Rapid sampling structure for river and lake water quality detection

Abstract

The utility model relates to a quick sampling structure for river and lake water quality detection, which comprises a sampling barrel and a mounting rack arranged on the sampling barrel, and the mounting rack is connected with a main rope; the piston rod is arranged on the mounting frame in a sliding manner, a piston plate is arranged on the piston rod, and a water sample is drawn through the piston plate; the floating ball is arranged on the main rope in a sliding mode, and an auxiliary rope is arranged on the floating ball; during sampling, a floating ball keeps a relative position by utilizing buoyancy and is connected with a sliding ring through an auxiliary rope, and when a sampling barrel sinks, the floating ball drives the sliding ring to move in an embedding groove of a mounting frame, so that limitation on a piston rod is automatically relieved through sliding of a cross rod in a chute of a limiting block, and a piston plate sucks a water sample under the action of a spring I; meanwhile, the position of the floating ball is rapidly adjusted through a pig nose buckle, the sampling efficiency of water at different depths is greatly improved, the detection requirement can be rapidly responded, and the device adapts to water quality detection scenes of rivers and lakes at different depths.

Description

Technical Field

[0001] This utility model belongs to the field of water quality sampling technology, specifically relating to a rapid sampling structure for river and lake water quality testing. Background Technology

[0002] River and lake water quality testing is of great significance for ensuring drinking water safety, providing early warning of water pollution, assessing the effectiveness of environmental governance, promoting scientific research and public participation in environmental protection actions. It is a key measure to protect water resources, maintain ecological balance and promote sustainable development, and therefore sampling and testing are necessary.

[0003] Traditional water quality testing sampling devices require operators to spend a lot of time disassembling and reassembling the equipment when the sampling depth needs to be changed. This not only consumes manpower but also seriously affects the testing efficiency. Furthermore, the lack of an effective depth adjustment mechanism makes it difficult to quickly adjust to different depths for water sample collection according to actual needs, thus failing to meet the testing requirements for water quality at different water layers. Utility Model Content

[0004] The purpose of this invention is to provide a rapid sampling structure for river and lake water quality testing that allows for quick adjustment of sampling depth in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A rapid sampling structure for river and lake water quality testing includes a sampling bucket and a mounting frame set on the sampling bucket, with a main rope connected to the mounting frame.

[0007] It also includes:

[0008] A piston rod is slidably mounted on a mounting frame, and a piston plate is provided on the piston rod for drawing water samples.

[0009] A buoy, which is slidably mounted on the main rope, and a secondary rope is provided on the buoy;

[0010] A sliding ring is slidably mounted on the mounting bracket, and the sliding ring is connected to the float.

[0011] A limiting block is slidably mounted on the mounting bracket and moves with the float via a sliding ring, thereby releasing the piston rod from its restriction.

[0012] As a further optimization of this utility model, the mounting frame is provided with a hanging ear on both sides, the mounting frame is connected to the main rope through the hanging ear, the mounting frame is provided with an embedding groove, and the sliding ring is slidably disposed in the embedding groove.

[0013] As a further optimization of this utility model, a spring is sleeved on the piston rod, with the two ends of the spring respectively set on the mounting bracket and the piston plate. An annular limiting groove is opened on the piston rod, and the limiting block can be embedded in the limiting groove.

[0014] As a further optimization of this utility model, the sliding ring is sleeved on the piston rod, and the sliding ring is provided with three hanging ears on both sides. The sliding ring is connected to the auxiliary rope through the three hanging ears. Through grooves are opened on both sides of the sliding ring, and the limiting block is slidably arranged in the through groove. A crossbar is provided in the through groove.

[0015] As a further optimization of this utility model, a second spring is provided between the limiting block and the mounting bracket, and an inclined groove is provided on the limiting block, with the crossbar slidably disposed in the inclined groove.

