CN106246292A - A kind of deafener and roof-bolter - Google Patents
A kind of deafener and roof-bolter Download PDFInfo
- Publication number
- CN106246292A CN106246292A CN201610766389.XA CN201610766389A CN106246292A CN 106246292 A CN106246292 A CN 106246292A CN 201610766389 A CN201610766389 A CN 201610766389A CN 106246292 A CN106246292 A CN 106246292A
- Authority
- CN
- China
- Prior art keywords
- housing
- deafener
- noise reduction
- bolter
- roof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007787 solid Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 206010014020 Ear pain Diseases 0.000 description 1
- 241000168254 Siro Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/083—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using transversal baffles defining a tortuous path for the gases or successively throttling gas flow
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Exhaust Silencers (AREA)
Abstract
The present invention relates to a kind of deafener and roof-bolter, roof-bolter includes body, body has gas outlet, roof-bolter also includes the deafener connected with gas outlet, deafener includes the first housing and the second housing, first housing and the second housing are mutually combined to form a closing box with inner cavity chamber, deafener also includes through the first housing or the second housing and stretches into the breather described closing box, breather is positioned at one end of closing box and is provided with noise reduction mouth and is connected with closing box inner cavity chamber by noise reduction mouth, closes and is additionally provided with air vent on box.Use deafener and the roof-bolter of the present invention, the second housing of deafener and the first housing split to arrange and removable, cleaning can be easy to open when internal vent ports is blocked by impurity, extend the deafener life-span.Further, increasing labyrinth baffle and carry out noise reduction on the basis of original bloop, erasure effect is more preferable, and overall structure is simple, facilitates installing/dismounting.
Description
Technical field
The present invention relates to a kind of deafener and roof-bolter.
Background technology
Underground coal mine driving face is during production and construction, and top anchor, the construction of anchor cable all use roof-bolter to construct, but
Roof-bolter noise in underground work is very big, and through measuring, the roof-bolter noise when underground work is up to 110 decibels, and 50-90
Decibel can hinder sleep, sad, anxiety, and 90-130 decibel meeting ear is itched, ear pain, and 110 decibels of noise pollution can be to length
Phase causes high risks at the health of the mine workman that work surface works.
Authorization Notice No. is that the Chinese patent document of CN201513218U discloses a kind of cylinder silencer, it by outer tube and
Inner tube is constituted, and outer tube is closed up and down, and outer tube is provided with air vent, and inner tube inserts outer tube, and inner tube is provided with noise reduction mouth, and inner tube leaks outside
One end threaded with cylinder exhaust port.This muffler structure is simple, and air draft is smooth and easy, reduces noise to a certain extent dirty
Dye, but the working environment under mine is very severe, does not only exist more dust, is accompanied by fluid in expellant gas, this
A little impurity all can retain in deafener.Therefore this kind of deafener can there is problems in that (1) this kind of deafener noise reduction outer tube not
Can open and be not easy that noise reduction chamber in outer tube carries out cleaning and safeguard, it is impossible to life-time service, these impurity retain accumulation not only
Air vent can be blocked and also can affect erasure effect；(2) air vent on outer tube is covered with one week, meeting when trickle is arranged at surrounding top
Dispelled with workman by air vent；(3) only with aperture noise reduction, erasure effect is limited, it is impossible to meet the purpose of more preferable noise reduction.
Summary of the invention
It is an object of the invention to provide a kind of noise reduction facilitating and each parts being disassembled cleaning and prevents impurity from blocking
Device.
For achieving the above object, the technical scheme of a kind of deafener of the present invention is: a kind of deafener, including the first housing
Mutually being combined to form a closing box with inner cavity chamber with the second housing, the first housing and the second housing, deafener also includes
Through the first housing or the second housing the breather within stretching into described closing box, breather is positioned on the one end closing box
It is provided with noise reduction mouth and is connected with closing box inner cavity chamber by noise reduction mouth, closing and be additionally provided with air vent on box.Use disappearing of the present invention
Sound device, the second housing and the first housing split arrange releasable connection, can be blocked time side at internal bloop or steam vent by impurity
Just open cleaning, extend deafener service life.
