CN204851385U - Variable back pressure amortization drum - Google Patents
Variable back pressure amortization drum Download PDFInfo
- Publication number
- CN204851385U CN204851385U CN201520548566.8U CN201520548566U CN204851385U CN 204851385 U CN204851385 U CN 204851385U CN 201520548566 U CN201520548566 U CN 201520548566U CN 204851385 U CN204851385 U CN 204851385U
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- CN
- China
- Prior art keywords
- hush pipe
- chamber
- housing
- cavity
- net dish
- 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.)
- Expired - Fee Related
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a variable back pressure amortization drum. Including the casing, separate into first cavity, second cavity, third cavity, fourth cavity and the 5th cavity through the net dish in the casing, be equipped with the amortization cotton in first cavity and the 5th cavity, being equipped with first hush pipe on the casing, being equipped with the wedge bloop on lieing in the first hush pipe of casing, be connected with the second hush pipe on the first hush pipe in the first cavity, its one end stretches into to the fourth cavity in, lies in to be connected with the third hush pipe on the outer first hush pipe of casing, and its one end stretches into to the second cavity in, wherein lies in first hush pipe between baffle and first hush pipe and the third hush pipe junction and is equipped with the valve, and the valve is connected through movable connecting rod and electric putter, be equipped with bluetooth signal receiver among the electric putter. The utility model discloses have and to realize the bulging interconversion of in line drum and back pressure in same amortization drum, and noise cancelling effect is good, the beneficial effect of sound construction.
Description
Technical field
The utility model relates to a kind of automobile silencing drum, the automobile silencing drum that particularly a kind of back pressure is variable.
Background technique
A kind of torsion to automobile of back pressure noise reduction drum has certain noise reduction drum promoted, it can regulate the size of back pressure according to the rotating speed of motor car engine, to the torsion of motor, there is castering action when the motor car engine slow-speed of revolution, simultaneously, itself or a kind ofly stop sound transmission and the device that allows air-flow to pass through, be the important measures eliminating car hollow aerodynamic force noise.In existing automobile silencing drum, there are in line drum and back pressure drum two kinds, back pressure can not be formed in the drum of in line drum, be vented very smooth and easy, horsepower when being in high rotating speed to motor car engine has certain castering action, but, its exhaust sound is very large, seriously cause the noise pollution of surrounding environment, back pressure drum then can form back pressure, has certain castering action to the torsion during motor car engine slow-speed of revolution, simultaneously, because smooth in exhaust degree is lower, its erasure effect is better, and the sound of exhaust can not cause too large noise pollution.But the effect of two kinds of noise reduction drums is comparatively fixing, the conversion of in line drum and back pressure drum can not be realized in same noise reduction drum.
Summary of the invention
The purpose of this utility model is, provides a kind of variable back pressure noise reduction drum.The utility model has the advantages that to realize in line drum and the mutual conversion of back pressure drum in same noise reduction drum, and in addition, the utility model has the feature of good muffling effect.
The technical solution of the utility model: a kind of variable back pressure noise reduction drum, include housing, the two ends of housing are provided with baffle plate, the net dish of four band mesh is provided with in housing, connect through connecting rod between net dish, and the first chamber, the second chamber, the 3rd chamber, the 4th chamber and the 5th chamber will be separated in housing, be provided with silencing cotton in the first chamber and the 5th chamber, the first hush pipe is provided with in described housing, the two ends of the first hush pipe pass from the baffle plate at housing two ends respectively, and extend to the outside of housing, the first hush pipe being positioned at housing is provided with and caves inward and the wedge shape bloop distributed in the shape of a spiral, its opening direction is contrary with exhaust gas flow direction, the first hush pipe being positioned at the first chamber is connected with the second hush pipe, its one end is through after net dish, stretch in the 4th chamber, be positioned on the first hush pipe outside the housing of the 5th chamber side and be connected with the 3rd hush pipe, its one end is through after baffle plate and net dish, stretch in the second chamber, wherein in baffle plate and the first hush pipe between the first hush pipe and the 3rd hush pipe joint, be provided with valve, valve is movably connected in the first hush pipe through rotatingshaft, the tube wall of the first hush pipe is passed in one end of rotatingshaft, and be connected with the electric pushrod being located at the first hush pipe side through movable connecting rod, Bluetooth signal receiver is provided with in described electric pushrod.
Aforesaid variable back pressure noise reduction drum, the edge of described net dish is by the arc surface turned over into perpendicular to net dish.
