CN217270422U - Exhaust pipe assembly structure for automobile - Google Patents

Abstract

The utility model relates to an exhaust pipe assembly structure for car, it adopts the clamp to be connected the tip of blast pipe and outside trachea and replaces the welded mode commonly used, prevents to lead to damaging under the violent vibrations of engine, thermal-insulated shell is including thermal-insulated chamber one and thermal-insulated chamber two, thermal-insulated chamber one is the same with the big or small shape homogeneous phase in thermal-insulated chamber two, thermal-insulated chamber one includes two sets of connecting portion and thermal-insulated portion, and is two sets of connecting portion set up at the both ends of thermal-insulated portion, and connecting portion and thermal-insulated portion set up to integrated into one piece, and the cross section of connecting portion is semi-circular, and the diameter of connecting portion inner wall is the same with the diameter of blast pipe outer wall, the diameter of connecting portion inner wall with the diameter of outlet duct outer wall is the same, is provided with the staple bolt on the connecting portion. Establish thermal-insulated shell at the outside cover of bellows to thermal-insulated shell sets up to dismantling with the bellows and is connected, can reduce the temperature around the blast pipe, prevents that the high temperature from leading to the damage of components and parts on every side, can dismantle the mode of connection can be convenient for the maintenance in later stage.

Description

Exhaust pipe assembly structure for automobile

Technical Field

The application relates to the field of automobile exhaust pipes, in particular to an exhaust pipe assembly structure for an automobile.

Background

The exhaust pipe is also called as automobile exhaust hose and is installed between the engine exhaust branch pipe and the silencer to make the whole exhaust system in flexible connection, so as to play the role of vibration damping and noise reduction, convenient installation and prolonging the service life of the exhaust silencing system. The structure of the vehicle is that a double-layer corrugated pipe is covered with a steel wire net sleeve, and straight edge sections at two ends are covered with snap rings, so that the noise elimination effect is better, and an expansion joint or a net sleeve can be matched in the corrugated pipe.

Aiming at the existing exhaust pipe, the inventor thinks that the existing exhaust can generate a large amount of heat during working, the sensor assembly around can be damaged by overhigh temperature, the connection part of the wound stainless steel metal hose and other exhaust pipes is in a welding mode, and the wound stainless steel metal hose is easy to damage due to violent vibration of an engine, so that a novel automobile exhaust pipe is needed to be designed.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, the present application provides an exhaust pipe assembly structure for an automobile.

The application provides an exhaust pipe assembly structure for car adopts following technical scheme:

the utility model provides an exhaust pipe assembly structure for car, includes intake pipe, bellows and outlet duct, the both ends of bellows are connected respectively the intake pipe with the outlet duct, the bellows overcoat is equipped with thermal-insulated shell, thermal-insulated shell with the bellows sets up to dismantle the connection.

Through adopting above-mentioned technical scheme, establish thermal-insulated shell at the outside cover of bellows to thermal-insulated shell sets up to dismantling with the bellows and is connected, can reduce the temperature around the blast pipe, prevents that the high temperature from leading to the damage of components and parts around, can dismantle the mode of connecting and can be convenient for the maintenance in later stage.

Optionally, the thermal-insulated shell is including thermal-insulated chamber one and thermal-insulated chamber two, thermal-insulated chamber one is the same with the big or small shape in thermal-insulated chamber two, thermal-insulated chamber one includes two sets of connecting portion and thermal-insulated portion, and is two sets of connecting portion set up the both ends at thermal-insulated portion, connecting portion with thermal-insulated portion sets up to integrated into one piece, the cross section of connecting portion is semi-circular, the diameter of connecting portion inner wall with the diameter of blast pipe outer wall is the same, the diameter of connecting portion inner wall with the diameter of outlet duct outer wall is the same, be provided with the staple bolt on the connecting portion.

Through adopting above-mentioned technical scheme, thermal-insulated shell divide into thermal-insulated chamber one and thermal-insulated chamber two, and two sets of thermal-insulated chamber concatenations to tightly hoop with the staple bolt can realize playing thermal-insulated effect to the outside parcel of bellows.

Optionally, an insertion block is arranged on the side wall of the first heat insulation cavity, a slot is correspondingly arranged on the side wall of the second heat insulation cavity, and the insertion block is inserted into the slot.

