CN105587946B - Noise elimination pipeline and sweeping machine - Google Patents
Noise elimination pipeline and sweeping machine Download PDFInfo
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- CN105587946B CN105587946B CN201510338625.3A CN201510338625A CN105587946B CN 105587946 B CN105587946 B CN 105587946B CN 201510338625 A CN201510338625 A CN 201510338625A CN 105587946 B CN105587946 B CN 105587946B
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- Prior art keywords
- noise elimination
- elimination pipeline
- silencing plate
- noise
- layer
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/21—Rigid pipes made of sound-absorbing materials or with sound-absorbing structure
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/26—Hoses, i.e. flexible pipes made of sound-absorbing materials or with sound-absorbing structure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of noise elimination pipeline and sweeping machines.The noise elimination pipeline includes multiple tube layer, the multiple tube layer includes supporting layer, silencing plate and sound insulating layer, the supporting layer is set to the most inner side of the multiple tube layer, and the silencing plate is supported in the supporting layer periphery, and the sound insulating layer is arranged in the periphery of the silencing plate.Noise elimination pipeline according to the present invention, due to the setting of supporting layer, it is ensured that the intensity of noise elimination pipeline has stronger anti-static pressure ability；Due to the setting of silencing plate, which can efficiently reduce the noise of the fluid flowing path using the noise elimination pipeline；Due to the setting of sound insulating layer, noise leakage can be generated at noise elimination pipeline to avoid fluid flowing path, and silencing plate can be protected from external environmental.The noise elimination pipeline can effectively prevent fan noise from generating leakage at connecting pipe as the connecting pipe of sweeping machine, and effectively reduce the noise level of air-transport system and sweeping machine vehicle.
Description
Technical field
The present invention relates to environmental sanitation mechanical field, more particularly to a kind of noise elimination pipeline and sweeping machine.
Background technology
In environmental sanitation mechanical field, sweeping machine is widely various regions with the diversification of the high efficiency of its cleaning works and function
The services such as city, highway.But noise problem when sweeping machine operation is also increasingly subject to the concern of people.
One of Main Noise Sources when fan noise is sweeping machine work, are the interactions such as aerodynamic noise, mechanical noise
It generates.Fan outlet noise sequentially enters air duct part, connecting pipe, sucker etc., is easily produced in above-mentioned parts or junction
Raw leakage, if to fan noise noise pollution will be caused to ambient enviroment without processing.
In order to reduce fan noise, avoid the problem that noise leakage occurs, need to the parts of air-transport system into
Row, which disappears to insulate against sound, to be designed, and the total noise of centrifuge of sweeping machine is reduced.
In the prior art, sweeping machine is usually using following two connecting pipes：One is rubber tubing, rubber tubing is not easy
It is damaged and have certain sound insulation property；Another kind is flexible plastic tube, and more common is flexiplast bellows.
In the implementation of the present invention, inventor has found that the above prior art has following shortcoming：Two kinds of connections
Although pipeline has certain sound insulation effect, it can be difficult to effectively fan noise is prevented to generate leakage at connecting pipe, no
The noise level of air-transport system and vehicle, especially flexiplast bellows can be effectively reduced to be easy in sweeping machine operation
Damaged and sound insulation property is poor.
Invention content
The purpose of the present invention is to provide a kind of noise elimination pipeline and sweeping machine, which can ensure have relatively by force
Anti- static pressure ability on the basis of efficiently reduce the noise of fluid flowing path using the noise elimination pipeline.
First aspect present invention provides a kind of noise elimination pipeline, and the noise elimination pipeline includes multiple tube layer, the multiple tube layer
Supporting layer, silencing plate and sound insulating layer, the supporting layer are set to the most inner side of the multiple tube layer, and the silencing plate is supported in institute
Supporting layer periphery is stated, the sound insulating layer is arranged in the periphery of the silencing plate.
Further, the supporting layer is equipped with engraved structure.
Further, the engraved structure includes for transmitting the flow noise in the noise elimination pipeline to the silencing plate
Multiple openings.
Further, the engraved structure further includes micro- being worn for reducing the multiple of the flow noise in the noise elimination pipeline
Hole.
