Wind breaking ventilation cap

Abstract

The wind breaking ventilation cap comprises a lower body connecting pipe, a wind breaking impeller assembly and a rainproof cover, and the bottom of the lower body connecting pipe is connected with the top of a building drainage vertical pipe; a drainage grid is arranged at the upper part of the lower body connecting pipe and is used for draining redundant rainwater entering the lower body connecting pipe into a building drainage vertical pipe; the bottom of the wind breaking impeller assembly is axially arranged on the drainage grating and located on the upper portion of the lower body connecting pipe, the wind breaking impeller assembly is provided with an impeller, the impeller is provided with a plurality of blades arranged in the circumferential direction, and an airflow guide structure is arranged at the bottom of each blade; the rainproof cover is arranged on the top of the wind breaking impeller assembly and rotates along with the wind breaking impeller assembly. The rotatable wind breaking impeller assembly is arranged and driven by wind energy, direct impact of external strong wind on the interior of the drainage stand pipe is effectively blocked and dispersed, and therefore wind noise is avoided.

Description

Technical Field

[0001] The invention relates to the field of building drainage, and in particular to a wind-breaking and breathable cap which is intended to improve drainage efficiency, reduce wind noise and have a windproof function. Background Art

[0002] In the existing building drainage system, the commonly used ventilation devices include the top ventilation cap and the so-called "windproof ventilation cap". Although the top ventilation cap has a simple structure, it lacks a windproof design. In strong wind weather, it is easy to cause pressure fluctuations inside the drainage system, affecting drainage efficiency and possibly generating noise. The so-called "windproof ventilation cap" on the market is actually mainly used to prevent rain rather than wind. It cannot effectively prevent the impact of strong winds from the outside on the drainage riser, and there are also problems of poor drainage and noise.

[0003] Chinese invention patent authorization announcement number CN218008337U discloses a windproof and rainproof breathable cap for a building drainage riser, including a breathable cap body, one end of the breathable cap body is a pipe connection port, and the other end is provided with a breathable cap cover for wind and rain protection, the breathable cap cover includes a breathable cap cover body, and the edge of the breathable cap cover body extends downward to form an extension plate. By adopting the technical solution of the present invention, a breathable cap cover is provided on the port of the breathable cap body, and the breathable cap cover body and the extension plate cover the end cover. Compared with the traditional breathable cap, it can block rainwater and increase the resistance of external wind entering the riser. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the present invention proposes a wind-breaking and breathable cap, which, through a unique structural design, can effectively resist external wind interference while maintaining efficient drainage, significantly reduce wind noise, and improve the overall performance of the building drainage system.

[0005] A wind-breaking breathable cap of the present invention comprises:

[0006] A lower body connecting pipe, the bottom of which is connected to the top of the building drainage riser; a drainage grille is arranged on the upper part of the lower body connecting pipe, the drainage grille is located at the top of the building drainage riser, and the excess rainwater entering the lower body connecting pipe is discharged into the building drainage riser;

[0007] A wind-breaking impeller assembly is arranged on the drainage grille at the bottom axis and is located on the upper part of the lower body connecting pipe, wherein the wind-breaking impeller assembly has an impeller, and the impeller has a plurality of blades arranged circumferentially, and an airflow guide structure is arranged at the bottom of each blade;

[0008] A rain cover is arranged on the top of the wind-breaking impeller assembly, and the rain cover rotates with the wind-breaking impeller assembly.

[0009] In a preferred embodiment of the present invention, the airflow guide structure is a curved portion provided on a side of each blade adjacent to the drainage grille, and the curved portions of the blades are curved in the same direction.

[0010] In a preferred embodiment of the present invention, a hole is provided at the center of the drainage grille, and an elastic shaft is provided at one end of the impeller adjacent to the drainage grille. The elastic shaft is fixed in the hole of the drainage grille in a clamping manner.

[0011] Due to the adoption of the above technical solution, the present invention uses wind energy to drive a rotatable wind-breaking impeller assembly, thereby effectively blocking and dispersing the direct impact of strong external wind on the inside of the drainage riser, thereby avoiding the generation of wind noise.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. Efficient wind protection: The design of the wind-breaking impeller assembly effectively disperses and guides the strong wind from the outside when it contacts the wind-breaking breathable cap, avoiding the influence of wind pressure on the inside of the drainage riser and improving the stability of the drainage system.

[0014] 2. Reduce wind noise: The rotation of the impeller in the wind-breaking impeller assembly reduces the noise generated by the direct impact of the airflow on the drainage riser, thereby improving the comfort of the living environment.

