CN216812207U - Low-noise fan with double-blade impeller - Google Patents

Abstract

The utility model relates to the technical field of fans and discloses a low-noise fan with a double-blade impeller, which comprises a fan, wherein the bottom of the fan is provided with a base, the top of the base is in threaded connection with a support, the upper surface of one end of the support is fixedly provided with a motor in a threaded manner, the front end of the motor is connected with the impeller, the other end of the support is fixedly provided with a shell in a threaded manner, the top of the shell is provided with an air outlet, the air outlet is spliced with an inserting plate, and two sides of the air outlet are provided with air cylinders. This low noise fan with bilobed blade impeller through set up the fixed block around the base, and lower margin threaded connection is inside the fixed block, like this under the circumstances of unevenness on ground, can adjust lower margin thread and make the fan leveling, and the fan is worked under the horizontal condition, is favorable to reducing vibrations, sets up rubber pad one bottom the motor, prevents hard contact between motor and the support, and the rubber pad one can absorb the vibrations that the motor during operation produced, noise abatement.

Description

Low-noise fan with double-blade impeller

Technical Field

The utility model relates to the technical field of fans, in particular to a low-noise fan with a double-blade impeller.

Background

The fan is a machine which relies on input mechanical energy to improve gas pressure and discharge gas, and is a driven fluid machine, the fan is a short form of habit of China on gas compression and gas delivery machines, generally, the fan comprises a ventilator and a blower, the gas compression and gas delivery machines are machines which convert rotating machines into gas pressure energy and kinetic energy and deliver gas out, at present, the existing fan with a double-blade impeller is mainly realized by a double-sided structure, the conventional fan has high mechanical noise, is easy to cause noise pollution and influence working environment, and under some special conditions, the fan is stopped for a short time and has high energy consumption when being started.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the low-noise fan with the double-blade impeller, which has the advantages of noise reduction, controllable closing of an outlet channel and the like, and solves the technical problems.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a low noise fan with bilobed blade impeller, includes the fan, the fan bottom is provided with the base, base top threaded connection has the support, support one end upper surface thread tightening has the motor, the motor front end is connected with the impeller, support other end thread tightening has the casing, the casing top is equipped with the air outlet, air outlet grafting picture peg, the cylinder is installed to the air outlet both sides, the welding of the inside and outside both sides of base has the fixed block, fixed block internal thread connects lower margin, through above-mentioned technical scheme, sets up the fixed block around the base, and lower margin threaded connection is inside the fixed block, like this under the uneven circumstances in ground, can adjust lower margin screw thread and make the fan leveling, and the fan works under the horizontal condition, is favorable to reducing vibrations, noise abatement.

Preferably, a first rubber pad is arranged at the bottom of the motor, and a first rubber pad is arranged between the motor and the support.

Through above-mentioned technical scheme, set up rubber pad one in the motor bottom, prevent hard contact between motor and the support, and the vibrations that motor during operation produced can be absorbed to rubber pad one, noise abatement.

Preferably, cylinder afterbody swing joint is in the air outlet both sides, cylinder front end swing joint is in the picture peg lower surface, the picture peg passes through cylinder and air outlet swing joint.

Through above-mentioned technical scheme, the picture peg is pegged graft inside the air outlet, and the cylinder is connected between air outlet and picture peg, can drive the automatic air outlet that closes through the cylinder like this, need not stop fan work in some special occasions, can save the energy resource consumption of shutting down when starting like this, also is favorable to prolonging fan life.

Preferably, the sound-absorbing cotton is arranged in the casing, and the air inlet of the casing is provided with a filter screen.

Through above-mentioned technical scheme, set up in the casing and inhale the sound cotton, produced air current noise when can the high-speed rotation of effective absorption impeller, the filter screen that is equipped with can completely cut off the inspiratory dust of air intake.

Preferably, the upper surface of the base is provided with a second rubber pad, and the second rubber pad is positioned between the upper surface of the base and the bottom of the support.

Through above-mentioned technical scheme, the motor work drives the produced vibrations of impeller rotation, absorbs through rubber pad two, noise abatement.

Compared with the prior art, the utility model provides a low-noise fan with a double-blade impeller, which has the following beneficial effects:

1. this low noise fan with bilobed blade impeller through set up the fixed block around the base, and lower margin threaded connection is inside the fixed block, like this under the circumstances of unevenness on ground, can adjust lower margin thread and make the fan leveling, and the fan is worked under the horizontal condition, is favorable to reducing vibrations, sets up rubber pad one bottom the motor, prevents hard contact between motor and the support, and the rubber pad one can absorb the vibrations that the motor during operation produced, noise abatement.

2. This low noise fan with bilobed blade impeller, peg graft inside the air outlet through the picture peg, the cylinder is connected between air outlet and picture peg, can drive the automatic air outlet that closes through the cylinder like this, need not stop fan work in some special occasions, can save the energy resource consumption of shutting down when starting like this, also be favorable to extension fan life, inhale the sound cotton in the inside setting of casing, produced air current noise when can the high-speed rotation of active absorption impeller, the filter screen that is equipped with, can completely cut off the inspiratory dust of air intake, the motor work drives the produced vibrations of impeller rotation, absorb through rubber pad two, noise abatement.

Drawings

FIG. 1 is a schematic perspective view of a blower according to the present invention;

FIG. 2 is a schematic view of a front view of the fan of the present invention;

FIG. 3 is a schematic side view of a fan according to the present invention;

fig. 4 is a schematic top view of the fan of the present invention.

