Flood prevention blocking device

Abstract

The invention discloses a flood prevention blocking device which comprises a base, a driving assembly and a lifting plate. A cavity used for containing the driving assembly and a vertical groove used for containing the lifting plate are formed in the base, and a top grating is arranged at the top of the cavity of the base; the driving assembly comprises an energy storage pipe, a piston and a first spring, the piston and the first spring are both installed in the energy storage pipe, the piston compresses the first spring to store energy, and the energy storage pipe communicates with the vertical groove; the flood prevention blocking device can be pre-buried at entrances and exits of underground buildings such as underground parking lots, underground shopping malls and underground stations, the whole device is located below the ground level, and normal traffic and pedestrians are not affected; when flood comes, the first spring is automatically triggered, and then the lifting plate ascends to block the flood; the whole device has extremely high response speed and does not need to be manually started, a dam for blocking the flood can be constructed in an area which is easily influenced by the flood at the first time, and the loss is reduced.

Description

Technical Field

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

[0002] When there is an extreme rainstorm in a city, it is easy to cause short-term flooding in the city. Since there are a large number of underground parking lots, underground shopping malls, underground stations and other underground buildings in the city, the flooding in the city can easily flow into various underground buildings in a short period of time, causing loss of life and property.

[0003] According to practical experience, the total amount of urban waterlogging in most cities is not large. The main reason for various losses is that heavy rain brings too much water in a short period of time. As long as effective flood prevention can be carried out during heavy rain and low-lying or underground buildings are protected, the urban waterlogging floods can recede on their own shortly after the heavy rain decreases or stops.

[0004] However, in the current cities, the main way to resist urban flooding is to build sandbag dams artificially, which have a slow response speed and are often difficult to effectively block floods in time when faced with heavy rains. If some automatic flood prevention and blocking devices can be pre-installed in areas susceptible to floods, floods can be automatically blocked after heavy rains come, which will effectively reduce the losses caused by floods. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the prior art lacks an automated flood blocking device in the face of sudden rainstorms and floods.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a flood prevention and blocking device, including a base, a driving assembly and a lifting plate; The base is provided with a cavity for accommodating the driving assembly and a vertical slot for accommodating the lifting plate, and a top grille is provided on the top of the cavity of the base; the lifting plate is made of plastic material or wood material, and the mass of the lifting plate is as small as possible so as to lift the lifting plate later; The driving assembly includes an energy storage tube, a piston and a first spring. The piston and the first spring are both installed in the energy storage tube. The piston compresses the first spring to store energy. The energy storage tube is connected to the vertical groove. When a flood comes, the first spring drives the piston to translate, and the piston pushes the flood in the energy storage tube into the vertical groove, driving the lifting plate in the vertical groove to rise upward to block the flood.

[0007] The flood prevention and blocking device of the present invention can be pre-buried at the entrances and exits of underground buildings such as underground parking lots, underground shopping malls, and underground stations. The entire device is located below the ground level and does not affect normal traffic and pedestrians. When a flood comes, the first spring is automatically triggered, and then the lifting plate rises to block the flood. The flood prevention and blocking device of the present invention has an extremely fast response speed and does not require manual activation. It can build a dam to block the flood in an area susceptible to floods in the first time to reduce losses.

[0008] Furthermore, the flood prevention device also includes an energy storage component, which includes a partition, a spiral blade, a reducer, a pulley, a belt and a lever. The partition is horizontally installed in the cavity of the base, and the spiral blade is installed on the partition. The spiral blade drives the pulley to rotate through the reducer, and the belt is wound around the pulley. The lever is fixed on the belt, and the end of the lever is inserted into the energy storage tube. A groove aligned with the movement path of the lever should be provided on the energy storage tube to ensure that the lever can move normally under the action of the belt.

