Automatic water retaining device for basement entrance

Abstract

The invention relates to an automatic water retaining device for a basement entrance, which is suitable for flood prevention operation of large-scale basement entrances in deep sea islands and reefs, and comprises a mounting seat provided with a first limiting part and a sliding rail; the water retaining plate is rotatably mounted on the mounting seat through a water retaining rotating shaft; the supporting structure comprises a telescopic rod and a sliding block, the two ends, in the telescopic direction, of the telescopic rod are rotationally connected with the water baffle and the sliding block correspondingly, and the sliding block is arranged in the sliding rail in a sliding mode; the elastic piece is arranged in the sliding rail, and the two ends, in the elastic stretching direction, of the elastic piece abut against the inner wall of the end of the sliding rail and the sliding block correspondingly; the first driver is suitable for driving the sliding block to slide in the sliding rail and driving the telescopic rod to ascend or descend the water baffle. Compared with an existing water retaining structure, the degree of dependence of basement flood prevention on manpower is reduced, the device can resist the impact effect of torrential water flow under storm or extreme natural disasters, and manpower input in the silt cleaning process can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical structures, and in particular to an automatic water retaining device at a basement entrance. Background Art

[0002] As a special geographical unit in the ocean, islands and reefs have extremely important strategic significance. They can not only serve as frontier observation posts and fulcrums for maritime operations, but also play a role in strategic deterrence and checks and balances. The large underground warehouses in islands and reefs are not only often used to store important strategic materials such as military equipment, ammunition, food, and fresh water, but can also serve as shelters for island and reef personnel in emergency situations.

[0003] However, due to the complex and harsh geographical environment of the deep sea, islands and reefs are often faced with marine disasters such as typhoons and storm surges. The huge waves and heavy rainfall brought by these disasters will cause a large amount of seawater to rush to the islands and reefs in a short period of time. When there is a lack of effective water-blocking measures at the entrance of the underground reservoir, seawater will flow back into the underground reservoir, posing a serious threat to the equipment, materials and life safety of personnel in the reservoir.

[0004] Urban waterlogging occurs from time to time, posing a serious threat to people's lives and property. The same is true for underground water defense on islands. Since underground reservoirs are located underground as a whole, when flood disasters occur, a large amount of water will flow in, posing a serious threat to the safety of the underground reservoirs. However, the existing underground reservoir water retaining structures usually use scattered artificially piled flood control sandbags, which are highly dependent on manpower. After discovering the disaster risk, personnel need to be summoned to move the sandbags. The response efficiency of personnel is low in extreme weather, and the manual labor intensity of flood control operations is high, which can easily delay the timing of flood control.

[0005] Therefore, how to reduce the high dependence of basement waterproofing structures on manual labor has become an urgent problem to be solved by those skilled in the art. Summary of the invention

[0006] In order to reduce the high dependence of the basement waterproof structure on manpower, the present application provides an automatic water-blocking device for the basement entrance, which can not only withstand the impact of more turbulent water flow under storms or extreme natural disasters, but also reduce the manpower input in the sediment cleaning process. It is suitable for basement entrances arranged in areas such as deep-sea islands and reefs with high sediment content and frequent floods, to prevent water from flowing into the basement and posing a threat to the safety of people's lives and property or the arrangement and use of strategic equipment on islands and reefs.

[0007] In order to achieve the purpose of the present invention, an automatic water retaining device for a basement entrance is provided, comprising:

[0008] A mounting seat, wherein the mounting seat is provided with a first limiting portion and a sliding track;

[0009] A water baffle, the water baffle being rotatably mounted on the mounting seat via a water baffle rotating shaft;

[0010] A support structure, the support structure includes a telescopic rod and a slider, two ends of the telescopic rod along its telescopic direction are respectively rotatably connected to a water baffle and the slider, the slider is slidably arranged in the sliding track, and the sliding direction is perpendicular to the rotation axis of the water baffle at the water baffle rotation shaft;

[0011] An elastic member, the elastic member is arranged in the sliding track, two ends of the elastic member along its elastic telescopic direction are respectively abutted against the inner wall of the end of the sliding track and the slider, and the elastic member is compressed in its initial state;

[0012] A first driver, the first driver is adapted to drive the slider to slide in the sliding track, when the water level of the ground at the basement entrance reaches a first predetermined condition, the first driver drives the slider to drive the telescopic rod to raise the water baffle through the elastic member and abut against the first limiting portion, and when the water level of the ground at the basement entrance reaches a second predetermined condition, the first driver drives the slider to drive the telescopic rod to lower the water baffle to be parallel to the ground of the basement entrance.

[0013] This application is applicable as a water blocking device for the entrance of medium and large basements, especially applicable to the basement entrances in areas with frequent floods such as deep - sea islands and reefs. By setting the elastic member and the first driver to press against each other, the position of the slider in the sliding track is jointly controlled, thereby changing the opening and closing state of the water baffle. The first driver compresses the elastic member to make it in a compressed state and accumulate elastic potential energy, locks the slider to make it no longer slide, and the water baffle is flush with the ground when there is no flood in the basement, ensuring the normal passage of pedestrians and vehicles at the basement entrance. Also, by using the first driver to release the locking control of the slider, the elastic potential energy of the compressed elastic member is released, and the elastic restoring thrust prompts the slider to slide, and the water baffle rotates and stands up to block water for flood prevention.

