Portable quick-assembly cofferdam device for runner maintenance and drainage

Abstract

The utility model relates to the technical field of water retaining devices for water conservancy projects, in particular to a portable quick-assembly cofferdam device for overhauling and draining a flow channel. Comprising an inner core which is integrally in a long strip shape; the plastic part comprises a plurality of side plates, the side plates are attached to the inner side and the outer side of the inner core at equal intervals, and a gap between every two adjacent side plates forms a folding seam; the plurality of side plates are bent along the folding seams according to the terrain of the flow channel to form a three-dimensional cofferdam structure; the limiting parts are arranged on the outer sides of the side plates and used for fixedly connecting the side plates on the same side; the bottom supporting counterweight part is arranged at the bottom of the inner core, and the bottom of the bottom supporting counterweight part is attached to the runner; a corresponding three-dimensional cofferdam structure can be freely combined according to the environment, and the combined three-dimensional cofferdam has the advantages of being flexible in combination, convenient to transport and store, good in sealing performance, high in adaptability and high in stability, the difficulty of the cofferdam can be effectively reduced, the maintenance time can be effectively shortened, the working efficiency is improved, and the labor intensity is relieved.

Description

A portable, quick-assembly cofferdam device for drainage during channel maintenance. Technical Field

[0001] This utility model relates to the technical field of water-retaining devices for water conservancy projects, and in particular to a portable, quick-installation cofferdam device for drainage during channel maintenance. Background Technology

[0002] In recent years, with the country's continued attention and strong investment in water conservancy, a series of large-scale water conservancy projects have sprung up across the country. These projects cover multiple aspects, including the construction of water conservancy hubs, comprehensive river management, flood control and drainage system construction, and optimization of irrigation and water supply networks. They aim to comprehensively improve the efficiency of water resource utilization in my country, optimize the water resource allocation pattern, enhance the flood control and disaster reduction capabilities of water conservancy facilities, and promote the continuous improvement of livelihood projects such as agricultural irrigation and urban and rural water supply. The implementation of these projects not only helps to improve the ecological environment and raise people's living standards, but also promotes the balanced development of regional economies to a certain extent, injecting strong impetus into the sustainable development of the national economy and society.

[0003] According to the "Work Instructions for Repairing Damaged Concrete Flow Channel Surfaces in Power Plants", there are clear work standards for the flow channel repair process.

[0004] Currently, there are large-scale repair and painting equipment for large-diameter caverns such as spillways, but for smaller inlet sizes such as inlet channels and tailrace channels, manual repair is still the main method. Among the defects, damage, cracks and holes are the most common, and they are numerous and widespread. The maintenance period for channels is often short, and the water in the channels often cannot be completely drained. It is necessary to build cofferdams or water-blocking plates to drain the water before repair.

[0005] However, the method of building cofferdams has drawbacks such as large construction volume, high cost, poor anti-seepage performance, and difficulty in dismantling.

[0006] Most of the water barriers on the market are fixed structures, which are not only difficult to carry, but also cannot be changed according to the terrain of the flow channel, resulting in poor adaptability. Summary of the Invention

[0007] In view of the problems existing in the above-mentioned portable quick-installation cofferdam devices used for channel maintenance and drainage, this utility model is proposed.

[0008] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes a portable, quick-assembly cofferdam device for drainage during channel maintenance, comprising,

[0009] The inner core is elongated in shape.

[0010] The plastic part includes several side plates, which are equidistantly fitted to the inner and outer sides of the inner core, and the gap between two adjacent side plates forms a folding seam.

[0011] Several of the side plates are bent along the fold joints according to the topography of the flow channel to form a three-dimensional cofferdam structure;

[0012] The limiting part is set on the outside of the side panel and is used to fix and connect the side panels on the same side.

[0013] The bottom support counterweight is located at the bottom of the inner core, and its bottom fits into the flow channel;

[0014] The reinforcement section is horizontally mounted on the three-dimensional cofferdam structure to ensure the stability of the overall structure.

[0015] In a preferred embodiment of the portable quick-installation cofferdam device for channel maintenance and drainage described in this utility model: through holes are provided on both the inner core and the side plate, and the through holes are used to install bolts to fix the side plate on the inner core.

[0016] In a preferred embodiment of the portable quick-installation cofferdam device for channel maintenance and drainage described in this utility model: the side plate includes an outer plate, an inner plate, an outer second plate, and an inner second plate.

[0017] In a preferred embodiment of the portable quick-installation cofferdam device for channel maintenance and drainage described in this utility model: the outer plate and the inner plate are symmetrically arranged on both sides of the inner core, the outer second plate is perpendicular to the outer first plate and installed on the outer side of the inner core, and the inner second plate is perpendicular to the inner first plate and installed on the inner side of the inner core.

