Automatically rising flood prevention system and flood prevention method based on water impact force

Abstract

The present invention belongs to the technical field of flood control and waterlogging prevention at ground entrances and exits, and particularly relates to an automatic lifting flood prevention system and a flood prevention method based on water impact force. The automatic lifting flood prevention system comprises: a building structure comprises a civil engineering structure buried below the ground entrance and exit and a carbon fiber water retaining plate device that is sealed and slidably configured in the civil engineering structure; a first power system comprises a hydraulic cylinder lifting device for driving the carbon fiber water retaining plate device to perform lifting and lowering movements, a first water inlet system for supplying water to the hydraulic cylinder lifting device, and an adjustable pressure spray water pipe device connected between the first water inlet system and the hydraulic cylinder lifting device; a second power system comprises an eccentric pulling device for driving the carbon fiber water retaining plate device to perform lifting and lowering movements, and a second water inlet system for supplying water to the eccentric pulling device. The present invention does not require manual operation or an electric power system, and is an automatic lifting system with dual power of lifting and pulling, and has the advantages of safety, reliability, quick response, automatic intelligence, and simple structure.

Description

Technical Field

[0001] The invention belongs to the technical field of flood prevention and waterlogging prevention at ground entrances and exits, and in particular relates to an automatic rising flood prevention system and a flood prevention method based on water impact force. Background Art

[0002] In 2021, many parts of the country and even the world suffered from extremely heavy rainfall. Severe floods and waterlogging disasters occurred in many parts of my country. Waterlogging on the site and flooding in the underground space caused serious casualties and economic losses, and also had a serious impact on people's lives. In particular, urban transportation spaces that undertake passenger transport functions, municipal supporting projects of railway stations, railway stations, subway stations, railway power houses, dispatching command centers, etc. were severely damaged in flood disasters. Ground entrances and exits are the key parts and weak links of flood control and waterlogging prevention of these important projects. Traditional flood prevention baffles are mainly installed manually. If they are not installed in time, the best time for rescue will be missed, causing floods and rainwater to enter the house. Therefore, the automatic rising flood prevention system can respond in time, which is particularly important in the process of flood control and waterlogging prevention.

[0003] At present, there are semi-automatic flood prevention devices for rail transit entrances and exits in the field of flood prevention technology. For example, patent CN212248075U discloses a semi-automatic flood prevention device for rail transit entrances and exits, which requires staff to manually start the pneumatic support rods to block the flood after arriving at the entrance and exit.

[0004] Automatic flood prevention devices for subway underground stations, such as patent CN113373868, disclose a water-powered automatic lifting and flood prevention system, which is set in the water collection well and intercepting ditch of the entrance and exit escalator and is lifted and lowered by water buoyancy. The response time is slow and the flooding range is large.

[0005] The flood prevention facilities used for ground entrances and exits are still relatively traditional, using sandbag stacking or movable flood prevention baffles. The storage of flood prevention facilities requires a fixed space and mainly relies on manual installation, which has low work efficiency and poor emergency response.

[0006] Therefore, based on these problems, it is of great practical significance to provide an automatic lifting system and flood prevention method based on water impact force that does not require manual operation or power system, has a dual-power automatic lifting system for jacking and pulling, and has the advantages of safety, reliability, responsiveness, automatic intelligence, easy maintenance, and simple structure. Summary of the invention

[0007] In order to overcome the problems existing in the related technologies, the present invention provides an automatic lifting and flood prevention system based on water impact force, with the goal of green, intelligent and timely flood prevention and waterlogging prevention facilities at the entrances and exits. It does not require manual operation or power system, and has a dual-power automatic lifting device for lifting and pulling. It has the advantages of safety, reliability, quick response, automatic intelligence, easy maintenance, and simple structure.

[0008] The technical solution adopted by the present invention to solve this problem is:

[0009] Automatically rising flood prevention system based on water impact, including:

[0010] The building structure includes a civil engineering structure buried below a ground entrance and a carbon fiber water retaining plate device sealed and slidably arranged in the civil engineering structure;

[0011] The first power system includes a hydraulic cylinder lifting device for driving the carbon fiber water retaining plate device to perform lifting motion, a first water inlet system for supplying water to the hydraulic cylinder lifting device, and an adjustable pressure spraying water pipe device connected between the first water inlet system and the hydraulic cylinder lifting device;

[0012] The second power system includes an eccentric pulling device for driving the carbon fiber water retaining plate device to perform lifting motion and a second water inlet system for supplying water to the eccentric pulling device.

[0013] Preferably, the civil engineering structure is a concrete structure buried below the ground entrance and exit, including a structural cavity, a through-length channel, a conical structure prefabricated waterproof rubber strip, a rotating cover plate, an inspection cover plate, an inclined concrete platform, a limit slot, an arc-shaped rubber baffle, a fixed pulley embedded part A, a fixed pulley embedded part B, and a hydraulic cylinder lifting device embedded part.

[0014] Specifically, the civil engineering structure includes structural cavities symmetrically arranged under the ground at both ends of the ground entrance and exit, and the structural cavity is used to arrange the water inlet system, adjustable pressure jet water pipe device, hydraulic cylinder lifting device, eccentric pulling device, carbon fiber water retaining plate device, etc. The outline size of the structural cavity is 850mm*2400mm*1200mm (the elevation at the ground entrance and exit is ±0.000).

[0015] Further preferably, the bottom of the structural cavity is provided with an inclined concrete platform for placing the polygonal eccentric barrel and a hydraulic cylinder lifting device embedded part for connecting the hydraulic cylinder lifting device. The inclined concrete platform is arranged at the bottom of the cavity, with a width of 1000mm, and is used to place the polygonal eccentric barrel. An 800mm wide and 20mm deep limit groove and an arc-shaped rubber baffle are provided on it to limit the rolling direction of the polygonal eccentric barrel.

[0016] Further preferably, the fixed pulley embedded part A, the fixed pulley embedded part B and other embedded parts are for fixing the power system device.

[0017] Further preferably, an inspection cover is provided above the structural cavity, and the inspection cover is symmetrically arranged on the ground with a size of 900mm*900mm.

[0018] Further preferably, a through-length channel for placing a carbon fiber water retaining plate device is opened between the two structural cavities, and the lower part of the channel top structural plate (channel top concrete structural plate) around the through-length channel is a conical structure with a width of 50mm to 150mm, and conical prefabricated waterproof strips are provided on both sides of the conical structure.

[0019] Preferably, a rotating cover is provided above the through-length channel, and the rotating cover is arranged on the through-length channel and flush with the ground decoration surface layer. When the carbon fiber water retaining plate is lifted, the rotating cover is lifted up and rotated to stand on the water-facing side, playing a role of sealing and waterproofing.

[0020] Further preferably, the carbon fiber water retaining plate device includes an aluminum honeycomb carbon fiber plate, a titanium alloy U-shaped slot, a ribbed shoe plate, an aluminum slider, an optical axis guide rail, a retractable water stop, and a pre-buried U-shaped vertical channel.

