CN-224215488-U - Low-power high-air-volume air ventilator for air film

CN224215488UCN 224215488 UCN224215488 UCN 224215488UCN-224215488-U

Abstract

The utility model relates to the technical field of air film buildings and discloses a low-power high-air-volume air film ventilation device which comprises an air film, wherein an air inlet pipe and an air exhaust pipe are fixedly sleeved on the air film respectively, the air inlet pipe is positioned below the air exhaust pipe, cavities are respectively formed in the right sides of inner cavities of the air inlet pipe and the air exhaust pipe, a servo motor is fixedly arranged at the bottom of the cavities, a first rotating shaft is fixedly connected to an output shaft of the servo motor through a shaft coupling, the first rotating shaft is movably sleeved on the top of the cavities, a first bevel gear is uniformly and fixedly sleeved on the first rotating shaft, a second bevel gear is in epitaxial engagement with the first bevel gear, the second bevel gear is fixedly sleeved on the left part of the second bevel gear, a transmission mechanism is driven by the servo motor to adjust the opening and closing angle of a ventilation grid, ventilation quantity is adjusted, ventilation resistance is reduced, static pressure of the fan is reduced, a large amount of consumption of static pressure of the pipeline is avoided, and ventilation air volume of the device is greatly improved under the same power.

Inventors

ZHAO MENG
HOU ZE
SUN LIPENG
LIU RUILI
Jing Lujing
CUI JIAN
LIAN SHILONG

Assignees

河南汉杰伊膜结构工程有限公司

Dates

Publication Date: 20260508
Application Date: 20250519

Claims (4)

1. The ventilation device for the low-power high-air-volume air film comprises an air film (1) and is characterized in that an air inlet pipe (2) and an exhaust pipe (3) are fixedly sleeved on the air film (1) respectively, the air inlet pipe (2) is located below the exhaust pipe (3), cavities (4) are respectively formed in the right sides of inner cavities of the air inlet pipe (2) and the exhaust pipe (3), a servo motor (5) is fixedly arranged at the bottom of each cavity (4), a first rotating shaft (6) is fixedly connected to an output shaft of the servo motor (5) through a coupler, a first bevel gear (7) is uniformly and fixedly sleeved on the first rotating shaft (6) and is in epitaxial engagement with a second bevel gear (8), a second rotating shaft (9) is fixedly sleeved on the left part of each bevel gear, and a second rotating shaft (9) and the inner cavities of the air inlet pipe (2) and the exhaust pipe (3) are movably sleeved on the second rotating shaft (9), and a second ventilating grating (10) is fixedly sleeved on the second rotating shaft (9).
2. The ventilation device for the low-power high-air-volume air film is characterized in that connecting rods (11) are fixedly arranged on the upper portion and the lower portion of the inner cavity of an air inlet pipe (2) and the inner cavity of an exhaust pipe (3), the connecting rods (11) are positioned right behind a ventilation grid (10), a permanent magnet synchronous motor (12) is fixedly arranged between the two connecting rods (11), a fan blade (13) is fixedly connected to an output shaft of the permanent magnet synchronous motor (12) through a coupler, and the fan blade (13) is made of carbon fibers and the thickness from the root to the tip of the fan blade decreases.
3. The ventilation device for the low-power high-air-volume air film according to claim 2, wherein a filter plate (14) is arranged in an inner cavity of the air inlet pipe (2) and between the ventilation grid (10) and the fan blades (13), a filter screen (15) is fixedly arranged in the middle of the filter plate (14), a cover plate (16) is fixedly arranged at the right part of the filter plate (14), armrests (17) are fixedly arranged at the right part of the cover plate (16), fillets (18) are respectively and fixedly arranged at the upper part and the lower part of the filter plate (14), grooves I (19) are formed in the tops of the fillets (18), and the number of the grooves I (19) is two.
4. The ventilation device for the low-power high-air-volume air film is characterized in that sliding grooves (20) are respectively formed in the upper portion and the lower portion of an inner cavity of the air inlet pipe (2), the sliding grooves (20) are matched with the fillets (18), grooves two (21) are formed in the tops of the sliding grooves (20) on the upper portion, the number of the grooves two (21) is two and respectively correspond to that of the grooves one (19), threaded rods (22) are movably sleeved in the grooves two (21), knobs (23) are fixedly arranged at the top ends of the threaded rods (22) and are located above the air inlet pipe (2), limiting blocks (24) are movably connected to the bottom ends of the threaded rods (22) through bearings, and the limiting blocks (24) are clamped with the grooves one (19).