[0016] As a further optimization of this utility model, the sliding ring is provided with magnet B, and the embedded groove is provided with magnet A, and magnet A and magnet B attract each other.

[0017] As a further optimization of this utility model, a rubber pad is provided at the bottom hinge of the inner surface of the sampling barrel, and a sampling hole is provided on the sampling barrel, which is located below the rubber pad.

[0018] As a further optimization of this utility model, the float is provided with a second hanging ear, the float is connected to the auxiliary rope through the second hanging ear, and both the main rope and the auxiliary rope are provided with pig nose buckles.

[0019] The beneficial effects of this utility model are as follows:

[0020] Unlike existing technologies, in actual use, during sampling, the float maintains its relative position using buoyancy. It is connected to a sliding ring via a secondary rope. When the sampling bucket sinks, the float moves the sliding ring within the embedded groove of the mounting frame, and then slides within the inclined groove of the limiting block via a crossbar, automatically releasing the restriction on the piston rod. This allows the piston plate to draw water samples under the action of a spring. Simultaneously, the position of the float can be quickly adjusted via a pig-nose buckle, greatly improving the efficiency of water quality sampling at different depths. It can quickly respond to testing needs and adapt to water quality testing scenarios at different depths in rivers and lakes. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a partial cross-sectional structural diagram of the sampling bucket of this utility model;

[0023] Figure 3 This is a schematic diagram of the mounting bracket connection structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the mounting bracket structure of this utility model;

[0025] Figure 5 This is a utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0026] Figure 6 This is a schematic diagram of the sliding ring structure of this utility model.

[0027] In the diagram: 1. Sampling bucket; 2. Mounting frame; 21. Hanging ear one; 22. Embedded groove; 3. Float; 31. Hanging ear two; 4. Piston rod; 41. Piston plate; 42. Spring one; 43. Limiting groove; 5. Rubber pad; 51. Sampling hole; 6. Sliding ring; 61. Through groove; 62. Crossbar; 63. Hanging ear three; 7. Limiting block; 71. Spring two; 72. Inclined groove; 8. Magnet A; 81. Magnet B; 9. Main rope; 10. Secondary rope; 11. Pig nose buckle. Detailed Implementation

[0028] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0029] Example 1

[0030] like Figure 1 - Figure 6 As shown, a rapid sampling structure for river and lake water quality testing includes a sampling bucket 1 and a mounting frame 2 set on the sampling bucket 1, with a main rope 9 connected to the mounting frame 2;

[0031] It also includes:

[0032] Piston rod 4 is slidably mounted on mounting bracket 2. Piston plate 41 is provided on piston rod 4, and water sample is drawn through piston plate 41.

[0033] Float 3 is slidably mounted on the main rope 9, and a secondary rope 10 is mounted on float 3;

[0034] The sliding ring 6 is slidably mounted on the mounting bracket 2 and is connected to the float 3.

[0035] Limiting block 7 is slidably mounted on mounting bracket 2 and moves with float 3 via sliding ring 6, while limiting block 7 releases the restriction of piston rod 4.

[0036] The mounting frame 2 has hanging ears 21 on both sides, and the mounting frame 2 is connected to the main rope 9 through the hanging ears 21. The mounting frame 2 has an embedding groove 22, and the sliding ring 6 is slidably set in the embedding groove 22. The main rope 9 is connected through the hanging ears 21 on both sides, which provides stable suspension support for the entire sampling structure, making it easy to put the sampling bucket 1 into the river or lake. The embedding groove 22 provides a precise sliding track for the sliding ring 6, ensuring the smoothness and stability of the relative movement between the structures.

