Modular assembled flood prevention retaining wall device

Abstract

The application belongs to the technical field of flood prevention, and discloses a modular assembled flood prevention retaining wall device, which comprises a retaining wall in the shape of "L" and hollow.The application is characterized in that a pressure bearing mechanism and an air bag are arranged in cooperation, water flow impact on the pressure bearing cabin makes the rubber layer deform, the air inside the pressure bearing cabin pushes the air bag to expand outward into the sealing groove, sealing is realized, and the response speed of the air bag is improved, that is, the greater the water pressure, the greater the force with which the air inside the pressure bearing cabin pushes the air bag to expand outward, and the better the sealing effect, since the air bag is soft as a whole, it can fill the sealing groove more completely, the poor sealing effect of the round corner part of the retaining wall is avoided, the problem of structural assembly deviation or insufficient production precision is adaptively compensated, irregular gaps generated after the deformation of the retaining wall due to water pressure can be filled, the defect that the traditional sealing rubber strip cannot adjust with the change of the gap due to insufficient rigidity is compensated, and the continuous adhesion of the sealing interface is maintained.

Description

Technical Field

[0001] This invention belongs to the field of flood control technology, specifically a modular and assembled flood control retaining wall device. Background Technology

[0002] Modular, assembled flood control retaining walls are emergency water-retaining facilities widely used in urban flood control, river embankment reinforcement, underground space entrance sealing, and low-lying area protection. These retaining walls are constructed by sequentially assembling multiple standard-sized baffle modules using locking mechanisms. They can be flexibly combined according to the actual protection length to form a continuous water barrier. The main body material of the baffle modules is typically aluminum alloy, stainless steel, or high-strength engineering plastics, balancing lightweight handling requirements with structural strength requirements, facilitating rapid deployment and reuse during the flood season. Adjacent baffle modules are typically connected using snap-fit ​​connections, plug-in structures, flange and groove fittings, or bolt fastening. Sealing strips or rubber gaskets are installed at the joints to prevent water leakage from the module connections.

[0003] In practical flood control applications, the baffle modules bear significant water pressure loads under flood impact. After prolonged pressure, the baffle body undergoes a certain degree of elastic deformation and slight displacement, causing changes in the shape and position of the joints between adjacent modules. Existing technologies typically rely solely on a single structural sealing strip for sealing these joints, lacking the ability to adaptively compensate for changes in the gaps. When the baffle deforms, the sealing strip, which was originally tightly fitted to the groove, cannot adjust its position and compression accordingly, resulting in gaps at the sealing interface and a significant decrease in sealing effectiveness. This deformation-induced sealing failure allows water to continuously leak from the module connection gaps, potentially causing the retaining wall foundation to be eroded by the water flow, leading to the collapse of the retaining wall and rendering the entire protection system ineffective in preventing flooding. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a modular, assembled flood control retaining wall device. This solves the problem that existing methods for sealing gaps between retaining walls are too simplistic. When the retaining wall is subjected to a large water pressure load, the sealing strip cannot tightly fit the original groove, resulting in sealing failure and continuous water leakage from the gap.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a modular assembled flood control retaining wall device, comprising an "L"-shaped and hollow retaining wall, wherein a pressure-bearing mechanism is installed on the side of the retaining wall that bears water pressure, and a locking mechanism for locking another retaining wall is installed at one end of the retaining wall. The pressure-bearing mechanism includes a pressure-bearing chamber that extends through one side of the retaining wall. The outer periphery of the pressure-bearing chamber is made of a rubber layer. The side of the pressure-bearing chamber that bears water pressure is connected to the interior of the retaining wall through a set of spring telescopic rods. The fixed end of the spring telescopic rods extends through the other side of the pressure-bearing chamber. The two sides inside the pressure-bearing chamber are connected by two symmetrically arranged elastic elements. The locking mechanism is used to limit the position of the pressure chamber; The other side of the pressure chamber is connected to the interior of the retaining wall. Two airbags are installed inside the retaining wall, and directional grooves for the two airbags to expand outward are provided on both the inner and outer sides of the outer perimeter of the retaining wall. The other end of the retaining wall is provided with a sealing groove that matches the two directional grooves.

[0006] Preferably, the two directional grooves are "L" shaped and adapted to the shape of the retaining wall, and the end face of the airbag in its initial state is attached to the directional grooves.

