A hydrological monitoring device suitable for flood forecasting

Abstract

The present invention belongs to the technical field of hydrological monitoring equipment, and in particular relates to a hydrological monitoring device suitable for flood forecasting, comprising a base body, a flood mark cylinder being detachably mounted on the top of the base body through a bottom plate, and a fan-shaped mesh plate being mounted on the cylinder wall of the flood mark cylinder; a sealing cylinder is vertically arranged in the flood mark cylinder, a floating ball is sleeved on the outside of the sealing cylinder, and an early warning monitoring mechanism is mounted on the flood mark cylinder; a collecting cylinder is rotatably mounted in the sealing cylinder, and the bottoms of the sealing cylinder and the collecting cylinder are symmetrically provided with liquid inlet guide grooves upward; a liquid guide tube is connected to the bottom of the collecting cylinder, and the liquid guide tube is connected to the bottom of the sealing cylinder through a bearing, a liquid guide elbow is rotatably inserted in the liquid guide tube, and the liquid guide outer tube extends out of the flood mark cylinder; the top rotating shaft of the collecting cylinder is connected to a servo motor fixed on the top of the sealing cylinder; the present invention can effectively prevent the flow of floods from causing landslides in the area or polluting the surrounding water quality.

Description

Technical Field

[0001] The invention belongs to the technical field of hydrological monitoring equipment, and in particular relates to a hydrological monitoring device suitable for flood forecasting. Background Art

[0002] In recent years, with the increasing emphasis on ecological and environmental protection, hydrological monitoring has received increasing attention. Hydrological monitoring is a fundamental task aimed at protecting water resources and improving and maintaining a healthy ecological environment. Hydrological monitoring requires real-time monitoring of water levels within the monitored waters, followed by timely alarms for abnormal conditions to prevent disasters or mitigate their severity.

[0003] Especially when floods occur in mountainous areas or areas with high sand content, the floods will be mixed with a large amount of silt and other harmful substances when flowing in rivers or river channels. If the water quality of the silt and other harmful substances mixed in the floods is not monitored in time, it will inevitably lead to safety hazards in the flooded areas, such as landslides or water pollution.

[0004] Although the existing hydrological monitoring devices for floods have the function of early warning, it is obviously unable to simultaneously sample and monitor the mud or harmful substances mixed in the flowing flood, and thus cannot prevent or warn of the hazards caused by the flood after it occurs, which will affect the safe and effective early warning, prevention and control of the flood-affected areas by the hydrological monitoring devices. Summary of the Invention

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a hydrological monitoring device suitable for flood forecasting, comprising a base body, the base body being fixedly installed in a monitored river channel area, a flood mark cylinder being detachably installed on the top of the base body through a bottom plate, and a fan-shaped mesh plate being installed on the cylinder wall of the flood mark cylinder;

[0007] A sealing cylinder is vertically arranged inside the Honghen cylinder, and a floating ball is sleeved on the outside of the sealing cylinder, and an early warning monitoring mechanism is installed on the Honghen cylinder;

[0008] The sealing cylinder is provided with a water quality sampling mechanism, which includes a collecting cylinder, which is rotatably installed in the sealing cylinder, and the bottoms of the sealing cylinder and the collecting cylinder are symmetrically provided with liquid inlet guide grooves.

[0009] The bottom of the collecting tube is connected to a liquid guide tube, and the liquid guide tube is connected to the bottom of the sealing tube through a bearing. A liquid guide elbow is rotatably inserted in the liquid guide tube, and the liquid guide outer tube extends out of the Honghen tube.

[0010] The top rotating shaft of the collecting cylinder is connected to the servo motor fixed on the top of the sealing cylinder.

[0011] Furthermore, the collecting cylinder is elliptical in shape, and the length of the major axis of the elliptical collecting cylinder is the same as the diameter of the sealing cylinder, and the symmetrical liquid inlet guide grooves are opened on the major axis side wall of the elliptical collecting cylinder;

[0012] The water quality sampling mechanism also includes a push rod. The sealing cylinder is symmetrically provided with a plurality of movable holes along its length, and a push rod is slidably inserted into each movable hole.

