Wall post-opening through-wall pipe waterproof device and post-grouting waterproof construction method

Abstract

The invention relates to a wall post-opening through-wall pipe waterproof device and a post-grouting waterproof construction method.The wall post-opening through-wall pipe waterproof device comprises two sealing assemblies, each sealing assembly comprises a sealing disc and a rubber mat which are stacked together, the rubber mats are located on the inner sides of the sealing discs, the sealing disc of one sealing assembly is provided with a first grouting hole and a first grout overflow hole, and the sealing disc of the other sealing assembly is provided with a second grouting hole and a second grout overflow hole; a second grouting hole and a second grout overflow hole are formed in the rubber mat, the first grouting hole corresponds to the second grouting hole and corresponds to a gap between the through-wall pipe and the inner wall of the rear opening hole, and the first grout overflow hole corresponds to the second grout overflow hole and corresponds to a gap between the through-wall pipe and the inner wall of the rear opening hole. The waterproof device is installed at the two ends of the hole, the single-component polyurethane waterproof coating is injected through the grouting holes, a closed waterproof film is formed with the through-wall pipe and the hole wall through the binding force and permeability of the coating, and an external water source is isolated; and meanwhile, the flexible characteristic of the cured single-component polyurethane waterproof coating can effectively prevent hole leakage caused by deformation generated by vibration of the pipeline.

Description

Technical Field

[0001] The invention relates to a waterproof construction technology, in particular to an external wall rear hole through-wall pipe waterproof device and a rear grouting waterproof construction method. Background Art

[0002] During the concrete construction of underground structures, due to the negligence of construction workers, pipes are added to the design after the completed wall or left behind. It is necessary to open holes in the completed concrete structure. For the holes opened later, the pipes penetrating the wall need to be waterproofed. Rigid waterproofing measures are usually adopted, such as filling with waterproof concrete. However, after long-term use, surface shrinkage and cracks are prone to occur, which causes leakage. Summary of the invention

[0003] The purpose of the present invention is to provide a wall post-hole through-wall pipe waterproofing device and a post-grouting waterproofing construction method to solve the problem that the existing through-wall pipe adopts rigid waterproofing measures which easily leads to cracks and leakage.

[0004] The present invention is achieved as follows: a waterproof device for a wall rear-opening through-wall pipe comprises two sealing components, wherein the sealing components comprise a sealing disk and a rubber pad stacked together, the rubber pad being located on the inner side of the sealing disk, a first center hole being opened at the center of the sealing disk, a second center hole being opened at the center of the rubber pad, a first connecting hole being opened on the sealing disk, a second connecting hole being opened on the rubber pad, the first connecting hole corresponding to the second connecting hole; a first grouting hole and a first overflow grouting hole being opened on the sealing disk of one of the sealing components, a second grouting hole and a second overflow grouting hole being opened on the rubber pad, the first grouting hole corresponding to the second grouting hole and corresponding to the gap between the through-wall pipe and the inner wall of the rear-opening hole, the first overflow grouting hole corresponding to the second overflow grouting hole and corresponding to the gap between the through-wall pipe and the inner wall of the rear-opening hole.

[0005] Furthermore, the diameter of the second center hole is smaller than the diameter of the first center hole, and the inner ring portion of the rubber pad protrudes inward to form a rubber ring.

[0006] Furthermore, a first hollow column and a second hollow column are respectively provided at the first grouting hole and the first overflow hole, the first hollow column passes through the second grouting hole and extends toward the inner side of the sealing disk, the second hollow column passes through the second overflow hole and extends toward the inner side of the sealing disk, and a plurality of through holes are respectively opened on the first hollow column and the second hollow column.

[0007] Furthermore, there are a plurality of the first connection holes and a plurality of the second connection holes, and the holes are evenly distributed along the circumferential direction.

[0008] Furthermore, the first grouting hole and the second grouting hole are located below the first center hole and the second center hole, and the first overflow hole and the second overflow hole are located above the first center hole and the second center hole.

