Flow guide cofferdam combined in well

Abstract

The utility model discloses a diversion cofferdam in a combined well, which comprises an operating platform, a cofferdam body and a plurality of foot columns, the plurality of foot columns are distributed on the periphery of the operating platform, the operating platform can lift on the foot columns, the bottom of the cofferdam body is hermetically connected with the upper end face of the operating platform, and the cofferdam body is connected with the lower end face of the operating platform. And the cofferdam body and the working platform form an isolation space. The stilts are in contact with the bottom in the combination well to suspend the working table, the situation that the cofferdam body cannot isolate water flow due to complexity in the working well is avoided, the water flow is prevented from permeating into the isolation space from the bottom of the cofferdam body, in addition, the suspended working table can reduce the height of the cofferdam body to a certain extent, the resistance of the upstream face is reduced, and the service life of the cofferdam body is prolonged. And the cofferdam body is more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cofferdam technical field, more specifically, it relates to a guide cofferdam combined with a well. BACKGROUND

[0002] With the rapid development of city construction, many urban rain and sewage pipe networks cannot meet the current use demand, and more rain and sewage pipe network reconstruction comes along. The construction workers can only work in the narrow combined well with water, and the air quality in the well is poor and hot, which has certain safety hidden danger. In the rainy season, the water in the combined well may rise at any time, and the construction risk is greater. Therefore, a guide cofferdam is needed, which can isolate a space in the combined well and facilitate construction work. UTILITARY MODEL CONTENT

[0003] The utility model aims at providing a guide cofferdam combined with a well to solve the above problems.

[0004] The utility model adopts the technical scheme that:

[0005] A guide cofferdam combined with a well, which comprises a workbench, a cofferdam body and a plurality of foot columns, the plurality of foot columns are distributed around the workbench, the workbench can be lifted on the foot columns, the bottom of the cofferdam body is sealingly connected with the upper end surface of the workbench, and the cofferdam body and the workbench form an isolated space.

[0006] Preferably, the cofferdam body comprises an inner frame and an outer frame, the space between the outer frame and the inner frame is filled with sandbags stacked one by one, and the outer side of the outer frame is provided with a water-facing protective layer.

[0007] Preferably, the water-facing protective layer comprises filter cloth and waterproof cloth arranged in turn from outside to inside, and both are tied on the outer frame.

[0008] Preferably, the foot column is provided as a threaded rotating rod, and the plurality of foot columns are all threadedly connected with the workbench.

[0009] Preferably, the top end of the foot column is provided as a polygon, and a belt pulley is installed on each foot column at the same height.

[0010] Preferably, the foot column is composed of a plurality of rod segments coaxially spliced, and one of the rod segments is provided with external threads.

[0011] Preferably, the bottom of the plurality of foot columns is provided with a ball head.

[0012] The utility model discloses beneficial effect is: the foot column is contacted with the bottom in the combined well and makes the operation platform suspend, avoids the complexity in the operation well and leads to the cofferdam body unable to insulate the water flow, prevents the water flow from the bottom of cofferdam body and seeps into the isolated space, in addition, the operation platform of suspension can reduce the height of cofferdam body itself to a certain extent, reduces the resistance of water surface, makes cofferdam body more stable. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the schematic diagram of the diversion cofferdam in the combined well Figure 1 ;

[0014] Figure 2 It is the schematic diagram of the diversion cofferdam in the combined well Figure 2 ;

[0015] Figure 3 For Figure 2 It is the enlarged view of A in figure

[0016] In the drawing: 1, operation platform;2, cofferdam body;21, inner frame;22, outer frame;23, sandbag;24, water surface protection layer;3, foot column;31, ball head;4, belt pulley. DETAILED DESCRIPTION

[0017] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0019] In the utility model, the orientation such as "up, down" is generally for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction, unless otherwise stated. Similarly, for the convenience of understanding and description, "left, right" is generally for the left and right shown in the drawing, and "inner, outer" refers to the inner and outer of the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0020] According to Figures 1-3 As shown in the figure, a diversion cofferdam in a combined well comprises an operation platform 1, a cofferdam body 2 and four foot columns 3. The operation platform 1 is rectangular, the four foot columns 3 are distributed at the four corner positions of the operation platform 1, and the operation platform 1 is liftable on the foot columns 3. The bottom of the cofferdam body 2 is sealingly connected with the upper end surface of the operation platform 1, and the cofferdam body 2 and the operation platform 1 constitute an isolated space. The pipeline is constructed by the operating personnel in the isolated space, which is safe and convenient.

