CN218542363U - Silencer of automobile exhaust system - Google Patents

Abstract

The utility model discloses an automobile exhaust system muffler, including the hush pipe, one side of hush pipe is equipped with the inlet port and is connected with the intake pipe, and the opposite side of hush pipe is connected with the outlet duct, sets up first siphunculus in the hush pipe, and the internal diameter of first siphunculus is put from central point to both ends grow gradually, has laid first bleeder vent on the first siphunculus, and the hush pipe in the first siphunculus outside is provided with the second siphunculus, and the internal diameter of second siphunculus is put from central point and is dwindled to both ends gradually, has laid the second bleeder vent on the second siphunculus. The high-speed gas is discharged from the first air holes, the discharged high-speed gas is gathered towards the outer circle center of the first through pipe and is counteracted with each other, kinetic energy of the reduced gas is used for noise reduction, noise which is not eliminated is absorbed by the filling material at the same time, the rest high-speed gas is discharged from the second air holes on the second through pipe and is subjected to diffuse reflection by the first bumps on the inner wall of the noise reduction pipe, the diffuse reflection high-speed gas is counteracted with each other, and the high-speed gas is not directly blocked and cannot generate noise for a second time.

Description

Silencer of automobile exhaust system

Technical Field

The utility model belongs to the technical field of the car amortization, concretely relates to car exhaust system muffler.

Background

The automobile silencer is a part used for reducing noise generated when an engine of a motor vehicle works, the noise generated by the automobile engine is mainly borne and transmitted by high-speed gas, and the silencer slowly releases the high-speed gas to reduce the sound, so that the silencing effect is achieved.

Chinese utility model patent with granted bulletin No. CN216554057U discloses an automobile exhaust system muffler, including the outer muffler body, the interior muffler body, dust board and connection lid, the installation pole is installed to the inboard of the outer muffler body, and the inboard of installation pole is provided with the interior muffler body, first deep bead is installed in the outside of the interior muffler body, and the downside of first deep bead is provided with the second deep bead, ventilative otter board is installed to the inboard of the interior muffler body, and the downside of ventilative otter board is provided with the dust board, first stopper is installed to the outside of the outer muffler body, and the inboard of first stopper is provided with the second stopper, the clamp is installed to the outside of second stopper, and the inboard of clamp is provided with the connecting plate, and the inboard of connecting plate is provided with the bolt, the connection lid is installed to the downside of the outer muffler body, and the inboard of connection lid is provided with the third stopper, the outside of third stopper is provided with the connecting block, and the outside of connecting block is provided with the handle, be the slope setting through the second deep bead, and the outside of the interior muffler body of the second deep bead is the equal angle setting, be provided with ventilative otter board, first deep bead, the first gas is carried out the amortization effect, it is showing to block. The defects are as follows: the high-speed flowing gas directly impacts the air plate, and can generate noise secondarily when impacting the air plate, so that the noise reduction effect is weaker.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automobile exhaust system muffler to solve among the prior art high-speed flowing gas direct impact on the aerofoil, can secondary produce the noise when striking the aerofoil, the less strong problem of noise cancelling effect.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an automobile exhaust system muffler, includes the hush pipe, one side of hush pipe is equipped with the inlet port and is connected with the intake pipe, the opposite side of hush pipe is connected with the outlet duct, set up first siphunculus in the hush pipe, the internal diameter of first siphunculus is put from the central point and is grown to both ends gradually, laid first bleeder vent on the first siphunculus, be provided with the second siphunculus in the hush pipe in the first siphunculus outside, the internal diameter of second siphunculus is put from the central point and is diminished to both ends gradually, laid the second bleeder vent on the second siphunculus, be provided with the stopping between first siphunculus and the second siphunculus, laid first jack on one side of hush pipe, laid the second jack on the outlet duct, all be connected with the connecting pipe between first jack and the second jack.

Preferably, the one end of intake pipe and outlet duct all is provided with the flange ring, and the flange ring is convenient for install the device on the blast pipe.

Preferably, the air inlet pipe is provided with a slot, an insert ring is inserted into the slot, a first filter screen is arranged in the insert ring, the air inlet pipes on two sides of the slot are respectively provided with a screw thread, the screw threads on the air inlet pipes are respectively screwed with a spiral ring, the spiral ring is provided with a limiting ring, and the spiral rings are respectively rotated towards two sides to take down the insert ring and clean the first filter screen.

