Underground water level dynamic monitoring system for deep foundation pit dewatering construction based on wireless sensing

Abstract

The invention discloses a wireless sensing-based underground water level dynamic monitoring system for deep foundation pit dewatering construction. The system comprises a water level acquisition module and a monitoring terminal connected with the water level acquisition module, the water level acquisition module comprises: a guide rod, the outer wall of which is provided with a floating ball mechanism; the wireless sensing detection mechanism is arranged on the guide rod; the floating ball mechanism comprises a floating ball main body, the axis of the floating ball main body is provided with a channel allowing the guide rod to penetrate, the inner walls of the upper side and the lower side of the channel are each provided with a plurality of sets of grooves, guide wheel pieces are arranged in the grooves in a sliding mode, and the guide wheel pieces are connected with the bottoms of the grooves through elastic pieces; the electromagnetic part I is embedded in the inner wall of the channel; and the anti-blocking detection mechanism is used for driving the electromagnetic part I to be powered off when detecting that the floating ball main body is submerged in water. When the anti-blocking detection mechanism detects that the floating ball main body is submerged in water, the electromagnetic part I is controlled to be powered off, so that the guide wheel part can move into the groove to extrude the spring, the floating ball main body moves upwards, and stable water level monitoring work is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of deep foundation pit water level monitoring, in particular to a groundwater level dynamic monitoring system for deep foundation pit dewatering construction based on wireless sensing. Background Art

[0002] A deep foundation pit is a pit dug before foundation construction during building construction in the construction industry. At present, during the precipitation construction process of the deep foundation pit, the change of groundwater level has an important impact on the stability of the foundation pit and the construction safety. Therefore, real-time monitoring and early warning of the groundwater level have become the key to ensure the smooth progress of the foundation pit project.

[0003] Publication No.: CN112459097B proposes a water level control device for deep foundation pit excavation in thick sandy soil, and specifically discloses a base, characterized in that: the base is fixed with a sliding mechanism, the sliding mechanism includes a support plate, a first support rod and a second support rod, the support plate is fixedly connected to the side wall of the base, the support plate is slidably connected to the first support rod at one end away from the base, the first support rod is slidably connected to the second support rod, and the second support rod is slidably connected to a spherical float; the float is fixedly connected to a pumping mechanism, and the pumping mechanism is installed at the top of the base; the second support rod is slidably connected to a limiting mechanism, the limiting mechanism includes a collar, the collar is slidably connected to the second support rod, and the collar is arranged between the first support rod and the float; although the above device can monitor the water level by moving the float on the second support rod, it still has the following defects when used:

[0004] 1. Since the second support rod is in a deep foundation pit, and there are a lot of soil, silt and other particles in the deep foundation pit, these particles are easily attached to the second support rod under the action of water flow or wind, thereby affecting the stable movement of the float with the water level to realize water level monitoring;

[0005] 2. The device cannot issue an early warning when the water level reaches the preset height, and the monitoring effect of the water level needs to be improved.

[0006] To this end, we propose a dynamic groundwater level monitoring system for deep foundation pit dewatering construction based on wireless sensing. Summary of the invention

[0007] The purpose of the present invention is to provide a groundwater level dynamic monitoring system for deep foundation pit dewatering construction based on wireless sensing to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A groundwater level dynamic monitoring system for deep foundation pit dewatering construction based on wireless sensing, including a water level acquisition module and a monitoring terminal connected thereto;

[0010] The water level acquisition module comprises: a guide rod, the outer wall of which is provided with a float mechanism that moves with the water level;

[0011] The wireless sensor detection mechanism is arranged on the guide rod and is used to send an early warning signal to the monitoring terminal when the float mechanism rises to a preset position;

[0012] The float mechanism comprises: a float body, a channel for the guide rod to pass through is opened at the axis of the float body, a plurality of grooves are opened on the upper and lower inner walls of the channel, a guide wheel is slidably arranged in the groove, and the guide wheel is connected to the bottom of the groove through an elastic member;

[0013] Electromagnetic component 1, embedded in the inner wall of the channel, used for energizing to adsorb the guide wheel component so that the guide wheel component contacts the outer wall of the guide rod;

[0014] The anti-stuck detection mechanism is arranged on the float body and is used to drive the electromagnetic component to cut off power when detecting that the float body is submerged in water.

