Cofferdam structure for construction

Abstract

The utility model belongs to the cofferdam technical field for building construction, specifically speaking is a kind of cofferdam structure for building construction, it includes: four groups of stand, the one side hinged of stand has first coaming, the one side hinged of first coaming has second coaming, the one side of second coaming is hinged with the one side of stand, two groups of positioning slots are all set up on four groups of stand, the bottom of first coaming and second coaming is all set up with the accommodation slot;By the outward pull of four groups of stand drive first coaming and second coaming unfold, four groups of stand are pulled to the utmost when outward, by the cooperation of spring, rubber pad and first bolt, to cofferdam structure installation fixed, after bolt dismounts, four groups of stand are pushed to the middle, make first coaming and second coaming fold, can complete the accommodation dismounting of cofferdam structure to, to shorten the time consumption when cofferdam structure is installed and disassembled, to improve water conservancy and hydropower engineering construction efficiency further.

Description

Technical Field

[0001] This utility model belongs to the field of cofferdam technology for building construction, specifically a cofferdam structure for building construction. Background Technology

[0002] The main function of cofferdam structures for construction is to protect the construction site and location of permanent buildings from water and soil, effectively preventing water and soil from interfering with construction, thereby accelerating the excavation of foundation pits and the pouring of concrete and ensuring their quality. Therefore, a cofferdam structure for construction is needed in the construction of water conservancy and hydropower projects.

[0003] A Chinese patent with authorization announcement number CN221441540U discloses a cofferdam structure for hydraulic engineering construction, including multiple supporting vertical plates and multiple cofferdam plates, as well as a pressing and plugging mechanism. This cofferdam structure for hydraulic engineering construction allows workers to simply step on a sliding pressure plate to insert a fixing rod into the bottom soil of the supporting base plate, thus fixing the supporting vertical plates. Compared to threaded screwing, this method saves time and effort, is easier for workers to operate, and correspondingly reduces the time spent by workers fixing and installing the cofferdam structure, thereby improving the work efficiency of workers using the cofferdam structure.

[0004] However, the above solutions still have some problems. The cofferdam is an integral structure that cannot be folded and disassembled, which makes the cofferdam assembly and use time-consuming and reduces construction efficiency. Therefore, a cofferdam structure for building construction is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes a cofferdam structure for building construction.

[0006] The technical solution adopted by this utility model to solve its technical problem is a cofferdam structure for building construction, including: four sets of columns, a first cofferdam plate hinged to one side of each column, a second cofferdam plate hinged to one side of the first cofferdam plate, and a side of the second cofferdam plate hinged to one side of each column. Each of the four sets of columns has two sets of positioning grooves. The bottom of each of the first and second cofferdam plates has a receiving groove. The two sets of positioning grooves are respectively opposite to the receiving grooves at the bottom of the first and second cofferdam plates. The first and second cofferdam plates are internally threaded with first bolts. A washer is installed on the first cofferdam plate, with the first bolt and washer in contact. Springs are fixedly connected inside each of the two sets of receiving grooves. A rubber pad is fixedly connected to one end of each spring. The rubber pad is movably connected to the receiving groove. Because the rubber pad can increase the friction with the inner wall of the positioning groove, it can initially fix the position of the first and second cofferdam plates.

[0007] Preferably, threaded holes are provided on one side of both sets of first and second enclosure plates, and a limit rod is provided between the first and second enclosure plates. The threaded holes cooperate with the first connecting plate, and the reinforcement component can be fixed to the inner wall of the cofferdam by means of the second bolt.

[0008] Preferably, the limiting rod is internally slidably connected to a first reinforcing rod, and a second reinforcing rod is hinged to one end of the first reinforcing rod. Both the second reinforcing rod and the limiting rod are hinged to a first connecting plate. Since both the second reinforcing rod and the limiting rod are hinged to the first connecting plate, the reinforcement assembly can be used to increase the included angle of the cofferdam at different degrees.

[0009] Preferably, the first connecting plate and the threaded hole are internally threaded with a second bolt, and the other end of the first reinforcing rod is fixedly connected to a limiting plate. The limiting plate is slidably connected inside the limiting rod, and the sliding range of the limiting plate is affected by the limiting rod, thereby preventing the first reinforcing rod from falling off.

