An environmental protection water quality monitoring device

Abstract

The application relates to the technical field of river water monitoring, and discloses an environmental protection water quality monitoring device, which comprises a stand column, an environmental monitoring assembly is arranged on the stand column, a first rotating ring is rotationally connected to the outer wall of the stand column, a gourd plate is slidably connected to the outer wall of the stand column, an extension rod is fixed to one end of the first rotating ring, an arc-shaped groove is arranged on the outer wall of the gourd plate, a first shaft seat is slidably connected in the arc-shaped groove, a first connecting rod is rotationally connected to the first shaft seat, a second shaft seat is rotationally connected to one end of the first connecting rod, the second shaft seat is fixed to the extension rod extension end, a supporting ring is fixed to the extension rod extension end, and a monitoring pipe is movably connected to the supporting ring. The adjusting mechanism is used for stabilizing the work of the monitoring device in the turbulent river, the lifting mechanism is arranged, sampling of water bodies at different levels in the river is facilitated, and the adjusting mechanism is used for facilitating the collection of samples.

Description

Technical Field

[0001] This invention relates to the field of river water monitoring technology, specifically to an environmental protection water quality monitoring device. Background Technology

[0002] Water quality monitoring is the process of monitoring and measuring the types of pollutants in water bodies, the concentrations of various pollutants, and their changing trends to evaluate water quality. The monitoring scope is very broad, including unpolluted and polluted natural water as well as various industrial wastewater. The main monitoring items can be divided into two categories: one is comprehensive indicators reflecting water quality, such as temperature, color, turbidity, pH value, conductivity, suspended solids, dissolved oxygen, chemical oxygen demand, and biochemical oxygen demand; the other is some toxic substances, such as phenols, cyanides, arsenic, lead, chromium, cadmium, mercury, and organic pesticides.

[0003] In the process of river water quality monitoring, floating monitoring is generally used. Floating monitoring is installed on the riverbank by means of buoys and anchor chains. Since the length of the anchor chain cannot be changed, the stability of the device in the river water is poor. If the water level changes, the monitoring device may be deviated from the monitoring point, and there is also a risk of collision with the riverbank. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an environmental protection water quality monitoring device that has the advantage of stable operation in turbulent river water, thus solving the problem of poor stability of existing monitoring devices in river water.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an environmental protection water quality monitoring device, comprising a column fixedly installed on a riverbank, an environmental monitoring component mounted on the column, a first rotating ring rotatably connected to the outer wall of the column, a gourd plate slidably connected to the outer wall of the column, a telescopic rod fixedly mounted at one end of the first rotating ring, an arc-shaped groove on the outer wall of the gourd plate, a first bearing seat slidably connected within the arc-shaped groove, a first connecting rod rotatably connected to the first bearing seat, a second bearing seat rotatably connected to one end of the first connecting rod, one end of the second bearing seat fixedly mounted on the extended end of the telescopic rod, a support ring fixedly mounted on the extended end of the telescopic rod, a monitoring tube movably connected to the support ring, an extraction mechanism for sampling river water within the monitoring tube, and an adjustment mechanism for the auxiliary monitoring tube mounted on the outer wall of the first rotating ring; The extraction mechanism, driven by water pressure, facilitates the extraction of samples from different depths in the river. The adjustment mechanism facilitates the retraction of the monitoring tube through mechanical transmission, while also providing a certain supporting force to the monitoring tube, thereby achieving the effect of stable operation of the monitoring device.

[0006] Preferably, the adjustment mechanism includes two sets of support plates fixedly installed on the outer wall of the column. Threaded rods are rotatably connected within the two sets of support plates. A first motor is fixedly installed at one end of the threaded rod that passes through the support plate. A protective cover is fixedly installed on the outer wall of the column. One end of the first motor is fixedly installed on the outer wall of the support plate. The threaded rod is threadedly connected inside the hoist plate. Both the support plate and the first motor are located inside the protective cover. A locking mechanism for controlling the telescopic rod is provided inside the protective cover.

