阅读说明：本技术 基于水情监测用的水利防汛预警装置及其预警系统 (Water conservancy flood prevention early warning device based on water regime monitoring and early warning system thereof ) 是由 郭林平 于 2021-08-10 设计创作，主要内容包括：本发明提供基于水情监测用的水利防汛预警装置及其预警系统,涉及水情监测技术领域,以解决现有的水利防汛预警装置使用时,水中的水草容易影响水利防汛预警装置浮动的问题,包括本体,所述本体为圆柱形结构,且本体的外侧安装有浮力机构；所述浮力机构内的外筒的外侧安装有防水电机以及通过构造件安装有螺纹杆,防水电机与螺纹杆的底端均安装有齿轮,防水电机底端齿轮与螺纹杆底端的齿轮相啮合,且浮力机构内的底板滑动安装在本体的外侧；所述清理组件安装在浮力机构的侧面,且清理组件内的滑板的顶部设有螺纹孔。通过外筒侧面的电机驱动转板转动,使转板内侧安装的刀片对水草进行切割,防止水草的缠绕影响水利防汛预警装置。(The invention provides a water conservancy flood prevention early warning device and an early warning system thereof based on water regime monitoring, relates to the technical field of water regime monitoring, and aims to solve the problem that water plants in water easily influence the floating of the water conservancy flood prevention early warning device when the existing water conservancy flood prevention early warning device is used; a waterproof motor and a threaded rod are mounted on the outer side of the outer cylinder in the buoyancy mechanism through a structural member, gears are mounted at the bottom ends of the waterproof motor and the threaded rod, the gear at the bottom end of the waterproof motor is meshed with the gear at the bottom end of the threaded rod, and a bottom plate in the buoyancy mechanism is slidably mounted on the outer side of the body; the cleaning assembly is arranged on the side face of the buoyancy mechanism, and a threaded hole is formed in the top of the sliding plate in the cleaning assembly. The motor driving through the lateral surface of the outer barrel rotates the rotating plate, so that the blades arranged on the inner side of the rotating plate cut the aquatic weeds, and the water conservancy flood prevention early warning device is prevented from being influenced by the winding of the aquatic weeds.)

1. Water conservancy flood prevention early warning device and early warning system based on regimen monitoring usefulness, its characterized in that: water conservancy flood prevention early warning device based on regimen monitoring usefulness includes:

the scale is arranged on the outer side of the body, and a buoyancy mechanism is mounted on the outer side of the body;

the outer side of the outer cylinder in the buoyancy mechanism is provided with a waterproof motor and a threaded rod through a structural part, and a bottom plate in the buoyancy mechanism is slidably arranged on the outer side of the body;

the clearance subassembly, the side at buoyancy mechanism is installed to the clearance subassembly, and the top of the slide in the clearance subassembly is equipped with the screw hole, installs the threaded rod in the urceolus outside in the screw hole at slide top to the spout in the clearance subassembly is established in the outside of urceolus.

2. The water conservancy flood prevention early warning device based on the water regime monitoring of claim 1, characterized in that: the body includes:

the threaded rod is arranged in the vertical groove, and the vertical groove is arranged in the body;

the locating plate, locating plate slidable mounting are in the inside of erecting the groove, and the locating plate is installed in the outside of erecting the inside threaded rod of groove.

3. The water conservancy flood prevention early warning device based on the water regime monitoring of claim 1, characterized in that: the body also comprises a plurality of connecting rods which are arranged in the body,

the alarm lamp and the signal emitter are mounted at the top of the floating plate, and the floating plate is slidably mounted on the outer side of the body;

the pointers are installed on two sides of the top of the floating plate and are slidably installed on the outer side of the body.

4. The water conservancy flood prevention early warning device based on the water regime monitoring of claim 1, characterized in that: the buoyancy mechanism includes:

the top of the outer cylinder is provided with a convex lens; the bottom groove is arranged at the bottom of the inner side of the outer barrel.