[0021] Specifically, the carbon fiber water retaining plate device includes:

[0022] Aluminum honeycomb carbon fiber plate, sealed and slidably arranged in the through-length channel, with titanium alloy U-shaped slots fixed on both sides and ribbed boots fixed on the bottom;

[0023] The embedded U-shaped vertical channel is symmetrically arranged on the concrete structure on both sides of the through-length channel, and the embedded U-shaped vertical channel is provided with an optical axis guide rail and a retractable water stop;

[0024] The aluminum slider is fixed on the titanium alloy U-shaped slot on both sides of the aluminum honeycomb carbon fiber plate, and is connected to the optical axis guide rail. The optical axis guide rail is anchored in the pre-buried U-shaped vertical groove on the walls at both ends. The retractable waterstop is installed in the pre-buried U-shaped vertical groove. When the carbon fiber water retaining plate automatically rises to the set value, the retractable waterstop switch will be pulled up to pop out and press it tightly to the carbon fiber water retaining plate. The bottom ribbed boot plate is tightly compacted with the conical structure prefabricated waterproof strip, and the overall sealing performance is good, which can block floods outside the entrance and exit.

[0025] Further preferably, the first power system includes a first water inlet system, an adjustable pressure water jetting pipe device and a hydraulic cylinder lifting device.

[0026] Further preferably, the hydraulic cylinder lifting device is symmetrically fixed on the hydraulic cylinder lifting device embedded parts at the bottom of the two structural cavities, including a water chamber, a push rod, a piston, a blocking ring, a water inlet pipe, an outer wall of the cylinder body, an exhaust hole, a scissors brace, a pin shaft, an upper connecting plate, an external thread, a horizontal connecting rod, and a trapezoidal block inside the cylinder.

[0027] Specifically, the hydraulic cylinder lifting device includes:

[0028] A hydraulic cylinder body, which is divided into a first water chamber and a second water chamber by a blocking ring, the blocking ring is welded to the inner wall of the hydraulic cylinder body, a plurality of exhaust holes are symmetrically arranged along the outer wall of the cylinder body in the second water chamber, preferably four exhaust holes, and a water inlet pipe is arranged at the bottom of the outer wall of the cylinder body;

[0029] A piston is arranged in the hydraulic cylinder, a push rod is arranged at the upper end of the piston, and a conical surface is arranged between the blocking ring and the piston to seal tightly;

[0030] An in-cylinder trapezoidal block, which is arranged at the bottom of the hydraulic cylinder body, with its inclined side facing the water inlet pipe;

[0031] The scissors brace is fixed between the upper connecting plate and the hydraulic cylinder body through a pin shaft, and includes a first scissors brace and a second scissors brace arranged in parallel, a horizontal tie rod is arranged between the first scissors brace and the second scissors brace, the upper end of the scissors brace is fixed with an upper connecting plate through a pin shaft, the upper connecting plate is welded to the ribbed boot plate, the lower end of the scissors brace is fixed to the top of the hydraulic cylinder body through a pin shaft, and the push rod is connected to the horizontal connecting rod. In addition, a cylinder trapezoidal block is also provided at the bottom of the hydraulic cylinder body, and the cylinder trapezoidal block is arranged at the bottom of the hydraulic cylinder body as a piston non-working initial state support and a water flow diversion guide component; when the water flow enters the hydraulic cylinder jacking device, the jacking and lifting automatic flood prevention system can be completed.

[0032] Further preferably, the first water inlet system includes a first water inlet arranged below the ground entrance and exit, a first stainless steel filter arranged on the first water inlet, and a first water inlet pipe connected to the first water inlet, wherein: the first water inlet is arranged on the step riser 150mm below the entrance and exit positive and negative zero, the water inlet has a diameter of 50mm, and a stainless steel filter is arranged at the mouth to prevent foreign objects from entering; the first water inlet pipe is buried under the entrance and exit steps and arranged obliquely in the structural cavity, and is connected to an adjustable pressure spray water pipe device.

[0033] Further preferably, the adjustable pressure jet water pipe device, as a trigger device for the hydraulic cylinder lifting, is arranged at the bottom of the structural cavity, and includes a variable diameter inner wall tube, in which the throat is fixed at the center of the tube by a fixed bracket, and the two ends of the variable diameter inner wall tube are respectively connected to the first water inlet pipe and the water inlet pipe of the hydraulic cylinder lifting device. The water flow can pass through the variable diameter inner wall and the throat device to form a water impact force, thereby quickly triggering the hydraulic cylinder lifting device.

[0034] Further preferably, the second power system includes a water inlet system and an eccentric pulling device.

[0035] Further preferably, the eccentric pulling device is symmetrically arranged on the inclined concrete platform in the two structural cavities, and includes a fixed pulley, a polygonal eccentric barrel, a galvanized high-strength steel wire rope, a wire rope winding groove, an anti-winding water pipe interface, an anti-winding water pipe, and a reducing water pipe connector.

[0036] Specifically, the eccentric pulling device comprises:

[0037] A polygonal eccentric barrel is placed on an inclined concrete platform, and a central surface of the polygonal eccentric barrel is provided with a wire rope winding groove for winding a galvanized high-strength steel wire rope;

[0038] The anti-entanglement water pipe structure comprises an anti-entanglement water pipe interface arranged on the side of the polygonal eccentric barrel, an anti-entanglement water pipe and a different-diameter water pipe connector connected to the anti-entanglement water pipe interface in sequence, and water flows into the polygonal eccentric barrel through the different-diameter water pipe connector, the anti-entanglement water pipe and the anti-entanglement water pipe interface;

[0039] The pulley block comprises a first fixed pulley fixed to the top of the embedded U-shaped vertical channel through a fixed pulley embedded part A, and a second fixed pulley fixed to the lower part of the embedded U-shaped vertical channel through a fixed pulley embedded part B, and the diameter of the fixed pulley is 50 mm;

[0040] The galvanized high-strength steel wire rope is wound around the first fixed pulley, the second fixed pulley, and the wire rope winding groove in sequence. One end of the galvanized high-strength steel wire rope is fixed to the polygonal eccentric barrel, and the other end is fixed to the carbon fiber water retaining plate device. The polygonal eccentric barrel is wound around the pulley block through the galvanized high-strength steel wire rope and connected to the carbon fiber water retaining plate device. When the water flows into the eccentric pulling device, the automatic anti-flooding system can be lifted up.

[0041] Further preferably, the second water inlet system includes a second water inlet provided below the ground entrance and exit, a first stainless steel filter provided on the second water inlet, and a second water inlet pipe connected to the second water inlet. The second water inlet is provided on the step kick surface 150 mm below the entrance and exit, the water inlet has a diameter of 50 mm, and a stainless steel filter is provided at the mouth to prevent foreign matter from entering. The second water inlet pipe is buried under the entrance and exit steps, and the second water inlet pipe is connected to a different diameter water pipe connector to be connected to the eccentric pulling device.

[0042] Further preferably, the table top of the inclined concrete table has three angles, including a gently sloping table top (with an angle of 30 degrees to the ground), a steeply sloping table top (with an angle of 55 degrees to the ground) and a horizontal table top connected in sequence, and the inclined concrete table is provided with a deep limiting groove for limiting the rolling direction of the polygonal eccentric barrel and an arc-shaped rubber baffle for limiting the initial position of the polygonal eccentric barrel.

