Water conservancy construction cofferdam device

Abstract

The utility model provides a water conservancy construction cofferdam device, which relates to the technical field of water conservancy projects, and comprises a cofferdam body, the bottom of the cofferdam body is fixedly connected with a bottom plate, a supporting device is arranged between the bottom plate and the cofferdam body, and the supporting device comprises a circular ring. The outer surface of the cofferdam body is in sliding connection with the inner wall of a circular ring, eight extension blocks are evenly and fixedly connected to the outer surface of the circular ring, eight extension plates are evenly and fixedly connected to the outer surface of a bottom plate, sliding grooves are formed in the tops of the extension plates, and the inner walls of the sliding grooves are in sliding connection. The threaded rod is pushed to slide on the inner wall of the cylinder, one end of the threaded rod can drive the circular ring to synchronously slide on the outer surface of the cofferdam body, then the height, namely the supporting height, of the circular ring can be correspondingly adjusted according to the height of a water body, and the anti-pressure capacity of the cofferdam can be improved.

Description

Technical Field

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

[0002] A cofferdam is a temporary retaining structure built in water conservancy projects to construct permanent water conservancy facilities. Its main function is to prevent water and soil from entering the construction site of the structure, so as to facilitate drainage, excavation of foundation pits, and construction of structures within the cofferdam.

[0003] To ensure a more stable overall structure of the cofferdam, support rods are installed on the outside of the cofferdam to support it and improve its stability. However, depending on the terrain, the height of the water body that the cofferdam needs to block varies, and the pressure exerted on the cofferdam by water bodies of different heights also varies. When dealing with water bodies of different heights, the support structure with a fixed height will have a reduced support capacity, which will lead to a decrease in the cofferdam's compressive strength. Utility Model Content

[0004] This invention provides a cofferdam device for hydraulic construction to address the problem that the pressure exerted on a cofferdam varies depending on the water body height, and that a fixed-height support structure will experience a decrease in support capacity when dealing with water bodies of different heights, thus reducing the cofferdam's compressive strength.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cofferdam device for water conservancy construction, comprising a cofferdam body, a base plate fixedly connected to the bottom of the cofferdam body, a support device provided between the base plate and the cofferdam body, the support device comprising a ring, the outer surface of the cofferdam body being slidably connected to the inner wall of the ring, eight extension blocks being uniformly fixedly connected to the outer surface of the ring, eight extension plates being uniformly fixedly connected to the outer surface of the base plate, a groove being provided at the top of the extension plates, a slider being slidably connected to the inner wall of the groove, a cylinder being rotatably connected to the top of the slider, threaded rods being slidably connected to the inner walls of four non-adjacent cylinders, one end of each of the four threaded rods being rotatably connected to the bottom of the four non-adjacent extension blocks, a nut being threadedly connected to the outer surface of the threaded rods, and an auxiliary device provided between the ring and the cofferdam body.

[0006] The effect achieved by the above components is as follows: by setting up a threaded rod and a cylinder, the threaded rod is pushed to slide on the inner wall of the cylinder. One end of the threaded rod will drive the ring to slide synchronously on the outer surface of the cofferdam body. At the same time, one end of the cylinder will drive the slider to slide synchronously on the inner wall of the groove until the ring reaches the appropriate height. Then, the nut is rotated so that one side of the nut abuts against one end of the cylinder, which can limit the movement between the threaded rod and the cylinder. This makes it easier to adjust the height of the ring, i.e., the support height, according to the water level, which helps to improve the pressure resistance of the cofferdam.

[0007] Preferably, a rubber pad is fixedly connected to one end of the cylinder, and the outer surface of the threaded rod is inserted into the inner wall of the rubber pad.

[0008] The effect achieved by the above-mentioned components is that by setting a rubber pad, one end of the cylinder can be replaced to abut against one side of the nut, and the friction between the nut and the cylinder can be increased, which helps to prevent the nut from loosening.

[0009] Preferably, eight locking strips are uniformly fixedly connected to the outer surface of the cofferdam body, and eight locking grooves are uniformly opened on the inner wall of the ring, with the outer surface of the locking strips slidingly connected to the inner wall of the locking grooves.

[0010] The effect achieved by the above components is as follows: by setting the locking strip and the locking groove, when the ring slides on the outer surface of the cofferdam body, it will drive the locking groove to slide synchronously on the outer surface of the locking strip, which can play an auxiliary limiting role for the ring, making the ring more stable during the sliding process.

[0011] Preferably, a common round rod is provided between two adjacent threaded rods, one end of which is rotatably connected to the bottom of the extension block, and the outer surface of which is slidably connected to the inner wall of the cylinder.