Further, described first housing and/or described second enclosure interior are provided with baffle, and baffle surrounds connection institute
State noise reduction mouth and the labyrinth passage of described air vent.Baffle is set and labyrinth passage can consume the energy of sound transmission,
There is more preferable erasure effect.
Further, described breather one end is fixed with described first housing, and the other end is through described second housing and sets
There is the attachment structure being connected with by the gas outlet of noise reduction object.This mode makes deafener installing/dismounting more convenient, may utilize simultaneously
This attachment structure makes the second housing and the first housing close apposition fix.
Further, described first housing or the second housing include diapire and surround diapire and constitute bucket body structure with diapire
Sidewall, the sidewall of the second housing is provided with the step surface that the end face block of the sidewall with the first housing coordinates.To ensure second
Housing and the first housing are involutory closely.
Further, described air vent is arranged on the sidewall of described first housing, and is positioned at described step surface and
Between the diapire of one housing.
Further, described air vent is located at the side of sidewall of described closing box, in order to by air vent alignment away from
The side of workman, prevents top board trickle in work from being dispelled by air vent and drenches staff's clothes.
The present invention also aims to provide a kind of roof-bolter, roof-bolter is provided with deafener, this deafener can facilitate
Each parts are disassembled cleaning and prevents impurity from blocking.
The technical scheme of roof-bolter of the present invention: a kind of roof-bolter, including body, body has gas outlet, and roof-bolter also wraps
Including the deafener connected with gas outlet, deafener includes that the first housing and the second housing, the first housing and the second housing are the most right
Closing and form a closing box with inner cavity chamber, deafener also includes through the first housing or the second housing and stretches into described closing
Breather within box, breather is positioned at one end of closing box and is provided with noise reduction mouth and by noise reduction mouth and closing box inner cavity chamber
Connection, closes and is additionally provided with air vent on box.
Further, described first housing and/or described second enclosure interior are provided with baffle, and baffle surrounds connection institute
State noise reduction mouth and the labyrinth passage of described air vent.Baffle is set and labyrinth passage can consume the energy of sound transmission,
There is more preferable erasure effect.
Further, described breather one end is fixed with described first housing, and the other end is through described second housing and sets
There is the attachment structure being connected with by the gas outlet of noise reduction object.This mode makes deafener installing/dismounting more convenient, may utilize simultaneously
This attachment structure makes the second housing and the first housing close apposition fix.
Further, described first housing or the second housing include diapire and surround diapire and constitute bucket body structure with diapire
Sidewall, the sidewall of the second housing is provided with the step surface that the end face block of the sidewall with the first housing coordinates.To ensure second
Housing and the first housing are involutory closely.
Further, described air vent is arranged on the sidewall of described first housing, and is positioned at described step surface and
Between the diapire of one housing.
Further, described air vent is located at the side of sidewall of described closing box, in order to by air vent alignment away from
The side of workman, prevents top board trickle in work from being dispelled by air vent and drenches staff's clothes.
Accompanying drawing explanation
Fig. 1 is the sectional view of the specific embodiment of a kind of deafener of the present invention；
Fig. 2 is the front view of the first housing of deafener of the present invention in Fig. 1；
Fig. 3 is the top view of the first housing of deafener of the present invention in Fig. 1；
Fig. 4 is the front view of the second housing of deafener of the present invention in Fig. 1；
Fig. 5 is top view and the partial enlarged drawing of the second housing of deafener of the present invention in Fig. 1；
In figure: 1-the first housing, 2-the second housing, 3-breather, 11-the first housing sidewall, 12-noise reduction mouth, 13-the first housing
Baffle, 14-air vent, 21-the second housing sidewall, 22-the second housing through-hole, 23-the second housing baffle.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiments of the present invention are described further.
A kind of specific embodiment of the roof-bolter of the present invention, described roof-bolter includes body, and body has gas outlet,
Connecting on gas outlet has deafener, described deafener to include the first housing the 1, second housing 2 and breather 3, described second shell
The mutual involutory composition of body the 2, first housing 1 has the closing box of inner cavity chamber, and described closing box is provided with air vent 14, breather
3 one end are closed and are connected with closing box by noise reduction mouth 12, and the other end is connected with the gas outlet of roof-bolter.
