A water quality testing and extraction device
By using a spring locking mechanism between the lever and the hole, and an internal slider groove guide, the problem of water intake deviation caused by disturbance during ship navigation is solved, thus achieving a water quality testing device design that is accurate in sampling and low in power consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 吴溪
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-31
AI Technical Summary
Existing water quality testing devices are prone to leakage problems due to the combined disturbances of waves, tides, and the ship's propulsion system during ship navigation, which cause periodic displacement in three-dimensional space.
The system employs a spring-loaded locking mechanism with a locking rod and a locking hole, combined with the sliding guide of the inner slider and the sliding groove, to achieve millimeter-level precise positioning of the pumping mechanism, ensuring the stability of the sampling head's verticality and preventing the water intake from deviating.
Maintaining sampling accuracy under complex water flow and high sea state conditions, ensuring data reliability, reducing the risk of leakage, suitable for small monitoring vessels, reducing power consumption and extending equipment endurance, and meeting the needs of long-term continuous operation.
Smart Images

Figure CN224581201U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of extraction device technology, specifically relating to a water quality testing extraction device. Background Technology
[0002] Water quality testing, as a core component of environmental monitoring, water resource management, and drinking water safety assurance, directly impacts public health and ecological balance through its accuracy and timeliness. With increasingly stringent industrial wastewater discharge standards, the spread of agricultural non-point source pollution, and the growing demand for urban wastewater treatment, water quality testing scenarios have expanded from traditional laboratory analysis to diversified models such as rapid on-site testing and continuous online monitoring. However, existing water quality testing technologies still face significant technical bottlenecks in sample extraction and dispensing, limiting testing efficiency and data reliability. In traditional methods, water quality testing involves navigating a vessel to the middle of a river and extracting samples from the vessel. However, the vessel is continuously subjected to combined disturbances from waves, tides, and the ship's propulsion system, resulting in periodic displacements in three-dimensional space. This makes it difficult for traditional fixed sampling devices to stably align with the water intake, increasing the risk of leakage during extraction. Therefore, the inventors propose a water quality testing extraction device. Utility Model Content
[0003] (1) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a water quality testing and extraction device. This device aims to solve the problem that existing vessels are continuously subjected to combined disturbances from waves, tides, and the ship's propulsion system during navigation, resulting in periodic displacements in three-dimensional space. This makes it difficult for traditional fixed sampling devices to stably align with the water intake, and extraction operations are prone to leakage.
[0005] (2) Technical solution
[0006] To address the aforementioned technical problems, this utility model provides a water quality testing and extraction device, comprising a fixed box, storage cups, and a pumping mechanism. Multiple storage cups are spaced apart on the upper surface of the fixed box. The pumping mechanism is slidably mounted on the side of the fixed box. The pumping mechanism includes a movable box, a fixed block, a pumping pump, a drain pipe, and a suction pipe. The pumping pump is embedded inside the movable box. The drain pipe and suction pipe pass through the movable box and are connected to the pump. The fixed block is fixedly mounted above the movable box. Multiple sets of mounting cavities are spaced apart on the upper surface of the fixed box. An inner clamping block protrudes from the inner wall of each mounting cavity, and the inner clamping block conforms to the outer wall of the storage cup to increase the clamping force.
[0007] Optionally, the upper surface of the fixing box is provided with multiple locking holes corresponding to the storage cup, and a locking rod that is adapted to the locking holes passes vertically through the inside of the fixing block.
[0008] Optionally, the fixing block has a vertically oriented sliding hole inside, and an upper fixing ring is fixed on the outer wall of one end of the clamp rod that passes through the sliding hole. A spring is connected below the upper fixing ring, and the spring is sleeved on the outside of the clamp rod.
[0009] Optionally, the other end of the spring is fixedly connected to a lower fixing ring, which is slidably connected to the outer wall of the clamping rod and fixedly connected to the inner wall of the sliding hole.
[0010] Optionally, the fixed box has an inner sliding groove horizontally formed on the surface facing the movable box.
[0011] Optionally, an inner slider protrudes from the outer wall of the movable box, and the inner slider is adapted to slide in an inner groove.
[0012] Optionally, the drain pipe extends above the storage cup, and the pumping pipe is placed into the water source.
[0013] (3) Beneficial effects
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The device adopts a spring-loaded locking mechanism of a locking rod and a locking hole, combined with the sliding guide of the inner slider and the sliding groove, which can achieve millimeter-level precise positioning of the pumping mechanism. Even in complex water flow or high sea state environments, it can still maintain the verticality of the sampling head and avoid the deviation of the water intake caused by the hull swaying, ensuring the accuracy of sampling depth and position, and providing reliable data support for subsequent detection. It adopts lightweight materials and integrated design, making the whole machine lightweight and small in size, which can be flexibly deployed on small monitoring vessels, breaking through the limitations of traditional equipment on the type of vessel. The low power consumption design extends the equipment's endurance and reduces the dependence on the ship's power generation system, meeting the needs of long-term continuous operation. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the extraction and discharge mechanism.
[0018] Figure 3 This is a schematic diagram of the fixing ring and clamping rod structure;
[0019] Figure 4 This is a partial structural diagram of the storage cup and the fixing box.
[0020] The markings in the attached diagram are as follows: 1. Fixed box; 2. Inner slide groove; 3. Pumping mechanism; 4. Locking hole; 5. Storage cup; 6. Drain pipe; 7. Locking rod; 8. Fixed block; 9. Inner slider; 10. Pumping pump; 11. Moving box; 13. Upper fixing ring; 14. Spring; 15. Sliding hole; 16. Lower fixing ring; 17. Mounting cavity; 18. Inner clamping block; 19. Pumping pipe. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] This specific embodiment is a water quality testing and extraction device, the structural schematic diagram of which is shown below. Figure 1 As shown, it includes a fixed box 1, storage cups 5 and a pumping mechanism 3. Multiple storage cups 5 are spaced apart and mounted on the upper surface of the fixed box 1. The pumping mechanism 3 is slidably mounted on the side of the fixed box 1.