[0015] A further improvement is that the water level detection mechanism comprises:

[0016] A top plate, arranged at the upper end of the guide rod, wherein a telescopic device is arranged on the top plate;

[0017] A bearing plate is slidably sleeved on the outer wall of the guide rod and connected to the output end of the telescopic device, and a contact sensor for contacting the float body is provided at the bottom of the bearing plate;

[0018] The electrical component is mounted on a supporting plate, and includes a housing, a wireless communicator and a controller which are arranged in the housing and electrically connected to the contact sensor. The controller is also electrically connected to an electromagnetic component and an anti-stuck detection mechanism, and the wireless communicator is also electrically connected to a monitoring terminal.

[0019] A further improvement is that a pumping device electrically connected to the controller is also provided on the mounting frame, the pumping device is connected to a pumping filter head through a pipeline, the pumping filter head is arranged on the outer wall of the float body, and the pumping device is driven to open by the controller when the contact sensor contacts the float body.

[0020] A further improvement is that the anti-stuck detection mechanism comprises:

[0021] A detection tube is embedded in the upper end of the outer wall of the float body, and a movable block is movably arranged in the detection tube. The movable block is connected to a floating plate after penetrating the top of the detection tube through a support rod. The floating plate is used to move upward when the float body is submerged in water;

[0022] Two sets of detection sensors 1 are electrically connected to the controller and are embedded in the inner wall of the detection tube from top to bottom for detecting the position of the movable block. When the detection sensor 1 below detects the movable block, the controller controls the electromagnetic component 1 to cut off the power.

[0023] A further improvement is that the float mechanism further comprises:

[0024] A plurality of groups of annular air bags are embedded in the outer wall of the float body, and two adjacent groups of annular air bags are connected to each other through connecting pipes;

[0025] A plurality of gas storage cavities are provided in the inner cavity of the float body, the gas storage cavities are filled with gas, one side of the gas storage cavities is connected to an annular airbag through a pipeline, a matching piston is movably provided in the gas storage cavities, an electromagnetic component 2 for energizing and adsorbing the piston is provided on the inner wall of one side of the gas storage cavities, the electromagnetic component 2 is electrically connected to the controller, and is used to be energized by the controller when the upper detection sensor 1 detects the movable block, the electromagnetic component 2 is energized to adsorb the piston to move and compress the gas into the annular airbag so that the annular airbag expands;

[0026] The elastic guide rod is arranged in the air storage chamber and is used to drive the piston member to reset when the electromagnetic member 2 is powered off, so as to draw the gas in the annular airbag back into the air storage chamber.

[0027] A further improvement is that the bottom wall of the detection cylinder is also provided with a second detection sensor electrically connected to the controller, and when the second detection sensor contacts the movable block, the controller controls the second electromagnetic component to be powered off and the first electromagnetic component to be powered on.

[0028] A further improvement is that the float mechanism further comprises:

[0029] The contact wheel is rotatably embedded in the middle of the inner wall of one side of the channel, the shaft of the contact wheel is connected to a driven rod through a bevel gear set, and the driven rod movably penetrates the top of the float body and extends to the top of the float body;

[0030] A gear ring is rotatably embedded in the top of the float body and is coaxial with the guide rod. The gear ring is movably sleeved on the outer wall of the guide rod and is connected to the driven rod through a gear transmission;

[0031] A plurality of cleaning brushes are arranged in a circular array on the top of the gear ring for cleaning the outer wall of the guide rod.

[0032] A further improvement is that the outer wall of the guide rod is provided with scale lines, and the top of the supporting plate is provided with an image acquisition device, which is used to acquire numerical image data of the scale lines corresponding to the supporting plate, and send the numerical image data of the scale lines to the monitoring terminal via a wireless communicator.

