CN111828357A

CN111828357A - Fan with vibration/noise reduction function

Info

Publication number: CN111828357A
Application number: CN202010727145.7A
Authority: CN
Inventors: 陈媛媛
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-26
Filing date: 2020-07-26
Publication date: 2020-10-27

Abstract

The invention belongs to the technical field of fans, and relates to a fan with damping and noise reducing functions, which comprises a shell, wherein the head of the shell is provided with an arc-shaped accommodating groove, an installing support is arranged in the shell, a motor is installed on the installing support, the front end and the rear end of the shell are respectively provided with a detachable mesh enclosure, the top of the shell is provided with two first lifting rings which are symmetrically arranged, a bottom plate is provided with two supporting seats, a damping mechanism, a first noise reducing mechanism, a second noise reducing mechanism and an adjusting mechanism, the bottom plate is fixedly connected to the top of the damping mechanism, the shell is rotatably connected to the two supporting seats, the adjusting mechanism is fixedly connected with one of the two supporting seats, the first noise reducing mechanism is arranged in the arc-shaped accommodating. The invention counteracts the vibration of the fan during working through the damping mechanism, thereby prolonging the service life of the fan, absorbing the noise generated by the fan during working through the first noise reduction mechanism and the second noise reduction mechanism, and eliminating noise pollution.

Description

Fan with vibration/noise reduction function

Technical Field

The invention relates to the technical field of fans, in particular to a fan with a damping and noise reducing function.

Background

The fan is a driven fluid machine which is mainly applied to the fields of national economy such as metallurgy, petrifaction, electric power, urban rail transit, textile, ships and the like and ventilation of various places, and has a great development prospect in more than twenty potential market fields such as comprehensive utilization of coal gangue, technical improvement of novel dry clinker, energy conservation and comprehensive utilization of resources in metallurgical industry and the like besides the traditional application field. At present, the fan can produce great vibrations and noise when the operation, vibrations are too big can influence the life of fan, and the noise pollution has been produced to the noise is too big to cause harmful effects to people's health.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to solve the problems that the traditional fan can generate larger vibration and noise during operation, the service life of the fan can be influenced due to overlarge vibration, noise pollution is generated due to overlarge noise, and adverse effects are caused on the health of people, the invention provides the fan with the vibration and noise reduction functions, the vibration during the operation of the fan is counteracted through a vibration reduction mechanism, so that the service life of the fan is prolonged, the noise generated during the operation of the fan is absorbed through a first noise reduction mechanism and a second noise reduction mechanism, and the noise pollution is eliminated.

The invention provides a fan with shock absorption and noise reduction functions, which comprises a shell, wherein the head part of the shell is provided with an arc-shaped accommodating groove, an installation bracket is arranged in the shell, a motor is arranged on the installation bracket, a plurality of fan blades are arranged on the output end of the motor, detachable mesh enclosures are arranged at the front end and the rear end of the shell, two first hanging rings which are symmetrically arranged are arranged at the top part of the shell, a bottom plate is arranged on the bottom plate, two supporting seats which are symmetrically arranged are arranged on the bottom plate, a shock absorption mechanism, a first noise reduction mechanism, a second noise reduction mechanism and an adjusting mechanism for adjusting the rotation angle of the shell, the bottom plate is fixedly connected to the top part of the shock absorption mechanism, the shell is rotatably connected to the two supporting seats, the adjusting mechanism is fixedly connected with one of the two supporting seats, the first noise reduction mechanism is arranged in, and the motor is located within the second noise reduction mechanism.

Preferably, the damping mechanism comprises an annular frame body and a supporting plate, a plurality of damping springs are arranged at the top of the supporting plate, four supporting legs which are distributed in a rectangular shape are arranged at the bottom of the supporting plate, a plurality of butting sleeves which are butted with the plurality of damping springs one by one are arranged at the bottom of the bottom plate, the annular frame body is fixedly connected to the top of the supporting plate, and moving gaps are formed between the peripheries of all the bottom plates and the inner wall of the annular frame body.

Preferably, a rubber cushion pad is arranged on the inner wall of the annular frame body and is positioned in the moving gap.

Preferably, the first noise reduction mechanism comprises a drawing plate matched with the arc-shaped accommodating groove, an embedded groove and first sound absorption cotton are arranged on the inner wall of the drawing plate, and the first sound absorption cotton is adhered in the embedded groove.

