A small water quality sampling device capable of carrying a remote control boat
By designing a small water quality sampling device that can be carried by a remote-controlled boat, and adopting a streamlined water sampler and pulley system, the problems of large weight, large sampling disturbance and low efficiency of existing sampling devices are solved, and rapid and safe water sample collection is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN OCEAN UNIV
- Filing Date
- 2025-09-02
- Publication Date
- 2026-08-04
AI Technical Summary
Existing water quality sampling devices are heavy, have a heavy operating burden, cause significant sampling disturbance, and have poor mobility. They are particularly inefficient in severe weather conditions and have high manpower and material costs.
Design a small water quality sampling device that can be carried by a remote-controlled boat. It adopts a streamlined tubular water sampler, equipped with a geared motor and pulley system. The raising and lowering of the water sampler is controlled by a remote controller, and the water sample can be collected quickly by using the remote-controlled boat.
It reduced the intensity and time cost of sampling work, improved sampling efficiency, reduced the risk of operation in severe weather, and enabled rapid sampling at any point and target water layer.
Smart Images

Figure CN224594240U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water sampling equipment technology, and in particular to a small water quality sampling device that can be carried by a remote-controlled boat. Background Technology
[0002] Water samplers are essential tools for monitoring water quality and aquatic communities in lakes, reservoirs, rivers, and aquaculture ponds. Among them, stainless steel water samplers and plexiglass water samplers are the most widely used.
[0003] Patent CN222013648U discloses a protective acrylic water sampler. This device uses protective rods and netting to block external impacts and utilizes nitrile rubber shock-absorbing pads and rings to absorb impact, reducing the impact on the tank body and internal structure. However, this design primarily focuses on external protection and still has the following significant limitations:
[0004] 1. Weight and operational burden: The acrylic material itself is already heavy, and the additional protective structure further increases the physical burden on the sampling personnel.
[0005] 2. Sampling disturbance problem: The cylindrical structure is prone to disturbing the water layer during the descent, which may result in the collected water sample not being able to accurately represent the water quality of the target water layer.
[0006] 3. Mobility and Efficiency Bottlenecks: Sampling work typically requires covering different locations and depths within the same body of water. Transporting these water samplers to and from sampling points often relies on small boats or foam floats. In scenarios with a large number of ponds, high sampling frequency, and wide distribution of sampling points, this method significantly increases manpower and material costs. Especially in windy weather, the difficulty and risk of surface operations increase significantly, further limiting sampling efficiency. Utility Model Content
[0007] The purpose of this invention is to provide a small water quality sampling device that can be equipped with a remote-controlled boat. This device replaces the traditional sampling method that relies on foam floats or manual rowing using plexiglass, enabling rapid collection of water samples from any point and target water layer in aquaculture ponds. This significantly reduces the intensity of sampling work, time costs, and operational risks in adverse weather conditions.
[0008] To achieve the above objectives, this utility model provides a small water quality sampling device that can be mounted on a remote-controlled boat, including a battery pack, a first copper wire, a signal receiving and control module, a second copper wire, a geared motor, a bracket, a fixing frame, and a water sampler. The battery pack is connected to the signal receiving and control module via the first copper wire, and the signal receiving and control module is connected to the geared motor via the second copper wire. The bracket and the fixing frame are both mounted on the remote-controlled boat. The geared motor is mounted on the bracket, and a first pulley is connected to the output shaft of the geared motor. A connecting shaft is inserted into the fixing frame and is rotatably connected to the fixing frame. A second pulley is sleeved on the connecting shaft and is fixedly connected to the connecting shaft. A traction line is connected to the water sampler, and the traction line passes around the second pulley and connects to the first pulley.
[0009] Preferably, the signal receiving and control module includes a 433MHz wireless receiver, a microcontroller unit, and a voltage regulator IC chip. The voltage regulator IC chip is connected to the battery pack via a first copper wire, the 433MHz wireless receiver is connected to the microcontroller unit, and the microcontroller unit is connected to the geared motor via a second copper wire.