[0009] Furthermore, a connecting piece is inserted into the first connecting hole and the second connecting hole, and the connecting piece is an expansion screw or an anchor.

[0010] The invention also discloses a waterproof construction method of rear-drilling a hole in a wall body and inserting a wall pipe therethrough and then grouting, which comprises the following steps.

[0011] a. Use punching equipment to drill holes on the wall according to the locations where wall-penetrating pipes are to be added.

[0012] b. Process the rear opening holes.

[0013] c. A sealing assembly is respectively installed at the hole openings at both ends of the rear opening, the sealing assembly includes a sealing disk and a rubber pad stacked together, the rubber pad is located on the inner side of the sealing disk, a first center hole is opened in the center of the sealing disk, a second center hole is opened in the center of the rubber pad, a first connecting hole is opened on the sealing disk, a second connecting hole is opened on the rubber pad, and the first connecting hole corresponds to the second connecting hole; a first grouting hole and a first overflow hole are opened on the sealing disk of one of the sealing assemblies, and a second grouting hole and a second overflow hole are opened on the rubber pad, the first grouting hole corresponds to the second grouting hole and corresponds to the gap between the wall-penetrating pipe and the inner wall of the rear opening, and the first overflow hole corresponds to the second overflow hole and corresponds to the gap between the wall-penetrating pipe and the inner wall of the rear opening.

[0014] d. Install the through-wall pipe, which passes through the first center hole and the second center hole of the two sealing components and through the rear opening hole to fix the two sealing components.

[0015] e. Inject polyurethane waterproof coating from the grouting hole until the slurry flows out from the overflow port to fill the gap between the wall-penetrating pipe and the inner wall of the rear hole tightly.

[0016] f. Close the grouting holes and overflow holes.

[0017] Furthermore, in step b, after the hole is opened, the hole wall within 3 cm on both sides of the hole opening is roughened, and then the hole wall is cleaned.

[0018] Furthermore, in step c, a sealing assembly with a grouting hole and an overflow hole is arranged inside the wall, and the grouting hole is located at the lower side of the wall-penetrating pipe.

[0019] Furthermore, in step d, a connecting piece is inserted into the first connecting hole and the second connecting hole, and the two sealing components are fixed to the wall surface through the connecting piece.

[0020] The present invention is easy to use and has a simple structure. Sealing components are installed inside and outside the wall, and grouting holes are left on one side of the sealing component. After installation, a single-component polyurethane waterproof coating is injected to form a closed waterproof film with the wall-penetrating pipe and the hole wall through the adhesion and permeability of the coating to isolate external water sources. At the same time, the flexible characteristics of the single-component polyurethane waterproof coating after curing can effectively prevent hole leakage caused by deformation caused by pipeline vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional view of the present invention.

[0022] Figure 2 It is a plan view of the present invention.

[0023] Figure 3 It is a plan view of the sealing disk of the present invention.

[0024] Figure 4 It is a plan view of the rubber pad of the present invention.

[0025] In the figure: 1. wall; 2. rear opening hole; 3. sealing assembly; 4. grouting material; 5. connecting piece; 6. wall pipe; 3-1. sealing plate; 3-2. rubber pad; 3-3. first grouting hole; 3-4. first overflow hole; 3-5. second grouting hole; 3-6. second overflow hole; 3-7. first connecting hole; 3-8. second connecting hole; 3-9. rubber ring; 3-10. first center hole; 3-11. second center hole; 3-12. first hollow column; 3-13. second hollow column. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] Example 1 like Figure 1 , Figure 2as well as Figure 3 As shown, this embodiment is a wall rear hole through-wall pipe waterproofing device, which includes two sealing components 3. The two sealing components 3 are respectively arranged at the hole openings at both ends of the rear hole 2 when in use.

[0029] The sealing assembly 3 specifically includes a sealing disc 3-1 and a rubber pad 3-2 stacked together, the rubber pad 3-2 is located inside the sealing disc 3-1, and the sealing disc 3-1 is generally made of metal. A first center hole 3-10 is opened in the center of the sealing disc 3-1, and a second center hole 3-11 is opened in the center of the rubber pad 3-2. When installed, the first center hole 3-10 and the second center hole 3-11 are arranged concentrically.

