Roof rainwater sinking water collecting and draining device

Abstract

The utility model discloses a roof rainwater sinking water collection and drainage device, which relates to the field of roof water collection and drainage, and comprises a water collection tank and a fixing ring, a top opening of the water collection tank is provided with a flange for lapping a roof structure, the bottom of the water collection tank is provided with a mounting hole, and the fixing ring is sleeved outside the water collection tank. One end of the fixing ring is provided with an annular plate formed by extending outwards in the radial direction, the annular plate is matched with a fastener to be connected to a roof structure, and an inner ring of the fixing ring is connected with the outer wall of the water collecting tank. The water depth in front of the rainwater hopper in the water collecting tank can be rapidly increased, and the drainage system rapidly forms a siphon full-flow state, so that the effect of rapidly draining roof rainwater is achieved, the thickness of a roof leveling layer is reduced, and the installation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the field of roof water collection and drainage, in particular to a roof rainwater sinking water collection and drainage device. Background Art

[0002] The siphon roof rainwater drainage system has the advantages of efficient drainage, small and beautiful pipe diameter, and no slope of the horizontal pipe that does not occupy the net height of the lower room, making it an effective solution to solve roof drainage problems in modern buildings.

[0003] However, due to the need to meet the requirements of effective water storage depth above the siphonic rainwater gutter, roofs that use siphonic roof rainwater drainage systems generally have problems such as too thick leveling layer and too wide drainage ditch. Setting too thick leveling layer on the roof of a new building will lead to increased roof load, increased construction difficulty and cost. When renovating existing houses, the original structure may not be able to withstand excessive loads, making the siphonic drainage system difficult to arrange and install. At the same time, if the siphonic rainwater roof drainage ditch is too wide, it will also lead to a large amount of renovation of the roof of the existing building, which will be unsightly after the construction is completed. Utility Model Content

[0004] The purpose of the utility model is to provide a roof rainwater sinking water collection and drainage device in response to the defects of the prior art. The water collecting box is installed on the roof in a concave manner, so that when the roof is drained, the water depth in front of the rainwater bucket in the water collecting box can be quickly increased, and the drainage system quickly forms a siphon full flow state, thereby achieving the effect of quickly discharging rainwater from the roof, reducing the thickness of the roof leveling layer, and thus improving the convenience of installation.

[0005] In order to achieve the above purpose, the following technical solutions are adopted:

[0006] A roof rainwater sinking water collection and drainage device includes a water collecting box and a fixing ring. The top opening of the water collecting box is provided with a flange for overlapping the roof structure. The bottom of the water collecting box is provided with a mounting hole. The fixing ring is sleeved outside the water collecting box. One end of the fixing ring is provided with a ring plate extending radially outward. The ring plate is equipped with fasteners to be connected to the roof structure. The inner ring of the fixing ring is connected to the outer wall of the water collecting box.

[0007] Furthermore, the water collecting tank is a cylindrical structure, the flange is annular and located at one axial end of the water collecting tank, and the mounting hole is located at the other axial end of the water collecting tank.

[0008] Furthermore, a water collecting cavity is formed inside the water collecting box, one end of the side wall of the water collecting box extends radially outward to form a flange, and the other end of the side wall of the water collecting box extends radially inward to form a mounting hole.

[0009] Furthermore, the flange is provided with through holes for matching fasteners, and a plurality of through holes are arranged at intervals along the circumferential direction of the water collecting tank.

[0010] Furthermore, the installation hole is matched with a rain gutter, and the bottom plate of the rain gutter is attached to and sealed with the bottom plate of the water collecting tank.

[0011] Furthermore, the fixing ring includes a cylinder and a ring plate, one end of the cylinder is connected to the inner ring of the ring plate to form an L-shaped structure in axial section, and the inner wall of the cylinder is attached to and connected to the outer wall of the water collecting tank.

[0012] Furthermore, the ring plate is provided with through holes for matching fasteners, and a plurality of through holes are arranged at intervals along the annular direction of the ring plate.

[0013] Furthermore, the inner wall of the water collecting tank is covered with a surface waterproof layer.

[0014] Furthermore, an asphalt waterproof layer and a waterproof filling layer are provided between the water collecting tank and the roof structure.

[0015] Furthermore, the fastener is a sleeve-type anchor bolt.

[0016] In order to solve the problem that the siphon type roof rainwater drainage system has a high requirement for the thickness of the roof leveling layer, the utility model adopts a water collecting box to be installed on the roof in a concave manner, so that when the roof is drained, the water depth in front of the rainwater bucket in the water collecting box can be quickly increased, and the drainage system quickly forms a siphon full flow state, thereby achieving the effect of quickly draining the roof rainwater, reducing the thickness of the roof leveling layer, and thus improving the convenience of installation.

