Cofferdam channel baffle

Abstract

The utility model relates to a cofferdam channel baffle which comprises a baffle body, a plurality of sliding grooves, a movable plate and a limiting assembly, a circulation opening is formed in the baffle body, and the circulation opening is used for discharging water in a cofferdam; the multiple sliding grooves are formed in the baffle, and the movable plate is arranged between the sliding grooves; the moving plate can move along the sliding groove so as to cover or leave the circulation opening, and therefore opening and closing of the circulation opening are achieved. The limiting assembly is installed on the side wall, close to the sliding groove, of the movable plate and used for fixing the movable plate to the preset position in the sliding groove. By arranging the movable plate capable of moving and limiting on the baffle, the height of the movable plate can be adjusted, and therefore the size of the water flow channel can be controlled.

Description

Technical Field

[0001] This utility model relates to the field of cofferdam technology, and in particular to a cofferdam channel baffle. Background Technology

[0002] In water conservancy projects, river dredging, and bridge foundation construction, cofferdams are commonly used temporary water-retaining structures to isolate the construction area from external water bodies, facilitating operations in dry conditions. Channels are typically included in cofferdams to allow water flow when necessary.

[0003] Existing cofferdam channel baffles mostly use small holes for drainage, which makes it inconvenient to control the size of the flow channel through which water flows, and thus control the flow rate. Therefore, a new type of cofferdam channel baffle is proposed. Utility Model Content

[0004] This utility model provides a cofferdam channel baffle to solve at least one of the above-mentioned technical problems.

[0005] This utility model provides a cofferdam channel baffle, including a baffle, multiple sliding grooves, a movable plate, and a limiting component, wherein:

[0006] The baffle is provided with a flow port, which is used to drain water from the cofferdam.

[0007] Multiple sliding grooves are provided on the baffle plate, and the movable plate is provided between the sliding grooves;

[0008] The movable plate can move along the sliding groove to cover or move away from the flow port, thereby opening and closing the flow port.

[0009] The limiting component is installed on the side wall of the movable plate near the sliding groove, and is used to fix the movable plate at a predetermined position in the sliding groove.

[0010] In one embodiment, each of the sliding grooves is provided with a plurality of limiting holes, which are used to cooperate with the limiting component to adjust and limit the position and height of the moving plate.

[0011] In one embodiment, the limiting component includes a limiting block and a telescopic component. The limiting block is telescopically mounted in a telescopic cavity via the telescopic component. The telescopic cavity is located on the side wall of the moving plate near the sliding groove. The limiting block extends into the limiting hole via the telescopic component to limit the position of the moving plate.

[0012] In one embodiment, the telescopic assembly includes multiple elastic elements and multiple first telescopic rods. One end of each first telescopic rod is connected to the limiting block, and the other end is connected to a protrusion in the telescopic cavity. Each first telescopic rod is fitted with an elastic element, and one end of each elastic element is connected to the limiting block, and the other end is connected to the protrusion in the telescopic cavity.

[0013] In one embodiment, the telescopic assembly further includes multiple connecting rods and multiple pistons. One end of each connecting rod is hinged to the side of the limiting block near the telescopic cavity, and the other end is hinged to the piston. The multiple pistons are respectively disposed in piston chambers, which are located on both sides of the telescopic cavity and communicate with the telescopic cavity. The pistons and the protrusion are connected by a second telescopic rod.

[0014] In one embodiment, the flow port is provided with a plurality of filter screens, the pore size of the plurality of filter screens decreasing sequentially along the water flow direction.

[0015] In one embodiment, a handle is also included, which is disposed on the movable plate.

[0016] In one embodiment, each of the sliding grooves has multiple sets of limiting components.

[0017] In one embodiment, the baffle is connected to the cofferdam on both sides, and the baffle is installed at the location of the cofferdam where the channel is to be set, for draining the cofferdam.