Preferably, insert and be equipped with the recess on the ring, the recess interpolation is equipped with the sealing ring, and the sealing ring prevents that gas from leaking.

Preferably, be provided with the second filter screen in the first siphunculus, the second filter screen prevents that impurity from getting into in the first ventilation hole.

Preferably, the inner wall of the silencing pipe is provided with a first bump, and the first bump diffusely reflects high-speed gas which is not consumed.

Preferably, one end of the silencing tube is provided with a second bump, the second bump is provided with a tube slot, and the second bump rebounds the gas which does not flow out of the first air hole.

Compared with the prior art, the beneficial effects of the utility model are that: the high-speed gas is discharged from the first air holes on the first through pipe, the discharged high-speed gas is gathered towards the outer circle center of the first through pipe and is counteracted with each other, the kinetic energy of the reducing gas is used for silencing, the noise which is not eliminated is absorbed by the filling material at the same time, the rest high-speed gas is discharged from the second air holes on the second through pipe and is diffusely reflected by the first convex blocks on the inner wall of the silencing pipe, the diffusely reflected high-speed gas is counteracted with each other, the high-speed gas which is not counteracted enters the second air holes again and is counteracted with the discharged high-speed gas, and the high-speed flowing gas is not directly blocked and cannot generate noise for a second time.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a front view of the cutting schematic diagram of the present invention;

FIG. 3 isbase:Sub>A schematic sectional view taken at A-A in FIG. 1;

fig. 4 is an enlarged schematic view of a in fig. 2.

In the figure: 1. a silencing tube; 2. an air inlet pipe; 3. an air outlet pipe; 4. a flange ring; 5. inserting slots; 6. inserting a ring; 7. a first filter screen; 8. a thread; 9. a spiro ring; 10. a limiting ring; 11. a groove; 12. a seal ring; 13. a first through pipe; 14. a first air vent; 15. a second filter screen; 16. a second pipe; 17. a second air hole; 18. a filler; 19. a first bump; 20. a second bump; 21. and (4) a pipe groove.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1, 2, 3 and 4, an embodiment of the present invention provides a muffler for an automobile exhaust system, which comprises a muffler pipe 1, wherein an air inlet is formed in the left side of the muffler pipe 1, an air inlet pipe 2 is welded on the left side of the muffler pipe 1 in a seamless manner, an air outlet pipe 3 is welded on the right side of the muffler pipe 1, flange rings 4 are welded on the outer ends of the air inlet pipe 2 and the air outlet pipe 3, the flange rings 4 are convenient to mount on an exhaust pipe, an insertion slot 5 is formed in the air inlet pipe 2, an insertion ring 6 is slidably inserted in the insertion slot 5, a first filter 7 is welded in the insertion ring 6, the number of the filter meshes of the first filter 7 is 80, the first filter 7 filters impurities in exhaust gas to prevent the impurities from entering the muffler, threads 8 are formed on the air inlet pipe 2 on the left and right sides of the insertion slot 5, a spiral ring 9 is screwed on the threads 8 on the air inlet pipe 2, a limit ring 10 is arranged on the spiral ring 9, the spiral ring 9 as a single piece, the limiting ring 10 prevents the insert ring 6 from falling off, a groove 11 is formed in the insert ring 6, a sealing ring 12 is inserted in the groove 11 in an interference manner, the sealing ring 12 is made of high-temperature-resistant rubber, the spiral ring 9 is screwed to the insert ring 6, the spiral ring 9 abuts against the sealing ring 12 to prevent gas leakage, the spiral ring 9 is rotated towards two sides respectively to take down the insert ring 6 and clean a first filter screen, a first through pipe 13 is welded in the silencing pipe 1, the inner diameter of the first through pipe 13 is gradually increased from the central position to two ends, first vent holes 14 are uniformly formed in the first through pipe 13, gas enters the first through pipe 13 and passes through the first through holes 14, the gas is discharged from the first through holes 14 and then is gathered towards the outer side, a second filter screen 15 is bonded in the first through pipe 13, impurities are prevented from entering the first through holes 14 by the second filter screen 15, a second through pipe 16 is welded in the silencing pipe 1 outside the first through pipe 13, the inner diameter of the second tube 16 gradually decreases from the center to the two ends, the second tube 16 is uniformly provided with second air holes 17, the consumed kinetic energy gas is discharged from the second air holes 17, a filling material 18 is filled between the first tube 13 and the second tube 16, the filling material 18 is high-temperature-resistant silencing cotton, and the filling material 18 further eliminates the noise of the automobile.