As shown in Figures 2 and 3, the first housing 1 is barrel-shaped structure, and in other embodiments, the first housing 1 is alternatively it
His polygonized structure, such as Fang Tong etc..Be welded with breather 3 and the first housing baffle 13 on drum head, in order to breather 3 with go out
QI KOU connect time the first housing 1 is pressed on the second housing 2, in other embodiments, breather 3 also can be bonded in drum head or
Use bolt or be threaded on drum head；Breather 3 could be suspended in the first housing 1, and meanwhile, breather 3 is through second
Housing 2 also fixing with the second housing 2 is connected, and the first housing 1 and the second housing 2 threaded, to prevent the first housing 1 from shaking
Dropping under Dong, set thread segment in the middle part of breather 3, the second housing through-hole 22 changes screwed hole into, and both fix at threaded engagement, and solid
The fixed noise reduction mouth 12 ensured the most afterwards on breather 3 is respectively positioned in closing box, or ventilation duct 3 and the second housing through-hole 22 contact position
Welding, and ensure that the fixing noise reduction mouth 12 ensured afterwards on breather 3 is respectively positioned in closing box；First housing baffle 13 also may be used
It is bonded in drum head；Also can not fix baffle on first housing 1, and baffle is all fixed on the second housing 2.Ventilation
Pipe 3 one end is positioned at the first housing 1 and involutory the formed closing box of the second housing 2, and the other end stretches out outside closing box and and anchor
The gas outlet of bar machine is threaded.
Breather 3 stretches out one end of closing box and is provided with thread segment, for threadeding with roof-bolter body, real at other
Execute in example, it is possible to use other removable connections, billiards structure is such as set at the gas outlet of roof-bolter, and at breather 3
Arranging corresponding groove, breather 3 is fixed and can use the TO of similar door keys by both cooperations；Breather 3 with
Roof-bolter body may be used without welding manner, and corresponding breather 3 is connected with closing box by removable modes such as screw threads, with convenient
Pull down closing box and clear up in it.
Baffle is polylith C-shaped sheet metal component, and polylith C-shaped sheet metal component oral area the most also interdigitation is arranged, and each other
Becoming to contain and inclusive state every ground, space composition labyrinth passage therebetween, gas energy after labyrinth passage will enter
One step is consumed, and erasure effect is notable, and in other embodiments, baffle is alternatively and is formed by one or more spiral plate
One or more spiral type labyrinth passage.Between baffle, spacing is difficult to arrange too small, in order to avoid foreign material passage.
First housing 1 is provided with near the side of drum head and the first housing sidewall 11 of the corner of the first housing sidewall 11
Uniform air vent 14, air vent 14 is arranged on the first housing sidewall 11 side, will have the side of air vent 14 down during assembling,
Having water to spray when avoiding upward, water is dispelled by the gas of air vent 14 and drenches miner's clothes, in other embodiments, and air vent 14
May also be arranged on the second housing 2 on the side of drum head and the first housing sidewall 11 of the corner of the first housing sidewall 11,
Or the second housing 2 and the first housing 1 are near drum head and the one of the first housing sidewall 11 of the corner of the first housing sidewall 11
Being equipped with uniform air vent 14 on side, now, the second housing 2 and the first housing 1 must assure that the row on both time involutory
QI KOU 14 is positioned at the same side closing box sidewall.
As shown in Figure 4 and Figure 5, the second housing 2 is barrel-shaped structure, and in other embodiments, the first housing 1 is alternatively it
His polygonized structure, such as Fang Tong etc..Second housing 2 bottom surface is welded with the second housing baffle 23.Set in second housing sidewall 21
There is the step surface that the end face block with the first housing sidewall 11 coordinates, so that the second housing 2 and the first housing 1 obtain the closeest
Envelope, in other embodiments, step surface may be alternatively provided in the first housing sidewall 11, or at the second housing sidewall 21 and the first shell
It is respectively provided with step surface on body sidewall 11；Also step surface can be not provided with, accordingly in the second housing sidewall 21 and the first housing sidewall
The conical surface cooperated is set on 11, also can ensure sealing property on the premise of meeting block.Step surface is located at the second shell
Outside body sidewall 21, the first housing sidewall 11 internal diameter is slightly larger than the second housing sidewall 21 external diameter, and the first housing sidewall 11 can be overlapped
Being contained in the second housing sidewall 21 and realize both involutory, in other embodiments, step surface may also be arranged on the second housing side
Inside wall 21, now the external diameter of the first housing sidewall 11 is slightly less than the internal diameter of the second housing sidewall 21, and the second housing sidewall 21 can
It is sleeved in the first housing sidewall 11 and realizes both involutory.