[0030] The diameter of the second center hole 3-11 is smaller than the diameter of the first center hole 3-10, and the inner ring part of the rubber pad 3-2 protrudes inward to form a rubber ring 3-9. When the through-wall pipe 6 is connected, the through-wall pipe 6 passes through the first center hole 3-10 and the second center hole 3-11. The diameter of the through-wall pipe 6 is smaller than the diameter of the first center hole 3-10 and slightly larger than the diameter of the second center hole 3-11, so that the through-wall pipe 6 can smoothly pass through the sealing disk 3-1. At the same time, the rubber ring 3-9 is squeezed by the outer wall of the through-wall pipe 6 to ensure the sealing between the outer wall of the through-wall pipe 6 and the rubber pad 3-2.

[0031] To facilitate the fixation of the sealing assembly 3, a plurality of first connecting holes 3-7 are provided on the sealing disk 3-1, and a plurality of second connecting holes 3-8 are provided on the rubber pad 3-2. The positions of the first connecting holes 3-7 and the second connecting holes 3-8 correspond to each other. There are at least two first connecting holes 3-7 and at least two second connecting holes 3-8 respectively. In the present embodiment, there are four first connecting holes 3-7 and four second connecting holes 3-8 respectively, and the first connecting holes 3-7 and the second connecting holes 3-8 are evenly distributed along the circumferential direction.

[0032] During installation, a connector 5 is inserted into the first connecting hole 3-7 and the second connecting hole 3-8, and the sealing disk 3-1 and the rubber pad 3-2 are fixed to the surface of the wall 1 and the rubber pad 3-2 is pressed by the connector 5, wherein the connector 5 is an expansion screw or an anchor.

[0033] In addition to sealing the hole through the sealing component 3, it is mainly necessary to seal by injecting the grouting material 4 into the gap. In order to facilitate the injection of the grouting material 4, a first grouting hole 3-3 and a first overflow hole 3-4 are opened on the sealing disk 3-1 of one of the sealing components 3, and a second grouting hole 3-5 and a second overflow hole 3-6 are opened on the rubber pad 3-2 of the sealing component 3. The first grouting hole 3-3 corresponds to the second grouting hole 3-5 and corresponds to the gap between the through-wall pipe 6 and the inner wall of the rear opening hole 2. The first overflow hole 3-4 corresponds to the second overflow hole 3-6 and corresponds to the gap between the through-wall pipe 6 and the inner wall of the rear opening hole 2. The grouting material 4 is injected into the gap between the through-wall pipe 6 and the inner wall of the rear opening hole 2 through the first grouting hole 3-3 and the second grouting hole 3-5, and the grouting material 4 overflows from the overflow hole after being filled.

[0034] Among them, the first hollow column 3-12 and the second hollow column 3-13 are respectively provided at the first grouting hole 3-3 and the first overflow hole 3-4, the first hollow column 3-12 passes through the second grouting hole 3-5 and extends to the inner side of the sealing disk 3-1, and the second hollow column 3-13 passes through the second overflow hole 3-6 and extends to the inner side of the sealing disk 3-1, and a plurality of through holes are respectively opened on the first hollow column 3-12 and the second hollow column 3-13.

[0035] On the one hand, the first hollow column 3-12 is used to insert the grouting pipe and guide the grouting material 4 into the gap between the wall-penetrating pipe 6 and the inner wall of the rear opening hole 2. On the other hand, the hollow cavity of the first hollow column 3-12 is easy to seal, and a cylinder can be inserted to seal the grouting hole 4.

[0036] The through hole on the second hollow column 3-13 has a smaller diameter, which can play a certain blocking role on the grouting material 4, so that the grouting material 4 fills the gap between the wall-penetrating pipe 6 and the inner wall of the rear opening 2 and then overflows through the overflow hole. The hollow cavity of the second hollow column 3-13 is also easy to seal, and a cylinder can be inserted to seal the overflow hole.

