A water quality monitoring device for environmental engineering

Abstract

The invention discloses a water quality monitoring device for environmental engineering, which comprises a monitoring box, a U-shaped frame, a power-driven roller, a rope, a fixing cylinder, a filter barrel and a water suction hose, etc. The U-shaped frame is arranged at the bottom of the inner wall of the monitoring box, the roller is driven by a power mechanism, the bottom end of the rope is connected to the filter barrel, and the bottom end of the filter barrel is connected to the water suction hose, so as to realize water impurity filtering and water sample extraction, the auxiliary mechanism controls the roller by a locking rod and a ratchet wheel to ensure the stable sedimentation of the filter barrel; the monitoring mechanism monitors water quality parameters by using a piston cylinder and a detection probe; the cleaning mechanism automatically removes impurities on the surface of the filter barrel to maintain the monitoring efficiency; the pulling away mechanism prevents attachments such as aquatic plants from interfering with the monitoring, the device is cleverly designed, has a high degree of automation, is easy to operate, effectively improves the efficiency and accuracy of water quality monitoring, reduces maintenance costs, and is suitable for water quality monitoring in various water environments such as rivers, lakes and seas.

Description

Technical Field

[0001] The invention relates to the technical field of water quality monitoring, in particular to a water quality monitoring device for environmental engineering. Background Art

[0002] As an important branch of environmental science, environmental engineering focuses on the protection and rational use of natural resources, and is committed to the scientific and technological research and practice of preventing and controlling environmental pollution and improving environmental quality. This field is closely related to ecology in biology, environmental hygiene and environmental medicine in the medical field, as well as environmental physics and environmental chemistry. Although environmental engineering is still in its early stages of development and its research scope is constantly expanding, its core has always been centered around the control of environmental pollution sources.

[0003] Among many environmental governance tasks, water quality monitoring occupies a pivotal position. Water quality monitoring involves monitoring the types, concentrations and changing trends of pollutants in water bodies, and assessing the water quality status based on this. The monitoring objects are extensive, including not only unpolluted natural water bodies (such as rivers, lakes, oceans and groundwater), but also various industrial wastewater discharges. Monitoring items are mainly divided into two categories: one is comprehensive indicators that reflect the overall status of water quality, including temperature, color, turbidity, pH value, conductivity, suspended solids, dissolved oxygen, chemical oxygen demand and biochemical oxygen demand; the other is toxic substances, including phenol, cyanide, arsenic, lead, chromium, cadmium, mercury and organic pesticides.

[0004] The existing Chinese patent with publication number CN118688412A includes a placement base, a limited mounting plate is fixedly arranged above the placement base, a detection box is fixedly arranged above the placement base, a photovoltaic panel is fixedly arranged on the top of the detection box, a partition is fixedly arranged inside the detection box, a battery is fixedly arranged above the partition, a detector is fixedly arranged below the partition, a control module is fixedly arranged on one side of the detector below the partition, a control display screen is fixedly arranged on the outside of the detection box, a protection box is fixedly arranged on one side above the placement base, a sampling water pump is fixedly arranged inside the protection box, a water suction hose is fixedly arranged on one side of the sampling water pump, a filter is fixedly arranged at one end of the water suction hose, and a first filter is fixedly arranged inside the filter.

[0005] When the above device is in use, a filter is used to filter out some irrelevant impurities in the water area, thereby increasing the working efficiency of the detector when detecting water, and reducing the probability of failure of the detector. The detector will transmit the data to the control module after the detection is completed, so that the staff can record the data through the control display screen. However, in actual use, the water pump hose is sunk to a specified depth to sample and monitor the water body. Since the water pump hose will contact water bodies of different depths during the sinking process, and the water quality of water bodies of different depths is different, the water quality monitoring is single, which affects the accuracy of the water quality monitoring results of the detector. Therefore, it is difficult to sample and detect water bodies of different depths in turn according to the sinking depth of the water pump hose.