[0043] The second invention object of the present invention is to provide an automatic lifting flood prevention method based on water impact force, comprising the following steps:

[0044] Step 1: When the outdoor floor water reaches the set threshold, execute step 2 and / or step 3;

[0045] Step 2: The accumulated water flows into the first water inlet system through the first water inlet. The water flow entering through the first water inlet system will first pass through the adjustable pressure jet water pipe device. After the water inlet pipe of the hydraulic cylinder lifting device is connected to the high-pressure water flow pressurized by the adjustable pressure jet water pipe device, the water flow enters the first water chamber, pushing the piston to move upward, providing an upward lifting force for the carbon fiber water retaining plate device, and continuing to execute step 4;

[0046] Step 3: The accumulated water flows into the second water inlet system through the second water inlet, and flows into the polygonal eccentric barrel of the eccentric pulling device through the second water inlet system and the anti-winding water pipe. When the water volume in the polygonal eccentric barrel reaches the calculated volume, due to the eccentric effect of the combined force of the water body in the polygonal eccentric barrel, the polygonal eccentric barrel passes over the arc-shaped rubber baffle and rolls along the limit card groove; at this time, the galvanized high-strength steel wire rope wound in the steel wire rope winding groove begins to wind around the polygonal eccentric barrel, and the rope tension generated by the winding provides an upward pulling force to the carbon fiber water retaining plate device through the pulley block, and step 4 is executed;

[0047] Step 4: When the first power system and / or the second power system provide upward power for the carbon fiber water retaining plate device, the aluminum honeycomb carbon fiber plate moves upward in the full-length groove, and the aluminum slider, the optical axis guide rail, and the embedded U-shaped vertical groove play a guiding role;

[0048] Step 5: When the aluminum honeycomb carbon fiber panel automatically rises to the set value, the retractable waterstop switch will be pulled up to make it pop out and press tightly to the aluminum honeycomb carbon fiber panel, and the ribbed boot plate at the bottom of the aluminum honeycomb carbon fiber panel is tightly compacted with the conical structure prefabricated waterproof strip to ensure the overall sealing and intercept the flood outside the ground entrance and exit.

[0049] The advantages and positive effects of the present invention are:

[0050] 1. This system includes a building structure, a first power system and a second power system. It requires little modification to the existing structure, has a simple structure, is easy to maintain, and has good feasibility.

[0051] 2. The present invention adopts a dual-power automatic lifting device of a first power system and a second power system to ensure that the carbon fiber water retaining plate device is quickly raised, and ensures stability and sealing after raising to prevent flood invasion.

[0052] 3. This system does not require manual operation or power system. It has dual-power automatic lifting devices for jacking and pulling, and has the advantages of safety, reliability, automatic and intelligent.

[0053] 4. In the present invention, the overall structure of the carbon fiber water retaining plate device is light in weight, strong in strength, and corrosion-resistant, and it can be raised quickly, conveniently, and reliably, and it has good sealing performance, and it can block floods outside the entrance and exit.

[0054] 5. In the present invention, the lifting height of the carbon fiber water retaining plate is set to 0.6 meters, which meets the requirements of ergonomics and the safety of the height of the rising flood level.

[0055] 6. In the present invention, when the carbon fiber water retaining plate automatically rises to the set value, the retractable water stop belt switch will be pulled up, causing it to pop out and be pressed tightly against the carbon fiber water retaining plate. The bottom ribbed boot plate and the conical structure prefabricated waterproof rubber strip are tightly compacted, and the overall sealing performance is good, which can block the flood outside the entrance and exit.

[0056] 7. In the present invention, the impact force of the water flow is enhanced by the adjustable pressure water jetting pipe device, so that the jacking power system can be started quickly and react sensitively.

[0057] 8. In the present invention, the polygonal eccentric barrel is wound around a pulley block via a galvanized high-strength steel wire rope and connected to a carbon fiber water retaining plate device. When the water volume in the polygonal eccentric barrel reaches the calculated volume, due to the eccentric effect of the combined force of the water in the barrel, the polygonal eccentric barrel passes over the arc-shaped rubber retaining bar and rolls along the limit slot to lift up the carbon fiber water retaining plate device, which is safe, reliable, automatic and intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but it should be understood that these drawings are designed only for explanation purposes and are not intended to limit the scope of the present invention. In addition, unless otherwise specified, these drawings are intended only to conceptually illustrate the structural configurations described herein and are not necessarily drawn to scale.

[0059] Figure 1 It is the ground floor plan of the ground entrance and exit;

[0060] Figure 2 It is a plan view of the interior of a building structure.

[0061] Figure 3a yes Figure 2 Sectional view along plane AA when the middle flood prevention system is in the closed state;

[0062] Figure 3b yes Figure 2 Sectional view along plane AA when the middle flood prevention system is in the open state;

[0063] Figure 4a yes Figure 2 Sectional view along plane BB when the middle flood prevention system is in the closed state;

[0064] Figure 4b yes Figure 2 Sectional view along plane BB when the middle flood prevention system is in the open state;

[0065] Figure 5a It is a partial front view of the carbon fiber water retaining plate device;

[0066] Figure 5b It is a right side view of the carbon fiber water retaining plate device;

[0067] Figure 5c It is a partial enlarged view of the connection between the carbon fiber water retaining plate device and the embedded U-shaped vertical channel;

[0068] Figure 6a is a side cross-sectional view of the first power system in a closed state;

[0069] Figure 6b is another side cross-sectional view of the first power system in a closed state;

[0070] Figure 6c is a side cross-sectional view of the first power system in an on state;

[0071] Figure 6d is another side cross-sectional view of the first power system in an on state;

[0072] Figure 7 This is the second power system structure diagram.

[0073] In the figure: 1. Building structure, 11. Civil structure, 1101 structural cavity, 1102. Full-length channel, 1103. Conical structure prefabricated waterproof rubber strip, 1104. Rotating cover plate, 1105. Inspection cover plate, 1106. Inclined concrete platform, 1107. Limiting slot, 1108. Arc-shaped rubber baffle, 1109. Fixed pulley embedded part A, 1110. Fixed pulley embedded part B, 1111 Hydraulic cylinder lifting device embedded part, 12 Carbon fiber water baffle device , 1201. Aluminum honeycomb carbon fiber plate, 1202. Titanium alloy U-shaped slot, 1203. Ribbed boot plate, 1204. Aluminum slider, 1205. Optical axis guide rail, 1206. Retractable water stop, 1207. Pre-buried U-shaped vertical channel, 2. First power system, 21. First water inlet system, 2101. First water inlet, 2102. First water inlet pipe, 22. Adjustable pressure jet water pipe device, 2201. Throat, 2202. Fixed bracket, 2203. Variable diameter inner wall tube, 2204. External thread, 23. Hydraulic cylinder lifting device, 2301. First water chamber, 2302. Second water chamber, 2303. Push rod, 2304. Piston, 2305. Blocking ring, 2306. Water inlet pipe, 2307. Cylinder outer wall, 2308. Exhaust hole, 2309. First scissor support, 2310. Second scissor support, 2311. Pin, 2312. Upper connecting plate, 2313. External thread, 2314. Horizontal connecting rod, 2 315. Trapezoidal block in cylinder, 3. Second power system, 31. Second water inlet system, 3101. Second water inlet, 3102. Second water inlet pipe, 32. Eccentric pulling device, 3201. First fixed pulley, 3202. Second fixed pulley, 3203. Polygonal eccentric barrel, 3204. Galvanized high-strength steel wire rope, 3205. Steel wire rope winding groove, 3206. Anti-winding water pipe interface, 3207. Anti-winding water pipe, 3208. Different diameter water pipe connector. DETAILED DESCRIPTION

[0074] First of all, it should be noted that the specific structure, features and advantages of the present invention will be specifically described below by way of example, but all descriptions are only for illustration and should not be understood as limiting the present invention in any way. In addition, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature displayed or implied in the drawings, can still be combined or deleted between these technical features (or their equivalents) to obtain more other embodiments of the present invention that may not be directly mentioned in this document. In addition, in order to simplify the drawings, the same or similar technical features may be marked only in one place in the same drawing.

