CN116380204A - Water conservancy flood prevention monitoring system - Google Patents

Abstract

The invention discloses a water conservancy flood control monitoring system, which belongs to the technical field of water conservancy flood control. A water conservancy and flood control monitoring system, comprising a fixed rod fixed at the bottom of the water, upper and lower sides of the fixed rod are respectively provided with an upper limit plate and a lower limit plate, the lower limit plate is provided with a shell, the shell is slidably connected to the fixed rod, and the shell There are a lower mounting base and an upper mounting base inside, a water level sensor is installed on the lower mounting base, an audible and visual alarm is installed on the upper mounting base, and the top and bottom of the shell are respectively provided with access ports for the water level sensor and the audible and visual alarm. Concave hole, a plugging component is arranged at the concave hole; the invention has simple structure and convenient operation, and can store the flood control equipment in the dry season to avoid long-term exposure and reduce its service life, and at the same time, the flood control equipment will be automatically moved out of the monitoring water level when the flood season comes It provides convenient and accurate data for the statistics of water level monitoring.

Description

A water conservancy flood control monitoring system

technical field

The invention relates to the technical field of water conservancy and flood control, in particular to a monitoring system for water conservancy and flood control.

Background technique

Water is the source of life and an indispensable precious resource for human production and life. In order to make full use of and preserve water resources, we can effectively prevent floods by building water conservancy projects, and adjust and distribute water to meet people's life and production requirements. The need for water resources. Flood control is to prevent and mitigate flood disasters, related work carried out in flood forecasting, flood control dispatching, and flood control engineering application. In water conservancy projects, it is necessary to monitor the river water level during the flood season.

However, there are still many deficiencies in the actual use of flood control equipment. For example, the flood control equipment is idle during the dry season and is in an exposed state. It is affected by the wind and sun in the external environment, which will affect its life; The alarm light is easily blocked by other structures of the device during use, which affects its alarm effect.

Contents of the invention

The object of the present invention is to propose a monitoring system for water conservancy and flood control in order to solve the problems existing in the prior art.

In order to achieve the above object, the present invention adopts the following technical solutions:

A water conservancy and flood control monitoring system, comprising a fixed rod fixed at the bottom of the water, upper and lower sides of the fixed rod are respectively provided with an upper limit plate and a lower limit plate, the lower limit plate is provided with a shell, and the shell is slidably connected On the fixed rod, a lower mounting base and an upper mounting base are arranged in the housing, a water level sensor is arranged on the lower mounting base, an acousto-optic alarm is arranged on the upper mounting base, and the top of the housing and the The bottom is respectively provided with recessed holes for the water level sensor and the sound and light alarm to enter and exit, the recessed holes are provided with a blocking assembly, and the housing is provided with a lifting mechanism for driving the movement of the lower mounting base and the upper mounting base. A number of floating boards are uniformly arranged on the outer side of the shell, and a pull rope is arranged between the floating boards and the lower mounting seat.

Preferably, a plurality of ear plates are provided on the outside of the housing, two of the ear plates form a group, and a connecting rod connected to the floating plate is rotatably connected between the two of the ear plates.

Preferably, the lifting mechanism includes a rotating shaft rotatably connected in the casing, a first gear is arranged on the rotating shaft, and a first rack and a second rack are respectively meshed and connected on both sides of the first gear, so that The first rack is fixedly connected with the lower mounting base, a first elastic element is arranged between the lower mounting base and the inner wall of the casing, and the second rack is fixedly connected with the upper mounting base.

Preferably, the blocking assembly includes a movable groove opened on the shell and connected to the concave hole, a blocking plate is slidably connected to the inner wall of the movable groove, and a second elastic element is arranged between the blocking plate and the movable groove , the end of the blocking plate away from the second elastic element is provided with a pressing slope.

Preferably, the upper mounting seat includes a base plate and a rotating plate connected to the base plate in rotation, the sound and light alarm is fixed on the rotating plate, a support is provided at the bottom of the base plate, and a support is rotatably connected to the support A rotating rod, the rotating rod is provided with a main bevel gear, the casing is provided with a transmission assembly connected with the main bevel gear, the main bevel gear is connected with a spray assembly through the transmission assembly, and the rotating plate is provided with a The main bevel gear meshes with the bevel gear ring, the rotating rod is provided with a second gear, the fixed rod is provided with a groove, and the inner wall of the groove is provided with a third rack meshed with the second gear.

