Grouting plugging device

Abstract

The application provides a grouting plugging device, and relates to the technical field of grouting plugging. The grouting plugging device comprises a base plate provided with a communication part; a sealing mechanism elastically arranged on the first side of the base plate and surrounding the periphery of the communication part; a fastening mechanism configured to mount the base plate on a target object, so that the communication part is oppositely arranged with a leakage point of the target object, and the sealing mechanism is abutted between the base plate and the target object and forms a sealing area, so that the leakage point is isolated from the outside world; and a conveying mechanism arranged on the second side of the base plate away from the target object and in communication with the communication part, and configured to convey slurry to seal the leakage point by grouting, thereby improving the grouting plugging effect.

Description

Technical Field

[0001] At least one embodiment of this application relates to the field of grouting and sealing technology, and more particularly to a grouting and sealing device. Background Technology

[0002] Grouting has been widely used as an important means of repairing defects such as voids, settlement, and leakage in infrastructure such as tunnels, foundation pits, roads, and dams.

[0003] Most of the sealing devices use rigid pressure plates to directly press and seal, which is difficult to adapt to the unevenness of the surface to be sealed. The sealing reliability is insufficient, water is prone to leaking at the edges, and the grout is easily washed away by the water flow. This makes it impossible to achieve stable grouting and sealing, resulting in poor sealing effect. Utility Model Content

[0004] In view of this, this application provides a grouting and sealing device to at least partially solve the above-mentioned technical problems, prevent the grout from being dispersed by water flow, and improve the grouting and sealing effect.

[0005] An embodiment of this application provides a grouting and sealing device, comprising: a base plate having a connecting portion; a sealing mechanism elastically disposed on a first side of the base plate and surrounding the periphery of the connecting portion; a fastening mechanism configured to mount the base plate to a target object, such that the connecting portion and a leakage point of the target object are opposite each other, and the sealing mechanism abuts between the base plate and the target object to form a sealing area, thereby isolating the leakage point from the outside; and a conveying mechanism disposed on a second side of the base plate away from the target object and communicating with the connecting portion, configured to convey grout to grout and seal the leakage point.

[0006] According to an embodiment of this application, the sealing mechanism includes: a plurality of airbags, elastically disposed on a first side of the substrate and forming a first ring around the periphery of the communicating portion, each airbag having an inflation port communicating with the outside to inflate or deflate the airbag; and a plurality of dividing ribs, elastically disposed between two adjacent airbags respectively.

[0007] According to an embodiment of this application, the sealing mechanism further includes an expansion sealing portion disposed on a first side of the substrate, and forming a second ring portion around the periphery of the communicating portion and between the first ring portion; wherein the expansion sealing portion is configured to expand upon contact with liquid to fill the gap between the target and the substrate, thereby isolating the leakage point from the outside.

[0008] According to an embodiment of this application, the fastening mechanism includes: a fastening rod, the end of which is provided with an expansion end, the expansion end being mounted on the target object, and the substrate being slidably disposed on the fastening rod; a pressure plate, slidably disposed on the fastening rod and in contact with a second side of the substrate; and a locking assembly, disposed on the fastening rod and configured to drive the pressure plate and the substrate to slide toward the target object, such that the sealing mechanism abuts between the substrate and the target object.

[0009] According to an embodiment of this application, the locking assembly includes a first locking part that is threadedly engaged with the fastening rod and is configured to rotate about the axis of the fastening rod to drive the pressure plate and the base plate to slide toward the target object.

[0010] According to an embodiment of this application, the locking assembly includes a second locking portion that is threadedly engaged with the fastening rod to abut against the side of the first locking portion away from the pressure plate, and is configured to prevent the first locking portion from rotating relative to the fastening rod.

[0011] According to an embodiment of this application, the conveying mechanism includes: a main conveying pipe, which is connected to the connecting portion; a first conveying pipe, which is connected to the main conveying pipe and configured to convey slurry to seal the leakage point; and a grouting valve, which is configured to control the flow rate of the slurry conveyed by the first conveying pipe.

[0012] According to an embodiment of this application, the conveying mechanism further includes: a drain assembly connected to the connection position between the main conveying pipe and the first conveying pipe, configured to drain liquid from the sealed area; and a control valve configured to control the drain assembly or the first conveying pipe to connect with the main conveying pipe.

[0013] According to an embodiment of this application, the drainage assembly includes: a second delivery pipe connected to the main delivery pipe and configured to drain liquid from the sealed area; and a drainage valve configured to control the flow rate of liquid delivered by the second delivery pipe.

[0014] According to an embodiment of this application, the conveying mechanism further includes a one-way valve disposed in the first conveying pipe and configured to prevent the slurry in the first conveying pipe from flowing back.

