CN211948234U - Automatic lifting type flood control structure - Google Patents

Abstract

The utility model relates to a flood control structure, and discloses an automatic lifting flood control structure, which comprises a retaining wall body and a lifting frame which is lifted or descended by buoyancy, wherein the retaining wall body is laid on a dike, the dike is provided with a flood control pipeline, and the flood control pipeline is communicated with a river channel; the one end of barricade body is relatively fixed and arranges, and the other end of barricade body extends and is the activity along the river course direction and arranges, inlays under the bottom of crane in the flood control pipeline, and the top of crane is connected with the other end of barricade body and arranges. When the water level is low, the flood control structure is not started; when the water level is high, the water flow of the river channel enters the flood control pipeline, the lifting frame gradually rises under the action of buoyancy, so that the other end of the retaining wall body swings upwards, the height of the dike is increased, and the flood control structure is automatically started; when the water level of the river channel is lowered again, the lifting frame automatically descends along with the lowering of the water level, and the other end of the retaining wall body automatically returns to the surface of the embankment; satisfy city river course's automatic flood control, realize automatic rising and adjustable carry out automatic flood control to city river course.

Description

Automatic lifting type flood control structure

Technical Field

The patent of the utility model relates to a technical field of flood control structure particularly, relates to automatic rising formula flood control structure.

Background

Flood control, that is, according to the law of flood and the characteristics of flood, various countermeasures and measures are researched and taken to prevent or alleviate flood disasters and guarantee the water conservancy work of social and economic development.

At present, flood control retaining walls are generally built on dikes for flood control work of urban rivers, but the flood control retaining walls are built too low to influence the flood control effect, and the urban landscape and the citizen hydrophilicity are influenced by the building too high.

The prior art has the defects that the adjustability is lacked in constructing the flood control retaining wall, the flood control effect cannot be guaranteed, and the influence on urban landscape and citizen hydrophilicity is avoided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic over-and-under type flood control structure aims at solving prior art, and city flood control barricade does not possess the problem of adjusting.

The utility model discloses a so realized, automatic over-and-under type flood control structure, including the barricade body and the crane that is ascending or descending by buoyancy, the barricade body is laid at the dyke, the dyke has the flood control pipeline, the flood control pipeline communicates the river course; the one end of barricade body is the relatively fixed and arranges, the other end of barricade body extends and is the activity along the river course direction and arranges, inlay under the bottom of crane in the flood control pipeline, the top of crane with the other end of barricade body is the connection and arranges.

Furthermore, the flood control pipeline comprises a communicating pipe and a flow guide pipe, one end of the communicating pipe is communicated with the river channel, the other end of the communicating pipe is communicated with the flow guide pipe, and the bottom of the lifting frame is embedded in the flow guide pipe; the communicating pipe is arranged in an upward arched N shape.

Furthermore, the draft tube comprises a longitudinal section and an inclined section, the longitudinal section is vertically arranged from top to bottom, and the bottom of the lifting frame is embedded in the longitudinal section; the other end of the communicating pipe is communicated with the inclined section, the inner end of the inclined section is communicated with the longitudinal section, and the outer end of the inclined section is gradually downwards and obliquely extended.

Furthermore, a flap valve is arranged at the outer end of the inclined section, and the outer end of the inclined section and one end of the communicating pipe are communicated or isolated by opening or closing the flap valve; when the water level is low, the flap valve is closed; when the water level of the river channel is lowered again, the flap valve is opened, the water level is lowered, and the lifting frame automatically descends.

Furthermore, the lifting frame comprises a lifting rod and a buoy, the top of the lifting rod is connected with the other end of the retaining wall body, and the bottom of the lifting rod is fixedly arranged with the buoy; the buoy is arranged in the longitudinal section and is arranged to ascend or descend under the action of buoyancy.

