Ecological water sampling device
By controlling the lifting and lowering of the sampling component through support and traction components, combined with flexible pipes and filters, the problem of existing equipment being unable to collect ecological water samples from the bottom of lakes and reservoirs has been solved, achieving accurate water layer sampling and avoiding sediment pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-04-07
AI Technical Summary
Existing water collection equipment is difficult to effectively collect ecological water samples from the bottom of lakes and reservoirs, and is prone to disturbing the sediment at the bottom, leading to sampling failure, thus having low practicality.
The sampling component is raised and lowered by a support and traction assembly. Combined with flexible pipes and multi-layer filters, the support rods and support plates ensure that the sampling component is kept at a distance from the bottom of the water to prevent the silt from being stirred up. The filter screen filters out impurities, enabling accurate sampling of different water layers.
It enables precise sampling of the bottom water layers of lakes and rivers, avoiding silt pollution and improving sampling efficiency and accuracy.
Smart Images
Figure CN224095446U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water sampling technology, specifically to an ecological water sampling device. Background Technology
[0002] A water sampler is a device used to collect water samples. It is commonly used in environmental monitoring, water quality testing, hydrological research, and ecological research. In particular, the ecological water in lakes, rivers, and reservoirs requires sampling water from different water layers, such as shallow and deep water areas.
[0003] Currently, when sampling lakes and rivers, the usual method involves taking a boat into the center of the water and then manually sampling the water with a handheld sampling bucket. This is not only inefficient, but also results in the mixing of ecological water samples from different water layers when the bucket is lifted out, failing to meet the standard for accurate sampling. Some automated water-lifting devices are used for sampling, but while these devices can meet the needs of sampling ecological water samples from different water layers, when sampling water near the bottom sediment layer, the height of the water-lifting sampling device must be carefully lowered to prevent it from coming into too much contact with the sediment layer. Otherwise, these ordinary water-lifting devices can easily stir up sediment and other impurities and draw them up. In this case, the ecological water sample can only be left to stand for a period of time or discarded and resampled. Since the sampling location is carefully selected, resampling requires waiting for the bottom of the water to calm down, which undoubtedly wastes manpower and time.
[0004] In summary, existing general water sampling equipment has the problem of being unable to effectively sample ecological water samples close to the bottom of lakes and reservoirs, easily disturbing the sediment at the bottom of the water, leading to sampling failure, and having low practicality. Summary of the Invention
[0005] To address the problems of existing general water sampling equipment being unable to effectively sample ecological water specimens from the bottom of lakes and reservoirs, easily disturbing bottom sediment during sampling, leading to sampling failure, and having low overall practicality, this utility model provides an ecological water sampling device.
[0006] According to an embodiment of this utility model, an ecological water sampling device includes a support assembly, which includes a base plate and a column vertically disposed on one side of the base plate. A top plate is horizontally fixed to the top of the column, and the projection of the top plate extends beyond the base plate. The device also includes a sampling component suspended on the lower surface of the top plate away from the column, and a traction component disposed on the top plate. The traction component includes a flexible pipe extending to and connected to the sampling component. The traction component controls the lifting and lowering of the sampling component by pulling and stretching the flexible pipe. The sampling component includes a water pump and a first... The system includes a filter layer and a second filter layer that wraps around the first filter layer. One end of the flexible pipe passes through the second filter layer and connects to the water pump outlet. The first filter layer includes a cylindrical outer shell that wraps around the water pump. The surface of the outer shell is also provided with several water inlets. The water inlets are also covered with a first filter screen. The second filter layer includes a spherical second filter screen. The sampling assembly also includes several support rods that connect the outer shell and penetrate the second filter screen. The support rods extend to the outside of the second filter screen. The ends of the support rods located outside the second filter screen are also fixed with support plates. The support rods are evenly distributed on the outer shell.
[0007] Furthermore, the traction assembly includes a cylindrical fixing seat fixed to the upper surface of the top plate. A hollow drum is coaxially and vertically rotatable inside the fixing seat. A gap is provided between the outer wall of the drum and the inner wall of the fixing seat. A motor is also coaxially mounted in the area above the top of the fixing seat. The output end of the motor is fixed to the drum and drives it to rotate. The flexible pipe is spirally wrapped around the outer wall of the drum. A first opening is provided through one side of the bottom of the outer wall of the fixing seat. A second opening is provided through the side wall of the drum. One end of the flexible pipe extends out of the fixing seat through the first opening, and the other end extends into the drum through the second opening.
