Rainwater collecting and filtering device for courtyard

Abstract

The utility model relates to the technical field of rainwater treatment equipment, and discloses a courtyard rainwater collecting and filtering device which comprises a PVC base pipe, the PVC base pipe is provided with a water inlet end, a sediment end and a drainage end, and the drainage end is located between the water inlet end and the sediment end; a filter element of an annular structure is assembled in the PVC base pipe, the two axial ends of the filter element face the water inlet end and the sediment end respectively, and the filter element covers the drainage end. When rainwater enters the PVC base pipe, the filter element of the annular structure provides a flowing channel for the rainwater, the flowing speed of the rainwater is guaranteed, and the rainwater collecting and filtering efficiency is improved; the drainage end is covered by the filter element, so that water drained by the drainage end can be filtered by the filter element, and the quality of the water drained by the drainage end can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of rainwater treatment equipment, specifically to a rainwater collection and filtration device for courtyards. Background Technology

[0002] With population growth and the rapid expansion of industrial and agricultural production, water scarcity is becoming increasingly severe. Furthermore, heavy or continuous rainfall exceeding drainage capacity can lead to flooding disasters, such as severe urban waterlogging. Therefore, rainwater harvesting and utilization has gradually become a focus of attention.

[0003] To achieve rainwater harvesting, existing technology has proposed a device suitable for rainwater harvesting, as detailed in Chinese patent document CN105971058A, published on September 28, 2016, entitled "A Rainwater Collection, Storage and Filtration Device." This device includes a vertical cylindrical body with a horizontal outlet at the bottom. Inside the cylinder is a filter screen with a diameter equal to the inner diameter of the cylinder. The filter screen is positioned below or above the height of the cylinder, with its lower end covering the outlet. Rainwater is filtered through the filter screen within the vertical cylinder. The multi-layered filter structure with different pore sizes first intercepts larger impurities, then filters smaller particles, ensuring the quality of the collected rainwater. A handle and slide rail designed for the filter screen facilitate its removal for cleaning. However, during the use of this technology, all impurities remain on the filter cylinder, which can easily affect the flow rate of rainwater and result in low rainwater collection efficiency. In order not to affect the flow rate of rainwater, the filter cylinder needs to be cleaned frequently, which is time-consuming and labor-intensive. Utility Model Content

[0004] The technical objective of this invention is to provide a rainwater harvesting and filtration device for courtyards with high rainwater harvesting and filtration efficiency, addressing the shortcomings of the existing technology.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A rainwater collection and filtration device for a courtyard includes a PVC base pipe, the PVC base pipe having a water inlet end, a sediment end and a drain end, the drain end being located between the water inlet end and the sediment end;

[0007] The PVC base pipe is equipped with a ring-shaped filter element, with its two axial ends facing the water inlet and the sediment end, respectively, and the filter element covering the drain end.

[0008] In the above technical measures, rainwater enters the PVC base pipe through the inlet end. Some rainwater flows towards the outlet end, where impurities are intercepted by the filter element. The filtered rainwater is then discharged through the outlet end. Some rainwater flows towards the sediment end, where it is retained. Impurities in the rainwater settle to the bottom of the sediment end due to gravity, achieving initial filtration. As the amount of rainwater in the sediment end increases, some rainwater comes into contact with the filter element for secondary filtration. When the level of the retained rainwater reaches the outlet end, the secondary filtered rainwater is discharged through the outlet end.

[0009] In the above-mentioned technical measures, when rainwater enters the PVC base pipe, the annular filter element provides a flow channel for the rainwater, which helps to ensure the flow speed of the rainwater and improve the efficiency of rainwater collection and filtration. By covering the drainage end with the filter element, it can be ensured that the water discharged from the drainage end is filtered by the filter element, which helps to ensure the quality of the water discharged from the drainage end.

[0010] Furthermore, the PVC base pipe has a first straight pipe section, a first reducing pipe section, a tee pipe section, a second reducing pipe section, and a second straight pipe section that are detachably connected in sequence.