[0021] According to Figures 1-3As shown, the cofferdam body 2 comprises an inner frame 21 and an outer frame 22, and the space between the inner frame 21 and the outer frame 22 is filled with sandbags 23 stacked one by one, and the outer side of the outer frame 22 is provided with a water-facing protective layer 24. The water-facing protective layer 24 comprises filter cloth and waterproof cloth arranged from outside to inside, and is tied on the outer frame 22. The outer frame 22 and the inner frame 21 are made of steel pipes welded together, and are fixedly connected with the operation platform 1 through bolts, which are convenient to disassemble and assemble. The sandbags 23 stacked between the outer frame 22 and the inner frame 21 can improve the water pressure resistance of the water-facing protective layer 24 and further prevent water from seeping in.

[0022] According to Figures 1-3 As shown, the foot column 3 can rotate relative to the operation platform 1, and the bottom of each of the four foot columns 3 is provided with a ball head 31. The foot column 3 is composed of a plurality of coaxially connected rod segments, one of which is provided with an external thread, and the rod segment with the external thread is threadedly connected with the operation platform 1. The top end of the foot column 3 is provided with a polygonal shape, and each foot column 3 is provided with a belt pulley 4 at the same height. The ball head 31 can reduce the resistance when the foot column 3 rotates, and the foot column 3 can be manually rotated by a wrench, or can be rotated by a motor. When the motor is used to drive the rotation, the adjacent two foot columns 3 are connected by a belt, and the belt is installed on the belt pulleys 4 on the adjacent two foot columns 3. Each belt pulley 4 is provided with a double-belt groove to avoid belt misalignment. In addition, the number of rod segments constituting the foot column 3 can be adjusted according to the actual water level in the combined well, thereby improving the application range of the utility model.

[0023] According to Figures 1-3 As shown, the foot column 3 is in contact with the bottom of the combined well to suspend the operation platform 1, so that the cofferdam body 2 cannot isolate the water flow due to the complexity of the operation well, and the water flow is prevented from seeping into the isolation space from the bottom of the cofferdam body 2. In addition, the suspended operation platform 1 can reduce the height of the cofferdam body 2 to some extent, reduce the resistance of the water-facing surface, and make the cofferdam body 2 more stable.

[0024] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0025] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and in the above-described drawings are used only for distinguishing between similar objects and do not necessarily have to describe a specific sequential or chronological order. It is to be understood that the data so distinguished can be interchanged, under appropriate circumstances, such that the embodiments of the present application described herein can be practiced in other than the illustrated or described order.

[0026] The preferred embodiments of the present application have been described above with the specific details. Obviously, the present application can be carried out without the specific details. It is to be understood that the above-described embodiments are only used to illustrate the present application, and the present application can be modified and changed in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A flow-conducting cofferdam for use in conjunction with a well, characterized in that: The utility model provides a cofferdam, including workbench (1), cofferdam body (2) and a plurality of foot column (3), a plurality of foot column (3) are distributed in the periphery of workbench (1), and workbench (1) is liftable on foot column (3), the bottom of cofferdam body (2) is sealedly connected with the upper end surface of workbench (1), and cofferdam body (2) and workbench (1) constitute isolated space.

2. The flow-confining cofferdam in a wellbore of claim 1, characterized by: The cofferdam body (2) includes an inner frame (21) and an outer frame (22), the space between the outer frame (22) and the inner frame (21) is filled with sandbags (23), and the outer side of the outer frame (22) is provided with a water-facing protective layer (24).

3. The flow-confining cofferdam within a well of claim 2, wherein: The water-facing protective layer (24) includes filter cloth and waterproof cloth arranged from outside to inside, and both are tied on the outer frame (22).

4. The flow-confining cofferdam within a well of claim 3, wherein: The foot column (3) is provided as a threaded rotating rod, and a plurality of foot columns (3) are threadedly connected with the workbench (1).

5. The flow-confining cofferdam within a well of claim 4, wherein: The top end of the foot column (3) is provided as a polygon, and each foot column (3) is provided with a belt pulley (4) at the same height.

6. The flow-confining cofferdam within a well of claim 5, wherein: The foot column (3) is composed of a plurality of rod segments coaxially connected, and one of the rod segments is provided with external threads.

7. The flow-confining cofferdam within a well of claim 6, characterized by: The bottom of each foot column (3) is provided with a ball head (31).

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