CN212055298U

CN212055298U - Combined type noise reduction cover for roof fan

Info

Publication number: CN212055298U
Application number: CN202020491598.XU
Authority: CN
Inventors: 杨伟俊
Original assignee: Jiangxi Lifeng Ventilation Equipment Co ltd
Current assignee: Jiangxi Lifeng Ventilation Equipment Co ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-12-01
Anticipated expiration: 2030-04-07

Abstract

The utility model discloses a roof fan is with combination formula noise elimination cover, including top cap, outer container, amortization ring sum amortization piece, the fan outside on the roof is installed to the outer container, the outer container passes the bottom ring that is annular platelike structure of bottom through the screw and fixes on the roof, outer container and bottom ring formula structure as an organic whole, the outer container is circular tubular structure, outer container top edge welding has the bracing piece that a plurality of groups billet was made, a plurality of groups bracing piece upper end welded fastening has the profile to be conical top cap, it has a plurality of groups wall opening, a plurality of groups to open on the lateral wall of outer container all be equipped with on the edge of wall opening inboard and be the notch board of integral type structure with the outer container, the laminating is fixed with profile and outer container inner space complex cotton on the lateral wall of outer container and inhales the sound, and the fan is located inside the cotton of tubular structure's sound absorption. This combination formula noise cover for roof fan can avoid the fan to drench with rain, and air permeability is good, has higher amortization rate and is fit for generally using widely.

Description

Combined type noise reduction cover for roof fan

Technical Field

The utility model belongs to the technical field of the fan noise reduction cover, concretely relates to roof is combination formula noise reduction cover for fan.

Background

The fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. The fan is a Chinese habit short for gas compression and gas conveying machinery, and generally comprises a ventilator, a blower and a wind driven generator, and is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, and ventilation and induced air of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grain, wind tunnel wind source and air cushion boat inflating and propelling.

The existing roof fan can generate large noise when in use, influences the work and life of surrounding people are caused, the existing fan noise elimination cover generally adopts a mode of covering the fan to eliminate noise, and the noise elimination effect is general.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a roof is combination formula noise elimination cover for fan to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a roof is combination formula noise elimination cover for fan, includes top cap, outer container, amortization ring sum amortization piece, the fan outside on the roof is installed to the outer container, the outer container passes the end ring that is annular platelike structure of bottom through the screw and fixes on the roof, outer container and end ring formula structure as an organic whole, the outer container is circular tubular structure, outer container top edge welding has the bracing piece that a plurality of groups billet were made, a plurality of groups bracing piece upper end welded fastening has the profile to be conical top cap, it has a plurality of groups wall opening, a plurality of groups to open on the lateral wall of outer container all be equipped with the notch board that is the integral type structure with the outer container on the edge of wall opening inboard, the laminating is fixed with profile and outer container inner space complex on the lateral wall of outer container inhales the sound cotton, and the fan is located tubular structure inhales inside the sound cotton, the cover is equipped with a plurality of.

Preferably, the amortization ring is cyclic annular structure, amortization ring is inside to be honeycomb, amortization ring is inside to be equipped with a plurality of internal spaces of group and is regular hexagonal prism shaped's hexagonal groove, hexagonal groove bottom all is provided with the installation axle, install the epaxial end and all open threaded hole.

Preferably, the amortization piece sets up inside the hexagonal groove of amortization ring, the amortization piece includes rubber backing ring, steel ring, well section of thick bamboo and yielding rubber, well section of thick bamboo is cylindric structure, it has yielding rubber to open on the groove of well section of thick bamboo excircle part, the last cover of yielding rubber is equipped with two sets of steel rings.

Preferably, the damping rubber sleeve of the silencing block is arranged on a steel ring in the hexagonal groove, two groups of steel rings of the silencing block are respectively sleeved on the mounting shaft above and below the middle cylinder, and a screw for preventing the middle cylinder from being separated from the mounting shaft is arranged in a threaded hole above the mounting shaft.