Furthermore, a fixing piece is arranged at the top of the longitudinal section; when the buoy rises to the top under the action of buoyancy, the buoy and the fixing piece are in fastening arrangement; the mounting has the stationary plane, along orientation river course direction, the stationary plane gradually down and be the slope and arrange, the flotation pontoon has the top face, along orientation river course direction, the top face of flotation pontoon gradually down and be the slope and arrange.

Furthermore, the fixing surface is provided with a plurality of fixing grooves which are arranged in a long strip shape and are arranged in parallel at intervals; the top end face of the buoy is provided with a plurality of convex strips which are arranged in a long strip shape, and the convex strips are arranged in parallel at intervals; when the buoy rises to the top under the action of buoyancy, the convex strips are respectively embedded into the fixing grooves.

Further, the bottom of the floating cylinder is provided with a bottom end surface, and the bottom end surface of the floating cylinder is horizontally arranged; when the water level is low, the buoy is located at the bottom of the longitudinal section, the bottom end face of the buoy is located at the joint of the longitudinal section and the inclined section, and a water inlet area is formed between the bottom end face of the buoy and the inclined section.

Furthermore, the automatic lifting type flood control structure comprises a hinge piece, wherein the hinge piece is arranged in a sealed and watertight manner, and one end of the retaining wall body is connected with the hinge piece; when the lifting frame is lifted by buoyancy, the other end of the retaining wall body is driven to swing upwards.

Furthermore, the retaining wall body is provided with a downward bottom end surface, and a positioning groove is formed in the bottom end surface of the retaining wall body and extends along the direction from one end of the retaining wall body to the other end of the retaining wall body; the top of crane with the constant head tank is the connection and arranges, and when receiving external force, the top of crane is followed the constant head tank is relative slip and arranges.

Compared with the prior art, the automatic lifting type flood control structure provided by the utility model has the advantages that as the flood control pipeline is communicated with the river channel, when the water level is low and does not exceed the water level set by the flood control pipeline, the automatic lifting type flood control structure is not started; when the water level is high, the water flow of the river channel enters the flood control pipeline and flows to the bottom of the lifting frame, the lifting frame gradually rises under the action of buoyancy, so that the other end of the retaining wall body swings upwards, the height of the dike is increased, the interception height of the river channel is realized, and flood control is realized, and at the moment, the automatic lifting type flood control structure is automatically started; when the water level of the river channel is lowered again, the water level is lowered, the lifting frame automatically descends along with the lowering of the water level, and the other end of the retaining wall body automatically returns to the surface of the dike; satisfy city river's automatic flood control to realize automatic rising and adjustable carry out automatic flood control to city river.

Drawings

Fig. 1 is a schematic structural view of an automatic lifting type flood control structure provided by the present invention at a low water level;

fig. 2 is a schematic structural view of the automatic lifting type flood protection structure provided by the present invention at a high water level;

fig. 3 is a schematic layout view of a flood protection pipeline of the automatic lifting flood protection structure provided by the present invention;

FIG. 4 is an enlarged schematic view of part A provided by the present invention;

fig. 5 is a schematic sectional view of the crane of the automatic lifting flood protection structure provided by the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc., indicating directions or positional relationships based on those shown in the drawings, it is merely for convenience of description and simplicity of description, but it is not intended to indicate or imply that the referenced devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms in the drawings describing the positional relationships are merely used for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art will understand the specific meanings of the terms according to specific situations.

Referring to fig. 1-5, the preferred embodiment of the present invention is shown.

An automatic lifting type flood control structure comprises a retaining wall body 10 and a lifting frame 20, wherein the lifting frame 20 is arranged in a lifting or descending manner under the action of buoyancy, the retaining wall body 10 is laid on an embankment 30, the embankment 30 is provided with a flood control pipeline 40, and the flood control pipeline 40 is communicated with a river channel 50; the one end of barricade body 10 is relatively fixed and arranges, and the other end of barricade body 10 extends and is the activity along 50 directions in river course and arranges, inlays in flood control pipeline 40 under the bottom of crane 20, and the top of crane 20 is connected with the other end of barricade body 10 and arranges.

