Water conservancy project flood season alarm device

Abstract

The invention discloses a water conservancy project flood season alarm device which comprises a vertical rod and a top frame arranged on the vertical rod, the top frame is provided with an audible and visual alarm used for alarming and a storage battery used for providing electric energy for the audible and visual alarm, and the vertical rod is provided with a warning structure for triggering the audible and visual alarm to give out multi-stage alarming according to the height of the water level. The warning structure comprises a floating plate slidably arranged on the vertical rod in a sleeving mode, the vertical sliding frame is fixedly connected to the inner wall of the top frame body, and a valve adjusting assembly for adjusting the horizontal height of the wind position blocking plate according to the wind power is arranged on the top frame body. Therefore, the problem of false alarm caused by water surface fluctuation is effectively solved, especially under the condition of large wind power, the valve adjusting assembly can ensure that alarm is triggered only when the water level really reaches or approaches the early warning critical point, false alarm caused by water surface fluctuation is reduced, and the early warning reliability of the system is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of flood season alarms, in particular to a flood season alarm device for a water conservancy project. Background Art

[0002] The flood season refers to the period when the water levels of rivers, lakes, reservoirs and other water bodies generally rise due to natural factors such as seasonal precipitation or snowmelt. In the field of water conservancy engineering, the arrival of the flood season is often accompanied by a large amount of precipitation, which causes the water levels of reservoirs, rivers and other water bodies to rise rapidly, increasing the risk of disasters such as floods and dam breaches. Timely and accurate acquisition of key data such as water level and rainfall is crucial to preventing floods.

[0003] Chinese patent (Announcement No.: CN113990040B), the scheme specifically includes an equipment body, the surface of the equipment body is fixedly connected to a base, the inner wall of the base is provided with a protective device, the front of the equipment body is fixedly installed with a sound window cover, the upper surface of the equipment body is fixedly connected to a fixed handle, the back of the equipment body is rotatably connected to a rotating handle, the inner wall of the rotating handle is provided with an anti-slip device, the protective device includes a protective spring, one end of the protective spring is fixedly connected to a slider, both sides of the slider are rotatably connected to connecting blocks, and the end of the connecting block away from the slider is rotatably connected to the protective block. The flood season alarm device for water conservancy projects is provided with a protective device. When the equipment body needs protection, the slider is pulled in the direction away from the equipment body, driving the connecting block to move and the protective block to be in close contact with the surface of the equipment body, and at the same time the protective spring is deformed, and the bolts on the slider are tightened and abut against the surface of the base.

[0004] Chinese patent (Announcement No.: CN115900877A), the scheme specifically includes a water conservancy dam and a water level detection pile fixedly installed at the bottom of the river on the right side of the water conservancy dam, the top of the water level detection pile is fixedly installed with a support box, the top of the support box is fixedly installed with a column, the top of the column is fixedly installed with an alarm, and the outer side of the alarm is provided with a rain cover. The present invention can not only monitor the river water level in real time through the water level scale on the water level detection pile; it can also rise with the rise of the river water level through the floating block and cooperate with the contact switch controller and the alarm, thereby greatly reducing the losses caused by flood disasters during the flood season; it can also avoid the disadvantages of the need for sensors and other components to work continuously to monitor the water level, thereby resulting in the need for continuous consumption of electrical energy; at the same time, it can also enable the contact switch controller to have good buffering performance during use, further ensuring better monitoring effect.

[0005] The above patent (publication number: CN113990040B) has the limitation of being unable to realize autonomous early warning according to the rising water level of the river in actual application, and it is difficult to meet the needs of automated flood control of water conservancy projects. Although the patent with publication number CN115900877A realizes the automatic early warning function, it is greatly affected by water surface fluctuations in scenes such as rivers or water conservancy dams, especially when there are strong winds or flow rate changes, the water level line will fluctuate significantly. Due to this fluctuation, false alarms may be caused when the water level has not reached the warning critical point, resulting in frequent alarms of the system, thereby affecting the reliability and effectiveness of the early warning. Therefore, the existing technology has certain room for improvement in dealing with complex water environments, especially in dynamic water level monitoring and accurate alarms. Furthermore, a flood season alarm device for water conservancy projects is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a flood season alarm device for water conservancy projects, which has the advantages of reducing false alarms caused by water level fluctuations and ensuring the warning reliability of the system, and solves the problem that water level fluctuations may cause false alarms when the water level has not reached the warning critical point.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a flood season alarm device for a water conservancy project, comprising a vertical pole and a top frame body arranged thereon, the top frame body being provided with an audible and visual alarm for alarming and a storage battery for providing electric energy to the audible and visual alarm, the vertical pole being provided with an alarm structure for triggering a multi-level alarm of the audible and visual alarm according to the water level;