5. The water conservancy flood prevention early warning device based on the water regime monitoring of claim 1, characterized in that: the buoyancy mechanism further includes:

the inner side of the rotating plate is provided with a blade, the outer side of the rotating plate is provided with a saw-toothed structure, the saw-toothed structure on the outer side of the rotating plate is meshed with a gear at the bottom end of a waterproof motor on the outer side of the outer barrel, and the rotating plate is rotatably arranged in the bottom groove;

the bottom plate, the top of bottom plate is equipped with the filtration pore, and the bottom plate is installed in the inboard bottom of urceolus, and the bottom plate is established at the top of kerve.

6. The water conservancy flood prevention early warning device based on the water regime monitoring of claim 1, characterized in that: the cleaning assembly comprises:

the inner cavity is arranged on the inner side of the outer barrel; the side of planking, planking is equipped with the trompil, and the both sides of planking pass through the spring mounting in the inside of inner chamber.

7. The water conservancy flood prevention early warning device based on the water regime monitoring of claim 1, characterized in that: the cleaning assembly further comprises:

the opening on the side surface of the inner plate is smaller than that on the side surface of the outer plate, and two sides of the inner plate are arranged in the inner cavity through springs; the inboard of slide is equipped with the recess, and slide slidable mounting is in the outside of urceolus.

8. The water conservancy flood prevention early warning device based on the water regime monitoring of claim 1, characterized in that: the cleaning assembly further comprises:

the scraper is arranged in the groove on the inner side of the sliding plate; the guide plate is installed at the bottom of the sliding plate and is slidably installed on the outer side of the outer barrel, and the guide plate is installed on the outer side of the threaded rod on the side face of the outer barrel in a penetrating mode.

9. The water conservancy flood prevention early warning device based on the water regime monitoring of claim 1, characterized in that: the cleaning assembly further comprises:

the inner side of the sliding chute is connected with the inner cavity; the cleaning plate is slidably mounted between the outer plate and the inner plate, connected with the sliding plate through the connecting plate and slides in the sliding groove.

10. The early warning system of the water conservancy flood prevention early warning device based on the water regime monitoring as claimed in claim 1, wherein: the method comprises the following steps:

firstly, mounting a body at a position close to the bank of a reservoir or a dam, and observing the change of water level;

secondly, setting a preset value according to the position of the capacity adjusting positioning plate of the reservoir or the dam;

thirdly, the waterproof motor drives the rotating plate through the meshing of the gears, so that the blades on the inner side of the rotating plate cut aquatic weeds;

fourthly, filtering the chopped aquatic weeds or other sundries through the filter holes in the top of the bottom plate;

fifthly, the convex lens at the top of the outer cylinder magnifies the scales on the body;

sixthly, the floating plate moves to reach a preset value, an alarm lamp gives an alarm, and meanwhile, a monitoring result is transmitted to the regimen station for analysis through a signal transmitter at the top of the floating plate;

the outer plate and the inner plate reduce the influence of water surface ripple fluctuation on the floating plate;

eighthly, the scraping plate cleans aquatic plants or sundries attached to the outer side of the outer barrel, and the buoyancy of the outer barrel is improved.

Technical Field

The invention belongs to the technical field of water regime monitoring, and particularly relates to a water conservancy flood prevention early warning device and an early warning system based on water regime monitoring.

Background

The water regime monitoring means that in order to prevent damage of flood to the environment, a water regime station is arranged, the process of actual measurement elements such as the water regimes of rivers, lakes, reservoirs or other water bodies and the rain regimes is provided in real time, in rainy seasons such as summer, the water level is detected by using the water conservancy flood prevention early warning device, the change of the water level is known, countermeasures are taken, flood discharge is carried out on some large-scale reservoirs, and flood prevention and flood fighting are carried out timely.