[0033] A further improvement is that a photovoltaic component is also provided on the mounting frame.

[0034] A further improvement is that a bottom plate is provided at the bottom of the guide rod.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] 1) When the anti-stuck detection mechanism of the present invention detects that the float body is submerged in water, it controls the electromagnetic part to be powered off, so that the guide wheel part can move into the groove to squeeze the spring, so as to eliminate or alleviate the blocking state between the float body and the guide rod under the buoyancy of the float body, so that the float body can move upward; at the same time, the annular airbag can be expanded to increase the drainage area of ​​the float body and increase the upward buoyancy of the float body, so that the float body can better move upward over obstacles and float to the surface, avoiding the situation where the float body cannot move upward with the water level due to the influence of attached particles, thereby ensuring stable water level monitoring work;

[0037] 2) The present invention also causes the contact wheel to rotate when the float body moves along the guide rod. The rotation of the contact wheel causes the toothed ring to drive the cleaning brush to rub and clean the outer wall of the guide rod, effectively removing particles attached to the outer wall of the guide rod, and further ensuring that the float stably moves along the outer wall of the guide rod with the water level;

[0038] 3) The present invention also provides a contact sensor on the supporting plate. When the contact sensor contacts the float body, an early warning signal can be sent to the monitoring terminal through an electrical device, so that users can understand the water level changes at the first time, and then take timely measures to avoid potential safety hazards. At the same time, the height of the supporting plate can be controlled by the telescopic device in conjunction with the image acquisition device and the scale lines on the guide rod, so the height of the early warning water level can be adjusted, which is more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the structure of the water level acquisition module of the present invention;

[0040] Figure 2 For the present invention Figure 1 Structural cross-section view;

[0041] Figure 3 For the present invention Figure 2 A magnified view of the structure A;

[0042] Figure 4 It is a cross-sectional view of the main structure of the float of the present invention;

[0043] Figure 5 It is a cross-sectional view of the main structure of the floating ball of the present invention from another perspective;

[0044] Figure 6 It is a schematic diagram of the contact wheel structure of the present invention.

[0045] In the figure: 1. guide rod; 2. float body; 3. groove; 4. guide wheel component; 5. electromagnetic component 1; 6. elastic component; 7. detection tube; 8. floating plate; 9. movable block; 10. detection sensor 1; 11. air storage chamber; 12. piston component; 13. electromagnetic component 2; 14. elastic guide rod; 15. annular air bag; 16. connecting pipeline; 17. contact wheel; 18. gear; 19. bevel gear set; 20. gear ring; 21. cleaning brush; 22. top plate; 23. telescopic device; 24. bearing plate; 25. contact sensor; 26. electrical component; 27. mounting frame; 28. pumping equipment; 29. ​​photovoltaic component; 30. image acquisition equipment; 31. pumping filter head; 32. bottom plate. DETAILED DESCRIPTION

[0046] 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.

[0047] See also Figure 1-Figure 4 , a groundwater level dynamic monitoring system for deep foundation pit dewatering construction based on wireless sensing, including at least one water level acquisition module and a monitoring terminal connected thereto;

[0048] The water level acquisition module can be arranged in a deep foundation pit (e.g., a precipitation well in a precipitation construction) to monitor the dynamics of the groundwater level;

[0049] The water level acquisition module comprises: a guide rod 1, the outer wall of which is provided with a float mechanism that moves along the guide rod 1 along with the water level, the height of the guide rod 1 is selected according to the depth of the position to be monitored, and the bottom of the guide rod 1 is provided with a bottom plate 32, which is used to make the bottom plate 32 contact with the bottom end of the position to be monitored;

[0050] The wireless sensor detection mechanism is arranged on the guide rod 1 and is used to send an early warning signal to the monitoring terminal when the float mechanism rises to a preset position;

[0051] The monitoring terminal is a conventional device in this field. The monitoring terminal includes an early warning module for receiving early warning signals and issuing early warnings, so that the monitoring terminal can understand and timely control the water level of the location to be monitored;

