High dam and deep reservoir water quality monitoring and stratified sampling system based on remote operation submersible

Abstract

The invention relates to a high dam and deep reservoir water quality monitoring and stratified sampling system based on a remote operation submersible. The system comprises a submersible platform and a sampling assembly. According to the sampling system, water is continuously monitored, monitored data are stored and transmitted in real time, unqualified water is subjected to layered collection by arranging a plurality of collection bottle units, the collection bottle units are arranged to be open at the two ends, and sample water is extracted in a piston cylinder sliding mode; when the collection bottle unit floats upwards, the internal pressure is higher than the external pressure, and the bottle plug can slightly slide outwards to remove the pressure difference between the inner side and the outer side of the bottle body, so that the sampling water body can be sealed and stored. And the problems of sealing damage, sealing failure and the like caused by high water pressure are effectively eliminated.

Description

Technical Field

[0001] The present invention belongs to the technical field of water quality monitoring, and particularly relates to a water quality monitoring and layered sampling system for high dams and deep reservoirs based on a remotely operated submersible. Background Art

[0002] Water areas such as rivers, lakes, and reservoirs are facing the pollution pressure of various sewage and need to be monitored and protected. According to the different pollutants, they may exist at different depths in the water body. Therefore, the monitoring of water pollution needs to be sampled layer by layer according to the water level depth.

[0003] Existing layered sampling devices generally enter the water through a submersible, then open the collection bottle to discharge air, inhale the water sample, and then change the depth by controlling the submersible to continue sampling. The above-mentioned submersible can only be applied to water bodies with relatively low water level depths such as rivers and lakes. For high dams and deep reservoirs, their maximum water depth may reach 200 meters or even 300 meters, and the water pressure difference from the water surface is huge. For the sampling component, layered sampling requires frequent opening and closing of valves to collect multiple samples, and the frequent opening and closing of valves are prone to leakage under high pressure differences. Summary of the Invention

[0004] The purpose of the present invention is to provide a water quality monitoring and layered sampling system for high dams and deep reservoirs based on a remotely operated submersible in order to solve the above problems.

[0005] The present invention realizes the above purpose through the following technical solutions:

[0006] A water quality monitoring and layered sampling system for high dams and deep reservoirs based on a remotely operated submersible, including a submersible platform and a sampling component. Among them, the submersible platform is used to carry various components to dive underwater, including a frame, a driving unit, a monitoring module, and a communication module. The sampling component includes a first fixing plate and a second fixing plate, and further includes

[0007] A collection bottle unit: It is arranged on the first fixing plate, including a bottle body with openings at both ends, a piston cylinder arranged inside the bottle body, and the piston cylinder is driven one by one to slide along the inside of the bottle body. A first telescopic pin is arranged on the side wall of the bottle body for locking the piston cylinder;

[0008] A bottle stopper assembly: It includes a bottle stopper and a limiting plate arranged at the tail of the bottle stopper. Among them, the bottle stopper is aligned with the opening at one end of the bottle body. An opening and closing hinge rod is arranged on the second fixing plate for blocking the bottle stopper from entering the opening. A transmission component is arranged on the first fixing plate, which is used to drive the hinge rod to release the limiting plate when the piston cylinder slides to the end.

[0009] As a further optimization scheme of the present invention, the submersible platform also includes a pontoon, and the driving unit includes at least four first driving units for horizontal driving, and at least two second driving units for ascending and diving driving. The first driving units are respectively arranged at the four corners of the frame, and the axial direction of the propeller is distributed at a 45° angle to the frame. The second driving unit is arranged in the middle of the pontoon.

[0010] As a further optimization scheme of the present invention, a control room is arranged on the frame, and a power supply, a control module, a navigation and positioning module are arranged in the control room. A monitoring module and a communication module are arranged in the control room. The probe of the monitoring module extends to the outside of the control room, and the control room resists water pressure by providing a high-strength shell.

[0011] As a further optimization scheme of the present invention, the first fixing plate and the second fixing plate are connected by connecting ribs, and the sampling assembly is connected to the submersible platform by a detachable structure, so as to facilitate its disassembly and assembly with the submersible, and to facilitate the removal of samples and cleaning of the collection bottle unit.

