Automatic flood control early warning device for hydraulic dam

Abstract

The utility model relates to an automatic flood control early warning device for a hydraulic dam. Comprising a mounting seat and a protective screen frame which are arranged in sequence, a water level detection assembly arranged in the protective screen frame, a protective flow guide cover arranged at the top of the mounting seat and arranged above the water level detection assembly, a rainfall intensity detection assembly arranged at the top of the protective flow guide cover, and a cleaning assembly arranged on the protective flow guide cover and used for cleaning the protective screen frame. The water level detection assembly can automatically monitor the water level condition of the position of the hydraulic dam, the protective screen frame can well protect, shield and filter the water level detection assembly, so that the water level detection assembly can accurately monitor the water level condition, the rainfall intensity detection assembly can automatically monitor the rainfall intensity of the position of the hydraulic dam, and the working efficiency is improved. Alarm can be given out according to the water level condition and the rainfall intensity condition to achieve automatic flood prevention early warning, the structure is simple, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of flood prevention early warning monitoring equipment, and in particular relates to an automatic flood prevention early warning device for a hydraulic dam. Background Art

[0002] Hydraulic dam is an important part of water conservancy projects, and its operating status is directly related to the safety of downstream areas. In order to ensure that the hydraulic dam operates within a safe range, the water level of the hydraulic dam is generally monitored through flood warning. In addition, during the flood season, the data support of flood warning monitoring can be used to more accurately schedule the opening and closing time of the hydraulic dam to ensure the maximization of flood control effects.

[0003] The flood prevention and warning devices in the prior art, such as a reservoir water level monitoring alarm disclosed in Patent No. CN211855500U, specifically disclose a sliding rod, a spring, and a plastic foam ball. Its working principle is to reflect the water level in real time through the floating height of the plastic foam ball. However, there are still problems when using it. Specifically, the outside of the buoyancy parts such as springs and plastic foam balls does not have a protective structure or a cleaning structure. The buoyancy parts such as springs and plastic foam balls are easily entangled by aquatic plants, leaves and other debris in the flood, which makes it difficult for the buoyancy parts to float to the water surface, and the monitoring results are not accurate enough. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic flood warning device for a hydraulic dam in order to solve the above-mentioned problems, aiming to solve the technical problem that in the prior art, the flood warning device uses the buoyancy of water flow to monitor the water level, has no protective structure or cleaning structure, and the buoyancy parts are easily entangled by aquatic plants, leaves and other debris in the flood and are difficult to float to the water surface, resulting in inaccurate monitoring results.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] An automatic flood prevention and early warning device for a hydraulic dam comprises a mounting seat and a protection net frame which are arranged in sequence, a water level detection component arranged inside the protection net frame, a protection guide cover arranged on the top of the mounting seat and protecting above the water level detection component, a rainfall intensity detection component arranged on the top of the protection guide cover, and a cleaning component arranged on the protection guide cover for cleaning the protection net frame;

[0007] It also includes a controller and an alarm body. The controller is used to control the alarm body to issue an alarm according to the water level signal and rainfall intensity signal of the hydraulic dam position detected by the water level detection component and the rainfall intensity detection component.

[0008] As a further optimization scheme of the utility model, the water level detection assembly includes a positioning cylinder and a floating pressure piece slidably connected to the positioning cylinder. The positioning cylinder includes a cylinder body and a moving channel vertically opened inside the cylinder body. The floating pressure piece includes a pressure head with a hollow interior and a floating base provided on the top of the pressure head and sliding up and down inside the moving channel.

[0009] The water level detection assembly also includes a plurality of mounting grooves which are sequentially opened on the inner wall of the movable channel from top to bottom, a spring arranged inside the mounting groove, and a pressure sensor which is connected to the movable end of the spring and extends from the inside of the mounting groove to the inside of the movable channel.

[0010] As a further optimization solution of the present invention, the distance between the next two adjacent pressure sensors is smaller than the height of the floating base.

[0011] As a further optimization scheme of the utility model, the rainfall intensity detection component includes a second pressure sensor arranged on the top of the protective deflector cover, and a rain collecting diversion hopper arranged on the top of the protective deflector cover and located above the second pressure sensor, and the rainwater diversion outlet of the rain collecting diversion hopper is located above the second pressure sensor.

[0012] As a further optimization solution of the utility model, the lower edge of the wall of the protective deflector is aligned with the wall of the protective net frame to guide rainwater to wash the wall of the protective net frame.

[0013] As a further optimization solution of the utility model, the cleaning component includes a servo motor, a turntable arranged on the output shaft of the servo motor, at least one connecting rod arranged at the bottom of the turntable, and a cleaning brush arranged on the side wall of the connecting rod close to the protective net frame.

[0014] The beneficial effects of the utility model are:

[0015] 1) The utility model can automatically monitor the water level at the hydraulic dam through the water level detection component. The protective net frame can form a good protection, shielding and filtering effect on the water level detection component, so that it can monitor the water level more accurately. The rainfall intensity at the hydraulic dam can be automatically monitored through the rainfall intensity detection component. An alarm can be issued according to the water level and rainfall intensity to achieve automatic flood prevention warning. The structure is simple and easy to use.

