Automobile engine exhaust pipe

Abstract

The utility model provides an automobile engine exhaust pipe which comprises a tail throat, a lifting lug support, an exhaust tail pipe and a heat dissipation mechanism, the tail throat is fixed on the front side of the exhaust tail pipe, the lifting lug support is installed above the exhaust tail pipe, the exhaust tail pipe is installed on one side of the heat dissipation mechanism through connection of a flange plate, and the other side of the heat dissipation mechanism is fixed on the rear side of the tail throat. According to the double exhaust pipelines, the left connecting pipe in the left exhaust pipe is an L-shaped pipe, the right-angle position of the L-shaped pipe is provided with an arc transition to reduce flow resistance, the right exhaust pipe is an I-shaped straight pipe, and the left exhaust pipe and the right exhaust pipe are matched, so that the double exhaust pipelines are achieved, and the heat dissipation efficiency is improved. The number of overall bent pipes is small, resistance of an exhaust system is reduced, the size is smaller, the silencer is arranged close to the right side below the floor, and the arrangement space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile engines, in particular to an automobile engine exhaust pipe. Background Art

[0002] Automobile exhaust bellows, also known as automobile exhaust pipe hose, is installed in the exhaust pipe between the engine exhaust branch pipe and the muffler, making the entire exhaust system flexibly connected, thereby reducing vibration and noise, facilitating installation and extending the life of the exhaust muffler system. It is mainly used in light vehicles, micro vehicles and buses. Its structure is a double-layer bellows covered with a steel mesh sleeve, and the straight edge sections at both ends are covered with a clamping ring. In order to achieve a better muffler effect, the bellows can be equipped with an expansion joint or a mesh sleeve. Material: The main material is stainless steel SUS304, and the ferrule and pipe can be made of stainless steel or aluminum-plated steel.

[0003] In the existing technology, there are various designs of automobile exhaust pipes, but most of them are similar. During the driving of the car, the exhaust gas and the heat emitted can easily cause damage to the equipment. The use of straight pipes and double pipes cannot reduce the resistance of the exhaust system, and the volume is larger. The use of the equipment cannot effectively avoid the transmission system structures such as the gearbox and drive shaft in the middle under the floor, and there is a risk of unsmooth heat dissipation, and the fixed type may also cause unnecessary troubles. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide an automobile engine exhaust pipe to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: an automobile engine exhaust pipe, comprising a tail throat, a hanging ear bracket, an exhaust tail pipe, a flange, a left exhaust pipe, a right exhaust pipe and a heat dissipation mechanism, wherein the tail throat is fixed to the front side of the exhaust tail pipe, the hanging ear bracket is installed above the exhaust tail pipe, the exhaust tail pipe is installed on one side of the heat dissipation mechanism through the connection of the flange, and the other side is fixed to the rear side of the tail throat, a plurality of groups of the flanges are arranged on the exhaust tail pipe and the outer sides of the left exhaust pipe and the right exhaust pipe, the left exhaust pipe and the right exhaust pipe are both installed on one side of the heat dissipation mechanism, and the heat dissipation mechanism is fixed to the exhaust tail pipe and the middle of the left exhaust pipe and the right exhaust pipe;

[0006] The heat dissipation mechanism includes a rotating fan, an inner ring, a bidirectional motor, a triangular fixing frame, a wave needle, a connecting column, a main bevel gear and an outer ring, wherein the rotating fan is installed on the outer side of the inner ring, and the inner ring is installed at both ends of the rotating fan and the connecting column through the inside of the bidirectional motor, the bidirectional motor is arranged inside the triangular fixing frame, and multiple groups of the triangular fixing frames are installed on both sides of the bidirectional motor, the wave needle is installed on the outer side of the connecting column, and the connecting column is welded to one side of the inner ring under the action of the inner ring, the main bevel gear is arranged inside the outer ring, and the outer ring is arranged on the outer side of the wave needle and the connecting column;

[0007] The left exhaust pipe includes a left heat insulation cover, a left connecting pipe and a right catalyst. Multiple groups of left heat insulation covers are arranged on the outside of the left connecting pipe. The left connecting pipe is arranged inside the left heat insulation cover and the right catalyst. The right catalyst is installed on the outside of the left connecting pipe and the bottom of the left heat insulation cover. Similarly, all right exhaust pipes are left exhaust pipes.

[0008] Furthermore, the inner diameter of the triangular fixing frame is larger than the diameter of the bidirectional motor, and the inner diameter of the wave needle is larger than the diameter of the connecting column.

[0009] Furthermore, the left connecting pipe is an L-shaped pipe, the right exhaust pipe is an I-shaped straight pipe, and multiple groups of the left heat insulation cover, the left connecting pipe and the left catalyst are connected by flanges.

[0010] Furthermore, the connection of the multiple groups of flanges is fixed by multiple groups of bolts.

[0011] Furthermore, the tail throat is made of stainless steel, and at least two fastening screws are arranged on the tail throat.