[0012] As a further optimization scheme of the present invention, a mounting groove is provided on the surface of the first fixing plate, and a flange corresponding to the mounting groove is provided on the outer surface of the bottle body, wherein the mounting groove is closed by a detachable buckle plate provided on the first fixing plate. In order to facilitate the installation of the collection bottle unit, the mounting groove is provided on the surface of the first fixing plate so that the bottle body can be moved in the horizontal direction and enter the mounting groove from the opening of the mounting groove, while the flange provided on the outer surface of the bottle body abuts against the upper and lower surfaces of the first fixing plate, and the bottle body is clamped and fixed by installing the buckle plate, and the buckle plate and the first fixing plate can be connected by bolts.

[0013] As a further optimization scheme of the present invention, the transmission component includes a second telescopic pin arranged on the surface of the bottle body, a toggle piece hingedly arranged on the first fixed plate, and a pair of rotating rods connected to the toggle piece, the rotating rod is used to prevent the hinged rod from opening, and the second telescopic pin is squeezed by the piston cylinder and pushes the toggle piece, so that the rotating rod releases the blocking of the hinged rod. Closing the bottle body by the valve will cause the two ends of the valve to be subjected to a large pressure difference. Diving from the water surface or floating from underwater will cause a huge pressure difference on both sides of the valve, and pollutants deposited in the valve will also affect other collected samples. Therefore, this scheme is closed by a bottle stopper, and the bottle stopper is arranged at the bottle mouth. When the piston cylinder sucks in the water sample, the bottle stopper has a tendency to be sucked in, which is restricted by the hinged rod. After the piston cylinder is full of samples, the hinged rod is triggered to open to suck in the bottle stopper, and it is further sucked tightly by negative pressure.

[0014] As a further optimized solution of the present invention, both the second telescopic pin and the first telescopic pin include an angled slider extending into the bottle body, a spring, and a sliding rod. A clamping groove corresponding to the first telescopic pin is provided on the surface of the piston cylinder. This solution specifically proposes a structure of the telescopic pin, which can be adopted for both the second telescopic pin and the first telescopic pin. The telescopic pin maintains a tendency to extend into the bottle body through the spring and slides outwards under the push of the piston cylinder. For the first telescopic pin, it rebounds when aligned with the clamping groove to lock the piston cylinder.

[0015] As a further optimized solution of the present invention, a filling member is provided on the surface of the piston cylinder. In order to prevent samples that are not the collection target from remaining in the bottle body before collection, the special-shaped space at the bottle mouth is filled with the filling member.

[0016] As a further optimized solution of the present invention, the piston cylinders are driven one by one by a driving mechanism. The driving mechanism includes a driving part, a threaded rod provided at the output shaft end of the driving part, an external gear cylinder sleeved on the surface of the threaded rod, a rack extending from the surface of the piston cylinder and passing through the bottle body to mesh with the external gear cylinder. A connecting rod parallel to the threaded rod is also provided on one side of the driving part, and a plurality of hinge members are provided on the surface of the connecting rod. The hinge members are sprung open by an elastic member to unidirectionally block the external gear cylinder. This solution enables the external gear cylinder with an internal threaded structure to have the functions of driving the rack to lift and translating to mesh with the next rack.

[0017] The beneficial effects of the present invention are as follows:

[0018] The present invention continuously monitors the water body, stores and transmits the monitored data in real time. For unqualified water bodies, multiple collection bottle units are set for stratified collection. The collection bottle units are set with openings at both ends, and the sample water body is extracted by the sliding of the piston cylinder, avoiding a large pressure difference on both sides of the piston cylinder. After collection, the bottle plug is inhaled, and the bottle plug is sucked tightly through the pressure difference to complete the sealing of the sample water body. When the collection bottle unit floats, the internal pressure is higher than the external pressure, and the bottle plug can slide outwards slightly to relieve the pressure difference between the inside and outside of the bottle body, effectively eliminating problems such as seal damage and inability to seal caused by high water pressure. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of the present invention;