[0016] 2) The utility model guides rainwater along the lower edge of the wall of the protective deflector to align with the wall of the protective net frame to flush the wall of the protective net frame. Under the flushing effect, the water plants, leaves and other debris on the wall of the protective net frame can be washed away. The wall of the protective net frame is cleaned by the cleaning component to avoid or reduce the diversion caused by the wall of the protective net frame being blocked by water plants, leaves and other debris, so that the water level signal detected by the water level detection component is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a partial structural schematic diagram of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the positioning cylinder and the floating pressure piece of the utility model.

[0020] Figure 4 It is a cross-sectional view of the floating pressure member of the utility model.

[0021] Figure 5 It is a top view of the protective net frame and the protective air guide cover of the utility model.

[0022] In the figure: 1. cement base; 2. mounting seat; 3. protective net frame; 4. positioning cylinder; 41. cylinder body; 42. moving channel; 5. floating pressure piece; 51. pressure head; 52. floating base; 6. mounting slot; 7. spring; 8. pressure sensor 1; 9. protective deflector; 10. controller; 11. rainwater diversion bucket; 12. pressure sensor 2; 13. alarm body; 14. servo motor; 15. turntable; 16. connecting rod; 17. cleaning brush. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] like Figure 1-5 As shown, an automatic flood prevention and early warning device for a hydraulic dam comprises a mounting seat 2 and a protection net frame 3 which are arranged in sequence, a water level detection component arranged inside the protection net frame 3, a protection guide cover 9 which is arranged on the top of the mounting seat 2 and protected above the water level detection component, a rainfall intensity detection component which is arranged on the top of the protection guide cover 9, and a cleaning component which is arranged on the protection guide cover 9 and is used to clean the protection net frame 3;

[0025] It also includes a controller 10 and an alarm body 13. The controller 10 is used to control the alarm body 13 to issue an alarm according to the water level signal and rainfall intensity signal at the hydraulic dam position detected by the water level detection component and the rainfall intensity detection component.

[0026] Preferably, the water level detection assembly includes a positioning cylinder 4, a floating pressure member 5 slidably connected to the positioning cylinder 4, the positioning cylinder 4 includes a cylinder body 41, a moving channel 42 vertically opened inside the cylinder body 41, and the floating pressure member 5 includes a pressure head 51 with a hollow interior, and a floating base 52 provided on the top of the pressure head 51 and sliding up and down inside the moving channel 42;

[0027] The water level detection assembly also includes a plurality of mounting grooves 6 which are sequentially opened on the inner wall of the movable channel 42 from top to bottom, a spring 7 which is arranged inside the mounting groove 6, and a pressure sensor 8 which is connected to the movable end of the spring 7 and extends from the inside of the mounting groove 6 to the inside of the movable channel 42. The pressure sensor 8 is a HWJ1 pressure sensor.

[0028] Preferably, the distance between the two adjacent upper and lower pressure sensors 8 is smaller than the height of the floating base 52, ensuring that during the upward movement of the pressure head 51, at least one of the pressure sensors 8 at one height position can be pressed, and the water level signal can be monitored in real time.

[0029] It should be noted that, in this embodiment, the mounting seat 2 can be installed at the position to be detected by pre-casting and curing the cement base 1 at the position to be detected in the water at the hydraulic dam position, and the floating base 52 is used to contact the water surface and float on the water surface under the buoyancy of the water;

[0030] The top of the cement base 1 is provided with a plurality of screw rods, and the mounting seat 2 is provided with mounting holes corresponding to the screw rods one by one. The mounting seat 2 is placed on the top of the cement base 1, and the screw rods on the cement base 1 are passed through the mounting holes and tightened by fixing nuts, so that the mounting seat 2 and the components on the top of the mounting seat 2 are fixed to the top of the cement base 1.

[0031] During use, the pressure head 51 is hollow inside, and under the action of the buoyancy of water, it will drive the floating base 52 to float up. As the water level rises, the positions of the pressure head 51 and the floating base 52 relative to the positioning tube 4 will gradually move up. The upward movement of the floating base 52 will press against the pressure sensors 8 at different heights. After the different pressure sensors 8 are pressed, they will reflect the water level signals detected at different water levels. The water level signal will be transmitted to the controller 10. The controller 10 controls the alarm body 13 to sound an alarm according to the water level signal. Water level signals at different water levels can send out different alarm signals, thereby realizing graded warning. The graded warning settings corresponding to the specific water level signals can be set according to actual conditions.

[0032] Preferably, the rainfall intensity detection component includes a pressure sensor 12 arranged on the top of the protective deflector 9, and a rainwater collecting diversion hopper 11 arranged on the top of the protective deflector 9 and located above the pressure sensor 12, the rainwater diversion outlet of the rainwater collecting diversion hopper 11 is located above the pressure sensor 12, and the pressure sensor 12 uses a SEN1003 piezoelectric quartz dynamic pressure sensor.

