Assembly type water retaining cofferdam

Abstract

The utility model discloses an assembled water retaining cofferdam, including base, be equipped with the baffle on the base, be equipped with the support frame with fixed connection on the base, be equipped with the crossbeam with fixed connection on the support frame, open first perforation on the base, open second perforation on the crossbeam, be equipped with the support rod in first perforation and second perforation, the support rod is cooperated with the baffle, the baffle is set up as zigzag, the baffle lower extreme is equipped with the guide inclined piece, open sliding slot on the baffle, the both ends of sliding slot are equipped with the limiting board, be equipped with the lifting plate with sliding connection on the sliding slot, open limiting sliding slot on the both ends of lifting plate, limiting sliding slot and limiting board sliding cooperation, the lifting plate front end buoyancy air bag, and this equipment is more stable to retain water, and is convenient to store, is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of urban flood control and drainage technology, specifically to a prefabricated water-retaining cofferdam used in underground spaces such as underground garages or subway station entrances to block rainwater accumulation during heavy rain. Background Technology

[0002] Underground parking garages, subway station entrances, and other underground spaces located in low-lying areas are prone to rainwater backflow during heavy rains, causing significant property damage and even casualties. Therefore, installing temporary water-retaining structures at the entrances and exits of these critical underground spaces has become an important flood prevention and disaster reduction measure.

[0003] Currently, common water-blocking structures on the market (such as water-blocking plates, sandbags, etc.) have many shortcomings in practical applications:

[0004] First, the existing water-retaining structures suffer from weak inter-module connections and poor overall stability. Commonly used modular structures typically involve only simple planar contact or shallow interlocking between adjacent units, lacking reliable interlocking or fastening mechanisms. This loose connection makes it difficult for the entire cofferdam to form a cohesive whole, with its stability overly reliant on the counterweight of each unit. Once subjected to water flow impact, gaps easily form at the joints, potentially leading to unit misalignment, overturning, and the creation of leakage channels, severely impacting the water-retaining effect.

[0005] Secondly, traditional water-retaining structures have a fixed height and cannot adapt to rising water levels. The water-retaining capacity of a cofferdam is determined by its own height. Setting excessively high baffles to prevent extreme situations results in a bulky and cumbersome structure, making transportation and installation extremely inconvenient; while baffles that are too low will be easily submerged when the water level rises rapidly, leading to protective failure. This fixed-height design cannot intelligently respond to dynamic changes in water conditions, limiting its effective application range.

[0006] Furthermore, many emergency flood barriers (such as sandbags) are disposable or quasi-disposable, difficult to disassemble, and cannot be reliably reused, resulting in material waste and increased long-term flood control costs. Even reusable flood barriers are often difficult to deploy and recover quickly due to their complex structures and cumbersome disassembly and assembly processes, failing to meet the requirements of efficient emergency response.

[0007] In conclusion, there is an urgent need for a new type of water-blocking structure that can ensure tight connections and overall structural stability to withstand water flow impacts; at the same time, it should be able to overcome the limitations of fixed height, adapt to rising water levels, achieve higher water-blocking capacity and better portability; in addition, it should also have the characteristics of quick assembly and disassembly and reusability to improve emergency response efficiency and economy. Utility Model Content

[0008] The purpose of this invention is to provide a prefabricated water-retaining cofferdam to solve the problems mentioned in the background art.

[0009] A prefabricated water-retaining cofferdam includes a base, a baffle plate on the base, a support frame fixedly connected to the base, a crossbeam fixedly connected to the support frame, a first through hole on the base, a second through hole on the crossbeam, a support rod in the first and second through holes, the support rod cooperating with the baffle plate, the baffle plate being zigzag in the horizontal front-back direction, and a guide inclined block at the lower end of the baffle plate;

[0010] The baffle is provided with a sliding groove, and the two ends of the sliding groove are provided with limiting plates. A lifting plate is slidably connected to the sliding groove, and the two ends of the lifting plate are provided with limiting sliding grooves. The limiting sliding grooves and the limiting plates are slidably engaged. The front end of the lifting plate is a floating airbag.

[0011] The present invention is further configured such that one end of the baffle and the lifting plate is provided with a connecting slide bar, and the other end is provided with a connecting slide groove. The connecting slide bar cooperates with the connecting slide groove. One end of the connecting slide bar is provided with a fastening hook bar, and the connecting slide groove is provided with a fastening hook groove. The fastening hook bar and the fastening hook groove slide together, making the connection between adjacent water-retaining cofferdams more stable.

[0012] The present invention is further provided that a sealing strip is provided in the connecting groove, and the sealing strip cooperates with the connecting strip to improve the sealing effect and prevent water leakage.

[0013] The present invention is further configured such that a mounting sleeve is provided on the back of the baffle, and the mounting sleeve slides in cooperation with the support frame, so that the baffle and the support frame are more stable.

