Repair structure for leakage downstream face of pipe root of penetrating structure
By creating a V-shaped groove on the back side of the wall and adopting a multi-layer waterproof design, the problem of leakage repair work involving through-wall pipes having a significant impact on homeowners' lives was solved, achieving a highly efficient and reliable leakage repair effect.
Patent Information
- Application Number
- CN202520920245.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-05-12
AI Technical Summary
In the existing technology, most of the repair methods for leaking through-wall pipes involve excavating the water-facing side, which affects the residents' living and daily life, and the probability of leakage recurrence is high.
A V-shaped groove is opened on the back side of the wall, and a multi-layer waterproof design is used, including a waterproof cotton rope layer, a leak-stopping material layer, an anti-seepage mortar layer, and an adhesive layer, to form multiple waterproof barriers, avoiding excavation on the water-facing side and achieving back-side treatment.
It reduces the impact on the residents' living environment, improves the reliability and durability of the treatment, effectively reduces the chance of recurrence, and achieves a more efficient and reliable leakage repair effect.
Smart Images

Figure CN223975669U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, and in particular to a repair structure for the backwater surface of a pipe root that is leaking through the structure. Background Technology
[0002] Pipes penetrating walls are a common building structure and a weak point in waterproofing projects. Therefore, waterproofing is constructed around them during construction. However, due to inadequate construction techniques and aging of waterproofing materials, pipes penetrating walls are prone to leakage after a period of use, requiring repair work.
[0003] Currently, most methods for repairing leaks in through-wall pipes involve excavating the water-facing side. However, this method can disrupt the homeowner's living and daily life. Furthermore, the cost of restoring the decorative layer on the water-facing side is higher after its removal. In addition, most methods use grouting to repair cracks, but when the leakage volume is large, the sealing effect of the sealing material will be poor, leading to a high probability of re-leakage. Utility Model Content
[0004] This utility model provides a repair structure for the back side of a pipe root that is leaking through a structure. It solves the problem that most existing methods for repairing leaks through pipes in walls involve excavating the water-facing side, which affects the residents' living conditions and has a high probability of recurrence. This invention achieves back side treatment of pipe roots that are leaking through a structure, reducing the impact on residents' living conditions and improving the reliability of the treatment.
[0005] This utility model provides a repair structure for leakage on the back side of a pipe root penetrating a structure, comprising:
[0006] Walls;
[0007] A through-wall pipe is installed on the wall, and a V-shaped groove is provided on the back side of the wall corresponding to the root of the through-wall pipe.
[0008] A waterproof cotton rope layer is provided at the end of the V-shaped groove away from the groove opening and is arranged around the circumference of the through-wall pipe.
[0009] A leak-sealing material layer is filled into the V-shaped groove;
[0010] An anti-seepage mortar layer is provided on the side of the sealing material layer away from the waterproof cotton rope layer, and is applied to the outer wall of the wall along the circumference of the through-wall pipe.
[0011] The adhesive layer is located on the side of the anti-seepage mortar layer away from the leak-sealing material layer and is arranged around the circumference of the through-wall pipe.
[0012] According to the present invention, a repair structure for the back surface of a pipe root leakage is provided, wherein the groove depth of the V-shaped groove is greater than one-third of the wall thickness, and the groove depth of the V-shaped groove is less than one-half of the wall thickness.
[0013] According to the present invention, a repair structure for the back side of a through-wall pipe root leakage is provided, wherein the waterproof cotton rope layer comprises multiple turns of cotton rope, which are fully soaked in polyurethane grout and then wrapped around the outer periphery of the through-wall pipe.
[0014] According to the present invention, a repair structure for the back surface of a perforated pipe root that is leaking is provided, wherein the anti-seepage mortar layer is sandwiched with a crack-resistant and alkali-resistant mesh cloth.
[0015] According to the present invention, a repair structure for the backwater surface of a through-structure pipe root leakage is provided, wherein the sealing material layer is flush with the opening of the V-shaped groove.
[0016] According to the present invention, a repair structure for the back surface of a through-wall pipe root that is leaking is provided, wherein the anti-seepage mortar layer extends radially outward along the through-wall pipe to a radius greater than the radius of the outer periphery of the V-shaped groove.
[0017] According to the present invention, a repair structure for the back side of a leaking pipe root is provided, which further includes a finishing layer, wherein the finishing layer is disposed on the side of the anti-seepage mortar layer away from the leak-sealing material layer.
[0018] According to the present invention, a repair structure for the back surface of a pipe root leakage is provided, wherein the leak-sealing material layer is a quick-setting inorganic waterproof leak-sealing material layer.
