High-temperature-resistant exhaust pipe with steering function

Abstract

The utility model relates to the technical field of exhaust pipes, in particular to a high-temperature-resistant exhaust pipe with a steering function, which comprises a pipe body, the pipe body comprises a first pipe body part, a second pipe body part, a third pipe body part and three corrugated pipe connecting parts, the second pipe body part is positioned between the first pipe body part and the third pipe body part, and the third pipe body part is positioned between the first pipe body part and the third pipe body part; the two ends of one corrugated pipe connecting part are connected with one end of the first pipe body part and one end of the second pipe body part respectively, the two ends of the other corrugated pipe connecting part are connected with the other end of the third pipe body part and the other end of the second pipe body part respectively, and the other corrugated pipe connecting part is arranged at the end, away from the second pipe body part, of the first pipe body part. Through the arrangement of the corrugated pipe connecting part, the advantage that the angle of the pipe body can be adjusted is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of exhaust pipes, and more specifically to a high-temperature resistant exhaust pipe with a self-directing function. Background Art

[0002] The exhaust pipe is part of the engine's exhaust system.

[0003] Existing exhaust pipe, such as Figure 1 As shown, the exhaust pipe comprises a tube body 90 and two connectors 91, each located at either end of the tube body 90 and welded to the tube body 90. The tube body 90 is a hard steel tube, and the connectors 91 connect the exhaust pipe to the exterior vehicle body. However, because the connectors 91 are welded to the tube body 90 and the tube body 90 is a hard steel tube, the angle of the tube body 90 itself is difficult to adjust, and the connectors 91 cannot rotate circumferentially relative to the tube body 90, making assembly inconvenient.

[0004] Therefore, there is a demand for providing a high-temperature resistant exhaust pipe with an adjustable pipe body angle, circumferentially rotatable connecting parts, and high-temperature resistance and a self-steering function. Utility Model Content

[0005] The main purpose of the present application is to provide a high-temperature resistant exhaust pipe with a self-steering function, wherein the high-temperature resistant exhaust pipe with a self-steering function includes a tube body, and the tube body includes a first tube body portion, a second tube body portion, a third tube body portion and three bellows connecting portions, the second tube body portion is located between the first tube body portion and the third tube body portion, and the two ends of one bellows connecting portion are respectively connected to one end of the first tube body portion and the second tube body portion, and the two ends of another bellows connecting portion are respectively connected to the other end of the third tube body portion and the second tube body portion, and another bellows connecting portion is provided at one end of the first tube body portion away from the second tube body portion, and the advantage of the adjustable angle of the tube body itself is achieved by setting the bellows connecting portion.

[0006] Another object of the present application is to provide a high-temperature resistant exhaust pipe with a self-steering function, wherein the first tube body portion and the third tube body portion both have a flange portion, the maximum radial dimension of the flange portion is larger than the diameter of the tube body, and the high-temperature resistant exhaust pipe with a self-steering function also includes two connecting parts, each of the connecting parts has a through hole, an expanded hole and a plurality of first connecting holes, the expanded hole is located at one end of the through hole, and the maximum radial dimension of the expanded hole is larger than the maximum radial dimension of the through hole, the first connecting hole is located on both sides of the through hole, the two connecting parts are rotatably arranged on the first tube body portion and the third tube body portion respectively, and the two flange portions pass through the through hole, and the flange portion is in contact with the bottom wall of the expanded hole, and the advantage of the connecting part being able to rotate circumferentially is achieved by making the connecting part rotatably sleeved on the tube body.

[0007] In order to achieve at least one of the above-mentioned invention objectives, the present application provides a high-temperature resistant exhaust pipe with a self-steering function, wherein the high-temperature resistant exhaust pipe with a self-steering function comprises:

[0008] A tube body, the tube body includes a first tube body portion, a second tube body portion, a third tube body portion and three bellows connecting portions, the second tube body portion is located between the first tube body portion and the third tube body portion, and the two ends of one bellows connecting portion are respectively connected to one end of the first tube body portion and the second tube body portion, the two ends of another bellows connecting portion are respectively connected to the other end of the third tube body portion and the second tube body portion, and another bellows connecting portion is provided at one end of the first tube body portion away from the second tube body portion.