[0013] An elastic membrane is fixed to the inner wall of the sealing cylinder, and the inner side of the elastic membrane is connected to the inner ends of the plurality of push rods, and the circumferential end of the elastic membrane is flush with the cylinder wall of the sealing cylinder;

[0014] A spring member 1 is sleeved on the push rod, and the two ends of the spring member 1 are respectively connected to the inner sinking hole of the moving hole and the elastic membrane body. The outer end of the push rod extends out and contacts the inner wall of the floating float.

[0015] Furthermore, the early warning monitoring mechanism includes an alarm light, and a plurality of mounting holes are equidistantly opened on the side wall of the Honghen tube, and an alarm light is sealed and installed in each mounting hole through a sealing plug;

[0016] A solar panel is installed on the top of the Honghen tube, and a sounder connected to the alarm light is installed at other positions on the top of the Honghen tube;

[0017] A contact switch is installed on the inner end surface of each warning light, and the outer end of the contact switch contacts the elastic membrane sealed at the inner opening of the mounting hole;

[0018] A sliding and tightening component is provided inside the float body, and the sliding and tightening component slides correspondingly with the push rod and the contact switch.

[0019] Furthermore, the sliding and tightening assembly includes a lightweight push rod and a sealing plug, and the float body is radially provided with at least two penetrating radial guide holes, and the radial guide holes are formed as countersunk holes near the opening of the sealing cylinder;

[0020] A lightweight push rod is slidably provided in the radial guide hole, and a sealing plug is fixedly provided at the end of the lightweight push rod close to the wall of the sealing cylinder, and the inner side of the sealing plug is connected to the hole wall of the countersunk hole through a second spring member;

[0021] The diameter of the end of the lightweight push rod close to the contact switch is smaller than the diameter of the mounting hole, and the diameter of the sealing plug is larger than the diameter of the push rod.

[0022] Furthermore, at least two vertical guide grooves are vertically opened on the cylinder wall of the sealing cylinder, and a limiting guide block is provided on the inner wall of the float body, and the limiting guide block is slidably inserted into the vertical guide groove.

[0023] Furthermore, the fitting area between the outer ring wall of the long axis of the elliptical collecting cylinder and the inner wall of the sealing cylinder is larger than the axial slot width of the liquid inlet guide groove.

[0024] Furthermore, a plurality of reflective stickers are installed at equal intervals on the outer wall of the Honghen tube, and each reflective sticker is located at the alarm light.

[0025] Furthermore, a sealing plate is fixedly provided between the top of the sealing cylinder and the inner wall of the Honghen cylinder, and a plurality of air holes are opened on the sealing plate, and a waterproof and breathable membrane is provided on each air hole.

[0026] The present invention has the following beneficial effects:

[0027] 1. The present invention sets a rotatable collecting cylinder in the flood mark cylinder. When the float body no longer floats up in the flood mark cylinder, the float body will drive the early warning monitoring mechanism to work. The early warning monitoring mechanism monitors the position of the flood mark generated by the flood on the flood mark cylinder, thereby facilitating safety forecast reminders for nearby patrol personnel. At this time, the servo motor on the top of the sealing cylinder is controlled to work, so that it drives the collecting cylinder to rotate in the sealing cylinder, so that the liquid inlet guide groove on the collecting cylinder and the liquid inlet guide groove on the sealing cylinder are misaligned, and the flood samples collected in the collecting cylinder can be sealed and preserved. Hydrological monitoring personnel can timely monitor the water quality of the last flood based on the collected sample water body, thereby effectively avoiding the occurrence of landslides in the area or pollution of the surrounding water quality due to the flow of the flood.

[0028] 2. The present invention designs the collecting tube to be elliptical in shape, and cooperates with the push rod slidingly arranged on the sealing tube. When the long axis of the elliptical collecting tube fits the inner wall of the sealing tube and rotates, the long axis ring surface of the collecting tube will squeeze the elastic membrane body, so that the elastic membrane body that is bulging in the initial state is squeezed and fits the hidden groove into the recessed groove opened on the inner wall of the sealing tube. At this time, the elastic membrane body will push multiple push rods to extend outward from the moving hole, and the spring part will be compressed so that it will conflict with the inner wall of the floating sphere, which can achieve the limiting and fixing of the floating body, preventing the floating sphere from falling due to its own gravity when the flood in the flood mark tube is discharged, which will affect the monitoring personnel's accurate recording and processing of the flood marks.

