A metrological testing device for quality supervision of water conservancy projects

Abstract

This invention discloses a metrological testing device for quality supervision of water conservancy projects, relating to the field of water conservancy engineering technology. It includes a hull, with a detection sensor installed on the inner side of the hull. A rotating disk is rotatably connected to the inner side of the hull, and multiple sampling cylinders are movably connected to the inner side of the rotating disk. A cylinder is installed on the inner side of the hull. A self-sealing assembly is provided on the sampling cylinder. The self-sealing assembly includes a second circular plate slidably disposed on the outer side of the sampling cylinder, airbags symmetrically installed on the outer side of the sampling cylinder, and an air supply unit for airbag inflation on the sampling cylinder. By setting up the self-sealing assembly, during the up-and-down movement of the sampling cylinder, the second circular plate automatically releases and blocks the sampling slot. Simultaneously, it realizes automatic air extraction and inflation of the airbags before and after sampling. The inflation of the airbags seals the sampling slot, ensuring that the sample is uncontaminated.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, and in particular to a metrological testing device for quality supervision of water conservancy projects. Background Technology

[0002] Measurement and testing devices used for quality supervision of water conservancy projects are equipment used to accurately and objectively evaluate the quality of engineering construction and ensure that the construction quality of water conservancy facilities such as dams, dikes, and sluices meets the standards. Among them, unmanned survey vessels are important equipment for underwater detection in the quality supervision of water conservancy projects. Unmanned survey vessels can navigate automatically and carry equipment such as sonar to complete underwater topographic mapping and river cross-section measurement. They are particularly suitable for complex or dangerous aquatic environments, and can also collect samples for onshore testing in complex water quality environments, and can efficiently acquire underwater data.

[0003] Most existing unmanned surface vessels (USVs) are designed for single-sampling operations. After sampling at one location, the vessel needs to be retrieved to replace the sampling bottle or empty the water tank, making continuous multi-point operations impossible. Furthermore, the bottle openings are open after sampling, making them susceptible to contamination and affecting the testing work. Additionally, the sampling tube is directly inserted into the water, and when sampling in waters with debris, the water pipe can easily suck in aquatic plants, garbage, and other debris, causing blockages and affecting the normal progress of the sampling work. Therefore, a metrological testing device for quality supervision of water conservancy projects is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the inability to perform continuous multi-point operations, the open bottle opening after sampling making it susceptible to contamination and affecting the testing work, and the direct insertion of the sampling tube into the water, which can easily cause blockages when sampling in waters containing debris, as the water pipe can be directly sucked into the water pipe or pump. Therefore, this invention proposes a metrological testing device for quality supervision of water conservancy projects.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A metrological testing device for quality supervision of water conservancy projects includes a hull. A detection sensor is installed on the inner side of the hull. A rotating disk is rotatably connected to the inner side of the hull, and multiple sampling tubes are movably connected to the inner side of the rotating disk. The multiple sampling tubes enable automatic switching of sampling positions, allowing continuous sampling at multiple points in a single descent. A cylinder is installed on the inner side of the hull. A self-sealing assembly is provided on each sampling tube. The self-sealing assembly includes a second circular plate slidably disposed on the outer side of the sampling tube, airbags symmetrically mounted on the outer side of the sampling tube, and an air supply unit for airbag inflation on the sampling tube. Multiple sampling slots are formed on the outer side of the sampling tube. After sampling, the second circular plate moves. The sampling trough is blocked, and the airbag is inflated by the air supply unit to squeeze the second circular plate. The second circular plate automatically releases and blocks the sampling trough. At the same time, the airbag is automatically deflated and inflated before and after sampling. The expansion of the airbag seals the sampling trough to ensure that the sample is not contaminated. A sieve cylinder is rotatably connected to the bottom of the hull. Multiple push plates are installed on the outside of the sieve cylinder. The cylinder is connected to the sieve cylinder by transmission. When the output end of the cylinder pushes the sampling cylinder down, it drives the sieve cylinder and the push plates to rotate. When the push plates rotate, they generate agitation in the water, actively pushing away or stirring away aquatic plants, garbage and other debris around the sampling cylinder, improving the sampling success rate in waters with a lot of garbage and dense aquatic plants.