[0015] According to the grouting and sealing device provided in this application, a base plate and a sealing mechanism are installed on the target object through a fastening mechanism to form an integrated external sealing device. The sealing mechanism can adapt to the unevenness of the target object's surface by its own elastic deformation, filling the gap between the contact surface of the target object and the base plate to form a sealing area. This ensures that the leakage point is located within the sealing area. Then, a conveying mechanism transports the grout to the connecting part to complete the grouting and sealing operation at the leakage point. Because the sealing mechanism can adapt to the unevenness of the target object's surface, leakage can be prevented, thus ensuring the sealing performance of the sealing area. The sealing mechanism can enclose the leakage point within the sealing area, isolating the leakage point from the outside world and preventing the grout from being washed away by water flow. This allows for stable sealing even under water leakage conditions, improving the grouting and sealing effect. Attached Figure Description

[0016] The above and other objects, features and advantages of this application will become clearer from the following description of embodiments with reference to the accompanying drawings, in which:

[0017] Figure 1 The illustration shows a schematic diagram of the grouting and sealing device according to an embodiment of the present application assembled on a target object.

[0018] Figure 2 A side view of a grouting and sealing device according to an embodiment of this application is shown schematically.

[0019] Figure 3 A schematic side view of a substrate and sealing mechanism according to an embodiment of this application is shown.

[0020] Figure 4 A side view of the fastening mechanism according to an embodiment of this application is shown schematically.

[0021] Figure Labels

[0022] 1. Base plate; 11. Connecting part; 111. Flange; 12. Mounting hole; 2. Sealing mechanism; 21. Airbag; 22. Dividing rib; 23. Inflation port; 24. Expansion water-stopping part; 25. Sealing gasket; 3. Fastening mechanism; 31. Fastening rod; 311. Expansion end; 32. Pressure plate; 33. Locking assembly; 331. First locking part; 332. Second locking part; 34. Handle part; 4. Conveying mechanism; 41. Main conveying pipe; 42. First conveying pipe; 43. Grouting valve; 44. Drainage assembly; 441. Second conveying pipe; 442. Drainage valve; 45. Control valve; 46. Check valve; 47. Pressure detection part; 5. Target object; 51. Leakage point. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0024] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0025] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0026] When using expressions such as "at least one of A, B, and C," the meaning should generally be interpreted according to the understanding of someone skilled in the art. For example, "a system having at least one of A, B, and C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C. Similarly, when using expressions such as "at least one of A, B, or C," the meaning should generally be interpreted according to the understanding of someone skilled in the art. For example, "a system having at least one of A, B, or C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C.

[0027] It should also be noted that the directional terms mentioned in the embodiments, such as "up," "down," "front," "back," "left," and "right," are only for reference to the directions in the accompanying drawings and are not intended to limit the scope of protection of this application. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or constructions will be omitted where they may cause confusion in understanding this application.

[0028] An embodiment of this application provides a grouting and sealing device. (Refer to...) Figure 1 and Figure 2 As shown, the grouting and sealing device includes a base plate 1, a sealing mechanism 2, a fastening mechanism 3, and a conveying mechanism 4. The base plate 1 has a connecting portion 11. The sealing mechanism 2 is elastically disposed on a first side of the base plate 1 and surrounds the periphery of the connecting portion 11. The fastening mechanism 3 is configured to mount the base plate 1 onto a target object 5, such that the connecting portion 11 is positioned opposite to the leakage point 51 of the target object 5, and the sealing mechanism 2 abuts against the base plate 1 and the target object 5 to form a sealing area, thus isolating the leakage point 51 from the outside. The conveying mechanism 4 is disposed on a second side of the base plate 1 away from the target object 5 and communicates with the connecting portion 11; it is configured to convey grout to seal the leakage point 51.

[0029] It should be noted that target object 5 represents the target construction components such as tunnels, foundation pits, roads, and dams where leakage has occurred.

[0030] In detail, substrate 1 is a plate-like structure with a certain structural rigidity. Substrate 1 can be rectangular or circular. The dimensions of substrate 1 are determined based on the influence range of leakage point 51, ensuring complete coverage of the leakage area. The first side of substrate 1 represents the side facing the target object 5, i.e. Figure 1 The left side of the substrate 1. The second side of the substrate 1 represents the side facing away from the target object 5, i.e. Figure 1 On the right side of the substrate 1. A through-hole 11 is provided in the central region of the substrate 1 as a channel for injecting sealing grout. The right end of the through-hole 11 is located on the second side of the substrate 1 and is used to connect to the grouting device. The left end of the through-hole 11 is used to grout and seal the leakage point 51.

