Waterproof structure combined with in-well diversion cofferdam
By using a double-layer waterproof structure with inner and outer diaphragms and an internal support mechanism, the construction difficulties and leakage problems of the diversion cofferdam in the narrow connecting well were solved, achieving better waterproof performance and convenient disassembly and assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-27
AI Technical Summary
The existing diversion cofferdam is difficult to construct and dismantle in the narrow connecting well, and the steel plate enclosure structure is prone to leakage under water pressure, which affects construction safety.
It adopts a double-layer waterproof structure with an inner layer and an outer layer. The inner and outer layers are set alternately and the connection is strengthened by an internal support mechanism. The sealing is improved by using a U-shaped buckle and waterproof cloth. Sandbags are filled between the inner and outer layers to enhance stability.
It improves the waterproofing effect of the diversion cofferdam, ensures construction safety, simplifies the disassembly and assembly process, and prevents water leakage from the joints.
Smart Images

Figure CN224048194U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of diversion cofferdams in well, more specifically, it relates to a kind of waterproof structure of diversion cofferdam in well. BACKGROUND
[0002] In river regulation engineering, it is often necessary to reproduce in well for gate addition, replacement operation, generally such engineering needs to be carried out pipeline flow after construction, but for some large flow pipeline, there may be no flow situation, construction personnel in narrow well with water operation, with certain risk, at present, the diversion cofferdam of market is generally formed by concrete pouring, the space in well is relatively narrow, and the diversion cofferdam formed by pouring is difficult to construct, and it is also relatively inconvenient to disassemble in later period, and another diversion cofferdam is formed by surrounding with steel plate, and the adjacent two steel plates are connected by back-shaped buckle, but the water surface is impacted unevenly, so that some connection positions appear water leakage phenomenon, which brings certain trouble to operating personnel, therefore, the diversion cofferdam formed by surrounding with steel plate needs to be improved. SUMMARY
[0003] The utility model aims at providing a kind of waterproof structure of diversion cofferdam in well.
[0004] The utility model discloses a kind of waterproof structure of diversion cofferdam in well, which solves the technical problems thereof by adopting the technical scheme that:
[0005] A kind of waterproof structure of diversion cofferdam in well, including inner partition and outer partition, the inner partition and outer partition are all formed by the splicing of several steel plates, the inner partition and outer partition are spaced apart, and a plurality of inner support mechanisms are arranged in the spacing space at equal intervals, the two ends of the inner support mechanism are respectively in abutment with the outer layer of the inner partition and the inner side of the outer partition.
[0006] Preferably, the outer side of the outer partition is provided with one or more layers of waterproof cloth.
[0007] Preferably, any two adjacent steel plates are connected by back-shaped buckle.
[0008] Preferably, the inner support mechanism includes an outer pressing plate, an inner pressing plate and a length-adjustable cross bar, the outer pressing plate is in abutment with the inner side of the outer partition, the inner pressing plate is in abutment with the outer side of the inner partition, and the cross bar is arranged between the inner pressing plate and the outer pressing plate, and the two ends thereof are respectively in abutment with the inner pressing plate and the outer pressing plate.
[0009] Preferably, the inner support mechanism further includes an inner support piece, the inner support piece is provided with two, and is fixedly connected with the inner pressing plate and the outer pressing plate, and the cross bar is in abutment between the two inner support pieces.
[0010] Preferably, the gap between the inner partition and the outer partition is filled with sandbags.
[0011] Preferably: the crossbar in each of the inner support mechanisms is provided with two or more.
[0012] The beneficial effects of the utility model are: the double waterproof isolation of the inner partition layer and the outer partition layer is adopted, the isolation effect is better, the inner support mechanism is added to apply uniform pressure to the inner partition layer and the outer partition layer, the cooperation of the back-shaped buckle clamping part is more compact, water is prevented from seeping from the clamping part, the waterproof effect is further improved, and the inner partition layer and the outer partition layer are spliced, and the disassembly and assembly are relatively convenient. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a schematic diagram of the waterproof structure of the well guide flow cofferdam Figure 1 ;
[0014] Figure 2 is a schematic diagram of the waterproof structure of the well guide flow cofferdam Figure 2 ;
[0015] In the drawing: 1, inner partition layer; 2, outer partition layer; 3, inner support mechanism; 31, outer pressing plate; 32, inner pressing plate; 33, crossbar; 34, inner support piece; 4, waterproof cloth; 5, sandbag. DETAILED DESCRIPTION
[0016] 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.
[0017] 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.
[0018] In the utility model, unless otherwise stated, the directions used such as "up, down" are generally directed to the directions shown in the drawings, or are directed to the vertical, perpendicular or gravity directions; similarly, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above direction words are not used to limit the utility model.
[0019] According to Figures 1-2As shown, a kind of waterproof structure of the diversion cofferdam in well, including inner partition 1 and outer partition 2, inner partition 1 and outer partition 2 are formed by splicing several steel plates, any two adjacent steel plates are connected by back-shaped buckle, inner partition 1 and outer partition 2 are spaced apart, and the gap between inner partition 1 and outer partition 2 is filled with sandbag 5, and a plurality of equidistantly distributed inner support mechanisms 3 are further arranged in the interval space, the two ends of inner support mechanism 3 are respectively in abutment with the outer layer of inner partition 1 and the inner side of outer partition 2, and the outer side of outer partition 2 is tied with a layer of waterproof cloth 4.