[0006] The above technical solution further includes: A drive device is installed on the inner side of the hull. The output end of the drive device is fixedly connected to the rotating disk. Multiple first circular grooves are opened on the inner side of the rotating disk, and a second circular groove is opened on the bottom of the hull. The size of the openings of the first and second circular grooves are adapted to the size of the sampling tubes. The drive device drives the multiple sampling tubes on the rotating disk to rotate and perform multi-point sampling.

[0007] The upper part of the rotating disk is equipped with a plurality of first telescopic rods, and the upper ends of two adjacent first telescopic rods are jointly equipped with a first circular plate.

[0008] The upper part of the collection tube is provided with a square groove, and the size of the opening of the square groove is adapted to the size of the output end of the cylinder.

[0009] A connecting rod is installed at the output end of the cylinder, and a round rod is rotatably connected to the end of the connecting rod. A rotating rod is rotatably connected to the inner side of the hull. A guide groove is opened on the inner side of the rotating rod. The guide groove is movably connected to the round rod. The rotating rod rotates by the guiding action of the round rod on the guide groove.

[0010] A first friction wheel is installed at the end of the rotating rod, and a second friction wheel is installed on the outside of the screen cylinder. The second friction wheel is in contact with the first friction wheel. After the rotating rod rotates, it drives the screen cylinder to rotate through the friction of the first friction wheel and the second friction wheel.

[0011] The outer side of the collection tube is symmetrically equipped with second telescopic rods, and the ends of the two second telescopic rods are fixedly connected to the second circular plate.

[0012] The gas supply unit includes a connecting plate installed on the outside of the collection cylinder, a gas delivery cylinder installed at the end of the connecting plate, a piston slidably disposed on the inside of the gas delivery cylinder, a movable rod installed at the upper end of the piston, a connecting pipe installed on the outside of the gas delivery cylinder, and a connecting pipe fixedly connected to the collection cylinder at the end of the connecting pipe away from the gas delivery cylinder. The connecting pipe communicates with the air bladder. After the piston moves down, the gas inside the gas delivery cylinder is transmitted to the air bladder through the connecting pipe and inflates it.

[0013] A spring is installed at the bottom of the piston, and the bottom of the spring is fixedly connected to the bottom of the air delivery cylinder.

[0014] The movable rod is positioned on the trajectory of the second circular plate.

[0015] The present invention has the following beneficial effects: 1. In this invention, multiple sampling tubes are used to achieve automatic switching of sampling positions. Multiple sampling points can be continuously sampled in one descent. By setting a self-sealing component, the second circular plate automatically releases and blocks the sampling slot during the up-and-down movement of the sampling tube. At the same time, the airbag is automatically evacuated and inflated before and after sampling. The expansion of the airbag seals the sampling slot, ensuring that the sample is uncontaminated.

[0016] 2. In this invention, when the cylinder pushes the collection tube downward, it drives multiple push plates on the screen tube to rotate. When the push plates rotate, they generate agitated water flow in the water, actively pushing away or stirring away aquatic plants, garbage and other debris around the collection tube, thereby improving the success rate of sampling in waters with a lot of garbage and dense aquatic plants. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a metering and testing device for quality supervision of water conservancy projects proposed in this invention; Figure 2 This is a schematic diagram of the side cross-sectional structure of the nozzle in this invention; Figure 3 This is a schematic diagram of the bottom cross-sectional structure of the nozzle in this invention; Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B; Figure 6 for Figure 3 Enlarged schematic diagram of the structure at point C.