[0006] For this purpose, we proposed a water quality monitoring device for environmental engineering. Summary of the invention

[0007] The purpose of the present invention is to provide a water quality monitoring device for environmental engineering, which has the advantage of sampling and testing water bodies of different depths in sequence according to the sinking depth of the water suction hose, thereby solving the problems in the background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water quality monitoring device for environmental engineering, comprising a monitoring box, a U-shaped frame is fixedly connected to the bottom of the inner wall of the monitoring box, a drum driven by a power mechanism is rotatably connected to the opposite surface of the end of the U-shaped frame, a rope is rolled and stored on the outer contour of the drum, a fixed cylinder is fixedly connected to the bottom end of the rope, a filter barrel for filtering impurities in the water is penetrated and fixedly connected to the bottom end of the fixed cylinder, a water suction hose for extracting water bodies of different depths is penetrated and fixedly connected to the end of the filter barrel, and wire outlet holes for the movement of the rope are opened at corresponding positions of the bottom of the monitoring box and the U-shaped frame, and an auxiliary mechanism for locking and unlocking the drum and a monitoring mechanism for monitoring water bodies of different depths are provided on the monitoring box.

[0009] Preferably, the auxiliary mechanism includes movable grooves at symmetrical positions on both sides of the monitoring box, the inner walls of the movable grooves on both sides are connected to locking rods for locking the roller, and one end of the roller is coaxially fixed with a ratchet that engages with the locking rod.

[0010] Preferably, both ends of the locking rod are fixedly connected with floats floating on the water surface, and the floats are connected to the outer contour of the monitoring box for lifting and lowering movement. The end of the monitoring box and the opposite surface of the water suction hose are fixedly connected with a spring to guide the float to reset.

[0011] Preferably, the monitoring mechanism includes a piston cylinder that is penetrated and fixedly connected to one side of the bottom of the monitoring box, and the end of the water suction hose is penetrated to the bottom end of the piston cylinder and fixedly connected, a water outlet pipe is penetrated and fixedly connected to the outer contour of the piston cylinder near one end of the water suction hose, and a detection probe for monitoring water quality is fixedly connected to the inner wall of the bottom end of the piston cylinder, and a liquid inlet valve and a liquid discharge valve are fixedly connected to the inner walls of the water suction hose and the water outlet pipe near one end of the piston cylinder.

[0012] Preferably, the inner wall of the piston cylinder is connected to a piston rod for extracting water at different depths, and the end of the piston rod is fixedly connected to a rectangular frame. The ratchet is fixedly connected to a support block that pulls the piston rod to move up and down, and the support block penetrates the inner wall of the rectangular frame and movably supports it.

[0013] Preferably, the filter barrel is provided with a cleaning mechanism for scraping off surface impurities, the cleaning mechanism includes a threaded sleeve that is penetrated through and rotatably connected to the bottom of the filter barrel, a weight block that drives the filter barrel to settle is fixedly connected to the outer contour of the bottom end of the threaded sleeve, and a plurality of evenly placed scrapers are fixedly connected to the weight block near the edge, and the scrapers are in contact with the outer contour of the filter barrel and are movably connected.

[0014] Preferably, the inner wall of the fixed cylinder is connected to a piston plate for lifting and movement, and the bottom of the piston plate is fixedly connected to a threaded rod that drives the threaded sleeve to rotate, and the bottom end of the threaded rod penetrates the inner wall of the threaded sleeve and is screwed, and air bags are penetrated and fixedly connected at symmetrical positions on both sides of the fixed cylinder near the end.

[0015] Preferably, the weight block is provided with a disengaging mechanism for blocking the aquatic plants, and the disengaging mechanism includes a plurality of evenly placed connecting seats fixedly connected to the outer contour of the weight block, and each of the connecting seats is rotatably connected to a baffle for blocking the aquatic plants around the filter barrel via a pin shaft.

