Water conservancy and water resource sampling device

Abstract

The application relates to the technical field of water resource sampling, in particular to a water conservancy and water resource sampling device which comprises a ship body, a sampling assembly and a pulling assembly, a placing groove area is arranged in the middle of the ship body, an oscillatable parallel sampling frame is arranged in the placing groove area, a plurality of sampling bottle groups arranged at equal intervals are arranged in the parallel sampling frame, a resistance triggering structure is adopted for the sampling bottle group, when the ship body moves, water pressure pushes the sampling outer cylinder to move backward, an inlet is automatically opened to complete sampling; when the ship body stops, a spring can reset the sampling outer cylinder, the sampling outer cylinder seals the sampling inner cylinder, and water samples are prevented from being polluted; the pulling assembly controls the depth of the parallel sampling frame, and the water area with different water depths is adapted, the device can automatically and synchronously collect water samples with different depths at a time, the sampling depth can be adjusted, and the device is suitable for water resource sampling in water areas such as rivers and lakes.

Description

Technical Field

[0001] This invention relates to the field of water resource sampling technology, specifically to a water conservancy water resource sampling device. Background Technology

[0002] Water resources sampling refers to the process of collecting samples from water bodies (rivers, lakes, reservoirs, etc.) using scientific sampling methods to analyze water quality parameters (such as pH value, dissolved oxygen, heavy metal content, microbial indicators, etc.). It is a fundamental task for water quality monitoring and environmental protection. Its core purpose is to obtain representative water samples to detect physical, chemical, and biological indicators in the water body and assess the water quality status and pollution level. Since water bodies at different depths may exhibit different pollution characteristics (such as oxygen-rich surface layers and pollutant-rich bottom sediments), stratified sampling has become a key means of obtaining accurate data.

[0003] Existing water resource sampling methods generally include manual samplers and fixed multi-layer sampling devices. However, manual samplers rely on manual operation to lower the device to the target depth and then manually trigger the closure. Only a single layer of sample can be obtained at a time, and single-point sampling requires repeated operations, making it difficult to achieve simultaneous multi-layer sampling. Fixed multi-layer sampling devices fix multiple sampling bottles with brackets and can be preset to collect samples at different depths simultaneously. However, these devices are bulky and difficult to adapt to changes in water depth. They also cannot adjust the sampling depth, which has certain drawbacks. Therefore, it is necessary to develop a new water resource sampling device. Summary of the Invention

[0004] To address the aforementioned deficiencies and problems, this invention provides a water resources sampling device that uses a parallel sampling frame to ensure that multiple sampling bottle groups are always raised and lowered in parallel, and utilizes water flow resistance to trigger the automatic opening and closing of the sampling bottle groups, enabling automatic synchronous sampling of water bodies at different depths in a single operation.

[0005] The solution adopted by this invention to solve its technical problem is as follows: a water conservancy and water resources sampling device, including a hull, a sampling component, and a pulling component. The sampling component includes a parallel sampling frame and a sampling bottle group. A placement groove area is provided in the middle of the hull. The parallel sampling frame is installed in the placement groove area. Multiple sampling bottle groups are arranged in the parallel sampling frame, and each sampling bottle group is arranged at equal intervals along the longitudinal direction of the parallel sampling frame, and each sampling bottle group is at a different height. The pulling component is used to control the release or retraction of the parallel sampling frame from the placement groove area, and to adjust the parallel sampling frame to a vertical or horizontal state. The sampling bottle group includes a bottle holder, a sampling outer cylinder, and a sampling inner cylinder. The outer sampling cylinder is slidably fitted onto the inner sampling cylinder, and the rear end of the inner sampling cylinder is connected to the bottle holder via a connector. The inner sampling cylinder has an inlet and an outlet, while the outer sampling cylinder has an outlet that matches the outlet. A weak spring is installed between the outer and inner sampling cylinders, pushing the outer sampling cylinder to seal the inlet and outlet of the inner sampling cylinder. An annular thrust plate is installed at the front end of the outer sampling cylinder. When the horizontal sampling frame is released from the placement tank and the vessel moves, water resistance presses against the annular thrust plate of the outer sampling cylinder, causing it to move and open the inner sampling cylinder for sampling at different depths.

