing block (14) is in close contact with the inner circumferential side of the mounting tube (8).
3. The sampling device for online water quality monitoring according to claim 2, characterized in that, The bottom of the connecting block (10) is equipped with a plurality of hollow tubes (9), and a slide rod (17) is inserted into the bottom end of the hollow tube (9). The bottom end of the slide rod (17) is installed on the top of the metal block (13). A sliding groove (16) is provided on the side of the hollow tube (9). A limit block (15) is installed at one end of the slide rod (17). One end of the limit block (15) extends into the sliding groove (16). A tension spring (12) is slidably sleeved on the outer surface of the hollow tube (9). The two ends of the tension spring (12) are respectively connected to the connecting block (10) and the metal block (13).
4. The sampling device for online water quality monitoring according to claim 1, characterized in that, The movable end of the ball screw (4) is connected to a connecting rod (5), and one end of the connecting rod (5) is installed outside the mounting tube (8).
5. A sampling device for online water quality monitoring according to claim 1, characterized in that, A flow guide (7) is installed at the bottom of the mounting tube (8).
6. The sampling device for online water quality monitoring according to claim 1, characterized in that, The top and bottom ends of the ball screw (4) are connected to the mounting platform (19) and the insert rod (6) respectively via bearing seats.