Preferably, the housing includes a shell with an opening at the upper end and a top plate rotatably connected to the opening, the concave hole on the upper side of the housing is set on the top plate, a guide rod is provided at the bottom of the top plate, and the rotating plate Slidingly attached to the guide rod.

Preferably, the spray assembly includes a spray box fixed at the bottom of the shell, and the spray box is provided with a spray hole and a water inlet pipe, and a check valve is arranged at the spray hole and the water inlet pipe, and the inside of the spray box A piston plate is slidably connected, a third elastic element is arranged between the piston plate and the inner wall of the spray box, a slide rod is arranged at one end of the piston plate away from the third elastic element, and a slide rod is arranged at an end of the slide rod away from the piston plate. Force plate.

Preferably, the transmission assembly includes a rotating rod rotatably connected to the housing, the top of the rotating rod is connected with an auxiliary bevel gear meshed with the main bevel gear, and the end of the rotating rod away from the auxiliary bevel gear passes through the housing and It is connected with a cam that is movable against the force plate.

Preferably, a storage battery and a circuit board are arranged on the upper mounting base, the circuit board is connected to a terminal through a wireless module, the storage battery is electrically connected to the water level sensor, the sound and light alarm and the circuit board, and the storage battery is provided outside There is a push switch, and the said push switch offsets the activity of the shell.

Preferably, a protective net is provided on the lower mounting base, and the protective net is sleeved on the outside of the water level sensor.

Compared with the prior art, the present invention provides a water conservancy flood control monitoring system, which has the following beneficial effects:

1. The water conservancy flood control monitoring system, through the cooperation of the floating plate and the lifting mechanism, can store the flood control equipment in the dry season, avoid long-term exposure and reduce its service life, and at the same time automatically move the flood control equipment out of the monitoring water level when the flood season comes. , providing convenient and accurate data for water level monitoring statistics, simple structure, convenient operation, and easy promotion.

2. The water conservancy and flood control monitoring system, by setting a blocking plate at the concave hole of the casing, is convenient to ensure a relatively sealed environment of the casing, and effectively protects the water level sensor and the sound and light alarm in the storage state. When the flood season comes, the lifting mechanism When the water level sensor and the sound and light alarm are driven out of the shell, the force is exerted on the extrusion slope of the block plate, so that the block plate squeezes the second elastic element, and the block plate avoids the movement of the water level sensor and the sound and light alarm , so that it leaves the shell to monitor and warn the water level.

3. The water conservancy and flood control monitoring system, through the rise of the water level, makes the casing move up under the action of the floating plate. During the upward movement of the casing, the second gear on the rotating rod is meshed with the third rack in the groove for transmission. , and then the second gear drives the rotating rod and the main bevel gear to rotate, and the main bevel gear is engaged with the bevel gear ring on the rotating plate for transmission, so that the rotating plate drives the sound and light alarm to rotate relative to the fixed rod, so that the sound and light alarm rotates on the fixed The outside of the pole allows people in all directions to see the bright light of the alarm, avoiding the light blocking of the sound and light alarm by the fixed pole, thereby ensuring its early warning effect.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structure schematic diagram that floating plate expands during the flood season of the present invention;

Fig. 3 is a schematic cross-sectional structure diagram 1 of the housing of the present invention;

Fig. 4 is a schematic diagram of a partially enlarged structure of part A in Fig. 3 of the present invention;

Fig. 5 is a schematic sectional structure diagram II of the housing of the present invention;

Fig. 6 is a schematic cross-sectional structure diagram of the top plate of the present invention;

Fig. 7 is a schematic structural view of the injection assembly of the present invention.

