Filtering and discharging device for rainwater

Abstract

The utility model discloses a rainwater filtering and discharging device, relates to the technical field of rainwater filtering, and aims to solve the problems that a filter body of an existing centrifugal rainwater filter is easy to rotate, rub and damage and poor in stability when being impacted by rainwater, and time and labor are wasted as the filter body needs to go deep into the filter during maintenance. A connecting cylinder body is arranged at the lower end of the water inlet cylinder body, a filtering cylinder body is arranged at the lower end of the connecting cylinder body, and a sewage discharging cylinder body is arranged at the lower end of the filtering cylinder body; the filter body is arranged in the filter cylinder, a lower pressing plate is arranged at the upper end of the filter body, the lower pressing plate and the filter body are of an integrated structure, and filter holes are formed in the surface of the filter body; the connecting columns are arranged at the upper ends of the two sides of the lower pressing plate, threaded columns are arranged on the lower surfaces of the connecting columns, and the connecting columns are in threaded connection with the lower pressing plate through the threaded columns; and the protective cover plate is arranged outside the upper end of the connecting column.

Description

Technical Field

[0001] The utility model relates to the technical field of rainwater filtration, in particular to a rainwater filtering and discharging device. Background Art

[0002] A centrifugal rainwater filter is a type of rainwater filter. When rainwater enters the filter through the inlet, the water flow is guided along the tangent direction of the filter inner wall into the cylinder. Under the action of hydraulic force and gravity, the rainwater forms a vortex around the inner wall of the filter. The vortex of rainwater generates centrifugal force to penetrate the filter screen, filtering out clean rainwater and flowing out through the outlet.

[0003] For example, the Chinese patent with announcement number CN202724800U (a centrifugal rainwater collection filter) comprises a cylindrical shell, which is composed of an upper shell and a lower shell fixed together. A rainwater inlet pipe is tangentially arranged on the upper part of the upper shell, and a clean water outlet is arranged on the side of the lower shell. A cylindrical filter is arranged in the shell, and the cylindrical filter is arranged concentrically with the shell. The gap between the cylindrical filter and the shell forms a clean water collection chamber, and a debris outlet is arranged at the bottom of the lower shell. The utility model has a simple structure and is easy to use and maintain. It can quickly separate debris such as leaves from rainwater and remove them from the filter, which can fully reuse rainwater and save water resources.

[0004] However, the filter body of the existing centrifugal rainwater filter is easily damaged by rotation friction when impacted by rainwater, and has poor stability. In addition, when performing maintenance, it is necessary to go deep into the filter, which is time-consuming and labor-intensive. Therefore, it does not meet the existing needs. In this regard, we have proposed a rainwater filtering and discharge device. Utility Model Content

[0005] The purpose of the present utility model is to provide a rainwater filtering and draining device to solve the problems in the above-mentioned background technology that the filter body of the existing centrifugal rainwater filter is easily damaged by rotation friction when impacted by rainwater, has poor stability, and requires deep inspection and maintenance to be carried out, which is time-consuming and labor-intensive.

[0006] To achieve the above object, the present invention provides the following technical solution: a rainwater filtering and draining device, comprising: a water inlet cylinder, a connecting cylinder provided at the lower end of the water inlet cylinder, a filtering cylinder provided at the lower end of the connecting cylinder, and a sewage discharge cylinder provided at the lower end of the filtering cylinder;

[0007] Also includes:

[0008] A filter body is provided inside the filter cylinder, a lower pressure plate is provided on the upper end of the filter body, and the lower pressure plate and the filter body are an integral structure, and a filter hole is provided on the surface of the filter body;

[0009] Connecting columns are provided at the upper ends of both sides of the lower pressing plate, and threaded columns are provided on the lower surfaces of the connecting columns, and the threaded columns are threadedly connected to the lower pressing plate;

[0010] A protective cover plate is arranged outside the upper end of the connecting column. A through hole is provided at the connection between the protective cover plate and the connecting column, and one end of the connecting column having a threaded column passes through the through hole.

