River water sampling equipment for water conservancy and hydropower engineering

Abstract

The utility model discloses river water sampling equipment for water conservancy and hydropower engineering, which relates to the technical field of water conservancy and hydropower and comprises a support frame, an electric push rod is mounted at the top of the support frame, an output end of the electric push rod is connected with a mounting frame, and one side of the mounting frame is rotatably connected with a wire spool. The river water sampling equipment for the water conservancy and hydropower engineering has the beneficial effects that through the rotary pressing plate on the fixed rod, under the action of the screw rod, the pressing plate can be moved to trigger rods of different sampling barrels, and the trigger rods are extruded, so that pistons at the bottoms of the trigger rods are displaced, a liquid inlet is opened, and river water enters the sampling barrels along with the trigger rods; the river water sampling device has the advantages that river water with different depths can be sampled by a plurality of sampling barrels only through one group of pressing structures, the cost can be reduced, a piston can be automatically reset under the action of a spring to block a liquid inlet, and meanwhile, a balancing weight is placed on a supporting plate, so that the weight of a fixing rod is increased, and the fixing rod is not easily influenced by buoyancy.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy and hydropower technology, specifically to a river water sampling device for water conservancy and hydropower projects. Background Technology

[0002] In water conservancy and hydropower projects, regular sampling and testing can provide a comprehensive understanding of the water quality of drinking water sources, promptly identify water quality problems, ensure water supply safety, and help monitor water pollution levels and understand the types and concentrations of pollutants.

[0003] Application No. 202123052909.6 discloses a water source sampling device for water conservancy and hydropower projects. By setting up a multi-layer water sampling device, water sources at different depths can be sampled, improving the efficiency of water sampling. It can achieve the purpose of sampling water sources at different depths with a single drop. The rubber sealing ring improves the sealing performance of the water sampling tank, making the water sampling effect better.

[0004] The above application requires the use of the same number of electric push rods as the water tank for sampling. When the number of water samples is large, the cost is high, and the fixed rods and water tanks are easy to detach under the action of water buoyancy, which is not convenient for sampling deep water sources. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a river water sampling device for water conservancy and hydropower projects, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A river water sampling device for water conservancy and hydropower projects, comprising a support frame, an electric push rod mounted on the top of the support frame, an output end of the electric push rod connected to a mounting frame, a winding reel rotatably connected to one side of the mounting frame, a steel wire rope wound around the outer side of the winding reel's shaft, one end of the steel wire rope connected to a fixing rod, multiple sampling cylinders mounted on one side of the fixing rod, each sampling cylinder having a liquid storage chamber inside, and a liquid inlet located at the top of each liquid storage chamber inside each sampling cylinder, a piston inserted into the liquid inlet, the piston having a T-shaped structure, the piston fitting snugly against the liquid inlet, a trigger rod connected to the top of the piston, a telescopic spring installed inside each sampling cylinder, one end of the telescopic spring connected to the piston, and a convex sliding spring inside the fixing rod. The convex sliding groove contains a convex slider inserted inside. A waterproof box is connected to one side of the convex slider. A pressure plate is rotatably connected to the top of the waterproof box. A lead screw is rotatably connected inside the convex sliding groove, passing through the convex slider and threadedly connected to it. A first self-locking motor is installed inside the fixing rod, and its output end is connected to the lead screw. A second self-locking motor is installed inside the waterproof box, and its output end is connected to the pressure plate. A support plate is installed at the bottom of the fixing rod. Multiple counterweights are sleeved on the outside of the fixing rod and on top of the support plate. Each counterweight has a groove inside it, which fits into the fixing rod. A positioning hole is provided inside each counterweight and on one side of the groove. A threaded rod is threadedly connected to the top of the support plate, and the threaded rod passes through the multiple positioning holes.

[0007] Preferably, a third self-locking motor is installed on one side of the mounting bracket and at the top of the electric push rod, and the output end of the third self-locking motor is connected to the winding reel.

[0008] Preferably, a sealing ring is installed inside the liquid inlet.

[0009] Preferably, a limiting rod is installed inside the liquid storage cavity and on one side of the telescopic spring. The limiting rod passes through the piston, and a limiting hole that cooperates with the limiting rod is opened inside the piston.

