CN212407070U

CN212407070U - Roof ventilation fan

Info

Publication number: CN212407070U
Application number: CN201921817904.8U
Authority: CN
Inventors: 范绍富; 金银钢; 陆琪琳; 沈伟; 谭奇
Original assignee: Zhejiang Keli Fan Co ltd
Current assignee: Zhejiang Keli Fan Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2021-01-26
Anticipated expiration: 2029-10-25

Abstract

The utility model discloses a roof ventilation fan, including fan shell, fan guard, clean structure, flabellum, separate net, bullet piece, dustproof filter screen, rotating-structure, pivot, turn trough, thread bush, exhaust fan and motor. The utility model has the advantages that: the fan cover is provided with the fan blades and can rotate the rotating shaft, so that the fan cover arranged on the roof of a high-rise building can be driven by natural wind to rotate, on one hand, sundries attached to a separation net are shaken off by the elastic blocks connected by the first springs, the situation that the ventilation effect is influenced by the excessive sundries attached to the separation net is prevented, a certain cleaning effect is achieved on the fan, on the other hand, the fan cover is connected to the rotating shaft through thread sleeves and threads, so that the height of the fan cover can be adjusted, the ventilation effect of the ventilation fan can be adjusted under different use environment requirements, the ventilation quantity of the fan is changed, the fan cover is more flexible to use, and different use requirements can be met.

Description

Roof ventilation fan

Technical Field

The utility model relates to a ventilation fan specifically is a roof ventilation fan, belongs to ventilation fan technical field.

Background

The roof fan is installed on the roof for air exhaust and air exchange, has multiple specifications and forms and wide application range, can meet different requirements of use occasions and air quantity, pressure and noise, and determines the special use materials and structures of the fan due to the particularity of the installation and use environment. The roof fan should have reliable rain-proof, snow-flying-proof and sand-wind-proof performances when being designed, and the wind-snow and the wind-sand are not like rain water because the wind-snow and the wind-sand can not only enter the fan from the upper part, but also can enter the fan from the lower part when the outdoor wind speed reaches a certain intensity.

However, can install the shade that shelters from sleet on traditional roof ventilation fan usually, prevent that sleet from entering into the fan in, the shade sets up to fixed usually, and inconvenient regulation fan cover's position causes the sweeps easily to get into the fan among the wind blowing process, causes the fan jam.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a roof ventilation fan just in order to solve above-mentioned problem, ventilation effect is good, can prevent that the dust from getting into the fan cover in, the fan cover can height-adjusting simultaneously, changes ventilation effect.

The utility model realizes the above purpose by the following technical proposal, a roof ventilation fan comprises a fan shell, a motor is fixed in the fan shell, one end of the motor is rotationally connected with an exhaust fan, one side of the fan shell is provided with a fan cover, the fan cover is connected with a cleaning structure, the cleaning structure comprises a plurality of fan blades, a separation net, an elastic block and a dustproof filter screen, the fan blades are sequentially and equidistantly fixed on the fan cover, the fan blades are perpendicular to the fan cover, the inner side of the fan cover is fixedly connected with a circle of the separation net, the fan shell is also provided with a plurality of the elastic blocks, the other end of the elastic block is in contact with the separation net, the edge of the dustproof filter screen is fixed with the fan shell by a bolt, the middle part of the dustproof filter screen is connected with a rotating structure, the rotating structure comprises a rotating shaft, a rotating groove and a threaded sleeve, the threaded sleeve is fixedly connected to the middle of the fan cover, the threaded sleeve is rotatably connected with the rotating shaft, the rotating groove is formed in the middle of the dustproof filter screen, and the rotating shaft is rotatably connected with the dustproof filter screen through the rotating groove.

Preferably, in order to clean dust on the dustproof filter screen through the brush barrel under the rotating action of the fan cover, the cleaning structure further comprises a plurality of brush barrels and a plurality of supports, one end of each support is fixedly connected to one side of the fan cover, the other end of each support is rotatably connected with the brush barrel, and the side face of each brush barrel is abutted to the dustproof filter screen.

Preferably, in order to enable the fan guard to shake after the height is adjusted and to enable the brush barrel to be cleaned, the cleaning structure further comprises a first spring and a second spring, one end of the first spring is fixedly connected to one side of the elastic block, the other end of the first spring is fixedly connected to the fan housing, one end of the second spring is fixedly connected to the fan guard, and the other end of the second spring is fixedly connected to the bracket.

Preferably, in order to further improve the effect that the brush barrel cleans dust accumulated in the meshes of the dustproof filter screen, the cleaning structure further comprises bristles, the bristles are needle-shaped, the bristles are arranged on the brush barrel, and the bristles penetrate through the dustproof filter screen.