[0008] The warning structure comprises a floating plate slidably sleeved on the vertical pole, a vertical sliding frame is arranged above the floating plate, the vertical sliding frame is fixedly connected to the inner wall of the top frame, a co-position seat freely moving in the vertical direction is arranged on the central hinge block, a connecting rod is arranged on the co-position seat for fixed axis rotation, and a U-shaped extension seat is arranged on the end of the connecting rod away from the co-position seat for fixed axis rotation;

[0009] A wind barrier plate is provided above the U-shaped extension seat, and a vertical slide frame is provided with a vertical slide groove for slidingly connecting the wind barrier plate and the same seat in the vertical direction, a single-link No. 1 copper sheet is fixedly connected to the U-shaped extension seat, and a single-link No. 2 copper sheet is fixedly connected to the wind barrier plate corresponding to the position of the single-link No. 1 copper sheet, and both the single-link No. 1 copper sheet and the single-link No. 2 copper sheet are electrically connected in series with the battery and the sound and light alarm, and a regulating valve assembly for adjusting the horizontal height of the wind barrier plate according to the wind force is provided on the top frame;

[0010] The U-shaped extension seat is fixedly connected with a lateral plate, a side of the lateral plate facing the vertical pole is fixedly connected with a double movable copper sheet, and the vertical pole is fixedly connected with a double positioning copper sheet corresponding to the position of the double movable copper sheet, and both the double positioning copper sheet and the double movable copper sheet are electrically connected in series with the battery and the sound and light alarm;

[0011] The vertical pole is provided with a slow-down component to prevent the fluctuation of the water level from triggering the sound and light alarm.

[0012] Preferably, the double movable copper plate and the double positioning copper plate form a first-stage trigger circuit that is electrically connected to the sound and light alarm, and the single-link No. 1 copper plate and the single-link No. 2 copper plate form a tail-stage trigger circuit that is electrically connected to the sound and light alarm, and the first-stage trigger circuit and the tail-stage trigger circuit are arranged in parallel.

[0013] Preferably, the first-stage trigger circuit and the tail-stage trigger circuit are respectively electrically connected in series with fixed resistors of different resistance values.

[0014] Preferably, the regulating valve assembly comprises a swing cylinder which is rotated on the top frame body with a fixed axis, a swing pin is fixedly connected to the side of the wind resistance plate facing the swing cylinder, and a spiral groove for sliding connection of the swing pin is provided on the swing cylinder;

[0015] A wind wheel is coaxially fixed on the positioning cylinder.

[0016] Preferably, the deceleration assembly comprises a lower sleeve lifting seat and an upper sleeve lifting seat which are slidably sleeved on the vertical pole, and a freely swinging lower swing rod and an upper swing rod are arranged between the lower sleeve lifting seat and the upper sleeve lifting seat, the lower swing rod is fixedly rotated on the lower sleeve lifting seat, and the upper swing rod is fixedly rotated on the upper sleeve lifting seat;

[0017] The vertical rod is provided with a central hinge block, one end of the lower swing rod away from the lower sleeve lifting seat is fixedly rotated on the central hinge block, and one end of the upper swing rod away from the upper sleeve lifting seat is fixedly rotated on the central hinge block.

[0018] Preferably, the central hinge block is fixedly connected to a side of the vertical pole, a clamping plate is fixedly connected to the side extension block, a vertical groove for the clamping plate to be slidably connected is provided on the vertical pole, and the vertical groove includes a narrow groove portion integrally formed and for the side extension block to be slidably connected;

[0019] The side of the positioning plate facing the upper swing rod and the lower swing rod is fixedly connected with a stop block, and the top frame body is provided with a limit assembly for limiting the lifting movement of the upper sleeve lifting seat.