Among the figure: 1, fixed rod; 101, upper limit plate; 102, lower limit plate; 2, shell; 201, shell; 202, top plate; 2021, guide rod; 203, concave hole; , protective net cover; 4, upper mounting seat; 401, bottom plate; 4011, support; 402, rotating plate; 4021, bevel gear ring; 5, water level sensor; 6, sound and light alarm; 7, floating plate; 8, Pull cord; 9, rotating shaft; 901, first gear; 902, first rack; 903, second rack; 10, first elastic element; 11, movable groove; 111, blocking plate; 112, second Elastic element; 12, rotating rod; 121, main bevel gear; 122, second gear; 13, groove; 131, third rack; 14, storage battery; 141, push switch; 15, circuit board; 16, injection box 161, injection hole; 162, water inlet pipe; 163, piston plate; 164, the third elastic element; 165, slide bar; 166, force plate; 17, rotating rod; 171, secondary bevel gear; 172, cam; 18 , ear plate; 181, connecting rod.

Implementation

The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only part of the embodiments of the present invention, not all embodiments, based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom" etc. are based on the orientations shown in the drawings Or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "set with", "sleeved/connected", "connected", etc. should be understood in a broad sense, such as " Connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal connection between two components. connection; those skilled in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Example

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 5 and Fig. 6, a water conservancy and flood control monitoring system includes a fixed rod 1 fixed on the bottom of the water, and the upper and lower sides of the fixed rod 1 are respectively provided with an upper limit plate 101 and a lower limit plate. Plate 102, the lower limit plate 102 is provided with a housing 2, the housing 2 is slidably connected to the fixed rod 1, the housing 2 is provided with a lower mounting seat 3 and an upper mounting seat 4, the lower mounting seat 3 is provided with a water level sensor 5, and the upper mounting base 3 is provided with a water level sensor 5. The mounting base 4 is provided with a sound and light alarm 6, and the top and bottom of the housing 2 are respectively provided with recessed holes 203 for the water level sensor 5 and the sound and light alarm 6 to enter and exit. A lifting mechanism for driving the lower mounting base 3 and the upper mounting base 4 is arranged inside, and a number of floating plates 7 are evenly arranged on the outer side of the housing 2 , and a pull rope 8 is arranged between the floating plates 7 and the lower mounting base 3 .

Further, a plurality of ear plates 18 are provided on the outside of the housing 2 , two ear plates 18 form a group, and a connecting rod 181 connected to the floating plate 7 is rotatably connected between the two ear plates 18 .

Specifically, during the dry season, the housing 2 is offset against the lower limit plate 102 on the bottom side of the fixed rod 1, and the water level sensor 5 and the sound and light alarm 6 are placed in the housing 2 during the dry season, which can avoid long-term exposure and ensure its service life. When the flood season comes, the water level rises, and the buoyancy of the floating plate 7 is relatively large, and the floating plate 7 drives the casing 2 to move upward on the outside of the fixed rod 1, and the floating plate 7 rotates with the connecting rod 181 as the center of the circle, and the floating plate 7 deflects relative to the casing 2 , the floating plate 7 generates a pulling force on the stay rope 8, the stay rope 8 drives the lower mounting seat 3 to move, and then the lifting mechanism works, the water level sensor 5 and the sound and light alarm 6 are moved out from the concave hole 203, and the water level is monitored and given an early warning. The utility model provides convenient and accurate data for the statistics of water level monitoring, has a simple structure, is convenient to operate, and is easy to popularize.

Referring to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, as a preferred technical solution of the present invention, the lifting mechanism includes a rotating shaft 9 rotatably connected in the housing 2, and the rotating shaft 9 is provided with a first gear 901, the first gear 901 The first rack 902 and the second rack 903 are respectively meshed and connected on both sides, the first rack 902 is fixedly connected with the lower mounting base 3, and the first elastic element 10 is arranged between the lower mounting base 3 and the inner wall of the housing 2, and the second The second rack 903 is fixedly connected with the upper mounting base 4; specifically, the lower mounting base 3 moves downward under the pulling force of the stay rope 8, the first elastic element 10 is compressed, and the first rack 902 on the lower mounting base 3 It is engaged with the first gear 901 on the rotating shaft 9 for transmission, and the first gear 901 is engaged with the second rack 903 on the other side for transmission. The second rack 903 drives the upper mounting seat 4 to move upward, thereby making the water level sensor 5 and the sound The light alarm 6 moves down and up respectively and moves to the outside of the shell 2, so that it leaves the shell 2 to monitor and warn the water level. When the water level drops later, the first elastic element 10 recovers and drives the floating plate through the pull rope 8 7. Move down and reset, and the upper mounting base 4 and the lower mounting base 3 automatically reset, so that the water level sensor 5 and the sound and light alarm 6 are stored in the shell 2 to protect them.

