Leakage-proof structure for rear hole of out-of-wall pipeline

Abstract

The utility model provides an out-of-wall pipeline post-trepanning leakproof structure, the leakproof structure comprises a waterstop sleeve and an impervious envelope, the waterstop sleeve passes through a wall body, one end of the waterstop sleeve close to the outer side of the wall body extends out of the wall body and is used for sleeving the outside of the pipeline, the impervious envelope is arranged on the outer side of the wall body, and the impervious envelope is arranged on the outer side of the wall body. And one end, extending out of the wall body, of the water stop sleeve is wrapped. The leakage-proof structure has the advantages that the durability of the leakage-proof structure is improved, rework caused by poor durability is reduced, the repair cost is saved, the waterproof performance of the whole structure is greatly improved due to the arrangement of multiple waterproof layers, and leakage is effectively prevented.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, and in particular relates to a leak-proof structure for opening holes after a pipe protrudes from a wall. Background Technology

[0002] With the renovation of old residential areas and the improvement of municipal infrastructure, the addition of underground pipes and cables is inevitable. This necessitates openings in the underground waterproof walls for laying pipes and cables, leading to increasingly prominent issues related to seepage prevention at these newly opened openings. Traditional on-site installation of pipes and cables typically involves sealing the gaps between the pipes / cables and the newly opened openings with polymer waterproof mortar, followed by sealing with an external waterproof layer. This method only provides two layers of waterproofing without rigid waterproofing, resulting in insufficient durability, susceptibility to leakage, and compromised wall quality. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a leak-proof structure for opening holes after pipes protrude from the wall, which effectively solves the technical problems of poor waterproof performance, poor durability, and easy leakage of pipes after opening holes, and overcomes the shortcomings of the prior art.

[0004] The technical solution adopted in this utility model is: a leak-proof structure for opening holes after a pipe protrudes from the wall, comprising:

[0005] A water-stop sleeve passes through the wall, with one end extending out of the wall near the outside of the wall, and is used to be fitted over the outside of the pipe;

[0006] An anti-seepage enclosure is installed on the outside of the wall, wrapping around the end of the water-stop sleeve that extends out of the wall.

[0007] Furthermore, the impermeable enclosure is provided with longitudinal reinforcing bars, which are inserted on the outside of the wall.

[0008] Furthermore, the longitudinal reinforcing bars are provided with stirrups.

[0009] Furthermore, the exterior of the impermeable encapsulation is provided with a first waterproof layer.

[0010] Furthermore, the impermeable enclosure is provided with an expansion water-stop strip, which is arranged on the outside of the wall along the circumference of the water-stop sleeve.

[0011] Furthermore, a second waterproof layer is provided between the water-stop sleeve and the wall of the rear-opening hole.

[0012] Furthermore, a third waterproof layer is provided between the water-stop sleeve and the pipe.

[0013] Furthermore, the third waterproof layer has sealing layers at both ends, and the sealing layers are disposed between the water-stop sleeve and the pipe.

[0014] The advantages and positive effects of this utility model are as follows: by adopting the above technical solution, the durability of the leak-proof structure is improved, rework caused by poor durability is reduced, repair costs are saved, and multi-layer waterproofing is set up, which greatly improves the waterproof performance of the overall structure and effectively prevents leakage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a leak-proof structure for a pipe that extends out of the wall and has a hole.

[0016] Figure 2 This is a cross-sectional view AA of a wall-mounted pipe with a back opening for leak prevention, according to an embodiment of this utility model.

[0017] In the picture:

[0018] 1. Wall 2. Water-stop sleeve 3. First waterproof layer

[0019] 4. Expansion seal strip; 5. Longitudinal reinforcing bars; 6. Stirrups.

[0020] 7. Impermeable encapsulation; 8. Second waterproof layer; 9. Pipes

[0021] 10. Third waterproof layer 11. Sealing layer Detailed Implementation

[0022] This utility model provides a leak-proof structure for opening holes after a pipe protrudes from the wall. The following description of the embodiment of this utility model is based on the accompanying drawings.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "top," "bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing 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, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that unless otherwise expressly specified and limited, the terms "set" and "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model through specific circumstances.

[0024] like Figure 1 and Figure 2As shown in the figure, this utility model provides a leak-proof structure for a pipe with a rear opening in the wall, including a water-stop sleeve 2 and an anti-seepage seal 7. The water-stop sleeve 2 passes through the rear opening in the wall 1, with one end flush with the inner side of the wall 1 and the other end extending out of the wall 1. A water-stop ring is integrally provided at the end of the water-stop sleeve 2 extending out of the wall 1. The specific dimensions of the water-stop sleeve 2 are determined according to the model of the pipe 9 to be installed. The anti-seepage seal 7 is set on the outer side of the wall 1, wrapping around the end of the water-stop sleeve 2 extending out of the wall 1. The anti-seepage seal 7 is made of concrete. The water-stop sleeve 2 and the anti-seepage seal 7 serve as rigid waterproofing, increasing the durability of the waterproof structure and improving the waterproofing performance.