Further, the shape of at least two openings is different in the multiple opening；And/or in the multiple opening extremely
Few two openings it is of different sizes.
Further, the multiple opening includes at least one set strip gab, in strip gab described in every group each bar shaped open
Mouth is evenly arranged in around the axis of the noise elimination pipeline on the supporting layer, each strip gab in strip gab described in every group
Shapes and sizes are identical and length direction along the noise elimination pipeline axially along stretching.
Further, the silencing plate includes the sublayer that absorbs sound made of sound-absorbing material.
Further, the silencing plate further includes the water proof and dust proof being set between the sound absorption sublayer and the supporting layer
Sublayer.
Further, the noise elimination pipeline further includes the first fastener being removably disposed in outside the silencing plate,
The first fastener is for tightening together the silencing plate and each tube layer inside the silencing plate.
Further, the multiple tube layer further includes inner liner, wherein the inner liner is set to the outer of the silencing plate
Between the inner circumferential of all and described sound insulating layer or the inner liner is set between the supporting layer and the silencing plate.
Further, the noise elimination pipeline further includes the second fastener being removably disposed in outside the sound insulating layer,
The second fastener is for tightening together the sound insulating layer and each tube layer inside the sound insulating layer.
Second aspect of the present invention provides a kind of sweeping machine, including sucker and the connecting pipe that is connected on the sucker,
In, the connecting pipe is the noise elimination pipeline described in any one of first aspect present invention.
Based on noise elimination pipeline provided by the invention and sweeping machine, noise elimination pipeline includes multiple tube layer, and multiple tube layer include more
A tube layer, the multiple tube layer include supporting layer, silencing plate and sound insulating layer, and the supporting layer is set to the multiple tube layer most
Inside, the silencing plate are supported in the supporting layer periphery, and the sound insulating layer is arranged in the periphery of the silencing plate.Due to support
The setting of layer, it is ensured that the intensity of noise elimination pipeline has stronger anti-static pressure ability；Due to the setting of silencing plate, the noise elimination
Pipeline can efficiently reduce the noise of the fluid flowing path using the noise elimination pipeline；It, can be to avoid stream due to the setting of sound insulating layer
Body flow path generates noise leakage at noise elimination pipeline, and silencing plate can be protected to be protected from external environmental.The hush tube
Road can effectively prevent fan noise from generating leakage at connecting pipe as the connecting pipe of sweeping machine, and effectively reduce gas
The noise level of power transport system and sweeping machine vehicle.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the schematic cross-sectional view of the noise elimination pipeline of the preferred embodiment of the present invention.
Fig. 2 is the structural schematic diagram of the supporting layer of the noise elimination pipeline of embodiment illustrated in fig. 1.
Fig. 3 is the structural schematic diagram of the silencing plate and adhesive tape of the noise elimination pipeline of embodiment illustrated in fig. 1.
Fig. 4 is the structural schematic diagram of the inner liner of the noise elimination pipeline of embodiment illustrated in fig. 1.
Fig. 5 is the structural schematic diagram of the sound insulating layer and Belt with clasp assembly of the noise elimination pipeline of embodiment illustrated in fig. 1.
Fig. 6 is the structural schematic diagram of the sweeping machine of the noise elimination pipeline with the preferred embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, attached each portion shown in the drawings
The size divided not is to be drawn according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part for book.In shown here and discussion all examples, any occurrence should be construed as merely illustrative, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：Similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It need not be further discussed in figure.
The noise elimination pipeline 100 of the embodiment of the present invention is described in detail below with reference to Fig. 1 to Fig. 5.
Fig. 1 is the schematic cross-sectional view of the noise elimination pipeline 100 of the preferred embodiment of the present invention.As shown in Figure 1, the present embodiment
Noise elimination pipeline 100 include multiple tube layer, multiple tube layer mainly include supporting layer 110, silencing plate 120, inner liner 130 and sound insulation
Layer 140.In addition, the noise elimination pipeline 100 further includes first fastener and second fastener.
Fig. 2 is the structural schematic diagram of the supporting layer 110 of the noise elimination pipeline 100 of embodiment illustrated in fig. 1.Such as Fig. 1 and Fig. 2 institutes
Show, supporting layer 110 is located at the most inner side of multiple tube layer of noise elimination pipeline 100.Silencing plate 120 is supported in the periphery of supporting layer 110.