Preferably, in order to adjust the height of the fan guard conveniently, the rotating structure further comprises a carrying handle, and two ends of the carrying handle are rotatably connected to one end of the rotating shaft.

Preferably, in order to reduce the frictional resistance when the rotating shaft rotates and enable the fan cover to rotate more smoothly when the fan cover is driven by wind power, the rotating structure further comprises a plurality of rollers, the rollers are connected in the rotating groove in a rolling mode, and the rollers are abutted to one end of the rotating shaft.

Compared with the prior art, the beneficial effects of the utility model are that: the fan cover is provided with the fan blades and can rotate the rotating shaft, so that the fan cover arranged on the roof of a high-rise building can be driven by natural wind to rotate, on one hand, sundries attached to a separation net are shaken off by the elastic blocks connected through the first springs, the situation that the ventilation effect is influenced by the excessive sundries attached to the separation net is prevented, a certain cleaning effect is achieved on the fan, meanwhile, a dustproof filter screen inside the fan cover can be further cleaned under the driving of wind power, on the other hand, the fan cover is connected to the rotating shaft through the thread sleeves in a threaded manner, the height of the fan cover can be adjusted, the ventilation effect of the ventilation fan can be adjusted under different use environment requirements, the ventilation quantity of the fan is changed, the fan cover is more flexible to use, and different use requirements can be met.

Drawings

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

FIG. 2 is a schematic view of a connection structure of the cleaning structure and the rotating structure shown in FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural view of the cleaning structure shown in fig. 1.

In the figure: 1. the fan comprises a fan shell, 2, a fan cover, 3, a cleaning structure, 31, fan blades, 32, a separation net, 33, an elastic block, 34, a first spring, 35, a brush barrel, 36, a support, 37, a dustproof filter screen, 38, a second spring, brush hair, 4, a rotating structure, 41, a carrying handle, 42, a rotating shaft, 43, a rotating groove, 44, a roller, 45, a threaded sleeve, 5, an exhaust fan, 6 and a motor.

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.

Referring to fig. 1-4, a roof ventilation fan comprises a fan housing 1, a motor 6 is fixed inside the fan housing 1, an exhaust fan 5 is rotatably connected to one end of the motor 6, a fan cover 2 is arranged on one side of the fan housing 1, a cleaning structure 3 is connected to the fan cover 2, the cleaning structure 3 comprises a plurality of fan blades 31, a spacer screen 32, an elastic block 33 and a dustproof filter screen 37, the plurality of fan blades 31 are sequentially and equidistantly fixed on the fan cover 2, the fan blades 31 are arranged perpendicular to the fan cover 2, a circle of the spacer screen 32 is fixedly connected to the inner side of the fan cover 2, the fan housing 1 is further provided with a plurality of elastic blocks 33, the other ends of the elastic blocks 33 are abutted against the spacer screen 32, and the edge of the dustproof filter screen 37 is fixed to the fan housing 1 through bolts, the middle part of dustproof filter screen 37 is connected with revolution mechanic 4, revolution mechanic 4 includes pivot 42, rotary groove 43 and thread bush 45, the middle part fixedly connected with of fan guard 2 thread bush 45, thread bush 45 with rotate between the pivot 42 and be connected, rotary groove 43 sets up in dustproof filter screen 37's middle part, pivot 42 passes through rotary groove 43 with rotate between the dustproof filter screen 37 and be connected.

As a technical optimization scheme of the utility model, clean structure 3 still includes brush section of thick bamboo 35 and support 36, support 36 is equipped with a plurality ofly, the one end fixed connection of support 36 in one side of fan guard 2, the other end of support 36 rotates and is connected with brush section of thick bamboo 35, the side of brush section of thick bamboo 35 with dustproof filter screen 37 is inconsistent.

As a technical optimization scheme of the utility model, clean structure 3 still includes first spring 34 and second spring 38, the one end fixed connection of first spring 34 in one side of bullet piece 33, the other end fixed connection of first spring 34 in fan housing 1.

As a technical optimization scheme of the utility model, clean structure 3 still includes the brush hair is acicular, the brush hair is located on the brush section of thick bamboo 35, just the brush hair runs through dustproof filter screen 37.

As a technical optimization scheme of the utility model, revolution mechanic 4 still includes carrying handle 41, the both ends of carrying handle 41 all rotate connect in the one end of pivot 42.