[0011] The tee section has a third straight pipe section and a fourth straight pipe section with a T-fit. The two axial ends of the third straight pipe section are connected to the first straight pipe section and the second straight pipe section respectively through the first reducing pipe section and the second reducing pipe section. The fourth straight pipe section is used for drainage.

[0012] The diameter of the third straight pipe section is greater than the diameters of the first straight pipe section and the second straight pipe section.

[0013] The PVC base pipe described above has a first straight pipe section, a first reducing pipe section, a tee pipe section, a second reducing pipe section, and a second straight pipe section that are detachably connected in sequence. The structure is simple, easy to form, and facilitates the disassembly and assembly of each component. By setting the first and second reducing pipe sections, the filter element can be limited, ensuring the filtration effect of the filter element while making the disassembly and assembly of the filter element convenient. Moreover, the filter element can be limited without relying on external fixing devices, which helps to reduce costs and avoid damage to the filter element caused by external fixing devices during use, thus extending the service life of the filter element.

[0014] Furthermore, the connections between the first reducing pipe section and the first straight pipe section and the third straight pipe section are all sealed with PVC glue.

[0015] Furthermore, the connections between the second reducing pipe section and the third straight pipe section, as well as the second straight pipe section, are all sealed with PVC glue.

[0016] In the above technical measures, the connections between the first reducing pipe section and the first straight pipe section and the third straight pipe section, as well as the connections between the second reducing pipe section and the third straight pipe section and the second straight pipe section, are all sealed with PVC glue. Using PVC glue to seal each connection not only ensures the sealing performance of each connection but also helps to reduce costs. The PVC glue can prevent water leakage at each connection, ensure the stability of the rainwater collection and filtration device, and improve work efficiency.

[0017] Furthermore, the end of the second straight pipe section away from the second reducing pipe section is provided with a detachable sealing cap.

[0018] In the above-mentioned technical measures, the end of the second straight pipe section away from the second reducing pipe section is provided with a detachable sealing cap, which makes it easy to open the sealing cap to clean the impurities in the second straight pipe section, thus improving convenience.

[0019] Furthermore, the end of the first straight pipe section away from the first reducing pipe section is detachably connected to a guide pipe section that bends and engages with the first straight pipe section. The guide pipe section is used to direct rainwater to the first straight pipe section.

[0020] The above-mentioned technical measures, by setting up guiding pipe sections, enable the rainwater collection and filtration device to adapt to different environmental conditions, which helps to improve flexibility.

[0021] Furthermore, the filter element has a multi-layer structure, including a coarse filter layer and a fine filter layer arranged sequentially from the inside out.

[0022] The above-mentioned technical measures, by setting up a multi-layered filter element, can effectively enhance the filtration capacity of the filter element and ensure the quality of the discharged water.

[0023] Furthermore, the coarse filter layer is a spinneret structure made of HDPE.

[0024] In the above technical measures, the coarse filter layer is a spinneret structure made of HDPE, which can effectively filter impurities in rainwater and at the same time give the coarse filter layer good performance, which is conducive to extending the service life of the coarse filter layer.

[0025] Furthermore, the fine filter layer is a filter cloth covering the outside of the coarse filter layer, and the pore size of the fine filter layer is smaller than that of the coarse filter layer.

[0026] In the above technical measures, the fine filter layer is a filter cloth covering the outside of the coarse filter layer. The pore size of the fine filter layer is smaller than that of the coarse filter layer. Larger impurities are filtered by the coarse filter layer, and smaller impurities are filtered by the fine filter layer. This can improve the filtration accuracy and filtration efficiency, while also reducing the burden on the fine filter layer and extending its service life.

[0027] Furthermore, the filter element is a PVC pipe with multiple through holes along the circumferential direction.

[0028] In the above technical measures, the filter element is a PVC pipe with multiple through holes along the circumference, which is easy to process and helps to save costs while meeting structural strength and ensuring filtration effect.