[0019] According to the present invention, a repair structure for the back side of a pipe root leakage is provided, wherein the wall has a water-facing side and a back side that are arranged opposite to each other, and the V-shaped groove is formed on the back side.
[0020] This utility model provides a repair structure for leaks on the back side of pipe penetrations. By creating a V-shaped groove on the back side of the wall, excavation on the front side is avoided. Simultaneously, a multi-layered waterproof design (waterproof cotton rope layer, leak-stopping material layer, anti-seepage mortar layer, and sealant layer) effectively treats the back side of the pipe penetrations, preventing excavation on the front side and minimizing the impact on the homeowner's living environment. Furthermore, the multiple waterproof barriers improve the reliability and durability of the repair, effectively reducing the likelihood of recurrence and achieving a more efficient and reliable leak repair effect. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the repair structure for the backwater surface of the through-structure pipe root leakage provided by this utility model.
[0023] Figure label:
[0024] 10. Repair structure for leakage on the back side of the pipe root;
[0025] 100. Wall; 110. V-groove;
[0026] 200. Through-wall pipe;
[0027] 300. Waterproof cotton rope layer;
[0028] 400. Leak-sealing material layer;
[0029] 500. Impermeable mortar layer;
[0030] 600, Apply adhesive layer;
[0031] 700, Finishing layer. Detailed Implementation
[0032] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0033] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0034] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.
[0035] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0037] The following is combined Figure 1 The present invention provides a detailed description of a repair structure for the backwater surface of a through-structure pipe root leakage through specific embodiments and application scenarios.
[0038] In the embodiments of this utility model, such as Figure 1As shown, a repair structure 10 for leaking pipe roots on the back side of a structural structure includes a through-wall pipe 200, a wall 100, a waterproof cotton rope layer 300, a leak-sealing material layer 400, an anti-seepage mortar layer 500, and a sealant layer 600. The through-wall pipe 200 is installed on the wall 100, and a V-groove 110 is provided on the back side of the wall 100 corresponding to the pipe root of the through-wall pipe 200. The waterproof cotton rope layer 300 is located in the V-groove 110 away from the groove opening. The end position is surrounded around the wall-penetrating pipe 200; the sealing material layer 400 is filled in the V-shaped groove 110; the anti-seepage mortar layer 500 is located on the side of the sealing material layer 400 away from the waterproof cotton rope layer 300, and is scraped onto the outer wall of the wall 100 along the circumference of the wall-penetrating pipe 200; the adhesive layer 600 is located on the side of the anti-seepage mortar layer 500 away from the sealing material layer 400, and is surrounded around the circumference of the wall-penetrating pipe 200.
[0039] In this utility model embodiment, the through-wall pipe 200 refers to a pipe that passes through the wall 100 to achieve a specific function (such as water supply and drainage, electrical wiring, etc.). The wall 100 is a load-bearing or non-load-bearing wall in a building, and the through-wall pipe 200 needs to pass through the wall 100 to achieve its function.
[0040] The V-groove 110 is located on the back side of the wall 100, corresponding to the circumference of the root of the through-wall pipe 200. The V-groove 110 has a groove at a certain angle. The design of the V-groove 110 can provide the necessary space for subsequent waterproofing material construction. At the same time, the shape of the V-groove 110 helps to fix and bond the waterproofing material, improving its bonding strength with the wall 100.
[0041] The waterproof cotton rope layer 300 can be a water-swellable cotton rope or an expandable waterproof cotton rope. The waterproof cotton rope layer 300 is located at the end of the V-groove 110 away from the groove opening and is wrapped around the circumference of the through-wall pipe 200. The waterproof cotton rope layer 300 is a cotton rope soaked in polyurethane grouting liquid, which expands when exposed to water.
[0042] The 300-layer waterproof cotton rope acts as the first line of defense against water damage. It expands upon contact with water, quickly sealing gaps and preventing water from entering. The softness of the cotton rope provides cushioning, accommodating minor changes in the gaps between the pipe and the wall.
[0043] The sealing material layer 400 is filled within the V-shaped groove 110, located between the waterproof cotton rope layer 300 and the anti-seepage mortar layer 500. As a second waterproof barrier, the sealing material layer 400 forms a more robust water-resistant layer on top of the waterproof cotton rope layer 300, thereby improving the overall waterproof performance.
[0044] The anti-seepage mortar layer 500 is placed on the side of the sealing material layer 400 away from the waterproof cotton rope layer 300, and is scraped onto the outer wall of the wall 100 along the circumference of the wall-penetrating pipe 200.