[0007] Preferably, the adjustment mechanism includes two sets of support plates fixedly installed on the outer wall of the column. Threaded rods are rotatably connected within the two sets of support plates. A first motor is fixedly installed at one end of the threaded rod that passes through the support plate. One end of the first motor is fixedly installed on the outer wall of the support plate. A gear ring is fixedly installed on the outer wall of the first rotating ring. The threaded rod meshes with the gear ring. A threaded rod is fixedly installed at the other end of the threaded rod that passes through the support plate. The threaded rod is threadedly connected inside the hoist plate.

[0008] Preferably, the extraction mechanism includes a fixed frame fixedly installed on the outer wall of the telescopic rod, a take-up roller rotatably connected inside the fixed frame, a second motor fixedly installed on the outer wall of the fixed frame, one end of the take-up roller fixedly installed on the rotor shaft end of the second motor, and a cable wound around the outer wall of the take-up roller.

[0009] Preferably, the monitoring tube is provided with a sampling tube, a limit rod is fixedly installed on the inner wall of the monitoring tube, one end of the cable passing through the monitoring tube is wrapped around the outer wall of the limit rod, a connecting block is fixedly installed on one end of the cable, the sampling tube is detachably installed in the connecting block, and a sampling mechanism is provided in the sampling tube.

[0010] Preferably, the sampling mechanism includes a cavity inside a sampling tube. A partition plate is fixedly installed in the middle of the cavity, dividing the cavity into a first sampling area and a second sampling area. A water inlet is provided on one side of the first sampling area, and a water inlet pipe is seamlessly welded to one side of the second sampling area. A press valve is threaded into the water inlet pipe. An insert rod is movably connected inside the partition plate. A compression spring is sleeved on the outer wall of the insert rod. One end of the compression spring is fixedly installed on the outer wall of the partition plate. One end of the insert rod abuts against the press valve. A piston is fixedly installed on one end of the insert rod and is slidably connected inside the cavity. Multiple sets of air outlets are provided on the outer wall of the partition plate. A counterweight is fixedly installed at the bottom of the cavity.

[0011] Preferably, an installation ring is fixedly installed on the outer wall of the monitoring tube, and the installation ring is installed on the outer wall of the support ring by bolts. A conical cover is slidably connected to the outer wall of the monitoring tube. A filter groove is provided at the bottom inner side of the conical cover. An airbag is fixedly installed on the outer wall of the conical cover. An annular cover is rotatably connected to the bottom end of the conical cover. Four sets of sector blocks are fixedly installed on the outer wall of the annular cover. A cleaning block is fixedly installed on the upper surface of each sector block. The cleaning block abuts against the outer wall of the conical cover.

[0012] Preferably, the environmental monitoring component includes a controller and a solar panel fixedly installed on the outer wall of the column, and a wind speed detector is fixedly installed on the upper end face of the column.

[0013] Preferably, limit rings are fixedly installed at both ends of the monitoring tube, and an opening is provided on one side of the monitoring tube. A pull plate is connected to one side of the opening via a hinge, and one end of the pull plate is connected to the opening via a latch.

[0014] Preferably, the outer wall of the protective cover is provided with a first arc-shaped hole, the telescopic rod is slidably connected in the first arc-shaped hole, the locking mechanism includes a second arc-shaped hole provided on the upper end face of the protective cover, a sleeve is fixedly installed on the upper end face of the telescopic rod, a screw is threadedly connected in the sleeve, a threaded sleeve is threadedly connected on the outer wall of the screw, a sliding groove is provided on the outer wall of the sleeve, a second connecting rod is rotatably connected to the bottom end of the sliding groove, a support block is slidably connected to the side wall of the sliding groove, a third connecting rod is rotatably connected to the support block, a cam is provided at the hinge of the second and third connecting rods, the second and third connecting rods are rotatably connected to the outer wall of the cam, a fourth connecting rod is rotatably connected to the outer wall of the third connecting rod, and one end of the fourth connecting rod is rotatably connected to the outer wall of the threaded sleeve.

[0015] (III) Beneficial Effects Compared with the prior art, the present invention provides an environmental protection water quality monitoring device, which has the following beneficial effects: 1. This invention, through the setting of an adjustment mechanism, enables the first motor to drive the threaded rod to rotate, and the column limits the rotation direction of the hoist plate. Therefore, the hoist plate is slidably connected to the outer wall of the column. While the hoist plate moves downward on the outer wall of the column, it drives the first connecting rod to rotate on the first and second shaft seats, thereby driving the extension end of the telescopic rod to extend. When the monitoring position is reached, the first motor stops. At this time, the conical cover on the monitoring tube contacts the water surface. Under the action of the airbag, the conical cover adapts to the changes in river water level, driving the monitoring tube to contact the water surface. At this time, the first connecting rod, the telescopic rod and the column form a triangular structure, thereby enabling the monitoring tube to work stably in the river.

