Automatically-closed water bag flood bank structure suitable for river bank zone

Abstract

The invention relates to the technical field of flood control, in particular to an automatically-closed water bag flood bank structure suitable for a river bank zone. Comprising a first water-collecting well, a second water-collecting well, a plurality of drain holes, a plurality of communicating holes and an elastic expansion bag, wherein the first water-collecting well and the second water-collecting well are dug on the outer side of a riverway; the first water-collecting well is communicated with the inside of the riverway through the drain holes; the second water-collecting well is located on the first water-collecting well side away from the river; the elastic expansion bag is fixed at the top end in the second water-collecting well; when water in the river channel enters the second water collecting well from the first water collecting well, the second water collecting well is filled with water and enters the elastic expansion bag, so that the elastic expansion bag is forced to protrude out of the second water collecting well. The water storage and drainage effect is achieved through the first water collecting well, and the water interception effect is achieved through expansion of the second water collecting well and the elastic expansion bag.

Description

Technical Field

[0001] The invention relates to the technical field of flood control, and in particular to an automatically closed water bag flood control embankment structure suitable for riverbank areas. Background Art

[0002] In the face of sudden floods caused by short-term heavy rainfall, flood embankments can effectively prevent river flooding, but building a large number of flood embankments is not economical. The traditional method is to use sandbags or other equipment to block river floods when floods come. However, this method requires a large amount of manpower for temporary embankment construction, and it is often difficult to block floods in time. In addition, if the flood peak lasts for a long time, continuous reinforcement work is required, which is time-consuming and labor-intensive, and the effect is difficult to guarantee.

[0003] Although many flood control measures have been proposed, most of them focus on temporary reinforcement measures such as rapid artificial construction and strength improvement, as well as optimization of permanent dam structures. Based on the above background, an economical and automatic measure to intercept river flooding is of great significance to reduce or even prevent floods from endangering the safety and stability of human society. Summary of the invention

[0004] In view of this, the present invention provides an automatically closed water bag flood embankment structure suitable for riverbank areas to solve the problem of river flooding caused by sudden floods.

[0005] In a first aspect, the present invention provides an automatically closed water bag flood embankment structure suitable for riverbank areas, comprising:

[0006] A first water collection well and a second water collection well are dug outside the river channel, wherein the second water collection well is located on the side of the first water collection well away from the river channel;

[0007] A plurality of drainage holes connecting the first water collection well with the interior of the river channel, and a plurality of connecting holes connecting the second water collection well with the first water collection well;

[0008] An elastic expansion bag is fixed to the top of the inner part of the second water collection well;

[0009] When water in the river enters the second water collection well from the first water collection well, the water in the second water collection well is filled and enters the elastic expansion bag to force the elastic expansion bag to protrude from the inside of the second water collection well.

[0010] When the rainfall is heavy, the water level inside the river rises. When the water level inside the river rises until it covers the lowest drainage hole, the water inside the river will enter the first water collection well through this drainage hole. At the same time, the ground water can also flow into the first water collection well through the grille cover set on the top of the first water collection well. At this time, the first water collection well can play the role of water storage and drainage, and to a certain extent, it can share the pressure of the river and prevent the excessive amount of water inside the river from causing river flooding. When the rainfall is heavier, as the water level inside the river rises, the water level inside the first water collection well also rises until the water level inside the first water collection well exceeds the highest connecting hole. At this time, the water inside the first water collection well enters the second water collection well through the connecting hole. When the second water collection well is full of water, the water will be squeezed into the elastic expansion bag through the through seam at the top of the second water collection well. At this time, the elastic expansion bag expands due to the increasing amount of water inside, until the elastic expansion bag squeezes the sealing plates on both sides open, the elastic expansion bag is exposed to the ground, and continues to expand as the internal water filling increases. The elastic expansion bag exposed on the ground can play a role in intercepting water, thereby realizing the integration of small flood drainage and large flood interception.

[0011] In an optional embodiment, the drainage hole includes a bottom drainage hole and an upper drainage hole, the bottom drainage hole is close to the bottom side of the first water collection well, and the upper drainage hole is arranged on the upper side of the bottom drainage hole.

[0012] In an optional embodiment, the drainage hole is arranged obliquely, and the opening of the drainage hole connected to one side of the river channel is inclined downward.

[0013] In an optional embodiment, the communication hole includes a lower communication hole and an upper communication hole provided on the upper side of the lower communication hole;

[0014] A one-way drainage valve is provided at the end of the lower connecting hole, which only allows liquid to flow into the first water collection well.