[0029] 3. In the present invention, the two ends of the elastic membrane are flush with the inner wall of the sealing cylinder, and are a long strip extending downward to the upper notch of the liquid inlet guide groove, so that it will not interfere with the normal rotation of the elliptical collecting cylinder in the sealing cylinder. It can also be compressed and hidden in the recessed groove opened on the inner wall of the sealing cylinder when the long axis ring wall of the collecting cylinder is compressed, thereby facilitating the synchronous extension of multiple push rods to interfere with and limit the floating ball bodies that float to different heights, so that the floating ball body can monitor and record the flood water levels of different heights entering the flood mark cylinder, and will not interfere with the collection and sampling of floods at different water levels in the collecting cylinder.

[0030] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the overall structure disclosed in the present invention;

[0033] Figure 2 This is a schematic diagram of the internal structure of the Honghen tube disclosed in the present invention;

[0034] Figure 3 It is a cross-sectional view of the Honghen tube disclosed in the present invention;

[0035] Figure 4 It is a cross-sectional view of the sealing cylinder disclosed in the present invention;

[0036] Figure 5 This is a diagram showing the suspended state of the floating sphere disclosed in the present invention;

[0037] Figure 6 This is a schematic structural diagram of the floating ball disclosed in the present invention.

[0038] In the figure: 1. base body;

[0039] 2. Honghen tube; 21. Bottom plate; 22. Curved screen plate;

[0040] 3. Sealing cylinder; 31. Moving hole; 32. Vertical guide groove;

[0041] 4. Float; 41. Radial guide hole; 42. Lightweight push rod; 43. Sealing plug; 44. Limit guide block;

[0042] 5. Water sampling mechanism; 51. Collection tube; 52. Liquid inlet guide groove; 53. Liquid guide tube; 54. Liquid guide elbow; 55. Push rod; 56. Elastic membrane; 57. Spring member 1;

[0043] 6. Early warning monitoring mechanism; 61. Warning light; 62. Sealing sleeve; 63. Solar panel; 64. Sounder; 65. Contact switch; 66. Reflective tape; 67. Spring component 2;

[0044] 7. Sealing plate; 71 ventilation holes. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] See also Figures 1-6 As shown, the present invention is a hydrological monitoring device suitable for flood forecasting, comprising a base body 1, which is fixedly installed in the river area to be monitored. A flood mark tube 2 is detachably mounted on the top of the base body 1 through a bottom plate 21, and an arc-shaped mesh plate 22 is mounted on the cylinder wall of the flood mark tube 2;

[0048] A sealing cylinder 3 is vertically arranged in the Honghen cylinder 2, and a floating ball 4 is sleeved on the outside of the sealing cylinder 3, and an early warning monitoring mechanism 6 is installed on the Honghen cylinder 2; a water quality sampling mechanism 5 is provided on the sealing cylinder 3, and the water quality sampling mechanism 5 includes a collecting cylinder 51, which is rotatably installed in the sealing cylinder 3, and the bottoms of the sealing cylinder 3 and the collecting cylinder 51 are symmetrically provided with liquid inlet guide grooves 52 upward; the bottom of the collecting cylinder 51 is connected to a liquid guide tube 53, and the liquid guide tube 53 is connected to the bottom of the sealing cylinder 3 through a bearing, a liquid guide elbow 54 is rotatably inserted in the liquid guide tube 53, and the liquid guide outer tube extends out of the Honghen cylinder 2; the top rotating shaft of the collecting cylinder 51 is connected to the servo motor fixed on the top of the sealing cylinder 3;

