Building roof clogging prevention sewer structure

Abstract

The utility model relates to a kind of building roof prevents to block up water structure, including bottom for inserting in the inner filter cylinder of drain hole, still including the outer filter cylinder of the outer portion of inner filter cylinder, the periphery of the inner filter cylinder is equipped with first filter hole, the outer filter cylinder includes coaxially arranged inner cylinder, outer cylinder and the support plate connecting inner cylinder and outer cylinder, second filter hole is arranged on the inner cylinder, the aperture of the second filter hole is greater than the aperture of first filter hole. Realize the classification filtration of sundries, avoid accumulation in the top of drain hole, effectively guarantee the smoothness of downcomer, avoid blockage.

Description

Technical Field

[0001] This utility model relates to the field of building roof drainage equipment, and in particular to a building roof anti-clogging drainage structure. Background Technology

[0002] The drainage system for building roofs typically involves installing drainage holes at the lowest edge of the roof, which are then connected to water pipes to drain the water to the ground. However, in actual use, debris such as falling leaves and dust can easily clog these drainage holes, leading to poor drainage, water accumulation on the roof, and backflow.

[0003] Existing technologies use floor drain filters filled with drain holes. To avoid clogging, single floor drain filters typically have small filter hole diameters. This structure can filter out branches, leaves, and large particles such as stones and silt. However, silt and stones easily accumulate on the branches and leaves and flow directly into the floor drain, causing the filter holes to become clogged and preventing water from draining quickly. This results in clogged drain holes and affects drainage performance. The problem of poor drainage still exists during use, and the cleaning process is too complicated, labor-intensive, and inefficient. Utility Model Content

[0004] The purpose of this utility model is to provide a structure for preventing blockage of drainage on building roofs, so as to solve the problem that the drainage drains on building roofs in the prior art are still blocked, affecting the smoothness of drainage.

[0005] To solve the above problems, the building roof anti-clogging drainage structure involved in this utility model adopts the following technical solution: The building roof anti-clogging drainage structure includes an inner filter cylinder at the bottom for insertion into a drain hole, and an outer filter cylinder sleeved outside the inner filter cylinder. The inner filter cylinder is provided with a first filter hole around its perimeter. The outer filter cylinder includes an inner cylinder, an outer cylinder, and a support plate connecting the inner cylinder and the outer cylinder, arranged coaxially. The inner cylinder is provided with a second filter hole, the diameter of which is larger than that of the first filter hole.

[0006] In a preferred embodiment, both the inner filter cylinder and the outer filter cylinder are circular cylinders.

[0007] In a preferred embodiment, the drain hole is a T-shaped hole with an flared top, including a lower small-diameter section and an upper large-diameter section. The lower end of the inner filter cylinder is inserted into the small-diameter section, and the outer filter cylinder is filled into the large-diameter section.

[0008] In a preferred embodiment, the tops of both the inner and outer cylinders are higher than the top of the drain hole, and the surface of the support plate is lower than the upper surface of the drain hole.

[0009] In a preferred embodiment, the support plate is connected to the lower middle part of the side wall of the inner cylinder and the outer cylinder, and a second filter hole is provided on both the support plate and the outer cylinder.

[0010] In a preferred embodiment, the inner cylinder, outer cylinder, and support plate are welded and fixed to each other.

[0011] In a preferred embodiment, a lifting handle is provided at the top of the outer cylinder.

[0012] As described above, this utility model has the following beneficial effects: Compared with the prior art, the anti-clogging drainage structure for building roofs involved in this utility model, through the nested assembly of inner and outer filter cylinders and the design of the pore size on both, can effectively filter debris on the roof in stages, effectively avoiding the problem of poor drainage caused by only one stage of filtration. In addition, the two-stage filtration method using inner and outer filter cylinders can perform preliminary filtration for large branches, leaves, stones, etc., while stones and small branches, etc., can be effectively filtered by the inner filter cylinder when entering the circumferential space between the outer and inner filter cylinders. In this process, the debris is filtered in stages, preventing it from accumulating at the top of the drain hole, effectively ensuring smooth drainage and preventing blockage. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below: Figure 1 This is a schematic diagram of a specific embodiment of the building roof anti-clogging drainage structure of this utility model; Figure 2 for Figure 1 A half-section view; Figure 3 for Figure 1 A schematic diagram of the inner filter cartridge; Figure 4 for Figure 1 A schematic diagram of the structure of the filter cartridges.

[0014] Explanation of reference numerals in the attached drawings: 1-Inner filter cylinder; 11-First filter hole; 2-Outer filter cylinder; 21-Second filter hole; 22-Inner cylinder; 23-Outer cylinder; 24-Support plate; 25-Lifting handle; 3-Drain hole; 31-Small diameter section; 32-Large diameter section; 4-Water inlet pipe. Detailed Implementation

[0015] To make the technical objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model; that is, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown herein can generally be arranged and designed in various different configurations.

[0016] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are only used to distinguish different components. The terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a mechanical connection or a connection within two elements, a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0018] Specific embodiments of the anti-clogging drainage structure for building roofs involved in this utility model are as follows: Figures 1 to 4 As shown, the building roof anti-clogging drainage structure includes an inner filter cylinder 1 at the bottom for insertion into the drain hole 3, and an outer filter cylinder 2 sleeved outside the inner filter cylinder 1.