As shown in fig. 2 and 3, the inner wall of the silencing tube 1 is uniformly welded with first bumps 19, the first bumps 19 bounce and diffuse reflection of consumed high-speed gas, the diffuse reflected high-speed gas further cancels out, the gas which does not cancel out enters the second vent holes 17 again and is absorbed by the filler 18, the left end of the silencing tube 1 is welded with second bumps 20, the second bumps 20 are uniformly provided with tube slots 21, the gas which enters the first through tube 13 is reflected by the second bumps 20 and is partially absorbed by the tube slots 21, the right side of the silencing tube 1 is provided with 4 first jacks 22, the outlet tube 3 is provided with 4 second jacks 23, connecting tubes 24 are welded between the first jacks 22 and the second jacks 23, and the gas with the energy removed enters the outlet tube 3 from the connecting tubes 24 and is discharged.

The working principle of the embodiment is as follows: the gas with high-speed kinetic energy enters from the air inlet pipe 2 and is filtered by the first filter screen 7 in the air inlet pipe 2, impurities in the gas are filtered, the impurities are prevented from entering the silencing pipe 1, the high-speed gas enters the first through pipe 13, the impurities are further prevented from entering the second filter screen 15 on the first through pipe 13, the high-speed gas is discharged from the first air holes 14 on the first through pipe 13, the discharged high-speed gas is gathered to the outer circle center of the first through pipe 13 and is counteracted with each other, the kinetic energy of the attenuated gas is silenced, the noise which is not eliminated is absorbed by the filling material 18, the residual high-speed gas is discharged from the second air holes 17 on the second through pipe 16 and is diffusely reflected by the first bumps 19 on the inner wall of the silencing pipe 1, the diffusely reflected high-speed gas is counteracted with each other, the high-speed gas which is not counteracted with the discharged high-speed gas enters the second air holes 17 again and is counteracted with the discharged high-speed gas, the high-speed gas which does not enter the first through holes 14 in the first through pipe 13 and is reflected by the second bumps 20, the pipe grooves 21 on the second bumps 20 can further consume the high-speed gas to eliminate the kinetic energy, and the high-speed gas which is discharged from the air outlet pipe 3 and is discharged out from the air outlet pipe 24.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims (7)

1. A muffler for an automobile exhaust system, comprising: including hush pipe (1), one side of hush pipe (1) is equipped with the inlet port and is connected with intake pipe (2), the opposite side of hush pipe (1) is connected with outlet duct (3), set up first siphunculus (13) in hush pipe (1), the internal diameter of first siphunculus (13) is from central point to both ends grow gradually, laid first bleeder vent (14) on first siphunculus (13), be provided with second siphunculus (16) in hush pipe (1) in first siphunculus (13) outside, the internal diameter of second siphunculus (16) is from central point to both ends diminish gradually, laid second bleeder vent (17) on second siphunculus (16), be provided with stopping (18) between first siphunculus (13) and second siphunculus (16), first jack (22) have been laid to one side of hush pipe (1), laid second jack (23) on outlet duct (3), all be connected with between first jack (22) and second jack (23) connecting pipe jack (24).

2. The muffler of claim 1, wherein: and flange rings (4) are arranged at one ends of the air inlet pipe (2) and the air outlet pipe (3).

3. The muffler of claim 1, wherein: be equipped with slot (5) on intake pipe (2), slot (5) interpolation is equipped with inserts ring (6), be provided with first filter screen (7) in inserting ring (6), all be equipped with screw thread (8) on intake pipe (2) of slot (5) both sides, intake pipe (2) are gone up equal spiro union in screw thread (8) and are had spiro union (9), all be provided with spacing ring (10) on spiro union (9).

4. The muffler for an automobile exhaust system according to claim 3, wherein: insert and be equipped with recess (11) on the ring (6), recess (11) interpolation is equipped with sealing ring (12).

5. The muffler of claim 1, wherein: and a second filter screen (15) is arranged in the first through pipe (13).

6. The muffler of claim 1, wherein: the inner wall of the silencing pipe (1) is provided with a first bump (19).

7. The muffler of claim 1, wherein: one end of the silencing pipe (1) is provided with a second bump (20), and a pipe groove (21) is distributed on the second bump (20).

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