Mute roof fan easy to install

Abstract

The utility model discloses an easy-to-install mute roof fan which comprises a hood, an air duct, a base and a motor, the hood is fixedly connected to the top face of the air duct, the motor is fixed to the middle of the top face of a top plate of the air duct and located in the hood, and a rotating shaft of the motor vertically penetrates through the bottom face of the top plate of the air duct downwards and is fixedly provided with an impeller. The impeller is arranged in the air duct, and a top plate of the air duct is fixed on a top plate of the base through a plurality of threaded connecting rods; the upper portion of a connecting base installed on a roof is inserted into the base in a sleeved mode, the top end face of the connecting base abuts against the bottom face of a top plate of the base in a pressed mode, a plurality of connecting and screwing through holes are formed in four side plates of the base, and screw rod parts of a plurality of adjusting bolts are connected into the corresponding connecting and screwing through holes in a screwed mode. The base and the connecting seat are rotated through the adjusting bolt to drive the positioning part to be inserted into the corresponding positioning concave hole, so that fixation and connection can be completed and achieved conveniently, meanwhile, the base and the air duct are fixed through the threaded connecting rod, and mounting and dismounting are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to ventilation equipment technical field more specifically relates to an easy installation's mute roof fan. BACKGROUND

[0002] The existing roof fan has many kinds, has axial flow type also has centrifugal type, the existing centrifugal roof fan, its wind tube and base between generally adopt a plurality of welding fixed support rod or through a plurality of bolts to be fixed in wind tube and base on support rod connection, its welding mode, is inconvenient to disassemble, and with a plurality of bolt fixed, its disassembly installation is troublesome, is inconvenient to maintain,

[0003] Meanwhile, the existing roof fan is fixed to the connecting seat of the roof, the corresponding position of the side plate of the connecting seat and the base is generally punched, then, during installation, the parts above the base are disassembled, the base is separately installed on the connecting seat, then, the bolt is connected through the corresponding through hole of the side plate of the connecting seat and the base, the connection is troublesome, the installation is troublesome, and the effect is poor. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of mute roof fans of easy installation, it is fixed between the base and connecting seat using adjusting bolt rotation, drive positioning part is inserted into corresponding positioning recess, it can be fixed, realize connection, its connection is convenient, simultaneously, it is fixed using screw connection rod with base and wind tube, its installation disassembly is convenient.

[0005] The technical solution measures of the utility model are as follows:

[0006] A kind of mute roof fan of easy installation, including hood, wind tube, base and motor, the hood is fixedly connected on the top surface of wind tube, motor is fixed in the top surface middle part of the top plate of wind tube, motor is in hood, the rotating shaft of motor is vertically downwards through the bottom surface of the top plate of wind tube and is fixed with impeller, impeller is in wind tube, the top plate of wind tube is fixed on the top plate of base by multiple screw connection rods;

[0007] The upper portion of the connecting seat installed on the roof is inserted into the base, the top end surface of the connecting seat is pressed on the bottom surface of the top plate of the base, a plurality of connecting screw through holes are formed on the four side plates of the base, the screw rod portion of a plurality of adjusting bolts is screwed into the corresponding connecting screw through hole, the inner end of the screw rod portion of the adjusting bolt extends out of the inner side wall of the side plate of the base and is fixed with a pressing plate, the inner end surface of the pressing plate is pressed on the corresponding outer side wall of the connecting seat, and the positioning part formed in the middle part of the inner end surface of the pressing plate is inserted into the positioning recess formed in the corresponding outer side wall of the connecting seat.

[0008] The middle part of the top plate of the base is formed with an upwardly extending extension cylinder part, the diameter of the extension cylinder part is gradually reduced from bottom to top, the side wall section of the extension cylinder part is arc-shaped, and the top end of the extension cylinder part is close to the bottom end of the impeller;

[0009] The bottom plate of the base is fixed with a sound-absorbing mesh plate, sound-absorbing cotton is filled between the bottom surface of the top plate of the base and the sound-absorbing mesh plate, and the side wall of the sound-absorbing mesh plate is welded and fixed on the inner side wall of the corresponding side plate of the base.