[0008] Furthermore, a through hole is provided at the center of the bottom of the drum, and through holes are also provided at corresponding positions along the vertical direction on the fixing seat and the top plate. A rotary joint is also provided at the through holes of the drum and the fixing seat. The rotary joint has a top and a bottom that can rotate relative to each other. The top of the rotary joint is fixedly installed at the bottom through hole of the drum and rotates with the drum, while the bottom is installed at the through hole of the fixing seat and remains stationary. One end of the flexible pipe that extends into the drum through the second opening is fixedly connected to the top of the rotary joint. A rigid pipe is also fixedly connected to the bottom of the rotary joint. The rigid pipe extends through the through hole located on the top plate and extends to the outside.
[0009] Furthermore, the upper surface of the top plate is also provided with a first limiting seat and a second limiting seat for limiting the flexible pipe. The first limiting seat includes two first limiting wheels disposed in front of the first opening. The bottom of the first limiting wheels is rotatably connected to the upper surface of the top plate. The two first limiting wheels are vertically opposite each other and there is a space between them for the flexible pipe to pass through. The second limiting seat is disposed at the edge of the top plate in the area above the sampling component. The second limiting seat includes a base fixed to the upper surface of the top plate and a second limiting wheel horizontally rotatably connected to the base. The flexible pipe passes through the top of the second limiting wheel.
[0010] Furthermore, several fixing brackets are evenly distributed in a centripetal pattern on the top of the fixing base, and one end of each fixing bracket facing the center of the fixing base is fixedly connected to the outer wall of the motor.
[0011] Furthermore, the outer wall of the flexible pipe is also wrapped with a woven mesh.
[0012] Furthermore, the support rod includes a support cylinder, the bottom of which is fixed to the outer wall of the housing, and the middle part of which passes through and is fixed to the second filter screen. The support rod also includes a screw rod with one end that can be inserted into the support cylinder and threadedly connected to the support cylinder, and the other end of the screw rod is fixed to a support plate.
[0013] Furthermore, the support cylinder and the second filter screen are made of metal, and the support cylinder is welded to the second filter screen at the middle position.
[0014] The technical principle of this utility model is as follows: By setting a support component to support the traction component and the sampling component, manual sampling is replaced. The top plate extends beyond the bottom plate area, and the device is set at the edge of the hull. The sampling device can extend above the lake or river through the top plate. Then, a traction component is set on the top plate to control the raising and lowering of the sampling component. The sampling component is driven to descend into the water body through a flexible pipe connected to it. Furthermore, by wrapping the water pump with first and second filter layers, impurities or small organisms in the lake or river can be effectively prevented from entering the sampling component. Multiple support rods extending from the second filter screen are set on the first and second filter layers, and support plates are set on the support rods. This ensures that even when sampling the bottom water of the lake or river, there is still a certain distance between the sampling component and the bottom of the lake or river due to the support rods and support plates. The water pump can then smoothly draw water from the bottom without stirring it. The sampling component can be submerged at different depths in lakes and rivers to sample different water layers, as the lifting height of the traction component is controllable based on the length of the lowered water pipe. For example, when sampling the middle layer of water, the water sampled first can be discarded when the pump is started, since the sampling component enters the middle layer from the surface and some water has already entered the filter screen. The water sampled later can then be used for sampling. When sampling the bottom layer of lakes and rivers, the above steps are repeated to accurately obtain the bottom water that has been filtered to remove various impurities. Furthermore, because the bottom of these water bodies is uneven, the sampling component may tip over if it touches the bottom. In this case, the support rods and plates in other positions can keep the pump "suspended" relative to the bottom, avoiding direct sampling of the bottom sediment and preventing the sample from being contaminated by sediment. Attached Figure Description
[0015] Figure 1 This is a side view of an embodiment of the present utility model.
[0016] Figure 2 This is a top view of the support component and traction component of this utility model.
[0017] Figure 3 For practical purposes Figure 2 Enlarged view of point A.
[0018] Figure 4 This is a partial structural diagram of the sampling component.
[0019] Figure 5 This is a schematic diagram of part of the sampling component's structure (shell, first filter).
[0020] Figure 6 This is a partial structural diagram of the traction component.
[0021] In the above attached figures:
[0022] 1. Support components; 11. Base plate; 12. Columns; 13. Top plate; 14. Through holes;
[0023] 2. Traction assembly; 21. Fixing base; 211. First opening; 22. Fixing frame; 23. Motor; 24. Drum; 241. Second opening; 25. Flexible pipe; 251. Braided mesh; 252. Rigid pipe; 26. Rotary joint;
[0024] 3. Sampling assembly; 31. Water pump; 32. Housing; 321. Inlet; 33. First filter screen; 34. Second filter screen; 35. Support rod; 351. Support cylinder; 352. Screw; 353. Support plate;
[0025] 4. First limiting seat; 41. First limiting wheel;
[0026] 5. Second limit seat; 51. Second limit wheel. Detailed Implementation
[0027] The following is in conjunction with the appendix Figure 1 To be continued Figure 6 The embodiments further illustrate the technical solutions of this utility model.