[0017] The water collecting box of the utility model can be arranged across the gutter, and the gutter width is expanded only at the installation position of the water collecting box, which solves the problem of large amount of renovation of the roof of the existing building caused by the excessive overall width of the gutter and reduces the construction difficulty.

[0018] The utility model provides a flange at the opening of the water collecting tank to establish an overlap between the water collecting tank and the roof structure, thereby ensuring that the water collecting tank can be stably installed on the roof structure, and the position of the water collecting tank is stabilized by fasteners to ensure its stable operation. In addition, a fixed ring sleeve is arranged outside the water collecting tank to establish a connection with the roof structure from the middle position of the water collecting tank to maintain the relative position of the water collecting tank and the roof structure, thereby maintaining its stability when subjected to drainage impact force, reducing shaking, and lowering noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a roof rainwater sinking water collection and drainage device in an embodiment of the utility model.

[0020] Figure 2 This is a schematic diagram of the connection between the water collecting tank and the roof structure in an embodiment of the utility model.

[0021] Figure 3 It is a schematic diagram of the surface waterproof layer and the asphalt waterproof layer in an embodiment of the utility model.

[0022] Figure 4It is a schematic diagram of a water collecting tank in an embodiment of the utility model.

[0023] Figure 5 It is a schematic diagram of the mounting holes on the water collecting box in the embodiment of the utility model.

[0024] Figure 6 It is a schematic diagram of a rain gutter in an embodiment of the utility model.

[0025] Figure 7 It is a schematic diagram of a fixing ring in an embodiment of the utility model.

[0026] Figure 8 It is a schematic diagram of the relative positions of the gutter and the water collecting bucket in the embodiment of the utility model.

[0027] Fig. 9 It is a schematic diagram of the relative positions of the gutter and the water collecting bucket in the embodiment of the utility model.

[0028] Explanation of the numbers (in order of first appearance): 1. Roof structure, 2. Fixing ring, 3. Water collecting tank, 4. Drain pipe, 5. Rain gutter, 6. Base plate, 7. Flange, 8. Gutter, 9. Installation hole, 10. Surface waterproof layer, 11. Asphalt waterproof layer, 12. Waterproof filling layer, 13. Fasteners. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0030] As described in the background technology, the siphon drainage system has high requirements for the effective water storage depth above the rainwater bucket 5. In the traditional method, a thicker leveling layer needs to be laid, which increases the roof load, and the construction difficulty and cost are also high. Therefore, in this embodiment, a roof rainwater sinking water collection and drainage device is provided, and the water collection box 3 is installed at the opening position of the roof structure 1 in a concave manner, so as to increase the effective depth in front of the siphon rainwater bucket 5 without increasing the depth of the drainage ditch. When draining the roof, the water depth in front of the rainwater bucket 5 in the water collection box 3 can be quickly increased, and the drainage system quickly forms a siphon full flow state, thereby achieving the effect of quickly draining the roof rainwater, reducing the thickness of the roof leveling layer, and thus improving the convenience of installation.

[0031] Next, combine Figure 1-Figure 9 The roof rainwater sinking collection and drainage device is explained in detail.

[0032] See also Figure 1The roof rainwater sinking water collection and drainage device includes a water collecting box 3 and a fixing ring 2. After the water collecting box 3 is installed on the roof structure 1, a concave structure is formed, so that the top opening of the water collecting box 3 is flush with the bottom surface of the gutter 8 of the roof structure 1 at the installation position. The water collecting box 3 is reinforced by the fixing ring 2. The internal cavity of the water collecting box 3 is located below the bottom surface of the gutter 8, which helps to collect the water in the gutter 8 and quickly increase the water level in the water collecting box 3.

[0033] The top opening of the water collecting box 3 is provided with a flange 7, so that the water collecting box 3 can be well overlapped with the roof structure 1, ensuring the stability and sealing of the roof rainwater sinking water collecting and drainage device. At the bottom of the water collecting box 3, a mounting hole 9 is provided, which is convenient for installation with the rainwater bucket 5. The rainwater bucket 5 is connected to a drainage pipe 4 to discharge the water collected by the rainwater bucket 5 to the outside of the roof structure 1.

