Filtering device for building water supply and drainage

Abstract

The utility model discloses a filtering device for building water supply and drainage, and relates to the technical field of filtering devices, the filtering device comprises a filtering assembly, the filtering assembly comprises a first filtering unit, a second filtering unit and a third filtering unit; the first filtering unit is used for filtering and intercepting large impurities; the second filtering unit is used for filtering and intercepting smaller impurities; and when more impurities are accumulated in the second filtering unit to cause reduction of the filtering effect, subsequent filtering is performed through the third filtering unit. According to the rainwater drainage pipe, large-size impurities and small-particle impurities in rainwater can be filtered through the filtering assembly, the particle impurities in the rainwater are effectively prevented from entering the drainage pipe, and compared with a traditional single-layer filtering structure, through a double-layer filtering structure composed of the first filtering cylinder and the second filtering cylinder, the rainwater drainage pipe is more convenient to use. The service time of the filtering function of the filtering device can be further prolonged, and the filtering effect can be kept for a longer time.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, specifically a filtration device for building water supply and drainage. Background Technology

[0002] The rainwater drainage system in a building's water supply and drainage system is mainly responsible for collecting and discharging rainwater from the building's roof and a certain area around it. It includes roof rainwater hoppers, rainwater downpipes, and discharge pipes, which quickly discharge rainwater from the roof to the outside to prevent roof leaks and water accumulation from damaging the building.

[0003] To prevent impurities from entering the drain pipe, a filter device is installed at the roof drain outlet to filter out the accumulated impurities in the rainwater, thus ensuring the smooth flow of the drain pipe. However, most existing filter devices are single-layer filter structures, which can become clogged due to the large amount of impurities filtered out in a short period of time. Therefore, in order to further improve the filtration life of the drain pipe filter device, a filter device for building water supply and drainage is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a filtration device for building water supply and drainage in order to solve the problems mentioned above.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a filtration device for building water supply and drainage, comprising a filtration assembly for performing filtration operations at the drain pipe port, the filtration assembly comprising a first filtration unit, a second filtration unit, and a third filtration unit;

[0006] The first filtration unit is used to filter and intercept larger impurities;

[0007] The second filtration unit is used to filter and intercept smaller impurities;

[0008] When a large amount of impurities accumulate inside the second filtration unit, causing a reduction in filtration efficiency, subsequent filtration is performed through the third filtration unit to further extend the drainage filtration effect.

[0009] As a further embodiment of this utility model: the first filter unit includes a cover plate and a spherical grid cover;

[0010] The spherical grille cover is composed of multiple arc-shaped steel wires, which are arranged in a ring and fixed to the top of the cover plate. When the cover plate is closed at the port of the drain pipe, the spherical grille cover intercepts and filters larger impurities in the roof water.

[0011] As a further embodiment of this utility model: the second filter unit includes a first threaded connection part and a first filter cylinder;

[0012] The first threaded connection is fixed to the bottom of the cover plate, and the first filter cylinder is threaded to the outside of the first threaded connection.

[0013] The cover plate has a conical guide port integrally formed in the middle. The bottom of the conical guide port extends to the inside of the first filter cylinder. Rainwater filtered by the spherical grid cover enters the inside of the first filter cylinder through the conical guide port, and the first filter cylinder filters out smaller impurities in the rainwater.

[0014] As a further embodiment of this utility model: the third filter unit includes a second threaded connection part and a second filter cylinder;

[0015] The second threaded connection is fixed to the bottom of the cover plate and is distributed outside the first threaded connection. The second filter cylinder is threaded to the outside of the second threaded connection and is distributed outside the first filter cylinder.

[0016] An overflow port is provided near the top of the first filter cylinder. When a lot of impurities accumulate inside the first filter cylinder, causing a reduction in the filtration effect, the water level inside the first filter cylinder rises and flows into the second filter cylinder through the overflow port for subsequent filtration.

[0017] As a further embodiment of this utility model: the inner diameter of the second filter cylinder is greater than the outer diameter of the first filter cylinder, the inner height of the second filter cylinder is greater than the height of the first filter cylinder, and the outer diameter of the second filter cylinder is smaller than the inner diameter of the drain pipe.