In the automatic lifting type flood control structure, as the flood control pipeline 40 is communicated with the river channel 50, when the water level is low and does not exceed the water level set by the flood control pipeline 40, the automatic lifting type flood control structure is not started; when the water level is high, the water flow of the river channel 50 enters the flood control pipeline 40 and flows to the bottom of the lifting frame 20, the lifting frame 20 gradually rises under the action of buoyancy, so that the other end of the retaining wall body 10 swings upwards, the height of the embankment 30 is increased, the interception height of the river channel 50 is realized, and flood control is realized, and at the moment, the automatic lifting type flood control structure is automatically started; when the water level of the river 50 is lowered again, the water level is lowered, the lifting frame 20 automatically descends along with the lowering of the water level, and the other end of the retaining wall body 10 automatically returns to the surface of the embankment 30; satisfy city river course 50's automatic flood control to realize automatic rising and adjustable carry out automatic flood control to city river course 50.

The flood control pipeline 40 comprises a communicating pipe 41 and a flow guide pipe, one end of the communicating pipe 41 is communicated with the river channel 50, the other end of the communicating pipe 41 is communicated with the flow guide pipe, and the bottom of the lifting frame 20 is embedded in the flow guide pipe; the communicating pipe 41 is arranged in an upwardly arched n-shape; like this, help increasing the area occupied of communicating pipe 41, the mediation volume of increase rivers, increase flood control effect, simultaneously, be convenient for set up the flood control water level, that is to say, when the rivers that get into communicating pipe 41 surpass the highest point of communicating pipe 41, the flood control structure just opens, when the realization needs the flood control, the flood control structure just starts.

The draft tube comprises a longitudinal section 42 and an inclined section 43, the longitudinal section 42 is vertically arranged along the top-down direction, and the bottom of the lifting frame 20 is embedded in the longitudinal section 42; like this, vertical section 42 plays the guide effect to crane 20's removal, simultaneously, when making crane 20 receive the superficial removal power, the effort is vertical, reduces the loss of buoyancy and reduces crane 20 and removes the wobbling nature that removes, the removal of crane 20 of being convenient for.

The other end of the communicating pipe 41 is communicated with the inclined section 43, and the water flow entering the communicating pipe 41 flows to the inclined section 43 and then flows to the longitudinal section 42 to act on the lifting frame 20; practice multilevel reposition of redundant personnel plays the effect of changing into simultaneously, avoids rivers buoyancy to urge crane 20 suddenly, strengthens crane 20's mobility stability.

The inner end of the inclined section 43 is communicated with the longitudinal section 42, and the outer end of the inclined section 43 is gradually downwards and obliquely extended; reduce the silt and deposit in the honeycomb duct, also be convenient for the washing of honeycomb duct, maintain.

The outer end of the inclined section 43 is provided with a flap valve 60, and the outer end of the inclined section 43 is communicated or isolated with one end of the communicating pipe 41 by opening or closing the flap valve 60; when the water level is low, the flap valve 60 is closed; when the water level of the river channel 50 is high, the water flow of the river channel 50 enters the longitudinal section 42 through the communicating pipe 41, the lifting frame 20 is arranged in a rising mode under the action of buoyancy, and after the water level of the river channel 50 is lowered again, the flap door 60 is opened, the water level is lowered, and the lifting frame 20 is automatically lowered.

Under the action of the flap valve 60, when the water level of the river channel 50 is reduced again, the flood control pipeline 40 conveniently flows back into the river channel 50, the restoration of the flood control structure is learned, and the automatic flood control of the flood control structure is realized; meanwhile, the flap valve 60 effectively prevents the water flow in the river channel 50 from flowing backward to the flow guide pipe, so that the false start of the flood control structure is caused.