Preferably, the diameters of the outer circle and the inner circle of the silencing ring are customized according to the diameter of a fan arranged in the silencing ring.

The utility model discloses a technological effect and advantage: the combined type noise reduction cover for the roof fan is sleeved outside the fan through the noise reduction ring, the fan can generate vibration when working to generate sound, and the vibration of the fan is suppressed in a vibration mode of the steel ring and the damping rubber, so that the working noise of the fan is reduced, and the noise problem is fundamentally solved in a vibration suppression mode; the outer box and the sound-absorbing cotton also play a role in absorbing and reflecting sound, so that the sound emitted by the fan after being suppressed by the silencing ring and the silencing block is consumed; the top cap has played the effect that reflection sound rebounded the sound wave to the inside of outer container, has still played the effect of avoiding the fan to drench with rain.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the combined state of the silencing ring and the silencing block of the present invention;

FIG. 3 is an exploded view of the silencing block of the present invention;

fig. 4 is a schematic view of the sectional structure of the joint of the silencing ring and the silencing block of the present invention.

In the figure: 1 top cover, 2 support rods, 3 outer boxes, 4 sound-absorbing cotton, 5 wall openings, 6 concave plates, 7 bottom rings, 8 sound-absorbing rings, 801 hexagonal grooves, 802 mounting shafts, 9 sound-absorbing blocks, 901 rubber backing rings, 902 steel rings, 903 middle cylinders and 904 shock-absorbing rubber.

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.

The utility model provides a roof fan is with combination formula noise elimination cover as shown in fig. 1-4, including top cap 1, outer container 3, amortization ring 8 and amortization piece 9, its characterized in that: the fan outside on the roof is installed to outer container 3, outer container 3 passes the end ring 7 that is annular platelike structure of bottom through the screw and fixes on the roof, outer container 3 and end ring 7 formula structure as an organic whole, outer container 3 is circular tubular structure, the edge welding has bracing piece 2 that a plurality of groups billet was made in 3 top of outer container, a plurality of groups 2 upper end welded fastening of bracing piece has the profile to be conical top cap 1, it has a plurality of groups wall opening 5, a plurality of groups to open on the lateral wall of outer container 3 all be equipped with on the edge of wall opening 5 inboard and inhale the notch board 6 that is integral type structure with outer container 3, the laminating is fixed with profile and 3 inner space cooperations of outer container inhale the sound cotton 4 on the lateral wall of outer container 3, and the fan is located tubular structure's sound cotton 4 inside, the cover is equipped with a plurality of groups amortization ring 8 on the fan.

Specifically, amortization ring 8 is the loop configuration, amortization ring 8 is inside to be the honeycomb, and the amortization ring 8 of honeycomb has stronger anti deformability, and weight is lighter, can be with the effective transmission of the vibration of fan to amortization piece, amortization ring 8 is inside to be equipped with a plurality of internal spaces of group and is regular hexagonal prism shape's hexagonal groove 801, hexagonal groove 801 bottom all is provided with installation axle 802, install the axle 802 upper end and all open threaded hole.

Specifically, the silencing block 9 is arranged inside a hexagonal groove 801 of the silencing ring 8, the silencing block 9 comprises a rubber backing ring 901, a steel ring 902, a middle cylinder 903 and damping rubber 904, the middle cylinder 903 is of a cylindrical structure, the damping rubber 904 is arranged on the groove of the outer circle part of the middle cylinder 903, the damping rubber 904 is sleeved with two groups of steel rings 902, and the silencing block 9 eliminates vibration generated by the fan through the vibration of the steel rings 902 on the rubber backing ring 901, so that noise of the fan is reduced.

Specifically, the damping rubber 904 of the silencing block 9 is sleeved on the steel rings 902 in the hexagonal groove 801, the two groups of steel rings 902 of the silencing block 9 are respectively sleeved on the mounting shaft 802 above and below the middle cylinder 903, the threaded hole above the mounting shaft 802 is provided with a screw for preventing the middle cylinder 903 from being separated from the upper side of the mounting shaft 802, and the silencing block 9 and the silencing ring 8 are connected through only one screw, so that the assembly and disassembly are convenient.