[0014] The present invention is further configured such that a contact block is provided on the back of the baffle, and a support groove is provided on the contact block, and the support rod cooperates with the support groove to make the cooperation between the baffle and the support rod more stable.

[0015] The present invention is further provided that the lower end of the support rod is provided with an anti-slip cone, and multiple sets of the anti-slip cone are provided and evenly distributed at the bottom of the support rod to make the support rod more stable.

[0016] The present invention is further provided with a sealing gasket at the lower part of the lifting plate to improve the waterproof effect.

[0017] The present invention is further provided with a reinforcing frame on the back of the baffle to improve the strength of the baffle.

[0018] By adopting the above technical solutions, better performance of the water-retaining cofferdam has been achieved.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This prefabricated water-retaining cofferdam for water conservancy construction provides a supporting structure through the cooperation of a base, a support frame, and a crossbeam. It provides an additional supporting structure through the cooperation of a first perforation, a second perforation, and a support rod. In cooperation with the baffle, the baffle remains stable and withstands the impact of water flow. Through the cooperation of a guide block and a tortuous baffle, the baffle receives downward pressure when subjected to the impact of water flow, allowing the guide block to press the baffle down, thus keeping the water-retaining cofferdam stable. In cooperation with the inclined support rod, the stability effect is further improved, resisting backward displacement.

[0020] The connection structure is provided by the sliding groove, the limiting plate and the limiting sliding groove, so that the lifting plate can slide with the baffle as a movable water-blocking structure. The floating airbag cooperates with the lifting plate, so that the lifting plate can move upward as the water level rises, cooperate with the baffle to form a higher water-blocking structure. When the equipment is not in use, the lifting plate is lowered, and the baffle and the base are detachable, which reduces the size of the equipment, makes it convenient for workers to carry and use, and facilitates the work of workers.

[0021] By connecting the sliding strip and the connecting groove, a connecting structure is provided, allowing adjacent baffles and lifting plates to be combined together. The connection is made more stable by fastening the hook strip and the fastening hook groove, making it impossible for the baffles and lifting plates to be broken by simple impacts. This makes the connection between adjacent water-retaining cofferdams more stable, preventing the water-retaining cofferdams from being washed away and separated, which would cause water to flow through the water-retaining cofferdam equipment and make the water-retaining function more stable. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the front structure of a prefabricated water-retaining cofferdam according to the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the back of the baffle and the base in this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the baffle plate after disassembly and its assembly with the base in this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the bottom of the baffle and the lifting plate in this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the back of the baffle and the support rod in this utility model.

[0027] In the diagram: 1. Base; 2. Baffle; 3. Support frame; 4. Crossbeam; 5. First through hole; 6. Second through hole; 7. Support rod; 8. Guide ramp; 9. Sliding groove; 10. Limiting plate; 11. Lifting plate; 12. Limiting groove; 13. Connecting slide bar; 14. Connecting groove; 15. Fastening hook bar; 16. Fastening hook groove; 17. Sealing strip; 18. Mounting sleeve; 19. Contact block; 20. Support groove; 21. Anti-slip cone; 22. Sealing gasket; 23. Reinforcing frame; 101. Floating airbag. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figure 1-5 A prefabricated water-retaining cofferdam includes a base 1, a baffle 2 on the base 1, a support frame 3 fixedly connected to the base 1, a crossbeam 4 fixedly connected to the support frame 3, a first through hole 5 on the base 1, a second through hole 6 on the crossbeam 4, a support rod 7 in the first through hole 5 and the second through hole 6, the support rod 7 cooperating with the baffle 2, the baffle 2 being zigzag in the horizontal front-back direction, and a guide inclined block 8 at the lower end of the baffle 2;

[0032] A sliding groove 9 is provided on the baffle 2, and a limiting plate 10 is provided at both ends of the sliding groove 9. A lifting plate 11 is slidably connected on the sliding groove 9, and a limiting sliding groove 12 is provided at both ends of the lifting plate 11. The limiting sliding groove 12 and the limiting plate 10 are slidably engaged. A floating airbag 101 is located at the front end of the lifting plate 11.

[0033] In this embodiment, a support structure is provided by the base 1, and the baffle 2 is installed on the base 1. The support frame 3 and the crossbeam 4 cooperate to provide a support structure, and the crossbeam 4 will improve the structural strength of the support frame 3. The support rod 7 is inserted through the first through hole 5 and the second through hole 6, so that one end of the support rod 7 passes through the first through hole 5 and contacts the ground, and the other end passes through the second through hole 6 and cooperates with the baffle 2 to support the baffle 2. When blocking the water flow, the tortuous baffle 2 contacts the water flow, which can inhibit the water flow to the periphery, and the water flow will contact the guide inclined block 8, applying pressure to the inclined surface of the guide inclined block 8, so that the baffle 2 is pressed downward, making the installation more stable. With the support of the support rod 7, the baffle 2 can block water more stably.