The beneficial effects of the utility model: the utility model by arranging first hush pipe in housing, and the first hush pipe in housing connects the second hush pipe, its one end stretches in the 4th chamber through net dish, the first hush pipe outside housing connects the 3rd hush pipe, its one end is through stretching in the second chamber after baffle plate and net dish, simultaneously, at the first hush pipe being positioned at outside, valve is set, and by the folding being used for control valve of electric pushrod, when the in line function of needs, open valve, vehicle exhaust is made directly to discharge noise reduction drum from the first hush pipe, smooth in exhaust, to the horsepower of rev-happy engine, there is castering action, when needs back pressure function, throttle down, tail gas enters in the 4th chamber from the second hush pipe, then through entering the second chamber after net dish and the 3rd chamber and discharging noise reduction drum from the 3rd hush pipe, tail gas enters when noise reduction is roused at the second chamber, pile up in 3rd chamber and the 4th chamber, form back pressure, to the torsion of motor during the slow-speed of revolution, there is certain castering action, simultaneously, tail gas enters in the silencing cotton in the first chamber and the 5th chamber through mesh, eliminate partial noise, reduce noise pollution.In addition, by arranging wedge shape bloop on the first hush pipe of the present utility model, wedge shape bloop is by by inside for hush pipe rolling, the bloop of the HALF OPENING shape formed, because its opening direction is contrary with exhaust gas flow direction, air-flow is being easy to through the first hush pipe flow out the first hush pipe after wedge shape bloop water conservancy diversion, enter in silencing cotton, eliminate partial noise, reduce the noise pollution of vertical pipe, meanwhile, because wedge shape bloop distributes in the shape of a spiral, the area of contact of itself and air-flow is larger, and erasure effect is better.In addition, by the edge of net dish of the present utility model being turned over into the arc surface perpendicular to net dish, increase the surface of contact of net dish and inner walls, make net dish be easier to welding, structure is more firm.In sum, the utility model has can realize in line drum and the conversion mutually of back pressure drum in same noise reduction drum, and good muffling effect, well-set beneficial effect.
Accompanying drawing explanation
Accompanying drawing 1 is sectional view of the present utility model;
Accompanying drawing 2 is three-dimensional structure schematic diagram of the present utility model;
Accompanying drawing 3 is the sectional view of the first hush pipe.
Description of reference numerals: 1-housing, 2-baffle plate, 3-connecting rod, 4-mesh, 5-net dish, 6-first chamber, 7-second chamber, 8-the 3rd chamber, 9-the 4th chamber, 10-the 5th chamber, 11-first hush pipe, 12-second hush pipe, 13-the 3rd hush pipe, 14-valve, 15-movable connecting rod, 16-electric pushrod, 17-wedge shape bloop.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described, but not as the foundation limited the utility model.
Embodiment of the present utility model: a kind of variable back pressure noise reduction drum, as illustrated in the accompanying drawings from 1 to 3, include housing 1, the two ends of housing 1 are provided with baffle plate 2, the net dish 5 of four band mesh 4 is welded with in housing 1, net dish 5 connects through connecting rod 3, and it is filled with silencing cotton by being separated in housing 1 in first chamber 6, second chamber 7, the 3rd chamber 8, the 4th chamber 9 and the 5th chamber 10, first chamber 6 and the 5th chamber 10, the first hush pipe 11 is provided with in described housing 1, the two ends of the first hush pipe 11 pass from the baffle plate 2 at housing 1 two ends respectively, and extend to the outside of housing 1, what the first hush pipe 11 being positioned at housing 1 was formed through rolling caving inward and the wedge shape bloop 17 distributed in the shape of a spiral, its opening direction is contrary with exhaust gas flow direction, the first hush pipe 11 in described first chamber 6 is connected with the second hush pipe 12, its one end is through after net dish 5, stretch in the 4th chamber 9, be positioned on the first hush pipe 11 outside the housing 1 of the 5th chamber 10 side and be connected with the 3rd hush pipe 13, its one end is through after baffle plate 2 and net dish 5, stretch in the second chamber 7, wherein in baffle plate 2 and the first hush pipe 11 between the first hush pipe 11 and the 3rd hush pipe 13 joint, be provided with valve 14, valve 14 is movably connected in the first hush pipe 11 through rotatingshaft, the tube wall of the first hush pipe 11 is passed in one end of rotatingshaft, and be connected with the electric pushrod 16 being located at the first hush pipe 11 side through movable connecting rod 15, Bluetooth signal receiver is provided with in described electric pushrod 16.
The edge of described net dish 5 is by the arc surface turned over into perpendicular to net dish 5.