[0025] Specifically, to enhance the stability of the waterproofing enclosure 7 and prevent cracking at the contact point with the wall 1, longitudinal reinforcing bars 5 are provided inside the waterproofing enclosure 7, and these bars are inserted on the outside of the wall 1. Multiple stirrups 6 are provided on the longitudinal reinforcing bars 5. Before pouring the waterproofing enclosure 7, the longitudinal reinforcing bars 5 are implanted into the outside of the wall 1 using a rebar anchoring method, distributed in a circular pattern along the circumference of the waterstop sleeve 2. Multiple stirrups 6 are tied to the longitudinal reinforcing bars 5, and then the formwork is erected and the concrete is poured. Through concrete pouring, the end of the waterstop sleeve 2 extending from the wall 1, the longitudinal reinforcing bars 5, and the stirrups 6 are integrated into a single structure. This integrated structure is located on the outside of the wall 1, improving the waterproofing performance.

[0026] Preferably, a first waterproof layer 3 is provided on the outside of the anti-seepage enclosure 7. The specific material of the first waterproof layer 3 is not limited. Preferably, the first waterproof layer 3 is a waterproof membrane. After the anti-seepage enclosure 7 is poured, the waterproof membrane is bonded to the outside of the anti-seepage enclosure 7, forming an integral external waterproof layer with the original waterproof membrane on the outside of the wall 1, which together play a waterproofing role.

[0027] Preferably, the anti-seepage enclosure 7 is provided with an expansion waterstop strip 4, which is arranged on the outer side of the wall 1 along the circumference of the waterstop sleeve 2. Before pouring the anti-seepage enclosure 7, the expansion waterstop strip 4 is bonded to the contact position between the outer side of the wall 1 and the anti-seepage enclosure 7 to enhance the waterproof performance of the construction joint. The expansion waterstop strip 4 is arranged in a ring along the circumference of the waterstop sleeve 2.

[0028] Preferably, a second waterproof layer 8 is provided between the water-stop sleeve 2 and the wall of the subsequently opened hole. The specific material of the second waterproof layer 8 is not limited. Preferably, the second waterproof layer 8 is a polymer waterproof mortar layer. After the anti-seepage sealing 7 is poured, the polymer waterproof mortar layer is injected into the gap between the water-stop sleeve 2 and the wall of the subsequently opened hole as the second waterproof layer 8, further improving the waterproof performance.

[0029] Preferably, a third waterproof layer 10 is provided between the water-stop sleeve 2 and the pipe 9. The specific material of the third waterproof layer 10 is not limited. Preferably, the third waterproof layer 10 is a layer of asphalt hemp fiber, used to seal the gap between the water-stop sleeve 2 and the pipe 9.

[0030] Preferably, the third waterproof layer 10 has sealing layers 11 at both ends, and the sealing layers 11 are disposed between the water-stop sleeve 2 and the pipe 9. The specific material of the sealing layer 11 is not limited. Preferably, the sealing layer 11 is a sealant, used to seal the ends of the gap between the water-stop sleeve 2 and the pipe 9.

[0031] Example: A leak-proof structure for a pipe extending out of a wall with a rear opening, comprising a water-stop sleeve 2 and an anti-seepage enclosure 7. The water-stop sleeve 2 passes through the rear opening in the wall 1, with one end flush with the inner side of the wall 1 and the other end extending out of the wall 1. A water-stop ring is integrally provided at the end of the water-stop sleeve 2 extending out of the wall 1. The anti-seepage enclosure 7 is located on the outer side of the wall 1, wrapping around the end of the water-stop sleeve 2 extending out of the wall 1. The anti-seepage enclosure 7 is a concrete structure. The anti-seepage enclosure 7 has longitudinal reinforcing bars 5 inside, which are inserted in a circular pattern along the circumference of the water-stop sleeve 2 on the outer side of the wall 1. Multiple stirrups 6 are tied to the longitudinal reinforcing bars 5. A first waterproof layer 3, specifically a waterproof membrane, is bonded to the outside of the anti-seepage enclosure 7, forming an integral external waterproof layer with the original waterproof membrane on the outer side of the wall 1. An annular expansion water-stop strip 4 is bonded along the circumference of the water-stop sleeve 2 at the contact position between the anti-seepage enclosure 7 and the outer side of the wall 1. A second waterproof layer 8, specifically a polymer waterproof mortar layer, is provided between the water-stop sleeve 2 and the wall of the subsequently opened hole. A third waterproof layer 10, specifically an asphalt-impregnated hemp fiber layer, is provided between the water-stop sleeve 2 and the pipe 9. A sealing layer 11, specifically a sealant, is provided at both ends of the third waterproof layer 10.