[0006] 1. The parallel sampling rack contains multiple sampling bottle groups, arranged equidistantly along the longitudinal direction at different heights. Each layer of sampling bottle groups can acquire water samples at the corresponding height, simultaneously collecting water samples from different depths. A single operation can acquire water samples from different depths, avoiding the problem of multiple lowering operations required by traditional single-point sampling, thus improving water sampling efficiency. Based on the parallelogram principle, the parallel sampling rack ensures that each sampling bottle group remains parallel during swinging, and multiple sampling bottle groups can be raised and lowered at equal intervals. Furthermore, the parallel sampling rack can be folded and stored in the placement slot area, and the pulling component can quickly control the parallel sampling rack to be lowered to a vertical position or retracted to a horizontal position, improving operational efficiency.

[0007] 2. The pulling component controls the deployment and retraction of the parallel sampling frame, enabling switching between vertical (sampling) and horizontal (storage) states. It can also precisely adjust the lowering depth of the parallel sampling frame to adapt to waters of different depths. Furthermore, the transition zone between the horizontal and vertical states of the parallel sampling frame can be adjusted arbitrarily to prevent the parallel sampling frame from touching the bottom, while ensuring effective sampling under different water depth conditions.

[0008] 3. The sampling bottle assembly can automatically open (when the ship is moving) and close (when the ship is stationary) based on the resistance of the water to the annular push plate. The opening and closing of the sampling bottle assembly relies solely on water resistance and a weak spring reset, eliminating the need for manual operation and reducing human error. Furthermore, the weak spring can push the outer sampling cylinder to reset, ensuring that the inlet and outlet are completely sealed when not sampling, preventing sample contamination or leakage. The inner sampling cylinder is connected to the bottle holder via a connector, allowing for quick disassembly and facilitating sample labeling and subsequent analysis. Attached Figure Description

[0009] Figure 1 This is one of the overall structural schematic diagrams of the present invention.

[0010] Figure 2 This is the second schematic diagram of the overall structure of the present invention.

[0011] Figure 3 This is a sectional view of the ship's interior.

[0012] Figure 4 This is a schematic diagram of the horizontal state structure of the sampling component.

[0013] Figure 5 This is a schematic diagram of the swing state structure of the sampling component.

[0014] Figure 6 This is a schematic diagram of the vertical state structure of the sampling component.

[0015] Figure 7 This is a schematic diagram showing the adjustment state of the parallel sampling frame.

[0016] Figure 8 This is a schematic diagram of the sampling bottle assembly.

[0017] Figure 9 This is an internal cross-sectional view of the sampling bottle assembly.

[0018] In the diagram: 1-hull, 11-placement trough area, 12-limiting stop, 2-parallel sampling frame, 21-front frame, 211-upper front shaft, 22-rear frame, 221-upper rear shaft, 23-side rod, 24-supporting cross plate, 25-horizontal shaft, 3-sampling bottle group, 31-bottle seat, 32-sampling outer cylinder, 321-annular thrust plate, 322-outer opening, 33-sampling inner cylinder, 331-inlet, 332-outlet, 333-retaining ring, 334-rear seat, 34-weak spring, 35-connector, 4-traction assembly, 41-winner, 42-guide wheel, 43-traction rope, 5-remote control unit, 6-drive unit, 61-motor, 62-propeller. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1: Existing water resource sampling generally includes manual samplers and fixed multi-layer sampling equipment. However, manual samplers rely on manual operation to lower the equipment to the target depth and then manually trigger the closure. Only a single layer of sample can be obtained at a time, and single-point sampling requires repeated operations, making it difficult to achieve synchronous multi-layer sampling. Fixed multi-layer sampling equipment uses a bracket to fix multiple sampling bottles and can preset different depths for synchronous sampling. However, the equipment is bulky and difficult to adapt to changes in water depth, and the sampling depth cannot be adjusted.