[0014] Compared with the situation of calling personnel to manually carry flood - control sandbags after discovering the flood situation and piling them at the basement entrance, and then removing the sandbags after the flood - control is over, this application can, after discovering the flood situation or after the flood - control is over, operate and control the first driver to automatically open and close the water baffle of the automatic water - blocking device at the basement entrance, reduce the dependence on manual labor, reduce the manual labor intensity, and prevent the delay of flood - control work due to the low efficiency of manual response caused by extreme weather. Description of the Drawings

[0015] Figure 1 Showing the structural schematic diagram of the automatic water - blocking device at the basement entrance of the embodiment of this application;

[0016] Figure 2 Showing Figure 1 The structural schematic diagram of the automatic water - blocking device at the basement entrance of the embodiment when the water baffle stands up to block water;

[0017] Figure 3 Showing Figure 1A schematic diagram of the structure of the automatic water retaining device at the basement entrance when the water retaining plate of the embodiment is closed and the basement entrance is open to traffic;

[0018] Figure 4 A schematic diagram showing the structure of an automatic water retaining device for a basement entrance according to an embodiment of the present application;

[0019] Figure 5 Show Figure 4 A partial enlarged view of the automatic water retaining device at the basement entrance;

[0020] Figure 6 A schematic diagram showing the structure of an automatic water retaining device for a basement entrance according to an embodiment of the present application;

[0021] Figure 7 A schematic diagram showing the structure of an automatic water retaining device for a basement entrance according to an embodiment of the present application;

[0022] Figure 8 A schematic diagram showing the structure of the automatic water retaining device at the basement entrance when the water retaining plate of the embodiment of the present application is closed and the basement entrance is open normally;

[0023] Figure 9 Show Figure 8 A partial enlarged view of the automatic water retaining device at the basement entrance;

[0024] Figure 10 Show Figure 8 A partial enlarged view of the automatic water retaining device at the basement entrance;

[0025] Figure 11 Show Figure 8 A partial enlarged view of the automatic water retaining device at the basement entrance;

[0026] Figure 12 Show Figure 8 A partial enlarged view of the automatic water retaining device at the basement entrance;

[0027] Figure 13 A schematic structural diagram of an automatic water retaining device at a basement entrance according to an embodiment of the present application is shown.

[0028] Markings in the figure:

[0029] Water retaining plate 100, water retaining shaft 110, groove 120, mounting seat 200, first limiting portion 210, water reservoir 220, gate 222, gate limiting plate 223, second rope 224, second drive shaft 225, drainage pipe 230, cover plate 240, filter 250, sliding track 260, slider 270, first drive shaft 271, first rope 272, first spring 273, first liquid level sensor 300, telescopic rod 400, locking bead 410, basement entrance side wall 500. DETAILED DESCRIPTION

[0030] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In addition, in order to better illustrate the present application, numerous specific details are provided in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some instances, methods and means well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0031] The present application provides an automatic water retaining device at a basement entrance, comprising:

[0032] A mounting base 200, the mounting base 200 is provided with a first limiting portion 210, a sliding track 260 and a first connecting portion;

[0033] A water baffle 100, wherein a second connection portion is provided on a plate-shaped side surface of the water baffle 100, one end of the water baffle 100 is rotatably connected to the first connection portion, and the second connection portion is close to the other end of the water baffle 100;

[0034] The supporting structure includes a telescopic rod 400 and a slider 270. The two ends of the telescopic rod 400 along its telescopic direction are rotatably connected to the second connection part and the slider 270 respectively. The rotation axis of the two ends of the telescopic rod 400 and the rotation axis of the water retaining plate 100 at the first connection part are parallel to the horizontal plane and the ground at the basement entrance. The slider 270 is slidably connected to the sliding track 260. The slider 270 slides along a straight line on the sliding track 260. The sliding direction of the slider 270 intersects with the rotation axis of the water retaining plate 100 at the first connection part.

[0035] An elastic member, the elastic member is located in the sliding track 260, and the two ends of the elastic member along the elastic expansion direction are respectively connected to the side wall of the sliding track 260 and the slider 270;

[0036] The first driver is suitable for driving the slider 270 to slide in the sliding track 260. The driver drives the slider 270 to slide so that the water retaining plate 100 rotates to be parallel to the ground of the basement entrance. The slider 270 is locked so that it no longer slides. At this time, the elastic member is compressed and contracted. When water is needed to be blocked, the first driver releases the lock on the sliding of the slider 270. The elastic member is no longer subjected to the compressive force applied to the slider 270 by the first driver. The elastic member generates an elastic force to restore the natural telescopic length. Driven by the elastic force of the elastic member to reset, the slider 270 slides in the sliding track 260, and the water retaining plate 100 rotates therewith until it is perpendicular to the ground of the basement entrance. At this time, the water retaining plate 100 abuts and fits with the first limiting portion 210, and the first limiting portion 210 is located on the rear side of the rotation direction of the water retaining plate 100.

[0037] This application is applicable to the water retaining device at the entrance of medium and large-sized basements, especially applicable to the basement entrances in areas with frequent floods such as deep-sea islands and reefs. In this application, an elastic member and a first driver are arranged to press against each other, jointly controlling the position of the slider 270 in the sliding track 260, thereby changing the opening and closing state of the water retaining plate 100. By using the first driver to compress the elastic member, it is in a compressed state to accumulate elastic potential energy, locking the slider 270 to prevent it from sliding. When there is no flood in the basement, the water retaining plate 100 is flush with the ground, ensuring the normal passage of pedestrians and vehicles at the basement entrance. Also, by using the first driver to release the locking control of the slider 270 and releasing the elastic potential energy of the compressed elastic member, the elastic reset thrust causes the slider 270 to slide, and the water retaining plate 100 rotates and stands up to block water for flood prevention.

[0038] Compared with the situation of calling personnel to manually carry flood control sandbags after discovering the flood situation and piling them at the basement entrance, and then removing the sandbags after the flood control is over, this application can, after discovering the flood situation or after the flood situation is over, operate and control the first driver to automatically open and close the water retaining plate 100 of the automatic water retaining device at the basement entrance, reducing the dependence on manual labor, reducing the manual labor intensity, and preventing the delay of flood control work due to the low efficiency of manual response caused by extreme weather.

