Pipeline through-wall waterproof structure and fabricated building
By integrating the casing and base into a single structure and using decorative trim design, the problem of easy leakage when pipelines pass through walls in prefabricated buildings is solved, thereby improving the waterproof performance of pipelines and the overall waterproof effect of the building.
Patent Information
- Application Number
- CN202520750899.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-18
AI Technical Summary
In prefabricated buildings, gaps can easily appear when pipes pass through walls, resulting in poor waterproofing performance, especially during the rainy season when rainwater leaks in.
The casing and base are integrally molded. The casing is fitted outside the pipeline body and the gaps are sealed by the waterproof part. The base is fixed inside the exterior wall and the edge design is combined to reduce gaps and the risk of water seepage.
It effectively reduces the gap between the pipeline body and the external wall structure, prevents rainwater from seeping in, improves waterproof performance, and ensures the normal operation of the pipeline and the waterproof effect of the building.
Smart Images

Figure CN223855047U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of fabricated building, especially a pipeline wall -penetrating waterproof structure and fabricated building. BACKGROUND
[0002] Fabricated building refers to that before the construction stage starts, manufacturers transfer a large number of on-site operations in the traditional construction process to the factory, process prefabricated components and accessories (such as floor, wallboard, stairs, balcony, etc.) according to national standards and design requirements, then transport them to a specific location, and then assemble the components and accessories by professional workers through reliable connection methods, and combine other on-site construction contents to form an integrated fabricated building system. Fabricated building mainly includes prefabricated concrete structure, steel structure, modern wood structure building, etc. Exterior wall waterproofing is one of the key waterproof design of fabricated building.
[0003] The wall -penetrating pipeline of the exterior wall usually includes air pipe and electrical pipeline. For the air pipe, the existing technology generally reserves the hole during the construction of the building exterior wall, and then uses rock wool with the same thickness and material as the wall to block the fire after the pipeline installation is completed, the surrounding is treated with waterproof sealant, and the outside is fixed with single-color plate with the same material as the exterior wall panel. The micro-vibration generated by the power pipeline during operation will drive the surrounding waterproof sealant, causing gaps between the waterproof sealant, the pipeline and the panel. When the summer rainy season comes, rainwater seeps into the hole panel gap, along the pipeline into the inside of the substation, causing leakage.
[0004] For the electrical pipeline, the fabricated steel structure substation often has many holes on the building exterior wall due to process requirements, and multiple electrical pipeline holes often appear side by side. The exterior wall will combine the small holes into a large rectangular hole for easy on-site construction when designing the layout, but when sealing and closing the holes of multiple pipes penetrating the exterior wall panel in this area, the gap between the pipes is too small to be sealed in place, causing leakage. When the rainy season comes, rainwater seeps into the substation along the gap between the pipeline and the sealing material. After the electrical pipeline is installed and put into use, the power pipeline will produce micro-vibration during operation, causing the waterproof sealant between the sealing steel plate and the power pipeline to crack and leak.
[0005] Therefore, in the existing technology, when the pipeline (including air pipe and electrical pipeline) penetrates the wall, there are gaps and rainwater leakage problems, and the waterproof performance is poor. UTILITY MODEL CONTENTS
[0006] The utility model discloses a pipeline wall -penetrating waterproof structure and fabricated building, to solve the pipeline (including air pipe, electrical pipeline) of fabricated building of prior art when penetrating the wall, the technical problem of easy gap, poor waterproof performance, the preferred technical scheme of the plurality of technical schemes provided by the utility model can produce the plurality of technical effects detailed in the following.
[0007] To realize the above-mentioned purpose, the utility model provides the following technical scheme:
[0008] The utility model discloses a pipeline wall -penetrating waterproof structure, including pipeline body, cover pipe and base, wherein:
[0009] The cover pipe is sleeved on the pipeline body, and the gap between the cover pipe and the pipeline body is blocked by the sealing waterproof part.
[0010] The base and the cover pipe are integrally formed, the base is fixed to the outer periphery of the cover pipe, a wall hole is formed in the outer wall, the base is fixed in the wall hole, the cover pipe penetrates the wall hole, and the cover pipe and the base block the gap between the pipeline body and the wall hole.
