Surface water quality monitoring device

Abstract

The utility model discloses a surface water quality monitoring device which comprises a box body, the front side of the box body is connected with a box door through a hinge, and the front side of the box door is provided with a hidden handle. When the surface water quality monitoring device is used, a container containing surface water is placed in a placing groove, and a first threaded rod can be driven to rotate by rotating a hand wheel; when a first servo motor is started to drive a second threaded rod to rotate, a detection head extends into the container for monitoring, a second servo motor drives a sleeve to rotate, the sleeve can rotate to drive a plurality of stirring blades to rotate, and thus surface water in the container can be stirred. The mounting plate is attached to the top of the container, water is prevented from overflowing when surface water is stirred, clockwise and anticlockwise rotation of the surface water can be achieved through work of the second servo motor, and then the defect that when the surface water is still in the container for monitoring, particulate matter precipitation causes inaccurate measurement data is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality monitoring, in particular to a surface water quality monitoring device. Background Art

[0002] Surface water refers to the general term for dynamic water and static water on the surface of land, also known as "land water", including various liquid and solid water bodies, mainly rivers, lakes, swamps, glaciers, ice sheets, etc. It is one of the important sources of water for human life and a major component of water resources in various countries.

[0003] Comparative public patent: CN202321648982.6, discloses a surface water quality monitoring device, relates to the field of measurement technology, includes a water quality monitoring frame, a positioning support body is arranged on the inner side of the water quality monitoring frame, and a monitoring support body is arranged on the inner side of the water quality monitoring frame. When the teeth on the rotating ring are separated from the positioning support body, the positioning support body is driven to reset by the torsion performance of the twisted torsion spring. At this time, the surface water in the container inside the positioning support body will fluctuate clockwise and counterclockwise to form a flow, so that the surface can always be in a flowing state during monitoring, thereby reducing the disadvantage of inaccurate measurement data caused by the precipitation of particles when the surface water is stationary in the container for monitoring.

[0004] However, when this solution is used for water quality monitoring, the surface water storage container is driven to rotate, thereby achieving the effect of clockwise and counterclockwise rotation of the surface water. Due to the weight of the container itself plus the weight of the surface water, when the container is rotated, if the rotation speed is low, the container cannot be driven to rotate quickly, and if the rotation speed is fast, it is easy to cause the surface water in the container to overflow, which is inconvenient to use. In addition, after the monitoring branch drives the detection head into the surface water for monitoring, the detection head cannot be cleaned, which not only affects the storage of the device, but also affects the accuracy of subsequent monitoring. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, one of the purposes of the utility model is to provide a surface water quality monitoring device.

[0006] One of the purposes of the utility model is achieved by the following technical solution:

[0007] The drain pipe is connected with the water storage cavity by the water storage cavity, and the drain pipe is connected with the water storage cavity by the water storage cavity. The bottom end of the drain pipe passes through the bottom of the box body and is provided with a pipe valve. A plurality of drainage holes are evenly provided at the bottom of the placement groove, and storage grooves are provided on the left and right sides of the inner cavity of the placement groove. A clamping mechanism is provided in the inner cavity of the placement groove. A mounting plate is provided directly above the mounting plate, and a monitoring support is fixedly installed at the top center of the mounting plate. A detection head is fixedly connected to the bottom of the monitoring support, and the bottom end of the detection head passes through the mounting plate and extends to support the bottom of the mounting plate. A sleeve is provided on the outer wall of the detection head, and an annular cavity is provided on the sleeve, and a plurality of drainage holes are evenly provided on the inner wall of the sleeve. A spray hole, and a cleaning brush is fixedly connected to the inner wall of the sleeve, a plurality of stirring blades are fixedly connected to the outer wall of the sleeve, a fixing ring is sleeved and fixed at the top of the outer wall of the sleeve, and a movable ring is rotatably connected to the outer wall of the sleeve, and the left and right sides of the movable ring are fixedly connected with load-bearing rods, and the other end of the load-bearing rod is fixedly connected to the bottom of the mounting plate, a liquid storage box is fixedly connected to the right side of the inner cavity of the box body, and a water pump is fixedly installed on the top of the liquid storage box, a liquid extraction pipe is fixedly connected to the right side of the water pump, and the other end of the liquid extraction pipe passes through the top of the liquid storage box and extends to the inner cavity of the liquid storage box near the bottom, an infusion hose is fixedly connected to the left side of the water pump, and the other end of the infusion hose passes through the mounting plate and the sleeve, and is connected to the inner cavity of the annular cavity, an injection pipe is plugged and fixed to the top of the liquid storage box, and the other end of the injection pipe passes through the right side wall of the box body and extends to the outside of the box body, a rotating mechanism is provided on the outside of the sleeve, and a lifting mechanism is provided on the top of the mounting plate.

