Novel roof drainage hopper

Abstract

The utility model relates to the technical field of building drainage, in particular to a novel roof drainage hopper which sequentially comprises a concrete layer, a waterproof roll layer and a heat preservation layer from inside to outside and further comprises an outer rainwater hopper, the outer rainwater hopper is embedded and fixed in the concrete layer, and the top end of the outer rainwater hopper is fixedly connected with a cylindrical barrel. The columnar barrel is fixedly embedded in the waterproof roll layer and the heat preservation layer, an inner rainwater hopper is fixedly connected to the columnar barrel, one end of the inner rainwater hopper is fixedly connected with the columnar barrel, and the other end of the inner rainwater hopper is arranged in an outer rainwater hopper in a sleeved mode. The caliber of the inner water bucket is small, and stones are arranged in the columnar barrel, so that impurities can be effectively blocked, blockage is prevented, and smooth drainage is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of building drainage technology, and in particular to a novel roof drainage hopper. Background Technology

[0002] The roof of a building needs to be waterproofed, and drainage hoppers should be installed to actively drain water and prevent water from accumulating and leaking from the top floor. If rainwater leaks into the concrete walls, it will cause the steel bars to rust and the concrete to crack, which will seriously affect the overall safety of the building and its service life.

[0003] Traditional drainage hoppers rely solely on their funnel-shaped structure to be fixed inside the building structure by being embedded in concrete. The drainage hoppers are made of plastic with an open inlet, which allows for fast drainage but makes them prone to getting clogged by debris and has a relatively short service life. Utility Model Content

[0004] The purpose of this utility model is to provide a novel roof drainage hopper to solve the problems mentioned in the background art.

[0005] A novel roof drainage hopper comprises, from the inside out, a concrete layer, a waterproof membrane layer, and an insulation layer. Its distinguishing feature is that it further includes an outer rainwater hopper embedded and fixed in the concrete layer. A columnar tube is fixedly connected to the top of the outer rainwater hopper, and the columnar tube is embedded and fixed in the waterproof membrane layer and the insulation layer. An inner rainwater hopper is fixedly connected to the columnar tube, with one end of the inner rainwater hopper fixedly connected to the columnar tube, and the other end of the inner rainwater hopper fitted inside the outer rainwater hopper.

[0006] Preferably, one end of the external rainwater hopper is an external water outlet, which is a wide-mouthed funnel shape, and the other end is an external drainage end, which is tubular.

[0007] Furthermore, the top surface of the external rainwater hopper is flush with the top surface of the concrete layer.

[0008] Furthermore, a spiral groove is formed inside the external drainage end.

[0009] Preferably, the cylindrical tube has several drainage holes on its side.

[0010] Preferably, the inner rainwater hopper has a similar structure to the outer rainwater hopper, with one end being an inner water collection end in the shape of a wide-mouthed funnel and the other end being a tubular inner drainage end, and the top surface of the inner water collection end being fixedly connected to the top surface of the cylindrical tube.

[0011] Furthermore, a spiral groove is formed on the inner surface of the inner drainage end.

[0012] Preferably, the space between the inner rainwater hopper and the cylindrical tube is filled with pebbles.

[0013] Compared with the prior art, the advantages of this utility model are as follows: This utility model adopts a double-layer structure with inner and outer layers, and is supported by a columnar tube, which enhances the stability of the entire device. The outer rainwater hopper, columnar tube and inner rainwater hopper are welded and fixed, which facilitates prefabrication, simplifies the installation process, improves installation efficiency and shortens the construction cycle. The through holes on the outside of the columnar tube facilitate the drainage of water accumulated in the insulation layer. The columnar tube is filled with pebbles. Water accumulated in the insulation layer passes through the columnar tube and pebbles into the outer rainwater hopper. The pebbles can isolate larger impurities. The inner walls of both the outer and inner rainwater hoppers are provided with spiral grooves. When rainwater passes through, the spiral grooves can increase the water flow speed and turbulence, preventing scale and deposits from accumulating on the inner wall. It has the advantages of high stability, long service life, convenient drainage of water accumulated in the roof insulation layer and fast drainage. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram illustrating the usage state of one embodiment of the present invention;

[0016] Figure 3 This is a cross-sectional structural diagram of an embodiment of the present invention in use.

[0017] In the diagram: 1. Concrete layer; 2. Waterproof membrane layer; 3. Insulation layer; 4. External rainwater hopper; 41. External water collection end; 42. External drainage end; 5. Columnar tube; 51. Drainage hole; 52. Gravel; 6. Internal rainwater hopper; 61. Internal water collection end; 62. Internal drainage end. Detailed Implementation

[0018] The following will describe specific embodiments and appendices. Figure 1-3 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0019] A novel roof drainage hopper is designed for use on the rooftop of a building for drainage. The building consists of a concrete layer 1, a waterproof membrane layer 2, and an insulation layer 3 from the inside out. An outer rainwater hopper 4 is embedded and fixed within the concrete layer 1. A columnar tube 5 is fixedly connected to the top of the outer rainwater hopper 4. The columnar tube 5 is embedded and fixed within the waterproof membrane layer 2 and the insulation layer 3. An inner rainwater hopper 6 is fixedly connected to the columnar tube 5. The space between the inner rainwater hopper 6 and the columnar tube 5 is filled with pebbles 52. The outer rainwater hopper 4 and the inner rainwater hopper 6 can collect and guide rainwater. The pebbles 52 can also purify the water, preventing sand, leaves, and other debris from entering and ensuring smooth water flow.

