CN209557351U - A kind of noise-eliminating device for air-blower - Google Patents

Abstract

The utility model discloses a kind of noise-eliminating device for air-blower, including fixed cylinder, blower is nested by flexible anti-vibration is located in fixed cylinder the noise of vibration generation when reducing fan operation, and air inlet Sound damping cover is respectively equipped at the air inlet and air outlet of fixed cylinder inner blower and is made an uproar with air outlet Sound damping cover with reducing the wind generated at the air inlet and air outlet of blower in fan operation.The utility model its it is simple and compact for structure rationally, it is low in cost, three big sources of noise are generated from blower to absorb and reduce noise by using flexible anti-vibration set and air outlet Sound damping cover and air inlet Sound damping cover, in the case where hardly loss wind-force, so that noise is greatly reduced when blower works, and the exhaust vent that air inlet covers on upper air inlet hole and muffler plate also has the function of micro silencer, the generation for reducing noise further.

Description

A kind of noise-eliminating device for air-blower

Technical field

The utility model relates to blower technical fields, and in particular to a kind of noise-eliminating device for air-blower.

Background technique

Blower is a kind of general machinery equipment, and use scope is very wide, but in the case where not using noise countermeasure, blower Inlet and outlet, up to 110~120 decibels, largely effects on the health and interference environment of user to noise emitted by environment, with Stepping up for people's living standard, it is more and more sensitive to the noise of blower used on indoor electric appliance；Existing installation is eliminated the noise The problems such as blower of measure exists, and noise reduction is undesirable, and wind loss is big, size change very big, and structure is complicated, at high cost.It is now anxious The novel fan silencing apparatus that a kind of noise is small, wind loss is small, structure is simple, at low cost need to be developed.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a kind of noise-eliminating device for air-blower, conjunction simple and compact for structure Reason, noise is small, wind loss is small, manufacturing cost is cheap.

In order to achieve the above objectives, the utility model is achieved through the following technical solutions:

A kind of noise-eliminating device for air-blower, including fixed cylinder, blower is nested by flexible anti-vibration to be located in fixed cylinder to reduce wind Machine run when vibration generate noise, fixed cylinder inner blower air inlet and air outlet at be respectively equipped with air inlet Sound damping cover with Air outlet Sound damping cover is made an uproar with reducing the wind generated at the air inlet and air outlet of blower in fan operation.

Further, the flexible anti-vibration set is sheathed on the periphery of blower, is uniformly placed on the periphery of flexible anti-vibration set Several detent projections are preferably to carry out vibration damping to blower.

Further, flexible anti-vibration set periphery is equipped with annular slot, and fixed cylinder inner wall is equipped with and annular slot phase The latch of cooperation is secured the fan in fixed cylinder by the cooperation of annular slot and latch.

Further, the flexible anti-vibration set is rubber damping set or silica gel shock-reducing sleeve.

Further, the noise-eliminating device for air-blower further includes air inlet set, and air inlet is set in the end of fixed cylinder air inlet side On, and air inlet is put on equipped with several air inlet holes, air is inhaled into fixed cylinder by air inlet hole.

Further, the noise-eliminating device for air-blower further includes windband out, and windband inner hollow forms both ends perforation out, out windband One end formed outlet section, the other end formed socket part, windband is set in the end of fixed cylinder outlet air side by socket part out On, the air in fixed cylinder is blown out by outlet section.

Further, the noise-eliminating device for air-blower further includes muffler plate, and muffler plate is equipped with several exhaust vents, sets in socket part There is step surface, when socket part and fixed cylinder are socketed, muffler plate is pressed on the end of fixed cylinder by step surface, the sky in fixed cylinder Gas is entered in windband by exhaust vent and is blown out by outlet section.

Further, the air inlet Sound damping cover and air outlet Sound damping cover are in hollow cylindrical, and air inlet Sound damping cover and Air outlet Sound damping cover is mineral wool or sponge material Sound damping cover.

Noise-eliminating device for air-blower described in the utility model, has the advantages that

When blower works, the blade high speed rotation of blower generates negative pressure, and air passes through from the air inlet hole sucking of air inlet set Air inlet Sound damping cover enters blower, since air inlet Sound damping cover is mineral wool or sponge Sound damping cover with holes, can enter the wind blower The wind that mouthful place generates is made an uproar absorption, and when fan operation can generate vibration, passes through the setting flexible anti-vibration set between fixed cylinder and blower To reduce the noise of fan vibration generation, into blower air after the noise elimination of air outlet Sound damping cover from the outlet air on muffler plate Hole enters windband, then sprays from outlet section, noise is absorbed and reduce by generating three big sources of noise from blower, several In the case where not losing wind-force, so that noise is greatly reduced when blower works, and enters the wind and cover upper air inlet hole and disappear Exhaust vent on sound plate also has the function of micro silencer, the generation for reducing noise further.