[0028] According to embodiments of the present invention, such as Figures 1 to 6 As shown, an ecological water sampling device includes a support assembly 1, which includes a base plate 11 and a column 12 vertically disposed on one side of the base plate 11. A top plate 13 is horizontally fixed to the top of the column 12, and the projection of the top plate 13 extends to the outside of the base plate 11. It also includes a sampling component 3 suspended on the lower surface of the top plate 13 away from the column 12, and a traction assembly 2 disposed on the top plate 13. The traction assembly 2 includes a flexible pipe 25 extending to the sampling component 3. The traction assembly 2 controls the lifting and lowering of the sampling component 3 by pulling and stretching the flexible pipe 25. The sampling component 3 includes a water pump 31 and a first filter surrounding the water pump 31. The sampling assembly 3 includes a first filter layer and a second filter layer that wraps around the first filter layer. The water pump 31 is connected to one end of the flexible pipe 25. The first filter layer includes a cylindrical outer shell 32 that wraps around the water pump 31. The surface of the outer shell 32 is also provided with a plurality of water inlets 321. The water inlets 321 are also covered with a first filter screen 33. The second filter layer includes a spherical second filter screen 34. The sampling assembly 3 also includes a plurality of support rods 35 that connect the outer shell 32 and penetrate the second filter screen 34. The support rods 35 extend to the outside of the second filter screen 34. The end of the support rod 35 away from the second filter screen 34 is also fixed with a support plate 353. The support rods 35 are evenly distributed on the outer shell 32.
[0029] The above-described mechanism utilizes a support component 1 to support the traction component 2 and the sampling component 3, replacing manual sampling. The top plate 13 extends beyond the area of the bottom plate 11, and the bottom plate 11 is positioned at the edge of the hull. The sampling device can extend above the lake or river via the top plate 13. The traction component 2 is then installed on the top plate 13 to control the raising and lowering of the sampling component 3. A flexible pipe 25 connecting to the sampling component 3 drives it to descend into the water. Furthermore, by wrapping the water pump 31 with first and second filter layers, impurities or small organisms from the lake or river can be effectively prevented from entering the sampling component 3. In addition, the first and second filter layers... Multiple support rods 35 extending from the second filter screen 34 are provided on the filter layer, and support plates 353 are provided on the support rods 35. This ensures that even when sampling the bottom water of the lake or river, there is still a distance between the sampling component 3 and the bottom of the lake or river due to the action of the support rods 35 and the support plates 353. The water pump 31 can then smoothly draw water from the bottom without disturbing the mud and sand. Furthermore, since the lifting height of the traction component 2 is controllable and predictable based on the length of the lowered water pipe, the sampling component 3 can be submerged to different heights in the lake or river when drawing water, thus enabling sampling of different water layers.
[0030] When sampling water from the middle layer, the water pump 31 can be discarded after it is started. This is because the sampling component 3 enters the middle layer from the surface, and some water has already entered the filter screen. Therefore, the water taken out first is discarded, and then the water taken out later is sampled. When sampling the bottom of lakes and rivers, the above steps are repeated to accurately obtain the bottom water that has been blocked by the filter screen. In addition, because the bottom of these water bodies is uneven, the sampling component 3 may tip over if it touches the bottom. At this time, the support rods 35 and support plates 353 in other positions can keep the water pump 31 in a "suspended state" relative to the bottom, avoiding direct extraction of bottom sediment and preventing the sample from being contaminated by sediment.
[0031] Furthermore, such as Figure 1 and Figure 2 as well as Figure 6As shown, the traction assembly 2 includes a cylindrical fixing seat 21 fixed to the upper surface of the top plate 13. A drum 24 is coaxially and vertically rotatably mounted inside the fixing seat 21. A gap is provided between the outer wall of the drum 24 and the inner wall of the fixing seat 21 to accommodate the flexible pipe 25 wound around it. A motor 23 is also fixedly mounted on the top of the fixing seat 21. The output end of the motor 23 is coaxially fixed to the rotating shaft of the drum and drives the drum 24 to rotate. Several layers of flexible pipe 25 can be wrapped around the drum 24. Driven by the motor 23, the drum 24 is rotated, realizing the unwinding and rewinding of the flexible pipe 25 and driving the sampling assembly 3 to rise and fall. A first opening 211 is also provided through one side of the bottom of the outer wall of the fixing seat 21. A second opening 241 is also provided through the side wall of the drum 24. One end of the flexible pipe 25 extends out of the fixing seat through the first opening 211, and the other end extends into the drum 24 through the second opening 241.