[0020] The external rainwater hopper 4 is divided into an external water outlet 41 and an external drainage outlet 42. The top surface of the external water outlet 41 is flush with the top surface of the concrete layer 1. The external water outlet 41 is a wide-mouthed funnel shape, and the drainage outlet is a pipe shape. The funnel shape is conducive to the collection and drainage of rainwater, preventing rainwater from seeping into the concrete layer 1 along the edge of the external rainwater hopper 4. After the rainwater seeps into the insulation layer 3 and the waterproof membrane layer 2, it will remain in the gap between the waterproof membrane layer 2 and the insulation layer 3. The funnel shape can collect the rainwater in the gap, which is conducive to the drainage of the water stored in the gap. The external drainage outlet 42 is provided with a spiral groove. The spiral groove can guide the water flow to form a vortex, increase the flow speed and turbulence of the water flow, and thus accelerate the drainage.

[0021] The bottom end of the cylindrical tube 5 is fixedly connected to the top surface of the external water outlet 41. A large number of drainage holes 51 are opened on the side of the cylindrical tube 5. The diameter of the drainage holes 51 is no more than 50 mm. The cylindrical tube 5 is set through the insulation layer 3. The drainage holes 51 on its side can facilitate the water accumulated in the insulation layer 3 to enter the cylindrical tube 5, which is conducive to the water being discharged along the external rainwater hopper 4. The particle size of the pebbles 52 in the cylindrical tube 5 is 20-35 mm, which is used to isolate larger impurities.

[0022] An inner rainwater hopper 6 is fixedly connected to the top of the cylindrical tube 5. The inner rainwater hopper 6 has a similar structure to the outer rainwater hopper 4. The upper end is an inner water collection end 61 in the shape of a wide-mouthed funnel, and the lower end is a tubular inner drainage end 62. The top surface of the inner water collection end 61 is fixedly connected to the top surface of the cylindrical tube 5. The inner rainwater hopper 6 is mainly used to guide the rainwater collected above the building insulation layer 3 into the inner rainwater hopper 6 to help it drain. The inner surface of the inner drainage end 62 is also provided with spiral grooves, which helps to guide the rainwater flowing through the inner rainwater hopper 6 to form vortices and increase the flow of rainwater through the inner rainwater hopper 6. To increase drainage efficiency, the inner rainwater hopper 6 extends into the outer rainwater hopper 4 in a stacked manner, with the inner drain end 62 fitted inside the outer drain end 42, but the two are not in contact. The inner rainwater hopper 6, the columnar cylinder 5, and the outer rainwater hopper 4 are all made of stainless steel and are sealed together by laser welding. The top surface of the outer rainwater hopper 4 is finished with a tapered end, which is a prior art technique, so that the outer rainwater hopper 4 and the waterproof membrane layer 2 are tightly bonded together, preventing rainwater from seeping into the gap between the outer rainwater hopper 4 and the concrete layer 1 and affecting the structural strength of the concrete layer 1.

[0023] The top surface of the inner rainwater hopper 6 is flush with the top surface of the insulation layer 3. The top surface of the insulation layer 3 is recessed at the location of the inner rainwater hopper 6, which makes it easier for rainwater to collect into the outer rainwater hopper 4 and facilitates rainwater drainage.

[0024] In this device, the outer rainwater hopper 4, the columnar cylinder 5, and the inner rainwater hopper 6 are made of stainless steel and are laser-welded and sealed. The outer rainwater hopper 4 and the inner rainwater hopper 6 work in an alternating manner and are supported by the columnar cylinder 5, which increases the stability of the device. This device is a prefabricated product, which can increase installation efficiency, shorten the construction period, provide rapid drainage, high stability, and long service life.

[0025] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.

[0026] In this utility model, "upper", "lower", "left", "right", "front" and "back" are relative positions used to facilitate the description of positional relationships, and therefore cannot be understood as absolute positions as a limitation on the scope of protection.

[0027] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A novel roof drainage hopper, comprising, from the inside out, a concrete layer, a waterproof membrane layer, and an insulation layer, characterized in that, It also includes an external rainwater hopper, which is embedded and fixed in the concrete layer. A columnar tube is fixedly connected to the top of the external rainwater hopper. The columnar tube is embedded and fixed in the waterproof membrane layer and the insulation layer. An internal rainwater hopper is fixedly connected to the columnar tube. One end of the internal rainwater hopper is fixedly connected to the columnar tube, and the other end of the internal rainwater hopper is fitted inside the external rainwater hopper.

2. The novel roof drainage hopper according to claim 1, characterized in that, One end of the external rainwater hopper is the external water outlet, which is a wide-mouthed funnel shape, and the other end is the external drainage end, which is tubular.

3. A novel roof drainage hopper according to claim 2, characterized in that, The top surface of the external rainwater hopper is flush with the top surface of the concrete layer.

4. A novel roof drainage hopper according to claim 3, characterized in that, The external drainage end is provided with a spiral groove.

5. A novel roof drainage hopper according to claim 1, characterized in that, The cylindrical tube has several drainage holes on its side.

6. A novel roof drainage hopper according to claim 1, characterized in that, The inner rainwater hopper has a similar structure to the outer rainwater hopper. One end is an inner water collection end in the shape of a wide-mouthed funnel, and the other end is a tubular inner drainage end. The top surface of the inner water collection end is fixedly connected to the top surface of the cylindrical tube.

7. A novel roof drainage hopper according to claim 6, characterized in that, The inner surface of the inner drainage end is provided with a spiral groove.

8. A novel roof drainage hopper according to claim 1, characterized in that, The space between the inner rainwater hopper and the cylindrical tube is filled with pebbles.

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