CN214145962U

CN214145962U - DWT low noise roof fan with function of making an uproar is fallen in resonance

Info

Publication number: CN214145962U
Application number: CN202022937555.2U
Authority: CN
Inventors: 陈春兰; 刘霄奕; 刑国伟; 邓剑华; 韦英气
Original assignee: Guangxi Zhengheweiye Firefighting Co ltd
Current assignee: Guangxi Zhengheweiye Firefighting Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-09-07
Anticipated expiration: 2030-12-10

Abstract

The utility model provides a DWT low noise roof fan with function of making an uproar falls in resonance. DWT low noise roof fan with function of making an uproar falls in resonance includes the base, prevent wind cap and motor, the both sides of preventing wind cap bottom all are provided with connection structure, connection structure includes fixed block, mounting panel and connecting rod, the inside of fixed block is hollow structure. The utility model provides a DWT low noise roof fan with function of making an uproar falls in resonance, rotate the lead screw through the connecting axle, the lead screw drives the connecting block through removing the cover and removes, the connecting block drives the connecting plate and shifts up, thereby the connecting rod shifts up, the connecting rod drives the sliding sleeve and slides on the connecting rod, thereby drive the helping hand pole at the sliding sleeve back and promote the slide bar, the slide bar drives in the spliced pole card goes into the connecting hole that corresponds, with this cap and dryer fixed connection will prevent wind, be convenient for prevent wind the dismouting of cap, in order to make things convenient for the later stage to the maintenance of motor and impeller subassembly.

Description

DWT low noise roof fan with function of making an uproar is fallen in resonance

Technical Field

The utility model relates to a roof fan field especially relates to a DWT low noise roof fan with function of making an uproar falls in resonance.

Background

The roof fan is installed and is aired exhaust on the roof and take a breath, because the particularity of installation service environment has decided that the fan uses the special of material and structure, and the roof fan sets up the device that prevents the air refluence after shutting down, because the high-speed rotation of fan under the hot pressing effect causes the interior wind speed of dryer to increase a lot, and the fan is reversed and is very unfavorable to the start-up of motor, probably because of the too big damage of starting current.

In order to prevent that roof fan from receiving soaking of rainwater and drenching and damaging, the cap is prevent wind in roof fan's dryer top can install one, but, the maintenance and the change of the later stage motor of being not convenient for and fan blade of the mounting means of preventing wind the cap mostly, when motor trouble or fan blade need clear up the maintenance, relatively consume manpower and time on dismantling the cap of preventing wind.

Therefore, it is necessary to provide a DWT low noise roof fan with a resonance noise reduction function to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a DWT low noise roof fan with function of making an uproar falls in resonance has solved the maintenance and the change that the mounting means of mostly preventing wind the cap is not convenient for later stage motor and fan blade, and when motor broke down or the fan blade need clear up the maintenance, the problem that more expends manpower and time on the cap is prevented wind in the dismantlement.

In order to solve the technical problem, the DWT low-noise roof fan with the resonance noise reduction function provided by the utility model comprises a base, a wind-proof cap and a motor, wherein both sides of the bottom of the wind-proof cap are provided with connecting structures, each connecting structure comprises a fixed block, a mounting plate and a connecting rod, the inside of each fixed block is of a hollow structure, the outer surface of each connecting rod is connected with a sliding sleeve in a sliding way, the front surface and the back surface of each sliding sleeve are respectively and rotatably connected with a boosting rod, the bottom of each connecting rod is fixedly connected with a connecting plate, the inside of each connecting plate is provided with a square hole, the top of the inner wall of each fixed block is fixedly connected with a support plate, the right side of each support plate is provided with a sliding rod, one end of each sliding rod penetrates through the support plate and extends to the left side of the support plate, and one end of each sliding rod extends to the left side of the support plate is fixedly connected with a connecting column, a screw rod is rotatably connected between the two sides of the inner wall of the fixed block, the outer surface of the screw rod is in threaded connection with a movable sleeve, and the front side of the movable sleeve is fixedly connected with a connecting block;

fixed block fixed connection is in the bottom of preventing wind the cap, the top and the bottom of mounting panel respectively with the top and the bottom fixed connection of fixed block inner wall, the inside of mounting panel is provided with vertical logical groove, connecting rod sliding connection is in leading to the groove on the mounting panel, and the one end sliding connection of connecting rod is in one side of fixed block inner wall, the one end of two helping hand poles rotates the back of connecting at the front of mounting panel and slide bar respectively, the department of running through of slide bar and backup pad is sliding connection, the lead screw is in the back of mounting panel, the one end of lead screw runs through the fixed block and extends to the outside of fixed block, and the lead screw extends to the outside one end fixedly connected with connecting axle of fixed block, connecting block sliding connection is inside the square hole.