[0018] In a preferred embodiment of the portable quick-assembly cofferdam device for channel maintenance and drainage described in this utility model: the outer plate and the inner plate have the same size, the length of the inner plate is greater than the length of the outer plate, and an outward folding seam is left between the outer plate and the outer plate.

[0019] In a preferred embodiment of the portable quick-installation cofferdam device for channel maintenance and drainage described in this utility model: the limiting part includes a strip plate one and a strip plate two, and the strip plate one and the strip plate two are arranged parallel to each other.

[0020] In a preferred embodiment of the portable quick-assembly cofferdam device for channel maintenance and drainage described in this utility model: a pin is rotatably connected to the middle section of the first strip plate, and an L-shaped rod is installed on the second strip plate, forming an opening between the L-shaped rod and the second strip plate for the pin to screw into.

[0021] In a preferred embodiment of the portable quick-assembly cofferdam device for channel maintenance and drainage described in this utility model: the bottom support counterweight part includes two long strip-shaped balloons, and the balloons are filled with counterweight medium.

[0022] In a preferred embodiment of the portable quick-installation cofferdam device for channel maintenance and drainage described in this utility model: the length of the elongated balloon is the same as the length of the inner core, and the elongated balloon and the inner core are bonded together by hot-melt curing.

[0023] In a preferred embodiment of the portable quick-assembly cofferdam device for channel maintenance and drainage described in this utility model: the reinforcing part includes a mounting plate, and hook plates are provided on both sides of the mounting plate, and the mounting plate and the hook plates are telescopically connected by a telescopic component.

[0024] The beneficial effects of this utility model are as follows: This utility model can be arbitrarily combined into a corresponding three-dimensional cofferdam structure according to the environment. It has the advantages of flexible combination, convenient transportation and storage, good sealing performance, strong adaptability and high stability. It can effectively reduce the difficulty of cofferdam construction and maintenance time, improve work efficiency and reduce labor intensity. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model and are not intended to limit the scope of this utility model. Wherein:

[0026] Figure 1 shows a three-dimensional structural diagram of a portable quick-assembly cofferdam device for drainage during channel maintenance;

[0027] Figure 2 shows a diagram of a convex three-dimensional cofferdam structure for a portable quick-assembly cofferdam device used for drainage during channel maintenance.

[0028] Figure 3 shows a hexagonal three-dimensional cofferdam structure diagram of a portable quick-assembly cofferdam device for drainage during channel maintenance;

[0029] Figure 4 shows a cross-sectional view of a portable quick-assembly cofferdam device used for drainage during channel maintenance;

[0030] Figure 5 shows the structure of the bent state in Figure 4;

[0031] Figure 6 shows an enlarged structural diagram of point A in Figure 2;

[0032] Figure 7 shows a structural diagram of the reinforced part in a portable quick-assembly cofferdam device used for drainage during channel maintenance. Detailed Implementation

[0033] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0034] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0035] Referring to Figures 1-3, this embodiment provides a portable, quick-assembly cofferdam device for drainage during channel maintenance, comprising:

[0036] Inner core 1, which is long and narrow in shape;

[0037] The plastic part 2 includes several side plates 21, which are equidistantly attached to the inner and outer sides of the inner core 1, and the gap between two adjacent side plates 21 forms a folding seam 22.

[0038] Several side plates 21 are bent along the fold joints 22 according to the topography of the flow channel to form a three-dimensional cofferdam structure;

[0039] Specifically, the inner core 1 is 4000mm long and 4mm wide, and it is made of silicone material, which has the advantages of high elasticity and good bending performance.

[0040] The side panel 21 is 100mm wide and 500mm long. The gap between two adjacent side panels 21 is 25mm. The side panel 21, as a rigid material, is combined with the softness of the inner core 1 and can be bent arbitrarily along the folding seam 22 to meet the enclosure of different terrains.

[0041] One end of the inner core 1 is provided with a C-shaped groove, and the other end is provided with a cylindrical block. When the inner core 1 is enclosed, the cylindrical block is embedded in the C-shaped groove, which can achieve a sealing effect and avoid leakage caused by gaps.

[0042] Both the inner core 1 and the side plate 21 are provided with through holes for mounting bolts to fix the side plate 21 onto the inner core 1.

[0043] This structure can be arbitrarily combined according to the terrain of the channel repair site, and is particularly suitable for channel bends and diameter changes. It has the advantages of flexible and convenient combination, which greatly reduces the difficulty of cofferdam construction and shortens maintenance time.