[0009] The spiral blade is driven to rotate by the flowing rainwater of daily rainfall, which drives the pulley to rotate. The belt drives the lever to translate in the energy storage tube and drives the piston to compress the first spring to store energy. The reducer used in the present invention has a high reduction ratio, and the pulley can only be driven to rotate by the spiral blade. The pulley cannot drive the spiral blade to rotate in the opposite direction. Therefore, when the first spring is compressed to the limit state, the lever and the piston will stay in the current position.

[0010] The first spring of the present invention can be automatically triggered when a flood comes, and the specific method is as follows: the driving assembly also includes a lifting grille, a guide column and a second spring; the guide column passes through the partition, the lifting grille is installed on the top of the guide column, the bottom of the guide column is fixedly connected to the energy storage pipe, the second spring is sleeved on the guide column, and the second spring is located between the lifting grille and the partition; During normal rainfall, rainwater passes through the lifting grille normally, and the lifting grille remains in the current position; when heavy rain causes floods, a large amount of rainwater cannot pass through the lifting grille in time, resulting in water accumulation above the lifting grille, and the accumulated water presses the lifting grille downward, and the guide column and the energy storage tube move downward synchronously with the lifting grille, and the second spring is compressed in this process; after the energy storage tube moves downward, the lever inserted into the energy storage tube is separated from the energy storage tube, that is, the lever is separated from the piston in the energy storage tube, and after the blocking effect of the lever is lost, the compressed first spring will drive the piston to quickly translate and push the flood in the energy storage tube, and the flood quickly rushes into the vertical slot and lifts the lifting plate in the vertical slot.

[0011] Furthermore, the driving assembly also includes a valve plate, which is fixedly connected to the energy storage tube and is provided with a first drainage hole; a second drainage hole is provided at the bottom of the vertical slot, and when the lifting grille is in the highest position under the action of the second spring, the second drainage hole is aligned with the first drainage hole; this means that during normal rainfall, rainwater with a normal flow rate will pass through the lifting grille to the bottom of the vertical slot, and then be discharged normally along the first drainage hole and the second drainage hole; when a flood occurs, the valve plate will descend together with the energy storage tube, and at this time the first drainage hole and the second drainage hole will be misaligned, which is conducive to the lifting of the lifting plate by the flood pouring in from the energy storage tube.

[0012] In the present invention, after the lifting plate is lifted up by the flood, a corresponding mechanism should be provided to ensure that the lifting plate does not fall down again; the method of the present invention is as follows: a section of inclined tooth surface is provided on the upper part of the vertical groove, and a tooth surface pattern is provided on the lower surface of the lifting plate; when the lifting plate is lifted up, one side of the lifting plate is subjected to the pressure of the flood, so that the lifting plate tilts at the upper part of the vertical groove, and the tooth surface pattern on the surface of the lifting plate and the pattern on the inclined tooth surface of the vertical groove bite each other, ensuring that the lifting plate stays at the current height.

[0013] Furthermore, the flood prevention and blocking device also includes a vertical opening and closing plate, a horizontal rotating shaft is arranged on the vertical opening and closing plate, the vertical opening and closing plate is hinged on the lifting plate through the horizontal rotating shaft, and a buoy is arranged at the rotating end of the vertical opening and closing plate; a hydraulic oil chamber and a hydraulic cylinder are arranged on the lifting plate, an elastic membrane is arranged on the surface of the hydraulic oil chamber, and the hydraulic oil chamber is connected with the hydraulic cylinder; a rack is arranged on the telescopic rod of the hydraulic cylinder; a gear is arranged on the horizontal rotating shaft of the vertical opening and closing plate, and the gear is meshed with the rack; the vertical opening and closing plate is preferably made of plastic to reduce its own weight; When the lifting plate is raised, the hydraulic oil chamber on the lifting plate faces the flood. The elastic membrane on the surface of the hydraulic oil chamber is subjected to the pressure of the flood, squeezing the hydraulic oil in the hydraulic oil chamber into the hydraulic cylinder, causing the telescopic rod of the hydraulic cylinder to translate. The rack on the telescopic rod drives the gear to rotate during the translation process, thereby driving the horizontal shaft to rotate, causing the vertical opening and closing plate to flip open. After the vertical opening and closing plate is opened, the height of the entire lifting plate increases, which can block deeper floods.