[0034] The fixing ring 2 takes into account the fixing and installation of the water collecting box 3. The fixing ring 2 is sleeved on the outside of the water collecting box 3, and one axial end thereof is provided with a ring plate extending radially outward. The design of the ring plate allows the fixing ring 2 to be connected to the roof structure 1 through the fasteners 13, ensuring that the water collecting box 3 is firmly fixed on the roof. The inner ring of the fixing ring 2 is connected to the outer wall of the water collecting box 3, ensuring the stability of the water collecting box 3 and improving the supporting performance of the water collecting box 3. In addition, the gap between the outer wall of the water collecting box 3 and the opening of the roof structure 1 can be filled with waterproof material, and the ring plate of the fixing ring 2 is arranged at intervals with the flange 7 of the water collecting box 3, with the roof structure 1 in between, to prevent rainwater from leaking from the gap between the water collecting box 3 and the roof structure 1.

[0035] The concave design of the water collecting box 3 allows the water depth in front of the rainwater bucket 5 to increase rapidly when the roof is drained, thereby quickly forming a siphon full flow state, achieving the effect of quickly draining rainwater from the roof. This solves the problem that the traditional siphon drainage system needs to increase the thickness of the leveling layer to meet the effective water storage depth, reduces the load on the roof, and reduces the construction difficulty and cost.

[0036] The design of the fixing ring 2 enables the water collecting box 3 to be firmly fixed on the roof, while ensuring the stability and sealing of the device, thereby solving the problems of unstable fixing or loose sealing in the traditional installation method.

[0037] By optimizing the structure of the rainwater sinking and drainage device on the roof, the workload of the existing building roof renovation is reduced and the aesthetics after the construction is completed is improved. The roof drainage efficiency is improved, so that rainwater can be discharged quickly, reducing the problem of water accumulation on the roof.

[0038] like Figure 4 , Figure 5As shown, the water collecting box 3 is a cylindrical structure, which can improve the structural strength of the water collecting box 3, so that it can effectively collect rainwater from the annular direction. The flange 7 is an annular structure, located at one end of the axial direction of the water collecting box 3, which is convenient for overlapping the water collecting box 3 and the roof structure 1. The mounting hole 9 is located at the other end of the axial direction of the water collecting box 3, and the mounting hole 9 can be conveniently connected to the drainage pipe 4 to achieve the discharge of rainwater.

[0039] A water collecting cavity is formed inside the water collecting tank 3, which is the main area for collecting rainwater. The side wall of the water collecting tank 3 extends outward along one end of its axial direction to form a flange 7, which increases the contact area between the water collecting tank 3 and the roof structure 1. The bearing of the water collecting tank 3 is achieved by overlapping the flange 7 with the roof structure 1, which improves the stability of the roof rainwater sinking water collecting and drainage device. The other end of the side wall of the water collecting tank 3 extends inward along its axial direction to form a mounting hole 9, which is convenient for the installation of the rainwater gutter 5. Rainwater gathers in the water collecting tank 3 to raise the water level, so that it can be discharged smoothly from the rainwater gutter 5.

[0040] The flange 7 is provided with a plurality of through holes, which are arranged at intervals along the circumferential direction of the water collecting box 3 and are used to cooperate with the fasteners 13 for fixing, so that the fasteners 13 can be evenly distributed on the flange 7 to ensure a firm connection between the water collecting box 3 and the roof structure 1.

[0041] The mounting hole 9 is matched with a rain gutter 5, and the bottom plate of the rain gutter 5 is tightly fitted with the bottom plate 6 of the water collecting tank 3 to achieve sealing. Figure 6 As shown, in this embodiment, the edge of the water collecting bucket is connected to the bottom plate 6 of the water collecting box 3 by welding, and a full weld is formed. The edge of the mounting hole 9 is connected to the water collecting bucket by welding, and a full weld is formed, ensuring that rainwater can be smoothly discharged from the water collecting box 3 through the rainwater bucket 5, while preventing rainwater leakage. The sealing of the drainage system is ensured, the maintenance cost is reduced, and the service life is extended.

[0042] like Figure 7 As shown, the fixing ring 2 is composed of a cylinder and a ring plate, one end of the cylinder is connected to the inner ring of the ring plate, forming an L-shaped structure with an axial end face, so that the fixing ring 2 can be stably sleeved on the outside of the water collecting tank 3, while providing sufficient support area and connection points.

[0043] The inner wall of the cylinder is in contact with and connected to the outer wall of the water collecting box 3, thereby ensuring the stability and sealing between the fixing ring 2 and the water collecting box 3 and preventing rainwater from leaking from the gap between the two.

[0044] The ring plate is provided with a plurality of through holes, which are arranged at intervals along the annular direction of the ring plate. The through holes are used to cooperate with fasteners 13, such as bolts or screws, to firmly fix the fixing ring 2 on the roof structure 1. The spaced arrangement of the through holes ensures the uniform distribution of the fastening force and improves the stability and safety of the device.