[0010] The inner side wall of the top plate and the side plate of the air duct is provided with a porous mesh plate layer, and sound-absorbing cotton is filled between the porous mesh plate layer and the inner side wall of the top plate and the side plate of the air duct.

[0011] A plurality of screw sleeves are welded and fixed on the top surface of the top plate of the base, a plurality of through holes are formed in the top plate of the air duct, the through holes are communicated with the middle through holes of the connecting blocks fixed on the bottom surface of the top plate of the air duct, the bottom surface of the connecting blocks is fixed on the top surface of the porous mesh plate layer below, the bottom end of the middle through holes of the connecting blocks is communicated with and corresponds to the through holes of the porous mesh plate layer below, the bottom surface of the top rotating part of the screw connecting rod is pressed against the top surface of the top plate of the air duct, the screw connecting rod is inserted into the corresponding through holes in the top plate of the air duct, the corresponding middle through holes of the connecting blocks and the corresponding through holes of the porous mesh plate layer, the bottom end of the screw connecting rod is screwed into the corresponding screw sleeve, and the fixing nut is screwed on the screw connecting rod and the top surface of the fixing nut is pressed against the bottom surface of the top porous mesh plate layer.

[0012] The beneficial effects of the utility model lie in:

[0013] 1、 it adopts adjusting bolt rotation between the base and the connecting seat, drives the positioning part to insert into the corresponding positioning concave hole, can complete fixation, realizes connection, and its connection is convenient.

[0014] 2、 it adopts screw connecting rod to fix the base and the air duct, and its installation and dismounting are convenient.

[0015] 3、 the sound-absorbing mesh plate, sound-absorbing cotton and porous mesh plate layer can reduce the noise of the flowing air from the base and the air duct, realize the noise reduction and mute effect. DRAWINGS:

[0016] Fig. 1 It is a partial structure schematic view of the utility model;

[0017] Fig. 2 It is a partial enlarged view of the utility model. CONCRETE IMPLEMENTING METHOD:

[0018] Embodiment: see Figs. 1-2As shown, an easily installed silent roof fan, including a hood 1, a wind pipe 2, a base 3 and a motor 4, the hood 1 is fixedly connected on the top surface of the wind pipe 2, the motor 4 is fixedly connected on the middle part of the top surface of the top plate of the wind pipe 2, the motor 4 is in the hood, the rotating shaft of the motor 4 vertically downwardly penetrates through the bottom surface of the top plate of the wind pipe 2 and is fixedly connected with an impeller 5, the impeller 5 is in the wind pipe 2, the top plate of the wind pipe 2 is fixedly connected on the top plate of the base 3 through a plurality of screw connecting rods 22;

[0019] The upper part of the connecting seat 6 installed on the roof is inserted in the base 3, the top end surface of the connecting seat 6 is pressed against the bottom surface of the top plate of the base 3, a plurality of connecting screw through holes are formed on each of the four side plates of the base 3, the screw rod parts of a plurality of adjusting bolts 31 are screwed in the corresponding connecting screw through holes, the inner end of the screw rod part of the adjusting bolt 31 extends out of the inner side wall of the side plate of the base 3 and is fixedly connected with a pressing plate 32, the inner end surface of the pressing plate 32 is pressed against the corresponding outer side wall of the connecting seat 6, the positioning part 33 formed in the middle part of the inner end surface of the pressing plate 32 is inserted into the positioning recess hole 61 formed in the corresponding outer side wall of the connecting seat 6.

[0020] In the embodiment, by rotating the adjusting bolt 31, the inner end surface of the pressing plate 32 can be pressed against the corresponding outer side wall of the connecting seat 6, and the positioning part 33 is inserted into the corresponding positioning recess hole 61, so that the base 3 and the connecting seat 6 are conveniently connected and installed.

[0021] Further, the outer part of the screw rod part of the adjusting bolt 31 is screwed with a locking nut 39, and the locking nut 39 is pressed against the outer side wall of the corresponding side plate of the base 3.

[0022] By tightening the locking nut 39, the adjusting bolt 31 is not easy to loosen, and the connection firmness is improved.

