CN210068293U

CN210068293U - Improved automobile exhaust manifold

Info

Publication number: CN210068293U
Application number: CN201920805151.2U
Authority: CN
Inventors: 赖强敏
Original assignee: NINGBO NEW HUATAI PLASTICS ELECTRIC APPLIANCE Co Ltd
Current assignee: NINGBO NEW HUATAI PLASTICS ELECTRIC APPLIANCE Co Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-02-14
Anticipated expiration: 2029-05-30

Abstract

The utility model relates to an improved automobile exhaust manifold, which comprises a pipeline body, wherein one end of the pipeline body is connected with an engine through a flange plate, one end of the pipeline body is provided with an outward flange, a first convex ring is formed on the flange outer edge along the direction of the pipeline body wall, a groove matched with the first convex ring is formed at the lower end of the flange plate, a part of the flange plate positioned at the inner side of the groove forms a second convex ring, the second convex ring is arranged between the first convex ring and the pipeline body wall, and a first gasket is arranged between the lower end of the second convex ring and the upper side of the flange at the corresponding position; the lower terminal surface and the turn-ups downside of flange board are in the coplanar, be provided with the second gasket under the flange board on the terminal surface, terminal surface and turn-ups downside under the second gasket covered flange board, second gasket upper surface shaping has annular card strip, the shaping has under the flange board on the terminal surface with card strip assorted draw-in groove. By adopting the design, the shaking of the exhaust manifold can be reduced, the looseness can be prevented, and the service life can be prolonged.

Description

Improved automobile exhaust manifold

Technical Field

The utility model relates to the field of automotive technology, concretely relates to modified automobile exhaust manifold.

Background

The pipeline body and the flange plate of the existing exhaust manifold generally adopt an integrated molding design, and under the condition of long-term use, the joint of the exhaust manifold and the pipeline joint of the engine is easy to loosen due to the influences of bumping and vibration during automobile running, high temperature of the engine and other reasons, so that partial gas is leaked, gas is not discharged easily, and the normal operation of an exhaust system is influenced.

Accordingly, there is a need for an improved exhaust manifold for an automobile that addresses the deficiencies in the prior art discussed above.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide an improved exhaust manifold for a vehicle having a function of preventing loosening.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an improved automotive exhaust manifold, characterized by: the pipeline comprises a pipeline body, wherein one end of the pipeline body is connected with an engine through a flange plate, one end of the pipeline body is provided with an outward flange, a first convex ring is formed on the outer edge of the flange along the wall direction of the pipeline body, a groove matched with the first convex ring is formed at the lower end of the flange plate, the first convex ring is arranged in the groove, a second convex ring is formed at the part of the flange plate, which is positioned at the inner side of the groove, the second convex ring is arranged between the first convex ring and the wall of the pipeline body, and a first gasket is arranged between the lower end of the second convex ring and the upper side of the flange at the corresponding position; the lower terminal surface and the turn-ups downside of flange board are in the coplanar, be provided with the second gasket under the flange board on the terminal surface, terminal surface and turn-ups downside under the second gasket covers the flange board, second gasket upper surface shaping has annular card strip, the shaping has the draw-in groove of establishing the card strip with the card under the flange board on the terminal surface.

Furthermore, a plurality of fixing supports are arranged on the pipeline body and connected with the corresponding positions of the engine. By adopting the design, the pipeline body can be further fixed, and the shaking is reduced.

Furthermore, the other end of the pipeline body is connected with a corrugated pipe, a connecting plate is arranged at the end part, far away from the pipeline body, of the corrugated pipe, and a third gasket is arranged on the connecting plate. With this design, the end of the exhaust manifold can be cushioned to prevent loosening.

Furthermore, a three-way catalytic device is further arranged on the pipeline body, and the three-way catalytic device is detachably connected with the pipeline body. This facilitates replacement of the three-way catalyst device.

Furthermore, the flange plate is fixedly connected with the engine through a screw rod, and the number of the screw rods is 3, and the screw rods are uniformly distributed in the circumferential direction of the flange plate.

Compared with the prior art, the utility model has the advantages of it is following: the flange plate and the pipeline body are connected in a buckling mode, and the first gasket and the second gasket are arranged, so that due to the buffering function of the gaskets, when the engine vibrates, the exhaust manifold can be well buffered, and the exhaust manifold is prevented from loosening; the pipeline body is provided with the plurality of fixing supports, so that the pipeline body can be further fixed, and the shaking is reduced; the third gasket is arranged on the connecting plate at the other end of the pipeline body, so that the corresponding end of the exhaust manifold can be buffered, and looseness is prevented.

Drawings

FIG. 1 is a schematic view of an overall structure of an exhaust manifold of an automobile according to a preferred embodiment of the present invention;

fig. 2 is a schematic view of a connection structure between the pipe body and the flange plate in fig. 1.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the terms of orientation and positional relationship indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of protection of the present invention.