[0011] Preferably, a limiting head is provided on the upper end surface of the connecting column, and the limiting head and the connecting column are an integral structure, and there are two connecting columns.

[0012] Preferably, an arc-shaped rainwater bucket is provided inside the sewage discharge cylinder, an arc-shaped bucket is provided inside the arc-shaped rainwater bucket, and a limiting connecting plate is provided at the upper end of the arc-shaped bucket.

[0013] Preferably, a threaded connection groove is provided inside the limiting connection plate, and the arc-shaped bucket is threadedly connected to the threaded connection groove.

[0014] Preferably, a base is provided at the lower end of the sewage cylinder, and the base and the sewage cylinder are an integrated structure, a mounting groove is provided inside the base, an inspection bottom cover is provided inside the mounting groove, and the inspection bottom cover is threadedly connected to the mounting groove.

[0015] Preferably, a threaded connection ring seat is provided at the upper end of the water inlet cylinder, a sealing cover is provided at the upper end of the threaded connection ring seat, and the sealing cover is threadedly connected to the threaded connection ring seat.

[0016] Preferably, a water inlet is provided on one side of the water inlet cylinder, a water outlet is provided on one side of the filter cylinder, and a sewage outlet is provided on the front surface of the sewage discharge cylinder.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model provides connecting posts at the upper ends of both sides of the lower pressure plate, and the lower pressure plate is placed on the upper end of the inner part of the connecting cylinder to play a role in limiting and preventing falling. The connecting post has one end of a threaded post passing through the through hole, and the threaded post also passes through the lower pressure plate and is threadedly connected to the connecting cylinder, fixing the lower pressure plate to avoid position displacement, improving stability, and preventing damage from rotational friction. When the filter body needs to be cleaned and repaired, it is only necessary to open the sealing cover. The threaded post is not only threadedly connected to the connecting cylinder, but also to the lower pressure plate. Loosen the connecting post, separate the connecting post from the connecting cylinder, pull the protective cover plate upwards, and the connecting post and the lower pressure plate have a connecting force, so that the filter body can be taken out, saving time and effort.

[0019] 2. By setting a threaded connection groove inside the limiting connection plate, the arc bucket is threadedly connected to the threaded connection groove, which facilitates the disassembly of the arc bucket, and the arc rainwater bucket can be split into the arc bucket and the limiting connection plate, thereby improving the convenience of cleaning the arc bucket. An installation groove is set inside the base, and the inspection bottom cover is threadedly connected to the installation groove. The arc bucket can be easily disassembled by opening the inspection bottom cover, without having to go deep into the cylinder from top to bottom, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the overall internal structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the connection structure between the protective cover plate and the connecting column of the utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the limit connecting plate and the arc bucket of the utility model;

[0024] In the figure: 1. Water inlet cylinder; 2. Filter cylinder; 3. Sewage discharge cylinder; 4. Connecting cylinder; 5. Base; 6. Water inlet; 7. Drainage outlet; 8. Sewage outlet; 9. Threaded connection ring seat; 10. Sealing cover; 11. Protective cover plate; 12. Connecting column; 13. Filter body; 14. Filter hole; 15. Lower pressure plate; 16. Arc-shaped rainwater bucket; 17. Arc-shaped bucket; 18. Limiting connecting plate; 19. Inspection bottom cover; 20. Mounting groove; 21. Threaded column; 22. Limiting head; 23. Through hole; 24. Threaded connection groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] See also Figure 1-4 The utility model provides an embodiment: a rainwater filtering and draining device, comprising: a water inlet cylinder 1, a connecting cylinder 4 is provided at the lower end of the water inlet cylinder 1, a filtering cylinder 2 is provided at the lower end of the connecting cylinder 4, and a sewage discharge cylinder 3 is provided at the lower end of the filtering cylinder 2;

[0027] Also includes:

[0028] The filter body 13 is disposed inside the filter cylinder 2. A lower pressing plate 15 is provided at the upper end of the filter body 13. The lower pressing plate 15 and the filter body 13 are integrally formed. The surface of the filter body 13 is provided with filter holes 14.