[0031] The sealing mechanism 2 is made of an elastic material with elastic deformation capability. For example, the sealing mechanism 2 can be an airbag 21, a rubber pad, a silicone pad, etc., depending on the actual needs. The sealing mechanism 2 is disposed on the first side surface of the substrate 1 and is arranged in a continuous ring around the periphery of the connecting portion 11 to form a sealing boundary surrounding the leakage point 51.

[0032] The fastening mechanism 3 can be an anchoring and locking structure, which can mount the substrate 1 entirely onto the surface of the target object 5, such that the connecting part 11 is positioned opposite to the leakage point 51 of the target object 5, and the sealing mechanism 2 is pressed between the substrate 1 and the target object 5. In this way, the sealing mechanism 2 can fill the gap between the contact surface of the target object 5 and the substrate 1 by its own elastic deformation to form a sealing area, thereby enclosing the leakage point 51 within the sealing area and isolating the leakage point 51 from the outside.

[0033] The conveying mechanism 4 is installed on the second side of the base plate 1 via mounting components such as flange 111, bolts, and snap-fit ​​assemblies. The conveying mechanism 4 is connected to and interlocks with the connecting part 11, and can deliver sealing grout to the leakage point 51 in the sealing area to complete the grouting and sealing operation of the leakage point 51.

[0034] In actual operation, the base plate 1 and the sealing mechanism 2 are installed on the target object 5 by the fastening mechanism 3, forming an integrated external sealing device. In this way, the sealing mechanism 2 can adapt to the unevenness of the surface of the target object 5 by its own elastic deformation, fill the gap between the contact surface of the target object 5 and the base plate 1 to form a sealing area, so that the leakage point 51 is located in the sealing area. Then, the grout is transported to the connecting part 11 by the conveying mechanism 4 to complete the grouting and sealing operation of the leakage point 51.

[0035] In this implementation, since the sealing mechanism 2 can adapt to the uneven surface of the target object 5, leakage can be avoided, thereby ensuring the sealing performance of the sealing area. The sealing mechanism 2 can enclose the leakage point 51 within the sealing area, isolating the leakage point 51 from the outside world and preventing the grout from being washed away by water flow. It can achieve stable sealing under water leakage conditions and improve the grouting sealing effect.

[0036] In one exemplary embodiment, reference is made to Figure 1 , Figure 2 and Figure 3 As shown, the sealing mechanism 2 includes multiple airbags 21 and multiple dividing ribs 22. The multiple airbags 21 are elastically disposed on the first side of the substrate 1 and form a first ring around the periphery of the connecting portion 11. Each airbag 21 is provided with an inflation port 23 communicating with the outside, for inflating or deflating the airbag 21. The multiple dividing ribs 22 are elastically disposed between adjacent airbags 21.

[0037] In detail, multiple airbags 21 surround the periphery of the connecting portion 11 and are arranged sequentially in the circumferential direction, together forming a ring-shaped first ring portion. Each airbag 21 is an independent airtight chamber and is not interconnected with each other. The airbags 21 are made of reinforced rubber or high-molecular composite airtight materials, which have both good elastic deformation ability and tear resistance, and can adapt to repeated inflation and deflation and long-term compression conditions.

[0038] The dividing rib 22 is set at the junction of two adjacent airbags 21 and extends radially along the first ring. It serves as both a dividing structure between adjacent airbags 21 and an elastic support structure to enhance the overall deformation adaptability of the sealing mechanism 2.

[0039] Each airbag 21 is provided with an independent inflation port 23. The inflation port 23 can extend to the second side of the substrate 1, so as to allow gas to be injected into or discharged from the outside of the grouting and sealing device. The degree of inflation of the airbag 21 can be changed by adjusting the inflation pressure of a single airbag 21.

[0040] In this implementation, a multi-cavity independent annular airbag 21 structure is used as the first layer of seal. The inflation pressure of the corresponding airbag 21 can be adjusted according to the unevenness of different areas on the surface of the target object 5, so that the airbag 21 can better fit the uneven wall surface of the target object 5, eliminate local sealing gaps, significantly improve the sealing reliability under complex surface conditions, effectively isolate the leakage point 51 from the outside world, prevent the grout from being washed away by water flow, achieve stable sealing under water leakage conditions, and improve the grouting sealing effect.

[0041] In one exemplary embodiment, reference is made to Figure 1 and Figure 2As shown, a sealing gasket 25 is provided on the periphery of the airbag 21 on the side away from the substrate 1. The sealing gasket 25 can be made of rubber or silicone. The sealing gasket 25 can further fill the gap between the outer edge of the airbag 21 and the surface of the target object 5, helping to improve the overall sealing effect.