[0011] Preferably, the pipeline body includes an air pipe, and the gap between the cover pipe and the air pipe is blocked by the sealing waterproof part.
[0012] Preferably, the cover pipe is a bent pipe structure, the air inlet section of the cover pipe is sleeved on the air pipe, and the air outlet of the cover pipe is vertically arranged downward.
[0013] Preferably, an insect screen is fixedly arranged at the air outlet of the cover pipe.
[0014] Preferably, the pipeline body includes an electrical pipe, and the gap between the cover pipe and the electrical pipe is blocked by the sealing waterproof part.
[0015] Preferably, the cover pipe is horizontally arranged.
[0016] Preferably, the pipeline wall -penetrating waterproof structure further includes a keel piece, the keel piece is fixed to the outer wall, and the base and the keel piece are welded and fixed.
[0017] Preferably, a decorative edge is sealingly and fixedly arranged around the wall hole, and the decorative edge includes an upper decorative edge and a lower decorative edge.
[0018] The bottom wall of the upper decorative edge is gradually arranged downward along the direction close to the outdoor side, and the top wall of the lower decorative edge is gradually arranged downward along the direction close to the outdoor side.
[0019] Preferably, when the pipeline body is an electrical pipe, the upper decorative edge is provided with water droplet holes, and the water droplet holes are arranged at intervals along the length direction of the upper decorative edge.
[0020] The utility model also provides a kind of prefabricated building, including above pipeline wall-penetrating waterproof structure.
[0021] The pipeline wall-penetrating waterproof structure and the prefabricated building provided by the utility model have the following beneficial effects compared with the prior art: the cover pipe and the base of the pipeline body are integrally formed, effectively reducing the gap between the pipeline body and the outer wall structure, and avoiding water seepage. When the pipeline body is a wind pipe, it can effectively communicate with the outside through the cover pipe, realize exhaust, and prevent rainwater from seeping into the room through the hole gap. When the pipeline body is an electrical pipe, the gap between the electrical pipe and the outer wall structure is blocked by the cover pipe, which reduces the possibility of water seepage while ensuring electrical connection, and improves the waterproof performance. BRIEF DESCRIPTION OF DRAWINGS
[0022] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creative labor.
[0023] Figure 1 is the schematic diagram of pipeline wall-penetrating waterproof structure when the pipeline body is a wind pipe;
[0024] Figure 2 is the schematic diagram of pipeline wall-penetrating waterproof structure when the pipeline body is a GIS pipe;
[0025] Figure 3 is the schematic diagram of pipeline wall-penetrating waterproof structure when the pipeline body is an electrical bus;
[0026] Figure 4 is the schematic diagram of pipeline wall-penetrating waterproof structure when the pipeline body is a wind pipe.
[0027] In the figure, 1 is a cover pipe, 2 is a base, 31 is a wind pipe, 32 is a GIS pipe, 33 is an electrical bus, 4 is a sealing waterproof part, 5 is an insect screen, 6 is a keel piece, 71 is an upper decorative edge, 72 is a lower decorative edge, 8 is a water droplet hole, 9 is a sealing glue, 10 is an outer wall, and 11 is a wall hole. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope protected by the utility model.
[0029] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.
[0030] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0031] The utility model embodiment provides a kind of pipeline wall penetration waterproof structure and fabricated building, can effectively reduce the gap between pipeline body and outer wall structure, avoid water seepage.
[0032] The technical scheme provided by the utility model will be described in more detail below. Figures 1-4 The technical scheme provided by the utility model will be described in more detail below.
[0033] Embodiment 1:
[0034] Referring to Figures 1-4 As shown in the drawing, A represents outdoor side, B represents indoor side;The pipeline wall penetration waterproof structure provided by the utility model includes pipeline body, cover pipe 1 and base 2, wherein: cover pipe 1 is sleeved on the outside of pipeline body, the gap between cover pipe 1 and pipeline body is sealed by sealing waterproof part 4;Base 2 and cover pipe 1 are integrally formed structure, base 2 is fixed to the outer periphery of cover pipe 1, wall hole 11 is formed on outer wall 10, base 2 is fixed in wall hole 11, cover pipe 1 passes through wall hole 11, cover pipe 1 and base 2 seal the gap between pipeline body and wall hole 11.