[0020] Preferably, the limiting assembly includes an L-shaped top plate fixedly connected to the upper sleeve lifting seat, the L-shaped top plate is in abutment connection with the same seat, a side of the upper sleeve lifting seat away from the L-shaped top plate is fixedly connected to a triangular seat, an orienting frame is fixedly connected to the top frame body, and the orienting frame is provided with a cone angle block that is in sliding contact with the triangular seat.

[0021] Preferably, the directional frame is provided with a receiving groove for horizontally sliding connection of the cone angle block, a yield spring is arranged in the receiving groove, and two ends of the yield spring are respectively fixedly connected to the cone angle block and the directional frame.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention can adaptively adjust the horizontal height of the wind resistance plate according to the wind force by setting a regulating valve assembly, thereby effectively coping with the problem of false alarms caused by water surface fluctuations. Especially in the case of strong wind, the regulating valve assembly can ensure that the alarm is triggered only when the water level line actually reaches or approaches the warning critical point, thereby reducing false alarms caused by water surface fluctuations and ensuring the warning reliability of the system.

[0024] 2. The present invention realizes primary and secondary warnings through sound and light alarms. Combined with the structure of wind barrier plates and floating plates, it can provide accurate warnings according to changes in water levels. The sound level of the sound and light alarms is gradually enhanced, making the transmission of warning information clearer, facilitating relevant personnel to take measures in a timely manner, and significantly improving the efficiency of flood prevention work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal structure of the top frame of the present invention;

[0027] Figure 3 This is a schematic diagram of the components where the upper sleeve lifting seat of the present invention is located;

[0028] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle;

[0030] Figure 6 For the present invention Figure 1 Enlarged view of point C in the middle;

[0031] Figure 7 This is a schematic diagram of the components where the cone angle block of the present invention is located;

[0032] Figure 8 This is a schematic diagram of the components where the double movable copper sheet of the present invention is located;

[0033] Fig. 9 This is a schematic diagram of the components where the U-shaped extension seat of the present invention is located;

[0034] Fig.10 This is a schematic diagram of the location of the single-link No. 2 copper sheet of the present invention;

[0035] Fig.11 It is a schematic diagram of the circuit where the sound and light alarm of the present invention is located.

[0036] In the figure: 1, vertical pole; 2, floating plate; 3, top frame; 4, sound and light alarm; 5, lower sleeve lifting seat; 6, lower swing rod; 7, upper swing rod; 8, central hinge block; 9, lateral extension block; 10, positioning plate; 11, vertical groove; 111, narrow groove; 12, upper sleeve lifting seat; 13, L-shaped top plate; 14, directional frame; 15, yielding spring; 16, cone angle block; 17, triangular seat; 18, vertical sliding frame; 19, same position seat; 20, U-shaped extension seat; 21, lateral plate; 22, connecting rod; 23, single-link No. 1 copper sheet; 24, wind resistance plate; 25, single-link No. 2 copper sheet; 26, double-link movable copper sheet; 27, double-link positioning copper sheet; 28, swing pin; 29, swing cylinder; 30, spiral groove; 31, wind wheel; 32, stop block. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figures 1 to 11 The present invention provides a technical solution: a flood season alarm device for a water conservancy project, comprising a vertical pole 1 and a top frame 3 arranged thereon, the top frame 3 is provided with an audible and visual alarm 4 for alarming and a storage battery for providing electric energy to the audible and visual alarm 4, the vertical pole 1 is provided with an alarm structure for triggering a multi-level alarm of the audible and visual alarm 4 according to the water level;

[0039] The warning structure includes a floating plate 2 slidably mounted on the vertical pole 1, a vertical sliding frame 18 is arranged above the floating plate 2, the vertical sliding frame 18 is fixedly connected to the inner wall of the top frame 3, a center hinge block 8 is provided with a seat 19 that can move freely in the vertical direction, a connecting rod 22 is arranged on the seat 19 to rotate on a fixed axis, and a U-shaped extension seat 20 is arranged on the end of the connecting rod 22 away from the seat 19 to rotate on a fixed axis;