Detailed description of the invention

Fig. 1 is the stereochemical structure decomposing schematic representation of the utility model embodiment.

Fig. 2 is the cross-sectional view of the utility model embodiment.

Label declaration:

1, fixed cylinder, 11, latch, 2, blower, 3, flexible anti-vibration set, 31, detent projection, 32, annular slot, 4, air inlet Sound damping cover, 5, air outlet Sound damping cover, 6, air inlet set, 61, air inlet hole, 7, go out windband, 71, outlet section, 72, socket part, 721, platform Terrace, 8, muffler plate, 81, exhaust vent.

Specific embodiment

The utility model is further described with reference to the accompanying drawings and embodiments.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

Please refer to attached drawing 1, attached drawing 2, in the utility model embodiment, a kind of noise-eliminating device for air-blower, including fixed cylinder 1, wind Machine 2 is embedded to reduce the noise that vibration generates when blower 2 is run in fixed cylinder 1, in fixed cylinder 1 by flexible anti-vibration set 3 Air inlet Sound damping cover 4 and air outlet Sound damping cover 5 are respectively equipped at the air inlet and air outlet of blower 2 with the drop when blower 2 is run The low wind generated at the air inlet and air outlet of blower 2 is made an uproar.The noise-eliminating device for air-blower of the present embodiment is applicable to cleaning machine Fan noise elimination reduces the running noises of cleaning machine.

Please refer to attached drawing 1, attached drawing 2, in the present embodiment, flexible anti-vibration set 3 is sheathed on the periphery of blower 2, flexible anti-vibration Several detent projections 31 are placed on the periphery of set 3 uniformly preferably to carry out vibration damping to blower 2.

Please refer to attached drawing 1, attached drawing 2, in the present embodiment, flexible anti-vibration covers 3 peripheries and is equipped with annular slot 32, fixed cylinder 1 Inner wall is equipped with the latch 11 matched with annular slot 32, by the cooperation of annular slot 32 and latch 11 that blower 2 is fixed In fixed cylinder 1.It will be understood by those skilled in the art that 1 inner wall of fixed cylinder can also be not provided with latch, such as circumferential in fixed cylinder 1 It is equipped with the through-hole of several annular arrangements, the banking pin matched by through-hole insertion with annular slot 32 is to realize blower 2 are embedded in fixed cylinder 1, are able to achieve in addition there are other structures and blower 2 is embedded in fixed cylinder 1, details are not described herein.

Please refer to attached drawing 1, attached drawing 2, in the present embodiment, flexible anti-vibration set 3 covers for rubber damping or silica gel shock-reducing sleeve, but not It is confined to this, can also be shock-reducing sleeve made of other flexible materials.

Please refer to attached drawing 1, attached drawing 2, in the present embodiment, noise-eliminating device for air-blower further includes air inlet set 6, and air inlet set 6 is set in Fixed cylinder 1 is entered the wind on the end of side, and is entered the wind set 6 and be equipped with several air inlet holes 61, and air is inhaled into solid by air inlet hole 61 In safety barrel 1.

Please refer to attached drawing 1, attached drawing 2, in the present embodiment, noise-eliminating device for air-blower further includes windband 7 out, out in 7 inside of windband Sky forms both ends perforation, and one end of windband 7 forms outlet section 71 out, and the other end forms socket part 72, and windband 7 passes through socket part out 72 are set on the end of 1 outlet air side of fixed cylinder, and the air in fixed cylinder 1 is blown out by outlet section 71.

Please refer to attached drawing 1, attached drawing 2, in the present embodiment, noise-eliminating device for air-blower further includes muffler plate 8, and muffler plate 8 is equipped with Several exhaust vents 81, socket part 72 is interior to be equipped with step surface 721, and when socket part 72 and fixed cylinder 1 are socketed, muffler plate 8 is by step surface 721 are pressed on the end of fixed cylinder 1, and the air in fixed cylinder 1 enters in windband 7 and by outlet section 71 by exhaust vent 81 Blowout.

Please refer to attached drawing 1, attached drawing 2, in the present embodiment, air inlet Sound damping cover 4 and air outlet Sound damping cover 5 are in hollow cylinder Shape, and air inlet Sound damping cover 4 and air outlet Sound damping cover 5 are mineral wool or sponge material Sound damping cover.