[0009] In one or more embodiments of the present application, the first tube body portion and the third tube body portion each have a flange portion, the maximum radial dimension of the flange portion is greater than the diameter of the tube body, and the high-temperature resistant exhaust pipe with self-steering function also includes two connecting parts, each of the connecting parts has a through hole, a reaming hole and a plurality of first connecting holes, the reaming hole is located at one end of the through hole, and the maximum radial dimension of the reaming hole is greater than the maximum radial dimension of the through hole, the first connecting hole is located on both sides of the through hole, the two connecting parts are rotatably arranged on the first tube body portion and the third tube body portion respectively, and the two flange portions pass through the through hole, and the flange portions are in contact with the bottom wall of the reaming hole.

[0010] In one or more embodiments of the present application, the high-temperature resistant exhaust pipe with self-steering function also includes a plurality of limit sleeves, each of the connecting parts is provided with a limit sleeve, each of the limit sleeves includes a snap-fit ​​surface, a plurality of first extension ends, a plurality of second extension ends and a plurality of second connection holes, the first extension end and the second extension end are bent at a predetermined angle from the side of the snap-fit ​​surface, each of the first extension ends has a bending piece, each of the snap-fit ​​surfaces abuts against one end face of the corresponding connecting part, and the first extension end and the second extension end are both attached to the side of the connecting part, and the bending piece abuts against the other end face of the connecting part, and the second connection hole is opposite to the first connection hole.

[0011] In one or more embodiments of the present application, the connecting piece on the first tube body is provided at an end portion of the first tube body away from the second tube body, and the connecting piece on the third tube body is provided at a middle section of the third tube body.

[0012] In one or more embodiments of the present application, the first tube body portion, the second tube body portion and the third tube body portion are all circular tubes, and the cross-section of one end of the third tube body portion away from the first tube body portion is elliptical.

[0013] In one or more embodiments of the present application, the tube body is made of 321 stainless steel.

[0014] In an embodiment of the present application, a high-temperature resistant exhaust pipe with a built-in steering function includes a tube body, which includes a first tube body portion, a second tube body portion, a third tube body portion and three bellows connecting portions. The second tube body portion is located between the first tube body portion and the third tube body portion, and the two ends of a bellows connecting portion are respectively connected to one end of the first tube body portion and the second tube body portion, and the two ends of another bellows connecting portion are respectively connected to the other end of the third tube body portion and the second tube body portion, and another bellows connecting portion is provided at one end of the first tube body portion away from the second tube body portion. The advantage of the adjustable angle of the tube body itself is achieved by setting the bellows connecting portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] These and / or other aspects and advantages of the present application will become more clear and easier to understand from the following detailed description of the embodiments of the present application in conjunction with the accompanying drawings, in which:

[0016] Figure 1 The figure shows a schematic structural diagram of an existing exhaust pipe;

[0017] Figure 2 The figure shows a schematic structural diagram of a high-temperature resistant exhaust pipe with a self-steering function according to the present invention;

[0018] Figure 3 The figure shows a schematic structural diagram of the tube body;

[0019] Figure 4 A cross-sectional view of a connector is shown;

[0020] Figure 5 The figure shows a schematic structural diagram of the limit sleeve. DETAILED DESCRIPTION

[0021] The terms and words used in the following description and claims are not limited to the literal meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustration purposes only and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0022] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0023] Although ordinal numbers such as "first," "second," and the like will be used to describe various components, these are not intended to limit those components. The terms are used solely to distinguish one component from another. For example, a first component could be referred to as a second component, and similarly, a second component could be referred to as a first component without departing from the teachings of the utility model. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0024] The terms used herein are for the purpose of describing various embodiments only and are not intended to be limiting. As used herein, the singular is intended to include the plural, unless the context clearly indicates otherwise. It will also be understood that the terms "comprising" and / or "having" when used in this specification specify the presence of a stated feature, number, step, operation, component, element, or combination thereof, and do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

[0025] Schematic diagram of high-temperature resistant exhaust pipe with steering function, reference Figures 2 to 5 According to a preferred embodiment of the present invention, a high temperature resistant exhaust pipe with a self-steering function is provided. Figure 2 and Figure 3As shown, it includes a tube body 10, which includes a first tube body portion 101, a second tube body portion 102, a third tube body portion 103 and three bellows connecting portions 104, the second tube body portion 102 is located between the first tube body portion 101 and the third tube body portion 103, and the two ends of one bellows connecting portion 104 are respectively connected to one end of the first tube body portion 101 and the second tube body portion 102, the two ends of another bellows connecting portion 104 are respectively connected to the other end of the third tube body portion 103 and the second tube body portion 102, and another bellows connecting portion 104 is provided at one end of the first tube body portion 101 away from the second tube body portion 102.