[0040] A wind barrier plate 24 is provided above the U-shaped extension seat 20, and a vertical slide slot for slidingly connecting the wind barrier plate 24 and the same position seat 19 in the vertical direction is provided on the vertical sliding frame 18, a single-link No. 1 copper sheet 23 is fixedly connected to the U-shaped extension seat 20, and a single-link No. 2 copper sheet 25 is fixedly connected to the wind barrier plate 24 corresponding to the position of the single-link No. 1 copper sheet 23, and both the single-link No. 1 copper sheet 23 and the single-link No. 2 copper sheet 25 are electrically connected in series with the battery and the sound and light alarm 4, and a regulating valve assembly for adjusting the horizontal height of the wind barrier plate 24 according to the wind force is provided on the top frame 3;

[0041] The U-shaped extension seat 20 is fixedly connected with a lateral plate 21, and a double movable copper sheet 26 is fixedly connected to the side of the lateral plate 21 facing the vertical pole 1. A double positioning copper sheet 27 is fixedly connected to the vertical pole 1 at the position corresponding to the double movable copper sheet 26. Both the double positioning copper sheet 27 and the double movable copper sheet 26 are electrically connected in series with the battery and the sound and light alarm 4.

[0042] The vertical pole 1 is provided with a slow-down component to prevent the water level fluctuation from triggering the sound and light alarm 4 to alarm.

[0043] like Figure 1 , Figure 2 , Figure 6 , Figure 8 and Fig.11 As shown, in the initial state, the same position seat 19 is at the bottom of the vertical slide under the action of gravity, and its double movable copper sheet 26 is not in contact with the double positioning copper sheet 27. When the water level of the river rises, the same position seat 19 moves upward with the rising water level, thereby driving the U-shaped extension seat 20 arranged thereon to move upward synchronously.

[0044] At the same time, the U-shaped extension seat 20 drives the double movable copper plate 26 to move upward through the side plate 21. As the U-shaped extension seat 20 moves upward, the double movable copper plate 26 contacts the double positioning copper plate 27, thereby making the line where the sound and light alarm 4 is located unblocked, so as to perform a primary warning by activating the sound and light alarm 4, and as the U-shaped extension seat 20 continues to move upward until the U-shaped extension seat 20 on it conflicts with the wind resistance plate 24, at this time, the U-shaped extension seat 20 cannot continue to move upward due to the restriction of the wind resistance plate 24.

[0045] Therefore, when the subsequent same-position seat 19 moves upward, it can drive the connecting rod 22 to deflect, so as to drive the single-link No. 1 copper sheet 23 to move toward the single-link No. 2 copper sheet 25, so that the single-link No. 1 copper sheet 23 and the single-link No. 2 copper sheet 25 are in contact with each other, and when the single-link No. 1 copper sheet 23 moves horizontally, the single-link No. 1 copper sheet 23 drives the side plate 21 and the double-link movable copper sheet 26 to move synchronously, so as to drive the double-link movable copper sheet 26 to separate from the double-link positioning copper sheet 27. At the same time, when the single-link No. 1 copper sheet 23 is in contact with the single-link No. 2 copper sheet 25, the line where the sound and light alarm 4 is located is still in a smooth state, and a second-level warning is performed through the operation of the sound and light alarm 4 at this time.

[0046] It should be noted that only after the single-link No. 1 copper sheet 23 collides with the wind barrier plate 24, its U-shaped extension seat 20 will be restricted by the wind barrier plate 24 and will not rise synchronously with the same position seat 19. Among them, the main factor affecting the fluctuation of the water level line of the river channel is the wind factor. Therefore, when the wind force above the river channel is strong, the fluctuation amplitude of the water level line is large. Therefore, the same position seat 19 may trigger the secondary warning due to the fluctuation of the water level line at this time, and then adjust the horizontal height of the wind barrier plate 24 according to the wind force by setting a regulating valve assembly on the top frame 3. That is, when the wind force is greater, the horizontal height of the wind barrier plate 24 is higher, which means that the fluctuation amplitude of the water level line is large, so as to drive the same position seat 19 to a higher horizontal position to trigger the secondary warning, thereby avoiding the significant fluctuation of the water level line causing false alarm when the water level has not reached the warning critical point, resulting in frequent alarms of the system, thereby ensuring the reliability and effectiveness of the warning.