[0018] As a further improvement of this utility model, the bottom edge of the conical guide port is at a lower horizontal height than the top of the overflow port.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] By setting up a filter assembly, larger volume impurities and small particulate impurities in rainwater can be filtered out, effectively preventing particulate impurities in rainwater from entering the drain pipe. Compared with the traditional single-layer filter structure, the double-layer filter structure composed of the first filter cartridge and the second filter cartridge can further extend the service life of the filter device and maintain the filtration effect for a longer period of time. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the filter component of this utility model in the state of being connected to the drain pipe;

[0022] Figure 2 This is a disassembled schematic diagram of the filter assembly of this utility model;

[0023] Figure 3 This is a cross-sectional view of the filter assembly of this utility model;

[0024] Figure 4 This is a cross-sectional exploded view of the filter component of this utility model.

[0025] In the figure: 1. Filter assembly; 101. Cover plate; 102. Spherical grid cover; 103. First threaded connection; 104. Second threaded connection; 105. Conical guide port; 106. First filter cylinder; 107. Overflow port; 108. Second filter cylinder; 2. Drain pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-4 In this embodiment of the present invention, a filtration device for building water supply and drainage includes a filtration component 1 for performing filtration operations at the port of the drain pipe 2. The filtration component 1 includes a first filtration unit, a second filtration unit, and a third filtration unit.

[0028] The first filtration unit is used to filter and intercept larger impurities;

[0029] The second filtration unit is used to filter and intercept smaller impurities;

[0030] When a large amount of impurities accumulate inside the second filter unit, causing a reduction in the filtration effect, the third filter unit is used for subsequent filtration to further extend the drainage filtration effect.

[0031] The first filter unit includes a cover plate 101 and a spherical grid cover 102;

[0032] The spherical grid cover 102 is composed of multiple arc-shaped steel wires, which are arranged in a ring and fixed to the top of the cover plate 101. When the cover plate 101 is closed at the port of the drain pipe 2, the spherical grid cover 102 intercepts and filters larger impurities in the roof water.

[0033] The second filter unit includes a first threaded connection part 103 and a first filter cylinder 106;

[0034] The first threaded connection part 103 is fixed to the bottom of the cover plate 101, and the first filter cylinder 106 is threaded to the outside of the first threaded connection part 103;

[0035] The cover plate 101 has a conical guide port 105 integrally formed in the middle. The bottom of the conical guide port 105 extends to the inside of the first filter cylinder 106. Rainwater filtered by the spherical grid cover 102 enters the inside of the first filter cylinder 106 through the conical guide port 105, and the first filter cylinder 106 filters out smaller impurities in the rainwater.

[0036] The third filter unit includes a second threaded connection 104 and a second filter cylinder 108;

[0037] The second threaded connection 104 is fixed to the bottom of the cover plate 101 and is distributed outside the first threaded connection 103. The second filter cylinder 108 is threaded to the outside of the second threaded connection 104 and is distributed outside the first filter cylinder 106.

[0038] An overflow port 107 is provided around the periphery of the first filter cylinder 106 near the top. When a lot of impurities accumulate inside the first filter cylinder 106, causing the filtration effect to be reduced, the water level inside the first filter cylinder 106 rises and flows into the second filter cylinder 108 through the overflow port 107, where it is then filtered further.

[0039] In this embodiment: When using this filter device, the first filter cylinder 106 is first threadedly connected to the first threaded connection part 103 and the second filter cylinder 108 is threadedly connected to the second threaded connection part 104 in sequence. Then, the device is placed at the drain pipe 2 port, and its cover plate 101 covers the surface of the drain pipe 2 port. The spherical grid cover 102 protrudes from the roof, while the first filter cylinder 106 and the second filter cylinder 108 are distributed inside the drain pipe 2.

[0040] When it rains, rainwater from the roof is drained downwards through the drain pipe 2. During this process, the spherical grid cover 102 intercepts and filters large impurities (such as leaves and branches) mixed in with the rainwater. The rainwater that has passed through the first filter will flow into the first filter cylinder 106 through the conical guide 105. After the first filter cylinder 106 filters out small particles of impurities, it will then pass through the second filter cylinder 108 and enter the drain pipe 2. During this process, small particles of impurities are intercepted inside the first filter cylinder 106.

[0041] When a large amount of impurities accumulate inside the first filter cylinder 106, the filtration effect of the first filter cylinder 106 is impaired. At this time, the water level inside the first filter cylinder 106 rises. When the water level inside the first filter cylinder 106 rises to the overflow port 107, the rainwater flows directly into the second filter cylinder 108 through the overflow port 107, and then enters the drain pipe 2 after being filtered by the second filter cylinder 108. At this time, small particulate impurities in the rainwater will be intercepted and accumulated inside the second filter cylinder 108.