[0049] Specifically, the monitoring device of the present invention is laid in the river channel or river area to be monitored, the base body 1 is laid by pouring concrete, and the flood mark tube 2 is detachably installed on the base body 1 through the bottom plate 21 and bolts, and the flood mark tube 2 is coated with an anti-corrosion layer, and the height of the flood mark tube 2 is higher than the highest water level of the flood in the area. When the flood flows in the river channel to the flood mark tube 2, part of the flood may enter the flood mark tube 2 through the arc mesh plate 22, so that the float 4 floats upward along the sealing tube 3, and the arc mesh plate 22 can move the trees impacted by the flowing flood. The buoyancy monitoring mechanism 6 is a kind of early warning monitoring mechanism which is used to monitor the position of flood marks on the flood mark tube 2, thereby facilitating safety forecasts for nearby patrol personnel. At this time, the servo motor on the top of the sealing tube 3 is controlled to work, so that it drives the collecting tube 51 to rotate in the sealing tube 3, so that the collecting tube 51 is not floating. The liquid inlet guide groove 52 of the sealing cylinder 3 is misaligned with the liquid inlet guide groove 52 on the sealing cylinder 3, so that the flood samples collected in the collecting cylinder 51 can be sealed and preserved. When the flood water level drops, the float 4 is still in a suspended state. At this time, the hydrological monitoring personnel will record the highest flood mark water level according to the light-up position of the early warning monitoring mechanism 6, and then connect the conduit of the liquid collection box and the like with the valve on the outer pipe mouth of the liquid guide elbow 54, so that the flood collected in the collecting cylinder 51 enters the liquid collection box through the liquid guide elbow 54, and then the hydrological monitoring personnel can use the collected sample water body to predict the flood that occurred last time. The water quality is monitored in a timely manner, which can effectively prevent the flow of flood water from causing landslides in the area or polluting the surrounding water quality. After the collected flood samples in the collecting tube 51 are discharged, the collecting tube 51 rotates so that the liquid inlet guide groove 52 at the bottom is aligned with the liquid inlet guide groove 52 at the bottom of the sealing tube 3. At this time, the float 4 will automatically fall to the bottom of the flood mark tube 2 under its own gravity, and the early warning monitoring mechanism 6 will also cancel the early warning at the same time, so that the hydrological monitoring device can continue to work in the river channel to monitor and sample the next flood.

[0050] In this embodiment, the collecting cylinder 51 is elliptical, and the length of the major axis of the elliptical collecting cylinder 51 is the same as the diameter of the sealing cylinder 3, and the symmetrical liquid inlet guide groove 52 is opened on the major axis side wall of the elliptical collecting cylinder 51; the water quality sampling mechanism 5 also includes a push rod 55, and the sealing cylinder 3 is symmetrically provided with a plurality of movable holes 31 equidistantly along its length direction, and a push rod 55 is slidably inserted in each movable hole 31; an elastic membrane 56 is fixed to the inner wall of the sealing cylinder 3, and the inner side surface of the elastic membrane 56 is connected to the inner end of the plurality of push rods 55, and the circumferential end of the elastic membrane 56 is flush with the cylinder wall of the sealing cylinder 3; a spring member 57 is sleeved on the push rod 55, and the two ends of the spring member 57 are respectively connected to the inner sink hole of the movable hole 31 and the elastic membrane 56, and the outer end of the push rod 55 extends out and contacts the inner wall of the floating float 4;

[0051] Specifically, the collecting tube 51 is set to an elliptical shape. When the collecting tube 51 is needed to sample the flowing flood water, the liquid inlet guide groove 52 located on the side wall of the long axis corresponds to the liquid inlet guide groove 52 on the sealing tube 3, so that the flood water entering the flood mark tube 2 will enter the elliptical collecting tube 51 through the liquid inlet guide groove 52. When the collecting tube 51 rotates so that the liquid inlet guide groove 52 and the liquid inlet guide groove 52 of the sealing tube 3 are staggered, since the long axis diameter of the elliptical collecting tube 51 is the same as the inner diameter of the sealing tube 3, the circle wall of the long axis of the collecting tube 51 can always fit with the inner wall of the sealing tube 3 when the collecting tube 51 rotates, thereby preventing the flood water collected in the collecting tube 51 from leaking.

[0052] When the float 4 is in a stable state, the long axis of the elliptical collecting tube 51 is in contact with the inner wall of the sealing tube 3 and rotates, and the long axis ring surface of the collecting tube 51 will squeeze the elastic membrane 56, so that the elastic membrane 56 that is initially bulging is squeezed and fits into the hidden groove into the recessed groove provided on the inner wall of the sealing tube 3. At this time, the elastic membrane 56 will push the multiple push rods 55 out of the moving hole 31, and the spring member 1 57 will be compressed so that it will come into contact with the inner wall of the floating float 4, so as to limit and fix the floating body, and prevent the floating float 4 from falling due to its own gravity when the flood in the flood mark tube 2 is discharged, which will affect the monitoring personnel's accurate recording and processing of the flood mark.

