Portable movable cofferdam easy to store
The cofferdam designed with T-shaped connectors and hollow thin-walled structure solves the problem of large space occupation when the length of existing cofferdams is increased, and achieves compact storage and rapid assembly, improving space utilization and transportation efficiency.
Patent Information
- Application Number
- CN202520197237.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-08
AI Technical Summary
When increasing the length of existing cofferdams, several units need to be assembled, resulting in a fixed structural size, occupying a large amount of space, and having low efficiency in storage and transportation, as well as low utilization of unit space.
The design employs T-shaped connectors and a hollow thin-walled structure. The T-shaped connectors and connecting columns enable compact storage of the baffle, while the insertion holes and columns facilitate rapid assembly. Combined with a support mechanism and a water-blocking sealing plate, the stability and sealing performance are improved.
This design allows for a more compact cofferdam during storage, improving the utilization rate of unit space, reducing transportation costs, and enabling rapid assembly during use, thus enhancing stability and sealing.
Smart Images

Figure CN223838106U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of movable cofferdam technology, and in particular to a portable and easy-to-store movable cofferdam. Background Technology
[0002] A cofferdam is a temporary retaining structure built during the construction of hydraulic engineering projects to create permanent hydraulic facilities. Its function is to prevent water and soil from entering the construction site, allowing for drainage within the cofferdam, excavation of the foundation pit, and construction of the structure. It can also be used for emergency purposes such as flood control and disaster relief.
[0003] A utility model patent with publication number CN 220365028 U and publication date of January 19, 2024 discloses a flood control cofferdam structure, including a base. A buffer mechanism is provided on one side of the top of the base. The buffer mechanism includes a fixed plate. A buffer plate is provided on the outer wall of the fixed plate. Limiting rods are fixed at the four corners of the side wall of the buffer plate near the fixed plate. The limiting rods movably pass through the fixed plate. A first spring is fitted on the outer wall of the limiting rod. The two ends of the first spring are fixedly connected to the fixed plate and the buffer plate, respectively.
[0004] This utility model uses stabilizing piles to firmly insert the base into the flood control area, and sandbags are piled up inside the two rows of stabilizing piles to increase the weight, thereby making the sandbag stacking highly stable, thus avoiding the occurrence of flood control gaps and improving the flood control effect.
[0005] In actual use, this patent is mainly based on component units. When the length of the entire cofferdam needs to be increased, several units need to be assembled. However, the size of this type of cofferdam is fixed. During transportation and storage, this type of cofferdam will occupy a lot of space, and there will be a lot of idle space between the units that cannot be used. This results in a very limited number of units that can be stored and transported within a limited unit space, making it inconvenient to store.
[0006] Therefore, there is an urgent need for an easy-to-store and lightweight movable cofferdam to facilitate storage and transportation, increase the number of units that can be placed in a unit space during storage and transportation, and make storage convenient. Utility Model Content
[0007] To address the aforementioned technical problems, this utility model provides an easy-to-store and lightweight movable cofferdam. This solves the problem that when increasing the length of existing cofferdams, several units need to be assembled together. However, the structural size of such cofferdams is fixed. When transporting and storing, this type of cofferdam occupies a lot of space, and there is a lot of unused space between the units. This results in a very limited number of units that can be stored and transported within a limited unit space, making it inconvenient to store.
[0008] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0009] A portable and easy-to-store movable cofferdam includes a base, on which a first baffle and a plurality of second baffles are placed. The first baffle and the plurality of second baffles are perpendicular to each other, and both are hollow thin-walled structures.
[0010] The first baffle has a first connecting hole in the middle, and the second baffle has a second connecting hole on one side of the first connecting hole. The first connecting hole and the second connecting hole form a virtual T-shape. The first baffle and the second baffle are connected to a T-shaped connector through the first connecting hole and the second connecting hole. The T-shaped connector is provided with a connecting post.
[0011] The first baffle and the second baffle are respectively provided with insertion holes and insertion posts at both ends, and the first baffle and the second baffle are connected end to end through the insertion holes and insertion posts;
[0012] The base is provided with a first support mechanism, and the second baffle is provided with a second support mechanism.
[0013] Furthermore, the first support mechanism includes a plurality of partitions equidistantly arranged on the base, with a second baffle accommodating between two adjacent partitions.
[0014] Furthermore, one side of the partition is provided with a bevel, and the angle between the bevel and the base is 60 degrees.
[0015] Furthermore, the second support mechanism includes a support frame, one end of which is hinged to the second baffle and embedded within the second baffle.