[0042] With the cooperation of the above components, particulate impurities in rainwater can be effectively prevented from entering the drain pipe 2. Compared with the traditional single-layer filter structure, the double-layer filter structure composed of the first filter cylinder 106 and the second filter cylinder 108 can further extend the service life of the filter device and maintain the filtration effect for a longer time.

[0043] When a large amount of impurities accumulate inside the second filter cartridge 108, the device can be removed, and the second filter cartridge 108 and the first filter cartridge 106 can be disassembled in sequence to clean the second filter cartridge 108 and the first filter cartridge 106. The overall operation is simple and convenient.

[0044] Please refer to this carefully. Figures 1-4 The inner diameter of the second filter cylinder 108 is greater than the outer diameter of the first filter cylinder 106, the inner height of the second filter cylinder 108 is greater than the height of the first filter cylinder 106, and the outer diameter of the second filter cylinder 108 is smaller than the inner diameter of the drain pipe 2.

[0045] In this embodiment: This structure allows for a gap between the second filter cartridge 108, the first filter cartridge 106, and the drain pipe 2, so as to facilitate the smooth flow of rainwater.

[0046] Please refer to this carefully. Figures 1-4 The bottom edge of the tapered guide port 105 is at a lower horizontal level than the top of the overflow port 107.

[0047] In this embodiment, the conical guide port 105 allows rainwater to flow into the first filter cylinder 106 without overflowing port 107, thus enabling the first filter cylinder 106 to perform filtration first. Only when the filtration effect of the first filter cylinder 106 weakens and the rainwater level rises will it flow into the second filter cylinder 108 through overflowing port 107, thereby ensuring the order of use of the first filter cylinder 106 and the second filter cylinder 108.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A filtration device for building water supply and drainage, comprising a filter assembly (1) for performing filtration operations at the port of a drain pipe (2), characterized in that, The filter assembly (1) includes a first filter unit, a second filter unit, and a third filter unit; The first filtration unit is used to filter and intercept larger impurities; The second filtration unit is used to filter and intercept smaller impurities; When a large amount of impurities accumulate inside the second filtration unit, causing a reduction in filtration efficiency, subsequent filtration is performed through the third filtration unit to further extend the drainage filtration effect.

2. A filtration device for building water supply and drainage according to claim 1, characterized in that, The first filter unit includes a cover plate (101) and a spherical grid cover (102). The spherical grid cover (102) is composed of multiple arc-shaped steel wires, which are arranged in a ring and fixed on the top of the cover plate (101). When the cover plate (101) is closed at the port of the drain pipe (2), the spherical grid cover (102) intercepts and filters larger impurities in the roof water.

3. A filtration device for building water supply and drainage according to claim 2, characterized in that, The second filter unit includes a first threaded connection (103) and a first filter cartridge (106). The first threaded connection part (103) is fixed to the bottom of the cover plate (101), and the first filter cylinder (106) is threaded to the outside of the first threaded connection part (103); The cover plate (101) has a conical guide port (105) integrally formed in the middle. The bottom of the conical guide port (105) extends to the inside of the first filter cylinder (106). Rainwater filtered by the spherical grid cover (102) enters the inside of the first filter cylinder (106) through the conical guide port (105) and filters smaller impurities in the rainwater through the first filter cylinder (106).

4. A filtration device for building water supply and drainage according to claim 3, characterized in that, The third filter unit includes a second threaded connection (104) and a second filter cylinder (108). The second threaded connection (104) is fixed to the bottom of the cover plate (101) and distributed outside the first threaded connection (103). The second filter cylinder (108) is threaded to the outside of the second threaded connection (104) and distributed outside the first filter cylinder (106). The first filter cylinder (106) has an overflow port (107) near the top. When a lot of impurities accumulate inside the first filter cylinder (106) and the filtration effect is reduced, the water level inside the first filter cylinder (106) rises and flows into the second filter cylinder (108) through the overflow port (107) for subsequent filtration.

5. A filtration device for building water supply and drainage according to claim 4, characterized in that, The inner diameter of the second filter cylinder (108) is greater than the outer diameter of the first filter cylinder (106), the inner height of the second filter cylinder (108) is greater than the height of the first filter cylinder (106), and the outer diameter of the second filter cylinder (108) is smaller than the inner diameter of the drain pipe (2).

6. A filtration device for building water supply and drainage according to claim 4, characterized in that, The bottom edge of the conical guide (105) is at a lower level than the top of the overflow (107).

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