[0007] Preferably, the retaining wall is equipped with two sets of telescopic rods that are perpendicular to each other. The two sets of telescopic rods are respectively fitted to the vertical and horizontal planes of the retaining wall. The two telescopic rods in each set are symmetrically designed, and the ends of each telescopic rod are respectively connected to the outer ends of the corresponding airbags.

[0008] Preferably, the stiffness of the rubber layer is greater than that of the airbag, and the deformation of the rubber layer is less than that of the airbag when subjected to the same amount of external pressure.

[0009] Preferably, the locking mechanism includes a support plate that extends through one end of the retaining wall, and two symmetrically designed wedge blocks are fixed on both sides of the support plate. Each wedge block has a second wedge block that is slidably engaged on its inclined surface. The second wedge block is made of plastic. The other end of the retaining wall is symmetrically provided with two locking grooves for the entry of the wedge block.

[0010] Preferably, the shape of the bearing plate is adapted to the shape of the retaining wall, and the two symmetrically arranged wedge blocks one and two wedge blocks form a group, with the two groups of wedge blocks one and two wedge blocks respectively fitting the vertical and horizontal surfaces of the bearing plate; The two symmetrically arranged locking grooves form a set, and the two sets of locking grooves are located on the vertical and horizontal planes inside the other end of the retaining wall, respectively.

[0011] Preferably, the locking mechanism further includes several elastic elements II, each of which is connected to one end of each wedge block I and the interior of the retaining wall.

[0012] Preferably, the retaining wall has two interconnected independent chambers inside, and the pressure-bearing mechanism and the airbag are located in the two chambers respectively; The locking mechanism also includes a sealing plate installed at the end of the support plate, which is used to seal and open the two chambers.

[0013] Preferably, the locking mechanism further includes two locking devices symmetrical to the sides of the sealing plate; The locking device includes two positioning rods symmetrically arranged on the side of the sealing plate. Each positioning rod has a set of positioning blocks installed at equal intervals at its bottom, and the two sets of positioning blocks are staggered. The pressure-bearing mechanism also includes a set of positioning grooves equidistantly arranged on the outer edge of the pressure chamber.

[0014] Preferably, in the two sets of staggered positioning blocks, when the lock moves for the first time, one set of positioning blocks penetrates the positioning groove, and the spring telescopic rod pushes the pressure chamber to move outward, with only one side of the pressure chamber located inside the retaining wall and the rest located outside the retaining wall. When the lock moves for the second time, the other set of positioning blocks prevents one side of the pressure chamber from retracting into the retaining wall.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes a combination of a pressure-bearing mechanism and an airbag. Water flow impacts the pressure chamber, causing deformation of the rubber layer. The air inside the pressure chamber pushes the airbag outwards into the sealing groove, achieving a seal. Simultaneously, it improves the airbag's response speed; the greater the water pressure, the greater the force pushing the airbag outwards, resulting in a better seal. Due to the airbag's relatively soft nature, it can fill the sealing groove more completely, avoiding poor sealing at the rounded corners of the retaining wall. Furthermore, it adaptively compensates for structural assembly deviations or insufficient production precision, and can fill irregular gaps caused by water pressure deformation of the retaining wall. This overcomes the shortcomings of traditional sealing strips, which lack rigidity and cannot adjust to changes in gaps, maintaining a continuous seal at the interface.

[0016] This invention, through the cooperation of locking and pressure-bearing mechanisms, allows for manual pressing of the pressure chamber and pulling out of the other pressure chamber when the retaining wall needs to be removed. During this process, the bearing plate is simultaneously pushed outward by the second elastic element, meaning the bearing plate moves the locking device through the sealing plate. One set of positioning blocks preferentially aligns with the positioning groove. Because the pressure chamber is supported by the first elastic element, the side of the pressure chamber quickly disengages from the positioning block and returns to its initial position. At this point, the retaining wall is pulled out again, the bearing plate returns to its initial position, and the other set of positioning grooves locks the side of the pressure chamber. This prevents the rubber layer from being exposed to the outside for a long time, thus accelerating aging or being scratched by foreign objects. It also reduces storage space. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2This is a cross-sectional schematic diagram of the upper structure of the retaining wall of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the cross-sectional plan of the internal structure of the retaining wall of the present invention; Figure 6 This is a schematic diagram of the airbag and telescopic rod structure of the present invention. Figure 7 This is a schematic diagram of the cooperation between the sealing plate and the locking device structure of the present invention; Figure 8 This is a schematic diagram illustrating the cooperation between the locking device and the top structure of the pressure-bearing mechanism of the present invention. Figure 1 ; Figure 9 This is a schematic diagram illustrating the cooperation between the locking device and the top structure of the pressure-bearing mechanism of the present invention. Figure 2 ; Figure 10 For the present invention Figure 9 Enlarged diagram of point C in the middle.