For example, application No.: CN202010292549.8 relates to a water conservancy flood prevention monitoring and early warning system, which is characterized in that a water condition monitoring device, a soil monitoring device and an early warning notification terminal are arranged to notify the flood condition information of villagers in real time, and if flood disasters are predicted, the villagers can be notified to evacuate in the first time, so that the problem of low efficiency caused by the combination of existing broadcasting and artificial notification is solved, and the notification timeliness of villages affected by flood periods is improved. Simultaneously through be provided with the monitoring subassembly on the soil monitoring devices and bore the integrated structure of native subassembly and flexible subassembly for at the in-process of installation or maintenance, drive the mode that bores native subassembly and monitoring subassembly and remove through its flexible subassembly of electric control, with the sensor is buried underground or pulled out to the quick realization, thereby installation or the maintenance progress of monitoring devices are in order to ensure during the quickening flood season the monitoring of water conservancy flood prevention monitoring and early warning system is ageing.

Based on the prior art discovery, current water conservancy flood prevention early warning device erects in aqueous for a long time when using, and the pasture and water growth of aquatic influences water conservancy flood prevention early warning device's work easily, leads to there being the error to the detection of water level, and when the water level changed, the ripple of surface of water influenced the float condition at the surface of water easily, leads to the result of detecting unstable.

Disclosure of Invention

In order to solve the technical problems, the invention provides a water conservancy flood prevention early warning device based on water regime monitoring and an early warning system thereof, and aims to solve the problems that when the existing water conservancy flood prevention early warning device is used, the existing water conservancy flood prevention early warning device is erected in water for a long time, aquatic weeds in the water grow to easily influence the work of the water conservancy flood prevention early warning device, so that errors exist in detection of a water level, and when the water level changes, the floating condition of a buoy on the water level is easily influenced by ripples on the water level, so that the detection result is unstable.

The invention relates to a water conservancy flood prevention early warning device for monitoring water conditions and an early warning system thereof, which aim and effect are achieved by the following specific technical means:

water conservancy flood prevention early warning device and early warning system based on regimen monitoring usefulness includes: the body, the body is cylindrical structure, and the body includes: the vertical groove is of a cross structure, a threaded rod is arranged inside the vertical groove, and the vertical groove is arranged inside the body; the outer side of the outer barrel in the buoyancy mechanism is provided with a waterproof motor and a threaded rod through a structural part, gears are arranged at the bottom ends of the waterproof motor and the threaded rod, the gear at the bottom end of the waterproof motor is meshed with the gear at the bottom end of the threaded rod, and a bottom plate in the buoyancy mechanism is slidably arranged on the outer side of the body; the cleaning assembly is arranged on the side face of the buoyancy mechanism, and a threaded hole is formed in the top of the sliding plate in the cleaning assembly.

Furthermore, the locating plate, locating plate slidable mounting are in the inside of erecting the groove, and the locating plate is installed in the outside of erecting the inside threaded rod of groove.

Further, the cleaning assembly further comprises: the side surface of the inner plate is provided with an opening, the opening on the side surface of the inner plate is smaller than the opening on the side surface of the outer plate, the inner plate is of a rectangular plate structure, and two sides of the inner plate are arranged in the inner cavity through springs; the both sides of clearance board are equipped with the brush, and clearance board slidable mounting between planking and inner panel, and the clearance board is connected with the slide through the connecting plate to the side of clearance board slides in the inside of spout.

Further, the buoyancy mechanism includes: the top of the outer cylinder is provided with a convex lens, and the outer side of the outer cylinder is provided with a filter hole; the bottom groove is of an arc annular structure and is formed in the bottom of the inner side of the outer barrel, the sawtooth structure on the outer side of the rotating plate is meshed with a gear at the bottom end of the waterproof motor on the outer side of the outer barrel, and the rotating plate is rotatably installed inside the bottom groove.

Further, the cleaning assembly comprises: the inner cavity is arranged on the inner side of the outer barrel and is of a rectangular structure; the side of planking, planking is equipped with the trompil, and the both sides of planking pass through the spring mounting in the inside of inner chamber.