Specifically, the diameter of the outer circle and the inner circle of the silencing ring 8 is customized according to the diameter of a fan arranged in the silencing ring, and the outline size of the silencing ring 8 is matched with the size of the fan and is not changed.

Specifically, this combination formula noise reduction cover for roof fan, the fan during operation produces the shake, the essence of noise derives from vibrations, the vibration conduction of fan is to amortization ring 8, amortization ring 8 will shake the conduction to amortization piece 9, well section of thick bamboo 903 and steel ring 902 in the amortization piece 9 pass through the indirect contact of yielding rubber 904, yielding rubber 904 has played the effect of absorbing vibrations, from reaching the effect of absorbing fan job shock, the vibrations of fan have reduced the noise and have just been suppressed naturally, remaining noise gets into outer container 3 inside and is weakened by constantly reflecting, it has played the effect of noise absorption to inhale sound cotton 4, it has still played the effect of absorbing the rainwater that gets into outer container 3 inside through wall opening 5 to inhale sound cotton 4, avoid the rainwater to be infected with the fan, wall opening 5 has increased 3 inner space's gas permeability.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a roof is combination formula noise elimination cover for fan, includes top cap (1), outer container (3), amortization ring (8) and amortization piece (9), its characterized in that: the outer box (3) is arranged on the outer side of a fan on a roof, the outer box (3) penetrates through a bottom ring (7) which is of an annular plate-shaped structure and is arranged at the bottom through screws to be fixed on the roof, the outer box (3) and the bottom ring (7) are of an integral structure, the outer box (3) is of a circular cylindrical structure, a plurality of groups of supporting rods (2) made of steel bars are welded at the edge above the outer box (3), a plurality of groups of top covers (1) with conical outlines are welded and fixed at the upper ends of the supporting rods (2), a plurality of groups of wall openings (5) are formed in the side wall of the outer box (3), concave plates (6) which are of an integral structure with the outer box (3) are arranged on the edges of the inner side of the wall openings (5), sound absorbing cotton (4) with outlines matched with the inner space of the outer box (3) are attached and fixed on the side wall of the outer box (3), and the fan is positioned inside, the fan is sleeved with a plurality of groups of silencing rings (8).

2. The combined muffling enclosure of claim 1, wherein: the utility model discloses a silencer, including silencing ring (8), silencing ring (8) are annular structure, silencing ring (8) inside is honeycomb, silencing ring (8) inside is equipped with a plurality of internal spaces and is hexagonal groove (801) of regular hexagonal prism shape, hexagonal groove (801) bottom all is provided with installation axle (802), threaded hole all opens in installation axle (802) upper end.

3. The combined muffling enclosure of claim 1, wherein: the silencing device is characterized in that the silencing block (9) is arranged inside a hexagonal groove (801) of the silencing ring (8), the silencing block (9) comprises a rubber backing ring (901), a steel ring (902), a middle cylinder (903) and damping rubber (904), the middle cylinder (903) is of a cylindrical structure, the damping rubber (904) is arranged on the groove of the outer circle part of the middle cylinder (903), and two groups of steel rings (902) are sleeved on the damping rubber (904).

4. The combined muffling enclosure of claim 1, wherein: the damping rubber (904) of the silencing block (9) is sleeved on a steel ring (902) in a hexagonal groove (801), two groups of steel rings (902) of the silencing block (9) are respectively sleeved on an installation shaft (802) above and below the middle cylinder (903), and a screw for preventing the middle cylinder (903) from being separated from the upper part of the installation shaft (802) is installed in a threaded hole above the installation shaft (802).

5. The combined muffling enclosure of claim 1, wherein: the diameters of the outer circle and the inner circle of the silencing ring (8) are customized according to the diameter of a fan arranged in the silencing ring.