[0018] In the diagram: 1. Retaining wall; 11. Locking groove; 12. Sealing groove; 2. Pressure bearing mechanism; 21. Pressure chamber; 22. Rubber layer; 23. Spring telescopic rod; 24. Elastic element one; 25. Positioning groove; 3. Locking mechanism; 31. Bearing plate; 311. Sealing plate; 32. Wedge block one; 33. Elastic element two; 34. Wedge block two; 35. Locking device; 351. Positioning rod; 352. Positioning block; 4. Airbag; 41. Telescopic rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 10 As shown, the present invention provides a modular assembled flood control retaining wall device, including an "L"-shaped and hollow retaining wall 1, a pressure-bearing mechanism 2 installed on the side of the retaining wall 1 that bears water pressure, and a locking mechanism 3 for locking another retaining wall 1 installed at one end of the retaining wall 1. The pressure-bearing mechanism 2 includes a pressure chamber 21 that extends through one side of the retaining wall 1. The outer periphery of the pressure chamber 21 is made of a rubber layer 22. The side of the pressure chamber 21 that bears water pressure is connected to the interior of the retaining wall 1 through a set of spring telescopic rods 23. The fixed end of the spring telescopic rods 23 extends through the other side of the pressure chamber 21. The two sides inside the pressure chamber 21 are connected by two symmetrically arranged elastic elements 24. The stiffness of the rubber layer 22 is greater than that of the airbag 4. When subjected to the same amount of external pressure, the deformation of the rubber layer 22 is less than that of the airbag 4.

[0021] Locking mechanism 3 is used to limit the position of pressure chamber 21; The other side of the pressure chamber 21 is connected to the interior of the retaining wall 1. Two airbags 4 are installed inside the retaining wall 1. The inner and outer sides of the outer perimeter of the retaining wall 1 are provided with directional grooves for the two airbags 4 to expand outward. The other end of the retaining wall 1 is provided with a sealing groove 12 that is compatible with the two directional grooves.

[0022] The two directional grooves are "L" shaped and adapted to the shape of the retaining wall 1. The end face of the airbag 4 in its initial state is attached to the directional groove.

[0023] Using the above solution: insert one end of retaining wall 1 with locking mechanism 3 into the other end of another retaining wall 1, so that locking mechanism 3 locks the two retaining walls 1; During this period, when the retaining wall 1 is pushed for the first time, the locking mechanism 3 will release the lock on the pressure chamber 21, causing the spring telescopic rod 23 to push the pressure chamber 21 outward. After the movement is completed, the retaining wall 1 is pushed again, and the locking mechanism 3 completely completes the locking work. At the same time, the locking mechanism 3 restricts the position of the pressure chamber 21, so that the pressure chamber 21 cannot move into the retaining wall 1. At this time, only one side of the pressure chamber 21 is inside the retaining wall 1, and the rubber layer 22 is outside the retaining wall 1, i.e. the impact surface; When a flood comes, the water flow will immediately impact the outside of the pressure chamber 21, causing it to shift. The rubber layer 22 will deform, meaning that the volume inside the pressure chamber 21 will be compressed. Since the opening on the side of the retaining wall 1 for the movement of the pressure chamber 21 has been blocked by the side of the pressure chamber 21, the air inside will not leak out from the gap between the opening of the retaining wall 1 and the rubber layer 22, and the water flow will not enter the interior of the retaining wall 1. The air will then enter the interior of the retaining wall 1 and push the airbag 4 to expand rapidly outward into the sealing groove 12 in the next retaining wall 1, thereby achieving the sealing purpose and improving the response speed of the airbag 4, reducing the amount of infiltration in the early stage of the flood. During this period, because the airbag 4 is made of flexible material and has a relatively soft overall characteristic, it can fill the interior of the sealing groove 12 relatively completely, avoiding the situation where the rounded corner of the barrier wall 1 cannot be sealed or the sealing effect is poor. It can also provide adaptive compensation for structural assembly deviations or insufficient production precision. It should also be noted that the airbag 4 has flexible deformation capability after inflation, which can fill the irregular gaps caused by the deformation of the retaining wall 1 due to water pressure, make up for the defect of traditional sealing strips that cannot adjust with the changes in gaps due to insufficient rigidity, and maintain the continuous fit of the sealing interface. Furthermore, the inflation power of the airbag 4 comes from the deformation of the pressure chamber 21, and the deformation of the pressure chamber 21 comes from the impact of the water flow. That is, the higher the water level or the greater the pressure of the water flow, the more the pressure chamber 21 is compressed, and the greater the force that the air inside pushes the airbag 4 to expand outward. The better the sealing effect formed by its cooperation with the sealing groove 12, thus forming a self-reinforcing effect, without the need for additional power. When the flood recedes, the elastic element 24 pushes the two sides of the pressure chamber 21, so that the pressure chamber 21 and the rubber layer 22 return to their initial state. The airbag 4 automatically detaches from the sealing groove 12 and returns to the interior of the retaining wall 1, avoiding the problem of disassembly difficulties and further improving the disassembly efficiency of the device.