[0045] The 500mm anti-seepage mortar layer acts as a third waterproof barrier, forming a continuous waterproof layer that covers a larger area and resists greater water pressure. The anti-seepage mortar has excellent water resistance and can withstand water erosion for a long time.
[0046] The adhesive layer 600 is located on the side of the anti-seepage mortar layer 500 away from the leak-sealing material layer 400, and is arranged around the circumference of the wall-penetrating pipe 200.
[0047] The 600-layer sealant acts as the fourth layer of waterproofing, providing a long-lasting seal. The sealant has excellent adhesion and elasticity, adapting to the thermal expansion and contraction of the pipes and maintaining long-term sealing performance.
[0048] This application avoids excavation on the water-facing side by creating a V-shaped groove 110 on the back side of the wall (100mm). Simultaneously, through a multi-layered waterproofing design (waterproof cotton rope layer 300mm, leak-stopping material layer 400mm, anti-seepage mortar layer 500mm, and sealant layer 600mm), it achieves back-side treatment of pipe penetrations, avoiding excavation on the water-facing side and minimizing the impact on the residents' living environment. Furthermore, the multiple waterproof barriers improve the reliability and durability of the treatment, effectively reducing the likelihood of recurrence and achieving a more efficient and reliable leak repair effect.
[0049] In some embodiments, the groove depth of the V-groove 110 is greater than one-third of the wall thickness 100, and the groove depth of the V-groove is less than one-half of the wall thickness.
[0050] It is understood that in this embodiment, the groove depth of the V-groove 110 is greater than one-third of the wall thickness 100, and the groove depth of the V-groove is less than one-half of the wall thickness, to ensure that the V-groove 110 has sufficient depth so that subsequent treatment measures can be reliably embedded. At the same time, the sufficient depth of the V-groove 110 allows for the early setting of a water-blocking barrier, extending the leakage path.
[0051] Reference Figure 1 According to the present invention, a repair structure 10 for the back water surface of a through-wall pipe root leakage is provided. The waterproof cotton rope layer 300 includes multiple loops of cotton rope. After the multiple loops of cotton rope are fully soaked in polyurethane grout, they are wrapped around the outer periphery of the through-wall pipe 200.
[0052] Understandably, multi-loop cotton rope better conforms to the complex shape of the through-wall pipe 200 and its surrounding area, especially in the presence of irregular surfaces or gaps. The flexibility of the cotton rope allows it to tightly wrap around the pipe, filling any tiny gaps or cracks and providing more comprehensive protection. When fully soaked in polyurethane grout, the cotton rope acquires the property of swelling upon contact with water. Upon contact with moisture, these cotton ropes rapidly expand to form an elastic gel, instantly filling and sealing various tiny gaps and holes around the pipe. This provides a quick and effective barrier against initial leaks.
[0053] Specifically, the number of loops in the cotton rope can be set according to specific needs, and no special limitation is made here.
[0054] In some embodiments, the impermeable mortar layer 500 is sandwiched with a crack-resistant and alkali-resistant mesh fabric.
[0055] Understandably, crack-resistant and alkali-resistant mesh fabric possesses good tensile strength and flexibility. When the anti-seepage mortar layer 500 is subjected to external forces (such as temperature changes, base layer deformation, etc.), the mesh fabric can disperse stress and inhibit the formation of cracks.
[0056] This embodiment significantly improves the crack resistance, overall strength, and durability of the anti-seepage mortar layer 500 by sandwiching crack-resistant and alkali-resistant mesh cloth in the anti-seepage mortar layer 500, and ensures that it can work stably for a long time in an alkaline environment.
[0057] Reference Figure 1 According to the present invention, a repair structure 10 for the back surface of a through-structure pipe root leakage is provided, wherein the sealing material layer 400 is flush with the groove opening of the V-shaped groove 110.
[0058] Understandably, filling the 400 layer of sealing material to be flush with the opening of the V-groove 110 ensures that subsequent construction layers (such as the anti-seepage mortar layer 500, sealant layer, etc.) can be laid on a flat foundation. This not only helps improve the quality of subsequent processes but also ensures good bonding between the layers of material, enhancing the overall waterproofing effect.
[0059] Reference Figure 1 According to the present invention, a repair structure 10 for the back surface of a through-wall pipe root leakage is provided, wherein the anti-seepage mortar layer 500 extends radially outward along the through-wall pipe 200 with a radius greater than the radius of the outer periphery of the V-groove 110.