As a technical optimization scheme of the utility model, revolution mechanic 4 still includes gyro wheel 44, gyro wheel 44 is equipped with a plurality ofly, and is a plurality of the equal roll connection of gyro wheel 44 in the rotating groove 43, gyro wheel 44 with the one end of pivot 42 is inconsistent.

When the utility model is used, firstly, the fan shell 1 is kept horizontally and fixedly arranged on the roof to prevent the internal devices from being damaged, when in actual use, the motor 6 is connected with the power supply, the exhaust fan 5 can play the ventilation function under the drive of the motor 6, because the ventilation fan is arranged on the roof, the roof is often in a windy environment, when the fan cover 2 is blown by strong wind, because the fan cover 2 is provided with the fan blades 31, and simultaneously, the fan cover 2 can rotate around the rotating shaft 42, the fan cover 2 can rotate under the drive of natural wind, the separation net 32 is arranged between the fan cover 2 and the fan shell 1, the separation net 32 is used for preventing foreign matters such as fallen leaves from entering the fan cover 2 to influence the ventilation effect, when the fan cover 2 rotates, the elastic blocks 33 are abutted against the separation net 32 by the first springs 34, when the separation net 32 rotates along with the fan cover 2, the elastic blocks 33 can continuously shake among meshes of the separation net 32, and then make the debris that adhere to on separating the net 32 shake off, the inside support 36 and brush drum 35 of fan cover 2 can also rotate on dustproof filter screen 37 at the same time, through the brush hair 39 set up on the brush drum 35, can prevent the dust that gathers on the dustproof filter screen 37, in order to guarantee the holistic cleanness of fan, when needing to adjust the height of fan cover 2, at first the user holds the fan cover 2 fixedly, rotate the handle 41 and can change the height of fan cover 2 at the same time, because the pivot 42 below is equipped with the gyro wheel 44, make the rotation of fan cover 2 save effort more, convenient 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a roof ventilation fan, includes fan shell (1), its characterized in that: the fan is characterized in that a motor (6) is fixed inside the fan shell (1), one end of the motor (6) is rotatably connected with an exhaust fan (5), a fan cover (2) is arranged on one side of the fan shell (1), a cleaning structure (3) is connected onto the fan cover (2), the cleaning structure (3) comprises fan blades (31), a plurality of separation nets (32), elastic blocks (33) and a dustproof filter screen (37), the fan blades (31) are sequentially and equidistantly fixed onto the fan cover (2), the fan blades (31) are perpendicular to the fan cover (2), a circle of the separation net (32) is fixedly connected onto the inner side of the fan cover (2), the fan shell (1) is further provided with the elastic blocks (33), the other ends of the elastic blocks (33) are abutted against the net (32), and the edge of the dustproof filter screen (37) is fixed with the fan shell (1) through bolts, the middle part of dustproof filter screen (37) is connected with revolution mechanic (4), revolution mechanic (4) are including pivot (42), turn trough (43) and thread bush (45), the middle part fixedly connected with of fan guard (2) thread bush (45), thread bush (45) with rotate between pivot (42) and be connected, turn trough (43) are seted up in the middle part of dustproof filter screen (37), pivot (42) are passed through turn trough (43) with rotate between the dustproof filter screen (37) and be connected.

2. A roof ventilation fan as claimed in claim 1, wherein: clean structure (3) still include brush section of thick bamboo (35) and support (36), support (36) are equipped with a plurality ofly, the one end fixed connection of support (36) in one side of fan cover (2), the other end of support (36) rotates and is connected with brush section of thick bamboo (35), the side of brush section of thick bamboo (35) with dustproof filter screen (37) are inconsistent.

3. A roof ventilation fan as claimed in claim 2, wherein: the cleaning structure (3) further comprises a first spring (34) and a second spring (38), one end of the first spring (34) is fixedly connected to one side of the elastic block (33), the other end of the first spring (34) is fixedly connected to the fan shell (1), one end of the second spring (38) is fixedly connected to the fan cover, and the other end of the second spring (38) is fixedly connected to the support (36).

4. A roof ventilation fan as claimed in claim 3, wherein: clean structure (3) still include brush hair (39), brush hair (39) are acicular, brush hair (39) are located brush section of thick bamboo (35) are last, just brush hair (39) run through dust screen (37).

5. A roof ventilation fan as claimed in claim 1, wherein: the rotating structure (4) further comprises a lifting handle (41), and two ends of the lifting handle (41) are rotatably connected to one end of the rotating shaft (42).

6. A roof ventilation fan as claimed in claim 1, wherein: the rotating structure (4) further comprises a plurality of rollers (44), the rollers (44) are connected into the rotating groove (43) in a rolling mode, and the rollers (44) are abutted to one end of the rotating shaft (42).