Preferably, the top of the base is fixedly connected with an air duct, and the inner surface of the air duct is provided with two placing grooves.

Preferably, two the both sides of standing groove inner wall all are provided with the chucking structure, the chucking structure includes mounting groove and straight-bar, and one side intercommunication of mounting groove and standing groove inner wall, the one end of straight-bar run through the dryer and extend to the top of dryer, and the department of running through of straight-bar and dryer is sliding connection.

Preferably, the bottom of the straight rod is fixedly connected with a return spring, and one end of the return spring is fixedly connected with the bottom of the inner wall of the mounting groove.

Preferably, one side of the straight rod is rotatably connected with a push-pull rod, the bottom of the inner wall of the mounting groove is slidably connected with a clamping block, and one end of the push-pull rod is rotatably connected with one side of the clamping block.

Preferably, the both sides of dryer all are provided with the connecting hole, the equal fixedly connected with mount in both sides of motor, the connecting hole with place the position skew in groove, the motor passes through prior art and external control power connection, all be provided with the hole with fixture block looks adaptation on two mounts.

Preferably, the tops of the two fixing frames are fixedly connected with handles, and one end of the output shaft of the motor is fixedly connected with the impeller assembly.

Compared with the prior art, the utility model provides a DWT low noise roof fan with function of making an uproar falls in resonance has following beneficial effect:

(1) the utility model provides a DWT low noise roof fan with resonance noise reduction function, rotate the lead screw through the connecting axle, the lead screw drives the connecting block through the movable sleeve and moves, the connecting block drives the connecting plate and shifts up, thereby the connecting rod shifts up, the connecting rod drives the sliding sleeve and slides on the connecting rod, thereby drive the helping hand pole at the sliding sleeve back and promote the slide bar, the slide bar drives the spliced pole card and goes into in the corresponding connecting hole, will prevent wind cap and dryer fixed connection with this, be convenient for prevent wind the dismouting of cap, in order to make things convenient for the maintenance to motor and impeller subassembly in the later stage;

(2) the utility model provides a DWT low noise roof fan with function of making an uproar falls in resonance, prevent wind the cap and push down the straight-bar, the straight-bar moves down the one end that drives the push-and-pull rod and moves down, and the push-and-pull rod promotes the fixture block, and the hole on the mount is gone into to the fixture block card to this is fixed with the motor chucking, prevents that vibrations that the motor during operation produced from making impeller assembly rock, the dismouting of the motor of being convenient for and dryer, so that later stage maintenance.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of a DWT low-noise roof fan with a resonance noise reduction function according to the present invention;

FIG. 2 is an enlarged view of A shown in FIG. 1;

fig. 3 is a schematic view of an internal cross-sectional structure of the air duct shown in fig. 1.

Reference numbers in the figures: 1. a base; 2. a wind cap; 3. a motor; 4. a connecting structure; 41. a fixed block; 42. mounting a plate; 43. a connecting rod; 44. a sliding sleeve; 45. a booster lever; 46. a connecting plate; 47. a square hole; 48. a support plate; 49. a slide bar; 410. connecting columns; 411. a screw rod; 412. moving the sleeve; 413. connecting blocks; 5. an air duct; 6. a placement groove; 7. a clamping structure; 71. mounting grooves; 72. a straight rod; 73. a return spring; 74. a push-pull rod; 75. a clamping block; 8. connecting holes; 9. a fixed mount; 10. a handle; 11. an impeller assembly.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a DWT low noise roof fan with a resonance noise reduction function according to the present invention; FIG. 2 is an enlarged view of A shown in FIG. 1; fig. 3 is a schematic view of an internal cross-sectional structure of the air duct shown in fig. 1. DWT low noise roof fan with resonance function of making an uproar falls includes base 1, prevent wind cap 2 and motor 3, the both sides of preventing wind cap 2 bottom all are provided with connection structure 4, connection structure 4 includes fixed block 41, mounting panel 42 and connecting rod 43, the inside of fixed block 41 is hollow structure, the surface sliding connection of connecting rod 43 has sliding sleeve 44, sliding sleeve 44 all rotates with the back and is connected with helping hand pole 45, the bottom fixedly connected with connecting plate 46 of connecting rod 43, the inside of connecting plate 46 is provided with square hole 47, the top fixedly connected with backup pad 48 of fixed block 41 inner wall, the right side of backup pad 48 is provided with slide bar 49, the one end of slide bar 49 runs through the backup pad 48 and extends to the left side of backup pad 48, slide bar 49 extends to the left one end fixedly connected with spliced pole 410 of backup pad 48, a screw rod 411 is rotatably connected between two sides of the inner wall of the fixed block 41, a movable sleeve 412 is in threaded connection with the outer surface of the screw rod 411, and a connecting block 413 is fixedly connected to the front surface of the movable sleeve 412;

