River flood early warning device

Abstract

The invention discloses a river flood early warning device, which relates to the technical field of flood prevention early warning equipment and comprises an L-shaped mounting plate, a waterproof box, a horizontal mounting plate, a mounting frame, a guardrail, a vertical mounting plate, a warning lamp, a flow velocity monitoring fan, a water level monitoring mechanism, a transmission mechanism and an alarm mechanism. The early warning device is driven by a second sliding mechanism to work, the two flow velocity monitoring fans are driven by a first sliding mechanism to slide, the vertical mounting plate is driven by the second sliding mechanism to slide, the second sliding mechanism is driven by a transmission mechanism to work, and the multiple protection fences are driven by a third sliding mechanism to slide. The water level monitoring mechanism can carry out monitoring and early warning on the river water level in real time, the alarming mechanism can effectively carry out monitoring and alarming on the water flow speed, the guardrail can slide in a reciprocating mode under driving of the third sliding mechanism, and when the water level rises, the guardrail is lifted up, and the protection effect can be effectively achieved.

Description

Technical Field

[0001] The invention relates to the technical field of flood prevention and early warning equipment, and in particular to a river flood early warning device. Background Art

[0002] At present, the commonly known means of flood prevention is to increase the flood discharge capacity. Common measures include building river embankments, regulating river channels, etc. Before the flood comes, using flood warning devices to detect the flood is also an indispensable defense measure; Existing flood warning methods usually monitor the water level of the river. The monitoring method is usually water level monitoring or flow monitoring. When the water level monitor detects that the water level has reached the warning line, the alarm will start to sound. Due to the high installation cost, this warning method usually only places the warning device in upstream areas such as reservoirs and dams. The upstream monitoring results can provide more response time for downstream residential areas. However, due to the lack of early warning measures downstream, when downstream residents receive the early warning information sent from upstream, they also need a certain amount of evacuation time. If the flood is too large and too fast, the downstream area also lacks certain protective measures.

[0003] In order to solve the above problems, a river flood warning device for downstream is proposed. Summary of the invention

[0004] In view of the above problems, the present invention provides a river flood warning device, which solves the problem that the traditional warning method usually only places the warning device in the upstream area such as the reservoir dam due to the high installation cost. The upstream monitoring results can provide more reaction time for the downstream residential areas. However, due to the lack of early warning measures downstream, when the downstream residents receive the early warning information sent from the upstream, they also need a certain amount of evacuation time. If the flood is too large and too fast, the downstream area also lacks certain protective measures.

[0005] The technical solution adopted by the present invention is: comprising an L-shaped mounting plate, a waterproof box, a horizontal mounting plate, a mounting frame, a guardrail, a vertical mounting plate, a warning light, a flow rate monitoring fan, a water level monitoring mechanism, a transmission mechanism, an alarm mechanism, a first sliding mechanism, a second sliding mechanism, and a third sliding mechanism; The two sides of the waterproof box are respectively fixed with the horizontal plates of the L-shaped mounting plate, and the ends of the horizontal plates of the two L-shaped mounting plates are respectively fixed on the two side walls of the waterproof box; The outer walls of the vertical plates of the two L-shaped mounting plates are respectively fixedly connected to the river bank walls to be installed; A first gap is left between the bottom wall of the waterproof box and the upper end of the riverbed; A horizontal mounting plate is fixedly provided on the lower side of the front wall of the waterproof box; Installation frames are fixedly provided on both sides of the upper end of the horizontal installation plate, and a second gap is left between the two installation frames and the river bank walls to be installed on both sides; The outer sides of the two installation frames are both provided with a same water level monitoring mechanism; A transmission mechanism is movably disposed at the upper end of the horizontal mounting plate, and the transmission mechanism is movably disposed between the two mounting frames; The transmission mechanism is driven to work by the water level monitoring mechanism; An alarm mechanism is provided in the waterproof box, and the alarm mechanism is driven to work by the second sliding mechanism; Flow rate monitoring fans are movably arranged on the outer sides of the two installation frames, respectively. The two flow rate monitoring fans are driven to slide by a first sliding mechanism, and the first sliding mechanism is driven to work by the transmission mechanism; The upper end of the waterproof box is detachably provided with a sealing cover, and a vertical mounting plate is movably provided above the sealing cover. The vertical mounting plate is driven to slide by a second sliding mechanism, and the second sliding mechanism is driven to work by the transmission mechanism; A plurality of warning lights are provided on the vertical mounting plate, and the plurality of warning lights are electrically connected to the two flow rate monitoring fans respectively; A plurality of protective rails are movably provided on the inner walls of the horizontal plate and the vertical plate of the two L-shaped mounting plates, and the plurality of protective rails are driven to slide by a third sliding mechanism, and the third sliding mechanism is driven to work by the second sliding mechanism.

[0006] Further, the water level monitoring mechanism comprises a first connecting rod, a floating body, and a main shaft; A main shaft is rotatably provided on the side wall of the horizontal mounting plate; The middle part of the first connecting rod is fixedly arranged at both ends of the main shaft; The front ends of the two first connecting rods are respectively provided with floating bodies, and the two floating bodies are respectively arranged in the two second gaps; The main shaft drives the transmission mechanism to work by rotating.