[0010] Preferably, the signal receiving and control module also includes a learning button, which is connected to the microcontroller unit.
[0011] Preferably, an anti-detachment rod is fixedly installed on the upper right side of the fixing frame, and a baffle is fixedly installed on the fixing frame near the lower part of the second pulley. A through hole is opened on the baffle, and the traction line passes through the through hole and is connected to the water sampler.
[0012] Preferably, the water sampler includes a hanging rod, a first small ball, a water storage tank, and a second small ball. The water sampler has an outlet at its upper end, the hanging rod is inserted at the outlet, one end of the traction line passes through the hole and is connected to the hanging rod, the water storage tank is located inside the water sampler and has an upper opening, the first small ball is located at the upper opening, the water sampler has an inlet at its lower end, and the second small ball is located at the inlet.
[0013] Preferably, a counterweight is fixedly installed at the lower end of the side wall of the water sampler.
[0014] Preferably, it also includes a remote control, which is used to control the start and stop of the device.
[0015] Therefore, this utility model adopts the above-mentioned small water quality sampling device that can be equipped with a remote-controlled boat. It is used to carry a small remote-controlled boat to replace the traditional sampling mode of relying on foam floats or manual rowing using plexiglass. It can realize the rapid collection of water samples at any point and target water layer in the aquaculture pond, and greatly reduce the sampling work intensity, time cost and operation risk under bad weather.
[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the small water quality sampling device that can be equipped with a remote-controlled boat according to this utility model.
[0018] Figure 2 This is a schematic diagram of the specific structure of the signal receiving and control module in this utility model;
[0019] Figure 3 This is a three-dimensional structural diagram of a small water quality sampling device that can be equipped with a remote-controlled boat, as described in this utility model.
[0020] Figure Labels
[0021] 1. Battery pack; 2. First copper wire; 3. Signal receiving and control module; 4. Learning button; 5. 433MHz wireless receiver; 6. Microcontroller unit; 7. Voltage regulator IC chip; 8. Second copper wire; 9. Gear motor; 10. First pulley; 11. Bracket; 12. Traction line; 13. Fixing frame; 14. Connecting shaft; 15. Anti-detachment rod; 16. Second pulley; 17. Baffle; 18. Hanging rod; 19. First ball; 20. Water sampler; 21. Water storage tank; 22. Counterweight; 23. Second ball; 24. Water outlet; 25. Upper bottle opening; 26. Water inlet; 27. Remote control. Detailed Implementation
[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0023] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0024] like Figure 1As shown, a small water sampling device that can be mounted on a remote-controlled boat includes a battery pack 1, a first copper wire 2, a signal receiving and control module 3, a second copper wire 8, a geared motor 9, a bracket 11, a fixing frame 13, and a water sampler 20. The water sampler 20 adopts a streamlined tubular design. The battery pack 1 is connected to the signal receiving and control module 3 via the first copper wire 2. The signal receiving and control module 3 is connected to the geared motor 9 via the second copper wire 8. The bracket 11 and the fixing frame 13 are both mounted on the remote-controlled boat. The geared motor 9 is mounted on the bracket 11. A first pulley 10 is connected to the output shaft of the geared motor 9. A connecting shaft 14 is inserted into the fixing frame 13 and is rotatably connected to the fixing frame 13. A second pulley 16 is sleeved on the connecting shaft 14 and is fixedly connected to the connecting shaft 14. A traction line 12 is connected to the water sampler 20. The battery pack 1 is connected to the first pulley 10 by bypassing the second pulley 16. Specifically, one end of the battery pack 1 is provided with a first copper wire 2, which connects the battery pack 1 to the signal receiving and control module 3. The other side of the signal receiving and control module 3 is provided with a second copper wire 8, which connects the signal receiving and control module 3 to the geared motor 9. The bracket 11 and the fixing frame 13 are fixed to the remote control boat by screws or adhesive. The geared motor 9 is mounted on the bracket 11. The output shaft of the geared motor 9 is connected to the first pulley 10. The fixing frame 13 is provided with a connecting shaft 14, which is rotatably connected to the fixing frame 13. The second pulley 16 is sleeved on the connecting shaft 14 and welded to the connecting shaft 14. The water sampler 20 is connected with a traction line 12, and the other end of the traction line 12 bypasses the second pulley 16 and is bound to the first pulley 10.