[0075] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", "fixation", "screwing" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The present invention is described in detail below with reference to the accompanying drawings.

[0076] Embodiment 1:

[0077] The automatic lifting flood prevention system based on water impact force includes: a building structure 1, which includes a civil engineering structure 11 buried below a ground entrance and an carbon fiber water retaining plate device 12 sealed and slidably configured in the civil engineering structure 11; a first power system 2 is a jacking power system, which includes a hydraulic cylinder jacking device 23 for driving the carbon fiber water retaining plate device 12 to perform lifting movements, a first water inlet system 21 for supplying water to the hydraulic cylinder jacking device 23, and an adjustable pressure spraying water pipe device 22 connected between the first water inlet system 21 and the hydraulic cylinder jacking device 23; a second power system 3 is a pulling power system, which includes an eccentric pulling device 32 for driving the carbon fiber water retaining plate device 12 to perform lifting movements and a second water inlet system 31 for supplying water to the eccentric pulling device 32.

[0078] In this embodiment, Figure 1 -4, the system includes a building structure 1, a first power system 2 and a second power system 3, with little modification to the existing structure, simple structure, easy maintenance, and good feasibility. The first power system 1 and the second power system 2 dual-power automatic lifting device are used to ensure that the carbon fiber water retaining plate device 12 is quickly raised, and the stability and sealing after the lifting are ensured to prevent flood invasion.

[0079] In addition, this system does not require manual operation or an electric power system. It has a dual-power automatic lifting device for jacking and pulling, and has the advantages of safety, reliability, automaticity and intelligence.

[0080] Furthermore, in the present embodiment, it can also be considered that the civil engineering structure 11 is a concrete structure buried below the ground entrance and exit, including a structural cavity 1101, a through-length channel 1102, a conical structure prefabricated waterproof rubber strip 1103, a rotating cover plate 1104, an inspection cover plate 1105, an inclined concrete platform 1106, a limiting slot 1107, an arc-shaped rubber baffle 1108, a fixed pulley embedded part A1109, a fixed pulley embedded part B1110, and a hydraulic cylinder lifting device embedded part 1111.

[0081] Furthermore, in this embodiment, it can also be considered that the civil structure 11 includes a structural cavity 1101 symmetrically arranged under the ground at both ends of the ground entrance and exit, and the structural cavity 1101 is used to arrange a water inlet system, an adjustable pressure jet water pipe device, a hydraulic cylinder jacking device, an eccentric pulling device, a carbon fiber water retaining plate device, etc.

[0082] In this embodiment, the outline size of the structural cavity 1101 is 850mm*2400mm*1200mm, the bottom elevation is -1.4m (the elevation at the ground entrance and exit is ±0.000), the thickness of the upper structure plate is 150mm, and the thickness of the decoration surface layer is 50mm.

[0083] Furthermore, in this embodiment, it can also be considered that the bottom of the structural cavity 1101 is provided with an inclined concrete platform 1106 for placing the polygonal eccentric barrel. The inclined concrete platform is provided at the bottom of the cavity and is 1000mm wide. It is used to place the polygonal eccentric barrel and is provided with an 800mm wide and 20mm deep limit groove and an arc-shaped rubber baffle strip to limit the rolling direction of the polygonal eccentric barrel.

[0084] Furthermore, in this embodiment, it can also be considered that the bottom of the structural cavity 1101 is provided with a hydraulic cylinder lifting device embedded part 1111 for connecting the hydraulic cylinder lifting device. The embedded part is 20 mm thick and is embedded in the reinforced concrete structure. The upper part is connected to the hydraulic cylinder lifting device to play a fixing role.

[0085] Furthermore, in the present embodiment, it can also be considered that the embedded parts such as the fixed pulley embedded part A and the fixed pulley embedded part B are for fixing the power system device, are 20 mm thick, are embedded in the concrete structure, and are connected to the fixed pulley on the upper part of the eccentric pulling device at the bottom and the fixed pulley on the lower part of the eccentric pulling device at the side to play a fixing role.

[0086] Furthermore, in this embodiment, it can also be considered that an inspection cover 1105 is also provided above the structural cavity 1101. The inspection cover 1105 is symmetrically arranged on the ground, with a size of 900mm*900mm, and a structural opening size of 800mm*800mm. There is no equipment or structure in the lower vertical area, which can facilitate maintenance personnel to enter and exit.

[0087] Furthermore, in this embodiment, it can also be considered that a through-length channel 1102 for placing the carbon fiber water retaining plate device 12 is opened between the two structural cavities 1101. In this embodiment, the through-length channel 1102 is arranged between the two structural cavities, with a width of 150 mm and a depth of 850 mm. The lower part of the channel top structural plate (channel top concrete structural plate) around the through-length channel 1102 is a conical structure with a width of 50 mm to 150 mm. Conical prefabricated waterproof strips 1103 are arranged on both sides of the conical structure.

[0088] Furthermore, in this embodiment, a rotating cover plate 1104 is provided above the through-length channel 1102. The rotating cover plate 1104 (6000 mm long, 90 mm wide, and 20 mm thick) is provided on the through-length channel 1102 and is flush with the ground decoration surface layer. When the carbon fiber water retaining plate is lifted, the rotating cover plate 1104 is lifted up and rotated to stand on the water-facing side, thereby playing a role in sealing and waterproofing.

[0089] Embodiment 2:

[0090] Embodiment 2 of the present invention is further improved on the basis of embodiment 1 so as to give full play to the technical advantages of the present invention, which is described below by way of example.

[0091] For example: as shown in Figure 5, the carbon fiber water retaining plate device 21 includes an aluminum honeycomb carbon fiber plate 1201, a titanium alloy U-shaped slot 1202, a ribbed boot plate 1203, an aluminum slider 1204, an optical axis guide rail 1205, a retractable water stop strip 1206, and a pre-embedded U-shaped vertical channel 1207.

[0092] Furthermore, in this embodiment, it can also be considered that the carbon fiber water retaining plate device 12 includes:

[0093] The aluminum honeycomb carbon fiber plate 1201 is sealed and slidably arranged in the through-length groove 1102, and is composed of a 25 mm thick aluminum honeycomb plate core material and a 3 mm thick carbon fiber hot pressed outside. Titanium alloy U-shaped slots 1202 are fixed on both sides of the aluminum honeycomb carbon fiber plate 1201, and a ribbed boot plate 1203 is fixed on the bottom of the aluminum honeycomb carbon fiber plate 1201;

[0094] The embedded U-shaped vertical channel 1207 is symmetrically arranged on the concrete structure on both sides of the through-length channel 1102 and is vertically arranged on the ground. The embedded U-shaped vertical channel 1207 is provided with an optical axis guide rail 1205 and a retractable water stop 1206;

[0095] The aluminum slider 1204 is fixed on the upper and lower sides of the titanium alloy U-shaped slot 1202 on both sides of the aluminum honeycomb carbon fiber plate 1201, and is connected to the optical axis guide rail 1205. The optical axis guide rail is anchored in the pre-buried U-shaped vertical groove on the walls at both ends, and the retractable water stop is installed in the pre-buried U-shaped vertical groove. As shown in Figure 5, the left and right sides of the aluminum honeycomb carbon fiber plate 1201 are respectively provided with titanium alloy U-shaped grooves 1202 along its height direction, and aluminum sliders 1204 are also fixed on the upper and lower sides of the titanium alloy U-shaped grooves 1202 of the aluminum honeycomb carbon fiber plate 1201. The aluminum slider 1204 is slidably connected to the optical axis guide rail 1205. The number of retractable waterstops in each pre-buried U-shaped vertical groove is preferably two, extending along the height direction of the pre-buried U-shaped vertical groove, and are respectively located in front and rear of the carbon fiber water retaining plate. When the carbon fiber water retaining plate automatically rises to the set value, the switch of the retractable waterstop 1206 will be pulled up to make it pop out and press against the carbon fiber water retaining plate, and the bottom ribbed boot plate 1203 is tightly compacted with the conical structure prefabricated waterproof rubber strip 1103, with good overall sealing performance, which can block floods outside the entrance and exit.

