Cofferdam structure for hydraulic building construction

By introducing anchoring, connection, sealing and protection measures into the cofferdam structure, the problems of insufficient construction speed, environmental protection and economy of traditional cofferdams have been solved, and faster, more environmentally friendly and more economical construction results have been achieved.

CN224213342UActive Publication Date: 2026-05-08HUNAN KAIYUAN HYDROPOWER CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN KAIYUAN HYDROPOWER CONSTR ENG CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Traditional cofferdams have shortcomings in terms of construction speed, environmental friendliness, and economy.

Method used

The cofferdam structure, composed of anchoring mechanisms, connecting mechanisms, supporting frames, waterproof fabric, and sealing mechanisms, improves construction speed and environmental friendliness through anchoring, connecting, sealing, and protection measures.

Benefits of technology

It improved the construction speed and environmental friendliness of cofferdams, extended their service life, and enhanced their sealing and economic efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cofferdam structure for hydraulic building construction, and belongs to the field of hydraulic engineering, the cofferdam structure comprises a mounting plate, an anchoring mechanism is arranged at the bottom of the mounting plate, a connecting mechanism is arranged between the anchoring mechanism and the mounting plate, a bolt is in threaded connection with the surface of the mounting plate, and a cofferdam mechanism is arranged at the top of the mounting plate. The inserting blocks are inserted into the sliding grooves, the two adjacent supporting frames are spliced, then the positioning rods are supported through the first springs, the positioning rods are inserted into the fixing frames, the inserting blocks are positioned, and then the supporting frames are fixed to the surface of the mounting plate through the rotating bolts. The waterproof cloth covers the supporting frame and is fixed through the zipper, when river water rises, air in the waterproof cloth can be compressed, a certain pressure difference is formed, and therefore water flow is effectively prevented from entering a construction area, the problems that a traditional cofferdam structure still has many defects in the aspects of construction speed, environmental protection performance and economical efficiency are solved, and the construction efficiency is improved. And the practicability is improved.
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Description

Technical Field

[0001] This application relates to the field of water conservancy engineering technology, and in particular to a cofferdam structure for hydraulic engineering construction. Background Technology

[0002] Water conservancy projects are a general term for various engineering constructions undertaken to control, utilize, and protect surface and underground water resources and the environment. In the construction of hydraulic structures, in order to ensure the safety and smooth progress of the project, it is usually necessary to set up cofferdams to cut off the water flow and ensure that the construction area is not affected by water.

[0003] Currently, traditional cofferdams mostly take the form of earth-rock cofferdams and steel sheet pile cofferdams. While these traditional cofferdams can meet construction requirements to a certain extent, they still have many shortcomings in terms of construction speed, environmental protection, and economy. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a cofferdam structure for hydraulic engineering construction, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.

[0005] To achieve the above objectives, this application adopts the following technical solution: a cofferdam structure for hydraulic engineering construction, comprising an installation plate, an anchoring mechanism at the bottom of the installation plate, a connecting mechanism between the anchoring mechanism and the installation plate, bolts threadedly connected to the surface of the installation plate, a cofferdam mechanism at the top of the installation plate, the cofferdam mechanism comprising a support frame, the support frame being slidably connected to the installation plate, a waterproof fabric covering the outside of the support frame, a fixing frame fixedly connected to the surface of the support frame, a groove on one side of the fixing frame, an insertion block fixedly connected to the side of the fixing frame away from the groove, two positioning rods slidably connected inside the insertion block, the two positioning rods being symmetrically distributed inside the insertion block, a spring between the two positioning rods, a zipper on the surface of the waterproof fabric, a sealing mechanism on the surface of the waterproof fabric, and a protective mechanism on one side of the sealing mechanism.

[0006] In a preferred embodiment, the anchoring mechanism includes a concrete slab that is slidably connected to an mounting plate. The bottom of the concrete slab is provided with a plurality of ground nails that are evenly distributed on the bottom of the concrete slab.

[0007] By adopting the above technical solution, the concrete slab is fixed by fixing the ground nails, and then the ground nails are inserted into the ground to fix the concrete slab, which can better fix the concrete slab.