[0037] The first grouting hole 3-3 and the second grouting hole 3-5 are located below the first center hole 3-10 and the second center hole 3-11, and the first overflow hole 3-4 and the second overflow hole 3-6 are located above the first center hole 3-10 and the second center hole 3-11. In this way, the grouting material 4 can be gradually filled from the lower part to the upper part of the gap between the through-wall pipe 6 and the inner wall of the rear opening hole 2, so as to ensure the density of the gap between the through-wall pipe 6 and the inner wall of the rear opening hole 2.

[0038] Example 2 The present embodiment is a waterproof construction method for drilling a hole in a wall, inserting a wall pipe and then injecting grout, which includes the following steps.

[0039] a. Use a punching device to drill a hole 2 on the wall 1 according to the location of the additional wall-penetrating pipe 6.

[0040] b. Process the rear opening hole 2.

[0041] c. A sealing assembly 3 is installed at the openings at both ends of the rear opening 2. The sealing assembly 3 includes a sealing disk 3-1 and a rubber pad 3-2 stacked together. The rubber pad 3-2 is located on the inner side of the sealing disk 3-1. A first center hole 3-10 is opened in the center of the sealing disk 3-1, and a second center hole 3-11 is opened in the center of the rubber pad 3-2. A first connecting hole 3-7 is opened on the sealing disk 3-1, and a second connecting hole 3-8 is opened on the rubber pad 3-2. The first connecting hole 3-7 Corresponding to the second connecting hole 3-8; a first grouting hole 3-3 and a first overflow hole 3-4 are provided on the sealing disk 3-1 of one of the sealing assemblies 3, and a second grouting hole 3-5 and a second overflow hole 3-6 are provided on the rubber pad 3-2, the first grouting hole 3-3 corresponds to the second grouting hole 3-5 and corresponds to the gap between the wall-penetrating pipe 6 and the inner wall of the rear hole 2, the first overflow hole 3-4 corresponds to the second overflow hole 3-6 and corresponds to the gap between the wall-penetrating pipe 6 and the inner wall of the rear hole 2.

[0042] d. Install the wall-penetrating tube 6 , which passes through the first center hole 3 - 10 and the second center hole 3 - 11 of the two sealing components 3 and through the rear opening hole 2 to fix the two sealing components 3 .

[0043] e. Inject polyurethane waterproof coating from the grouting hole 4 until the slurry flows out from the overflow port to fill the gap between the wall-penetrating pipe 6 and the inner wall of the rear opening 2 tightly.

[0044] Considering that the pipeline vibrates during use, the polyurethane waterproof coating is flexible after curing, has high tensile strength and large elongation, which can effectively reduce the risk of leakage.

[0045] f. Close the grouting hole 4 and the overflow hole.

[0046] Among them, in step b, after the hole is opened, the hole wall within 3 cm on both sides of the hole opening is roughened to increase the contact area, and then the hole wall is cleaned.

[0047] In step c, a sealing assembly 3 with a grouting hole 4 and an overflow hole is arranged on the inner side of the wall 1 , and the grouting hole 4 is located at the lower side of the wall-penetrating pipe 6 .

[0048] In step d, the connector 5 is inserted into the first connecting hole 3 - 7 and the second connecting hole 3 - 8 , and the two sealing assemblies 3 are fixed to the surface of the wall 1 through the connector 5 .

[0049] The present invention is easy to use and has a simple structure. A sealing component 3 is installed inside and outside the wall 1, and a grouting hole 4 is left on one side of the sealing component 3. After the installation is completed, a single-component polyurethane waterproof coating is injected to form a closed waterproof film with the wall-penetrating pipe 6 and the hole wall through the adhesion and permeability of the coating to isolate the external water source. At the same time, the flexible characteristics of the single-component polyurethane waterproof coating after curing can effectively prevent hole leakage caused by deformation caused by pipeline vibration.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waterproof device for a wall with a hole through the wall, characterized in that: The invention comprises two sealing components, wherein the sealing components comprise a sealing disk and a rubber pad stacked together, the rubber pad being located on the inner side of the sealing disk, a first center hole being opened in the center of the sealing disk, a second center hole being opened in the center of the rubber pad, a first connecting hole being opened on the sealing disk, a second connecting hole being opened on the rubber pad, and the first connecting hole corresponding to the second connecting hole; a first grouting hole and a first overflow grouting hole being opened on the sealing disk of one of the sealing components, and a second grouting hole and a second overflow grouting hole being opened on the rubber pad, the first grouting hole corresponding to the second grouting hole and corresponding to the gap between the wall-penetrating pipe and the inner wall of the rear-opening hole, the first overflow grouting hole corresponding to the second overflow grouting hole and corresponding to the gap between the wall-penetrating pipe and the inner wall of the rear-opening hole.