[0016] Preferably, a movable sleeve is rotatably connected to the outer contour of the bottom end of the threaded rod, and an L-shaped pull rod for pulling the baffle to expand and contract is fixedly connected to the outer contour of the movable sleeve at a position corresponding to the connecting seat. A movable groove for movably supporting the L-shaped pull rod is provided on one side of each of the baffles, and each end of the L-shaped pull rod is respectively extended to the inner wall of the movable groove at the corresponding position and movably connected.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Through the cooperation of the locking rod and the ratchet, the drum is effectively locked and unlocked. When the locking rod is out of contact with the ratchet, the filter barrel can automatically sink underwater, improving the stability of the filter barrel during underwater operation. When the locking rod is in contact with the ratchet, the locking rod can lock the drum through the ratchet, avoiding accidental rolling caused by the gravity of the filter barrel, ensuring the continuity and safety of the monitoring process, and also reducing the risk of equipment damage caused by accidental rolling.

[0019] 2. As the filter barrel sinks, the drum and the ratchet wheel rotate synchronously, so that the support block can pull the piston rod to move up and down in the piston barrel under the rotation of the ratchet wheel. In conjunction with the automatic opening and closing of the liquid inlet valve and the liquid discharge valve, the piston rod can extract and monitor the water bodies at different depths of the filter barrel in turn, ensuring the representativeness of the samples and the accuracy of the monitoring results.

[0020] 3. As the sedimentation depth of the filter barrel gradually increases, the pressure on the airbag in the water body increases synchronously, so that the gas inside the airbag is filled to the end of the fixed cylinder under the action of pressure, and the threaded rod moves under the action of the piston plate and drives the threaded sleeve to rotate, so that the weight can drive the scraper to rotate to scrape and clean the impurities filtered on the surface of the filter barrel, reducing the need for manual cleaning, reducing maintenance costs and labor intensity, and ensuring the continuous and efficient operation of the filter barrel, improving the continuity and reliability of water quality monitoring, and reducing equipment failures and replacement frequency due to blockage.

[0021] Fourth, by expanding and contracting the baffle on the weight block, the aquatic plants around the filter barrel are effectively peeled off, avoiding clogging of the filter barrel surface by these substances, and improving the efficiency and accuracy of water quality monitoring. Since underwater aquatic plants and other organisms are relatively dense, the aquatic plants around the filter barrel are peeled off to the outside to reduce the interference of aquatic plants and other organisms on the monitoring process, thereby ensuring the authenticity and effectiveness of the monitoring data. At the same time, the automatic operation of the peeling mechanism reduces manual intervention, reduces the complexity of operation, and improves the automation level of the equipment and the user's convenience of operation.

[0022] The coordinated use of the above-mentioned structure solves the problem that, in actual use, the existing device requires the water pump to be sunk to a specified depth to sample and monitor the water body. Since the water pump hose will come into contact with water bodies of different depths during the sinking process, and the water quality of water bodies at different depths is different, the water quality monitoring is single, which affects the accuracy of the water quality monitoring results. Therefore, it is difficult to sample and detect water bodies of different depths in turn according to the sinking depth of the water pump hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the present invention;

[0025] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the ratchet wheel of the present invention;

[0027] Figure 5 It is a cross-sectional schematic diagram of the three-dimensional structure of the piston cylinder of the present invention;

[0028] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at B in the middle;

[0029] Figure 7 This is a schematic diagram of the three-dimensional structure of the filter barrel of the present invention;

[0030] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at C in the middle;

[0031] Fig. 9 It is a schematic cross-sectional view of the three-dimensional structure of the filter barrel of the present invention;

[0032] Fig.10 For the present invention Fig. 9 Schematic diagram of the structure at point D in the middle.