[0042] In one exemplary embodiment, reference is made to Figure 1 , Figure 2 and Figure 3 As shown, the sealing mechanism 2 also includes an expansion sealing portion 24, which is disposed on the first side of the substrate 1 and forms a second ring portion around the periphery of the connecting portion 11 and the first ring portion. The expansion sealing portion 24 is configured to expand upon contact with liquid to fill the gap between the target object 5 and the substrate 1, thereby isolating the leakage point 51 from the outside.

[0043] In detail, the expansion sealing portion 24 is a continuous annular second ring portion and is disposed on the first side of the substrate 1. The expansion sealing portion 24 is located between the first ring portion and the central connecting portion 11, and is coaxially arranged with the first ring portion formed by the plurality of airbags 21, together forming an inner and outer double sealing structure.

[0044] The expandable water-stopping part 24 can be made of a water-swellable material, such as water-swellable rubber. The expandable water-stopping part 24 can be a rectangular or circular ring structure. In its dry state, it has a small volume and does not affect the mounting and positioning of the grouting sealing device. When a small amount of leaking water breaks through the seal of the outer airbag 21 and enters the inner side of the first ring and contacts the expandable water-stopping part 24, the expandable water-stopping part 24 expands upon contact with water, tightly filling the tiny gap between the substrate 1 and the target object 5, forming a second sealing barrier.

[0045] In this embodiment, the annular flexible sealing airbag 21 and the water-swellable sealing part 24 are combined to form a dual sealing structure that combines an outer flexible fit seal and an inner water-swellable sealing. This allows for initial large-area sealing through the flexible deformation of the airbag 21, while the water-swellable sealing part 24 blocks tiny leakage channels, effectively improving the sealing effect under conditions of strong water seepage or uneven wall surfaces and reducing the risk of seal failure.

[0046] In one exemplary embodiment, reference is made to Figure 1 , Figure 2 and Figure 4As shown, the fastening mechanism 3 includes a fastening rod 31, a pressure plate 32, and a locking assembly 33. The end of the fastening rod 31 is provided with an expansion end 311, which is mounted on the target object 5. The base plate 1 is slidably disposed on the fastening rod 31. The pressure plate 32 is slidably disposed on the fastening rod 31 and contacts the second side of the base plate 1. The locking assembly 33 is disposed on the fastening rod 31 and is configured to drive the pressure plate 32 and the base plate 1 to slide towards the target object 5, so that the sealing mechanism 2 abuts against the base plate 1 and the target object 5.

[0047] In detail, the fastening rod 31 can be a long rod-shaped anchoring component. The expansion end 311 is located at the first end of the fastening rod 31. Figure 4 The left end of the fastening rod 31 can be inserted into the target object 5 through drilling, forming a firm connection with the target object 5 through expansion engagement or mechanical anchoring. The second end of the fastening rod 31 ( Figure 4 The right end of the fastening rod 31 extends outward through the mounting hole 12 on the substrate 1. The substrate 1 can slide relative to the fastening rod 31 along its axial direction.

[0048] It should be noted that the number of mounting holes 12 can be one, two, three, four, etc., depending on the shape of the substrate 1, and is not limited here. The number of fastening mechanisms 3 can be the same as the number of mounting holes 12. The mounting holes 12 can be located at the corners of the substrate 1. In this embodiment, the substrate 1 is a rectangular plate structure, and one mounting hole 12 is provided at each of the four corners of the substrate 1. The four fastening mechanisms 3 are respectively located at the positions corresponding to the four mounting holes 12. By symmetrically adjusting the clamping force of each fastening mechanism 3, the substrate 1 can be subjected to uniform force, avoiding sealing gaps caused by one side of the substrate 1 warping.

[0049] The pressure plate 32 is a rigid pressure plate structure, sleeved on the fastening rod 31 and attached to the second side surface of the substrate 1. The pressure plate 32 can be made of strip or circular steel plate, and its contact area with the substrate 1 is larger than the cross-sectional area of ​​the fastening rod 31, which can effectively disperse the clamping force and avoid local stress concentration and deformation of the substrate 1.

[0050] The locking component 33 is mounted on the second end of the fastening rod 31. It can move axially along the fastening rod 31 and apply a pushing force, pushing the pressure plate 32 towards the target object 5. This, in turn, causes the base plate 1 to press against the sealing mechanism 2, causing the sealing mechanism 2 to undergo elastic deformation and fit between the base plate 1 and the target object 5. The locking component 33 can be a nut structure that threads with the fastening rod 31, a pin and pin hole fitting assembly, a snap-fit ​​assembly, etc., and is not limited here. It can be determined according to actual needs.