[0032] Furthermore, such as 1 and Figure 2 as well as Figure 6 As shown, the bottom axis of the drum 24 is provided with a through hole 14, and the corresponding positions of the fixing seat 21 and the top plate 13 are also provided with through holes 14. The drum 24 and the fixing seat 21 are also provided with a rotary joint 26 at the through hole 14. The rotary joint 26 has a top and a bottom that can rotate relative to each other. The top of the rotary joint 26 is fixedly installed at the bottom through hole of the drum 24 and rotates with the drum 24. The bottom is installed at the through hole of the fixing seat 21 and remains stationary. The other end of the flexible pipe 25 that extends into the drum 24 through the second opening 241 is fixedly connected to the top of the rotary joint 26. The bottom of the rotary joint 26 is also fixedly connected to a rigid pipe 252. The rigid pipe 252 extends through the through hole 14 located in the top plate 13 and extends to the outside to extend the outlet of the flexible pipe 25.
[0033] Through the aforementioned mechanism, when the drum 24 rotates inside the fixed base 21, it can smoothly retract one end of the flexible pipe 25 connected to the sampling component 3, while the other end enters the drum 24 through the second opening 241. The rotary joint 26 resolves the issues of interference and water discharge. When the drum 24 rotates, the top of the rotary joint 26 rotates synchronously, while one end of the flexible pipe 25 inside the drum 24 remains relatively stationary. When the drum 24 stops rotating, the sampling component 3 begins to draw water, which flows along the pipe into the rotary joint 26 and out through the rigid pipe 252. To maintain stability, a bearing can be installed between the outer bottom of the drum 24 and the inner bottom of the fixed base 21, with the rotary joint 26 positioned precisely in the central hole of the bearing.
[0034] Furthermore, such as Figure 1 , Figure 2 and Figure 4As shown, the upper surface of the top plate 13 is also provided with a first limiting seat 4 and a second limiting seat 5 for limiting the flexible pipe 25. The first limiting seat 4 includes two first limiting wheels 41 disposed in front of the first opening 211. The first limiting wheels 41 are rotatably connected to the upper surface of the top plate 13. The first limiting wheels 41 are vertically opposite each other and there is a space between them for the flexible pipe 25 to pass through and limit the flexible pipe 25. The second limiting seat 5 is located at the edge of the top plate 13 in the area above the sampling component 3. The second limiting seat 5 includes a base fixed to the upper surface of the top plate 13 and a second limiting wheel 51 horizontally rotatably connected to the base. The flexible pipe 25 extends from the first limiting seat 4 to pass through the top of the second limiting wheel 51 and connect to the top of the sampling component 3. The sampling component 3 is suspended on the lower surface of the top 13 by the flexible pipe 25.
[0035] Furthermore, such as Figure 1 and Figure 2 As shown, several fixing frames 22 are evenly distributed in a centripetal pattern on the top of the fixing base 21. One end of the fixing frame 22 facing the center of the fixing base 21 is fixedly connected to the outer wall of the motor 23. Through the above mechanism, the motor 23 remains stable and stationary because it is fixed to the fixing drum. The other end of the drum 24 is rotatably connected to the bottom of the fixing base 21 through a bearing, and can rotate relatively stably.
[0036] Furthermore, such as Figure 1 and Figure 2 As shown, the outer wall of the flexible pipe 25 is also wrapped with a braided mesh 251. The flexible pipe 25 can be selected with a relatively thick inner wall to prevent the water from being unable to flow out from the port of the flexible pipe 25 at the second opening 241 when the debris is wrapped around the drum 24. The braided mesh 251 can be wrapped around the flexible pipe 25 to increase the pipe's resistance to torsion and the strength of the sampling component 3 under its own weight. An electric wire is laid between the braided mesh 251 and the outer wall of the pipe to connect the water pump 31.
[0037] Furthermore, such as Figure 4 and Figure 5As shown, the support rod 35 includes a support cylinder 351. The bottom of the support cylinder 351 is fixed to the outer wall of the outer shell 32, and the middle part passes through the second filter screen 34 and is fixed to the second filter screen 34. The support rod 35 also includes a screw 352, one end of which can be inserted into the support cylinder 35 and threadedly connected to the support cylinder 35. The other end of the screw 352 is fixed to the support plate 353. Through the above structure, the screw 352 and the support plate 353 can be detachably replaced, so that the relative distance between the water pump 31 and the bottom of the lake or river can be adjusted after it touches the bottom. For example, in lakes or rivers with more and softer silt, a longer screw 352 can be replaced and connected to the support cylinder 351 to prevent the second filter screen 34 from directly contacting the silt at the bottom of the lake or river after the support plate 353 sinks into the silt.