[0035] The sealing waterproof part 4 can be sealing waterproof glue, which improves the waterproof performance.
[0036] The pipeline wall-penetrating waterproof structure of the embodiment is integrally formed with the cover pipe 1 and the base 2, effectively reducing the gap between the pipeline body and the outer wall 10 structure and avoiding water seepage. When the pipeline body is the air pipe 31, the cover pipe 1 can effectively communicate with the outdoor to realize air exhaust and prevent rainwater from seeping into the indoor through the hole gap. When the pipeline body is the electrical pipe, the gap between the electrical pipe and the outer wall 10 structure is blocked by the cover pipe 1, which ensures electrical connection and reduces the possibility of water seepage, thereby improving the waterproof performance.
[0037] As an optional embodiment, as shown in Figure 1 and Figure 4 , the pipeline body of the embodiment includes the air pipe 31, and the gap between the cover pipe 1 and the air pipe 31 is blocked by the sealing waterproof part 4.
[0038] The gap between the cover pipe 1 and the air pipe 31 is blocked by a flexible waterproof material (such as sealing waterproof glue), which avoids water seepage caused by the waterproof material falling off due to the slight vibration of the air pipe 31 during use.
[0039] The thickness of the base 2 is not less than 3 mm, and the periphery is full-welded to the keel piece 6 (such as a C-shaped additional keel). A layer of anti-rust paint is applied to the weld seam for anti-rust treatment, and a layer of finish paint with the same color and material as the sandwich panel of the outer wall 10 is applied to the outside to ensure the consistency of the outer facade effect. The inside height of the cover pipe 1 is slightly higher than the outside height during welding to avoid rainwater entering along the pipeline in the summer rainy season.
[0040] As an optional embodiment, as shown in Figure 1 and Figure 4 , the cover pipe 1 is in a bent pipe structure, the air inlet section of the cover pipe 1 is sleeved outside the air pipe 31, and the air outlet of the cover pipe 1 is vertically downward.
[0041] The cover pipe is 90 degrees downward, which can effectively prevent rainwater from entering the indoor along the air pipe 31 and causing damage to the substation equipment.
[0042] As an optional embodiment, as shown in Figure 1 , the air outlet of the cover pipe 1 is fixedly provided with the insect screen 5.
[0043] The insect screen 5 is installed at the air outlet of the air pipe 31 to prevent small animals such as rats from climbing into the indoor along the air pipe 31.
[0044] The pipeline body of the embodiment is the air pipe 31, which can improve the waterproof performance of the air pipe 31 penetrating the wall and ensure the smoothness of air exhaust.
[0045] As an optional embodiment, refer to Figures 1-4 As shown in the drawings, the wall hole 11 is fixedly and sealingly provided with a decorative edge around the wall hole 11, and the decorative edge is sealingly fixed to the wall hole 11 through the sealing glue 9. The decorative edge includes an upper decorative edge 71 and a lower decorative edge 72. The bottom wall of the upper decorative edge 71 is gradually inclined downward in the direction close to the outdoor side. The top wall of the lower decorative edge 72 is gradually inclined downward in the direction close to the outdoor side.
[0046] The decorative edge around the hole of the outer wall 10 is decorated with a closing steel plate, and the closing steel plate is treated with a slope, that is, the upper decorative edge 71 and the lower decorative edge 72 are formed. The bottom wall of the upper decorative edge 71 is gradually inclined downward in the direction close to the outdoor side. The top wall of the lower decorative edge 72 is gradually inclined downward in the direction close to the outdoor side, which can guide the rainwater to quickly drain and prevent water accumulation. In addition, the upper decorative edge 71 and the lower decorative edge 72 of the wall hole 11 should be designed with a water droplet line to avoid pollution or erosion of the wall caused by rainwater flowing along the wall surface.