[0008] In a preferred embodiment, the connecting mechanism includes a fixing block, which is fixedly connected to a concrete slab. A positioning frame is fixedly connected to one side of the fixing block. A rod is slidably connected inside the positioning frame. A spring is sleeved on the outside of the rod. A slider is slidably connected inside the fixing block. The slider is fixedly connected to a mounting plate.

[0009] By adopting the above technical solution, the concrete slab and the mounting plate are connected by inserting the slider into the fixed block, the positioning frame limits the insertion rod, the spring supports the insertion rod, and the insertion rod is inserted into the slider to position the slider. This can better connect and fix the concrete slab and the mounting plate.

[0010] In a preferred embodiment, the sealing mechanism includes a sealing strip, which is rotatably connected to a waterproof fabric. A male Velcro fastener is fixedly connected to the surface of the sealing strip, and a female Velcro fastener is fixedly connected to the surface of the waterproof fabric.

[0011] By adopting the above technical solution, the sealing strip is fixed with waterproof fabric, and then the sealing strip is pulled to cover the surface of the zipper, which enhances the sealing performance of the zipper. Then, the male and female Velcro fasteners are attached to position the sealing strip, which can further enhance the sealing performance of the zipper.

[0012] In a preferred embodiment, the protective mechanism includes a UV-protective layer, which is fixedly connected to a waterproof fabric. An anti-oxidation layer is fixedly connected to one side of the UV-protective layer. The anti-oxidation layer is made of polyester fiber, and the UV-protective layer is made of titanium dioxide.

[0013] By adopting the above technical solution, using polyester fiber as the anti-oxidation layer to enhance the anti-oxidation properties of the waterproof fabric, and titanium dioxide as the UV protection layer to enhance the UV protection capability of the waterproof fabric, the waterproof fabric can be better protected and its service life extended.

[0014] In a preferred embodiment, the surface of the support frame is provided with a zinc plating.

[0015] By adopting the above technical solution, the surface of the support frame is coated with a zinc layer, which enhances the corrosion resistance of the support frame and extends its service life. This can better extend the service life of the support frame.

[0016] The beneficial effects of this application are:

[0017] 1. This cofferdam structure for hydraulic engineering construction comprises an insert block, positioning rods, springs, a fixing frame, a chute, a support frame, and waterproof fabric. The insert block is inserted into the chute, two adjacent support frames are spliced ​​together, and then supported by a pair of springs and positioning rods. The positioning rods are then inserted into the fixing frame to position the insert block. The support frame is then fixed to the surface of the mounting plate by rotating bolts. Finally, the waterproof fabric is covered onto the support frame and secured with zippers. When the river water rises, the air inside the waterproof fabric is compressed, creating a pressure difference that effectively prevents water from entering the construction area. This avoids the shortcomings of traditional cofferdam structures, which, while meeting construction requirements to some extent, still have many deficiencies in terms of construction speed, environmental protection, and economy. This invention improves practicality.

[0018] 2. This cofferdam structure for hydraulic engineering construction uses a combination of male and female Velcro straps. The sealing strip is fixed to the zipper by a waterproof fabric, and then pulled to cover the zipper surface, enhancing its sealing performance. The male and female Velcro straps are then bonded together to position the sealing strip. This design avoids the problem of traditional cofferdam structures failing to enhance the sealing performance of the waterproof fabric, thus improving practicality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the front structure of this application;

[0020] Figure 2 This is a schematic diagram of the cofferdam structure in this application;

[0021] Figure 3 This is a schematic diagram of the connection mechanism structure of this application;

[0022] Figure 4 This is a schematic diagram of the protection mechanism structure for this application.

[0023] Numbered in the diagram: 1. Mounting plate; 2. Cofferdam mechanism; 21. Insertion block; 22. Positioning rod; 23. Spring 1; 24. Fixing frame; 25. Slide groove; 26. Support frame; 27. Waterproof fabric; 3. Connecting mechanism; 31. Spring 2; 32. Positioning frame; 33. Insertion rod; 34. Sliding block; 35. Fixing block; 4. Anchoring mechanism; 41. Concrete slab; 42. Ground nail; 5. Sealing mechanism; 51. Male Velcro; 52. Sealing strip; 53. Female Velcro; 6. Protective mechanism; 61. UV-resistant layer; 62. Anti-oxidation layer; 7. Zipper; 8. Bolt. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0025] Reference Figures 1-3 A cofferdam structure for hydraulic engineering construction includes an installation plate 1. The bottom of the installation plate 1 is provided with an anchoring mechanism 4. The anchoring mechanism 4 includes a concrete plate 41, which is slidably connected to the installation plate 1. The bottom of the concrete plate 41 is provided with a plurality of ground nails 42, which are evenly distributed on the bottom of the concrete plate 41. The ground nails 42 are fixed by the concrete plate 41, and the concrete plate 41 is further fixed by inserting the ground nails 42 into the ground. This method can better fix the concrete plate 41.

