CN210264876U

CN210264876U - Engine exhaust device

Info

Publication number: CN210264876U
Application number: CN201920900830.8U
Authority: CN
Inventors: 黄都好; 陈辉
Original assignee: Xiamen Qihe Autocar Spare Parts Co ltd
Current assignee: Xiamen Qihe Autocar Spare Parts Co ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-04-07
Anticipated expiration: 2029-06-14

Abstract

The utility model provides an engine exhaust apparatus relates to engine exhaust equipment technical field. Wherein, this kind of exhaust apparatus includes: blast pipe, thermal-insulated subassembly and mounting disc. Specifically, the exhaust pipe incorporates an exhaust passage for exhausting gas. The heat insulation assembly comprises a protective layer sleeved on the exhaust pipe, a heat insulation layer clamped between the exhaust pipe and the protective layer, and an annular retainer ring arranged on the exhaust pipe and the protective layer. An annular cavity for containing the heat insulation layer is formed between the protective layer and the exhaust pipe, and the annular retainer ring is used for sealing two ends of the annular cavity. The mounting plate is disposed at an end of the exhaust pipe to mount the exhaust device.

Description

Engine exhaust device

Technical Field

The utility model relates to an engine exhaust equipment technical field particularly, relates to an engine exhaust apparatus.

Background

An engine exhaust is a device used to exhaust an engine.

In the prior art, the exhaust device is only an exhaust pipe which is used for connecting an engine exhaust interface with the outside, and the exhaust pipe needs to pass through or bypass other accessories in the connecting process. Since the exhaust pipe has a high temperature during a long period of time, it is easy to damage the peripheral parts of the exhaust device.

In view of the above, the inventors of the present invention have made a study of the prior art and then have made the present application.

SUMMERY OF THE UTILITY MODEL

The utility model provides an engine exhaust apparatus aims at improving prior art, and engine exhaust apparatus can lead to the problem that the peripheral spare part of exhaust apparatus damaged because of the high temperature.

In order to solve the technical problem, the utility model provides an engine exhaust device contains:

an exhaust pipe having an exhaust passage for exhausting air;

the heat insulation assembly comprises a protective layer sleeved on the exhaust pipe, a heat insulation layer clamped between the exhaust pipe and the protective layer, and an annular retainer ring arranged on the exhaust pipe and the protective layer; an annular cavity for accommodating the heat insulation layer is formed between the protective layer and the exhaust pipe, and the annular retainer ring is used for sealing two ends of the annular cavity;

and a mounting plate disposed at an end of the exhaust pipe to mount an exhaust device.

As a further optimization, the exhaust pipe is provided with an insulation section Q1, a heat dissipation section Q2 and an insulation section Q3, and the insulation section Q1 and the insulation section Q3 are both provided with the insulation assembly.

As a further optimization, the heat dissipation section Q2 is located between the insulating section Q1 and the insulating section Q3.

Preferably, the inner ring and the outer ring of the annular retainer ring are respectively welded on the exhaust pipe and the protective layer.

As a further optimization, the protective layer is an annular geometry made of a metal foil.

As further optimization, the heat insulation layer is made of insulation cotton.

Preferably, the exhaust device has two of the mounting plates, and the two mounting plates are disposed at both ends of the exhaust pipe, respectively.

By adopting the technical scheme, the utility model discloses can gain following technological effect:

the utility model discloses an exhaust apparatus can, prevent the problem that the peripheral spare part of exhaust apparatus damaged because of the high temperature. Specifically, when tail gas enters the exhaust pipe, the temperature of the exhaust pipe can be raised through heat transfer, and the heat insulation layer arranged on the exhaust pipe can play a role in heat insulation, so that the temperature around the exhaust pipe is not too high. In addition, the protective layer has still been set in the outside of heat insulating layer in the present case, because the insulating layer all is materials such as cotton of isolation, easily by wearing and tearing, the protective layer can play the left and right sides of protection insulating layer. Meanwhile, the heat insulation layer is positioned in the annular cavity formed by the exhaust pipe, the protective layer and the annular retainer ring, so that the heat insulation layer can be positioned in a sealed environment, liquid such as water and the like is prevented from flowing onto the heat insulation layer, and the reliable heat insulation effect of the heat insulation layer is ensured; if a liquid such as water flows onto the heat insulating layer, the heat conductivity of the heat insulating layer is improved, and the heat insulating effect is lost.

Through the technical scheme, the exhaust device can prevent the situation that the temperature around the exhaust device is too high in the exhaust process, prevent the problem that parts around the exhaust device are damaged due to high temperature, and has good practicability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic axial side view of an exhaust device according to an embodiment of the present invention;

FIG. 2 is a schematic sectional view of a portion of the direction A-A shown in FIG. 1;

FIG. 3 is a bottom-partial cross-sectional view of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

the labels in the figure are: 1-an exhaust pipe; 2-an insulating assembly; 3-mounting a disc; 4-a protective layer; 5-a heat insulation layer; 6-an exhaust channel; 7-annular retaining ring.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

as shown in fig. 1 to 4, in the present embodiment, an engine exhaust apparatus includes:

an exhaust pipe 1 having an exhaust passage 6 for exhausting gas;

the heat insulation assembly 2 comprises a protective layer 4 sleeved on the exhaust pipe 1, a heat insulation layer 5 clamped between the exhaust pipe 1 and the protective layer 4, and an annular retainer ring 7 arranged on the exhaust pipe 1 and the protective layer 4; an annular cavity for accommodating the heat insulation layer 5 is formed between the protective layer 4 and the exhaust pipe 1, and the annular retainer ring 7 is used for sealing two ends of the annular cavity;

and a mounting plate 3 disposed at an end of the exhaust pipe 1 for mounting an exhaust device.