[0007] Further, the transmission mechanism comprises a spur gear, a rack plate, a transmission plate, a first rectangular block, and a baffle; The front end of the horizontal mounting plate is provided with a first mounting groove, and the main shaft is rotatably arranged in the first mounting groove; A spur gear is fixedly sleeved on the main shaft in the first mounting groove; Baffles are respectively provided in the two installation frames; The front sides of the two baffles are respectively detachably contacted with first rectangular clamping blocks, and the two first rectangular clamping blocks are respectively slidably clamped in the two installation frames; A transmission plate is fixedly disposed between the two first rectangular blocks; The transmission plate is slidably arranged on the upper end of the horizontal mounting plate; The lower end of the transmission plate is provided with a second mounting groove that cooperates with the first mounting groove; A rack plate is fixedly disposed in the second mounting groove; The spur gear is meshingly connected with the rack plate; The transmission plate drives the first sliding mechanism, the second sliding mechanism and the alarm mechanism to work respectively by sliding.

[0008] Furthermore, the first sliding mechanism comprises a T-shaped sliding block, a flip plate, a push rod, and an expansion mounting plate; A T-shaped slide groove is provided on the front wall of the transmission plate; A horizontal plate with T-shaped sliders is slidably disposed on both sides of the T-shaped slide groove; The front ends of the two installation frames are respectively rotatably provided with the first ends of the flip plates, and the middle parts of the second ends of the two flip plates are respectively provided with grooves; A first connecting shaft is respectively arranged in the two grooves; the vertical plates of the two T-shaped slide blocks are respectively rotatably connected to the two first connecting shafts; Push rods are respectively provided on the outer walls of the vertical plates of the two T-shaped sliding blocks; The outer ends of the two push rods are respectively provided with expansion mounting plates; The two flow rate monitoring fans are respectively rotatably arranged on the front walls of the two expansion mounting plates through the first rotating shaft; A plurality of water channels are arranged on the two expansion mounting plates.

[0009] Furthermore, the second sliding mechanism comprises a second rectangular block, a second connecting rod, a connecting rod, and a first sliding rod; The rear walls of the two first rectangular blocks are respectively provided with first ends of a plurality of connecting rods; The second ends of the plurality of connecting rods on one side slide through the baffles on the same side and are fixed with second rectangular blocks; The two second rectangular clamping blocks are respectively slidably disposed on the rear sides of the two baffles, and the two second rectangular clamping blocks are both slidably disposed in the two installation frames; A second connecting shaft is respectively provided on the lower side of the outer wall of the two second rectangular blocks, and the first end of the second connecting rod is rotatably sleeved on the two second connecting shafts; A plurality of first rectangular through holes are provided at equal intervals on the top walls of the transverse plates of the two L-shaped mounting plates, and first sliding rods are slidably provided in the plurality of rectangular through holes; A plurality of first rectangular through grooves cooperating with the first rectangular through holes are respectively provided on the inner walls of the transverse plates of the two L-shaped mounting plates; A first mounting frame is respectively provided on the front wall of the plurality of first sliding rods, and the plurality of first mounting frames are respectively slidably penetrated through the plurality of first rectangular through slots; The second ends of the two second connecting rods are rotatably disposed in the two first mounting frames close to the side walls of the waterproof box respectively; The top ends of the two first sliding bars close to the side wall of the waterproof box are movably disposed above the two first rectangular through holes matched therewith; The vertical mounting plate is fixedly arranged between the top ends of the two first sliding bars close to the side wall of the waterproof box; The two second rectangular blocks respectively drive the alarm mechanism to work by sliding; The two first mounting frames respectively drive the third sliding mechanism to work by sliding.

[0010] Furthermore, the alarm mechanism comprises a second slide bar, a positive electrode block, a negative electrode block, a wire, and a waterproof telescopic barrel; The first ends of the second sliding rods are respectively fixed on the rear walls of the two second rectangular blocks; The second ends of the two second sliding rods are respectively slidably penetrated through the rear side walls of the two installation frames; Second rectangular through holes are respectively provided on both sides of the front wall of the waterproof box, and the second ends of the two second sliding rods are respectively slidably disposed in the two second rectangular through holes; Second rectangular through grooves are respectively provided on the two inner side walls of the waterproof box, and the two second rectangular through grooves are respectively connected to the two second rectangular through holes; A positive electrode block is respectively arranged on the inner walls of the two second sliding bars, and the front walls of the two positive electrode blocks are respectively in detachable contact with the inner side of the front wall of the waterproof box; Negative electrode blocks are respectively arranged on both sides of the rear wall of the waterproof box, and the two positive electrode blocks are respectively in detachable contact with the two negative electrode blocks; One side of the two negative electrode blocks is electrically connected to a control board respectively, and the control board is electrically connected to the two flow rate monitoring fans through a plurality of first wires; The upper end of the sealing cover is fixed with a plurality of fixed ends of the waterproof telescopic barrels, and the fixed ends of the plurality of waterproof telescopic barrels are respectively connected to the sealing cover; The movable ends of the plurality of waterproof telescopic barrels are respectively fixedly connected to the lower ends of the vertical mounting plates; The control panel is electrically connected to the warning lights through a plurality of second wires, and the second wires are respectively penetrated through the waterproof telescopic barrels.