[0010] Preferably, a drain pipe is connected to one side of each of the plurality of sampling tubes, and a valve is installed on one side of the drain pipe.

[0011] Preferably, the support plate has a threaded hole inside that mates with the threaded rod.

[0012] Preferably, a controller is mounted on the surface of the support frame.

[0013] This utility model provides a river water sampling device for water conservancy and hydropower projects, which has the following beneficial effects:

[0014] 1. The river water sampling equipment used in this water conservancy and hydropower project uses a rotating pressure plate on a fixed rod. Under the action of a screw, the pressure plate can be moved to the trigger rod of different sampling cylinders and squeezed, causing the piston at its bottom to move and open the inlet. River water then enters the sampling cylinder. Only one set of pressing structure is needed to allow multiple sampling cylinders to sample river water at different depths, which helps to reduce costs. The piston can automatically reset under the action of a spring and block the inlet. At the same time, a counterweight is placed on the support plate to increase the weight of the fixed rod and make it less susceptible to buoyancy.

[0015] 2. The river water sampling equipment used in this water conservancy and hydropower project allows for easy adjustment of the position and height of the positioning rod through the extension of the electric push rod and the rotation of the winding reel, enabling sampling of river water at different locations and depths. Furthermore, the limiting rod inside the sampling cylinder passes through the piston to limit its movement, which helps to keep the piston aligned with the liquid inlet when it slides. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side sectional view of the present invention;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram illustrating the operation of this utility model;

[0020] Figure 5 This is a front view of the present utility model.