[0012] Furthermore, the size of the triangular fixing frame is just enough to be installed inside the shell of the heat dissipation mechanism to fix it.

[0013] By adopting the above technical solution, the beneficial effects of the utility model are:

[0014] The utility model arranges a double exhaust pipe, and the left connecting pipe in the left exhaust pipe is an L-shaped pipe, and the right angle thereof has an arc transition to reduce flow resistance. The right exhaust pipe adopts an I-shaped straight pipe. Through the cooperation of the left exhaust pipe and the right exhaust pipe, the double exhaust pipes are realized, and the overall number of bends is reduced, thereby reducing the resistance of the exhaust system and making the volume smaller. The muffler is arranged on the right side under the floor, saving arrangement space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0016] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the exhaust pipe structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the heat dissipation mechanism of the utility model;

[0019] Figure 4 This is a schematic diagram of the main bevel gear structure of the utility model;

[0020] In the figure: 1-tail throat, 2-lifting ear bracket, 3-exhaust tail pipe, 4-flange, 5-heat dissipation mechanism, 51-rotating fan, 52-inner ring, 53-bidirectional motor, 54-triangular fixing frame, 55-wave needle, 56-connecting column, 57-main bevel gear, 58-outer ring, 6-left exhaust pipe, 61-left heat shield, 62-, left catalyst, 63-left connecting pipe, 7-right exhaust pipe. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figure 1-Figure 4 The utility model provides a technical solution: an automobile engine exhaust pipe, comprising a tail throat 1, a hanging ear bracket 2, an exhaust tail pipe 3, a flange 4, a left exhaust pipe 6, a right exhaust pipe 7 and a heat dissipation mechanism 5, the tail throat 1 is fixed to the front side of the exhaust tail pipe 3, the hanging ear bracket 2 is installed above the exhaust tail pipe 3, the exhaust tail pipe 3 is installed on one side of the heat dissipation mechanism 5 through the connection of the flange 4, and the other side is fixed to the rear side of the tail throat 1, multiple groups of flanges 4 are arranged on the outside of the exhaust tail pipe 3 and the left exhaust pipe 6 and the right exhaust pipe 7, the left exhaust pipe 6 and the right exhaust pipe 7 are both installed on one side of the heat dissipation mechanism 5, and the heat dissipation mechanism 5 is fixed in the middle of the exhaust tail pipe 3 and the left exhaust pipe 6 and the right exhaust pipe 7;

[0023] The heat dissipation mechanism 5 includes a rotating fan 51, an inner ring 52, a bidirectional motor 53, a triangular fixing frame 54, a wave needle 55, a connecting column 56, a main bevel gear 57 and an outer ring 58. The rotating fan 51 is installed on the outer side of the inner ring 52. The inner ring 52 is installed at both ends of the rotating fan 51 and the connecting column 56 through the inside of the bidirectional motor 53. The bidirectional motor 53 is arranged inside the triangular fixing frame 54. Multiple sets of triangular fixing frames 54 are installed on both sides of the bidirectional motor 53. The wave needle 55 is installed on the outer side of the connecting column 56. The connecting column 56 is welded to one side of the inner ring 52 under the action of the inner ring 52. The main bevel gear 57 is arranged inside the outer ring 58. The outer ring 58 is arranged on the outer side of the wave needle 55 and the connecting column 56.

[0024] The left exhaust pipe 6 includes a left heat insulation cover 61, a left connecting pipe 63 and a left catalyst 62. Multiple groups of the left heat insulation covers 61 are arranged on the outside of the left connecting pipe 63. The left connecting pipe 63 is arranged inside the left heat insulation cover 61 and the left catalyst 62. The left catalyst 62 is installed on the outside of the left connecting pipe 63 and the bottom of the left heat insulation cover 61. Similarly, the right exhaust pipe 7 is all the left exhaust pipe 6.

[0025] The inner diameter of the triangular fixing frame 54 is larger than the diameter of the bidirectional motor 53, the inner diameter of the wave needle 55 is larger than the diameter of the connecting column 56, the left exhaust pipe 6 is an L-shaped pipe, the right exhaust pipe 7 is an I-shaped straight pipe, and the multiple groups of left heat insulation covers 61, left connecting pipes 63 and left catalysts 62 are connected by flanges 4, and the connection of the multiple groups of flanges 4 is fixed by multiple groups of bolts, and the number of bolts is not less than three. The tail throat 1 is made of stainless steel, and at least two fastening screws are arranged on the tail throat 1 to adjust the looseness of the tail throat. The size of the triangular fixing frame 54 is just installed inside the outer shell of the heat dissipation mechanism 5 to fix it.