[0016] Furthermore, the base is provided with a front limiting plate and a rear limiting plate at its front and rear ends, respectively, and the base is also provided with a first fixing hole, in which a first anchor is provided.
[0017] Furthermore, the support frame includes two support arms, and a connecting arm is provided between the two support arms. The connecting arm and the two support arms form a U-shaped structure.
[0018] Furthermore, a second fixing hole is provided on the connecting arm, and a second anchor is provided in the second fixing hole.
[0019] Furthermore, at least one receiving groove is provided on both sides of the first baffle and the second baffle that are close to each other, and a water-blocking sealing plate is provided in the receiving groove.
[0020] In summary, the beneficial technical effects of this utility model are as follows:
[0021] The first and second baffles are stored together on the base using T-shaped connectors. The overall structure after storage is more compact, avoiding extra empty space, improving the utilization rate of unit space, and facilitating storage and transportation. At the same time, the hollow thin-walled structure makes the entire cofferdam lighter when stored. In addition, the use of insertion holes and columns enables the rapid assembly of the first and second baffles during use. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a structural diagram of the T-type connector;
[0024] Figure 3 yes Figure 1 The diagram of the second baffle is hidden;
[0025] Figure 4 This is a schematic diagram of the second baffle.
[0026] Figure 5 This is a schematic diagram illustrating the use of this utility model;
[0027] Figure 6 yes Figure 5 A diagram from another angle.
[0028] Reference numerals: 1. Base; 2. First baffle; 3. Second baffle; 4. T-shaped connector; 5. First connecting hole; 6. Second connecting hole; 7. Connecting post; 8. Partition; 9. Insertion hole; 10. Inserting post; 11. Front limiting plate; 12. Rear limiting plate; 13. Receiving groove; 14. Support frame; 15. Support arm; 16. Connecting arm; 17. First fixing hole; 18. Second anchor; 19. Bevel; 20. Slot; 21. Water-blocking sealing plate. Detailed Implementation
[0029] The present invention will now be described clearly and completely with reference to the embodiments.
[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0031] In the description of the embodiments, unless otherwise expressly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. For example, it 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 a connection through an intermediate medium, or 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 based on the specific circumstances.
[0032] See appendix Figures 1-6 The image shows a portable and easily foldable movable cofferdam, comprising a base 1. A front limiting plate 11 and a rear limiting plate 12 are respectively located at the front and rear ends of the base 1. A first baffle 2 is located at one end of the base 1 near the front limiting plate 11. Multiple partitions 8 are equidistantly arranged on the base 1 perpendicular to the length of the first baffle 2. A second baffle 3 is placed between two adjacent partitions 8. A first connecting hole 5 is provided in the middle of the first baffle 2, and a second connecting hole 6 is provided on one side of the first connecting hole 5. The first connecting hole 5 and the second connecting hole 6 form a virtual T-shape. 2 and the second baffle 3 are equipped with T-shaped connectors 4 in cooperation with the first connecting hole 5 and the second connecting hole 6. The T-shaped connectors 4 are equipped with connecting posts 7 corresponding to the positions of the first connecting hole 5 and the second connecting hole 6. When stored, the first baffle 2 and the baffle are centrally stored on the base 1 by the T-shaped connectors 4 and the connecting posts 7 in cooperation with the first connecting hole 5 and the second connecting hole 6. This makes the overall structure after storage more compact, avoids the generation of empty space, improves the utilization rate of unit space during storage, allows more cofferdams to be placed in the same unit space, and also reduces the cost of transportation.
[0033] In addition, the stability of the second baffle 3 on the base 1 is improved by the partition 8, and a sloping side 19 is provided at the end of the partition 8 near the first baffle 2. The sloping side 19 and the base 1 are at a 60-degree angle. When in use, the first baffle 2 is tilted and leaned against the sloping side 19, which can increase the strength of the first baffle 2 when blocking water.
[0034] Furthermore, the left and right ends of the first baffle 2 and the second baffle 3 are respectively provided with insert posts 10 and insert holes 9. In use, quick assembly is achieved by the cooperation of the insert posts 10 and insert holes 9 on two adjacent first baffles 2 or second baffles 3. At the same time, in order to improve the structural strength of the second baffle 3 after assembly, a receiving groove 13 is provided on one side of the second baffle 3. A support frame 14 is provided in the receiving groove 13, and the support frame 14 includes two parallel support arms 15. One end of the two support arms 15 is hinged to the second baffle 3 through the receiving groove 13, and a connecting arm 16 is provided between the two support arms 15. When stored, the entire support arm 15 is embedded in the receiving groove 13. When in use, the second baffle 3 is tilted at the same angle as the first baffle 2 through the support arm 15.