Referring to Fig. 3, Fig. 5 and Fig. 6, as a preferred technical solution of the present invention, the blocking assembly includes an active groove 11 provided on the shell 2 and connected to the concave hole 203, the inner wall of the active groove 11 is slidingly connected with a blocking plate 111, A second elastic element 112 is provided between the blocking plate 111 and the movable groove 11, and an extruding inclined surface is provided on the end of the blocking plate 111 away from the second elastic element 112; The blocking plate 111 is convenient to ensure the relatively sealed environment of the casing 2, and effectively protects the water level sensor 5 and the sound and light alarm 6 in the storage state. When the flood season comes, the lifting mechanism drives the water level sensor 5 and the sound and light alarm 6 to move out of the casing 2 At this time, the force applied to the extrusion slope of the blocking plate 111 makes the blocking plate 111 squeeze the second elastic element 112, and the blocking plate 111 avoids the movement of the water level sensor 5 and the sound and light alarm 6, making it leave The shell 2 monitors and warns the water level.

Referring to Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, as a preferred technical solution of the present invention, the upper mounting seat 4 includes a base plate 401 and a rotating plate 402 connected to the base plate 401 in rotation, and the sound and light alarm 6 is fixed on On the rotating plate 402, the bottom of the base plate 401 is provided with a support 4011, the support 4011 is rotatably connected with a rotating rod 12, the rotating rod 12 is provided with a main bevel gear 121, and the casing 2 is provided with a transmission gear connected to the main bevel gear 121. Assemblies, the main bevel gear 121 is connected with the injection assembly through the transmission assembly, the bevel gear ring 4021 meshing with the main bevel gear 121 is provided on the rotating plate 402, the second gear 122 is provided on the rotating rod 12, and the fixed rod 1 is provided with Groove 13 , the inner wall of the groove 13 is provided with a third rack 131 meshed with the second gear 122 .

Further, the shell 2 includes a shell 201 with an opening at the upper end and a top plate 202 rotatably connected to the opening. The concave hole 203 on the upper side of the shell 2 is opened on the top plate 202. The bottom of the top plate 202 is provided with a guide rod 2021. The rotating plate 402 is slidingly connected on the guide rod 2021.

Specifically, through the rise of the water level, the casing 2 is moved up under the action of the floating plate 7, the sound and light alarm 6 is placed on the outside of the casing 2 through the concave hole 203, and the first part on the rotating rod 12 is moved up during the upward movement of the casing 2. The second gear 122 meshes with the third rack 131 in the groove 13 for transmission, and then the second gear 122 drives the rotating rod 12 and the main bevel gear 121 to rotate, and the main bevel gear 121 is engaged with the bevel gear ring 4021 on the rotating plate 402 for transmission , so that the rotating plate 402 drives the sound and light alarm 6 to rotate relative to the fixed rod 1, and the sound and light alarm 6 drives the top plate 202 to rotate relative to the housing 201, so that the sound and light alarm 6 rotates on the outside of the fixed rod 1, so that personnel in all directions can Watch the bright light of the alarm, avoid the light blocking of the fixed rod 1 to the sound and light alarm 6, thereby ensuring its early warning effect, and the guide rod 2021 connected to the lower side of the top plate 202 can make the rotating plate 402 and the top plate 202 rotate consistently, ensuring The position of the sound and light alarm 6 matches the concave hole 203 on the top plate 202 .

Referring to Fig. 3, Fig. 4, Fig. 5 and Fig. 7, as a preferred technical solution of the present invention, the spray assembly includes a spray box 16 fixed at the bottom of the casing 2, the spray box 16 is provided with a spray hole 161 and a water inlet pipe 162, and the spray box 16 The hole 161 and the water inlet pipe 162 are all provided with a one-way valve, and a piston plate 163 is slidably connected in the injection box 16. A third elastic element 164 is arranged between the piston plate 163 and the inner wall of the injection box 16, and the piston plate 163 deviates from the third elastic element. One end of the element 164 is provided with a sliding rod 165 , and the end of the sliding rod 165 away from the piston plate 163 is provided with a force receiving plate 166 .