[0045] The L-shaped fixing ring 2 design provides stronger structural support, so that the roof rainwater sinking water collection and drainage device can withstand a greater load, thereby improving its stability and durability.

[0046] The close fitting design between the cylinder and the water collecting box 3 ensures a firm and sealed connection between the two, prevents rainwater leakage, and ensures the normal operation of the drainage system.

[0047] By optimizing the structure of the fixing ring 2, the stability and sealing of the roof rainwater sinking water collection and drainage device are significantly improved, while the installation process is simplified, the cost is reduced, and it has high practical value and application prospects.

[0048] like Figure 2 and Figure 3 As shown, the inner wall of the water collecting box 3 is covered with a surface waterproof layer 10, which is intended to enhance the waterproof performance of the water collecting box 3, prevent rainwater from leaking from the inside of the water collecting box 3, and ensure the normal operation of the roof rainwater sinking water collection and drainage system. The surface waterproof layer 10 is usually made of water-resistant and corrosion-resistant materials, which can effectively resist the erosion and penetration of rainwater.

[0049] An asphalt waterproof layer 11 and a waterproof filling layer 12 are provided between the water collecting tank 3 and the roof structure 1. The asphalt waterproof layer 11 has good waterproof performance and can effectively prevent rainwater from leaking from the gap between the water collecting tank 3 and the roof structure 1. The waterproof filling layer 12 fills the gap between the water collecting tank 3 and the roof structure 1, further enhancing the waterproof effect.

[0050] In this embodiment, the fastener 13 adopts a sleeve anchor bolt. The sleeve anchor bolt has the advantages of easy installation, strong bearing capacity, corrosion resistance, etc., and is suitable for fixing needs in various environments and conditions. Using the sleeve anchor bolt as the fastener 13 can ensure a firm connection between the fixing ring 2, the water collecting box 3 and the roof structure 1, and improve the stability and safety of the roof rainwater sinking water collecting and drainage device.

[0051] Among them, the water collecting box 3 and the fixing ring 2 are made of stainless steel, such as 304 stainless steel, the diameter of the inner cavity of the water collecting box 3 R1 ≥ D + 200mm, the vertical depth of the water collecting box 3 H ≥ h-250mm, the outer diameter of the flange 7 R2 ≥ R1 + 200mm, the inner diameter of the barrel of the fixing ring 2 R3 ≥ R1 + 8mm, the outer diameter of the fixing ring 2 R4 ≥ R3 + 100mm, the wall thickness of the fixing ring 2 is 5mm, the depth of the gutter 8 h ≤ 200mm, and the width of the gutter 8 ≤ 400mm. The fastener 13 is made of stainless steel. The size of the through hole opened on the flange 7 of the water collecting box 3 and the fixing ring 2 is φ10, and 12 through holes are respectively opened on the flange 7 of the water collecting box 3 and the ring plate of the fixing ring 2, and the central angle corresponding to the adjacent through hole distribution position is 30°. In other optional embodiments, the number of through holes opened on the flange 7 and the ring plate can be adaptively adjusted to increase or decrease the number of through holes.

[0052] In addition, the radius r of the mounting hole 9 opened on the bottom plate 6 of the water collecting box 3 is 65 mm-150 mm, and the radius of the position of the matching mounting hole 9 on the rain gutter 5 is smaller than the diameter of the mounting hole 9 .

[0053] like Figure 8 As shown, for the roof structure 1 of the newly built building: ① before pouring the roof structure 1, a hole is reserved according to the size of the stainless steel water collecting tank 3, and the hole size R ≥ 500mm; ② after the construction of the roof structure 1 is completed, the stainless steel water collecting tank 3 is placed above the hole and fixed with a stainless steel sleeve type flat head anchor bolt; ③ under the structural plate of the roof structure 1, the circular stainless steel right-angle fixing ring 2 is inserted into the outside of the stainless steel water collecting tank 3 and fixed with a stainless steel sleeve type anchor bolt; ④ install the rain gutter 5 and the drainage pipe 4 and complete the roof surface construction.

[0054] like Fig. 9 As shown, for the roof structure 1 of the old roof renovation: ① dig a hole on the original building roof according to the size of the stainless steel water collecting tank 3, and the hole size R ≥ 500mm; ② reinforce the structure of the hole; ③ clear the roof surface near the hole; ④ put the stainless steel water collecting tank 3 above the hole and fix it with stainless steel sleeve flat head anchor bolts; ⑤ put the circular stainless steel right angle fixing ring 2 under the structural plate on the outside of the stainless steel water collecting tank 3 and fix it with stainless steel sleeve anchor bolts; ⑥ install the rain gutter 5 and the drainage pipe 4 and repair the roof surface.