[0015] In the process of the water inside the first water collection well entering the second water collection well through the connecting hole, a one-way drainage valve that only allows liquid to flow into the first water collection well is provided at the end of the lower connecting hole. Therefore, when the water inside the first water collection well floods the lower connecting hole, it cannot enter the second water collection well through the lower connecting hole due to the existence of the one-way drainage valve. Therefore, the water inside the first water collection well will flow into the second water collection well through the upper connecting hole only when the water inside the first water collection well floods the upper connecting hole.

[0016] In an optional embodiment, a filter screen is provided at the end of the upper connecting hole.

[0017] In an optional embodiment, the opening height of the lower connecting hole in the first water collection well is higher than the opening height of the bottom drainage hole in the first water collection well.

[0018] During the construction of the first water collection well and the second water collection well, the depth of the first water collection well should be greater than the depth of the second water collection well. During the construction of the bottom drainage hole and the lower connecting hole, in order to enable all the water in the first water collection well to be discharged into the river through the bottom drainage hole, the bottom drainage hole is set at the bottom of the first water collection well. Similarly, during the construction of the lower connecting hole, in order to enable all the water in the second water collection well to be discharged into the first water collection well through the lower connecting hole, the lower connecting hole is set at the bottom of the second water collection well, so that the opening height of the lower connecting hole in the first water collection well is higher than the opening height of the bottom drainage hole in the first water collection well, so as to ensure that the water flowing into the first water collection well from the lower connecting hole can smoothly flow into the river through the bottom drainage hole.

[0019] In an optional embodiment, the connecting hole is arranged horizontally.

[0020] In an optional embodiment, it further comprises a limiting component, wherein the limiting component is arranged at the opening end of the second water collecting well to limit the elastic expansion bag to be inside the limiting component;

[0021] When the elastic expansion bag is filled with water and expands, the elastic expansion bag is configured to flush open the limiting component.

[0022] In an optional embodiment, the limiting component includes:

[0023] Two groups of springs, the two groups of springs are arranged on opposite sides of the opening end of the second water collection well, and the ends of the two groups of springs that are away from each other are kept fixed;

[0024] Two sealing plates are respectively connected to one end of the two groups of springs close to each other. The two sealing plates are pushed by the springs to abut against each other to close the opening end of the second water collection well.

[0025] The two groups of springs are respectively arranged on the left and right sides of the opening end of the second water collection well, and two grooves for placing the springs are constructed inside the soil on the left and right sides of the opening end of the second water collection well. When installing the springs, one end of the two springs can be fixed inside the two grooves respectively, and a sealing plate is fixed on the ends of the two groups of springs that are close to each other. When the elastic expansion bag is not expanded, the two sealing plates abut against each other under the action of the two springs. The opening end of the second water collection well can be closed through the abutment of the two sealing plates, thereby restricting the elastic expansion bag to the lower side of the two sealing plates.

[0026] In an optional embodiment, inner sides of the ends of the two sealing plates that are close to each other are both chamfered.

[0027] In order to facilitate the elastic expansion bladder to push open the two sealing plates when it expands, chamfers are provided on the inner sides of the ends of the two sealing plates close to each other. When the two sealing plates abut against each other under the action of two springs, the chamfers on the two sealing plates form grooves. When the elastic expansion bladder expands, the two sealing plates can be pushed apart by abutting the chamfers.

[0028] The present invention provides an automatically closed water bag flood embankment structure suitable for riverbank areas, which has the following advantages:

[0029] 1. The present invention provides an automatically closed water bag flood embankment structure suitable for riverbank areas, comprising a first water collection well and a second water collection well dug outside a river channel, wherein the second water collection well is located on the side of the first water collection well away from the river channel; a plurality of drainage holes connecting the first water collection well with the interior of the river channel, and a plurality of connecting holes connecting the second water collection well with the first water collection well; an elastic expansion bag fixed at the top of the interior of the second water collection well; wherein, when water in the river channel enters the second water collection well from the first water collection well, the water in the second water collection well is filled and enters the elastic expansion bag, so as to force the elastic expansion bag to protrude from the interior of the second water collection well.