[0033] In the figure: 1, monitoring box; 101, moving groove; 2, U-shaped frame; 201, wire outlet hole; 3, drum; 4, rope; 5, fixed cylinder; 6, filter barrel; 7, suction hose; 701, liquid inlet valve; 8, locking rod; 9, ratchet; 10, floating block; 11, spring; 12, piston cylinder; 13, water outlet pipe; 131, drain valve; 14, piston rod; 15, rectangular frame; 16, support block; 17, detection probe; 18, threaded sleeve; 19, weight block; 20, scraper; 21, piston plate; 22, air bag; 23, threaded rod; 24, connecting seat; 25, baffle; 251, movable groove; 26, movable sleeve; 27, L-shaped pull rod. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1:

[0035] See also Figures 1 to 10The present invention provides a technical solution: a water quality monitoring device for environmental engineering, comprising a monitoring box 1, a U-shaped frame 2 is fixedly connected to the bottom of the inner wall of the monitoring box 1, a drum 3 driven to rotate by a power mechanism is rotatably connected to the opposite surface of the end of the U-shaped frame 2, a rope 4 is rolled and stored on the outer contour of the drum 3, a fixed cylinder 5 is fixedly connected to the bottom end of the rope 4, a filter barrel 6 for filtering impurities in the water is penetrated and fixedly connected to the bottom end of the filter barrel 6, a water extraction hose 7 for extracting water bodies of different depths is penetrated and fixedly connected to the end of the filter barrel 6, and a wire outlet hole 201 for the rope 4 to move is opened at the corresponding positions of the bottom of the monitoring box 1 and the U-shaped frame 2, and an auxiliary mechanism for locking and unlocking the drum 3 and a monitoring mechanism for monitoring water bodies of different depths are provided on the monitoring box 1.

[0036] When in use, through the U-shaped frame 2 set on the monitoring box 1 and the roller 3 set on the U-shaped frame 2, the U-shaped frame 2 fixes and supports the roller 3 on the monitoring box 1, and the roller 3 is rotatably connected on the U-shaped frame 2, and the rope 4 is rolled and stored on the outer contour of the roller 3 through the rope 4 set on the roller 3, and the roller 3 is driven to rotate by the motor, so that the motor can drive the roller 3 to rotate to roll and store the rope 4, and the outlet hole 201 opened on the U-shaped frame 2 and the monitoring box 1, the end of the rope 4 is passed through the outlet hole 201, and passed through the fixed tube 5 set on the rope 4, and the fixed tube The filter barrel 6 arranged on 5 can enable the fixing cylinder 5 to fix and support the filter barrel 6 on the rope 4, and the filter barrel 6 can filter impurities in the water body at the same time, through the water suction hose 7 arranged on the filter barrel 6, and the water suction hose 7 is connected with the inner wall of the filter barrel 6, so that the subsequent water suction hose 7 can extract and monitor the water body after filtering inside the filter barrel 6. Through the auxiliary mechanism and the monitoring mechanism on the monitoring box 1, the auxiliary mechanism can control the sedimentation of the filter barrel 6, thereby improving the stability of the filter barrel 6. At the same time, the detection mechanism can detect water bodies of different depths along with the sedimentation of the filter barrel 6. Embodiment 2:

[0037] On the basis of the first embodiment, further:

[0038] The auxiliary mechanism includes movable grooves 101 symmetrically provided on both sides of the monitoring box 1, and the inner walls of the movable grooves 101 on both sides are connected to the locking rods 8 for locking the roller 3, and one end of the roller 3 is coaxially fixed with a ratchet 9 engaged with the locking rod 8.

[0039] The two ends of the locking rod 8 are fixedly connected with a float 10 floating on the water surface, and the float 10 is connected to the outer contour of the monitoring box 1 for lifting and movement. The end of the monitoring box 1 and the opposite surface of the water suction hose 7 are fixedly connected with a spring 11 for guiding the float 10 to reset.