[0008] Furthermore, support legs are fixedly connected to the bottom of the box body near the four corners, and anti-skid plates are fixedly connected to the bottom ends of the support legs.

[0009] Furthermore, the clamping mechanism includes two clamping plates, and the two clamping plates are respectively located in the inner cavities of the two storage grooves, adjacent sides of the two clamping plates are fixedly connected with clamping pads, and the bottoms of the two clamping plates are fixedly connected with sliding rods, the bottoms of the inner cavities of the two storage grooves are provided with limiting grooves matching the sliding rods, and the bottom ends of the two sliding rods respectively penetrate the inner cavities of adjacent limiting grooves and are fixedly connected with threaded sleeves, the inner cavities of the two threaded sleeves have opposite thread directions, and the inner cavities of the two threaded sleeves are screwed with the same first threaded rod, the left end of the first threaded rod is rotatably connected to the left side wall of the inner cavity of the water storage cavity, a first through hole is provided on the right side of the fixed seat, and the right end of the first threaded rod penetrates the inner cavity of the first through hole and is fixedly connected with a hand wheel.

[0010] Furthermore, the lifting mechanism includes an L-shaped rod, and one end of the L-shaped rod is fixedly connected to the top of the mounting plate, and the other end of the L-shaped rod is fixedly connected to a lifting block, a threaded hole is provided at the top and bottom of the lifting block, and a second threaded rod is screwed into the inner cavity of the threaded hole, and the bottom end of the second threaded rod is rotatably connected to the bottom of the inner cavity of the box body, a second through-hole is provided at the top of the box body, and a fixing plate is fitted at the top of the second through-hole, the bottom of the fixing plate is fixedly connected to the box body, and a circular hole is provided on the fixing plate, a first servo motor is fixedly installed on the top of the fixing plate, and the top of the second threaded rod passes through the second through-hole, extends to the inner cavity of the circular hole, and is fixedly connected to the power output end of the first servo motor.

[0011] Furthermore, a sliding block is fixedly connected to the left side of the lifting block, a sliding groove is provided on the left side of the inner cavity of the box body, and the sliding block is slidably connected to the inner cavity of the sliding groove.

[0012] Furthermore, the rotating mechanism includes a driven gear, and the driven gear is sleeved and fixed on the outer wall of the sleeve, the right side of the driven gear is meshed with a transmission gear, and a square hole round tube is fixed through the center of the transmission gear, a bearing is fixedly connected to the mounting plate near the right side, and the top of the square hole round tube penetrates the inner cavity of the bearing, the inner cavity of the square hole round tube is slidably connected with a rotating square rod, and the top of the rotating square rod is rotatably connected to the top of the inner cavity of the box body, a second servo motor is fixedly installed near the right side of the top of the inner cavity of the box body, and the power output end of the second servo motor is fixedly connected with a driving gear, the left side of the driving gear is meshed with a passive gear, and the passive gear is sleeved and fixed on the outer wall of the rotating square rod.