Supporting layer 110 plays support and sizing to hush tube road 100.
Due to the setting of supporting layer 110, it is ensured that the intensity of noise elimination pipeline 100 makes noise elimination pipeline 100 have stronger
Anti- static pressure ability；Due to the setting of silencing plate 120, which can efficiently reduce using the noise elimination pipeline 100
The noise of fluid flowing path.The noise elimination pipeline 100 is suitable for requiring certain anti-static pressure ability and needs the pipeline of noise elimination function
In, it is for example adapted for applying the connecting pipe as sucker on sweeping machine to use.
As depicted in figs. 1 and 2, it is preferable that supporting layer 110 is equipped with engraved structure.Since supporting layer 110 is equipped with hollow out
Structure, therefore, the noise inside noise elimination pipeline 100 can be transferred to the noise elimination being set to outside supporting layer 110 via supporting layer 110
Layer 120 makes silencing plate 120 more fully hereinafter play the function of noise elimination noise reduction, reduces the transmission of noise downstream.
Wherein, engraved structure includes mainly being opened for transmitting the multiple of flow noise in noise elimination pipeline to silencing plate 120
Mouth 111.Preferably, engraved structure can also include multiple micropunch 112 for reducing the flow noise in noise elimination pipeline.It engraves
The diameter of each micropunch 112 is preferably 2mm or less in multiple micropunch 112 of hollow structure.
Preferably, the single opening area being respectively open in multiple openings 111 is more than 25mm2.Additionally preferably, multiple openings
111 total opening area accounts for the 40%~90% of the internal total surface area of noise elimination pipeline 100.
Defined above to the total opening area progress of multiple openings 111, the intensity that can preferably take into account supporting layer 110 is wanted
It asks, noise delivery request and noise attentuation requirement.
As depicted in figs. 1 and 2, multiple openings 111 include at least one set of strip gab, in every group of strip gab each bar shaped open
Mouthful be evenly arranged on supporting layer 110 around the axis of noise elimination pipeline 100, in every group of strip gab the shape of each strip gab and
Size is identical, and length direction along noise elimination pipeline 100 axially along stretching.
By opening shape be set as strip gab can preferably take into account supporting layer 110 intensity requirement and noise transmission want
It asks.
Preferably, the shape of at least two openings is different in multiple openings 111 of engraved structure；And/or multiple openings
At least two openings is of different sizes in 111.For example, at least one set of strip gab of noise elimination pipeline 100 includes axially offsetting
First group of strip gab and second group of strip gab, the width of strip gab is opened less than second group of bar shaped in first group of strip gab
The quantity of the width of strip gab and strip gab in first group of strip gab is more than item in second group of strip gab and opens out in mouthful
The quantity of mouth.
Using openings of sizes or variform multiple openings, be conducive to ensureing that the while of supporting stiffness layer increases as possible
The gross area of opening.
It should be noted that multiple openings or the other shapes such as circle, ellipse, polygon；In addition, though this
The arrangement mode of multiple openings is regular in embodiment, but in other embodiments, and the arrangement mode of multiple openings can also
It is random, can be used as long as not breaking the arrangement mode of the intensity of ring supporting layer 110.Supporting layer 110 can be by more high-strength
The metal or plastics global formation of degree.In the present embodiment, supporting layer 110 is made of the stainless steel tube of 3mm thickness, on stainless steel tube
Engraved structure include multiple openings 111 and multiple micropunch 112,111 points of multiple openings for axially spaced-apart two groups of sizes and
The different strip gab of quantity.
Fig. 3 is the silencing plate 120 and adhesive tape 150 of the noise elimination pipeline 100 of embodiment illustrated in fig. 1 (as first fastener)
Structural schematic diagram.
As shown in figures 1 and 3, in the present embodiment, silencing plate 120 includes water proof and dust proof sublayer 121 and sound absorption sublayer 122.
Sound absorption sublayer 122 is made of sound-absorbing material, and sound-absorbing material is preferably the strong acoustical cotton or sound-absorbing fabric of sound absorbing performance.