[0044] At the same time, when carrying, it can be folded along the fold seam 22 and several side panels 21 can be stacked, which greatly reduces the overall area and facilitates transportation and storage.

[0045] The bottom support counterweight 4 is located at the bottom of the inner core 1, and its bottom fits the flow channel;

[0046] Specifically, the bottom support counterweight 4 includes two long strip-shaped balloons 41, and the balloons 41 are filled with a counterweight medium 42.

[0047] Specifically, the elongated balloons 41 are located on both sides of the bottom of the inner core 1. When the inner core 1 is closed, the two elongated balloons 41 will contact the riverbed of the channel. At the same time, the two elongated balloons 41 will be located on both sides of the inner core 1, forming an inner and outer water-blocking counterweight ring. The counterweight medium 42 is made of lead powder. Lead powder has good fluidity, which allows it to conform to the riverbed of the channel while providing counterweight, meeting the needs of different riverbed terrains. Its conforming shape will improve the contact with the riverbed, solving the problem of repeated pumping work caused by gap leakage due to uneven riverbed, reducing labor intensity and speeding up the maintenance process.

[0048] The length of the elongated balloon 41 is the same as the length of the inner core 1, and the elongated balloon 41 and the inner core 1 are bonded together by heat fusion curing.

[0049] When building a cofferdam:

[0050] Unfold all the side plates 21, first place one of the side plates 21 as a positioning point on the riverbed of the channel, and then enclose it according to the topography of the channel. When encountering corners or obstacles, it can be folded and turned along the folding seam 22.

[0051] During the cofferdam construction, ensuring that the two elongated spherical balloons 41 are located on the inner and outer sides of the inner core 1 can form an inner and outer water-blocking counterweight ring. This allows the counterweight to be applied while conforming to the riverbed of the flow channel, meeting the needs of different terrains of the flow channel. The conforming shape will improve the contact with the riverbed and solve the problem of repeated pumping work caused by gap leakage due to uneven riverbed.

[0052] The cylindrical block at one end of the inner core 1 is embedded in the C-shaped groove at the other end to complete the cofferdam operation. This structure can be laid out arbitrarily according to the topography of the channel to form a three-dimensional structure of different shapes. It has the advantages of flexible and convenient combination, which greatly reduces the difficulty of cofferdam construction and shortens the maintenance time.

[0053] When folded:

[0054] Pull the end of the inner core 1 with the cylindrical block out of the C-shaped groove at the other end, then take it out of the flow channel, wipe it dry, and start folding it sequentially along the fold seam 22 to complete the sequential stacking of the side panels 21, which greatly reduces the overall area and facilitates transportation and storage.

[0055] As an optional embodiment:

[0056] Referring to Figures 4-5, in one embodiment provided in this application, the side plate 21 includes an outer plate 211, an inner plate 212, an outer second plate 213, and an inner second plate 214.

[0057] Specifically, the outer plate 211 and the inner plate 212 are both 300mm long, the outer plate 213 is 190mm long, and the inner plate 214 is 200mm long.

[0058] The outer plate 211 and the inner plate 212 are symmetrically arranged on both sides of the inner core 1. The outer plate 213 is perpendicular to the outer plate 211 and is installed on the outer side of the inner core 1. The inner plate 214 is perpendicular to the inner plate 212 and is installed on the inner side of the inner core 1.

[0059] The outer panel 211 and the inner panel 212 have the same dimensions. The length of the inner panel 214 is greater than the length of the outer panel 213. There is an outward folding seam 215 between the outer panel 213 and the outer panel 211.

[0060] The outer second plate 213 and the inner second plate 214 can be folded outward along the outward folding seam 215, so that the overall height can be changed by 500mm / 300mm. This is mainly for flow channels with small inlet sizes such as inlets and tailwater, or even other scenarios that require small-scale water blocking repair, and achieves the advantage of flexible operation.

[0061] As an optional embodiment:

[0062] Referring to FIG6, in one embodiment provided in this application, the limiting portion 3 is disposed on the outside of the side plate 21 for fixing and connecting the side plates 21 on the same side.

[0063] The limiting part 3 includes a first strip plate 31 and a second strip plate 32, which are arranged in parallel.

[0064] A pin 33 is rotatably connected to the middle section of the first strip plate 31, and an L-shaped rod 34 is installed on the second strip plate 32. An opening 35 is formed between the L-shaped rod 34 and the second strip plate 32 for the pin 33 to be screwed in.

[0065] Specifically, strip plate 31 is installed on one side of the middle section and the top of outer plate 211, and strip plate 32 is installed on the other side of the middle section of outer plate 211 and the bottom of outer plate 213. When limiting, the pin 33 is screwed into the opening 35, which can fix two adjacent outer plates 211 and the outer plate 213 perpendicular to them, thereby realizing that several side plates 21 on the same side form a complete surface and improve the overall stability.