[0026] Reference Figures 1-3 A connecting mechanism 3 is provided between the anchoring mechanism 4 and the mounting plate 1. Bolts 8 are threaded onto the surface of the mounting plate 1. The connecting mechanism 3 includes a fixing block 35, which is fixedly connected to the concrete slab 41. A positioning frame 32 is fixedly connected to one side of the fixing block 35. An insert rod 33 is slidably connected inside the positioning frame 32. A spring 31 is sleeved on the outside of the insert rod 33. A slider 34 is slidably connected inside the fixing block 35. The slider 34 is fixedly connected to the mounting plate 1. By inserting the slider 34 into the inside of the fixing block 35, the concrete slab 41 and the mounting plate 1 are connected. Then, the positioning frame 32 limits the insertion rod 33, the spring 31 supports the insertion rod 33, and the insertion rod 33 is inserted into the inside of the slider 34 to position the slider 34. This can better connect and fix the concrete slab 41 and the mounting plate 1.

[0027] Reference Figures 1-3 The top of the mounting plate 1 is provided with a cofferdam mechanism 2, which includes a support frame 26. The support frame 26 is slidably connected to the mounting plate 1. A waterproof fabric 27 is fitted over the support frame 26. A fixing bracket 24 is fixedly connected to the surface of the support frame 26. A groove 25 is provided on one side of the fixing bracket 24. An insertion block 21 is fixedly connected to the side of the fixing bracket 24 away from the groove 25. Two positioning rods 22 are slidably connected inside the insertion block 21. The two positioning rods 22 are symmetrically distributed inside the insertion block 21. A spring 23 is provided between the two positioning rods 22. The surface of the waterproof fabric 27... The zipper 7 is provided on the surface of the waterproof fabric 27, and a sealing mechanism 5 is provided on the surface of the waterproof fabric 27. The sealing mechanism 5 includes a sealing strip 52, which is rotatably connected to the waterproof fabric 27. A male Velcro 51 is fixedly connected to the surface of the sealing strip 52, and a female Velcro 53 is fixedly connected to the surface of the waterproof fabric 27. The sealing strip 52 is fixed by the waterproof fabric 27, and then the sealing strip 52 is pulled to cover the surface of the zipper 7, which enhances the sealing performance of the zipper 7. The male Velcro 51 and the female Velcro 53 are then attached to each other to position the sealing strip 52, which can further enhance the sealing performance of the zipper 7.

[0028] Reference Figure 4A protective mechanism 6 is provided on one side of the sealing mechanism 5. The protective mechanism 6 includes an ultraviolet-resistant layer 61, which is fixedly connected to the waterproof fabric 27. An anti-oxidation layer 62 is fixedly connected to one side of the ultraviolet-resistant layer 61. The anti-oxidation layer 62 is made of polyester fiber, and the ultraviolet-resistant layer 61 is made of titanium dioxide. By using polyester fiber for the anti-oxidation layer 62 to enhance the anti-oxidation properties of the waterproof fabric 27, and by using titanium dioxide for the ultraviolet-resistant layer 61 to enhance the ultraviolet protection capabilities of the waterproof fabric 27, the waterproof fabric 27 can be better protected, and its service life can be extended.

[0029] Reference Figure 2 The surface of the support frame 26 is coated with zinc. The zinc coating enhances the corrosion resistance of the support frame 26 and extends its service life.