Further, the buoyancy mechanism further includes: the inner side of the rotating plate is provided with a blade, and the outer side of the rotating plate is provided with a sawtooth structure; the bottom plate, the top of bottom plate is equipped with the filtration pore, and the bottom plate is circular structure, and the bottom plate is installed in the inboard bottom of urceolus, and the top at the kerve is established to the bottom plate.

Furthermore, the body also comprises a floating plate, an alarm lamp and a signal emitter are installed at the top of the floating plate, induction equipment is installed on the inner side of the floating plate, and the floating plate is installed on the outer side of the body in a sliding manner; the pointer, the side of pointer is flat structure, and the pointer is installed in the top both sides of kickboard to pointer slidable mounting is equipped with the scale in the outside of body, and the base is installed to the bottom of body, and conical fixed protruding nail is installed to the bottom of base, and buoyancy mechanism is installed to the outside of body.

Further, the cleaning assembly further comprises: the outer end of the scraper is provided with an inclined rubber block, and the scraper is arranged in a groove on the inner side of the sliding plate; the guide plate, the guide plate is through installing in the bottom of slide, and guide plate slidable mounting is in the outside of urceolus to the guide plate runs through and installs the outside at urceolus side threaded rod, installs the threaded rod in the urceolus outside in the threaded hole at slide top, and the spout in the clearance subassembly is established in the outside of urceolus.

Further, the cleaning assembly further comprises: the sliding chute is of a rectangular structure, and the inner side of the sliding chute is connected with the inner cavity; the inboard of slide is equipped with the recess, and slide slidable mounting is in the outside of urceolus.

Further, the method comprises the following steps:

firstly, mounting a body at a position close to the bank of a reservoir or a dam, and observing the change of water level;

secondly, setting a preset value according to the position of the capacity adjusting positioning plate of the reservoir or the dam;

thirdly, the waterproof motor drives the rotating plate through the meshing of the gears, so that the blades on the inner side of the rotating plate cut aquatic weeds;

fourthly, filtering the chopped aquatic weeds or other sundries through the filter holes in the top of the bottom plate;

fifthly, the convex lens at the top of the outer cylinder magnifies the scales on the body;

sixthly, the floating plate moves to reach a preset value, an alarm lamp gives an alarm, and meanwhile, a monitoring result is transmitted to the regimen station for analysis through a signal transmitter at the top of the floating plate;

the outer plate and the inner plate reduce the influence of water surface ripple fluctuation on the floating plate;

eighthly, the scraping plate cleans aquatic plants or sundries attached to the outer side of the outer barrel, and the buoyancy of the outer barrel is improved.

Compared with the prior art, the invention has the following beneficial effects:

1. the rotary plate is arranged in the device, the rotary plate is driven to rotate by a motor on the side surface of the outer barrel, so that a blade arranged on the inner side of the rotary plate can cut aquatic weeds, the aquatic weeds are prevented from being wound to influence the water conservancy flood prevention early warning device, the rotary plate is placed at the bottom, the aquatic weeds growing upwards at the bottom can be conveniently cut, the aquatic weeds can be cleaned and cut regularly by the driving of the motor, the normal work of the device is ensured, the cut aquatic weeds can be filtered by the filter holes in the bottom plate, and the floating of the aquatic weeds is prevented from influencing the work of the floating plate;

2. the outer plate is arranged, the outer plate and the inner plate move along with the water surface under the action of the spring due to the fluctuation of the water surface ripple in the inner cavity, the fluctuation of the water surface ripple is eliminated by the outer plate and the inner plate, the floating plate is prevented from being driven to float due to the fluctuation of the water surface ripple, the accuracy of detection data is guaranteed, holes in the side surfaces of the outer plate and the inner plate guarantee water flow, floating sundries on the water surface are blocked, and the water conservancy flood prevention early warning device is guaranteed to monitor the water condition.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the outer cylinder of the present invention.

Fig. 3 is a schematic cross-sectional structure of the body of the present invention.

Fig. 4 is a schematic perspective view of the floating plate of the present invention.