[0011] Further, the third sliding mechanism comprises a first linkage shaft, a second linkage shaft, and a shaft coupling; A plurality of second rectangular through holes are respectively provided on the upper ends of the vertical plates of the two L-shaped mounting plates, and a plurality of the protection rails are respectively slidably arranged in the plurality of the second rectangular through holes; A third rectangular through groove cooperating with the second rectangular through hole is respectively provided on the inner wall of the vertical plates of the two L-shaped mounting plates, and the third rectangular through groove is connected to the second rectangular through hole cooperating with the third rectangular through groove; A second mounting frame is respectively provided on the inner walls of the plurality of protection fences; A second linkage shaft is provided through a plurality of second mounting frames located on the same vertical plate of the L-shaped mounting frame; A same first linkage shaft is provided through a plurality of first mounting frames located on the same L-shaped mounting frame transverse plate; The first linkage shaft and the second linkage shaft located on the same side are fixedly connected via a shaft coupling; The outer sides of the plurality of protection fences are respectively slidably sleeved with expansion protection fences; A plurality of the expansion protection fences are respectively connected to the upper ends of the L-shaped mounting frames adjacent thereto through return springs.

[0012] Furthermore, several of the warning lights are respectively provided with alarms, and several of the alarms are electrically connected to the control panel through wires.

[0013] Advantages of the present invention: The water level detection mechanism of the present invention can detect and warn the river water level in real time, the alarm mechanism of the present invention can effectively monitor and alarm the water flow velocity, and the guardrail of the present invention can slide back and forth driven by the third sliding mechanism. When the water level rises, the guardrail is lifted to effectively play a protective role.

[0014] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the transmission mechanism of the present invention; Figure 3 It is a schematic diagram of the working principle of the transmission mechanism of the present invention; Figure 4 It is a schematic diagram of the overall structure of the alarm mechanism of the present invention; Figure 5 It is a side view of the overall structure of the present invention; Figure 6 It is a schematic diagram of the working principle of the first sliding mechanism of the present invention; Figure 7 It is a rear view of the overall structure of the present invention; Figure 8 The overall structure of the present invention is being attempted; Fig. 9 It is a partial top view of the present invention; Fig.10 It is a schematic diagram of the installation of the L-shaped mounting plate and the waterproof box of the present invention; Fig.11 It is a schematic diagram of the working principle of the water level monitoring mechanism of the present invention; Fig.12 It is a schematic diagram of the installation of the horizontal mounting plate and the mounting frame of the present invention; Fig.13 It is a schematic diagram of the alarm process of the present invention; Fig.14 It is a schematic diagram of the installation position of the present invention and the water flow direction; Fig.15 It is a schematic diagram of the working process of the present invention.

[0017] Reference numerals: 1 is a riverbed, 2 is a rack plate, 3 is a floating body, 4 is a first connecting rod, 5 is a flip plate, 6 is a transmission plate, 7 is a mounting frame, 8 is a second connecting rod, 10 is an L-shaped mounting frame, 11 is a first sliding rod, 12 is a vertical mounting plate, 13 is a protection fence, 14 is an extended protection fence, 15 is a waterproof box, 16 is a sealing cover, 17 is a connecting rod, 18 is a second rectangular block, 19 is a second sliding rod, 20 is a first rectangular block, 21 is a horizontal mounting plate, 22 is a spur gear, 23 is a T-shaped slider, 24 is a reset spring, 25 is an extended mounting plate, 26 is a flow rate monitoring fan, 27 is a push rod, 28 is a waterproof telescopic barrel, 29 is a second linkage shaft, 30 is a coupling, 31 is a main shaft, and 32 is a first linkage shaft; 101 is a river bank wall to be installed; 1201 is a warning light; 601 is a T-shaped slide groove, and 602 is a second installation groove; 701 is a baffle; 1001 is a first rectangular through slot, 1002 is a third rectangular through slot, 1003 is a second rectangular through hole, and 1004 is a rectangular through hole; 1101 is a first mounting frame; 1201 is a warning light; 1301 is a second mounting frame; 1501 is a second rectangular through groove, 1502 is a negative electrode block, and 1503 is a second rectangular through hole; 1901 is the positive electrode block; 2101 is the first installation slot. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] In the description of the invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0020] refer to Figures 1 to 15 , a river flood warning device, comprising an L-shaped mounting plate 10, a waterproof box 15, a horizontal mounting plate 21, a mounting frame 7, a guardrail 13, a vertical mounting plate 12, a warning light 1201, a flow rate monitoring fan 26, a water level monitoring mechanism, a transmission mechanism, an alarm mechanism, a first sliding mechanism, a second sliding mechanism, and a third sliding mechanism; The two sides of the waterproof box 15 are respectively fixed with the horizontal plates of the L-shaped mounting plate 10, and the ends of the horizontal plates of the two L-shaped mounting plates 10 are respectively fixed on the two side walls of the waterproof box 15. The waterproof box 15 can prevent external water from entering the box body. The L-shaped mounting plate 10 is used to fix the waterproof box 15; The vertical plate outer walls of the two L-shaped mounting plates 10 are respectively fixedly connected to the river bank wall 101 to be installed; A first gap is left between the bottom wall of the waterproof box 15 and the upper end of the riverbed 1, and its function is to facilitate water flow through the first gap; A horizontal mounting plate 21 is fixedly mounted on the lower side of the front wall of the waterproof box 15, and the horizontal mounting plate 21 is used to mount the transmission mechanism described later; The upper ends of the horizontal mounting plate 21 are respectively fixedly mounted with mounting frames 7, and a second gap is left between the two mounting frames 7 and the river bank walls 101 to be mounted on both sides, and the two mounting frames 7 are used to fix the moving track of the transmission mechanism; The same water level monitoring mechanism is installed on the outside of the two installation frames 7, and its function is to monitor the river water level in real time and provide feedback; A transmission mechanism is movably mounted on the upper end of the horizontal mounting plate 21, and the transmission mechanism is movably arranged between the two mounting frames 7; The transmission mechanism is driven by the water level monitoring mechanism to work, and the water level monitoring mechanism will drive the second sliding mechanism described later to work through the transmission mechanism during the working process; An alarm mechanism is installed in the waterproof box 15, and the alarm mechanism is driven to work by the second sliding mechanism; Flow rate monitoring fans 26 are movably installed on the outer sides of the two installation frames 7. The two flow rate monitoring fans 26 are driven to slide by the first sliding mechanism. The first sliding mechanism is driven to work by the transmission mechanism. When the water level of the river becomes high, the two flow rate monitoring fans 26 will slide outwards driven by the first sliding mechanism and start to rotate under the impact of the water flow. The greater the flow rate of the water flow, the faster the rotation speed of the flow rate monitoring fan 26. The alarm mechanism described later will play different levels of alarm effects according to the different rotation speeds of the flow rate monitoring fan 26. The upper end of the waterproof box 15 is detachably provided with a sealing cover 16, and a vertical mounting plate 12 is movably provided above the sealing cover 16. The vertical mounting plate 12 is driven to slide by a second sliding mechanism, and the second sliding mechanism is driven to work by a transmission mechanism. The sealing cover 16 is used to prevent water from entering the interior from the upper end of the waterproof box 15 and thus damaging the alarm device. A plurality of warning lights 1201 are installed on the vertical mounting plate 12, and the plurality of warning lights 1201 are electrically connected to the two flow rate monitoring fans 26 respectively; A plurality of protection rails 13 are movably mounted on the inner walls of the horizontal plate and the vertical plate of the two L-shaped mounting plates 10 , respectively. The plurality of protection rails 13 are driven to slide by the third sliding mechanism, and the third sliding mechanism is driven to work by the second sliding mechanism.

