Cantilever eave

Abstract

The utility model relates to the technical field of civil construction engineering, and discloses a cantilever eave which comprises a wall body, a main beam, a secondary beam and a floor slab. The multiple main beams are arranged on the inner side and the outer side of the wall in a penetrating mode, and the multiple main beams are arranged around the wall at intervals in the circumferential direction. The secondary beams are annularly arranged on the periphery of the wall body at intervals and are connected with the main beams respectively; the floor slabs are annularly arranged on the periphery of the wall, the inner circumferential sides of the floor slabs are connected with the outer side of the wall body, the outer circumferential sides of the floor slabs are connected with the bottoms of the secondary beams, the floor slabs are connected with the side faces of the main beams respectively, drainage ditches are arranged along the inner circumferential sides of the top faces of the floor slabs, intervals are reserved between the bottom faces of the main beams and the bottom faces of the drainage ditches, and drainage openings communicated with the drainage ditches are formed in the bottom faces of the floor slabs; the drainage pipe is arranged below the floor, and one end of the drainage pipe is communicated with the drainage port; according to the overhanging eave, the load of the overhanging structure is effectively reduced, and meanwhile the using amount of drainage pipe materials is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering, and more specifically to a cantilevered eaves. Background Art

[0002] Rainwater harvesting has become one of the important means to solve water resource shortage, cope with urbanization challenges and adapt to climate change. At the same time, the rainwater harvesting and reuse on the roof is also an important part of the new urban planning concept - the sponge city concept. By comprehensively applying various technologies and measures, the rainwater harvesting on the roof not only helps to improve the urban environment, but also promotes the sustainable utilization and development of water resources.

[0003] The existing cantilevered eaves usually set a whole concrete cantilever floor slab penetrating the inner and outer sides of the wall, and set a sump at the end of the outer side of the cantilever floor slab far from the wall, and then lay a drain pipe at the bottom of the cantilever floor slab. After the rainwater converges through the sump, it is drained or collected through the drain pipe.

[0004] Based on the above structure, when the cantilever floor slab needs to extend longer, the load of the cantilever structure will increase, which is not conducive to stability and safety; in addition, laying the drain pipe at the bottom of the cantilever floor slab has a long laying distance, which will increase the material usage and cause waste. Summary of the Utility Model

[0005] The purpose of this application is to provide a cantilever beam eaves, which can reduce the self-weight of the concrete of the cantilever part of the eaves, and can drain rainwater safely and efficiently, and increase the drainage capacity of the cantilever beam eaves.

[0006] To achieve the above purpose, the cantilever beam structure adopted in this application includes: a wall, a main beam, a secondary beam, a floor slab and a drain pipe;

[0007] There are multiple main beams, the main beams penetrate the inner and outer sides of the wall, and the multiple main beams are arranged at intervals circumferentially around the wall;

[0008] The secondary beams are arranged at intervals around the outer circumference of the wall, and the secondary beams are respectively connected to each main beam;

[0009] The floor slab is arranged around the outer circumference of the wall, the inner circumferential side of the floor slab is connected to the outer side of the wall, the outer circumferential side of the floor slab is connected to the bottom of the secondary beam, and the floor slab is respectively connected to the side surfaces of each main beam. A drainage ditch is arranged along the inner circumferential side of the top surface of the floor slab, there is a gap between the bottom surface of the main beam and the bottom surface of the drainage ditch, and a drainage port communicating with the drainage ditch is arranged on the bottom surface of the floor slab;

[0010] The drain pipe is arranged below the floor slab, and one end of the drain pipe is communicated with the drainage port.

[0011] As a preferred technical solution, the part of the main beam located outside the wall is defined as the cantilever part of the main beam. The side surface of the cantilever part of the main beam is trapezoidal, and the cross-sectional area of the cantilever part of the main beam gradually decreases from inside to outside.

[0012] As a preferred technical solution, the floor slab includes at least two step parts arranged in sequence from inside to outside. A connecting part is connected between two adjacent step parts. The top surface heights of at least two step parts gradually increase from inside to outside. The step part located on the innermost side is connected to the outer side of the wall, and the step part located on the outermost side is connected to the bottom of the secondary beam;

[0013] The drainage ditch is arranged on the step part located on the innermost side.