[0014] Furthermore, the flood prevention device further comprises a horizontal opening and closing plate, on which a vertical rotating shaft is arranged, and the horizontal opening and closing plate is hinged to the vertical opening and closing plate through the vertical rotating shaft; a guide groove for guiding water flow into between the horizontal opening and closing plate and the vertical opening and closing plate is arranged on the surface of the vertical opening and closing plate; After the vertical opening and closing plate is unfolded, the rushing flood flows into between the horizontal opening and closing plate and the vertical opening and closing plate from the diversion groove, causing the horizontal opening and closing plate to rotate and unfold.

[0015] Furthermore, a first one-way flap is provided on the vertical opening and closing plate, and a second one-way flap is provided on the horizontal opening and closing plate; both the first one-way flap and the second one-way flap can only be flipped in one direction, and the functions of the two are the same. The first one-way flap is used to reduce the flood resistance encountered by the vertical opening and closing plate when it is flipped open, and the second one-way flap is used to reduce the flood resistance encountered by the horizontal opening and closing plate when it is flipped open.

[0016] Furthermore, a torsion spring is arranged on the vertical rotating shaft, and the torsion spring is used to drive the horizontal opening and closing plate to automatically flip and close after the flood recedes.

[0017] Beneficial effects: (1) The flood prevention and blocking device of the present invention is pre-buried in flood-prone areas. When a flood comes, the lifting plate automatically rises to block the flood. It has an extremely fast response speed and does not require manual activation. It can build a dam to block the flood in the area susceptible to floods in the first time to reduce losses. (2) The flood prevention and blocking device of the present invention uses the water flow of daily rainfall to realize the energy storage of the first spring. The energy storage and triggering of the entire device do not require additional energy. It can be installed and used at any time, has extremely low requirements for the installation environment, and is highly practical. (3) The flood prevention and blocking device of the present invention is equipped with a vertical opening and closing plate and a horizontal opening and closing plate on the lifting plate, which further expands the height of the lifting plate and improves the ability of the device to block floods. (4) The flood prevention and blocking device of the present invention is equipped with a first one-way flap and a second one-way flap on the vertical opening and closing plate and the horizontal opening and closing plate, which reduces the flood resistance borne by the two when they are unfolded, which is conducive to the smooth unfolding of the vertical opening and closing plate and the horizontal opening and closing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereoscopic diagram of the flood prevention and blocking device of Example 1.

[0019] Figure 2 It is a cross-sectional view of the flood prevention barrier device of Example 1.

[0020] Figure 3 yes Figure 2 Front view of .

[0021] Figure 4 This is a state diagram of the lifting plate in the flood prevention and blocking device of Example 1 being jacked up.

[0022] Figure 5 yes Figure 4 Front view of .

[0023] Figure 6 yes Figure 5 Another state diagram of the lifting plate.

[0024] Figure 7 It is a stereoscopic diagram of the driving assembly and the energy storage assembly in Example 1.

[0025] Figure 8 yes Figure 7 The state diagram with the lifting grille hidden and the energy storage tube partially cut away.

[0026] Fig. 9 It is a three-dimensional diagram of the vertical groove in Example 1.

[0027] Fig.10 This is a working status diagram of the flood prevention and blocking device of Example 1.

[0028] Fig.11 It is a three-dimensional diagram of the lifting plate, the horizontal opening and closing plate and the vertical opening and closing plate in Example 1.

[0029] Fig.12 yes Fig.11 A enlarged view of .

[0030] Fig.13 This is a diagram of the state of the vertical opening and closing panel after it is unfolded.

[0031] Fig.14 This is the state diagram of the horizontal opening and closing panel after it is unfolded.