[0024] like Figures 1-7 As shown, two sets of telescopic rods 41 are installed inside the retaining wall 1 in a perpendicular state. The two sets of telescopic rods 41 are respectively fitted to the vertical and horizontal planes of the retaining wall 1. The two telescopic rods 41 in each set are symmetrically designed, and the ends of each telescopic rod 41 are respectively connected to the outer ends of the corresponding airbags 4.

[0025] The above scheme is adopted: when the air pressure pushes the airbag 4 to expand outward, it will simultaneously drive the end of the telescopic rod 41 to extend outward. The telescopic rod 41 is fixedly installed and has a fixed extension direction, which can guide the expansion direction of the airbag 4 to only face the inside of the sealing groove 12, thereby ensuring the stability of the sealing work and reducing the instability factors under the impact of flood. At the same time, after the telescopic rod 41 enters the sealing groove 12, it also has the effect of simply locking the two retaining walls 1, preventing the two retaining walls 1 from separating from each other under the impact of water flow.

[0026] like Figures 1-7 As shown, the locking mechanism 3 includes a support plate 31 that extends through one end of the retaining wall 1. Two symmetrically designed wedge blocks 32 are fixed on both sides of the support plate 31. Each wedge block 32 has a wedge block 34 that slides onto its inclined surface. The wedge block 34 is made of plastic. Two locking grooves 11 are symmetrically arranged inside the other end of the retaining wall 1 for the entry of the wedge block 2 34.

[0027] The shape of the bearing plate 31 is adapted to the shape of the retaining wall 1. Two symmetrically arranged wedge blocks 1 32 and wedge blocks 2 34 form a group. The two groups of wedge blocks 1 32 and wedge blocks 2 34 respectively fit the vertical and horizontal surfaces of the bearing plate 31. Two symmetrically arranged locking grooves 11 form a group, and the two groups of locking grooves 11 are located on the vertical and horizontal planes inside the other end of the retaining wall 1, respectively.

[0028] The above solution is adopted: such as Figure 5 As shown, when one of the retaining walls 1 is connected to another retaining wall 1, the bearing plate 31 is compressed into the interior of the retaining wall 1. During this process, the wedge block 32 on the bearing plate 31 pushes the wedge block 34 outward through the inclined surface and enters the corresponding locking groove 11. The wedge block 34 is made of plastic and has a certain amount of deformability at its end. Therefore, the wedge block 34 will only enter the locking groove 11 after the two retaining walls 1 are fully connected, thereby increasing the smoothness of its operation and preventing jamming. After docking is completed, wedge block 2 34 will lock the two retaining walls 1, thereby preventing the two retaining walls 1 from separating due to the impact of water flow.

[0029] like Figures 1-7 As shown, the locking mechanism 3 also includes several elastic elements 33, each elastic element 33 being connected to one end of each wedge block 32 and the interior of the retaining wall 1.

[0030] The above scheme is adopted: After the flood control work is completed and the flood recedes, the two retaining walls 1 are directly removed. During this process, the second wedge block 34 deforms in the locking groove 11, and the second elastic element 33 pulls the first wedge block 32, so that the bearing plate 31 can extend outward, and then the second wedge block 34 retracts into the retaining wall 1 by relying on the interaction of the inclined surfaces of the first wedge block 32, so as to achieve the purpose of dismantling. This further prevents the wedge block 34 from failing to exit the locking groove 1 due to deformation caused by water flow impacting the retaining wall 1.