[0025] like Figure 2 As shown, the signal receiving and control module 3 includes a 433MHz wireless receiver 5, a microcontroller unit 6, and a voltage regulator IC chip 7. The voltage regulator IC chip 7 is connected to the battery pack 1 via a first copper wire 2. The 433MHz wireless receiver 5 is connected to the microcontroller unit 6. The microcontroller unit 6 is connected to the geared motor 9 via a second copper wire 8. Specifically, the voltage regulator IC chip 7 is connected to the battery pack 1 via the first copper wire 2, the 433MHz wireless receiver 5 is connected to the microcontroller unit 6 via a wire, and the microcontroller unit 6 is connected to the geared motor 9 via the second copper wire 8.
[0026] The signal receiving and control module 3 also includes a learning button 4, which is connected to the microcontroller unit 6. Specifically, the learning button 4 is connected to the microcontroller unit 6 via a wire.
[0027] An anti-detachment rod 15 is fixedly installed on the upper right side of the fixed frame 13. A baffle 17 is fixedly installed on the fixed frame 13 near the lower part of the second pulley 16. A through hole is opened on the baffle 17. The traction line 12 passes through the through hole and is connected to the water sampler 20. Specifically, an anti-detachment rod 15 is welded to the upper right side of the fixed frame 13. A baffle 17 is welded to the lower part of the fixed frame 13 near the lower part of the second pulley 16. A through hole is opened on the baffle 17. The end of the traction line 12 away from the second pulley 16 passes through the through hole, and the end of the traction line 12 that passes through the through hole is connected to the water sampler 20.
[0028] like Figure 3 As shown, the water sampler 20 includes a hanging rod 18, a first small ball 19, a water storage tank 21, and a second small ball 23. The water sampler 20 has an outlet 24 at its upper end, and the hanging rod 18 is inserted into the outlet 24. One end of the traction line 12, passing through a hole, is connected to the hanging rod 18. The water storage tank 21 is located inside the water sampler 20, and an upper opening 25 is provided on the water storage tank 21. The first small ball 19 is located at the upper opening 25. The water sampler 20 has an inlet 26 at its lower end, and the second small ball 23 is located at the inlet. Specifically, at point 26, the water sampler 20 has an outlet 24 at its upper end, a hanging rod 18 is inserted at the outlet 24, and one end of the traction line 12 passes through the hole and is connected to the hanging rod 18. The water sampler 20 has a water storage tank 21 inside, and an upper bottle opening 25 is provided on the water storage tank 21. A first small ball 19 is provided at the upper bottle opening 25 to block the upper bottle opening 25. The water sampler 20 has an inlet 26 at its lower end, and a second small ball 23 is provided at the inlet 26 to block the inlet 26.
[0029] A counterweight 22 is fixedly installed at the lower end of the side wall of the water sampler 20. Specifically, the counterweight 22 is sleeved on the lower end of the side wall of the water sampler 20 and welded to the side wall of the water sampler 20.
[0030] It also includes a remote controller 27, which is used to control the start and stop of the device. Specifically, the remote controller 27 is used to send start, stop, rise and fall commands to control the operation of the device.