Further, the transmission assembly includes a rotary rod 17 that is rotatably connected to the casing 2, the top of the rotary rod 17 is connected with a secondary bevel gear 171 meshing with the primary bevel gear 121, and the end of the rotary rod 17 away from the secondary bevel gear 171 passes through the casing 2 and is connected with a cam 172 that is movable against the force plate 166.

Specifically, when the flood season is over, the shell 2 rises to the height of the fixed rod 1 under the action of the floating plate 7. At this time, because the water flow carries more sediment during the flood season, the lower side of the groove 13 on the fixed rod 1 may There is silt, and as the water level drops, the housing 2 slides on the outside of the fixed rod 1, and when the rotating rod 12 drives the main bevel gear 121 to rotate, the main bevel gear 121 meshes with the auxiliary bevel gear 171 on the rotating rod 17, so that the auxiliary bevel gear 171 drives the rotating rod 17 and the cam 172 at the bottom to rotate, and the cam 172 resists the force plate 166 on the outside of the injection box 16, and the force plate 166 drives the piston plate 163 to slide inside the injection box 16 through the slide bar 165. When the piston plate 163 slides The water flow inside the spray box 16 is sprayed to the groove 13 where the casing 2 is about to move down through the spray hole 161, and the relatively high-pressure water flow impacts the sediment retained in the groove 13 to ensure the cleanliness of the groove 13 and avoid It affects the normal downward movement of the shell 2, causing the equipment not to be on the bottom side when the next flood season comes, so that the water level monitoring and early warning is not timely. Reset under the action of elastic force, and the water body is extracted and replenished through the water inlet pipe 162 to prepare for the subsequent spraying work. It should be noted that a filter screen should be provided at the port of the water inlet pipe 162 to intercept impurities.

Referring to Fig. 3 and Fig. 5, as the preferred technical scheme of the present invention, accumulator 14 and circuit board 15 are arranged on the upper mounting base 4, circuit board 15 is connected with terminal by wireless module, accumulator 14 and water level sensor 5, acousto-optic alarm 6 is electrically connected to the circuit board 15, and a push switch 141 is arranged on the outside of the battery 14, and the push switch 141 is offset against the movement of the shell 2; specifically, when the lifting mechanism works, the upper mounting seat 4 drives the battery 14 to move upward, and the upper mounting seat 4 Gradually approaching the top of the shell 2, the shell 2 exerts force on the push switch 141, so that the battery 14 supplies power to the water level sensor 5, the sound and light alarm 6 and the circuit board 15, and the water level sensor 5 and the sound and light alarm 6 are in the standby working state. The water level sensor 5 of the shell 2 monitors the water level and transmits the monitored information to the background terminal or mobile terminal through the circuit board 15. When the water level sensor 5 detects that the water level rises to the warning position, the circuit board 15 controls the sound and light alarm 6. Work and give early warning to surrounding personnel.

Referring to Fig. 3, as a preferred technical solution of the present invention, the lower mounting base 3 is provided with a protective net cover 301, and the protective net cover 301 is sleeved on the outside of the water level sensor 5; specifically, by setting the protective net outside the water level sensor 5 The cover 301 can effectively protect the water level sensor 5, avoiding the debris carried in the water flow from colliding with the water level sensor 5 during the flood season, causing damage to the water level sensor 5, and then providing convenient and accurate data for water level monitoring statistics.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (10)

