Dam bag and ton bag combined cofferdam structure
By designing a combined cofferdam structure of dam bag and ton bag, the existing cofferdam technology has solved the problem of large construction span and high cost in water damage repair, and has achieved rapid installation and demolition, reducing construction costs and project period. Small impact on the environment.
Patent Information
- Application Number
- CN202421082477.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The existing cofferdam technology has problems such as large construction span, large earthwork volume, unenvironmental and difficult to demolish during water damage restoration, resulting in high construction costs and long project period.
A combination cofferdam structure of dam bag and ton bag is designed, including the dam bag main body and ton bag main body. Through the cooperation of the inlet pipe and the outlet pipe, rapid installation and removal are achieved, and the opening of the ton bag main body is sealed through the sealing component. Make sure the sand and gravel do not flow out.
It realizes rapid installation and demolition, reduces construction costs and project period, has a small impact on the environment, and has the characteristics of turnaround use.
Smart Images

Figure CN222500300U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cofferdams, and in particular relates to a dam bag and ton bag combined cofferdam structure. Background Art
[0002] Due to the impact of water damage, according to on-site investigation and statistics, bulges, collapses, cracks, etc. appeared in the small canal section, but the defects were not concentrated, continuous, and scattered. Most of them were below the water surface. The project volume was not large and the construction span was large. The maintenance of each lining plate required the installation of a cofferdam and combined with pumping and drainage to achieve dry land construction conditions. The use of grass-earth cofferdams or woven bag cofferdams requires a large amount of earthwork, is not environmentally friendly, and is difficult to dismantle cleanly. If steel cofferdams are used, a large amount of steel is used and the installation cost is high, which is not economical. A combined cofferdam of dam bags and ton bags has been developed. The installation is simple, time-saving and labor-saving, and can be quickly installed and dismantled. It has almost no impact on the environment, can be used in a turnover manner, has a low construction cost, and a short cofferdam project period;
[0003] This type of cofferdam can solve the problem of temporary engineering cofferdam construction during the major repair of channel engineering, quickly build the weir, rush the construction period and avoid water pollution;
[0004] In order to solve the above problems, the present application proposes a dam bag and ton bag combined cofferdam structure. Utility Model Content
[0005] To solve the problems raised in the above background technology, the utility model provides a dam bag and ton bag combined cofferdam structure, which has the characteristics of fast installation and removal, almost no impact on the environment, turnover, low construction cost and short cofferdam construction period.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dam bag and ton bag combined cofferdam structure, including a cofferdam assembly;
[0007] The cofferdam assembly includes a dam bag body and a water inlet pipe fixedly connected to the surface of the dam bag body, and the water inlet pipe and the interior of the dam bag body are interconnected, a first switch valve is installed inside the water inlet pipe, a water outlet pipe is fixedly connected to the surface of the dam bag body, and the water outlet pipe and the interior of the dam bag body are interconnected, a second switch valve is installed inside the water outlet pipe, a ton bag body is arranged on the back water side of the cofferdam assembly, and two slings are symmetrically fixedly connected to the surface of the ton bag body.
[0008] As a preferred embodiment of the utility model of a dam bag and ton bag combined cofferdam structure, the material of the dam bag main body is PVC dipped synthetic mesh material, the material of the ton bag main body is a polyurethane woven body, and the interior of the ton bag main body is filled with medium-coarse sand.
[0009] As a preferred embodiment of a combined cofferdam structure of a dam bag and a ton bag of the utility model, a second fixing ring is fixedly connected to the surface of the dam bag body, a slide groove is provided on the surface of the second fixing ring, a slider is provided inside the slide groove, the slider is slidably connected to the second fixing ring through the slide groove, a force shell is fixedly connected to the surface of the slider, a plurality of plug blocks are evenly fixedly connected to one end of the force shell away from the slider, a first fixing ring is fixedly connected to one end of the dam bag body away from the second fixing ring, and a plurality of slots are evenly and symmetrically provided on a side of the first fixing ring away from the dam bag body.
[0010] As a preferred embodiment of the utility model of a dam bag and ton bag combined cofferdam structure, the insert block is an L-shaped structure, and the slot is an L-shaped structural groove.
[0011] As a preferred embodiment of a dam bag and ton bag combined cofferdam structure of the utility model, a positioning ring is arranged inside the slide groove, and the positioning ring is rotatably connected with the second fixed ring through a bearing, and a plurality of springs are arranged inside the slide groove, and both ends of the springs are fixedly connected with the positioning ring and the slider respectively.
[0012] As a preferred embodiment of the utility model, a dam bag and ton bag combined cofferdam structure further comprises a sealing component arranged inside the ton bag body;
[0013] The closing component comprises a fixing groove opened inside the ton bag body, a draw rope is arranged inside the fixing groove, and the draw rope is slidably connected with the ton bag body through the fixing groove.