[0040] When in use, through the movable groove 101 opened on the monitoring box 1 and the locking rod 8 arranged on the movable groove 101, the movable groove 101 limits the moving direction of the locking rod 8, and through the ratchet 9 arranged on the drum 3, the locking rod 8 is engaged with the teeth on the ratchet 9 in the initial state, and the drum 3 and the ratchet 9 are coaxially fixedly connected, so that the ratchet 9 locks the drum 3 under the action of the locking rod 8, thereby improving the stability of the filter barrel 6 and preventing the rope 4 from pulling the drum 3 to rotate under the gravity of the filter barrel 6.

[0041] The float 10 is fixedly supported on the locking rod 8 by the float 10 arranged on the locking rod 8, and the spring 11 arranged on the float 10 enables the spring 11 to support the position of the float 10 under the action of elastic force. First, the monitoring box 1 is placed in the river water, and the float 10 can float on the water surface under the action of buoyancy. At this time, the monitoring box 1 sinks under the action of gravity, so that the spring 11 is squeezed and contracted under the action of the monitoring box 1. At the same time, the locking rod 8 moves to the limit distance of the end of the moving groove 101, and the locking rod 8 is disengaged from the ratchet 9, so that the filter barrel 6 pulls the drum 3 to rotate under the action of gravity to release the rope 4, and the filter barrel 6 can automatically sink toward the underwater, so as to facilitate the subsequent monitoring of water bodies at different depths during the sinking process of the filter barrel 6.

[0042] When the filter barrel 6 sinks to the limit distance, the motor drives the drum 3 to rotate and roll up the rope 4, so that the monitored filter barrel 6 can be pulled out from the bottom of the water. Embodiment three:

[0043] On the basis of the second embodiment, further:

[0044] The monitoring mechanism includes a monitoring box 1 with one side of the bottom penetrated and fixedly connected with a piston cylinder 12, and the end of the water suction hose 7 penetrates the bottom end of the piston cylinder 12 and is fixedly connected, the outer contour of the piston cylinder 12 near the end of the water suction hose 7 is penetrated and fixedly connected with a water outlet pipe 13, and the inner wall of the bottom end of the piston cylinder 12 is fixedly connected with a detection probe 17 for monitoring water quality, and the inner walls of the water suction hose 7 and the water outlet pipe 13 near the end of the piston cylinder 12 are fixedly connected with a liquid inlet valve 701 and a liquid discharge valve 131.

[0045] The inner wall of the piston cylinder 12 is connected to a piston rod 14 for extracting water at different depths, and the end of the piston rod 14 is fixedly connected to a rectangular frame 15. The ratchet 9 is fixedly connected to a support block 16 that pulls the piston rod 14 to move up and down, and the support block 16 penetrates the inner wall of the rectangular frame 15 and movably supports it.

[0046] When in use, the piston cylinder 12 provided on the monitoring box 1 is used to fix and support the piston cylinder 12 on the monitoring box 1, and the water suction hose 7 passes through the inner wall of the piston cylinder 12, so that the water suction hose 7 can connect the filter barrel 6 with the inner wall of the piston cylinder 12, and the water outlet pipe 13 provided on the piston cylinder 12, then the water outlet pipe 13 is connected with the inner wall of the piston cylinder 12, and the piston rod 14 provided on the piston cylinder 12 can make the piston rod 14 be lifted and moved on the inner wall of the piston cylinder 12, and the rectangular frame 15 provided on the piston rod 14 is used to fix and support the end of the piston rod 14, and the support block 16 provided on the ratchet 9 is movably supported on the inner wall of the rectangular frame 15, and the rope 4 pulls the drum 3 to rotate and release, so that the support block 16 can pull the piston rod 14 on the inner wall of the piston cylinder 12 through the rectangular frame 15 under the action of the ratchet 9 to lift and reciprocate.

