CN213419407U

CN213419407U - Axial-flow type low-noise roof fan

Info

Publication number: CN213419407U
Application number: CN202021250238.7U
Authority: CN
Inventors: 沈飞; 朱武
Original assignee: Wuxi Linnuo Electric Power Technology Co ltd
Current assignee: Wuxi Linnuo Electric Power Technology Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-06-11
Anticipated expiration: 2030-07-01

Abstract

The utility model discloses an axial-flow type low noise roof fan relates to fan technical field, which comprises a mounting bas, the mount pad top is provided with the dryer, and the inside check valve that is provided with of mount pad, the dryer inner wall is provided with four groups of JG type butyl fine synthetic rubber shearing shock absorbers. The utility model is composed of three large external structural components, namely the mounting seat, the air duct and the air cap, the external components are small in quantity, small parts are integrated, and the modular installation is carried out by combining base parts of JG type nitrile synthetic rubber shearing shock absorber, connecting ribs, a motor, a rectifying cone and fan blades, so that the installation is simple and convenient and the construction is rapid; and the JG type nitrile rubber shear vibration absorber eliminates vibration noise generated when the motor shakes, the rotating speed is greatly reduced under the condition of meeting the wind flux through the large-air-volume fan blade group consisting of seven groups of fan blades, the running noise of the motor is reduced, and the wind noise is reduced by combining the rectifying cone and the silencing interlayer, so that the whole equipment is muted, and the noise pollution is avoided.

Description

Axial-flow type low-noise roof fan

Technical Field

The utility model relates to a fan technical field specifically is an axial-flow type low noise roof fan.

Background

The roof fan is installed on the roof for air exhaust and air change, and is mainly used for ventilation and air exhaust of buildings such as factory buildings, office buildings, hotels, auditoriums, movie theaters and the like.

Roof fan among the prior art structure is comparatively complicated, and the installation is comparatively complicated, and the during operation noise is also great.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that the existing roof fan is complex to install and high in noise during working, the axial-flow type low-noise roof fan is provided.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an axial-flow type low noise roof fan, includes the mount pad, the mount pad top is provided with the dryer, and is provided with the amortization intermediate layer in the dryer intermediate layer, the inside check valve that is provided with of mount pad, the dryer inner wall is provided with four group's JG type nitrile synthetic rubber shearing shock absorbers, and four group's JG type nitrile synthetic rubber shearing shock absorbers keep away from dryer one end and all be connected with the connection rib, the motor is installed through four group's connection ribs to the inside of dryer, and motor top output is provided with the fairing cone, the fairing cone outside is provided with seven groups of flabellums, the dryer top is provided with the hood, and the hood inboard is provided with the amortization.

Preferably, the mounting seat is of a cylindrical hollow structure, and a plurality of groups of reinforcing ribs are connected between the mounting seat and the air duct.

Preferably, the bottom of the check valve is provided with a safety net connected with the mounting seat.

Preferably, the upper part of the outer side of the air duct is provided with a plurality of groups of fixing sleeves, and a fixing bolt is in threaded connection between the fixing sleeves and the air cap.

Preferably, a rubber pad is connected between the hood and the air duct, the silencing interlayer is of a honeycomb-shaped net structure and is made of a polyester fiber material.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model is composed of three large external structural components, namely the mounting seat, the air duct and the air cap, the external components are small in quantity, small parts are integrated, and the modular installation is carried out by combining base parts of JG type nitrile synthetic rubber shearing shock absorber, connecting ribs, a motor, a rectifying cone and fan blades, so that the installation is simple and convenient and the construction is rapid; and the JG type nitrile rubber shear vibration absorber eliminates the vibration noise generated when the motor shakes, the rotating speed is greatly reduced under the condition of meeting the wind flux through the large-air-volume fan blade group consisting of seven groups of fan blades, the running noise of the motor is reduced, and the wind noise is reduced by combining the rectifying cone, the silencing interlayer and the silencing interlayer, so that the whole equipment is muted, and the noise pollution is avoided.

Drawings

FIG. 1 is a side sectional view of the present invention;

FIG. 2 is a top sectional view of the present invention;

fig. 3 is a side view of the present invention.

In the figure: 1. a mounting seat; 2. an air duct; 3. a JG type nitrile synthetic rubber shear shock absorber; 4. a connecting rib; 5. a motor; 6. a rectifying cone; 7. a fan blade; 8. reinforcing ribs; 9. a hood; 10. a sound-deadening interlayer; 11. a check valve; 12. a safety net; 13. a fixing bolt; 14. fixing the sleeve; 15. and a silencing interlayer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

Referring to fig. 1-3, an axial-flow type low-noise roof fan includes a mounting base 1, an air duct 2 is disposed on the top of the mounting base 1, a silencing interlayer 15 is disposed in the interlayer of the air duct 2, a check valve 11 is disposed inside the mounting base 1, four groups of JG-type nitrile synthetic rubber shear dampers 3 are disposed on the inner wall of the air duct 2, connecting ribs 4 are connected to ends of the four groups of JG-type nitrile synthetic rubber shear dampers 3 away from the air duct 2, a motor 5 is mounted inside the air duct 2 through the four groups of connecting ribs 4, a rectifying cone 6 is disposed at an output end of the top of the motor 5, seven groups of fan blades 7 are disposed outside the rectifying cone 6, an air cap 9 is disposed on the top of the air duct 2, and a silencing interlayer 10 is disposed.

