Cofferdam for hydraulic engineering construction

By designing a combination of modular cofferdam structure and supporting diagonal struts, the problem of the inability to adjust the length of the cofferdam was solved, achieving the effect of flexibly adapting to different construction conditions and improving construction safety and transportation convenience.

CN224186788UActive Publication Date: 2026-05-01HUNAN MAOTIAN CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN MAOTIAN CONSTR ENG CO LTD
Filing Date
2025-05-14
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing cofferdams cannot be lengthened according to different construction environments, resulting in an inability to flexibly adapt to different construction conditions, increasing construction costs and time. Furthermore, traditional cofferdam structures are bulky, occupy a large amount of space, and are not easy to disassemble and fold.

Method used

A modular panel structure was designed, which can be extended in length by locking components. Combined with supporting diagonal braces and struts, it forms a stable triangular support and can be folded into a panel structure for easy transportation.

Benefits of technology

The cofferdam length is adjustable, which improves the flexibility and safety of construction, while also facilitating transportation and storage.

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Abstract

The cofferdam for the water conservancy project construction comprises a surrounding plate, the surrounding plate is vertically arranged, the back side of the surrounding plate is rotationally connected with a supporting inclined rod and a supporting rod, the movable end of the supporting inclined rod is connected with a supporting bottom plate, and the movable end of the supporting rod is provided with a connecting piece connected with the supporting bottom plate; the left sides and the right sides of the coamings are spliced with one another, and the back sides of the coamings are provided with locking pieces fixed to the adjacent coamings. The device has the beneficial effects that the coamings can be spliced and connected through the locking pieces, free extension of the length is achieved, and the requirements of different-scale construction are met; the movable ends of the supporting inclined rods and the supporting rods are connected to form a stable triangular structure for supporting the coaming, so that the bearing capacity of the coaming is enhanced, the coaming is prevented from inclining or displacing, and the safety and reliability of the cofferdam in the construction process are improved; and after use, the supporting inclined rods and the supporting rods can be rotated to be close to the surrounding plate and can be folded into a plate-shaped structure, so that movement and transportation are facilitated.
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Description

A cofferdam for water conservancy project construction Technical Field

[0001] This utility model relates to the field of water conservancy engineering construction, specifically to a cofferdam for water conservancy engineering construction. Background Technology

[0002] A cofferdam is a temporary water-blocking structure used in hydraulic engineering, typically constructed from materials such as earth and rock, steel plates, or concrete. Its main function is to isolate the construction area from the surrounding water, preventing water flow from affecting the construction process and ensuring the smooth progress of the project. Cofferdams effectively reduce water leakage, control water levels, and provide a dry environment for construction.

[0003] Existing cofferdams typically cannot be adjusted in length to suit different construction environments. This makes them inflexible in adapting to varying construction conditions or project scales, potentially requiring replacement or adjustments to the entire cofferdam structure, thus increasing construction costs and time. Furthermore, traditional cofferdam structures are relatively bulky, occupying significant space during transportation and storage, and are not easily disassembled or folded. Summary of the Invention

[0004] The purpose of this utility model is to provide a cofferdam for water conservancy engineering construction in order to solve the above-mentioned problems, as detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This utility model provides a cofferdam for water conservancy construction, including a cofferdam panel, which is vertically arranged. A supporting diagonal rod and a strut are rotatably connected to the back side of the cofferdam panel. A supporting base plate is connected to the movable end of the supporting diagonal rod, and a connecting piece is provided at the movable end of the strut to connect with the supporting base plate.

[0007] The multiple enclosure panels are spliced ​​together on the left and right sides, and the back side of each enclosure panel is provided with a locking device for fixing to the adjacent enclosure panel.

[0008] As a preferred embodiment, the left and right sides of the enclosure are respectively provided with slot seats and plug seats, and the slot seats on two adjacent enclosures are plugged into the plug seats.

[0009] As a preferred embodiment, both the slot seat and the insert seat are disposed on the back side of the enclosure, and the locking member, the supporting diagonal rod, and the strut are disposed between the slot seat and the insert seat.

[0010] As a preferred embodiment, both the slot seat and the plug seat have trapezoidal cross sections, and both are made of rubber.