[0029] One or more technical solutions provided by this utility model have at least the following technical effects or advantages:

[0030] In this invention, rainwater enters the PVC base pipe through the inlet end. Some rainwater flows towards the outlet end, where impurities are intercepted by the filter element. The filtered rainwater is then discharged through the outlet end. Other rainwater flows towards the sediment end, where it is retained. Impurities in the rainwater settle to the bottom of the sediment end due to gravity, achieving initial filtration. As the amount of rainwater in the sediment end increases, some rainwater comes into contact with the filter element for secondary filtration. When the level of the retained rainwater reaches the outlet end, the secondary filtered rainwater is discharged through the outlet end.

[0031] In this invention, when rainwater enters the PVC base pipe, the annular filter element provides a flow channel for the rainwater, which helps to ensure the flow speed of the rainwater and improve the efficiency of rainwater collection and filtration. By covering the drain end with the filter element, it can be ensured that all water discharged from the drain end is filtered by the filter element, which helps to ensure the quality of the water discharged from the drain end. Attached Figure Description

[0032] The accompanying drawings, which are provided to further illustrate the embodiments of the present invention and constitute a part of the present invention, do not constitute a limitation thereof.

[0033] Figure 1 This is a schematic diagram of the structure of this utility model;

[0034] Figure 2 This is a side view of the present invention;

[0035] Figure 3 yes Figure 1 Schematic diagram of the structure at point AA;

[0036] Among them, 1-first straight pipe section; 2-first reducing pipe section; 3-third straight pipe section; 4-fourth straight pipe section; 5-coarse filter layer; 6-second reducing pipe section; 7-second straight pipe section; 8-sealing cap; 9-fine filter layer; 10-tee pipe section. Detailed Implementation

[0037] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments of this utility model and the features within them can be combined with each other.

[0038] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0039] Example 1

[0040] Reference Figures 1-3 This embodiment provides a rainwater collection and filtration device for a courtyard, including a PVC base pipe. The PVC base pipe has a water inlet end, a sediment end and a drain end, with the drain end located between the water inlet end and the sediment end.

[0041] The PVC base pipe is equipped with a ring-shaped filter element inside, with the two axial ends of the filter element facing the water inlet and the sediment end respectively, and the filter element covering the drain end.

[0042] The PVC base pipe has a first straight pipe section 1, a first reducing pipe section 2, a tee pipe section 10, a second reducing pipe section 6, and a second straight pipe section 7 that are detachably connected in sequence.

[0043] The tee section 10 has a third straight pipe section 3 and a fourth straight pipe section 4 with a T-fit. The two ends of the third straight pipe section 3 are connected to the first straight pipe section 1 and the second straight pipe section 7 respectively through the first reducing pipe section 2 and the second reducing pipe section 6. The fourth straight pipe section 4 is used for drainage.

[0044] The diameter of the third straight pipe section 3 is greater than the diameters of the first straight pipe section 1 and the second straight pipe section 7.

[0045] The connections between the first reducing pipe section 2 and the first straight pipe section 1 and the third straight pipe section 3 are all sealed with PVC glue.

[0046] The connections between the second reducing pipe section 6 and the third straight pipe section 3 and the second straight pipe section 7 are all sealed with PVC glue.

[0047] The second straight pipe section 7 is provided with a detachable sealing cap 8 at the end away from the second reducing pipe section 6.

[0048] The sealing cap 8 is detachably connected to the second straight pipe section 7 via threads.

[0049] The end of the first straight pipe section 1 away from the first reducing pipe section 2 is detachably connected to a guide pipe section that bends to fit the first straight pipe section 1. The guide pipe section is used to direct rainwater to the first straight pipe section 1.

[0050] The filter element has a multi-layer structure, including a coarse filter layer 5 and a fine filter layer 9 arranged sequentially from the inside out. The coarse filter layer 5 is a spinneret structure made of HDPE, and the fine filter layer 9 is a filter cloth covering the outside of the coarse filter layer 5. The pore size of the fine filter layer 9 is smaller than that of the coarse filter layer 5.

[0051] The dimensions and other parameters of the coarse filter layer 5 and the fine filter layer 9 are designed according to actual needs, and this embodiment does not impose specific limitations.