[0053] When the flood water collected in the collecting cylinder 51 is discharged, the collecting cylinder 51 rotates in the opposite direction in the sealing cylinder 3, so that the liquid inlet guide groove 52 corresponds to the liquid inlet guide groove 52 on the sealing cylinder 3, and the long axis ring wall of the collecting cylinder 51 will be free from squeezing the elastic membrane 56. At this time, the push rod 55 is recovered into the moving hole 31 under the elastic restoring force of the spring member 1 57, so that it is free from the resistance limit to the float body 4. At this time, the elastic membrane 56 will be in a bulging state and located at the outer ring wall of the short axis of the collecting cylinder 51, so that the collecting cylinder 51 can rotate again to squeeze the elastic membrane 56 with the two ends aligned. It fits flush with the inner wall of the sealing cylinder 3, and is a long strip extending downward to the notch on the liquid inlet guide groove 52, so that it will not interfere with the normal rotation of the elliptical collecting cylinder 51 in the sealing cylinder 3. Under the premise that the long axis ring wall of the collecting cylinder 51 is compressed, it can be compressed and hidden in the recessed groove opened on the inner wall of the sealing cylinder 3, thereby facilitating the simultaneous extension of multiple push rods 55 to interfere with the floating ball body 4 that floats to different heights and limit the position, so that the floating ball body 4 can monitor and record the flood water levels and flood marks of different heights entering the flood mark cylinder 2, and will not interfere with the collection and sampling of floods at different water levels in the collecting cylinder 51.

[0054] In this embodiment, the early warning monitoring mechanism 6 includes an alarm light 61, a plurality of mounting holes are equidistantly provided on the side wall of the Honghen tube 2, and an alarm light 61 is sealed and installed in each mounting hole through a sealing sleeve 62; a solar panel 63 is installed on the top of the Honghen tube 2, and a sounder 64 connected to the alarm light 61 is installed at other positions on the top of the Honghen tube 2; a contact switch 65 is installed on the inner end face of each alarm light 61, and the outer end of the contact switch 65 is in contact with the elastic membrane sealed at the orifice of the mounting hole; a sliding pressing assembly is provided inside the float body 4, and the sliding pressing assembly corresponds to the sliding of the push rod 55 and the contact switch 65;

[0055] Specifically, when the float body 4 reaches a stable height, the extended push rod 55 will come into conflict with the sliding and tightening assembly, so that the sliding and tightening assembly can contact the corresponding contact switch 65, thereby realizing electrical signal connection between the alarm light 61 and the sounder 64 outside the flood mark tube 2, so that the alarm light 61 can emit a light warning outside the flood mark tube 2, so that the inspection personnel can observe the highest water level of the flood in real time according to the flashing height of the alarm light 61 on the flood mark tube 2, and the solar panel 63 can provide electrical energy to electrical appliances such as the alarm light 61, the sounder 64 and the servo motor; when the float body 4 slides down, the sliding and tightening assembly will be disengaged from the conflict with the contact switch 65, so that the alarm light 61 and the sounder 64 will no longer give an alarm warning, and the design of the elastic membrane and the sealing sleeve 62 can seal the mounting hole to prevent flood water from entering the sealing tube 3 through the mounting hole.

[0056] In this embodiment, the sliding and tightening assembly includes a lightweight push rod 42 and a sealing plug 43. The float body 4 is radially provided with at least two penetrating radial guide holes 41, and the radial guide holes 41 are formed as countersunk holes near the opening of the sealing tube 3. A lightweight push rod 42 is slidingly provided in the radial guide holes 41, and a sealing plug 43 is fixedly provided at the end of the lightweight push rod 42 near the tube wall of the sealing tube 3, and the inner side surface of the sealing plug 43 is connected to the hole wall of the countersunk hole via a second spring member 67. The diameter of the end of the lightweight push rod 42 near the contact switch 65 is smaller than the diameter of the mounting hole, and the diameter of the sealing plug 43 is larger than the diameter of the push rod 55.