[0020] Figure 2 is the cross-sectional structural schematic diagram of the present invention;

[0021] Figure 3 is the front view of the sampling assembly of the present invention;

[0022] Figure 4 is the top view of the sampling assembly of the present invention;

[0023] Figure 5 The present invention Figure 3 A magnified view of the structure of part A;

[0024] Figure 6 The present invention Figure 4 A magnified view of the structure of part B;

[0025] Figure 7 The present invention Figure 5 Middle CC view;

[0026] Figure 8 The present invention Figure 5 The structure of part D is enlarged;

[0027] Figure 9 The present invention Figure 5 Middle EE view;

[0028] In the figure: 1. submersible platform; 11. frame; 12. buoyancy box; 13. control room; 14. first drive unit; 15. second drive unit; 2. sampling assembly; 21. first fixing plate; 22. second fixing plate; 23. buckle plate; 24. mounting groove; 3. collection bottle unit; 31. bottle body; 32. flange; 33. piston cylinder; 34. filling piece; 35. slot; 36. second telescopic pin; 37. first telescopic pin; 38. rack; 4. driving mechanism; 41. driving part; 42. threaded rod; 43. outer gear cylinder; 44. connecting rod; 45. hinged member; 46. guide wheel; 5. bottle plug assembly; 51. bottle plug; 52. limit plate; 53. guide member; 54. hinged rod; 55. bending section; 56. rotating rod; 57. toggle member. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0030] Example 1

[0031] like Figures 1-9 As shown, a high dam deep reservoir water quality monitoring and stratified sampling system based on a remotely operated submersible includes a submersible platform 1 and a sampling assembly 2, wherein the submersible platform 1 is used to carry various components and dive underwater, including a frame 11, a drive unit, a monitoring module and a communication module, and the sampling assembly 2 includes a first fixing plate 21 and a second fixing plate 22, and also includes

[0032] Sampling bottle unit 3: It is arranged on the first fixed plate 21 and includes a bottle body 31 with openings at both ends and a piston cylinder 33 arranged inside the bottle body 31. The piston cylinder 33 is driven one by one to slide inside the bottle body 31. A first telescopic pin 36 is arranged on the side wall of the bottle body 31 for locking the piston cylinder 33;

[0033] Cork assembly 5: It includes a cork 51 and a limiting plate 52 arranged at the tail of the cork 51. Among them, the cork 51 is aligned with the opening at one end of the bottle body 31. An opening and closing hinge rod 54 is arranged on the second fixed plate 22 for blocking the cork 51 from entering the opening. A transmission component is arranged on the first fixed plate 21, which is used to drive the hinge rod 54 to release the limiting plate 52 when the piston cylinder 33 slides to the end.

[0034] In this solution, multiple sampling bottle units 3 are set for layered sampling. The sampling bottle units 3 are set with openings at both ends, and the piston cylinder 33 is used to slide to extract the sample water body, avoiding a huge pressure difference on both sides of the piston cylinder 33. After the sampling is completed, the cork 51 is inhaled, and the cork 51 is sucked tightly through the pressure difference to complete the sealing of the sample water body. When the sampling bottle unit 3 floats, the internal pressure is higher than the external pressure, and the cork 51 can slide out slightly to relieve the pressure difference between the inside and outside of the bottle body 31, effectively eliminating problems such as seal damage and inability to seal caused by high water pressure.

[0035] The submersible platform 1 also includes a floating box 12. The driving unit includes at least four first driving units 14 for horizontal driving and at least two second driving units 15 for ascending and descending driving. The first driving units 14 are respectively arranged at the four corners of the frame 11, and the axial direction of the propellers is distributed at a 45° angle with the frame. The second driving units 15 are arranged in the middle of the floating box 12.