[0013] Furthermore, an internal thread is provided at the bottom of the inner wall of the sleeve, and an annular sealing cover is screwed to the bottom of the inner cavity of the sleeve through the internal thread. The annular sealing cover is sleeved on the outer wall of the detection head, and handles are fixedly connected to the left and right sides of the bottom of the annular sealing cover.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Put the container containing surface water into the placement groove, and turn the hand wheel to drive the first threaded rod to rotate, and drive the two threaded sleeves to move relatively, so as to drive the two clamping plates to clamp the container. When the first servo motor is started to drive the second threaded rod to rotate, the second threaded rod rotates to drive the lifting block to move vertically downward, and drives the mounting plate to move downward, so as to extend the detection head into the container for monitoring. The sleeve can be driven to rotate through the transmission connection of the second servo motor, the driving gear, the passive gear, the rotating square rod, the square hole round tube, the transmission gear and the driven gear. The rotation of the sleeve can drive several stirring blades to rotate, so as to stir the surface water in the container. The mounting plate fits with the top of the container to prevent water from overflowing when stirring the surface water. The clockwise and counterclockwise rotation of the surface water can be realized through the operation of the second servo motor, thereby reducing the disadvantage of inaccurate measurement data caused by the precipitation of particles when the surface water is stationary in the container for monitoring;

[0016] 2. Through the arrangement of the liquid storage box, the liquid injection tube, the water pump, the liquid extraction tube, the liquid infusion hose, the annular cavity, the liquid spray hole and the cleaning brush, when the detection head is in good condition, first, the handle on one side is turned to drive the annular sealing cover to rotate, so that the annular sealing cover can be unscrewed from the sleeve, and then the water pump is started to pump the cleaning liquid in the liquid storage box into the annular cavity, and spray the liquid onto the surface of the detection head through several liquid spray holes, and the rotation of the sleeve can drive the cleaning brush to rotate synchronously, so that the detection head can be automatically cleaned, and the cleaning waste liquid is discharged into the placement tank, and the waste liquid is discharged into the water storage cavity through several drainage holes. Subsequently, only the pipe valve needs to be opened to discharge the waste liquid from the drain pipe, which is not only convenient for cleaning and storage of the device after use, but also conducive to improving the accuracy of the data during subsequent monitoring.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional diagram of this embodiment;

[0019] Figure 2 This is a schematic diagram of the main structure of this embodiment;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the component mounting plate of this embodiment;

[0021] Figure 4This is a schematic diagram of the three-dimensional structure of the component fixing seat of this embodiment;

[0022] Figure 5 for Figure 2 A magnified view of the structure at center A;

[0023] Figure 6 for Figure 2 A magnified view of the structure at point B.

[0024] In the figure: 1, box body; 2, support leg; 3, box door; 4, hidden handle; 5, fixed seat; 6, placement slot; 7, water storage chamber; 8, drainage pipe; 9, clamping plate; 10, clamping pad; 11, threaded sleeve; 12, first threaded rod; 13, hand wheel; 14, mounting plate; 15, monitoring support; 16, detection head; 17, L-shaped rod; 18, lifting block; 19, second threaded rod; 20, first servo motor; 21, sleeve; 22, stirring blade ; 23. Driven gear; 24. Transmission gear; 25. Square hole round tube; 26. Rotating square rod; 27. Passive gear; 28. Second servo motor; 29. ​​Driving gear; 30. Movable ring; 31. Fixed ring; 32. Load-bearing rod; 33. Annular cavity; 34. Spray hole; 35. Cleaning brush; 36. Infusion hose; 37. Liquid storage box; 38. Liquid injection tube; 39. Water pump; 40. Liquid extraction tube; 41. Annular sealing cover; 42. Handle. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0026] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0028] See also Figures 1 to 6 , the utility model provides the following technical solutions:

[0029] Embodiment 1:

[0030] A surface water quality monitoring device comprises a box body 1, wherein the front side hinge of the box body 1 is connected to a box door 3, and a hidden handle 4 is arranged on the front side of the box door 3, a fixing seat 5 is fixedly connected to the bottom of the inner cavity of the box body 1, and a placement groove 6 is provided on the top of the fixing seat 5, a water storage cavity 7 is provided on the fixing seat 5 near the bottom, and a drainage pipe 8 connected to the water storage cavity 7 is plugged and fixed to the bottom of the fixing seat 5, the bottom end of the drainage pipe 8 passes through the bottom of the box body 1, and a pipe valve is arranged, a plurality of drainage holes are evenly arranged at the bottom of the placement groove 6, and storage grooves are arranged on the left and right sides of the inner cavity of the placement groove 6, a clamping mechanism is arranged in the inner cavity of the placement groove 6, a mounting plate 14 is arranged directly above the fixing seat 5, and a monitoring support 15 is fixedly installed at the center of the top circle of the mounting plate 14, a detection head 16 is fixedly connected to the bottom of the monitoring support 15, and the bottom end of the detection head 16 passes through the mounting The plate 14 is extended to support the bottom of the mounting plate 14. The outer wall of the detection head 16 is sleeved with a sleeve 21, and an annular cavity 33 is opened on the sleeve 21. A plurality of liquid spray holes 34 are evenly opened on the inner wall of the sleeve 21, and a cleaning brush 35 is fixedly connected to the inner wall of the sleeve 21. A plurality of stirring blades 22 are fixedly connected to the outer wall of the sleeve 21. A fixing ring 31 is sleeved and fixed at the top of the outer wall of the sleeve 21, and a movable ring 30 is rotatably connected to the outer wall of the sleeve 21. The left and right sides of the movable ring 30 are fixedly connected with a load-bearing rod 32, and the other end of the load-bearing rod 32 is fixedly connected to the bottom of the mounting plate 14. A rotating mechanism is provided on the outer side of the sleeve 21, and a lifting mechanism is provided on the top of the mounting plate 14. The bottom of the box body 1 is fixedly connected with support legs 2 near the four corners, and the bottom ends of the support legs 2 are fixedly connected with anti-skid plates to improve the stability of the box body 1 during operation.

[0031] The clamping mechanism includes two clamping plates 9, and the two clamping plates 9 are respectively located in the inner cavity of the two storage grooves, the adjacent sides of the two clamping plates 9 are fixedly connected with clamping pads 10, and the bottoms of the two clamping plates 9 are fixedly connected with sliding rods, the bottoms of the inner cavities of the two storage grooves are provided with limiting grooves matching the sliding rods, and the bottom ends of the two sliding rods respectively penetrate the inner cavities of adjacent limiting grooves, and are fixedly connected with threaded sleeves 11, the inner cavity threads of the two threaded sleeves 11 are in opposite directions, and the inner cavities of the two threaded sleeves 11 are screwed with the same first threaded rod 12, the left end of the first threaded rod 12 is rotatably connected to the left side wall of the inner cavity of the water storage chamber 7, a first through hole is opened on the right side of the fixed seat 5, and the right end of the first threaded rod 12 penetrates the inner cavity of the first through hole, and is fixedly connected with a hand wheel 13.

[0032] The lifting mechanism includes an L-shaped rod 17, and one end of the L-shaped rod 17 is fixedly connected to the top of the mounting plate 14, and the other end of the L-shaped rod 17 is fixedly connected to a lifting block 18, and a slider is fixedly connected to the left side of the lifting block 18, a slide groove is opened on the left side of the inner cavity of the box body 1, and the slider is slidably connected to the inner cavity of the slide groove, and threaded holes are opened at the top and bottom of the lifting block 18, and the inner cavity of the threaded hole is screwed with a second threaded rod 19, and the bottom end of the second threaded rod 19 is rotatably connected to the bottom of the inner cavity of the box body 1, a second through hole is opened at the top of the box body 1, and a fixing plate is fitted on the top of the second through hole, the bottom of the fixing plate is fixedly connected to the box body 1, and a circular hole is opened on the fixing plate, and a first servo motor 20 is fixedly installed on the top of the fixing plate, and the top of the second threaded rod 19 passes through the second through hole, extends to the inner cavity of the circular hole, and is fixedly connected to the power output end of the first servo motor 20.