[0051] In this implementation, the anchor rod combined with the clamping structure of the pressure plate 32 can stably install the grouting sealing device on the surface of the target object 5, preventing slippage and loosening during the sealing process and improving the stability and safety of the sealing operation. The locking component 33 can flexibly adjust the clamping degree of the sealing mechanism 2 to ensure that the sealing mechanism 2 has sufficient adhesion force, so that the sealing mechanism 2 can effectively seal between the base plate 1 and the target object 5, effectively isolating the leakage point 51 from the outside world, preventing the grout from being washed away by water flow, and achieving stable sealing under water leakage conditions, thus improving the grouting sealing effect.

[0052] In one exemplary embodiment, reference is made to Figure 1 , Figure 2 and Figure 4 As shown, the locking assembly 33 includes a first locking part 331, which is threadedly engaged with the fastening rod 31 and is configured to rotate about the axis of the fastening rod 31 to drive the pressure plate 32 and the base plate 1 to slide toward the target object 5.

[0053] Specifically, the second end of the fastening rod 31 ( Figure 4 The right end of the fastening rod 31 is provided with an external thread. The first locking part 331 is an internal thread nut structure, which forms a threaded transmission engagement with the external thread of the fastening rod 31.

[0054] When the first locking part 331 is turned, the first locking part 331 can move along the axial direction of the fastening rod 31 toward the target object 5, and push the pressure plate 32 to move synchronously, thereby transmitting the clamping force to the base plate 1 and the sealing mechanism 2. When the first locking part 331 is turned in the opposite direction, the clamping force can be released, which facilitates the disassembly and position adjustment of the grouting and sealing device.

[0055] In this implementation, the clamping force is linearly adjusted through the threaded transmission between the first locking part 331 and the fastening rod 31. The adjustment is highly accurate and easy to operate. Construction personnel can flexibly adjust the clamping degree according to the sealing effect on site. Moreover, the threaded structure has a certain self-locking ability, which can maintain the stability of the clamping state of the grouting sealing device.

[0056] In one exemplary embodiment, reference is made to Figure 1 , Figure 2 and Figure 4 As shown, the second end of the fastening rod 31 is provided with a handle 34 by means of bolts, screws or snap-fit ​​components, which makes it easy for the user to hold and improves the convenience of installing the fastening rod 31.

[0057] In some embodiments, the outer periphery of the first locking part 331 may be provided with a screw handle or a non-slip edge, which facilitates manual operation by construction personnel and allows for tightening adjustment without additional tools or the aid of a wrench, thereby improving the convenience of on-site operations.

[0058] In some embodiments, a gasket may be provided between the first locking part 331 and the pressure plate 32 to disperse the pressure of the nut end face on the pressure plate 32, while reducing the frictional resistance during the tightening process, making the adjustment operation smoother.

[0059] In one exemplary embodiment, reference is made to Figure 1 , Figure 2 and Figure 4 As shown, the locking assembly 33 includes a second locking part 332 that is threadedly engaged with the fastening rod 31 to abut against the side of the first locking part 331 away from the pressure plate 32, and is configured to prevent the first locking part 331 from rotating relative to the fastening rod 31.

[0060] In detail, the second locking part 332 is also an internally threaded nut structure, and is assembled on the side of the first locking part 331 away from the target object 5. Figure 4 (on the right side of the first locking part 331), and engages with the external thread of the second end of the fastening rod 31.

[0061] After the first locking part 331 is adjusted to the target pressing position, the second locking part 332 is screwed onto the first locking part 331 to make the second locking part 332 and the end face of the first locking part 331 closely abut against each other. The friction between the end faces restricts the circumferential rotation of the first locking part 331, thereby preventing the first locking part 331 from rotating and loosening due to vibration, water pressure reaction force, etc., and thus maintaining the stability of the pressing force.

[0062] In this implementation, a double-nut anti-loosening structure is adopted, which can lock the first locking part 331 after the clamping force is adjusted to the appropriate position, effectively preventing the clamping force from weakening during operation, ensuring that the sealing mechanism 2 is always in an effective clamping state, and improving the reliability of the device during long-term operation.

[0063] In one exemplary embodiment, reference is made to Figure 1 , Figure 2 and Figure 3 As shown, the conveying mechanism 4 includes a main conveying pipe 41, a first conveying pipe 42, and a grouting valve 43. The main conveying pipe 41 is connected to the connecting part 11. The first conveying pipe 42 is connected to the main conveying pipe 41 and is configured to convey grout to seal the leakage point 51. The grouting valve 43 is configured to control the flow rate of the grout conveyed by the first conveying pipe 42.