[0023] Further, the middle part of the top plate of the base 3 is formed with an upwardly extending extension cylinder part 34, the diameter of the extension cylinder part 34 gradually decreases from bottom to top, the side wall cross section of the extension cylinder part 34 is arc-shaped, and the top end of the extension cylinder part 34 is close to the bottom end of the impeller 5.

[0024] The sound-absorbing mesh plate 35 is fixed below the top plate of the base 3, and the middle part of the sound-absorbing mesh plate 35 is also formed with a second upwardly extending extension cylinder part 36, the diameter of the second extension cylinder part 36 gradually decreases from bottom to top, the side wall cross section of the second extension cylinder part 36 is arc-shaped, and the top end of the second extension cylinder part 36 is pressed against the bottom surface of the top plate of the base 3 and is welded and fixed.

[0025] The sound-absorbing cotton 37 is filled between the sound-absorbing mesh plate 35 and the bottom surface of the top plate of the base 3, and the side wall of the sound-absorbing mesh plate 35 is welded and fixed on the inner side wall of the corresponding side plate of the base 3.

[0026] The sound reduction net plate 35 and the sound insulation cotton 37 reduce the noise of the wind passing through the base 3, and improve the noise reduction effect.

[0027] Further, the top end surface of the connecting seat 6 is fixed with an elastic sealing layer 62, which is pressed against the bottom surface of the sound reduction net plate 35.

[0028] The top surface of the top plate of the base 3 is fixed with an upwardly extending guide sleeve body 38, and the extension cylinder part 34 is in the guide sleeve body 38.

[0029] Further, the inner side wall of the top plate and the side plate of the air duct 2 is provided with a porous mesh plate layer 23, and the porous mesh plate layer 23 is filled with the sound insulation cotton 37 between the inner side wall of the top plate and the side plate of the air duct 2.

[0030] This structure further reduces the noise of the wind passing through the air duct 2.

[0031] Further, the top surface of the top plate of the base 3 is welded with a plurality of screw sleeves 7, the top plate of the air duct 2 is formed with a plurality of through holes, the through holes are communicated with the middle through holes of the connecting blocks 24 fixed on the bottom surface of the top plate of the air duct 2, the bottom surface of the connecting blocks 24 is fixed on the top surface of the porous mesh plate layer 23 below, the bottom end of the middle through holes of the connecting blocks 24 is communicated with and corresponds to the through holes of the porous mesh plate layer 23 below, the bottom surface of the top part rotating part of the screw connecting rod 22 is pressed against the top surface of the top plate of the air duct 2, the screw connecting rod 22 is inserted into the corresponding through holes on the top plate of the air duct 2, the corresponding middle through holes of the connecting blocks 24 and the corresponding through holes of the porous mesh plate layer 23, the bottom end of the screw connecting rod 22 is screwed into the corresponding screw sleeves 7, the screw connecting rod 22 is screwed with the fixing nuts 8, and the top surface of the fixing nuts 8 is pressed against the bottom surface of the top porous mesh plate layer 23.

[0032] This structure makes it very convenient to install and disassemble the air duct 2 and the base 3, which only needs to insert the screw connecting rod 22 into the air duct 2, screw the bottom end into the corresponding screw sleeves 7, then rotate the corresponding fixing nuts 8 to press the top surface of the fixing nuts 8 against the bottom surface of the top porous mesh plate layer 23 to fix the air duct 2 and realize installation, which is very convenient.

[0033] When disassembling, only need to loosen the fixing nuts 8 and rotate the screw connecting rod 22 to separate the bottom end from the screw sleeves 7, so as to realize disassembly, which is very convenient.