Wherein: 1. a fan; 2. a base; 3. a support; 4. a first rubber pad; 5. a motor; 6. a housing; 7. a filter screen; 8. an air outlet; 9. inserting plates; 10. a cylinder; 11. an impeller; 12. a second rubber pad; 21. a fixed block; 22. and (5) ground feet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-4, a low noise fan with a dual-blade impeller comprises a fan 1, a base 2 is arranged at the bottom of the fan 1, a support 3 is connected with the top of the base 2 through screw threads, a motor 5 is fixed on the upper surface of one end of the support 3 through screw threads, an impeller 11 is connected at the front end of the motor 5, a housing 6 is fixed on the other end of the support 3 through screw threads, an air outlet 8 is arranged at the top of the housing 6, an insert plate 9 is inserted into the air outlet 8, air cylinders 10 are arranged at two sides of the air outlet 8, specifically, fixed blocks 21 are welded at the inner side and the outer side of the base 2, and feet 22 are connected inside the fixed blocks 21 through screw threads, the periphery of the base 2 is provided with a fixed block 21, the inner part of the fixed block 21 is connected with an anchor 22 by screw threads, thus under the condition that the ground is uneven, the screw thread of the foot margin 22 can be adjusted to level the fan 1, and the fan 1 works under the horizontal condition, so that the vibration and the noise are reduced.

Specifically, motor 5 bottom is provided with rubber pad one 4, is provided with rubber pad one 4 between motor 5 and the support 3, and the advantage is, sets up rubber pad one 4 in motor 5 bottom, prevents hard contact between motor 5 and the support 3, and rubber pad one 4 can absorb the vibrations that motor 5 during operation produced, noise abatement.

Specifically, cylinder 10 afterbody swing joint is in 8 both sides of air outlet, cylinder 10 front end swing joint is in picture peg 9 lower surface, picture peg 9 passes through cylinder 10 and 8 swing joint of air outlet, the advantage is, picture peg 9 is pegged graft inside 8 of air outlet, cylinder 10 is connected between air outlet 8 and picture peg, can drive automatic air outlet 8 that closes through cylinder 10 like this, need not stop the fan work in some special occasions, can save the energy resource consumption of shutting down when starting like this, also be favorable to prolonging fan life.

Specifically, the sound absorption cotton is arranged inside the casing 6, the filter screen 7 is arranged at the air inlet of the casing 6, and the air suction device has the advantages that the sound absorption cotton is arranged inside the casing 6, so that air flow noise generated when the impeller 11 rotates at a high speed can be effectively absorbed, and the filter screen 7 can isolate dust sucked by the air inlet.

Specifically, base 2 upper surface is provided with rubber pad two 12, and rubber pad two 12 is located between base 2 upper surface and the support 3 bottom, and the advantage is, and the produced vibrations of motor 5 work drive impeller 11 rotation are absorbed through rubber pad two 12, noise abatement.

When the fan is used, the fixing block 21 is arranged on the periphery of the base 2, the feet 22 are in threaded connection with the inside of the fixing block 21, so that the fan 1 can be leveled by adjusting the threads of the feet 22 under the condition that the ground is uneven, the fan 1 works under the horizontal condition, vibration is favorably reduced, the first rubber pad 4 is arranged at the bottom of the motor 5, hard contact between the motor 5 and the support 3 is prevented, the first rubber pad 4 can absorb vibration generated when the motor 5 works and reduce noise, the fan is inserted into the air outlet 8 through the inserting plate 9, the air cylinder 10 is connected between the air outlet 8 and the inserting plate, so that the air cylinder 10 can drive the air outlet 8 to be automatically closed, the fan does not need to stop working in some special occasions, energy consumption during starting can be saved, the service life of the fan is favorably prolonged, sound-absorbing cotton is arranged inside the shell 6, and airflow noise generated when the impeller 11 rotates at a high speed can be effectively absorbed, the filter screen 7 is arranged to isolate dust sucked from the air inlet, and the motor 5 drives the impeller 11 to rotate to generate vibration which is absorbed by the rubber pad II 12 to reduce noise.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a low noise fan with bilobed wheel, includes fan (1), its characterized in that: fan (1) bottom is provided with base (2), base (2) top threaded connection has support (3), surface thread is fixed with motor (5) on support (3) one end, motor (5) front end is connected with impeller (11), support (3) another end threaded connection has casing (6), casing (6) top is equipped with air outlet (8), air outlet (8) grafting picture peg (9), cylinder (10) are installed to air outlet (8) both sides, the welding of the inside and outside both sides of base (2) has fixed block (21), fixed block (21) internal thread connects lower margin (22).

2. A low noise blower provided with a double-bladed impeller according to claim 1, characterized in that: the motor is characterized in that a first rubber pad (4) is arranged at the bottom of the motor (5), and the first rubber pad (4) is arranged between the motor (5) and the support (3).

3. A low noise blower provided with a double-bladed impeller according to claim 1, characterized in that: cylinder (10) afterbody swing joint in air outlet (8) both sides, cylinder (10) front end swing joint in picture peg (9) lower surface, picture peg (9) are through cylinder (10) and air outlet (8) swing joint.

4. A low noise blower provided with a double-bladed impeller according to claim 1, characterized in that: the sound-absorbing cotton is arranged inside the casing (6), and a filter screen (7) is arranged at the air inlet of the casing (6).

5. A low noise blower provided with a double-bladed impeller according to claim 1, characterized in that: the upper surface of the base (2) is provided with a second rubber pad (12), and the second rubber pad (12) is located between the upper surface of the base (2) and the bottom of the support (3).

Images