Waterproof structure for outdoor pipe of built basement outer wall
By setting up a steel concrete body and a cement mortar filling layer on the exterior wall of the built basement, and setting up a waterproof casing in the second hole of the steel concrete body, the water leakage hazards and construction complexity problems when the hole is drilled and passed through the pipes outside the house are solved. , achieving efficient and economical waterproofing effect.
Patent Information
- Application Number
- CN202420314585.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-20
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-02-20
AI Technical Summary
When drilling holes on the exterior wall of the built basement through the outbound pipes, the existing technology has problems such as water leakage, complex construction, and high costs.
A combined structure of steel concrete body, cement mortar filling layer and waterproof casing is connected to the built basement exterior wall through planting ribs, the first hole is set and the cement mortar filling layer is filled. The waterproof casing is only installed on the newly installed steel concrete The inner wall of the second hole of the body.
It achieves waterproofing effect without water leakage risks, simplifies the construction process, reduces costs, and integrates the new and old structures.
Smart Images
Figure CN222513210U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building structures, in particular to a waterproof structure for an outlet pipe of an outer wall of a built basement. Background Art
[0002] Once the basement exterior wall of a building seeps or leaks, it is extremely difficult to detect and repair the leak. Therefore, in the design and construction stages, it is necessary not only to deal with the overall waterproofing problem, but also to pay attention to key waterproofing nodes. The point where the household pipe passes through the exterior wall of the basement is one of the important nodes. The conventional practice in the project is: during the stage of tying steel bars and pouring concrete on the exterior wall of the basement, waterproof casings are pre-buried simultaneously as a passage for the household pipe to pass through the exterior wall of the basement. The designers draw the pre-buried drawings of the waterproof casings according to the specifications, quantity, location, and elevation requirements of the household pipes, and the construction party strictly follows the drawings to carry out the construction. This ensures reliable waterproof sealing between the waterproof casing and the wall, and between the casing and the household pipe. To avoid leakage, after the construction of the exterior wall of the basement is completed, it is not advisable to rework the pre-buried waterproof casings (adding new ones, expanding specifications, adjusting positions and elevations, etc.).
[0003] However, in engineering construction, it is inevitable to drill a hole in the outer wall of an existing basement to pass through the outlet pipe due to many reasons such as design changes or errors, construction deviations or omissions, too long time interval between civil engineering and installation construction, changes in external municipal connection conditions, and renovation of existing buildings. At present, there are three commonly used technologies (the hole size is based on the nominal diameter of the outlet pipe of DN150 and the material is galvanized steel pipe, that is, D = 159 mm, D4 = 330 mm): (1) Existing technology (I) drill a hole 100 mm larger than the waterproof casing wing ring 4 (that is, the diameter is 430 mm) on the outer wall 1 of the existing basement, weld the broken steel bars in the hole, fill the space between the waterproof casing 3 and the hole with plain concrete 9, and cover it with a waterproof layer 8 (such as Figures 1-2 As shown); however, in this design, the newly opened hole is relatively large in size, and the steel bar in the hole is welded after the steel bar is broken, which affects the original structure; although the hole is filled with plain concrete 9, it cannot be seamlessly fitted with the original steel concrete, and there is still a risk of leakage. (2) Prior art (II) According to the required tolerance of the outlet pipe 2 (lowest elevation, largest pipe diameter), a spare waterproof casing 3' is pre-buried, and the two ends that are abandoned after completion are blocked with steel plates 10, and the inside is filled with plain concrete 9 (as shown in FIG. Figures 3-4 As shown); however, the amount of spare waterproof casing 3' cannot be determined, and if the amount is insufficient, holes will still need to be drilled later, and too much will cause a waste of investment; the waterproof sealing durability of the redundant waterproof casing 3 is poor, and the rust of the steel plate 10 and the cracking of the plain concrete 9 in the later stage are also likely to cause leakage hazards. (3) Prior art (three) A square hole 200 mm larger than the waterproof casing wing ring 4 is drilled on the outer wall of the built basement, that is, 53mm0*530mm. The steel bars in the square hole are repaired by welding after being broken, and a waterproof layer 8 (such as Figures 5-6The newly opened hole is large in size, and welding after the broken reinforcement affects the original structure; the construction process is complicated and requires high construction technology; the material and labor costs are high.