[0032] The construction method for the above-mentioned leak-proof structure for pipes protruding from the wall includes the following steps:

[0033] A hole is drilled in the wall 1 where the pipe 9 needs to be installed using a water drill. The water-stop sleeve 2 is installed and temporarily fixed so that one end of the water-stop sleeve 2 is flush with the inside of the wall 1 and the other end protrudes out of the outside of the wall 1. The water-stop ring on the water-stop sleeve 2 is set on the outside of the wall 1.

[0034] Longitudinal reinforcing bars 5 are inserted on the outside of wall 1, so that the longitudinal reinforcing bars 5 are arranged in a circular pattern around the waterstop sleeve 2, and stirrups 6 are tied. The contact area between the outside of wall 1 and the anti-seepage seal 7 is roughened and cleaned. After the expansion waterstop strip 4 is pasted, the formwork is erected and concrete is poured to form the anti-seepage seal 7.

[0035] After the concrete of the anti-seepage enclosure 7 has solidified, remove the formwork. Adhere the first waterproof layer 3, specifically a waterproof membrane, to the outside of the anti-seepage enclosure 7, so that the waterproof membrane outside the anti-seepage enclosure is integrated with the waterproof membrane on the outside of the original wall 1. Additional waterproof layers are installed at the internal and external corners according to the specifications.

[0036] Clean the gap between the waterstop sleeve 2 and the wall of the rear opening, and inject the second waterproof layer 8, which is polymer waterproof mortar.

[0037] Insert the pipe 9 to be installed into the water-stop sleeve 2, and fill the space between the water-stop sleeve 2 and the outer wall of the pipe 9 with a third waterproof layer 10, specifically asphalt-impregnated hemp fiber. Seal both ends of the third waterproof layer 10 with a sealing layer 11, specifically sealant.

[0038] The aforementioned leak-proof structure with an opening after the wall-mounted pipe 9 has three potential pathways for water seepage:

[0039] 1. Seepage along the water-stop sleeve 2;

[0040] Along this seepage path, a first waterproof layer 3, a water-stop ring on the water-stop sleeve 2, and a second waterproof layer 8 are installed in sequence for protection.

[0041] 2. Infiltrates from the surface of the impermeable encapsulation 7;

[0042] Along this seepage path, a concrete structure consisting of a first waterproof layer 3, an anti-seepage seal 7, and a second waterproof layer 8 is installed for protection.

[0043] 3. It seeps in along the construction joint between the outer side of wall 1 and the anti-seepage seal 7.

[0044] Along this seepage path, a first waterproof layer 3, an expansion stop strip 4, and a second waterproof layer 8 are installed in sequence for protection.

[0045] The advantages and positive effects of this utility model are:

[0046] 1. By setting up a water-stop sleeve and an anti-seepage seal as a rigid waterproof layer, the durability of the leak-proof structure is improved, rework caused by poor durability is reduced, and repair costs are saved.

[0047] 2. Multiple layers of waterproofing are installed along each seepage path, which greatly improves the overall waterproofing performance of the structure and effectively prevents leakage.

[0048] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A leak-proof structure for opening holes after a pipe protrudes from a wall, characterized in that, include: A water-stop sleeve passes through the wall, with one end extending out of the wall near the outside of the wall, and is used to be fitted over the outside of the pipe; An anti-seepage enclosure is installed on the outside of the wall, wrapping around the end of the water-stop sleeve that extends out of the wall.

2. The anti-leakage structure for a pipe extending out of the wall according to claim 1, characterized in that: The impermeable enclosure is provided with longitudinal reinforcing bars, which are inserted on the outside of the wall.

3. The anti-leakage structure for a pipe extending out of the wall according to claim 2, characterized in that: The longitudinal reinforcing bars are provided with stirrups.

4. A leak-proof structure for a pipe extending out of a wall with an opening as described in any one of claims 1-3, characterized in that: The exterior of the impermeable enclosure is provided with a first waterproof layer.

5. The anti-leakage structure for a pipe extending out of the wall according to claim 4, characterized in that: The impermeable enclosure is provided with an expansion water-stop strip, which is arranged on the outside of the wall along the circumference of the water-stop sleeve.

6. A leak-proof structure for a pipe extending out of a wall with a hole as described in any one of claims 1-3 and 5, characterized in that: A second waterproof layer is provided between the water-stop sleeve and the wall of the subsequently opened hole.

7. A leak-proof structure for a pipe extending out of a wall with a hole as described in any one of claims 1-3 and 5, characterized in that: A third waterproof layer is provided between the water-stop sleeve and the pipe.

8. The anti-leakage structure for a pipe extending out of the wall according to claim 7, characterized in that: The third waterproof layer has sealing layers at both ends, and the sealing layers are located between the water-stop sleeve and the pipe.

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