Through adopting above-mentioned technical scheme, this kind of structure can prevent to take place the skew at thermal-insulated chamber one and thermal-insulated chamber two in frequent vibration process and lead to thermal-insulated effect not good.

Optionally, the inner walls of the first heat insulation cavity and the second heat insulation cavity are both provided with silencing coatings.

Through adopting above-mentioned technical scheme, set up and inhale the sound coating and can play the effect of making an uproar amortization of making an uproar when the bellows is flowed through to gas.

Optionally, the end of the exhaust pipe is provided with an annular convex part, and the annular convex part is provided with a clamp.

Through adopting above-mentioned technical scheme, adopt the clamp to be connected the tip of blast pipe and outside trachea and replace the welded mode commonly used, prevent to lead to damaging under the violent vibrations of engine.

Optionally, two filtering components are arranged in the air outlet pipe, and the two filtering components are an oil mist filtering net and an active carbon filtering layer respectively.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the heat insulation shell is sleeved outside the corrugated pipe and is detachably connected with the corrugated pipe, so that the temperature around the exhaust pipe can be reduced, the damage of surrounding components caused by overhigh temperature can be prevented, and the later-stage maintenance can be facilitated by the detachable connection mode;

2. the inserting block and the inserting groove are respectively arranged on the heat insulation cavity, and the structure can prevent the heat insulation effect from being poor due to the deviation of the first heat insulation cavity and the second heat insulation cavity in the frequent vibration process;

3. the sound absorption coating can play a role in reducing noise and eliminating noise when gas flows through the corrugated pipe;

4. the end part of the exhaust pipe is connected with the external air pipe by the hoop to replace a common welding mode, so that damage caused by violent vibration of the engine is prevented.

Drawings

Fig. 1 is an overall schematic view of a structure of an exhaust pipe assembly for an automobile.

Fig. 2 is an exploded view of a structure of an exhaust pipe assembly for an automobile.

Description of reference numerals: 1. an air inlet pipe; 11. an annular protrusion; 2. a bellows; 3. an air outlet pipe; 4. A thermally insulating shell; 41. a first heat insulation cavity; 42. a second heat insulation cavity; 411. a connecting portion; 422. a heat insulating part; 433. Inserting a block; 444. a slot; 455. a sound-deadening coating; 5. clamping a hoop; 6. hooping; 7. an oil mist filter screen; 8. an active carbon filter layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Further, "a number" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The embodiment of the application discloses an exhaust pipe assembly structure for an automobile. Referring to fig. 1-2, an exhaust pipe assembly structure for an automobile includes an intake pipe 1, a bellows 2 and an exhaust pipe 3, the intake pipe 1 and the exhaust pipe 3 are respectively connected to both ends of the bellows 2, a heat insulation case 4 is sleeved outside the bellows 2, the heat insulation case 4 is arranged to well reduce the temperature around the exhaust pipe and prevent damage to surrounding sensor assemblies, the heat insulation case 4 and the bellows 2 are detachably connected, the detachably connected heat insulation case 4 can facilitate later-stage maintenance, and operation flexibility is improved, the heat insulation case 4 includes a first heat insulation chamber 41 and a second heat insulation chamber 42, the first heat insulation chamber 41 and the second heat insulation chamber 42 have the same size and shape, the first heat insulation chamber 41 includes two sets of connecting portions 411 and 422, the two sets of connecting portions 411 are arranged at both ends of the heat insulation portion 422, the connecting portions 411 and the heat insulation portion 422 are integrally formed, the cross section of the connecting portions 411 is semicircular, the diameter of the inner wall of the connecting part 411 is the same as that of the outer wall of the exhaust pipe, similarly, the diameter of the inner wall of the connecting part 411 is the same as that of the outer wall of the exhaust pipe 3, the side wall of the first heat insulation cavity 41 is provided with an insert block 433, the side wall of the second heat insulation cavity 42 is correspondingly provided with a slot 444, the insert block 433 is inserted into the slot 444, the structure can prevent the first heat insulation cavity 41 and the second heat insulation cavity 42 from deviating in the frequent vibration process to cause poor heat insulation effect, the connecting parts 411 of the first heat insulation cavity 41 and the second heat insulation cavity 42 are butted together and coated on the outer walls of the exhaust pipe and the exhaust pipe 3, the connecting parts 411 at the two ends are provided with anchor ears 6, the fixing of the heat insulation shell 4 can be formed through the tightening of the hoop 6, the first heat insulation cavity 41 and the second heat insulation cavity 42 are both provided with the silencing coating 455, and the silencing coating 455 can absorb noise generated when gas passes through the corrugated pipe 2, so that the noise reduction effect is achieved.