Preferably, the wall of the embedded groove is provided with a hook and loop fastener, and the back of the first sound-absorbing cotton is provided with a hook and loop fastener.

Preferably, the front side wall of the drawing plate is provided with an auxiliary piece which is convenient for drawing out the drawing plate.

Preferably, the second noise reduction mechanism comprises a motor cover body, an avoiding groove for avoiding the output end of the fan is formed in the front of the motor cover body, a plurality of breathable grooves and second sound absorption cotton are formed in two side walls of the motor cover body, the cross section of the second sound absorption cotton is in a U shape, a plurality of butt-joint grooves in butt joint with the plurality of breathable grooves are formed in two side walls of the second sound absorption cotton, the motor cover body is detachably connected to the top of the mounting support, and the second sound absorption cotton is adhered to the inner wall of the motor cover body.

As preferred, adjustment mechanism is including adjusting the worm wheel, adjusts the worm, the turning handle, be equipped with on the turning handle the locating hole and with locating hole complex locating pin, and two mounting panels, the both sides of shell all are equipped with the pivot, and two pivots rotate respectively and connect on two supporting seats, adjust the worm wheel and install in one of them pivot, two mounting panel symmetries set up on one of them supporting seat to two mounting panels are located and adjust the worm wheel under, adjust the worm and rotate and connect on two mounting panels to adjust worm and adjust the worm wheel meshing, the one end fixed connection of turning handle and regulation worm is located to be equipped with a plurality of on the mounting panel of turning handle one side along turning handle rotation direction evenly distributed's butt joint hole.

Preferably, a mesh enclosure supporting part and two mesh enclosure limiting parts are arranged at the front end and the rear end of the shell, a first clamping groove clamped and matched with the mesh enclosure is formed between the mesh enclosure supporting part and the side wall of the shell, a second clamping groove clamped and matched with the mesh enclosure is formed between the mesh enclosure limiting part and the side wall of the shell, and a second hanging ring is arranged at the top of the mesh enclosure.

Preferably, the invention also comprises a movable cart, and the damping mechanism is fixedly connected to the movable cart.

The invention has the beneficial effects that:

firstly, the fan with the vibration absorption and noise reduction functions provided by the invention has the advantages that the vibration of the fan during working is counteracted through the vibration absorption mechanism, so that the service life of the fan is prolonged, the noise generated during the working of the fan is absorbed through the first noise reduction mechanism and the second noise reduction mechanism, and the noise pollution is eliminated.

Secondly, the fan with the damping and noise reducing functions rotates the rotating handle, the rotating handle drives the adjusting worm to synchronously rotate, and the adjusting worm can drive the adjusting worm wheel to rotate around the axis of the rotating shaft, so that the air outlet angle of the fan is changed.

Thirdly, according to the fan with the damping and noise reducing functions, the mesh enclosure is fixed to the mesh enclosure supporting portion and the two mesh enclosure limiting portions in a clamping and fixing mode, and convenience in detaching the mesh enclosure is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Figure 1 is a schematic perspective view of the present invention,

figure 2 is a partial schematic illustration of the present invention in a partially disassembled state,

figure 3 is a partial exploded view of the present invention,

figure 4 is an enlarged view at a in figure 3,

figure 5 is a third schematic partial exploded view of the present invention,

figure 6 is a partial exploded view of the present invention,

figure 7 is a partial schematic exploded view of the present invention,

figure 8 is a schematic perspective view of the motor casing,

FIG. 9 is a bottom view of the motor housing;

reference numerals: the portable sound absorbing device comprises a shell 1, an arc-shaped accommodating groove 11, a mounting bracket 12, a fan blade 13, a mesh enclosure 14, a second hanging ring 141, a first hanging ring 15, a rotating shaft 16, a mesh enclosure supporting part 17, a first clamping groove 171, a mesh enclosure limiting part 18, a second clamping groove 181, a bottom plate 2, a butt joint sleeve 21, a supporting seat 22, a damping mechanism 3, an annular frame 31, a rubber buffer pad 311, a supporting plate 32, a damping spring 33, a supporting leg 34, a first noise reduction mechanism 4, a drawing plate 41, an embedded groove 411, an auxiliary part 412, first sound absorbing cotton 42, a second noise reduction mechanism 5, a motor cover body 51, an avoiding groove 511, a ventilating groove 512, second sound absorbing cotton 52, a butt joint groove 521, an adjusting mechanism 6, an adjusting worm wheel 641, an adjusting worm 62, a rotating handle 63, a positioning hole 631, a positioning pin 632, a mounting plate 64, a butt joint hole.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