[0047] Among them, a torsion spring is provided between the connecting rod 22 and the isostatic seat 19 to drive the U-shaped extension seat 20 to return to its initial position. In the initial state, the single-link No. 1 copper sheet 23 on the U-shaped extension seat 20 will not contact the single-link No. 2 copper sheet 25 as the isostatic seat 19 rises. The torsion spring is an existing device and a technical means well known to those skilled in the art, so it is not shown in the figure.

[0048] In order to ensure that the sound and light alarm 4 can give an early warning at different critical water level heights, the double movable copper plate 26 and the double positioning copper plate 27 form a first-stage trigger circuit that is electrically connected to the sound and light alarm 4, and the single-link No. 1 copper plate 23 and the single-link No. 2 copper plate 25 form a tail-stage trigger circuit that is electrically connected to the sound and light alarm 4. The first-stage trigger circuit and the tail-stage trigger circuit are arranged in parallel, and the first-stage trigger circuit and the tail-stage trigger circuit are respectively electrically connected in series with fixed resistors with different resistance values.

[0049] like Fig.11 As shown, during the primary warning, the double movable copper sheet 26 moves upward and contacts the double positioning copper sheet 27, so that the double movable copper sheet 26, the double positioning copper sheet 27, the sound and light alarm 4 and the fixed resistor where its circuit is located form a smooth series circuit, thereby making the sound and light alarm 4 operate and perform a primary warning. As the water level continues to rise, the same position seat 19 continues to move upward until the U-shaped extension seat 20 collides with the wind resistance plate 24, and the double movable copper sheet 26 breaks away from the double positioning copper sheet 27, and makes the single-link No. 1 copper sheet 23 contact with the single-link No. 2 copper sheet 25. At this time, the single-link No. 1 copper sheet 23, the single-link No. 2 copper sheet 25, the sound and light alarm 4 and another fixed resistor where its circuit is located form a smooth circuit to drive the sound and light alarm 4 to operate again and perform a secondary warning.

[0050] At the same time, in actual use, by adjusting the resistance values ​​of the two fixed resistors, the alarm sound of the sound and light alarm 4 in the primary warning and secondary warning will increase step by step, and the triggering of the secondary warning is related to the external wind factor, that is, it can be adaptively adjusted according to the wind force to avoid mistakenly triggering the secondary warning when the water level fluctuates greatly. In addition, in actual use, a photovoltaic panel can be fixed on the top frame 3 to provide power to the battery through the photovoltaic panel, thereby achieving a continuous supply of power.

[0051] In one of the more preferred embodiments, the regulating valve assembly includes a positioning cylinder 29 which rotates on a fixed axis on the top frame body 3, a positioning pin 28 is fixedly connected to the side of the wind resistance plate 24 facing the positioning cylinder 29, a spiral groove 30 is provided on the positioning cylinder 29 for the sliding connection of the positioning pin 28, and a wind wheel 31 is coaxially fixed on the positioning cylinder 29.

[0052] like Figure 1 , Figure 2 and Fig.10 As shown, the top frame 3 is provided with a torsion spring for driving the positioning cylinder 29 and the wind wheel 31 to return to their initial positions. The torsion spring is an existing device and a technical means well known to those skilled in the art, so it is not shown in the figure. When the wind force is strong, it can blow the wind wheel 31 to drive the wind wheel 31 to rotate a certain angle, thereby driving the positioning cylinder 29 and the wind wheel 31 to rotate synchronously.

[0053] At the same time, a spiral groove 30 is opened on the positioning cylinder 29, and a positioning pin 28 is slidably connected on the spiral groove 30, and the positioning pin 28 is fixedly connected to the single-link No. 2 copper plate 25, and the single-link No. 2 copper plate 25 is slidably connected to the vertical slide frame 18 through a vertical slide groove. Under the restriction of the vertical slide groove, the single-link No. 2 copper plate 25 can only move in the vertical direction. Therefore, when the positioning cylinder 29 rotates, the horizontal height of the positioning pin 28 and the single-link No. 2 copper plate 25 can be adjusted through the spiral groove 30, thereby changing the movement distance required for the same-position seat 19 to rise when the second-level warning is triggered.