[0014] As a preferred technical solution, except for the step part located on the innermost side, the top surfaces of the remaining step parts are gradually inclined downward from outside to inside.

[0015] As a preferred technical solution, the drain pipe penetrates through the wall, and the other end of the drain pipe is arranged inside the wall.

[0016] As a preferred technical solution, it further includes a siphon rainwater hopper. The siphon rainwater hopper is arranged in the drainage ditch and is connected to the drain outlet.

[0017] As a preferred technical solution, at least part of the main beam protrudes outward from the outer side of the secondary beam to form a protruding part.

[0018] As a preferred technical solution, it further includes a decorative board. The decorative board is erected on the protruding part and covers the outer periphery of the lower side of the floor slab and the secondary beam.

[0019] As a preferred technical solution, the top surface of the protruding part is gradually inclined downward from outside to inside.

[0020] As a preferred technical solution, the wall includes a main body and a ring beam. The main beam penetrates through the inner and outer sides of the main body, and the inner peripheral side of the floor slab is connected to the outer side of the ring beam.

[0021] A cantilevered eaves in the present application has multiple main beams passing through the inner and outer sides of a wall and arranged at circumferential intervals around the wall. Secondary beams are arranged at intervals around the outer periphery of the wall and are respectively connected to each main beam. Further, a floor slab is arranged around the outer periphery of the wall. The inner peripheral side of the floor slab is connected to the outer side of the wall, and the outer peripheral side is connected to the bottom of the secondary beams. Moreover, the floor slab is respectively connected to the sides of each main beam. A drainage ditch is arranged along the inner peripheral side of the top surface of the floor slab. There is a gap between the bottom surface of the main beam and the bottom surface of the drainage ditch. Drainage ports communicating with the drainage ditch are arranged on the bottom surface of the floor slab. A drain pipe is arranged below the floor slab. One end of the drain pipe is connected to the drainage port. After rainwater converges in the drainage ditch, it is drained or collected through the drain pipe. Based on the above structure, the load of the cantilever structure is greatly reduced. When the cantilevered eaves needs to extend a long distance, the safety and stability of the cantilever structure can still be ensured. In addition, the drainage ditch is arranged on the inner peripheral side of the top surface of the floor slab, and drainage ports are arranged on the bottom surface of the floor slab and connected thereto. The drainage ports are connected to the drain pipes arranged below the floor slab, reducing the laying length of the drain pipes and saving materials. Brief Description of the Drawings

[0022] The following further describes the present application in detail with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be regarded as a limitation on the scope of the present application. In addition, unless otherwise specified, the drawings are only intended to conceptually represent the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0023] Figure 1 It is a schematic structural diagram of the present utility model;

[0024] Figure 2 It is a schematic diagram of a part of the structure of the present utility model;

[0025] Wherein: 1, wall; 11, main body; 12, ring beam; 2, main beam; 21, cantilever part; 22, protruding part; 3, secondary beam; 4, floor slab; 41, step part; 411, drainage ditch; 412, drain pipe; 42, connecting part; 5, decorative board. Detailed Description of the Embodiment

[0026] The embodiments of the present utility model are described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation on the present utility model.

[0027] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, in the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0028] Please refer to Figure 1-2 , a cantilevered eaves provided by an embodiment of the present application, comprising: a wall 1, main beams 2, secondary beams 3, a floor slab 4, and a drain pipe 412; a plurality of the main beams 2 are provided, the main beams 2 penetrate through the inner and outer sides of the wall 1, and the plurality of main beams 2 are circumferentially and spaced apart around the wall 1; the secondary beams 3 are circumferentially and spaced around the outer periphery of the wall 1, and the secondary beams 3 are respectively connected to the main beams 2; the floor slab 4 is circumferentially arranged around the outer periphery of the wall 1, the inner peripheral side of the floor slab 4 is connected to the outer side of the wall 1, the outer peripheral side of the floor slab 4 is connected to the bottom of the secondary beams 3, and the floor slab 4 is respectively connected to the sides of the main beams 2. A drain groove 411 is provided along the inner peripheral side of the top surface of the floor slab 4, and there is a gap between the bottom surface of the main beam 2 and the bottom surface of the drain groove 411. A drain opening (not shown in the figure) communicating with the drain groove 411 is provided on the bottom surface of the floor slab 4; the drain pipe 412 is arranged below the floor slab 4, and one end of the drain pipe 412 is communicated with the drain opening.

