Siphon type rainwater drainage system for roof building

Abstract

The utility model relates to the technical field of funnels, in particular to a siphoning type rainwater drainage system for a roof building. The device comprises a mounting cylinder, a cover plate, a filter screen, a push rod, a first elastic telescopic assembly and a limiting mechanism, a mounting panel is arranged at the upper end of the mounting cylinder; the cover plate and the filter screen are located on the inner side of the mounting cylinder, and the cover plate is located above the filter screen; the first elastic telescopic assembly comprises a first sleeve, a first movable rod and a second spring; a limiting ring is arranged at the upper part of the first sleeve; a first spring sleeves the first sleeve; the limiting mechanism comprises a second elastic telescopic assembly and a wedge-shaped block; the push rod is vertically connected to the lower end of the cover plate. According to the technical scheme, the filter screen can be rapidly taken out from the inner side of the mounting cylinder, so that impurities on the surface of the filter screen can be conveniently cleaned, the continuous filtering effect of the filter screen is guaranteed, manual participation is not needed in the whole taking-out process, pollution to the hands of operators is avoided, and the device is safer and more sanitary.

Description

Technical Field

[0001] This utility model relates to the field of funnel technology, and in particular to a siphonic rainwater drainage system for roof buildings. Background Technology

[0002] In recent years, siphon drainage technology has been gradually applied to roofing projects due to its high-efficiency drainage characteristics. It accelerates the drainage flow rate by forming negative pressure, which can theoretically significantly improve drainage efficiency. The siphon rainwater hopper is composed of a stainless steel base, a stainless steel clamping ring, and a flow guide cover. The siphon rainwater hopper is mainly used for roof drainage.

[0003] In the prior art, in order to prevent the drainage pipe from getting blocked, a filter screen is usually installed in the drainage funnel. Over time, the filter screen will get blocked, and the operator will need to bend over to remove the filter screen, which is time-consuming and laborious, and will also get the operator's hands dirty. Utility Model Content

[0004] The purpose of this utility model is to address the problems existing in the background technology by proposing a siphonic rainwater drainage system for roof buildings.

[0005] The technical solution of this utility model is a siphonic rainwater drainage system for roof buildings, including an installation cylinder, a cover plate, a filter screen, a push rod, a first elastic telescopic component, and a limiting mechanism;

[0006] The upper end of the mounting cylinder is equipped with a mounting panel, and the upper end of the mounting cylinder is flush with the lower end of the mounting cylinder. The bottom end of the mounting cylinder is connected to the drain pipe. The cover plate and the filter screen are both located inside the mounting cylinder. Several drainage holes are opened on the cover plate, and the cover plate is located above the filter screen. The first elastic telescopic component includes a first sleeve, a first movable rod, and a second spring. The top end of the first movable rod is slidably installed inside the first sleeve along the length direction of the first sleeve. The bottom end of the first movable rod is fixedly connected to the inner wall of the mounting cylinder. The second spring is installed inside the first sleeve. The upper end of the first sleeve movably passes through the cover plate and is connected to a limiting head. A through hole is opened on the cover plate for the first sleeve to pass through. The filter screen is fixedly installed on the first sleeve. A limiting ring is provided on the upper part of the first sleeve. The first spring is sleeved on the first sleeve and is located between the cover plate and the limiting ring. The limiting mechanism includes a second elastic telescopic component and a wedge block. The second elastic telescopic component is connected to the inner wall of the mounting cylinder, and the wedge block is connected to the end of the second elastic telescopic component. An annular limiting groove is opened on the first sleeve. A push rod is vertically connected to the lower end of the cover plate and movably passes through the filter screen.

[0007] Preferably, the filter screen has an inverted conical bucket structure.

[0008] Preferably, the second elastic telescopic component includes a second sleeve, a second movable rod, and a third spring. The second sleeve is connected to the inner wall of the mounting cylinder. The end of the second movable rod is slidably mounted on the inner side of the second sleeve along the length direction of the second sleeve. The outer end of the second movable rod is connected to the wedge block. The third spring is located on the inner side of the second sleeve.

[0009] Preferably, the spring constant of the second spring is greater than that of the first spring.