[0033] The rotating mechanism includes a driven gear 23, and the driven gear 23 is sleeved and fixed on the outer wall of the sleeve 21. A transmission gear 24 is meshed on the right side of the driven gear 23, and a square hole round tube 25 is fixed through the center of the transmission gear 24. A bearing is fixedly connected to the mounting plate 14 near the right side, and the top of the square hole round tube 25 penetrates the inner cavity of the bearing, and a rotating square rod 26 is slidably connected to the inner cavity of the square hole round tube 25, and the top of the rotating square rod 26 is rotatably connected to the top of the inner cavity of the box body 1. A second servo motor 28 is fixedly installed on the top of the inner cavity of the box body 1 near the right side, and the power output end of the second servo motor 28 is fixedly connected to a driving gear 29, and a passive gear 27 is meshed on the left side of the driving gear 29, and the passive gear 27 is sleeved and fixed on the outer wall of the rotating square rod 26.

[0034] Working principle: When the utility model is used, first, the container containing surface water is placed in the placement groove 6, and the first threaded rod 12 can be driven to rotate by turning the hand-cranked wheel 13, and the two threaded sleeves 11 can be driven to move relatively, thereby driving the two clamping plates 9 to clamp and fix the container. When the first servo motor 20 is started to drive the second threaded rod 19 to rotate, the rotation of the second threaded rod 19 drives the lifting block 18 to move vertically downward, and drives the mounting plate 14 to move downward, so that the detection head 16 is extended into the container for monitoring, and the top of the container is sealed through the mounting plate 14. When the second servo motor 28 is started, the driving gear 29 can be driven to rotate, and the driving gear 2 The rotation of the driven gear 27 drives the driven gear 27 to rotate, the rotation of the driven gear 27 drives the rotating square rod 26 to rotate, the rotation of the rotating square rod 26 drives the square hole round tube 25 to rotate, the rotation of the square hole round tube 25 drives the sleeve 21 to rotate through the meshing of the transmission gear 24 and the driven gear 23, the rotation of the sleeve 21 can drive a plurality of stirring blades 22 to rotate, so that the surface water in the container can be stirred, and the mounting plate 14 is fitted with the top of the container to prevent water from overflowing when stirring the surface water, and the clockwise and counterclockwise rotation of the surface water can be realized through the operation of the second servo motor 28, thereby reducing the disadvantage of inaccurate measurement data caused by the precipitation of particles when the surface water is stationary in the container for monitoring.

[0035] Embodiment 2:

[0036] A liquid storage box 37 is fixedly connected to the right side of the inner cavity of the box body 1, and a water pump 39 is fixedly installed on the top of the liquid storage box 37, a liquid extraction tube 40 is fixedly connected to the right side of the water pump 39, and the other end of the liquid extraction tube 40 passes through the top of the liquid storage box 37 and extends to the inner cavity of the liquid storage box 37 near the bottom, a liquid infusion hose 36 is fixedly connected to the left side of the water pump 39, and the other end of the liquid infusion hose 36 passes through the mounting plate 14 and the sleeve 21, and is connected to the inner cavity of the annular cavity 33, a liquid injection tube 38 is plugged and fixed on the top of the liquid storage box 37, and the other end of the liquid injection tube 38 passes through the right side wall of the box body 1 and extends to the outside of the box body 1, an internal thread is provided at the bottom of the inner wall of the sleeve 21, and an annular sealing cover 41 is screwed to the bottom of the inner cavity of the sleeve 21 through the internal thread, the annular sealing cover 41 is sleeved on the outer wall of the detection head 16, and the bottom of the annular sealing cover 41 is fixedly connected to the left and right sides.

