A water conservancy project water sample collection device

Abstract

The utility model provides a water conservancy project water sample collection device, including the floating plate, the top of floating plate is equipped with the mounting hole, and is connected with the outer tube coaxially in the bottom of mounting hole, the lower end inner wall of outer tube is connected with the annular seat coaxially, and the inner tube that extends upwards is fastened on the inner wall of annular seat, the outer wall of inner tube is detachably connected with the sampling tube, and the outer wall of outer tube is detachably connected with the connecting pipe, the bottom of connecting pipe is connected with the hemispherical counterweight coaxially, and a plurality of water leakage holes are formed on the outer wall of connecting pipe, the top of inner tube is rotatably connected with the sealing plate, and the diameter of sealing plate is greater than the inner diameter of inner tube. The utility model discloses under the action of gravity, can drive device to sink to water sample, under the action of water pressure, can produce the thrust to sealing plate, and water sample can flow into the sampling tube, and the device is inverted and rotates the sampling tube and separates it from the device, can collect water sample, and brings great convenience to sampling operation.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, specifically to a water sample collection device for water conservancy projects. Background Technology

[0002] When carrying out water conservancy projects, it is necessary to collect water samples from the water body. This is an important part of water quality monitoring, environmental assessment and water resource management. By collecting water samples, we can analyze the physical, chemical and biological indicators of the water body, assess the safety and suitability of the water quality, identify and monitor pollutants in the water body and their concentration changes, and help assess the health status of the aquatic ecosystem.

[0003] Existing patent document CN213516443U, entitled "A Water Sampling Device," discloses that when collecting water samples, the user needs to use a rope to shake the bucket to tip it over after placing it on the water surface, thus increasing sampling time and affecting work efficiency. Therefore, we propose a water sampling device for water conservancy projects. Utility Model Content

[0004] To address the shortcomings of existing water sampling methods, where users need to shake the bucket with a rope to tip it over when it is placed on the water surface, thus increasing sampling time and affecting work efficiency, this utility model provides a water sampling device for water conservancy projects. It has the advantages of simple structure and easy and rapid sampling operation, thus solving the problems mentioned in the background art.

[0005] The technical solution of this utility model is implemented as follows: A water sample collection device for water conservancy projects includes a float plate, an installation hole is opened at the top of the float plate, and an outer tube is coaxially connected to the bottom of the installation hole. An annular seat is coaxially connected to the inner wall of the lower end of the outer tube, and an upwardly extending inner tube is tightly attached to the inner wall of the annular seat. A sampling tube is detachably connected to the outer wall of the inner tube, and a connecting tube is detachably connected to the outer wall of the outer tube. A hemispherical counterweight is coaxially connected to the bottom of the connecting tube, and multiple leakage holes are opened on the outer wall of the connecting tube. A sealing plate is rotatably connected to the top of the inner tube, and the diameter of the sealing plate is larger than the inner diameter of the inner tube.

[0006] Optionally, the upper end of the inner wall of the connecting pipe and the upper end of the outer wall of the outer pipe are threaded together.

[0007] Optionally, the opening of the sampling tube and the outer wall of the inner tube are connected by threads.

[0008] Optionally, a U-shaped seat is fastened to the top of the inner tube, and a connecting block is fastened to the edge of the sealing plate, thereby rotating the connecting block and the U-shaped seat together.

[0009] Optionally, a limiting plate is fastened to the top of the U-shaped seat on the side away from the connecting block, and the limiting plate is located above the end of the connecting block.

[0010] Optionally, the bottom of the float may be secured with a foam board.

[0011] Optionally, handles are symmetrically provided on the top of the float, and the ends of the handles are connected to the float via hinge seats.

[0012] Optionally, a through hole may be provided on the handle.

[0013] Optionally, the outer wall of the sampling tube is provided with graduations.

[0014] Compared with existing technologies, this invention uses a hemispherical counterweight to sink the device into the water sample under the action of gravity. The water sample flows into the connecting pipe through multiple leakage holes, and under the action of water pressure, it can generate a pushing force on the sealing plate, allowing the water sample to flow into the sampling tube. When the device is removed from the water sample, the water sample in the sampling tube can exert downward pressure on the sealing plate, preventing the water sample from flowing out. By inverting the device and rotating the sampling tube to separate it from the device, the water sample can be collected. This invention not only has a simple structure but also brings great convenience to the sampling operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0017] Figure 2 This is an exploded view of the present invention.

[0018] Figure 3 This is an exploded cross-sectional view of the present invention.

[0019] Figure 4 This is a cross-sectional view of the connection between the outer tube, the annular seat, and the inner tube of this utility model.

[0020] Figure 5 This is a connection diagram of the sealing plate and the U-shaped seat of this utility model.

[0021] In the diagram: 1. Hinge seat; 2. Through hole; 3. Handle; 4. Scale; 5. Sampling tube; 6. Mounting hole; 7. Float plate; 8. Leakage hole; 9. Connecting pipe; 10. Hemispherical counterweight; 11. Foam board; 12. Outer tube; 13. Ring seat; 14. Inner tube; 15. Sealing plate; 16. Connecting block; 17. U-shaped seat; 18. Limiting plate. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figures 1 to 5 This utility model provides a technical solution: a water sampling device for hydraulic engineering, including a float 7. To improve the overall buoyancy of the device and ensure its stable floating on the water surface, a foam board 11 is tightly attached to the bottom of the float 7, greatly facilitating the sampling work for operators. Simultaneously, to facilitate the connection of the device to ropes, it is convenient to place the device on the water surface for sampling. Figure 1 As shown, handles 3 are symmetrically arranged on the top of the float 7. The end of the handle 3 is connected to the float 7 through the hinge seat 1. The handle 3 has a through hole 2. In actual use, the rope is passed through the through hole 2 on the two handles 3 and the rope is tied tightly, so that the operator can easily throw the device when it is far away from the water source, so as to collect water samples.

