A river water sample sampling assembly
By introducing an intercepting net, a scraper, and an automatic opening and closing mechanism into the river water sampling component, the problems of debris entanglement in the river water and cumbersome operation were solved, achieving efficient and accurate river water sampling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU PROCESS DETECTION TECH CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-31
AI Technical Summary
River water often contains debris such as aquatic plants and plastic bags, which can easily get tangled in or enter the sampling tube, affecting sampling efficiency and making it difficult to clean. Traditional sampling tools are cumbersome to operate and have low accuracy.
A river water sample collection assembly was designed, comprising an interception net, a scraper, a drive motor, and an automatic opening and closing mechanism. The interception net intercepts debris, the scraper cleans debris, and the automatic opening and closing mechanism enables the automatic opening and closing of the inlet, combined with buoyancy control via a float and a water storage tank.
Effectively intercepts and clears debris, improves sampling efficiency, simplifies operation procedures, and ensures sampling accuracy and efficiency.
Smart Images
Figure CN224581187U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of river water sampling technology, and in particular to a river water sample sampling component. Background Technology
[0002] In water environment monitoring, in order to fully understand the quality of river water, it is necessary to regularly sample river water at different depths and in different sections of the river.
[0003] However, in practice, the following problems exist: River water often contains strip-shaped or block-shaped debris such as aquatic plants and plastic bags. These debris can easily become entangled or enter the inside of the sampling tube, which not only affects the sampling efficiency but also makes the sampling tube difficult to clean and may even contaminate the sample. On the other hand, the water inlet of traditional sampling tools often needs to be opened and closed manually. When the sampling tube sinks to the target depth, the operator needs to manually control the water inlet with ropes, etc., and then manually close it after sampling. The operation is cumbersome and has low accuracy. Utility Model Content
[0004] Purpose of the utility model: The purpose of this utility model is to provide a river water sample collection component to address the aforementioned shortcomings in the prior art.
[0005] Technical solution: A river water sample collection component, including a sampling tube, with an interception net connected to the bottom of the sampling tube via a mounting frame, and a cleaning mechanism provided below the interception net;
[0006] The cleaning mechanism includes a rotating shaft that is rotatably connected to the interception net, and the rotating shaft is provided with a scraper to remove debris from the outer surface of the interception net;
[0007] It also includes a drive mechanism, which includes a drive motor mounted on the sampling cylinder, and the output end of the drive motor is connected to the rotating shaft.
[0008] As a further description of the above technical solution: the bottom of the sampling tube includes a base, which is located directly above the interception net, and the base is provided with a water inlet.
[0009] As a further description of the above technical solution: the sampling tube is also provided with an automatic opening and closing mechanism, the automatic opening and closing mechanism includes a movable seat, and a rubber plug for use with the water inlet is provided on the bottom surface of the movable seat, and the rubber plug is located directly above the water inlet;
[0010] The top surface of the movable seat is connected to a float via a connecting rope. The float is located outside the sampling tube, and the connecting rope runs through the sampling tube.
[0011] As a further description of the above technical solution: a water storage tank is provided on the top of the movable seat.
[0012] As a further description of the above technical solution: the base is provided with two sliding shafts, and the side wall of the movable seat is provided with two corresponding sliders. The sliders are sleeved on the outside of the corresponding sliding shafts, and the top of the sliding shafts is provided with limit blocks.
[0013] As a further description of the above technical solution: a protective shell is provided on the outside of the drive motor, located outside the drive motor, and the protective shell is arranged in a sealed manner with the top surface of the sampling tube.
[0014] As a further description of the above technical solution: the inner side of the protective shell is provided with a receiving groove for placing the drive motor, and the protective shell is provided with a flow pipe that passes through the receiving groove.
[0015] As a further description of the above technical solution: a water outlet is provided through the side wall near the bottom of the sampling tube for releasing the river water collected inside the sampling tube.
[0016] As a further description of the above technical solution: a fixing frame is provided on the side wall of the sampling tube, and a connecting ring is provided on the top of the fixing frame.
[0017] Beneficial effects: The interception net below the sampling tube can effectively intercept strip-shaped and block-shaped debris in the river water, preventing them from entering the sampling tube and causing entanglement or pollution. In conjunction with the scraper driven by the drive motor, the debris attached to the outer surface of the interception net can be cleaned in real time to prevent blockage, ensure smooth entry of river water, and improve sampling efficiency.
[0018] In addition, the automatic opening and closing mechanism uses the buoyancy of the float and the weight of the water tank to realize the automatic opening and closing of the water inlet. When the sampling tube sinks to the target depth, the pull of the float causes the rubber stopper to detach from the water inlet to complete the automatic water intake. After sampling, the river water remaining in the water tank increases the weight of the movable seat, allowing the rubber stopper to re-seal the water inlet without manual intervention, reducing the difficulty of operation. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural schematic diagram of a river water sample collection component proposed in this utility model;
[0020] Figure 2 This is a cross-sectional view of the sampling tube of this utility model;
[0021] Figure 3 This diagram shows the interaction between the interception net and the cleaning mechanism of this utility model.
