Cantilever I-shaped steel bottom closed drainage structure
By designing the closed drainage and drainage structure at the bottom of the cantilevered I-shaped steel in construction, using "L"-shaped iron sheet, U-shaped groove and drainage pipe, the problem of water flow pollution during construction is solved, and the organized drainage and drainage of water is achieved. Beautiful protection.
Patent Information
- Application Number
- CN202420506673.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-03-15
AI Technical Summary
During the construction period, the top of the building is still in construction state, which can easily cause structural maintenance water, pump pipe cleaning sewage and rainwater to flow along the exterior wall to the display section, polluting the exterior wall paint surface layer and affecting the beauty.
A closed drainage structure at the bottom of the cantilever I-shaped steel is designed, and the water interception and organized drainage are achieved by setting up "L"-shaped iron sheets, U-shaped grooves and drainage pipes.
Effectively intercept the water flow above the model room or exterior wall facade decoration, and realize organized water dissipation through U-shaped grooves and drainage pipes to avoid contaminating the exterior wall paint surface layer and maintaining beauty.
Smart Images

Figure CN222435718U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building construction, and in particular relates to a cantilever I-beam bottom closed drainage structure. Background Art
[0002] At present, the sales office, model house and exterior wall decoration need to be completed in advance before the main structure of the building is capped and displayed to the public. However, the top of the building is still under construction, and water used for structural maintenance, sewage from pump pipe cleaning and rainwater are likely to flow along the exterior wall to the display section, polluting the exterior wall paint surface layer, affecting the exterior wall decoration and the beautiful display of the model house, so it is necessary to take effective sealing and water interception measures above the model layer and the exterior wall decoration.
[0003] The patent with publication number CN212562433U discloses a multifunctional cantilever frame hard-enclosed drainage structure, including a horizontal hard-enclosed protection component and a cantilever I-beam, the horizontal hard-enclosed protection component is located at the upper end of the cantilever I-beam extending out of the outer edge of the floor slab, and the waterproof mortar protective layer in the horizontal hard-enclosed protection component is provided with a slope toward the outer side of the floor slab at the upper end of the horizontal part of the horizontal hard-enclosed protection component, which can effectively prevent rainwater from flowing into the model house through the external scaffolding. However, this structure cannot achieve organized drainage and has a high cost. Utility Model Content
[0004] In view of this, the utility model provides a cantilevered I-beam bottom closed drainage structure, which can lead the sewage intercepted on the floor and the external scaffolding to the balcony permanent downpipe, realizing organized drainage with simple structure and low cost.
[0005] The utility model is realized by the following technical solutions:
[0006] A cantilevered I-beam bottom closed drainage structure, using the cantilevered I-beam and balcony downpipe in the building structure; the cantilevered I-beam is cantilevered on the outer edge of the structure;
[0007] The drainage structure comprises: an iron sheet, a support frame assembly, a U-shaped groove and a drainage pipe;
[0008] The U-shaped groove is arranged around the outer edge of the structure of the building. The U-shaped groove is composed of a horizontal plate and two vertical plates. The opening of the U-shaped groove faces upward, and one vertical plate is sealed and connected to the outer edge of the structure.
[0009] The support frame assembly is fixedly arranged at the bottom of the cantilevered I-beam, and the iron sheet half-surrounds the support frame assembly and is fixedly arranged, and the iron sheet is in an "L" shape, including a vertical part and a horizontal part, the end of the vertical part is fixedly connected to the end of the cantilevered I-beam, and the end of the horizontal part is fixedly connected to the top of another vertical plate of the U-shaped groove;
[0010] A corresponding drain port is arranged on the horizontal plate of the U-shaped groove at a corner position near the balcony, one end of the drain pipe is sealedly connected to the drain port, and the other end is connected to the balcony downpipe;
[0011] Water enters the U-shaped groove from the horizontal part of the iron sheet, and then falls into the balcony downpipe through the drain pipe, thus achieving water drainage.
[0012] Furthermore, the vertical portion of the U-shaped groove is fixedly connected to the outer edge of the structure by using nails or expansion bolts, and a sealant is provided between the upper end of the vertical portion and the outer edge of the structure.
[0013] Furthermore, the inner dimensions of the U-shaped groove are: 100 mm wide and 150 mm deep.
[0014] Furthermore, the support frame assembly is a frame structure formed by welding a number of square tubes; the top of the support frame assembly is welded to the cantilevered I-beam; the inner side is fixedly connected to the outer edge of the structure; the bottom of the support frame assembly is provided with a slope, and the outer end is higher than the inner end, so that the horizontal part of the iron sheet has a corresponding slope.
[0015] Furthermore, the slope is 5%.
[0016] Furthermore, a water stop joint is provided at the drain outlet.
[0017] Furthermore, a floor drain is provided at the drain outlet.
[0018] Furthermore, the overlapping seams between the iron sheets are along the inside-outside direction.
[0019] Beneficial effects:
[0020] (1) The utility model can intercept the maintenance water, pump pipe cleaning sewage and rainwater above the model house or the exterior wall facade decoration by setting an "L"-shaped iron sheet. By setting a U-shaped groove and utilizing the height difference between the horizontal plate of the U-shaped groove and the horizontal part of the iron sheet, water can fall into the U-shaped groove. Since the U-shaped groove is connected to the balcony downpipe through the drainage pipe, the water can be drained in an organized manner.