Sound absorption sublayer 122 interacts with noise, has the function to noise elimination noise reduction.
Water proof and dust proof sublayer 121 is set between sound absorption sublayer 122 and supporting layer 110, plays the role of waterproof and dustproof, is prevented
Only sound absorption sublayer 122 is destroyed.Preferably, water proof and dust proof sublayer 121 does not influence or the transmission of little effect noise, with will not
The excessive noise that influences interacts with sound absorption sublayer 122.The aluminium of low sound insulation property may be used in water proof and dust proof sublayer 121
The materials such as foil, skinning are made.In the present embodiment, water proof and dust proof sublayer 121 and sound absorption sublayer 122 are made as integral structure.
First fastener is removably disposed in outside silencing plate 120, for by silencing plate 120 and positioned at silencing plate 120
Internal tube layer tightens together.
Dismountable first fastener, which is arranged, can enable silencing plate 120 equal in silencing plate 120 with supporting layer 110
The tube layer in portion is conveniently fixed in together, and can be conveniently separated, consequently facilitating other tube layer of silencing plate 120 and its inside
Maintenance and maintenance.
As shown in figure 3, first fastener is adhesive tape 150 in the present embodiment.Adhesive tape 150 may be used elastic bands etc. its
The releasable securing apparatus of its form substitutes.
In the present embodiment, it is preferable that silencing plate 120 it is unassembled before on supporting layer 110 be rectangle lamella, assembling
When noise elimination pipeline 100, rectangle lamella is closely wrapped on supporting layer 110, forms the silencing plate 120 of tubular, then is passed through
Adhesive tape 150 is fixed on supporting layer 110.
The silencing plate 120 of the present embodiment selects the 3D polyester fiber sound-absorbing fabrics of the thickness about 20mm with aluminium foil facing, group
When filling noise elimination pipeline 100, using aluminium foil facing as water proof and dust proof layer 121,3D polyester fibers sound-absorbing fabric is as sound absorbing layer 122.
The silencing plate 120 has high sound absorption qualities, water proof and dust proof and good long term stability.
Fig. 4 is the structural schematic diagram of the inner liner 130 of the noise elimination pipeline 100 of embodiment illustrated in fig. 1.
As shown in Figure 1 and Figure 4, in the present embodiment, inner liner 130 is set to periphery and the sound insulating layer 140 of silencing plate 120
Between inner circumferential.Inner liner 130 is used to ensure the air-tightness of noise elimination pipeline 100.
Inner liner 130 is made preferably by the good thin woven fabric of air-tightness or flexiplast.In the present embodiment, airtight layer choosing
Plastic sheath is made with the high-quality plastics film of 1mm thickness.In assembling noise elimination pipeline 100, after fixing silencing plate 120, directly will
Plastic sheath is sleeved on the periphery of silencing plate 120.The inner liner 130 has the advantages that air-tightness is good, not cracky.
In a unshowned embodiment, inner liner can also be set between supporting layer and silencing plate.Wherein, airtight
Layer and silencing plate, supporting layer can be separate structures, can also make into a single integrated structure.
Fig. 5 is that the sound insulating layer 140 of the noise elimination pipeline 100 of embodiment illustrated in fig. 1 and Belt with clasp assembly 160 (are fastened as second
Device) structural schematic diagram.
The silencing plate 120 that package protection noise elimination pipeline 100 is played in the periphery of silencing plate 120, gas is arranged in sound insulating layer 140
The effect of close layer 130 and play the role of reduce noise leakage.Sound insulating layer 140 can be to avoid fluid flowing path in noise elimination pipeline
Noise leakage is generated at 100, and silencing plate 120 can be protected to be protected from external environmental.
Sound insulating layer 140 is made of sound insulating material.Preferably, sound insulating layer 150 is using the flexible material with high sound insulation property
Material is made, such as may be used and be made with certain thickness rubber material.In the present embodiment, sound insulating layer 150 selects wall thickness
The about gum sleeve of 8mm is made.
Second fastener is removably disposed in outside sound insulating layer 140, and second fastener is used for sound insulating layer 140 and position
Tube layer inside sound insulating layer 140 tightens together.