[0032] Among them: 100, base; 110, cavity; 120, vertical groove; 121, second drainage hole; 122, oblique tooth surface; 130, top grille; 200, drive assembly; 210, energy storage tube; 220, piston; 230, first spring; 240, lifting grille; 250, guide column; 260, second spring; 270, valve plate; 271, first drainage hole; 300, lifting plate; 310, tooth surface pattern; 320, hydraulic oil chamber; 330 , hydraulic cylinder; 340, rack; 400, energy storage assembly; 410, partition; 420, spiral blade; 430, reducer; 440, pulley; 450, belt; 460, lever; 500, vertical opening and closing plate; 510, horizontal rotating shaft; 520, buoy; 530, gear; 540, guide groove; 550, first one-way flap; 600, horizontal opening and closing plate; 610, vertical rotating shaft; 620, second one-way flap; 630, torsion spring. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with specific implementation modes.

[0034] Example 1

[0035] like Figures 1 to 10 As shown, the flood prevention and blocking device of this embodiment includes a base 100 , a driving assembly 200 , a lifting plate 300 and an energy storage assembly 400 .

[0036] The base 100 is provided with a cavity 110 for accommodating the driving assembly 200 and a vertical groove 120 for accommodating the lifting plate 300 , and a top grille 130 is provided at the top of the cavity 110 of the base 100 .

[0037] like Figure 4 and Figure 7 As shown, the energy storage assembly 400 includes a partition 410, a spiral blade 420, a reducer 430, a pulley 440, a belt 450 and a lever 460. The partition 410 is horizontally installed in the cavity 110 of the base 100, the spiral blade 420 is installed on the partition 410, the spiral blade 420 drives the pulley 440 to rotate through the reducer 430, the belt 450 is wound around the pulley 440, and the lever 460 is fixed on the belt 450.

[0038] The driving assembly 200 includes an energy storage tube 210, a piston 220, a first spring 230, a lifting grid 240, a guide column 250, a second spring 260 and a valve plate 270. Figure 8 As shown, the piston 220 and the first spring 230 are both installed in the energy storage tube 210, and the piston 220 compresses the first spring 230 to store energy; the end of the lever 460 is inserted into the energy storage tube 210; a groove aligned with the movement path of the lever 460 is provided on the energy storage tube 210 to ensure that the lever 460 can move normally under the action of the belt 450. The spiral blade 420 in the energy storage assembly 400 is driven to rotate by the flowing rainwater of daily rainfall, driving the pulley 440 to rotate, and the belt 450 drives the lever 460 to translate in the energy storage tube 210 and drives the piston 220 to compress the first spring 230 to store energy; the reducer 430 used in this embodiment has a high reduction ratio, and the spiral blade 420 can only drive the pulley 440 to rotate, and the pulley 440 cannot reversely drive the spiral blade 420 to rotate; therefore, when the first spring 230 is compressed to the limit state, the lever 460 and the piston 220 will stay at the current position.

[0039] like Figure 7 and Fig. 9 As shown, the bottom of the energy storage tube 210 and the vertical slot 120 are each provided with a square hole. Figure 2 The energy storage tube 210 and the vertical slot 120 are connected through the square hole.

[0040] like Figure 2 and Figure 3 As shown, the guide column 250 passes through the partition 410, the lifting grid 240 is installed on the top of the guide column 250, the bottom of the guide column 250 is fixedly connected to the energy storage tube 210, and the second spring 260 is sleeved on the guide column 250, and the second spring 260 is located between the lifting grid 240 and the partition 410. The entire energy storage assembly 400 can move up and down, but due to the action of the second spring 260, under normal circumstances, the energy storage assembly 400 is in a state such as Figure 2 and Figure 3 High position shown.

[0041] like Figure 7As shown, the valve plate 270 is fixedly connected to the energy storage tube 210, and a first drain hole 271 is provided on the valve plate 270; Fig. 9 As shown, the bottom of the vertical groove 120 is provided with a second drainage hole 121. When the lifting grille 240 is in a position as shown in FIG. Figure 2 When in the highest position shown, the second drainage hole 121 is aligned with the first drainage hole 271; this means that during normal rainfall, normal flow of rainwater will pass through the lifting grille 240 to the bottom of the vertical groove 120, and then be discharged normally along the first drainage hole 271 and the second drainage hole 121.