[0021] In the diagram: 1. Support frame; 2. Electric push rod; 3. Mounting frame; 4. Winding reel; 5. Steel wire rope; 6. Fixing rod; 7. Sampling cylinder; 8. Liquid storage chamber; 9. Liquid inlet; 10. Piston; 11. Trigger rod; 12. Telescopic spring; 13. Convex groove; 14. Convex slider; 15. Waterproof box; 16. Pressure plate; 17. Lead screw; 18. First self-locking motor; 19. Second self-locking motor; 20. Support plate; 21. Counterweight; 22. Groove; 23. Threaded rod; 24. Positioning hole; 25. Third self-locking motor; 26. Sealing ring; 27. Limiting rod; 28. Limiting hole; 29. ​​Drain pipe; 30. Controller; 31. Threaded hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1 to 5This utility model provides a technical solution: a river water sampling device for water conservancy and hydropower projects, including a support frame 1, an electric push rod 2 mounted on the top of the support frame 1, a support plate located on one side of the support frame 1 below the electric push rod 2, consisting of a plate-shaped part and a circular hoop, the circular hoop being slidably connected to the output end of the electric push rod 2 to support it and prevent the electric push rod 2 from bearing downward force, a mounting frame 3 connected to the output end of the electric push rod 2, a winding reel 4 rotatably connected to one side of the mounting frame 3, a steel wire rope 5 wound around the outside of the shaft of the winding reel 4, a fixing rod 6 connected to one end of the steel wire rope 5, a plurality of sampling cylinders 7 mounted on one side of the fixing rod 6, and a third self-locking motor 25 mounted on one side of the mounting frame 3 and located on the top of the electric push rod 2. The output of the three self-locking motor 25 is connected to the winding reel 4, driving the winding reel 4 to rotate, thereby winding and unwinding the steel wire rope 5, and driving the fixed rod 6 and multiple sampling cylinders 7 to rise and fall. Adjusting their height, in conjunction with the extension of the electric push rod 2, facilitates the collection of water samples from different locations and depths. Each sampling cylinder 7 has a liquid storage chamber 8 inside, and each sampling cylinder 7 has a liquid inlet 9 at the top of the liquid storage chamber 8. A piston 10 is inserted inside the liquid inlet 9, and a sealing ring 26 is installed inside the liquid inlet 9 to increase the sealing between the liquid inlet 9 and the piston 10, preventing sample leakage. The piston 10 has a T-shaped structure, fitting snugly against the liquid inlet 9. A trigger rod 11 is connected to the top of the piston 10. An extension rod is installed inside the sampling cylinder 7. A spring 12 is extended, one end of which is connected to the piston 10. This spring supports the piston 10 and provides force for its reset. A convex groove 13 is provided inside the fixing rod 6, and a convex slider 14 is inserted into the groove 13. A waterproof box 15 is connected to one side of the slider 14, and a pressure plate 16 is rotatably connected to the top of the waterproof box 15. A lead screw 17 is rotatably connected inside the groove 13, passing through the slider 14 and threadedly connected to it. As the sampling cylinder 7 rotates, the lead screw 17 causes the slider 14 and pressure plate 16 to rise and fall. The pressure plate 16 then presses the trigger rod 11, pushing the piston 10 away from the inlet 9, opening the inlet 9, and allowing water to flow into the storage chamber 8 for sample preparation. During collection, the telescopic spring 12 can push the piston 10 to reset, automatically sealing the liquid inlet 9. A limit rod 27 is installed inside the liquid storage chamber 8, located on one side of the telescopic spring 12. The limit rod 27 passes through the piston 10, and a limit hole 28 is provided inside the piston 10 to cooperate with the limit rod 27. This limits the piston 10's sliding motion, ensuring stability and alignment with the liquid inlet 9. A first self-locking motor 18 is installed inside the fixing rod 6. The output end of the first self-locking motor 18 is connected to the lead screw 17, providing power for its rotation. A second self-locking motor 19 is installed inside the waterproof box 15. The output end of the second self-locking motor 19 is connected to the pressure plate 16, driving the pressure plate 16 to rotate.To facilitate moving the pressure plate 16 above or away from the trigger rod 11, and to prevent the trigger rod 11 from obstructing the lifting and lowering of the pressure plate 16, a drain pipe 29 is connected to one side of each of the multiple sampling cylinders 7. A valve is installed on one side of the drain pipe 29 to facilitate sample discharge. A support plate 20 is installed at the bottom of the fixing rod 6. Multiple counterweights 21 are sleeved on the outside of the fixing rod 6 and on the top of the support plate 20. Each counterweight 21 has a groove 22 inside, which fits into the fixing rod 6. A positioning hole 24 is provided inside each counterweight 21 and on one side of the groove 22. A threaded rod 23 is threadedly connected to the top of the support plate 20. Multiple positioning holes 24 are used to fix multiple counterweights 21, allowing the counterweights 21 to increase the weight of the fixing rod 6 and reduce the impact of buoyancy on the fixing rod 6. The support plate 20 has threaded holes 31 inside that mate with the threaded rod 23. The threaded connection facilitates the fixing and disassembly of the threaded rod 23, allowing the counterweights 21 to be removed. A controller 30 is mounted on the surface of the support frame 1. The steel wire rope 5, telescopic spring 12, threaded rod 23, and other metal parts used in this equipment are all made of stainless steel. A telescopic protective sleeve is provided on the outside of the threaded rod 23 to prevent debris in the water from affecting its use.