Claims

1. An easily installed silent roof fan comprising a hood (1), a duct (2), a base (3) and a motor (4), characterized in that: The hood (1) is fixedly connected to the top surface of the air duct (2), the motor (4) is fixedly connected to the middle part of the top surface of the top plate of the air duct (2), the motor (4) is located in the hood (1), the rotating shaft of the motor (4) vertically penetrates through the bottom surface of the top plate of the air duct (2) and is fixedly connected with the impeller (5), the impeller (5) is located in the air duct (2), and the top plate of the air duct (2) is fixedly connected to the top plate of the base (3) through a plurality of screw connecting rods (22); The upper part of the connecting seat (6) installed on the roof is inserted into the base (3), the top end surface of the connecting seat (6) is pressed against the bottom surface of the top plate of the base (3), a plurality of connecting screw through holes are formed in each of the four side plates of the base (3), the screw rod parts of a plurality of adjusting bolts (31) are screwed into the corresponding connecting screw through holes, the inner ends of the screw rod parts of the adjusting bolts (31) extend out of the inner side walls of the side plates of the base (3) and are fixedly connected with pressing plates (32), the inner end surfaces of the pressing plates (32) are pressed against the corresponding outer side walls of the connecting seat (6), and the inner end surface middle parts of the pressing plates (32) are inserted into the positioning recess holes (61) formed in the corresponding outer side walls of the connecting seat (6).

2. A quiet roof fan of claim 1, wherein: The outer part of the screw rod part of the adjusting bolt (31) is screwed with a locking nut (39), and the locking nut (39) is pressed against the outer side wall of the corresponding side plate of the base (3).

3. An easily installed, sound attenuated rooftop fan in accordance with claim 1 wherein: The middle part of the top plate of the base (3) is formed with an upwardly extending extension cylinder part (34), the diameter of the extension cylinder part (34) gradually decreases from bottom to top, the side wall section of the extension cylinder part (34) is in an arc shape, and the top end of the extension cylinder part (34) is close to the bottom end of the impeller (5); The bottom surface of the top plate of the base (3) is fixedly connected with a sound-absorbing mesh plate (35), the middle part of the sound-absorbing mesh plate (35) is also formed with a second upwardly extending extension cylinder part (36), the diameter of the second extension cylinder part (36) gradually decreases from bottom to top, the side wall section of the second extension cylinder part (36) is in an arc shape, and the top end of the second extension cylinder part (36) is pressed against the bottom surface of the top plate of the base (3) and is welded and fixed; The sound-absorbing mesh plate (35) and the bottom surface of the top plate of the base (3) are filled with sound insulation cotton (37), and the side wall of the sound-absorbing mesh plate (35) is welded and fixed to the inner side wall of the corresponding side plate of the base (3).

4. A quiet rooftop fan of claim 3, wherein: The top end surface of the connecting seat (6) is fixedly connected with an elastic sealing layer (62), and the elastic sealing layer (62) is pressed against the bottom surface of the sound-absorbing mesh plate (35).

5. A quiet rooftop fan of claim 3, wherein: The top surface of the top plate of the base (3) is fixedly connected with an upwardly extending guide sleeve body (38), and the extension cylinder part (34) is located in the guide sleeve body (38).

6. An easily installed, sound attenuated rooftop fan in accordance with claim 1 wherein: The inner side walls of the top plate and the side plates of the air duct (2) are provided with a plurality of porous mesh plate layers (23), and the inner side walls of the top plate and the side plates of the air duct (2) are filled with sound insulation cotton (37).

7. A quiet rooftop fan of claim 6, wherein: The top surface of the top plate of the base (3) is welded with a plurality of screw sleeves (7), the top plate of the air duct (2) is formed with a plurality of through holes, the through holes are communicated with the middle through holes of the connecting blocks (24) fixed on the bottom surface of the top plate of the air duct (2), the bottom surface of the connecting blocks (24) is fixed on the top surface of the lower porous screen plate layer (23), the bottom end of the middle through holes of the connecting blocks (24) is communicated with and corresponds to the through holes of the lower porous screen plate layer (23), the bottom surface of the top part rotating part of the screw connecting rod (22) is pressed against the top surface of the top plate of the air duct (2), the screw connecting rod (22) is inserted into the corresponding through holes on the top plate of the air duct (2), the middle through holes of the corresponding connecting blocks (24) and the corresponding through holes of the porous screen plate layer (23), the bottom end of the screw connecting rod (22) is screwed on the corresponding screw sleeve (7), the screw connecting rod (22) is screwed with a fixing nut (8), the top surface of the fixing nut (8) is pressed against the bottom surface of the top porous screen plate layer (23).

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