The utility model is composed of three external structural components, namely a mounting seat 1, an air duct 2 and an air cap 9, the external components are small in quantity, small parts are integrated, and the basic components of the JG type nitrile synthetic rubber shearing shock absorber 3, the connecting ribs 4, the motor 5, the rectifying cone 6 and the fan blades 7 are combined to perform modular installation, so that the installation is simple and convenient, and the construction is rapid; and the JG type nitrile synthetic rubber shear damper 3 eliminates the vibration noise generated when the motor 5 shakes, the large-air-volume fan blade group consisting of seven groups of fan blades 7 greatly reduces the rotating speed and the running noise of the motor 5 under the condition of meeting the air flux, and the rectification cone 6 and the silencing interlayer 10 are combined to reduce the wind noise, so that the whole equipment is muted, and the noise pollution is avoided.

Please refer to fig. 1 and fig. 2, the mounting base 1 is a cylindrical hollow structure, and a plurality of sets of reinforcing ribs 8 are connected between the mounting base 1 and the air duct 2, the present invention reinforces the connection between the air duct 2 and the mounting base 1 through the reinforcing ribs 8.

Please refer to fig. 1, the top of the check valve 11 is provided with a safety net 12 connected to the mounting seat 1, the safety net 12 of the present invention prevents foreign matters from falling into the ventilation pipe.

Please refer to fig. 1, a plurality of fixing sleeves 14 are disposed on the upper portion of the outer side of the wind barrel 2, and a fixing bolt 13 is connected between the fixing sleeves 14 and the wind cap 9 by a screw thread, so that the fixing bolt 13 reinforces the wind cap 9.

Please refer to fig. 1, a rubber pad is connected between the wind cap 9 and the wind barrel 2, the noise reduction interlayer 10 is a honeycomb type mesh structure, and the noise reduction interlayer 10 is made of polyester fiber material, the utility model discloses utilize the honeycomb type structure can reflect the sound wave many times, and every reflection can reduce the volume, reduce the characteristics of the sound volume that finally reflects and spread to and gather the porous material sound absorption that fibre itself possessed and fall the characteristics of making an uproar and reduce the wind noise when the fan operates.

The working principle is as follows: during installation, the installation base 1 is fixed to the top of the ventilation pipe, the air duct 2 is installed to the top of the installation base 1 through bolts, the JG type nitrile synthetic rubber shear damper 3 is fixed to the inner wall of the air duct 2 through bolts, the rectifying cone 6 and the fan blades can be installed after the motor 5 is fixed through the connecting ribs 4, and finally the air cap 9 is installed to the top of the air duct 2 through the fixing bolts 13, so that installation can be completed, installation steps are few, and bolt connection and disassembly are convenient; when the wind-driven generator is used, an external power supply is firstly switched on, the motor 5 drives the rectifying cone 6 and the fan blades 7 to rotate, the seven groups of fan blades 7 drive air to flow, the motor 5 runs at a lower speed under the condition of meeting the air flow flux due to more fan blades 7, so that the noise of the motor 5 is reduced, the JG type nitrile synthetic rubber shearing vibration absorber 3 utilizes the characteristics that the impact rigidity of rubber is greater than the dynamic rigidity, and the dynamic rigidity is greater than the static rigidity, so that the impact deformation and the dynamic deformation are favorably reduced, the vibration of the device during running is reduced, so that the noise generated by the vibration is reduced, when the wind flows through the wind tube 2 and the wind cap 9, the sound waves can be reflected for multiple times by utilizing the silencing interlayer 15 on the inner wall of the wind tube 2 and the honeycomb structure of the silencing interlayer 10 arranged at the bottom of the wind cap 9, the volume can be reduced by each reflection, the characteristics of reducing the sound volume of the final reflected sound transmitted by utilizing the porous material owned by the, thereby causing the device to be muted while in operation.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an axial-flow type low noise roof fan, includes mount pad (1), its characterized in that: the utility model discloses a wind-powered generator, including mount pad (1), installation seat (2), air duct (2), damping interlayer (15), inside check valve (11) that is provided with of mount pad (1), air duct (2) inner wall is provided with four groups of JG type nitrile synthetic rubber shearing shock absorbers (3), and four groups of JG type nitrile synthetic rubber shearing shock absorbers (3) keep away from air duct (2) one end and all are connected with connection rib (4), motor (5) are installed through four groups of connection rib (4) in the inside of air duct (2), and motor (5) top output is provided with fairing cone (6), fairing cone (6) outside is provided with seven sets of flabellums (7), air duct (2) top is provided with hood (9), and hood (9) inboard is provided with damping interlayer (10).

2. The axial-flow, low-noise roof fan of claim 1, wherein: the mounting seat (1) is of a cylindrical hollow structure, and a plurality of groups of reinforcing ribs (8) are connected between the mounting seat (1) and the air duct (2).

3. The axial-flow, low-noise roof fan of claim 1, wherein: and a safety net (12) connected with the mounting seat (1) is arranged at the bottom of the check valve (11).

4. The axial-flow, low-noise roof fan of claim 1, wherein: a plurality of groups of fixing sleeves (14) are arranged on the upper part of the outer side of the air duct (2), and fixing bolts (13) are connected between the fixing sleeves (14) and the air cap (9) in a threaded manner.

5. The axial-flow, low-noise roof fan of claim 1, wherein: a rubber pad is connected between the blast cap (9) and the wind barrel (2), the noise reduction interlayer (10) adopts a honeycomb type net structure, and the noise reduction interlayer (10) is made of polyester fiber materials.