[0039] In addition, in the present application, the elastic member that accumulates elastic potential energy through compression drives the slider 270 to slide by the restoring elastic force, and is transmitted to the water baffle 100 through the telescopic rod 400 to lift and erect the water baffle 100. Compared with directly using a hydraulic rod to directly push the water baffle 100, the thrust at the moment of contact when the water baffle 100 abuts and fits against the first limiting portion 210 is too large, and the consequent impact force is likely to damage the water baffle 100 and the first limiting portion 210. It is possible to directly break through the water baffle 100 and push the first limiting portion 210 away from the mounting seat 200 and the left / right side walls of the basement entrance, resulting in the failure of the first limiting portion 210, or the connection sealing performance between the water baffle 100 and the entrance wall is insufficient, causing rainwater to leak and accumulate. Even if a single instantaneous impact does not directly cause serious consequences, it will also shorten the service life of the equipment. The present application does not use a direct linear displacement hydraulic rod to push the water baffle 100, but slowly releases the elastic potential energy of the elastic member through the first rope 272. Taking the first spring 273 as an example, during the process of the first rope 272 being evenly extended, the elastic force of the first spring changes according to Hooke's law. The change trend of the instantaneous elastic force is as follows: at the initial unlocking moment, the compression deformation of the first spring 273 is the largest and the elastic force is the largest; during reset or weighing, the deformation linearly decreases as the extended length of the first rope 272 increases, and the elastic force also linearly decreases; after the first spring 273 is reset, the deformation is zero, the first spring 273 returns to its natural length, and the elastic force disappears. Therefore, the compression deformation of the elastic member gradually decreases, and the elastic force decreases gradually. Therefore, during the process of the water baffle 100 rotating and erecting, the initial tangential force received is the largest and then decreases. Before the water baffle 100 contacts the first limiting portion 210, the impact force towards the first limiting portion 210 is infinitely small, which can ensure the stability of the first limiting portion 210, reduce the mutual wear caused by the impact at the moment of contact between the water baffle 100 and the first limiting portion 210, and can extend the service life of the equipment on the premise of ensuring limiting and anti-leakage.

[0040] In a possible implementation manner, the mounting seat 200 is further provided with a drainage structure. A water baffle rotating shaft 110 is provided at the first connection portion of the mounting seat 200. The water baffle rotating shaft 110 rotates around its own axis on the mounting seat 200. The water baffle 100 is rotatably connected to the first connection portion through the water baffle rotating shaft 110. Along the radial direction of the water baffle rotating shaft 110, the water inlet of the drainage structure and the drainage rotating shaft are arranged adjacent to each other, and the water outlet of the drainage structure is connected to the common drainage pipe 230.

[0041] In a possible implementation manner, the drainage structure includes a reservoir 220. The mounting seat 200 is provided with a first preset cavity as the reservoir 220. The side wall of the reservoir 220 is provided with a water inlet and a water outlet. When the water baffle 100 rotates to be parallel to the basement entrance ground, the water baffle 100 fits against the side wall of the mounting seat 200 and covers the water inlet of the reservoir 220.

[0042] The interior of the water reservoir 220 is generally prism-shaped, preferably a quadrangular prism. The water inlet of the water reservoir 220 is provided on the upper bottom surface of the prism, and the lower bottom surface of the prism is inclined. That is: the inner wall of the water reservoir 220 on the side away from its water inlet is provided with an inclined surface, and the inclined surface is inclined to the radial plane of the prism structure. The water outlet of the water reservoir 220 is arranged near the end of the inclined surface away from the water inlet of the water reservoir 220. The water outlet of the water reservoir 220 is provided with a gate, which prevents the backflow of water from the public drainage pipe 230 in extreme weather, affecting the safety of life and property of the people in the basement and the use of strategic arrangements.

[0043] The areas of the several sides of the prism structure should be equal, but because of the inclination of the inclined surface, the areas of the sides are no longer consistent, and the water outlet is arranged close to the edge between the side with the largest area and the inclined surface, and the water outlet can be located on the side with the largest area. Preferably, the water reservoir 220 is located outside the basement as a whole, and the side of the inclined surface inclined downward faces the outside of the basement, and the side of the inclined surface inclined upward faces the inside of the basement.

[0044] The automatic water retaining device at the basement entrance is pre-buried in the ground at the basement entrance as a whole, the first connecting part is located at the ground level, the first liquid level sensor 300 and the first limit part 210 extend out of the ground, as long as they are arranged near the opposite ends of the entrance (left and right sides, the entry and exit direction of the basement entrance is stipulated to be front and back, the gravity direction is up and down, and the axial direction perpendicular to the front and back and up and down is left and right), they do not hinder the traffic at the entrance. The mounting seat 200 is buried underground. When the water retaining plate 100 rotates to be parallel to the ground of the basement entrance, the water retaining plate 100 is flush with the ground level, and because the water retaining plate 100 covers the water inlet of the water reservoir 220 at this time, the water inlet of the water reservoir 220 is located above the water reservoir 220, and the water inlet and water outlet of the water reservoir 220 are respectively arranged near the opposite ends of the water reservoir 220 (the first preset cavity), so the water outlet of the water reservoir 220 is located below the water reservoir 220.

[0045] When pre-burying the automatic water-blocking device at the entrance of the basement, it should be noted that the axial direction of the prism structure of the water reservoir 220 should be consistent with the direction of gravity. The sediment accumulated on the lower bottom surface of the prism will flow to the outlet of the water reservoir 220 which is lower on the inclined surface of the lower bottom surface due to the action of gravity and the impact of the water flow, and will be directly washed away by the water flow. This can reduce the accumulation of sediment in the water reservoir 220, reduce the cost of manual cleaning of silt, reduce dependence on manual operations, and reduce the intensity of manual labor.

[0046] The present application can automatically remove sand during the flood prevention process and after the accumulated water has receded. It can not only withstand the impact of more turbulent water flow during storms or extreme natural disasters, but also reduce the manpower input in the silt cleaning process. It is suitable for the entrance of underground reservoirs arranged in areas such as deep-sea islands and reefs where floods are frequent and the silt content in the water is high. It can effectively prevent water from flowing into the underground reservoir and reduce the threat posed to the safety of people’s lives and property or the deployment and use of strategic equipment on islands and reefs.