[0038] Furthermore, the support cylinder 351 and the second filter screen 34 are made of metal, and the support cylinder 351 is welded to the second filter screen 34 at the middle position.
[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An ecological water sampling device, characterized in that: The system includes a support assembly comprising a base plate and a vertically mounted column on one side of the base plate. A top plate is horizontally fixed to the top of the column, and the projection of the top plate extends beyond the base plate. It also includes a sampling assembly suspended on the lower surface of the top plate away from the column and a traction assembly mounted on the top plate. The traction assembly includes a flexible pipe extending to and connected to the sampling assembly. The traction assembly controls the lifting and lowering of the sampling assembly by pulling and stretching the flexible pipe. The sampling assembly includes a water pump, a first filter layer enclosing the water pump, and a second filter layer enclosing the first filter layer. One end of the flexible pipe passes through the second filter layer and connects to the water pump outlet. The first filter layer includes a cylindrical outer shell enclosing the water pump. The surface of the outer shell is also provided with several inlets, and the inlets are covered with a first filter screen. The second filter layer includes a spherical second filter screen. The sampling assembly also includes several support rods connecting the outer shell and penetrating and connecting the second filter screen. The support rods extend beyond the second filter screen, and the ends of the support rods outside the second filter screen are fixed with support plates. The support rods are evenly distributed on the outer shell.
2. The ecological water sampling device as described in claim 1, characterized in that: The traction assembly includes a cylindrical fixing seat fixed to the upper surface of the top plate. A hollow drum is coaxially and vertically rotatable inside the fixing seat. A gap is provided between the outer wall of the drum and the inner wall of the fixing seat. A motor is also coaxially mounted in the area above the top of the fixing seat. The output end of the motor is fixed to the drum and drives it to rotate. A flexible pipe is spirally wrapped around the outer wall of the drum. A first opening is provided through one side of the bottom of the outer wall of the fixing seat. A second opening is provided through the side wall of the drum. One end of the flexible pipe extends out of the fixing seat through the first opening, and the other end extends into the drum through the second opening.
3. The ecological water sampling device as described in claim 2, characterized in that: A through hole is provided at the center of the bottom of the drum. Through holes are also provided at corresponding positions along the vertical direction on the fixing seat and the top plate. A rotary joint is also provided at the through holes of the drum and the fixing seat. The rotary joint has a top and a bottom that can rotate relative to each other. The top of the rotary joint is fixedly installed at the bottom through hole of the drum and rotates with the drum. The bottom is installed at the through hole of the fixing seat and remains stationary. One end of the flexible pipe that extends into the drum through the second opening is fixedly connected to the top of the rotary joint. A rigid pipe is also fixedly connected to the bottom of the rotary joint. The rigid pipe extends through the through hole located on the top plate and extends to the outside.
4. The ecological water sampling device as described in claim 2, characterized in that: The top surface of the top plate is also provided with a first limiting seat and a second limiting seat for limiting the flexible pipe. The first limiting seat includes two first limiting wheels disposed in front of the first opening. The bottom of the first limiting wheels is rotatably connected to the top surface of the top plate. The two first limiting wheels are vertically opposite each other and there is a space between them for the flexible pipe to pass through. The second limiting seat is disposed at the edge of the top plate in the area above the sampling component. The second limiting seat includes a base fixed to the top surface of the top plate and a second limiting wheel horizontally rotatably connected to the base. The flexible pipe passes through the top of the second limiting wheel.
5. The ecological water sampling device as described in claim 2, characterized in that: Several fixing brackets are evenly distributed in a centripetal pattern on the top of the fixing base, and one end of each fixing bracket facing the center of the fixing base is fixedly connected to the outer wall of the motor.
6. The ecological water sampling device as described in claim 1, characterized in that: The outer wall of the flexible pipe is also wrapped with a woven mesh.
7. The ecological water sampling device as described in claim 1, characterized in that: The support rod includes a support cylinder, the bottom of which is fixed to the outer wall of the housing, and the middle part of which passes through and is fixed to the second filter screen. The support rod also includes a screw rod with one end that can be inserted into the support cylinder and threadedly connected to the support cylinder, and the other end of the screw rod is fixed to a support plate.
8. The ecological water sampling device as described in claim 7, characterized in that: The support cylinder and the second filter screen are made of metal, and the support cylinder is welded to the second filter screen at the middle position.