[0018] In the diagram: 1. Hull; 2. Detection sensor; 3. Rotating disk; 4. First circular groove; 5. Second circular groove; 6. Drive device; 7. Cylinder; 8. First telescopic rod; 9. First circular plate; 10. Collection cylinder; 11. Square groove; 12. Connecting rod; 13. Rotating rod; 14. Guide groove; 15. Round rod; 16. Screen cylinder; 17. Push plate; 18. First friction wheel; 19. Second friction wheel; 20. Collection groove; 21. Second telescopic rod; 22. Second circular plate; 23. Airbag; 24. Connecting plate; 25. Air supply cylinder; 26. Spring; 27. Piston; 28. Movable rod; 29. ​​Connecting pipe. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1 like Figure 1 - Figure 6 As shown, the present invention proposes a metrological testing device for quality supervision of water conservancy projects, comprising a hull 1, a detection sensor 2 installed on the inner side of the hull 1, a rotating disk 3 rotatably connected to the inner side of the hull 1, and multiple sampling tubes 10 movably connected to the inner side of the rotating disk 3. The multiple sampling tubes 10 enable automatic switching of sampling positions, allowing continuous sampling at multiple points in a single descent. A cylinder 7 is installed on the inner side of the hull 1. A self-sealing assembly is provided on the sampling tubes 10, comprising a second circular plate 22 slidably disposed on the outer side of the sampling tube 10, airbags 23 symmetrically mounted on the outer side of the sampling tube 10, and an air supply unit for inflating the airbags 23 on the sampling tube 10. Multiple sampling slots 20 are formed on the outer side of the sampling tube 10. After sampling, the second circular plate 22 moves to cover the sampling tube 10. The sampling trough 20 is blocked, and the airbag 23 is inflated by the air supply unit to squeeze the second circular plate 22. The second circular plate 22 automatically releases and blocks the sampling trough 20. At the same time, the airbag 23 is automatically evacuated and inflated before and after sampling. The expansion of the airbag 23 seals the sampling trough 20 to ensure that the sample is not contaminated. The bottom of the hull 1 is rotatably connected to the sieve cylinder 16. Multiple push plates 17 are installed on the outside of the sieve cylinder 16. The cylinder 7 is connected to the sieve cylinder 16 by transmission. When the output end of the cylinder 7 pushes the sampling cylinder 10 down, it drives the sieve cylinder 16 and the push plates 17 to rotate. When the push plates 17 rotate, they generate agitation in the water, actively pushing away or stirring away the water plants, garbage and other debris around the sampling cylinder, improving the success rate of sampling in waters with a lot of garbage and dense water plants.

[0021] A drive device 6 is installed on the inner side of the hull 1. The output end of the drive device 6 is fixedly connected to the rotating disk 3. Multiple first circular grooves 4 are opened on the inner side of the rotating disk 3, and a second circular groove 5 is opened on the bottom of the hull 1. The size of the openings of the first circular grooves 4 and the second circular grooves 5 are adapted to the size of the sampling tubes 10. The drive device 6 drives the multiple sampling tubes 10 on the rotating disk 3 to rotate and perform multi-point sampling.

[0022] Multiple first telescopic rods 8 are installed on the upper part of the rotating disk 3, and a first circular plate 9 is installed on the upper end of two adjacent first telescopic rods 8.

[0023] A square groove 11 is provided on the upper part of the collection tube 10, and the size of the opening of the square groove 11 is adapted to the size of the output end of the cylinder 7.

[0024] The outer side of the collection tube 10 is symmetrically equipped with second telescopic rods 21, and the ends of the two second telescopic rods 21 are fixedly connected to the second circular plate 22.

[0025] The gas supply unit includes a connecting plate 24 installed on the outside of the collection cylinder 10, a gas delivery cylinder 25 installed at the end of the connecting plate 24, a piston 27 slidably arranged on the inside of the gas delivery cylinder 25, a movable rod 28 installed at the upper end of the piston 27, a connecting pipe 29 installed on the outside of the gas delivery cylinder 25, and a fixed connection between the end of the connecting pipe 29 away from the gas delivery cylinder 25 and the collection cylinder 10. The connecting pipe 29 is in communication with the air bag 23. After the piston 27 moves down, the gas inside the gas delivery cylinder 25 is transmitted to the air bag 23 through the connecting pipe 29 and inflates it.

[0026] A spring 26 is installed at the bottom of the piston 27, and the bottom of the spring 26 is fixedly connected to the bottom of the air supply cylinder 25.

[0027] The movable rod 28 is positioned on the trajectory of the second circular plate 22.

