River flow blocking cofferdam

Abstract

The application discloses a river flow blocking cofferdam and belongs to the technical field of river cofferdams. The river flow blocking cofferdam comprises a cofferdam plate and connecting columns and further comprises two mounting columns, a clamping groove for inserting the cofferdam plate, a limiting groove, a limiting mechanism arranged on the sidewall of the cofferdam plate and matched with the limiting groove, and a sealing air bag, and the mounting column is internally provided with a transmission mechanism matched with the limiting mechanism. The limiting mechanism on the cofferdam plate and the limiting groove can limit the vertical direction of the cofferdam plate. Similarly, the limiting mechanism and the limiting groove are disengaged to separate the cofferdam plate from the mounting column, and the mounting and dismounting are simple and convenient, the labor intensity is low, the working efficiency is greatly improved, the cofferdam plate can be reused in subsequent river engineering after being dismounted, a large amount of cost is saved, waste is avoided, and the water conservancy construction is facilitated.

Description

Technical Field

[0001] This invention relates to the field of river cofferdam technology, and more specifically, to a river flow-blocking cofferdam. Background Technology

[0002] A cofferdam is a temporary retaining structure built in hydraulic engineering projects to construct permanent hydraulic facilities. Its function is to prevent water and soil from entering the construction site, allowing for drainage, excavation of the foundation pit, and construction of the structure. It is primarily used in hydraulic engineering, especially along rivers and in reservoir reinforcement projects. River cofferdams serve to both prevent and block water flow, and also support the walls of the foundation pit, making them widely applicable.

[0003] Currently, the main method of obstructing river flow is by stacking sandbags. This method is labor-intensive, cumbersome, time-consuming, and inefficient, and the obstruction effect is not good. Moreover, although the cofferdams are to be dismantled after use, most of them cannot be reused, resulting in significant waste and being detrimental to water conservancy construction.

[0004] Therefore, it is necessary to provide a river flow-blocking cofferdam to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a river flow-blocking cofferdam to solve the above-mentioned technical problems.

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

[0007] A river flow-blocking cofferdam includes a cofferdam panel and connecting columns, and further includes:

[0008] Two mounting posts are symmetrically arranged at both ends of the connecting post;

[0009] A slot is provided on the mounting post for inserting the enclosure panel;

[0010] A limiting groove is formed on the inner wall of the slot, and a limiting mechanism that cooperates with the limiting groove is provided on the side wall of the enclosure.

[0011] A sealing airbag is disposed on the side wall of the slot. The mounting column is provided with a transmission mechanism that cooperates with the limiting mechanism to drive the sealing airbag to expand and fit against the outer wall of the enclosure.

[0012] As a further aspect of the present invention: the inner wall of the card slot is provided with a positioning groove, and the two sides of the enclosure are symmetrically provided with positioning strips that are adapted to the positioning groove.

[0013] As a further aspect of the present invention: the limiting mechanism includes:

[0014] An inner groove is formed inside the enclosure, and a limiting block adapted to the limiting groove is slidably disposed inside the inner groove;

[0015] The first elastic element has one end connected to the limiting block and the other end connected to the inner wall of the inner groove.

[0016] As a further aspect of the present invention: the mounting column is provided with a transmission cavity communicating with the locking groove, and the transmission mechanism includes:

[0017] The transmission rod has one end located inside the transmission cavity and provided with a first wedge, and the other end movably penetrates through the inner wall of the transmission cavity and is provided with a pressure block.

[0018] The second elastic element has one end connected to the first wedge and the other end connected to the inner wall of the transmission cavity;

[0019] The linkage component is disposed within the transmission cavity and cooperates with the first wedge.

[0020] As a further aspect of the present invention: an air storage cavity is provided inside the mounting column, and a communication port communicating with the sealing airbag is provided on the inner wall of the air storage cavity; the linkage component includes:

[0021] The linkage rod has one end located in the transmission cavity and is provided with a second wedge block that slides and adapts to the first wedge block, and the other end extends movably into the gas storage cavity and is provided with a pressing plate that slides and fits against the inner wall of the gas storage cavity.

[0022] The third elastic element has one end connected to the second wedge and the other end connected to the inner wall of the transmission cavity.

[0023] As a further embodiment of the present invention: the mounting column sidewall is threaded with a screw rod, one end of which extends into the limiting groove and is provided with a push block.

[0024] As a further embodiment of the present invention: two rotating shafts are rotatably arranged inside the connecting column, and at least one arc-shaped groove communicating with the rotating shaft is opened on the outer wall of the connecting column. A connecting plate is slidably arranged on the inner wall of the arc-shaped groove. One end of the connecting plate is connected to the rotating shaft, and the other end is provided with an arc plate connected to the mounting column. The arc plate is slidably attached to the side wall of the connecting column.

[0025] As a further aspect of the present invention: a fixing groove communicating with the arc-shaped groove is provided on the mounting column, and a fixing screw hole is provided on the connecting plate. The position of the connecting plate is fixed by passing a bolt through the fixing groove and engaging with the fixing screw hole.

[0026] As a further aspect of the present invention: multiple drilling rods are provided at the bottom of both the enclosure and the connecting column.

[0027] Compared with the prior art, the advantages of this invention are:

[0028] 1. In this solution, the enclosure panel and connecting column are installed by using positioning strips and positioning grooves to position the enclosure panel. The vertical direction of the enclosure panel is restricted by the limiting mechanism and limiting groove on the enclosure panel, thus connecting the enclosure panel to the installation column. The operation is simple and convenient. Similarly, by releasing the limiting mechanism and limiting groove, the enclosure panel and installation column can be separated. The installation and disassembly process is simple and convenient, requiring few tools or parts. The labor intensity of workers is low, the time spent is short, and work efficiency is greatly improved. Moreover, it can be reused in subsequent river engineering after dismantling, which saves a lot of costs, avoids waste, and is beneficial to water conservancy construction.

[0029] 2. In this solution, when the retaining plate is restricted by the cooperation of the limiting mechanism and the limiting groove, the transmission mechanism can cause the sealing airbag to expand and gradually stick to the outer wall of the retaining plate located in the locking groove. This can seal the side wall of the retaining plate, which can greatly prevent water from entering the cofferdam formed by the retaining plate and the connecting column, thus ensuring the effect of the cofferdam, greatly improving the safety of construction, and making it highly practical.

[0030] 3. This solution allows for angle adjustment of the enclosure panels, enabling the installation angle to be adjusted according to the actual site conditions. It has a wide range of applications, can meet the needs of different situations, and offers good performance and high flexibility. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the connection structure of the side panels of the connecting column of the present invention;

[0032] Figure 2 This is a three-dimensional structural diagram of the connecting column of the present invention;

[0033] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0034] Figure 4 This is a schematic diagram of the enclosure structure of the present invention;

[0035] Figure 5 This is a partial cross-sectional view of the enclosure structure of the present invention;

[0036] Figure 6 This is a top view of the internal structure of the mounting column of the present invention;

[0037] Figure 7 for Figure 6 Enlarged structural diagram at point B;

[0038] Figure 8This is a schematic diagram of the partial internal cross-section of the connecting column of the present invention.

[0039] Figure 9 This is a schematic diagram of the connection structure when the side panels of the connecting column of the present invention are perpendicular;

[0040] Figure 10 for Figure 9 Enlarged structural diagram at point C.

[0041] Explanation of the labels in the diagram:

[0042] 1. Enclosure panel; 2. Connecting column; 3. Mounting column; 4. Locking groove; 5. Limiting groove; 6. Limiting mechanism; 61. Inner groove; 62. Limiting block; 63. First elastic element; 7. Sealing airbag; 8. Transmission mechanism; 81. Transmission rod; 82. First wedge; 83. Pressing block; 84. Second elastic element; 85. Linkage assembly; 851. Linkage rod; 852. Second wedge; 853. Extrusion plate; 854. Third elastic element; 9. Positioning groove; 10. Positioning strip; 11. Transmission cavity; 12. Air storage cavity; 13. Connecting port; 14. Screw; 15. Push block; 16. Rotating shaft; 17. Arc groove; 18. Connecting plate; 19. Arc plate; 20. Fixing groove; 21. Fixing screw hole; 22. Drilling rod. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Please see Figure 1-4 and Figure 6 A river flow-blocking cofferdam includes a cofferdam 1 and connecting columns 2, and further includes: two mounting columns 3 symmetrically arranged at both ends of the connecting columns 2; a positioning groove 4 formed on the mounting columns 3 for inserting the cofferdam 1; a limiting groove 5 formed on the inner wall of the positioning groove 4, and a limiting mechanism 6 provided on the side wall of the cofferdam 1 to cooperate with the limiting groove 5; and a sealing airbag 7 set on the side wall of the positioning groove 4, and a transmission mechanism 8 provided in the mounting columns 3 to cooperate with the limiting mechanism 6, for driving the sealing airbag 7 to inflate and fit against the outer wall of the cofferdam 1. A positioning groove 9 is formed on the inner wall of the positioning groove 4, and positioning strips 10 adapted to the positioning groove 9 are symmetrically arranged on both sides of the cofferdam 1. Multiple drilling rods 22 are provided at the bottom of both the cofferdam 1 and the connecting columns 2.

[0045] During installation, when installing the enclosure panel 1 and the connecting post 2, the enclosure panel 1 is inserted into the locking groove 4 of the mounting post 3, so that the positioning strip 10 on the enclosure panel 1 slides in along the positioning groove 9 on the mounting post 3. The positioning strip 10 and the positioning groove 9 cooperate to position the enclosure panel 1, and at the same time prevent the enclosure panel 1 from moving laterally. It is highly practical. When the enclosure panel 1 moves to the designated position along the locking groove 4, the vertical direction of the enclosure panel 1 is restricted by the cooperation of the limiting mechanism 6 and the limiting groove 5 on the enclosure panel 1. This allows the enclosure panel 1 to be connected and installed together with the mounting column 3, i.e., the connecting column 2. The operation is simple and convenient. Similarly, by releasing the cooperation between the limiting mechanism 6 and the limiting groove 5, the enclosure panel 1 can slide out along the locking groove 4, thereby separating the enclosure panel 1 from the mounting column 3. This achieves the effect of removing the enclosure panel 1 and the connecting column 2. Not only can the enclosure panel 1 and the connecting column 2 be disassembled and separated, but the installation and disassembly process is also simple and convenient, requiring few tools or parts. The labor intensity of the workers is low, the time spent is short, and the work efficiency can be greatly improved. Moreover, after disassembly, it can be reused in subsequent river engineering projects, which is reusable, saves a lot of costs, avoids waste, is beneficial to water conservancy construction, and has strong practicality and good use effect.

[0046] When the retaining plate 1 is restricted by the cooperation of the limiting mechanism 6 and the limiting groove 5, the sealing airbag 7 can be inflated by the transmission mechanism 8. The sealing airbag 7 will gradually stick into the outer wall of the retaining plate 1 located in the locking groove 4, thereby sealing the side wall of the retaining plate 1 through the sealing airbag 7. This can greatly prevent water from entering the cofferdam formed by the retaining plate 1 and the connecting column 2, ensuring the effect of the cofferdam, greatly improving the safety of construction, and is highly practical and effective.

[0047] In this embodiment, preferably, please refer to [reference needed]. Figure 5 The limiting mechanism 6 includes: an inner groove 61, which is formed inside the enclosure 1, and a limiting block 62 adapted to the limiting groove 5 is slidably disposed in the inner groove 61; and a first elastic member 63, one end of which is connected to the limiting block 62 and the other end of which is connected to the inner wall of the inner groove 61. When the enclosure 1 moves along the locking groove 4 to the designated position, the limiting block 62 on the enclosure 1 is pressed and enters the inner groove 61, compressing the first elastic member 63. When the enclosure 1 drives the limiting mechanism 6 to continue moving to the position of the limiting groove 5, the rebound force of the first elastic member 63 will drive the limiting block 62 to move away from the inner groove 61. Finally, the limiting block 62 will enter the limiting groove 5, thereby limiting the vertical direction of the enclosure 1, and thus connecting and installing the enclosure 1 with the mounting column 3, i.e., the connecting column 2.

[0048] In this embodiment, preferably, please refer to [reference needed]. Figure 6-7A screw 14 is threadedly connected to the side wall of the mounting column 3. One end of the screw 14 extends into the limiting groove 5 and is equipped with a push block 15. When it is necessary to disassemble the enclosure plate 1 and the connecting column 2, the screw 14 can be rotated to move the push block 15 towards the limiting block 62 in the limiting groove 5. The push block 15 eventually contacts the limiting block 62 and presses it, causing the limiting block 62 to fully enter the inner groove 61. At this time, the limiting block 62 disengages from the limiting groove 5, and the enclosure plate 1 can then slide out along the locking groove 4. This separates the enclosure plate 1 from the mounting column 3, thus achieving the effect of removing the enclosure plate 1 and the connecting column 2.

[0049] In this embodiment, preferably, please refer to [reference needed]. Figure 6-7 The mounting column 3 has a transmission cavity 11 that communicates with the locking groove 4. The transmission mechanism 8 includes: a transmission rod 81, one end of which is located in the transmission cavity 11 and is provided with a first wedge 82, and the other end which movably passes through the inner wall of the transmission cavity 11 and is provided with a pressure block 83; a second elastic element 84, one end of which is connected to the first wedge 82 and the other end of which is connected to the inner wall of the transmission cavity 11; and a linkage component 85, which is located in the transmission cavity 11 and cooperates with the first wedge 82. An air storage chamber 12 is provided inside the mounting column 3. The inner wall of the air storage chamber 12 is provided with a communication port 13 that communicates with the sealing airbag 7. The linkage component 85 includes: a linkage rod 851, one end of which is located in the transmission cavity 11 and is provided with a second wedge 852 that is slidably adapted to the first wedge 82, and the other end extends movably into the air storage chamber 12 and is provided with a compression plate 853 that is slidably attached to the inner wall of the air storage chamber 12; and a third elastic element 854, one end of which is connected to the second wedge 852 and the other end of which is connected to the inner wall of the transmission cavity 11.

[0050] When the limiting block 62 enters the limiting groove 5, the limiting block 62 will gradually squeeze the pressure block 83, causing the pressure block 83 to gradually move towards the interior of the mounting post 3. The pressure block 83 will drive the transmission rod 81 and the first wedge 82 to move and stretch the second elastic element 84. When the first wedge 82 moves, it will gradually squeeze the second wedge 852. After being compressed, the second wedge 852 will drive the linkage rod 851 and the extrusion plate 853 to move horizontally and compress the third elastic element 854. When the extrusion plate 853 moves, it will squeeze the gas in the gas storage chamber 12. The gas will enter the sealing airbag 7 through the connecting port 13, thereby causing the sealing airbag 7 to expand.

[0051] In this embodiment, preferably, please refer to [reference needed]. Figure 2-3 , Figure 6 and Figure 8-10The connecting column 2 has two rotating shafts 16 rotatably mounted inside. The outer wall of the connecting column 2 has at least one arc-shaped groove 17 communicating with the rotating shafts 16. A connecting plate 18 is slidably mounted on the inner wall of the arc-shaped groove 17. One end of the connecting plate 18 is connected to the rotating shaft 16, and the other end has an arc-shaped plate 19 connected to the mounting column 3. The arc-shaped plate 19 slidably fits against the side wall of the connecting column 2. The mounting column 3 has a fixing groove 20 communicating with the arc-shaped groove 17, and the connecting plate 18 has a fixing screw hole 21. The connecting plate 18 is fixed in position by passing bolts through the fixing groove 20 and engaging with the fixing screw hole 21.

[0052] When it is necessary to adjust the angle of the cofferdam, i.e., to change the angle of the cofferdam plate 1, first unscrew the bolts on the connecting column 2 located in the fixing groove 20. Then, by rotating the mounting column 3, the mounting column 3 will drive the arc plate 19, the connecting plate 18, and the rotating shaft 16 to rotate together. The connecting plate 18 will slide along the inner wall of the arc groove 17, and the arc plate 19 will rotate against the outer wall of the connecting column 2. After the mounting column 3 is rotated to the specified angle, the bolts can be passed through the fixing groove 20, so that their bottoms enter the fixing screw holes 21 of the connecting plate 18, and the upper ends of the bolts are pressed against the upper end face of the connecting column 2, thus fixing the connecting plate 18. At this point, the angle of the mounting column 3 can be fixed. Figure 9-10 As shown, the angle of the enclosure 1 can be adjusted at this time, so that the installation angle of the enclosure 1 can be adjusted according to the actual site conditions. It has a wide range of applications, can meet the needs of different situations, has good performance and high flexibility.

[0053] Working principle: During installation, the two ends of the enclosure panel 1 can be inserted into the connecting columns 2 on both sides for installation. Then, the enclosure panel 1 and the connecting columns 2 are inserted into the riverbed surface through the drilling rod 22. When installing the enclosure panel 1 and the connecting columns 2, the enclosure panel 1 is inserted into the locking groove 4 of the mounting column 3, so that the positioning strip 10 on the enclosure panel 1 slides into the positioning groove 9 on the mounting column 3. The positioning strip 10 and the positioning groove 9 cooperate to position the enclosure panel 1, and at the same time prevent the enclosure panel 1 from moving laterally. It is highly practical. When the enclosure 1 moves along the locking groove 4 to the designated position, the limiting block 62 on the enclosure 1 is pressed into the inner groove 61 and compresses the first elastic element 63. When the enclosure 1 drives the limiting mechanism 6 to continue moving to the position of the limiting groove 5, the rebound force of the first elastic element 63 will drive the limiting block 62 to move away from the inner groove 61. Finally, the limiting block 62 will enter the limiting groove 5, thereby limiting the vertical direction of the enclosure 1. Then, the enclosure 1 and the mounting column 3 and the connecting column 2 can be connected and installed together. Similarly, when it is necessary to disassemble the enclosure 1 and the connecting column 2, the screw 14 can be rotated to drive the push block 15 to move towards the limiting block 62 in the limiting groove 5. Finally, the push block 15 will contact the limiting block 62 and squeeze it, so that the limiting block 62 completely enters the inner groove 61. At this time, the limiting block 62 will be disengaged from the limiting groove 5. Then, the enclosure 1 can be slid out along the locking groove 4, thus achieving the effect of removing the enclosure 1 and the connecting column 2.

[0054] When the limiting block 62 enters the limiting groove 5, the limiting block 62 will gradually squeeze the pressure block 83, causing the pressure block 83 to gradually move towards the interior of the mounting post 3. The pressure block 83 will drive the transmission rod 81 and the first wedge 82 to move and stretch the second elastic element 84. When the first wedge 82 moves, it will gradually squeeze the second wedge 852. After the second wedge 852 is compressed, it will drive the linkage rod 851 and the extrusion plate 853 to move horizontally and compress the third elastic element 854. When the extrusion plate 853 moves, it will squeeze the gas in the gas storage chamber 12. The gas will enter the sealing airbag 7 through the connecting port 13, thereby causing the sealing airbag 7 to expand. The sealing airbag 7 will gradually stick to the outer wall of the enclosure 1 located in the locking groove 4, thereby sealing the side wall of the enclosure 1 through the sealing airbag 7.

[0055] When it is necessary to adjust the angle of the cofferdam, i.e., to change the angle of the cofferdam plate 1, first unscrew the bolts on the connecting column 2 located in the fixing groove 20. Then, by rotating the mounting column 3, the mounting column 3 will drive the arc plate 19, the connecting plate 18, and the rotating shaft 16 to rotate together. The connecting plate 18 will slide along the inner wall of the arc groove 17, and the arc plate 19 will rotate against the outer wall of the connecting column 2. After the mounting column 3 is rotated to the specified angle, the bolts can be passed through the fixing groove 20, so that their bottoms enter the fixing screw holes 21 of the connecting plate 18, and the upper ends of the bolts are pressed against the upper end face of the connecting column 2, thus fixing the connecting plate 18. At this point, the angle of the mounting column 3 can be fixed. Figure 9-10 As shown.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A river flow-blocking cofferdam, comprising a cofferdam (1) and connecting columns (2), characterized in that, Also includes: Two mounting posts (3) are symmetrically arranged at both ends of the connecting post (2); A slot (4) is provided on the mounting post (3) for inserting the enclosure plate (1); A limiting groove (5) is provided on the inner wall of the slot (4), and a limiting mechanism (6) that cooperates with the limiting groove (5) is provided on the side wall of the enclosure (1). A sealing airbag (7) is provided on the side wall of the slot (4). The mounting column (3) is provided with a transmission mechanism (8) that cooperates with the limiting mechanism (6) to drive the sealing airbag (7) to expand and fit against the outer wall of the enclosure (1). The limiting mechanism (6) includes: An inner groove (61) is formed inside the enclosure (1), and a limiting block (62) adapted to the limiting groove (5) is slidably arranged inside the inner groove (61). The first elastic element (63) is connected at one end to the limiting block (62) and at the other end to the inner wall of the inner groove (61); The mounting post (3) has a transmission cavity (11) that communicates with the locking groove (4), and the transmission mechanism (8) includes: The transmission rod (81) has one end located inside the transmission cavity (11) and is provided with a first wedge (82), and the other end movably penetrates through the inner wall of the transmission cavity (11) and is provided with a pressure block (83). The second elastic element (84) is connected at one end to the first wedge (82) and at the other end to the inner wall of the transmission cavity (11); The linkage component (85) is disposed in the transmission cavity (11) and cooperates with the first wedge (82); The mounting column (3) has an air storage chamber (12) inside, and the inner wall of the air storage chamber (12) has a communication port (13) communicating with the sealing airbag (7). The linkage component (85) includes: The linkage rod (851) has one end located in the transmission cavity (11) and is provided with a second wedge (852) that is slidably adapted to the first wedge (82), and the other end extends movably into the gas storage cavity (12) and is provided with a pressing plate (853) that is slidably attached to the inner wall of the gas storage cavity (12). The third elastic element (854) is connected at one end to the second wedge (852) and at the other end to the inner wall of the transmission cavity (11); The mounting post (3) has a screw (14) threadedly connected to its side wall. One end of the screw (14) extends into the limiting groove (5) and is provided with a push block (15).

2. A river flow-blocking cofferdam according to claim 1, characterized in that, The inner wall of the slot (4) is provided with a positioning groove (9), and the two sides of the enclosure (1) are symmetrically provided with positioning strips (10) that are adapted to the positioning groove (9).

3. A river flow-blocking cofferdam according to claim 1, characterized in that, The connecting column (2) has two rotating shafts (16) rotatably arranged inside. The outer wall of the connecting column (2) has at least one arc-shaped groove (17) communicating with the rotating shaft (16). The inner wall of the arc-shaped groove (17) is slidably provided with a connecting plate (18). One end of the connecting plate (18) is connected to the rotating shaft (16), and the other end is provided with an arc plate (19) connected to the mounting column (3). The arc plate (19) is slidably attached to the side wall of the connecting column (2).

4. A river flow-blocking cofferdam according to claim 3, characterized in that, The mounting column (3) has a fixing groove (20) that communicates with the arc groove (17), and the connecting plate (18) has a fixing screw hole (21). The connecting plate (18) is fixed by passing a bolt through the fixing groove (20) and cooperating with the fixing screw hole (21).

5. A river flow-blocking cofferdam according to claim 4, characterized in that, Multiple drilling rods (22) are provided at the bottom of both the enclosure (1) and the connecting column (2).

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