[0047] Embodiment 2:
[0048] The difference between this embodiment and embodiment 1 is that the pipeline body of this embodiment includes an electrical pipe, and the gap between the cover pipe 1 and the electrical pipe is blocked by the sealing waterproof part 4. The sealing waterproof part 4 can be sealing waterproof glue or a rubber ring, etc.
[0049] After the integrated cover pipe 1 and the base 2 are installed, the edge of the wall body needs to be treated with a closing edge. The decorative steel plate can be fixed on the outer wall 10 plate around the hole through rivets. The hole closing edge has a certain slope and water droplet.
[0050] The electrical pipe includes a GIS pipe 32 (as shown in Figure 2 ), and an electrical bus 33 (as shown in Figure 3 ).
[0051] As an optional embodiment, the cover pipe 1 in this embodiment is horizontally arranged, which is convenient for the GIS pipe 32 and the electrical bus 33 to pass through the cover pipe 1.
[0052] As an optional embodiment, refer to Figure 2 and Figure 3 As shown in the drawings, the upper decorative edge 71 is provided with a water droplet hole 8, and the water droplet hole 8 is arranged at intervals along the length direction of the upper decorative edge 71.
[0053] One water droplet hole 8 is arranged at every 600 mm interval (not limited to this interval) at the end of the upper decorative edge 71, which can timely drain the water seepage that breaks through the waterproof line.
[0054] Embodiment 3:
[0055] The embodiment provides an assembled building, which includes the pipeline wall-penetrating waterproof structure.
[0056] The assembled building can be an assembled steel structure building, such as an assembled steel structure substation, the cover pipe 1 and the base 2 are integrally formed, effectively reducing the gap between the pipeline body and the outer wall 10 structure, and avoiding water seepage.
[0057] In the description of the present specification, a specific feature, structure or characteristic can be combined in any one or more embodiments or examples in a suitable manner.
[0058] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Furthermore, the skilled person in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.
[0059] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A pipe wall-penetrating waterproof structure characterized by comprising: The pipeline wall-penetrating waterproof structure comprises a pipeline body, a cover pipe and a base, wherein: The cover pipe is sleeved outside the pipeline body, and the gap between the cover pipe and the pipeline body is sealed by a sealing waterproof part; The base is integrally formed with the cover pipe, the base is fixed to the outer periphery of the cover pipe, a wall hole is formed in the outer wall, the base is fixed in the wall hole, the cover pipe passes through the wall hole, and the cover pipe and the base seal the gap between the pipeline body and the wall hole; The pipeline body comprises an air pipe, and the gap between the cover pipe and the air pipe is sealed by a sealing waterproof part; The cover pipe is in a bent pipe structure, the air inlet section of the cover pipe is sleeved outside the air pipe, and the air outlet of the cover pipe is vertically arranged downward.
2. The pipeline wall bushing of claim 1, wherein, An insect screen is fixedly arranged at the air outlet of the cover pipe.
3. The pipeline wall bushing of claim 1, wherein, The pipeline body comprises an electrical pipe, and the gap between the cover pipe and the electrical pipe is sealed by a sealing waterproof part.
4. The pipeline wall bushing of claim 3, wherein, The cover pipe is horizontally arranged.
5. The pipeline wall bushing of claim 1, wherein, The pipeline wall-penetrating waterproof structure further comprises a keel part, the keel part is fixed to the outer wall, and the base is welded and fixed to the keel part.
6. The pipeline wall bushing of claim 1, wherein, A decorative edge is sealingly and fixedly arranged around the wall hole, the decorative edge comprises an upper decorative edge and a lower decorative edge, wherein: The bottom wall of the upper decorative edge is gradually inclined downward along the direction close to the outdoor side, and the top wall of the lower decorative edge is gradually inclined downward along the direction close to the outdoor side.
7. The pipeline wall bushing of claim 6, wherein, When the pipeline body is an electrical pipe, the upper decorative edge is provided with a water droplet hole, and the water droplet hole is arranged at intervals along the length direction of the upper decorative edge.
8. A building of assembled parts, characterized in that, The pipeline wall-penetrating waterproof structure comprises the pipeline wall-penetrating waterproof structure according to any one of claims 1-7.