[0054] Specifically, when the wind is strong above a river or water area, the amplitude of the water surface fluctuation will also increase accordingly, which may cause a false alarm to be triggered. The regulating valve assembly can adapt to the different amplitudes of water level fluctuations by adjusting the horizontal height of the wind barrier plate 24 to ensure that the secondary alarm is triggered only when the water level line actually reaches or approaches the warning critical point, thereby avoiding false alarms caused by water surface fluctuations.

[0055] On the basis of the embodiment of the regulating valve assembly, the said slow-release assembly comprises a lower sleeve lifting seat 5 and an upper sleeve lifting seat 12 which are slidingly sleeved on the vertical rod 1, and a freely swinging lower swing rod 6 and an upper swing rod 7 are arranged between the lower sleeve lifting seat 5 and the upper sleeve lifting seat 12, the lower swing rod 6 is fixedly rotated on the lower sleeve lifting seat 5, and the upper swing rod 7 is fixedly rotated on the upper sleeve lifting seat 12;

[0056] The vertical rod 1 is provided with a central hinge block 8, and the end of the lower swing rod 6 away from the lower sleeve lifting seat 5 is fixedly rotated on the central hinge block 8, and the end of the upper swing rod 7 away from the upper sleeve lifting seat 12 is fixedly rotated on the central hinge block 8.

[0057] The central hinge block 8 is fixedly connected to a side of the vertical pole 1 with a side extension block 9, and a positioning plate 10 is fixedly connected to the side extension block 9. The vertical pole 1 is provided with a vertical groove 11 for the positioning plate 10 to be slidably connected. The vertical groove 11 includes an integrally formed narrow groove portion 111 for the side extension block 9 to be slidably connected.

[0058] The side of the positioning plate 10 facing the upper swing rod 7 and the lower swing rod 6 is fixedly connected with a stop block 32 , and the top frame body 3 is provided with a limit assembly for limiting the lifting movement of the upper sleeve lifting seat 12 .

[0059] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the floating plate 2 slidably mounted on the vertical pole 1 floats on the water level under the action of buoyancy. As the water level rises, the floating plate 2 contacts the lower sleeve lifting seat 5 below, and subsequently drives the lower sleeve lifting seat 5 to move upward as the water level rises. In the initial state, the side extension block 9 arranged on the central hinge block 8 is slidably connected to the narrow groove portion 111. Therefore, when the lower sleeve lifting seat 5 initially moves upward, the horizontal position of the central hinge block 8 does not change.

[0060] However, as the lower sleeve lifting seat 5 continues to rise with the water level, the side extension block 9 corresponds to the position of the vertical groove 11. Under the restriction of the limit assembly, the upper sleeve lifting seat 12 encounters resistance and is difficult to continue to move upward. Therefore, the subsequent lower sleeve lifting seat 5 will drive the angle between the lower swing rod 6 and the upper swing rod 7 to change when it rises, that is, the angle between the two will gradually become smaller, until the lower swing rod 6 and the upper swing rod 7 are blocked by the stop block 32 and are at the minimum angle. Only then will the lower sleeve lifting seat 5 drive the upper sleeve lifting seat 12 to release the restriction of the limit assembly as the water level rises, and then drive the L-shaped top plate 13 set on the upper sleeve lifting seat 12 to move upward, and push the same position seat 19 to move synchronously through the L-shaped top plate 13.

[0061] It should be noted that when the isotope 19 is pushed upward by the L-shaped top plate 13, it means that the actual height of the water level is close to the primary warning limit, that is, the isotope 19 can make the first-level trigger circuit unblocked for primary warning after rising a certain small distance.

[0062] Among them, by setting freely swinging lower swing rod 6 and upper swing rod 7, it is used to deal with the water surface fluctuation phenomenon when the water level line has not reached the warning limit. Under the limitation of the limit component, the water surface fluctuation of the water level line or the water level rise will only drive the lower swing rod 6 and the upper swing rod 7 to deflect, but will not drive the L-shaped top plate 13 to rise and fall synchronously with the water level line.