[0011] As a preferred embodiment, the locking member is right-angled, with one end rotatably connected to the surrounding plate, and the movable end of the locking member is threadedly connected to a fixing bolt corresponding to the insert seat.

[0012] As a preferred embodiment, there are multiple locking members, which are evenly distributed along the height direction of the enclosure.

[0013] As a preferred embodiment, the bottom of the support base plate is provided with multiple insert rods.

[0014] As a preferred embodiment, the connector is threaded to the end of the support rod away from the enclosure, and the two ends of the support base plate are provided with threaded holes that match the connector.

[0015] The beneficial effects are:

[0016] The enclosure panels can be spliced ​​together using locking devices to allow for free expansion of length, meeting the needs of construction projects of different scales.

[0017] The movable ends of the supporting diagonal rods and struts are connected to form a stable triangular structure that supports the cofferdam, which enhances the load-bearing capacity of the cofferdam, prevents it from tilting or shifting, and improves the safety and reliability of the cofferdam during construction.

[0018] Furthermore, after use, the support diagonal rods and struts can be rotated close to the enclosure and folded into a plate-like structure for easy movement and transportation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 is a schematic diagram of the back side of the enclosure of this utility model;

[0021] Figure 2 is a right view of Figure 1;

[0022] Figure 3 is a schematic diagram of the internal structure of Figure 1 from the right view;

[0023] Figure 4 is a top view of Figure 1.

[0024] The annotations in the attached figures are explained as follows:

[0025] 1. Enclosure panel; 101. Slot seat; 102. Insert block seat; 2. Locking component; 201. Fixing bolt; 3. Supporting diagonal brace; 4. Supporting base plate; 401. Insert rod; 5. Support rod; 501. Connecting component. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] First embodiment:

[0028] Referring to Figures 1-4, this utility model provides a cofferdam for water conservancy construction, including a cofferdam 1, which is vertically arranged. A supporting diagonal rod 3 and a strut 5 are rotatably connected to the back side of the cofferdam 1. A supporting base plate 4 is connected to the movable end of the supporting diagonal rod 3. A connecting piece 501 connected to the supporting base plate 4 is provided at the movable end of the strut 5.

[0029] Multiple enclosure panels 1 are spliced ​​together on the left and right sides, and the back of the enclosure panel 1 is provided with a locking piece 2 for fixing to the adjacent enclosure panel 1;

[0030] When the device is in use, multiple side panels 1 can be spliced ​​together on the left and right sides. With the locking part 2, the adjacent side panels 1 can be connected and fixed, which can increase the length of the entire side panel 1. With the rotation of the support diagonal rod 3, the support base plate 4 can rotate away from the side panel 1. When the support rod 5 rotates to correspond with the support base plate 4, the connector 501 is used to connect with the support base plate 4. Then the support diagonal rod 3, side panel 1 and support rod 5 form a triangular structure, which can form a stable support for the side panel 1 and improve the support effect of the side panel 1.

[0031] The second embodiment differs from the first embodiment in that:

[0032] The left and right sides of the enclosure 1 are respectively provided with slot seats 101 and plug seats 102. The slot seats 101 and plug seats 102 on two adjacent enclosures 1 are inserted and engaged. When the two enclosures 1 are spliced ​​together, the slot seats 101 and plug seats 102 on the two enclosures 1 are aligned. The insertion of the slot seats 101 and plug seats 102 is used to realize the insertion of the two adjacent enclosures 1. Furthermore, the locking member 2 is used to reinforce the connection position of the two adjacent enclosures 1.

[0033] Furthermore, both the slot seat 101 and the insert seat 102 are located on the back side of the enclosure 1, and the locking member 2, the support rod 3, and the strut 5 are located between the slot seat 101 and the insert seat 102. With this arrangement, when the device is stored, the support rod 3 and the strut 5 can be rotated to the slot seat 101 and the insert seat 102 on the back side of the enclosure 1 by means of rotation and folding. The device as a whole forms a plate-like structure, which helps in the storage and transportation of the device.

[0034] Both the slot seat 101 and the plug seat 102 have trapezoidal cross sections and are made of rubber. The rubber material of the slot seat 101 and the plug seat 102 provides a better sealing effect, and the trapezoidal shape of the slot seat 101 and the plug seat 102 makes them more stable after being plugged in.