[0028] In this embodiment, when river detection is required, the hull 1 is placed in the river. While moving through the river, the underwater topography is mapped and the river cross-section is measured using the detection sensor 2. Simultaneously, water flow samples are collected to detect complex components in the water flow. When the hull 1 moves to a set position, cylinder 7 is activated. The output end of cylinder 7 moves downwards and inserts into the inner side of the square groove 11, then drives the collection cylinder 10 downwards. The collection cylinder 10 passes through the first circular groove 4 and the second circular groove 5 and moves to the bottom of the hull 1. At this time, the first telescopic rod 8 retracts, and the second circular plate 22 moves upwards under the pressure of the rotating disk 3, exposing multiple airbags 23. Water flow samples are collected through the airbags 23. At this time, the second telescopic rod 21 retracts, and the second circular plate 22 moves upwards, pushing the movable rod 28. The movable rod 28 drives the piston 27 upwards, at which time the spring 26 stretches. When the piston 27 moves upwards, it draws gas from the airbags 23 through the connecting pipe 29 to the inner side of the air delivery cylinder 25. At this time, the airbags 23 no longer inflate and are no longer connected to the collection cylinder. When the collection cylinder 10 is at the same horizontal plane, after the collection cylinder 10 has finished collecting the sample, the output end of the cylinder 7 retracts, and the first telescopic rod 8, which is in the retracted state, resets. At the same time, the collection cylinder 10 is driven to move upward through the first circular plate 9. After the collection cylinder 10 moves upward, it no longer squeezes the second circular plate 22 through the rotating disk 3. The second telescopic rod 21, which is in the retracted state, resets and blocks the airbag 23. When the second circular plate 22 resets, it no longer squeezes. The spring 26, which is in the stretched state, resets and drives the piston 27 to move downward. After the piston 27 moves downward, the gas inside the gas delivery cylinder 25 is transmitted to the airbag 23 through the connecting pipe 29, causing the airbag 23 to inflate. After the airbag 23 inflates, it contacts the second circular plate 22, thereby sealing the airbag 23. When collecting the sample at the next location, the drive device 6 is started. The drive device 6 drives the rotating disk 3 to rotate. When the rotating disk 3 rotates, it drives another collection cylinder 10 to align with the position of the second circular groove 5. Then, the cylinder 7 moves downward to push the collection cylinder 10 to continue sampling.

[0029] Example 2 like Figure 1 - Figure 6 As shown, based on Embodiment 1, a connecting rod 12 is installed at the output end of the cylinder 7, and a round rod 15 is rotatably connected to the end of the connecting rod 12. A rotating rod 13 is rotatably connected to the inner side of the hull 1. A guide groove 14 is opened on the inner side of the rotating rod 13. The guide groove 14 is movably connected to the round rod 15. The rotating rod 13 is driven to rotate by the guiding effect of the round rod 15 on the guide groove 14.

[0030] A first friction wheel 18 is installed at the end of the rotating rod 13, and a second friction wheel 19 is installed on the outside of the screen cylinder 16. The second friction wheel 19 is in contact with the first friction wheel 18. After the rotating rod 13 rotates, it drives the screen cylinder 16 to rotate through the friction of the first friction wheel 18 and the second friction wheel 19.