The noise that blower generates at work, mainly from three aspects: 1, blower itself vibrates the noise of generation, 2, The wind that the air inlet of blower generates is made an uproar, and 3, the wind that the outlet of blower generates makes an uproar.When blower 2 works, the blade high speed of blower 2 is revolved Turn, generate negative pressure, air is sucked from the air inlet hole 61 of air inlet set 6, enters blower 2 by air inlet Sound damping cover 4, due to air inlet Sound damping cover 4 is mineral wool or sponge Sound damping cover with holes, and can make an uproar the wind that 2 air inlet of blower generates absorption, when blower 2 is run Vibration can be generated, vibrates the noise generated by the way that flexible anti-vibration set 3 is arranged between fixed cylinder 1 and blower 2 to reduce blower 2, Air into blower 2 enters windband 7 from the exhaust vent 81 on muffler plate 8 after the noise elimination of air outlet Sound damping cover 5, then from out Wind portion 71 sprays.In the present embodiment, noise is absorbed and reduced by generating three big sources of noise from blower, is hardly being damaged In the case where power of going wrong, so that noise is greatly reduced when blower 2 works, and enters the wind the air inlet hole 61 on set 6 and eliminate the noise Exhaust vent 81 on plate 8 also has the function of micro silencer, the generation for reducing noise further.

The above, embodiment are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to before Embodiment is stated the utility model is described in detail, those skilled in the art should understand that: it still can be with It modifies to technical solution documented by previous embodiment, or some technical characteristics therein is equivalently replaced；And These modifications or substitutions do not make corresponding technical solution be detached from the spirit and scope of the utility model embodiment technical solution, because This every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this The protection scope of utility model.

Claims (8)

1. a kind of noise-eliminating device for air-blower, it is characterised in that: including fixed cylinder (1), blower (2) is embedded by flexible anti-vibration set (3) To reduce the noise that vibration generates when blower (2) are run in the fixed cylinder (1), fixed cylinder (1) inner blower (2) air inlet with Air inlet Sound damping cover (4) and air outlet Sound damping cover (5) are respectively equipped at air outlet to reduce when blower (2) are run in blower (2) wind generated at air inlet and air outlet is made an uproar.

2. noise-eliminating device for air-blower according to claim 1, it is characterised in that: the flexible anti-vibration set (3) is sheathed on blower (2) on periphery, several detent projections (31) are uniformly placed on the periphery of flexible anti-vibration set (3) preferably to blower (2) vibration damping is carried out.

3. noise-eliminating device for air-blower according to claim 2, it is characterised in that: flexible anti-vibration set (3) periphery is equipped with Annular slot (32), fixed cylinder (1) inner wall are equipped with the latch (11) matched with annular slot (32), pass through annular slot (32) blower (2) is fixed in fixed cylinder (1) with the cooperation of latch (11).

4. noise-eliminating device for air-blower according to any one of claims 1 to 3, it is characterised in that: the flexible anti-vibration set (3) is rubber Glue shock-reducing sleeve or silica gel shock-reducing sleeve.

5. noise-eliminating device for air-blower according to claim 4, it is characterised in that: the noise-eliminating device for air-blower further includes air inlet set (6), air inlet set (6) is set on the end of fixed cylinder (1) air inlet side, and is entered the wind set (6) and be equipped with several air inlet holes (61), Air is inhaled into fixed cylinder (1) by air inlet hole (61).

6. noise-eliminating device for air-blower according to claim 4, it is characterised in that: the noise-eliminating device for air-blower further includes windband out (7), windband (7) inner hollow forms both ends perforation out, and one end of windband (7) forms outlet section (71) out, and the other end forms set Socket part (72), windband (7) is set on the end of fixed cylinder (1) outlet air side by socket part (72) out, in fixed cylinder (1) Air is blown out by outlet section (71).

7. noise-eliminating device for air-blower according to claim 6, it is characterised in that: the noise-eliminating device for air-blower further includes muffler plate (8), muffler plate (8) is equipped with several exhaust vents (81), is equipped with step surface (721) in socket part (72), socket part (72) and solid When safety barrel (1) is socketed, muffler plate (8) is pressed on the end of fixed cylinder (1) by step surface (721), the air in fixed cylinder (1) Entered in windband (7) by exhaust vent (81) and is blown out by outlet section (71).

8. noise-eliminating device for air-blower according to claim 4, it is characterised in that: the air inlet Sound damping cover (4) and air outlet Sound damping cover (5) is in hollow cylindrical, and air inlet Sound damping cover (4) and air outlet Sound damping cover (5) are mineral wool or sponge material Matter Sound damping cover.