[0024] In summary, when using the river water sampling equipment for this water conservancy and hydropower project, multiple grooves 22 are sequentially fitted onto the outside of the fixed rod 6 and placed on the support plate 20. One end of the threaded rod 23 passes through the positioning holes 24 inside multiple counterweights 21 and the threaded holes 31 inside the support plate 20 and rotates, fixing the multiple counterweights 21. Simultaneously, the electric push rod 2 pushes the mounting frame 3 and the fixed rod 6 above the sampling point. At the same time, the third self-locking motor 25 drives the winding disc 4 to rotate, causing the fixed rod 6 to move down into the river water. The first self-locking motor 18 drives the lead screw 17 in the convex groove 13 inside the fixed rod 6 to rotate. Through the threaded connection between the lead screw 17 and the convex slider 14, the convex slider 14 and its side waterproof box 15 are displaced, causing the pressure plate 16 on the top of the waterproof box 15 to engage with the trigger rod 11 on one of the sampling cylinders 7. When the second self-locking motor 19 inside the waterproof box 15 drives the pressure plate 16 to rotate to the top of the trigger rod 11, the lead screw 17 again drives the convex slider 14 and the waterproof box 15 to move down, so that the pressure plate 16 squeezes the trigger rod 11, pushes the bottom piston 10 down, so that the piston 10 moves away from the liquid inlet 9 at the top of the sampling cylinder 7 and squeezes the telescopic spring 12. Water flows automatically into the liquid storage chamber 8 inside the sampling cylinder 7 through the liquid inlet 9. After collection, the pressure plate 16 rotates in the opposite direction and leaves the trigger rod 11. The telescopic spring 12 pushes the piston 10 to reset, so that the piston 10 blocks the liquid inlet 9 again. Similarly, by repeating the operation, the liquid inlets 9 on different sampling cylinders 7 can be opened. With the release and retraction of the steel wire rope 5 and the raising and lowering of the fixing rod 6, river water samples at different depths can be collected into different sampling cylinders 7.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A river water sampling device for water conservancy and hydropower engineering, comprising a support frame (1), characterized in that: The top of the support frame (1) is provided with an electric push rod (2), the output end of the electric push rod (2) is connected with a mounting frame (3), one side of the mounting frame (3) is rotatably connected with a wire reel (4), the outer side of the shaft of the wire reel (4) is wound with a steel wire rope (5), one end of the steel wire rope (5) is connected with a fixed rod (6), one side of the fixed rod (6) is provided with a plurality of sampling cylinders (7), the interiors of the plurality of sampling cylinders (7) are all provided with liquid storage cavities (8), the interiors of the plurality of sampling cylinders (7) and located at the top of the liquid storage cavities (8) are all provided with liquid inlets (9), the interiors of the liquid inlets (9) are inserted with pistons (10), the structure of the piston (10) is T-shaped, the piston (10) is attached to the liquid inlet (9), the top of the piston (10) is connected with a trigger rod (11), the interior of the sampling cylinder (7) is provided with a telescopic spring (12), one end of the telescopic spring (12) is connected with the piston (10), the interior of the fixed rod (6) is provided with a convex sliding groove (13), the interior of the convex sliding groove (13) is inserted with a convex sliding block (14), one side of the convex sliding block (14) is connected with a waterproof box (15), the top of the waterproof box (15) is rotatably connected with a pressing plate (16), the interior of the convex sliding groove (13) is rotatably connected with a lead screw (17), the lead screw (17) penetrates through the convex sliding block (14) and is threadedly connected with the convex sliding block (14), the interior of the fixed rod (6) is provided with a first self-locking motor (18), the output end of the first self-locking motor (18) is connected with the lead screw (17), the interior of the waterproof box (15) is provided with a second self-locking motor (19), the output end of the second self-locking motor (19) is connected with the pressing plate (16), the bottom of the fixed rod (6) is provided with a supporting plate (20), the outer side of the fixed rod (6) and located at the top of the supporting plate (20) is sleeved with a plurality of counterweights (21), the interiors of the plurality of counterweights (21) are all provided with grooves (22), the grooves (22) are attached to the fixed rod (6), the interiors of the plurality of counterweights (21) and located at one side of the grooves (22) are all provided with positioning holes (24), the top of the supporting plate (20) is threadedly connected with a threaded rod (23), the threaded rod (23) penetrates through the plurality of positioning holes (24).

2. The river water sampling device for water conservancy and hydropower engineering according to claim 1, characterized in that: One side of the mounting frame (3) and located at the top of the electric push rod (2) is provided with a third self-locking motor (25), the output end of the third self-locking motor (25) is connected with the wire reel (4).

3. The river water sampling device for water conservancy and hydropower engineering according to claim 1, characterized in that: The interior of the liquid inlet (9) is provided with a sealing ring (26).

4. The river water sampling device for water conservancy and hydropower engineering according to claim 1, characterized in that: The interior of the liquid storage cavity (8) and located at one side of the telescopic spring (12) is provided with a limiting rod (27), the limiting rod (27) penetrates through the piston (10), the interior of the piston (10) is provided with a limiting hole (28) matched with the limiting rod (27).

5. The river water sampling device for water conservancy and hydropower engineering according to claim 1, characterized in that: One side of the plurality of sampling cylinders (7) is connected with a drain pipe (29), one side of the drain pipe (29) is provided with a valve.

6. The river water sampling device for water conservancy and hydropower engineering according to claim 1, characterized in that: The support plate (20) is internally provided with a threaded hole (31) matched with the threaded rod (23).

7. The river water sampling device for water conservancy and hydropower engineering according to claim 1, characterized in that: The support frame (1) is externally provided with a controller (30).

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