[0066] As an optional embodiment:

[0067] Referring to FIG7, in one embodiment provided in this application, the reinforcing part 5 is horizontally mounted on the three-dimensional cofferdam structure to ensure the stability of the overall structure;

[0068] The reinforcing part 5 includes a mounting plate 51, with hook plates 52 on both sides of the mounting plate 51, and the mounting plate 51 and the hook plates 52 are telescopically connected by a telescopic member 53.

[0069] Specifically, the expansion joint 53 is a threaded joint. When in use, the two hook plates 52 are placed above the three-dimensional cofferdam structure. By rotating the threaded joint, the distance between the mounting plate 51 and the hook plate 52 is shortened, thereby clamping the two sides of the top of the three-dimensional cofferdam structure, ensuring the stability of the overall structure and improving the impact resistance of external water pressure.

[0070] Starting from mounting plate 51, there are screw holes for installing general-purpose pumping equipment. Since this structure operates in water, it is necessary to pump out the water inside the cofferdam. Since some pumps cannot work in water, they need to be manually removed or cleared, which is not only time-consuming but also labor-intensive. This structure can both reinforce the structure and serve as a platform for equipment operation, achieving two goals at once and providing convenience for maintenance.

[0071] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. A portable, quick-assembly cofferdam device for drainage during channel maintenance, characterized in that: include, The inner core (1) is long and narrow. The plastic part (2) includes several side plates (21), which are equidistantly fitted to the inner and outer sides of the inner core (1). The gap between two adjacent side plates (21) forms a folding seam (22). The side plates (21) are bent along the folding seam (22) according to the topography of the flow channel to form a three-dimensional cofferdam structure. The limiting part (3) is set on the outside of the side plate (21) to fix and connect the side plates (21) on the same side. The bottom supporting counterweight part (4) is set at the bottom of the inner core (1) and its bottom is fitted to the flow channel. The reinforcing part (5) is horizontally mounted on the three-dimensional cofferdam structure to ensure the stability of the overall structure.

2. The portable quick-assembly cofferdam device for drainage during channel maintenance according to claim 1, characterized in that: Both the inner core (1) and the side plate (21) are provided with through holes for installing bolts to fix the side plate (21) onto the inner core (1).

3. The portable quick-assembly cofferdam device for drainage during channel maintenance according to claim 2, characterized in that: The side panel (21) includes an outer panel (211), an inner panel (212), an outer second panel (213), and an inner second panel (214).

4. The portable quick-assembly cofferdam device for drainage during channel maintenance according to claim 3, characterized in that: The outer plate (211) and the inner plate (212) are symmetrically arranged on both sides of the inner core (1). The outer second plate (213) is perpendicular to the outer plate (211) and is installed on the outside of the inner core (1). The inner second plate (214) is perpendicular to the inner plate (212) and is installed on the inside of the inner core (1).

5. The portable quick-assembly cofferdam device for drainage during channel maintenance according to claim 4, characterized in that: The outer plate (211) and the inner plate (212) have the same size. The length of the inner plate (214) is greater than the length of the outer plate (213). There is an outward folding seam (215) between the outer plate (213) and the outer plate (211).

6. The portable quick-assembly cofferdam device for drainage during channel maintenance according to claim 4, characterized in that: The limiting part (3) includes a first strip plate (31) and a second strip plate (32), which are arranged in parallel.

7. The portable quick-assembly cofferdam device for drainage during channel maintenance according to claim 6, characterized in that: A pin (33) is rotatably connected to the middle section of the first strip plate (31), and an L-shaped rod (34) is installed on the second strip plate (32). An opening (35) is formed between the L-shaped rod (34) and the second strip plate (32) for the pin (33) to screw into.

8. The portable quick-assembly cofferdam device for drainage during channel maintenance according to claim 1, characterized in that: The bottom support counterweight part (4) includes two long strip-shaped balloons (41), and the balloons (41) are filled with counterweight medium (42).

9. The portable quick-assembly cofferdam device for drainage during channel maintenance according to claim 8, characterized in that: The length of the elongated balloon (41) is the same as the length of the inner core (1), and the elongated balloon (41) and the inner core (1) are bonded together by heat fusion curing.

10. The portable quick-assembly cofferdam device for drainage during channel maintenance according to claim 1, characterized in that: The reinforcing part (5) includes a mounting plate (51), and hook plates (52) are provided on both sides of the mounting plate (51). The mounting plate (51) and the hook plates (52) are telescopically connected by a telescopic member (53).

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