[0057] Specifically, when the float 4 floats to a stable position, the extension of the push rod 55 will contact the radial sealing plug 43 and push the sealing plug 43 to slide in the countersunk hole of the radial guide hole 41. At this time, the outer end of the lightweight push rod 42 will extend out of the radial guide hole 41 and contact the contact switch 65 installed in the mounting hole, thereby energizing the contact switch 65. The number and spacing of the multiple alarm lights 61 installed in the vertical direction are the same as the number and spacing of the push rod 55, so that no matter how high the float 4 floats, the The lightweight push rod 42 inside can be aligned and contacted with the push rod 55 to realize the power-on processing of the alarm light 61, and the diameter of the sealing plug 43 is larger than the diameter of the push rod 55, so that the sliding push rod 55 can accurately and stably push and slide the lightweight push rod 42; after the push rod 55 is recovered into the movable hole 31, the sealing plug 43 will pull the lightweight push rod 42 to reset and recover under the elastic reset push of the spring part 2 67, so that it will break away from the contact with the contact switch 65, so that it can cut off the power to the alarm light 61.

[0058] In this embodiment, at least two vertical guide grooves 32 are vertically opened on the wall of the sealing cylinder 3, and a limiting guide block 44 is provided on the inner wall of the float body 4, and the limiting guide block 44 is slidably inserted into the vertical guide groove 32; specifically, the inner wall of the float body 4 cooperates with the limiting guide block 44 and the vertical guide groove 32, so that the float body 4 will only rise along the sealing cylinder 3 and will not rotate due to the impact of the flood, so that the lightweight push rod 42 can be accurately aligned with the sliding rod and the contact switch 65, so that the alarm light 61 can be accurately energized.

[0059] In this embodiment, the fitting area between the outer ring wall of the long axis of the elliptical collecting cylinder 51 and the inner wall of the sealing cylinder 3 is larger than the axial slot width of the liquid inlet guide groove 52; specifically, this size limitation allows the slot of the liquid inlet guide groove 52 to always be in contact with the inner wall of the sealing cylinder 3 when the elliptical collecting cylinder 51 rotates in the sealing cylinder 3, preventing the slot of the liquid inlet guide groove 52 from being too wide. However, since the fitting area between the outer ring surface of the long axis of the elliptical collecting cylinder 51 and the inner wall of the sealing cylinder 3 is small, the slot of the liquid inlet guide groove 52 cannot be completely fitted with the inner wall of the sealing cylinder 3. When the flood in the flood mark cylinder 2 and the sealing cylinder 3 is discharged, the flood collected in the collecting cylinder 51 will leak, which will affect the monitoring personnel's accurate and stable water quality monitoring and processing of the flood collected and sampled in the collecting cylinder 51.

[0060] In this embodiment, a plurality of reflective stickers 66 are installed at equal intervals on the outer wall of the flood mark tube 2, and each reflective sticker 66 is located at the alarm light 61; specifically, the setting of the reflective stickers 66 is convenient for providing reflective reminders to ships sailing in rivers or waterways at night, and prevents ships sailing at night from colliding with the flood mark tube 2 when the flood mark tube 2 is normally erected in the waterway or river without flooding.

[0061] In this embodiment, a sealing plate 7 is fixedly provided between the top of the sealing cylinder 3 and the inner wall of the flood mark cylinder 2, and a plurality of air holes 71 are opened on the sealing plate 7, and each air hole 71 is provided with a waterproof breathable membrane; specifically, the design of the sealing plate 7 can prevent the flood water level entering the flood mark cylinder 2 from being too high and rising to the top of the sealing cylinder 3, causing damage to electrical components such as the control panel laid in the space above the sealing cylinder 3, and the design of the air holes 71 and the waterproof breathable membrane can dissipate the heat generated in the space above the sealing cylinder 3 and exhaust the air.