[0026] It should be noted that, by providing the bellows connecting portion 104, the first tube body portion 101, the second tube body portion 102 and the third tube body portion 103 can be adjusted in angle relative to each other, so that the first tube body portion 101 or the second tube body portion 102 or the third tube body portion 103 can avoid components on the vehicle body, thereby meeting the complex installation environment of the vehicle body. Compared with the existing technology, it has the advantage that the angle of the tube body 10 itself can be adjusted.

[0027] Furthermore, if Figure 3 As shown, the first tube portion 101 and the third tube portion 103 each have a flange portion 1011, and the maximum radial dimension of the flange portion 1011 is greater than the diameter of the tube body 10. Figure 2 and Figure 4 As shown, the high-temperature resistant exhaust pipe with self-steering function also includes two connecting parts 20, each of the connecting parts 20 has a through hole 201, a reaming hole 202 and a plurality of first connecting holes 203, the reaming hole 202 is located at one end of the through hole 201, and the maximum radial dimension of the reaming hole 202 is greater than the maximum radial dimension of the through hole 201, the first connecting holes 203 are located on both sides of the through hole 201, the two connecting parts 20 are rotatably arranged on the first tube body part 101 and the third tube body part 103 respectively, and the two flanging parts 1011 pass through the through hole 201, and the flanging parts 1011 are in contact with the bottom wall of the reaming hole 202.

[0028] It should be noted that the tube body 10 is connected to the external vehicle body by bolt connection through the first connecting hole 203 on the connecting member 20, and the flange portion 1011 is provided on the first tube body portion 101 and the third tube body portion 103 to limit the axial movement of the connecting member 20 in a single direction, that is, to prevent the connecting member 20 from detaching from the first tube body portion 101 and the third tube body portion 103, while the connecting member 20 mounted on the tube body 10 can freely rotate circumferentially.

[0029] Furthermore, in order to achieve the position fixation of the connecting member 20 along the axial direction of the tube body 10, as shown in FIG. Figure 2 and Figure 5 As shown, the high-temperature resistant exhaust pipe with built-in steering function also includes a plurality of limiting sleeves 30, each of the connecting parts 20 is provided with a limiting sleeve 30, each of the limiting sleeves 30 includes a snap-fit ​​surface 301, a plurality of first extension ends 302, a plurality of second extension ends 303 and a plurality of second connecting holes 304, the first extension ends 302 and the second extension ends 303 are bent at a predetermined angle from the side of the snap-fit ​​surface 301, each of the first extension ends 302 has a bending piece 3021, each of the snap-fit ​​surfaces 301 abuts against one end face of the corresponding connecting part 20, and the first extension end 302 and the second extension end 303 are both attached to the side of the connecting part 20, and the bending piece 3021 abuts against the other end face of the connecting part 20, and the second connecting hole 304 is opposite to the first connecting hole 203.

[0030] It should be noted that, by making the side of the fastening surface 301 having the first extension end 302 fit with the end face of the connector 20 away from the second tube portion 102, and making the bent piece 3021 abut against the end of the connector 20 close to the second tube portion 102, it should be noted that, if Figure 5 As shown, each of the limiting sleeves 30 further has a flow hole 305. When the fastening surface 301 abuts against the connecting member 20, the flow hole 305 is coaxially arranged with the through hole 201, and the aperture of the flow hole 305 is smaller than the maximum radial dimension of the flange portion 1011. At this time, the fastening surface 301 is blocked by the flange portion 1011 and is not easy to move toward the second tube body portion 102. The bent piece 3021 will limit the movement of the connecting member 20 toward the second tube body portion 102, thereby achieving the fixed position of the connecting member 20 in the axial direction. At the same time, the connecting member 20 can still rotate circumferentially around the tube body 10. Obviously, compared with the prior art in which the connecting member 20 is welded to the tube body 10, the embodiment of the present application has the advantage that the connecting member 20 can rotate circumferentially.

[0031] It should also be noted that, by providing the bending piece 3021 that can be bent at a predetermined angle, the limiting sleeve 30 can adapt to the connector 20 of different thicknesses; in addition, the second extension end 303 serves as a guide during installation.

