Novel hood structure

By incorporating a filter and a rotatable blade structure within the hood, the problem of dust and snow entering the room in traditional hoods is solved, resulting in cleaner air exchange, reduced system blockage, and lower maintenance requirements.

CN224162718UActive Publication Date: 2026-04-24GUANTAO COUNTY LEIXIN SPECIAL STEEL PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANTAO COUNTY LEIXIN SPECIAL STEEL PRODUCTS CO LTD
Filing Date
2025-05-07
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

When traditional hoods introduce outdoor air, dust and snowflakes can easily enter the room, affecting air cleanliness, and melting snowflakes can cause blockages in the ventilation system.

Method used

A novel wind cap structure was designed, comprising a filter and rotatable wind cap blades. The filter is located in the air inlet and outlet areas to filter dust and snowflakes. When the wind cap blades rotate, the filter vibrates to remove snow and dust. The top plate adopts a conical structure to reduce snow accumulation, and the contact head is a ball bearing to reduce jamming.

Benefits of technology

It effectively prevents dust and snow from entering the room, reduces ventilation system blockage, lowers maintenance frequency, reduces the risk of jamming, and improves air quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel wind cap structure which comprises a fixing table and a plurality of wind cap blades, a first support is fixedly connected in the fixing table, a first fixing ring is fixedly connected in the middle of the first support, a fixing rod is rotatably connected in the first fixing ring, and a second fixing ring and a plurality of second supports are fixedly connected on the peripheral side face of the fixing rod. The ends, away from the second fixing ring, of the multiple second supports are fixedly connected with a fixing frame, the multiple hood blades are evenly arranged on the fixing frame, and the ends, away from the fixing frame, of the multiple hood blades are fixedly connected with a top plate. And the dust filtering assembly comprises a filter screen and is used for treating air entering the air cap. According to the utility model, by arranging the support arms, the filter screens and the support rods, when the air cap structure consisting of the air cap blades rotates, the support rods arranged on the inner walls of the filter screens are repeatedly contacted with the support arms, so that the plurality of filter screens are driven to shake, and accumulated snow or dust on the filter screens can be shaken off in the process.
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Description

Technical Field

[0001] This utility model relates to the field of windproof cap technology, and in particular to a novel windproof cap structure. Background Technology

[0002] Ventilation caps serve a dual function in ventilation systems: they can both supply fresh air into a room and expel stale air, depending on their design and installation location within the system. When used to supply air into a room, the vent cap connects to the air supply system, drawing fresh outdoor air into the room through ducts, thereby improving indoor air quality.

[0003] However, in practical applications, traditional wind caps have some shortcomings: on the one hand, when air is introduced from the outside, dust and debris that have not been effectively filtered will directly enter the room, affecting the cleanliness of the indoor air; on the other hand, in snowy weather, snowflakes are easily blown into the wind cap by strong winds, and then the snowflakes melt into water, which may freeze or flow into the duct, hindering the normal operation of the ventilation system. Therefore, a new type of wind cap structure is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel wind cap structure.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a novel wind cap structure, comprising a fixed platform and a plurality of wind cap blades, wherein a first support is fixedly connected inside the fixed platform, a first fixed ring is fixedly connected to the middle part of the first support, a fixed rod is rotatably connected inside the first fixed ring, a second fixed ring and a plurality of second supports are fixedly connected to the periphery of the fixed rod, a fixed frame is fixedly connected to the end of the plurality of second supports away from the second fixed ring, and a plurality of wind cap blades are evenly arranged on the fixed frame, and a top plate is fixedly connected to the end of the plurality of wind cap blades away from the fixed frame; it also includes a dust filter assembly, the dust filter assembly comprising a filter screen for treating the air entering the wind cap.

[0006] As a further description of the above technical solution: the dust filter assembly includes several filter screens, and air inlet and outlet areas are formed between several wind cap blades. Several filter screens are installed in the several air inlet and outlet areas respectively. By setting filter screens in the air inlet and outlet areas, the air entering the wind cap from the outside can be treated to prevent snow and dust from being blown into the wind cap by the wind.

[0007] As a further description of the above technical solution: A detachable third fixing ring is installed on the periphery of the fixing rod, and a support arm is fixedly connected to the outer periphery of the third fixing ring. A rubber sleeve is provided at the end of the support arm away from the third fixing ring, and the rubber sleeve can reduce the noise generated by its contact with the support rod; a support rod is fixedly connected to the inner wall of several filter screens, and a contact head is provided at the end of the support rod away from the filter screen; by setting up the support arm, filter screen and support rod, when the wind cap structure composed of several wind cap blades rotates, the support rod set on the inner wall of the filter screen repeatedly contacts the support arm, thereby causing several filter screens to shake. In this process, the snow or dust on the filter screen can be shaken off, effectively reducing problems such as blockage in the air inlet and outlet areas, and reducing the maintenance cycle.

[0008] As a further description of the above technical solution: there are at least two support arms, the contact heads are ball bearings, and the ball bearings contact the rubber sleeves provided on the support arms. By setting the contact heads as ball bearings, the risk of jamming can be reduced when the ball bearings contact the rubber sleeves.

[0009] As a further description of the above technical solution: the top plate is a conical structure with the sharp end of the conical structure facing upward. By setting the top plate with a conical structure, when it snows or rains, the problem of snow accumulation, which would increase the weight of the wind cap structure and hinder rotation, can be reduced.

[0010] This utility model has the following beneficial effects:

[0011] 1. Compared with the existing technology, this new type of wind cap structure can process the air entering the wind cap from the outside by setting a filter in the air inlet and outlet areas, and prevent snow and dust from being blown into the wind cap by the wind.

[0012] 2. Compared with the existing technology, this new type of wind cap structure, by setting up support arms, filters and support rods, when the wind cap structure composed of several wind cap blades rotates, the support rod set on the inner wall of the filter screen repeatedly contacts the support arm, thereby causing several filters to shake. In this process, the snow or dust on the filter screen can be shaken off.

[0013] 3. Compared with existing technologies, this new type of wind cap structure, by setting a conical top plate, can reduce snow accumulation when it snows or rains, thus reducing the problem of increased wind cap structure weight and hindering rotation. By setting the contact head as a ball, the risk of jamming can be reduced when the ball and the rubber sleeve come into contact. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a novel wind cap structure proposed in this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of a novel wind cap structure proposed in this utility model;

[0016] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0017] Figure 4 This is a partial structural diagram of the filter screen of a novel wind cap structure proposed in this utility model.

[0018] Legend:

[0019] 1. Fixed platform; 2. First bracket; 3. First fixing ring; 4. Fixing rod; 5. Second fixing ring; 6. Second bracket; 7. Fixing frame; 8. Top plate; 9. Wind cap blade; 10. Air inlet and outlet area; 11. Filter screen; 12. Support rod; 13. Contact head; 14. Third fixing ring; 15. Support arm; 16. Rubber sleeve. Detailed Implementation

[0020] 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.

[0021] Reference Figures 1-4 The following embodiments involve a ventilator, which mainly utilizes natural wind and air convection caused by the temperature difference between indoors and outdoors to achieve ventilation. When the wind blows across the ventilator, the special structure of the ventilator will generate a low-pressure area, causing indoor air to be drawn out. At the same time, the temperature difference between indoors and outdoors will also form thermal convection, further promoting air flow, thereby realizing the exchange of indoor and outdoor air.

[0022] This utility model provides a novel wind cap structure, comprising a fixed platform 1 and several wind cap blades 9. A first support 2 is fixedly connected inside the fixed platform 1. A first fixed ring 3 is fixedly connected to the middle part of the first support 2. A fixed rod 4 is rotatably connected inside the first fixed ring 3. A second fixed ring 5 and several second supports 6 are fixedly connected to the periphery of the fixed rod 4. A fixed frame 7 is fixedly connected to one end of the several second supports 6 away from the second fixed ring 5. Several wind cap blades 9 are evenly arranged on the fixed frame 7, and a top plate 8 is fixedly connected to one end of the several wind cap blades 9 away from the fixed frame 7. The structure also includes a dust filter assembly, which includes a filter screen 11 for treating the air entering the wind cap.

[0023] The dust filtration assembly includes several filters 11 and several air inlet and outlet areas 10 formed between several air hood blades 9. Several filters 11 are installed in the air inlet and outlet areas 10 respectively. By setting filters 11 in the air inlet and outlet areas 10, the air entering the air hood from the outside can be treated to prevent snow and dust from being blown into the air hood.

[0024] A detachable third fixing ring 14 is installed on the side wall of the fixing rod 4. A support arm 15 is fixedly connected to the outer side wall of the third fixing ring 14. A rubber sleeve 16 is provided at the end of the support arm 15 away from the third fixing ring 14. The rubber sleeve 16 can reduce the noise generated by its contact with the support rod 12. Support rods 12 are fixedly connected to the inner wall of several filter screens 11. A contact head 13 is provided at the end of the support rod 12 away from the filter screen 11. By setting up the support arm 15, the filter screen 11 and the support rod 12, when the wind cap structure composed of several wind cap blades 9 rotates, the support rod 12 set on the inner wall of the filter screen 11 repeatedly contacts the support arm 15, thereby causing the several filter screens 11 to shake. In this process, the snow or dust on the filter screen 11 can be shaken off, effectively reducing the problem of blockage in the air inlet and outlet area 10 and reducing the maintenance cycle.

[0025] There are at least two support arms 15. The contact head 13 is a ball bearing, and the ball bearing contacts the rubber sleeve 16 provided on the support arm 15. By setting the contact head 13 as a ball bearing, the risk of jamming can be reduced when the ball bearing contacts the rubber sleeve 16.

[0026] The top plate 8 is a conical structure with the sharp end of the conical structure facing upwards. By setting the top plate 8 with a conical structure, snow accumulation can be reduced when it snows or rains, which would increase the weight of the wind cap structure and make it difficult to rotate.

[0027] Working principle: When the hood is used to intake air into the room, the air entering the hood from the outside can be treated by setting a filter 11 in the air intake and exhaust area 10, preventing snow and dust from being blown into the hood by the wind.

[0028] By setting up support arm 15, filter screen 11 and support rod 12, when the wind cap structure composed of several wind cap blades 9 rotates, the support rod 12 set on the inner wall of filter screen 11 repeatedly contacts support arm 15, thereby causing several filter screens 11 to shake. During this process, snow or dust on filter screen 11 can be shaken off.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel wind cap structure, comprising a fixed platform (1) and several wind cap blades (9), characterized in that: The fixed platform (1) is fixedly connected to a first bracket (2), the middle part of the first bracket (2) is fixedly connected to a first fixed ring (3), the first fixed ring (3) is rotatably connected to a fixed rod (4), the fixed rod (4) is fixedly connected to a second fixed ring (5) and several second brackets (6) on its periphery, the ends of several second brackets (6) away from the second fixed ring (5) are fixedly connected to a fixed frame (7), several wind cap blades (9) are evenly arranged on the fixed frame (7), and the ends of several wind cap blades (9) away from the fixed frame (7) are fixedly connected to a top plate (8); it also includes a dust filter assembly, the dust filter assembly includes a filter screen (11) for treating the air entering the wind cap.

2. The novel hood structure according to claim 1, characterized in that: The dust filter assembly includes a plurality of filter screens (11), and an air inlet / outlet area (10) is formed between a plurality of wind cap blades (9), and the plurality of air inlet / outlet areas (10) are respectively installed in the plurality of filter screens (11).

3. The novel hood structure according to claim 2, characterized in that: The fixed rod (4) is equipped with a detachable third fixing ring (14) on its peripheral side wall. The outer peripheral side wall of the third fixing ring (14) is fixedly connected to a support arm (15). A rubber sleeve (16) is provided at the end of the support arm (15) away from the third fixing ring (14).

4. The novel hood structure according to claim 3, characterized in that: Each of the filter screens (11) has a support rod (12) fixedly connected to its inner wall, and a contact head (13) is provided at the end of the support rod (12) away from the filter screen (11).

5. The novel windproof cap structure according to claim 4, characterized in that: There are at least two support arms (15), the contact head (13) is a ball bearing, and the ball bearing contacts the rubber sleeve (16) provided on the support arm (15).

6. The novel hood structure according to claim 4, characterized in that: The top plate (8) is a conical structure, with the sharp end of the conical structure facing upwards.