[0035] The third embodiment differs from the first embodiment in that:

[0036] The locking member 2 is right-angled, with one end rotatably connected to the surrounding plate 1. The movable end of the locking member 2 is threaded with a fixing bolt 201 corresponding to the insert seat 102. After the slot seats 101 and insert seats 102 on the two surrounding plates 1 continue to be inserted and corresponded, the locking member 2 rotates so that the bent end of the locking member 2 corresponds to the insert seat 102 on the other surrounding plate 1. After the fixing bolt 201 is tightened, the inner end of the fixing bolt 201 extends toward the insert seat 102, and the fixing bolt 201 can be used to press and fix the slot seats 101 and the insert seat 102.

[0037] Furthermore, there are multiple locking parts 2, and the locking parts 2 are close to the slot seat 101 and are evenly distributed along the height direction of the enclosure 1. Multiple locking parts 2 can be used to assist the connection between the insert seat 102 and the slot seat 101 on the two enclosures 1, resulting in a good connection effect and a good blocking effect on water flow.

[0038] The fourth embodiment differs from the first embodiment in that:

[0039] The bottom of the support base plate 4 is provided with multiple insertion rods 401. When the device is in use, especially in soil or mud, the insertion rods 401 can be used to assist the support base plate 4 in being inserted into the soil for auxiliary fixation, thereby improving the support strength of the device. Furthermore, in the connection structure between the support rod 5 and the support base plate 4, the connector 501 is threadedly connected to the end of the support rod 5 away from the surrounding plate 1. The two ends of the support base plate 4 are provided with threaded holes that match the connector 501. When the support rod 5 is rotated and it corresponds to the support base plate 4, the connector 501 corresponds to the threaded hole on the support base plate 4. By screwing the connector 501, the inner end of the connector 501 can extend into the threaded hole on the support base plate 4, thereby achieving the connection with the support base plate 4. The overall operation is simple, practical and convenient.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A cofferdam for water conservancy project construction, comprising a cofferdam panel (1), characterized in that: The enclosure (1) is vertically arranged. The back side of the enclosure (1) is rotatably connected to a supporting diagonal rod (3) and a strut (5). The movable end of the supporting diagonal rod (3) is connected to a supporting base plate (4). The movable end of the strut (5) is provided with a connector (501) that connects to the supporting base plate (4). Multiple enclosures (1) are spliced ​​together on the left and right sides. The back side of the enclosure (1) is provided with a locking member (2) that is fixed to the adjacent enclosure (1).

2. A cofferdam for water conservancy engineering construction according to claim 1, characterized in that: The left and right sides of the enclosure (1) are respectively provided with slot seats (101) and plug seats (102), and the slot seats (101) on two adjacent enclosures (1) are plugged into each other.

3. A cofferdam for water conservancy engineering construction according to claim 2, characterized in that: The slot seat (101) and the insert seat (102) are both located on the back side of the enclosure (1), and the locking member (2), the supporting diagonal rod (3) and the strut (5) are all located between the slot seat (101) and the insert seat (102).

4. A cofferdam for water conservancy engineering construction according to claim 3, characterized in that: The slot seat (101) and the plug seat (102) both have trapezoidal cross sections, and the slot seat (101) and the plug seat (102) are made of rubber.

5. A cofferdam for water conservancy engineering construction according to claim 2 or 3, characterized in that: The locking member (2) is right-angled, with one end rotatably connected to the enclosure plate (1), and the movable end of the locking member (2) is threaded with a fixing bolt (201) corresponding to the insert seat (102).

6. A cofferdam for water conservancy engineering construction according to claim 5, characterized in that: There are multiple locking members (2), and they are evenly distributed along the height direction of the enclosure (1).

7. A cofferdam for water conservancy engineering construction according to claim 1, characterized in that: The bottom of the support base plate (4) is provided with multiple insert rods (401).

8. A cofferdam for water conservancy engineering construction according to claim 7, characterized in that: The connector (501) is threaded to the end of the support rod (5) away from the enclosure (1), and the support base plate (4) has threaded holes at both ends that match the connector (501).