[0022] Figure 4 for Figure 2 Enlarged view of point A in the middle;
[0023] Figure 5 This is a schematic diagram of the automatic opening and closing mechanism of this utility model.
[0024] Legend:
[0025] 1. Sampling tube; 2. Mounting frame; 3. Interception net; 4. Rotating shaft; 5. Scraper; 7. Drive motor; 8. Protective shell; 9. Receiving tank; 10. Flow pipe; 11. Base; 12. Inlet; 13. Float; 14. Connecting rope; 15. Movable seat; 16. Water storage tank; 17. Rubber stopper; 18. Sliding shaft; 19. Sliding block; 20. Limiting block; 21. Fixing frame; 22. Connecting ring; 23. Outlet. Detailed Implementation
[0026] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0027] Reference Figure 1 - Figure 5 A river water sample collection assembly includes a sampling tube 1. An interception net 3 is connected to the bottom of the sampling tube 1 via a mounting frame 2. The interception net 3 is used to intercept strip-shaped debris, thereby avoiding the problem of strip-shaped debris getting tangled inside the sampling tube 1 and being difficult to clean out. A cleaning mechanism is provided below the interception net 3.
[0028] The cleaning mechanism includes a rotating shaft 4 rotatably connected to the interception net 3, and a scraper 5 for scraping off debris from the outer surface of the interception net 3 is provided on the rotating shaft 4. It should be noted that the scraper 5 is arranged close to the outside of the blockage of the interception net 3, and is preferably made of synthetic fluororubber, which can reduce wear between it and the interception net 3.
[0029] It also includes a drive mechanism, which includes a drive motor 7 mounted on the sampling tube 1. The output end of the drive motor 7 is connected to the rotating shaft 4. It should be noted that the drive motor 7 is connected to an external controller. The operator can control the start and stop of the drive motor 7 through the external controller, and waterproof treatment is performed by applying a waterproof coating to the output end.
[0030] Furthermore, the bottom of the sampling tube 1 includes a base 11 located directly above the interception net 3. The base 11 has a water inlet 12, which allows river water to flow into the interior of the sampling tube 1 for sampling.
[0031] Furthermore, the sampling tube 1 is also provided with an automatic opening and closing mechanism. The automatic opening and closing mechanism includes a movable seat 15. A rubber plug 17 that works with the water inlet 12 is provided on the bottom surface of the movable seat 15. The rubber plug 17 is located directly above the water inlet 12 and can block the water inlet 12 by moving the rubber plug 17 up and down.
[0032] The top surface of the movable seat 15 is connected to a float 13 via a connecting rope 14. The float 13 is located outside the sampling tube 1, and the connecting rope 14 runs through the sampling tube 1. After the sampling tube 1 sinks to a certain depth, the buoyancy of the float 13 can be used to apply an upward pulling force to the movable seat 15, thereby causing the rubber stopper 17 to separate from the water inlet 12.
[0033] Furthermore, a water storage tank 16 is provided on the top of the movable seat 15, which allows some river water to remain inside the water storage tank 16 during the process of taking the sampling tube 1 out of the river water, thereby increasing the weight of the movable seat 15. At this time, the connecting rope 14 is in a slack state, so the float 13 will not exert an upward pulling force. As a result, under the action of the gravity of the water inside the water storage tank 16, the movable seat 15 will once again insert the rubber plug 17 into the water inlet 12 and block the water inlet 12.
[0034] Furthermore, the base 11 is provided with two sliding shafts 18, and the side wall of the movable seat 15 is provided with two corresponding sliders 19. The sliders 19 are sleeved on the outside of the corresponding sliding shafts 18, and the top of the sliding shafts 18 is provided with a limiting block 20. Through the action of the sliding shafts 18 and the sliders 19, the direction of the movable seat 15 moving up and down can be restricted, so as to prevent the rubber plug 17 from being misaligned with the water inlet 12 below. The limiting block 20 also limits the maximum height that the movable seat 15 can rise, so as to prevent it from detaching from the sliding shafts 18.
[0035] Furthermore, a protective shell 8 is fitted around the outside of the drive motor 7, and the protective shell 8 is sealed to the top surface of the sampling cylinder 1, further waterproofing the drive motor 7.
[0036] Furthermore, the inner side of the protective shell 8 is provided with a receiving groove 9 for placing the drive motor 7, and the protective shell 8 is provided with a flow pipe 10 that passes through the receiving groove 9. It should be noted that when the sampling tube 1 moves to the depth of the river water, some river water will enter from the bottom of the flow pipe 10, and then the river water will flow from bottom to top inside the flow pipe 10, which can carry away the heat inside the receiving groove 9 and cool down the drive motor 7.