[0029] The connecting column 12 is provided at the upper end of both sides of the lower pressing plate 15. The lower surface of the connecting column 12 is provided with a threaded column 21, and the threaded column 21 is threadedly connected to the lower pressing plate 15;

[0030] The protective cover plate 11 is arranged on the outside of the upper end of the connecting column 12. A through hole 23 is provided at the connection between the protective cover plate 11 and the connecting column 12, and the connecting column 12 has one end of a threaded column 21 passing through the through hole 23. A limiting head 22 is provided on the upper end face of the connecting column 12, and the limiting head 22 and the connecting column 12 are an integrated structure. There are two connecting columns 12, and an arc-shaped rainwater bucket 16 is provided inside the sewage cylinder 3. An arc-shaped bucket 17 is provided inside the arc-shaped rainwater bucket 16, and a limiting connecting plate 18 is provided on the upper end of the arc-shaped bucket 17.

[0031] When the filter body 13 needs to be cleaned and repaired, it is only necessary to open the sealing cover 10. The threaded column 21 is not only threadedly connected to the connecting cylinder 4, but also threadedly connected to the lower pressure plate 15. Loosen the connecting column 12, the connecting column 12 is separated from the connecting cylinder 4, and pull the protective cover 11 upward. The connecting column 12 and the lower pressure plate 15 have a connecting force, so that the filter body 13 can be taken out, saving time and effort.

[0032] See also Figure 2 、 4 A threaded connection groove 24 is provided inside the limiting connection plate 18, and the arc bucket 17 is threadedly connected to the threaded connection groove 24, which facilitates the disassembly of the arc bucket 17, and realizes the splitting of the arc rainwater bucket 16 into the arc bucket 17 and the limiting connection plate 18, thereby improving the convenience of cleaning the arc bucket 17.

[0033] See also Figure 2 A base 5 is provided at the lower end of the sewage cylinder 3, and the base 5 and the sewage cylinder 3 are an integrated structure. A mounting groove 20 is provided inside the base 5, and an inspection bottom cover 19 is provided inside the mounting groove 20, and the inspection bottom cover 19 is threadedly connected to the mounting groove 20. By opening the inspection bottom cover 19, it is convenient to disassemble the arc bucket 17 without having to go deep into the cylinder from top to bottom, thereby improving convenience.

[0034] See also Figure 1 、 2 A threaded connection ring seat 9 is provided at the upper end of the water inlet cylinder 1, and a sealing cover 10 is provided at the upper end of the threaded connection ring seat 9. The sealing cover 10 is threadedly connected to the threaded connection ring seat 9 to seal the water inlet cylinder 1.

[0035] See also Figure 1 A water inlet 6 is provided on one side of the water inlet cylinder 1, a drain outlet 7 is provided on one side of the filter cylinder 2, and a drain outlet 8 is provided on the front surface of the sewage discharge cylinder 3 for water intake, drainage and sewage discharge.