[0030] Working principle: The concrete slab 41 is used to fix the ground nail 42, and then the ground nail 42 is inserted into the ground to fix the concrete slab 41. Then the slider 34 is inserted into the fixing block 35 to connect the concrete slab 41 and the mounting plate 1. Then the positioning frame 32 limits the insertion rod 33, and the spring 21 supports the insertion rod 33. Then the insertion rod 33 is inserted into the slider 34 to position the slider 34. Then the insertion block 21 is inserted into the groove 25 to splice the two adjacent support frames 26. Then the spring 1 23 supports the positioning rod 22, and the positioning rod 22 is inserted into the fixing frame 24 to position the insertion block 21. Finally, the rotating bolt 8 fixes the support frame 26 to the surface of the mounting plate 1. The waterproof fabric 27 is then covered onto the support frame 26 and secured with zippers 7. When the river water rises, the air inside the waterproof fabric 27 is compressed, creating a pressure difference that effectively prevents water from entering the construction area. The waterproof fabric 27 then secures the sealing strip 52. Pulling the sealing strip 52 causes it to cover the surface of the zipper 7, enhancing its sealing performance. The male and female Velcro straps 51 and 53 are then attached to position the sealing strip 52, further improving the zipper's sealing performance. The anti-oxidation layer 62, made of polyester fiber, enhances the anti-oxidation properties of the waterproof fabric 27. The UV-resistant layer 61, made of titanium dioxide, further enhances the UV protection of the waterproof fabric 27.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A cofferdam structure for hydraulic engineering construction, comprising an installation plate (1), characterized in that, The bottom of the mounting plate (1) is provided with an anchoring mechanism (4), and a connecting mechanism (3) is provided between the anchoring mechanism (4) and the mounting plate (1). Bolts (8) are threadedly connected to the surface of the mounting plate (1). A cofferdam mechanism (2) is provided at the top of the mounting plate (1). The cofferdam mechanism (2) includes a support frame (26). The support frame (26) is slidably connected to the mounting plate (1). Waterproof fabric (27) is sleeved on the outside of the support frame (26). A fixing frame (24) is fixedly connected to the surface of the support frame (26). A groove (25) is provided on one side of the fixed frame (24). An insertion block (21) is fixedly connected to the side of the fixed frame (24) away from the groove (25). Two positioning rods (22) are slidably connected inside the insertion block (21). The two positioning rods (22) are symmetrically distributed inside the insertion block (21). A spring (23) is provided between the two positioning rods (22). A zipper (7) is provided on the surface of the waterproof fabric (27). A sealing mechanism (5) is provided on the surface of the waterproof fabric (27). A protective mechanism (6) is provided on one side of the sealing mechanism (5).

2. The cofferdam structure for hydraulic engineering construction according to claim 1, characterized in that, The anchoring mechanism (4) includes a concrete slab (41), which is slidably connected to the mounting plate (1). The bottom of the concrete slab (41) is provided with a number of ground nails (42), which are evenly distributed on the bottom of the concrete slab (41).

3. The cofferdam structure for hydraulic engineering construction according to claim 2, characterized in that, The connecting mechanism (3) includes a fixing block (35), which is fixedly connected to the concrete slab (41). A positioning frame (32) is fixedly connected to one side of the fixing block (35). A plug rod (33) is slidably connected inside the positioning frame (32). A spring (31) is sleeved on the outside of the plug rod (33). A slider (34) is slidably connected inside the fixing block (35). The slider (34) is fixedly connected to the mounting plate (1).

4. The cofferdam structure for hydraulic engineering construction according to claim 1, characterized in that, The sealing mechanism (5) includes a sealing strip (52), which is rotatably connected to the waterproof fabric (27). The surface of the sealing strip (52) is fixedly connected with a Velcro male (51), and the surface of the waterproof fabric (27) is fixedly connected with a Velcro female (53).

5. The cofferdam structure for hydraulic engineering construction according to claim 1, characterized in that, The protective mechanism (6) includes an anti-ultraviolet layer (61), which is fixedly connected to a waterproof fabric (27). An anti-oxidation layer (62) is fixedly connected to one side of the anti-ultraviolet layer (61). The anti-oxidation layer (62) is made of polyester fiber, and the anti-ultraviolet layer (61) is made of titanium dioxide.

6. The cofferdam structure for hydraulic engineering construction according to claim 1, characterized in that, The surface of the support frame (26) is coated with zinc.