As shown in fig. 1 to 2, the structural schematic diagram of a preferred embodiment of the present invention is that, as shown in the drawing, the exhaust manifold of the vehicle includes a pipe body 1, one end of the pipe body 1 is connected to an engine (not shown in the drawing) through a flange plate 2, one end of the pipe body 1 is provided with an outward flange 11, the outer edge of the flange 11 is formed with a first convex ring 12 along the direction of the pipe body wall, the lower end of the flange plate 2 is formed with a groove 21 matching with the first convex ring 12, the first convex ring 12 is disposed in the groove 21, the part of the flange plate 2 located inside the groove 21 forms a second convex ring 22, the second convex ring 22 is disposed between the first convex ring 12 and the pipe body wall, and a first gasket 3 is disposed between the lower end of the second convex ring 22 and the upper side of the flange 11 at the corresponding position; the lower terminal surface and 11 downside of turn-ups of flange board 2 are in the coplanar, be provided with second gasket 4 under the flange board 2 on the terminal surface, terminal surface and 11 downside of turn-ups under the flange board 2 are covered to second gasket 4, 4 last surface forming of second gasket have annular card strip 41, flange board 2 down the terminal surface on the shaping have with the card establish card strip 41's draw-in groove 23.

Adopt this kind of design, because flange plate 2 is not rigid connection with the corresponding end of the pipeline body 1, when the engine vibrates, because, first gasket 3 can play fine cushioning effect of stepping down to exhaust manifold, avoid exhaust manifold vibration and make flange plate 2 not hard up, in addition the cushioning effect of second gasket 4, make exhaust manifold obtain fine buffering, it is not hard up to further prevent that exhaust manifold from driving flange plate 2, second gasket 4 sets up card strip 41 and fixes with draw-in groove 23 joint on the flange plate 2 simultaneously, can carry out fine sealing, thereby ensure that exhaust system normally works.

In this embodiment, the pipeline body 1 is provided with a plurality of fixing brackets 13, and the fixing brackets 13 are connected with the corresponding positions of the engine. Set up a plurality of fixed bolsters 13 on the pipeline body 1, can further fix the pipeline body 1, reduce and rock, increase exhaust manifold's steadiness.

In this embodiment, the other end of the pipeline body 1 is connected with a corrugated pipe 5, a connecting plate 6 is arranged at the end part of the corrugated pipe 5 far away from the pipeline body 1, and a third gasket 7 is arranged on the connecting plate 6. A third gasket 7 is arranged on the connecting plate 6 and can provide buffering for the end of the exhaust manifold to prevent looseness.

In this embodiment, still be provided with three way catalyst device 8 on the pipeline body, three way catalyst device 8 can dismantle with pipeline body 1 and be connected, for example adopt modes such as threaded connection. Therefore, after the catalyst in the three-way catalytic device 8 is invalid, the catalyst can be conveniently replaced without integrally replacing the exhaust manifold, and the cost is saved.

In this embodiment, the flange plate 2 is fixedly connected with the engine through the screw rods 9, and the number of the screw rods 9 is 3 and the screw rods are uniformly distributed in the circumferential direction of the flange plate 2.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An improved automotive exhaust manifold, characterized by: the engine oil pipe comprises a pipe body, wherein one end of the pipe body is connected with an engine through a flange plate, one end of the pipe body is provided with an outward flange, the outer edge of the flange is provided with a first convex ring along the wall direction of the pipe body, the lower end of the flange plate is provided with a groove matched with the first convex ring, and the first convex ring is arranged in the groove; a second convex ring is formed at the part of the flange plate, which is positioned at the inner side of the groove, the second convex ring is arranged between the first convex ring and the wall of the pipeline body, and a first gasket is arranged between the lower end of the second convex ring and the upper side of the flanging at the corresponding position; the lower terminal surface and the turn-ups downside of flange board are in the coplanar, be provided with the second gasket under the flange board on the terminal surface, terminal surface and turn-ups downside under the second gasket covers the flange board, second gasket upper surface shaping has annular card strip, the shaping has the draw-in groove of establishing the card strip with the card under the flange board on the terminal surface.

2. The automotive exhaust manifold according to claim 1, characterized in that: the pipeline body is provided with a plurality of fixed brackets, and the fixed brackets are connected with the corresponding positions of the engine.

3. The automotive exhaust manifold according to claim 2, characterized in that: the other end of the pipeline body is connected with a corrugated pipe, a connecting plate is arranged at the end part, far away from the pipeline body, of the corrugated pipe, and a third gasket is arranged on the connecting plate.

4. The automotive exhaust manifold according to claim 1, characterized in that: the pipeline body is also provided with a three-way catalytic device, and the three-way catalytic device is detachably connected with the pipeline body.

5. The automotive exhaust manifold according to claim 1, characterized in that: the flange plate is fixedly connected with the engine through a screw rod, and the number of the screw rods is 3, and the screw rods are uniformly distributed in the circumferential direction of the flange plate.