[0029] In this embodiment, the main beam 2 penetrates through the wall, and the secondary beam 3 is arranged outside the wall to connect two adjacent main beams 2. In addition, the floor slab 4 is provided to connect the wall 1, the main beam 2, and the secondary beam 3. The drain groove 411 is arranged at the innermost side of the floor slab 4. This arrangement greatly reduces the load of the cantilever structure; a drain opening is opened in the drain groove 411, and the drain opening is communicated with the drain pipe 412 below the floor slab 4. When the rainwater on the cantilevered eaves converges in the drain groove 411, the rainwater can flow into the drain pipe 412 below through the drain opening to achieve rainwater discharge or collection. Moreover, the drain pipe 412 is laid downward along the wall 1 from the drain opening, and the laying length is short, saving materials.

[0030] Further, the part of the main beam 2 located outside the wall 1 is defined as the cantilever part 21 of the main beam 2. The side surface of the cantilever part 21 of the main beam 2 is trapezoidal, and the cross-sectional area of the cantilever part 21 of the main beam 2 gradually decreases from the inside to the outside. The cross-section of the cantilever part 21 is set to be small on the outside and large on the inside, which can reduce the load of this part.

[0031] Further, the floor slab 4 includes at least two stepped portions 41 arranged in sequence from inside to outside. A connecting portion 42 is connected between two adjacent stepped portions 41. The top surface heights of the at least two stepped portions 41 gradually increase from inside to outside. The stepped portion 41 located at the innermost side is connected to the outer side of the wall 1, and the stepped portion 41 located at the outermost side is connected to the bottom of the secondary beam 3; the drainage ditch 411 is arranged on the stepped portion 41 located at the innermost side. The heights from the innermost stepped portion 41 to the outermost stepped portion 41 increase in sequence, so that rainwater can flow along the outermost stepped portion 41 into the drainage ditch 411 inside the innermost stepped portion 41.

[0032] Further, except for the stepped portion 41 located at the innermost side, the top surfaces of the remaining stepped portions 41 are gradually inclined downward from outside to inside, which is beneficial to accelerating the flow of rainwater to the innermost stepped portion 41 and increasing the drainage speed.

[0033] Further, the drain pipe 412 penetrates through the wall 1, and the other end of the drain pipe 412 is arranged inside the wall 1. The drain pipe 412 is arranged inside the wall 1 and is not exposed, so it will not affect the beauty of the building facade.

[0034] Further, it further includes a siphonic rainwater hopper (not shown in the figure). The siphonic rainwater hopper is arranged in the drainage ditch 411 and is connected to the drain opening. The siphonic rainwater hopper has a strong anti-vortex function, which can well prevent air from being brought into the entire drainage system through the water flow at the entrance of the rainwater hopper. When the water level in front of the hopper rises to a certain extent, a water seal is formed to completely block the entry of air, enabling the rainwater to smoothly enter the drain pipe 412, and also minimizing the rain load borne by the cantilevered eaves, effectively improving the drainage efficiency.

[0035] In other embodiments, multiple groups of siphonic rainwater hoppers, drain openings, and drain pipes 412 can also be set according to actual needs to increase the drainage efficiency.

[0036] Further, at least a part of the main beam 2 protrudes outward from the outer side of the secondary beam 3 to form a protruding portion 22, providing an installation position for the decorative board 5.

[0037] Further, it further includes a decorative board 5. The decorative board 5 is erected on the protruding portion 22 and covers the outer periphery of the lower sides of the floor slab 4 and the secondary beam 3, so that the cantilever structure is not exposed and plays a decorative role.

[0038] Further, the top surface of the protruding portion 22 is gradually inclined downward from outside to inside, so that the decorative board 5 erected on the protruding portion 22 inclines towards the wall, which is beneficial to the rainwater on the decorative board 5 flowing towards the stepped portion 41.

