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CN-224214448-U - Sound-proof housing for axial fan

CN224214448UCN 224214448 UCN224214448 UCN 224214448UCN-224214448-U

Abstract

The utility model relates to an axial fan noise treatment related technical field, an embodiment of the disclosure provides a sound-proof housing for axial fan, it includes parcel shell and cover of giving vent to anger, the cover of giving vent to anger sets up at parcel shell outer end, turn to coupling assembling and set up between parcel shell and cover of giving vent to anger, the bracket is all fixed inside parcel shell, the fixed mounting subassembly sets up on parcel shell, the subassembly of making an uproar is set up inside parcel shell and cover of giving vent to anger, the fixed mounting subassembly includes a pair of fixed block, the fixed block sets up respectively at parcel shell surface opposite both ends, fixed block internal rotation suit is connected with the tensioning screw, tensioning screw one end is connected with the pressure strip through screw-thread fit. Through above-mentioned technical scheme, solved among the prior art high-speed rotation of fan impeller, motor operation and the friction between air current and the fan part, axial fan's noise probably overlaps with other equipment noise, forms the technical problem of high strength noise environment.

Inventors

  • ZHANG LIKUN

Assignees

  • 石家庄红叶风机有限公司

Dates

Publication Date
20260508
Application Date
20250604

Claims (9)

  1. 1. A sound-proof housing for an axial flow fan, comprising: the device comprises a wrapping shell (1) and an air outlet cover (2), wherein the air outlet cover (2) is arranged at the outer end of the wrapping shell (1); The steering connection assembly (6) is arranged between the wrapping shell (1) and the gas outlet cover (2); The device comprises a plurality of brackets (3) and fixed mounting assemblies (4), wherein the brackets (3) are fixed inside the package shell (1), and the fixed mounting assemblies (4) are arranged on the package shell (1); The noise reduction assembly (5) is arranged inside the wrapping shell (1) and the air outlet cover (2); the fixed mounting assembly (4) comprises a pair of fixed blocks (4-1), the fixed blocks (4-1) are respectively arranged at two opposite ends of the outer surface of the wrapping shell (1), the fixed blocks (4-1) are connected with tensioning screws (4-2) in a rotating sleeve manner, and one ends of the tensioning screws (4-2) are connected with pressing plates (4-3) through threaded fit.
  2. 2. The sound-proof housing for the axial flow fan according to claim 1, wherein a pair of openings (4-4) are formed in the outer end face of the package housing (1), the pressing plate (4-3) is located in the openings (4-4), a pair of guide rods (4-5) are arranged on the surface of the fixing block (4-1), and one end of each guide rod (4-5) is connected with the pressing plate (4-3) in a sliding sleeved mode.
  3. 3. The sound-proof housing for the axial flow fan according to claim 1, wherein the noise-reduction assembly (5) comprises sound-absorbing cotton (5-1), the sound-absorbing cotton (5-1) is attached to the inner surface of the package housing (1) for one circle, a butt joint housing (5-2) is arranged on the outer surface of the package housing (1), and an ejection layer (5-3) is arranged on the inner surface of the butt joint housing (5-2) for one circle.
  4. 4. A sound-proof housing for an axial flow fan according to claim 3, wherein a baffle housing (5-4) is arranged in the air outlet housing (2), a convex layer (5-5) is arranged on the inner surface of the air outlet housing (2), and a reflecting groove (5-6) is formed on the surface of the convex layer (5-5).
  5. 5. A sound-proof housing for an axial flow fan according to claim 3, wherein the steering connection assembly (6) comprises a sliding rail (6-1), the sliding rail (6-1) is arranged on the periphery of the outer surface of the docking housing (5-2), a connecting sleeve (6-2) is arranged on the surface of the air-out housing (2), and the connecting sleeve (6-2) is connected to the outside of the sliding rail (6-1) in a sliding sleeved mode.
  6. 6. The sound-proof housing for the axial flow fan according to claim 5, wherein an annular layer (6-3) is arranged on the periphery of the outer surface of the butt joint housing (5-2), a plurality of clamping grooves (6-4) are formed in the surface of the annular layer (6-3), a plurality of limiting rods (6-5) are arranged on the surface of the air outlet housing (2), and the surfaces of the limiting rods (6-5) are outwards protruded and embedded in the clamping grooves (6-4).
  7. 7. The sound-proof housing for the axial flow fan according to claim 4, wherein the shielding housing (5-4) is of a bending transition structure, and the surface of the convex layer (5-5) is of an umbrella-shaped convex structural surface.
  8. 8. A sound-proof housing for an axial flow fan according to claim 3, characterized in that the spacing between the bracket (3) and the inner wall of the wrap casing (1) is greater than the thickness of the sound-absorbing cotton (5-1).
  9. 9. The sound-proof housing for an axial flow fan according to claim 1, wherein a plurality of grille rods (7) are provided in the air-out housing (2).