[0018] In one embodiment, the bottom of the water-facing side of the baffle is provided with a collection trough for collecting filtered impurities.

[0019] Compared with the prior art, the advantage of this utility model is that by setting a movable limiting plate on the baffle, the height of the movable plate can be adjusted, thereby controlling the size of the water flow channel. Attached Figure Description

[0020] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of the baffle of this utility model;

[0022] Figure 2 yes Figure 1 A schematic diagram of part A;

[0023] Figure label:

[0024] 1. Baffle; 2. Moving plate; 3. Sliding groove; 4. Limiting assembly; 401. Limiting block; 402. Elastic element; 403. First telescopic rod; 404. Connecting rod; 405. Second telescopic rod; 406. Piston; 5. Piston chamber; 6. Handle; 7. Filter screen; 8. Telescopic cavity; 9. Protrusion; 10. Limiting hole. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Please refer to Figure 1 and Figure 2 This utility model provides a baffle for a cofferdam channel, including a baffle 1, multiple sliding grooves 3, a movable plate 2, and a limiting component 4. The baffle 1 has a flow port for discharging water from the cofferdam. Multiple filter screens 7 are installed inside the flow port. The filter screens 7 can be single-layered or double-layered; when double-layered, the aperture size of the two filter screens 7 decreases sequentially along the water flow direction. When the flow port is draining water, the filter screens 7 intercept impurities in the water. A collection trough is located at the bottom of the water-facing side of the baffle 1, directly below the filter screens 7. The collection trough is detachable and used to collect the filtered impurities. The baffle 1 is made of a high-strength and corrosion-resistant material, such as stainless steel. The dimensions of the baffle 1 are customized according to the actual width and height of the cofferdam channel in the actual situation.

[0027] To better implement this utility model, refer to Figure 1 In one embodiment, multiple sliding grooves 3 are all provided on the baffle 1. That is, in this embodiment, sliding grooves 3 are provided on the baffles 1 on both sides of the filter screen 7, and a movable plate 2 is provided between the sliding grooves 3. The movable plate 2 can move along the sliding grooves 3 to cover the flow port, thereby opening and closing the flow port. When the movable plate 2 moves to be flush with the bottom of the baffle 1, it can completely cover the flow port, thus closing the flow port. The limiting component 4 is installed on the side wall of the movable plate 2 near the sliding groove 3, and is used to fix the movable plate 2 at a predetermined position in the sliding groove 3. When it is necessary to open the flow port, the movable plate 2 is lifted upward. After the movable plate 2 is adjusted to a suitable position, the position of the movable plate 2 is limited by the limiting component 4 and the limiting hole 10. This allows the movable plate 2 to be located at multiple height positions, thereby adjusting the size of the flow port.

[0028] To better implement this utility model, refer to Figure 1In one embodiment, each sliding groove 3 is provided with multiple limiting holes 10. The limiting holes 10 are used to cooperate with the limiting components 4 to adjust and limit the position and height of the moving plate 2. Multiple sets of limiting components 4 are provided in each sliding groove 3. When only one set of limiting components 4 is provided in each sliding groove 3, each sliding groove 3 has three limiting holes 10. The limiting blocks 401 in the limiting components 4 extend into the limiting holes 10 to limit the entire moving plate 2. With three limiting holes 10 in each sliding groove 3, the moving plate 2 has three adjustable heights. To further stabilize the moving plate 2 after it is raised, two sets of limiting components 4 are provided in each sliding groove 3. The distance between the limiting blocks 401 of the two sets of limiting components 4 is equal to the distance between any two adjacent limiting holes 10. With three limiting holes 10 in each sliding groove 3, the moving plate 2 has two adjustable heights.

[0029] When the moving plate 2 completely closes the flow port, in order to ensure the stability of the moving plate 2, a limiting hole 10 can be added to the lower part of the two sliding grooves 3. When the moving plate 2 completely closes the flow port, the limiting block 401 enters the limiting hole 10.