[0063] Furthermore, only when the height of the actual water level drives the angles of the lower swing rod 6 and the upper swing rod 7 to the minimum value, can the upper sleeve lifting seat 12 be driven to release the restriction of the limit assembly, thereby prompting the L-shaped top plate 13 on the upper sleeve lifting seat 12 to push the same position seat 19 to rise and pass through the limit assembly.

[0064] Further, the limiting assembly includes an L-shaped top plate 13 fixedly connected to the upper sleeve lifting seat 12, the L-shaped top plate 13 is in abutment with the same seat 19, a side of the upper sleeve lifting seat 12 away from the L-shaped top plate 13 is fixedly connected to a triangular seat 17, an orientation frame 14 is fixedly connected to the top frame body 3, and a cone angle block 16 is provided on the orientation frame 14 for sliding contact with the triangular seat 17;

[0065] The orientation frame 14 is provided with a receiving groove for the cone angle block 16 to be horizontally slidably connected, and a yield spring 15 is arranged in the receiving groove, and the two ends of the yield spring 15 are respectively fixedly connected to the cone angle block 16 and the orientation frame 14.

[0066] like Figure 2 , Figure 3 and Figure 7 As shown, when the triangular seat 17 fixed on the upper sleeve lifting seat 12 moves upward and collides with the cone angle block 16, the triangular seat 17 is subjected to the resistance from the cone angle block 16 and is difficult to move upward. Subsequently, as the water level rises, the cone angle block 16 and the upper swing rod 7 are deflected to drive the angle between the two to be at the minimum value. If the water level continues to rise, the floating plate 2 pushes the lower sleeve lifting seat 5 and drives the L-shaped top plate 13 to move upward, so as to drive the cone angle block 16 to retract into the directional frame 14, and cause the yield spring 15 to undergo compressive elastic deformation. After the triangular seat 17 moves to the top of the cone angle block 16, the yield spring 15 can restore the elastic deformation.

[0067] It should be noted that, in actual use, the upper sleeve lifting seat 12, the lower sleeve lifting seat 5 and the components thereon have a certain mass. When the triangular seat 17 moves downward from above the cone block 16 under the action of gravity, it can drive the yield spring 15 to undergo compression deformation and drive the upper sleeve lifting seat 12 and the lower sleeve lifting seat 5 to return to their initial positions when the water level is low, thereby ensuring the continuous use of the device.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flood season alarm device for a water conservancy project, comprising a vertical pole (1) and a top frame (3) arranged thereon, the top frame (3) being provided with an audible and visual alarm (4) for alarming and a battery for providing electric energy to the audible and visual alarm (4), characterized in that: The vertical pole (1) is provided with a warning structure for triggering a sound and light alarm (4) to generate a multi-level alarm according to the water level; The warning structure comprises a floating plate (2) slidably mounted on the vertical pole (1), a vertical sliding frame (18) is arranged above the floating plate (2), the vertical sliding frame (18) is fixedly connected to the inner wall of the top frame (3), a central hinge block (8) is provided with a seat (19) which can freely move in the vertical direction, a connecting rod (22) is arranged on the seat (19) for fixed axis rotation, and a U-shaped extension seat (20) is arranged on one end of the connecting rod (22) away from the seat (19) for fixed axis rotation; A wind barrier plate (24) is provided above the U-shaped extension seat (20), and a vertical slide groove is provided on the vertical sliding frame (18) for slidingly connecting the wind barrier plate (24) and the corresponding seat (19) in the vertical direction. A single-link No. 1 copper sheet (23) is fixedly connected to the U-shaped extension seat (20), and a single-link No. 2 copper sheet (25) is fixedly connected to the wind barrier plate (24) at a position corresponding to the single-link No. 1 copper sheet (23). Both the single-link No. 1 copper sheet (23) and the single-link No. 2 copper sheet (25) are electrically connected in series with the battery and the sound and light alarm (4), and a regulating valve assembly for adjusting the horizontal height of the wind barrier plate (24) according to the wind force is provided on the top frame (3); The U-shaped extension seat (20) is fixedly connected with a lateral plate (21), a side of the lateral plate (21) facing the vertical pole (1) is fixedly connected with a double movable copper sheet (26), and a double positioning copper sheet (27) is fixedly connected to the vertical pole (1) at a position corresponding to the double movable copper sheet (26), and both the double positioning copper sheet (27) and the double movable copper sheet (26) are electrically connected in series with the storage battery and the sound and light alarm (4); The vertical pole (1) is provided with a slow-down component for preventing the fluctuation of the water level from triggering the sound and light alarm (4) to sound an alarm.