[0014] Compared with the prior art, the beneficial effects of the utility model are: a cofferdam component is added to the present application, and the water flow can be blocked by utilizing the cooperation between the dam bag body and the ton bag body, and at the same time, a closing component is added, and the opening of the ton bag body can be sealed by utilizing the cooperation between the fixing groove and the pull rope. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 This is a structural schematic diagram of a vertical cross-section of the main body of the dam bag in the utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the horizontal cross section of the main body of the ton bag in the utility model;
[0019] Figure 4 This is a structural schematic diagram of a vertical cross-section of the force-applying shell in the utility model;
[0020] Figure 5 This is a structural schematic diagram of a vertical cross-section of the first fixing ring in the utility model;
[0021] In the figure:
[0022] 1. Cofferdam assembly; 11. Dam bag body; 12. Water inlet pipe; 13. Water outlet pipe; 14. Ton bag body; 15. Sling; 16. First fixing ring; 17. Second fixing ring; 18. Slide; 19. Force shell; 110. Insert block; 111. Sliding block; 112. Positioning ring; 113. Spring; 114. Slot;
[0023] 2. Closure assembly; 21. Fixing groove; 22. Draw rope. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Example 1
[0026] like Figures 1 to 5 As shown;
[0027] Combining the above:
[0028] In order to realize rapid installation and removal, the dam bag and ton bag combined cofferdam structure comprises a cofferdam assembly 1;
[0029] The cofferdam assembly 1 includes a dam bag body 11 and an inlet pipe 12 fixedly connected to the surface of the dam bag body 11, and the inlet pipe 12 and the interior of the dam bag body 11 are interconnected, a first switch valve is installed inside the inlet pipe 12, a water outlet pipe 13 is fixedly connected to the surface of the dam bag body 11, and the water outlet pipe 13 and the interior of the dam bag body 11 are interconnected, a second switch valve is installed inside the outlet pipe 13, a ton bag body 14 is arranged on the back water side of the cofferdam assembly 1, two slings 15 are symmetrically fixedly connected to the surface of the ton bag body 14, the material of the dam bag body 11 is PVC dipped synthetic mesh material, the material of the ton bag body 14 is polyurethane braided body, and the interior of the ton bag body 14 is filled with medium and coarse sand.
[0030] In this embodiment: when a cofferdam is needed, the dam bag body 11 is placed in an appropriate position, and water is pumped into the dam bag body 11 through the water inlet pipe 12 by an external water pump until the dam bag body 11 can block the water flow, and then medium and coarse sand is filled into the interior of the ton bag body 14, and the ton bag body 14 is lifted by a crane through a sling 15 and placed on the back water side of the dam bag body 11 to achieve a cofferdam.
[0031] It should be noted that the ton bag body 14 filled with sand and gravel is placed on the back water side of the dam bag body 11 to prevent the water flow on the front water side from moving the dam bag body 11 when the water flow on the back water side decreases.
[0032] Going further:
[0033] In an optional embodiment, a second fixing ring 17 is fixedly connected to the surface of the dam bag body 11, a slide groove 18 is provided on the surface of the second fixing ring 17, a slider 111 is arranged inside the slide groove 18, the slider 111 is slidingly connected to the second fixing ring 17 through the slide groove 18, a force shell 19 is fixedly connected to the surface of the slider 111, a plurality of plug blocks 110 are evenly fixedly connected to one end of the force shell 19 away from the slider 111, a first fixing ring 16 is fixedly connected to one end of the dam bag body 11 away from the second fixing ring 17, a plurality of slots 114 are evenly and symmetrically provided on one side of the first fixing ring 16 away from the dam bag body 11, the plug block 110 is an L-shaped structure, and the slot 114 is an L-shaped structural groove.
[0034] It should be noted that the minimum width of the slot 114 is greater than the maximum width of the insert block 110 , thereby making it easier for the staff to place the insert block 110 into the slot 114 .
[0035] In this embodiment, when the area to be fenced is large, the two dam bag bodies 11 are connected end to end, and force is applied to the force-applying shell 19 , and the insert block 110 is inserted into the inside of the slot 114 , thereby realizing the connection between the two dam bag bodies 11 .
[0036] Going further:
[0037] In an optional embodiment, a positioning ring 112 is provided inside the slide groove 18, and the positioning ring 112 is rotatably connected to the second fixed ring 17 through a bearing. A plurality of springs 113 are provided inside the slide groove 18, and the two ends of the spring 113 are fixedly connected to the positioning ring 112 and the slider 111 respectively.
[0038] In this embodiment: after the plug 110 is inserted into the slot 114, the force shell 19 is rotated, and the plug 110 will engage with each other through the slot 114 and the first fixing ring 16. When disassembling, the force shell 19 is rotated in the opposite direction, and the spring 113 will pull the plug 110 out of the slot 114 due to its elastic potential energy, thereby realizing the removal of the two dam bag bodies 11.