[0031] In this embodiment, when the cylinder 7 pushes the collection cylinder 10 downward, it simultaneously drives the connecting rod 12 and the round rod 15 downward. When the round rod 15 moves downward, it slides inside the guide groove 14. The guide effect of the round rod 15 on the guide groove 14 drives the rotating rod 13 to rotate. After the rotating rod 13 rotates, it drives the screen cylinder 16 to rotate through the friction of the first friction wheel 18 and the second friction wheel 19. When the screen cylinder 16 rotates, it drives multiple push plates 17 to rotate. The force generated by the rotation of the push plates 17 drives the debris around the screen cylinder 16 to move, so as to avoid the collection cylinder 10 being blocked by debris during collection and affecting the collection work.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metrological testing device for quality supervision of water conservancy projects, comprising a hull (1), characterized in that, A detection sensor (2) is installed on the inner side of the hull (1). A rotating disk (3) is rotatably connected to the inner side of the hull (1). Multiple collection cylinders (10) are movably connected to the inner side of the rotating disk (3). A cylinder (7) is installed on the inner side of the hull (1). A self-sealing assembly is provided on the collection cylinder (10). The self-sealing assembly includes a second circular plate (22) slidably disposed on the outer side of the collection cylinder (10), airbags (23) symmetrically disposed on the outer side of the collection cylinder (10), and an air supply unit for inflating the airbags (23) provided on the collection cylinder (10). Multiple collection slots (20) are provided on the outer side of the collection tube (10). After the collection tube (10) samples, the second circular plate (22) moves to block the collection slots (20), and the air bag (23) is expanded and squeezed by the air supply unit. A sieve tube (16) is rotatably connected to the bottom of the hull (1). Multiple push plates (17) are installed on the outer side of the sieve tube (16). The cylinder (7) is connected to the sieve tube (16) by transmission. When the output end of the cylinder (7) pushes the collection tube (10) to move down, it drives the sieve tube (16) and the push plate (17) to rotate.

2. The metering and testing device for quality supervision of water conservancy projects according to claim 1, characterized in that, A drive device (6) is installed on the inner side of the hull (1). The output end of the drive device (6) is fixedly connected to the rotating disk (3). Multiple first circular grooves (4) are opened on the inner side of the rotating disk (3). A second circular groove (5) is opened on the bottom of the hull (1). The size of the openings of the first circular groove (4) and the second circular groove (5) are adapted to the size of the collection tube (10).

3. The metering and testing device for quality supervision of water conservancy projects according to claim 1, characterized in that, The upper part of the rotating disk (3) is equipped with a plurality of first telescopic rods (8), and the upper ends of two adjacent first telescopic rods (8) are jointly equipped with a first circular plate (9).

4. The metering and testing device for quality supervision of water conservancy projects according to claim 1, characterized in that, The upper part of the collection tube (10) is provided with a square groove (11), and the size of the opening of the square groove (11) is adapted to the size of the output end of the cylinder (7).

5. A metrological testing device for quality supervision of water conservancy projects according to claim 4, characterized in that, A connecting rod (12) is installed at the output end of the cylinder (7). A round rod (15) is rotatably connected to the end of the connecting rod (12). A rotating rod (13) is rotatably connected to the inner side of the hull (1). A guide groove (14) is provided on the inner side of the rotating rod (13). The guide groove (14) is movably connected to the round rod (15).

6. A metering and testing device for quality supervision of water conservancy projects according to claim 5, characterized in that, The end of the rotating rod (13) is equipped with a first friction wheel (18), and the outside of the screen cylinder (16) is equipped with a second friction wheel (19), which is in contact with the first friction wheel (18).

7. A metrological testing device for quality supervision of water conservancy projects according to claim 1, characterized in that, The outer side of the collection tube (10) is symmetrically equipped with second telescopic rods (21), and the ends of the two second telescopic rods (21) are fixedly connected to the second circular plate (22).

8. A metering and testing device for quality supervision of water conservancy projects according to claim 1, characterized in that, The gas supply unit includes a collection cylinder (10) with a connecting plate (24) installed on the outside. The end of the connecting plate (24) is equipped with a gas delivery cylinder (25). A piston (27) is slidably arranged on the inside of the gas delivery cylinder (25). A movable rod (28) is installed on the upper end of the piston (27). A connecting pipe (29) is installed on the outside of the gas delivery cylinder (25). The end of the connecting pipe (29) away from the gas delivery cylinder (25) is fixedly connected to the collection cylinder (10). The connecting pipe (29) is in communication with the air bag (23).

9. A metrological testing device for quality supervision of water conservancy projects according to claim 8, characterized in that, A spring (26) is installed at the bottom of the piston (27), and the bottom of the spring (26) is fixedly connected to the bottom of the air delivery cylinder (25).

10. A metrological testing device for quality supervision of water conservancy projects according to claim 8, characterized in that, The movable rod (28) is positioned on the trajectory of the second circular plate (22).

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