[0021] The water level monitoring mechanism comprises a first connecting rod 4, a floating body 3, and a main shaft 31; A main shaft 31 is rotatably installed on the side wall of the horizontal mounting plate 21; The middle part of the first connecting rod 4 is fixedly mounted on both ends of the main shaft 31; The front ends of the two first connecting rods 4 are respectively installed with floating bodies 3, and the two floating bodies 3 are respectively arranged in the two second gaps; The main shaft 31 drives the transmission mechanism to work by rotating. When the water gradually rises, the two floats 3 will slowly rise along with the water level line. During the process of the two floats 3 being lifted up, the two first connecting rods 4 connected to the two floats 3 will start to rotate upward. During the process of the two first connecting rods 4 being lifted up, the two first connecting rods 4 will start to rotate around their rotation centers. Since the main shaft 31 fixes the rotation centers of the two first connecting rods 4 together, the main shaft 31 starts to rotate synchronously with the two first connecting rods 4. During the rotation, the main shaft 31 will drive the alarm mechanism through the transmission mechanism, thereby realizing water level monitoring and early warning.

[0022] The transmission mechanism comprises a spur gear 22, a rack plate 2, a transmission plate 6, a first rectangular block 20, and a baffle 701; A first mounting groove 2101 is provided at the front end of the horizontal mounting plate 21, and the main shaft 31 is rotatably disposed in the first mounting groove 2101; A spur gear 22 is fixedly mounted on the main shaft 31 in the first mounting groove 2101; Baffles 701 are installed in the two installation frames 7 respectively; The front sides of the two baffles 701 are respectively detachably contacted with the first rectangular clamping blocks 20, and the two first rectangular clamping blocks 20 are respectively slidably clamped in the two installation frames 7; A transmission plate 6 is fixedly installed between the two first rectangular blocks 20; The transmission plate 6 is slidably disposed on the upper end of the horizontal mounting plate 21; The lower end of the transmission plate 6 is provided with a second mounting groove 602 that cooperates with the first mounting groove 2101; The rack plate 2 is fixedly installed in the second installation groove 602; The spur gear 22 is meshedly connected with the rack plate 2; The transmission plate 6 drives the first sliding mechanism, the second sliding mechanism and the alarm mechanism to work respectively by sliding. The main shaft 31 drives the spur gear 22 fixed and coaxially mounted therewith to start rotating during the rotation process. The spur gear 22 drives the rack plate 2 meshing therewith to start sliding during the rotation process. When the water level rises, the reference Figure 1 , the rack plate 2 starts to slide backward, and in the process of sliding backward, the rack plate 2 drives the transmission plate 6 fixedly mounted thereon to start sliding backward, and in the process of sliding backward, the transmission plate 6 drives the first rectangular blocks 20 on both sides to start sliding backward, and the sliding tracks of the two first rectangular blocks 20 are limited by the mounting frames 7 on both sides. In the process of sliding backward, the two first rectangular blocks 20 respectively drive the first sliding mechanism, the second sliding mechanism and the alarm mechanism described later to start working, and the baffle 701 is used to limit the sliding limit position of the transmission plate 6.