[0024] like Figure 3 , 4 As shown, an installation hole 6 is opened at the top of the float plate 7, and an outer tube 12 is coaxially connected to the bottom of the installation hole 6. An annular seat 13 is coaxially connected to the inner wall of the lower end of the outer tube 12, and an upwardly extending inner tube 14 is tightly fastened to the inner wall of the annular seat 13. A sampling tube 5 is detachably connected to the outer wall of the inner tube 14. The opening of the sampling tube 5 is connected to the outer wall of the inner tube 14 by a thread. A connecting tube 9 is detachably connected to the outer wall of the outer tube 12. The upper end of the inner wall of the connecting tube 9 is threadedly connected to the upper end of the outer wall of the outer tube 12. A hemispherical counterweight 10 is coaxially connected to the bottom of the connecting tube 9, and multiple water leakage holes 8 are opened on the outer wall of the connecting tube 9.

[0025] In actual use, after the device is placed at the water sample location, the bottom of the device will always be in contact with the water sample and sink under the action of the hemispherical counterweight 10. Under the buoyancy of the float plate 7 and the foam board 11, the device will always be in contact with the water sample. At the same time, in order to facilitate the operator to determine the volume of the sample, a scale 4 is set on the outer wall of the sampling tube 5. Meanwhile, the water leakage hole 8 set on the outer wall of the connecting pipe 9 can filter out aquatic plants and other substances in the water sample, thereby ensuring that the device can perform normal sampling.

[0026] In summary, when using the water sampling device for this water conservancy project, if... Figure 3 , 4As shown in Figure 5, a sealing plate 15 is rotatably connected to the top of the inner tube 14. The diameter of the sealing plate 15 is larger than the inner diameter of the inner tube 14. A U-shaped seat 17 is tightly fastened to the top of the inner tube 14, and a connecting block 16 is fastened to the edge of the sealing plate 15. The connecting block 16 and the U-shaped seat 17 are rotatably connected. When the device is placed in the water sample, the hemispherical counterweight 10 sinks into the water sample under the action of gravity. The water sample flows into the connecting pipe 9 through multiple water leakage holes 8. Under the action of water pressure, it can generate a thrust on the sealing plate 15, and the water sample can flow into the sampling pipe 5. When the device is taken out of the water sample, the water sample in the sampling pipe 5 can generate downward pressure on the sealing plate 15, so that the sealing plate 15 can seal the top of the inner tube 14.

[0027] Meanwhile, to prevent the sealing plate 15 from flipping at a large angle and to allow the sealing plate 15 to rotate normally inside the sampling tube 5, a limiting plate 18 is fastened to the top of the U-shaped seat 17 on the side away from the connecting block 16, and the limiting plate 18 is located above the end of the connecting block 16. When the sealing plate 15 seals the top of the inner tube 14, the water sample in the sampling tube 5 is prevented from flowing out, thus ensuring normal sampling operation. After retrieving the device from the sampling water area, the device is inverted and the sampling tube 5 is rotated to remove it, and the water sample can be collected. This utility model not only has a simple structure and facilitates the operator to perform rapid sampling, but also brings great convenience to the operator and improves the sampling efficiency.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water sample collection device for a water conservancy project, comprising a float (7), characterized in that, An installation hole (6) is made at the top of the float (7), and an outer tube (12) is coaxially connected to the bottom of the installation hole (6). An annular seat (13) is coaxially connected to the inner wall of the lower end of the outer tube (12), and an upwardly extending inner tube (14) is tightly fastened to the inner wall of the annular seat (13). A sampling tube (5) is detachably connected to the outer wall of the inner tube (14), and a connecting tube (9) is detachably connected to the outer wall of the outer tube (12). A hemispherical counterweight (10) is coaxially connected to the bottom of the connecting tube (9), and multiple water leakage holes (8) are opened on the outer wall of the connecting tube (9). A sealing plate (15) is rotatably connected to the top of the inner tube (14), and the diameter of the sealing plate (15) is larger than the inner diameter of the inner tube (14).

2. The water sampling device for water conservancy projects as described in claim 1, characterized in that, The upper end of the inner wall of the connecting pipe (9) and the upper end of the outer wall of the outer pipe (12) are threaded together.

3. The water sampling device for water conservancy projects as described in claim 1, characterized in that, The opening of the sampling tube (5) and the outer wall of the inner tube (14) are connected by threads.

4. The water sampling device for water conservancy projects as described in claim 1, characterized in that, The top of the inner tube (14) is fastened with a U-shaped seat (17), and the connecting block (16) is fastened at the edge of the sealing plate (15), so that the connecting block (16) and the U-shaped seat (17) are rotatably connected.

5. The water sampling device for water conservancy projects as described in claim 4, characterized in that, A limiting plate (18) is fastened to the top of the U-shaped seat (17) on the side away from the connecting block (16), and the limiting plate (18) is located above the end of the connecting block (16).

6. The water sampling device for water conservancy projects as described in any one of claims 1-5, characterized in that, The bottom of the float (7) is tightly fitted with a foam board (11).

7. The water sampling device for water conservancy projects as described in claim 6, characterized in that, The top of the float (7) is symmetrically provided with handles (3), and the ends of the handles (3) are connected to the float (7) through hinge seats (1).

8. The water sampling device for water conservancy projects as described in claim 7, characterized in that, A through hole (2) is provided on the handle (3).

9. The water sampling device for water conservancy projects as described in claim 8, characterized in that, The outer wall of the sampling tube (5) is marked with graduations (4).

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