[0031] like Figures 1-7 As shown, the interior of the retaining wall 1 has two interconnected independent chambers, and the pressure-bearing mechanism 2 and the airbag 4 are located in the two chambers respectively; The locking mechanism 3 also includes a sealing plate 311 installed at the end of the support plate 31, which is used to block and open the two chambers.

[0032] The above solution is adopted: such as Figure 5 As shown, when the bearing plate 31 is squeezed and moved, the bearing plate 31 simultaneously drives the sealing plate 311 to shift, and no longer blocks the connection between the two chambers inside the retaining wall 1. That is, after the pressure chamber 21 is squeezed, the air inside enters the retaining wall 1, and will push the airbag 4 to expand outward due to the change in air pressure inside the retaining wall 1. When the flood recedes, the pressure chamber 21 returns to its initial position, that is, the air inside the retaining wall 1 is extracted, so that the air compression is reduced, and the airbag 4 returns to the inside of the retaining wall 1 instead of remaining outside the retaining wall 1, further preventing the airbag 4 from being punctured by external foreign objects or aging accelerated.

[0033] like Figures 1-10 As shown, the locking mechanism 3 also includes two locking devices 35 symmetrical to the sides of the sealing plate 311; The locking device 35 includes two positioning rods 351 symmetrically arranged on the side of the sealing plate 311. Each positioning rod 351 has a set of positioning blocks 352 installed at equal intervals at its bottom, and the two sets of positioning blocks 352 are staggered. The pressure-bearing mechanism 2 also includes a set of positioning grooves 25 that are equidistantly arranged on the outer edge of the pressure chamber 21.

[0034] In the two sets of staggered positioning blocks 352, when the locker 35 moves for the first time, one set of positioning blocks 352 passes through the positioning groove 25, and the spring telescopic rod 23 pushes the pressure chamber 21 to move outward, and only one side of the pressure chamber 21 is located inside the retaining wall 1, while the rest is located outside the retaining wall 1. When the locker 35 moves for the second time, the other set of positioning blocks 352 blocks one side of the pressure chamber 21 from retracting into the retaining wall 1.

[0035] Using the above scheme: When it is necessary to remove the retaining wall 1, manually press the pressure chamber 21 and pull out another retaining wall 1. During this process, the bearing plate 31 is simultaneously pushed outward by the elastic element 2 33. That is, the bearing plate 31 drives the locking device 35 to move through the sealing plate 311. One set of positioning blocks 352 preferentially overlaps with the positioning groove 25. Because the inside of the pressure chamber 21 is supported by the elastic element 1 24, the side of the pressure chamber 21 quickly disengages from the positioning block 352 and returns to the initial position. At this time, continue to pull out the retaining wall 1, and the bearing plate 31 returns to the initial position. The other set of positioning blocks 352 can lock the side of the pressure chamber 21, thereby preventing the rubber layer 22 from being exposed to the outside for a long time, which would accelerate aging or be scratched by foreign objects. At the same time, it also reduces the storage space.