[0047] When the piston rod 14 moves in an upward vertical direction, the internal air pressure of the piston cylinder 12 near one end of the water suction hose 7 is negative pressure, and the liquid inlet valve 701 and the liquid discharge valve 131 arranged on the water suction hose 7 and the water outlet pipe 13 make the liquid inlet valve 701 in an open state and the liquid discharge valve 131 in a closed state, so that the water suction hose 7 can quantitatively extract the filtered water inside the filter barrel 6 to the inner wall of the piston cylinder 12, and the detection probe 17 arranged on the piston cylinder 12 can enable the detection probe 17 to monitor the water quality extracted from the piston cylinder 12, and the detection probe 17 is connected to the external detection instrument through a signal, so that the detection probe 17 can convert the physical or chemical information measured by the water quality into an electrical signal and transmit it remotely to the external detection instrument to prompt the personnel, so that the personnel can monitor and record the water quality monitoring results, wherein the final remote transmission of the electrical signal to the detection instrument is an existing technology well known to those skilled in the art, so it will not be repeated here.

[0048] When the piston rod 14 moves in the downward vertical direction, the internal air pressure of the piston cylinder 12 near the end of the water suction hose 7 is positive, and the liquid inlet valve 701 is closed, and the liquid discharge valve 131 is open, so that the outlet pipe 13 can discharge the monitored water quality. Through the coordinated use of the above-mentioned structure, accompanied by the sedimentation of the filter barrel 6, the piston rod 14 can move up and down and reciprocate on the inner wall of the piston cylinder 12, further realizing the extraction and detection of water bodies at different depths in sequence, thereby improving the accuracy of water quality monitoring results. Embodiment 4:

[0049] On the basis of the third embodiment, further:

[0050] The filter barrel 6 is provided with a cleaning mechanism for scraping off surface impurities, the cleaning mechanism includes a threaded sleeve 18 that penetrates the bottom of the filter barrel 6 and is rotatably connected, a weight block 19 that drives the filter barrel 6 to settle is fixedly connected to the outer contour of the bottom end of the threaded sleeve 18, and a plurality of evenly placed scrapers 20 are fixedly connected to the weight block 19 near the edge, and the scrapers 20 are in contact with the outer contour of the filter barrel 6 and are movably connected.

[0051] The inner wall of the fixed cylinder 5 is connected to a piston plate 21 for lifting and movement, and the bottom of the piston plate 21 is fixedly connected to a threaded rod 23 for driving the threaded sleeve 18 to rotate, and the bottom end of the threaded rod 23 penetrates through the inner wall of the threaded sleeve 18 and is screwed, and air bags 22 are penetrated and fixedly connected at symmetrical positions on both sides of the fixed cylinder 5 near the end.

[0052] When in use, through the threaded sleeve 18 provided on the filter barrel 6 and the weight 19 provided on the threaded sleeve 18, the threaded sleeve 18 can drive the weight 19 to rotate and connect on the filter barrel 6, and through the piston plate 21 provided on the fixed barrel 5 and the threaded rod 23 provided on the piston plate 21, the piston plate 21 can drive the threaded rod 23 to be lifted and moved on the inner wall of the fixed barrel 5, and through the air bag 22 provided on the fixed barrel 5, the air bag 22 can be connected with the inner wall of the fixed barrel 5, as the sedimentation depth of the filter barrel 6 gradually increases, and the pressure on the air bag 22 in the water body increases synchronously, the air bag 22 is pressed under the action of pressure. The air bag 22 is used to contract downward, and the gas inside the air bag 22 is filled to the end of the fixed tube 5, so that the piston plate 21 can drive the threaded rod 23 to move in the downward vertical direction, and the threaded rod 23 is screwed with the threaded sleeve 18, and then the threaded sleeve 18 can drive the weight block 19 to rotate under the action of the threaded rod 23, and the scraper 20 is arranged on the weight block 19, and the scraper 20 is in contact with the surface of the fixed tube 5, so that the weight block 19 can drive the scraper 20 to rotate to scrape and clean the impurities that are prevented from being filtered by the filter barrel 6, thereby preventing impurities in the water body from clogging the holes and grooves on the surface of the filter barrel 6, affecting the extraction and detection results of the water body by the water suction hose 7.