Fig. 5 is a schematic cross-sectional structure of the base plate of the present invention.

Fig. 6 is a schematic perspective view of the outer panel of the present invention.

Fig. 7 is a schematic cross-sectional structure of the slide board of the present invention.

Fig. 8 is a schematic perspective view of the cleaning plate of the present invention.

Fig. 9 is a flow chart of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a body; 101. a vertical slot; 102. positioning a plate; 103. a floating plate; 104. a pointer; 2. a buoyancy mechanism; 201. an outer cylinder; 202. a bottom groove; 203. rotating the plate; 204. a base plate; 3. cleaning the assembly; 301. an inner cavity; 302. an outer plate; 303. an inner plate; 304. a slide plate; 305. a squeegee; 306. a guide plate; 307. a chute; 308. and (6) cleaning the plate.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 9:

the invention provides a water conservancy flood prevention early warning device and an early warning system thereof based on water regime monitoring, comprising:

referring to fig. 1, 2, 3 and 4, the body 1 is a cylindrical structure, and the outside of the body 1 is provided with scales, the base is installed to the bottom of the body 1, the conical fixed convex nail is installed to the bottom of the base, and the buoyancy mechanism 2 is installed to the outside of the body 1, the body 1 includes: the vertical groove 101 is of a cross structure, a threaded rod is arranged inside the vertical groove 101, and the vertical groove 101 is arranged inside the body 1; the positioning plate 102 is arranged inside the vertical groove 101 in a sliding mode, and the positioning plate 102 is arranged on the outer side of the threaded rod inside the vertical groove 101; the alarm lamp and the signal emitter are mounted at the top of the floating plate 103, the induction equipment is mounted on the inner side of the floating plate 103, and the floating plate 103 is slidably mounted on the outer side of the body 1; a pointer 104, the side end of the pointer 104 is a flat structure, and the pointer 104 is installed on both sides of the top of the floating plate 103, and the pointer 104 is installed outside the body 1 in a sliding manner, and is installed in the water near the bank of a reservoir or a dam through the base of the body 1, so that the base fixes the position of the body 1, the threaded rod in the vertical groove 101 is rotated according to the capacity of the reservoir or the dam, so that the positioning plate 102 moves in the vertical groove 101, the preset value is set, the floating plate 103 slides along the body 1 under the driving of the water level, the pointer 104 points to the scale on the side surface of the body 1, the reading is convenient, when the floating plate 103 moves upwards to reach a preset value, the alarm lamp at the top of the floating plate 103 gives an alarm to remind surrounding workers, meanwhile, the result monitored by the sensing equipment on the inner side of the floating plate 103 is remotely transmitted to the regimen station for regimen analysis through the signal emitter on the top of the floating plate 103.

Referring to fig. 5, in the buoyancy mechanism 2, the waterproof motor is installed on the outer side of the outer cylinder 201 in the buoyancy mechanism 2 and the threaded rod is installed through the structural member, the waterproof motor and the bottom end of the threaded rod are both installed with gears, the gear at the bottom end of the waterproof motor is engaged with the gear at the bottom end of the threaded rod, and the bottom plate 204 in the buoyancy mechanism 2 is slidably installed on the outer side of the body 1, and the buoyancy mechanism 2 includes: the outer cylinder 201 has a buoyancy effect, a convex lens is mounted at the top of the outer cylinder 201, the convex lens at the top of the outer cylinder 201 can magnify the scales on the body 1, so that when the pointer 104 moves, a worker can perform degree measurement in a long distance on the shore, the reading accuracy is improved, and filter holes are formed in the outer side of the outer cylinder 201; a bottom groove 202, wherein the bottom groove 202 is of an arc annular structure, and the bottom groove 202 is arranged at the bottom of the inner side of the outer cylinder 201; a blade is arranged on the inner side of the rotating plate 203, a sawtooth structure is arranged on the outer side of the rotating plate 203, the sawtooth structure on the outer side of the rotating plate 203 is meshed with a gear at the bottom end of a waterproof motor on the outer side of the outer cylinder 201, and the rotating plate 203 is rotatably arranged in the bottom groove 202; bottom plate 204, the top of bottom plate 204 is equipped with the filtration pore, and bottom plate 204 is circular structure, and bottom plate 204 installs the inboard bottom at urceolus 201, bottom plate 204 establishes the top at kerve 202, bottom plate 204 slides in the outside of body 1 and guarantees that urceolus 201 follows the removal of kickboard 103 and removes, urceolus 201 has the buoyancy, can carry the waterproof motor of its side to move, the motor drive of urceolus 201 side changes board 203 and rotates in the inside of kerve 202, make the inboard blade of installing of commentaries on classics board 203 cut pasture and water, prevent that pasture and water from twining in the outside of urceolus 201, make urceolus 201 can follow the surface of water and float, bottom plate 204 establishes the inboard bottom at urceolus 201, prevent that minced pasture and water from entering the inboard of urceolus 201 and influencing the unsteady of kickboard 103, simultaneously bottom plate 204 filters other debris in the aquatic.