[0016] 2. By setting a locking mechanism, this invention only requires turning the screw to stop the cam from pressing against the inner wall of the cover, thereby releasing the lock on the telescopic rod. Then, move the handle on the screw so that the telescopic rod rotates to a position close to the horizontal of the riverbank. At this time, the extended end of the telescopic rod is just retracted to its end. At this time, the worker opens the pull plate through the latch and takes out the sampling tube, which makes it convenient for the staff to take samples.

[0017] 3. This invention uses an extraction mechanism and a second motor to release the cable. The sampling tube enters the river water under gravity and then sinks to the riverbed under the action of a counterweight. When the river water enters the inlet pipe, the water pressure squeezes the piston, causing it to slide vertically in the first sampling area. When the river water is completely submerged in the first sampling area, the water pressure causes the rod on the piston to squeeze the pressure valve, opening the inlet pipe and allowing the river water to enter the second sampling area. This achieves the effect of sampling river water at different depths.

[0018] 4. This invention uses a conical hood to protect against garbage and debris in the river water, preventing them from affecting the use of the monitoring equipment. Additionally, by incorporating an airbag, the conical hood moves vertically on the outer wall of the monitoring tube, adapting to changes in water level and facilitating the use of the monitoring device. In use, the conical hood is equipped with an annular cover and a fan-shaped block. The annular cover rotates under the influence of water flow, causing the cleaning blocks on the fan-shaped block to clean the outer edge of the conical hood. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an environmental protection water quality monitoring device proposed in this invention; Figure 2 This is an exploded view of the column and protective cover in an environmental protection water quality monitoring device proposed in this invention; Figure 3 This is a schematic diagram of the monitoring tube structure in an environmental protection water quality monitoring device proposed in this invention; Figure 4 This is a schematic diagram of the conical hood structure in an environmental protection water quality monitoring device proposed in this invention; Figure 5 This is a schematic cross-sectional view of the monitoring tube in an environmental protection water quality monitoring device proposed in this invention; Figure 6 This is a schematic cross-sectional view of the sampling tube in an environmental protection water quality monitoring device proposed in this invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the sleeve in an environmental protection water quality monitoring device proposed in this invention; Figure 8 This is an enlarged schematic diagram of a component a in an environmental protection water quality monitoring device proposed in this invention; Figure 9 This is an enlarged schematic diagram of b in an environmental protection water quality monitoring device proposed in this invention; Figure 10 This is an enlarged schematic diagram of c in an environmental protection water quality monitoring device proposed in this invention.

[0020] In the diagram: 1. Column; 2. First rotating ring; 3. Hoist plate; 4. Telescopic rod; 5. Arc groove; 6. First bearing seat; 7. First connecting rod; 8. Second bearing seat; 9. Support ring; 10. Monitoring tube; 11. Support plate; 12. Threaded rod; 13. First motor; 14. Protective cover; 16. Fixing frame; 17. Take-up roller; 18. Second motor; 19. Cable; 20. Sampling tube; 21. Limiting rod; 22. Connecting block; 23. Cavity; 24. Divider plate; 25. First sampling area; 26. Second sampling area; 27. Water inlet; 28. Water inlet pipe; 29. ​​Press valve; 30. Insert rod; 31. Compression spring; 2. Piston; 33. Air outlet; 34. Counterweight; 35. Mounting ring; 36. Conical cover; 37. Filter tank; 38. Airbag; 39. Annular cover; 40. Fan-shaped block; 41. Cleaning block; 42. Controller; 43. Solar panel; 44. Anemometer; 45. Limiting ring; 46. Pull plate; 47. First arc-shaped hole; 48. Second arc-shaped hole; 49. Sleeve; 50. Screw; 51. Screw sleeve; 52. Slide groove; 53. Second connecting rod; 54. Support block; 55. Third connecting rod; 56. Cam; 57. Fourth connecting rod; 100. Environmental monitoring component; 101. Extraction mechanism; 102. Adjustment mechanism. Detailed Implementation

[0021] 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.

