CN205936745U - Special muffler of filter - Google Patents

Abstract

The utility model discloses a special muffler of filter, including apron, iron bowl, sponge and shell, the shell is approximate cylindric and the bottom is outside protruding just regional with hollow lid form of sponge lower extreme shape of face one -tenth, the sponge is filled has a regular column recess in shell inside and center, the iron bowl coincide with the groove phase at sponge center, the iron bowl is U -shaped curved surface and its the upper portion outer lane ring piece apron around the barrel, the apron is extended by central syncline top all around and meshes mutually with the ring interface on shell top. The utility model discloses good noise cancelling effect is good for the leakproofness, and simple structure and nothing are hung and is flowed, no burr, and the appearance is pleasing to the eye.

Description

A kind of special deafener of cleaner

Technical field

This utility model is related to a kind of cleaner accessory, the special deafener of specially a kind of cleaner.

Background technology

Automotive muffler is mainly used in the noise that produces during the electromotor work reducing motor vehicles, be hinder sound transmission and Allow that air-flow passes through, preventing and treating air flow power noise special equipment.Current is that the environment that suppression high pressure draught discharge causes is made an uproar Sound, has had the acoustic filter of multiple patterns in the world, mostly adopts impedance composite noise-cancelling theory.The sound that cleaner filters comes It is water pump, the sound filtering itself from several aspects one；Two is the sound of current；Three is the sound of vibrations, and this is cleaner Deafener just can play very big effect.

Deafener on the market because complex structure, weight are big, high-temperature oxydation sound absorption filler, fill out by high velocity air impact sound absorption Material, the aqueous vapor infiltration sound absorption reason such as filler, cause acoustic filter maintenance frequently, soundproof effect poor, situations such as usage cycles are short, always It is the subject matter that mobile muffler faces, and deafener has certain resistance, lead to transport if unreasonable structure Capable smooth it is likely that the work efficiency of impact cleaner.

For solving the above problems, therefore it is proposed that a kind of special deafener of cleaner.

Utility model content

The technical problems to be solved in the utility model is the defect overcoming prior art, provides a kind of cleaner special noise reduction Device.

In order to solve above-mentioned technical problem, this utility model provides following technical scheme：

A kind of special deafener of cleaner of this utility model, including cover plate, ferrum bowl, sponge and shell, described shell is approximate Cylindric and bottom outwardly convex and form a hollow lid region with sponge lower surface, described sponge is filled in inside the shell There are regular cylindrical recesses at Bu Qie center, and described ferrum bowl is matched with the groove at sponge center, described ferrum bowl be U-shaped curved surface and Its top outer ring is extended by center and the annular with housing top end obliquely upward around the ring block cover plate of barrel shape, described cover plate surrounding Interface is meshed.

Further, described cover plate is spliced by barrel-shaped ring block plate and plane conduplicatio plate, barrel-shaped ring block plate laminating sponge The side wall of groove is extended downwardly and is fastened togather with ferrum bowl lower surface, plane conduplicatio plate inner ring vertically upward turnup, outer ring to After lower bending, horizontal stretching forms the raised annulus of a circle, and plane conduplicatio plate surrounding is uniformly distributed octagonal through hole, through hole The center of circle in same center circle, described cover plate adopt electrogalvanising Steel material.

Further, described shell is made using cold-rolled steel sheet.

The beneficial effect that this utility model is reached is：By arranging ferrum bowl and sponge so that when sound wave enters acoustic filter, A part of acoustic energy is absorbed by the sponge another part, and roundtrip reaches the effect that consumed energy reduces noise, structure letter in the lumen Singly there is good sealing, and sound-absorbing effect is good, using the material of electrogalvanising steel and cold-rolled steel sheet, crimping bending part no hair Thorn, no cracking, no thinning, corrosion resistance, adhesive force are strong, the uniform long service life of coating, thickness accurately, no hang stream, no Fructus Citri tangerinae stricture of vagina, No bottom drain, the no defect such as pit, appearance looks elegant.

Brief description

Accompanying drawing is used for providing further understanding to of the present utility model, and constitutes a part for description, with this practicality New embodiment is used for explaining this utility model together, does not constitute to restriction of the present utility model.In the accompanying drawings：

Fig. 1 is a kind of overall structure diagram of the special deafener of cleaner of this utility model；

Fig. 2 is a kind of cross-sectional view of the special deafener of cleaner of this utility model；

Fig. 3 is a kind of overall structure top view of the special deafener of cleaner of this utility model；

In figure：1st, cover plate；2nd, ferrum bowl；3rd, sponge；4th, shell.