[0030] To better implement this utility model, refer to Figure 2 In one embodiment, the limiting component 4 includes a limiting block 401 and a telescopic component. The limiting block 401 is telescopically mounted in the telescopic cavity 8 via the telescopic component. The telescopic cavity 8 is located on the side wall of the moving plate 2 near the sliding groove 3. The limiting block 401 extends into the limiting hole 10 via the telescopic component to limit the position of the moving plate 2. The telescopic component includes multiple elastic elements 402 and multiple first telescopic rods 403. The elastic elements 402 can be return springs. One end of the first telescopic rod 403 is connected to the limiting block 401, and the other end is connected to the protrusion 9 in the telescopic cavity 8. The elastic elements 402 are sleeved on the first telescopic rods 403, with one end of the elastic element 402 connected to the limiting block 401 and the other end connected to the protrusion 9 in the telescopic cavity 8. The number of elastic elements 402 is the same as the number of first telescopic rods 403. In this embodiment, there is one elastic element 402 and one first telescopic rod 403. When two elastic elements 402 and two first telescopic rods 403 are provided, these two sets of elastic elements 402 and first telescopic rods 403 will be symmetrically arranged between the limiting block 401 and the protrusion 9 about the transverse axis of symmetry of the limiting block 401. When the limiting block 401 extends from one side of the limiting hole 10 near the moving plate 2 to the other side, the elastic element 402 is in a naturally straightened state, and the first telescopic rod 403 is stretched. When the limiting block 401 is squeezed into the telescopic cavity 8, both the first telescopic rod 403 and the elastic element 402 are compressed.

[0031] The telescopic assembly also includes multiple connecting rods 404 and multiple pistons 406. In this embodiment, there are two connecting rods 404 and two pistons 406, which are symmetrically arranged with protrusions 9. One end of each connecting rod 404 is hinged to the side of the limiting block 401 near the telescopic cavity 8, and the other end is hinged to the piston 406. Multiple pistons 406 are respectively located in piston chambers 5, which are located on both sides of the telescopic cavity 8 and communicate with it. The pistons 406 and protrusions 9 are connected by second telescopic rods 405. To further ensure the flexible extension and retraction and the stable positioning of the limiting block 401, the connecting rods 404 and pistons 406 are configured to cooperate with the movement of the limiting block 401. When the limiting block 401 is pressed into the telescopic cavity 8, the connecting rods 404 hinged to the limiting block 401 will compress the piston 406 to move along the piston chamber 5. To ensure the smooth movement of the piston 406, a second telescopic rod 405 is also provided between the piston 406 and the protrusion 9. When the limiting block 401 is pressed into the telescopic cavity 8, the piston 406 moves away from the protrusion 9, and the second telescopic rod 405 extends. When the limiting block 401 extends into the limiting hole 10 and out, the connecting rod 404 will drive the piston 406 to move towards the protrusion 9, and the second telescopic rod 405 will be compressed.

[0032] To better implement this utility model, refer to Figure 1 In one embodiment, a handle 6 is also included, which is disposed on the movable plate 2. The movable plate 2 can be moved up and down by means of the handle 6.

[0033] The baffle 1 is connected to the cofferdam on both sides and installed at the location of the channel to be set up on the cofferdam for drainage. The connection method can be plug-in fixing, bolt assembly, snap-fit ​​connection or welding. Taking plug-in fixing as an example, plug-in positioning plates are set on both sides of the baffle 1. The positioning plates are inserted into the pre-set slots or holes of the cofferdam. If necessary, bolts can be used for reinforcement to ensure that the baffle 1 is firmly installed between the cofferdam sections, which facilitates subsequent drainage from the baffle 1 into the cofferdam.