[0052] In application, rainwater enters the first straight pipe section 1 through the guide pipe section, then enters the third straight pipe section 3 through the first reducing pipe section 2. Some rainwater flows towards the fourth straight pipe section 4, where impurities are intercepted by the coarse filter layer 5 and the fine filter layer 9. The filtered rainwater is then discharged through the fourth straight pipe section 4. Some rainwater flows towards the second straight pipe section 7, passing through the second reducing pipe section 6 and reaching the second straight pipe section 7. The rainwater remains in the second straight pipe section 7, where impurities settle to the bottom due to gravity, achieving initial filtration. As the amount of rainwater in the second straight pipe section 7 increases, some rainwater comes into contact with the coarse filter layer 5 and the fine filter layer 9 for secondary filtration. When the remaining rainwater reaches the fourth pipe section 4, the secondary filtered rainwater is discharged through the fourth pipe section 4. Rainwater is collected by connecting a water storage device to the outside of the fourth pipe section 4. Depending on actual usage needs, the water storage device can be a farmland water storage system and / or a water cellar.

[0053] Example 2

[0054] The rest of the content of this embodiment is the same as that of embodiment 1, except that:

[0055] The filter element is a PVC pipe with multiple through holes along the circumference.

[0056] The number and size of through holes are designed according to actual needs, and this embodiment does not impose specific limitations.

[0057] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0058] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A rainwater collection and filtration device for courtyards, characterized in that: The PVC base pipe includes a water inlet end, a sediment end, and a drain end, wherein the drain end is located between the water inlet end and the sediment end. The PVC base pipe is equipped with a ring-shaped filter element, with its two axial ends facing the water inlet and the sediment end, respectively, and the filter element covering the drain end.

2. The rainwater collection and filtration device for courtyards according to claim 1, characterized in that: The PVC base pipe has a first straight pipe section (1), a first reducing pipe section (2), a tee pipe section (10), a second reducing pipe section (6), and a second straight pipe section (7) that are detachably connected in sequence. The tee section (10) has a third straight pipe section (3) and a fourth straight pipe section (4) with a T-fit. The two ends of the third straight pipe section (3) are connected to the first straight pipe section (1) and the second straight pipe section (7) respectively through the first variable diameter pipe section (2) and the second variable diameter pipe section (6). The fourth straight pipe section (4) is used for drainage. The diameter of the third straight pipe section (3) is greater than the diameters of the first straight pipe section (1) and the second straight pipe section (7).

3. The rainwater collection and filtration device for courtyards according to claim 2, characterized in that: The connection points between the first reducing pipe section (2) and the first straight pipe section (1) and the third straight pipe section (3) are all sealed with PVC glue.

4. The rainwater collection and filtration device for courtyards according to claim 2, characterized in that: The connection between the second reducing pipe section (6) and the third straight pipe section (3) and the second straight pipe section (7) is sealed with PVC glue.

5. The rainwater collection and filtration device for courtyards according to claim 2, characterized in that: The second straight pipe section (7) is provided with a detachable sealing cap (8) at the end away from the second reducing pipe section (6).

6. The rainwater collection and filtration device for courtyards according to claim 2, characterized in that: The first straight pipe section (1) is detachably connected to a guide pipe section that bends and fits with the first straight pipe section (1) at one end away from the first reducing pipe section (2). The guide pipe section is used to guide rainwater to the first straight pipe section (1).

7. The rainwater collection and filtration device for courtyards according to claim 1, characterized in that: The filter element has a multi-layer structure, including a coarse filter layer (5) and a fine filter layer (9) arranged sequentially from the inside out.

8. The rainwater collection and filtration device for courtyards according to claim 7, characterized in that: The coarse filter layer (5) is a spinneret structure made of HDPE.

9. The rainwater collection and filtration device for courtyards according to claim 8, characterized in that: The fine filter layer (9) is a filter cloth covering the outside of the coarse filter layer (5), and the pore size of the fine filter layer (9) is smaller than that of the coarse filter layer (5).

10. The rainwater collection and filtration device for courtyards according to claim 1, characterized in that: The filter element is a PVC pipe with multiple through holes along the circumference.

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