Split-flow mechanism for double-outlet tail pipe and decorative tail pipe assembly with split-flow mechanism

Abstract

The utility model relates to the field of exhaust systems, in particular to a shunting mechanism for a double-outlet tail pipe and a decorative tail pipe assembly with the shunting mechanism. Comprising a flow dividing partition plate, and the flow dividing partition plate comprises two single plates which are distributed in a crossed mode; one ends of the two single plates are attached to each other, and the other ends freely extend; through the arrangement of the shunting mechanism, tail gas flowing out of the gas inlet pipe can be shunted, it is guaranteed as far as possible that the amount of the tail gas subsequently entering the two decorative tail pipes is basically the same, it is guaranteed as far as possible that the service life of the two decorative tail pipes is the same, and the problem of rapid aging caused by too large gas inflow of a single decorative tail pipe is solved.

Description

Technical Field

[0001] The utility model relates to the field of exhaust systems, and in particular to a flow splitting mechanism for a double - outlet tail pipe and a decorative tail pipe assembly with the flow splitting mechanism. Background Art

[0002] The muffler assembly of an automobile exhaust system mainly includes an intake end, a hook, a muffler package, and an outlet end, wherein the outlet end is divided into an exhaust pipe and a decorative tail pipe assembly.

[0003] The emergence of decorative tail pipes (single - outlet on the same side, double - outlet on the same side, single - outlet on both sides, four - outlet on both sides) has solved the problem of monotonous layout form of automobile tail pipes. The decorative tail pipe generally adopts a larger inner liner opening to ensure smooth outflow of exhaust gas, has lower exhaust noise and back pressure, and can effectively improve the exhaust noise of the whole vehicle.

[0004] When there are multiple decorative tail pipes on the traditional single side, for example, when there are two decorative tail pipes, a tee pipe is generally selected for bridging. Due to the limitations of its own structure, the traditional tee pipe will cause different gas outlet volumes of the two decorative tail pipes. Under this working condition for a long time, the service lives of the two decorative tail pipes are inconsistent; for the decorative tail pipe with continuous multiple gas outlets, its service life will be significantly reduced.

[0005] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the design of the existing exhaust structure.

[0006] The existing patent 201611264902.1 - Automobile tee exhaust tail pipe and its manufacturing method does not clearly solve the technical content of the above - mentioned technical problems. Summary of the Utility Model

[0007] The purpose of the utility model is to provide a flow splitting mechanism that can ensure that the gas outlet volumes of two decorative tail pipes connected by a tee pipe are as the same as possible.

[0008] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0009] A flow splitting mechanism for a double - outlet tail pipe; including a flow splitting partition board, the flow splitting partition board includes two single - body boards, and the two single - body boards are distributed in an intersecting manner; one ends of the two single - body boards are mutually attached, and the other ends freely extend.

[0010] Each single - body board includes a base board and a flow guiding board; the base boards in the two single - body boards are mutually attached, and the flow guiding boards in the two single - body boards freely extend.

[0011] The flow guiding board is an arc - shaped board.

[0012] The base boards in the two single - body boards are mutually attached; the arc degrees of the flow guiding boards in adjacent single - body boards are different.

[0013] The end of each single plate is an arc surface; after two single plates are fitted together, a semi-circular arc surface is formed at the ends of the single plates that are in contact with each other.

[0014] A decorative tail pipe assembly includes an intake pipe; the intake pipe is connected with two decorative tail pipes through a tee pipe; a flow splitting mechanism is arranged in the tee pipe;

[0015] One end of the flow splitting mechanism is arranged at one end of the tee pipe close to the intake pipe, and the other end extends to one side of the two decorative tail pipes through two single plates respectively.

[0016] The tee pipe includes an upper flap of the tee pipe and a lower flap of the tee pipe; the upper flap of the tee pipe and the lower flap of the tee pipe are arranged oppositely; the flow splitting mechanism extends from the upper flap of the tee pipe to the lower flap of the tee pipe.

[0017] One side of the flow splitting partition is connected with the upper flap of the tee pipe, and the other end is spaced from the lower flap of the tee pipe.

[0018] The flow splitting partition is arranged in the vehicle's Z direction.

[0019] The tee pipe is sleeved on the intake pipe; the flow splitting partition presses against the end of the intake pipe.

[0020] The advantages of the present utility model are as follows:

[0021] The present utility model discloses a flow splitting mechanism for a double - outlet tail pipe and a decorative tail pipe assembly with the flow splitting mechanism.