Description

Sound-proof housing for axial fan Technical Field The embodiment of the disclosure relates to the technical field related to noise treatment of axial flow fans, in particular to a sound-proof housing for an axial flow fan. Background The axial flow fan has the characteristics of simple structure and high ventilation efficiency, and is widely applied to the fields of industrial production, building ventilation, heat dissipation of various devices and the like. In the ventilation system of the high-rise building, the axial flow fans are responsible for maintaining the circulation of air and guaranteeing the comfort level of the indoor environment. However, the axial flow fan generates loud noise during the operation process, which brings a lot of trouble to the life and work of people. The noise is mainly caused by the high-speed rotation of the fan impeller, the operation of the motor and the friction between the airflow and the fan component. In industrial settings, the noise of an axial flow fan may be superimposed with other equipment noise, creating a high intensity noise environment. The long-term exposure to such environments may not only lead to hearing impairment of the staff, but also may cause problems such as fatigue, distraction, etc., thereby affecting the working efficiency and production safety. In some places with high requirements on noise control, such as hospitals, schools, nearby residential buildings and the like, the noise problem of the axial flow fan is more remarkable. The rest and rehabilitation of patients are guaranteed by the aid of a quiet environment in hospitals, a good teaching atmosphere is created for teachers and students in schools, and daily life quality of residents is related to residential areas. However, the existing axial flow fans generally lack effective sound insulation measures, and the simple housing cannot block noise transmission, which makes the axial flow fans limited in application in these places. Therefore, it is urgent to develop a soundproof cover for an axial flow fan, by which noise generated when the axial flow fan is operated is reduced to satisfy the use demands of different scenes. Disclosure of utility model In order to overcome the defects, the embodiment of the disclosure provides a sound-proof housing for an axial flow fan, which solves the technical problems of high-speed rotation of a fan impeller, motor operation and friction between air flow and fan components in the prior art, and noise of the axial flow fan can be overlapped with noise of other equipment to form a high-strength noise environment. According to one aspect, at least one embodiment of the present disclosure provides a soundproof cover for an axial flow fan, including: The device comprises a wrapping shell and an air outlet cover, wherein the air outlet cover is arranged at the outer end of the wrapping shell; The steering connection assembly is arranged between the wrapping shell and the air outlet cover; the bracket is fixed inside the package shell, and the fixed mounting assembly is arranged on the package shell; the noise reduction assembly is arranged inside the wrapping shell and the air outlet cover; The fixed mounting assembly comprises a pair of fixed blocks, the fixed blocks are respectively arranged at two opposite ends of the outer surface of the wrapping shell, the tensioning screw rod is connected with the fixed blocks in a rotating mode in a sleeved mode, and one end of the tensioning screw rod is connected with the pressing plate through threaded fit. As a further technical scheme, a pair of openings are formed in the outer end face of the wrapping shell, the pressing plate is located in the openings, a pair of guide rods are arranged on the surface of the fixing block, and one end of each guide rod is connected with the pressing plate in a sliding sleeved mode. As a further technical scheme, the noise reduction assembly comprises sound absorption cotton, the sound absorption cotton is attached to the inner surface of the wrapping shell for a circle, a butt joint cover is arranged on the outer surface of the wrapping shell, and an ejection layer is arranged on the inner surface of the butt joint cover for a circle. As a further technical scheme, the inside of the gas outlet cover is provided with a baffle cover, the inner surface of the gas outlet cover is provided with a convex layer, and the surface of the convex layer is provided with a reflecting groove. As a further technical scheme, the steering connection assembly comprises a sliding rail, the sliding rail is arranged on the periphery of the outer surface of the butt joint cover, a connecting sleeve is arranged on the surface of the air outlet cover, and the connecting sleeve is connected to the outer portion of the sliding rail in a sliding sleeve mode. As a further technical scheme, an annular layer is arranged on the periphery of the outer surface of the butt joint cover, a plurality of clamping gr