[0021] (2) A sealant is provided between the upper end of the vertical portion of the U-shaped groove of the utility model and the outer edge of the structure to prevent water from flowing along the joint between the U-shaped groove and the outer edge of the structure to the exterior wall facade decoration, thereby affecting the appearance.
[0022] (3) The bottom slope of the support frame assembly of the utility model is 5%, and the outer end is higher than the inner end, so that the horizontal part of the iron sheet has a slope of 5%, which facilitates the water on the iron sheet to flow into the U-shaped groove.
[0023] (4) A water stop joint is provided at the drain outlet of the utility model to achieve sealing between the drain pipe and the drain outlet.
[0024] (5) The overlapping seams between the iron sheets of the utility model are along the inside-outside direction, which facilitates water to flow into the U-shaped groove along the overlapping seams. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 A top view of a cantilevered I-beam bottom-enclosed drainage structure;
[0026] Figure 2 for Figure 1 AA section view;
[0027] Figure 3 It is a drainage diagram;
[0028] Figure 4 for Figure 1 BB cross-sectional view;
[0029] Among them, 1-cantilevered I-beam, 2-outer edge of structure, 3-square tube, 4-iron sheet, 5-U-shaped groove, 6-horizontal rod, 7-vertical rod, 8-drainage pipe, 9-balcony downpipe, 10-balcony structural beam. DETAILED DESCRIPTION
[0030] The present invention is described in detail below with reference to the accompanying drawings and embodiments.
[0031] This embodiment provides a cantilever I-beam bottom closed drainage structure, which utilizes the cantilever I-beam 1 and balcony downpipe 9 in the building structure, wherein the cantilever I-beam 1 is cantilevered at the outer edge 2 of the structure;
[0032] See attached Figure 1-3 The drainage structure includes: an iron sheet 4, a support frame assembly, a U-shaped groove 5 and a drainage pipe 8;
[0033] The U-shaped groove 5 is arranged around the outer edge 2 of the structure of the building. The U-shaped groove 5 is composed of a horizontal plate and two vertical plates. The opening of the U-shaped groove 5 faces upward, and one vertical plate is sealed and connected to the outer edge 2 of the structure.
[0034] The support frame assembly is fixedly arranged at the bottom of the cantilevered I-beam 1, and the iron sheet 4 half surrounds the support frame assembly and is fixedly arranged, and the iron sheet 4 is "L"-shaped, including a vertical part and a horizontal part, the end of the vertical part is fixedly connected to the end of the cantilevered I-beam 1, and the end of the horizontal part is fixedly connected to the top of another vertical plate of the U-shaped groove 5;
[0035] The horizontal plate of the U-shaped groove 5 is located at the corner position near the balcony (i.e. Figure 3 A corresponding drain outlet is provided at the corner position formed by the balcony structural beam 10 and the outer edge of the structure 2, one end of the drain pipe 8 is sealedly connected to the drain outlet, and the other end is connected to the balcony downpipe 9;
[0036] Water enters the U-shaped groove 5 from the horizontal part of the iron sheet 4, and then falls into the balcony downpipe 9 through the drainage pipe 8, thereby achieving water drainage.
[0037] This embodiment can intercept the maintenance water, pump pipe cleaning sewage and rainwater above the model house or the exterior wall facade decoration by setting an "L"-shaped iron sheet 4, and can make water fall into the U-shaped groove 5 by utilizing the height difference between the horizontal plate of the U-shaped groove 5 and the horizontal part of the iron sheet 4. Since the U-shaped groove 5 is connected with the balcony downpipe 9 through the drain pipe 8, the water can be drained in an organized manner.
[0038] In a specific embodiment, the vertical part of the U-shaped groove 5 is fixedly connected to the outer edge of the structure 2 by nails or expansion bolts, and a sealant or weather-resistant glue is provided between the upper end of the vertical part and the outer edge of the structure 2, so as to achieve a sealed connection between a vertical plate of the U-shaped groove 5 and the outer edge of the structure 2, thereby preventing water from flowing along the joint between the U-shaped groove 5 and the outer edge of the structure 2 to the exterior wall facade decoration, thereby affecting the appearance;
[0039] The inner dimensions of the U-shaped groove 5 are: 100 mm wide and 150 mm deep;
[0040] In a specific embodiment, see the attached Figure 4 The support frame assembly is a frame structure welded by a number of square tubes 3; the top of the support frame assembly is welded to the cantilever I-beam 1; the inner side is fixedly connected to the outer edge 2 of the structure; the slope of the bottom of the support frame assembly is 5%, and the outer end is higher than the inner end, so that the horizontal part of the iron sheet 4 has a slope of 5%, which facilitates the water on the iron sheet 4 to flow into the U-shaped groove 5;
[0041] In a specific embodiment, a water stop joint is provided at the drain outlet to achieve sealing between the drain pipe 8 and the drain outlet; a floor drain is also provided at the water stop joint.