[0012] The effect achieved by the above components is as follows: by setting the round rod, when the ring moves vertically under the action of the threaded rod, the ring will drive the round rod to slide synchronously on the inner wall of the cylinder, which can limit and guide the ring.

[0013] Preferably, the inner walls of the rod and the cylinder are fitted with the same pin.

[0014] The effect achieved by the above components is as follows: by setting a pin, when the ring moves to the appropriate position, holes are drilled at appropriate positions on the outer surfaces of the cylinder and the rod, and the pin is inserted into the holes, which can fix the rod and the cylinder, thereby providing auxiliary support for the cofferdam body inside the ring, reducing the support pressure of the threaded rod and nut on the cofferdam body, and improving the stability of the overall structure.

[0015] Preferably, the auxiliary device includes a screw hole block, and a threaded pin is threaded into the inner wall of the screw hole block.

[0016] The effect achieved by the above components is as follows: by setting the threaded pin and rotating the threaded pin, the threaded pin enters the inner wall of the cofferdam body, which can fix the ring connected to the threaded hole block to the cofferdam body, and further improve the stability of the connection between the ring and the cofferdam body.

[0017] Preferably, one end of the threaded pin is fixedly connected to a rotating block, and a hexagonal groove is provided on one side of the rotating block.

[0018] The effect achieved by the above-mentioned components is that by setting a rotating block with a hexagonal groove, it is convenient to rotate the threaded pin connected to the rotating block with tools such as a hexagonal wrench, so that the threaded pin can enter the inner wall of the cofferdam body as much as possible.

[0019] Preferably, a spring is fitted on the outer surface of the threaded pin, one end of the spring is fixedly connected to one side of the threaded hole block, and the other end of the spring is fixedly connected to a washer, one side of the washer being rotatably connected to one side of the rotating block.

[0020] The effects achieved by the above components are as follows: by setting a spring, the threaded pin connected to the rotating block and the threaded hole block can be connected, which helps to prevent the threaded pin from easily disengaging from the threaded hole block and being lost. At the same time, by setting a washer, it helps to prevent the spring from being damaged by rotating the rotating block together.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, by setting a threaded rod and a cylinder, the threaded rod is pushed to slide on the inner wall of the cylinder. One end of the threaded rod will drive the ring to slide synchronously on the outer surface of the cofferdam body, which makes it easier to adjust the height of the ring, i.e. the support height, according to the water level, which helps to improve the cofferdam's pressure resistance. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the main body of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the support device of this utility model;

[0025] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0026] Figure 4 This utility model Figure 2 A magnified structural diagram at point B.

[0027] Legend: 1. Cofferdam body; 2. Bottom plate; 3. Support device; 31. Ring; 32. Extension block; 33. Threaded rod; 34. Cylinder; 35. Sliding block; 36. Extension plate; 37. Slide groove; 38. Nut; 39. Rubber pad; 310. Locking strip; 311. Locking groove; 312. Round rod; 313. Pin; 4. Auxiliary device; 41. Screw hole block; 42. Threaded pin; 43. Rotating block; 44. Hexagonal groove; 45. Spring; 46. Washer ring. Detailed Implementation

[0028] Example 1 discloses a cofferdam device for hydraulic construction, including a cofferdam body 1. A base plate 2 is fixedly connected to the bottom of the cofferdam body 1. A support device 3 is provided between the base plate 2 and the cofferdam body 1. The support device 3 includes a ring 31. The outer surface of the cofferdam body 1 is slidably connected to the inner wall of the ring 31. Eight extension blocks 32 are uniformly fixedly connected to the outer surface of the ring 31. Eight extension plates 36 are uniformly fixedly connected to the outer surface of the base plate 2. A groove 37 is provided at the top of the extension plate 36. A slider 35 is slidably connected to the inner wall of the groove 37. A cylinder 34 is rotatably connected to the top of the slider 35. Threaded rods 33 are slidably connected to the inner walls of four non-adjacent cylinders 34. One end of each of the four threaded rods 33 is rotated at the bottom of one of the four non-adjacent extension blocks 32. The threaded rod 33 is connected to a nut 38 on its outer surface. An auxiliary device 4 is provided between the ring 31 and the cofferdam body 1. By setting the threaded rod 33 and the cylinder 34, the threaded rod 33 is pushed to slide on the inner wall of the cylinder 34. One end of the threaded rod 33 will drive the ring 31 to slide synchronously on the outer surface of the cofferdam body 1. At the same time, one end of the cylinder 34 will drive the slider 35 to slide synchronously on the inner wall of the groove 37 until the ring 31 reaches a suitable height. Then, the nut 38 is rotated so that one side of the nut 38 abuts against one end of the cylinder 34, which can limit the movement between the threaded rod 33 and the cylinder 34. This makes it easier to adjust the height of the ring 31, i.e., the support height, according to the water level, which is beneficial to improving the pressure resistance of the cofferdam.

[0029] Reference Figure 2 and Figure 3As shown, a rubber pad 39 is fixedly connected to one end of the cylinder 34, and the outer surface of the threaded rod 33 is inserted into the inner wall of the rubber pad 39. By setting the rubber pad 39, one end of the cylinder 34 can be replaced to abut against one side of the nut 38, and the friction between the nut 38 and the cylinder 34 is increased, which helps to prevent the nut 38 from loosening. Eight locking strips 310 are evenly fixedly connected to the outer surface of the cofferdam body 1, and eight locking grooves 311 are evenly opened on the inner wall of the ring 31. The outer surface of the locking strip 310 is slidably connected to the inner wall of the locking groove 311. By setting the locking strip 310 and the locking groove 311, when the ring 31 slides on the outer surface of the cofferdam body 1, it will drive the locking groove 311 to slide synchronously on the outer surface of the locking strip 310, which can play an auxiliary limiting role for the ring 31, making the ring 31 more stable during the sliding process.

[0030] Reference Figure 2 and Figure 3 As shown, a rubber pad 39 is fixedly connected to one end of the cylinder 34, and the outer surface of the threaded rod 33 is inserted into the inner wall of the rubber pad 39. By setting the rubber pad 39, one end of the cylinder 34 can be replaced to abut against one side of the nut 38, and the friction between the nut 38 and the cylinder 34 is increased, which helps to prevent the nut 38 from loosening. Eight locking strips 310 are evenly fixedly connected to the outer surface of the cofferdam body 1, and eight locking grooves 311 are evenly opened on the inner wall of the ring 31. The outer surface of the locking strip 310 is slidably connected to the inner wall of the locking groove 311. By setting the locking strip 310 and the locking groove 311, when the ring 31 slides on the outer surface of the cofferdam body 1, it will drive the locking groove 311 to slide synchronously on the outer surface of the locking strip 310, which can play an auxiliary limiting role for the ring 31, making the ring 31 more stable during the sliding process.

[0031] Reference Figures 2-4 As shown, a common round rod 312 is provided between two adjacent threaded rods 33. One end of the round rod 312 is rotatably connected to the bottom of the extension block 32, and the outer surface of the round rod 312 is slidably connected to the inner wall of the cylinder 34. By providing the round rod 312, when the ring 31 moves vertically under the action of the threaded rod 33, the ring 31 will drive the round rod 312 to slide synchronously on the inner wall of the cylinder 34, which can limit and guide the ring 31; the round rod 312 and the cylinder The inner wall of 34 is fitted with the same pin 313. By setting the pin 313, when the ring 31 moves to the appropriate position, holes are drilled at appropriate positions on the outer surfaces of the cylinder 34 and the rod 312, and the pin 313 is inserted into the holes. This can fix the rod 312 and the cylinder 34, thereby providing auxiliary support for the cofferdam body 1 inside the ring 31 and reducing the support pressure of the threaded rod 33 and the nut 38 on the cofferdam body 1, thus improving the stability of the overall structure.

[0032] Reference Figure 2 and Figure 4 As shown, the auxiliary device 4 includes a screw hole block 41, and a threaded pin 42 is threaded into the inner wall of the screw hole block 41. By setting the threaded pin 42 and rotating the threaded pin 42, the threaded pin 42 enters the inner wall of the cofferdam body 1, which can fix the ring 31 connected to the screw hole block 41 to the cofferdam body 1, and further improve the stability of the connection between the ring 31 and the cofferdam body 1.

[0033] Reference Figure 2 and Figure 4 As shown, a rotating block 43 is fixedly connected to one end of the threaded pin 42. A hexagonal groove 44 is provided on one side of the rotating block 43. By setting the rotating block 43 with the hexagonal groove 44, it is easy to rotate the threaded pin 42 connected to the rotating block 43 with tools such as a hexagonal wrench, so that the threaded pin 42 can enter the inner wall of the cofferdam body 1 as much as possible. A spring 45 is sleeved on the outer surface of the threaded pin 42. One end of the spring 45 is fixedly connected to one side of the screw hole block 41, and the other end of the spring 45 is fixedly connected to a washer 46. One side of the washer 46 is rotatably connected to one side of the rotating block 43. By setting the spring 45, the threaded pin 42 connected to the rotating block 43 can be connected to the screw hole block 41, which helps to prevent the threaded pin 42 from easily detaching from the screw hole block 41 and being easily lost. At the same time, by setting the washer 46, it helps to prevent the spring 45 from being damaged when the rotating block 43 is rotated.