[0030] This water bag flood embankment structure, when the rainfall is heavy, the water level inside the river rises, and when the water level inside the river rises until it covers the lowest drainage hole, the water inside the river will enter the first water collection well through this drainage hole, and at the same time, the ground water can also flow into the first water collection well through the grille cover set on the top of the first water collection well. At this time, the first water collection well can play a role in water storage and drainage, and to a certain extent can share the pressure of the river channel, preventing the excessive amount of water inside the river channel from causing river flooding. When the rainfall is heavier, the water level inside the river channel rises, and as the water level inside the river channel rises, the water level inside the first water collection well also rises until the water level inside the first water collection well exceeds the highest connecting hole, at which time the water inside the first water collection well enters the second water collection well through the connecting hole. When the second water collection well is filled with water, the water will be squeezed into the elastic expansion bag through the slit at the top of the second water collection well. The elastic expansion bag will expand due to the increasing amount of water inside, until the elastic expansion bag squeezes the arc plates on both sides, and the elastic expansion bag is exposed to the ground, and continues to expand as the amount of water inside increases. The elastic expansion bag exposed to the ground can play a role in intercepting water, thereby realizing the integration of small flood drainage and large flood interception.

[0031] 2. The present invention provides an automatically closed water bag flood embankment structure suitable for riverbank areas, wherein the communication hole comprises a lower communication hole and an upper communication hole arranged on the upper side of the lower communication hole;

[0032] A one-way drainage valve is provided at the end of the lower connecting hole, which only allows liquid to flow into the first water collection well.

[0033] In this water bag flood embankment structure, during the process of water in the first water collection well entering the second water collection well through the connecting hole, a one-way drainage valve is provided at the end of the lower connecting hole for only allowing liquid to flow into the first water collection well. Therefore, when the water in the first water collection well floods the lower connecting hole, it cannot enter the second water collection well through the lower connecting hole due to the existence of the one-way drainage valve. Therefore, the water in the first water collection well will flow into the second water collection well through the upper connecting hole only when the water in the first water collection well floods the upper connecting hole.

[0034] 3. The present invention provides an automatically closed water bag flood embankment structure suitable for riverbank areas, wherein the opening height of the lower connecting hole in the first water collection well is higher than the opening height of the bottom drainage hole in the first water collection well.

[0035] In this water bag flood embankment structure, during the construction of the first water collection well and the second water collection well, the depth of the first water collection well should be greater than the depth of the second water collection well. During the construction of the bottom drainage hole and the lower connecting hole, in order to enable all the water in the first water collection well to be discharged into the river through the bottom drainage hole, the bottom drainage hole is set at the bottom of the first water collection well. Similarly, during the construction of the lower connecting hole, in order to enable all the water in the second water collection well to be discharged into the first water collection well through the lower connecting hole, the lower connecting hole is set at the bottom of the second water collection well, so that the opening height of the lower connecting hole in the first water collection well is higher than the opening height of the bottom drainage hole in the first water collection well, so as to ensure that the water flowing into the first water collection well from the lower connecting hole can smoothly flow into the river through the bottom drainage hole.

[0036] 4. The present invention provides an automatically closed water bag flood embankment structure suitable for riverbank areas, wherein the limiting assembly comprises:

[0037] Two groups of springs, the two groups of springs are arranged on opposite sides of the opening end of the second water collection well, and the ends of the two groups of springs that are away from each other are kept fixed;

[0038] Two sealing plates are respectively connected to one end of the two groups of springs close to each other. The two sealing plates are pushed by the springs to abut against each other to close the opening end of the second water collection well.

[0039] In this water bag flood embankment structure, two groups of springs are respectively arranged on the left and right sides of the opening end of the second water collection well, and two grooves for placing springs are constructed inside the soil on the left and right sides of the opening end of the second water collection well. When installing the springs, one end of the two springs can be fixed inside the two grooves respectively, and a sealing plate is fixed on the ends of the two groups of springs that are close to each other. When the elastic expansion bag is not inflated, the two sealing plates abut against each other under the action of the two springs, and the opening end of the second water collection well can be closed through the abutment of the two sealing plates, thereby restricting the elastic expansion bag to the lower side of the two sealing plates.

[0040] 5. The present invention provides an automatically closed water bag flood embankment structure suitable for riverbank areas, wherein the inner sides of the ends of the two sealing plates close to each other are both chamfered.

[0041] In order to facilitate the elastic expansion bag to break open the two sealing plates when the elastic expansion bag is inflated, this water bag flood embankment structure is provided with chamfers on the inner sides of the ends of the two sealing plates close to each other. When the two sealing plates abut against each other under the action of two springs, the chamfers on the two sealing plates form grooves. When the elastic expansion bag is inflated, the two sealing plates can be pushed apart by abutting the chamfers. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 A schematic structural view of an automatically closed water bag flood embankment structure suitable for riverbank areas provided in an embodiment of the present invention;

[0044] Figure 2 A schematic structural view of a limiting component in an automatically closed water bag flood embankment structure suitable for riverbank areas provided in an embodiment of the present invention;

[0045] Figure 3 A schematic structural view of an elastic expansion bag in an unexpanded state in an automatically closed water bag flood embankment structure suitable for riverbank areas provided in an embodiment of the present invention;

[0046] Figure 4 It is a schematic structural view of an elastic expansion bag in an expanded state in an automatically closed water bag flood embankment structure suitable for riverbank areas provided in an embodiment of the present invention.