[0010] Preferably, the cross-section of the perforation is "T" shaped.

[0011] Preferably, a sealing ring is installed on the periphery of the cover plate.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects: the present invention can remove the filter screen from the inside of the installation cylinder more quickly, thereby facilitating the cleaning of impurities on the surface of the filter screen to ensure the continuous filtration effect of the filter screen. Moreover, no manual intervention is required during the entire removal process, thus avoiding contamination of the operator's hands and making it safer and more hygienic. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the mounting cylinder in this utility model.

[0015] Figure 3 This is a schematic diagram of the cover plate in this utility model.

[0016] Figure 4 This is a cross-sectional view of the first elastic telescopic component in this utility model.

[0017] Figure 5 This is a cross-sectional view of the second elastic telescopic component in this utility model.

[0018] Reference numerals in the attached drawings: 1. Mounting cylinder; 101. Drain pipe; 2. Mounting panel; 3. Cover plate; 301. Perforation; 4. Filter screen; 5. First sleeve; 501. Annular limiting groove; 6. First movable rod; 7. Sealing ring; 8. Second sleeve; 9. Second movable rod; 10. Wedge block; 11. Push rod; 12. Limiting ring; 13. First spring; 14. Limiting head; 15. Second spring; 16. Third spring. Detailed Implementation

[0019] Example 1

[0020] like Figures 1-5 As shown in the figure, the roof building siphon rainwater drainage system proposed in this embodiment includes an installation cylinder 1, a cover plate 3, a filter screen 4, a push rod 11, a first elastic telescopic component, and a limiting mechanism.

[0021] The upper end of the mounting cylinder 1 is provided with a mounting panel 2, the upper end of the mounting cylinder 1 is flush with the upper end of the mounting cylinder 1, and the bottom end of the mounting cylinder 1 is connected to the drain pipe 101.

[0022] Both the cover plate 3 and the filter screen 4 are located inside the mounting cylinder 1. The cover plate 3 has several holes and is located above the filter screen 4. A sealing ring 7 is installed on the periphery of the cover plate 3. The first elastic telescopic component includes a first sleeve 5, a first movable rod 6, and a second spring 15. The top end of the first movable rod 6 is slidably installed inside the first sleeve 5 along the length of the first sleeve 5. The bottom end of the first movable rod 6 is fixedly connected to the inner wall of the mounting cylinder 1. The second spring 15 is installed inside the first sleeve 5. The upper end of the first sleeve 5 movably passes through the cover plate 3 and is connected to a limiting head 14. The cover plate 3 has a through hole 301 for the first sleeve 5 to pass through. The cross-section of the through hole 301 is "T" shaped. The filter screen 4 is fixedly installed on the first sleeve 5. A limiting ring 12 is provided on the upper part of the first sleeve 5. A first spring 13 is sleeved on the first sleeve 5. The first spring 13 is located between the cover plate 3 and the limiting ring 12. The stiffness coefficient of the second spring 15 is greater than that of the first spring 13.

[0023] The limiting mechanism includes a second elastic telescopic component and a wedge block 10. The second elastic telescopic component is connected to the inner wall of the mounting cylinder 1. The second elastic telescopic component includes a second sleeve 8, a second movable rod 9, and a third spring 16. The second sleeve 8 is connected to the inner wall of the mounting cylinder 1. The end of the second movable rod 9 is slidably installed on the inner side of the second sleeve 8 along the length direction of the second sleeve 8. The outer end of the second movable rod 9 is connected to the wedge block 10. The third spring 16 is located on the inner side of the second sleeve 8. The wedge block 10 is connected to the end of the second elastic telescopic component. An annular limiting groove 501 is provided on the first sleeve 5. The push rod 11 is vertically connected to the lower end of the cover plate 3 and moves through the filter screen 4.