[0096] In this embodiment, when the first power system and / or the second power system provide upward power for the carbon fiber water retaining plate device 12, the aluminum honeycomb carbon fiber plate 1201 moves upward in the through-length channel 1102, and the aluminum slider 1204, the optical axis guide rail 1205, the embedded U-shaped vertical channel 1207, etc. play a guiding role. When the aluminum honeycomb carbon fiber plate 1201 automatically rises to the set value, the switch of the retractable water stop belt 1206 will be pulled up to make it pop out and press tightly to the aluminum honeycomb carbon fiber plate 1201, and the ribbed boot plate 1203 at the bottom of the aluminum honeycomb carbon fiber plate 1201 is tightly compacted with the conical structure prefabricated waterproof rubber strip 1103, so that the carbon fiber water retaining plate device and the through-length channel and the structural cavity have good overall sealing performance, and the flood is blocked outside the entrance and exit.

[0097] It should be pointed out that the overall structure of the carbon fiber water retaining board device is light in weight, strong in strength, and corrosion-resistant. It can be raised quickly, conveniently, and reliably, and has good sealing performance, blocking floods from the entrance and exit. At the same time, the lifting height of the carbon fiber water retaining board is set to 0.6 meters, which meets the requirements of ergonomics and the safety of the height of the flood level rise.

[0098] Embodiment 3:

[0099] Embodiment 3 of the present invention is further improved on the basis of Embodiment 1 or 2 so as to give full play to the technical advantages of the present invention, which is described below by way of example.

[0100] For example, as shown in FIG. 6 , the first power system 2 includes a first water inlet system 21 , an adjustable pressure water jetting pipe device 22 , and a hydraulic cylinder lifting device 23 .

[0101] Furthermore, in the present embodiment, it can also be considered that the hydraulic cylinder lifting device 23 is symmetrically fixed on the hydraulic cylinder lifting device embedded parts 1111 at the bottom of the two structural cavities 11, including a first water chamber 2301, a second water chamber 2302, a push rod 2303, a piston 2304, a blocking ring 2305, a water inlet pipe 2306, an outer wall of a cylinder body 2307, exhaust holes 2308 (four in total), a first scissors strut 2309, a second scissors strut 2310, a pin 2311 (two in total), an upper connecting plate 2312, an external thread 2313, a horizontal connecting rod 2314 (nine in total), and a trapezoidal block 2315 in the cylinder.

[0102] Specifically, the hydraulic cylinder lifting device 23 includes:

[0103] The hydraulic cylinder is divided into a first water chamber 2301 and a second water chamber 2302 by a blocking ring 2305. The blocking ring 2305 is welded to the inner wall of the hydraulic cylinder. In the second water chamber 2302, a plurality of exhaust holes 2308 are symmetrically arranged along the outer wall 2307 of the cylinder body. Preferably, four exhaust holes are arranged to keep the internal pressure of the second water chamber 2302 consistent with the external air pressure, so as to ensure that the piston 2304 can move upward normally. A water inlet pipe 2306 is arranged at the bottom of the outer wall 2307 of the cylinder body.

[0104] A piston 2304 is disposed in the hydraulic cylinder, a push rod 2303 is disposed at the upper end of the piston, and a conical surface is disposed between the blocking ring 2305 and the piston 2304 to seal tightly;

[0105] The inner trapezoidal block 2315 is arranged at the bottom of the hydraulic cylinder body. Preferably, the inner trapezoidal block 2315 is a right-angled trapezoidal block, and its inclined side faces the water inlet pipe 2306;

[0106] The scissors brace is fixed between the upper connecting plate and the hydraulic cylinder body through a pin shaft, and includes a first scissors brace 2309 and a second scissors brace 2310 arranged side by side in parallel, a horizontal pull rod 2314 is arranged between the first scissors brace 2309 and the second scissors brace 2310, the upper end of the scissors brace is fixed with an upper connecting plate 2312 through a pin shaft 2311, the upper connecting plate 2312 is welded to the ribbed boot plate 1203, the lower end of the scissors brace is fixed to the top of the hydraulic cylinder body through a pin shaft 2311, and the push rod 2303 is connected to the horizontal connecting rod. In addition, a cylinder trapezoidal block 2315 is also provided at the bottom of the hydraulic cylinder body, and the cylinder trapezoidal block 2315 is arranged at the bottom of the hydraulic cylinder body as a piston non-working initial state support and a water flow diversion guide component; when the water flow enters the hydraulic cylinder jacking device 23, the jacking and lifting automatic flood prevention system can be completed.

[0107] The first water inlet system 21 includes a first water inlet provided below the ground entrance and exit, a first stainless steel filter 2101 provided on the first water inlet, and a first water inlet pipe 2102 connected to the first water inlet, wherein: the first water inlet is provided on the step kick surface 150mm below the entrance and exit, the water inlet diameter is 50mm, a stainless steel filter is provided at the mouth to prevent foreign matter from entering, and water enters from this mouth during floods. The first water inlet pipe 2102 is buried under the entrance and exit steps, made of stainless steel, with an outer diameter of 50mm and an inner diameter of 40mm. After entering the structural cavity 1101, it is arranged obliquely on the side wall and connected to the adjustable pressure spray water pipe device 22.

[0108] Furthermore, in this embodiment, it can be considered that the adjustable pressure jet water pipe device 22, as a trigger device for hydraulic cylinder lifting, is arranged at the bottom of the structural cavity 11, including a variable diameter inner wall pipe 2203, in which a throat 2201 is fixed at the center of the pipe by a fixed bracket 2202, and both ends of the variable diameter inner wall pipe 2203 are respectively connected to the first water inlet pipe 2102 and the water inlet pipe 2306 of the hydraulic cylinder lifting device, and the first water inlet pipe 2102 is connected to the adjustable pressure jet water pipe device by an external thread 2204, and the throat 2201 is fixed to the center of the water pipe by a fixed bracket 2202, and the water flow can pass through the variable diameter inner wall pipe 2203 and the throat 2201 to form a water impact force, and quickly trigger the hydraulic cylinder lifting device 23. The adjustable pressure jet water pipe device enhances the water flow impact force, and realizes the rapid start of the lifting power system and sensitive response.

[0109] In this embodiment, after the water inlet pipe 2306 is connected to the high-pressure water flow, the water flow enters the first water chamber 2301. When the water fills the first water chamber 2301, the piston 2304 is pushed to move upward. The piston 2304 maintains a certain small gap with the inner wall 2307 of the cylinder body to ensure that the piston 2304 can move upward normally. A push rod 2303 is provided on the piston 2304 in the hydraulic cylinder and is connected to the horizontal connecting rod between the scissors brace. The piston 2304 drives the push rod 2303 to move upward by 20cm stroke, and moves upward by 60cm stroke through the scissors brace. After the piston 2304 moves upward by 20cm stroke, it is tightly sealed with the blocking ring 2305 set inside the cylinder body through the conical sealing surface to ensure that the water in the first water chamber 2301 does not leak into the second water chamber 2302, so as to achieve continuous and stable output force and meet the continuous working requirements of the upper carbon fiber water retaining plate. Through the above structural connection and working method, the hydraulic cylinder lifting device can complete the automatic flood prevention system of pushing and lifting.