[0052] The float mechanism includes: a float body 2, a channel for the guide rod 1 to penetrate is opened at its axis, the diameter of the channel is slightly larger than the diameter of the guide rod 1, a plurality of groups of grooves 3 are opened on the inner walls of the upper and lower sides of the channel, a guide wheel 4 is slidably arranged in the groove 3, the guide wheel 4 includes a magnetic guide wheel frame and a guide wheel rotatably arranged on the outer wall of the guide wheel frame, the guide wheel 4 is connected to the bottom of the groove 3 through an elastic member 6, and the elastic member 6 is, for example, a spring;

[0053] The electromagnetic component 15 is an electromagnetic plate structure, embedded in the inner wall of the channel, and is used to energize and adsorb the guide wheel component 4 so that the guide wheel component 4 contacts the outer wall of the guide rod 1, specifically adsorbing the guide wheel frame. In normal use, the electromagnetic component 15 is energized, and the guide wheel component 4 contacts the outer wall of the guide rod 1 and cannot move horizontally, so that the float body 2 is not easy to shake on the outer wall of the guide rod 1, so that it can move up and down stably;

[0054] The anti-stuck detection mechanism is arranged on the float body 2, and is used for detecting that the float body 2 is submerged in water and driving the electromagnetic part 5 to cut off the power. The particles attached to the outer wall of the guide rod 1 make it impossible for the float body 2 to move upward on the guide rod 1 with the water level, resulting in that when the float body 2 is submerged in water, the anti-stuck detection mechanism detects it and drives the electromagnetic part 5 to cut off the power, and then the guide wheel 4 is in an active state and can move into the groove 3 to squeeze the spring. Under the cooperation of the rising buoyancy of the float body 2, the float body 2 can go over the obstacle upward, thereby alleviating or eliminating the stuck state between the float body 2 and the guide rod 1.

[0055] Preferably, the water level detection mechanism of this embodiment includes:

[0056] A top plate 22 is provided at the upper end of the guide rod 1, and a telescopic device 23 is provided on the top plate 22, and the telescopic device 23 is, for example, an electric telescopic rod;

[0057] The bearing plate 24 is slidably sleeved on the outer wall of the guide rod 1 and connected to the output end of the telescopic device 23. The bottom of the bearing plate 24 is provided with a contact sensor 25 for contacting the float body 2. The contact sensor 25 is a conventional device in the art and will not be described in detail here.

[0058] The electrical device 26 is arranged on the bearing plate 24 through the mounting frame 27. The mounting frame 27 can be installed on the top ground of the position to be monitored (for example, the top of the precipitation well). The electrical device 26 includes a housing, and a wireless communicator and a controller arranged in the housing and electrically connected to the contact sensor 25. The wireless communicator is used to enable the water level acquisition module to communicate remotely with the monitoring terminal. The controller is also electrically connected to the electromagnetic component 5 and the anti-stuck detection mechanism. The wireless communicator is also electrically connected to the monitoring terminal. The controller is used to control the electrical equipment in the water level acquisition module. When the contact sensor 25 contacts the float body 2, it sends an early warning signal to the monitoring terminal through the wireless communicator.

[0059] Preferably, the mounting frame 27 of the present embodiment is further provided with a pumping device 28 electrically connected to the controller. The pumping device 28 is, for example, a water pump. The pumping device 28 is connected to a pumping filter head 31 through a pipeline. The pumping filter head 31 is, for example, a pumping head with a filter mesh inside. The pumping filter head 31 is arranged on the outer wall of the float body 2. When the contact sensor 25 contacts the float body 2, the pumping device 28 is driven to open by the controller. In this way, the water level in the monitored position can be effectively prevented from being too high, the water level can be controlled, and the subsequent construction operations can be avoided from being affected.

[0060] Preferably, the anti-stuck detection mechanism of this embodiment includes:

[0061] The detection tube 7 is embedded in the upper end of the outer wall of the float body 2. A movable block 9 is movably provided in the detection tube 7. The movable block 9 is movably penetrated through the top of the detection tube 7 by a support rod and then connected to a floating plate 8. The floating plate 8 is used to move upward when the float body 2 is submerged in water.