[0042] The flood prevention device of this embodiment is used as follows Fig.10 As shown, it is embedded in the entrances and exits of underground buildings such as underground parking lots, underground shopping malls, underground stations, etc. It can also be embedded in other areas where floods are to be prevented. The entire device is located below the ground level. The lifting plate 300 is retracted inside the vertical groove 120 during non-flood periods, and does not affect normal traffic and pedestrians.

[0043] In normal rainfall, the rain comes from Figure 2 The lifting grille 240 shown in the figure passes normally, and the lifting grille 240 remains in the current position. The normal flow of rainwater will be discharged from the first drainage hole 271 and the second drainage hole 121. When a heavy rain causes a flood, a large amount of rainwater cannot pass through the lifting grille 240 in time, resulting in water accumulation above the lifting grille 240. The weight of the accumulated water presses the lifting grille 240 downward, as shown in FIG. Figure 4 and Figure 5 As shown, the guide column 250 and the energy storage tube 210 move downward synchronously with the lifting grid 240, and the second spring 260 is compressed during this process. Figure 8 After the energy storage tube 210 in the energy storage tube 210 moves downward, the lever 460 inserted into the energy storage tube 210 is separated from the energy storage tube 210, that is, the lever 460 is separated from the piston 220 in the energy storage tube 210. After the blocking effect of the lever 460 is lost, the compressed first spring 230 drives the piston 220 to quickly translate and push the flood water in the energy storage tube 210, that is, the flood water in the energy storage tube 210 rapidly flows into the Figure 5 The vertical slot 120 in the vertical slot 120 is lifted up and the lifting plate 300 in the vertical slot 120 is lifted up. Fig.10 The structure shown is a dam capable of resisting floods. In practical applications, the flood prevention and blocking device of this embodiment will be arranged in rows according to the on-site conditions.

[0044] like Figure 6As shown, a beveled tooth surface 122 is provided at the upper portion of the vertical groove 120, and a tooth surface pattern 310 is provided at the lower surface of the lifting plate 300; when the lifting plate 300 is lifted up, one side of the lifting plate 300 is subjected to the pressure of the flood, so that the lifting plate 300 tilts at the upper portion of the vertical groove 120, and the tooth surface pattern 310 on the surface of the lifting plate 300 and the pattern on the beveled tooth surface 122 of the vertical groove 120 engage with each other to ensure that the lifting plate 300 stays at the current height.

[0045] In order to improve the water blocking ability of the lifting plate 300, the present embodiment also configures a vertical opening and closing plate 500 and a horizontal opening and closing plate 600 on the lifting plate 300. Fig.11 and Fig.12 As shown, a horizontal rotating shaft 510 is arranged on the vertical opening and closing plate 500, and the vertical opening and closing plate 500 is hinged on the lifting plate 300 through the horizontal rotating shaft 510, and a float 520 is arranged at the rotating end of the vertical opening and closing plate 500; a hydraulic oil chamber 320 and a hydraulic cylinder 330 are arranged on the lifting plate 300, and an elastic membrane is arranged on the surface of the hydraulic oil chamber 320, and the hydraulic oil chamber 320 is connected with the hydraulic cylinder 330; a rack 340 is arranged on the telescopic rod of the hydraulic cylinder 330; a gear 530 is arranged on the horizontal rotating shaft 510 of the vertical opening and closing plate 500, and the gear 530 is meshed with the rack 340.