[0010] Preferably, a second connecting plate is fixedly connected to one side of the second reinforcing rod, and an insert rod is fixedly connected to one side of the second connecting plate. A damping pad is fixedly connected to the outer side of one end of the insert rod. The damping pad passes through the positioning plate, thereby fixing the position of the insert rod and the second connecting plate, thereby making the first reinforcing rod and the second reinforcing rod collinear.

[0011] Preferably, a positioning plate is fixedly connected to one side of the first reinforcing rod, the insertion rod is movably connected inside the positioning plate, and a third bolt is threadedly connected to the limiting rod and the limiting plate. When the third bolt is screwed into the limiting rod and the limiting plate, the position of the first reinforcing rod can be fixed, thereby improving the support strength of the cofferdam.

[0012] The advantages of this utility model are as follows: by pulling the four sets of columns outward, the first and second enclosure panels are unfolded. When the four sets of columns are pulled outward to their maximum extent, the cofferdam structure is installed and fixed through the cooperation of springs, rubber pads and the first bolt. After the bolt is removed, the four sets of columns are pushed towards the middle, causing the first and second enclosure panels to fold, thus completing the storage and disassembly of the cofferdam structure. This reduces the time spent on the installation and disassembly of the cofferdam structure, thereby improving the construction efficiency of water conservancy and hydropower projects.

[0013] This invention uses a plug rod and a damping pad to fix the first and second reinforcing rods. A second bolt is used to connect the reinforcing assembly to the cofferdam. The exposed length of the second reinforcing rod can be adjusted according to the distance from the inner wall of the cofferdam. Then, a third bolt is used to fix its position, so that the first and second reinforcing rods are in a stable horizontal state. This can reinforce and support the inside of the cofferdam, thereby improving the stability of the cofferdam when it is subjected to water and soil impact from the outside, and thus ensuring the safety of construction. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the overall structure;

[0016] Figure 2 This is a schematic cross-sectional view of the overall structure;

[0017] Figure 3 This is a schematic cross-sectional view of the positioning component;

[0018] Figure 4 This is a schematic diagram of the reinforcement components;

[0019] Figure 5 This is a cross-sectional schematic diagram of the reinforcement component.

[0020] In the diagram: 1. Column; 2. First enclosure panel; 3. Second enclosure panel; 4. Positioning groove; 5. Storage groove; 6. First bolt; 7. Spring; 8. Rubber pad; 9. Washer; 10. Limiting rod; 11. First reinforcing rod; 12. Second reinforcing rod; 13. First connecting plate; 14. Second bolt; 15. Limiting plate; 16. Second connecting plate; 17. Insert rod; 18. Damping pad; 19. Positioning plate; 20. Third bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figure 1-5As shown, a cofferdam structure for building construction includes: four sets of columns 1, a first cofferdam 2 hinged to one side of each column 1, a second cofferdam 3 hinged to one side of each first cofferdam 2, and one side of each second cofferdam 3 hinged to one side of each column 1. Each of the four sets of columns 1 has two sets of positioning grooves 4. The bottom of each first cofferdam 2 and second cofferdam 3 has a storage groove 5. The two sets of positioning grooves 4 are respectively opposite to the storage grooves 5 at the bottom of the first cofferdam 2 and second cofferdam 3. The first bolts 6 are threadedly connected to the inside of the first cofferdam 2 and second cofferdam 3. A washer 9 is installed on the first cofferdam 2. The first bolts 6 are in contact with the washer 9. Springs 7 are fixedly connected inside each of the two sets of storage grooves 5. A rubber pad 8 is fixedly connected to one end of each spring 7. The rubber pad 8 is movably connected to the storage groove 5.

[0023] In the construction of water conservancy and hydropower projects, in order to prevent water and soil from entering the construction site, effectively avoid water and soil interference with construction, accelerate the progress of foundation pit excavation and concrete pouring, and ensure their quality, a cofferdam structure for construction is needed. In actual use, after the cofferdam structure is transported to the construction area, four sets of columns 1 are pulled outwards, making the four sets of columns 1 expand outwards in a square shape. At the same time, the first enclosure plate 2 and the second enclosure plate 3 rotate around the hinge point. When the four sets of columns 1 are pulled outwards to the extreme, the four sets of first enclosure plates 2 and second enclosure plates 3 and the four sets of columns 1 form a closed cuboid, and the bottom receiving groove 5 is opposite to the positioning groove 4. The pressure on the spring 7 decreases, and its own elasticity pushes the rubber pad 8 into the positioning groove 4. Because the rubber pad 8 can increase the friction with the inner wall of the positioning groove 4, the position of the first enclosure plate 2 and the second enclosure plate 3 can be initially fixed. Then the first bolt 6 is tightened. The bolt 6 is screwed into the first enclosure plate 2 and the second enclosure plate 3 to further secure the connection between them. The first bolt 6 is also attached to the washer 9, which improves the tightness of the connection between the first bolt 6 and the first enclosure plate 2 and the second enclosure plate 3, thereby improving the stability of the cofferdam structure. The cofferdam structure can then be unfolded to enclose the construction site of the water conservancy and hydropower project. After the construction is completed, the first bolt 6 is unscrewed, and then the four sets of columns 1 are pushed towards the middle, causing the first enclosure plate 2 and the second enclosure plate 3 to rotate inward again around the hinge point as the axis. This causes the first enclosure plate 2 and the second enclosure plate 3 to fold inward, while simultaneously causing the rubber pad 8 to move out of the positioning groove 4 and compressing the spring 7, so that both the rubber pad 8 and the spring 7 enter the storage groove 5. This releases the fixation of the cofferdam structure and allows the cofferdam structure to be stored, reducing the area occupied by the cofferdam structure and making it easier to dismantle the cofferdam structure from the construction site of the water conservancy and hydropower project.

[0024] Please see Figure 1-5As shown, threaded holes are opened on one side of both sets of first enclosure plates 2 and two sets of second enclosure plates 3. A limit rod 10 is provided between the first enclosure plate 2 and the second enclosure plate 3. A first reinforcing rod 11 is slidably connected inside the limit rod 10. A second reinforcing rod 12 is hinged to one end of the first reinforcing rod 11. A first connecting plate 13 is hinged to one end of both the second reinforcing rod 12 and the limit rod 10. A second bolt 14 is threadedly connected to the inside of the threaded hole of the first connecting plate 13. A limit plate 15 is fixedly connected to the other end of the first reinforcing rod 11. The limit plate 15 is slidably connected inside the limit rod 10. A second connecting plate 16 is fixedly connected to one side of the second reinforcing rod 12. An insert rod 17 is fixedly connected to one side of the second connecting plate 16. A damping pad 18 is fixedly connected to the outer side of one end of the insert rod 17. A positioning plate 19 is fixedly connected to one side of the first reinforcing rod 11. The insert rod 17 is movably connected inside the positioning plate 19. A third bolt 20 is threadedly connected inside the limit rod 10 and the limit plate 15.

[0025] After the cofferdam structure is deployed and fixed, it rotates around the hinge point of the second reinforcing rod 12 and the first reinforcing rod 11, causing the second connecting plate 16, the insert rod 17, and the positioning plate 19 to rotate synchronously. When the second connecting plate 16 is parallel to the positioning plate 19, the insert rod 17 drives the damping pad 18 to be inserted into the interior of the positioning plate 19, so that the damping pad 18 is located on the outside of the positioning plate 19, thereby connecting the second connecting plate 16 and the positioning plate 19, making the second reinforcing rod 12, the first reinforcing rod 11, and the limiting rod 10 collinear and fixed to prevent rotation and folding during use. Then, the two sets of first connecting plates 13 are fixed to the first cofferdam 2 and the first cofferdam 11 with the second bolt 14 respectively. The inner wall of the second cofferdam 3 simultaneously drives the first reinforcing rod 11 and the limiting plate 15 to slide inside the limiting rod 10, adjusting the exposed length of the first reinforcing rod 11 so that the reinforcement components can meet the requirements of different angles inside the cofferdam. After fixing the two sets of first connecting plates 13, the third bolt 20 is screwed into the limiting rod 10 and the limiting plate 15 to fix the position of the first reinforcing rod 11. Thus, with the cooperation of the second reinforcing rod 12, the first reinforcing rod 11, the insert rod 17, the damping pad 18 and the positioning plate 19, the interior of the cofferdam can be reinforced and supported, thereby improving the stability of the cofferdam when it is subjected to water and soil impact from the outside, and thus ensuring the safety of construction.