[0039] Further, the wall 1 includes a main body 11 and a ring beam 12. The main beam 2 passes through the inner and outer sides of the main body 11. The inner peripheral side of the floor slab 4 is connected to the outer side of the ring beam 12. The main beam 2 and the floor slab 4 are arranged at different parts of the wall 1, which is beneficial to reducing the load of the cantilever structure.

[0040] In other embodiments, the installation positions of the main beam 2 and the floor slab 4 can also be adjusted according to actual requirements.

[0041] In summary, the cantilevered eaves provided in this embodiment can effectively reduce the load of the cantilever structure and increase the stability and safety of the cantilever structure; moreover, the hidden drain pipe 412 is provided, which is beneficial to protecting the aesthetic appearance of the building facade.

[0042] This specification discloses the present application with reference to the accompanying drawings, and also enables those skilled in the art to implement the present application, including manufacturing and using any device or system, adopting appropriate materials, and using any combined methods. The scope of the present application is defined by the claimed technical solutions and includes other examples that occur to those skilled in the art. As long as such other examples include structural elements that are not different from the literal language of the claimed technical solutions, or such other examples contain equivalent structural elements that have no substantial difference from the literal language of the claimed technical solutions, then such other examples should be considered to be within the protection scope determined by the claimed technical solutions of the present application.

Claims

1. A cantilevered eaves, characterized in that, Including: wall, main beam, secondary beam, floor slab and drain pipe; There are multiple main beams, the main beams penetrate through the inner and outer sides of the wall, and the multiple main beams are arranged at circumferential intervals around the wall; The secondary beams are arranged at intervals around the outer periphery of the wall, and the secondary beams are respectively connected to each main beam; The floor slab is arranged around the outer periphery of the wall, the inner peripheral side of the floor slab is connected to the outer side of the wall, the outer peripheral side of the floor slab is connected to the bottom of the secondary beam, and the floor slab is respectively connected to the side surfaces of each main beam. A drainage ditch is provided along the inner peripheral side of the top surface of the floor slab, and there is a gap between the bottom surface of the main beam and the bottom surface of the drainage ditch. Drainage openings communicating with the drainage ditch are provided on the bottom surface of the floor slab; The drain pipe is arranged below the floor slab, and one end of the drain pipe is connected to the drainage opening; 2. The cantilevered eaves according to claim 1, wherein The part of the main beam located outside the wall is defined as the cantilever part of the main beam. The side surface of the cantilever part of the main beam is trapezoidal, and the cross-sectional area of the cantilever part of the main beam gradually decreases from inside to outside; 3. The cantilevered eaves according to claim 1, characterized in that, The floor slab includes at least two step parts arranged in sequence from inside to outside. A connecting part is connected between adjacent two step parts. The top surface heights of the at least two step parts gradually increase from inside to outside. The step part located on the innermost side is connected to the outer side of the wall, and the step part located on the outermost side is connected to the bottom of the secondary beam; The drainage ditch is provided on the step part located on the innermost side; 4. The cantilevered eaves according to claim 3, characterized in that, Except for the step part located on the innermost side, the top surfaces of the remaining step parts gradually incline downward from outside to inside; 5. The cantilevered eaves according to claim 1, characterized in that, The drain pipe penetrates through the wall, and the other end of the drain pipe is arranged inside the wall; 6. The cantilevered eaves according to claim 1, characterized in that, It also includes a siphonic rainwater hopper. The siphonic rainwater hopper is arranged in the drainage ditch and is connected to the drainage opening; 7. The cantilevered eaves according to claim 1, characterized in that, At least part of the main beam protrudes outward from the outside of the secondary beam to form a protruding part; 8. The cantilevered eaves according to claim 7, characterized in that, It also includes a decorative board. The decorative board is erected on the protruding part and covers the outer periphery of the lower sides of the floor slab and the secondary beam; 9. The cantilevered eaves according to claim 8, characterized in that, The top surface of the protruding part gradually inclines downward from outside to inside; 10. The cantilevered eaves according to any one of claims 1-9, characterized in that, The wall includes a main body and a ring beam. The main beam penetrates through the inner and outer sides of the main body, and the inner peripheral side of the floor slab is connected to the outer side of the ring beam.

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