[0047] The water storage tank 220 is also provided with a second driver for driving the opening and closing of the gate of the water storage tank 220. A second liquid level sensor is arranged in the water storage tank 220 for detecting the water storage liquid level information in the water storage tank 220. The output end of the second liquid level sensor is electrically connected to the second driver. Preferably, a switch track is arranged at the water outlet of the water storage tank 220, and the gate of the water storage tank 220 is installed in the switch track, and the gate is slidably connected to the switch track. The gate controls the opening and closing of the gate of the water storage tank 220 by sliding to cover, semi-cover, or completely not cover the water outlet of the water storage tank 220.

[0048] This application does not specifically limit the shape and structure of the switch track, as long as it can limit the displacement direction of the gate, ensure the opening and closing of the gate, realize the smooth flow and interception of water, and realize the functions of drainage and water storage. Preferably, the sliding direction of the gate is perpendicular to the horizontal plane, that is, perpendicular to the ground plane of the basement entrance. A gate limiting plate 223 is arranged outside the water outlet of the water storage tank 220, and the gate limiting plate 223 is also provided with a water outlet for draining water from the water storage tank 220. The water drainage port and the water outlet of the water storage tank 220 are matched and arranged opposite to each other. The gate is integrally in the shape of a flat plate. A preset sliding gap matching the gate is arranged between the gate limiting plate 223 and the outer side wall of the water outlet of the water storage tank 220. The side wall of the gate limiting plate 223 and the outer wall of the water outlet of the water storage tank 220 enclose a switch track, and the gate is installed in the preset sliding gap, and the two plate-like sides of the gate are respectively attached to the side wall of the gate limiting plate 223 and the outer wall of the water outlet of the water storage tank 220.

[0049] The driving end of the second driver is connected to the gate for driving the gate to slide in the switch track. The second driver is provided with a second transmission member, and the second transmission member of the second driver is preferably a second rope 224. The second driver is a winding machine, and the second driver is suitable for driving its own driving shaft to rotate. One end of the second rope 224 is connected to the driving shaft of the second driver, and the other end is fixedly connected to the gate. The second driver winds and unwinds the second rope 224 by the rotation of its own driving shaft, thereby changing the extended length of the second rope 224, and thus changing the relative distance between the gate and the driving shaft of the second driver. Also, because the second driver is fixedly installed on the mounting seat 200 and does not displace, and the gate is slidably connected to the switch track of the mounting seat 200, the second driver can drive the gate to slide, thereby controlling the opening and closing of the gate.

[0050] By providing a reservoir 220 in this application, drainage can be carried out, and the gate can also be closed to store rainwater for reuse, such as for greening irrigation, to avoid waste of resources. The gate can limit the drainage flow rate, and its temporary rainwater storage function can smooth out the peaks and valleys, converting a large flow rate into a small flow rate for continuous discharge, matching the carrying capacity of the public drainage network, and preventing urban waterlogging caused by excessive instantaneous drainage volume. In extreme weather, there is a certain probability of water level fluctuations in the public pipe network, and the gate can play the role of a check valve to prevent the backflow of water from the public drainage network and protect the basement.

[0051] Furthermore, a drainage channel is also provided through the mounting base 200 as a drainage structure. The reservoir 220 is located between the drainage channel and the first connecting portion. The two ends of the drainage channel are open, serving as its water inlet and outlet respectively. A cover plate 240 is provided at the water inlet of the drainage channel, and the cover plate 240 is provided with more than two through holes. The cover plate 240 is preferably a grille plate. A filtering device is provided at the water outlet of the drainage channel for filtering sediment. The filtering device is detachably connected to the water outlet of the drainage channel for easy replacement, preventing the drainage from being blocked due to excessive sediment, which may cause poor drainage. The filtering device is preferably a filter screen. The water outlet of the reservoir 220 is communicated with one end of the drainage channel close to the water outlet of the drainage channel, and the water discharged from the reservoir 220 is filtered by the filtering device at the water outlet of the drainage channel to remove sediment and then discharged into the public drainage pipe 230 through the drainage end channel and its water outlet of the drainage channel.

[0052] In this application, by providing a reservoir 220 near the root of the water retaining plate 100 and a drainage pipe 230 relatively far from the root of the water retaining plate 100 for staged flood discharge: the reservoir 220 near the water retaining plate 100 is the first line of defense, and a gate is provided to directly intercept the risk of backflow. When the water level of the public drainage network rises, the gate can be quickly closed to block the backflow of external water through the shortest path to the area of the basement water retaining plate 100, protecting the safety of the core area (such as the equipment room and parking area). The drainage pipe 230 far from the water retaining plate 100 serves as the secondary drainage path. Even if the gate of the primary channel fails or the pressure of the municipal pipe network is extremely high, this channel can still drain water through pump pressurization or gravity flow.

[0053] This application sets redundant paths for the drainage system. The drain pipe 230 without gates and valves can serve as an emergency rough flood discharge outlet under extreme conditions, achieving high reliability and efficiency with a simple structure. The drain pipe 230 has a large discharge capacity and no gates or valves for large-capacity emergency drainage. When the drainage structure rapidly discharges flood, if only relying on the channel of the reservoir 220 with a small discharge capacity and small drainage outlets, negative pressure siphon effect or air resistance may occur in the channel due to too fast flow velocity, resulting in a decrease in drainage efficiency. At this time, the drainage channel without gates and valves can serve as a breathing port to balance the internal and external pressures, ensure stable water flow, and prevent the public drainage pipe network from being under high pressure, which will cause a great impact on the gates of the reservoir 220 on the primary drainage path. The diversion function of the secondary drainage path can reduce the water pressure borne by the gates and extend their service life.