[0026] As an embodiment of the utility model: when in use, the staff fixes the left exhaust pipe 6 and the right exhaust pipe 7 to the bottom of the car. At this time, the exhaust gas of the car will be discharged through the two exhaust pipes, and the exhaust gas enters the left catalyst 62 through the left heat insulation cover 61. Under the action of the left catalyst 62, the exhaust gas passes through the connection port of the flange 4 and the left heat insulation cover 61 again. At this time, the heat of the exhaust gas continues to weaken, and under the action of the left connecting pipe 63, the exhaust gas enters the heat dissipation mechanism 5. The two sets of exhaust pipes have the same principle. The triangular fixing frame 54, the outer ring member 58 and other parts of the heat dissipation mechanism 5 play an auxiliary protection role. The rotating fan 51 is installed on one side of the inner ring member 52. Under the use of the bidirectional motor 53 , which will drive the rotating fan 51 and the connecting column 56, and at the same time drive the wave needle 55 to form a large and a small airflow, and blow the exhaust gas of the car to the exhaust tail pipe 3 through the rotation of the rotating fan 51. The two ends of the exhaust tail pipe 3 are respectively provided with ear brackets 2, and the exhaust tail pipe 3 and the car body are connected and fixed by the ear brackets 2 to prevent falling off. Each connection port is fixed with a flange 4, and each flange 4 is fixed with no less than three sets of bolts, which is more firm. The rotation of the rotating fan 51 is used to dissipate heat to prevent excessive heat from causing damage to the exhaust pipe of the car and the troubles caused by manual repair. In addition, the layout space is large, and the installation and disassembly maintenance are inconvenient.

[0027] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automobile engine exhaust pipe, comprising a tail throat (1), a hanging ear bracket (2), an exhaust tail pipe (3), a flange (4), a left exhaust pipe (6), a right exhaust pipe (7) and a heat dissipation mechanism (5), characterized in that: The tail throat (1) is fixed on the front side of the exhaust tail pipe (3), the ear bracket (2) is installed above the exhaust tail pipe (3), the exhaust tail pipe (3) is installed on one side of the heat dissipation mechanism (5) through the connection of the flange (4), and the other side is fixed on the rear side of the tail throat (1), multiple groups of the flange (4) are arranged on the outside of the exhaust tail pipe (3) and the left exhaust pipe (6) and the right exhaust pipe (7), the left exhaust pipe (6) and the right exhaust pipe (7) are both installed on one side of the heat dissipation mechanism (5), and the heat dissipation mechanism (5) is fixed in the middle of the exhaust tail pipe (3) and the left exhaust pipe (6) and the right exhaust pipe (7); The heat dissipation mechanism (5) comprises a rotating fan (51), an inner ring (52), a bidirectional motor (53), a triangular fixing frame (54), a wave needle (55), a connecting column (56), a main bevel gear (57) and an outer ring (58); the rotating fan (51) is mounted on the outer side of the inner ring (52); the inner ring (52) is mounted on both ends of the rotating fan (51) and the connecting column (56) through the inside of the bidirectional motor (53); the bidirectional motor (53) is arranged inside the triangular fixing frame (54); a plurality of sets of triangular fixing frames (54) are mounted on both sides of the bidirectional motor (53); the wave needle (55) is mounted on the outer side of the connecting column (56); the connecting column (56) is welded to one side of the inner ring (52) under the action of the inner ring (52); the main bevel gear (57) is arranged inside the outer ring (58); and the outer ring (58) is arranged on the outer side of the wave needle (55) and the connecting column (56); The left exhaust pipe (6) comprises a left heat shield (61), a left connecting pipe (63) and a left catalyst (62); a plurality of groups of the left heat shields (61) are arranged on the outside of the left connecting pipe (63); the left connecting pipe (63) is arranged inside the left heat shield (61) and the left catalyst (62); the left catalyst (62) is installed on the outside of the left connecting pipe (63) and on the bottom of the left heat shield (61); similarly, the right exhaust pipe (7) is the left exhaust pipe (6).

2. The automobile engine exhaust pipe according to claim 1, characterized in that: The inner diameter of the triangular fixing frame (54) is larger than the diameter of the bidirectional motor (53), and the inner diameter of the wave needle (55) is larger than the diameter of the connecting column (56).

3. The automobile engine exhaust pipe according to claim 1, characterized in that: The left exhaust pipe (6) is an L-shaped pipe, the right exhaust pipe (7) is an I-shaped straight pipe, and a plurality of groups of the left heat shield (61), the left connecting pipe (63) and the left catalyst (62) are connected via a flange (4).

4. The automobile engine exhaust pipe according to claim 3, characterized in that: The connection of the multiple sets of flanges (4) is fixed by multiple sets of bolts.

5. The automobile engine exhaust pipe according to claim 1, characterized in that: The tail throat (1) is made of stainless steel, and at least two fastening screws are arranged on the tail throat (1).

6. The automobile engine exhaust pipe according to claim 1, characterized in that: The size of the triangular fixing frame (54) is just suitable for being installed inside the outer shell of the heat dissipation mechanism (5) to fix it.

Images