2. The wall rear hole through-wall pipe waterproofing device according to claim 1, characterized in that: The diameter of the second center hole is smaller than the diameter of the first center hole, and the inner ring portion of the rubber pad protrudes inward to form a rubber ring.

3. The wall rear hole through-wall pipe waterproofing device according to claim 1, characterized in that: A first hollow column and a second hollow column are respectively provided at the first grouting hole and the first overflow hole. The first hollow column extends toward the inner side of the sealing disk through the second grouting hole, and the second hollow column extends toward the inner side of the sealing disk through the second overflow hole. A plurality of through holes are respectively provided on the first hollow column and the second hollow column.

4. The wall rear hole through-wall pipe waterproofing device according to claim 1, characterized in that: There are a plurality of the first connection holes and a plurality of the second connection holes, respectively, and the holes are evenly distributed along the circumferential direction.

5. The wall rear hole through-wall pipe waterproofing device according to claim 1, characterized in that: The first grouting hole and the second grouting hole are located below the first center hole and the second center hole, and the first overflow hole and the second overflow hole are located above the first center hole and the second center hole.

6. The wall rear hole through-wall pipe waterproofing device according to claim 1, characterized in that: A connecting piece is inserted into the first connecting hole and the second connecting hole, and the connecting piece is an expansion screw or an anchor.

7. A waterproof construction method for wall body with hole opening and wall pipe insertion, characterized in that: The following steps are involved: a. Use punching equipment to drill holes on the wall according to the location of the wall-penetrating pipe; b. Process the rear opening holes; c. A sealing assembly is installed at the openings at both ends of the rear opening respectively, the sealing assembly includes a sealing disk and a rubber pad stacked together, the rubber pad is located on the inner side of the sealing disk, a first center hole is opened in the center of the sealing disk, a second center hole is opened in the center of the rubber pad, a first connecting hole is opened on the sealing disk, a second connecting hole is opened on the rubber pad, and the first connecting hole corresponds to the second connecting hole; a first grouting hole and a first overflow hole are opened on the sealing disk of one of the sealing assemblies, and a second grouting hole and a second overflow hole are opened on the rubber pad, the first grouting hole corresponds to the second grouting hole and corresponds to the gap between the wall-penetrating pipe and the inner wall of the rear opening, and the first overflow hole corresponds to the second overflow hole and corresponds to the gap between the wall-penetrating pipe and the inner wall of the rear opening; d. Install the through-wall pipe, which passes through the first center hole and the second center hole of the two sealing components and through the rear opening hole to fix the two sealing components; e. Inject polyurethane waterproof coating from the grouting hole until the slurry flows out from the overflow port to fill the gap between the wall-penetrating pipe and the inner wall of the rear opening tightly; f. Close the grouting holes and overflow holes.

8. The waterproof construction method of claim 7, characterized in that: In step b, after the hole is opened, the hole walls within 3 cm on both sides of the hole are roughened and then cleaned.

9. The waterproof construction method of claim 7, characterized in that: In step c, a sealing assembly with a grouting hole and an overflow hole is arranged inside the wall, and the grouting hole is located at the lower side of the wall-penetrating pipe.

10. The waterproof construction method of claim 7, characterized in that: In step d, a connecting piece is inserted into the first connecting hole and the second connecting hole, and the two sealing components are fixed to the wall surface through the connecting piece.

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