The exhaust device of the embodiment can prevent the damage of the parts around the exhaust device due to high temperature. Specifically, when the exhaust gas enters the exhaust pipe 1, the temperature of the exhaust pipe 1 can rise through heat transfer, and the heat insulation layer 5 arranged on the exhaust pipe 1 can play a role in heat insulation, so that the temperature around the exhaust pipe 1 cannot be too high. In addition, protective layer 4 has still been set in the outside of heat insulating layer 5 in the present case, because heat insulating layer 5 all is isolation cotton etc. material, easily by wearing and tearing, protective layer 4 can play the left and right sides of protection heat insulating layer 5. Meanwhile, the heat insulation layer 5 is positioned in an annular cavity formed by the exhaust pipe 1, the protective layer 4 and the annular retainer ring 7, so that the heat insulation layer 5 can be positioned in a sealed environment, liquid such as water and the like is prevented from flowing onto the heat insulation layer 5, and the reliable heat insulation effect of the heat insulation layer 5 is ensured; if a liquid such as water flows onto the heat insulating layer 5, the heat conductivity of the heat insulating layer 5 is improved, and the heat insulating effect is lost.

As shown in fig. 1, in the present embodiment, the exhaust pipe 1 has an insulating section Q1, a heat radiating section Q2, and an insulating section Q3, and each of the insulating section Q1 and the insulating section Q3 is provided with the insulating assembly 2. Wherein the heat dissipation section Q2 is positioned between the heat insulation section Q1 and the heat insulation section Q3.

Specifically, the heat dissipation section Q2 is used to be located in an area where there are no important peripheral components, and the heat dissipation section Q2 can release a part of the heat in the exhaust pipe 1, so as to ensure that the use effect and the service life of the thermal insulation layer 5 are increased during the exhaust process of the exhaust device. In addition, because the heat dissipation section Q2 is not provided with the heat insulation assembly 2, the radial dimension of the heat dissipation section Q2 is smaller than that of the heat insulation section Q1 and the heat insulation section Q3, so that an annular groove structure is formed, the contact between the heat dissipation section Q2 and other parts, wires and the like can be effectively prevented, and meanwhile, the heat dissipation space of the heat dissipation section Q2 is increased.

As shown in fig. 2 and 3, in the present embodiment, the inner ring and the outer ring of the annular retainer 7 are welded to the exhaust pipe 1 and the protective layer 4, respectively. Specifically, the welding positions of the annular retainer ring 7, the exhaust pipe 1 and the protective layer 4 are close to the heat insulation layer 5.

As shown in fig. 2, 3 and 4, in this embodiment, the protection layer 4 is an annular geometric body made of metal foil, the thermal insulation layer 5 is made of insulation cotton, and the exhaust pipe 1 is made of stainless steel. Specifically, in the present embodiment, the exhaust pipe 1 is a stainless steel pipe having a diameter of 89mm, the protective layer 4 is a thin metal plate having a diameter of 109mm, and the heat insulating layer 5 is heat insulating cotton having a thickness T of 10 mm. In another embodiment, the thermal insulation layer 5 may be made of other thermal insulation materials.

As shown in fig. 1, in the present embodiment, the exhaust device has two mounting disks 3, and the two mounting disks 3 are disposed at both ends of the exhaust pipe 1. Specifically, during actual installation, both ends of the exhaust pipe 1 are respectively mounted to the vehicle or other devices via the mounting plates 3.

Through the exhaust apparatus of this embodiment, exhaust apparatus can prevent the condition of exhaust apparatus peripheral high temperature in the exhaust process, prevents the problem that the peripheral spare part of exhaust apparatus from damaging because of high temperature, has fine practicality.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An engine exhaust apparatus, comprising:

an exhaust pipe (1) having an exhaust passage (6) for exhausting gas;

the heat insulation assembly (2) comprises a protective layer (4) sleeved on the exhaust pipe (1), a heat insulation layer (5) clamped between the exhaust pipe (1) and the protective layer (4), and an annular retainer ring (7) arranged on the exhaust pipe (1) and the protective layer (4); an annular cavity for containing the heat insulation layer (5) is formed between the protective layer (4) and the exhaust pipe (1), and the annular retainer ring (7) is used for sealing two ends of the annular cavity;

and a mounting plate (3) which is arranged at an end of the exhaust pipe (1) and on which an exhaust device is mounted.

2. An engine exhaust arrangement according to claim 1, characterized in that the exhaust pipe (1) has an insulating section Q1, a heat dissipating section Q2, and an insulating section Q3, both the insulating section Q1 and the insulating section Q3 being provided with the insulating assembly (2).

3. An engine exhaust as set forth in claim 2 wherein said heat dissipating section Q2 is located between said insulating section Q1 and said insulating section Q3.

4. An engine exhaust arrangement according to claim 1, characterized in that the inner and outer rings of the annular retainer (7) are welded to the exhaust pipe (1) and the protective layer (4), respectively.

5. An engine exhaust according to claim 1, characterized in that the protective layer (4) is an annular geometry made of metal foil.

6. The engine exhaust device according to claim 1, characterized in that the material of the thermal insulation layer (5) is insulation cotton.

7. An engine exhaust device according to claim 1, characterized in that the exhaust device has two mounting discs (3), the two mounting discs (3) being arranged at respective ends of the exhaust pipe (1).