[0015] 3. Improve drainage efficiency: The optimized airflow guide structure ensures the normal ventilation of the drainage system, and keeps the drainage unobstructed even in adverse weather conditions.

[0016] 4. Rainproof function: The integrated rain cover design effectively prevents most rainwater from intruding, ensuring the long-term and stable operation of the drainage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the three-dimensional schematic diagrams of the wind-breaking breathable cap of the present invention.

[0018] Figure 2 This is one of the three-dimensional schematic diagrams of the wind-breaking breathable cap of the present invention.

[0019] Figure 3 It is a cross-sectional view of the wind-breaking breathable cap of the present invention. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] See also Figures 1 to 3 The wind-breaking breathable cap shown in the figure includes a lower body connecting pipe 10, a wind-breaking impeller assembly 20 and a rainproof cover 30.

[0022] The lower body connecting pipe 10 and the wind-breaking impeller assembly 20 are made of light and corrosion-resistant materials, which can be metal materials such as stainless steel or non-metal materials such as plastic.

[0023] The bottom of the lower connecting pipe 10 is connected to the top of the building drainage riser to ensure the sealing and stability of the drainage system; a drainage grille 40 is integrally provided on the upper part of the lower connecting pipe 10. The drainage grille 40 is located at the top of the building drainage riser to drain the very little rainwater entering the lower connecting pipe 10 into the building drainage riser. A hole 41 is provided in the center of the drainage grille 40.

[0024] The wind-breaking impeller assembly 20 has an impeller; the impeller has a plurality of blades 21 arranged circumferentially, and the shape and setting angle of each blade 21 are optimized. After the wind-breaking and breathable cap of the present invention is installed, once it is rainy or windy, as long as there is wind, the impeller of the wind-breaking and breathable cap 20 will rotate, effectively blocking and dispersing the direct impact of strong winds from the outside on the inside of the drainage riser, thereby effectively blocking the outside wind and rain from entering the lower body connecting pipe 10 and entering the drainage system, and will not cause vibration in the building drainage riser in the drainage system, thereby achieving pressure balance in the building drainage riser and avoiding the generation of wind noise.

[0025] In order to facilitate the assembly of the impeller in the wind-breaking impeller assembly 20 onto the drainage grille 40 , an elastic shaft 22 is provided at one end of the impeller adjacent to the drainage grille 40 , and the elastic shaft 22 is axially mounted in the hole 41 of the drainage grille 40 in a clamping manner.

[0026] An airflow guide structure 21a is provided at the bottom of each blade 21; the airflow guide structure 21a is a curved portion provided on one side of each blade 21 adjacent to the drainage grille 40, and the curved portions of all blades are bent in the same direction, so that the airflow guide structure 21a of each blade 21 can guide the airflow passing through the wind-breaking impeller assembly 20 to be discharged along a specific path, further reducing the impact of the airflow on the interior of the drainage riser, while ensuring the normal ventilation requirements of the drainage system.

[0027] The rain cover 30 is arranged on the top of the impeller of the wind-breaking impeller assembly 20 and is integrated with the wind-breaking impeller assembly 20. The rain cover 30 rotates with the impeller in the wind-breaking impeller assembly 20. The rain cover 30 adopts an inclined design, which can effectively block a large amount of rainwater from entering the drainage system, while not affecting the airflow passing through the impeller in the wind-breaking impeller assembly 20.

Claims

1. A wind-breaking breathable cap, characterized in that: include: A lower connecting pipe, the bottom of which is connected to the top of the building drainage riser; A drainage grille is provided on the upper part of the lower body connecting pipe, and the drainage grille is located on the top of the building drainage riser to discharge the excess rainwater entering the lower body connecting pipe into the building drainage riser; A wind-breaking impeller assembly is arranged on the drainage grille and is located on the upper part of the lower body connecting pipe, wherein the wind-breaking impeller assembly has an impeller, and the impeller has a plurality of blades arranged circumferentially, and an airflow guide structure is arranged at the bottom of each blade; A rain cover is arranged on the top of the wind-breaking impeller assembly, and the rain cover rotates with the wind-breaking impeller assembly.

2. The wind-breaking breathable cap according to claim 1, characterized in that: The airflow guide structure is a curved portion arranged on one side of each blade adjacent to the drainage grille, and the curved portions of the blades are curved in the same direction.

3. The wind-breaking breathable cap according to claim 1, characterized in that A hole is arranged at the center of the drainage grille, and an elastic rotating shaft is arranged at one end of the impeller adjacent to the drainage grille. The elastic rotating shaft is arranged in the hole of the drainage grille in a clamping manner.

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