[0036] Working principle: When in use, the filter body 13 is passed from top to bottom along the opening of the threaded connection ring seat 9 through the water inlet cylinder 1 into the interior of the filter cylinder 2, and the lower pressure plate 15 is placed on the upper end of the interior of the connecting cylinder 4 to limit and prevent it from falling. The connecting column 12 has one end of the threaded column 21 passing through the through hole 23, and the threaded column 21 also passes through the lower pressure plate 15 and is threadedly connected to the connecting cylinder 4 to fix the lower pressure plate 15, thereby fixing the filter body 13. When rainwater enters the water inlet cylinder 1 from the water inlet 6, the water flow is guided to enter the water inlet cylinder 1 along the tangent direction of the inner wall of the filter. Under the action of hydraulic force, gravity, etc., rainwater is formed to pass through the filter cylinder 1. The inner wall of the filter body 13 is surrounded by a vortex, and the rainwater vortex generates centrifugal force to penetrate the filter hole 14, filtering out clean rainwater, and flowing out from the drain port 7. Impurities in the rainwater settle downward under the action of gravity, and rely on the arc bucket 17 to accelerate the vortex downward and be discharged from the sewage outlet 8. When the filter body 13 needs to be cleaned and repaired, it is only necessary to open the sealing cover 10. The threaded column 21 is not only threadedly connected to the connecting cylinder 4, but also threadedly connected to the lower pressure plate 15. Loosen the connecting column 12, the connecting column 12 is separated from the connecting cylinder 4, and pull the protective cover plate 11 upward. The connecting column 12 and the lower pressure plate 15 have a connecting force, so that the filter body 13 can be taken out, saving time and effort.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A rainwater filtering and draining device, comprising a water inlet cylinder (1), a connecting cylinder (4) provided at the lower end of the water inlet cylinder (1), a filtering cylinder (2) provided at the lower end of the connecting cylinder (4), and a sewage discharge cylinder (3) provided at the lower end of the filtering cylinder (2); Its characteristics are: Also includes: A filter body (13) is arranged inside the filter cylinder (2); a lower pressure plate (15) is provided at the upper end of the filter body (13); the lower pressure plate (15) and the filter body (13) are an integral structure; and a filter hole (14) is provided on the surface of the filter body (13); Connecting columns (12) are arranged at the upper ends of both sides of the lower pressing plate (15), and the lower surface of the connecting columns (12) is provided with threaded columns (21), and the threaded columns (21) are threadedly connected to the lower pressing plate (15); A protective cover plate (11) is arranged outside the upper end of the connecting column (12); a through hole (23) is provided at the connection between the protective cover plate (11) and the connecting column (12); and one end of the threaded column (21) of the connecting column (12) passes through the through hole (23).

2. A rainwater filtering and draining device according to claim 1, characterized in that: The upper end surface of the connecting column (12) is provided with a limiting head (22), and the limiting head (22) and the connecting column (12) are an integral structure, and two connecting columns (12) are provided.

3. A rainwater filtering and draining device according to claim 1, characterized in that: An arc-shaped rainwater bucket (16) is provided inside the sewage discharge cylinder (3), an arc-shaped bucket (17) is provided inside the arc-shaped rainwater bucket (16), and a limiting connection plate (18) is provided at the upper end of the arc-shaped bucket (17).

4. A rainwater filtering and draining device according to claim 3, characterized in that: A threaded connection groove (24) is provided inside the position-limiting connection plate (18), and the arc-shaped bucket (17) is threadedly connected to the threaded connection groove (24).

5. The rainwater filtering and draining device according to claim 1, characterized in that: A base (5) is provided at the lower end of the sewage discharge cylinder (3), and the base (5) and the sewage discharge cylinder (3) are an integrated structure. A mounting groove (20) is provided inside the base (5), and an inspection bottom cover (19) is provided inside the mounting groove (20), and the inspection bottom cover (19) is threadedly connected to the mounting groove (20).

6. The rainwater filtering and draining device according to claim 1, characterized in that: The upper end of the water inlet cylinder (1) is provided with a threaded connection ring seat (9), the upper end of the threaded connection ring seat (9) is provided with a sealing cover (10), and the sealing cover (10) is threadedly connected to the threaded connection ring seat (9).

7. The rainwater filtering and draining device according to claim 1, characterized in that: A water inlet (6) is provided on one side of the water inlet cylinder (1), a water outlet (7) is provided on one side of the filter cylinder (2), and a sewage outlet (8) is provided on the front surface of the sewage discharge cylinder (3).

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