2. A flood season alarm device for water conservancy projects according to claim 1, characterized in that: The double movable copper sheet (26) and the double positioning copper sheet (27) form a first-stage trigger circuit electrically connected to the sound and light alarm (4); the single-link No. 1 copper sheet (23) and the single-link No. 2 copper sheet (25) form a tail-stage trigger circuit electrically connected to the sound and light alarm (4); the first-stage trigger circuit and the tail-stage trigger circuit are arranged in parallel.

3. A flood season alarm device for water conservancy projects according to claim 2, characterized in that: The first-stage trigger circuit and the last-stage trigger circuit are respectively electrically connected in series with fixed resistors with different resistance values.

4. A flood season alarm device for water conservancy projects according to claim 3, characterized in that: The regulating valve assembly comprises a swing cylinder (29) which is fixedly rotated on the top frame (3); a swing pin (28) is fixedly connected to the side of the wind resistance plate (24) facing the swing cylinder (29); and a spiral groove (30) is provided on the swing cylinder (29) for the swing pin (28) to be slidably connected. A wind wheel (31) is coaxially fixed on the positioning cylinder (29).

5. A flood season alarm device for water conservancy projects according to claim 4, characterized in that: The deceleration component comprises a lower sleeve lifting seat (5) and an upper sleeve lifting seat (12) which are slidably sleeved on the vertical rod (1); a freely swinging lower swing rod (6) and an upper swing rod (7) are arranged between the lower sleeve lifting seat (5) and the upper sleeve lifting seat (12); the lower swing rod (6) rotates on the lower sleeve lifting seat (5) with a fixed axis, and the upper swing rod (7) rotates on the upper sleeve lifting seat (12) with a fixed axis; The vertical rod (1) is provided with a central hinge block (8), one end of the lower swing rod (6) away from the lower sleeve lifting seat (5) is fixedly rotated on the central hinge block (8), and one end of the upper swing rod (7) away from the upper sleeve lifting seat (12) is fixedly rotated on the central hinge block (8).

6. A flood season alarm device for water conservancy projects according to claim 5, characterized in that: The central hinge block (8) is fixedly connected to a side extension block (9) facing the vertical pole (1), a positioning plate (10) is fixedly connected to the side extension block (9), a vertical groove (11) for sliding connection of the positioning plate (10) is provided on the vertical pole (1), and the vertical groove (11) includes an integrally formed narrow groove portion (111) for sliding connection of the side extension block (9); The side of the positioning plate (10) facing the upper swing rod (7) and the lower swing rod (6) is fixedly connected with a stop block (32), and the top frame (3) is provided with a limit assembly for limiting the lifting movement of the upper sleeve lifting seat (12).

7. A flood season alarm device for water conservancy projects according to claim 6, characterized in that: The limiting assembly comprises an L-shaped top plate (13) fixedly connected to an upper sleeve lifting seat (12), the L-shaped top plate (13) and a corresponding seat (19) being in abutting connection with each other, a triangular seat (17) being fixedly connected to a side of the upper sleeve lifting seat (12) away from the L-shaped top plate (13), an orientation frame (14) being fixedly connected to the top frame body (3), and a cone angle block (16) being in sliding contact with the triangular seat (17) being provided on the orientation frame (14).

8. A flood season alarm device for water conservancy projects according to claim 7, characterized in that: The orientation frame (14) is provided with a receiving groove for horizontally sliding connection of the cone angle block (16), a yield spring (15) is arranged in the receiving groove, and two ends of the yield spring (15) are respectively fixedly connected to the cone angle block (16) and the orientation frame (14).

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