[0055] The system operation process is as follows:

[0056] When it rains, rainwater is quickly collected into the stainless steel water collecting box 3 through the roof slope and the roof rainwater ditch. The water depth in front of the rainwater bucket 5 installed in the water collecting box 3 increases rapidly, so that the rainwater system quickly forms a siphon full flow state to achieve the effect of quickly draining the roof rainwater.

[0057] It should be pointed out that the height of the water collecting tank 3 is ≥250mm-the depth of the gutter 8, ensuring that the effective water storage depth in the water collecting tank 3 meets the requirements of Article 3.2.4 of the "Technical Code for Siphonic Roof Rainwater Drainage System" CECS183:2015: "The effective depth of gutter 8 should be the design water depth plus the protection height. The effective water depth of gutter 8 should not be less than 250mm, and the protection height should not be less than 75mm." The inner diameter of the water collecting tank 3 is ≥ the diameter of the siphonic rainwater bucket 5 + 200mm, ensuring that the net size of the water collecting tank 3 meets the requirements of Article 3.2.2 of the "Technical Code for Siphonic Roof Rainwater Drainage System" CECS183:2015: "The water-passing section of gutter 8 should be determined based on the design flow calculation of the catchment area, and the width of gutter 8 at the setting point of rainwater bucket 5 should ensure uniform water inflow around the rainwater bucket 5, and the distance between the outer edge of the rainwater bucket 5 and the inner wall of the gutter 8 should not be less than 100mm."

[0058] The above detailed description of the specific implementation of the utility model is only used as an example, and the utility model is not limited to the specific implementation described above. For those skilled in the art, any equivalent modification or substitution of the utility model is also within the scope of the utility model. Therefore, the equalization, modification, improvement, etc. made without departing from the spirit and principle of the utility model should be included in the scope of the utility model.

Claims

1. A roof rainwater sinking water collection and drainage device, characterized in that: It includes a water collecting box and a fixing ring. The top opening of the water collecting box is provided with a flange for overlapping the roof structure. The bottom of the water collecting box is provided with a mounting hole. The fixing ring is sleeved outside the water collecting box. One end of the fixing ring is provided with a ring plate extending radially outward. The ring plate is equipped with fasteners to connect to the roof structure. The inner ring of the fixing ring is connected to the outer wall of the water collecting box.

2. The roof rainwater sinking water collection and drainage device according to claim 1, characterized in that: The water collecting tank is a cylindrical structure, the flange is annular and located at one axial end of the water collecting tank, and the mounting hole is located at the other axial end of the water collecting tank.

3. The roof rainwater sinking water collection and drainage device according to claim 2, characterized in that: A water collecting cavity is formed inside the water collecting box, one end of the side wall of the water collecting box extends radially outward to form a flange, and the other end of the side wall of the water collecting box extends radially inward to form a mounting hole.

4. The roof rainwater sinking water collection and drainage device according to claim 1, 2 or 3, characterized in that: The flange is provided with through holes for matching fasteners, and a plurality of through holes are arranged at intervals along the annular direction of the water collecting tank.

5. The roof rainwater sinking water collection and drainage device according to claim 1, 2 or 3, characterized in that: The installation hole is matched with a rainwater bucket, and the bottom plate of the rainwater bucket is attached to and sealed with the bottom plate of the water collecting tank.

6. The roof rainwater sinking water collection and drainage device according to claim 1, characterized in that: The fixing ring comprises a cylinder and a ring plate, one end of the cylinder is connected to the inner ring of the ring plate to form an L-shaped structure in axial section, and the inner wall of the cylinder is attached to and connected to the outer wall of the water collecting tank.

7. The roof rainwater sinking water collection and drainage device according to claim 6, characterized in that: The ring plate is provided with through holes for matching fasteners, and a plurality of through holes are arranged at intervals along the annular direction of the ring plate.

8. The roof rainwater sinking water collection and drainage device according to claim 1, characterized in that: The inner wall of the water collecting box is covered with a surface waterproof layer.

9. The roof rainwater sinking water collection and drainage device according to claim 8, characterized in that: An asphalt waterproof layer and a waterproof filling layer are provided between the water collecting tank and the roof structure.

10. The roof rainwater sinking water collection and drainage device according to claim 1, characterized in that: The fastener is a sleeve type anchor bolt.

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