[0020] According to Figures 1-2 As shown, inner support mechanism 3 includes outer pressing plate 31, inner pressing plate 32, inner support piece 34 and adjustable length cross bar 33, outer pressing plate 31 is in abutment with the inner side of outer partition 2, inner pressing plate 32 is in abutment with the outer side of inner partition 1, cross bar 33 is arranged between inner pressing plate 32 and outer pressing plate 31, and the two ends thereof are respectively in abutment with inner pressing plate 32 and outer pressing plate 31, and inner support piece 34 is provided with two, which are respectively fixedly connected with inner pressing plate 32 and outer pressing plate 31, and cross bar 33 is in abutment between the two inner support pieces 34.
[0021] According to Figures 1-2 As shown, inner partition 1 and outer partition 2 are surrounded into concentric circles, outer pressing plate 31 and inner pressing plate 32 are both arranged in arc shape, outer pressing plate 31 is two widths of the steel plate constituting outer partition 2, inner pressing plate 32 is two widths of the steel plate constituting inner partition, outer pressing plate 31 and inner pressing plate 32 are installed staggered with the steel plate, can be in abutment with two buckling positions at the same time, the setting of outer pressing plate 31 and inner pressing plate 32 plays a role in increasing the contact area of cross bar 33, inner support piece 34 is welded on outer pressing plate 31 and inner pressing plate 32 respectively, hook grooves are formed on the side of inner support piece 34 relative to cross bar 33, the grooves extend along the length direction of inner support piece 34, the two ends of cross bar 33 are both provided with sliding block for connecting with the hook grooves, cross bar 33 is composed of two threaded connecting rods, the two connecting rods are threadedly connected with a sleeve, and rotating the sleeve is to shorten or pull out the distance between the two connecting rods, so as to adjust the length of cross bar 33.
[0022] The two cross bars 33 in each inner support mechanism 3 are arranged in upper and lower spaced-apart manner, and the plurality of inner support mechanisms 3 in the utility model are evenly distributed along the circumferential direction.
[0023] According to Figures 1-2 As shown, double-layer waterproof isolation of inner partition 1 and outer partition 2 is adopted, the isolation effect is better, and the inner support mechanism 3 applies uniform pressure to inner partition 1 and outer partition 2, so that the cooperation of the back-shaped buckle connection is more compact, water is prevented from seeping from the connection position, the waterproof effect is further improved, and when inner partition 1 and outer partition 2 are spliced, disassembly and assembly are more convenient.
[0024] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.
[0025] It should be noted that the terms "first", "second", and the like, herein do not necessarily have an either chronological or spatial relation. Rather, these terms can be used solely to distinguish a certain specific entity from another entity. It should be understood that the terms so used in the description are interchangeable under appropriate circumstances and embodiments of the application described herein are capable of operating in other sequences than described or illustrated herein.
[0026] The preferred embodiments of the present application have been described above with the aid of drawing figures, and are not limited to those embodiments; instead, they will include any changes that do not constitute departures from the spirit and scope of the present application.
Claims
1. A waterproof structure combined with a flow guiding cofferdam in a well, characterized by: It comprises inner partition layer (1) and outer partition layer (2), the inner partition layer (1) and outer partition layer (2) are all formed by splicing several steel plates, the inner partition layer (1) and outer partition layer (2) are arranged at intervals, a plurality of inner support mechanisms (3) are arranged in the interval space and are distributed at equal intervals, and the two ends of the inner support mechanism (3) are respectively in abutment with the outer layer of the inner partition layer (1) and the inner side of the outer partition layer (2).
2. The waterproof structure according to claim 1, wherein the waterproof structure is characterized by: The outer side of the outer partition layer (2) is provided with one or more waterproof cloth (4).
3. The waterproof structure with a flow guiding cofferdam in a well according to claim 2, characterized in that: Any two adjacent steel plates are connected by a back-shaped buckle.
4. The waterproof structure with a flow guiding cofferdam in a well according to claim 3, characterized in that: The inner support mechanism (3) comprises outer pressing plate (31), inner pressing plate (32) and adjustable length cross bar (33), the outer pressing plate (31) is in abutment with the inner side of the outer partition layer (2), the inner pressing plate (32) is in abutment with the outer side of the inner partition layer (1), the cross bar (33) is arranged between the inner pressing plate (32) and the outer pressing plate (31), and the two ends of the cross bar (33) are respectively in abutment with the inner pressing plate (32) and the outer pressing plate (31).
5. The waterproof structure incorporating a flow-conducting cofferdam in a well according to claim 4, characterized in that: The inner support mechanism (3) further comprises inner support piece (34), the inner support piece (34) is provided with two and is fixedly connected with the inner pressing plate (32) and the outer pressing plate (31), and the cross bar (33) is in abutment between the two inner support pieces (34).
6. The waterproof structure with a flow guiding cofferdam in a well according to claim 5, characterized in that: The gap between the inner partition layer (1) and the outer partition layer (2) is filled with sandbags (5).
7. The waterproof structure with a flow guiding cofferdam in a well according to claim 6, characterized in that: The cross bar (33) in each inner support mechanism (3) is provided with two or more than two.