Working principle of the present utility model: as shown in Figure 1, tail gas enters in housing 1 from first hush pipe 11 in noise reduction drum left side, Bluetooth function is utilized to control electric pushrod 16 action by mobile phone or other-end, and be with movable valve 14 folding, when the in line function of needs, valve 14 is opened, because the exhaust resistance of the first hush pipe 11 is lower, tail gas directly gets rid of noise reduction drum after the first hush pipe 11 noise reduction, smooth in exhaust, when needs back pressure function, throttle down 14, tail gas flows to the 4th chamber 9 through the second hush pipe 12, then the second chamber 7 is entered through after net dish 5 and the 3rd chamber 8, finally discharge noise reduction drum from the 3rd hush pipe 13, make tail gas at the second chamber 7, pile up in 3rd chamber 8 and the 4th chamber 9, form back pressure.In addition, when using in line function, partial tail gas flows out the first hush pipe 11 after wedge shape bloop 17 water conservancy diversion on the first hush pipe 11, is then absorbed by the silencing cotton in the first chamber 6 and the 5th chamber 10, reduces the noise pollution of vertical pipe; In like manner, when using back pressure function, partial tail gas enters in the first chamber 6 and the 5th chamber 10 through mesh 4, is then absorbed by silencing cotton, reduces the noise of back pressure drum, makes exhaust sound more overcast.
As preferably, the edge of described net dish 5 is by the arc surface turned over into perpendicular to net dish 5.Which increase the surface of contact of net dish 5 and housing 1 inwall, make net dish 5 be easier to welding, structure is more firm.
Claims (2)
1. a variable back pressure noise reduction drum, it is characterized in that: include housing (1), the two ends of housing (1) are provided with baffle plate (2), the net dish (5) of four bands mesh (4) is provided with in housing (1), connect through connecting rod (3) between net dish (5), and the first chamber (6), the second chamber (7), the 3rd chamber (8), the 4th chamber (9) and the 5th chamber (10) will be separated in housing (1), be provided with silencing cotton in the first chamber (6) and the 5th chamber (10), the first hush pipe (11) is provided with in described housing (1), the two ends of the first hush pipe (11) pass from the baffle plate (2) at housing (1) two ends respectively, and extend to the outside of housing (1), the first hush pipe (11) being positioned at housing (1) is provided with and caves inward and the wedge shape bloop (17) distributed in the shape of a spiral, its opening direction is contrary with exhaust gas flow direction, the first hush pipe (11) being positioned at the first chamber (6) is connected with the second hush pipe (12), its one end is through after net dish (5), stretch in the 4th chamber (9), the housing (1) being positioned at the 5th chamber (10) side the first hush pipe (11) is outward connected with the 3rd hush pipe (13), its one end is through after baffle plate (2) and net dish (5), stretch in the second chamber (7), wherein be positioned at baffle plate (2) and the first hush pipe (11) between the first hush pipe (11) and the 3rd hush pipe (13) joint is provided with valve (14), valve (14) is movably connected in the first hush pipe (11) through rotatingshaft, the tube wall of the first hush pipe (11) is passed in one end of rotatingshaft, and be connected with the electric pushrod (16) being located at the first hush pipe (11) side through movable connecting rod (15), described electric pushrod is provided with Bluetooth signal receiver in (16).
2. variable back pressure noise reduction drum according to claim 1, is characterized in that: the edge of described net dish (5) is by the arc surface turned over into perpendicular to net dish (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520548566.8U CN204851385U (en) | 2015-07-27 | 2015-07-27 | Variable back pressure amortization drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520548566.8U CN204851385U (en) | 2015-07-27 | 2015-07-27 | Variable back pressure amortization drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204851385U true CN204851385U (en) | 2015-12-09 |
Family
ID=54741943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520548566.8U Expired - Fee Related CN204851385U (en) | 2015-07-27 | 2015-07-27 | Variable back pressure amortization drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204851385U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104904A (en) * | 2018-01-18 | 2018-06-01 | 河南中盛汽配科技股份有限公司 | A kind of silencer with regulatory function |
| CN115217580A (en) * | 2021-12-02 | 2022-10-21 | 广州汽车集团股份有限公司 | Automobile silencing exhaust device |
-
2015
- 2015-07-27 CN CN201520548566.8U patent/CN204851385U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104904A (en) * | 2018-01-18 | 2018-06-01 | 河南中盛汽配科技股份有限公司 | A kind of silencer with regulatory function |
| CN115217580A (en) * | 2021-12-02 | 2022-10-21 | 广州汽车集团股份有限公司 | Automobile silencing exhaust device |
| CN115217580B (en) * | 2021-12-02 | 2023-08-15 | 广州汽车集团股份有限公司 | Automobile silencing and exhausting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20170727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |