Roof ventilation cap structure

Abstract

The utility model discloses a roof ventilation cap structure, relates to the technical field of ventilation caps, and aims to solve the problem that part of existing ventilation caps cannot have good ventilation and waterproof performance at the same time. According to the technical scheme, the device is characterized by comprising a cover cap located at the top, the bottom of the cover cap is fixedly connected with an inner shielding pipe and an outer shielding pipe which are concentrically arranged and fixed to each other, a breathable ring groove is formed between the inner shielding pipe and the outer shielding pipe in a surrounding mode, and first long-strip-shaped breathable grooves which are distributed in the circumferential direction and communicated with the inner breathable ring groove are formed in the circumferential wall of the outer shielding pipe; second long-strip ventilation grooves which are distributed in the circumferential direction and communicate with the inner ventilation ring grooves are formed in the circumferential wall of the inner shielding pipe, the first long-strip ventilation grooves and the second long-strip ventilation grooves are distributed in a staggered mode, and a plurality of first drainage grooves communicating with the ventilation ring grooves are formed in the portion, close to the bottom, of the outer shielding pipe. Through the arrangement of the structure, the air permeability and the waterproof performance of the whole structure are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of breathable cap technology, and more specifically, to a roof breathable cap structure. Background Technology

[0002] Ventilation caps are typically placed at the top opening of vent pipes to prevent rainwater and other pollutants from directly entering the building through the top opening of the vent pipe.

[0003] Breathable caps are used in many aspects of daily life. However, some existing breathable caps still have some shortcomings. One of these shortcomings is that in order to enhance the overall breathability of the cap, ventilation channels are usually made on the perimeter of the cap. This allows rainwater to easily enter the ventilation tube through these channels when blown by the wind, resulting in poor overall waterproof performance. Therefore, a structure needs to be designed to solve the problem that some existing breathable caps cannot achieve both good breathability and waterproof performance.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a roof ventilation cap structure.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: The roof ventilation cap structure includes a cap located at the top, and the bottom of the cap is fixedly connected to an inner shielding tube and an outer shielding tube that are concentrically arranged and fixed to each other. A ventilation ring groove is provided between the inner shielding tube and the outer shielding tube. A first elongated ventilation groove is circumferentially distributed and communicates with the inner ventilation ring groove on the peripheral wall of the outer shielding tube. A second elongated ventilation groove is circumferentially distributed and communicates with the inner ventilation ring groove on the peripheral wall of the inner shielding tube. The first elongated ventilation groove and the second elongated ventilation groove are staggered. A plurality of first drainage grooves communicating with the ventilation ring groove are provided on the outer shielding tube near the bottom.

[0007] The present invention is further configured such that the first elongated ventilation groove and the second elongated ventilation groove have the same shape and size, and the first elongated ventilation groove and the second elongated ventilation groove are located at the same height and on the side close to the cap.

[0008] The present invention is further configured such that: a V-shaped guide plate facing the first long air vent is fixedly connected to the outer wall of the inner shielding tube, the V-shaped guide plate is vertically arranged and the concave part faces the inner shielding tube.

[0009] The present invention is further configured such that: a plurality of through holes are provided on the V-shaped guide plate; a first non-woven fabric layer is fixedly connected to the V-shaped guide plate to cover the plurality of through holes and to face the first long strip of ventilation groove; and a second drainage groove communicating with the ventilation ring groove is provided between the bottom of the V-shaped guide plate and the inner shielding tube.

[0010] The present invention is further configured such that: a plurality of vertical shielding plates facing the second long air vent are fixedly connected to the inner wall of the outer shielding tube, and the surface of the vertical shielding plates is covered with a second non-woven fabric layer.

[0011] The present invention is further configured such that: the top and bottom of the outer shielding tube and the inner shielding tube 2 are fixedly connected with connecting ring pieces, and a plurality of connecting rods distributed circumferentially and fixed to the cap are fixedly connected to the connecting ring piece located at the top.

[0012] The present invention is further configured such that: a plurality of air inlet grooves communicating with the top opening of the inner shielding tube are provided between the connecting rod, the cap and the connecting ring plate.

[0013] In summary, this utility model has the following beneficial effects:

[0014] Horizontally flowing air enters the air-permeable ring groove through the first long air-permeable groove. Guided by the air-permeable ring groove, some of the flowing air enters the interior of the inner shielding tube along the second long air-permeable groove. During this process, some rainwater carried by the wind wets the outer wall of the inner shielding tube and flows along the outer shielding wall to the bottom of the air-permeable ring groove. Then, under the action of gravity, the rainwater is discharged from the air-permeable ring groove along the first drainage groove, thus enhancing the overall performance of the structure in preventing rainwater from entering the interior of the inner shielding tube. The first and second long air-permeable grooves increase the degree of openness for gas exchange between the interior of the inner shielding tube and the outside, thereby enhancing the overall air permeability of the structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 A cross-sectional view of this utility model Figure 1 ;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 A cross-sectional view of this utility model Figure 2 ;

[0019] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0020] In the diagram: 1. Cap; 2. Inner shielding tube; 3. Outer shielding tube; 4. Ventilation ring groove; 5. First long strip ventilation groove; 6. Second long strip ventilation groove; 7. First drainage groove; 8. V-shaped guide plate; 9. Through hole; 10. First non-woven fabric layer; 11. Second drainage groove; 12. Vertical shielding plate; 13. Second non-woven fabric layer; 14. Connecting ring piece; 15. Connecting rod; 16. Air inlet groove. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] A type of roof ventilator structure, such as Figures 1-3 As shown, the device includes a cap 1 at the top, with an inner shielding tube 2 and an outer shielding tube 3 concentrically connected and fixed to each other at the bottom of the cap 1. A ventilated annular groove 4 surrounds the inner shielding tube 2 and the outer shielding tube. The outer shielding tube 3 has circumferentially distributed first elongated ventilated grooves 5 that communicate with the inner ventilated annular groove 4 on its peripheral wall. The inner shielding tube 2 has circumferentially distributed second elongated ventilated grooves 6 that communicate with the inner ventilated annular groove 4 on its peripheral wall. The first and second elongated ventilated grooves 5 and 6 are staggered. Near the bottom, the outer shielding tube 3 has several first drainage grooves 7 that communicate with the ventilated annular groove 4. Horizontally flowing air will drain from the first elongated ventilated grooves... 5. The air enters the ventilated ring groove 4. Under the guidance of the ventilated ring groove 4, some of the flowing air enters the interior of the inner shielding tube 2 along the second ventilated strip groove. During this process, some rainwater carried by the wind will wet the outer wall of the inner shielding tube 2 and flow along the outer shielding wall to the bottom of the ventilated ring groove 4. Then, under the action of gravity, the rainwater will be discharged from the ventilated ring groove 4 along the first drainage groove 7, which strengthens the overall performance of the structure in preventing rainwater from entering the interior of the inner shielding tube 2. The first and second ventilated strip grooves increase the degree of openness of the interior of the inner shielding tube 2 for gas exchange with the outside, thereby enhancing the overall breathability of the structure.

[0023] like Figures 1-5As shown, the first elongated ventilation groove 5 and the second elongated ventilation groove 6 have the same shape and size. The first elongated ventilation groove 5 and the second elongated ventilation groove 6 are located at the same height and are on the side closer to the cap 1. A V-shaped guide plate 8 facing the first elongated ventilation groove 5 is fixedly connected to the outer wall of the inner shielding tube 2 by welding. The V-shaped guide plate 8 is vertically arranged and the concave part faces the inner shielding tube 2. This arrangement allows the air flowing from the first elongated ventilation groove 5 into the ventilation ring groove 4 to flow towards both sides of the V-shaped guide plate 8 under the guidance of the V-shaped guide plate 8. Then, under the guidance of the ventilation ring groove 4, it enters the second elongated ventilation groove 6 and enters the inner shielding tube 2 better with the help of the second elongated ventilation groove. Then, it enters the ventilation pipe and is sent into the room. The V-shaped guide plate 8 has several through holes 9 arranged in an array. A first non-woven fabric layer 10 is fixedly connected to the V-shaped guide plate 8 to cover several through holes 9 and is directly opposite the first long strip ventilation groove 5. Rainwater carried in the flowing air will wet the first non-woven fabric layer 10. Some of the water that wets the first non-woven fabric layer 10 will pass over the V-shaped guide plate 8 through the through holes 9. A second drainage groove 11 that communicates with the ventilation ring groove 4 is provided between the bottom of the V-shaped guide plate 8 and the inner shielding tube 2. Some of the water that passes over the V-shaped guide plate 8 and some of the water that falls on the V-shaped guide plate 8 will flow downward along the V-shaped guide plate 8 under the action of its own gravity, and then fall to the bottom of the ventilation ring groove and be discharged from the ventilation ring groove 4 through the first drainage groove 7. This enhances the overall rainproof performance of the structure, so that the structure has both breathable performance and good performance in preventing rainwater from entering the inner shielding tube 2.