[0110] Embodiment 4:

[0111] Embodiment 4 of the present invention is further improved on the basis of Embodiment 1, 2 or 3 so as to give full play to the technical advantages of the present invention, which is described below by way of example.

[0112] For example: Figure 7 As shown, the second power system 3 includes a second water inlet system 31 and an eccentric pulling device 32. The eccentric pulling device 32 is symmetrically arranged on the inclined concrete platform 1106 in the two structural cavities 11, and includes a first fixed pulley 3201, a second fixed pulley 3202, a polygonal eccentric barrel 3203, a galvanized high-strength steel wire rope 3204, a steel wire rope winding groove 3205, an anti-winding water pipe interface 3206, an anti-winding water pipe 3207, and a reducing water pipe connector 3208.

[0113] Furthermore, in this embodiment, it can also be considered that the eccentric pulling device 32 is symmetrically arranged on the inclined concrete platform in the two structural cavities 1101, including:

[0114] A polygonal eccentric barrel 3203 is placed on an inclined concrete platform 1106, and a steel wire rope winding groove 3205 is provided on the central surface of the polygonal eccentric barrel 3203 for winding a galvanized high-strength steel wire rope 3204;

[0115] The anti-entanglement water pipe structure includes an anti-entanglement water pipe interface 3206 arranged on the side of the polygonal eccentric barrel 3203, an anti-entanglement water pipe 3207 connected to the anti-entanglement water pipe interface 3206, and a reducing water pipe connector 3208 connected to the anti-entanglement water pipe 3207, wherein the central axis of the anti-entanglement water pipe interface 3206 coincides with the central axis of the polygonal eccentric barrel 3203, and the coaxial arrangement can play an anti-entanglement role, and water flows through the reducing water pipe connector 3208, the anti-entanglement water pipe 3207 and the anti-entanglement water pipe interface 3206 into the polygonal eccentric barrel 3203;

[0116] The pulley block includes a first fixed pulley 3201 fixed to the top of the embedded U-shaped vertical channel 1207 through a fixed pulley embedded part A1109, and a second fixed pulley 3202 fixed to the bottom of the embedded U-shaped vertical channel 1207 through a fixed pulley embedded part B1110, and the diameter of the fixed pulley is 50 mm;

[0117] The galvanized high-strength steel wire rope 3204 is wound around the first fixed pulley 3201, the second fixed pulley 3202, and the steel wire rope winding groove 3205 in sequence. One end of the galvanized high-strength steel wire rope 3204 is fixed to the polygonal eccentric barrel 3203, and the other end is fixed to the carbon fiber water retaining plate device 12. The polygonal eccentric barrel 3203 is wound around the pulley block through the galvanized high-strength steel wire rope and connected to the carbon fiber water retaining plate device. When the water flows into the eccentric pulling device 32, the automatic anti-flooding system can be lifted upward.

[0118] Furthermore, in this embodiment, it can also be considered that the second water inlet system 31 includes a second water inlet provided below the ground entrance and exit, a first stainless steel filter 3101 provided on the second water inlet, and a second water inlet pipe 3102 connected to the second water inlet, the second water inlet is provided on the step kick surface 150mm below the entrance and exit positive and negative zero, the water inlet diameter is 50mm, and a stainless steel filter is provided at the mouth to prevent foreign matter from entering. The second water inlet pipe is buried under the entrance and exit steps, and the second water inlet pipe 3102 is connected to the reducing water pipe connector 3208 to connect to the eccentric pulling device.

[0119] Furthermore, in this embodiment, it can also be considered that the inclined concrete platform 1106 is 320mm high and 450mm wide, and the table top has three angles, namely a horizontal table top parallel to the ground, a gently sloping table top with an angle of 30 degrees (downward) to the ground, and a steeply sloping table top with an angle of 55 degrees (downward) to the ground. The inclined concrete platform is arranged at the bottom of the cavity for placing the polygonal eccentric barrel. The table top is 1000mm wide, and is provided with a 800mm wide and 20mm deep limiting groove 1107 and an arc-shaped rubber baffle 1108; the limiting groove 1107 serves to limit the rolling direction of the polygonal eccentric barrel, and is made of stainless steel; the arc-shaped rubber baffle 1108 is located at the starting position of the octagonal drum and is used to limit the initial position of the polygonal eccentric barrel to ensure that it rolls down instead of sliding down.

[0120] It should be noted that the polygonal eccentric barrel in this embodiment is an octagonal eccentric barrel, and specific parameters of the polygonal eccentric barrel may also be set according to requirements.

[0121] In this embodiment, the polygonal eccentric barrel 3203 is placed on an inclined concrete platform 1106, and the initial position is limited by the arc-shaped rubber stop bar 1108. A wire rope winding groove 3205 is provided on the central surface of the barrel body; the galvanized high-strength steel wire rope 3204 is wound around the first fixed pulley 3201, the second fixed pulley 3202, and the wire rope winding groove 3205 on the surface of the polygonal eccentric barrel, one end of which is fixed to the polygonal eccentric barrel 3203, and the other end is fixed to the carbon fiber water retaining plate device 12; the fixed pulleys 3201 and 3202 have a diameter of 50 mm, are fixed to the top and bottom of the embedded U-shaped vertical channel 1207, and are fixed to the fixed pulley embedded parts 1109 and 1110. After the water flows into the eccentric pulling device, when the water volume in the polygonal eccentric barrel reaches the calculated volume, it rolls downward due to the eccentric effect of the combined force of the water in the barrel. The calculation is as follows:

[0122] The total mass of the carbon fiber water retaining plate is 20kg. A lifting point is set at each end. The lifting mass of each lifting point is 10kg, and the lifting direction is vertically upward. Take one of the lifting points as the research object. After the upward vertical lifting force of 100N is transmitted through the first fixed pulley and the second fixed pulley, the direction of its reaction force is obliquely downward, with an angle of 30° with the horizontal plane. The vertical component of the known force is calculated by the sine function, and the magnitude of the oblique downward reaction force is 200N. The cross-sectional area of ​​the polygonal eccentric barrel is 0.030901m2, the barrel height is 0.8m, and the density of water is 1000kg / m3.

[0123] If the deadweight of the barrel and the favorable effect of eccentricity caused by the continuous filling of water into the barrel are not taken into account, the downward diagonal force in the full water state is 0.030901×0.8×10000N=247.2N>200N, that is, considering the most unfavorable situation, after filling 24.72L of water into the barrel, the eccentric barrel can cross the arc-shaped anti-slip strip and roll downward at an angle of 30°, thereby pulling the steel wire rope to lift the carbon fiber water retaining plate device upward, meeting the working requirements.

[0124] If the deadweight of the barrel is not taken into account and the favorable effect of eccentricity caused by the continuous filling of water into the barrel is taken into account, it is known that the magnitude of the downward oblique reaction force is 200N; therefore, when a maximum of 20L of water is filled into the barrel, the eccentric barrel 303 starts to rotate; the water volume of 20L is the maximum balance critical value for the rotation of the eccentric barrel 303, and its actual balance critical value is less than 20L, which can meet the working requirements.