[0024] In this embodiment, the cover plate 3 can perform coarse filtration of the water, while the filter screen 4 can perform further fine filtration of the water. When cleaning the filter screen 4, the operator steps down on the cover plate 3, but it should be noted that the bottom of the foot should not touch the limiting head 14. The cover plate 3 moves downward, driving the push rod 11 to move. The push rod 11 squeezes the inclined surface of the wedge block 10, thereby forcing the end of the wedge block 10 to move out from the inside of the annular limiting groove 501. Since the stiffness coefficient of the second spring 15 is large, after the first sleeve 5 is released from the limiting position, the second spring 15 is in a compressed state. Under the elastic force of the second spring 15, the first sleeve 5 is driven to move upward a certain distance. As the foot separates from the cover plate 3, under the elastic force of the second spring 15, the first sleeve 5 continues to move until the filter screen 4 is moved out from the inside of the mounting cylinder 1. Then the operator can clean the impurities on the filter screen 4 with a cleaning tool.

[0025] After the cleaning work is completed, the operator will put his toes into contact with the limiting head 14 and push the first sleeve 5 downward, thereby moving the cover plate 3. When the cover plate 3 is flush with the mounting panel 2, the end of the wedge block 10 will be inserted into the annular limiting groove 501, thus completing the limiting work of the first sleeve 5.

[0026] Example 2

[0027] like Figure 2 As shown in the figure, the siphonic rainwater drainage system for roof buildings proposed in this embodiment has an inverted conical structure for the filter screen 4 compared to the first embodiment. This arrangement can increase the filtration area of ​​the filter screen 4 and allow impurities on the filter screen 4 to slide down and accumulate on its periphery, thereby delaying the cleaning cycle.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A siphonic rainwater drainage system for roof buildings, characterized in that, Includes mounting cylinder (1), cover plate (3), filter screen (4), push rod (11), first elastic telescopic component and limiting mechanism; The upper end of the mounting cylinder (1) is provided with a mounting panel (2), the upper end of the mounting cylinder (1) is flush with the upper end of the mounting cylinder (1), and the bottom end of the mounting cylinder (1) is connected to the drain pipe (101); the cover plate (3) and the filter screen (4) are both located inside the mounting cylinder (1), and several drainage holes are opened on the cover plate (3), which is located above the filter screen (4); the first elastic telescopic component includes a first sleeve (5), a first movable rod (6) and a second spring (15), the top end of the first movable rod (6) is slidably installed inside the first sleeve (5) along the length direction of the first sleeve (5), the bottom end of the first movable rod (6) is fixedly connected to the inner wall of the mounting cylinder (1), the second spring (15) is installed inside the first sleeve (5), and the upper end of the first sleeve (5) movably passes through the cover plate (3). The cover plate (3) is connected to a limiting head (14), and a through hole (301) is provided on the cover plate (3) for the first sleeve (5) to pass through. The filter screen (4) is fixedly installed on the first sleeve (5). A limiting ring (12) is provided on the upper part of the first sleeve (5), and a first spring (13) is sleeved on the first sleeve (5). The first spring (13) is located between the cover plate (3) and the limiting ring (12). The limiting mechanism includes a second elastic telescopic component and a wedge block (10). The second elastic telescopic component is connected to the inner wall of the mounting cylinder (1), and the wedge block (10) is connected to the end of the second elastic telescopic component. An annular limiting groove (501) is provided on the first sleeve (5). The push rod (11) is vertically connected to the lower end of the cover plate (3), and the push rod (11) moves through the filter screen (4).

2. The siphonic rainwater drainage system for roof buildings according to claim 1, characterized in that, The filter (4) has an inverted conical bucket structure.

3. The siphonic rainwater drainage system for roof buildings according to claim 1, characterized in that, The second elastic telescopic component includes a second sleeve (8), a second movable rod (9), and a third spring (16). The second sleeve (8) is connected to the inner wall of the mounting cylinder (1). The end of the second movable rod (9) is slidably installed on the inner side of the second sleeve (8) along the length direction of the second sleeve (8). The outer end of the second movable rod (9) is connected to the wedge block (10). The third spring (16) is located on the inner side of the second sleeve (8).

4. A siphonic rainwater drainage system for roof buildings according to claim 1, characterized in that, The spring constant of the second spring (15) is greater than that of the first spring (13).

5. A siphonic rainwater drainage system for roof buildings according to claim 1, characterized in that, The cross-section of the perforation (301) is "T" shaped.

6. A roof building siphon rainwater drainage system according to claim 1, characterized in that, A sealing ring (7) is installed on the periphery of the cover plate (3).

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