[0024] like Figures 1-3 As shown, several vertical baffles 12 facing the second long ventilator 6 are fixedly connected to the inner wall of the outer baffle tube 3 by welding. The surface of the vertical baffles 12 is covered with a second non-woven fabric layer 13. The vertical baffles can block and guide the flowing air passing through this area, so that the flowing air can better enter the second long ventilator 6 and the pipe diameter of the inner baffle tube 2. This allows the flowing air flowing from the outside into the ventilator ring groove 4 to be better delivered into the inner baffle tube 2 and the ventilator pipe. With the help of the gaps between the fibers of the second non-woven fabric layer 13, some moisture in the flowing air will enter the second non-woven fabric layer 13, thereby reducing the amount of rainwater brought into the second long ventilator 6 by the flowing air and further enhancing the overall rainproof performance of the structure.

[0025] like Figure 1As shown, the top and bottom of the outer shielding tube 3 and the inner shielding tube 2 are fixedly connected by welding with connecting ring pieces 14. These connecting ring pieces 14 are used to achieve a stable connection between the inner shielding tube 2 and the outer shielding tube 3, thereby ensuring that the ventilated annular groove 4 can be stably enclosed, and ensuring that the ventilated annular groove 4 and the overall structure can stably achieve their functions. Several circumferentially distributed connecting rods 15, which are fixed to the cap 1, are fixedly connected to the connecting ring piece 14 at the top by welding. The connecting rods 15 are fixed to the cap 1 by welding, thus achieving the connection between the cap 1 and the cap 1. The stable connection of the connecting ring makes the position of the cap 1 and its function more stable. Several air inlet grooves 16 are provided between the connecting rod 15, the cap 1 and the connecting ring piece 14, which are interconnected with the top opening of the inner shielding tube 2. The bottom of the air inlet groove 16 is higher than the lower edge of the cap 1, ensuring that the cap 1 can block some of the rainwater blown by the flowing air, reducing the amount of rainwater that passes over the cap 1 and enters the ventilator through the air inlet groove 16, making the overall waterproof performance of the structure better. Some of the flowing air enters the ventilator through the ventilator groove, further enhancing the overall breathability of the structure.

[0026] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A vented cap structure for a roof comprising a cap (1) at the top, characterized in that: The bottom of the cap (1) is fixedly connected to an inner shielding tube (2) and an outer shielding tube (3) that are concentrically arranged and fixed to each other. A ventilating ring groove (4) is provided between the inner shielding tube (2) and the outer shielding tube. A first long strip ventilating groove (5) is provided on the peripheral wall of the outer shielding tube (3) and is circumferentially distributed and communicates with the inner ventilating ring groove (4). A second long strip ventilating groove (6) is provided on the peripheral wall of the inner shielding tube (2) and is circumferentially distributed and communicates with the inner ventilating ring groove (4). The first long strip ventilating groove (5) and the second long strip ventilating groove (6) are staggered. A number of first drainage grooves (7) are provided on the outer shielding tube (3) near the bottom and communicate with the ventilating ring groove (4).

2. The roof ventilation cap structure according to claim 1, characterized in that: The first long strip ventilation groove (5) and the second long strip ventilation groove (6) have the same shape and size. The first long strip ventilation groove (5) and the second long strip ventilation groove (6) are located at the same height and are on the side close to the cap (1).

3. A vented cap structure for a roof according to claim 2, wherein: The outer wall of the inner shielding tube (2) is fixedly connected to a V-shaped guide plate (8) facing the first long strip ventilation groove (5). The V-shaped guide plate (8) is vertically arranged and the concave part faces the inner shielding tube (2).

4. A vented cap structure for a roof according to claim 3, wherein: The V-shaped guide plate (8) has several through holes (9) arranged in an array. A first non-woven fabric layer (10) is fixedly connected to the V-shaped guide plate (8) to cover the several through holes (9) and to face the first long strip ventilation groove (5). A second drainage groove (11) that communicates with the ventilation ring groove (4) is provided between the bottom of the V-shaped guide plate (8) and the inner shielding tube (2).

5. A vented cap structure for a roof according to claim 2, wherein: The inner wall of the outer shielding tube (3) is fixedly connected with several vertical shielding plates (12) facing the second long strip ventilation groove (6), and the surface of the vertical shielding plates (12) is covered with a second non-woven fabric layer (13).

6. A vented cap structure for a roof according to claim 1, wherein: The top and bottom of the outer shielding tube (3) and the inner shielding tube (2) are fixedly connected with connecting ring pieces (14), and a number of connecting rods (15) that are circumferentially distributed and fixed to the cap (1) are fixedly connected to the connecting ring piece (14) at the top.

7. A vented cap structure for a roof according to claim 6, wherein: A plurality of air inlet slots (16) are provided between the connecting rod (15), the cap (1) and the connecting ring (14), which communicate with the top opening of the inner shielding tube (2).

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