fixed block 41 fixed connection is in the bottom of preventing wind cap 2, the top and the bottom of mounting panel 42 respectively with the top and the bottom fixed connection of fixed block 41 inner wall, the inside of mounting panel 42 is provided with vertical logical groove, connecting rod 43 sliding connection is in the logical groove on mounting panel 42, and the one end sliding connection of connecting rod 43 is in one side of fixed block 41 inner wall, the one end of two helping hand poles 45 rotates the front of connection at mounting panel 42 and the back of slide bar 49 respectively, the department of running through of slide bar 49 and backup pad 48 is sliding connection, lead screw 411 is in the back of mounting panel 42, the one end of lead screw 411 runs through fixed block 41 and extends to the outside of fixed block 41, and lead screw 411 extends to the outside one end fixedly connected with connecting axle of fixed block 41, connecting block 413 sliding connection is inside square hole 47.

The top of base 1 is fixedly connected with dryer 5, the internal surface of dryer 5 is provided with two standing grooves 6.

Two the both sides of standing groove 6 inner wall all are provided with chucking structure 7, chucking structure 7 includes mounting groove 71 and straight-bar 72, and one side intercommunication of mounting groove 71 and standing groove 6 inner wall, the one end of straight-bar 72 run through dryer 5 and extend to the top of dryer 5, and the department of running through of straight-bar 72 and dryer 5 is sliding connection.

The bottom of the straight rod 72 is fixedly connected with a return spring 73, and one end of the return spring 73 is fixedly connected with the bottom of the inner wall of the mounting groove 71.

One side of the straight rod 72 is rotatably connected with a push-pull rod 74, the bottom of the inner wall of the mounting groove 71 is slidably connected with a fixture block 75, and one end of the push-pull rod 74 is rotatably connected with one side of the fixture block 75.

Both sides of dryer 5 all are provided with connecting hole 8, the equal fixedly connected with mount 9 in both sides of motor 3, the skew of connecting hole 8 and standing groove 6, motor 3 is connected through prior art and external control power, all is provided with the hole with 75 looks adaptations of fixture block on two mounts 9.

The top of the two fixing frames 9 is fixedly connected with a handle 10, and one end of an output shaft of the motor 3 is fixedly connected with an impeller assembly 11.

The utility model provides a DWT low noise roof fan with function of making an uproar falls in resonance's theory of operation as follows:

the two fixing frames 9 are placed into the air duct 5 corresponding to the placing grooves 6, the windproof cap 2 is placed at the bottom of the air duct 5, the windproof cap 2 presses the straight rod 72 downwards, the straight rod 72 moves downwards to drive one end of the push-pull rod 74 to move downwards, the push-pull rod 74 pushes the fixture block 75, the fixture block 75 is clamped into the hole in the fixing frame 9, the motor 3 is clamped and fixed, vibration generated during the working of the motor 3 is prevented from shaking the impeller assembly 11, the motor 3 and the air duct 5 are convenient to disassemble and assemble, and later maintenance is facilitated;

rotate lead screw 411 through the connecting axle, lead screw 411 drives and removes cover 412 and removes, it drives connecting block 413 and removes to remove cover 412, connecting block 413 removes and drives connecting plate 46 and shift up gradually, thereby connecting rod 43 shifts up, it rotates to drive the positive helping hand pole 45 of sliding sleeve 44 when connecting rod 43 shifts up, this helping hand pole 45 promotes sliding sleeve 44 and slides on connecting rod 43, thereby drive helping hand pole 45 at the back of sliding sleeve 44 and promote slide bar 49, slide bar 49 drives spliced pole 410 card and goes into in the connecting hole 8 that corresponds, with this cap 2 and dryer 5 fixed connection will prevent wind, be convenient for prevent wind the dismouting of cap 2, in order to make things convenient for later stage to the maintenance of motor 3 and impeller subassembly 11.