[0022] Example 1: See attached document Figure 1-10An environmental protection water quality monitoring device includes a column 1 fixedly installed on a riverbank, an environmental monitoring component 100 mounted on the column 1, a first rotating ring 2 rotatably connected to the outer wall of the column 1, a gourd plate 3 slidably connected to the outer wall of the column 1, a telescopic rod 4 fixedly mounted at one end of the first rotating ring 2, an arc-shaped groove 5 on the outer wall of the gourd plate 3, a first bearing 6 slidably connected in the arc-shaped groove 5, a first connecting rod 7 rotatably connected to the first bearing 6, a second bearing 8 rotatably connected at one end of the first connecting rod 7, a second bearing 8 fixedly mounted at one end of the extension end of the telescopic rod 4, a support ring 9 fixedly mounted at the extension end of the telescopic rod 4, a monitoring tube 10 movably connected to the support ring 9, an extraction mechanism 101 for sampling river water inside the monitoring tube 10, and an adjustment mechanism 102 for assisting the monitoring tube 10 mounted on the outer wall of the first rotating ring 2. The extraction mechanism 101 uses water pressure to facilitate the extraction of samples from different depths in the river. The adjustment mechanism 102 facilitates the retraction of the monitoring tube 10 through mechanical transmission, and at the same time provides a certain supporting force to the monitoring tube 10, so as to achieve the effect of stable operation of the monitoring device. The adjustment mechanism 102 includes two sets of support plates 11 fixedly installed on the outer wall of the column 1. Threaded rods 12 are rotatably connected inside the two sets of support plates 11. A first motor 13 is fixedly installed at one end of the threaded rod 12 that passes through the support plate 11. A protective cover 14 is fixedly installed on the outer wall of the column 1. One end of the first motor 13 is fixedly installed on the outer wall of the support plate 11. The threaded rod 12 is threadedly connected inside the hoist plate 3. Both the support plate 11 and the first motor 13 are located inside the protective cover 14. A locking mechanism for controlling the telescopic rod 4 is provided inside the protective cover 14. The outer wall of the protective cover 14 is provided with a first arc-shaped hole 47. The telescopic rod 4 is slidably connected in the first arc-shaped hole 47. The locking mechanism includes a second arc-shaped hole 48 provided on the upper end face of the protective cover 14. A sleeve 49 is fixedly installed on the upper end face of the telescopic rod 4. A screw 50 is threadedly connected in the sleeve 49. A threaded sleeve 51 is threadedly connected on the outer wall of the screw 50. A sliding groove 52 is provided on the outer wall of the sleeve 49. A second connecting rod 53 is rotatably connected to the bottom end of the sliding groove 52. A support block 54 is slidably connected to the side wall of the sliding groove 52. A third connecting rod 55 is rotatably connected to the support block 54. A cam 56 is provided at the hinge of the second connecting rod 53 and the third connecting rod 55. The second connecting rod 53 and the third connecting rod 55 are rotatably connected to the outer wall of the cam 56. A fourth connecting rod 57 is rotatably connected to the outer wall of the third connecting rod 55. One end of the fourth connecting rod 57 is rotatably connected to the outer wall of the threaded sleeve 51. By setting a locking mechanism, it is easy to fix the position of the telescopic rod 4, and at the same time, it is easy to collect the sample; The environmental monitoring component 100 includes a controller 42 and a solar panel 43 fixedly installed on the outer wall of the column 1. A wind speed detector 44 is fixedly installed on the upper end face of the column 1. Other monitoring devices, such as water speed detectors, monitors, etc., can also be installed on the outer wall of the monitoring tube 10. When using this invention, firstly, the column 1 is installed next to the river embankment. Then, the handle on the screw 50 is pulled, causing the sleeve 49 to slide in the first arc-shaped hole 47, thereby driving the telescopic rod 4 to change position and reach the corresponding monitoring point. Rotating the screw 50 causes the screw sleeve 51 to move vertically on the outer wall of the screw 50, thus causing the support block 54 to slide in the groove 52, thereby driving the cam 56 to press against the inner wall of the cover 14, thereby achieving the effect of fixing the position of the telescopic rod 4. When the monitoring distance needs to be adjusted, simply start the first motor 13. The first motor 13 drives the threaded rod 12 to rotate. When the threaded rod 12 rotates, it drives the hoist plate 3 to rotate. The column 1 limits the rotation direction of the hoist plate 3. Therefore, the hoist plate 3 is slidably connected to the outer wall of the column 1. While the hoist plate 3 moves downward on the outer wall of the column 1, it drives the first connecting rod 7 to rotate on the first shaft seat 6 and the second shaft seat 8, thereby driving the extension end of the telescopic rod 4 to extend. When the monitoring position is reached, the first motor 13 stops. At this time, the conical cover 36 on the monitoring tube 10 contacts the water surface. Under the action of the airbag 38, the conical cover 36 adapts to the changes in the river water level, causing the monitoring tube 10 to contact the water surface. At this time, the first connecting rod 7, the telescopic rod 4 and the column 1 form a triangular structure, which enables the monitoring tube 10 to work stably in the river. When it is necessary to remove the sample from the sampling tube 20, simply turn the screw 50 so that the cam 56 no longer presses against the inner wall of the cover 14, thereby releasing the lock on the telescopic rod 4. Then move the handle on the screw 50 so that the telescopic rod 4 rotates to a position approximately horizontal to the riverbank. At this time, the extended end of the telescopic rod 4 is just retracted to its end. At this time, the pull plate 46 is opened by the latch to remove the sampling tube 20, which makes it convenient for the staff to take samples.