[0023] The first sliding mechanism includes a T-shaped slider 23, a flip plate 5, a push rod 27, and an expansion mounting plate 25; A T-shaped slide groove 601 is provided on the front wall of the transmission plate 6; The two sides of the T-shaped slide groove 601 are slidably mounted with the horizontal plates of the T-shaped slide blocks 23; The front ends of the two mounting frames 7 are rotatably mounted with the first ends of the flip plates 5, and the middle parts of the second ends of the two flip plates 5 are respectively provided with grooves; The first connecting shafts are respectively installed in the two grooves; the vertical plates of the two T-shaped sliders 23 are respectively rotatably connected with the two first connecting shafts; Push rods 27 are respectively installed on the outer walls of the vertical plates of the two T-shaped slide blocks 23; The outer ends of the two push rods 27 are respectively installed with expansion mounting plates 25; Two flow rate monitoring fans 26 are respectively rotatably arranged on the front walls of the two expansion mounting plates 25 through the first rotating shaft; Both expansion mounting plates 25 are provided with a plurality of water channels 9, see Figure 3 When the transmission plate 6 slides backward, the two flip plates 5 begin to rotate backward with the cooperation of the two T-shaped sliders 23. During the backward rotation of the two flip plates 5, the two T-shaped sliders 23 begin to slide outward, and the expansion mounting plates 25 fixedly connected to the two T-shaped sliders 23 also begin to slide outward with the two T-shaped sliders 23. The flow rate monitoring fans 26 installed on the two expansion mounting plates 25 also extend outward with the two expansion mounting plates 25, so that they can contact the passing water flow and monitor the flow rate of the water flow.

[0024] The second sliding mechanism comprises a second rectangular block 18, a second connecting rod 8, a connecting rod 17, and a first sliding rod 11; The first ends of a plurality of connecting rods 17 are respectively mounted on the rear walls of the two first rectangular blocks 20; The second ends of the plurality of connecting rods 17 on one side slide through the baffles 701 on the same side and are fixed with the second rectangular blocks 18; The two second rectangular blocks 18 are respectively slidably disposed on the rear sides of the two baffles 701 , and the two second rectangular blocks 18 are both slidably disposed in the two installation frames 7 ; Second connecting shafts are respectively installed on the lower sides of the outer walls of the two second rectangular blocks 18, and the first ends of the second connecting rods 8 are rotatably mounted on the two second connecting shafts; A plurality of first rectangular through holes 1004 are installed at equal intervals on the top walls of the horizontal plates of the two L-shaped mounting plates 10, and a first sliding rod 11 is slidably installed in each of the plurality of rectangular through holes 1004; A plurality of first rectangular through grooves 1001 cooperating with the first rectangular through holes 1004 are respectively provided on the inner walls of the transverse plates of the two L-shaped mounting plates 10; First mounting frames 1101 are respectively mounted on the front walls of the first sliding bars 11, and the first mounting frames 1101 are respectively slidably penetrated with the first rectangular through slots 1001; The second ends of the two second connecting rods 8 are rotatably disposed in two first mounting frames 1101 close to the side walls of the waterproof box 15; The top ends of the two first sliding bars 11 close to the side wall of the waterproof box 15 are movably disposed above the two first rectangular through holes 1004 that match with them; The vertical mounting plate 12 is fixed between the top ends of the two first slide bars 11 close to the side wall of the waterproof box 15; The two second rectangular blocks 18 respectively drive the alarm mechanism to work by sliding; The two first mounting frames 1001 drive the third sliding mechanism to work respectively by sliding, and the two transmission plates 6 drive the two second rectangular blocks 18 to start sliding backwards through a plurality of connecting rods 17 during the backward sliding process, and the two second rectangular blocks 18 drive the alarm mechanism described later to start working during the backward sliding process.

[0025] The alarm mechanism comprises a second slide bar 19, a positive electrode block 1901, a negative electrode block 1502, a wire, and a waterproof telescopic barrel 28; The first ends of the second slide bars 19 are fixedly mounted on the rear walls of the two second rectangular blocks 18 respectively; The second ends of the two second sliding rods 19 are respectively slidably penetrated through the rear side walls of the two installation frames 7; Second rectangular through holes 1503 are respectively provided on both sides of the front wall of the waterproof box 15, and the second ends of the two second sliding rods 18 are respectively slidably disposed in the two second rectangular through holes 1503; The two inner side walls of the waterproof box 15 are respectively provided with second rectangular through grooves 1501, and the two second rectangular through grooves 1501 are respectively connected with the two second rectangular through holes 1503; The inner walls of the two second slide bars 19 are respectively mounted with positive electrode blocks 1901, and the front walls of the two positive electrode blocks 1901 are respectively in detachable contact with the inner side of the front wall of the waterproof box 15; Negative electrode blocks 1502 are respectively installed on both sides of the rear wall of the waterproof box 15, and the two positive electrode blocks 1901 are respectively in detachable contact with the two negative electrode blocks 1502; A control board is electrically connected to one side of the two negative electrode blocks 1502, and the control board is electrically connected to the two flow rate monitoring fans 26 through a plurality of first wires; The upper end of the sealing cover 16 is fixedly mounted with the fixed ends of a plurality of waterproof telescopic barrels 28, and the fixed ends of the plurality of waterproof telescopic barrels 28 are respectively connected to the sealing cover 16; The movable ends of the plurality of waterproof telescopic barrels 28 are respectively fixedly connected to the lower ends of the vertical mounting plates 12; The control panel is electrically connected to the warning lights 1201 through the second wires, and the second wires are respectively connected to the waterproof telescopic barrels 28. The two second rectangular blocks 18 respectively drive the second slide bars 19 fixed thereto to start sliding backwards during the backward sliding process. The two second slide bars 19 will slide through the two installation frames 7 and the waterproof box 15 in a sealed manner during the backward sliding process, and enter the interior of the waterproof box 15. Figure 4During the sliding process of the two second slide bars 19, the positive electrode block 1901 fixedly connected to the second slide bar 19 also starts to slide backward with the second slide bar 19. There are second rectangular through grooves 1501 on the two inner side walls of the waterproof box 15, which provide sliding tracks for the two positive electrode blocks 1901 and enable them to be exposed. During the sliding process of the two positive electrode blocks 1901 backward, they will touch the negative electrode block 1502 to energize the control board. A flow rate sensor is installed inside the control board, which can convert the rotation speed of the two flow rate monitoring fans 26 into electrical signals. This is the prior art and will not be described in detail. The flow rate monitoring fan 26 starts to rotate with the water flow. When the flow rate is 2m / s-4m / s, the first warning light 1201 starts When the flow rate is between 4m / s and 8m / s, the second warning light 1201 starts to light up. When the flow rate is above 8m / s, the third warning light 1201 lights up. Users are not limited to the above-mentioned monitoring intervals and can set alarm intervals according to specific circumstances. The two second rectangular blocks 18 also drive the second connecting rods 8 to deflect upward while sliding backward. In the process of upward deflection, the two second connecting rods 8 also drive the two first mounting frames 1101 to slide upward. The two first sliding bars 11 fixedly installed with the two first mounting frames 1101 drive the vertical mounting plate 12 to slide upward. When the vertical mounting plate 12 slides upward, the waterproof telescopic barrel 28 begins to extend upward.