[0047] Description of reference numerals:

[0048] 1-Bottom drain hole;

[0049] 2-Upper drain hole;

[0050] 3-First collection of water wells;

[0051] 4-Second episode of water wells;

[0052] 5-lower connecting hole;

[0053] 6-upper connecting hole;

[0054] 7-One-way drain valve;

[0055] 8-Filter;

[0056] 9- elastic expansion bladder;

[0057] 10- grille cover;

[0058] 11-Seal the board;

[0059] 12- Spring. DETAILED DESCRIPTION

[0060] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0062] Example

[0063] In the face of sudden floods caused by short-term heavy rainfall, flood embankments can effectively prevent river flooding, but building a large number of flood embankments is not economical. The traditional method is to use sandbags or other equipment to block river floods when floods come. However, this method requires a large amount of manpower for temporary embankment construction, and it is often difficult to block floods in time. In addition, if the flood peak lasts for a long time, continuous reinforcement work is required, which is time-consuming and labor-intensive, and the effect is difficult to guarantee.

[0064] Although many flood prevention measures have been proposed, most of them focus on temporary reinforcement measures such as rapid artificial construction and strength improvement, as well as optimization of permanent dam structures. Based on the above background, this embodiment provides an automatically closed water bag flood embankment structure suitable for riverbank areas to solve the problem of river flooding caused by sudden floods.

[0065] In this embodiment, if Figures 1 to 4 As shown, the automatically closed water bag flood embankment structure suitable for riverside areas includes a first water collection well 3 and a second water collection well 4 dug outside the river channel, a number of drainage holes connecting the first water collection well 3 with the inside of the river channel, a number of connecting holes connecting the second water collection well 4 with the first water collection well 3, an elastic expansion bag 9 fixed at the top end of the second water collection well 4, and a limiting component arranged at the opening end of the second water collection well 4.

[0066] In this embodiment, the second water collection well 4 is located on the side of the first water collection well 3 away from the river channel; when the water in the river channel enters the second water collection well 4 from the first water collection well 3, the water in the second water collection well 4 is filled and enters the elastic expansion bag 9, forcing the elastic expansion bag 9 to bulge out of the second water collection well 4.

[0067] like Figure 1 As shown, Figure 1 The middle grey part is the foundation. Figure 1 There is a river channel in the middle left part. When digging the first water collection well 3, the position of the first water collection well 3 is preset on one side of the river channel and there is a certain distance between the first water collection well 3 and the river channel. This distance should be able to ensure that the river water inside the river channel will not break down the side wall of the first water collection well 3, and ensure that the first water collection well 3 has sufficient stability. Furthermore, the side wall of the first water collection well 3 can be cast with corrosion-resistant concrete to improve the corrosion resistance of the first water collection well 3 under the action of acid and alkaline rainwater. Of course, this does not limit the construction process of the side wall of the first water collection well 3. In some other embodiments, if there are other application requirements for the first water collection well 3, specific construction materials can also be selected according to the specific usage scenario. Among them, the shape of the first water collection well 3 can be columnar or other shapes, which is determined according to the on-site construction conditions. Figure 1In the embodiment shown, the cross-section of the first water collection well 3 is rectangular, and the cross-section size is preferably determined according to parameters such as peak rainfall per unit time, diameter and number of drainage holes, etc. A grille cover 10 is fixed at the upper end of the first water collection well 3 .

[0068] In this embodiment, the first water collection well 3 is connected to the interior of the river channel through a plurality of drainage holes. When the rainfall is large, the water level inside the river channel rises. When the water level inside the river channel rises until it submerges one of the drainage holes, the water inside the river channel will enter the first water collection well 3 through the drainage hole. At this time, the first water collection well 3 can play a role in water storage, and to a certain extent can share the pressure of the river channel, preventing the water volume inside the river channel from being too large, causing the river to flood. When the water level inside the river channel drops, the water inside the first water collection well 3 can flow into the river channel again through the drainage hole.