Referring to fig. 2, the end of the exhaust pipe is provided with an annular convex part 11, the annular convex part 11 is provided with a clamp 5, the clamp 5 can be connected with other external air pipes, the clamp 5 is adopted to connect the end of the exhaust pipe with the external air pipes to replace a common welding mode, and damage caused by severe vibration of an engine is prevented.

Referring to fig. 2, two filter components are arranged in the outlet pipe 3, the two filter components are an oil mist filter screen 7 and an active carbon filter layer 8 respectively, the oil mist filter screen 7 is arranged to absorb oil mist in the gas and intercept solid particles in the gas, and the active carbon filter layer 8 is arranged to further process pollution impurities in the gas.

The implementation principle of an exhaust pipe component structure for an automobile in the embodiment of the application is as follows: establish thermal-insulated shell 4 at bellows 2 outside cover, temperature around the reduction blast pipe that can be fine, prevent to cause the damage to sensor unit on every side, the inner wall in thermal-insulated chamber one 41 and thermal-insulated chamber two 42 all is provided with amortization coating 455, when the bellows 2 of gas flow through, can play the effect of the amortization of making an uproar of falling, it is provided with slot 444 to correspond on the lateral wall in thermal-insulated chamber two 42, inserted block 433 pegs graft in slot 444, this kind of structure can prevent to take place the skew at thermal-insulated chamber one 41 and thermal-insulated chamber two 42 in frequent vibration process and lead to thermal-insulated effect not good, adopt clamp 5 to be connected the tip of blast pipe and outside trachea and replace the welded mode commonly used, prevent to lead to damaging under the violent vibrations of engine.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (6)

1. An exhaust pipe assembly structure for an automobile, characterized in that: including intake pipe (1), bellows (2) and outlet duct (3), the both ends of bellows (2) are connected respectively intake pipe (1) with outlet duct (3), bellows (2) overcoat is equipped with thermal-insulated shell (4), thermal-insulated shell (4) with bellows (2) set up to dismantle the connection.

2. An exhaust pipe assembly structure for an automobile according to claim 1, wherein: thermal-insulated shell (4) are including thermal-insulated chamber one (41) and thermal-insulated chamber two (42), thermal-insulated chamber one (41) is the same with the big or small shape in thermal-insulated chamber two (42), thermal-insulated chamber one (41) includes two sets of connecting portion (411) and thermal-insulated portion (422), and is two sets of connecting portion (411) set up the both ends in thermal-insulated portion (422), connecting portion (411) with thermal-insulated portion (422) set up to integrated into one piece, the cross section of connecting portion (411) is semi-circular, the diameter of connecting portion (411) inner wall with the diameter of blast pipe outer wall is the same, the diameter of connecting portion (411) inner wall with the diameter of blast pipe (3) outer wall is the same, be provided with staple bolt (6) on connecting portion (411).

3. An exhaust pipe assembly structure for an automobile according to claim 2, wherein: an inserting block (433) is arranged on the side wall of the first heat insulation cavity (41), an inserting groove (444) is correspondingly arranged on the side wall of the second heat insulation cavity (42), and the inserting block (433) is inserted into the inserting groove (444).

4. An exhaust pipe assembly structure for an automobile according to claim 3, wherein: and sound-deadening coatings (455) are arranged on the inner walls of the first heat insulation cavity (41) and the second heat insulation cavity (42).

5. An exhaust pipe assembly structure for an automobile according to claim 1, wherein: the tip of blast pipe is provided with annular convex part (11), be provided with clamp (5) on annular convex part (11).

6. An exhaust pipe assembly structure for an automobile according to claim 1, wherein: two filtering parts are arranged in the air outlet pipe (3), and the two filtering parts are an oil mist filtering net (7) and an active carbon filtering layer (8) respectively.

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