[0037] A spring 42 is fitted onto the piston rod 4, with its two ends respectively mounted on the mounting bracket 2 and the piston plate 41. An annular limiting groove 43 is provided on the piston rod 4, and the limiting block 7 can be embedded in the limiting groove 43. The design of the spring 42 fitted onto the piston rod 4, together with the limiting block 7 and the limiting groove 43, allows the piston plate 41 to move upward quickly under the action of the spring 42 after the piston rod 4 is pressed and fixed, when the limiting block 7 is released, thus accurately and efficiently drawing water samples. The operation is simple and the water drawing action is reliable. At the same time, the single spring 42 ensures that the piston plate 41 moves downward stably, preventing the piston plate 41 from tilting and getting stuck.

[0038] The sliding ring 6 is fitted onto the piston rod 4. The sliding ring 6 has three hanging ears 63 on both sides. The sliding ring 6 is connected to the auxiliary rope 10 through the three hanging ears 63. The sliding ring 6 has through grooves 61 on both sides. The limiting block 7 is slidably set in the through groove 61. The through groove 61 is provided with a crossbar 62. On the one hand, it is fitted onto the piston rod 4 and slides in the embedded groove 22 of the mounting bracket 2 to accurately transmit the movement of the float 3. On the other hand, the through grooves 61 and the crossbar 62 on both sides work together with the limiting block 7 to realize the automatic release of the restriction on the piston rod 4.

[0039] A spring 71 is provided between the limiting block 7 and the mounting bracket 2. An inclined groove 72 is provided on the limiting block 7. A crossbar 62 is slidably disposed in the inclined groove 72. By moving the crossbar 62 in the inclined groove 72, the limiting block 7 is driven to move to both sides, thereby allowing the limiting block 7 to be dislodged from the limiting groove 43.

[0040] The sliding ring 6 is equipped with a magnet B81, and the embedded groove 22 is equipped with a magnet A8. The magnet A8 and the magnet B81 attract each other, which can help fix the position of the sliding ring 6.

[0041] A rubber pad 5 is installed on the bottom hinge of the inner surface of the sampling bucket 1. A sampling hole 51 is provided on the sampling bucket 1. The sampling hole 51 is located below the rubber pad 5. It is fully opened during sampling so as not to obstruct the water sample from entering. After sampling is completed, the sampling hole 51 is automatically covered as the sampling bucket 1 is lifted, effectively preventing the water sample from being lost during the lifting process.

[0042] The float 3 is equipped with a second hanging lug 31, which connects the float 3 to the auxiliary rope 10. Both the main rope 9 and the auxiliary rope 10 are equipped with pig nose buckles 11. The pig nose buckle 11 on the main rope 9 is located below the float 3, while the pig nose buckle 11 on the auxiliary rope 10 is located below the second hanging lug 31. The main rope 9 is used to suspend the entire sampling device, and the auxiliary rope 10 connects the float 3 to the sliding ring 6. The pig nose buckles 11 on the main and auxiliary ropes can flexibly adjust the position of the float 3 on the main rope 9 and the length of the auxiliary rope 10, which greatly enhances the device's ability to adapt to sampling needs under different depths and water flow environments.

[0043] It should be noted that the working principle of the rapid sampling structure for river and lake water quality testing is as follows: Press the piston rod 4 down until the limiting block 7 is embedded in the limiting groove 43 to fix the position of the piston rod 4. Then, the sampling bucket 1 is connected to the main rope 9 through the first hanging ear 21 on the mounting frame 2 and placed into the river or lake until the float 3, which is slidably set on the main rope 9, floats on the water surface. The float 3 is connected to the secondary rope 10 through the second hanging ear 31. The secondary rope 10 is connected to the sliding ring 6 through the third hanging ear 63. The sliding ring 6 is fitted on the piston rod 4 and can slide in the embedding groove 22 of the mounting frame 2. When sampling bucket 1 sinks, the float 3, due to buoyancy, is relatively fixed in position, causing the sliding ring 6 to move relative to each other within the embedded groove 22. As the sliding ring 6 moves, the crossbars 62 on both sides, passing through the grooves 61, slide within the inclined grooves 72 of the limiting block 7, causing the limiting block 7 to move on both sides until it overcomes the resistance of the second spring 71, causing the limiting block 7 to disengage from the limiting groove 43. Under the action of the first spring 42, the piston rod 4 drives the piston plate 41 to move upward to draw water samples. At this time, the rubber pad 5 is fully opened. After sampling, the sampling bucket 1 is lifted. As the sampling bucket 1 is lifted, the rubber pad 5 covers the sampling hole 51 again. The magnet B81 on the sliding ring 6 attracts the magnet A8 on the embedded groove 22, which helps to fix the position of the sliding ring 6. The pig nose buckle 11 on the main rope 9 and the auxiliary rope 10 can be used to adjust the position of the float 3 on the main rope 9 and the length of the auxiliary rope 10.