[0021] To address the aforementioned problems, this embodiment provides a water resources sampling device, including a hull 1, a sampling assembly, and a pulling assembly 4, such as... Figure 1-3 As shown, a placement trough area 11 is provided in the middle of the hull 1, which runs through the hull 1. The placement trough area 11 is used to place the sampling components. The sampling components include a parallel sampling frame 2 and a sampling bottle group 3. The parallel sampling frame 2 is provided with multiple sampling bottle groups 3. Each sampling bottle group 3 is arranged at equal intervals along the longitudinal direction of the parallel sampling frame 2, and each sampling bottle group 3 is at a different level. Each layer of sampling bottle group 3 can obtain water samples at its corresponding level. Multiple sampling bottle groups 3 can be arranged in each layer as needed. like Figure 4-6 As shown, the parallel sampling frame 2 includes a front frame 21, a rear frame 22, an upper front shaft 211, an upper rear shaft 221, a side rod 23, a support plate 24, and a horizontal shaft 25. The front frame 21 and the rear frame 22 are rectangular frames and are arranged in parallel front to back. The front shaft 211 and the upper rear shaft 221 are respectively fitted on the top of the front frame 21 and the rear frame 22. Considering the parallel folding state of the parallel sampling frame 2, the upper front shaft 211 and the upper rear shaft 221 are arranged in an alternating front-to-back and vertical arrangement to achieve a clearance fit, that is, the upper rear shaft 221 is lower than the upper front shaft 211, with a relative misalignment.

[0022] A bearing seat is installed in the placement slot area 11. The upper front shaft 211 and the upper rear shaft 221 are fixedly fitted in the bearing seat of the placement slot area 11. That is, the top of the parallel sampling frame 2 is installed in the placement slot area 11 through the upper front shaft 211 and the upper rear shaft 221, and the parallel sampling frame 2 can swing in the placement slot area 11.

[0023] A horizontal shaft 25 is fitted inside the front frame 21 and the rear frame 22 respectively. The horizontal shaft 25 in the front frame 21 and the horizontal shaft 25 in the rear frame 22 are also arranged in an alternating manner to achieve a clearance fit. A convex shaft corresponding to the horizontal shaft 25 is installed on the side of the front frame 21 and the rear frame 22. The two ends of the side rod 23 are respectively hinged to the convex shaft on the side of the front frame 21 and the side of the rear frame 22, or the two ends of the horizontal shaft 25 extend out of the side of the front frame 21 and the rear frame 22, and the two ends of the side rod 23 are respectively hinged to the horizontal shaft 25 on the side of the front frame 21 and the side of the rear frame 22.

[0024] Multiple support plates 24 are equidistantly arranged along the longitudinal direction inside the parallel sampling frame 2. The support plates 24 are installed inside the parallel sampling frame 2 via a horizontal axis 25. Each support plate 24 is at a different height, and adjacent support plates 24 are parallel to each other. The sampling bottle group 3 can be installed on the support plates 24. According to the parallelogram principle, when the parallel sampling frame 2 swings arbitrarily, each support plate 24 is in a parallel state, and thus each sampling bottle group 3 is also in a parallel state.

[0025] like Figure 1-3 As shown, the pulling assembly 4 is used to control the parallel sampling frame 2 to be released or retracted from the placement trough area 11, and to adjust the parallel sampling frame 2 to a vertical or horizontal state. The pulling assembly 4 includes a winch 41, a guide wheel 42 and a pulling rope 43. The winch 41 is installed on the hull 1, and the guide wheel 42 is located on the winch 41 to guide the pulling rope 43. The free end of the pulling rope 43 is connected to the bottom of the parallel sampling frame 2. The winch 41 can control the swing of the parallel sampling frame 2 through the pulling rope 43. When the winch 41 releases the pulling rope 43, it can release the parallel sampling frame 2 from the placement trough area 11, so that the parallel sampling frame 2 enters the water. The parallel sampling frame 2 automatically hangs down to a vertical state, and a limit stop 12 is installed in the placement trough area 11 to constrain and limit the parallel sampling frame 2 in the vertical state to prevent the parallel sampling frame 2 from swinging excessively. When the winch 41 retracts the pull rope 43, it can retract the parallel sampling frame 2 into the placement trough area 11 and make it horizontal, so that the parallel sampling frame 2 is detached from the water. The area between the horizontal and vertical transition zones of the parallel sampling frame 2 is called the transition zone. The position of the parallel sampling frame 2 can be adjusted according to different water depths. The parallel sampling frame 2 can be adjusted to any position in the transition zone to adapt to waters of different depths, enabling sampling of water bodies at different depths and preventing the parallel sampling frame 2 from touching the bottom.