[0064] In detail, the main delivery pipe 41 is located on the second side of the substrate 1 and is connected to the connecting pipe via, but is not limited to, a flange 111, bolts, or a snap-fit ​​assembly. The internal flow channel of the main delivery pipe 41 is coaxially connected to the connecting part 11 to form the main flow channel leading to the leakage point 51.

[0065] The first delivery pipe 42 is connected to the end of the main delivery pipe 41 away from the connecting part 11, serving as a grouting pipeline connected to external grouting equipment. Grout flows into the main delivery pipe 41 through the first delivery pipe 42, and then is injected into the leakage area through the connecting part 11.

[0066] Grouting valve 43 is installed on the pipeline of the first delivery pipe 42. The on / off state of the grouting pipeline and the flow rate of grout can be controlled by the opening and closing of the valve core and the opening degree adjustment.

[0067] In this implementation, the grouting process can be precisely controlled through independent grouting pipelines and 45 control valves. The grouting rate and volume can be flexibly adjusted according to the on-site leakage situation to ensure the controllability and sealing quality of the grouting and sealing operation.

[0068] In one exemplary embodiment, reference is made to Figure 1 , Figure 2 and Figure 3 As shown, the conveying mechanism 4 also includes a drain assembly 44 and a control valve 45. The drain assembly 44 is connected to the connection between the main conveying pipe 41 and the first conveying pipe 42, and is configured to drain liquid from the sealed area. The control valve 45 is configured to control the connection between the drain assembly 44 or the first conveying pipe 42 and the main conveying pipe 41.

[0069] In detail, the drainage assembly 44 and the first delivery pipe 42 can be connected together by a three-way pipe to the intersection of the end of the main delivery pipe 41 away from the connecting part 11 (the right end of the main delivery pipe 41) to form a three-way flow path structure.

[0070] The control valve 45 is located at the three-way pipe at the intersection of the flow paths. The control valve 45 adopts a three-way ball valve structure, and the flow path can be switched by rotating the valve core. In this way, the control valve 45 can switch the connection state of the internal flow channels, so that the drainage assembly 44 is connected to the main delivery pipe 41, or the first delivery pipe 42 is connected to the main delivery pipe 41.

[0071] In the initial stage of the operation, control valve 45 connects the drainage assembly 44 to the main delivery pipe 41 to form a drainage path. Leaking water within the sealing area is discharged systematically through the main delivery pipe 41 and the drainage assembly 44, reducing the water pressure at the leakage point 51. After the drainage stabilizes, control valve 45 connects the first delivery pipe 42 to the main delivery pipe 41 to form a grouting path, allowing the sealing grout to be injected into the leakage point 51 through the first delivery pipe 42 and the main delivery pipe 41 to complete the sealing.

[0072] In this implementation, the control valve 45 enables rapid switching between two working conditions: drainage and grouting. The process of first reducing pressure and then grouting can be completed without disassembling the pipeline, which can effectively reduce the risk of the grout being washed away under high water pressure and improve the molding quality and sealing effect of grouting.

[0073] In one exemplary embodiment, reference is made to Figure 1 and Figure 2 As shown, the drainage assembly 44 includes a second delivery pipe 441 and a drainage valve 442. The second delivery pipe 441 is connected to the main delivery pipe 41 and is configured to drain liquid from the sealed area. The drainage valve 442 is configured to control the flow rate of liquid delivered by the second delivery pipe 441.

[0074] In detail, the second conveying pipe 441 serves as a drainage pipe, with one end connected to the flow path intersection of the main conveying pipe 41, and the other end connected to a drainage container or pumping equipment. In this way, leaked water in the sealed area can be discharged outward through the second conveying pipe 441.

[0075] The drain valve 442 can be installed in the pipeline of the second delivery pipe 441 to control the opening and closing of the drain pipeline and adjust the drain flow rate, thereby controlling the pressure drop rate in the sealed area.

[0076] In this implementation, the drainage process is controlled by an independent drain valve 442. The drainage speed can be flexibly adjusted according to the pressure and flow rate of the leaking water to ensure a steady drop in water pressure, avoid excessive pressure release that could cause disturbance to the surrounding strata, and improve the safety and controllability of the operation.

[0077] In some embodiments, the outer end of the second delivery pipe 441 is provided with a hose interface, which can be connected to the pumping pipeline and the pumping equipment to achieve auxiliary forced drainage under high flow seepage conditions and accelerate the pressure reduction process.

[0078] In one exemplary embodiment, reference is made to Figure 1 and Figure 2 As shown, the conveying mechanism 4 also includes a one-way valve 46. The one-way valve 46 is disposed in the first conveying pipe 42 and is configured to prevent the slurry in the first conveying pipe 42 from flowing back.