[0062] Two groups of detection sensors 10 are electrically connected to the controller and are embedded in the inner wall of the detection tube 7 from top to bottom with a spacing, and are used to detect the position of the movable block 9. When the lower detection sensor 10 detects the movable block 9, the controller controls the electromagnetic component 5 to cut off the power. The detection sensor 10 can adopt a photoelectric sensor or an infrared sensor, etc. When the float body 2 cannot rise with the water level on the outer wall of the guide rod 1, the float body 2 will be submerged in the water. At this time, the floating plate 8 drives the movable block 9 upward with the water level, and then the lower detection sensor 10 detects the movable block 9, and the electromagnetic component 5 is cut off to make the guide wheel 4 active, so that the float body 2 is upward.

[0063] Preferably, the float mechanism of this embodiment further includes:

[0064] A plurality of groups of annular airbags 15 are embedded in the outer wall of the float body 2, and two adjacent groups of annular airbags 15 are connected to each other through a connecting pipe 16. The annular airbags 15 can be rubber annular airbags 15;

[0065] A plurality of gas storage chambers 11 are provided in the inner cavity of the float body 2. The gas storage chambers 11 are filled with gas. One side of the gas storage chamber 11 is connected to an annular air bag 15 through a pipeline. A piston member 12 is movably provided in the gas storage chamber 11. The piston member 12 is a magnetic plate-like structure. An electromagnetic member 13 is provided on the inner wall of one side of the gas storage chamber 11 to energize and adsorb the piston member 12. The electromagnetic member 13 is an electromagnetic ring. The electromagnetic member 13 is electrically connected to the controller and is used to control the controller to energize when the upper detection sensor 10 detects the movable block 9. The electromagnetic member 13 is energized to adsorb the piston The movement of the component 12 compresses the gas into the annular airbag 15, so that the annular airbag 15 expands. Initially, the annular airbag 15 is in an unexpanded state. When the water level of the floating plate 8 drives the movable block 9 upward to the second detection sensor above, it means that the guide wheel component 4 is in an active state and does not cause the float body 2 to move upward, so that the gas in the air storage chamber 11 enters the annular airbag 15, so that the annular airbag 15 expands, increases the drainage area of ​​the float body 2, and increases the upward buoyancy of the float body 2, so that the float body 2 can better move upward over obstacles and float to the surface;

[0066] The elastic guide rod 14 is arranged in the air storage chamber 11, and is used to drive the piston member 12 to reset when the electromagnetic member 13 is powered off, so as to draw the gas in the annular airbag 15 back into the air storage chamber 11. The elastic guide rod 14 includes a guide rod horizontally arranged in the air storage chamber 11 and movably passing through the piston member 12, and a spring sleeved on the outer wall of the guide rod, one end of which is connected to the inner wall of one side of the air storage chamber 11, and the other end is connected to the piston member 12.

[0067] Preferably, the bottom wall of the detection tube 7 of this embodiment is also provided with a detection sensor 2 electrically connected to the controller. When the detection sensor 2 contacts the movable block 9, the controller controls the electromagnetic component 2 13 to de-energize and the electromagnetic component 1 5 to energize. The detection sensor 2 is, for example, a pressure sensor. When the float body 2 resumes its movement and floats upward to the surface of the water, the float plate 8 loses its buoyancy and moves downward under its own gravity and that of the movable block 9 to reset and contact the detection sensor 2. Then the detection sensor 2 sends a signal to cause the controller to control the electromagnetic component 2 13 to de-energize and the electromagnetic component 1 5 to energize. When the electromagnetic component 1 5 is energized, the guide wheel component 4 contacts the outer wall of the guide rod 1, the electromagnetic component 2 13 is de-energized, and the piston component 12 draws the gas in the annular airbag 15 back to the air storage chamber 11.