[0036] A control room 13 is arranged on the frame 11. A power supply, a control module, a navigation and positioning module are arranged inside the control room 13. The monitoring module and the communication module are both arranged inside the control room 13. The probe of the monitoring module extends outside the control room 13. The control room 13 resists water pressure by setting a high-strength shell to protect each internal component and facilitate remote operation. Among them, the water quality monitoring indicators at least include pH, water temperature, water depth, pressure, conductivity, dissolved oxygen, and chlorophyll a concentration, and the monitoring module also has a storage module for storing and recording the monitoring data and transmitting it in real time through the communication module.

[0037] The first fixed plate 21 and the second fixed plate 22 are connected by connecting ribs, and the sampling assembly 2 is connected to the submersible platform 1 through a detachable structure, which is convenient for disassembling and assembling with the submersible platform 1, and is also convenient for removing the sample and cleaning the sampling bottle unit 3.

[0038] The surface of the first fixing plate 21 is provided with an installation groove 24, and the outer surface of the bottle body 31 is provided with a flange 32 corresponding to the installation groove 24. Among them, the installation groove 24 is closed by a detachable buckle plate 23 arranged on the first fixing plate 21. In order to facilitate the installation of the sampling bottle unit 3, an installation groove 24 is opened on the surface of the first fixing plate 21. As Figure 4 shown, the bottle body 31 moves horizontally and enters the installation groove 24 from the opening of the installation groove 24, and the flange 32 provided on the outer surface of the bottle body 31 abuts against the upper and lower surfaces of the first fixing plate 21. The bottle body 31 is clamped and fixed by the installation buckle plate 23, and the buckle plate 31 and the first fixing plate 21 can be connected by bolts.

[0039] The transmission component includes a second expansion pin 37 arranged on the surface of the bottle body 31, a toggle member 57 hinged on the first fixing plate 21, and a pair of rotating rods 56 connected to the toggle member 57. The rotating rod 56 is used to block the opening of the hinge rod 54. After the second expansion pin 37 is squeezed by the piston cylinder 33, it pushes the toggle member 57, so that the rotating rod 56 releases the block on the hinge rod 54. Closing the bottle body 31 through the valve will cause a large pressure difference at both ends of the valve. Diving or surfacing from underwater will cause a huge pressure difference on both sides of the valve, and the deposition of pollutants in the valve will also affect other collected samples. Therefore, in this solution, the bottle is closed by a bottle stopper 51. The bottle stopper 51 is arranged at the bottle mouth. When the piston cylinder 33 sucks in the water sample, the bottle stopper 51 has a tendency to be sucked in and is restricted by the hinge rod 54. After the piston cylinder 33 is full of the sample, triggering the opening of the hinge rod 54 can suck in the bottle stopper 51 and further suck it tightly by negative pressure. In order to enable the bottle stopper 51 to slide up and down automatically, a guide member 53 is arranged at the bottom of the bottle stopper 51, and the guide member 53 is slidably connected to the second fixing plate 22.

[0040] Specifically, as Figure 5 and Figure 9 shown, when the second expansion pin 37 is pushed, the toggle member 57 drives the rotating rod 56 to rotate counterclockwise ( Figure 5 viewpoint), and the rotating rod 56 rotates. As Figure 9 shown, a bent section 55 is arranged on the hinge rod 54. When the rotating rod 56 rotates to the bent section 55, it no longer blocks the opening of the hinge rod 54. The opening process of the hinge rod 54 can be achieved by adding a torsion spring to the shaft of the hinge rod 54 or setting a slope on the contact plane between the hinge rod 54 and the limiting plate 52. In order to prevent the water flow from causing the rotating rod 56 to accidentally touch and rotate, a torsion spring can also be applied to the rotating rod 56 so that it presses against the second expansion pin 37.

[0041] Both the second telescopic pin 37 and the first telescopic pin 36 include an angled slider, a spring, and a sliding rod that extend into the bottle body 31. A clamping groove 35 corresponding to the first telescopic pin 36 is formed on the surface of the piston cylinder 33. This solution specifically proposes a structure of the telescopic pin, which can be adopted by both the second telescopic pin 37 and the first telescopic pin 36. The telescopic pin tends to extend into the bottle body 31 by the spring and slides outwards under the push of the piston cylinder 33. For the first telescopic pin 36, when it aligns with the clamping groove 35, it rebounds and locks the piston cylinder 33. The first telescopic pins 36 are preferably arranged as a pair that are symmetrical to each other.

[0042] A filling member 34 is arranged on the surface of the piston cylinder 33. In order to prevent samples that are not the collection target from remaining in the bottle body 31 before collection, the special-shaped space at the bottle mouth is filled with the filling member 34.

[0043] The piston cylinder 33 is driven one by one by a driving mechanism 4. The driving mechanism 4 includes a driving part 41, a threaded rod 42 arranged at the output shaft end of the driving part 41, an external gear cylinder 43 sleeved on the surface of the threaded rod 42. A rack 38 extends from the surface of the piston cylinder 33, passes through the bottle body 31 and meshes with the external gear cylinder 43. A connecting rod 44 parallel to the threaded rod 42 is also arranged on one side of the driving part 41. A plurality of hinge parts 45 are arranged on the surface of the connecting rod 44. The hinge parts 45 are sprung open by an elastic member to unidirectionally block the external gear cylinder 43. By arranging the external gear cylinder 43 with a threaded structure inside in this solution, the external gear cylinder 43 has the functions of driving the rack 38 to lift and translating to mesh with the next rack 38.

[0044] Specifically, as Figure 4 and Figure 6 shown, when the driving part 41 rotates, the threaded rod 42 drives the external gear cylinder 43 to slide to the left. Since the external gear cylinder 43 is blocked and limited by the hinge part 45, it rotates self - driven, and then drives the rack 38 to rise. The friction between the external gear cylinder 43 and the hinge part 45 is relatively large. A guide wheel 46 can be arranged on the hinge part 45. On the contrary, when the piston cylinder 33 is locked by the first telescopic pin 36, the rack 38 is also locked. The driving part 41 rotates in the reverse direction to make the external gear cylinder 43 move towards the next rack 38. Among them, in order to limit the self - rotation of the external gear cylinder 43, the external gear cylinder 43 must mesh with the next rack 38 before disengaging from the previous rack 38. Until the rack 38 passes over the corresponding hinge part 45, the driving part 41 rotates in the reverse direction again. The external gear cylinder 43 abuts against the hinge part 45 and then rotates self - driven to drive the rack 38 to move upwards. It should be noted that the pitch of the threaded rod 42 needs to be kept at a moderate level so that it does not have the function of screw self - locking, in order to have the ability to drive the external gear cylinder 43 to rotate self - driven when the external gear cylinder 43 is restricted from sliding by the hinge part 45.

[0045] The specific implementation method is as follows: Install the sampling bottle unit 3 on the first fixing plate 21, reset the bottle stopper assembly 5, then install the sampling assembly 2 on the submersible platform 1. The submersible platform 1 is remotely operated to dive into the water. During sampling, the rack 38 is lifted by the driving mechanism 4, and the water sample is sucked into the bottle body 31 by the piston cylinder 33. Then, the piston cylinder 33 first touches the second expansion pin 37 to make the bottle stopper 51 lose its limit. The bottle stopper 51 is sucked into the bottom opening of the bottle body 31 along with the water flow at the bottom of the bottle body 31. The piston cylinder 33 continues to move upward to tightly suck the bottle stopper 51. Then, the card slot 35 of the piston cylinder 33 aligns with the first expansion pin 36, and the first expansion pin 36 pops out to lock the piston cylinder 33. The driving part 45 adjusts the position of the external gear cylinder 43 through the rotation direction to make it engage with the next rack 38 for the next sampling.

[0046] The above embodiments only represent several implementation modes of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A high dam deep reservoir water quality monitoring and stratified sampling system based on a remotely operated submersible, comprising a submersible platform (1) and a sampling component (2), wherein: The submersible platform (1) is used to carry various components and dive underwater, and includes a frame (11), a drive unit, a monitoring module, and a communication module, and is characterized in that: the sampling component (2) includes a first fixing plate (21) and a second fixing plate (22), and also includes The collection bottle unit (3) is arranged on the first fixing plate (21), and comprises a bottle body (31) with openings at both ends, and a piston cylinder (33) arranged in the bottle body (31). The piston cylinders (33) are driven one by one to slide along the bottle body (31). The side wall of the bottle body (31) is provided with a first telescopic pin (36) for locking the piston cylinder (33); The bottle stopper assembly (5) comprises a bottle stopper (51) and a limiting plate (52) arranged at the rear of the bottle stopper (51), wherein the bottle stopper (51) is aligned with an opening at one end of the bottle body (31), and an opening and closing hinged rod (54) is arranged on the second fixed plate (22) for blocking the bottle stopper (51) from entering the opening, and a transmission component is arranged on the first fixed plate (21) for driving the hinged rod (54) to release the limiting plate (52) when the piston cylinder (33) slides to the end.

2. The high dam deep reservoir water quality monitoring and stratified sampling system based on remotely operated submersible according to claim 1 is characterized by: The submersible platform (1) further comprises a buoyancy box (12), and the driving unit comprises at least four first driving units (14) for horizontal driving, and at least two second driving units (15) for ascending and descending driving.

3. The high dam deep reservoir water quality monitoring and stratified sampling system based on remotely operated submersible according to claim 1 is characterized by: A control room (13) is arranged on the frame (11), and a power supply, a control module, and a navigation and positioning module are arranged in the control room (13). A monitoring module and a communication module are both arranged in the control room (13), and a probe of the monitoring module extends to the outside of the control room (13).

4. The high dam deep reservoir water quality monitoring and stratified sampling system based on remotely operated submersible according to claim 1 is characterized by: The first fixing plate (21) and the second fixing plate (22) are connected via connecting ribs, and the sampling assembly (2) is connected to the submersible platform (1) via a detachable structure.

5. The high dam deep reservoir water quality monitoring and stratified sampling system based on remotely operated submersible according to claim 1 is characterized by: The surface of the first fixing plate (21) is provided with a mounting groove (24), and the outer surface of the bottle body (31) is provided with a flange (32) corresponding to the mounting groove (24), wherein the mounting groove (24) is closed by a detachable buckle plate (23) provided on the first fixing plate (21).

6. The high dam deep reservoir water quality monitoring and stratified sampling system based on remotely operated submersible according to claim 1 is characterized by: The transmission component comprises a second telescopic pin (37) arranged on the surface of the bottle body (31), a toggle member (57) hingedly arranged on the first fixed plate (21), and a pair of rotating rods (56) connected to the toggle member (57). The rotating rods (56) are used to block the hinged rod (54) from opening. The second telescopic pin (37) is squeezed by the piston cylinder (33) to push the toggle member (57), so that the rotating rod (56) releases the blocking of the hinged rod (54).

7. The high dam deep reservoir water quality monitoring and stratified sampling system based on remotely operated submersible according to claim 6 is characterized by: The second telescopic pin (37) and the first telescopic pin (36) both comprise an angled slider, a spring and a sliding rod extending into the bottle body (31), wherein a slot (35) corresponding to the first telescopic pin (36) is provided on the surface of the piston cylinder (33).

8. The high dam deep reservoir water quality monitoring and stratified sampling system based on remotely operated submersible according to claim 1 is characterized by: A filling piece (34) is provided on the surface of the piston cylinder (33).

9. The high dam deep reservoir water quality monitoring and stratified sampling system based on remotely operated submersible according to claim 1 is characterized by: The piston cylinder (33) is driven one by one by the driving mechanism (4), wherein the driving mechanism (4) comprises a driving part (41), a threaded rod (42) arranged at the output shaft end of the driving part (41), and an external gear cylinder (43) sleeved on the surface of the threaded rod (42); a rack (38) extends from the surface of the piston cylinder (33) and penetrates the bottle body (31) and then meshes with the external gear cylinder (43); a connecting rod (44) parallel to the threaded rod (42) is also arranged on one side of the driving part (41); a plurality of hinges (45) are arranged on the surface of the connecting rod (44); the hinges (45) are bounced open by an elastic component to block the external gear cylinder (43) in one direction.

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