[0034] Based on the aforementioned cofferdam channel baffle, its working principle is as follows:

[0035] Install baffle 1 at the cofferdam where drainage is required. When drainage is required inside the cofferdam, in the initial state, the moving plate 2 closes the flow port. At this time, the limiting block 401 is squeezed into the telescopic cavity 8 by the sliding groove 3, and the elastic element 402 is compressed. The operator pulls the handle 6, which drives the moving plate 2 to move upward along the sliding groove 3. The limiting block 401 moves along the sliding groove 3. When it is aligned with the limiting hole 10, the elastic force of the elastic element 402 pushes the limiting block 401 into the limiting hole 10 for limiting. When the position of the moving plate 2 needs to be adjusted, the operator squeezes the limiting block 401, causing the limiting block 401 to disengage from the limiting hole 10. The limiting block 401 gradually enters the telescopic cavity 8. During this process, the connecting rod 404 will drive the piston 406 to move along the piston chamber 5, and the second telescopic rod 405 will extend. Under the squeezing action of the sliding groove 3, the limiting block 401 will remain pressed into the telescopic cavity 8, and the moving plate 2 can move along the sliding groove 3. When it encounters the next limiting hole 10, under the elastic force of the elastic element 402, the limiting block 401 will enter the limiting hole 10 to achieve the limiting effect on the moving plate 2.

[0036] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A cofferdam passage baffle, characterized in that, Includes a baffle, multiple sliding grooves, a moving plate, and a limiting assembly, wherein: The baffle is provided with a flow port, which is used to drain water from the cofferdam. Multiple sliding grooves are provided on the baffle plate, and the movable plate is provided between the sliding grooves; The movable plate can move along the sliding groove to cover or move away from the flow port, thereby opening and closing the flow port. The limiting component is installed on the side wall of the movable plate near the sliding groove, and is used to fix the movable plate at a predetermined position in the sliding groove.

2. The cofferdam passage baffle according to claim 1, characterized in that, Each of the sliding grooves is provided with multiple limiting holes, which are used to cooperate with the limiting component to adjust and limit the position and height of the moving plate.

3. The cofferdam passage baffle according to claim 2, characterized in that, The limiting component includes a limiting block and a telescopic component. The limiting block is telescopically installed in the telescopic cavity through the telescopic component. The telescopic cavity is located on the side wall of the moving plate near the sliding groove. The limiting block extends into the limiting hole through the telescopic component to limit the position of the moving plate.

4. The cofferdam passage baffle according to claim 3, characterized in that, The telescopic assembly includes multiple elastic elements and multiple first telescopic rods. One end of each first telescopic rod is connected to the limiting block, and the other end is connected to the protrusion inside the telescopic cavity. Each first telescopic rod is fitted with an elastic element, and one end of each elastic element is connected to the limiting block, and the other end is connected to the protrusion inside the telescopic cavity.

5. The cofferdam passage baffle according to claim 4, characterized in that, The telescopic assembly also includes multiple connecting rods and multiple pistons. One end of each connecting rod is hinged to the side of the limiting block near the telescopic cavity, and the other end is hinged to the piston. The multiple pistons are respectively disposed in piston chambers, which are located on both sides of the telescopic cavity and communicate with the telescopic cavity. The pistons and the protrusion are connected by a second telescopic rod.

6. The cofferdam passage baffle according to any one of claims 1-5, characterized in that, The flow port is equipped with multiple filter screens, and the pore size of the multiple filter screens decreases sequentially along the water flow direction.

7. The cofferdam passage baffle according to claim 1, characterized in that, It also includes a handle, which is disposed on the movable plate.

8. The cofferdam passage baffle according to claim 2, characterized in that, Each of the sliding grooves has multiple sets of limiting components.

9. The cofferdam passage baffle according to claim 1, characterized in that, The baffle is connected to the cofferdam on both sides and is installed at the location where the channel is to be set on the cofferdam for drainage.

10. The cofferdam passage baffle according to claim 1, characterized in that, The bottom of the water-facing side of the baffle is provided with a collection trough, which is used to collect filtered impurities.

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