[0053] Furthermore, the gravity of the weight block 19 is greater than the buoyancy of the air bag 22, so that the weight block 19 can pull the filter barrel 6 and the air bag 22 to sink. Embodiment five:

[0054] On the basis of the fourth embodiment, further:

[0055] The weight block 19 is provided with a disengaging mechanism for blocking the aquatic plants. The disengaging mechanism includes a plurality of evenly placed connecting seats 24 fixedly connected to the outer contour of the weight block 19. Each of the connecting seats 24 is rotatably connected to a baffle 25 for blocking the aquatic plants around the filter barrel 6 via a pin shaft.

[0056] A movable sleeve 26 is rotatably connected to the outer contour of the bottom end of the threaded rod 23, and an L-shaped pull rod 27 for pulling the baffle 25 to expand and contract is fixedly connected to the outer contour of the movable sleeve 26 at a position corresponding to the connecting seat 24. A movable groove 251 for movably supporting the L-shaped pull rod 27 is opened on one side of each of the baffles 25, and each end of the L-shaped pull rod 27 is respectively extended to the inner wall of the movable groove 251 at the corresponding position and movably connected.

[0057] When in use, the connection seat 24 provided on the weight block 19 is used to fix and support the connection seat 24 on the weight block 19, and the baffle plate 25 provided on the connection seat 24 enables the baffle plate 25 to be rotatably connected on the connection seat 24. The movable sleeve 26 provided on the threaded rod 23 and the L-shaped pull rod 27 provided on the movable sleeve 26 can drive the L-shaped pull rod 27 to be rotatably connected on the threaded rod 23, and the movable groove 251 provided on the baffle plate 25, so that the movable groove 251 can movably support the L-shaped pull rod 27. As the threaded rod 23 moves in the downward vertical direction, the threaded rod 23 can drive the movable sleeve 26 and the L-shaped pull rod 27 to move synchronously in the downward vertical direction, and the L-shaped pull rod 27 can be adjusted on the inner wall of the movable groove 251, so that the L-shaped pull rod 27 can pull the baffle 25 to expand outward, and then the baffle 25 can peel off the aquatic plants around the filter barrel 6 to the outside, avoiding the aquatic plants adhering to the surface of the filter barrel 6 and causing blockage, thereby further improving the efficiency and results of water quality monitoring.

[0058] Furthermore, the existing device can sample and detect water bodies of different depths in sequence according to the sinking depth of the water pump hose during actual use, which is easy to use and better than traditional products.