[0034] Working principle: The threaded rod 33 slides on the inner wall of the cylinder 34. One end of the threaded rod 33 drives the ring 31 to slide synchronously on the outer surface of the cofferdam body 1. The ring 31 drives the groove 311 to slide synchronously on the outer surface of the retaining strip 310, and drives the round rod 312 to slide on the inner wall of the cylinder 34. At the same time, one end of the cylinder 34 drives the slider 35 to slide synchronously on the inner wall of the groove 37 until the ring 31 reaches a suitable height. The nut 38 is rotated so that the rubber pad 39 on one side of the nut 38 abuts against one end of the cylinder 34, thus limiting the movement between the threaded rod 33 and the cylinder 34. Then, holes are drilled at suitable positions on the outer surfaces of the cylinder 34 and the round rod 312 to... When the pin 313 is inserted into the hole, it can fix the round rod 312 and the cylinder 34, thereby providing auxiliary support for the cofferdam body 1 inside the ring 31 and reducing the supporting pressure of the threaded rod 33 and nut 38 on the cofferdam body 1, which can improve the stability of the overall structure. Finally, rotating the rotating block 43 drives the threaded pin 42 to rotate, so that the threaded pin 42 enters the inner wall of the cofferdam body 1, which can fix the ring 31 connected to the threaded hole block 41 to the cofferdam body 1, further improving the stability of the connection between the ring 31 and the cofferdam body 1. This makes it easier to adjust the height of the ring 31, i.e., the support height, according to the water level, which is beneficial to improving the pressure resistance of the cofferdam.

Claims

1. A cofferdam device for hydraulic construction, comprising a cofferdam body (1), characterized in that: A base plate (2) is fixedly connected to the bottom of the cofferdam body (1). A support device (3) is provided between the base plate (2) and the cofferdam body (1). The support device (3) includes a ring (31). The outer surface of the cofferdam body (1) is slidably connected to the inner wall of the ring (31). Eight extension blocks (32) are evenly fixedly connected to the outer surface of the ring (31). Eight extension plates (36) are evenly fixedly connected to the outer surface of the base plate (2). The top of the extension plates (36) is provided with a sliding opening. The groove (37) has a slider (35) slidably connected to its inner wall. The top of the slider (35) is rotatably connected to a cylinder (34). The inner walls of four non-adjacent cylinders (34) are slidably connected to threaded rods (33). One end of each of the four threaded rods (33) is rotatably connected to the bottom of four non-adjacent extension blocks (32). The outer surface of the threaded rods (33) is threaded with nuts (38). An auxiliary device (4) is provided between the ring (31) and the cofferdam body (1).

2. The cofferdam device for hydraulic construction according to claim 1, characterized in that: A rubber pad (39) is fixedly connected to one end of the cylinder (34), and the outer surface of the threaded rod (33) is inserted into the inner wall of the rubber pad (39).

3. A cofferdam device for hydraulic construction according to claim 1, characterized in that: The outer surface of the cofferdam body (1) is uniformly fixedly connected with eight clips (310), and the inner wall of the ring (31) is uniformly provided with eight slots (311). The outer surface of the clips (310) is slidably connected to the inner wall of the slots (311).

4. A cofferdam device for hydraulic construction according to claim 1, characterized in that: A common round rod (312) is provided between two adjacent threaded rods (33). One end of the round rod (312) is rotatably connected to the bottom of the extension block (32), and the outer surface of the round rod (312) is slidably connected to the inner wall of the cylinder (34).

5. A cofferdam device for hydraulic construction according to claim 4, characterized in that: The inner walls of the rod (312) and the cylinder (34) are fitted with the same pin (313).

6. A cofferdam device for hydraulic construction according to claim 1, characterized in that: The auxiliary device (4) includes a screw hole block (41), and a threaded pin (42) is threaded into the inner wall of the screw hole block (41).

7. A cofferdam device for hydraulic construction according to claim 6, characterized in that: One end of the threaded pin (42) is fixedly connected to a rotating block (43), and a hexagonal groove (44) is provided on one side of the rotating block (43).

8. A cofferdam device for hydraulic construction according to claim 7, characterized in that: A spring (45) is fitted on the outer surface of the threaded pin (42). One end of the spring (45) is fixedly connected to one side of the threaded hole block (41), and the other end of the spring (45) is fixedly connected to a washer (46). One side of the washer (46) is rotatably connected to one side of the rotating block (43).

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