[0031] Working principle: During use, battery pack 1 provides voltage and current to signal receiving and control module 3 and geared motor 9. After power input, it passes through voltage regulator IC chip 7 to power 433MHz wireless receiver 5, converting wireless signals into digital signals and sending them to microcontroller unit 6. After decoding the wireless digital signals, the microcontroller unit 6 obtains the key codes of remote control 27. According to the predefined control logic, it controls microcontroller unit 6 to drive geared motor 9 to rotate forward or reverse. The first pulley 10 mounted on geared motor 9 drives traction line 12 through second pulley 16 to realize the lifting and stopping of water sampler 20. When the command of remote control 27 is to descend, geared motor 9 rotates clockwise, driving water sampler 20 downward through traction line 12. As water sampler 20 descends, second ball 23 floats upward due to water pressure. Water flow continuously merges in, water tank 21 of water sampler 20 fills with water, and pushes first ball 19 upward. As the water sampler 20 descends, water will continuously flow in from the inlet 26 and out through the outlet 24, thus traversing the water layer. When the sampler 20 reaches the target water layer, pressing the pause button on the remote control 27 will cause the sampler 20 to float in the water layer and reach a stationary state. At this time, the second ball 23 and the first ball 19, under the influence of gravity, will block the inlet 26 of the sampler 20 and the upper opening 25 of the water storage tank 21, preserving the water sample from the target water layer inside the water storage tank 21. When the remote control command is to ascend, the reduction motor 9 rotates counterclockwise, driving the sampler 20 upward through the traction line 12, blocking the inlet 26 of the sampler 20 and the upper opening 25 of the water storage tank 21. Once the sampler 20 floats above the water surface, pressing the pause button on the remote control 27 completes the sampling process.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the 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 still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.
Claims
1. A small water quality sampling device that can be mounted on a remotely controlled boat, characterized in that: The system includes a battery pack, a first copper wire, a signal receiving and control module, a second copper wire, a geared motor, a bracket, a mounting frame, and a water sampler. The battery pack is connected to the signal receiving and control module via the first copper wire, and the signal receiving and control module is connected to the geared motor via the second copper wire. The bracket and mounting frame are both mounted on the remote-controlled boat. The geared motor is mounted on the bracket, and a first pulley is connected to the output shaft of the geared motor. A connecting shaft is inserted into the mounting frame, and the connecting shaft is rotatably connected to the mounting frame. A second pulley is sleeved on the connecting shaft, and the second pulley is fixedly connected to the connecting shaft. A traction line is connected to the water sampler, and the traction line passes around the second pulley and connects to the first pulley.
2. A small water quality sampling device capable of carrying a remotely controlled boat according to claim 1, characterized in that: The signal receiving and control module includes a 433MHz wireless receiver, a microcontroller unit, and a voltage regulator IC chip. The voltage regulator IC chip is connected to the battery pack via the first copper wire, the 433MHz wireless receiver is connected to the microcontroller unit, and the microcontroller unit is connected to the geared motor via the second copper wire.
3. A small water quality sampling device capable of carrying a remotely controlled boat according to claim 2, characterized in that: The signal receiving and control module also includes a learning button, which is connected to the microcontroller unit.
4. A small water quality sampling device capable of carrying a remotely controlled boat according to claim 1, characterized in that: An anti-detachment rod is fixedly installed on the upper right side of the fixed frame. A baffle is fixedly installed on the fixed frame near the lower part of the second pulley. A through hole is opened on the baffle, and the traction line passes through the through hole and is connected to the water sampler.
5. A small water quality sampling device capable of carrying a remotely controlled boat according to claim 4, characterized in that: The water sampler includes a hanging rod, a first small ball, a water storage tank, and a second small ball. The water sampler has an outlet at its upper end, and the hanging rod is inserted into the outlet. One end of the traction line passing through the hole is connected to the hanging rod. The water storage tank is located inside the water sampler and has an upper opening. The first small ball is located at the upper opening. The water sampler has an inlet at its lower end, and the second small ball is located at the inlet.
6. A small water quality sampling device capable of carrying a remotely controlled boat according to claim 5, characterized in that: A counterweight is fixedly installed at the lower end of the side wall of the water sampler.
7. A small water quality sampling device capable of carrying a remotely controlled boat according to claim 1, characterized in that: It also includes a remote control, which is used to control the start and stop of the device.