[0054] In a possible implementation manner, the cover plate 240 is detachably buckled at the water inlet of the drainage channel. After covering the cover plate 240, the cover plate 240 is flush with the ground at the basement entrance, providing normal support for passing vehicles and pedestrians, preventing people and vehicles from falling into the drain pipe 230, and ensuring the normal passage of the basement entrance. At the same time, water flows into the drain pipe 230 through the through holes of the cover plate 240 and enters the public drainage system. In deep-sea islands and reefs, the water contains a high content of sediment. The convenience and timeliness of replacing the filtering device are relatively important. In this application, the cover plate 240 can be lifted, and the filter 250 can be replaced through the straight-through drainage channel, which is convenient to operate and has sufficient operating space.

[0055] In a possible implementation manner, the water baffle 100 is preferably a rectangular plate. The first limiting portion 210 is fixedly connected to the left / right side wall of the basement entrance, and the connection is closely fitted to prevent water leakage. The water on the side of the water baffle 100 facing the outside of the basement flows at a high speed and flows downward into the reservoir 220, which can form a negative pressure eddy behind the plate. The low-pressure area at the rear side generates a suction force on the water baffle 100, making the fit between the water baffle 100 and the first limiting portion 210 closer, with better sealing performance and better anti-leakage effect.

[0056] The side of the first limiting portion 210 in contact with the water baffle 100 is in the shape of a flat plate, and the side of the water baffle 100 in contact with the first limiting portion 210 is in the shape of a flat plate. The cross-section of the opposite side of the water baffle 100 is serrated. The plate-shaped side surface of the water baffle 100 is provided with two or more parallel long strip-shaped grooves 120, and the length direction of the grooves 120 is perpendicular to the rotation axis of the water baffle 100 at the first connection portion. When the water baffle 100 rotates to contact the first limiting portion 210, one side of the water baffle 100 contacts and fits with the first limiting portion 210 to prevent accumulated liquid from leaking into the basement through the gap between the water baffle 100 and the first limiting portion 210, and the side surface of the water baffle 100 provided with the grooves 120 faces the outside of the basement.

[0057] Compared with using a pure flat water baffle 100, when facing the turbulent water flow brought by sudden heavy rainfall or storm surge, its ability to resist water pressure is limited. The advantages of this application are as follows:

[0058] Flow diversion and pressure relief. The water flow pattern of the flat plate is continuous laminar flow, forming a large-area uniform water film. The kinetic energy of the water flow is concentrated and almost completely converted into the normal pressure on the plate surface, with great pressure destructiveness. When rainwater or flood flows down along the outer side of the water baffle 100 of this application, the vertical grooves 120 divide the water flow into multiple discrete turbulent thin streams, and the water flow division continuously occurs. After division, the kinetic energy is redistributed among multiple grooves 120. The initial impact is independently borne by each groove 120. Due to the disruption of the water flow consistency and the mutual interference of the water flows in each groove 120, the pressure cannot be superimposed synchronously but is offset. Part of the kinetic energy of the water flow is converted into normal pressure, part splashes thickly and laterally when the water flow impacts the edge of the groove 120, taking away energy, and another part is the mutual collision of the divided water columns, resulting in internal energy dissipation. Therefore, this application can divert the water flow through the vertical grooves 120, reduce the energy that might otherwise be converted into the normal pressure borne by the plate surface through cost reduction and turbulent dissipation, thereby reducing the normal pressure borne by the water baffle 100, relieving pressure and extending the service life.

[0059] Inhibiting lateral deformation. The vertical grooves 120 are equivalent to adding longitudinal stiffeners to the plate surface, significantly enhancing the bending resistance of the water baffle 100 against flood impact. The flat plate surface will bulge like a drum skin under the normal pressure and eventually rupture. The vertical grooves 120 are equivalent to adding longitudinal stiffeners to the plate surface. The grooves 120 disperse the concentrated load, and the pressure is preferentially conducted to the top of the grooves 120, the serrated tips. The multiple micro-arches formed by the grooves 120 decompose the large-span bending into small-segment micro-bends, which can resist bulging deformation, and the stress is concentrated at the thickest part of the structure, where the tensile strength is the highest, capable of resisting deformation. In addition, the grooves 120 can divert and relieve pressure, reduce the frontal impact force borne by the water baffle 100, and reduce the risk of lateral deformation or being washed away of the water baffle 100.

[0060] Furthermore, considering the special geographical environment of deep-sea islands and reefs, where there is strong wind and sand and the water flow often contains a large amount of sediment. When sediment accumulates at the bottom of the water retaining plate 100, it will not only interfere with the water retaining effect but also affect the normal rotation and closing of the water retaining plate 100, and it requires a certain amount of manpower to clean. In this application, the aforementioned reservoir 220 is provided on the mounting base 200, and the first connecting portion is located at the opening edge of the water inlet of the reservoir 220. During flood control operations, the vertical grooves 120 of the water retaining plate 100 divert the water flow to the root of the water retaining plate 100, and the water directly falls into the reservoir 220 through the water inlet of the reservoir 220 at the root of the water retaining plate 100. Even if the sediment content in the water flow is high, it will only settle and accumulate near the inclined plane gate of the reservoir 220 or above the filter 250, and will not accumulate at the bottom of the root of the water retaining plate 100 to affect the automatic closing of the water retaining plate 100, eliminating the need for manual sediment cleaning.

[0061] In a possible implementation manner, the automatic water retaining device for the basement entrance further includes a first liquid level sensor 300. The first liquid level sensor 300 is installed on the outer wall of the mounting base 200 and is used to detect the liquid level information of the accumulated liquid on the ground at the basement entrance. The output end of the first liquid level sensor 300 is electrically connected to the first driver.