[0026] The third sliding mechanism comprises a first linkage shaft 32, a second linkage shaft 29, and a coupling member 30; A plurality of second rectangular through holes 1003 are respectively provided at the upper ends of the vertical plates of the two L-shaped mounting plates 10, and a plurality of protection rails 13 are respectively slidably disposed in the plurality of second rectangular through holes 1003; The inner walls of the vertical plates of the two L-shaped mounting plates 10 are respectively provided with third rectangular through grooves 1002 that cooperate with the second rectangular through holes 1003, and the third rectangular through grooves 1002 are connected to the second rectangular through holes 1003 that cooperate with them; Second mounting frames 1301 are respectively mounted on the inner walls of the plurality of protection fences 13; The same second linkage shaft 29 is installed through the plurality of second mounting frames 1301 located on the vertical plate of the same L-shaped mounting frame 10; The same first linkage shaft 32 is installed through a plurality of first mounting frames 1101 located on the same L-shaped mounting frame 10 transverse plate; The first linkage shaft 32 and the second linkage shaft 29 on the same side are fixedly connected via a coupling 30; The outer sides of the plurality of protection fences 13 are respectively slidably sleeved with expansion protection fences 14; A plurality of expansion protection fences 14 are respectively connected to the upper ends of the vertical plates of the adjacent L-shaped mounting frames 10 via return springs 24; When the two first mounting frames 1101 start to move upward, they will start to move upward through the two first linkage shafts 32 respectively, and the several first mounting frames 1101 connected to the first linkage shafts 32 on both sides will be lifted up. At the same time, when the first linkage shaft is lifted up, it will drive the second linkage shafts 29 on both sides to be lifted up through the connecting shafts 30 on both sides. At this time, the several second mounting frames 1301 connected to the two second linkage shafts 29 also drive the protection fence 13 to be lifted up to achieve the protection function. It should be noted that when the protection fence 13 is lifted up, the expanded protection fence 14 cooperating therewith will also be lifted up. When the expanded protection fence 14 is lifted up, it starts to stretch the reset spring 24. At this time, the resetting pulling force of the reset spring 24 is less than the buoyancy of the float 3. When the water level drops, the reset spring 24 starts to reset and presses the protection fence 13 downward through the expanded protection fence 14, so that the float 3 can be quickly reset.

[0027] Alarms are installed in each of the warning lights 1201, and the alarms are electrically connected to the control panel through wires. The purpose is that when the warning lights 1201 light up, the alarms can sound accordingly. The more the warning lights 1201 light up, the louder the alarms will sound, thereby serving as a warning.

[0028] Implementation method of the present invention: The vertical plates of the two L-shaped mounting plates 10 of the device are installed on both sides of the river bank. The user can select a suitable L-shaped mounting plate according to the width between the two sides of the river bank to ensure that the waterproof box 15 can be located in the central area of ​​the river for more accurate monitoring; After the equipment is installed, the floats 3 on both sides are located on the water level line. Before the flood comes, the water level will rise accordingly. The floats 3 on both sides will also slowly lift up with the rising water level, and drive the main shaft 31 to start rotating during the lifting process. The main shaft 31 will drive the transmission plate 6 to slide backwards during the rotation process. The transmission plate 6 will drive the second slide bars 19 on both sides to slide inside the waterproof box 15 during the sliding process. The two second slide bars 19 will make the positive block 1901 and the negative block 1502 contact during the sliding process, so that the control board is energized and works; When the control panel is powered on, the guardrails 13 on both sides of the river bank rise upward to protect pedestrians on both sides of the river bank, and the two expansion mounting plates 25 drive the flow rate monitoring fan 26 to extend outward to contact the river. Before a flood comes, the flow rate of the water will gradually increase. The rotation speed of the two flow rate monitoring fans 26 will increase as the speed of the water flow increases, and the rotation speed of the monitoring fans will be transmitted to the several warning lights 1201 raised upward through the control panel. The several warning lights 1201 will light up in sequence with the speed range of the monitoring fans. When the warning lights 1201 light up, the alarm inside them will also sound. The more warning lights 1201 light up, the louder the alarm will be, thereby serving as an early warning.