[0069] As can be seen from the above, when the water level in the river rises until it covers one of the several drainage holes, the water in the river will enter the first water collection well 3 through the drainage hole. Therefore, the lowest position of the drainage hole determines the condition for the water in the river to enter the first water collection well 3. Therefore, in the specific construction process, the lowest position of the drainage hole can be determined according to the peak rainfall per unit time and the width and depth of the river.

[0070] In this embodiment, if Figure 1 As shown, the second water collection well 4 is connected to the first water collection well 3 through a connecting hole. The second water collection well 4 is located on the side of the first water collection well 3 away from the river. When digging the second water collection well 4, the position of the second water collection well 4 is preset on the side of the first water collection well 3 and there is a certain distance between the first water collection well 3. This distance should be able to ensure that the river water inside the first water collection well 3 will not break the soil between the first water collection well 3 and the second water collection well 4, and ensure that the first water collection well 3 and the second water collection well 4 have sufficient stability. Further, the side wall of the second water collection well 4 can be cast with corrosion-resistant concrete to improve the corrosion resistance of the second water collection well 4 under the action of acid and alkaline rainwater. Of course, this does not limit the construction process of the side wall of the second water collection well 4. In some other embodiments, if there are other scene application requirements for the second water collection well 4, specific construction materials can also be selected according to the specific use scenario. Among them, the shape of the second water collection well 4 can be columnar or other shapes, which is determined according to the on-site construction conditions. Among them, the cross-sectional size should be determined based on parameters such as peak rainfall per unit time, aperture and number of drainage holes.

[0071] In this embodiment, the height of the upper connecting hole 6 in the connecting hole is higher than the preset water storage level in the first water collection well 3; wherein the preset water storage level in the first water collection well 3 is the height of the bottom of the upper connecting hole 6.

[0072] When the rainfall is heavier, the water level inside the river channel rises, and as the water level inside the river channel rises, the water level inside the first water collection well 3 also rises, until the water level inside the first water collection well 3 exceeds the upper connecting hole 6, at which time the water inside the first water collection well 3 enters the second water collection well 4 through the upper connecting hole 6. Since the elastic expansion bladder 9 is fixed at the top of the second water collection well 4, when the water level inside the second water collection well 4 reaches the top of the second water collection well 4, at this time, due to the rising water level inside the river channel, the water inside the river channel will still flow into the second water collection well 4 through the first water collection well 3. During this process, the water inside the second water collection well 4 will continue to flow into the elastic expansion bladder 9, and the elastic expansion bladder 9 will expand and bulge out of the second water collection well 4 due to the water inside it, until the elastic expansion bladder 9 expands to the upper side of the second water collection well 4, that is, the elastic expansion bladder 9 is on the upper side of the second water collection well 4 after it passes the upper opening of the second water collection well 4. At this time, Figure 4 As shown, after the elastic expansion bag 9 is filled with water, it can play a role in intercepting water, realizing the integration of small flood drainage and large flood interception.

[0073] Among them, the above-mentioned small flood drainage refers to: when the rainfall is large, the water level inside the river channel rises. When the water level inside the river channel rises until it submerges one of the several drainage holes, the water inside the river channel will enter the first collection well 3 through this drainage hole. At the same time, the ground water can also flow into the first collection well 3 through the grille cover 10. When the water level in the first collection well 3 does not exceed the upper connecting hole 6, the first collection well 3 can play a role in storing water and draining water, and can share the pressure of the river channel to a certain extent, preventing the excessive amount of water inside the river channel from causing river flooding. Flood water interception means: when the rainfall is heavier, the water level inside the river channel rises, and as the water level inside the river channel rises, the water level inside the first water collection well 3 also rises, until the water level inside the first water collection well 3 exceeds the upper connecting hole 6. At this time, the water inside the first water collection well 3 enters the second water collection well 4 through the upper connecting hole 6, and the water inside the second water collection well 4 enters the elastic expansion bag 9. At this time, the elastic expansion bag 9 expands due to the increasing amount of water inside, until the elastic expansion bag 9 expands to the upper side of the second water collection well 4, that is, the elastic expansion bag 9 passes the upper end opening of the second water collection well 4 and is on the upper side of the second water collection well 4, which can play a role in water interception.