[0023] Example 2: The difference from Example 1 is that; See attached document Figure 1-10 The extraction mechanism 101 includes a fixed frame 16 fixedly installed on the outer wall of the telescopic rod 4. A take-up roller 17 is rotatably connected inside the fixed frame 16. A second motor 18 is fixedly installed on the outer wall of the fixed frame 16. One end of the take-up roller 17 is fixedly installed on the rotor shaft end of the second motor 18. A cable 19 is wound and connected on the outer wall of the take-up roller 17. A sampling tube 20 is provided inside the monitoring tube 10. A limiting rod 21 is fixedly installed on the inner wall of the monitoring tube 10. One end of the cable 19 passes through the monitoring tube 10 and is wrapped around the outer wall of the limiting rod 21. A connecting block 22 is fixedly installed on one end of the cable 19. The sampling tube 20 is detachably installed in the connecting block 22. A sampling mechanism is provided inside the sampling tube 20. The sampling mechanism includes a cavity 23 located inside the sampling tube 20. A partition plate 24 is fixedly installed in the middle of the cavity 23, dividing the cavity 23 into a first sampling area 25 and a second sampling area 26. A water inlet 27 is provided on one side of the first sampling area 25, and a water inlet pipe 28 is seamlessly welded to one side of the second sampling area 26. A press valve 29 is threadedly connected to the water inlet pipe 28. An insert rod 30 is movably connected inside the partition plate 24. A compression spring 31 is sleeved on the outer wall of the insert rod 30. One end of the compression spring 31 is fixedly installed on the outer wall of the partition plate 24, and one end of the insert rod 30 abuts against the press valve 29. A piston 32 is fixedly installed on one end of the insert rod 30 and is slidably connected inside the cavity 23. Multiple sets of air outlets 33 are provided on the outer wall of the partition plate 24, and a counterweight 34 is fixedly installed at the bottom of the cavity 23. By setting up the first sampling area 25 and the second sampling area 26, it is convenient to sample water at different depths, which facilitates comparative studies by staff. Limiting rings 45 are fixedly installed at both ends of the monitoring tube 10. An opening is provided on one side of the monitoring tube 10. A pull plate 46 is connected to the opening side by a hinge. One end of the pull plate 46 is connected to the opening by a latch. By setting the limiting ring 45, the position of the conical cover 36 can be easily limited; When sampling, the extraction mechanism 101 of this invention starts the second motor 18, which drives the take-up roller 17 to rotate and release the cable 19. At this time, the sampling tube 20 enters the river water under the action of gravity, and then sinks to the bottom of the river under the action of the counterweight 34. When the river water enters the inlet pipe 28, it squeezes the piston 32 under the action of water pressure, causing the piston 32 to slide vertically in the first sampling area 25. Once the river water has completely submerged the first sampling area 25, the water pressure causes the rod 30 on the piston 32 to press the valve 29. At this time, the water inlet pipe 28 opens, and the river water enters the second sampling area 26, thus achieving the effect of sampling river water at different depths.