As shown in fig. 1-9, a fan with vibration/noise reduction function comprises a housing 1, a circular arc-shaped accommodating groove 11 is formed at the head of the housing 1, a mounting bracket 12 is arranged in the housing 1, a motor is mounted on the mounting bracket 12, a plurality of fan blades 13 are mounted on the output end of the motor, detachable mesh enclosures 14 are respectively arranged at the front end and the rear end of the housing 1, two first suspension rings 15 which are symmetrically arranged are arranged at the top of the housing 1, a bottom plate 2 is arranged on the bottom plate 2, two symmetrically arranged supporting seats 22 are arranged on the bottom plate 2, a vibration reduction mechanism 3, a first noise reduction mechanism 4, a second noise reduction mechanism 5, and an adjusting mechanism 6 for adjusting the rotation angle of the housing 1, the bottom plate 2 is fixedly connected to the top of the vibration reduction mechanism 3, the housing 1 is rotatably connected to the two supporting seats 22, the adjusting mechanism 6 is fixedly connected, the second noise reduction mechanism 5 is arranged on the mounting bracket 12, and the motor is positioned in the second noise reduction mechanism 5; as shown in fig. 2, in order for the first noise reduction mechanism 4 to be able to be housed in the casing 1, the thickness of the casing 1 of the present invention must be larger than that of a conventional fan case. The weight of the shell 1 increases with the increase in thickness, so that two first lifting rings 15 are designed, which facilitates the transport of the entire design away with lifting equipment.

In a specific embodiment, the damping mechanism 3 includes an annular frame 31 and a support plate 32, a plurality of damping springs 33 are disposed on the top of the support plate 32, four support legs 34 distributed in a rectangular shape are disposed on the bottom of the support plate 32, a plurality of abutting sleeves 21 abutting against the plurality of damping springs 33 are disposed on the bottom of the bottom plate 2, the annular frame 31 is fixedly connected to the top of the support plate 32, and a moving gap 7 is formed between the periphery of all the bottom plates 2 and the inner wall of the annular frame 31; the vibration generated when the motor drives the fan blades 13 to rotate can be transmitted to the shell 1, the supporting seat 22 and the bottom plate 2 in sequence, and then the vibration is offset by the damping spring 33 through the elasticity of the damping spring, so that the aim of damping is fulfilled. The adjusting gap provides a safe distance for the base plate 2 to move in a vibrating manner, so that the base plate is prevented from colliding with the annular frame 31 to generate noise.

Preferably, the top of the damping spring 33 can be directly inserted into the corresponding docking sleeve 21, and the disassembly is simple and convenient.

In one embodiment, a rubber cushion 311 is disposed on the inner wall of the annular frame 31, and the rubber cushion 311 is located in the moving gap 7; the rubber cushion 311 can further cancel the vibration force of the base plate 2 and the housing 1, and no noise is generated when the base plate 2 collides with the rubber cushion 311.

In a specific embodiment, the first noise reduction mechanism 4 comprises a drawing plate 41 matched with the circular arc-shaped accommodating groove 11, an embedded groove 411 and a first sound absorption cotton 42 are arranged on the inner wall of the drawing plate 41, and the first sound absorption cotton 42 is adhered in the embedded groove 411; the first sound absorption cotton 42 absorbs the noise generated by the fan driving fan blades 13. When installing, install first sound absorption cotton 42 in embedded groove 411 earlier, then insert pull board 41 in circular-arc holding tank 11 for first sound absorption cotton 42 not only installs conveniently, but also has hidden effect.

In a specific embodiment, the wall of the insertion slot 411 is provided with a hook and loop fastener, and the back of the first sound absorbing cotton 42 is provided with a hook and loop fastener; paste through the magic and paste the son with the magic and paste female convenience that to improve and change first sound cotton 42 that absorbs.