[0026] Working principle: After the cofferdam structure is transported to the construction area, the four sets of columns 1 are pulled outwards, causing them to expand outwards in a square shape. Simultaneously, the first and second enclosure plates 2 and 3 rotate about their hinge points. When the four sets of columns 1 are pulled outwards to their maximum extent, the four sets of first and second enclosure plates 2 and 3 form a closed cuboid with the columns 1, and the bottom receiving groove 5 aligns with the positioning groove 4. The pressure on the spring 7 decreases, and its own elasticity pushes the rubber pad 8 into the positioning groove 4. After the cofferdam structure is transported to the construction area, the four sets of columns 1 are pulled outwards, causing them to expand outwards in a square shape. Simultaneously, the first and second enclosure plates 2 and 3 rotate around their hinges. When the four sets of columns 1 are pulled outwards to their maximum extent, the four sets of first and second enclosure plates 2 and 3 form a closed cuboid with the columns 1, and the bottom receiving groove 5 aligns with the positioning groove 4. The pressure on the spring 7 decreases, and its own elasticity pushes the rubber pad 8 into the positioning groove 4. Then... Screw the first bolt 6 into the first enclosure plate 2 and the second enclosure plate 3 to further secure the connection between them, thus completing the deployment of the cofferdam structure. This allows for the enclosure of the construction site of the water conservancy and hydropower project. Rotate around the hinge point of the second reinforcing rod 12 and the first reinforcing rod 11, causing the insert rod 17 to drive the damping pad 18 into the interior of the positioning plate 19. This ensures that the second reinforcing rod 12, the first reinforcing rod 11, and the limiting rod 10 are collinear and fixed. Use the second bolt 14 to connect the two sets of first connecting plates 13. The first reinforcing rod 11 is fixed to the inner walls of the first enclosure 2 and the second enclosure 3 respectively. After the two sets of first connecting plates 13 are fixed, the third bolt 20 is screwed into the limiting rod 10 and the limiting plate 15 to fix the position of the first reinforcing rod 11. With the cooperation of the second reinforcing rod 12, the first reinforcing rod 11, the insert rod 17, the damping pad 18 and the positioning plate 19, the interior of the cofferdam can be reinforced and supported. This can improve the stability of the cofferdam when it is subjected to water and soil impact from the outside, thereby ensuring the safety of construction.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A cofferdam structure for construction work, characterized by: include: Four sets of columns (1), one side of each column (1) is hinged to a first enclosure plate (2), one side of the first enclosure plate (2) is hinged to a second enclosure plate (3), one side of the second enclosure plate (3) is hinged to one side of each column (1), each of the four sets of columns (1) has two sets of positioning grooves (4), the bottom of the first enclosure plate (2) and the second enclosure plate (3) has a storage groove (5), the two sets of positioning grooves (4) are respectively opposite to the storage grooves (5) at the bottom of the first enclosure plate (2) and the second enclosure plate (3), the first enclosure plate (2) and the second enclosure plate (3) are internally threaded with a first bolt (6), a washer (9) is installed on the first enclosure plate (2), the first bolt (6) is in contact with the washer (9), the inside of each of the two sets of storage grooves (5) is fixedly connected with a spring (7), one end of the spring (7) is fixedly connected with a rubber pad (8), the rubber pad (8) is movably connected to the storage groove (5).

2. The cofferdam structure for construction according to claim 1, wherein: Threaded holes are provided on one side of both sets of first enclosure plates (2) and both sets of second enclosure plates (3), and a limit rod (10) is provided between the first enclosure plate (2) and the second enclosure plate (3).

3. The cofferdam structure for construction according to claim 2, wherein: The limiting rod (10) is internally slidably connected to a first reinforcing rod (11), and a second reinforcing rod (12) is hinged to one end of the first reinforcing rod (11). A first connecting plate (13) is hinged to one end of both the second reinforcing rod (12) and the limiting rod (10).

4. The cofferdam structure for construction according to claim 3, wherein: The first connecting plate (13) and the threaded hole are internally threaded with a second bolt (14), and the other end of the first reinforcing rod (11) is fixedly connected to a limiting plate (15), which is slidably connected inside the limiting rod (10).

5. The cofferdam structure for construction according to claim 3, wherein: A second connecting plate (16) is fixedly connected to one side of the second reinforcing rod (12), and a plug rod (17) is fixedly connected to one side of the second connecting plate (16). A damping pad (18) is fixedly connected to the outer side of one end of the plug rod (17).

6. The cofferdam structure for construction according to claim 5, wherein: A positioning plate (19) is fixedly connected to one side of the first reinforcing rod (11), and the insertion rod (17) is movably connected inside the positioning plate (19). The limiting rod (10) and the limiting plate (15) are internally threaded with a third bolt (20).

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