[0004] Therefore, it is still crucial to provide a structure that is simple in structure and convenient for construction. Utility Model Content
[0005] In order to solve the above problems, the purpose of the utility model is to provide a waterproof structure for the outlet pipe of the outer wall of a built basement.
[0006] The purpose of the utility model can be achieved through the following technical solutions:
[0007] The utility model provides a waterproof structure for an outlet pipe of an existing basement exterior wall, the waterproof structure comprising a steel concrete body, a cement mortar filling layer and a waterproof casing;
[0008] The steel concrete body is arranged on the outer surface of the outer wall of the built basement, connected to the outer wall of the built basement through embedded reinforcement, and surrounds the outlet pipe outside the outer wall of the built basement;
[0009] The waterproof sleeve is sleeved on the outer surface of the outlet pipe and connected to the steel concrete body;
[0010] The outer wall of the built basement is provided with a first hole along the outer surface of the outlet pipe, and the first hole is filled with a cement mortar filling layer.
[0011] In one embodiment of the utility model, the thickness of the cement mortar filling layer is 20mm-30mm (that is, the outer wall of the built basement is drilled and filled with the cement mortar filling layer); that is, in the outer wall of the built basement, the setting of the first hole size does not require the reinforcement of the outer wall of the built basement, and does not affect the original structure of the outer wall of the built basement.
[0012] In the utility model, the arrangement of embedded reinforcement makes the new and old structures seamlessly integrated without the hidden danger of water leakage; the project is simple and easy to construct.
[0013] In one embodiment of the present utility model, a second hole having the same axis as the first hole is arranged at the center of the steel concrete body, and the waterproof sleeve is arranged on the inner wall of the second hole.
[0014] In the utility model, the waterproof sleeve is only arranged on the inner wall of the second hole, which can save the cost.
[0015] In one embodiment of the utility model, the inner diameter of the waterproof sleeve is larger than the outer diameter of the outlet pipe.
[0016] In one embodiment of the utility model, a waterproof sleeve wing ring is provided on the side of the waterproof sleeve away from the outlet pipe, and the waterproof sleeve wing ring is embedded in the steel concrete body.
[0017] In one embodiment of the present invention, the outer diameter of the waterproof sleeve is greater than the inner diameter of the first hole.
[0018] In one embodiment of the present invention, the inner diameter of the waterproof sleeve is smaller than the inner diameter of the first hole.
[0019] In one embodiment of the present invention, the outer diameter of the reinforced concrete body is 530 mm×530 mm.
[0020] The outer surface of the steel concrete body is provided with a waterproof layer.
[0021] In one embodiment of the utility model, a hemp layer is provided between the waterproof casing and the outlet pipe; and the thickness of the hemp layer in an uncompressed state is greater than the distance between the inner surface of the waterproof casing and the outer surface of the adjacent outlet pipe.
[0022] In the utility model, the provision of the oil hemp layer can avoid the hidden danger of water leakage.