[0034] More specifically, the structure provided by the sliding groove 9 allows the installation of the lifting plate 11. As the water flow is blocked, the blocked water accumulates, the water level rises, and it comes into contact with the floating airbag 101. The floating airbag 101 moves with the water surface, providing buoyancy and causing the lifting plate 11 to rise. The lifting plate 11 is kept stable by the cooperation of the limiting plate 10 and the limiting sliding groove 12. In cooperation with the sliding groove 9, the lifting plate 11 and the baffle 2 provide a higher water blocking capacity.

[0035] Please see Figure 1-4 As one embodiment of the connection and cooperation: one end of the baffle 2 and the lifting plate 11 is provided with a connecting slide 13, and the other end is provided with a connecting slide groove 14. The connecting slide 13 cooperates with the connecting slide groove 14. One end of the connecting slide 13 is provided with a fastening hook 15, and a fastening hook groove 16 is provided in the connecting slide groove 14. The fastening hook 15 and the fastening hook groove 16 slide in cooperation.

[0036] Specifically, the connecting slide 13 and the connecting slide groove 14 cooperate to provide a connecting structure. By inserting the connecting slide 13 into the connecting slide groove 14, the baffle 2 and the lifting plate 11 of the adjacent equipment can be connected together to form a whole. When subjected to water flow impact, the fastening hook 15 will hook the fastening hook groove 16, so that the connecting slide 13 and the connecting slide groove 14 are tightly combined together to prevent them from being washed away by the water flow.

[0037] Please see Figures 1-3 As a further embodiment of the connecting slide groove: a sealing strip 17 is provided in the connecting slide groove 14, and the sealing strip 17 cooperates with the connecting slide 13.

[0038] Specifically, when subjected to water flow impact, the connecting slide 13 applies pressure to one side of the connecting slide groove 14, cooperating with the inner wall of the connecting slide groove 14 to clamp the sealing strip 17, thereby providing a sealing effect through the sealing strip 17 to prevent water from seeping through the water-blocking structure from the connected gap.

[0039] Please see Figures 1-3As a further embodiment of the baffle: the back of the baffle 2 is provided with a mounting sleeve 18, which is slidably engaged with the support frame 3.

[0040] Specifically, when installing the baffle 2, the support frame 3 passes through the mounting sleeve 18 and is stably connected to the baffle 2 to maintain stability.

[0041] Please see Figure 5 As a further embodiment of the baffle: the back of the baffle 2 is provided with a contact block 19, and a support groove 20 is provided on the contact block 19, and the support rod 7 cooperates with the support groove 20.

[0042] Specifically, the contact block 19 and the support groove 20 cooperate to provide a combined structure, allowing the support rod 7 to be inserted into the support groove 20, so that the support rod 7 and the baffle 2 can cooperate more stably.

[0043] Please see Figure 5 As a further embodiment of the support rod: the lower end of the support rod 7 is provided with an anti-slip cone 21, and multiple sets of anti-slip cones 21 are provided and evenly distributed at the bottom of the support rod 7.

[0044] Specifically, the anti-slip cones 21 provide an anti-slip effect. In muddy conditions, the anti-slip cones 21 will partially insert into the ground, making the support rod 7 more stable. In hard environments, the uneven surface provided by a large number of anti-slip cones 21 will also increase friction, making the support rod 7 more stable.

[0045] Please see Figure 4 As a further embodiment of the lifting plate: a sealing gasket 22 is provided at the lower part of the lifting plate 11.

[0046] Specifically, the sealing gasket 22 provides a sealing capability to prevent water from flowing through the gap between the lifting plate 11 and the baffle 2.

[0047] Please see Figure 3 As a further embodiment of the baffle, a reinforcing frame 23 is provided on the back of the baffle 2.

[0048] Specifically, the support structure is improved by reinforcing frame 23, making the structure of baffle 2 stronger.

[0049] In summary, during the use or operation of the overall equipment:

[0050] The base 1 provides a support structure, and the baffle 2 is installed on the base 1. The support frame 3 and the crossbeam 4 cooperate to provide a support structure, and the crossbeam 4 increases the structural strength of the support frame 3. The support rod 7 is inserted through the first through hole 5 and the second through hole 6, so that one end of the support rod 7 passes through the first through hole 5 and contacts the ground, and the other end passes through the second through hole 6 and cooperates with the baffle 2. The support frame 3 passes through the mounting sleeve 18 and is stably connected to the baffle 2 to maintain stability. The contact block 19 and the support groove 20 cooperate to provide a combined structure, so that the support rod 7 is inserted into the support groove 20. The support rod 7 and the baffle 2 are more stably matched to support the baffle 2. The anti-slip cones 21 provide an anti-slip effect. In muddy environments, the anti-slip cones 21 will partially insert into the ground, making the support rod 7 more stable. In hard environments, the uneven surface provided by the numerous anti-slip cones 21 will also increase the friction, making the support rod 7 more stable. In addition, the connecting slide 13 and the connecting groove 14 cooperate to provide a connecting structure. By inserting the connecting slide 13 into the connecting groove 14, the baffle 2 and the lifting plate 11 of the adjacent equipment can be connected together to form a whole.