The bottom center of the second housing 2 is provided with the through hole for passing for breather 3, and in other embodiments, through hole is also
Can not in bottom surface in the heart, through hole can be threadeded with breather 3, it is also possible to welding, bonding or be provided with sealing ring etc..
During roof-bolter of the present invention uses:
Make roof-bolter deafener time, deafener can use the waste and old seamless steel of Φ 159 × 6 and 3mm thickness diamond plate welding and
Becoming, middle use Φ 50 × 3.5 galvanized pipe is as airway, and baffle uses 2mm thickness galvanized iron sheet to make, and so makes simple,
With low cost, save material.
During use, by the most involutory to the second housing 2 and the first housing 1, it is ensured that breather 3 passes the second housing through-hole 22,
Threaded for breather 3 one end is connected with roof-bolter body, and ensures that deafener has the side of air vent 14 down, to prevent
Top is overboard to be blown to workman by gas in air vent 14 and drenches clothes.Breather 3 is threadeded with roof-bolter body
During, upper, the first housing is the most involutory, screw thread screw after both compact siro spinning technology, if upper after screwing, the first housing fails to realize
Close apposition, can add between roof-bolter body and deafener and put suitable sleeve or packing ring.Gas is by disappearing on breather 3
It is internal (i.e. noise reduction inner cavity chamber) that sound mouth 12 enters closing box upper, the first involutory composition of housing, and sound passes through at noise reduction mouth 12
Noise reduction for the first time processes, and is intercepted by baffle after subsequently entering noise reduction inner cavity chamber, and gas continues the fan formed along baffle
Palace formula channel flow, and clash into the lower energy consuming sound transmission the most back and forth, reach the purpose of second time noise reduction, gas
Continue flowing and shed along the air vent 14 closed on box.
The specific embodiment of deafener of the present invention has with each of the deafener in each specific embodiment of roof-bolter of the present invention
Body embodiment is identical, and here is omitted.
Claims (10)
1. a deafener, it is characterised in that: include that the first housing and the second housing, the first housing and the second housing are the most involutory
Forming a closing box with inner cavity chamber, deafener also includes through the first housing or the second housing and stretches into described closing box
Within breather, breather be positioned at close box one end be provided with noise reduction mouth and by noise reduction mouth with close box inner cavity chamber connect
Logical, close and be additionally provided with air vent on box.
Deafener the most according to claim 1, it is characterised in that: described first housing and/or described second enclosure interior
Being provided with baffle, baffle surrounds the described noise reduction mouth of connection and the labyrinth passage of described air vent.
Deafener the most according to claim 1 and 2, it is characterised in that: described breather one end is solid with described first housing
Fixed, the other end is through described second housing and is provided with the attachment structure being connected with by the gas outlet of noise reduction object.
Deafener the most according to claim 3, it is characterised in that: described first housing or the second housing include diapire and bag
Enclosing diapire and constitute the sidewall of bucket body structure with diapire, the sidewall of the second housing is provided with the end face gear of the sidewall with the first housing
The step surface only coordinated.
Deafener the most according to claim 4, it is characterised in that: described air vent is arranged on the sidewall of described first housing
On, and between the diapire of described step surface and the first housing.
Deafener the most according to claim 1 and 2, it is characterised in that: described air vent is located at the sidewall of described closing box
Side.
7. a roof-bolter, it is characterised in that: including that body, body have gas outlet, roof-bolter also includes connecting with gas outlet
Deafener, deafener includes that the first housing and the second housing, the first housing and the second housing are mutually combined to form one and have
The closing box of inner cavity chamber, deafener also includes through the first housing or the second housing the ventilation within stretching into described closing box
Pipe, breather is positioned at one end of closing box and is provided with noise reduction mouth and is connected with closing box inner cavity chamber by noise reduction mouth, closes box
On be additionally provided with air vent.
Roof-bolter the most according to claim 7, it is characterised in that: described first housing and/or described second enclosure interior
Being provided with baffle, baffle surrounds the described noise reduction mouth of connection and the labyrinth passage of described air vent.