Description

Low-power high-air-volume air ventilator for air film Technical Field The utility model relates to the technical field of air film buildings, in particular to a low-power high-air-volume air ventilator for an air film. Background The air film building is a building structure system which uses special building film materials as a shell and is provided with electromechanical equipment to provide positive pressure of air in the air film building so as to support a building main body, and the core principle is that the air pressure is utilized to support the film body, a traditional beam column frame is not needed, the film materials are usually made of high-strength polyester fiber base cloth composite coating materials, and the air film building has the advantages of light weight, flexibility, durability and light transmittance, can effectively reduce self weight of the building, enables the span of a single building to reach hundreds of meters, and breaks through the space limitation of the traditional building. In the prior art, the air film building is provided with the ventilation device, so that air in the air film building and air outside circulate, and the grille is arranged at the air inlet, but the angle of the grille is basically forty-five degrees, and cannot be flexibly adjusted, so that the ventilation quantity of the ventilation device is fixed, and when a fan mechanism pushes the same air quantity, the power requirement is larger, and the energy consumption of the device is increased. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides the ventilation device for the low-power high-air-volume air film, which is characterized in that the servo motor drives the transmission mechanism to adjust the opening and closing angle of the ventilation grid, so that the ventilation quantity is adjusted, the ventilation resistance is reduced, the power requirement of a fan is reduced, the static pressure of a pipeline is avoided from being greatly consumed, the comprehensive energy consumption of the device is reduced, and the ventilation air volume of the device is greatly improved under the same power. The utility model provides a low-power high-air-volume air film ventilation device which comprises an air film, wherein an air inlet pipe and an air exhaust pipe are fixedly sleeved on the air film respectively, the air inlet pipe is positioned below the air exhaust pipe, cavities are respectively formed in the right sides of inner cavities of the air inlet pipe and the air exhaust pipe, a servo motor is fixedly arranged at the bottom of the cavities, a first rotating shaft is fixedly connected to an output shaft of the servo motor through a coupler, the first rotating shaft is movably sleeved on the top of the cavity, a first bevel gear is uniformly and fixedly sleeved on the first rotating shaft, a second bevel gear is in epitaxial engagement with the first bevel gear, a second rotating shaft is fixedly sleeved on the left part of the second bevel gear, the second rotating shaft is movably sleeved with the inner cavities of the air inlet pipe and the air exhaust pipe, a ventilation grid is fixedly sleeved on the second rotating shaft, the ventilation grid is adjusted through a transmission mechanism driven by the servo motor, ventilation resistance is reduced, the power requirement of the fan is reduced, and a large amount of consumption of static pressure of the pipeline is avoided, so that the ventilation device is greatly improved under the same power. Preferably, the upper part and the lower part of the inner cavity of the air inlet pipe and the inner cavity of the exhaust pipe are respectively fixedly provided with a connecting rod, the connecting rods are positioned right behind the ventilation grid, a permanent magnet synchronous motor is fixedly arranged between the two connecting rods, the output shaft of the permanent magnet synchronous motor is fixedly connected with a fan blade through a coupler, the fan blade is made of carbon fiber, the thickness of the root part of the blade is reduced to the thickness of the tip end, the permanent magnet synchronous motor in the air inlet pipe and the inner cavity of the exhaust pipe are respectively started, the permanent magnet synchronous motor drives the fan blade to rotate, the air inlet and the exhaust pipe are respectively realized, the low-speed torque of the permanent magnet synchronous motor is improved, the waste of high power and low load is avoided, the air pressure is improved under the condition of being favorable for the same air quantity, the thickness of the root part of the fan blade is reduced to the tip end, the rotational inertia moment is reduced, and the starting power is reduced. Preferably, a filter plate is arranged in the inner cavity of the air inlet pipe and between the ventilation grid and the fan blades, a filter screen is fixedly arranged in the middle of the filter plate, a cover pl