[0029] The water level detection mechanism of the present invention can detect and warn the river water level in real time, the alarm mechanism of the present invention can effectively monitor and alarm the water flow velocity, and the guardrail of the present invention can slide back and forth driven by the third sliding mechanism. When the water level rises, the guardrail is lifted to effectively play a protective role.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A river flood warning device, characterized by: It comprises an L-shaped mounting plate (10), a waterproof box (15), a horizontal mounting plate (21), a mounting frame (7), a guardrail (13), a vertical mounting plate (12), a warning light (1201), a flow rate monitoring fan (26), a water level monitoring mechanism, a transmission mechanism, an alarm mechanism, a first sliding mechanism, a second sliding mechanism, and a third sliding mechanism; The two sides of the waterproof box (15) are respectively fixed with transverse plates of an L-shaped mounting plate (10), and the ends of the transverse plates of the two L-shaped mounting plates (10) are respectively fixed on the two side walls of the waterproof box (15); The vertical plate outer walls of the two L-shaped installation plates (10) are respectively fixedly connected to the river bank wall (101) to be installed; A first gap is left between the bottom wall of the waterproof box (15) and the upper end of the riverbed (1); A horizontal mounting plate (21) is fixedly provided on the lower side of the front wall of the waterproof box (15); Installation frames (7) are fixedly provided on both sides of the upper end of the horizontal installation plate (21), and a second gap is left between the two installation frames (7) and the river bank walls (101) to be installed on both sides; The outer sides of the two installation frames (7) are both provided with a same water level monitoring mechanism; A transmission mechanism is movably provided at the upper end of the horizontal mounting plate (21), and the transmission mechanism is movably provided between the two mounting frames (7); The transmission mechanism is driven to work by the water level monitoring mechanism; An alarm mechanism is provided in the waterproof box (15), and the alarm mechanism is driven to operate by the second sliding mechanism; Flow rate monitoring fans (26) are movably provided on the outer sides of the two installation frames (7), and the two flow rate monitoring fans (26) are driven to slide by a first sliding mechanism, and the first sliding mechanism is driven to work by the transmission mechanism; The upper end of the waterproof box (15) is detachably provided with a sealing cover (16), and a vertical mounting plate (12) is movably provided above the sealing cover (16). The vertical mounting plate (12) is driven to slide by a second sliding mechanism, and the second sliding mechanism is driven to work by the transmission mechanism; A plurality of warning lights (1201) are provided on the vertical mounting plate (12), and the plurality of warning lights (1201) are electrically connected to the two flow rate monitoring fans (26) respectively; A plurality of protective rails (13) are movably provided on the inner walls of the horizontal plate and the vertical plate of the two L-shaped mounting plates (10), and the plurality of protective rails (13) are driven to slide by a third sliding mechanism, and the third sliding mechanism is driven to work by the second sliding mechanism.

2. The river flood warning device according to claim 1, characterized in that: The water level monitoring mechanism comprises a first connecting rod (4), a floating body (3), and a main shaft (31); A main shaft (31) is rotatably provided on the side wall of the horizontal mounting plate (21); The middle part of the first connecting rod (4) is fixedly disposed at both ends of the main shaft (31); The front ends of the two first connecting rods (4) are respectively provided with floating bodies (3), and the two floating bodies (3) are respectively arranged in the two second gaps; The main shaft (31) drives the transmission mechanism to work by rotating.

3. The river flood warning device according to claim 2, characterized in that: The transmission mechanism comprises a spur gear (22), a rack plate (2), a transmission plate (6), a first rectangular block (20), and a baffle (701); A first mounting groove (2101) is provided at the front end of the horizontal mounting plate (21), and the main shaft (31) is rotatably disposed in the first mounting groove (2101); A spur gear (22) is fixedly sleeved on the main shaft (31) located in the first mounting groove (2101); Baffles (701) are respectively provided in the two installation frames (7); The front sides of the two baffles (701) are respectively detachably in contact with a first rectangular clamping block (20), and the two first rectangular clamping blocks (20) are respectively slidably clamped in the two installation frames (7); A same transmission plate (6) is fixedly disposed between the two first rectangular clamping blocks (20); The transmission plate (6) is slidably mounted on the upper end of the horizontal mounting plate (21); The lower end of the transmission plate (6) is provided with a second mounting groove (602) that cooperates with the first mounting groove (2101); A rack plate (2) is fixedly provided in the second mounting groove (602); The spur gear (22) is meshingly connected to the rack plate (2); The transmission plate (6) drives the first sliding mechanism, the second sliding mechanism and the alarm mechanism to operate respectively by sliding.

4. The river flood warning device according to claim 3 is characterized by: The first sliding mechanism comprises a T-shaped sliding block (23), a flip plate (5), a push rod (27), and an expansion mounting plate (25); A T-shaped slide groove (601) is provided on the front wall of the transmission plate (6); Horizontal plates with T-shaped sliding blocks (23) are respectively slidably disposed on both sides of the T-shaped sliding groove (601); The front ends of the two installation frames (7) are respectively rotatably provided with first ends of the flip plates (5), and the middle parts of the second ends of the two flip plates (5) are respectively provided with grooves; A first connecting shaft is respectively arranged in the two grooves; the vertical plates of the two T-shaped slide blocks (23) are respectively rotatably arranged to penetrate the two first connecting shafts; Push rods (27) are respectively provided on the outer walls of the vertical plates of the two T-shaped sliding blocks (23); The outer ends of the two push rods (27) are respectively provided with expansion mounting plates (25); The two flow rate monitoring fans (26) are respectively rotatably arranged on the front walls of the two expansion mounting plates (25) via first rotating shafts; A plurality of water channels (9) are provided on the two expansion mounting plates (25).