[0023] Reference Figure 2 The pumping mechanism 3 includes a movable box 11, a fixed block 8, a pumping unit 10, a drain pipe 6, and a suction pipe 19. The pumping unit 10 is embedded inside the movable box 11. The drain pipe 6 and the suction pipe 19 pass through the movable box 11 and are connected to the pumping unit 10. The fixed block 8 is fixedly installed above the movable box 11. An inner sliding groove 2 is horizontally opened on the surface of the fixed box 1 facing the movable box 11. An inner slider 9 protrudes from the outer wall of the movable box 11 and is slidably installed in accordance with the inner sliding groove 2. The drain pipe 6 passes through the top of the storage cup 5, and the suction pipe 19 is placed into the water source.
[0024] Reference Figure 4 The upper surface of the fixing box 1 has multiple sets of mounting cavities 17 spaced apart. The inner wall of the mounting cavity 17 is provided with an inner clamping block 18 that fits against the outer wall of the storage cup 5 to increase the clamping force. The upper surface of the fixing box 1 has multiple locking holes 4 corresponding to the storage cup 5. The inside of the fixing block 8 has a locking rod 7 that is adapted to the locking hole 4.
[0025] Reference Figure 3The fixing block 8 has a vertically oriented sliding hole 15 inside. An upper fixing ring 13 is fixed to the outer wall of one end of the clamping rod 7 that passes through the sliding hole 15. A spring 14 is connected below the upper fixing ring 13 and is sleeved on the outside of the clamping rod 7. A lower fixing ring 16 is fixedly connected to the other end of the spring 14. The lower fixing ring 16 is slidably connected to the outer wall of the clamping rod 7 and fixedly connected to the inner wall of the sliding hole 15.
[0026] Working principle: After the vessel sails to the target waters, the testing personnel activate the device according to the preset sampling points. The moving box 11 of the extraction mechanism 3 slides with the inner sliding groove 2 of the fixed box 1 via the inner slider 9. When the moving box 11 moves above the target storage cup 5, the locking rod 7 inside the fixed block 8 is ejected downward by the elastic force of the spring 14 and locks into the corresponding locking hole 4 on the upper surface of the fixed box 1, realizing the precise positioning and mechanical locking of the extraction mechanism 3 and eliminating displacement deviation caused by the hull swaying.
[0027] The pump 10 is started, and a water sample is drawn from the water source through the pump pipe 19. After being pressurized by the pump body, the water sample is transported to the target storage cup 5 through the drain pipe 6. The storage cup 5 is elastically clamped by the inner clamping block 18 on the inner wall of the mounting cavity 17, which ensures the stability of the container and avoids the risk of breakage caused by rigid fixation.
[0028] When the sample volume in a single cup reaches the preset value, the pump 10 stops working, the lever 7 is pressed by external force to compress the spring 14 and disengage from the locking hole 4, the pumping mechanism 3 unlocks and slides above the next storage cup 5, and the positioning-extraction-dispensing process is repeated until all samples are collected. The dispensed storage cup 5 can be sealed independently to meet subsequent physicochemical, biological or toxicological testing needs.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A water quality detection extraction device, comprising a fixed box (1), a storage cup (5) and a pumping mechanism (3), characterized in that, The upper surface of the fixed box (1) is equipped with a plurality of spaced storage cups (5), and the extraction mechanism (3) is slidably installed on the side of the fixed box (1). The pumping mechanism (3) includes a movable box (11), a fixed block (8), a pumping pump (10), a drain pipe (6), and a pumping pipe (19). The pumping pump (10) is embedded inside the movable box (11). The drain pipe (6) and the pumping pipe (19) pass through the movable box (11) and are connected to the pumping pump (10). The fixed block (8) is fixedly installed above the movable box (11). The upper surface of the fixed box (1) has multiple sets of mounting cavities (17) spaced apart. The inner wall of the mounting cavity (17) is provided with an inner clamping block (18), which fits against the outer wall of the storage cup (5) to increase the clamping force.
2. The water quality detection extraction device according to claim 1, characterized in that, The upper surface of the fixed box (1) is provided with multiple locking holes (4) corresponding to the storage cup (5), and the inside of the fixed block (8) has a locking rod (7) that is adapted to the locking holes (4) passing through it vertically.
3. The water quality detection extraction device according to claim 2, characterized in that, The fixed block (8) has a vertically opening sliding hole (15) inside. The outer wall of the end of the clamp rod (7) that passes through the sliding hole (15) is fixed with an upper fixing ring (13). A spring (14) is connected below the upper fixing ring (13). The spring (14) is sleeved on the outside of the clamp rod (7).
4. The water quality detection extraction device according to claim 3, characterized in that, The other end of the spring (14) is fixedly connected to a lower fixing ring (16), which is slidably connected to the outer wall of the clamping rod (7) and fixedly connected to the inner wall of the sliding hole (15).
5. The water quality detection extraction device according to claim 1, characterized in that, The fixed box (1) has an inner groove (2) horizontally opened on the surface facing the movable box (11).
6. The water quality detection extraction device according to claim 5, characterized in that, The outer wall of the movable box (11) is provided with an inner slider (9), which is adapted to slide and install with the inner sliding groove (2).
7. The water quality detection extraction device according to claim 1, characterized in that, The drain pipe (6) is inserted above the storage cup (5), and the water pump (19) is placed into the water source.