[0062] In this application, by setting the first liquid level sensor 300 to detect whether there is accumulated liquid on the ground at the basement entrance. If there is accumulated liquid, the liquid level information is uploaded to the first driver to convert it into a control signal for driving the water retaining plate 100 to rotate and erect. Therefore, the automatic water retaining device for the basement entrance provided by this application can automatically sense the accumulated water situation at the entrance and accordingly automatically control the water retaining plate 100 to erect for flood control. It can achieve automatic sensing water retaining at the entrance of large basements in deep-sea islands and reefs in case of storms or other extreme weather and natural disasters, which can further reduce the dependence on manual labor for basement flood control work and make the flood control work automated and intelligent. The output end of the first liquid level sensor 300 can also be electrically connected to the basement integrated management system or the alarm device to remind the staff of the flood situation and provide the liquid level information of the accumulated liquid at the entrance as a reference, which is more conducive to the development of flood control work.

[0063] In a possible implementation manner, the first driver is provided with a first transmission member, and the first transmission member is a first rope 272. The first driver is a winding machine, and the first driver is suitable for driving the rotation of its drive shaft. One end of the first rope 272 is connected to the drive end of the first driver, and the other end is connected to the slider 270. The first driver changes the extended length of the first rope 272 by winding and unwinding the first rope 272 to drive the sliding displacement of the slider 270, thereby driving the rotation of the water retaining plate 100.

[0064] Preferably, the elastic member is preferably the first spring 273. One end of the first rope 272 away from the driving shaft of the first driver is located at the helical axis of the first spring 273. The first rope 272 passes through the hollow structure of the first spring 273 and is fixedly connected to the slider 270, with uniform force, which can ensure the connection stability. Along the access direction of the basement entrance, the sliding track 260 and the drainage structure are on the same side of the first connecting portion. The sliding track 260 and the drainage structure are both installed on the outer side of the basement entrance, which can reduce the size of the mounting base 200 and facilitate installation.

[0065] The sliding track 260 is located in the reservoir 220 and is arranged near the end of the reservoir 220 where its water inlet is located. The inner wall of the reservoir 220 is provided with a long groove-shaped slide rail for the slider 270 to be embedded and slide as the sliding track 260. The slider 270, or the connection between the slider 270 and one end of the telescopic rod 400, or the telescopic rod 400 extends out of the groove-shaped opening of the long groove-shaped slide rail. The opening direction of the groove-shaped opening is consistent with the rotation axis of the water baffle 100 at the first connecting portion. The structure is simple and easy to shape. The groove-shaped opening faces the left / right side of the basement entrance, rather than the upper side in the direction of gravity, which can reduce the damage of the water flow to the first spring 273 and the first rope 272 in the sliding track 260 and extend the service life of the product. The groove depth can be appropriately deepened as needed. When the reservoir 220 drains and stores water during ordinary rainfall, the water flow blocked by the water baffle 100 flows downward along the guide of the vertical groove 120 under the action of gravity, without contacting or less contacting the first spring 273 and the first rope 272 located deep in the groove and at a certain distance from the groove-shaped opening. The first spring 273 can be waterproofed, and a waterproof spring can be selected. The first rope 272 and the second rope 224 are preferably cable ropes, which have the advantages of light weight, high strength, good impact resistance and wear resistance, corrosion resistance, mildew resistance, and insect resistance.

[0066] In a possible implementation, the slider 270 is slidably connected to the sliding track 260. The sliding direction of the slider 270 intersects with the rotation axis of the water baffle 100 at the first connection part, that is, the sliding direction of the slider 270 is inclined to the rotation axis of the water baffle 100 at the first connection part and is inclined to the horizontal plane. The sliding track of the slider 270 on the sliding track 260 is an inclined line segment. The preset length of this inclined line segment along the gravity direction is greater than or equal to the rotation radius of the water baffle 100 on the connecting seat, preferably equal to. The inclination angle depends on the relationship between the embedded depth of the mounting seat 200 and the rotation radius of the water baffle 100 on the connecting seat. As long as it is ensured that within the displacement track range of the slider 270, the included angle range between the corresponding water baffle 100 and the horizontal plane includes 0 - 90°. The rotation radius of the water baffle 100 on the connecting seat means that with the end connected to the first connection part of the water baffle 100 as the rotation root and the relative other end of the water baffle 100 as the rotation distal end, the connection position of the telescopic rod 400 on the water baffle 100 is located in the middle of one side of the plate surface and is close to the rotation distal end. Taking the long strip groove-shaped sliding rail as an example, the splashing water enters the long strip groove-shaped sliding rail and will flow downward along the inner wall of the inclined downward track under the action of gravity to the end of the track and overflow out of the track, reaching the drainage outlet of the water storage tank 220 below the water storage tank 220, and guiding the water flow to the filter 250 for sand removal and drainage.

[0067] In a possible implementation, spring beads are provided between adjacent two sections of the telescopic rod 400 to lock the position. When the first driver drives the slider 270 to slide, the steel balls of the spring beads retract to unlock and the telescopic rod 400 contracts. Specifically, the telescopic rod 400 includes at least two sections of the telescopic rod 400. The telescopic rod 400 is integrally hollow and is provided with a telescopic cavity with one end open. The body length directions of all sections of the telescopic rod 400 are the same and are arranged in sequence. One end of the body length of one section of the telescopic rod 400 enters its telescopic cavity through the open end of the telescopic cavity of the adjacent other section of the telescopic rod 400 and slides along the rod body length direction of the telescopic rod 400 where it is located in the telescopic cavity, so as to realize the socket sliding of adjacent two sections of the telescopic rod 400 and complete the elongation and shortening of the whole telescopic rod 400.

[0068] One end of the telescopic rod 400 extending into the telescopic cavity is provided with a spring bead. The spring bead includes a second spring and a locking bead 410. The locking bead 410 is connected to the outer wall of one end of the telescopic rod 400 extending into the telescopic cavity through the second spring. The two ends of the second spring along its elastic telescopic direction are respectively connected to the outer wall of the telescopic rod 400 and the locking bead 410. The elastic telescopic direction of the second spring is perpendicular to the sliding direction of the telescopic rod 400 in the telescopic cavity. The inner wall of the telescopic cavity of the telescopic rod 400 is provided with a groove or a through hole matching the locking bead 410.