[0079] In detail, the one-way valve 46 is installed inside the flow channel of the first delivery pipe 42. The one-way valve 46 is directed from the delivery side to the leakage point 51, allowing the slurry to flow only towards the target object 5, and automatically shuts off in the opposite direction.

[0080] When grouting operations stop or pipeline pressure fluctuates, the one-way valve 46 can automatically close to prevent high-pressure water or uncured grout at the leakage point 51 from flowing back along the first delivery pipe 42, thus maintaining grouting pressure and sealing effect.

[0081] In this implementation, by setting a one-way check structure in the main channel, backflow of grout can be effectively prevented, ensuring the fullness of grout filling and improving the stability and sealing quality of the grouting operation.

[0082] In one exemplary embodiment, reference is made to Figure 1 and Figure 2As shown, the end of the main delivery pipe 41 furthest from the connecting part 11 ( Figure 2 A pressure detection unit 47 may be installed at the right end of the main delivery pipe 41. It is understood that the pressure detection unit 47 may also be located at the intersection of the main delivery pipe 41 and the first delivery pipe 42 and the second delivery pipe 441. The pressure detection unit 47 may be a pressure gauge, used to detect the pressure of the liquid discharged from the main delivery pipe 41 or the pressure of the grout in the pipeline during grouting, providing a reference for construction operations.

[0083] In actual operation, firstly, the grouting and sealing device is placed against the surface of the target object 5, so that the connecting part 11 is aligned with the center of the leakage point 51 of the target object 5, and the base plate 1 covers the leakage point 51 and the surrounding leakage-affected area.

[0084] Each pressure plate 32 is fitted onto each fastening rod 31. Each fastening rod 31 passes through a mounting hole 12 in the corner area of ​​the substrate 1, so that the pressure plate 32 is located on the second side of the substrate 1. Using the mounting hole 12 in the corner area of ​​the substrate 1 as a positioning reference, the anchor hole position is marked at the corresponding position of the target object 5. Then, anchor holes are drilled on the target object 5, and the expansion end 311 of the first end of the anchoring fastening rod 31 is inserted into the anchor hole for expansion anchoring or mechanical anchoring. Then, the first locking part 331 and the second locking part 332 are tightened in sequence. The pressure force of the pressure plate 32 on the substrate 1 is adjusted by the first locking part 331, and the second locking part 332 is used to prevent loosening. For the fastening mechanism 3 at the four corners of the substrate 1, it is preferable to adjust it by symmetrical, phased, and uniform tightening.

[0085] Next, air is injected into each airbag 21 through each inflation port 23. The air pressure of each airbag 21 is adjusted according to the unevenness of the surface of the target object 5, so that the annular flexible sealing airbag 21 fits tightly against the surface of the target object 5, thereby forming a circumferential flexible seal around the leakage point 51. The water-swellable sealing ring is located inside the annular flexible sealing airbag 21 and is in a ready-to-use state.

[0086] Operate control valve 45 to connect the second delivery pipe 441 to the main delivery pipe 41. Open drain valve 442 to discharge leaked water through the main delivery pipe 41 and the second delivery pipe 441, reducing water pressure in the area near the leak point 51. If necessary, connect a pumping device to the end of the second delivery pipe 441 to assist in drainage. At this stage, due to the reduced water pressure, the risk of grout being washed away during subsequent grouting is significantly reduced.

[0087] After the drainage stabilizes, operate control valve 45 to close the second delivery pipe 441, connecting the first delivery pipe 42 to the main delivery pipe 41. Open grouting valve 43, and inject sealing grout into the first delivery pipe 42 and main delivery pipe 41 by connecting grouting equipment to the end of the first delivery pipe 42. The grout flows through the main delivery pipe 41 and connecting part 11 into the leakage channel of leakage point 51, forming a grouting seal in the leakage channel. Check valve 46 prevents grout backflow. During grouting, pressure detection unit 47 monitors the grouting pressure and controls the grouting rate and volume.

[0088] After grouting and sealing are completed, the grouting and sealing device can be retained on the surface of the target object 5 as part of the permanent water-stopping structure, or it can be removed as needed for the project. During removal, first deflate the airbag 21 through the air inlet 23, then loosen the second locking part 332 and the first locking part 331 in sequence, and remove the pressure plate 32; then, depending on the project needs, remove the fastening rod 31 or retain the expansion end 311 of the fastening rod 31, thereby removing the grouting and sealing device except for the expansion end 311.