[0033] When it rains, rainwater is received by the rain diversion bucket 11 and diverted to the pressure sensor 12. The pressure detected by the pressure sensor 12 is reflected as a rainfall intensity signal. The rainfall intensity signal detected by the pressure sensor 12 is transmitted to the controller 10. The controller 10 controls the alarm body 13 to sound an alarm according to the rainfall intensity signal. Different rainfall intensity signals can send out different alarm signals, thereby realizing graded warning. The graded warning setting corresponding to the specific rainfall intensity signal can be set according to the actual situation. In addition, the water level signal and the rainfall intensity signal can be used separately or in combination. When used in combination, the graded warning setting corresponding to the specific combination of the water level signal and the rainfall intensity signal can be set according to the actual situation.

[0034] Preferably, the lower edge of the wall of the protective deflector 9 is aligned with the wall of the protective net frame 3 to guide rainwater to wash the wall of the protective net frame 3.

[0035] The rainwater falling on the pressure sensor 2 12 and the top of the protective deflector 9 will be directed toward the wall of the protective net frame 3 through the lower edge of the wall of the protective deflector 9, thereby flushing the wall of the protective net frame 3. Under this flushing action, water plants, leaves and other debris on the wall of the protective net frame 3 can be flushed away, which also achieves the effect of cleaning the wall of the protective net frame 3.

[0036] Preferably, the cleaning component includes a servo motor 14, a turntable 15 arranged on the output shaft of the servo motor 14, at least one connecting rod 16 arranged at the bottom of the turntable 15, and a cleaning brush 17 arranged on the side wall of the connecting rod 16 close to the protective net frame 3. The servo motor 14 drives the turntable 15, the connecting rod 16, and the cleaning brush 17 to rotate together. The cleaning brush 17 rotates to clean the wall surface of the protective net frame 3, thereby avoiding or reducing the diversion caused by the wall surface of the protective net frame 3 being blocked by water plants, leaves and other debris, so that the water level signal detected by the water level detection component is more accurate.

[0037] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. An automatic flood prevention warning device for a hydraulic dam, characterized in that: The invention comprises a mounting seat (2) and a protective net frame (3) which are arranged in sequence, a water level detection component arranged inside the protective net frame (3), a protective flow guide cover (9) arranged on the top of the mounting seat (2) and protecting above the water level detection component, a rainfall intensity detection component arranged on the top of the protective flow guide cover (9), and a cleaning component arranged on the protective flow guide cover (9) for cleaning the protective net frame (3); It also includes a controller (10) and an alarm body (13), wherein the controller (10) is used to control the alarm body (13) to issue an alarm according to the water level signal and the rainfall intensity signal at the hydraulic dam position detected by the water level detection component and the rainfall intensity detection component.

2. The automatic flood prevention warning device for hydraulic dams according to claim 1 is characterized in that: The water level detection assembly comprises a positioning cylinder (4), a floating pressure member (5) slidably connected to the positioning cylinder (4), the positioning cylinder (4) comprises a cylinder body (41), a moving channel (42) vertically opened inside the cylinder body (41), and the floating pressure member (5) comprises a pressure head (51) with a hollow interior, and a floating base (52) arranged on the top of the pressure head (51) and sliding up and down inside the moving channel (42); The water level detection assembly further comprises a plurality of mounting grooves (6) which are sequentially opened on the inner wall of the movable channel (42) from top to bottom, a spring (7) which is arranged inside the mounting groove (6), and a pressure sensor (8) which is connected to the movable end of the spring (7) and extends from the inside of the mounting groove (6) to the inside of the movable channel (42).

3. The automatic flood prevention warning device for hydraulic dams according to claim 2 is characterized in that: The distance between two adjacent upper and lower pressure sensors (8) is smaller than the height of the floating base (52).

4. The automatic flood prevention and early warning device for hydraulic dams according to claim 1 is characterized by: The rainfall intensity detection component comprises a second pressure sensor (12) arranged on the top of the protective deflector (9), and a rainwater receiving diversion hopper (11) arranged on the top of the protective deflector (9) and located above the second pressure sensor (12), wherein the rainwater diversion outlet of the rainwater receiving diversion hopper (11) is located above the second pressure sensor (12).

5. The automatic flood prevention and early warning device for hydraulic dam according to claim 1 is characterized by: The lower edge of the wall surface of the protective deflector (9) is aligned with the wall surface of the protective net frame (3) so as to guide rainwater to wash the wall surface of the protective net frame (3).

6. The automatic flood prevention and early warning device for hydraulic dams according to claim 1 is characterized by: The cleaning component comprises a servo motor (14), a turntable (15) arranged on the output shaft of the servo motor (14), at least one connecting rod (16) arranged at the bottom of the turntable (15), and a cleaning brush (17) arranged on the side wall of the connecting rod (16) close to the protective net frame (3).

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