[0069] During the relative sliding of the telescopic rods 400 with respect to each other, the inner wall of the telescopic cavity restricts the position of the locking beads 410, and the locking beads 410 compress the second spring, and the second spring is always in a compressed state. When two adjacent telescopic rods 400 of the telescopic rod 400 slide relative to each other to a preset position, such that the overall length of the telescopic rod 400 reaches the preset extended length, the water baffle 100 just rotates to abut against the first limiting portion 210. At this time, the locking beads 410 are disposed opposite to the grooves (or through holes), and under the elastic force of the second spring, they extend into the grooves (or through holes). The two adjacent telescopic rods 400 are joined by plugging through the locking beads 410 and the grooves, locking the relative positions of the two adjacent telescopic rods 400, and no longer sliding and extending or shortening randomly, making the telescopic rod 400, which is a triangular reinforcing support foot, more stable, strengthening the connection stability of the water baffle 100 on the mounting base 200, and making the water baffle 100 no longer rotate and shake randomly. The present application does not specifically limit the unlocking method of the spring bead locking structure, as long as it can be unlocked when needed to ensure the free telescoping of the telescopic rod 400. In a possible implementation manner, the end of the groove or through hole along the sliding direction of the telescopic rod 400 is beveled or arc-shaped. When the pulling force is large enough to overcome the frictional resistance caused by the elastic force of the second spring, the relative displacement between the locking bead 410 and the inner wall of the groove occurs, and the locking bead 410 moves out of the groove, unlocking the plug-in locking, and freely telescoping. The telescopic rod 400 shortens, and the water baffle 100 rotates until it is flush with the ground.

[0070] In a possible implementation manner, the automatic water blocking device at the basement entrance includes all the foregoing components. The first driver and the second driver are preferably motors. The first liquid level sensor 300 is preferably an optoelectronic liquid level sensor, and its sensing end height is only slightly higher than the ground, and is used to sense whether there is accumulated water on the ground. The present application does not specifically limit the installation height of the sensing end of the first liquid level sensor 300 and the sensed liquid level height, and it can be flexibly set according to the actual flood control ability of the basement. The second liquid level sensor is preferably a static pressure type liquid level sensor.

[0071] Before a large amount of water comes during a disaster, set the linkage program. The first liquid level sensor 300 senses the existence of a small amount of accumulated water and outputs a signal to the first driver. Subsequently, the driving shaft where the first rope 272 connected to the slider 270 automatically rotates and unwinds, so that the first rope 272 is relaxed and unfurled. The first spring 273 connected to the slider 270 pushes the slider 270 outwards. The position of the slider 270 changes, the telescopic rod 400 rotates relative to the slider 270, the telescopic rod 400 telescopes, and drives the water baffle 100 at the other end of the telescopic rod 400 to gradually stand up. When the angle between the water baffle 100 and the ground approaches 90°, although the angle of the telescopic rod 400 with respect to the water baffle 100 becomes smaller and the torque decays, due to the horizontal impact of the water outside the basement, the water baffle 100 can be rotated to 90° under the force. At this time, the state of the water baffle 100 is as Figure 1At this time, the first limiter 210 fixed on the side wall 500 of the basement entrance will limit the further rotation of the water baffle 100, ensuring that the angle between the water baffle 100 and the ground does not exceed 90°. At the same time, the locking bead 410 of the spring bead at the connection between the two sections of the telescopic rod 400 pops out of the lock position to prevent the telescopic rod 400 from easily extending and retracting. At this point, the water baffle 100 is completely unscrewed to block the incoming water flow, preventing a large amount of water from entering the large basement and threatening people's lives and property.

[0072] When the accumulated water flows to the water retaining plate 100 at the entrance of the basement, a large amount of silt contained in the water settles into the water reservoir 220 in front of the water retaining plate 100 due to gravity, and since the bottom surface of the water reservoir 220 is inclined at a certain angle, the silt gradually accumulates on the side close to the gate baffle of the water reservoir 220.

[0073] When the accumulated water recedes, the first liquid level sensor 300 disposed on the side wall 500 of the basement entrance adjacent to the first limiter 210 senses that the accumulated water on the ground has been drained, and at the same time, the second liquid level sensor in the water reservoir 220 senses that the liquid level in the water reservoir 220 has accumulated to a certain depth, and controls the second driver above the gate of the water reservoir 220 to drive the second drive shaft 225 to reel up, and the second rope 224 on it is pulled upward, driving the gate of the water reservoir 220 to be opened, and the sediment accumulated at the gate is driven out by the water flow in the water reservoir 220 and falls on the sand filter net below, so that the outflowing water flows through the filter 250 to the underground sewer, and the sediment is intercepted by the filter 250. Subsequent personnel can recover and clean the filtered sediment by lifting the cover plate 240 above the filter 250.

[0074] When the water in the water reservoir 220 is completely drained, the second liquid level sensor arranged at the bottom of the pool senses the drop in liquid level, controls the drive shaft of the second driver above the gate of the water reservoir 220 to rotate and unwind, and the second rope 224 thereon unfolds downward, so that the gate falls back, and the drain outlet of the water reservoir 220 returns to a closed state.

[0075] At the same time, for the water retaining plate 100, when the first liquid level sensor 300 on the side wall 500 of the basement entrance senses that the ground water has been drained and the basement is no longer threatened by floods, the first driver drive shaft at the rear is immediately controlled to rotate and reel, tighten the first rope 272 connected to the slider 270, and the first spring 273 is compressed. The slider 270 slides to the inside of the basement and gradually approaches the water retaining plate 100. The locking bead 410 of the telescopic rod 400 is pressed back to unlock, and the telescopic rod 400 is shortened, so that the water retaining plate 100 is closed and level with the horizontal plane. At this point, the water retaining plate 100 at the basement entrance is completely retracted and hidden underground, and the basement can be used normally without affecting the traffic of vehicles and pedestrians.

[0076] The embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is also not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary technicians in the art to understand the embodiments disclosed herein.