[0039] Going further:
[0040] In an optional embodiment, it further includes a closing component 2 disposed inside the ton bag body 14;
[0041] The closing assembly 2 includes a fixing groove 21 provided inside the ton bag body 14 . A pull rope 22 is provided inside the fixing groove 21 . The pull rope 22 is slidably connected to the ton bag body 14 through the fixing groove 21 .
[0042] In this embodiment, when the ton bag body 14 is filled with medium-coarse sand, the two ends of the pull rope 22 are pulled upward to tighten the opening of the ton bag body 14 to prevent the sand and gravel inside from flowing out.
[0043] The working principle and use process of the utility model are as follows: when a cofferdam is needed, the dam bag body 11 is placed in an appropriate position, and water is poured into the interior of the dam bag body 11 through the water inlet pipe 12 by an external water pump until the dam bag body 11 can block the water flow, and then medium-coarse sand is filled into the interior of the ton bag body 14, and the ton bag body 14 is lifted by a crane through a sling 15 and placed on the back water surface of the dam bag body 11 to realize the cofferdam. When the range to be fenced is large, the two dam bag bodies 11 are connected end to end, and force is applied to the force shell 19, and the plug 110 is inserted into the slot 114. The inside of the ton bag is connected to the inside of the two dam bag bodies 11. When the plug 110 is inserted into the inside of the slot 114, the force shell 19 is rotated, and the plug 110 will be engaged with each other through the slot 114 and the first fixing ring 16. When disassembling, the force shell 19 is rotated in the opposite direction, and the spring 113 will pull the plug 110 out of the inside of the slot 114 due to the elastic potential energy, thereby realizing the removal of the two dam bag bodies 11. When the ton bag body 14 is filled with medium and coarse sand, the two ends of the pull rope 22 are pulled upward to tighten the opening of the ton bag body 14 to prevent the internal sand and gravel from flowing out.
[0044] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A dam bag and ton bag combined cofferdam structure, characterized by: It comprises a cofferdam assembly (1); The cofferdam assembly (1) comprises a dam bag body (11) and a water inlet pipe (12) fixedly connected to the surface of the dam bag body (11), wherein the water inlet pipe (12) and the interior of the dam bag body (11) are mutually connected, a first switch valve is installed inside the water inlet pipe (12), a water outlet pipe (13) is fixedly connected to the surface of the dam bag body (11), wherein the water outlet pipe (13) and the interior of the dam bag body (11) are mutually connected, a second switch valve is installed inside the water outlet pipe (13), and a ton bag body (14) is arranged on the back water side of the cofferdam assembly (1), and two slings (15) are symmetrically fixedly connected to the surface of the ton bag body (14).
2. The dam bag and ton bag combined cofferdam structure according to claim 1 is characterized by: The material of the dam bag body (11) is a PVC-impregnated synthetic mesh material, the material of the ton bag body (14) is a polyurethane braided body, and the interior of the ton bag body (14) is filled with medium-coarse sand.
3. The dam bag and ton bag combined cofferdam structure according to claim 1 is characterized by: A second fixing ring (17) is fixedly connected to the surface of the dam bag body (11), a sliding groove (18) is provided on the surface of the second fixing ring (17), a slider (111) is arranged inside the sliding groove (18), the slider (111) is slidingly connected to the second fixing ring (17) through the sliding groove (18), a force shell (19) is fixedly connected to the surface of the slider (111), a plurality of plug blocks (110) are evenly fixedly connected to one end of the force shell (19) away from the slider (111), a first fixing ring (16) is fixedly connected to one end of the dam bag body (11) away from the second fixing ring (17), a plurality of slots (114) are evenly and symmetrically provided on one side of the first fixing ring (16) away from the dam bag body (11).
4. The dam bag and ton bag combined cofferdam structure according to claim 3 is characterized by: The insert block (110) is an L-shaped structure, and the slot (114) is an L-shaped structural slot.
5. The dam bag and ton bag combined cofferdam structure according to claim 3 is characterized by: A positioning ring (112) is arranged inside the slide groove (18), and the positioning ring (112) is rotatably connected to the second fixing ring (17) via a bearing. A plurality of springs (113) are arranged inside the slide groove (18), and two ends of the springs (113) are fixedly connected to the positioning ring (112) and the sliding block (111) respectively.
6. The dam bag and ton bag combined cofferdam structure according to claim 1 is characterized in that: It also includes a sealing component (2) arranged inside the ton bag body (14); The closing assembly (2) comprises a fixing groove (21) provided inside the ton bag body (14), a pull rope (22) being arranged inside the fixing groove (21), and the pull rope (22) being slidably connected to the ton bag body (14) through the fixing groove (21).