Cofferdam device for bridge construction

Abstract

The utility model relates to the technical field of bridge construction, and discloses a cofferdam device for bridge construction, which comprises a plurality of coaming plates and a plurality of upright posts, a square box is fixedly connected inside the coaming plate at the front side, a motor is fixedly connected to the inner wall of the rear side of the square box, a rotating rod is fixedly connected to the driving end of the motor, and the rotating rod is fixedly connected to the driving end of the motor. A fixing rod is fixedly connected to the inner wall of the rear side of the square box, a transmission plate is rotatably connected to the front end of the fixing rod, a rotating rod is rotatably connected to the bottom of the transmission plate, a fixing block is slidably connected to the inner wall of the rear side of the square box, a sliding block is slidably connected to the inner wall of the fixing block, and two springs are fixedly connected to the bottom end of the sliding block. According to the utility model, the filter screen can be timely and effectively cleaned, and the water outlet cannot be blocked due to impurity accumulation. Accumulated water in the cofferdam can be smoothly discharged through the water outlet, a good working environment in the cofferdam is maintained, and normal construction of a bridge foundation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a cofferdam device for bridge construction. Background Technology

[0002] Bridge construction refers to the process of building a bridge through a series of engineering activities according to design drawings and specifications. This process encompasses all steps from preliminary preparation to bridge completion, including project initiation, surveying and design, bidding, and on-site construction such as pile foundation work, main structure construction, and installation of auxiliary facilities. Construction requires the application of knowledge from multiple fields, including structural engineering, foundation engineering, and hydraulic engineering, and the use of advanced construction technologies and equipment to ensure project quality. Simultaneously, construction management is crucial throughout the entire process, including planning, technical, quality, and safety management, to ensure smooth construction. Furthermore, comprehensive quality monitoring is essential to ensuring the safety and durability of the bridge. In short, bridge construction is a complex and highly coordinated engineering process that demands rigorous planning, precise execution, and meticulous supervision. In bridge construction, cofferdams are crucial for maintaining the dryness and stability of the construction area.

[0003] A cofferdam in bridge construction is a temporary water-retaining structure used when constructing in rivers, lakes, or other bodies of water. It isolates a portion of the water area to drain water, allowing for bridge foundation construction in a dry environment. Cofferdams are typically constructed from materials such as earth and rock, sheet piles, and concrete slabs. Their working principle involves utilizing the water-retaining properties of these materials to temporarily block water flow, while drainage equipment such as pumps continuously pumps out accumulated water within the enclosed area, maintaining a dry construction zone.

[0004] Many traditional cofferdam devices have drainage outlets on the cofferdam panels, with filters at these outlets to prevent impurities from entering the cofferdam. However, as construction progresses, silt, debris, and other contaminants in the water easily accumulate on the filters. If not cleaned promptly, the filters become clogged, affecting drainage efficiency. Therefore, a cofferdam device for bridge construction is proposed to address these issues. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a cofferdam device for bridge construction, which aims to improve the drainage efficiency of some existing cofferdam devices due to the accumulation and blockage of filter screens by silt, debris and other substances in the water.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cofferdam device for bridge construction includes multiple cofferdam panels and multiple columns. A square box is fixedly connected to the interior of the front cofferdam panel. A motor is fixedly connected to the rear inner wall of the square box. A rotating rod is fixedly connected to the drive end of the motor. A fixing rod is fixedly connected to the rear inner wall of the square box. A transmission plate is rotatably connected to the front end of the fixing rod. A rotating rod is rotatably connected to the bottom of the transmission plate. A fixing block is slidably connected to the rear inner wall of the square box. A slider is slidably connected to the inner wall of the fixing block. Two springs are fixedly connected to the bottom end of the slider. A sliding rod is fixedly connected to the bottom end of the fixing block. Scrapers are fixedly connected to both sides of the sliding rod. Drainage outlets are provided on both the left and right sides of the interior of the cofferdam panel. A filter screen is fixedly connected to the inner wall of the drainage outlet. An installation component for easy adjustment and installation is fixedly connected to the exterior of the columns.

[0008] As a further description of the above technical solution:

[0009] The mounting assembly includes multiple insert rods, the top ends of which are fixedly connected to the bottom end of the column, and multiple mounting plates are fixedly connected to the outside of the column.