[0074] In this embodiment, the elastic expansion bladder 9 is made of existing materials, which need to have good chemical stability, good weather resistance and mechanical properties, such as fluorosilicone rubber. Figure 1As shown, the cross-section of the second water-collecting well 4 is right-angled at the bottom and arc-shaped at the top, and a through slit is provided at the top of the second water-collecting well 4. The inlet end of the elastic expansion bag 9 passes through the through slit at the top of the second water-collecting well 4 and is fixed to the top side wall of the second water-collecting well 4, and the expansion body of the elastic expansion bag 9 is provided on the top side of the second water-collecting well 4. With this design, when the water level inside the second water-collecting well 4 reaches the top of the second water-collecting well 4, at this time, due to the rising water level inside the river channel, the water inside the river channel will still flow into the second water-collecting well 4 through the first water-collecting well 3, and the water inside the second water-collecting well 4 will enter the elastic expansion bag 9 through the inlet end of the elastic expansion bag 9 at the top of the second water-collecting well 4, so that the expansion body of the elastic expansion bag 9 on the top side of the second water-collecting well 4 will expand to play a role in intercepting water.

[0075] In this embodiment, if Figure 1 As shown, the drainage holes include a bottom drainage hole 1 and an upper drainage hole 2 . The bottom drainage hole 1 is close to the bottom side of the first water collecting well 3 , and the upper drainage hole 2 is arranged on the upper side of the bottom drainage hole 1 .

[0076] During construction, a bottom drainage hole 1 and an upper drainage hole 2 are set between the first water collection well 3 and the river channel. The two drainage holes can improve the efficiency of water at different water levels in the river channel flowing into the first water collection well 3. At the same time, since the water in the river channel contains debris, there is a risk of debris in the water in the river channel blocking the drainage holes during the process of the water in the river channel flowing into the first water collection well 3. Therefore, setting up two drainage holes can reduce the risk of the drainage holes being blocked by debris, resulting in the water in the river channel being unable to flow into the first water collection well 3. Specifically, Figure 1 In the illustrated embodiment, the upper drainage hole 2 is arranged on the upper side of the bottom drainage hole 1. When the water level inside the river channel is low, for example, when the water level inside the river channel just exceeds the bottom drainage hole 1, the water inside the river channel can flow into the first water collection well 3 through the bottom drainage hole 1. Similarly, when the rainfall is large, the water level inside the river channel rises and the water level inside the river channel exceeds the upper drainage hole 2. At this time, the water inside the river channel flows into the first water collection well 3 through the bottom drainage hole 1 and the upper drainage hole 2. The simultaneous operation of the two drainage holes can speed up the flow of water inside the river channel into the first water collection well 3.

[0077] In some other embodiments, the number of drain holes can also be set to other values. Alternatively, when the number of drain holes is also set to two, the two drain holes can be arranged in parallel, or the upper drain hole 2 can also be arranged on the upper right side or upper left side of the bottom drain hole 1.

[0078] In this embodiment, if Figure 1As shown, the drainage hole is inclined, and the opening of the drainage hole connected to the river channel is inclined downward. When the water in the river channel enters the first water collection well 3 from the drainage hole, since the drainage hole is inclined, and the opening of the drainage hole connected to the river channel is inclined downward, part of the silt and other debris can be blocked from directly entering the drainage hole, and when the water level in the river channel drops, when the water in the first water collection well 3 flows into the river channel, the inclined drainage hole can easily flush the silt in the drainage hole into the river channel.

[0079] In this embodiment, if Figure 1 As shown, the connecting hole includes a lower connecting hole 5 and a lower connecting hole 6, wherein the upper connecting hole 6 is arranged on the upper side of the lower connecting hole 5; a one-way drainage valve 7 is provided at the end of the lower connecting hole 5 for only allowing liquid to flow into the first water collection well 3.

[0080] In the process of the water inside the first water collection well 3 entering the second water collection well 4 through the connecting hole, a one-way drainage valve 7 is provided at the end of the lower connecting hole 5, which only allows liquid to flow into the first water collection well 3. Therefore, when the water inside the first water collection well 3 submerges the lower connecting hole 5, it cannot enter the second water collection well 4 through the lower connecting hole 5 due to the existence of the one-way drainage valve 7. Therefore, the water inside the first water collection well 3 will flow into the second water collection well 4 through the upper connecting hole 6 only when the water inside the first water collection well 3 submerges the upper connecting hole 6.

[0081] In this embodiment, if Figure 1 As shown, a filter screen 8 is provided at the end of the upper connecting hole 6. By providing the filter screen 8 on both sides of the upper connecting hole 6 to filter the sediment in the water, it is ensured that the water flowing into the second water collection well 4 does not contain a large amount of sediment, thereby avoiding sediment deposition at the bottom of the second water collection well 4.

[0082] In this embodiment, if Figure 1 As shown, the opening height of the lower connecting hole 5 in the first water collecting well 3 is higher than the opening height of the bottom drainage hole 1 in the first water collecting well 3 .