The flap valve 60 comprises a valve seat, a valve plate, a water sealing ring and a hinge; the valve seat is fixedly arranged, the valve plate is hinged with the valve seat, and the flap valve 60 is opened or closed through the swinging of the valve plate; the water-proof effect is realized through the water sealing ring, the water sealing ring can be arranged on the valve seat or the valve plate, or the water sealing rings are arranged on the valve seat and the valve plate; the hinge is driven to realize the opening or closing of the valve plate.

The flap valve 60 may be made of various materials such as stainless steel, cast iron, profile steel, and composite material (glass fiber reinforced plastic).

The flap valve 60 is in a circular or square shape; the flapper 60 of different shapes is selected according to the installation space of the flood protection passage.

In this embodiment, the lifting frame 20 includes a lifting rod 22 and a float 21, the top of the lifting rod 22 is connected with the other end of the retaining wall body 10, and the bottom of the lifting rod 22 is fixed with the float 21; buoy 21 is arranged in longitudinal section 42, buoy 21 is in ascending or descending arrangement under the action of buoyancy; thus, the buoy 21 ascends or descends under the action of buoyancy force to drive the lifting rod 22 to ascend or descend, so that the other end of the retaining wall body 10 is driven to swing upwards or reset downwards, the defense height is adjusted, and automatic flood control is realized.

Buoy 21 is the cavity and arranges, reduces buoy 21's dead weight, and the buoyancy of being convenient for acts on buoy 21, and the other end that the buoy 21 of being convenient for rises the drive barricade body 10 swings up, realizes automatic flood control.

The elevating rods 22 are arranged longitudinally, and the elevating rods 22 have a plurality of through openings, so that when the water level of the river 50 rises above the embankment 30, water flows to the retaining wall body 10 through the through openings, and is blocked by the retaining wall body 10; thus, the impact of the water flow on the lifting rod 22 is reduced under the action of each through opening, and the lifting rod 22 is protected.

The top of the longitudinal section 42 is provided with a fixing piece; when buoy 21 rises to the top by buoyancy, buoy 21 is in fastening arrangement with the fixing piece; under the effect of mounting, avoid the too high flotation pontoon 21 that causes of water level to break away from vertical section 42 to avoid crane 20 to break away from vertical section 42, guarantee crane 20's follow-up resetting, realize flood control structure's cycle work, increase flood control structure's life.

The fixing piece is provided with a fixing surface, the fixing surface is gradually downward and obliquely arranged along the direction towards the river channel 50, the buoy 21 is provided with a top end surface, and the top end surface of the buoy 21 is gradually downward and obliquely arranged along the direction towards the river channel 50; by the arrangement, the fixing piece is matched with the floating pontoon 21 conveniently, and meanwhile, the more the floating pontoon 21 rises, the larger the resistance of the fixing piece is, and the resistance is gradually increased, so that the damage to the floating pontoon 21 is reduced, and the service life of the floating pontoon 21 is prolonged.

In addition, under the matching action of the fixed surface and the top end surface of the float 21, the float 21 is convenient to reset.

Furthermore, the fixing surface is provided with a plurality of fixing grooves which are arranged in a long strip shape, and the plurality of fixing grooves are arranged in parallel at intervals; the top end face of the buoy 21 is provided with a plurality of convex strips which are arranged in a long strip shape, and the convex strips are arranged in parallel at intervals; when the buoy 21 rises to the top by buoyancy, each convex strip is respectively embedded into each fixed groove; under the mating reaction of fixed slot and sand grip, the frictional force of increase fixed surface and flotation pontoon 21's top end face improves the resistance of mounting, and when the water level of being convenient for simultaneously reduced, flotation pontoon 21 reset.