[0044] The embodiments described above are merely examples 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 modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A rapid sampling structure for river and lake water quality detection, comprising a sampling bucket (1) and a mounting rack (2) arranged on the sampling bucket (1), characterized in that: The mounting frame (2) is connected with a main rope (9); It also includes: A piston rod (4) is slidingly arranged on the mounting frame (2), and a piston plate (41) is arranged on the piston rod (4), and water samples are drawn through the piston plate (41); A floating ball (3) is slidingly arranged on the main rope (9), and a secondary rope (10) is arranged on the floating ball (3); A sliding ring (6) is slidingly arranged on the mounting frame (2), and the sliding ring (6) is connected with the floating ball (3); A limiting block (7) is slidingly arranged on the mounting frame (2), and the limiting block (7) removes the limitation of the piston rod (4) by following the floating ball (3) through the sliding ring (6).

2. The quick sampling structure for river and lake water quality detection according to claim 1, characterized in that: The mounting frame (2) is provided with a hanging ear I (21) on both sides, and the mounting frame (2) is connected with the main rope (9) through the hanging ear I (21). An embedding groove (22) is formed in the mounting frame (2), and the sliding ring (6) is slidingly arranged in the embedding groove (22).

3. The quick sampling structure for river and lake water quality detection according to claim 1, characterized in that: A spring I (42) is sleeved on the piston rod (4), and the two ends of the spring I (42) are arranged on the mounting frame (2) and the piston plate (41) respectively. An annular limiting groove (43) is formed in the piston rod (4), and the limiting block (7) can be embedded in the limiting groove (43).

4. The quick sampling structure for river and lake water quality detection according to claim 1, characterized in that: The sliding ring (6) is sleeved on the piston rod (4), and the sliding ring (6) is provided with a hanging ear III (63) on both sides. The sliding ring (6) is connected with the secondary rope (10) through the hanging ear III (63). Through grooves (61) are formed on both sides of the sliding ring (6), and the limiting block (7) is slidingly arranged in the through grooves (61). A cross rod (62) is arranged in the through grooves (61).

5. The quick sampling structure for river and lake water quality detection according to claim 4, characterized in that: A spring II (71) is arranged between the limiting block (7) and the mounting frame (2), and an inclined groove (72) is formed in the limiting block (7). The cross rod (62) is slidingly arranged in the inclined groove (72).

6. The quick sampling structure for river and lake water quality detection according to claim 2, characterized in that: The sliding ring (6) is provided with a magnet B (81), and a magnet A (8) is arranged on the embedding groove (22). The magnet A (8) and the magnet B (81) are attracted to each other.

7. The quick sampling structure for river and lake water quality detection according to claim 1, characterized in that: A rubber pad (5) is hingedly arranged on the inner surface of the bottom of the sampling barrel (1), and a sampling hole (51) is formed in the sampling barrel (1). The sampling hole (51) is located below the rubber pad (5).

8. The quick sampling structure for river and lake water quality detection according to claim 1, characterized in that: The floating ball (3) is provided with a hanging ear II (31), and the floating ball (3) is connected with the secondary rope (10) through the hanging ear II (31). Pig nose buckles (11) are arranged on the main rope (9) and the secondary rope (10).

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