[0037] Working principle: When the utility model is in use, after the detection head 16 is used up, first, the handle 42 on one side is turned to drive the annular sealing cover 41 to rotate, so that the annular sealing cover 41 can be unscrewed from the sleeve 21, and then the water pump 39 is started to pump the cleaning liquid in the liquid storage box 37 into the annular cavity 33, and spray the liquid to the surface of the detection head 16 through a plurality of spray holes 34, and the rotation of the sleeve 21 can drive the cleaning brush 35 to rotate synchronously, so that the detection head 16 can be automatically cleaned, and the cleaning waste liquid is discharged into the placement groove 6, and the waste liquid is discharged into the water storage cavity 7 through a plurality of drainage holes. Subsequently, only the pipe valve needs to be opened to discharge the waste liquid from the drain pipe 8, which is not only convenient for cleaning and storing the device after use, but also conducive to improving the accuracy of the data during subsequent monitoring.

[0038] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A surface water quality monitoring device, comprising a housing (1), characterized in that: The front hinge of the box body (1) is connected to a box door (3), and a hidden handle (4) is arranged on the front side of the box door (3). The bottom of the inner cavity of the box body (1) is fixedly connected to a fixing seat (5), and a placement groove (6) is provided on the top of the fixing seat (5). A water storage cavity (7) is provided on the fixing seat (5) near the bottom, and a drainage pipe (8) connected to the water storage cavity (7) is plugged and fixed to the bottom of the fixing seat (5). The bottom end of the drainage pipe (8) passes through the bottom of the box body (1) and is provided with a pipe valve. A plurality of drainage holes are evenly arranged at the bottom of the placement groove (6), and the left and right sides of the inner cavity of the placement groove (6) are provided with drainage holes. The receiving groove (6) is provided with a clamping mechanism in the inner cavity, a mounting plate (14) is provided just above the fixing seat (5), and a monitoring support (15) is fixedly installed at the center of the top circle of the mounting plate (14), a detection head (16) is fixedly connected to the bottom of the monitoring support (15), and the bottom end of the detection head (16) passes through the mounting plate (14) and extends to the bottom of the mounting plate (14), the outer wall of the detection head (16) is sleeved with a sleeve (21), and an annular cavity (33) is opened on the sleeve (21), and a plurality of liquid spray holes (34) are evenly opened on the inner wall of the sleeve (21), and the inner wall of the sleeve (21) is fixedly A cleaning brush (35) is connected, a plurality of stirring blades (22) are fixedly connected to the outer wall of the sleeve (21), a fixed ring (31) is sleeved and fixed at the top of the outer wall of the sleeve (21), and a movable ring (30) is rotatably connected to the outer wall of the sleeve (21), a load-bearing rod (32) is fixedly connected to the left and right sides of the movable ring (30), and the other end of the load-bearing rod (32) is fixedly connected to the bottom of the mounting plate (14), a liquid storage box (37) is fixedly connected to the right side of the inner cavity of the box body (1), and a water pump (39) is fixedly installed on the top of the liquid storage box (37), and a liquid extraction pipe (40) is fixedly connected to the right side of the water pump (39), The other end of the liquid extraction tube (40) passes through the top of the liquid storage box (37) and extends to the inner cavity of the liquid storage box (37) near the bottom. The left side of the water pump (39) is fixedly connected to a liquid infusion hose (36), and the other end of the liquid infusion hose (36) passes through the mounting plate (14) and the sleeve (21) and is in communication with the inner cavity of the annular cavity (33). The top of the liquid storage box (37) is plugged and fixed with a liquid injection tube (38), and the other end of the liquid injection tube (38) passes through the right side wall of the box body (1) and extends to the outside of the box body (1). A rotating mechanism is provided on the outside of the sleeve (21), and a lifting mechanism is provided on the top of the mounting plate (14).