[0032] Furthermore, in the embodiments of the present application, Figure 2As shown, the connector 20 on the first tube portion 101 is located at one end of the first tube portion 101 facing away from the second tube portion 102, and the connector 20 on the third tube portion 103 is located in the middle section of the third tube portion 103. Furthermore, the first tube portion 101, the second tube portion 102, and the third tube portion 103 are all circular tubes. It should be noted that in this embodiment of the present application, gas flows into the first tube portion 101 and out of the third tube portion 103.

[0033] Furthermore, in order to increase the exhaust flow of the third tube portion 103 away from the end of the second tube portion 102, as shown in FIG. Figure 3 As shown, the cross section of one end of the third tube portion 103 away from the first tube portion 101 is elliptical.

[0034] Furthermore, in order to improve the heat resistance of the high-temperature resistant exhaust pipe with self-steering function, the material of the pipe body 10 is 321 stainless steel, which has the advantage of high temperature resistance compared with traditional exhaust pipes.

[0035] It should also be added that the self-rotating function means that the angle of the tube body 10 itself can be adjusted, and the connecting member 20 can rotate circumferentially.

[0036] In summary, the high-temperature resistant exhaust pipe with its own steering function is explained based on the embodiment of the present application, which provides the high-temperature resistant exhaust pipe with its own steering function with advantages such as adjustable angle of the pipe body itself, circumferential rotation of the connecting parts, and high temperature resistance.

[0037] It is worth mentioning that in the embodiments of this application, the high-temperature resistant exhaust pipe with a self-steering function has a simple structure, does not involve complex manufacturing processes and expensive materials, and is highly economical. Furthermore, for manufacturers, the high-temperature resistant exhaust pipe with a self-steering function provided in this application is easy to produce and is low-cost, which is more conducive to controlling production costs and further promoting product promotion and use.

[0038] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are provided for illustrative purposes only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from these principles.

Claims

1. A high-temperature resistant exhaust pipe with a self-steering function, characterized by: The high temperature resistant exhaust pipe with self-steering function includes A tube body, the tube body includes a first tube body portion, a second tube body portion, a third tube body portion and three bellows connecting portions, the second tube body portion is located between the first tube body portion and the third tube body portion, and the two ends of one bellows connecting portion are respectively connected to one end of the first tube body portion and the second tube body portion, the two ends of another bellows connecting portion are respectively connected to the other end of the third tube body portion and the second tube body portion, and another bellows connecting portion is provided at one end of the first tube body portion away from the second tube body portion, and the first tube body portion and the third tube body portion each have a flange The maximum radial dimension of the flanging portion is greater than the diameter of the tube body. The high-temperature resistant exhaust pipe with self-steering function also includes two connecting parts, each of the connecting parts has a through hole, a reaming hole and a plurality of first connecting holes. The reaming hole is located at one end of the through hole, and the maximum radial dimension of the reaming hole is greater than the maximum radial dimension of the through hole. The first connecting hole is located on both sides of the through hole. The two connecting parts are rotatably arranged on the first tube body and the third tube body respectively, and the two flanging parts are penetrated by the through holes, and the flanging parts are in contact with the bottom wall of the reaming hole.

2. The high-temperature resistant exhaust pipe with self-steering function according to claim 1, characterized in that: The high-temperature resistant exhaust pipe with built-in steering function also includes several limiting sleeves, each of the connecting parts is provided with a limiting sleeve, each of the limiting sleeves includes a snap-fit ​​surface, several first extension ends, several second extension ends and several second connecting holes, the first extension end and the second extension end are bent at a predetermined angle from the side of the snap-fit ​​surface, each of the first extension ends has a bending piece, each of the snap-fit ​​surfaces abuts against one end face of the corresponding connecting part, and the first extension end and the second extension end are both attached to the side of the connecting part, and the bending piece abuts against the other end face of the connecting part, and the second connecting hole is opposite to the first connecting hole.

3. The high-temperature resistant exhaust pipe with self-steering function according to claim 2, characterized in that: The connecting piece on the first tube body is provided at one end portion of the first tube body away from the second tube body, and the connecting piece on the third tube body is provided at a middle section of the third tube body.

4. The high-temperature resistant exhaust pipe with self-steering function according to claim 3, characterized in that: The first tube body portion, the second tube body portion, and the third tube body portion are all circular tubes, and a cross-section of an end portion of the third tube body portion away from the first tube body portion is elliptical.

5. The high-temperature resistant exhaust pipe with self-steering function according to any one of claims 1 to 4, characterized in that: The material of the tube body is 321 stainless steel.

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