Referring to fig. 6, 7 and 8, the cleaning assembly 3 is installed on the side of the buoyancy mechanism 2, the top of the sliding plate 304 in the cleaning assembly 3 is provided with a threaded hole, a threaded rod outside the outer cylinder 201 is installed in the threaded hole on the top of the sliding plate 304, and a sliding groove 307 in the cleaning assembly 3 is arranged outside the outer cylinder 201, the cleaning assembly 3 comprises: the inner cavity 301 is formed in the inner side of the outer barrel 201, and the inner cavity 301 is of a rectangular structure; an outer plate 302, wherein the side surface of the outer plate 302 is provided with an opening, and two sides of the outer plate 302 are arranged in the inner cavity 301 through springs; the side surface of the inner plate 303 is provided with an opening, the opening on the side surface of the inner plate 303 is smaller than the opening on the side surface of the outer plate 302, the inner plate 303 is of a rectangular plate structure, and two sides of the inner plate 303 are arranged in the inner cavity 301 through springs; a sliding plate 304, wherein a groove is arranged on the inner side of the sliding plate 304, and the sliding plate 304 is slidably mounted on the outer side of the outer cylinder 201; the outer end of the scraper 305 is provided with an inclined rubber block, and the scraper 305 is arranged in a groove on the inner side of the sliding plate 304; the guide plate 306 is installed at the bottom of the sliding plate 304, the guide plate 306 is installed outside the outer cylinder 201 in a sliding mode, and the guide plate 306 is installed outside the threaded rod on the side face of the outer cylinder 201 in a penetrating mode; the sliding chute 307 is of a rectangular structure, and the inner side of the sliding chute 307 is connected with the inner cavity 301; the cleaning plate 308 is used for cleaning the side surfaces of the inner plate 303 and the outer plate 302 by the cleaning plate 308, the cleanliness of the inner plate 303 and the outer plate 302 is kept, the opening of the side surfaces of the inner plate 303 and the outer plate 302 is prevented from being blocked by sundries, the balance of the water level is prevented from being influenced, two sides of the cleaning plate 308 are provided with brushes, the cleaning plate 308 is slidably arranged between the outer plate 302 and the inner plate 303, the cleaning plate 308 is connected with the sliding plate 304 through a connecting plate, the side end of the cleaning plate 308 slides in the sliding groove 307, the inner cavity 301 is arranged on the inner side of the outer cylinder 201, the water surface ripple fluctuation caused by the water level change is realized, the outer plate 302 and the inner plate 303 are moved in the inner cavity 301 under the action of a spring, the outer plate 302 and the inner plate 303 can be used for stabilizing the water surface change, the influence of the water surface ripple on the floating plate 103 is reduced, the opening of the side surface of the 302 is larger than the opening of the side surface of the inner plate 303, and the sundries and the silt in the water can be filtered, prevent to influence the monitoring of kickboard 103 to the regimen, the threaded rod through the waterproof motor drive urceolus 201 side of urceolus 201 side rotates, make the threaded rod rotate and drive slide 304 and slide along urceolus 201, make scraper blade 305 to the adnexed pasture and water in the urceolus 201 outside, debris are cleared up, reduce debris to the unsteady influence of urceolus 201, slide 304 removes and drives deflector 306 through the spring and removes simultaneously, make deflector 306 stir the great pasture and water or debris of aquatic, be convenient for slide 304's removal, slide 304 drives clearance board 308 through the connecting plate along spout 307 and removes.