[0046] When the lifting plate 300 is raised, the hydraulic oil chamber 320 on the lifting plate 300 faces the flood. The elastic membrane on the surface of the hydraulic oil chamber 320 is subjected to the pressure of the flood, and the hydraulic oil in the hydraulic oil chamber 320 is squeezed into the hydraulic cylinder 330, so that the telescopic rod of the hydraulic cylinder 330 translates. The rack 340 on the telescopic rod drives the gear 530 to rotate during the translation process, thereby driving the horizontal shaft 510 to rotate, so that the vertical opening and closing plate 500 is opened and closed as shown in FIG. Fig.13 After the vertical opening and closing plate 500 is opened, the height of the entire lifting plate 300 increases, and it can block deeper floods.

[0047] like Fig.13 As shown in the figure, the horizontal opening and closing plate 600 is provided with a vertical shaft 610, and the horizontal opening and closing plate 600 is hinged on the vertical opening and closing plate 500 through the vertical shaft 610; the surface of the vertical opening and closing plate 500 is provided with a guide groove 540 for guiding the water flow into the space between the horizontal opening and closing plate 600 and the vertical opening and closing plate 500; after the vertical opening and closing plate 500 is unfolded, the flood water rushes into the space between the horizontal opening and closing plate 600 and the vertical opening and closing plate 500 from the guide groove 540, so that the horizontal opening and closing plate 600 is as shown in the figure. Fig.14 A torsion spring 630 is arranged on the vertical rotating shaft 610, and the torsion spring 630 is used to drive the horizontal opening and closing plate 600 to automatically flip and close after the flood recedes.

[0048] Among them, a first one-way flap 550 is arranged on the vertical opening and closing plate 500, and a second one-way flap 620 is arranged on the horizontal opening and closing plate 600; the first one-way flap 550 and the second one-way flap 620 can only be flipped in one direction, and the functions of the two are the same. The first one-way flap 550 is used to reduce the flood resistance encountered by the vertical opening and closing plate 500 when flipped open, and the second one-way flap 620 is used to reduce the flood resistance encountered by the horizontal opening and closing plate 600 when flipped open.

[0049] In this embodiment, the horizontal opening and closing plate 600, the vertical opening and closing plate 500 and the lifting plate 300 all have a certain reset ability. After the flood recedes, the horizontal opening and closing plate 600 can be flipped and closed again under the action of the torsion spring 630, and the vertical opening and closing plate 500 can be flipped and closed again under the action of its own gravity. After losing the pushing effect of the flood, the lifting plate 300 can also rely on its own gravity to retract into the vertical groove 120.

[0050] It should be noted that since the flood prevention and blocking device of this embodiment does not have a reset power device, the closing and resetting of the horizontal opening and closing plates 600, the vertical opening and closing plates 500 and the lifting plates 300 may be unsuccessful; at this time, only maintenance personnel or passers-by need manual help, such as slightly straightening the lifting plates 300, to complete the storage of the horizontal opening and closing plates 600, the vertical opening and closing plates 500 and the lifting plates 300. The operation is convenient, and untrained passers-by can also operate it by themselves, and it will hardly affect the traffic after the flood recedes.

[0051] The flood prevention and blocking device of this embodiment automatically raises the lifting plate 300 to block the flood when the flood comes. It has an extremely fast response speed and does not require manual activation. It can build a dam to block the flood in the area susceptible to the flood in the first time to reduce losses. The energy storage and triggering of the entire device do not require additional energy. It can be installed and used at any time without the need to configure pipelines. It has extremely low requirements for the installation environment and is highly practical.

[0052] Although the embodiments of the present invention are described in the specification, these embodiments are only for reference and should not limit the protection scope of the present invention. Various omissions, substitutions and changes within the scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A flood prevention device, characterized in that: It comprises a base (100), a driving assembly (200) and a lifting plate (300); The base (100) is provided with a cavity (110) for accommodating a driving assembly (200) and a vertical groove (120) for accommodating a lifting plate (300); a top grille (130) is provided at the top of the cavity (110) of the base (100); the lifting plate (300) is made of a plastic material or a wooden material; The driving assembly (200) comprises an energy storage tube (210), a piston (220) and a first spring (230). The piston (220) and the first spring (230) are both installed in the energy storage tube (210). The piston (220) compresses the first spring (230) to store energy. The energy storage tube (210) is connected to the vertical groove (120). When a flood comes, the first spring (230) drives the piston (220) to move horizontally. The piston (220) pushes the flood in the energy storage tube (210) into the vertical groove (120), driving the lifting plate (300) in the vertical groove (120) to rise upwards, thereby blocking the flood.