Dismountable second fastener is set, sound insulating layer 140 and supporting layer 110, silencing plate 120 and airtight can be enable
130 these tube layer being located inside sound insulating layer 140 of layer are fixed together, and can be conveniently separated, be convenient for sound insulating layer 140 and its
The maintenance and maintenance of internal other tube layer.It is especially used cooperatively with first fastener, can easily disassemble silencing plate
120, to solve the defect that sound-absorbing material is declined using rear performance for a long time during care and maintenance, extend noise elimination pipeline
100 service life.
As shown in Figure 1 and Figure 5, in the present embodiment, second fastener is Belt with clasp assembly 160.Belt with clasp assembly 160 is preferably
It is made of rubber material.Belt with clasp assembly 160 is set on sound insulating layer 140, and is integrally machined and is made with sound insulating layer 140.Buckle group
Part 160 includes connect band 161 and buckle 162.Connect band 161 and buckle 162 are respectively arranged in an axial direction same of sound insulating layer 140
At height, but different location is in circumferential direction.Need fastening when, will connect band 161 be inserted into buckle 162 in mix up it is elastic after be buckled in
Together.
Belt with clasp assembly 160 or other forms, such as waistband form can be made, the Belt with clasp assembly of waistband form can
To link together with sound insulating layer 140, can also independently be arranged with sound insulating layer 140.
In other embodiments, Belt with clasp assembly 160 can also use the releasable securing apparatus of the other forms such as pipe clamp
It replaces.
In the present embodiment, when needing replacing or safeguarding silencing plate 120, it is only necessary to unload noise elimination pipeline 100, open buckle
Component 160 unloads sound insulating layer 140, then opens adhesive tape 150, so that it may easily to unload silencing plate 120, the sound absorption to silencing plate 120
Sublayer 122 carries out maintaining.
Fig. 6 is the structural schematic diagram of the sweeping machine of the noise elimination pipeline 100 with the preferred embodiment of the present invention.As shown in fig. 6,
Sweeping machine provided in this embodiment includes sucker 200 and the connecting pipe that is connect with sucker 200, wherein connecting pipe is aforementioned
Noise elimination pipeline 100.
The noise elimination pipeline 100 is mainly effectively dropped because the noise elimination of silencing plate 120 acts on as the connecting pipe of sweeping machine
The noise of low fan outlet, prevent fan noise generates leakage at connecting pipe, thus effectively reduction air-transport system and
The noise level of sweeping machine vehicle.
From the above description, it can be seen that above example of the present invention has the following advantages that：
1, the structure design of noise elimination pipeline makes it that can efficiently reduce on the basis of with stronger anti-static pressure ability to answer
With the noise of the fluid flowing path of the noise elimination pipeline, the connecting pipe be especially suitable for sweeping machine.
2, the noise of fan outlet can be effectively reduced using the noise elimination pipeline in sweeping machine, prevents fan noise even
Leakage is generated at take over road, to effectively reduce the noise level of air-transport system and sweeping machine vehicle.
3, the noise elimination pipeline can make silencing plate from the pollution of external environment using sound insulating layer, and silencing plate is provided with waterproof
Dust-proof sublayer can make the sound absorption sublayer of silencing plate from the influence of the moisture and grit carried secretly in noise elimination pipeline internal flow,
And easy cleaning, thus have the advantages that water proof and dust proof.
4, the noise elimination pipeline uses dismountable structure design, it may be convenient to which the tube layer such as silencing plate are disassembled progress
Maintaining can solve the problems, such as that the sound-absorbing material of sound absorption sublayer in silencing plate is declined using rear performance for a long time.
5, the processing of the noise elimination pipeline is simple, easy to maintain, extends the service life of noise elimination pipeline, reduces production
The use cost of product.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
It can modify to the specific implementation mode of the present invention or equivalent replacement is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (11)
1. a kind of noise elimination pipeline, which is characterized in that the noise elimination pipeline includes multiple tube layer, and the multiple tube layer includes supporting layer
(110), silencing plate (120) and sound insulating layer (140), the supporting layer (110) is set to the most inner side of the multiple tube layer, described
Silencing plate (120) is supported in the supporting layer (110) periphery, and sound insulating layer (140) setting is in the outer of the silencing plate (120)
Week；The supporting layer (110) is equipped with engraved structure；The multiple tube layer further includes inner liner (130).