[0083] During the construction of the first water collection well 3 and the second water collection well 4, the depth of the first water collection well 3 should be greater than the depth of the second water collection well 4. During the construction of the bottom drainage hole 1 and the lower connecting hole 5, in order to enable all the water in the first water collection well 3 to be discharged into the river through the bottom drainage hole 1, the bottom drainage hole 1 is set at the bottom of the first water collection well 3. Similarly, during the construction of the lower connecting hole 5, in order to enable all the water in the second water collection well 4 to be discharged into the first water collection well 3 through the lower connecting hole 5, the lower connecting hole 5 is set at the bottom of the second water collection well 4, so that the orifice height of the lower connecting hole 5 in the first water collection well 3 is higher than the orifice height of the bottom drainage hole 1 in the first water collection well 3, so as to ensure that the water flowing from the lower connecting hole 5 into the first water collection well 3 can smoothly flow into the river through the bottom drainage hole 1.

[0084] In this embodiment, if Figure 1 As shown, the connecting holes are arranged horizontally.

[0085] In this embodiment, if Figure 1 As shown, the limiting assembly is arranged at the opening end of the second water collecting well 4 to limit the elastic expansion bag 9 to be inside the limiting assembly; when the elastic expansion bag 9 is filled with water and expanded, the elastic expansion bag 9 is configured to flush open the limiting assembly.

[0086] like Figure 3 As shown, when the elastic expansion bag 9 is not expanded, the elastic expansion bag 9 is inside the limit assembly, and this design can protect the elastic expansion bag 9 from damage from the outside. When the elastic expansion bag 9 is filled with water and expanded, the elastic expansion bag 9 can break the limit assembly and then expose the ground surface, which can play a role in water interception.

[0087] In this embodiment, if Figure 3 As shown, the limit assembly includes two groups of springs 12 and two sealing plates 11. The two groups of springs 12 are arranged on opposite sides of the opening end of the second water collection well 4, and the ends of the two groups of springs 12 that are away from each other are kept fixed; the two sealing plates 11 are respectively connected to the ends of the two groups of springs 12 that are close to each other, and the two sealing plates 11 are pushed by the springs 12 to abut against each other to close the opening end of the second water collection well 4.

[0088] exist Figure 3In the embodiment shown, two groups of springs 12 are respectively arranged on the left and right sides of the opening end of the second water collection well 4, and two grooves for placing the springs 12 are constructed inside the soil on the left and right sides of the opening end of the second water collection well 4. When installing the springs 12, one end of the two springs 12 can be fixed inside the two grooves respectively, and a sealing plate 11 is fixed to the ends of the two groups of springs 12 that are close to each other. When the elastic expansion bag 9 is not expanded, the two sealing plates 11 abut against each other under the action of the two springs 12, and the opening end of the second water collection well 4 can be closed by the abutment of the two sealing plates 11, thereby restricting the elastic expansion bag 9 to the lower side of the two sealing plates 11.

[0089] When the elastic expansion bag 9 expands, Figure 4 As shown, the elastic expansion bag 9 can break open the two sealing plates 11 and then be located on the upper side of the second water collection well 4, thereby playing a role in intercepting water.

[0090] In this embodiment, the inner sides of the ends of the two sealing plates 11 close to each other are both chamfered. In order to facilitate the elastic expansion bag 9 to open the two sealing plates 11 when the elastic expansion bag 9 expands, the inner sides of the ends of the two sealing plates 11 close to each other are both chamfered. When the two sealing plates 11 abut against each other under the action of the two springs 12, the chamfers on the two sealing plates 11 form a Figure 3 The groove shown can push the two sealing plates 11 apart by abutting against the chamfer when the elastic expansion bag 9 expands.

[0091] The automatic closing water bag flood embankment structure suitable for riverbank areas provided in this embodiment has the following working process:

[0092] When the rainfall is heavy, the water level inside the river rises. When the water level inside the river rises until it covers the bottom drainage hole 1 or the upper drainage hole 2, the water inside the river will enter the first water collection well 3 through the drainage hole. At the same time, the ground water can also flow into the first water collection well 3 through the grille cover 10. At this time, the first water collection well 3 can play a role in water storage, and to a certain extent, it can share the pressure of the river to prevent the excessive amount of water inside the river from causing river flooding. When the water level inside the river drops, the water inside the first water collection well 3 can flow into the river again through the drainage hole.