[0019] In order to facilitate the assembly of the inner filter cartridge 1 and the outer filter cartridge 2 and achieve the staged filtration function, the roof drainage hole 3 is designed as a T-shaped hole in this embodiment. This includes the original small-diameter drainage section 31 and a large-diameter section 32 formed by expanding outwards from the top of the small-diameter section 31. The small-diameter section 31 and the large-diameter section 32 are coaxially arranged and are both circular holes. The original water inlet pipe 4 is fixed inside the small-diameter section 31 and extends downwards. Simultaneously, there is a certain distance between the top of the water inlet pipe 4 and the top of the small-diameter section 31 to facilitate the rapid installation of the inner filter cartridge 1.

[0020] Regarding the inner filter cartridge 1, its structure is as follows: Figure 3 As shown, a first filter hole 11 is provided around the perimeter. The surrounding filter hole filters impurities from both inside and outside, and also functions as an internal drain. In order to meet the water intake requirements and prevent rainwater from accumulating in the large-diameter section 32, the lower end of the inner filter cylinder 1 is inserted into the small-diameter section 31 and connects with the top of the water inlet pipe 4. In addition, the top of the inner filter cylinder 1 is higher than the top surface of the drain hole 3, ensuring that even when the water is at a certain height, it still has a certain internal filtration effect.

[0021] Regarding the outer filter cartridge 2, such as Figure 4 As shown, the outer filter cylinder 2 is filled inside the large-diameter section 32, which includes an inner cylinder 22 and an outer cylinder 23 arranged coaxially, and a support plate 24 connecting the inner cylinder 22 and the outer cylinder 23. The inner cylinder 22 is provided with a second filter hole 21. In order to adapt to the circular structure of the drain hole 3, the aforementioned inner filter cylinder 1 and outer filter cylinder 2 are both circular cylinders, that is, the inner cylinder 22 and the outer cylinder 23 are both circular cylinders, and the support plate 24 is an annular plate.

[0022] In this embodiment, to maximize the filtration effect, a second filter hole 21 is provided on both the support plate 24 and the outer cylinder 23. That is, when rainwater flows into the large-diameter section 32, it can achieve preliminary filtration of large particles of debris through the cooperation of the support plate 24 and the inner cylinder 22. At the same time, rainwater can enter the inner cylinder 22 from the support plate 24 and the inner cylinder 22, and enter the water inlet pipe 4 through the inner filter cylinder 1, thereby achieving a staged filtration effect.

[0023] In addition, to achieve graded filtration, the diameter of the second filter hole 21 is larger than that of the first filter hole 11. Furthermore, the tops of both the inner cylinder 22 and the outer cylinder 23 are higher than the top of the drain hole 3, and the surface of the support plate 24 is lower than the upper surface of the drain hole 3. This design enables graded filtration; the top of the drain hole 3 at the top of the outer cylinder 23 can block foreign objects such as branches, leaves, and plastic film from flowing directly onto the support plate 24, preventing premature blockage. Then, water carrying large stones and silt enters the outer cylinder 23 and the top of the support plate 24. During this process, small branches, leaves, and debris are filtered along with the water flow into the inner filter cylinder 1. After secondary filtration through the first filter hole 11, the small branches, leaves, and debris flow into the water inlet pipe 4.

[0024] To ensure rapid water inflow and maintain filtration effectiveness, the support plate 24 is connected to the lower middle part of the side wall of the inner cylinder 22 and the outer cylinder 23. Water can enter the lower part of the support plate 24 through the second filter hole 21 and flow inward through the inner filter cylinder 1. During this process, the impurities carried by the flowing water can be filtered to the maximum extent, increasing its filtration surface area.

[0025] In addition, for ease of processing, the inner cylinder 22, outer cylinder 23, and support plate 24 are welded together. For easy inspection and cleaning, a lifting handle 25 is provided on the top of the outer cylinder 23.

[0026] Finally, it should be noted that the above embodiments are only for illustration and not for limiting the technical solutions of this utility model. Any equivalent substitutions and modifications or partial substitutions that do not depart from the spirit and scope of this utility model should be covered within the scope of protection of the claims of this utility model.

Claims

1. A roof-mounted drainage anti-clogging structure, characterized in that, The device includes an inner filter cylinder at the bottom for insertion into a drain hole, and an outer filter cylinder sleeved around the inner filter cylinder. The inner filter cylinder is provided with a first filter hole around its perimeter. The outer filter cylinder includes an inner cylinder, an outer cylinder, and a support plate connecting the inner cylinder and the outer cylinder, arranged coaxially. The inner cylinder is provided with a second filter hole, the diameter of which is larger than that of the first filter hole.

2. The anti-clogging drainage structure for building roofs according to claim 1, characterized in that, Both the inner and outer filter cylinders are circular.

3. The anti-clogging drainage structure for building roofs according to claim 1, characterized in that, The drain hole is a T-shaped hole with an flared top, including a lower small diameter section and an upper large diameter section. The lower end of the inner filter cylinder is inserted into the small diameter section, and the outer filter cylinder is filled into the large diameter section.

4. The anti-clogging drainage structure for building roofs according to claim 3, characterized in that, The tops of both the inner and outer cylinders are higher than the top of the drain hole, and the surface of the support plate is lower than the upper surface of the drain hole.

5. The anti-clogging drainage structure for building roofs according to claim 4, characterized in that, The support plate is connected to the lower middle part of the side wall of the inner cylinder and the outer cylinder, and a second filter hole is provided on both the support plate and the outer cylinder.

6. The anti-clogging drainage structure for building roofs according to claim 3, characterized in that, The inner cylinder, outer cylinder, and support plate are welded and fixed together.

7. The anti-clogging drainage structure for building roofs according to claim 1, characterized in that, The top of the outer cylinder is equipped with a lifting handle.

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