[0125] Through the description of the above structural connection, working method and lifting calculation, the device can complete the pull-and-lift automatic flood prevention system.

[0126] Working principle: Figure 1-7 As shown, this system is an automatic lifting flood prevention system based on water impact force. When encountering extremely heavy rainfall and the water accumulation on the outdoor floor reaches the set threshold, the accumulated water will flow into the water inlet system 21 and 31 of the dual-power system through the first and second water inlets on the side of the steps, and as the water spreads, the water flows on both sides enter the hydraulic cylinder lifting device 23 and the eccentric pulling device 32 respectively. This dual-power automatic lifting flood prevention system ensures that the carbon fiber water retaining plate device 12 rises quickly, and ensures stability and sealing after rising, prevents flood invasion, and ensures the reliability of the automatic lifting flood prevention system.

[0127] Among them: in order to ensure the stability of the hydraulic cylinder lifting device 23, the water flow entering through the first water inlet system will first pass through the adjustable pressure jet water pipe device 22, and the water flow will be pressurized by the throat 2201 to form a water impact force and enter the hydraulic cylinder lifting device 23. After the water inlet pipe 2306 is connected to the high-pressure water flow pressurized by the adjustable pressure jet water pipe device 22, the water flow will enter the first water chamber 2302, pushing the piston 2304 to move upward, and then pushing the carbon fiber water baffle device 12 to move upward. The piston 2304 maintains a certain gap with the inner side of the outer wall of the cylinder body, and the push rod 2303 pushes the scissors support connected to it upward by 600mm with a stroke of 200mm. The piston 2304 is finally limited by the blocking ring 2305 set inside the cylinder body. When limiting, the piston 2304 and the blocking ring 2303 are tightly sealed by the conical sealing surface, ensuring that the water in the first water chamber 2302 does not leak into the second water chamber 2301, achieving continuous and stable output force, and meeting the working requirements of the upper carbon fiber water retaining plate device 12. Four exhaust holes are symmetrically arranged along the outer wall of the cylinder body in the second water chamber on the other side of the blocking ring, which is conducive to the piston to successfully complete the pushing of the carbon fiber water retaining plate device.

[0128] In order to enhance the system redundancy, improve the working stability and ensure the timely operation of the carbon fiber water retaining plate device 12, another water flow flows into the anti-winding water pipe 3207 through the second water inlet system 31 and is connected to the polygonal eccentric barrel 3203 of the eccentric pulling device 32. When the water volume in the barrel reaches the calculated volume, due to the eccentric effect of the combined force of the water body in the barrel, the polygonal eccentric barrel passes over the arc-shaped rubber baffle bar and rolls along the limit slot; at this time, the galvanized high-strength steel wire rope wound in the groove on the surface of the barrel body begins to wind around the barrel body, and the rope tension generated by the winding is transmitted through the upper and lower fixed pulleys, and the vertical component of the tension lifts the carbon fiber water retaining plate device 12 upward.

[0129] Embodiment 5:

[0130] The automatic raising flood prevention method based on water impact force comprises the automatic raising flood prevention system described above, and the automatic raising flood prevention method comprises the following steps:

[0131] Step 1: When the outdoor floor water reaches the set threshold, execute step 2 and / or step 3;

[0132] Step 2: The accumulated water flows into the first water inlet system 21 through the first water inlet. The water flow entering through the first water inlet system 21 will first pass through the adjustable pressure jet water pipe device 22. After the water inlet pipe 2306 of the hydraulic cylinder lifting device 23 is connected to the high-pressure water flow pressurized by the adjustable pressure jet water pipe device 22, the water flow enters the first water chamber 2302, pushing the piston 2304 to move upward, providing an upward lifting force for the carbon fiber water retaining plate device 12, and continuing to execute step 4;

[0133] Step three: the accumulated water flows into the second water inlet system 31 through the second water inlet, and flows into the polygonal eccentric barrel 3203 of the eccentric pulling device 32 through the second water inlet system 31 and the anti-winding water pipe 3207. When the water volume in the polygonal eccentric barrel 3203 reaches the calculated volume, due to the eccentric effect of the combined force of the water body in the polygonal eccentric barrel 3203, the polygonal eccentric barrel 3203 rolls over the arc-shaped rubber baffle 1108 along the limit card groove 1107; at this time, the galvanized high-strength steel wire rope 3204 wound in the steel wire rope winding groove 3205 begins to wind around the polygonal eccentric barrel 3203, and the rope tension generated by the winding provides an upward pulling force to the carbon fiber water retaining plate device 12 through the pulley block, and step four is executed;

[0134] Step 4: When the first power system and / or the second power system provide upward power for the carbon fiber water retaining plate device 12, the aluminum honeycomb carbon fiber plate 1201 moves upward in the through-length channel 1102, and the aluminum slider 1204, the optical axis guide rail 1205, and the embedded U-shaped vertical channel 1207 play a guiding role;

[0135] Step 5: When the aluminum honeycomb carbon fiber panel 1201 automatically rises to the set value, the switch of the retractable water stop 1206 will be pulled up, causing it to pop out and press tightly against the aluminum honeycomb carbon fiber panel 1201, and the ribbed boot plate 1203 at the bottom of the aluminum honeycomb carbon fiber panel 1201 is tightly compacted with the conical structure prefabricated waterproof strip 1103 to ensure overall sealing and intercept floods outside the ground entrance and exit.

[0136] In summary, the present invention can significantly improve work efficiency, ensure the stability and sealing of the system, prevent flood intrusion, and has broad application and promotion prospects.

[0137] The above embodiments describe the present invention in detail, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. Automatically rising flood prevention system based on water impact force, characterized by: include: A building structure (1), comprising a civil engineering structure (11) buried below a ground entrance and a carbon fiber water retaining plate device (12) sealed and slidably arranged in the civil engineering structure (11), wherein the civil engineering structure (11) comprises structural cavities (1101) symmetrically arranged below the ground at both ends of the ground entrance, an inclined concrete platform (1106) and a hydraulic cylinder lifting device embedded part (1111) are provided at the bottom of the structural cavity (1101), a through-length channel (1102) for placing the carbon fiber water retaining plate device (12) is provided between the two structural cavities (1101), and the carbon fiber water retaining plate device (12) comprises an aluminum honeycomb carbon fiber plate (1201) and embedded U-shaped vertical channels (1207) on the wall of the structural cavity symmetrically arranged on both sides of the through-length channel (1102); A first power system (2) comprises a hydraulic cylinder lifting device (23) for driving the carbon fiber water retaining plate device (12) to perform lifting motion, a first water inlet system (21) for supplying water to the hydraulic cylinder lifting device (23), and an adjustable pressure spraying water pipe device (22) connected between the first water inlet system (21) and the hydraulic cylinder lifting device (23); A second power system (3), comprising an eccentric pulling device (32) for driving the carbon fiber water retaining plate device (12) to perform lifting motion, and a second water inlet system (31) for supplying water to the eccentric pulling device (32); The eccentric pulling device (32) is symmetrically arranged on the inclined concrete platform (1106) in the two structural cavities (1101), and comprises: A polygonal eccentric barrel (3203) is placed on an inclined concrete platform (1106), wherein a steel wire rope winding groove (3205) is provided on the central surface of the polygonal eccentric barrel (3203) for winding a galvanized high-strength steel wire rope (3204); An anti-entanglement water pipe structure, comprising an anti-entanglement water pipe interface (3206) arranged on the side of a polygonal eccentric barrel (3203), an anti-entanglement water pipe (3207) and a reducing water pipe connector (3208) connected in sequence to the anti-entanglement water pipe interface (3206); A pulley block, comprising a first fixed pulley (3201) fixed to the top of a pre-buried U-shaped vertical channel (1207) through a fixed pulley embedded part A (1109), and a second fixed pulley (3202) fixed to the bottom of the pre-buried U-shaped vertical channel (1207) through a fixed pulley embedded part B (1110); A galvanized high-strength steel wire rope (3204) is sequentially wound around a first fixed pulley (3201), a second fixed pulley (3202), and a steel wire rope winding groove (3205); one end of the galvanized high-strength steel wire rope (3204) is fixed to a polygonal eccentric barrel (3203), and the other end is fixed to a carbon fiber water retaining plate device (12).