[0022] The present utility model discloses that through the setting of the flow splitting mechanism, the tail gas flowing out from the intake pipe can be split, so as to ensure that the amount of tail gas entering the two decorative tail pipes subsequently is basically the same as much as possible, and to ensure that the service lives of the two decorative tail pipes are consistent as much as possible, avoiding the problem of rapid aging due to excessive intake of a single decorative tail pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following briefly describes the content expressed by each drawing of the specification of the present utility model and the marks in the drawings:

[0024] Figure 1 This is the first axonometric drawing of the present utility model.

[0025] Figure 2 This is the second axonometric drawing of the present utility model.

[0026] Figure 3 This is the structural schematic diagram of the present utility model.

[0027] Figure 4 This is the structural schematic diagram of the present utility model with the upper flap of the tee pipe removed.

[0028] Figure 5This is the front view of the deflector plate when installed on the tee pipe in the present utility model.

[0029] The markings in the above figures are all:

[0030] 1-1, shunt mechanism, 1, shunt partition, 11 monomer plates, 111, substrate, 112, deflector plate, 2, connecting pipe, 3, tee pipe, 4, decorative tail pipe. Specific embodiments

[0031] The following is a further detailed description of the specific embodiments of the present utility model by describing the optimal embodiments with reference to the accompanying drawings.

[0032] A shunt mechanism for a double - outlet tail pipe; including a shunt partition 1, the shunt partition 1 includes two monomer plates 11, and the two monomer plates 11 are distributed intersectingly; one ends of the two monomer plates 11 are mutually attached, and the other ends extend freely; the present utility model discloses that through the setting of the shunt mechanism 1-1, the tail gas flowing out from the intake pipe 2 can be shunted, so as to ensure that the amount of tail gas entering the two decorative tail pipes 4 is basically the same as much as possible, and to ensure that the service lives of the two decorative tail pipes 4 are the same as much as possible, avoiding the problem of rapid aging due to excessive intake air volume in a single decorative tail pipe 4.

[0033] The shunt mechanism 1-1 disclosed in the present utility model is mainly applicable to automobile tail pipes, and is applicable to the automobile tail pipe assembly with double - outlet tail pipes on one side of the whole vehicle.

[0034] Through the setting of the shunt mechanism 1-1 in the present utility model, it can be ensured that the exhaust gas output of the two decorative tail pipes 4 is as consistent as possible, so that the service lives of the two decorative tail pipes 4 can be as consistent as possible, avoiding the problem of accelerated aging due to excessive intake air volume in a single decorative tail pipe 4.

[0035] In the present utility model, the shunt mechanism 1-1 mainly includes a shunt partition 1. The shunt partition 1 mainly plays a role of partitioning. During subsequent use, the shunt partition 1 plays a blocking role, facilitating the division of the air flow entering from the intake pipe 2, so as to realize the shunting of the subsequent intake air flow, and enabling the shunted tail gas to be discharged from the corresponding decorative tail pipe 4.

[0036] In addition, in the present utility model, the flow dividing partition plate 1 includes two single plates 11 which intersect and are distributed; one ends of the two single plates 11 are mutually attached, and the other ends freely extend; the arrangement of the two single plates 11 facilitates the dividing operation of the flow dividing partition plate 1. Because in actual use, the tee pipe 3 connected to the air inlet pipe 2 of the present utility model is not a regular tee pipe 3 structure, but has a certain inclination, as shown in the attached drawing; when using a traditional single plate for division, it is easy to form a flow-blocking vortex in the tee pipe 3, affecting the exhaust efficiency of the tail gas; by separately performing the dividing operation with the two single plates 11 in the present utility model, the direction of the tail gas can be better controlled, and the external exhaust operation of the tail gas can be better realized.

[0037] Furthermore, in the present utility model, each single plate 11 includes a base plate 111 and a flow guiding plate 112; the base plates 111 in the two single plates 11 are mutually attached, and the flow guiding plates 112 in the two single plates 11 freely extend; in the present utility model, the base plate 111 is a connecting plate, which facilitates the connection between the two single plates 11, and the flow guiding plate 112 mainly plays a role of flow guiding and dividing subsequently.

[0038] Furthermore, in the present utility model, the flow guiding plate 112 is an arc-shaped plate; through the design of the arc-shaped flow guiding plate 112 in the present utility model, the direction of the tail gas can be better controlled. At the same time, since the flow guiding plate 112 is an arc-shaped plate, the flow guiding plate 112 can be arranged based on the directions of the respective through holes of the tee pipe 3 to optimize the flow guiding effect of the flow guiding plate 112.

[0039] Furthermore, in the present utility model, the base plates 111 in the two single plates 11 are mutually attached; such an arrangement facilitates the placement of the two single plates 11. In the present utility model, the two single plates 11 can be integrally formed, or can be separately processed and then connected by welding; the mutual attachment arrangement of the single plates 11 can reduce the space occupied by the ends of the two single plates 11, and reduce the blockage of the flow dividing partition plate to the internal and external exhaust of the tail gas of the air inlet pipe 2; at the same time, in the present utility model, the arcs of the flow guiding plates 112 in the adjacent single plates 11 are different; such an arrangement can make the flow guiding plates 112 in the two single plates 11 be spaced apart, facilitating subsequent extension to the other two through holes of the tee pipe 3 except the air inlet through hole; better realizing the guiding and dividing of the tail gas.

[0040] Furthermore, in the present utility model, the end of each single plate 11 is an arc-shaped surface; after the two single plates 11 are attached, a semi-circular arc-shaped surface is formed at the end of the mutually attached single plates 11; based on such an arrangement, the edges of the flow dividing partition plate can be reduced, and the existence of the edges of the flow dividing partition plate can be reduced so that the flow dividing partition plate affects the exhaust operation of the air inlet pipe 2 into the tee pipe 3; based on the above design, the end of the flow dividing partition plate of the present utility model is arc-shaped, which can reduce the resistance of the tail gas operation while having a flow dividing effect.

[0041] A decorative tail pipe assembly includes an intake pipe 2; the intake pipe 2 is connected with two decorative tail pipes 4 through a tee pipe 3; a flow splitting mechanism 1-1 is arranged in the tee pipe 3; one end of the flow splitting mechanism 1-1 is arranged at one end of the tee pipe 3 close to the intake pipe 2, and the other end extends towards one side of each of the two decorative tail pipes 4 through two single plates 11 respectively; the present utility model discloses that through the arrangement of the flow splitting mechanism 1-1, the tail gas flowing out of the intake pipe 2 can be split, so as to ensure that the amount of tail gas entering the two decorative tail pipes 4 subsequently is basically the same as much as possible, and to ensure that the service lives of the two decorative tail pipes 4 are consistent as much as possible, and to avoid the problem of rapid aging due to excessive intake of a single decorative tail pipe 4.

[0042] During actual use, the tail gas enters the tee pipe 3 through the intake pipe 2, and the tail gas entering the tee pipe 3 is then discharged outside through the connected decorative tail pipe 4.

[0043] Further, in the present utility model, the tee pipe 3 includes an upper flap 31 of the tee pipe and a lower flap 32 of the tee pipe; the upper flap 31 of the tee pipe and the lower flap 32 of the tee pipe are arranged oppositely; in the present utility model, both the upper flap 31 of the tee pipe and the lower flap 32 of the tee pipe are arc-shaped plate members, and subsequently, an internally hollow chamber is formed by the relative assembly of the upper flap 31 of the tee pipe and the lower flap 32 of the tee pipe. Due to the split design of the tee pipe 3 of the present utility model with the upper flap 31 of the tee pipe and the lower flap 32 of the tee pipe, the assembly and production of the tee pipe 3 are facilitated. At the same time, the connection between the tee pipe 3 and the flow splitting mechanism 1-1 is also facilitated; at the same time, in the present utility model, the flow splitting mechanism 1-1 extends from the upper flap 31 of the tee pipe towards the lower flap 32 of the tee pipe; the flow splitting partition 1 is arranged longitudinally in the vehicle body in the Z direction; such an arrangement can realize the longitudinal division and zoning in the middle of the tee pipe 3, facilitating the consistency of the amount of tail gas discharged from the two decorative tail pipes 4 when the subsequent tail gas is discharged.

[0044] Further, in the present utility model, one side of the flow splitting partition 1 is connected to the upper flap 31 of the tee pipe, and the other end is spaced from the lower flap 32 of the tee pipe; based on such an arrangement, while achieving blocking and splitting, it can also avoid the fracture or welding opening of the flow splitting partition 1 caused by the temperature difference deformation of the flow splitting partition 1.

[0045] Meanwhile, in the present utility model, the tee pipe 3 is sleeved on the intake pipe 2; the shunt partition plate 1 is pressed against the end of the intake pipe 2; the intake pipe 2 is inserted into the tee pipe 3 in a way that the intake pipe 2 has a certain thickness, thus forming a stepped platform. Based on such an arrangement, the shunt partition plate 1 is pressed against the end of the intake pipe 2, which facilitates the limitation of the assembly position of the intake pipe 2 and the tee pipe 3; at the same time, the shunt partition plate 1 directly presses against the end of the intake pipe 2. Generally, it is required that the shunt partition plate 1 is arranged along the diameter direction of the intake pipe 2. Such a setting enables the direct contact between the air outlet of the intake pipe 2 and the shunt partition plate 1, which can better achieve the shunt of the tail gas and ensure the uniformity of the shunted tail gas.