The bottom of the float 21 is provided with a bottom end surface, and the bottom end surface of the float 21 is horizontally arranged; when the water level is low, the float bowl 21 is located at the bottom of the longitudinal section 42, the bottom end surface of the float bowl 21 is located at the joint of the longitudinal section 42 and the inclined section 43, and a water inlet area is formed between the bottom end surface of the float bowl 21 and the inclined section 43; like this, when the water level rose, river course 50's rivers passed through communicating pipe 41 and got into slope section 43, reentrant entering region, then exerted buoyancy on flotation pontoon 21, made flotation pontoon 21 rise more steadily, simultaneously, played the cushioning effect, slowed down the velocity of flow of rivers, strengthened the stationarity that flotation pontoon 21 rose.

The automatic lifting type flood control structure comprises the hinge pieces, the hinge pieces are arranged in a sealed and waterproof mode, the hinge pieces are prevented from being soaked when the water level rises, the normal work of the hinge pieces is prevented from being influenced, and therefore the service life of the hinge pieces is prolonged.

One end of the retaining wall body 10 is connected with the hinge piece; when the lifting frame 20 is lifted by buoyancy, the other end of the retaining wall body 10 is driven to swing upwards; under the effect of hinge spare, realize the relatively fixed of one end of barricade body 10 to fix a position the restriction when swinging up to the other end of barricade body 10, guarantee the interception of the rising water level of the other end of barricade body 10, realize the flood control.

The hinge piece is equipped with the hydraulic pump, realizes that the hinge piece is to the relatively fixed of the one end swing position up of barricade body 10, satisfies barricade body 10 and to the blockking of rivers, plays the flood control effect.

The hinge part comprises a first hinge part and a second hinge part, the first hinge part comprises a support (3) and a hinge arm rotatably mounted on the support, the second hinge part has a hinge slot for the insertion of the distal end of the hinge arm, a locking mechanism is provided to effect locking of the hinge arm on the second hinge part, the locking mechanism comprises a locking pawl preloaded into a locking position, the locking pawl projecting from a surface on the hinge arm in a mounting position prior to the locking position.

The retaining wall body 10 is provided with a downward bottom end surface, and a positioning groove is formed on the bottom end surface of the retaining wall body 10 and extends along the direction from one end of the retaining wall body 10 to the other end; the top of the lifting frame 20 is connected with the positioning groove, and when external force is applied, the top of the lifting frame 20 is arranged along the positioning groove in a relative sliding manner; like this, when the water level of river course 50 rose, buoyancy made crane 20 rise, and crane 20's top drive barricade body 10's the other end swings up, and simultaneously, crane 20's the relative constant head tank in top slides, and when buoy 21 rose to the highest position and the mounting is locked, crane 20's top slided to the tail end of constant head tank, and like this, barricade body 10's the other end swings up has bigger swing region, satisfies the flood control demand of bigger water level.

Furthermore, the positioning groove comprises two groove walls which are oppositely arranged, the groove walls are arranged in an extending manner along the direction from one end to the other end of the retaining wall body 10, the groove walls are provided with notches, the notches are arranged in an extending manner along the direction from one end to the other end of the retaining wall body 10, the top of the lifting frame 20 is provided with two moving blocks, the two moving blocks are respectively embedded into the notches, the moving blocks are provided with enlarged parts, the enlarged parts are larger than the calibers of the notches, and the moving blocks penetrate through the; like this, under the cooperation of notch and movable block, avoid the movable block to break away from the notch, guarantee that the top of crane 20 is relative slip along the constant head tank and arranges.

The constant head tank has a plurality of setpoint, and each setpoint is equipped with respectively and accepts the piece, and the top of crane 20 is equipped with the transmitter, and transmitter transmitted signal accepts the transmitter transmitted signal, and the signal feedback that will accept is to backstage or high in the clouds to judge the slide position at crane 20's top, thereby the rising position of long-range inspection water level improves flood control inspection safety and real time monitoring.