[0093] When the rainfall is heavier, the water level inside the river channel rises, and as the water level inside the river channel rises, the water level inside the first water collection well 3 also rises, until the water level inside the first water collection well 3 exceeds the upper connecting hole 6, at which time the water inside the first water collection well 3 enters the second water collection well 4 through the upper connecting hole 6. Since the elastic expansion bladder 9 is fixed at the top of the second water collection well 4, when the water level inside the second water collection well 4 reaches the top of the second water collection well 4, at this time, due to the rising water level inside the river channel, the water inside the river channel will still flow into the second water collection well 4 through the first water collection well 3. During this process, the water inside the second water collection well 4 will continue to flow into the elastic expansion bladder 9, and the elastic expansion bladder 9 will expand and bulge due to the water inside it, until the elastic expansion bladder 9 expands to the upper side of the second water collection well 4, that is, the elastic expansion bladder 9 is on the upper side of the second water collection well 4 after it passes the upper opening of the second water collection well 4. At this time, Figure 4 As shown, after the elastic expansion bag 9 is filled with water, it can play a role in intercepting water, realizing the integration of small flood drainage and large flood interception.

[0094] When the water level in the river channel drops, the water in the second water collection well 4 flows into the first water collection well 3 through the upper connecting hole 6 and the lower connecting hole 5, and the water in the first water collection well 3 can flow into the river channel again through the drainage hole.

[0095] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. An automatically closed water bag flood embankment structure suitable for riverbank areas, characterized in that: include: A first water collection well (3) and a second water collection well (4) are dug outside the river channel, wherein the second water collection well (4) is located on a side of the first water collection well (3) away from the river channel; a plurality of drainage holes connecting the first water collection well (3) with the interior of the river channel, and a plurality of connecting holes connecting the second water collection well (4) with the first water collection well (3); An elastic expansion bag (9) fixed to the top of the inner part of the second water collection well (4); When water in the river channel flows from the first water collection well (3) into the second water collection well (4), the water fills up the second water collection well (4) and flows into the elastic expansion bag (9), thereby forcing the elastic expansion bag (9) to protrude from the inside of the second water collection well (4).

2. The automatically closed water bag flood embankment structure suitable for riverbank areas according to claim 1 is characterized in that: The drainage hole comprises a bottom drainage hole (1) and an upper drainage hole (2); the bottom drainage hole (1) is close to the bottom side of the first water collection well (3); and the upper drainage hole (2) is arranged on the upper side of the bottom drainage hole (1).

3. The automatically closed water bag flood embankment structure suitable for riverbank areas according to claim 2 is characterized in that: The drainage hole is arranged obliquely, and the opening of the drainage hole connected to one side of the river channel is inclined downward.

4. The automatically closed water bag flood embankment structure suitable for riverbank areas according to claim 2 is characterized in that: The communication hole comprises a lower communication hole (5) and an upper communication hole (6) arranged on the upper side of the lower communication hole (5); A one-way drainage valve (7) is provided at the end of the lower connecting hole (5) for only allowing liquid to flow into the first water collection well (3).

5. The automatically closed water bag flood embankment structure suitable for riverbank areas according to claim 4 is characterized in that: A filter screen (8) is provided at the end of the upper connecting hole (6).

6. The automatically closed water bag flood embankment structure suitable for riverbank areas according to claim 4 or 5, characterized in that: The opening height of the lower connecting hole (5) in the first water collection well (3) is higher than the opening height of the bottom drainage hole (1) in the first water collection well (3).

7. The automatically closed water bag flood embankment structure suitable for riverbank areas according to claim 6 is characterized in that: The connecting hole is arranged horizontally.

8. The automatically closed water bag flood embankment structure suitable for riverbank areas according to any one of claims 1 to 7, characterized in that: It also comprises a limiting component, which is arranged at the opening end of the second water collecting well (4) to limit the elastic expansion bag (9) to be inside the limiting component; When the elastic expansion bag (9) is filled with water to expand, the elastic expansion bag (9) is configured to flush open the limiting component.

9. The automatically closed water bag flood embankment structure suitable for riverbank areas according to claim 8, characterized in that: The limiting component comprises: Two groups of springs (12), the two groups of springs (12) are arranged on opposite sides of the opening end of the second water collection well (4), and the ends of the two groups of springs (12) that are away from each other are kept fixed; The two sealing plates (11) are respectively connected to the ends of the two groups of springs (12) that are close to each other. The two sealing plates (11) are pushed by the springs (12) to abut against each other to close the opening end of the second water collection well (4).

10. The automatically closed water bag flood embankment structure suitable for riverbank areas according to claim 9, characterized in that: The inner sides of the ends of the two sealing plates (11) that are close to each other are both provided with chamfers.

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