CN213574755U

CN213574755U - Roof fan

Info

Publication number: CN213574755U
Application number: CN202020762147.5U
Authority: CN
Inventors: 金银钢; 谭奇; 沈伟; 范绍富; 陆琪琳
Original assignee: Zhejiang Keli Fan Co ltd
Current assignee: Zhejiang Keli Fan Co ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2021-06-29
Anticipated expiration: 2030-05-09

Abstract

The utility model discloses a roof fan, include the base, locate dryer on the base, with dryer complex hood, locating flabellum, drive in the dryer the flabellum pivoted driving piece, connect the first coupling mechanism, the connection of dryer and hood the second coupling mechanism of base and dryer and be used for controlling the wind direction adjustment mechanism of wind direction, the hood is including the hood main part that is equipped with the through-hole, locate drive shaft in the through-hole, locate drive epaxial apron, locate drive epaxial first drive wheel, connection first drive wheel and the first connecting band, the drive of first drive wheel first drive piece and seal assembly.

Description

Roof fan

Technical Field

The utility model belongs to the technical field of the fan, especially, relate to a roof fan.

Background

The roof fan is used for ventilating and exhausting equipment of buildings such as factory buildings, office buildings, hotels, auditoriums, movie theaters and the like, and is used for guiding outside air into a room.

Most of existing roof fans cannot change the size of an air inlet, and are inconvenient to clean inside.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide a can change the air intake size, be convenient for the roof fan of clearance.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a roof fan comprises a base, an air duct arranged on the base, an air cap matched with the air duct, fan blades arranged in the air duct, a driving piece for driving the fan blades to rotate, a first connecting mechanism for connecting the air duct and the air cap, a second connecting mechanism for connecting the base and the air duct and an air direction adjusting mechanism for controlling the air direction, wherein the air cap comprises an air cap main body provided with a through hole, a driving shaft arranged in the through hole, a cover plate arranged on the driving shaft, a first driving wheel, a first connecting belt for connecting the first driving wheel and the first driving wheel, a first driving piece for driving the first driving wheel to rotate and a sealing assembly; when needs increase air intake, can start first driving piece and drive the drive shaft and rotate for the apron rotates vertical state by the horizontality, then wind can pass through from the through-hole, and when clearing up the dryer inner wall, can clear up the burnisher from the through-hole through clearing up the dryer inner wall, and the clearance is convenient.

Preferably, the sealing assembly comprises a first sealing groove arranged on the inner wall of the through hole and a first sealing strip arranged on the side wall of the cover plate; when the cover plate rotates to the horizontal state, the first sealing strip is inserted into the first sealing groove, and then the gap between the cover plate and the inner wall of the through hole is sealed, so that rainwater is prevented from passing through.

Preferably, the seal assembly further comprises a first seal plate rotatably disposed on the hood main body, a second seal plate matched with the first seal plate, a control component for controlling the first seal plate to rotate, a second seal strip and a second seal groove disposed on the cover plate.

Preferably, the control part comprises a mounting plate arranged on the hood main body, a rotating shaft arranged on the mounting plate, a connecting plate connecting the rotating shaft and the mounting plate, a reset piece sleeved on the rotating shaft and a push plate arranged on the first sealing plate; when needs increase air intake, can start first driving piece and drive the drive shaft and rotate, make the apron rotate vertical state by the horizontality, first closing plate will keep vertical state under the effect of piece that resets, when needs closed through-hole, the counter rotation apron, the apron is rotating the in-process that changes the state to the level, will push down the push pedal, and then drive first closing plate and rotate, when the apron rotates the horizontality, first closing plate also rotates horizontal state, make the second sealing strip insert in the second seal groove.

Preferably, the first sealing plate and the second sealing plate are both provided with a flow guide groove and a flow guide surface; preventing rainwater from accumulating on the cover plate.

Preferably, the second connecting mechanism comprises a mounting groove arranged on the base, a mounting hole arranged in the base, an elastic piece arranged in the mounting hole, an ejector rod arranged in the mounting hole, a ball arranged on the end part of the ejector rod and a clamping groove arranged on the air duct.

Preferably, the first connecting mechanism comprises a fixing plate arranged at the upper end of the air duct, a screw rod arranged on the fixing plate and a screw cap arranged on the screw rod.

Preferably, the wind direction adjusting mechanism comprises a plurality of rotating shafts uniformly arranged in the wind barrel, wind deflectors respectively arranged on the rotating shafts, a second driving wheel, an adjusting driving piece driving the driving wheel to rotate, and a second connecting belt sleeved on the second driving wheel and the second driving wheel.