[0023] Compared with the prior art, the utility model has the following beneficial effects:
[0024] In the waterproof structure of the outlet pipe of the exterior wall of an existing basement, the waterproof sleeve is only arranged on the inner wall of the second hole of the newly arranged steel concrete body, which can save construction cost; the setting of the first hole (small size) does not need to break the reinforcement treatment of the exterior wall of the existing basement, and does not affect the original structure of the exterior wall of the existing basement. The setting of the embedded reinforcement makes the new and old structures seamlessly integrated without the hidden danger of water leakage; the project is simple and easy to construct. The waterproof structure of the outlet pipe of the exterior wall of an existing basement solves the leakage problem caused by drilling holes and inserting pipes on the exterior wall of the existing basement from the design level, and provides effective technical support for making up for the missing outlet pipes in new buildings and adding new outlet pipes in the renovation of old buildings. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic diagram of waterproofing treatment of prior art (I);
[0026] Figure 2 for Figure 1 Middle AA section;
[0027] Figure 3 It is a top view of the waterproof treatment of the prior art (II);
[0028] Figure 4 It is a cross-sectional view of the waterproof treatment of the prior art (II);
[0029] Figure 5 It is a schematic diagram of waterproofing treatment of prior art (III);
[0030] Figure 6 for Figure 5 Middle AA section;
[0031] Figure 7 This is a schematic diagram of a waterproof structure for an outlet pipe of an existing basement exterior wall according to the utility model;
[0032] Figure 8 for Figure 7 Middle AA section;
[0033] Numbers in the figure: 1. Exterior wall of built basement; 2. Outlet pipe; 3. Waterproof casing; 3', spare waterproof casing; 4. Wing ring of waterproof casing; 5. Oil layer; 6. Embedded reinforcement; 7. Steel concrete body; 8. Waterproof layer; 9. Plain concrete; 10. Steel plate; 11. Grouting pipe; 12. Waterstop strip; 13. Cement mortar filling layer; D. Outer diameter of outlet pipe; D4. Outer diameter of waterproof casing wing ring; L. Thickness of exterior wall of built basement; Unit: mm. DETAILED DESCRIPTION
[0034] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.
[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0037] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0038] Example 1
[0039] This embodiment provides a waterproof structure for the outlet pipe of the outer wall of a built basement, such as Figure 7-8 As shown, the waterproof structure includes a steel concrete body 7, a cement mortar filling layer 13 and a waterproof casing 3; the steel concrete body 7 is arranged on the outer surface of the existing basement outer wall 1, connected to the existing basement outer wall 1 (the thickness of the existing basement outer wall is L) through the embedded steel bar 6, and surrounds the outlet pipe 2 (the outer diameter of the outlet pipe is D) outside the existing basement outer wall 1; the waterproof casing 3 is sleeved on the outer surface of the outlet pipe 2 and connected to the steel concrete body 7; the existing basement outer wall 1 is provided with a first hole along the outer surface of the outlet pipe 2, and the first hole is filled with a cement mortar filling layer 13.
[0040] Furthermore, the thickness of the cement mortar filling layer 13 is 20mm-30mm. Preferably, the thickness of the cement mortar filling layer 13 is 25mm (that is, the built basement exterior wall 1 is drilled and filled with the cement mortar filling layer 13); that is, in the built basement exterior wall 1, the setting of the first hole size does not require the reinforcement of the built basement exterior wall 1, and does not affect the original structure of the built basement exterior wall 1. The setting of the embedded reinforcement 6 makes the new and old structures seamlessly integrated without the risk of water leakage; the project is simple and easy to construct. The outer diameter of the steel concrete body 7 is 530mm×530mm (such as Figure 7 As shown), a waterproof layer 8 is provided on the outer surface of the steel concrete body 7.
[0041] Furthermore, a second hole identical to the central axis of the first hole is provided at the center of the steel concrete body 7, and the waterproof sleeve 3 is provided on the inner wall of the second hole; the waterproof sleeve 3 is only provided on the inner wall of the second hole, which can save construction cost; the inner diameter of the waterproof sleeve 3 is larger than the outer diameter of the outlet pipe 2; a waterproof sleeve wing ring 4 (the outer diameter of the waterproof sleeve wing ring is D) is provided on the side of the waterproof sleeve 3 away from the outlet pipe 2, and the waterproof sleeve wing ring 4 is embedded in the steel concrete body 7; the outer diameter of the waterproof sleeve 3 is larger than the inner diameter of the first hole, and the inner diameter of the waterproof sleeve 3 is smaller than the inner diameter of the first hole.