[0051] When resisting water flow, the tortuous baffle 2 contacts the water flow, which can inhibit the water flow to the surrounding area. The water flow will also contact the guide ramp 8, applying pressure to the inclined surface of the guide ramp 8, causing the baffle 2 to press downward, making the installation more stable. With the support of the support rod 7, the baffle 2 can more stably block water. The reinforcing frame 23 improves the support structure, making the structural strength of the baffle 2 higher. The sliding groove 9 provides the structure for installing the lifting plate 11. As the water flow is resisted, the blocked water gathers, the water level rises, and it will come into contact with the floating airbag 101. The floating airbag 101 moves with the water level, providing buoyancy, causing the lifting plate 11 to rise. Through the cooperation of the limiting plate 10 and the limiting sliding groove 12, the water flow is further stabilized. The rising of the lifting plate 11 remains stable and cooperates with the sliding groove 9. Through the cooperation of the lifting plate 11 and the baffle 2, a higher water blocking capacity is provided. The sealing gasket 22 provides a sealing capacity to prevent water from flowing through the gap between the lifting plate 11 and the baffle 2. Moreover, between adjacent baffles 2 and lifting plates 11, the fastening hook 15 will hook the fastening hook groove 16, so that the connecting slide 13 and the connecting slide groove 14 are tightly combined to prevent them from being separated by water flow. When subjected to water flow impact, the connecting slide 13 will apply pressure to one side of the connecting slide groove 14, cooperate with the inner wall of the connecting slide groove 14, and clamp the sealing strip 17. The sealing strip 17 provides a sealing effect to prevent water from seeping through the water blocking structure from the connected gap.

[0052] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A prefabricated water-retaining cofferdam, comprising a base (1), wherein a baffle (2) is provided on the base (1), characterized in that: A support frame (3) is fixedly connected to the base (1), and a crossbeam (4) is fixedly connected to the support frame (3). A first through hole (5) is opened on the base (1), and a second through hole (6) is opened on the crossbeam (4). A support rod (7) is provided in the first through hole (5) and the second through hole (6). The support rod (7) cooperates with the baffle (2). The baffle (2) is set in a zigzag shape in the horizontal front-back direction. A guide inclined block (8) is provided at the lower end of the baffle (2). The baffle (2) is provided with a sliding groove (9), and the two ends of the sliding groove (9) are provided with limiting plates (10). A lifting plate (11) is slidably connected to the sliding groove (9). The two ends of the lifting plate (11) are provided with limiting grooves (12). The limiting grooves (12) and the limiting plates (10) are slidably engaged. The front end of the lifting plate (11) is provided with a floating airbag (101).

2. The prefabricated water-retaining cofferdam according to claim 1, characterized in that: One end of the baffle (2) and the lifting plate (11) is provided with a connecting slide bar (13), and the other end is provided with a connecting slide groove (14). The connecting slide bar (13) cooperates with the connecting slide groove (14). One end of the connecting slide bar (13) is provided with a fastening hook bar (15), and a fastening hook groove (16) is provided in the connecting slide groove (14). The fastening hook bar (15) and the fastening hook groove (16) are slidably engaged.

3. The prefabricated water-retaining cofferdam according to claim 2, characterized in that: The connecting groove (14) is provided with a sealing strip (17), which cooperates with the connecting strip (13).

4. The prefabricated water-retaining cofferdam according to claim 1, characterized in that: The back of the baffle (2) is provided with an mounting sleeve (18), which is slidably engaged with the support frame (3).

5. A prefabricated water-retaining cofferdam according to claim 4, characterized in that: The back of the baffle (2) is provided with a contact block (19), and a support groove (20) is provided on the contact block (19). The support rod (7) cooperates with the support groove (20).

6. A prefabricated water-retaining cofferdam according to claim 1, characterized in that: The lower end of the support rod (7) is provided with an anti-slip cone (21), and multiple sets of the anti-slip cone (21) are provided and evenly distributed at the bottom of the support rod (7).

7. A prefabricated water-retaining cofferdam according to claim 2, characterized in that: The lower part of the lifting plate (11) is provided with a sealing gasket (22).

8. A prefabricated water-retaining cofferdam according to claim 1, characterized in that: The back of the baffle (2) is provided with a reinforcing frame (23).

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