In one embodiment, the front side wall of the drawing plate 41 is provided with an auxiliary 412 to facilitate its drawing out.

In a specific embodiment, the second noise reduction mechanism 5 includes a motor cover 51, the front portion of the motor cover 51 is provided with an avoidance groove 511 for avoiding the output end of the fan, two side walls of the motor cover 51 are both provided with a plurality of ventilation grooves 512 and second sound absorption cotton 52, the cross section of the second sound absorption cotton 52 is U-shaped, two side walls of the second sound absorption cotton 52 are both provided with a plurality of butt-joint grooves 521 which are in butt joint with the plurality of ventilation grooves 512, the motor cover 51 is detachably connected to the top of the mounting bracket 12, and the second sound absorption cotton 52 is adhered to the inner wall of the motor cover 51; cover the motor with the motor cover body 51, the noise that the motor work sent is through the second cotton 52 elimination of inhaling sound to the noise of whole fan during operation has further been reduced.

In a specific embodiment, the adjusting mechanism 6 includes an adjusting worm wheel 61, an adjusting worm 62, a rotating handle 63, a positioning hole 631 and a positioning pin 632 matching with the positioning hole 631 are provided on the rotating handle 63, and two mounting plates 64 are provided, both sides of the housing 1 are provided with rotating shafts 16, the two rotating shafts 16 are respectively rotatably connected to two supporting seats 22, the adjusting worm wheel 61 is mounted on one of the rotating shafts 16, the two mounting plates 64 are symmetrically provided on one of the supporting seats 22, the two mounting plates 64 are located right below the adjusting worm wheel 61, the adjusting worm 62 is rotatably connected to the two mounting plates 64, the adjusting worm 62 is engaged with the adjusting worm wheel 61, the rotating handle 63 is fixedly connected with one end of the adjusting worm 62, and the mounting plate 64 located on one side of the rotating handle 63 is provided with a plurality of abutting holes 641 uniformly distributed along the rotating direction of the rotating; the rotating handle 63 is rotated, the rotating handle 63 drives the adjusting worm 62 to synchronously rotate, then the adjusting worm 62 can drive the adjusting worm wheel 61 to rotate around the axis of the rotating shaft 16 by adopting a worm and gear principle, and therefore the air outlet angle of the fan is changed. The positioning pin 632 is inserted into the positioning hole 631 and the corresponding docking hole 641, so that the handle 63 is locked, and the blower is quickly positioned.

In one embodiment, the front end and the rear end of the housing 1 are provided with a mesh enclosure supporting portion 17 and two mesh enclosure limiting portions 18, a first engaging groove 171 engaged with the mesh enclosure 14 is formed between the mesh enclosure supporting portion 17 and the side wall of the housing 1, a second engaging groove 181 engaged with the mesh enclosure 14 is formed between the mesh enclosure limiting portion 18 and the side wall of the housing 1, and a second hanging ring 141 is provided on the top of the mesh enclosure 14; the mesh enclosure 14 is quickly fixed in the mesh enclosure supporting portion 17 and the two mesh enclosure limiting portions 18 by means of a snap fit. The second hanging ring 141 is pulled by the draw hook, so that the mesh enclosure 14 can be rapidly detached.

In a specific embodiment, the invention further comprises a movable cart 8, and the damping mechanism 3 is fixedly connected to the movable cart 8; the whole fan is more flexible and is more convenient to move.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a fan with vibration/noise reduction function which characterized in that:

comprises an outer shell (1), wherein the head part of the outer shell (1) is provided with an arc-shaped accommodating groove (11), the outer shell (1) is internally provided with a mounting bracket (12), the mounting bracket (12) is provided with a motor, the output end of the motor is provided with a plurality of fan blades (13), the front end and the rear end of the outer shell (1) are respectively provided with a detachable mesh enclosure (14), the top part of the outer shell (1) is provided with two first lifting rings (15) which are symmetrically arranged,

a bottom plate (2), two symmetrically arranged supporting seats (22) are arranged on the bottom plate (2),

a shock-absorbing mechanism (3),

a first noise reduction mechanism (4),

a second noise reduction mechanism (5), and

an adjusting mechanism (6) for adjusting the rotation angle of the shell (1),

bottom plate (2) fixed connection is at the top of damper (3), shell (1) rotates to be connected on two supporting seats (22), adjustment mechanism (6) and one of them supporting seat (22) fixed connection, first fall make an uproar mechanism (4) and set up in circular-arc holding tank (11), the second falls make an uproar mechanism (5) and sets up on installing support (12) to the motor is located the second and falls make an uproar mechanism (5).