In another embodiment, a micro motor is used to drive a threaded rod inside the vertical groove 101 to rotate, so that the threaded rod drives the positioning plate 102 to move, when the body 1 is in water, the micro motor can be controlled through remote control, the position of the positioning plate 102 is adjusted, and the danger of adjusting water drainage of a person is reduced.

Referring to fig. 9, the following steps are included:

firstly, a body 1 is arranged at a position close to the bank of a reservoir or a dam, and the change of the water level is observed;

secondly, setting a preset value according to the position of the capacity adjusting positioning plate 102 of the reservoir or the dam;

thirdly, the waterproof motor drives the rotating plate 203 through the meshing of the gears, so that the blades on the inner side of the rotating plate cut aquatic weeds;

fourthly, the filter holes at the top of the bottom plate 204 filter the chopped aquatic weeds or other sundries;

fifthly, the convex lens on the top of the outer cylinder 201 magnifies the scales on the body 1;

sixthly, the floating plate 103 moves to reach a preset value, an alarm lamp gives an alarm, and meanwhile, a monitoring result is transmitted to a regimen station for analysis through a signal transmitter at the top of the floating plate;

seventhly, the outer plate 302 and the inner plate 303 reduce the influence of the water surface ripple fluctuation on the floating plate 103;

eighthly, the scrapers 305 clean the aquatic weeds or sundries attached to the outer side of the outer cylinder 201, and buoyancy of the outer cylinder 201 is improved.

When in use: when the water conservancy flood prevention early warning device is used in water condition monitoring, firstly, the body 1 is arranged at a position of a reservoir or a dam close to a bank, a threaded rod in the vertical groove 101 is rotated, a preset value is set according to the position of the capacity adjusting positioning plate 102 of the reservoir or the dam, the outer cylinder 201 is provided with buoyancy to drive the waterproof motor to move, the waterproof motor drives the rotating plate 203 to rotate in the bottom groove 202 through the meshing of gears, a blade at the inner side of the rotating plate 203 cuts aquatic weeds to prevent the aquatic weeds from winding the outer cylinder 201, the bottom plate 204 is arranged at the outer side of the body 1 to slide to ensure that the inner side of the outer cylinder 201 does not contact with the floating plate 103, a filter hole at the top of the bottom plate 204 filters the chopped aquatic weeds or other sundries, the floating plate 103 slides along the body 1, the pointer 104 points to the scale at the side of the body 1, the convex lens at the top of the outer cylinder 201 amplifies the scale on the body 1 to improve the reading accuracy, and the floating plate 103 moves to reach the preset value, peripheral staff is reminded in alarm lamp alarm at kickboard 103 top, the signal transmitter through its top makes the result of monitoring transmit the regimen station to carry out the analysis simultaneously, make planking 302 and inner panel 303 remove in inner chamber 301 under the effect of spring, reduce the influence of surface of water ripple fluctuation to kickboard 103, the threaded rod of waterproof motor drive urceolus 201 side drives slide 304 and removes, scraper blade 305 is to adnexed pasture and water or debris clearance in the urceolus 201 outside, improve the buoyancy of urceolus 201, slide 304 drives the side clearance of clearance board 308 to planking 303 and planking 302 through the connecting plate simultaneously, keep inner panel 303 and the filtration of planking 302 trompil to aquatic debris.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.