[0037] Furthermore, a water outlet 23 is provided through the side wall near the bottom of the sampling tube 1 for releasing the river water collected inside the sampling tube 1. It should be noted that the water outlet 23 is often used in conjunction with a rubber tube, and the end of the rubber tube is tied up with a rope during the sampling process.
[0038] Furthermore, a fixing frame 21 is provided on the side wall of the sampling tube 1, and a connecting ring 22 is provided on the top of the fixing frame 21. The tube can be connected to the connecting ring 22 by a rope, and the other end can be held by the operator to put the sampling tube 1 into the river water for sampling.
[0039] The general working principle is as follows: First, the rope is tied to the connecting ring 22, and the sampling tube 1 is slowly lowered into the river water by operating the rope. If there is a lot of debris in the river water, the drive motor 7 can be started to drive the rotating shaft 4 to rotate, which in turn drives the scraper 5 to rotate outside the interception net 3. This prevents garbage and debris such as packaging bags from blocking the interception net 3 and making it difficult for river water to enter the sampling tube 1. The interception net 3 can intercept the debris and prevent it from entering the sampling tube 1 and getting tangled inside, making it difficult to clean. After the sampling tube 1 enters the river water, the float 13 still floats on the water surface under the action of buoyancy. Then, the connecting rope 14 changes from a slack state to a taut state, and the sampling tube 1 continues to move downwards. The trend of the water flow pulls the movable seat 15 upward, causing the rubber plug 17 below the movable seat 15 to detach from the water inlet 12, thus enabling automatic sampling of the river water. After sampling, the sampling tube 1 is pulled upward, and the sampling tube 1 begins to move upward again. River water remains inside the water storage tank 16, increasing the weight of the movable seat 15, which then moves the movable seat 15 downward relative to the sampling tube 1. The rubber plug 17 then blocks the water inlet 12 again, keeping the river water inside the sampling tube 1. This allows for automatic control of the water inlet channel, enabling automatic sampling. The structure is simple, eliminating the need to manually open the channel for the river water to enter the sampling tube 1 after placing it in the river, and then manually close the channel afterward.
[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A river water sample sampling assembly comprising a sampling barrel (1), characterised in that, A netting (3) is connected to the bottom of the sampling tube (1) via a mounting bracket (2), and a cleaning mechanism is provided below the netting (3); The cleaning mechanism includes a rotating shaft (4) that is rotatably connected to the interception net (3), and the rotating shaft (4) is provided with a scraper (5) for scraping off debris from the outer surface of the interception net (3). It also includes a drive mechanism, which includes a drive motor (7) mounted on the sampling tube (1), and the output end of the drive motor (7) is connected to the rotating shaft (4).
2. The river water sample collection component according to claim 1, characterized in that, The bottom of the sampling tube (1) includes a base (11) located directly above the interception net (3), and an inlet (12) is provided on the base (11).
3. The river water sample collection component according to claim 2, characterized in that, The sampling tube (1) is also equipped with an automatic opening and closing mechanism. The automatic opening and closing mechanism includes a movable seat (15). A rubber plug (17) for use with the water inlet (12) is provided on the bottom surface of the movable seat (15), and the rubber plug (17) is located directly above the water inlet (12). The top surface of the movable seat (15) is connected to a float (13) by a connecting rope (14). The float (13) is located outside the sampling tube (1), and the connecting rope (14) runs through the sampling tube (1).
4. A river water sample collection component according to claim 3, characterized in that, A water tank (16) is provided on the top of the movable seat (15).
5. A river water sample collection device according to claim 3, characterized in that, The base (11) is provided with two sliding shafts (18), and the side wall of the movable seat (15) is provided with two corresponding sliders (19). The sliders (19) are sleeved on the outside of the corresponding sliding shafts (18), and the top of the sliding shafts (18) is provided with limit blocks (20).
6. A river water sample collection component according to claim 1, characterized in that, The drive motor (7) is fitted with a protective shell (8) on its outer side, which is located on the outer side of the drive motor (7), and the protective shell (8) is sealed to the top surface of the sampling tube (1).
7. A river water sample collection component according to claim 6, characterized in that, The inner side of the protective shell (8) is provided with a receiving groove (9) for placing the drive motor (7), and the protective shell (8) is provided with a flow pipe (10) that passes through the receiving groove (9).
8. A river water sample collection device according to claim 1, characterized in that, The sampling tube (1) has a water outlet (23) through the side wall near the bottom, which is used to release the river water collected inside the sampling tube (1).
9. A river water sample collection device according to claim 1, characterized in that, A fixing frame (21) is provided on the side wall of the sampling tube (1), and a connecting ring (22) is provided on the top of the fixing frame (21).