2. The fan with the vibration/noise reduction function according to claim 1, wherein: the damper mechanism (3) includes an annular frame body (31), and

a supporting plate (32), a plurality of damping springs (33) are arranged at the top of the supporting plate (32), four supporting legs (34) which are distributed in a rectangular shape are arranged at the bottom of the supporting plate (32),

the bottom of bottom plate (2) is equipped with a plurality of and a plurality of damping spring (33) butt joint sleeve (21) of butt joint one by one, annular frame body (31) fixed connection has formed removal space (7) between all around of bottom plate (2) and annular frame body (31) inner wall at the top of backup pad (32).

3. The fan with the vibration/noise reduction function according to claim 2, wherein: the inner wall of the annular frame body (31) is provided with a rubber buffer pad (311), and the rubber buffer pad (311) is positioned in the moving gap (7).

4. The fan with the vibration/noise reduction function according to claim 1, wherein: the first noise reduction mechanism (4) comprises a drawing plate (41) matched with the arc-shaped accommodating groove (11), an embedded groove (411) and first sound absorption cotton (42) are arranged on the inner wall of the drawing plate (41), and the first sound absorption cotton (42) is fixedly adhered in the embedded groove (411).

5. The fan with vibration/noise reduction function of claim 4, wherein: the wall of the embedded groove (411) is provided with a magic tape, and the back of the first sound absorbing cotton (42) is provided with a magic tape female tape.

6. The fan with the vibration and noise reduction function according to claim 4 or 5, wherein: an auxiliary piece (412) convenient for pulling out the drawing plate is arranged on the front side wall of the drawing plate (41).

7. The fan with the vibration/noise reduction function according to claim 1, wherein: the second noise reduction mechanism (5) comprises a motor cover body (51), an avoiding groove (511) for avoiding the output end of the fan is arranged at the front part of the motor cover body (51), a plurality of ventilating grooves (512) are arranged on two side walls of the motor cover body (51), and

the cross section of the second sound-absorbing cotton (52) is U-shaped, a plurality of butt-joint grooves (521) which are in butt joint with a plurality of ventilation grooves (512) are respectively arranged on the two side walls of the second sound-absorbing cotton (52),

the motor cover body (51) is detachably connected to the top of the mounting bracket (12), and the second sound-absorbing cotton (52) is adhered to the inner wall of the motor cover body (51).

8. The fan with the vibration/noise reduction function according to claim 1, wherein: the adjusting mechanism (6) comprises an adjusting worm wheel (61),

an adjusting worm (62) is arranged on the adjusting worm,

a rotating handle (63), a positioning hole (631) and a positioning pin (632) matched with the positioning hole (631) are arranged on the rotating handle (63), an

Two mounting plates (64) are provided,

the both sides of shell (1) all are equipped with pivot (16), and two pivot (16) rotate respectively and connect on two supporting seats (22), adjust worm wheel (61) and install on one of them pivot (16), and two mounting panel (64) symmetries set up on one of them supporting seat (22) to two mounting panels (64) are located and adjust worm wheel (61) under, adjust worm (62) and rotate and connect on two mounting panels (64), and adjust worm (62) and adjust worm wheel (61) meshing, turning handle (63) and the one end fixed connection who adjusts worm (62) are located and are equipped with a plurality of on mounting panel (64) of turning handle (63) one side and rotate butt joint hole (641) that direction evenly distributed along turning handle (63).

9. The fan with the vibration/noise reduction function according to claim 1, wherein: both ends all are equipped with screen panel bearing portion (17) and two spacing portions of screen panel (18) around shell (1), screen panel bearing portion (17) and shell (1) lateral wall between form with screen panel (14) block complex first block groove (171), formed between screen panel spacing portion (18) and shell (1) lateral wall with screen panel (14) block complex second block groove (181), the top of screen panel (14) is equipped with second rings (141).

10. The fan with the vibration/noise reduction function according to claim 1, wherein: still including removing shallow (8), damper (3) fixed connection is on removing shallow (8).