[0060] Understandably, in this embodiment, extending the anti-seepage mortar layer 500 beyond the V-groove 110 helps enhance the bond strength between the repaired area and the surrounding wall 100. This makes the entire waterproofing system more stable and reduces the risk of cracking or peeling due to localized stress concentration. Simultaneously, the larger mortar layer can better disperse the stress applied to the through-wall pipe 200 and its surrounding area, effectively reducing the likelihood of crack formation.
[0061] Reference Figure 1 According to the present invention, a repair structure 10 for the back side of a through-structure pipe root leakage is provided, which also includes a finishing layer 700, which is disposed on the side of the anti-seepage mortar layer 500 away from the leak-stopping material layer 400.
[0062] Understandably, the 700 finishing layer is primarily intended to restore the building's original appearance, ensuring that the repaired area remains consistent with the surrounding walls 100 or other surfaces. This enhances the overall aesthetics of the maintained building and improves the user experience.
[0063] In some embodiments, the sealing material layer 400 is a quick-setting inorganic waterproof sealing material layer 400.
[0064] Understandably, quick-setting inorganic waterproofing and sealing materials have the characteristic of rapid solidification, allowing them to harden and function quickly, seamlessly transitioning to the next step. This significantly shortens construction time, improves efficiency, and reduces disruption to homeowners' lives. Especially in emergency leak situations, they can quickly control the leak and minimize losses.
[0065] Reference Figure 1 According to the present invention, a repair structure 10 for the back water surface of a through-structure pipe root leakage is provided, wherein the wall 100 has a water-facing surface and a back water surface arranged opposite to each other, and a V-shaped groove 110 is opened on the back water surface.
[0066] Understandably, constructing the work on the back side of the building, rather than the front side, avoids damage to the interior finishes and disruption to residents' daily lives. The front side is typically the side directly facing the user, such as interior walls or floors. Excavating and repairing this side not only generates noise and dust pollution but also forces residents to relocate temporarily or endure inconvenience. Constructing on the back side minimizes these disturbances.
[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A repair structure for leaking backwater surface of a pipe root, characterized in that, The utility model relates to a waterproof structure of a wall body, comprising: a wall body; a through-wall pipe penetrating the wall body, a V-shaped groove being arranged on the backwater side of the wall body corresponding to the circumferential direction of the root of the through-wall pipe; a waterproof cotton rope layer being arranged on the end of the V-shaped groove away from the groove opening and around the circumferential direction of the through-wall pipe; a plugging material layer being filled in the V-shaped groove; an anti-permeation mortar layer being arranged on the side of the plugging material layer away from the waterproof cotton rope layer and being applied on the outer side wall of the wall body along the circumferential direction of the through-wall pipe; a glue layer being arranged on the side of the anti-permeation mortar layer away from the plugging material layer and being arranged around the circumferential direction of the through-wall pipe.
2. The repair structure for repairing a root leakage back surface of a structure penetrating a pipe according to claim 1, characterized by The depth of the V-shaped groove is greater than one-third of the thickness of the wall body and less than one-half of the thickness of the wall body.
3. The repair structure for repairing a root leakage of a structure penetrating a back surface of a structure according to claim 1, characterized by The waterproof cotton rope layer comprises multiple turns of cotton rope, which is wound around the outer circumferential direction of the through-wall pipe after being sufficiently soaked in polyurethane grouting liquid.
4. The repair structure for repairing a root leakage back surface of a structure penetrating a pipe according to claim 1, characterized by The anti-permeation mortar layer is sandwiched with anti-cracking and alkali-resistant mesh cloth.
5. The repair structure for repairing a root leakage backface of a structure penetrating a pipe according to claim 1, wherein The plugging material layer is arranged in a flat manner with the groove opening of the V-shaped groove.
6. The repair structure for repairing a root leakage of a structure penetrating a back surface of a structure according to Claim 1, wherein The radial extension radius of the anti-permeation mortar layer along the through-wall pipe is greater than the radius of the outer circumferential direction of the V-shaped groove.
7. The repair structure for root leakage of a penetrating structure according to any one of claims 1 to 6, characterized in that, A finishing layer is further arranged on the side of the anti-permeation mortar layer away from the plugging material layer.
8. The repair structure for repairing a root leakage of a structure penetrating a back surface of a structure according to Claim 1, wherein The plugging material layer is a quick-setting inorganic waterproof plugging material layer.
9. The repair structure for repairing a root leakage of a structure penetrating a back surface of a structure according to Claim 1, wherein The wall body has a water-facing surface and a backwater surface arranged oppositely, and the V-shaped groove is arranged on the backwater surface.