1. A water conservancy and flood control monitoring system, comprising a fixed rod (1) fixed at the bottom of the water, characterized in that the upper and lower sides of the fixed rod (1) are respectively provided with an upper limit plate (101) and a lower limit plate ( 102), the lower limiting plate (102) is provided with a casing (2), the casing (2) is slidably connected to the fixing rod (1), and the casing (2) is provided with a lower mounting seat (3) and the upper mounting base (4), the lower mounting base (3) is provided with a water level sensor (5), the upper mounting base (4) is provided with an audible and visual alarm (6), and the housing (2 ) are respectively provided with concave holes (203) for the entry and exit of the water level sensor (5) and the sound and light alarm (6). A lifting mechanism for driving the movement of the lower mounting base (3) and the upper mounting base (4) is arranged inside, and a number of floating plates (7) are evenly arranged on the outside of the outer shell (2), and the floating plates (7) and A stay rope (8) is arranged between the lower mounts (3). 2. A monitoring system for water conservancy and flood control according to claim 1, characterized in that several ear plates (18) are arranged on the outer side of the housing (2), two of the ear plates (18) form a group, and A connecting rod (181) connected with the floating plate (7) is rotatably connected between the two ear plates (18). 3. A water conservancy and flood control monitoring system according to claim 1, characterized in that, the lifting mechanism includes a rotating shaft (9) rotatably connected in the housing (2), and the rotating shaft (9) is provided with The first gear (901), the first rack (902) and the second rack (903) are meshed on both sides of the first gear (901), respectively, the first rack (902) and the lower mounting seat (3) Fixedly connected, a first elastic element (10) is arranged between the lower mounting base (3) and the inner wall of the casing (2), and the second rack (903) is fixedly connected to the upper mounting base (4) . 4. A water conservancy and flood control monitoring system according to claim 3, characterized in that, the blocking assembly includes an active groove (11) set on the casing (2) and connected to the concave hole (203), the A blocking plate (111) is slidably connected to the inner wall of the movable groove (11), and a second elastic element (112) is arranged between the blocking plate (111) and the movable groove (11), and the blocking plate (111) An extruding slope is provided at the end away from the second elastic element (112). 5. A water conservancy and flood control monitoring system according to claim 3, characterized in that, the upper mounting base (4) includes a bottom plate (401) and a rotating plate (402) connected in rotation with the bottom plate (401 ), the The sound and light alarm (6) is fixed on the rotating plate (402), the bottom of the bottom plate (401) is provided with a support (4011), and the support (4011) is rotatably connected with a rotating rod (12), The main bevel gear (121) is provided on the rotating rod (12), and the transmission assembly connected with the main bevel gear (121) is provided on the casing (2), and the main bevel gear (121) is connected through the transmission assembly There is an injection assembly, the bevel gear ring (4021) meshed with the main bevel gear (121) is set on the rotating plate (402), the second gear (122) is set on the rotating rod (12), the A groove (13) is opened on the fixed rod (1), and the inner wall of the groove (13) is provided with a third rack (131) meshed with the second gear (122). 6. A water conservancy and flood control monitoring system according to claim 5, characterized in that, the housing (2) includes a housing (201) with an opening at the upper end and a top plate (202) rotatably connected to the opening, the The concave hole (203) on the upper side of the casing (2) is opened on the top plate (202), the bottom of the top plate (202) is provided with a guide rod (2021), and the rotating plate (402) is slidably connected to the guide rod ( 2021). 7. A water conservancy and flood control monitoring system according to claim 5, characterized in that the spray assembly includes a spray box (16) fixed at the bottom of the casing (2), and the spray box (16) is provided with The injection hole (161) and the water inlet pipe (162), the said injection hole (161) and the water inlet pipe (162) are both provided with a check valve, the said injection box (16) is slidably connected with a piston plate (163), A third elastic element (164) is arranged between the piston plate (163) and the inner wall of the injection box (16), and a slide rod (165) is arranged at the end of the piston plate (163) away from the third elastic element (164) , the end of the sliding rod (165) away from the piston plate (163) is provided with a force plate (166). 8. A water conservancy and flood control monitoring system according to claim 7, characterized in that, the transmission assembly includes a rotating rod (17) rotatably connected to the casing (2), and the top of the rotating rod (17) is connected to There is an auxiliary bevel gear (171) meshed with the main bevel gear (121), and the end of the rotating rod (17) away from the auxiliary bevel gear (171) passes through the casing (2) and is connected with the force plate (166) Active cams (172). 9. A water conservancy and flood control monitoring system according to claim 1, characterized in that, the upper mount (4) is provided with a battery (14) and a circuit board (15), and the circuit board (15) passes through The wireless module is connected with a terminal, the battery (14) is electrically connected to the water level sensor (5), the sound and light alarm (6) and the circuit board (15), and a push switch (141) is arranged on the outside of the battery (14) , the push switch (141) is offset against the movement of the shell (2). 10. A water conservancy and flood control monitoring system according to claim 1, characterized in that a protective net cover (301) is set on the lower mounting base (3), and the protective net cover (301) is sleeved at the water level outside of the sensor (5).

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