[0026] like Figure 8-9 As shown, the sampling bottle assembly 3 includes a bottle holder 31, a sampling outer cylinder 32, and a sampling inner cylinder 33. The bottle holder 31 is an arc-shaped bottle assembly and is fixedly installed on the support horizontal plate 24. The sampling outer cylinder 32 is slidably fitted onto the sampling inner cylinder 33. A rear seat 334 is installed at the rear end of the sampling inner cylinder 33. The rear seat 334 is connected to the bottle holder 31 through a connector 35. The connector 35 is a bolt. By removing the bolt, the sampling inner cylinder 33 can be removed from the bottle holder 31.

[0027] The length of the sampling inner cylinder 33 is greater than that of the sampling outer cylinder 32, and the front end of the sampling outer cylinder 32 extends out of the bottle holder 31. The portion of the front end of the sampling inner cylinder 33 protruding from the sampling outer cylinder 32 is small. At the same time, the sampling outer cylinder 32, which is fitted onto the sampling inner cylinder 33, is supported by the bottle holder 31.

[0028] The sampling inner cylinder 33 is provided with an inlet 331 and an outlet 332, which are respectively located at the bottom front side and the top rear side of the sampling inner cylinder 33. The sampling outer cylinder 32 is provided with an outer opening 322 that matches the outlet 332, which is located at the top rear side of the outer shell. A weak spring 34 is provided between the sampling outer cylinder 32 and the sampling inner cylinder 33. The two ends of the weak spring 34 are connected to the rear seat 334 and the rear end of the sampling outer cylinder 32, respectively. In the initial state, the weak spring 34 can push the sampling outer cylinder 32, so that the sampling outer cylinder 32 seals and blocks the water inlet 331 and water outlet 332 of the sampling inner cylinder 33. An annular push plate 321 is installed at the front end of the sampling outer cylinder 32, and a retaining ring 333 is fixed at the front end of the sampling inner cylinder 33. The retaining ring 333 can prevent the sampling outer cylinder 32 from detaching from the sampling inner cylinder 33. When the annular push plate 321 is subjected to water resistance, due to the large force-bearing area of ​​the annular push plate 321, the water resistance acts on the annular push plate 321 of the sampling outer cylinder 32, causing the sampling outer cylinder 32 to be pressed backward and overcome the elastic force of the weak spring 34. At the same time, the front end of the bottle holder 31 restricts the excessive movement of the annular push plate 321. At this time, the water inlet 331 of the sampling inner cylinder 33 is opened, and the outer opening 322 of the sampling outer cylinder 32 is connected to the water outlet 332 of the sampling inner cylinder 33, thereby allowing water to enter the sampling inner cylinder 33.

[0029] In other words, when the horizontal sampling frame is released from the placement tank area 11 and the hull 1 moves, the water resistance will press the annular thrust plate 321 of the sampling outer cylinder 32, causing the sampling outer cylinder 32 to move and open the sampling inner cylinder 33, so as to achieve water sampling at different depths.

[0030] like Figure 1-3 As shown, it also includes a remote control unit 5 and a drive unit 6 for controlling the movement of the hull 1. The remote control unit 5 is used to remotely control the movement of the hull 1. The remote control unit 5 includes a wireless transceiver module and a controller (the wireless transceiver module and controller adopt existing technology and will not be described in detail here), and a battery is provided on the hull 1. The drive unit 6 is used to drive the hull 1. The drive unit 6 includes a motor 61 and a propeller 62 (the motor 61 and propeller 62 also adopt existing technology and will not be described in detail here). In the initial state, the pulling component 4 controls the parallel sampling frame 2, so that the parallel sampling frame 2 is in a retracted horizontal state within the placement tank area 11. When the hull 1 travels to the designated sampling water area, the pulling component 4 controls the parallel sampling frame 2, so that the parallel sampling frame 2 is released from the placement tank area 11 and enters the water, and the parallel sampling frame 2 hangs down in a vertical state. At this time, the hull 1 travels a short distance to complete the water sampling, which has the feature of automatically sampling water through the movement of the hull 1.