The retaining wall body 10 is provided with a reinforcing rod, the bottom end of the reinforcing rod is hinged with one end of the retaining wall body 10, and the top end of the reinforcing rod is movably arranged; when the other end of the retaining wall body 10 swings upwards, and the top of the lifting frame 20 slides in the direction departing from the other end of the retaining wall body 10, the top end of the reinforcing rod loses extrusion force, and the top end of the reinforcing rod swings in the direction departing from the retaining wall body 10 until the top end of the reinforcing rod abuts against the lifting rod 22; thereby reinforcing the lifter bar 22.

In addition, when the water level drops again, the lifting rod 22 drops, the top end of the reinforcing rod is separated from the lifting rod 22, and the other end of the retaining wall body 10 is reset downwards, so that the top end of the reinforcing rod is swung and reset towards the retaining wall body 10 until the top end of the reinforcing rod is attached to the retaining wall body 10.

Along top-down direction, barricade body 10 has the barricade height, and along the one end to the other end direction of barricade body 10, the barricade height of barricade body 10 increases gradually, and like this, barricade body 10 has great dead weight to rivers, improves the flood control effect of barricade body 10, and when the water level descends simultaneously, under the effect of dead weight, the other end of barricade body 10 of being convenient for swings down and resets, and the flotation pontoon 21 of being convenient for resets down simultaneously avoids flotation pontoon 21 and mounting card to die.

The automatic lifting type flood control structure comprises a floating platform, wherein the floating platform is positioned above the dike 30 and is in upward floating arrangement under the action of buoyancy; the lifting rod 22 penetrates through the floating platform, and a height sensor is arranged inside the floating platform and is in signal transmission with the background; when the water level exceeds the dike 30, the floating platform floats upwards along with the rising of the water level, and the height of the water level is conveniently monitored by the background in real time according to the height position of the floating platform.

In addition, the height sensor and the transmitting part of the floating platform are matched with the receiving part, data comparison is carried out, and the accuracy of height monitoring of the water level is improved.

The dike 30 is provided with the alignment grooves, the floating platforms and the alignment grooves are correspondingly arranged up and down, and when the water level is low, the floating platforms are positioned inside the alignment grooves, so that the retaining wall bodies 10 are horizontally laid on the dike 30, urban landscape is prevented from being influenced, and convenience is brought to citizens to be hydrophilic.

In addition, when the water level drops again, the floating platform sinks along with the drop of the water level and is embedded into the alignment groove; thereby facilitating the lowering of the lifter 22 and enhancing the lowering stability of the lifter 22.

The automatic lifting type flood control structure comprises a retracting motor and a retracting rope, the dike 30 is provided with a retracting groove, the retracting rope is arranged in the retracting groove, and the retracting rope penetrates through the retracting groove; one end of the retracting rope is connected with the retaining wall body 10, and the other end of the retracting rope is connected with the retracting motor; when the water level is low, the rope is released, so that the rope can not influence the swing of the other end of the retaining wall body 10; when the water level rises, if the retaining wall body 10 does not rise or the lifting frame 20 is blocked and does not rise, the retraction motor can be started to retract and release the rope, and acting force is applied to the retaining wall body 10, so that the other end of the retaining wall body 10 can swing upwards conveniently.

In addition, when the water level descends again, the lifting frame 20 loses buoyancy, the retracting motor rotates reversely, the retracting rope is gradually loosened, the other end of the retaining wall body 10 gradually descends, and the phenomenon that the other end of the retaining wall body 10 descends rapidly to damage the retaining wall body 10 due to the fact that water flow withdraws through a block is avoided, and the retaining wall body 10 is protected.

When the water level drops again, the retracting motor rotates reversely, and the retracting rope is gradually loosened until the retaining wall body 10 is tiled on the dike 30; thus, the cooperation of the crane 20 with the retaining wall body 10 is prevented from being affected.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The automatic lifting type flood control structure is characterized by comprising a retaining wall body and a lifting frame which ascends or descends under the action of buoyancy, wherein the retaining wall body is laid on an embankment, the embankment is provided with a flood control pipeline, and the flood control pipeline is communicated with a river channel; the one end of barricade body is the relatively fixed and arranges, the other end of barricade body extends and is the activity along the river course direction and arranges, inlay under the bottom of crane in the flood control pipeline, the top of crane with the other end of barricade body is the connection and arranges.