the screw rod 411 is rotated through the connecting shaft, the screw rod 411 drives the connecting block 413 to move through the moving sleeve 412, the connecting block 413 drives the connecting plate 46 to move upwards, so that the connecting rod 43 moves upwards, the connecting rod 43 drives the sliding sleeve 44 to slide on the connecting rod 43, the boosting rod 45 on the back of the sliding sleeve 44 is driven to push the sliding rod 49, the sliding rod 49 drives the connecting column 410 to be clamped into the corresponding connecting hole 8, the windproof cap 2 and the air duct 5 are fixedly connected, the windproof cap 2 is convenient to disassemble and assemble, and the motor 3 and the impeller assembly 11 are convenient to maintain at a later stage;

the wind cap 2 presses the straight rod 72 downwards, the straight rod 72 moves downwards to drive one end of the push-pull rod 74 to move downwards, the push-pull rod 74 pushes the fixture block 75, the fixture block 75 is clamped into the hole in the fixing frame 9, the motor 3 is clamped and fixed, the impeller assembly 11 is prevented from shaking due to vibration generated when the motor 3 works, the motor 3 and the air duct 5 are convenient to disassemble and assemble, and later maintenance is facilitated.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a DWT low noise roof fan with function of making an uproar falls in resonance, includes base (1), prevent wind cap (2) and motor (3), its characterized in that: the windproof hood is characterized in that connecting structures (4) are arranged on two sides of the bottom of the windproof hood (2), each connecting structure (4) comprises a fixing block (41), a mounting plate (42) and a connecting rod (43), the inside of each fixing block (41) is of a hollow structure, a sliding sleeve (44) is slidably connected to the outer surface of each connecting rod (43), a boosting rod (45) is rotatably connected to the front surface and the back surface of each sliding sleeve (44), a connecting plate (46) is fixedly connected to the bottom of each connecting rod (43), a square hole (47) is formed in the connecting plate (46), a supporting plate (48) is fixedly connected to the top of the inner wall of each fixing block (41), a sliding rod (49) is arranged on the right side of the supporting plate (48), one end of each sliding rod (49) penetrates through the supporting plate (48) and extends to the left side of the supporting plate (48), and the sliding rod (49) extends to a connecting column (410) fixedly connected to the left end of the supporting plate (48), the lead screw (411) is rotatably connected between two sides of the inner wall of the fixed block (41), a movable sleeve (412) is connected to the outer surface of the lead screw (411) in a threaded mode, and a connecting block (413) is fixedly connected to the front face of the movable sleeve (412).

2. A DWT low-noise roof fan with resonance noise reduction function according to claim 1, characterized in that the top of the base (1) is fixedly connected with an air duct (5), and the inner surface of the air duct (5) is provided with two placing grooves (6).

3. A DWT low-noise roof fan with resonance noise reduction function according to claim 2, characterized in that, the two sides of the inner wall of the two placing slots (6) are provided with clamping structures (7), the clamping structures (7) comprise mounting slots (71) and straight rods (72).

4. A DWT low-noise roof fan with resonance noise reduction function according to claim 3, characterized in that, the bottom of the straight rod (72) is fixedly connected with a return spring (73), and one end of the return spring (73) is fixedly connected with the bottom of the inner wall of the mounting groove (71).

5. A DWT low-noise roof fan with resonance noise reduction function according to claim 4, characterized in that, a push-pull rod (74) is rotatably connected to one side of the straight rod (72), and a block (75) is slidably connected to the bottom of the inner wall of the mounting groove (71).

6. A DWT low-noise roof fan with resonance noise reduction function according to claim 2, characterized in that, both sides of the wind cylinder (5) are provided with connecting holes (8), and both sides of the motor (3) are fixedly connected with a fixing frame (9).

7. A DWT low-noise roof fan with resonance noise reduction function according to claim 6, characterized in that the top of both the fixed frames (9) is fixedly connected with a handle (10), and one end of the output shaft of the motor (3) is fixedly connected with an impeller assembly (11).