2. The flood barrier device according to claim 1, characterized in that: It also includes an energy storage component (400), the energy storage component (400) including a partition (410), a spiral blade (420), a reducer (430), a pulley (440), a belt (450) and a lever (460), the partition (410) being horizontally mounted in a cavity (110) of a base (100), the spiral blade (420) being mounted on the partition (410), the spiral blade (420) driving the pulley (440) to rotate via the reducer (430), the belt (450) being wound around the pulley (440), the lever (460) being fixed on the belt (450), and the end of the lever (460) being inserted into the energy storage tube (210); The spiral blade (420) is driven to rotate by the flowing rainwater of daily rainfall, driving the pulley (440) to rotate, and the belt (450) drives the lever (460) to translate in the energy storage tube (210) and drives the piston (220) to compress the first spring (230) to store energy.

3. The flood barrier device according to claim 2, characterized in that: The driving assembly (200) further comprises a lifting grille (240), a guide column (250) and a second spring (260); the guide column (250) passes through the partition (410); the lifting grille (240) is mounted on the top of the guide column (250); the bottom of the guide column (250) is fixedly connected to the energy storage tube (210); the second spring (260) is sleeved on the guide column (250); and the second spring (260) is located between the lifting grille (240) and the partition (410).

4. The flood barrier device according to claim 3, characterized in that: The driving assembly (200) further comprises a valve plate (270), the valve plate (270) being fixedly connected to the energy storage tube (210), and a first drainage hole (271) being provided on the valve plate (270); A second drainage hole (121) is provided at the bottom of the vertical groove (120); when the lifting grid (240) is in the highest position under the action of the second spring (260), the second drainage hole (121) is aligned with the first drainage hole (271).

5. The flood barrier device according to claim 4, characterized in that: The upper portion of the vertical groove (120) is provided with a section of inclined tooth surface (122), and the lower surface of the lifting plate (300) is provided with tooth surface patterns (310).

6. The flood barrier device according to claim 1, characterized in that: It also comprises a vertical opening and closing plate (500), on which a horizontal rotating shaft (510) is arranged, and the vertical opening and closing plate (500) is hinged to the lifting plate (300) via the horizontal rotating shaft (510), and a buoy (520) is arranged at the rotating end of the vertical opening and closing plate (500).

7. The flood barrier device according to claim 6, characterized in that: The lifting plate (300) is provided with a hydraulic oil chamber (320) and a hydraulic cylinder (330); an elastic membrane is provided on the surface of the hydraulic oil chamber (320); the hydraulic oil chamber (320) is in communication with the hydraulic cylinder (330); a rack (340) is provided on the telescopic rod of the hydraulic cylinder (330); a gear (530) is provided on the horizontal rotating shaft (510) of the vertical opening and closing plate (500); the gear (530) is meshed with the rack (340).

8. The flood barrier device according to claim 6, characterized in that: It also comprises a horizontal opening and closing plate (600), on which a vertical rotation shaft (610) is arranged, and the horizontal opening and closing plate (600) is hinged to the vertical opening and closing plate (500) via the vertical rotation shaft (610); and a guide groove (540) for guiding water flow between the horizontal opening and closing plate (600) and the vertical opening and closing plate (500) is arranged on the surface of the vertical opening and closing plate (500).

9. The flood barrier device according to claim 8, characterized in that: The vertical opening and closing plate (500) is provided with a first one-way flap (550), and the horizontal opening and closing plate (600) is provided with a second one-way flap (620).

10. The flood barrier device according to claim 9, characterized in that: A torsion spring (630) is provided on the vertical rotating shaft (610).

Images