5. The river flood warning device according to claim 3 is characterized by: The second sliding mechanism comprises a second rectangular block (18), a second connecting rod (8), a connecting rod (17), and a first sliding rod (11); The rear walls of the two first rectangular blocks (20) are respectively provided with first ends of a plurality of connecting rods (17); The second ends of the plurality of connecting rods (17) located on one side slide through the baffle plate (701) located on the same side and are fixed with a second rectangular clamping block (18); The two second rectangular clamping blocks (18) are respectively slidably disposed on the rear sides of the two baffles (701), and the two second rectangular clamping blocks (18) are both slidably disposed in the two installation frames (7); A second connecting shaft is respectively provided on the lower side of the outer wall of the two second rectangular clamping blocks (18), and the first end of the second connecting rod (8) is rotatably sleeved on the two second connecting shafts; A plurality of first rectangular through holes (1004) are respectively and evenly spaced on the top walls of the transverse plates of the two L-shaped mounting plates (10), and a first sliding rod (11) is respectively slidably disposed in the plurality of rectangular through holes (1004); A plurality of first rectangular through grooves (1001) that cooperate with the first rectangular through holes (1004) are respectively provided on the inner walls of the transverse plates of the two L-shaped mounting plates (10); A first mounting frame (1101) is respectively provided on the front wall of the plurality of first sliding rods (11), and the plurality of first mounting frames (1101) are respectively slidably penetrated by the plurality of first rectangular through slots (1001); The second ends of the two second connecting rods (8) are rotatably disposed in two first mounting frames (1101) close to the side walls of the waterproof box (15); The top ends of the two first sliding bars (11) close to the side wall of the waterproof box (15) are movably disposed above the two first rectangular through holes (1004) that match them; The vertical mounting plate (12) is fixedly arranged between the top ends of two first sliding bars (11) close to the side wall of the waterproof box (15); The two second rectangular blocks (18) respectively drive the alarm mechanism to operate by sliding; The two first mounting frames (1001) respectively drive the third sliding mechanism to work by sliding.

6. The river flood warning device according to claim 5, characterized in that: The alarm mechanism comprises a second sliding rod (19), a positive electrode block (1901), a negative electrode block (1502), a wire, and a waterproof telescopic barrel (28); The first ends of the second sliding rods (19) are respectively fixedly provided on the rear walls of the two second rectangular clamping blocks (18); The second ends of the two second sliding rods (19) are respectively slidably disposed through the rear side walls of the two installation frames (7); Second rectangular through holes (1503) are respectively provided on both sides of the front wall of the waterproof box (15), and the second ends of the two second sliding rods (18) are respectively slidably disposed in the two second rectangular through holes (1503); Second rectangular through grooves (1501) are respectively provided on the two inner side walls of the waterproof box (15), and the two second rectangular through grooves (1501) are respectively connected to the two second rectangular through holes (1503); A positive electrode block (1901) is respectively provided on the inner walls of the two second sliding bars (19), and the front walls of the two positive electrode blocks (1901) are respectively in detachable contact with the inner side of the front wall of the waterproof box (15); Negative electrode blocks (1502) are respectively provided on both sides of the rear wall of the waterproof box (15), and the two positive electrode blocks (1901) are respectively in detachable contact with the two negative electrode blocks (1502); One side of the two negative electrode blocks (1502) is electrically connected to a control board, and the control board is electrically connected to the two flow rate monitoring fans (26) via a plurality of first wires; The upper end of the sealing cover (16) is fixedly provided with a plurality of fixed ends of waterproof telescopic barrels (28), and the fixed ends of the plurality of waterproof telescopic barrels (28) are respectively connected to the sealing cover (16); The movable ends of the plurality of waterproof telescopic barrels (28) are respectively fixedly connected to the lower ends of the vertical mounting plates (12); The control panel is electrically connected to the plurality of warning lights (1201) via a plurality of second wires, and the plurality of second wires are respectively arranged to penetrate the plurality of waterproof telescopic barrels (28).

7. The river flood warning device according to claim 5, characterized in that: The third sliding mechanism comprises a first linkage shaft (32), a second linkage shaft (29), and a shaft connecting member (30); The upper ends of the vertical plates of the two L-shaped mounting plates (10) are respectively provided with a plurality of second rectangular through holes (1003), and the plurality of protection rails (13) are respectively slidably arranged in the plurality of second rectangular through holes (1003); A third rectangular through groove (1002) cooperating with the second rectangular through hole (1003) is respectively provided on the inner wall of the vertical plates of the two L-shaped mounting plates (10), and the third rectangular through groove (1002) and the cooperating second rectangular through hole (1003) are connected to each other; A second mounting frame (1301) is respectively provided on the inner walls of the plurality of protection fences (13); A second linkage shaft (29) is provided through a plurality of second mounting frames (1301) located on the vertical plate of the same L-shaped mounting frame (10); A common first linkage shaft (32) is provided through a plurality of first mounting frames (1101) located on a same horizontal plate of the L-shaped mounting frame (10); The first linkage shaft (32) and the second linkage shaft (29) located on the same side are fixedly connected via a shaft coupling (30); The outer sides of the plurality of protection fences (13) are respectively slidably sleeved with expansion protection fences (14); A plurality of the expansion protection fences (14) are respectively connected to the upper ends of the L-shaped mounting frames (10) adjacent thereto via return springs (24).

8. The river flood warning device according to claim 6, characterized in that: Several of the warning lights (1201) are respectively provided with alarms, and the several alarms are electrically connected to the control panel via wires.

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