[0089] According to the grouting and sealing device provided in this embodiment, the base plate 1 and the sealing mechanism 2 are installed on the target object 5 by the fastening mechanism 3 to form an integrated external sealing device. The sealing mechanism 2 can adapt to the unevenness of the surface of the target object 5 by its own elastic deformation, filling the gap between the contact surface of the target object 5 and the base plate 1 to form a sealing area, so that the leakage point 51 is located in the sealing area. Then, the grout is transported to the connecting part 11 by the conveying mechanism 4 to complete the grouting and sealing operation of the leakage point 51. Since the sealing mechanism 2 can adapt to the unevenness of the surface of the target object 5, leakage can be avoided, thereby ensuring the sealing performance of the sealing area. The sealing mechanism 2 can enclose the leakage point 51 in the sealing area, so that the leakage point 51 is isolated from the outside world, preventing the grout from being washed away by water flow, achieving stable sealing under water leakage conditions, and improving the grouting and sealing effect.

[0090] The embodiments of this application have been described above. However, these embodiments are merely illustrative and not intended to limit the scope of this application. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. The scope of this application is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of this application, and all such substitutions and modifications should fall within the scope of this application.

Claims

1. A grouting and sealing device, characterized in that, include: The substrate (1) is provided with a connecting portion (11); Sealing mechanism (2), comprising: Multiple airbags (21) are elastically disposed on the first side of the substrate (1) and form a first ring around the periphery of the connecting portion (11). Each airbag (21) is provided with an inflation port (23) communicating with the outside, so as to inflate the airbag (21) or deflate the airbag (21). Multiple dividing ribs (22) are elastically disposed between two adjacent airbags (21); The fastening mechanism (3) is configured to mount the substrate (1) onto the target object (5) such that the connecting portion (11) is positioned opposite to the leakage point (51) of the target object (5), and the sealing mechanism (2) abuts between the substrate (1) and the target object (5) to form a sealing area, thereby isolating the leakage point (51) from the outside. The conveying mechanism (4) is disposed on the second side of the substrate (1) away from the target object (5) and is connected to the connecting part (11). It is configured to convey slurry to seal the leakage point (51).

2. The grouting and sealing device according to claim 1, characterized in that, The sealing mechanism (2) further includes an expansion water-stopping part (24), which is disposed on the first side of the substrate (1) and forms a second ring around the periphery of the connecting part (11) and between the first ring part; The expansion sealing part (24) is configured to expand upon contact with liquid to fill the gap between the target (5) and the substrate (1), thereby isolating the leakage point (51) from the outside.

3. The grouting and sealing device according to claim 1, characterized in that, The fastening mechanism (3) includes: A fastening rod (31) is provided with an expansion end (311) at its end. The expansion end (311) is installed on the target object (5). The base plate (1) is slidably disposed on the fastening rod (31). A pressure plate (32) is slidably disposed on the fastening rod (31) and contacts the second side of the base plate (1); A locking component (33), disposed on the fastening rod (31), is configured to drive the pressure plate (32) and the base plate (1) to slide toward the target object (5), such that the sealing mechanism (2) abuts between the base plate (1) and the target object (5).

4. The grouting and sealing device according to claim 3, characterized in that, The locking assembly (33) includes a first locking part (331) that is threaded into the fastening rod (31) and is configured to rotate about the axis of the fastening rod (31) to drive the pressure plate (32) and the base plate (1) to slide toward the target object (5).

5. The grouting and sealing device according to claim 4, characterized in that, The locking assembly (33) includes a second locking part (332) that is threaded into the fastening rod (31) to abut against the side of the first locking part (331) away from the pressure plate (32) and is configured to prevent the first locking part (331) from rotating relative to the fastening rod (31).

6. The grouting and sealing device according to claim 1, characterized in that, The conveying mechanism (4) includes: The main delivery pipe (41) is connected to the connecting part (11); The first delivery pipe (42), connected to the main delivery pipe (41), is configured to deliver slurry to seal the leak point (51); The grouting valve (43) is configured to control the flow rate of grout delivered by the first delivery pipe (42).

7. The grouting and sealing device according to claim 6, characterized in that, The conveying mechanism (4) also includes: The drain assembly (44) is connected to the connection position between the main delivery pipe (41) and the first delivery pipe (42) and is configured to drain the liquid in the sealed area; A control valve (45) is configured to control the connection between the drain assembly (44) or the first delivery pipe (42) and the main delivery pipe (41).

8. The grouting and sealing device according to claim 7, characterized in that, The drainage assembly (44) includes: The second delivery pipe (441), connected to the main delivery pipe (41), is configured to discharge liquid from the sealed area; A drain valve (442) is configured to control the flow rate of liquid delivered by the second delivery pipe (441).

9. The grouting and sealing device according to claim 6, characterized in that, The conveying mechanism (4) further includes a one-way valve (46) disposed in the first conveying pipe (42) and configured to prevent the slurry in the first conveying pipe (42) from flowing back.

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