[0035] Furthermore, in order to improve the connection between the first baffle 2 and the second baffle 3 and the ground when blocking water, a plurality of first fixing holes 17 are provided on the base 1, and a first anchor is provided in the first fixing hole 17. A second fixing hole is provided on the connecting arm 16, and a second anchor 18 is provided in the second fixing hole.
[0036] Furthermore, in order to increase the sealing performance of the entire cofferdam when blocking water and prevent excessive water from flowing between the first baffle 2 and the second baffle 3, slots 20 are provided on both sides of the first baffle 2 and the second baffle 3. Water-blocking sealing plates 21 are inserted into the slots 20. After assembly, the water-blocking sealing plates 21 are inserted into two adjacent slots 20. This not only improves the sealing performance of the cofferdam, but also increases the connectivity of adjacent structures through the water-blocking sealing plates 21.
[0037] Finally, to make storage easier, the first baffle 2 and the second baffle 3 adopt a hollow thin-walled structure, and the material can be hard plastic or glass fiber.
[0038] In use, firstly, one end of the first baffle 2 is snapped onto the front limiting plate 11, then the whole thing is tilted backward and rested on the inclined side 19 of the partition 8, and the first anchor is driven into the ground through the first fixing hole 17. Then, the first baffle 2 and multiple second baffles 3 are connected by using the insert post 10 and insert hole 9 on the first baffle 2 and the second baffle 3 in sequence. Next, the support frame 14 is pulled out from the receiving groove 13 and abutted against the ground. Finally, the second anchor 18 is driven into the second fixing hole. When storing, multiple second baffles 3 are placed one by one between adjacent partitions 8, and then, using the rear limiting plate 12 as a reference, one end of the second baffle 3 is abutted against the rear limiting plate 12. Finally, the connecting post 7 on the T-shaped connector 4 is snapped into the corresponding first connecting hole 5 and second connecting hole 6 to achieve storage.
[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape and principle of the present utility model should be included within the scope of protection of the present utility model.
Claims
1. A portable and easily stored movable cofferdam, characterized in that: Includes a base (1), on which a first baffle (2) and a plurality of second baffles (3) are placed, the first baffle (2) and the plurality of second baffles (3) being perpendicular to each other, and both being hollow thin-walled structures; The first baffle (2) has a first connecting hole (5) in the middle, and the second baffle (3) has a second connecting hole (6) on one side of the first connecting hole (5). The first connecting hole (5) and the second connecting hole (6) form a virtual T-shape. The first baffle (2) and the second baffle (3) are provided with T-shaped connectors (4) through the first connecting hole (5) and the second connecting hole (6). The T-shaped connectors (4) are provided with connecting posts (7). The first baffle (2) and the second baffle (3) are respectively provided with a socket (9) and a post (10) at both ends, and the first baffle (2) and the second baffle (3) are connected end to end through the socket (9) and the post (10); The base (1) is provided with a first support mechanism, and the second baffle (3) is provided with a second support mechanism.
2. The easily storable and lightweight movable cofferdam according to claim 1, characterized in that: The first support mechanism includes a plurality of partitions (8) equidistantly arranged on the base (1), and a second baffle (3) is accommodated between two adjacent partitions (8).
3. The easily storable and lightweight movable cofferdam according to claim 2, characterized in that: The partition (8) has a sloping edge (19) on one side, and the angle between the sloping edge (19) and the base (1) is 60 degrees.
4. The easily storable and lightweight movable cofferdam according to claim 1, characterized in that: The second support mechanism includes a support frame (14), one end of which is hinged to the second baffle (3) and embedded in the second baffle (3).
5. The easily storable and lightweight movable cofferdam according to claim 1, characterized in that: The base (1) has a front limiting plate (11) and a rear limiting plate (12) at its front and rear ends respectively. The base (1) also has a first fixing hole (17) with a first anchor nail inside.
6. The easily storable and lightweight movable cofferdam according to claim 4, characterized in that: The support frame (14) includes two support arms (15), and a connecting arm (16) is provided between the two support arms (15). The connecting arm (16) and the two support arms (15) form a U-shaped structure.
7. The easily storable and lightweight movable cofferdam according to claim 6, characterized in that: The connecting arm (16) has a second fixing hole, and the second fixing hole is equipped with a second anchor (18).
8. The easily storable and lightweight movable cofferdam according to claim 1, characterized in that: At least one receiving groove (13) is provided on both sides of the first baffle (2) and the second baffle (3) that are close to each other, and a water-blocking sealing plate (21) is provided in the receiving groove (13).
Citation Information
Patent Citations
Flood prevention cofferdam structure
CN220365028U