[0036] Working principle and usage process of this invention: When the end of the retaining wall 1 with the locking mechanism 3 is inserted into the other end of the other retaining wall 1, the bearing plate 31 is compressed into the interior of the retaining wall 1. The wedge block 32 pushes the wedge block 34 outward and into the corresponding locking groove 11. After the docking is completed, the wedge block 34 locks the two retaining walls 1 to prevent them from separating due to the impact of the water flow. During this period, when the locker 35 moves for the first time, one set of positioning blocks 352 passes through the positioning groove 25, and the spring telescopic rod 23 pushes the pressure chamber 21 to move outward. Only one side of the pressure chamber 21 is inside the retaining wall 1, and the rest is outside the retaining wall 1. When the locker 35 moves for the second time, the other set of positioning blocks 352 blocks one side of the pressure chamber 21 from retracting into the retaining wall 1. When the flood impacts the outside of the pressure chamber 21, the rubber layer 22 deforms, that is, the volume inside the pressure chamber 21 is compressed, and air then enters the interior of the baffle wall 1 and pushes the airbag 4 to expand rapidly outward into the sealing groove 12 in the next baffle wall 1, thereby achieving a seal.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular, assembled flood control retaining wall device, characterized in that: It includes an "L"-shaped and hollow retaining wall (1), a pressure-bearing mechanism (2) is installed on the side of the retaining wall (1) that bears water pressure, and a locking mechanism (3) for locking another retaining wall (1) is installed at one end of the retaining wall (1). The pressure-bearing mechanism (2) includes a pressure chamber (21) that extends through one side of the retaining wall (1). The outer periphery of the pressure chamber (21) is made of a rubber layer (22). The side of the pressure chamber (21) that bears water pressure is connected to the interior of the retaining wall (1) through a set of spring telescopic rods (23). The fixed end of the spring telescopic rods (23) extends through the other side of the pressure chamber (21). The two sides inside the pressure chamber (21) are connected by two symmetrically arranged elastic elements (24). The locking mechanism (3) is used to limit the position of the pressure chamber (21); The other side of the pressure chamber (21) is connected to the interior of the retaining wall (1). Two airbags (4) are installed inside the retaining wall (1). The inner and outer sides of the outer perimeter of the retaining wall (1) are provided with directional grooves for the two airbags (4) to expand outward. The other end of the retaining wall (1) is provided with a sealing groove (12) that is compatible with the two directional grooves. The locking mechanism (3) includes a support plate (31) that extends through one end of the retaining wall (1). Two symmetrically designed wedge blocks (32) are fixed on both sides of the support plate (31). Each wedge block (32) has a wedge block (34) that slides onto its inclined surface. The wedge block (34) is made of plastic. The other end of the retaining wall (1) is symmetrically provided with two locking grooves (11) for the entry of the wedge block (34). The retaining wall (1) has two interconnected independent chambers inside, and the pressure-bearing mechanism (2) and the airbag (4) are located in the two chambers respectively; The locking mechanism (3) also includes a sealing plate (311) installed at the end of the support plate (31), the sealing plate (311) being used to seal and open the two chambers; The locking mechanism (3) also includes two lockers (35) symmetrical to the sides of the sealing plate (311); The locking device (35) includes two positioning rods (351) symmetrically arranged on the side of the sealing plate (311). Each positioning rod (351) has a set of positioning blocks (352) installed at equal intervals at its bottom. The two sets of positioning blocks (352) are staggered. The pressure-bearing mechanism (2) also includes a set of positioning grooves (25) equidistantly arranged on the outer edge of the pressure chamber (21).

2. The modular assembled flood control retaining wall device according to claim 1, characterized in that: The two directional grooves are "L" shaped and adapted to the shape of the retaining wall (1), and the end face of the airbag (4) in the initial state is attached to the directional groove.

3. The modular assembled flood control retaining wall device according to claim 1, characterized in that: The retaining wall (1) is equipped with two sets of telescopic rods (41) that are perpendicular to each other. The two sets of telescopic rods (41) are respectively fitted to the vertical and horizontal planes of the retaining wall (1). The two telescopic rods (41) in each set are symmetrically designed, and the ends of each telescopic rod (41) are respectively connected to the outer ends of the corresponding airbags (4).

4. The modular assembled flood control retaining wall device according to claim 1, characterized in that: The stiffness of the rubber layer (22) is greater than that of the airbag (4), and the deformation of the rubber layer (22) is less than that of the airbag (4) when subjected to the same amount of external pressure.

5. The modular assembled flood control retaining wall device according to claim 1, characterized in that: The shape of the bearing plate (31) is adapted to the shape of the retaining wall (1). Two symmetrically arranged wedge blocks one (32) and two wedge blocks two (34) form a group. The two groups of wedge blocks one (32) and two wedge blocks two (34) respectively fit the vertical and horizontal surfaces of the bearing plate (31). The two symmetrically arranged locking grooves (11) form a set, and the two sets of locking grooves (11) are located on the vertical and horizontal planes inside the other end of the retaining wall (1), respectively.

6. The modular assembled flood control retaining wall device according to claim 5, characterized in that: The locking mechanism (3) also includes several elastic elements (33), each of which connects each wedge block (32) to one end of the wall (1) inside.

7. The modular assembled flood control retaining wall device according to claim 1, characterized in that: In the two sets of staggered positioning blocks (352), when the lock (35) moves for the first time, one set of positioning blocks (352) penetrates the positioning groove (25), and the spring telescopic rod (23) pushes the pressure chamber (21) to move outward, and only one side of the pressure chamber (21) is located inside the retaining wall (1), while the rest is located outside the retaining wall (1). When the lock (35) moves for the second time, the other set of positioning blocks (352) blocks one side of the pressure chamber (21) from retracting into the retaining wall (1).

Images