2. The automatic lifting type flood control structure according to claim 1, wherein the flood control pipeline comprises a communication pipe and a guide pipe, one end of the communication pipe is communicated with a river channel, the other end of the communication pipe is communicated with the guide pipe, and the bottom of the lifting frame is embedded in the guide pipe; the communicating pipe is arranged in an upward arched N shape.

3. The automatic lifting flood protection structure according to claim 2, wherein the flow guide pipe comprises a longitudinal section and an inclined section, the longitudinal section is vertically arranged from top to bottom, and the bottom of the lifting frame is embedded in the longitudinal section; the other end of the communicating pipe is communicated with the inclined section, the inner end of the inclined section is communicated with the longitudinal section, and the outer end of the inclined section is gradually downwards and obliquely extended.

4. The automatic lifting type flood control structure according to claim 3, wherein a flap valve is arranged at the outer end of the inclined section, and the outer end of the inclined section is communicated or isolated with one end of the communicating pipe by opening or closing the flap valve; when the water level is low, the flap valve is closed; when the water level of the river channel is lowered again, the flap valve is opened, the water level is lowered, and the lifting frame automatically descends.

5. The automatic lifting flood control structure according to claim 3 or 4, wherein the lifting frame comprises a lifting rod and a buoy, the top of the lifting rod is connected with the other end of the retaining wall body, and the bottom of the lifting rod is fixedly arranged with the buoy; the buoy is arranged in the longitudinal section and is arranged to ascend or descend under the action of buoyancy.

6. The automatically elevating flood protection structure according to claim 5, wherein a fixing member is provided on the top of said longitudinal section; when the buoy rises to the top under the action of buoyancy, the buoy and the fixing piece are in fastening arrangement; the mounting has the stationary plane, along orientation river course direction, the stationary plane gradually down and be the slope and arrange, the flotation pontoon has the top face, along orientation river course direction, the top face of flotation pontoon gradually down and be the slope and arrange.

7. The automatic lifting flood protection structure according to claim 6, wherein the fixing surface has a plurality of fixing grooves, the fixing grooves are arranged in a long strip shape, and the plurality of fixing grooves are arranged in parallel at intervals; the top end face of the buoy is provided with a plurality of convex strips which are arranged in a long strip shape, and the convex strips are arranged in parallel at intervals; when the buoy rises to the top under the action of buoyancy, the convex strips are respectively embedded into the fixing grooves.

8. The automatic lifting flood protection structure according to claim 6 or 7, wherein the bottom of the float bowl is provided with a bottom end surface, and the bottom end surface of the float bowl is horizontally arranged; when the water level is low, the buoy is located at the bottom of the longitudinal section, the bottom end face of the buoy is located at the joint of the longitudinal section and the inclined section, and a water inlet area is formed between the bottom end face of the buoy and the inclined section.

9. The automatic lifting flood protection structure according to any one of claims 1 to 4, wherein the automatic lifting flood protection structure comprises a hinge member, the hinge member is arranged in a sealed and watertight manner, and one end of the retaining wall body is connected with the hinge member; when the lifting frame is lifted by buoyancy, the other end of the retaining wall body is driven to swing upwards.

10. The automatic lifting flood protection structure according to claim 9, wherein the retaining wall body has a downward bottom surface, and positioning grooves are formed on the bottom surface of the retaining wall body and extend from one end of the retaining wall body to the other end of the retaining wall body; the top of crane with the constant head tank is the connection and arranges, and when receiving external force, the top of crane is followed the constant head tank is relative slip and arranges.

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