To sum up, when needs increase the air intake, can start first driving piece and drive the drive shaft and rotate for the apron rotates vertical state by the horizontality, then wind can pass through from the through-hole, and when clearing up the dryer inner wall, can clear up the burnisher from the through-hole through clearing up the dryer inner wall, and the clearance is convenient.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is an enlarged view of fig. 2 at a.

Fig. 4 is a schematic diagram of the internal structure of the present invention.

Fig. 5 is an enlarged view of fig. 4 at a.

Fig. 6 is an enlarged view of fig. 4 at B.

Fig. 7 is an enlarged view at C of fig. 4.

Fig. 8 is another usage state diagram of the present invention.

Detailed Description

As shown in fig. 1-8, a roof fan comprises a base 1, an air duct 2, a hood, fan blades 4, a driving member 5, a first connecting mechanism, a second connecting mechanism and a wind direction adjusting mechanism, wherein the hood comprises a hood main body 3, a driving shaft 31, a cover plate 32, a first driving wheel 33, a first driving wheel 34, a first connecting belt 35, a first driving member 36 and a sealing assembly, and a through hole is formed in the center of the hood main body 3; two ends of the driving shaft 31 are respectively and rotatably connected to the inner wall of the through hole; the cover plate 32 is fixed on the driving shaft and can seal the through hole; the first transmission wheel 33 is fixed on the driving shaft; the first driving member 34 is a motor fixed on the inner wall of the air duct; the first drive wheel 34 is fixed on the output shaft of the first driving member; the first connecting belt 35 is sleeved on the first driving wheel and the first driving wheel; the air duct 2 is detachably connected with the base through a second connecting mechanism; specifically, the second connecting mechanism comprises a mounting groove, a mounting hole 21, an elastic piece 22, an ejector rod 23, a ball 24 and a clamping groove 25, wherein the mounting groove is formed in the base and can be used for inserting the air cylinder; the mounting holes 21 are symmetrically formed in the side wall of the mounting groove; the elastic piece 22 is a spring, and one end of the elastic piece is fixed in the mounting hole; one end of the ejector rod 23 is fixed on the end part of the elastic part; the ball 24 is rotatably connected to the end part of the ejector rod, the bottom end of the air duct is provided with an inclined plane, and the extrudable ejector rod retracts into the mounting hole; the draw-in groove 25 is seted up on the dryer outer wall, and it can supply the ball to get into, then when needing to dismantle the dryer, only need rotate the dryer, make the ball deviate from in the draw-in groove can.

Specifically, the sealing assembly comprises a first sealing groove, a first sealing strip 61, a first sealing plate 62, a second sealing plate 63, a second sealing strip 64, a second sealing groove, a mounting plate 65, a rotating shaft 66, a connecting plate 67, a resetting piece 68 and a push plate 69, wherein the first sealing groove is formed in the inner wall of the through hole; the first sealing strip 61 is made of rubber, is fixed on the side wall of the cover plate in a surrounding manner, and can be clamped into the first sealing groove; the mounting plates 65 are symmetrically fixed on the hood main body; two ends of the rotating shaft 66 are respectively and rotatably connected to the mounting plate; the connecting plate 67 is fixed on the rotating shaft; the reset piece 68 is a torsion spring which is sleeved on the rotating shaft, one torsion arm of the torsion spring is fixed on the rotating shaft, and the other torsion arm of the torsion spring is fixed on the connecting plate 67; the first sealing plate 62 is fixed on the connecting plate, and the first sealing plate is provided with a flow guide groove 621 and a flow guide surface 622; the second sealing plate 63 is fixed on the blast cap main body; the second sealing strips 64 are respectively fixed on the first sealing plate and the second sealing plate; the second seal groove is arranged on the cover plate, the second seal groove can be used for inserting a second seal strip, when the air inlet needs to be enlarged, the first driving piece can be started to drive the driving shaft to rotate, the cover plate rotates to a vertical state from a horizontal state, the first seal plate can keep the vertical state under the action of the reset piece, when the through hole needs to be closed, the cover plate rotates reversely, the cover plate rotates to the horizontal state, the push plate presses downwards, the first seal plate is driven to rotate, when the cover plate rotates to the horizontal state, the first seal plate also rotates to the horizontal state, and the second seal strip is inserted into the second seal groove.