[0010] As a further description of the above technical solution:

[0011] The transmission plate has a groove inside, and the front end of the rotating rod is slidably connected to the inner wall of the groove.

[0012] As a further description of the above technical solution:

[0013] The rear side of the rotating rod is fixedly connected to the front side of the slider, and the bottom ends of the two springs are fixedly connected to the bottom inner wall of the fixed block.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the sliding rod is slidably connected to the inner wall of the square box, and the rear side of the transmission plate is in contact with the front side of the fixed block;

[0016] As a further description of the above technical solution:

[0017] The front sides of the two scrapers are slidably connected to the rear side of the enclosure, and the front sides of the scrapers are in contact with the rear side of the filter screen;

[0018] As a further description of the above technical solution:

[0019] The mounting plate has multiple mounting holes inside, and bolts are threaded to the inner walls of the mounting holes. The outer walls of the bolts are slidably connected to the inside of the enclosure plate.

[0020] As a further description of the above technical solution:

[0021] The mounting plate has mounting grooves inside, and the outer wall of the enclosure is detachably connected to the inner wall of the two mounting grooves. The inner wall of the mounting groove is fixedly connected to a sealing strip, and the inner wall of the two sealing strips is in contact with the outside of the enclosure.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, to prevent filter screen clogging from affecting drainage, a dedicated cleaning mechanism is incorporated into the device. When the motor is turned on, it drives the rotating rod to rotate. The front end of the rotating rod slides within the groove of the transmission plate, causing the transmission plate to rotate around the fixed rod. The rotation of the transmission plate drives the slider to slide up and down within the fixed block via the rotating rod, and the square box provides longitudinal limitation for the sliding rod. The rotation of the transmission plate, in conjunction with the connection of the fixed block, causes the sliding rod to move repeatedly left and right. The scrapers on both sides of the sliding rod contact the rear side of the filter screen, thereby repeatedly scraping the surface of the filter screen. This ensures that the filter screen is cleaned promptly and effectively, preventing the drainage outlet from being clogged by accumulated impurities. This ensures that water accumulated inside the cofferdam can be smoothly discharged through the drainage outlet, maintaining a good working environment inside the cofferdam and facilitating the normal progress of bridge foundation construction.

[0024] 2. In this utility model, the number and distribution of mounting plates can be determined according to the size of the enclosure and connection requirements. Bolts connect the enclosure to the mounting plates through mounting holes. The outer wall of the enclosure is detachably connected to the mounting groove, and the sealing strip on the inner wall of the mounting groove improves the sealing performance. The column can be firmly inserted into the ground through the insertion rod, and adjustments can be made for different terrains with the help of the mounting plates. For example, in places with uneven or sloping terrain, different mounting plates can be selected to install the enclosure to adjust the angle of the enclosure, increasing the applicability of the entire cofferdam device. This flexibility allows the cofferdam device to be effectively used in bridge construction sites with various complex terrains, reducing the limitations imposed by the terrain on the use of the cofferdam device. Attached Figure Description

[0025] Figure 1 This is a perspective view of a cofferdam device for bridge construction proposed in this utility model;

[0026] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 3 This is a schematic diagram of the structure of a square box for a cofferdam device used in bridge construction according to the present invention;

[0028] Figure 4 for Figure 3 Enlarged view of point C in the middle;

[0029] Figure 5 forFigure 1 Enlarged view of point B in the middle.

[0030] Legend:

[0031] 1. Enclosure panel; 2. Square box; 3. Motor; 4. Rotating rod; 5. Fixed rod; 6. Transmission plate; 7. Rotating rod; 8. Fixed block; 9. Sliding block; 10. Spring; 11. Sliding rod; 12. Scraper; 13. Filter screen; 14. Column; 15. Insert rod; 16. Mounting plate; 17. Mounting hole; 18. Bolt; 19. Sealing strip. Detailed Implementation

[0032] 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 protection scope of the present utility model.

[0033] Reference Figure 2 , Figure 3 and Figure 4 This utility model provides an embodiment of a cofferdam device for bridge construction, comprising multiple cofferdam panels 1 and multiple columns 14. The cofferdam panels 1 are an important component of the cofferdam device, and the multiple cofferdam panels 1 are interconnected to form the main body of the cofferdam. The columns 14 play a crucial role in supporting the cofferdam panels 1 in the cofferdam device. Their number and distribution need to be determined according to the overall structure and scale of the cofferdam. Drainage outlets are provided on both the left and right sides inside the cofferdam panels 1, and filter screens 13 are fixedly connected to the inner walls of the drainage outlets. A square box 2 is fixedly connected to the inside of the front cofferdam panel 1, and the square box 2 is fixedly connected inside the front cofferdam panel 1, providing a closed space for the transmission mechanism of the entire filter screen 13 cleaning process. A motor 3 is fixedly connected to the rear inner wall of the square box 2. Motor 3 is the power source for the entire cofferdam device's filter screen 13 cleaning mechanism. A rotating rod 4 is fixedly connected to the drive end of motor 3, and a fixed rod 5 is fixedly connected to the rear inner wall of the square box 2. A transmission plate 6 is rotatably connected to the front end of the fixed rod 5. The fixed rod 5 provides a fulcrum for the transmission plate 6, allowing it to rotate stably. A groove is provided inside the transmission plate 6. The front end of the rotating rod 4 is slidably connected to the inner wall of the groove. One end of the rotating rod 4 is fixedly connected to the drive end of motor 3, and the other end is slidably connected to the inner wall of the groove inside the transmission plate 6. The rotating rod 4 plays a crucial role in transmitting power throughout the entire device.

[0034] A rotating rod 7 is rotatably connected to the bottom of the transmission plate 6. A fixed block 8 is slidably connected to the inner rear wall of the square box 2, and the rear side of the transmission plate 6 contacts the front side of the fixed block 8. A slider 9 is slidably connected to the inner wall of the fixed block 8, and the fixed block 8 serves to support and guide the slider 9 in the entire device. The rear side of the rotating rod 7 is fixedly connected to the front side of the slider 9, and the rotating rod 7 serves to connect the transmission plate 6 and the slider 9 in the entire device. Two springs 10 are fixedly connected to the bottom end of the slider 9, and the bottom ends of the two springs 10 are fixedly connected to the bottom inner wall of the fixed block 8. The springs 10 connect between the slider 9 and the fixed block 8, and serve as a buffer. A sliding rod 11 is fixedly connected to the bottom end of the fixed block 8. The outer wall of the sliding rod 11 is slidably connected to the inner wall of the square box 2. Scrapers 12 are fixedly connected to both the left and right sides of the sliding rod 11. The front sides of the two scrapers 12 are slidably connected to the rear side of the enclosure 1. The front side of the scrapers 12 is in contact with the rear side of the filter screen 13. The left and right repeated movement of the sliding rod 11 drives the scrapers 12 to scrape the filter screen 13.

[0035] Reference Figure 1 and Figure 5 The external fixed connection of the column 14 includes an installation assembly for easy adjustment and installation. The installation assembly includes multiple insert rods 15, the top of which is fixedly connected to the bottom of the column 14. The insert rods 15 connect the column 14 to the ground, ensuring the column 14 can be stably inserted into the ground and provide sufficient support. The external fixed connection of the column 14 also includes multiple mounting plates 16. The mounting plates 16 provide multiple connection points for the installation of the enclosure 1. The number and distribution of the mounting plates 16 are determined according to the size of the enclosure 1 and the connection requirements. Multiple mounting holes 17 are formed inside the mounting plates 16. Bolts 18 are threaded onto the inner walls of the mounting holes 17. The outer walls of the bolts 18 are slidably connected to the interior of the enclosure 1. The mounting holes 17 are formed inside the mounting plates 16 for installing the bolts 18. The mounting plate 16 has mounting grooves inside. The outer wall of the enclosure 1 is detachably connected to the inner wall of the two mounting grooves. The inner wall of the mounting groove is fixedly connected to a sealing strip 19. The inner wall of the two sealing strips 19 is in contact with the outer wall of the enclosure 1. The function of the sealing strips 19 is to improve the sealing between the enclosure 1 and the mounting plate 16.

[0036] Working principle: By turning on the motor 3, power is generated to drive the rotating rod 4 to rotate, so that the front end of the rotating rod 4 slides in the groove in the transmission plate 6, and drives the transmission plate 6 to rotate around the fixed rod 5. The rotation of the transmission plate 6, in conjunction with the connection of the rotating rod 7, drives the slider 9 to slide up and down in the fixed block 8. The spring 10 plays a buffering role in the sliding process of the slider 9. By limiting the longitudinal direction of the sliding rod 11 through the square box 2, the rotation of the transmission plate 6, in conjunction with the connection of the fixed block 8, drives the sliding rod 11 to move left and right repeatedly. The left and right repeated movement of the sliding rod 11 drives the scraper 12 to repeatedly scrape the surface of the filter screen 13, effectively cleaning the filter screen 13 and preventing the drain outlet from being blocked.

[0037] The column 14 is firmly inserted into the ground by inserting a rod 15 at its bottom end. Multiple mounting plates 16 are fixedly connected to the outside of the column 14, allowing for adjustments to suit different terrains. The angle of the enclosure can be adjusted by installing the plates 16 on different parts, thus increasing the applicability of the entire cofferdam device. The enclosure plate 1 is fixed with bolts 18, and the sealing strip 19 enhances the seal, reducing external influences on the interior of the cofferdam.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cofferdam device for bridge construction, comprising multiple cofferdam panels (1) and multiple columns (14), characterized in that: A square box (2) is fixedly connected inside the front panel (1). A motor (3) is fixedly connected to the rear inner wall of the square box (2). A rotating rod (4) is fixedly connected to the drive end of the motor (3). A fixed rod (5) is fixedly connected to the rear inner wall of the square box (2). A transmission plate (6) is rotatably connected to the front end of the fixed rod (5). A rotating rod (7) is rotatably connected to the bottom of the transmission plate (6). A fixed block (8) is slidably connected to the rear inner wall of the square box (2). A slider (9) is slidably connected to the inner wall of the fixed block (8). Two springs (10) are fixedly connected to the bottom end of the slider (9). A sliding rod (11) is fixedly connected to the bottom end of the fixed block (8). Scrapers (12) are fixedly connected to both the left and right sides of the sliding rod (11). Drainage outlets are opened on both the left and right sides inside the panel (1). A filter screen (13) is fixedly connected to the inner wall of the drainage outlet. An installation component for easy adjustment and installation is fixedly connected to the outside of the column (14).

2. The cofferdam device for bridge construction according to claim 1, characterized in that: The mounting assembly includes multiple inserts (15), the top of which is fixedly connected to the bottom of the column (14), and multiple mounting plates (16) are fixedly connected to the outside of the column (14).

3. The cofferdam device for bridge construction according to claim 1, characterized in that: The transmission plate (6) has a groove inside, and the front end of the rotating rod (4) is slidably connected to the inner wall of the groove.

4. A cofferdam device for bridge construction according to claim 1, characterized in that: The rear side of the rotating rod (7) is fixedly connected to the front side of the slider (9), and the bottom ends of the two springs (10) are fixedly connected to the bottom inner wall of the fixed block (8).

5. A cofferdam device for bridge construction according to claim 1, characterized in that: The outer wall of the sliding rod (11) is slidably connected to the inner wall of the square box (2), and the rear side of the transmission plate (6) is in contact with the front side of the fixing block (8).

6. A cofferdam device for bridge construction according to claim 1, characterized in that: The front sides of the two scrapers (12) are slidably connected to the rear side of the enclosure (1), and the front side of the scrapers (12) is in contact with the rear side of the filter screen (13).

7. A cofferdam device for bridge construction according to claim 2, characterized in that: The mounting plate (16) has multiple mounting holes (17) inside, and bolts (18) are threadedly connected to the inner wall of the mounting holes (17). The outer walls of the multiple bolts (18) are slidably connected to the inside of the enclosure plate (1).

8. A cofferdam device for bridge construction according to claim 2, characterized in that: The mounting plate (16) has an installation groove inside. The outer wall of the enclosure (1) is detachably connected to the inner wall of the two installation grooves. The inner wall of the installation groove is fixedly connected with a sealing strip (19). The inner wall of the two sealing strips (19) is in contact with the outside of the enclosure (1).

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