2. The automatic rising flood prevention system based on water impact force according to claim 1 is characterized in that: An inspection cover plate (1105) is also provided above the structural cavity (1101).

3. The automatic rising anti-flooding system based on water impact force according to claim 2 is characterized in that: The lower part of the channel top structural plate around the through-length channel (1102) is a conical structure, and conical prefabricated waterproof rubber strips (1103) are arranged on both sides of the conical structure. A rotating cover plate (1104) is arranged above the through-length channel (1102).

4. The automatic rising anti-flooding system based on water impact force according to claim 3 is characterized in that: The carbon fiber water retaining plate device (12) comprises: An aluminum honeycomb carbon fiber plate (1201) with titanium alloy U-shaped slots (1202) fixed on both sides and a ribbed boot plate (1203) fixed on the bottom; A pre-buried U-shaped vertical channel (1207) is provided with an optical axis guide rail (1205) and a retractable water stop strip (1206); The aluminum slider (1204) is fixed on the upper and lower sides of the titanium alloy U-shaped slot (1202) on both sides of the aluminum honeycomb carbon fiber plate (1201) and is connected to the optical axis guide rail (1205).

5. The automatic rising anti-flooding system based on water impact force according to claim 4 is characterized in that: The hydraulic cylinder lifting device (23) is symmetrically fixed on the hydraulic cylinder lifting device embedded parts (1111) at the bottom of the two structural cavities (1101), and the hydraulic cylinder lifting device (23) comprises: A hydraulic cylinder body, which is divided into a first water chamber (2301) and a second water chamber (2302) by a blocking ring (2305), the blocking ring (2305) being welded to the inner wall of the hydraulic cylinder body, a plurality of exhaust holes (2308) being symmetrically arranged along the outer wall (2307) of the cylinder body in the second water chamber (2302), and a water inlet pipe (2306) being arranged at the bottom of the outer wall (2307) of the cylinder body; A piston (2304) is disposed in a hydraulic cylinder, a push rod (2303) is disposed on the piston (2304), and a conical surface is provided between the blocking ring (2305) and the piston (2304) to form a tight seal; An in-cylinder trapezoidal block (2315) is disposed at the bottom of the hydraulic cylinder body, with its inclined side facing the water inlet pipe (2306); A scissors strut comprises a first scissors strut (2309) and a second scissors strut (2310) arranged in parallel and a horizontal pull rod (2314) is arranged between the scissors struts, the upper end of the scissors strut is fixed with an upper connecting plate (2312) through a pin shaft (2311), the upper connecting plate (2312) is welded to a ribbed boot plate (1203), the lower end of the scissors strut is fixed to the top of a hydraulic cylinder body through a pin shaft (2311), and the push rod (2303) is connected to the horizontal pull rod (2314).

6. The automatic rising anti-flooding system based on water impact force according to claim 5 is characterized in that: The first water inlet system (21) comprises a first water inlet arranged below the ground entrance and exit, a first stainless steel filter (2101) arranged on the first water inlet, and a first water inlet pipe (2102) connected to the first water inlet, wherein the first water inlet pipe (2102) is arranged obliquely in the structural cavity (1101).

7. The automatic rising flood prevention system based on water impact force according to any one of claim 6, characterized in that: The adjustable pressure jet water pipe device (22) is arranged at the bottom of the structural cavity (1101), and comprises a variable diameter inner wall pipe (2203), wherein the throat (2201) is fixed at the center of the pipe via a fixed bracket (2202) in the variable diameter inner wall pipe (2203), and the two ends of the variable diameter inner wall pipe (2203) are respectively connected to the first water inlet pipe (2102) and the water inlet pipe (2306).

8. The automatic rising flood prevention system based on water impact force according to any one of claims 4 to 7, characterized in that: The inclined concrete platform (1106) is used to place the polygonal eccentric barrel (3203), and comprises a gently sloping platform, a steeply sloping platform and a horizontal platform connected in sequence. The inclined concrete platform (1106) is provided with a deep limiting groove (1107) for limiting the rolling direction of the polygonal eccentric barrel (3203) and an arc-shaped rubber stop bar (1108) for limiting the initial position of the polygonal eccentric barrel (3203).

9. Automatic lifting flood prevention method based on water impact force, characterized by: The automatic raising flood prevention system as claimed in claim 8, wherein the automatic raising flood prevention method comprises the following steps: Step 1: When the outdoor floor water reaches the set threshold, execute step 2 and / or step 3; Step 2: The accumulated water flows into the first water inlet system (21). The water flow entering through the first water inlet system (21) is first pressurized by the adjustable pressure jet water pipe device (22). After the water inlet pipe (2306) of the hydraulic cylinder lifting device (23) is connected to the high-pressure water flow pressurized by the adjustable pressure jet water pipe device (22), the water flow is injected into the first water chamber (2302), pushing the piston (2304) to move upward, providing an upward lifting force for the carbon fiber water retaining plate device (12), and continuing to execute step 4; Step 3: The accumulated water flows into the second water inlet system (31), passes through the second water inlet system (31) and the anti-winding water pipe (3207) until it flows into the polygonal eccentric barrel (3203) of the eccentric pulling device (32). When the amount of water in the polygonal eccentric barrel (3203) reaches the calculated volume, due to the eccentric effect of the combined force of the water body in the polygonal eccentric barrel (3203), the polygonal eccentric barrel (3203) passes over the arc-shaped rubber baffle (1108) and rolls along the limit slot (1107); at this time, the galvanized high-strength steel wire rope (3204) wound in the steel wire rope winding groove (3205) begins to wind around the polygonal eccentric barrel (3203), and the rope tension generated by the winding provides an upward pulling force to the carbon fiber water retaining plate device (12) through the pulley block, and step 4 is executed; Step 4: When the first power system and / or the second power system provide upward power for the carbon fiber water retaining plate device (12), the aluminum honeycomb carbon fiber plate (1201) moves upward in the through-length channel (1102), and the aluminum slider (1204), the optical axis guide rail (1205), and the embedded U-shaped vertical channel (1207) play a guiding role; Step 5: When the aluminum honeycomb carbon fiber panel (1201) automatically rises to the set value, the switch of the retractable water stop (1206) is pulled up, so that it pops out and is pressed tightly against the aluminum honeycomb carbon fiber panel (1201), and the ribbed boot plate (1203) at the bottom of the aluminum honeycomb carbon fiber panel (1201) is tightly compacted with the conical structure prefabricated waterproof rubber strip (1103) to ensure the overall sealing and block the flood outside the ground entrance and exit.

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