Claims

1. An automatic water retaining device at the basement entrance, characterized in that: include: A mounting seat, wherein the mounting seat is provided with a first limiting portion and a sliding track; A water baffle, the water baffle being rotatably mounted on the mounting seat via a water baffle rotating shaft; A supporting structure, the supporting structure comprising a telescopic rod and a slider, the two ends of the telescopic rod along the telescopic direction are rotatably connected to the water retaining plate and the slider respectively, the slider is slidably arranged in the sliding track, and the sliding direction is perpendicular to the rotation axis of the water retaining plate at the water retaining shaft; An elastic member, wherein the elastic member is disposed in the sliding track, and both ends of the elastic member along the elastic expansion and contraction direction thereof are respectively in contact with the inner wall of the end of the sliding track and the sliding block, and the elastic member is compressed in an initial state; The first driver is suitable for driving the slider to slide in the sliding track. When the water level on the ground at the entrance of the basement reaches a first predetermined condition, the first driver drives the slider through the elastic member to drive the telescopic rod to raise the water baffle and abut against the first limiting portion. When the water level on the ground at the entrance of the basement reaches a second predetermined condition, the first driver drives the slider to drive the telescopic rod to lower the water baffle to be parallel to the ground at the entrance of the basement.

2. The automatic water retaining device at the basement entrance according to claim 1 is characterized in that: The mounting seat is also provided with a water reservoir, which is arranged below the water baffle plate. Along the entry and exit direction of the basement entrance, the water inlet of the water reservoir faces the water baffle plate, and the water outlet of the water reservoir is connected to the public drainage pipe. When the water baffle plate is rotated to be parallel to the ground of the basement entrance, the water baffle plate fits the side wall of the mounting seat and covers the water inlet of the water reservoir.

3. The automatic water retaining device at the basement entrance according to claim 2 is characterized in that: The interior of the water reservoir is square or rectangular as a whole, the bottom of the water reservoir is inclined, the side close to the water retaining shaft is higher than the side away from the water retaining shaft, and a gate is provided at the water outlet of the water reservoir.

4. The automatic water retaining device at the basement entrance according to claim 3 is characterized in that: The water reservoir is also provided with a second driver for driving the gate switch of the water reservoir. A second liquid level sensor is provided in the water reservoir for detecting the water level information in the water reservoir. The second liquid level sensor is electrically connected to the second driver.

5. The automatic water retaining device at the basement entrance according to claim 4 is characterized in that: The second driver is provided with a second driving shaft and a second rope. The second driving shaft is connected to the driving end of the second driver. One end of the second rope is wound around the second driving shaft, and the other end is connected to the gate. The second driver raises and lowers the gate by winding and unwinding the second rope through the second driving shaft.

6. The automatic water retaining device at the basement entrance according to claim 1 is characterized in that: The mounting seat is also penetrated by a drainage channel, the water inlet of the drainage channel is provided with a cover plate, the cover plate is provided with a through hole, and the water outlet of the drainage channel is provided with a filtering device for filtering mud and sand.

7. The automatic water retaining device at the basement entrance according to claim 1 is characterized in that: It also includes a first liquid level sensor, which is installed on the outer wall of at least one side of the basement entrance and is used to detect the liquid level information of the liquid accumulated on the ground at the basement entrance. The first liquid level sensor is electrically connected to the first driver.

8. The automatic water retaining device at the basement entrance according to claim 1 is characterized in that: The first driver is provided with a first driving shaft and a first rope, the first driving shaft is connected to the driving end of the first driver, one end of the first rope is wound around the first driving shaft, and the other end is connected to the slider, the first driver changes the unfolded length of the first rope by winding / relaxing the first driving shaft, drives the slider to slide and displace, thereby driving the water baffle to rotate.

9. The automatic water retaining device at the basement entrance according to claim 8, characterized in that: When the water level on the ground at the entrance of the basement reaches a first predetermined condition, the first drive shaft automatically rotates, loosens the first rope, and the elastic member pushes the slider outward. The slider drives the telescopic rod to extend to raise the water baffle and abut against the first limiting portion, and the telescopic rod is locked. When the water level on the ground at the entrance of the basement reaches a second predetermined condition, the first driver automatically rotates, reels in the first rope, and the first rope pulls back the slider. The slider drives the telescopic rod to retract and unlock to lower the water baffle to be parallel to the ground at the entrance of the basement, and the elastic member is compressed.

10. An automatic water blocking method according to the automatic water blocking device for a basement entrance according to any one of claims 1 to 9, characterized in that: When a disaster occurs and a large amount of water flows, the first liquid level sensor senses the presence of accumulated water and outputs a signal to the first driver. The first drive shaft automatically rotates to unwind, so that the first rope is loosened and unfolded. The elastic member pushes the slider outward, and the telescopic rod extends, pushing the water baffle to gradually stand up until it contacts the first limit part. At the same time, the telescopic rod is locked. When the accumulated water flows to the water retaining plate at the entrance of the basement, the silt contained in the water settles into the reservoir in front of the water retaining plate, and because the bottom of the reservoir is inclined at a certain angle, the silt gradually accumulates on the side close to the gate retaining plate of the reservoir; When the accumulated water recedes, the first liquid level sensor senses that the accumulated water on the ground has been drained, and at the same time, the second liquid level sensor senses that the liquid level in the reservoir has accumulated to a certain depth, and controls the second driver to drive the second drive shaft to rotate and reel in the second rope to open the gate, so that the accumulated water in the reservoir flows to the underground sewer, and the silt is filtered and intercepted; When the water in the reservoir is completely drained, the second liquid level sensor senses the drop in liquid level and controls the second driver to drive the second drive shaft to rotate and unwind the second rope, so that the gate falls and closes; The first liquid level sensor senses that the water on the ground has been drained, and controls the first driver to drive the first shaft to rotate and reel in, tightening the first rope, compressing the first spring, sliding the slider toward the inside of the basement, and shortening the telescopic rod, thereby closing the water baffle and making it level with the horizontal plane.

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