[0068] See also Figure 5-Figure 6 As a preference, the float mechanism of this embodiment further comprises:

[0069] The contact wheel 17 is rotatably embedded in the middle of the inner wall of one side of the channel. The contact wheel 17 is always in contact with the outer wall of the guide rod 1 and can be made of rubber material. The contact wheel 17 rotates when the float body 2 moves on the outer wall of the guide rod 1. The shaft of the contact wheel 17 is connected to a driven rod through a bevel gear set 19. The driven rod movably passes through the top of the float body 2 and extends to the top of the float body 2. The bevel gear set 19 is two sets of meshing bevel gears.

[0070] The gear ring 20 is rotatably embedded in the top of the float body 2 through a bearing and is coaxial with the guide rod 1. The gear ring 20 is movably sleeved on the outer wall of the guide rod 1 and is connected to the driven rod through the gear 18;

[0071] A plurality of cleaning brushes 21 are arranged in a circular array on the top of the gear ring 20 for cleaning the outer wall of the guide rod 1 .

[0072] When the float body 2 is upward, the contact wheel 17 rotates under the action of friction, and then drives the driven rod through the bevel gear set 19, and the driven rod drives the gear ring 20 through the gear 18, and the gear ring 20 drives the cleaning brush 21 to rub the outer wall of the guide rod 1 to clean the outer wall of the guide rod 1, effectively preventing the float body 2 from being affected by the particles attached to the outer wall of the guide rod 1 and being unable to move, thereby affecting the water level monitoring work.

[0073] Preferably, the outer wall of the guide rod 1 of the present embodiment is provided with scale lines (not shown in the figure), and an image acquisition device 30 is provided on the top of the supporting plate 24. The image acquisition device 30 is a waterproof camera. The image acquisition device 30 is used to acquire the numerical image data of the scale lines corresponding to the supporting plate 24, and send the numerical image data of the scale lines to the monitoring terminal through a wireless communicator. The monitoring terminal also includes a display module for displaying the numerical image data of the scale lines. The user can control the telescopic device 23 to adjust the supporting plate 24 to the desired position by observing the numerical image data of the scale lines, so as to realize the height regulation of the warning water level and improve the use flexibility of the water level monitoring system.

[0074] Preferably, the mounting frame 27 of this embodiment is further provided with a photovoltaic component 29, which includes a battery and a photovoltaic panel, etc., so as to supply power to the electrical equipment in the water level collection module.

[0075] 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 dynamic groundwater level monitoring system for deep foundation pit dewatering construction based on wireless sensing, characterized by: It includes a water level acquisition module and a monitoring terminal connected thereto; The water level collection module comprises: a guide rod (1), the outer wall of which is provided with a float mechanism that moves with the water level; A wireless sensor detection mechanism is arranged on the guide rod (1) and is used to send an early warning signal to the monitoring terminal when the float mechanism rises to a preset position; The float mechanism comprises: a float body (2), the axis of which is provided with a channel for the guide rod (1) to pass through, the inner walls of the upper and lower sides of the channel are provided with a plurality of grooves (3), a guide wheel (4) is slidably provided in the groove (3), and the guide wheel (4) is connected to the bottom of the groove (3) through an elastic member (6); An electromagnetic component (5) is embedded in the inner wall of the channel and is used to electrically absorb the guide wheel component (4) so ​​that the guide wheel component (4) contacts the outer wall of the guide rod (1); The anti-stuck detection mechanism is arranged on the float body (2) and is used to drive the electromagnetic component (5) to cut off power when detecting that the float body (2) is submerged in water.

2. The monitoring system according to claim 1, characterized in that: The water level detection mechanism comprises: A top plate (22) is arranged at the upper end of the guide rod (1), and a telescopic device (23) is arranged on the top plate (22); A bearing plate (24) is slidably sleeved on the outer wall of the guide rod (1) and connected to the output end of the telescopic device (23); a contact sensor (25) for contacting the floating ball body (2) is provided at the bottom of the bearing plate (24); The electrical device (26) is arranged on the supporting plate (24) via a mounting frame (27), and the electrical device (26) comprises a housing, a wireless communicator and a controller arranged in the housing and electrically connected to the contact sensor (25), the controller is also electrically connected to the electromagnetic component 1 (5) and the anti-stuck detection mechanism, and the wireless communicator is also electrically connected to the monitoring terminal.