[0031] Water sampling will only be performed automatically when the parallel sampling rack 2 is released from the placement tank area 11 and the hull 1 is moving, in order to avoid invalid sampling or sample contamination. When the parallel sampling rack 2 is released from the placement tank area 11 and the hull 1 is not moving, the sampling bottle group 3 is in a closed state and will not enter the water. When the parallel sampling frame 2 is released from the placement tank area 11 and the hull 1 is moving, the water generates resistance to the annular thrust plate 321. The annular thrust plate 321 has a large force-bearing area, so the resistance it experiences is relatively large. Under these circumstances, the water resistance pushes the outer sampling cylinder 32 backward. At the same time, the front end of the bottle holder 31 restricts the excessive movement of the annular thrust plate 321. At this time, the inlet 331 of the inner sampling cylinder 33 is opened, and the outer opening 322 of the outer sampling cylinder 32 is aligned with the outlet 332 of the inner sampling cylinder 33, allowing water to enter the inner sampling cylinder 33.

[0032] In other words, when the hull 1 is moving, the water resistance causes the outer sampling cylinder 32 to move backward, exposing the inlet 331 of the inner sampling cylinder 33. The outlet 332 of the inner sampling cylinder 33 is aligned with the outer opening 322 of the outer sampling cylinder 32, thereby enabling water sampling at the corresponding depth and achieving water sampling at different depths.

[0033] The pulling component 4 controls the lowering degree of the parallel sampling frame 2, which determines the depth of the sampling layer. After the water sampling is completed, the hull 1 stops moving, the annular thrust plate 321 loses water resistance, and the outer sampling cylinder 32 automatically resets under the action of the weak spring 34, resealing the inner sampling cylinder 33. Then the pulling component 4 retracts the parallel sampling frame 2 into the placement slot area 11 in a horizontal state. After the hull 1 docks, the inner sampling cylinder 33 can be removed from the bottle holder 31 by disassembling the connector 35. The inner sampling cylinders 33 at different heights are labeled and stored.

[0034] This scheme has the following characteristics: the hull 1 can be remotely driven to the designated sampling area; the pulling component 4 deploys the parallel sampling frame 2 to a suitable swing angle, and the multi-layer sampling bottle group 3 inside the parallel sampling frame 2 is raised and lowered at equal intervals; when the hull 1 starts to move, the water resistance acts on the sampling outer cylinder 32, thereby automatically opening the sampling inner cylinder 33 to sample water at different depths; when the hull 1 stops moving, the sampling outer cylinder 32 automatically resets to seal the sampling inner cylinder 33, and at the same time the pulling component 4 retracts the parallel sampling frame 2 to complete the water sampling; the hull 1 returns to the shore, and the operator collects the sampling inner cylinder 33.

[0035] The parallel sampling frame 2 can acquire water samples at different depths at once, reducing repetitive operations and improving efficiency. The inner sampling cylinder 33 is completely sealed by the outer sampling cylinder 32 when not sampling, preventing sample spillage or external contaminants from entering during transportation. The inner sampling cylinder 33 is connected to the bottle holder 31 by bolts, which can be quickly disassembled and stored separately to avoid cross-contamination, facilitate laboratory analysis, and achieve environmentally friendly sampling. At the same time, this equipment can be adapted to different water depths and water conditions. By adjusting the lowering depth of the parallel sampling frame 2 and the travel distance of the hull 1, flexible sampling can be achieved.

[0036] Example 2 describes a water resources sampling device that differs from that in Example 1.