[0059] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water quality monitoring device for environmental engineering, characterized in that: The monitoring box (1) comprises a monitoring box (1), wherein a U-shaped frame (2) is fixedly connected to the bottom of the inner wall of the monitoring box (1), a drum (3) driven to rotate by a power mechanism is fixedly connected to the opposite surface of the end of the U-shaped frame (2), a rope (4) is rolled and stored on the outer contour of the drum (3), a fixed cylinder (5) is fixedly connected to the bottom end of the rope (4), a filter barrel (6) for filtering impurities in water is penetrated and fixedly connected to the bottom end of the fixed cylinder (5), a water extraction hose (7) for extracting water bodies of different depths is penetrated and fixedly connected to the end of the filter barrel (6), and a wire outlet hole (201) for the rope (4) to move is opened at corresponding positions on the bottom of the monitoring box (1) and the U-shaped frame (2), and an auxiliary mechanism for locking and unlocking the drum (3) and a monitoring mechanism for monitoring water bodies of different depths are provided on the monitoring box (1); The auxiliary mechanism comprises movable grooves (101) symmetrically formed on both sides of the monitoring box (1), the inner walls of the movable grooves (101) on both sides being connected to locking rods (8) for locking the roller (3) in a lifting and moving manner, and one end of the roller (3) being coaxially fixedly connected to a ratchet (9) engaged with the locking rod (8); Both ends of the locking rod (8) are fixedly connected to a float (10) floating on the water surface, and the float (10) is connected to the outer contour of the monitoring box (1) for lifting and moving, and the end of the monitoring box (1) and the opposite surface of the water suction hose (7) are fixedly connected to a spring (11) for guiding the float (10) to reset and move; the monitoring mechanism comprises a piston cylinder (12) penetrating and fixedly connected to one side of the bottom of the monitoring box (1), and the end of the water suction hose (7) is penetrated to the bottom end of the piston cylinder (12) and fixedly connected, and the outer contour of the piston cylinder (12) near one end of the water suction hose (7) is penetrated and fixedly connected to a water outlet pipe (13), and the piston cylinder ( 12) A detection probe (17) for monitoring water quality is fixedly connected to the inner wall of the bottom end; the inner walls of the water extraction hose (7) and the water outlet pipe (13) close to the piston cylinder (12) are fixedly connected to a liquid inlet valve (701) and a liquid discharge valve (131); the inner wall of the piston cylinder (12) is connected to a piston rod (14) for extracting water at different depths, and the end of the piston rod (14) is fixedly connected to a rectangular frame (15); the ratchet wheel (9) is fixedly connected to a support block (16) for pulling the piston rod (14) to move up and down, and the support block (16) passes through the inner wall of the rectangular frame (15) and movably supports it.

2. The water quality monitoring device for environmental engineering according to claim 1, characterized in that: The filter barrel (6) is provided with a cleaning mechanism for scraping off surface impurities, the cleaning mechanism comprising a threaded sleeve (18) which penetrates the bottom of the filter barrel (6) and is rotatably connected thereto, a weight (19) which is fixedly connected to the outer contour of the bottom end of the threaded sleeve (18) and drives the filter barrel (6) to settle, a plurality of evenly placed scrapers (20) are fixedly connected to the weight (19) near the edge, and the scrapers (20) are in close contact with the outer contour of the filter barrel (6) and are movably connected thereto.

3. The water quality monitoring device for environmental engineering according to claim 2, characterized in that: The weight block (19) is provided with a disengaging mechanism for shielding the waterweeds, and the disengaging mechanism comprises a plurality of evenly placed connecting seats (24) fixedly connected to the outer contour of the weight block (19).

4. The water quality monitoring device for environmental engineering according to claim 3, characterized in that: Each of the connection seats (24) is rotatably connected to a baffle (25) via a pin shaft for blocking the water plants around the filter barrel (6).

5. The water quality monitoring device for environmental engineering according to claim 4, characterized in that: The inner wall of the fixed cylinder (5) is connected to a piston plate (21) for lifting and movement, and the bottom of the piston plate (21) is fixedly connected to a threaded rod (23) for driving the threaded sleeve (18) to rotate, and the bottom end of the threaded rod (23) penetrates the inner wall of the threaded sleeve (18) and is screwed, and air bags (22) are penetrated and fixedly connected at symmetrical positions on both sides of the fixed cylinder (5) near the end.

6. The water quality monitoring device for environmental engineering according to claim 5, characterized in that: A movable sleeve (26) is rotatably connected to the outer contour of the bottom end of the threaded rod (23), and an L-shaped pull rod (27) for pulling the baffle plate (25) to expand and contract is fixedly connected to the outer contour of the movable sleeve (26) at a position corresponding to the connecting seat (24).

7. The water quality monitoring device for environmental engineering according to claim 6, characterized in that: A movable groove (251) for movably supporting the L-shaped pull rod (27) is provided on one side of each baffle plate (25), and an end of each L-shaped pull rod (27) passes through the inner wall of the movable groove (251) at a corresponding position and is movably connected.

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