3. The monitoring system according to claim 2, characterized in that: The mounting frame (27) is also provided with a pumping device (28) electrically connected to the controller. The pumping device (28) is connected to a pumping filter head (31) via a pipeline. The pumping filter head (31) is arranged on the outer wall of the float body (2). When the contact sensor (25) contacts the float body (2), the pumping device (28) is driven to open by the controller.

4. The monitoring system according to claim 2, characterized in that: The anti-stuck detection mechanism comprises: A detection tube (7) is embedded in the upper end of the outer wall of the float body (2), and a movable block (9) is movably provided in the detection tube (7). The movable block (9) is movably connected to a floating plate (8) after penetrating the top of the detection tube (7) through a support rod. The floating plate (8) is used to move upward when the float body (2) is submerged in water. Two sets of detection sensors (10) are electrically connected to the controller and are embedded in the inner wall of the detection tube (7) from top to bottom at intervals, and are used to detect the position of the movable block (9). When the detection sensor (10) below detects the movable block (9), the controller controls the electromagnetic component (5) to cut off the power.

5. The monitoring system according to claim 4, characterized in that: The float mechanism also includes: A plurality of groups of annular air bags (15) are embedded in the outer wall of the float body (2), and two adjacent groups of annular air bags (15) are connected to each other via a connecting pipe (16); A plurality of gas storage chambers (11) are provided in the inner cavity of the float body (2), the gas storage chambers (11) are filled with gas, one side of the gas storage chamber (11) is connected to an annular air bag (15) through a pipeline, a matching piston member (12) is movably provided in the gas storage chamber (11), an electromagnetic member (13) for adsorbing the piston member (12) is provided on the inner wall of one side of the gas storage chamber (11), the electromagnetic member (13) is electrically connected to the controller, and is used for being controlled by the controller to be energized when the upper detection sensor (10) detects the movable block (9), the electromagnetic member (13) is energized to adsorb the piston member (12) to move and compress the gas into the annular air bag (15), so that the annular air bag (15) expands; The elastic guide rod (14) is arranged in the gas storage chamber (11) and is used to drive the piston member (12) to reset when the electromagnetic member 2 (13) is powered off, so as to draw the gas in the annular air bag (15) back into the gas storage chamber (11).

6. The monitoring system according to claim 5, characterized in that: The bottom wall of the detection cylinder (7) is also provided with a detection sensor 2 electrically connected to the controller. When the detection sensor 2 contacts the movable block (9), the controller controls the electromagnetic component 2 (13) to be powered off and the electromagnetic component 1 (5) to be powered on.

7. The monitoring system according to claim 1, characterized in that: The float mechanism also includes: A contact wheel (17) is rotatably embedded in the middle of the inner wall of one side of the channel, and the shaft of the contact wheel (17) is connected to a driven rod through a bevel gear set (19), and the driven rod movably penetrates the top of the float body (2) and extends to the top of the float body (2); A gear ring (20) is rotatably embedded in the top of the float body (2) and is coaxial with the guide rod (1); the gear ring (20) is movably sleeved on the outer wall of the guide rod (1) and is transmission-connected to the driven rod via a gear (18); A plurality of cleaning brushes (21) are arranged in a ring array on the top of the gear ring (20) and are used to clean the outer wall of the guide rod (1).

8. The monitoring system according to claim 2, characterized in that: The outer wall of the guide rod (1) is provided with scale lines, and the top of the carrier plate (24) is provided with an image acquisition device (30), the image acquisition device (30) is used to acquire numerical image data of the scale lines corresponding to the carrier plate (24), and send the numerical image data of the scale lines to a monitoring terminal via a wireless communicator.

9. The monitoring system according to claim 2, characterized in that: The mounting frame (27) is also provided with a photovoltaic component (29).

10. The monitoring system according to claim 1, characterized in that: A bottom plate (32) is provided at the bottom of the guide rod (1).

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