2. noise elimination pipeline according to claim 1, which is characterized in that the engraved structure includes for the silencing plate
(120) multiple openings (111) of the flow noise in the noise elimination pipeline are transmitted.
3. noise elimination pipeline according to claim 2, which is characterized in that the engraved structure further includes disappearing for reducing described
Multiple micropunch (112) of flow noise in sound pipe road.
4. noise elimination pipeline according to claim 2, which is characterized in that at least two opening in the multiple opening (111)
Shape it is different；And/or it is the multiple opening (111) at least two opening it is of different sizes.
5. noise elimination pipeline according to claim 2, which is characterized in that the multiple opening includes that at least one set of bar shaped is opened
Mouthful, each strip gab is evenly arranged in the supporting layer around the axis of the noise elimination pipeline in strip gab described in every group
(110) on, the shapes and sizes of each strip gab are identical in strip gab described in every group and length direction is along the noise elimination pipeline
It is axially extending.
6. noise elimination pipeline according to claim 1, which is characterized in that the silencing plate (120) includes by sound-absorbing material system
At sound absorption sublayer (122).
7. noise elimination pipeline according to claim 6, which is characterized in that the silencing plate (120) further include be set to it is described
Water proof and dust proof sublayer (121) between the sublayer that absorbs sound (122) and the supporting layer (110).
8. noise elimination pipeline according to any one of claim 1 to 7, which is characterized in that the noise elimination pipeline further includes can
The first fastener outside in the silencing plate (120) is releasably set, and the first fastener is used for the silencing plate
(120) and positioned at the internal each tube layer of the silencing plate (120) it tightens together.
9. the noise elimination pipeline according to any one of claim 2 to 7, which is characterized in that wherein, the inner liner (130)
It is set between the periphery of the silencing plate (120) and the inner circumferential of the sound insulating layer (140)；Or the inner liner is set to institute
It states between supporting layer and the silencing plate.
10. noise elimination pipeline according to any one of claim 1 to 7, which is characterized in that the noise elimination pipeline further includes can
The second fastener outside in the sound insulating layer (140) is releasably set, and the second fastener is used for the sound insulating layer
(140) and positioned at the internal each tube layer of the sound insulating layer (140) it tightens together.
11. a kind of sweeping machine, including sucker (200) and the connecting pipe that is connected on the sucker (200), which is characterized in that
The connecting pipe is the noise elimination pipeline according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510338625.3A CN105587946B (en) | 2015-06-17 | 2015-06-17 | Noise elimination pipeline and sweeping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510338625.3A CN105587946B (en) | 2015-06-17 | 2015-06-17 | Noise elimination pipeline and sweeping machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105587946A CN105587946A (en) | 2016-05-18 |
| CN105587946B true CN105587946B (en) | 2018-10-16 |
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| CN201510338625.3A Active CN105587946B (en) | 2015-06-17 | 2015-06-17 | Noise elimination pipeline and sweeping machine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107288084B (en) * | 2017-06-16 | 2018-09-21 | 宁波大叶园林设备股份有限公司 | With combining, preceding air duct sound absorption is eliminated the noise and what rear air duct multitube was eliminated the noise blows leaf machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2291447Y (en) * | 1997-04-04 | 1998-09-16 | 秦琪 | Dust-absorbing type road cleaning vehicle |
| CN2462210Y (en) * | 2000-11-14 | 2001-11-28 | 赵崇久 | Pipeline silencer |
| KR101198673B1 (en) * | 2009-11-26 | 2012-11-12 | 현대자동차주식회사 | Plastic-intercooler pipe of noising having multi-layer |
| CN202691431U (en) * | 2012-03-31 | 2013-01-23 | 李力 | Vibration-isolation and noise-elimination box for pump pipelines |
| CN204805762U (en) * | 2015-06-17 | 2015-11-25 | 徐工集团工程机械股份有限公司 | Noise elimination pipeline and sweeping machine |
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2015
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| CN105587946A (en) | 2016-05-18 |
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