[0042] Furthermore, a hemp layer 5 is provided between the waterproof sleeve 3 and the outlet pipe 2, and the provision of the hemp layer 5 can avoid the hidden danger of water leakage; and the thickness of the hemp layer 5 in the uncompressed state is greater than the distance between the inner surface of the waterproof sleeve 3 and the outer surface of the adjacent outlet pipe 2.
[0043] The utility model is a waterproof structure for the outlet pipe of the existing basement outer wall. The waterproof sleeve 3 is only arranged on the inner wall of the second hole of the newly arranged steel concrete body 7, which can save the cost; the setting of the first hole (cement mortar filling layer 13) is only 20mm-30mm, and there is no need to break the reinforcement of the existing basement outer wall 1, which does not affect the original structure of the existing basement outer wall 1. The setting of the embedded reinforcement 6 makes the new and old structures (the existing basement outer wall 1 and the steel concrete body 7) seamlessly integrated without the hidden danger of water leakage; the project is simple and easy to construct.
[0044] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the interpretation of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.
Claims
1. A waterproof structure for an outlet pipe on the outer wall of an existing basement, characterized in that: The waterproof structure comprises a steel concrete body (7), a cement mortar filling layer (13) and a waterproof casing (3); The steel concrete body (7) is arranged on the outer surface of the existing basement outer wall (1), connected to the existing basement outer wall (1) through embedded reinforcement (6), and surrounds the outlet pipe (2) outside the existing basement outer wall (1); The waterproof sleeve (3) is sleeved on the outer surface of the outlet pipe (2) and connected to the steel concrete body (7); The built basement outer wall (1) is provided with a first hole along the outer surface of the outlet pipe (2), and the first hole is filled with a cement mortar filling layer (13).
2. A waterproof structure for an outlet pipe of an existing basement exterior wall according to claim 1, characterized in that: The thickness of the cement mortar filling layer (13) is 20 mm-30 mm.
3. The waterproof structure for the outlet pipe of the outer wall of a built basement according to claim 1 is characterized in that: A second hole having the same central axis as the first hole is arranged at the center of the steel concrete body (7), and the waterproof sleeve (3) is arranged on the inner wall of the second hole.
4. A waterproof structure for an outlet pipe of an existing basement exterior wall according to claim 3, characterized in that: The inner diameter of the waterproof sleeve (3) is greater than the outer diameter of the outlet pipe (2).
5. A waterproof structure for an outlet pipe of an existing basement exterior wall according to claim 4, characterized in that: A hemp layer (5) is provided between the waterproof casing (3) and the outlet pipe (2).
6. A waterproof structure for an outlet pipe of an existing basement exterior wall according to claim 5, characterized in that: A waterproof sleeve wing ring (4) is provided on the side of the waterproof sleeve (3) away from the outlet pipe (2), and the waterproof sleeve wing ring (4) is embedded in the steel concrete body (7).
7. The waterproof structure for the outlet pipe of the outer wall of a built basement according to claim 1, characterized in that: The outer diameter of the waterproof sleeve (3) is greater than the inner diameter of the first hole.
8. The waterproof structure for the outlet pipe of the outer wall of a built basement according to claim 7, characterized in that: The inner diameter of the waterproof sleeve (3) is smaller than the inner diameter of the first hole.
9. The waterproof structure for the outlet pipe of the outer wall of a built basement according to claim 1, characterized in that: The outer surface of the steel concrete body (7) is provided with a waterproof layer (8).
10. The waterproof structure for the outlet pipe of the outer wall of an existing basement according to claim 1, characterized in that: In an uncompressed state, the thickness of the oily hemp layer (5) is greater than the distance between the inner surface of the waterproof casing (3) and the outer surface of the adjacent outlet pipe (2).