[0037] In this embodiment, an openable and closable protective cover is also installed on the top of the placement trough area to protect the placement trough area. When the protective cover is closed, the top of the placement trough area is in a closed state. When the protective cover is opened, the top of the placement trough area is in an open state, which allows the sampling inner cylinder to be removed from the parallel sampling frame.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water resources sampling device comprising a hull (1), characterized in that, It also includes a sampling component and a pulling component (4). The sampling component includes a parallel sampling frame (2) and a sampling bottle group (3). A placement slot area (11) is provided in the middle of the hull (1). The parallel sampling frame (2) is installed in the placement slot area (11). Multiple sampling bottle groups (3) are provided in the parallel sampling frame (2). Each sampling bottle group (3) is arranged equidistantly along the longitudinal direction of the parallel sampling frame (2), and each sampling bottle group (3) is at a different level. The pulling component (4) is used to control the parallel sampling frame (2) to be released or retracted from the placement slot area (11) and to adjust the parallel sampling frame (2) to a vertical or horizontal state. The sampling bottle group (3) includes a bottle holder (31), a sampling outer cylinder (32), and a sampling inner cylinder (33). The sampling outer cylinder (32) is slidably fitted onto the sampling inner cylinder (33), and the rear end of the sampling inner cylinder (33) is connected by a connector ( 35) Connected to the bottle holder (31), the sampling inner cylinder (33) is provided with an inlet (331) and an outlet (332) respectively, and the sampling outer cylinder (32) is provided with an outer opening (322) that matches the outlet (332); a weak spring (34) is provided between the sampling outer cylinder (32) and the sampling inner cylinder (33), and the sampling outer cylinder (32) is pushed by the weak spring (34) to seal and block the sampling. The inner cylinder (33) has an inlet (331) and an outlet (332), and an annular thrust plate (321) is installed at the front end of the sampling outer cylinder (32). When the horizontal sampling frame is released from the placement trough area (11) and the hull (1) moves, the water resistance presses the annular thrust plate (321) of the sampling outer cylinder (32), causing the sampling outer cylinder (32) to move and open the sampling inner cylinder (33) to sample water at different depths.

2. A water resources sampling device according to claim 1, wherein, The parallel sampling frame (2) includes a front frame (21), a rear frame (22), an upper front axle (211), an upper rear axle (221), a side rod (23), a support cross plate (24), and a cross shaft (25). The front frame (21) and the rear frame (22) are arranged parallel to each other. The upper front axle (211) and the upper rear axle (221) are respectively fitted onto the top of the front frame (21) and the rear frame (22), and the upper front axle (211) and the upper rear axle (221) are arranged vertically. The side rods (23) are staggered and hinged to the sides of the front frame (21) and the rear frame (22) respectively. Multiple support plates (24) are provided at equal intervals along the longitudinal direction in the parallel sampling frame (2). The support plates (24) are installed in the parallel sampling frame (2) through the horizontal axis (25). Each support plate (24) is at a different level and adjacent support plates (24) are parallel to each other. The sampling bottle group (3) is installed on the support plate (24).

3. A water resources sampling device according to claim 1, wherein, The front end of the sampling inner cylinder (33) is fixed with a retaining ring (333) to prevent the sampling outer cylinder (32) from falling off. The rear end of the sampling inner cylinder (33) is equipped with a rear seat (334). The rear seat (334) is connected to the bottle holder (31) through a connector (35). The two ends of the weak spring (34) are respectively connected to the rear seat (334) and the rear end of the sampling outer cylinder (32).

4. The water resources sampling device of claim 1, wherein, The sampling inner cylinder (33) is longer than the bottle holder (31), and the sampling outer cylinder (32) is supported by the bottle holder (31). The inlet (331) and outlet (332) are respectively opened at the bottom front side and the top rear side of the sampling inner cylinder (33), and the outer opening (322) is opened at the top rear side of the outer shell.

5. The water resources sampling device of claim 1, wherein, The pulling assembly (4) includes a winch (41), a guide wheel (42) and a pulling rope (43). The winch (41) is installed on the hull (1). The winch (41) controls the parallel sampling frame (2) through the pulling rope (43). It can release the parallel sampling frame (2) from the placement slot area (11) into a vertical state, or retract the parallel sampling frame (2) into the placement slot area (11) into a horizontal state.

6. The water resources sampling device of claim 1, wherein, It also includes a remote control unit (5) and a drive unit (6) for controlling the movement of the hull (1).

Images