[0042] In a specific embodiment, an external scaffold is provided on the top of the cantilevered I-beam 1, see the attached Figure 2 The external scaffolding includes a plurality of horizontal rods 6 and vertical rods 7. Water on the external scaffolding can also fall into the drainage structure to achieve organized drainage.
[0043] In a specific embodiment, the overlapping seams between the iron sheets 4 are in the inner and outer directions, and the overlapping seams are covered with the iron sheets 4;
[0044] In a specific embodiment, the iron sheet 4 is a galvanized iron sheet, and the thickness of the galvanized iron sheet is 1.0 mm; the material of the square tube 3 is steel;
[0045] Installation method:
[0046] Step 1: Pop out a horizontal line around the outer edge 2 of the structure at a position 200 mm away from the bottom;
[0047] Step 2: Fix the support frame assembly to the cantilevered I-beam 1 and the outer edge of the structure 2. Specifically:
[0048] Weld several square tubes 3 to the cantilevered I-beam 1, fix several square tubes 3 on the outer edge 2 of the structure along the horizontal line of the outer edge 2 of the structure, and weld several square tubes 3 and square tubes 3 to form a support frame assembly fixed on the cantilevered I-beam 1 and the outer edge 2 of the structure; the square tubes 3 at the bottom of the support frame assembly are uniformly sloped inwardly (toward the outer edge 2 of the structure) by 5%;
[0049] Step 3: Install the U-shaped groove 5 around the outer edge 2 of the structure. Specifically:
[0050] Use expansion bolts or nails to fix the U-shaped groove 5 on the outer edge 2 of the structure, and set sealant or weather-resistant glue;
[0051] Step 4: Overlap the iron sheet 4. Specifically:
[0052] The overlapping seams between the iron sheets 4 are along the inner and outer directions (i.e. along the slope), and the overlapping seams are covered with iron sheets 4;
[0053] Step 5: Set up the drainage pipe 8. Specifically:
[0054] A drain outlet is arranged on the horizontal plate at the bottom of the U-shaped groove 5, and the drain outlet is located at the corner near the balcony, and a water stop joint and a floor drain are arranged at the drain outlet; one end of the drain pipe 8 is connected to the water stop joint, and the other end is connected to the balcony downpipe 9 to realize organized drainage.
[0055] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A cantilevered I-beam bottom closed drainage structure, using the cantilevered I-beam and balcony downpipe in the building structure; The cantilevered I-beam is cantilevered on the outer edge of the structure; It is characterized in that The drainage structure comprises: an iron sheet, a support frame assembly, a U-shaped groove and a drainage pipe; The U-shaped groove is arranged around the outer edge of the structure of the building. The U-shaped groove is composed of a horizontal plate and two vertical plates. The opening of the U-shaped groove faces upward, and one vertical plate is sealed and connected to the outer edge of the structure. The support frame assembly is fixedly arranged at the bottom of the cantilevered I-beam, and the iron sheet half-surrounds the support frame assembly and is fixedly arranged, and the iron sheet is in an "L" shape, including a vertical part and a horizontal part, the end of the vertical part is fixedly connected to the end of the cantilevered I-beam, and the end of the horizontal part is fixedly connected to the top of another vertical plate of the U-shaped groove; A corresponding drain port is arranged on the horizontal plate of the U-shaped groove at a corner position near the balcony, one end of the drain pipe is sealedly connected to the drain port, and the other end is connected to the balcony downpipe; Water enters the U-shaped groove from the horizontal part of the iron sheet, and then falls into the balcony downpipe through the drain pipe, thus achieving water drainage.
2. A cantilever I-beam bottom closed drainage structure as claimed in claim 1, characterized in that: The vertical part of the U-shaped groove is fixedly connected to the outer edge of the structure by nails or expansion bolts, and a sealant is arranged between the upper end of the vertical part and the outer edge of the structure.
3. A cantilever I-beam bottom closed drainage structure as claimed in claim 1, characterized in that: The inner dimensions of the U-shaped groove are: 100mm wide and 150mm deep.
4. A cantilever I-beam bottom closed drainage structure as claimed in claim 1, characterized in that: The support frame assembly is a frame structure formed by welding several square tubes; the top of the support frame assembly is welded to the cantilever I-beam; the inner side is fixedly connected to the outer edge of the structure; the bottom of the support frame assembly is provided with a slope, and the outer end is higher than the inner end, so that the horizontal part of the iron sheet has a corresponding slope.
5. A cantilever I-beam bottom closed drainage structure as claimed in claim 4, characterized in that: The slope is 5%.
6. A cantilever I-beam bottom closed drainage structure as claimed in claim 1, characterized in that: A water stop joint is provided at the drain outlet.
7. A cantilever I-beam bottom closed drainage structure as claimed in any one of claims 1 to 6, characterized in that: A floor drain is provided at the drain outlet.
8. A cantilever I-beam bottom closed drainage structure as claimed in any one of claims 1 to 6, characterized in that: The lap joints between the iron sheets are along the inside-outside direction.
Citation Information
Patent Citations
Hard-closed drainage structure of multifunctional cantilever frame
CN212562433U