Specific embodiment

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is illustrated it will be appreciated that described herein excellent Select embodiment to be merely to illustrate and explain this utility model, be not used to limit this utility model.

Embodiment 1

As Figure 1-3, the special deafener of a kind of cleaner, including cover plate 1, ferrum bowl 2, sponge 3 and shell 4, described outer Shell 4 is approximately cylindric and bottom outwardly convex and form a hollow lid region with sponge 3 lower surface, and described sponge 3 is filled out Fill in shell 4 inside and there are regular cylindrical recesses at center, described ferrum bowl 2 is matched with the groove at sponge 3 center, described ferrum Bowl 2 is U-shaped curved surface and the ring block cover plate 1 of its top outer ring cincture barrel shape, and described cover plate 1 surrounding is extended simultaneously obliquely upward by center It is meshed with the ring interface on shell 4 top.

Described cover plate 1 is spliced by barrel-shaped ring block plate and plane conduplicatio plate, the side of barrel-shaped ring block plate laminating sponge 3 groove Wall is extended downwardly and is fastened togather with ferrum bowl 2 lower surface, and plane conduplicatio plate inner ring is after turnup, outer ring are bent downwardly vertically upward Horizontal stretching forms the raised annulus of a circle, and plane conduplicatio plate surrounding is uniformly distributed octagonal through hole, and the center of circle of through hole exists In same center circle, described cover plate 1 adopts electrogalvanising Steel material, is easy to uniform sound-absorbing noise reduction, crimping bending part simultaneously Impulse- free robustness, no cracking, no thinning, corrosion resistance, adhesive force are strong, the uniform long service life of coating, and described shell 4 uses cold-rolled steel Plate is made, and thickness is accurate, surface aesthetic, no bottom drain, no pit, the no defect such as extension stream.

It should be noted that：When using this kind of cleaner special deafener, sponge 3 material using porous sound absorption drops Low noise, is fixed on sponge 3 material of sound absorption on the inwall of gas channel or arranges in the duct according to certain way, work as sound When ripple enters acoustic filter, a part of acoustic energy rubs in the hole of mandruka 3 material and changes into thermal energy consumption and dissipate, and makes to pass through The sound wave of acoustic filter weakens, another part can not by the sound wave of sponge 3 material mesh in the cell of ferrum bowl 2 roundtrip, The noise of some frequency contents just can be filtered, thus reaching the purpose of noise elimination.Acoustic filter just looks like pure resistance electricity electrically Road, sound-absorbing material is similar to resistance.Dissipative muffler is good to medium-high frequency soundproof effect, poor to low frequency soundproof effect.

Finally it should be noted that：The foregoing is only preferred embodiment of the present utility model, be not limited to this Utility model, although being described in detail to this utility model with reference to the foregoing embodiments, for those skilled in the art For, it still can be modified to the technical scheme described in foregoing embodiments, or to wherein some technical characteristics Carry out equivalent.All of the present utility model spirit and principle within, any modification, equivalent substitution and improvement made etc., all Should be included within protection domain of the present utility model.

Claims (3)

1. the special deafener of a kind of cleaner, including cover plate（1）, ferrum bowl（2）, sponge（3）And shell（4）It is characterised in that institute State shell（4）Approximately cylindric and bottom outwardly convex and and sponge（3）Lower surface forms a hollow lid region, described Sponge（3）It is filled in shell（4）Internal and there are regular cylindrical recesses, described ferrum bowl in center（2）With sponge（3）Center recessed Groove matches, described ferrum bowl（2）Ring block cover plate for U-shaped curved surface and its top outer ring cincture barrel shape（1）, described cover plate（1）Four Zhou You center extends and and shell obliquely upward（4）The ring interface on top is meshed.

2. the special deafener of a kind of cleaner according to claim 1 is it is characterised in that described cover plate（1）By barrel-shaped ring Block plate and plane conduplicatio plate are spliced, barrel-shaped ring block plate laminating sponge（3）The side wall of groove extend downwardly and with ferrum bowl（2）Under End face is fastened togather, and turnup, outer ring are bent downwardly rear horizontal stretching and form a circle projection plane conduplicatio plate inner ring vertically upward Annulus, plane conduplicatio plate surrounding is uniformly distributed octagonal through hole, the center of circle of through hole in same center circle, described lid Plate（1）Using electrogalvanising Steel material.

3. the special deafener of a kind of cleaner according to claim 1 is it is characterised in that described shell（4）Using cold rolling Steel plate is made.