9. according to the roof-bolter described in claim 7 or 8, it is characterised in that: described breather one end is solid with described first housing
Fixed, the other end is through described second housing and is provided with the attachment structure being connected with by the gas outlet of noise reduction object.
Roof-bolter the most according to claim 9, it is characterised in that: described first housing or the second housing include diapire and
Surrounding diapire and constitute the sidewall of bucket body structure with diapire, the sidewall of the second housing is provided with the end face of the sidewall with the first housing
The step surface that block coordinates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610766389.XA CN106246292B (en) | 2016-08-31 | 2016-08-31 | A kind of muffler and roof-bolter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610766389.XA CN106246292B (en) | 2016-08-31 | 2016-08-31 | A kind of muffler and roof-bolter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106246292A true CN106246292A (en) | 2016-12-21 |
| CN106246292B CN106246292B (en) | 2019-05-03 |
Family
ID=57598218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610766389.XA Expired - Fee Related CN106246292B (en) | 2016-08-31 | 2016-08-31 | A kind of muffler and roof-bolter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106246292B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266248A (en) * | 2018-02-12 | 2018-07-10 | 芜湖长捷航空动力科技有限责任公司 | A kind of special noise elimination flame dampener |
| CN108652480A (en) * | 2017-03-27 | 2018-10-16 | 佛山市顺德区美的电热电器制造有限公司 | Cup lid component and wall-breaking machine |
| CN112196802A (en) * | 2020-09-10 | 2021-01-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Silencing cover, compressor and air conditioner |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1212785B (en) * | 1961-01-17 | 1966-03-17 | Kloeckner Humboldt Deutz Ag | Silencer |
| CN2117473U (en) * | 1992-02-25 | 1992-09-30 | 刘国全 | Labyrinth silencer |
| CN2578544Y (en) * | 2002-11-06 | 2003-10-08 | 石家庄煤矿机械有限责任公司 | Metal hollow spindle gear pneumatic motor |
| CN1637239A (en) * | 2004-01-09 | 2005-07-13 | 本田技研工业株式会社 | Exhaust apparatus for small-sized engine |
| CN101725389A (en) * | 2008-10-10 | 2010-06-09 | 上海熊猫机械集团通用设备有限公司 | Novel labyrinth suction muffler |
| CN201513218U (en) * | 2009-08-29 | 2010-06-23 | 兰州连城陇兴铝业有限责任公司 | Cylinder silencer |
| CN104564454A (en) * | 2015-01-14 | 2015-04-29 | 四川汽车工业股份有限公司 | Intake muffler of automobile engine and realization method |
-
2016
- 2016-08-31 CN CN201610766389.XA patent/CN106246292B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1212785B (en) * | 1961-01-17 | 1966-03-17 | Kloeckner Humboldt Deutz Ag | Silencer |
| CN2117473U (en) * | 1992-02-25 | 1992-09-30 | 刘国全 | Labyrinth silencer |
| CN2578544Y (en) * | 2002-11-06 | 2003-10-08 | 石家庄煤矿机械有限责任公司 | Metal hollow spindle gear pneumatic motor |
| CN1637239A (en) * | 2004-01-09 | 2005-07-13 | 本田技研工业株式会社 | Exhaust apparatus for small-sized engine |
| CN101725389A (en) * | 2008-10-10 | 2010-06-09 | 上海熊猫机械集团通用设备有限公司 | Novel labyrinth suction muffler |
| CN201513218U (en) * | 2009-08-29 | 2010-06-23 | 兰州连城陇兴铝业有限责任公司 | Cylinder silencer |
| CN104564454A (en) * | 2015-01-14 | 2015-04-29 | 四川汽车工业股份有限公司 | Intake muffler of automobile engine and realization method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108652480A (en) * | 2017-03-27 | 2018-10-16 | 佛山市顺德区美的电热电器制造有限公司 | Cup lid component and wall-breaking machine |
| CN108266248A (en) * | 2018-02-12 | 2018-07-10 | 芜湖长捷航空动力科技有限责任公司 | A kind of special noise elimination flame dampener |
| CN112196802A (en) * | 2020-09-10 | 2021-01-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Silencing cover, compressor and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106246292B (en) | 2019-05-03 |
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