Specifically, the first connecting mechanism comprises a fixing plate 11, a screw 12 and a nut 13, wherein the fixing plate 11 is fixed at the top end of the air duct and is provided with a circular hole; the screw 12 is a conventional metal screw, the upper end of the screw is fixed on the blast cap, and the lower end of the screw passes through a round hole of the fixing plate; the nut 13 is screwed on the screw rod, and the height of the hood can be changed by rotating the nut.

Specifically, the wind direction adjusting mechanism comprises a rotating shaft 7, a wind deflector 71, a second driving wheel 72, a second driving wheel 73, an adjusting driving piece 74 and a second connecting belt 75, wherein the number of the rotating shafts 7 is preferably 4, the rotating shafts are uniformly arranged at the lower end of the wind barrel, one end of each rotating shaft is rotatably connected to the inner wall of the wind barrel, and the other end of each rotating shaft extends out of the wind barrel; the number of the air deflectors 71 is the same as that of the rotating shaft, the air deflectors are respectively fixed on the rotating shaft, arc-shaped convex parts are arranged on two sides of each air deflector, and two ends of each air deflector are in contact with the inner wall of the air duct, so that the air duct can be sealed by rotating the air deflectors to a horizontal state, and the wall of the air duct can be sealed when encountering special weather such as a sand storm lamp, so as to prevent sundries from falling down from the air duct; the second transmission wheel 72 can be selected from gears and is respectively fixed at the end part of the rotating shaft; the adjusting driving element 74 is a motor; the second driving wheel 73 is a gear fixed on the output shaft of the adjusting driving piece; the second connecting belt 75 is made of a chain, and is sleeved on the second driving wheel and the second driving wheel, so that the second driving wheel is driven to rotate by adjusting the driving part, the rotating shaft can be driven to rotate, the inclination angle of the air deflector is changed, and the blowing direction of the air is changed.

Claims

1. The utility model provides a roof fan, includes base (1), locates dryer (2) on the base, with dryer complex hood, locate flabellum (4), drive in the dryer fan pivoted driving piece (5), the first coupling mechanism of connecting dryer and hood, be connected the base is with the second coupling mechanism of dryer and be used for controlling the wind direction adjustment mechanism of wind direction, its characterized in that: the hood is including hood main part (3) that is equipped with the through-hole, locate drive shaft (31) in the through-hole, locate apron (32) on drive shaft (31), locate drive epaxial first drive wheel (33), first drive wheel (34), connection first drive wheel and first drive wheel's first connecting band (35), drive first drive piece (36) and seal assembly of first drive wheel pivoted.

2. A roof fan according to claim 1, wherein: the sealing assembly comprises a first sealing groove arranged on the inner wall of the through hole and a first sealing strip (61) arranged on the side wall of the cover plate.

3. A roof fan according to claim 1, wherein: the sealing assembly further comprises a first sealing plate (62) rotatably arranged on the blast cap main body, a second sealing plate (63) matched with the first sealing plate, a control component for controlling the first sealing plate to rotate, a second sealing strip (64) and a second sealing groove arranged on the cover plate.

4. A roof fan according to claim 3, wherein: the control component comprises a mounting plate (65) arranged on the hood main body, a rotating shaft (66) arranged on the mounting plate, a connecting plate (67) connecting the rotating shaft and the mounting plate, a reset piece (68) sleeved on the rotating shaft and a push plate (69) arranged on the first sealing plate.

5. A roof fan according to claim 3, wherein: the first sealing plate (62) and the second sealing plate (63) are provided with a diversion groove (621) and a diversion surface (622).

6. A roof fan according to claim 1, wherein: the second connecting mechanism comprises a mounting groove arranged on the base, a mounting hole (21) arranged in the base, an elastic piece (22) arranged in the mounting hole, an ejector rod (23) arranged in the mounting hole, a ball (24) arranged on the end part of the ejector rod and a clamping groove (25) arranged on the air duct.

7. A roof fan according to claim 1, wherein: the first connecting mechanism comprises a fixing plate (11) arranged at the upper end of the air duct (2), a screw rod (12) arranged on the fixing plate (11) and a screw cap (13) arranged on the screw rod (12).

8. A roof fan according to claim 1, wherein: the wind direction adjusting mechanism comprises a plurality of rotating shafts (7) uniformly arranged in the wind barrel (2), a wind deflector (71) respectively arranged on the rotating shafts (7), a second driving wheel (72) arranged on the rotating shafts, a second driving wheel (73), an adjusting driving piece (74) driving the driving wheels to rotate, and a second connecting belt (75) sleeved on the second driving wheel and the second driving wheel.