[0046] Specifically:

[0047] In the present utility model, the tail gas airflow enters the tee pipe 3 through the intake pipe 2. The air flow is divided into two parts in the tee pipe 3 by using the diversion partition plate, and at the same time, the air flow is blocked and reflected to the two decorative tail pipes 4 by using the shape of the diversion partition plate, so as to evenly distribute the air flow to the two decorative tail pipes 4; as much as possible, the air output of the two outlets of the decorative tail pipe assembly is made consistent.

[0048] The tee pipe 3 includes an upper flap 31 of the tee pipe and a lower flap 32 of the tee pipe; a diversion mechanism is provided inside the tee pipe 3; the upper flap 31 of the tee pipe, the lower flap 32 of the tee pipe and the diversion mechanism are welded together. During the high-temperature operation of the upper flap 31 and the lower flap 32 of the tee pipe, temperature difference deformation (thermal stress release phenomenon) will occur; the diversion partition plate, as an internal shunt, will also change with the temperature difference. To avoid the fracture or welding opening of the diversion partition plate caused by the temperature difference deformation of the three parts at the same time, it is designed that the diversion partition plate is only welded to the upper flap 31 of the tee pipe, and a gap of about 3 mm is left between the diversion partition plate and the lower flap 32 of the tee pipe to leave a space for avoiding the temperature difference deformation.

[0049] Based on the above design, the present utility model has the following technical effects:

[0050] 1. It can ensure that the air output of multiple decorative tail pipes 4 is basically the same in the case of multiple decorative tail pipes 4.

[0051] 2. The diversion partition plate has low cost, simple structure and easy operation, and can perfectly solve the problem of inconsistent air output of the decorative tail pipe assembly with two outlets on one side or four outlets on both sides of the exhaust system.

[0052] Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present utility model, they are all within the protection scope of the present utility model.

Claims

1. A flow splitter mechanism for a dual-outlet tail pipe; characterized in that: The utility model comprises a flow dividing partition plate, wherein the flow dividing partition plate comprises two monomer plates, and the two monomer plates are intersectingly distributed; one end of the two monomer plates is mutually attached, and the other end is freely extended.

2. A flow splitter mechanism for a dual-outlet tail pipe according to claim 1, characterized in that: Each monomer plate includes a base plate and a guide plate; the base plates in the two monomer plates are attached to each other, and the guide plates in the two monomer plates extend freely.

3. A flow splitting mechanism for a dual-outlet tail pipe according to claim 2, characterized in that: The guide plate is an arc-shaped plate.

4. A flow splitting mechanism for a dual-outlet tail pipe according to claim 3, characterized in that: The base plates in the two single plates are attached to each other; the curvatures of the guide plates in the adjacent single plates are different.

5. A flow splitting mechanism for a dual-outlet tail pipe according to claim 1, characterized in that: Each end of the monomer plate is an arc-shaped surface; after the two monomer plates are bonded together, a semicircular arc-shaped surface is formed at the ends of the bonded monomer plates.

6. A decorative tail pipe assembly, characterized in that: It includes an intake pipe; the intake pipe is connected to two decorative tail pipes through a three-way pipe; the three-way pipe is provided with a diversion mechanism as described in any one of claims 1 to 5; one end of the diversion mechanism is arranged at one end of the three-way pipe close to the intake pipe, and the other end extends to one side of the two decorative tail pipes through two single plates.

7. A decorative tail pipe assembly according to claim 6, characterized in that: The tee comprises an upper tee petal and a lower tee petal; the upper tee petal and the lower tee petal are arranged opposite to each other; and the flow diversion mechanism extends from the upper tee petal to the lower tee petal.

8. A decorative tail pipe assembly according to claim 7, characterized in that: One side of the flow dividing baffle is connected to the upper petal of the tee pipe, and the other end is spaced apart from the lower petal of the tee pipe.

9. A decorative tail pipe assembly according to claim 7, characterized in that: The diverter baffle is arranged in the Z direction of the whole vehicle.

10. The decorative tail pipe assembly according to claim 7, characterized in that: The three-way pipe is sleeved on the air inlet pipe; the flow dividing baffle is pressed against the end of the air inlet pipe.

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