[0024] Example 3: The difference from Example 1 is that; See attached document Figure 1-10 An installation ring 35 is fixedly installed on the outer wall of the monitoring tube 10. The installation ring 35 is installed on the outer wall of the support ring 9 by bolts. A conical cover 36 is slidably connected to the outer wall of the monitoring tube 10. A filter groove 37 is provided at the bottom of the inner side of the conical cover 36. An airbag 38 is fixedly installed on the outer wall of the conical cover 36. An annular cover 39 is rotatably connected to the bottom of the conical cover 36. Four sets of fan-shaped blocks 40 are fixedly installed on the outer wall of the annular cover 39. A cleaning block 41 is fixedly installed on the upper surface of each fan-shaped block 40. The cleaning block 41 abuts against the outer wall of the conical cover 36. By setting up the conical cover 36, it is easy to protect the garbage and debris in the river water so as not to affect the use of the monitoring equipment. At the same time, by setting up the airbag 38, the conical cover 36 can move vertically on the outer wall of the monitoring tube 10, which can easily adapt to the rise and fall of the water level and facilitate the use of the monitoring device.

[0025] In use, the present invention is provided with a rotatable annular cover 39 on the conical cover 36, and a fan-shaped block 40 is fixedly installed on the outer wall of the annular cover 39, so that the annular cover 39 rotates under the action of water flow, thereby driving the cleaning block 41 on the fan-shaped block 40 to clean the outer edge of the conical cover 36.

[0026] It should be noted that the term "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] 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. An environmental protection water quality monitoring device, comprising a column (1) fixedly installed on a riverbank, wherein an environmental monitoring component (100) is provided on the column (1), characterized in that: The first rotating ring (2) is rotatably connected to the outer wall of the column (1), and the gourd plate (3) is slidably connected to the outer wall of the column (1). A telescopic rod (4) is fixedly installed at one end of the first rotating ring (2). An arc groove (5) is provided on the outer wall of the gourd plate (3). A first bearing seat (6) is slidably connected in the arc groove (5). A first connecting rod (7) is rotatably connected on the first bearing seat (6). A second bearing seat (8) is rotatably connected at one end of the first connecting rod (7). One end of the second bearing seat (8) is fixedly installed on the extended end of the telescopic rod (4). A support ring (9) is fixedly installed on the extended end of the telescopic rod (4). A monitoring tube (10) is movably connected to the support ring (9). An extraction mechanism (101) for sampling river water is provided in the monitoring tube (10). An adjustment mechanism (102) for the auxiliary monitoring tube (10) is provided on the outer wall of the first rotating ring (2). The adjustment mechanism (102) includes two sets of support plates (11) fixedly installed on the outer wall of the column (1). A threaded rod (12) is rotatably connected in the two sets of support plates (11). A first motor (13) is fixedly installed at one end of the threaded rod (12) that passes through the support plate (11). A protective cover (14) is fixedly installed on the outer wall of the column (1). One end of the first motor (13) is fixedly installed on the outer wall of the support plate (11). The threaded rod (12) is threadedly connected in the hoist plate (3). The support plate (11) and the first motor (13) are both located in the protective cover (14). A locking mechanism for controlling the telescopic rod (4) is provided in the protective cover (14). The outer wall of the protective cover (14) is provided with a first arc-shaped hole (47), and the telescopic rod (4) is slidably connected in the first arc-shaped hole (47). The locking mechanism includes a second arc-shaped hole (48) provided on the upper end face of the protective cover (14). A sleeve (49) is fixedly installed on the upper end face of the telescopic rod (4). A screw (50) is threadedly connected in the sleeve (49). A screw sleeve (51) is threadedly connected on the outer wall of the screw (50). A sliding groove (52) is provided on the outer wall of the sleeve (49). The bottom end of the sliding groove (52) rotates. A second connecting rod (53) is connected, a support block (54) is slidably connected to the side wall of the slide groove (52), a third connecting rod (55) is rotatably connected to the support block (54), a cam (56) is provided at the hinge of the second connecting rod (53) and the third connecting rod (55), the second connecting rod (53) and the third connecting rod (55) are rotatably connected to the outer wall of the cam (56), a fourth connecting rod (57) is rotatably connected to the outer wall of the third connecting rod (55), and one end of the fourth connecting rod (57) is rotatably connected to the outer wall of the threaded sleeve (51); The extraction mechanism (101) uses water pressure to facilitate the extraction of samples from different depths in the river. The adjustment mechanism (102) facilitates the collection of the monitoring tube (10) through mechanical transmission, and at the same time provides a certain supporting force to the monitoring tube (10), so as to achieve the effect of stable operation of the monitoring device.

2. The environmental protection water quality monitoring device according to claim 1, characterized in that: The extraction mechanism (101) includes a fixed frame (16) fixedly installed on the outer wall of the telescopic rod (4), a take-up roller (17) is rotatably connected inside the fixed frame (16), a second motor (18) is fixedly installed on the outer wall of the fixed frame (16), one end of the take-up roller (17) is fixedly installed on the rotor shaft end of the second motor (18), and a cable (19) is wound and connected on the outer wall of the take-up roller (17).

3. The environmental protection water quality monitoring device according to claim 2, characterized in that: The monitoring tube (10) is provided with a sampling tube (20). A limiting rod (21) is fixedly installed on the inner wall of the monitoring tube (10). One end of the cable (19) passes through the monitoring tube (10) and is wrapped around the outer wall of the limiting rod (21). A connecting block (22) is fixedly installed on one end of the cable (19). The sampling tube (20) is detachably installed in the connecting block (22). A sampling mechanism is provided in the sampling tube (20).

4. The environmental protection water quality monitoring device according to claim 3, characterized in that: The sampling mechanism includes a cavity (23) located inside the sampling tube (20). A partition plate (24) is fixedly installed in the middle of the cavity (23), dividing the cavity (23) into a first sampling area (25) and a second sampling area (26). A water inlet (27) is provided on one side of the first sampling area (25), and a water inlet pipe (28) is seamlessly welded to one side of the second sampling area (26). A press valve (29) is threaded into the water inlet pipe (28). The partition plate (24) is movable. A plug rod (30) is connected, and a compression spring (31) is sleeved on the outer wall of the plug rod (30). One end of the compression spring (31) is fixedly installed on the outer wall of the partition plate (24). One end of the plug rod (30) abuts against the press valve (29). A piston (32) is fixedly installed on one end of the plug rod (30). The piston (32) is slidably connected in the cavity (23). Multiple sets of air outlets (33) are provided on the outer wall of the partition plate (24). A counterweight (34) is fixedly installed at the bottom of the cavity (23).

5. The environmental protection water quality monitoring device according to claim 1, characterized in that: An installation ring (35) is fixedly installed on the outer wall of the monitoring tube (10). The installation ring (35) is installed on the outer wall of the support ring (9) by bolts. A conical cover (36) is slidably connected to the outer wall of the monitoring tube (10). A filter groove (37) is provided at the bottom of the inner side of the conical cover (36). An airbag (38) is fixedly installed on the outer wall of the conical cover (36). An annular cover (39) is rotatably connected to the bottom of the conical cover (36). Four sets of fan-shaped blocks (40) are fixedly installed on the outer wall of the annular cover (39). A cleaning block (41) is fixedly installed on the upper surface of each fan-shaped block (40). The cleaning block (41) abuts against the outer wall of the conical cover (36).

6. The environmental protection water quality monitoring device according to claim 1, characterized in that: The environmental monitoring component (100) includes a controller (42) and a solar panel (43) fixedly installed on the outer wall of the column (1), and a wind speed detector (44) is fixedly installed on the upper surface of the column (1).

7. The environmental protection water quality monitoring device according to claim 1, characterized in that: Limiting rings (45) are fixedly installed at both ends of the monitoring tube (10). An opening is provided on one side of the monitoring tube (10). A pull plate (46) is connected to one side of the opening via a hinge. One end of the pull plate (46) is connected to the opening via a buckle.

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