2. A surface water quality monitoring device as claimed in claim 1, characterized in that: The bottom of the box body (1) is fixedly connected to support legs (2) near the four corners, and the bottom ends of the support legs (2) are fixedly connected to anti-slip plates.

3. A surface water quality monitoring device as claimed in claim 1, characterized in that: The clamping mechanism comprises two clamping plates (9), and the two clamping plates (9) are respectively located in the inner cavities of the two receiving grooves, and the adjacent sides of the two clamping plates (9) are fixedly connected with clamping pads (10), and the bottoms of the two clamping plates (9) are fixedly connected with sliding rods, and the bottoms of the inner cavities of the two receiving grooves are provided with limiting grooves matching with the sliding rods, and the bottom ends of the two sliding rods respectively penetrate the inner cavities of the adjacent limiting grooves and are fixedly connected with threaded sleeves (11), the inner cavities of the two threaded sleeves (11) have opposite thread directions, and the inner cavities of the two threaded sleeves (11) are screwed with the same first threaded rod (12), the left end of the first threaded rod (12) is rotatably connected to the left side wall of the inner cavity of the water storage cavity (7), and the right side of the fixed seat (5) is provided with a first through hole, and the right end of the first threaded rod (12) penetrates the inner cavity of the first through hole and is fixedly connected with a hand wheel (13).

4. A surface water quality monitoring device as claimed in claim 1, characterized in that: The lifting mechanism comprises an L-shaped rod (17), one end of the L-shaped rod (17) is fixedly connected to the top of the mounting plate (14), the other end of the L-shaped rod (17) is fixedly connected to a lifting block (18), the top and bottom of the lifting block (18) are both provided with a threaded hole, and the inner cavity of the threaded hole is screwed with a second threaded rod (19), the bottom end of the second threaded rod (19) is rotatably connected to the bottom of the inner cavity of the box body (1), the top of the box body (1) is provided with a second through hole, and the top of the second through hole is fitted with a fixing plate, the bottom of the fixing plate is fixedly connected to the box body (1), and the fixing plate is provided with a circular hole, the top of the fixing plate is fixedly mounted with a first servo motor (20), the top end of the second threaded rod (19) passes through the second through hole, extends to the inner cavity of the circular hole, and is fixedly connected to the power output end of the first servo motor (20).

5. A surface water quality monitoring device as claimed in claim 4, characterized in that: A sliding block is fixedly connected to the left side of the lifting block (18); a sliding groove is provided on the left side of the inner cavity of the box body (1), and the sliding block is slidably connected to the inner cavity of the sliding groove.

6. A surface water quality monitoring device as claimed in claim 1, characterized in that: The rotating mechanism comprises a driven gear (23), and the driven gear (23) is sleeved and fixed on the outer wall of the sleeve (21); a transmission gear (24) is meshed on the right side of the driven gear (23), and a square hole round tube (25) is fixedly penetrated at the center of the upper circle of the transmission gear (24); a bearing is fixedly connected to the mounting plate (14) near the right side, and the top end of the square hole round tube (25) penetrates the inner cavity of the bearing; a rotating square rod (26) is slidably connected to the inner cavity of the square hole round tube (25), and the top end of the rotating square rod (26) is rotatably connected to the top of the inner cavity of the box body (1); a second servo motor (28) is fixedly installed on the top of the inner cavity of the box body (1) near the right side, and a driving gear (29) is fixedly connected to the power output end of the second servo motor (28); a driven gear (27) is meshed on the left side of the driving gear (29), and the driven gear (27) is sleeved and fixed on the outer wall of the rotating square rod (26).

7. A surface water quality monitoring device as claimed in claim 1, characterized in that: An internal thread is provided at the bottom of the inner wall of the sleeve (21), and an annular sealing cover (41) is screwed to the bottom of the inner cavity of the sleeve (21) via the internal thread. The annular sealing cover (41) is sleeved on the outer wall of the detection head (16), and handles (42) are fixedly connected to the left and right sides of the bottom of the annular sealing cover (41).

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