[0062] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0063] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hydrological monitoring device suitable for flood forecasting, comprising a base body, the base body being fixedly arranged in a river channel area to be monitored, characterized in that: A Honghen cylinder is detachably mounted on the top of the base body through a bottom plate, and a fan-shaped mesh plate is mounted on the cylinder wall of the Honghen cylinder; A sealing cylinder is vertically arranged inside the Honghen cylinder, and a floating ball is sleeved on the outside of the sealing cylinder, and an early warning monitoring mechanism is installed on the Honghen cylinder; The sealing cylinder is provided with a water quality sampling mechanism, which includes a collecting cylinder, which is rotatably installed in the sealing cylinder, and the bottoms of the sealing cylinder and the collecting cylinder are symmetrically provided with liquid inlet guide grooves. The bottom of the collecting tube is connected to a liquid guide tube, and the liquid guide tube is connected to the bottom of the sealing tube through a bearing. A liquid guide elbow is rotatably inserted in the liquid guide tube, and the liquid guide outer tube extends out of the Honghen tube. The top rotating shaft of the collecting cylinder is connected to the servo motor fixed on the top of the sealing cylinder; The collecting cylinder is elliptical in shape, and the length of the major axis of the elliptical collecting cylinder is the same as the diameter of the sealing cylinder, and the symmetrical liquid inlet guide grooves are opened on the major axis side wall of the elliptical collecting cylinder; The water quality sampling mechanism also includes a push rod. The sealing cylinder is symmetrically provided with a plurality of movable holes along its length, and a push rod is slidably inserted into each movable hole. An elastic membrane is fixed to the inner wall of the sealing cylinder, and the inner side of the elastic membrane is connected to the inner ends of the plurality of push rods, and the circumferential end of the elastic membrane is flush with the cylinder wall of the sealing cylinder; A spring member 1 is sleeved on the push rod, and the two ends of the spring member 1 are respectively connected to the inner sinking hole of the moving hole and the elastic membrane body. The outer end of the push rod extends out and contacts the inner wall of the floating float.

2. A hydrological monitoring device suitable for flood forecasting according to claim 1, characterized in that: The early warning monitoring mechanism includes an alarm light. A plurality of mounting holes are evenly spaced on the side wall of the Honghen tube, and an alarm light is sealed and installed in each mounting hole through a sealing plug. A solar panel is installed on the top of the Honghen tube, and a sounder connected to the alarm light is installed at other positions on the top of the Honghen tube; A contact switch is installed on the inner end surface of each warning light, and the outer end of the contact switch contacts the elastic membrane sealed at the inner opening of the mounting hole; A sliding and tightening component is provided inside the float body, and the sliding and tightening component slides correspondingly with the push rod and the contact switch.

3. A hydrological monitoring device suitable for flood forecasting according to claim 2, characterized in that: The sliding and tightening assembly includes a lightweight push rod and a sealing plug. The float body is radially provided with at least two penetrating radial guide holes, and the radial guide holes are countersunk holes near the opening of the sealing cylinder. A lightweight push rod is slidably provided in the radial guide hole, and a sealing plug is fixedly provided at the end of the lightweight push rod close to the wall of the sealing cylinder, and the inner side of the sealing plug is connected to the hole wall of the countersunk hole through a second spring member; The diameter of the end of the lightweight push rod close to the contact switch is smaller than the diameter of the mounting hole, and the diameter of the sealing plug is larger than the diameter of the push rod.

4. A hydrological monitoring device suitable for flood forecasting according to claim 3, characterized in that: At least two vertical guide grooves are vertically opened on the wall of the sealing cylinder, and a limiting guide block is provided on the inner wall of the float body, and the limiting guide block is slidably inserted into the vertical guide groove.

5. The hydrological monitoring device suitable for flood forecasting according to claim 1, characterized in that: The fitting area between the outer ring wall of the long axis of the elliptical collecting cylinder and the inner wall of the sealing cylinder is larger than the axial slot width of the liquid inlet guide groove.

6. A hydrological monitoring device suitable for flood forecasting according to claim 2, characterized in that: There are multiple reflective stickers installed at equal intervals on the outer wall of the Honghen tube, and each reflective sticker is located at the alarm light.

7. The hydrological monitoring device suitable for flood forecasting according to claim 1, characterized in that: A sealing plate is fixed between the top of the sealing cylinder and the inner wall of the Honghen cylinder, and a plurality of air holes are opened on the sealing plate, and a waterproof and breathable membrane is provided on each air hole.

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